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  25 # only generated files that appear to be out of date in the local tree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/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
  86 gcc/config/avr/multilib.h: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
  87 gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
  88 gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
  89 gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh
  90 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
  91 gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh
  92 gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh
  93 gcc/config/tilegx/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
  94 gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
  95 # And then, language-specific files
  96 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  97 gcc/java/keyword.h: gcc/java/keyword.gperf
  98 # testsuite
  99 # Without this, _Pragma3.c can have a false negative.
 100 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
 101 # Similarly, without this, you will see:
 102 # direct2s.c:35: warning: current file is older than direct2.c
 103 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
 104 # lto-plugin
 105 lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
 106 lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
 107 # And libraries, at last
 108 libbanshee/configure: libbanshee/configure.ac
 109 libmudflap/configure: libmudflap/configure.ac
 110 libobjc/configure: libobjc/configure.ac
 111 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
 112 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
 113 zlib/configure: zlib/configure.ac zlib/aclocal.m4
 114 fastjar/aclocal.m4: fastjar/configure.ac
 115 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
 116 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
 117 boehm-gc/aclocal.m4: boehm-gc/configure.ac
 118 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
 119 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
 120 libada/configure: libada/configure.ac
 121 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
 122 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
 123 libffi/configure: libffi/configure.ac libffi/aclocal.m4
 124 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
 125 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
 126 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
 127 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
 128 libjava/aclocal.m4: libjava/configure.ac
 129 libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
 130 libjava/configure: libjava/configure.ac libjava/aclocal.m4
 131 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
 132 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 133 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 134 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
 135 libcpp/aclocal.m4: libcpp/configure.ac
 136 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 137 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
 138 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
 139 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 140 libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 141 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
 142 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 143 libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
 144 libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
 145 libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
 146 libitm/configure: libitm/configure.ac libitm/aclocal.m4
 147 libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
 148 # Top level
 149 Makefile.in: Makefile.tpl Makefile.def
 150 configure: configure.ac config/acx.m4
 151 EOF
 152 }
 153
 154
 155 # This function touches generated files such that the ``end'' user does
 156 # not have to rebuild them.
 157 touch_files () {
 158     rm -f Makefile.$$
 159     echo 'all: \' > Makefile.$$
 160     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 161     echo '; @true' >> Makefile.$$
 162     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 163     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 164     echo ':' >> Makefile.$$
 165     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 166     echo '      echo Touching $@...; \' >> Makefile.$$
 167     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 168     echo '      touch $@' >> Makefile.$$
 169     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 170
 171     # We would have to explicitly shut off the "Entering... Leaving..."
 172     # messages through "--no-print-directory" to handle the case when
 173     # we were called from a recursive invocation (i.e. "$(MAKE)" in a
 174     # Makefile, not just make).  Passing only "-s" doesn't help then,
 175     # because make has helpfully added "-w" to MAKEFLAGS automatically.
 176     # Unfortunately we do not require GNU make other than for building
 177     # and testing, so let's just grep known text explicitly echoed by
 178     # the rule.
 179     while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
 180       sleep 1
 181     done 2>&1
 182     rm -f Makefile.$$
 183 }
 184
 185
 186 # Whenever we update the tree or install a patch, we may be modifying
 187 # this script.  By re-execing it, we ensure that the appropriate
 188 # dependencies and rules will be used.
 189 touch_files_reexec () {
 190     chat "Adjusting file timestamps"
 191     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 192 }
 193
 194 # This functions applies a patch to an existing tree.
 195 apply_patch () {
 196     if [ -f "$1" ]; then
 197         echo "Applying patch file $1"
 198         case $1 in
 199         *gz)
 200             gzip -d -c "$1" | patch -p1 ;;
 201         *bz2)
 202             bzip2 -d -c "$1" | patch -p1 ;;
 203         *)
 204             patch -p1 < "$1";;
 205         esac
 206     fi
 207     touch_files_reexec
 208 }
 209
 210 # Check whether this indeed looks like a local tree.
 211 if [ ! -f gcc/version.c ]; then
 212     echo "This does not seem to be a GCC tree!"
 213     exit
 214 fi
 215
 216 case "$1" in
 217 --silent)
 218     silent=t
 219     shift
 220     ;;
 221 esac
 222
 223 case "$1" in
 224 # First of all, check whether we are going to process a patch.
 225 --patch)
 226     if test "$#" != 2; then
 227         echo "$1" expects only one argument >&2
 228         exit 1
 229     fi
 230     apply_patch "${2}"
 231     exit $?
 232     ;;
 233
 234 --touch)
 235     if test "$#" != 1; then
 236         echo "$1" does not expect any argument >&2
 237         exit 1
 238     fi
 239     touch_files
 240     exit $?
