Commit | Line | Data |
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c906108c | 1 | /* Print values for GDB, the GNU debugger. |
5c1c87f0 | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
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 |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
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. | |
c906108c | 16 | |
c5aa993b | 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/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
c906108c SS |
21 | #include "symtab.h" |
22 | #include "gdbtypes.h" | |
23 | #include "value.h" | |
24 | #include "gdbcore.h" | |
25 | #include "gdbcmd.h" | |
26 | #include "target.h" | |
c906108c | 27 | #include "language.h" |
c906108c SS |
28 | #include "annotate.h" |
29 | #include "valprint.h" | |
39424bef | 30 | #include "floatformat.h" |
d16aafd8 | 31 | #include "doublest.h" |
7678ef8f | 32 | #include "dfp.h" |
6dddc817 | 33 | #include "extension.h" |
0c3acc09 | 34 | #include "ada-lang.h" |
3b2b8fea TT |
35 | #include "gdb_obstack.h" |
36 | #include "charset.h" | |
37 | #include <ctype.h> | |
c906108c | 38 | |
0d63ecda KS |
39 | /* Maximum number of wchars returned from wchar_iterate. */ |
40 | #define MAX_WCHARS 4 | |
41 | ||
42 | /* A convenience macro to compute the size of a wchar_t buffer containing X | |
43 | characters. */ | |
44 | #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t)) | |
45 | ||
46 | /* Character buffer size saved while iterating over wchars. */ | |
47 | #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS) | |
48 | ||
49 | /* A structure to encapsulate state information from iterated | |
50 | character conversions. */ | |
51 | struct converted_character | |
52 | { | |
53 | /* The number of characters converted. */ | |
54 | int num_chars; | |
55 | ||
56 | /* The result of the conversion. See charset.h for more. */ | |
57 | enum wchar_iterate_result result; | |
58 | ||
59 | /* The (saved) converted character(s). */ | |
60 | gdb_wchar_t chars[WCHAR_BUFLEN_MAX]; | |
61 | ||
62 | /* The first converted target byte. */ | |
63 | const gdb_byte *buf; | |
64 | ||
65 | /* The number of bytes converted. */ | |
66 | size_t buflen; | |
67 | ||
68 | /* How many times this character(s) is repeated. */ | |
69 | int repeat_count; | |
70 | }; | |
71 | ||
72 | typedef struct converted_character converted_character_d; | |
73 | DEF_VEC_O (converted_character_d); | |
74 | ||
e7045703 DE |
75 | /* Command lists for set/show print raw. */ |
76 | struct cmd_list_element *setprintrawlist; | |
77 | struct cmd_list_element *showprintrawlist; | |
0d63ecda | 78 | |
c906108c SS |
79 | /* Prototypes for local functions */ |
80 | ||
777ea8f1 | 81 | static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 82 | int len, int *errptr); |
917317f4 | 83 | |
a14ed312 | 84 | static void show_print (char *, int); |
c906108c | 85 | |
a14ed312 | 86 | static void set_print (char *, int); |
c906108c | 87 | |
a14ed312 | 88 | static void set_radix (char *, int); |
c906108c | 89 | |
a14ed312 | 90 | static void show_radix (char *, int); |
c906108c | 91 | |
a14ed312 | 92 | static void set_input_radix (char *, int, struct cmd_list_element *); |
c906108c | 93 | |
a14ed312 | 94 | static void set_input_radix_1 (int, unsigned); |
c906108c | 95 | |
a14ed312 | 96 | static void set_output_radix (char *, int, struct cmd_list_element *); |
c906108c | 97 | |
a14ed312 | 98 | static void set_output_radix_1 (int, unsigned); |
c906108c | 99 | |
a14ed312 | 100 | void _initialize_valprint (void); |
c906108c | 101 | |
581e13c1 | 102 | #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ |
79a45b7d TT |
103 | |
104 | struct value_print_options user_print_options = | |
105 | { | |
2a998fc0 DE |
106 | Val_prettyformat_default, /* prettyformat */ |
107 | 0, /* prettyformat_arrays */ | |
108 | 0, /* prettyformat_structs */ | |
79a45b7d TT |
109 | 0, /* vtblprint */ |
110 | 1, /* unionprint */ | |
111 | 1, /* addressprint */ | |
112 | 0, /* objectprint */ | |
113 | PRINT_MAX_DEFAULT, /* print_max */ | |
114 | 10, /* repeat_count_threshold */ | |
115 | 0, /* output_format */ | |
116 | 0, /* format */ | |
117 | 0, /* stop_print_at_null */ | |
79a45b7d TT |
118 | 0, /* print_array_indexes */ |
119 | 0, /* deref_ref */ | |
120 | 1, /* static_field_print */ | |
a6bac58e TT |
121 | 1, /* pascal_static_field_print */ |
122 | 0, /* raw */ | |
9cb709b6 TT |
123 | 0, /* summary */ |
124 | 1 /* symbol_print */ | |
79a45b7d TT |
125 | }; |
126 | ||
127 | /* Initialize *OPTS to be a copy of the user print options. */ | |
128 | void | |
129 | get_user_print_options (struct value_print_options *opts) | |
130 | { | |
131 | *opts = user_print_options; | |
132 | } | |
133 | ||
134 | /* Initialize *OPTS to be a copy of the user print options, but with | |
2a998fc0 | 135 | pretty-formatting disabled. */ |
79a45b7d | 136 | void |
2a998fc0 | 137 | get_no_prettyformat_print_options (struct value_print_options *opts) |
79a45b7d TT |
138 | { |
139 | *opts = user_print_options; | |
2a998fc0 | 140 | opts->prettyformat = Val_no_prettyformat; |
79a45b7d TT |
141 | } |
142 | ||
143 | /* Initialize *OPTS to be a copy of the user print options, but using | |
144 | FORMAT as the formatting option. */ | |
145 | void | |
146 | get_formatted_print_options (struct value_print_options *opts, | |
147 | char format) | |
148 | { | |
149 | *opts = user_print_options; | |
150 | opts->format = format; | |
151 | } | |
152 | ||
920d2a44 AC |
153 | static void |
154 | show_print_max (struct ui_file *file, int from_tty, | |
155 | struct cmd_list_element *c, const char *value) | |
156 | { | |
3e43a32a MS |
157 | fprintf_filtered (file, |
158 | _("Limit on string chars or array " | |
159 | "elements to print is %s.\n"), | |
920d2a44 AC |
160 | value); |
161 | } | |
162 | ||
c906108c SS |
163 | |
164 | /* Default input and output radixes, and output format letter. */ | |
165 | ||
166 | unsigned input_radix = 10; | |
920d2a44 AC |
167 | static void |
168 | show_input_radix (struct ui_file *file, int from_tty, | |
169 | struct cmd_list_element *c, const char *value) | |
170 | { | |
3e43a32a MS |
171 | fprintf_filtered (file, |
172 | _("Default input radix for entering numbers is %s.\n"), | |
920d2a44 AC |
173 | value); |
174 | } | |
175 | ||
c906108c | 176 | unsigned output_radix = 10; |
920d2a44 AC |
177 | static void |
178 | show_output_radix (struct ui_file *file, int from_tty, | |
179 | struct cmd_list_element *c, const char *value) | |
180 | { | |
3e43a32a MS |
181 | fprintf_filtered (file, |
182 | _("Default output radix for printing of values is %s.\n"), | |
920d2a44 AC |
183 | value); |
184 | } | |
c906108c | 185 | |
e79af960 JB |
186 | /* By default we print arrays without printing the index of each element in |
187 | the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */ | |
188 | ||
e79af960 JB |
189 | static void |
190 | show_print_array_indexes (struct ui_file *file, int from_tty, | |
191 | struct cmd_list_element *c, const char *value) | |
192 | { | |
193 | fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value); | |
194 | } | |
195 | ||
c906108c SS |
196 | /* Print repeat counts if there are more than this many repetitions of an |
197 | element in an array. Referenced by the low level language dependent | |
581e13c1 | 198 | print routines. */ |
c906108c | 199 | |
920d2a44 AC |
200 | static void |
201 | show_repeat_count_threshold (struct ui_file *file, int from_tty, | |
202 | struct cmd_list_element *c, const char *value) | |
203 | { | |
204 | fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"), | |
205 | value); | |
206 | } | |
c906108c | 207 | |
581e13c1 | 208 | /* If nonzero, stops printing of char arrays at first null. */ |
c906108c | 209 | |
920d2a44 AC |
210 | static void |
211 | show_stop_print_at_null (struct ui_file *file, int from_tty, | |
212 | struct cmd_list_element *c, const char *value) | |
213 | { | |
3e43a32a MS |
214 | fprintf_filtered (file, |
215 | _("Printing of char arrays to stop " | |
216 | "at first null char is %s.\n"), | |
920d2a44 AC |
217 | value); |
218 | } | |
c906108c | 219 | |
581e13c1 | 220 | /* Controls pretty printing of structures. */ |
c906108c | 221 | |
920d2a44 | 222 | static void |
2a998fc0 | 223 | show_prettyformat_structs (struct ui_file *file, int from_tty, |
920d2a44 AC |
224 | struct cmd_list_element *c, const char *value) |
225 | { | |
2a998fc0 | 226 | fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value); |
920d2a44 | 227 | } |
c906108c SS |
228 | |
229 | /* Controls pretty printing of arrays. */ | |
230 | ||
920d2a44 | 231 | static void |
2a998fc0 | 232 | show_prettyformat_arrays (struct ui_file *file, int from_tty, |
920d2a44 AC |
233 | struct cmd_list_element *c, const char *value) |
234 | { | |
2a998fc0 | 235 | fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value); |
920d2a44 | 236 | } |
c906108c SS |
237 | |
238 | /* If nonzero, causes unions inside structures or other unions to be | |
581e13c1 | 239 | printed. */ |
c906108c | 240 | |
920d2a44 AC |
241 | static void |
242 | show_unionprint (struct ui_file *file, int from_tty, | |
243 | struct cmd_list_element *c, const char *value) | |
244 | { | |
3e43a32a MS |
245 | fprintf_filtered (file, |
246 | _("Printing of unions interior to structures is %s.\n"), | |
920d2a44 AC |
247 | value); |
248 | } | |
c906108c | 249 | |
581e13c1 | 250 | /* If nonzero, causes machine addresses to be printed in certain contexts. */ |
c906108c | 251 | |
920d2a44 AC |
252 | static void |
253 | show_addressprint (struct ui_file *file, int from_tty, | |
254 | struct cmd_list_element *c, const char *value) | |
255 | { | |
256 | fprintf_filtered (file, _("Printing of addresses is %s.\n"), value); | |
257 | } | |
9cb709b6 TT |
258 | |
259 | static void | |
260 | show_symbol_print (struct ui_file *file, int from_tty, | |
261 | struct cmd_list_element *c, const char *value) | |
262 | { | |
263 | fprintf_filtered (file, | |
264 | _("Printing of symbols when printing pointers is %s.\n"), | |
265 | value); | |
266 | } | |
267 | ||
c906108c | 268 | \f |
c5aa993b | 269 | |
a6bac58e TT |
270 | /* A helper function for val_print. When printing in "summary" mode, |
271 | we want to print scalar arguments, but not aggregate arguments. | |
272 | This function distinguishes between the two. */ | |
273 | ||
6211c335 YQ |
274 | int |
275 | val_print_scalar_type_p (struct type *type) | |
a6bac58e | 276 | { |
f168693b | 277 | type = check_typedef (type); |
a6bac58e TT |
278 | while (TYPE_CODE (type) == TYPE_CODE_REF) |
279 | { | |
280 | type = TYPE_TARGET_TYPE (type); | |
f168693b | 281 | type = check_typedef (type); |
a6bac58e TT |
282 | } |
283 | switch (TYPE_CODE (type)) | |
284 | { | |
285 | case TYPE_CODE_ARRAY: | |
286 | case TYPE_CODE_STRUCT: | |
287 | case TYPE_CODE_UNION: | |
288 | case TYPE_CODE_SET: | |
289 | case TYPE_CODE_STRING: | |
a6bac58e TT |
290 | return 0; |
291 | default: | |
292 | return 1; | |
293 | } | |
294 | } | |
295 | ||
a72c8f6a | 296 | /* See its definition in value.h. */ |
0e03807e | 297 | |
a72c8f6a | 298 | int |
0e03807e TT |
299 | valprint_check_validity (struct ui_file *stream, |
300 | struct type *type, | |
4e07d55f | 301 | int embedded_offset, |
0e03807e TT |
302 | const struct value *val) |
303 | { | |
f168693b | 304 | type = check_typedef (type); |
0e03807e TT |
305 | |
306 | if (TYPE_CODE (type) != TYPE_CODE_UNION | |
307 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
308 | && TYPE_CODE (type) != TYPE_CODE_ARRAY) | |
309 | { | |
9a0dc9e3 PA |
310 | if (value_bits_any_optimized_out (val, |
311 | TARGET_CHAR_BIT * embedded_offset, | |
312 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
0e03807e | 313 | { |
901461f8 | 314 | val_print_optimized_out (val, stream); |
0e03807e TT |
315 | return 0; |
316 | } | |
8cf6f0b1 | 317 | |
4e07d55f | 318 | if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset, |
8cf6f0b1 TT |
319 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) |
320 | { | |
321 | fputs_filtered (_("<synthetic pointer>"), stream); | |
322 | return 0; | |
323 | } | |
4e07d55f PA |
324 | |
325 | if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) | |
326 | { | |
327 | val_print_unavailable (stream); | |
328 | return 0; | |
329 | } | |
0e03807e TT |
330 | } |
331 | ||
332 | return 1; | |
333 | } | |
334 | ||
585fdaa1 | 335 | void |
901461f8 | 336 | val_print_optimized_out (const struct value *val, struct ui_file *stream) |
585fdaa1 | 337 | { |
901461f8 | 338 | if (val != NULL && value_lval_const (val) == lval_register) |
782d47df | 339 | val_print_not_saved (stream); |
901461f8 PA |
340 | else |
341 | fprintf_filtered (stream, _("<optimized out>")); | |
585fdaa1 PA |
342 | } |
343 | ||
782d47df PA |
344 | void |
345 | val_print_not_saved (struct ui_file *stream) | |
346 | { | |
347 | fprintf_filtered (stream, _("<not saved>")); | |
348 | } | |
349 | ||
4e07d55f PA |
350 | void |
351 | val_print_unavailable (struct ui_file *stream) | |
352 | { | |
353 | fprintf_filtered (stream, _("<unavailable>")); | |
354 | } | |
355 | ||
8af8e3bc PA |
356 | void |
357 | val_print_invalid_address (struct ui_file *stream) | |
358 | { | |
359 | fprintf_filtered (stream, _("<invalid address>")); | |
360 | } | |
361 | ||
9f436164 SM |
362 | /* Print a pointer based on the type of its target. |
363 | ||
364 | Arguments to this functions are roughly the same as those in | |
365 | generic_val_print. A difference is that ADDRESS is the address to print, | |
366 | with embedded_offset already added. ELTTYPE represents | |
367 | the pointed type after check_typedef. */ | |
368 | ||
369 | static void | |
370 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
371 | CORE_ADDR address, struct ui_file *stream, | |
372 | const struct value_print_options *options) | |
373 | { | |
374 | struct gdbarch *gdbarch = get_type_arch (type); | |
375 | ||
376 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
377 | { | |
378 | /* Try to print what function it points to. */ | |
379 | print_function_pointer_address (options, gdbarch, address, stream); | |
380 | return; | |
381 | } | |
382 | ||
383 | if (options->symbol_print) | |
384 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
385 | else if (options->addressprint) | |
386 | fputs_filtered (paddress (gdbarch, address), stream); | |
387 | } | |
388 | ||
557dbe8a SM |
389 | /* generic_val_print helper for TYPE_CODE_ARRAY. */ |
390 | ||
391 | static void | |
392 | generic_val_print_array (struct type *type, const gdb_byte *valaddr, | |
393 | int embedded_offset, CORE_ADDR address, | |
394 | struct ui_file *stream, int recurse, | |
395 | const struct value *original_value, | |
396 | const struct value_print_options *options) | |
397 | { | |
398 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
