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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
  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.
  19
  20 all: $(obj)/zImage
  21
  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__ $(BOOTCFLAGS) -traditional -nostdinc
  27
  28 ifdef CONFIG_DEBUG_INFO
  29 BOOTCFLAGS      += -g
  30 endif
  31
  32 ifeq ($(call cc-option-yn, -fstack-protector),y)
  33 BOOTCFLAGS      += -fno-stack-protector
  34 endif
  35
  36 BOOTCFLAGS      += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
  37
  38 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
  39 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
  40 $(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
  41 $(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
  42 $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
  43
  44
  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
  48
  49 $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
  50         $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
  51
  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-824x.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 \
  64                 cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
  65                 fixed-head.S ep88xc.c ep405.c \
  66                 cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
  67                 cuboot-warp.c cuboot-85xx-cpm2.c
  68 src-boot := $(src-wlib) $(src-plat) empty.c
  69
  70 src-boot := $(addprefix $(obj)/, $(src-boot))
  71 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
  72 obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
  73 obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
  74
  75 quiet_cmd_copy_zlib = COPY    $@
  76       cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
  77
  78 quiet_cmd_copy_zlibheader = COPY    $@
  79       cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
  80 # stddef.h for NULL
  81 quiet_cmd_copy_zliblinuxheader = COPY    $@
  82       cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
  83
  84 $(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
  85         $(call cmd,copy_zlib)
  86
  87 $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
  88         $(call cmd,copy_zlibheader)
  89
  90 $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
  91         $(call cmd,copy_zliblinuxheader)
  92
  93 $(obj)/empty.c:
  94         @touch $@
  95
  96 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
  97         @cp $< $@
  98
  99 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
 100                 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds
 101
 102 quiet_cmd_bootcc = BOOTCC  $@
 103       cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
 104
 105 quiet_cmd_bootas = BOOTAS  $@
 106       cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
 107
 108 quiet_cmd_bootar = BOOTAR  $@
 109       cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
 110
 111 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
 112         $(Q)mkdir -p $(dir $@)
 113         $(call if_changed_dep,bootcc)
 114 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
 115         $(Q)mkdir -p $(dir $@)
 116         $(call if_changed_dep,bootas)
 117
 118 $(obj)/wrapper.a: $(obj-wlib) FORCE
 119         $(call if_changed,bootar)
 120
 121 hostprogs-y     := addnote addRamDisk hack-coff mktree dtc
 122
 123 targets         += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 124 extra-y         := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
 125                    $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
 126
 127 dtstree         := $(srctree)/$(src)/dts
 128
 129 wrapper         :=$(srctree)/$(src)/wrapper
 130 wrapperbits     := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
 131                         $(wrapper) FORCE
 132
 133 #############
 134 # Bits for building dtc
 135 # DTC_GENPARSER      := 1    # Uncomment to rebuild flex/bison output
 136
 137 dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
 138 dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
 139 dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
 140
 141 # prerequisites on generated files needs to be explicit
 142 $(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
 143 $(obj)/dtc-src/dtc-lexer.lex.o:  $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
 144
 145 HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
 146
 147 targets += dtc-src/dtc-parser.tab.c
 148 targets += dtc-src/dtc-lexer.lex.c
 149
 150 clean-files += dtc-src/dtc-parser.tab.h
 151
 152 ifdef DTC_GENPARSER
 153 BISON = bison
 154 FLEX = flex
 155
 156 quiet_cmd_bison = BISON   $@
 157       cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
 158 quiet_cmd_flex = FLEX    $@
 159       cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
 160
 161 $(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
 162      $(call if_changed,bison)
 163
 164 $(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
 165
 166 $(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
 167      $(call if_changed,flex)
 168 endif
 169
 170 #############
 171 # Bits for building various flavours of zImage
 172
 173 ifneq ($(CROSS32_COMPILE),)
 174 CROSSWRAP := -C "$(CROSS32_COMPILE)"
 175 else
 176 ifneq ($(CROSS_COMPILE),)
 177 CROSSWRAP := -C "$(CROSS_COMPILE)"
 178 endif
 179 endif
 180
 181 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
 182 quiet_cmd_wrap  = WRAP    $@
 183       cmd_wrap  =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
 184                 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
 185
 186 image-$(CONFIG_PPC_PSERIES)             += zImage.pseries
 187 image-$(CONFIG_PPC_MAPLE)               += zImage.pseries
 188 image-$(CONFIG_PPC_IBM_CELL_BLADE)      += zImage.pseries
 189 image-$(CONFIG_PPC_PS3)                 += dtbImage.ps3
 190 image-$(CONFIG_PPC_CELLEB)              += zImage.pseries
 191 image-$(CONFIG_PPC_CHRP)                += zImage.chrp
 192 image-$(CONFIG_PPC_EFIKA)               += zImage.chrp
 193 image-$(CONFIG_PPC_PMAC)                += zImage.pmac
 194 image-$(CONFIG_PPC_HOLLY)               += zImage.holly
 195 image-$(CONFIG_PPC_PRPMC2800)           += zImage.prpmc2800
 196 image-$(CONFIG_PPC_ISERIES)             += zImage.iseries
 197 image-$(CONFIG_DEFAULT_UIMAGE)          += uImage
 198
 199 #
 200 # Targets which embed a device tree blob
 201 #
 202 # Theses are default targets to build images which embed device tree blobs.
 203 # They are only required on boards which do not have FDT support in firmware.
 204 # Boards with newish u-boot firmare can use the uImage target above
 205 #
 206
 207 # Board ports in arch/powerpc/platform/40x/Kconfig
 208 image-$(CONFIG_EP405)                   += dtbImage.ep405
 209 image-$(CONFIG_WALNUT)                  += treeImage.walnut
 210
 211 # Board ports in arch/powerpc/platform/44x/Kconfig
 212 image-$(CONFIG_EBONY)                   += treeImage.ebony cuImage.ebony
 213 image-$(CONFIG_BAMBOO)                  += treeImage.bamboo cuImage.bamboo
 214 image-$(CONFIG_SEQUOIA)                 += cuImage.sequoia
 215 image-$(CONFIG_RAINIER)                 += cuImage.rainier
 216 image-$(CONFIG_TAISHAN)                 += cuImage.taishan
 217 image-$(CONFIG_KATMAI)                  += cuImage.katmai
 218 image-$(CONFIG_WARP)                    += cuImage.warp
 219
 220 # Board ports in arch/powerpc/platform/8xx/Kconfig
 221 image-$(CONFIG_PPC_MPC86XADS)           += cuImage.mpc866ads
 222 image-$(CONFIG_PPC_MPC885ADS)           += cuImage.mpc885ads
 223 image-$(CONFIG_PPC_EP88XC)              += dtbImage.ep88xc
 224 image-$(CONFIG_PPC_ADDER875)            += cuImage.adder875-uboot \
 225                                            dtbImage.adder875-redboot
 226
 227 # Board ports in arch/powerpc/platform/52xx/Kconfig
 228 image-$(CONFIG_PPC_LITE5200)            += cuImage.lite5200 cuImage.lite5200b
 229
 230 # Board ports in arch/powerpc/platform/82xx/Kconfig
 231 image-$(CONFIG_MPC8272_ADS)             += cuImage.mpc8272ads
 232 image-$(CONFIG_PQ2FADS)                 += cuImage.pq2fads
 233 image-$(CONFIG_EP8248E)                 += dtbImage.ep8248e
 234
 235 # Board ports in arch/powerpc/platform/83xx/Kconfig
 236 image-$(CONFIG_MPC832x_MDS)             += cuImage.mpc832x_mds
 237 image-$(CONFIG_MPC832x_RDB)             += cuImage.mpc832x_rdb
 238 image-$(CONFIG_MPC834x_ITX)             += cuImage.mpc8349emitx \
 239                                            cuImage.mpc8349emitxgp
 240 image-$(CONFIG_MPC834x_MDS)             += cuImage.mpc834x_mds
 241 image-$(CONFIG_MPC836x_MDS)             += cuImage.mpc836x_mds
 242
 243 # Board ports in arch/powerpc/platform/85xx/Kconfig
 244 image-$(CONFIG_MPC8540_ADS)             += cuImage.mpc8540ads
 245 image-$(CONFIG_MPC8560_ADS)             += cuImage.mpc8560ads
 246 image-$(CONFIG_MPC85xx_CDS)             += cuImage.mpc8541cds \
 247                                            cuImage.mpc8548cds \
 248                                            cuImage.mpc8555cds
 249 image-$(CONFIG_MPC85xx_MDS)             += cuImage.mpc8568mds
 250 image-$(CONFIG_MPC85xx_DS)              += cuImage.mpc8544ds \
 251                                            cuImage.mpc8572ds
 252 image-$(CONFIG_TQM8540)                 += cuImage.tqm8540
 253 image-$(CONFIG_TQM8541)                 += cuImage.tqm8541
 254 image-$(CONFIG_TQM8555)                 += cuImage.tqm8555
 255 image-$(CONFIG_TQM8560)                 += cuImage.tqm8560
 256 image-$(CONFIG_SBC8548)                 += cuImage.sbc8548
 257 image-$(CONFIG_SBC8560)                 += cuImage.sbc8560
 258
 259 # Board ports in arch/powerpc/platform/embedded6xx/Kconfig
 260 image-$(CONFIG_STORCENTER)              += cuImage.storcenter
 261 image-$(CONFIG_MPC7448HPC2)             += cuImage.mpc7448hpc2
 262
 263 # For 32-bit powermacs, build the COFF and miboot images
 264 # as well as the ELF images.
 265 ifeq ($(CONFIG_PPC32),y)
 266 image-$(CONFIG_PPC_PMAC)        += zImage.coff zImage.miboot
 267 endif
 268
 269 initrd-  := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
 270 initrd-y := $(patsubst zImage%, zImage.initrd%, \
 271                 $(patsubst dtbImage%, dtbImage.initrd%, \
 272                 $(patsubst treeImage%, treeImage.initrd%, $(image-y))))
 273 initrd-y := $(filter-out $(image-y), $(initrd-y))
 274 targets += $(image-y) $(initrd-y)
 275
 276 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
 277
 278 # Don't put the ramdisk on the pattern rule; when its missing make will try
 279 # the pattern rule with less dependencies that also matches (even with the
 280 # hard dependency listed).
 281 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
 282         $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
 283
 284 $(obj)/zImage.%: vmlinux $(wrapperbits)
 285         $(call if_changed,wrap,$*)
 286
 287 # dtbImage% - a dtbImage is a zImage with an embedded device tree blob
 288 $(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
 289         $(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
 290
 291 $(obj)/dtbImage.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
 292         $(call if_changed,wrap,$*,$(dtstree)/$*.dts)
 293
 294 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
 295 # prefix
 296 $(obj)/vmlinux.strip: vmlinux
 297         $(STRIP) -s -R .comment $< -o $@
 298
 299 $(obj)/zImage.iseries: vmlinux
 300         $(STRIP) -s -R .comment $< -o $@
 301
 302 $(obj)/uImage: vmlinux $(wrapperbits)
 303         $(call if_changed,wrap,uboot)
 304
 305 $(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
 306         $(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts)
 307
 308 $(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
 309         $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
 310
 311 $(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
 312         $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts)
 313
 314 # If there isn't a platform selected then just strip the vmlinux.
 315 ifeq (,$(image-y))
 316 image-y := vmlinux.strip
 317 endif
 318
 319 $(obj)/zImage:          $(addprefix $(obj)/, $(image-y))
 320         @rm -f $@; ln $< $@
 321 $(obj)/zImage.initrd:   $(addprefix $(obj)/, $(initrd-y))
 322         @rm -f $@; ln $< $@
 323
 324 install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
 325         sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
 326
 327 # anything not in $(targets)
 328 clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
 329         otheros.bld
 330
 331 # clean up files cached by wrapper
 332 clean-kernel := vmlinux.strip vmlinux.bin
 333 clean-kernel += $(addsuffix .gz,$(clean-kernel))
 334 # If not absolute clean-files are relative to $(obj).
 335 clean-files += $(addprefix $(objtree)/, $(clean-kernel))
 336
 337 WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
 338 WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
 339 WRAPPER_BINDIR := /usr/sbin
 340 INSTALL := install
 341
 342 extra-installed         := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
 343 hostprogs-installed     := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
 344 wrapper-installed       := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
 345 dts-installed           := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
 346
 347 all-installed           := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
 348
 349 quiet_cmd_mkdir           = MKDIR   $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
 350       cmd_mkdir           = mkdir -p $@
 351
 352 quiet_cmd_install         = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
 353       cmd_install         = $(INSTALL)  -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
 354
 355 quiet_cmd_install_dts     = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
 356       cmd_install_dts     = $(INSTALL)  -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
 357
 358 quiet_cmd_install_exe     = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
 359       cmd_install_exe     = $(INSTALL)  -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
 360
 361 quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
 362       cmd_install_wrapper = $(INSTALL)  -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
 363                                 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
 364                                           -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
 365
 366
 367 $(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
 368         $(call cmd,mkdir)
 369
 370 $(extra-installed)      : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
 371         $(call cmd,install)
 372
 373 $(hostprogs-installed)  : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
 374         $(call cmd,install_exe)
 375
 376 $(dts-installed)        : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
 377         $(call cmd,install_dts)
 378
 379 $(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
 380         $(call cmd,install_wrapper)
 381
 382 $(obj)/bootwrapper_install: $(all-installed)
 383