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1e611234 PM |
1 | /* Python frame filters |
2 | ||
61baf725 | 3 | Copyright (C) 2013-2017 Free Software Foundation, Inc. |
1e611234 PM |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "objfiles.h" | |
22 | #include "symtab.h" | |
23 | #include "language.h" | |
1e611234 PM |
24 | #include "arch-utils.h" |
25 | #include "python.h" | |
26 | #include "ui-out.h" | |
27 | #include "valprint.h" | |
28 | #include "annotate.h" | |
29 | #include "hashtab.h" | |
30 | #include "demangle.h" | |
31 | #include "mi/mi-cmds.h" | |
32 | #include "python-internal.h" | |
ee0a3fb8 | 33 | #include "py-ref.h" |
1e611234 PM |
34 | |
35 | enum mi_print_types | |
36 | { | |
37 | MI_PRINT_ARGS, | |
38 | MI_PRINT_LOCALS | |
39 | }; | |
40 | ||
41 | /* Helper function to extract a symbol, a name and a language | |
42 | definition from a Python object that conforms to the "Symbol Value" | |
43 | interface. OBJ is the Python object to extract the values from. | |
44 | NAME is a pass-through argument where the name of the symbol will | |
45 | be written. NAME is allocated in this function, but the caller is | |
46 | responsible for clean up. SYM is a pass-through argument where the | |
63e43d3a PMR |
47 | symbol will be written and SYM_BLOCK is a pass-through argument to |
48 | write the block where the symbol lies in. In the case of the API | |
49 | returning a string, this will be set to NULL. LANGUAGE is also a | |
50 | pass-through argument denoting the language attributed to the | |
51 | Symbol. In the case of SYM being NULL, this will be set to the | |
52 | current language. Returns EXT_LANG_BT_ERROR on error with the | |
53 | appropriate Python exception set, and EXT_LANG_BT_OK on success. */ | |
1e611234 | 54 | |
6dddc817 | 55 | static enum ext_lang_bt_status |
9b972014 TT |
56 | extract_sym (PyObject *obj, gdb::unique_xmalloc_ptr<char> *name, |
57 | struct symbol **sym, struct block **sym_block, | |
58 | const struct language_defn **language) | |
1e611234 | 59 | { |
ee0a3fb8 | 60 | gdbpy_ref result (PyObject_CallMethod (obj, "symbol", NULL)); |
1e611234 PM |
61 | |
62 | if (result == NULL) | |
6dddc817 | 63 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
64 | |
65 | /* For 'symbol' callback, the function can return a symbol or a | |
66 | string. */ | |
ee0a3fb8 | 67 | if (gdbpy_is_string (result.get ())) |
1e611234 | 68 | { |
ee0a3fb8 | 69 | *name = python_string_to_host_string (result.get ()); |
1e611234 PM |
70 | |
71 | if (*name == NULL) | |
6dddc817 | 72 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
73 | /* If the API returns a string (and not a symbol), then there is |
74 | no symbol derived language available and the frame filter has | |
75 | either overridden the symbol with a string, or supplied a | |
76 | entirely synthetic symbol/value pairing. In that case, use | |
77 | python_language. */ | |
78 | *language = python_language; | |
79 | *sym = NULL; | |
63e43d3a | 80 | *sym_block = NULL; |
1e611234 PM |
81 | } |
82 | else | |
83 | { | |
84 | /* This type checks 'result' during the conversion so we | |
85 | just call it unconditionally and check the return. */ | |
ee0a3fb8 | 86 | *sym = symbol_object_to_symbol (result.get ()); |
63e43d3a PMR |
87 | /* TODO: currently, we have no way to recover the block in which SYMBOL |
88 | was found, so we have no block to return. Trying to evaluate SYMBOL | |
89 | will yield an incorrect value when it's located in a FRAME and | |
90 | evaluated from another frame (as permitted in nested functions). */ | |
91 | *sym_block = NULL; | |
1e611234 | 92 | |
1e611234 PM |
93 | if (*sym == NULL) |
94 | { | |
95 | PyErr_SetString (PyExc_RuntimeError, | |
96 | _("Unexpected value. Expecting a " | |
97 | "gdb.Symbol or a Python string.")); | |
6dddc817 | 98 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
99 | } |
100 | ||
101 | /* Duplicate the symbol name, so the caller has consistency | |
102 | in garbage collection. */ | |
9b972014 | 103 | name->reset (xstrdup (SYMBOL_PRINT_NAME (*sym))); |
1e611234 PM |
104 | |
105 | /* If a symbol is specified attempt to determine the language | |
106 | from the symbol. If mode is not "auto", then the language | |
107 | has been explicitly set, use that. */ | |
108 | if (language_mode == language_mode_auto) | |
109 | *language = language_def (SYMBOL_LANGUAGE (*sym)); | |
110 | else | |
111 | *language = current_language; | |
112 | } | |
113 | ||
6dddc817 | 114 | return EXT_LANG_BT_OK; |
1e611234 PM |
115 | } |
116 | ||
117 | /* Helper function to extract a value from an object that conforms to | |
118 | the "Symbol Value" interface. OBJ is the Python object to extract | |
119 | the value from. VALUE is a pass-through argument where the value | |
120 | will be written. If the object does not have the value attribute, | |
121 | or provides the Python None for a value, VALUE will be set to NULL | |
6dddc817 DE |
122 | and this function will return as successful. Returns EXT_LANG_BT_ERROR |
123 | on error with the appropriate Python exception set, and EXT_LANG_BT_OK on | |
1e611234 PM |
124 | success. */ |
125 | ||
6dddc817 | 126 | static enum ext_lang_bt_status |
1e611234 PM |
127 | extract_value (PyObject *obj, struct value **value) |
128 | { | |
129 | if (PyObject_HasAttrString (obj, "value")) | |
130 | { | |
ee0a3fb8 | 131 | gdbpy_ref vresult (PyObject_CallMethod (obj, "value", NULL)); |
1e611234 PM |
132 | |
133 | if (vresult == NULL) | |
6dddc817 | 134 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
135 | |
136 | /* The Python code has returned 'None' for a value, so we set | |
137 | value to NULL. This flags that GDB should read the | |
138 | value. */ | |
139 | if (vresult == Py_None) | |
140 | { | |
1e611234 | 141 | *value = NULL; |
6dddc817 | 142 | return EXT_LANG_BT_OK; |
1e611234 PM |
143 | } |
144 | else | |
145 | { | |
ee0a3fb8 | 146 | *value = convert_value_from_python (vresult.get ()); |
1e611234 PM |
147 | |
148 | if (*value == NULL) | |
6dddc817 | 149 | return EXT_LANG_BT_ERROR; |
1e611234 | 150 | |
6dddc817 | 151 | return EXT_LANG_BT_OK; |
1e611234 PM |
152 | } |
153 | } | |
154 | else | |
155 | *value = NULL; | |
156 | ||
6dddc817 | 157 | return EXT_LANG_BT_OK; |
1e611234 PM |
158 | } |
159 | ||
160 | /* MI prints only certain values according to the type of symbol and | |
161 | also what the user has specified. SYM is the symbol to check, and | |
162 | MI_PRINT_TYPES is an enum specifying what the user wants emitted | |
163 | for the MI command in question. */ | |
164 | static int | |
165 | mi_should_print (struct symbol *sym, enum mi_print_types type) | |
166 | { | |
167 | int print_me = 0; | |
168 | ||
169 | switch (SYMBOL_CLASS (sym)) | |
170 | { | |
171 | default: | |
172 | case LOC_UNDEF: /* catches errors */ | |
173 | case LOC_CONST: /* constant */ | |
174 | case LOC_TYPEDEF: /* local typedef */ | |
175 | case LOC_LABEL: /* local label */ | |
176 | case LOC_BLOCK: /* local function */ | |
177 | case LOC_CONST_BYTES: /* loc. byte seq. */ | |
178 | case LOC_UNRESOLVED: /* unresolved static */ | |
179 | case LOC_OPTIMIZED_OUT: /* optimized out */ | |
180 | print_me = 0; | |
181 | break; | |
182 | ||
183 | case LOC_ARG: /* argument */ | |
184 | case LOC_REF_ARG: /* reference arg */ | |
185 | case LOC_REGPARM_ADDR: /* indirect register arg */ | |
186 | case LOC_LOCAL: /* stack local */ | |
