zephyr/arch/arc/Makefile

cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
cflags-$(CONFIG_ARC_STACK_CHECKING) = $(call cc-option,-fomit-frame-pointer)
cflags-$(CONFIG_LTO) = $(call cc-option,-flto,)

include $(srctree)/arch/$(ARCH)/soc/$(SOC_NAME)/Makefile

KBUILD_CFLAGS += $(cflags-y)
KBUILD_CXXFLAGS += $(cflags-y)
Kbuild: fixed arc compiler options This was messed up due to lack of arc platform to test. Change-Id: I5abda172dddf54532c1bcb66f36d02db7f7d7ff4 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2015-09-02 05:33:00 +08:00			`cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)`
arc: implement stack checking ARC CPU has stack checking feature that allows to trigger an exception whenever the stack is incorrectly accessed. This patch implements the stack_top and stack_base register updates on context switches, and activates the Stack Checking bit of STATUS32 register when the CPU is in the context of a fiber or task. As GCC accesses the non-yet allocated stack with frame pointer enabled, this patch also add the omit-frame-pointer gcc flag in order to work properly. Change-Id: Ia9e224085a03bd29d682fb8f51f8e712f2ccb556 Signed-off-by: Alexandre d'Alton <alexandre.dalton@intel.com> 2016-03-12 01:29:14 +08:00			`cflags-$(CONFIG_ARC_STACK_CHECKING) = $(call cc-option,-fomit-frame-pointer)`
Move compiler optimization to the SoC Decisions on compiler optimizations were done on the architecture level, this does not scale and some SoCs will have different optimization levels or compiler options needed. Moving this to the SoC makes it easy to optimize differently when using the same CPU which we use to set the right optimization now on the architecture level. For IAMCU platforms, use the right architecture and tuning. -march=lakemont -mtune=lakemont -miamcu -msoft-float Change-Id: I458afca5feb9be5de8dcae559d6dcac3c6d6a2a7 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2016-01-13 20:49:42 +08:00			`cflags-$(CONFIG_LTO) = $(call cc-option,-flto,)`

			`include $(srctree)/arch/$(ARCH)/soc/$(SOC_NAME)/Makefile`

			`KBUILD_CFLAGS += $(cflags-y)`
			`KBUILD_CXXFLAGS += $(cflags-y)`
arc: add missing Kconfig/Makefiles to architecture Change-Id: I99e96853e5ddc9eb0dd9ca9711921d5b57448db7 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2015-06-20 21:23:14 +08:00