diff options
| author | Tom Rini <trini@konsulko.com> | 2016-03-16 19:55:55 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-04-01 17:17:39 -0400 |
| commit | b745e82837e7c285fefdecfd580a343ecbd3baff (patch) | |
| tree | d73d1618bf9d7e3c552fe8cb64715608e41ef80a /arch/arm | |
| parent | 40345e9ea74b0caef06f205364bb2cf93528cc40 (diff) | |
arm: clang: Update support slightly
- Move most of the flags required into LLVM_RELFLAGS to test at build
time instead of requiring them to be passed in.
- Update doc/README.clang to reflect this
- Switch to rpi_2 as the example as it's closer to working out of the
box than rpi is.
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/config.mk | 6 |
2 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile index ce006aed77..09ba027cff 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -16,7 +16,8 @@ arch-$(CONFIG_CPU_SA1100) =-march=armv4 arch-$(CONFIG_CPU_PXA) = arch-$(CONFIG_CPU_ARM1136) =-march=armv5 arch-$(CONFIG_CPU_ARM1176) =-march=armv5t -arch-$(CONFIG_CPU_V7) =$(call cc-option, -march=armv7-a, -march=armv5) +arch-$(CONFIG_CPU_V7) =$(call cc-option, -march=armv7-a, \ + $(call cc-option, -march=armv7, -march=armv5)) arch-$(CONFIG_ARM64) =-march=armv8-a # Evaluate arch cc-option calls now diff --git a/arch/arm/config.mk b/arch/arm/config.mk index 9af6c37218..9a5a9747c4 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -19,6 +19,12 @@ PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \ PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) +# LLVM support +LLVMS_RELFLAGS := $(call cc-option,-mllvm,) \ + $(call cc-option,-target arm-none-eabi,) \ + $(call cc-option,-arm-use-movt=0,) +PLATFORM_RELFLAGS += $(LLVM_RELFLAGS) + PLATFORM_CPPFLAGS += -D__ARM__ # Choose between ARM/Thumb instruction sets |