xref: /openbmc/linux/arch/x86/boot/Makefile (revision e8f6f3b4) 
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 cpuflags.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		+= $(setup-y)
38hostprogs-y	:= tools/build
39hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr
40
41HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
42		    -include include/generated/autoconf.h \
43	            -D__EXPORTED_HEADERS__
44
45ifdef CONFIG_X86_FEATURE_NAMES
46$(obj)/cpu.o: $(obj)/cpustr.h
47
48quiet_cmd_cpustr = CPUSTR  $@
49      cmd_cpustr = $(obj)/mkcpustr > $@
50targets += cpustr.h
51$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
52	$(call if_changed,cpustr)
53endif
54clean-files += cpustr.h
55
56# ---------------------------------------------------------------------------
57
58KBUILD_CFLAGS	:= $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
59KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
60GCOV_PROFILE := n
61
62$(obj)/bzImage: asflags-y  := $(SVGA_MODE)
63
64quiet_cmd_image = BUILD   $@
65cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
66			       $(obj)/zoffset.h $@
67
68$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
69	$(call if_changed,image)
70	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
71
72OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
73$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
74	$(call if_changed,objcopy)
75
76SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
77
78sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
79
80quiet_cmd_voffset = VOFFSET $@
81      cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
82
83targets += voffset.h
84$(obj)/voffset.h: vmlinux FORCE
85	$(call if_changed,voffset)
86
87sed-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'
88
89quiet_cmd_zoffset = ZOFFSET $@
90      cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
91
92targets += zoffset.h
93$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
94	$(call if_changed,zoffset)
95
96
97AFLAGS_header.o += -I$(obj)
98$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
99
100LDFLAGS_setup.elf	:= -T
101$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
102	$(call if_changed,ld)
103
104OBJCOPYFLAGS_setup.bin	:= -O binary
105$(obj)/setup.bin: $(obj)/setup.elf FORCE
106	$(call if_changed,objcopy)
107
108$(obj)/compressed/vmlinux: FORCE
109	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
110
111# Set this if you want to pass append arguments to the
112# bzdisk/fdimage/isoimage kernel
113FDARGS =
114# Set this if you want an initrd included with the
115# bzdisk/fdimage/isoimage kernel
116FDINITRD =
117
118image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
119
120$(obj)/mtools.conf: $(src)/mtools.conf.in
121	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
122
123# This requires write access to /dev/fd0
124bzdisk: $(obj)/bzImage $(obj)/mtools.conf
125	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
126	syslinux /dev/fd0					; sync
127	echo '$(image_cmdline)' | \
128		MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
129	if [ -f '$(FDINITRD)' ] ; then \
130		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
131	fi
132	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux	; sync
133
134# These require being root or having syslinux 2.02 or higher installed
135fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
136	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
137	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
138	syslinux $(obj)/fdimage					; sync
139	echo '$(image_cmdline)' | \
140		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
141	if [ -f '$(FDINITRD)' ] ; then \
142		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
143	fi
144	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux	; sync
145
146fdimage288: $(obj)/bzImage $(obj)/mtools.conf
147	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
148	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
149	syslinux $(obj)/fdimage					; sync
150	echo '$(image_cmdline)' | \
151		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
152	if [ -f '$(FDINITRD)' ] ; then \
153		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
154	fi
155	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux	; sync
156
157isoimage: $(obj)/bzImage
158	-rm -rf $(obj)/isoimage
159	mkdir $(obj)/isoimage
160	for i in lib lib64 share end ; do \
161		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
162			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
163			break ; \
164		fi ; \
165		if [ $$i = end ] ; then exit 1 ; fi ; \
166	done
167	cp $(obj)/bzImage $(obj)/isoimage/linux
168	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
169	if [ -f '$(FDINITRD)' ] ; then \
170		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
171	fi
172	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
173		-no-emul-boot -boot-load-size 4 -boot-info-table \
174		$(obj)/isoimage
175	isohybrid $(obj)/image.iso 2>/dev/null || true
176	rm -rf $(obj)/isoimage
177
178bzlilo: $(obj)/bzImage
179	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
180	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
181	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
182	cp System.map $(INSTALL_PATH)/
183	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
184
185install:
186	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
187		System.map "$(INSTALL_PATH)"
188