scripts/package/builddeb

   1 #!/bin/sh
   2 #
   3 # builddeb 1.3
   4 # Copyright 2003 Wichert Akkerman <wichert@wiggy.net>
   5 #
   6 # Simple script to generate a deb package for a Linux kernel. All the
   7 # complexity of what to do with a kernel after it is installed or removed
   8 # is left to other scripts and packages: they can install scripts in the
   9 # /etc/kernel/{pre,post}{inst,rm}.d/ directories (or an alternative location
  10 # specified in KDEB_HOOKDIR) that will be called on package install and
  11 # removal.
  12
  13 set -e
  14
  15 is_enabled() {
  16         grep -q "^$1=y" include/config/auto.conf
  17 }
  18
  19 if_enabled_echo() {
  20         if is_enabled "$1"; then
  21                 echo -n "$2"
  22         elif [ $# -ge 3 ]; then
  23                 echo -n "$3"
  24         fi
  25 }
  26
  27 create_package() {
  28         local pname="$1" pdir="$2"
  29
  30         mkdir -m 755 -p "$pdir/DEBIAN"
  31         mkdir -p "$pdir/usr/share/doc/$pname"
  32         cp debian/copyright "$pdir/usr/share/doc/$pname/"
  33         cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
  34         gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
  35         sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
  36                 | xargs -r0 md5sum > DEBIAN/md5sums"
  37
  38         # Fix ownership and permissions
  39         chown -R root:root "$pdir"
  40         chmod -R go-w "$pdir"
  41         # in case we are in a restrictive umask environment like 0077
  42         chmod -R a+rX "$pdir"
  43
  44         # Create the package
  45         dpkg-gencontrol -p$pname -P"$pdir"
  46         dpkg --build "$pdir" ..
  47 }
  48
  49 version=$KERNELRELEASE
  50 tmpdir="$objtree/debian/tmp"
  51 kernel_headers_dir="$objtree/debian/hdrtmp"
  52 libc_headers_dir="$objtree/debian/headertmp"
  53 dbg_dir="$objtree/debian/dbgtmp"
  54 packagename=linux-image-$version
  55 kernel_headers_packagename=linux-headers-$version
  56 libc_headers_packagename=linux-libc-dev
  57 dbg_packagename=$packagename-dbg
  58
  59 if [ "$ARCH" = "um" ] ; then
  60         packagename=user-mode-linux-$version
  61 fi
  62
  63 # Not all arches have the same installed path in debian
  64 # XXX: have each arch Makefile export a variable of the canonical image install
  65 # path instead
  66 case $ARCH in
  67 um)
  68         installed_image_path="usr/bin/linux-$version"
  69         ;;
  70 parisc|mips|powerpc)
  71         installed_image_path="boot/vmlinux-$version"
  72         ;;
  73 *)
  74         installed_image_path="boot/vmlinuz-$version"
  75 esac
  76
  77 BUILD_DEBUG=$(if_enabled_echo CONFIG_DEBUG_INFO Yes)
  78
  79 # Setup the directory structure
  80 rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
  81 mkdir -m 755 -p "$tmpdir/DEBIAN"
  82 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
  83 mkdir -p "$kernel_headers_dir/lib/modules/$version/"
  84
  85 # Build and install the kernel
  86 if [ "$ARCH" = "um" ] ; then
  87         mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
  88         $MAKE linux
  89         cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
  90         cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
  91         gzip "$tmpdir/usr/share/doc/$packagename/config"
  92 else
  93         cp System.map "$tmpdir/boot/System.map-$version"
  94         cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
  95 fi
  96 cp "$($MAKE -s -f $srctree/Makefile image_name)" "$tmpdir/$installed_image_path"
  97
  98 if is_enabled CONFIG_OF_EARLY_FLATTREE; then
  99         # Only some architectures with OF support have this target
 100         if [ -d "${srctree}/arch/$SRCARCH/boot/dts" ]; then
 101                 $MAKE -f $srctree/Makefile INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
 102         fi
 103 fi
 104
 105 if is_enabled CONFIG_MODULES; then
 106         INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_install
 107         rm -f "$tmpdir/lib/modules/$version/build"
 108         rm -f "$tmpdir/lib/modules/$version/source"
 109         if [ "$ARCH" = "um" ] ; then
 110                 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
 111                 rmdir "$tmpdir/lib/modules/$version"
 112         fi
 113         if [ -n "$BUILD_DEBUG" ] ; then
 114                 for module in $(find $tmpdir/lib/modules/ -name *.ko -printf '%P\n'); do
 115                         module=lib/modules/$module
 116                         mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