187 | case LOC_STATIC: /* static */ | |
188 | case LOC_REGISTER: /* register */ | |
189 | case LOC_COMPUTED: /* computed location */ | |
190 | if (type == MI_PRINT_LOCALS) | |
191 | print_me = ! SYMBOL_IS_ARGUMENT (sym); | |
192 | else | |
193 | print_me = SYMBOL_IS_ARGUMENT (sym); | |
194 | } | |
195 | return print_me; | |
196 | } | |
197 | ||
198 | /* Helper function which outputs a type name extracted from VAL to a | |
199 | "type" field in the output stream OUT. OUT is the ui-out structure | |
200 | the type name will be output too, and VAL is the value that the | |
6dddc817 DE |
201 | type will be extracted from. Returns EXT_LANG_BT_ERROR on error, with |
202 | any GDB exceptions converted to a Python exception, or EXT_LANG_BT_OK on | |
1e611234 PM |
203 | success. */ |
204 | ||
6dddc817 | 205 | static enum ext_lang_bt_status |
1e611234 PM |
206 | py_print_type (struct ui_out *out, struct value *val) |
207 | { | |
1e611234 | 208 | |
492d29ea | 209 | TRY |
1e611234 | 210 | { |
1e611234 PM |
211 | struct ui_file *stb; |
212 | struct cleanup *cleanup; | |
213 | ||
214 | stb = mem_fileopen (); | |
215 | cleanup = make_cleanup_ui_file_delete (stb); | |
78cc6c2d | 216 | check_typedef (value_type (val)); |
1e611234 | 217 | type_print (value_type (val), "", stb, -1); |
112e8700 | 218 | out->field_stream ("type", stb); |
1e611234 PM |
219 | do_cleanups (cleanup); |
220 | } | |
492d29ea | 221 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
222 | { |
223 | gdbpy_convert_exception (except); | |
6dddc817 | 224 | return EXT_LANG_BT_ERROR; |
1e611234 | 225 | } |
492d29ea | 226 | END_CATCH |
1e611234 | 227 | |
6dddc817 | 228 | return EXT_LANG_BT_OK; |
1e611234 PM |
229 | } |
230 | ||
231 | /* Helper function which outputs a value to an output field in a | |
232 | stream. OUT is the ui-out structure the value will be output to, | |
233 | VAL is the value that will be printed, OPTS contains the value | |
234 | printing options, ARGS_TYPE is an enumerator describing the | |
235 | argument format, and LANGUAGE is the language_defn that the value | |
6dddc817 DE |
236 | will be printed with. Returns EXT_LANG_BT_ERROR on error, with any GDB |
237 | exceptions converted to a Python exception, or EXT_LANG_BT_OK on | |
1e611234 PM |
238 | success. */ |
239 | ||
6dddc817 | 240 | static enum ext_lang_bt_status |
1e611234 PM |
241 | py_print_value (struct ui_out *out, struct value *val, |
242 | const struct value_print_options *opts, | |
243 | int indent, | |
6dddc817 | 244 | enum ext_lang_frame_args args_type, |
1e611234 PM |
245 | const struct language_defn *language) |
246 | { | |
247 | int should_print = 0; | |
1e611234 PM |
248 | |
249 | /* MI does not print certain values, differentiated by type, | |
250 | depending on what ARGS_TYPE indicates. Test type against option. | |
251 | For CLI print all values. */ | |
252 | if (args_type == MI_PRINT_SIMPLE_VALUES | |
253 | || args_type == MI_PRINT_ALL_VALUES) | |
254 | { | |
255 | struct type *type = NULL; | |
256 | ||
492d29ea | 257 | TRY |
1e611234 PM |
258 | { |
259 | type = check_typedef (value_type (val)); | |
260 | } | |
492d29ea | 261 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
262 | { |
263 | gdbpy_convert_exception (except); | |
6dddc817 | 264 | return EXT_LANG_BT_ERROR; |
1e611234 | 265 | } |
492d29ea | 266 | END_CATCH |
1e611234 PM |
267 | |
268 | if (args_type == MI_PRINT_ALL_VALUES) | |
269 | should_print = 1; | |
270 | else if (args_type == MI_PRINT_SIMPLE_VALUES | |
271 | && TYPE_CODE (type) != TYPE_CODE_ARRAY | |
272 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
273 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
274 | should_print = 1; | |
275 | } | |
276 | else if (args_type != NO_VALUES) | |
277 | should_print = 1; | |
278 | ||
279 | if (should_print) | |
280 | { | |
492d29ea | 281 | TRY |
1e611234 PM |
282 | { |
283 | struct ui_file *stb; | |
284 | struct cleanup *cleanup; | |
285 | ||
286 | stb = mem_fileopen (); | |
287 | cleanup = make_cleanup_ui_file_delete (stb); | |
288 | common_val_print (val, stb, indent, opts, language); | |
112e8700 | 289 | out->field_stream ("value", stb); |
1e611234 PM |
290 | do_cleanups (cleanup); |
291 | } | |
492d29ea | 292 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
293 | { |
294 | gdbpy_convert_exception (except); | |
6dddc817 | 295 | return EXT_LANG_BT_ERROR; |
1e611234 | 296 | } |
492d29ea | 297 | END_CATCH |
1e611234 PM |
298 | } |
299 | ||
6dddc817 | 300 | return EXT_LANG_BT_OK; |
1e611234 PM |
301 | } |
302 | ||
303 | /* Helper function to call a Python method and extract an iterator | |
304 | from the result. If the function returns anything but an iterator | |
305 | the exception is preserved and NULL is returned. FILTER is the | |
306 | Python object to call, and FUNC is the name of the method. Returns | |
307 | a PyObject, or NULL on error with the appropriate exception set. | |
308 | This function can return an iterator, or NULL. */ | |
309 | ||
310 | static PyObject * | |
311 | get_py_iter_from_func (PyObject *filter, char *func) | |
312 | { | |
313 | if (PyObject_HasAttrString (filter, func)) | |
314 | { | |
ee0a3fb8 | 315 | gdbpy_ref result (PyObject_CallMethod (filter, func, NULL)); |
1e611234 PM |
316 | |
317 | if (result != NULL) | |
318 | { | |
319 | if (result == Py_None) | |
320 | { | |
ee0a3fb8 | 321 | return result.release (); |
1e611234 PM |
322 | } |
323 | else | |
324 | { | |
ee0a3fb8 | 325 | return PyObject_GetIter (result.get ()); |
1e611234 PM |
326 | } |
327 | } | |
328 | } | |
329 | else | |
330 | Py_RETURN_NONE; | |
331 | ||
332 | return NULL; | |
333 | } | |
334 | ||
335 | /* Helper function to output a single frame argument and value to an | |
336 | output stream. This function will account for entry values if the | |
337 | FV parameter is populated, the frame argument has entry values | |
338 | associated with them, and the appropriate "set entry-value" | |
339 | options are set. Will output in CLI or MI like format depending | |
340 | on the type of output stream detected. OUT is the output stream, | |
341 | SYM_NAME is the name of the symbol. If SYM_NAME is populated then | |
342 | it must have an accompanying value in the parameter FV. FA is a | |
343 | frame argument structure. If FA is populated, both SYM_NAME and | |
344 | FV are ignored. OPTS contains the value printing options, | |
345 | ARGS_TYPE is an enumerator describing the argument format, | |
346 | PRINT_ARGS_FIELD is a flag which indicates if we output "ARGS=1" | |
347 | in MI output in commands where both arguments and locals are | |
6dddc817 DE |
348 | printed. Returns EXT_LANG_BT_ERROR on error, with any GDB exceptions |
349 | converted to a Python exception, or EXT_LANG_BT_OK on success. */ | |
1e611234 | 350 | |
6dddc817 | 351 | static enum ext_lang_bt_status |
1e611234 PM |
352 | py_print_single_arg (struct ui_out *out, |
353 | const char *sym_name, | |
354 | struct frame_arg *fa, | |
355 | struct value *fv, | |
356 | const struct value_print_options *opts, | |
6dddc817 | 357 | enum ext_lang_frame_args args_type, |
1e611234 PM |
358 | int print_args_field, |
359 | const struct language_defn *language) | |
360 | { | |
361 | struct value *val; | |
c75bd3a2 | 362 | enum ext_lang_bt_status retval = EXT_LANG_BT_OK; |
1e611234 PM |
363 | |
364 | if (fa != NULL) | |
365 | { | |
c75bd3a2 JK |
366 | if (fa->val == NULL && fa->error == NULL) |
