Commit | Line | Data |
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c906108c | 1 | /* Print values for GDB, the GNU debugger. |
5c1c87f0 | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 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" | |
3f2f83dd | 37 | #include "typeprint.h" |
3b2b8fea | 38 | #include <ctype.h> |
325fac50 | 39 | #include <algorithm> |
d5722aa2 | 40 | #include "common/byte-vector.h" |
c906108c | 41 | |
0d63ecda KS |
42 | /* Maximum number of wchars returned from wchar_iterate. */ |
43 | #define MAX_WCHARS 4 | |
44 | ||
45 | /* A convenience macro to compute the size of a wchar_t buffer containing X | |
46 | characters. */ | |
47 | #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t)) | |
48 | ||
49 | /* Character buffer size saved while iterating over wchars. */ | |
50 | #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS) | |
51 | ||
52 | /* A structure to encapsulate state information from iterated | |
53 | character conversions. */ | |
54 | struct converted_character | |
55 | { | |
56 | /* The number of characters converted. */ | |
57 | int num_chars; | |
58 | ||
59 | /* The result of the conversion. See charset.h for more. */ | |
60 | enum wchar_iterate_result result; | |
61 | ||
62 | /* The (saved) converted character(s). */ | |
63 | gdb_wchar_t chars[WCHAR_BUFLEN_MAX]; | |
64 | ||
65 | /* The first converted target byte. */ | |
66 | const gdb_byte *buf; | |
67 | ||
68 | /* The number of bytes converted. */ | |
69 | size_t buflen; | |
70 | ||
71 | /* How many times this character(s) is repeated. */ | |
72 | int repeat_count; | |
73 | }; | |
74 | ||
75 | typedef struct converted_character converted_character_d; | |
76 | DEF_VEC_O (converted_character_d); | |
77 | ||
e7045703 DE |
78 | /* Command lists for set/show print raw. */ |
79 | struct cmd_list_element *setprintrawlist; | |
80 | struct cmd_list_element *showprintrawlist; | |
0d63ecda | 81 | |
c906108c SS |
82 | /* Prototypes for local functions */ |
83 | ||
777ea8f1 | 84 | static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 85 | int len, int *errptr); |
917317f4 | 86 | |
a14ed312 | 87 | static void show_print (char *, int); |
c906108c | 88 | |
a14ed312 | 89 | static void set_print (char *, int); |
c906108c | 90 | |
a14ed312 | 91 | static void set_input_radix (char *, int, struct cmd_list_element *); |
c906108c | 92 | |
a14ed312 | 93 | static void set_input_radix_1 (int, unsigned); |
c906108c | 94 | |
a14ed312 | 95 | static void set_output_radix (char *, int, struct cmd_list_element *); |
c906108c | 96 | |
a14ed312 | 97 | static void set_output_radix_1 (int, unsigned); |
c906108c | 98 | |
81516450 DE |
99 | static void val_print_type_code_flags (struct type *type, |
100 | const gdb_byte *valaddr, | |
101 | struct ui_file *stream); | |
102 | ||
581e13c1 | 103 | #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ |
79a45b7d TT |
104 | |
105 | struct value_print_options user_print_options = | |
106 | { | |
2a998fc0 DE |
107 | Val_prettyformat_default, /* prettyformat */ |
108 | 0, /* prettyformat_arrays */ | |
109 | 0, /* prettyformat_structs */ | |
79a45b7d TT |
110 | 0, /* vtblprint */ |
111 | 1, /* unionprint */ | |
112 | 1, /* addressprint */ | |
113 | 0, /* objectprint */ | |
114 | PRINT_MAX_DEFAULT, /* print_max */ | |
115 | 10, /* repeat_count_threshold */ | |
116 | 0, /* output_format */ | |
117 | 0, /* format */ | |
118 | 0, /* stop_print_at_null */ | |
79a45b7d TT |
119 | 0, /* print_array_indexes */ |
120 | 0, /* deref_ref */ | |
121 | 1, /* static_field_print */ | |
a6bac58e TT |
122 | 1, /* pascal_static_field_print */ |
123 | 0, /* raw */ | |
9cb709b6 TT |
124 | 0, /* summary */ |
125 | 1 /* symbol_print */ | |
79a45b7d TT |
126 | }; |
127 | ||
128 | /* Initialize *OPTS to be a copy of the user print options. */ | |
129 | void | |
130 | get_user_print_options (struct value_print_options *opts) | |
131 | { | |
132 | *opts = user_print_options; | |
133 | } | |
134 | ||
135 | /* Initialize *OPTS to be a copy of the user print options, but with | |
2a998fc0 | 136 | pretty-formatting disabled. */ |
79a45b7d | 137 | void |
2a998fc0 | 138 | get_no_prettyformat_print_options (struct value_print_options *opts) |
79a45b7d TT |
139 | { |
140 | *opts = user_print_options; | |
2a998fc0 | 141 | opts->prettyformat = Val_no_prettyformat; |
79a45b7d TT |
142 | } |
143 | ||
144 | /* Initialize *OPTS to be a copy of the user print options, but using | |
145 | FORMAT as the formatting option. */ | |
146 | void | |
147 | get_formatted_print_options (struct value_print_options *opts, | |
148 | char format) | |
149 | { | |
150 | *opts = user_print_options; | |
151 | opts->format = format; | |
152 | } | |
153 | ||
920d2a44 AC |
154 | static void |
155 | show_print_max (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
3e43a32a MS |
158 | fprintf_filtered (file, |
159 | _("Limit on string chars or array " | |
160 | "elements to print is %s.\n"), | |
920d2a44 AC |
161 | value); |
162 | } | |
163 | ||
c906108c SS |
164 | |
165 | /* Default input and output radixes, and output format letter. */ | |
166 | ||
167 | unsigned input_radix = 10; | |
920d2a44 AC |
168 | static void |
169 | show_input_radix (struct ui_file *file, int from_tty, | |
170 | struct cmd_list_element *c, const char *value) | |
171 | { | |
3e43a32a MS |
172 | fprintf_filtered (file, |
173 | _("Default input radix for entering numbers is %s.\n"), | |
920d2a44 AC |
174 | value); |
175 | } | |
176 | ||
c906108c | 177 | unsigned output_radix = 10; |
920d2a44 AC |
178 | static void |
179 | show_output_radix (struct ui_file *file, int from_tty, | |
180 | struct cmd_list_element *c, const char *value) | |
181 | { | |
3e43a32a MS |
182 | fprintf_filtered (file, |
183 | _("Default output radix for printing of values is %s.\n"), | |
920d2a44 AC |
184 | value); |
185 | } | |
c906108c | 186 | |
e79af960 JB |
187 | /* By default we print arrays without printing the index of each element in |
188 | the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */ | |
189 | ||
e79af960 JB |
190 | static void |
191 | show_print_array_indexes (struct ui_file *file, int from_tty, | |
192 | struct cmd_list_element *c, const char *value) | |
193 | { | |
194 | fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value); | |
195 | } | |
196 | ||
c906108c SS |
197 | /* Print repeat counts if there are more than this many repetitions of an |
198 | element in an array. Referenced by the low level language dependent | |
581e13c1 | 199 | print routines. */ |
c906108c | 200 | |
920d2a44 AC |
201 | static void |
202 | show_repeat_count_threshold (struct ui_file *file, int from_tty, | |
203 | struct cmd_list_element *c, const char *value) | |
204 | { | |
205 | fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"), | |
206 | value); | |
207 | } | |
c906108c | 208 | |
581e13c1 | 209 | /* If nonzero, stops printing of char arrays at first null. */ |
c906108c | 210 | |
920d2a44 AC |
211 | static void |
212 | show_stop_print_at_null (struct ui_file *file, int from_tty, | |
213 | struct cmd_list_element *c, const char *value) | |
214 | { | |
3e43a32a MS |
215 | fprintf_filtered (file, |
216 | _("Printing of char arrays to stop " | |
217 | "at first null char is %s.\n"), | |
920d2a44 AC |
218 | value); |
219 | } | |
c906108c | 220 | |
581e13c1 | 221 | /* Controls pretty printing of structures. */ |
c906108c | 222 | |
920d2a44 | 223 | static void |
2a998fc0 | 224 | show_prettyformat_structs (struct ui_file *file, int from_tty, |
920d2a44 AC |
225 | struct cmd_list_element *c, const char *value) |
226 | { | |
2a998fc0 | 227 | fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value); |
920d2a44 | 228 | } |
c906108c SS |
229 | |
230 | /* Controls pretty printing of arrays. */ | |
231 | ||
920d2a44 | 232 | static void |
2a998fc0 | 233 | show_prettyformat_arrays (struct ui_file *file, int from_tty, |
920d2a44 AC |
