versions: Update version to 4.4.0

mdns: Fix alloc issue if TXT has empty value

See merge request espressif/esp-idf!16889

.editorconfig

@@ -37,3 +37,7 @@ max_line_length = 119
 indent_style = space
 indent_size = 4
 max_line_length = 120
+
+[{*.sh,*.yml,*.yaml}]
+indent_style = space
+indent_size = 2

.flake8

@@ -141,18 +141,19 @@ exclude =
     __pycache__,
     # submodules
         components/bootloader/subproject/components/micro-ecc/micro-ecc,
+        components/bt/host/nimble/nimble,
+        components/cmock/CMock,
         components/esptool_py/esptool,
         components/expat/expat,
         components/json/cJSON,
         components/libsodium/libsodium,
         components/mbedtls/mbedtls,
         components/nghttp/nghttp2,
-        components/bt/host/nimble/nimble,
+        components/openthread/openthread,
+        components/tinyusb,
         components/unity/unity,
         examples/build_system/cmake/import_lib/main/lib/tinyxml2,
-    # other third-party libraries
-        tools/kconfig_new/kconfiglib.py,
-        tools/kconfig_new/menuconfig.py,
+        examples/peripherals/secure_element/atecc608_ecdsa/components/esp-cryptoauthlib,
     # autogenerated scripts
         components/protocomm/python/constants_pb2.py,
         components/protocomm/python/sec0_pb2.py,
@@ -162,4 +163,8 @@ exclude =
         components/wifi_provisioning/python/wifi_config_pb2.py,
         components/wifi_provisioning/python/wifi_constants_pb2.py,
         components/esp_local_ctrl/python/esp_local_ctrl_pb2.py,
-        examples/provisioning/custom_config/components/custom_provisioning/python/custom_config_pb2.py,
+        examples/provisioning/legacy/custom_config/components/custom_provisioning/python/custom_config_pb2.py,
+
+per-file-ignores =
+    # Sphinx conf.py files use star imports to setup config variables
+        docs/conf_common.py: F405

.github/ISSUE_TEMPLATE/bug_report.md

@@ -24,7 +24,7 @@ If the issue cannot be solved after the steps before, please follow these instru
 
 1. Fill in all the fields under **Environment** marked with [ ] by picking the correct option for you in each case and deleting the others.
 2. Describe your problem.
-3. Include [debug logs from the "monitor" tool](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html#automatically-decoding-addresses), or [coredumps](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/core_dump.html).
+3. Include [debug logs from the "monitor" tool](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/tools/idf-monitor.html), or [coredumps](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/core_dump.html).
 4. Providing as much information as possible under **Other items if possible** will help us locate and fix the problem.
 5. Use [Markdown](https://guides.github.com/features/mastering-markdown/) (see formatting buttons above) and the Preview tab to check what the issue will look like.
 6. Delete these instructions from the above to the below marker lines before submitting this issue.
@@ -38,7 +38,7 @@ If the issue cannot be solved after the steps before, please follow these instru
 - Development Kit:      [ESP32-Wrover-Kit|ESP32-DevKitC|ESP32-PICO-Kit|ESP32-LyraT|ESP32-LyraTD-MSC|none]
 - Kit version (for WroverKit/PicoKit/DevKitC): [v1|v2|v3|v4]
 - Module or chip used:  [ESP32-WROOM-32|ESP32-WROOM-32D|ESP32-WROOM-32U|ESP32-WROVER|ESP32-WROVER-I|ESP32-WROVER-B|ESP32-WROVER-IB|ESP32-SOLO-1|ESP32-PICO-D4|ESP32]
-- IDF version (run ``git describe`` to find it):
+- IDF version (run ``git describe --tags`` to find it):
     // v3.2-dev-1148-g96cd3b75c
 - Build System:         [Make|CMake|idf.py]
 - Compiler version (run ``xtensa-esp32-elf-gcc --version`` to find it):

.github/ISSUE_TEMPLATE/config.yml

@@ -12,5 +12,3 @@ contact_links:
   - name: Hardware-related services
     url: https://www.espressif.com/en/products/hardware-services
     about: Espressif service providing hardware design and certification support
-
-

.github/workflows/python_lint.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [2.7, 3.5, 3.6, 3.7]
+        python-version: [3.6, 3.7, 3.8]
 
     steps:
       - name: Checkout
@@ -24,9 +24,10 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
+          export IDF_PATH=${GITHUB_WORKSPACE}
           pip install --upgrade pip
           pip install -r requirements.txt
       - name: Lint with flake8
         run: |
           pip install flake8
-          flake8 . --config=.flake8
+          flake8 . --config=.flake8 --benchmark

.gitignore

@@ -21,19 +21,18 @@ GPATH
 # MacOS directory files
 .DS_Store
 
+# Components Unit Test Apps files
+components/**/build
+components/**/sdkconfig
+components/**/sdkconfig.old
+
 # Example project files
 examples/**/sdkconfig
 examples/**/sdkconfig.old
 examples/**/build
 
 # Doc build artifacts
-docs/*/_build/
-docs/*/doxygen-warning-log.txt
-docs/*/sphinx-warning-log.txt
-docs/*/sphinx-warning-log-sanitized.txt
-docs/*/xml/
-docs/*/xml_in/
-docs/*/man/
+docs/_build/
 docs/doxygen_sqlite3.db
 
 # Downloaded font files
@@ -46,6 +45,15 @@ tools/unit-test-app/sdkconfig.old
 tools/unit-test-app/build
 tools/unit-test-app/builds
 tools/unit-test-app/output
+tools/unit-test-app/test_configs
+
+# Unit Test CMake compile log folder
+log_ut_cmake
+
+# test application build files
+tools/test_apps/**/build
+tools/test_apps/**/sdkconfig
+tools/test_apps/**/sdkconfig.old
 
 # IDF monitor test
 tools/test_idf_monitor/outputs
@@ -79,4 +87,7 @@ flake8_output.txt
 build
 
 # lock files for examples and components
-dependencies.lock
+dependencies.lock
+
+# managed_components for examples
+managed_components

.gitlab-ci.yml

@@ -2,22 +2,26 @@ stages:
   - pre_check
   - build
   - assign_test
-  - host_test
+  - build_doc
   - target_test
-  - post_check
+  - host_test
+  - test_deploy
   - deploy
-  - post_check
+  - post_deploy
 
-# pipelines will not be created in such two cases:
-# 1. MR push
-# 2. push not on "master/release" branches, and not tagged
-# This behavior could be changed after the `rules: changes` feature is implemented
 workflow:
   rules:
-    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
-      when: never
+    # Disable those non-protected push triggered pipelines
     - if: '$CI_COMMIT_REF_NAME != "master" && $CI_COMMIT_BRANCH !~ /^release\/v/ && $CI_COMMIT_TAG !~ /^v\d+\.\d+(\.\d+)?($|-)/ && $CI_PIPELINE_SOURCE == "push"'
       when: never
+    # when running merged result pipelines, it would create a temp commit id. use $CI_MERGE_REQUEST_SOURCE_BRANCH_SHA instead of $CI_COMMIT_SHA.
+    # Please use PIPELINE_COMMIT_SHA at all places that require a commit sha
+    - if: $CI_OPEN_MERGE_REQUESTS != null
+      variables:
+        PIPELINE_COMMIT_SHA: $CI_MERGE_REQUEST_SOURCE_BRANCH_SHA
+    - if: $CI_OPEN_MERGE_REQUESTS == null
+      variables:
+        PIPELINE_COMMIT_SHA: $CI_COMMIT_SHA
     - when: always
 
 variables:
@@ -45,100 +49,67 @@ variables:
   # tell build system do not check submodule update as we download archive instead of clone
   IDF_SKIP_CHECK_SUBMODULES: 1
 
-  UNIT_TEST_BUILD_SYSTEM: cmake
-  EXAMPLE_TEST_BUILD_SYSTEM: cmake
   IDF_PATH: "$CI_PROJECT_DIR"
   BATCH_BUILD: "1"
   V: "0"
-  APPLY_BOT_FILTER_SCRIPT: "$CI_PROJECT_DIR/tools/ci/apply_bot_filter.py"
   CHECKOUT_REF_SCRIPT: "$CI_PROJECT_DIR/tools/ci/checkout_project_ref.py"
 
   # Docker images
   BOT_DOCKER_IMAGE_TAG: ":latest"
+  ESP_IDF_DOC_ENV_IMAGE: "$CI_DOCKER_REGISTRY/esp-idf-doc-env:v4.4-1-v4"
+  ESP_ENV_IMAGE: "$CI_DOCKER_REGISTRY/esp-env:v4.4-1"
+  AFL_FUZZER_TEST_IMAGE: "$CI_DOCKER_REGISTRY/afl-fuzzer-test:v4.4-1-1"
+  CLANG_STATIC_ANALYSIS_IMAGE: "${CI_DOCKER_REGISTRY}/clang-static-analysis:v4.4-1-2"
+  SONARQUBE_SCANNER_IMAGE: "${CI_DOCKER_REGISTRY}/sonarqube-scanner:3"
+
   # target test config file, used by assign test job
-  CI_TARGET_TEST_CONFIG_FILE: "$CI_PROJECT_DIR/tools/ci/config/target-test.yml"
+  CI_TARGET_TEST_CONFIG_FILE: "$CI_PROJECT_DIR/.gitlab/ci/target-test.yml"
+
   # target test repo parameters
   TEST_ENV_CONFIG_REPO: "https://gitlab-ci-token:${BOT_TOKEN}@${CI_SERVER_HOST}:${CI_SERVER_PORT}/qa/ci-test-runner-configs.git"
   CI_AUTO_TEST_SCRIPT_REPO_URL: "https://gitlab-ci-token:${BOT_TOKEN}@${CI_SERVER_HOST}:${CI_SERVER_PORT}/qa/auto_test_script.git"
-  CI_AUTO_TEST_SCRIPT_REPO_BRANCH: "ci/v4.1"
-
-# Versioned esp-idf-doc env image to use for all document building jobs
-  ESP_IDF_DOC_ENV_IMAGE: "$CI_DOCKER_REGISTRY/esp-idf-doc-env:v7"
-
-
-
-# before each job, we need to check if this job is filtered by bot stage/job filter
-.apply_bot_filter: &apply_bot_filter
-  python $APPLY_BOT_FILTER_SCRIPT || exit 0
+  CI_AUTO_TEST_SCRIPT_REPO_BRANCH: "ci/v3.1"
 
 .setup_tools_unless_target_test: &setup_tools_unless_target_test |
+  if [[ -n "$IDF_DONT_USE_MIRRORS" ]]; then
+  export IDF_MIRROR_PREFIX_MAP=
+  fi
   if [[ "$SETUP_TOOLS" == "1" || "$CI_JOB_STAGE" != "target_test" ]]; then
-  tools/idf_tools.py --non-interactive install && eval "$(tools/idf_tools.py --non-interactive export)" || exit 1
+  tools/idf_tools.py --non-interactive install ${SETUP_TOOLS_LIST:-} && eval "$(tools/idf_tools.py --non-interactive export)" || exit 1
+    if [[ ! -z "$OOCD_DISTRO_URL" && "$CI_JOB_STAGE" == "target_test" ]]; then
+    echo "Using custom OpenOCD from ${OOCD_DISTRO_URL}"
+    wget $OOCD_DISTRO_URL
+    ARCH_NAME=$(basename $OOCD_DISTRO_URL)
+    tar -x -f $ARCH_NAME
+    export OPENOCD_SCRIPTS=$PWD/openocd-esp32/share/openocd/scripts
+    export PATH=$PWD/openocd-esp32/bin:$PATH
+    fi
   fi
 
-.fetch_submodules: &fetch_submodules |
-  python $SUBMODULE_FETCH_TOOL -s $SUBMODULES_TO_FETCH
-
 before_script:
+  - source tools/ci/utils.sh
   - source tools/ci/setup_python.sh
-  # apply bot filter in before script
-  - *apply_bot_filter
-  # add gitlab ssh key
-  - mkdir -p ~/.ssh
-  - chmod 700 ~/.ssh
-  - echo -n $GITLAB_KEY > ~/.ssh/id_rsa_base64
-  - base64 --decode --ignore-garbage ~/.ssh/id_rsa_base64 > ~/.ssh/id_rsa
-  - chmod 600 ~/.ssh/id_rsa
-  - echo -e "Host gitlab.espressif.cn\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
-  # Set some options and environment for CI
+  - add_gitlab_ssh_keys
   - source tools/ci/configure_ci_environment.sh
   - *setup_tools_unless_target_test
-
-  - *fetch_submodules
+  - fetch_submodules
 
 # used for check scripts which we want to run unconditionally
-.before_script_lesser_nofilter:
-  variables:
-    GIT_SUBMODULE_STRATEGY: none
-  before_script:
-    - echo "Not setting up GitLab key, not fetching submodules, not applying bot filter"
-    - source tools/ci/setup_python.sh
-    - source tools/ci/configure_ci_environment.sh
-
-# used for everything else where we want to do no prep, except for bot filter
-.before_script_lesser:
-  variables:
-    GIT_SUBMODULE_STRATEGY: none
+.before_script_no_sync_submodule:
   before_script:
     - echo "Not setting up GitLab key, not fetching submodules"
+    - source tools/ci/utils.sh
     - source tools/ci/setup_python.sh
-    # apply bot filter in before script
-    - *apply_bot_filter
     - source tools/ci/configure_ci_environment.sh
 
-.check_job_template:
-  stage: pre_check
-  image: $CI_DOCKER_REGISTRY/esp32-ci-env$BOT_DOCKER_IMAGE_TAG
-  tags:
-    - host_test
-  dependencies: []
-  extends: .before_script_lesser_nofilter
-
-.check_job_template_with_filter:
-  stage: pre_check
-  image: $CI_DOCKER_REGISTRY/esp32-ci-env$BOT_DOCKER_IMAGE_TAG
-  tags:
-    - host_test
-  dependencies: []
-  extends: .before_script_lesser_nofilter
-
-.macos_build_template:
-  stage: build
-  tags:
-    - macos_shell
-  dependencies: []
+.before_script_minimal:
   before_script:
-    - *apply_bot_filter
+    - echo "Only load utils.sh"
+    - source tools/ci/utils.sh
+
+.before_script_macos:
+  before_script:
+    - source tools/ci/utils.sh
     - export IDF_TOOLS_PATH="${HOME}/.espressif_runner_${CI_RUNNER_ID}_${CI_CONCURRENT_ID}"
     - $IDF_PATH/tools/idf_tools.py install-python-env
     # On macOS, these tools need to be installed
@@ -150,7 +121,7 @@ before_script:
     - source tools/ci/configure_ci_environment.sh
     # Part of tools/ci/setup_python.sh; we don't use pyenv on macOS, so can't run the rest of the script.
     - export PYTHONPATH="$IDF_PATH/tools:$IDF_PATH/tools/ci/python_packages:$PYTHONPATH"
-    - *fetch_submodules
+    - fetch_submodules
 
 default:
   retry:
@@ -159,10 +130,12 @@ default:
     when: runner_system_failure
 
 include:
-  - '/tools/ci/config/pre_check.yml'
-  - '/tools/ci/config/build.yml'
-  - '/tools/ci/config/assign-test.yml'
-  - '/tools/ci/config/host-test.yml'
-  - '/tools/ci/config/target-test.yml'
-  - '/tools/ci/config/post_check.yml'
-  - '/tools/ci/config/deploy.yml'
+  - '.gitlab/ci/rules.yml'
+  - '.gitlab/ci/docs.yml'
+  - '.gitlab/ci/static-code-analysis.yml'
+  - '.gitlab/ci/pre_check.yml'
+  - '.gitlab/ci/build.yml'
+  - '.gitlab/ci/assign-test.yml'
+  - '.gitlab/ci/host-test.yml'
+  - '.gitlab/ci/target-test.yml'
+  - '.gitlab/ci/deploy.yml'

.gitlab/ci/README.md

@@ -0,0 +1,225 @@
+# IDF CI
+
+- [IDF CI](#idf-ci)
+  - [General Workflow](#general-workflow)
+  - [What if Expected Jobs ARE NOT Created?](#what-if-expected-jobs-are-not-created)
+  - [MR labels for additional jobs](#mr-labels-for-additional-jobs)
+    - [Supported MR Labels](#supported-mr-labels)
+    - [How to trigger a `detached` pipeline without pushing new commits?](#how-to-trigger-a-detached-pipeline-without-pushing-new-commits)
+  - [How to Develop With `rules.yml`?](#how-to-develop-with-rulesyml)
+    - [General Concepts](#general-concepts)
+    - [How to Add a New `Job`?](#how-to-add-a-new-job)
+    - [How to Add a New `Rules` Template?](#how-to-add-a-new-rules-template)
+    - [How to Add a New `if` Anchor?](#how-to-add-a-new-if-anchor)
+    - [Naming Rules](#naming-rules)
+      - [Common Naming Rules](#common-naming-rules)
+      - [`if` Anchors Naming Rules](#if-anchors-naming-rules)
+      - [`rules` Template Naming Rules](#rules-template-naming-rules)
+  - [Reusable Shell Script `tools/ci/utils.sh`](#reusable-shell-script-toolsciutilssh)
+    - [Functions](#functions)
+      - [CI Job Related](#ci-job-related)
+      - [Shell Script Related](#shell-script-related)
+
+## General Workflow
+
+1. Push to a remote branch
+2. Create an MR, choose related labels (not required)
+3. A `detached` pipeline will be created.
+4. if you push a new commit, a new pipeline will be created automatically.
+
+## What if Expected Jobs ARE NOT Created?
+
+1. check the file patterns
+
+   If you found a job that is not running as expected with some file changes, a git commit to improve the `pattern` will be appreciated.
+
+2. please add MR labels to run additional tests, currently we have to do this only for `target-test` jobs, please use it as few as possible. Our final goal is to remove all the labels and let the file changes decide everything!
+
+## MR labels for additional jobs
+
+### Supported MR Labels
+
+- `build`
+- `build_docs`
+- `component_ut[_esp32/esp32s2/...]`
+- `custom_test[_esp32/esp32s2/...]`
+- `docker`
+- `docs`
+- `example_test[_esp32/esp32s2/...]`
+- `fuzzer_test`
+- `host_test`
+- `integration_test`
+- `iperf_stress_test`
+- `macos`
+- `macos_test`
+- `nvs_coverage`
+- `submodule`
+- `unit_test[_esp32/esp32s2/...]`
+- `weekend_test`
+- `windows`
+
+There are two general labels (not recommended since these two labels will trigger a lot of jobs)
+
+- `target_test`: includes all target for `example_test`, `custom_test`, `component_ut`, `unit_test`, `integration_test`
+- `all_test`: includes all test labels
+
+### How to trigger a `detached` pipeline without pushing new commits?
+
+Go to MR web page -> `Pipelines` tab -> click `Run pipeline` button.
+
+In very rare case, this tab will not show up because no merge_request pipeline is created before. Please use web API then.
+
+```shell
+curl -X POST --header "PRIVATE-TOKEN: [YOUR PERSONAL ACCESS TOKEN]" [GITLAB_SERVER]/api/v4/projects/103/merge_requests/[MERGE_REQUEST_IID]/pipelines
+```
+
+## How to Develop With `rules.yml`?
+
+### General Concepts
+
+- `pattern`: Defined in an array. A GitLab job will be created if the changed files in this MR matched one of the patterns. For example:
+
+    ```yaml
+    .patterns-python-files: &patterns-python-files
+      - "**/*.py"
+    ```
+
+- `label`: Defined in an if clause, similar as the previous bot command. A GitLab job will be created if the pipeline variables contains variables in `BOT_LABEL_xxx` format (DEPRECATED) or included in the MR labels. For example:
+
+    ```yaml
+    .if-label-build_docs: &if-label-build_docs
+      if: '$BOT_LABEL_BUILD_DOCS || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*build_docs(?:,[^,\n\r]+)*$/i'
+    ```
+
+- `rule`: A combination of various patterns, and labels. It will be used by GitLab YAML `extends` keyword to tell GitLab in what conditions will this job be created. For example:
+
+    ```yaml
+    .rules:build:docs:
+      rules:
+        - <<: *if-protected
+        - <<: *if-label-build_docs
+        - <<: *if-label-docs
+        - <<: *if-dev-push
+          changes: *patterns-docs
+    ```
+
+  An example for GitLab job on how to use extends:
+
+    ```yaml
+    check_docs_lang_sync:
+      extends:
+        - .pre_check_job_template
+        - .rules:build:docs
+      script:
+        - cd docs
+        - ./check_lang_folder_sync.sh
+    ```
+
+### How to Add a New `Job`?
+
+check if there's a suitable `.rules:<rules-you-need>` template
+
+1. if there is, put this in the job `extends`. All done, now you can close this window. (`extends` could be array or string)
+2. if there isn't
+    1. check [How to Add a New `Rules` Template?](#how-to-add-a-new-rules-template), create a suitable one
+    2. follow step 1
+
+### How to Add a New `Rules` Template?
+
+check if this rule is related to `labels`, `patterns`
+
+1. if it is, please refer to [dependencies/README.md](./dependencies/README.md) and add new rules by auto-generating
+2. if it isn't, please continue reading
+
+check if there's a suitable `.if-<if-anchor-you-need>` anchor
+
+1. if there is, create a rule following [`rules` Template Naming Rules](#rules-template-naming-rules).For detail information, please refer to [GitLab Documentation `rules-if`](https://docs.gitlab.com/ee/ci/yaml/README.html#rulesif). Here's an example.
+
+    ```yaml
+    .rules:dev:
+      rules:
+        - <<: *if-trigger
+        - <<: *if-dev-push
+    ```
+
+2. if there isn't
+
+    1. check [How to Add a New `if` Anchor?](#how-to-add-a-new-if-anchor), create a suitable one
+    2. follow step 1
+
+### How to Add a New `if` Anchor?
+
+Create an `if` anchor following [`if` Anchors Naming Rules](#if-anchors-naming-rules). For detailed information about how to write the condition clause, please refer to [GitLab Documentation `only/except (advanced)](https://docs.gitlab.com/ee/ci/yaml/README.html#onlyexcept-advanced). Here's an example.
+
+```yaml
+.if-schedule: &if-schedule:
+  if: '$CI_PIPELINE_SOURCE == "schedule"'
+```
+
+### Naming Rules
+
+#### Common Naming Rules
+
+if a phrase has multi words, use `_` to concatenate them.
+
+> e.g. `regular_test`
+
+if a name has multi phrases, use `-` to concatenate them.
+
+> e.g. `regular_test-example_test`
+
+#### `if` Anchors Naming Rules
+
+- if it's a label: `.if-label-<label_name>`
+- if it's a ref: `.if-ref-<ref_name>`
+- if it's a branch: `.if-branch-<branch_name>`
+- if it's a tag: `.if-tag-<tag_name>`
+- if it's multi-type combination: `.if-ref-<release_name>-branch-<branch_name>`
+
+  **Common Phrases/Abbreviations**
+
+    - `no_label`
+
+      `$BOT_TRIGGER_WITH_LABEL == null`
+
+    - `protected`
+
+      `($CI_COMMIT_REF_NAME == "master" || $CI_COMMIT_BRANCH =~ /^release\/v/ || $CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/)`
+
+    - `target_test`
+
+      a combination of `example_test`, `custom_test`, `unit_test`, `component_ut`, `integration_test` and all targets
+
+#### `rules` Template Naming Rules
+
+- if it's tag related: `.rules:tag:<tag_1>-<tag_2>`
+- if it's label related: `.rules:labels:<label_1>-<label_2>`
+- if it's test related: `.rules:test:<test_type>`
+- if it's build related: `.rules:build:<build_type>`
+- if it's pattern related: `.rules:patterns:<patterns>`
+
+## Reusable Shell Script `tools/ci/utils.sh`
+
+It is used to put all the reusable shell scripts as small functions. If you want to set `before_script: []` for you job, now you can set `extends: .before_script_slim` instead. it will only run `source tools/ci/utils.sh`
+
+If you're developing CI shell scripts, you can use these functions without `source` them. They're already included in all `before_script`
+
+To run these commands in shell script locally, place `source tools/ci/utils.sh` at the very beginning.
+
+### Functions
+
+#### CI Job Related
+
+- `add_gitlab_ssh_keys`
+- `add_github_ssh_keys`
+- `add_doc_server_ssh_keys`
+- `fetch_submodules`
+- `get_all_submodules`
+
+#### Shell Script Related
+
+- `error`: log in red color
+- `warning`: log in orange color
+- `info`: log in green color
+- `run_cmd`: run the command with duration seconds info
+- `retry_failed`: run the command with duration seconds info, retry when failed

.gitlab/ci/assign-test.yml

@@ -0,0 +1,88 @@
+assign_test:
+  extends: .rules:test:any_test
+  tags:
+    - assign_test
+  image: $CI_DOCKER_REGISTRY/ubuntu-test-env$BOT_DOCKER_IMAGE_TAG
+  stage: assign_test
+  # gitlab ci do not support match job with RegEx or wildcard now in dependencies.
+  # we have a lot build example jobs. now we don't use dependencies, just download all artifacts of build stage.
+  dependencies: # Here is not a hard dependency relationship, could be skipped. so we do not use "needs" here.
+    - build_ssc_esp32
+    - build_esp_idf_tests_cmake_esp32
+    - build_esp_idf_tests_cmake_esp32s2
+    - build_esp_idf_tests_cmake_esp32s3
+    - build_esp_idf_tests_cmake_esp32c3
+  variables:
+    SUBMODULES_TO_FETCH: "components/esptool_py/esptool"
+    EXAMPLE_TEST_DIR: "${CI_PROJECT_DIR}/examples"
+    CUSTOM_TEST_DIR: "${CI_PROJECT_DIR}/tools/test_apps"
+    UNIT_TEST_DIR: "${CI_PROJECT_DIR}/components/idf_test/unit_test"
+    # COMPONENT_UT_DIRS is set by `set_component_ut_vars` in `utils.sh`
+    COMPONENT_UT_OUTPUT_DIR: "${CI_PROJECT_DIR}/component_ut"
+    INTEGRATION_CONFIG_OUTPUT_PATH: "${CI_PROJECT_DIR}/components/idf_test/integration_test/CIConfigs"
+    INTEGRATION_TEST_CASE_PATH: "${CI_PROJECT_DIR}/auto_test_script/TestCaseFiles"
+    ASSIGN_TEST_CASE_SCRIPT: "${CI_PROJECT_DIR}/auto_test_script/bin/CIAssignTestCases.py"
+    PYTHONPATH: ${CI_PROJECT_DIR}/auto_test_script/packages
+    # auto_test_script only supports python 3.7.x
+    PYTHON_VER: 3.7.7
+  artifacts:
+    paths:
+      - components/idf_test/*/CIConfigs
+      - $EXAMPLE_TEST_DIR/test_configs
+      - $CUSTOM_TEST_DIR/test_configs
+      - $COMPONENT_UT_OUTPUT_DIR/test_configs
+      - build_examples/artifact_index.json
+      - build_test_apps/artifact_index.json
+      - build_component_ut/artifact_index.json
+      - tools/unit-test-app/builds/artifact_index.json
+    expire_in: 1 week
+  script:
+    - set_component_ut_vars
+    - python tools/ci/python_packages/ttfw_idf/IDFAssignTest.py example_test $EXAMPLE_TEST_DIR -c $CI_TARGET_TEST_CONFIG_FILE -o $EXAMPLE_TEST_DIR/test_configs
+    - python tools/ci/python_packages/ttfw_idf/IDFAssignTest.py custom_test $CUSTOM_TEST_DIR -c $CI_TARGET_TEST_CONFIG_FILE -o $CUSTOM_TEST_DIR/test_configs
+    - python tools/ci/python_packages/ttfw_idf/IDFAssignTest.py component_ut $COMPONENT_UT_DIRS -c $CI_TARGET_TEST_CONFIG_FILE -o $COMPONENT_UT_OUTPUT_DIR/test_configs
+    - python tools/ci/python_packages/ttfw_idf/IDFAssignTest.py unit_test $UNIT_TEST_DIR -c $CI_TARGET_TEST_CONFIG_FILE -o $UNIT_TEST_DIR/CIConfigs
+    # clone test script to assign tests
+    # can not retry if downing git lfs files failed, so using empty_branch first.
+    - retry_failed git clone ${CI_AUTO_TEST_SCRIPT_REPO_URL} -b empty_branch
+    - retry_failed git -C auto_test_script checkout -f ${CI_AUTO_TEST_SCRIPT_REPO_BRANCH}
+    - python $CHECKOUT_REF_SCRIPT auto_test_script auto_test_script --customized_only
+    # assign integration test cases
+    - python ${ASSIGN_TEST_CASE_SCRIPT} -t ${INTEGRATION_TEST_CASE_PATH} -c $CI_TARGET_TEST_CONFIG_FILE -b $IDF_PATH/SSC/ssc_bin -o $INTEGRATION_CONFIG_OUTPUT_PATH
+
+update_test_cases:
+  extends: .rules:ref:master-schedule
+  stage: assign_test
+  image: $CI_DOCKER_REGISTRY/ubuntu-test-env
+  tags:
+    - deploy_test
+  needs:
+    - build_esp_idf_tests_cmake_esp32
+    - build_esp_idf_tests_cmake_esp32s2
+    - build_esp_idf_tests_cmake_esp32s3
+    - build_esp_idf_tests_cmake_esp32c3
+  artifacts:
+    when: always
+    paths:
+      - ${CI_PROJECT_DIR}/test-management/*.log
+    expire_in: 1 week
+  variables:
+    SUBMODULES_TO_FETCH: "components/esptool_py/esptool"
+    UNIT_TEST_DIR: "${CI_PROJECT_DIR}/components/idf_test/unit_test"
+    BOT_ACCOUNT_CONFIG_FILE: "${CI_PROJECT_DIR}/test-management/Config/Account.local.yml"
+    AUTO_TEST_SCRIPT_PATH: "${CI_PROJECT_DIR}/auto_test_script"
+    PYTHON_VER: 3.7.7
+  script:
+    - export GIT_SHA=$(echo ${PIPELINE_COMMIT_SHA} | cut -c 1-8)
+    - retry_failed git clone $TEST_MANAGEMENT_REPO
+    - python $CHECKOUT_REF_SCRIPT test-management test-management
+    - cd test-management
+    - echo $BOT_JIRA_ACCOUNT > ${BOT_ACCOUNT_CONFIG_FILE}
+    # update unit test cases
+    - export UNIT_TEST_CASE_FILES=$(find $UNIT_TEST_DIR -maxdepth 1 -name "*.yml" | xargs)
+    - python ImportTestCase.py $JIRA_TEST_MANAGEMENT_PROJECT unity -d $UNIT_TEST_CASE_FILES -r $GIT_SHA
+    # update example test cases
+    - python ImportTestCase.py $JIRA_TEST_MANAGEMENT_PROJECT tiny_test_fw -d ${CI_PROJECT_DIR}/examples -r $GIT_SHA
+    - python ImportTestCase.py $JIRA_TEST_MANAGEMENT_PROJECT tiny_test_fw -d ${CI_PROJECT_DIR}/tools/test_apps -r $GIT_SHA
+    # organize test cases
+    - python OrganizeTestCases.py $JIRA_TEST_MANAGEMENT_PROJECT

.gitlab/ci/build.yml

@@ -0,0 +1,388 @@
+.build_template:
+  stage: build
+  image: $ESP_ENV_IMAGE
+  tags:
+    - build
+  variables:
+    SIZE_INFO_LOCATION: "$CI_PROJECT_DIR/size_info.txt"
+  dependencies: []
+
+.build_template_app_template:
+  extends: .build_template
+  variables:
+    LOG_PATH: "${CI_PROJECT_DIR}/log_template_app"
+    BUILD_PATH: "${CI_PROJECT_DIR}/build_template_app"
+    BUILD_DIR: "@t/@w"
+    BUILD_LOG_MAKE: "${LOG_PATH}/make_@t_@w.txt"
+    BUILD_LOG_CMAKE: "${LOG_PATH}/cmake_@t_@w.txt"
+    BUILD_COMMAND_ARGS: ""
+  artifacts:
+    when: always
+    paths:
+      - log_template_app/*
+      - size_info.txt
+      - build_template_app/**/size.json
+  script:
+    # Set the variable for 'esp-idf-template' testing
+    - ESP_IDF_TEMPLATE_GIT=${ESP_IDF_TEMPLATE_GIT:-"https://github.com/espressif/esp-idf-template.git"}
+    - retry_failed git clone ${ESP_IDF_TEMPLATE_GIT}
+    # Try to use the same branch name for esp-idf-template that we're
+    # using on esp-idf. If it doesn't exist then just stick to the default branch
+    - python $CHECKOUT_REF_SCRIPT esp-idf-template esp-idf-template
+    - export PATH="$IDF_PATH/tools:$PATH"
+    - export EXTRA_CFLAGS=${PEDANTIC_CFLAGS}
+    - export EXTRA_CXXFLAGS=${PEDANTIC_CXXFLAGS}
+    # Only do the default cmake build for each target, remaining part are done in the build_template_app job
+    - tools/ci/build_template_app.sh ${BUILD_COMMAND_ARGS}
+    # Check if there are any stray printf/ets_printf references in WiFi libs
+    - cd components/esp_wifi/lib
+    - for dir in esp32 esp32s2; do test $(xtensa-esp32-elf-nm $dir/*.a | grep -w printf | wc -l) -eq 0; done;
+    - for dir in esp32 esp32s2; do test $(xtensa-esp32-elf-nm $dir/*.a | grep -w ets_printf | wc -l) -eq 0; done;
+
+# build-related-pre-check-jobs ------------------------------------------------
+# Build at least one project for each target at earliest stage to reduce build cost for obvious failing commits
+fast_template_app:
+  extends:
+    - .build_template_app_template
+    - .rules:build:target_test
+  stage: pre_check
+  variables:
+    BUILD_COMMAND_ARGS: "-p"
+#------------------------------------------------------------------------------
+
+.build_ssc_template:
+  extends:
+    - .build_template
+    - .rules:build:integration_test
+  artifacts:
+    paths:
+      - SSC/ssc_bin
+    expire_in: 1 week
+  script:
+    - retry_failed git clone $SSC_REPOSITORY
+    - python $CHECKOUT_REF_SCRIPT SSC SSC
+    - cd SSC
+    - MAKEFLAGS= ./ci_build_ssc.sh $TARGET_NAME
+
+build_ssc_esp32:
+  extends: .build_ssc_template
+  parallel: 3
+  variables:
+    TARGET_NAME: "ESP32"
+
+build_ssc_esp32s2:
+  extends: .build_ssc_template
+  parallel: 2
+  variables:
+    TARGET_NAME: "ESP32S2"
+
+build_ssc_esp32c3:
+  extends: .build_ssc_template
+  parallel: 3
+  variables:
+    TARGET_NAME: "ESP32C3"
+
+build_ssc_esp32s3:
+  extends: .build_ssc_template
+  parallel: 3
+  variables:
+    TARGET_NAME: "ESP32S3"
+
+.build_esp_idf_tests_cmake_template:
+  extends: .build_template
+  dependencies:  # set dependencies to null to avoid missing artifacts issue
+  needs:
+    - job: fast_template_app
+      artifacts: false
+    - scan_tests
+  artifacts:
+    paths:
+      - tools/unit-test-app/output/${IDF_TARGET}
+      - tools/unit-test-app/builds/*.json
+      - tools/unit-test-app/builds/${IDF_TARGET}/*/size.json
+      - components/idf_test/unit_test/*.yml
+      - $LOG_PATH
+      - $SIZE_INFO_LOCATION
+    when: always
+    expire_in: 4 days
+  variables:
+    LOG_PATH: "$CI_PROJECT_DIR/log_ut_cmake"
+    BUILD_PATH: ${CI_PROJECT_DIR}/tools/unit-test-app/builds
+    OUTPUT_PATH: ${CI_PROJECT_DIR}/tools/unit-test-app/output
+    BUILD_SYSTEM: "cmake"
+    TEST_TYPE: "unit_test"
+    PYTHON_VER: 3.6.13
+    LDGEN_CHECK_MAPPING: 1
+  script:
+    - ${IDF_PATH}/tools/ci/find_apps_build_apps.sh
+    - cd $CI_PROJECT_DIR/tools/unit-test-app
+    - python tools/UnitTestParser.py ${BUILD_PATH} ${CI_NODE_INDEX:-1}
+
+build_esp_idf_tests_cmake_esp32:
+  extends:
+    - .build_esp_idf_tests_cmake_template
+    - .rules:build:unit_test-esp32
+  parallel: 2
+  variables:
+    IDF_TARGET: esp32
+
+build_esp_idf_tests_cmake_esp32s2:
+  extends:
+    - .build_esp_idf_tests_cmake_template
+    - .rules:build:unit_test-esp32s2
+  parallel: 2
+  variables:
+    IDF_TARGET: esp32s2
+
+build_esp_idf_tests_cmake_esp32s3:
+  extends:
+    - .build_esp_idf_tests_cmake_template
+    - .rules:build:unit_test-esp32s3
+  variables:
+    IDF_TARGET: esp32s3
+
+build_esp_idf_tests_cmake_esp32c3:
+  extends:
+    - .build_esp_idf_tests_cmake_template
+    - .rules:build:unit_test-esp32c3
+  variables:
+    IDF_TARGET: esp32c3
+
+.build_examples_template:
+  extends: .build_template
+  dependencies:  # set dependencies to null to avoid missing artifacts issue
+  needs:
+    - job: fast_template_app
+      artifacts: false
+    - scan_tests
+  variables:
+    TEST_PREFIX: examples
+    TEST_RELATIVE_DIR: examples
+    SCAN_TEST_JSON: ${CI_PROJECT_DIR}/${TEST_RELATIVE_DIR}/test_configs/scan_${IDF_TARGET}_${BUILD_SYSTEM}.json
+    TEST_TYPE: example_test
+    LOG_PATH: ${CI_PROJECT_DIR}/log_${TEST_PREFIX}
+    BUILD_PATH: ${CI_PROJECT_DIR}/build_${TEST_PREFIX}
+    PYTHON_VER: 3.6.13
+    LDGEN_CHECK_MAPPING: 1
+  script:
+    # it's not possible to build 100% out-of-tree and have the "artifacts"
+    # mechanism work, but this is the next best thing
+    - ${IDF_PATH}/tools/ci/find_apps_build_apps.sh
+
+build_examples_make:
+  extends:
+    - .build_examples_template
+    - .rules:build:example_test-esp32
+  stage: host_test
+  # This is a workaround for a rarely encountered issue with building examples in CI.
+  # Probably related to building of Kconfig in 'make clean' stage
+  retry: 1
+  parallel: 8
+  artifacts:
+    paths:
+      - $LOG_PATH
+      - build_${TEST_PREFIX}/*/*/*/build/size.json
+      - $SIZE_INFO_LOCATION
+    when: always
+    expire_in: 4 days
+  variables:
+    BUILD_SYSTEM: make
+    IDF_TARGET: esp32  # currently we only support esp32
+
+# same as above, but for CMake
+.build_examples_cmake_template:
+  extends: .build_examples_template
+  artifacts:
+    paths:
+      - build_${TEST_PREFIX}/list.json
+      - build_${TEST_PREFIX}/list_job_*.json
+      - build_${TEST_PREFIX}/*/*/*/sdkconfig
+      - build_${TEST_PREFIX}/*/*/*/build/size.json
+      - build_${TEST_PREFIX}/*/*/*/build/*.bin
+      - build_${TEST_PREFIX}/*/*/*/build/*.elf
+      - build_${TEST_PREFIX}/*/*/*/build/*.map
+      - build_${TEST_PREFIX}/*/*/*/build/flasher_args.json
+      - build_${TEST_PREFIX}/*/*/*/build/bootloader/*.bin
+      - build_${TEST_PREFIX}/*/*/*/build/partition_table/*.bin
+      - $LOG_PATH
+      - $SIZE_INFO_LOCATION
+    when: always
+    expire_in: 4 days
+  variables:
+    BUILD_SYSTEM: cmake
+
+build_examples_cmake_esp32:
+  extends:
+    - .build_examples_cmake_template
+    - .rules:build:example_test-esp32
+  parallel: 10
+  variables:
+    IDF_TARGET: esp32
+
+build_examples_cmake_esp32s2:
+  extends:
+    - .build_examples_cmake_template
+    - .rules:build:example_test-esp32s2
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32s2
+
+build_examples_cmake_esp32s3:
+  extends:
+    - .build_examples_cmake_template
+    - .rules:build:example_test-esp32s3
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32s3
+
+build_examples_cmake_esp32c3:
+  extends:
+    - .build_examples_cmake_template
+    - .rules:build:example_test-esp32c3
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32c3
+
+.build_test_apps_template:
+  extends: .build_examples_cmake_template
+  variables:
+    TEST_PREFIX: test_apps
+    TEST_RELATIVE_DIR: tools/test_apps
+    TEST_TYPE: custom_test
+  script:
+    - ${IDF_PATH}/tools/ci/find_apps_build_apps.sh
+
+build_test_apps_esp32:
+  extends:
+    - .build_test_apps_template
+    - .rules:build:custom_test-esp32
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32
+
+build_test_apps_esp32s2:
+  extends:
+    - .build_test_apps_template
+    - .rules:build:custom_test-esp32s2
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32s2
+
+build_test_apps_esp32s3:
+  extends:
+    - .build_test_apps_template
+    - .rules:build:custom_test-esp32s3
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32s3
+
+build_test_apps_esp32c3:
+  extends:
+    - .build_test_apps_template
+    - .rules:build:custom_test-esp32c3
+  parallel: 8
+  variables:
+    IDF_TARGET: esp32c3
+
+.build_component_ut_template:
+  extends: .build_test_apps_template
+  variables:
+    TEST_PREFIX: component_ut
+    TEST_RELATIVE_DIR: component_ut
+
+build_component_ut_esp32:
+  extends:
+    - .build_component_ut_template
+    - .rules:build:component_ut-esp32
+  variables:
+    IDF_TARGET: esp32
+
+build_component_ut_esp32s2:
+  extends:
+    - .build_component_ut_template
+    - .rules:build:component_ut-esp32s2
+  variables:
+    IDF_TARGET: esp32s2
+
+build_component_ut_esp32s3:
+  extends:
+    - .build_component_ut_template
+    - .rules:build:component_ut-esp32s3
+  variables:
+    IDF_TARGET: esp32s3
+
+build_component_ut_esp32c3:
+  extends:
+    - .build_component_ut_template
+    - .rules:build:component_ut-esp32c3
+  variables:
+    IDF_TARGET: esp32c3
+
+.test_build_system_template:
+  stage: host_test
+  extends:
+    - .build_template
+    - .rules:build
+  needs:
+    - job: fast_template_app
+      artifacts: false
+  script:
+    - ${IDF_PATH}/tools/ci/test_configure_ci_environment.sh
+    - rm -rf test_build_system
+    - mkdir test_build_system
+    - cd test_build_system
+    - ${IDF_PATH}/tools/ci/${SHELL_TEST_SCRIPT}
+
+test_build_system:
+  extends: .test_build_system_template
+  variables:
+    SHELL_TEST_SCRIPT: test_build_system.sh
+
+test_build_system_cmake:
+  extends: .test_build_system_template
+  variables:
+    SHELL_TEST_SCRIPT: test_build_system_cmake.sh
+
+test_build_system_cmake_macos:
+  extends:
+    - .test_build_system_template
+    - .before_script_macos
+    - .rules:build:macos
+  tags:
+    - macos_shell
+  variables:
+    SHELL_TEST_SCRIPT: test_build_system_cmake.sh
+
+build_docker:
+  extends:
+    - .before_script_minimal
+    - .rules:build:docker
+  stage: host_test
+  needs: []
+  image: espressif/docker-builder:1
+  tags:
+    - build_docker_amd64_brno
+  variables:
+    DOCKER_TMP_IMAGE_NAME: "idf_tmp_image"
+  script:
+    - export LOCAL_CI_REPOSITORY_URL=$CI_REPOSITORY_URL
+    - if [ -n "$LOCAL_GITLAB_HTTPS_HOST" ]; then export LOCAL_CI_REPOSITORY_URL="https://gitlab-ci-token:${CI_JOB_TOKEN}@${LOCAL_GITLAB_HTTPS_HOST}/${CI_PROJECT_PATH}"; fi
+    - if [ -n "$LOCAL_GIT_MIRROR" ]; then export LOCAL_CI_REPOSITORY_URL="${LOCAL_GIT_MIRROR}/${CI_PROJECT_PATH}"; fi
+    - echo "Using repository at $LOCAL_CI_REPOSITORY_URL"
+    - export DOCKER_BUILD_ARGS="--build-arg IDF_CLONE_URL=${LOCAL_CI_REPOSITORY_URL} --build-arg IDF_CLONE_BRANCH_OR_TAG=${CI_COMMIT_REF_NAME} --build-arg IDF_CHECKOUT_REF=${CI_COMMIT_TAG:-$PIPELINE_COMMIT_SHA}"
+    # Build
+    - docker build --tag ${DOCKER_TMP_IMAGE_NAME} ${DOCKER_BUILD_ARGS} tools/docker/
+    # We can't mount $PWD/examples/get-started/blink into the container, see https://gitlab.com/gitlab-org/gitlab-ce/issues/41227.
+    # The workaround mentioned there works, but leaves around directories which need to be cleaned up manually.
+    # Therefore, build a copy of the example located inside the container.
+    - docker run --rm --workdir /opt/esp/idf/examples/get-started/blink ${DOCKER_TMP_IMAGE_NAME} idf.py build
+
+# This job builds template app with permutations of targets and optimization levels
+build_template_app:
+  extends:
+    - .build_template_app_template
+    - .rules:build
+  stage: host_test
+  needs:
+    - job: fast_template_app
+      artifacts: false

.gitlab/ci/dependencies/README.md

@@ -0,0 +1,100 @@
+# How the `generate_rules.py` works
+
+## Functionalities
+
+This script can do only two things:
+
+1. Auto-generate some labels/rules we need and update them in `rules.yml`
+2. Generate a dependency tree graph
+
+## Schema
+
+This file only used basic YAML grammar and has nothing to do with the GitLab version YAML file.
+
+It has five custom keywords:
+
+- `matrix`: An array of sub-arrays, used to replicate rules by formatting strings. You can use the format string everywhere, it will be formatted recursively
+- `labels`: An array of `labels`.
+- `patterns`: An array of `patterns`. Patterns that not included
+- `included_in`: An array of other `rule` names. It indicates the `labels` and `patterns` will be included in all specified `rules` as well
+- `deploy`: An array of strings, used to replicate rules by adding postfix `-<item in deploy array>`. It indicates the extra `label` used in `rules`, which will explain later.
+
+## How to use this file to generate `rules.yml`
+
+Let's take a complicated example to help understand the process
+
+```yaml
+"test-{0}-{1}":
+    matrix:
+        - [a, b]
+        - [c, d]
+    labels:
+        - "{0}-{1}"
+    patterns:
+        - "{0}"
+        - pattern-not-exist
+    included_in:
+        - build-{0}
+```
+
+1. expand the mapping dicts defined by `matrix`
+
+   After this step, it will turn into 4 dicts:
+
+   | key      | labels | patterns | included_in |
+   | -------- | ------ | -------- | ----------- |
+   | test-a-c | a-c    | a        | build-a     |
+   | test-a-d | a-d    | a        | build-a     |
+   | test-b-c | b-c    | b        | build-b     |
+   | test-b-d | b-d    | b        | build-b     |
+
+   **Advanced Usage: You can overwrite a mapping by declaring it again later**, For example:
+
+   If we concatenate this part to the previous example,
+
+    ```yaml
+    # ... The same as the previous example
+    
+    test-a-c:
+        labels:
+            - overwrite
+    ```
+
+   `rule` `test-a-c` will be turned into:
+
+   | key      | labels    |
+   | -------- | --------- |
+   | test-a-c | overwrite |
+
+   **Mappings with the keyword `deploy` will also replicate by adding a postfix `-<item in deploy array>` to the mapping key**
+
+2. create rules by `included_in`
+
+   After this step, it will turn into 6 mapping dicts:
+
+   | key      | labels   | patterns |
+   | -------- | -------- | -------- |
+   | test-a-c | a-c      | a        |
+   | test-a-d | a-d      | a        |
+   | test-b-c | b-c      | b        |
+   | test-b-d | b-d      | b        |
+   | build-a  | a-c, a-d | a        |
+   | build-b  | b-c, b-d | b        |
+
+3. replace the auto-generated region in `rules.yml` with `labels`, and `rules`. Each mapping will generate a `rule` and all the required labels. `patterns` are pre-defined in `rules.yml` and could not be generated automatically. If a mapping is using a `pattern` undefined, the `pattern` will be ignored.
+
+    - If a mapping key has postfix `-preview`, no `if-protected-xxx` clause will be added
+    - else if a mapping key has postfix `-production`, an `if-protected-no_label` clause will be added
+    - else, an `if-protected` clause will be added
+
+## Graph
+
+All `label` nodes are in green, `pattern` nodes are in cyan, `rule` nodes are in blue
+
+### Requirements
+
+There are a few extra dependencies while generating the dependency tree graph, please refer to [pygraphviz](https://github.com/pygraphviz/pygraphviz/blob/master/INSTALL.txt) documentation to install both `graphviz` and `pygraphviz`
+
+### CLI usage
+
+`python generate_rules.py --graph OUTPUT_PATH`

.gitlab/ci/dependencies/dependencies.yml

@@ -0,0 +1,162 @@
+.all_targets: &all_targets
+  - esp32
+  - esp32s2
+  - esp32s3
+  - esp32c3
+
+.target_test: &target_test
+  - example_test
+  - custom_test
+  - unit_test
+  - component_ut
+
+##############
+# Build Jobs #
+##############
+"build":
+  labels:
+    - build
+  patterns:
+    - build_components
+    - build_system
+  included_in:
+    - build:target_test
+
+# -------------------
+# Specific Build Jobs
+# -------------------
+"build:docker":
+  labels:
+    - build
+    - docker
+  patterns:
+    - docker
+
+"build:windows":
+  labels:
+    - build
+    - windows
+  patterns:
+    - build_system
+    - windows
+
+"build:macos":
+  labels:
+    - build
+    - macos
+    - macos_test  # for backward compatibility
+  patterns:
+    - build_system
+    - macos
+
+# ---------------
+# Build Test Jobs
+# ---------------
+"build:{0}-{1}":
+  matrix:
+    - *target_test
+    - *all_targets
+  labels:
+    - build
+  patterns:
+    - build_components
+    - build_system
+
+build:integration_test:
+  labels:
+    - build
+  patterns:
+    - build_components
+    - build_system
+
+####################
+# Target Test Jobs #
+####################
+"test:{0}-{1}":
+  matrix:
+    - *target_test
+    - *all_targets
+  labels: # For each rule, use labels <test_type> and <test_type>-<target>
+    - "{0}"
+    - "{0}_{1}"
+  patterns: # For each rule, use patterns <test_type> and build-<test_type>
+    - "{0}"
+    - "build-{0}"
+  included_in: # Parent rules
+    - "build:{0}-{1}"
+    - build:target_test
+    - test:target_test
+    - test:any_test
+
+# -------------
+# Special Cases
+# -------------
+"test:component_ut-{0}": # component_ut will trigger by unit_test as well, since now we have 2 kinds of UT
+  matrix:
+    - *all_targets
+  labels:
+    - component_ut
+    - "component_ut_{0}"
+    - unit_test
+    - "unit_test_{0}"
+  patterns:
+    - component_ut
+    - "build-component_ut-{0}"
+  included_in:
+    - "build:component_ut-{0}"
+    - build:target_test
+    - test:target_test
+    - test:any_test
+
+"test:integration_test":
+  labels:
+    - "integration_test"
+  patterns:
+    - "integration_test"
+  included_in:
+    - "build:integration_test"
+    - build:target_test
+    - test:target_test
+    - test:any_test
+
+"test:host_test":
+  labels:
+    - host_test
+  patterns:
+    - host_test
+  included_in:
+    - test:any_test
+
+"test:submodule":
+  labels:
+    - submodule
+  patterns:
+    - submodule
+
+#################################
+# Triggered Only By Labels Jobs #
+#################################
+"labels:iperf_stress_test": # example_test
+  labels:
+    - iperf_stress_test
+  included_in:
+    - build:example_test-esp32
+    - build:target_test
+    - test:any_test
+
+"labels:weekend_test": # custom test
+  labels:
+    - weekend_test
+  included_in:
+    - build:custom_test-esp32
+    - build:target_test
+    - test:any_test
+
+"labels:nvs_coverage": # host_test
+  labels:
+    - nvs_coverage
+
+"labels:fuzzer_test-weekend_test": # host test
+  labels:
+    - fuzzer_test
+    - weekend_test

.gitlab/ci/dependencies/generate_rules.py

@@ -0,0 +1,305 @@
+#!/usr/bin/env python
+#
+# Copyright 2021 Espressif Systems (Shanghai) CO LTD
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import inspect
+import os
+import sys
+from collections import defaultdict
+from itertools import product
+
+import yaml
+
+try:
+    import pygraphviz as pgv
+except ImportError:  # used when pre-commit, skip generating image
+    pass
+
+try:
+    from typing import Union
+except ImportError:  # used for type hint
+    pass
+
+IDF_PATH = os.path.abspath(os.getenv('IDF_PATH', os.path.join(os.path.dirname(__file__), '..', '..', '..')))
+
+
+def _list(str_or_list):  # type: (Union[str, list]) -> list
+    if isinstance(str_or_list, str):
+        return [str_or_list]
+    elif isinstance(str_or_list, list):
+        return str_or_list
+    else:
+        raise ValueError('Wrong type: {}. Only supports str or list.'.format(type(str_or_list)))
+
+
+def _format_nested_dict(_dict, f_tuple):  # type: (dict[str, dict], tuple[str, ...]) -> dict[str, dict]
+    res = {}
+    for k, v in _dict.items():
+        k = k.split('__')[0]
+        if isinstance(v, dict):
+            v = _format_nested_dict(v, f_tuple)
+        elif isinstance(v, list):
+            v = _format_nested_list(v, f_tuple)
+        elif isinstance(v, str):
+            v = v.format(*f_tuple)
+        res[k.format(*f_tuple)] = v
+    return res
+
+
+def _format_nested_list(_list, f_tuple):  # type: (list[str], tuple[str, ...]) -> list[str]
+    res = []
+    for item in _list:
+        if isinstance(item, list):
+            item = _format_nested_list(item, f_tuple)
+        elif isinstance(item, dict):
+            item = _format_nested_dict(item, f_tuple)
+        elif isinstance(item, str):
+            item = item.format(*f_tuple)
+        res.append(item)
+    return res
+
+
+class RulesWriter:
+    AUTO_GENERATE_MARKER = inspect.cleandoc(r'''
+    ##################
+    # Auto Generated #
+    ##################
+    ''')
+
+    LABEL_TEMPLATE = inspect.cleandoc(r'''
+    .if-label-{0}: &if-label-{0}
+      if: '$BOT_LABEL_{1} || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*{0}(?:,[^,\n\r]+)*$/i'
+    ''')
+
+    RULE_PROTECTED = '    - <<: *if-protected'
+    RULE_PROTECTED_NO_LABEL = '    - <<: *if-protected-no_label'
+    RULE_BUILD_ONLY = '    - <<: *if-label-build-only\n' \
+                      '      when: never'
+    RULE_LABEL_TEMPLATE = '    - <<: *if-label-{0}'
+    RULE_PATTERN_TEMPLATE = '    - <<: *if-dev-push\n' \
+                            '      changes: *patterns-{0}'
+    RULES_TEMPLATE = inspect.cleandoc(r"""
+    .rules:{0}:
+      rules:
+    {1}
+    """)
+
+    KEYWORDS = ['labels', 'patterns']
+
+    def __init__(self, rules_yml, depend_yml):  # type: (str, str) -> None
+        self.rules_yml = rules_yml
+        self.rules_cfg = yaml.load(open(rules_yml), Loader=yaml.FullLoader)
+
+        self.full_cfg = yaml.load(open(depend_yml), Loader=yaml.FullLoader)
+        self.cfg = {k: v for k, v in self.full_cfg.items() if not k.startswith('.')}
+        self.cfg = self.expand_matrices()
+        self.rules = self.expand_rules()
+
+        self.graph = None
+
+    def expand_matrices(self):  # type: () -> dict
+        """
+        Expand the matrix into different rules
+        """
+        res = {}
+        for k, v in self.cfg.items():
+            res.update(self._expand_matrix(k, v))
+
+        for k, v in self.cfg.items():
+            if not v:
+                continue
+            deploy = v.get('deploy')
+            if deploy:
+                for item in _list(deploy):
+                    res['{}-{}'.format(k, item)] = v
+        return res
+
+    @staticmethod
+    def _expand_matrix(name, cfg):  # type: (str, dict) -> dict
+        """
+        Expand matrix into multi keys
+        :param cfg: single rule dict
+        :return:
+        """
+        default = {name: cfg}
+        if not cfg:
+            return default
+        matrices = cfg.pop('matrix', None)
+        if not matrices:
+            return default
+
+        res = {}
+        for comb in product(*_list(matrices)):
+            res.update(_format_nested_dict(default, comb))
+        return res
+
+    def expand_rules(self):  # type: () -> dict[str, dict[str, list]]
+        res = defaultdict(lambda: defaultdict(set))  # type: dict[str, dict[str, set]]
+        for k, v in self.cfg.items():
+            if not v:
+                continue
+            for vk, vv in v.items():
+                if vk in self.KEYWORDS:
+                    res[k][vk] = set(_list(vv))
+                else:
+                    res[k][vk] = vv
+            for key in self.KEYWORDS:  # provide empty set for missing field
+                if key not in res[k]:
+                    res[k][key] = set()
+
+        for k, v in self.cfg.items():
+            if not v:
+                continue
+            if 'included_in' in v:
+                for item in _list(v['included_in']):
+                    if 'labels' in v:
+                        res[item]['labels'].update(_list(v['labels']))
+                    if 'patterns' in v:
+                        for _pat in _list(v['patterns']):
+                            # Patterns must be pre-defined
+                            if '.patterns-{}'.format(_pat) not in self.rules_cfg:
+                                print('WARNING: pattern {} not exists'.format(_pat))
+                                continue
+                            res[item]['patterns'].add(_pat)
+
+        sorted_res = defaultdict(lambda: defaultdict(list))  # type: dict[str, dict[str, list]]
+        for k, v in res.items():
+            for vk, vv in v.items():
+                sorted_res[k][vk] = sorted(vv)
+        return sorted_res
+
+    def new_labels_str(self):  # type: () -> str
+        _labels = set([])
+        for k, v in self.cfg.items():
+            if not v:
+                continue  # shouldn't be possible
+            labels = v.get('labels')
+            if not labels:
+                continue
+            _labels.update(_list(labels))
+        labels = sorted(_labels)
+
+        res = ''
+        res += '\n\n'.join([self._format_label(_label) for _label in labels])
+        return res
+
+    @classmethod
+    def _format_label(cls, label):  # type: (str) -> str
+        return cls.LABEL_TEMPLATE.format(label, cls.bot_label_str(label))
+
+    @staticmethod
+    def bot_label_str(label):  # type: (str) -> str
+        return label.upper().replace('-', '_')
+
+    def new_rules_str(self):  # type: () -> str
+        res = []
+        for k, v in sorted(self.rules.items()):
+            res.append(self.RULES_TEMPLATE.format(k, self._format_rule(k, v)))
+        return '\n\n'.join(res)
+
+    def _format_rule(self, name, cfg):  # type: (str, dict) -> str
+        _rules = []
+        if name.endswith('-production'):
+            _rules.append(self.RULE_PROTECTED_NO_LABEL)
+        else:
+            if not (name.endswith('-preview') or name.startswith('labels:')):
+                _rules.append(self.RULE_PROTECTED)
+            # Special case for esp32c3 example_test, for now it only run with label
+            if name.startswith('test:') or name == 'labels:example_test-esp32c3':
+                _rules.append(self.RULE_BUILD_ONLY)
+            for label in cfg['labels']:
+                _rules.append(self.RULE_LABEL_TEMPLATE.format(label))
+            for pattern in cfg['patterns']:
+                if '.patterns-{}'.format(pattern) in self.rules_cfg:
+                    _rules.append(self.RULE_PATTERN_TEMPLATE.format(pattern))
+                else:
+                    print('WARNING: pattern {} not exists'.format(pattern))
+        return '\n'.join(_rules)
+
+    def update_rules_yml(self):  # type: () -> bool
+        with open(self.rules_yml) as fr:
+            file_str = fr.read()
+
+        auto_generate_str = '\n{}\n\n{}\n'.format(self.new_labels_str(), self.new_rules_str())
+        rest, marker, old = file_str.partition(self.AUTO_GENERATE_MARKER)
+        if old == auto_generate_str:
+            return False
+        else:
+            print(self.rules_yml, 'has been modified. Please check')
+            with open(self.rules_yml, 'w') as fw:
+                fw.write(rest + marker + auto_generate_str)
+            return True
+
+
+LABEL_COLOR = 'green'
+PATTERN_COLOR = 'cyan'
+RULE_COLOR = 'blue'
+
+
+def build_graph(rules_dict):  # type: (dict[str, dict[str, list]]) -> pgv.AGraph
+    graph = pgv.AGraph(directed=True, rankdir='LR', concentrate=True)
+
+    for k, v in rules_dict.items():
+        if not v:
+            continue
+        included_in = v.get('included_in')
+        if included_in:
+            for item in _list(included_in):
+                graph.add_node(k, color=RULE_COLOR)
+                graph.add_node(item, color=RULE_COLOR)
+                graph.add_edge(k, item, color=RULE_COLOR)
+        labels = v.get('labels')
+        if labels:
+            for _label in labels:
+                graph.add_node('label:{}'.format(_label), color=LABEL_COLOR)
+                graph.add_edge('label:{}'.format(_label), k, color=LABEL_COLOR)
+        patterns = v.get('patterns')
+        if patterns:
+            for _pat in patterns:
+                graph.add_node('pattern:{}'.format(_pat), color=PATTERN_COLOR)
+                graph.add_edge('pattern:{}'.format(_pat), k, color=PATTERN_COLOR)
+
+    return graph
+
+
+def output_graph(graph, output_path='output.png'):  # type: (pgv.AGraph, str) -> None
+    graph.layout('dot')
+    if output_path.endswith('.png'):
+        img_path = output_path
+    else:
+        img_path = os.path.join(output_path, 'output.png')
+    graph.draw(img_path)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument('rules_yml', nargs='?', default=os.path.join(IDF_PATH, '.gitlab', 'ci', 'rules.yml'),
+                        help='rules.yml file path')
+    parser.add_argument('dependencies_yml', nargs='?', default=os.path.join(IDF_PATH, '.gitlab', 'ci', 'dependencies',
+                                                                            'dependencies.yml'),
+                        help='dependencies.yml file path')
+    parser.add_argument('--graph',
+                        help='Specify PNG image output path. Use this argument to generate dependency graph')
+    args = parser.parse_args()
+
+    writer = RulesWriter(args.rules_yml, args.dependencies_yml)
+    file_modified = writer.update_rules_yml()
+
+    if args.graph:
+        dep_tree_graph = build_graph(writer.rules)
+        output_graph(dep_tree_graph)
+
+    sys.exit(file_modified)

.gitlab/ci/deploy.yml

@@ -0,0 +1,75 @@
+.deploy_job_template:
+  extends: .before_script_no_sync_submodule
+  stage: deploy
+  image: $ESP_ENV_IMAGE
+  tags:
+    - deploy
+
+push_to_github:
+  extends:
+    - .deploy_job_template
+    - .before_script_minimal
+    - .rules:protected-no_label
+  dependencies: []
+  script:
+    - add_github_ssh_keys
+    - git remote remove github &>/dev/null || true
+    - git remote add github git@github.com:espressif/esp-idf.git
+    - tools/ci/push_to_github.sh
+
+deploy_test_result:
+  extends:
+    - .deploy_job_template
+    - .before_script_minimal
+    - .rules:ref:master-schedule-always
+  image: $CI_DOCKER_REGISTRY/bot-env
+  tags:
+    - deploy_test
+  artifacts:
+    when: always
+    paths:
+      - ${CI_PROJECT_DIR}/test-management/*.log
+      # save all test logs as artifacts, make it easier to track errors
+      - ${CI_PROJECT_DIR}/TEST_LOGS
+    expire_in: 1 mos
+  variables:
+    UNIT_TEST_CASE_FILE: "${CI_PROJECT_DIR}/components/idf_test/unit_test/TestCaseAll.yml"
+    BOT_ACCOUNT_CONFIG_FILE: "${CI_PROJECT_DIR}/test-management/Config/Account.local.yml"
+    TEST_FW_PATH: "$CI_PROJECT_DIR/tools/tiny-test-fw"
+    AUTO_TEST_SCRIPT_PATH: "${CI_PROJECT_DIR}/auto_test_script"
+  script:
+    - add_gitlab_ssh_keys
+    - export GIT_SHA=$(echo ${PIPELINE_COMMIT_SHA} | cut -c 1-8)
+    - export REV_COUNT=$(git rev-list --count ${PIPELINE_COMMIT_SHA} --)
+    - export SUMMARY="IDF CI test result for $GIT_SHA (r${REV_COUNT})"
+    # artifacts of job update_test_cases creates test-management folder
+    # we need to remove it so we can clone test-management folder again
+    - rm -rf test-management
+    - retry_failed git clone $TEST_MANAGEMENT_REPO
+    - python3 $CHECKOUT_REF_SCRIPT test-management test-management
+    - cd test-management
+    - echo $BOT_JIRA_ACCOUNT > ${BOT_ACCOUNT_CONFIG_FILE}
+    # update test results
+    - python3 ImportTestResult.py -r "$GIT_SHA (r${REV_COUNT})" -j $JIRA_TEST_MANAGEMENT_PROJECT -s "$SUMMARY" -l CI -p ${CI_PROJECT_DIR}/TEST_LOGS --pipeline_url ${CI_PIPELINE_URL}
+
+check_submodule_sync:
+  extends:
+    - .deploy_job_template
+    - .rules:test:submodule
+  tags:
+    - github_sync
+  retry: 2
+  variables:
+    GIT_STRATEGY: clone
+    SUBMODULES_TO_FETCH: "none"
+    PUBLIC_IDF_URL: "https://github.com/espressif/esp-idf.git"
+  dependencies: []
+  script:
+    - git submodule deinit --force .
+    # setting the default remote URL to the public one, to resolve relative location URLs
+    - git config remote.origin.url ${PUBLIC_IDF_URL}
+    # check if all submodules are correctly synced to public repository
+    - git submodule init
+    - git config --get-regexp '^submodule\..*\.url$' || true
+    - git submodule update --recursive
+    - echo "IDF was cloned from ${PUBLIC_IDF_URL} completely"

.gitlab/ci/docs.yml

@@ -0,0 +1,230 @@
+.patterns-docs: &patterns-docs
+  - ".gitlab/ci/docs.yml"
+  - "docs/**/*"
+  - "components/**/*.h"
+  - "components/**/Kconfig*"
+  - "components/**/CMakeList.txt"
+  - "components/**/sdkconfig*"
+  - "tools/kconfig_new/**/*"
+  - "CONTRIBUTING.rst"
+
+.patterns-docs-preview: &patterns-docs-preview
+  - "docs/**/*"
+
+.if-protected: &if-protected
+  if: '($CI_COMMIT_REF_NAME == "master" || $CI_COMMIT_BRANCH =~ /^release\/v/ || $CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/)'
+
+.if-protected-no_label: &if-protected-no_label
+  if: '($CI_COMMIT_REF_NAME == "master" || $CI_COMMIT_BRANCH =~ /^release\/v/ || $CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/) && $BOT_TRIGGER_WITH_LABEL == null'
+
+.if-label-build_docs: &if-label-build_docs
+  if: '$BOT_LABEL_BUILD_DOCS || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*build_docs(?:,[^,\n\r]+)*$/i'
+
+.if-label-docs: &if-label-docs
+  if: '$BOT_LABEL_DOCS || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*docs(?:,[^,\n\r]+)*$/i'
+
+.if-label-docs_full: &if-label-docs_full
+  if: '$BOT_LABEL_DOCS_FULL || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*docs_full(?:,[^,\n\r]+)*$/i'
+
+.if-dev-push: &if-dev-push
+  if: '$CI_COMMIT_REF_NAME != "master" && $CI_COMMIT_BRANCH !~ /^release\/v/ && $CI_COMMIT_TAG !~ /^v\d+\.\d+(\.\d+)?($|-)/ && ($CI_PIPELINE_SOURCE == "push" || $CI_PIPELINE_SOURCE == "merge_request_event")'
+
+.doc-rules:build:docs:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build_docs
+    - <<: *if-label-docs
+    - <<: *if-label-docs_full
+    - <<: *if-dev-push
+      changes: *patterns-docs
+
+# stage: pre_check
+check_readme_links:
+  extends:
+    - .pre_check_job_template
+  tags: ["build", "amd64", "internet"]
+  allow_failure: true
+  script:
+    - python ${IDF_PATH}/tools/ci/check_readme_links.py
+
+check_docs_lang_sync:
+  extends:
+    - .pre_check_job_template
+    - .doc-rules:build:docs
+  script:
+    - cd docs
+    - ./check_lang_folder_sync.sh
+
+.build_docs_template:
+  image: $ESP_IDF_DOC_ENV_IMAGE
+  variables:
+    PYTHON_VER: 3.6.13
+  tags:
+    - build_docs
+  dependencies: []
+  script:
+    - cd docs
+    - pip install -r requirements.txt
+    - build-docs -t $DOCTGT -bs $DOC_BUILDERS -l $DOCLANG build
+  parallel:
+    matrix:
+      - DOCLANG: ["en", "zh_CN"]
+        DOCTGT: ["esp32", "esp32s2", "esp32s3", "esp32c3"]
+
+check_docs_gh_links:
+  image: $ESP_IDF_DOC_ENV_IMAGE
+  variables:
+    PYTHON_VER: 3.6.13
+  extends:
+    - .pre_check_job_template
+    - .doc-rules:build:docs
+  script:
+    - cd docs
+    - pip install -r requirements.txt
+    - build-docs gh-linkcheck
+
+# stage: build_doc
+# Add this stage to let the build_docs job run in parallel with build
+.build_docs_build_stage_template:
+  extends:
+    - .build_docs_template
+  stage: build_doc
+  needs:
+    - job: check_docs_lang_sync
+      artifacts: false
+    - job: check_docs_gh_links
+      artifacts: false
+
+# Doc jobs have a lot of special cases, we specify rules here directly instead
+# in dependencies.yml to simplify things
+build_docs_html_full:
+  extends:
+    - .build_docs_build_stage_template
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-docs_full
+  artifacts:
+    when: always
+    paths:
+      - docs/_build/*/*/*.txt
+      - docs/_build/*/*/html/*
+    expire_in: 4 days
+  variables:
+    DOC_BUILDERS: "html"
+
+build_docs_html_fast:
+  extends:
+    - .build_docs_build_stage_template
+  rules:
+    - <<: *if-label-docs_full
+      when: never
+    - <<: *if-label-build_docs
+    - <<: *if-label-docs
+    - <<: *if-dev-push
+      changes: *patterns-docs
+  artifacts:
+    when: always
+    paths:
+      - docs/_build/*/*/*.txt
+      - docs/_build/*/*/html/*
+    expire_in: 4 days
+  variables:
+    DOC_BUILDERS: "html"
+    DOCS_FAST_BUILD: "yes"
+
+build_docs_pdf:
+  extends:
+    - .build_docs_build_stage_template
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-docs_full
+  artifacts:
+    when: always
+    paths:
+      - docs/_build/*/*/latex/*
+    expire_in: 4 days
+  variables:
+    DOC_BUILDERS: "latex"
+
+.deploy_docs_template:
+  extends:
+    - .before_script_no_sync_submodule
+  image: $ESP_IDF_DOC_ENV_IMAGE
+  variables:
+    PYTHON_VER: 3.6.13
+  stage: test_deploy
+  tags:
+    - deploy
+    - shiny
+  variables:
+    DOCS_BUILD_DIR: "${IDF_PATH}/docs/_build/"
+    PYTHONUNBUFFERED: 1
+  dependencies: []
+  script:
+    - add_doc_server_ssh_keys $DOCS_DEPLOY_PRIVATEKEY $DOCS_DEPLOY_SERVER $DOCS_DEPLOY_SERVER_USER
+    - export GIT_VER=$(git describe --always ${PIPELINE_COMMIT_SHA} --)
+    - pip install -r docs/requirements.txt
+    - deploy-docs
+
+# stage: test_deploy
+deploy_docs_preview:
+  extends:
+    - .deploy_docs_template
+  rules:
+    - <<: *if-label-build_docs
+    - <<: *if-label-docs
+    - <<: *if-dev-push
+      changes: *patterns-docs-preview
+  dependencies:
+    - build_docs_html_fast
+    - build_docs_html_full
+    - build_docs_pdf
+  variables:
+    TYPE: "preview"
+    # older branches use DOCS_DEPLOY_KEY, DOCS_SERVER, DOCS_SERVER_USER, DOCS_PATH for preview server so we keep these names for 'preview'
+    DOCS_DEPLOY_PRIVATEKEY: "$DOCS_DEPLOY_KEY"
+    DOCS_DEPLOY_SERVER: "$DOCS_SERVER"
+    DOCS_DEPLOY_SERVER_USER: "$DOCS_SERVER_USER"
+    DOCS_DEPLOY_PATH: "$DOCS_PATH"
+    DOCS_DEPLOY_URL_BASE: "https://$DOCS_PREVIEW_SERVER_URL/docs/esp-idf"
+
+# stage: post_deploy
+deploy_docs_production:
+  # The DOCS_PROD_* variables used by this job are "Protected" so these branches must all be marked "Protected" in Gitlab settings
+  extends:
+    - .deploy_docs_template
+  rules:
+    - <<: *if-protected-no_label
+  stage: post_deploy
+  dependencies:  # set dependencies to null to avoid missing artifacts issue
+  needs: # ensure runs after push_to_github succeeded
+    - build_docs_html_full
+    - build_docs_pdf
+    - job: push_to_github
+      artifacts: false
+  variables:
+    TYPE: "preview"
+    DOCS_DEPLOY_PRIVATEKEY: "$DOCS_PROD_DEPLOY_KEY"
+    DOCS_DEPLOY_SERVER: "$DOCS_PROD_SERVER"
+    DOCS_DEPLOY_SERVER_USER: "$DOCS_PROD_SERVER_USER"
+    DOCS_DEPLOY_PATH: "$DOCS_PROD_PATH"
+    DOCS_DEPLOY_URL_BASE: "https://docs.espressif.com/projects/esp-idf"
+
+check_doc_links:
+  extends:
+    - .build_docs_template
+    - .rules:protected
+  stage: post_deploy
+  tags: ["build", "amd64", "internet"]
+  artifacts:
+    when: always
+    paths:
+      - docs/_build/*/*/*.txt
+      - docs/_build/*/*/linkcheck/*.txt
+    expire_in: 1 week
+  allow_failure: true
+  script:
+    - cd docs
+    - pip install -r requirements.txt
+    # At the moment this check will always fail due to multiple known limitations, ignore result
+    - build-docs -t $DOCTGT -l $DOCLANG linkcheck || { echo "THERE ARE ISSUES DUE TO KNOWN LIMITATIONS, PLEASE FIX THEM. Nowadays we're ignored them to pass pipeline."; true; }

.gitlab/ci/host-test.yml

@@ -0,0 +1,373 @@
+.host_test_template:
+  extends: .rules:test:host_test
+  stage: host_test
+  image: $ESP_ENV_IMAGE
+  variables:
+    PYTHON_VER: 3.6.13
+  tags:
+    - host_test
+  dependencies: []
+  needs: []  # run host_test jobs immediately
+
+test_nvs_on_host:
+  extends: .host_test_template
+  script:
+    - cd components/nvs_flash/test_nvs_host
+    - make test
+
+test_nvs_coverage:
+  extends:
+    - .host_test_template
+    - .rules:labels:nvs_coverage
+  artifacts:
+    paths:
+      - components/nvs_flash/test_nvs_host/coverage_report
+    expire_in: 1 week
+  script:
+    - cd components/nvs_flash/test_nvs_host
+    - make coverage_report
+  # the 'long' host tests take approx 11 hours on our current runners. Adding some margin here for possible CPU contention
+  timeout: 18 hours
+
+test_partition_table_on_host:
+  extends: .host_test_template
+  tags:
+    - build
+  script:
+    - cd components/partition_table/test_gen_esp32part_host
+    - ./gen_esp32part_tests.py
+
+test_wl_on_host:
+  extends: .host_test_template
+  artifacts:
+    paths:
+      - components/wear_levelling/test_wl_host/coverage_report.zip
+    expire_in: 1 week
+  script:
+    - cd components/wear_levelling/test_wl_host
+    - make test
+
+test_fatfs_on_host:
+  extends: .host_test_template
+  script:
+    - cd components/fatfs/test_fatfs_host/
+    - make test
+
+test_ldgen_on_host:
+  extends: .host_test_template
+  script:
+    - cd tools/ldgen/test
+    - ./test_fragments.py
+    - ./test_generation.py
+    - ./test_entity.py
+    - ./test_output_commands.py
+  variables:
+    LC_ALL: C.UTF-8
+
+.host_fuzzer_test_template:
+  extends:
+    - .host_test_template
+    - .rules:labels:fuzzer_test-weekend_test
+  image: $AFL_FUZZER_TEST_IMAGE
+  artifacts:
+    when: always
+    paths:
+      - ${FUZZER_TEST_DIR}/out/crashes
+      - ${FUZZER_TEST_DIR}/fuzz_output.log
+    expire_in: 1 week
+  script:
+    - export AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES=1 && export AFL_SKIP_CPUFREQ=1
+    - cd ${FUZZER_TEST_DIR}
+    # run AFL fuzzer for one hour
+    - ( ( make ${FUZZER_PARAMS} fuzz | tee fuzz_output.log | grep -v '\(Fuzzing test case\|Entering queue cycle\)' ) || pkill sleep ) &
+    - ( sleep 3600 || mkdir -p out/crashes/env_failed ) && pkill afl-fuz
+    # check no crashes found
+    - test -z "$(ls out/crashes/)" || exit 1
+
+test_mdns_fuzzer_on_host:
+  extends: .host_fuzzer_test_template
+  variables:
+    FUZZER_TEST_DIR: components/mdns/test_afl_fuzz_host
+
+test_lwip_dns_fuzzer_on_host:
+  extends: .host_fuzzer_test_template
+  variables:
+    FUZZER_TEST_DIR: components/lwip/test_afl_host
+    FUZZER_PARAMS: MODE=dns
+
+test_lwip_dhcp_fuzzer_on_host:
+  extends: .host_fuzzer_test_template
+  variables:
+    FUZZER_TEST_DIR: components/lwip/test_afl_host
+    FUZZER_PARAMS: MODE=dhcp_client
+
+test_lwip_dhcps_fuzzer_on_host:
+  extends: .host_fuzzer_test_template
+  variables:
+    FUZZER_TEST_DIR: components/lwip/test_afl_host
+    FUZZER_PARAMS: MODE=dhcp_server
+
+test_spiffs_on_host:
+  extends: .host_test_template
+  script:
+    - cd components/spiffs/test_spiffs_host/
+    - make test
+    - cd ../test_spiffsgen
+    - ./test_spiffsgen.py
+
+test_multi_heap_on_host:
+  extends: .host_test_template
+  script:
+    - cd components/heap/test_multi_heap_host
+    - ./test_all_configs.sh
+
+test_certificate_bundle_on_host:
+  extends: .host_test_template
+  tags:
+    - build
+  script:
+    - cd components/mbedtls/esp_crt_bundle/test_gen_crt_bundle/
+    - ./test_gen_crt_bundle.py
+
+test_confserver:
+  extends: .host_test_template
+  script:
+    - cd tools/kconfig_new/test/confserver
+    - ./test_confserver.py
+
+test_gen_kconfig_doc:
+  extends: .host_test_template
+  script:
+    - cd tools/kconfig_new/test/gen_kconfig_doc/
+    - ./test_target_visibility.py
+    - ./test_kconfig_out.py
+
+test_confgen:
+  extends: .host_test_template
+  script:
+    - cd tools/kconfig_new/test/confgen/
+    - ./test_confgen.py
+
+test_idf_monitor:
+  extends: .host_test_template
+  artifacts:
+    # save artifacts always in order to access results which were retried without consequent failure
+    when: always
+    paths:
+      - tools/test_idf_monitor/outputs/*
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/tools/test_idf_monitor
+    - ./run_test_idf_monitor.py
+
+test_idf_size:
+  extends: .host_test_template
+  artifacts:
+    when: on_failure
+    paths:
+      - tools/test_idf_size/output
+      - tools/test_idf_size/.coverage
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/tools/test_idf_size
+    - ./test.sh
+
+test_idf_py:
+  extends: .host_test_template
+  variables:
+    LC_ALL: C.UTF-8
+  script:
+    - cd ${IDF_PATH}/tools/test_idf_py
+    - ./test_idf_py.py
+
+test_idf_tools:
+  extends: .host_test_template
+  artifacts:
+    when: on_failure
+    paths:
+      - tools/tools.new.json
+    expire_in: 1 week
+  script:
+    # Remove Xtensa and ULP toolchains from the PATH, tests will expect a clean environment
+    - export PATH=$(p=$(echo $PATH | tr ":" "\n" | grep -v "/root/.espressif/tools\|/opt/espressif" | tr "\n" ":"); echo ${p%:})
+    - cd ${IDF_PATH}/tools/test_idf_tools
+    - ./test_idf_tools.py
+    # Test for create virtualenv. It must be invoked from Python, not from virtualenv.
+    - cd ${IDF_PATH}/tools
+    - python3 ./idf_tools.py install-python-env
+
+.test_efuse_table_on_host_template:
+  extends: .host_test_template
+  variables:
+    IDF_TARGET: "esp32"
+  artifacts:
+    when: on_failure
+    paths:
+      - components/efuse/${IDF_TARGET}/esp_efuse_table.c
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/components/efuse/
+    - ./efuse_table_gen.py -t "${IDF_TARGET}" ${IDF_PATH}/components/efuse/${IDF_TARGET}/esp_efuse_table.csv
+    - git diff --exit-code -- ${IDF_TARGET}/esp_efuse_table.c || { echo 'Differences found for ${IDF_TARGET} target. Please run make efuse_common_table or idf.py efuse-common-table and commit the changes.'; exit 1; }
+    - cd ${IDF_PATH}/components/efuse/test_efuse_host
+    - ./efuse_tests.py
+
+test_efuse_table_on_host_esp32:
+  extends: .test_efuse_table_on_host_template
+
+test_efuse_table_on_host_esp32s2:
+  extends: .test_efuse_table_on_host_template
+  variables:
+    IDF_TARGET: esp32s2
+
+test_efuse_table_on_host_esp32s3:
+  extends: .test_efuse_table_on_host_template
+  variables:
+    IDF_TARGET: esp32s3
+
+test_efuse_table_on_host_esp32c3:
+  extends: .test_efuse_table_on_host_template
+  variables:
+    IDF_TARGET: esp32c3
+
+test_efuse_table_on_host_esp32h2:
+  extends: .test_efuse_table_on_host_template
+  variables:
+    IDF_TARGET: esp32h2
+
+test_espcoredump:
+  extends: .host_test_template
+  artifacts:
+    when: always
+    paths:
+      - components/espcoredump/test/**/.coverage
+      - components/espcoredump/test/**/output
+    expire_in: 1 week
+  variables:
+    IDF_COREDUMP_ELF_REPO: "https://gitlab-ci-token:${BOT_TOKEN}@${CI_SERVER_HOST}:${CI_SERVER_PORT}/idf/idf-coredump-elf.git"
+    IDF_COREDUMP_ELF_TAG: idf-20210915
+    # install CMake version specified in tools.json
+    SETUP_TOOLS_LIST: "all"
+  script:
+    - retry_failed git clone ${IDF_COREDUMP_ELF_REPO} -b $IDF_COREDUMP_ELF_TAG
+    - cd ${IDF_PATH}/components/espcoredump/test/
+    - ./test_espcoredump.sh ${CI_PROJECT_DIR}/idf-coredump-elf
+
+test_logtrace_proc:
+  extends: .host_test_template
+  artifacts:
+    when: on_failure
+    paths:
+      - tools/esp_app_trace/test/logtrace/output
+      - tools/esp_app_trace/test/logtrace/.coverage
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/tools/esp_app_trace/test/logtrace
+    - ./test.sh
+
+test_sysviewtrace_proc:
+  extends: .host_test_template
+  artifacts:
+    when: on_failure
+    paths:
+      - tools/esp_app_trace/test/sysview/output
+      - tools/esp_app_trace/test/sysview/.coverage
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/tools/esp_app_trace/test/sysview
+    - ./test.sh
+
+test_mkdfu:
+  extends: .host_test_template
+  variables:
+    LC_ALL: C.UTF-8
+  script:
+    - cd ${IDF_PATH}/tools/test_mkdfu
+    - ./test_mkdfu.py
+
+test_mkuf2:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/tools/test_mkuf2
+    - ./test_mkuf2.py
+
+test_autocomplete:
+  extends: .host_test_template
+  image: $CI_DOCKER_REGISTRY/linux-shells:1
+  artifacts:
+    when: on_failure
+    paths:
+      - ${IDF_PATH}/*.out
+    expire_in: 1 week
+  script:
+    - ${IDF_PATH}/tools/ci/test_autocomplete.py
+
+test_detect_python:
+  extends: .host_test_template
+  image: $CI_DOCKER_REGISTRY/linux-shells:1
+  script:
+    - cd ${IDF_PATH}
+    - shellcheck -s sh tools/detect_python.sh
+    - shellcheck -s bash tools/detect_python.sh
+    - shellcheck -s dash tools/detect_python.sh
+    - "bash -c '. tools/detect_python.sh && echo Our Python: ${ESP_PYTHON?Python is not set}'"
+    - "dash -c '. tools/detect_python.sh && echo Our Python: ${ESP_PYTHON?Python is not set}'"
+    - "zsh -c '. tools/detect_python.sh && echo Our Python: ${ESP_PYTHON?Python is not set}'"
+    - "fish -c 'source tools/detect_python.fish && echo Our Python: $ESP_PYTHON'"
+
+test_nvs_page:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/components/nvs_flash/host_test/nvs_page_test
+    - idf.py build
+    - build/test_nvs_page_host.elf
+
+test_log:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/components/log/host_test/log_test
+    - idf.py build
+    - build/test_log_host.elf
+
+test_esp_event:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/components/esp_event/host_test/esp_event_unit_test
+    - idf.py build
+    - build/test_esp_event_host.elf
+
+test_esp_timer_cxx:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/examples/cxx/experimental/experimental_cpp_component/host_test/esp_timer
+    - idf.py build
+    - build/test_esp_timer_cxx_host.elf
+
+test_eh_frame_parser:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/components/esp_system/test_eh_frame_parser
+    - make
+    - ./eh_frame_test
+
+test_rom_on_linux_works:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/components/esp_rom/host_test/rom_test
+    - idf.py build
+    - build/test_rom_host.elf
+
+test_cxx_gpio:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/examples/cxx/experimental/experimental_cpp_component/host_test/gpio
+    - idf.py build
+    - build/test_gpio_cxx_host.elf
+
+test_linux_example:
+  extends: .host_test_template
+  script:
+    - cd ${IDF_PATH}/examples/build_system/cmake/linux_host_app
+    - idf.py build
+    - timeout 5 ./build/linux_host_app.elf >test.log || true
+    - grep "Restarting" test.log

.gitlab/ci/pre_check.yml

@@ -0,0 +1,199 @@
+.pre_check_base_template:
+  stage: pre_check
+  image: $ESP_ENV_IMAGE
+  tags:
+    - host_test
+  dependencies: []
+
+.pre_check_job_template:
+  extends:
+    - .pre_check_base_template
+    - .before_script_no_sync_submodule
+
+.check_pre_commit_template:
+  extends: .pre_check_job_template
+  image: "$CI_DOCKER_REGISTRY/esp-idf-pre-commit:1"
+  before_script:
+    - source tools/ci/utils.sh
+    - export PYTHONPATH="$CI_PROJECT_DIR/tools:$CI_PROJECT_DIR/tools/ci/python_packages:$PYTHONPATH"
+
+check_pre_commit_master_release:
+  extends:
+    - .check_pre_commit_template
+    - .rules:protected
+  script:
+    - git diff-tree --no-commit-id --name-only -r $PIPELINE_COMMIT_SHA | xargs pre-commit run --files
+
+check_pre_commit_MR:
+  extends:
+    - .check_pre_commit_template
+    - .rules:dev
+  script:
+    - python ${CI_PROJECT_DIR}/tools/ci/ci_get_mr_info.py files ${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME} | xargs pre-commit run --files
+
+check_version:
+  # Don't run this for feature/bugfix branches, so that it is possible to modify
+  # esp_idf_version.h in a branch before tagging the next version.
+  extends:
+    - .pre_check_job_template
+    - .rules:protected
+  script:
+    - export IDF_PATH=$PWD
+    - tools/ci/check_idf_version.sh
+
+check_examples_cmake_make:
+  extends: .pre_check_job_template
+  script:
+  - python ${IDF_PATH}/tools/ci/check_examples_cmake_make.py
+
+check_rom_api_header:
+  extends: .pre_check_job_template
+  script:
+    - tools/ci/check_examples_rom_header.sh
+    - tools/ci/check_api_violation.sh
+
+check_python_style:
+  extends:
+    - .pre_check_base_template
+    - .rules:patterns:python-files
+  variables:
+    PYTHON_VER: 3.6.13
+  artifacts:
+    when: on_failure
+    paths:
+      - flake8_output.txt
+    expire_in: 1 week
+  script:
+    - python -m flake8 --config=$IDF_PATH/.flake8 --output-file=flake8_output.txt --tee --benchmark $IDF_PATH
+
+test_check_kconfigs:
+  extends: .pre_check_job_template
+  variables:
+    PYTHON_VER: 3.6.13
+  artifacts:
+    when: on_failure
+    paths:
+      - components/*/Kconfig*.new
+      - examples/*/*/*/Kconfig*.new
+      - examples/*/*/*/*/Kconfig*.new
+      - tools/*/Kconfig*.new
+      - tools/*/*/Kconfig*.new
+      - tools/*/*/*/Kconfig*.new
+    expire_in: 1 week
+  script:
+    - python ${IDF_PATH}/tools/ci/test_check_kconfigs.py
+
+check_wifi_lib_md5:
+  extends: .pre_check_base_template
+  tags:
+    - build
+  variables:
+    SUBMODULES_TO_FETCH: "components/esp_wifi/lib"
+  script:
+    - IDF_TARGET=esp32 $IDF_PATH/components/esp_wifi/test_md5/test_md5.sh
+    - IDF_TARGET=esp32s2 $IDF_PATH/components/esp_wifi/test_md5/test_md5.sh
+
+check_fuzzer_compilation:
+   extends: .pre_check_base_template
+   image: $AFL_FUZZER_TEST_IMAGE
+   script:
+     - cd ${IDF_PATH}/components/lwip/test_afl_host
+     - make MODE=dhcp_server
+     - make MODE=dhcp_client
+     - make MODE=dns
+     - cd ${IDF_PATH}/components/mdns/test_afl_fuzz_host
+     - make
+
+check_public_headers:
+  extends:
+    - .pre_check_base_template
+    - .rules:build
+  tags:
+    - build
+  script:
+    - python tools/ci/check_public_headers.py --jobs 4 --prefix xtensa-esp32-elf-
+
+check_soc_struct_headers:
+  extends:
+    - .pre_check_base_template
+    - .rules:build
+  tags:
+    - build
+  script:
+    - find ${IDF_PATH}/components/soc/*/include/soc/ -name "*_struct.h" -print0 | xargs -0 -n1 ./tools/ci/check_soc_struct_headers.py
+
+check_esp_err_to_name:
+  extends:
+    - .pre_check_base_template
+    - .rules:build
+  tags:
+    - build
+  artifacts:
+    when: on_failure
+    paths:
+      - components/esp_common/esp_err_to_name.c
+    expire_in: 1 week
+  script:
+    - cd ${IDF_PATH}/tools/
+    - ./gen_esp_err_to_name.py
+    - git diff --exit-code -- ../components/esp_common/src/esp_err_to_name.c || { echo 'Differences found. Please run gen_esp_err_to_name.py and commit the changes.'; exit 1; }
+
+scan_tests:
+  extends:
+    - .pre_check_base_template
+    - .rules:build:target_test
+  image: $CI_DOCKER_REGISTRY/ubuntu-test-env$BOT_DOCKER_IMAGE_TAG
+  tags:
+    - assign_test
+  artifacts:
+    paths:
+      - $EXAMPLE_TEST_OUTPUT_DIR
+      - $TEST_APPS_OUTPUT_DIR
+      - $COMPONENT_UT_OUTPUT_DIR
+  variables:
+    EXAMPLE_TEST_DIR: ${CI_PROJECT_DIR}/examples
+    EXAMPLE_TEST_OUTPUT_DIR: ${CI_PROJECT_DIR}/examples/test_configs
+    TEST_APPS_TEST_DIR: ${CI_PROJECT_DIR}/tools/test_apps
+    TEST_APPS_OUTPUT_DIR: ${CI_PROJECT_DIR}/tools/test_apps/test_configs
+    COMPONENT_UT_OUTPUT_DIR: ${CI_PROJECT_DIR}/component_ut/test_configs
+    CI_SCAN_TESTS_PY: ${CI_PROJECT_DIR}/tools/ci/python_packages/ttfw_idf/CIScanTests.py
+    EXTRA_TEST_DIRS: >-
+      examples/bluetooth/esp_ble_mesh/ble_mesh_console
+      examples/bluetooth/hci/controller_hci_uart_esp32
+      examples/wifi/iperf
+  script:
+    - set_component_ut_vars
+    - run_cmd python $CI_SCAN_TESTS_PY example_test $EXAMPLE_TEST_DIR -b make --exclude examples/build_system/idf_as_lib -c $CI_TARGET_TEST_CONFIG_FILE -o $EXAMPLE_TEST_OUTPUT_DIR
+    - run_cmd python $CI_SCAN_TESTS_PY example_test $EXAMPLE_TEST_DIR -b cmake --exclude examples/build_system/idf_as_lib -c $CI_TARGET_TEST_CONFIG_FILE -o $EXAMPLE_TEST_OUTPUT_DIR --extra_test_dirs $EXTRA_TEST_DIRS
+    - run_cmd python $CI_SCAN_TESTS_PY test_apps $TEST_APPS_TEST_DIR -c $CI_TARGET_TEST_CONFIG_FILE -o $TEST_APPS_OUTPUT_DIR
+    - run_cmd python $CI_SCAN_TESTS_PY component_ut $COMPONENT_UT_DIRS --exclude $COMPONENT_UT_EXCLUDES -c $CI_TARGET_TEST_CONFIG_FILE -o $COMPONENT_UT_OUTPUT_DIR
+
+# For release tag pipelines only, make sure the tag was created with 'git tag -a' so it will update
+# the version returned by 'git describe'
+check_version_tag:
+  extends:
+    - .pre_check_job_template
+    - .rules:tag:release
+  script:
+    - (git cat-file -t $CI_COMMIT_REF_NAME | grep tag) || (echo "ESP-IDF versions must be annotated tags." && exit 1)
+
+check_ut_cmake_make:
+  extends: .pre_check_job_template
+  tags:
+    - build
+  script:
+    - tools/ci/check_ut_cmake_make.sh
+
+check_artifacts_expire_time:
+  extends: .pre_check_job_template
+  script:
+    # check if we have set expire time for all artifacts
+    - python tools/ci/check_artifacts_expire_time.py
+
+check_commit_msg:
+  extends: .pre_check_job_template
+  script:
+    - git status
+    - git log -n10 --oneline ${PIPELINE_COMMIT_SHA}
+    # commit start with "WIP: " need to be squashed before merge
+    - 'git log --pretty=%s origin/master..${PIPELINE_COMMIT_SHA} -- | grep -i "^WIP:" && exit 1 || exit 0'

.gitlab/ci/rules.yml

@@ -0,0 +1,979 @@
+############
+# Patterns #
+############
+.patterns-c-files: &patterns-c-files
+  - ".gitlab/ci/static-code-analysis.yml"
+
+  - "tools/ci/static-analysis-rules.yml"
+  - "tools/ci/clang_tidy_dirs.txt"
+
+  - "**/*.{c,C}"
+  - "**/*.{h,H}"
+  - "components/**/Kconfig"
+  - "components/**/CMakeList.txt"
+
+.patterns-python-files: &patterns-python-files
+  - ".gitlab/ci/static-code-analysis.yml"
+  - "**/*.py"
+
+.patterns-sonarqube-files: &patterns-sonarqube-files
+  - "tools/ci/sonar_exclude_list.txt"
+
+.patterns-example_test: &patterns-example_test
+  - "tools/ci/python_packages/gitlab_api.py"
+  - "tools/ci/python_packages/idf_http_server_test/**/*"
+  - "tools/ci/python_packages/idf_iperf_test_util/**/*"
+  - "tools/ci/python_packages/tiny_test_fw/**/*"
+  - "tools/ci/python_packages/ttfw_idf/**/*"
+
+  - "tools/ci/find_apps_build_apps.sh"
+  - "tools/build_apps.py"
+  - "tools/find_apps.py"
+  - "tools/find_build_apps/**/*"
+
+  - "tools/esp_prov/**/*"
+  - "examples/**/*"
+
+.patterns-build-example_test: &patterns-build-example_test
+  - "tools/ci/build_example_dirs.txt"
+  - "tools/ci/get_supported_examples.sh"
+
+.patterns-build_components: &patterns-build_components
+  - "components/**/*"
+  - "examples/cxx/experimental/experimental_cpp_component/*"
+
+.patterns-build_system: &patterns-build_system
+  - "tools/cmake/**/*"
+  - "tools/kconfig_new/**/*"
+  - "tools/tools.json"
+  - "tools/ci/test_build_system*.sh"
+
+.patterns-custom_test: &patterns-custom_test
+  - "components/espcoredump/**/*"
+
+  - "tools/ci/python_packages/gitlab_api.py"
+  - "tools/ci/python_packages/tiny_test_fw/**/*"
+  - "tools/ci/python_packages/ttfw_idf/**/*"
+
+  - "tools/ci/find_apps_build_apps.sh"
+  - "tools/build_apps.py"
+  - "tools/find_apps.py"
+  - "tools/find_build_apps/**/*"
+
+  - "tools/test_apps/**/*"
+  - "tools/ldgen/**/*"
+
+.patterns-unit_test: &patterns-unit_test
+  - "tools/ci/python_packages/gitlab_api.py"
+  - "tools/ci/python_packages/tiny_test_fw/**/*"
+  - "tools/ci/python_packages/ttfw_idf/**/*"
+
+  - "tools/ci/find_apps_build_apps.sh"
+  - "tools/build_apps.py"
+  - "tools/find_apps.py"
+  - "tools/find_build_apps/**/*"
+
+  - "tools/unit-test-app/**/*"
+
+.patterns-component_ut: &patterns-component_ut
+  - "tools/ci/python_packages/gitlab_api.py"
+  - "tools/ci/python_packages/tiny_test_fw/**/*"
+  - "tools/ci/python_packages/ttfw_idf/**/*"
+
+  - "tools/ci/find_apps_build_apps.sh"
+  - "tools/build_apps.py"
+  - "tools/find_apps.py"
+  - "tools/find_build_apps/**/*"
+
+  - "components/**/test_apps/**/*"
+
+.patterns-integration_test: &patterns-integration_test
+  - "tools/ci/python_packages/tiny_test_fw/**/*"
+
+.patterns-host_test: &patterns-host_test
+  - ".gitlab/ci/host-test.yml"
+
+  - "components/**/*"
+
+  - "tools/ci/test_autocomplete.py"
+  - "tools/ci/test_build_system.sh"
+  - "tools/ci/test_build_system_cmake.sh"
+  - "tools/ci/test_check_kconfigs.py"
+  - "tools/ci/test_configure_ci_environment.sh"
+
+  - "tools/mass_mfg/**/*"
+
+  - "tools/esp_app_trace/**/*"
+  - "tools/ldgen/**/*"
+
+  - "tools/idf_monitor_base/*"
+  - "tools/idf_monitor.py"
+  - "tools/test_idf_monitor/**/*"
+
+  - "tools/idf.py"
+  - "tools/idf_py_actions/**/*"
+  - "tools/test_idf_py/**/*"
+
+  - "tools/idf_size.py"
+  - "tools/idf_size_yaml/*"
+  - "tools/test_idf_size/**/*"
+
+  - "tools/tools.json"
+  - "tools/tools_schema.json"
+  - "tools/idf_tools.py"
+  - "tools/test_idf_tools/**/*"
+
+  - "tools/mkdfu.py"
+  - "tools/test_mkdfu/**/*"
+
+  - "tools/kconfig_new/**/*"
+
+  - "tools/detect_python.sh"
+  - "tools/detect_python.fish"
+
+.patterns-windows: &patterns-windows
+  - "tools/windows/**/*"
+
+.patterns-docker: &patterns-docker
+  - "tools/docker/**/*"
+
+.patterns-submodule: &patterns-submodule
+  - "components/asio/asio"
+  - "components/bootloader/subproject/components/micro-ecc/micro-ecc"
+  - "components/bt/controller/lib_esp32"
+  - "components/bt/controller/lib_esp32c3_family"
+  - "components/bt/host/nimble/nimble"
+  - "components/cbor/tinycbor"
+  - "components/cmock/CMock"
+  - "components/cmock/CMock/vendor/c_exception"
+  - "components/cmock/CMock/vendor/unity"
+  - "components/coap/libcoap"
+  - "components/coap/libcoap/ext/tinydtls"
+  - "components/esp_phy/lib"
+  - "components/esp_wifi/lib"
+  - "components/esptool_py/esptool"
+  - "components/expat/expat"
+  - "components/json/cJSON"
+  - "components/libsodium/libsodium"
+  - "components/lwip/lwip"
+  - "components/mbedtls/mbedtls"
+  - "components/mqtt/esp-mqtt"
+  - "components/nghttp/nghttp2"
+  - "components/nghttp/nghttp2/third-party/mruby"
+  - "components/nghttp/nghttp2/third-party/neverbleed"
+  - "components/openthread/lib"
+  - "components/protobuf-c/protobuf-c"
+  - "components/spiffs/spiffs"
+  - "components/tinyusb/tinyusb"
+  - "components/unity/unity"
+  - "examples/build_system/cmake/import_lib/main/lib/tinyxml2"
+  - "examples/peripherals/secure_element/atecc608_ecdsa/components/esp-cryptoauthlib"
+
+##############
+# if anchors #
+##############
+.if-ref-master: &if-ref-master
+  if: '$CI_COMMIT_REF_NAME == "master"'
+
+.if-tag-release: &if-tag-release
+  if: '$CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/'
+
+.if-protected: &if-protected
+  if: '($CI_COMMIT_REF_NAME == "master" || $CI_COMMIT_BRANCH =~ /^release\/v/ || $CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/)'
+
+.if-protected-no_label: &if-protected-no_label
+  if: '($CI_COMMIT_REF_NAME == "master" || $CI_COMMIT_BRANCH =~ /^release\/v/ || $CI_COMMIT_TAG =~ /^v\d+\.\d+(\.\d+)?($|-)/) && $BOT_TRIGGER_WITH_LABEL == null'
+
+.if-dev-push: &if-dev-push
+  if: '$CI_COMMIT_REF_NAME != "master" && $CI_COMMIT_BRANCH !~ /^release\/v/ && $CI_COMMIT_TAG !~ /^v\d+\.\d+(\.\d+)?($|-)/ && ($CI_PIPELINE_SOURCE == "push" || $CI_PIPELINE_SOURCE == "merge_request_event")'
+
+.if-schedule: &if-schedule
+  if: '$CI_PIPELINE_SOURCE == "schedule"'
+
+.if-trigger: &if-trigger
+  if: '$CI_PIPELINE_SOURCE == "trigger"'
+
+.if-label-build-only: &if-label-build-only
+  if: '$CI_JOB_STAGE == "target_test" && $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*For Maintainers: Only Build Tests(?:,[^,\n\r]+)*$/i'
+
+#########
+# Rules #
+#########
+.rules:protected:
+  rules:
+    - <<: *if-protected
+
+.rules:protected-no_label:
+  rules:
+    - <<: *if-protected-no_label
+
+.rules:dev:
+  rules:
+    - <<: *if-trigger
+    - <<: *if-dev-push
+
+.rules:tag:release:
+  rules:
+    - <<: *if-tag-release
+
+.rules:ref:master-schedule:
+  rules:
+    - <<: *if-ref-master
+    - <<: *if-schedule
+
+.rules:ref:master-schedule-always:
+  rules:
+    - <<: *if-ref-master
+      when: always
+    - <<: *if-schedule
+      when: always
+
+.rules:patterns:clang_tidy:
+  rules:
+    - <<: *if-protected
+    - <<: *if-dev-push
+      changes: *patterns-c-files
+
+.rules:patterns:python-files:
+  rules:
+    - <<: *if-protected
+    - <<: *if-dev-push
+      changes: *patterns-python-files
+
+.rules:patterns:static-code-analysis-preview:
+  rules:
+    - <<: *if-dev-push
+      changes: *patterns-c-files
+    - <<: *if-dev-push
+      changes: *patterns-python-files
+    - <<: *if-dev-push
+      changes: *patterns-sonarqube-files
+
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+# DO NOT place comments or maintain any code from this line
+#
+# Use dependencies.yml and generate_rules.py under .gitlab/ci/dependencies dir
+# to generate labels and rules
+# Could also use pre-commit hook to finish this if detected changes on
+# these two files
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+##################
+# Auto Generated #
+##################
+.if-label-build: &if-label-build
+  if: '$BOT_LABEL_BUILD || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*build(?:,[^,\n\r]+)*$/i'
+
+.if-label-component_ut: &if-label-component_ut
+  if: '$BOT_LABEL_COMPONENT_UT || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*component_ut(?:,[^,\n\r]+)*$/i'
+
+.if-label-component_ut_esp32: &if-label-component_ut_esp32
+  if: '$BOT_LABEL_COMPONENT_UT_ESP32 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*component_ut_esp32(?:,[^,\n\r]+)*$/i'
+
+.if-label-component_ut_esp32c3: &if-label-component_ut_esp32c3
+  if: '$BOT_LABEL_COMPONENT_UT_ESP32C3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*component_ut_esp32c3(?:,[^,\n\r]+)*$/i'
+
+.if-label-component_ut_esp32s2: &if-label-component_ut_esp32s2
+  if: '$BOT_LABEL_COMPONENT_UT_ESP32S2 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*component_ut_esp32s2(?:,[^,\n\r]+)*$/i'
+
+.if-label-component_ut_esp32s3: &if-label-component_ut_esp32s3
+  if: '$BOT_LABEL_COMPONENT_UT_ESP32S3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*component_ut_esp32s3(?:,[^,\n\r]+)*$/i'
+
+.if-label-custom_test: &if-label-custom_test
+  if: '$BOT_LABEL_CUSTOM_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*custom_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-custom_test_esp32: &if-label-custom_test_esp32
+  if: '$BOT_LABEL_CUSTOM_TEST_ESP32 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*custom_test_esp32(?:,[^,\n\r]+)*$/i'
+
+.if-label-custom_test_esp32c3: &if-label-custom_test_esp32c3
+  if: '$BOT_LABEL_CUSTOM_TEST_ESP32C3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*custom_test_esp32c3(?:,[^,\n\r]+)*$/i'
+
+.if-label-custom_test_esp32s2: &if-label-custom_test_esp32s2
+  if: '$BOT_LABEL_CUSTOM_TEST_ESP32S2 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*custom_test_esp32s2(?:,[^,\n\r]+)*$/i'
+
+.if-label-custom_test_esp32s3: &if-label-custom_test_esp32s3
+  if: '$BOT_LABEL_CUSTOM_TEST_ESP32S3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*custom_test_esp32s3(?:,[^,\n\r]+)*$/i'
+
+.if-label-docker: &if-label-docker
+  if: '$BOT_LABEL_DOCKER || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*docker(?:,[^,\n\r]+)*$/i'
+
+.if-label-example_test: &if-label-example_test
+  if: '$BOT_LABEL_EXAMPLE_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*example_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-example_test_esp32: &if-label-example_test_esp32
+  if: '$BOT_LABEL_EXAMPLE_TEST_ESP32 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*example_test_esp32(?:,[^,\n\r]+)*$/i'
+
+.if-label-example_test_esp32c3: &if-label-example_test_esp32c3
+  if: '$BOT_LABEL_EXAMPLE_TEST_ESP32C3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*example_test_esp32c3(?:,[^,\n\r]+)*$/i'
+
+.if-label-example_test_esp32s2: &if-label-example_test_esp32s2
+  if: '$BOT_LABEL_EXAMPLE_TEST_ESP32S2 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*example_test_esp32s2(?:,[^,\n\r]+)*$/i'
+
+.if-label-example_test_esp32s3: &if-label-example_test_esp32s3
+  if: '$BOT_LABEL_EXAMPLE_TEST_ESP32S3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*example_test_esp32s3(?:,[^,\n\r]+)*$/i'
+
+.if-label-fuzzer_test: &if-label-fuzzer_test
+  if: '$BOT_LABEL_FUZZER_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*fuzzer_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-host_test: &if-label-host_test
+  if: '$BOT_LABEL_HOST_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*host_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-integration_test: &if-label-integration_test
+  if: '$BOT_LABEL_INTEGRATION_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*integration_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-iperf_stress_test: &if-label-iperf_stress_test
+  if: '$BOT_LABEL_IPERF_STRESS_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*iperf_stress_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-macos: &if-label-macos
+  if: '$BOT_LABEL_MACOS || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*macos(?:,[^,\n\r]+)*$/i'
+
+.if-label-macos_test: &if-label-macos_test
+  if: '$BOT_LABEL_MACOS_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*macos_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-nvs_coverage: &if-label-nvs_coverage
+  if: '$BOT_LABEL_NVS_COVERAGE || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*nvs_coverage(?:,[^,\n\r]+)*$/i'
+
+.if-label-submodule: &if-label-submodule
+  if: '$BOT_LABEL_SUBMODULE || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*submodule(?:,[^,\n\r]+)*$/i'
+
+.if-label-unit_test: &if-label-unit_test
+  if: '$BOT_LABEL_UNIT_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*unit_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-unit_test_esp32: &if-label-unit_test_esp32
+  if: '$BOT_LABEL_UNIT_TEST_ESP32 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*unit_test_esp32(?:,[^,\n\r]+)*$/i'
+
+.if-label-unit_test_esp32c3: &if-label-unit_test_esp32c3
+  if: '$BOT_LABEL_UNIT_TEST_ESP32C3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*unit_test_esp32c3(?:,[^,\n\r]+)*$/i'
+
+.if-label-unit_test_esp32s2: &if-label-unit_test_esp32s2
+  if: '$BOT_LABEL_UNIT_TEST_ESP32S2 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*unit_test_esp32s2(?:,[^,\n\r]+)*$/i'
+
+.if-label-unit_test_esp32s3: &if-label-unit_test_esp32s3
+  if: '$BOT_LABEL_UNIT_TEST_ESP32S3 || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*unit_test_esp32s3(?:,[^,\n\r]+)*$/i'
+
+.if-label-weekend_test: &if-label-weekend_test
+  if: '$BOT_LABEL_WEEKEND_TEST || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*weekend_test(?:,[^,\n\r]+)*$/i'
+
+.if-label-windows: &if-label-windows
+  if: '$BOT_LABEL_WINDOWS || $CI_MERGE_REQUEST_LABELS =~ /^(?:[^,\n\r]+,)*windows(?:,[^,\n\r]+)*$/i'
+
+.rules:build:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+
+.rules:build:component_ut-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:build:component_ut-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32c3
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:build:component_ut-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32s2
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:build:component_ut-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32s3
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:build:custom_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32
+    - <<: *if-label-weekend_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:build:custom_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:build:custom_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:build:custom_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:build:docker:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-docker
+    - <<: *if-dev-push
+      changes: *patterns-docker
+
+.rules:build:example_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32
+    - <<: *if-label-iperf_stress_test
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:build:example_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:build:example_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:build:example_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:build:integration_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-integration_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-integration_test
+
+.rules:build:macos:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-macos
+    - <<: *if-label-macos_test
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+
+.rules:build:target_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32
+    - <<: *if-label-component_ut_esp32c3
+    - <<: *if-label-component_ut_esp32s2
+    - <<: *if-label-component_ut_esp32s3
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32
+    - <<: *if-label-custom_test_esp32c3
+    - <<: *if-label-custom_test_esp32s2
+    - <<: *if-label-custom_test_esp32s3
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32
+    - <<: *if-label-example_test_esp32c3
+    - <<: *if-label-example_test_esp32s2
+    - <<: *if-label-example_test_esp32s3
+    - <<: *if-label-integration_test
+    - <<: *if-label-iperf_stress_test
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-label-weekend_test
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+    - <<: *if-dev-push
+      changes: *patterns-integration_test
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:build:unit_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:build:unit_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:build:unit_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:build:unit_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build_components
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:build:windows:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build
+    - <<: *if-label-windows
+    - <<: *if-dev-push
+      changes: *patterns-build_system
+    - <<: *if-dev-push
+      changes: *patterns-windows
+
+.rules:labels:fuzzer_test-weekend_test:
+  rules:
+    - <<: *if-label-fuzzer_test
+    - <<: *if-label-weekend_test
+
+.rules:labels:iperf_stress_test:
+  rules:
+    - <<: *if-label-iperf_stress_test
+
+.rules:labels:nvs_coverage:
+  rules:
+    - <<: *if-label-nvs_coverage
+
+.rules:labels:weekend_test:
+  rules:
+    - <<: *if-label-weekend_test
+
+.rules:test:any_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32
+    - <<: *if-label-component_ut_esp32c3
+    - <<: *if-label-component_ut_esp32s2
+    - <<: *if-label-component_ut_esp32s3
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32
+    - <<: *if-label-custom_test_esp32c3
+    - <<: *if-label-custom_test_esp32s2
+    - <<: *if-label-custom_test_esp32s3
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32
+    - <<: *if-label-example_test_esp32c3
+    - <<: *if-label-example_test_esp32s2
+    - <<: *if-label-example_test_esp32s3
+    - <<: *if-label-host_test
+    - <<: *if-label-integration_test
+    - <<: *if-label-iperf_stress_test
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-label-weekend_test
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+    - <<: *if-dev-push
+      changes: *patterns-host_test
+    - <<: *if-dev-push
+      changes: *patterns-integration_test
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:test:component_ut-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:test:component_ut-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32c3
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:test:component_ut-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32s2
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:test:component_ut-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32s3
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+
+.rules:test:custom_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:test:custom_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:test:custom_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:test:custom_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+
+.rules:test:example_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:test:example_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:test:example_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:test:example_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+
+.rules:test:host_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-host_test
+    - <<: *if-dev-push
+      changes: *patterns-host_test
+
+.rules:test:integration_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-integration_test
+    - <<: *if-dev-push
+      changes: *patterns-integration_test
+
+.rules:test:submodule:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-submodule
+    - <<: *if-dev-push
+      changes: *patterns-submodule
+
+.rules:test:target_test:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-component_ut
+    - <<: *if-label-component_ut_esp32
+    - <<: *if-label-component_ut_esp32c3
+    - <<: *if-label-component_ut_esp32s2
+    - <<: *if-label-component_ut_esp32s3
+    - <<: *if-label-custom_test
+    - <<: *if-label-custom_test_esp32
+    - <<: *if-label-custom_test_esp32c3
+    - <<: *if-label-custom_test_esp32s2
+    - <<: *if-label-custom_test_esp32s3
+    - <<: *if-label-example_test
+    - <<: *if-label-example_test_esp32
+    - <<: *if-label-example_test_esp32c3
+    - <<: *if-label-example_test_esp32s2
+    - <<: *if-label-example_test_esp32s3
+    - <<: *if-label-integration_test
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-build-example_test
+    - <<: *if-dev-push
+      changes: *patterns-component_ut
+    - <<: *if-dev-push
+      changes: *patterns-custom_test
+    - <<: *if-dev-push
+      changes: *patterns-example_test
+    - <<: *if-dev-push
+      changes: *patterns-integration_test
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:test:unit_test-esp32:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:test:unit_test-esp32c3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32c3
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:test:unit_test-esp32s2:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s2
+    - <<: *if-dev-push
+      changes: *patterns-unit_test
+
+.rules:test:unit_test-esp32s3:
+  rules:
+    - <<: *if-protected
+    - <<: *if-label-build-only
+      when: never
+    - <<: *if-label-unit_test
+    - <<: *if-label-unit_test_esp32s3
+    - <<: *if-dev-push
+      changes: *patterns-unit_test

.gitlab/ci/static-code-analysis.yml

@@ -0,0 +1,130 @@
+# pre_check stage
+clang_tidy_check:
+  extends:
+    - .pre_check_base_template
+    - .rules:patterns:clang_tidy
+  image: ${CLANG_STATIC_ANALYSIS_IMAGE}
+  artifacts:
+    paths:
+      - $OUTPUT_DIR
+    when: always
+    expire_in: 1 day
+  variables:
+    CLANG_TIDY_RUNNER_PROJ: 2107  # idf/clang-tidy-runner
+    CLANG_TIDY_DIRS_TXT: ${CI_PROJECT_DIR}/tools/ci/clang_tidy_dirs.txt
+    RULES_FILE: ${CI_PROJECT_DIR}/tools/ci/static-analysis-rules.yml
+    OUTPUT_DIR: ${CI_PROJECT_DIR}/clang_tidy_reports
+  script:
+    - python -m pip install -U pip
+    - internal_pip_install $CLANG_TIDY_RUNNER_PROJ pyclang
+    - export PATH=$PATH:$(python -c "import sys; print(sys.executable.rsplit('/', 1)[0])")
+    - dirs=$(cat ${CLANG_TIDY_DIRS_TXT} | while read line; do echo ${CI_PROJECT_DIR}/${line}; done | xargs)
+    - run_cmd idf_clang ${dirs}
+      --output-path ${OUTPUT_DIR}
+      --limit-file ${RULES_FILE}
+      --xtensa-include-dir
+      --run-clang-tidy-py ${RUN_CLANG_TIDY_PY}
+
+check_pylint:
+  extends:
+    - .pre_check_base_template
+    - .rules:patterns:python-files
+    - .before_script_minimal
+  image: $SONARQUBE_SCANNER_IMAGE
+  artifacts:
+    when: always
+    paths:
+      - pylint-report.txt
+    expire_in: 1 week
+  script:
+    - export PYTHONPATH="$IDF_PATH/tools:$IDF_PATH/tools/ci/python_packages:$PYTHONPATH"
+    - |
+      if [ -n "$CI_MERGE_REQUEST_IID" ]; then
+        export files=$(python ${CI_PROJECT_DIR}/tools/ci/ci_get_mr_info.py files ${CI_MERGE_REQUEST_SOURCE_BRANCH_NAME} | grep ".py");
+      else
+        export files=$(find . -iname "*.py" -print);
+      fi
+    - pylint --rcfile=.pylintrc $files -r n --output-format=parseable > pylint-report.txt || exit 0
+
+# build stage
+# Sonarqube related jobs put here for this reason:
+# Here we have two jobs. code_quality_check and code_quality_report.
+#
+# code_quality_check will analyze the code changes between your MR and
+# code repo stored in sonarqube server. The analysis result is only shown in
+# the comments under this MR and won't be transferred to the server.
+#
+# code_quality_report will analyze and transfer both of the newly added code
+# and the analysis result to the server.
+#
+# Put in the front to ensure that the newly merged code can be stored in
+# sonarqube server ASAP, in order to avoid reporting unrelated code issues
+.sonar_scan_template:
+  stage: build
+  image:
+    name: $SONARQUBE_SCANNER_IMAGE
+  before_script:
+    - source tools/ci/utils.sh
+    - export PYTHONPATH="$CI_PROJECT_DIR/tools:$CI_PROJECT_DIR/tools/ci/python_packages:$PYTHONPATH"
+    - fetch_submodules
+    # Exclude the submodules, all paths ends with /**
+    - submodules=$(get_all_submodules)
+    # get all exclude paths specified in tools/ci/sonar_exclude_list.txt | ignore lines start with # | xargs | replace all <space> to <comma>
+    - custom_excludes=$(cat $CI_PROJECT_DIR/tools/ci/sonar_exclude_list.txt | grep -v '^#' | xargs | sed -e 's/ /,/g')
+    # Exclude the report dir as well
+    - export EXCLUSIONS="$custom_excludes,$submodules"
+    - export SONAR_SCANNER_OPTS="-Xmx2048m"
+
+  variables:
+    GIT_DEPTH: 0
+    REPORT_PATTERN: clang_tidy_reports/*.txt
+  artifacts:
+    when: always
+    paths:
+      - $REPORT_PATTERN
+  tags:
+    - host_test
+  dependencies:  # Here is not a hard dependency relationship, could be skipped when only python files changed. so we do not use "needs" here.
+    - clang_tidy_check
+    - check_pylint
+
+code_quality_check:
+  extends:
+    - .sonar_scan_template
+    - .rules:patterns:static-code-analysis-preview
+  allow_failure: true  # since now it's using exit code to indicate the code analysis result,
+                       # we don't want to block ci when critical issues founded
+  script:
+    - export CI_MERGE_REQUEST_COMMITS=$(python ${CI_PROJECT_DIR}/tools/ci/ci_get_mr_info.py commits ${CI_COMMIT_REF_NAME} | tr '\n' ',')
+    # test if this branch have merge request, if not, exit 0
+    - test -n "$CI_MERGE_REQUEST_IID" || exit 0
+    - test -n "$CI_MERGE_REQUEST_COMMITS" || exit 0
+    - sonar-scanner
+      -Dsonar.analysis.mode=preview
+      -Dsonar.branch.name=$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME
+      -Dsonar.cxx.clangtidy.reportPath=$REPORT_PATTERN
+      -Dsonar.exclusions=$EXCLUSIONS
+      -Dsonar.gitlab.ci_merge_request_iid=$CI_MERGE_REQUEST_IID
+      -Dsonar.gitlab.commit_sha=$CI_MERGE_REQUEST_COMMITS
+      -Dsonar.gitlab.merge_request_discussion=true
+      -Dsonar.gitlab.ref_name=$CI_MERGE_REQUEST_SOURCE_BRANCH_NAME
+      -Dsonar.host.url=$SONAR_HOST_URL
+      -Dsonar.login=$SONAR_LOGIN
+      -Dsonar.python.pylint.reportPath=pylint-report.txt
+
+code_quality_report:
+  extends:
+    - .sonar_scan_template
+    - .rules:protected
+  allow_failure: true  # since now it's using exit code to indicate the code analysis result,
+                       # we don't want to block ci when critical issues founded
+  script:
+    - sonar-scanner
+      -Dsonar.branch.name=$CI_COMMIT_REF_NAME
+      -Dsonar.cxx.clangtidy.reportPath=$REPORT_PATTERN
+      -Dsonar.exclusions=$EXCLUSIONS
+      -Dsonar.gitlab.commit_sha=$PIPELINE_COMMIT_SHA
+      -Dsonar.gitlab.ref_name=$CI_COMMIT_REF_NAME
+      -Dsonar.host.url=$SONAR_HOST_URL
+      -Dsonar.login=$SONAR_LOGIN
+      -Dsonar.python.pylint.reportPath=pylint-report.txt

