# Makefile for making ELF bootable images for booting on CHRP
# using Open Firmware.
#
# Geert Uytterhoeven September 1997
#
# Based on coffboot by Paul Mackerras
# Simplified for ppc64 by Todd Inglett
#
# NOTE: this code is built for 32 bit in ELF32 format even though
# it packages a 64 bit kernel. We do this to simplify the
# bootloader and increase compatibility with OpenFirmware.
#
# To this end we need to define BOOTCC, etc, as the tools
# needed to build the 32 bit image. That's normally the same
# compiler for the rest of the kernel, with the -m32 flag added.
# To make it easier to setup a cross compiler,
# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
# in the toplevel makefile.
all: $(obj)/zImage
BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -Os -msoft-float -pipe \
-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
-isystem $(shell $(CROSS32CC) -print-file-name=include)
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
ifdef CONFIG_DEBUG_INFO
BOOTCFLAGS += -g
endif
ifeq ($(call cc-option-yn, -fstack-protector),y)
BOOTCFLAGS += -fno-stack-protector
endif
BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt
DTS_FLAGS ?= -p 1024
$(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405
zlib := inffast.c inflate.c inftrees.c
zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
zliblinuxheader := zlib.h zconf.h zutil.h
$(addprefix $(obj)/,$(zlib) cuboot-c2k.o gunzip_util.o main.o prpmc2800.o): \
$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
$(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
ns16550.c serial.c simple_alloc.c div64.S util.S \
gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
fsl-soc.c mpc8xx.c pq2.c
src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \
cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c \
cuboot-acadia.c
src-boot := $(src-wlib) $(src-plat) empty.c
src-boot := $(addprefix $(obj)/, $(src-boot))
obj-boot := $(addsuffix .o, $(basename $(src-boot)))
obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
quiet_cmd_copy_zlib = COPY $@
cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
quiet_cmd_copy_zlibheader = COPY $@
cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
# stddef.h for NULL
quiet_cmd_copy_zliblinuxheader = COPY $@
cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_zlib)
$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
$(call cmd,copy_zlibheader)
$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
$(call cmd,copy_zliblinuxheader)
$(obj)/empty.c:
@touch $@
$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
@cp $< $@
clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
empty.c zImage.coff.lds zImage.ps3.lds zImage.lds
quiet_cmd_bootcc = BOOTCC $@
cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
quiet_cmd_bootas = BOOTAS $@
cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
quiet_cmd_bootar = BOOTAR $@
cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootcc)
$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,bootas)
$(obj)/wrapper.a: $(obj-wlib) FORCE
$(call if_changed,bootar)
hostprogs-y := addnote addRamDisk hack-coff mktree dtc
targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
dtstree := $(srctree)/$(src)/dts
wrapper :=$(srctree)/$(src)/wrapper
wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
$(wrapper) FORCE
#############
# Bits for building dtc
# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
dtc-objs := $(addprefix dtc-src/, $(dtc-objs))
# prerequisites on generated files needs to be explicit
$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h
HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
targets += dtc-src/dtc-parser.tab.c
targets += dtc-src/dtc-lexer.lex.c
clean-files += dtc-src/dtc-parser.tab.h
ifdef DTC_GENPARSER
BISON = bison
FLEX = flex
quiet_cmd_bison = BISON $@
cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
quiet_cmd_flex = FLEX $@
cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped
$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
$(call if_changed,bison)
$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c
$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
$(call if_changed,flex)
endif
#############
# Bits for building various flavours of zImage
ifneq ($(CROSS32_COMPILE),)
CROSSWRAP := -C "$(CROSS32_COMPILE)"
else
ifneq ($(CROSS_COMPILE),)
CROSSWRAP := -C "$(CROSS_COMPILE)"
