contrib/gcc_update

   1 #! /bin/sh
   2 #
   3 # Update a local Subversion tree from the GCC repository, with an emphasis
   4 # on treating generated files correctly, so that autoconf, gperf et
   5 # al are not required for the ``end'' user.
   6 #
   7 # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
   8 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
   9 #
  10 # This script is Free Software, and it can be copied, distributed and
  11 # modified as defined in the GNU General Public License.  A copy of
  12 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
  13 #
  14 #
  15 # By default all command-line options are passed to `svn update` in
  16 # addition to $UPDATE_OPTIONS (defined below). If the first parameter
  17 # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
  18 # are omitted.
  19 #
  20 # If the first parameter reads --patch, the second parameter is considered
  21 # a patch file.
  22 #
  23 # If the first parameter is --touch, no svn operation will be performed,
  24 # only generated files that appear to be out of date in the local tree
  25 # will be touched.
  26 #
  27 # If the first parameter is --list, a list of the generated files and
  28 # their dependencies will be printed; --help prints this message.
  29 #
  30 # If the first parameter is --silent, this script prints nothing other
  31 # than error messages; the second parameter is then interpreted as above.
  32 #
  33 # Examples:
  34 #
  35 # contrib/gcc_update -r 8712
  36 # contrib/gcc_update --patch some-patch
  37 # contrib/gcc_update --touch
  38 # contrib/gcc_update --list
  39
  40
  41 # SVN command
  42 GCC_SVN=${GCC_SVN-${SVN-svn}}
  43 # Default options used when updating via SVN (none).
  44 UPDATE_OPTIONS=""
  45
  46 # Set the locale to C to make this script work for users with foreign
  47 # locale like e.g. French UTF-8.
  48 LANG=C
  49 LC_ALL=C
  50 export LANG LC_ALL
  51
  52 ######## Anything below shouldn't be changed by regular users.
  53
  54 # Arrange for the value of $0 to be available for functions
  55 self=$0
  56
  57 # This function prints its arguments to standard output unless
  58 # "silent" is set.
  59 unset silent
  60 chat () {
  61     if [ -z "$silent" ]; then
  62         echo "$@"
  63     fi
  64 }
  65
  66 # This function prints a list of all generated files, along with their
  67 # dependencies.  Note that only one target is supported per line: the
  68 # colon is stripped from the output.
  69 files_and_dependencies () {
  70     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  71 # fixincludes
  72 fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
  73 fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
  74 # intl library
  75 intl/plural.c: intl/plural.y
  76 intl/configure: intl/configure.ac intl/aclocal.m4
  77 intl/config.h.in: intl/configure.ac intl/aclocal.m4
  78 # Now, proceed to gcc automatically generated files
  79 gcc/configure: gcc/configure.ac
  80 gcc/cstamp-h.in: gcc/configure.ac
  81 gcc/config.in: gcc/cstamp-h.in
  82 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  83 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
  84 # And then, language-specific files
  85 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  86 gcc/java/keyword.h: gcc/java/keyword.gperf
  87 # testsuite
  88 # Without this, _Pragma3.c can have a false negative.
  89 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  90 # Similarly, without this, you will see:
  91 # direct2s.c:35: warning: current file is older than direct2.c
  92 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
  93 # lto-plugin
  94 lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
  95 lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
  96 # And libraries, at last
  97 libbanshee/configure: libbanshee/configure.ac
  98 libmudflap/configure: libmudflap/configure.ac
  99 libobjc/configure: libobjc/configure.ac
 100 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
 101 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
 102 zlib/configure: zlib/configure.ac zlib/aclocal.m4
 103 fastjar/aclocal.m4: fastjar/configure.ac
 104 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
 105 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
 106 boehm-gc/aclocal.m4: boehm-gc/configure.ac
 107 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
 108 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
 109 libada/configure: libada/configure.ac
 110 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
 111 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
 112 libffi/configure: libffi/configure.ac libffi/aclocal.m4
 113 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
 114 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
 115 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
 116 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
 117 libjava/aclocal.m4: libjava/configure.ac
 118 libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
 119 libjava/configure: libjava/configure.ac libjava/aclocal.m4
 120 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 121 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 122 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 123 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 124 libcpp/aclocal.m4: libcpp/configure.ac
 125 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 126 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
 127 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
 128 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 129 libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 130 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
 131 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 132 # Top level
 133 Makefile.in: Makefile.tpl Makefile.def
 134 configure: configure.ac config/acx.m4
 135 EOF
 136 }
 137
 138
 139 # This function touches generated files such that the ``end'' user does
 140 # not have to rebuild them.
