From 07c9819b31eda7954feddc83f2fae035f31c11e1 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 26 Sep 2006 10:52:29 +0200 Subject: [PATCH] [PATCH] i386: add alternative-asm.h to allow LOCK_PREFIX replacement in .S files 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 --- include/asm-i386/alternative-asm.i | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 include/asm-i386/alternative-asm.i diff --git a/include/asm-i386/alternative-asm.i b/include/asm-i386/alternative-asm.i new file mode 100644 index 000000000000..6c47e3b9484b --- /dev/null +++ b/include/asm-i386/alternative-asm.i @@ -0,0 +1,14 @@ +#include + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 4 + .long 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif