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CVS commit: src/sys/arch/x86/include

Module Name:    src
Committed By:   apb
Date:           Thu Oct 11 11:12:22 UTC 2012

Modified Files:
        src/sys/arch/x86/include: lock.h

Log Message:
Change "=r" to "=qQ" in a register constraint in an asm statement
for a register that is used with the "xchgb" instruction in the
definition of __cpu_simple_lock_try().  This fixes PR 45673, or at
least works around the gcc bug that might be behind PR 45673.

The output from "objdump -d" before and after this change is
identical, for the amd64 GENERIC kernel, the i386 GENERIC kernel,
and the i386 MONOLITHIC kernel.

To generate a diff of this commit:
cvs rdiff -u -r1.25 -r1.26 src/sys/arch/x86/include/lock.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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