xref: /netbsd-src/external/gpl3/gcc.old/dist/contrib/gcc_update (revision 181254a7b1bdde6873432bffef2d2decc4b5c22f)
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25# only generated files that appear to be out of date in the local tree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/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
96# testsuite
97# Without this, _Pragma3.c can have a false negative.
98gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
99# Similarly, without this, you will see:
100# direct2s.c:35: warning: current file is older than direct2.c
101gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
102# lto-plugin
103lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
104lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
105# And libraries, at last
106libbanshee/configure: libbanshee/configure.ac
107libmudflap/configure: libmudflap/configure.ac
108libobjc/configure: libobjc/configure.ac
109zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
110zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
111zlib/configure: zlib/configure.ac zlib/aclocal.m4
112fastjar/aclocal.m4: fastjar/configure.ac
113fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
114fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
115boehm-gc/aclocal.m4: boehm-gc/configure.ac
116boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
117boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
118libada/configure: libada/configure.ac
119libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
120libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
121libffi/configure: libffi/configure.ac libffi/aclocal.m4
122libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
123libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
124libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
125libquadmath/configure: libquadmath/configure.ac libquadmath/aclocal.m4
126libquadmath/aclocal.m4: libquadmath/configure.ac libquadmath/acinclude.m4
127libquadmath/Makefile.in: libquadmath/Makefile.am libquadmath/configure.ac libgfortran/aclocal.m4
128libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
129libcpp/aclocal.m4: libcpp/configure.ac
130libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
131libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
132libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
133libgomp/Makefile.am: libgomp/plugin/Makefrag.am
134libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
135libgomp/testsuite/Makefile.in: libgomp/testsuite/Makefile.am libgomp/aclocal.m4
136libgomp/configure.ac: libgomp/plugin/configfrag.ac
137libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
138libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
139libhsail-rt/aclocal.m4: libhsail-rt/configure.ac
140libhsail-rt/Makefile.in: libhsail-rt/Makefile.am libhsail-rt/aclocal.m4
141libhsail-rt/configure: libhsail-rt/configure.ac libhsail-rt/aclocal.m4
142libhsail-rt/target-config.h.in: libhsail-rt/configure.ac libhsail-rt/aclocal.m4
143libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
144libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
145libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
146libitm/configure: libitm/configure.ac libitm/aclocal.m4
147libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
148libatomic/aclocal.m4: libatomic/configure.ac libatomic/acinclude.m4
149libatomic/Makefile.in: libatomic/Makefile.am libatomic/aclocal.m4
150libatomic/testsuite/Makefile.in: libatomic/testsuite/Makefile.am libatomic/aclocal.m4
151libatomic/configure: libatomic/configure.ac libatomic/aclocal.m4
152libatomic/auto-config.h.in: libatomic/configure.ac libatomic/aclocal.m4
153libsanitizer/aclocal.m4: libsanitizer/configure.ac libsanitizer/acinclude.m4
154libsanitizer/Makefile.in: libsanitizer/Makefile.am libsanitizer/aclocal.m4
155libsanitizer/configure: libsanitizer/configure.ac libsanitizer/aclocal.m4
156libsanitizer/asan/Makefile.in: libsanitizer/asan/Makefile.am libsanitizer/aclocal.m4
157libsanitizer/interception/Makefile.in: libsanitizer/interception/Makefile.am libsanitizer/aclocal.m4
158libsanitizer/sanitizer_common/Makefile.in: libsanitizer/sanitizer_common/Makefile.am libsanitizer/aclocal.m4
159libvtv/aclocal.m4: libvtv/configure.ac libvtv/acinclude.m4
160libvtv/Makefile.in: libvtv/Makefile.am libvtv/aclocal.m4
161libvtv/configure: libvtv/configure.ac libvtv/aclocal.m4
162liboffloadmic/aclocal.m4: liboffloadmic/configure.ac
163liboffloadmic/Makefile.in: liboffloadmic/Makefile.am
164liboffloadmic/configure: liboffloadmic/configure.ac
165liboffloadmic/plugin/aclocal.m4: liboffloadmic/plugin/configure.ac
166liboffloadmic/plugin/Makefile.in: liboffloadmic/plugin/Makefile.am
167liboffloadmic/plugin/configure: liboffloadmic/plugin/configure.ac
168libbacktrace/aclocal.m4: libbacktrace/configure.ac
169libbacktrace/Makefile.in: libbacktrace/Makefile.am libbacktrace/aclocal.m4
170libbacktrace/configure: libbacktrace/configure.ac libbacktrace/aclocal.m4
171libbacktrace/config.h.in: libbacktrace/configure.ac libbacktrace/aclocal.m4
172# Top level
173Makefile.in: Makefile.tpl Makefile.def
174configure: configure.ac config/acx.m4
175EOF
176}
177
178
179# This function touches generated files such that the ``end'' user does
180# not have to rebuild them.