399 | struct type *elttype = check_typedef (unresolved_elttype); | |
400 | ||
401 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
402 | { | |
403 | LONGEST low_bound, high_bound; | |
404 | ||
405 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
406 | error (_("Could not determine the array high bound")); | |
407 | ||
408 | if (options->prettyformat_arrays) | |
409 | { | |
410 | print_spaces_filtered (2 + 2 * recurse, stream); | |
411 | } | |
412 | ||
413 | fprintf_filtered (stream, "{"); | |
414 | val_print_array_elements (type, valaddr, embedded_offset, | |
415 | address, stream, | |
416 | recurse, original_value, options, 0); | |
417 | fprintf_filtered (stream, "}"); | |
418 | } | |
419 | else | |
420 | { | |
421 | /* Array of unspecified length: treat like pointer to first elt. */ | |
422 | print_unpacked_pointer (type, elttype, address + embedded_offset, stream, | |
423 | options); | |
424 | } | |
425 | ||
426 | } | |
427 | ||
81eb921a SM |
428 | /* generic_val_print helper for TYPE_CODE_PTR. */ |
429 | ||
430 | static void | |
431 | generic_val_print_ptr (struct type *type, const gdb_byte *valaddr, | |
432 | int embedded_offset, struct ui_file *stream, | |
433 | const struct value *original_value, | |
434 | const struct value_print_options *options) | |
435 | { | |
436 | if (options->format && options->format != 's') | |
437 | { | |
438 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
439 | original_value, options, 0, stream); | |
440 | } | |
441 | else | |
442 | { | |
443 | struct type *unresolved_elttype = TYPE_TARGET_TYPE(type); | |
444 | struct type *elttype = check_typedef (unresolved_elttype); | |
445 | CORE_ADDR addr = unpack_pointer (type, valaddr + embedded_offset); | |
446 | ||
447 | print_unpacked_pointer (type, elttype, addr, stream, options); | |
448 | } | |
449 | } | |
450 | ||
45000ea2 SM |
451 | |
452 | /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */ | |
453 | ||
454 | static void | |
455 | generic_val_print_memberptr (struct type *type, const gdb_byte *valaddr, | |
456 | int embedded_offset, struct ui_file *stream, | |
457 | const struct value *original_value, | |
458 | const struct value_print_options *options) | |
459 | { | |
460 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
461 | original_value, options, 0, stream); | |
462 | } | |
463 | ||
fe43fede SM |
464 | /* generic_val_print helper for TYPE_CODE_REF. */ |
465 | ||
466 | static void | |
467 | generic_val_print_ref (struct type *type, const gdb_byte *valaddr, | |
468 | int embedded_offset, struct ui_file *stream, int recurse, | |
469 | const struct value *original_value, | |
470 | const struct value_print_options *options) | |
471 | { | |
472 | struct gdbarch *gdbarch = get_type_arch (type); | |
473 | struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type)); | |
474 | ||
475 | if (options->addressprint) | |
476 | { | |
477 | CORE_ADDR addr | |
478 | = extract_typed_address (valaddr + embedded_offset, type); | |
479 | ||
480 | fprintf_filtered (stream, "@"); | |
481 | fputs_filtered (paddress (gdbarch, addr), stream); | |
482 | if (options->deref_ref) | |
483 | fputs_filtered (": ", stream); | |
484 | } | |
485 | /* De-reference the reference. */ | |
486 | if (options->deref_ref) | |
487 | { | |
488 | if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF) | |
489 | { | |
490 | struct value *deref_val; | |
491 | ||
492 | deref_val = coerce_ref_if_computed (original_value); | |
493 | if (deref_val != NULL) | |
494 | { | |
495 | /* More complicated computed references are not supported. */ | |
496 | gdb_assert (embedded_offset == 0); | |
497 | } | |
498 | else | |
499 | deref_val = value_at (TYPE_TARGET_TYPE (type), | |
500 | unpack_pointer (type, | |
501 | (valaddr | |
502 | + embedded_offset))); | |
503 | ||
504 | common_val_print (deref_val, stream, recurse, options, | |
505 | current_language); | |
506 | } | |
507 | else | |
508 | fputs_filtered ("???", stream); | |
509 | } | |
510 | } | |
511 | ||
ef0bc0dd SM |
512 | /* generic_val_print helper for TYPE_CODE_ENUM. */ |
513 | ||
514 | static void | |
515 | generic_val_print_enum (struct type *type, const gdb_byte *valaddr, | |
516 | int embedded_offset, struct ui_file *stream, | |
517 | const struct value *original_value, | |
518 | const struct value_print_options *options) | |
519 | { | |
520 | unsigned int i; | |
521 | unsigned int len; | |
522 | LONGEST val; | |
523 | ||
524 | if (options->format) | |
525 | { | |
526 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
527 | original_value, options, 0, stream); | |
528 | return; | |
529 | } | |
530 | len = TYPE_NFIELDS (type); | |
531 | val = unpack_long (type, valaddr + embedded_offset); | |
532 | for (i = 0; i < len; i++) | |
533 | { | |
534 | QUIT; | |
535 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
536 | { | |
537 | break; | |
538 | } | |
539 | } | |
540 | if (i < len) | |
541 | { | |
542 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
543 | } | |
544 | else if (TYPE_FLAG_ENUM (type)) | |
545 | { | |
546 | int first = 1; | |
547 | ||
548 | /* We have a "flag" enum, so we try to decompose it into | |
549 | pieces as appropriate. A flag enum has disjoint | |
550 | constants by definition. */ | |
551 | fputs_filtered ("(", stream); | |
552 | for (i = 0; i < len; ++i) | |
553 | { | |
554 | QUIT; | |
555 | ||
556 | if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0) | |
557 | { | |
558 | if (!first) | |
559 | fputs_filtered (" | ", stream); | |
560 | first = 0; | |
561 | ||
562 | val &= ~TYPE_FIELD_ENUMVAL (type, i); | |
563 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
564 | } | |
565 | } | |
566 | ||
567 | if (first || val != 0) | |
568 | { | |
569 | if (!first) | |
570 | fputs_filtered (" | ", stream); | |
571 | fputs_filtered ("unknown: ", stream); | |
572 | print_longest (stream, 'd', 0, val); | |
573 | } | |
574 | ||
575 | fputs_filtered (")", stream); | |
576 | } | |
577 | else | |
578 | print_longest (stream, 'd', 0, val); | |
579 | } | |
580 | ||
d93880bd SM |
581 | /* generic_val_print helper for TYPE_CODE_FLAGS. */ |
582 | ||
583 | static void | |
584 | generic_val_print_flags (struct type *type, const gdb_byte *valaddr, | |
585 | int embedded_offset, struct ui_file *stream, | |
586 | const struct value *original_value, | |
587 | const struct value_print_options *options) | |
588 | ||
589 | { | |
590 | if (options->format) | |
591 | val_print_scalar_formatted (type, valaddr, embedded_offset, original_value, | |
592 | options, 0, stream); | |
593 | else | |
594 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); | |
595 | } | |
596 | ||
4a8c372f SM |
597 | /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */ |
598 | ||
599 | static void | |
600 | generic_val_print_func (struct type *type, const gdb_byte *valaddr, | |
601 | int embedded_offset, CORE_ADDR address, | |
602 | struct ui_file *stream, | |
603 | const struct value *original_value, | |
604 | const struct value_print_options *options) | |
605 | { | |
606 | struct gdbarch *gdbarch = get_type_arch (type); | |
607 | ||
608 | if (options->format) | |
609 | { | |
610 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
611 | original_value, options, 0, stream); | |
612 | } | |
613 | else | |
614 | { | |
615 | /* FIXME, we should consider, at least for ANSI C language, | |
616 | eliminating the distinction made between FUNCs and POINTERs | |
617 | to FUNCs. */ | |
618 | fprintf_filtered (stream, "{"); | |
619 | type_print (type, "", stream, -1); | |
620 | fprintf_filtered (stream, "} "); | |
621 | /* Try to print what function it points to, and its address. */ | |
622 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
623 | } | |
624 | } | |
625 | ||
e5bead4b SM |
626 | /* generic_val_print helper for TYPE_CODE_BOOL. */ |
627 | ||
628 | static void | |
629 | generic_val_print_bool (struct type *type, const gdb_byte *valaddr, | |
630 | int embedded_offset, struct ui_file *stream, | |
631 | const struct value *original_value, | |
632 | const struct value_print_options *options, | |
633 | const struct generic_val_print_decorations *decorations) | |
634 | { | |
635 | LONGEST val; | |
636 | ||
637 | if (options->format || options->output_format) | |
638 | { | |
639 | struct value_print_options opts = *options; | |
640 | opts.format = (options->format ? options->format | |
641 | : options->output_format); | |
642 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
643 | original_value, &opts, 0, stream); | |
644 | } | |
645 | else | |
646 | { | |
647 | val = unpack_long (type, valaddr + embedded_offset); | |
648 | if (val == 0) | |
649 | fputs_filtered (decorations->false_name, stream); | |
650 | else if (val == 1) | |
651 | fputs_filtered (decorations->true_name, stream); | |
652 | else | |
653 | print_longest (stream, 'd', 0, val); | |
654 | } | |
655 | } | |
656 | ||
b21b6342 SM |
657 | /* generic_val_print helper for TYPE_CODE_INT. */ |
658 | ||
659 | static void | |
660 | generic_val_print_int (struct type *type, const gdb_byte *valaddr, | |
661 | int embedded_offset, struct ui_file *stream, | |
662 | const struct value *original_value, | |
663 | const struct value_print_options *options) | |
664 | { | |
665 | if (options->format || options->output_format) | |
666 | { | |
667 | struct value_print_options opts = *options; | |
668 | ||
669 | opts.format = (options->format ? options->format | |
670 | : options->output_format); | |
671 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
672 | original_value, &opts, 0, stream); | |
673 | } | |
674 | else | |
675 | val_print_type_code_int (type, valaddr + embedded_offset, stream); | |
676 | } | |
677 | ||
e88acd96 TT |
678 | /* A generic val_print that is suitable for use by language |
679 | implementations of the la_val_print method. This function can | |
680 | handle most type codes, though not all, notably exception | |
681 | TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by | |
682 | the caller. | |
683 | ||
684 | Most arguments are as to val_print. | |
685 | ||
686 | The additional DECORATIONS argument can be used to customize the | |
687 | output in some small, language-specific ways. */ | |
688 | ||
689 | void | |
690 | generic_val_print (struct type *type, const gdb_byte *valaddr, | |
691 | int embedded_offset, CORE_ADDR address, | |
692 | struct ui_file *stream, int recurse, | |
693 | const struct value *original_value, | |
694 | const struct value_print_options *options, | |
695 | const struct generic_val_print_decorations *decorations) | |
696 | { | |
e88acd96 | 697 | struct type *unresolved_type = type; |
e88acd96 | 698 | LONGEST val; |
e88acd96 | 699 | |
f168693b | 700 | type = check_typedef (type); |
e88acd96 TT |
701 | switch (TYPE_CODE (type)) |
702 | { | |
703 | case TYPE_CODE_ARRAY: | |
557dbe8a SM |
704 | generic_val_print_array (type, valaddr, embedded_offset, address, stream, |
705 | recurse, original_value, options); | |
9f436164 | 706 | break; |
e88acd96 TT |
707 | |
708 | case TYPE_CODE_MEMBERPTR: | |
45000ea2 SM |
709 | generic_val_print_memberptr (type, valaddr, embedded_offset, stream, |
710 | original_value, options); | |
e88acd96 TT |
711 | break; |
712 | ||
713 | case TYPE_CODE_PTR: | |
81eb921a SM |
714 | generic_val_print_ptr (type, valaddr, embedded_offset, stream, |
715 | original_value, options); | |
e88acd96 TT |
716 | break; |
717 | ||
718 | case TYPE_CODE_REF: | |
fe43fede SM |
719 | generic_val_print_ref (type, valaddr, embedded_offset, stream, recurse, |
720 | original_value, options); | |
e88acd96 TT |
721 | break; |
722 | ||
723 | case TYPE_CODE_ENUM: | |
ef0bc0dd SM |
724 | generic_val_print_enum (type, valaddr, embedded_offset, stream, |
725 | original_value, options); | |
e88acd96 TT |
726 | break; |
727 | ||
728 | case TYPE_CODE_FLAGS: | |
d93880bd SM |
729 | generic_val_print_flags (type, valaddr, embedded_offset, stream, |
730 | original_value, options); | |
e88acd96 TT |
731 | break; |
732 | ||
733 | case TYPE_CODE_FUNC: | |
734 | case TYPE_CODE_METHOD: | |
4a8c372f SM |
735 | generic_val_print_func (type, valaddr, embedded_offset, address, stream, |
736 | original_value, options); | |
e88acd96 TT |
737 | break; |
738 | ||
739 | case TYPE_CODE_BOOL: | |
e5bead4b SM |
740 | generic_val_print_bool (type, valaddr, embedded_offset, stream, |
741 | original_value, options, decorations); | |
e88acd96 TT |
742 | break; |
743 | ||
744 | case TYPE_CODE_RANGE: | |
0c9c3474 | 745 | /* FIXME: create_static_range_type does not set the unsigned bit in a |
e88acd96 TT |
746 | range type (I think it probably should copy it from the |
747 | target type), so we won't print values which are too large to | |
748 | fit in a signed integer correctly. */ | |
749 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just | |
750 | print with the target type, though, because the size of our | |
751 | type and the target type might differ). */ | |
752 | ||
753 | /* FALLTHROUGH */ | |
754 | ||
755 | case TYPE_CODE_INT: | |
b21b6342 SM |
756 | generic_val_print_int (type, valaddr, embedded_offset, stream, |
757 | original_value, options); | |
e88acd96 TT |
758 | break; |
759 | ||
760 | case TYPE_CODE_CHAR: | |
761 | if (options->format || options->output_format) | |
762 | { | |
763 | struct value_print_options opts = *options; | |
764 | ||
765 | opts.format = (options->format ? options->format | |
766 | : options->output_format); | |
767 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
768 | original_value, &opts, 0, stream); | |
769 | } | |
770 | else | |
771 | { | |
772 | val = unpack_long (type, valaddr + embedded_offset); | |
773 | if (TYPE_UNSIGNED (type)) | |
774 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
775 | else | |
776 | fprintf_filtered (stream, "%d", (int) val); | |
777 | fputs_filtered (" ", stream); | |
778 | LA_PRINT_CHAR (val, unresolved_type, stream); | |
779 | } | |
780 | break; | |
781 | ||
782 | case TYPE_CODE_FLT: | |
783 | if (options->format) | |
784 | { | |
785 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
786 | original_value, options, 0, stream); | |
787 | } | |
788 | else | |
789 | { | |
790 | print_floating (valaddr + embedded_offset, type, stream); | |
791 | } | |
792 | break; | |
793 | ||
794 | case TYPE_CODE_DECFLOAT: | |
795 | if (options->format) | |
796 | val_print_scalar_formatted (type, valaddr, embedded_offset, | |
797 | original_value, options, 0, stream); | |
798 | else | |
799 | print_decimal_floating (valaddr + embedded_offset, | |
800 | type, stream); | |
801 | break; | |
802 | ||
803 | case TYPE_CODE_VOID: | |
804 | fputs_filtered (decorations->void_name, stream); | |
805 | break; | |
806 | ||
807 | case TYPE_CODE_ERROR: | |
808 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); | |
809 | break; | |
810 | ||
811 | case TYPE_CODE_UNDEF: | |
812 | /* This happens (without TYPE_FLAG_STUB set) on systems which | |
813 | don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a | |
814 | "struct foo *bar" and no complete type for struct foo in that | |
815 | file. */ | |
816 | fprintf_filtered (stream, _("<incomplete type>")); | |
817 | break; | |
818 | ||
819 | case TYPE_CODE_COMPLEX: | |
820 | fprintf_filtered (stream, "%s", decorations->complex_prefix); | |
821 | if (options->format) | |
822 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), | |
823 | valaddr, embedded_offset, | |
824 | original_value, options, 0, stream); | |
825 | else | |
826 | print_floating (valaddr + embedded_offset, | |
827 | TYPE_TARGET_TYPE (type), | |
828 | stream); | |
829 | fprintf_filtered (stream, "%s", decorations->complex_infix); | |
830 | if (options->format) | |
831 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), | |
832 | valaddr, | |
833 | embedded_offset | |
834 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
835 | original_value, | |
836 | options, 0, stream); | |
837 | else | |
838 | print_floating (valaddr + embedded_offset | |
839 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), | |
840 | TYPE_TARGET_TYPE (type), | |
841 | stream); | |
842 | fprintf_filtered (stream, "%s", decorations->complex_suffix); | |
843 | break; | |
844 | ||
845 | case TYPE_CODE_UNION: | |
846 | case TYPE_CODE_STRUCT: | |
847 | case TYPE_CODE_METHODPTR: | |
848 | default: | |
849 | error (_("Unhandled type code %d in symbol table."), | |
850 | TYPE_CODE (type)); | |
851 | } | |
852 | gdb_flush (stream); | |
853 | } | |
854 | ||
32b72a42 PA |
855 | /* Print using the given LANGUAGE the data of type TYPE located at |
856 | VALADDR + EMBEDDED_OFFSET (within GDB), which came from the | |
857 | inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream | |
858 | STREAM according to OPTIONS. VAL is the whole object that came | |
859 | from ADDRESS. VALADDR must point to the head of VAL's contents | |
860 | buffer. | |
861 | ||
862 | The language printers will pass down an adjusted EMBEDDED_OFFSET to | |
863 | further helper subroutines as subfields of TYPE are printed. In | |
864 | such cases, VALADDR is passed down unadjusted, as well as VAL, so | |
865 | that VAL can be queried for metadata about the contents data being | |
866 | printed, using EMBEDDED_OFFSET as an offset into VAL's contents | |
867 | buffer. For example: "has this field been optimized out", or "I'm | |
868 | printing an object while inspecting a traceframe; has this | |
869 | particular piece of data been collected?". | |
870 | ||
871 | RECURSE indicates the amount of indentation to supply before | |
872 | continuation lines; this amount is roughly twice the value of | |
35c0084b | 873 | RECURSE. */ |
32b72a42 | 874 | |
35c0084b | 875 | void |
fc1a4b47 | 876 | val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d | 877 | CORE_ADDR address, struct ui_file *stream, int recurse, |
0e03807e | 878 | const struct value *val, |
79a45b7d | 879 | const struct value_print_options *options, |
d8ca156b | 880 | const struct language_defn *language) |
c906108c | 881 | { |
19ca80ba | 882 | int ret = 0; |
79a45b7d | 883 | struct value_print_options local_opts = *options; |
c906108c | 884 | struct type *real_type = check_typedef (type); |
79a45b7d | 885 | |
2a998fc0 DE |
886 | if (local_opts.prettyformat == Val_prettyformat_default) |
887 | local_opts.prettyformat = (local_opts.prettyformat_structs | |
888 | ? Val_prettyformat : Val_no_prettyformat); | |
c5aa993b | 889 | |
c906108c SS |
890 | QUIT; |
891 | ||
892 | /* Ensure that the type is complete and not just a stub. If the type is | |
893 | only a stub and we can't find and substitute its complete type, then | |
894 | print appropriate string and return. */ | |
895 | ||
74a9bb82 | 896 | if (TYPE_STUB (real_type)) |
c906108c | 897 | { |
0e03807e | 898 | fprintf_filtered (stream, _("<incomplete type>")); |
c906108c | 899 | gdb_flush (stream); |
35c0084b | 900 | return; |
c906108c | 901 | } |
c5aa993b | 902 | |
0e03807e | 903 | if (!valprint_check_validity (stream, real_type, embedded_offset, val)) |
35c0084b | 904 | return; |
0e03807e | 905 | |
a6bac58e TT |
906 | if (!options->raw) |
907 | { | |
6dddc817 DE |
908 | ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset, |
909 | address, stream, recurse, | |
910 | val, options, language); | |
a6bac58e | 911 | if (ret) |
35c0084b | 912 | return; |
a6bac58e TT |
913 | } |
914 | ||
915 | /* Handle summary mode. If the value is a scalar, print it; | |
916 | otherwise, print an ellipsis. */ | |
6211c335 | 917 | if (options->summary && !val_print_scalar_type_p (type)) |
a6bac58e TT |
918 | { |
919 | fprintf_filtered (stream, "..."); | |
35c0084b | 920 | return; |
a6bac58e TT |
921 | } |
922 | ||
492d29ea | 923 | TRY |
19ca80ba | 924 | { |
d3eab38a TT |
925 | language->la_val_print (type, valaddr, embedded_offset, address, |
926 | stream, recurse, val, | |
927 | &local_opts); | |
19ca80ba | 928 | } |
492d29ea PA |
929 | CATCH (except, RETURN_MASK_ERROR) |
930 | { | |
931 | fprintf_filtered (stream, _("<error reading variable>")); | |
932 | } | |
933 | END_CATCH | |
c906108c SS |
934 | } |
935 | ||
806048c6 | 936 | /* Check whether the value VAL is printable. Return 1 if it is; |
6501578c YQ |
937 | return 0 and print an appropriate error message to STREAM according to |
938 | OPTIONS if it is not. */ | |
c906108c | 939 | |
806048c6 | 940 | static int |
6501578c YQ |
941 | value_check_printable (struct value *val, struct ui_file *stream, |
942 | const struct value_print_options *options) | |
c906108c SS |
943 | { |
944 | if (val == 0) | |
945 | { | |
806048c6 | 946 | fprintf_filtered (stream, _("<address of value unknown>")); |
c906108c SS |
947 | return 0; |
948 | } | |
806048c6 | 949 | |
0e03807e | 950 | if (value_entirely_optimized_out (val)) |
c906108c | 951 | { |
6211c335 | 952 | if (options->summary && !val_print_scalar_type_p (value_type (val))) |
6501578c YQ |
953 | fprintf_filtered (stream, "..."); |
954 | else | |
901461f8 | 955 | val_print_optimized_out (val, stream); |
c906108c SS |
956 | return 0; |
957 | } | |
806048c6 | 958 | |
eebc056c AB |
959 | if (value_entirely_unavailable (val)) |
960 | { | |
961 | if (options->summary && !val_print_scalar_type_p (value_type (val))) | |
962 | fprintf_filtered (stream, "..."); | |
963 | else | |
964 | val_print_unavailable (stream); | |
965 | return 0; | |
966 | } | |
967 | ||
bc3b79fd TJB |
968 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION) |
969 | { | |
970 | fprintf_filtered (stream, _("<internal function %s>"), | |
971 | value_internal_function_name (val)); | |
972 | return 0; | |
973 | } | |
974 | ||
806048c6 DJ |
975 | return 1; |
976 | } | |
977 | ||
d8ca156b | 978 | /* Print using the given LANGUAGE the value VAL onto stream STREAM according |
79a45b7d | 979 | to OPTIONS. |
806048c6 | 980 | |
806048c6 DJ |
981 | This is a preferable interface to val_print, above, because it uses |
982 | GDB's value mechanism. */ | |
983 | ||
a1f5dd1b | 984 | void |
79a45b7d TT |
985 | common_val_print (struct value *val, struct ui_file *stream, int recurse, |
986 | const struct value_print_options *options, | |
d8ca156b | 987 | const struct language_defn *language) |
806048c6 | 988 | { |
6501578c | 989 | if (!value_check_printable (val, stream, options)) |
a1f5dd1b | 990 | return; |
806048c6 | 991 | |
0c3acc09 JB |
992 | if (language->la_language == language_ada) |
993 | /* The value might have a dynamic type, which would cause trouble | |
994 | below when trying to extract the value contents (since the value | |
995 | size is determined from the type size which is unknown). So | |
996 | get a fixed representation of our value. */ | |
997 | val = ada_to_fixed_value (val); | |
998 | ||
a1f5dd1b TT |
999 | val_print (value_type (val), value_contents_for_printing (val), |
1000 | value_embedded_offset (val), value_address (val), | |
1001 | stream, recurse, | |
1002 | val, options, language); | |
806048c6 DJ |
1003 | } |
1004 | ||
7348c5e1 | 1005 | /* Print on stream STREAM the value VAL according to OPTIONS. The value |
8e069a98 | 1006 | is printed using the current_language syntax. */ |
7348c5e1 | 1007 | |
8e069a98 | 1008 | void |
79a45b7d TT |
1009 | value_print (struct value *val, struct ui_file *stream, |
1010 | const struct value_print_options *options) | |
806048c6 | 1011 | { |
6501578c | 1012 | if (!value_check_printable (val, stream, options)) |
8e069a98 | 1013 | return; |
806048c6 | 1014 | |
a6bac58e TT |
1015 | if (!options->raw) |
1016 | { | |
6dddc817 DE |
1017 | int r |
1018 | = apply_ext_lang_val_pretty_printer (value_type (val), | |
1019 | value_contents_for_printing (val), | |
1020 | value_embedded_offset (val), | |
1021 | value_address (val), | |
1022 | stream, 0, | |
1023 | val, options, current_language); | |
a109c7c1 | 1024 | |
a6bac58e | 1025 | if (r) |
8e069a98 | 1026 | return; |
a6bac58e TT |
1027 | } |
1028 | ||
8e069a98 | 1029 | LA_VALUE_PRINT (val, stream, options); |
c906108c SS |
1030 | } |
1031 | ||
1032 | /* Called by various <lang>_val_print routines to print | |
1033 | TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the | |
1034 | value. STREAM is where to print the value. */ | |
1035 | ||
1036 | void | |
fc1a4b47 | 1037 | val_print_type_code_int (struct type *type, const gdb_byte *valaddr, |
fba45db2 | 1038 | struct ui_file *stream) |
c906108c | 1039 | { |
50810684 | 1040 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
d44e8473 | 1041 | |
c906108c SS |
1042 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) |
1043 | { | |
1044 | LONGEST val; | |
1045 | ||
1046 | if (TYPE_UNSIGNED (type) | |
1047 | && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type), | |
e17a4113 | 1048 | byte_order, &val)) |
c906108c SS |
1049 | { |
1050 | print_longest (stream, 'u', 0, val); | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | /* Signed, or we couldn't turn an unsigned value into a | |
1055 | LONGEST. For signed values, one could assume two's | |
1056 | complement (a reasonable assumption, I think) and do | |
1057 | better than this. */ | |
1058 | print_hex_chars (stream, (unsigned char *) valaddr, | |
d44e8473 | 1059 | TYPE_LENGTH (type), byte_order); |
c906108c SS |
1060 | } |
1061 | } | |
1062 | else | |
1063 | { | |
c906108c SS |
1064 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, |
1065 | unpack_long (type, valaddr)); | |
c906108c SS |
1066 | } |
1067 | } | |
1068 | ||
4f2aea11 MK |
1069 | void |
1070 | val_print_type_code_flags (struct type *type, const gdb_byte *valaddr, | |
1071 | struct ui_file *stream) | |
1072 | { | |
befae759 | 1073 | ULONGEST val = unpack_long (type, valaddr); |
4f2aea11 MK |
1074 | int bitpos, nfields = TYPE_NFIELDS (type); |
1075 | ||
1076 | fputs_filtered ("[ ", stream); | |
1077 | for (bitpos = 0; bitpos < nfields; bitpos++) | |
1078 | { | |
316703b9 MK |
1079 | if (TYPE_FIELD_BITPOS (type, bitpos) != -1 |
1080 | && (val & ((ULONGEST)1 << bitpos))) | |
4f2aea11 MK |
1081 | { |
1082 | if (TYPE_FIELD_NAME (type, bitpos)) | |
1083 | fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos)); | |
1084 | else | |
1085 | fprintf_filtered (stream, "#%d ", bitpos); | |
1086 | } | |
1087 | } | |
1088 | fputs_filtered ("]", stream); | |
19c37f24 | 1089 | } |
ab2188aa PA |
1090 | |
1091 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
1092 | according to OPTIONS and SIZE on STREAM. Format i is not supported | |
1093 | at this level. | |
1094 | ||
1095 | This is how the elements of an array or structure are printed | |
1096 | with a format. */ | |
ab2188aa PA |
1097 | |
1098 | void | |
1099 | val_print_scalar_formatted (struct type *type, | |
1100 | const gdb_byte *valaddr, int embedded_offset, | |
1101 | const struct value *val, | |
1102 | const struct value_print_options *options, | |
1103 | int size, | |
1104 | struct ui_file *stream) | |
1105 | { | |
1106 | gdb_assert (val != NULL); | |
1107 | gdb_assert (valaddr == value_contents_for_printing_const (val)); | |
1108 | ||
1109 | /* If we get here with a string format, try again without it. Go | |
1110 | all the way back to the language printers, which may call us | |
1111 | again. */ | |
1112 | if (options->format == 's') | |
1113 | { | |
1114 | struct value_print_options opts = *options; | |
1115 | opts.format = 0; | |
1116 | opts.deref_ref = 0; | |
1117 | val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts, | |
1118 | current_language); | |
1119 | return; | |
1120 | } | |
1121 | ||
1122 | /* A scalar object that does not have all bits available can't be | |
1123 | printed, because all bits contribute to its representation. */ | |
9a0dc9e3 PA |
1124 | if (value_bits_any_optimized_out (val, |
1125 | TARGET_CHAR_BIT * embedded_offset, | |
1126 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
901461f8 | 1127 | val_print_optimized_out (val, stream); |
4e07d55f PA |
1128 | else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) |
1129 | val_print_unavailable (stream); | |
ab2188aa PA |
1130 | else |
1131 | print_scalar_formatted (valaddr + embedded_offset, type, | |
1132 | options, size, stream); | |
4f2aea11 MK |
1133 | } |
1134 | ||
c906108c SS |
1135 | /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. |
1136 | The raison d'etre of this function is to consolidate printing of | |
581e13c1 | 1137 | LONG_LONG's into this one function. The format chars b,h,w,g are |
bb599908 | 1138 | from print_scalar_formatted(). Numbers are printed using C |
581e13c1 | 1139 | format. |
bb599908 PH |
1140 | |
1141 | USE_C_FORMAT means to use C format in all cases. Without it, | |
1142 | 'o' and 'x' format do not include the standard C radix prefix | |
1143 | (leading 0 or 0x). | |
1144 | ||
1145 | Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL | |
1146 | and was intended to request formating according to the current | |
1147 | language and would be used for most integers that GDB prints. The | |
1148 | exceptional cases were things like protocols where the format of | |
1149 | the integer is a protocol thing, not a user-visible thing). The | |
1150 | parameter remains to preserve the information of what things might | |
1151 | be printed with language-specific format, should we ever resurrect | |
581e13c1 | 1152 | that capability. */ |
c906108c SS |
1153 | |
1154 | void | |
bb599908 | 1155 | print_longest (struct ui_file *stream, int format, int use_c_format, |
fba45db2 | 1156 | LONGEST val_long) |
c906108c | 1157 | { |
2bfb72ee AC |
1158 | const char *val; |
1159 | ||
c906108c SS |
1160 | switch (format) |
1161 | { | |
1162 | case 'd': | |
bb599908 | 1163 | val = int_string (val_long, 10, 1, 0, 1); break; |
c906108c | 1164 | case 'u': |
bb599908 | 1165 | val = int_string (val_long, 10, 0, 0, 1); break; |
c906108c | 1166 | case 'x': |
bb599908 | 1167 | val = int_string (val_long, 16, 0, 0, use_c_format); break; |
c906108c | 1168 | case 'b': |
bb599908 | 1169 | val = int_string (val_long, 16, 0, 2, 1); break; |
c906108c | 1170 | case 'h': |
bb599908 | 1171 | val = int_string (val_long, 16, 0, 4, 1); break; |
c906108c | 1172 | case 'w': |
bb599908 | 1173 | val = int_string (val_long, 16, 0, 8, 1); break; |
c906108c | 1174 | case 'g': |
bb599908 | 1175 | val = int_string (val_long, 16, 0, 16, 1); break; |
c906108c SS |
1176 | break; |
1177 | case 'o': | |
bb599908 | 1178 | val = int_string (val_long, 8, 0, 0, use_c_format); break; |
c906108c | 1179 | default: |
3e43a32a MS |
1180 | internal_error (__FILE__, __LINE__, |
1181 | _("failed internal consistency check")); | |
bb599908 | 1182 | } |
2bfb72ee | 1183 | fputs_filtered (val, stream); |
c906108c SS |
1184 | } |
1185 | ||
c906108c SS |
1186 | /* This used to be a macro, but I don't think it is called often enough |
1187 | to merit such treatment. */ | |
1188 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of | |
1189 | arguments to a function, number in a value history, register number, etc.) | |
1190 | where the value must not be larger than can fit in an int. */ | |
1191 | ||
1192 | int | |
fba45db2 | 1193 | longest_to_int (LONGEST arg) |
c906108c | 1194 | { |
581e13c1 | 1195 | /* Let the compiler do the work. */ |
c906108c SS |
1196 | int rtnval = (int) arg; |
1197 | ||
581e13c1 | 1198 | /* Check for overflows or underflows. */ |
c906108c SS |
1199 | if (sizeof (LONGEST) > sizeof (int)) |
1200 | { | |
1201 | if (rtnval != arg) | |
1202 | { | |
8a3fe4f8 | 1203 | error (_("Value out of range.")); |
c906108c SS |
1204 | } |
1205 | } | |
1206 | return (rtnval); | |
1207 | } | |
1208 | ||
a73c86fb AC |
1209 | /* Print a floating point value of type TYPE (not always a |
1210 | TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */ | |
c906108c SS |
1211 | |
1212 | void | |
fc1a4b47 | 1213 | print_floating (const gdb_byte *valaddr, struct type *type, |
c84141d6 | 1214 | struct ui_file *stream) |
c906108c SS |
1215 | { |
1216 | DOUBLEST doub; | |
1217 | int inv; | |
a73c86fb | 1218 | const struct floatformat *fmt = NULL; |
c906108c | 1219 | unsigned len = TYPE_LENGTH (type); |
20389057 | 1220 | enum float_kind kind; |
c5aa993b | 1221 | |
a73c86fb AC |
1222 | /* If it is a floating-point, check for obvious problems. */ |
1223 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
1224 | fmt = floatformat_from_type (type); | |
20389057 | 1225 | if (fmt != NULL) |
39424bef | 1226 | { |
20389057 DJ |
1227 | kind = floatformat_classify (fmt, valaddr); |
1228 | if (kind == float_nan) | |
1229 | { | |
1230 | if (floatformat_is_negative (fmt, valaddr)) | |
1231 | fprintf_filtered (stream, "-"); | |
1232 | fprintf_filtered (stream, "nan("); | |
1233 | fputs_filtered ("0x", stream); | |
1234 | fputs_filtered (floatformat_mantissa (fmt, valaddr), stream); | |
1235 | fprintf_filtered (stream, ")"); | |
1236 | return; | |
1237 | } | |
1238 | else if (kind == float_infinite) | |
1239 | { | |
1240 | if (floatformat_is_negative (fmt, valaddr)) | |
1241 | fputs_filtered ("-", stream); | |
1242 | fputs_filtered ("inf", stream); | |
1243 | return; | |
1244 | } | |
7355ddba | 1245 | } |
c906108c | 1246 | |
a73c86fb AC |
1247 | /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating() |
1248 | isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double | |
1249 | needs to be used as that takes care of any necessary type | |
1250 | conversions. Such conversions are of course direct to DOUBLEST | |
1251 | and disregard any possible target floating point limitations. | |
1252 | For instance, a u64 would be converted and displayed exactly on a | |
1253 | host with 80 bit DOUBLEST but with loss of information on a host | |
1254 | with 64 bit DOUBLEST. */ | |
c2f05ac9 | 1255 | |
c906108c SS |
1256 | doub = unpack_double (type, valaddr, &inv); |
1257 | if (inv) | |
1258 | { | |
1259 | fprintf_filtered (stream, "<invalid float value>"); | |
1260 | return; | |
1261 | } | |
1262 | ||
39424bef MK |
1263 | /* FIXME: kettenis/2001-01-20: The following code makes too much |
1264 | assumptions about the host and target floating point format. */ | |
1265 | ||
a73c86fb | 1266 | /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may |
c41b8590 | 1267 | not necessarily be a TYPE_CODE_FLT, the below ignores that and |
a73c86fb AC |
1268 | instead uses the type's length to determine the precision of the |
1269 | floating-point value being printed. */ | |
c2f05ac9 | 1270 | |
c906108c | 1271 | if (len < sizeof (double)) |
c5aa993b | 1272 | fprintf_filtered (stream, "%.9g", (double) doub); |
c906108c | 1273 | else if (len == sizeof (double)) |
c5aa993b | 1274 | fprintf_filtered (stream, "%.17g", (double) doub); |
c906108c SS |
1275 | else |
1276 | #ifdef PRINTF_HAS_LONG_DOUBLE | |
1277 | fprintf_filtered (stream, "%.35Lg", doub); | |
1278 | #else | |
39424bef MK |
1279 | /* This at least wins with values that are representable as |
1280 | doubles. */ | |
c906108c SS |
1281 | fprintf_filtered (stream, "%.17g", (double) doub); |
1282 | #endif | |
1283 | } | |
1284 | ||
7678ef8f TJB |
1285 | void |
1286 | print_decimal_floating (const gdb_byte *valaddr, struct type *type, | |
1287 | struct ui_file *stream) | |
1288 | { | |
e17a4113 | 1289 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
7678ef8f TJB |
1290 | char decstr[MAX_DECIMAL_STRING]; |
1291 | unsigned len = TYPE_LENGTH (type); | |
1292 | ||
e17a4113 | 1293 | decimal_to_string (valaddr, len, byte_order, decstr); |
7678ef8f TJB |
1294 | fputs_filtered (decstr, stream); |
1295 | return; | |
1296 | } | |
1297 | ||
c5aa993b | 1298 | void |
fc1a4b47 | 1299 | print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1300 | unsigned len, enum bfd_endian byte_order) |
c906108c SS |
1301 | { |
1302 | ||
1303 | #define BITS_IN_BYTES 8 | |
1304 | ||
fc1a4b47 | 1305 | const gdb_byte *p; |
745b8ca0 | 1306 | unsigned int i; |
c5aa993b | 1307 | int b; |
c906108c SS |
1308 | |
1309 | /* Declared "int" so it will be signed. | |
581e13c1 MS |
1310 | This ensures that right shift will shift in zeros. */ |
1311 | ||
c5aa993b | 1312 | const int mask = 0x080; |
c906108c SS |
1313 | |
1314 | /* FIXME: We should be not printing leading zeroes in most cases. */ | |
1315 | ||
d44e8473 | 1316 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1317 | { |
1318 | for (p = valaddr; | |
1319 | p < valaddr + len; | |
1320 | p++) | |
1321 | { | |
c5aa993b | 1322 | /* Every byte has 8 binary characters; peel off |
581e13c1 MS |
1323 | and print from the MSB end. */ |
1324 | ||
c5aa993b JM |
1325 | for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++) |
1326 | { | |
1327 | if (*p & (mask >> i)) | |
1328 | b = 1; | |
1329 | else | |
1330 | b = 0; | |
1331 | ||
1332 | fprintf_filtered (stream, "%1d", b); | |
1333 | } | |
c906108c SS |
1334 | } |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | for (p = valaddr + len - 1; | |
1339 | p >= valaddr; | |
1340 | p--) | |
1341 | { | |
c5aa993b JM |
1342 | for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++) |
1343 | { | |
1344 | if (*p & (mask >> i)) | |
1345 | b = 1; | |
1346 | else | |
1347 | b = 0; | |
1348 | ||
1349 | fprintf_filtered (stream, "%1d", b); | |
1350 | } | |
c906108c SS |
1351 | } |
1352 | } | |
c906108c SS |
1353 | } |
1354 | ||
1355 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
1356 | Print it in octal on stream or format it in buf. */ |
1357 | ||
c906108c | 1358 | void |
fc1a4b47 | 1359 | print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1360 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1361 | { |
fc1a4b47 | 1362 | const gdb_byte *p; |
c906108c | 1363 | unsigned char octa1, octa2, octa3, carry; |
c5aa993b JM |
1364 | int cycle; |
1365 | ||
c906108c SS |
1366 | /* FIXME: We should be not printing leading zeroes in most cases. */ |
1367 | ||
1368 | ||
1369 | /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track | |
1370 | * the extra bits, which cycle every three bytes: | |
1371 | * | |
1372 | * Byte side: 0 1 2 3 | |
1373 | * | | | | | |
1374 | * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 | | |
1375 | * | |
1376 | * Octal side: 0 1 carry 3 4 carry ... | |
1377 | * | |
1378 | * Cycle number: 0 1 2 | |
1379 | * | |
1380 | * But of course we are printing from the high side, so we have to | |
1381 | * figure out where in the cycle we are so that we end up with no | |
1382 | * left over bits at the end. | |
1383 | */ | |
1384 | #define BITS_IN_OCTAL 3 | |
1385 | #define HIGH_ZERO 0340 | |
1386 | #define LOW_ZERO 0016 | |
1387 | #define CARRY_ZERO 0003 | |
1388 | #define HIGH_ONE 0200 | |
1389 | #define MID_ONE 0160 | |
1390 | #define LOW_ONE 0016 | |
1391 | #define CARRY_ONE 0001 | |
1392 | #define HIGH_TWO 0300 | |
1393 | #define MID_TWO 0070 | |
1394 | #define LOW_TWO 0007 | |
1395 | ||
1396 | /* For 32 we start in cycle 2, with two bits and one bit carry; | |
581e13c1 MS |
1397 | for 64 in cycle in cycle 1, with one bit and a two bit carry. */ |
1398 | ||
c906108c SS |
1399 | cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL; |
1400 | carry = 0; | |
c5aa993b | 1401 | |
bb599908 | 1402 | fputs_filtered ("0", stream); |
d44e8473 | 1403 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1404 | { |
1405 | for (p = valaddr; | |
1406 | p < valaddr + len; | |
1407 | p++) | |
1408 | { | |
c5aa993b JM |
1409 | switch (cycle) |
1410 | { | |
1411 | case 0: | |
581e13c1 MS |
1412 | /* No carry in, carry out two bits. */ |
1413 | ||
c5aa993b JM |
1414 | octa1 = (HIGH_ZERO & *p) >> 5; |
1415 | octa2 = (LOW_ZERO & *p) >> 2; | |
1416 | carry = (CARRY_ZERO & *p); | |
1417 | fprintf_filtered (stream, "%o", octa1); | |
1418 | fprintf_filtered (stream, "%o", octa2); | |
1419 | break; | |
1420 | ||
1421 | case 1: | |
581e13c1 MS |
1422 | /* Carry in two bits, carry out one bit. */ |
1423 | ||
c5aa993b JM |
1424 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1425 | octa2 = (MID_ONE & *p) >> 4; | |
1426 | octa3 = (LOW_ONE & *p) >> 1; | |
1427 | carry = (CARRY_ONE & *p); | |
1428 | fprintf_filtered (stream, "%o", octa1); | |
1429 | fprintf_filtered (stream, "%o", octa2); | |
1430 | fprintf_filtered (stream, "%o", octa3); | |
1431 | break; | |
1432 | ||
1433 | case 2: | |
581e13c1 MS |
1434 | /* Carry in one bit, no carry out. */ |
1435 | ||
c5aa993b JM |
1436 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1437 | octa2 = (MID_TWO & *p) >> 3; | |
1438 | octa3 = (LOW_TWO & *p); | |
1439 | carry = 0; | |
1440 | fprintf_filtered (stream, "%o", octa1); | |
1441 | fprintf_filtered (stream, "%o", octa2); | |
1442 | fprintf_filtered (stream, "%o", octa3); | |
1443 | break; | |
1444 | ||
1445 | default: | |
8a3fe4f8 | 1446 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1447 | } |
1448 | ||
1449 | cycle++; | |
1450 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1451 | } |
1452 | } | |
1453 | else | |
1454 | { | |
1455 | for (p = valaddr + len - 1; | |
1456 | p >= valaddr; | |
1457 | p--) | |
1458 | { | |
c5aa993b JM |
1459 | switch (cycle) |
1460 | { | |
1461 | case 0: | |
1462 | /* Carry out, no carry in */ | |
581e13c1 | 1463 | |
c5aa993b JM |
1464 | octa1 = (HIGH_ZERO & *p) >> 5; |
1465 | octa2 = (LOW_ZERO & *p) >> 2; | |
1466 | carry = (CARRY_ZERO & *p); | |
1467 | fprintf_filtered (stream, "%o", octa1); | |
1468 | fprintf_filtered (stream, "%o", octa2); | |
1469 | break; | |
1470 | ||
1471 | case 1: | |
1472 | /* Carry in, carry out */ | |
581e13c1 | 1473 | |
c5aa993b JM |
1474 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1475 | octa2 = (MID_ONE & *p) >> 4; | |
1476 | octa3 = (LOW_ONE & *p) >> 1; | |
1477 | carry = (CARRY_ONE & *p); | |
1478 | fprintf_filtered (stream, "%o", octa1); | |
1479 | fprintf_filtered (stream, "%o", octa2); | |
1480 | fprintf_filtered (stream, "%o", octa3); | |
1481 | break; | |
1482 | ||
1483 | case 2: | |
1484 | /* Carry in, no carry out */ | |
581e13c1 | 1485 | |
c5aa993b JM |
1486 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1487 | octa2 = (MID_TWO & *p) >> 3; | |
1488 | octa3 = (LOW_TWO & *p); | |
1489 | carry = 0; | |
1490 | fprintf_filtered (stream, "%o", octa1); | |
1491 | fprintf_filtered (stream, "%o", octa2); | |
1492 | fprintf_filtered (stream, "%o", octa3); | |
1493 | break; | |
1494 | ||
1495 | default: | |
8a3fe4f8 | 1496 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1497 | } |
1498 | ||
1499 | cycle++; | |
1500 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1501 | } |
1502 | } | |
1503 | ||
c906108c SS |
1504 | } |
1505 | ||
1506 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
1507 | Print it in decimal on stream or format it in buf. */ |
1508 | ||
c906108c | 1509 | void |
fc1a4b47 | 1510 | print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1511 | unsigned len, enum bfd_endian byte_order) |
c906108c SS |
1512 | { |
1513 | #define TEN 10 | |
c5aa993b | 1514 | #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */ |
c906108c SS |
1515 | #define CARRY_LEFT( x ) ((x) % TEN) |
1516 | #define SHIFT( x ) ((x) << 4) | |
c906108c SS |
1517 | #define LOW_NIBBLE( x ) ( (x) & 0x00F) |
1518 | #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4) | |
1519 | ||
fc1a4b47 | 1520 | const gdb_byte *p; |
c906108c | 1521 | unsigned char *digits; |
c5aa993b JM |
1522 | int carry; |
1523 | int decimal_len; | |
1524 | int i, j, decimal_digits; | |
1525 | int dummy; | |
1526 | int flip; | |
1527 | ||
c906108c | 1528 | /* Base-ten number is less than twice as many digits |
581e13c1 MS |
1529 | as the base 16 number, which is 2 digits per byte. */ |
1530 | ||
c906108c | 1531 | decimal_len = len * 2 * 2; |
3c37485b | 1532 | digits = xmalloc (decimal_len); |
c906108c | 1533 | |
c5aa993b JM |
1534 | for (i = 0; i < decimal_len; i++) |
1535 | { | |
c906108c | 1536 | digits[i] = 0; |
c5aa993b | 1537 | } |
c906108c | 1538 | |
c906108c SS |
1539 | /* Ok, we have an unknown number of bytes of data to be printed in |
1540 | * decimal. | |
1541 | * | |
1542 | * Given a hex number (in nibbles) as XYZ, we start by taking X and | |
1543 | * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply | |
1544 | * the nibbles by 16, add Y and re-decimalize. Repeat with Z. | |
1545 | * | |
1546 | * The trick is that "digits" holds a base-10 number, but sometimes | |
581e13c1 | 1547 | * the individual digits are > 10. |
c906108c SS |
1548 | * |
1549 | * Outer loop is per nibble (hex digit) of input, from MSD end to | |
1550 | * LSD end. | |
1551 | */ | |
c5aa993b | 1552 | decimal_digits = 0; /* Number of decimal digits so far */ |
d44e8473 | 1553 | p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1; |
c906108c | 1554 | flip = 0; |
d44e8473 | 1555 | while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr)) |
c5aa993b | 1556 | { |
c906108c SS |
1557 | /* |
1558 | * Multiply current base-ten number by 16 in place. | |
1559 | * Each digit was between 0 and 9, now is between | |
1560 | * 0 and 144. | |
1561 | */ | |
c5aa993b JM |
1562 | for (j = 0; j < decimal_digits; j++) |
1563 | { | |
1564 | digits[j] = SHIFT (digits[j]); | |
1565 | } | |
1566 | ||
c906108c SS |
1567 | /* Take the next nibble off the input and add it to what |
1568 | * we've got in the LSB position. Bottom 'digit' is now | |
1569 | * between 0 and 159. | |
1570 | * | |
1571 | * "flip" is used to run this loop twice for each byte. | |
1572 | */ | |
c5aa993b JM |
1573 | if (flip == 0) |
1574 | { | |
581e13c1 MS |
1575 | /* Take top nibble. */ |
1576 | ||
c5aa993b JM |
1577 | digits[0] += HIGH_NIBBLE (*p); |
1578 | flip = 1; | |
1579 | } | |
1580 | else | |
1581 | { | |
581e13c1 MS |
1582 | /* Take low nibble and bump our pointer "p". */ |
1583 | ||
c5aa993b | 1584 | digits[0] += LOW_NIBBLE (*p); |
d44e8473 MD |
1585 | if (byte_order == BFD_ENDIAN_BIG) |
1586 | p++; | |
1587 | else | |
1588 | p--; | |
c5aa993b JM |
1589 | flip = 0; |
1590 | } | |
c906108c SS |
1591 | |
1592 | /* Re-decimalize. We have to do this often enough | |
1593 | * that we don't overflow, but once per nibble is | |
1594 | * overkill. Easier this way, though. Note that the | |
1595 | * carry is often larger than 10 (e.g. max initial | |
1596 | * carry out of lowest nibble is 15, could bubble all | |
1597 | * the way up greater than 10). So we have to do | |
1598 | * the carrying beyond the last current digit. | |
1599 | */ | |
1600 | carry = 0; | |
c5aa993b JM |
1601 | for (j = 0; j < decimal_len - 1; j++) |
1602 | { | |
1603 | digits[j] += carry; | |
1604 | ||
1605 | /* "/" won't handle an unsigned char with | |
1606 | * a value that if signed would be negative. | |
1607 | * So extend to longword int via "dummy". | |
1608 | */ | |
1609 | dummy = digits[j]; | |
1610 | carry = CARRY_OUT (dummy); | |
1611 | digits[j] = CARRY_LEFT (dummy); | |
1612 | ||
1613 | if (j >= decimal_digits && carry == 0) | |
1614 | { | |
1615 | /* | |
1616 | * All higher digits are 0 and we | |
1617 | * no longer have a carry. | |
1618 | * | |
1619 | * Note: "j" is 0-based, "decimal_digits" is | |
1620 | * 1-based. | |
1621 | */ | |
1622 | decimal_digits = j + 1; | |
1623 | break; | |
1624 | } | |
1625 | } | |
1626 | } | |
c906108c SS |
1627 | |
1628 | /* Ok, now "digits" is the decimal representation, with | |
581e13c1 MS |
1629 | the "decimal_digits" actual digits. Print! */ |
1630 | ||
c5aa993b JM |
1631 | for (i = decimal_digits - 1; i >= 0; i--) |
1632 | { | |
1633 | fprintf_filtered (stream, "%1d", digits[i]); | |
1634 | } | |
b8c9b27d | 1635 | xfree (digits); |
c906108c SS |
1636 | } |
1637 | ||
1638 | /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ | |
1639 | ||
6b9acc27 | 1640 | void |
fc1a4b47 | 1641 | print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1642 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1643 | { |
fc1a4b47 | 1644 | const gdb_byte *p; |
c906108c SS |
1645 | |
1646 | /* FIXME: We should be not printing leading zeroes in most cases. */ | |
1647 | ||
bb599908 | 1648 | fputs_filtered ("0x", stream); |
d44e8473 | 1649 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1650 | { |
1651 | for (p = valaddr; | |
1652 | p < valaddr + len; | |
1653 | p++) | |
1654 | { | |
1655 | fprintf_filtered (stream, "%02x", *p); | |
1656 | } | |
1657 | } | |
1658 | else | |
1659 | { | |
1660 | for (p = valaddr + len - 1; | |
1661 | p >= valaddr; | |
1662 | p--) | |
1663 | { | |
1664 | fprintf_filtered (stream, "%02x", *p); | |
1665 | } | |
1666 | } | |
c906108c SS |
1667 | } |
1668 | ||
3e43a32a | 1669 | /* VALADDR points to a char integer of LEN bytes. |
581e13c1 | 1670 | Print it out in appropriate language form on stream. |
6b9acc27 JJ |
1671 | Omit any leading zero chars. */ |
1672 | ||
1673 | void | |
6c7a06a3 TT |
1674 | print_char_chars (struct ui_file *stream, struct type *type, |
1675 | const gdb_byte *valaddr, | |
d44e8473 | 1676 | unsigned len, enum bfd_endian byte_order) |
6b9acc27 | 1677 | { |
fc1a4b47 | 1678 | const gdb_byte *p; |
6b9acc27 | 1679 | |
d44e8473 | 1680 | if (byte_order == BFD_ENDIAN_BIG) |
6b9acc27 JJ |
1681 | { |
1682 | p = valaddr; | |
1683 | while (p < valaddr + len - 1 && *p == 0) | |
1684 | ++p; | |
1685 | ||
1686 | while (p < valaddr + len) | |
1687 | { | |
6c7a06a3 | 1688 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1689 | ++p; |
1690 | } | |
1691 | } | |
1692 | else | |
1693 | { | |
1694 | p = valaddr + len - 1; | |
1695 | while (p > valaddr && *p == 0) | |
1696 | --p; | |
1697 | ||
1698 | while (p >= valaddr) | |
1699 | { | |
6c7a06a3 | 1700 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1701 | --p; |
1702 | } | |
1703 | } | |
1704 | } | |
1705 | ||
132c57b4 TT |
1706 | /* Print function pointer with inferior address ADDRESS onto stdio |
1707 | stream STREAM. */ | |
1708 | ||
1709 | void | |
edf0c1b7 TT |
1710 | print_function_pointer_address (const struct value_print_options *options, |
1711 | struct gdbarch *gdbarch, | |
132c57b4 | 1712 | CORE_ADDR address, |
edf0c1b7 | 1713 | struct ui_file *stream) |
132c57b4 TT |
1714 | { |
1715 | CORE_ADDR func_addr | |
1716 | = gdbarch_convert_from_func_ptr_addr (gdbarch, address, | |
1717 | ¤t_target); | |
1718 | ||
1719 | /* If the function pointer is represented by a description, print | |
1720 | the address of the description. */ | |
edf0c1b7 | 1721 | if (options->addressprint && func_addr != address) |
132c57b4 TT |
1722 | { |
1723 | fputs_filtered ("@", stream); | |
1724 | fputs_filtered (paddress (gdbarch, address), stream); | |
1725 | fputs_filtered (": ", stream); | |
1726 | } | |
edf0c1b7 | 1727 | print_address_demangle (options, gdbarch, func_addr, stream, demangle); |
132c57b4 TT |
1728 | } |
1729 | ||
1730 | ||
79a45b7d | 1731 | /* Print on STREAM using the given OPTIONS the index for the element |
e79af960 JB |
1732 | at INDEX of an array whose index type is INDEX_TYPE. */ |
1733 | ||
1734 | void | |
1735 | maybe_print_array_index (struct type *index_type, LONGEST index, | |
79a45b7d TT |
1736 | struct ui_file *stream, |
1737 | const struct value_print_options *options) | |
e79af960 JB |
1738 | { |
1739 | struct value *index_value; | |
1740 | ||
79a45b7d | 1741 | if (!options->print_array_indexes) |
e79af960 JB |
1742 | return; |
1743 | ||
1744 | index_value = value_from_longest (index_type, index); | |
1745 | ||
79a45b7d TT |
1746 | LA_PRINT_ARRAY_INDEX (index_value, stream, options); |
1747 | } | |
e79af960 | 1748 | |
c906108c | 1749 | /* Called by various <lang>_val_print routines to print elements of an |
c5aa993b | 1750 | array in the form "<elem1>, <elem2>, <elem3>, ...". |
c906108c | 1751 | |
c5aa993b JM |
1752 | (FIXME?) Assumes array element separator is a comma, which is correct |
1753 | for all languages currently handled. | |
1754 | (FIXME?) Some languages have a notation for repeated array elements, | |
581e13c1 | 1755 | perhaps we should try to use that notation when appropriate. */ |
c906108c SS |
1756 | |
1757 | void | |
490f124f PA |
1758 | val_print_array_elements (struct type *type, |
1759 | const gdb_byte *valaddr, int embedded_offset, | |
a2bd3dcd | 1760 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 1761 | int recurse, |
0e03807e | 1762 | const struct value *val, |
79a45b7d | 1763 | const struct value_print_options *options, |
fba45db2 | 1764 | unsigned int i) |
c906108c SS |
1765 | { |
1766 | unsigned int things_printed = 0; | |
1767 | unsigned len; | |
aa715135 | 1768 | struct type *elttype, *index_type, *base_index_type; |
c906108c SS |
1769 | unsigned eltlen; |
1770 | /* Position of the array element we are examining to see | |
1771 | whether it is repeated. */ | |
1772 | unsigned int rep1; | |
1773 | /* Number of repetitions we have detected so far. */ | |
1774 | unsigned int reps; | |
dbc98a8b | 1775 | LONGEST low_bound, high_bound; |
aa715135 | 1776 | LONGEST low_pos, high_pos; |
c5aa993b | 1777 | |
c906108c SS |
1778 | elttype = TYPE_TARGET_TYPE (type); |
1779 | eltlen = TYPE_LENGTH (check_typedef (elttype)); | |
e79af960 | 1780 | index_type = TYPE_INDEX_TYPE (type); |
c906108c | 1781 | |
dbc98a8b | 1782 | if (get_array_bounds (type, &low_bound, &high_bound)) |
75be741b | 1783 | { |
aa715135 JG |
1784 | if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) |
1785 | base_index_type = TYPE_TARGET_TYPE (index_type); | |
1786 | else | |
1787 | base_index_type = index_type; | |
1788 | ||
1789 | /* Non-contiguous enumerations types can by used as index types | |
1790 | in some languages (e.g. Ada). In this case, the array length | |
1791 | shall be computed from the positions of the first and last | |
1792 | literal in the enumeration type, and not from the values | |
1793 | of these literals. */ | |
1794 | if (!discrete_position (base_index_type, low_bound, &low_pos) | |
1795 | || !discrete_position (base_index_type, high_bound, &high_pos)) | |
1796 | { | |
1797 | warning (_("unable to get positions in array, use bounds instead")); | |
1798 | low_pos = low_bound; | |
1799 | high_pos = high_bound; | |
1800 | } | |
1801 | ||
1802 | /* The array length should normally be HIGH_POS - LOW_POS + 1. | |
75be741b | 1803 | But we have to be a little extra careful, because some languages |
aa715135 | 1804 | such as Ada allow LOW_POS to be greater than HIGH_POS for |
75be741b JB |
1805 | empty arrays. In that situation, the array length is just zero, |
1806 | not negative! */ | |
aa715135 | 1807 | if (low_pos > high_pos) |
75be741b JB |
1808 | len = 0; |
1809 | else | |
aa715135 | 1810 | len = high_pos - low_pos + 1; |
75be741b | 1811 | } |
e936309c JB |
1812 | else |
1813 | { | |
dbc98a8b KW |
1814 | warning (_("unable to get bounds of array, assuming null array")); |
1815 | low_bound = 0; | |
1816 | len = 0; | |
168de233 JB |
1817 | } |
1818 | ||
c906108c SS |
1819 | annotate_array_section_begin (i, elttype); |
1820 | ||
79a45b7d | 1821 | for (; i < len && things_printed < options->print_max; i++) |
c906108c SS |
1822 | { |
1823 | if (i != 0) | |
1824 | { | |
2a998fc0 | 1825 | if (options->prettyformat_arrays) |
c906108c SS |
1826 | { |
1827 | fprintf_filtered (stream, ",\n"); | |
1828 | print_spaces_filtered (2 + 2 * recurse, stream); | |
1829 | } | |
1830 | else | |
1831 | { | |
1832 | fprintf_filtered (stream, ", "); | |
1833 | } | |
1834 | } | |
1835 | wrap_here (n_spaces (2 + 2 * recurse)); | |
dbc98a8b | 1836 | maybe_print_array_index (index_type, i + low_bound, |
79a45b7d | 1837 | stream, options); |
c906108c SS |
1838 | |
1839 | rep1 = i + 1; | |
1840 | reps = 1; | |
35bef4fd TT |
1841 | /* Only check for reps if repeat_count_threshold is not set to |
1842 | UINT_MAX (unlimited). */ | |
1843 | if (options->repeat_count_threshold < UINT_MAX) | |
c906108c | 1844 | { |
35bef4fd | 1845 | while (rep1 < len |
9a0dc9e3 PA |
1846 | && value_contents_eq (val, |
1847 | embedded_offset + i * eltlen, | |
1848 | val, | |
1849 | (embedded_offset | |
1850 | + rep1 * eltlen), | |
1851 | eltlen)) | |
35bef4fd TT |
1852 | { |
1853 | ++reps; | |
1854 | ++rep1; | |
1855 | } | |
c906108c SS |
1856 | } |
1857 | ||
79a45b7d | 1858 | if (reps > options->repeat_count_threshold) |
c906108c | 1859 | { |
490f124f PA |
1860 | val_print (elttype, valaddr, embedded_offset + i * eltlen, |
1861 | address, stream, recurse + 1, val, options, | |
1862 | current_language); | |
c906108c SS |
1863 | annotate_elt_rep (reps); |
1864 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
1865 | annotate_elt_rep_end (); | |
1866 | ||
1867 | i = rep1 - 1; | |
79a45b7d | 1868 | things_printed += options->repeat_count_threshold; |
c906108c SS |
1869 | } |
1870 | else | |
1871 | { | |
490f124f PA |
1872 | val_print (elttype, valaddr, embedded_offset + i * eltlen, |
1873 | address, | |
0e03807e | 1874 | stream, recurse + 1, val, options, current_language); |
c906108c SS |
1875 | annotate_elt (); |
1876 | things_printed++; | |
1877 | } | |
1878 | } | |
1879 | annotate_array_section_end (); | |
1880 | if (i < len) | |
1881 | { | |
1882 | fprintf_filtered (stream, "..."); | |
1883 | } | |
1884 | } | |
1885 | ||
917317f4 JM |
1886 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1887 | results in GDB's memory at MYADDR. Returns a count of the bytes | |
9b409511 | 1888 | actually read, and optionally a target_xfer_status value in the |
578d3588 | 1889 | location pointed to by ERRPTR if ERRPTR is non-null. */ |
917317f4 JM |
1890 | |
1891 | /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this | |
1892 | function be eliminated. */ | |
1893 | ||
1894 | static int | |
3e43a32a | 1895 | partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 1896 | int len, int *errptr) |
917317f4 | 1897 | { |
581e13c1 MS |
1898 | int nread; /* Number of bytes actually read. */ |
1899 | int errcode; /* Error from last read. */ | |
917317f4 | 1900 | |
581e13c1 | 1901 | /* First try a complete read. */ |
917317f4 JM |
1902 | errcode = target_read_memory (memaddr, myaddr, len); |
1903 | if (errcode == 0) | |
1904 | { | |
581e13c1 | 1905 | /* Got it all. */ |
917317f4 JM |
1906 | nread = len; |
1907 | } | |
1908 | else | |
1909 | { | |
581e13c1 | 1910 | /* Loop, reading one byte at a time until we get as much as we can. */ |
917317f4 JM |
1911 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) |
1912 | { | |
1913 | errcode = target_read_memory (memaddr++, myaddr++, 1); | |
1914 | } | |
581e13c1 | 1915 | /* If an error, the last read was unsuccessful, so adjust count. */ |
917317f4 JM |
1916 | if (errcode != 0) |
1917 | { | |
1918 | nread--; | |
1919 | } | |
1920 | } | |
578d3588 | 1921 | if (errptr != NULL) |
917317f4 | 1922 | { |
578d3588 | 1923 | *errptr = errcode; |
917317f4 JM |
1924 | } |
1925 | return (nread); | |
1926 | } | |
1927 | ||
ae6a3a4c TJB |
1928 | /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes |
1929 | each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly | |
1930 | allocated buffer containing the string, which the caller is responsible to | |
1931 | free, and BYTES_READ will be set to the number of bytes read. Returns 0 on | |
9b409511 | 1932 | success, or a target_xfer_status on failure. |
ae6a3a4c | 1933 | |
f380848e SA |
1934 | If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters |
1935 | (including eventual NULs in the middle or end of the string). | |
1936 | ||
1937 | If LEN is -1, stops at the first null character (not necessarily | |
1938 | the first null byte) up to a maximum of FETCHLIMIT characters. Set | |
1939 | FETCHLIMIT to UINT_MAX to read as many characters as possible from | |
