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[PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files

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LOCK_PREFIX is replaced by nops on UP systems, so it has to be a special
macro.  Previously this was only possible from C. Allow it for pure
assembly files too. Similar to earlier x86-64 patch.
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Andi Kleen 2006-09-26 10:52:29 +02:00 committed by Andi Kleen
parent b06babac45
commit 07c9819b31
1 changed files with 14 additions and 0 deletions
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include/asm-i386/alternative-asm.i Normal file
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#include <linux/config.h>
#ifdef CONFIG_SMP
.macro LOCK_PREFIX
1: lock
.section .smp_locks,"a"
.align 4
.long 1b
.previous
.endm
#else
.macro LOCK_PREFIX
.endm
#endif