Commit | Line | Data |
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373a8247 | 1 | /* Support for printing Pascal values for GDB, the GNU debugger. |
5bcca90b | 2 | |
b811d2c2 | 3 | Copyright (C) 2000-2020 Free Software Foundation, Inc. |
373a8247 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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
373a8247 PM |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
373a8247 PM |
19 | |
20 | /* This file is derived from c-valprint.c */ | |
21 | ||
22 | #include "defs.h" | |
04ea0df1 | 23 | #include "gdb_obstack.h" |
373a8247 PM |
24 | #include "symtab.h" |
25 | #include "gdbtypes.h" | |
26 | #include "expression.h" | |
27 | #include "value.h" | |
28 | #include "command.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "gdbcore.h" | |
31 | #include "demangle.h" | |
32 | #include "valprint.h" | |
3172dc30 | 33 | #include "typeprint.h" |
373a8247 PM |
34 | #include "language.h" |
35 | #include "target.h" | |
36 | #include "annotate.h" | |
37 | #include "p-lang.h" | |
eb43544b | 38 | #include "cp-abi.h" |
d3cbe7ef | 39 | #include "cp-support.h" |
77e371c0 | 40 | #include "objfiles.h" |
268a13a5 | 41 | #include "gdbsupport/byte-vector.h" |
7f6aba03 | 42 | #include "cli/cli-style.h" |
373a8247 PM |
43 | \f |
44 | ||
1e592a8a TT |
45 | static void pascal_object_print_value_fields (struct type *, const gdb_byte *, |
46 | LONGEST, | |
47 | CORE_ADDR, struct ui_file *, | |
48 | int, | |
49 | struct value *, | |
50 | const struct value_print_options *, | |
51 | struct type **, int); | |
52 | ||
07a32858 TT |
53 | static void pascal_object_print_value_fields (struct value *, struct ui_file *, |
54 | int, | |
55 | const struct value_print_options *, | |
56 | struct type **, int); | |
57 | ||
e88acd96 TT |
58 | /* Decorations for Pascal. */ |
59 | ||
60 | static const struct generic_val_print_decorations p_decorations = | |
61 | { | |
62 | "", | |
63 | " + ", | |
64 | " * I", | |
65 | "true", | |
66 | "false", | |
00272ec4 TT |
67 | "void", |
68 | "{", | |
69 | "}" | |
e88acd96 TT |
70 | }; |
71 | ||
32b72a42 | 72 | /* See val_print for a description of the various parameters of this |
d3eab38a | 73 | function; they are identical. */ |
373a8247 | 74 | |
d3eab38a | 75 | void |
e8b24d9f | 76 | pascal_val_print (struct type *type, |
a2bd3dcd | 77 | int embedded_offset, CORE_ADDR address, |
79a45b7d | 78 | struct ui_file *stream, int recurse, |
e8b24d9f | 79 | struct value *original_value, |
79a45b7d | 80 | const struct value_print_options *options) |
373a8247 | 81 | { |
5af949e3 | 82 | struct gdbarch *gdbarch = get_type_arch (type); |
34877895 | 83 | enum bfd_endian byte_order = type_byte_order (type); |
52f0bd74 | 84 | unsigned int i = 0; /* Number of characters printed */ |
373a8247 PM |
85 | unsigned len; |
86 | struct type *elttype; | |
87 | unsigned eltlen; | |
5598ce11 | 88 | int length_pos, length_size, string_pos; |
6c7a06a3 | 89 | struct type *char_type; |
373a8247 | 90 | CORE_ADDR addr; |
b012acdd | 91 | int want_space = 0; |
e8b24d9f | 92 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
373a8247 | 93 | |
f168693b | 94 | type = check_typedef (type); |
373a8247 PM |
95 | switch (TYPE_CODE (type)) |
96 | { | |
97 | case TYPE_CODE_ARRAY: | |
b926417a TT |
98 | { |
99 | LONGEST low_bound, high_bound; | |
373a8247 | 100 | |
b926417a TT |
101 | if (get_array_bounds (type, &low_bound, &high_bound)) |
102 | { | |
103 | len = high_bound - low_bound + 1; | |
104 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
105 | eltlen = TYPE_LENGTH (elttype); | |
106 | if (options->prettyformat_arrays) | |
107 | { | |
108 | print_spaces_filtered (2 + 2 * recurse, stream); | |
109 | } | |
110 | /* If 's' format is used, try to print out as string. | |
111 | If no format is given, print as string if element type | |
112 | is of TYPE_CODE_CHAR and element size is 1,2 or 4. */ | |
113 | if (options->format == 's' | |
114 | || ((eltlen == 1 || eltlen == 2 || eltlen == 4) | |
115 | && TYPE_CODE (elttype) == TYPE_CODE_CHAR | |
116 | && options->format == 0)) | |
117 | { | |
118 | /* If requested, look for the first null char and only print | |
119 | elements up to it. */ | |
120 | if (options->stop_print_at_null) | |
121 | { | |
122 | unsigned int temp_len; | |
123 | ||
124 | /* Look for a NULL char. */ | |
125 | for (temp_len = 0; | |
126 | extract_unsigned_integer (valaddr + embedded_offset + | |
127 | temp_len * eltlen, eltlen, | |
128 | byte_order) | |
129 | && temp_len < len && temp_len < options->print_max; | |
130 | temp_len++); | |
131 | len = temp_len; | |
132 | } | |
133 | ||
134 | LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type), | |
135 | valaddr + embedded_offset, len, NULL, 0, | |
136 | options); | |
137 | i = len; | |
138 | } | |
139 | else | |
140 | { | |
141 | fprintf_filtered (stream, "{"); | |
142 | /* If this is a virtual function table, print the 0th | |
143 | entry specially, and the rest of the members normally. */ | |
144 | if (pascal_object_is_vtbl_ptr_type (elttype)) | |
145 | { | |
146 | i = 1; | |
147 | fprintf_filtered (stream, "%d vtable entries", len - 1); | |
148 | } | |
149 | else | |
150 | { | |
151 | i = 0; | |
152 | } | |
153 | val_print_array_elements (type, embedded_offset, | |
154 | address, stream, recurse, | |
155 | original_value, options, i); | |
156 | fprintf_filtered (stream, "}"); | |
157 | } | |
158 | break; | |
159 | } | |
160 | /* Array of unspecified length: treat like pointer to first elt. */ | |
161 | addr = address + embedded_offset; | |
162 | } | |
373a8247 PM |
163 | goto print_unpacked_pointer; |
164 | ||
165 | case TYPE_CODE_PTR: | |
79a45b7d | 166 | if (options->format && options->format != 's') |
373a8247 | 167 | { |
e8b24d9f | 168 | val_print_scalar_formatted (type, embedded_offset, |
ab2188aa | 169 | original_value, options, 0, stream); |
373a8247 PM |
170 | break; |
171 | } | |
79a45b7d | 172 | if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type)) |
373a8247 PM |
173 | { |
174 | /* Print the unmangled name if desired. */ | |
175 | /* Print vtable entry - we only get here if we ARE using | |
0df8b418 | 176 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */ |
b276f1bb | 177 | /* Extract the address, assume that it is unsigned. */ |
e17a4113 UW |
178 | addr = extract_unsigned_integer (valaddr + embedded_offset, |
179 | TYPE_LENGTH (type), byte_order); | |
edf0c1b7 | 180 | print_address_demangle (options, gdbarch, addr, stream, demangle); |
373a8247 PM |
181 | break; |
182 | } | |
91e8df85 | 183 | check_typedef (TYPE_TARGET_TYPE (type)); |
e13eedd5 PM |
184 | |
185 | addr = unpack_pointer (type, valaddr + embedded_offset); | |
186 | print_unpacked_pointer: | |
187 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
188 | ||
189 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
373a8247 | 190 | { |
e13eedd5 | 191 | /* Try to print what function it points to. */ |
edf0c1b7 | 192 | print_address_demangle (options, gdbarch, addr, stream, demangle); |
d3eab38a | 193 | return; |
e13eedd5 | 194 | } |
373a8247 | 195 | |
e13eedd5 PM |
196 | if (options->addressprint && options->format != 's') |
197 | { | |
198 | fputs_filtered (paddress (gdbarch, addr), stream); | |
b012acdd | 199 | want_space = 1; |
