| # 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__ $(BOOTCFLAGS) -traditional -nostdinc |
| |
| ifeq ($(call cc-option-yn, -fstack-protector),y) |
| BOOTCFLAGS += -fno-stack-protector |
| endif |
| |
| BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) |
| |
| $(obj)/4xx.o: BOOTCFLAGS += -mcpu=440 |
| $(obj)/ebony.o: BOOTCFLAGS += -mcpu=440 |
| |
| 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) gunzip_util.o main.o): \ |
| $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) |
| |
| src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.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 |
| src-plat := of.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 |
| 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@__attribute_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 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 |
| $(call if_changed_dep,bootcc) |
| $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE |
| $(call if_changed_dep,bootas) |
| |
| $(obj)/wrapper.a: $(obj-wlib) FORCE |
| $(call if_changed,bootar) |
| |
| hostprogs-y := addnote addRamDisk hack-coff mktree |
| |
| targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a) |
| extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ |
| $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds |
| |
| wrapper :=$(srctree)/$(src)/wrapper |
| wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \ |
| $(wrapper) FORCE |
| |
| ############# |
| # Bits for building various flavours of zImage |
| |
| ifneq ($(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-$(CONFIG_PPC_PS3) += zImage.ps3 |
| image-$(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) += zImage.holly |
| image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800 |
| image-$(CONFIG_PPC_ISERIES) += zImage.iseries |
| image-$(CONFIG_DEFAULT_UIMAGE) += uImage |
| |
| ifneq ($(CONFIG_DEVICE_TREE),"") |
| image-$(CONFIG_PPC_8xx) += cuImage.8xx |
| image-$(CONFIG_PPC_83xx) += cuImage.83xx |
| image-$(CONFIG_PPC_85xx) += cuImage.85xx |
| image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony |
| image-$(CONFIG_BAMBOO) += treeImage.bamboo |
| endif |
| |
| # For 32-bit powermacs, build the COFF and miboot images |
| # as well as the ELF images. |
| ifeq ($(CONFIG_PPC32),y) |
| image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot |
| endif |
| |
| initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-)) |
| initrd-y := $(patsubst zImage%, zImage.initrd%, \ |
| $(patsubst treeImage%, treeImage.initrd%, $(image-y))) |
| initrd-y := $(filter-out $(image-y), $(initrd-y)) |
| targets += $(image-y) $(initrd-y) |
| |
| $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz |
| |
| # If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an |
| # empty string, define 'dts' to be path to the dts |
| # CONFIG_DEVICE_TREE will have "" around it, make sure to strip them |
| ifeq ($(CONFIG_WANT_DEVICE_TREE),y) |
| ifneq ($(CONFIG_DEVICE_TREE),"") |
| dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\ |
| ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%) |
| endif |
| endif |
| |
| # 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) $(dts) |
| $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz) |
| |
| $(obj)/zImage.%: vmlinux $(wrapperbits) $(dts) |
| $(call if_changed,wrap,$*,$(dts)) |
| |
| # 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 $@ |
| |
| $(obj)/zImage.iseries: vmlinux |
| $(STRIP) -s -R .comment $< -o $@ |
| |
| $(obj)/zImage.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts |
| $(STRIP) -s -R .comment $< -o vmlinux.strip |
| $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,) |
| |
| $(obj)/zImage.initrd.ps3: vmlinux $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz |
| $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz) |
| |
| $(obj)/uImage: vmlinux $(wrapperbits) |
| $(call if_changed,wrap,uboot) |
| |
| $(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits) |
| $(call if_changed,wrap,cuboot-$*,$(dts)) |
| |
| $(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits) |
| $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz) |
| |
| $(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits) |
| $(call if_changed,wrap,treeboot-$*,$(dts)) |
| |
| # If there isn't a platform selected then just strip the vmlinux. |
| ifeq (,$(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-) zImage zImage.initrd cuImage.* treeImage.* \ |
| otheros.bld |
| |
| # 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)) |
