[PATCH] i386: Abstract sensitive instructions
Abstract sensitive instructions in assembler code, replacing them with macros
(which currently are #defined to the native versions). We use long names:
assembler is case-insensitive, so if something goes wrong and macros do not
expand, it would assemble anyway.
Resulting object files are exactly the same as before.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Andi Kleen <ak@suse.de>
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h
index 3243293..b0b3043 100644
--- a/include/asm-i386/spinlock.h
+++ b/include/asm-i386/spinlock.h
@@ -7,6 +7,9 @@
#include <asm/processor.h>
#include <linux/compiler.h>
+#define CLI_STRING "cli"
+#define STI_STRING "sti"
+
/*
* Your basic SMP spinlocks, allowing only a single CPU anywhere
*
@@ -55,12 +58,12 @@
"2:\t"
"testl $0x200, %1\n\t"
"jz 4f\n\t"
- "sti\n"
+ STI_STRING "\n"
"3:\t"
"rep;nop\n\t"
"cmpb $0, %0\n\t"
"jle 3b\n\t"
- "cli\n\t"
+ CLI_STRING "\n\t"
"jmp 1b\n"
"4:\t"
"rep;nop\n\t"
