120 строки
3.8 KiB
Makefile
120 строки
3.8 KiB
Makefile
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# x86_64/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1994 by Linus Torvalds
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#
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# 19990713 Artur Skawina <skawina@geocities.com>
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# Added '-march' and '-mpreferred-stack-boundary' support
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# 20000913 Pavel Machek <pavel@suse.cz>
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# Converted for x86_64 architecture
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# 20010105 Andi Kleen, add IA32 compiler.
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# ....and later removed it again....
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#
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# $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
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#
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# early bootup linking needs 32bit. You can either use real 32bit tools
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# here or 64bit tools in 32bit mode.
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#
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IA32_CC := $(CC) $(CPPFLAGS) -m32 -O2 -fomit-frame-pointer
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IA32_LD := $(LD) -m elf_i386
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IA32_AS := $(CC) $(AFLAGS) -m32 -Wa,--32 -traditional -c
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IA32_OBJCOPY := $(CROSS_COMPILE)objcopy
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IA32_CPP := $(CROSS_COMPILE)gcc -m32 -E
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export IA32_CC IA32_LD IA32_AS IA32_OBJCOPY IA32_CPP
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LDFLAGS := -m elf_x86_64
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OBJCOPYFLAGS := -O binary -R .note -R .comment -S
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LDFLAGS_vmlinux := -e stext
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CHECKFLAGS += -D__x86_64__ -m64
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cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
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cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
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CFLAGS += $(cflags-y)
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CFLAGS += -mno-red-zone
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CFLAGS += -mcmodel=kernel
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CFLAGS += -pipe
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# this makes reading assembly source easier, but produces worse code
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# actually it makes the kernel smaller too.
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CFLAGS += -fno-reorder-blocks
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CFLAGS += -Wno-sign-compare
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ifneq ($(CONFIG_DEBUG_INFO),y)
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CFLAGS += -fno-asynchronous-unwind-tables
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# -fweb shrinks the kernel a bit, but the difference is very small
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# it also messes up debugging, so don't use it for now.
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#CFLAGS += $(call cc-option,-fweb)
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endif
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# -funit-at-a-time shrinks the kernel .text considerably
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# unfortunately it makes reading oopses harder.
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CFLAGS += $(call cc-option,-funit-at-a-time)
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# prevent gcc from generating any FP code by mistake
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CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
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head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
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libs-y += arch/x86_64/lib/
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core-y += arch/x86_64/kernel/ arch/x86_64/mm/
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core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
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drivers-$(CONFIG_PCI) += arch/x86_64/pci/
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drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
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boot := arch/x86_64/boot
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.PHONY: bzImage bzlilo install archmrproper \
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fdimage fdimage144 fdimage288 archclean
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#Default target when executing "make"
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all: bzImage
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BOOTIMAGE := arch/x86_64/boot/bzImage
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KBUILD_IMAGE := $(BOOTIMAGE)
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bzImage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
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bzlilo: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
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bzdisk: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
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install fdimage fdimage144 fdimage288: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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prepare: include/asm-$(ARCH)/offset.h
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arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
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include/config/MARKER
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include/asm-$(ARCH)/offset.h: arch/$(ARCH)/kernel/asm-offsets.s
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$(call filechk,gen-asm-offsets)
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CLEAN_FILES += include/asm-$(ARCH)/offset.h
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define archhelp
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echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
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echo ' install - Install kernel using'
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echo ' (your) ~/bin/installkernel or'
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echo ' (distribution) /sbin/installkernel or'
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echo ' install to $$(INSTALL_PATH) and run lilo'
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endef
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CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf
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