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https://github.com/zephyrproject-rtos/zephyr
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e3ac0907df
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>
22 lines
620 B
Makefile
22 lines
620 B
Makefile
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KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
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arch-$(CONFIG_CPU_CORTEX_M3) += $(call cc-option,-mthumb -mcpu=cortex-m3) \
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$(call cc-option,-mthumb -march=armv7-m)
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arch-$(CONFIG_CPU_CORTEX_M4) += $(call cc-option,-mthumb -mcpu=cortex-m4) \
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$(call cc-option,-mthumb -march=armv7e-m)
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cflags-$(CONFIG_LTO) = $(call cc-option,-flto,)
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KBUILD_CFLAGS += $(cflags-y) $(arch-y)
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KBUILD_AFLAGS += $(arch-y)
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QEMU_CPU_TYPE_arm = cortex-m3
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QEMU_FLAGS_arm = -cpu $(QEMU_CPU_TYPE_arm) \
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-machine lm3s6965evb -nographic
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QEMU_arm = qemu-system-arm
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export QEMU_FLAGS_arm QEMU_arm
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