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59 lines
2.3 KiB
Markdown
59 lines
2.3 KiB
Markdown
1 year ago
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# MISRA Compliance for FreeRTOS-Kernel
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FreeRTOS-Kernel is MISRA C:2012 compliant. This directory contains a project to
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run [Synopsys Coverity](https://www.synopsys.com/software-integrity/security-testing/static-analysis-sast.html)
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for checking MISRA compliance.
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> **Note**
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Coverity version 2022.6.1 incorrectly infers the type of `pdTRUE` and `pdFALSE`
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as boolean because of their names, resulting in multiple false positive warnings
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about type mismatch. We replace `pdTRUE` with `pdPASS` and `pdFALSE` with
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`pdFAIL` to avoid these false positive warnings. This workaround will not be
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needed after Coverity fixes the issue of incorrectly inferring the type of
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`pdTRUE` and `pdFALSE` as boolean.
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Deviations from the MISRA C:2012 guidelines are documented in
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[MISRA.md](../../MISRA.md) and [coverity_misra.config](coverity_misra.config)
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files.
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## Getting Started
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### Prerequisites
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Coverity can be run on any platform mentioned [here](https://sig-docs.synopsys.com/polaris/topics/c_coverity-compatible-platforms.html).
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The following are the prerequisites to generate coverity report:
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1. CMake version > 3.13.0 (You can check whether you have this by typing `cmake --version`).
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2. GCC compiler.
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- See download and installation instructions [here](https://gcc.gnu.org/install/).
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3. Clone the repo using the following command:
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- `git clone https://github.com/FreeRTOS/FreeRTOS-Kernel.git ./FreeRTOS-Kernel`
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### Generating Report
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Go to the root directory of the FreeRTOS-Kernel repo and run the following
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commands in a terminal:
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1. Update the compiler configuration in Coverity:
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~~~
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cov-configure --force --compiler cc --comptype gcc
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~~~
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2. Create the build files using CMake in a `build` directory:
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~~~
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cmake -B build -S examples/coverity
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~~~
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3. Build the (pseudo) application:
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~~~
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cd build/
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cov-build --emit-complementary-info --dir cov-out make
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~~~
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4. Go to the Coverity output directory (`cov-out`) and begin Coverity static
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analysis:
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~~~
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cd cov-out/
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cov-analyze --dir ./cov-out \
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--coding-standard-config ../examples/coverity/coverity_misra.config \
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--tu-pattern "file('.*/FreeRTOS/Source/[A-Za-z_]*\.c')
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~~~
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5. Generate the HTML report:
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~~~
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cov-format-errors --dir ./cov-out --html-output html-output
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~~~
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HTML report should now be generated in a directory named `html-output`.
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