1# 2# arch/x86/boot/Makefile 3# 4# This file is subject to the terms and conditions of the GNU General Public 5# License. See the file "COPYING" in the main directory of this archive 6# for more details. 7# 8# Copyright (C) 1994 by Linus Torvalds 9# 10 11# ROOT_DEV specifies the default root-device when making the image. 12# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case 13# the default of FLOPPY is used by 'build'. 14 15ROOT_DEV := CURRENT 16 17# If you want to preset the SVGA mode, uncomment the next line and 18# set SVGA_MODE to whatever number you want. 19# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. 20# The number is the same as you would ordinarily press at bootup. 21 22SVGA_MODE := -DSVGA_MODE=NORMAL_VGA 23 24# If you want the RAM disk device, define this to be the size in blocks. 25 26#RAMDISK := -DRAMDISK=512 27 28targets := vmlinux.bin setup.bin setup.elf zImage bzImage 29subdir- := compressed 30 31setup-y += a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o 32setup-y += header.o main.o mca.o memory.o pm.o pmjump.o 33setup-y += printf.o string.o tty.o video.o version.o voyager.o 34 35# The link order of the video-*.o modules can matter. In particular, 36# video-vga.o *must* be listed first, followed by video-vesa.o. 37# Hardware-specific drivers should follow in the order they should be 38# probed, and video-bios.o should typically be last. 39setup-y += video-vga.o 40setup-y += video-vesa.o 41setup-y += video-bios.o 42 43targets += $(setup-y) 44hostprogs-y := tools/build 45 46HOSTCFLAGS_build.o := $(LINUXINCLUDE) 47 48# --------------------------------------------------------------------------- 49 50# How to compile the 16-bit code. Note we always compile for -march=i386, 51# that way we can complain to the user if the CPU is insufficient. 52cflags-i386 := 53cflags-x86_64 := -m32 54KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ 55 $(cflags-$(ARCH)) \ 56 -Wall -Wstrict-prototypes \ 57 -march=i386 -mregparm=3 \ 58 -include $(srctree)/$(src)/code16gcc.h \ 59 -fno-strict-aliasing -fomit-frame-pointer \ 60 $(call cc-option, -ffreestanding) \ 61 $(call cc-option, -fno-toplevel-reorder,\ 62 $(call cc-option, -fno-unit-at-a-time)) \ 63 $(call cc-option, -fno-stack-protector) \ 64 $(call cc-option, -mpreferred-stack-boundary=2) 65KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 66 67$(obj)/zImage: IMAGE_OFFSET := 0x1000 68$(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK) 69$(obj)/bzImage: IMAGE_OFFSET := 0x100000 70$(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__ 71$(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ 72$(obj)/bzImage: BUILDFLAGS := -b 73 74quiet_cmd_image = BUILD $@ 75cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \ 76 $(obj)/vmlinux.bin $(ROOT_DEV) > $@ 77 78$(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \ 79 $(obj)/vmlinux.bin $(obj)/tools/build FORCE 80 $(call if_changed,image) 81 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' 82 83$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 84 $(call if_changed,objcopy) 85 86SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 87 88LDFLAGS_setup.elf := -T 89$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 90 $(call if_changed,ld) 91 92OBJCOPYFLAGS_setup.bin := -O binary 93 94$(obj)/setup.bin: $(obj)/setup.elf FORCE 95 $(call if_changed,objcopy) 96 97$(obj)/compressed/vmlinux: FORCE 98 $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ 99 100# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel 101FDARGS = 102# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel 103FDINITRD = 104 105image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 106 107$(obj)/mtools.conf: $(src)/mtools.conf.in 108 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 109 110# This requires write access to /dev/fd0 111zdisk: $(BOOTIMAGE) $(obj)/mtools.conf 112 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 113 syslinux /dev/fd0 ; sync 114 echo '$(image_cmdline)' | \ 115 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 116 if [ -f '$(FDINITRD)' ] ; then \ 117 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 118 fi 119 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync 120 121# These require being root or having syslinux 2.02 or higher installed 122fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf 123 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 124 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 125 syslinux $(obj)/fdimage ; sync 126 echo '$(image_cmdline)' | \ 127 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 128 if [ -f '$(FDINITRD)' ] ; then \ 129 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 130 fi 131 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync 132 133fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf 134 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 135 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 136 syslinux $(obj)/fdimage ; sync 137 echo '$(image_cmdline)' | \ 138 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 139 if [ -f '$(FDINITRD)' ] ; then \ 140 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 141 fi 142 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync 143 144isoimage: $(BOOTIMAGE) 145 -rm -rf $(obj)/isoimage 146 mkdir $(obj)/isoimage 147 for i in lib lib64 share end ; do \ 148 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 149 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 150 break ; \ 151 fi ; \ 152 if [ $$i = end ] ; then exit 1 ; fi ; \ 153 done 154 cp $(BOOTIMAGE) $(obj)/isoimage/linux 155 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 156 if [ -f '$(FDINITRD)' ] ; then \ 157 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 158 fi 159 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 160 -no-emul-boot -boot-load-size 4 -boot-info-table \ 161 $(obj)/isoimage 162 rm -rf $(obj)/isoimage 163 164zlilo: $(BOOTIMAGE) 165 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 166 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 167 cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz 168 cp System.map $(INSTALL_PATH)/ 169 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 170 171install: 172 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" 173