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Line No. Rev Author Line
1 723 jeremybenn
#! /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 , 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# only generated files that appear to be out of date in the local tree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).
43
UPDATE_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.
47
LANG=C
48
LC_ALL=C
49
export 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
54
self=$0
55
 
56
# This function prints its arguments to standard output unless
57
# "silent" is set.
58
unset silent
59
chat () {
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.
68
files_and_dependencies () {
69
    sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
70
# fixincludes
71
fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
72
fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
73
# intl library
74
intl/plural.c: intl/plural.y
75
intl/configure: intl/configure.ac intl/aclocal.m4
76
intl/config.h.in: intl/configure.ac intl/aclocal.m4
77
# Now, proceed to gcc automatically generated files
78
gcc/configure: gcc/configure.ac
79
gcc/cstamp-h.in: gcc/configure.ac
80
gcc/config.in: gcc/cstamp-h.in
81
gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
82
gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
83
gcc/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
84
gcc/config/avr/avr-tables.opt: gcc/config/avr/avr-mcus.def gcc/config/avr/genopt.sh
85
gcc/config/avr/t-multilib: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
86
gcc/config/avr/multilib.h: gcc/config/avr/avr-mcus.def gcc/config/avr/genmultilib.awk
87
gcc/config/c6x/c6x-tables.opt: gcc/config/c6x/c6x-isas.def gcc/config/c6x/genopt.sh
88
gcc/config/c6x/c6x-sched.md: gcc/config/c6x/c6x-sched.md.in gcc/config/c6x/gensched.sh
89
gcc/config/c6x/c6x-mult.md: gcc/config/c6x/c6x-mult.md.in gcc/config/c6x/genmult.sh
90
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
91
gcc/config/mips/mips-tables.opt: gcc/config/mips/mips-cpus.def gcc/config/mips/genopt.sh
92
gcc/config/rs6000/rs6000-tables.opt: gcc/config/rs6000/rs6000-cpus.def gcc/config/rs6000/genopt.sh
93
gcc/config/tilegx/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
94
gcc/config/tilepro/mul-tables.c: gcc/config/tilepro/gen-mul-tables.cc
95
# And then, language-specific files
96
gcc/cp/cfns.h: gcc/cp/cfns.gperf
97
gcc/java/keyword.h: gcc/java/keyword.gperf
98
# testsuite
99
# Without this, _Pragma3.c can have a false negative.
100
gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
101
# Similarly, without this, you will see:
102
# direct2s.c:35: warning: current file is older than direct2.c
103
gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
104
# lto-plugin
105
lto-plugin/configure: lto-plugin/configure.ac lto-plugin/aclocal.m4
106
lto-plugin/Makefile.in: lto-plugin/Makefile.am lto-plugin/aclocal.m4
107
# And libraries, at last
108
libbanshee/configure: libbanshee/configure.ac
109
libmudflap/configure: libmudflap/configure.ac
110
libobjc/configure: libobjc/configure.ac
111
zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
112
zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
113
zlib/configure: zlib/configure.ac zlib/aclocal.m4
114
fastjar/aclocal.m4: fastjar/configure.ac
115
fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
116
fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
117
boehm-gc/aclocal.m4: boehm-gc/configure.ac
118
boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
119
boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
120
libada/configure: libada/configure.ac
121
libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
122
libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
123
libffi/configure: libffi/configure.ac libffi/aclocal.m4
124
libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
125
libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
126
libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
127
libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
128
libjava/aclocal.m4: libjava/configure.ac
129
libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
130
libjava/configure: libjava/configure.ac libjava/aclocal.m4
131
libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
132
libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
133
libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
134
libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
135
libcpp/aclocal.m4: libcpp/configure.ac
136
libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
137
libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
138
libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
139
libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
140
libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
141
libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
142
libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
143
libitm/aclocal.m4: libitm/configure.ac libitm/acinclude.m4
144
libitm/Makefile.in: libitm/Makefile.am libitm/aclocal.m4
145
libitm/testsuite/Makefile.in: libitm/testsuite/Makefile.am libitm/aclocal.m4
146
libitm/configure: libitm/configure.ac libitm/aclocal.m4
147
libitm/config.h.in: libitm/configure.ac libitm/aclocal.m4
148
# Top level
149
Makefile.in: Makefile.tpl Makefile.def
150
configure: configure.ac config/acx.m4
151
EOF
152
}
153
 
