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 cuboot-bamboo.c \ 64 fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \ 65 cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \ 66 cuboot-warp.c cuboot-85xx-cpm2.c 67src-boot := $(src-wlib) $(src-plat) empty.c 68 69src-boot := $(addprefix $(obj)/, $(src-boot)) 70obj-boot := $(addsuffix .o, $(basename $(src-boot))) 71obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) 72obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) 73 74quiet_cmd_copy_zlib = COPY $@ 75 cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 76 77quiet_cmd_copy_zlibheader = COPY $@ 78 cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 79# stddef.h for NULL 80quiet_cmd_copy_zliblinuxheader = COPY $@ 81 cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@ 82 83$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 84 $(call cmd,copy_zlib) 85 86$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/% 87 $(call cmd,copy_zlibheader) 88 89$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/% 90 $(call cmd,copy_zliblinuxheader) 91 92$(obj)/empty.c: 93 @touch $@ 94 95$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S 96 @cp $< $@ 97 98clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ 99 empty.c zImage zImage.coff.lds zImage.ps3.lds zImage.lds 100 101quiet_cmd_bootcc = BOOTCC $@ 102 cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $< 103 104quiet_cmd_bootas = BOOTAS $@ 105 cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $< 106 107quiet_cmd_bootar = BOOTAR $@ 108 cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@ 109 110$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE 111 $(Q)mkdir -p $(dir $@) 112 $(call if_changed_dep,bootcc) 113$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE 114 $(Q)mkdir -p $(dir $@) 115 $(call if_changed_dep,bootas) 116 117$(obj)/wrapper.a: $(obj-wlib) FORCE 118 $(call if_changed,bootar) 119 120hostprogs-y := addnote addRamDisk hack-coff mktree dtc 121 122targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) 123extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ 124 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds 125 126wrapper :=$(srctree)/$(src)/wrapper 127wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \ 128 $(wrapper) FORCE 129 130############# 131# Bits for building dtc 132# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output 133 134dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o 135dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o 136dtc-objs := $(addprefix dtc-src/, $(dtc-objs)) 137 138# prerequisites on generated files needs to be explicit 139$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h 140$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h 141 142HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/ 143 144targets += dtc-src/dtc-parser.tab.c 145targets += dtc-src/dtc-lexer.lex.c 146 147ifdef DTC_GENPARSER 148BISON = bison 149FLEX = flex 150 151quiet_cmd_bison = BISON $@ 152 cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped 153quiet_cmd_flex = FLEX $@ 154 cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped 155 156$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE 157 $(call if_changed,bison) 158 159$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c 160 161$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE 162 $(call if_changed,flex) 163endif 164 165############# 166# Bits for building various flavours of zImage 167 168ifneq ($(CROSS32_COMPILE),) 169CROSSWRAP := -C "$(CROSS32_COMPILE)" 170else 171ifneq ($(CROSS_COMPILE),) 172CROSSWRAP := -C "$(CROSS_COMPILE)" 173endif 174endif 175 176# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd 177quiet_cmd_wrap = WRAP $@ 178 cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ 179 $(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux 180 181image-$(CONFIG_PPC_PSERIES) += zImage.pseries 182image-$(CONFIG_PPC_MAPLE) += zImage.pseries 183image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries 184image-$(CONFIG_PPC_PS3) += zImage.ps3 185image-$(CONFIG_PPC_CELLEB) += zImage.pseries 186image-$(CONFIG_PPC_CHRP) += zImage.chrp 187image-$(CONFIG_PPC_EFIKA) += zImage.chrp 188image-$(CONFIG_PPC_PMAC) += zImage.pmac 189image-$(CONFIG_PPC_HOLLY) += zImage.holly 190image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800 191image-$(CONFIG_PPC_ISERIES) += zImage.iseries 192image-$(CONFIG_DEFAULT_UIMAGE) += uImage 193 194ifneq ($(CONFIG_DEVICE_TREE),"") 195image-$(CONFIG_PPC_8xx) += cuImage.8xx 196image-$(CONFIG_PPC_EP88XC) += zImage.ep88xc 197image-$(CONFIG_EP405) += zImage.ep405 198image-$(CONFIG_8260) += cuImage.pq2 199image-$(CONFIG_EP8248E) += zImage.ep8248e 200image-$(CONFIG_PPC_MPC52xx) += cuImage.52xx 201image-$(CONFIG_STORCENTER) += cuImage.824x 202image-$(CONFIG_PPC_83xx) += cuImage.83xx 203image-$(CONFIG_PPC_85xx) += cuImage.85xx 204ifeq ($(CONFIG_CPM2),y) 205image-$(CONFIG_PPC_85xx) += cuImage.85xx-cpm2 206endif 207image-$(CONFIG_MPC7448HPC2) += cuImage.hpc2 208image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony 209image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo 210image-$(CONFIG_SEQUOIA) += cuImage.sequoia 211image-$(CONFIG_RAINIER) += cuImage.rainier 212image-$(CONFIG_WALNUT) += treeImage.walnut 213image-$(CONFIG_TAISHAN) += cuImage.taishan 214image-$(CONFIG_KATMAI) += cuImage.katmai 215image-$(CONFIG_WARP) += cuImage.warp 216endif 217 218ifneq ($(CONFIG_REDBOOT),"") 219image-$(CONFIG_PPC_8xx) += zImage.redboot-8xx 220endif 221 222# For 32-bit powermacs, build the COFF and miboot images 223# as well as the ELF images. 