As I said, I would post the patches that let the jmps used by jump labels
be turn to 2 bytes where possible. These are a bit controversial due
to the complexity of the update_jump_label code.
These patches are based off of tip's x86/jumplabel code.
But if someone cares to play with it, feel free. I'll push this up
to my repo under: tip/perf/jump-label-7 (internally this is my 7th version).
I'll post a patch that does the counting as well as a reply to this
post.
Enjoy,
-- Steve
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git
tip/perf/jump-label-7
Head SHA1: 2a7235814df0cccda60a366fb8b1e5502055ea4d
Steven Rostedt (2):
jump labels: Add infrastructure to update jump labels at compile time
x86/jump labels: Use etiher 5 byte or 2 byte jumps
----
Makefile | 7 +
arch/Kconfig | 6 +
arch/x86/Kconfig | 1 +
arch/x86/include/asm/jump_label.h | 7 +-
arch/x86/kernel/jump_label.c | 88 +++++++---
scripts/Makefile | 1 +
scripts/Makefile.build | 15 +-
scripts/update_jump_label.c | 341 +++++++++++++++++++++++++++++++++++++
scripts/update_jump_label.h | 208 ++++++++++++++++++++++
9 files changed, 649 insertions(+), 25 deletions(-)
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