1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
|
# Provides the commands:
#
# perl_backtrace_5_10_0
# perl_backtrace_5_10_1
# perl_backtrace_5_12_x
# perl_backtrace_5_14_x
#
# Example usage:
#
# gdb -p 7107
# (gdb) source gdbinit.txt
# (gdb) perl_backtrace_5_14_x
# (gdb) detach
# (gdb) quit
set $DEBUG = 0
set $CXTYPEMASK = 0xf
set $PERL_ITHR_JOINABLE = 0
set $PERL_ITHR_DETACHED = 1
set $PERL_ITHR_JOINED = 2
set $PERL_ITHR_FINISHED = 4
set $PERL_ITHR_THREAD_EXIT_ONLY = 8
set $PERL_ITHR_NONVIABLE = 16
set $PERL_ITHR_DIED = 32
set $PERL_ITHR_UNCALLABLE = $PERL_ITHR_DETACHED | $PERL_ITHR_JOINED
define perl_backtrace_an_interp
set $stackinfo = (PERL_SI*)$interpreter->Icurstackinfo
while $stackinfo != 0
set $cxstack = $stackinfo->si_cxstack
set $cxix = $stackinfo->si_cxix
set $i = 0
while $i <= $cxix
set $context = $cxstack[$i]
set $type = $context->cx_u.cx_subst.sbu_type & $CXTYPEMASK
if $type == $CXt_SUB || $type == $CXt_EVAL || $type == $CXt_FORMAT
set $file = 0
set $cop = $context->cx_u.cx_blk.blku_oldcop
set $file = $cop->cop_file
if $file == 0
set $file = "undef"
end
set $line = $cop->cop_line
printf "%s:%d\n", $file, $line
else
if $DEBUG
printf "%d\t... # (context*){cx_type=%d}\n", $i, $type
end
end
set $i = $i + 1
end
set $stackinfo = $stackinfo->si_prev
end
end
define perl_backtrace_a_thread
set $tid = $thread->tid
set $statei = $thread->state
if $statei == $PERL_ITHR_DETACHED
set $state = "detached"
else
if $statei == $PERL_ITHR_JOINED
set $state = "joined"
else
if $statei = $PERL_ITHR_FINISHED
set $state = "finished"
else
if $statei == $PERL_ITHR_THREAD_EXIT_ONLY
set $state = "exit()"
else
if $statei == $PERL_ITHR_NONVIABLE
set $state = "thread creation failed"
else
if $statei == $PERL_ITHR_DIED
set $state = "died"
else
if $statei == $PERL_ITHR_UNCALLABLE
set $state = "uncallable"
else
set $state = "???"
end
end
end
end
end
end
end
printf "thread %d %s:\n", $tid, $state
set $interpreter = $thread->interp
perl_backtrace_an_interp
end
define perl_backtrace_nothreads
set $stackinfo = PL_curstackinfo
while $stackinfo
set $cxstack = $stackinfo->si_cxstack
set $cxix = $stackinfo->si_cxix
set $i = 0
while $i <= $cxix
set $context = $cxstack[$i]
set $type = $context->cx_u.cx_subst.sbu_type & $CXTYPEMASK
if $type == $CXt_SUB || $type == $CXt_EVAL || $type == $CXt_FORMAT
set $file = 0
set $cop = $context->cx_u.cx_blk.blku_oldcop
set $gv = $cop->cop_filegv
if $gv
set $sv = $gv->sv_u.svu_gp->gp_sv
if $sv
set $file = $sv->sv_u.svu_pv
end
end
if ! $file
set $file = "undef"
end
set $line = $cop->cop_line
printf "%s:%d\n", $file, $line
end
set $i = $i + 1
end
set $stackinfo = $stackinfo->si_prev
end
end
define perl_backtrace_5_8_an_interp
set $stackinfo = (PERL_SI*)$interpreter->Tcurstackinfo
while $stackinfo
set $cxstack = $stackinfo->si_cxstack
set $cxix = $stackinfo->si_cxix
set $i = 0
while $i <= $cxix
set $context = $cxstack[$i]
set $type = $context->cx_type & $CXTYPEMASK
if $type == $CXt_SUB || $type == $CXt_EVAL || $type == $CXt_FORMAT
set $file = 0
set $cop = $context->cx_u.cx_blk.blku_oldcop
set $file = $cop->cop_file
if ! $file
set $file = "undef"
end
set $line = $cop->cop_line
printf "%s:%d\n", $file, $line
else
if $DEBUG
printf "%d\t... # (context*){cx_type=%d}\n", $i, $type
end
end
set $i = $i + 1
end
