linux-yocto/scripts/package/builddeb

#!/bin/sh

builddeb 1.3

Copyright 2003 Wichert Akkerman wichert@wiggy.net

Simple script to generate a deb package for a Linux kernel. All the

complexity of what to do with a kernel after it is installed or removed

is left to other scripts and packages: they can install scripts in the

/etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location

specified in KDEB_HOOKDIR) that will be called on package install and

removal.

set -e

create_package() { local pname="$1" pdir="$2"

mkdir -m 755 -p "$pdir/DEBIAN"
mkdir -p "$pdir/usr/share/doc/$pname"
cp debian/copyright "$pdir/usr/share/doc/$pname/"
cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
	| xargs -r0 md5sum > DEBIAN/md5sums"

# Fix ownership and permissions
chown -R root:root "$pdir"
chmod -R go-w "$pdir"
# in case we are in a restrictive umask environment like 0077
chmod -R a+rX "$pdir"

# Create the package
dpkg-gencontrol -p$pname -P"$pdir"
dpkg --build "$pdir" ..

}

version=$KERNELRELEASE tmpdir="$objtree/debian/tmp" kernel_headers_dir="$objtree/debian/hdrtmp" libc_headers_dir="$objtree/debian/headertmp" dbg_dir="$objtree/debian/dbgtmp" packagename=linux-image-$version kernel_headers_packagename=linux-headers-$version libc_headers_packagename=linux-libc-dev dbg_packagename=$packagename-dbg

if [ "$ARCH" = "um" ] ; then packagename=user-mode-linux-$version fi

Not all arches have the same installed path in debian

XXX: have each arch Makefile export a variable of the canonical image install

path instead

case $ARCH in um) installed_image_path="usr/bin/linux-$version" ;; parisc|mips|powerpc) installed_image_path="boot/vmlinux-$version" ;; *) installed_image_path="boot/vmlinuz-$version" esac

BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"

Setup the directory structure

rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files mkdir -m 755 -p "$tmpdir/DEBIAN" mkdir -p "$tmpdir/lib" "$tmpdir/boot" mkdir -p "$kernel_headers_dir/lib/modules/$version/"

Build and install the kernel

if [ "$ARCH" = "um" ] ; then mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename" $MAKE linux cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map" cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config" gzip "$tmpdir/usr/share/doc/$packagename/config" else cp System.map "$tmpdir/boot/System.map-$version" cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version" fi cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"

if grep -q "^CONFIG_OF_EARLY_FLATTREE=y" $KCONFIG_CONFIG ; then # Only some architectures with OF support have this target if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then $MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install fi fi

if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install rm -f "$tmpdir/lib/modules/$version/build" rm -f "$tmpdir/lib/modules/$version/source" if [ "$ARCH" = "um" ] ; then mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/" rmdir "$tmpdir/lib/modules/$version" fi if [ -n "$BUILD_DEBUG" ] ; then for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do module=lib/modules/$module mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module) # only keep debug symbols in the debug file $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module # strip original module from debug symbols $OBJCOPY --strip-debug $tmpdir/$module # then add a link to those $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module done

	# resign stripped modules
	MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"
	if [ -n "$MODULE_SIG_ALL" ]; then
		INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign
	fi
fi

fi

if [ "$ARCH" != "um" ]; then $MAKE headers_check KBUILD_SRC= $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr" fi

Install the maintainer scripts

Note: hook scripts under /etc/kernel are also executed by official Debian

kernel packages, as well as kernel packages built using make-kpkg.

make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and

so do we; recent versions of dracut and initramfs-tools will obey this.

debhookdir=${KDEB_HOOKDIR:-/etc/kernel} if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then want_initrd=Yes else want_initrd=No fi for script in postinst postrm preinst prerm ; do mkdir -p "$tmpdir$debhookdir/$script.d" cat < "$tmpdir/DEBIAN/$script" #!/bin/sh

set -e

Pass maintainer script parameters to hook scripts

export DEB_MAINT_PARAMS="$*"

Tell initramfs builder whether it's wanted

export INITRD=$want_initrd

test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d exit 0 EOF chmod 755 "$tmpdir/DEBIAN/$script" done

Build kernel header package

(cd $srctree; find . -name Makefile* -o -name Kconfig* -o -name *.pl) > "$objtree/debian/hdrsrcfiles" (cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles" (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles" (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles" if grep -q '^CONFIG_STACK_VALIDATION=y' $KCONFIG_CONFIG ; then (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles" fi (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles" if grep -q '^CONFIG_GCC_PLUGINS=y' $KCONFIG_CONFIG ; then (cd $objtree; find scripts/gcc-plugins -name *.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles" fi destdir=$kernel_headers_dir/usr/src/linux-headers-$version mkdir -p "$destdir" (cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -) (cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -) (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build" rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"

if [ "$ARCH" != "um" ]; then create_package "$kernel_headers_packagename" "$kernel_headers_dir" create_package "$libc_headers_packagename" "$libc_headers_dir" fi

create_package "$packagename" "$tmpdir"

if [ -n "$BUILD_DEBUG" ] ; then # Build debug package # Different tools want the image in different locations # perf mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/ cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/ # systemtap mkdir -p $dbg_dir/usr/lib/debug/boot/ ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version # kdump-tools ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version create_package "$dbg_packagename" "$dbg_dir" fi

exit 0