181touch_files () {
182    rm -f Makefile.$$
183    echo 'all: \' > Makefile.$$
184    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
185    echo '; @true' >> Makefile.$$
186    files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
187    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
188    echo ':' >> Makefile.$$
189    echo '	@for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
190    echo '	echo Touching $@...; \' >> Makefile.$$
191    chat '	echo Touching $@... 1>&2; \' >> Makefile.$$
192    echo '	touch $@' >> Makefile.$$
193    files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
194
195    # We would have to explicitly shut off the "Entering... Leaving..."
196    # messages through "--no-print-directory" to handle the case when
197    # we were called from a recursive invocation (i.e. "$(MAKE)" in a
198    # Makefile, not just make).  Passing only "-s" doesn't help then,
199    # because make has helpfully added "-w" to MAKEFLAGS automatically.
200    # Unfortunately we do not require GNU make other than for building
201    # and testing, so let's just grep known text explicitly echoed by
202    # the rule.
203    while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
204      sleep 1
205    done 2>&1
206    rm -f Makefile.$$
207}
208
209
210# Whenever we update the tree or install a patch, we may be modifying
211# this script.  By re-execing it, we ensure that the appropriate
212# dependencies and rules will be used.
213touch_files_reexec () {
214    chat "Adjusting file timestamps"
215    exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
216}
217
218# This functions applies a patch to an existing tree.
219apply_patch () {
220    if [ -f "$1" ]; then
221	echo "Applying patch file $1"
222	case $1 in
223	*gz)
224	    gzip -d -c "$1" | patch -p1 ;;
225	*bz2)
226	    bzip2 -d -c "$1" | patch -p1 ;;
227	*)
228	    patch -p1 < "$1";;
229	esac
230    fi
231    touch_files_reexec
232}
233
234# Check whether this indeed looks like a local tree.
235if [ ! -f gcc/version.c ]; then
236    echo "This does not seem to be a GCC tree!"
237    exit
238fi
239
240case "$1" in
241--silent)
242    silent=t
243    shift
244    ;;
245esac
246
247case "$1" in
248# First of all, check whether we are going to process a patch.
249--patch)
250    if test "$#" != 2; then
251        echo "$1" expects only one argument >&2
252	exit 1
253    fi
254    apply_patch "${2}"
255    exit $?
256    ;;
257
258--touch)
259    if test "$#" != 1; then
260        echo "$1" does not expect any argument >&2
261	exit 1
262    fi
263    touch_files
264    exit $?
265    ;;
266
267--list)
268    if test "$#" != 1; then
269        echo "$1" does not expect any argument >&2
270	exit 1
271    fi
272    files_and_dependencies | sed 's/ /: /'
273    exit $?
274    ;;
275
276--help)
277    sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
278\
279
280p
281}' \
282	-e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
283    exit $?
284    ;;
285
286esac
287
288# Check for known version control systems.
