# 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
-BOOTLFLAGS := -T $(srctree)/$(src)/zImage.lds
-OBJCOPYFLAGS := contents,alloc,load,readonly,data
-zlib := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c
-zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h
+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))
-#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)
+$(addprefix $(obj)/,$(zlib) 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
+src-plat := of.c cuboot-83xx.c
+src-boot := $(src-wlib) $(src-plat) empty.c
-src-boot := string.S prom.c main.c div64.S crt0.S
-src-boot += $(zlib)
src-boot := $(addprefix $(obj)/, $(src-boot))
obj-boot := $(addsuffix .o, $(basename $(src-boot)))
-
-BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)
+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\"@" $< > $@
$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
$(call cmd,copy_zliblinuxheader)
-clean-files := $(zlib) $(zlibheader) $(zliblinuxheader)
+$(obj)/empty.c:
+ @touch $@
+
+$(obj)/zImage.lds $(obj)/zImage.coff.lds: $(obj)/%: $(srctree)/$(src)/%.S
+ @cp $< $@
+clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
+ empty.c zImage.coff.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_bootld = BOOTLD $@
- cmd_bootld = $(CROSS32LD) $(BOOTLFLAGS) -o $@ $(2)
+quiet_cmd_bootar = BOOTAR $@
+ cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@
-$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c
+$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
$(call if_changed_dep,bootcc)
-$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S
+$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
$(call if_changed_dep,bootas)
-#-----------------------------------------------------------
-# ELF sections within the zImage bootloader/wrapper
-#-----------------------------------------------------------
-required := vmlinux.strip
-initrd := initrd
-
-obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))
-src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
-gz-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
-
-hostprogs-y := addnote addRamDisk
-targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
- $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
- $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
- $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
- vmlinux.initrd
-extra-y := initrd.o
-
-quiet_cmd_ramdisk = RAMDISK $@
- cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@
-
-quiet_cmd_stripvm = STRIP $@
- cmd_stripvm = $(STRIP) -s -R .comment $< -o $@
-
-vmlinux.strip: vmlinux
- $(call if_changed,stripvm)
-$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz
- $(call if_changed,ramdisk)
-
-quiet_cmd_addsection = ADDSEC $@
- cmd_addsection = $(CROSS32OBJCOPY) $@ \
- --add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \
- --set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)
-
-quiet_cmd_addnote = ADDNOTE $@
- cmd_addnote = $(obj)/addnote $@
-
-$(call gz-sec, $(required)): $(obj)/kernel-%.gz: %
- $(call if_changed,gzip)
-
-$(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz
- cp -f $(obj)/ramdisk.image.gz $@
-
-$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz
- @touch $@
-
-$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c
- $(call if_changed_dep,bootcc)
- $(call cmd,addsection)
-
-$(obj)/zImage.vmode: obj-boot += $(call obj-sec, $(required))
-$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
- $(call cmd,bootld,$(obj-boot))
-
-$(obj)/zImage.initrd.vmode: obj-boot += $(call obj-sec, $(required) $(initrd))
-$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
- $(call cmd,bootld,$(obj-boot))
-
-$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote
- @cp -f $< $@
- $(call if_changed,addnote)
-
-$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote
- @cp -f $< $@
- $(call if_changed,addnote)
-
-#-----------------------------------------------------------
-# build u-boot images
-#-----------------------------------------------------------
-quiet_cmd_mygzip = GZIP $@
-cmd_mygzip = gzip -f -9 < $< > $@.$$$$ && mv $@.$$$$ $@
-
-quiet_cmd_objbin = OBJCOPY $@
- cmd_objbin = $(OBJCOPY) -O binary $< $@
-
-quiet_cmd_uimage = UIMAGE $@
- cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \
- -C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \
- -d $< $@
-
-MKIMAGE := $(srctree)/scripts/mkuboot.sh
-targets += uImage
-extra-y += vmlinux.bin vmlinux.gz
-
-$(obj)/vmlinux.bin: vmlinux FORCE
- $(call if_changed,objbin)
-
-$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
- $(call if_changed,mygzip)
-
-$(obj)/uImage: $(obj)/vmlinux.gz
- $(Q)rm -f $@
- $(call cmd,uimage)
- @echo -n ' Image: $@ '
- @if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi
-
-install: $(CONFIGURE) $(BOOTIMAGE)
- sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
-
-clean-files := $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)
+$(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 $(obj)/zImage.coff.lds
+
+wrapper :=$(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_DEFAULT_UIMAGE) += uImage cuImage
+
+# 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%, $(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)
+ $(call if_changed,wrap,$*)
+
+$(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)
+ $(call if_changed,wrap,uboot)
+
+cuboot-plat-$(CONFIG_83xx) += 83xx
+cuboot-plat-y += unknown-platform
+
+dts = $(if $(shell echo $(CONFIG_) | grep '^/'),\
+ ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE)
+
+$(obj)/cuImage: vmlinux $(wrapperbits)
+ $(call if_changed,wrap,cuboot-$(word 1,$(cuboot-plat-y)),$(dts))
+
+$(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)" $<
+
+# anything not in $(targets)
+clean-files += $(image-) $(initrd-) zImage zImage.initrd \
+ cuImage.elf cuImage.bin.gz
+
+# 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))
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