.gitlab/ci/target-test.yml

@@ -0,0 +1,949 @@
+# for parallel jobs, CI_JOB_NAME will be "job_name index/total" (for example, "IT_001 1/2")
+# we need to convert to pattern "job_name_index.yml"
+.define_config_file_name: &define_config_file_name |
+  JOB_NAME_PREFIX=$(echo ${CI_JOB_NAME} | awk '{print $1}')
+  JOB_FULL_NAME="${JOB_NAME_PREFIX}_${CI_NODE_INDEX}"
+  CONFIG_FILE="${CONFIG_FILE_PATH}/${JOB_FULL_NAME}.yml"
+
+.target_test_job_template:
+  stage: target_test
+  needs:
+    - assign_test
+  artifacts:
+    when: always
+    paths:
+      - "**/*.log"
+      - $LOG_PATH
+    expire_in: 1 week
+    reports:
+      junit: $LOG_PATH/*/XUNIT_RESULT.xml
+  variables:
+    TEST_FW_PATH: "$CI_PROJECT_DIR/tools/tiny-test-fw"
+    LOG_PATH: "$CI_PROJECT_DIR/TEST_LOGS"
+    ENV_FILE: "$CI_PROJECT_DIR/ci-test-runner-configs/$CI_RUNNER_DESCRIPTION/EnvConfig.yml"
+    SUBMODULES_TO_FETCH: "components/esptool_py/esptool"
+  script:
+    - *define_config_file_name
+    # first test if config file exists, if not exist, exit 0
+    - |
+      { [[ -e $CONFIG_FILE ]]; } || { echo 'No config file found. Consider decreasing the parallel count of this job in ".gitlab/ci/target-test.yml"'; exit 0; }
+    # clone test env configs
+    - retry_failed git clone $TEST_ENV_CONFIG_REPO
+    - python $CHECKOUT_REF_SCRIPT ci-test-runner-configs ci-test-runner-configs
+    # git clone the known failure cases repo, run test
+    - retry_failed git clone $KNOWN_FAILURE_CASES_REPO known_failure_cases
+    # run test
+    - cd tools/ci/python_packages/tiny_test_fw/bin
+    - run_cmd python Runner.py $TEST_CASE_PATH -c $CONFIG_FILE -e $ENV_FILE --known_failure_cases_file $CI_PROJECT_DIR/known_failure_cases/known_failure_cases.txt
+
+.example_test_template:
+  extends: .target_test_job_template
+  variables:
+    TEST_CASE_PATH: "$CI_PROJECT_DIR/examples"
+    CONFIG_FILE_PATH: "${CI_PROJECT_DIR}/examples/test_configs"
+
+.example_debug_template:
+  extends:
+    - .example_test_template
+    - .rules:test:example_test-esp32
+  variables:
+    SUBMODULES_TO_FETCH: "all"
+
+test_weekend_mqtt:
+  extends:
+    - .test_app_esp32_template
+    - .rules:labels:weekend_test
+  tags:
+    - ESP32
+    - Example_WIFI
+  script:
+    - export MQTT_PUBLISH_TEST=1
+    - export TEST_PATH=$CI_PROJECT_DIR/tools/test_apps/protocols/mqtt/publish_connect_test
+    - cd $IDF_PATH/tools/ci/python_packages/tiny_test_fw/bin
+    - run_cmd python Runner.py $TEST_PATH -c $TEST_PATH/publish_connect_mqtt_.yml
+
+.example_test_esp32_template:
+  extends:
+    - .example_test_template
+    - .rules:test:example_test-esp32
+
+.example_test_esp32s2_template:
+  extends:
+    - .example_test_template
+    - .rules:test:example_test-esp32s2
+
+.example_test_esp32c3_template:
+  extends:
+    - .example_test_template
+    - .rules:test:example_test-esp32c3
+
+.example_test_esp32s3_template:
+  extends:
+    - .example_test_template
+    - .rules:test:example_test-esp32s3
+
+example_test_001A:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_WIFI
+
+example_test_001B:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_EthKitV1
+
+example_test_001B_V3:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_EthKitV12
+
+example_test_001C:
+  extends: .example_test_esp32_template
+  parallel: 4
+  tags:
+    - ESP32
+    - Example_GENERIC
+
+example_test_001D:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_8Mflash_Ethernet
+
+example_test_OTA:
+  extends: .example_test_esp32_template
+  parallel: 2
+  tags:
+    - ESP32
+    - Example_WIFI_OTA
+
+example_test_protocols:
+  extends: .example_test_esp32_template
+  parallel: 2
+  tags:
+    - ESP32
+    - Example_WIFI_Protocols
+
+example_test_002:
+  extends: .example_test_esp32_template
+  image: $CI_DOCKER_REGISTRY/ubuntu-test-env$BOT_DOCKER_IMAGE_TAG
+  tags:
+    - ESP32
+    - Example_ShieldBox_Basic
+
+example_test_ethernet:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_Ethernet
+
+.example_test_003:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_SDIO
+
+example_test_004A:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_TWAI1
+
+example_test_004B:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_TWAI2
+
+example_test_005:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_WIFI_BT
+
+example_test_006:
+  extends:
+    - .example_test_esp32_template
+    - .rules:labels:iperf_stress_test
+  image: $CI_DOCKER_REGISTRY/ubuntu-test-env$BOT_DOCKER_IMAGE_TAG
+  tags:
+    - ESP32
+    - Example_ShieldBox
+
+example_test_007:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_I2C_CCS811_SENSOR
+
+example_test_008A:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_Flash_Encryption
+
+example_test_008B:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_Flash_Encryption_OTA
+
+example_test_009:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - test_jtag_arm
+  variables:
+    SETUP_TOOLS: "1"
+    PYTHON_VER: 3
+
+example_test_010:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_ExtFlash
+
+example_test_011:
+  extends: .example_debug_template
+  tags:
+    - ESP32
+    - Example_T2_RS485
+  variables:
+    SETUP_TOOLS: "1"
+
+example_test_012:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_RMT_IR_PROTOCOLS
+
+example_test_013:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - UT_T1_SDMODE
+
+example_test_014:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - 8Mpsram
+
+example_test_015:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_PPP
+
+example_test_016:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - Example_Modbus_TCP
+
+example_test_017:
+  extends: .example_test_esp32s2_template
+  tags:
+    - ESP32S2
+    - Example_GENERIC
+
+example_test_C3_GENERIC:
+  extends: .example_test_esp32c3_template
+  parallel: 3
+  tags:
+    - ESP32C3
+    - Example_GENERIC
+
+example_test_C3_FLASH_ENC:
+  extends: .example_test_esp32c3_template
+  tags:
+    - ESP32C3
+    - Example_Flash_Encryption
+
+example_test_C3_FLASH_ENC_OTA:
+  extends: .example_test_esp32c3_template
+  tags:
+    - ESP32C3
+    - Example_Flash_Encryption_OTA_WiFi
+
+example_test_ESP32_SDSPI:
+  extends: .example_test_esp32_template
+  tags:
+    - ESP32
+    - UT_T1_SPIMODE
+
+example_test_S3_GENERIC:
+  extends: .example_test_esp32s3_template
+  tags:
+    - ESP32S3
+    - Example_GENERIC
+
+example_test_ESP32S2_SDSPI:
+  extends: .example_test_esp32s2_template
+  tags:
+    - ESP32S2
+    - UT_T1_SPIMODE
+
+example_test_ESP32C3_SDSPI:
+  extends: .example_test_esp32c3_template
+  tags:
+    - ESP32C3
+    - UT_T1_SPIMODE
+
+.test_app_template:
+  extends: .target_test_job_template
+  variables:
+    TEST_CASE_PATH: "$CI_PROJECT_DIR/tools/test_apps"
+    CONFIG_FILE_PATH: "${CI_PROJECT_DIR}/tools/test_apps/test_configs"
+
+.test_app_esp32_template:
+  extends:
+    - .test_app_template
+    - .rules:test:custom_test-esp32
+
+.test_app_esp32s2_template:
+  extends:
+    - .test_app_template
+    - .rules:test:custom_test-esp32s2
+
+.test_app_esp32c3_template:
+  extends:
+    - .test_app_template
+    - .rules:test:custom_test-esp32c3
+
+.test_app_esp32s3_template:
+  extends:
+    - .test_app_template
+    - .rules:test:custom_test-esp32s3
+
+test_app_test_001:
+  extends: .test_app_esp32_template
+  tags:
+    - ESP32
+    - test_jtag_arm
+  variables:
+    SETUP_TOOLS: "1"
+
+test_app_test_002:
+  extends: .test_app_esp32_template
+  tags:
+    - ESP32
+    - Example_WIFI
+
+test_app_test_003:
+  extends: .test_app_esp32_template
+  tags:
+    - ESP32
+    - Example_PPP
+
+test_app_test_004:
+  extends: .test_app_esp32s2_template
+  parallel: 2
+  tags:
+    - ESP32S2
+    - Example_GENERIC
+
+test_app_test_005:
+  extends: .test_app_esp32c3_template
+  tags:
+    - ESP32C3
+    - Example_GENERIC
+
+test_app_test_esp32_generic:
+  extends: .test_app_esp32_template
+  parallel: 5
+  tags:
+    - ESP32
+    - Example_GENERIC
+  variables:
+    SETUP_TOOLS: "1"
+
+test_app_test_flash_psram_f4r4:
+  extends: .test_app_esp32s3_template
+  tags:
+    - ESP32S3
+    - MSPI_F4R4
+
+test_app_test_flash_psram_f4r8:
+  extends: .test_app_esp32s3_template
+  tags:
+    - ESP32S3
+    - MSPI_F4R8
+
+test_app_test_flash_psram_f8r8:
+  extends: .test_app_esp32s3_template
+  tags:
+    - ESP32S3
+    - MSPI_F8R8
+
+.component_ut_template:
+  extends: .target_test_job_template
+  variables:
+    CONFIG_FILE_PATH: "${CI_PROJECT_DIR}/component_ut/test_configs"
+  script:
+    - *define_config_file_name
+    # first test if config file exists, if not exist, exit 0
+    - test -e $CONFIG_FILE || exit 0
+    - set_component_ut_vars
+    # clone test env configs
+    - retry_failed git clone $TEST_ENV_CONFIG_REPO
+    - python $CHECKOUT_REF_SCRIPT ci-test-runner-configs ci-test-runner-configs
+    # git clone the known failure cases repo, run test
+    - retry_failed git clone $KNOWN_FAILURE_CASES_REPO known_failure_cases
+    # run test
+    - cd tools/ci/python_packages/tiny_test_fw/bin
+    - run_cmd python Runner.py $COMPONENT_UT_DIRS -c $CONFIG_FILE -e $ENV_FILE --known_failure_cases_file $CI_PROJECT_DIR/known_failure_cases/known_failure_cases.txt
+
+.component_ut_esp32_template:
+  extends:
+    - .component_ut_template
+    - .rules:test:component_ut-esp32
+
+.component_ut_esp32s2_template:
+  extends:
+    - .component_ut_template
+    - .rules:test:component_ut-esp32s2
+
+.component_ut_esp32s3_template:
+  extends:
+    - .component_ut_template
+    - .rules:test:component_ut-esp32s3
+
+.component_ut_esp32c3_template:
+  extends:
+    - .component_ut_template
+    - .rules:test:component_ut-esp32c3
+
+component_ut_test_001:
+  extends: .component_ut_esp32_template
+  tags:
+    - ESP32
+    - COMPONENT_UT_GENERIC
+
+component_ut_test_esp32s2:
+  extends: .component_ut_esp32s2_template
+  tags:
+    - ESP32S2
+    - COMPONENT_UT_GENERIC
+
+component_ut_test_esp32s3:
+  extends: .component_ut_esp32s3_template
+  tags:
+    - ESP32S3
+    - COMPONENT_UT_GENERIC
+
+component_ut_test_esp32c3:
+  extends: .component_ut_esp32c3_template
+  tags:
+    - ESP32C3
+    - COMPONENT_UT_GENERIC
+
+.unit_test_template:
+  extends: .target_test_job_template
+  variables:
+    TEST_CASE_PATH: "$CI_PROJECT_DIR/tools/unit-test-app"
+    CONFIG_FILE_PATH: "${CI_PROJECT_DIR}/components/idf_test/unit_test/CIConfigs"
+
+.unit_test_esp32_template:
+  extends:
+    - .unit_test_template
+    - .rules:test:unit_test-esp32
+
+.unit_test_esp32s2_template:
+  extends:
+    - .unit_test_template
+    - .rules:test:unit_test-esp32s2
+
+.unit_test_esp32s3_template:
+  extends:
+    - .unit_test_template
+    - .rules:test:unit_test-esp32s3
+
+.unit_test_esp32c3_template:
+  extends:
+    - .unit_test_template
+    - .rules:test:unit_test-esp32c3
+
+UT_001:
+  extends: .unit_test_esp32_template
+  parallel: 50
+  tags:
+    - ESP32_IDF
+    - UT_T1_1
+
+# Max. allowed value of 'parallel' is 50.
+
+UT_002:
+  extends: .unit_test_esp32_template
+  parallel: 15
+  tags:
+    - ESP32_IDF
+    - UT_T1_1
+    - psram
+
+UT_003:
+  extends: .unit_test_esp32_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - UT_T1_SDMODE
+
+UT_004:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_SPIMODE
+
+UT_005:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_SDMODE
+    - psram
+
+UT_006:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_SPIMODE
+    - psram
+
+UT_007:
+  extends: .unit_test_esp32_template
+  parallel: 4
+  tags:
+    - ESP32_IDF
+    - UT_T1_1
+
+UT_008:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_GPIO
+    - psram
+
+UT_012:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_LEDC
+    - psram
+
+UT_014:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T2_RS485
+    - psram
+
+UT_017:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - EMMC
+
+UT_018:
+  extends: .unit_test_esp32_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - UT_T1_1
+    - 8Mpsram
+
+UT_020:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - Example_SPI_Multi_device
+    - psram
+
+UT_021:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - psram
+    - UT_T1_FlashEncryption
+
+UT_022:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T2_I2C
+    - psram
+
+UT_028:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T2_1
+    - psram
+
+UT_031:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_FlashEncryption
+
+UT_033:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T2_Ethernet
+    - psram
+
+UT_034:
+  extends: .unit_test_esp32_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - UT_T1_ESP_FLASH
+
+UT_035:
+  extends: .unit_test_esp32s2_template
+  parallel: 50
+  tags:
+    - ESP32S2_IDF
+    - UT_T1_1
+
+UT_036:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_PSRAMV0
+    - psram
+
+# ToDo: re-enable this job when ESP32-S2 LEDC runner installed
+# UT_037:
+#   extends: .unit_test_esp32s2_template
+#   tags:
+#     - ESP32S2_IDF
+#     - UT_T1_LEDC
+
+UT_038:
+  extends: .unit_test_esp32s2_template
+  parallel: 2
+  tags:
+    - ESP32S2_IDF
+    - UT_T1_ESP_FLASH
+
+UT_041:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_no32kXTAL
+    - psram
+
+UT_043:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_32kXTAL
+    - psram
+
+UT_044:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_SDIO
+
+UT_045:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_SDIO
+    - psram
+
+UT_046:
+  extends: .unit_test_esp32_template
+  tags:
+    - ESP32_IDF
+    - UT_T1_GPIO
+
+UT_047:
+  extends: .unit_test_esp32s2_template
+  parallel: 6
+  tags:
+    - ESP32S2_IDF
+    - UT_T1_1
+
+UT_S2_SPI_DUAL:
+  extends: .unit_test_esp32s2_template
+  tags:
+    - ESP32S2_IDF
+    - Example_SPI_Multi_device
+
+UT_S2_SDSPI:
+  extends: .unit_test_esp32s2_template
+  tags:
+    - ESP32S2_IDF
+    - UT_T1_SPIMODE
+
+UT_C3:
+  extends: .unit_test_esp32c3_template
+  parallel: 34
+  tags:
+    - ESP32C3_IDF
+    - UT_T1_1
+
+UT_C3_FLASH:
+  extends: .unit_test_esp32c3_template
+  parallel: 2
+  tags:
+    - ESP32C3_IDF
+    - UT_T1_ESP_FLASH
+
+UT_C3_SPI_DUAL:
+  extends: .unit_test_esp32c3_template
+  tags:
+    - ESP32C3_IDF
+    - Example_SPI_Multi_device
+
+UT_C3_FLASH_ENC:
+  extends: .unit_test_esp32c3_template
+  tags:
+    - ESP32C3_IDF
+    - UT_T1_FlashEncryption
+
+UT_C3_I2C:
+  extends: .unit_test_esp32c3_template
+  tags:
+    - ESP32C3_IDF
+    - UT_T2_I2C
+
+UT_C3_FLASH_SUSPEND:
+  extends: .unit_test_esp32c3_template
+  tags:
+    - ESP32C3_IDF
+    - UT_T1_Flash_Suspend
+
+UT_C3_SDSPI:
+  extends: .unit_test_esp32c3_template
+  tags:
+    - ESP32C3_IDF
+    - UT_T1_SPIMODE
+
+UT_S3:
+  extends: .unit_test_esp32s3_template
+  parallel: 31
+  tags:
+    - ESP32S3_IDF
+    - UT_T1_1
+
+UT_S3_SPI_DUAL:
+  extends: .unit_test_esp32s3_template
+  tags:
+    - ESP32S3_IDF
+    - Example_SPI_Multi_device
+
+UT_S3_FLASH:
+  extends: .unit_test_esp32s3_template
+  parallel: 2
+  tags:
+    - ESP32S3_IDF
+    - UT_T1_ESP_FLASH
+
+component_ut_test_ip101:
+  extends: .component_ut_esp32_template
+  tags:
+    - ESP32
+    - COMPONENT_UT_IP101
+
+component_ut_test_lan8720:
+  extends: .component_ut_esp32_template
+  tags:
+    - ESP32
+    - COMPONENT_UT_LAN8720
+
+.integration_test_template:
+  extends:
+    - .target_test_job_template
+    - .rules:test:integration_test
+  needs:
+    - assign_test
+    - build_ssc_esp32
+  variables:
+    LOCAL_ENV_CONFIG_PATH: "$CI_PROJECT_DIR/ci-test-runner-configs/$CI_RUNNER_DESCRIPTION/ESP32_IDF"
+    LOG_PATH: "${CI_PROJECT_DIR}/TEST_LOGS"
+    TEST_CASE_FILE_PATH: "$CI_PROJECT_DIR/auto_test_script/TestCaseFiles"
+    MODULE_UPDATE_FILE: "$CI_PROJECT_DIR/components/idf_test/ModuleDefinition.yml"
+    CONFIG_FILE_PATH: "${CI_PROJECT_DIR}/components/idf_test/integration_test/CIConfigs"
+    KNOWN_ISSUE_FILE: "${CI_PROJECT_DIR}/components/idf_test/integration_test/KnownIssues"
+    CI_RUNNER_SCRIPT: "${CI_PROJECT_DIR}/auto_test_script/bin/CIRunner.py"
+    PYTHONPATH: ${CI_PROJECT_DIR}/auto_test_script/packages
+    # auto_test_script only supports python 3.7.x
+    PYTHON_VER: 3.7.7
+  script:
+    - *define_config_file_name
+    # first test if config file exists, if not exist, exit 0
+    - test -e $CONFIG_FILE || exit 0
+    # clone local test env configs
+    - retry_failed git clone $TEST_ENV_CONFIG_REPO
+    - python $CHECKOUT_REF_SCRIPT ci-test-runner-configs ci-test-runner-configs
+    # clone test bench
+    # can not retry if downing git lfs files failed, so using empty_branch first.
+    - retry_failed git clone ${CI_AUTO_TEST_SCRIPT_REPO_URL} -b empty_branch
+    - retry_failed git -C auto_test_script checkout -f ${CI_AUTO_TEST_SCRIPT_REPO_BRANCH}
+    - python $CHECKOUT_REF_SCRIPT auto_test_script auto_test_script --customized_only
+    - cat ${KNOWN_ISSUE_FILE} >> ${TEST_CASE_FILE_PATH}/KnownIssues
+    # run test
+    - python ${CI_RUNNER_SCRIPT} -l "$LOG_PATH/$JOB_FULL_NAME" -c $CONFIG_FILE -e $LOCAL_ENV_CONFIG_PATH -t $TEST_CASE_FILE_PATH
+
+nvs_compatible_test:
+  extends: .integration_test_template
+  artifacts:
+    when: always
+    paths:
+      - $LOG_PATH
+      - nvs_wifi.bin
+    expire_in: 1 mos
+  tags:
+    - ESP32_IDF
+    - NVS_Compatible
+  script:
+    - *define_config_file_name
+    # first test if config file exists, if not exist, exit 0
+    - test -e $CONFIG_FILE || exit 0
+    # clone local test env configs
+    - retry_failed git clone $TEST_ENV_CONFIG_REPO
+    - python $CHECKOUT_REF_SCRIPT ci-test-runner-configs ci-test-runner-configs
+    # clone test bench
+    # can not retry if downing git lfs files failed, so using empty_branch first.
+    - retry_failed git clone ${CI_AUTO_TEST_SCRIPT_REPO_URL} -b empty_branch
+    - retry_failed git -C auto_test_script checkout -f ${CI_AUTO_TEST_SCRIPT_REPO_BRANCH}
+    - python $CHECKOUT_REF_SCRIPT auto_test_script auto_test_script --customized_only
+    # prepare nvs bins
+    - cd auto_test_script
+    - ./tools/prepare_nvs_bin.sh
+    # run test
+    - python ${CI_RUNNER_SCRIPT} -l "$LOG_PATH/$JOB_FULL_NAME" -c $CONFIG_FILE -e $LOCAL_ENV_CONFIG_PATH -t $TEST_CASE_FILE_PATH
+
+IT_001:
+  extends: .integration_test_template
+  parallel: 3
+  tags:
+    - ESP32_IDF
+    - SSC_T1_4
+
+IT_002:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_2
+
+IT_003:
+  extends: .integration_test_template
+  parallel: 14
+  tags:
+    - ESP32_IDF
+    - SSC_T2_5
+
+IT_004:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_APC
+
+IT_005:
+  extends: .integration_test_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - SSC_T1_5
+
+IT_006:
+  extends: .integration_test_template
+  parallel: 12
+  tags:
+    - ESP32_IDF
+    - SSC_T1_6
+
+IT_007:
+  extends: .integration_test_template
+  parallel: 3
+  tags:
+    - ESP32_IDF
+    - SSC_T1_7
+
+IT_008:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_8
+
+IT_009:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_3
+
+IT_011:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_MESH1
+
+IT_012:
+  extends: .integration_test_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - SSC_T2_MESH1
+
+IT_013:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T3_MESH1
+
+IT_014:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T6_MESH1
+
+IT_015:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T12_MESH1
+
+IT_016:
+  extends: .integration_test_template
+  allow_failure: true
+  tags:
+    - ESP32_IDF
+    - SSC_T50_MESH1
+
+IT_017:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_MESH2
+
+IT_018:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T1_9
+
+IT_019:
+  extends: .integration_test_template
+  parallel: 2
+  tags:
+    - ESP32_IDF
+    - SSC_T2_2
+
+IT_020:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T2_3
+
+IT_021:
+  extends: .integration_test_template
+  tags:
+    - ESP32_IDF
+    - SSC_T2_4

.gitlab/merge_request_templates/Mixed Template.md

@@ -0,0 +1,63 @@
+_All texts in italics are instructional and should be replaced by contents or removed._
+
+## Checklist
+
+_This entire section can be deleted if all items are checked._
+
+* [ ] Enough information to help reviewers understand the issue, its root cause, impact, and the proposed solution
+* [ ] Enough information to help reviewers understand the feature, its functional description, example, documentation, test cases, test results, feature TODO list
+* [ ] The MR Title describes the change, including the component name, ie "lwip: Add support for IP over Pigeon"
+* [ ] All related links, including JIRA, backport, submodule MR, are mentioned in the `Related` subsection.
+* [ ] Any GitHub issues are linked inside the git commit message and corresponding release notes
+* [ ] Add label for the area this MR is part of
+* [ ] For documentation updates, check if label `Docs` and `needs translation:CN` or `needs translation:EN`  have been added when the other language version still needs the update. Skip adding the label if the document is not yet translated.
+* [ ] Check if documents requiring translation fall under get-started section. If yes, add the labels mentioned above. Then the documentation team will assign a translator for you. Please inform the translator to prepare translation once your MR is ready to merge. The translation should be included in your MR to get it merged. For more information, see documentation workflow in Wiki.
+* [ ] Any necessary "needs backport" labels are added
+* [ ] Check if this is a breaking change. If it is, add notes to the `Breaking change notes` subsection below
+* [ ] Release note entry if this is a new public feature, or a fix for an issue introduced in the previous release.
+* [ ] The commit log is clean and ready to merge.
+* [ ] All relevant CI jobs have been run, i.e. jobs which cover the code changed by the MR.
+
+---
+
+_For issues, put enough information here to help reviewers understand the issue, its root cause, impact, and the proposed solution._
+
+_If this issue is a regression, specify in the `Related` subsection below, in which commit or MR it was introduced. This helps reviewers to check if the backport labels are set correctly._
+
+---
+
+_For features, put enough information here to help reviewers understand the feature, its functional description, example, documentation, test cases, test results, feature TODO list._
+
+---
+
+_For other small/non-public changes, which are not expected to be in the release notes, can be mentioned here, include:_
+
+ * changes that don't apply to customers, e.g. some CI fixes, test only MR and etc
+
+## Related
+
+* Mention or related JIRA tasks (e.g. IDF-0000), to make sure they get updated.
+* Mention submodule MR, if there is
+* Mention backport(ed) MR, if there is
+
+_Don't touch the subsection titles below, they will be parsed by scripts._
+
+## Release notes (Mandatory)
+
+_Changes made in this MR that should go into the **Release Notes** should be listed here. Please use **past tense** and *specify the area (see maintainers page of IDF internal wiki)*. If there is a subscope, include it and separate with slash (`/`). Minor changes can go to the descriptions above without a release notes entry._
+
+_Write all the changes in a **list** (Start at the beginning of the line with `-` or `*`). If multiple changes are made, each of them should take a single line. If there is only one change to list, it should still be the only line of a list. If this MR does not need any release notes, write "No release notes" here without the `-` or `*`. e.g._
+
+* [WiFi] Changed/fixed/updated xxx
+* [WiFi] Added support of xxx
+* [Peripheral Drivers/I2S] Fixed xxx (https://github.com/espressif/esp-idf/issues/xxxx)
+
+## Breaking change notes
+
+_Remove this subsection if not used._
+
+_If there are any breaking changes, please mention it here. Talking about (1) what is not accepted any more, (2) the alternative solution and (3) the benefits/reason. e.g._
+
+_Please strictly follow the breaking change restriction, which means, if there is a breaking change but you are merging to non-major versions, you have to separate the breaking part out to another MR for a major version. The breaking change subsection is only accepted in MRs merging to major versions._
+
+* [VFS/UART] Now vfs_uart_set_rts_cts accept one more instance argument, to support configuration to different ports.

.gitmodules

@@ -7,9 +7,9 @@
 	path = components/esptool_py/esptool
 	url = ../../espressif/esptool.git
 
-[submodule "components/bt/controller/lib"]
-	path = components/bt/controller/lib
-	url = ../../espressif/esp32-bt-lib.git
+[submodule "components/bt/controller/lib_esp32"]
+	path = components/bt/controller/lib_esp32
+        url = ../../espressif/esp32-bt-lib.git
 
 [submodule "components/bootloader/subproject/components/micro-ecc/micro-ecc"]
 	path = components/bootloader/subproject/components/micro-ecc/micro-ecc
@@ -79,3 +79,34 @@
 	path = components/esp_wifi/lib
 	url = ../../espressif/esp32-wifi-lib.git
 
+[submodule "components/tinyusb/tinyusb"]
+	path = components/tinyusb/tinyusb
+	url = ../../espressif/tinyusb.git
+
+[submodule "examples/peripherals/secure_element/atecc608_ecdsa/components/esp-cryptoauthlib"]
+	path = examples/peripherals/secure_element/atecc608_ecdsa/components/esp-cryptoauthlib
+	url = ../../espressif/esp-cryptoauthlib.git
+
+[submodule "components/cmock/CMock"]
+	path = components/cmock/CMock
+	url = ../../ThrowTheSwitch/CMock.git
+
+[submodule "components/openthread/openthread"]
+	path = components/openthread/openthread
+	url = ../../espressif/openthread.git
+
+[submodule "components/bt/controller/lib_esp32c3_family"]
+	path = components/bt/controller/lib_esp32c3_family
+	url = ../../espressif/esp32c3-bt-lib.git
+
+[submodule "components/esp_phy/lib"]
+	path = components/esp_phy/lib
+	url = ../../espressif/esp-phy-lib.git
+
+[submodule "components/openthread/lib"]
+	path = components/openthread/lib
+	url = ../../espressif/esp-thread-lib.git
+
+[submodule "components/ieee802154/lib"]
+	path = components/ieee802154/lib
+	url = ../../espressif/esp-ieee802154-lib.git

.mypy.ini

@@ -0,0 +1,26 @@
+[mypy]
+
+# Specifies the Python version used to parse and check the target program
+python_version = 3.9
+
+# Disallows defining functions without type annotations or with incomplete type annotations
+# True => enforce type annotation in all function definitions
+disallow_untyped_defs = True
+
+# Shows a warning when returning a value with type Any from a function declared with a non- Any return type
+warn_return_any = True
+
+# Shows errors for missing return statements on some execution paths
+warn_no_return = True
+
+# Suppress error messages about imports that cannot be resolved
+# True => ignore all import errors
+ignore_missing_imports = True
+
+# Disallows defining functions with incomplete type annotations
+disallow_incomplete_defs = False
+
+# Directs what to do with imports when the imported module is found as a .py file and not part of the files,
+# modules and packages provided on the command line.
+# SKIP -> mypy checks only single file, not included imports
+follow_imports = skip

.pre-commit-config.yaml

@@ -0,0 +1,112 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: trailing-whitespace
+        # note: whitespace exclusions use multiline regex, see https://pre-commit.com/#regular-expressions
+        # items are:
+        # 1 - some file extensions
+        # 2 - any file matching *test*/*expected* (for host tests, if possible use this naming pattern always)
+        # 3 - any directory named 'testdata'
+        # 4 - IDF monitor test data
+        exclude: &whitespace_excludes |
+          (?x)^(
+            .+\.(md|rst|map|bin)|
+            .+test.*\/.*expected.*|
+            .+\/testdata\/.+|
+            .+test_idf_monitor\/tests\/.+
+          )$
+      - id: end-of-file-fixer
+        exclude: *whitespace_excludes
+      - id: check-executables-have-shebangs
+      - id: mixed-line-ending
+        args: ['-f=lf']
+      - id: double-quote-string-fixer
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: 3.9.2
+    hooks:
+      - id: flake8
+        args: ['--config=.flake8', '--tee', '--benchmark']
+  - repo: https://github.com/pycqa/isort
+    rev: 5.9.3
+    hooks:
+      - id: isort
+        name: isort (python)
+  - repo: local
+    hooks:
+      - id: check-executables
+        name: Check File Permissions
+        entry: tools/ci/check_executables.py --action executables
+        language: python
+        types: [executable]
+        exclude: '\.pre-commit/.+'
+      - id: check-executable-list
+        name: Validate executable-list.txt
+        entry: tools/ci/check_executables.py --action list
+        language: python
+        pass_filenames: false
+        always_run: true
+      - id: check-kconfigs
+        name: Validate Kconfig files
+        entry: tools/ci/check_kconfigs.py
+        language: python
+        files: '^Kconfig$|Kconfig.*$'
+      - id: check-deprecated-kconfigs-options
+        name: Check if any Kconfig Options Deprecated
+        entry: tools/ci/check_deprecated_kconfigs.py
+        language: python
+        files: 'sdkconfig\.ci$|sdkconfig\.rename$|sdkconfig.*$'
+      - id: cmake-lint
+        name: Check CMake Files Format
+        entry: cmakelint --linelength=120 --spaces=4 --filter=-whitespace/indent
+        language: python
+        additional_dependencies:
+          - cmakelint==1.4.1
+        files: 'CMakeLists.txt$|\.cmake$'
+        exclude: '\/third_party\/'
+      - id: check-codeowners
+        name: Validate Codeowner File
+        entry: tools/ci/check_codeowners.py ci-check
+        language: python
+        files: '\.gitlab/CODEOWNERS'
+        pass_filenames: false
+      - id: check-rules-yml
+        name: Check rules.yml all rules have at lease one job applied, all rules needed exist
+        entry: tools/ci/check_rules_yml.py
+        language: python
+        files: '\.gitlab/ci/.+\.yml|\.gitlab-ci.yml'
+        pass_filenames: false
+        additional_dependencies:
+          - PyYAML == 5.3.1
+      - id: check-generated-rules
+        name: Check rules are generated (based on .gitlab/ci/dependencies/dependencies.yml)
+        entry: .gitlab/ci/dependencies/generate_rules.py
+        language: python
+        files: '\.gitlab/ci/dependencies/.+|\.gitlab/ci/rules\.yml'
+        pass_filenames: false
+        additional_dependencies:
+          - PyYAML == 5.3.1
+      - id: mypy-check
+        name: Check type annotations in python files
+        entry: tools/ci/check_type_comments.py
+        additional_dependencies:
+          - 'mypy==0.800'
+          - 'mypy-extensions==0.4.3'
+        language: python
+        types: [python]
+      - id: check-tools-files-patterns
+        name: Check tools dir files patterns
+        entry: tools/ci/check_tools_files_patterns.py
+        language: python
+        files: '^tools/.+'
+        additional_dependencies:
+          - PyYAML == 5.3.1
+        pass_filenames: false
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.0.1
+    hooks:
+      - id: file-contents-sorter
+        files: 'tools\/ci\/(executable-list\.txt|mypy_ignore_list\.txt)'

.pylintrc

@@ -0,0 +1,606 @@
+[MASTER]
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code.
+extension-pkg-whitelist=
+
+# Specify a score threshold to be exceeded before program exits with error.
+fail-under=10
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
+# number of processors available to use.
+jobs=1
+
+# Control the amount of potential inferred values when inferring a single
+# object. This can help the performance when dealing with large functions or
+# complex, nested conditions.
+limit-inference-results=100
+
+# List of plugins (as comma separated values of python module names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# When enabled, pylint would attempt to guess common misconfiguration and emit
+# user-friendly hints instead of false-positive error messages.
+suggestion-mode=yes
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
+confidence=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once). You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use "--disable=all --enable=classes
+# --disable=W".
+disable=print-statement,
+        parameter-unpacking,
+        unpacking-in-except,
+        old-raise-syntax,
+        backtick,
+        long-suffix,
+        old-ne-operator,
+        old-octal-literal,
+        import-star-module-level,
+        non-ascii-bytes-literal,
+        raw-checker-failed,
+        bad-inline-option,
+        locally-disabled,
+        file-ignored,
+        suppressed-message,
+        useless-suppression,
+        deprecated-pragma,
+        use-symbolic-message-instead,
+        apply-builtin,
+        basestring-builtin,
+        buffer-builtin,
+        cmp-builtin,
+        coerce-builtin,
+        execfile-builtin,
+        file-builtin,
+        long-builtin,
+        raw_input-builtin,
+        reduce-builtin,
+        standarderror-builtin,
+        unicode-builtin,
+        xrange-builtin,
+        coerce-method,
+        delslice-method,
+        getslice-method,
+        setslice-method,
+        no-absolute-import,
+        old-division,
+        dict-iter-method,
+        dict-view-method,
+        next-method-called,
+        metaclass-assignment,
+        indexing-exception,
+        raising-string,
+        reload-builtin,
+        oct-method,
+        hex-method,
+        nonzero-method,
+        cmp-method,
+        input-builtin,
+        round-builtin,
+        intern-builtin,
+        unichr-builtin,
+        map-builtin-not-iterating,
+        zip-builtin-not-iterating,
+        range-builtin-not-iterating,
+        filter-builtin-not-iterating,
+        using-cmp-argument,
+        eq-without-hash,
+        div-method,
+        idiv-method,
+        rdiv-method,
+        exception-message-attribute,
+        invalid-str-codec,
+        sys-max-int,
+        bad-python3-import,
+        deprecated-string-function,
+        deprecated-str-translate-call,
+        deprecated-itertools-function,
+        deprecated-types-field,
+        next-method-defined,
+        dict-items-not-iterating,
+        dict-keys-not-iterating,
+        dict-values-not-iterating,
+        deprecated-operator-function,
+        deprecated-urllib-function,
+        xreadlines-attribute,
+        deprecated-sys-function,
+        exception-escape,
+        comprehension-escape,
+        missing-function-docstring, # Modified since here, include this line
+        missing-class-docstring,
+        missing-module-docstring,
+        wrong-import-order,
+        invalid-name,
+        too-few-public-methods,
+        too-many-locals,
+        bad-super-call,  # since we still haven't drop python2 support
+        too-many-nested-blocks,
+        too-many-branches,
+        too-many-statements,
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+enable=c-extension-no-member
+
+
+[REPORTS]
+
+# Python expression which should return a score less than or equal to 10. You
+# have access to the variables 'error', 'warning', 'refactor', and 'convention'
+# which contain the number of messages in each category, as well as 'statement'
+# which is the total number of statements analyzed. This score is used by the
+# global evaluation report (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-template=
+
+# Set the output format. Available formats are text, parseable, colorized, json
+# and msvs (visual studio). You can also give a reporter class, e.g.
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Tells whether to display a full report or only the messages.
+reports=no
+
+# Activate the evaluation score.
+score=yes
+
+
+[REFACTORING]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+# Complete name of functions that never returns. When checking for
+# inconsistent-return-statements if a never returning function is called then
+# it will be considered as an explicit return statement and no message will be
+# printed.
+never-returning-functions=sys.exit
+
+
+[TYPECHECK]
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# Tells whether to warn about missing members when the owner of the attribute
+# is inferred to be None.
+ignore-none=yes
+
+# This flag controls whether pylint should warn about no-member and similar
+# checks whenever an opaque object is returned when inferring. The inference
+# can return multiple potential results while evaluating a Python object, but
+# some branches might not be evaluated, which results in partial inference. In
+# that case, it might be useful to still emit no-member and other checks for
+# the rest of the inferred objects.
+ignore-on-opaque-inference=yes
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis). It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# Show a hint with possible names when a member name was not found. The aspect
+# of finding the hint is based on edit distance.
+missing-member-hint=yes
+
+# The minimum edit distance a name should have in order to be considered a
+# similar match for a missing member name.
+missing-member-hint-distance=1
+
+# The total number of similar names that should be taken in consideration when
+# showing a hint for a missing member.
+missing-member-max-choices=1
+
+# List of decorators that change the signature of a decorated function.
+signature-mutators=ttfw_idf.idf_example_test,ttfw_idf.idf_unit_test,ttfw_idf.idf_custom_test,ttfw_idf.idf_component_unit_test
+
+
+[SPELLING]
+
+# Limits count of emitted suggestions for spelling mistakes.
+max-spelling-suggestions=4
+
+# Spelling dictionary name. Available dictionaries: none. To make it work,
+# install the python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains the private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to the private dictionary (see the
+# --spelling-private-dict-file option) instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[FORMAT]
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Number of spaces of indent required inside a hanging or continued line.
+indent-after-paren=4
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Maximum number of characters on a single line.
+max-line-length=160
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# List of optional constructs for which whitespace checking is disabled. `dict-
+# separator` is used to allow tabulation in dicts, etc.: {1  : 1,\n222: 2}.
+# `trailing-comma` allows a space between comma and closing bracket: (a, ).
+# `empty-line` allows space-only lines.
+no-space-check=trailing-comma,
+               dict-separator
+
+# Allow the body of a class to be on the same line as the declaration if body
+# contains single statement.
+single-line-class-stmt=no
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+
+[STRING]
+
+# This flag controls whether inconsistent-quotes generates a warning when the
+# character used as a quote delimiter is used inconsistently within a module.
+check-quote-consistency=no
+
+# This flag controls whether the implicit-str-concat should generate a warning
+# on implicit string concatenation in sequences defined over several lines.
+check-str-concat-over-line-jumps=no
+
+
+[LOGGING]
+
+# The type of string formatting that logging methods do. `old` means using %
+# formatting, `new` is for `{}` formatting.
+logging-format-style=old
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=logging
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+# Regular expression of note tags to take in consideration.
+#notes-rgx=
+
+
+[SIMILARITIES]
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+
+[VARIABLES]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid defining new builtins when possible.
+additional-builtins=
+
+# Tells whether unused global variables should be treated as a violation.
+allow-global-unused-variables=yes
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,
+          _cb
+
+# A regular expression matching the name of dummy variables (i.e. expected to
+# not be used).
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore.
+ignored-argument-names=_.*|^ignored_|^unused_
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io
+
+
+[BASIC]
+
+# Naming style matching correct argument names.
+argument-naming-style=snake_case
+
+# Regular expression matching correct argument names. Overrides argument-
+# naming-style.
+#argument-rgx=
+
+# Naming style matching correct attribute names.
+attr-naming-style=snake_case
+
+# Regular expression matching correct attribute names. Overrides attr-naming-
+# style.
+#attr-rgx=
+
+# Bad variable names which should always be refused, separated by a comma.
+bad-names=foo,
+          bar,
+          baz,
+          toto,
+          tutu,
+          tata
+
+# Bad variable names regexes, separated by a comma. If names match any regex,
+# they will always be refused
+bad-names-rgxs=
+
+# Naming style matching correct class attribute names.
+class-attribute-naming-style=any
+
+# Regular expression matching correct class attribute names. Overrides class-
+# attribute-naming-style.
+#class-attribute-rgx=
+
+# Naming style matching correct class names.
+class-naming-style=PascalCase
+
+# Regular expression matching correct class names. Overrides class-naming-
+# style.
+#class-rgx=
+
+# Naming style matching correct constant names.
+const-naming-style=UPPER_CASE
+
+# Regular expression matching correct constant names. Overrides const-naming-
+# style.
+#const-rgx=
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+# Naming style matching correct function names.
+function-naming-style=snake_case
+
+# Regular expression matching correct function names. Overrides function-
+# naming-style.
+#function-rgx=
+
+# Good variable names which should always be accepted, separated by a comma.
+good-names=i,
+           j,
+           k,
+           ex,
+           Run,
+           _
+
+# Good variable names regexes, separated by a comma. If names match any regex,
+# they will always be accepted
+good-names-rgxs=
+
+# Include a hint for the correct naming format with invalid-name.
+include-naming-hint=no
+
+# Naming style matching correct inline iteration names.
+inlinevar-naming-style=any
+
+# Regular expression matching correct inline iteration names. Overrides
+# inlinevar-naming-style.
+#inlinevar-rgx=
+
+# Naming style matching correct method names.
+method-naming-style=snake_case
+
+# Regular expression matching correct method names. Overrides method-naming-
+# style.
+#method-rgx=
+
+# Naming style matching correct module names.
+module-naming-style=snake_case
+
+# Regular expression matching correct module names. Overrides module-naming-
+# style.
+#module-rgx=
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+# These decorators are taken in consideration only for invalid-name.
+property-classes=abc.abstractproperty
+
+# Naming style matching correct variable names.
+variable-naming-style=snake_case
+
+# Regular expression matching correct variable names. Overrides variable-
+# naming-style.
+#variable-rgx=
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method.
+max-args=5
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=12
+
+# Maximum number of boolean expressions in an if statement (see R0916).
+max-bool-expr=5
+
+# Maximum number of branch for function / method body.
+max-branches=12
+
+# Maximum number of locals for function / method body.
+max-locals=15
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of return / yield for function / method body.
+max-returns=6
+
+# Maximum number of statements in function / method body.
+max-statements=50
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,
+                      __new__,
+                      setUp,
+                      __post_init__
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,
+                  _fields,
+                  _replace,
+                  _source,
+                  _make
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=cls
+
+
+[IMPORTS]
+
+# List of modules that can be imported at any level, not just the top level
+# one.
+allow-any-import-level=
+
+# Allow wildcard imports from modules that define __all__.
+allow-wildcard-with-all=no
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+# Deprecated modules which should not be used, separated by a comma.
+deprecated-modules=optparse,tkinter.tix
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled).
+ext-import-graph=
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled).
+import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled).
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+# Couples of modules and preferred modules, separated by a comma.
+preferred-modules=
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "BaseException, Exception".
+overgeneral-exceptions=BaseException,
+                       Exception

.readthedocs.yml

@@ -16,6 +16,6 @@ python:
     - requirements: docs/requirements.txt
 
 # We need to list all the submodules included in documenation build by DOxygen
-submodules: 
+submodules:
   include:
-    - components/mqtt/esp-mqtt
+    - components/mqtt/esp-mqtt

CMakeLists.txt

@@ -20,7 +20,9 @@ if(NOT BOOTLOADER_BUILD)
 
     if(CONFIG_COMPILER_OPTIMIZATION_SIZE)
         list(APPEND compile_options "-Os")
-        list(APPEND compile_options "-freorder-blocks")
+        if(CMAKE_C_COMPILER_ID MATCHES "GNU")
+            list(APPEND compile_options "-freorder-blocks")
+        endif()
     elseif(CONFIG_COMPILER_OPTIMIZATION_DEFAULT)
         list(APPEND compile_options "-Og")
     elseif(CONFIG_COMPILER_OPTIMIZATION_NONE)
@@ -33,7 +35,9 @@ else()  # BOOTLOADER_BUILD
 
     if(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_SIZE)
         list(APPEND compile_options "-Os")
-        list(APPEND compile_options "-freorder-blocks")
+        if(CMAKE_C_COMPILER_ID MATCHES "GNU")
+            list(APPEND compile_options "-freorder-blocks")
+        endif()
     elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_DEBUG)
         list(APPEND compile_options "-Og")
     elseif(CONFIG_BOOTLOADER_COMPILER_OPTIMIZATION_NONE)
@@ -57,6 +61,10 @@ else()
     list(APPEND link_options "-fno-rtti")           # used to invoke correct multilib variant (no-rtti) during linking
 endif()
 
+if(CONFIG_COMPILER_SAVE_RESTORE_LIBCALLS)
+    list(APPEND compile_options "-msave-restore")
+endif()
+
 if(CONFIG_COMPILER_DISABLE_GCC8_WARNINGS)
     list(APPEND compile_options "-Wno-parentheses"
                                 "-Wno-sizeof-pointer-memaccess"
@@ -74,6 +82,52 @@ if(CONFIG_COMPILER_DISABLE_GCC8_WARNINGS)
                                 "-Wno-int-in-bool-context")
 endif()
 
+if(CMAKE_C_COMPILER_ID MATCHES "GNU")
+    list(APPEND c_compile_options "-Wno-old-style-declaration")
+endif()
+
+# Clang finds some warnings in IDF code which GCC doesn't.
+# All these warnings should be fixed before Clang is presented
+# as a toolchain choice for users.
+if(CMAKE_C_COMPILER_ID MATCHES "Clang")
+    # Clang checks Doxygen comments for being in sync with function prototype.
+    # There are some inconsistencies, especially in ROM headers.
+    list(APPEND compile_options "-Wno-documentation")
+    # GCC allows repeated typedefs when the source and target types are the same.
+    # Clang doesn't allow this. This occurs in many components due to forward
+    # declarations.
+    list(APPEND compile_options "-Wno-typedef-redefinition")
+    # This issue is seemingly related to newlib's char type functions.
+    # Fix is not clear yet.
+    list(APPEND compile_options "-Wno-char-subscripts")
+    # Clang seems to notice format string issues which GCC doesn't.
+    list(APPEND compile_options "-Wno-format-security")
+    # Logic bug in essl component
+    list(APPEND compile_options "-Wno-tautological-overlap-compare")
+    # Some pointer checks in mDNS component check addresses which can't be NULL
+    list(APPEND compile_options "-Wno-tautological-pointer-compare")
+    # Similar to the above, in tcp_transport
+    list(APPEND compile_options "-Wno-pointer-bool-conversion")
+    # mbedTLS md5.c triggers this warning in md5_test_buf (false positive)
+    list(APPEND compile_options "-Wno-string-concatenation")
+    # multiple cases of implict convertions between unrelated enum types
+    list(APPEND compile_options "-Wno-enum-conversion")
+    # When IRAM_ATTR is specified both in function declaration and definition,
+    # it produces different section names, since section names include __COUNTER__.
+    # Occurs in multiple places.
+    list(APPEND compile_options "-Wno-section")
+    # Multiple cases of attributes unknown to clang, for example
+    # __attribute__((optimize("-O3")))
+    list(APPEND compile_options "-Wno-unknown-attributes")
+    # Clang also produces many -Wunused-function warnings which GCC doesn't.
+    # However these aren't treated as errors.
+endif()
+# More warnings may exist in unit tests and example projects.
+
+if(CONFIG_COMPILER_WARN_WRITE_STRINGS)
+    list(APPEND compile_options "-Wwrite-strings")
+endif()
+
 if(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE)
     list(APPEND compile_definitions "-DNDEBUG")
 endif()
@@ -86,8 +140,44 @@ elseif(CONFIG_COMPILER_STACK_CHECK_MODE_ALL)
     list(APPEND compile_options "-fstack-protector-all")
 endif()
 
+if(CONFIG_COMPILER_DUMP_RTL_FILES)
+    list(APPEND compile_options "-fdump-rtl-expand")
+endif()
+
+if(NOT ${CMAKE_C_COMPILER_VERSION} VERSION_LESS 8.0.0)
+    if(CONFIG_COMPILER_HIDE_PATHS_MACROS)
+        list(APPEND compile_options "-fmacro-prefix-map=${CMAKE_SOURCE_DIR}=.")
+        list(APPEND compile_options "-fmacro-prefix-map=${IDF_PATH}=IDF")
+    endif()
+endif()
+
+# GCC-specific options
+if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+    list(APPEND compile_options "-fstrict-volatile-bitfields"
+                                "-Wno-error=unused-but-set-variable"
+                                )
+endif()
+
+if(CONFIG_ESP_SYSTEM_USE_EH_FRAME)
+  list(APPEND compile_options "-fasynchronous-unwind-tables")
+  list(APPEND link_options "-Wl,--eh-frame-hdr")
+endif()
+
 list(APPEND link_options "-fno-lto")
 
+# Placing jump tables in flash would cause issues with code that required
+# to be placed in IRAM
+list(APPEND compile_options "-fno-jump-tables")
+if(CMAKE_C_COMPILER_ID MATCHES "GNU")
+    # This flag is GCC-specific.
+    # Not clear yet if some other flag should be used for Clang.
+    list(APPEND compile_options "-fno-tree-switch-conversion")
+endif()
+
+if(CMAKE_C_COMPILER_ID MATCHES "LLVM")
+    list(APPEND compile_options "-fno-use-cxa-atexit")
+endif()
+
 idf_build_set_property(COMPILE_OPTIONS "${compile_options}" APPEND)
 idf_build_set_property(C_COMPILE_OPTIONS "${c_compile_options}" APPEND)
 idf_build_set_property(CXX_COMPILE_OPTIONS "${cxx_compile_options}" APPEND)

CONTRIBUTING.rst

@@ -6,7 +6,7 @@ We welcome contributions to the esp-idf project!
 How to Contribute
 -----------------
 
-Contributions to esp-idf - fixing bugs, adding features, adding documentation - are welcome. We accept contributions via `Github Pull Requests <https://help.github.com/articles/about-pull-requests/>`_.
+Contributions to esp-idf - fixing bugs, adding features, adding documentation - are welcome. We accept contributions via `Github Pull Requests <https://help.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests>`_.
 
 Before Contributing
 -------------------
@@ -17,6 +17,8 @@ Before sending us a Pull Request, please consider this list of points:
 
 * Does any new code conform to the esp-idf :doc:`Style Guide <style-guide>`?
 
+* Have you installed the :doc:`pre-commit hook <install-pre-commit-hook>` for esp-idf project?
+
 * Does the code documentation follow requirements in :doc:`documenting-code`?
 
 * Is the code adequately commented for people to understand how it is structured?
@@ -27,7 +29,7 @@ Before sending us a Pull Request, please consider this list of points:
 
 * Example contributions are also welcome. Please check the :doc:`creating-examples` guide for these.
 
-* If the contribution contains multiple commits, are they grouped together into logical changes (one major change per pull request)? Are any commits with names like "fixed typo" `squashed into previous commits <http://eli.thegreenplace.net/2014/02/19/squashing-github-pull-requests-into-a-single-commit/>`_?
+* If the contribution contains multiple commits, are they grouped together into logical changes (one major change per pull request)? Are any commits with names like "fixed typo" `squashed into previous commits <https://eli.thegreenplace.net/2014/02/19/squashing-github-pull-requests-into-a-single-commit/>`_?
 
 * If you're unsure about any of these points, please open the Pull Request anyhow and then ask us for feedback.
 
@@ -52,8 +54,8 @@ Related Documents
     :maxdepth: 1
 
     style-guide
+    install-pre-commit-hook
     documenting-code
-    add-ons-reference
     creating-examples
     ../api-reference/template
     contributor-agreement

Kconfig

@@ -11,6 +11,15 @@ mainmenu "Espressif IoT Development Framework Configuration"
     config IDF_ENV_FPGA
         # This option is for internal use only
         bool
+        option env="IDF_ENV_FPGA"
+
+    config IDF_TARGET_ARCH_RISCV
+        bool
+        default "n"
+
+    config IDF_TARGET_ARCH_XTENSA
+        bool
+        default "n"
 
     config IDF_TARGET
         # This option records the IDF target when sdkconfig is generated the first time.
@@ -23,24 +32,53 @@ mainmenu "Espressif IoT Development Framework Configuration"
     config IDF_TARGET_ESP32
         bool
         default "y" if IDF_TARGET="esp32"
+        select IDF_TARGET_ARCH_XTENSA
 
-    config IDF_TARGET_ESP32S2BETA
+    config IDF_TARGET_ESP32S2
         bool
-        default "y" if IDF_TARGET="esp32s2beta"
+        default "y" if IDF_TARGET="esp32s2"
         select FREERTOS_UNICORE
+        select IDF_TARGET_ARCH_XTENSA
+
+    config IDF_TARGET_ESP32S3
+        bool
+        default "y" if IDF_TARGET="esp32s3"
+        select IDF_TARGET_ARCH_XTENSA
+
+    config IDF_TARGET_ESP32C3
+        bool
+        default "y" if IDF_TARGET="esp32c3"
+        select FREERTOS_UNICORE
+        select IDF_TARGET_ARCH_RISCV
+
+    config IDF_TARGET_ESP32H2
+        bool
+        default "y" if IDF_TARGET="esp32h2"
+        select FREERTOS_UNICORE
+        select IDF_TARGET_ARCH_RISCV
+
+    config IDF_TARGET_LINUX
+        bool
+        default "y" if IDF_TARGET="linux"
 
     config IDF_FIRMWARE_CHIP_ID
         hex
         default 0x0000 if IDF_TARGET_ESP32
-        # note: S2 beta uses Chip ID 0 still, S2 will use 0x0002
-        default 0x0000 if IDF_TARGET_ESP32S2BETA
+        default 0x0002 if IDF_TARGET_ESP32S2
+        default 0x0005 if IDF_TARGET_ESP32C3
+        default 0x0009 if IDF_TARGET_ESP32S3
+        default 0x000A if IDF_TARGET_ESP32H2 # ESP32H2-TODO: IDF-3475
         default 0xFFFF
 
     menu "SDK tool configuration"
         config SDK_TOOLPREFIX
             string "Compiler toolchain path/prefix"
             default "xtensa-esp32-elf-" if IDF_TARGET_ESP32
-            default "xtensa-esp32s2-elf-" if IDF_TARGET_ESP32S2BETA
+            default "xtensa-esp32s2-elf-" if IDF_TARGET_ESP32S2
+            default "xtensa-esp32s3-elf-" if IDF_TARGET_ESP32S3
+            default "riscv32-esp-elf-" if IDF_TARGET_ESP32C3
+            default "riscv32-esp-elf-" if IDF_TARGET_ESP32H2
+
             help
                 The prefix/path that is used to call the toolchain. The default setting assumes
                 a crosstool-ng gcc setup that is in your PATH.
@@ -95,7 +133,7 @@ mainmenu "Espressif IoT Development Framework Configuration"
                 Select the way the application is built.
 
                 By default, the application is built as a binary file in a format compatible with
-                the ESP32 bootloader. In addition to this application, 2nd stage bootloader is
+                the ESP-IDF bootloader. In addition to this application, 2nd stage bootloader is
                 also built. Application and bootloader binaries can be written into flash and
                 loaded/executed from there.
 
@@ -107,7 +145,7 @@ mainmenu "Espressif IoT Development Framework Configuration"
                 written into flash.
                 Note that at the moment, ESP-IDF does not contain all the startup code required to
                 initialize the CPUs and ROM memory (data/bss). Therefore it is necessary to execute
-                a bit of ROM code prior to executing the application. A gdbinit file may look as follows:
+                a bit of ROM code prior to executing the application. A gdbinit file may look as follows (for ESP32):
 
                     # Connect to a running instance of OpenOCD
                     target remote :3333
@@ -127,6 +165,8 @@ mainmenu "Espressif IoT Development Framework Configuration"
 
                     xtensa-esp32-elf-gdb build/app-name.elf -x gdbinit
 
+                Example gdbinit files for other targets can be found in tools/test_apps/system/gdb_loadable_elf/
+
                 Recommended sdkconfig.defaults for building loadable ELF files is as follows.
                 CONFIG_APP_BUILD_TYPE_ELF_RAM is required, other options help reduce application
                 memory footprint.
@@ -134,8 +174,8 @@ mainmenu "Espressif IoT Development Framework Configuration"
                     CONFIG_APP_BUILD_TYPE_ELF_RAM=y
                     CONFIG_VFS_SUPPORT_TERMIOS=
                     CONFIG_NEWLIB_NANO_FORMAT=y
-                    CONFIG_ESP32_PANIC_PRINT_HALT=y
-                    CONFIG_ESP32_DEBUG_STUBS_ENABLE=
+                    CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+                    CONFIG_ESP_DEBUG_STUBS_ENABLE=
                     CONFIG_ESP_ERR_TO_NAME_LOOKUP=
 
 
@@ -238,6 +278,38 @@ mainmenu "Espressif IoT Development Framework Configuration"
 
         endchoice # assertions
 
+        config COMPILER_OPTIMIZATION_ASSERTION_LEVEL
+            int
+            default 0 if COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE
+            default 1 if COMPILER_OPTIMIZATION_ASSERTIONS_SILENT
+            default 2 if COMPILER_OPTIMIZATION_ASSERTIONS_ENABLE
+
+        config COMPILER_OPTIMIZATION_CHECKS_SILENT
+            bool "Disable messages in ESP_RETURN_ON_* and ESP_EXIT_ON_* macros"
+            default n
+            help
+                If enabled, the error messages will be discarded in following check macros:
+                - ESP_RETURN_ON_ERROR
+                - ESP_EXIT_ON_ERROR
+                - ESP_RETURN_ON_FALSE
+                - ESP_EXIT_ON_FALSE
+
+        menuconfig COMPILER_HIDE_PATHS_MACROS
+            bool "Replace ESP-IDF and project paths in binaries"
+            default y
+            depends on IDF_CMAKE
+            help
+                When expanding the __FILE__ and __BASE_FILE__ macros, replace paths inside ESP-IDF
+                with paths relative to the placeholder string "IDF", and convert paths inside the
+                project directory to relative paths.
+
+                This allows building the project with assertions or other code that embeds file paths,
+                without the binary containing the exact path to the IDF or project directories.
+
+                This option passes -fmacro-prefix-map options to the GCC command line. To replace additional
+                paths in your binaries, modify the project CMakeLists.txt file to pass custom -fmacro-prefix-map or
+                -ffile-prefix-map arguments.
+
         menuconfig COMPILER_CXX_EXCEPTIONS
             bool "Enable C++ exceptions"
             default n
@@ -290,6 +362,7 @@ mainmenu "Espressif IoT Development Framework Configuration"
 
                 - coverage: NORMAL < STRONG < OVERALL
 
+                The performance impact includes increasing the amount of stack memory required for each task.
 
             config COMPILER_STACK_CHECK_MODE_NONE
                 bool "None"
@@ -321,6 +394,18 @@ mainmenu "Espressif IoT Development Framework Configuration"
                 For C++, this warns about the deprecated conversion from string
                 literals to ``char *``.
 
