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
17KASAN_SANITIZE := n
18
19SVGA_MODE	:= -DSVGA_MODE=NORMAL_VGA
20
21targets		:= vmlinux.bin setup.bin setup.elf bzImage
22targets		+= fdimage fdimage144 fdimage288 image.iso mtools.conf
23subdir-		:= compressed
24
25setup-y		+= a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
26setup-y		+= early_serial_console.o edd.o header.o main.o mca.o memory.o
27setup-y		+= pm.o pmjump.o printf.o regs.o string.o tty.o video.o
28setup-y		+= video-mode.o version.o
29setup-$(CONFIG_X86_APM_BOOT) += apm.o
30
31# The link order of the video-*.o modules can matter.  In particular,
32# video-vga.o *must* be listed first, followed by video-vesa.o.
33# Hardware-specific drivers should follow in the order they should be
34# probed, and video-bios.o should typically be last.
35setup-y		+= video-vga.o
36setup-y		+= video-vesa.o
37setup-y		+= video-bios.o
38
39targets		+= $(setup-y)
40hostprogs-y	:= tools/build
41hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr
42
43HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
44		    -include include/generated/autoconf.h \
45	            -D__EXPORTED_HEADERS__
46
47ifdef CONFIG_X86_FEATURE_NAMES
48$(obj)/cpu.o: $(obj)/cpustr.h
49
50quiet_cmd_cpustr = CPUSTR  $@
51      cmd_cpustr = $(obj)/mkcpustr > $@
52targets += cpustr.h
53$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
54	$(call if_changed,cpustr)
55endif
56clean-files += cpustr.h
57
58# ---------------------------------------------------------------------------
59
60KBUILD_CFLAGS	:= $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
61KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
62GCOV_PROFILE := n
63
64$(obj)/bzImage: asflags-y  := $(SVGA_MODE)
65
66quiet_cmd_image = BUILD   $@
67cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
68			       $(obj)/zoffset.h $@
69
70$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
71	$(call if_changed,image)
72	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
73
74OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
75$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
76	$(call if_changed,objcopy)
77
78SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
79
80sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
81
82quiet_cmd_voffset = VOFFSET $@
83      cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
84
85targets += voffset.h
86$(obj)/voffset.h: vmlinux FORCE
87	$(call if_changed,voffset)
88
89sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
90
91quiet_cmd_zoffset = ZOFFSET $@
92      cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
93
94targets += zoffset.h
95$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
96	$(call if_changed,zoffset)
97
98
99AFLAGS_header.o += -I$(obj)
100$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
101
102LDFLAGS_setup.elf	:= -T
103$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
104	$(call if_changed,ld)
105
106OBJCOPYFLAGS_setup.bin	:= -O binary
107$(obj)/setup.bin: $(obj)/setup.elf FORCE
108	$(call if_changed,objcopy)
109
110$(obj)/compressed/vmlinux: FORCE
111	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
112
113# Set this if you want to pass append arguments to the
114# bzdisk/fdimage/isoimage kernel
115FDARGS =
116# Set this if you want an initrd included with the
117# bzdisk/fdimage/isoimage kernel
118FDINITRD =
119
120image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
121
122$(obj)/mtools.conf: $(src)/mtools.conf.in
123	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
124
125# This requires write access to /dev/fd0
126bzdisk: $(obj)/bzImage $(obj)/mtools.conf
127	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
128	syslinux /dev/fd0					; sync
129	echo '$(image_cmdline)' | \
130		MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
131	if [ -f '$(FDINITRD)' ] ; then \
132		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
133	fi
134	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux	; sync
135
136# These require being root or having syslinux 2.02 or higher installed
137fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
138	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
139	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
140	syslinux $(obj)/fdimage					; sync
141	echo '$(image_cmdline)' | \
142		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
143	if [ -f '$(FDINITRD)' ] ; then \
144		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
145	fi
146	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux	; sync
147
148fdimage288: $(obj)/bzImage $(obj)/mtools.conf
149	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
150	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
151	syslinux $(obj)/fdimage					; sync
152	echo '$(image_cmdline)' | \
153		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
154	if [ -f '$(FDINITRD)' ] ; then \
155		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
156	fi
157	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux	; sync
158
159isoimage: $(obj)/bzImage
160	-rm -rf $(obj)/isoimage
161	mkdir $(obj)/isoimage
162	for i in lib lib64 share end ; do \
163		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
164			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
165			if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
166				cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
167			fi ; \
168			break ; \
169		fi ; \
170		if [ $$i = end ] ; then exit 1 ; fi ; \
171	done
172	cp $(obj)/bzImage $(obj)/isoimage/linux
173	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
174	if [ -f '$(FDINITRD)' ] ; then \
175		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
176	fi
177	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
178		-no-emul-boot -boot-load-size 4 -boot-info-table \
179		$(obj)/isoimage
180	isohybrid $(obj)/image.iso 2>/dev/null || true
181	rm -rf $(obj)/isoimage
182
183bzlilo: $(obj)/bzImage
184	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
185	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
186	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
187	cp System.map $(INSTALL_PATH)/
188	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
189
190install:
191	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
192		System.map "$(INSTALL_PATH)"
193