2015-08-23 23:22:40 +08:00
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PERF_OPT=$(if $(filter -Os,$(KBUILD_CFLAGS)),,y)
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cflags-y += $(call cc-option,-ffunction-sections,) $(call cc-option,-fdata-sections,)
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cflags-$(PERF_OPT) += $(call cc-option,-mpreferred-stack-boundary=2)
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cflags-$(PERF_OPT) += -DPERF_OPT
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cflags-$(CONFIG_LTO) += $(call cc-option,-flto,)
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ifneq ($(CONFIG_PLATFORM_IA32_PCI),y)
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iSSE_FP_MATH_ = -mno-sse
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iSSE_FP_MATH = ${iSSE_FP_MATH_${CONFIG_SSE_FP_MATH}}
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endif
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cflags-y += $(iSSE_FP_MATH)
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arch-$(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_FLAGS_x86 = -m 32 -cpu $(QEMU_CPU_TYPE_x86) \
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-no-reboot -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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