+        config COMPILER_SAVE_RESTORE_LIBCALLS
+            bool "Enable -msave-restore flag to reduce code size"
+            depends on IDF_TARGET_ARCH_RISCV
+            help
+                Adds -msave-restore to C/C++ compilation flags.
+
+                When this flag is enabled, compiler will call library functions to
+                save/restore registers in function prologues/epilogues. This results
+                in lower overall code size, at the expense of slightly reduced performance.
+
+                This option can be enabled for RISC-V targets only.
+
         config COMPILER_DISABLE_GCC8_WARNINGS
             bool "Disable new warnings introduced in GCC 6 - 8"
             default "n"
@@ -328,6 +413,12 @@ mainmenu "Espressif IoT Development Framework Configuration"
                 Enable this option if using GCC 6 or newer, and wanting to disable warnings which don't appear with
                 GCC 5.
 
+        config COMPILER_DUMP_RTL_FILES
+            bool "Dump RTL files during compilation"
+            help
+                If enabled, RTL files will be produced during compilation. These files
+                can be used by other tools, for example to calculate call graphs.
+
 
     endmenu # Compiler Options
 

README.md

@@ -2,16 +2,32 @@
 
 * [中文版](./README_CN.md)
 
-ESP-IDF is the official development framework for the [ESP32](https://espressif.com/en/products/hardware/esp32/overview) chip provided for Windows, Linux and macOS.
+ESP-IDF is the development framework for Espressif SoCs supported on Windows, Linux and macOS.
+
+# ESP-IDF Release and SoC Compatibility
+
+The following table shows ESP-IDF support of Espressif SoCs where ![alt text][preview] and ![alt text][supported] denote preview status and support, respectively. In preview status the build is not yet enabled and some crucial parts could be missing (like documentation, datasheet). Please use an ESP-IDF release where the desired SoC is already supported.
+
+|Chip         |         v3.3           |          v4.0          |           v4.1         |          v4.2          |         v4.3           |          v4.4          |                                                            |
+|:----------- |:---------------------: | :---------------------:| :---------------------:| :---------------------:| :---------------------:| :---------------------:|:---------------------------------------------------------- |
+|ESP32        | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-S2     |                        |                        |                        | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-C3     |                        |                        |                        |                        | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-S3     |                        |                        |                        |                        | ![alt text][preview]   | ![alt text][supported] | [Announcement](https://www.espressif.com/en/news/ESP32_S3) |
+|ESP32-H2     |                        |                        |                        |                        |                        | ![alt text][preview]   | [Announcement](https://www.espressif.com/en/news/ESP32_H2) |
+
+[supported]: https://img.shields.io/badge/-supported-green "supported"
+[preview]: https://img.shields.io/badge/-preview-orange "preview"
+
+Espressif SoCs released before 2016 (ESP8266 and ESP8285) are supported by [RTOS SDK](https://github.com/espressif/ESP8266_RTOS_SDK) instead.
 
 # Developing With ESP-IDF
 
 ## Setting Up ESP-IDF
 
-See setup guides for detailed instructions to set up the ESP-IDF:
+See https://idf.espressif.com/ for links to detailed instructions on how to set up the ESP-IDF depending on chip you use.
 
-* [Getting Started Guide for the stable ESP-IDF version](https://docs.espressif.com/projects/esp-idf/en/stable/get-started/)
-* [Getting Started Guide for the latest (master branch) ESP-IDF version](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/)
+**Note:** Each SoC series and each ESP-IDF release has its own documentation. Please see Section [Versions](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/versions.html) on how to find documentation and how to checkout specific release of ESP-IDF.
 
 ### Non-GitHub forks
 
@@ -38,12 +54,13 @@ See the Getting Started guide links above for a detailed setup guide. This is a
 (See the Getting Started guide listed above for a full list of required steps with more details.)
 
 * Install host build dependencies mentioned in the Getting Started guide.
-* Run the install script to set up the build environment. The options include `install.bat` or `install.ps1` for Windows, and `install.sh` for Unix shells.
+* Run the install script to set up the build environment. The options include `install.bat` or `install.ps1` for Windows, and `install.sh` or `install.fish` for Unix shells.
 * Run the export script on Windows (`export.bat`) or source it on Unix (`source export.sh`) in every shell environment before using ESP-IDF.
 
 ## Configuring the Project
 
-`idf.py menuconfig` opens a text-based configuration menu where you can configure the project.
+* `idf.py set-target <chip_name>` sets the target of the project to `<chip_name>`. Run `idf.py set-target` without any arguments to see a list of supported targets.
+* `idf.py menuconfig` opens a text-based configuration menu where you can configure the project.
 
 ## Compiling the Project
 
@@ -65,7 +82,7 @@ You don't need to run `idf.py build` before running `idf.py flash`, `idf.py flas
 
 ## Viewing Serial Output
 
-The `idf.py monitor` target uses the [idf_monitor tool](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html) to display serial output from the ESP32. idf_monitor also has a range of features to decode crash output and interact with the device. [Check the documentation page for details](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html).
+The `idf.py monitor` target uses the [idf_monitor tool](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html) to display serial output from Espressif SoCs. idf_monitor also has a range of features to decode crash output and interact with the device. [Check the documentation page for details](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html).
 
 Exit the monitor by typing Ctrl-].
 
@@ -86,9 +103,9 @@ After the initial flash, you may just want to build and flash just your app, not
 
 ## Erasing Flash
 
-The `idf.py flash` target does not erase the entire flash contents. However it is sometimes useful to set the device back to a totally erased state, particularly when making partition table changes or OTA app updates. To erase the entire flash, run `idf.py erase_flash`.
+The `idf.py flash` target does not erase the entire flash contents. However it is sometimes useful to set the device back to a totally erased state, particularly when making partition table changes or OTA app updates. To erase the entire flash, run `idf.py erase-flash`.
 
-This can be combined with other targets, ie `idf.py -p PORT erase_flash flash` will erase everything and then re-flash the new app, bootloader and partition table.
+This can be combined with other targets, ie `idf.py -p PORT erase-flash flash` will erase everything and then re-flash the new app, bootloader and partition table.
 
 # Resources
 
@@ -99,5 +116,3 @@ This can be combined with other targets, ie `idf.py -p PORT erase_flash flash` w
 * [Check the Issues section on github](https://github.com/espressif/esp-idf/issues) if you find a bug or have a feature request. Please check existing Issues before opening a new one.
 
 * If you're interested in contributing to ESP-IDF, please check the [Contributions Guide](https://docs.espressif.com/projects/esp-idf/en/latest/contribute/index.html).
-
-

README_CN.md

@@ -2,23 +2,39 @@
 
 * [English Version](./README.md)
 
-[![Documentation Status](https://readthedocs.com/projects/espressif-esp-idf/badge/?version=latest)](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/?badge=latest)
+ESP-IDF 是乐鑫官方推出的物联网开发框架，支持 Windows、Linux 和 macOS 操作系统。
 
-ESP-IDF 是由乐鑫官方推出的针对 [ESP32](https://espressif.com/en/products/hardware/esp32/overview) 系列芯片的开发框架。
+# ESP-IDF 与乐鑫芯片
+
+下表总结了乐鑫芯片在 ESP-IDF 各版本中的支持状态，其中 ![alt text][supported] 代表已支持，![alt text][preview] 代表目前处于预览支持状态。在预览支持阶段，因为新芯片尚未完全添加到构建系统目录，所以一些重要的内容（如文档和技术规格书等）可能会缺失。请确保使用与芯片相匹配的 ESP-IDF 版本。
+
+|    芯片     |         v3.3           |          v4.0          |           v4.1         |          v4.2          |         v4.3           |          v4.4          |                                                            |
+|:----------- |:---------------------: | :---------------------:| :---------------------:| :---------------------:| :---------------------:| :---------------------:|:---------------------------------------------------------- |
+|ESP32        | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-S2     |                        |                        |                        | ![alt text][supported] | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-C3     |                        |                        |                        |                        | ![alt text][supported] | ![alt text][supported] |                                                            |
+|ESP32-S3     |                        |                        |                        |                        | ![alt text][preview]   | ![alt text][supported] | [芯片发布公告](https://www.espressif.com/en/news/ESP32_S3) |
+|ESP32-H2     |                        |                        |                        |                        |                        | ![alt text][preview]   | [芯片发布公告](https://www.espressif.com/en/news/ESP32_H2) |
+
+[supported]: https://img.shields.io/badge/-%E6%94%AF%E6%8C%81-green "supported"
+[preview]: https://img.shields.io/badge/-%E9%A2%84%E8%A7%88-orange "preview"
+
+对于 2016 年之前发布的乐鑫芯片（包括 ESP8266 和 ESP8285），请参考 [RTOS SDK](https://github.com/espressif/ESP8266_RTOS_SDK)。
 
 # 使用 ESP-IDF 进行开发
 
 ## 搭建 ESP-IDF 开发环境
 
-请参阅如下指南搭建 ESP-IDF 的开发环境：
+关于不同芯片如何搭建 ESP-IDF 的开发环境，请参考 https://idf.espressif.com/ 。
 
-* [ESP-IDF 稳定版本的入门指南](https://docs.espressif.com/projects/esp-idf/en/stable/get-started/)
-* [ESP-IDF 开发版本（master 分支）的入门指南](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/)
+**注意：** 不同系列芯片和不同 ESP-IDF 版本都有其对应的文档。请参阅[版本](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32/versions.html)部分，获得关于如何查找文档以及如何检出 ESP-IDF 的特定发行版的详细信息。
 
 ### 非 GitHub 分叉的 ESP-IDF 项目
 
 ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodules)），所以它们会指向 GitHub。
-如果 ESP-IDF 被分叉到的仓库不在 GitHub 上，那么你需要在克隆结束后运行该[脚本](tools/set-submodules-to-github.sh)。它会为所有的子模块设置绝对路径，接着可以通过 `git submodule update --init --recursive` 完成子模块的更新。
+如果 ESP-IDF 被分叉到的仓库不在 GitHub 上，那么你需要在克隆结束后运行该脚本 [tools/set-submodules-to-github.sh](tools/set-submodules-to-github.sh)。
+
+这个脚本会为所有的子模块设置绝对路径，接着可以通过 `git submodule update --init --recursive` 完成子模块的更新。
 如果 ESP-IDF 是从 GitHub 上克隆得到，则不需要此步骤。
 
 ## 寻找项目
@@ -35,24 +51,16 @@ ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodu
 
 ## 设置构建环境
 
-（请参考入门指南中列出的详细步骤。）
+请参考入门指南中列出的详细步骤。
+
 * 在主机中安装入门指南中提到的构建所依赖的工具。
-* 将 ESP-IDF 中的 `tools/` 目录加入 PATH 环境变量中。
-* 运行 `python -m pip install -r requirements.txt` 安装 Python 依赖库。
+* 运行安装脚本来设置构建环境。可为 Windows shell 选择 `install.bat` 或 `install.ps1`，为 Unix shell 选择 `install.sh` 和 `install.fish`。
+* 在使用 ESP-IDF 之前，需要在 shell 中运行导出脚本。Windows 下可运行 `export.bat`，Unix 下可运行 `source export.sh`。
 
 ## 配置项目
 
-`idf.py menuconfig`
-
-* 打开项目的文本配置菜单。
-* 使用上下键浏览菜单。
-* 使用回车键进入子菜单，退出键返回上一级菜单或者退出配置。
-* 输入 `?` 查看帮助界面，按下回车键可以退出帮助界面。
-* 使用空格键或者 `Y` 和 `N` 按键来启用和禁用带复选框“`[*]`”的配置项。
-* 高亮某个配置项的同时按下 `?` 键可以显示该选项的帮助文档。
-* 输入 `/` 可以搜索指定的配置项。
-
-一旦配置完成，请按下退出键多次以退出配置界面，当提示是否保存新的的配置时，选择 “Yes”。
+* `idf.py set-target <chip_name>` 可将项目的目标芯片设置为 `<chip_name>`。运行 `idf.py set-target`，不用带任何参数，可查看所有支持的目标芯片列表。
+* `idf.py menuconfig` 可打开一个基于文本的配置菜单，可以用来对项目进行配置。
 
 ## 编译项目
 
@@ -62,23 +70,23 @@ ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodu
 
 ## 烧写项目
 
-当构建结束，终端会打印出一条命令行，告知如何使用 esptool.py 工具烧写项目到芯片中。但是你还可以运行下面这条命令来自动烧写：
+当构建结束，终端会打印出一条命令行，告知如何使用 esptool.py 工具烧写项目到芯片中。但你也可以运行下面这条命令来自动烧写：
 
 `idf.py -p PORT flash`
 
-将其中的 PORT 替换为系统中实际串口的名字（比如 Windows 下的 `COM3`，Linux 下的 `/dev/ttyUSB0`，或者 MacOS 下的 `/dev/cu.usbserial-X`。如果省略 `-p` 选项，`idf.py flash` 会尝试使用第一个可用的串口进行烧写。
+将其中的 PORT 替换为系统中实际串口的名字（比如 Windows 下的 `COM3`，Linux 下的 `/dev/ttyUSB0`，或者 macOS 下的 `/dev/cu.usbserial-X`。如果省略 `-p` 选项，`idf.py flash` 会尝试使用第一个可用的串口进行烧写。
 
 这会烧写整个项目（包括应用程序，引导程序和分区表）到芯片中，此外还可以使用 `idf.py menuconfig` 来调整串口烧写相关的配置。
 
-你也不必先运行 `idf.py build`，再运行 `idf.py flash`，`idf.py flash` 会根据需要自动重新构建项目。
+不必先运行 `idf.py build` 再运行 `idf.py flash`，`idf.py flash` 会根据需要自动重新构建项目。
 
 ## 观察串口输入
 
-`idf.py monitor` 会调用 [idf_monitor 工具](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html)来显示 ESP32 的串口输出。`idf_monitor` 还包含一系列的功能来解析程序崩溃后的输出结果并与设备进行交互。更多详细内容，请参阅[文档](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html).
+`idf.py monitor` 会调用 [idf_monitor 工具](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html)来显示乐鑫芯片的串口输出。`idf_monitor` 还包含一系列的功能来解析程序崩溃后的输出结果并与设备进行交互。更多详细内容，请参阅[文档](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/idf-monitor.html).
 
 输入 `Ctrl-]` 可退出监视器。
 
-想要一次性执行构建，烧写和监视，可以运行如下命令：
+想要一次性执行构建、烧写和监视，可以运行如下命令：
 
 `idf.py flash monitor`
 
@@ -89,15 +97,15 @@ ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodu
 * `idf.py app` - 仅构建应用程序。
 * `idf.py app-flash` - 仅烧写应用程序。
 
-`idf.py app-flash` 会自动判断是否有源文件发生了改变而后重新构建应用程序。
+`idf.py app-flash` 会自动判断是否有源文件发生了改变然后重新构建应用程序。
 
 （在正常的开发中，即使引导程序和分区表没有发生变化，每次都重新烧写它们并不会带来什么危害。）
 
 ## 擦除 Flash
 
-`idf.py flash` 并不会擦除 Flash 上所有的内容，但是有时候我们需要设备恢复到完全擦除的状态，尤其是分区表发生了变化或者 OTA 应用升级。要擦除整块 Flash 请运行 `idf.py erase_flash`。
+`idf.py flash` 并不会擦除 flash 上所有的内容，但是有时候我们需要设备恢复到完全擦除的状态，尤其是分区表发生了变化或者 OTA 应用升级时。要擦除整块 flash 请运行 `idf.py erase-flash`。
 
-这条命令还可以和其余命令整合在一起，`idf.py -p PORT erase_flash flash` 会擦除一切然后重新烧写新的应用程序，引导程序和分区表。
+这条命令还可以和其余命令整合在一起，`idf.py -p PORT erase-flash flash` 会擦除一切然后重新烧写新的应用程序、引导程序和分区表。
 
 # 其它参考资源
 
@@ -105,8 +113,6 @@ ESP-IDF 中的子模块采用相对路径（[详见 .gitmodules 文件](.gitmodu
 
 * 可以前往 [esp32.com 论坛](https://esp32.com/) 提问，挖掘社区资源。
 
-* 如果你在使用中发现了错误或者需要新的功能，请先[查看 GitHub Issues](https://github.com/espressif/esp-idf/issues)，确保该问题不会被重复提交。
+* 如果你在使用中发现了错误或者需要新的功能，请先[查看 GitHub Issues](https://github.com/espressif/esp-idf/issues)，确保该问题没有重复提交。
 
 * 如果你有兴趣为 ESP-IDF 作贡献，请先阅读[贡献指南](https://docs.espressif.com/projects/esp-idf/en/latest/contribute/index.html)。
-
-

SUPPORT_POLICY.md

@@ -5,43 +5,53 @@ Support Period Policy
 
 * [中文版](./SUPPORT_POLICY_CN.md)
 
-Each ESP-IDF major and minor release (V4.0, V4.1, etc) is supported for
-18 months after the initial stable release date.
+Each ESP-IDF major and minor release (V4.1, V4.2, etc) is supported for
+30 months after the initial stable release date.
 
 Supported means that the ESP-IDF team will continue to apply bug fixes,
 security fixes, etc to the release branch on GitHub, and periodically
 make new bugfix releases as needed.
 
-Users are encouraged to upgrade to a newer ESP-IDF release before the
-support period finishes and the release becomes End of Life (EOL). It is
-our policy to not continue fixing bugs in End of Life releases.
+Support period is divided into "Service" and "Maintenance" period:
+
+| Period      | Duration     | Recommended for new projects?         |
+| -------     | ------------ | ------------------------------------- |
+| Service     | 12 months    | Yes                                   |
+| Maintenance | 18 months    | No                                    |
+
+During the Service period, bugfixes releases are more frequent. In some cases,
+support for new features may be added during the Service period (this is
+reserved for features which are needed to meet particular regulatory
+requirements or standards for new products, and which carry a very low risk of
+introducing regressions.)
+
+During the Maintenance period, the version is still supported but only bugfixes
+for high severity issues or security issues will be applied.
+
+Using an “In Service” version is recommended when starting a new project.
+
+Users are encouraged to upgrade all projects to a newer ESP-IDF release before
+the support period finishes and the release becomes End of Life (EOL). It is our
+policy to not continue fixing bugs in End of Life releases.
 
 Pre-release versions (betas, previews, `-rc` and `-dev` versions, etc)
 are not covered by any support period. Sometimes a particular feature is
-marked as \"Preview\" in a release, which means it is also not covered
+marked as "Preview" in a release, which means it is also not covered
 by the support period.
 
+ESP-IDF should be used in an up-to-date software environment. The operating system
+and other third-party tools should be supported by their maintainers.
+ESP-IDF cannot keep compatibility with unsupported third-party tools.
+
 The ESP-IDF Programming Guide has information about the
 [different versions of ESP-IDF](https://docs.espressif.com/projects/esp-idf/en/latest/versions.html)
 (major, minor, bugfix, etc).
 
-Long Term Support releases
---------------------------
-
-Some releases (starting with ESP-IDF V3.3) are designated Long Term
-Support (LTS). LTS releases are supported for 30 months (2.5 years)
-after the initial stable release date.
-
-A new LTS release will be made at least every 18 months. This means
-there will always be a period of at least 12 months to upgrade from the
-previous LTS release to the following LTS release.
-
 Example
 -------
 
-ESP-IDF V3.3 was released in September 2019 and is a Long Term Support
-(LTS) release, meaning it will be supported for 30 months until February
-2022.
+ESP-IDF V3.3 was released in September 2019. It will be supported for 30 months
+until February 2022.
 
 - The first V3.3 release was `v3.3` in September 2019.
 - The ESP-IDF team continues to backport bug fixes, security fixes,
@@ -55,14 +65,22 @@ ESP-IDF V3.3 was released in September 2019 and is a Long Term Support
 Existing Releases
 -----------------
 
-ESP-IDF release V3.3 and all newer releases will follow this support
-period policy.  The support period for each release will be announced
-when the release is made.
+ESP-IDF release V4.1 and all newer releases will follow this support period
+policy. The support period for each release will be announced when the release
+is made.
 
-For releases made before the support period policy was announced,
-the following support periods apply:
+For releases made before the current support period policy was announced, the
+original support periods apply:
 
-- ESP-IDF V3.1.x and V3.2.x will both be supported until October 2020.
-- ESP-IDF V3.0.9 (planned for October 2019) will be the last V3.0
-  bugfix release. ESP-IDF V3.0.x is End of Life from October 2019.
-- ESP-IDF versions before V3.0 are already End of Life.
+* ESP-IDF V4.0.x will be supported until October 2021
+* ESP-IDF V3.3.x will be supported until February 2022
+* ESP-IDF versions before V3.3 are already End of Life.
+
+Policy History
+--------------
+
+* September 2019. This policy split ESP-IDF releases into Standard and Long Term
+  Support.
+* July 2020. All releases from now will have the same support period, which is
+  equal to the previous Long Term Support period. Added “In Service” period,
+  during which versions will receive more updates.

SUPPORT_POLICY_CN.md

@@ -1,43 +1,55 @@
-有关 ESP-IDF 的最新支持政策，详见 [支持期限政策](./SUPPORT_POLICY_CN.md)。
+有关 ESP-IDF 的最新支持政策，详见 [支持期限政策](https://github.com/espressif/esp-idf/blob/master/SUPPORT_POLICY_CN.md)
+
 支持期限政策
-=================
+=====================
 
-* [English Version](./SUPPORT_POLICY.md)
+ESP-IDF 的每个主要版本和次要版本（如 V4.1、V4.2 等）自其首次稳定版本发布之日起将支持 30 个月。
 
-ESP-IDF 的每个主要版本和次要版本（如 V4.0、V4.1 等）自其首次稳定版本发布之日起将维护 18 个月。
+支持意味着 ESP-IDF 团队将会对 GitHub 上的发布分支继续进行 bug 修复、安全修补等，并根据需求定期发布新的 bugfix 版本。
 
-维护意味着 ESP-IDF 团队将会对 GitHub 上的发布分支继续进行 bug 修复、安全修补等，并根据需求定期发布新的 bugfix 版本。
+支持周期包括“服务周期“和“维护周期”：
 
-在某一版本支持期限结束，停止更新维护 (EOL) 前，建议用户升级到较新的 ESP-IDF 版本。根据《支持期限政策》，我们将停止对 EOL 版本进行 bug 修复。
+| 周期      | 期限     | 是否建议新项目使用？         |
+| -------     | ------------ | ------------------------------------- |
+| 服务周期     | 12 个月    | 是                                   |
+| 维护周期 | 18 个月    | 否                                    |
 
-《支持期限政策》不适用于预发布版本（包括 beta、preview、`-rc` 和 `-dev` 版本等）。有时，在发布的版本中存在被标记为 "Preview" 的特定功能，则该功能也不在支持期限内。
+在版本的服务周期内，bug 修复版本会较为频繁发布。某些情况下，版本在其服务周期内可能会增加对新功能的支持（这仅适用于需要达到新产品特定规管标准或要求的功能，并且引入新问题的风险极低。）
 
-有关 [ ESP-IDF 不同版本](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/versions.html)（主要版本、次要版本、bugfix 版本等）信息，可参阅《ESP-IDF 编程指南》。
+在版本的维护周期内，版本仍然会继续支持，但仅会对严重问题或安全问题进行 bug 修复。
 
-长期支持版本
-------------
+建议在开始新项目的时候使用处于服务周期的版本。 
 
-有些发布版本（从 ESP-IDF V3.3 开始）属于长期支持 (LTS) 版本。LTS 版本将自其首次稳定版本发布之日起维护 30 个月（2.5 年）。
+在某一版本支持期限结束，停止更新维护 (EOL) 前，建议用户升级所有项目至较新的 ESP-IDF 版本。根据《支持期限政策》，我们将停止对 EOL 版本进行 bug 修复。
 
-我们将至少每 18 个月发布一个新的 LTS 版本。这意味着将至少有 12 个月的期限可更新至下一个 LTS 版本。
+《支持期限政策》不适用于预发布版本（包括 beta、preview、-rc 和 -dev 版本等）。有时，在发布的版本中存在被标记为 "Preview" 的特定功能，则该功能也不在支持期限内。
+
+有关 [ESP-IDF 不同版本](https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32/versions.html)（主要版本、次要版本、bugfix 版本等）信息，可参阅《ESP-IDF 编程指南》。
 
 示例
------
+-------
 
-ESP-IDF V3.3 于 2019 年 9 月发布，属于 LTS 版本，将维护 30 个月至 2022 年 2 月停止。
+ESP-IDF V3.3 于 2019 年 9 月发布，将支持 30 个月至 2022 年 2 月停止。
 
-- V3.3 的首个发布版本为 2019 年 9 月发布的 `v3.3`。
-- ESP-IDF 团队将持续进行 bug 修复、安全修补等更新，并 backport 至分支 `release/v3.3`。
-- 定期从 release 分支创建稳定的 bugfix 版本，比如，`v3.3.1`、`v3.3.2` 等，并建议用户保持使用最新的 bugfix 版本。
+- V3.3 的首个发布版本为 2019 年 9 月发布的 v3.3。
+- ESP-IDF 团队将持续进行 bug 修复、安全修补等更新，并 backport 至分支 release/v3.3。
+- 定期从 release 分支创建稳定的 bugfix 版本，比如，v3.3.1、v3.3.2 等，并建议用户保持使用最新的 bugfix 版本。
 - V3.3 的 bugfix 版本发布将持续至 2022 年 2 月，届时所有 V3.3.x 将停止更新维护。
 
 现有版本
---------
+-----------------
 
-ESP-IDF V3.3 及所有后续更新版本都将遵守该《支持期限政策》。每一版本发布时将同时公布其支持期限。
+ESP-IDF V4.1 及所有后续更新版本都将遵守该《支持期限政策》。每一版本发布时将同时公布其支持期限。
 
 对于该政策公布之日前发布的版本，应适用下述支持期限：
 
-- ESP-IDF V3.1.x 和 V3.2.x 将维护至 2020 年 10 月。
-- ESP-IDF V3.0.9（计划 2019 年 10 月发布）将是 V3.0 的最后一个 bugfix 版本。ESP-IDF V3.0.x 自 2019 年 10 月起停止更新维护 (EOL)。
-- ESP-IDF 中 V3.0 之前的版本均已停止更新维护 (EOL)。
+* ESP-IDF V4.0.x 将支持至 2021 年 10 月。
+* ESP-IDF V3.3.x 将支持至 2022 年 2 月。
+* ESP-IDF V3.1.x 和 V3.2.x 都将在 2020 年 10 月停止支持。
+* ESP-IDF v3.1.x 之前的版本已经停止支持。
+  
+政策历史
+--------------
+
+* 2019 年 9 月。该政策将 ESP-IDF 版本发布分为标准支持版本和长期支持版本。 
+* 2020 年 7 月。从现在开始，所有发布的版本都将有相同的支持周期，等同于之前的长期支持周期。新增了”服务周期“，期间版本的更新将较为频繁。

add_path.sh

@@ -16,5 +16,3 @@ else
 	export PATH="${IDF_ADD_PATHS_EXTRAS}:${PATH}"
 	echo "Added to PATH: ${IDF_ADD_PATHS_EXTRAS}"
 fi
-
-

components/README.md

@@ -0,0 +1,160 @@
+# Core Components
+
+## Overview
+
+This document contains details about what the core components are, what they contain, and how they are organized.
+
+## Organization
+
+The core components are organized into two groups.
+
+The first group (referred to as `G0` from now on) contains `hal`, `xtensa` and `riscv` (referred to as `arch` components from now on), `esp_rom`, `esp_common`, and `soc`. This
+group contain information about and low-level access to underlying hardware; or in the case of `esp_common`, hardware-agnostic code and utilities.
+These components can depend on each other, but as much as possible have no dependencies outside the group. The reason for this is that, due to the
+nature of what these components contain, the likelihood is high that a lot of other components will require these. Ideally, then, the dependency
+relationship only goes one way. This makes it easier for these components, as a group, to be usable in another project. One can conceivably implement
+a competing SDK to ESP-IDF on top of these components.
+
+The second group (referred to as `G1` from now on) sits at a higher level than the first group. This group contains the components `esp_hw_support`, `esp_system`, `newlib`, `spi_flash`,
+`freertos`, `log`, and `heap`. Like the first group, circular dependencies within the group are allowed; and being at a higher level, dependency on the first group
+is allowed. These components represent software mechanisms essential to building other components.
+
+## Descriptions
+
+The following is a short description of the components mentioned above.
+
+### `G0` Components
+
+#### `hal`
+
+Contains the hardware abstraction layer and low-level operation implementations for the various peripherals. The low-level functions assign meaningful names to register-level manipulations; the hardware abstraction provide operations one level above this, grouping these low-level functions
+into routines that achieve a meaningful action or state of the peripheral.
+
+Example:
+
+- `spi_flash_ll_set_address` is a low-level function part of the hardware abstraction `spi_flash_hal_read_block`
+
+#### `arch`
+
+Contains low-level architecture operations and definitions, including those for customizations (can be thought of on the same level as the low-level functions of `hal`).
+This can also contain files provided by the architecture vendor.
+
+Example:
+
+- `xt_set_exception_handler`
+- `riscv_global_interrupts_enable`
+- `ERI_PERFMON_MAX`
+
+#### `esp_common`
+
+Contains hardware-agnostic definitions, constants, macros, utilities, 'pure' and/or algorithmic functions that is useable by all other components (that is, barring there being a more appropriate component to put them in).
+
+Example:
+
+- `BIT(nr)` and other bit manipulation utilities in the future
+- `IDF_DEPRECATED(REASON)`
+- `ESP_IDF_VERSION_MAJOR`
+
+#### `soc`
+
+Contains description of the underlying hardware: register structure, addresses, pins, capabilities, etc.
+
+Example:
+
+- `DR_REG_DPORT_BASE`
+- `SOC_MCPWM_SUPPORTED`
+- `uart_dev_s`
+
+#### `esp_rom`
+
+Contains headers, linker scripts, abstraction layer, patches, and other related files to ROM functions.
+
+Example:
+
+- `esp32.rom.eco3.ld`
+- `rom/aes.h`
+
+### `G1` Components
+
+#### `spi_flash`
+
+SPI flash device access implementation.
+
+#### `freertos`
+
+FreeRTOS port to targets supported by ESP-IDF.
+
+#### `log`
+
+Logging library.
+
+#### `heap`
+
+Heap implementation.
+
+#### `newlib`
+
+Some functions n the standard library are implemented here, especially those needing other `G1` components.
+
+Example:
+
+- `malloc` is implemented in terms of the component `heap`'s functions
+- `gettimeofday` is implemented in terms of system time in `esp_system`
+
+#### `esp_system`
+
+Contains implementation of system services and controls system behavior. The implementations
+here may take hardware resources and/or decide on a hardware state needed for support of a system service/feature/mechanism.
+Currently, this encompasses the following, but not limited to:
+
+- Startup and initialization
+- Panic and debug
+- Reset and reset reason
+- Task and interrupt watchdogs
+
+#### `esp_hw_support`
+
+Contains implementations that provide hardware operations, arbitration, or resource sharing, especially those that
+is used in the system. Unlike `esp_system`, implementations here do not decide on a hardware state or takes hardware resource, acting
+merely as facilitator to hardware access. Currently, this encompasses the following, but not limited to:
+
+- Interrupt allocation
+- Sleep functions
+- Memory functions (external SPIRAM, async memory, etc.)
+- Clock and clock control
+- Random generation
+- CPU utilities
+- MAC settings
+
+### `esp_hw_support` vs `esp_system`
+
+This section details list some implementations and the reason for placing it in either `esp_hw_support` or `esp_system`.
+
+#### `task_wdt.c` (`esp_system`) vs  `intr_alloc.c` (`esp_hw_support`)
+
+The task watchdog fits the definition of taking and configuring hardware resources (wdt, interrupt) for implementation of a system service/mechanism.
+
+This is in contrast with interrupt allocation that merely facilitates access to the underlying hardware for other implementations -
+drivers, user code, and even the task watchdog mentioned previously!
+
+#### `crosscore_int.c` (`esp_system`)
+
+The current implementation of crosscore interrupts is tightly coupled with a number of interrupt reasons
+associated with system services/mechanisms: REASON_YIELD (scheduler), REASON_FREQ_SWITCH (power management)
+REASON_PRINT_BACKTRACE (panic and debug).
+
+However, if an implementation exists that makes it possible to register an arbitrary interrupt reason - a
+lower level inter-processor call if you will, then this implementation is a good candidate for `esp_hw_support`.
+The current implementation in `esp_system` can then just register the interrupt reasons mentioned above.
+
+#### `esp_mac.h`, `esp_chip_info.h`, `esp_random.h` (`esp_hw_support`)
+
+The functions in these headers used to be in `esp_system.h`, but have been split-off.
+However, to maintain backward compatibility, `esp_system.h` includes these headers.
+
+The remaining functions in `esp_system.h` are those that deal with system behavior, such
+as `esp_register_shutdown_handler`, or are proxy for other system components's APIs such as
+`esp_get_free_heap_size`.
+
+The functions split-off from `esp_system.h` are much more hardware manipulation oriented such as:
+`esp_read_mac`, `esp_random` and `esp_chip_info`.

components/app_trace/CMakeLists.txt

@@ -1,4 +1,4 @@
-set(srcs 
+set(srcs
     "app_trace.c"
     "app_trace_util.c"
     "host_file_io.c"
@@ -6,17 +6,33 @@ set(srcs
 
 set(include_dirs "include")
 
-if(CONFIG_SYSVIEW_ENABLE)
+set(priv_include_dirs "private_include" "port/include")
+
+if(CONFIG_APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE)
+    list(APPEND srcs
+        "app_trace_membufs_proto.c")
+
+    if(CONFIG_IDF_TARGET_ARCH_XTENSA)
+        list(APPEND srcs
+            "port/xtensa/port.c")
+    endif()
+    if(CONFIG_IDF_TARGET_ARCH_RISCV)
+        list(APPEND srcs
+            "port/riscv/port.c")
+    endif()
+endif()
+
+if(CONFIG_APPTRACE_SV_ENABLE)
     list(APPEND include_dirs
         sys_view/Config
         sys_view/SEGGER
         sys_view/Sample/OS)
 
-    list(APPEND srcs 
+    list(APPEND srcs
         "sys_view/SEGGER/SEGGER_SYSVIEW.c"
         "sys_view/Sample/Config/SEGGER_SYSVIEW_Config_FreeRTOS.c"
         "sys_view/Sample/OS/SEGGER_SYSVIEW_FreeRTOS.c"
-        "sys_view/esp32/SEGGER_RTT_esp32.c"
+        "sys_view/esp/SEGGER_RTT_esp.c"
         "sys_view/ext/heap_trace_module.c"
         "sys_view/ext/logging.c")
 endif()
@@ -30,17 +46,14 @@ endif()
 
 idf_component_register(SRCS "${srcs}"
                        INCLUDE_DIRS "${include_dirs}"
-                       PRIV_REQUIRES soc esp_common
+                       PRIV_INCLUDE_DIRS "${priv_include_dirs}"
+                       PRIV_REQUIRES soc esp_ipc
                        LDFRAGMENTS linker.lf)
 
+# disable --coverage for this component, as it is used as transport
+# for gcov
+target_compile_options(${COMPONENT_LIB} PRIVATE "-fno-profile-arcs" "-fno-test-coverage")
 
-if(CONFIG_APPTRACE_GCOV_ENABLE)
-    # disable --coverage for this component, as it is used as transport
-    # for gcov
-    target_compile_options(${COMPONENT_LIB} PRIVATE "-fno-profile-arcs" "-fno-test-coverage")
-
-    # Force app_trace to also appear later than gcov in link line
-    idf_component_get_property(app_trace app_trace COMPONENT_LIB)
-    target_link_libraries(${COMPONENT_LIB} INTERFACE
-        "-Wl,--undefined=gcov_rtio_atexit" $<TARGET_FILE:${app_trace}> gcov $<TARGET_FILE:${app_trace}> c)
-endif()
+# Force app_trace to also appear later than gcov in link line
+idf_component_get_property(app_trace app_trace COMPONENT_LIB)
+target_link_libraries(${COMPONENT_LIB} INTERFACE $<TARGET_FILE:${app_trace}> gcov $<TARGET_FILE:${app_trace}> c)

components/app_trace/Kconfig

@@ -4,29 +4,44 @@ menu "Application Level Tracing"
         prompt "Data Destination"
         default APPTRACE_DEST_NONE
         help
-            Select destination for application trace: trace memory or none (to disable).
+            Select destination for application trace: JTAG or none (to disable).
 
-        config APPTRACE_DEST_TRAX
-            bool "Trace memory"
+        config APPTRACE_DEST_JTAG
+            bool "JTAG"
+            select APPTRACE_DEST_TRAX if IDF_TARGET_ARCH_XTENSA
+            select APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE
             select APPTRACE_ENABLE
+
         config APPTRACE_DEST_NONE
             bool "None"
     endchoice
 
-    config APPTRACE_ENABLE
+    config APPTRACE_DEST_TRAX
         bool
-        depends on !ESP32_TRAX && !ESP32S2_TRAX
+        depends on IDF_TARGET_ARCH_XTENSA && !ESP32_TRAX && !ESP32S2_TRAX
         select ESP32_MEMMAP_TRACEMEM
         select ESP32S2_MEMMAP_TRACEMEM
         select ESP32_MEMMAP_TRACEMEM_TWOBANKS
         select ESP32S2_MEMMAP_TRACEMEM_TWOBANKS
         default n
+        help
+            Enables/disable TRAX tracing HW.
+
+    config APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE
+        bool
+        default n
+        help
+            Enables/disable swapping memory buffers tracing protocol.
+
+    config APPTRACE_ENABLE
+        bool
+        default n
         help
             Enables/disable application tracing module.
 
     config APPTRACE_LOCK_ENABLE
         bool
-        default !SYSVIEW_ENABLE
+        default !APPTRACE_SV_ENABLE
         help
             Enables/disable application tracing module internal sync lock.
 
@@ -41,16 +56,23 @@ menu "Application Level Tracing"
 
     config APPTRACE_POSTMORTEM_FLUSH_THRESH
         int "Threshold for flushing last trace data to host on panic"
-        depends on APPTRACE_DEST_TRAX
+        depends on APPTRACE_ENABLE
         range 0 16384
         default 0
         help
             Threshold for flushing last trace data to host on panic in post-mortem mode.
             This is minimal amount of data needed to perform flush. In bytes.
 
+    config APPTRACE_BUF_SIZE
+        int "Size of the apptrace buffer"
+        depends on APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE && !APPTRACE_DEST_TRAX
+        default 16384
+        help
+            Size of the memory buffer for trace data in bytes.
+
     config APPTRACE_PENDING_DATA_SIZE_MAX
         int "Size of the pending data buffer"
-        depends on APPTRACE_DEST_TRAX
+        depends on APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE
         default 0
         help
             Size of the buffer for events in bytes. It is useful for buffering events from
@@ -59,151 +81,151 @@ menu "Application Level Tracing"
 
     menu "FreeRTOS SystemView Tracing"
         depends on APPTRACE_ENABLE
-        config SYSVIEW_ENABLE
+        config APPTRACE_SV_ENABLE
             bool "SystemView Tracing Enable"
             depends on APPTRACE_ENABLE
             default n
             help
                 Enables supporrt for SEGGER SystemView tracing functionality.
 
-        choice SYSVIEW_TS_SOURCE
+        choice APPTRACE_SV_TS_SOURCE
             prompt "Timer to use as timestamp source"
-            depends on SYSVIEW_ENABLE
-            default SYSVIEW_TS_SOURCE_CCOUNT if FREERTOS_UNICORE && !PM_ENABLE
-            default SYSVIEW_TS_SOURCE_TIMER_00 if !FREERTOS_UNICORE && !PM_ENABLE
-            default SYSVIEW_TS_SOURCE_ESP_TIMER if PM_ENABLE
+            depends on APPTRACE_SV_ENABLE
+            default APPTRACE_SV_TS_SOURCE_CCOUNT if FREERTOS_UNICORE && !PM_ENABLE && !IDF_TARGET_ESP32C3
+            default APPTRACE_SV_TS_SOURCE_TIMER_00 if !FREERTOS_UNICORE && !PM_ENABLE && !IDF_TARGET_ESP32C3
+            default APPTRACE_SV_TS_SOURCE_ESP_TIMER if PM_ENABLE || IDF_TARGET_ESP32C3
             help
                 SystemView needs to use a hardware timer as the source of timestamps
                 when tracing. This option selects the timer for it.
 
-            config SYSVIEW_TS_SOURCE_CCOUNT
+            config APPTRACE_SV_TS_SOURCE_CCOUNT
                 bool "CPU cycle counter (CCOUNT)"
-                depends on FREERTOS_UNICORE && !PM_ENABLE
+                depends on FREERTOS_UNICORE && !PM_ENABLE && !IDF_TARGET_ESP32C3
 
-            config SYSVIEW_TS_SOURCE_TIMER_00
+            config APPTRACE_SV_TS_SOURCE_TIMER_00
                 bool "Timer 0, Group 0"
-                depends on !PM_ENABLE
+                depends on !PM_ENABLE && !IDF_TARGET_ESP32C3
 
-            config SYSVIEW_TS_SOURCE_TIMER_01
+            config APPTRACE_SV_TS_SOURCE_TIMER_01
                 bool "Timer 1, Group 0"
-                depends on !PM_ENABLE
+                depends on !PM_ENABLE && !IDF_TARGET_ESP32C3
 
-            config SYSVIEW_TS_SOURCE_TIMER_10
+            config APPTRACE_SV_TS_SOURCE_TIMER_10
                 bool "Timer 0, Group 1"
-                depends on !PM_ENABLE
+                depends on !PM_ENABLE && !IDF_TARGET_ESP32C3
 
-            config SYSVIEW_TS_SOURCE_TIMER_11
+            config APPTRACE_SV_TS_SOURCE_TIMER_11
                 bool "Timer 1, Group 1"
-                depends on !PM_ENABLE
+                depends on !PM_ENABLE && !IDF_TARGET_ESP32C3
 
-            config SYSVIEW_TS_SOURCE_ESP_TIMER
+            config APPTRACE_SV_TS_SOURCE_ESP_TIMER
                 bool "esp_timer high resolution timer"
 
         endchoice
 
-        config SYSVIEW_MAX_TASKS
+        config APPTRACE_SV_MAX_TASKS
             int "Maximum supported tasks"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             range 1 64
             default 16
             help
                 Configures maximum supported tasks in sysview debug
 
-        config SYSVIEW_BUF_WAIT_TMO
+        config APPTRACE_SV_BUF_WAIT_TMO
             int "Trace buffer wait timeout"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default 500
             help
                 Configures timeout (in us) to wait for free space in trace buffer.
                 Set to -1 to wait forever and avoid lost events.
 
-        config SYSVIEW_EVT_OVERFLOW_ENABLE
+        config APPTRACE_SV_EVT_OVERFLOW_ENABLE
             bool "Trace Buffer Overflow Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Trace Buffer Overflow" event.
 
-        config SYSVIEW_EVT_ISR_ENTER_ENABLE
+        config APPTRACE_SV_EVT_ISR_ENTER_ENABLE
             bool "ISR Enter Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "ISR Enter" event.
 
-        config SYSVIEW_EVT_ISR_EXIT_ENABLE
+        config APPTRACE_SV_EVT_ISR_EXIT_ENABLE
             bool "ISR Exit Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "ISR Exit" event.
 
-        config SYSVIEW_EVT_ISR_TO_SCHEDULER_ENABLE
+        config APPTRACE_SV_EVT_ISR_TO_SCHED_ENABLE
             bool "ISR Exit to Scheduler Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "ISR to Scheduler" event.
 
-        config SYSVIEW_EVT_TASK_START_EXEC_ENABLE
+        config APPTRACE_SV_EVT_TASK_START_EXEC_ENABLE
             bool "Task Start Execution Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Start Execution" event.
 
-        config SYSVIEW_EVT_TASK_STOP_EXEC_ENABLE
+        config APPTRACE_SV_EVT_TASK_STOP_EXEC_ENABLE
             bool "Task Stop Execution Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Stop Execution" event.
 
-        config SYSVIEW_EVT_TASK_START_READY_ENABLE
+        config APPTRACE_SV_EVT_TASK_START_READY_ENABLE
             bool "Task Start Ready State Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Start Ready State" event.
 
-        config SYSVIEW_EVT_TASK_STOP_READY_ENABLE
+        config APPTRACE_SV_EVT_TASK_STOP_READY_ENABLE
             bool "Task Stop Ready State Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Stop Ready State" event.
 
-        config SYSVIEW_EVT_TASK_CREATE_ENABLE
+        config APPTRACE_SV_EVT_TASK_CREATE_ENABLE
             bool "Task Create Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Create" event.
 
-        config SYSVIEW_EVT_TASK_TERMINATE_ENABLE
+        config APPTRACE_SV_EVT_TASK_TERMINATE_ENABLE
             bool "Task Terminate Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Task Terminate" event.
 
-        config SYSVIEW_EVT_IDLE_ENABLE
+        config APPTRACE_SV_EVT_IDLE_ENABLE
             bool "System Idle Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "System Idle" event.
 
-        config SYSVIEW_EVT_TIMER_ENTER_ENABLE
+        config APPTRACE_SV_EVT_TIMER_ENTER_ENABLE
             bool "Timer Enter Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Timer Enter" event.
 
-        config SYSVIEW_EVT_TIMER_EXIT_ENABLE
+        config APPTRACE_SV_EVT_TIMER_EXIT_ENABLE
             bool "Timer Exit Event"
-            depends on SYSVIEW_ENABLE
+            depends on APPTRACE_SV_ENABLE
             default y
             help
                 Enables "Timer Exit" event.
@@ -212,7 +234,7 @@ menu "Application Level Tracing"
 
     config APPTRACE_GCOV_ENABLE
         bool "GCOV to Host Enable"
-        depends on APPTRACE_ENABLE && !SYSVIEW_ENABLE
+        depends on APPTRACE_ENABLE && !APPTRACE_SV_ENABLE
         select ESP_DEBUG_STUBS_ENABLE
         default n
         help

components/app_trace/app_trace_membufs_proto.c

@@ -0,0 +1,364 @@
+#include <sys/param.h>
+#include <string.h>
+#include "sdkconfig.h"
+#include "esp_log.h"
+#include "esp_app_trace_membufs_proto.h"
+
+/** Trace data header. Every user data chunk is prepended with this header.
+ * User allocates block with esp_apptrace_buffer_get and then fills it with data,
+ * in multithreading environment it can happen that tasks gets buffer and then gets interrupted,
+ * so it is possible that user data are incomplete when  memory block is exposed to the host.
+ * In this case host SW will see that wr_sz < block_sz and will report error.
+ */
+typedef struct {
+#if CONFIG_APPTRACE_SV_ENABLE
+    uint8_t   block_sz; // size of allocated block for user data
+    uint8_t   wr_sz;    // size of actually written data
+#else
+    uint16_t   block_sz; // size of allocated block for user data
+    uint16_t   wr_sz;    // size of actually written data
+#endif
+} esp_tracedata_hdr_t;
+
+/** TODO: docs
+ */
+typedef struct {
+    uint16_t   block_sz; // size of allocated block for user data
+} esp_hostdata_hdr_t;
+
+#if CONFIG_APPTRACE_SV_ENABLE
+#define ESP_APPTRACE_USR_BLOCK_CORE(_cid_)          (0)
+#define ESP_APPTRACE_USR_BLOCK_LEN(_v_)             (_v_)
+#define ESP_APPTRACE_USR_DATA_LEN_MAX(_hw_data_)    255UL
+#else
+#define ESP_APPTRACE_USR_BLOCK_CORE(_cid_)      ((_cid_) << 15)
+#define ESP_APPTRACE_USR_BLOCK_LEN(_v_)         (~(1 << 15) & (_v_))
+#define ESP_APPTRACE_USR_DATA_LEN_MAX(_hw_data_)       (ESP_APPTRACE_INBLOCK(_hw_data_)->sz - sizeof(esp_tracedata_hdr_t))
+#endif
+#define ESP_APPTRACE_USR_BLOCK_RAW_SZ(_s_)     ((_s_) + sizeof(esp_tracedata_hdr_t))
+
+#define ESP_APPTRACE_INBLOCK_MARKER(_hw_data_)          ((_hw_data_)->state.markers[(_hw_data_)->state.in_block % 2])
+#define ESP_APPTRACE_INBLOCK_MARKER_UPD(_hw_data_, _v_)   do {(_hw_data_)->state.markers[(_hw_data_)->state.in_block % 2] += (_v_);}while(0)
+#define ESP_APPTRACE_INBLOCK(_hw_data_)             (&(_hw_data_)->blocks[(_hw_data_)->state.in_block % 2])
+
+const static char *TAG = "esp_apptrace";
+
+static uint32_t esp_apptrace_membufs_down_buffer_write_nolock(esp_apptrace_membufs_proto_data_t *proto, uint8_t *data, uint32_t size);
+
+
+esp_err_t esp_apptrace_membufs_init(esp_apptrace_membufs_proto_data_t *proto, const esp_apptrace_mem_block_t blocks_cfg[2])
+{
+    // disabled by default
+    esp_apptrace_rb_init(&proto->rb_down, NULL, 0);
+    // membufs proto init
+    for (unsigned i = 0; i < 2; i++) {
+        proto->blocks[i].start = blocks_cfg[i].start;
+        proto->blocks[i].sz = blocks_cfg[i].sz;
+        proto->state.markers[i] = 0;
+    }
+    proto->state.in_block = 0;
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+    esp_apptrace_rb_init(&proto->rb_pend, proto->pending_data,
+                        sizeof(proto->pending_data));
+#endif
+    return ESP_OK;
+}
+
+void esp_apptrace_membufs_down_buffer_config(esp_apptrace_membufs_proto_data_t *data, uint8_t *buf, uint32_t size)
+{
+    esp_apptrace_rb_init(&data->rb_down, buf, size);
+}
+
+// assumed to be protected by caller from multi-core/thread access
+static esp_err_t esp_apptrace_membufs_swap(esp_apptrace_membufs_proto_data_t *proto)
+{
+    int prev_block_num = proto->state.in_block % 2;
+    int new_block_num = prev_block_num ? (0) : (1);
+    esp_err_t res = ESP_OK;
+
+    res = proto->hw->swap_start(proto->state.in_block);
+    if (res != ESP_OK) {
+        return res;
+    }
+
+    proto->state.markers[new_block_num] = 0;
+    // switch to new block
+    proto->state.in_block++;
+
+    proto->hw->swap(new_block_num);
+
+    // handle data from host
+    esp_hostdata_hdr_t *hdr = (esp_hostdata_hdr_t *)proto->blocks[new_block_num].start;
+    // ESP_APPTRACE_LOGV("Host data %d, sz %d @ %p", proto->hw->host_data_pending(), hdr->block_sz, hdr);
+    if (proto->hw->host_data_pending() && hdr->block_sz > 0) {
+        // TODO: add support for multiple blocks from host, currently there is no need for that
+        uint8_t *p = proto->blocks[new_block_num].start + proto->blocks[new_block_num].sz;
+        ESP_APPTRACE_LOGD("Recvd %d bytes from host [%x %x %x %x %x %x %x %x .. %x %x %x %x %x %x %x %x]", hdr->block_sz,
+            *(proto->blocks[new_block_num].start+0), *(proto->blocks[new_block_num].start+1),
+            *(proto->blocks[new_block_num].start+2), *(proto->blocks[new_block_num].start+3),
+            *(proto->blocks[new_block_num].start+4), *(proto->blocks[new_block_num].start+5),
+            *(proto->blocks[new_block_num].start+6), *(proto->blocks[new_block_num].start+7),
+            *(p-8), *(p-7), *(p-6), *(p-5), *(p-4), *(p-3), *(p-2), *(p-1));
+        uint32_t sz = esp_apptrace_membufs_down_buffer_write_nolock(proto, (uint8_t *)(hdr+1), hdr->block_sz);
+        if (sz != hdr->block_sz) {
+            ESP_APPTRACE_LOGE("Failed to write %d bytes to down buffer (%d %d)!", hdr->block_sz - sz, hdr->block_sz, sz);
+        }
+        hdr->block_sz = 0;
+    }
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+    // copy pending data to  block if any
+    while (proto->state.markers[new_block_num] < proto->blocks[new_block_num].sz) {
+        uint32_t read_sz = esp_apptrace_rb_read_size_get(&proto->rb_pend);
+        if (read_sz == 0) {
+            break; // no more data in pending buffer
+        }
+        if (read_sz > proto->blocks[new_block_num].sz - proto->state.markers[new_block_num]) {
+            read_sz = proto->blocks[new_block_num].sz - proto->state.markers[new_block_num];
+        }
+        uint8_t *ptr = esp_apptrace_rb_consume(&proto->rb_pend, read_sz);
+        if (!ptr) {
+            assert(false && "Failed to consume pended bytes!!");
+            break;
+        }
+        ESP_APPTRACE_LOGD("Pump %d pend bytes [%x %x %x %x : %x %x %x %x : %x %x %x %x : %x %x...%x %x]",
+            read_sz, *(ptr+0), *(ptr+1), *(ptr+2), *(ptr+3), *(ptr+4),
+            *(ptr+5), *(ptr+6), *(ptr+7), *(ptr+8), *(ptr+9), *(ptr+10), *(ptr+11), *(ptr+12), *(ptr+13), *(ptr+read_sz-2), *(ptr+read_sz-1));
+        memcpy(proto->blocks[new_block_num].start + proto->state.markers[new_block_num], ptr, read_sz);
+        proto->state.markers[new_block_num] += read_sz;
+    }
+#endif
+    proto->hw->swap_end(proto->state.in_block, proto->state.markers[prev_block_num]);
+    return res;
+}
+
+static esp_err_t esp_apptrace_membufs_swap_waitus(esp_apptrace_membufs_proto_data_t *proto, esp_apptrace_tmo_t *tmo)
+{
+    int res;
+
+    while ((res = esp_apptrace_membufs_swap(proto)) != ESP_OK) {
+        res = esp_apptrace_tmo_check(tmo);
+        if (res != ESP_OK) {
+            break;
+        }
+    }
+    return res;
+}
+
+uint8_t *esp_apptrace_membufs_down_buffer_get(esp_apptrace_membufs_proto_data_t *proto, uint32_t *size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *ptr = NULL;
+
+    while (1) {
+        uint32_t sz = esp_apptrace_rb_read_size_get(&proto->rb_down);
+        if (sz != 0) {
+            *size = MIN(*size, sz);
+            ptr = esp_apptrace_rb_consume(&proto->rb_down, *size);
+            if (!ptr) {
+                assert(false && "Failed to consume bytes from down buffer!");
+            }
+            break;
+        }
+        // may need to flush
+        if (proto->hw->host_data_pending()) {
+            ESP_APPTRACE_LOGD("force flush");
+            int res = esp_apptrace_membufs_swap_waitus(proto, tmo);
+            if (res != ESP_OK) {
+                ESP_APPTRACE_LOGE("Failed to switch to another block to recv data from host!");
+                /*do not return error because data can be in down buffer already*/
+            }
+        } else {
+            // check tmo only if there is no data from host
+            int res = esp_apptrace_tmo_check(tmo);
+            if (res != ESP_OK) {
+                return NULL;
+            }
+        }
+    }
+    return ptr;
+}
+
+esp_err_t esp_apptrace_membufs_down_buffer_put(esp_apptrace_membufs_proto_data_t *proto, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    /* nothing todo */
+    return ESP_OK;
+}
+
+static uint32_t esp_apptrace_membufs_down_buffer_write_nolock(esp_apptrace_membufs_proto_data_t *proto, uint8_t *data, uint32_t size)
+{
+    uint32_t total_sz = 0;
+
+    while (total_sz < size) {
+        ESP_APPTRACE_LOGD("esp_apptrace_trax_down_buffer_write_nolock WRS %d-%d-%d %d", proto->rb_down.wr, proto->rb_down.rd,
+            proto->rb_down.cur_size, size);
+        uint32_t wr_sz = esp_apptrace_rb_write_size_get(&proto->rb_down);
+        if (wr_sz == 0) {
+            break;
+        }
+
+        if (wr_sz > size - total_sz) {
+            wr_sz = size - total_sz;
+        }
+        ESP_APPTRACE_LOGD("esp_apptrace_trax_down_buffer_write_nolock wr %d", wr_sz);
+        uint8_t *ptr = esp_apptrace_rb_produce(&proto->rb_down, wr_sz);
+        if (!ptr) {
+            assert(false && "Failed to produce bytes to down buffer!");
+        }
+        ESP_APPTRACE_LOGD("esp_apptrace_trax_down_buffer_write_nolock wr %d to 0x%x from 0x%x", wr_sz, ptr, data + total_sz + wr_sz);
+        memcpy(ptr, data + total_sz, wr_sz);
+        total_sz += wr_sz;
+        ESP_APPTRACE_LOGD("esp_apptrace_trax_down_buffer_write_nolock wr %d/%d", wr_sz, total_sz);
+    }
+    return total_sz;
+}
+
+static inline uint8_t *esp_apptrace_membufs_wait4buf(esp_apptrace_membufs_proto_data_t *proto, uint16_t size, esp_apptrace_tmo_t *tmo, int *pended)
+{
+    uint8_t *ptr = NULL;
+
+    int res = esp_apptrace_membufs_swap_waitus(proto, tmo);
+    if (res != ESP_OK) {
+        return NULL;
+    }
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+    // check if we still have pending data
+    if (esp_apptrace_rb_read_size_get(&proto->rb_pend) > 0) {
+        // if after block switch we still have pending data (not all pending data have been pumped to block)
+        // alloc new pending buffer
+        *pended = 1;
+        ptr = esp_apptrace_rb_produce(&proto->rb_pend, size);
+        if (!ptr) {
+            ESP_APPTRACE_LOGE("Failed to alloc pend buf 1: w-r-s %d-%d-%d!", proto->rb_pend.wr, proto->rb_pend.rd, proto->rb_pend.cur_size);
+        }
+    } else
+#endif
+    {
+        // update block pointers
+        if (ESP_APPTRACE_INBLOCK_MARKER(proto) + size > ESP_APPTRACE_INBLOCK(proto)->sz) {
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+            *pended = 1;
+            ptr = esp_apptrace_rb_produce(&proto->rb_pend, size);
+            if (ptr == NULL) {
+                ESP_APPTRACE_LOGE("Failed to alloc pend buf 2: w-r-s %d-%d-%d!", proto->rb_pend.wr, proto->rb_pend.rd, proto->rb_pend.cur_size);
+            }
+#endif
+        } else {
+            *pended = 0;
+            ptr = ESP_APPTRACE_INBLOCK(proto)->start + ESP_APPTRACE_INBLOCK_MARKER(proto);
+        }
+    }
+
+    return ptr;
+}
+
+static inline uint8_t *esp_apptrace_membufs_pkt_start(uint8_t *ptr, uint16_t size)
+{
+    // it is safe to use cpu_hal_get_core_id() in macro call because arg is used only once inside it
+    ((esp_tracedata_hdr_t *)ptr)->block_sz = ESP_APPTRACE_USR_BLOCK_CORE(cpu_hal_get_core_id()) | size;
+    ((esp_tracedata_hdr_t *)ptr)->wr_sz = 0;
+    return ptr + sizeof(esp_tracedata_hdr_t);
+}
+
+static inline void esp_apptrace_membufs_pkt_end(uint8_t *ptr)
+{
+    esp_tracedata_hdr_t *hdr = (esp_tracedata_hdr_t *)(ptr - sizeof(esp_tracedata_hdr_t));
+    // update written size
+    hdr->wr_sz = hdr->block_sz;
+}
+
+uint8_t *esp_apptrace_membufs_up_buffer_get(esp_apptrace_membufs_proto_data_t *proto, uint32_t size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *buf_ptr = NULL;
+
+    if (size > ESP_APPTRACE_USR_DATA_LEN_MAX(proto)) {
+        ESP_APPTRACE_LOGE("Too large user data size %d!", size);
+        return NULL;
+    }
+
+    // check for data in the pending buffer
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+    if (esp_apptrace_rb_read_size_get(&proto->rb_pend) > 0) {
+        // if we have buffered data try to switch  block
+        esp_apptrace_membufs_swap(proto);
+        // if switch was successful, part or all pended data have been copied to  block
+    }
+    if (esp_apptrace_rb_read_size_get(&proto->rb_pend) > 0) {
+        // if we have buffered data alloc new pending buffer
+        ESP_APPTRACE_LOGD("Get %d bytes from PEND buffer", size);
+        buf_ptr = esp_apptrace_rb_produce(&proto->rb_pend, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size));
+        if (buf_ptr == NULL) {
+            int pended_buf;
+            buf_ptr = esp_apptrace_membufs_wait4buf(proto, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size), tmo, &pended_buf);
+            if (buf_ptr && !pended_buf) {
+                ESP_APPTRACE_LOGD("Get %d bytes from block", size);
+                // update cur block marker
+                ESP_APPTRACE_INBLOCK_MARKER_UPD(proto, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size));
+            }
+        }
+    } else {
+#else
+    if (1) {
+#endif
+        if (ESP_APPTRACE_INBLOCK_MARKER(proto) + ESP_APPTRACE_USR_BLOCK_RAW_SZ(size) > ESP_APPTRACE_INBLOCK(proto)->sz) {
+            #if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+            ESP_APPTRACE_LOGD("Block full. Get %d bytes from PEND buffer", size);
+            buf_ptr = esp_apptrace_rb_produce(&proto->rb_pend, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size));
+            #endif
+            if (buf_ptr == NULL) {
+                int pended_buf;
+                ESP_APPTRACE_LOGD(" full. Get %d bytes from pend buffer", size);
+                buf_ptr = esp_apptrace_membufs_wait4buf(proto, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size), tmo, &pended_buf);
+                if (buf_ptr && !pended_buf) {
+                    ESP_APPTRACE_LOGD("Got %d bytes from block", size);
+                    // update cur block marker
+                    ESP_APPTRACE_INBLOCK_MARKER_UPD(proto, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size));
+                }
+            }
+        } else {
+            ESP_APPTRACE_LOGD("Get %d bytes from  buffer", size);
+            // fit to curr  nlock
+            buf_ptr = ESP_APPTRACE_INBLOCK(proto)->start + ESP_APPTRACE_INBLOCK_MARKER(proto);
+            // update cur block marker
+            ESP_APPTRACE_INBLOCK_MARKER_UPD(proto, ESP_APPTRACE_USR_BLOCK_RAW_SZ(size));
+        }
+    }
+    if (buf_ptr) {
+        buf_ptr = esp_apptrace_membufs_pkt_start(buf_ptr, size);
+    }
+
+    return buf_ptr;
+}
+
+esp_err_t esp_apptrace_membufs_up_buffer_put(esp_apptrace_membufs_proto_data_t *proto, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    esp_apptrace_membufs_pkt_end(ptr);
+    // TODO: mark block as busy in order not to re-use it for other tracing calls until it is completely written
+    // TODO: avoid potential situation when all memory is consumed by low prio tasks which can not complete writing due to
+    // higher prio tasks and the latter can not allocate buffers at all
+    // this is abnormal situation can be detected on host which will receive only uncompleted buffers
+    // workaround: use own memcpy which will kick-off dead tracing calls
+    return ESP_OK;
+}
+
+esp_err_t esp_apptrace_membufs_flush_nolock(esp_apptrace_membufs_proto_data_t *proto, uint32_t min_sz, esp_apptrace_tmo_t *tmo)
+{
+    int res = ESP_OK;
+
+    if (ESP_APPTRACE_INBLOCK_MARKER(proto) < min_sz) {
+        ESP_APPTRACE_LOGI("Ignore flush request for min %d bytes. Bytes in  block: %d.", min_sz, ESP_APPTRACE_INBLOCK_MARKER(proto));
+        return ESP_OK;
+    }
+    // switch  block while size of data (including that in pending buffer) is more than min size
+    while (ESP_APPTRACE_INBLOCK_MARKER(proto) > min_sz) {
+        ESP_APPTRACE_LOGD("Try to flush %d bytes. Wait until block switch for %lld us", ESP_APPTRACE_INBLOCK_MARKER(proto), tmo->tmo);
+        res = esp_apptrace_membufs_swap_waitus(proto, tmo);
+        if (res != ESP_OK) {
+            if (tmo->tmo != ESP_APPTRACE_TMO_INFINITE)
+                ESP_APPTRACE_LOGW("Failed to switch to another block in %lld us!", tmo->tmo);
+            else
+                ESP_APPTRACE_LOGE("Failed to switch to another block in %lld us!", tmo->tmo);
+            return res;
+        }
+    }
+
+    return res;
+}

components/app_trace/app_trace_util.c

@@ -1,44 +1,49 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 //
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "esp_app_trace_util.h"
 #include "sdkconfig.h"
-#if CONFIG_IDF_TARGET_ESP32
-#include "esp32/clk.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/clk.h"
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////// Locks /////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+#if ESP_APPTRACE_PRINT_LOCK
+static esp_apptrace_lock_t s_log_lock = {.irq_stat = 0, .portmux = portMUX_INITIALIZER_UNLOCKED};
 #endif
 
+int esp_apptrace_log_lock(void)
+{
+#if ESP_APPTRACE_PRINT_LOCK
+    esp_apptrace_tmo_t tmo;
+    esp_apptrace_tmo_init(&tmo, ESP_APPTRACE_TMO_INFINITE);
+    int ret = esp_apptrace_lock_take(&s_log_lock, &tmo);
+    return ret;
+#else
+    return 0;
+#endif
+}
+
+void esp_apptrace_log_unlock(void)
+{
+ #if ESP_APPTRACE_PRINT_LOCK
+    esp_apptrace_lock_give(&s_log_lock);
+#endif
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 ///////////////////////////////// TIMEOUT /////////////////////////////////////
 ///////////////////////////////////////////////////////////////////////////////
 
-#define ESP_APPTRACE_CPUTICKS2US(_t_, _cpu_freq_)       ((_t_)/(_cpu_freq_/1000000))
-#define ESP_APPTRACE_US2CPUTICKS(_t_, _cpu_freq_)       ((_t_)*(_cpu_freq_/1000000))
-
 esp_err_t esp_apptrace_tmo_check(esp_apptrace_tmo_t *tmo)
 {
-    int cpu_freq = esp_clk_cpu_freq();
-    if (tmo->tmo != ESP_APPTRACE_TMO_INFINITE) {
-        unsigned cur = portGET_RUN_TIME_COUNTER_VALUE();
-        if (tmo->start <= cur) {
-            tmo->elapsed = ESP_APPTRACE_CPUTICKS2US(cur - tmo->start, cpu_freq);
-        } else {
-            tmo->elapsed = ESP_APPTRACE_CPUTICKS2US(0xFFFFFFFF - tmo->start + cur, cpu_freq);
-        }
+    if (tmo->tmo != (int64_t)-1) {
+        tmo->elapsed = esp_timer_get_time() - tmo->start;
         if (tmo->elapsed >= tmo->tmo) {
             return ESP_ERR_TIMEOUT;
         }
@@ -55,22 +60,16 @@ esp_err_t esp_apptrace_lock_take(esp_apptrace_lock_t *lock, esp_apptrace_tmo_t *
     int res;
 
     while (1) {
+        //Todo: Replace the current locking mechanism and int_state with portTRY_ENTER_CRITICAL() instead.
         // do not overwrite lock->int_state before we actually acquired the mux
-        unsigned int_state = portENTER_CRITICAL_NESTED();
-        // FIXME: if mux is busy it is not good idea to loop during the whole tmo with disabled IRQs.
-        // So we check mux state using zero tmo, restore IRQs and let others tasks/IRQs to run on this CPU
-        // while we are doing our own tmo check.
-#ifdef CONFIG_FREERTOS_PORTMUX_DEBUG
-        bool success = vPortCPUAcquireMutexTimeout(&lock->mux, 0, __FUNCTION__, __LINE__);
-#else
+        unsigned int_state = portSET_INTERRUPT_MASK_FROM_ISR();
         bool success = vPortCPUAcquireMutexTimeout(&lock->mux, 0);
-#endif
         if (success) {
             lock->int_state = int_state;
             return ESP_OK;
         }
-        portEXIT_CRITICAL_NESTED(int_state);
-        // we can be preempted from this place till the next call (above) to portENTER_CRITICAL_NESTED()
+        portCLEAR_INTERRUPT_MASK_FROM_ISR(int_state);
+        // we can be preempted from this place till the next call (above) to portSET_INTERRUPT_MASK_FROM_ISR()
         res = esp_apptrace_tmo_check(tmo);
         if (res != ESP_OK) {
             break;
@@ -85,12 +84,8 @@ esp_err_t esp_apptrace_lock_give(esp_apptrace_lock_t *lock)
     unsigned int_state = lock->int_state;
     // after call to the following func we can not be sure that lock->int_state
     // is not overwritten by other CPU who has acquired the mux just after we released it. See esp_apptrace_lock_take().
-#ifdef CONFIG_FREERTOS_PORTMUX_DEBUG
-    vPortCPUReleaseMutex(&lock->mux, __FUNCTION__, __LINE__);
-#else
     vPortCPUReleaseMutex(&lock->mux);
-#endif
-    portEXIT_CRITICAL_NESTED(int_state);
+    portCLEAR_INTERRUPT_MASK_FROM_ISR(int_state);
     return ESP_OK;
 }
 

components/app_trace/component.mk

@@ -4,11 +4,22 @@
 
 COMPONENT_SRCDIRS := .
 
