[PATCH] x86: Work around gcc 4.2 over aggressive optimizer

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The new PDA code uses a dummy _proxy_pda variable to describe
memory references to the PDA. It is never referenced
in inline assembly, but exists as input/output arguments.
gcc 4.2 in some cases can CSE references to this which causes
unresolved symbols.  Define it to zero to avoid this.

Signed-off-by: Andi Kleen <ak@suse.de>

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Andi Kleen 2006-12-09 21:33:36 +01:00 • committed by Andi Kleen

parent 92715e282b

commit 1bac3b383a

2 changed files with 2 additions and 0 deletions

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arch/i386/kernel/vmlinux.lds.S

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arch/x86_64/kernel/vmlinux.lds.S

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