1940 | the string. | |
ae6a3a4c TJB |
1941 | |
1942 | Unless an exception is thrown, BUFFER will always be allocated, even on | |
1943 | failure. In this case, some characters might have been read before the | |
1944 | failure happened. Check BYTES_READ to recognize this situation. | |
1945 | ||
1946 | Note: There was a FIXME asking to make this code use target_read_string, | |
1947 | but this function is more general (can read past null characters, up to | |
581e13c1 | 1948 | given LEN). Besides, it is used much more often than target_read_string |
ae6a3a4c TJB |
1949 | so it is more tested. Perhaps callers of target_read_string should use |
1950 | this function instead? */ | |
c906108c SS |
1951 | |
1952 | int | |
ae6a3a4c | 1953 | read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit, |
e17a4113 | 1954 | enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read) |
c906108c | 1955 | { |
ae6a3a4c TJB |
1956 | int errcode; /* Errno returned from bad reads. */ |
1957 | unsigned int nfetch; /* Chars to fetch / chars fetched. */ | |
3e43a32a MS |
1958 | gdb_byte *bufptr; /* Pointer to next available byte in |
1959 | buffer. */ | |
ae6a3a4c TJB |
1960 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ |
1961 | ||
ae6a3a4c TJB |
1962 | /* Loop until we either have all the characters, or we encounter |
1963 | some error, such as bumping into the end of the address space. */ | |
c906108c | 1964 | |
b5096abe PM |
1965 | *buffer = NULL; |
1966 | ||
1967 | old_chain = make_cleanup (free_current_contents, buffer); | |
c906108c SS |
1968 | |
1969 | if (len > 0) | |
1970 | { | |
88db67ef YQ |
1971 | /* We want fetchlimit chars, so we might as well read them all in |
1972 | one operation. */ | |
f380848e SA |
1973 | unsigned int fetchlen = min (len, fetchlimit); |
1974 | ||
1975 | *buffer = (gdb_byte *) xmalloc (fetchlen * width); | |
ae6a3a4c | 1976 | bufptr = *buffer; |
c906108c | 1977 | |
f380848e | 1978 | nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode) |
c906108c SS |
1979 | / width; |
1980 | addr += nfetch * width; | |
1981 | bufptr += nfetch * width; | |
1982 | } | |
1983 | else if (len == -1) | |
1984 | { | |
1985 | unsigned long bufsize = 0; | |
88db67ef YQ |
1986 | unsigned int chunksize; /* Size of each fetch, in chars. */ |
1987 | int found_nul; /* Non-zero if we found the nul char. */ | |
1988 | gdb_byte *limit; /* First location past end of fetch buffer. */ | |
1989 | ||
1990 | found_nul = 0; | |
1991 | /* We are looking for a NUL terminator to end the fetching, so we | |
1992 | might as well read in blocks that are large enough to be efficient, | |
1993 | but not so large as to be slow if fetchlimit happens to be large. | |
1994 | So we choose the minimum of 8 and fetchlimit. We used to use 200 | |
1995 | instead of 8 but 200 is way too big for remote debugging over a | |
1996 | serial line. */ | |
1997 | chunksize = min (8, fetchlimit); | |
ae6a3a4c | 1998 | |
c906108c SS |
1999 | do |
2000 | { | |
2001 | QUIT; | |
2002 | nfetch = min (chunksize, fetchlimit - bufsize); | |
2003 | ||
ae6a3a4c TJB |
2004 | if (*buffer == NULL) |
2005 | *buffer = (gdb_byte *) xmalloc (nfetch * width); | |
c906108c | 2006 | else |
b5096abe PM |
2007 | *buffer = (gdb_byte *) xrealloc (*buffer, |
2008 | (nfetch + bufsize) * width); | |
c906108c | 2009 | |
ae6a3a4c | 2010 | bufptr = *buffer + bufsize * width; |
c906108c SS |
2011 | bufsize += nfetch; |
2012 | ||
ae6a3a4c | 2013 | /* Read as much as we can. */ |
917317f4 | 2014 | nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode) |
ae6a3a4c | 2015 | / width; |
c906108c | 2016 | |
ae6a3a4c | 2017 | /* Scan this chunk for the null character that terminates the string |
c906108c SS |
2018 | to print. If found, we don't need to fetch any more. Note |
2019 | that bufptr is explicitly left pointing at the next character | |
ae6a3a4c TJB |
2020 | after the null character, or at the next character after the end |
2021 | of the buffer. */ | |
c906108c SS |
2022 | |
2023 | limit = bufptr + nfetch * width; | |
2024 | while (bufptr < limit) | |
2025 | { | |
2026 | unsigned long c; | |
2027 | ||
e17a4113 | 2028 | c = extract_unsigned_integer (bufptr, width, byte_order); |
c906108c SS |
2029 | addr += width; |
2030 | bufptr += width; | |
2031 | if (c == 0) | |
2032 | { | |
2033 | /* We don't care about any error which happened after | |
ae6a3a4c | 2034 | the NUL terminator. */ |
c906108c SS |
2035 | errcode = 0; |
2036 | found_nul = 1; | |
2037 | break; | |
2038 | } | |
2039 | } | |
2040 | } | |
c5aa993b | 2041 | while (errcode == 0 /* no error */ |
ae6a3a4c TJB |
2042 | && bufptr - *buffer < fetchlimit * width /* no overrun */ |
2043 | && !found_nul); /* haven't found NUL yet */ | |
c906108c SS |
2044 | } |
2045 | else | |
ae6a3a4c TJB |
2046 | { /* Length of string is really 0! */ |
2047 | /* We always allocate *buffer. */ | |
2048 | *buffer = bufptr = xmalloc (1); | |
c906108c SS |
2049 | errcode = 0; |
2050 | } | |
2051 | ||
2052 | /* bufptr and addr now point immediately beyond the last byte which we | |
2053 | consider part of the string (including a '\0' which ends the string). */ | |
ae6a3a4c TJB |
2054 | *bytes_read = bufptr - *buffer; |
2055 | ||
2056 | QUIT; | |
2057 | ||
2058 | discard_cleanups (old_chain); | |
2059 | ||
2060 | return errcode; | |
2061 | } | |
2062 | ||
3b2b8fea TT |
2063 | /* Return true if print_wchar can display W without resorting to a |
2064 | numeric escape, false otherwise. */ | |
2065 | ||
2066 | static int | |
2067 | wchar_printable (gdb_wchar_t w) | |
2068 | { | |
2069 | return (gdb_iswprint (w) | |
2070 | || w == LCST ('\a') || w == LCST ('\b') | |
2071 | || w == LCST ('\f') || w == LCST ('\n') | |
2072 | || w == LCST ('\r') || w == LCST ('\t') | |
2073 | || w == LCST ('\v')); | |
2074 | } | |
2075 | ||
2076 | /* A helper function that converts the contents of STRING to wide | |
2077 | characters and then appends them to OUTPUT. */ | |
2078 | ||
2079 | static void | |
2080 | append_string_as_wide (const char *string, | |
2081 | struct obstack *output) | |
2082 | { | |
2083 | for (; *string; ++string) | |
2084 | { | |
2085 | gdb_wchar_t w = gdb_btowc (*string); | |
2086 | obstack_grow (output, &w, sizeof (gdb_wchar_t)); | |
2087 | } | |
2088 | } | |
2089 | ||
2090 | /* Print a wide character W to OUTPUT. ORIG is a pointer to the | |
2091 | original (target) bytes representing the character, ORIG_LEN is the | |
2092 | number of valid bytes. WIDTH is the number of bytes in a base | |
2093 | characters of the type. OUTPUT is an obstack to which wide | |
2094 | characters are emitted. QUOTER is a (narrow) character indicating | |
2095 | the style of quotes surrounding the character to be printed. | |
2096 | NEED_ESCAPE is an in/out flag which is used to track numeric | |
2097 | escapes across calls. */ | |
2098 | ||
2099 | static void | |
2100 | print_wchar (gdb_wint_t w, const gdb_byte *orig, | |
2101 | int orig_len, int width, | |
2102 | enum bfd_endian byte_order, | |
2103 | struct obstack *output, | |
2104 | int quoter, int *need_escapep) | |
2105 | { | |
2106 | int need_escape = *need_escapep; | |
2107 | ||
2108 | *need_escapep = 0; | |
3b2b8fea | 2109 | |
95c64f92 YQ |
2110 | /* iswprint implementation on Windows returns 1 for tab character. |
2111 | In order to avoid different printout on this host, we explicitly | |
2112 | use wchar_printable function. */ | |
2113 | switch (w) | |
3b2b8fea | 2114 | { |
95c64f92 YQ |
2115 | case LCST ('\a'): |
2116 | obstack_grow_wstr (output, LCST ("\\a")); | |
2117 | break; | |
2118 | case LCST ('\b'): | |
2119 | obstack_grow_wstr (output, LCST ("\\b")); | |
2120 | break; | |
2121 | case LCST ('\f'): | |
2122 | obstack_grow_wstr (output, LCST ("\\f")); | |
2123 | break; | |
2124 | case LCST ('\n'): | |
2125 | obstack_grow_wstr (output, LCST ("\\n")); | |
2126 | break; | |
2127 | case LCST ('\r'): | |
2128 | obstack_grow_wstr (output, LCST ("\\r")); | |
2129 | break; | |
2130 | case LCST ('\t'): | |
2131 | obstack_grow_wstr (output, LCST ("\\t")); | |
2132 | break; | |
2133 | case LCST ('\v'): | |
2134 | obstack_grow_wstr (output, LCST ("\\v")); | |
2135 | break; | |
2136 | default: | |
3b2b8fea | 2137 | { |
95c64f92 YQ |
2138 | if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w) |
2139 | && w != LCST ('8') | |
2140 | && w != LCST ('9')))) | |
2141 | { | |
2142 | gdb_wchar_t wchar = w; | |
3b2b8fea | 2143 | |
95c64f92 YQ |
2144 | if (w == gdb_btowc (quoter) || w == LCST ('\\')) |
2145 | obstack_grow_wstr (output, LCST ("\\")); | |
2146 | obstack_grow (output, &wchar, sizeof (gdb_wchar_t)); | |
2147 | } | |
2148 | else | |
2149 | { | |
2150 | int i; | |
3b2b8fea | 2151 | |
95c64f92 YQ |
2152 | for (i = 0; i + width <= orig_len; i += width) |
2153 | { | |
2154 | char octal[30]; | |
2155 | ULONGEST value; | |
2156 | ||
2157 | value = extract_unsigned_integer (&orig[i], width, | |
3b2b8fea | 2158 | byte_order); |
95c64f92 YQ |
2159 | /* If the value fits in 3 octal digits, print it that |
2160 | way. Otherwise, print it as a hex escape. */ | |
2161 | if (value <= 0777) | |
2162 | xsnprintf (octal, sizeof (octal), "\\%.3o", | |
2163 | (int) (value & 0777)); | |
2164 | else | |
2165 | xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value); | |
2166 | append_string_as_wide (octal, output); | |
2167 | } | |
2168 | /* If we somehow have extra bytes, print them now. */ | |
2169 | while (i < orig_len) | |
2170 | { | |
2171 | char octal[5]; | |
2172 | ||
2173 | xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff); | |
2174 | append_string_as_wide (octal, output); | |
2175 | ++i; | |
2176 | } | |
2177 | ||
2178 | *need_escapep = 1; | |
2179 | } | |
3b2b8fea TT |
2180 | break; |
2181 | } | |
2182 | } | |
2183 | } | |
2184 | ||
2185 | /* Print the character C on STREAM as part of the contents of a | |
2186 | literal string whose delimiter is QUOTER. ENCODING names the | |
2187 | encoding of C. */ | |
2188 | ||
2189 | void | |
2190 | generic_emit_char (int c, struct type *type, struct ui_file *stream, | |
2191 | int quoter, const char *encoding) | |
2192 | { | |
2193 | enum bfd_endian byte_order | |
2194 | = gdbarch_byte_order (get_type_arch (type)); | |
2195 | struct obstack wchar_buf, output; | |
2196 | struct cleanup *cleanups; | |
2197 | gdb_byte *buf; | |
2198 | struct wchar_iterator *iter; | |
2199 | int need_escape = 0; | |
2200 | ||
2201 | buf = alloca (TYPE_LENGTH (type)); | |
2202 | pack_long (buf, type, c); | |
2203 | ||
2204 | iter = make_wchar_iterator (buf, TYPE_LENGTH (type), | |
2205 | encoding, TYPE_LENGTH (type)); | |
2206 | cleanups = make_cleanup_wchar_iterator (iter); | |
2207 | ||
2208 | /* This holds the printable form of the wchar_t data. */ | |
2209 | obstack_init (&wchar_buf); | |
2210 | make_cleanup_obstack_free (&wchar_buf); | |
2211 | ||
2212 | while (1) | |
2213 | { | |
2214 | int num_chars; | |
2215 | gdb_wchar_t *chars; | |
2216 | const gdb_byte *buf; | |
2217 | size_t buflen; | |
2218 | int print_escape = 1; | |
2219 | enum wchar_iterate_result result; | |
2220 | ||
2221 | num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen); | |
2222 | if (num_chars < 0) | |
2223 | break; | |
2224 | if (num_chars > 0) | |
2225 | { | |
2226 | /* If all characters are printable, print them. Otherwise, | |
2227 | we're going to have to print an escape sequence. We | |
2228 | check all characters because we want to print the target | |
2229 | bytes in the escape sequence, and we don't know character | |
2230 | boundaries there. */ | |
2231 | int i; | |
2232 | ||
2233 | print_escape = 0; | |
2234 | for (i = 0; i < num_chars; ++i) | |
2235 | if (!wchar_printable (chars[i])) | |
2236 | { | |
2237 | print_escape = 1; | |
2238 | break; | |
2239 | } | |
2240 | ||
2241 | if (!print_escape) | |
2242 | { | |
2243 | for (i = 0; i < num_chars; ++i) | |
2244 | print_wchar (chars[i], buf, buflen, | |
2245 | TYPE_LENGTH (type), byte_order, | |
2246 | &wchar_buf, quoter, &need_escape); | |
2247 | } | |
2248 | } | |
2249 | ||
2250 | /* This handles the NUM_CHARS == 0 case as well. */ | |
2251 | if (print_escape) | |
2252 | print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type), | |
2253 | byte_order, &wchar_buf, quoter, &need_escape); | |
2254 | } | |
2255 | ||
2256 | /* The output in the host encoding. */ | |
2257 | obstack_init (&output); | |
2258 | make_cleanup_obstack_free (&output); | |
2259 | ||
2260 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2261 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2262 | obstack_object_size (&wchar_buf), |
fff10684 | 2263 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2264 | obstack_1grow (&output, '\0'); |
2265 | ||
2266 | fputs_filtered (obstack_base (&output), stream); | |
2267 | ||
2268 | do_cleanups (cleanups); | |
2269 | } | |
2270 | ||
0d63ecda KS |
2271 | /* Return the repeat count of the next character/byte in ITER, |
2272 | storing the result in VEC. */ | |
2273 | ||
2274 | static int | |
2275 | count_next_character (struct wchar_iterator *iter, | |
2276 | VEC (converted_character_d) **vec) | |
2277 | { | |
2278 | struct converted_character *current; | |
2279 | ||
2280 | if (VEC_empty (converted_character_d, *vec)) | |
2281 | { | |
2282 | struct converted_character tmp; | |
2283 | gdb_wchar_t *chars; | |
2284 | ||
2285 | tmp.num_chars | |
2286 | = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen); | |
2287 | if (tmp.num_chars > 0) | |
2288 | { | |
2289 | gdb_assert (tmp.num_chars < MAX_WCHARS); | |
2290 | memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t)); | |
2291 | } | |
2292 | VEC_safe_push (converted_character_d, *vec, &tmp); | |
2293 | } | |
2294 | ||
2295 | current = VEC_last (converted_character_d, *vec); | |
2296 | ||
2297 | /* Count repeated characters or bytes. */ | |
2298 | current->repeat_count = 1; | |
2299 | if (current->num_chars == -1) | |
2300 | { | |
2301 | /* EOF */ | |
2302 | return -1; | |
2303 | } | |
2304 | else | |
2305 | { | |
2306 | gdb_wchar_t *chars; | |
2307 | struct converted_character d; | |
2308 | int repeat; | |
2309 | ||
2310 | d.repeat_count = 0; | |
2311 | ||
2312 | while (1) | |
2313 | { | |
2314 | /* Get the next character. */ | |
2315 | d.num_chars | |
2316 | = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen); | |
2317 | ||
2318 | /* If a character was successfully converted, save the character | |
2319 | into the converted character. */ | |
2320 | if (d.num_chars > 0) | |
2321 | { | |
2322 | gdb_assert (d.num_chars < MAX_WCHARS); | |
2323 | memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars)); | |
2324 | } | |
2325 | ||
2326 | /* Determine if the current character is the same as this | |
2327 | new character. */ | |
2328 | if (d.num_chars == current->num_chars && d.result == current->result) | |
