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 20all: $(obj)/zImage 21 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) 26BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc 27 28ifdef CONFIG_DEBUG_INFO 29BOOTCFLAGS += -g 30endif 31 32ifeq ($(call cc-option-yn, -fstack-protector),y) 33BOOTCFLAGS += -fno-stack-protector 34endif 35 36BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt 37 38DTS_FLAGS ?= -p 1024 39 40$(obj)/4xx.o: BOOTCFLAGS += -mcpu=405 41$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405 42$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405 43$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405 44$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405 45$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405 46 47 48zlib := inffast.c inflate.c inftrees.c 49zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h 50zliblinuxheader := zlib.h zconf.h zutil.h 51 52$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \ 53 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) 54 55src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c 56src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \ 57 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \ 58 ns16550.c serial.c simple_alloc.c div64.S util.S \ 59 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \ 60 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \ 61 cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \ 62 fsl-soc.c mpc8xx.c pq2.c 63src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \ 64 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \ 65 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \ 66 cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \ 67 cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \ 68 fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \ 69 cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ 70 cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \ 71 virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c 72src-boot := $(src-wlib) $(src-plat) empty.c 73 74src-boot := $(addprefix $(obj)/, $(src-boot)) 75obj-boot := $(addsuffix .o, $(basename $(src-boot))) 76obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) 77obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) 78 79quiet_cmd_copy_zlib = COPY $@ 80 cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 81 82quiet_cmd_copy_zlibheader = COPY $@ 83 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 84# stddef.h for NULL 85quiet_cmd_copy_zliblinuxheader = COPY $@ 86 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 87 88$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 89 $(call cmd,copy_zlib) 90 91$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 92 $(call cmd,copy_zlibheader) 93 94$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/% 95 $(call cmd,copy_zliblinuxheader) 96 97$(obj)/empty.c: 98 @touch $@ 99 100$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S 101 @cp $< $@ 102 103clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ 104 empty.c zImage.coff.lds zImage.ps3.lds zImage.lds 105 106quiet_cmd_bootcc = BOOTCC $@ 107 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $< 108 109quiet_cmd_bootas = BOOTAS $@ 110 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $< 111 112quiet_cmd_bootar = BOOTAR $@ 113 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@ 114 115$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE 116 $(Q)mkdir -p $(dir $@) 117 $(call if_changed_dep,bootcc) 118$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE 119 $(Q)mkdir -p $(dir $@) 120 $(call if_changed_dep,bootas) 121 122$(obj)/wrapper.a: $(obj-wlib) FORCE 123 $(call if_changed,bootar) 124 125hostprogs-y := addnote addRamDisk hack-coff mktree dtc 126 127targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) 128extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ 129 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds 130 131dtstree := $(srctree)/$(src)/dts 132 133wrapper :=$(srctree)/$(src)/wrapper 134wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \ 135 $(wrapper) FORCE 136 137############# 138# Bits for building dtc 139# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output 140 141dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o 142dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o 143dtc-objs := $(addprefix dtc-src/, $(dtc-objs)) 144 145# prerequisites on generated files needs to be explicit 146$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h 147$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h 148 149HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/ 150 151targets += dtc-src/dtc-parser.tab.c 152targets += dtc-src/dtc-lexer.lex.c 153 154clean-files += dtc-src/dtc-parser.tab.h 155 156ifdef DTC_GENPARSER 157BISON = bison 158FLEX = flex 159 160quiet_cmd_bison = BISON $@ 161 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped 162quiet_cmd_flex = FLEX $@ 163 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped 164 165$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE 166 $(call if_changed,bison) 167 168$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c 169 170$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE 171 $(call if_changed,flex) 172endif 173 174############# 175# Bits for building various flavours of zImage 176 177ifneq ($(CROSS32_COMPILE),) 178CROSSWRAP := -C "$(CROSS32_COMPILE)" 179else 180ifneq ($(CROSS_COMPILE),) 181CROSSWRAP := -C "$(CROSS_COMPILE)" 182endif 183endif 184 185# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd 186quiet_cmd_wrap = WRAP $@ 187 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ 188 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux 189 190image-$(CONFIG_PPC_PSERIES) += zImage.pseries 191image-$(CONFIG_PPC_MAPLE) += zImage.pseries 192image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries 193image-$(CONFIG_PPC_PS3) += dtbImage.ps3 194image-$(CONFIG_PPC_CELLEB) += zImage.pseries 195image-$(CONFIG_PPC_CHRP) += zImage.chrp 196image-$(CONFIG_PPC_EFIKA) += zImage.chrp 197image-$(CONFIG_PPC_PMAC) += zImage.pmac 198image-$(CONFIG_PPC_HOLLY) += zImage.holly 199image-$(CONFIG_PPC_PRPMC2800) += dtbImage.prpmc2800 200image-$(CONFIG_PPC_ISERIES) += zImage.iseries 201image-$(CONFIG_DEFAULT_UIMAGE) += uImage 202 203# 204# Targets which embed a device tree blob 205# 206# Theses are default targets to build images which embed device tree blobs. 207# They are only required on boards which do not have FDT support in firmware. 