234 | struct cmd_list_element *c, const char *value) |
235 | { | |
2a998fc0 | 236 | fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value); |
920d2a44 | 237 | } |
c906108c SS |
238 | |
239 | /* If nonzero, causes unions inside structures or other unions to be | |
581e13c1 | 240 | printed. */ |
c906108c | 241 | |
920d2a44 AC |
242 | static void |
243 | show_unionprint (struct ui_file *file, int from_tty, | |
244 | struct cmd_list_element *c, const char *value) | |
245 | { | |
3e43a32a MS |
246 | fprintf_filtered (file, |
247 | _("Printing of unions interior to structures is %s.\n"), | |
920d2a44 AC |
248 | value); |
249 | } | |
c906108c | 250 | |
581e13c1 | 251 | /* If nonzero, causes machine addresses to be printed in certain contexts. */ |
c906108c | 252 | |
920d2a44 AC |
253 | static void |
254 | show_addressprint (struct ui_file *file, int from_tty, | |
255 | struct cmd_list_element *c, const char *value) | |
256 | { | |
257 | fprintf_filtered (file, _("Printing of addresses is %s.\n"), value); | |
258 | } | |
9cb709b6 TT |
259 | |
260 | static void | |
261 | show_symbol_print (struct ui_file *file, int from_tty, | |
262 | struct cmd_list_element *c, const char *value) | |
263 | { | |
264 | fprintf_filtered (file, | |
265 | _("Printing of symbols when printing pointers is %s.\n"), | |
266 | value); | |
267 | } | |
268 | ||
c906108c | 269 | \f |
c5aa993b | 270 | |
a6bac58e TT |
271 | /* A helper function for val_print. When printing in "summary" mode, |
272 | we want to print scalar arguments, but not aggregate arguments. | |
273 | This function distinguishes between the two. */ | |
274 | ||
6211c335 YQ |
275 | int |
276 | val_print_scalar_type_p (struct type *type) | |
a6bac58e | 277 | { |
f168693b | 278 | type = check_typedef (type); |
aa006118 | 279 | while (TYPE_IS_REFERENCE (type)) |
a6bac58e TT |
280 | { |
281 | type = TYPE_TARGET_TYPE (type); | |
f168693b | 282 | type = check_typedef (type); |
a6bac58e TT |
283 | } |
284 | switch (TYPE_CODE (type)) | |
285 | { | |
286 | case TYPE_CODE_ARRAY: | |
287 | case TYPE_CODE_STRUCT: | |
288 | case TYPE_CODE_UNION: | |
289 | case TYPE_CODE_SET: | |
290 | case TYPE_CODE_STRING: | |
a6bac58e TT |
291 | return 0; |
292 | default: | |
293 | return 1; | |
294 | } | |
295 | } | |
296 | ||
a72c8f6a | 297 | /* See its definition in value.h. */ |
0e03807e | 298 | |
a72c8f6a | 299 | int |
0e03807e TT |
300 | valprint_check_validity (struct ui_file *stream, |
301 | struct type *type, | |
6b850546 | 302 | LONGEST embedded_offset, |
0e03807e TT |
303 | const struct value *val) |
304 | { | |
f168693b | 305 | type = check_typedef (type); |
0e03807e | 306 | |
3f2f83dd KB |
307 | if (type_not_associated (type)) |
308 | { | |
309 | val_print_not_associated (stream); | |
310 | return 0; | |
311 | } | |
312 | ||
313 | if (type_not_allocated (type)) | |
314 | { | |
315 | val_print_not_allocated (stream); | |
316 | return 0; | |
317 | } | |
318 | ||
0e03807e TT |
319 | if (TYPE_CODE (type) != TYPE_CODE_UNION |
320 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
321 | && TYPE_CODE (type) != TYPE_CODE_ARRAY) | |
322 | { | |
9a0dc9e3 PA |
323 | if (value_bits_any_optimized_out (val, |
324 | TARGET_CHAR_BIT * embedded_offset, | |
325 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
0e03807e | 326 | { |
901461f8 | 327 | val_print_optimized_out (val, stream); |
0e03807e TT |
328 | return 0; |
329 | } | |
8cf6f0b1 | 330 | |
4e07d55f | 331 | if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset, |
8cf6f0b1 TT |
332 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) |
333 | { | |
3326303b MG |
334 | const int is_ref = TYPE_CODE (type) == TYPE_CODE_REF; |
335 | int ref_is_addressable = 0; | |
336 | ||
337 | if (is_ref) | |
338 | { | |
339 | const struct value *deref_val = coerce_ref_if_computed (val); | |
340 | ||
341 | if (deref_val != NULL) | |
342 | ref_is_addressable = value_lval_const (deref_val) == lval_memory; | |
343 | } | |
