Commit | Line | Data |
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14f9c5c9 AS |
1 | /* Support for printing Ada values for GDB, the GNU debugger. |
2 | Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001 | |
3 | Free Software Foundation, Inc. | |
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 2 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, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
21 | #include <ctype.h> | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "expression.h" | |
26 | #include "value.h" | |
27 | #include "demangle.h" | |
28 | #include "valprint.h" | |
29 | #include "language.h" | |
30 | #include "annotate.h" | |
31 | #include "ada-lang.h" | |
32 | #include "c-lang.h" | |
33 | ||
34 | /* Encapsulates arguments to ada_val_print. */ | |
35 | struct ada_val_print_args { | |
36 | struct type* type; | |
37 | char* valaddr0; | |
38 | int embedded_offset; | |
39 | CORE_ADDR address; | |
40 | struct ui_file *stream; | |
41 | int format; | |
42 | int deref_ref; | |
43 | int recurse; | |
44 | enum val_prettyprint pretty; | |
45 | }; | |
46 | ||
47 | extern int inspect_it; | |
48 | extern unsigned int repeat_count_threshold; | |
49 | ||
50 | static void print_record (struct type*, char*, struct ui_file*, int, | |
51 | int, enum val_prettyprint); | |
52 | ||
53 | static int print_field_values (struct type*, char*, struct ui_file*, | |
54 | int, int, enum val_prettyprint, | |
55 | int, struct type*, char*); | |
56 | ||
57 | static int print_variant_part (struct type*, int, char*, | |
58 | struct ui_file*, int, int, enum val_prettyprint, | |
59 | int, struct type*, char*); | |
60 | ||
3b19021e AS |
61 | static void val_print_packed_array_elements (struct type*, char *valaddr, int, |
62 | struct ui_file*, int, int, | |
63 | enum val_prettyprint); | |
14f9c5c9 AS |
64 | |
65 | static void adjust_type_signedness (struct type*); | |
66 | ||
67 | static int ada_val_print_stub (PTR args0); | |
68 | ||
3b19021e AS |
69 | static int ada_val_print_1 (struct type*, char*, int, CORE_ADDR, struct ui_file*, |
70 | int, int, int, enum val_prettyprint); | |
14f9c5c9 AS |
71 | \f |
72 | ||
73 | /* Make TYPE unsigned if its range of values includes no negatives. */ | |
74 | static void | |
75 | adjust_type_signedness (type) | |
76 | struct type* type; | |
77 | { | |
78 | if (type != NULL && TYPE_CODE (type) == TYPE_CODE_RANGE | |
79 | && TYPE_LOW_BOUND (type) >= 0) | |
80 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
81 | } | |
82 | ||
83 | /* Assuming TYPE is a simple array type, prints its lower bound on STREAM, | |
84 | if non-standard (i.e., other than 1 for numbers, other than lower bound | |
85 | of index type for enumerated type). Returns 1 if something printed, | |
86 | otherwise 0. */ | |
87 | ||
88 | static int | |
ebf56fd3 | 89 | print_optional_low_bound (struct ui_file *stream, struct type *type) |
14f9c5c9 AS |
90 | { |
91 | struct type *index_type; | |
92 | long low_bound; | |
93 | ||
94 | index_type = TYPE_INDEX_TYPE (type); | |
95 | low_bound = 0; | |
96 | ||
97 | if (index_type == NULL) | |
98 | return 0; | |
99 | if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) | |
100 | { | |
101 | low_bound = TYPE_LOW_BOUND (index_type); | |
102 | index_type = TYPE_TARGET_TYPE (index_type); | |
103 | } | |
104 | else | |
105 | return 0; | |
106 | ||
107 | switch (TYPE_CODE (index_type)) { | |
108 | case TYPE_CODE_ENUM: | |
109 | if (low_bound == TYPE_FIELD_BITPOS (index_type, 0)) | |
110 | return 0; | |
111 | break; | |
112 | case TYPE_CODE_UNDEF: | |
113 | index_type = builtin_type_long; | |
114 | /* FALL THROUGH */ | |
115 | default: | |
116 | if (low_bound == 1) | |
117 | return 0; | |
118 | break; | |
119 | } | |
120 | ||
121 | ada_print_scalar (index_type, (LONGEST) low_bound, stream); | |
122 | fprintf_filtered (stream, " => "); | |
123 | return 1; | |
124 | } | |
125 | ||
126 | /* Version of val_print_array_elements for GNAT-style packed arrays. | |
127 | Prints elements of packed array of type TYPE at bit offset | |
128 | BITOFFSET from VALADDR on STREAM. Formats according to FORMAT and | |
