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1# Makefile for making ELF bootable images for booting on CHRP
2# using Open Firmware.
3#
4# Geert Uytterhoeven September 1997
5#
6# Based on coffboot by Paul Mackerras
7# Simplified for ppc64 by Todd Inglett
8#
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.
12#
13# To this end we need to define BOOTCC, etc, as the tools
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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.
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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.
19
2bf11819 20all: $(obj)/zImage
1da177e4 21
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22BOOTCFLAGS := -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)
decd300b 26BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
2bf11819 27
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28ifdef CONFIG_DEBUG_INFO
29BOOTCFLAGS += -g
30endif
31
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32ifeq ($(call cc-option-yn, -fstack-protector),y)
33BOOTCFLAGS += -fno-stack-protector
34endif
35
2f0dfeaa 36BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
1da177e4 37
869680c1 38$(obj)/4xx.o: BOOTCFLAGS += -mcpu=440
988519ac 39$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
6bbc5476 40$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
3de9c9cd 41$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
2e71cc0d 42$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
60e41753 43
6bbc5476 44
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45zlib := inffast.c inflate.c inftrees.c
46zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
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47zliblinuxheader := zlib.h zconf.h zutil.h
48
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49$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
50 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
2bf11819 51
2f0dfeaa 52src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
430b01e8 53src-wlib := string.S crt0.S stdio.c main.c \
2f0dfeaa 54 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
ad9d2716 55 ns16550.c serial.c simple_alloc.c div64.S util.S \
2e601613 56 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
d0f53faf 57 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
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58 cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
59 fsl-soc.c mpc8xx.c pq2.c
3490cba5 60src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
bafdb645 61 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
606d08bc 62 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
11c146cc 63 cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
3de9c9cd 64 fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
0dde1a1d 65 cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c
cd197ffc 66src-boot := $(src-wlib) $(src-plat) empty.c
7054036f 67
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68src-boot := $(addprefix $(obj)/, $(src-boot))
69obj-boot := $(addsuffix .o, $(basename $(src-boot)))
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70obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
71obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
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72
73quiet_cmd_copy_zlib = COPY $@
67ccd2fc 74 cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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75
76quiet_cmd_copy_zlibheader = COPY $@
67ccd2fc 77 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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78# stddef.h for NULL
79quiet_cmd_copy_zliblinuxheader = COPY $@
67ccd2fc 80 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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81
82$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
83 $(call cmd,copy_zlib)
84
85$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
86 $(call cmd,copy_zlibheader)
87
88$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
89 $(call cmd,copy_zliblinuxheader)
90
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91$(obj)/empty.c:
92 @touch $@
93
bafdb645 94$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
2bf11819 95 @cp $< $@
7054036f 96
2bf11819 97clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
bafdb645 98 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds
7054036f 99
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100quiet_cmd_bootcc = BOOTCC $@
101 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
102
103quiet_cmd_bootas = BOOTAS $@
104 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
105
2bf11819 106quiet_cmd_bootar = BOOTAR $@
235fd835 107 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
a24c8481 108
235fd835 109$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
2f0dfeaa 110 $(Q)mkdir -p $(dir $@)
1da177e4 111 $(call if_changed_dep,bootcc)
235fd835 112$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
2f0dfeaa 113 $(Q)mkdir -p $(dir $@)
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114 $(call if_changed_dep,bootas)
115
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116$(obj)/wrapper.a: $(obj-wlib) FORCE
117 $(call if_changed,bootar)
1da177e4 118
e2dc87a1 119hostprogs-y := addnote addRamDisk hack-coff mktree dtc
1da177e4 120
235fd835 121targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
cd197ffc 122extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
bafdb645 123 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
66a45dd3 124
2bf11819 125wrapper :=$(srctree)/$(src)/wrapper
e2dc87a1 126wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
235fd835 127 $(wrapper) FORCE
1da177e4 128
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129#############
130# Bits for building dtc
131# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output
132
133dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
134dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
135dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
136
137# prerequisites on generated files needs to be explicit
138$(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 $(obj)/dtc-src/dtc-parser.tab.h
140
141HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
142
143targets += dtc-src/dtc-parser.tab.c
144targets += dtc-src/dtc-lexer.lex.c
145
146ifdef DTC_GENPARSER
147BISON = bison
148FLEX = flex
149
150quiet_cmd_bison = BISON $@
151 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
152quiet_cmd_flex = FLEX $@
153 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
154
155$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
156 $(call if_changed,bison)
157
158$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
159
160$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
161 $(call if_changed,flex)
162endif
163
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164#############
165# Bits for building various flavours of zImage
1da177e4 166
2bf11819 167ifneq ($(CROSS32_COMPILE),)
dcf90651 168CROSSWRAP := -C "$(CROSS32_COMPILE)"
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169else
170ifneq ($(CROSS_COMPILE),)
dcf90651 171CROSSWRAP := -C "$(CROSS_COMPILE)"
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172endif
173endif
1da177e4 174
9da82a6d 175# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
2bf11819 176quiet_cmd_wrap = WRAP $@
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177 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
178 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
2bf11819 179
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180image-$(CONFIG_PPC_PSERIES) += zImage.pseries
181image-$(CONFIG_PPC_MAPLE) += zImage.pseries
