[POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot
This puts the knowledge of how to create various sorts of zImage wrappers into a script called "wrapper" that could be used outside of the kernel tree. This changes arch/powerpc/boot so it first builds the files that the wrapper script needs, then runs it to create whatever flavours of zImage are required. This version does uImages as well. The zImage names are changed slightly; zImage.pseries is the one with the PT_NOTE program header entry added, and zImage.pmac is the one without. If the zImage.pseries gets made, it will also get hardlinked to zImage; otherwise, if zImage.pmac is made, it gets hardlinked to zImage. Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras
parent
4e6d816e51
commit
2bf118197c
5 changed files with 297 additions and 133 deletions
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@ -20,6 +20,7 @@ CROSS32_COMPILE ?=
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CROSS32CC := $(CROSS32_COMPILE)gcc
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CROSS32AS := $(CROSS32_COMPILE)as
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CROSS32LD := $(CROSS32_COMPILE)ld
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CROSS32AR := $(CROSS32_COMPILE)ar
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CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy
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ifeq ($(HAS_BIARCH),y)
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@ -28,10 +29,11 @@ CROSS32CC := $(CC) -m32
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CROSS32AS := $(AS) -a32
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CROSS32LD := $(LD) -m elf32ppc
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CROSS32OBJCOPY := $(OBJCOPY)
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CROSS32AR := $(AR)
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endif
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endif
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export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
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export CROSS32CC CROSS32AS CROSS32LD CROSS32AR CROSS32OBJCOPY
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KBUILD_DEFCONFIG := $(shell uname -m)_defconfig
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@ -146,7 +148,7 @@ all: $(KBUILD_IMAGE)
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CPPFLAGS_vmlinux.lds := -Upowerpc
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BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm uImage vmlinux.bin
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BOOT_TARGETS = zImage zImage.initrd uImage
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PHONY += $(BOOT_TARGETS)
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@ -20,27 +20,12 @@
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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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HOSTCC := gcc
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BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
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$(shell $(CROSS32CC) -print-file-name=include) -fPIC
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BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
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OBJCOPYFLAGS := contents,alloc,load,readonly,data
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OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000
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OBJCOPY_MIB_ARGS := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
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zlib := inffast.c inflate.c inftrees.c
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zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
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zliblinuxheader := zlib.h zconf.h zutil.h
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$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
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#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)
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src-boot-$(CONFIG_PPC_MULTIPLATFORM) := of.c
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src-boot := crt0.S string.S stdio.c main.c div64.S $(src-boot-y)
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src-boot += $(zlib)
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src-boot := $(addprefix $(obj)/, $(src-boot))
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obj-boot := $(addsuffix .o, $(basename $(src-boot)))
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ifeq ($(call cc-option-yn, -fstack-protector),y)
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BOOTCFLAGS += -fno-stack-protector
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@ -48,6 +33,22 @@ endif
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BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
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zlib := inffast.c inflate.c inftrees.c
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zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
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zliblinuxheader := zlib.h zconf.h zutil.h
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$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \
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$(addprefix $(obj)/,$(zlibheader))
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src-wlib := string.S stdio.c main.c div64.S $(zlib)
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src-plat := of.c
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src-boot := crt0.S $(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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@ -66,8 +67,14 @@ $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
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$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
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$(call cmd,copy_zliblinuxheader)
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clean-files := $(zlib) $(zlibheader) $(zliblinuxheader)
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$(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) $(zliblinuxheader) \
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$(obj)/empty.c
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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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@ -75,146 +82,97 @@ quiet_cmd_bootcc = BOOTCC $@
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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_bootld = BOOTLD $@
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cmd_bootld = $(CROSS32LD) -T $(srctree)/$(src)/$(3) -o $@ $(2)
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quiet_cmd_bootar = BOOTAR $@
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cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $^; mv $@.$$$$ $@
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$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c
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$(call if_changed_dep,bootcc)
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$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S
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$(call if_changed_dep,bootas)
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#-----------------------------------------------------------
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# ELF sections within the zImage bootloader/wrapper
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#-----------------------------------------------------------
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required := vmlinux.strip
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initrd := initrd
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$(obj)/wrapper.a: $(obj-wlib)
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$(call cmd,bootar)
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obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))
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src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
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gz-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
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hostprogs-y := addnote addRamDisk hack-coff
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hostprogs-y := addnote addRamDisk hack-coff
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extra-y := $(obj)/crt0.o $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
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$(obj)/zImage.lds $(obj)/zImage.coff.lds
