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