Date: Mon, 21 May 2007 05:11:43 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/ia64/ia64 trap.c Message-ID: <200705210511.l4L5BhkV038172@repoman.freebsd.org>
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marcel 2007-05-21 05:11:43 UTC
FreeBSD src repository
Modified files:
sys/ia64/ia64 trap.c
Log:
When speculation fails (as determined by the chk instruction) the
processor is to jump to recovery code. This branching behaviour
may not be implemented by the processor and a Speculative Operation
fault is raised. The OS is responsible to emulate the branch.
Implement this, because GCC 4.2 uses advanced loads regularly.
Revision Changes Path
1.127 +13 -1 src/sys/ia64/ia64/trap.c
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