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zephyr/arch/arm/soc/atmel_sam3/Makefile

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arch/arm: adds initial support for Atmel SAM3X8E processor This adds initial support for Atmel SAM3X8E processor, which is based on ARM Cortex-M3. The SAM3X8E is being used on Arduino Due. Change-Id: I199efcf29629f9ebacad474e5edc91bc3757f613 Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-01-21 13:10:59 +08:00
Revert "arch: arm: set the architecture via Kconfig" This reverts commit 3f6884902b7e3cd780ac3e99d381c5fab1fe0e71. This commit does not work as intended: the part in arch/arm/Makefile gets ignored and -mcpu=cortex-m3/4 does not get passed to gcc. It seems that the zephyr toolchain does not care, but the vxworks assembler chokes if it is missing, and thinks the CPU does not support thumb ISA Change-Id: I14d11d3e22dac4952bdab3eb9e2d1c36b1a686c2 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2016-03-11 05:29:22 +08:00
arch-cflags += $(call cc-option,-mthumb -mcpu=cortex-m3) \
$(call cc-option,-mthumb -march=armv7-m)
arch/arm: adds initial support for Atmel SAM3X8E processor This adds initial support for Atmel SAM3X8E processor, which is based on ARM Cortex-M3. The SAM3X8E is being used on Arduino Due. Change-Id: I199efcf29629f9ebacad474e5edc91bc3757f613 Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2016-01-21 13:10:59 +08:00
Move compiler optimization to the SoC Decisions on compiler optimizations were done on the architecture level, this does not scale and some SoCs will have different optimization levels or compiler options needed. Moving this to the SoC makes it easy to optimize differently when using the same CPU which we use to set the right optimization now on the architecture level. For IAMCU platforms, use the right architecture and tuning. -march=lakemont -mtune=lakemont -miamcu -msoft-float Change-Id: I458afca5feb9be5de8dcae559d6dcac3c6d6a2a7 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-01-13 20:49:42 +08:00
KBUILD_AFLAGS += $(arch-cflags)
KBUILD_CXXFLAGS += $(arch-cflags)
KBUILD_CFLAGS += $(arch-cflags)