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Diffstat (limited to 'arch/x86/Makefile_64')
| -rw-r--r-- | arch/x86/Makefile_64 | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/arch/x86/Makefile_64 b/arch/x86/Makefile_64 new file mode 100644 index 000000000000..57e714a47af7 --- /dev/null +++ b/arch/x86/Makefile_64 @@ -0,0 +1,144 @@ +# +# 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/$(ARCH)/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/$(ARCH)/boot/fdimage \ + arch/$(ARCH)/boot/image.iso \ + arch/$(ARCH)/boot/mtools.conf + + |