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# Library of functions for dealing with DejaGNU, or which are otherwise
2
# generally useful for the DejaGNU tool stack.
3
#
4
# Author: Matthew Sachs <msachs@apple.com>
5
#
6
# Functions:
7
#       parseLogFile: See "sub parseLogFile" below for details.  This function
8
#               returns a detailed parse of a DejaGNU log or sum file.
9
#       ispass: Takes a DejaGNU result (e.g. "PASS", "XPASS") and returns
10
#               true if and only if it is a passing result (PASS, XFAIL, or
11
#               KFAIL.)
12
#
13
# Copyright (c) 2006 Free Software Foundation.
14
#
15
# This file is part of GCC.
16
#
17
# GCC is free software; you can redistribute it and/or modify
18
# it under the terms of the GNU General Public License as published by
19
# the Free Software Foundation; either version 2, or (at your option)
20
# any later version.
21
#
22
# GCC is distributed in the hope that it will be useful,
23
# but WITHOUT ANY WARRANTY; without even the implied warranty of
24
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
25
# GNU General Public License for more details.
26
#
27
# You should have received a copy of the GNU General Public License
28
# along with GCC; see the file COPYING.  If not, write to
29
# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
30
# Boston, MA 02110-1301, USA.
31
 
32
package dglib;
33
 
34
use strict;
35
use warnings;
36
use Exporter;
37
 
38
our @ISA = qw(Exporter);
39
our @EXPORT = qw(ispass parseLogFile);
40
 
41
use File::Basename;
42
use POSIX qw(mktime);
43
 
44
 
45
# Create a group hierarchy, returning the leaf node
46
sub mkGroupPath {
47
        my($root, $groups, @newgroups) = @_;
48
 
49
        my $parent = $root;
50
        my $fullname = "";
51
        foreach my $group(@newgroups) {
52
                $fullname .= "/" if $fullname;
53
                $fullname .= $group;
54
                if(exists($groups->{$fullname})) {
55
                        $parent = $groups->{$fullname};
56
                } else {
57
                        my $newgroup = {name => $group, parent => $parent};
58
                        $groups->{$fullname} = $newgroup;
59
                        $parent->{testgroup} ||= [];
60
                        push @{$parent->{testgroup}}, $newgroup;
61
                        $parent = $newgroup;
62
                }
63
        }
64
 
65
        return $parent;
66
}
67
 
68
# Extract information from DejaGNU log or sum files.
69
# Options, if provided, should be a hashref with zero or more of the following keys:
70
#       gccdir:
71
#               Passing in the full path to the root of the gcc/testsuite directory
72
#               will help in the parsing, but if it isn't provided, it will be guessed.
73
#       diagnostics:
74
#               If set to 0, diagnostics will not be returned.  This can save a lot
75
#               of memory if you are not using this information.
76
#       fullname:
77
#               If set to 0, the fullname key will not be included in tests.
78
# Returns a hash with the following keys:
79
#       incomplete: 1 if the summary file appears truncated, otherwise 0
80
#       diagnostics: List of (type, value) for any errors detected.  Type can be ERROR, WARNING, or NOTE.
81
#       test: Array of root-level tests, with keys:
82
#               name: Name of the test, relative to the enclosing test group.
83
#               fullname: Fully-qualified name of the test.
84
#               result: DejaGNU result (PASS, FAIL, XPASS, &c)
85
#               detail: For multi-phase (e.g. compile/link/execute), this will be
86
#                       the furthest phase which the test was able to attempt,
87
#                       so if the result is FAIL and this is "link phase", the test
88
#                       compiled but failed to link.  This key may contain other
89
#                       auxiliary data.
90
#               pseudotest: If 1, this test may not really exist; see "pseudotest" below.
91
#       testgroup: Array of root-level testgroups, with keys:
92
#               name: Name of the group.
93
#               parent: Parent test group.
94
#               test: As per above.
95
#               testgroup: Child test groups.
96
#       compiler: Version string from compiler used to run the tests (if detected)
97
sub parseLogFile($;$) {
98
        my($logfile, $options) = @_;
99
        $options ||= {};
100
        my $gccdir = $options->{gccdir} || "";
101
        my $return_diags = exists($options->{diagnostics}) ? $options->{diagnostics} : 1;
102
        my $emit_fullname = exists($options->{fullname}) ? $options->{fullname} : 1;
103
        my $is_gdb = 0;
104
        my $gdbhack = "";
105
 
106
        my %ret = (incomplete => 1, diagnostics => [], testgroup => []);
107
        my(%testindex, %groupindex);
108
 
