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Move scripts/Makefile.<arch>preparch to arch/<arch>

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Follow the model of the Linux kernel for adding arch
specific CFLAGS by using the Makefile and Kbuild combination
in the arch/<arch> directory.

This will also allow adding architecture specific targets and is
easy to maintain when alongside the architecture.

Change-Id: If51a78e8845baa71d9090c4a4f49fcd013354840
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This commit is contained in:
Anas Nashif 2015-08-23 11:22:40 -04:00
commit e3ac0907df
10 changed files with 87 additions and 82 deletions
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23
arch/arm/Makefile
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@ -1,4 +1,21 @@
obj-y = core/
obj-$(CONFIG_PLATFORM_FSL_FRDM_K64F) += platforms/fsl_frdm_k64f/
obj-$(CONFIG_PLATFORM_TI_LM3S6965) += platforms/ti_lm3s6965/
KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
arch-$(CONFIG_CPU_CORTEX_M3) += $(call cc-option,-mthumb -mcpu=cortex-m3) \
$(call cc-option,-mthumb -march=armv7-m)
arch-$(CONFIG_CPU_CORTEX_M4) += $(call cc-option,-mthumb -mcpu=cortex-m4) \
$(call cc-option,-mthumb -march=armv7e-m)
cflags-$(CONFIG_LTO) = $(call cc-option,-flto,)
KBUILD_CFLAGS += $(cflags-y) $(arch-y)
KBUILD_AFLAGS += $(arch-y)
QEMU_CPU_TYPE_arm = cortex-m3
QEMU_FLAGS_arm = -cpu $(QEMU_CPU_TYPE_arm) \
-machine lm3s6965evb -nographic
QEMU_arm = qemu-system-arm
export QEMU_FLAGS_arm QEMU_arm