test(apptrace): run tests from custom OpenOCD class

examples/system/.build-test-rules.yml

@@ -2,9 +2,9 @@
 
 examples/system/app_trace_basic:
   disable:
-    - if: IDF_TARGET in ["esp32c6", "esp32h2", "esp32p4"]
+    - if: IDF_TARGET in ["esp32p4"]
       temporary: true
-      reason: target esp32c6, esp32h2, esp32p4 is not supported yet
+      reason: lack of runner.
 
 examples/system/base_mac_address:
   depends_components:

examples/system/app_trace_basic/README.md

@@ -1,5 +1,5 @@
-| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-S2 | ESP32-S3 |
-| ----------------- | ----- | -------- | -------- | -------- | -------- |
+| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
+| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
 
 # Application Level Tracing Example (Basic)
 

examples/system/app_trace_basic/pytest_app_trace_basic.py

@@ -1,73 +1,171 @@
-# SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
+# SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Unlicense OR CC0-1.0
+import json
+import logging
+import os
+import signal
 import time
+from telnetlib import Telnet
+from typing import Any
+from typing import Optional
 
 import pexpect
 import pytest
+from pytest_embedded.utils import to_bytes
+from pytest_embedded.utils import to_str
 from pytest_embedded_idf import IdfDut
-from pytest_embedded_jtag import OpenOcd
+
+MAX_RETRIES = 3
+RETRY_DELAY = 1
+TELNET_PORT = 4444
 
 
-def apptrace_wait_stop(openocd: OpenOcd, timeout: int = 30) -> None:
-    stopped = False
-    end_before = time.time() + timeout
-    while not stopped:
-        cmd_out = openocd.write('esp apptrace status')
-        for line in cmd_out.splitlines():
-            if line.startswith('Tracing is STOPPED.'):
-                stopped = True
-                break
-        if not stopped and time.time() > end_before:
-            raise pexpect.TIMEOUT('Failed to wait for apptrace stop!')
+class OpenOCD:
+    def __init__(self, dut: 'IdfDut'):
+        self.dut = dut
+        self.telnet: Optional[Telnet] = None
+        self.log_file = os.path.join(self.dut.logdir, 'ocd.txt')
+        self.proc: Optional[pexpect.spawn] = None
 
-        time.sleep(1)
+    def run(self) -> Optional['OpenOCD']:
+        desc_path = os.path.join(self.dut.app.binary_path, 'project_description.json')
 
+        try:
+            with open(desc_path, 'r') as f:
+                project_desc = json.load(f)
+        except FileNotFoundError:
+            logging.error('Project description file not found at %s', desc_path)
+            return None
 
-@pytest.mark.parametrize(
-    'embedded_services, no_gdb',
-    [
-        ('esp,idf,jtag', 'y'),
-    ],
-    indirect=True,
-)
-@pytest.mark.parametrize(
-    'port, openocd_cli_args', [
-        pytest.param(None, None, marks=[pytest.mark.esp32, pytest.mark.jtag]),
-        pytest.param(None, '-f board/esp32s2-kaluga-1.cfg', marks=[pytest.mark.esp32s2, pytest.mark.jtag]),
-        pytest.param(None, '-f board/esp32c2-ftdi.cfg', marks=[pytest.mark.esp32c2, pytest.mark.jtag]),
-        pytest.param('/dev/serial_ports/ttyACM-esp32', '-f board/esp32s3-builtin.cfg', marks=[pytest.mark.esp32s3, pytest.mark.usb_serial_jtag]),
-        pytest.param('/dev/serial_ports/ttyACM-esp32', '-f board/esp32c3-builtin.cfg', marks=[pytest.mark.esp32c3, pytest.mark.usb_serial_jtag]),
-    ],
-    indirect=True
-)
-def test_examples_app_trace_basic(dut: IdfDut, openocd: OpenOcd) -> None:
-    dut.openocd.write('reset')
-    dut.expect_exact('example: Waiting for OpenOCD connection', timeout=5)
-    assert 'Targets connected.' in dut.openocd.write('esp apptrace start file://apptrace.log 0 2000 3 0 0')
-    apptrace_wait_stop(dut.openocd)
+        openocd_scripts = os.getenv('OPENOCD_SCRIPTS')
+        if not openocd_scripts:
+            logging.error('OPENOCD_SCRIPTS environment variable is not set.')
+            return None
 
-    with open(openocd._logfile, encoding='utf-8') as oocd_log:  # pylint: disable=protected-access
-        cores = 1 if dut.app.sdkconfig.get('ESP_SYSTEM_SINGLE_CORE_MODE') is True else 2
-        params_str = 'App trace params: from {} cores,'.format(cores)
-        found = False
-        for line in oocd_log:
-            if params_str in line:
-                found = True
-                break
-        if found is not True:
-            raise RuntimeError(
-                '"{}" could not be found in {}'.format(params_str, openocd._logfile)  # pylint: disable=protected-access
-            )
+        debug_args = project_desc.get('debug_arguments_openocd')
+        if not debug_args:
+            logging.error("'debug_arguments_openocd' key is missing in project_description.json")
+            return None
 
