check takes way longer with misra addon

[F Schwa]

Hi,

I am running cppcheck (command line on Linux) on a code base in about 18 seconds. Now I added --addon=misra to the command line and it starts taking 158 minutes.

Do I need to exclude those folders for the misra addon separately?

My command looks like this:

cppcheck \
    --language=c \
    --std=c11 \
    --verbose \
    -D__GNUC__ \
    -DUSE_HAL_DRIVER \
    -DSTM32L471xx \
    -I App/Inc \
    -I Core/Inc \
    -I Drivers/STM32L4xx_HAL_Driver/Inc \
    -I Drivers/CMSIS/Device/ST/STM32L4xx/Include \
    -I Drivers/CMSIS/Include \
    -i Core \
    -i Drivers \
    --error-exitcode=1 \
    --relative-paths \
    --enable=all \
    --addon=misra \ <--- If added, check takes ages
    .

Then in verbose output, I can see a lot of misra-related lines within the Driver folder.

{"file": "Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_adc.h", "linenr": 5202, "column": 40, "severity": "style", "message": "misra violation (use --rule-texts=<file> to get proper output)", "addon": "misra", "errorId": "c2012-11.4", "extra": "Undefined"}
{"file": "Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_adc.h", "linenr": 5316, "column": 34, "severity": "style", "message": "misra violation (use --rule-texts=<file> to get proper output)", "addon": "misra", "errorId": "c2012-11.4", "extra": "Undefined"}
{"file": "Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_adc.h", "linenr": 5316, "column": 34, "severity": "style", "message": "misra violation (use --rule-texts=<file> to get proper output)", "addon": "misra", "errorId": "c2012-11.4", "extra": "Undefined"}

Best regards

[F Schwa]

Hi,

weird thing is, if I create a misra.json:

{
    "script":
        "misra.py",
        "args":
            [
                "--rule-texts=misra.txt"
            ]
}

and change the command line to --addon=misra.json, it still takes ages, but if I put a typo in there like --tule-texts=misra.txt or if the misra.txt does not exist, it runs in 18 seconds again.

Best regards

[F Schwa]

Seems to work now in CppCheck 2.0. Both runs (with valid misra rules file and without) take approximately the same time now.

[versat]

Great, thanks for the feedback.