 117                         # only keep debug symbols in the debug file
 118                         $OBJCOPY --only-keep-debug $tmpdir/$module $dbg_dir/usr/lib/debug/$module
 119                         # strip original module from debug symbols
 120                         $OBJCOPY --strip-debug $tmpdir/$module
 121                         # then add a link to those
 122                         $OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
 123                 done
 124
 125                 # resign stripped modules
 126                 if is_enabled CONFIG_MODULE_SIG_ALL; then
 127                         INSTALL_MOD_PATH="$tmpdir" $MAKE -f $srctree/Makefile modules_sign
 128                 fi
 129         fi
 130 fi
 131
 132 if [ "$ARCH" != "um" ]; then
 133         $MAKE -f $srctree/Makefile headers
 134         $MAKE -f $srctree/Makefile headers_install INSTALL_HDR_PATH="$libc_headers_dir/usr"
 135         # move asm headers to /usr/include/<libc-machine>/asm to match the structure
 136         # used by Debian-based distros (to support multi-arch)
 137         host_arch=$(dpkg-architecture -a$(cat debian/arch) -qDEB_HOST_MULTIARCH)
 138         mkdir $libc_headers_dir/usr/include/$host_arch
 139         mv $libc_headers_dir/usr/include/asm $libc_headers_dir/usr/include/$host_arch/
 140 fi
 141
 142 # Install the maintainer scripts
 143 # Note: hook scripts under /etc/kernel are also executed by official Debian
 144 # kernel packages, as well as kernel packages built using make-kpkg.
 145 # make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
 146 # so do we; recent versions of dracut and initramfs-tools will obey this.
 147 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
 148 for script in postinst postrm preinst prerm ; do
 149         mkdir -p "$tmpdir$debhookdir/$script.d"
 150         cat <<EOF > "$tmpdir/DEBIAN/$script"
 151 #!/bin/sh
 152
 153 set -e
 154
 155 # Pass maintainer script parameters to hook scripts
 156 export DEB_MAINT_PARAMS="\$*"
 157
 158 # Tell initramfs builder whether it's wanted
 159 export INITRD=$(if_enabled_echo CONFIG_BLK_DEV_INITRD Yes No)
 160
 161 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
 162 exit 0
 163 EOF
 164         chmod 755 "$tmpdir/DEBIAN/$script"
 165 done
 166
 167 # Build kernel header package
 168 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl) > "$objtree/debian/hdrsrcfiles"
 169 (cd $srctree; find arch/*/include include scripts -type f -o -type l) >> "$objtree/debian/hdrsrcfiles"
 170 (cd $srctree; find arch/$SRCARCH -name module.lds -o -name Kbuild.platforms -o -name Platform) >> "$objtree/debian/hdrsrcfiles"
 171 (cd $srctree; find $(find arch/$SRCARCH -name include -o -name scripts -type d) -type f) >> "$objtree/debian/hdrsrcfiles"
 172 if is_enabled CONFIG_STACK_VALIDATION; then
 173         (cd $objtree; find tools/objtool -type f -executable) >> "$objtree/debian/hdrobjfiles"
 174 fi
 175 (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f) >> "$objtree/debian/hdrobjfiles"
 176 if is_enabled CONFIG_GCC_PLUGINS; then
 177         (cd $objtree; find scripts/gcc-plugins -name \*.so -o -name gcc-common.h) >> "$objtree/debian/hdrobjfiles"
 178 fi
 179 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
 180 mkdir -p "$destdir"
 181 (cd $srctree; tar -c -f - -T -) < "$objtree/debian/hdrsrcfiles" | (cd $destdir; tar -xf -)
 182 (cd $objtree; tar -c -f - -T -) < "$objtree/debian/hdrobjfiles" | (cd $destdir; tar -xf -)
 183 (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
 184 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
 185 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
 186
 187 if [ "$ARCH" != "um" ]; then
 188         create_package "$kernel_headers_packagename" "$kernel_headers_dir"
 189         create_package "$libc_headers_packagename" "$libc_headers_dir"
 190 fi
 191
 192 create_package "$packagename" "$tmpdir"
 193
 194 if [ -n "$BUILD_DEBUG" ] ; then
 195         # Build debug package
 196         # Different tools want the image in different locations
 197         # perf
 198         mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
 199         cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
 200         # systemtap
 201         mkdir -p $dbg_dir/usr/lib/debug/boot/
 202         ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
 203         # kdump-tools
 204         ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
 205         create_package "$dbg_packagename" "$dbg_dir"
 206 fi
 207
 208 exit 0