| # |
| # x86_64 Makefile |
| # |
| # This file is included by the global makefile so that you can add your own |
| # architecture-specific flags and dependencies. Remember to do have actions |
| # for "archclean" and "archdep" for cleaning up and making dependencies for |
| # this architecture |
| # |
| # This file is subject to the terms and conditions of the GNU General Public |
| # License. See the file "COPYING" in the main directory of this archive |
| # for more details. |
| # |
| # Copyright (C) 1994 by Linus Torvalds |
| # |
| # 19990713 Artur Skawina <skawina@geocities.com> |
| # Added '-march' and '-mpreferred-stack-boundary' support |
| # 20000913 Pavel Machek <pavel@suse.cz> |
| # Converted for x86_64 architecture |
| # 20010105 Andi Kleen, add IA32 compiler. |
| # ....and later removed it again.... |
| # |
| # $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $ |
| |
| # BITS is used as extension for files which are available in a 32 bit |
| # and a 64 bit version to simplify shared Makefiles. |
| # e.g.: obj-y += foo_$(BITS).o |
| BITS := 64 |
| export BITS |
| |
| LDFLAGS := -m elf_x86_64 |
| OBJCOPYFLAGS := -O binary -R .note -R .comment -S |
| LDFLAGS_vmlinux := |
| CHECKFLAGS += -D__x86_64__ -m64 |
| |
| cflags-y := |
| cflags-kernel-y := |
| cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) |
| cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona) |
| # gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it |
| # will eventually. Use -mtune=generic as fallback |
| cflags-$(CONFIG_MCORE2) += \ |
| $(call cc-option,-march=core2,$(call cc-option,-mtune=generic)) |
| cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic) |
| |
| cflags-y += -m64 |
| cflags-y += -mno-red-zone |
| cflags-y += -mcmodel=kernel |
| cflags-y += -pipe |
| cflags-y += -Wno-sign-compare |
| cflags-y += -fno-asynchronous-unwind-tables |
| ifneq ($(CONFIG_DEBUG_INFO),y) |
| # -fweb shrinks the kernel a bit, but the difference is very small |
| # it also messes up debugging, so don't use it for now. |
| #cflags-y += $(call cc-option,-fweb) |
| endif |
| # -funit-at-a-time shrinks the kernel .text considerably |
| # unfortunately it makes reading oopses harder. |
| cflags-y += $(call cc-option,-funit-at-a-time) |
| # prevent gcc from generating any FP code by mistake |
| cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) |
| # this works around some issues with generating unwind tables in older gccs |
| # newer gccs do it by default |
| cflags-y += -maccumulate-outgoing-args |
| |
| # do binutils support CFI? |
| cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) |
| KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) |
| |
| # is .cfi_signal_frame supported too? |
| cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) |
| KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) |
| |
| cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector ) |
| cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all ) |
| |
| KBUILD_CFLAGS += $(cflags-y) |
| CFLAGS_KERNEL += $(cflags-kernel-y) |
| KBUILD_AFLAGS += -m64 |
| |
| head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task.o |
| |
| libs-y += arch/x86/lib/ |
| core-y += arch/x86/kernel/ \ |
| arch/x86/mm/ \ |
| arch/x86/crypto/ \ |
| arch/x86/vdso/ |
| core-$(CONFIG_IA32_EMULATION) += arch/x86/ia32/ |
| drivers-$(CONFIG_PCI) += arch/x86/pci/ |
| drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/ |
| |
| boot := arch/x86/boot |
| |
| PHONY += bzImage bzlilo install archmrproper \ |
| fdimage fdimage144 fdimage288 isoimage archclean |
| |
| #Default target when executing "make" |
| all: bzImage |
| |
| BOOTIMAGE := arch/x86/boot/bzImage |
| KBUILD_IMAGE := $(BOOTIMAGE) |
| |
| bzImage: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE) |
| $(Q)mkdir -p $(objtree)/arch/x86_64/boot |
| $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/x86_64/boot/bzImage |
| |
| bzlilo: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo |
| |
| bzdisk: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk |
| |
| fdimage fdimage144 fdimage288 isoimage: vmlinux |
| $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ |
| |
| install: vdso_install |
| $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@ |
| |
| vdso_install: |
| ifeq ($(CONFIG_IA32_EMULATION),y) |
| $(Q)$(MAKE) $(build)=arch/x86/ia32 $@ |
| endif |
| $(Q)$(MAKE) $(build)=arch/x86/vdso $@ |
| |
| archclean: |
| $(Q)rm -rf $(objtree)/arch/x86_64/boot |
| $(Q)$(MAKE) $(clean)=$(boot) |
| |
| define archhelp |
| echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)' |
| echo ' install - Install kernel using' |
| echo ' (your) ~/bin/installkernel or' |
| echo ' (distribution) /sbin/installkernel or' |
| echo ' install to $$(INSTALL_PATH) and run lilo' |
| echo ' bzdisk - Create a boot floppy in /dev/fd0' |
| echo ' fdimage - Create a boot floppy image' |
| echo ' isoimage - Create a boot CD-ROM image' |
| endef |
| |
| CLEAN_FILES += arch/x86/boot/fdimage \ |
| arch/x86/boot/image.iso \ |
| arch/x86/boot/mtools.conf |
| |
| |
