xref: /openbmc/linux/arch/x86/boot/Makefile (revision 94c7b6fc) 
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		+= $(setup-y)
38hostprogs-y	:= mkcpustr tools/build
39
40HOST_EXTRACFLAGS += -I$(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
54KBUILD_CFLAGS	:= $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
55KBUILD_AFLAGS	:= $(KBUILD_CFLAGS) -D__ASSEMBLY__
56GCOV_PROFILE := n
57
58$(obj)/bzImage: asflags-y  := $(SVGA_MODE)
59
60quiet_cmd_image = BUILD   $@
61cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
62			       $(obj)/zoffset.h $@
63
64$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
65	$(call if_changed,image)
66	@echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
67
68OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
69$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
70	$(call if_changed,objcopy)
71
72SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
73
74sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
75
76quiet_cmd_voffset = VOFFSET $@
77      cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
78
79targets += voffset.h
80$(obj)/voffset.h: vmlinux FORCE
81	$(call if_changed,voffset)
82
83sed-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'
84
85quiet_cmd_zoffset = ZOFFSET $@
86      cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
87
88targets += zoffset.h
89$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
90	$(call if_changed,zoffset)
91
92
93AFLAGS_header.o += -I$(obj)
94$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
95
96LDFLAGS_setup.elf	:= -T
97$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
98	$(call if_changed,ld)
99
100OBJCOPYFLAGS_setup.bin	:= -O binary
101$(obj)/setup.bin: $(obj)/setup.elf FORCE
102	$(call if_changed,objcopy)
103
104$(obj)/compressed/vmlinux: FORCE
105	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
106
107# Set this if you want to pass append arguments to the
108# bzdisk/fdimage/isoimage kernel
109FDARGS =
110# Set this if you want an initrd included with the
111# bzdisk/fdimage/isoimage kernel
112FDINITRD =
113
114image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
115
116$(obj)/mtools.conf: $(src)/mtools.conf.in
117	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
118
119# This requires write access to /dev/fd0
120bzdisk: $(obj)/bzImage $(obj)/mtools.conf
121	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
122	syslinux /dev/fd0					; sync
123	echo '$(image_cmdline)' | \
124		MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
125	if [ -f '$(FDINITRD)' ] ; then \
126		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
127	fi
128	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux	; sync
129
130# These require being root or having syslinux 2.02 or higher installed
131fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
132	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
133	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
134	syslinux $(obj)/fdimage					; sync
135	echo '$(image_cmdline)' | \
136		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
137	if [ -f '$(FDINITRD)' ] ; then \
138		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
139	fi
140	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux	; sync
141
142fdimage288: $(obj)/bzImage $(obj)/mtools.conf
143	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
144	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
145	syslinux $(obj)/fdimage					; sync
146	echo '$(image_cmdline)' | \
147		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
148	if [ -f '$(FDINITRD)' ] ; then \
149		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
150	fi
151	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux	; sync
152
153isoimage: $(obj)/bzImage
154	-rm -rf $(obj)/isoimage
155	mkdir $(obj)/isoimage
156	for i in lib lib64 share end ; do \
157		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
158			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
159			break ; \
160		fi ; \
161		if [ $$i = end ] ; then exit 1 ; fi ; \
162	done
163	cp $(obj)/bzImage $(obj)/isoimage/linux
164	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
165	if [ -f '$(FDINITRD)' ] ; then \
166		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
167	fi
168	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
169		-no-emul-boot -boot-load-size 4 -boot-info-table \
170		$(obj)/isoimage
171	isohybrid $(obj)/image.iso 2>/dev/null || true
172	rm -rf $(obj)/isoimage
173
174bzlilo: $(obj)/bzImage
175	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
176	if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
177	cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
178	cp System.map $(INSTALL_PATH)/
179	if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
180
181install:
182	sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
183		System.map "$(INSTALL_PATH)"
184