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targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
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zImage.coff zImage.initrd.coff miboot.image miboot.initrd.image \
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$(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
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$(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
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$(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
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vmlinux.initrd dummy.o
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extra-y := initrd.o
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wrapper :=$(srctree)/$(src)/wrapper
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wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff)
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quiet_cmd_ramdisk = RAMDISK $@
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cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@
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#############
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# Bits for building various flavours of zImage
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quiet_cmd_stripvm = STRIP $@
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cmd_stripvm = $(STRIP) -s -R .comment $< -o $@
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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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vmlinux.strip: vmlinux
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$(call if_changed,stripvm)
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$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz
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$(call if_changed,ramdisk)
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quiet_cmd_wrap = WRAP $@
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cmd_wrap =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) vmlinux
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quiet_cmd_wrap_initrd = WRAP $@
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cmd_wrap_initrd =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
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-i $(obj)/ramdisk.image.gz vmlinux
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quiet_cmd_addsection = ADDSEC $@
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cmd_addsection = $(CROSS32OBJCOPY) $@ \
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--add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \
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--set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)
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$(obj)/zImage.chrp: vmlinux $(wrapperbits)
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$(call cmd,wrap,chrp)
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quiet_cmd_addnote = ADDNOTE $@
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cmd_addnote = $(obj)/addnote $@
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$(obj)/zImage.initrd.chrp: vmlinux $(wrapperbits)
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$(call cmd,wrap_initrd,chrp)
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quiet_cmd_gen-miboot = GEN $@
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cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_MIB_ARGS) \
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--add-section=$1=$(word 2, $^) $< $@
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$(obj)/zImage.pseries: vmlinux $(wrapperbits)
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$(call cmd,wrap,pseries)
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quiet_cmd_gencoff = COFF $@
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cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \
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$(obj)/hack-coff $@
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$(obj)/zImage.initrd.pseries: vmlinux $(wrapperbits)
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$(call cmd,wrap_initrd,pseries)
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$(call gz-sec, $(required)): $(obj)/kernel-%.gz: %
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$(call if_changed,gzip)
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$(obj)/zImage.pmac: vmlinux $(wrapperbits)
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$(call cmd,wrap,pmac)
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$(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz
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cp -f $(obj)/ramdisk.image.gz $@
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$(obj)/zImage.initrd.pmac: vmlinux $(wrapperbits)
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$(call cmd,wrap_initrd,pmac)
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$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz
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@touch $@
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$(obj)/zImage.coff: vmlinux $(wrapperbits)
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$(call cmd,wrap,pmaccoff)
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$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c
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$(call if_changed_dep,bootcc)
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$(call cmd,addsection)
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$(obj)/zImage.initrd.coff: vmlinux $(wrapperbits)
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$(call cmd,wrap_initrd,pmaccoff)
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$(obj)/zImage.vmode $(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
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$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
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$(call cmd,bootld,$(obj-boot),zImage.lds)
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$(obj)/zImage.miboot: vmlinux $(wrapperbits)
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$(call cmd,wrap,miboot)
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$(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
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$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
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$(call cmd,bootld,$(obj-boot),zImage.lds)
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$(obj)/zImage.initrd.miboot: vmlinux $(wrapperbits)
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$(call cmd,wrap_initrd,miboot)
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$(obj)/uImage: vmlinux $(wrapperbits)
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$(call cmd,wrap,uboot)
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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_CELL) += zImage.pseries
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image-$(CONFIG_PPC_CHRP) += zImage.chrp
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image-$(CONFIG_PPC_PMAC) += zImage.pmac
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image-$(CONFIG_DEFAULT_UIMAGE) += uImage
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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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coffimage-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.coff
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coffrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.initrd.coff
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mibootimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.image
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mibrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.initrd.image
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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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$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote $(coffimage-y-y) \
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$(mibootimg-y-y)
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@cp -f $< $@
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$(call if_changed,addnote)
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initrd-y := $(patsubst zImage%, zImage.initrd%, $(image-y))
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$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote \
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$(coffrdimg-y-y) $(mibrdimg-y-y)
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@cp -f $< $@
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$(call if_changed,addnote)
