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 $
24 LDFLAGS := -m elf_x86_64
25 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
28 CHECKFLAGS += -D__x86_64__ -m64
30 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
31 cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
32 cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
36 CFLAGS += -mno-red-zone
37 CFLAGS += -mcmodel=kernel
39 cflags-$(CONFIG_REORDER) += -ffunction-sections
40 # this makes reading assembly source easier, but produces worse code
41 # actually it makes the kernel smaller too.
42 CFLAGS += -fno-reorder-blocks
43 CFLAGS += -Wno-sign-compare
44 ifneq ($(CONFIG_UNWIND_INFO),y)
45 CFLAGS += -fno-asynchronous-unwind-tables
47 ifneq ($(CONFIG_DEBUG_INFO),y)
48 # -fweb shrinks the kernel a bit, but the difference is very small
49 # it also messes up debugging, so don't use it for now.
50 #CFLAGS += $(call cc-option,-fweb)
52 # -funit-at-a-time shrinks the kernel .text considerably
53 # unfortunately it makes reading oopses harder.
54 CFLAGS += $(call cc-option,-funit-at-a-time)
55 # prevent gcc from generating any FP code by mistake
56 CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
60 head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
62 libs-y += arch/x86_64/lib/
63 core-y += arch/x86_64/kernel/ \
66 core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
67 drivers-$(CONFIG_PCI) += arch/x86_64/pci/
68 drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
70 boot := arch/x86_64/boot
72 PHONY += bzImage bzlilo install archmrproper \
73 fdimage fdimage144 fdimage288 archclean
75 #Default target when executing "make"
78 BOOTIMAGE := arch/x86_64/boot/bzImage
79 KBUILD_IMAGE := $(BOOTIMAGE)
82 $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
85 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
88 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
90 fdimage fdimage144 fdimage288: vmlinux
91 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
94 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
97 $(Q)$(MAKE) $(clean)=$(boot)
100 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
101 echo ' install - Install kernel using'
102 echo ' (your) ~/bin/installkernel or'
103 echo ' (distribution) /sbin/installkernel or'
104 echo ' install to $$(INSTALL_PATH) and run lilo'
107 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf