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| author | Aneesh V <aneesh@ti.com> | 2012-03-08 07:20:20 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:26 +0200 |
| commit | f61faeba822d6db72ade5fb6fe04b4db122a0874 (patch) | |
| tree | e0b215c700c4c2b1519c11f0e381511fcd045033 /arch/arm/cpu/armv7/config.mk | |
| parent | 5356f5451e85695cf8f9782dee54cc8dfa5445e5 (diff) | |
| download | blackbird-obmc-uboot-f61faeba822d6db72ade5fb6fe04b4db122a0874.tar.gz blackbird-obmc-uboot-f61faeba822d6db72ade5fb6fe04b4db122a0874.zip | |
armv7: Use -march=armv7-a and thereby enable Thumb-2
Enable -march=armv7-a for armv7 platforms if the tool-chain
supports it. This in turn results in Thumb-2 code generated
for these platforms if CONFIG_SYS_THUMB_BUILD is enabled.
Signed-off-by: Aneesh V <aneesh@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/config.mk')
| -rw-r--r-- | arch/arm/cpu/armv7/config.mk | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/config.mk b/arch/arm/cpu/armv7/config.mk index f532d62e57..5407cb68a8 100644 --- a/arch/arm/cpu/armv7/config.mk +++ b/arch/arm/cpu/armv7/config.mk @@ -22,8 +22,11 @@ # PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float -# Make ARMv5 to allow more compilers to work, even though its v7a. -PLATFORM_CPPFLAGS += -march=armv5 +# If armv7-a is not supported by GCC fall-back to armv5, which is +# supported by more tool-chains +PF_CPPFLAGS_ARMV7 := $(call cc-option, -march=armv7-a, -march=armv5) +PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARMV7) + # ========================================================================= # # Supply options according to compiler version |