367 | return EXT_LANG_BT_OK; | |
1e611234 PM |
368 | language = language_def (SYMBOL_LANGUAGE (fa->sym)); |
369 | val = fa->val; | |
370 | } | |
371 | else | |
372 | val = fv; | |
373 | ||
492d29ea | 374 | TRY |
1e611234 PM |
375 | { |
376 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); | |
377 | ||
378 | /* MI has varying rules for tuples, but generally if there is only | |
379 | one element in each item in the list, do not start a tuple. The | |
380 | exception is -stack-list-variables which emits an ARGS="1" field | |
381 | if the value is a frame argument. This is denoted in this | |
382 | function with PRINT_ARGS_FIELD which is flag from the caller to | |
383 | emit the ARGS field. */ | |
112e8700 | 384 | if (out->is_mi_like_p ()) |
1e611234 PM |
385 | { |
386 | if (print_args_field || args_type != NO_VALUES) | |
387 | make_cleanup_ui_out_tuple_begin_end (out, NULL); | |
388 | } | |
389 | ||
390 | annotate_arg_begin (); | |
391 | ||
392 | /* If frame argument is populated, check for entry-values and the | |
393 | entry value options. */ | |
394 | if (fa != NULL) | |
395 | { | |
396 | struct ui_file *stb; | |
397 | ||
398 | stb = mem_fileopen (); | |
399 | make_cleanup_ui_file_delete (stb); | |
400 | fprintf_symbol_filtered (stb, SYMBOL_PRINT_NAME (fa->sym), | |
401 | SYMBOL_LANGUAGE (fa->sym), | |
402 | DMGL_PARAMS | DMGL_ANSI); | |
403 | if (fa->entry_kind == print_entry_values_compact) | |
404 | { | |
405 | fputs_filtered ("=", stb); | |
406 | ||
407 | fprintf_symbol_filtered (stb, SYMBOL_PRINT_NAME (fa->sym), | |
408 | SYMBOL_LANGUAGE (fa->sym), | |
409 | DMGL_PARAMS | DMGL_ANSI); | |
410 | } | |
411 | if (fa->entry_kind == print_entry_values_only | |
412 | || fa->entry_kind == print_entry_values_compact) | |
413 | { | |
414 | fputs_filtered ("@entry", stb); | |
415 | } | |
112e8700 | 416 | out->field_stream ("name", stb); |
1e611234 PM |
417 | } |
418 | else | |
419 | /* Otherwise, just output the name. */ | |
112e8700 | 420 | out->field_string ("name", sym_name); |
1e611234 PM |
421 | |
422 | annotate_arg_name_end (); | |
423 | ||
112e8700 SM |
424 | if (! out->is_mi_like_p ()) |
425 | out->text ("="); | |
1e611234 PM |
426 | |
427 | if (print_args_field) | |
112e8700 | 428 | out->field_int ("arg", 1); |
1e611234 PM |
429 | |
430 | /* For MI print the type, but only for simple values. This seems | |
431 | weird, but this is how MI choose to format the various output | |
432 | types. */ | |
c75bd3a2 | 433 | if (args_type == MI_PRINT_SIMPLE_VALUES && val != NULL) |
1e611234 | 434 | { |
6dddc817 | 435 | if (py_print_type (out, val) == EXT_LANG_BT_ERROR) |
1e611234 | 436 | { |
c75bd3a2 | 437 | retval = EXT_LANG_BT_ERROR; |
1e611234 | 438 | do_cleanups (cleanups); |
1e611234 PM |
439 | } |
440 | } | |
441 | ||
9c6595ab | 442 | if (retval != EXT_LANG_BT_ERROR) |
1e611234 | 443 | { |
9c6595ab PA |
444 | if (val != NULL) |
445 | annotate_arg_value (value_type (val)); | |
446 | ||
447 | /* If the output is to the CLI, and the user option "set print | |
448 | frame-arguments" is set to none, just output "...". */ | |
112e8700 SM |
449 | if (! out->is_mi_like_p () && args_type == NO_VALUES) |
450 | out->field_string ("value", "..."); | |
9c6595ab | 451 | else |
1e611234 | 452 | { |
9c6595ab PA |
453 | /* Otherwise, print the value for both MI and the CLI, except |
454 | for the case of MI_PRINT_NO_VALUES. */ | |
455 | if (args_type != NO_VALUES) | |
1e611234 | 456 | { |
9c6595ab PA |
457 | if (val == NULL) |
458 | { | |
459 | gdb_assert (fa != NULL && fa->error != NULL); | |
112e8700 | 460 | out->field_fmt ("value", |
9c6595ab PA |
461 | _("<error reading variable: %s>"), |
462 | fa->error); | |
463 | } | |
464 | else if (py_print_value (out, val, opts, 0, args_type, language) | |
465 | == EXT_LANG_BT_ERROR) | |
466 | retval = EXT_LANG_BT_ERROR; | |
1e611234 PM |
467 | } |
468 | } | |
1e611234 | 469 | |
9c6595ab PA |
470 | do_cleanups (cleanups); |
471 | } | |
1e611234 | 472 | } |
492d29ea PA |
473 | CATCH (except, RETURN_MASK_ERROR) |
474 | { | |
475 | gdbpy_convert_exception (except); | |
476 | } | |
477 | END_CATCH | |
1e611234 | 478 | |
c75bd3a2 | 479 | return retval; |
1e611234 PM |
480 | } |
481 | ||
482 | /* Helper function to loop over frame arguments provided by the | |
483 | "frame_arguments" Python API. Elements in the iterator must | |
484 | conform to the "Symbol Value" interface. ITER is the Python | |
485 | iterable object, OUT is the output stream, ARGS_TYPE is an | |
486 | enumerator describing the argument format, PRINT_ARGS_FIELD is a | |
487 | flag which indicates if we output "ARGS=1" in MI output in commands | |
488 | where both arguments and locals are printed, and FRAME is the | |
6dddc817 DE |
489 | backing frame. Returns EXT_LANG_BT_ERROR on error, with any GDB |
490 | exceptions converted to a Python exception, or EXT_LANG_BT_OK on | |
1e611234 PM |
491 | success. */ |
492 | ||
6dddc817 | 493 | static enum ext_lang_bt_status |
1e611234 PM |
494 | enumerate_args (PyObject *iter, |
495 | struct ui_out *out, | |
6dddc817 | 496 | enum ext_lang_frame_args args_type, |
1e611234 PM |
497 | int print_args_field, |
498 | struct frame_info *frame) | |
499 | { | |
1e611234 | 500 | struct value_print_options opts; |
1e611234 PM |
501 | |
502 | get_user_print_options (&opts); | |
503 | ||
504 | if (args_type == CLI_SCALAR_VALUES) | |
505 | { | |
506 | /* True in "summary" mode, false otherwise. */ | |
507 | opts.summary = 1; | |
508 | } | |
509 | ||
510 | opts.deref_ref = 1; | |
511 | ||
492d29ea | 512 | TRY |
1e611234 PM |
513 | { |
514 | annotate_frame_args (); | |
515 | } | |
492d29ea | 516 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
517 | { |
518 | gdbpy_convert_exception (except); | |
06fc9bf7 | 519 | return EXT_LANG_BT_ERROR; |
1e611234 | 520 | } |
492d29ea | 521 | END_CATCH |
1e611234 PM |
522 | |
523 | /* Collect the first argument outside of the loop, so output of | |
524 | commas in the argument output is correct. At the end of the | |
525 | loop block collect another item from the iterator, and, if it is | |
526 | not null emit a comma. */ | |
06fc9bf7 | 527 | gdbpy_ref item (PyIter_Next (iter)); |
1e611234 | 528 | if (item == NULL && PyErr_Occurred ()) |
06fc9bf7 | 529 | return EXT_LANG_BT_ERROR; |
1e611234 | 530 | |
06fc9bf7 | 531 | while (item != NULL) |
1e611234 PM |
532 | { |
533 | const struct language_defn *language; | |
9b972014 | 534 | gdb::unique_xmalloc_ptr<char> sym_name; |
1e611234 | 535 | struct symbol *sym; |
63e43d3a | 536 | struct block *sym_block; |
1e611234 | 537 | struct value *val; |
6dddc817 | 538 | enum ext_lang_bt_status success = EXT_LANG_BT_ERROR; |
1e611234 | 539 | |
06fc9bf7 TT |
540 | success = extract_sym (item.get (), &sym_name, &sym, &sym_block, |
541 | &language); | |
6dddc817 | 542 | if (success == EXT_LANG_BT_ERROR) |
06fc9bf7 | 543 | return EXT_LANG_BT_ERROR; |
1e611234 | 544 | |
06fc9bf7 | 545 | success = extract_value (item.get (), &val); |
6dddc817 | 546 | if (success == EXT_LANG_BT_ERROR) |
06fc9bf7 | 547 | return EXT_LANG_BT_ERROR; |
1e611234 | 548 | |
112e8700 | 549 | if (sym && out->is_mi_like_p () |
1e611234 | 550 | && ! mi_should_print (sym, MI_PRINT_ARGS)) |
9b972014 | 551 | continue; |
1e611234 PM |
552 | |
553 | /* If the object did not provide a value, read it using | |
554 | read_frame_args and account for entry values, if any. */ | |
555 | if (val == NULL) | |
556 | { | |
557 | struct frame_arg arg, entryarg; | |
558 | ||
559 | /* If there is no value, and also no symbol, set error and | |
560 | exit. */ | |
561 | if (sym == NULL) | |
562 | { | |
563 | PyErr_SetString (PyExc_RuntimeError, | |
564 | _("No symbol or value provided.")); | |
06fc9bf7 | 565 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
566 | } |
567 | ||
492d29ea | 568 | TRY |
1e611234 PM |
569 | { |
570 | read_frame_arg (sym, frame, &arg, &entryarg); | |
571 | } | |
492d29ea | 572 | CATCH (except, RETURN_MASK_ALL) |
1e611234 | 573 | { |
1e611234 | 574 | gdbpy_convert_exception (except); |
06fc9bf7 | 575 | return EXT_LANG_BT_ERROR; |
1e611234 | 576 | } |
492d29ea | 577 | END_CATCH |
1e611234 PM |
578 | |
579 | /* The object has not provided a value, so this is a frame | |
580 | argument to be read by GDB. In this case we have to | |
581 | account for entry-values. */ | |
582 | ||
583 | if (arg.entry_kind != print_entry_values_only) | |
584 | { | |
585 | if (py_print_single_arg (out, NULL, &arg, | |
586 | NULL, &opts, | |
587 | args_type, | |
588 | print_args_field, | |
6dddc817 | 589 | NULL) == EXT_LANG_BT_ERROR) |
1e611234 PM |
590 | { |
591 | xfree (arg.error); | |
592 | xfree (entryarg.error); | |
06fc9bf7 | 593 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
594 | } |
595 | } | |
596 | ||
597 | if (entryarg.entry_kind != print_entry_values_no) | |
598 | { | |
599 | if (arg.entry_kind != print_entry_values_only) | |
600 | { | |
492d29ea | 601 | TRY |
1e611234 | 602 | { |
112e8700 SM |
603 | out->text (", "); |
604 | out->wrap_hint (" "); | |
1e611234 | 605 | } |
492d29ea | 606 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
607 | { |
608 | xfree (arg.error); | |
609 | xfree (entryarg.error); | |
1e611234 | 610 | gdbpy_convert_exception (except); |
06fc9bf7 | 611 | return EXT_LANG_BT_ERROR; |
1e611234 | 612 | } |
492d29ea | 613 | END_CATCH |
1e611234 PM |
614 | } |
615 | ||
6dddc817 DE |
616 | if (py_print_single_arg (out, NULL, &entryarg, NULL, &opts, |
617 | args_type, print_args_field, NULL) | |
618 | == EXT_LANG_BT_ERROR) | |
1e611234 | 619 | { |
06fc9bf7 TT |
620 | xfree (arg.error); |
621 | xfree (entryarg.error); | |
622 | return EXT_LANG_BT_ERROR; | |
1e611234 PM |
623 | } |
624 | } | |
625 | ||
626 | xfree (arg.error); | |
627 | xfree (entryarg.error); | |
628 | } | |
629 | else | |
630 | { | |
631 | /* If the object has provided a value, we just print that. */ | |
632 | if (val != NULL) | |
633 | { | |
9b972014 | 634 | if (py_print_single_arg (out, sym_name.get (), NULL, val, &opts, |
1e611234 | 635 | args_type, print_args_field, |
6dddc817 | 636 | language) == EXT_LANG_BT_ERROR) |
06fc9bf7 | 637 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
638 | } |
639 | } | |
640 | ||
1e611234 PM |
641 | /* Collect the next item from the iterator. If |
642 | this is the last item, do not print the | |
643 | comma. */ | |
06fc9bf7 | 644 | item.reset (PyIter_Next (iter)); |
1e611234 PM |
645 | if (item != NULL) |
646 | { | |
492d29ea | 647 | TRY |
1e611234 | 648 | { |
112e8700 | 649 | out->text (", "); |
1e611234 | 650 | } |
492d29ea | 651 | CATCH (except, RETURN_MASK_ALL) |
1e611234 | 652 | { |
1e611234 | 653 | gdbpy_convert_exception (except); |
06fc9bf7 | 654 | return EXT_LANG_BT_ERROR; |
1e611234 | 655 | } |
492d29ea | 656 | END_CATCH |
1e611234 PM |
657 | } |
658 | else if (PyErr_Occurred ()) | |
06fc9bf7 | 659 | return EXT_LANG_BT_ERROR; |
1e611234 | 660 | |
492d29ea | 661 | TRY |
1e611234 PM |
662 | { |
663 | annotate_arg_end (); | |
664 | } | |
492d29ea | 665 | CATCH (except, RETURN_MASK_ALL) |
1e611234 | 666 | { |
1e611234 | 667 | gdbpy_convert_exception (except); |
06fc9bf7 | 668 | return EXT_LANG_BT_ERROR; |
1e611234 | 669 | } |
492d29ea | 670 | END_CATCH |
1e611234 PM |
671 | } |
672 | ||
6dddc817 | 673 | return EXT_LANG_BT_OK; |
1e611234 PM |
674 | } |
675 | ||
676 | ||
677 | /* Helper function to loop over variables provided by the | |
678 | "frame_locals" Python API. Elements in the iterable must conform | |
679 | to the "Symbol Value" interface. ITER is the Python iterable | |
680 | object, OUT is the output stream, INDENT is whether we should | |
681 | indent the output (for CLI), ARGS_TYPE is an enumerator describing | |
682 | the argument format, PRINT_ARGS_FIELD is flag which indicates | |
683 | whether to output the ARGS field in the case of | |
684 | -stack-list-variables and FRAME is the backing frame. Returns | |
6dddc817 DE |
685 | EXT_LANG_BT_ERROR on error, with any GDB exceptions converted to a Python |
686 | exception, or EXT_LANG_BT_OK on success. */ | |
1e611234 | 687 | |
6dddc817 | 688 | static enum ext_lang_bt_status |
1e611234 PM |
689 | enumerate_locals (PyObject *iter, |
690 | struct ui_out *out, | |
691 | int indent, | |
6dddc817 | 692 | enum ext_lang_frame_args args_type, |
1e611234 PM |
693 | int print_args_field, |
694 | struct frame_info *frame) | |
695 | { | |
1e611234 PM |
696 | struct value_print_options opts; |
697 | ||
698 | get_user_print_options (&opts); | |
699 | opts.deref_ref = 1; | |
700 | ||
13df46cc | 701 | while (true) |
1e611234 PM |
702 | { |
703 | const struct language_defn *language; | |
9b972014 | 704 | gdb::unique_xmalloc_ptr<char> sym_name; |
1e611234 | 705 | struct value *val; |
6dddc817 | 706 | enum ext_lang_bt_status success = EXT_LANG_BT_ERROR; |
1e611234 | 707 | struct symbol *sym; |
63e43d3a | 708 | struct block *sym_block; |
1e611234 PM |
709 | int local_indent = 8 + (8 * indent); |
710 | struct cleanup *locals_cleanups; | |
711 | ||
13df46cc TT |
712 | gdbpy_ref item (PyIter_Next (iter)); |
713 | if (item == NULL) | |
714 | break; | |
1e611234 | 715 | |
13df46cc TT |
716 | locals_cleanups = make_cleanup (null_cleanup, NULL); |
717 | ||
718 | success = extract_sym (item.get (), &sym_name, &sym, &sym_block, | |
719 | &language); | |
6dddc817 | 720 | if (success == EXT_LANG_BT_ERROR) |
1e611234 PM |
721 | { |
722 | do_cleanups (locals_cleanups); | |
723 | goto error; | |
724 | } | |
725 | ||
13df46cc | 726 | success = extract_value (item.get (), &val); |
6dddc817 | 727 | if (success == EXT_LANG_BT_ERROR) |
1e611234 PM |
728 | { |
729 | do_cleanups (locals_cleanups); | |
730 | goto error; | |
731 | } | |
732 | ||
112e8700 | 733 | if (sym != NULL && out->is_mi_like_p () |
1e611234 PM |
734 | && ! mi_should_print (sym, MI_PRINT_LOCALS)) |
735 | { | |
736 | do_cleanups (locals_cleanups); | |
737 | continue; | |
738 | } | |
739 | ||
740 | /* If the object did not provide a value, read it. */ | |
741 | if (val == NULL) | |
742 | { | |
492d29ea | 743 | TRY |
1e611234 | 744 | { |
63e43d3a | 745 | val = read_var_value (sym, sym_block, frame); |
1e611234 | 746 | } |
492d29ea | 747 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
748 | { |
749 | gdbpy_convert_exception (except); | |
750 | do_cleanups (locals_cleanups); | |
751 | goto error; | |
752 | } | |
492d29ea | 753 | END_CATCH |
1e611234 PM |
754 | } |
755 | ||
756 | /* With PRINT_NO_VALUES, MI does not emit a tuple normally as | |
757 | each output contains only one field. The exception is | |
758 | -stack-list-variables, which always provides a tuple. */ | |
112e8700 | 759 | if (out->is_mi_like_p ()) |
1e611234 PM |
760 | { |
761 | if (print_args_field || args_type != NO_VALUES) | |
762 | make_cleanup_ui_out_tuple_begin_end (out, NULL); | |
763 | } | |
492d29ea | 764 | TRY |