344 | ||
345 | if (!is_ref || !ref_is_addressable) | |
346 | fputs_filtered (_("<synthetic pointer>"), stream); | |
347 | ||
348 | /* C++ references should be valid even if they're synthetic. */ | |
349 | return is_ref; | |
8cf6f0b1 | 350 | } |
4e07d55f PA |
351 | |
352 | if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) | |
353 | { | |
354 | val_print_unavailable (stream); | |
355 | return 0; | |
356 | } | |
0e03807e TT |
357 | } |
358 | ||
359 | return 1; | |
360 | } | |
361 | ||
585fdaa1 | 362 | void |
901461f8 | 363 | val_print_optimized_out (const struct value *val, struct ui_file *stream) |
585fdaa1 | 364 | { |
901461f8 | 365 | if (val != NULL && value_lval_const (val) == lval_register) |
782d47df | 366 | val_print_not_saved (stream); |
901461f8 PA |
367 | else |
368 | fprintf_filtered (stream, _("<optimized out>")); | |
585fdaa1 PA |
369 | } |
370 | ||
782d47df PA |
371 | void |
372 | val_print_not_saved (struct ui_file *stream) | |
373 | { | |
374 | fprintf_filtered (stream, _("<not saved>")); | |
375 | } | |
376 | ||
4e07d55f PA |
377 | void |
378 | val_print_unavailable (struct ui_file *stream) | |
379 | { | |
380 | fprintf_filtered (stream, _("<unavailable>")); | |
381 | } | |
382 | ||
8af8e3bc PA |
383 | void |
384 | val_print_invalid_address (struct ui_file *stream) | |
385 | { | |
386 | fprintf_filtered (stream, _("<invalid address>")); | |
387 | } | |
388 | ||
9f436164 SM |
389 | /* Print a pointer based on the type of its target. |
390 | ||
391 | Arguments to this functions are roughly the same as those in | |
392 | generic_val_print. A difference is that ADDRESS is the address to print, | |
393 | with embedded_offset already added. ELTTYPE represents | |
394 | the pointed type after check_typedef. */ | |
395 | ||
396 | static void | |
397 | print_unpacked_pointer (struct type *type, struct type *elttype, | |
398 | CORE_ADDR address, struct ui_file *stream, | |
399 | const struct value_print_options *options) | |
400 | { | |
401 | struct gdbarch *gdbarch = get_type_arch (type); | |
402 | ||
403 | if (TYPE_CODE (elttype) == TYPE_CODE_FUNC) | |
404 | { | |
405 | /* Try to print what function it points to. */ | |
406 | print_function_pointer_address (options, gdbarch, address, stream); | |
407 | return; | |
408 | } | |
409 | ||
410 | if (options->symbol_print) | |
411 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
412 | else if (options->addressprint) | |
413 | fputs_filtered (paddress (gdbarch, address), stream); | |
414 | } | |
415 | ||
557dbe8a SM |
416 | /* generic_val_print helper for TYPE_CODE_ARRAY. */ |
417 | ||
418 | static void | |
e8b24d9f | 419 | generic_val_print_array (struct type *type, |
00272ec4 TT |
420 | int embedded_offset, CORE_ADDR address, |
421 | struct ui_file *stream, int recurse, | |
e8b24d9f | 422 | struct value *original_value, |
00272ec4 TT |
423 | const struct value_print_options *options, |
424 | const struct | |
425 | generic_val_print_decorations *decorations) | |
557dbe8a SM |
426 | { |
427 | struct type *unresolved_elttype = TYPE_TARGET_TYPE (type); | |
428 | struct type *elttype = check_typedef (unresolved_elttype); | |
429 | ||
430 | if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0) | |
431 | { | |
432 | LONGEST low_bound, high_bound; | |
433 | ||
434 | if (!get_array_bounds (type, &low_bound, &high_bound)) | |
435 | error (_("Could not determine the array high bound")); | |
436 | ||
437 | if (options->prettyformat_arrays) | |
438 | { | |
439 | print_spaces_filtered (2 + 2 * recurse, stream); | |
440 | } | |
441 | ||
00272ec4 | 442 | fputs_filtered (decorations->array_start, stream); |
e8b24d9f | 443 | val_print_array_elements (type, embedded_offset, |
557dbe8a SM |
444 | address, stream, |
445 | recurse, original_value, options, 0); | |
00272ec4 | 446 | fputs_filtered (decorations->array_end, stream); |
557dbe8a SM |
447 | } |
448 | else | |
449 | { | |
450 | /* Array of unspecified length: treat like pointer to first elt. */ | |