e13eedd5 | 200 | } |
373a8247 | 201 | |
e13eedd5 PM |
202 | /* For a pointer to char or unsigned char, also print the string |
203 | pointed to, unless pointer is null. */ | |
204 | if (((TYPE_LENGTH (elttype) == 1 | |
205 | && (TYPE_CODE (elttype) == TYPE_CODE_INT | |
206 | || TYPE_CODE (elttype) == TYPE_CODE_CHAR)) | |
207 | || ((TYPE_LENGTH (elttype) == 2 || TYPE_LENGTH (elttype) == 4) | |
208 | && TYPE_CODE (elttype) == TYPE_CODE_CHAR)) | |
209 | && (options->format == 0 || options->format == 's') | |
210 | && addr != 0) | |
211 | { | |
b012acdd TT |
212 | if (want_space) |
213 | fputs_filtered (" ", stream); | |
0df8b418 | 214 | /* No wide string yet. */ |
09ca9e2e | 215 | i = val_print_string (elttype, NULL, addr, -1, stream, options); |
e13eedd5 | 216 | } |
0df8b418 | 217 | /* Also for pointers to pascal strings. */ |
e13eedd5 PM |
218 | /* Note: this is Free Pascal specific: |
219 | as GDB does not recognize stabs pascal strings | |
220 | Pascal strings are mapped to records | |
0df8b418 | 221 | with lowercase names PM. */ |
e13eedd5 PM |
222 | if (is_pascal_string_type (elttype, &length_pos, &length_size, |
223 | &string_pos, &char_type, NULL) | |
224 | && addr != 0) | |
225 | { | |
226 | ULONGEST string_length; | |
7c543f7b | 227 | gdb_byte *buffer; |
ad3bbd48 | 228 | |
b012acdd TT |
229 | if (want_space) |
230 | fputs_filtered (" ", stream); | |
7c543f7b | 231 | buffer = (gdb_byte *) xmalloc (length_size); |
e13eedd5 PM |
232 | read_memory (addr + length_pos, buffer, length_size); |
233 | string_length = extract_unsigned_integer (buffer, length_size, | |
234 | byte_order); | |
235 | xfree (buffer); | |
09ca9e2e TT |
236 | i = val_print_string (char_type, NULL, |
237 | addr + string_pos, string_length, | |
238 | stream, options); | |
e13eedd5 PM |
239 | } |
240 | else if (pascal_object_is_vtbl_member (type)) | |
241 | { | |
0df8b418 | 242 | /* Print vtbl's nicely. */ |
3e43a32a MS |
243 | CORE_ADDR vt_address = unpack_pointer (type, |
244 | valaddr + embedded_offset); | |
7cbd4a93 | 245 | struct bound_minimal_symbol msymbol = |
ad3bbd48 MS |
246 | lookup_minimal_symbol_by_pc (vt_address); |
247 | ||
9cb709b6 TT |
248 | /* If 'symbol_print' is set, we did the work above. */ |
249 | if (!options->symbol_print | |
7cbd4a93 | 250 | && (msymbol.minsym != NULL) |
77e371c0 | 251 | && (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol))) |
373a8247 | 252 | { |
b012acdd TT |
253 | if (want_space) |
254 | fputs_filtered (" ", stream); | |
255 | fputs_filtered ("<", stream); | |
c9d95fa3 | 256 | fputs_filtered (msymbol.minsym->print_name (), stream); |
e13eedd5 | 257 | fputs_filtered (">", stream); |
b012acdd | 258 | want_space = 1; |
373a8247 | 259 | } |
e13eedd5 | 260 | if (vt_address && options->vtblprint) |
373a8247 | 261 | { |
e13eedd5 | 262 | struct value *vt_val; |
be903358 | 263 | struct symbol *wsym = NULL; |
e13eedd5 | 264 | struct type *wtype; |
373a8247 | 265 | |
b012acdd TT |
266 | if (want_space) |
267 | fputs_filtered (" ", stream); | |
268 | ||
7cbd4a93 | 269 | if (msymbol.minsym != NULL) |
de63c46b | 270 | { |
c9d95fa3 | 271 | const char *search_name = msymbol.minsym->search_name (); |
582942f4 | 272 | wsym = lookup_symbol_search_name (search_name, NULL, |
de63c46b PA |
273 | VAR_DOMAIN).symbol; |
274 | } | |
e13eedd5 PM |
275 | |
276 | if (wsym) | |
373a8247 | 277 | { |
e13eedd5 | 278 | wtype = SYMBOL_TYPE (wsym); |
373a8247 | 279 | } |
e13eedd5 | 280 | else |
373a8247 | 281 | { |
e13eedd5 PM |
282 | wtype = TYPE_TARGET_TYPE (type); |
283 | } | |
284 | vt_val = value_at (wtype, vt_address); | |
285 | common_val_print (vt_val, stream, recurse + 1, options, | |
286 | current_language); | |
2a998fc0 | 287 | if (options->prettyformat) |
e13eedd5 PM |
288 | { |
289 | fprintf_filtered (stream, "\n"); | |
290 | print_spaces_filtered (2 + 2 * recurse, stream); | |
373a8247 PM |
291 | } |
292 | } | |
373a8247 | 293 | } |
e13eedd5 | 294 | |
d3eab38a | 295 | return; |
373a8247 | 296 | |
373a8247 | 297 | case TYPE_CODE_REF: |
e88acd96 TT |
298 | case TYPE_CODE_ENUM: |
299 | case TYPE_CODE_FLAGS: | |
300 | case TYPE_CODE_FUNC: | |
301 | case TYPE_CODE_RANGE: | |
302 | case TYPE_CODE_INT: | |
303 | case TYPE_CODE_FLT: | |
304 | case TYPE_CODE_VOID: | |
305 | case TYPE_CODE_ERROR: | |
306 | case TYPE_CODE_UNDEF: | |
307 | case TYPE_CODE_BOOL: | |
308 | case TYPE_CODE_CHAR: | |
e8b24d9f | 309 | generic_val_print (type, embedded_offset, address, |
e88acd96 TT |
310 | stream, recurse, original_value, options, |
311 | &p_decorations); | |
373a8247 PM |
312 | break; |
313 | ||
314 | case TYPE_CODE_UNION: | |
79a45b7d | 315 | if (recurse && !options->unionprint) |
373a8247 PM |
316 | { |
317 | fprintf_filtered (stream, "{...}"); | |
318 | break; | |
319 | } | |
320 | /* Fall through. */ | |
321 | case TYPE_CODE_STRUCT: | |
79a45b7d | 322 | if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type)) |
373a8247 PM |
323 | { |
324 | /* Print the unmangled name if desired. */ | |
325 | /* Print vtable entry - we only get here if NOT using | |
0df8b418 | 326 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */ |
b276f1bb AC |
327 | /* Extract the address, assume that it is unsigned. */ |
328 | print_address_demangle | |
edf0c1b7 | 329 | (options, gdbarch, |
3e43a32a MS |
330 | extract_unsigned_integer (valaddr + embedded_offset |
331 | + TYPE_FIELD_BITPOS (type, | |
332 | VTBL_FNADDR_OFFSET) / 8, | |
333 | TYPE_LENGTH (TYPE_FIELD_TYPE (type, | |
334 | VTBL_FNADDR_OFFSET)), | |
335 | byte_order), | |
b276f1bb | 336 | stream, demangle); |
373a8247 PM |
337 | } |
338 | else | |
339 | { | |
5598ce11 | 340 | if (is_pascal_string_type (type, &length_pos, &length_size, |
6c7a06a3 | 341 | &string_pos, &char_type, NULL)) |
373a8247 | 342 | { |
3e43a32a MS |
343 | len = extract_unsigned_integer (valaddr + embedded_offset |
344 | + length_pos, length_size, | |
345 | byte_order); | |
6ced1581 | 346 | LA_PRINT_STRING (stream, char_type, |
be759fcf PM |
347 | valaddr + embedded_offset + string_pos, |
348 | len, NULL, 0, options); | |
373a8247 PM |
349 | } |
350 | else | |
490f124f | 351 | pascal_object_print_value_fields (type, valaddr, embedded_offset, |
3e43a32a MS |
352 | address, stream, recurse, |
353 | original_value, options, | |
354 | NULL, 0); | |
373a8247 PM |
355 | } |
356 | break; | |
357 | ||
373a8247 PM |
358 | case TYPE_CODE_SET: |
359 | elttype = TYPE_INDEX_TYPE (type); | |
f168693b | 360 | elttype = check_typedef (elttype); |
74a9bb82 | 361 | if (TYPE_STUB (elttype)) |
373a8247 | 362 | { |
7f6aba03 | 363 | fprintf_styled (stream, metadata_style.style (), "<incomplete type>"); |
373a8247 PM |
364 | break; |
365 | } | |
366 | else | |
367 | { | |
368 | struct type *range = elttype; | |
369 | LONGEST low_bound, high_bound; | |
373a8247 PM |
370 | int need_comma = 0; |
371 | ||
6b1755ce | 372 | fputs_filtered ("[", stream); |
373a8247 | 373 | |
b926417a | 374 | int bound_info = get_discrete_bounds (range, &low_bound, &high_bound); |
7a081a30 PM |
375 | if (low_bound == 0 && high_bound == -1 && TYPE_LENGTH (type) > 0) |
376 | { | |
377 | /* If we know the size of the set type, we can figure out the | |
378 | maximum value. */ | |
b926417a | 379 | bound_info = 0; |
7a081a30 PM |