1e611234 | 765 | { |
112e8700 | 766 | if (! out->is_mi_like_p ()) |
1e611234 PM |
767 | { |
768 | /* If the output is not MI we indent locals. */ | |
112e8700 | 769 | out->spaces (local_indent); |
1e611234 PM |
770 | } |
771 | ||
112e8700 | 772 | out->field_string ("name", sym_name.get ()); |
1e611234 | 773 | |
112e8700 SM |
774 | if (! out->is_mi_like_p ()) |
775 | out->text (" = "); | |
1e611234 | 776 | } |
492d29ea | 777 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
778 | { |
779 | gdbpy_convert_exception (except); | |
780 | do_cleanups (locals_cleanups); | |
781 | goto error; | |
782 | } | |
492d29ea | 783 | END_CATCH |
1e611234 PM |
784 | |
785 | if (args_type == MI_PRINT_SIMPLE_VALUES) | |
786 | { | |
6dddc817 | 787 | if (py_print_type (out, val) == EXT_LANG_BT_ERROR) |
1e611234 PM |
788 | { |
789 | do_cleanups (locals_cleanups); | |
790 | goto error; | |
791 | } | |
792 | } | |
793 | ||
794 | /* CLI always prints values for locals. MI uses the | |
795 | simple/no/all system. */ | |
112e8700 | 796 | if (! out->is_mi_like_p ()) |
1e611234 PM |
797 | { |
798 | int val_indent = (indent + 1) * 4; | |
799 | ||
800 | if (py_print_value (out, val, &opts, val_indent, args_type, | |
6dddc817 | 801 | language) == EXT_LANG_BT_ERROR) |
1e611234 PM |
802 | { |
803 | do_cleanups (locals_cleanups); | |
804 | goto error; | |
805 | } | |
806 | } | |
807 | else | |
808 | { | |
809 | if (args_type != NO_VALUES) | |
810 | { | |
811 | if (py_print_value (out, val, &opts, 0, args_type, | |
6dddc817 | 812 | language) == EXT_LANG_BT_ERROR) |
1e611234 PM |
813 | { |
814 | do_cleanups (locals_cleanups); | |
815 | goto error; | |
816 | } | |
817 | } | |
818 | } | |
819 | ||
820 | do_cleanups (locals_cleanups); | |
821 | ||
492d29ea | 822 | TRY |
1e611234 | 823 | { |
112e8700 | 824 | out->text ("\n"); |
1e611234 | 825 | } |
492d29ea | 826 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
827 | { |
828 | gdbpy_convert_exception (except); | |
829 | goto error; | |
830 | } | |
492d29ea | 831 | END_CATCH |
1e611234 PM |
832 | } |
833 | ||
13df46cc TT |
834 | if (!PyErr_Occurred ()) |
835 | return EXT_LANG_BT_OK; | |
1e611234 PM |
836 | |
837 | error: | |
6dddc817 | 838 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
839 | } |
840 | ||
6dddc817 DE |
841 | /* Helper function for -stack-list-variables. Returns EXT_LANG_BT_ERROR on |
842 | error, or EXT_LANG_BT_OK on success. */ | |
1e611234 | 843 | |
6dddc817 | 844 | static enum ext_lang_bt_status |
1e611234 PM |
845 | py_mi_print_variables (PyObject *filter, struct ui_out *out, |
846 | struct value_print_options *opts, | |
6dddc817 | 847 | enum ext_lang_frame_args args_type, |
1e611234 PM |
848 | struct frame_info *frame) |
849 | { | |
850 | struct cleanup *old_chain; | |
1e611234 | 851 | |
13df46cc | 852 | gdbpy_ref args_iter (get_py_iter_from_func (filter, "frame_args")); |
1e611234 | 853 | if (args_iter == NULL) |
13df46cc | 854 | return EXT_LANG_BT_ERROR; |
1e611234 | 855 | |
13df46cc | 856 | gdbpy_ref locals_iter (get_py_iter_from_func (filter, "frame_locals")); |
1e611234 | 857 | if (locals_iter == NULL) |
13df46cc | 858 | return EXT_LANG_BT_ERROR; |
1e611234 | 859 | |
13df46cc | 860 | old_chain = make_cleanup_ui_out_list_begin_end (out, "variables"); |
1e611234 PM |
861 | |
862 | if (args_iter != Py_None) | |
13df46cc | 863 | if (enumerate_args (args_iter.get (), out, args_type, 1, frame) |
6dddc817 | 864 | == EXT_LANG_BT_ERROR) |
1e611234 PM |
865 | goto error; |
866 | ||
867 | if (locals_iter != Py_None) | |
13df46cc | 868 | if (enumerate_locals (locals_iter.get (), out, 1, args_type, 1, frame) |
6dddc817 | 869 | == EXT_LANG_BT_ERROR) |
1e611234 PM |
870 | goto error; |
871 | ||
872 | do_cleanups (old_chain); | |
6dddc817 | 873 | return EXT_LANG_BT_OK; |
1e611234 PM |
874 | |
875 | error: | |
876 | do_cleanups (old_chain); | |
6dddc817 | 877 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
878 | } |
879 | ||
880 | /* Helper function for printing locals. This function largely just | |
881 | creates the wrapping tuple, and calls enumerate_locals. Returns | |
6dddc817 | 882 | EXT_LANG_BT_ERROR on error, or EXT_LANG_BT_OK on success. */ |
1e611234 | 883 | |
6dddc817 | 884 | static enum ext_lang_bt_status |
1e611234 PM |
885 | py_print_locals (PyObject *filter, |
886 | struct ui_out *out, | |
6dddc817 | 887 | enum ext_lang_frame_args args_type, |
1e611234 PM |
888 | int indent, |
889 | struct frame_info *frame) | |
890 | { | |
13df46cc | 891 | struct cleanup *old_chain; |
1e611234 | 892 | |
13df46cc | 893 | gdbpy_ref locals_iter (get_py_iter_from_func (filter, "frame_locals")); |
1e611234 | 894 | if (locals_iter == NULL) |
13df46cc | 895 | return EXT_LANG_BT_ERROR; |
1e611234 | 896 | |
13df46cc | 897 | old_chain = make_cleanup_ui_out_list_begin_end (out, "locals"); |
1e611234 PM |
898 | |
899 | if (locals_iter != Py_None) | |
13df46cc | 900 | if (enumerate_locals (locals_iter.get (), out, indent, args_type, |
6dddc817 | 901 | 0, frame) == EXT_LANG_BT_ERROR) |
1e611234 PM |
902 | goto locals_error; |
903 | ||
904 | do_cleanups (old_chain); | |
6dddc817 | 905 | return EXT_LANG_BT_OK; |
1e611234 PM |
906 | |
907 | locals_error: | |
908 | do_cleanups (old_chain); | |
6dddc817 | 909 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
910 | } |
911 | ||
912 | /* Helper function for printing frame arguments. This function | |
913 | largely just creates the wrapping tuple, and calls enumerate_args. | |
6dddc817 DE |
914 | Returns EXT_LANG_BT_ERROR on error, with any GDB exceptions converted to |
915 | a Python exception, or EXT_LANG_BT_OK on success. */ | |
1e611234 | 916 | |
6dddc817 | 917 | static enum ext_lang_bt_status |
1e611234 PM |
918 | py_print_args (PyObject *filter, |
919 | struct ui_out *out, | |
6dddc817 | 920 | enum ext_lang_frame_args args_type, |
1e611234 PM |
921 | struct frame_info *frame) |
922 | { | |
13df46cc | 923 | struct cleanup *old_chain; |
1e611234 | 924 | |
13df46cc | 925 | gdbpy_ref args_iter (get_py_iter_from_func (filter, "frame_args")); |
1e611234 | 926 | if (args_iter == NULL) |
13df46cc | 927 | return EXT_LANG_BT_ERROR; |
1e611234 | 928 | |
13df46cc | 929 | old_chain = make_cleanup_ui_out_list_begin_end (out, "args"); |
1e611234 | 930 | |
492d29ea | 931 | TRY |
1e611234 PM |
932 | { |
933 | annotate_frame_args (); | |
112e8700 SM |
934 | if (! out->is_mi_like_p ()) |
935 | out->text (" ("); | |
1e611234 | 936 | } |
492d29ea | 937 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
938 | { |
939 | gdbpy_convert_exception (except); | |
940 | goto args_error; | |
941 | } | |
492d29ea | 942 | END_CATCH |
1e611234 PM |
943 | |
944 | if (args_iter != Py_None) | |
13df46cc | 945 | if (enumerate_args (args_iter.get (), out, args_type, 0, frame) |
6dddc817 | 946 | == EXT_LANG_BT_ERROR) |
1e611234 PM |
947 | goto args_error; |
948 | ||
492d29ea | 949 | TRY |
1e611234 | 950 | { |
112e8700 SM |
951 | if (! out->is_mi_like_p ()) |
952 | out->text (")"); | |
1e611234 | 953 | } |
492d29ea | 954 | CATCH (except, RETURN_MASK_ALL) |
1e611234 PM |
955 | { |
956 | gdbpy_convert_exception (except); | |
957 | goto args_error; | |
958 | } | |
492d29ea | 959 | END_CATCH |
1e611234 PM |
960 | |
961 | do_cleanups (old_chain); | |
6dddc817 | 962 | return EXT_LANG_BT_OK; |
1e611234 PM |
963 | |
964 | args_error: | |
965 | do_cleanups (old_chain); | |
6dddc817 | 966 | return EXT_LANG_BT_ERROR; |