182image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
8a8944aa 183image-$(CONFIG_PPC_PS3) += zImage.ps3
c347b798 184image-$(CONFIG_PPC_CELLEB) += zImage.pseries
020533ef 185image-$(CONFIG_PPC_CHRP) += zImage.chrp
7839af33 186image-$(CONFIG_PPC_EFIKA) += zImage.chrp
020533ef 187image-$(CONFIG_PPC_PMAC) += zImage.pmac
b0e80206 188image-$(CONFIG_PPC_HOLLY) += zImage.holly
c368d921 189image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
0570d4ed 190image-$(CONFIG_PPC_ISERIES) += zImage.iseries
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191image-$(CONFIG_DEFAULT_UIMAGE) += uImage
192
193ifneq ($(CONFIG_DEVICE_TREE),"")
0b195812 194image-$(CONFIG_PPC_8xx) += cuImage.8xx
11c146cc 195image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc
61974038 196image-$(CONFIG_EP405) += zImage.ep405
e5d8d54d 197image-$(CONFIG_8260) += cuImage.pq2
0dde1a1d 198image-$(CONFIG_EP8248E) += zImage.ep8248e
85498ae8 199image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx
3490cba5 200image-$(CONFIG_STORCENTER) += cuImage.824x
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201image-$(CONFIG_PPC_83xx) += cuImage.83xx
202image-$(CONFIG_PPC_85xx) += cuImage.85xx
c4e05bc5 203image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2
f6dfc805 204image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
658e8170 205image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
606d08bc 206image-$(CONFIG_SEQUOIA) += cuImage.sequoia
295e7427 207image-$(CONFIG_RAINIER) += cuImage.rainier
5326152f 208image-$(CONFIG_WALNUT) += treeImage.walnut
6bbc5476 209image-$(CONFIG_TAISHAN) += cuImage.taishan
3de9c9cd 210image-$(CONFIG_KATMAI) += cuImage.katmai
ac18c673 211endif
66a45dd3 212
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213ifneq ($(CONFIG_REDBOOT),"")
214image-$(CONFIG_PPC_8xx) += zImage.redboot-8xx
215endif
216
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217# For 32-bit powermacs, build the COFF and miboot images
218# as well as the ELF images.
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219ifeq ($(CONFIG_PPC32),y)
220image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
221endif
222
5d7960ff 223initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
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224initrd-y := $(patsubst zImage%, zImage.initrd%, \
225 $(patsubst treeImage%, treeImage.initrd%, $(image-y)))
9da82a6d 226initrd-y := $(filter-out $(image-y), $(initrd-y))
235fd835 227targets += $(image-y) $(initrd-y)
2bf11819 228
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229$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
230
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231# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
232# empty string, define 'dts' to be path to the dts
233# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
234ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
235ifneq ($(CONFIG_DEVICE_TREE),"")
236dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
237 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
238endif
239endif
240
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241# Don't put the ramdisk on the pattern rule; when its missing make will try
242# the pattern rule with less dependencies that also matches (even with the
243# hard dependency listed).
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244$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
245 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
9da82a6d 246
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247$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
248 $(call if_changed,wrap,$*,$(dts))
9da82a6d 249
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250# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
251# prefix
252$(obj)/vmlinux.strip: vmlinux
253 $(STRIP) -s -R .comment $< -o $@
254
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255$(obj)/zImage.iseries: vmlinux
256 $(STRIP) -s -R .comment $< -o $@
257
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258$(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
259 $(STRIP) -s -R .comment $< -o vmlinux.strip
260 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
9da82a6d 261
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262$(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
263 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
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264
265$(obj)/uImage: vmlinux $(wrapperbits)
266 $(call if_changed,wrap,uboot)
267
d25a9d66 268$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
a6afacb6 269 $(call if_changed,wrap,cuboot-$*,$(dts))
0fdd717e 270
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271$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
272 $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
273
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274$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
275 $(call if_changed,wrap,treeboot-$*,$(dts))
276
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277# If there isn't a platform selected then just strip the vmlinux.
278ifeq (,$(image-y))
279image-y := vmlinux.strip
280endif
281
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282$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
283 @rm -f $@; ln $< $@
284$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
285 @rm -f $@; ln $< $@
286
928370c6 287install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
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288 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
289
1383a34f 290# anything not in $(targets)
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291clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
292 otheros.bld
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293
294# clean up files cached by wrapper
295clean-kernel := vmlinux.strip vmlinux.bin
296clean-kernel += $(addsuffix .gz,$(clean-kernel))
297# If not absolute clean-files are relative to $(obj).
298clean-files += $(addprefix $(objtree)/, $(clean-kernel))
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299
300WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
301WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
302WRAPPER_BINDIR := /usr/sbin
303INSTALL := install
304
305extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
306hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
307wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
308dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
309
310all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
311
312quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
313 cmd_mkdir = mkdir -p $@
314
315quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
316 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
317
318quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
319 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
320
321quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
322 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
323
324quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
325 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
326 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
327 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
328
329
330$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
331 $(call cmd,mkdir)
332
333$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
334 $(call cmd,install)
335
336$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
337 $(call cmd,install_exe)
338
339$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
340 $(call cmd,install_dts)
341
342$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
343 $(call cmd,install_wrapper)
344
345$(obj)/bootwrapper_install: $(all-installed)
346