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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# x86_64/Makefile
3#
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
7# this architecture
8#
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
11# for more details.
12#
13# Copyright (C) 1994 by Linus Torvalds
14#
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....
21#
22# $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024LDFLAGS := -m elf_x86_64
25OBJCOPYFLAGS := -O binary -R .note -R .comment -S
Eric W. Biederman5ded01e2005-06-25 14:57:48 -070026LDFLAGS_vmlinux :=
Linus Torvalds1da177e2005-04-16 15:20:36 -070027CHECKFLAGS += -D__x86_64__ -m64
28
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020029cflags-y :=
Sergey Vlasov409f89e2006-06-26 13:59:32 +020030cflags-kernel-y :=
Linus Torvalds1da177e2005-04-16 15:20:36 -070031cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
32cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
Andi Kleen71381992006-12-07 02:14:09 +010033# gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it
34# will eventually. Use -mtune=generic as fallback
35cflags-$(CONFIG_MCORE2) += \
36 $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
Andi Kleendca99a32006-03-25 16:29:06 +010037cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020039cflags-y += -m64
40cflags-y += -mno-red-zone
41cflags-y += -mcmodel=kernel
42cflags-y += -pipe
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020043cflags-y += -Wno-sign-compare
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020044cflags-y += -fno-asynchronous-unwind-tables
Jan Beulich6e0c47e2006-01-11 22:42:05 +010045ifneq ($(CONFIG_DEBUG_INFO),y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070046# -fweb shrinks the kernel a bit, but the difference is very small
47# it also messes up debugging, so don't use it for now.
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020048#cflags-y += $(call cc-option,-fweb)
Linus Torvalds1da177e2005-04-16 15:20:36 -070049endif
50# -funit-at-a-time shrinks the kernel .text considerably
51# unfortunately it makes reading oopses harder.
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020052cflags-y += $(call cc-option,-funit-at-a-time)
Linus Torvalds1da177e2005-04-16 15:20:36 -070053# prevent gcc from generating any FP code by mistake
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020054cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
Andi Kleencdfce1f2006-10-21 18:37:01 +020055# this works around some issues with generating unwind tables in older gccs
56# newer gccs do it by default
57cflags-y += -maccumulate-outgoing-args
58
Andi Kleene2414912006-09-26 10:52:30 +020059# do binutils support CFI?
60cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
61AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Jan Beulichadf14232006-09-26 10:52:41 +020063# is .cfi_signal_frame supported too?
64cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
65AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
66
Ingo Molnarccf9ff52006-11-16 11:49:16 +010067cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector )
68cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all )
Arjan van de Ven4f7fd4d2006-09-26 10:52:39 +020069
Sam Ravnborgbbd3aff2006-04-07 19:50:28 +020070CFLAGS += $(cflags-y)
Sergey Vlasov409f89e2006-06-26 13:59:32 +020071CFLAGS_KERNEL += $(cflags-kernel-y)
Andi Kleenbb334212006-01-11 22:43:54 +010072AFLAGS += -m64
73
Linus Torvalds1da177e2005-04-16 15:20:36 -070074head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
75
76libs-y += arch/x86_64/lib/
Andreas Steinmetza2a892a2005-07-06 13:55:00 -070077core-y += arch/x86_64/kernel/ \
78 arch/x86_64/mm/ \
Andi Kleen2aae9502007-07-21 17:10:01 +020079 arch/x86_64/crypto/ \
80 arch/x86_64/vdso/
Linus Torvalds1da177e2005-04-16 15:20:36 -070081core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
82drivers-$(CONFIG_PCI) += arch/x86_64/pci/
83drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
84
85boot := arch/x86_64/boot
86
Paul Smith4f193362006-03-05 17:14:10 -050087PHONY += bzImage bzlilo install archmrproper \
H. Peter Anvin841b8a42006-03-26 01:36:59 -080088 fdimage fdimage144 fdimage288 isoimage archclean
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
90#Default target when executing "make"
91all: bzImage
92
93BOOTIMAGE := arch/x86_64/boot/bzImage
94KBUILD_IMAGE := $(BOOTIMAGE)
95
96bzImage: vmlinux
97 $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
98
99bzlilo: vmlinux
100 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
101
102bzdisk: vmlinux
103 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
104
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800105fdimage fdimage144 fdimage288 isoimage: vmlinux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
107
H. Peter Anvin0d20bab2006-01-07 17:38:39 -0800108install:
109 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111archclean:
112 $(Q)$(MAKE) $(clean)=$(boot)
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114define archhelp
115 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
116 echo ' install - Install kernel using'
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800117 echo ' (your) ~/bin/installkernel or'
118 echo ' (distribution) /sbin/installkernel or'
119 echo ' install to $$(INSTALL_PATH) and run lilo'
120 echo ' bzdisk - Create a boot floppy in /dev/fd0'
121 echo ' fdimage - Create a boot floppy image'
122 echo ' isoimage - Create a boot CD-ROM image'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123endef
124
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800125CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
126 arch/$(ARCH)/boot/image.iso \
127 arch/$(ARCH)/boot/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128
129