+ifdef CONFIG_APPTRACE_MEMBUFS_APPTRACE_PROTO_ENABLE
+COMPONENT_SRCDIRS += port/xtensa
+endif
+
 COMPONENT_ADD_INCLUDEDIRS = include
 
+COMPONENT_PRIV_INCLUDEDIRS = private_include \
+	port/include
+
 COMPONENT_ADD_LDFLAGS = -lapp_trace
 
-ifdef CONFIG_SYSVIEW_ENABLE
+# do not produce gcov info for this module, it is used as transport for gcov
+CFLAGS := $(subst --coverage,,$(CFLAGS))
+
+ifdef CONFIG_APPTRACE_SV_ENABLE
+
 COMPONENT_ADD_INCLUDEDIRS += \
 	sys_view/Config \
 	sys_view/SEGGER \
@@ -19,15 +30,10 @@ COMPONENT_SRCDIRS += \
 	sys_view/SEGGER \
 	sys_view/Sample/OS \
 	sys_view/Sample/Config \
-	sys_view/esp32 \
+	sys_view/esp \
 	sys_view/ext
 else
-ifdef CONFIG_APPTRACE_GCOV_ENABLE
-# do not produce gcov info for this module, it is used as transport for gcov
-CFLAGS := $(subst --coverage,,$(CFLAGS))
-COMPONENT_ADD_LDFLAGS += -Wl,--undefined=gcov_rtio_atexit
 COMPONENT_SRCDIRS += gcov
 endif
-endif
 
 COMPONENT_ADD_LDFRAGMENTS += linker.lf

components/app_trace/gcov/gcov_rtio.c

@@ -1,16 +1,8 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 // This module implements runtime file I/O API for GCOV.
 
@@ -25,17 +17,17 @@
 #include "esp_freertos_hooks.h"
 #include "esp_private/dbg_stubs.h"
 #include "esp_ipc.h"
+#include "hal/wdt_hal.h"
 #if CONFIG_IDF_TARGET_ESP32
 #include "esp32/rom/libc_stubs.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/rom/libc_stubs.h"
+#elif CONFIG_IDF_TARGET_ESP32S2
+#include "esp32s2/rom/libc_stubs.h"
 #endif
 
 #if CONFIG_APPTRACE_GCOV_ENABLE
 
 #define ESP_GCOV_DOWN_BUF_SIZE  4200
 
-#define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL
 #include "esp_log.h"
 const static char *TAG = "esp_gcov_rtio";
 static volatile bool s_create_gcov_task = false;
@@ -60,11 +52,18 @@ void gcov_dump_task(void *pvParameter)
     }
     ESP_EARLY_LOGV(TAG, "Config apptrace down buf");
     esp_apptrace_down_buffer_config(down_buf, ESP_GCOV_DOWN_BUF_SIZE);
+    /* we are directing the std outputs to the fake ones in order to reduce stack usage */
+    FILE *old_stderr = stderr;
+    FILE *old_stdout = stdout;
+    stderr = (FILE *) &__sf_fake_stderr;
+    stdout = (FILE *) &__sf_fake_stdout;
     ESP_EARLY_LOGV(TAG, "Dump data...");
     __gcov_dump();
     // reset dump status to allow incremental data accumulation
     __gcov_reset();
     free(down_buf);
+    stderr = old_stderr;
+    stdout = old_stdout;
     ESP_EARLY_LOGV(TAG, "Finish file transfer session");
     dump_result = esp_apptrace_fstop(ESP_APPTRACE_DEST_TRAX);
     if (dump_result != ESP_OK) {
@@ -143,7 +142,9 @@ void esp_gcov_dump(void)
 void *gcov_rtio_fopen(const char *path, const char *mode)
 {
     ESP_EARLY_LOGV(TAG, "%s '%s' '%s'", __FUNCTION__, path, mode);
-    return esp_apptrace_fopen(ESP_APPTRACE_DEST_TRAX, path, mode);
+    void *f = esp_apptrace_fopen(ESP_APPTRACE_DEST_TRAX, path, mode);
+    ESP_EARLY_LOGV(TAG, "%s ret %p", __FUNCTION__, f);
+    return f;
 }
 
 int gcov_rtio_fclose(void *stream)

components/app_trace/heap_trace_tohost.c

@@ -1,23 +1,15 @@
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <sdkconfig.h>
 
 #define HEAP_TRACE_SRCFILE /* don't warn on inclusion here */
 #include "esp_heap_trace.h"
 #undef HEAP_TRACE_SRCFILE
 
-#if CONFIG_SYSVIEW_ENABLE
+#if CONFIG_APPTRACE_SV_ENABLE
 #include "esp_app_trace.h"
 #include "esp_sysview_trace.h"
 #endif
@@ -26,7 +18,7 @@
 
 #ifdef CONFIG_HEAP_TRACING_TOHOST
 
-#if !CONFIG_SYSVIEW_ENABLE
+#if !CONFIG_APPTRACE_SV_ENABLE
 #error None of the heap tracing backends is enabled! You must enable SystemView compatible tracing to use this feature.
 #endif
 
@@ -42,7 +34,7 @@ esp_err_t heap_trace_init_tohost(void)
 
 esp_err_t heap_trace_start(heap_trace_mode_t mode_param)
 {
-#if CONFIG_SYSVIEW_ENABLE
+#if CONFIG_APPTRACE_SV_ENABLE
     esp_err_t ret = esp_sysview_heap_trace_start((uint32_t)-1);
     if (ret != ESP_OK) {
         return ret;
@@ -55,7 +47,7 @@ esp_err_t heap_trace_start(heap_trace_mode_t mode_param)
 esp_err_t heap_trace_stop(void)
 {
     esp_err_t ret = ESP_ERR_NOT_SUPPORTED;
-#if CONFIG_SYSVIEW_ENABLE
+#if CONFIG_APPTRACE_SV_ENABLE
     ret = esp_sysview_heap_trace_stop();
 #endif
     s_tracing = false;
@@ -88,7 +80,7 @@ static IRAM_ATTR void record_allocation(const heap_trace_record_t *record)
     if (!s_tracing) {
         return;
     }
-#if CONFIG_SYSVIEW_ENABLE
+#if CONFIG_APPTRACE_SV_ENABLE
     esp_sysview_heap_trace_alloc(record->address, record->size, record->alloced_by);
 #endif
 }
@@ -103,7 +95,7 @@ static IRAM_ATTR void record_free(void *p, void **callers)
     if (!s_tracing) {
         return;
     }
-#if CONFIG_SYSVIEW_ENABLE
+#if CONFIG_APPTRACE_SV_ENABLE
     esp_sysview_heap_trace_free(p, callers);
 #endif
 }
@@ -111,4 +103,3 @@ static IRAM_ATTR void record_free(void *p, void **callers)
 #include "heap_trace.inc"
 
 #endif /*CONFIG_HEAP_TRACING_TOHOST*/
-

components/app_trace/host_file_io.c

@@ -1,16 +1,8 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 //
 // Hot It Works
 // ************
@@ -27,7 +19,6 @@
 
 #if CONFIG_APPTRACE_ENABLE
 
-#define LOG_LOCAL_LEVEL CONFIG_LOG_DEFAULT_LEVEL
 #include "esp_log.h"
 const static char *TAG = "esp_host_file_io";
 
@@ -146,7 +137,7 @@ void *esp_apptrace_fopen(esp_apptrace_dest_t dest, const char *path, const char
 
     ESP_EARLY_LOGV(TAG, "esp_apptrace_fopen '%s' '%s'", path, mode);
     if (path == NULL || mode == NULL) {
-        return 0;        
+        return 0;
     }
 
     cmd_args.path = path;
@@ -217,7 +208,7 @@ size_t esp_apptrace_fwrite(esp_apptrace_dest_t dest, const void *ptr, size_t siz
     ESP_EARLY_LOGV(TAG, "esp_apptrace_fwrite f %p l %d", stream, size*nmemb);
 
     if (ptr == NULL) {
-        return 0;        
+        return 0;
     }
 
     cmd_args.buf = (void *)ptr;
@@ -256,7 +247,7 @@ size_t esp_apptrace_fread(esp_apptrace_dest_t dest, void *ptr, size_t size, size
     ESP_EARLY_LOGV(TAG, "esp_apptrace_fread f %p l %d", stream, size*nmemb);
 
     if (ptr == NULL) {
-        return 0;        
+        return 0;
     }
 
     cmd_args.size = size * nmemb;

components/app_trace/include/esp_app_trace.h

@@ -1,16 +1,8 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #ifndef ESP_APP_TRACE_H_
 #define ESP_APP_TRACE_H_
 
@@ -26,8 +18,11 @@ extern "C" {
  * Application trace data destinations bits.
  */
 typedef enum {
-    ESP_APPTRACE_DEST_TRAX = 0x1,	///< JTAG destination
-    ESP_APPTRACE_DEST_UART0 = 0x2,	///< UART destination
+    ESP_APPTRACE_DEST_JTAG = 1,                         ///< JTAG destination
+    ESP_APPTRACE_DEST_TRAX = ESP_APPTRACE_DEST_JTAG, 	///< xxx_TRAX name is obsolete, use more common xxx_JTAG
+    ESP_APPTRACE_DEST_UART0,	                        ///< UART0 destination
+    ESP_APPTRACE_DEST_MAX = ESP_APPTRACE_DEST_UART0,
+    ESP_APPTRACE_DEST_NUM
 } esp_apptrace_dest_t;
 
 /**

components/app_trace/include/esp_app_trace_util.h

@@ -1,16 +1,8 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #ifndef ESP_APP_TRACE_UTIL_H_
 #define ESP_APP_TRACE_UTIL_H_
 
@@ -20,19 +12,20 @@ extern "C" {
 
 #include "freertos/FreeRTOS.h"
 #include "esp_err.h"
+#include "esp_timer.h"
 
 /** Infinite waiting timeout */
 #define ESP_APPTRACE_TMO_INFINITE               ((uint32_t)-1)
 
-/** Structure which holds data necessary for measuring time intervals. 
+/** Structure which holds data necessary for measuring time intervals.
  *
  *  After initialization via esp_apptrace_tmo_init() user needs to call esp_apptrace_tmo_check()
  *  periodically to check timeout for expiration.
  */
 typedef struct {
-    uint32_t   start;   ///< time interval start (in CPU ticks)
-    uint32_t   tmo;     ///< timeout value (in us)
-    uint32_t   elapsed; ///< elapsed time (in us)
+    int64_t   start;   ///< time interval start (in us)
+    int64_t   tmo;     ///< timeout value (in us)
+    int64_t   elapsed; ///< elapsed time (in us)
 } esp_apptrace_tmo_t;
 
 /**
@@ -43,23 +36,23 @@ typedef struct {
 */
 static inline void esp_apptrace_tmo_init(esp_apptrace_tmo_t *tmo, uint32_t user_tmo)
 {
-    tmo->start = portGET_RUN_TIME_COUNTER_VALUE();
-    tmo->tmo = user_tmo;
+    tmo->start = esp_timer_get_time();
+    tmo->tmo = user_tmo == ESP_APPTRACE_TMO_INFINITE ? (int64_t)-1 : (int64_t)user_tmo;
     tmo->elapsed = 0;
 }
 
 /**
  * @brief Checks timeout for expiration.
  *
- * @param tmo Pointer to timeout structure to be initialized.
+ * @param tmo Pointer to timeout structure.
  *
- * @return ESP_OK on success, otherwise \see esp_err_t
+ * @return number of remaining us till tmo.
  */
 esp_err_t esp_apptrace_tmo_check(esp_apptrace_tmo_t *tmo);
 
 static inline uint32_t esp_apptrace_tmo_remaining_us(esp_apptrace_tmo_t *tmo)
 {
-    return tmo->tmo != ESP_APPTRACE_TMO_INFINITE ? (tmo->elapsed - tmo->tmo) : ESP_APPTRACE_TMO_INFINITE;
+    return tmo->tmo != (int64_t)-1 ? (tmo->elapsed - tmo->tmo) : ESP_APPTRACE_TMO_INFINITE;
 }
 
 /** Tracing module synchronization lock */
@@ -75,7 +68,7 @@ typedef struct {
  */
 static inline void esp_apptrace_lock_init(esp_apptrace_lock_t *lock)
 {
-    vPortCPUInitializeMutex(&lock->mux);
+    portMUX_INITIALIZE(&lock->mux);
     lock->int_state = 0;
 }
 
@@ -100,7 +93,7 @@ esp_err_t esp_apptrace_lock_give(esp_apptrace_lock_t *lock);
 
 /** Ring buffer control structure.
  *
- * @note For purposes of application tracing module if there is no enough space for user data and write pointer can be wrapped 
+ * @note For purposes of application tracing module if there is no enough space for user data and write pointer can be wrapped
  *       current ring buffer size can be temporarily shrinked in order to provide buffer with requested size.
  */
 typedef struct {
@@ -168,6 +161,30 @@ uint32_t esp_apptrace_rb_read_size_get(esp_apptrace_rb_t *rb);
  */
 uint32_t esp_apptrace_rb_write_size_get(esp_apptrace_rb_t *rb);
 
+int esp_apptrace_log_lock(void);
+void esp_apptrace_log_unlock(void);
+
+#define ESP_APPTRACE_LOG( format, ... )   \
+    do { \
+        esp_apptrace_log_lock(); \
+        esp_rom_printf(format, ##__VA_ARGS__); \
+        esp_apptrace_log_unlock(); \
+    } while(0)
+
+#define ESP_APPTRACE_LOG_LEV( _L_, level, format, ... )   \
+    do { \
+        if (LOG_LOCAL_LEVEL >= level) { \
+            ESP_APPTRACE_LOG(LOG_FORMAT(_L_, format), esp_log_early_timestamp(), TAG, ##__VA_ARGS__); \
+        } \
+    } while(0)
+
+#define ESP_APPTRACE_LOGE( format, ... )  ESP_APPTRACE_LOG_LEV(E, ESP_LOG_ERROR, format, ##__VA_ARGS__)
+#define ESP_APPTRACE_LOGW( format, ... )  ESP_APPTRACE_LOG_LEV(W, ESP_LOG_WARN, format, ##__VA_ARGS__)
+#define ESP_APPTRACE_LOGI( format, ... )  ESP_APPTRACE_LOG_LEV(I, ESP_LOG_INFO, format, ##__VA_ARGS__)
+#define ESP_APPTRACE_LOGD( format, ... )  ESP_APPTRACE_LOG_LEV(D, ESP_LOG_DEBUG, format, ##__VA_ARGS__)
+#define ESP_APPTRACE_LOGV( format, ... )  ESP_APPTRACE_LOG_LEV(V, ESP_LOG_VERBOSE, format, ##__VA_ARGS__)
+#define ESP_APPTRACE_LOGO( format, ... )  ESP_APPTRACE_LOG_LEV(E, ESP_LOG_NONE, format, ##__VA_ARGS__)
+
 #ifdef __cplusplus
 }
 #endif

components/app_trace/include/esp_sysview_trace.h

@@ -1,16 +1,8 @@
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #ifndef ESP_SYSVIEW_TRACE_H_
 #define ESP_SYSVIEW_TRACE_H_
 
@@ -20,7 +12,7 @@ extern "C" {
 
 #include <stdarg.h>
 #include "esp_err.h"
-#include "SEGGER_RTT.h" // SEGGER_RTT_ESP32_Flush
+#include "SEGGER_RTT.h" // SEGGER_RTT_ESP_Flush
 #include "esp_app_trace_util.h" // ESP_APPTRACE_TMO_INFINITE
 
 /**
@@ -32,7 +24,7 @@ extern "C" {
  */
 static inline esp_err_t esp_sysview_flush(uint32_t tmo)
 {
-    SEGGER_RTT_ESP32_Flush(0, tmo);
+    SEGGER_RTT_ESP_Flush(0, tmo);
     return ESP_OK;
 }
 

components/app_trace/linker.lf

@@ -1,19 +1,19 @@
 [mapping:app_trace]
 archive: libapp_trace.a
-entries: 
+entries:
     app_trace (noflash)
     app_trace_util (noflash)
-    if SYSVIEW_ENABLE = y:
+    if APPTRACE_SV_ENABLE = y:
       SEGGER_SYSVIEW (noflash)
-      SEGGER_RTT_esp32 (noflash)
+      SEGGER_RTT_esp (noflash)
       SEGGER_SYSVIEW_Config_FreeRTOS (noflash)
       SEGGER_SYSVIEW_FreeRTOS (noflash)
 
-[mapping:driver]
+[mapping:app_trace_driver]
 archive: libdriver.a
 entries:
-    if SYSVIEW_TS_SOURCE_TIMER_00 = y || SYSVIEW_TS_SOURCE_TIMER_01 = y
-       || SYSVIEW_TS_SOURCE_TIMER_10 = y || SYSVIEW_TS_SOURCE_TIMER_11 = y:
+    if APPTRACE_SV_TS_SOURCE_TIMER_00 = y || APPTRACE_SV_TS_SOURCE_TIMER_01 = y
+       || APPTRACE_SV_TS_SOURCE_TIMER_10 = y || APPTRACE_SV_TS_SOURCE_TIMER_11 = y:
       timer (noflash)
     else:
       * (default)

components/app_trace/port/include/esp_app_trace_port.h

@@ -0,0 +1,43 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#ifndef ESP_APP_TRACE_PORT_H_
+#define ESP_APP_TRACE_PORT_H_
+
+#include "esp_app_trace_util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Apptrace HW interface. */
+typedef struct {
+    esp_err_t (*init)(void *hw_data);
+    uint8_t *(*get_up_buffer)(void *hw_data, uint32_t, esp_apptrace_tmo_t *);
+    esp_err_t (*put_up_buffer)(void *hw_data, uint8_t *, esp_apptrace_tmo_t *);
+    esp_err_t (*flush_up_buffer_nolock)(void *hw_data, uint32_t, esp_apptrace_tmo_t *);
+    esp_err_t (*flush_up_buffer)(void *hw_data, esp_apptrace_tmo_t *);
+    void (*down_buffer_config)(void *hw_data, uint8_t *buf, uint32_t size);
+    uint8_t *(*get_down_buffer)(void *hw_data, uint32_t *, esp_apptrace_tmo_t *);
+    esp_err_t (*put_down_buffer)(void *hw_data, uint8_t *, esp_apptrace_tmo_t *);
+    bool (*host_is_connected)(void *hw_data);
+} esp_apptrace_hw_t;
+
+esp_apptrace_hw_t *esp_apptrace_jtag_hw_get(void **data);
+esp_apptrace_hw_t *esp_apptrace_uart_hw_get(int num, void **data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

components/app_trace/port/riscv/port.c

@@ -0,0 +1,374 @@
+#include "esp_log.h"
+#include "esp_app_trace_membufs_proto.h"
+#include "esp_app_trace_port.h"
+
+/** RISCV HW transport data */
+typedef struct {
+    uint8_t                             inited; // initialization state flags for every core
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    esp_apptrace_lock_t                 lock;   // sync lock
+#endif
+    esp_apptrace_membufs_proto_data_t   membufs;
+} esp_apptrace_riscv_data_t;
+
+/** RISCV memory host iface control block */
+typedef struct {
+    uint32_t                    ctrl;
+    // - Guard field. If this register is not zero then CPU is changing this struct and
+    //   this guard field holds address of the instruction which application will execute when CPU finishes with those modifications.
+    uint32_t                    stat;
+    esp_apptrace_mem_block_t *  mem_blocks;
+} esp_apptrace_riscv_ctrl_block_t;
+
+#define RISCV_APPTRACE_SYSNR    0x64
+
+#define ESP_APPTRACE_RISCV_BLOCK_LEN_MSK         0x7FFFUL
+#define ESP_APPTRACE_RISCV_BLOCK_LEN(_l_)        ((_l_) & ESP_APPTRACE_RISCV_BLOCK_LEN_MSK)
+#define ESP_APPTRACE_RISCV_BLOCK_LEN_GET(_v_)    ((_v_) & ESP_APPTRACE_RISCV_BLOCK_LEN_MSK)
+#define ESP_APPTRACE_RISCV_BLOCK_ID_MSK          0x7FUL
+#define ESP_APPTRACE_RISCV_BLOCK_ID(_id_)        (((_id_) & ESP_APPTRACE_RISCV_BLOCK_ID_MSK) << 15)
+#define ESP_APPTRACE_RISCV_BLOCK_ID_GET(_v_)     (((_v_) >> 15) & ESP_APPTRACE_RISCV_BLOCK_ID_MSK)
+#define ESP_APPTRACE_RISCV_HOST_DATA             (1 << 22)
+#define ESP_APPTRACE_RISCV_HOST_CONNECT          (1 << 23)
+
+#define ESP_APPTRACE_RISCV_INITED(_hw_)          ((_hw_)->inited & (1 << 0/*cpu_hal_get_core_id()*/))
+
+static esp_err_t esp_apptrace_riscv_init(esp_apptrace_riscv_data_t *hw_data);
+static esp_err_t esp_apptrace_riscv_flush(esp_apptrace_riscv_data_t *hw_data, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_riscv_flush_nolock(esp_apptrace_riscv_data_t *hw_data, uint32_t min_sz, esp_apptrace_tmo_t *tmo);
+static uint8_t *esp_apptrace_riscv_up_buffer_get(esp_apptrace_riscv_data_t *hw_data, uint32_t size, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_riscv_up_buffer_put(esp_apptrace_riscv_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+static void esp_apptrace_riscv_down_buffer_config(esp_apptrace_riscv_data_t *hw_data, uint8_t *buf, uint32_t size);
+static uint8_t *esp_apptrace_riscv_down_buffer_get(esp_apptrace_riscv_data_t *hw_data, uint32_t *size, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_riscv_down_buffer_put(esp_apptrace_riscv_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+static bool esp_apptrace_riscv_host_is_connected(esp_apptrace_riscv_data_t *hw_data);
+static esp_err_t esp_apptrace_riscv_buffer_swap_start(uint32_t curr_block_id);
+static esp_err_t esp_apptrace_riscv_buffer_swap(uint32_t new_block_id);
+static esp_err_t esp_apptrace_riscv_buffer_swap_end(uint32_t new_block_id, uint32_t prev_block_len);
+static bool esp_apptrace_riscv_host_data_pending(void);
+
+
+const static char *TAG = "esp_apptrace";
+
+static esp_apptrace_riscv_ctrl_block_t s_tracing_ctrl[portNUM_PROCESSORS];
+
+esp_apptrace_hw_t *esp_apptrace_uart_hw_get(int num, void **data)
+{
+    return NULL;
+}
+
+esp_apptrace_hw_t *esp_apptrace_jtag_hw_get(void **data)
+{
+#if CONFIG_APPTRACE_DEST_JTAG
+    static esp_apptrace_membufs_proto_hw_t s_trace_proto_hw = {
+        .swap_start = esp_apptrace_riscv_buffer_swap_start,
+        .swap = esp_apptrace_riscv_buffer_swap,
+        .swap_end = esp_apptrace_riscv_buffer_swap_end,
+        .host_data_pending = esp_apptrace_riscv_host_data_pending,
+    };
+    static esp_apptrace_riscv_data_t s_trace_hw_data = {
+        .membufs = {
+            .hw = &s_trace_proto_hw,
+        },
+    };
+    static esp_apptrace_hw_t s_trace_hw = {
+        .init = (esp_err_t (*)(void *))esp_apptrace_riscv_init,
+        .get_up_buffer = (uint8_t *(*)(void *, uint32_t, esp_apptrace_tmo_t *))esp_apptrace_riscv_up_buffer_get,
+        .put_up_buffer = (esp_err_t (*)(void *, uint8_t *, esp_apptrace_tmo_t *))esp_apptrace_riscv_up_buffer_put,
+        .flush_up_buffer_nolock = (esp_err_t (*)(void *, uint32_t, esp_apptrace_tmo_t *))esp_apptrace_riscv_flush_nolock,
+        .flush_up_buffer = (esp_err_t (*)(void *, esp_apptrace_tmo_t *))esp_apptrace_riscv_flush,
+        .down_buffer_config = (void (*)(void *, uint8_t *, uint32_t ))esp_apptrace_riscv_down_buffer_config,
+        .get_down_buffer = (uint8_t *(*)(void *, uint32_t *, esp_apptrace_tmo_t *))esp_apptrace_riscv_down_buffer_get,
+        .put_down_buffer = (esp_err_t (*)(void *, uint8_t *, esp_apptrace_tmo_t *))esp_apptrace_riscv_down_buffer_put,
+        .host_is_connected = (bool (*)(void *))esp_apptrace_riscv_host_is_connected,
+    };
+    *data = &s_trace_hw_data;
+    return &s_trace_hw;
+#else
+    return NULL;
+#endif
+}
+
+/* Advertises apptrace control block address to host.
+   This function can be overriden with custom implementation,
+   e.g. OpenOCD flasher stub use own implementation of it. */
+__attribute__((weak)) int esp_apptrace_advertise_ctrl_block(void *ctrl_block_addr)
+{
+    register int sys_nr = RISCV_APPTRACE_SYSNR;
+    register int host_ret = 0;
+
+    if (!esp_cpu_in_ocd_debug_mode()) {
+        return 0;
+    }
+    __asm__ volatile ( \
+        ".option push\n" \
+        ".option norvc\n" \
+        "mv a0, %[sys_nr]\n" \
+        "mv a1, %[arg1]\n" \
+        "slli    zero,zero,0x1f\n" \
+        "ebreak\n" \
+        "srai    zero,zero,0x7\n" \
+        "mv %[host_ret], a0\n" \
+    	".option pop\n" \
+        :[host_ret]"=r"(host_ret)
+        :[sys_nr]"r"(sys_nr),[arg1]"r"(ctrl_block_addr):"a0","a1");
+    return host_ret;
+}
+
+/* Returns up buffers config.
+   This function can be overriden with custom implementation,
+   e.g. OpenOCD flasher stub use own implementation of it. */
+__attribute__((weak)) void esp_apptrace_get_up_buffers(esp_apptrace_mem_block_t mem_blocks_cfg[2])
+{
+    static uint8_t s_mem_blocks[2][CONFIG_APPTRACE_BUF_SIZE];
+
+    mem_blocks_cfg[0].start = s_mem_blocks[0];
+    mem_blocks_cfg[0].sz = CONFIG_APPTRACE_BUF_SIZE;
+    mem_blocks_cfg[1].start = s_mem_blocks[1];
+    mem_blocks_cfg[1].sz = CONFIG_APPTRACE_BUF_SIZE;
+}
+
+static esp_err_t esp_apptrace_riscv_lock(esp_apptrace_riscv_data_t *hw_data, esp_apptrace_tmo_t *tmo)
+{
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    esp_err_t ret = esp_apptrace_lock_take(&hw_data->lock, tmo);
+    if (ret != ESP_OK) {
+        return ESP_FAIL;
+    }
+#endif
+    return ESP_OK;
+}
+
+static esp_err_t esp_apptrace_riscv_unlock(esp_apptrace_riscv_data_t *hw_data)
+{
+    esp_err_t ret = ESP_OK;
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    ret = esp_apptrace_lock_give(&hw_data->lock);
+#endif
+    return ret;
+}
+
+/*****************************************************************************************/
+/***************************** Apptrace HW iface *****************************************/
+/*****************************************************************************************/
+
+static esp_err_t esp_apptrace_riscv_init(esp_apptrace_riscv_data_t *hw_data)
+{
+    int core_id = cpu_hal_get_core_id();
+
+    if (hw_data->inited == 0) {
+        esp_apptrace_mem_block_t mem_blocks_cfg[2];
+        esp_apptrace_get_up_buffers(mem_blocks_cfg);
+        esp_err_t res = esp_apptrace_membufs_init(&hw_data->membufs, mem_blocks_cfg);
+        if (res != ESP_OK) {
+            ESP_APPTRACE_LOGE("Failed to init membufs proto (%d)!", res);
+            return res;
+        }
+#if CONFIG_APPTRACE_LOCK_ENABLE
+        esp_apptrace_lock_init(&hw_data->lock);
+#endif
+    }
+    hw_data->inited |= 1 << core_id;
+    ESP_APPTRACE_LOGI("Apptrace initialized on CPU%d. Tracing control block @ %p.", core_id, &s_tracing_ctrl[core_id]);
+    s_tracing_ctrl[core_id].mem_blocks = hw_data->membufs.blocks;
+    for (int i = 0; i < 2; i++) {
+        ESP_APPTRACE_LOGD("Mem buf[%d] %d bytes @ %p (%p/%p)", i,
+            s_tracing_ctrl[core_id].mem_blocks[i].sz, s_tracing_ctrl[core_id].mem_blocks[i].start,
+            &(s_tracing_ctrl[core_id].mem_blocks[i].start), &(s_tracing_ctrl[core_id].mem_blocks[i].sz));
+    }
+    // notify host about control block address
+    int res = esp_apptrace_advertise_ctrl_block(&s_tracing_ctrl[core_id]);
+    assert(res == 0 && "Falied to send config to host!");
+
+    return ESP_OK;
+}
+
+static uint8_t *esp_apptrace_riscv_up_buffer_get(esp_apptrace_riscv_data_t *hw_data, uint32_t size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *ptr;
+
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return NULL;
+    }
+    esp_err_t res = esp_apptrace_riscv_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return NULL;
+    }
+
+    ptr = esp_apptrace_membufs_up_buffer_get(&hw_data->membufs, size, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_riscv_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return ptr;
+}
+
+static esp_err_t esp_apptrace_riscv_up_buffer_put(esp_apptrace_riscv_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    // Can avoid locking because esp_apptrace_membufs_up_buffer_put() just modifies buffer's header
+    esp_err_t res = esp_apptrace_membufs_up_buffer_put(&hw_data->membufs, ptr, tmo);
+    return res;
+}
+
+static void esp_apptrace_riscv_down_buffer_config(esp_apptrace_riscv_data_t *hw_data, uint8_t *buf, uint32_t size)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return;
+    }
+    esp_apptrace_membufs_down_buffer_config(&hw_data->membufs, buf, size);
+}
+
+static uint8_t *esp_apptrace_riscv_down_buffer_get(esp_apptrace_riscv_data_t *hw_data, uint32_t *size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *ptr;
+
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return NULL;
+    }
+    esp_err_t res = esp_apptrace_riscv_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return NULL;
+    }
+
+    ptr = esp_apptrace_membufs_down_buffer_get(&hw_data->membufs, size, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_riscv_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return ptr;
+}
+
+static esp_err_t esp_apptrace_riscv_down_buffer_put(esp_apptrace_riscv_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    // Can avoid locking because esp_apptrace_membufs_down_buffer_put() does nothing
+    /*esp_err_t res = esp_apptrace_riscv_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return res;
+    }*/
+
+    esp_err_t res = esp_apptrace_membufs_down_buffer_put(&hw_data->membufs, ptr, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    /*if (esp_apptrace_riscv_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }*/
+    return res;
+}
+
+static bool esp_apptrace_riscv_host_is_connected(esp_apptrace_riscv_data_t *hw_data)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return false;
+    }
+    return s_tracing_ctrl[cpu_hal_get_core_id()].ctrl & ESP_APPTRACE_RISCV_HOST_CONNECT ? true : false;
+}
+
+static esp_err_t esp_apptrace_riscv_flush_nolock(esp_apptrace_riscv_data_t *hw_data, uint32_t min_sz, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    return esp_apptrace_membufs_flush_nolock(&hw_data->membufs, min_sz, tmo);
+}
+
+static esp_err_t esp_apptrace_riscv_flush(esp_apptrace_riscv_data_t *hw_data, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_RISCV_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    esp_err_t res = esp_apptrace_riscv_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return res;
+    }
+
+    res = esp_apptrace_membufs_flush_nolock(&hw_data->membufs, 0, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_riscv_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return res;
+}
+
+/*****************************************************************************************/
+/************************** Membufs proto HW iface ***************************************/
+/*****************************************************************************************/
+
+static inline void esp_apptrace_riscv_buffer_swap_lock(void)
+{
+    extern uint32_t __esp_apptrace_riscv_updated;
+
+    // indicate to host that we are about to update.
+    // this is used only to place CPU into streaming mode at tracing startup
+    // before starting streaming host can halt us after we read  ESP_APPTRACE_RISCV_CTRL_REG and before we updated it
+    // HACK: in this case host will set breakpoint just after ESP_APPTRACE_RISCV_CTRL_REG update,
+    // here we set address to set bp at
+    // enter ERI update critical section
+    s_tracing_ctrl[cpu_hal_get_core_id()].stat = (uint32_t)&__esp_apptrace_riscv_updated;
+}
+
+static __attribute__((noinline)) void esp_apptrace_riscv_buffer_swap_unlock(void)
+{
+    // exit ERI update critical section
+    s_tracing_ctrl[cpu_hal_get_core_id()].stat = 0;
+    // TODO: currently host sets breakpoint, use break instruction to stop;
+    // it will allow to use ESP_APPTRACE_RISCV_STAT_REG for other purposes
+    asm volatile (
+        "    .global     __esp_apptrace_riscv_updated\n"
+        "__esp_apptrace_riscv_updated:\n"); // host will set bp here to resolve collision at streaming start
+}
+
+static esp_err_t esp_apptrace_riscv_buffer_swap_start(uint32_t curr_block_id)
+{
+    esp_err_t res = ESP_OK;
+
+    esp_apptrace_riscv_buffer_swap_lock();
+
+    uint32_t ctrl_reg = s_tracing_ctrl[cpu_hal_get_core_id()].ctrl;
+    uint32_t host_connected = ESP_APPTRACE_RISCV_HOST_CONNECT & ctrl_reg;
+    if (host_connected) {
+        uint32_t acked_block = ESP_APPTRACE_RISCV_BLOCK_ID_GET(ctrl_reg);
+        uint32_t host_to_read = ESP_APPTRACE_RISCV_BLOCK_LEN_GET(ctrl_reg);
+        if (host_to_read != 0 || acked_block != (curr_block_id & ESP_APPTRACE_RISCV_BLOCK_ID_MSK)) {
+            ESP_APPTRACE_LOGD("[%d]: Can not switch %x %d %x %x/%lx", cpu_hal_get_core_id(), ctrl_reg, host_to_read, acked_block,
+                curr_block_id & ESP_APPTRACE_RISCV_BLOCK_ID_MSK, curr_block_id);
+            res = ESP_ERR_NO_MEM;
+            goto _on_err;
+        }
+    }
+    return ESP_OK;
+_on_err:
+    esp_apptrace_riscv_buffer_swap_unlock();
+    return res;
+}
+
+static esp_err_t esp_apptrace_riscv_buffer_swap_end(uint32_t new_block_id, uint32_t prev_block_len)
+{
+    uint32_t ctrl_reg = s_tracing_ctrl[cpu_hal_get_core_id()].ctrl;
+    uint32_t host_connected = ESP_APPTRACE_RISCV_HOST_CONNECT & ctrl_reg;
+    s_tracing_ctrl[cpu_hal_get_core_id()].ctrl = ESP_APPTRACE_RISCV_BLOCK_ID(new_block_id) |
+              host_connected | ESP_APPTRACE_RISCV_BLOCK_LEN(prev_block_len);
+    esp_apptrace_riscv_buffer_swap_unlock();
+    return ESP_OK;
+}
+
+static esp_err_t esp_apptrace_riscv_buffer_swap(uint32_t new_block_id)
+{
+    /* do nothing */
+    return ESP_OK;
+}
+
+static bool esp_apptrace_riscv_host_data_pending(void)
+{
+    uint32_t ctrl_reg = s_tracing_ctrl[cpu_hal_get_core_id()].ctrl;
+    // ESP_APPTRACE_LOGV("%s() 0x%x", __func__, ctrl_reg);
+    return (ctrl_reg & ESP_APPTRACE_RISCV_HOST_DATA) ? true : false;
+}

components/app_trace/port/xtensa/port.c

@@ -0,0 +1,543 @@
+//
+// How It Works
+// ************
+
+// 1. Components Overview
+// ======================
+
+// Xtensa has useful feature: TRAX debug module. It allows recording program execution flow at run-time without disturbing CPU.
+// Exectution flow data are written to configurable Trace RAM block. Besides accessing Trace RAM itself TRAX module also allows to read/write
+// trace memory via its registers by means of JTAG, APB or ERI transactions.
+// ESP32 has two Xtensa cores with separate TRAX modules on them and provides two special memory regions to be used as trace memory.
+// Chip allows muxing access to those trace memory blocks in such a way that while one block is accessed by CPUs another one can be accessed by host
+// by means of reading/writing TRAX registers via JTAG. Blocks muxing is configurable at run-time and allows switching trace memory blocks between
+// accessors in round-robin fashion so they can read/write separate memory blocks without disturbing each other.
+// This module implements application tracing feature based on above mechanisms. It allows to transfer arbitrary user data to/from
+// host via JTAG with minimal impact on system performance. This module is implied to be used in the following tracing scheme.
+
+//                                                        ------>------                                         ----- (host components) -----
+//                                                        |           |                                         |                           |
+// -------------------   -----------------------     -----------------------     ----------------    ------     ---------   -----------------
+// |trace data source|-->|target tracing module|<--->|TRAX_MEM0 | TRAX_MEM1|---->|TRAX_DATA_REGS|<-->|JTAG|<--->|OpenOCD|-->|trace data sink|
+// -------------------   -----------------------     -----------------------     ----------------    ------     ---------   -----------------
+//                                 |                      |           |                                |
+//                                 |                      ------<------          ----------------      |
+//                                 |<------------------------------------------->|TRAX_CTRL_REGS|<---->|
+//                                                                               ----------------
+
+// In general tracing goes in the following way. User application requests tracing module to send some data by calling esp_apptrace_buffer_get(),
+// module allocates necessary buffer in current input trace block. Then user fills received buffer with data and calls esp_apptrace_buffer_put().
+// When current input trace block is filled with app data it is exposed to host and the second block becomes input one and buffer filling restarts.
+// While target application fills one TRAX block host reads another one via JTAG.
+// This module also allows communication in the opposite direction: from host to target. As it was said ESP32 and host can access different TRAX blocks
+// simultaneously, so while target writes trace data to one block host can write its own data (e.g. tracing commands) to another one then when
+// blocks are switched host receives trace data and target receives data written by host application. Target user application can read host data
+// by calling esp_apptrace_read() API.
+// To control buffer switching and for other communication purposes this implementation uses some TRAX registers. It is safe since HW TRAX tracing
+// can not be used along with application tracing feature so these registers are freely readable/writeable via JTAG from host and via ERI from ESP32 cores.
+// Overhead of this implementation on target CPU is produced only by allocating/managing buffers and copying of data.
+// On the host side special OpenOCD command must be used to read trace data.
+
+// 2. TRAX Registers layout
+// ========================
+
+// This module uses two TRAX HW registers to communicate with host SW (OpenOCD).
+//  - Control register uses TRAX_DELAYCNT as storage. Only lower 24 bits of TRAX_DELAYCNT are writable. Control register has the following bitfields:
+//   | 31..XXXXXX..24 | 23 .(host_connect). 23| 22..(block_id)..15 | 14..(block_len)..0 |
+//    14..0  bits - actual length of user data in trace memory block. Target updates it every time it fills memory block and exposes it to host.
+//                  Host writes zero to this field when it finishes reading exposed block;
+//    21..15 bits - trace memory block transfer ID. Block counter. It can overflow. Updated by target, host should not modify it. Actually can be 2 bits;
+//    22     bit  - 'host data present' flag. If set to one there is data from host, otherwise - no host data;
+//    23     bit  - 'host connected' flag. If zero then host is not connected and tracing module works in post-mortem mode, otherwise in streaming mode;
+// - Status register uses TRAX_TRIGGERPC as storage. If this register is not zero then current CPU is changing TRAX registers and
+//   this register holds address of the instruction which application will execute when it finishes with those registers modifications.
+//   See 'Targets Connection' setion for details.
+
+// 3. Modes of operation
+// =====================
+
+// This module supports two modes of operation:
+//  - Post-mortem mode. This is the default mode. In this mode application tracing module does not check whether host has read all the data from block
+//    exposed to it and switches block in any case. The mode does not need host interaction for operation and so can be useful when only the latest
+//    trace data are necessary, e.g. for analyzing crashes. On panic the latest data from current input block are exposed to host and host can read them.
+//    It can happen that system panic occurs when there are very small amount of data which are not exposed to host yet (e.g. crash just after the
+//    TRAX block switch). In this case the previous 16KB of collected data will be dropped and host will see the latest, but very small piece of trace.
+//    It can be insufficient to diagnose the problem. To avoid such situations there is menuconfig option
+//    CONFIG_APPTRACE_POSTMORTEM_FLUSH_THRESH
+//    which controls the threshold for flushing data in case of panic.
+//  - Streaming mode. Tracing module enters this mode when host connects to target and sets respective bits in control registers (per core).
+//    In this mode before switching the block tracing module waits for the host to read all the data from the previously exposed block.
+//    On panic tracing module also waits (timeout is configured via menuconfig via CONFIG_APPTRACE_ONPANIC_HOST_FLUSH_TMO) for the host to read all data.
+
+// 4. Communication Protocol
+// =========================
+
+// 4.1 Trace Memory Blocks
+// -----------------------
+
+// Communication is controlled via special register. Host periodically polls control register on each core to find out if there are any data available.
+// When current input memory block is filled it is exposed to host and 'block_len' and 'block_id' fields are updated in the control register.
+// Host reads new register value and according to it's value starts reading data from exposed block. Meanwhile target starts filling another trace block.
+// When host finishes reading the block it clears 'block_len' field in control register indicating to the target that it is ready to accept the next one.
+// If the host has some data to transfer to the target it writes them to trace memory block before clearing 'block_len' field. Then it sets
+// 'host_data_present' bit and clears 'block_len' field in control register. Upon every block switch target checks 'host_data_present' bit and if it is set
+// reads them to down buffer before writing any trace data to switched TRAX block.
+
+// 4.2 User Data Chunks Level
+// --------------------------
+
+// Since trace memory block is shared between user data chunks and data copying is performed on behalf of the API user (in its normal context) in
+// multithreading environment it can happen that task/ISR which copies data is preempted by another high prio task/ISR. So it is possible situation
+// that task/ISR will fail to complete filling its data chunk before the whole trace block is exposed to the host. To handle such conditions tracing
+// module prepends all user data chunks with header which contains allocated buffer size and actual data length within it. OpenOCD command
+// which reads application traces reports error when it reads incomplete user data block.
+// Data which are transffered from host to target are also prepended with a header. Down channel data header is simple and consists of one two bytes field
+// containing length of host data following the header.
+
+// 4.3 Data Buffering
+// ------------------
+
+// It takes some time for the host to read TRAX memory block via JTAG. In streaming mode it can happen that target has filled its TRAX block, but host
+// has not completed reading of the previous one yet. So in this case time critical tracing calls (which can not be delayed for too long time due to
+// the lack of free memory in TRAX block) can be dropped. To avoid such scenarios tracing module implements data buffering. Buffered data will be sent
+// to the host later when TRAX block switch occurs. The maximum size of the buffered data is controlled by menuconfig option
+// CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX.
+
+// 4.4 Target Connection/Disconnection
+// -----------------------------------
+
+// When host is going to start tracing in streaming mode it needs to put both ESP32 cores into initial state when 'host connected' bit is set
+// on both cores. To accomplish this host halts both cores and sets this bit in TRAX registers. But target code can be halted in state when it has read control
+// register but has not updated its value. To handle such situations target code indicates to the host that it is updating control register by writing
+// non-zero value to status register. Actually it writes address of the instruction which it will execute when it finishes with
+// the registers update. When target is halted during control register update host sets breakpoint at the address from status register and resumes CPU.
+// After target code finishes with register update it is halted on breakpoint, host detects it and safely sets 'host connected' bit. When both cores
+// are set up they are resumed. Tracing starts without further intrusion into CPUs work.
+// When host is going to stop tracing in streaming mode it needs to disconnect targets. Disconnection process is done using the same algorithm
+// as for connecting, but 'host connected' bits are cleared on ESP32 cores.
+
+// 5. Module Access Synchronization
+// ================================
+
+// Access to internal module's data is synchronized with custom mutex. Mutex is a wrapper for portMUX_TYPE and uses almost the same sync mechanism as in
+// vPortCPUAcquireMutex/vPortCPUReleaseMutex. The mechanism uses S32C1I Xtensa instruction to implement exclusive access to module's data from tasks and
+// ISRs running on both cores. Also custom mutex allows specifying timeout for locking operation. Locking routine checks underlaying mutex in cycle until
+// it gets its ownership or timeout expires. The differences of application tracing module's mutex implementation from vPortCPUAcquireMutex/vPortCPUReleaseMutex are:
+// - Support for timeouts.
+// - Local IRQs for CPU which owns the mutex are disabled till the call to unlocking routine. This is made to avoid possible task's prio inversion.
+//   When low prio task takes mutex and enables local IRQs gets preempted by high prio task which in its turn can try to acquire mutex using infinite timeout.
+//   So no local task switch occurs when mutex is locked. But this does not apply to tasks on another CPU.
+//   WARNING: Priority inversion can happen when low prio task works on one CPU and medium and high prio tasks work on another.
+// WARNING: Care must be taken when selecting timeout values for trace calls from ISRs. Tracing module does not care about watchdogs when waiting
+// on internal locks and for host to complete previous block reading, so if timeout value exceeds watchdog's one it can lead to the system reboot.
+
+// 6. Timeouts
+// ===========
+
+// Timeout mechanism is based on xthal_get_ccount() routine and supports timeout values in microseconds.
+// There are two situations when task/ISR can be delayed by tracing API call. Timeout mechanism takes into account both conditions:
+// - Trace data are locked by another task/ISR. When wating on trace data lock.
+// - Current TRAX memory input block is full when working in streaming mode (host is connected). When waiting for host to complete previous block reading.
+// When wating for any of above conditions xthal_get_ccount() is called periodically to calculate time elapsed from trace API routine entry. When elapsed
+// time exceeds specified timeout value operation is canceled and ESP_ERR_TIMEOUT code is returned.
+#include "sdkconfig.h"
+#include "soc/soc.h"
+#include "soc/dport_access.h"
+#if CONFIG_IDF_TARGET_ESP32
+#include "soc/dport_reg.h"
+#elif CONFIG_IDF_TARGET_ESP32S2
+#include "soc/sensitive_reg.h"
+#endif
+#include "eri.h"
+#include "trax.h"
+#include "esp_log.h"
+#include "esp_app_trace_membufs_proto.h"
+#include "esp_app_trace_port.h"
+
+// TODO: move these (and same definitions in trax.c to dport_reg.h)
+#if CONFIG_IDF_TARGET_ESP32
+#define TRACEMEM_MUX_PROBLK0_APPBLK1            0
+#define TRACEMEM_MUX_BLK0_ONLY                  1
+#define TRACEMEM_MUX_BLK1_ONLY                  2
+#define TRACEMEM_MUX_PROBLK1_APPBLK0            3
+#elif CONFIG_IDF_TARGET_ESP32S2
+#define TRACEMEM_MUX_BLK0_NUM                   19
+#define TRACEMEM_MUX_BLK1_NUM                   20
+#define TRACEMEM_BLK_NUM2ADDR(_n_)              (0x3FFB8000UL + 0x4000UL*((_n_)-4))
+#endif
+
+// TRAX is disabled, so we use its registers for our own purposes
+// | 31..XXXXXX..24 | 23 .(host_connect). 23 | 22 .(host_data). 22| 21..(block_id)..15 | 14..(block_len)..0 |
+#define ESP_APPTRACE_TRAX_CTRL_REG              ERI_TRAX_DELAYCNT
+#define ESP_APPTRACE_TRAX_STAT_REG              ERI_TRAX_TRIGGERPC
+
+#define ESP_APPTRACE_TRAX_BLOCK_LEN_MSK         0x7FFFUL
+#define ESP_APPTRACE_TRAX_BLOCK_LEN(_l_)        ((_l_) & ESP_APPTRACE_TRAX_BLOCK_LEN_MSK)
+#define ESP_APPTRACE_TRAX_BLOCK_LEN_GET(_v_)    ((_v_) & ESP_APPTRACE_TRAX_BLOCK_LEN_MSK)
+#define ESP_APPTRACE_TRAX_BLOCK_ID_MSK          0x7FUL
+#define ESP_APPTRACE_TRAX_BLOCK_ID(_id_)        (((_id_) & ESP_APPTRACE_TRAX_BLOCK_ID_MSK) << 15)
+#define ESP_APPTRACE_TRAX_BLOCK_ID_GET(_v_)     (((_v_) >> 15) & ESP_APPTRACE_TRAX_BLOCK_ID_MSK)
+#define ESP_APPTRACE_TRAX_HOST_DATA             (1 << 22)
+#define ESP_APPTRACE_TRAX_HOST_CONNECT          (1 << 23)
+
+#define ESP_APPTRACE_TRAX_INITED(_hw_)          ((_hw_)->inited & (1 << cpu_hal_get_core_id()))
+
+#if CONFIG_IDF_TARGET_ESP32
+static uint8_t * const s_trax_blocks[] = {
+    (uint8_t *) 0x3FFFC000,
+    (uint8_t *) 0x3FFF8000
+};
+#elif CONFIG_IDF_TARGET_ESP32S2
+static uint8_t * const s_trax_blocks[] = {
+    (uint8_t *)TRACEMEM_BLK_NUM2ADDR(TRACEMEM_MUX_BLK0_NUM),
+    (uint8_t *)TRACEMEM_BLK_NUM2ADDR(TRACEMEM_MUX_BLK1_NUM)
+};
+#endif
+
+#define ESP_APPTRACE_TRAX_BLOCK_SIZE            (0x4000UL)
+
+/** TRAX HW transport data */
+typedef struct {
+    uint8_t                             inited;
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    esp_apptrace_lock_t                 lock;   // sync lock
+#endif
+    esp_apptrace_membufs_proto_data_t   membufs;
+} esp_apptrace_trax_data_t;
+
+
+static esp_err_t esp_apptrace_trax_init(esp_apptrace_trax_data_t *hw_data);
+static esp_err_t esp_apptrace_trax_flush(esp_apptrace_trax_data_t *hw_data, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_trax_flush_nolock(esp_apptrace_trax_data_t *hw_data, uint32_t min_sz, esp_apptrace_tmo_t *tmo);
+static uint8_t *esp_apptrace_trax_up_buffer_get(esp_apptrace_trax_data_t *hw_data, uint32_t size, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_trax_up_buffer_put(esp_apptrace_trax_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+static void esp_apptrace_trax_down_buffer_config(esp_apptrace_trax_data_t *hw_data, uint8_t *buf, uint32_t size);
+static uint8_t *esp_apptrace_trax_down_buffer_get(esp_apptrace_trax_data_t *hw_data, uint32_t *size, esp_apptrace_tmo_t *tmo);
+static esp_err_t esp_apptrace_trax_down_buffer_put(esp_apptrace_trax_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+static bool esp_apptrace_trax_host_is_connected(esp_apptrace_trax_data_t *hw_data);
+static esp_err_t esp_apptrace_trax_buffer_swap_start(uint32_t curr_block_id);
+static esp_err_t esp_apptrace_trax_buffer_swap(uint32_t new_block_id);
+static esp_err_t esp_apptrace_trax_buffer_swap_end(uint32_t new_block_id, uint32_t prev_block_len);
+static bool esp_apptrace_trax_host_data_pending(void);
+
+
+const static char *TAG = "esp_apptrace";
+
+esp_apptrace_hw_t *esp_apptrace_uart_hw_get(int num, void **data)
+{
+    return NULL;
+}
+
+esp_apptrace_hw_t *esp_apptrace_jtag_hw_get(void **data)
+{
+#if CONFIG_APPTRACE_DEST_JTAG
+    static esp_apptrace_membufs_proto_hw_t s_trax_proto_hw = {
+        .swap_start = esp_apptrace_trax_buffer_swap_start,
+        .swap = esp_apptrace_trax_buffer_swap,
+        .swap_end = esp_apptrace_trax_buffer_swap_end,
+        .host_data_pending = esp_apptrace_trax_host_data_pending,
+    };
+    static esp_apptrace_trax_data_t s_trax_hw_data = {
+        .membufs = {
+            .hw = &s_trax_proto_hw,
+        },
+    };
+    static esp_apptrace_hw_t s_trax_hw = {
+        .init = (esp_err_t (*)(void *))esp_apptrace_trax_init,
+        .get_up_buffer = (uint8_t *(*)(void *, uint32_t, esp_apptrace_tmo_t *))esp_apptrace_trax_up_buffer_get,
+        .put_up_buffer = (esp_err_t (*)(void *, uint8_t *, esp_apptrace_tmo_t *))esp_apptrace_trax_up_buffer_put,
+        .flush_up_buffer_nolock = (esp_err_t (*)(void *, uint32_t, esp_apptrace_tmo_t *))esp_apptrace_trax_flush_nolock,
+        .flush_up_buffer = (esp_err_t (*)(void *, esp_apptrace_tmo_t *))esp_apptrace_trax_flush,
+        .down_buffer_config = (void (*)(void *, uint8_t *, uint32_t ))esp_apptrace_trax_down_buffer_config,
+        .get_down_buffer = (uint8_t *(*)(void *, uint32_t *, esp_apptrace_tmo_t *))esp_apptrace_trax_down_buffer_get,
+        .put_down_buffer = (esp_err_t (*)(void *, uint8_t *, esp_apptrace_tmo_t *))esp_apptrace_trax_down_buffer_put,
+        .host_is_connected = (bool (*)(void *))esp_apptrace_trax_host_is_connected,
+    };
+    *data = &s_trax_hw_data;
+    return &s_trax_hw;
+#else
+    return NULL;
+#endif
+}
+
+static esp_err_t esp_apptrace_trax_lock(esp_apptrace_trax_data_t *hw_data, esp_apptrace_tmo_t *tmo)
+{
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    esp_err_t ret = esp_apptrace_lock_take(&hw_data->lock, tmo);
+    if (ret != ESP_OK) {
+        return ESP_FAIL;
+    }
+#endif
+    return ESP_OK;
+}
+
+static esp_err_t esp_apptrace_trax_unlock(esp_apptrace_trax_data_t *hw_data)
+{
+    esp_err_t ret = ESP_OK;
+#if CONFIG_APPTRACE_LOCK_ENABLE
+    ret = esp_apptrace_lock_give(&hw_data->lock);
+#endif
+    return ret;
+}
+
+static inline void esp_apptrace_trax_hw_init(void)
+{
+    // Stop trace, if any (on the current CPU)
+    eri_write(ERI_TRAX_TRAXCTRL, TRAXCTRL_TRSTP);
+    eri_write(ERI_TRAX_TRAXCTRL, TRAXCTRL_TMEN);
+    eri_write(ESP_APPTRACE_TRAX_CTRL_REG, ESP_APPTRACE_TRAX_BLOCK_ID(0));
+    // this is for OpenOCD to let him know where stub entries vector is resided
+    // must be read by host before any transfer using TRAX
+    eri_write(ESP_APPTRACE_TRAX_STAT_REG, 0);
+
+    ESP_APPTRACE_LOGI("Initialized TRAX on CPU%d", cpu_hal_get_core_id());
+}
+
+static inline void esp_apptrace_trax_select_memory_block(int block_num)
+{
+    // select memory block to be exposed to the TRAX module (accessed by host)
+#if CONFIG_IDF_TARGET_ESP32
+    DPORT_WRITE_PERI_REG(DPORT_TRACEMEM_MUX_MODE_REG, block_num ? TRACEMEM_MUX_BLK0_ONLY : TRACEMEM_MUX_BLK1_ONLY);
+#elif CONFIG_IDF_TARGET_ESP32S2
+    WRITE_PERI_REG(DPORT_PMS_OCCUPY_3_REG, block_num ? BIT(TRACEMEM_MUX_BLK0_NUM-4) : BIT(TRACEMEM_MUX_BLK1_NUM-4));
+#endif
+}
+
+static inline void esp_apptrace_trax_memory_enable(void)
+{
+#if CONFIG_IDF_TARGET_ESP32
+        /* Enable trace memory on PRO CPU */
+        DPORT_WRITE_PERI_REG(DPORT_PRO_TRACEMEM_ENA_REG, DPORT_PRO_TRACEMEM_ENA_M);
+#if CONFIG_FREERTOS_UNICORE == 0
+        /* Enable trace memory on APP CPU */
+        DPORT_WRITE_PERI_REG(DPORT_APP_TRACEMEM_ENA_REG, DPORT_APP_TRACEMEM_ENA_M);
+#endif
+#endif
+}
+
+/*****************************************************************************************/
+/***************************** Apptrace HW iface *****************************************/
+/*****************************************************************************************/
+
+static esp_err_t esp_apptrace_trax_init(esp_apptrace_trax_data_t *hw_data)
+{
+    int core_id = cpu_hal_get_core_id();
+
+    // 'esp_apptrace_trax_init()' is called on every core, so ensure to do main initialization only once
+    if (core_id == 0) {
+        esp_apptrace_mem_block_t mem_blocks_cfg[2] = {
+            {
+                .start = s_trax_blocks[0],
+                .sz = ESP_APPTRACE_TRAX_BLOCK_SIZE
+            },
+            {
+                .start = s_trax_blocks[1],
+                .sz = ESP_APPTRACE_TRAX_BLOCK_SIZE
+            },
+        };
+        esp_err_t res = esp_apptrace_membufs_init(&hw_data->membufs, mem_blocks_cfg);
+        if (res != ESP_OK) {
+            ESP_APPTRACE_LOGE("Failed to init membufs proto (%d)!", res);
+            return res;
+        }
+#if CONFIG_APPTRACE_LOCK_ENABLE
+        esp_apptrace_lock_init(&hw_data->lock);
+#endif
+        esp_apptrace_trax_memory_enable();
+        esp_apptrace_trax_select_memory_block(0);
+    }
+    // init TRAX on this CPU
+    esp_apptrace_trax_hw_init();
+    hw_data->inited |= 1 << core_id;
+
+    return ESP_OK;
+}
+
+static uint8_t *esp_apptrace_trax_up_buffer_get(esp_apptrace_trax_data_t *hw_data, uint32_t size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *ptr;
+
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return NULL;
+    }
+    esp_err_t res = esp_apptrace_trax_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return NULL;
+    }
+
+    ptr = esp_apptrace_membufs_up_buffer_get(&hw_data->membufs, size, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_trax_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return ptr;
+}
+
+static esp_err_t esp_apptrace_trax_up_buffer_put(esp_apptrace_trax_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    // Can avoid locking because esp_apptrace_membufs_up_buffer_put() just modifies buffer's header
+    esp_err_t res = esp_apptrace_membufs_up_buffer_put(&hw_data->membufs, ptr, tmo);
+    return res;
+}
+
+static void esp_apptrace_trax_down_buffer_config(esp_apptrace_trax_data_t *hw_data, uint8_t *buf, uint32_t size)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return;
+    }
+    esp_apptrace_membufs_down_buffer_config(&hw_data->membufs, buf, size);
+}
+
+static uint8_t *esp_apptrace_trax_down_buffer_get(esp_apptrace_trax_data_t *hw_data, uint32_t *size, esp_apptrace_tmo_t *tmo)
+{
+    uint8_t *ptr;
+
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return NULL;
+    }
+    esp_err_t res = esp_apptrace_trax_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return NULL;
+    }
+
+    ptr = esp_apptrace_membufs_down_buffer_get(&hw_data->membufs, size, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_trax_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return ptr;
+}
+
+static esp_err_t esp_apptrace_trax_down_buffer_put(esp_apptrace_trax_data_t *hw_data, uint8_t *ptr, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    // Can avoid locking because esp_apptrace_membufs_down_buffer_put() does nothing
+    /*esp_err_t res = esp_apptrace_trax_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return res;
+    }*/
+
+    esp_err_t res = esp_apptrace_membufs_down_buffer_put(&hw_data->membufs, ptr, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    /*if (esp_apptrace_trax_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }*/
+    return res;
+}
+
+static bool esp_apptrace_trax_host_is_connected(esp_apptrace_trax_data_t *hw_data)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return false;
+    }
+    return eri_read(ESP_APPTRACE_TRAX_CTRL_REG) & ESP_APPTRACE_TRAX_HOST_CONNECT ? true : false;
+}
+
+static esp_err_t esp_apptrace_trax_flush_nolock(esp_apptrace_trax_data_t *hw_data, uint32_t min_sz, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    return esp_apptrace_membufs_flush_nolock(&hw_data->membufs, min_sz, tmo);
+}
+
+static esp_err_t esp_apptrace_trax_flush(esp_apptrace_trax_data_t *hw_data, esp_apptrace_tmo_t *tmo)
+{
+    if (!ESP_APPTRACE_TRAX_INITED(hw_data)) {
+        return ESP_ERR_INVALID_STATE;
+    }
+    esp_err_t res = esp_apptrace_trax_lock(hw_data, tmo);
+    if (res != ESP_OK) {
+        return res;
+    }
+
+    res = esp_apptrace_membufs_flush_nolock(&hw_data->membufs, 0, tmo);
+
+    // now we can safely unlock apptrace to allow other tasks/ISRs to get other buffers and write their data
+    if (esp_apptrace_trax_unlock(hw_data) != ESP_OK) {
+        assert(false && "Failed to unlock apptrace data!");
+    }
+    return res;
+}
+
+/*****************************************************************************************/
+/************************** Membufs proto HW iface ***************************************/
+/*****************************************************************************************/
+
+static inline void esp_apptrace_trax_buffer_swap_lock(void)
+{
+    extern uint32_t __esp_apptrace_trax_eri_updated;
+
+    // indicate to host that we are about to update.
+    // this is used only to place CPU into streaming mode at tracing startup
+    // before starting streaming host can halt us after we read  ESP_APPTRACE_TRAX_CTRL_REG and before we updated it
+    // HACK: in this case host will set breakpoint just after ESP_APPTRACE_TRAX_CTRL_REG update,
+    // here we set address to set bp at
+    // enter ERI update critical section
+    eri_write(ESP_APPTRACE_TRAX_STAT_REG, (uint32_t)&__esp_apptrace_trax_eri_updated);
+}
+
+static __attribute__((noinline)) void esp_apptrace_trax_buffer_swap_unlock(void)
+{
+    // exit ERI update critical section
+    eri_write(ESP_APPTRACE_TRAX_STAT_REG, 0x0);
+    // TODO: currently host sets breakpoint, use break instruction to stop;
+    // it will allow to use ESP_APPTRACE_TRAX_STAT_REG for other purposes
+    asm volatile (
+        "    .global     __esp_apptrace_trax_eri_updated\n"
+        "__esp_apptrace_trax_eri_updated:\n"); // host will set bp here to resolve collision at streaming start
+}
+
+static esp_err_t esp_apptrace_trax_buffer_swap_start(uint32_t curr_block_id)
+{
+    esp_err_t res = ESP_OK;
+
+    esp_apptrace_trax_buffer_swap_lock();
+
+    uint32_t ctrl_reg = eri_read(ESP_APPTRACE_TRAX_CTRL_REG);
+    uint32_t host_connected = ESP_APPTRACE_TRAX_HOST_CONNECT & ctrl_reg;
+    if (host_connected) {
+        uint32_t acked_block = ESP_APPTRACE_TRAX_BLOCK_ID_GET(ctrl_reg);
+        uint32_t host_to_read = ESP_APPTRACE_TRAX_BLOCK_LEN_GET(ctrl_reg);
+        if (host_to_read != 0 || acked_block != (curr_block_id & ESP_APPTRACE_TRAX_BLOCK_ID_MSK)) {
+            ESP_APPTRACE_LOGD("HC[%d]: Can not switch %x %d %x %x/%lx", cpu_hal_get_core_id(), ctrl_reg, host_to_read, acked_block,
+                curr_block_id & ESP_APPTRACE_TRAX_BLOCK_ID_MSK, curr_block_id);
+            res = ESP_ERR_NO_MEM;
+            goto _on_err;
+        }
+    }
+    return ESP_OK;
+_on_err:
+    esp_apptrace_trax_buffer_swap_unlock();
+    return res;
+}
+
+static esp_err_t esp_apptrace_trax_buffer_swap_end(uint32_t new_block_id, uint32_t prev_block_len)
+{
+    uint32_t ctrl_reg = eri_read(ESP_APPTRACE_TRAX_CTRL_REG);
+    uint32_t host_connected = ESP_APPTRACE_TRAX_HOST_CONNECT & ctrl_reg;
+    eri_write(ESP_APPTRACE_TRAX_CTRL_REG, ESP_APPTRACE_TRAX_BLOCK_ID(new_block_id) |
+              host_connected | ESP_APPTRACE_TRAX_BLOCK_LEN(prev_block_len));
+    esp_apptrace_trax_buffer_swap_unlock();
+    return ESP_OK;
+}
+
+static esp_err_t esp_apptrace_trax_buffer_swap(uint32_t new_block_id)
+{
+    esp_apptrace_trax_select_memory_block(new_block_id);
+    return ESP_OK;
+}
+
+static bool esp_apptrace_trax_host_data_pending(void)
+{
+    uint32_t ctrl_reg = eri_read(ESP_APPTRACE_TRAX_CTRL_REG);
+    return (ctrl_reg & ESP_APPTRACE_TRAX_HOST_DATA) ? true : false;
+}

