Date: Wed, 23 Jul 2008 11:37:20 +0000 (UTC) From: Luoqi Chen <luoqi@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/include profile.h Message-ID: <200807231137.m6NBbWuq073650@repoman.freebsd.org>
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luoqi 2008-07-23 11:37:20 UTC
FreeBSD src repository
Modified files:
sys/i386/include profile.h
Log:
SVN rev 180756 on 2008-07-23 11:37:20Z by luoqi
Unbreak cc -pg support on i386. In gcc 4.2, %ecx is used as the arg pointer
when stack realignment is turned on (it is ALWAYS on for main), however
in a profiling build %ecx would be clobbered by mcount(), this would lead
to a segmentation fault when the code tries to reference any argument.
This fix changes mcount() to preserve %ecx.
PR: bin/119709
Reviewed by: bde
MFC after: 1 week
Revision Changes Path
1.43 +10 -1 src/sys/i386/include/profile.h
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