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