2 ##--------------------------------------------------------------------##
3 ##--- Valgrind regression testing script vg_regtest ---##
4 ##--------------------------------------------------------------------##
6 # This file is part of Valgrind, a dynamic binary instrumentation
9 # Copyright (C) 2003-2013 Nicholas Nethercote
12 # This program is free software; you can redistribute it and/or
13 # modify it under the terms of the GNU General Public License as
14 # published by the Free Software Foundation; either version 2 of the
15 # License, or (at your option) any later version.
17 # This program is distributed in the hope that it will be useful, but
18 # WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 # General Public License for more details.
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
27 # The GNU General Public License is contained in the file COPYING.
29 #----------------------------------------------------------------------------
30 # usage: vg_regtest [options] <dirs | files>
33 # --all: run tests in all subdirs
34 # --valgrind: valgrind launcher to use. Default is ./coregrind/valgrind.
35 # (This option should probably only be used in conjunction with
37 # --valgrind-lib: valgrind libraries to use. Default is $tests_dir/.in_place.
38 # (This option should probably only be used in conjunction with
40 # --keep-unfiltered: keep a copy of the unfiltered output/error output
41 # of each test by adding an extension .unfiltered.out
43 # --outer-valgrind: run this valgrind under the given outer valgrind.
44 # This valgrind must be configured with --enable-inner.
45 # --outer-tool: tool to use by the outer valgrind (default memcheck).
46 # --outer-args: use this as outer tool args.
47 # --loop-till-fail: loops on the test(s) till one fail, then exit
48 # This is useful to obtain detailed trace or --keep-unfiltered
49 # output of a non deterministic test failure
51 # The easiest way is to run all tests in valgrind/ with (assuming you installed
54 # $PREFIX/bin/vg_regtest --all
56 # You can specify individual files to test, or whole directories, or both.
57 # Directories are traversed recursively, except for ones named, for example,
60 # Each test is defined in a file <test>.vgtest, containing one or more of the
61 # following lines, in any order:
62 # - prog: <prog to run>
63 # - prog-asis: <prog to run>
64 # - env: <environment variable for prog> (default: none)
65 # - args: <args for prog> (default: none)
66 # - vgopts: <Valgrind options> (default: none;
67 # multiple are allowed)
68 # - stdout_filter: <filter to run stdout through> (default: none)
69 # - stderr_filter: <filter to run stderr through> (default: ./filter_stderr)
70 # - stdout_filter_args: <args for stdout_filter> (default: basename of .vgtest file)
71 # - stderr_filter_args: <args for stderr_filter> (default: basename of .vgtest file)
73 # - progB: <prog to run in parallel with prog> (default: none)
74 # - argsB: <args for progB> (default: none)
75 # - stdinB: <input file for progB> (default: none)
76 # - stdoutB_filter: <filter progB stdout through> (default: none)
77 # - stderrB_filter: <filter progB stderr through> (default: ./filter_stderr)
78 # - stdoutB_filter_args: <args for stdout_filterB> (default: basename of .vgtest file)
79 # - stderrB_filter_args: <args for stderr_filterB> (default: basename of .vgtest file)
81 # - prereq: <prerequisite command> (default: none)
82 # - post: <post-test check command> (default: none)
83 # - cleanup: <post-test cleanup cmd> (default: none)
85 # One of prog or prog-asis must be specified.
86 # If prog or probB is a relative path, it will be prefix with the test directory.
87 # prog-asis will be taken as is, i.e. not prefixed with the test directory.
88 # Note that filters are necessary for stderr results to filter out things that
89 # always change, eg. process id numbers.
90 # Note that if a progB is specified, it is started in background (before prog).
92 # There can be more than one env: declaration. Here is an example:
93 # env: PATH=/opt/bin:$PATH
95 # Expected stdout (filtered) is kept in <test>.stdout.exp* (can be more
96 # than one expected output). It can be missing if it would be empty. Expected
97 # stderr (filtered) is kept in <test>.stderr.exp*. There must be at least
98 # one stderr.exp* file. Any .exp* file that ends in '~' or '#' is ignored;
99 # this is because Emacs creates temporary files of these names.
101 # Expected output for progB is handled similarly, except that
102 # expected stdout and stderr for progB are in <test>.stdoutB.exp*
103 # and <test>.stderrB.exp*.
105 # If results don't match, the output can be found in <test>.std<strm>.out,
106 # and the diff between expected and actual in <test>.std<strm>.diff*.