451 | print_unpacked_pointer (type, elttype, address + embedded_offset, stream, | |
452 | options); | |
453 | } | |
454 | ||
455 | } | |
456 | ||
81eb921a SM |
457 | /* generic_val_print helper for TYPE_CODE_PTR. */ |
458 | ||
459 | static void | |
e8b24d9f | 460 | generic_val_print_ptr (struct type *type, |
81eb921a | 461 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 462 | struct value *original_value, |
81eb921a SM |
463 | const struct value_print_options *options) |
464 | { | |
3ae385af SM |
465 | struct gdbarch *gdbarch = get_type_arch (type); |
466 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
467 | ||
81eb921a SM |
468 | if (options->format && options->format != 's') |
469 | { | |
e8b24d9f | 470 | val_print_scalar_formatted (type, embedded_offset, |
81eb921a SM |
471 | original_value, options, 0, stream); |
472 | } | |
473 | else | |
474 | { | |
475 | struct type *unresolved_elttype = TYPE_TARGET_TYPE(type); | |
476 | struct type *elttype = check_typedef (unresolved_elttype); | |
e8b24d9f | 477 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af SM |
478 | CORE_ADDR addr = unpack_pointer (type, |
479 | valaddr + embedded_offset * unit_size); | |
81eb921a SM |
480 | |
481 | print_unpacked_pointer (type, elttype, addr, stream, options); | |
482 | } | |
483 | } | |
484 | ||
45000ea2 SM |
485 | |
486 | /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */ | |
487 | ||
488 | static void | |
e8b24d9f | 489 | generic_val_print_memberptr (struct type *type, |
45000ea2 | 490 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 491 | struct value *original_value, |
45000ea2 SM |
492 | const struct value_print_options *options) |
493 | { | |
e8b24d9f | 494 | val_print_scalar_formatted (type, embedded_offset, |
45000ea2 SM |
495 | original_value, options, 0, stream); |
496 | } | |
497 | ||
3326303b MG |
498 | /* Print '@' followed by the address contained in ADDRESS_BUFFER. */ |
499 | ||
500 | static void | |
501 | print_ref_address (struct type *type, const gdb_byte *address_buffer, | |
502 | int embedded_offset, struct ui_file *stream) | |
503 | { | |
504 | struct gdbarch *gdbarch = get_type_arch (type); | |
505 | ||
506 | if (address_buffer != NULL) | |
507 | { | |
508 | CORE_ADDR address | |
509 | = extract_typed_address (address_buffer + embedded_offset, type); | |
510 | ||
511 | fprintf_filtered (stream, "@"); | |
512 | fputs_filtered (paddress (gdbarch, address), stream); | |
513 | } | |
514 | /* Else: we have a non-addressable value, such as a DW_AT_const_value. */ | |
515 | } | |
516 | ||
517 | /* If VAL is addressable, return the value contents buffer of a value that | |
518 | represents a pointer to VAL. Otherwise return NULL. */ | |
519 | ||
520 | static const gdb_byte * | |
521 | get_value_addr_contents (struct value *deref_val) | |
522 | { | |
523 | gdb_assert (deref_val != NULL); | |
524 | ||
525 | if (value_lval_const (deref_val) == lval_memory) | |
526 | return value_contents_for_printing_const (value_addr (deref_val)); | |
527 | else | |
528 | { | |
529 | /* We have a non-addressable value, such as a DW_AT_const_value. */ | |
530 | return NULL; | |
531 | } | |
532 | } | |
533 | ||
aa006118 | 534 | /* generic_val_print helper for TYPE_CODE_{RVALUE_,}REF. */ |
fe43fede SM |
535 | |
536 | static void | |
e8b24d9f | 537 | generic_val_print_ref (struct type *type, |
fe43fede | 538 | int embedded_offset, struct ui_file *stream, int recurse, |
e8b24d9f | 539 | struct value *original_value, |
fe43fede SM |
540 | const struct value_print_options *options) |
541 | { | |
fe43fede | 542 | struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type)); |
3326303b MG |
543 | struct value *deref_val = NULL; |
544 | const int value_is_synthetic | |
545 | = value_bits_synthetic_pointer (original_value, | |
546 | TARGET_CHAR_BIT * embedded_offset, | |
547 | TARGET_CHAR_BIT * TYPE_LENGTH (type)); | |
