]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] x86-64: Speed up dwarf2 unwinder
authorJan Beulich <jbeulich@novell.com>
Sat, 21 Oct 2006 16:37:01 +0000 (18:37 +0200)
committerAndi Kleen <andi@basil.nowhere.org>
Sat, 21 Oct 2006 16:37:01 +0000 (18:37 +0200)
commit690a973f48b6ba2954465992c08e65059c8374fe
treeb30a59496628592233944b3f4340cdfdf9d3d5de
parentcdfce1f5714fec7b24715f569b2fee1607350a6d
[PATCH] x86-64: Speed up dwarf2 unwinder

This changes the dwarf2 unwinder to do a binary search for CIEs
instead of a linear work. The linker is unfortunately not
able to build a proper lookup table at link time, instead it creates
one at runtime as soon as the bootmem allocator is usable (so you'll continue
using the linear lookup for the first [hopefully] few calls).
The code should be ready to utilize a build-time created table once
a fixed linker becomes available.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Makefile
include/asm-generic/vmlinux.lds.h
include/linux/unwind.h
init/main.c
kernel/unwind.c