107 # (for progB, in <test>.std<strm>2.out and <test>.std<strm>2.diff*).
109 # The prerequisite command, if present, works like this:
110 # - if it returns 0 the test is run
111 # - if it returns 1 the test is skipped
112 # - if it returns anything else the script aborts.
113 # The idea here is results other than 0 or 1 are likely to be due to
114 # problems with the commands, and you don't want to conflate them with the 1
115 # case, which would happen if you just tested for zero or non-zero.
117 # The post-test command, if present, must return 0 and its stdout must match
118 # the expected stdout which is kept in <test>.post.exp*.
120 # Sometimes it is useful to run all the tests at a high sanity check
121 # level or with arbitrary other flags. To make this simple, extra
122 # options, applied to all tests run, are read from $EXTRA_REGTEST_OPTS,
123 # and handed to valgrind prior to any other flags specified by the
126 # Some more notes on adding regression tests for a new tool are in
127 # docs/xml/manual-writing-tools.xml.
128 #----------------------------------------------------------------------------
133 #----------------------------------------------------------------------------
135 #----------------------------------------------------------------------------
138 . " vg_regtest [--all, --valgrind, --valgrind-lib, --keep-unfiltered\n"
139 . " --outer-valgrind, --outer-tool, --outer-args\n"
140 . " --loop-till-fail]\n"
141 . " Use EXTRA_REGTEST_OPTS to supply extra args for all tests\n"
144 my $tmp="vg_regtest.tmp.$$";
147 my $vgopts; # valgrind options
148 my $prog; # test prog
149 my $args; # test prog args
150 my $stdout_filter; # filter program to run stdout results file through
151 my $stderr_filter; # filter program to run stderr results file through
152 my $stdout_filter_args; # arguments passed to stdout_filter
153 my $stderr_filter_args; # arguments passed to stderr_filter
154 my $progB; # Same but for progB
156 my $stdoutB_filter; #
157 my $stderrB_filter; #
158 my $stdoutB_filter_args;# arguments passed to stdout_filterB
159 my $stderrB_filter_args;# arguments passed to stderr_filterB
160 my $stdinB; # Input file for progB
161 my $prereq; # prerequisite test to satisfy before running test
162 my $post; # check command after running test
163 my $cleanup; # cleanup command to run
164 my @env = (); # environment variable to set prior calling $prog
166 my @failures; # List of failed tests
168 my $num_tests_done = 0;
169 my %num_failures = (stderr => 0, stdout => 0,
170 stderrB => 0, stdoutB => 0,
173 # Default valgrind to use is this build tree's (uninstalled) one
174 my $valgrind = "./coregrind/valgrind";
176 chomp(my $tests_dir = `pwd`);
178 # Outer valgrind to use, and args to use for it.
180 my $outer_tool = "memcheck";
183 my $valgrind_lib = "$tests_dir/.in_place";
184 my $keepunfiltered = 0;
185 my $looptillfail = 0;
187 # default filter is the one named "filter_stderr" in the test's directory
188 my $default_stderr_filter = "filter_stderr";
191 #----------------------------------------------------------------------------
192 # Process command line, setup
193 #----------------------------------------------------------------------------
195 # If $prog is a relative path, it prepends $dir to it. Useful for two reasons:
197 # 1. Can prepend "." onto programs to avoid trouble with users who don't have
198 # "." in their path (by making $dir = ".")
199 # 2. Can prepend the current dir to make the command absolute to avoid
200 # subsequent trouble when we change directories.
202 # Also checks the program exists and is executable.
203 sub validate_program ($$$$)
205 my ($dir, $prog, $must_exist, $must_be_executable) = @_;
207 # If absolute path, leave it alone. If relative, make it
208 # absolute -- by prepending current dir -- so we can change
209 # dirs and still use it.
