1 # Makefile for making ELF bootable images for booting on CHRP
4 # Geert Uytterhoeven September 1997
6 # Based on coffboot by Paul Mackerras
7 # Simplified for ppc64 by Todd Inglett
9 # NOTE: this code is built for 32 bit in ELF32 format even though
10 # it packages a 64 bit kernel. We do this to simplify the
11 # bootloader and increase compatibility with OpenFirmware.
13 # To this end we need to define BOOTCC, etc, as the tools
14 # needed to build the 32 bit image. That's normally the same
15 # compiler for the rest of the kernel, with the -m32 flag added.
16 # To make it easier to setup a cross compiler,
17 # CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
18 # in the toplevel makefile.
22 BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
23 -fno-strict-aliasing -Os -msoft-float -pipe \
24 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
25 -isystem $(shell $(CROSS32CC) -print-file-name=include)
26 BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
28 ifdef CONFIG_DEBUG_INFO
32 ifeq ($(call cc-option-yn, -fstack-protector),y)
33 BOOTCFLAGS += -fno-stack-protector
36 BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
38 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
39 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
40 $(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
41 $(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
42 $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
45 zlib := inffast.c inflate.c inftrees.c
46 zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
47 zliblinuxheader := zlib.h zconf.h zutil.h
49 $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
50 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
52 src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
53 src-wlib := string.S crt0.S stdio.c main.c \
54 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
55 ns16550.c serial.c simple_alloc.c div64.S util.S \
56 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
57 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
58 cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
59 fsl-soc.c mpc8xx.c pq2.c
60 src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \
61 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
62 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
63 cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
64 fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
65 cuboot-katmai.c cuboot-rainier.c
66 src-boot := $(src-wlib) $(src-plat) empty.c
68 src-boot := $(addprefix $(obj)/, $(src-boot))
69 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
70 obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
71 obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
73 quiet_cmd_copy_zlib = COPY $@
74 cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
76 quiet_cmd_copy_zlibheader = COPY $@
77 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
79 quiet_cmd_copy_zliblinuxheader = COPY $@
80 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
82 $(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
85 $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
86 $(call cmd,copy_zlibheader)
88 $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
89 $(call cmd,copy_zliblinuxheader)
94 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
97 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
98 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds
100 quiet_cmd_bootcc = BOOTCC $@
101 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
103 quiet_cmd_bootas = BOOTAS $@
104 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
106 quiet_cmd_bootar = BOOTAR $@
107 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
109 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
110 $(Q)mkdir -p $(dir $@)
111 $(call if_changed_dep,bootcc)
112 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
113 $(Q)mkdir -p $(dir $@)
114 $(call if_changed_dep,bootas)
116 $(obj)/wrapper.a: $(obj-wlib) FORCE
117 $(call if_changed,bootar)
119 hostprogs-y := addnote addRamDisk hack-coff mktree dtc
121 targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
122 extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
123 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
125 wrapper :=$(srctree)/$(src)/wrapper
126 wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
130 # Bits for building dtc
131 # DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output
133 dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
134 dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
135 dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
137 # prerequisites on generated files needs to be explicit
138 $(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
139 $(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
141 HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
143 targets += dtc-src/dtc-parser.tab.c
144 targets += dtc-src/dtc-lexer.lex.c
150 quiet_cmd_bison = BISON $@
151 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
152 quiet_cmd_flex = FLEX $@
153 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
155 $(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
156 $(call if_changed,bison)
158 $(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
160 $(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
161 $(call if_changed,flex)
165 # Bits for building various flavours of zImage
167 ifneq ($(CROSS32_COMPILE),)
168 CROSSWRAP := -C "$(CROSS32_COMPILE)"
170 ifneq ($(CROSS_COMPILE),)
171 CROSSWRAP := -C "$(CROSS_COMPILE)"
175 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
176 quiet_cmd_wrap = WRAP $@
177 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
178 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
180 image-$(CONFIG_PPC_PSERIES) += zImage.pseries