2329 | { | |
2330 | /* There are two cases to consider: | |
2331 | ||
2332 | 1) Equality of converted character (num_chars > 0) | |
2333 | 2) Equality of non-converted character (num_chars == 0) */ | |
2334 | if ((current->num_chars > 0 | |
2335 | && memcmp (current->chars, d.chars, | |
2336 | WCHAR_BUFLEN (current->num_chars)) == 0) | |
2337 | || (current->num_chars == 0 | |
2338 | && current->buflen == d.buflen | |
2339 | && memcmp (current->buf, d.buf, current->buflen) == 0)) | |
2340 | ++current->repeat_count; | |
2341 | else | |
2342 | break; | |
2343 | } | |
2344 | else | |
2345 | break; | |
2346 | } | |
2347 | ||
2348 | /* Push this next converted character onto the result vector. */ | |
2349 | repeat = current->repeat_count; | |
2350 | VEC_safe_push (converted_character_d, *vec, &d); | |
2351 | return repeat; | |
2352 | } | |
2353 | } | |
2354 | ||
2355 | /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote | |
2356 | character to use with string output. WIDTH is the size of the output | |
2357 | character type. BYTE_ORDER is the the target byte order. OPTIONS | |
2358 | is the user's print options. */ | |
2359 | ||
2360 | static void | |
2361 | print_converted_chars_to_obstack (struct obstack *obstack, | |
2362 | VEC (converted_character_d) *chars, | |
2363 | int quote_char, int width, | |
2364 | enum bfd_endian byte_order, | |
2365 | const struct value_print_options *options) | |
2366 | { | |
2367 | unsigned int idx; | |
2368 | struct converted_character *elem; | |
2369 | enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last; | |
2370 | gdb_wchar_t wide_quote_char = gdb_btowc (quote_char); | |
2371 | int need_escape = 0; | |
2372 | ||
2373 | /* Set the start state. */ | |
2374 | idx = 0; | |
2375 | last = state = START; | |
2376 | elem = NULL; | |
2377 | ||
2378 | while (1) | |
2379 | { | |
2380 | switch (state) | |
2381 | { | |
2382 | case START: | |
2383 | /* Nothing to do. */ | |
2384 | break; | |
2385 | ||
2386 | case SINGLE: | |
2387 | { | |
2388 | int j; | |
2389 | ||
2390 | /* We are outputting a single character | |
2391 | (< options->repeat_count_threshold). */ | |
2392 | ||
2393 | if (last != SINGLE) | |
2394 | { | |
2395 | /* We were outputting some other type of content, so we | |
2396 | must output and a comma and a quote. */ | |
2397 | if (last != START) | |
2398 | obstack_grow_wstr (obstack, LCST (", ")); | |
0d63ecda KS |
2399 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2400 | } | |
2401 | /* Output the character. */ | |
2402 | for (j = 0; j < elem->repeat_count; ++j) | |
2403 | { | |
2404 | if (elem->result == wchar_iterate_ok) | |
2405 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2406 | byte_order, obstack, quote_char, &need_escape); | |
2407 | else | |
2408 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2409 | byte_order, obstack, quote_char, &need_escape); | |
2410 | } | |
2411 | } | |
2412 | break; | |
2413 | ||
2414 | case REPEAT: | |
2415 | { | |
2416 | int j; | |
2417 | char *s; | |
2418 | ||
2419 | /* We are outputting a character with a repeat count | |
2420 | greater than options->repeat_count_threshold. */ | |
2421 | ||
2422 | if (last == SINGLE) | |
2423 | { | |
2424 | /* We were outputting a single string. Terminate the | |
2425 | string. */ | |
0d63ecda KS |
2426 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2427 | } | |
2428 | if (last != START) | |
2429 | obstack_grow_wstr (obstack, LCST (", ")); | |
2430 | ||
2431 | /* Output the character and repeat string. */ | |
2432 | obstack_grow_wstr (obstack, LCST ("'")); | |
2433 | if (elem->result == wchar_iterate_ok) | |
2434 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2435 | byte_order, obstack, quote_char, &need_escape); | |
2436 | else | |
2437 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2438 | byte_order, obstack, quote_char, &need_escape); | |
2439 | obstack_grow_wstr (obstack, LCST ("'")); | |
2440 | s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count); | |
2441 | for (j = 0; s[j]; ++j) | |
2442 | { | |
2443 | gdb_wchar_t w = gdb_btowc (s[j]); | |
2444 | obstack_grow (obstack, &w, sizeof (gdb_wchar_t)); | |
2445 | } | |
2446 | xfree (s); | |
2447 | } | |
2448 | break; | |
2449 | ||
2450 | case INCOMPLETE: | |
2451 | /* We are outputting an incomplete sequence. */ | |
2452 | if (last == SINGLE) | |
2453 | { | |
2454 | /* If we were outputting a string of SINGLE characters, | |
2455 | terminate the quote. */ | |
0d63ecda KS |
2456 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2457 | } | |
2458 | if (last != START) | |
2459 | obstack_grow_wstr (obstack, LCST (", ")); | |
2460 | ||
2461 | /* Output the incomplete sequence string. */ | |
2462 | obstack_grow_wstr (obstack, LCST ("<incomplete sequence ")); | |
2463 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order, | |
2464 | obstack, 0, &need_escape); | |
2465 | obstack_grow_wstr (obstack, LCST (">")); | |
2466 | ||
2467 | /* We do not attempt to outupt anything after this. */ | |
2468 | state = FINISH; | |
2469 | break; | |
2470 | ||
2471 | case FINISH: | |
2472 | /* All done. If we were outputting a string of SINGLE | |
2473 | characters, the string must be terminated. Otherwise, | |
2474 | REPEAT and INCOMPLETE are always left properly terminated. */ | |
2475 | if (last == SINGLE) | |
e93a8774 | 2476 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
0d63ecda KS |
2477 | |
2478 | return; | |
2479 | } | |
2480 | ||
2481 | /* Get the next element and state. */ | |
2482 | last = state; | |
2483 | if (state != FINISH) | |
2484 | { | |
2485 | elem = VEC_index (converted_character_d, chars, idx++); | |
2486 | switch (elem->result) | |
2487 | { | |
2488 | case wchar_iterate_ok: | |
2489 | case wchar_iterate_invalid: | |
2490 | if (elem->repeat_count > options->repeat_count_threshold) | |
2491 | state = REPEAT; | |
2492 | else | |
2493 | state = SINGLE; | |
2494 | break; | |
2495 | ||
2496 | case wchar_iterate_incomplete: | |
2497 | state = INCOMPLETE; | |
2498 | break; | |
2499 | ||
2500 | case wchar_iterate_eof: | |
2501 | state = FINISH; | |
2502 | break; | |
2503 | } | |
2504 | } | |
2505 | } | |
2506 | } | |
2507 | ||
3b2b8fea TT |
2508 | /* Print the character string STRING, printing at most LENGTH |
2509 | characters. LENGTH is -1 if the string is nul terminated. TYPE is | |
2510 | the type of each character. OPTIONS holds the printing options; | |
2511 | printing stops early if the number hits print_max; repeat counts | |
2512 | are printed as appropriate. Print ellipses at the end if we had to | |
2513 | stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
2514 | QUOTE_CHAR is the character to print at each end of the string. If | |
2515 | C_STYLE_TERMINATOR is true, and the last character is 0, then it is | |
2516 | omitted. */ | |
2517 | ||
2518 | void | |
2519 | generic_printstr (struct ui_file *stream, struct type *type, | |
2520 | const gdb_byte *string, unsigned int length, | |
2521 | const char *encoding, int force_ellipses, | |
2522 | int quote_char, int c_style_terminator, | |
2523 | const struct value_print_options *options) | |
2524 | { | |
2525 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); | |
2526 | unsigned int i; | |
3b2b8fea TT |
2527 | int width = TYPE_LENGTH (type); |
2528 | struct obstack wchar_buf, output; | |
2529 | struct cleanup *cleanup; | |
2530 | struct wchar_iterator *iter; | |
2531 | int finished = 0; | |
0d63ecda KS |
2532 | struct converted_character *last; |
2533 | VEC (converted_character_d) *converted_chars; | |
3b2b8fea TT |
2534 | |
2535 | if (length == -1) | |
2536 | { | |
2537 | unsigned long current_char = 1; | |
2538 | ||
2539 | for (i = 0; current_char; ++i) | |
2540 | { | |
2541 | QUIT; | |
2542 | current_char = extract_unsigned_integer (string + i * width, | |
2543 | width, byte_order); | |
2544 | } | |
2545 | length = i; | |
2546 | } | |
2547 | ||
2548 | /* If the string was not truncated due to `set print elements', and | |
2549 | the last byte of it is a null, we don't print that, in | |
2550 | traditional C style. */ | |
2551 | if (c_style_terminator | |
2552 | && !force_ellipses | |
2553 | && length > 0 | |
2554 | && (extract_unsigned_integer (string + (length - 1) * width, | |
2555 | width, byte_order) == 0)) | |
2556 | length--; | |
2557 | ||
2558 | if (length == 0) | |
2559 | { | |
2560 | fputs_filtered ("\"\"", stream); | |
2561 | return; | |
2562 | } | |
2563 | ||
2564 | /* Arrange to iterate over the characters, in wchar_t form. */ | |
2565 | iter = make_wchar_iterator (string, length * width, encoding, width); | |
2566 | cleanup = make_cleanup_wchar_iterator (iter); | |
0d63ecda KS |
2567 | converted_chars = NULL; |
2568 | make_cleanup (VEC_cleanup (converted_character_d), &converted_chars); | |
3b2b8fea | 2569 | |
0d63ecda KS |
2570 | /* Convert characters until the string is over or the maximum |
2571 | number of printed characters has been reached. */ | |
2572 | i = 0; | |
2573 | while (i < options->print_max) | |
3b2b8fea | 2574 | { |
0d63ecda | 2575 | int r; |
3b2b8fea TT |
2576 | |
2577 | QUIT; | |
2578 | ||
0d63ecda KS |
2579 | /* Grab the next character and repeat count. */ |
2580 | r = count_next_character (iter, &converted_chars); | |
3b2b8fea | 2581 | |
0d63ecda KS |
2582 | /* If less than zero, the end of the input string was reached. */ |
2583 | if (r < 0) | |
2584 | break; | |
3b2b8fea | 2585 | |
0d63ecda KS |
2586 | /* Otherwise, add the count to the total print count and get |
2587 | the next character. */ | |
2588 | i += r; | |
2589 | } | |
3b2b8fea | 2590 | |
0d63ecda KS |
2591 | /* Get the last element and determine if the entire string was |
2592 | processed. */ | |
2593 | last = VEC_last (converted_character_d, converted_chars); | |
2594 | finished = (last->result == wchar_iterate_eof); | |
3b2b8fea | 2595 | |
0d63ecda KS |
2596 | /* Ensure that CONVERTED_CHARS is terminated. */ |
2597 | last->result = wchar_iterate_eof; | |
3b2b8fea | 2598 | |
0d63ecda KS |
2599 | /* WCHAR_BUF is the obstack we use to represent the string in |
2600 | wchar_t form. */ | |
2601 | obstack_init (&wchar_buf); | |
2602 | make_cleanup_obstack_free (&wchar_buf); | |
3b2b8fea | 2603 | |
0d63ecda KS |
2604 | /* Print the output string to the obstack. */ |
2605 | print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char, | |
2606 | width, byte_order, options); | |
3b2b8fea TT |
2607 | |
2608 | if (force_ellipses || !finished) | |
2609 | obstack_grow_wstr (&wchar_buf, LCST ("...")); | |
2610 | ||
2611 | /* OUTPUT is where we collect `char's for printing. */ | |
2612 | obstack_init (&output); | |
2613 | make_cleanup_obstack_free (&output); | |
2614 | ||
2615 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2616 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2617 | obstack_object_size (&wchar_buf), |
fff10684 | 2618 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2619 | obstack_1grow (&output, '\0'); |
2620 | ||
2621 | fputs_filtered (obstack_base (&output), stream); | |
2622 | ||
2623 | do_cleanups (cleanup); | |
2624 | } | |
2625 | ||
ae6a3a4c TJB |
2626 | /* Print a string from the inferior, starting at ADDR and printing up to LEN |
2627 | characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing | |
2628 | stops at the first null byte, otherwise printing proceeds (including null | |
2629 | bytes) until either print_max or LEN characters have been printed, | |
09ca9e2e TT |
2630 | whichever is smaller. ENCODING is the name of the string's |
2631 | encoding. It can be NULL, in which case the target encoding is | |
2632 | assumed. */ | |
ae6a3a4c TJB |
2633 | |
2634 | int | |
09ca9e2e TT |
2635 | val_print_string (struct type *elttype, const char *encoding, |
2636 | CORE_ADDR addr, int len, | |
6c7a06a3 | 2637 | struct ui_file *stream, |
ae6a3a4c TJB |
2638 | const struct value_print_options *options) |
2639 | { | |
2640 | int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ | |
2641 | int errcode; /* Errno returned from bad reads. */ | |
581e13c1 | 2642 | int found_nul; /* Non-zero if we found the nul char. */ |
ae6a3a4c TJB |
2643 | unsigned int fetchlimit; /* Maximum number of chars to print. */ |
2644 | int bytes_read; | |
2645 | gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */ | |
2646 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ | |
5af949e3 | 2647 | struct gdbarch *gdbarch = get_type_arch (elttype); |
e17a4113 | 2648 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
6c7a06a3 | 2649 | int width = TYPE_LENGTH (elttype); |
ae6a3a4c TJB |
2650 | |
2651 | /* First we need to figure out the limit on the number of characters we are | |
2652 | going to attempt to fetch and print. This is actually pretty simple. If | |
2653 | LEN >= zero, then the limit is the minimum of LEN and print_max. If | |
2654 | LEN is -1, then the limit is print_max. This is true regardless of | |
2655 | whether print_max is zero, UINT_MAX (unlimited), or something in between, | |
2656 | because finding the null byte (or available memory) is what actually | |
2657 | limits the fetch. */ | |
2658 | ||
3e43a32a MS |
2659 | fetchlimit = (len == -1 ? options->print_max : min (len, |
2660 | options->print_max)); | |
ae6a3a4c | 2661 | |
e17a4113 UW |
2662 | errcode = read_string (addr, len, width, fetchlimit, byte_order, |
2663 | &buffer, &bytes_read); | |
ae6a3a4c TJB |
2664 | old_chain = make_cleanup (xfree, buffer); |
2665 | ||
2666 | addr += bytes_read; | |
c906108c | 2667 | |
3e43a32a MS |
2668 | /* We now have either successfully filled the buffer to fetchlimit, |
2669 | or terminated early due to an error or finding a null char when | |
2670 | LEN is -1. */ | |
ae6a3a4c TJB |
2671 | |
2672 | /* Determine found_nul by looking at the last character read. */ | |
6694c411 JK |
2673 | found_nul = 0; |
2674 | if (bytes_read >= width) | |
2675 | found_nul = extract_unsigned_integer (buffer + bytes_read - width, width, | |
2676 | byte_order) == 0; | |
c906108c SS |
2677 | if (len == -1 && !found_nul) |
2678 | { | |
777ea8f1 | 2679 | gdb_byte *peekbuf; |
c906108c | 2680 | |
ae6a3a4c | 2681 | /* We didn't find a NUL terminator we were looking for. Attempt |
c5aa993b JM |
2682 | to peek at the next character. If not successful, or it is not |
2683 | a null byte, then force ellipsis to be printed. */ | |
c906108c | 2684 | |
777ea8f1 | 2685 | peekbuf = (gdb_byte *) alloca (width); |
c906108c SS |
2686 | |
2687 | if (target_read_memory (addr, peekbuf, width) == 0 | |
e17a4113 | 2688 | && extract_unsigned_integer (peekbuf, width, byte_order) != 0) |
c906108c SS |
2689 | force_ellipsis = 1; |
2690 | } | |
ae6a3a4c | 2691 | else if ((len >= 0 && errcode != 0) || (len > bytes_read / width)) |
c906108c SS |
2692 | { |
2693 | /* Getting an error when we have a requested length, or fetching less | |