380 | high_bound = TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1; |
381 | TYPE_HIGH_BOUND (range) = high_bound; | |
382 | } | |
373a8247 | 383 | maybe_bad_bstring: |
b926417a | 384 | if (bound_info < 0) |
373a8247 | 385 | { |
7f6aba03 | 386 | fputs_styled ("<error value>", metadata_style.style (), stream); |
373a8247 PM |
387 | goto done; |
388 | } | |
389 | ||
390 | for (i = low_bound; i <= high_bound; i++) | |
391 | { | |
3e43a32a MS |
392 | int element = value_bit_index (type, |
393 | valaddr + embedded_offset, i); | |
ad3bbd48 | 394 | |
373a8247 PM |
395 | if (element < 0) |
396 | { | |
397 | i = element; | |
398 | goto maybe_bad_bstring; | |
399 | } | |
6b1755ce | 400 | if (element) |
373a8247 PM |
401 | { |
402 | if (need_comma) | |
403 | fputs_filtered (", ", stream); | |
404 | print_type_scalar (range, i, stream); | |
405 | need_comma = 1; | |
406 | ||
3e43a32a MS |
407 | if (i + 1 <= high_bound |
408 | && value_bit_index (type, | |
409 | valaddr + embedded_offset, ++i)) | |
373a8247 PM |
410 | { |
411 | int j = i; | |
ad3bbd48 | 412 | |
373a8247 PM |
413 | fputs_filtered ("..", stream); |
414 | while (i + 1 <= high_bound | |
3e43a32a MS |
415 | && value_bit_index (type, |
416 | valaddr + embedded_offset, | |
417 | ++i)) | |
373a8247 PM |
418 | j = i; |
419 | print_type_scalar (range, j, stream); | |
420 | } | |
421 | } | |
422 | } | |
423 | done: | |
6b1755ce | 424 | fputs_filtered ("]", stream); |
373a8247 PM |
425 | } |
426 | break; | |
427 | ||
373a8247 | 428 | default: |
3e43a32a MS |
429 | error (_("Invalid pascal type code %d in symbol table."), |
430 | TYPE_CODE (type)); | |
373a8247 | 431 | } |
373a8247 | 432 | } |
c0941be6 TT |
433 | |
434 | /* See p-lang.h. */ | |
435 | ||
436 | void | |
437 | pascal_value_print_inner (struct value *val, struct ui_file *stream, | |
438 | int recurse, | |
439 | const struct value_print_options *options) | |
440 | ||
441 | { | |
64d64d3a TT |
442 | struct type *type = check_typedef (value_type (val)); |
443 | struct gdbarch *gdbarch = get_type_arch (type); | |
444 | enum bfd_endian byte_order = type_byte_order (type); | |
445 | unsigned int i = 0; /* Number of characters printed */ | |
446 | unsigned len; | |
447 | struct type *elttype; | |
448 | unsigned eltlen; | |
449 | int length_pos, length_size, string_pos; | |
450 | struct type *char_type; | |
451 | CORE_ADDR addr; | |
452 | int want_space = 0; | |
453 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
454 | ||
455 | switch (TYPE_CODE (type)) | |
456 | { | |
457 | case TYPE_CODE_ARRAY: | |
458 | { | |
459 | LONGEST low_bound, high_bound; | |
460 | ||
461 | if (get_array_bounds (type, &low_bound, &high_bound)) | |
462 | { | |
463 | len = high_bound - low_bound + 1; | |
464 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
465 | eltlen = TYPE_LENGTH (elttype); | |
466 | if (options->prettyformat_arrays) | |
467 | { | |
468 | print_spaces_filtered (2 + 2 * recurse, stream); | |
469 | } | |
470 | /* If 's' format is used, try to print out as string. | |
471 | If no format is given, print as string if element type | |
472 | is of TYPE_CODE_CHAR and element size is 1,2 or 4. */ | |
473 | if (options->format == 's' | |
474 | || ((eltlen == 1 || eltlen == 2 || eltlen == 4) | |
475 | && TYPE_CODE (elttype) == TYPE_CODE_CHAR | |
476 | && options->format == 0)) | |
477 | { | |
478 | /* If requested, look for the first null char and only print | |
479 | elements up to it. */ | |
480 | if (options->stop_print_at_null) | |
481 | { | |
482 | unsigned int temp_len; | |
483 | ||
484 | /* Look for a NULL char. */ | |
485 | for (temp_len = 0; | |
486 | extract_unsigned_integer (valaddr + temp_len * eltlen, | |
487 | eltlen, byte_order) | |
488 | && temp_len < len && temp_len < options->print_max; | |
489 | temp_len++); | |
490 | len = temp_len; | |
491 | } | |
492 | ||
493 | LA_PRINT_STRING (stream, TYPE_TARGET_TYPE (type), | |
494 | valaddr, len, NULL, 0, options); | |
495 | i = len; | |
496 | } | |
497 | else | |
498 | { | |
499 | fprintf_filtered (stream, "{"); | |
500 | /* If this is a virtual function table, print the 0th | |
501 | entry specially, and the rest of the members normally. */ | |
502 | if (pascal_object_is_vtbl_ptr_type (elttype)) | |
503 | { | |
504 | i = 1; | |
505 | fprintf_filtered (stream, "%d vtable entries", len - 1); | |
506 | } | |
507 | else | |
508 | { | |
509 | i = 0; | |
510 | } | |
511 | value_print_array_elements (val, stream, recurse, options, i); | |
512 | fprintf_filtered (stream, "}"); | |
513 | } | |
514 | break; | |
515 | } | |
516 | /* Array of unspecified length: treat like pointer to first elt. */ | |
517 | addr = value_address (val); | |
518 | } | |
519 | goto print_unpacked_pointer; | |
520 | ||
521 | case TYPE_CODE_PTR: | |
522 | if (options->format && options->format != 's') | |
523 | { | |
524 | value_print_scalar_formatted (val, options, 0, stream); | |
525 | break; | |
526 | } | |
527 | if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type)) | |
528 | { | |
529 | /* Print the unmangled name if desired. */ | |
530 | /* Print vtable entry - we only get here if we ARE using | |
531 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */ | |
532 | /* Extract the address, assume that it is unsigned. */ | |
533 | addr = extract_unsigned_integer (valaddr, | |
534 | TYPE_LENGTH (type), byte_order); | |
535 | print_address_demangle (options, gdbarch, addr, stream, demangle); | |
536 | break; | |
537 | } | |
538 | check_typedef (TYPE_TARGET_TYPE (type)); | |
539 | ||
540 | addr = unpack_pointer (type, valaddr); | |
541 | print_unpacked_pointer: | |
542 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
543 | ||
544 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
545 | { | |
546 | /* Try to print what function it points to. */ | |
547 | print_address_demangle (options, gdbarch, addr, stream, demangle); | |
548 | return; | |
549 | } | |
550 | ||
551 | if (options->addressprint && options->format != 's') | |
552 | { | |
553 | fputs_filtered (paddress (gdbarch, addr), stream); | |
554 | want_space = 1; | |
555 | } | |
556 | ||
557 | /* For a pointer to char or unsigned char, also print the string | |
558 | pointed to, unless pointer is null. */ | |
559 | if (((TYPE_LENGTH (elttype) == 1 | |
560 | && (TYPE_CODE (elttype) == TYPE_CODE_INT | |
561 | || TYPE_CODE (elttype) == TYPE_CODE_CHAR)) | |
562 | || ((TYPE_LENGTH (elttype) == 2 || TYPE_LENGTH (elttype) == 4) | |
563 | && TYPE_CODE (elttype) == TYPE_CODE_CHAR)) | |
564 | && (options->format == 0 || options->format == 's') | |
565 | && addr != 0) | |
566 | { | |
567 | if (want_space) | |
568 | fputs_filtered (" ", stream); | |
569 | /* No wide string yet. */ | |
570 | i = val_print_string (elttype, NULL, addr, -1, stream, options); | |
571 | } | |
572 | /* Also for pointers to pascal strings. */ | |
573 | /* Note: this is Free Pascal specific: | |
574 | as GDB does not recognize stabs pascal strings | |
575 | Pascal strings are mapped to records | |
576 | with lowercase names PM. */ | |
577 | if (is_pascal_string_type (elttype, &length_pos, &length_size, | |
578 | &string_pos, &char_type, NULL) | |
579 | && addr != 0) | |
580 | { | |
581 | ULONGEST string_length; | |
582 | gdb_byte *buffer; | |
583 | ||
584 | if (want_space) | |