 241     ;;
 242
 243 --list)
 244     if test "$#" != 1; then
 245         echo "$1" does not expect any argument >&2
 246         exit 1
 247     fi
 248     files_and_dependencies | sed 's/ /: /'
 249     exit $?
 250     ;;
 251
 252 --help)
 253     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 254 \
 255
 256 p
 257 }' \
 258         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 259     exit $?
 260     ;;
 261
 262 esac
 263
 264 # Check for known version control systems.
 265 if [ -d .git ]; then
 266     GCC_GIT=${GCC_GIT-${GIT-git}}
 267     vcs_type="git"
 268 elif [ -d .hg ]; then
 269     GCC_HG=${GCC_HG-${HG-hg}}
 270     vcs_type="hg"
 271 elif [ -d .svn ]; then
 272     GCC_SVN=${GCC_SVN-${SVN-svn}}
 273     vcs_type="svn"
 274 else
 275     echo "This does not seem to be a GCC GIT/HG/SVN tree!"
 276     exit
 277 fi
 278
 279 # Check command-line options
 280 if [ x"${1}"x = x"--nostdflags"x ]; then
 281     shift
 282 else
 283     set -- $UPDATE_OPTIONS ${1+"$@"}
 284 fi
 285
 286 case $vcs_type in
 287     git)
 288         chat "Updating GIT tree"
 289
 290         $GCC_GIT diff --quiet --exit-code HEAD
 291         if [ $? -ne 0 ]; then
 292             echo "Attempting to update a dirty git tree!" >&2
 293             echo "Commit or stash your changes first and retry." >&2
 294             exit 1
 295         fi
 296
 297         $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
 298         if [ $? -ne 0 ]; then
 299             (touch_files_reexec)
 300             echo "git pull of full tree failed." >&2
 301             exit 1
 302         fi
 303
 304         revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
 305         branch=`$GCC_GIT name-rev --name-only HEAD || :`
 306         ;;
 307
 308     hg)
 309         chat "Updating HG tree"
 310
 311         # Add -q so untracked files aren't listed.
 312         if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
 313             echo "Attempting to update a dirty hg tree!" >&2
 314             echo "Commit or revert your changes first and retry." >&2
 315             exit 1
 316         fi
 317
 318         # Check for mq extension.  mq patches must be popped so tip has
 319         # been converted from the SVN tree.
 320         if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
 321             # FIXME: Perhaps pop queue instead?  We could do that since we
 322             # know the tree is clean.
 323             echo "Attempting to update hg tree with mq patches applied!" >&2
 324             echo "Pop your patches first and retry." >&2
 325             exit 1
 326         fi
 327
 328         # Update tree, but make sure to only pull the default branch.
 329         # Otherwise all branches in the upstream repo are added, even if
 330         # only a single one has been cloned.
 331         $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
 332         if [ $? -ne 0 ]; then
 333             (touch_files_reexec)
 334             echo "hg pull of full tree failed." >&2
 335             exit 1
 336         fi
 337
 338         # Update tree.  Needs to be done separately from pull so
 339         # gcc_update -rREV works.
 340         $GCC_HG update ${silent+-q} ${1+"$@"}
 341         if [ $? -ne 0 ]; then
 342             (touch_files_reexec)
 343             echo "hg update of full tree failed." >&2
 344             exit 1
 345         fi
 346
 347         # Extract SVN revision corresponding to parents, as stored by
 348         # hg convert.  Before hg 1.4.3, there's no template keyword
 349         # corresponding to the extra: tag, so need to use hg log --debug
 350         # to extract the info.
 351         parents=`$GCC_HG parents --template '{rev}'`
 352         convert_revision=`$GCC_HG log --debug -r$parents | \
 353             sed -ne "/^extra:.*convert_revision=svn:/ {
 354                 s%^[^/]*/%%
 355                 p
 356             }"`
 357         revision=`echo $convert_revision | sed -e 's/.*@//'`
 358         branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
 359         ;;
 360
 361     svn)
 362         chat "Updating SVN tree"
 363
 364         $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 365         if [ $? -ne 0 ]; then
 366             (touch_files_reexec)
 367             echo "SVN update of full tree failed." >&2
 368             exit 1
 369         fi
 370
 371         revision=`svn info | awk '/Revision:/ { print $2 }'`
 372         branch=`svn info | sed -ne "/URL:/ {
 373             s,.*/trunk,trunk,
 374             s,.*/branches/,,
 375             s,.*/tags/,,
 376             p
 377         }"`
 378         ;;
 379 esac
 380
 381 rm -f LAST_UPDATED gcc/REVISION
 382 {
 383     date
 384     echo "`TZ=UTC date` (revision $revision)"
 385 } > LAST_UPDATED
 386 echo "[$branch revision $revision]" > gcc/REVISION
 387
 388 touch_files_reexec