#! /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, 2011, 2012, 2013, 2014, 2015, 2017 Free Software Foundation
# Originally by Gerald Pfeifer <gerald@pfeifer.com>, 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# only generated files that appear to be out of date in the local tree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/aarch64/aarch64-tune.md: gcc/config/aarch64/aarch64-cores.def gcc/config/aarch64/gentune.sh
gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
gcc/config/arm/arm-tables.opt: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
gcc/config/arm/arm-cpu.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
gcc/config/arm/arm-cpu-data.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
gcc/config/arm/arm-cpu-cdata.h: gcc/config/arm/arm-cpus.in gcc/config/arm/parsecpu.awk
gcc/config/avr/avr-tables.opt: gcc/config/avr/avr-mcus.def gcc/config/avr/genopt.sh
gcc/config/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh
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
gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh
gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh
gcc/config/tilegx/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
# And then, language-specific files
gcc/cp/cfns.h: gcc/cp/cfns.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
libquadmath/configure: libquadmath/configure.ac libquadmath/aclocal.m4
libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4
libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4
libgfortran/configure: libgfortran/configure.ac libgfortran/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.am: libgomp/plugin/Makefrag.am
libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
libgomp/testsuite/Makefile.in: libgomp/testsuite/Makefile.am libgomp/aclocal.m4
libgomp/configure.ac: libgomp/plugin/configfrag.ac
libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
libhsail-rt/aclocal.m4: libhsail-rt/configure.ac
libhsail-rt/Makefile.in: libhsail-rt/Makefile.am libhsail-rt/aclocal.m4
libhsail-rt/configure: libhsail-rt/configure.ac libhsail-rt/aclocal.m4
libhsail-rt/target-config.h.in: libhsail-rt/configure.ac libhsail-rt/aclocal.m4
libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
libitm/configure: libitm/configure.ac libitm/aclocal.m4
libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
libatomic/aclocal.m4: libatomic/configure.ac libatomic/acinclude.m4
libatomic/Makefile.in: libatomic/Makefile.am libatomic/aclocal.m4
libatomic/testsuite/Makefile.in: libatomic/testsuite/Makefile.am libatomic/aclocal.m4
libatomic/configure: libatomic/configure.ac libatomic/aclocal.m4
libatomic/auto-config.h.in: libatomic/configure.ac libatomic/aclocal.m4
libsanitizer/aclocal.m4: libsanitizer/configure.ac libsanitizer/acinclude.m4
libsanitizer/Makefile.in: libsanitizer/Makefile.am libsanitizer/aclocal.m4
libsanitizer/configure: libsanitizer/configure.ac libsanitizer/aclocal.m4
libsanitizer/asan/Makefile.in: libsanitizer/asan/Makefile.am libsanitizer/aclocal.m4
libsanitizer/interception/Makefile.in: libsanitizer/interception/Makefile.am libsanitizer/aclocal.m4
libsanitizer/sanitizer_common/Makefile.in: libsanitizer/sanitizer_common/Makefile.am libsanitizer/aclocal.m4
libvtv/aclocal.m4: libvtv/configure.ac libvtv/acinclude.m4
libvtv/Makefile.in: libvtv/Makefile.am libvtv/aclocal.m4
libvtv/configure: libvtv/configure.ac libvtv/aclocal.m4
libcilkrts/aclocal.m4: libcilkrts/configure.ac
libcilkrts/Makefile.in: libcilkrts/Makefile.am
libcilkrts/configure: libcilkrts/configure.ac
liboffloadmic/aclocal.m4: liboffloadmic/configure.ac
liboffloadmic/Makefile.in: liboffloadmic/Makefile.am
liboffloadmic/configure: liboffloadmic/configure.ac
liboffloadmic/plugin/aclocal.m4: liboffloadmic/plugin/configure.ac
liboffloadmic/plugin/Makefile.in: liboffloadmic/plugin/Makefile.am
liboffloadmic/plugin/configure: liboffloadmic/plugin/configure.ac
libbacktrace/aclocal.m4: libbacktrace/configure.ac
libbacktrace/Makefile.in: libbacktrace/Makefile.am libbacktrace/aclocal.m4
libbacktrace/configure: libbacktrace/configure.ac libbacktrace/aclocal.m4
libbacktrace/config.h.in: libbacktrace/configure.ac libbacktrace/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}'`
convert_revision=`$GCC_HG log --debug -r$parents | \
sed -ne "/^extra:.*convert_revision=svn:/ {
s%^[^/]*/%%
p
}"`
revision=`echo $convert_revision | sed -e 's/.*@//'`
branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
;;
svn)
chat "Updating SVN tree"
$GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"}
if [ $? -ne 0 ]; then
(touch_files_reexec)
echo "SVN update of full tree failed." >&2
exit 1
fi
revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'`
branch=`$GCC_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