585 | fputs_filtered (" ", stream); | |
586 | buffer = (gdb_byte *) xmalloc (length_size); | |
587 | read_memory (addr + length_pos, buffer, length_size); | |
588 | string_length = extract_unsigned_integer (buffer, length_size, | |
589 | byte_order); | |
590 | xfree (buffer); | |
591 | i = val_print_string (char_type, NULL, | |
592 | addr + string_pos, string_length, | |
593 | stream, options); | |
594 | } | |
595 | else if (pascal_object_is_vtbl_member (type)) | |
596 | { | |
597 | /* Print vtbl's nicely. */ | |
598 | CORE_ADDR vt_address = unpack_pointer (type, valaddr); | |
599 | struct bound_minimal_symbol msymbol = | |
600 | lookup_minimal_symbol_by_pc (vt_address); | |
601 | ||
602 | /* If 'symbol_print' is set, we did the work above. */ | |
603 | if (!options->symbol_print | |
604 | && (msymbol.minsym != NULL) | |
605 | && (vt_address == BMSYMBOL_VALUE_ADDRESS (msymbol))) | |
606 | { | |
607 | if (want_space) | |
608 | fputs_filtered (" ", stream); | |
609 | fputs_filtered ("<", stream); | |
610 | fputs_filtered (msymbol.minsym->print_name (), stream); | |
611 | fputs_filtered (">", stream); | |
612 | want_space = 1; | |
613 | } | |
614 | if (vt_address && options->vtblprint) | |
615 | { | |
616 | struct value *vt_val; | |
617 | struct symbol *wsym = NULL; | |
618 | struct type *wtype; | |
619 | ||
620 | if (want_space) | |
621 | fputs_filtered (" ", stream); | |
622 | ||
623 | if (msymbol.minsym != NULL) | |
624 | { | |
625 | const char *search_name = msymbol.minsym->search_name (); | |
626 | wsym = lookup_symbol_search_name (search_name, NULL, | |
627 | VAR_DOMAIN).symbol; | |
628 | } | |
629 | ||
630 | if (wsym) | |
631 | { | |
632 | wtype = SYMBOL_TYPE (wsym); | |
633 | } | |
634 | else | |
635 | { | |
636 | wtype = TYPE_TARGET_TYPE (type); | |
637 | } | |
638 | vt_val = value_at (wtype, vt_address); | |
639 | common_val_print (vt_val, stream, recurse + 1, options, | |
640 | current_language); | |
641 | if (options->prettyformat) | |
642 | { | |
643 | fprintf_filtered (stream, "\n"); | |
644 | print_spaces_filtered (2 + 2 * recurse, stream); | |
645 | } | |
646 | } | |
647 | } | |
648 | ||
649 | return; | |
650 | ||
651 | case TYPE_CODE_REF: | |
652 | case TYPE_CODE_ENUM: | |
653 | case TYPE_CODE_FLAGS: | |
654 | case TYPE_CODE_FUNC: | |
655 | case TYPE_CODE_RANGE: | |
656 | case TYPE_CODE_INT: | |
657 | case TYPE_CODE_FLT: | |
658 | case TYPE_CODE_VOID: | |
659 | case TYPE_CODE_ERROR: | |
660 | case TYPE_CODE_UNDEF: | |
661 | case TYPE_CODE_BOOL: | |
662 | case TYPE_CODE_CHAR: | |
663 | generic_value_print (val, stream, recurse, options, &p_decorations); | |
664 | break; | |
665 | ||
666 | case TYPE_CODE_UNION: | |
667 | if (recurse && !options->unionprint) | |
668 | { | |
669 | fprintf_filtered (stream, "{...}"); | |
670 | break; | |
671 | } | |
672 | /* Fall through. */ | |
673 | case TYPE_CODE_STRUCT: | |
674 | if (options->vtblprint && pascal_object_is_vtbl_ptr_type (type)) | |
675 | { | |
676 | /* Print the unmangled name if desired. */ | |
677 | /* Print vtable entry - we only get here if NOT using | |
678 | -fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */ | |
679 | /* Extract the address, assume that it is unsigned. */ | |
680 | print_address_demangle | |
681 | (options, gdbarch, | |
682 | extract_unsigned_integer (valaddr | |
683 | + TYPE_FIELD_BITPOS (type, | |
684 | VTBL_FNADDR_OFFSET) / 8, | |
685 | TYPE_LENGTH (TYPE_FIELD_TYPE (type, | |
686 | VTBL_FNADDR_OFFSET)), | |
687 | byte_order), | |
688 | stream, demangle); | |
689 | } | |
690 | else | |
691 | { | |
692 | if (is_pascal_string_type (type, &length_pos, &length_size, | |
693 | &string_pos, &char_type, NULL)) | |
694 | { | |
695 | len = extract_unsigned_integer (valaddr + length_pos, | |
696 | length_size, byte_order); | |
697 | LA_PRINT_STRING (stream, char_type, valaddr + string_pos, | |
698 | len, NULL, 0, options); | |
699 | } | |
700 | else | |
701 | pascal_object_print_value_fields (type, valaddr, 0, | |
702 | value_address (val), stream, | |
703 | recurse, val, options, | |
704 | NULL, 0); | |
705 | } | |
706 | break; | |
707 | ||
708 | case TYPE_CODE_SET: | |
709 | elttype = TYPE_INDEX_TYPE (type); | |
710 | elttype = check_typedef (elttype); | |
711 | if (TYPE_STUB (elttype)) | |
712 | { | |
713 | fprintf_styled (stream, metadata_style.style (), "<incomplete type>"); | |
714 | break; | |
715 | } | |
716 | else | |
717 | { | |
718 | struct type *range = elttype; | |
719 | LONGEST low_bound, high_bound; | |
720 | int need_comma = 0; | |
721 | ||
722 | fputs_filtered ("[", stream); | |
723 | ||
724 | int bound_info = get_discrete_bounds (range, &low_bound, &high_bound); | |
725 | if (low_bound == 0 && high_bound == -1 && TYPE_LENGTH (type) > 0) | |
726 | { | |
727 | /* If we know the size of the set type, we can figure out the | |
728 | maximum value. */ | |
729 | bound_info = 0; | |
730 | high_bound = TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1; | |
731 | TYPE_HIGH_BOUND (range) = high_bound; | |
732 | } | |
733 | maybe_bad_bstring: | |
734 | if (bound_info < 0) | |
735 | { | |
736 | fputs_styled ("<error value>", metadata_style.style (), stream); | |
737 | goto done; | |
738 | } | |
739 | ||
740 | for (i = low_bound; i <= high_bound; i++) | |
741 | { | |
742 | int element = value_bit_index (type, valaddr, i); | |
743 | ||
744 | if (element < 0) | |
745 | { | |
746 | i = element; | |
747 | goto maybe_bad_bstring; | |
748 | } | |
749 | if (element) | |
750 | { | |
751 | if (need_comma) | |
752 | fputs_filtered (", ", stream); | |
753 | print_type_scalar (range, i, stream); | |
754 | need_comma = 1; | |
755 | ||
756 | if (i + 1 <= high_bound | |
757 | && value_bit_index (type, valaddr, ++i)) | |
758 | { | |
759 | int j = i; | |
760 | ||
761 | fputs_filtered ("..", stream); | |
762 | while (i + 1 <= high_bound | |
763 | && value_bit_index (type, valaddr, ++i)) | |
764 | j = i; | |
765 | print_type_scalar (range, j, stream); | |
766 | } | |
767 | } | |
768 | } | |
769 | done: | |
770 | fputs_filtered ("]", stream); | |
771 | } | |
772 | break; | |
773 | ||
774 | default: | |
775 | error (_("Invalid pascal type code %d in symbol table."), | |
776 | TYPE_CODE (type)); | |
777 | } | |
c0941be6 TT |
778 | } |
779 | ||
373a8247 | 780 | \f |
8e069a98 | 781 | void |
79a45b7d TT |
782 | pascal_value_print (struct value *val, struct ui_file *stream, |
783 | const struct value_print_options *options) | |
373a8247 | 784 | { |
df407dfe | 785 | struct type *type = value_type (val); |
278582cb PM |
786 | struct value_print_options opts = *options; |
787 | ||
788 | opts.deref_ref = 1; | |
373a8247 PM |
789 | |
790 | /* If it is a pointer, indicate what it points to. | |
791 | ||
792 | Print type also if it is a reference. | |
793 | ||
794 | Object pascal: if it is a member pointer, we will take care | |
795 | of that when we print it. */ | |
b20a3440 PM |
796 | if (TYPE_CODE (type) == TYPE_CODE_PTR |
797 | || TYPE_CODE (type) == TYPE_CODE_REF) | |
373a8247 PM |
798 | { |
799 | /* Hack: remove (char *) for char strings. Their | |
0df8b418 | 800 | type is indicated by the quoted string anyway. */ |
6ced1581 | 801 | if (TYPE_CODE (type) == TYPE_CODE_PTR |
b20a3440 PM |
802 | && TYPE_NAME (type) == NULL |
