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)/$(src)/libfdt 37 38$(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$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405 44 45 46zlib := inffast.c inflate.c inftrees.c 47zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h 48zliblinuxheader := zlib.h zconf.h zutil.h 49 50$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \ 51 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) 52 53src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c 54src-wlib := string.S crt0.S stdio.c main.c \ 55 $(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \ 56 ns16550.c serial.c simple_alloc.c div64.S util.S \ 57 gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \ 58 4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \ 59 cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \ 60 fsl-soc.c mpc8xx.c pq2.c 61src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \ 62 cuboot-ebony.c treeboot-ebony.c prpmc2800.c \ 63 ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \ 64 cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \ 65 cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \ 66 fixed-head.S ep88xc.c ep405.c \ 67 cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ 68 cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \ 69 virtex405-head.S 70src-boot := $(src-wlib) $(src-plat) empty.c 71 72src-boot := $(addprefix $(obj)/, $(src-boot)) 73obj-boot := $(addsuffix .o, $(basename $(src-boot))) 74obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) 75obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) 76 77quiet_cmd_copy_zlib = COPY $@ 78 cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 79 80quiet_cmd_copy_zlibheader = COPY $@ 81 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 82# stddef.h for NULL 83quiet_cmd_copy_zliblinuxheader = COPY $@ 84 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 85 86$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 87 $(call cmd,copy_zlib) 88 89$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 90 $(call cmd,copy_zlibheader) 91 92$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/% 93 $(call cmd,copy_zliblinuxheader) 94 95$(obj)/empty.c: 96 @touch $@ 97 98$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S 99 @cp $< $@ 100 101clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ 102 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds 103 104quiet_cmd_bootcc = BOOTCC $@ 105 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $< 106 107quiet_cmd_bootas = BOOTAS $@ 108 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $< 109 110quiet_cmd_bootar = BOOTAR $@ 111 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@ 112 113$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE 114 $(Q)mkdir -p $(dir $@) 115 $(call if_changed_dep,bootcc) 116$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE 117 $(Q)mkdir -p $(dir $@) 118 $(call if_changed_dep,bootas) 119 120$(obj)/wrapper.a: $(obj-wlib) FORCE 121 $(call if_changed,bootar) 122 123hostprogs-y := addnote addRamDisk hack-coff mktree dtc 124 125targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) 126extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ 127 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds 128 129dtstree := $(srctree)/$(src)/dts 130 131wrapper :=$(srctree)/$(src)/wrapper 132wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \ 133 $(wrapper) FORCE 134 135############# 136# Bits for building dtc 137# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output 138 139dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o 140dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o 141dtc-objs := $(addprefix dtc-src/, $(dtc-objs)) 142 143# prerequisites on generated files needs to be explicit 144$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h 145$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h 146 147HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/ 148 149targets += dtc-src/dtc-parser.tab.c 150targets += dtc-src/dtc-lexer.lex.c 151 152clean-files += dtc-src/dtc-parser.tab.h 153 154ifdef DTC_GENPARSER 155BISON = bison 156FLEX = flex 157 158quiet_cmd_bison = BISON $@ 159 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped 160quiet_cmd_flex = FLEX $@ 161 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped 162 163$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE 164 $(call if_changed,bison) 165 166$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c 167 168$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE 169 $(call if_changed,flex) 170endif 171 172############# 173# Bits for building various flavours of zImage 174 175ifneq ($(CROSS32_COMPILE),) 176CROSSWRAP := -C "$(CROSS32_COMPILE)" 177else 178ifneq ($(CROSS_COMPILE),) 179CROSSWRAP := -C "$(CROSS_COMPILE)" 180endif 181endif 182 183# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd 184quiet_cmd_wrap = WRAP $@ 185 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ 186 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux 187 188image-$(CONFIG_PPC_PSERIES) += zImage.pseries 189image-$(CONFIG_PPC_MAPLE) += zImage.pseries 190image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries 191image-$(CONFIG_PPC_PS3) += dtbImage.ps3 192image-$(CONFIG_PPC_CELLEB) += zImage.pseries 193image-$(CONFIG_PPC_CHRP) += zImage.chrp 194image-$(CONFIG_PPC_EFIKA) += zImage.chrp 195image-$(CONFIG_PPC_PMAC) += zImage.pmac 196image-$(CONFIG_PPC_HOLLY) += zImage.holly 197image-$(CONFIG_PPC_PRPMC2800) += dtbImage.prpmc2800 198image-$(CONFIG_PPC_ISERIES) += zImage.iseries 199image-$(CONFIG_DEFAULT_UIMAGE) += uImage 200 201# 202# Targets which embed a device tree blob 203# 204# Theses are default targets to build images which embed device tree blobs. 205# They are only required on boards which do not have FDT support in firmware. 