4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies. Remember to do have actions
6 # for "archclean" and "archdep" for cleaning up and making dependencies for
9 # This file is subject to the terms and conditions of the GNU General Public
10 # License. See the file "COPYING" in the main directory of this archive
13 # Copyright (C) 1994 by Linus Torvalds
15 # 19990713 Artur Skawina <skawina@geocities.com>
16 # Added '-march' and '-mpreferred-stack-boundary' support
17 # 20000913 Pavel Machek <pavel@suse.cz>
18 # Converted for x86_64 architecture
19 # 20010105 Andi Kleen, add IA32 compiler.
20 # ....and later removed it again....
22 # $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
25 # early bootup linking needs 32bit. You can either use real 32bit tools
26 # here or 64bit tools in 32bit mode.
28 IA32_CC := $(CC) $(CPPFLAGS) -m32 -O2 -fomit-frame-pointer
29 IA32_LD := $(LD) -m elf_i386
30 IA32_AS := $(CC) $(AFLAGS) -m32 -Wa,--32 -traditional -c
31 IA32_OBJCOPY := $(CROSS_COMPILE)objcopy
32 IA32_CPP := $(CROSS_COMPILE)gcc -m32 -E
33 export IA32_CC IA32_LD IA32_AS IA32_OBJCOPY IA32_CPP
36 LDFLAGS := -m elf_x86_64
37 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
38 LDFLAGS_vmlinux := -e stext
40 CFLAGS += -mno-red-zone
41 CFLAGS += -mcmodel=kernel
43 # this makes reading assembly source easier, but produces worse code
44 CFLAGS += -fno-reorder-blocks
45 # should lower this a lot and see how much .text is saves
46 CFLAGS += -finline-limit=2000
47 CFLAGS += -Wno-sign-compare
49 # don't enable this when you use kgdb:
50 ifneq ($(CONFIG_X86_REMOTE_DEBUG),y)
51 CFLAGS += -fno-asynchronous-unwind-tables
54 head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
56 libs-y += arch/x86_64/lib/
57 core-y += arch/x86_64/kernel/ arch/x86_64/mm/
58 core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
59 drivers-$(CONFIG_PCI) += arch/x86_64/pci/
60 drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
62 boot := arch/x86_64/boot
64 .PHONY: bzImage bzlilo install archmrproper \
65 fdimage fdimage144 fdimage288 archclean
67 #Default target when executing "make"
70 BOOTIMAGE := arch/x86_64/boot/bzImage
73 $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
76 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
79 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
81 install fdimage fdimage144 fdimage288: vmlinux
82 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
85 $(Q)$(MAKE) $(clean)=$(boot)
87 prepare: include/asm-$(ARCH)/offset.h
89 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
92 include/asm-$(ARCH)/offset.h: arch/$(ARCH)/kernel/asm-offsets.s
93 $(call filechk,gen-asm-offsets)
95 CLEAN_FILES += include/asm-$(ARCH)/offset.h
98 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
99 echo ' install - Install kernel using'
100 echo ' (your) ~/bin/installkernel or'
101 echo ' (distribution) /sbin/installkernel or'
102 echo ' install to $$(INSTALL_PATH) and run lilo'
105 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf