| # 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. These are normally HOSTCC, |
| # but may be a third compiler if, for example, you are cross |
| # compiling from an intel box. Once the 64bit ppc gcc is |
| # stable it will probably simply be a compiler switch to |
| # compile for 32bit mode. |
| # 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 |
| |
| HOSTCC := gcc |
| BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \ |
| $(shell $(CROSS32CC) -print-file-name=include) -fPIC |
| 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) |
| |
| 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) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \ |
| $(addprefix $(obj)/,$(zlibheader)) |
| |
| src-wlib := string.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \ |
| ns16550.c serial.c simple_alloc.c div64.S util.S $(zlib) |
| src-plat := of.c |
| src-boot := crt0.S $(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)/%: $(srctree)/$(src)/%.S |
| @cp $< $@ |
| |
| clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ |
| empty.c zImage zImage.coff.lds zImage.lds zImage.sandpoint |
| |
| 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 $@.$$$$ $^; mv $@.$$$$ $@ |
| |
| $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c |
| $(call if_changed_dep,bootcc) |
| $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S |
| $(call if_changed_dep,bootas) |
| |
| $(obj)/wrapper.a: $(obj-wlib) |
| $(call cmd,bootar) |
| |
| hostprogs-y := addnote addRamDisk hack-coff mktree |
| |
| extra-y := $(obj)/crt0.o $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ |
| $(obj)/zImage.lds $(obj)/zImage.coff.lds |
| |
| wrapper :=$(srctree)/$(src)/wrapper |
| wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) |
| |
| ############# |
| # Bits for building various flavours of zImage |
| |
| ifneq ($(CROSS32_COMPILE),) |
| CROSSWRAP := -C "$(CROSS32_COMPILE)" |
| else |
| ifneq ($(CROSS_COMPILE),) |
| CROSSWRAP := -C "$(CROSS_COMPILE)" |
| endif |
| endif |
| |
| quiet_cmd_wrap = WRAP $@ |
| cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) vmlinux |
| quiet_cmd_wrap_initrd = WRAP $@ |
| cmd_wrap_initrd =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ |
| -i $(obj)/ramdisk.image.gz vmlinux |
| |
| $(obj)/zImage.chrp: vmlinux $(wrapperbits) |
| $(call cmd,wrap,chrp) |
| |
| $(obj)/zImage.initrd.chrp: vmlinux $(wrapperbits) |
| $(call cmd,wrap_initrd,chrp) |
| |
| $(obj)/zImage.pseries: vmlinux $(wrapperbits) |
| $(call cmd,wrap,pseries) |
| |
| $(obj)/zImage.initrd.pseries: vmlinux $(wrapperbits) |
| $(call cmd,wrap_initrd,pseries) |
| |
| $(obj)/zImage.pmac: vmlinux $(wrapperbits) |
| $(call cmd,wrap,pmac) |
| |
| $(obj)/zImage.initrd.pmac: vmlinux $(wrapperbits) |
| $(call cmd,wrap_initrd,pmac) |
| |
| $(obj)/zImage.coff: vmlinux $(wrapperbits) |
| $(call cmd,wrap,pmaccoff) |
| |
| $(obj)/zImage.initrd.coff: vmlinux $(wrapperbits) |
| $(call cmd,wrap_initrd,pmaccoff) |
| |
| $(obj)/zImage.miboot: vmlinux $(wrapperbits) |
| $(call cmd,wrap,miboot) |
| |
| $(obj)/zImage.initrd.miboot: vmlinux $(wrapperbits) |
| $(call cmd,wrap_initrd,miboot) |
| |
| $(obj)/zImage.ps3: vmlinux |
| $(STRIP) -s -R .comment $< -o $@ |
| |
| $(obj)/zImage.initrd.ps3: vmlinux |
| @echo " WARNING zImage.initrd.ps3 not supported (yet)" |
| |
| $(obj)/uImage: vmlinux $(wrapperbits) |
| $(call cmd,wrap,uboot) |
| |
| image-$(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_DEFAULT_UIMAGE) += uImage |
| |
| # 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-y := $(patsubst zImage%, zImage.initrd%, $(image-y)) |
| |
| $(obj)/zImage: $(addprefix $(obj)/, $(image-y)) |
| @rm -f $@; ln $< $@ |
| $(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) |
| @rm -f $@; ln $< $@ |
| |
| install: $(CONFIGURE) $(image-y) |
| sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $< |
| |
| clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip.gz) |
| clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.bin.gz) |
| clean-files += $(image-) |
