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24# If the first parameter is --touch, no svn operation will be performed, 25# only generated files that appear to be out of date in the local tree 26# will be touched. 27# 28# If the first parameter is --list, a list of the generated files and 29# their dependencies will be printed;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). 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/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh 83gcc/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 84gcc/config/avr/avr-tables.opt: gcc/config/avr/avr-mcus.def gcc/config/avr/genopt.sh 85gcc/config/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk 86gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh 87gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh 88gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh 89gcc/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 90gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh 91gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh 92gcc/config/tilegx/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc 93gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc 94# And then, language-specific files 95gcc/cp/cfns.h: gcc/cp/cfns.gperf 96gcc/java/keyword.h: gcc/java/keyword.gperf 97# testsuite 98# Without this, _Pragma3.c can have a false negative. 99gcc/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 102gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c 103# lto-plugin 104lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4 105lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4 106# And libraries, at last 107libbanshee/configure: libbanshee/configure.ac 108libmudflap/configure: libmudflap/configure.ac 109libobjc/configure: libobjc/configure.ac 110zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4 111zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4 112zlib/configure: zlib/configure.ac zlib/aclocal.m4 113fastjar/aclocal.m4: fastjar/configure.ac 114fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4 115fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4 116boehm-gc/aclocal.m4: boehm-gc/configure.ac 117boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4 118boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4 119libada/configure: libada/configure.ac 120libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4 121libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4 122libffi/configure: libffi/configure.ac libffi/aclocal.m4 123libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4 124libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4 125libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4 126libquadmath/configure: libquadmath/configure.ac libquadmath/aclocal.m4 127libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4 128libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4 129libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4 130libjava/aclocal.m4: libjava/configure.ac 131libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4 132libjava/configure: libjava/configure.ac libjava/aclocal.m4 133libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4 134libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 135libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 136libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 137libcpp/aclocal.m4: libcpp/configure.ac 138libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4 139libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4 140libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4 141libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 142libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 143libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4 144libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4 145libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4 146libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4 147libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4 148libitm/configure: libitm/configure.ac libitm/aclocal.m4 149libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4 150libatomic/aclocal.m4: libatomic/configure.ac libatomic/acinclude.m4 151libatomic/Makefile.in: libatomic/Makefile.am libatomic/aclocal.m4 152libatomic/testsuite/Makefile.in: libatomic/testsuite/Makefile.am libatomic/aclocal.m4 153libatomic/configure: libatomic/configure.ac libatomic/aclocal.m4 154libatomic/auto-config.h.in: libatomic/configure.ac libatomic/aclocal.m4 155libsanitizer/aclocal.m4: libsanitizer/configure.ac libsanitizer/acinclude.m4 156libsanitizer/Makefile.in: libsanitizer/Makefile.am libsanitizer/aclocal.m4 157libsanitizer/configure: libsanitizer/configure.ac libsanitizer/aclocal.m4 158libsanitizer/asan/Makefile.in: libsanitizer/asan/Makefile.am libsanitizer/aclocal.m4 159libsanitizer/interception/Makefile.in: libsanitizer/interception/Makefile.am libsanitizer/aclocal.m4 160libsanitizer/sanitizer_common/Makefile.in: libsanitizer/sanitizer_common/Makefile.am libsanitizer/aclocal.m4 161# Top level 162Makefile.in: Makefile.tpl Makefile.def 163configure: configure.ac config/acx.m4 164EOF 165} 166 167 168# This function touches generated files such that the ``end'' user does 169# not have to rebuild them. 170touch_files () { 171 rm -f Makefile.$$ 172 echo 'all: \' > Makefile.$$ 173 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ 174 echo '; @true' >> Makefile.$$ 175 files_and_dependencies | sed 's, ,: ,' >> Makefile.$$ 176 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ 177 echo ':' >> Makefile.$$ 178 echo ' @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$ 179 echo ' echo Touching $@...; \' >> Makefile.$$ 180 chat ' echo Touching $@... 1>&2; \' >> Makefile.$$ 181 echo ' touch $@' >> Makefile.$$ 182 files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$ 183 184 # We would have to explicitly shut off the "Entering... Leaving..." 185 # messages through "--no-print-directory" to handle the case when 186 # we were called from a recursive invocation (i.e. "$(MAKE)" in a 187 # Makefile, not just make). Passing only "-s" doesn't help then, 188 # because make has helpfully added "-w" to MAKEFLAGS automatically. 189 # Unfortunately we do not require GNU make other than for building 190 # and testing, so let's just grep known text explicitly echoed by 191 # the rule. 192 while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do 193 sleep 1 194 done 2>&1 195 rm -f Makefile.$$ 196} 197 198 199# Whenever we update the tree or install a patch, we may be modifying 200# this script. By re-execing it, we ensure that the appropriate 201# dependencies and rules will be used. 202touch_files_reexec () { 203 chat "Adjusting file timestamps" 204 exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch 205} 206 207# This functions applies a patch to an existing tree. 208apply_patch () { 209 if [ -f "$1" ]; then 210 echo "Applying patch file $1" 211 case $1 in 212 *gz) 213 gzip -d -c "$1" | patch -p1 ;; 214 *bz2) 215 bzip2 -d -c "$1" | patch -p1 ;; 216 *) 217 patch -p1 < "$1";; 218 esac 219 fi 220 touch_files_reexec 221} 222 223# Check whether this indeed looks like a local tree. 224if [ ! -f gcc/version.c ]; then 225 echo "This does not seem to be a GCC tree!" 226 exit 227fi 228 229case "$1" in 230--silent) 231 silent=t 232 shift 233 ;; 234esac 235 236case "$1" in 237# First of all, check whether we are going to process a patch. 238--patch) 239 if test "$#" != 2; then 240 echo "$1" expects only one argument >&2 241 exit 1 242 fi 243 apply_patch "${2}" 244 exit $? 245 ;; 246 247--touch) 248 if test "$#" != 1; then 249 echo "$1" does not expect any argument >&2 250 exit 1 251 fi 252 touch_files 253 exit $? 254 ;; 255 256--list) 257 if test "$#" != 1; then 258 echo "$1" does not expect any argument >&2 259 exit 1 260 fi 261 files_and_dependencies | sed 's/ /: /' 262 exit $? 263 ;; 264 265--help) 266 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ 267\ 268 269p 270}' \ 271 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 272 exit $? 273 ;; 274 275esac 276 277# Check for known version control systems. 278if [ -d .git ]; then 279 GCC_GIT=${GCC_GIT-${GIT-git}} 280 vcs_type="git" 281elif [ -d .hg ]; then 282 GCC_HG=${GCC_HG-${HG-hg}} 283 vcs_type="hg" 284elif [ -d .svn ]; then 285 GCC_SVN=${GCC_SVN-${SVN-svn}} 286 vcs_type="svn" 287else 288 echo "This does not seem to be a GCC GIT/HG/SVN tree!" 289 exit 290fi 291 292# Check command-line options 293if [ x"${1}"x = x"--nostdflags"x ]; then 294 shift 295else 296 set -- $UPDATE_OPTIONS ${1+"$@"} 297fi 298 299case $vcs_type in 300 git) 301 chat "Updating GIT tree" 302 303 $GCC_GIT diff --quiet --exit-code HEAD 304 if [ $? -ne 0 ]; then 305 echo "Attempting to update a dirty git tree!" >&2 306 echo "Commit or stash your changes first and retry." >&2 307 exit 1 308 fi 309 310 $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"} 311 if [ $? -ne 0 ]; then 312 (touch_files_reexec) 313 echo "git pull of full tree failed." >&2 314 exit 1 315 fi 316 317 revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H` 318 branch=`$GCC_GIT name-rev --name-only HEAD || :` 319 ;; 320 321 hg) 322 chat "Updating HG tree" 323 324 # Add -q so untracked files aren't listed. 325 if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then 326 echo "Attempting to update a dirty hg tree!" >&2 327 echo "Commit or revert your changes first and retry." >&2 328 exit 1 329 fi 330 331 # Check for mq extension. mq patches must be popped so tip has 332 # been converted from the SVN tree. 333 if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then 334 # FIXME: Perhaps pop queue instead? We could do that since we 335 # know the tree is clean. 336 echo "Attempting to update hg tree with mq patches applied!" >&2 337 echo "Pop your patches first and retry." >&2 338 exit 1 339 fi 340 341 # Update tree, but make sure to only pull the default branch. 342 # Otherwise all branches in the upstream repo are added, even if 343 # only a single one has been cloned. 344 $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"} 345 if [ $? -ne 0 ]; then 346 (touch_files_reexec) 347 echo "hg pull of full tree failed." >&2 348 exit 1 349 fi 350 351 # Update tree. Needs to be done separately from pull so 352 # gcc_update -rREV works. 353 $GCC_HG update ${silent+-q} ${1+"$@"} 354 if [ $? -ne 0 ]; then 355 (touch_files_reexec) 356 echo "hg update of full tree failed." >&2 357 exit 1 358 fi 359 360 # Extract SVN revision corresponding to parents, as stored by 361 # hg convert. Before hg 1.4.3, there's no template keyword 362 # corresponding to the extra: tag, so need to use hg log --debug 363 # to extract the info. 364 parents=`$GCC_HG parents --template '{rev}'` 365 convert_revision=`$GCC_HG log --debug -r$parents | \ 366 sed -ne "/^extra:.*convert_revision=svn:/ { 367 s%^[^/]*/%% 368 p 369 }"` 370 revision=`echo $convert_revision | sed -e 's/.*@//'` 371 branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'` 372 ;; 373 374 svn) 375 chat "Updating SVN tree" 376 377 $GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"} 378 if [ $? -ne 0 ]; then 379 (touch_files_reexec) 380 echo "SVN update of full tree failed." >&2 381 exit 1 382 fi 383 384 revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'` 385 branch=`$GCC_SVN info | sed -ne "/^URL:/ { 386 s,.*/trunk,trunk, 387 s,.*/branches/,, 388 s,.*/tags/,, 389 p 390 }"` 391 ;; 392esac 393 394rm -f LAST_UPDATED gcc/REVISION 395{ 396 date 397 echo "`TZ=UTC date` (revision $revision)" 398} > LAST_UPDATED 399echo "[$branch revision $revision]" > gcc/REVISION 400 401touch_files_reexec 402