109
        open(LOGFILE, $logfile) or die "Couldn't open log file $logfile: $!\n";
110
 
111
        my($currgroup, $currtest, $lastrun);
112
        $currgroup = \%ret;
113
 
114
        my %monmap = (Jan => 0, Feb => 1, Mar => 2, Apr => 3, May => 4, Jun => 5, Jul => 6, Aug => 7, Sep => 8, Oct => 9, Nov => 10, Dec => 11);
115
 
116
        # We don't want gccdir matching on an empty string.
117
        $gccdir ||= "this will never match, or my name isn't Reginald St. Croix";
118
 
119
        my $line = 1;
120
        while(<LOGFILE>) {
121
                chomp;
122
                s/\x{d}$//; #^M
123
                next if $_ eq "";
124
 
125
                if(/^gcc version/) {
126
                        $ret{compiler} = $_;
127
                } elsif(/^got a .* signal, interrupted by user /) {
128
                        $ret{incomplete} = 2;
129
                } elsif(/^\s*=== gdb/) {
130
                        $is_gdb = 1;
131
                        # The log file from the GDB test suite is prone to have random crap
132
                        # in front of test result lines, so we need to be looser about how
133
                        # we parse those for GDB.
134
                        $gdbhack = ".*";
135
                } elsif(/^(Test Run By \S+ on|runtest completed at) ... (.{3}) (\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2}) (\d{4})/) {
136
                        my $time = mktime($6, $5, $4, $3, $monmap{$2}, $7 - 1900);
137
                        if($1 eq "runtest completed at") {
138
                                $ret{end_time} = $time;
139
                        } else {
140
                                $ret{start_time} = $time;
141
                        }
142
                } elsif(m<^Running (?!target )\Q$gccdir\E/?(\S+)> or m<^Running (?!target )\S*?((?:gcc|gdb|libstdc\+\+-v3)/testsuite/\S+)>) {
143
                        # We keep track of the last "Running foo/bar/baz.exp" line because
144
                        # some tests don't bother printing out the full paths of their files,
145
                        # and this gives us the directory information.
146
 
147
                        $lastrun = $1;
148
                        $lastrun =~ s!/[^/]*/\.\.!!; # foo/bar/../baz -> foo/baz
149
                        $currgroup = mkGroupPath(\%ret, \%groupindex, split(m!/!, $lastrun));
150
                        #$currgroup->{testfile} = $lastrun;
151
                } elsif(/^Executing on (.*?):(.*)/) {
152
                        # Okay, if it's "Executing on host", it's a new
153
                        # file.  If it's "Executing on unix", it's probably
154
                        # a test within the file -- an execution test, specifically --
155
                        # (makes sense, no?)  But not always, sometimes we
156
                        # see "Executing on unix" outside the context of a
157
                        # file.
158
 
159
                        # Try to pick out the gccdir-relative filename.
160
                        # If we can't find it, it isn't really a new testfile,
161
                        # but a derived file.
162
                        my($exectype, $execwhat) = ($1, $2);
163
                        next if $execwhat =~ /^dsymutil/;
164
                        $execwhat =~
165
                                s!.*?\s\Q$gccdir\E/?(\S+).*!$1! or
166
                                s!.*?/((?:gcc|gdb|libstdc\+\+-v3)/testsuite/\S+).*!$1! or
167
                                $exectype = "unix";
168
 
169
                        if($exectype eq "host" or !$currgroup) {
170
                                # New file
171
 
172
                                my $nogroup = 0;
173
                                if($execwhat =~ / /) {
174
                                        # We probably haven't parsed the file correctly.
175
                                        # Try getting it from $lastrun.
176
 
177
                                        $execwhat = dirname($lastrun) . "/" . basename($execwhat) if $lastrun and $execwhat;
178
                                        $execwhat =~ s/\s.*//;
179
 
180
                                        # At the end of each tool, it invokes "gcc -v" or "c++ -v"
181
                                        # as a test.  We don't really want to treat this as a test.
182
                                        if($execwhat =~ m!/(gcc|c\+\+)$!) {
183
                                                undef $currtest;
184
                                                undef $currgroup;
185
                                                $nogroup = 1;
186
                                        }
187
                                }
188
 
189
                                if(!$nogroup) {
190
                                        undef $currtest;
191
                                        $execwhat =~ s!/[^/]*/\.\.!!; # foo/bar/../baz -> foo/baz
192
 
193
                                        if($lastrun) {
194
                                                my $lastbase = dirname($lastrun);
195
                                                my $basegroup = $execwhat;
196
                                                $basegroup =~ s!^\Q$lastbase\E/!!;
197
                                                $execwhat = "$lastrun/$basegroup";
198
                                        }
199
 