set $stackinfo = $stackinfo->si_prev
end
end
define perl_backtrace_5_8_nothreads
set $stackinfo = PL_curstackinfo
while $stackinfo
set $cxstack = $stackinfo->si_cxstack
set $cxix = $stackinfo->si_cxix
set $i = 0
while $i <= $cxix
set $context = $cxstack[$i]
set $type = $context->cx_type & $CXTYPEMASK
if $type == $CXt_SUB || $type == $CXt_EVAL || $type == $CXt_FORMAT
set $cop = $context->cx_u.cx_blk.blku_oldcop
set $gv = $cop->cop_filegv
if $gv
set $sv = (((struct xpvgv*)($gv)->sv_any)->xgv_gp)->gp_sv
if $sv
set $file = ((struct xpv*) ($sv)->sv_any)->xpv_pv
else
set $file = "undef"
end
else
set $file = "undef"
end
set $line = $cop->cop_line
printf "%s:%d\n", $file, $line
end
set $i = $i + 1
end
set $stackinfo = $stackinfo->si_prev
end
end
define perl_backtrace_5_8_a_thread
if $thread
set $tid = $thread->tid
set $statei = $thread->state
if $statei == $PERL_ITHR_DETACHED
set $state = "detached"
else
if $statei == $PERL_ITHR_JOINED
set $state = "joined"
else
if $statei = $PERL_ITHR_FINISHED
set $state = "finished"
else
if $statei == $PERL_ITHR_THREAD_EXIT_ONLY
set $state = "exit()"
else
if $statei == $PERL_ITHR_NONVIABLE
set $state = "thread creation failed"
else
if $statei == $PERL_ITHR_DIED
set $state = "died"
else
if $statei == $PERL_ITHR_UNCALLABLE
set $state = "uncallable"
else
set $state = "???"
end
end
end
end
end
end
end
printf "thread %d %s:\n", $tid, $state
set $interpreter = $thread->interp
else
set $interpreter = my_perl
end
perl_backtrace_5_8_an_interp
end
define perl_backtrace_5_8_threads
set $main_thread = threads
set $thread = $main_thread
perl_backtrace_5_8_a_thread
if $thread
set $thread = $thread->next
while $thread && $thread != $main_thread
perl_backtrace_5_8_a_thread
set $thread = $thread->next
end
end
end
define perl_backtrace_5_8
set $CXt_SUB = 1
set $CXt_EVAL = 2
set $CXt_FORMAT = 6
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
perl_backtrace_5_8_threads
else
perl_backtrace_5_8_nothreads
end
end
define perl_backtrace_5_8_9_an_interp
set $stackinfo = (PERL_SI*)$interpreter->Icurstackinfo
while $stackinfo
set $cxstack = $stackinfo->si_cxstack
set $cxix = $stackinfo->si_cxix
set $i = 0
while $i <= $cxix
set $context = $cxstack[$i]
set $type = $context->cx_u.cx_subst.sbu_type & $CXTYPEMASK
if $type == $CXt_SUB || $type == $CXt_EVAL || $type == $CXt_FORMAT
set $file = 0
set $cop = $context->cx_u.cx_blk.blku_oldcop
set $file = $cop->cop_file
if ! $file
set $file = "undef"
end
set $line = $cop->cop_line
printf "%s:%d\n", $file, $line
else
if $DEBUG
printf "%d\t... # (context*){cx_type=%d}\n", $i, $type
end
end
set $i = $i + 1
end
set $stackinfo = $stackinfo->si_prev
end
end
define perl_backtrace_5_8_9_nothreads
perl_backtrace_5_8_nothreads
end
define perl_backtrace_5_8_9_a_thread
set $tid = $thread->tid
set $statei = $thread->state
if $statei == $PERL_ITHR_DETACHED
set $state = "detached"
else
if $statei == $PERL_ITHR_JOINED
set $state = "joined"
else
if $statei = $PERL_ITHR_FINISHED
set $state = "finished"
else
if $statei == $PERL_ITHR_THREAD_EXIT_ONLY
set $state = "exit()"
else
if $statei == $PERL_ITHR_NONVIABLE
set $state = "thread creation failed"
else
if $statei == $PERL_ITHR_DIED
set $state = "died"
else
if $statei == $PERL_ITHR_UNCALLABLE
set $state = "uncallable"
else
set $state = "???"
