Date: Sat, 6 Jan 2007 21:46:23 +0000 (UTC) From: David Schultz <das@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/msun/amd64 fenv.h src/lib/msun/i387 fenv.h Message-ID: <200701062146.l06LkNm9080722@repoman.freebsd.org>
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das 2007-01-06 21:46:23 UTC
FreeBSD src repository
Modified files:
lib/msun/amd64 fenv.h
lib/msun/i387 fenv.h
Log:
Fix a problem relating to fesetenv() clobbering i387 register stack.
Details: As a side-effect of restoring a saved FP environment,
fesetenv() overwrites the tag word, which indicates which i387
registers are in use. Normally this isn't a problem because
the calling convention requires the register stack to be empty
on function entry and exit. However, fesetenv() is inlined, so we
need to tell gcc explicitly that the i387 registers get clobbered.
PR: 85101
Revision Changes Path
1.6 +12 -1 src/lib/msun/amd64/fenv.h
1.6 +12 -1 src/lib/msun/i387/fenv.h
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