diff options
Diffstat (limited to 'contrib/gcc_update')
| -rwxr-xr-x | contrib/gcc_update | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/contrib/gcc_update b/contrib/gcc_update new file mode 100755 index 000000000..b989ffdc5 --- /dev/null +++ b/contrib/gcc_update @@ -0,0 +1,372 @@ +#! /bin/sh +# +# Update a local Subversion, Git or Mercurial tree from the GCC +# repository, with an emphasis on treating generated files correctly, so +# that autoconf, gperf et al are not required for the ``end'' user. +# +# (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010 +# Free Software Foundation +# Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998. +# +# This script is Free Software, and it can be copied, distributed and +# modified as defined in the GNU General Public License. A copy of +# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html +# +# +# By default all command-line options are passed to `svn update` or `hg/git +# pull` in addition to $UPDATE_OPTIONS (defined below). If the first parameter +# reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself +# are omitted. +# +# If the first parameter reads --patch, the second parameter is considered +# a patch file. +# +# If the first parameter is --touch, no svn operation will be performed, +# only generated files that appear to be out of date in the local tree +# will be touched. +# +# If the first parameter is --list, a list of the generated files and +# their dependencies will be printed; --help prints this message. +# +# If the first parameter is --silent, this script prints nothing other +# than error messages; the second parameter is then interpreted as above. +# +# Examples: +# +# contrib/gcc_update -r 8712 +# contrib/gcc_update --patch some-patch +# contrib/gcc_update --touch +# contrib/gcc_update --list + + +# Default options used when updating (none). +UPDATE_OPTIONS="" + +# Set the locale to C to make this script work for users with foreign +# locale like e.g. French UTF-8. +LANG=C +LC_ALL=C +export LANG LC_ALL + +######## Anything below shouldn't be changed by regular users. + +# Arrange for the value of $0 to be available for functions +self=$0 + +# This function prints its arguments to standard output unless +# "silent" is set. +unset silent +chat () { + if [ -z "$silent" ]; then + echo "$@" + fi +} + +# This function prints a list of all generated files, along with their +# dependencies. Note that only one target is supported per line: the +# colon is stripped from the output. +files_and_dependencies () { + sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF +# fixincludes +fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4 +fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4 +# intl library +intl/plural.c: intl/plural.y +intl/configure: intl/configure.ac intl/aclocal.m4 +intl/config.h.in: intl/configure.ac intl/aclocal.m4 +# Now, proceed to gcc automatically generated files +gcc/configure: gcc/configure.ac +gcc/cstamp-h.in: gcc/configure.ac +gcc/config.in: gcc/cstamp-h.in +gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def +gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh +# And then, language-specific files +gcc/cp/cfns.h: gcc/cp/cfns.gperf +gcc/java/keyword.h: gcc/java/keyword.gperf +# testsuite +# Without this, _Pragma3.c can have a false negative. +gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h +# Similarly, without this, you will see: +# direct2s.c:35: warning: current file is older than direct2.c +gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c +# lto-plugin +lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4 +lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4 +# And libraries, at last +libbanshee/configure: libbanshee/configure.ac +libmudflap/configure: libmudflap/configure.ac +libobjc/configure: libobjc/configure.ac +zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4 +zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4 +zlib/configure: zlib/configure.ac zlib/aclocal.m4 +fastjar/aclocal.m4: fastjar/configure.ac +fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4 +fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4 +boehm-gc/aclocal.m4: boehm-gc/configure.ac +boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4 +boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4 +libada/configure: libada/configure.ac +libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4 +libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4 +libffi/configure: libffi/configure.ac libffi/aclocal.m4 +libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4 +libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4 +libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4 +libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4 +libjava/aclocal.m4: libjava/configure.ac +libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4 +libjava/configure: libjava/configure.ac libjava/aclocal.m4 +libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4 +libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 +libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 +libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4 +libcpp/aclocal.m4: libcpp/configure.ac +libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4 +libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4 +libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4 +libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 +libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4 +libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4 +libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4 +# Top level +Makefile.in: Makefile.tpl Makefile.def +configure: configure.ac config/acx.m4 +EOF +} + + +# This function touches generated files such that the ``end'' user does +# not have to rebuild them. +touch_files () { + rm -f Makefile.