| 1 | # |
| 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 | |
| 24 | # Fill in SRCARCH |
| 25 | SRCARCH := x86 |
| 26 | |
| 27 | LDFLAGS := -m elf_x86_64 |
| 28 | OBJCOPYFLAGS := -O binary -R .note -R .comment -S |
| 29 | LDFLAGS_vmlinux := |
| 30 | CHECKFLAGS += -D__x86_64__ -m64 |
| 31 | |
| 32 | cflags-y := |
| 33 | cflags-kernel-y := |
| 34 | cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) |
| 35 | cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona) |
| 36 | # gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it |
| 37 | # will eventually. Use -mtune=generic as fallback |
| 38 | cflags-$(CONFIG_MCORE2) += \ |
| 39 | $(call cc-option,-march=core2,$(call cc-option,-mtune=generic)) |
| 40 | cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic) |
| 41 | |
| 42 | cflags-y += -m64 |
| 43 | cflags-y += -mno-red-zone |
| 44 | cflags-y += -mcmodel=kernel |
| 45 | cflags-y += -pipe |
| 46 | cflags-y += -Wno-sign-compare |
| 47 | cflags-y += -fno-asynchronous-unwind-tables |
| 48 | ifneq ($(CONFIG_DEBUG_INFO),y) |
| 49 | # -fweb shrinks the kernel a bit, but the difference is very small |
| 50 | # it also messes up debugging, so don't use it for now. |
| 51 | #cflags-y += $(call cc-option,-fweb) |
| 52 | endif |
| 53 | # -funit-at-a-time shrinks the kernel .text considerably |
| 54 | # unfortunately it makes reading oopses harder. |
| 55 | cflags-y += $(call cc-option,-funit-at-a-time) |
| 56 | # prevent gcc from generating any FP code by mistake |
| 57 | cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) |
| 58 | # this works around some issues with generating unwind tables in older gccs |
| 59 | # newer gccs do it by default |
| 60 | cflags-y += -maccumulate-outgoing-args |
| 61 | |
| 62 | # do binutils support CFI? |
| 63 | cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) |
| 64 | AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) |
| 65 | |
| 66 | # is .cfi_signal_frame supported too? |
| 67 | cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) |
| 68 | AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) |
| 69 | |
| 70 | cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector ) |
| 71 | cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all ) |
| 72 | |
| 73 | KBUILD_CFLAGS += $(cflags-y) |
| 74 | CFLAGS_KERNEL += $(cflags-kernel-y) |
| 75 | AFLAGS += -m64 |
| 76 | |
| 77 | head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task_64.o |
| 78 | |
| 79 | libs-y += arch/x86/lib/ |
| 80 | core-y += arch/x86/kernel/ \ |
| 81 | arch/x86/mm/ \ |
| 82 | arch/x86/crypto/ \ |
| 83 | arch/x86/vdso/ |
| 84 | core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/ |
| 85 | drivers-$(CONFIG_PCI) += arch/x86/pci/ |
| 86 | drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/ |
| 87 | |
| 88 | boot := arch/x86/boot |
| 89 | |
| 90 | PHONY += bzImage bzlilo install archmrproper \ |
| 91 | fdimage fdimage144 fdimage288 isoimage archclean |
| 92 | |
| 93 | #Default target when executing "make" |
| 94 | all: bzImage |
| 95 | |
| 96 | BOOTIMAGE := arch/x86/boot/bzImage |
| 97 | KBUILD_IMAGE := $(BOOTIMAGE) |
| 98 | |
| 99 | bzImage: vmlinux |
| 100 | $(Q)mkdir -p $(objtree)/arch/x86_64/boot |
| 101 | $(Q)ln -fsn $(objtree)/arch/x86/boot/bzImage $(objtree)/arch/x86_64/boot/bzImage |
| 102 | $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE) |
| 103 | |
| 104 | bzlilo: vmlinux |
| 105 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo |
| 106 | |
| 107 | bzdisk: vmlinux |
| 108 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk |
| 109 | |
| 110 | fdimage fdimage144 fdimage288 isoimage: vmlinux |
| 111 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ |
| 112 | |
| 113 | install: |
| 114 | $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ |
| 115 | |
| 116 | archclean: |
| 117 | $(Q)rm -rf $(objtree)/arch/x86_64/boot |
| 118 | $(Q)$(MAKE) $(clean)=$(boot) |
| 119 | |
| 120 | define archhelp |
| 121 | echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)' |
| 122 | echo ' install - Install kernel using' |
| 123 | echo ' (your) ~/bin/installkernel or' |
| 124 | echo ' (distribution) /sbin/installkernel or' |
| 125 | echo ' install to $$(INSTALL_PATH) and run lilo' |
| 126 | echo ' bzdisk - Create a boot floppy in /dev/fd0' |
| 127 | echo ' fdimage - Create a boot floppy image' |
| 128 | echo ' isoimage - Create a boot CD-ROM image' |
| 129 | endef |
| 130 | |
| 131 | CLEAN_FILES += arch/$(ARCH)/boot/fdimage \ |
| 132 | arch/$(ARCH)/boot/image.iso \ |
| 133 | arch/$(ARCH)/boot/mtools.conf |
| 134 | |
| 135 | |