File: | src/gnu/usr.bin/binutils/gdb/ada-valprint.c |
Warning: | line 314, column 3 Value stored to 'len' is never read |
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1 | /* Support for printing Ada values for GDB, the GNU debugger. |
2 | Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1997, 2001, |
3 | 2002, 2003, 2004. |
4 | Free Software Foundation, Inc. |
5 | |
6 | This file is part of GDB. |
7 | |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by |
10 | the Free Software Foundation; either version 2 of the License, or |
11 | (at your option) any later version. |
12 | |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | GNU General Public License for more details. |
17 | |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
21 | |
22 | #include <ctype.h> |
23 | #include "defs.h" |
24 | #include "gdb_string.h" |
25 | #include "symtab.h" |
26 | #include "gdbtypes.h" |
27 | #include "expression.h" |
28 | #include "value.h" |
29 | #include "demangle.h" |
30 | #include "valprint.h" |
31 | #include "language.h" |
32 | #include "annotate.h" |
33 | #include "ada-lang.h" |
34 | #include "c-lang.h" |
35 | #include "infcall.h" |
36 | |
37 | /* Encapsulates arguments to ada_val_print. */ |
38 | struct ada_val_print_args |
39 | { |
40 | struct type *type; |
41 | char *valaddr0; |
42 | int embedded_offset; |
43 | CORE_ADDR address; |
44 | struct ui_file *stream; |
45 | int format; |
46 | int deref_ref; |
47 | int recurse; |
48 | enum val_prettyprint pretty; |
49 | }; |
50 | |
51 | static void print_record (struct type *, char *, struct ui_file *, int, |
52 | int, enum val_prettyprint); |
53 | |
54 | static int print_field_values (struct type *, char *, struct ui_file *, |
55 | int, int, enum val_prettyprint, |
56 | int, struct type *, char *); |
57 | |
58 | static int print_variant_part (struct type *, int, char *, |
59 | struct ui_file *, int, int, |
60 | enum val_prettyprint, int, struct type *, |
61 | char *); |
62 | |
63 | static void val_print_packed_array_elements (struct type *, char *valaddr, |
64 | int, struct ui_file *, int, int, |
65 | enum val_prettyprint); |
66 | |
67 | static void adjust_type_signedness (struct type *); |
68 | |
69 | static int ada_val_print_stub (void *args0); |
70 | |
71 | static int ada_val_print_1 (struct type *, char *, int, CORE_ADDR, |
72 | struct ui_file *, int, int, int, |
73 | enum val_prettyprint); |
74 | static void ada_print_floating (char *, struct type *, struct ui_file *); |
75 | |
76 | |
77 | /* Make TYPE unsigned if its range of values includes no negatives. */ |
78 | static void |
79 | adjust_type_signedness (struct type *type) |
80 | { |
81 | if (type != NULL((void*)0) && TYPE_CODE (type)(type)->main_type->code == TYPE_CODE_RANGE |
82 | && TYPE_LOW_BOUND (type)(((type)->main_type->fields[0]).loc.bitpos) >= 0) |
83 | TYPE_FLAGS (type)(type)->main_type->flags |= TYPE_FLAG_UNSIGNED(1 << 0); |
84 | } |
85 | |
86 | /* Assuming TYPE is a simple, non-empty array type, prints its lower bound |
87 | on STREAM, if non-standard (i.e., other than 1 for numbers, other |
88 | than lower bound of index type for enumerated type). Returns 1 |
89 | if something printed, otherwise 0. */ |
90 | |
91 | static int |
92 | print_optional_low_bound (struct ui_file *stream, struct type *type) |
93 | { |
94 | struct type *index_type; |
95 | long low_bound; |
96 | |
97 | index_type = TYPE_INDEX_TYPE (type)(((type)->main_type->fields[0]).type); |
98 | low_bound = 0; |
99 | |
100 | if (index_type == NULL((void*)0)) |
101 | return 0; |
102 | if (TYPE_CODE (index_type)(index_type)->main_type->code == TYPE_CODE_RANGE) |
103 | { |
104 | low_bound = TYPE_LOW_BOUND (index_type)(((index_type)->main_type->fields[0]).loc.bitpos); |
105 | if (low_bound > TYPE_HIGH_BOUND (index_type)(((index_type)->main_type->fields[1]).loc.bitpos)) |
106 | return 0; |
107 | index_type = TYPE_TARGET_TYPE (index_type)(index_type)->main_type->target_type; |
108 | } |
109 | else |
110 | return 0; |
111 | |
112 | switch (TYPE_CODE (index_type)(index_type)->main_type->code) |
113 | { |
114 | case TYPE_CODE_ENUM: |
115 | if (low_bound == TYPE_FIELD_BITPOS (index_type, 0)(((index_type)->main_type->fields[0]).loc.bitpos)) |
116 | return 0; |
117 | break; |
118 | case TYPE_CODE_UNDEF: |
119 | index_type = builtin_type_long; |
120 | /* FALL THROUGH */ |
121 | default: |
122 | if (low_bound == 1) |
123 | return 0; |
124 | break; |
125 | } |
126 | |
127 | ada_print_scalar (index_type, (LONGESTlong) low_bound, stream); |
128 | fprintf_filtered (stream, " => "); |
129 | return 1; |
130 | } |
131 | |
132 | /* Version of val_print_array_elements for GNAT-style packed arrays. |
133 | Prints elements of packed array of type TYPE at bit offset |