548 | const int must_coerce_ref = ((options->addressprint && value_is_synthetic) | |
549 | || options->deref_ref); | |
550 | const int type_is_defined = TYPE_CODE (elttype) != TYPE_CODE_UNDEF; | |
e8b24d9f | 551 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3326303b MG |
552 | |
553 | if (must_coerce_ref && type_is_defined) | |
554 | { | |
555 | deref_val = coerce_ref_if_computed (original_value); | |
556 | ||
557 | if (deref_val != NULL) | |
558 | { | |
559 | /* More complicated computed references are not supported. */ | |
560 | gdb_assert (embedded_offset == 0); | |
561 | } | |
562 | else | |
563 | deref_val = value_at (TYPE_TARGET_TYPE (type), | |
564 | unpack_pointer (type, valaddr + embedded_offset)); | |
565 | } | |
566 | /* Else, original_value isn't a synthetic reference or we don't have to print | |
567 | the reference's contents. | |
568 | ||
569 | Notice that for references to TYPE_CODE_STRUCT, 'set print object on' will | |
570 | cause original_value to be a not_lval instead of an lval_computed, | |
571 | which will make value_bits_synthetic_pointer return false. | |
572 | This happens because if options->objectprint is true, c_value_print will | |
573 | overwrite original_value's contents with the result of coercing | |
574 | the reference through value_addr, and then set its type back to | |
575 | TYPE_CODE_REF. In that case we don't have to coerce the reference again; | |
576 | we can simply treat it as non-synthetic and move on. */ | |
fe43fede SM |
577 | |
578 | if (options->addressprint) | |
579 | { | |
3326303b MG |
580 | const gdb_byte *address = (value_is_synthetic && type_is_defined |
581 | ? get_value_addr_contents (deref_val) | |
582 | : valaddr); | |
583 | ||
584 | print_ref_address (type, address, embedded_offset, stream); | |
fe43fede | 585 | |
fe43fede SM |
586 | if (options->deref_ref) |
587 | fputs_filtered (": ", stream); | |
588 | } | |
3326303b | 589 | |
fe43fede SM |
590 | if (options->deref_ref) |
591 | { | |
3326303b MG |
592 | if (type_is_defined) |
593 | common_val_print (deref_val, stream, recurse, options, | |
594 | current_language); | |
fe43fede SM |
595 | else |
596 | fputs_filtered ("???", stream); | |
597 | } | |
598 | } | |
599 | ||
81516450 DE |
600 | /* Helper function for generic_val_print_enum. |
601 | This is also used to print enums in TYPE_CODE_FLAGS values. */ | |
ef0bc0dd SM |
602 | |
603 | static void | |
81516450 DE |
604 | generic_val_print_enum_1 (struct type *type, LONGEST val, |
605 | struct ui_file *stream) | |
ef0bc0dd SM |
606 | { |
607 | unsigned int i; | |
608 | unsigned int len; | |
ef0bc0dd | 609 | |
ef0bc0dd | 610 | len = TYPE_NFIELDS (type); |
ef0bc0dd SM |
611 | for (i = 0; i < len; i++) |
612 | { | |
613 | QUIT; | |
614 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
615 | { | |
616 | break; | |
617 | } | |
618 | } | |
619 | if (i < len) | |
620 | { | |
621 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
622 | } | |
623 | else if (TYPE_FLAG_ENUM (type)) | |
624 | { | |
625 | int first = 1; | |
626 | ||
627 | /* We have a "flag" enum, so we try to decompose it into | |
628 | pieces as appropriate. A flag enum has disjoint | |
629 | constants by definition. */ | |
630 | fputs_filtered ("(", stream); | |
631 | for (i = 0; i < len; ++i) | |
632 | { | |
633 | QUIT; | |
634 | ||
635 | if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0) | |
636 | { | |
637 | if (!first) | |
638 | fputs_filtered (" | ", stream); | |
639 | first = 0; | |
640 | ||
641 | val &= ~TYPE_FIELD_ENUMVAL (type, i); | |
642 | fputs_filtered (TYPE_FIELD_NAME (type, i), stream); | |
643 | } | |
644 | } | |
645 | ||
646 | if (first || val != 0) | |
647 | { | |
648 | if (!first) | |
649 | fputs_filtered (" | ", stream); | |
650 | fputs_filtered ("unknown: ", stream); | |
651 | print_longest (stream, 'd', 0, val); | |
652 | } | |
653 | ||
654 | fputs_filtered (")", stream); | |
655 | } | |
656 | else | |
657 | print_longest (stream, 'd', 0, val); | |
