Suppressing CERT-C rules

[Richard Slindee]

Hello,

I'm having some troubles trying to suppress specific CERT-C rules using the cert.py addon in cppcheck 2.6.

Right now I'm able to successfully run cppcheck with both misra.py and cert.py. I am able to configure the MISRA addon to ignore multiple rules. With that said, I am having difficulties disabling CERT-C rules in a similar fashion.

I'm running the following line:

cppcheck --language=c --file-filter=*.c --addon=misra.json --addon=cert.json my_code_directory

I'm able to successfully "ignore" all instances of specific MISRA warnings with the following misra.json:

{
  "script": "misra.py",
  "args": [
    "--rule-texts=misra-c-2012.txt",
    "--suppress-rules 1.1,2.5,5.1"
  ]
}

With that said, I cannot seem to do the same with my CERT-C equivalent cert.json:

{
  "script": "cert.py",
  "args": [
    "--suppress-rules EXP05-C"
  ]
}

Where I get the following error:

cert.py: error: unrecognized arguments: --suppress-rules

I tried digging through the documentation pdf, --help, and cppcheck forums, but cannot seem to find a solution. Thus, my questions are:

1. Is it possible to suppress/ignore all checks of specific CERT-C rules when running cppcheck?
2. If so, would it be possible to get an example of a working .json configuration which suppresses one or more CERT-C rules?

Thank you!

-Richard

[Daniel Marjamäki]

as you saw, the --suppress-rules option is only available in misra.

a solution that works for all addons, including misra, is to use --suppress or --suppressions-list on the cppcheck command line.

cppcheck --language=c --file-filter=*.c --addon=misra.json --addon=cert.json my_code_directory --suppress=cert-EXP05

[Richard Slindee]

Thank you very much for the quick reply! I believe my confusion was surrounding what suppression arguments should be specified in the .json file versus the CLI call. Your example works wonderfully.