37 lines
1014 B
Makefile
37 lines
1014 B
Makefile
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# -*- makefile -*-
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# Copyright 2016 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Minute-IA core build
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#
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# Select Minute-IA bare-metal toolchain
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$(call set-option,CROSS_COMPILE,$(CROSS_COMPILE_i386),\
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/opt/coreboot-sdk/bin/i386-elf-)
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# FPU compilation flags
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CFLAGS_FPU-$(CONFIG_FPU)=
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# CPU specific compilation flags
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CFLAGS_CPU+=-O2 -fomit-frame-pointer -mno-accumulate-outgoing-args \
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-ffunction-sections -fdata-sections \
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-fno-builtin-printf -fno-builtin-sprintf \
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-fno-stack-protector -gdwarf-2 -fno-common -ffreestanding \
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-minline-all-stringops -fno-strict-aliasing
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CFLAGS_CPU+=$(CFLAGS_FPU-y)
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ifneq ($(CONFIG_LTO),)
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CFLAGS_CPU+=-flto
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LDFLAGS_EXTRA+=-flto
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endif
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core-y=cpu.o init.o interrupts.o
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core-$(CONFIG_COMMON_PANIC_OUTPUT)+=panic.o
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core-$(CONFIG_COMMON_RUNTIME)+=switch.o task.o
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core-$(CONFIG_MPU)+=mpu.o
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# for 64bit division
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LDFLAGS_EXTRA+=-static-libgcc -lgcc
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