658 | } | |
659 | ||
81516450 DE |
660 | /* generic_val_print helper for TYPE_CODE_ENUM. */ |
661 | ||
662 | static void | |
e8b24d9f | 663 | generic_val_print_enum (struct type *type, |
81516450 | 664 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 665 | struct value *original_value, |
81516450 DE |
666 | const struct value_print_options *options) |
667 | { | |
668 | LONGEST val; | |
669 | struct gdbarch *gdbarch = get_type_arch (type); | |
670 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
671 | ||
672 | if (options->format) | |
673 | { | |
e8b24d9f | 674 | val_print_scalar_formatted (type, embedded_offset, |
81516450 | 675 | original_value, options, 0, stream); |
81516450 | 676 | } |
e8b24d9f YQ |
677 | else |
678 | { | |
679 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
680 | ||
681 | val = unpack_long (type, valaddr + embedded_offset * unit_size); | |
81516450 | 682 | |
e8b24d9f YQ |
683 | generic_val_print_enum_1 (type, val, stream); |
684 | } | |
81516450 DE |
685 | } |
686 | ||
d93880bd SM |
687 | /* generic_val_print helper for TYPE_CODE_FLAGS. */ |
688 | ||
689 | static void | |
e8b24d9f | 690 | generic_val_print_flags (struct type *type, |
d93880bd | 691 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 692 | struct value *original_value, |
d93880bd SM |
693 | const struct value_print_options *options) |
694 | ||
695 | { | |
696 | if (options->format) | |
e8b24d9f | 697 | val_print_scalar_formatted (type, embedded_offset, original_value, |
d93880bd SM |
698 | options, 0, stream); |
699 | else | |
e8b24d9f YQ |
700 | { |
701 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
702 | ||
703 | val_print_type_code_flags (type, valaddr + embedded_offset, stream); | |
704 | } | |
d93880bd SM |
705 | } |
706 | ||
4a8c372f SM |
707 | /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */ |
708 | ||
709 | static void | |
e8b24d9f | 710 | generic_val_print_func (struct type *type, |
4a8c372f SM |
711 | int embedded_offset, CORE_ADDR address, |
712 | struct ui_file *stream, | |
e8b24d9f | 713 | struct value *original_value, |
4a8c372f SM |
714 | const struct value_print_options *options) |
715 | { | |
716 | struct gdbarch *gdbarch = get_type_arch (type); | |
717 | ||
718 | if (options->format) | |
719 | { | |
e8b24d9f | 720 | val_print_scalar_formatted (type, embedded_offset, |
4a8c372f SM |
721 | original_value, options, 0, stream); |
722 | } | |
723 | else | |
724 | { | |
725 | /* FIXME, we should consider, at least for ANSI C language, | |
726 | eliminating the distinction made between FUNCs and POINTERs | |
727 | to FUNCs. */ | |
728 | fprintf_filtered (stream, "{"); | |
729 | type_print (type, "", stream, -1); | |
730 | fprintf_filtered (stream, "} "); | |
731 | /* Try to print what function it points to, and its address. */ | |
732 | print_address_demangle (options, gdbarch, address, stream, demangle); | |
733 | } | |
734 | } | |
735 | ||
e5bead4b SM |
736 | /* generic_val_print helper for TYPE_CODE_BOOL. */ |
737 | ||
738 | static void | |
e8b24d9f | 739 | generic_val_print_bool (struct type *type, |
e5bead4b | 740 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 741 | struct value *original_value, |
e5bead4b SM |
742 | const struct value_print_options *options, |
743 | const struct generic_val_print_decorations *decorations) | |
744 | { | |
745 | LONGEST val; | |
3ae385af SM |
746 | struct gdbarch *gdbarch = get_type_arch (type); |
747 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e5bead4b SM |
748 | |
749 | if (options->format || options->output_format) | |
750 | { | |
751 | struct value_print_options opts = *options; | |
752 | opts.format = (options->format ? options->format | |
753 | : options->output_format); | |
e8b24d9f | 754 | val_print_scalar_formatted (type, embedded_offset, |
e5bead4b SM |
755 | original_value, &opts, 0, stream); |
756 | } | |
757 | else | |
758 | { | |
e8b24d9f YQ |