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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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$(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) \
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$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
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$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
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$(call cmd,gencoff)
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install: $(CONFIGURE) $(image-y)
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sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<
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$(obj)/zImage.initrd.coff: $(call obj-sec, $(required) $(initrd)) $(obj-boot) \
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$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
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$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
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$(call cmd,gencoff)
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$(obj)/miboot.image: $(obj)/dummy.o $(obj)/vmlinux.gz
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$(call cmd,gen-miboot,image)
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$(obj)/miboot.initrd.image: $(obj)/miboot.image $(images)/ramdisk.image.gz
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$(call cmd,gen-miboot,initrd)
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#-----------------------------------------------------------
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# build u-boot images
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#-----------------------------------------------------------
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quiet_cmd_mygzip = GZIP $@
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cmd_mygzip = gzip -f -9 < $< > $@.$$$$ && mv $@.$$$$ $@
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quiet_cmd_objbin = OBJCOPY $@
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cmd_objbin = $(OBJCOPY) -O binary $< $@
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quiet_cmd_uimage = UIMAGE $@
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cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \
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-C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \
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-d $< $@
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MKIMAGE := $(srctree)/scripts/mkuboot.sh
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targets += uImage
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extra-y += vmlinux.bin vmlinux.gz
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objbin)
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$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,mygzip)
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$(obj)/uImage: $(obj)/vmlinux.gz
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$(Q)rm -f $@
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$(call cmd,uimage)
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@echo -n ' Image: $@ '
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@if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi
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install: $(CONFIGURE) $(BOOTIMAGE)
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sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
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clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)
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clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip.gz)
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clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.bin.gz)
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204
arch/powerpc/boot/wrapper
Executable file
204
arch/powerpc/boot/wrapper
Executable file
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@ -0,0 +1,204 @@
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#!/bin/sh
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# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org>
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# This program may be used under the terms of version 2 of the GNU
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# General Public License.
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# This script takes a kernel binary and optionally an initrd image
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# and/or a device-tree blob, and creates a bootable zImage for a
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# given platform.
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# Options:
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# -o zImage specify output file
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# -p platform specify platform (links in $platform.o)
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# -i initrd specify initrd file
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# -d devtree specify device-tree blob
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# -s tree.dts specify device-tree source file (needs dtc installed)
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# -c cache $kernel.strip.gz (use if present & newer, else make)
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# -C prefix specify command prefix for cross-building tools
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# (strip, objcopy, ld)
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# -D dir specify directory containing data files used by script
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# (default ./arch/powerpc/boot)
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# -W dir specify working directory for temporary files (default .)
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# defaults
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kernel=
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ofile=zImage
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platform=of
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initrd=
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dtb=
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dts=
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cacheit=
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# cross-compilation prefix
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CROSS=
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# directory for object and other files used by this script
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object=arch/powerpc/boot
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# directory for working files
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tmpdir=.
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usage() {
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echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
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echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2
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echo ' [-D datadir] [-W workingdir] [vmlinux]' >&2
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exit 1
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}
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while [ "$#" -gt 0 ]; do
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case "$1" in
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-o)
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shift
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[ "$#" -gt 0 ] || usage
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ofile="$1"
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;;
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-p)
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shift
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[ "$#" -gt 0 ] || usage
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platform="$1"
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;;
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-i)
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shift
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[ "$#" -gt 0 ] || usage
|
||||
initrd="$1"
|
||||
;;
|
||||
-d)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || usage
|
||||
dtb="$1"
|
||||
;;
|
||||
-s)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || usage
|
||||
dts="$1"
|
||||
;;
|
||||
-c)
|
||||
cacheit=y
|
||||
;;
|
||||
-C)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || usage
|
||||
CROSS="$1"
|
||||
;;
|
||||
-D)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || usage
|
||||
object="$1"
|
||||
;;
|
||||
-W)
|
||||
shift
|
||||
[ "$#" -gt 0 ] || usage
|
||||
tmpdir="$1"
|
||||
;;
|
||||
-?)
