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x86: add _ASM_EXTABLE macro to <asm/asm.h>

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Instead of open-coding the __ex_table information at each callsite,
construct a common macro that can work regardless of CPU size.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
H. Peter Anvin 2008-02-04 16:47:56 +01:00 committed by Ingo Molnar
parent 1622ac23bd
commit a34746bc43
1 changed files with 7 additions and 0 deletions
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7
include/asm-x86/asm.h
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@ -29,4 +29,11 @@
#endif /* CONFIG_X86_32 */
/* Exception table entry */
# define _ASM_EXTABLE(from,to) \
" .section __ex_table,\"a\"\n" \
_ASM_ALIGN "\n" \
_ASM_PTR #from "," #to "\n" \
" .previous\n"
#endif /* _ASM_X86_ASM_H */