contrib/gcc_update

   1 #! /bin/sh
   2 #
   3 # Update a local Subversion, Git or Mercurial tree from the GCC
   4 # repository, with an emphasis on treating generated files correctly, so
   5 # that autoconf, gperf et al are not required for the ``end'' user.
   6 #
   7 # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
   8 # 2011 Free Software Foundation
   9 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
  10 #
  11 # This script is Free Software, and it can be copied, distributed and
  12 # modified as defined in the GNU General Public License.  A copy of
  13 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
  14 #
  15 #
  16 # By default all command-line options are passed to `svn update` or `hg/git
  17 # pull` in addition to $UPDATE_OPTIONS (defined below). If the first parameter
  18 # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
  19 # are omitted.
  20 #
  21 # If the first parameter reads --patch, the second parameter is considered
  22 # a patch file.
  23 #
  24 # If the first parameter is --touch, no svn operation will be performed,
  25 # only generated files that appear to be out of date in the local tree
  26 # will be touched.
  27 #
  28 # If the first parameter is --list, a list of the generated files and
  29 # their dependencies will be printed; --help prints this message.
  30 #
  31 # If the first parameter is --silent, this script prints nothing other
  32 # than error messages; the second parameter is then interpreted as above.
  33 #
  34 # Examples:
  35 #
  36 # contrib/gcc_update -r 8712
  37 # contrib/gcc_update --patch some-patch
  38 # contrib/gcc_update --touch
  39 # contrib/gcc_update --list
  40
  41
  42 # Default options used when updating (none).
  43 UPDATE_OPTIONS=""
  44
  45 # Set the locale to C to make this script work for users with foreign
  46 # locale like e.g. French UTF-8.
  47 LANG=C
  48 LC_ALL=C
  49 export LANG LC_ALL
  50
  51 ######## Anything below shouldn't be changed by regular users.
  52
  53 # Arrange for the value of $0 to be available for functions
  54 self=$0
  55
  56 # This function prints its arguments to standard output unless
  57 # "silent" is set.
  58 unset silent
  59 chat () {
  60     if [ -z "$silent" ]; then
  61         echo "$@"
  62     fi
  63 }
  64
  65 # This function prints a list of all generated files, along with their
  66 # dependencies.  Note that only one target is supported per line: the
  67 # colon is stripped from the output.
  68 files_and_dependencies () {
  69     sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
  70 # fixincludes
  71 fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
  72 fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
  73 # intl library
  74 intl/plural.c: intl/plural.y
  75 intl/configure: intl/configure.ac intl/aclocal.m4
  76 intl/config.h.in: intl/configure.ac intl/aclocal.m4
  77 # Now, proceed to gcc automatically generated files
  78 gcc/configure: gcc/configure.ac
  79 gcc/cstamp-h.in: gcc/configure.ac
  80 gcc/config.in: gcc/cstamp-h.in
  81 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
  82 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
  83 gcc/config/arm/arm-tables.opt: gcc/config/arm/arm-arches.def gcc/config/arm/arm-cores.def gcc/config/arm/arm-fpus.def gcc/config/arm/genopt.sh
  84 gcc/config/avr/avr-tables.opt: gcc/config/avr/avr-mcus.def gcc/config/avr/genopt.sh
  85 gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
  86 gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
  87 gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh
  88 gcc/config/m68k/m68k-tables.opt: gcc/config/m68k/m68k-devices.def gcc/config/m68k/m68k-isas.def gcc/config/m68k/m68k-microarchs.def gcc/config/m68k/genopt.sh
  89 gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh
  90 gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh
  91 # And then, language-specific files
  92 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  93 gcc/java/keyword.h: gcc/java/keyword.gperf
  94 # testsuite
  95 # Without this, _Pragma3.c can have a false negative.