224ifeq ($(CONFIG_PPC32),y) 225image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot 226endif 227 228initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) 229initrd-y := $(patsubst zImage%, zImage.initrd%, \ 230 $(patsubst treeImage%, treeImage.initrd%, $(image-y))) 231initrd-y := $(filter-out $(image-y), $(initrd-y)) 232targets += $(image-y) $(initrd-y) 233 234$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz 235 236# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an 237# empty string, define 'dts' to be path to the dts 238# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them 239ifeq ($(CONFIG_WANT_DEVICE_TREE),y) 240ifneq ($(CONFIG_DEVICE_TREE),"") 241dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\ 242 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%) 243endif 244endif 245 246# Don't put the ramdisk on the pattern rule; when its missing make will try 247# the pattern rule with less dependencies that also matches (even with the 248# hard dependency listed). 249$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts) 250 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz) 251 252$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts) 253 $(call if_changed,wrap,$*,$(dts)) 254 255# This cannot be in the root of $(src) as the zImage rule always adds a $(obj) 256# prefix 257$(obj)/vmlinux.strip: vmlinux 258 $(STRIP) -s -R .comment $< -o $@ 259 260$(obj)/zImage.iseries: vmlinux 261 $(STRIP) -s -R .comment $< -o $@ 262 263$(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts 264 $(STRIP) -s -R .comment $< -o vmlinux.strip 265 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,) 266 267$(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz 268 $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz) 269 270$(obj)/uImage: vmlinux $(wrapperbits) 271 $(call if_changed,wrap,uboot) 272 273$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits) 274 $(call if_changed,wrap,cuboot-$*,$(dts)) 275 276$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits) 277 $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz) 278 279$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits) 280 $(call if_changed,wrap,treeboot-$*,$(dts)) 281 282# If there isn't a platform selected then just strip the vmlinux. 283ifeq (,$(image-y)) 284image-y := vmlinux.strip 285endif 286 287$(obj)/zImage: $(addprefix $(obj)/, $(image-y)) 288 @rm -f $@; ln $< $@ 289$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) 290 @rm -f $@; ln $< $@ 291 292install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y)) 293 sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $< 294 295# anything not in $(targets) 296clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \ 297 otheros.bld 298 299# clean up files cached by wrapper 300clean-kernel := vmlinux.strip vmlinux.bin 301clean-kernel += $(addsuffix .gz,$(clean-kernel)) 302# If not absolute clean-files are relative to $(obj). 303clean-files += $(addprefix $(objtree)/, $(clean-kernel)) 304 305WRAPPER_OBJDIR := /usr/lib/kernel-wrapper 306WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts 307WRAPPER_BINDIR := /usr/sbin 308INSTALL := install 309 310extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y)) 311hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y)) 312wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper 313dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts)) 314 315all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed) 316 317quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@) 318 cmd_mkdir = mkdir -p $@ 319 320quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@) 321 cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@ 322 323quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@) 324 cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@ 325 326quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 327 cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@ 328 329quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@) 330 cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\ 331 sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \ 332 -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \ 333 334 335$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR): 336 $(call cmd,mkdir) 337 338$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR) 339 $(call cmd,install) 340 341$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR) 342 $(call cmd,install_exe) 343 344$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR) 345 $(call cmd,install_dts) 346 347$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR) 348 $(call cmd,install_wrapper) 349 350$(obj)/bootwrapper_install: $(all-installed) 351 352