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| author | Aseda Aboagye <aaboagye@google.com> | 2015-11-06 10:35:47 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2015-11-09 12:49:47 -0800 |
| commit | 1aebf16f5e44ae551651e10f3554719f9127b4c0 (patch) | |
| tree | a75133d9ef5e2bb76292ad9036445c3a383c0a42 /chip | |
| parent | 20562ac025d8b65fe252a9a9232f70011cf052b3 (diff) | |
| download | chrome-ec-1aebf16f5e44ae551651e10f3554719f9127b4c0.tar.gz | |
GLaDOS: Kunimitsu: Enable link-time optimization.
Turn on LTO for GLaDOS and Kunimitsu. This saves about 5k from the
image on GLaDOS. Also, LTO is disabled for the loader since it actually
causes it to bloat in size for some reason.
BUG=chrome-os-partner:46063
BRANCH=None
TEST=Build and flash on GLaDOS with charger inserted. Verify that EC
boot is successful. sysjump to RW and verify that the jump is
successful.
TEST=make -j buildall tests
Change-Id: I9892edfc724f290acaf6cceba181c177702d63bf
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/311208
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'chip')
| -rw-r--r-- | chip/mec1322/build.mk | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/chip/mec1322/build.mk b/chip/mec1322/build.mk index 0f18cee24c..f2c5cf80a0 100644 --- a/chip/mec1322/build.mk +++ b/chip/mec1322/build.mk @@ -11,6 +11,11 @@ CORE:=cortex-m # Allow the full Cortex-M4 instruction set CFLAGS_CPU+=-march=armv7e-m -mcpu=cortex-m4 +ifeq ($(CONFIG_LTO),y) +# Re-include the core's build.mk file so we can remove the lto flag. +include core/$(CORE)/build.mk +endif + # Required chip modules chip-y=clock.o gpio.o hwtimer.o system.o uart.o jtag.o port80.o chip-$(CONFIG_ADC)+=adc.o @@ -55,6 +60,10 @@ dirs-y+=chip/$(CHIP)/lfw # objs with -lfw suffix are to include lfw's gpio $(out)/RW/%-lfw.o: private CC+=-I$(BDIR)/lfw -DLFW +# Remove the lto flag for the loader. It actually causes it to bloat in size. +ifeq ($(CONFIG_LTO),y) +$(out)/RW/%-lfw.o: private CFLAGS_CPU := $(filter-out -flto, $(CFLAGS_CPU)) +endif $(out)/RW/%-lfw.o: %.c $(call quiet,c_to_o,CC ) |