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  25 # only generated files that appear to be out of date in the local tree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