[PATCH] x86: Detect CFI support in the assembler at runtime
authorAndi Kleen <ak@suse.de>
Tue, 26 Sep 2006 08:52:30 +0000 (10:52 +0200)
committerAndi Kleen <andi@basil.nowhere.org>
Tue, 26 Sep 2006 08:52:30 +0000 (10:52 +0200)
commite2414910f212c52d9d7c64c99a22863488ac5b48
tree5a7e55191ace4aa755c0684bcefc9cf1b124128c
parentfe7414a2882c953788af13a7f2c9d570ed8f71c5
[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>
Documentation/kbuild/makefiles.txt
arch/i386/Makefile
arch/x86_64/Makefile
include/asm-x86_64/dwarf2.h
scripts/Kbuild.include