43 lines
1.2 KiB
Makefile
43 lines
1.2 KiB
Makefile
PERF_OPT=$(if $(filter -Os,$(KBUILD_CFLAGS)),,y)
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cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
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ifeq ($(PERF_OPT),y)
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cflags-y += -DPERF_OPT
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else
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PREFERRED_STACK_BOUNDARY = y
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endif
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ifeq ($(COMPILER),clang)
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biarch := $(call cc-option,-m32)
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KBUILD_AFLAGS += $(biarch)
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KBUILD_CFLAGS += $(biarch)
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else
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cflags-$(PREFERRED_STACK_BOUNDARY) += $(call cc-option,-mpreferred-stack-boundary=2)
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endif
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cflags-$(CONFIG_LTO) += $(call cc-option,-flto,)
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ifneq ($(CONFIG_SSE_FP_MATH),y)
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cflags-y += -mno-sse
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endif
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arch-$(CONFIG_CPU_ATOM) += $(call cc-option,-march=atom) \
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$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
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arch-$(CONFIG_CPU_MINUTEIA) += $(call cc-option,-march=pentium)
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KBUILD_CFLAGS += $(cflags-y) $(arch-y)
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KBUILD_AFLAGS += $(arch-y)
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QEMU_BIOS ?= /usr/share/qemu
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QEMU_CPU_TYPE_x86 = qemu32
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QEMU_X86_NO_REBOOT_y =
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QEMU_X86_NO_REBOOT_ = -no-reboot
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QEMU_FLAGS_x86 = -m 32 -cpu $(QEMU_CPU_TYPE_x86) \
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$(QEMU_X86_NO_REBOOT_$(CONFIG_REBOOT)) \
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-nographic -display none -net none \
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-clock dynticks -no-acpi -balloon none \
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-L $(QEMU_BIOS) -bios bios.bin \
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-machine type=pc-0.14
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QEMU_x86 = qemu-system-i386
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export QEMU_FLAGS_x86 QEMU_x86 QEMU_CPU_TYPE_x86
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