134 | BITOFFSET from VALADDR on STREAM. Formats according to FORMAT and |
135 | separates with commas. RECURSE is the recursion (nesting) level. |
136 | If PRETTY, uses "prettier" format. TYPE must have been decoded (as |
137 | by ada_coerce_to_simple_array). */ |
138 | |
139 | static void |
140 | val_print_packed_array_elements (struct type *type, char *valaddr, |
141 | int bitoffset, struct ui_file *stream, |
142 | int format, int recurse, |
143 | enum val_prettyprint pretty) |
144 | { |
145 | unsigned int i; |
146 | unsigned int things_printed = 0; |
147 | unsigned len; |
148 | struct type *elttype; |
149 | unsigned eltlen; |
150 | unsigned long bitsize = TYPE_FIELD_BITSIZE (type, 0)(((type)->main_type->fields[0]).bitsize); |
151 | struct value *mark = value_mark (); |
152 | |
153 | elttype = TYPE_TARGET_TYPE (type)(type)->main_type->target_type; |
154 | eltlen = TYPE_LENGTH (check_typedef (elttype))(check_typedef (elttype))->length; |
155 | |
156 | { |
157 | LONGESTlong low, high; |
158 | if (get_discrete_bounds (TYPE_FIELD_TYPE (type, 0)(((type)->main_type->fields[0]).type), &low, &high) < 0) |
159 | len = 1; |
160 | else |
161 | len = high - low + 1; |
162 | } |
163 | |
164 | i = 0; |
165 | annotate_array_section_begin (i, elttype); |
166 | |
167 | while (i < len && things_printed < print_max) |
168 | { |
169 | struct value *v0, *v1; |
170 | int i0; |
171 | |
172 | if (i != 0) |
173 | { |
174 | if (prettyprint_arrays) |
175 | { |
176 | fprintf_filtered (stream, ",\n"); |
177 | print_spaces_filtered (2 + 2 * recurse, stream); |
178 | } |
179 | else |
180 | { |
181 | fprintf_filtered (stream, ", "); |
182 | } |
183 | } |
184 | wrap_here (n_spaces (2 + 2 * recurse)); |
185 | |
186 | i0 = i; |
187 | v0 = ada_value_primitive_packed_val (NULL((void*)0), valaddr, |
188 | (i0 * bitsize) / HOST_CHAR_BIT8, |
189 | (i0 * bitsize) % HOST_CHAR_BIT8, |
190 | bitsize, elttype); |
191 | while (1) |
192 | { |
193 | i += 1; |
194 | if (i >= len) |
195 | break; |
196 | v1 = ada_value_primitive_packed_val (NULL((void*)0), valaddr, |
197 | (i * bitsize) / HOST_CHAR_BIT8, |
198 | (i * bitsize) % HOST_CHAR_BIT8, |
199 | bitsize, elttype); |
200 | if (memcmp (VALUE_CONTENTS (v0)((void)((v0)->lazy && value_fetch_lazy(v0)), ((char *) (v0)->aligner.contents + (v0)->embedded_offset)), VALUE_CONTENTS (v1)((void)((v1)->lazy && value_fetch_lazy(v1)), ((char *) (v1)->aligner.contents + (v1)->embedded_offset)), eltlen) != 0) |
201 | break; |
202 | } |
203 | |
204 | if (i - i0 > repeat_count_threshold) |
205 | { |
206 | val_print (elttype, VALUE_CONTENTS (v0)((void)((v0)->lazy && value_fetch_lazy(v0)), ((char *) (v0)->aligner.contents + (v0)->embedded_offset)), 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)((void)((v0)->lazy && value_fetch_lazy(v0)), ((char *) (v0)->aligner.contents + (v0)->embedded_offset)), 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 * |
248 | printable_val_type (struct type *type, char *valaddr) |
249 | { |
250 | return ada_to_fixed_type (ada_aligned_type (type), valaddr, 0, NULL((void*)0)); |
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 |
258 | ada_emit_char (int c, struct ui_file *stream, int quoter, int type_len) |
259 | { |
260 | if (type_len != 2) |
261 | type_len = 1; |
262 | |
263 | c &= (1 << (type_len * TARGET_CHAR_BIT8)) - 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 |
280 | char_at (char *string, int i, int type_len) |
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 | /* Wrapper around memcpy to make it legal argument to ui_file_put */ |
289 | static void |
290 | ui_memcpy (void *dest, const char *buffer, long len) |
291 | { |
292 | memcpy (dest, buffer, (size_t) len); |
293 | ((char *) dest)[len] = '\0'; |
294 | } |
295 | |
296 | /* Print a floating-point value of type TYPE, pointed to in GDB by |
297 | VALADDR, on STREAM. Use Ada formatting conventions: there must be |
298 | a decimal point, and at least one digit before and after the |
299 | point. We use GNAT format for NaNs and infinities. */ |
300 | static void |
301 | ada_print_floating (char *valaddr, struct type *type, struct ui_file *stream) |
302 | { |
303 | char buffer[64]; |
304 | char *s, *result; |
305 | int len; |
306 | struct ui_file *tmp_stream = mem_fileopen (); |
307 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream); |
308 | |
309 | print_floating (valaddr, type, tmp_stream); |
310 | ui_file_put (tmp_stream, ui_memcpy, buffer); |
311 | do_cleanups (cleanups); |
312 | |
313 | result = buffer; |
314 | len = strlen (result); |
Value stored to 'len' is never read | |
315 | |
316 | /* Modify for Ada rules. */ |
317 | |
318 | s = strstr (result, "inf"); |
319 | if (s == NULL((void*)0)) |
320 | s = strstr (result, "Inf"); |
321 | if (s == NULL((void*)0)) |
322 | s = strstr (result, "INF"); |
323 | if (s != NULL((void*)0)) |
324 | strcpy (s, "Inf"); |
325 | |
326 | if (s == NULL((void*)0)) |
327 | { |
328 | s = strstr (result, "nan"); |
329 | if (s == NULL((void*)0)) |
330 | s = strstr (result, "NaN"); |
331 | if (s == NULL((void*)0)) |
332 | s = strstr (result, "Nan"); |
333 | if (s != NULL((void*)0)) |
334 | { |
335 | s[0] = s[2] = 'N'; |
336 | if (result[0] == '-') |
337 | result += 1; |
338 | } |
339 | } |
340 | |
341 | if (s == NULL((void*)0) && strchr (result, '.') == NULL((void*)0)) |
342 | { |
343 | s = strchr (result, 'e'); |
344 | if (s == NULL((void*)0)) |
345 | fprintf_filtered (stream, "%s.0", result); |
346 | else |
347 | fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s); |
348 | return; |
349 | } |
350 | fprintf_filtered (stream, "%s", result); |
351 | } |
352 | |
353 | void |
354 | ada_printchar (int c, struct ui_file *stream) |
355 | { |
356 | fputs_filtered ("'", stream); |
357 | ada_emit_char (c, stream, '\'', 1); |
358 | fputs_filtered ("'", stream); |
359 | } |
360 | |
361 | /* [From print_type_scalar in typeprint.c]. Print VAL on STREAM in a |
362 | form appropriate for TYPE. */ |
363 | |
364 | void |
365 | ada_print_scalar (struct type *type, LONGESTlong val, struct ui_file *stream) |
366 | { |
367 | unsigned int i; |
368 | unsigned len; |
369 | |
370 | type = ada_check_typedef (type); |
371 | |
372 | switch (TYPE_CODE (type)(type)->main_type->code) |
373 | { |
374 | |
375 | case TYPE_CODE_ENUM: |
376 | len = TYPE_NFIELDS (type)(type)->main_type->nfields; |
377 | for (i = 0; i < len; i++) |
378 | { |
379 | if (TYPE_FIELD_BITPOS (type, i)(((type)->main_type->fields[i]).loc.bitpos) == val) |
380 | { |
381 | break; |
382 | } |
383 | } |
384 | if (i < len) |
385 | { |
386 | fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name)), stream); |
387 | } |
388 | else |
389 | { |
390 | print_longest (stream, 'd', 0, val); |
391 | } |
392 | break; |
393 | |
394 | case TYPE_CODE_INT: |
395 | print_longest (stream, TYPE_UNSIGNED (type)((type)->main_type->flags & (1 << 0)) ? 'u' : 'd', 0, val); |
396 | break; |
397 | |
398 | case TYPE_CODE_CHAR: |
399 | LA_PRINT_CHAR ((unsigned char) val, stream)(current_language->la_printchar((unsigned char) val, stream )); |
400 | break; |
401 | |
402 | case TYPE_CODE_BOOL: |
403 | fprintf_filtered (stream, val ? "true" : "false"); |
404 | break; |
405 | |
406 | case TYPE_CODE_RANGE: |
407 | ada_print_scalar (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, val, stream); |
408 | return; |
409 | |
410 | case TYPE_CODE_UNDEF: |
411 | case TYPE_CODE_PTR: |
412 | case TYPE_CODE_ARRAY: |
413 | case TYPE_CODE_STRUCT: |
414 | case TYPE_CODE_UNION: |
415 | case TYPE_CODE_FUNC: |
416 | case TYPE_CODE_FLT: |
417 | case TYPE_CODE_VOID: |
418 | case TYPE_CODE_SET: |
419 | case TYPE_CODE_STRING: |
420 | case TYPE_CODE_ERROR: |
421 | case TYPE_CODE_MEMBER: |
422 | case TYPE_CODE_METHOD: |
423 | case TYPE_CODE_REF: |
424 | warning ("internal error: unhandled type in ada_print_scalar"); |
425 | break; |
426 | |
427 | default: |
428 | error ("Invalid type code in symbol table."); |
429 | } |
430 | gdb_flush (stream); |
431 | } |
432 | |
433 | /* Print the character string STRING, printing at most LENGTH characters. |
434 | Printing stops early if the number hits print_max; repeat counts |
435 | are printed as appropriate. Print ellipses at the end if we |
436 | had to stop before printing LENGTH characters, or if |
437 | FORCE_ELLIPSES. TYPE_LEN is the length (1 or 2) of the character type. |
438 | */ |
439 | |
440 | static void |
441 | printstr (struct ui_file *stream, char *string, unsigned int length, |
442 | int force_ellipses, int type_len) |
443 | { |
444 | unsigned int i; |
445 | unsigned int things_printed = 0; |
446 | int in_quotes = 0; |
447 | int need_comma = 0; |
448 | |
449 | if (length == 0) |
450 | { |
451 | fputs_filtered ("\"\"", stream); |
452 | return; |
453 | } |
454 | |
455 | for (i = 0; i < length && things_printed < print_max; i += 1) |
456 | { |
457 | /* Position of the character we are examining |
458 | to see whether it is repeated. */ |
459 | unsigned int rep1; |
460 | /* Number of repetitions we have detected so far. */ |
461 | unsigned int reps; |
462 | |
463 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; |
464 | |
465 | if (need_comma) |
466 | { |
467 | fputs_filtered (", ", stream); |
468 | need_comma = 0; |
469 | } |
470 | |
471 | rep1 = i + 1; |
472 | reps = 1; |
473 | while (rep1 < length |
474 | && char_at (string, rep1, type_len) == char_at (string, i, |
475 | type_len)) |
476 | { |
477 | rep1 += 1; |
478 | reps += 1; |
479 | } |
480 | |
481 | if (reps > repeat_count_threshold) |
482 | { |