803 | && TYPE_NAME (TYPE_TARGET_TYPE (type)) != NULL | |
6314a349 | 804 | && strcmp (TYPE_NAME (TYPE_TARGET_TYPE (type)), "char") == 0) |
373a8247 | 805 | { |
0df8b418 | 806 | /* Print nothing. */ |
373a8247 PM |
807 | } |
808 | else | |
809 | { | |
810 | fprintf_filtered (stream, "("); | |
811 | type_print (type, "", stream, -1); | |
812 | fprintf_filtered (stream, ") "); | |
813 | } | |
814 | } | |
8e069a98 | 815 | common_val_print (val, stream, 0, &opts, current_language); |
373a8247 PM |
816 | } |
817 | ||
818 | ||
920d2a44 AC |
819 | static void |
820 | show_pascal_static_field_print (struct ui_file *file, int from_tty, | |
821 | struct cmd_list_element *c, const char *value) | |
822 | { | |
823 | fprintf_filtered (file, _("Printing of pascal static members is %s.\n"), | |
824 | value); | |
825 | } | |
373a8247 PM |
826 | |
827 | static struct obstack dont_print_vb_obstack; | |
828 | static struct obstack dont_print_statmem_obstack; | |
829 | ||
806048c6 | 830 | static void pascal_object_print_static_field (struct value *, |
79a45b7d TT |
831 | struct ui_file *, int, |
832 | const struct value_print_options *); | |
373a8247 | 833 | |
fc1a4b47 | 834 | static void pascal_object_print_value (struct type *, const gdb_byte *, |
6b850546 | 835 | LONGEST, |
79a45b7d | 836 | CORE_ADDR, struct ui_file *, int, |
e8b24d9f | 837 | struct value *, |
79a45b7d | 838 | const struct value_print_options *, |
a2bd3dcd | 839 | struct type **); |
373a8247 | 840 | |
07a32858 TT |
841 | static void pascal_object_print_value (struct value *, struct ui_file *, int, |
842 | const struct value_print_options *, | |
843 | struct type **); | |
844 | ||
373a8247 PM |
845 | /* It was changed to this after 2.4.5. */ |
846 | const char pascal_vtbl_ptr_name[] = | |
847 | {'_', '_', 'v', 't', 'b', 'l', '_', 'p', 't', 'r', '_', 't', 'y', 'p', 'e', 0}; | |
848 | ||
849 | /* Return truth value for assertion that TYPE is of the type | |
850 | "pointer to virtual function". */ | |
851 | ||
852 | int | |
fba45db2 | 853 | pascal_object_is_vtbl_ptr_type (struct type *type) |
373a8247 | 854 | { |
a737d952 | 855 | const char *type_name = TYPE_NAME (type); |
373a8247 | 856 | |
fe978cb0 PA |
857 | return (type_name != NULL |
858 | && strcmp (type_name, pascal_vtbl_ptr_name) == 0); | |
373a8247 PM |
859 | } |
860 | ||
861 | /* Return truth value for the assertion that TYPE is of the type | |
862 | "pointer to virtual function table". */ | |
863 | ||
864 | int | |
fba45db2 | 865 | pascal_object_is_vtbl_member (struct type *type) |
373a8247 PM |
866 | { |
867 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
868 | { | |
869 | type = TYPE_TARGET_TYPE (type); | |
870 | if (TYPE_CODE (type) == TYPE_CODE_ARRAY) | |
871 | { | |
872 | type = TYPE_TARGET_TYPE (type); | |
0df8b418 MS |
873 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT /* If not using |
874 | thunks. */ | |
875 | || TYPE_CODE (type) == TYPE_CODE_PTR) /* If using thunks. */ | |
373a8247 PM |
876 | { |
877 | /* Virtual functions tables are full of pointers | |
0df8b418 | 878 | to virtual functions. */ |
373a8247 PM |
879 | return pascal_object_is_vtbl_ptr_type (type); |
880 | } | |
881 | } | |
882 | } | |
883 | return 0; | |
884 | } | |
885 | ||
a2bd3dcd AC |
886 | /* Mutually recursive subroutines of pascal_object_print_value and |
887 | c_val_print to print out a structure's fields: | |
888 | pascal_object_print_value_fields and pascal_object_print_value. | |
373a8247 | 889 | |
79a45b7d | 890 | TYPE, VALADDR, ADDRESS, STREAM, RECURSE, and OPTIONS have the |
373a8247 PM |
891 | same meanings as in pascal_object_print_value and c_val_print. |
892 | ||
893 | DONT_PRINT is an array of baseclass types that we | |
894 | should not print, or zero if called from top level. */ | |
895 | ||
1e592a8a | 896 | static void |
fc1a4b47 | 897 | pascal_object_print_value_fields (struct type *type, const gdb_byte *valaddr, |
6b850546 | 898 | LONGEST offset, |
fba45db2 | 899 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 900 | int recurse, |
e8b24d9f | 901 | struct value *val, |
79a45b7d | 902 | const struct value_print_options *options, |
fba45db2 KB |
903 | struct type **dont_print_vb, |
904 | int dont_print_statmem) | |
373a8247 PM |
905 | { |
906 | int i, len, n_baseclasses; | |
79f33898 SM |
907 | char *last_dont_print |
908 | = (char *) obstack_next_free (&dont_print_statmem_obstack); | |
373a8247 | 909 | |
f168693b | 910 | type = check_typedef (type); |
373a8247 PM |
911 | |
912 | fprintf_filtered (stream, "{"); | |
913 | len = TYPE_NFIELDS (type); | |
914 | n_baseclasses = TYPE_N_BASECLASSES (type); | |
915 | ||
916 | /* Print out baseclasses such that we don't print | |
917 | duplicates of virtual baseclasses. */ | |
918 | if (n_baseclasses > 0) | |
490f124f PA |
919 | pascal_object_print_value (type, valaddr, offset, address, |
920 | stream, recurse + 1, val, | |
921 | options, dont_print_vb); | |
373a8247 PM |
922 | |
923 | if (!len && n_baseclasses == 1) | |
7f6aba03 | 924 | fprintf_styled (stream, metadata_style.style (), "<No data fields>"); |
373a8247 PM |
925 | else |
926 | { | |
c1b6e682 | 927 | struct obstack tmp_obstack = dont_print_statmem_obstack; |
373a8247 PM |
928 | int fields_seen = 0; |
929 | ||
930 | if (dont_print_statmem == 0) | |
931 | { | |
932 | /* If we're at top level, carve out a completely fresh | |
933 | chunk of the obstack and use that until this particular | |
934 | invocation returns. */ | |
373a8247 PM |
935 | obstack_finish (&dont_print_statmem_obstack); |
936 | } | |
937 | ||
938 | for (i = n_baseclasses; i < len; i++) | |
939 | { | |
940 | /* If requested, skip printing of static fields. */ | |
79a45b7d | 941 | if (!options->pascal_static_field_print |
d6a843b5 | 942 | && field_is_static (&TYPE_FIELD (type, i))) |
373a8247 PM |
943 | continue; |
944 | if (fields_seen) | |
945 | fprintf_filtered (stream, ", "); | |
946 | else if (n_baseclasses > 0) | |
947 | { | |
2a998fc0 | 948 | if (options->prettyformat) |
373a8247 PM |
949 | { |
950 | fprintf_filtered (stream, "\n"); | |
951 | print_spaces_filtered (2 + 2 * recurse, stream); | |
952 | fputs_filtered ("members of ", stream); | |
a737d952 | 953 | fputs_filtered (TYPE_NAME (type), stream); |
373a8247 PM |
954 | fputs_filtered (": ", stream); |
955 | } | |
956 | } | |
957 | fields_seen = 1; | |
958 | ||
2a998fc0 | 959 | if (options->prettyformat) |
373a8247 PM |
960 | { |
961 | fprintf_filtered (stream, "\n"); | |
962 | print_spaces_filtered (2 + 2 * recurse, stream); | |
963 | } | |
964 | else | |
965 | { | |
966 | wrap_here (n_spaces (2 + 2 * recurse)); | |
967 | } | |
e93a8774 TT |
968 | |
969 | annotate_field_begin (TYPE_FIELD_TYPE (type, i)); | |
970 | ||
971 | if (field_is_static (&TYPE_FIELD (type, i))) | |
3f0cbb04 TT |
972 | { |
973 | fputs_filtered ("static ", stream); | |
974 | fprintf_symbol_filtered (stream, | |
975 | TYPE_FIELD_NAME (type, i), | |
976 | current_language->la_language, | |
977 | DMGL_PARAMS | DMGL_ANSI); | |
978 | } | |
979 | else | |
980 | fputs_styled (TYPE_FIELD_NAME (type, i), | |
981 | variable_name_style.style (), stream); | |
e93a8774 TT |
982 | annotate_field_name_end (); |
983 | fputs_filtered (" = ", stream); | |
984 | annotate_field_value (); | |
373a8247 | 985 | |
