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 create_package() {
  16         local pname="$1" pdir="$2"
  17
  18         cp debian/copyright "$pdir/usr/share/doc/$pname/"
  19         cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
  20         gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
  21         sh -c "cd '$pdir'; find . -type f ! -path './DEBIAN/*' -printf '%P\0' \
  22                 | xargs -r0 md5sum > DEBIAN/md5sums"
  23
  24         # Fix ownership and permissions
  25         chown -R root:root "$pdir"
  26         chmod -R go-w "$pdir"
  27
  28         # Attempt to find the correct Debian architecture
  29         local forcearch="" debarch=""
  30         case "$UTS_MACHINE" in
  31         i386|ia64|alpha)
  32                 debarch="$UTS_MACHINE" ;;
  33         x86_64)
  34                 debarch=amd64 ;;
  35         sparc*)
  36                 debarch=sparc ;;
  37         s390*)
  38                 debarch=s390 ;;
  39         ppc*)
  40                 debarch=powerpc ;;
  41         parisc*)
  42                 debarch=hppa ;;
  43         mips*)
  44                 debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el) ;;
  45         arm*)
  46                 debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el) ;;
  47         *)
  48                 echo "" >&2
  49                 echo "** ** **  WARNING  ** ** **" >&2
  50                 echo "" >&2
  51                 echo "Your architecture doesn't have it's equivalent" >&2
  52                 echo "Debian userspace architecture defined!" >&2
  53                 echo "Falling back to using your current userspace instead!" >&2
  54                 echo "Please add support for $UTS_MACHINE to ${0} ..." >&2
  55                 echo "" >&2
  56         esac
  57         if [ -n "$KBUILD_DEBARCH" ] ; then
  58                 debarch="$KBUILD_DEBARCH"
  59         fi
  60         if [ -n "$debarch" ] ; then
  61                 forcearch="-DArchitecture=$debarch"
  62         fi
  63
  64         # Create the package
  65         dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
  66         dpkg --build "$pdir" ..
  67 }
  68
  69 # Some variables and settings used throughout the script
  70 version=$KERNELRELEASE
  71 revision=$(cat .version)
  72 if [ -n "$KDEB_PKGVERSION" ]; then
  73         packageversion=$KDEB_PKGVERSION
  74 else
  75         packageversion=$version-$revision
  76 fi
  77 tmpdir="$objtree/debian/tmp"
  78 fwdir="$objtree/debian/fwtmp"
  79 kernel_headers_dir="$objtree/debian/hdrtmp"
  80 libc_headers_dir="$objtree/debian/headertmp"
  81 dbg_dir="$objtree/debian/dbgtmp"
  82 packagename=linux-image-$version
  83 fwpackagename=linux-firmware-image-$version
  84 kernel_headers_packagename=linux-headers-$version
  85 libc_headers_packagename=linux-libc-dev
  86 dbg_packagename=$packagename-dbg
  87
  88 if [ "$ARCH" = "um" ] ; then
  89         packagename=user-mode-linux-$version
  90 fi
  91
  92 # Not all arches have the same installed path in debian
  93 # XXX: have each arch Makefile export a variable of the canonical image install
  94 # path instead
  95 case $ARCH in
  96 um)
  97         installed_image_path="usr/bin/linux-$version"
  98         ;;
  99 parisc|mips|powerpc)
 100         installed_image_path="boot/vmlinux-$version"
 101         ;;
 102 *)
 103         installed_image_path="boot/vmlinuz-$version"
 104 esac
 105
 106 BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
 107
 108 # Setup the directory structure
 109 rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
 110 mkdir -m 755 -p "$tmpdir/DEBIAN"
 111 mkdir -p  "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
 112 mkdir -m 755 -p "$fwdir/DEBIAN"
 113 mkdir -p "$fwdir/lib/firmware/$version/" "$fwdir/usr/share/doc/$fwpackagename"
 114 mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
 115 mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename"
 116 mkdir -m 755 -p "$kernel_headers_dir/DEBIAN"
 117 mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename"
 118 mkdir -p "$kernel_headers_dir/lib/modules/$version/"
 119 if [ "$ARCH" = "um" ] ; then
 120         mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
 121 fi
 122 if [ -n "$BUILD_DEBUG" ] ; then
 123         mkdir -p "$dbg_dir/usr/share/doc/$dbg_packagename"
 124         mkdir -m 755 -p "$dbg_dir/DEBIAN"
 125 fi
 126
 127 # Build and install the kernel
 128 if [ "$ARCH" = "um" ] ; then
 129         $MAKE linux
 130         cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
 131         cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
 132         gzip "$tmpdir/usr/share/doc/$packagename/config"
 133 else
 134         cp System.map "$tmpdir/boot/System.map-$version"
