arch/powerpc/boot/Makefile

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