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libpayload: Clean up CFLAGS

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- Add -ffreestanding and -fomit-frame-pointer for all
  platforms.
- Add ARMv7 specific flags to the armv7 Makefile

BUG=none
TEST=build, boot depthcharge on ARM and x86
BRANCH=none

Change-Id: I71ab1b096e505940cc20c266bccd43917bcfad3a
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/56104
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
This commit is contained in:
Stefan Reinauer 2013-05-21 14:45:28 -07:00 • committed by ChromeBot
commit 8d40bbf3e0
2 changed files with 5 additions and 2 deletions
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5
payloads/libpayload/Makefile.inc
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@ -54,9 +54,10 @@ subdirs-$(CONFIG_LZMA) += liblzma
INCLUDES := -Iinclude -Iinclude/$(ARCHDIR-y) -I$(obj)
CFLAGS = $(EXTRA_CFLAGS) $(INCLUDES) -Os -pipe -nostdinc
CFLAGS += -nostdlib -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -nostdlib -fno-builtin -ffreestanding -fomit-frame-pointer
CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wmissing-prototypes
CFLAGS += -Wwrite-strings -Wredundant-decls -Wno-trigraphs
CFLAGS += -Wstrict-aliasing -Wshadow -fno-builtin
CFLAGS += -Wstrict-aliasing -Wshadow
$(obj)/libpayload-config.h: $(KCONFIG_AUTOHEADER)
cmp $@ $< 2>/dev/null || cp $< $@

2
payloads/libpayload/arch/armv7/Makefile.inc
View file

@ -27,6 +27,8 @@
## SUCH DAMAGE.
##
CFLAGS += -ffixed-r8 -mfloat-abi=hard -marm -mabi=aapcs-linux
head.o-y += head.S
libc-y += main.c sysinfo.c
libc-y += timer.c coreboot.c util.S