206# Boards with newish u-boot firmare can use the uImage target above 207# 208 209# Board ports in arch/powerpc/platform/40x/Kconfig 210image-$(CONFIG_EP405) += dtbImage.ep405 211image-$(CONFIG_WALNUT) += treeImage.walnut 212 213# Board ports in arch/powerpc/platform/44x/Kconfig 214image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony 215image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo 216image-$(CONFIG_SEQUOIA) += cuImage.sequoia 217image-$(CONFIG_RAINIER) += cuImage.rainier 218image-$(CONFIG_TAISHAN) += cuImage.taishan 219image-$(CONFIG_KATMAI) += cuImage.katmai 220image-$(CONFIG_WARP) += cuImage.warp 221image-$(CONFIG_YOSEMITE) += cuImage.yosemite 222 223# Board ports in arch/powerpc/platform/8xx/Kconfig 224image-$(CONFIG_PPC_MPC86XADS) += cuImage.mpc866ads 225image-$(CONFIG_PPC_MPC885ADS) += cuImage.mpc885ads 226image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc 227image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ 228 dtbImage.adder875-redboot 229 230# Board ports in arch/powerpc/platform/52xx/Kconfig 231image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b 232 233# Board ports in arch/powerpc/platform/82xx/Kconfig 234image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads 235image-$(CONFIG_PQ2FADS) += cuImage.pq2fads 236image-$(CONFIG_EP8248E) += dtbImage.ep8248e 237 238# Board ports in arch/powerpc/platform/83xx/Kconfig 239image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds 240image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb 241image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \ 242 cuImage.mpc8349emitxgp 243image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds 244image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds 245 246# Board ports in arch/powerpc/platform/85xx/Kconfig 247image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads 248image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads 249image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \ 250 cuImage.mpc8548cds \ 251 cuImage.mpc8555cds 252image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds 253image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \ 254 cuImage.mpc8572ds 255image-$(CONFIG_TQM8540) += cuImage.tqm8540 256image-$(CONFIG_TQM8541) += cuImage.tqm8541 257image-$(CONFIG_TQM8555) += cuImage.tqm8555 258image-$(CONFIG_TQM8560) += cuImage.tqm8560 259image-$(CONFIG_SBC8548) += cuImage.sbc8548 260image-$(CONFIG_SBC8560) += cuImage.sbc8560 261image-$(CONFIG_KSI8560) += cuImage.ksi8560 262 263# Board ports in arch/powerpc/platform/embedded6xx/Kconfig 264image-$(CONFIG_STORCENTER) += cuImage.storcenter 265image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 266 267# For 32-bit powermacs, build the COFF and miboot images 268# as well as the ELF images. 269ifeq ($(CONFIG_PPC32),y) 270image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot 271endif 272 273initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) 274initrd-y := $(patsubst zImage%, zImage.initrd%, \ 275 $(patsubst dtbImage%, dtbImage.initrd%, \ 276 $(patsubst treeImage%, treeImage.initrd%, $(image-y)))) 277initrd-y := $(filter-out $(image-y), $(initrd-y)) 278targets += $(image-y) $(initrd-y) 279 280$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz 281 282# Don't put the ramdisk on the pattern rule; when its missing make will try 283# the pattern rule with less dependencies that also matches (even with the 284# hard dependency listed). 285$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) 286 $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) 287 288$(obj)/zImage.%: vmlinux $(wrapperbits) 289 $(call if_changed,wrap,$*) 290 291# dtbImage% - a dtbImage is a zImage with an embedded device tree blob 292$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb 293 $(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 294 295$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb 296 $(call if_changed,wrap,$*,,$(obj)/$*.dtb) 297 298# This cannot be in the root of $(src) as the zImage rule always adds a $(obj) 299# prefix 300$(obj)/vmlinux.strip: vmlinux 301 $(STRIP) -s -R .comment $< -o $@ 302 303$(obj)/zImage.iseries: vmlinux 304 $(STRIP) -s -R .comment $< -o $@ 305 306$(obj)/uImage: vmlinux $(wrapperbits) 307 $(call if_changed,wrap,uboot) 308 309$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 310 $(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb) 311 312$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) 313 $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 314 315$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 316 $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb) 317 318$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) 319 $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) 320 321$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) 322 $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb) 323 324# Rule to build device tree blobs 325$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc 326 $(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts 327 328# If there isn't a platform selected then just strip the vmlinux. 329ifeq (,$(image-y)) 330image-y := vmlinux.strip 331endif 332 333$(obj)/zImage: $(addprefix $(obj)/, $(image-y)) 334 @rm -f $@; ln $< $@ 335$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) 336 @rm -f $@; ln $< $@ 337 338install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y)) 339 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $< 340 341# anything not in $(targets) 342clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \ 343 otheros.bld *.dtb 344 345# clean up files cached by wrapper 346clean-kernel := vmlinux.strip vmlinux.bin 347clean-kernel += $(addsuffix .gz,$(clean-kernel)) 348# If not absolute clean-files are relative to $(obj). 349clean-files += $(addprefix $(objtree)/, $(clean-kernel)) 350 351WRAPPER_OBJDIR := /usr/lib/kernel-wrapper 352WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts 353WRAPPER_BINDIR := /usr/sbin 354INSTALL := install 355 356extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y)) 357hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y)) 358wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper 359dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts)) 360 361all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed) 362 363quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@) 364 cmd_mkdir = mkdir -p $@ 365 366quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@) 367 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@ 368 369quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@) 370 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@ 371 372quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 373 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@ 374 375quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 376 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\ 377 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \ 378 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \ 379 380 381$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR): 382 $(call cmd,mkdir) 383 384$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR) 385 $(call cmd,install) 386 387$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR) 388 $(call cmd,install_exe) 389 390$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR) 391 $(call cmd,install_dts) 392 393$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR) 394 $(call cmd,install_wrapper) 395 396$(obj)/bootwrapper_install: $(all-installed) 397 398