483 | if (in_quotes) |
484 | { |
485 | if (inspect_it) |
486 | fputs_filtered ("\\\", ", stream); |
487 | else |
488 | fputs_filtered ("\", ", stream); |
489 | in_quotes = 0; |
490 | } |
491 | fputs_filtered ("'", stream); |
492 | ada_emit_char (char_at (string, i, type_len), stream, '\'', |
493 | type_len); |
494 | fputs_filtered ("'", stream); |
495 | fprintf_filtered (stream, " <repeats %u times>", reps); |
496 | i = rep1 - 1; |
497 | things_printed += repeat_count_threshold; |
498 | need_comma = 1; |
499 | } |
500 | else |
501 | { |
502 | if (!in_quotes) |
503 | { |
504 | if (inspect_it) |
505 | fputs_filtered ("\\\"", stream); |
506 | else |
507 | fputs_filtered ("\"", stream); |
508 | in_quotes = 1; |
509 | } |
510 | ada_emit_char (char_at (string, i, type_len), stream, '"', |
511 | type_len); |
512 | things_printed += 1; |
513 | } |
514 | } |
515 | |
516 | /* Terminate the quotes if necessary. */ |
517 | if (in_quotes) |
518 | { |
519 | if (inspect_it) |
520 | fputs_filtered ("\\\"", stream); |
521 | else |
522 | fputs_filtered ("\"", stream); |
523 | } |
524 | |
525 | if (force_ellipses || i < length) |
526 | fputs_filtered ("...", stream); |
527 | } |
528 | |
529 | void |
530 | ada_printstr (struct ui_file *stream, char *string, unsigned int length, |
531 | int width, int force_ellipses) |
532 | { |
533 | printstr (stream, string, length, force_ellipses, width); |
534 | } |
535 | |
536 | |
537 | /* Print data of type TYPE located at VALADDR (within GDB), which came from |
538 | the inferior at address ADDRESS, onto stdio stream STREAM according to |
539 | FORMAT (a letter as for the printf % codes or 0 for natural format). |
540 | The data at VALADDR is in target byte order. |
541 | |
542 | If the data is printed as a string, returns the number of string characters |
543 | printed. |
544 | |
545 | If DEREF_REF is nonzero, then dereference references, otherwise just print |
546 | them like pointers. |
547 | |
548 | RECURSE indicates the amount of indentation to supply before |
549 | continuation lines; this amount is roughly twice the value of RECURSE. |
550 | |
551 | When PRETTY is non-zero, prints record fields on separate lines. |
552 | (For some reason, the current version of gdb instead uses a global |
553 | variable---prettyprint_arrays--- to causes a similar effect on |
554 | arrays.) */ |
555 | |
556 | int |
557 | ada_val_print (struct type *type, char *valaddr0, int embedded_offset, |
558 | CORE_ADDR address, struct ui_file *stream, int format, |
559 | int deref_ref, int recurse, enum val_prettyprint pretty) |
560 | { |
561 | struct ada_val_print_args args; |
562 | args.type = type; |
563 | args.valaddr0 = valaddr0; |
564 | args.embedded_offset = embedded_offset; |
565 | args.address = address; |
566 | args.stream = stream; |
567 | args.format = format; |
568 | args.deref_ref = deref_ref; |
569 | args.recurse = recurse; |
570 | args.pretty = pretty; |
571 | |
572 | return catch_errors (ada_val_print_stub, &args, NULL((void*)0), RETURN_MASK_ALL((1 << (int)(-RETURN_QUIT)) | (1 << (int)(-RETURN_ERROR )))); |
573 | } |
574 | |
575 | /* Helper for ada_val_print; used as argument to catch_errors to |
576 | unmarshal the arguments to ada_val_print_1, which does the work. */ |
577 | static int |
578 | ada_val_print_stub (void *args0) |
579 | { |
580 | struct ada_val_print_args *argsp = (struct ada_val_print_args *) args0; |
581 | return ada_val_print_1 (argsp->type, argsp->valaddr0, |
582 | argsp->embedded_offset, argsp->address, |
583 | argsp->stream, argsp->format, argsp->deref_ref, |
584 | argsp->recurse, argsp->pretty); |
585 | } |
586 | |
587 | /* See the comment on ada_val_print. This function differs in that it |
588 | * does not catch evaluation errors (leaving that to ada_val_print). */ |
589 | |
590 | static int |
591 | ada_val_print_1 (struct type *type, char *valaddr0, int embedded_offset, |
592 | CORE_ADDR address, struct ui_file *stream, int format, |
593 | int deref_ref, int recurse, enum val_prettyprint pretty) |
594 | { |
595 | unsigned int len; |
596 | int i; |
597 | struct type *elttype; |
598 | unsigned int eltlen; |
599 | LONGESTlong val; |
600 | char *valaddr = valaddr0 + embedded_offset; |
601 | |
602 | type = ada_check_typedef (type); |
603 | |
604 | if (ada_is_array_descriptor_type (type) || ada_is_packed_array_type (type)) |
605 | { |
606 | int retn; |
607 | struct value *mark = value_mark (); |
608 | struct value *val; |
609 | val = value_from_contents_and_address (type, valaddr, address); |
610 | val = ada_coerce_to_simple_array_ptr (val); |
611 | if (val == NULL((void*)0)) |
612 | { |
613 | fprintf_filtered (stream, "(null)"); |
614 | retn = 0; |
615 | } |
616 | else |
