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[POWERPC] Small cleanups to the cuboot bootwrapper code 

This patch makes a few small cleanups to the cuboot code.
	- It removes the double layered selection of images, via
cuboot-plat-y, instead having the cuboot platforms directly select a
suitable image-y (this changes the name of the final cuboot image from
plain cuImage to cuImage.<platform>).
	- Factors out some code in the wrapper that's potentially
useful to platforms other than uboot.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
David Gibson 2007-05-01 10:20:20 +10:00 committed by Paul Mackerras
parent 0cd74f398a
commit a6afacb6b8
3 changed files with 20 additions and 25 deletions
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2
arch/powerpc/Makefile
View File

@ -148,7 +148,7 @@ all: $(KBUILD_IMAGE)
CPPFLAGS_vmlinux.lds := -Upowerpc
BOOT_TARGETS = zImage zImage.initrd uImage cuImage
BOOT_TARGETS = zImage zImage.initrd uImage
PHONY += $(BOOT_TARGETS)

15
arch/powerpc/boot/Makefile
View File

@ -129,7 +129,9 @@ 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-$(CONFIG_DEFAULT_UIMAGE) += uImage cuImage
image-$(CONFIG_PPC_83xx) += cuImage.83xx
image-$(CONFIG_PPC_85xx) += cuImage.85xx
image-$(CONFIG_DEFAULT_UIMAGE) += uImage
# For 32-bit powermacs, build the COFF and miboot images
# as well as the ELF images.
@ -162,15 +164,11 @@ $(obj)/zImage.initrd.ps3: vmlinux
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
cuboot-plat-$(CONFIG_83xx) += 83xx
cuboot-plat-$(CONFIG_85xx) += 85xx
cuboot-plat-y += unknown-platform
dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE)
$(obj)/cuImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,cuboot-$(word 1,$(cuboot-plat-y)),$(dts))
$(obj)/cuImage.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,$(dts))
$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
@rm -f $@; ln $< $@
@ -181,8 +179,7 @@ install: $(CONFIGURE) $(addprefix $(obj)/, $(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-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.*
# clean up files cached by wrapper
clean-kernel := vmlinux.strip vmlinux.bin

28
arch/powerpc/boot/wrapper
View File

@ -163,20 +163,19 @@ fi
vmz="$vmz$gzip"
case "$platform" in
uboot|cuboot*)
version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
cut -d' ' -f3`
if [ -n "$version" ]; then
version="-n Linux-$version"
fi
esac
# Extract kernel version information, some platforms want to include
# it in the image header
version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
cut -d' ' -f3`
if [ -n "$version" ]; then
uboot_version="-n Linux-$version"
fi
case "$platform" in
uboot)
rm -f "$ofile"
mkimage -A ppc -O linux -T kernel -C gzip -a 00000000 -e 00000000 \
$version -d "$vmz" "$ofile"
$uboot_version -d "$vmz" "$ofile"
if [ -z "$cacheit" ]; then
rm -f "$vmz"
fi
@ -212,25 +211,24 @@ if [ "$platform" != "miboot" ]; then
rm $tmp
fi
# Some platforms need the zImage's entry point and base address
base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
# post-processing needed for some platforms
case "$platform" in
pseries|chrp)
$object/addnote "$ofile"
;;
pmaccoff)
entry=`objdump -f "$ofile" | grep '^start address ' | \
cut -d' ' -f3`
${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
$object/hack-coff "$ofile"
;;
cuboot*)
base=`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | \
cut -d' ' -f3`
mv "$ofile" "$ofile".elf
${CROSS}objcopy -O binary "$ofile".elf "$ofile".bin
gzip -f -9 "$ofile".bin
mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
$version -d "$ofile".bin.gz "$ofile"
$uboot_version -d "$ofile".bin.gz "$ofile"
;;
esac