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)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
44 zlib := inffast.c inflate.c inftrees.c
45 zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
46 zliblinuxheader := zlib.h zconf.h zutil.h
48 $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
49 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
51 src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
52 src-wlib := string.S crt0.S stdio.c main.c \
53 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
54 ns16550.c serial.c simple_alloc.c div64.S util.S \
55 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
56 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
57 cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
58 fsl-soc.c mpc8xx.c pq2.c
59 src-plat := of.c cuboot-52xx.c cuboot-83xx.c cuboot-85xx.c holly.c \
60 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
61 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
62 cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
63 fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c
64 src-boot := $(src-wlib) $(src-plat) empty.c
66 src-boot := $(addprefix $(obj)/, $(src-boot))
67 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
68 obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
69 obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
71 quiet_cmd_copy_zlib = COPY $@
72 cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
74 quiet_cmd_copy_zlibheader = COPY $@
75 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
77 quiet_cmd_copy_zliblinuxheader = COPY $@
78 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
80 $(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
83 $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
84 $(call cmd,copy_zlibheader)
86 $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
87 $(call cmd,copy_zliblinuxheader)
92 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
95 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
96 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds
98 quiet_cmd_bootcc = BOOTCC $@
99 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
101 quiet_cmd_bootas = BOOTAS $@
102 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
104 quiet_cmd_bootar = BOOTAR $@
105 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
107 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
108 $(Q)mkdir -p $(dir $@)
109 $(call if_changed_dep,bootcc)
110 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
111 $(Q)mkdir -p $(dir $@)
112 $(call if_changed_dep,bootas)
114 $(obj)/wrapper.a: $(obj-wlib) FORCE
115 $(call if_changed,bootar)
117 hostprogs-y := addnote addRamDisk hack-coff mktree dtc
119 targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
120 extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
121 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
123 wrapper :=$(srctree)/$(src)/wrapper
124 wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
128 # Bits for building dtc
129 # DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output
131 dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
132 dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
133 dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
135 # prerequisites on generated files needs to be explicit
136 $(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
137 $(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
139 HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
141 targets += dtc-src/dtc-parser.tab.c
142 targets += dtc-src/dtc-lexer.lex.c
148 quiet_cmd_bison = BISON $@
149 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
150 quiet_cmd_flex = FLEX $@
151 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
153 $(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
154 $(call if_changed,bison)
156 $(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
158 $(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
159 $(call if_changed,flex)
163 # Bits for building various flavours of zImage
165 ifneq ($(CROSS32_COMPILE),)
166 CROSSWRAP := -C "$(CROSS32_COMPILE)"
168 ifneq ($(CROSS_COMPILE),)
169 CROSSWRAP := -C "$(CROSS_COMPILE)"
173 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
174 quiet_cmd_wrap = WRAP $@
175 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
176 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
178 image-$(CONFIG_PPC_PSERIES) += zImage.pseries
179 image-$(CONFIG_PPC_MAPLE) += zImage.pseries
180 image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
181 image-$(CONFIG_PPC_PS3) += zImage.ps3
182 image-$(CONFIG_PPC_CELLEB) += zImage.pseries
183 image-$(CONFIG_PPC_CHRP) += zImage.chrp
184 image-$(CONFIG_PPC_EFIKA) += zImage.chrp
185 image-$(CONFIG_PPC_PMAC) += zImage.pmac
186 image-$(CONFIG_PPC_HOLLY) += zImage.holly
187 image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
188 image-$(CONFIG_PPC_ISERIES) += zImage.iseries
189 image-$(CONFIG_DEFAULT_UIMAGE) += uImage
191 ifneq ($(CONFIG_DEVICE_TREE),"")
192 image-$(CONFIG_PPC_8xx) += cuImage.8xx
193 image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc
194 image-$(CONFIG_EP405) += zImage.ep405
195 image-$(CONFIG_8260) += cuImage.pq2
196 image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx
197 image-$(CONFIG_PPC_83xx) += cuImage.83xx
198 image-$(CONFIG_PPC_85xx) += cuImage.85xx
199 image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2
200 image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
201 image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
202 image-$(CONFIG_SEQUOIA) += cuImage.sequoia
203 image-$(CONFIG_WALNUT) += treeImage.walnut
204 image-$(CONFIG_TAISHAN) += cuImage.taishan
207 # For 32-bit powermacs, build the COFF and miboot images
208 # as well as the ELF images.
209 ifeq ($(CONFIG_PPC32),y)
210 image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
213 initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
214 initrd-y := $(patsubst zImage%, zImage.initrd%, \
215 $(patsubst treeImage%, treeImage.initrd%, $(image-y)))
216 initrd-y := $(filter-out $(image-y), $(initrd-y))
217 targets += $(image-y) $(initrd-y)
219 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
221 # If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
222 # empty string, define 'dts' to be path to the dts
223 # CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
224 ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
225 ifneq ($(CONFIG_DEVICE_TREE),"")
226 dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
227 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
231 # Don't put the ramdisk on the pattern rule; when its missing make will try
232 # the pattern rule with less dependencies that also matches (even with the
233 # hard dependency listed).
234 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
235 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
237 $(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
238 $(call if_changed,wrap,$*,$(dts))
240 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
242 $(obj)/vmlinux.strip: vmlinux
243 $(STRIP) -s -R .comment $< -o $@
245 $(obj)/zImage.iseries: vmlinux
246 $(STRIP) -s -R .comment $< -o $@
248 $(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
249 $(STRIP) -s -R .comment $< -o vmlinux.strip
250 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
252 $(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
253 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
255 $(obj)/uImage: vmlinux $(wrapperbits)
256 $(call if_changed,wrap,uboot)
258 $(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
259 $(call if_changed,wrap,cuboot-$*,$(dts))
261 $(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
262 $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
264 $(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
265 $(call if_changed,wrap,treeboot-$*,$(dts))
267 # If there isn't a platform selected then just strip the vmlinux.
269 image-y := vmlinux.strip
272 $(obj)/zImage: $(addprefix $(obj)/, $(image-y))
274 $(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
277 install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
278 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
280 # anything not in $(targets)
281 clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
284 # clean up files cached by wrapper
285 clean-kernel := vmlinux.strip vmlinux.bin
286 clean-kernel += $(addsuffix .gz,$(clean-kernel))
287 # If not absolute clean-files are relative to $(obj).
288 clean-files += $(addprefix $(objtree)/, $(clean-kernel))
290 WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
291 WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
292 WRAPPER_BINDIR := /usr/sbin
295 extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
296 hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
297 wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
298 dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
300 all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
302 quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
303 cmd_mkdir = mkdir -p $@
305 quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
306 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
308 quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
309 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
311 quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
312 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
314 quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
315 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
316 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
317 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
320 $(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
323 $(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
326 $(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
327 $(call cmd,install_exe)
329 $(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
330 $(call cmd,install_dts)
332 $(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
333 $(call cmd,install_wrapper)
335 $(obj)/bootwrapper_install: $(all-installed)