154
 
155
# This function touches generated files such that the ``end'' user does
156
# not have to rebuild them.
157
touch_files () {
158
    rm -f Makefile.$$
159
    echo 'all: \' > Makefile.$$
160
    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
161
    echo '; @true' >> Makefile.$$
162
    files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
163
    files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
164
    echo ':' >> Makefile.$$
165
    echo '      @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
166
    echo '      echo Touching $@...; \' >> Makefile.$$
167
    chat '      echo Touching $@... 1>&2; \' >> Makefile.$$
168
    echo '      touch $@' >> Makefile.$$
169
    files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
170
 
171
    # We would have to explicitly shut off the "Entering... Leaving..."
172
    # messages through "--no-print-directory" to handle the case when
173
    # we were called from a recursive invocation (i.e. "$(MAKE)" in a
174
    # Makefile, not just make).  Passing only "-s" doesn't help then,
175
    # because make has helpfully added "-w" to MAKEFLAGS automatically.
176
    # Unfortunately we do not require GNU make other than for building
177
    # and testing, so let's just grep known text explicitly echoed by
178
    # the rule.
179
    while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
180
      sleep 1
181
    done 2>&1
182
    rm -f Makefile.$$
183
}
184
 
185
 
186
# Whenever we update the tree or install a patch, we may be modifying
187
# this script.  By re-execing it, we ensure that the appropriate
188
# dependencies and rules will be used.
189
touch_files_reexec () {
190
    chat "Adjusting file timestamps"
191
    exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
192
}
193
 
194
# This functions applies a patch to an existing tree.
195
apply_patch () {
196
    if [ -f "$1" ]; then
197
        echo "Applying patch file $1"
198
        case $1 in
199
        *gz)
200
            gzip -d -c "$1" | patch -p1 ;;
201
        *bz2)
202
            bzip2 -d -c "$1" | patch -p1 ;;
203
        *)
204
            patch -p1 < "$1";;
205
        esac
206
    fi
207
    touch_files_reexec
208
}
209
 
210
# Check whether this indeed looks like a local tree.
211
if [ ! -f gcc/version.c ]; then
212
    echo "This does not seem to be a GCC tree!"
213
    exit
214
fi
215
 
216
case "$1" in
217
--silent)
218
    silent=t
219
    shift
220
    ;;
221
esac
222
 
223
case "$1" in
224
# First of all, check whether we are going to process a patch.
225
--patch)
226
    if test "$#" != 2; then
227
        echo "$1" expects only one argument >&2
228
        exit 1
229
    fi
230
    apply_patch "${2}"
231
    exit $?
232
    ;;
233
 
234
--touch)
235
    if test "$#" != 1; then
236
        echo "$1" does not expect any argument >&2
237
        exit 1
238
    fi
239
    touch_files
240
    exit $?
241
    ;;
242
 
243
--list)
244
    if test "$#" != 1; then
245
        echo "$1" does not expect any argument >&2
246
        exit 1
247
    fi
248
    files_and_dependencies | sed 's/ /: /'
249
    exit $?
250
    ;;
251
 
252
--help)
253
    sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
254
\
255
 
256
p
257
}' \
258
        -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
259
    exit $?
260
    ;;
261
 
262
esac
263
 
264
# Check for known version control systems.
265
if [ -d .git ]; then
266
    GCC_GIT=${GCC_GIT-${GIT-git}}
267
    vcs_type="git"
268
elif [ -d .hg ]; then
269
    GCC_HG=${GCC_HG-${HG-hg}}
270
    vcs_type="hg"
271
elif [ -d .svn ]; then
272
    GCC_SVN=${GCC_SVN-${SVN-svn}}
273
    vcs_type="svn"
274
else
275
    echo "This does not seem to be a GCC GIT/HG/SVN tree!"
276
    exit
277
fi
278
 
279
# Check command-line options
280
if [ x"${1}"x = x"--nostdflags"x ]; then
281
    shift
282
else
283
    set -- $UPDATE_OPTIONS ${1+"$@"}
284
fi
285
 