129 | separates with commas. RECURSE is the recursion (nesting) level. | |
130 | If PRETTY, uses "prettier" format. TYPE must have been decoded (as | |
131 | by ada_coerce_to_simple_array). */ | |
132 | ||
133 | static void | |
ebf56fd3 AS |
134 | val_print_packed_array_elements (struct type *type, char *valaddr, |
135 | int bitoffset, struct ui_file *stream, | |
136 | int format, int recurse, | |
137 | enum val_prettyprint pretty) | |
14f9c5c9 AS |
138 | { |
139 | unsigned int i; | |
140 | unsigned int things_printed = 0; | |
141 | unsigned len; | |
142 | struct type *elttype; | |
143 | unsigned eltlen; | |
144 | /* Position of the array element we are examining to see | |
145 | whether it is repeated. */ | |
146 | unsigned int rep1; | |
147 | /* Number of repetitions we have detected so far. */ | |
148 | unsigned int reps; | |
149 | unsigned long bitsize = TYPE_FIELD_BITSIZE (type, 0); | |
150 | struct value* mark = value_mark (); | |
151 | ||
152 | elttype = TYPE_TARGET_TYPE (type); | |
153 | eltlen = TYPE_LENGTH (check_typedef (elttype)); | |
154 | ||
155 | { | |
156 | LONGEST low, high; | |
157 | if (get_discrete_bounds (TYPE_FIELD_TYPE (type, 0), &low, &high) < 0) | |
158 | len = 1; | |
159 | else | |
160 | len = high - low + 1; | |
161 | } | |
162 | ||
163 | i = 0; | |
164 | annotate_array_section_begin (i, elttype); | |
165 | ||
166 | while (i < len && things_printed < print_max) | |
167 | { | |
168 | struct value *v0, *v1; | |
169 | int i0; | |
170 | ||
171 | if (i != 0) | |
172 | { | |
173 | if (prettyprint_arrays) | |
174 | { | |
175 | fprintf_filtered (stream, ",\n"); | |
176 | print_spaces_filtered (2 + 2 * recurse, stream); | |
177 | } | |
178 | else | |
179 | { | |
180 | fprintf_filtered (stream, ", "); | |
181 | } | |
182 | } | |
183 | wrap_here (n_spaces (2 + 2 * recurse)); | |
184 | ||
185 | i0 = i; | |
186 | v0 = ada_value_primitive_packed_val (NULL, valaddr, | |
187 | (i0 * bitsize) / HOST_CHAR_BIT, | |
188 | (i0 * bitsize) % HOST_CHAR_BIT, | |
189 | bitsize, elttype); | |
190 | while (1) | |
191 | { | |
192 | i += 1; | |
193 | if (i >= len) | |
194 | break; | |
195 | v1 = ada_value_primitive_packed_val (NULL, valaddr, | |
196 | (i * bitsize) / HOST_CHAR_BIT, | |
197 | (i * bitsize) % HOST_CHAR_BIT, | |
198 | bitsize, elttype); | |
199 | if (memcmp (VALUE_CONTENTS (v0), VALUE_CONTENTS (v1), eltlen) | |
200 | != 0) | |
201 | break; | |
202 | } | |
203 | ||
204 | if (i - i0 > repeat_count_threshold) | |
205 | { | |
206 | val_print (elttype, VALUE_CONTENTS (v0), 0, 0, stream, format, | |
207 | 0, recurse + 1, pretty); | |
208 | annotate_elt_rep (i - i0); | |
209 | fprintf_filtered (stream, " <repeats %u times>", i - i0); | |
210 | annotate_elt_rep_end (); | |
211 | ||
212 | } | |
213 | else | |
214 | { | |
215 | int j; | |
216 | for (j = i0; j < i; j += 1) | |
217 | { | |
218 | if (j > i0) | |
219 | { | |
220 | if (prettyprint_arrays) | |
221 | { | |
222 | fprintf_filtered (stream, ",\n"); | |
223 | print_spaces_filtered (2 + 2 * recurse, stream); | |
224 | } | |
225 | else | |
226 | { | |
227 | fprintf_filtered (stream, ", "); | |
228 | } | |
229 | wrap_here (n_spaces (2 + 2 * recurse)); | |
230 | } | |
231 | val_print (elttype, VALUE_CONTENTS (v0), 0, 0, stream, format, | |
232 | 0, recurse + 1, pretty); | |
233 | annotate_elt (); | |
234 | } | |
235 | } | |
236 | things_printed += i - i0; | |
237 | } | |
238 | annotate_array_section_end (); | |
239 | if (i < len) | |
240 | { | |
241 | fprintf_filtered (stream, "..."); | |
242 | } | |
243 | ||
244 | value_free_to_mark (mark); | |
245 | } | |
246 | ||
247 | static struct type* | |
ebf56fd3 | 248 | printable_val_type (struct type* type, char* valaddr) |
14f9c5c9 AS |
249 | { |
250 | return ada_to_fixed_type (ada_aligned_type (type), valaddr, 0, NULL); | |
251 | } | |
252 | ||
253 | /* Print the character C on STREAM as part of the contents of a literal | |
254 | string whose delimiter is QUOTER. TYPE_LEN is the length in bytes | |
255 | (1 or 2) of the character. */ | |
256 | ||
257 | void | |
ebf56fd3 | 258 | ada_emit_char (int c, struct ui_file *stream, int quoter, int type_len) |