1e611234 PM |
967 | } |
968 | ||
969 | /* Print a single frame to the designated output stream, detecting | |
970 | whether the output is MI or console, and formatting the output | |
971 | according to the conventions of that protocol. FILTER is the | |
972 | frame-filter associated with this frame. FLAGS is an integer | |
973 | describing the various print options. The FLAGS variables is | |
974 | described in "apply_frame_filter" function. ARGS_TYPE is an | |
975 | enumerator describing the argument format. OUT is the output | |
976 | stream to print, INDENT is the level of indention for this frame | |
977 | (in the case of elided frames), and LEVELS_PRINTED is a hash-table | |
978 | containing all the frames level that have already been printed. | |
979 | If a frame level has been printed, do not print it again (in the | |
6dddc817 DE |
980 | case of elided frames). Returns EXT_LANG_BT_ERROR on error, with any |
981 | GDB exceptions converted to a Python exception, or EXT_LANG_BT_COMPLETED | |
b99bf4e3 | 982 | on success. It can also throw an exception RETURN_QUIT. */ |
1e611234 | 983 | |
6dddc817 DE |
984 | static enum ext_lang_bt_status |
985 | py_print_frame (PyObject *filter, int flags, | |
986 | enum ext_lang_frame_args args_type, | |
1e611234 PM |
987 | struct ui_out *out, int indent, htab_t levels_printed) |
988 | { | |
989 | int has_addr = 0; | |
990 | CORE_ADDR address = 0; | |
991 | struct gdbarch *gdbarch = NULL; | |
992 | struct frame_info *frame = NULL; | |
b99bf4e3 | 993 | struct cleanup *cleanup_stack; |
1e611234 | 994 | struct value_print_options opts; |
1e611234 | 995 | int print_level, print_frame_info, print_args, print_locals; |
9b972014 | 996 | gdb::unique_xmalloc_ptr<char> function_to_free; |
1e611234 PM |
997 | |
998 | /* Extract print settings from FLAGS. */ | |
999 | print_level = (flags & PRINT_LEVEL) ? 1 : 0; | |
1000 | print_frame_info = (flags & PRINT_FRAME_INFO) ? 1 : 0; | |
1001 | print_args = (flags & PRINT_ARGS) ? 1 : 0; | |
1002 | print_locals = (flags & PRINT_LOCALS) ? 1 : 0; | |
1003 | ||
1004 | get_user_print_options (&opts); | |
1005 | ||
1006 | /* Get the underlying frame. This is needed to determine GDB | |
1007 | architecture, and also, in the cases of frame variables/arguments to | |
1008 | read them if they returned filter object requires us to do so. */ | |
74c49d45 | 1009 | gdbpy_ref py_inf_frame (PyObject_CallMethod (filter, "inferior_frame", NULL)); |
1e611234 | 1010 | if (py_inf_frame == NULL) |
b99bf4e3 | 1011 | return EXT_LANG_BT_ERROR; |
1e611234 | 1012 | |
74c49d45 | 1013 | frame = frame_object_to_frame_info (py_inf_frame.get ()); |
1e611234 | 1014 | if (frame == NULL) |
b99bf4e3 | 1015 | return EXT_LANG_BT_ERROR; |
1e611234 | 1016 | |
492d29ea | 1017 | TRY |
1e611234 PM |
1018 | { |
1019 | gdbarch = get_frame_arch (frame); | |
1020 | } | |
492d29ea | 1021 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
1022 | { |
1023 | gdbpy_convert_exception (except); | |
800eb1ce | 1024 | return EXT_LANG_BT_ERROR; |
1e611234 | 1025 | } |
492d29ea | 1026 | END_CATCH |
1e611234 | 1027 | |
1e611234 PM |
1028 | /* stack-list-variables. */ |
1029 | if (print_locals && print_args && ! print_frame_info) | |
1030 | { | |
1031 | if (py_mi_print_variables (filter, out, &opts, | |
6dddc817 | 1032 | args_type, frame) == EXT_LANG_BT_ERROR) |
b99bf4e3 | 1033 | return EXT_LANG_BT_ERROR; |
34019068 | 1034 | return EXT_LANG_BT_COMPLETED; |
1e611234 PM |
1035 | } |
1036 | ||
b99bf4e3 JK |
1037 | cleanup_stack = make_cleanup (null_cleanup, NULL); |
1038 | ||
1e611234 PM |
1039 | /* -stack-list-locals does not require a |
1040 | wrapping frame attribute. */ | |
1041 | if (print_frame_info || (print_args && ! print_locals)) | |
1042 | make_cleanup_ui_out_tuple_begin_end (out, "frame"); | |
1043 | ||
1044 | if (print_frame_info) | |
1045 | { | |
1046 | /* Elided frames are also printed with this function (recursively) | |
1047 | and are printed with indention. */ | |
1048 | if (indent > 0) | |
1049 | { | |
492d29ea | 1050 | TRY |
8d4a54e2 | 1051 | { |
112e8700 | 1052 | out->spaces (indent * 4); |
8d4a54e2 | 1053 | } |
492d29ea | 1054 | CATCH (except, RETURN_MASK_ERROR) |
8d4a54e2 JK |
1055 | { |
1056 | gdbpy_convert_exception (except); | |
800eb1ce JK |
1057 | do_cleanups (cleanup_stack); |
1058 | return EXT_LANG_BT_ERROR; | |
8d4a54e2 | 1059 | } |
492d29ea | 1060 | END_CATCH |
1e611234 PM |
1061 | } |
1062 | ||
1063 | /* The address is required for frame annotations, and also for | |
1064 | address printing. */ | |
1065 | if (PyObject_HasAttrString (filter, "address")) | |
1066 | { | |
74c49d45 | 1067 | gdbpy_ref paddr (PyObject_CallMethod (filter, "address", NULL)); |
34019068 JK |
1068 | |
1069 | if (paddr == NULL) | |
800eb1ce JK |
1070 | { |
1071 | do_cleanups (cleanup_stack); | |
1072 | return EXT_LANG_BT_ERROR; | |
1073 | } | |
34019068 JK |
1074 | |
1075 | if (paddr != Py_None) | |
1e611234 | 1076 | { |
74c49d45 | 1077 | if (get_addr_from_python (paddr.get (), &address) < 0) |
30a7bb83 | 1078 | { |
30a7bb83 TT |
1079 | do_cleanups (cleanup_stack); |
1080 | return EXT_LANG_BT_ERROR; | |
1081 | } | |
1082 | ||
34019068 | 1083 | has_addr = 1; |
1e611234 | 1084 | } |
1e611234 PM |
1085 | } |
1086 | } | |
1087 | ||
1088 | /* Print frame level. MI does not require the level if | |
1089 | locals/variables only are being printed. */ | |
1090 | if ((print_frame_info || print_args) && print_level) | |
1091 | { | |
1092 | struct frame_info **slot; | |
1093 | int level; | |
1e611234 PM |
1094 | |
1095 | slot = (struct frame_info **) htab_find_slot (levels_printed, | |
1096 | frame, INSERT); | |
492d29ea | 1097 | TRY |
1e611234 PM |
1098 | { |
1099 | level = frame_relative_level (frame); | |
1100 | ||
1101 | /* Check if this frame has already been printed (there are cases | |
1102 | where elided synthetic dummy-frames have to 'borrow' the frame | |
1103 | architecture from the eliding frame. If that is the case, do | |
1104 | not print 'level', but print spaces. */ | |
1105 | if (*slot == frame) | |
112e8700 | 1106 | out->field_skip ("level"); |
1e611234 PM |
1107 | else |
1108 | { | |
1109 | *slot = frame; | |
1110 | annotate_frame_begin (print_level ? level : 0, | |
1111 | gdbarch, address); | |
112e8700 SM |
1112 | out->text ("#"); |
1113 | out->field_fmt_int (2, ui_left, "level", | |
1e611234 PM |
1114 | level); |
1115 | } | |
1116 | } | |
492d29ea | 1117 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
1118 | { |
1119 | gdbpy_convert_exception (except); | |
800eb1ce JK |
1120 | do_cleanups (cleanup_stack); |
1121 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1122 | } |
492d29ea | 1123 | END_CATCH |
1e611234 PM |
1124 | } |
1125 | ||
1126 | if (print_frame_info) | |
1127 | { | |
1128 | /* Print address to the address field. If an address is not provided, | |
1129 | print nothing. */ | |
1130 | if (opts.addressprint && has_addr) | |
1131 | { | |
492d29ea | 1132 | TRY |
1e611234 PM |
1133 | { |
1134 | annotate_frame_address (); | |
112e8700 | 1135 | out->field_core_addr ("addr", gdbarch, address); |
1e611234 | 1136 | annotate_frame_address_end (); |
112e8700 | 1137 | out->text (" in "); |
1e611234 | 1138 | } |
492d29ea | 1139 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
1140 | { |
1141 | gdbpy_convert_exception (except); | |
800eb1ce JK |
1142 | do_cleanups (cleanup_stack); |