210 $prog = "$dir/$prog" if ($prog !~ /^\//);
212 (-f $prog) or die "vg_regtest: `$prog' not found or not a file ($dir)\n";
214 if ($must_be_executable) {
215 (-x $prog) or die "vg_regtest: `$prog' not executable ($dir)\n";
221 sub process_command_line()
226 for my $arg (@ARGV) {
228 if ($arg =~ /^--all$/) {
230 } elsif ($arg =~ /^--valgrind=(.*)$/) {
232 } elsif ($arg =~ /^--outer-valgrind=(.*)$/) {
233 $outer_valgrind = $1;
234 } elsif ($arg =~ /^--outer-tool=(.*)$/) {
236 } elsif ($arg =~ /^--outer-args=(.*)$/) {
238 } elsif ($arg =~ /^--valgrind-lib=(.*)$/) {
240 } elsif ($arg =~ /^--keep-unfiltered$/) {
242 } elsif ($arg =~ /^--loop-till-fail$/) {
251 $valgrind = validate_program($tests_dir, $valgrind, 1, 0);
253 if (defined $outer_valgrind) {
254 $outer_valgrind = validate_program($tests_dir, $outer_valgrind, 1, 1);
255 if (not defined $outer_args) {
257 " --command-line-only=yes"
258 . " --run-libc-freeres=no --sim-hints=enable-outer"
259 . " --smc-check=all-non-file"
260 . " --vgdb=no --trace-children=yes --read-var-info=no"
261 . " --read-inline-info=yes"
263 . validate_program($tests_dir,"./tests/outer_inner.supp",1,0)
264 . " --memcheck:leak-check=full --memcheck:show-reachable=no"
271 foreach my $f (glob "*") {
272 push(@fs, $f) if (-d $f);
276 (0 != @fs) or die "No test files or directories specified\n";
281 #----------------------------------------------------------------------------
282 # Read a .vgtest file
283 #----------------------------------------------------------------------------
284 sub read_vgtest_file($)
289 ($vgopts, $prog, $args) = ("", undef, "");
290 ($stdout_filter, $stderr_filter) = (undef, undef);
291 ($progB, $argsB, $stdinB) = (undef, "", undef);
292 ($stdoutB_filter, $stderrB_filter) = (undef, undef);
293 ($prereq, $post, $cleanup) = (undef, undef, undef);
294 ($stdout_filter_args, $stderr_filter_args) = (undef, undef);
295 ($stdoutB_filter_args, $stderrB_filter_args) = (undef, undef);
297 # Every test directory must have a "filter_stderr"
298 $stderr_filter = validate_program(".", $default_stderr_filter, 1, 1);
299 $stderrB_filter = validate_program(".", $default_stderr_filter, 1, 1);
302 open(INPUTFILE, "< $f") || die "File $f not openable\n";
304 while (my $line = <INPUTFILE>) {
305 if ($line =~ /^\s*#/ || $line =~ /^\s*$/) {
307 } elsif ($line =~ /^\s*vgopts:\s*(.*)$/) {
309 $addvgopts =~ s/\${PWD}/$ENV{PWD}/g;
310 $vgopts = $vgopts . " " . $addvgopts; # Nb: Make sure there's a space!
311 } elsif ($line =~ /^\s*prog:\s*(.*)$/) {
312 $prog = validate_program(".", $1, 0, 0);
313 } elsif ($line =~ /^\s*prog-asis:\s*(.*)$/) {
315 } elsif ($line =~ /^\s*args:\s*(.*)$/) {
317 } elsif ($line =~ /^\s*stdout_filter:\s*(.*)$/) {
318 $stdout_filter = validate_program(".", $1, 1, 1);
319 } elsif ($line =~ /^\s*stderr_filter:\s*(.*)$/) {
320 $stderr_filter = validate_program(".", $1, 1, 1);
321 } elsif ($line =~ /^\s*stdout_filter_args:\s*(.*)$/) {
322 $stdout_filter_args = $1;
323 } elsif ($line =~ /^\s*stderr_filter_args:\s*(.*)$/) {
324 $stderr_filter_args = $1;
325 } elsif ($line =~ /^\s*progB:\s*(.*)$/) {
326 $progB = validate_program(".", $1, 0, 0);
327 } elsif ($line =~ /^\s*argsB:\s*(.*)$/) {
329 } elsif ($line =~ /^\s*stdinB:\s*(.*)$/) {
331 } elsif ($line =~ /^\s*stdoutB_filter:\s*(.*)$/) {
332 $stdoutB_filter = validate_program(".", $1, 1, 1);
333 } elsif ($line =~ /^\s*stderrB_filter:\s*(.*)$/) {
334 $stderrB_filter = validate_program(".", $1, 1, 1);
335 } elsif ($line =~ /^\s*stdoutB_filter_args:\s*(.*)$/) {
336 $stdoutB_filter_args = $1;
337 } elsif ($line =~ /^\s*stderrB_filter_args:\s*(.*)$/) {
338 $stderrB_filter_args = $1;
339 } elsif ($line =~ /^\s*prereq:\s*(.*)$/) {
341 } elsif ($line =~ /^\s*post:\s*(.*)$/) {
343 } elsif ($line =~ /^\s*cleanup:\s*(.*)$/) {
345 } elsif ($line =~ /^\s*env:\s*(.*)$/) {
348 die "Bad line in $f: $line\n";
353 if (!defined $prog) {
354 $prog = ""; # allow no prog for testing error and --help cases
358 #----------------------------------------------------------------------------
360 #----------------------------------------------------------------------------
361 # Since most of the program time is spent in system() calls, need this to
362 # propagate a Ctrl-C enabling us to quit.
