linux-yocto/arch/powerpc/boot/Makefile

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)/cuboot-acadia.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_CELL_QPACE) += 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)