1143 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1144 | } |
492d29ea | 1145 | END_CATCH |
1e611234 PM |
1146 | } |
1147 | ||
1148 | /* Print frame function name. */ | |
1149 | if (PyObject_HasAttrString (filter, "function")) | |
1150 | { | |
3b4e0e01 | 1151 | gdbpy_ref py_func (PyObject_CallMethod (filter, "function", NULL)); |
34019068 | 1152 | const char *function = NULL; |
1e611234 | 1153 | |
34019068 | 1154 | if (py_func == NULL) |
800eb1ce JK |
1155 | { |
1156 | do_cleanups (cleanup_stack); | |
1157 | return EXT_LANG_BT_ERROR; | |
1158 | } | |
1e611234 | 1159 | |
3b4e0e01 | 1160 | if (gdbpy_is_string (py_func.get ())) |
34019068 | 1161 | { |
3b4e0e01 | 1162 | function_to_free = python_string_to_host_string (py_func.get ()); |
1e611234 | 1163 | |
9b972014 | 1164 | if (function_to_free == NULL) |
1e611234 | 1165 | { |
800eb1ce JK |
1166 | do_cleanups (cleanup_stack); |
1167 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1168 | } |
9b972014 TT |
1169 | |
1170 | function = function_to_free.get (); | |
34019068 | 1171 | } |
3b4e0e01 | 1172 | else if (PyLong_Check (py_func.get ())) |
34019068 | 1173 | { |
30a7bb83 | 1174 | CORE_ADDR addr; |
34019068 | 1175 | struct bound_minimal_symbol msymbol; |
1e611234 | 1176 | |
3b4e0e01 | 1177 | if (get_addr_from_python (py_func.get (), &addr) < 0) |
800eb1ce JK |
1178 | { |
1179 | do_cleanups (cleanup_stack); | |
1180 | return EXT_LANG_BT_ERROR; | |
1181 | } | |
34019068 JK |
1182 | |
1183 | msymbol = lookup_minimal_symbol_by_pc (addr); | |
1184 | if (msymbol.minsym != NULL) | |
1185 | function = MSYMBOL_PRINT_NAME (msymbol.minsym); | |
1186 | } | |
1187 | else if (py_func != Py_None) | |
1188 | { | |
1189 | PyErr_SetString (PyExc_RuntimeError, | |
1190 | _("FrameDecorator.function: expecting a " \ | |
1191 | "String, integer or None.")); | |
800eb1ce JK |
1192 | do_cleanups (cleanup_stack); |
1193 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1194 | } |
34019068 | 1195 | |
492d29ea | 1196 | TRY |
34019068 JK |
1197 | { |
1198 | annotate_frame_function_name (); | |
1199 | if (function == NULL) | |
112e8700 | 1200 | out->field_skip ("func"); |
34019068 | 1201 | else |
112e8700 | 1202 | out->field_string ("func", function); |
34019068 | 1203 | } |
492d29ea | 1204 | CATCH (except, RETURN_MASK_ERROR) |
34019068 | 1205 | { |
34019068 | 1206 | gdbpy_convert_exception (except); |
800eb1ce JK |
1207 | do_cleanups (cleanup_stack); |
1208 | return EXT_LANG_BT_ERROR; | |
34019068 | 1209 | } |
492d29ea | 1210 | END_CATCH |
1e611234 | 1211 | } |
1e611234 PM |
1212 | } |
1213 | ||
1214 | ||
1215 | /* Frame arguments. Check the result, and error if something went | |
1216 | wrong. */ | |
1217 | if (print_args) | |
1218 | { | |
6dddc817 | 1219 | if (py_print_args (filter, out, args_type, frame) == EXT_LANG_BT_ERROR) |
800eb1ce JK |
1220 | { |
1221 | do_cleanups (cleanup_stack); | |
1222 | return EXT_LANG_BT_ERROR; | |
1223 | } | |
1e611234 PM |
1224 | } |
1225 | ||
1226 | /* File name/source/line number information. */ | |
1227 | if (print_frame_info) | |
1228 | { | |
492d29ea | 1229 | TRY |
1e611234 PM |
1230 | { |
1231 | annotate_frame_source_begin (); | |
1232 | } | |
492d29ea | 1233 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
1234 | { |
1235 | gdbpy_convert_exception (except); | |
800eb1ce JK |
1236 | do_cleanups (cleanup_stack); |
1237 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1238 | } |
492d29ea | 1239 | END_CATCH |
1e611234 PM |
1240 | |
1241 | if (PyObject_HasAttrString (filter, "filename")) | |
1242 | { | |
3b4e0e01 | 1243 | gdbpy_ref py_fn (PyObject_CallMethod (filter, "filename", NULL)); |
8d4a54e2 | 1244 | |
34019068 | 1245 | if (py_fn == NULL) |
800eb1ce JK |
1246 | { |
1247 | do_cleanups (cleanup_stack); | |
1248 | return EXT_LANG_BT_ERROR; | |
1249 | } | |
34019068 JK |
1250 | |
1251 | if (py_fn != Py_None) | |
1e611234 | 1252 | { |
9b972014 | 1253 | gdb::unique_xmalloc_ptr<char> |
3b4e0e01 | 1254 | filename (python_string_to_host_string (py_fn.get ())); |
1e611234 | 1255 | |
34019068 JK |
1256 | if (filename == NULL) |
1257 | { | |
800eb1ce JK |
1258 | do_cleanups (cleanup_stack); |
1259 | return EXT_LANG_BT_ERROR; | |
34019068 | 1260 | } |
8f28f522 | 1261 | |
492d29ea | 1262 | TRY |
34019068 | 1263 | { |
112e8700 SM |
1264 | out->wrap_hint (" "); |
1265 | out->text (" at "); | |
34019068 | 1266 | annotate_frame_source_file (); |
112e8700 | 1267 | out->field_string ("file", filename.get ()); |
34019068 JK |
1268 | annotate_frame_source_file_end (); |
1269 | } | |
492d29ea | 1270 | CATCH (except, RETURN_MASK_ERROR) |
34019068 | 1271 | { |
34019068 | 1272 | gdbpy_convert_exception (except); |
800eb1ce JK |
1273 | do_cleanups (cleanup_stack); |
1274 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1275 | } |
492d29ea | 1276 | END_CATCH |
1e611234 | 1277 | } |
1e611234 PM |
1278 | } |
1279 | ||
1280 | if (PyObject_HasAttrString (filter, "line")) | |
1281 | { | |
3b4e0e01 | 1282 | gdbpy_ref py_line (PyObject_CallMethod (filter, "line", NULL)); |
1e611234 PM |
1283 | int line; |
1284 | ||
34019068 | 1285 | if (py_line == NULL) |
800eb1ce JK |
1286 | { |
1287 | do_cleanups (cleanup_stack); | |
1288 | return EXT_LANG_BT_ERROR; | |
1289 | } | |
34019068 JK |
1290 | |
1291 | if (py_line != Py_None) | |
1e611234 | 1292 | { |
3b4e0e01 | 1293 | line = PyLong_AsLong (py_line.get ()); |
30a7bb83 TT |
1294 | if (PyErr_Occurred ()) |
1295 | { | |
1296 | do_cleanups (cleanup_stack); | |
1297 | return EXT_LANG_BT_ERROR; | |
1298 | } | |
1299 | ||
492d29ea | 1300 | TRY |
1e611234 | 1301 | { |
112e8700 | 1302 | out->text (":"); |
34019068 | 1303 | annotate_frame_source_line (); |
112e8700 | 1304 | out->field_int ("line", line); |
34019068 | 1305 | } |
492d29ea | 1306 | CATCH (except, RETURN_MASK_ERROR) |
34019068 | 1307 | { |
34019068 | 1308 | gdbpy_convert_exception (except); |
800eb1ce JK |
1309 | do_cleanups (cleanup_stack); |
1310 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1311 | } |
492d29ea | 1312 | END_CATCH |
1e611234 | 1313 | } |
1e611234 PM |
1314 | } |
1315 | } | |
1316 | ||
1317 | /* For MI we need to deal with the "children" list population of | |
1318 | elided frames, so if MI output detected do not send newline. */ | |
112e8700 | 1319 | if (! out->is_mi_like_p ()) |
1e611234 | 1320 | { |
492d29ea | 1321 | TRY |
1e611234 PM |
1322 | { |
1323 | annotate_frame_end (); | |
112e8700 | 1324 | out->text ("\n"); |
1e611234 | 1325 | } |
492d29ea | 1326 | CATCH (except, RETURN_MASK_ERROR) |
1e611234 PM |
1327 | { |
1328 | gdbpy_convert_exception (except); | |
800eb1ce JK |
1329 | do_cleanups (cleanup_stack); |
1330 | return EXT_LANG_BT_ERROR; | |
1e611234 | 1331 | } |
492d29ea | 1332 | END_CATCH |
1e611234 PM |
1333 | } |
1334 | ||
1335 | if (print_locals) | |
1336 | { | |
1337 | if (py_print_locals (filter, out, args_type, indent, | |
6dddc817 | 1338 | frame) == EXT_LANG_BT_ERROR) |
800eb1ce JK |
1339 | { |
1340 | do_cleanups (cleanup_stack); | |
1341 | return EXT_LANG_BT_ERROR; | |
1342 | } | |
1e611234 PM |
1343 | } |
1344 | ||
34019068 | 1345 | { |
34019068 | 1346 | /* Finally recursively print elided frames, if any. */ |
3b4e0e01 | 1347 | gdbpy_ref elided (get_py_iter_from_func (filter, "elided")); |
34019068 | 1348 | if (elided == NULL) |
800eb1ce JK |
1349 | { |
1350 | do_cleanups (cleanup_stack); | |
1351 | return EXT_LANG_BT_ERROR; | |
1352 | } | |
1e611234 | 1353 | |
34019068 JK |