617 | retn = ada_val_print_1 (VALUE_TYPE (val)(val)->type, VALUE_CONTENTS (val)((void)((val)->lazy && value_fetch_lazy(val)), ((char *) (val)->aligner.contents + (val)->embedded_offset)), 0, |
618 | VALUE_ADDRESS (val)(val)->location.address, stream, format, |
619 | deref_ref, recurse, pretty); |
620 | value_free_to_mark (mark); |
621 | return retn; |
622 | } |
623 | |
624 | valaddr = ada_aligned_value_addr (type, valaddr); |
625 | embedded_offset -= valaddr - valaddr0 - embedded_offset; |
626 | type = printable_val_type (type, valaddr); |
627 | |
628 | switch (TYPE_CODE (type)(type)->main_type->code) |
629 | { |
630 | default: |
631 | return c_val_print (type, valaddr0, embedded_offset, address, stream, |
632 | format, deref_ref, recurse, pretty); |
633 | |
634 | case TYPE_CODE_PTR: |
635 | { |
636 | int ret = c_val_print (type, valaddr0, embedded_offset, address, |
637 | stream, format, deref_ref, recurse, pretty); |
638 | if (ada_is_tag_type (type)) |
639 | { |
640 | struct value *val = |
641 | value_from_contents_and_address (type, valaddr, address); |
642 | const char *name = ada_tag_name (val); |
643 | if (name != NULL((void*)0)) |
644 | fprintf_filtered (stream, " (%s)", name); |
645 | return 0; |
646 | } |
647 | return ret; |
648 | } |
649 | |
650 | case TYPE_CODE_INT: |
651 | case TYPE_CODE_RANGE: |
652 | if (ada_is_fixed_point_type (type)) |
653 | { |
654 | LONGESTlong v = unpack_long (type, valaddr); |
655 | int len = TYPE_LENGTH (type)(type)->length; |
656 | |
657 | fprintf_filtered (stream, len < 4 ? "%.11g" : "%.17g", |
658 | (double) ada_fixed_to_float (type, v)); |
659 | return 0; |
660 | } |
661 | else if (ada_is_vax_floating_type (type)) |
662 | { |
663 | struct value *val = |
664 | value_from_contents_and_address (type, valaddr, address); |
665 | struct value *func = ada_vax_float_print_function (type); |
666 | if (func != 0) |
667 | { |
668 | static struct type *parray_of_char = NULL((void*)0); |
669 | struct value *printable_val; |
670 | |
671 | if (parray_of_char == NULL((void*)0)) |
672 | parray_of_char = |
673 | make_pointer_type |
674 | (create_array_type |
675 | (NULL((void*)0), builtin_type_char, |
676 | create_range_type (NULL((void*)0), builtin_type_int, 0, 32)), NULL((void*)0)); |
677 | |
678 | printable_val = |
679 | value_ind (value_cast (parray_of_char, |
680 | call_function_by_hand (func, 1, |
681 | &val))); |
682 | |
683 | fprintf_filtered (stream, "%s", VALUE_CONTENTS (printable_val)((void)((printable_val)->lazy && value_fetch_lazy( printable_val)), ((char *) (printable_val)->aligner.contents + (printable_val)->embedded_offset))); |
684 | return 0; |
685 | } |
686 | /* No special printing function. Do as best we can. */ |
687 | } |
688 | else if (TYPE_CODE (type)(type)->main_type->code == TYPE_CODE_RANGE) |
689 | { |
690 | struct type *target_type = TYPE_TARGET_TYPE (type)(type)->main_type->target_type; |
691 | if (TYPE_LENGTH (type)(type)->length != TYPE_LENGTH (target_type)(target_type)->length) |
692 | { |
693 | /* Obscure case of range type that has different length from |
694 | its base type. Perform a conversion, or we will get a |
695 | nonsense value. Actually, we could use the same |
696 | code regardless of lengths; I'm just avoiding a cast. */ |
697 | struct value *v = value_cast (target_type, |
698 | value_from_contents_and_address |
699 | (type, valaddr, 0)); |
700 | return ada_val_print_1 (target_type, VALUE_CONTENTS (v)((void)((v)->lazy && value_fetch_lazy(v)), ((char * ) (v)->aligner.contents + (v)->embedded_offset)), 0, 0, |
701 | stream, format, 0, recurse + 1, pretty); |
702 | } |
703 | else |
704 | return ada_val_print_1 (TYPE_TARGET_TYPE (type)(type)->main_type->target_type, |
705 | valaddr0, embedded_offset, |
706 | address, stream, format, deref_ref, |
707 | recurse, pretty); |
708 | } |
709 | else |
710 | { |
711 | format = format ? format : output_format; |
712 | if (format) |
713 | { |
714 | print_scalar_formatted (valaddr, type, format, 0, stream); |
715 | } |
716 | else if (ada_is_system_address_type (type)) |
717 | { |
718 | /* FIXME: We want to print System.Address variables using |
719 | the same format as for any access type. But for some |
720 | reason GNAT encodes the System.Address type as an int, |
721 | so we have to work-around this deficiency by handling |
722 | System.Address values as a special case. */ |
723 | fprintf_filtered (stream, "("); |
724 | type_print (type, "", stream, -1); |
725 | fprintf_filtered (stream, ") "); |
726 | print_address_numeric |
727 | (extract_typed_address (valaddr, builtin_type_void_data_ptr), |
728 | 1, stream); |
729 | } |
730 | else |
731 | { |
732 | val_print_type_code_int (type, valaddr, stream); |
733 | if (ada_is_character_type (type)) |
734 | { |
735 | fputs_filtered (" ", stream); |
