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| author | Che-Liang Chiou <clchiou@chromium.org> | 2011-06-21 15:25:51 -0700 |
|---|---|---|
| committer | Che-Liang Chiou <clchiou@chromium.org> | 2011-06-21 16:26:36 -0700 |
| commit | 74359b755c4a203df0fe3bf51fc53d5de87d1fbf (patch) | |
| tree | 4a54d3ac7c2ed3378608df1949f6c2abc4d0d8e6 | |
| parent | f155ab3a26d07f94dcf64732d6e19b59da1c96ed (diff) | |
| download | vboot-74359b755c4a203df0fe3bf51fc53d5de87d1fbf.tar.gz | |
make: temporarily hard-coded compiler flags for firmware builds
Before this commit, u-boot and vboot_reference are inter-dependent on
each other; the former needs to be linked with the latter, and the
latter needs the compiler flags of the former to be built properly.
This commit hard-code u-boot's compiler flags into Makefile, and thus
removes the inter-dependency. Note that this is just a temporarily
measure before we get the compiler flags right.
BUG=chromium-os:16808
TEST=emerge-{tegra2_seaboard,x86-alex} vboot_reference-firmware
Change-Id: Ia3b487b32775afd98fa15db29dbff51ae9d8a94d
Reviewed-on: http://gerrit.chromium.org/gerrit/2947
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Tested-by: Che-Liang Chiou <clchiou@chromium.org>
| -rw-r--r-- | Makefile | 29 |
1 files changed, 25 insertions, 4 deletions
@@ -15,10 +15,31 @@ else CFLAGS += -O0 -g endif -# Override CC and CFLAGS only if FIRMWARE_CONFIG_PATH is not empty, but we -# wish to preserve -D flags (so move all -D flags after this). -ifneq (${FIRMWARE_CONFIG_PATH},) -include ${FIRMWARE_CONFIG_PATH} +# +# TODO We hard-code u-boot's compiler flags here just temporarily. As we are +# still investigating which flags are necessary for maintaining a compatible +# ABI, etc. between u-boot and vboot_reference. +# +# Override CC and CFLAGS for firmware builds; if you have any -D flags, please +# add them after this point (e.g., -DVBOOT_DEBUG). +# +ifeq ($(FIRMWARE_ARCH), "arm") +CC = armv7a-cros-linux-gnueabi-gcc +CFLAGS = -g -Os -fno-common -ffixed-r8 -msoft-float -fno-builtin \ + -ffreestanding -nostdinc \ + -isystem /usr/lib/gcc/armv7a-cros-linux-gnueabi/4.4.3/gcc/armv7a-cros-linux-gnueabi/4.4.3/include \ + -pipe -marm -mabi=aapcs-linux -mno-thumb-interwork -march=armv5 \ + -Werror -Wall -Wstrict-prototypes -fno-stack-protector +endif +ifeq ($(FIRMWARE_ARCH), "i386") +CC = i686-pc-linux-gnu-gcc +CFLAGS = -g -Os -ffunction-sections -fvisibility=hidden -fno-builtin \ + -ffreestanding -nostdinc \ + -isystem /usr/lib/gcc/i686-pc-linux-gnu/4.4.3/gcc/i686-pc-linux-gnu/4.4.3/include \ + -pipe -fno-strict-aliasing -Wstrict-prototypes -mregparm=3 \ + -fomit-frame-pointer -ffreestanding -fno-toplevel-reorder \ + -fno-stack-protector -mpreferred-stack-boundary=2 -fno-dwarf2-cfi-asm \ + -march=i386 -Werror -Wall -Wstrict-prototypes -fno-stack-protector endif # Fix compiling directly on host (outside of emake) |