debian/scripts/dkms-build

   1 #!/bin/bash
   2 set -e
   3
   4 dkms_dir="$1"
   5 abi_flavour="$2"
   6 sign="$3"
   7 pkgname="$4"
   8 pkgdir="$5"
   9 dbgpkgdir="$6"
  10 package="$7"
  11 shift 7
  12
  13 here=$(dirname "$(readlink -f "${0}")")
  14
  15 srcdir=$(pwd)
  16 cd "$dkms_dir" || exit 1
  17
  18 built_using_record()
  19 {
  20         local subst="$1"
  21         local built_using="$2"
  22         if [ ! -f "$subst" ]; then
  23                 touch "$subst"
  24         fi
  25         if ! grep -q -s "^linux:BuiltUsing=" "$subst"; then
  26                 echo "linux:BuiltUsing=" >>"$subst"
  27         fi
  28         sed -i -e "s/^\(linux:BuiltUsing=.*\)/\1$built_using, /" "$subst"
  29 }
  30
  31 # ABI: returns present in $? and located path in lpackage_path when found.
  32 package_present()
  33 {
  34         for lpackage_path in "$1"_*.deb
  35         do
  36                 break
  37         done
  38         [ -f "$lpackage_path" ]
  39 }
  40
  41 # Download and extract the DKMS package -- note there may be more
  42 # than one package to install.
  43 for package_path in "$@"
  44 do
  45         package_file=$(basename "$package_path")
  46         echo "II: dkms-build downloading $package ($package_file)"
  47         rpackage=$( echo "$package_path" | sed -e 's@.*/@@' -e 's@_.*@@' )
  48         lpackage=$( echo "$rpackage" | sed -e 's@=.*@@' )
  49
  50         while true
  51         do
  52                 if package_present "$lpackage"; then
  53                         break
  54                 fi
  55                 case "$package_path" in
  56                 pool/*)
  57                         # Attempt download from the launchpad librarian first.
  58                         "$here/file-downloader" "https://launchpad.net/ubuntu/+archive/primary/+files/$package_file" || true
  59                         if package_present "$lpackage"; then
  60                                 break
  61                         fi
  62
  63                         # Download from the available pools.
  64                         for pool in $( apt-cache policy | grep '^ [^ ]' | sort -r -n -k 1,1 -s | \
  65                             awk '
  66                                 ($2 ~ /^http/) {
  67                                     if (!($2 in E)) {
  68                                         E[$2]=1;
  69                                         print $2;
  70                                     }
  71                                 }
  72                             ')
  73                         do
  74                                 if package_present "$lpackage"; then
  75                                         break
  76                                 fi
  77                                 url="$pool/$package_path"
  78                                 "$here/file-downloader" "$url" && break || true
  79                                 # No components in PPAs.
  80                                 url=$(echo "$url" | sed -e 's@/pool/[^/]*/@/pool/main/@')
  81                                 "$here/file-downloader" "$url" && break || true
  82                         done
  83                         ;;
  84                 http*:*)
  85                         "$here/file-downloader" "$package_path"
  86                         ;;
  87                 */*)
  88                         cp -p "$package_path" .
  89                         ;;
  90                 *)
  91                         apt-get download "$rpackage"
  92                         ;;
  93                 esac
  94                 break
  95         done
  96         if ! package_present "$lpackage"; then
  97                 echo "EE: $lpackage not found"
  98                 exit 1
  99         fi
 100
 101         dpkg -x "$lpackage"_*.deb "$package"
 102
 103         lversion=$( echo "$lpackage_path" | sed -e 's@.*/@@' -e 's@_[^_]*$@@' -e 's@.*_@@')
 104         #built_using_record "$srcdir/debian/$pkgname.substvars" "$built_using$lpackage (= $lversion)"
 105 done
 106
 107 # Pick out the package/version from the dkms.conf.
 108 for dkms_conf in "$package/usr/src"/*/"dkms.conf"
 109 do
 110         break
 111 done
 112
 113 # It seems some packages have a # in the name which works fine if the
 114 # package is installed directly, but not so much if we build it out
 115 # of the normal location.
 116 sed -i -e '/^PACKAGE_NAME=/ s/#//g' "$dkms_conf"
 117
 118 # Run any dkms-package specfic configuration steps
 119 dkms_config_specific="$srcdir/$0-configure--$package"
 120 dkms_config_generic=$(echo "$dkms_config_specific" | sed -e 's/-[0-9][0-9]*$/-N/')
 121 for dkms_config in "$dkms_config_specific" "$dkms_config_generic"
 122 do
 123         if [ -z "$dkms_config" -o ! -e "$dkms_config" ]; then
 124                 continue
 125         fi
 126         echo "II: dkms-build-configure $(basename "$dkms_config") found, executing"
 127         $SHELL "$dkms_config" \
 128                 "$srcdir" \
 129                 "$dkms_conf" \
 130                 "$dkms_dir" \
 131                 "$abi_flavour" \
 132                 "$sign" \
 133                 "$pkgname" \
 134                 "$pkgdir" \
 135                 "$dbgpkgdir" \
 136                 "$package" \
 137                 "$@" || exit 1
 138         break
 139 done
 140
 141 cat - <<'EOF' >>"$dkms_conf"
 142 POST_BUILD="ubuntu-save-objects ${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build ${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/objects $POST_BUILD"
 143 EOF
 144 ubuntu_script="$(dirname "$dkms_conf")/ubuntu-save-objects"
 145 cat - <<'EOF' >"$ubuntu_script"
 146 #!/bin/sh
 147 from="$1"
 148 to="$2"
 149 script="$3"
 150 shift 2
 151
 152 # Copy the objects.
