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Re: Compile performance of Linux kernels in mainline gcc
- From: Andi Kleen <ak at suse dot de>
- To: Zack Weinberg <zack at codesourcery dot com>
- Cc: Andi Kleen <ak at suse dot de>, gcc at gcc dot gnu dot org
- Date: Sat, 30 Oct 2004 09:40:31 +0200
- Subject: Re: Compile performance of Linux kernels in mainline gcc
- References: <20041030070951.GA18074@wotan.suse.de> <87sm7whdgc.fsf@codesourcery.com>
> is definitely *not* a problem I have seen before. Unless someone
> knows better, I recommend you file a PR (with a reduced test case if
> possible). The diagnostic GCC was trying to issue is probably
It happens with any warning that contains a function name.
Should be easy to reproduce.
> warning: pointer targets in passing argument %d of %s differ in signedness
>
> where %d is the argument number and %s is the function name. In the
> context of kernel programming this is *probably* harmless.
>
> I have a suspicion as to what is causing the garbage, and therefore I
> suggest that you try to reproduce the problem with LANG=C and LC_ALL=C
> in the environment. Do file a PR whether or not it goes away, though.
LANG=C makes the garbage go away. Thanks. It's PR18229 now.
-Andi