1#! /bin/sh 2# 3# Update a local Subversion tree from the GCC repository, with an emphasis 4# on treating generated files correctly, so that autoconf, gperf et 5# al are not required for the ``end'' user. 6# 7# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation 8# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998. 9# 10# This script is Free Software, and it can be copied, distributed and 11# modified as defined in the GNU General Public License. A copy of 12# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html 13# 14# 15# By default all command-line options are passed to `svn update` in 16# addition to $UPDATE_OPTIONS (defined below). If the first parameter 17# reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself 18# are omitted. 19# 20# If the first parameter reads --patch, the second parameter is considered 21# a patch file. 22# 23# If the first parameter is --touch, no svn operation will be performed, 24# only generated files that appear to be out of date in the local tree 25# will be touched. 26# 27# If the first parameter is --list, a list of the generated files and 28# their dependencies will be printed; --help prints this message. 29# 30# If the first parameter is --silent, this script prints nothing other 31# than error messages; the second parameter is then interpreted as above. 32# 33# Examples: 34# 35# contrib/gcc_update -r 8712 36# contrib/gcc_update --patch some-patch 37# contrib/gcc_update --touch 38# contrib/gcc_update --list 39 40 41# SVN command 42GCC_SVN=${GCC_SVN-${SVN-svn}} 43# Default options used when updating via SVN (none). 44UPDATE_OPTIONS="" 45 46######## Anything below shouldn't be changed by regular users. 47 48# Arrange for the value of $0 to be available for functions 49self=$0 50 51# This function prints its arguments to standard output unless 52# "silent" is set. 53unset silent 54chat () { 55 if [ -z "$silent" ]; then 56 echo "$@" 57 fi 58} 59 60# This function prints a list of all generated files, along with their 61# dependencies. Note that only one target is supported per line: the 62# colon is stripped from the output. 63files_and_dependencies () { 64 sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF 65# fixincludes 66fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4 67fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4 68# intl library 69intl/plural.c: intl/plural.y 70intl/configure: intl/configure.ac intl/aclocal.m4 71intl/config.h.in: intl/configure.ac intl/aclocal.m4 72# Now, proceed to gcc automatically generated files 73gcc/configure: gcc/configure.ac 74gcc/cstamp-h.in: gcc/configure.ac 75gcc/config.in: gcc/cstamp-h.in 76gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def 77gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh 78# And then, language-specific files 79gcc/cp/cfns.h: gcc/cp/cfns.gperf 80gcc/java/keyword.h: gcc/java/keyword.gperf 81# testsuite 82# Without this, _Pragma3.c can have a false negative. 83gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h 84# Similarly, without this, you will see: 85# direct2s.c:35: warning: current file is older than direct2.c 86gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c 87# lto-plugin 88lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4 89lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4 90# And libraries, at last 91libbanshee/configure: libbanshee/configure.ac 92libmudflap/configure: libmudflap/configure.ac 93libobjc/configure: libobjc/configure.ac 94zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4 95zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4 96zlib/configure: zlib/configure.ac zlib/aclocal.m4 97fastjar/aclocal.m4: fastjar/configure.ac 98fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4 99fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4 100boehm-gc/aclocal.m4: boehm-gc/configure.ac 101boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4 102boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4 103libada/configure: libada/configure.ac 104libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4 105libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4 106libffi/configure: libffi/configure.ac libffi/aclocal.m4 107libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4 108libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4 109libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4 110libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4 111libjava/aclocal.m4: libjava/configure.ac 112libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4 113libjava/configure: libjava/configure.ac libjava/aclocal.m4 114libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4 115libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 116libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 117libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 118libcpp/aclocal.m4: libcpp/configure.ac 119libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4 120libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4 121libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4 122libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 123libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 124libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4 125libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4 126# Top level 127Makefile.in: Makefile.tpl Makefile.def 128configure: configure.ac config/acx.m4 129EOF 130} 131 132 133# This function touches generated files such that the ``end'' user does 134# not have to rebuild them. 135touch_files () { 136 rm -f Makefile.$$ 137 echo 'all: \' > Makefile.$$ 138 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ 139 echo '; @true' >> Makefile.$$ 140 files_and_dependencies | sed 's, ,: ,' >> Makefile.$$ 141 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ 142 echo ':' >> Makefile.$$ 143 echo ' @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$ 144 echo ' echo Touching $@...; \' >> Makefile.$$ 145 chat ' echo Touching $@... 1>&2; \' >> Makefile.$$ 146 echo ' touch $@' >> Makefile.$$ 147 files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$ 148 149 # We would have to explicitly shut off the "Entering... Leaving..." 150 # messages through "--no-print-directory" to handle the case when 151 # we were called from a recursive invocation (i.e. "$(MAKE)" in a 152 # Makefile, not just make). Passing only "-s" doesn't help then, 153 # because make has helpfully added "-w" to MAKEFLAGS automatically. 154 # Unfortunately we do not require GNU make other than for building 155 # and testing, so let's just grep known text explicitly echoed by 156 # the rule. 157 while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do 158 sleep 1 159 done 2>&1 160 rm -f Makefile.$$ 161} 162 163 164# Whenever we update the tree or install a patch, we may be modifying 165# this script. By re-execing it, we ensure that the appropriate 166# dependencies and rules will be used. 167touch_files_reexec () { 168 chat "Adjusting file timestamps" 169 exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch 170} 171 172# This functions applies a patch to an existing tree. 173apply_patch () { 174 if [ -f "$1" ]; then 175 echo "Applying patch file $1" 176 case $1 in 177 *gz) 178 gzip -d -c "$1" | patch -p1 ;; 179 *bz2) 180 bzip2 -d -c "$1" | patch -p1 ;; 181 *) 182 patch -p1 < "$1";; 183 esac 184 fi 185 touch_files_reexec 186} 187 188# Check whether this indeed looks like a local tree. 189if [ ! -f gcc/version.c ]; then 190 echo "This does not seem to be a GCC tree!" 191 exit 192fi 193 194case "$1" in 195--silent) 196 silent=t 197 shift 198 ;; 199esac 200 201case "$1" in 202# First of all, check whether we are going to process a patch. 203--patch) 204 if test "$#" != 2; then 205 echo "$1" expects only one argument >&2 206 exit 1 207 fi 208 apply_patch "${2}" 209 exit $? 210 ;; 211 212--touch) 213 if test "$#" != 1; then 214 echo "$1" does not expect any argument >&2 215 exit 1 216 fi 217 touch_files 218 exit $? 219 ;; 220 221--list) 222 if test "$#" != 1; then 223 echo "$1" does not expect any argument >&2 224 exit 1 225 fi 226 files_and_dependencies | sed 's/ /: /' 227 exit $? 228 ;; 229 230--help) 231 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ 232\ 233 234p 235}' \ 236 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 237 exit $? 238 ;; 239 240esac 241 242# Check whether this indeed looks like a local SVN tree. 243if [ ! -d .svn ]; then 244 echo "This does not seem to be a GCC SVN tree!" 245 exit 246fi 247 248# Check command-line options 249if [ x"${1}"x = x"--nostdflags"x ]; then 250 shift 251else 252 set -- $UPDATE_OPTIONS ${1+"$@"} 253fi 254 255chat "Updating SVN tree" 256 257$GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"} 258if [ $? -ne 0 ]; then 259 (touch_files_reexec) 260 echo "SVN update of full tree failed." >&2 261 exit 1 262fi 263 264rm -f LAST_UPDATED gcc/REVISION 265 266revision=`svn info | awk '/Revision:/ { print $2 }'` 267branch=`svn info | sed -ne "/URL:/ { 268s,.*/trunk,trunk, 269s,.*/branches/,, 270s,.*/tags/,, 271p 272}"` 273{ 274 date 275 echo "`TZ=UTC date` (revision $revision)" 276} > LAST_UPDATED 277 278echo "[$branch revision $revision]" > gcc/REVISION 279 280touch_files_reexec 281