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  24 # only generated files that appear to be out of date in the local tree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 ######## Anything below shouldn't be changed by regular users.
  47
  48 # Arrange for the value of $0 to be available for functions
  49 self=$0
  50
  51 # This function prints its arguments to standard output unless
  52 # "silent" is set.
  53 unset silent
  54 chat () {
  55     if [ -z "$silent" ]; then
  56         echo "$@"
  57     fi
  58 }
  59
  60 # This function prints a list of all generated files, along with their
  61 # dependencies.  Note that only one target is supported per line: the
  62 # colon is stripped from the output.
  63 files_and_dependencies () {
  64     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  65 # fixincludes
  66 fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
  67 fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
  68 # intl library
  69 intl/plural.c: intl/plural.y
  70 intl/configure: intl/configure.ac intl/aclocal.m4
  71 intl/config.h.in: intl/configure.ac intl/aclocal.m4
  72 # Now, proceed to gcc automatically generated files
  73 gcc/configure: gcc/configure.ac
  74 gcc/cstamp-h.in: gcc/configure.ac
  75 gcc/config.in: gcc/cstamp-h.in
  76 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  77 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
  78 # And then, language-specific files
  79 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  80 gcc/java/keyword.h: gcc/java/keyword.gperf
  81 # testsuite
  82 # Without this, _Pragma3.c can have a false negative.
  83 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  84 # Similarly, without this, you will see:
  85 # direct2s.c:35: warning: current file is older than direct2.c
  86 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
  87 # lto-plugin
  88 lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
  89 lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
  90 # And libraries, at last
  91 libbanshee/configure: libbanshee/configure.ac
  92 libmudflap/configure: libmudflap/configure.ac
  93 libobjc/configure: libobjc/configure.ac
  94 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
  95 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
  96 zlib/configure: zlib/configure.ac zlib/aclocal.m4
  97 fastjar/aclocal.m4: fastjar/configure.ac
  98 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
  99 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
 100 boehm-gc/aclocal.m4: boehm-gc/configure.ac
 101 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
 102 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
 103 libada/configure: libada/configure.ac
 104 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
 105 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
 106 libffi/configure: libffi/configure.ac libffi/aclocal.m4
 107 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
 108 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
 109 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
 110 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
 111 libjava/aclocal.m4: libjava/configure.ac
 112 libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
 113 libjava/configure: libjava/configure.ac libjava/aclocal.m4
 114 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 115 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 116 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 117 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 118 libcpp/aclocal.m4: libcpp/configure.ac
 119 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 120 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
 121 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
 122 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 123 libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 124 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
 125 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 126 # Top level
 127 Makefile.in: Makefile.tpl Makefile.def
 128 configure: configure.ac config/acx.m4
 129 EOF
 130 }
 131
 132
 133 # This function touches generated files such that the ``end'' user does
 134 # not have to rebuild them.
 135 touch_files () {
 136     rm -f Makefile.$$
 137     echo 'all: \' > Makefile.$$
 138     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 139     echo '; @true' >> Makefile.$$
 140     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 141     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 142     echo ':' >> Makefile.$$
 143     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 144     echo '      echo Touching $@...; \' >> Makefile.$$
 145     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 146     echo '      touch $@' >> Makefile.$$
 147     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 148
 149     # We would have to explicitly shut off the "Entering... Leaving..."
 150     # messages through "--no-print-directory" to handle the case when
 151     # we were called from a recursive invocation (i.e. "$(MAKE)" in a
 152     # Makefile, not just make).  Passing only "-s" doesn't help then,
 153     # because make has helpfully added "-w" to MAKEFLAGS automatically.
 154     # Unfortunately we do not require GNU make other than for building
 155     # and testing, so let's just grep known text explicitly echoed by
 156     # the rule.
 157     while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
 158       sleep 1
 159     done 2>&1
 160     rm -f Makefile.$$
 161 }
 162
 163
 164 # Whenever we update the tree or install a patch, we may be modifying
 165 # this script.  By re-execing it, we ensure that the appropriate
 166 # dependencies and rules will be used.
 167 touch_files_reexec () {
 168     chat "Adjusting file timestamps"
 169     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 170 }
 171
 172 # This functions applies a patch to an existing tree.
 173 apply_patch () {
 174     if [ -f "$1" ]; then
 175         echo "Applying patch file $1"
 176         case $1 in
 177         *gz)
 178             gzip -d -c "$1" | patch -p1 ;;
 179         *bz2)
 180             bzip2 -d -c "$1" | patch -p1 ;;
 181         *)
 182             patch -p1 < "$1";;
 183         esac
 184     fi
 185     touch_files_reexec
 186 }
 187
 188 # Check whether this indeed looks like a local tree.
 189 if [ ! -f gcc/version.c ]; then
 190     echo "This does not seem to be a GCC tree!"
 191     exit
 192 fi
 193
 194 case "$1" in
 195 --silent)
 196     silent=t
 197     shift
 198     ;;
 199 esac
 200
 201 case "$1" in
 202 # First of all, check whether we are going to process a patch.
 203 --patch)
 204     if test "$#" != 2; then
 205         echo "$1" expects only one argument >&2
 206         exit 1
 207     fi
 208     apply_patch "${2}"
 209     exit $?
 210     ;;
 211
 212 --touch)
 213     if test "$#" != 1; then
 214         echo "$1" does not expect any argument >&2
 215         exit 1
 216     fi
 217     touch_files
 218     exit $?
 219     ;;
 220
 221 --list)
 222     if test "$#" != 1; then
 223         echo "$1" does not expect any argument >&2
 224         exit 1
 225     fi
 226     files_and_dependencies | sed 's/ /: /'
 227     exit $?
 228     ;;
 229
 230 --help)
 231     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 232 \
 233
 234 p
 235 }' \
 236         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 237     exit $?
 238     ;;
 239
 240 esac
 241
 242 # Check whether this indeed looks like a local SVN tree.
 243 if [ ! -d .svn ]; then
 244     echo "This does not seem to be a GCC SVN tree!"
 245     exit
 246 fi
 247
 248 # Check command-line options
 249 if [ x"${1}"x = x"--nostdflags"x ]; then
 250     shift
 251 else
 252     set -- $UPDATE_OPTIONS ${1+"$@"}
 253 fi
 254
 255 chat "Updating SVN tree"
 256
 257 $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 258 if [ $? -ne 0 ]; then
 259     (touch_files_reexec)
 260     echo "SVN update of full tree failed." >&2
 261     exit 1
 262 fi
 263
 264 rm -f LAST_UPDATED gcc/REVISION
 265
 266 revision=`svn info | awk '/Revision:/ { print $2 }'`
 267 branch=`svn info | sed -ne "/URL:/ {
 268 s,.*/trunk,trunk,
 269 s,.*/branches/,,
 270 s,.*/tags/,,
 271 p
 272 }"`
 273 {
 274   date
 275   echo "`TZ=UTC date` (revision $revision)"
 276 } > LAST_UPDATED
 277
 278 echo "[$branch revision $revision]" > gcc/REVISION
 279
 280 touch_files_reexec