14f9c5c9 AS |
259 | { |
260 | if (type_len != 2) | |
261 | type_len = 1; | |
262 | ||
263 | c &= (1 << (type_len * TARGET_CHAR_BIT)) - 1; | |
264 | ||
265 | if (isascii (c) && isprint (c)) | |
266 | { | |
267 | if (c == quoter && c == '"') | |
268 | fprintf_filtered (stream, "[\"%c\"]", quoter); | |
269 | else | |
270 | fprintf_filtered (stream, "%c", c); | |
271 | } | |
272 | else | |
273 | fprintf_filtered (stream, "[\"%0*x\"]", type_len*2, c); | |
274 | } | |
275 | ||
276 | /* Character #I of STRING, given that TYPE_LEN is the size in bytes (1 | |
277 | or 2) of a character. */ | |
278 | ||
279 | static int | |
ebf56fd3 | 280 | char_at (char* string, int i, int type_len) |
14f9c5c9 AS |
281 | { |
282 | if (type_len == 1) | |
283 | return string[i]; | |
284 | else | |
285 | return (int) extract_unsigned_integer (string + 2*i, 2); | |
286 | } | |
287 | ||
288 | void | |
ebf56fd3 | 289 | ada_printchar (int c, struct ui_file *stream) |
14f9c5c9 AS |
290 | { |
291 | fputs_filtered ("'", stream); | |
292 | ada_emit_char (c, stream, '\'', 1); | |
293 | fputs_filtered ("'", stream); | |
294 | } | |
295 | ||
296 | /* [From print_type_scalar in typeprint.c]. Print VAL on STREAM in a | |
297 | form appropriate for TYPE. */ | |
298 | ||
299 | void | |
ebf56fd3 | 300 | ada_print_scalar (struct type *type, LONGEST val, struct ui_file *stream) |
14f9c5c9 AS |
301 | { |
302 | unsigned int i; | |
303 | unsigned len; | |
304 | ||
305 | CHECK_TYPEDEF (type); | |
306 | ||
307 | switch (TYPE_CODE (type)) | |
308 | { | |
309 | ||
310 | case TYPE_CODE_ENUM: | |
311 | len = TYPE_NFIELDS (type); | |
312 | for (i = 0; i < len; i++) | |
313 | { | |
314 | if (TYPE_FIELD_BITPOS (type, i) == val) | |
315 | { | |
316 | break; | |
317 | } | |
318 | } | |
319 | if (i < len) | |
320 | { | |
321 | fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream); | |
322 | } | |
323 | else | |
324 | { | |
325 | print_longest (stream, 'd', 0, val); | |
326 | } | |
327 | break; | |
328 | ||
329 | case TYPE_CODE_INT: | |
330 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val); | |
331 | break; | |
332 | ||
333 | case TYPE_CODE_CHAR: | |
334 | LA_PRINT_CHAR ((unsigned char) val, stream); | |
335 | break; | |
336 | ||
337 | case TYPE_CODE_BOOL: | |
338 | fprintf_filtered (stream, val ? "true" : "false"); | |
339 | break; | |
340 | ||
341 | case TYPE_CODE_RANGE: | |
342 | ada_print_scalar (TYPE_TARGET_TYPE (type), val, stream); | |
343 | return; | |
344 | ||
345 | case TYPE_CODE_UNDEF: | |
346 | case TYPE_CODE_PTR: | |
347 | case TYPE_CODE_ARRAY: | |
348 | case TYPE_CODE_STRUCT: | |
349 | case TYPE_CODE_UNION: | |
350 | case TYPE_CODE_FUNC: | |
351 | case TYPE_CODE_FLT: | |
352 | case TYPE_CODE_VOID: | |
353 | case TYPE_CODE_SET: | |
354 | case TYPE_CODE_STRING: | |
355 | case TYPE_CODE_ERROR: | |
356 | case TYPE_CODE_MEMBER: | |
357 | case TYPE_CODE_METHOD: | |
358 | case TYPE_CODE_REF: | |
359 | warning ("internal error: unhandled type in ada_print_scalar"); | |
360 | break; | |
361 | ||
362 | default: | |
363 | error ("Invalid type code in symbol table."); | |
364 | } | |
365 | gdb_flush (stream); | |
366 | } | |
367 | ||
368 | /* Print the character string STRING, printing at most LENGTH characters. | |
369 | Printing stops early if the number hits print_max; repeat counts | |
370 | are printed as appropriate. Print ellipses at the end if we | |
371 | had to stop before printing LENGTH characters, or if | |
372 | FORCE_ELLIPSES. TYPE_LEN is the length (1 or 2) of the character type. | |
373 | */ | |
374 | ||
375 | static void | |
ebf56fd3 AS |
376 | printstr (struct ui_file *stream, char *string, unsigned int length, |
377 | int force_ellipses, int type_len) | |
14f9c5c9 AS |
378 | { |
379 | unsigned int i; | |
380 | unsigned int things_printed = 0; | |
381 | int in_quotes = 0; | |
382 | int need_comma = 0; | |
383 | ||
384 | if (length == 0) | |
385 | { | |
386 | fputs_filtered ("\"\"", stream); | |
387 | return; | |
388 | } | |
389 | ||
390 | for (i = 0; i < length && things_printed < print_max; i += 1) | |
391 | { | |