365 my $exit_code = system($_[0]);
366 ($exit_code == 2) and exit 1; # 2 is SIGINT
370 # if $keepunfiltered, copies $1 to $1.unfiltered.out
372 sub filtered_rename($$)
374 if ($keepunfiltered == 1) {
375 mysystem("cp $_[1] $_[1].unfiltered.out");
377 rename ($_[0], $_[1]);
381 # from a directory name like "/foo/cachesim/tests/" determine the tool name
385 $dir =~ /.*\/([^\/]+)\/tests.*/; # foo/tool_name/tests/foo
389 # Compare output against expected output; it should match at least one of
393 my ($fullname, $name, $mid, $f_exps) = @_;
395 for my $f_exp (@$f_exps) {
396 (-r $f_exp) or die "Could not read `$f_exp'\n";
398 # Emacs produces temporary files that end in '~' and '#'. We ignore
400 if ($f_exp !~ /[~#]$/) {
401 # $n is the (optional) suffix after the ".exp"; we tack it onto
404 if ($f_exp =~ /.*\.exp(.*)$/) {
408 ($f_exp eq "/dev/null") or die "Unexpected .exp file: $f_exp\n";
411 mysystem("@DIFF@ $f_exp $name.$mid.out > $name.$mid.diff$n");
413 if (not -s "$name.$mid.diff$n") {
414 # A match; remove .out and any previously created .diff files.
415 unlink("$name.$mid.out");
416 unlink(<$name.$mid.diff*>);
421 # If we reach here, none of the .exp files matched.
422 print "*** $name failed ($mid) ***\n";
423 push(@failures, sprintf("%-40s ($mid)", "$fullname"));
424 $num_failures{$mid}++;
425 if ($looptillfail == 1) {
426 print "Failure encountered, stopping to loop\n";
433 my ($dir, $vgtest) = @_;
434 $vgtest =~ /^(.*)\.vgtest/;
436 my $fullname = "$dir/$name";
438 # Pull any extra options (for example, --sanity-level=4)
439 # from $EXTRA_REGTEST_OPTS.
440 my $maybe_extraopts = $ENV{"EXTRA_REGTEST_OPTS"};
441 my $extraopts = $maybe_extraopts ? $maybe_extraopts : "";
443 read_vgtest_file($vgtest);
445 if (defined $prereq) {
446 my $prereq_res = system("/bin/sh", "-c", $prereq);
447 if (0 == $prereq_res) {
448 # Do nothing (ie. continue with the test)
449 } elsif (256 == $prereq_res) {
450 # Nb: weird Perl-ism -- exit code of '1' is seen by Perl as 256...
451 # Prereq failed, skip.
452 printf("%-16s (skipping, prereq failed: $prereq)\n", "$name:");
457 die "prereq returned $prereq_res: $prereq\n";
462 if (defined $progB) {
463 # If there is a progB, let's start it in background:
464 printf("%-16s valgrind $extraopts $vgopts $prog $args (progB: $progB $argsB)\n",
466 # progB.done used to detect child has finished. See below.
467 # Note: redirection of stdout and stderr is before $progB to allow argsB
468 # to e.g. redirect stdoutB to stderrB
469 if (defined $stdinB) {
470 mysystem("(rm -f progB.done;"
471 . " < $stdinB > $name.stdoutB.out 2> $name.stderrB.out $progB $argsB;"
472 . "touch progB.done) &");
474 mysystem("(rm -f progB.done;"
475 . " > $name.stdoutB.out 2> $name.stderrB.out $progB $argsB;"
476 . "touch progB.done) &");
479 printf("%-16s valgrind $extraopts $vgopts $prog $args\n", "$name:");
482 # Collect environment variables, if any.
484 foreach my $e (@env) {
485 $envvars = "$envvars $e";
488 # Pass the appropriate --tool option for the directory (can be overridden
489 # by an "args:" line, though).