  96 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
  97 # Similarly, without this, you will see:
  98 # direct2s.c:35: warning: current file is older than direct2.c
  99 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
 100 # lto-plugin
 101 lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
 102 lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
 103 # And libraries, at last
 104 libbanshee/configure: libbanshee/configure.ac
 105 libmudflap/configure: libmudflap/configure.ac
 106 libobjc/configure: libobjc/configure.ac
 107 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
 108 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
 109 zlib/configure: zlib/configure.ac zlib/aclocal.m4
 110 fastjar/aclocal.m4: fastjar/configure.ac
 111 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
 112 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
 113 boehm-gc/aclocal.m4: boehm-gc/configure.ac
 114 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
 115 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
 116 libada/configure: libada/configure.ac
 117 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
 118 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
 119 libffi/configure: libffi/configure.ac libffi/aclocal.m4
 120 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
 121 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
 122 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
 123 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
 124 libjava/aclocal.m4: libjava/configure.ac
 125 libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
 126 libjava/configure: libjava/configure.ac libjava/aclocal.m4
 127 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 128 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 129 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 130 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 131 libcpp/aclocal.m4: libcpp/configure.ac
 132 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 133 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
 134 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
 135 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 136 libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 137 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
 138 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 139 libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
 140 libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
 141 libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
 142 libitm/configure: libitm/configure.ac libitm/aclocal.m4
 143 libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
 144 # Top level
 145 Makefile.in: Makefile.tpl Makefile.def
 146 configure: configure.ac config/acx.m4
 147 EOF
 148 }
 149
 150
 151 # This function touches generated files such that the ``end'' user does
 152 # not have to rebuild them.
 153 touch_files () {
 154     rm -f Makefile.$$
 155     echo 'all: \' > Makefile.$$
 156     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 157     echo '; @true' >> Makefile.$$
 158     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 159     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 160     echo ':' >> Makefile.$$
 161     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 162     echo '      echo Touching $@...; \' >> Makefile.$$
 163     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 164     echo '      touch $@' >> Makefile.$$
 165     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 166
 167     # We would have to explicitly shut off the "Entering... Leaving..."
 168     # messages through "--no-print-directory" to handle the case when
 169     # we were called from a recursive invocation (i.e. "$(MAKE)" in a
 170     # Makefile, not just make).  Passing only "-s" doesn't help then,
 171     # because make has helpfully added "-w" to MAKEFLAGS automatically.
 172     # Unfortunately we do not require GNU make other than for building
 173     # and testing, so let's just grep known text explicitly echoed by
 174     # the rule.
 175     while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
 176       sleep 1
 177     done 2>&1
 178     rm -f Makefile.$$
 179 }
 180
 181
 182 # Whenever we update the tree or install a patch, we may be modifying
 183 # this script.  By re-execing it, we ensure that the appropriate
 184 # dependencies and rules will be used.
 185 touch_files_reexec () {
 186     chat "Adjusting file timestamps"
 187     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 188 }
 189
 190 # This functions applies a patch to an existing tree.
 191 apply_patch () {
 192     if [ -f "$1" ]; then
 193         echo "Applying patch file $1"
 194         case $1 in
 195         *gz)
 196             gzip -d -c "$1" | patch -p1 ;;
 197         *bz2)
 198             bzip2 -d -c "$1" | patch -p1 ;;
 199         *)
 200             patch -p1 < "$1";;
 201         esac
 202     fi
 203     touch_files_reexec
 204 }
 205
 206 # Check whether this indeed looks like a local tree.
 207 if [ ! -f gcc/version.c ]; then
 208     echo "This does not seem to be a GCC tree!"
 209     exit
 210 fi
 211
 212 case "$1" in
 213 --silent)
 214     silent=t
 215     shift
 216     ;;
 217 esac
 218
 219 case "$1" in
 220 # First of all, check whether we are going to process a patch.
 221 --patch)
 222     if test "$#" != 2; then
 223         echo "$1" expects only one argument >&2
 224         exit 1
 225     fi
 226     apply_patch "${2}"
 227     exit $?
 228     ;;
 229
 230 --touch)
 231     if test "$#" != 1; then
 232         echo "$1" does not expect any argument >&2
 233         exit 1
 234     fi
 235     touch_files
 236     exit $?
 237     ;;
 238
 239 --list)
 240     if test "$#" != 1; then
 241         echo "$1" does not expect any argument >&2
 242         exit 1
 243     fi
 244     files_and_dependencies | sed 's/ /: /'
 245     exit $?
 246     ;;
 247
 248 --help)
 249     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 250 \
 251
 252 p
 253 }' \
 254         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 255     exit $?
 256     ;;
 257
 258 esac
 259
 260 # Check for known version control systems.
