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24# If the first parameter is --touch, no svn operation will be performed, 25# only generated files that appear to be out of date in the local tree 26# will be touched. 27# 28# If the first parameter is --list, a list of the generated files and 29# their dependencies will be printed;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). 43UPDATE_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. 47LANG=C 48LC_ALL=C 49export 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 54self=$0 55 56# This function prints its arguments to standard output unless 57# "silent" is set. 58unset silent 59chat () { 60 if [ -z "$silent" ]; then 61 echo "$@" 62 fi 63} 64 65# This function prints a list of all generated files, along with their 66# dependencies. Note that only one target is supported per line: the 67# colon is stripped from the output. 68files_and_dependencies () { 69 sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF 70# fixincludes 71fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4 72fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4 73# intl library 74intl/plural.c: intl/plural.y 75intl/configure: intl/configure.ac intl/aclocal.m4 76intl/config.h.in: intl/configure.ac intl/aclocal.m4 77# Now, proceed to gcc automatically generated files 78gcc/configure: gcc/configure.ac 79gcc/cstamp-h.in: gcc/configure.ac 80gcc/config.in: gcc/cstamp-h.in 81gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def 82gcc/config/aarch64/aarch64-tune.md: gcc/config/aarch64/aarch64-cores.def gcc/config/aarch64/gentune.sh 83gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk 84gcc/config/arm/arm-tables.opt: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk 85gcc/config/arm/arm-cpu.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk 86gcc/config/arm/arm-cpu-data.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk 87gcc/config/arm/arm-cpu-cdata.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk 88gcc/config/avr/avr-tables.opt: gcc/config/avr/avr-mcus.def gcc/config/avr/genopt.sh 89gcc/config/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk 90gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh 91gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh 92gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh 93gcc/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 94gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh 95gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh 96gcc/config/tilegx/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc 97gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc 98# And then, language-specific files 99gcc/cp/cfns.h: gcc/cp/cfns.gperf 100# testsuite 101# Without this, _Pragma3.c can have a false negative. 102gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h 103# Similarly, without this, you will see: 104# direct2s.c:35: warning: current file is older than direct2.c 105gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c 106# lto-plugin 107lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4 108lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4 109# And libraries, at last 110libbanshee/configure: libbanshee/configure.ac 111libmudflap/configure: libmudflap/configure.ac 112libobjc/configure: libobjc/configure.ac 113zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4 114zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4 115zlib/configure: zlib/configure.ac zlib/aclocal.m4 116fastjar/aclocal.m4: fastjar/configure.ac 117fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4 118fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4 119boehm-gc/aclocal.m4: boehm-gc/configure.ac 120boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4 121boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4 122libada/configure: libada/configure.ac 123libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4 124libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4 125libffi/configure: libffi/configure.ac libffi/aclocal.m4 126libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4 127libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4 128libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4 129libquadmath/configure: libquadmath/configure.ac libquadmath/aclocal.m4 130libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4 131libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4 132libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4 133libcpp/aclocal.m4: libcpp/configure.ac 134libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4 135libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4 136libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4 137libgomp/Makefile.am: libgomp/plugin/Makefrag.am 138libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 139libgomp/testsuite/Makefile.in: libgomp/testsuite/Makefile.am libgomp/aclocal.m4 140libgomp/configure.ac: libgomp/plugin/configfrag.ac 141libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4 142libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4 143libhsail-rt/aclocal.m4: libhsail-rt/configure.ac 144libhsail-rt/Makefile.in: libhsail-rt/Makefile.am libhsail-rt/aclocal.m4 145libhsail-rt/configure: libhsail-rt/configure.ac libhsail-rt/aclocal.m4 146libhsail-rt/target-config.h.in: libhsail-rt/configure.ac libhsail-rt/aclocal.m4 147libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4 148libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4 149libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4 150libitm/configure: libitm/configure.ac libitm/aclocal.m4 151libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4 152libatomic/aclocal.m4: libatomic/configure.ac libatomic/acinclude.m4 153libatomic/Makefile.in: libatomic/Makefile.am libatomic/aclocal.m4 154libatomic/testsuite/Makefile.in: libatomic/testsuite/Makefile.am libatomic/aclocal.m4 155libatomic/configure: libatomic/configure.ac libatomic/aclocal.m4 156libatomic/auto-config.h.in: libatomic/configure.ac libatomic/aclocal.m4 157libsanitizer/aclocal.m4: libsanitizer/configure.ac libsanitizer/acinclude.m4 158libsanitizer/Makefile.in: libsanitizer/Makefile.am libsanitizer/aclocal.m4 159libsanitizer/configure: libsanitizer/configure.ac libsanitizer/aclocal.m4 160libsanitizer/asan/Makefile.in: libsanitizer/asan/Makefile.am libsanitizer/aclocal.m4 161libsanitizer/interception/Makefile.in: libsanitizer/interception/Makefile.am libsanitizer/aclocal.m4 162libsanitizer/sanitizer_common/Makefile.in: libsanitizer/sanitizer_common/Makefile.am libsanitizer/aclocal.m4 163libvtv/aclocal.m4: libvtv/configure.ac libvtv/acinclude.m4 164libvtv/Makefile.in: libvtv/Makefile.am libvtv/aclocal.m4 165libvtv/configure: libvtv/configure.ac libvtv/aclocal.m4 166libcilkrts/aclocal.m4: libcilkrts/configure.ac 167libcilkrts/Makefile.in: libcilkrts/Makefile.am 168libcilkrts/configure: libcilkrts/configure.ac 169liboffloadmic/aclocal.m4: liboffloadmic/configure.ac 170liboffloadmic/Makefile.in: liboffloadmic/Makefile.am 171liboffloadmic/configure: liboffloadmic/configure.ac 172liboffloadmic/plugin/aclocal.m4: liboffloadmic/plugin/configure.ac 173liboffloadmic/plugin/Makefile.in: liboffloadmic/plugin/Makefile.am 174liboffloadmic/plugin/configure: liboffloadmic/plugin/configure.ac 175libbacktrace/aclocal.m4: libbacktrace/configure.ac 176libbacktrace/Makefile.in: libbacktrace/Makefile.am libbacktrace/aclocal.m4 177libbacktrace/configure: libbacktrace/configure.ac libbacktrace/aclocal.m4 178libbacktrace/config.h.in: libbacktrace/configure.ac libbacktrace/aclocal.m4 179# Top level 180Makefile.in: Makefile.tpl Makefile.def 181configure: configure.ac config/acx.m4 182EOF 183} 184 185 186# This function touches generated files such that the ``end'' user does 187# not have to rebuild them. 188touch_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. 220touch_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. 226apply_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. 242if [ ! -f gcc/version.c ]; then 243 echo "This does not seem to be a GCC tree!" 244 exit 245fi 246 247case "$1" in 248--silent) 249 silent=t 250 shift 251 ;; 252esac 253 254case "$1" in 255# First of all, check whether we are going to process a patch. 256--patch) 257 if test "$#" != 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 $? 281 ;; 282 283--help) 284 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ 285\ 286 287p 288}' \ 289 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 290 exit $? 291 ;; 292 293esac 294 295# Check for known version control systems. 296if [ -d .git ]; then 297 GCC_GIT=${GCC_GIT-${GIT-git}} 298 vcs_type="git" 299elif [ -d .hg ]; then 300 GCC_HG=${GCC_HG-${HG-hg}} 301 vcs_type="hg" 302elif [ -d .svn ]; then 303 GCC_SVN=${GCC_SVN-${SVN-svn}} 304 vcs_type="svn" 305else 306 echo "This does not seem to be a GCC GIT/HG/SVN tree!" 307 exit 308fi 309 310# Check command-line options 311if [ x"${1}"x = x"--nostdflags"x ]; then 312 shift 313else 314 set -- $UPDATE_OPTIONS ${1+"$@"} 315fi 316 317case $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 [ $? -ne 0 ]; then 330 (touch_files_reexec) 331 echo "git pull of full tree failed." >&2 332 exit 1 333 fi 334 335 revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H` 336 branch=`$GCC_GIT name-rev --name-only HEAD || :` 337 ;; 338 339 hg) 340 chat "Updating HG tree" 341 342 # Add -q so untracked files aren't listed. 343 if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then 344 echo "Attempting to update a dirty hg tree!" >&2 345 echo "Commit or revert your changes first and retry." >&2 346 exit 1 347 fi 348 349 # Check for mq extension. mq patches must be popped so tip has 350 # been converted from the SVN tree. 351 if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then 352 # FIXME: Perhaps pop queue instead? We could do that since we 353 # know the tree is clean. 354 echo "Attempting to update hg tree with mq patches applied!" >&2 355 echo "Pop your patches first and retry." >&2 356 exit 1 357 fi 358 359 # Update tree, but make sure to only pull the default branch. 360 # Otherwise all branches in the upstream repo are added, even if 361 # only a single one has been cloned. 362 $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"} 363 if [ $? -ne 0 ]; then 364 (touch_files_reexec) 365 echo "hg pull of full tree failed." >&2 366 exit 1 367 fi 368 369 # Update tree. Needs to be done separately from pull so 370 # gcc_update -rREV works. 371 $GCC_HG update ${silent+-q} ${1+"$@"} 372 if [ $? -ne 0 ]; then 373 (touch_files_reexec) 374 echo "hg update of full tree failed." >&2 375 exit 1 376 fi 377 378 # Extract SVN revision corresponding to parents, as stored by 379 # hg convert. Before hg 1.4.3, there's no template keyword 380 # corresponding to the extra: tag, so need to use hg log --debug 381 # to extract the info. 382 parents=`$GCC_HG parents --template '{rev}'` 383 convert_revision=`$GCC_HG log --debug -r$parents | \ 384 sed -ne "/^extra:.*convert_revision=svn:/ { 385 s%^[^/]*/%% 386 p 387 }"` 388 revision=`echo $convert_revision | sed -e 's/.*@//'` 389 branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'` 390 ;; 391 392 svn) 393 chat "Updating SVN tree" 394 395 $GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"} 396 if [ $? -ne 0 ]; then 397 (touch_files_reexec) 398 echo "SVN update of full tree failed." >&2 399 exit 1 400 fi 401 402 revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'` 403 branch=`$GCC_SVN info | sed -ne "/^URL:/ { 404 s,.*/trunk,trunk, 405 s,.*/branches/,, 406 s,.*/tags/,, 407 p 408 }"` 409 ;; 410esac 411 412rm -f LAST_UPDATED gcc/REVISION 413{ 414 date 415 echo "`TZ=UTC date` (revision $revision)" 416} > LAST_UPDATED 417echo "[$branch revision $revision]" > gcc/REVISION 418 419touch_files_reexec 420