736 | ada_printchar ((unsigned char) unpack_long (type, valaddr), |
737 | stream); |
738 | } |
739 | } |
740 | return 0; |
741 | } |
742 | |
743 | case TYPE_CODE_ENUM: |
744 | if (format) |
745 | { |
746 | print_scalar_formatted (valaddr, type, format, 0, stream); |
747 | break; |
748 | } |
749 | len = TYPE_NFIELDS (type)(type)->main_type->nfields; |
750 | val = unpack_long (type, valaddr); |
751 | for (i = 0; i < len; i++) |
752 | { |
753 | QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook (); }; |
754 | if (val == TYPE_FIELD_BITPOS (type, i)(((type)->main_type->fields[i]).loc.bitpos)) |
755 | { |
756 | break; |
757 | } |
758 | } |
759 | if (i < len) |
760 | { |
761 | const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name)); |
762 | if (name[0] == '\'') |
763 | fprintf_filtered (stream, "%ld %s", (long) val, name); |
764 | else |
765 | fputs_filtered (name, stream); |
766 | } |
767 | else |
768 | { |
769 | print_longest (stream, 'd', 0, val); |
770 | } |
771 | break; |
772 | |
773 | case TYPE_CODE_FLT: |
774 | if (format) |
775 | return c_val_print (type, valaddr0, embedded_offset, address, stream, |
776 | format, deref_ref, recurse, pretty); |
777 | else |
778 | ada_print_floating (valaddr0 + embedded_offset, type, stream); |
779 | break; |
780 | |
781 | case TYPE_CODE_UNION: |
782 | case TYPE_CODE_STRUCT: |
783 | if (ada_is_bogus_array_descriptor (type)) |
784 | { |
785 | fprintf_filtered (stream, "(...?)"); |
786 | return 0; |
787 | } |
788 | else |
789 | { |
790 | print_record (type, valaddr, stream, format, recurse, pretty); |
791 | return 0; |
792 | } |
793 | |
794 | case TYPE_CODE_ARRAY: |
795 | elttype = TYPE_TARGET_TYPE (type)(type)->main_type->target_type; |
796 | if (elttype == NULL((void*)0)) |
797 | eltlen = 0; |
798 | else |
799 | eltlen = TYPE_LENGTH (elttype)(elttype)->length; |
800 | /* FIXME: This doesn't deal with non-empty arrays of |
801 | 0-length items (not a typical case!) */ |
802 | if (eltlen == 0) |
803 | len = 0; |
804 | else |
805 | len = TYPE_LENGTH (type)(type)->length / eltlen; |
806 | |
807 | /* For an array of chars, print with string syntax. */ |
808 | if (ada_is_string_type (type) && (format == 0 || format == 's')) |
809 | { |
810 | if (prettyprint_arrays) |
811 | { |
812 | print_spaces_filtered (2 + 2 * recurse, stream); |
813 | } |
814 | /* If requested, look for the first null char and only print |
815 | elements up to it. */ |
816 | if (stop_print_at_null) |
817 | { |
818 | int temp_len; |
819 | |
820 | /* Look for a NULL char. */ |
821 | for (temp_len = 0; |
822 | temp_len < len && temp_len < print_max |
823 | && char_at (valaddr, temp_len, eltlen) != 0; |
824 | temp_len += 1); |
825 | len = temp_len; |
826 | } |
827 | |
828 | printstr (stream, valaddr, len, 0, eltlen); |
829 | } |
830 | else |
831 | { |
832 | len = 0; |
833 | fprintf_filtered (stream, "("); |
834 | print_optional_low_bound (stream, type); |
835 | if (TYPE_FIELD_BITSIZE (type, 0)(((type)->main_type->fields[0]).bitsize) > 0) |
836 | val_print_packed_array_elements (type, valaddr, 0, stream, |
837 | format, recurse, pretty); |
838 | else |
839 | val_print_array_elements (type, valaddr, address, stream, |
840 | format, deref_ref, recurse, |
841 | pretty, 0); |
842 | fprintf_filtered (stream, ")"); |
843 | } |
844 | gdb_flush (stream); |
845 | return len; |
846 | |
847 | case TYPE_CODE_REF: |
848 | elttype = check_typedef (TYPE_TARGET_TYPE (type)(type)->main_type->target_type); |
849 | /* De-reference the reference */ |
850 | if (deref_ref) |
851 | { |
852 | if (TYPE_CODE (elttype)(elttype)->main_type->code != TYPE_CODE_UNDEF) |
853 | { |
854 | LONGESTlong deref_val_int = (LONGESTlong) |
855 | unpack_pointer (lookup_pointer_type (builtin_type_void), |
856 | valaddr); |
857 | if (deref_val_int != 0) |
858 | { |
859 | struct value *deref_val = |
860 | ada_value_ind (value_from_longest |
861 | (lookup_pointer_type (elttype), |
862 | deref_val_int)); |
863 | val_print (VALUE_TYPE (deref_val)(deref_val)->type, |
864 | VALUE_CONTENTS (deref_val)((void)((deref_val)->lazy && value_fetch_lazy(deref_val )), ((char *) (deref_val)->aligner.contents + (deref_val)-> embedded_offset)), 0, |
865 | VALUE_ADDRESS (deref_val)(deref_val)->location.address, stream, format, |
866 | deref_ref, recurse + 1, pretty); |
867 | } |
868 | else |
869 | fputs_filtered ("(null)", stream); |
870 | } |
871 | else |
872 | fputs_filtered ("???", stream); |
873 | } |
874 | break; |
875 | } |
876 | gdb_flush (stream); |
877 | return 0; |
878 | } |
879 | |
880 | static int |
881 | print_variant_part (struct type *type, int field_num, char *valaddr, |
882 | struct ui_file *stream, int format, int recurse, |
883 | enum val_prettyprint pretty, int comma_needed, |