1354 | if (elided != Py_None) |
1355 | { | |
1356 | PyObject *item; | |
1e611234 | 1357 | |
34019068 | 1358 | make_cleanup_ui_out_list_begin_end (out, "children"); |
1e611234 | 1359 | |
112e8700 | 1360 | if (! out->is_mi_like_p ()) |
34019068 | 1361 | indent++; |
1e611234 | 1362 | |
3b4e0e01 | 1363 | while ((item = PyIter_Next (elided.get ()))) |
34019068 | 1364 | { |
3b4e0e01 | 1365 | gdbpy_ref item_ref (item); |
b99bf4e3 | 1366 | |
34019068 JK |
1367 | enum ext_lang_bt_status success = py_print_frame (item, flags, |
1368 | args_type, out, | |
1369 | indent, | |
1370 | levels_printed); | |
1e611234 | 1371 | |
34019068 JK |
1372 | if (success == EXT_LANG_BT_ERROR) |
1373 | { | |
800eb1ce JK |
1374 | do_cleanups (cleanup_stack); |
1375 | return EXT_LANG_BT_ERROR; | |
34019068 | 1376 | } |
34019068 JK |
1377 | } |
1378 | if (item == NULL && PyErr_Occurred ()) | |
800eb1ce JK |
1379 | { |
1380 | do_cleanups (cleanup_stack); | |
1381 | return EXT_LANG_BT_ERROR; | |
1382 | } | |
34019068 | 1383 | } |
b99bf4e3 | 1384 | } |
1e611234 PM |
1385 | |
1386 | do_cleanups (cleanup_stack); | |
6dddc817 | 1387 | return EXT_LANG_BT_COMPLETED; |
1e611234 PM |
1388 | } |
1389 | ||
1390 | /* Helper function to initiate frame filter invocation at starting | |
1391 | frame FRAME. */ | |
1392 | ||
1393 | static PyObject * | |
1394 | bootstrap_python_frame_filters (struct frame_info *frame, | |
1395 | int frame_low, int frame_high) | |
1396 | { | |
ee0a3fb8 | 1397 | gdbpy_ref frame_obj (frame_info_to_frame_object (frame)); |
1e611234 | 1398 | if (frame_obj == NULL) |
ee0a3fb8 | 1399 | return NULL; |
1e611234 | 1400 | |
ee0a3fb8 | 1401 | gdbpy_ref module (PyImport_ImportModule ("gdb.frames")); |
1e611234 | 1402 | if (module == NULL) |
ee0a3fb8 | 1403 | return NULL; |
1e611234 | 1404 | |
ee0a3fb8 TT |
1405 | gdbpy_ref sort_func (PyObject_GetAttrString (module.get (), |
1406 | "execute_frame_filters")); | |
1e611234 | 1407 | if (sort_func == NULL) |
ee0a3fb8 | 1408 | return NULL; |
1e611234 | 1409 | |
ee0a3fb8 | 1410 | gdbpy_ref py_frame_low (PyInt_FromLong (frame_low)); |
1e611234 | 1411 | if (py_frame_low == NULL) |
ee0a3fb8 | 1412 | return NULL; |
1e611234 | 1413 | |
ee0a3fb8 | 1414 | gdbpy_ref py_frame_high (PyInt_FromLong (frame_high)); |
1e611234 | 1415 | if (py_frame_high == NULL) |
ee0a3fb8 | 1416 | return NULL; |
1e611234 | 1417 | |
ee0a3fb8 TT |
1418 | gdbpy_ref iterable (PyObject_CallFunctionObjArgs (sort_func.get (), |
1419 | frame_obj.get (), | |
1420 | py_frame_low.get (), | |
1421 | py_frame_high.get (), | |
1422 | NULL)); | |
1e611234 | 1423 | if (iterable == NULL) |
ee0a3fb8 | 1424 | return NULL; |
1e611234 PM |
1425 | |
1426 | if (iterable != Py_None) | |
ee0a3fb8 | 1427 | return PyObject_GetIter (iterable.get ()); |
1e611234 | 1428 | else |
ee0a3fb8 | 1429 | return iterable.release (); |
1e611234 PM |
1430 | } |
1431 | ||
1432 | /* This is the only publicly exported function in this file. FRAME | |
1433 | is the source frame to start frame-filter invocation. FLAGS is an | |
1434 | integer holding the flags for printing. The following elements of | |
1435 | the FRAME_FILTER_FLAGS enum denotes the make-up of FLAGS: | |
1436 | PRINT_LEVEL is a flag indicating whether to print the frame's | |
1437 | relative level in the output. PRINT_FRAME_INFO is a flag that | |
1438 | indicates whether this function should print the frame | |
1439 | information, PRINT_ARGS is a flag that indicates whether to print | |
1440 | frame arguments, and PRINT_LOCALS, likewise, with frame local | |
1441 | variables. ARGS_TYPE is an enumerator describing the argument | |
1442 | format, OUT is the output stream to print. FRAME_LOW is the | |
1443 | beginning of the slice of frames to print, and FRAME_HIGH is the | |
6dddc817 DE |
1444 | upper limit of the frames to count. Returns EXT_LANG_BT_ERROR on error, |
1445 | or EXT_LANG_BT_COMPLETED on success. */ | |
1446 | ||
1447 | enum ext_lang_bt_status | |
1448 | gdbpy_apply_frame_filter (const struct extension_language_defn *extlang, | |
1449 | struct frame_info *frame, int flags, | |
1450 | enum ext_lang_frame_args args_type, | |
1451 | struct ui_out *out, int frame_low, int frame_high) | |
1e611234 PM |
1452 | { |
1453 | struct gdbarch *gdbarch = NULL; | |
6dddc817 | 1454 | enum ext_lang_bt_status success = EXT_LANG_BT_ERROR; |
1e611234 | 1455 | |
8ee002df | 1456 | if (!gdb_python_initialized) |
6dddc817 | 1457 | return EXT_LANG_BT_NO_FILTERS; |
8ee002df | 1458 | |
492d29ea | 1459 | TRY |
1e611234 PM |
1460 | { |
1461 | gdbarch = get_frame_arch (frame); | |
1462 | } | |
492d29ea | 1463 | CATCH (except, RETURN_MASK_ALL) |
1e611234 | 1464 | { |
21909fa1 | 1465 | /* Let gdb try to print the stack trace. */ |
6dddc817 | 1466 | return EXT_LANG_BT_NO_FILTERS; |
1e611234 | 1467 | } |
492d29ea | 1468 | END_CATCH |
1e611234 | 1469 | |
6349f452 | 1470 | gdbpy_enter enter_py (gdbarch, current_language); |
21909fa1 | 1471 | |
6349f452 TT |
1472 | gdbpy_ref iterable (bootstrap_python_frame_filters (frame, frame_low, |
1473 | frame_high)); | |
1e611234 PM |
1474 | |
1475 | if (iterable == NULL) | |
8ee002df PM |
1476 | { |
1477 | /* Normally if there is an error GDB prints the exception, | |
1478 | abandons the backtrace and exits. The user can then call "bt | |
1479 | no-filters", and get a default backtrace (it would be | |
1480 | confusing to automatically start a standard backtrace halfway | |
1481 | through a Python filtered backtrace). However in the case | |
1482 | where GDB cannot initialize the frame filters (most likely | |
1483 | due to incorrect auto-load paths), GDB has printed nothing. | |
1484 | In this case it is OK to print the default backtrace after | |
6dddc817 | 1485 | printing the error message. GDB returns EXT_LANG_BT_NO_FILTERS |
8ee002df PM |
1486 | here to signify there are no filters after printing the |
1487 | initialization error. This return code will trigger a | |
1488 | default backtrace. */ | |
1489 | ||
1490 | gdbpy_print_stack (); | |
6dddc817 | 1491 | return EXT_LANG_BT_NO_FILTERS; |
8ee002df | 1492 | } |
1e611234 PM |
1493 | |
1494 | /* If iterable is None, then there are no frame filters registered. | |
1495 | If this is the case, defer to default GDB printing routines in MI | |
1496 | and CLI. */ | |
1e611234 | 1497 | if (iterable == Py_None) |
6349f452 | 1498 | return EXT_LANG_BT_NO_FILTERS; |
1e611234 | 1499 | |
6349f452 TT |
1500 | htab_up levels_printed (htab_create (20, |
1501 | htab_hash_pointer, | |
1502 | htab_eq_pointer, | |
1503 | NULL)); | |
1e611234 | 1504 | |
6349f452 | 1505 | while (true) |
1e611234 | 1506 | { |
6349f452 | 1507 | gdbpy_ref item (PyIter_Next (iterable.get ())); |
b99bf4e3 | 1508 | |
6349f452 TT |
1509 | if (item == NULL) |
1510 | { | |
1511 | if (PyErr_Occurred ()) | |
1512 | { | |
1513 | gdbpy_print_stack (); | |
1514 | return EXT_LANG_BT_ERROR; | |
1515 | } | |
1516 | break; | |
1517 | } | |
1e611234 | 1518 | |
6349f452 TT |
1519 | success = py_print_frame (item.get (), flags, args_type, out, 0, |
1520 | levels_printed.get ()); | |
b99bf4e3 | 1521 | |
1e611234 PM |
1522 | /* Do not exit on error printing a single frame. Print the |
1523 | error and continue with other frames. */ | |
6dddc817 | 1524 | if (success == EXT_LANG_BT_ERROR) |
1e611234 | 1525 | gdbpy_print_stack (); |
1e611234 PM |
1526 | } |
1527 | ||
1e611234 | 1528 | return success; |
1e611234 | 1529 | } |