d6a843b5 JK |
986 | if (!field_is_static (&TYPE_FIELD (type, i)) |
987 | && TYPE_FIELD_PACKED (type, i)) | |
373a8247 | 988 | { |
6943961c | 989 | struct value *v; |
373a8247 PM |
990 | |
991 | /* Bitfields require special handling, especially due to byte | |
992 | order problems. */ | |
993 | if (TYPE_FIELD_IGNORE (type, i)) | |
994 | { | |
7f6aba03 TT |
995 | fputs_styled ("<optimized out or zero length>", |
996 | metadata_style.style (), stream); | |
373a8247 | 997 | } |
8cf6f0b1 TT |
998 | else if (value_bits_synthetic_pointer (val, |
999 | TYPE_FIELD_BITPOS (type, | |
1000 | i), | |
1001 | TYPE_FIELD_BITSIZE (type, | |
1002 | i))) | |
1003 | { | |
7f6aba03 TT |
1004 | fputs_styled (_("<synthetic pointer>"), |
1005 | metadata_style.style (), stream); | |
8cf6f0b1 | 1006 | } |
373a8247 PM |
1007 | else |
1008 | { | |
79a45b7d | 1009 | struct value_print_options opts = *options; |
ad3bbd48 | 1010 | |
5467c6c8 | 1011 | v = value_field_bitfield (type, i, valaddr, offset, val); |
373a8247 | 1012 | |
79a45b7d TT |
1013 | opts.deref_ref = 0; |
1014 | common_val_print (v, stream, recurse + 1, &opts, | |
1015 | current_language); | |
373a8247 PM |
1016 | } |
1017 | } | |
1018 | else | |
1019 | { | |
1020 | if (TYPE_FIELD_IGNORE (type, i)) | |
1021 | { | |
7f6aba03 TT |
1022 | fputs_styled ("<optimized out or zero length>", |
1023 | metadata_style.style (), stream); | |
373a8247 | 1024 | } |
d6a843b5 | 1025 | else if (field_is_static (&TYPE_FIELD (type, i))) |
373a8247 | 1026 | { |
3e43a32a | 1027 | /* struct value *v = value_static_field (type, i); |
0df8b418 | 1028 | v4.17 specific. */ |
6943961c | 1029 | struct value *v; |
ad3bbd48 | 1030 | |
5467c6c8 | 1031 | v = value_field_bitfield (type, i, valaddr, offset, val); |
373a8247 PM |
1032 | |
1033 | if (v == NULL) | |
901461f8 | 1034 | val_print_optimized_out (NULL, stream); |
373a8247 | 1035 | else |
79a45b7d TT |
1036 | pascal_object_print_static_field (v, stream, recurse + 1, |
1037 | options); | |
373a8247 PM |
1038 | } |
1039 | else | |
1040 | { | |
79a45b7d | 1041 | struct value_print_options opts = *options; |
ad3bbd48 | 1042 | |
79a45b7d | 1043 | opts.deref_ref = 0; |
373a8247 PM |
1044 | /* val_print (TYPE_FIELD_TYPE (type, i), |
1045 | valaddr + TYPE_FIELD_BITPOS (type, i) / 8, | |
1046 | address + TYPE_FIELD_BITPOS (type, i) / 8, 0, | |
1047 | stream, format, 0, recurse + 1, pretty); */ | |
1048 | val_print (TYPE_FIELD_TYPE (type, i), | |
e8b24d9f | 1049 | offset + TYPE_FIELD_BITPOS (type, i) / 8, |
490f124f | 1050 | address, stream, recurse + 1, val, &opts, |
d8ca156b | 1051 | current_language); |
373a8247 PM |
1052 | } |
1053 | } | |
1054 | annotate_field_end (); | |
1055 | } | |
1056 | ||
1057 | if (dont_print_statmem == 0) | |
1058 | { | |
1059 | /* Free the space used to deal with the printing | |
1060 | of the members from top level. */ | |
1061 | obstack_free (&dont_print_statmem_obstack, last_dont_print); | |
1062 | dont_print_statmem_obstack = tmp_obstack; | |
1063 | } | |
1064 | ||
2a998fc0 | 1065 | if (options->prettyformat) |
373a8247 PM |
1066 | { |
1067 | fprintf_filtered (stream, "\n"); | |
1068 | print_spaces_filtered (2 * recurse, stream); | |
1069 | } | |
1070 | } | |
1071 | fprintf_filtered (stream, "}"); | |
1072 | } | |
1073 | ||
07a32858 TT |
1074 | /* Mutually recursive subroutines of pascal_object_print_value and |
1075 | pascal_value_print to print out a structure's fields: | |
1076 | pascal_object_print_value_fields and pascal_object_print_value. | |
1077 | ||
1078 | VAL, STREAM, RECURSE, and OPTIONS have the same meanings as in | |
1079 | pascal_object_print_value and c_value_print. | |
1080 | ||
1081 | DONT_PRINT is an array of baseclass types that we | |
1082 | should not print, or zero if called from top level. */ | |
1083 | ||
1084 | static void | |
1085 | pascal_object_print_value_fields (struct value *val, struct ui_file *stream, | |
1086 | int recurse, | |
1087 | const struct value_print_options *options, | |
1088 | struct type **dont_print_vb, | |
1089 | int dont_print_statmem) | |
1090 | { | |
1091 | int i, len, n_baseclasses; | |
1092 | char *last_dont_print | |
1093 | = (char *) obstack_next_free (&dont_print_statmem_obstack); | |
1094 | ||
1095 | struct type *type = check_typedef (value_type (val)); | |
1096 | ||
1097 | fprintf_filtered (stream, "{"); | |
1098 | len = TYPE_NFIELDS (type); | |
1099 | n_baseclasses = TYPE_N_BASECLASSES (type); | |
1100 | ||
1101 | /* Print out baseclasses such that we don't print | |
1102 | duplicates of virtual baseclasses. */ | |
1103 | if (n_baseclasses > 0) | |
1104 | pascal_object_print_value (val, stream, recurse + 1, | |
1105 | options, dont_print_vb); | |
1106 | ||
1107 | if (!len && n_baseclasses == 1) | |
1108 | fprintf_styled (stream, metadata_style.style (), "<No data fields>"); | |
1109 | else | |
1110 | { | |
1111 | struct obstack tmp_obstack = dont_print_statmem_obstack; | |
1112 | int fields_seen = 0; | |
1113 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
1114 | ||
1115 | if (dont_print_statmem == 0) | |
1116 | { | |
1117 | /* If we're at top level, carve out a completely fresh | |
1118 | chunk of the obstack and use that until this particular | |
1119 | invocation returns. */ | |
1120 | obstack_finish (&dont_print_statmem_obstack); | |
1121 | } | |
1122 | ||
1123 | for (i = n_baseclasses; i < len; i++) | |
1124 | { | |
1125 | /* If requested, skip printing of static fields. */ | |
1126 | if (!options->pascal_static_field_print | |
1127 | && field_is_static (&TYPE_FIELD (type, i))) | |
1128 | continue; | |
1129 | if (fields_seen) | |
1130 | fprintf_filtered (stream, ", "); | |
1131 | else if (n_baseclasses > 0) | |
1132 | { | |
1133 | if (options->prettyformat) | |
1134 | { | |
1135 | fprintf_filtered (stream, "\n"); | |
1136 | print_spaces_filtered (2 + 2 * recurse, stream); | |
1137 | fputs_filtered ("members of ", stream); | |
1138 | fputs_filtered (TYPE_NAME (type), stream); | |
1139 | fputs_filtered (": ", stream); | |
1140 | } | |
1141 | } | |
1142 | fields_seen = 1; | |
1143 | ||
1144 | if (options->prettyformat) | |
1145 | { | |
1146 | fprintf_filtered (stream, "\n"); | |
1147 | print_spaces_filtered (2 + 2 * recurse, stream); | |
1148 | } | |
1149 | else | |
1150 | { | |
1151 | wrap_here (n_spaces (2 + 2 * recurse)); | |
1152 | } | |
1153 | ||
1154 | annotate_field_begin (TYPE_FIELD_TYPE (type, i)); | |
1155 | ||
1156 | if (field_is_static (&TYPE_FIELD (type, i))) | |
1157 | { | |
1158 | fputs_filtered ("static ", stream); | |
1159 | fprintf_symbol_filtered (stream, | |
1160 | TYPE_FIELD_NAME (type, i), | |
1161 | current_language->la_language, | |
1162 | DMGL_PARAMS | DMGL_ANSI); | |
1163 | } | |
1164 | else | |
1165 | fputs_styled (TYPE_FIELD_NAME (type, i), | |
1166 | variable_name_style.style (), stream); | |
1167 | annotate_field_name_end (); | |
1168 | fputs_filtered (" = ", stream); | |
1169 | annotate_field_value (); | |
1170 | ||
1171 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
1172 | && TYPE_FIELD_PACKED (type, i)) | |
1173 | { | |
1174 | struct value *v; | |
1175 | ||
1176 | /* Bitfields require special handling, especially due to byte | |
1177 | order problems. */ | |
1178 | if (TYPE_FIELD_IGNORE (type, i)) | |
1179 | { | |