490 my $tool=determine_tool();
491 if (defined $outer_valgrind ) {
492 # in an outer-inner setup, only set VALGRIND_LIB_INNER
493 mysystem( "$envvars VALGRIND_LIB_INNER=$valgrind_lib "
495 . "--tool=" . $outer_tool . " "
497 . "--log-file=" . "$name.outer.log "
498 . "$valgrind --command-line-only=yes --memcheck:leak-check=no "
499 . "--sim-hints=no-inner-prefix "
500 . "--tool=$tool $extraopts $vgopts "
501 . "$prog $args > $name.stdout.out 2> $name.stderr.out");
503 # Set both VALGRIND_LIB and VALGRIND_LIB_INNER in case this Valgrind
504 # was configured with --enable-inner.
505 mysystem( "$envvars VALGRIND_LIB=$valgrind_lib VALGRIND_LIB_INNER=$valgrind_lib "
506 . "$valgrind --command-line-only=yes --memcheck:leak-check=no "
507 . "--tool=$tool $extraopts $vgopts "
508 . "$prog $args > $name.stdout.out 2> $name.stderr.out");
512 if (defined $stdout_filter) {
513 $stdout_filter_args = $name if (! defined $stdout_filter_args);
514 mysystem("$stdout_filter $stdout_filter_args < $name.stdout.out > $tmp");
515 filtered_rename($tmp, "$name.stdout.out");
517 # Find all the .stdout.exp files. If none, use /dev/null.
518 my @stdout_exps = <$name.stdout.exp*>;
519 @stdout_exps = ( "/dev/null" ) if (0 == scalar @stdout_exps);
520 do_diffs($fullname, $name, "stdout", \@stdout_exps);
523 $stderr_filter_args = $name if (! defined $stderr_filter_args);
524 mysystem("$stderr_filter $stderr_filter_args < $name.stderr.out > $tmp");
525 filtered_rename($tmp, "$name.stderr.out");
526 # Find all the .stderr.exp files. At least one must exist.
527 my @stderr_exps = <$name.stderr.exp*>;
528 (0 != scalar @stderr_exps) or die "Could not find `$name.stderr.exp*'\n";
529 do_diffs($fullname, $name, "stderr", \@stderr_exps);
531 if (defined $progB) {
532 # wait for the child to be finished
533 # tried things such as:
535 # $SIG{CHLD} = sub { wait };
536 # but nothing worked:
537 # e.g. running mssnapshot.vgtest in a loop failed from time to time
538 # due to some missing output (not yet written?).
539 # So, we search progB.done during max 100 times 100 millisecond.
541 for ($count = 1; $count <= 100; $count++) {
542 (-f "progB.done") or select(undef, undef, undef, 0.100);
545 if (defined $stdoutB_filter) {
546 $stdoutB_filter_args = $name if (! defined $stdoutB_filter_args);
547 mysystem("$stdoutB_filter $stdoutB_filter_args < $name.stdoutB.out > $tmp");
548 filtered_rename($tmp, "$name.stdoutB.out");
550 # Find all the .stdoutB.exp files. If none, use /dev/null.
551 my @stdoutB_exps = <$name.stdoutB.exp*>;
552 @stdoutB_exps = ( "/dev/null" ) if (0 == scalar @stdoutB_exps);
553 do_diffs($fullname, $name, "stdoutB", \@stdoutB_exps);
556 $stderrB_filter_args = $name if (! defined $stderrB_filter_args);
557 mysystem("$stderrB_filter $stderrB_filter_args < $name.stderrB.out > $tmp");
558 filtered_rename($tmp, "$name.stderrB.out");
559 # Find all the .stderrB.exp files. At least one must exist.
560 my @stderrB_exps = <$name.stderrB.exp*>;
561 (0 != scalar @stderrB_exps) or die "Could not find `$name.stderrB.exp*'\n";
562 do_diffs($fullname, $name, "stderrB", \@stderrB_exps);
565 # Maybe do post-test check
567 if (mysystem("$post > $name.post.out") != 0) {
568 print("post check failed: $post\n");
569 $num_failures{"post"}++;
571 # Find all the .post.exp files. If none, use /dev/null.
572 my @post_exps = <$name.post.exp*>;
573 @post_exps = ( "/dev/null" ) if (0 == scalar @post_exps);
574 do_diffs($fullname, $name, "post", \@post_exps);
578 if (defined $cleanup) {
579 (system("$cleanup") == 0) or
580 print("(cleanup operation failed: $cleanup)\n");
586 #----------------------------------------------------------------------------
587 # Test one directory (and any subdirs)
588 #----------------------------------------------------------------------------
589 sub test_one_dir($$); # forward declaration
593 my ($dir, $prev_dirs) = @_;
594 $dir =~ s/\/$//; # trim a trailing '/'
596 # Ignore dirs into which we should not recurse.