200
                                        $currgroup = mkGroupPath(\%ret, \%groupindex, split(m!/!, $execwhat));
201
                                        #$currgroup->{testfile} = $execwhat;
202
                                }
203
                        } else {
204
                                # New test within current file
205
 
206
                                $currtest = {};
207
                        }
208
                } elsif(/^# of/) {
209
                        # This line appears should appear near the end of summary files.
210
                        # If it doesn't, something went wrong.
211
 
212
                        if($ret{incomplete} == 2) {
213
                                #Ah, but we previously saw indication that we were killed via a signal.
214
                                $ret{incomplete} = 1;
215
                        } else {
216
                                $ret{incomplete} = 0;
217
                        }
218
                } elsif(/^testcase .* completed/) {
219
                        # End of a .exp file
220
                        undef $currtest;
221
                        undef $currgroup;
222
                } elsif(/^$gdbhack(FAIL|PASS|UNRESOLVED|UNSUPPORTED|UNTESTED|XFAIL|XPASS|KFAIL|KPASS): (.*)/) {
223
                        # If the currtest already has a name, that means we've already seen
224
                        # its results, so what we have now is a new test.  However, if we
225
                        # haven't seen results for currtest yet, that means currtest just
226
                        # has some diagnostics associated with it but no actual results,
227
                        # so just use that one.
228
                        undef $currtest if $currtest->{name};
229
 
230
                        my $phase = ""; # compile/link/execute
231
                        my($test, $result) = ($2, $1);
232
 
233
                        # Compile/(link/)execute combining
234
                        if($test =~ /^(.*) compile\s*$/) {
235
                                $test = "$1 compile,link,execute";
236
                                $phase = "compile";
237
                        } elsif($test =~ /^(.*)-(.*) (link|execute)\s*$/) {
238
                                $test = "$1 compile,link,execute";
239
                                if($3 eq "link") {
240
                                        $phase = "link";
241
                                } else {
242
                                        $phase = "execute";
243
                                }
244
                        } elsif($test =~ /(compile|compilation|execute|execution)/) {
245
                                my $phasematch = $1;
246
                                if($test =~ /^com/) {
247
                                        $phase = "compile";
248
                                } else {
249
                                        $phase = "execute";
250
                                }
251
                                $test =~ s!\Q$phasematch\E!compile,execute!;
252
                        }
253
 
254
                        # gcov tests behave in non-standard fashion.
255
                        my $failwhy = "";
256
                        $test =~ s/ gcov failed: (.*)// and $failwhy = $1;
257
 
258
                        # And some other tests have random information after a colon :(
259
                        # But for scan-assembler, this really is part of the name.
260
                        if(!$is_gdb and $test !~ /scan-assembler/ and $test =~ s/:\s*(.+)//) {
261
                                $failwhy = $1;
262
                        }
263
 
264
                        $test =~ s/\s*$//;
265
                        $test =~ s/^\s*$//;
266
 
267
                        # Sometimes there's a test which shows up as:
268
                        #       foo (test for excess errors)
269
                        #       foo (something else)
270
                        #       foo: error executing dg-final
271
                        # if it runs, but just:
272
                        #       foo
273
                        # if it doesn't.  When we see the top form, we create a
274
                        # "pseudotest" in the bottom form, so that comparisons
275
                        # can be made.
276
                        my $basetest = $test;
277
                        $basetest =~ s/:? .*//;
278
 
279
                        if(exists($testindex{$test}) and !$testindex{$test}->{pseudotest}) {
280
                                $currtest = $testindex{$test};
281
                                if(ispass($currtest->{result})) {
282
                                        $currtest->{result} = $result;
283
                                        $currtest->{detail} = "$phase phase";
284
                                        $currtest->{detail} .= "; $failwhy" if $failwhy;
285
                                }
286
                        } else {
287
                                # This might have been created earlier as a pseudotest.
288
                                # If so, overwrite it.
289
                                $currtest ||= $testindex{$test} || {};
290
 