components/app_trace/private_include/esp_app_trace_membufs_proto.h

@@ -0,0 +1,70 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#ifndef ESP_APP_TRACE_MEMBUFS_PROTO_H_
+#define ESP_APP_TRACE_MEMBUFS_PROTO_H_
+
+#include "esp_app_trace_util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** TRAX HW transport state */
+typedef struct {
+    uint32_t                   in_block;     // input block ID
+    // TODO: change to uint16_t
+    uint32_t                   markers[2];   // block filling level markers
+} esp_apptrace_membufs_state_t;
+
+/** memory block parameters,
+ * should be packed, because it is read from the host */
+typedef struct {
+    uint8_t   *start;   // start address
+    uint32_t   sz;      // size
+} esp_apptrace_mem_block_t;
+
+typedef struct {
+    esp_err_t (*swap_start)(uint32_t curr_block_id);
+    esp_err_t (*swap)(uint32_t new_block_id);
+    esp_err_t (*swap_end)(uint32_t new_block_id, uint32_t prev_block_len);
+    bool (*host_data_pending)(void);
+} esp_apptrace_membufs_proto_hw_t;
+
+typedef struct {
+    esp_apptrace_membufs_proto_hw_t *       hw;
+    volatile esp_apptrace_membufs_state_t   state;       // state
+    esp_apptrace_mem_block_t                blocks[2];   // memory blocks
+#if CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX > 0
+    // ring buffer control struct for pending user blocks
+    esp_apptrace_rb_t                   rb_pend;
+    // storage for pending user blocks
+    uint8_t                             pending_data[CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX + 1];
+#endif
+    // ring buffer control struct for data from host (down buffer)
+    esp_apptrace_rb_t                       rb_down;
+} esp_apptrace_membufs_proto_data_t;
+
+esp_err_t esp_apptrace_membufs_init(esp_apptrace_membufs_proto_data_t *proto, const esp_apptrace_mem_block_t blocks_cfg[2]);
+void esp_apptrace_membufs_down_buffer_config(esp_apptrace_membufs_proto_data_t *data, uint8_t *buf, uint32_t size);
+uint8_t *esp_apptrace_membufs_down_buffer_get(esp_apptrace_membufs_proto_data_t *proto, uint32_t *size, esp_apptrace_tmo_t *tmo);
+esp_err_t esp_apptrace_membufs_down_buffer_put(esp_apptrace_membufs_proto_data_t *proto, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+uint8_t *esp_apptrace_membufs_up_buffer_get(esp_apptrace_membufs_proto_data_t *proto, uint32_t size, esp_apptrace_tmo_t *tmo);
+esp_err_t esp_apptrace_membufs_up_buffer_put(esp_apptrace_membufs_proto_data_t *proto, uint8_t *ptr, esp_apptrace_tmo_t *tmo);
+esp_err_t esp_apptrace_membufs_flush_nolock(esp_apptrace_membufs_proto_data_t *proto, uint32_t min_sz, esp_apptrace_tmo_t *tmo);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

components/app_trace/project_include.cmake

@@ -5,12 +5,24 @@ function(idf_create_coverage_report report_dir)
     set(gcov_tool ${CONFIG_SDK_TOOLPREFIX}gcov)
     idf_build_get_property(project_name PROJECT_NAME)
 
-    add_custom_target(lcov-report
+    add_custom_target(pre-cov-report
         COMMENT "Generating coverage report in: ${report_dir}"
         COMMAND ${CMAKE_COMMAND} -E echo "Using gcov: ${gcov_tool}"
         COMMAND ${CMAKE_COMMAND} -E make_directory ${report_dir}/html
+        )
+
+    add_custom_target(lcov-report
+        COMMENT "WARNING: lcov-report is deprecated. Please use gcovr-report instead."
         COMMAND lcov --gcov-tool ${gcov_tool} -c -d ${CMAKE_CURRENT_BINARY_DIR} -o ${report_dir}/${project_name}.info
-        COMMAND genhtml -o ${report_dir}/html ${report_dir}/${project_name}.info)
+        COMMAND genhtml -o ${report_dir}/html ${report_dir}/${project_name}.info
+        DEPENDS pre-cov-report
+        )
+
+    add_custom_target(gcovr-report
+        COMMAND gcovr -r ${project_dir} --gcov-executable ${gcov_tool} -s --html-details ${report_dir}/html/index.html
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+        DEPENDS pre-cov-report
+        )
 endfunction()
 
 # idf_clean_coverage_report
@@ -20,4 +32,4 @@ function(idf_clean_coverage_report report_dir)
     add_custom_target(cov-data-clean
         COMMENT "Clean coverage report in: ${report_dir}"
         COMMAND ${CMAKE_COMMAND} -E remove_directory ${report_dir})
-endfunction()
+endfunction()

components/app_trace/sdkconfig.rename

@@ -3,10 +3,34 @@
 
 CONFIG_ESP32_APPTRACE_DESTINATION      					CONFIG_APPTRACE_DESTINATION
 CONFIG_ESP32_APPTRACE_DEST_NONE							CONFIG_APPTRACE_DEST_NONE
-CONFIG_ESP32_APPTRACE_DEST_TRAX							CONFIG_APPTRACE_DEST_TRAX
+CONFIG_ESP32_APPTRACE_DEST_TRAX							CONFIG_APPTRACE_DEST_JTAG
 CONFIG_ESP32_APPTRACE_ENABLE							CONFIG_APPTRACE_ENABLE
 CONFIG_ESP32_APPTRACE_LOCK_ENABLE						CONFIG_APPTRACE_LOCK_ENABLE
 CONFIG_ESP32_APPTRACE_ONPANIC_HOST_FLUSH_TMO			CONFIG_APPTRACE_ONPANIC_HOST_FLUSH_TMO
 CONFIG_ESP32_APPTRACE_POSTMORTEM_FLUSH_TRAX_THRESH      CONFIG_APPTRACE_POSTMORTEM_FLUSH_THRESH
 CONFIG_ESP32_APPTRACE_PENDING_DATA_SIZE_MAX				CONFIG_APPTRACE_PENDING_DATA_SIZE_MAX
-CONFIG_ESP32_GCOV_ENABLE								CONFIG_APPTRACE_GCOV_ENABLE
+CONFIG_ESP32_GCOV_ENABLE								CONFIG_APPTRACE_GCOV_ENABLE
+
+CONFIG_SYSVIEW_ENABLE							        CONFIG_APPTRACE_SV_ENABLE
+CONFIG_SYSVIEW_TS_SOURCE							    CONFIG_APPTRACE_SV_TS_SOURCE
+CONFIG_SYSVIEW_TS_SOURCE_CCOUNT							CONFIG_APPTRACE_SV_TS_SOURCE_CCOUNT
+CONFIG_SYSVIEW_TS_SOURCE_TIMER_00						CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_00
+CONFIG_SYSVIEW_TS_SOURCE_TIMER_01						CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_01
+CONFIG_SYSVIEW_TS_SOURCE_TIMER_10						CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_10
+CONFIG_SYSVIEW_TS_SOURCE_TIMER_11						CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_11
+CONFIG_SYSVIEW_TS_SOURCE_ESP_TIMER						CONFIG_APPTRACE_SV_TS_SOURCE_ESP_TIMER
+CONFIG_SYSVIEW_MAX_TASKS							    CONFIG_APPTRACE_SV_MAX_TASKS
+CONFIG_SYSVIEW_BUF_WAIT_TMO							    CONFIG_APPTRACE_SV_BUF_WAIT_TMO
+CONFIG_SYSVIEW_EVT_OVERFLOW_ENABLE						CONFIG_APPTRACE_SV_EVT_OVERFLOW_ENABLE
+CONFIG_SYSVIEW_EVT_ISR_ENTER_ENABLE						CONFIG_APPTRACE_SV_EVT_ISR_ENTER_ENABLE
+CONFIG_SYSVIEW_EVT_ISR_EXIT_ENABLE						CONFIG_APPTRACE_SV_EVT_ISR_EXIT_ENABLE
+CONFIG_SYSVIEW_EVT_ISR_TO_SCHEDULER_ENABLE				CONFIG_APPTRACE_SV_EVT_ISR_TO_SCHED_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_START_EXEC_ENABLE				CONFIG_APPTRACE_SV_EVT_TASK_START_EXEC_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_STOP_EXEC_ENABLE				CONFIG_APPTRACE_SV_EVT_TASK_STOP_EXEC_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_START_READY_ENABLE				CONFIG_APPTRACE_SV_EVT_TASK_START_READY_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_STOP_READY_ENABLE				CONFIG_APPTRACE_SV_EVT_TASK_STOP_READY_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_CREATE_ENABLE					CONFIG_APPTRACE_SV_EVT_TASK_CREATE_ENABLE
+CONFIG_SYSVIEW_EVT_TASK_TERMINATE_ENABLE				CONFIG_APPTRACE_SV_EVT_TASK_TERMINATE_ENABLE
+CONFIG_SYSVIEW_EVT_IDLE_ENABLE							CONFIG_APPTRACE_SV_EVT_IDLE_ENABLE
+CONFIG_SYSVIEW_EVT_TIMER_ENTER_ENABLE					CONFIG_APPTRACE_SV_EVT_TIMER_ENTER_ENABLE
+CONFIG_SYSVIEW_EVT_TIMER_EXIT_ENABLE					CONFIG_APPTRACE_SV_EVT_TIMER_EXIT_ENABLE

components/app_trace/sys_view/Config/Global.h

@@ -88,7 +88,7 @@ Purpose : Global types
   #else
     #define U64_C(x) x##ULL
   #endif
-#else 
+#else
   //
   // C99 compliant compiler
   //

components/app_trace/sys_view/SEGGER/SEGGER_RTT.h

@@ -58,7 +58,7 @@
 ---------------------------END-OF-HEADER------------------------------
 File    : SEGGER_RTT.h
 Purpose : Implementation of SEGGER real-time transfer which allows
-          real-time communication on targets which support debugger 
+          real-time communication on targets which support debugger
           memory accesses while the CPU is running.
 Revision: $Rev: 5626 $
 ----------------------------------------------------------------------
@@ -159,8 +159,8 @@ unsigned     SEGGER_RTT_WriteNoLock             (unsigned BufferIndex, const voi
 unsigned     SEGGER_RTT_WriteSkipNoLock         (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
 unsigned     SEGGER_RTT_WriteString             (unsigned BufferIndex, const char* s);
 void         SEGGER_RTT_WriteWithOverwriteNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
-void         SEGGER_RTT_ESP32_FlushNoLock       (unsigned long min_sz, unsigned long tmo);
-void         SEGGER_RTT_ESP32_Flush             (unsigned long min_sz, unsigned long tmo);
+void         SEGGER_RTT_ESP_FlushNoLock       (unsigned long min_sz, unsigned long tmo);
+void         SEGGER_RTT_ESP_Flush             (unsigned long min_sz, unsigned long tmo);
 //
 // Function macro for performance optimization
 //

components/app_trace/sys_view/SEGGER/SEGGER_SYSVIEW.c

@@ -69,7 +69,7 @@ Additional information:
 
     Packets with IDs 24..31 are standard packets with extendible
     structure and contain a length field.
-    <ID><Lenght><Data><TimeStampDelta>
+    <ID><Length><Data><TimeStampDelta>
 
     Packets with IDs >= 32 always contain a length field.
     <ID><Length><Data><TimeStampDelta>
@@ -402,7 +402,7 @@ static U8 *_EncodeStr(U8 *pPayload, const char *pText, unsigned int Limit) {
   // Write Len
   //
   if (Len < 255)  {
-    *pPayload++ = Len; 
+    *pPayload++ = Len;
   } else {
     *pPayload++ = 255;
     *pPayload++ = (Len & 255);
@@ -556,7 +556,7 @@ static int _TrySendOverflowPacket(void) {
 *       _SendSyncInfo()
 *
 *  Function description
-*    Send SystemView sync packet and system information in 
+*    Send SystemView sync packet and system information in
 *    post mortem mode.
 *
 *  Additional information
@@ -792,7 +792,7 @@ static void _VPrintHost(const char* s, U32 Options, va_list* pParamList) {
   U32 aParas[SEGGER_SYSVIEW_MAX_ARGUMENTS];
   U32 NumArguments;
   const char* p;
-  
+
   p = s;
   NumArguments = 0;
   while (*p) {

components/app_trace/sys_view/SEGGER/SEGGER_SYSVIEW_ConfDefaults.h

@@ -118,7 +118,7 @@ extern "C" {
 #endif
 
 // Lowest Id reported by the Application.
-#ifndef   SEGGER_SYSVIEW_ID_BASE 
+#ifndef   SEGGER_SYSVIEW_ID_BASE
   #define SEGGER_SYSVIEW_ID_BASE            0
 #endif
 

components/app_trace/sys_view/Sample/Config/SEGGER_SYSVIEW_Config_FreeRTOS.c

@@ -61,26 +61,20 @@ File    : SEGGER_SYSVIEW_Config_FreeRTOS.c
 Purpose : Sample setup configuration of SystemView with FreeRTOS.
 Revision: $Rev: 3734 $
 */
+#include "sdkconfig.h"
 #include "freertos/FreeRTOS.h"
 #include "SEGGER_SYSVIEW.h"
-#if CONFIG_IDF_TARGET_ESP32
-#include "esp32/rom/ets_sys.h"
-#include "esp32/clk.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/rom/ets_sys.h"
-#include "esp32s2beta/clk.h"
-#endif
 #include "esp_app_trace.h"
 #include "esp_app_trace_util.h"
 #include "esp_intr_alloc.h"
 #include "soc/soc.h"
 #include "soc/interrupts.h"
 #if CONFIG_IDF_TARGET_ESP32
-#include "esp32/rom/ets_sys.h"
 #include "esp32/clk.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/rom/ets_sys.h"
-#include "esp32s2beta/clk.h"
+#elif CONFIG_IDF_TARGET_ESP32S2
+#include "esp32s2/clk.h"
+#elif CONFIG_IDF_TARGET_ESP32C3
+#include "esp32c3/clk.h"
 #endif
 
 
@@ -97,11 +91,17 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
 
 // The target device name
 #define SYSVIEW_DEVICE_NAME     CONFIG_IDF_TARGET
+// The target core name
+#if CONFIG_IDF_TARGET_ARCH_XTENSA
+#define SYSVIEW_CORE_NAME       "xtensa"
+#elif CONFIG_IDF_TARGET_ARCH_RISCV
+#define SYSVIEW_CORE_NAME       "riscv"
+#endif
 
 // Determine which timer to use as timestamp source
-#if CONFIG_SYSVIEW_TS_SOURCE_CCOUNT
+#if CONFIG_APPTRACE_SV_TS_SOURCE_CCOUNT
 #define TS_USE_CCOUNT 1
-#elif CONFIG_SYSVIEW_TS_SOURCE_ESP_TIMER
+#elif CONFIG_APPTRACE_SV_TS_SOURCE_ESP_TIMER
 #define TS_USE_ESP_TIMER 1
 #else
 #define TS_USE_TIMERGROUP 1
@@ -117,13 +117,13 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
 #define SYSVIEW_TIMESTAMP_FREQ  (esp_clk_apb_freq() / SYSVIEW_TIMER_DIV)
 
 // Timer ID and group ID
-#if defined(CONFIG_SYSVIEW_TS_SOURCE_TIMER_00) || defined(CONFIG_SYSVIEW_TS_SOURCE_TIMER_01)
+#if defined(CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_00) || defined(CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_10)
 #define TS_TIMER_ID 0
 #else
 #define TS_TIMER_ID 1
 #endif // TIMER_00 || TIMER_01
 
-#if defined(CONFIG_SYSVIEW_TS_SOURCE_TIMER_00) || defined(CONFIG_SYSVIEW_TS_SOURCE_TIMER_10)
+#if defined(CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_00) || defined(CONFIG_APPTRACE_SV_TS_SOURCE_TIMER_01)
 #define TS_TIMER_GROUP 0
 #else
 #define TS_TIMER_GROUP 1
@@ -140,7 +140,7 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
 // CCOUNT is incremented at CPU frequency
 #if CONFIG_IDF_TARGET_ESP32
 #define SYSVIEW_TIMESTAMP_FREQ  (CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ * 1000000)
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
+#elif CONFIG_IDF_TARGET_ESP32S2
 #define SYSVIEW_TIMESTAMP_FREQ  (CONFIG_ESP32S2_DEFAULT_CPU_FREQ_MHZ * 1000000)
 #endif
 #endif // TS_USE_CCOUNT
@@ -151,6 +151,7 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
 // The lowest RAM address used for IDs (pointers)
 #define SYSVIEW_RAM_BASE        (SOC_DROM_LOW)
 
+#ifdef CONFIG_FREERTOS_TICK_SUPPORT_CORETIMER
 #if CONFIG_FREERTOS_CORETIMER_0
     #define SYSTICK_INTR_ID (ETS_INTERNAL_TIMER0_INTR_SOURCE+ETS_INTERNAL_INTR_SOURCE_OFF)
 #endif
@@ -158,6 +159,10 @@ extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
     #define SYSTICK_INTR_ID (ETS_INTERNAL_TIMER1_INTR_SOURCE+ETS_INTERNAL_INTR_SOURCE_OFF)
 #endif
 
+#elif CONFIG_FREERTOS_SYSTICK_USES_SYSTIMER
+    #define SYSTICK_INTR_ID (ETS_SYSTIMER_TARGET0_EDGE_INTR_SOURCE)
+#endif // CONFIG_FREERTOS_TICK_SUPPORT_CORETIMER
+
 // SystemView is single core specific: it implies that SEGGER_SYSVIEW_LOCK()
 // disables IRQs (disables rescheduling globally). So we can not use finite timeouts for locks and return error
 // in case of expiration, because error will not be handled and SEGGER's code will go further implying that
@@ -175,11 +180,13 @@ static esp_apptrace_lock_t s_sys_view_lock = {.mux = portMUX_INITIALIZER_UNLOCKE
 */
 static void _cbSendSystemDesc(void) {
     char irq_str[32];
-    SEGGER_SYSVIEW_SendSysDesc("N="SYSVIEW_APP_NAME",D="SYSVIEW_DEVICE_NAME",C=Xtensa,O=FreeRTOS");
+    SEGGER_SYSVIEW_SendSysDesc("N="SYSVIEW_APP_NAME",D="SYSVIEW_DEVICE_NAME",C="SYSVIEW_CORE_NAME",O=FreeRTOS");
     snprintf(irq_str, sizeof(irq_str), "I#%d=SysTick", SYSTICK_INTR_ID);
     SEGGER_SYSVIEW_SendSysDesc(irq_str);
     size_t isr_count = sizeof(esp_isr_names)/sizeof(esp_isr_names[0]);
     for (size_t i = 0; i < isr_count; ++i) {
+        if (esp_isr_names[i] == NULL || (ETS_INTERNAL_INTR_SOURCE_OFF + i) == SYSTICK_INTR_ID)
+            continue;
         snprintf(irq_str, sizeof(irq_str), "I#%d=%s", ETS_INTERNAL_INTR_SOURCE_OFF + i, esp_isr_names[i]);
         SEGGER_SYSVIEW_SendSysDesc(irq_str);
     }
@@ -221,43 +228,43 @@ void SEGGER_SYSVIEW_Conf(void) {
                         &SYSVIEW_X_OS_TraceAPI, _cbSendSystemDesc);
     SEGGER_SYSVIEW_SetRAMBase(SYSVIEW_RAM_BASE);
 
-#if !CONFIG_SYSVIEW_EVT_OVERFLOW_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_OVERFLOW_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_OVERFLOW;
 #endif
-#if !CONFIG_SYSVIEW_EVT_ISR_ENTER_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_ISR_ENTER_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_ISR_ENTER;
 #endif
-#if !CONFIG_SYSVIEW_EVT_ISR_EXIT_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_ISR_EXIT_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_ISR_EXIT;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_START_EXEC_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_START_EXEC_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_START_EXEC;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_STOP_EXEC_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_STOP_EXEC_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_STOP_EXEC;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_START_READY_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_START_READY_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_START_READY;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_STOP_READY_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_STOP_READY_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_STOP_READY;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_CREATE_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_CREATE_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_CREATE;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TASK_TERMINATE_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TASK_TERMINATE_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TASK_TERMINATE;
 #endif
-#if !CONFIG_SYSVIEW_EVT_IDLE_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_IDLE_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_IDLE;
 #endif
-#if !CONFIG_SYSVIEW_EVT_ISR_TO_SCHEDULER_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_ISR_TO_SCHED_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_ISR_TO_SCHEDULER;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TIMER_ENTER_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TIMER_ENTER_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TIMER_ENTER;
 #endif
-#if !CONFIG_SYSVIEW_EVT_TIMER_EXIT_ENABLE
+#if !CONFIG_APPTRACE_SV_EVT_TIMER_EXIT_ENABLE
     disable_evts |= SYSVIEW_EVTMASK_TIMER_EXIT;
 #endif
   SEGGER_SYSVIEW_DisableEvents(disable_evts);

components/app_trace/sys_view/Sample/OS/SEGGER_SYSVIEW_FreeRTOS.c

@@ -136,11 +136,11 @@ static U64 _cbGetTime(void) {
 */
 void SYSVIEW_AddTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32  pxStack, unsigned uStackHighWaterMark) {
   unsigned n;
-  
+
   if (memcmp(pcTaskName, "IDLE", 5) == 0) {
     return;
   }
-  
+
   for (n = 0; n < SYSVIEW_FREERTOS_MAX_NOF_TASKS; n++) {
     if (_aTasks[n].xHandle == 0) {
       break;
@@ -170,7 +170,7 @@ void SYSVIEW_AddTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPrio
 */
 void SYSVIEW_UpdateTask(U32 xHandle, const char* pcTaskName, unsigned uxCurrentPriority, U32 pxStack, unsigned uStackHighWaterMark) {
   unsigned n;
-  
+
   if (memcmp(pcTaskName, "IDLE", 5) == 0) {
     return;
   }

components/app_trace/sys_view/Sample/OS/SEGGER_SYSVIEW_FreeRTOS.h

@@ -80,7 +80,7 @@ Notes:
   #define portSTACK_GROWTH              ( -1 )
 #endif
 
-#define SYSVIEW_FREERTOS_MAX_NOF_TASKS  CONFIG_SYSVIEW_MAX_TASKS
+#define SYSVIEW_FREERTOS_MAX_NOF_TASKS  CONFIG_APPTRACE_SV_MAX_TASKS
 
 /*********************************************************************
 *
@@ -209,7 +209,7 @@ Notes:
 #define apiID_VEVENTGROUPDELETE                   (72u)
 #define apiID_UXEVENTGROUPGETNUMBER               (73u)
 
-#define traceTASK_NOTIFY_TAKE()                                       SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_ULTASKNOTIFYTAKE, xClearCountOnExit, xTicksToWait)
+#define traceTASK_NOTIFY_TAKE( uxIndexToWait )                        SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_ULTASKNOTIFYTAKE, xClearCountOnExit, xTicksToWait)
 #define traceTASK_DELAY()                                             SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VTASKDELAY, xTicksToDelay)
 #define traceTASK_DELAY_UNTIL()                                       SEGGER_SYSVIEW_RecordVoid(apiFastID_OFFSET + apiID_VTASKDELAYUNTIL)
 #define traceTASK_DELETE( pxTCB )                                     if (pxTCB != NULL) {                                              \
@@ -217,24 +217,25 @@ Notes:
 						                                                                      SEGGER_SYSVIEW_ShrinkId((U32)pxTCB)); 	\
 					                                                    SYSVIEW_DeleteTask((U32)pxTCB);                                 \
 					                                                  }
-#define traceTASK_NOTIFY_GIVE_FROM_ISR()                              SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_VTASKNOTIFYGIVEFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), (U32)pxHigherPriorityTaskWoken)
+#define traceTASK_NOTIFY_GIVE_FROM_ISR( uxIndexToNotify )             SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_VTASKNOTIFYGIVEFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), (U32)pxHigherPriorityTaskWoken)
 #define traceTASK_PRIORITY_INHERIT( pxTCB, uxPriority )               SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VTASKPRIORITYINHERIT, (U32)pxMutexHolder)
 #define traceTASK_RESUME( pxTCB )                                     SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VTASKRESUME, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB))
 #define traceINCREASE_TICK_COUNT( xTicksToJump )                      SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VTASKSTEPTICK, xTicksToJump)
 #define traceTASK_SUSPEND( pxTCB )                                    SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VTASKSUSPEND, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB))
 #define traceTASK_PRIORITY_DISINHERIT( pxTCB, uxBasePriority )        SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_XTASKPRIORITYDISINHERIT, (U32)pxMutexHolder)
 #define traceTASK_RESUME_FROM_ISR( pxTCB )                            SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_XTASKRESUMEFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB))
-#define traceTASK_NOTIFY()                                            SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XTASKGENERICNOTIFY, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), ulValue, eAction, (U32)pulPreviousNotificationValue)
-#define traceTASK_NOTIFY_FROM_ISR()                                   SYSVIEW_RecordU32x5(apiFastID_OFFSET + apiID_XTASKGENERICNOTIFYFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), ulValue, eAction, (U32)pulPreviousNotificationValue, (U32)pxHigherPriorityTaskWoken)
-#define traceTASK_NOTIFY_WAIT()                                       SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XTASKNOTIFYWAIT, ulBitsToClearOnEntry, ulBitsToClearOnExit, (U32)pulNotificationValue, xTicksToWait)
+#define traceTASK_NOTIFY( uxIndexToNotify )                           SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XTASKGENERICNOTIFY, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), ulValue, eAction, (U32)pulPreviousNotificationValue)
+#define traceTASK_NOTIFY_FROM_ISR( uxIndexToNotify )                  SYSVIEW_RecordU32x5(apiFastID_OFFSET + apiID_XTASKGENERICNOTIFYFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxTCB), ulValue, eAction, (U32)pulPreviousNotificationValue, (U32)pxHigherPriorityTaskWoken)
+#define traceTASK_NOTIFY_WAIT( uxIndexToWait )                        SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XTASKNOTIFYWAIT, ulBitsToClearOnEntry, ulBitsToClearOnExit, (U32)pulNotificationValue, xTicksToWait)
 
 #define traceQUEUE_CREATE( pxNewQueue )                               SEGGER_SYSVIEW_RecordU32x3(apiFastID_OFFSET + apiID_XQUEUEGENERICCREATE, uxQueueLength, uxItemSize, ucQueueType)
 #define traceQUEUE_DELETE( pxQueue )                                  SEGGER_SYSVIEW_RecordU32(apiFastID_OFFSET + apiID_VQUEUEDELETE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue))
-#define traceQUEUE_PEEK( pxQueue )                                    SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), xTicksToWait, xJustPeeking)
+#define traceQUEUE_PEEK( pxQueue )                                    SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), xTicksToWait, 0)
 #define traceQUEUE_PEEK_FROM_ISR( pxQueue )                           SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_XQUEUEPEEKFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer))
 #define traceQUEUE_PEEK_FROM_ISR_FAILED( pxQueue )                    SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_XQUEUEPEEKFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer))
-#define traceQUEUE_RECEIVE( pxQueue )                                 SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), xTicksToWait, xJustPeeking)
-#define traceQUEUE_RECEIVE_FAILED( pxQueue )                          SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), xTicksToWait, xJustPeeking)
+#define traceQUEUE_RECEIVE( pxQueue )                                 SEGGER_SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)0), xTicksToWait, 1)
+#define traceQUEUE_RECEIVE_FAILED( pxQueue )                          SEGGER_SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)0), xTicksToWait, 1)
+#define traceQUEUE_SEMAPHORE_RECEIVE( pxQueue )                       SEGGER_SYSVIEW_RecordU32x4(apiFastID_OFFSET + apiID_XQUEUEGENERICRECEIVE, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)0), xTicksToWait, 0)
 #define traceQUEUE_RECEIVE_FROM_ISR( pxQueue )                        SEGGER_SYSVIEW_RecordU32x3(apiFastID_OFFSET + apiID_XQUEUERECEIVEFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), (U32)pxHigherPriorityTaskWoken)
 #define traceQUEUE_RECEIVE_FROM_ISR_FAILED( pxQueue )                 SEGGER_SYSVIEW_RecordU32x3(apiFastID_OFFSET + apiID_XQUEUERECEIVEFROMISR, SEGGER_SYSVIEW_ShrinkId((U32)pxQueue), SEGGER_SYSVIEW_ShrinkId((U32)pvBuffer), (U32)pxHigherPriorityTaskWoken)
 #define traceQUEUE_REGISTRY_ADD( xQueue, pcQueueName )                SEGGER_SYSVIEW_RecordU32x2(apiFastID_OFFSET + apiID_VQUEUEADDTOREGISTRY, SEGGER_SYSVIEW_ShrinkId((U32)xQueue), (U32)pcQueueName)
@@ -289,12 +290,12 @@ Notes:
   #define traceTASK_SWITCHED_IN()                   if(prvGetTCBFromHandle(NULL) == xTaskGetIdleTaskHandle()) {           \
                                                       SEGGER_SYSVIEW_OnIdle();                                          \
                                                     } else {                                                            \
-                                                      SEGGER_SYSVIEW_OnTaskStartExec((U32)pxCurrentTCB[xPortGetCoreID()]); \
+                                                      SEGGER_SYSVIEW_OnTaskStartExec((U32)pxCurrentTCB[cpu_hal_get_core_id()]); \
                                                     }
 #else
   #define traceTASK_SWITCHED_IN()                   {                                                                   \
-                                                      if (memcmp(pxCurrentTCB[xPortGetCoreID()]->pcTaskName, "IDLE", 5) != 0) { \
-                                                        SEGGER_SYSVIEW_OnTaskStartExec((U32)pxCurrentTCB[xPortGetCoreID()]);    \
+                                                      if (memcmp(pxCurrentTCB[cpu_hal_get_core_id()]->pcTaskName, "IDLE", 5) != 0) { \
+                                                        SEGGER_SYSVIEW_OnTaskStartExec((U32)pxCurrentTCB[cpu_hal_get_core_id()]);    \
                                                       } else {                                                          \
                                                         SEGGER_SYSVIEW_OnIdle();                                        \
                                                       }                                                                 \
@@ -304,14 +305,15 @@ Notes:
 #define traceMOVED_TASK_TO_READY_STATE(pxTCB)       SEGGER_SYSVIEW_OnTaskStartReady((U32)pxTCB)
 #define traceREADDED_TASK_TO_READY_STATE(pxTCB)
 
-#define traceMOVED_TASK_TO_DELAYED_LIST()           SEGGER_SYSVIEW_OnTaskStopReady((U32)pxCurrentTCB[xPortGetCoreID()],  (1u << 2))
-#define traceMOVED_TASK_TO_OVERFLOW_DELAYED_LIST()  SEGGER_SYSVIEW_OnTaskStopReady((U32)pxCurrentTCB[xPortGetCoreID()],  (1u << 2))
+#define traceMOVED_TASK_TO_DELAYED_LIST()           SEGGER_SYSVIEW_OnTaskStopReady((U32)pxCurrentTCB[cpu_hal_get_core_id()],  (1u << 2))
+#define traceMOVED_TASK_TO_OVERFLOW_DELAYED_LIST()  SEGGER_SYSVIEW_OnTaskStopReady((U32)pxCurrentTCB[cpu_hal_get_core_id()],  (1u << 2))
 #define traceMOVED_TASK_TO_SUSPENDED_LIST(pxTCB)    SEGGER_SYSVIEW_OnTaskStopReady((U32)pxTCB,         ((3u << 3) | 3))
 
 #define traceISR_EXIT_TO_SCHEDULER()                SEGGER_SYSVIEW_RecordExitISRToScheduler()
 #define traceISR_EXIT()                             SEGGER_SYSVIEW_RecordExitISR()
 #define traceISR_ENTER(_n_)                         SEGGER_SYSVIEW_RecordEnterISR(_n_)
 
+
 /*********************************************************************
 *
 *       API functions

components/app_trace/sys_view/esp/SEGGER_RTT_esp.c

@@ -0,0 +1,235 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "string.h"
+#include "freertos/FreeRTOS.h"
+#include "SEGGER_RTT.h"
+#include "SEGGER_SYSVIEW.h"
+#include "SEGGER_SYSVIEW_Conf.h"
+
+#include "esp_app_trace.h"
+#include "esp_log.h"
+
+const static char *TAG = "segger_rtt";
+
+#define SYSVIEW_EVENTS_BUF_SZ         255U
+
+// size of down channel data buf
+#define SYSVIEW_DOWN_BUF_SIZE   32
+#define SEGGER_STOP_WAIT_TMO    1000000 //us
+#if CONFIG_APPTRACE_SV_BUF_WAIT_TMO == -1
+#define SEGGER_HOST_WAIT_TMO    ESP_APPTRACE_TMO_INFINITE
+#else
+#define SEGGER_HOST_WAIT_TMO    CONFIG_APPTRACE_SV_BUF_WAIT_TMO
+#endif
+
+static uint8_t s_events_buf[SYSVIEW_EVENTS_BUF_SZ];
+static uint16_t s_events_buf_filled;
+static uint8_t s_down_buf[SYSVIEW_DOWN_BUF_SIZE];
+
+/*********************************************************************
+*
+*       Public code
+*
+**********************************************************************
+*/
+
+/*********************************************************************
+*
+*       SEGGER_RTT_ESP_FlushNoLock()
+*
+*  Function description
+*    Flushes buffered events.
+*
+*  Parameters
+*    min_sz  Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
+*    tmo     Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
+*
+*  Return value
+*    None.
+*/
+void SEGGER_RTT_ESP_FlushNoLock(unsigned long min_sz, unsigned long tmo)
+{
+    esp_err_t res;
+    if (s_events_buf_filled > 0) {
+      res = esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, s_events_buf, s_events_buf_filled, tmo);
+      if (res != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to flush buffered events (%d)!\n", res);
+      }
+    }
+    // flush even if we failed to write buffered events, because no new events will be sent after STOP
+    res = esp_apptrace_flush_nolock(ESP_APPTRACE_DEST_TRAX, min_sz, tmo);
+    if (res != ESP_OK) {
+      ESP_LOGE(TAG, "Failed to flush apptrace data (%d)!\n", res);
+    }
+    s_events_buf_filled = 0;
+}
+
+/*********************************************************************
+*
+*       SEGGER_RTT_ESP_Flush()
+*
+*  Function description
+*    Flushes buffered events.
+*
+*  Parameters
+*    min_sz  Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
+*    tmo     Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
+*
+*  Return value
+*    None.
+*/
+void SEGGER_RTT_ESP_Flush(unsigned long min_sz, unsigned long tmo)
+{
+    SEGGER_SYSVIEW_LOCK();
+    SEGGER_RTT_ESP_FlushNoLock(min_sz, tmo);
+    SEGGER_SYSVIEW_UNLOCK();
+}
+
+/*********************************************************************
+*
+*       SEGGER_RTT_ReadNoLock()
+*
+*  Function description
+*    Reads characters from SEGGER real-time-terminal control block
+*    which have been previously stored by the host.
+*    Do not lock against interrupts and multiple access.
+*
+*  Parameters
+*    BufferIndex  Index of Down-buffer to be used (e.g. 0 for "Terminal").
+*    pBuffer      Pointer to buffer provided by target application, to copy characters from RTT-down-buffer to.
+*    BufferSize   Size of the target application buffer.
+*
+*  Return value
+*    Number of bytes that have been read.
+*/
+unsigned SEGGER_RTT_ReadNoLock(unsigned BufferIndex, void* pData, unsigned BufferSize) {
+  uint32_t size = BufferSize;
+  esp_err_t res = esp_apptrace_read(ESP_APPTRACE_DEST_TRAX, pData, &size, 0);
+  if (res != ESP_OK) {
+    return 0;
+  }
+  return size;
+}
+
+/*********************************************************************
+*
+*       SEGGER_RTT_WriteSkipNoLock
+*
+*  Function description
+*    Stores a specified number of characters in SEGGER RTT
+*    control block which is then read by the host.
+*    SEGGER_RTT_WriteSkipNoLock does not lock the application and
+*    skips all data, if the data does not fit into the buffer.
+*
+*  Parameters
+*    BufferIndex  Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+*    pBuffer      Pointer to character array. Does not need to point to a \0 terminated string.
+*    NumBytes     Number of bytes to be stored in the SEGGER RTT control block.
+*
+*  Return value
+*    Number of bytes which have been stored in the "Up"-buffer.
+*
+*  Notes
+*    (1) If there is not enough space in the "Up"-buffer, all data is dropped.
+*    (2) For performance reasons this function does not call Init()
+*        and may only be called after RTT has been initialized.
+*        Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+*/
+unsigned SEGGER_RTT_WriteSkipNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+  uint8_t *pbuf = (uint8_t *)pBuffer;
+  uint8_t event_id = *pbuf;
+
+  if (NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
+      ESP_LOGE(TAG, "Too large event %u bytes!", NumBytes);
+      return 0;
+  }
+  if (cpu_hal_get_core_id()) { // dual core specific code
+    // use the highest - 1 bit of event ID to indicate core ID
+    // the highest bit can not be used due to event ID encoding method
+    // this reduces supported ID range to [0..63] (for 1 byte IDs) plus [128..16383] (for 2 bytes IDs)
+    if (*pbuf & 0x80) { // 2 bytes ID
+      *(pbuf + 1) |= (1 << 6);
+    } else if (NumBytes != 10 || *pbuf != 0) { // ignore sync sequence
+      *pbuf |= (1 << 6);
+    }
+  }
+  if (s_events_buf_filled + NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
+    esp_err_t res = esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, s_events_buf, s_events_buf_filled, SEGGER_HOST_WAIT_TMO);
+    if (res != ESP_OK) {
+      return 0; // skip current data buffer only, accumulated events are kept
+    }
+    s_events_buf_filled = 0;
+  }
+  memcpy(&s_events_buf[s_events_buf_filled], pBuffer, NumBytes);
+  s_events_buf_filled += NumBytes;
+  if (event_id == SYSVIEW_EVTID_TRACE_STOP) {
+    SEGGER_RTT_ESP_FlushNoLock(0, SEGGER_STOP_WAIT_TMO);
+  }
+  return NumBytes;
+}
+
+/*********************************************************************
+*
+*       SEGGER_RTT_ConfigUpBuffer
+*
+*  Function description
+*    Run-time configuration of a specific up-buffer (T->H).
+*    Buffer to be configured is specified by index.
+*    This includes: Buffer address, size, name, flags, ...
+*
+*  Parameters
+*    BufferIndex  Index of the buffer to configure.
+*    sName        Pointer to a constant name string.
+*    pBuffer      Pointer to a buffer to be used.
+*    BufferSize   Size of the buffer.
+*    Flags        Operating modes. Define behavior if buffer is full (not enough space for entire message).
+*
+*  Return value
+*    >= 0 - O.K.
+*     < 0 - Error
+*
+*  Additional information
+*    Buffer 0 is configured on compile-time.
+*    May only be called once per buffer.
+*    Buffer name and flags can be reconfigured using the appropriate functions.
+*/
+int SEGGER_RTT_ConfigUpBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+  s_events_buf_filled = 0;
+  return 0;
+}
+
+/*********************************************************************
+*
+*       SEGGER_RTT_ConfigDownBuffer
+*
+*  Function description
+*    Run-time configuration of a specific down-buffer (H->T).
+*    Buffer to be configured is specified by index.
+*    This includes: Buffer address, size, name, flags, ...
+*
+*  Parameters
+*    BufferIndex  Index of the buffer to configure.
+*    sName        Pointer to a constant name string.
+*    pBuffer      Pointer to a buffer to be used.
+*    BufferSize   Size of the buffer.
+*    Flags        Operating modes. Define behavior if buffer is full (not enough space for entire message).
+*
+*  Return value
+*    >= 0  O.K.
+*     < 0  Error
+*
+*  Additional information
+*    Buffer 0 is configured on compile-time.
+*    May only be called once per buffer.
+*    Buffer name and flags can be reconfigured using the appropriate functions.
+*/
+int SEGGER_RTT_ConfigDownBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+  esp_apptrace_down_buffer_config(s_down_buf, sizeof(s_down_buf));
+  return 0;
+}
+
+/*************************** End of file ****************************/

components/app_trace/sys_view/esp32/SEGGER_RTT_esp32.c

@@ -1,248 +0,0 @@
-// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "string.h"
-#include "freertos/FreeRTOS.h"
-#include "SEGGER_RTT.h"
-#include "SEGGER_SYSVIEW.h"
-#include "SEGGER_SYSVIEW_Conf.h"
-
-#if CONFIG_IDF_TARGET_ESP32
-#include "esp32/rom/ets_sys.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/rom/ets_sys.h"
-#endif
-#include "esp_app_trace.h"
-
-#include "esp_log.h"
-const static char *TAG = "segger_rtt";
-
-#define SYSVIEW_EVENTS_BUF_SZ         255U
-
-// size of down channel data buf
-#define SYSVIEW_DOWN_BUF_SIZE   32
-#define SEGGER_STOP_WAIT_TMO    1000000 //us
-#if CONFIG_SYSVIEW_BUF_WAIT_TMO == -1
-#define SEGGER_HOST_WAIT_TMO    ESP_APPTRACE_TMO_INFINITE
-#else
-#define SEGGER_HOST_WAIT_TMO    CONFIG_SYSVIEW_BUF_WAIT_TMO
-#endif
-
-static uint8_t s_events_buf[SYSVIEW_EVENTS_BUF_SZ];
-static uint16_t s_events_buf_filled;
-static uint8_t s_down_buf[SYSVIEW_DOWN_BUF_SIZE];
-
-/*********************************************************************
-*
-*       Public code
-*
-**********************************************************************
-*/
-
-/*********************************************************************
-*
-*       SEGGER_RTT_ESP32_FlushNoLock()
-*
-*  Function description
-*    Flushes buffered events.
-*
-*  Parameters
-*    min_sz  Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
-*    tmo     Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
-*
-*  Return value
-*    None.
-*/
-void SEGGER_RTT_ESP32_FlushNoLock(unsigned long min_sz, unsigned long tmo)
-{
-    esp_err_t res;
-    if (s_events_buf_filled > 0) {
-      res = esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, s_events_buf, s_events_buf_filled, tmo);
-      if (res != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to flush buffered events (%d)!\n", res);
-      }
-    }
-    // flush even if we failed to write buffered events, because no new events will be sent after STOP
-    res = esp_apptrace_flush_nolock(ESP_APPTRACE_DEST_TRAX, min_sz, tmo);
-    if (res != ESP_OK) {
-      ESP_LOGE(TAG, "Failed to flush apptrace data (%d)!\n", res);
-    }
-    s_events_buf_filled = 0;
-}
-
-/*********************************************************************
-*
-*       SEGGER_RTT_ESP32_Flush()
-*
-*  Function description
-*    Flushes buffered events.
-*
-*  Parameters
-*    min_sz  Threshold for flushing data. If current filling level is above this value, data will be flushed. TRAX destinations only.
-*    tmo     Timeout for operation (in us). Use ESP_APPTRACE_TMO_INFINITE to wait indefinetly.
-*
-*  Return value
-*    None.
-*/
-void SEGGER_RTT_ESP32_Flush(unsigned long min_sz, unsigned long tmo)
-{
-    SEGGER_SYSVIEW_LOCK();
-    SEGGER_RTT_ESP32_FlushNoLock(min_sz, tmo);
-    SEGGER_SYSVIEW_UNLOCK();
-}
-
-/*********************************************************************
-*
-*       SEGGER_RTT_ReadNoLock()
-*
-*  Function description
-*    Reads characters from SEGGER real-time-terminal control block
-*    which have been previously stored by the host.
-*    Do not lock against interrupts and multiple access.
-*
-*  Parameters
-*    BufferIndex  Index of Down-buffer to be used (e.g. 0 for "Terminal").
-*    pBuffer      Pointer to buffer provided by target application, to copy characters from RTT-down-buffer to.
-*    BufferSize   Size of the target application buffer.
-*
-*  Return value
-*    Number of bytes that have been read.
-*/
-unsigned SEGGER_RTT_ReadNoLock(unsigned BufferIndex, void* pData, unsigned BufferSize) {
-  uint32_t size = BufferSize;
-  esp_err_t res = esp_apptrace_read(ESP_APPTRACE_DEST_TRAX, pData, &size, 0);
-  if (res != ESP_OK) {
-    return 0;
-  }
-  return size;
-}
-
-/*********************************************************************
-*
-*       SEGGER_RTT_WriteSkipNoLock
-*
-*  Function description
-*    Stores a specified number of characters in SEGGER RTT
-*    control block which is then read by the host.
-*    SEGGER_RTT_WriteSkipNoLock does not lock the application and
-*    skips all data, if the data does not fit into the buffer.
-*
-*  Parameters
-*    BufferIndex  Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
-*    pBuffer      Pointer to character array. Does not need to point to a \0 terminated string.
-*    NumBytes     Number of bytes to be stored in the SEGGER RTT control block.
-*
-*  Return value
-*    Number of bytes which have been stored in the "Up"-buffer.
-*
-*  Notes
-*    (1) If there is not enough space in the "Up"-buffer, all data is dropped.
-*    (2) For performance reasons this function does not call Init()
-*        and may only be called after RTT has been initialized.
-*        Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
-*/
-unsigned SEGGER_RTT_WriteSkipNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
-  uint8_t *pbuf = (uint8_t *)pBuffer;
-  uint8_t event_id = *pbuf;
-
-  if (NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
-      ESP_LOGE(TAG, "Too large event %u bytes!", NumBytes);
-      return 0;
-  }
-  if (xPortGetCoreID()) { // dual core specific code
-    // use the highest - 1 bit of event ID to indicate core ID
-    // the highest bit can not be used due to event ID encoding method
-    // this reduces supported ID range to [0..63] (for 1 byte IDs) plus [128..16383] (for 2 bytes IDs)
-    if (*pbuf & 0x80) { // 2 bytes ID
-      *(pbuf + 1) |= (1 << 6);
-    } else if (NumBytes != 10 || *pbuf != 0) { // ignore sync sequence
-      *pbuf |= (1 << 6);
-    }
-  }
-  if (s_events_buf_filled + NumBytes > SYSVIEW_EVENTS_BUF_SZ) {
-    esp_err_t res = esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, s_events_buf, s_events_buf_filled, SEGGER_HOST_WAIT_TMO);
-    if (res != ESP_OK) {
-      return 0; // skip current data buffer only, accumulated events are kept
-    }
-    s_events_buf_filled = 0;
-  }
-  memcpy(&s_events_buf[s_events_buf_filled], pBuffer, NumBytes);
-  s_events_buf_filled += NumBytes;
-  if (event_id == SYSVIEW_EVTID_TRACE_STOP) {
-    SEGGER_RTT_ESP32_FlushNoLock(0, SEGGER_STOP_WAIT_TMO);
-  }
-  return NumBytes;
-}
-
-/*********************************************************************
-*
-*       SEGGER_RTT_ConfigUpBuffer
-*
-*  Function description
-*    Run-time configuration of a specific up-buffer (T->H).
-*    Buffer to be configured is specified by index.
-*    This includes: Buffer address, size, name, flags, ...
-*
-*  Parameters
-*    BufferIndex  Index of the buffer to configure.
-*    sName        Pointer to a constant name string.
-*    pBuffer      Pointer to a buffer to be used.
-*    BufferSize   Size of the buffer.
-*    Flags        Operating modes. Define behavior if buffer is full (not enough space for entire message).
-*
-*  Return value
-*    >= 0 - O.K.
-*     < 0 - Error
-*
-*  Additional information
-*    Buffer 0 is configured on compile-time.
-*    May only be called once per buffer.
-*    Buffer name and flags can be reconfigured using the appropriate functions.
-*/
-int SEGGER_RTT_ConfigUpBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
-  s_events_buf_filled = 0;
-  return 0;
-}
-
-/*********************************************************************
-*
-*       SEGGER_RTT_ConfigDownBuffer
-*
-*  Function description
-*    Run-time configuration of a specific down-buffer (H->T).
-*    Buffer to be configured is specified by index.
-*    This includes: Buffer address, size, name, flags, ...
-*
-*  Parameters
-*    BufferIndex  Index of the buffer to configure.
-*    sName        Pointer to a constant name string.
-*    pBuffer      Pointer to a buffer to be used.
-*    BufferSize   Size of the buffer.
-*    Flags        Operating modes. Define behavior if buffer is full (not enough space for entire message).
-*
-*  Return value
-*    >= 0  O.K.
-*     < 0  Error
-*
-*  Additional information
-*    Buffer 0 is configured on compile-time.
-*    May only be called once per buffer.
-*    Buffer name and flags can be reconfigured using the appropriate functions.
-*/
-int SEGGER_RTT_ConfigDownBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
-  esp_apptrace_down_buffer_config(s_down_buf, sizeof(s_down_buf));
-  return 0;
-}
-
-/*************************** End of file ****************************/

components/app_trace/sys_view/ext/heap_trace_module.c

@@ -1,16 +1,8 @@
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stdint.h>
 #include <sdkconfig.h>
 #include "SEGGER_SYSVIEW.h"
@@ -60,7 +52,7 @@ esp_err_t esp_sysview_heap_trace_start(uint32_t tmo)
 esp_err_t esp_sysview_heap_trace_stop(void)
 {
     ESP_EARLY_LOGV(TAG, "%s", __func__);
-    SEGGER_RTT_ESP32_Flush(0, ESP_APPTRACE_TMO_INFINITE);
+    SEGGER_RTT_ESP_Flush(0, ESP_APPTRACE_TMO_INFINITE);
     return ESP_OK;
 }
 

components/app_trace/sys_view/ext/logging.c

@@ -1,16 +1,8 @@
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stdio.h>
 #include <stdarg.h>
 #include <sdkconfig.h>

components/app_trace/test/CMakeLists.txt

@@ -1,3 +1,3 @@
 idf_component_register(SRC_DIRS "."
-                    INCLUDE_DIRS "."
-                    REQUIRES unity)
+                    PRIV_INCLUDE_DIRS "."
+                    PRIV_REQUIRES cmock driver)

components/app_trace/test/test_trace.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
@@ -5,6 +10,7 @@
 #include <stdarg.h>
 #include "unity.h"
 #include "driver/timer.h"
+#include "esp_rom_sys.h"
 #include "soc/cpu.h"
 #include "freertos/FreeRTOS.h"
 #include "freertos/semphr.h"
@@ -31,7 +37,7 @@ const static char *TAG = "esp_apptrace_test";
         else \
             ret = xSemaphoreTake(s_print_lock, portMAX_DELAY); \
         if (ret == pdTRUE) { \
-            ets_printf(format, ##__VA_ARGS__); \
+            esp_rom_printf(format, ##__VA_ARGS__); \
             if (xPortInIsrContext()) \
                 xSemaphoreGiveFromISR(s_print_lock, NULL); \
             else \
@@ -41,7 +47,7 @@ const static char *TAG = "esp_apptrace_test";
 #else
 #define ESP_APPTRACE_TEST_LOG( format, ... )   \
     do { \
-        ets_printf(format, ##__VA_ARGS__); \
+        esp_rom_printf(format, ##__VA_ARGS__); \
     } while(0)
 #endif
 
