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# If you want to preset the SVGA mode, uncomment the next line and 13# set SVGA_MODE to whatever number you want. 14# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. 15# The number is the same as you would ordinarily press at bootup. 16 17SVGA_MODE := -DSVGA_MODE=NORMAL_VGA 18 19targets := vmlinux.bin setup.bin setup.elf bzImage 20targets += fdimage fdimage144 fdimage288 image.iso mtools.conf 21subdir- := compressed 22 23setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o 24setup-y += early_serial_console.o edd.o header.o main.o mca.o memory.o 25setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o 26setup-y += video-mode.o version.o 27setup-$(CONFIG_X86_APM_BOOT) += apm.o 28 29# The link order of the video-*.o modules can matter. In particular, 30# video-vga.o *must* be listed first, followed by video-vesa.o. 31# Hardware-specific drivers should follow in the order they should be 32# probed, and video-bios.o should typically be last. 33setup-y += video-vga.o 34setup-y += video-vesa.o 35setup-y += video-bios.o 36 37targets += $(setup-y) 38hostprogs-y := mkcpustr tools/build 39 40HOST_EXTRACFLAGS += $(LINUXINCLUDE) 41 42$(obj)/cpu.o: $(obj)/cpustr.h 43 44quiet_cmd_cpustr = CPUSTR $@ 45 cmd_cpustr = $(obj)/mkcpustr > $@ 46targets += cpustr.h 47$(obj)/cpustr.h: $(obj)/mkcpustr FORCE 48 $(call if_changed,cpustr) 49 50# --------------------------------------------------------------------------- 51 52# How to compile the 16-bit code. Note we always compile for -march=i386, 53# that way we can complain to the user if the CPU is insufficient. 54KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ 55 -DDISABLE_BRANCH_PROFILING \ 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_CFLAGS += $(call cc-option, -m32) 66KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ 67GCOV_PROFILE := n 68 69$(obj)/bzImage: asflags-y := $(SVGA_MODE) 70 71quiet_cmd_image = BUILD $@ 72cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin > $@ 73 74$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE 75 $(call if_changed,image) 76 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' 77 78OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S 79$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE 80 $(call if_changed,objcopy) 81 82SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) 83 84sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p' 85 86quiet_cmd_voffset = VOFFSET $@ 87 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@ 88 89targets += voffset.h 90$(obj)/voffset.h: vmlinux FORCE 91 $(call if_changed,voffset) 92 93sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p' 94 95quiet_cmd_zoffset = ZOFFSET $@ 96 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ 97 98targets += zoffset.h 99$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE 100 $(call if_changed,zoffset) 101 102 103AFLAGS_header.o += -I$(obj) 104$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h 105 106LDFLAGS_setup.elf := -T 107$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE 108 $(call if_changed,ld) 109 110OBJCOPYFLAGS_setup.bin := -O binary 111$(obj)/setup.bin: $(obj)/setup.elf FORCE 112 $(call if_changed,objcopy) 113 114$(obj)/compressed/vmlinux: FORCE 115 $(Q)$(MAKE) $(build)=$(obj)/compressed $@ 116 117# Set this if you want to pass append arguments to the 118# bzdisk/fdimage/isoimage kernel 119FDARGS = 120# Set this if you want an initrd included with the 121# bzdisk/fdimage/isoimage kernel 122FDINITRD = 123 124image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) 125 126$(obj)/mtools.conf: $(src)/mtools.conf.in 127 sed -e 's|@OBJ@|$(obj)|g' < $< > $@ 128 129# This requires write access to /dev/fd0 130bzdisk: $(obj)/bzImage $(obj)/mtools.conf 131 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync 132 syslinux /dev/fd0 ; sync 133 echo '$(image_cmdline)' | \ 134 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg 135 if [ -f '$(FDINITRD)' ] ; then \ 136 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ 137 fi 138 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync 139 140# These require being root or having syslinux 2.02 or higher installed 141fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf 142 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 143 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync 144 syslinux $(obj)/fdimage ; sync 145 echo '$(image_cmdline)' | \ 146 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg 147 if [ -f '$(FDINITRD)' ] ; then \ 148 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ 149 fi 150 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync 151 152fdimage288: $(obj)/bzImage $(obj)/mtools.conf 153 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 154 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync 155 syslinux $(obj)/fdimage ; sync 156 echo '$(image_cmdline)' | \ 157 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg 158 if [ -f '$(FDINITRD)' ] ; then \ 159 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ 160 fi 161 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync 162 163isoimage: $(obj)/bzImage 164 -rm -rf $(obj)/isoimage 165 mkdir $(obj)/isoimage 166 for i in lib lib64 share end ; do \ 167 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ 168 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ 169 break ; \ 170 fi ; \ 171 if [ $$i = end ] ; then exit 1 ; fi ; \ 172 done 173 cp $(obj)/bzImage $(obj)/isoimage/linux 174 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg 175 if [ -f '$(FDINITRD)' ] ; then \ 176 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ 177 fi 178 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ 179 -no-emul-boot -boot-load-size 4 -boot-info-table \ 180 $(obj)/isoimage 181 isohybrid $(obj)/image.iso 2>/dev/null || true 182 rm -rf $(obj)/isoimage 183 184bzlilo: $(obj)/bzImage 185 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi 186 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi 187 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz 188 cp System.map $(INSTALL_PATH)/ 189 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi 190 191install: 192 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \ 193 System.map "$(INSTALL_PATH)" 194