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,
   8 # 2010, 2011, 2012, 2013, 2014, 2015, 2017 Free Software Foundation
   9 # Originally by Gerald Pfeifer <gerald@pfeifer.com>, 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  25 # only generated files that appear to be out of date in the local tree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/plural-config.h: 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/aarch64/aarch64-tune.md: gcc/config/aarch64/aarch64-cores.def gcc/config/aarch64/gentune.sh
  84 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
  85 gcc/config/arm/arm-tables.opt: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
  86 gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
  87 gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
  88 gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh
  89 gcc/config/loongarch/loongarch-str.h: gcc/config/loongarch/genopts/genstr.sh gcc/config/loongarch/genopts/loongarch-strings
  90 gcc/config/loongarch/loongarch.opt: gcc/config/loongarch/genopts/genstr.sh gcc/config/loongarch/genopts/loongarch.opt.in
  91 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
  92 gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh
  93 gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh
  94 gcc/config/rs6000/fusion.md: gcc/config/rs6000/genfusion.pl
  95 gcc/config/tilegx/mul-tables.cc: gcc/config/tilepro/gen-mul-tables.cc
  96 gcc/config/tilepro/mul-tables.cc: gcc/config/tilepro/gen-mul-tables.cc
  97 # And then, language-specific files
  98 gcc/cp/cfns.h: gcc/cp/cfns.gperf
  99 # testsuite
 100 # Without this, _Pragma3.c can have a false negative.
 101 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
 102 # Similarly, without this, you will see:
 103 # direct2s.c:35: warning: current file is older than direct2.c
 104 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
 105 # lto-plugin
 106 lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
 107 lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
 108 # tools
 109 c++tools/configure: c++tools/configure.ac
 110 c++tools/config.h.in: c++tools/configure.ac
 111 # And libraries, at last
 112 libbanshee/configure: libbanshee/configure.ac
 113 libmudflap/configure: libmudflap/configure.ac
 114 libobjc/configure: libobjc/configure.ac
 115 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
 116 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
 117 zlib/configure: zlib/configure.ac zlib/aclocal.m4
 118 fastjar/aclocal.m4: fastjar/configure.ac
 119 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
 120 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
 121 boehm-gc/aclocal.m4: boehm-gc/configure.ac
 122 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
 123 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
 124 libada/configure: libada/configure.ac
 125 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
 126 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
 127 libffi/configure: libffi/configure.ac libffi/aclocal.m4
 128 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
 129 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
 130 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
 131 libquadmath/configure: libquadmath/configure.ac libquadmath/aclocal.m4
 132 libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4
 133 libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4
 134 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
 135 libcody/configure: libcody/configure.ac libcody/config.m4
 136 libcpp/aclocal.m4: libcpp/configure.ac
 137 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
 138 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
 139 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
 140 libgomp/Makefile.am: libgomp/plugin/Makefrag.am
 141 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
 142 libgomp/testsuite/Makefile.in: libgomp/testsuite/Makefile.am libgomp/aclocal.m4
 143 libgomp/configure.ac: libgomp/plugin/configfrag.ac
 144 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
 145 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
 146 libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
 147 libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
 148 libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
 149 libitm/configure: libitm/configure.ac libitm/aclocal.m4
 150 libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
 151 libatomic/aclocal.m4: libatomic/configure.ac libatomic/acinclude.m4
 152 libatomic/Makefile.in: libatomic/Makefile.am libatomic/aclocal.m4
 153 libatomic/testsuite/Makefile.in: libatomic/testsuite/Makefile.am libatomic/aclocal.m4
 154 libatomic/configure: libatomic/configure.ac libatomic/aclocal.m4
 155 libatomic/auto-config.h.in: libatomic/configure.ac libatomic/aclocal.m4
 156 libsanitizer/aclocal.m4: libsanitizer/configure.ac libsanitizer/acinclude.m4
 157 libsanitizer/Makefile.in: libsanitizer/Makefile.am libsanitizer/aclocal.m4
 158 libsanitizer/configure: libsanitizer/configure.ac libsanitizer/aclocal.m4
 159 libsanitizer/asan/Makefile.in: libsanitizer/asan/Makefile.am libsanitizer/aclocal.m4
 160 libsanitizer/interception/Makefile.in: libsanitizer/interception/Makefile.am libsanitizer/aclocal.m4
 161 libsanitizer/sanitizer_common/Makefile.in: libsanitizer/sanitizer_common/Makefile.am libsanitizer/aclocal.m4
 162 libvtv/aclocal.m4: libvtv/configure.ac libvtv/acinclude.m4
 163 libvtv/Makefile.in: libvtv/Makefile.am libvtv/aclocal.m4
 164 libvtv/configure: libvtv/configure.ac libvtv/aclocal.m4
 165 liboffloadmic/aclocal.m4: liboffloadmic/configure.ac
 166 liboffloadmic/Makefile.in: liboffloadmic/Makefile.am
 167 liboffloadmic/configure: liboffloadmic/configure.ac
 168 liboffloadmic/plugin/aclocal.m4: liboffloadmic/plugin/configure.ac
 169 liboffloadmic/plugin/Makefile.in: liboffloadmic/plugin/Makefile.am
 170 liboffloadmic/plugin/configure: liboffloadmic/plugin/configure.ac
 171 libbacktrace/aclocal.m4: libbacktrace/configure.ac
 172 libbacktrace/Makefile.in: libbacktrace/Makefile.am libbacktrace/aclocal.m4
 173 libbacktrace/configure: libbacktrace/configure.ac libbacktrace/aclocal.m4
 174 libbacktrace/config.h.in: libbacktrace/configure.ac libbacktrace/aclocal.m4
 175 libphobos/Makefile.in: libphobos/Makefile.am libphobos/configure.ac libphobos/aclocal.m4
 176 libphobos/aclocal.m4: libphobos/configure.ac libphobos/acinclude.m4
 177 libphobos/config.h.in: libphobos/configure.ac libphobos/aclocal.m4
 178 libphobos/configure: libphobos/configure.ac libphobos/aclocal.m4
 179 libphobos/src/Makefile.in: libphobos/src/Makefile.am libphobos/aclocal.m4
 180 libphobos/testsuite/Makefile.in: libphobos/testsuite/Makefile.am libphobos/aclocal.m4
 181 # Top level
 182 Makefile.in: Makefile.tpl Makefile.def
 183 configure: configure.ac config/acx.m4
 184 EOF
 185 }
 186
 187
 188 # This function touches generated files such that the ``end'' user does
 189 # not have to rebuild them.