c5aa993b | 2694 | than the number of characters actually requested, always make us |
ae6a3a4c | 2695 | print ellipsis. */ |
c906108c SS |
2696 | force_ellipsis = 1; |
2697 | } | |
2698 | ||
c906108c SS |
2699 | /* If we get an error before fetching anything, don't print a string. |
2700 | But if we fetch something and then get an error, print the string | |
2701 | and then the error message. */ | |
ae6a3a4c | 2702 | if (errcode == 0 || bytes_read > 0) |
c906108c | 2703 | { |
be759fcf | 2704 | LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width, |
3a772aa4 | 2705 | encoding, force_ellipsis, options); |
c906108c SS |
2706 | } |
2707 | ||
2708 | if (errcode != 0) | |
2709 | { | |
578d3588 PA |
2710 | char *str; |
2711 | ||
2712 | str = memory_error_message (errcode, gdbarch, addr); | |
2713 | make_cleanup (xfree, str); | |
2714 | ||
2715 | fprintf_filtered (stream, "<error: "); | |
2716 | fputs_filtered (str, stream); | |
2717 | fprintf_filtered (stream, ">"); | |
c906108c | 2718 | } |
ae6a3a4c | 2719 | |
c906108c SS |
2720 | gdb_flush (stream); |
2721 | do_cleanups (old_chain); | |
ae6a3a4c TJB |
2722 | |
2723 | return (bytes_read / width); | |
c906108c | 2724 | } |
c906108c | 2725 | \f |
c5aa993b | 2726 | |
09e6485f PA |
2727 | /* The 'set input-radix' command writes to this auxiliary variable. |
2728 | If the requested radix is valid, INPUT_RADIX is updated; otherwise, | |
2729 | it is left unchanged. */ | |
2730 | ||
2731 | static unsigned input_radix_1 = 10; | |
2732 | ||
c906108c SS |
2733 | /* Validate an input or output radix setting, and make sure the user |
2734 | knows what they really did here. Radix setting is confusing, e.g. | |
2735 | setting the input radix to "10" never changes it! */ | |
2736 | ||
c906108c | 2737 | static void |
fba45db2 | 2738 | set_input_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2739 | { |
09e6485f | 2740 | set_input_radix_1 (from_tty, input_radix_1); |
c906108c SS |
2741 | } |
2742 | ||
c906108c | 2743 | static void |
fba45db2 | 2744 | set_input_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
2745 | { |
2746 | /* We don't currently disallow any input radix except 0 or 1, which don't | |
2747 | make any mathematical sense. In theory, we can deal with any input | |
2748 | radix greater than 1, even if we don't have unique digits for every | |
2749 | value from 0 to radix-1, but in practice we lose on large radix values. | |
2750 | We should either fix the lossage or restrict the radix range more. | |
581e13c1 | 2751 | (FIXME). */ |
c906108c SS |
2752 | |
2753 | if (radix < 2) | |
2754 | { | |
09e6485f | 2755 | input_radix_1 = input_radix; |
8a3fe4f8 | 2756 | error (_("Nonsense input radix ``decimal %u''; input radix unchanged."), |
c906108c SS |
2757 | radix); |
2758 | } | |
09e6485f | 2759 | input_radix_1 = input_radix = radix; |
c906108c SS |
2760 | if (from_tty) |
2761 | { | |
3e43a32a MS |
2762 | printf_filtered (_("Input radix now set to " |
2763 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2764 | radix, radix, radix); |
2765 | } | |
2766 | } | |
2767 | ||
09e6485f PA |
2768 | /* The 'set output-radix' command writes to this auxiliary variable. |
2769 | If the requested radix is valid, OUTPUT_RADIX is updated, | |
2770 | otherwise, it is left unchanged. */ | |
2771 | ||
2772 | static unsigned output_radix_1 = 10; | |
2773 | ||
c906108c | 2774 | static void |
fba45db2 | 2775 | set_output_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 2776 | { |
09e6485f | 2777 | set_output_radix_1 (from_tty, output_radix_1); |
c906108c SS |
2778 | } |
2779 | ||
2780 | static void | |
fba45db2 | 2781 | set_output_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
2782 | { |
2783 | /* Validate the radix and disallow ones that we aren't prepared to | |
581e13c1 | 2784 | handle correctly, leaving the radix unchanged. */ |
c906108c SS |
2785 | switch (radix) |
2786 | { | |
2787 | case 16: | |
79a45b7d | 2788 | user_print_options.output_format = 'x'; /* hex */ |
c906108c SS |
2789 | break; |
2790 | case 10: | |
79a45b7d | 2791 | user_print_options.output_format = 0; /* decimal */ |
c906108c SS |
2792 | break; |
2793 | case 8: | |
79a45b7d | 2794 | user_print_options.output_format = 'o'; /* octal */ |
c906108c SS |
2795 | break; |
2796 | default: | |
09e6485f | 2797 | output_radix_1 = output_radix; |
3e43a32a MS |
2798 | error (_("Unsupported output radix ``decimal %u''; " |
2799 | "output radix unchanged."), | |
c906108c SS |
2800 | radix); |
2801 | } | |
09e6485f | 2802 | output_radix_1 = output_radix = radix; |
c906108c SS |
2803 | if (from_tty) |
2804 | { | |
3e43a32a MS |
2805 | printf_filtered (_("Output radix now set to " |
2806 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2807 | radix, radix, radix); |
2808 | } | |
2809 | } | |
2810 | ||
2811 | /* Set both the input and output radix at once. Try to set the output radix | |
2812 | first, since it has the most restrictive range. An radix that is valid as | |
2813 | an output radix is also valid as an input radix. | |
2814 | ||
2815 | It may be useful to have an unusual input radix. If the user wishes to | |
2816 | set an input radix that is not valid as an output radix, he needs to use | |
581e13c1 | 2817 | the 'set input-radix' command. */ |
c906108c SS |
2818 | |
2819 | static void | |
fba45db2 | 2820 | set_radix (char *arg, int from_tty) |
c906108c SS |
2821 | { |
2822 | unsigned radix; | |
2823 | ||
bb518678 | 2824 | radix = (arg == NULL) ? 10 : parse_and_eval_long (arg); |
c906108c SS |
2825 | set_output_radix_1 (0, radix); |
2826 | set_input_radix_1 (0, radix); | |
2827 | if (from_tty) | |
2828 | { | |
3e43a32a MS |
2829 | printf_filtered (_("Input and output radices now set to " |
2830 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2831 | radix, radix, radix); |
2832 | } | |
2833 | } | |
2834 | ||
581e13c1 | 2835 | /* Show both the input and output radices. */ |
c906108c | 2836 | |
c906108c | 2837 | static void |
fba45db2 | 2838 | show_radix (char *arg, int from_tty) |
c906108c SS |
2839 | { |
2840 | if (from_tty) | |
2841 | { | |
2842 | if (input_radix == output_radix) | |
2843 | { | |
3e43a32a MS |
2844 | printf_filtered (_("Input and output radices set to " |
2845 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
2846 | input_radix, input_radix, input_radix); |
2847 | } | |
2848 | else | |
2849 | { | |
3e43a32a MS |
2850 | printf_filtered (_("Input radix set to decimal " |
2851 | "%u, hex %x, octal %o.\n"), | |
c906108c | 2852 | input_radix, input_radix, input_radix); |
3e43a32a MS |
2853 | printf_filtered (_("Output radix set to decimal " |
2854 | "%u, hex %x, octal %o.\n"), | |
c906108c SS |
2855 | output_radix, output_radix, output_radix); |
2856 | } | |
2857 | } | |
2858 | } | |
c906108c | 2859 | \f |
c5aa993b | 2860 | |
c906108c | 2861 | static void |
fba45db2 | 2862 | set_print (char *arg, int from_tty) |
c906108c SS |
2863 | { |
2864 | printf_unfiltered ( | |
c5aa993b | 2865 | "\"set print\" must be followed by the name of a print subcommand.\n"); |
635c7e8a | 2866 | help_list (setprintlist, "set print ", all_commands, gdb_stdout); |
c906108c SS |
2867 | } |
2868 | ||
c906108c | 2869 | static void |
fba45db2 | 2870 | show_print (char *args, int from_tty) |
c906108c SS |
2871 | { |
2872 | cmd_show_list (showprintlist, from_tty, ""); | |
2873 | } | |
e7045703 DE |
2874 | |
2875 | static void | |
2876 | set_print_raw (char *arg, int from_tty) | |
2877 | { | |
2878 | printf_unfiltered ( | |
2879 | "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n"); | |
635c7e8a | 2880 | help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout); |
e7045703 DE |
2881 | } |
2882 | ||
2883 | static void | |
2884 | show_print_raw (char *args, int from_tty) | |
2885 | { | |
2886 | cmd_show_list (showprintrawlist, from_tty, ""); | |
2887 | } | |
2888 | ||
c906108c SS |
2889 | \f |
2890 | void | |
fba45db2 | 2891 | _initialize_valprint (void) |
c906108c | 2892 | { |
c906108c | 2893 | add_prefix_cmd ("print", no_class, set_print, |
1bedd215 | 2894 | _("Generic command for setting how things print."), |
c906108c | 2895 | &setprintlist, "set print ", 0, &setlist); |
c5aa993b | 2896 | add_alias_cmd ("p", "print", no_class, 1, &setlist); |
581e13c1 | 2897 | /* Prefer set print to set prompt. */ |
c906108c SS |
2898 | add_alias_cmd ("pr", "print", no_class, 1, &setlist); |
2899 | ||
2900 | add_prefix_cmd ("print", no_class, show_print, | |
1bedd215 | 2901 | _("Generic command for showing print settings."), |
c906108c | 2902 | &showprintlist, "show print ", 0, &showlist); |
c5aa993b JM |
2903 | add_alias_cmd ("p", "print", no_class, 1, &showlist); |
2904 | add_alias_cmd ("pr", "print", no_class, 1, &showlist); | |
c906108c | 2905 | |
e7045703 DE |
2906 | add_prefix_cmd ("raw", no_class, set_print_raw, |
2907 | _("\ | |
2908 | Generic command for setting what things to print in \"raw\" mode."), | |
2909 | &setprintrawlist, "set print raw ", 0, &setprintlist); | |
2910 | add_prefix_cmd ("raw", no_class, show_print_raw, | |
2911 | _("Generic command for showing \"print raw\" settings."), | |
2912 | &showprintrawlist, "show print raw ", 0, &showprintlist); | |
2913 | ||
79a45b7d TT |
2914 | add_setshow_uinteger_cmd ("elements", no_class, |
2915 | &user_print_options.print_max, _("\ | |
35096d9d AC |
2916 | Set limit on string chars or array elements to print."), _("\ |
2917 | Show limit on string chars or array elements to print."), _("\ | |
f81d1120 | 2918 | \"set print elements unlimited\" causes there to be no limit."), |
35096d9d | 2919 | NULL, |
920d2a44 | 2920 | show_print_max, |
35096d9d | 2921 | &setprintlist, &showprintlist); |
c906108c | 2922 | |
79a45b7d TT |
2923 | add_setshow_boolean_cmd ("null-stop", no_class, |
2924 | &user_print_options.stop_print_at_null, _("\ | |
5bf193a2 AC |
2925 | Set printing of char arrays to stop at first null char."), _("\ |
2926 | Show printing of char arrays to stop at first null char."), NULL, | |
2927 | NULL, | |
920d2a44 | 2928 | show_stop_print_at_null, |
5bf193a2 | 2929 | &setprintlist, &showprintlist); |
c906108c | 2930 | |
35096d9d | 2931 | add_setshow_uinteger_cmd ("repeats", no_class, |
79a45b7d | 2932 | &user_print_options.repeat_count_threshold, _("\ |
35096d9d AC |
2933 | Set threshold for repeated print elements."), _("\ |
2934 | Show threshold for repeated print elements."), _("\ | |
f81d1120 | 2935 | \"set print repeats unlimited\" causes all elements to be individually printed."), |
35096d9d | 2936 | NULL, |
920d2a44 | 2937 | show_repeat_count_threshold, |
35096d9d | 2938 | &setprintlist, &showprintlist); |
c906108c | 2939 | |
79a45b7d | 2940 | add_setshow_boolean_cmd ("pretty", class_support, |
2a998fc0 DE |
2941 | &user_print_options.prettyformat_structs, _("\ |
2942 | Set pretty formatting of structures."), _("\ | |
2943 | Show pretty formatting of structures."), NULL, | |
5bf193a2 | 2944 | NULL, |
2a998fc0 | 2945 | show_prettyformat_structs, |
5bf193a2 AC |
2946 | &setprintlist, &showprintlist); |
2947 | ||
79a45b7d TT |
2948 | add_setshow_boolean_cmd ("union", class_support, |
2949 | &user_print_options.unionprint, _("\ | |
5bf193a2 AC |
2950 | Set printing of unions interior to structures."), _("\ |
2951 | Show printing of unions interior to structures."), NULL, | |
2952 | NULL, | |
920d2a44 | 2953 | show_unionprint, |
5bf193a2 AC |
2954 | &setprintlist, &showprintlist); |
2955 | ||
79a45b7d | 2956 | add_setshow_boolean_cmd ("array", class_support, |
2a998fc0 DE |
2957 | &user_print_options.prettyformat_arrays, _("\ |
2958 | Set pretty formatting of arrays."), _("\ | |
2959 | Show pretty formatting of arrays."), NULL, | |
5bf193a2 | 2960 | NULL, |
2a998fc0 | 2961 | show_prettyformat_arrays, |
5bf193a2 AC |
2962 | &setprintlist, &showprintlist); |
2963 | ||
79a45b7d TT |
2964 | add_setshow_boolean_cmd ("address", class_support, |
2965 | &user_print_options.addressprint, _("\ | |
5bf193a2 AC |
2966 | Set printing of addresses."), _("\ |
2967 | Show printing of addresses."), NULL, | |
2968 | NULL, | |
920d2a44 | 2969 | show_addressprint, |
5bf193a2 | 2970 | &setprintlist, &showprintlist); |
c906108c | 2971 | |
9cb709b6 TT |
2972 | add_setshow_boolean_cmd ("symbol", class_support, |
2973 | &user_print_options.symbol_print, _("\ | |
2974 | Set printing of symbol names when printing pointers."), _("\ | |
2975 | Show printing of symbol names when printing pointers."), | |
2976 | NULL, NULL, | |
2977 | show_symbol_print, | |
2978 | &setprintlist, &showprintlist); | |
2979 | ||
1e8fb976 PA |
2980 | add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1, |
2981 | _("\ | |
35096d9d AC |
2982 | Set default input radix for entering numbers."), _("\ |
2983 | Show default input radix for entering numbers."), NULL, | |
1e8fb976 PA |
2984 | set_input_radix, |
2985 | show_input_radix, | |
2986 | &setlist, &showlist); | |
35096d9d | 2987 | |
1e8fb976 PA |
2988 | add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1, |
2989 | _("\ | |
35096d9d AC |
2990 | Set default output radix for printing of values."), _("\ |
2991 | Show default output radix for printing of values."), NULL, | |
1e8fb976 PA |
2992 | set_output_radix, |
2993 | show_output_radix, | |
2994 | &setlist, &showlist); | |
c906108c | 2995 | |
cb1a6d5f AC |
2996 | /* The "set radix" and "show radix" commands are special in that |
2997 | they are like normal set and show commands but allow two normally | |
2998 | independent variables to be either set or shown with a single | |
b66df561 | 2999 | command. So the usual deprecated_add_set_cmd() and [deleted] |
581e13c1 | 3000 | add_show_from_set() commands aren't really appropriate. */ |
b66df561 AC |
3001 | /* FIXME: i18n: With the new add_setshow_integer command, that is no |
3002 | longer true - show can display anything. */ | |
1a966eab AC |
3003 | add_cmd ("radix", class_support, set_radix, _("\ |
3004 | Set default input and output number radices.\n\ | |
c906108c | 3005 | Use 'set input-radix' or 'set output-radix' to independently set each.\n\ |
1a966eab | 3006 | Without an argument, sets both radices back to the default value of 10."), |
c906108c | 3007 | &setlist); |
1a966eab AC |
3008 | add_cmd ("radix", class_support, show_radix, _("\ |
3009 | Show the default input and output number radices.\n\ | |
3010 | Use 'show input-radix' or 'show output-radix' to independently show each."), | |
c906108c SS |
3011 | &showlist); |
3012 | ||
e79af960 | 3013 | add_setshow_boolean_cmd ("array-indexes", class_support, |
79a45b7d | 3014 | &user_print_options.print_array_indexes, _("\ |
e79af960 JB |
3015 | Set printing of array indexes."), _("\ |
3016 | Show printing of array indexes"), NULL, NULL, show_print_array_indexes, | |
3017 | &setprintlist, &showprintlist); | |
c906108c | 3018 | } |