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authorVincent Palatin <vpalatin@chromium.org>2015-04-27 14:47:19 -0700
committerChromeOS Commit Bot <chromeos-commit-bot@chromium.org>2015-05-19 02:46:27 +0000
commit2650ff3d70c9933e4c3dcd1401ca66b4426def4a (patch)
tree7a4658b060d3439a525a7562c226358d55424035 /include/console.h
parentcb29daa58c0fa5866a7847c454967ef0376c7688 (diff)
downloadchrome-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 'include/console.h')
-rw-r--r--include/console.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/console.h b/include/console.h
index ee6897821d..00036d3632 100644
--- a/include/console.h
+++ b/include/console.h
@@ -134,13 +134,13 @@ void console_has_input(void);
#ifdef CONFIG_CONSOLE_CMDHELP
#define DECLARE_CONSOLE_COMMAND(name, routine, argdesc, shorthelp, longhelp) \
static const char __con_cmd_label_##name[] = #name; \
- const struct console_command __con_cmd_##name \
+ const struct console_command __keep __con_cmd_##name \
__attribute__((section(".rodata.cmds." #name))) \
= {__con_cmd_label_##name, routine, argdesc, shorthelp}
#else
#define DECLARE_CONSOLE_COMMAND(name, routine, argdesc, shorthelp, longhelp) \
static const char __con_cmd_label_##name[] = #name; \
- const struct console_command __con_cmd_##name \
+ const struct console_command __keep __con_cmd_##name \
__attribute__((section(".rodata.cmds." #name))) \
= {__con_cmd_label_##name, routine}
#endif