zephyr/arch/arm/Makefile

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

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

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

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)

QEMU_CPU_TYPE_arm = cortex-m3
QEMU_FLAGS_arm = -cpu  $(QEMU_CPU_TYPE_arm) \
		-machine lm3s6965evb -nographic -vga none
QEMU_arm = qemu-system-arm

export QEMU_FLAGS_arm QEMU_arm
Move scripts/Makefile.<arch>preparch to arch/<arch> 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> 2015-08-23 11:22:40 -04:00			`KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)`

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 09:37:43 -04:00			`include $(srctree)/arch/$(ARCH)/soc/$(SOC_PATH)/Makefile`
Move scripts/Makefile.<arch>preparch to arch/<arch> Follow the model of the Linux kernel for adding arch specific CFLAGS by using the Makefile and Kbuild combination in the arch/<arch> directory. This will also allow adding architecture specific targets and is easy to maintain when alongside the architecture. Change-Id: If51a78e8845baa71d9090c4a4f49fcd013354840 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2015-08-23 11:22:40 -04:00
Move compiler optimization to the SoC Decisions on compiler optimizations were done on the architecture level, this does not scale and some SoCs will have different optimization levels or compiler options needed. Moving this to the SoC makes it easy to optimize differently when using the same CPU which we use to set the right optimization now on the architecture level. For IAMCU platforms, use the right architecture and tuning. -march=lakemont -mtune=lakemont -miamcu -msoft-float Change-Id: I458afca5feb9be5de8dcae559d6dcac3c6d6a2a7 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2016-01-13 07:49:42 -05:00			`cflags-$(CONFIG_LTO) += $(call cc-option,-flto,)`
Move scripts/Makefile.<arch>preparch to arch/<arch> 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> 2015-08-23 11:22:40 -04:00
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 07:49:42 -05:00			`KBUILD_CFLAGS += $(cflags-y)`
			`KBUILD_CXXFLAGS += $(cflags-y)`
Move scripts/Makefile.<arch>preparch to arch/<arch> 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> 2015-08-23 11:22:40 -04:00
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 10:32:04 -05:00			`soc-cxxflags ?= $(soc-cflags)`
			`soc-aflags ?= $(soc-cflags)`
			`KBUILD_CFLAGS += $(soc-cflags)`
			`KBUILD_CXXFLAGS += $(soc-cxxflags)`
			`KBUILD_AFLAGS += $(soc-aflags)`

Move scripts/Makefile.<arch>preparch to arch/<arch> 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> 2015-08-23 11:22:40 -04:00			`QEMU_CPU_TYPE_arm = cortex-m3`
			`QEMU_FLAGS_arm = -cpu $(QEMU_CPU_TYPE_arm) \`
qemu: disable vga and avoid annoying warning message supress warning message about missing rom file qemu-system-i386: pci_add_option_rom: \ failed to find romfile "vgabios-cirrus.bin" Change-Id: I335369cf40b0891cbc96b4ff4d9e5e2f4740ee96 Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2016-05-05 10:55:39 -04:00			`-machine lm3s6965evb -nographic -vga none`
Move scripts/Makefile.<arch>preparch to arch/<arch> 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> 2015-08-23 11:22:40 -04:00			`QEMU_arm = qemu-system-arm`

			`export QEMU_FLAGS_arm QEMU_arm`