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parisc: make "make install" not depend on vmlinux

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Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

http://lkml.org/lkml/2013/7/10/600

So on parisc and maybe other archs we need the same as for x86:

1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This parisc patch was inspired by:

19514fc6 arm, kbuild: make "make install" not depend on vmlinux

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2013-10-18 21:18:46 +02:00
parent 527973c840
commit b0756b5ade
2 changed files with 51 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
arch/parisc/Makefile
View file

@ -94,7 +94,7 @@ PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
else echo $(obj)/palo.conf; \
fi)
palo: vmlinuz
palo lifimage: vmlinuz
@if test ! -x "$(PALO)"; then \
echo 'ERROR: Please install palo first (apt-get install palo)';\
echo 'or build it from source and install it somewhere in your $$PATH';\
@ -109,16 +109,23 @@ palo: vmlinuz
fi
$(PALO) -f $(PALOCONF)
# Shorthands for known targets not supported by parisc, use vmlinux/vmlinuz as default
BOOT_TARGETS = zImage Image palo lifimage
INSTALL_TARGETS = zinstall install
PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
bzImage zImage: vmlinuz
Image: vmlinux
zImage bzImage: vmlinuz
vmlinuz: vmlinux
@gzip -cf -9 $< > $@
install: vmlinuz
sh $(src)/arch/parisc/install.sh \
$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
install:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
zinstall:
$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
CLEAN_FILES += lifimage
MRPROPER_FILES += palo.conf
@ -127,10 +134,11 @@ define archhelp
@echo '* vmlinux - Uncompressed kernel image (./vmlinux)'
@echo ' vmlinuz - Compressed kernel image (./vmlinuz)'
@echo ' palo - Bootable image (./lifimage)'
@echo ' install - Install kernel using'
@echo ' install - Install uncompressed vmlinux kernel using'
@echo ' (your) ~/bin/$(INSTALLKERNEL) or'
@echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
@echo ' copy to $$(INSTALL_PATH)'
@echo ' zinstall - Install compressed vmlinuz kernel'
endef
# we require gcc 3.3 or above to compile the kernel

44
arch/parisc/install.sh
View file

@ -19,20 +19,48 @@
# $4 - default install path (blank if root directory)
#
verify () {
if [ ! -f "$1" ]; then
echo "" 1>&2
echo " *** Missing file: $1" 1>&2
echo ' *** You need to run "make" before "make install".' 1>&2
echo "" 1>&2
exit 1
fi
}
# Make sure the files actually exist
verify "$2"
verify "$3"
# User may have a custom install script
if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
if [ -n "${INSTALLKERNEL}" ]; then
if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
fi
# Default install
if [ -f $4/vmlinuz ]; then
mv $4/vmlinuz $4/vmlinuz.old
if [ "$(basename $2)" = "zImage" ]; then
# Compressed install
echo "Installing compressed kernel"
base=vmlinuz
else
# Normal install
echo "Installing normal kernel"
base=vmlinux
fi
if [ -f $4/System.map ]; then
mv $4/System.map $4/System.old
if [ -f $4/$base-$1 ]; then
mv $4/$base-$1 $4/$base-$1.old
fi
cat $2 > $4/$base-$1
# Install system map file
if [ -f $4/System.map-$1 ]; then
mv $4/System.map-$1 $4/System.map-$1.old
fi
cp $3 $4/System.map-$1
cat $2 > $4/vmlinuz
cp $3 $4/System.map