208# Boards with newish u-boot firmare can use the uImage target above 209# 210 211# Board ports in arch/powerpc/platform/40x/Kconfig 212image-$(CONFIG_EP405) += dtbImage.ep405 213image-$(CONFIG_WALNUT) += treeImage.walnut 214 215# Board ports in arch/powerpc/platform/44x/Kconfig 216image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony 217image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo 218image-$(CONFIG_SAM440EP) += cuImage.sam440ep 219image-$(CONFIG_SEQUOIA) += cuImage.sequoia 220image-$(CONFIG_RAINIER) += cuImage.rainier 221image-$(CONFIG_TAISHAN) += cuImage.taishan 222image-$(CONFIG_KATMAI) += cuImage.katmai 223image-$(CONFIG_WARP) += cuImage.warp 224image-$(CONFIG_YOSEMITE) += cuImage.yosemite 225 226# Board ports in arch/powerpc/platform/8xx/Kconfig 227image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads 228image-$(CONFIG_MPC885ADS) += cuImage.mpc885ads 229image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc 230image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ 231 dtbImage.adder875-redboot 232 233# Board ports in arch/powerpc/platform/52xx/Kconfig 234image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b 235 236# Board ports in arch/powerpc/platform/82xx/Kconfig 237image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads 238image-$(CONFIG_PQ2FADS) += cuImage.pq2fads 239image-$(CONFIG_EP8248E) += dtbImage.ep8248e 240 241# Board ports in arch/powerpc/platform/83xx/Kconfig 242image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds 243image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb 244image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \ 245 cuImage.mpc8349emitxgp 246image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds 247image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds 248image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot 249 250# Board ports in arch/powerpc/platform/85xx/Kconfig 251image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads 252image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads 253image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \ 254 cuImage.mpc8548cds \ 255 cuImage.mpc8555cds 256image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds 257image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \ 258 cuImage.mpc8572ds 259image-$(CONFIG_TQM8540) += cuImage.tqm8540 260image-$(CONFIG_TQM8541) += cuImage.tqm8541 261image-$(CONFIG_TQM8548) += cuImage.tqm8548 262image-$(CONFIG_TQM8555) += cuImage.tqm8555 263image-$(CONFIG_TQM8560) += cuImage.tqm8560 264image-$(CONFIG_SBC8548) += cuImage.sbc8548 265image-$(CONFIG_SBC8560) += cuImage.sbc8560 266image-$(CONFIG_KSI8560) += cuImage.ksi8560 267 268# Board ports in arch/powerpc/platform/embedded6xx/Kconfig 269image-$(CONFIG_STORCENTER) += cuImage.storcenter 270image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 271image-$(CONFIG_PPC_C2K) += cuImage.c2k 272 273# For 32-bit powermacs, build the COFF and miboot images 274# as well as the ELF images. 275ifeq ($(CONFIG_PPC32),y) 276image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot 277endif 278 279# Allow extra targets to be added to the defconfig 280image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS)) 281 282initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) 283initrd-y := $(patsubst zImage%, zImage.initrd%, \ 284 $(patsubst dtbImage%, dtbImage.initrd%, \ 285 $(patsubst simpleImage%, simpleImage.initrd%, \ 286 $(patsubst treeImage%, treeImage.initrd%, $(image-y))))) 287initrd-y := $(filter-out $(image-y), $(initrd-y)) 288targets += $(image-y) $(initrd-y) 289 290$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz 291 292# Don't put the ramdisk on the pattern rule; when its missing make will try 293# the pattern rule with less dependencies that also matches (even with the 294# hard dependency listed). 295$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) 296 $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) 297 298$(obj)/zImage.%: vmlinux $(wrapperbits) 299 $(call if_changed,wrap,$*) 300 301# dtbImage% - a dtbImage is a zImage with an embedded device tree blob 302$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb 303 $(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 304 305$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb 306 $(call if_changed,wrap,$*,,$(obj)/$*.dtb) 307 308# This cannot be in the root of $(src) as the zImage rule always adds a $(obj) 309# prefix 310$(obj)/vmlinux.strip: vmlinux 311 $(STRIP) -s -R .comment $< -o $@ 312 313$(obj)/zImage.iseries: vmlinux 314 $(STRIP) -s -R .comment $< -o $@ 315 316$(obj)/uImage: vmlinux $(wrapperbits) 317 $(call if_changed,wrap,uboot) 318 319$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 320 $(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb) 321 322$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) 323 $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 324 325$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 326 $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb) 327 328$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) 329 $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 330 331$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 332 $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb) 333 334# Rule to build device tree blobs 335$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc 336 $(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts 337 338# If there isn't a platform selected then just strip the vmlinux. 339ifeq (,$(image-y)) 340image-y := vmlinux.strip 341endif 342 343$(obj)/zImage: $(addprefix $(obj)/, $(image-y)) 344 @rm -f $@; ln $< $@ 345$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) 346 @rm -f $@; ln $< $@ 347 348install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y)) 349 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $< 350 351# anything not in $(targets) 352clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \ 353 zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \ 354 zImage.iseries zImage.miboot zImage.pmac zImage.pseries \ 355 otheros.bld *.dtb 356 357# clean up files cached by wrapper 358clean-kernel := vmlinux.strip vmlinux.bin 359clean-kernel += $(addsuffix .gz,$(clean-kernel)) 360# If not absolute clean-files are relative to $(obj). 361clean-files += $(addprefix $(objtree)/, $(clean-kernel)) 362 363WRAPPER_OBJDIR := /usr/lib/kernel-wrapper 364WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts 365WRAPPER_BINDIR := /usr/sbin 366INSTALL := install 367 368extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y)) 369hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y)) 370wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper 371dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts)) 372 373all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed) 374 375quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@) 376 cmd_mkdir = mkdir -p $@ 377 378quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@) 379 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@ 380 381quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@) 382 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@ 383 384quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 385 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@ 386 387quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 388 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\ 389 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \ 390 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \ 391 392 393$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR): 394 $(call cmd,mkdir) 395 396$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR) 397 $(call cmd,install) 398 399$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR) 400 $(call cmd,install_exe) 401 402$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR) 403 $(call cmd,install_dts) 404 405$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR) 406 $(call cmd,install_wrapper) 407 408$(obj)/bootwrapper_install: $(all-installed) 409 410