 261 if [ -d .git ]; then
 262     GCC_GIT=${GCC_GIT-${GIT-git}}
 263     vcs_type="git"
 264 elif [ -d .hg ]; then
 265     GCC_HG=${GCC_HG-${HG-hg}}
 266     vcs_type="hg"
 267 elif [ -d .svn ]; then
 268     GCC_SVN=${GCC_SVN-${SVN-svn}}
 269     vcs_type="svn"
 270 else
 271     echo "This does not seem to be a GCC GIT/HG/SVN tree!"
 272     exit
 273 fi
 274
 275 # Check command-line options
 276 if [ x"${1}"x = x"--nostdflags"x ]; then
 277     shift
 278 else
 279     set -- $UPDATE_OPTIONS ${1+"$@"}
 280 fi
 281
 282 case $vcs_type in
 283     git)
 284         chat "Updating GIT tree"
 285
 286         $GCC_GIT diff --quiet --exit-code HEAD
 287         if [ $? -ne 0 ]; then
 288             echo "Attempting to update a dirty git tree!" >&2
 289             echo "Commit or stash your changes first and retry." >&2
 290             exit 1
 291         fi
 292
 293         $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
 294         if [ $? -ne 0 ]; then
 295             (touch_files_reexec)
 296             echo "git pull of full tree failed." >&2
 297             exit 1
 298         fi
 299
 300         revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
 301         branch=`$GCC_GIT name-rev --name-only HEAD || :`
 302         ;;
 303
 304     hg)
 305         chat "Updating HG tree"
 306
 307         # Add -q so untracked files aren't listed.
 308         if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
 309             echo "Attempting to update a dirty hg tree!" >&2
 310             echo "Commit or revert your changes first and retry." >&2
 311             exit 1
 312         fi
 313
 314         # Check for mq extension.  mq patches must be popped so tip has
 315         # been converted from the SVN tree.
 316         if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
 317             # FIXME: Perhaps pop queue instead?  We could do that since we
 318             # know the tree is clean.
 319             echo "Attempting to update hg tree with mq patches applied!" >&2
 320             echo "Pop your patches first and retry." >&2
 321             exit 1
 322         fi
 323
 324         # Update tree, but make sure to only pull the default branch.
 325         # Otherwise all branches in the upstream repo are added, even if
 326         # only a single one has been cloned.
 327         $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
 328         if [ $? -ne 0 ]; then
 329             (touch_files_reexec)
 330             echo "hg pull of full tree failed." >&2
 331             exit 1
 332         fi
 333
 334         # Update tree.  Needs to be done separately from pull so
 335         # gcc_update -rREV works.
 336         $GCC_HG update ${silent+-q} ${1+"$@"}
 337         if [ $? -ne 0 ]; then
 338             (touch_files_reexec)
 339             echo "hg update of full tree failed." >&2
 340             exit 1
 341         fi
 342
 343         # Extract SVN revision corresponding to parents, as stored by
 344         # hg convert.  Before hg 1.4.3, there's no template keyword
 345         # corresponding to the extra: tag, so need to use hg log --debug
 346         # to extract the info.
 347         parents=`$GCC_HG parents --template '{rev}'`
 348         convert_revision=`$GCC_HG log --debug -r$parents | \
 349             sed -ne "/^extra:.*convert_revision=svn:/ {
 350                 s%^[^/]*/%%
 351                 p
 352             }"`
 353         revision=`echo $convert_revision | sed -e 's/.*@//'`
 354         branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
 355         ;;
 356
 357     svn)
 358         chat "Updating SVN tree"
 359
 360         $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 361         if [ $? -ne 0 ]; then
 362             (touch_files_reexec)
 363             echo "SVN update of full tree failed." >&2
 364             exit 1
 365         fi
 366
 367         revision=`svn info | awk '/Revision:/ { print $2 }'`
 368         branch=`svn info | sed -ne "/URL:/ {
 369             s,.*/trunk,trunk,
 370             s,.*/branches/,,
 371             s,.*/tags/,,
 372             p
 373         }"`
 374         ;;
 375 esac
 376
 377 rm -f LAST_UPDATED gcc/REVISION
 378 {
 379     date
 380     echo "`TZ=UTC date` (revision $revision)"
 381 } > LAST_UPDATED
 382 echo "[$branch revision $revision]" > gcc/REVISION
 383
 384 touch_files_reexec