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32 lines
1.1 KiB
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32 lines
1.1 KiB
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Static Analyzer
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===============
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:link_to_translation:`zh_CN:[中文]`
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A static analyzer is a tool that checks source code for errors and vulnerabilities without running it. It helps developers find issues early, improving code quality.
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GNU Static Analyzer
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-------------------
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The GNU Static Analyzer is distributed with GCC (refer to `GCC documentation <https://gcc.gnu.org/onlinedocs/gcc/Static-Analyzer-Options.html>`_). It can be enabled with :ref:`CONFIG_COMPILER_STATIC_ANALYZER` to perform code checks during application builds.
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Suppressing Warnings
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^^^^^^^^^^^^^^^^^^^^
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GNU Static Analyzer is still under development and may give some false-positive warnings. Here is an example of how to suppress unwanted warnings using IDF:
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.. code-block:: c
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#include "esp_compiler.h"
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/* .... */
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ESP_COMPILER_DIAGNOSTIC_PUSH_IGNORE("-Wanalyzer-null-dereference")
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*((volatile int *) 0) = 0;
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ESP_COMPILER_DIAGNOSTIC_POP("-Wanalyzer-null-dereference")
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/* .... */
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Clang Static Analyzer
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---------------------
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See :doc:`IDF Clang-Tidy <../../api-guides/tools/idf-clang-tidy>`
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