 135         cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version"
 136 fi
 137 # Not all arches include the boot path in KBUILD_IMAGE
 138 if [ -e $KBUILD_IMAGE ]; then
 139         cp $KBUILD_IMAGE "$tmpdir/$installed_image_path"
 140 else
 141         cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"
 142 fi
 143
 144 if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 145         INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
 146         rm -f "$tmpdir/lib/modules/$version/build"
 147         rm -f "$tmpdir/lib/modules/$version/source"
 148         if [ "$ARCH" = "um" ] ; then
 149                 mv "$tmpdir/lib/modules/$version"/* "$tmpdir/usr/lib/uml/modules/$version/"
 150                 rmdir "$tmpdir/lib/modules/$version"
 151         fi
 152         if [ -n "$BUILD_DEBUG" ] ; then
 153                 (
 154                         cd $tmpdir
 155                         for module in $(find lib/modules/ -name *.ko); do
 156                                 mkdir -p $(dirname $dbg_dir/usr/lib/debug/$module)
 157                                 # only keep debug symbols in the debug file
 158                                 objcopy --only-keep-debug $module $dbg_dir/usr/lib/debug/$module
 159                                 # strip original module from debug symbols
 160                                 objcopy --strip-debug $module
 161                                 # then add a link to those
 162                                 objcopy --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $module
 163                         done
 164                 )
 165         fi
 166 fi
 167
 168 if [ "$ARCH" != "um" ]; then
 169         $MAKE headers_check KBUILD_SRC=
 170         $MAKE headers_install KBUILD_SRC= INSTALL_HDR_PATH="$libc_headers_dir/usr"
 171 fi
 172
 173 # Install the maintainer scripts
 174 # Note: hook scripts under /etc/kernel are also executed by official Debian
 175 # kernel packages, as well as kernel packages built using make-kpkg
 176 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
 177 for script in postinst postrm preinst prerm ; do
 178         mkdir -p "$tmpdir$debhookdir/$script.d"
 179         cat <<EOF > "$tmpdir/DEBIAN/$script"
 180 #!/bin/sh
 181
 182 set -e
 183
 184 # Pass maintainer script parameters to hook scripts
 185 export DEB_MAINT_PARAMS="\$*"
 186
 187 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
 188 exit 0
 189 EOF
 190         chmod 755 "$tmpdir/DEBIAN/$script"
 191 done
 192
 193 # Try to determine maintainer and email values
 194 if [ -n "$DEBEMAIL" ]; then
 195        email=$DEBEMAIL
 196 elif [ -n "$EMAIL" ]; then
 197        email=$EMAIL
 198 else
 199        email=$(id -nu)@$(hostname -f)
 200 fi
 201 if [ -n "$DEBFULLNAME" ]; then
 202        name=$DEBFULLNAME
 203 elif [ -n "$NAME" ]; then
 204        name=$NAME
 205 else
 206        name="Anonymous"
 207 fi
 208 maintainer="$name <$email>"
 209
 210 # Generate a simple changelog template
 211 cat <<EOF > debian/changelog
 212 linux-upstream ($packageversion) unstable; urgency=low
 213
 214   * Custom built Linux kernel.
 215
 216  -- $maintainer  $(date -R)
 217 EOF
 218
 219 # Generate copyright file
 220 cat <<EOF > debian/copyright
 221 This is a packacked upstream version of the Linux kernel.
 222
 223 The sources may be found at most Linux ftp sites, including:
 224 ftp://ftp.kernel.org/pub/linux/kernel
 225
 226 Copyright: 1991 - 2009 Linus Torvalds and others.
 227
 228 The git repository for mainline kernel development is at:
 229 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
 230
 231     This program is free software; you can redistribute it and/or modify
 232     it under the terms of the GNU General Public License as published by
 233     the Free Software Foundation; version 2 dated June, 1991.
 234
 235 On Debian GNU/Linux systems, the complete text of the GNU General Public
 236 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 237 EOF
 238
 239 # Generate a control file
 240 cat <<EOF > debian/control
 241 Source: linux-upstream
 242 Section: kernel
 243 Priority: optional
 244 Maintainer: $maintainer
 245 Standards-Version: 3.8.4
 246 Homepage: http://www.kernel.org/
 247 EOF
 248
 249 if [ "$ARCH" = "um" ]; then
 250         cat <<EOF >> debian/control
 251
 252 Package: $packagename
 253 Provides: linux-image, linux-image-2.6, linux-modules-$version
 254 Architecture: any
 255 Description: User Mode Linux kernel, version $version
 256  User-mode Linux is a port of the Linux kernel to its own system call
 257  interface.  It provides a kind of virtual machine, which runs Linux
 258  as a user process under another Linux kernel.  This is useful for
 259  kernel development, sandboxes, jails, experimentation, and
 260  many other things.
