diff options
| author | Vincent Palatin <vpalatin@chromium.org> | 2015-04-27 14:47:19 -0700 |
|---|---|---|
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | 2015-05-19 02:46:27 +0000 |
| commit | 2650ff3d70c9933e4c3dcd1401ca66b4426def4a (patch) | |
| tree | 7a4658b060d3439a525a7562c226358d55424035 /core/cortex-m0/atomic.h | |
| parent | cb29daa58c0fa5866a7847c454967ef0376c7688 (diff) | |
| download | chrome-ec-2650ff3d70c9933e4c3dcd1401ca66b4426def4a.tar.gz | |
Add option to enable GCC LTO
Add CONFIG_LTO to use GCC Link-Time Optimizations to try to reduce the
flash footprint of the firmware.
Add additional protection to some functions/data to avoid removal by the
linker when their usage is not obvious.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=none
TEST=make buildall (with and without LTO enable on all boards)
Change-Id: I586b8c1eda4592b416c85383b65153c1d5ab0059
Reviewed-on: https://chromium-review.googlesource.com/271291
Trybot-Ready: Vincent Palatin <vpalatin@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'core/cortex-m0/atomic.h')
| -rw-r--r-- | core/cortex-m0/atomic.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/cortex-m0/atomic.h b/core/cortex-m0/atomic.h index 8ba1b66739..62bc2ff370 100644 --- a/core/cortex-m0/atomic.h +++ b/core/cortex-m0/atomic.h @@ -23,7 +23,7 @@ #asm_op" %0, %0, %2\n" \ " str %0, [%1]\n" \ " cpsie i\n" \ - : "=&r" (reg0) \ + : "=&b" (reg0) \ : "b" (a), "r" (v) : "cc"); \ } while (0) |