392 | /* Position of the character we are examining | |
393 | to see whether it is repeated. */ | |
394 | unsigned int rep1; | |
395 | /* Number of repetitions we have detected so far. */ | |
396 | unsigned int reps; | |
397 | ||
398 | QUIT; | |
399 | ||
400 | if (need_comma) | |
401 | { | |
402 | fputs_filtered (", ", stream); | |
403 | need_comma = 0; | |
404 | } | |
405 | ||
406 | rep1 = i + 1; | |
407 | reps = 1; | |
408 | while (rep1 < length && | |
409 | char_at(string, rep1, type_len) == char_at (string, i, type_len)) | |
410 | { | |
411 | rep1 += 1; | |
412 | reps += 1; | |
413 | } | |
414 | ||
415 | if (reps > repeat_count_threshold) | |
416 | { | |
417 | if (in_quotes) | |
418 | { | |
419 | if (inspect_it) | |
420 | fputs_filtered ("\\\", ", stream); | |
421 | else | |
422 | fputs_filtered ("\", ", stream); | |
423 | in_quotes = 0; | |
424 | } | |
425 | fputs_filtered ("'", stream); | |
426 | ada_emit_char (char_at (string, i, type_len), stream, '\'', type_len); | |
427 | fputs_filtered ("'", stream); | |
428 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
429 | i = rep1 - 1; | |
430 | things_printed += repeat_count_threshold; | |
431 | need_comma = 1; | |
432 | } | |
433 | else | |
434 | { | |
435 | if (!in_quotes) | |
436 | { | |
437 | if (inspect_it) | |
438 | fputs_filtered ("\\\"", stream); | |
439 | else | |
440 | fputs_filtered ("\"", stream); | |
441 | in_quotes = 1; | |
442 | } | |
443 | ada_emit_char (char_at (string, i, type_len), stream, '"', | |
444 | type_len); | |
445 | things_printed += 1; | |
446 | } | |
447 | } | |
448 | ||
449 | /* Terminate the quotes if necessary. */ | |
450 | if (in_quotes) | |
451 | { | |
452 | if (inspect_it) | |
453 | fputs_filtered ("\\\"", stream); | |
454 | else | |
455 | fputs_filtered ("\"", stream); | |
456 | } | |
457 | ||
458 | if (force_ellipses || i < length) | |
459 | fputs_filtered ("...", stream); | |
460 | } | |
461 | ||
462 | void | |
ebf56fd3 AS |
463 | ada_printstr (struct ui_file *stream, char *string, unsigned int length, |
464 | int force_ellipses, int width) | |
14f9c5c9 AS |
465 | { |
466 | printstr (stream, string, length, force_ellipses, width); | |
467 | } | |
468 | ||
469 | ||
470 | /* Print data of type TYPE located at VALADDR (within GDB), which came from | |
471 | the inferior at address ADDRESS, onto stdio stream STREAM according to | |
472 | FORMAT (a letter as for the printf % codes or 0 for natural format). | |
473 | The data at VALADDR is in target byte order. | |
474 | ||
475 | If the data is printed as a string, returns the number of string characters | |
476 | printed. | |
477 | ||
478 | If DEREF_REF is nonzero, then dereference references, otherwise just print | |
479 | them like pointers. | |
480 | ||
481 | RECURSE indicates the amount of indentation to supply before | |
482 | continuation lines; this amount is roughly twice the value of RECURSE. | |
483 | ||
484 | When PRETTY is non-zero, prints record fields on separate lines. | |
485 | (For some reason, the current version of gdb instead uses a global | |
486 | variable---prettyprint_arrays--- to causes a similar effect on | |
487 | arrays.) */ | |
488 | ||
489 | int | |
ebf56fd3 AS |
490 | ada_val_print (struct type* type, char* valaddr0, int embedded_offset, |
491 | CORE_ADDR address, struct ui_file *stream, int format, | |
492 | int deref_ref, int recurse, enum val_prettyprint pretty) | |
14f9c5c9 AS |
493 | { |
494 | struct ada_val_print_args args; | |
495 | args.type = type; args.valaddr0 = valaddr0; | |
496 | args.embedded_offset = embedded_offset; | |
497 | args.address = address; | |
498 | args.stream = stream; | |
499 | args.format = format; | |
500 | args.deref_ref = deref_ref; | |
501 | args.recurse = recurse; | |
502 | args.pretty = pretty; | |
503 | ||
504 | return catch_errors (ada_val_print_stub, &args, NULL, RETURN_MASK_ALL); | |
505 | } | |
506 | ||
507 | /* Helper for ada_val_print; used as argument to catch_errors to | |
508 | unmarshal the arguments to ada_val_print_1, which does the work. */ | |
509 | static int | |
510 | ada_val_print_stub (PTR args0) | |
511 | { | |
512 | struct ada_val_print_args* argsp = (struct ada_val_print_args*) args0; | |
513 | return ada_val_print_1 (argsp->type, argsp->valaddr0, argsp->embedded_offset, | |
514 | argsp->address, argsp->stream, argsp->format, | |
515 | argsp->deref_ref, argsp->recurse, | |
516 | argsp->pretty); | |
517 | } | |
518 | ||
519 | /* See the comment on ada_val_print. This function differs in that it | |
520 | * does not catch evaluation errors (leaving that to ada_val_print). */ | |
521 | ||
522 | static int | |
ebf56fd3 AS |
523 | ada_val_print_1 (struct type* type, char* valaddr0, int embedded_offset, |
524 | CORE_ADDR address, struct ui_file *stream, int format, | |
525 | int deref_ref, int recurse, enum val_prettyprint pretty) | |
14f9c5c9 AS |
526 | { |
527 | unsigned int len; | |
528 | int i; | |
529 | struct type *elttype; | |
530 | unsigned int eltlen; | |
531 | LONGEST val; | |
532 | CORE_ADDR addr; | |
533 | char* valaddr = valaddr0 + embedded_offset; | |
534 | ||
535 | CHECK_TYPEDEF (type); | |
536 | ||
537 | if (ada_is_array_descriptor (type) || ada_is_packed_array_type (type)) | |
538 | { | |
539 | int retn; | |
540 | struct value* mark = value_mark (); | |
541 | struct value* val; | |
542 | val = value_from_contents_and_address (type, valaddr, address); | |
543 | val = ada_coerce_to_simple_array_ptr (val); | |
544 | if (val == NULL) | |
545 | { | |
546 | fprintf_filtered (stream, "(null)"); | |
547 | retn = 0; | |
548 | } | |
549 | else | |
550 | retn = ada_val_print_1 (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, | |
551 | VALUE_ADDRESS (val), stream, format, | |
552 | deref_ref, recurse, pretty); | |
553 | value_free_to_mark (mark); | |
554 | return retn; | |
555 | } | |
556 | ||
557 | valaddr = ada_aligned_value_addr (type, valaddr); | |
558 | embedded_offset -= valaddr - valaddr0 - embedded_offset; | |
559 | type = printable_val_type (type, valaddr); | |
560 | ||
561 | switch (TYPE_CODE (type)) | |
562 | { | |
563 | default: | |
564 | return c_val_print (type, valaddr0, embedded_offset, address, stream, | |
565 | format, deref_ref, recurse, pretty); | |
566 | ||
567 | case TYPE_CODE_INT: | |
568 | case TYPE_CODE_RANGE: | |
569 | if (ada_is_fixed_point_type (type)) | |
570 | { | |
571 | LONGEST v = unpack_long (type, valaddr); | |
572 | int len = TYPE_LENGTH (type); | |
573 | ||
574 | fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g", | |
575 | (double) ada_fixed_to_float (type, v)); | |
576 | return 0; | |
577 | } | |
578 | else if (ada_is_vax_floating_type (type)) | |
579 | { | |
580 | struct value* val = | |
581 | value_from_contents_and_address (type, valaddr, address); | |
582 | struct value* func = ada_vax_float_print_function (type); | |
583 | if (func != 0) | |
584 | { | |
585 | static struct type* parray_of_char = NULL; | |
586 | struct value* printable_val; | |
587 | ||
588 | if (parray_of_char == NULL) | |
589 | parray_of_char = | |
590 | make_pointer_type | |
591 | (create_array_type | |
592 | (NULL, builtin_type_char, | |
593 | create_range_type (NULL, builtin_type_int, 0, 32)), | |
594 | NULL); | |
595 | ||
596 | printable_val = | |
597 | value_ind (value_cast (parray_of_char, | |
598 | call_function_by_hand (func, 1, &val))); | |
599 | ||
600 | fprintf_filtered (stream, "%s", VALUE_CONTENTS (printable_val)); | |
601 | return 0; | |
602 | } | |
603 | /* No special printing function. Do as best we can. */ | |
604 | } | |
605 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
606 | { | |
607 | struct type* target_type = TYPE_TARGET_TYPE (type); | |
608 | if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type)) | |
609 | { | |
610 | /* Obscure case of range type that has different length from | |
611 | its base type. Perform a conversion, or we will get a | |
612 | nonsense value. Actually, we could use the same | |
613 | code regardless of lengths; I'm just avoiding a cast. */ | |
614 | struct value* v = | |
615 | value_cast (target_type, | |
616 | value_from_contents_and_address (type, valaddr, 0)); | |
617 | return ada_val_print_1 (target_type, VALUE_CONTENTS (v), 0, 0, | |
618 | stream, format, 0, recurse + 1, pretty); | |