|
||||
usage
|
||||
;;
|
||||
*)
|
||||
[ -z "$kernel" ] || usage
|
||||
kernel="$1"
|
||||
;;
|
||||
esac
|
||||
shift
|
||||
done
|
||||
|
||||
if [ -n "$dts" ]; then
|
||||
if [ -z "$dtb" ]; then
|
||||
dtb="$platform.dtb"
|
||||
fi
|
||||
dtc -O dtb -o "$dtb" -b 0 -V 16 "$dts" || exit 1
|
||||
fi
|
||||
|
||||
if [ -z "$kernel" ]; then
|
||||
kernel=vmlinux
|
||||
fi
|
||||
|
||||
platformo=$object/"$platform".o
|
||||
lds=$object/zImage.lds
|
||||
ext=strip
|
||||
objflags=-S
|
||||
tmp=$tmpdir/zImage.$$.o
|
||||
ksection=.kernel:vmlinux.strip
|
||||
isection=.kernel:initrd
|
||||
|
||||
case "$platform" in
|
||||
pmac|pseries|chrp)
|
||||
platformo=$object/of.o
|
||||
;;
|
||||
pmaccoff)
|
||||
platformo=$object/of.o
|
||||
lds=$object/zImage.coff.lds
|
||||
;;
|
||||
miboot|uboot)
|
||||
# miboot and U-boot want just the bare bits, not an ELF binary
|
||||
ext=bin
|
||||
objflags="-O binary"
|
||||
tmp="$ofile"
|
||||
ksection=image
|
||||
isection=initrd
|
||||
;;
|
||||
esac
|
||||
|
||||
vmz="$tmpdir/`basename \"$kernel\"`.$ext"
|
||||
if [ -z "$cacheit" -o ! -f "$vmz.gz" -o "$vmz.gz" -ot "$kernel" ]; then
|
||||
${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
|
||||
gzip -f -9 "$vmz.$$"
|
||||
if [ -n "$cacheit" ]; then
|
||||
mv -f "$vmz.$$.gz" "$vmz.gz"
|
||||
else
|
||||
vmz="$vmz.$$"
|
||||
fi
|
||||
fi
|
||||
|
||||
case "$platform" in
|
||||
uboot)
|
||||
rm -f "$ofile"
|
||||
version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
|
||||
cut -d' ' -f3`
|
||||
if [ -n "$version" ]; then
|
||||
version="-n Linux-$version"
|
||||
fi
|
||||
mkimage -A ppc -O linux -T kernel -C gzip -a 00000000 -e 00000000 \
|
||||
$version -d "$vmz.gz" "$ofile"
|
||||
if [ -z "$cacheit" ]; then
|
||||
rm -f $vmz.gz
|
||||
fi
|
||||
exit 0
|
||||
;;
|
||||
esac
|
||||
|
||||
addsec() {
|
||||
${CROSS}objcopy $4 $1 \
|
||||
--add-section=$3="$2" \
|
||||
--set-section-flags=$3=contents,alloc,load,readonly,data
|
||||
}
|
||||
|
||||
addsec $tmp "$vmz.gz" $ksection $object/empty.o
|
||||
if [ -z "$cacheit" ]; then
|
||||
rm -f "$vmz.gz"
|
||||
fi
|
||||
|
||||
if [ -n "$initrd" ]; then
|
||||
addsec $tmp "$initrd" initrd
|
||||
fi
|
||||
|
||||
if [ -n "$dtb" ]; then
|
||||
addsec $tmp "$dtb" dtb
|
||||
fi
|
||||
|
||||
if [ "$platform" != "miboot" ]; then
|
||||
${CROSS}ld -m elf32ppc -T $lds -o "$ofile" \
|
||||
$object/crt0.o $platformo $tmp $object/wrapper.a
|
||||
rm $tmp
|
||||
fi
|
||||
|
||||
# post-processing needed for some platforms
|
||||
case "$platform" in
|
||||
pseries|chrp)
|
||||
$object/addnote "$ofile"
|
||||
;;
|
||||
pmaccoff)
|
||||
${CROSS}objcopy -O aixcoff-rs6000 --set-start 0x500000 "$ofile"
|
||||
$object/hack-coff "$ofile"
|
||||
;;
|
||||
esac
|
||||
Loading…
Reference in a new issue