 261  .
 262  This package contains the Linux kernel, modules and corresponding other
 263  files, version: $version.
 264 EOF
 265
 266 else
 267         cat <<EOF >> debian/control
 268
 269 Package: $packagename
 270 Provides: linux-image, linux-image-2.6, linux-modules-$version
 271 Suggests: $fwpackagename
 272 Architecture: any
 273 Description: Linux kernel, version $version
 274  This package contains the Linux kernel, modules and corresponding other
 275  files, version: $version.
 276 EOF
 277
 278 fi
 279
 280 # Build header package
 281 (cd $srctree; find . -name Makefile\* -o -name Kconfig\* -o -name \*.pl > "$objtree/debian/hdrsrcfiles")
 282 (cd $srctree; find arch/$SRCARCH/include include scripts -type f >> "$objtree/debian/hdrsrcfiles")
 283 (cd $objtree; find arch/$SRCARCH/include Module.symvers include scripts -type f >> "$objtree/debian/hdrobjfiles")
 284 destdir=$kernel_headers_dir/usr/src/linux-headers-$version
 285 mkdir -p "$destdir"
 286 (cd $srctree; tar -c -f - -T "$objtree/debian/hdrsrcfiles") | (cd $destdir; tar -xf -)
 287 (cd $objtree; tar -c -f - -T "$objtree/debian/hdrobjfiles") | (cd $destdir; tar -xf -)
 288 (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
 289 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
 290 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
 291 arch=$(dpkg --print-architecture)
 292
 293 cat <<EOF >> debian/control
 294
 295 Package: $kernel_headers_packagename
 296 Provides: linux-headers, linux-headers-2.6
 297 Architecture: $arch
 298 Description: Linux kernel headers for $KERNELRELEASE on $arch
 299  This package provides kernel header files for $KERNELRELEASE on $arch
 300  .
 301  This is useful for people who need to build external modules
 302 EOF
 303
 304 # Do we have firmware? Move it out of the way and build it into a package.
 305 if [ -e "$tmpdir/lib/firmware" ]; then
 306         mv "$tmpdir/lib/firmware"/* "$fwdir/lib/firmware/$version/"
 307         rmdir "$tmpdir/lib/firmware"
 308
 309         cat <<EOF >> debian/control
 310
 311 Package: $fwpackagename
 312 Architecture: all
 313 Description: Linux kernel firmware, version $version
 314  This package contains firmware from the Linux kernel, version $version.
 315 EOF
 316
 317         create_package "$fwpackagename" "$fwdir"
 318 fi
 319
 320 cat <<EOF >> debian/control
 321
 322 Package: $libc_headers_packagename
 323 Section: devel
 324 Provides: linux-kernel-headers
 325 Architecture: any
 326 Description: Linux support headers for userspace development
 327  This package provides userspaces headers from the Linux kernel.  These headers
 328  are used by the installed headers for GNU glibc and other system libraries.
 329 EOF
 330
 331 if [ "$ARCH" != "um" ]; then
 332         create_package "$kernel_headers_packagename" "$kernel_headers_dir"
 333         create_package "$libc_headers_packagename" "$libc_headers_dir"
 334 fi
 335
 336 create_package "$packagename" "$tmpdir"
 337
 338 if [ -n "$BUILD_DEBUG" ] ; then
 339         # Build debug package
 340         # Different tools want the image in different locations
 341         # perf
 342         mkdir -p $dbg_dir/usr/lib/debug/lib/modules/$version/
 343         cp vmlinux $dbg_dir/usr/lib/debug/lib/modules/$version/
 344         # systemtap
 345         mkdir -p $dbg_dir/usr/lib/debug/boot/
 346         ln -s ../lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/boot/vmlinux-$version
 347         # kdump-tools
 348         ln -s lib/modules/$version/vmlinux $dbg_dir/usr/lib/debug/vmlinux-$version
 349
 350         cat <<EOF >> debian/control
 351
 352 Package: $dbg_packagename
 353 Section: debug
 354 Provides: linux-debug, linux-debug-$version
 355 Architecture: any
 356 Description: Linux kernel debugging symbols for $version
 357  This package will come in handy if you need to debug the kernel. It provides
 358  all the necessary debug symbols for the kernel and its modules.
 359 EOF
 360
 361         create_package "$dbg_packagename" "$dbg_dir"
 362 fi
 363
 364 exit 0