Suppression inside of a macro

[Adrian Reber]

In the project I am using cppcheck for (CRIU) we have a macro which cppcheck does not like. The clang analyzer also complains about it:

See: https://github.com/checkpoint-restore/criu/blob/criu-dev/include/common/bug.h

#ifndef __clang_analyzer__
# ifndef pr_err
#  error pr_err macro must be defined
# endif
# define BUG_ON_HANDLER(condition)                          \
    do {                                        \
        if ((condition)) {                          \
            pr_err("BUG at %s:%d\n", __FILE__, __LINE__);           \
            __raise();                          \
            *(volatile unsigned long *)NULL = 0xdead0000 + __LINE__;    \
        }                                   \
    } while (0)
#else
# define BUG_ON_HANDLER(condition)  \
    do {                \
        assert(!condition); \
    } while (0)
#endif

I am able to disable the clang analyzer with an '#ifdef' and I was trying to put in
a line to suppress cppcheck in the macro: /* cppcheck-suppress nullPointer */

But it seems I can only disable the nullPointer warning if I put the suppress line before calling the macro.

Is it possible to tell cppcheck to skip the nullPointer check just for this macro using inline annotations? That way I only have to add the annotation once.

Thanks

[Daniel Marjamäki]

It would be really nice to be able to put a suppression inside a macro. But that is not possible right now. And I have the feeling it would be a pretty complex change.

This could be solved with a -D__clang_analyzer__ on the command line. I would combine that with a --force.

[Adrian Reber]

Okay, thanks. Will try using -D.