884 | struct type *outer_type, char *outer_valaddr) |
885 | { |
886 | struct type *var_type = TYPE_FIELD_TYPE (type, field_num)(((type)->main_type->fields[field_num]).type); |
887 | int which = ada_which_variant_applies (var_type, outer_type, outer_valaddr); |
888 | |
889 | if (which < 0) |
890 | return 0; |
891 | else |
892 | return print_field_values |
893 | (TYPE_FIELD_TYPE (var_type, which)(((var_type)->main_type->fields[which]).type), |
894 | valaddr + TYPE_FIELD_BITPOS (type, field_num)(((type)->main_type->fields[field_num]).loc.bitpos) / HOST_CHAR_BIT8 |
895 | + TYPE_FIELD_BITPOS (var_type, which)(((var_type)->main_type->fields[which]).loc.bitpos) / HOST_CHAR_BIT8, |
896 | stream, format, recurse, pretty, |
897 | comma_needed, outer_type, outer_valaddr); |
898 | } |
899 | |
900 | int |
901 | ada_value_print (struct value *val0, struct ui_file *stream, int format, |
902 | enum val_prettyprint pretty) |
903 | { |
904 | char *valaddr = VALUE_CONTENTS (val0)((void)((val0)->lazy && value_fetch_lazy(val0)), ( (char *) (val0)->aligner.contents + (val0)->embedded_offset )); |
905 | CORE_ADDR address = VALUE_ADDRESS (val0)(val0)->location.address + VALUE_OFFSET (val0)(val0)->offset; |
906 | struct type *type = |
907 | ada_to_fixed_type (VALUE_TYPE (val0)(val0)->type, valaddr, address, NULL((void*)0)); |
908 | struct value *val = |
909 | value_from_contents_and_address (type, valaddr, address); |
910 | |
911 | /* If it is a pointer, indicate what it points to. */ |
912 | if (TYPE_CODE (type)(type)->main_type->code == TYPE_CODE_PTR) |
913 | { |
914 | /* Hack: don't print (char *) for char strings. Their |
915 | type is indicated by the quoted string anyway. */ |
916 | if (TYPE_LENGTH (TYPE_TARGET_TYPE (type))((type)->main_type->target_type)->length != sizeof (char) |
917 | || TYPE_CODE (TYPE_TARGET_TYPE (type))((type)->main_type->target_type)->main_type->code != TYPE_CODE_INT |
918 | || TYPE_UNSIGNED (TYPE_TARGET_TYPE (type))(((type)->main_type->target_type)->main_type->flags & (1 << 0))) |
919 | { |
920 | fprintf_filtered (stream, "("); |
921 | type_print (type, "", stream, -1); |
922 | fprintf_filtered (stream, ") "); |
923 | } |
924 | } |
925 | else if (ada_is_array_descriptor_type (type)) |
926 | { |
927 | fprintf_filtered (stream, "("); |
928 | type_print (type, "", stream, -1); |
929 | fprintf_filtered (stream, ") "); |
930 | } |
931 | else if (ada_is_bogus_array_descriptor (type)) |
932 | { |
933 | fprintf_filtered (stream, "("); |
934 | type_print (type, "", stream, -1); |
935 | fprintf_filtered (stream, ") (...?)"); |
936 | return 0; |
937 | } |
938 | |
939 | if (TYPE_CODE (type)(type)->main_type->code == TYPE_CODE_ARRAY |
940 | && TYPE_LENGTH (TYPE_TARGET_TYPE (type))((type)->main_type->target_type)->length == 0 |
941 | && TYPE_CODE (TYPE_INDEX_TYPE (type))((((type)->main_type->fields[0]).type))->main_type-> code == TYPE_CODE_RANGE) |
942 | { |
943 | /* This is an array of zero-length elements, that is an array |
944 | of null records. This array needs to be printed by hand, |
945 | as the standard routine to print arrays relies on the size of |
946 | the array elements to be nonzero. This is because it computes |
947 | the number of elements in the array by dividing the array size |
948 | by the array element size. */ |
949 | fprintf_filtered (stream, "(%d .. %d => ())", |
950 | TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type))((((((type)->main_type->fields[0]).type))->main_type ->fields[0]).loc.bitpos), |
951 | TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (type))((((((type)->main_type->fields[0]).type))->main_type ->fields[1]).loc.bitpos)); |
952 | return 0; |
953 | } |
954 | |
955 | return (val_print (type, VALUE_CONTENTS (val)((void)((val)->lazy && value_fetch_lazy(val)), ((char *) (val)->aligner.contents + (val)->embedded_offset)), 0, address, |
956 | stream, format, 1, 0, pretty)); |
957 | } |
958 | |
959 | static void |
960 | print_record (struct type *type, char *valaddr, struct ui_file *stream, |
961 | int format, int recurse, enum val_prettyprint pretty) |
962 | { |
963 | type = ada_check_typedef (type); |
964 | |
965 | fprintf_filtered (stream, "("); |
966 | |
967 | if (print_field_values (type, valaddr, stream, format, recurse, pretty, |
968 | 0, type, valaddr) != 0 && pretty) |
969 | { |
970 | fprintf_filtered (stream, "\n"); |
971 | print_spaces_filtered (2 * recurse, stream); |
972 | } |
973 | |
974 | fprintf_filtered (stream, ")"); |
975 | } |
976 | |
977 | /* Print out fields of value at VALADDR having structure type TYPE. |
978 | |
979 | TYPE, VALADDR, STREAM, FORMAT, RECURSE, and PRETTY have the |
980 | same meanings as in ada_print_value and ada_val_print. |
981 | |