1180 | fputs_styled ("<optimized out or zero length>", | |
1181 | metadata_style.style (), stream); | |
1182 | } | |
1183 | else if (value_bits_synthetic_pointer (val, | |
1184 | TYPE_FIELD_BITPOS (type, | |
1185 | i), | |
1186 | TYPE_FIELD_BITSIZE (type, | |
1187 | i))) | |
1188 | { | |
1189 | fputs_styled (_("<synthetic pointer>"), | |
1190 | metadata_style.style (), stream); | |
1191 | } | |
1192 | else | |
1193 | { | |
1194 | struct value_print_options opts = *options; | |
1195 | ||
1196 | v = value_field_bitfield (type, i, valaddr, 0, val); | |
1197 | ||
1198 | opts.deref_ref = 0; | |
1199 | common_val_print (v, stream, recurse + 1, &opts, | |
1200 | current_language); | |
1201 | } | |
1202 | } | |
1203 | else | |
1204 | { | |
1205 | if (TYPE_FIELD_IGNORE (type, i)) | |
1206 | { | |
1207 | fputs_styled ("<optimized out or zero length>", | |
1208 | metadata_style.style (), stream); | |
1209 | } | |
1210 | else if (field_is_static (&TYPE_FIELD (type, i))) | |
1211 | { | |
1212 | /* struct value *v = value_static_field (type, i); | |
1213 | v4.17 specific. */ | |
1214 | struct value *v; | |
1215 | ||
1216 | v = value_field_bitfield (type, i, valaddr, 0, val); | |
1217 | ||
1218 | if (v == NULL) | |
1219 | val_print_optimized_out (NULL, stream); | |
1220 | else | |
1221 | pascal_object_print_static_field (v, stream, recurse + 1, | |
1222 | options); | |
1223 | } | |
1224 | else | |
1225 | { | |
1226 | struct value_print_options opts = *options; | |
1227 | ||
1228 | opts.deref_ref = 0; | |
1229 | ||
1230 | struct value *v = value_primitive_field (val, 0, i, | |
1231 | value_type (val)); | |
1232 | common_val_print (v, stream, recurse + 1, &opts, | |
1233 | current_language); | |
1234 | } | |
1235 | } | |
1236 | annotate_field_end (); | |
1237 | } | |
1238 | ||
1239 | if (dont_print_statmem == 0) | |
1240 | { | |
1241 | /* Free the space used to deal with the printing | |
1242 | of the members from top level. */ | |
1243 | obstack_free (&dont_print_statmem_obstack, last_dont_print); | |
1244 | dont_print_statmem_obstack = tmp_obstack; | |
1245 | } | |
1246 | ||
1247 | if (options->prettyformat) | |
1248 | { | |
1249 | fprintf_filtered (stream, "\n"); | |
1250 | print_spaces_filtered (2 * recurse, stream); | |
1251 | } | |
1252 | } | |
1253 | fprintf_filtered (stream, "}"); | |
1254 | } | |
1255 | ||
373a8247 PM |
1256 | /* Special val_print routine to avoid printing multiple copies of virtual |
1257 | baseclasses. */ | |
1258 | ||
7080f20f | 1259 | static void |
fc1a4b47 | 1260 | pascal_object_print_value (struct type *type, const gdb_byte *valaddr, |
6b850546 | 1261 | LONGEST offset, |
a2bd3dcd | 1262 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 1263 | int recurse, |
e8b24d9f | 1264 | struct value *val, |
79a45b7d | 1265 | const struct value_print_options *options, |
fba45db2 | 1266 | struct type **dont_print_vb) |
373a8247 | 1267 | { |
373a8247 | 1268 | struct type **last_dont_print |
ad3bbd48 | 1269 | = (struct type **) obstack_next_free (&dont_print_vb_obstack); |
c1b6e682 | 1270 | struct obstack tmp_obstack = dont_print_vb_obstack; |
373a8247 PM |
1271 | int i, n_baseclasses = TYPE_N_BASECLASSES (type); |
1272 | ||
1273 | if (dont_print_vb == 0) | |
1274 | { | |
1275 | /* If we're at top level, carve out a completely fresh | |
1276 | chunk of the obstack and use that until this particular | |
1277 | invocation returns. */ | |
373a8247 PM |
1278 | /* Bump up the high-water mark. Now alpha is omega. */ |
1279 | obstack_finish (&dont_print_vb_obstack); | |
1280 | } | |
1281 | ||
1282 | for (i = 0; i < n_baseclasses; i++) | |
1283 | { | |
6b850546 | 1284 | LONGEST boffset = 0; |
373a8247 | 1285 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
a737d952 | 1286 | const char *basename = TYPE_NAME (baseclass); |
8af8e3bc | 1287 | const gdb_byte *base_valaddr = NULL; |
6b850546 | 1288 | LONGEST thisoffset; |
8af8e3bc | 1289 | int skip = 0; |
49663d05 | 1290 | gdb::byte_vector buf; |
373a8247 PM |
1291 | |
1292 | if (BASETYPE_VIA_VIRTUAL (type, i)) | |
1293 | { | |
1294 | struct type **first_dont_print | |
ad3bbd48 | 1295 | = (struct type **) obstack_base (&dont_print_vb_obstack); |
373a8247 PM |
1296 | |
1297 | int j = (struct type **) obstack_next_free (&dont_print_vb_obstack) | |
ad3bbd48 | 1298 | - first_dont_print; |
373a8247 PM |
1299 | |
1300 | while (--j >= 0) | |
1301 | if (baseclass == first_dont_print[j]) | |
1302 | goto flush_it; | |
1303 | ||
1304 | obstack_ptr_grow (&dont_print_vb_obstack, baseclass); | |
1305 | } | |
1306 | ||
490f124f PA |
1307 | thisoffset = offset; |
1308 | ||
a70b8144 | 1309 | try |
8af8e3bc PA |
1310 | { |
1311 | boffset = baseclass_offset (type, i, valaddr, offset, address, val); | |
1312 | } | |
230d2906 | 1313 | catch (const gdb_exception_error &ex) |
8af8e3bc | 1314 | { |
7556d4a4 PA |
1315 | if (ex.error == NOT_AVAILABLE_ERROR) |
1316 | skip = -1; | |
1317 | else | |
1318 | skip = 1; | |
1319 | } | |
8af8e3bc | 1320 | |
7556d4a4 PA |
1321 | if (skip == 0) |
1322 | { | |
8af8e3bc PA |
1323 | /* The virtual base class pointer might have been clobbered by the |
1324 | user program. Make sure that it still points to a valid memory | |
1325 | location. */ | |
1326 | ||
1327 | if (boffset < 0 || boffset >= TYPE_LENGTH (type)) | |
1328 | { | |
49663d05 | 1329 | buf.resize (TYPE_LENGTH (baseclass)); |
6c18f3e0 | 1330 | |
49663d05 TT |
1331 | base_valaddr = buf.data (); |
1332 | if (target_read_memory (address + boffset, buf.data (), | |
8af8e3bc PA |
1333 | TYPE_LENGTH (baseclass)) != 0) |
1334 | skip = 1; | |
1335 | address = address + boffset; | |
1336 | thisoffset = 0; | |
1337 | boffset = 0; | |
1338 | } | |
1339 | else | |
1340 | base_valaddr = valaddr; | |
1341 | } | |
373a8247 | 1342 | |
2a998fc0 | 1343 | if (options->prettyformat) |
373a8247 PM |
1344 | { |
1345 | fprintf_filtered (stream, "\n"); | |
1346 | print_spaces_filtered (2 * recurse, stream); | |
1347 | } | |
1348 | fputs_filtered ("<", stream); | |
1349 | /* Not sure what the best notation is in the case where there is no | |
1350 | baseclass name. */ | |
1351 | ||
1352 | fputs_filtered (basename ? basename : "", stream); | |
1353 | fputs_filtered ("> = ", stream); | |
1354 | ||
8af8e3bc PA |
1355 | if (skip < 0) |
1356 | val_print_unavailable (stream); | |
1357 | else if (skip > 0) | |
1358 | val_print_invalid_address (stream); | |
373a8247 | 1359 | else |
3e43a32a | 1360 | pascal_object_print_value_fields (baseclass, base_valaddr, |
490f124f PA |
1361 | thisoffset + boffset, address, |
1362 | stream, recurse, val, options, | |
373a8247 PM |
1363 | (struct type **) obstack_base (&dont_print_vb_obstack), |
1364 | 0); | |
1365 | fputs_filtered (", ", stream); | |
1366 | ||
1367 | flush_it: | |
1368 | ; | |
1369 | } | |
1370 | ||
1371 | if (dont_print_vb == 0) | |
1372 | { | |
1373 | /* Free the space used to deal with the printing | |
1374 | of this type from top level. */ | |
1375 | obstack_free (&dont_print_vb_obstack, last_dont_print); | |
1376 | /* Reset watermark so that we can continue protecting | |
1377 | ourselves from whatever we were protecting ourselves. */ | |
1378 | dont_print_vb_obstack = tmp_obstack; | |
1379 | } | |
1380 | } | |
1381 | ||
07a32858 TT |