 190 touch_files () {
 191     rm -f Makefile.$$
 192     echo 'all: \' > Makefile.$$
 193     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 194     echo '; @true' >> Makefile.$$
 195     files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
 196     files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
 197     echo ':' >> Makefile.$$
 198     echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
 199     echo '      echo Touching $@...; \' >> Makefile.$$
 200     chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
 201     echo '      touch $@' >> Makefile.$$
 202     files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
 203
 204     # We would have to explicitly shut off the "Entering... Leaving..."
 205     # messages through "--no-print-directory" to handle the case when
 206     # we were called from a recursive invocation (i.e. "$(MAKE)" in a
 207     # Makefile, not just make).  Passing only "-s" doesn't help then,
 208     # because make has helpfully added "-w" to MAKEFLAGS automatically.
 209     # Unfortunately we do not require GNU make other than for building
 210     # and testing, so let's just grep known text explicitly echoed by
 211     # the rule.
 212     while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
 213       sleep 1
 214     done 2>&1
 215     rm -f Makefile.$$
 216 }
 217
 218
 219 # Whenever we update the tree or install a patch, we may be modifying
 220 # this script.  By re-execing it, we ensure that the appropriate
 221 # dependencies and rules will be used.
 222 touch_files_reexec () {
 223     chat "Adjusting file timestamps"
 224     exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
 225 }
 226
 227 # This functions applies a patch to an existing tree.
 228 apply_patch () {
 229     if [ -f "$1" ]; then
 230         echo "Applying patch file $1"
 231         case $1 in
 232         *gz)
 233             gzip -d -c "$1" | patch -p1 ;;
 234         *bz2)
 235             bzip2 -d -c "$1" | patch -p1 ;;
 236         *)
 237             patch -p1 < "$1";;
 238         esac
 239     fi
 240     touch_files_reexec
 241 }
 242
 243 # Check whether this indeed looks like a local tree.
 244 if [ ! -f gcc/reload.cc ]; then
 245     echo "This does not seem to be a GCC tree!"
 246     exit
 247 fi
 248
 249 case "$1" in
 250 --silent)
 251     silent=t
 252     shift
 253     ;;
 254 esac
 255
 256 case "$1" in
 257 # First of all, check whether we are going to process a patch.
 258 --patch)
 259     if test "$#" != 2; then
 260         echo "$1" expects only one argument >&2
 261         exit 1
 262     fi
 263     apply_patch "${2}"
 264     exit $?
 265     ;;
 266
 267 --touch)
 268     if test "$#" != 1; then
 269         echo "$1" does not expect any argument >&2
 270         exit 1
 271     fi
 272     touch_files
 273     exit $?
 274     ;;
 275
 276 --list)
 277     if test "$#" != 1; then
 278         echo "$1" does not expect any argument >&2
 279         exit 1
 280     fi
 281     files_and_dependencies | sed 's/ /: /'
 282     exit $?
 283     ;;
 284
 285 --help)
 286     sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
 287 \
 288
 289 p
 290 }' \
 291         -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
 292     exit $?
 293     ;;
 294
 295 esac
 296
 297 # Check for known version control systems.
 298 if [ -d .git ] || [ -f .git ]; then
 299     GCC_GIT=${GCC_GIT-${GIT-git}}
 300     vcs_type="git"
 301 elif [ -d .hg ]; then
 302     GCC_HG=${GCC_HG-${HG-hg}}
 303     vcs_type="hg"
 304 elif [ -d .svn ]; then
 305     GCC_SVN=${GCC_SVN-${SVN-svn}}
 306     vcs_type="svn"
 307 else
 308     echo "This does not seem to be a GCC GIT/HG/SVN tree!"