@@ -82,7 +88,7 @@ static void esp_apptrace_test_timer_init(int timer_group, int timer_idx, uint32_
     timer_enable_intr(timer_group, timer_idx);
 }
 
-#if CONFIG_SYSVIEW_ENABLE == 0
+#if CONFIG_APPTRACE_SV_ENABLE == 0
 #define ESP_APPTRACE_TEST_WRITE(_b_, _s_)            esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, _b_, _s_, ESP_APPTRACE_TMO_INFINITE)
 #define ESP_APPTRACE_TEST_WRITE_FROM_ISR(_b_, _s_)   esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, _b_, _s_, 0UL)
 #define ESP_APPTRACE_TEST_WRITE_NOWAIT(_b_, _s_)     esp_apptrace_write(ESP_APPTRACE_DEST_TRAX, _b_, _s_, 0)
@@ -138,7 +144,7 @@ static void esp_apptrace_test_timer_isr(void *arg)
     if (res != ESP_OK) {
     } else {
         if (0) {
-            ets_printf("tim-%d-%d: Written chunk%d %d bytes, %x\n",
+            esp_rom_printf("tim-%d-%d: Written chunk%d %d bytes, %x\n",
                        tim_arg->group, tim_arg->id, tim_arg->data.wr_cnt, tim_arg->data.buf_sz, tim_arg->data.wr_cnt & tim_arg->data.mask);
         }
         tim_arg->data.wr_err = 0;
@@ -161,9 +167,9 @@ static void esp_apptrace_test_timer_isr_crash(void *arg)
         memset(tim_arg->data.buf + 2 * sizeof(uint32_t), tim_arg->data.wr_cnt & tim_arg->data.mask, tim_arg->data.buf_sz - 2 * sizeof(uint32_t));
         int res = ESP_APPTRACE_TEST_WRITE_FROM_ISR(tim_arg->data.buf, tim_arg->data.buf_sz);
         if (res != ESP_OK) {
-            ets_printf("tim-%d-%d: Failed to write trace %d %x!\n", tim_arg->group, tim_arg->id, res, tim_arg->data.wr_cnt & tim_arg->data.mask);
+            esp_rom_printf("tim-%d-%d: Failed to write trace %d %x!\n", tim_arg->group, tim_arg->id, res, tim_arg->data.wr_cnt & tim_arg->data.mask);
         } else {
-            ets_printf("tim-%d-%d: Written chunk%d %d bytes, %x\n",
+            esp_rom_printf("tim-%d-%d: Written chunk%d %d bytes, %x\n",
                        tim_arg->group, tim_arg->id, tim_arg->data.wr_cnt, tim_arg->data.buf_sz, tim_arg->data.wr_cnt & tim_arg->data.mask);
             tim_arg->data.wr_cnt++;
         }
@@ -208,7 +214,7 @@ static void esp_apptrace_dummy_task(void *p)
 
     i = 0;
     while (!arg->stop) {
-        ESP_APPTRACE_TEST_LOGD("%x: dummy task work %d.%d", xTaskGetCurrentTaskHandle(), xPortGetCoreID(), i++);
+        ESP_APPTRACE_TEST_LOGD("%x: dummy task work %d.%d", xTaskGetCurrentTaskHandle(), cpu_hal_get_core_id(), i++);
         if (tmo_ticks) {
             vTaskDelay(tmo_ticks);
         }
@@ -253,7 +259,7 @@ static void esp_apptrace_test_task(void *p)
                 ESP_APPTRACE_TEST_LOGE("Failed to timer_isr_register (%d)!", res);
                 goto on_fail;
             }
-            *(uint32_t *)arg->timers[i].data.buf = ((uint32_t)inth[i]) | (1 << 31) | (xPortGetCoreID() ? 0x1 : 0);
+            *(uint32_t *)arg->timers[i].data.buf = ((uint32_t)inth[i]) | (1 << 31) | (cpu_hal_get_core_id() ? 0x1 : 0);
             ESP_APPTRACE_TEST_LOGI("%x: start timer %x period %u us", xTaskGetCurrentTaskHandle(), inth[i], arg->timers[i].data.period);
             res = timer_start(arg->timers[i].group, arg->timers[i].id);
             if (res != ESP_OK) {
@@ -263,7 +269,7 @@ static void esp_apptrace_test_task(void *p)
         }
     }
 
-    *(uint32_t *)arg->data.buf = (uint32_t)xTaskGetCurrentTaskHandle() | (xPortGetCoreID() ? 0x1 : 0);
+    *(uint32_t *)arg->data.buf = (uint32_t)xTaskGetCurrentTaskHandle() | (cpu_hal_get_core_id() ? 0x1 : 0);
     arg->data.wr_cnt = 0;
     arg->data.wr_err = 0;
     while (!arg->stop) {
@@ -404,7 +410,7 @@ static void esp_apptrace_test(esp_apptrace_test_cfg_t *test_cfg)
 #if ESP_APPTRACE_TEST_USE_PRINT_LOCK == 1
     s_print_lock = xSemaphoreCreateBinary();
     if (!s_print_lock) {
-        ets_printf("%s: Failed to create print lock!", TAG);
+        esp_rom_printf("%s: Failed to create print lock!", TAG);
         return;
     }
     xSemaphoreGive(s_print_lock);
@@ -743,7 +749,7 @@ static void esp_logtrace_task(void *p)
         ESP_LOGI(TAG, "%p: sample print 4 %c", xTaskGetCurrentTaskHandle(), ((i & 0xFF) % 95) + 32);
         ESP_LOGI(TAG, "%p: sample print 5 %f", xTaskGetCurrentTaskHandle(), 1.0);
         ESP_LOGI(TAG, "%p: sample print 6 %f", xTaskGetCurrentTaskHandle(), 3.45);
-        ESP_LOGI(TAG, "%p: logtrace task work %d.%d", xTaskGetCurrentTaskHandle(), xPortGetCoreID(), i);
+        ESP_LOGI(TAG, "%p: logtrace task work %d.%d", xTaskGetCurrentTaskHandle(), cpu_hal_get_core_id(), i);
         if (++i == 10000) {
             break;
         }

components/app_update/CMakeLists.txt

@@ -1,17 +1,25 @@
-idf_component_register(SRCS "esp_ota_ops.c" 
+idf_component_register(SRCS "esp_ota_ops.c"
                             "esp_app_desc.c"
                     INCLUDE_DIRS "include"
-                    REQUIRES spi_flash partition_table bootloader_support)
+                    REQUIRES spi_flash partition_table bootloader_support
+                    PRIV_REQUIRES esptool_py efuse)
 
 # esp_app_desc structure is added as an undefined symbol because otherwise the
 # linker will ignore this structure as it has no other files depending on it.
 target_link_libraries(${COMPONENT_LIB} INTERFACE "-u esp_app_desc")
 
+if(CONFIG_APP_PROJECT_VER_FROM_CONFIG)
+    # Ignore current PROJECT_VER (which was set in __project_get_revision()).
+    # Gets the version from the CONFIG_APP_PROJECT_VER.
+    idf_build_set_property(PROJECT_VER "${CONFIG_APP_PROJECT_VER}")
+endif()
+
 # cut PROJECT_VER and PROJECT_NAME to required 32 characters.
 idf_build_get_property(project_ver PROJECT_VER)
 idf_build_get_property(project_name PROJECT_NAME)
 string(SUBSTRING "${project_ver}" 0 31 PROJECT_VER_CUT)
 string(SUBSTRING "${project_name}" 0 31 PROJECT_NAME_CUT)
+message(STATUS "App \"${PROJECT_NAME_CUT}\" version: ${PROJECT_VER_CUT}")
 
 set_source_files_properties(
     SOURCE "esp_app_desc.c"
@@ -38,23 +46,44 @@ if(NOT BOOTLOADER_BUILD)
 
         add_custom_target(blank_ota_data ALL DEPENDS ${blank_otadata_file})
         add_dependencies(flash blank_ota_data)
+        add_dependencies(encrypted-flash blank_ota_data)
 
         set(otatool_py ${python} ${COMPONENT_DIR}/otatool.py)
 
-        set(esptool_args --esptool-args before=${CONFIG_ESPTOOLPY_BEFORE} after=${CONFIG_ESPTOOLPY_AFTER})
+        set(esptool_args "--esptool-args;before=${CONFIG_ESPTOOLPY_BEFORE};after=${CONFIG_ESPTOOLPY_AFTER}")
+        set(otatool_args "--partition-table-file;${PARTITION_CSV_PATH}"
+                         "--partition-table-offset;${PARTITION_TABLE_OFFSET}")
+        idf_component_get_property(esptool_py_dir esptool_py COMPONENT_DIR)
 
-        add_custom_target(read_otadata DEPENDS "${PARTITION_CSV_PATH}"
-                        COMMAND ${otatool_py} ${esptool_args}
-                        --partition-table-file ${PARTITION_CSV_PATH} 
-                        --partition-table-offset ${PARTITION_TABLE_OFFSET}
-                        read_otadata)
+        add_custom_target(read-otadata DEPENDS "${PARTITION_CSV_PATH}"
+            COMMAND ${CMAKE_COMMAND}
+            -D IDF_PATH="${idf_path}"
+            -D SERIAL_TOOL="${otatool_py}"
+            -D SERIAL_TOOL_ARGS="${esptool_args};${otatool_args};read_otadata"
+            -D WORKING_DIRECTORY="${build_dir}"
+            -P ${esptool_py_dir}/run_serial_tool.cmake
+            WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+            USES_TERMINAL
+            )
+        add_deprecated_target_alias(read_otadata read-otadata)
 
-        add_custom_target(erase_otadata DEPENDS "${PARTITION_CSV_PATH}"
-                        COMMAND ${otatool_py} ${esptool_args}
-                        --partition-table-file ${PARTITION_CSV_PATH}
-                        --partition-table-offset ${PARTITION_TABLE_OFFSET}
-                        erase_otadata)
+        add_custom_target(erase-otadata DEPENDS "${PARTITION_CSV_PATH}"
+            COMMAND ${CMAKE_COMMAND}
+            -D IDF_PATH="${idf_path}"
+            -D SERIAL_TOOL="${otatool_py}"
+            -D SERIAL_TOOL_ARGS="${esptool_args};${otatool_args};erase_otadata"
+            -D WORKING_DIRECTORY="${build_dir}"
+            -P ${esptool_py_dir}/run_serial_tool.cmake
+            WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR}
+            USES_TERMINAL
+            )
+        add_deprecated_target_alias(erase_otadata erase-otadata)
 
-        esptool_py_flash_project_args(otadata ${otadata_offset} "${blank_otadata_file}" FLASH_IN_PROJECT)
+        idf_component_get_property(main_args esptool_py FLASH_ARGS)
+        idf_component_get_property(sub_args esptool_py FLASH_SUB_ARGS)
+        esptool_py_flash_target(otadata-flash "${main_args}" "${sub_args}")
+        esptool_py_flash_target_image(otadata-flash otadata "${otadata_offset}" "${blank_otadata_file}")
+
+        esptool_py_flash_target_image(flash otadata "${otadata_offset}" "${blank_otadata_file}")
     endif()
 endif()

components/app_update/Kconfig.projbuild

@@ -22,6 +22,20 @@ menu "Application manager"
             The PROJECT_NAME variable from the build system will not affect the firmware image.
             This value will not be contained in the esp_app_desc structure.
 
+    config APP_PROJECT_VER_FROM_CONFIG
+        bool "Get the project version from Kconfig"
+        default n
+        help
+            If this is enabled, then config item APP_PROJECT_VER will be used for the variable PROJECT_VER.
+            Other ways to set PROJECT_VER will be ignored.
+
+    config APP_PROJECT_VER
+        string "Project version"
+        default "1"
+        depends on APP_PROJECT_VER_FROM_CONFIG
+        help
+            Project version
+
     config APP_RETRIEVE_LEN_ELF_SHA
         int "The length of APP ELF SHA is stored in RAM(chars)"
         default 16

components/app_update/Makefile.projbuild

@@ -24,7 +24,7 @@ $(BLANK_OTA_DATA_FILE): partition_table_get_info $(PARTITION_TABLE_CSV_PATH) | c
 
 blank_ota_data: $(BLANK_OTA_DATA_FILE)
 
-# If there is no otadata partition, both OTA_DATA_OFFSET and BLANK_OTA_DATA_FILE 
+# If there is no otadata partition, both OTA_DATA_OFFSET and BLANK_OTA_DATA_FILE
 # expand to empty values.
 ESPTOOL_ALL_FLASH_ARGS += $(OTA_DATA_OFFSET) $(BLANK_OTA_DATA_FILE)
 
@@ -36,8 +36,8 @@ erase_otadata: $(PARTITION_TABLE_CSV_PATH) partition_table_get_info | check_pyth
 	erase_otadata
 
 read_otadata: $(PARTITION_TABLE_CSV_PATH) partition_table_get_info | check_python_dependencies
-	$(OTATOOL_PY) $(ESPTOOL_ARGS) --partition-table-file $(PARTITION_TABLE_CSV_PATH) \ 
-	--partition-table-offset $(partition_table_offset) \ 
+	$(OTATOOL_PY) $(ESPTOOL_ARGS) --partition-table-file $(PARTITION_TABLE_CSV_PATH) \
+	--partition-table-offset $(partition_table_offset) \
 	read_otadata
 
 all: blank_ota_data

components/app_update/component.mk

@@ -3,54 +3,54 @@
 #
 # (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)
 
-# esp_app_desc structure is added as an undefined symbol because otherwise the 
+# esp_app_desc structure is added as an undefined symbol because otherwise the
 # linker will ignore this structure as it has no other files depending on it.
 COMPONENT_ADD_LDFLAGS += -u esp_app_desc
 
 ifndef IS_BOOTLOADER_BUILD
-GET_PROJECT_VER ?=
-ifeq ("${PROJECT_VER}", "")
-ifeq ("$(wildcard ${PROJECT_PATH}/version.txt)","")
+    # If ``CONFIG_APP_PROJECT_VER_FROM_CONFIG`` option is set, the value of ``CONFIG_APP_PROJECT_VER`` will be used
+    # Else, if ``PROJECT_VER`` variable set in project Makefile file, its value will be used.
+    # Else, if the ``$PROJECT_PATH/version.txt`` exists, its contents will be used as ``PROJECT_VER``.
+    # Else, if the project is located inside a Git repository, the output of git describe will be used.
+    # Otherwise, ``PROJECT_VER`` will be "1".
+    ifdef CONFIG_APP_PROJECT_VER_FROM_CONFIG
+        PROJECT_VER:= $(CONFIG_APP_PROJECT_VER)
+    else
+        ifneq ("${PROJECT_VER}", "")
+            PROJECT_VER:= $(PROJECT_VER)
+        else
+            ifneq ("$(wildcard ${PROJECT_PATH}/version.txt)","")
+                PROJECT_VER := $(shell cat ${PROJECT_PATH}/version.txt)
+            else
+                GIT_PROJECT_VER := $(shell cd ${PROJECT_PATH} && git describe --always --tags --dirty 2> /dev/null)
+                ifeq ("${GIT_PROJECT_VER}", "")
+                    PROJECT_VER := "1"
+                    $(info Project is not inside a git repository, or git repository has no commits)
+                    $(info will not use 'git describe' to determine PROJECT_VER.)
+                else
+                    PROJECT_VER:= $(GIT_PROJECT_VER)
+                endif # a git repository
+            endif # version.txt
+        endif # PROJECT_VER
+    endif # CONFIG_APP_PROJECT_VER_FROM_CONFIG
 
-GET_PROJECT_VER := $(shell cd ${PROJECT_PATH} && git describe --always --tags --dirty 2> /dev/null)
-ifeq ("${GET_PROJECT_VER}", "")
-GET_PROJECT_VER := "1"
-$(info Project is not inside a git repository, will not use 'git describe' to determine PROJECT_VER.)
-endif
+    # cut PROJECT_VER and PROJECT_NAME to required 32 characters.
+    PROJECT_VER_CUT  := $(shell echo "$(PROJECT_VER)"  | cut -c 1-31)
+    PROJECT_NAME_CUT := $(shell echo "$(PROJECT_NAME)" | cut -c 1-31)
 
-else
-# read from version.txt
-GET_PROJECT_VER := $(shell cat ${PROJECT_PATH}/version.txt)
-endif
-endif
-# If ``PROJECT_VER`` variable set in project Makefile file, its value will be used.
-# Else, if the ``$PROJECT_PATH/version.txt`` exists, its contents will be used as ``PROJECT_VER``.
-# Else, if the project is located inside a Git repository, the output of git describe will be used.
-# Otherwise, ``PROJECT_VER`` will be "1".
+    $(info App "$(PROJECT_NAME_CUT)" version: $(PROJECT_VER_CUT))
 
-ifeq ("${PROJECT_VER}", "")
-PROJECT_VER:= $(GET_PROJECT_VER)
-else
-PROJECT_VER:= $(PROJECT_VER)
-endif
+    NEW_DEFINES:= "$(PROJECT_VER_CUT) $(PROJECT_NAME_CUT) $(IDF_VER)"
+    ifeq ("$(wildcard ${TMP_DEFINES})","")
+        OLD_DEFINES:= ""
+    else
+        OLD_DEFINES:= "$(shell cat $(TMP_DEFINES))"
+    endif
 
-# cut PROJECT_VER and PROJECT_NAME to required 32 characters.
-PROJECT_VER_CUT  := $(shell echo "$(PROJECT_VER)"  | cut -c 1-31)
-PROJECT_NAME_CUT := $(shell echo "$(PROJECT_NAME)" | cut -c 1-31)
+    # If NEW_DEFINES (PROJECT_VER, PROJECT_NAME) were changed then rebuild only esp_app_desc.
+    ifneq (${NEW_DEFINES}, ${OLD_DEFINES})
+        $(shell echo $(NEW_DEFINES) > $(TMP_DEFINES); rm -f esp_app_desc.o;)
+    endif
 
-$(info App "$(PROJECT_NAME_CUT)" version: $(PROJECT_VER_CUT))
-
-NEW_DEFINES:= "$(PROJECT_VER_CUT) $(PROJECT_NAME_CUT) $(IDF_VER)"
-ifeq ("$(wildcard ${TMP_DEFINES})","")
-OLD_DEFINES:= ""
-else
-OLD_DEFINES:= "$(shell cat $(TMP_DEFINES))"
-endif
-
-# If NEW_DEFINES (PROJECT_VER, PROJECT_NAME) were changed then rebuild only esp_app_desc.
-ifneq (${NEW_DEFINES}, ${OLD_DEFINES})
-$(shell echo $(NEW_DEFINES) > $(TMP_DEFINES); rm -f esp_app_desc.o;)
-endif
-
-esp_app_desc.o: CPPFLAGS += -D PROJECT_VER=\""$(PROJECT_VER_CUT)"\" -D PROJECT_NAME=\""$(PROJECT_NAME_CUT)"\"
-endif
+    esp_app_desc.o: CPPFLAGS += -D PROJECT_VER=\""$(PROJECT_VER_CUT)"\" -D PROJECT_NAME=\""$(PROJECT_NAME_CUT)"\"
+endif # IS_BOOTLOADER_BUILD

components/app_update/esp_app_desc.c

@@ -1,16 +1,8 @@
-// Copyright 2017-2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <assert.h>
 #include <sys/param.h>
@@ -80,7 +72,7 @@ __attribute__((constructor)) void esp_ota_init_app_elf_sha256(void)
 /* The esp_app_desc.app_elf_sha256 should be possible to print in panic handler during cache is disabled.
  * But because the cache is disabled the reading esp_app_desc.app_elf_sha256 is not right and
  * can lead to a complete lock-up of the CPU.
- * For this reason we do a reading of esp_app_desc.app_elf_sha256 while start up in esp_ota_init_app_elf_sha256() 
+ * For this reason we do a reading of esp_app_desc.app_elf_sha256 while start up in esp_ota_init_app_elf_sha256()
  * and keep it in the static s_app_elf_sha256 value.
  */
 int IRAM_ATTR esp_ota_get_app_elf_sha256(char* dst, size_t size)

components/app_update/esp_ota_ops.c

@@ -1,16 +1,8 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -19,8 +11,6 @@
 #include <stdio.h>
 #include <string.h>
 #include <assert.h>
-#include <freertos/FreeRTOS.h>
-#include <freertos/task.h>
 
 #include "esp_err.h"
 #include "esp_partition.h"
@@ -33,24 +23,24 @@
 
 #include "esp_ota_ops.h"
 #include "sys/queue.h"
-#include "esp32/rom/crc.h"
 #include "esp_log.h"
 #include "esp_flash_partitions.h"
 #include "bootloader_common.h"
 #include "sys/param.h"
 #include "esp_system.h"
 #include "esp_efuse.h"
-
+#include "esp_attr.h"
 
 #define SUB_TYPE_ID(i) (i & 0x0F)
 
+/* Partial_data is word aligned so no reallocation is necessary for encrypted flash write */
 typedef struct ota_ops_entry_ {
     uint32_t handle;
     const esp_partition_t *part;
-    uint32_t erased_size;
+    bool need_erase;
     uint32_t wrote_size;
     uint8_t partial_bytes;
-    uint8_t partial_data[16];
+    WORD_ALIGNED_ATTR uint8_t partial_data[16];
     LIST_ENTRY(ota_ops_entry_) entries;
 } ota_ops_entry_t;
 
@@ -153,16 +143,17 @@ esp_err_t esp_ota_begin(const esp_partition_t *partition, size_t image_size, esp
     }
 #endif
 
-    // If input image size is 0 or OTA_SIZE_UNKNOWN, erase entire partition
-    if ((image_size == 0) || (image_size == OTA_SIZE_UNKNOWN)) {
-        ret = esp_partition_erase_range(partition, 0, partition->size);
-    } else {
-        const int aligned_erase_size = (image_size + SPI_FLASH_SEC_SIZE - 1) & ~(SPI_FLASH_SEC_SIZE - 1);
-        ret = esp_partition_erase_range(partition, 0, aligned_erase_size);
-    }
-
-    if (ret != ESP_OK) {
-        return ret;
+    if (image_size != OTA_WITH_SEQUENTIAL_WRITES) {
+        // If input image size is 0 or OTA_SIZE_UNKNOWN, erase entire partition
+        if ((image_size == 0) || (image_size == OTA_SIZE_UNKNOWN)) {
+            ret = esp_partition_erase_range(partition, 0, partition->size);
+        } else {
+            const int aligned_erase_size = (image_size + SPI_FLASH_SEC_SIZE - 1) & ~(SPI_FLASH_SEC_SIZE - 1);
+            ret = esp_partition_erase_range(partition, 0, aligned_erase_size);
+        }
+        if (ret != ESP_OK) {
+            return ret;
+        }
     }
 
     new_entry = (ota_ops_entry_t *) calloc(sizeof(ota_ops_entry_t), 1);
@@ -172,14 +163,9 @@ esp_err_t esp_ota_begin(const esp_partition_t *partition, size_t image_size, esp
 
     LIST_INSERT_HEAD(&s_ota_ops_entries_head, new_entry, entries);
 
-    if ((image_size == 0) || (image_size == OTA_SIZE_UNKNOWN)) {
-        new_entry->erased_size = partition->size;
-    } else {
-        new_entry->erased_size = image_size;
-    }
-
     new_entry->part = partition;
     new_entry->handle = ++s_ota_ops_last_handle;
+    new_entry->need_erase = (image_size == OTA_WITH_SEQUENTIAL_WRITES);
     *out_handle = new_entry->handle;
     return ESP_OK;
 }
@@ -198,8 +184,22 @@ esp_err_t esp_ota_write(esp_ota_handle_t handle, const void *data, size_t size)
     // find ota handle in linked list
     for (it = LIST_FIRST(&s_ota_ops_entries_head); it != NULL; it = LIST_NEXT(it, entries)) {
         if (it->handle == handle) {
-            // must erase the partition before writing to it
-            assert(it->erased_size > 0 && "must erase the partition before writing to it");
+            if (it->need_erase) {
+                // must erase the partition before writing to it
+                uint32_t first_sector = it->wrote_size / SPI_FLASH_SEC_SIZE;
+                uint32_t last_sector = (it->wrote_size + size) / SPI_FLASH_SEC_SIZE;
+
+                ret = ESP_OK;
+                if ((it->wrote_size % SPI_FLASH_SEC_SIZE) == 0) {
+                    ret = esp_partition_erase_range(it->part, it->wrote_size, ((last_sector - first_sector) + 1) * SPI_FLASH_SEC_SIZE);
+                } else if (first_sector != last_sector) {
+                    ret = esp_partition_erase_range(it->part, (first_sector + 1) * SPI_FLASH_SEC_SIZE, (last_sector - first_sector) * SPI_FLASH_SEC_SIZE);
+                }
+                if (ret != ESP_OK) {
+                    return ret;
+                }
+            }
+
             if (it->wrote_size == 0 && it->partial_bytes == 0 && size > 0 && data_bytes[0] != ESP_IMAGE_HEADER_MAGIC) {
                 ESP_LOGE(TAG, "OTA image has invalid magic byte (expected 0xE9, saw 0x%02x)", data_bytes[0]);
                 return ESP_ERR_OTA_VALIDATE_FAILED;
@@ -250,16 +250,70 @@ esp_err_t esp_ota_write(esp_ota_handle_t handle, const void *data, size_t size)
     return ESP_ERR_INVALID_ARG;
 }
 
-esp_err_t esp_ota_end(esp_ota_handle_t handle)
+esp_err_t esp_ota_write_with_offset(esp_ota_handle_t handle, const void *data, size_t size, uint32_t offset)
 {
+    const uint8_t *data_bytes = (const uint8_t *)data;
+    esp_err_t ret;
     ota_ops_entry_t *it;
-    esp_err_t ret = ESP_OK;
 
+    if (data == NULL) {
+        ESP_LOGE(TAG, "write data is invalid");
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    // find ota handle in linked list
+    for (it = LIST_FIRST(&s_ota_ops_entries_head); it != NULL; it = LIST_NEXT(it, entries)) {
+        if (it->handle == handle) {
+            // must erase the partition before writing to it
+            assert(it->need_erase == 0 && "must erase the partition before writing to it");
+
+            /* esp_ota_write_with_offset is used to write data in non contiguous manner.
+             * Hence, unaligned data(less than 16 bytes) cannot be cached if flash encryption is enabled.
+             */
+            if (esp_flash_encryption_enabled() && (size % 16)) {
+                ESP_LOGE(TAG, "Size should be 16byte aligned for flash encryption case");
+                return ESP_ERR_INVALID_ARG;
+            }
+            ret = esp_partition_write(it->part, offset, data_bytes, size);
+            if (ret == ESP_OK) {
+                it->wrote_size += size;
+            }
+            return ret;
+        }
+    }
+
+    // OTA handle is not found in linked list
+    ESP_LOGE(TAG,"OTA handle not found");
+    return ESP_ERR_INVALID_ARG;
+}
+
+static ota_ops_entry_t *get_ota_ops_entry(esp_ota_handle_t handle)
+{
+    ota_ops_entry_t *it = NULL;
     for (it = LIST_FIRST(&s_ota_ops_entries_head); it != NULL; it = LIST_NEXT(it, entries)) {
         if (it->handle == handle) {
             break;
         }
     }
+   return it;
+}
+
+esp_err_t esp_ota_abort(esp_ota_handle_t handle)
+{
+    ota_ops_entry_t *it = get_ota_ops_entry(handle);
+
+    if (it == NULL) {
+        return ESP_ERR_NOT_FOUND;
+    }
+    LIST_REMOVE(it, entries);
+    free(it);
+    return ESP_OK;
+}
+
+esp_err_t esp_ota_end(esp_ota_handle_t handle)
+{
+    ota_ops_entry_t *it = get_ota_ops_entry(handle);
+    esp_err_t ret = ESP_OK;
 
     if (it == NULL) {
         return ESP_ERR_NOT_FOUND;
@@ -268,7 +322,7 @@ esp_err_t esp_ota_end(esp_ota_handle_t handle)
     /* 'it' holds the ota_ops_entry_t for 'handle' */
 
     // esp_ota_end() is only valid if some data was written to this handle
-    if ((it->erased_size == 0) || (it->wrote_size == 0)) {
+    if (it->wrote_size == 0) {
         ret = ESP_ERR_INVALID_ARG;
         goto cleanup;
     }
@@ -317,7 +371,7 @@ static esp_err_t rewrite_ota_seq(esp_ota_select_entry_t *two_otadata, uint32_t s
     }
 }
 
-static uint8_t get_ota_partition_count(void)
+uint8_t esp_ota_get_app_partition_count(void)
 {
     uint16_t ota_app_count = 0;
     while (esp_partition_find_first(ESP_PARTITION_TYPE_APP, ESP_PARTITION_SUBTYPE_APP_OTA_MIN + ota_app_count, NULL) != NULL) {
@@ -335,7 +389,7 @@ static esp_err_t esp_rewrite_ota_data(esp_partition_subtype_t subtype)
         return ESP_ERR_NOT_FOUND;
     }
 
-    int ota_app_count = get_ota_partition_count();
+    uint8_t ota_app_count = esp_ota_get_app_partition_count();
     if (SUB_TYPE_ID(subtype) >= ota_app_count) {
         return ESP_ERR_INVALID_ARG;
     }
@@ -453,7 +507,7 @@ const esp_partition_t *esp_ota_get_boot_partition(void)
         return NULL;
     }
 
-    int ota_app_count = get_ota_partition_count();
+    int ota_app_count = esp_ota_get_app_partition_count();
     ESP_LOGD(TAG, "found ota app max = %d", ota_app_count);
 
     if ((bootloader_common_ota_select_invalid(&otadata[0]) &&
@@ -598,7 +652,7 @@ bool esp_ota_check_rollback_is_possible(void)
         return false;
     }
 
-    int ota_app_count = get_ota_partition_count();
+    int ota_app_count = esp_ota_get_app_partition_count();
     if (ota_app_count == 0) {
         return false;
     }
@@ -656,7 +710,7 @@ static esp_err_t esp_ota_current_ota_is_workable(bool valid)
     }
 
     int active_otadata = bootloader_common_get_active_otadata(otadata);
-    if (active_otadata != -1 && get_ota_partition_count() != 0) {
+    if (active_otadata != -1 && esp_ota_get_app_partition_count() != 0) {
         if (valid == true && otadata[active_otadata].ota_state != ESP_OTA_IMG_VALID) {
             otadata[active_otadata].ota_state = ESP_OTA_IMG_VALID;
             ESP_LOGD(TAG, "OTA[current] partition is marked as VALID");
@@ -725,7 +779,7 @@ const esp_partition_t* esp_ota_get_last_invalid_partition(void)
 
     int invalid_otadata = get_last_invalid_otadata(otadata);
 
-    int ota_app_count = get_ota_partition_count();
+    int ota_app_count = esp_ota_get_app_partition_count();
     if (invalid_otadata != -1 && ota_app_count != 0) {
         int ota_slot = (otadata[invalid_otadata].ota_seq - 1) % ota_app_count;
         ESP_LOGD(TAG, "Find invalid ota_%d app", ESP_PARTITION_SUBTYPE_APP_OTA_MIN + ota_slot);
@@ -753,7 +807,7 @@ esp_err_t esp_ota_get_state_partition(const esp_partition_t *partition, esp_ota_
     }
 
     esp_ota_select_entry_t otadata[2];
-    int ota_app_count = get_ota_partition_count();
+    int ota_app_count = esp_ota_get_app_partition_count();
     if (read_otadata(otadata) == NULL || ota_app_count == 0) {
         return ESP_ERR_NOT_FOUND;
     }
@@ -785,7 +839,7 @@ esp_err_t esp_ota_erase_last_boot_app_partition(void)
     }
 
     int active_otadata = bootloader_common_get_active_otadata(otadata);
-    int ota_app_count = get_ota_partition_count();
+    int ota_app_count = esp_ota_get_app_partition_count();
     if (active_otadata == -1 || ota_app_count == 0) {
         return ESP_FAIL;
     }
@@ -821,3 +875,87 @@ esp_err_t esp_ota_erase_last_boot_app_partition(void)
 
     return ESP_OK;
 }
+
+#if SOC_EFUSE_SECURE_BOOT_KEY_DIGESTS > 1 && CONFIG_SECURE_BOOT_V2_ENABLED
+esp_err_t esp_ota_revoke_secure_boot_public_key(esp_ota_secure_boot_public_key_index_t index) {
+
+    if (!esp_secure_boot_enabled()) {
+        ESP_LOGE(TAG, "Secure boot v2 has not been enabled.");
+        return ESP_FAIL;
+    }
+
+    if (index != SECURE_BOOT_PUBLIC_KEY_INDEX_0 &&
+         index != SECURE_BOOT_PUBLIC_KEY_INDEX_1 &&
+         index != SECURE_BOOT_PUBLIC_KEY_INDEX_2) {
+        ESP_LOGE(TAG, "Invalid Index found for public key revocation %d.", index);
+        return ESP_ERR_INVALID_ARG;
+    }
+
+    esp_image_sig_public_key_digests_t app_digests = { 0 };
+    esp_err_t err = esp_secure_boot_get_signature_blocks_for_running_app(true, &app_digests);
+    if (err != ESP_OK || app_digests.num_digests == 0) {
+        ESP_LOGE(TAG, "This app is not signed, but check signature on update is enabled in config. It won't be possible to verify any update.");
+        return ESP_FAIL;
+    }
+
+    esp_err_t ret;
+    ets_secure_boot_key_digests_t trusted_keys;
+    ret = esp_secure_boot_read_key_digests(&trusted_keys);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Could not read the secure boot key digests from efuse. Aborting..");
+        return ESP_FAIL;
+    }
+
+    if (trusted_keys.key_digests[index] == NULL) {
+        ESP_LOGI(TAG, "Trusted Key block(%d) already revoked.", index);
+        return ESP_OK;
+    }
+
+    esp_image_sig_public_key_digests_t trusted_digests = { 0 };
+    for (unsigned i = 0; i < SECURE_BOOT_NUM_BLOCKS; i++) {
+        if (i == index) {
+            continue; // omitting - to find if there is a valid key after revoking this digest
+        }
+
+        if (trusted_keys.key_digests[i] != NULL) {
+            bool all_zeroes = true;
+            for (unsigned j = 0; j < ESP_SECURE_BOOT_DIGEST_LEN; j++) {
+                all_zeroes = all_zeroes && (*(uint8_t *)(trusted_keys.key_digests[i] + j) == 0);
+            }
+            if (!all_zeroes) {
+                memcpy(trusted_digests.key_digests[trusted_digests.num_digests++], (uint8_t *)trusted_keys.key_digests[i], ESP_SECURE_BOOT_DIGEST_LEN);
+            } else {
+                ESP_LOGD(TAG, "Empty trusted key block (%d).", i);
+            }
+        }
+    }
+
+    bool match = false;
+    for (unsigned i = 0; i < trusted_digests.num_digests; i++) {
+        if (match == true) {
+            break;
+        }
+
+        for (unsigned j = 0; j < app_digests.num_digests; j++) {
+            if (memcmp(trusted_digests.key_digests[i], app_digests.key_digests[j], ESP_SECURE_BOOT_DIGEST_LEN) == 0) {
+                ESP_LOGI(TAG, "App key block(%d) matches Trusted key block(%d)[%d -> Next active trusted key block].", j, i, i);
+                esp_err_t err = esp_efuse_set_digest_revoke(index);
+                if (err != ESP_OK) {
+                    ESP_LOGE(TAG, "Failed to revoke digest (0x%x).", err);
+                    return ESP_FAIL;
+                }
+                ESP_LOGI(TAG, "Revoked signature block %d.", index);
+                match = true;
+                break;
+            }
+        }
+    }
+
+    if (match == false) {
+        ESP_LOGE(TAG, "Running app doesn't have another valid secure boot key. Cannot revoke current key(%d).", index);
+        return ESP_FAIL;
+    }
+
+    return ESP_OK;
+}
+#endif

components/app_update/include/esp_ota_ops.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 
 #ifndef _OTA_OPS_H
 #define _OTA_OPS_H
@@ -22,6 +14,7 @@
 #include "esp_partition.h"
 #include "esp_image_format.h"
 #include "esp_flash_partitions.h"
+#include "soc/soc_caps.h"
 
 #ifdef __cplusplus
 extern "C"
@@ -29,6 +22,7 @@ extern "C"
 #endif
 
 #define OTA_SIZE_UNKNOWN 0xffffffff /*!< Used for esp_ota_begin() if new image size is unknown */
+#define OTA_WITH_SEQUENTIAL_WRITES 0xfffffffe /*!< Used for esp_ota_begin() if new image size is unknown and erase can be done in incremental manner (assuming write operation is in continuous sequence) */
 
 #define ESP_ERR_OTA_BASE                         0x1500                     /*!< Base error code for ota_ops api */
 #define ESP_ERR_OTA_PARTITION_CONFLICT           (ESP_ERR_OTA_BASE + 0x01)  /*!< Error if request was to write or erase the current running partition */
@@ -49,7 +43,7 @@ typedef uint32_t esp_ota_handle_t;
 
 /**
  * @brief   Return esp_app_desc structure. This structure includes app version.
- * 
+ *
  * Return description for running app.
  * @return Pointer to esp_app_desc structure.
  */
@@ -117,6 +111,29 @@ esp_err_t esp_ota_begin(const esp_partition_t* partition, size_t image_size, esp
  */
 esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);
 
+/**
+ * @brief   Write OTA update data to partition
+ *
+ * This function can write data in non contiguous manner.
+ * If flash encryption is enabled, data should be 16 byte aligned.
+ *
+ * @param handle  Handle obtained from esp_ota_begin
+ * @param data    Data buffer to write
+ * @param size    Size of data buffer in bytes
+ * @param offset  Offset in flash partition
+ *
+ * @note While performing OTA, if the packets arrive out of order, esp_ota_write_with_offset() can be used to write data in non contiguous manner.
+ *       Use of esp_ota_write_with_offset() in combination with esp_ota_write() is not recommended.
+ *
+ * @return
+ *    - ESP_OK: Data was written to flash successfully.
+ *    - ESP_ERR_INVALID_ARG: handle is invalid.
+ *    - ESP_ERR_OTA_VALIDATE_FAILED: First byte of image contains invalid app image magic byte.
+ *    - ESP_ERR_FLASH_OP_TIMEOUT or ESP_ERR_FLASH_OP_FAIL: Flash write failed.
+ *    - ESP_ERR_OTA_SELECT_INFO_INVALID: OTA data partition has invalid contents
+ */
+esp_err_t esp_ota_write_with_offset(esp_ota_handle_t handle, const void *data, size_t size, uint32_t offset);
+
 /**
  * @brief Finish OTA update and validate newly written app image.
  *
@@ -133,6 +150,18 @@ esp_err_t esp_ota_write(esp_ota_handle_t handle, const void* data, size_t size);
  */
 esp_err_t esp_ota_end(esp_ota_handle_t handle);
 
+/**
+ * @brief Abort OTA update, free the handle and memory associated with it.
+ *
+ * @param handle obtained from esp_ota_begin().
+ *
+ * @return
+ *    - ESP_OK: Handle and its associated memory is freed successfully.
+ *    - ESP_ERR_NOT_FOUND: OTA handle was not found.
+ */
+esp_err_t esp_ota_abort(esp_ota_handle_t handle);
+
+
 /**
  * @brief Configure OTA data for a new boot partition
  *
@@ -201,7 +230,7 @@ const esp_partition_t* esp_ota_get_next_update_partition(const esp_partition_t *
 
 /**
  * @brief Returns esp_app_desc structure for app partition. This structure includes app version.
- * 
+ *
  * Returns a description for the requested app partition.
  * @param[in] partition     Pointer to app partition. (only app partition)
  * @param[out] app_desc     Structure of info about app.
@@ -215,6 +244,14 @@ const esp_partition_t* esp_ota_get_next_update_partition(const esp_partition_t *
  */
 esp_err_t esp_ota_get_partition_description(const esp_partition_t *partition, esp_app_desc_t *app_desc);
 
+/**
+ * @brief Returns number of ota partitions provided in partition table.
+ *
+ * @return
+ *  - Number of OTA partitions
+ */
+uint8_t esp_ota_get_app_partition_count(void);
+
 /**
  * @brief This function is called to indicate that the running app is working well.
  *
@@ -276,6 +313,34 @@ esp_err_t esp_ota_erase_last_boot_app_partition(void);
  */
 bool esp_ota_check_rollback_is_possible(void);
 
+#if SOC_EFUSE_SECURE_BOOT_KEY_DIGESTS > 1 && (CONFIG_SECURE_BOOT_V2_ENABLED || __DOXYGEN__)
+
+/**
+ * Secure Boot V2 public key indexes.
+ */
+typedef enum {
+    SECURE_BOOT_PUBLIC_KEY_INDEX_0,     /*!< Points to the 0th index of the Secure Boot v2 public key */
+    SECURE_BOOT_PUBLIC_KEY_INDEX_1,     /*!< Points to the 1st index of the Secure Boot v2 public key */
+    SECURE_BOOT_PUBLIC_KEY_INDEX_2      /*!< Points to the 2nd index of the Secure Boot v2 public key */
+} esp_ota_secure_boot_public_key_index_t;
+
+/**
+ * @brief Revokes the old signature digest. To be called in the application after the rollback logic.
+ *
+ * Relevant for Secure boot v2 on ESP32-S2 where upto 3 key digests can be stored (Key #N-1, Key #N, Key #N+1).
+ * When key #N-1 used to sign an app is invalidated, an OTA update is to be sent with an app signed with key #N-1 & Key #N.
+ * After successfully booting the OTA app should call this function to revoke Key #N-1.
+ *
+ * @param index - The index of the signature block to be revoked
+ *
+ * @return
+ *        - ESP_OK: If revocation is successful.
+ *        - ESP_ERR_INVALID_ARG: If the index of the public key to be revoked is incorrect.
+ *        - ESP_FAIL: If secure boot v2 has not been enabled.
+ */
+esp_err_t esp_ota_revoke_secure_boot_public_key(esp_ota_secure_boot_public_key_index_t index);
+#endif /* SOC_EFUSE_SECURE_BOOT_KEY_DIGESTS > 1 */
+
 #ifdef __cplusplus
 }
 #endif

components/app_update/otatool.py

@@ -3,36 +3,25 @@
 # otatool is used to perform ota-level operations - flashing ota partition
 # erasing ota partition and switching ota partition
 #
-# Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http:#www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from __future__ import print_function, division
+# SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+# SPDX-License-Identifier: Apache-2.0
+from __future__ import division, print_function
+
 import argparse
-import os
-import sys
 import binascii
-import tempfile
 import collections
+import os
 import struct
+import sys
+import tempfile
 
 try:
-    from parttool import PartitionName, PartitionType, ParttoolTarget, PARTITION_TABLE_OFFSET
+    from parttool import PARTITION_TABLE_OFFSET, PartitionName, PartitionType, ParttoolTarget
 except ImportError:
-    COMPONENTS_PATH = os.path.expandvars(os.path.join("$IDF_PATH", "components"))
-    PARTTOOL_DIR = os.path.join(COMPONENTS_PATH, "partition_table")
-
+    COMPONENTS_PATH = os.path.expandvars(os.path.join('$IDF_PATH', 'components'))
+    PARTTOOL_DIR = os.path.join(COMPONENTS_PATH, 'partition_table')
     sys.path.append(PARTTOOL_DIR)
-    from parttool import PartitionName, PartitionType, ParttoolTarget, PARTITION_TABLE_OFFSET
+    from parttool import PARTITION_TABLE_OFFSET, PartitionName, PartitionType, ParttoolTarget
 
 __version__ = '2.0'
 
@@ -48,7 +37,7 @@ def status(msg):
 
 class OtatoolTarget():
 
-    OTADATA_PARTITION = PartitionType("data", "ota")
+    OTADATA_PARTITION = PartitionType('data', 'ota')
 
     def __init__(self, port=None, baud=None, partition_table_offset=PARTITION_TABLE_OFFSET, partition_table_file=None,
                  spi_flash_sec_size=SPI_FLASH_SEC_SIZE, esptool_args=[], esptool_write_args=[],
@@ -61,16 +50,14 @@ class OtatoolTarget():
         temp_file.close()
         try:
             self.target.read_partition(OtatoolTarget.OTADATA_PARTITION, temp_file.name)
-            with open(temp_file.name, "rb") as f:
+            with open(temp_file.name, 'rb') as f:
                 self.otadata = f.read()
-        except Exception:
-            self.otadata = None
         finally:
             os.unlink(temp_file.name)
 
     def _check_otadata_partition(self):
         if not self.otadata:
-            raise Exception("No otadata partition found")
+            raise Exception('No otadata partition found')
 
     def erase_otadata(self):
         self._check_otadata_partition()
@@ -79,7 +66,7 @@ class OtatoolTarget():
     def _get_otadata_info(self):
         info = []
 
-        otadata_info = collections.namedtuple("otadata_info", "seq crc")
+        otadata_info = collections.namedtuple('otadata_info', 'seq crc')
 
         for i in range(2):
             start = i * (self.spi_flash_sec_size >> 1)
@@ -95,7 +82,7 @@ class OtatoolTarget():
 
     def _get_partition_id_from_ota_id(self, ota_id):
         if isinstance(ota_id, int):
-            return PartitionType("app", "ota_" + str(ota_id))
+            return PartitionType('app', 'ota_' + str(ota_id))
         else:
             return PartitionName(ota_id)
 
@@ -124,7 +111,7 @@ class OtatoolTarget():
         ota_partitions = sorted(ota_partitions, key=lambda p: p.subtype)
 
         if not ota_partitions:
-            raise Exception("No ota app partitions found")
+            raise Exception('No ota app partitions found')
 
         # Look for the app partition to switch to
         ota_partition_next = None
@@ -137,7 +124,7 @@ class OtatoolTarget():
 
             ota_partition_next = list(ota_partition_next)[0]
         except IndexError:
-            raise Exception("Partition to switch to not found")
+            raise Exception('Partition to switch to not found')
 
         otadata_info = self._get_otadata_info()
 
@@ -177,15 +164,15 @@ class OtatoolTarget():
             ota_seq_next = target_seq
 
         # Create binary data from computed values
-        ota_seq_next = struct.pack("I", ota_seq_next)
+        ota_seq_next = struct.pack('I', ota_seq_next)
         ota_seq_crc_next = binascii.crc32(ota_seq_next, 0xFFFFFFFF) % (1 << 32)
-        ota_seq_crc_next = struct.pack("I", ota_seq_crc_next)
+        ota_seq_crc_next = struct.pack('I', ota_seq_crc_next)
 
         temp_file = tempfile.NamedTemporaryFile(delete=False)
         temp_file.close()
 
         try:
-            with open(temp_file.name, "wb") as otadata_next_file:
+            with open(temp_file.name, 'wb') as otadata_next_file:
                 start = (1 if otadata_compute_base == 0 else 0) * (self.spi_flash_sec_size >> 1)
 
                 otadata_next_file.write(self.otadata)
@@ -224,7 +211,7 @@ def _read_otadata(target):
 
 def _erase_otadata(target):
     target.erase_otadata()
-    status("Erased ota_data partition contents")
+    status('Erased ota_data partition contents')
 
 
 def _switch_ota_partition(target, ota_id):
@@ -233,68 +220,64 @@ def _switch_ota_partition(target, ota_id):
 
 def _read_ota_partition(target, ota_id, output):
     target.read_ota_partition(ota_id, output)
-    status("Read ota partition contents to file {}".format(output))
+    status('Read ota partition contents to file {}'.format(output))
 
 
 def _write_ota_partition(target, ota_id, input):
     target.write_ota_partition(ota_id, input)
-    status("Written contents of file {} to ota partition".format(input))
+    status('Written contents of file {} to ota partition'.format(input))
 
 
 def _erase_ota_partition(target, ota_id):
     target.erase_ota_partition(ota_id)
-    status("Erased contents of ota partition")
+    status('Erased contents of ota partition')
 
 
 def main():
-    if sys.version_info[0] < 3:
-        print("WARNING: Support for Python 2 is deprecated and will be removed in future versions.", file=sys.stderr)
-    elif sys.version_info[0] == 3 and sys.version_info[1] < 6:
-        print("WARNING: Python 3 versions older than 3.6 are not supported.", file=sys.stderr)
     global quiet
 
-    parser = argparse.ArgumentParser("ESP-IDF OTA Partitions Tool")
+    parser = argparse.ArgumentParser('ESP-IDF OTA Partitions Tool')
 
-    parser.add_argument("--quiet", "-q", help="suppress stderr messages", action="store_true")
-    parser.add_argument("--esptool-args", help="additional main arguments for esptool", nargs="+")
-    parser.add_argument("--esptool-write-args", help="additional subcommand arguments for esptool write_flash", nargs="+")
-    parser.add_argument("--esptool-read-args", help="additional subcommand arguments for esptool read_flash", nargs="+")
-    parser.add_argument("--esptool-erase-args", help="additional subcommand arguments for esptool erase_region", nargs="+")
+    parser.add_argument('--quiet', '-q', help='suppress stderr messages', action='store_true')
+    parser.add_argument('--esptool-args', help='additional main arguments for esptool', nargs='+')
+    parser.add_argument('--esptool-write-args', help='additional subcommand arguments for esptool write_flash', nargs='+')
+    parser.add_argument('--esptool-read-args', help='additional subcommand arguments for esptool read_flash', nargs='+')
+    parser.add_argument('--esptool-erase-args', help='additional subcommand arguments for esptool erase_region', nargs='+')
 
     # There are two possible sources for the partition table: a device attached to the host
     # or a partition table CSV/binary file. These sources are mutually exclusive.
-    parser.add_argument("--port", "-p", help="port where the device to read the partition table from is attached")
+    parser.add_argument('--port', '-p', help='port where the device to read the partition table from is attached')
 
-    parser.add_argument("--baud", "-b", help="baudrate to use", type=int)
+    parser.add_argument('--baud', '-b', help='baudrate to use', type=int)
 
-    parser.add_argument("--partition-table-offset", "-o", help="offset to read the partition table from",  type=str)
+    parser.add_argument('--partition-table-offset', '-o', help='offset to read the partition table from',  type=str)
 
-    parser.add_argument("--partition-table-file", "-f", help="file (CSV/binary) to read the partition table from; \
-                                                            overrides device attached to specified port as the partition table source when defined")
+    parser.add_argument('--partition-table-file', '-f', help='file (CSV/binary) to read the partition table from; \
+                                                            overrides device attached to specified port as the partition table source when defined')
 
-    subparsers = parser.add_subparsers(dest="operation", help="run otatool -h for additional help")
+    subparsers = parser.add_subparsers(dest='operation', help='run otatool -h for additional help')
 
     spi_flash_sec_size = argparse.ArgumentParser(add_help=False)
-    spi_flash_sec_size.add_argument("--spi-flash-sec-size", help="value of SPI_FLASH_SEC_SIZE macro", type=str)
+    spi_flash_sec_size.add_argument('--spi-flash-sec-size', help='value of SPI_FLASH_SEC_SIZE macro', type=str)
 
     # Specify the supported operations
-    subparsers.add_parser("read_otadata", help="read otadata partition", parents=[spi_flash_sec_size])
-    subparsers.add_parser("erase_otadata", help="erase otadata partition")
+    subparsers.add_parser('read_otadata', help='read otadata partition', parents=[spi_flash_sec_size])
+    subparsers.add_parser('erase_otadata', help='erase otadata partition')
 
     slot_or_name_parser = argparse.ArgumentParser(add_help=False)
     slot_or_name_parser_args = slot_or_name_parser.add_mutually_exclusive_group()
-    slot_or_name_parser_args.add_argument("--slot", help="slot number of the ota partition", type=int)
-    slot_or_name_parser_args.add_argument("--name", help="name of the ota partition")
+    slot_or_name_parser_args.add_argument('--slot', help='slot number of the ota partition', type=int)
+    slot_or_name_parser_args.add_argument('--name', help='name of the ota partition')
 
-    subparsers.add_parser("switch_ota_partition", help="switch otadata partition", parents=[slot_or_name_parser, spi_flash_sec_size])
+    subparsers.add_parser('switch_ota_partition', help='switch otadata partition', parents=[slot_or_name_parser, spi_flash_sec_size])
 
-    read_ota_partition_subparser = subparsers.add_parser("read_ota_partition", help="read contents of an ota partition", parents=[slot_or_name_parser])
-    read_ota_partition_subparser.add_argument("--output", help="file to write the contents of the ota partition to")
+    read_ota_partition_subparser = subparsers.add_parser('read_ota_partition', help='read contents of an ota partition', parents=[slot_or_name_parser])
+    read_ota_partition_subparser.add_argument('--output', help='file to write the contents of the ota partition to', required=True)
 
-    write_ota_partition_subparser = subparsers.add_parser("write_ota_partition", help="write contents to an ota partition", parents=[slot_or_name_parser])
-    write_ota_partition_subparser.add_argument("--input", help="file whose contents to write to the ota partition")
+    write_ota_partition_subparser = subparsers.add_parser('write_ota_partition', help='write contents to an ota partition', parents=[slot_or_name_parser])
+    write_ota_partition_subparser.add_argument('--input', help='file whose contents to write to the ota partition')
 
-    subparsers.add_parser("erase_ota_partition", help="erase contents of an ota partition", parents=[slot_or_name_parser])
+    subparsers.add_parser('erase_ota_partition', help='erase contents of an ota partition', parents=[slot_or_name_parser])
 
     args = parser.parse_args()
 
@@ -309,34 +292,34 @@ def main():
     target_args = {}
 
     if args.port:
-        target_args["port"] = args.port
+        target_args['port'] = args.port
 
     if args.partition_table_file:
-        target_args["partition_table_file"] = args.partition_table_file
+        target_args['partition_table_file'] = args.partition_table_file
 
     if args.partition_table_offset:
-        target_args["partition_table_offset"] = int(args.partition_table_offset, 0)
+        target_args['partition_table_offset'] = int(args.partition_table_offset, 0)
 
     try:
         if args.spi_flash_sec_size:
-            target_args["spi_flash_sec_size"] = int(args.spi_flash_sec_size, 0)
+            target_args['spi_flash_sec_size'] = int(args.spi_flash_sec_size, 0)
     except AttributeError:
         pass
 
     if args.esptool_args:
-        target_args["esptool_args"] = args.esptool_args
+        target_args['esptool_args'] = args.esptool_args
 
     if args.esptool_write_args:
-        target_args["esptool_write_args"] = args.esptool_write_args
+        target_args['esptool_write_args'] = args.esptool_write_args
 
     if args.esptool_read_args:
-        target_args["esptool_read_args"] = args.esptool_read_args
+        target_args['esptool_read_args'] = args.esptool_read_args
 
     if args.esptool_erase_args:
-        target_args["esptool_erase_args"] = args.esptool_erase_args
+        target_args['esptool_erase_args'] = args.esptool_erase_args
 
     if args.baud:
-        target_args["baud"] = args.baud
+        target_args['baud'] = args.baud
 
     target = OtatoolTarget(**target_args)
 
@@ -347,10 +330,10 @@ def main():
 
     try:
         if args.name is not None:
-            ota_id = ["name"]
+            ota_id = ['name']
         else:
             if args.slot is not None:
-                ota_id = ["slot"]
+                ota_id = ['slot']
     except AttributeError:
         pass
 
@@ -358,8 +341,8 @@ def main():
         'read_otadata':(_read_otadata, []),
         'erase_otadata':(_erase_otadata, []),
         'switch_ota_partition':(_switch_ota_partition, ota_id),
-        'read_ota_partition':(_read_ota_partition, ["output"] + ota_id),
-        'write_ota_partition':(_write_ota_partition, ["input"] + ota_id),
+        'read_ota_partition':(_read_ota_partition, ['output'] + ota_id),
+        'write_ota_partition':(_write_ota_partition, ['input'] + ota_id),
         'erase_ota_partition':(_erase_ota_partition, ota_id)
     }
 

components/app_update/test/CMakeLists.txt

@@ -1,4 +1,4 @@
 idf_component_register(SRC_DIRS "."
-                       INCLUDE_DIRS "."
-                       REQUIRES unity test_utils app_update bootloader_support nvs_flash
-                      )
+                       PRIV_INCLUDE_DIRS "."
+                       PRIV_REQUIRES cmock test_utils app_update bootloader_support nvs_flash
+                      )

components/app_update/test/test_app_desc.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <string.h>
 #include "esp_ota_ops.h"
 #include "unity.h"

components/app_update/test/test_ota_ops.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -84,7 +89,7 @@ TEST_CASE("esp_ota_get_next_update_partition logic", "[ota]")
     TEST_ASSERT_EQUAL_PTR(ota_0, p);
 }
 
-TEST_CASE("esp_ota_get_partition_description ", "[ota]")
+TEST_CASE("esp_ota_get_partition_description", "[ota]")
 {
     const esp_partition_t *running = esp_ota_get_running_partition();
     TEST_ASSERT_NOT_NULL(running);

components/app_update/test/test_switch_ota.c

@@ -1,3 +1,8 @@
+/*
+ * SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 /*
  * Tests for switching between partitions: factory, OTAx, test.
  */
@@ -9,21 +14,18 @@
 
 #if CONFIG_IDF_TARGET_ESP32
 #include "esp32/rom/spi_flash.h"
-#include "esp32/rom/rtc.h"
-#elif CONFIG_IDF_TARGET_ESP32S2BETA
-#include "esp32s2beta/rom/spi_flash.h"
-#include "esp32s2beta/rom/rtc.h"
+#elif CONFIG_IDF_TARGET_ESP32S2
+#include "esp32s2/rom/spi_flash.h"
 #endif
 
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 #include "freertos/semphr.h"
 #include "freertos/queue.h"
-#include "freertos/xtensa_api.h"
 #include "unity.h"
 
 #include "bootloader_common.h"
-#include "../include_bootloader/bootloader_flash.h"
+#include "../include_bootloader/bootloader_flash_priv.h"
 
 #include "esp_log.h"
 #include "esp_ota_ops.h"
@@ -48,9 +50,34 @@ static void copy_app_partition(esp_ota_handle_t update_handle, const esp_partiti
 {
     const void *partition_bin = NULL;
     spi_flash_mmap_handle_t  data_map;
+    ESP_LOGI(TAG, "start the copy process");
     TEST_ESP_OK(esp_partition_mmap(curr_app, 0, curr_app->size, SPI_FLASH_MMAP_DATA, &partition_bin, &data_map));
     TEST_ESP_OK(esp_ota_write(update_handle, (const void *)partition_bin, curr_app->size));
     spi_flash_munmap(data_map);
+    ESP_LOGI(TAG, "finish the copy process");
+}
+
+/* @brief Copies a current app to next partition using handle.
+ *
+ * @param[in] update_handle - Handle of API ota.
+ * @param[in] cur_app - Current app.
+ */
+static void copy_app_partition_with_offset(esp_ota_handle_t update_handle, const esp_partition_t *curr_app)
+{
+    const void *partition_bin = NULL;
+    spi_flash_mmap_handle_t  data_map;
+    ESP_LOGI(TAG, "start the copy process");
+    uint32_t offset = 0, bytes_to_write = curr_app->size;
+    uint32_t write_bytes;
+    while (bytes_to_write > 0) {
+        write_bytes = (bytes_to_write > (4 * 1024)) ? (4 * 1024) : bytes_to_write;
+        TEST_ESP_OK(esp_partition_mmap(curr_app, offset, write_bytes, SPI_FLASH_MMAP_DATA, &partition_bin, &data_map));
+        TEST_ESP_OK(esp_ota_write_with_offset(update_handle, (const void *)partition_bin, write_bytes, offset));
+        spi_flash_munmap(data_map);
+        bytes_to_write -= write_bytes;
+        offset += write_bytes;
+    }
+    ESP_LOGI(TAG, "finish the copy process");
 }
 
 #if defined(CONFIG_BOOTLOADER_FACTORY_RESET) || defined(CONFIG_BOOTLOADER_APP_TEST)
@@ -103,6 +130,26 @@ static void copy_current_app_to_next_part(const esp_partition_t *cur_app_partiti
     TEST_ESP_OK(esp_ota_set_boot_partition(next_app_partition));
 }
 
