xref: /openbmc/linux/arch/x86/boot/Makefile (revision cc8bbe1a) 
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
12KASAN_SANITIZE := n
13
14# If you want to preset the SVGA mode, uncomment the next line and
15# set SVGA_MODE to whatever number you want.
16# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
17# The number is the same as you would ordinarily press at bootup.
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 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	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
62GCOV_PROFILE := n
63UBSAN_SANITIZE := n
64
65$(obj)/bzImage: asflags-y  := $(SVGA_MODE)
66
67quiet_cmd_image = BUILD   $@
68cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
69			       $(obj)/zoffset.h $@
70
71$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
72	$(call if_changed,image)
73	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
74
75OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
76$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
77	$(call if_changed,objcopy)
78
79SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
80
81sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
82
83quiet_cmd_voffset = VOFFSET $@
84      cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
85
86targets += voffset.h
87$(obj)/voffset.h: vmlinux FORCE
88	$(call if_changed,voffset)
89
90sed-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'
91
92quiet_cmd_zoffset = ZOFFSET $@
93      cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
94
95targets += zoffset.h
96$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
97	$(call if_changed,zoffset)
98
99
100AFLAGS_header.o += -I$(obj)
101$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
102
103LDFLAGS_setup.elf	:= -T
104$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
105	$(call if_changed,ld)
106
107OBJCOPYFLAGS_setup.bin	:= -O binary
108$(obj)/setup.bin: $(obj)/setup.elf FORCE
109	$(call if_changed,objcopy)
110
111$(obj)/compressed/vmlinux: FORCE
112	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
113
114# Set this if you want to pass append arguments to the
115# bzdisk/fdimage/isoimage kernel
116FDARGS =
117# Set this if you want an initrd included with the
118# bzdisk/fdimage/isoimage kernel
119FDINITRD =
120
121image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
122
123$(obj)/mtools.conf: $(src)/mtools.conf.in
124	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
125
126# This requires write access to /dev/fd0
127bzdisk: $(obj)/bzImage $(obj)/mtools.conf
128	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
129	syslinux /dev/fd0					; sync
130	echo '$(image_cmdline)' | \
131		MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
132	if [ -f '$(FDINITRD)' ] ; then \
133		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
134	fi
135	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux	; sync
136
137# These require being root or having syslinux 2.02 or higher installed
138fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
139	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
140	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
141	syslinux $(obj)/fdimage					; sync
142	echo '$(image_cmdline)' | \
143		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
144	if [ -f '$(FDINITRD)' ] ; then \
145		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
146	fi
147	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux	; sync
148
149fdimage288: $(obj)/bzImage $(obj)/mtools.conf
150	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
151	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
152	syslinux $(obj)/fdimage					; sync
153	echo '$(image_cmdline)' | \
154		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
155	if [ -f '$(FDINITRD)' ] ; then \
156		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
157	fi
158	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux	; sync
159
160isoimage: $(obj)/bzImage
161	-rm -rf $(obj)/isoimage
162	mkdir $(obj)/isoimage
163	for i in lib lib64 share end ; do \
164		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
165			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
166			break ; \
167		fi ; \
168		if [ $$i = end ] ; then exit 1 ; fi ; \
169	done
170	cp $(obj)/bzImage $(obj)/isoimage/linux
171	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
172	if [ -f '$(FDINITRD)' ] ; then \
173		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
174	fi
175	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
176		-no-emul-boot -boot-load-size 4 -boot-info-table \
177		$(obj)/isoimage
178	isohybrid $(obj)/image.iso 2>/dev/null || true
179	rm -rf $(obj)/isoimage
180
181bzlilo: $(obj)/bzImage
182	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
183	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
184	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
185	cp System.map $(INSTALL_PATH)/
186	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
187
188install:
189	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
190		System.map "$(INSTALL_PATH)"
191