From b0756b5adefcb51eaa84810a0b7abd4df8c19eb9 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 18 Oct 2013 21:18:46 +0200 Subject: parisc: make "make install" not depend on vmlinux 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 --- arch/parisc/Makefile | 22 +++++++++++++++------- arch/parisc/install.sh | 44 ++++++++++++++++++++++++++++++++++++-------- 2 files changed, 51 insertions(+), 15 deletions(-) diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index e02f665f804a..7187664034c3 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -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 diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh index 4da682b466d0..6f68784fea25 100644 --- a/arch/parisc/install.sh +++ b/arch/parisc/install.sh @@ -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 $4/$base-$1 ]; then + mv $4/$base-$1 $4/$base-$1.old fi +cat $2 > $4/$base-$1 -if [ -f $4/System.map ]; then - mv $4/System.map $4/System.old +# 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 -- cgit v1.2.3