+/* @brief Copies a current app to next partition (OTA0-15) and then configure OTA data for a new boot partition.
+ *
+ * @param[in] cur_app_partition - Current app.
+ * @param[in] next_app_partition - Next app for boot.
+ */
+static void copy_current_app_to_next_part_with_offset(const esp_partition_t *cur_app_partition, const esp_partition_t *next_app_partition)
+{
+    esp_ota_get_next_update_partition(NULL);
+    TEST_ASSERT_NOT_EQUAL(NULL, next_app_partition);
+    ESP_LOGI(TAG, "Writing to partition subtype %d at offset 0x%x", next_app_partition->subtype, next_app_partition->address);
+
+    esp_ota_handle_t update_handle = 0;
+    TEST_ESP_OK(esp_ota_begin(next_app_partition, OTA_SIZE_UNKNOWN, &update_handle));
+
+    copy_app_partition_with_offset(update_handle, cur_app_partition);
+
+    TEST_ESP_OK(esp_ota_end(update_handle));
+    TEST_ESP_OK(esp_ota_set_boot_partition(next_app_partition));
+}
+
 /* @brief Erase otadata partition
  */
 static void erase_ota_data(void)
@@ -116,6 +163,7 @@ static void erase_ota_data(void)
  */
 static void reboot_as_deep_sleep(void)
 {
+    ESP_LOGI(TAG, "reboot as deep sleep");
     esp_sleep_enable_timer_wakeup(2000);
     esp_deep_sleep_start();
 }
@@ -125,10 +173,21 @@ static void reboot_as_deep_sleep(void)
 static void copy_current_app_to_next_part_and_reboot(void)
 {
     const esp_partition_t *cur_app = esp_ota_get_running_partition();
+    ESP_LOGI(TAG, "copy current app to next part");
     copy_current_app_to_next_part(cur_app, get_next_update_partition());
     reboot_as_deep_sleep();
 }
 
+/* @brief Copies a current app to next partition (OTA0-15) using esp_ota_write_with_offest(), after that ESP is rebooting and run this (the next) OTAx.
+ */
+static void copy_current_app_to_next_part_with_offset_and_reboot(void)
+{
+    const esp_partition_t *cur_app = esp_ota_get_running_partition();
+    ESP_LOGI(TAG, "copy current app to next part");
+    copy_current_app_to_next_part_with_offset(cur_app, get_next_update_partition());
+    reboot_as_deep_sleep();
+}
+
 /* @brief Get running app.
  *
  * @return The next partition of OTA(OTA0-15).
@@ -222,7 +281,7 @@ static void set_output_pin(uint32_t num_pin)
     TEST_ESP_OK(gpio_hold_dis(num_pin));
 
     gpio_config_t io_conf;
-    io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
+    io_conf.intr_type = GPIO_INTR_DISABLE;
     io_conf.mode = GPIO_MODE_OUTPUT;
     io_conf.pin_bit_mask = (1ULL << num_pin);
     io_conf.pull_down_en = 0;
@@ -256,6 +315,7 @@ static void start_test(void)
     ESP_LOGI(TAG, "boot count 1 - reset");
     boot_count = 1;
     erase_ota_data();
+    ESP_LOGI(TAG, "ota_data erased");
     reboot_as_deep_sleep();
 }
 
@@ -392,7 +452,7 @@ static void test_flow4(void)
     ESP_LOGI(TAG, "boot count %d", boot_count);
     const esp_partition_t *cur_app = get_running_firmware();
     nvs_handle_t handle = 0;
-    int boot_count_nvs = 0;
+    int32_t boot_count_nvs = 0;
     switch (boot_count) {
         case 2:
             ESP_LOGI(TAG, "Factory");
@@ -428,7 +488,7 @@ static void test_flow4(void)
             ESP_LOGI(TAG, "Factory");
             TEST_ASSERT_EQUAL(ESP_PARTITION_SUBTYPE_APP_FACTORY, cur_app->subtype);
 
-            int boot_count_nvs;
+            int32_t boot_count_nvs;
             TEST_ESP_OK(nvs_flash_init());
             TEST_ESP_OK(nvs_open(STORAGE_NAMESPACE, NVS_READWRITE, &handle));
             TEST_ESP_ERR(ESP_ERR_NVS_NOT_FOUND, nvs_get_i32(handle, "boot_count", &boot_count_nvs));
@@ -735,3 +795,32 @@ static void test_erase_last_app_rollback(void)
 // 4 Stage: run OTA1           -> check it -> erase OTA0 and rollback                          -> reboot
 // 5 Stage: run factory        -> check it -> erase OTA_DATA for next tests                    -> PASS
 TEST_CASE_MULTIPLE_STAGES("Test erase_last_boot_app_partition. factory, OTA1, OTA0, factory", "[app_update][timeout=90][reset=DEEPSLEEP_RESET, DEEPSLEEP_RESET, DEEPSLEEP_RESET, SW_CPU_RESET]", start_test, test_erase_last_app_flow, test_erase_last_app_flow, test_erase_last_app_flow, test_erase_last_app_rollback);
+
+static void test_flow6(void)
+{
+    boot_count++;
+    ESP_LOGI(TAG, "boot count %d", boot_count);
+    const esp_partition_t *cur_app = get_running_firmware();
+    switch (boot_count) {
+        case 2:
+            ESP_LOGI(TAG, "Factory");
+            TEST_ASSERT_EQUAL(ESP_PARTITION_SUBTYPE_APP_FACTORY, cur_app->subtype);
+            copy_current_app_to_next_part_with_offset_and_reboot();
+            break;
+        case 3:
+            ESP_LOGI(TAG, "OTA0");
+            TEST_ASSERT_EQUAL(ESP_PARTITION_SUBTYPE_APP_OTA_0, cur_app->subtype);
+            mark_app_valid();
+            erase_ota_data();
+            break;
+        default:
+            erase_ota_data();
+            TEST_FAIL_MESSAGE("Unexpected stage");
+            break;
+    }
+}
+
+// 1 Stage: After POWER_RESET erase OTA_DATA for this test              -> reboot through deep sleep.
+// 2 Stage: run factory -> check it -> copy factory to OTA0             -> reboot  --//--
+// 3 Stage: run OTA0    -> check it -> erase OTA_DATA for next tests    -> PASS
+TEST_CASE_MULTIPLE_STAGES("Switching between factory, OTA0 using esp_ota_write_with_offset", "[app_update][timeout=90][reset=DEEPSLEEP_RESET, DEEPSLEEP_RESET]", start_test, test_flow6, test_flow6);

components/asio/CMakeLists.txt

@@ -1,3 +1,41 @@
-idf_component_register(SRCS "asio/asio/src/asio.cpp"
+if(NOT CONFIG_LWIP_IPV6 AND NOT CMAKE_BUILD_EARLY_EXPANSION)
+    # note: the component is still included in the build so it can become visible again in config
+    # without needing to re-run CMake. However no source or header files are built.
+    message(STATUS "IPV6 support is disabled so the asio component will not be built")
+    idf_component_register()
+    return()
+endif()
+
+set(asio_sources "asio/asio/src/asio.cpp")
+
+if(CONFIG_ASIO_SSL_SUPPORT)
+    if(CONFIG_ASIO_USE_ESP_OPENSSL)
+        list(APPEND asio_sources
+                "asio/asio/src/asio_ssl.cpp"
+                "port/src/esp_asio_openssl_stubs.c")
+    endif()
+
+    if(CONFIG_ASIO_USE_ESP_WOLFSSL)
+        list(APPEND asio_sources
+                "asio/asio/src/asio_ssl.cpp")
+    endif()
+endif()
+
+idf_component_register(SRCS ${asio_sources}
                     INCLUDE_DIRS "asio/asio/include" "port/include"
                     REQUIRES lwip)
+
+if(CONFIG_ASIO_SSL_SUPPORT)
+    if(CONFIG_ASIO_USE_ESP_WOLFSSL)
+        idf_component_get_property(wolflib esp-wolfssl COMPONENT_LIB)
+        idf_component_get_property(wolfdir esp-wolfssl COMPONENT_DIR)
+
+        target_link_libraries(${COMPONENT_LIB} PUBLIC ${wolflib})
+        target_include_directories(${COMPONENT_LIB} PUBLIC ${wolfdir}/wolfssl/wolfssl)
+    endif()
+
+    if(CONFIG_ASIO_USE_ESP_OPENSSL)
+        idf_component_get_property(esp_openssl openssl COMPONENT_LIB)
+        target_link_libraries(${COMPONENT_LIB} PUBLIC ${esp_openssl})
+    endif()
+endif()

components/asio/Kconfig

@@ -0,0 +1,27 @@
+menu "ESP-ASIO"
+    visible if LWIP_IPV6
+
+    config ASIO_SSL_SUPPORT
+        bool "Enable SSL/TLS support of ASIO"
+        default n
+        help
+            Enable support for basic SSL/TLS features, available for mbedTLS/OpenSSL
+            as well as wolfSSL TLS library.
+
+    choice ASIO_SSL_LIBRARY_CHOICE
+        prompt "Choose SSL/TLS library for ESP-TLS (See help for more Info)"
+        default ASIO_USE_ESP_OPENSSL
+        depends on ASIO_SSL_SUPPORT
+        help
+            The ASIO support multiple backend TLS libraries. Currently the mbedTLS with a thin ESP-OpenSSL
+            port layer (default choice) and WolfSSL are supported.
+            Different TLS libraries may support different features and have different resource
+            usage. Consult the ESP-TLS documentation in ESP-IDF Programming guide for more details.
+        config ASIO_USE_ESP_OPENSSL
+            bool "esp-openssl"
+        config ASIO_USE_ESP_WOLFSSL
+            depends on TLS_STACK_WOLFSSL
+            bool "wolfSSL (License info in wolfSSL directory README)"
+    endchoice
+
+endmenu

components/asio/component.mk

@@ -1,6 +1,13 @@
+ifdef CONFIG_LWIP_IPV6
+
 COMPONENT_ADD_INCLUDEDIRS := asio/asio/include port/include
 COMPONENT_PRIV_INCLUDEDIRS := private_include
-COMPONENT_SRCDIRS := asio/asio/src
-COMPONENT_OBJEXCLUDE := asio/asio/src/asio_ssl.o
+COMPONENT_SRCDIRS := asio/asio/src port/src
+
+ifeq ($(CONFIG_ASIO_SSL_SUPPORT), )
+COMPONENT_OBJEXCLUDE := asio/asio/src/asio_ssl.o port/src/esp_asio_openssl_stubs.o
+endif
 
 COMPONENT_SUBMODULES += asio
+
+endif # CONFIG_LWIP_IPV6

components/asio/port/include/esp_asio_config.h

@@ -1,16 +1,8 @@
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #ifndef _ESP_ASIO_CONFIG_H_
 #define _ESP_ASIO_CONFIG_H_
 
@@ -26,6 +18,11 @@
 #  define ASIO_NO_TYPEID
 # endif   // CONFIG_COMPILER_RTTI
 
+//
+// Supress OpenSSL deprecation warning, when building ASIO
+//
+#define ESP_OPENSSL_SUPPRESS_LEGACY_WARNING
+
 //
 // LWIP compatibility inet and address macros/functions
 //
@@ -40,4 +37,11 @@
 # define ASIO_STANDALONE
 # define ASIO_HAS_PTHREADS
 
+# ifdef CONFIG_ASIO_USE_ESP_OPENSSL
+#  define ASIO_USE_ESP_OPENSSL
+#  define OPENSSL_NO_ENGINE
+# elif CONFIG_ASIO_USE_ESP_WOLFSSL
+#  define ASIO_USE_WOLFSSL
+# endif   // CONFIG_ASIO_USE_ESP_OPENSSL
+
 #endif // _ESP_ASIO_CONFIG_H_

components/asio/port/include/esp_exception.h

@@ -1,17 +1,9 @@
 
-// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+/*
+ * SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
 #ifndef _ESP_EXCEPTION_H_
 #define _ESP_EXCEPTION_H_
 
@@ -30,7 +22,7 @@ namespace detail {
 template <typename Exception>
 void throw_exception(const Exception& e)
 {
-  ESP_LOGE("esp32_asio_exception", "Caught exception: %s!", e.what());   
+  ESP_LOGE("esp32_asio_exception", "Caught exception: %s!", e.what());
   abort();
 }
 }}

components/asio/port/include/openssl/conf.h

@@ -0,0 +1,18 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef _ESP_ASIO_OPENSSL_CONF_H
+#define _ESP_ASIO_OPENSSL_CONF_H
+#include "esp_asio_config.h"
+#include "openssl/esp_asio_openssl_stubs.h"
+
+#if defined(ASIO_USE_WOLFSSL)
+// SSLv3 Methods not present in current wolfSSL library
+#define OPENSSL_NO_SSL3
+#include_next "openssl/conf.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_CONF_H

components/asio/port/include/openssl/dh.h

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef _ESP_ASIO_OPENSSL_DH_STUB_H
+#define _ESP_ASIO_OPENSSL_DH_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/dh.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_DH_STUB_H

components/asio/port/include/openssl/esp_asio_openssl_stubs.h

@@ -0,0 +1,201 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef _ESP_ASIO_OPENSSL_STUBS_H
+#define _ESP_ASIO_OPENSSL_STUBS_H
+
+/**
+ * @note This header contains openssl API which are NOT implemented, and are only provided
+ * as stubs or no-operations to get the ASIO library compiled and working with most
+ * practical use cases as an embedded application on ESP platform
+ */
+
+#if defined(ASIO_USE_WOLFSSL)
+
+#include "wolfssl/ssl.h"
+// esp-wolfssl disables filesystem by default, but the ssl filesystem functions are needed for the ASIO to compile
+//  - so we could either configure wolfSSL to use filesystem
+//  - or use the default wolfSSL and declare the filesystem functions -- preferred option, as whenever
+//    the filesystem functions are used from app code (potential security impact if private keys in a filesystem)
+//    compilation fails with linking errors.
+
+#if defined(NO_FILESYSTEM)
+// WolfSSL methods that are not included in standard esp-wolfssl config, must be defined here
+// as function stubs,  so ASIO compiles, but would get link errors, if these functions were used.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct WOLFSSL_CTX      WOLFSSL_CTX;
+
+void wolfSSL_CTX_set_verify_depth(WOLFSSL_CTX *ctx,int depth);
+int SSL_CTX_load_verify_locations(WOLFSSL_CTX*, const char*, const char*);
+int SSL_CTX_use_certificate_file(WOLFSSL_CTX*, const char*, int);
+int SSL_CTX_use_certificate_chain_file(WOLFSSL_CTX*, const char*);
+int SSL_CTX_use_PrivateKey_file(WOLFSSL_CTX*, const char*, int);
+int SSL_CTX_use_RSAPrivateKey_file(WOLFSSL_CTX*, const char*, int);
+
+#if defined(__cplusplus)
+} /* extern C */
+#endif
+
+#endif // NO_FILESYSTEM
+
+#elif defined(ASIO_USE_ESP_OPENSSL)
+
+#include "internal/ssl_x509.h"
+#include "internal/ssl_pkey.h"
+#include "mbedtls/pem.h"
+#include <stdint.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+// The most applicable OpenSSL version wrtt ASIO usage
+#define OPENSSL_VERSION_NUMBER 0x10100001L
+// SSLv2 methods not supported
+// OpenSSL port supports: TLS_ANY, TLS_1, TLS_1_1, TLS_1_2, SSL_3
+#define OPENSSL_NO_SSL2
+#define SSL2_VERSION 0x0002
+
+#define SSL_R_SHORT_READ 219
+#define SSL_OP_ALL 0
+#define SSL_OP_SINGLE_DH_USE 0
+#define SSL_OP_NO_COMPRESSION 0
+// Translates mbedTLS PEM parse error, used by ASIO
+#define PEM_R_NO_START_LINE -MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT
+
+#define SSL_OP_NO_SSLv2					0x01000000L
+#define SSL_OP_NO_SSLv3					0x02000000L
+#define SSL_OP_NO_TLSv1					0x04000000L
+
+#define X509_FILETYPE_PEM	1
+#define X509_FILETYPE_ASN1	2
+#define SSL_FILETYPE_ASN1	X509_FILETYPE_ASN1
+#define SSL_FILETYPE_PEM	X509_FILETYPE_PEM
+
+#define NID_subject_alt_name 85
+
+
+#define GEN_DNS		2
+#define GEN_IPADD	7
+#define V_ASN1_OCTET_STRING		4
+#define V_ASN1_IA5STRING		22
+#define NID_commonName 13
+
+#define SSL_CTX_get_app_data(ctx) ((void*)SSL_CTX_get_ex_data(ctx, 0))
+
+/**
+* @brief Frees DH object -- not implemented
+*
+* Current implementation calls SSL_ASSERT
+*
+* @param r DH object
+*/
+void DH_free(DH *r);
+
+/**
+ * @brief Frees GENERAL_NAMES -- not implemented
+ *
+ * Current implementation calls SSL_ASSERT
+ *
+ * @param r GENERAL_NAMES object
+ */
+void GENERAL_NAMES_free(GENERAL_NAMES * gens);
+
+/**
+ * @brief Returns subject name from X509 -- not implemented
+ *
+ * Current implementation calls SSL_ASSERT
+ *
+ * @param r X509 object
+ */
+X509_NAME *X509_get_subject_name(X509 *a);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+int	X509_STORE_CTX_get_error_depth(X509_STORE_CTX *ctx);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+int X509_NAME_get_index_by_NID(X509_NAME *name, int nid, int lastpos);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+X509_NAME_ENTRY *X509_NAME_get_entry(X509_NAME *name, int loc);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+ASN1_STRING *X509_NAME_ENTRY_get_data(X509_NAME_ENTRY *ne);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+void *X509_get_ext_d2i(X509 *x, int nid, int *crit, int *idx);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+X509 *	X509_STORE_CTX_get_current_cert(X509_STORE_CTX *ctx);
+
+/**
+ * @brief Reads DH params from a bio object -- not implemented
+ *
+ * Current implementation calls SSL_ASSERT
+ */
+DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+void *	X509_STORE_CTX_get_ex_data(X509_STORE_CTX *ctx,int idx);
+
+/**
+ * @brief Sets DH params to ssl ctx -- not implemented
+ *
+ * Current implementation calls SSL_ASSERT
+ */
+int SSL_CTX_set_tmp_dh(SSL_CTX *ctx, const DH *dh);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *data);
+
+/**
+ * @brief API provaded as declaration only
+ *
+ */
+void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb);
+
+/**
+ * @brief Clears any existing chain associated with the current certificate of ctx.
+ *
+ */
+int SSL_CTX_clear_chain_certs(SSL_CTX *ctx);
+
+#if defined(__cplusplus)
+} /* extern C */
+#endif
+
+#endif /* ASIO_USE_ESP_OPENSSL, ASIO_USE_WOLFSSL */
+#endif /* _ESP_ASIO_OPENSSL_STUBS_H */

components/asio/port/include/openssl/rsa.h

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef _ESP_ASIO_OPENSSL_RSA_STUB_H
+#define _ESP_ASIO_OPENSSL_RSA_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/rsa.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_RSA_STUB_H

components/asio/port/include/openssl/x509v3.h

@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef _ESP_ASIO_OPENSSL_X509V3_STUB_H
+#define _ESP_ASIO_OPENSSL_X509V3_STUB_H
+// Dummy header needed for ASIO compilation with esp-openssl
+
+#if defined(ASIO_USE_WOLFSSL)
+#include_next "openssl/x509v3.h"
+#endif // ASIO_USE_WOLFSSL
+
+#endif // _ESP_ASIO_OPENSSL_X509V3_STUB_H

components/asio/port/src/esp_asio_openssl_stubs.c

@@ -0,0 +1,47 @@
+/*
+ * SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+//
+
+#include "esp_asio_config.h"
+#include "internal/ssl_dbg.h"
+#include "openssl/esp_asio_openssl_stubs.h"
+
+// Unsupported features as macros to make the assertions more readable
+#define ESP_OPENSSL_DH_IS_SUPPORTED 0
+#define ESP_OPENSSL_GENERAL_NAMES_IS_SUPPORTED 0
+
+void DH_free (DH *r)
+{
+    SSL_ASSERT3(ESP_OPENSSL_DH_IS_SUPPORTED);
+}
+
+DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
+{
+    SSL_ASSERT2(ESP_OPENSSL_DH_IS_SUPPORTED);
+    return NULL;
+}
+
+int SSL_CTX_set_tmp_dh(SSL_CTX *ctx, const DH *dh)
+{
+    SSL_ASSERT1(ESP_OPENSSL_DH_IS_SUPPORTED);
+    return -1;
+}
+
+void GENERAL_NAMES_free(GENERAL_NAMES * gens)
+{
+    SSL_ASSERT3(ESP_OPENSSL_GENERAL_NAMES_IS_SUPPORTED);
+}
+
+X509_NAME *X509_get_subject_name(X509 *a)
+{
+    SSL_ASSERT2(ESP_OPENSSL_GENERAL_NAMES_IS_SUPPORTED);
+    return NULL;
+}
+
+int SSL_CTX_clear_chain_certs(SSL_CTX *ctx)
+{
+    return 1;
+}

components/bootloader/CMakeLists.txt

@@ -1,21 +1,25 @@
-idf_component_register(PRIV_REQUIRES partition_table)
+idf_component_register(PRIV_REQUIRES partition_table esptool_py)
 
 # Do not generate flash file when building bootloader or is in early expansion of the build
 if(BOOTLOADER_BUILD OR NOT CONFIG_APP_BUILD_BOOTLOADER)
     return()
 endif()
 
+add_dependencies(bootloader partition_table_bin)
+
 # When secure boot is enabled, do not flash bootloader along with invocation of `idf.py flash`
 if(NOT CONFIG_SECURE_BOOT)
     set(flash_bootloader FLASH_IN_PROJECT)
 endif()
 
-# Set values used in flash_bootloader_args.in and generate flash file
-# for bootloader
-esptool_py_flash_project_args(bootloader 0x1000
-                            ${BOOTLOADER_BUILD_DIR}/bootloader.bin
-                            ${flash_bootloader}
-                            FLASH_FILE_TEMPLATE flash_bootloader_args.in)
-
 esptool_py_custom_target(bootloader-flash bootloader "bootloader")
-add_dependencies(bootloader partition_table)
+esptool_py_flash_target_image(bootloader-flash bootloader
+    ${CONFIG_BOOTLOADER_OFFSET_IN_FLASH}
+    "${BOOTLOADER_BUILD_DIR}/bootloader.bin")
+
+# Also attach an image to the project flash target
+if(NOT CONFIG_SECURE_BOOT)
+    esptool_py_flash_target_image(flash bootloader
+        ${CONFIG_BOOTLOADER_OFFSET_IN_FLASH}
+        "${BOOTLOADER_BUILD_DIR}/bootloader.bin")
+endif()

components/bootloader/Kconfig.projbuild

@@ -1,5 +1,14 @@
 menu "Bootloader config"
 
+    config BOOTLOADER_OFFSET_IN_FLASH
+        hex
+        default 0x1000 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2
+        default 0x0
+        help
+            Offset address that 2nd bootloader will be flashed to.
+            The value is determined by the ROM bootloader.
+            It's not configurable in ESP-IDF.
+
     choice BOOTLOADER_COMPILER_OPTIMIZATION
         prompt "Bootloader optimization Level"
         default BOOTLOADER_COMPILER_OPTIMIZATION_SIZE
@@ -108,18 +117,33 @@ menu "Bootloader config"
             Allows to reset the device to factory settings:
             - clear one or more data partitions;
             - boot from "factory" partition.
-            The factory reset will occur if there is a GPIO input pulled low while device starts up.
-            See settings below.
+            The factory reset will occur if there is a GPIO input held at the configured level while
+            device starts up. See settings below.
 
     config BOOTLOADER_NUM_PIN_FACTORY_RESET
         int "Number of the GPIO input for factory reset"
         depends on BOOTLOADER_FACTORY_RESET
-        range 0 39
+        range 0 39 if IDF_TARGET_ESP32
+        range 0 44 if IDF_TARGET_ESP32S2
         default 4
         help
-            The selected GPIO will be configured as an input with internal pull-up enabled.
-            To trigger a factory reset, this GPIO must be pulled low on reset.
-            Note that GPIO34-39 do not have an internal pullup and an external one must be provided.
+            The selected GPIO will be configured as an input with internal pull-up enabled (note that on some SoCs.
+            not all pins have an internal pull-up, consult the hardware datasheet for details.) To trigger a factory
+            reset, this GPIO must be held high or low (as configured) on startup.
+
+    choice BOOTLOADER_FACTORY_RESET_PIN_LEVEL
+        bool "Factory reset GPIO level"
+        depends on BOOTLOADER_FACTORY_RESET
+        default BOOTLOADER_FACTORY_RESET_PIN_LOW
+        help
+            Pin level for factory reset, can be triggered on low or high.
+
+        config BOOTLOADER_FACTORY_RESET_PIN_LOW
+            bool "Reset on GPIO low"
+
+        config BOOTLOADER_FACTORY_RESET_PIN_HIGH
+            bool "Reset on GPIO high"
+    endchoice
 
     config BOOTLOADER_OTA_DATA_ERASE
         bool "Clear OTA data on factory reset (select factory partition)"
@@ -143,6 +167,7 @@ menu "Bootloader config"
     config BOOTLOADER_APP_TEST
         bool "GPIO triggers boot from test app partition"
         default N
+        depends on !BOOTLOADER_APP_ANTI_ROLLBACK
         help
             Allows to run the test app from "TEST" partition.
             A boot from "test" partition will occur if there is a GPIO input pulled low while device starts up.
@@ -186,8 +211,11 @@ menu "Bootloader config"
         depends on BOOTLOADER_WDT_ENABLE
         default n
         help
-            If it is set, the client must itself reset or disable rtc_wdt in their code (app_main()).
-            Otherwise rtc_wdt will be disabled before calling app_main function.
+            If this option is set, the ESP-IDF app must explicitly reset, feed, or disable the rtc_wdt in
+            the app's own code.
+            If this option is not set (default), then rtc_wdt will be disabled by ESP-IDF before calling
+            the app_main() function.
+
             Use function rtc_wdt_feed() for resetting counter of rtc_wdt.
             Use function rtc_wdt_disable() for disabling rtc_wdt.
 
@@ -245,24 +273,32 @@ menu "Bootloader config"
         depends on BOOTLOADER_APP_ANTI_ROLLBACK
         range 1 32 if IDF_TARGET_ESP32
         default 32 if IDF_TARGET_ESP32
-        range 1 16 if IDF_TARGET_ESP32S2BETA
-        default 16 if IDF_TARGET_ESP32S2BETA
+        range 1 16
+        default 16
         help
             The size of the efuse secure version field.
-            Its length is limited to 32 bits for ESP32 and 16 bits for ESP32S2BETA.
+            Its length is limited to 32 bits for ESP32 and 16 bits for ESP32-S2.
             This determines how many times the security version can be increased.
 
     config BOOTLOADER_EFUSE_SECURE_VERSION_EMULATE
         bool "Emulate operations with efuse secure version(only test)"
         default n
         depends on BOOTLOADER_APP_ANTI_ROLLBACK
+        select EFUSE_VIRTUAL
+        select EFUSE_VIRTUAL_KEEP_IN_FLASH
         help
-            This option allow emulate read/write operations with efuse secure version.
-            It allow to test anti-rollback implemention without permanent write eFuse bits.
-            In partition table should be exist this partition `emul_efuse, data, 5, , 0x2000`.
+            This option allows to emulate read/write operations with all eFuses and efuse secure version.
+            It allows to test anti-rollback implemention without permanent write eFuse bits.
+            There should be an entry in partition table with following details: `emul_efuse, data, efuse, , 0x2000`.
+
+            This option enables: EFUSE_VIRTUAL and EFUSE_VIRTUAL_KEEP_IN_FLASH.
 
     config BOOTLOADER_SKIP_VALIDATE_IN_DEEP_SLEEP
         bool "Skip image validation when exiting deep sleep"
+        # note: dependencies for this config item are different to other "skip image validation"
+        # options, allowing to turn on "allow insecure options" and have secure boot with
+        # "skip validation when existing deep sleep". Keeping this to avoid a breaking change,
+        # but - as noted in help - it invalidates the integrity of Secure Boot checks
         depends on (SECURE_BOOT && SECURE_BOOT_INSECURE) || !SECURE_BOOT
         default n
         help
@@ -275,6 +311,48 @@ menu "Bootloader config"
             partition as this would skip the validation upon first load of the new
             OTA partition.
 
+            It is possible to enable this option with Secure Boot if "allow insecure
+            options" is enabled, however it's strongly recommended to NOT enable it as
+            it may allow a Secure Boot bypass.
+
+    config BOOTLOADER_SKIP_VALIDATE_ON_POWER_ON
+        bool "Skip image validation from power on reset (READ HELP FIRST)"
+        # only available if both Secure Boot and Check Signature on Boot are disabled
+        depends on !SECURE_SIGNED_ON_BOOT
+        default n
+        help
+            Some applications need to boot very quickly from power on. By default, the entire app binary
+            is read from flash and verified which takes up a significant portion of the boot time.
+
+            Enabling this option will skip validation of the app when the SoC boots from power on.
+            Note that in this case it's not possible for the bootloader to detect if an app image is
+            corrupted in the flash, therefore it's not possible to safely fall back to a different app
+            partition. Flash corruption of this kind is unlikely but can happen if there is a serious
+            firmware bug or physical damage.
+
+            Following other reset types, the bootloader will still validate the app image. This increases
+            the chances that flash corruption resulting in a crash can be detected following soft reset, and
+            the bootloader will fall back to a valid app image. To increase the chances of successfully recovering
+            from a flash corruption event, keep the option BOOTLOADER_WDT_ENABLE enabled and consider also enabling
+            BOOTLOADER_WDT_DISABLE_IN_USER_CODE - then manually disable the RTC Watchdog once the app is running.
+            In addition, enable both the Task and Interrupt watchdog timers with reset options set.
+
+    config BOOTLOADER_SKIP_VALIDATE_ALWAYS
+        bool "Skip image validation always (READ HELP FIRST)"
+        # only available if both Secure Boot and Check Signature on Boot are disabled
+        depends on !SECURE_SIGNED_ON_BOOT
+        default n
+        select BOOTLOADER_SKIP_VALIDATE_IN_DEEP_SLEEP
+        select BOOTLOADER_SKIP_VALIDATE_ON_POWER_ON
+        help
+            Selecting this option prevents the bootloader from ever validating the app image before
+            booting it. Any flash corruption of the selected app partition will make the entire SoC
+            unbootable.
+
+            Although flash corruption is a very rare case, it is not recommended to select this option.
+            Consider selecting "Skip image validation from power on reset" instead. However, if boot time
+            is the only important factor then it can be enabled.
+
     config BOOTLOADER_RESERVE_RTC_SIZE
         hex
         default 0x10 if BOOTLOADER_SKIP_VALIDATE_IN_DEEP_SLEEP || BOOTLOADER_CUSTOM_RESERVE_RTC
@@ -308,6 +386,15 @@ menu "Bootloader config"
             in this area of memory, you can increase it. It must be a multiple of 4 bytes.
             This area (rtc_retain_mem_t) is reserved and has access from the bootloader and an application.
 
+    config BOOTLOADER_FLASH_XMC_SUPPORT
+        bool "Enable the support for flash chips of XMC (READ HELP FIRST)"
+        default y
+        help
+            Perform the startup flow recommended by XMC. Please consult XMC for the details of this flow.
+            XMC chips will be forbidden to be used, when this option is disabled.
+
+            DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU ARE DOING.
+
 endmenu  # Bootloader
 
 
@@ -334,6 +421,16 @@ menu "Security features"
         select MBEDTLS_ECDSA_C
         depends on SECURE_SIGNED_ON_BOOT || SECURE_SIGNED_ON_UPDATE
 
+    config SECURE_BOOT_SUPPORTS_RSA
+        bool
+        default y
+        depends on ESP32_REV_MIN_3 || IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3
+
+    config SECURE_TARGET_HAS_SECURE_ROM_DL_MODE
+        bool
+        default y
+        depends on IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3
+
 
     config SECURE_SIGNED_APPS_NO_SECURE_BOOT
         bool "Require signed app images"
@@ -357,7 +454,7 @@ menu "Security features"
             1. ECDSA based secure boot scheme. (Only choice for Secure Boot V1)
             Supported in ESP32 and ESP32-ECO3.
             2. The RSA based secure boot scheme. (Only choice for Secure Boot V2)
-            Supported in ESP32-ECO3. (ESP32 Chip Revision 3 onwards)
+            Supported in ESP32-ECO3 (ESP32 Chip Revision 3 onwards), ESP32-S2, ESP32-C3, ESP32-S3.
 
         config SECURE_SIGNED_APPS_ECDSA_SCHEME
             bool "ECDSA"
@@ -369,7 +466,7 @@ menu "Security features"
 
         config SECURE_SIGNED_APPS_RSA_SCHEME
             bool "RSA"
-            depends on ESP32_REV_MIN_3 && SECURE_BOOT_V2_ENABLED
+            depends on SECURE_BOOT_SUPPORTS_RSA && (SECURE_SIGNED_APPS_NO_SECURE_BOOT || SECURE_BOOT_V2_ENABLED)
             help
                 Appends the RSA-3072 based Signature block to the application.
                 Refer to <Secure Boot Version 2 documentation link> before enabling.
@@ -378,7 +475,7 @@ menu "Security features"
     config SECURE_SIGNED_ON_BOOT_NO_SECURE_BOOT
         bool "Bootloader verifies app signatures"
         default n
-        depends on SECURE_SIGNED_APPS_NO_SECURE_BOOT
+        depends on SECURE_SIGNED_APPS_NO_SECURE_BOOT && SECURE_SIGNED_APPS_ECDSA_SCHEME
         help
             If this option is set, the bootloader will be compiled with code to verify that an app is signed before
             booting it.
@@ -404,6 +501,8 @@ menu "Security features"
     config SECURE_BOOT
         bool "Enable hardware Secure Boot in bootloader (READ DOCS FIRST)"
         default n
+        depends on IDF_TARGET_ESP32 || IDF_TARGET_ESP32S2 || ESP32C3_REV_MIN_3 || IDF_TARGET_ESP32S3
+        select ESPTOOLPY_NO_STUB if !IDF_TARGET_ESP32 && !IDF_TARGET_ESP32S2
         help
             Build a bootloader which enables Secure Boot on first boot.
 
@@ -420,7 +519,7 @@ menu "Security features"
         help
             Select the Secure Boot Version. Depends on the Chip Revision.
             Secure Boot V2 is the new RSA based secure boot scheme.
-            Supported in ESP32-ECO3. (ESP32 Chip Revision 3 onwards)
+            Supported in ESP32-ECO3 (ESP32 Chip Revision 3 onwards), ESP32-S2, ESP32-C3 ECO3.
             Secure Boot V1 is the AES based secure boot scheme.
             Supported in ESP32 and ESP32-ECO3.
 
@@ -433,7 +532,7 @@ menu "Security features"
 
         config SECURE_BOOT_V2_ENABLED
             bool "Enable Secure Boot version 2"
-            depends on ESP32_REV_MIN_3
+            depends on SECURE_BOOT_SUPPORTS_RSA
             help
                 Build a bootloader which enables Secure Boot version 2 on first boot.
                 Refer to Secure Boot V2 section of the ESP-IDF Programmer's Guide for this version before enabling.
@@ -515,6 +614,22 @@ menu "Security features"
 
             Refer to the Secure Boot section of the ESP-IDF Programmer's Guide for this version before enabling.
 
+    config SECURE_BOOT_ENABLE_AGGRESSIVE_KEY_REVOKE
+        bool "Enable Aggressive key revoke strategy"
+        depends on SECURE_BOOT && (IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3)
+        default N
+        help
+            If this option is set, ROM bootloader will revoke the public key digest burned in efuse block
+            if it fails to verify the signature of software bootloader with it.
+            Revocation of keys does not happen when enabling secure boot. Once secure boot is enabled,
+            key revocation checks will be done on subsequent boot-up, while verifying the software bootloader
+
+            This feature provides a strong resistance against physical attacks on the device.
+
+            NOTE: Once a digest slot is revoked, it can never be used again to verify an image
+            This can lead to permanent bricking of the device, in case all keys are revoked
+            because of signature verification failure.
+
     choice SECURE_BOOTLOADER_KEY_ENCODING
         bool "Hardware Key Encoding"
         depends on SECURE_BOOTLOADER_REFLASHABLE
@@ -566,7 +681,7 @@ menu "Security features"
     choice SECURE_FLASH_ENCRYPTION_KEYSIZE
         bool "Size of generated AES-XTS key"
         default SECURE_FLASH_ENCRYPTION_AES128
-        depends on IDF_TARGET_ESP32S2BETA && SECURE_FLASH_ENC_ENABLED
+        depends on (IDF_TARGET_ESP32S2 || IDF_TARGET_ESP32S3) && SECURE_FLASH_ENC_ENABLED
         help
             Size of generated AES-XTS key.
 
@@ -588,16 +703,18 @@ menu "Security features"
         depends on SECURE_FLASH_ENC_ENABLED
         default SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT
         help
-            By default Development mode is enabled which allows UART bootloader to perform flash encryption operations
+            By default Development mode is enabled which allows ROM download mode to perform flash encryption
+            operations (plaintext is sent to the device, and it encrypts it internally and writes ciphertext
+            to flash.) This mode is not secure, it's possible for an attacker to write their own chosen plaintext
+            to flash.
 
-            Select Release mode only for production or manufacturing. Once enabled you can not reflash using UART
-            bootloader
+            Release mode should always be selected for production or manufacturing. Once enabled it's no longer
+            possible for the device in ROM Download Mode to use the flash encryption hardware.
 
-            Refer to the Secure Boot section of the ESP-IDF Programmer's Guide for this version and
-            https://docs.espressif.com/projects/esp-idf/en/latest/security/flash-encryption.html for details.
+            Refer to the Flash Encryption section of the ESP-IDF Programmer's Guide for details.
 
         config SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT
-            bool "Development(NOT SECURE)"
+            bool "Development (NOT SECURE)"
             select SECURE_FLASH_UART_BOOTLOADER_ALLOW_ENC
 
         config SECURE_FLASH_ENCRYPTION_MODE_RELEASE
@@ -617,7 +734,7 @@ menu "Security features"
 
         config SECURE_BOOT_ALLOW_ROM_BASIC
             bool "Leave ROM BASIC Interpreter available on reset"
-            depends on SECURE_BOOT_INSECURE || SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT
+            depends on (SECURE_BOOT_INSECURE || SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT) && IDF_TARGET_ESP32
             default N
             help
                 By default, the BASIC ROM Console starts on reset if no valid bootloader is
@@ -664,9 +781,27 @@ menu "Security features"
                 efuse when Secure Boot is enabled. This prevents any more efuses from being read protected.
 
                 If this option is set, it will remain possible to write the EFUSE_RD_DIS efuse field after Secure
-                Boot is enabled. This may allow an attacker to read-protect the BLK2 efuse holding the public
-                key digest, causing an immediate denial of service and possibly allowing an additional fault
-                injection attack to bypass the signature protection.
+                Boot is enabled. This may allow an attacker to read-protect the BLK2 efuse (for ESP32) and
+                BLOCK4-BLOCK10 (i.e. BLOCK_KEY0-BLOCK_KEY5)(for other chips) holding the public key digest, causing an
+                immediate denial of service and possibly allowing an additional fault injection attack to
+                bypass the signature protection.
+
+                NOTE: Once a BLOCK is read-protected, the application will read all zeros from that block
+
+                NOTE: If "UART ROM download mode (Permanently disabled (recommended))" or
+                "UART ROM download mode (Permanently switch to Secure mode (recommended))" is set,
+                then it is __NOT__ possible to read/write efuses using espefuse.py utility.
+                However, efuse can be read/written from the application
+
+        config SECURE_BOOT_ALLOW_UNUSED_DIGEST_SLOTS
+            bool "Leave unused digest slots available (not revoke)"
+            depends on SECURE_BOOT_INSECURE && !IDF_TARGET_ESP32
+            default N
+            help
+                If not set (default), during startup in the app all unused digest slots will be revoked.
+                To revoke unused slot will be called esp_efuse_set_digest_revoke(num_digest) for each digest.
+                Revoking unused digest slots makes ensures that no trusted keys can be added later by an attacker.
+                If set, it means that you have a plan to use unused digests slots later.
 
         config SECURE_FLASH_UART_BOOTLOADER_ALLOW_ENC
             bool "Leave UART bootloader encryption enabled"
@@ -680,7 +815,7 @@ menu "Security features"
 
         config SECURE_FLASH_UART_BOOTLOADER_ALLOW_DEC
             bool "Leave UART bootloader decryption enabled"
-            depends on SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT
+            depends on SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT && IDF_TARGET_ESP32
             default N
             help
                 If not set (default), the bootloader will permanently disable UART bootloader decryption access on
@@ -715,22 +850,72 @@ menu "Security features"
 
     endmenu  # Potentially Insecure
 
-    config SECURE_DISABLE_ROM_DL_MODE
-        bool "Permanently disable ROM Download Mode"
-        depends on ESP32_REV_MIN_3
-        default n
+    config SECURE_FLASH_CHECK_ENC_EN_IN_APP
+        bool "Check Flash Encryption enabled on app startup"
+        depends on SECURE_FLASH_ENC_ENABLED
+        default y
         help
-            If set, during startup the app will burn an eFuse bit to permanently disable the UART ROM
-            Download Mode. This prevents any future use of esptool.py, espefuse.py and similar tools.
+            If set (default), in an app during startup code,
+            there is a check of the flash encryption eFuse bit is on
+            (as the bootloader should already have set it).
+            The app requires this bit is on to continue work otherwise abort.
 
-            Once disabled, if the SoC is booted with strapping pins set for ROM Download Mode
-            then an error is printed instead.
+            If not set, the app does not care if the flash encryption eFuse bit is set or not.
 
-            It is recommended to enable this option in any production application where Flash
-            Encryption and/or Secure Boot is enabled and access to Download Mode is not required.
+    choice SECURE_UART_ROM_DL_MODE
+        bool "UART ROM download mode"
+        default SECURE_ENABLE_SECURE_ROM_DL_MODE if SECURE_TARGET_HAS_SECURE_ROM_DL_MODE && !SECURE_FLASH_ENCRYPTION_MODE_DEVELOPMENT # NOERROR
+        default SECURE_INSECURE_ALLOW_DL_MODE
+        depends on SECURE_BOOT_V2_ENABLED || SECURE_FLASH_ENC_ENABLED
+        depends on !IDF_TARGET_ESP32 || ESP32_REV_MIN_3
 
-            It is also possible to permanently disable Download Mode by calling
-            esp_efuse_disable_rom_download_mode() at runtime.
+        config SECURE_DISABLE_ROM_DL_MODE
+            bool "UART ROM download mode (Permanently disabled (recommended))"
+            help
+                If set, during startup the app will burn an eFuse bit to permanently disable the UART ROM
+                Download Mode. This prevents any future use of esptool.py, espefuse.py and similar tools.
 
+                Once disabled, if the SoC is booted with strapping pins set for ROM Download Mode
+                then an error is printed instead.
+
+                It is recommended to enable this option in any production application where Flash
+                Encryption and/or Secure Boot is enabled and access to Download Mode is not required.
+
+                It is also possible to permanently disable Download Mode by calling
+                esp_efuse_disable_rom_download_mode() at runtime.
+
+        config SECURE_ENABLE_SECURE_ROM_DL_MODE
+            bool "UART ROM download mode (Permanently switch to Secure mode (recommended))"
+            depends on SECURE_TARGET_HAS_SECURE_ROM_DL_MODE
+            select ESPTOOLPY_NO_STUB
+            help
+                If set, during startup the app will burn an eFuse bit to permanently switch the UART ROM
+                Download Mode into a separate Secure Download mode. This option can only work if
+                Download Mode is not already disabled by eFuse.
+
+                Secure Download mode limits the use of Download Mode functions to simple flash read,
+                write and erase operations, plus a command to return a summary of currently enabled
+                security features.
+
+                Secure Download mode is not compatible with the esptool.py flasher stub feature,
+                espefuse.py, read/writing memory or registers, encrypted download, or any other
+                features that interact with unsupported Download Mode commands.
+
+                Secure Download mode should be enabled in any application where Flash Encryption
+                and/or Secure Boot is enabled. Disabling this option does not immediately cancel
+                the benefits of the security features, but it increases the potential "attack
+                surface" for an attacker to try and bypass them with a successful physical attack.
+
+                It is also possible to enable secure download mode at runtime by calling
+                esp_efuse_enable_rom_secure_download_mode()
+
+                Note: Secure Download mode is not available for ESP32 (includes revisions till ECO3).
+
+        config SECURE_INSECURE_ALLOW_DL_MODE
+            bool "UART ROM download mode (Enabled (not recommended))"
+            help
+                This is a potentially insecure option.
+                Enabling this option will allow the full UART download mode to stay enabled.
+                This option SHOULD NOT BE ENABLED for production use cases.
+    endchoice
 endmenu  # Security features
-

components/bootloader/Makefile.projbuild

@@ -17,6 +17,8 @@ CONFIG_SECURE_BOOT_SIGNING_KEY ?=
 SECURE_BOOT_SIGNING_KEY=$(abspath $(call dequote,$(CONFIG_SECURE_BOOT_SIGNING_KEY)))
 export SECURE_BOOT_SIGNING_KEY  # used by bootloader_support component
 
+BOOTLOADER_SIGNED_BIN ?=
+
 # Has a matching value in bootloader_support esp_flash_partitions.h
 BOOTLOADER_OFFSET := 0x1000
 
@@ -25,6 +27,9 @@ BOOTLOADER_OFFSET := 0x1000
 # NB: Some variables are cleared in the environment, not
 # overriden, because they need to be re-defined in the child
 # project.
+#
+# Pass PROJECT_PATH variable, it will let the subproject look
+# for user defined bootloader component(s).
 BOOTLOADER_MAKE= +\
 	PROJECT_PATH= \
 	COMPONENT_DIRS= \
@@ -33,7 +38,8 @@ BOOTLOADER_MAKE= +\
 	BUILD_DIR_BASE=$(BOOTLOADER_BUILD_DIR) \
 	TEST_COMPONENTS= \
 	TESTS_ALL= \
-	EXCLUDE_COMPONENTS=
+	EXCLUDE_COMPONENTS= \
+	PROJECT_SOURCE_DIR=$(PROJECT_PATH)
 
 .PHONY: bootloader-clean bootloader-flash bootloader-list-components bootloader $(BOOTLOADER_BIN)
 
@@ -55,6 +61,7 @@ bootloader: $(BOOTLOADER_BIN) | check_python_dependencies
 	@echo "$(ESPTOOLPY_WRITE_FLASH) $(BOOTLOADER_OFFSET) $^"
 
 ESPTOOL_ALL_FLASH_ARGS += $(BOOTLOADER_OFFSET) $(BOOTLOADER_BIN)
+UF2_ADD_BINARIES += $(BOOTLOADER_OFFSET) $(BOOTLOADER_BIN)
 
 bootloader-flash: $(BOOTLOADER_BIN) $(call prereq_if_explicit,erase_flash) | check_python_dependencies
 	$(ESPTOOLPY_WRITE_FLASH) 0x1000 $^
@@ -102,7 +109,7 @@ endif
 bootloader: $(BOOTLOADER_DIGEST_BIN)
 	@echo $(SEPARATOR)
 	@echo "Bootloader built and secure digest generated. First time flash command is:"
-	@echo "$(ESPEFUSEPY) burn_key secure_boot $(SECURE_BOOTLOADER_KEY)"
+	@echo "$(ESPEFUSEPY) burn_key secure_boot_v1 $(SECURE_BOOTLOADER_KEY)"
 	@echo "$(ESPTOOLPY_WRITE_FLASH) $(BOOTLOADER_OFFSET) $(BOOTLOADER_BIN)"
 	@echo $(SEPARATOR)
 	@echo "To reflash the bootloader after initial flash:"
@@ -157,4 +164,4 @@ ifdef CONFIG_SECURE_SIGNED_APPS_RSA_SCHEME
 ifdef CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES
 	rm -f $(BOOTLOADER_SIGNED_BIN)
 endif
-endif
+endif

components/bootloader/component.mk

@@ -4,4 +4,3 @@
 #
 # See Makefile.projbuild for the targets which actually build the bootloader.
 COMPONENT_CONFIG_ONLY := 1
-

components/bootloader/flash_bootloader_args.in

@@ -1,4 +0,0 @@
---flash_mode ${ESPFLASHMODE}
---flash_size ${ESPFLASHSIZE}
---flash_freq ${ESPFLASHFREQ}
-${OFFSET} ${IMAGE}

components/bootloader/project_include.cmake

@@ -1,4 +1,4 @@
-set(BOOTLOADER_OFFSET 0x1000)
+set(BOOTLOADER_OFFSET ${CONFIG_BOOTLOADER_OFFSET_IN_FLASH})
 
 # Do not generate flash file when building bootloader
 if(BOOTLOADER_BUILD OR NOT CONFIG_APP_BUILD_BOOTLOADER)
@@ -117,6 +117,7 @@ externalproject_add(bootloader
     CMAKE_ARGS  -DSDKCONFIG=${sdkconfig} -DIDF_PATH=${idf_path} -DIDF_TARGET=${idf_target}
                 -DPYTHON_DEPS_CHECKED=1 -DPYTHON=${python}
                 -DEXTRA_COMPONENT_DIRS=${CMAKE_CURRENT_LIST_DIR}
+                -DPROJECT_SOURCE_DIR=${PROJECT_SOURCE_DIR}
                 ${sign_key_arg} ${ver_key_arg}
                 # LEGACY_INCLUDE_COMMON_HEADERS has to be passed in via cache variable since
                 # the bootloader common component requirements depends on this and

components/bootloader/subproject/CMakeLists.txt

@@ -15,12 +15,44 @@ if(NOT IDF_TARGET)
         "in by the parent build process.")
 endif()
 
-set(COMPONENTS bootloader esptool_py partition_table soc bootloader_support log spi_flash micro-ecc main efuse)
+# A number of these components are implemented as config-only when built in the bootloader
+set(COMPONENTS
+    bootloader
+    esptool_py
+    esp_hw_support
+    esp_system
+    freertos
+    hal
+    partition_table
+    soc
+    bootloader_support
+    log
+    spi_flash
+    micro-ecc
+    main
+    efuse
+    esp_system
+    newlib)
+
+# Make EXTRA_COMPONENT_DIRS variable to point to the bootloader_components directory
+# of the project being compiled
+set(PROJECT_EXTRA_COMPONENTS "${PROJECT_SOURCE_DIR}/bootloader_components")
+list(APPEND EXTRA_COMPONENT_DIRS "${PROJECT_EXTRA_COMPONENTS}")
+
+# Consider each directory in project's bootloader_components as a component to be compiled
+file(GLOB proj_components RELATIVE ${PROJECT_EXTRA_COMPONENTS} ${PROJECT_EXTRA_COMPONENTS}/*)
+foreach(component ${proj_components})
+  # Only directories are considered as components
+  if(IS_DIRECTORY ${curdir}/${child})
+    list(APPEND COMPONENTS ${component})
+  endif()
+endforeach()
+
 set(BOOTLOADER_BUILD 1)
 include("${IDF_PATH}/tools/cmake/project.cmake")
-set(common_req log esp_rom esp_common xtensa)
+set(common_req log esp_rom esp_common esp_hw_support hal newlib)
 if(LEGACY_INCLUDE_COMMON_HEADERS)
-    list(APPEND common_req soc)
+    list(APPEND common_req soc hal)
 endif()
 idf_build_set_property(__COMPONENT_REQUIRES_COMMON "${common_req}")
 idf_build_set_property(__OUTPUT_SDKCONFIG 0)
@@ -29,9 +61,19 @@ project(bootloader)
 idf_build_set_property(COMPILE_DEFINITIONS "-DBOOTLOADER_BUILD=1" APPEND)
 idf_build_set_property(COMPILE_OPTIONS "-fno-stack-protector" APPEND)
 
+idf_component_get_property(main_args esptool_py FLASH_ARGS)
+idf_component_get_property(sub_args esptool_py FLASH_SUB_ARGS)
+
+# String for printing flash command
+string(REPLACE ";" " " esptoolpy_write_flash
+    "${ESPTOOLPY} --port=(PORT) --baud=(BAUD) ${main_args} "
+    "write_flash ${sub_args}")
+
 string(REPLACE ";" " " espsecurepy "${ESPSECUREPY}")
 string(REPLACE ";" " " espefusepy "${ESPEFUSEPY}")
-set(esptoolpy_write_flash "${ESPTOOLPY_WRITE_FLASH_STR}")
+
+# Suppress warning: "Manually-specified variables were not used by the project: SECURE_BOOT_SIGNING_KEY"
+set(ignore_signing_key "${SECURE_BOOT_SIGNING_KEY}")
 
 if(CONFIG_SECURE_BOOTLOADER_REFLASHABLE)
     if(CONFIG_SECURE_BOOTLOADER_KEY_ENCODING_192BIT)
@@ -80,40 +122,42 @@ if(CONFIG_SECURE_BOOTLOADER_REFLASHABLE)
         DEPENDS gen_secure_bootloader_key gen_project_binary
         VERBATIM)
 
-    add_custom_target (gen_bootloader_digest_bin ALL DEPENDS "${bootloader_digest_bin}")
+    add_custom_target(gen_bootloader_digest_bin ALL DEPENDS "${bootloader_digest_bin}")
 endif()
 
 if(CONFIG_SECURE_BOOT_V2_ENABLED)
     if(CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES)
-        get_filename_component(secure_boot_signing_key 
+        get_filename_component(secure_boot_signing_key
             "${SECURE_BOOT_SIGNING_KEY}" ABSOLUTE BASE_DIR "${project_dir}")
 
         if(NOT EXISTS "${secure_boot_signing_key}")
-            message(FATAL_ERROR
-                "Secure Boot Signing Key Not found."
-                "\nGenerate the Secure Boot V2 RSA-PSS 3072 Key."
-                "\nTo generate one, you can use this command:"
-                "\n\t${espsecurepy} generate_signing_key --version 2 ${SECURE_BOOT_SIGNING_KEY}")
+        message(FATAL_ERROR
+            "Secure Boot Signing Key Not found."
+            "\nGenerate the Secure Boot V2 RSA-PSS 3072 Key."
+            "\nTo generate one, you can use this command:"
+            "\n\t${espsecurepy} generate_signing_key --version 2 ${SECURE_BOOT_SIGNING_KEY}")
         endif()
 
         set(bootloader_unsigned_bin "bootloader-unsigned.bin")
         add_custom_command(OUTPUT ".signed_bin_timestamp"
-            COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/${PROJECT_BIN}" "${CMAKE_BINARY_DIR}/${bootloader_unsigned_bin}"
+            COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/${PROJECT_BIN}"
+            "${CMAKE_BINARY_DIR}/${bootloader_unsigned_bin}"
             COMMAND ${ESPSECUREPY} sign_data --version 2 --keyfile "${secure_boot_signing_key}"
             -o "${CMAKE_BINARY_DIR}/${PROJECT_BIN}" "${CMAKE_BINARY_DIR}/${bootloader_unsigned_bin}"
             COMMAND ${CMAKE_COMMAND} -E echo "Generated signed binary image ${build_dir}/${PROJECT_BIN}"
             "from ${CMAKE_BINARY_DIR}/${bootloader_unsigned_bin}"
-            COMMAND ${CMAKE_COMMAND} -E md5sum "${CMAKE_BINARY_DIR}/${PROJECT_BIN}" > "${CMAKE_BINARY_DIR}/.signed_bin_timestamp"
+            COMMAND ${CMAKE_COMMAND} -E md5sum "${CMAKE_BINARY_DIR}/${PROJECT_BIN}"
+            > "${CMAKE_BINARY_DIR}/.signed_bin_timestamp"
             DEPENDS "${build_dir}/.bin_timestamp"
             VERBATIM
             COMMENT "Generated the signed Bootloader")
     else()
         add_custom_command(OUTPUT ".signed_bin_timestamp"
         VERBATIM
-        COMMENT "Bootloader generated but not signed")    
+        COMMENT "Bootloader generated but not signed")
     endif()
 
-    add_custom_target (gen_signed_bootloader ALL DEPENDS "${build_dir}/.signed_bin_timestamp")
+    add_custom_target(gen_signed_bootloader ALL DEPENDS "${build_dir}/.signed_bin_timestamp")
 endif()
 
 if(CONFIG_SECURE_BOOTLOADER_ONE_TIME_FLASH)
@@ -140,7 +184,7 @@ elseif(CONFIG_SECURE_BOOTLOADER_REFLASHABLE)
         COMMAND ${CMAKE_COMMAND} -E echo
             "Burn secure boot key to efuse using:"
         COMMAND ${CMAKE_COMMAND} -E echo
-            "\t${espefusepy} burn_key secure_boot ${secure_bootloader_key}"
+            "\t${espefusepy} burn_key secure_boot_v1 ${secure_bootloader_key}"
         COMMAND ${CMAKE_COMMAND} -E echo
             "First time flash command is:"
         COMMAND ${CMAKE_COMMAND} -E echo
@@ -159,6 +203,25 @@ elseif(CONFIG_SECURE_BOOTLOADER_REFLASHABLE)
             "* Not recommended to re-use the same secure boot keyfile on multiple production devices."
         DEPENDS gen_secure_bootloader_key gen_bootloader_digest_bin
         VERBATIM)
+elseif(CONFIG_SECURE_BOOT_V2_ENABLED AND (CONFIG_IDF_TARGET_ESP32S2 OR CONFIG_IDF_TARGET_ESP32C3))
+    add_custom_command(TARGET bootloader.elf POST_BUILD
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "=============================================================================="
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "Bootloader built. Secure boot enabled, so bootloader not flashed automatically."
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "To sign the bootloader with additional private keys."
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "\t${espsecurepy} sign_data -k secure_boot_signing_key2.pem -v 2 \
+--append_signatures -o signed_bootloader.bin build/bootloader/bootloader.bin"
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "Secure boot enabled, so bootloader not flashed automatically."
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "\t${esptoolpy_write_flash} ${BOOTLOADER_OFFSET} ${CMAKE_BINARY_DIR}/bootloader.bin"
+    COMMAND ${CMAKE_COMMAND} -E echo
+        "=============================================================================="
+    DEPENDS gen_signed_bootloader
+    VERBATIM)
 elseif(CONFIG_SECURE_BOOT_V2_ENABLED)
     add_custom_command(TARGET bootloader.elf POST_BUILD
     COMMAND ${CMAKE_COMMAND} -E echo

components/bootloader/subproject/Makefile

@@ -8,16 +8,16 @@ endif
 
 PROJECT_NAME := bootloader
 
-COMPONENTS := esptool_py bootloader_support log spi_flash micro-ecc soc main efuse
+COMPONENTS := esp_hw_support esptool_py bootloader_support log spi_flash micro-ecc soc main efuse esp_rom hal xtensa
 
 # Clear C and CXX from top level project
 CFLAGS =
 CXXFLAGS =
 
-#We cannot include the idf_target, esp_rom, esp_common component directly but we need their includes.
+#We cannot include the some components like idf_target, esp_common directly but we need their includes.
 CFLAGS += -I $(IDF_PATH)/components/$(IDF_TARGET)/include
-CFLAGS += -I $(IDF_PATH)/components/esp_rom/include
 CFLAGS += -I $(IDF_PATH)/components/esp_common/include
+CFLAGS += -I $(IDF_PATH)/components/newlib/platform_include
 CFLAGS += -I $(IDF_PATH)/components/xtensa/include -I $(IDF_PATH)/components/xtensa/$(IDF_TARGET)/include
 
 # The bootloader pseudo-component is also included in this build, for its Kconfig.projbuild to be included.
@@ -32,6 +32,4 @@ CFLAGS += -D BOOTLOADER_BUILD=1
 # include the top-level "project" include directory, for sdkconfig.h
 CFLAGS += -I$(BUILD_DIR_BASE)/../include
 
-COMPONENT_ADD_LDFLAGS += -l$(COMPONENT_NAME) -Wl,--wrap=longjmp \
-
 include $(IDF_PATH)/make/project.mk

components/bootloader/subproject/components/micro-ecc/uECC_verify_antifault.c

@@ -1,8 +1,10 @@
-/* Copyright 2014, Kenneth MacKay. Licensed under the BSD 2-clause license.
-
-   Modifications Copyright 2020, Espressif Systems (Shanghai) PTE LTD. Licensed under the BSD
-   2-clause license.
-*/
+/*
+ * SPDX-FileCopyrightText: 2014, Kenneth MacKay
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * SPDX-FileContributor: 2020-2021 Espressif Systems (Shanghai) CO LTD
+ */
 
 /* uECC_verify() calls a number of static functions form here and
    uses other definitions, so we just build that whole source file here and then append
@@ -34,7 +36,7 @@ int uECC_verify_antifault(const uint8_t *public_key,
     uECC_word_t *_public = (uECC_word_t *)public_key;
 #else
     uECC_word_t _public[uECC_MAX_WORDS * 2];
-#endif    
+#endif
     uECC_word_t r[uECC_MAX_WORDS], s[uECC_MAX_WORDS];
     wordcount_t num_words = curve->num_words;
     wordcount_t num_n_words = BITS_TO_WORDS(curve->num_n_bits);
@@ -127,7 +129,7 @@ int uECC_verify_antifault(const uint8_t *public_key,
     const uECC_word_t *mhash_words = (const uECC_word_t *)message_hash;
     uECC_word_t *vhash_words = (uECC_word_t *)verified_hash;
     unsigned hash_words = hash_size / sizeof(uECC_word_t);
-    for (int w = 0; w < hash_words; w++) {
+    for (unsigned int w = 0; w < hash_words; w++) {
         /* note: using curve->num_words here to encourage compiler to re-read this variable */
         vhash_words[w] = mhash_words[w] ^ rx[w % curve->num_words] ^ r[w % curve->num_words];
     }