1# 2# i386/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" cleaning up for this architecture. 7# 8# This file is subject to the terms and conditions of the GNU General Public 9# License. See the file "COPYING" in the main directory of this archive 10# for more details. 11# 12# Copyright (C) 1994 by Linus Torvalds 13# 14# 19990713 Artur Skawina <skawina@geocities.com> 15# Added '-march' and '-mpreferred-stack-boundary' support 16# 17# 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net> 18# Added support for GEODE CPU 19 20HAS_BIARCH := $(call cc-option-yn, -m32) 21ifeq ($(HAS_BIARCH),y) 22AS := $(AS) --32 23LD := $(LD) -m elf_i386 24CC := $(CC) -m32 25endif 26 27LDFLAGS := -m elf_i386 28OBJCOPYFLAGS := -O binary -R .note -R .comment -S 29ifdef CONFIG_RELOCATABLE 30LDFLAGS_vmlinux := --emit-relocs 31endif 32CHECKFLAGS += -D__i386__ 33 34CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return 35 36# prevent gcc from keeping the stack 16 byte aligned 37CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2) 38 39# CPU-specific tuning. Anything which can be shared with UML should go here. 40include $(srctree)/arch/i386/Makefile.cpu 41 42# temporary until string.h is fixed 43cflags-y += -ffreestanding 44 45# this works around some issues with generating unwind tables in older gccs 46# newer gccs do it by default 47cflags-y += -maccumulate-outgoing-args 48 49# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use 50# a lot more stack due to the lack of sharing of stacklots: 51CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;) 52 53# do binutils support CFI? 54cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) 55AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) 56 57# is .cfi_signal_frame supported too? 58cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) 59AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) 60 61CFLAGS += $(cflags-y) 62 63# Default subarch .c files 64mcore-y := mach-default 65 66# Voyager subarch support 67mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-i386/mach-voyager 68mcore-$(CONFIG_X86_VOYAGER) := mach-voyager 69 70# VISWS subarch support 71mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-i386/mach-visws 72mcore-$(CONFIG_X86_VISWS) := mach-visws 73 74# NUMAQ subarch support 75mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-i386/mach-numaq 76mcore-$(CONFIG_X86_NUMAQ) := mach-default 77 78# BIGSMP subarch support 79mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-i386/mach-bigsmp 80mcore-$(CONFIG_X86_BIGSMP) := mach-default 81 82#Summit subarch support 83mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit 84mcore-$(CONFIG_X86_SUMMIT) := mach-default 85 86# generic subarchitecture 87mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic 88mcore-$(CONFIG_X86_GENERICARCH) := mach-default 89core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/ 90 91# ES7000 subarch support 92mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-i386/mach-es7000 93mcore-$(CONFIG_X86_ES7000) := mach-default 94core-$(CONFIG_X86_ES7000) := arch/i386/mach-es7000/ 95 96# default subarch .h files 97mflags-y += -Iinclude/asm-i386/mach-default 98 99head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o 100 101libs-y += arch/i386/lib/ 102core-y += arch/i386/kernel/ \ 103 arch/i386/mm/ \ 104 arch/i386/$(mcore-y)/ \ 105 arch/i386/crypto/ 106drivers-$(CONFIG_MATH_EMULATION) += arch/i386/math-emu/ 107drivers-$(CONFIG_PCI) += arch/i386/pci/ 108# must be linked after kernel/ 109drivers-$(CONFIG_OPROFILE) += arch/i386/oprofile/ 110drivers-$(CONFIG_PM) += arch/i386/power/ 111 112CFLAGS += $(mflags-y) 113AFLAGS += $(mflags-y) 114 115boot := arch/i386/boot 116 117PHONY += zImage bzImage compressed zlilo bzlilo \ 118 zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install 119 120all: bzImage 121 122# KBUILD_IMAGE specify target image being built 123 KBUILD_IMAGE := $(boot)/bzImage 124zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage 125 126zImage bzImage: vmlinux 127 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE) 128 129compressed: zImage 130 131zlilo bzlilo: vmlinux 132 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo 133 134zdisk bzdisk: vmlinux 135 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk 136 137fdimage fdimage144 fdimage288 isoimage: vmlinux 138 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@ 139 140install: 141 $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install 142 143archclean: 144 $(Q)$(MAKE) $(clean)=arch/i386/boot 145 146define archhelp 147 echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)' 148 echo ' install - Install kernel using' 149 echo ' (your) ~/bin/installkernel or' 150 echo ' (distribution) /sbin/installkernel or' 151 echo ' install to $$(INSTALL_PATH) and run lilo' 152 echo ' bzdisk - Create a boot floppy in /dev/fd0' 153 echo ' fdimage - Create a boot floppy image' 154 echo ' isoimage - Create a boot CD-ROM image' 155endef 156 157CLEAN_FILES += arch/$(ARCH)/boot/fdimage \ 158 arch/$(ARCH)/boot/image.iso \ 159 arch/$(ARCH)/boot/mtools.conf 160