endif
endif
# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
quiet_cmd_wrap = WRAP $@
cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
$(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
image-$(CONFIG_PPC_PSERIES) += zImage.pseries
image-$(CONFIG_PPC_MAPLE) += zImage.pseries
image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
image-$(CONFIG_PPC_PS3) += dtbImage.ps3
image-$(CONFIG_PPC_CELLEB) += zImage.pseries
image-$(CONFIG_PPC_CHRP) += zImage.chrp
image-$(CONFIG_PPC_EFIKA) += zImage.chrp
image-$(CONFIG_PPC_PMAC) += zImage.pmac
image-$(CONFIG_PPC_HOLLY) += dtbImage.holly
image-$(CONFIG_PPC_PRPMC2800) += dtbImage.prpmc2800
image-$(CONFIG_PPC_ISERIES) += zImage.iseries
image-$(CONFIG_DEFAULT_UIMAGE) += uImage
#
# Targets which embed a device tree blob
#
# Theses are default targets to build images which embed device tree blobs.
# They are only required on boards which do not have FDT support in firmware.
# Boards with newish u-boot firmare can use the uImage target above
#
# Board ports in arch/powerpc/platform/40x/Kconfig
image-$(CONFIG_EP405) += dtbImage.ep405
image-$(CONFIG_WALNUT) += treeImage.walnut
image-$(CONFIG_ACADIA) += cuImage.acadia
# Board ports in arch/powerpc/platform/44x/Kconfig
image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
image-$(CONFIG_SAM440EP) += cuImage.sam440ep
image-$(CONFIG_SEQUOIA) += cuImage.sequoia
image-$(CONFIG_RAINIER) += cuImage.rainier
image-$(CONFIG_TAISHAN) += cuImage.taishan
image-$(CONFIG_KATMAI) += cuImage.katmai
image-$(CONFIG_WARP) += cuImage.warp
image-$(CONFIG_YOSEMITE) += cuImage.yosemite
# Board ports in arch/powerpc/platform/8xx/Kconfig
image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads
image-$(CONFIG_MPC885ADS) += cuImage.mpc885ads
image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc
image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \
dtbImage.adder875-redboot
# Board ports in arch/powerpc/platform/52xx/Kconfig
image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b
# Board ports in arch/powerpc/platform/82xx/Kconfig
image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads
image-$(CONFIG_PQ2FADS) += cuImage.pq2fads
image-$(CONFIG_EP8248E) += dtbImage.ep8248e
# Board ports in arch/powerpc/platform/83xx/Kconfig
image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds
image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb
image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \
cuImage.mpc8349emitxgp
image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds
image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds
image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot
# Board ports in arch/powerpc/platform/85xx/Kconfig
image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads
image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \
cuImage.mpc8548cds \
cuImage.mpc8555cds
image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds
image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \
cuImage.mpc8572ds
image-$(CONFIG_TQM8540) += cuImage.tqm8540
image-$(CONFIG_TQM8541) += cuImage.tqm8541
image-$(CONFIG_TQM8548) += cuImage.tqm8548
image-$(CONFIG_TQM8555) += cuImage.tqm8555
image-$(CONFIG_TQM8560) += cuImage.tqm8560
image-$(CONFIG_SBC8548) += cuImage.sbc8548
image-$(CONFIG_SBC8560) += cuImage.sbc8560
image-$(CONFIG_KSI8560) += cuImage.ksi8560
# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
image-$(CONFIG_STORCENTER) += cuImage.storcenter
image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
image-$(CONFIG_PPC_C2K) += cuImage.c2k
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
ifeq ($(CONFIG_PPC32),y)
image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
endif
# Allow extra targets to be added to the defconfig
image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS))
initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
initrd-y := $(patsubst zImage%, zImage.initrd%, \
$(patsubst dtbImage%, dtbImage.initrd%, \
$(patsubst simpleImage%, simpleImage.initrd%, \
$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
initrd-y := $(filter-out $(image-y), $(initrd-y))
targets += $(image-y) $(initrd-y)
$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
# Don't put the ramdisk on the pattern rule; when its missing make will try
# the pattern rule with less dependencies that also matches (even with the
# hard dependency listed).
$(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
$(obj)/zImage.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,$*)
# dtbImage% - a dtbImage is a zImage with an embedded device tree blob
$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb
$(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb
$(call if_changed,wrap,$*,,$(obj)/$*.dtb)
# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
# prefix
$(obj)/vmlinux.strip: vmlinux
$(STRIP) -s -R .comment $< -o $@
# The iseries hypervisor won't take an ET_DYN executable, so this
# changes the type (byte 17) in the file to ET_EXEC (2).
$(obj)/zImage.iseries: vmlinux
$(STRIP) -s -R .comment $< -o $@
printf "\x02" | dd of=$@ conv=notrunc bs=1 seek=17
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
$(obj)/cuImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb)
$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb)
$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)
# Rule to build device tree blobs
$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc
$(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts
# If there isn't a platform selected then just strip the vmlinux.
ifeq (,$(image-y))
image-y := vmlinux.strip
endif
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
@rm -f $@; ln $< $@
$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
@rm -f $@; ln $< $@
install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
# anything not in $(targets)
clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
zImage.iseries zImage.miboot zImage.pmac zImage.pseries \
otheros.bld *.dtb
# clean up files cached by wrapper
clean-kernel := vmlinux.strip vmlinux.bin
clean-kernel += $(addsuffix .gz,$(clean-kernel))
# If not absolute clean-files are relative to $(obj).
clean-files += $(addprefix $(objtree)/, $(clean-kernel))
WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
WRAPPER_BINDIR := /usr/sbin
INSTALL := install
extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))
all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)
quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_mkdir = mkdir -p $@
quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@
quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@
quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
-e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \
$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
$(call cmd,mkdir)
$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
$(call cmd,install)
$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_exe)
$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
$(call cmd,install_dts)
$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
$(call cmd,install_wrapper)
$(obj)/bootwrapper_install: $(all-installed)
