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zephyr/arch/x86/Makefile

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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 23:22:40 +08:00
PERF_OPT=$(if $(filter -Os,$(KBUILD_CFLAGS)),,y)
cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
build: fixed wrong logic for setting options during debug From old build system -DPERF_OPT was set with no optimisation, that was buggy and did not function as expected with new Makefiles. Change-Id: I21ebbe0e9314d0a25cb53c6455ff244252e44af0 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-09-24 03:54:28 +08:00
ifeq ($(PERF_OPT),y)
cflags-y += -DPERF_OPT
else
kbuild: add clang support Clang support already existed in the Makefiles but was not complete and some gcc options did not work with clang. Move those to be conditional on the compiler used to make clang work. To build with clang for x86: make CC=clang -C samples/microkernel/apps/hello_world/ You still need the gcc cross environment for various tools. For now, only x86 was tested. Change-Id: Ic5aeab4f80d312e1d1312a4a9fc885a43f760270 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-08-24 10:01:07 +08:00
PREFERRED_STACK_BOUNDARY = y
endif
ifeq ($(COMPILER),clang)
biarch := $(call cc-option,-m32)
KBUILD_AFLAGS += $(biarch)
KBUILD_CFLAGS += $(biarch)
else
cflags-$(PREFERRED_STACK_BOUNDARY) += $(call cc-option,-mpreferred-stack-boundary=2)
build: fixed wrong logic for setting options during debug From old build system -DPERF_OPT was set with no optimisation, that was buggy and did not function as expected with new Makefiles. Change-Id: I21ebbe0e9314d0a25cb53c6455ff244252e44af0 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-09-24 03:54:28 +08:00
endif
Move scripts/Makefile.<arch>preparch to arch/<arch> Follow the model of the Linux kernel for adding arch specific CFLAGS by using the Makefile and Kbuild combination in the arch/<arch> directory. This will also allow adding architecture specific targets and is easy to maintain when alongside the architecture. Change-Id: If51a78e8845baa71d9090c4a4f49fcd013354840 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-08-23 23:22:40 +08:00
cflags-$(CONFIG_LTO) += $(call cc-option,-flto,)
build: sse compile options should not depend on a platform Dependency on ia32_pci here is wrong, also simplify the variable handling and logic. Change-Id: I535e25e12283c288250b23327b2a8f698da31341 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2015-09-24 00:19:20 +08:00
ifneq ($(CONFIG_SSE_FP_MATH),y)
cflags-y += -mno-sse
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 23:22:40 +08:00
endif
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
include $(srctree)/arch/$(ARCH)/soc/$(SOC_NAME)/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 23:22:40 +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_CXXFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(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 23:22:40 +08:00
QEMU_BIOS ?= /usr/share/qemu
QEMU_CPU_TYPE_x86 = qemu32
x86/qemu: do not use -no-reboot flag when REBOOT=y The -no-reboot flag causes QEMU to exit when trying to reboot through the RST_CNT register. Change-Id: I01262753587d2fc4e787262a8368ddba39fdeaa1 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2015-10-02 03:30:04 +08:00
QEMU_X86_NO_REBOOT_y =
QEMU_X86_NO_REBOOT_ = -no-reboot
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 23:22:40 +08:00
QEMU_FLAGS_x86 = -m 32 -cpu $(QEMU_CPU_TYPE_x86) \
x86/qemu: do not use -no-reboot flag when REBOOT=y The -no-reboot flag causes QEMU to exit when trying to reboot through the RST_CNT register. Change-Id: I01262753587d2fc4e787262a8368ddba39fdeaa1 Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
2015-10-02 03:30:04 +08:00
$(QEMU_X86_NO_REBOOT_$(CONFIG_REBOOT)) \
-nographic -display none -net 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 23:22:40 +08:00
-clock dynticks -no-acpi -balloon none \
-L $(QEMU_BIOS) -bios bios.bin \
-machine type=pc-0.14
QEMU_x86 = qemu-system-i386
export QEMU_FLAGS_x86 QEMU_x86 QEMU_CPU_TYPE_x86