-    with open('apptrace.log', encoding='utf-8') as apptrace_log:
-        for sample_num in range(1, 51):
-            log_str = 'Apptrace test data[{}]:{}'.format(sample_num, sample_num * sample_num)
-            found = False
-            for line in apptrace_log:
-                if log_str in line:
-                    found = True
-                    break
-            if found is not True:
-                raise RuntimeError(
-                    '"{}" could not be found in {}'.format(log_str, 'apptrace.log')
+        # For debug purposes, make the value '4'
+        ocd_env = os.environ.copy()
+        ocd_env['LIBUSB_DEBUG'] = '1'
+
+        for _ in range(1, MAX_RETRIES + 1):
+            try:
+                self.proc = pexpect.spawn(
+                    command='openocd',
+                    args=['-s', openocd_scripts] + debug_args.split(),
+                    timeout=5,
+                    encoding='utf-8',
+                    codec_errors='ignore',
+                    env=ocd_env,
                 )
+                if self.proc and self.proc.isalive():
+                    self.proc.expect_exact('Info : Listening on port 3333 for gdb connections', timeout=5)
+                    return self
+            except (pexpect.exceptions.EOF, pexpect.exceptions.TIMEOUT) as e:
+                logging.error('Error running OpenOCD: %s', str(e))
+                if self.proc and self.proc.isalive():
+                    self.proc.terminate()
+            time.sleep(RETRY_DELAY)
+
+        logging.error('Failed to run OpenOCD after %d attempts.', MAX_RETRIES)
+        return None
+
+    def connect_telnet(self) -> None:
+        for attempt in range(1, MAX_RETRIES + 1):
+            try:
+                self.telnet = Telnet('127.0.0.1', TELNET_PORT, 5)
+                break
+            except ConnectionRefusedError as e:
+                logging.error('Error telnet connection: %s in attempt:%d', e, attempt)
+                time.sleep(1)
+        else:
+            raise ConnectionRefusedError
+
+    def write(self, s: str) -> Any:
+        if self.telnet is None:
+            logging.error('Telnet connection is not established.')
+            return ''
+        resp = self.telnet.read_very_eager()
+        self.telnet.write(to_bytes(s, '\n'))
+        resp += self.telnet.read_until(b'>')
+        return to_str(resp)
+
+    def apptrace_wait_stop(self, timeout: int = 30) -> None:
+        stopped = False
+        end_before = time.time() + timeout
+        while not stopped:
+            cmd_out = self.write('esp apptrace status')
+            for line in cmd_out.splitlines():
+                if line.startswith('Tracing is STOPPED.'):
+                    stopped = True
+                    break
+            if not stopped and time.time() > end_before:
+                raise pexpect.TIMEOUT('Failed to wait for apptrace stop!')
+            time.sleep(1)
+
+    def kill(self) -> None:
+        # Check if the process is still running
+        if self.proc and self.proc.isalive():
+            self.proc.terminate()
+            self.proc.kill(signal.SIGKILL)
+
+
+def _test_examples_app_trace_basic(dut: IdfDut) -> None:
+    dut.expect_exact('example: Waiting for OpenOCD connection', timeout=5)
+    openocd = OpenOCD(dut).run()
+    assert openocd
+    try:
+        openocd.connect_telnet()
+        openocd.write('log_output {}'.format(openocd.log_file))
+        openocd.write('reset run')
+        dut.expect_exact('example: Waiting for OpenOCD connection', timeout=5)
+        time.sleep(1)  # wait for APPTRACE_INIT semihosting call
+        openocd.write('esp apptrace start file://apptrace.log 0 2000 3 0 0')
+        openocd.apptrace_wait_stop()
+
+        search_strings = ['Targets connected.', 'Disconnect targets...']
+        with open(openocd.log_file, encoding='utf-8') as oocd_log:  # pylint: disable=protected-access
+            cores = 1 if dut.app.sdkconfig.get('ESP_SYSTEM_SINGLE_CORE_MODE') is True else 2
+            search_strings.append('App trace params: from {} cores,'.format(cores))
+            found = False
+            for search_str in search_strings:
+                oocd_log.seek(0)
+                for line in oocd_log:
+                    if search_str in line:
+                        found = True
+                        break
+                if found is not True:
+                    raise RuntimeError(f'"{search_str}" could not be found in {openocd.log_file}')  # pylint: disable=protected-access
+
+        with open('apptrace.log', encoding='utf-8') as apptrace_log:
+            for sample_num in range(1, 51):
+                log_str = 'Apptrace test data[{}]:{}'.format(sample_num, sample_num * sample_num)
+                found = False
+                for line in apptrace_log:
+                    if log_str in line:
+                        found = True
+                        break
+                if found is not True:
+                    raise RuntimeError('"{}" could not be found in {}'.format(log_str, 'apptrace.log'))
+    finally:
+        openocd.kill()
+
+
+@pytest.mark.esp32
+@pytest.mark.esp32c2
+@pytest.mark.esp32s2
+@pytest.mark.jtag
+def test_examples_app_trace_basic(dut: IdfDut) -> None:
+    _test_examples_app_trace_basic(dut)
+
+
+@pytest.mark.esp32s3
+@pytest.mark.esp32c3
+@pytest.mark.esp32c6
+@pytest.mark.esp32h2
+@pytest.mark.usb_serial_jtag
+def test_examples_app_trace_basic_usj(dut: IdfDut) -> None:
+    _test_examples_app_trace_basic(dut)