 153 echo "II: copying objects to '$to'"
 154 mkdir -p "$to"
 155 (cd "$from" && find -name \*.o -o -name \*.o.ur-\* | cpio -Lpd "$to")
 156
 157 # Call the original post_install script if there is one.
 158 [ "$script" = '' ] && exit 0
 159
 160 shift
 161 exec "$(dirname "$0")/$script" "$@"
 162 EOF
 163 chmod +x "$ubuntu_script"
 164 dkms_package=$( sed -ne 's/PACKAGE_NAME="\(.*\)"/\1/p' "$dkms_conf" )
 165 dkms_version=$( sed -ne 's/PACKAGE_VERSION="\(.*\)"/\1/p' "$dkms_conf" )
 166
 167 # Build the DKMS binaries.
 168 echo "II: dkms-build building $package"
 169 rc=0
 170 /usr/sbin/dkms build --no-prepare-kernel --no-clean-kernel \
 171         -k "$abi_flavour" \
 172         --sourcetree "$dkms_dir/source" \
 173         --dkmstree "$dkms_dir/build" \
 174         --kernelsourcedir "$dkms_dir/headers/linux-headers-$abi_flavour" \
 175         "$dkms_conf" || rc=1
 176
 177 # Find the log and add it to our own.
 178 for log in "$dkms_dir/build/$dkms_package/$dkms_version/$abi_flavour"/*/"log/make.log" "$dkms_dir/build/$dkms_package/$dkms_version/build/make.log"
 179 do
 180         [ -f "$log" ] && break
 181 done
 182 sed -e "s@$dkms_dir@<<DKMSDIR>>@g" <"$log"
 183
 184 # If this build failed then exit here.
 185 [ "$rc" != 0 ] && exit "$rc"
 186
 187 # Install the modules with debug symbols we possibly built,
 188 # and strip the original modules for the next install step.
 189 if [ -n "$dbgpkgdir" ]; then
 190         dbgpkgdir="$dbgpkgdir/$package"
 191         echo "II: dkms-build installing $package into $dbgpkgdir (debug symbols)"
 192         install -d "$dbgpkgdir"
 193         find "$dkms_dir/build/$dkms_package/$dkms_version/$abi_version" -name \*.ko |
 194         while read module; do
 195                 vmodule=$( basename "$module" )
 196
 197                 # Check for '.debug_info' section in order to copy module.
 198                 # Useful if debug symbols are requested but not built for
 199                 # any reason (including not yet supported by DKMS package).
 200                 # Strip module just in case even if section isn't present.
 201                 if ${CROSS_COMPILE}objdump -h -j '.debug_info' "$module" >/dev/null 2>&1
 202                 then
 203                         echo "copying $vmodule"
 204                         cp "$module" "$dbgpkgdir"
 205                 else
 206                         echo "ignoring $vmodule (missing debug symbols)"
 207                 fi
 208
 209                 # Just 'strip -g' as '/usr/sbin/dkms' does.
 210                 echo "stripping $vmodule"
 211                 strip -g "$module"
 212         done
 213 fi
 214
 215 # Install and optionally sign the modules we have built.
 216 pkgdir="$pkgdir/$package"
 217 echo "II: dkms-build installing $package into $pkgdir"
 218 install -d "$pkgdir"
 219 find "$dkms_dir/build/$dkms_package/$dkms_version/$abi_version" -name \*.ko |
 220 while read module; do
 221         vmodule=$( basename "$module" )
 222         case "$sign" in
 223         --*)
 224                 echo "copying $vmodule"
 225                 cp "$module" "$pkgdir"
 226                 ;;
 227         *)
 228                 echo "signing $vmodule"
 229                 $sign "$module" "$pkgdir/$vmodule"
 230                 ;;
 231         esac
 232 done
 233
 234 find "$dkms_dir/build/$dkms_package/$dkms_version/objects" -name \*.o -print | \
 235 while read object
 236 do
 237         "$srcdir/debian/scripts/fix-filenames" "$object" "$dkms_dir"
 238 done
 239
 240 # Finally see if there is a dkms-package specific post processor present.  Hand
 241 # it the original source directory, destination package directory, the objects
 242 # as squirreled away, and the log in case it is useful.  Finally pass a formed
 243 # signing command line in case we need to do that.
 244 dkms_build_specific="$srcdir/$0--$package"
 245 dkms_build_generic=$(echo "$dkms_build_specific" | sed -n -e 's/-[0-9][0-9]*[a-z]*$/-N/p')
 246 for dkms_build in "$dkms_build_specific" "$dkms_build_generic"
 247 do
 248         if [ -z "$dkms_build" -o ! -e "$dkms_build" ]; then
 249                 continue
 250         fi
 251         echo "II: dkms-build override $(basename "$dkms_build") found, executing"
 252         $SHELL "$dkms_build" \
 253                 "$srcdir" \
 254                 "$dkms_dir/build/$dkms_package/$dkms_version/objects" \
 255                 "$log" \
 256                 "$dkms_dir" \
 257                 "$abi_flavour" \
 258                 "$sign" \
 259                 "$pkgname" \
 260                 "$pkgdir" \
 261                 "$dbgpkgdir" \
 262                 "$package" \
 263                 "$@" || exit 1
 264         break
 265 done
 266
 267 echo "II: dkms-build build $package complete"