From: H. Peter Anvin <hpa@zytor.com>
Date: Mon, 4 Feb 2008 15:47:56 +0000 (+0100)
Subject: x86: add _ASM_EXTABLE macro to <asm/asm.h>
X-Git-Tag: v2.6.25-rc1~1057^2~68
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a34746bc43eb63e545abf5eb002d96483a54ee32;p=karo-tx-linux.git

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

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>
---

diff --git a/include/asm-x86/asm.h b/include/asm-x86/asm.h
index 1a6980a60fc6..90dec0c23646 100644
--- a/include/asm-x86/asm.h
+++ b/include/asm-x86/asm.h
@@ -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 */