619 | } | |
620 | else | |
621 | return ada_val_print_1 (TYPE_TARGET_TYPE (type), | |
622 | valaddr0, embedded_offset, | |
623 | address, stream, format, deref_ref, | |
624 | recurse, pretty); | |
625 | } | |
626 | else | |
627 | { | |
628 | format = format ? format : output_format; | |
629 | if (format) | |
630 | { | |
631 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
632 | } | |
633 | else | |
634 | { | |
635 | val_print_type_code_int (type, valaddr, stream); | |
636 | if (ada_is_character_type (type)) | |
637 | { | |
638 | fputs_filtered (" ", stream); | |
639 | ada_printchar ((unsigned char) unpack_long (type, valaddr), | |
640 | stream); | |
641 | } | |
642 | } | |
643 | return 0; | |
644 | } | |
645 | ||
646 | case TYPE_CODE_ENUM: | |
647 | if (format) | |
648 | { | |
649 | print_scalar_formatted (valaddr, type, format, 0, stream); | |
650 | break; | |
651 | } | |
652 | len = TYPE_NFIELDS (type); | |
653 | val = unpack_long (type, valaddr); | |
654 | for (i = 0; i < len; i++) | |
655 | { | |
656 | QUIT; | |
657 | if (val == TYPE_FIELD_BITPOS (type, i)) | |
658 | { | |
659 | break; | |
660 | } | |
661 | } | |
662 | if (i < len) | |
663 | { | |
664 | const char* name = ada_enum_name (TYPE_FIELD_NAME (type, i)); | |
665 | if (name[0] == '\'') | |
666 | fprintf_filtered (stream, "%ld %s", (long) val, name); | |
667 | else | |
668 | fputs_filtered (name, stream); | |
669 | } | |
670 | else | |
671 | { | |
672 | print_longest (stream, 'd', 0, val); | |
673 | } | |
674 | break; | |
675 | ||
676 | case TYPE_CODE_UNION: | |
677 | case TYPE_CODE_STRUCT: | |
678 | if (ada_is_bogus_array_descriptor (type)) | |
679 | { | |
680 | fprintf_filtered (stream, "(...?)"); | |
681 | return 0; | |
682 | } | |
683 | else | |
684 | { | |
685 | print_record (type, valaddr, stream, format, | |
686 | recurse, pretty); | |
687 | return 0; | |
688 | } | |
689 | ||
690 | case TYPE_CODE_ARRAY: | |
691 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > 0) | |
692 | { | |
693 | elttype = TYPE_TARGET_TYPE (type); | |
694 | eltlen = TYPE_LENGTH (elttype); | |
695 | len = TYPE_LENGTH (type) / eltlen; | |
696 | ||
697 | /* For an array of chars, print with string syntax. */ | |
698 | if (ada_is_string_type (type) | |
699 | && (format == 0 || format == 's')) | |
700 | { | |
701 | if (prettyprint_arrays) | |
702 | { | |
703 | print_spaces_filtered (2 + 2 * recurse, stream); | |
704 | } | |
705 | /* If requested, look for the first null char and only print | |
706 | elements up to it. */ | |
707 | if (stop_print_at_null) | |
708 | { | |
709 | int temp_len; | |
710 | ||
711 | /* Look for a NULL char. */ | |
712 | for (temp_len = 0; | |
713 | temp_len < len && temp_len < print_max | |
714 | && char_at (valaddr, temp_len, eltlen) != 0; | |
715 | temp_len += 1); | |
716 | len = temp_len; | |
717 | } | |
718 | ||
719 | printstr (stream, valaddr, len, 0, eltlen); | |
720 | } | |
721 | else | |
722 | { | |
723 | len = 0; | |
724 | fprintf_filtered (stream, "("); | |
725 | print_optional_low_bound (stream, type); | |
726 | if (TYPE_FIELD_BITSIZE (type, 0) > 0) | |
727 | val_print_packed_array_elements (type, valaddr, 0, stream, | |
728 | format, recurse, | |
729 | pretty); | |
730 | else | |
731 | val_print_array_elements (type, valaddr, address, stream, | |
732 | format, deref_ref, recurse, | |
733 | pretty, 0); | |
734 | fprintf_filtered (stream, ")"); | |
735 | } | |
736 | gdb_flush (stream); | |
737 | return len; | |
738 | } | |
739 | ||
740 | case TYPE_CODE_REF: | |
741 | elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
742 | if (addressprint) | |
743 | { | |
744 | fprintf_filtered (stream, "@"); | |
745 | print_address_numeric | |
746 | (extract_address (valaddr, | |
747 | TARGET_PTR_BIT / HOST_CHAR_BIT), 1, stream); | |
748 | if (deref_ref) | |
749 | fputs_filtered (": ", stream); | |
750 | } | |
751 | /* De-reference the reference */ | |
752 | if (deref_ref) | |
753 | { | |
754 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
755 | { | |
756 | LONGEST deref_val_int = (LONGEST) | |
757 | unpack_pointer (lookup_pointer_type (builtin_type_void), | |
