5b9b5572c8
If you lose the x bit (eg: by using patch(1)), powerpc won't build. Be defensive about it... Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
179 lines
5.6 KiB
Makefile
179 lines
5.6 KiB
Makefile
# 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 div64.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) \
|
|
$(obj)/empty.c
|
|
|
|
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
|
|
|
|
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 $(obj)/,addnote hack-coff)
|
|
|
|
#############
|
|
# Bits for building various flavours of zImage
|
|
|
|
ifneq ($(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 $@
|
|
cmd_wrap_initrd =$(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)/uImage: vmlinux $(wrapperbits)
|
|
$(call cmd,wrap,uboot)
|
|
|
|
image-$(CONFIG_PPC_PSERIES) += zImage.pseries
|
|
image-$(CONFIG_PPC_MAPLE) += zImage.pseries
|
|
image-$(CONFIG_PPC_CELL) += zImage.pseries
|
|
image-$(CONFIG_PPC_CHRP) += zImage.chrp
|
|
image-$(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)
|