b0e80206cc
The holly support currently has separate rules to wrap its device tree with its zImage. This can now be done automatically without the extra rules so update holly support to use the automatic feature. Signed-off-by: Mark A. Greer <mgreer@mista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
216 lines
7.6 KiB
Makefile
216 lines
7.6 KiB
Makefile
# Makefile for making ELF bootable images for booting on CHRP
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# using Open Firmware.
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#
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# Geert Uytterhoeven September 1997
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#
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# Based on coffboot by Paul Mackerras
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# Simplified for ppc64 by Todd Inglett
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#
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# NOTE: this code is built for 32 bit in ELF32 format even though
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# it packages a 64 bit kernel. We do this to simplify the
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# bootloader and increase compatibility with OpenFirmware.
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#
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# To this end we need to define BOOTCC, etc, as the tools
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# needed to build the 32 bit image. That's normally the same
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# compiler for the rest of the kernel, with the -m32 flag added.
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# To make it easier to setup a cross compiler,
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# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
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# in the toplevel makefile.
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all: $(obj)/zImage
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BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
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-fno-strict-aliasing -Os -msoft-float -pipe \
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-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
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-isystem $(shell $(CROSS32CC) -print-file-name=include)
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BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
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ifeq ($(call cc-option-yn, -fstack-protector),y)
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BOOTCFLAGS += -fno-stack-protector
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endif
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BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
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$(obj)/44x.o: BOOTCFLAGS += -mcpu=440
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$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
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zlib := inffast.c inflate.c inftrees.c
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zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
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zliblinuxheader := zlib.h zconf.h zutil.h
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$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
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$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
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src-wlib := string.S crt0.S stdio.c main.c flatdevtree.c flatdevtree_misc.c \
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ns16550.c serial.c simple_alloc.c div64.S util.S \
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gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
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44x.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c
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src-plat := of.c cuboot-83xx.c cuboot-85xx.c holly.c \
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cuboot-ebony.c treeboot-ebony.c prpmc2800.c
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src-boot := $(src-wlib) $(src-plat) empty.c
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src-boot := $(addprefix $(obj)/, $(src-boot))
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obj-boot := $(addsuffix .o, $(basename $(src-boot)))
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obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
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obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))
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quiet_cmd_copy_zlib = COPY $@
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cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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quiet_cmd_copy_zlibheader = COPY $@
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cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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# stddef.h for NULL
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quiet_cmd_copy_zliblinuxheader = COPY $@
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cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
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$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
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$(call cmd,copy_zlib)
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$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
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$(call cmd,copy_zlibheader)
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$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
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$(call cmd,copy_zliblinuxheader)
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$(obj)/empty.c:
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@touch $@
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$(obj)/zImage.lds $(obj)/zImage.coff.lds: $(obj)/%: $(srctree)/$(src)/%.S
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@cp $< $@
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clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
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empty.c zImage.coff.lds zImage.lds
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quiet_cmd_bootcc = BOOTCC $@
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cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<
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quiet_cmd_bootas = BOOTAS $@
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cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<
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quiet_cmd_bootar = BOOTAR $@
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cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
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$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
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$(call if_changed_dep,bootcc)
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$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
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$(call if_changed_dep,bootas)
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$(obj)/wrapper.a: $(obj-wlib) FORCE
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$(call if_changed,bootar)
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hostprogs-y := addnote addRamDisk hack-coff mktree
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targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
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extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
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$(obj)/zImage.lds $(obj)/zImage.coff.lds
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wrapper :=$(srctree)/$(src)/wrapper
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wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree) \
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$(wrapper) FORCE
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#############
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# Bits for building various flavours of zImage
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ifneq ($(CROSS32_COMPILE),)
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CROSSWRAP := -C "$(CROSS32_COMPILE)"
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else
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ifneq ($(CROSS_COMPILE),)
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CROSSWRAP := -C "$(CROSS_COMPILE)"
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endif
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endif
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# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
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quiet_cmd_wrap = WRAP $@
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cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
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$(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux
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image-$(CONFIG_PPC_PSERIES) += zImage.pseries
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image-$(CONFIG_PPC_MAPLE) += zImage.pseries
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image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
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image-$(CONFIG_PPC_PS3) += zImage.ps3
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image-$(CONFIG_PPC_CELLEB) += zImage.pseries
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image-$(CONFIG_PPC_CHRP) += zImage.chrp
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image-$(CONFIG_PPC_EFIKA) += zImage.chrp
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image-$(CONFIG_PPC_PMAC) += zImage.pmac
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image-$(CONFIG_PPC_HOLLY) += zImage.holly
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image-$(CONFIG_PPC_PRPMC2800) += zImage.prpmc2800
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image-$(CONFIG_PPC_ISERIES) += zImage.iseries
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image-$(CONFIG_DEFAULT_UIMAGE) += uImage
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ifneq ($(CONFIG_DEVICE_TREE),"")
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image-$(CONFIG_PPC_83xx) += cuImage.83xx
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image-$(CONFIG_PPC_85xx) += cuImage.85xx
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image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
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endif
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# For 32-bit powermacs, build the COFF and miboot images
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# as well as the ELF images.
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ifeq ($(CONFIG_PPC32),y)
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image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
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endif
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initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
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initrd-y := $(patsubst zImage%, zImage.initrd%, \
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$(patsubst treeImage%, treeImage.initrd%, $(image-y)))
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initrd-y := $(filter-out $(image-y), $(initrd-y))
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targets += $(image-y) $(initrd-y)
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$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
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# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
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# empty string, define 'dts' to be path to the dts
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# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
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ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
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ifneq ($(CONFIG_DEVICE_TREE),"")
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dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
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,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
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endif
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endif
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# Don't put the ramdisk on the pattern rule; when its missing make will try
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# the pattern rule with less dependencies that also matches (even with the
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# hard dependency listed).
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$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
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$(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
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$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
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$(call if_changed,wrap,$*,$(dts))
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$(obj)/zImage.iseries: vmlinux
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$(STRIP) -s -R .comment $< -o $@
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$(obj)/zImage.ps3: vmlinux
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$(STRIP) -s -R .comment $< -o $@
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$(obj)/zImage.initrd.ps3: vmlinux
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@echo " WARNING zImage.initrd.ps3 not supported (yet)"
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$(obj)/uImage: vmlinux $(wrapperbits)
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$(call if_changed,wrap,uboot)
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$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
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$(call if_changed,wrap,cuboot-$*,$(dts))
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$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
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$(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
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$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
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$(call if_changed,wrap,treeboot-$*,$(dts))
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$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
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@rm -f $@; ln $< $@
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$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
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@rm -f $@; ln $< $@
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install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
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sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
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# anything not in $(targets)
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clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.*
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# clean up files cached by wrapper
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clean-kernel := vmlinux.strip vmlinux.bin
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clean-kernel += $(addsuffix .gz,$(clean-kernel))
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# If not absolute clean-files are relative to $(obj).
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clean-files += $(addprefix $(objtree)/, $(clean-kernel))
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