286
case $vcs_type in
287
    git)
288
        chat "Updating GIT tree"
289
 
290
        $GCC_GIT diff --quiet --exit-code HEAD
291
        if [ $? -ne 0 ]; then
292
            echo "Attempting to update a dirty git tree!" >&2
293
            echo "Commit or stash your changes first and retry." >&2
294
            exit 1
295
        fi
296
 
297
        $GCC_GIT pull ${silent+-q} --rebase ${1+"$@"}
298
        if [ $? -ne 0 ]; then
299
            (touch_files_reexec)
300
            echo "git pull of full tree failed." >&2
301
            exit 1
302
        fi
303
 
304
        revision=`$GCC_GIT log -n1 --pretty=%p:%t:%H`
305
        branch=`$GCC_GIT name-rev --name-only HEAD || :`
306
        ;;
307
 
308
    hg)
309
        chat "Updating HG tree"
310
 
311
        # Add -q so untracked files aren't listed.
312
        if [ `$GCC_HG status -q | wc -l` -gt 0 ]; then
313
            echo "Attempting to update a dirty hg tree!" >&2
314
            echo "Commit or revert your changes first and retry." >&2
315
            exit 1
316
        fi
317
 
318
        # Check for mq extension.  mq patches must be popped so tip has
319
        # been converted from the SVN tree.
320
        if [ -d .hg/patches ] && [ `$GCC_HG qapplied | wc -l` -gt 0 ]; then
321
            # FIXME: Perhaps pop queue instead?  We could do that since we
322
            # know the tree is clean.
323
            echo "Attempting to update hg tree with mq patches applied!" >&2
324
            echo "Pop your patches first and retry." >&2
325
            exit 1
326
        fi
327
 
328
        # Update tree, but make sure to only pull the default branch.
329
        # Otherwise all branches in the upstream repo are added, even if
330
        # only a single one has been cloned.
331
        $GCC_HG pull ${silent+-q} -r`$GCC_HG branch` ${1+"$@"}
332
        if [ $? -ne 0 ]; then
333
            (touch_files_reexec)
334
            echo "hg pull of full tree failed." >&2
335
            exit 1
336
        fi
337
 
338
        # Update tree.  Needs to be done separately from pull so
339
        # gcc_update -rREV works.
340
        $GCC_HG update ${silent+-q} ${1+"$@"}
341
        if [ $? -ne 0 ]; then
342
            (touch_files_reexec)
343
            echo "hg update of full tree failed." >&2
344
            exit 1
345
        fi
346
 
347
        # Extract SVN revision corresponding to parents, as stored by
348
        # hg convert.  Before hg 1.4.3, there's no template keyword
349
        # corresponding to the extra: tag, so need to use hg log --debug
350
        # to extract the info.
351
        parents=`$GCC_HG parents --template '{rev}'`
352
        convert_revision=`$GCC_HG log --debug -r$parents | \
353
            sed -ne "/^extra:.*convert_revision=svn:/ {
354
                s%^[^/]*/%%
355
                p
356
            }"`
357
        revision=`echo $convert_revision | sed -e 's/.*@//'`
358
        branch=`echo $convert_revision | sed -e 's%branches/%%' -e 's/@.*//'`
359
        ;;
360
 
361
    svn)
362
        chat "Updating SVN tree"
363
 
364
        $GCC_SVN ${silent+-q}  --non-interactive update ${1+"$@"}
365
        if [ $? -ne 0 ]; then
366
            (touch_files_reexec)
367
            echo "SVN update of full tree failed." >&2
368
            exit 1
369
        fi
370
 
371
        revision=`svn info | awk '/Revision:/ { print $2 }'`
372
        branch=`svn info | sed -ne "/URL:/ {
373
            s,.*/trunk,trunk,
374
            s,.*/branches/,,
375
            s,.*/tags/,,
376
            p
377
        }"`
378
        ;;
379
esac
380
 
381
rm -f LAST_UPDATED gcc/REVISION
382
{
383
    date
384
    echo "`TZ=UTC date` (revision $revision)"
385
} > LAST_UPDATED
386
echo "[$branch revision $revision]" > gcc/REVISION
387
 
388
touch_files_reexec

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