289if [ -d .git ] || [ -f .git ]; then
290    GCC_GIT=${GCC_GIT-${GIT-git}}
291    vcs_type="git"
292elif [ -d .hg ]; then
293    GCC_HG=${GCC_HG-${HG-hg}}
294    vcs_type="hg"
295elif [ -d .svn ]; then
296    GCC_SVN=${GCC_SVN-${SVN-svn}}
297    vcs_type="svn"
298else
299    echo "This does not seem to be a GCC GIT/HG/SVN tree!"
300    exit
301fi
302
303# Check command-line options
304if [ x"${1}"x = x"--nostdflags"x ]; then
305    shift
306else
307    set -- $UPDATE_OPTIONS ${1+"$@"}
308fi
309
310case $vcs_type in
311    git)
312	chat "Updating GIT tree"
313
314	$GCC_GIT diff --quiet --exit-code HEAD
315	if [ $? -ne 0 ]; then
316            echo "Attempting to update a dirty git tree!" >&2
317            echo "Commit or stash your changes first and retry." >&2
318            exit 1
319	fi
320
321	$GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
322	if [ $? -ne 0 ]; then
323            (touch_files_reexec)
324            echo "git pull of full tree failed." >&2
325            exit 1
326	fi
327
328	revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
329	branch=`$GCC_GIT name-rev --name-only HEAD || :`
330	;;
331
332    hg)
333	chat "Updating HG tree"
334
335	# Add -q so untracked files aren't listed.
336	if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
337            echo "Attempting to update a dirty hg tree!" >&2
338            echo "Commit or revert your changes first and retry." >&2
339            exit 1
340	fi
341
342	# Check for mq extension.  mq patches must be popped so tip has
343	# been converted from the SVN tree.
344	if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
345	    # FIXME: Perhaps pop queue instead?  We could do that since we
346	    # know the tree is clean.
347	    echo "Attempting to update hg tree with mq patches applied!" >&2
348	    echo "Pop your patches first and retry." >&2
349	    exit 1
350	fi
351
352	# Update tree, but make sure to only pull the default branch.
353	# Otherwise all branches in the upstream repo are added, even if
354	# only a single one has been cloned.
355	$GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
356	if [ $? -ne 0 ]; then
357            (touch_files_reexec)
358            echo "hg pull of full tree failed." >&2
359            exit 1
360	fi
361
362	# Update tree.  Needs to be done separately from pull so
363	# gcc_update -rREV works.
364	$GCC_HG update ${silent+-q} ${1+"$@"}
365	if [ $? -ne 0 ]; then
366            (touch_files_reexec)
367            echo "hg update of full tree failed." >&2
368            exit 1
369	fi
370
371	# Extract SVN revision corresponding to parents, as stored by
372	# hg convert.  Before hg 1.4.3, there's no template keyword
373	# corresponding to the extra: tag, so need to use hg log --debug
374	# to extract the info.
375	parents=`$GCC_HG parents --template '{rev}'`
376	convert_revision=`$GCC_HG log --debug -r$parents | \
377	    sed -ne "/^extra:.*convert_revision=svn:/ {
378	        s%^[^/]*/%%
379		p
380	    }"`
381	revision=`echo $convert_revision | sed -e 's/.*@//'`
382	branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
383	;;
384
385    svn)
386	chat "Updating SVN tree"
387
388	$GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
389	if [ $? -ne 0 ]; then
390	    (touch_files_reexec)
391	    echo "SVN update of full tree failed." >&2
392	    exit 1
393	fi
394
395	revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'`
396	branch=`$GCC_SVN info | sed -ne "/^URL:/ {
397	    s,.*/trunk,trunk,
398	    s,.*/branches/,,
399	    s,.*/tags/,,
400	    p
401	}"`
402	;;
403esac
404
405rm -f LAST_UPDATED gcc/REVISION
406{
407    date
408    echo "`TZ=UTC date` (revision $revision)"
409} > LAST_UPDATED
410echo "[$branch revision $revision]" > gcc/REVISION
411
412touch_files_reexec
413