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# Changed by many, many contributors over the years. 10# 11 12# ROOT_DEV specifies the default root-device when making the image. 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 24targets := vmlinux.bin setup.bin setup.elf bzImage 25targets += fdimage fdimage144 fdimage288 image.iso mtools.conf 26subdir- := compressed 27 28setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o 29setup-y += early_serial_console.o edd.o header.o main.o mca.o memory.o 30setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o 31setup-y += video-mode.o version.o 32setup-$(CONFIG_X86_APM_BOOT) += apm.o 33 34# The link order of the video-*.o modules can matter. In particular, 35# video-vga.o *must* be listed first, followed by video-vesa.o. 36# Hardware-specific drivers should follow in the order they should be 37# probed, and video-bios.o should typically be last. 38setup-y += video-vga.o 39setup-y += video-vesa.o 40setup-y += video-bios.o 41 42targets += $(setup-y) 43hostprogs-y := mkcpustr tools/build 44 45HOST_EXTRACFLAGS += $(LINUXINCLUDE) 46 47$(obj)/cpu.o: $(obj)/cpustr.h 48 49quiet_cmd_cpustr = CPUSTR $@ 50 cmd_cpustr = $(obj)/mkcpustr > $@ 51targets += cpustr.h 52$(obj)/cpustr.h: $(obj)/mkcpustr FORCE 53 $(call if_changed,cpustr) 54 55# --------------------------------------------------------------------------- 56 57# How to compile the 16-bit code. Note we always compile for -march=i386, 58# that way we can complain to the user if the CPU is insufficient. 59KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ 60 -DDISABLE_BRANCH_PROFILING \ 61 -Wall -Wstrict-prototypes \ 62 -march=i386 -mregparm=3 \ 63 -include $(srctree)/$(src)/code16gcc.h \ 64 -fno-strict-aliasing -fomit-frame-pointer \ 65 $(call cc-option, -ffreestanding) \ 66 $(call cc-option, -fno-toplevel-reorder,\ 67 $(call cc-option, -fno-unit-at-a-time)) \ 68 $(call cc-option, -fno-stack-protector) \ 69 $(call cc-option, -mpreferred-stack-boundary=2) 70KBUILD_CFLAGS += $(call cc-option, -m32) 71KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 72GCOV_PROFILE := n 73 74$(obj)/bzImage: asflags-y := $(SVGA_MODE) 75 76quiet_cmd_image = BUILD $@ 77cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \ 78 $(ROOT_DEV) > $@ 79 80$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 81 $(call if_changed,image) 82 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' 83 84OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 85$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 86 $(call if_changed,objcopy) 87 88SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 89 90sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p' 91 92quiet_cmd_voffset = VOFFSET $@ 93 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@ 94 95targets += voffset.h 96$(obj)/voffset.h: vmlinux FORCE 97 $(call if_changed,voffset) 98 99sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p' 100 101quiet_cmd_zoffset = ZOFFSET $@ 102 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 103 104targets += zoffset.h 105$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 106 $(call if_changed,zoffset) 107 108 109AFLAGS_header.o += -I$(obj) 110$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h 111 112LDFLAGS_setup.elf := -T 113$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 114 $(call if_changed,ld) 115 116OBJCOPYFLAGS_setup.bin := -O binary 117$(obj)/setup.bin: $(obj)/setup.elf FORCE 118 $(call if_changed,objcopy) 119 120$(obj)/compressed/vmlinux: FORCE 121 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 122 123# Set this if you want to pass append arguments to the 124# bzdisk/fdimage/isoimage kernel 125FDARGS = 126# Set this if you want an initrd included with the 127# bzdisk/fdimage/isoimage kernel 128FDINITRD = 129 130image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 131 132$(obj)/mtools.conf: $(src)/mtools.conf.in 133 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 134 135# This requires write access to /dev/fd0 136bzdisk: $(obj)/bzImage $(obj)/mtools.conf 137 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 138 syslinux /dev/fd0 ; sync 139 echo '$(image_cmdline)' | \ 140 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 141 if [ -f '$(FDINITRD)' ] ; then \ 142 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 143 fi 144 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 145 146# These require being root or having syslinux 2.02 or higher installed 147fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 148 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 149 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 150 syslinux $(obj)/fdimage ; sync 151 echo '$(image_cmdline)' | \ 152 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 153 if [ -f '$(FDINITRD)' ] ; then \ 154 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 155 fi 156 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 157 158fdimage288: $(obj)/bzImage $(obj)/mtools.conf 159 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 160 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 161 syslinux $(obj)/fdimage ; sync 162 echo '$(image_cmdline)' | \ 163 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 164 if [ -f '$(FDINITRD)' ] ; then \ 165 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 166 fi 167 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 168 169isoimage: $(obj)/bzImage 170 -rm -rf $(obj)/isoimage 171 mkdir $(obj)/isoimage 172 for i in lib lib64 share end ; do \ 173 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 174 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 175 break ; \ 176 fi ; \ 177 if [ $$i = end ] ; then exit 1 ; fi ; \ 178 done 179 cp $(obj)/bzImage $(obj)/isoimage/linux 180 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 181 if [ -f '$(FDINITRD)' ] ; then \ 182 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 183 fi 184 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 185 -no-emul-boot -boot-load-size 4 -boot-info-table \ 186 $(obj)/isoimage 187 isohybrid $(obj)/image.iso 2>/dev/null || true 188 rm -rf $(obj)/isoimage 189 190bzlilo: $(obj)/bzImage 191 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 192 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 193 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 194 cp System.map $(INSTALL_PATH)/ 195 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 196 197install: 198 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 199 System.map "$(INSTALL_PATH)" 200