$$ + echo 'all: \' > Makefile.$$ + files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ + echo '; @true' >> Makefile.$$ + files_and_dependencies | sed 's, ,: ,' >> Makefile.$$ + files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$ + echo ':' >> Makefile.$$ + echo ' @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$ + echo ' echo Touching $@...; \' >> Makefile.$$ + chat ' echo Touching $@... 1>&2; \' >> Makefile.$$ + echo ' touch $@' >> Makefile.$$ + files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$ + + # We would have to explicitly shut off the "Entering... Leaving..." + # messages through "--no-print-directory" to handle the case when + # we were called from a recursive invocation (i.e. "$(MAKE)" in a + # Makefile, not just make). Passing only "-s" doesn't help then, + # because make has helpfully added "-w" to MAKEFLAGS automatically. + # Unfortunately we do not require GNU make other than for building + # and testing, so let's just grep known text explicitly echoed by + # the rule. + while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do + sleep 1 + done 2>&1 + rm -f Makefile.$$ +} + + +# Whenever we update the tree or install a patch, we may be modifying +# this script. By re-execing it, we ensure that the appropriate +# dependencies and rules will be used. +touch_files_reexec () { + chat "Adjusting file timestamps" + exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch +} + +# This functions applies a patch to an existing tree. +apply_patch () { + if [ -f "$1" ]; then + echo "Applying patch file $1" + case $1 in + *gz) + gzip -d -c "$1" | patch -p1 ;; + *bz2) + bzip2 -d -c "$1" | patch -p1 ;; + *) + patch -p1 < "$1";; + esac + fi + touch_files_reexec +} + +# Check whether this indeed looks like a local tree. +if [ ! -f gcc/version.c ]; then + echo "This does not seem to be a GCC tree!" + exit +fi + +case "$1" in +--silent) + silent=t + shift + ;; +esac + +case "$1" in +# First of all, check whether we are going to process a patch. +--patch) + if test "$#" != 2; then + echo "$1" expects only one argument >&2 + exit 1 + fi + apply_patch "${2}" + exit $? + ;; + +--touch) + if test "$#" != 1; then + echo "$1" does not expect any argument >&2 + exit 1 + fi + touch_files + exit $? + ;; + +--list) + if test "$#" != 1; then + echo "$1" does not expect any argument >&2 + exit 1 + fi + files_and_dependencies | sed 's/ /: /' + exit $? + ;; + +--help) + sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\ +\ + +p +}' \ + -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0 + exit $? + ;; + +esac + +# Check for known version control systems. +if [ -d .git ]; then + GCC_GIT=${GCC_GIT-${GIT-git}} + vcs_type="git" +elif [ -d .hg ]; then + GCC_HG=${GCC_HG-${HG-hg}} + vcs_type="hg" +elif [ -d .svn ]; then + GCC_SVN=${GCC_SVN-${SVN-svn}} + vcs_type="svn" +else + echo "This does not seem to be a GCC GIT/HG/SVN tree!" + exit +fi + +# Check command-line options +if [ x"${1}"x = x"--nostdflags"x ]; then + shift +else + set -- $UPDATE_OPTIONS ${1+"$@"} +fi + +case $vcs_type in + git) + chat "Updating GIT tree" + + $GCC_GIT diff --quiet --exit-code HEAD + if [ $? -ne 0 ]; then + echo "Attempting to update a dirty git tree!" >&2 + echo "Commit or stash your changes first and retry." >&2 + exit 1 + fi + + $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"} + if [ $? -ne 0 ]; then + (touch_files_reexec) + echo "git pull of full tree failed." >&2 + exit 1 + fi + + revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H` + branch=`$GCC_GIT name-rev --name-only HEAD || :` + ;; + + hg) + chat "Updating HG tree" + + # Add -q so untracked files aren't listed. + if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then + echo "Attempting to update a dirty hg tree!" >&2 + echo "Commit or revert your changes first and retry." >&2 + exit 1 + fi + + # Check for mq extension. mq patches must be popped so tip has + # been converted from the SVN tree. + if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then + # FIXME: Perhaps pop queue instead? We could do that since we + # know the tree is clean. + echo "Attempting to update hg tree with mq patches applied!" >&2 + echo "Pop your patches first and retry." >&2 + exit 1 + fi + + # Update tree, but make sure to only pull the default branch. + # Otherwise all branches in the upstream repo are added, even if + # only a single one has been cloned. + $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"} + if [ $? -ne 0 ]; then + (touch_files_reexec) + echo "hg pull of full tree failed." >&2 + exit 1 + fi + + # Update tree. Needs to be done separately from pull so + # gcc_update -rREV works. + $GCC_HG update ${silent+-q} ${1+"$@"} + if [ $? -ne 0 ]; then + (touch_files_reexec) + echo "hg update of full tree failed." >&2 + exit 1 + fi + + # Extract SVN revision corresponding to parents, as stored by + # hg convert. Before hg 1.4.3, there's no template keyword + # corresponding to the extra: tag, so need to use hg log --debug + # to extract the info. + parents=`$GCC_HG parents --template '{rev}'` + revision=`$GCC_HG log --debug -r$parents | \ + sed -ne "/^extra:.*convert_revision=svn:/ { + s%^.*@%% + p + }"` + branch=`$GCC_HG branch` + # trunk in SVN parlance shows up as default branch in hg. + [ x$branch = x"default" ] && branch="trunk" + ;; + + svn) + chat "Updating SVN tree" + + $GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"} + if [ $? -ne 0 ]; then + (touch_files_reexec) + echo "SVN update of full tree failed." >&2 + exit 1 + fi + + revision=`svn info | awk '/Revision:/ { print $2 }'` + branch=`svn info | sed -ne "/URL:/ { + s,.*/trunk,trunk, + s,.*/branches/,, + s,.*/tags/,, + p + }"` + ;; +esac + +rm -f LAST_UPDATED gcc/REVISION +{ + date + echo "`TZ=UTC date` (revision $revision)" +} > LAST_UPDATED +echo "[$branch revision $revision]" > gcc/REVISION + +touch_files_reexec |