 141 touch_files () {
 142     rm -f Makefile.$$
 143     echo 'all: \' > Makefile.$$
 144     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 145     echo '; @true' >> Makefile.$$
 146     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 147     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 148     echo ':' >> Makefile.$$
 149     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 150     echo '      echo Touching $@...; \' >> Makefile.$$
 151     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 152     echo '      touch $@' >> Makefile.$$
 153     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 154
 155     # We would have to explicitly shut off the "Entering... Leaving..."
 156     # messages through "--no-print-directory" to handle the case when
 157     # we were called from a recursive invocation (i.e. "$(MAKE)" in a
 158     # Makefile, not just make).  Passing only "-s" doesn't help then,
 159     # because make has helpfully added "-w" to MAKEFLAGS automatically.
 160     # Unfortunately we do not require GNU make other than for building
 161     # and testing, so let's just grep known text explicitly echoed by
 162     # the rule.
 163     while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
 164       sleep 1
 165     done 2>&1
 166     rm -f Makefile.$$
 167 }
 168
 169
 170 # Whenever we update the tree or install a patch, we may be modifying
 171 # this script.  By re-execing it, we ensure that the appropriate
 172 # dependencies and rules will be used.
 173 touch_files_reexec () {
 174     chat "Adjusting file timestamps"
 175     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 176 }
 177
 178 # This functions applies a patch to an existing tree.
 179 apply_patch () {
 180     if [ -f "$1" ]; then
 181         echo "Applying patch file $1"
 182         case $1 in
 183         *gz)
 184             gzip -d -c "$1" | patch -p1 ;;
 185         *bz2)
 186             bzip2 -d -c "$1" | patch -p1 ;;
 187         *)
 188             patch -p1 < "$1";;
 189         esac
 190     fi
 191     touch_files_reexec
 192 }
 193
 194 # Check whether this indeed looks like a local tree.
 195 if [ ! -f gcc/version.c ]; then
 196     echo "This does not seem to be a GCC tree!"
 197     exit
 198 fi
 199
 200 case "$1" in
 201 --silent)
 202     silent=t
 203     shift
 204     ;;
 205 esac
 206
 207 case "$1" in
 208 # First of all, check whether we are going to process a patch.
 209 --patch)
 210     if test "$#" != 2; then
 211         echo "$1" expects only one argument >&2
 212         exit 1
 213     fi
 214     apply_patch "${2}"
 215     exit $?
 216     ;;
 217
 218 --touch)
 219     if test "$#" != 1; then
 220         echo "$1" does not expect any argument >&2
 221         exit 1
 222     fi
 223     touch_files
 224     exit $?
 225     ;;
 226
 227 --list)
 228     if test "$#" != 1; then
 229         echo "$1" does not expect any argument >&2
 230         exit 1
 231     fi
 232     files_and_dependencies | sed 's/ /: /'
 233     exit $?
 234     ;;
 235
 236 --help)
 237     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 238 \
 239
 240 p
 241 }' \
 242         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 243     exit $?
 244     ;;
 245
 246 esac
 247
 248 # Check whether this indeed looks like a local SVN tree.
 249 if [ ! -d .svn ]; then
 250     echo "This does not seem to be a GCC SVN tree!"
 251     exit
 252 fi
 253
 254 # Check command-line options
 255 if [ x"${1}"x = x"--nostdflags"x ]; then
 256     shift
 257 else
 258     set -- $UPDATE_OPTIONS ${1+"$@"}
 259 fi
 260
 261 chat "Updating SVN tree"
 262
 263 $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 264 if [ $? -ne 0 ]; then
 265     (touch_files_reexec)
 266     echo "SVN update of full tree failed." >&2
 267     exit 1
 268 fi
 269
 270 rm -f LAST_UPDATED gcc/REVISION
 271
 272 revision=`svn info | awk '/Revision:/ { print $2 }'`
 273 branch=`svn info | sed -ne "/URL:/ {
 274 s,.*/trunk,trunk,
 275 s,.*/branches/,,
 276 s,.*/tags/,,
 277 p
 278 }"`
 279 {
 280   date
 281   echo "`TZ=UTC date` (revision $revision)"
 282 } > LAST_UPDATED
 283
 284 echo "[$branch revision $revision]" > gcc/REVISION
 285
 286 touch_files_reexec