181 image-$(CONFIG_PPC_MAPLE) += zImage.pseries
182 image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
183 image-$(CONFIG_PPC_PS3) += zImage.ps3
184 image-$(CONFIG_PPC_CELLEB) += zImage.pseries
185 image-$(CONFIG_PPC_CHRP) += zImage.chrp
186 image-$(CONFIG_PPC_EFIKA) += zImage.chrp
187 image-$(CONFIG_PPC_PMAC) += zImage.pmac
188 image-$(CONFIG_PPC_HOLLY) += zImage.holly
189 image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
190 image-$(CONFIG_PPC_ISERIES) += zImage.iseries
191 image-$(CONFIG_DEFAULT_UIMAGE) += uImage
193 ifneq ($(CONFIG_DEVICE_TREE),"")
194 image-$(CONFIG_PPC_8xx) += cuImage.8xx
195 image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc
196 image-$(CONFIG_EP405) += zImage.ep405
197 image-$(CONFIG_8260) += cuImage.pq2
198 image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx
199 image-$(CONFIG_PPC_83xx) += cuImage.83xx
200 image-$(CONFIG_PPC_85xx) += cuImage.85xx
201 image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2
202 image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
203 image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
204 image-$(CONFIG_SEQUOIA) += cuImage.sequoia
205 image-$(CONFIG_RAINIER) += cuImage.rainier
206 image-$(CONFIG_WALNUT) += treeImage.walnut
207 image-$(CONFIG_TAISHAN) += cuImage.taishan
208 image-$(CONFIG_KATMAI) += cuImage.katmai
211 # For 32-bit powermacs, build the COFF and miboot images
212 # as well as the ELF images.
213 ifeq ($(CONFIG_PPC32),y)
214 image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
217 initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
218 initrd-y := $(patsubst zImage%, zImage.initrd%, \
219 $(patsubst treeImage%, treeImage.initrd%, $(image-y)))
220 initrd-y := $(filter-out $(image-y), $(initrd-y))
221 targets += $(image-y) $(initrd-y)
223 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
225 # If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
226 # empty string, define 'dts' to be path to the dts
227 # CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
228 ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
229 ifneq ($(CONFIG_DEVICE_TREE),"")
230 dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
231 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
235 # Don't put the ramdisk on the pattern rule; when its missing make will try
236 # the pattern rule with less dependencies that also matches (even with the
237 # hard dependency listed).
238 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
239 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
241 $(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
242 $(call if_changed,wrap,$*,$(dts))
244 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
246 $(obj)/vmlinux.strip: vmlinux
247 $(STRIP) -s -R .comment $< -o $@
249 $(obj)/zImage.iseries: vmlinux
250 $(STRIP) -s -R .comment $< -o $@
252 $(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
253 $(STRIP) -s -R .comment $< -o vmlinux.strip
254 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
256 $(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
257 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
259 $(obj)/uImage: vmlinux $(wrapperbits)
260 $(call if_changed,wrap,uboot)
262 $(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
263 $(call if_changed,wrap,cuboot-$*,$(dts))
265 $(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
266 $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
268 $(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
269 $(call if_changed,wrap,treeboot-$*,$(dts))
271 # If there isn't a platform selected then just strip the vmlinux.
273 image-y := vmlinux.strip
276 $(obj)/zImage: $(addprefix $(obj)/, $(image-y))
278 $(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
281 install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
282 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
284 # anything not in $(targets)
285 clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
288 # clean up files cached by wrapper
289 clean-kernel := vmlinux.strip vmlinux.bin
290 clean-kernel += $(addsuffix .gz,$(clean-kernel))
291 # If not absolute clean-files are relative to $(obj).
292 clean-files += $(addprefix $(objtree)/, $(clean-kernel))
294 WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
295 WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
296 WRAPPER_BINDIR := /usr/sbin
299 extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
300 hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
301 wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
302 dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
304 all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
306 quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
307 cmd_mkdir = mkdir -p $@
309 quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
310 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
312 quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
313 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
315 quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
316 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
318 quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
319 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
320 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
321 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
324 $(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
327 $(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
330 $(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
331 $(call cmd,install_exe)
333 $(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
334 $(call cmd,install_dts)
336 $(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
337 $(call cmd,install_wrapper)
339 $(obj)/bootwrapper_install: $(all-installed)