982 | OUTER_TYPE and OUTER_VALADDR give type and address of enclosing record |
983 | (used to get discriminant values when printing variant parts). |
984 | |
985 | COMMA_NEEDED is 1 if fields have been printed at the current recursion |
986 | level, so that a comma is needed before any field printed by this |
987 | call. |
988 | |
989 | Returns 1 if COMMA_NEEDED or any fields were printed. */ |
990 | |
991 | static int |
992 | print_field_values (struct type *type, char *valaddr, struct ui_file *stream, |
993 | int format, int recurse, enum val_prettyprint pretty, |
994 | int comma_needed, struct type *outer_type, |
995 | char *outer_valaddr) |
996 | { |
997 | int i, len; |
998 | |
999 | len = TYPE_NFIELDS (type)(type)->main_type->nfields; |
1000 | |
1001 | for (i = 0; i < len; i += 1) |
1002 | { |
1003 | if (ada_is_ignored_field (type, i)) |
1004 | continue; |
1005 | |
1006 | if (ada_is_wrapper_field (type, i)) |
1007 | { |
1008 | comma_needed = |
1009 | print_field_values (TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type), |
1010 | valaddr |
1011 | + TYPE_FIELD_BITPOS (type, i)(((type)->main_type->fields[i]).loc.bitpos) / HOST_CHAR_BIT8, |
1012 | stream, format, recurse, pretty, |
1013 | comma_needed, type, valaddr); |
1014 | continue; |
1015 | } |
1016 | else if (ada_is_variant_part (type, i)) |
1017 | { |
1018 | comma_needed = |
1019 | print_variant_part (type, i, valaddr, |
1020 | stream, format, recurse, pretty, comma_needed, |
1021 | outer_type, outer_valaddr); |
1022 | continue; |
1023 | } |
1024 | |
1025 | if (comma_needed) |
1026 | fprintf_filtered (stream, ", "); |
1027 | comma_needed = 1; |
1028 | |
1029 | if (pretty) |
1030 | { |
1031 | fprintf_filtered (stream, "\n"); |
1032 | print_spaces_filtered (2 + 2 * recurse, stream); |
1033 | } |
1034 | else |
1035 | { |
1036 | wrap_here (n_spaces (2 + 2 * recurse)); |
1037 | } |
1038 | if (inspect_it) |
1039 | { |
1040 | if (TYPE_CODE (TYPE_FIELD_TYPE (type, i))((((type)->main_type->fields[i]).type))->main_type-> code == TYPE_CODE_PTR) |
1041 | fputs_filtered ("\"( ptr \"", stream); |
1042 | else |
1043 | fputs_filtered ("\"( nodef \"", stream); |
1044 | fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name), |
1045 | language_cplus, DMGL_NO_OPTS0); |
1046 | fputs_filtered ("\" \"", stream); |
1047 | fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name), |
1048 | language_cplus, DMGL_NO_OPTS0); |
1049 | fputs_filtered ("\") \"", stream); |
1050 | } |
1051 | else |
1052 | { |
1053 | annotate_field_begin (TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type)); |
1054 | fprintf_filtered (stream, "%.*s", |
1055 | ada_name_prefix_len (TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name)), |
1056 | TYPE_FIELD_NAME (type, i)(((type)->main_type->fields[i]).name)); |
1057 | annotate_field_name_end (); |
1058 | fputs_filtered (" => ", stream); |
1059 | annotate_field_value (); |
1060 | } |
1061 | |
1062 | if (TYPE_FIELD_PACKED (type, i)((((type)->main_type->fields[i]).bitsize)!=0)) |
1063 | { |
1064 | struct value *v; |
1065 | |
1066 | /* Bitfields require special handling, especially due to byte |
1067 | order problems. */ |
1068 | if (TYPE_CPLUS_SPECIFIC (type)(type)->main_type->type_specific.cplus_stuff != NULL((void*)0) |
1069 | && TYPE_FIELD_IGNORE (type, i)((type)->main_type->type_specific.cplus_stuff->ignore_field_bits == ((void*)0) ? 0 : (((type)->main_type->type_specific .cplus_stuff->ignore_field_bits)[((i))>>3] & (1 << (((i))&7))))) |
1070 | { |
1071 | fputs_filtered ("<optimized out or zero length>", stream); |
1072 | } |
1073 | else |
1074 | { |
1075 | int bit_pos = TYPE_FIELD_BITPOS (type, i)(((type)->main_type->fields[i]).loc.bitpos); |
1076 | int bit_size = TYPE_FIELD_BITSIZE (type, i)(((type)->main_type->fields[i]).bitsize); |
1077 | |
1078 | adjust_type_signedness (TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type)); |
1079 | v = ada_value_primitive_packed_val (NULL((void*)0), valaddr, |
1080 | bit_pos / HOST_CHAR_BIT8, |
1081 | bit_pos % HOST_CHAR_BIT8, |
1082 | bit_size, |
1083 | TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type)); |
1084 | val_print (TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type), VALUE_CONTENTS (v)((void)((v)->lazy && value_fetch_lazy(v)), ((char * ) (v)->aligner.contents + (v)->embedded_offset)), 0, 0, |
1085 | stream, format, 0, recurse + 1, pretty); |
1086 | } |
1087 | } |
1088 | else |
1089 | ada_val_print (TYPE_FIELD_TYPE (type, i)(((type)->main_type->fields[i]).type), |
1090 | valaddr + TYPE_FIELD_BITPOS (type, i)(((type)->main_type->fields[i]).loc.bitpos) / HOST_CHAR_BIT8, |
1091 | 0, 0, stream, format, 0, recurse + 1, pretty); |
1092 | annotate_field_end (); |
1093 | } |
1094 | |
1095 | return comma_needed; |
1096 | } |