 309     exit
 310 fi
 311
 312 # Check command-line options
 313 if [ x"${1}"x = x"--nostdflags"x ]; then
 314     shift
 315 else
 316     set -- $UPDATE_OPTIONS ${1+"$@"}
 317 fi
 318
 319 case $vcs_type in
 320     git)
 321         chat "Updating GIT tree"
 322
 323         $GCC_GIT diff --quiet --exit-code HEAD
 324         if [ $? -ne 0 ]; then
 325             echo "Attempting to update a dirty git tree!" >&2
 326             echo "Commit or stash your changes first and retry." >&2
 327             exit 1
 328         fi
 329
 330         $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
 331         if [ $? -ne 0 ]; then
 332             (touch_files_reexec)
 333             echo "git pull of full tree failed." >&2
 334             exit 1
 335         fi
 336
 337         # Open-coded version of "git gcc-descr" from contrib/gcc-git-customization.sh
 338         revision=`$GCC_GIT log -n1 --pretty=tformat:%h`
 339         r=`$GCC_GIT describe --all --match 'basepoints/gcc-[0-9]*' HEAD \
 340            | sed -n 's,^\(tags/\)\?basepoints/gcc-\([0-9]\+\)-\([0-9]\+\)-g[0-9a-f]*$,r\2-\3,p;s,^\(tags/\)\?basepoints/gcc-\([0-9]\+\)$,r\2-0,p'`;
 341         if test -n $r; then
 342                 o=`$GCC_GIT config --get gcc-config.upstream`;
 343                 rr=`echo $r | sed -n 's,^r\([0-9]\+\)-[0-9]\+\(-g[0-9a-f]\+\)\?$,\1,p'`;
 344                 if $GCC_GIT rev-parse --verify --quiet ${o:-origin}/releases/gcc-$rr >/dev/null; then
 345                         m=releases/gcc-$rr;
 346                 else
 347                         m=master;
 348                 fi;
 349                 if $GCC_GIT merge-base --is-ancestor HEAD ${o:-origin}/$m; then
 350                         revision=${r}-g${revision};
 351                 fi
 352         fi
 353         branch=`$GCC_GIT name-rev --name-only HEAD || :`
 354         ;;
 355
 356     hg)
 357         chat "Updating HG tree"
 358
 359         # Add -q so untracked files aren't listed.
 360         if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
 361             echo "Attempting to update a dirty hg tree!" >&2
 362             echo "Commit or revert your changes first and retry." >&2
 363             exit 1
 364         fi
 365
 366         # Check for mq extension.  mq patches must be popped so tip has
 367         # been converted from the SVN tree.
 368         if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
 369             # FIXME: Perhaps pop queue instead?  We could do that since we
 370             # know the tree is clean.
 371             echo "Attempting to update hg tree with mq patches applied!" >&2
 372             echo "Pop your patches first and retry." >&2
 373             exit 1
 374         fi
 375
 376         # Update tree, but make sure to only pull the default branch.
 377         # Otherwise all branches in the upstream repo are added, even if
 378         # only a single one has been cloned.
 379         $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
 380         if [ $? -ne 0 ]; then
 381             (touch_files_reexec)
 382             echo "hg pull of full tree failed." >&2
 383             exit 1
 384         fi
 385
 386         # Update tree.  Needs to be done separately from pull so
 387         # gcc_update -rREV works.
 388         $GCC_HG update ${silent+-q} ${1+"$@"}
 389         if [ $? -ne 0 ]; then
 390             (touch_files_reexec)
 391             echo "hg update of full tree failed." >&2
 392             exit 1
 393         fi
 394
 395         # Extract SVN revision corresponding to parents, as stored by
 396         # hg convert.  Before hg 1.4.3, there's no template keyword
 397         # corresponding to the extra: tag, so need to use hg log --debug
 398         # to extract the info.
 399         parents=`$GCC_HG parents --template '{rev}'`
 400         convert_revision=`$GCC_HG log --debug -r$parents | \
 401             sed -ne "/^extra:.*convert_revision=svn:/ {
 402                 s%^[^/]*/%%
 403                 p
 404             }"`
 405         revision=`echo $convert_revision | sed -e 's/.*@//'`
 406         branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
 407         ;;
 408
 409     svn)
 410         chat "Updating SVN tree"
 411
 412         $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
 413         if [ $? -ne 0 ]; then
 414             (touch_files_reexec)
 415             echo "SVN update of full tree failed." >&2
 416             exit 1
 417         fi
 418
 419         revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'`
 420         branch=`$GCC_SVN info | sed -ne "/^URL:/ {
 421             s,.*/trunk,trunk,
 422             s,.*/branches/,,
 423             s,.*/tags/,,
 424             p
 425         }"`
 426         ;;
 427 esac
 428
 429 rm -f LAST_UPDATED gcc/REVISION
 430 {
 431     date
 432     echo "`TZ=UTC date` (revision $revision)"
 433 } > LAST_UPDATED
 434 echo "[$branch $revision]" > gcc/REVISION
 435
 436 touch_files_reexec