zephyr/arch/arc/Makefile

cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)

# Without this (poorly named) option, compiler may generate undefined
# references to abort().
# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63691
cflags-y += $(call cc-option,-fno-delete-null-pointer-checks)

cflags-$(CONFIG_LTO) = $(call cc-option,-flto,)

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

KBUILD_CFLAGS += $(cflags-y)
KBUILD_CXXFLAGS += $(cflags-y)

soc-cxxflags ?= $(soc-cflags)
soc-aflags ?= $(soc-cflags)
KBUILD_CFLAGS += $(soc-cflags)
KBUILD_CXXFLAGS += $(soc-cxxflags)
KBUILD_AFLAGS += $(soc-aflags)
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: add -fno-delete-null-pointer-checks This option has side effects. It also tells the compiler not to generate these checks in the first place. The checks call abort() which doesn't exist in our environment. This patch gets rid of linker errors due to missing abort() in the 0.9 SDK. Change-Id: Ibc5aeb5458d0bded714c9c074cdf08112733428b Signed-off-by: Andrew Boie <andrew.p.boie@intel.com> 2017-01-04 05:06:44 +08:00
			`# Without this (poorly named) option, compiler may generate undefined`
			`# references to abort().`
			`# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63691`
			`cflags-y += $(call cc-option,-fno-delete-null-pointer-checks)`

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,)`

new SoC naming convention Use SOC_FAMILY and SOC_SERIES to identify soc families and series and to point to the correct linker files and files related to a specific SoC. Change-Id: I8b1a7339f37d6ea4161d03073d36557a40c0b4a6 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2016-04-03 21:37:43 +08:00			`include $(srctree)/arch/$(ARCH)/soc/$(SOC_PATH)/Makefile`
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_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
build: Introduce concept of SoC specific build flags Introduce a soc-cflags, soc-cxxflags, and soc-aflags as a means for SoC specific compiler flags to be set without manipulating Kbuild options directly. Change-Id: I2c8f5019fb237429e59717ef96bd4251a61dc1a5 Signed-off-by: Kumar Gala <kumar.gala@linaro.org> 2016-05-26 23:32:04 +08:00			`soc-cxxflags ?= $(soc-cflags)`
			`soc-aflags ?= $(soc-cflags)`
			`KBUILD_CFLAGS += $(soc-cflags)`
			`KBUILD_CXXFLAGS += $(soc-cxxflags)`
			`KBUILD_AFLAGS += $(soc-aflags)`