758 | valaddr); | |
759 | if (deref_val_int != 0) | |
760 | { | |
761 | struct value* deref_val = | |
762 | ada_value_ind (value_from_longest | |
763 | (lookup_pointer_type (elttype), | |
764 | deref_val_int)); | |
765 | val_print (VALUE_TYPE (deref_val), | |
766 | VALUE_CONTENTS (deref_val), 0, | |
767 | VALUE_ADDRESS (deref_val), stream, format, | |
768 | deref_ref, recurse + 1, pretty); | |
769 | } | |
770 | else | |
771 | fputs_filtered ("(null)", stream); | |
772 | } | |
773 | else | |
774 | fputs_filtered ("???", stream); | |
775 | } | |
776 | break; | |
777 | } | |
778 | return 0; | |
779 | } | |
780 | ||
781 | static int | |
ebf56fd3 AS |
782 | print_variant_part (struct type *type, int field_num, char *valaddr, |
783 | struct ui_file *stream, int format, int recurse, | |
784 | enum val_prettyprint pretty, int comma_needed, | |
785 | struct type *outer_type, char *outer_valaddr) | |
14f9c5c9 AS |
786 | { |
787 | struct type *var_type = TYPE_FIELD_TYPE (type, field_num); | |
788 | int which = | |
789 | ada_which_variant_applies (var_type, outer_type, outer_valaddr); | |
790 | ||
791 | if (which < 0) | |
792 | return 0; | |
793 | else | |
794 | return print_field_values | |
795 | (TYPE_FIELD_TYPE (var_type, which), | |
796 | valaddr + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT | |
797 | + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT, | |
798 | stream, format, recurse, pretty, | |
799 | comma_needed, outer_type, outer_valaddr); | |
800 | } | |
801 | ||
802 | int | |
ebf56fd3 AS |
803 | ada_value_print (struct value* val0, struct ui_file *stream, int format, |
804 | enum val_prettyprint pretty) | |
14f9c5c9 AS |
805 | { |
806 | char* valaddr = VALUE_CONTENTS (val0); | |
807 | CORE_ADDR address = VALUE_ADDRESS (val0) + VALUE_OFFSET (val0); | |
808 | struct type* type = | |
809 | ada_to_fixed_type (VALUE_TYPE (val0), valaddr, address, NULL); | |
810 | struct value* val = value_from_contents_and_address (type, valaddr, address); | |
811 | ||
812 | /* If it is a pointer, indicate what it points to. */ | |
813 | if (TYPE_CODE (type) == TYPE_CODE_PTR || | |
814 | TYPE_CODE (type) == TYPE_CODE_REF) | |
815 | { | |
816 | /* Hack: remove (char *) for char strings. Their | |
817 | type is indicated by the quoted string anyway. */ | |
818 | if (TYPE_CODE (type) == TYPE_CODE_PTR && | |
819 | TYPE_LENGTH (TYPE_TARGET_TYPE (type)) == sizeof(char) && | |
820 | TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_INT && | |
821 | !TYPE_UNSIGNED (TYPE_TARGET_TYPE (type))) | |
822 | { | |
823 | /* Print nothing */ | |
824 | } | |
825 | else | |
826 | { | |
827 | fprintf_filtered (stream, "("); | |
828 | type_print (type, "", stream, -1); | |
829 | fprintf_filtered (stream, ") "); | |
830 | } | |
831 | } | |
832 | else if (ada_is_array_descriptor (type)) | |
833 | { | |
834 | fprintf_filtered (stream, "("); | |
835 | type_print (type, "", stream, -1); | |
836 | fprintf_filtered (stream, ") "); | |
837 | } | |
838 | else if (ada_is_bogus_array_descriptor (type)) | |
839 | { | |
840 | fprintf_filtered (stream, "("); | |
841 | type_print (type, "", stream, -1); | |
842 | fprintf_filtered (stream, ") (...?)"); | |
843 | return 0; | |
844 | } | |
845 | return (val_print (type, VALUE_CONTENTS (val), 0, address, | |
846 | stream, format, 1, 0, pretty)); | |
847 | } | |
848 | ||
849 | static void | |
ebf56fd3 AS |
850 | print_record (struct type *type, char *valaddr, struct ui_file *stream, |
851 | int format, int recurse, enum val_prettyprint pretty) | |
14f9c5c9 AS |
852 | { |
853 | CHECK_TYPEDEF (type); | |
854 | ||
855 | fprintf_filtered (stream, "("); | |
856 | ||
857 | if (print_field_values (type, valaddr, stream, format, recurse, pretty, | |
858 | 0, type, valaddr) != 0 | |
859 | && pretty) | |
860 | { | |
861 | fprintf_filtered (stream, "\n"); | |
862 | print_spaces_filtered (2 * recurse, stream); | |
863 | } | |
864 | ||
865 | fprintf_filtered (stream, ")"); | |
866 | } | |
867 | ||
868 | /* Print out fields of value at VALADDR having structure type TYPE. | |
869 | ||
