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=440 39$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440 40$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440 41$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440 42$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405 43 44 45zlib := inffast.c inflate.c inftrees.c 46zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h 47zliblinuxheader := zlib.h zconf.h zutil.h 48 49$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \ 50 $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) 51 52src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c 53src-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 60src-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 68src-boot := $(src-wlib) $(src-plat) empty.c 69 70src-boot := $(addprefix $(obj)/, $(src-boot)) 71obj-boot := $(addsuffix .o, $(basename $(src-boot))) 72obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) 73obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) 74 75quiet_cmd_copy_zlib = COPY $@ 76 cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 77 78quiet_cmd_copy_zlibheader = COPY $@ 79 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 80# stddef.h for NULL 81quiet_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 99clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ 100 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds 101 102quiet_cmd_bootcc = BOOTCC $@ 103 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $< 104 105quiet_cmd_bootas = BOOTAS $@ 106 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $< 107 108quiet_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 121hostprogs-y := addnote addRamDisk hack-coff mktree dtc 122 123targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) 124extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ 125 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds 126 127dtstree := $(srctree)/$(src)/dts 128 129wrapper :=$(srctree)/$(src)/wrapper 130wrapperbits := $(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 137dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o 138dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o 139dtc-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 $(obj)/dtc-src/dtc-parser.tab.h 144 145HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/ 146 147targets += dtc-src/dtc-parser.tab.c 148targets += dtc-src/dtc-lexer.lex.c 149 150ifdef DTC_GENPARSER 151BISON = bison 152FLEX = flex 153 154quiet_cmd_bison = BISON $@ 155 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped 156quiet_cmd_flex = FLEX $@ 157 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped 158 159$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE 160 $(call if_changed,bison) 161 162$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c 163 164$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE 165 $(call if_changed,flex) 166endif 167 168############# 169# Bits for building various flavours of zImage 170 171ifneq ($(CROSS32_COMPILE),) 172CROSSWRAP := -C "$(CROSS32_COMPILE)" 173else 174ifneq ($(CROSS_COMPILE),) 175CROSSWRAP := -C "$(CROSS_COMPILE)" 176endif 177endif 178 179# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd 180quiet_cmd_wrap = WRAP $@ 181 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ 182 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux 183 184image-$(CONFIG_PPC_PSERIES) += zImage.pseries 185image-$(CONFIG_PPC_MAPLE) += zImage.pseries 186image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries 187image-$(CONFIG_PPC_PS3) += zImage-dtb.ps3 188image-$(CONFIG_PPC_CELLEB) += zImage.pseries 189image-$(CONFIG_PPC_CHRP) += zImage.chrp 190image-$(CONFIG_PPC_EFIKA) += zImage.chrp 191image-$(CONFIG_PPC_PMAC) += zImage.pmac 192image-$(CONFIG_PPC_HOLLY) += zImage.holly 193image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800 194image-$(CONFIG_PPC_ISERIES) += zImage.iseries 195image-$(CONFIG_DEFAULT_UIMAGE) += uImage 196 197# 198# Targets which embed a device tree blob 199# 200# Theses are default targets to build images which embed device tree blobs. 201# They are only required on boards which do not have FDT support in firmware. 202# Boards with newish u-boot firmare can use the uImage target above 203# 204 205# Board ports in arch/powerpc/platform/40x/Kconfig 206image-$(CONFIG_EP405) += zImage-dtb.ep405 207image-$(CONFIG_WALNUT) += treeImage.walnut 208 209# Board ports in arch/powerpc/platform/44x/Kconfig 210image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony 211image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo 212image-$(CONFIG_SEQUOIA) += cuImage.sequoia 213image-$(CONFIG_RAINIER) += cuImage.rainier 214image-$(CONFIG_TAISHAN) += cuImage.taishan 215image-$(CONFIG_KATMAI) += cuImage.katmai 216image-$(CONFIG_WARP) += cuImage.warp 217 218# Board ports in arch/powerpc/platform/8xx/Kconfig 219image-$(CONFIG_PPC_MPC86XADS) += cuImage.mpc866ads 220image-$(CONFIG_PPC_MPC885ADS) += cuImage.mpc885ads 221image-$(CONFIG_PPC_EP88XC) += zImage-dtb.ep88xc 222image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ 223 zImage-dtb.adder875-redboot 224 225# Board ports in arch/powerpc/platform/52xx/Kconfig 226image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b 227 228# Board ports in arch/powerpc/platform/82xx/Kconfig 229image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads 230image-$(CONFIG_PQ2FADS) += cuImage.pq2fads 231image-$(CONFIG_EP8248E) += zImage-dtb.ep8248e 232 233# Board ports in arch/powerpc/platform/83xx/Kconfig 234image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds 235image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb 236image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \ 237 cuImage.mpc8349emitxgp 238image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds 239image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds 240 241# Board ports in arch/powerpc/platform/85xx/Kconfig 242image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads 243image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads 244image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \ 245 cuImage.mpc8548cds \ 246 cuImage.mpc8555cds 247image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds 248image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \ 249 cuImage.mpc8572ds 250image-$(CONFIG_TQM8540) += cuImage.tqm8540 251image-$(CONFIG_TQM8541) += cuImage.tqm8541 252image-$(CONFIG_TQM8555) += cuImage.tqm8555 253image-$(CONFIG_TQM8560) += cuImage.tqm8560 254image-$(CONFIG_SBC8548) += cuImage.tqm8548 255image-$(CONFIG_SBC8560) += cuImage.tqm8560 256 257# Board ports in arch/powerpc/platform/embedded6xx/Kconfig 258image-$(CONFIG_STORCENTER) += cuImage.storcenter 259image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 260 261# For 32-bit powermacs, build the COFF and miboot images 262# as well as the ELF images. 263ifeq ($(CONFIG_PPC32),y) 264image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot 265endif 266 267initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) 268initrd-y := $(patsubst zImage%, zImage.initrd%, \ 269 $(patsubst treeImage%, treeImage.initrd%, $(image-y))) 270initrd-y := $(filter-out $(image-y), $(initrd-y)) 271targets += $(image-y) $(initrd-y) 272 273$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz 274 275# Don't put the ramdisk on the pattern rule; when its missing make will try 276# the pattern rule with less dependencies that also matches (even with the 277# hard dependency listed). 278$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) 279 $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) 280 281$(obj)/zImage.%: vmlinux $(wrapperbits) 282 $(call if_changed,wrap,$*) 283 284$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts 285 $(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz) 286 287$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts 288 $(call if_changed,wrap,$*,$(dtstree)/$*.dts) 289 290# This cannot be in the root of $(src) as the zImage rule always adds a $(obj) 291# prefix 292$(obj)/vmlinux.strip: vmlinux 293 $(STRIP) -s -R .comment $< -o $@ 294 295$(obj)/zImage.iseries: vmlinux 296 $(STRIP) -s -R .comment $< -o $@ 297 298$(obj)/uImage: vmlinux $(wrapperbits) 299 $(call if_changed,wrap,uboot) 300 301$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits) 302 $(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts) 303 304$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits) 305 $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz) 306 307$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits) 308 $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts) 309 310# If there isn't a platform selected then just strip the vmlinux. 311ifeq (,$(image-y)) 312image-y := vmlinux.strip 313endif 314 315$(obj)/zImage: $(addprefix $(obj)/, $(image-y)) 316 @rm -f $@; ln $< $@ 317$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) 318 @rm -f $@; ln $< $@ 319 320install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y)) 321 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $< 322 323# anything not in $(targets) 324clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \ 325 otheros.bld 326 327# clean up files cached by wrapper 328clean-kernel := vmlinux.strip vmlinux.bin 329clean-kernel += $(addsuffix .gz,$(clean-kernel)) 330# If not absolute clean-files are relative to $(obj). 331clean-files += $(addprefix $(objtree)/, $(clean-kernel)) 332 333WRAPPER_OBJDIR := /usr/lib/kernel-wrapper 334WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts 335WRAPPER_BINDIR := /usr/sbin 336INSTALL := install 337 338extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y)) 339hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y)) 340wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper 341dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts)) 342 343all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed) 344 345quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@) 346 cmd_mkdir = mkdir -p $@ 347 348quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@) 349 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@ 350 351quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@) 352 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@ 353 354quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 355 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@ 356 357quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 358 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\ 359 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \ 360 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \ 361 362 363$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR): 364 $(call cmd,mkdir) 365 366$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR) 367 $(call cmd,install) 368 369$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR) 370 $(call cmd,install_exe) 371 372$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR) 373 $(call cmd,install_dts) 374 375$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR) 376 $(call cmd,install_wrapper) 377 378$(obj)/bootwrapper_install: $(all-installed) 379 380