Messages in this thread | | | Date | Sun, 20 Feb 2011 18:11:22 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] kbuild: Add extra gcc checks |
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* Borislav Petkov <bp@alien8.de> wrote:
> Add a 'W=1' Makefile switch which adds additional checking per build > object. > > The idea behind this option is targeted at developers who, in the > process of writing their code, want to do the occasional > > make W=1 [target.o] > > and let gcc do more extensive code checking for them. Then, they > could eyeball the output for valid gcc warnings about various > bugs/discrepancies which are not reported during the normal build > process. > > For more background information and a use case, read through this > thread: http://marc.info/?i=20110218091716.GA4384@bicker > > Cc: Ingo Molnar <mingo@elte.hu> > Cc: Michal Marek <mmarek@suse.cz> > Cc: linux-kbuild@vger.kernel.org > Signed-off-by: Borislav Petkov <bp@alien8.de>
Nice.
Acked-by: Ingo Molnar <mingo@elte.hu>
We enable a lot of GCC warnings in tools/perf/ as well, and while there are false positives occasionally, the general effect on code quality is positive. We combine it with -Werror to make sure warnings do not accumulate.
Thanks,
Ingo
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