end
end
end
end
end
end
end
printf "thread %d %s:\n", $tid, $state
set $interpreter = $thread->interp
perl_backtrace_5_8_9_an_interp
end
define perl_backtrace_5_8_9_threads
set $main_thread = threads
set $thread = $main_thread
perl_backtrace_5_8_9_a_thread
if $thread
set $thread = $thread->next
while $thread && $thread != $main_thread
perl_backtrace_5_8_9_a_thread
set $thread = $thread->next
end
end
end
define perl_backtrace_5_8_9
set $CXt_SUB = 1
set $CXt_EVAL = 2
set $CXt_FORMAT = 6
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
set $POOL_KEY = "threads::_pool1.71"
set $POOL_KEY_LEN = 18
perl_backtrace_5_8_9_threads
else
perl_backtrace_5_8_nothreads
end
end
define perl_backtrace_5_10_threads
set $modglobal = $interpreter->Imodglobal
set $my_pool_svp = Perl_hv_fetch($interpreter, $modglobal, $POOL_KEY, $POOL_KEY_LEN, 0)
if $my_pool_svp
set $my_pool_sv = *$my_pool_svp
set $my_pool_svval = (struct xpvuv*)($my_pool_sv->sv_any)
set $my_poolp = (my_pool_t*)($my_pool_svval->xuv_u.xuvu_uv)
set $main_thread = &($my_poolp->main_thread)
set $thread = $main_thread
perl_backtrace_a_thread
set $thread = $main_thread->next
while $thread != $main_thread
perl_backtrace_a_thread
set $thread = $thread->next
end
else
set $interpreter = my_perl
perl_backtrace_an_interp
end
end
define perl_backtrace_5_10_0
set $CXt_SUB = 1
set $CXt_EVAL = 2
set $CXt_FORMAT = 6
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
set $POOL_KEY = "threads::_pool1.67"
set $POOL_KEY_LEN = 18
perl_backtrace_5_10_threads
else
perl_backtrace_nothreads
end
end
define perl_backtrace_5_10_1
set $CXt_SUB = 1
set $CXt_EVAL = 2
set $CXt_FORMAT = 6
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
set $POOL_KEY = "threads::_pool1.72"
set $POOL_KEY_LEN = 18
perl_backtrace_5_10_threads
else
perl_backtrace_nothreads
end
end
define perl_backtrace_5_12_threads
set $modglobal = $interpreter->Imodglobal
set $my_pool_svp = Perl_hv_fetch($interpreter, $modglobal, $POOL_KEY, $POOL_KEY_LEN, 0)
if $my_pool_svp
set $my_pool_sv = *$my_pool_svp
set $my_pool_svval = (struct xpvuv*)($my_pool_sv->sv_any)
set $my_poolp = (my_pool_t*)($my_pool_svval->xuv_u.xivu_uv)
set $main_thread = &($my_poolp->main_thread)
set $thread = $main_thread
perl_backtrace_a_thread
set $thread = $main_thread->next
while $thread != $main_thread
perl_backtrace_a_thread
set $thread = $thread->next
end
else
set $interpreter = my_perl
perl_backtrace_an_interp
end
end
define perl_backtrace_5_12_x
set $CXt_SUB = 8
set $CXt_FORMAT = 9
set $CXt_EVAL = 10
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
set $POOL_KEY = "threads::_pool1.75"
set $POOL_KEY_LEN = 18
perl_backtrace_5_12_threads
else
perl_backtrace_nothreads
end
end
define perl_backtrace_5_14_x
set $CXt_SUB = 8
set $CXt_FORMAT = 9
set $CXt_EVAL = 10
set $interpreter = (PerlInterpreter*)Perl_get_context()
if $interpreter
set $POOL_KEY = "threads::_pool1.83"
set $POOL_KEY_LEN = 18
perl_backtrace_5_12_threads
else
perl_backtrace_nothreads
end
end
define perl_backtrace_5_38_x
set $CXt_SUB = 8
set $CXt_FORMAT = 9
set $CXt_EVAL = 10
set $interpreter = (PerlInterpreter*)PL_current_context
if $interpreter
set $POOL_KEY = "threads::_pool1.83"
set $POOL_KEY_LEN = 18
perl_backtrace_5_12_threads
else
perl_backtrace_nothreads
end
end
|
