commit e2414910f212c52d9d7c64c99a22863488ac5b48
author Andi Kleen <ak@suse.de> Tue Sep 26 10:52:30 2006 +0200
committer Andi Kleen <andi@basil.nowhere.org> Tue Sep 26 10:52:30 2006 +0200
tree 5a7e55191ace4aa755c0684bcefc9cf1b124128c
parent fe7414a2882c953788af13a7f2c9d570ed8f71c5

[PATCH] x86: Detect CFI support in the assembler at runtime

... instead of using a CONFIG option. The config option still controls
if the resulting executable actually has unwind information.

This is useful to prevent compilation errors when users select
CONFIG_STACK_UNWIND on old binutils and also allows to use
CFI in the future for non kernel debugging applications.

Cc: jbeulich@novell.com
Cc: sam@ravnborg.org

Signed-off-by: Andi Kleen <ak@suse.de>

include/asm-x86_64/dwarf2.h

diff --git a/include/asm-x86_64/dwarf2.h b/include/asm-x86_64/dwarf2.h
index 0744db7..2b93683 100644
--- a/include/asm-x86_64/dwarf2.h
+++ b/include/asm-x86_64/dwarf2.h
@@ -13,7 +13,7 @@
    away for older version. 
  */
 
-#ifdef CONFIG_UNWIND_INFO
+#ifdef CONFIG_AS_CFI
 
 #define CFI_STARTPROC .cfi_startproc
 #define CFI_ENDPROC .cfi_endproc