tree 5a7e55191ace4aa755c0684bcefc9cf1b124128c
parent fe7414a2882c953788af13a7f2c9d570ed8f71c5
author Andi Kleen <ak@suse.de> 1159260750 +0200
committer Andi Kleen <andi@basil.nowhere.org> 1159260750 +0200

[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>