597 if ($dir =~ /^(BitKeeper|CVS|SCCS|docs|doc)$/) { return; }
599 (-x "$tests_dir/tests/arch_test") or die
600 "vg_regtest: 'arch_test' is missing. Did you forget to 'make check'?\n";
602 # Ignore any dir whose name matches that of an architecture which is not
603 # the architecture we are running on. Eg. when running on x86, ignore
604 # ppc/ directories ('arch_test' returns 1 for this case). Likewise for
605 # the OS and platform.
606 # Nb: weird Perl-ism -- exit code of '1' is seen by Perl as 256...
607 if (256 == system("$tests_dir/tests/arch_test $dir")) { return; }
608 if (256 == system("$tests_dir/tests/os_test $dir")) { return; }
609 if ($dir =~ /(\w+)-(\w+)/ &&
610 256 == system("sh $tests_dir/tests/platform_test $1 $2")) { return; }
612 chdir($dir) or die "Could not change into $dir\n";
614 # Nb: Don't prepend a '/' to the base directory
615 my $full_dir = $prev_dirs . ($prev_dirs eq "" ? "" : "/") . $dir;
616 my $dashes = "-" x (50 - length $full_dir);
619 my $found_tests = (0 != (grep { $_ =~ /\.vgtest$/ } @fs));
622 print "-- Running tests in $full_dir $dashes\n";
624 foreach my $f (@fs) {
626 test_one_dir($f, $full_dir);
627 } elsif ($f =~ /\.vgtest$/) {
628 do_one_test($full_dir, $f);
632 print "-- Finished tests in $full_dir $dashes\n";
638 #----------------------------------------------------------------------------
640 #----------------------------------------------------------------------------
643 return ( $_[0] == 1 ? "" : "s" );
646 sub summarise_results
648 my $x = ( $num_tests_done == 1 ? "test" : "tests" );
650 printf("\n== %d test%s, %d stderr failure%s, %d stdout failure%s, "
651 . "%d stderrB failure%s, %d stdoutB failure%s, "
652 . "%d post failure%s ==\n",
653 $num_tests_done, plural($num_tests_done),
654 $num_failures{"stderr"}, plural($num_failures{"stderr"}),
655 $num_failures{"stdout"}, plural($num_failures{"stdout"}),
656 $num_failures{"stderrB"}, plural($num_failures{"stderrB"}),
657 $num_failures{"stdoutB"}, plural($num_failures{"stdoutB"}),
658 $num_failures{"post"}, plural($num_failures{"post"}));
660 foreach my $failure (@failures) {
666 #----------------------------------------------------------------------------
668 #----------------------------------------------------------------------------
669 sub warn_about_EXTRA_REGTEST_OPTS()
671 print "WARNING: \$EXTRA_REGTEST_OPTS is set. You probably don't want\n";
672 print "to run the regression tests with it set, unless you are doing some\n";
673 print "strange experiment, and/or you really know what you are doing.\n";
678 $ENV{"VALGRIND_OPTS"} = "";
680 if ($ENV{"EXTRA_REGTEST_OPTS"}) {
682 warn_about_EXTRA_REGTEST_OPTS();
685 my @fs = process_command_line();
686 while (1) { # we will exit after one loop, unless looptillfail
687 foreach my $f (@fs) {
689 test_one_dir($f, "");
691 # Allow the .vgtest suffix to be given or omitted
692 if ($f =~ /.vgtest$/ && -r $f) {
694 } elsif (-r "$f.vgtest") {
697 die "`$f' neither a directory nor a readable test file/name\n"
699 my $dir = `dirname $f`; chomp $dir;
700 my $file = `basename $f`; chomp $file;
701 chdir($dir) or die "Could not change into $dir\n";
702 do_one_test($dir, $file);
706 if ($looptillfail == 0) {
712 if ($ENV{"EXTRA_REGTEST_OPTS"}) {
713 warn_about_EXTRA_REGTEST_OPTS();
716 if (0 == $num_failures{"stdout"} &&
717 0 == $num_failures{"stderr"} &&
718 0 == $num_failures{"stdoutB"} &&
719 0 == $num_failures{"stderrB"} &&
720 0 == $num_failures{"post"}) {
726 ##--------------------------------------------------------------------##
727 ##--- end vg_regtest ---##
728 ##--------------------------------------------------------------------##