291
                                $currtest->{name} = basename($test);
292
                                if($emit_fullname) {
293
                                        $currtest->{fullname} = ($currgroup->{name} || dirname($test)) . "/$currtest->{name}";
294
                                }
295
                                my $grpname = $currgroup->{name} || "";
296
                                $currtest->{name} =~ s/^\s*\Q$grpname\E\s*//;
297
                                $currtest->{name} =~ s/^: // if $is_gdb;
298
                                # Sometimes there's a test at the root of the group.
299
                                # For instance, you'll have:
300
                                #       FAIL: foo/bar.c (test for excess errors)
301
                                #       UNRESOLVED: foo/bar.c: couldn't open "bar.s": no such file or directory
302
                                # In this case, groupname *is* the entire name, so the regex above will make the test name empty.
303
                                # In this case, we actually want to use the parent group and make this a test within that group.
304
                                my $orig_currgroup = $currgroup;
305
                                if(!$currtest->{name}) {
306
                                        $currtest->{name} = $grpname;
307
                                        $currgroup = $currgroup->{parent};
308
                                        $grpname = $currgroup->{name} || "";
309
                                }
310
 
311
                                $currtest->{result} = $result;
312
                                if($phase and $failwhy) {
313
                                        $currtest->{detail} = "$phase phase; $failwhy" if $phase;
314
                                } elsif($phase) {
315
                                        $currtest->{detail} = "$phase phase";
316
                                } elsif($failwhy) {
317
                                        $currtest->{detail} = $failwhy;
318
                                }
319
 
320
                                $currgroup->{test} ||= [];
321
                                push @{$currgroup->{test}}, $currtest;
322
                                $testindex{$test} = $currtest;
323
                                $currgroup = $orig_currgroup;
324
 
325
                                if($basetest ne $test) {
326
                                        if(!exists($testindex{$basetest}) ) {
327
                                                my $btbase = basename($basetest);
328
                                                $testindex{$basetest} = {
329
                                                        name => $btbase,
330
                                                        result => $result,
331
                                                        pseudotest => 1,
332
                                                        fullname => $btbase
333
                                                };
334
                                                if($emit_fullname) {
335
                                                        $testindex{basetest}->{fullname} = ($currgroup->{name} || dirname($basetest)) . "/$btbase";
336
                                                }
337
                                                push @{$currgroup->{parent}->{test}}, $testindex{$basetest};
338
                                        } else {
339
                                                # Only let the base test pass if all the sub-tests pass
340
                                                $testindex{$basetest}->{result} = $result if !ispass($result);
341
                                        }
342
                                }
343
 
344
                        }
345
                } elsif(/^\s+=== .* Summary ===\s*$/) {
346
                        undef $currgroup;
347
                        undef $currtest;
348
                }
349
 
350
                my $severity;
351
                if(/^(ERROR|WARNING|NOTE): (.*)/) {
352
                        $severity = $1;
353
                        my $message = $2;
354
 
355
                        if($message eq "program timed out.") {
356
                                $currtest->{result} = "TIMEDOUT";
357
                        } elsif(
358
                                $message =~ /can't read "(HOSTCC|libiconv)": no such variable/ or
359
                                $message =~ /no files matched glob pattern/ or
360
                                $message =~ /error executing dg-final: .*: no such file/
361
                        ) {
362
                                $severity = "NOTE";
363
                        }
364
                } else {
365
                        $severity = "logline";
366
                }
367
 
368
                if($return_diags) {
369
                        my $dobj;
370
                        if($currtest) {
371
                        $currtest->{diagnostics} ||= [];
372
                                $dobj = $currtest->{diagnostics};
373
                        } elsif($currgroup) {
374
                                $currgroup->{diagnostics} ||= [];
375
                                $dobj = $currgroup->{diagnostics};
376
                        } else {
377
                                $dobj = $ret{diagnostics};
378
                        }
379
 
380
                        push @$dobj, {message => $_, severity => $severity, line => $line};
381
                }
382
        } continue {
383
                $line++;
384
        }
385
        close LOGFILE;
386
 
387
        return %ret;
388
}
389
 
390
# Split a test into testdivs
391
sub splitTest($$) {
392
        my($root, $test) = @_;
393
 
394
        $test->{fullname} =~ /^(\S+)\s*(.*)/;
395
        my($path, $descriptor) = ($1, $2);
396
        my @nodes = split(m!/!, $path);
397
        push @nodes, $descriptor if $descriptor;
398
        my $lastnode = pop @nodes;
399
 
400
        my $hash = $root;
401
        foreach (@nodes) {
402
                $hash->{testdiv} ||= {};
403
                $hash = $hash->{testdiv}->{$_} ||= {};
404
        }
405
 
406
 
407
        $hash->{test} ||= {};
408
        $hash->{test}->{$lastnode} = $test;
409
}
410
 
411
 
412
# ==== Comparison ====
413
 
414
sub ispass($) {
415
        my $result = shift;
416
 
417
        if($result eq "PASS" or $result eq "XFAIL" or $result eq "KFAIL") {
418
                return 1;
419
        } else {
420
                return 0;
421
        }
422
}
423
 
424
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