1382 | /* Special val_print routine to avoid printing multiple copies of virtual |
1383 | baseclasses. */ | |
1384 | ||
1385 | static void | |
1386 | pascal_object_print_value (struct value *val, struct ui_file *stream, | |
1387 | int recurse, | |
1388 | const struct value_print_options *options, | |
1389 | struct type **dont_print_vb) | |
1390 | { | |
1391 | struct type **last_dont_print | |
1392 | = (struct type **) obstack_next_free (&dont_print_vb_obstack); | |
1393 | struct obstack tmp_obstack = dont_print_vb_obstack; | |
1394 | struct type *type = check_typedef (value_type (val)); | |
1395 | int i, n_baseclasses = TYPE_N_BASECLASSES (type); | |
1396 | ||
1397 | if (dont_print_vb == 0) | |
1398 | { | |
1399 | /* If we're at top level, carve out a completely fresh | |
1400 | chunk of the obstack and use that until this particular | |
1401 | invocation returns. */ | |
1402 | /* Bump up the high-water mark. Now alpha is omega. */ | |
1403 | obstack_finish (&dont_print_vb_obstack); | |
1404 | } | |
1405 | ||
1406 | for (i = 0; i < n_baseclasses; i++) | |
1407 | { | |
1408 | LONGEST boffset = 0; | |
1409 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); | |
1410 | const char *basename = TYPE_NAME (baseclass); | |
1411 | int skip = 0; | |
1412 | ||
1413 | if (BASETYPE_VIA_VIRTUAL (type, i)) | |
1414 | { | |
1415 | struct type **first_dont_print | |
1416 | = (struct type **) obstack_base (&dont_print_vb_obstack); | |
1417 | ||
1418 | int j = (struct type **) obstack_next_free (&dont_print_vb_obstack) | |
1419 | - first_dont_print; | |
1420 | ||
1421 | while (--j >= 0) | |
1422 | if (baseclass == first_dont_print[j]) | |
1423 | goto flush_it; | |
1424 | ||
1425 | obstack_ptr_grow (&dont_print_vb_obstack, baseclass); | |
1426 | } | |
1427 | ||
1428 | struct value *base_value; | |
1429 | try | |
1430 | { | |
1431 | base_value = value_primitive_field (val, 0, i, type); | |
1432 | } | |
1433 | catch (const gdb_exception_error &ex) | |
1434 | { | |
1435 | if (ex.error == NOT_AVAILABLE_ERROR) | |
1436 | skip = -1; | |
1437 | else | |
1438 | skip = 1; | |
1439 | } | |
1440 | ||
1441 | if (skip == 0) | |
1442 | { | |
1443 | /* The virtual base class pointer might have been clobbered by the | |
1444 | user program. Make sure that it still points to a valid memory | |
1445 | location. */ | |
1446 | ||
1447 | if (boffset < 0 || boffset >= TYPE_LENGTH (type)) | |
1448 | { | |
1449 | CORE_ADDR address= value_address (val); | |
1450 | gdb::byte_vector buf (TYPE_LENGTH (baseclass)); | |
1451 | ||
1452 | if (target_read_memory (address + boffset, buf.data (), | |
1453 | TYPE_LENGTH (baseclass)) != 0) | |
1454 | skip = 1; | |
1455 | base_value = value_from_contents_and_address (baseclass, | |
1456 | buf.data (), | |
1457 | address + boffset); | |
1458 | baseclass = value_type (base_value); | |
1459 | boffset = 0; | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | if (options->prettyformat) | |
1464 | { | |
1465 | fprintf_filtered (stream, "\n"); | |
1466 | print_spaces_filtered (2 * recurse, stream); | |
1467 | } | |
1468 | fputs_filtered ("<", stream); | |
1469 | /* Not sure what the best notation is in the case where there is no | |
1470 | baseclass name. */ | |
1471 | ||
1472 | fputs_filtered (basename ? basename : "", stream); | |
1473 | fputs_filtered ("> = ", stream); | |
1474 | ||
1475 | if (skip < 0) | |
1476 | val_print_unavailable (stream); | |
1477 | else if (skip > 0) | |
1478 | val_print_invalid_address (stream); | |
1479 | else | |
1480 | pascal_object_print_value_fields | |
1481 | (base_value, stream, recurse, options, | |
1482 | (struct type **) obstack_base (&dont_print_vb_obstack), | |
1483 | 0); | |
1484 | fputs_filtered (", ", stream); | |
1485 | ||
1486 | flush_it: | |
1487 | ; | |
1488 | } | |
1489 | ||
1490 | if (dont_print_vb == 0) | |
1491 | { | |
1492 | /* Free the space used to deal with the printing | |
1493 | of this type from top level. */ | |
1494 | obstack_free (&dont_print_vb_obstack, last_dont_print); | |
1495 | /* Reset watermark so that we can continue protecting | |
1496 | ourselves from whatever we were protecting ourselves. */ | |
1497 | dont_print_vb_obstack = tmp_obstack; | |
1498 | } | |
1499 | } | |
1500 | ||
373a8247 PM |
1501 | /* Print value of a static member. |
1502 | To avoid infinite recursion when printing a class that contains | |
1503 | a static instance of the class, we keep the addresses of all printed | |
1504 | static member classes in an obstack and refuse to print them more | |
1505 | than once. | |
1506 | ||
79a45b7d | 1507 | VAL contains the value to print, STREAM, RECURSE, and OPTIONS |
373a8247 PM |
1508 | have the same meanings as in c_val_print. */ |
1509 | ||
1510 | static void | |
806048c6 | 1511 | pascal_object_print_static_field (struct value *val, |
79a45b7d TT |
1512 | struct ui_file *stream, |
1513 | int recurse, | |
1514 | const struct value_print_options *options) | |
373a8247 | 1515 | { |
806048c6 | 1516 | struct type *type = value_type (val); |
79a45b7d | 1517 | struct value_print_options opts; |
806048c6 | 1518 | |
686d4def PA |
1519 | if (value_entirely_optimized_out (val)) |
1520 | { | |
1521 | val_print_optimized_out (val, stream); | |
1522 | return; | |
1523 | } | |
1524 | ||
373a8247 PM |
1525 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT) |
1526 | { | |
42ae5230 | 1527 | CORE_ADDR *first_dont_print, addr; |
373a8247 PM |
1528 | int i; |
1529 | ||
1530 | first_dont_print | |
1531 | = (CORE_ADDR *) obstack_base (&dont_print_statmem_obstack); | |
1532 | i = (CORE_ADDR *) obstack_next_free (&dont_print_statmem_obstack) | |
1533 | - first_dont_print; | |
1534 | ||
1535 | while (--i >= 0) | |
1536 | { | |
42ae5230 | 1537 | if (value_address (val) == first_dont_print[i]) |
373a8247 | 1538 | { |
2dbc041e TT |
1539 | fputs_styled (_("\ |
1540 | <same as static member of an already seen type>"), | |
1541 | metadata_style.style (), stream); | |
373a8247 PM |
1542 | return; |
1543 | } | |
1544 | } | |
1545 | ||
42ae5230 TT |
1546 | addr = value_address (val); |
1547 | obstack_grow (&dont_print_statmem_obstack, (char *) &addr, | |
373a8247 PM |
1548 | sizeof (CORE_ADDR)); |
1549 | ||
f168693b | 1550 | type = check_typedef (type); |
490f124f PA |
1551 | pascal_object_print_value_fields (type, |
1552 | value_contents_for_printing (val), | |
1553 | value_embedded_offset (val), | |
1554 | addr, | |
1555 | stream, recurse, | |
1556 | val, options, NULL, 1); | |
373a8247 PM |
1557 | return; |
1558 | } | |
79a45b7d TT |
1559 | |
1560 | opts = *options; | |
1561 | opts.deref_ref = 0; | |
1562 | common_val_print (val, stream, recurse, &opts, current_language); | |
373a8247 PM |
1563 | } |
1564 | ||
6c265988 | 1565 | void _initialize_pascal_valprint (); |
373a8247 | 1566 | void |
6c265988 | 1567 | _initialize_pascal_valprint () |
373a8247 | 1568 | { |
5bf193a2 | 1569 | add_setshow_boolean_cmd ("pascal_static-members", class_support, |
79a45b7d | 1570 | &user_print_options.pascal_static_field_print, _("\ |
5bf193a2 AC |
1571 | Set printing of pascal static members."), _("\ |
1572 | Show printing of pascal static members."), NULL, | |
1573 | NULL, | |
920d2a44 | 1574 | show_pascal_static_field_print, |
5bf193a2 | 1575 | &setprintlist, &showprintlist); |
373a8247 | 1576 | } |