870 | TYPE, VALADDR, STREAM, FORMAT, RECURSE, and PRETTY have the | |
871 | same meanings as in ada_print_value and ada_val_print. | |
872 | ||
873 | OUTER_TYPE and OUTER_VALADDR give type and address of enclosing record | |
874 | (used to get discriminant values when printing variant parts). | |
875 | ||
876 | COMMA_NEEDED is 1 if fields have been printed at the current recursion | |
877 | level, so that a comma is needed before any field printed by this | |
878 | call. | |
879 | ||
880 | Returns 1 if COMMA_NEEDED or any fields were printed. */ | |
881 | ||
882 | static int | |
ebf56fd3 AS |
883 | print_field_values (struct type *type, char *valaddr, struct ui_file *stream, |
884 | int format, int recurse, enum val_prettyprint pretty, | |
885 | int comma_needed, struct type *outer_type, | |
886 | char *outer_valaddr) | |
14f9c5c9 AS |
887 | { |
888 | int i, len; | |
889 | ||
890 | len = TYPE_NFIELDS (type); | |
891 | ||
892 | for (i = 0; i < len; i += 1) | |
893 | { | |
894 | if (ada_is_ignored_field (type, i)) | |
895 | continue; | |
896 | ||
897 | if (ada_is_wrapper_field (type, i)) | |
898 | { | |
899 | comma_needed = | |
900 | print_field_values (TYPE_FIELD_TYPE (type, i), | |
901 | valaddr | |
902 | + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT, | |
903 | stream, format, recurse, pretty, | |
904 | comma_needed, type, valaddr); | |
905 | continue; | |
906 | } | |
907 | else if (ada_is_variant_part (type, i)) | |
908 | { | |
909 | comma_needed = | |
910 | print_variant_part (type, i, valaddr, | |
911 | stream, format, recurse, pretty, comma_needed, | |
912 | outer_type, outer_valaddr); | |
913 | continue; | |
914 | } | |
915 | ||
916 | if (comma_needed) | |
917 | fprintf_filtered (stream, ", "); | |
918 | comma_needed = 1; | |
919 | ||
920 | if (pretty) | |
921 | { | |
922 | fprintf_filtered (stream, "\n"); | |
923 | print_spaces_filtered (2 + 2 * recurse, stream); | |
924 | } | |
925 | else | |
926 | { | |
927 | wrap_here (n_spaces (2 + 2 * recurse)); | |
928 | } | |
929 | if (inspect_it) | |
930 | { | |
931 | if (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_PTR) | |
932 | fputs_filtered ("\"( ptr \"", stream); | |
933 | else | |
934 | fputs_filtered ("\"( nodef \"", stream); | |
935 | fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), | |
936 | language_cplus, DMGL_NO_OPTS); | |
937 | fputs_filtered ("\" \"", stream); | |
938 | fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i), | |
939 | language_cplus, DMGL_NO_OPTS); | |
940 | fputs_filtered ("\") \"", stream); | |
941 | } | |
942 | else | |
943 | { | |
944 | annotate_field_begin (TYPE_FIELD_TYPE (type, i)); | |
945 | fprintf_filtered (stream, "%.*s", | |
946 | ada_name_prefix_len (TYPE_FIELD_NAME (type, i)), | |
947 | TYPE_FIELD_NAME (type, i)); | |
948 | annotate_field_name_end (); | |
949 | fputs_filtered (" => ", stream); | |
950 | annotate_field_value (); | |
951 | } | |
952 | ||
953 | if (TYPE_FIELD_PACKED (type, i)) | |
954 | { | |
955 | struct value* v; | |
956 | ||
957 | /* Bitfields require special handling, especially due to byte | |
958 | order problems. */ | |
959 | if (TYPE_CPLUS_SPECIFIC (type) != NULL | |
960 | && TYPE_FIELD_IGNORE (type, i)) | |
961 | { | |
962 | fputs_filtered ("<optimized out or zero length>", stream); | |
963 | } | |
964 | else | |
965 | { | |
966 | int bit_pos = TYPE_FIELD_BITPOS (type, i); | |
967 | int bit_size = TYPE_FIELD_BITSIZE (type, i); | |
968 | ||
969 | adjust_type_signedness (TYPE_FIELD_TYPE (type, i)); | |
970 | v = ada_value_primitive_packed_val (NULL, valaddr, | |
971 | bit_pos / HOST_CHAR_BIT, | |
972 | bit_pos % HOST_CHAR_BIT, | |
973 | bit_size, | |
974 | TYPE_FIELD_TYPE (type, i)); | |
975 | val_print (TYPE_FIELD_TYPE(type, i), VALUE_CONTENTS (v), 0, 0, | |
976 | stream, format, 0, recurse + 1, pretty); | |
977 | } | |
978 | } | |
979 | else | |
980 | ada_val_print (TYPE_FIELD_TYPE (type, i), | |
981 | valaddr + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT, | |
982 | 0, 0, stream, format, 0, recurse + 1, pretty); | |
983 | annotate_field_end (); | |
984 | } | |
985 | ||
986 | return comma_needed; | |
987 | } |