759 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
760 | ||
3ae385af | 761 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
e5bead4b SM |
762 | if (val == 0) |
763 | fputs_filtered (decorations->false_name, stream); | |
764 | else if (val == 1) | |
765 | fputs_filtered (decorations->true_name, stream); | |
766 | else | |
767 | print_longest (stream, 'd', 0, val); | |
768 | } | |
769 | } | |
770 | ||
b21b6342 SM |
771 | /* generic_val_print helper for TYPE_CODE_INT. */ |
772 | ||
773 | static void | |
e8b24d9f | 774 | generic_val_print_int (struct type *type, |
b21b6342 | 775 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 776 | struct value *original_value, |
b21b6342 SM |
777 | const struct value_print_options *options) |
778 | { | |
f12f6bad | 779 | struct value_print_options opts = *options; |
3ae385af | 780 | |
f12f6bad TT |
781 | opts.format = (options->format ? options->format |
782 | : options->output_format); | |
783 | val_print_scalar_formatted (type, embedded_offset, | |
784 | original_value, &opts, 0, stream); | |
b21b6342 SM |
785 | } |
786 | ||
385f5aff SM |
787 | /* generic_val_print helper for TYPE_CODE_CHAR. */ |
788 | ||
789 | static void | |
790 | generic_val_print_char (struct type *type, struct type *unresolved_type, | |
e8b24d9f | 791 | int embedded_offset, |
385f5aff | 792 | struct ui_file *stream, |
e8b24d9f | 793 | struct value *original_value, |
385f5aff SM |
794 | const struct value_print_options *options) |
795 | { | |
796 | LONGEST val; | |
3ae385af SM |
797 | struct gdbarch *gdbarch = get_type_arch (type); |
798 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
385f5aff SM |
799 | |
800 | if (options->format || options->output_format) | |
801 | { | |
802 | struct value_print_options opts = *options; | |
803 | ||
804 | opts.format = (options->format ? options->format | |
805 | : options->output_format); | |
e8b24d9f | 806 | val_print_scalar_formatted (type, embedded_offset, |
385f5aff SM |
807 | original_value, &opts, 0, stream); |
808 | } | |
809 | else | |
810 | { | |
e8b24d9f YQ |
811 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
812 | ||
3ae385af | 813 | val = unpack_long (type, valaddr + embedded_offset * unit_size); |
385f5aff SM |
814 | if (TYPE_UNSIGNED (type)) |
815 | fprintf_filtered (stream, "%u", (unsigned int) val); | |
816 | else | |
817 | fprintf_filtered (stream, "%d", (int) val); | |
818 | fputs_filtered (" ", stream); | |
819 | LA_PRINT_CHAR (val, unresolved_type, stream); | |
820 | } | |
821 | } | |
822 | ||
7784724b SM |
823 | /* generic_val_print helper for TYPE_CODE_FLT. */ |
824 | ||
825 | static void | |
e8b24d9f | 826 | generic_val_print_float (struct type *type, |
7784724b | 827 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 828 | struct value *original_value, |
7784724b SM |
829 | const struct value_print_options *options) |
830 | { | |
3ae385af SM |
831 | struct gdbarch *gdbarch = get_type_arch (type); |
832 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
833 | ||
7784724b SM |
834 | if (options->format) |
835 | { | |
e8b24d9f | 836 | val_print_scalar_formatted (type, embedded_offset, |
7784724b SM |
837 | original_value, options, 0, stream); |
838 | } | |
839 | else | |
840 | { | |
e8b24d9f YQ |
841 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
842 | ||
3ae385af | 843 | print_floating (valaddr + embedded_offset * unit_size, type, stream); |
7784724b SM |
844 | } |
845 | } | |
846 | ||
9550ae5e SM |
847 | /* generic_val_print helper for TYPE_CODE_DECFLOAT. */ |
848 | ||
849 | static void | |
e8b24d9f | 850 | generic_val_print_decfloat (struct type *type, |
9550ae5e | 851 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 852 | struct value *original_value, |
9550ae5e SM |
853 | const struct value_print_options *options) |
854 | { | |
3ae385af SM |
855 | struct gdbarch *gdbarch = get_type_arch (type); |
856 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
857 | ||
9550ae5e | 858 | if (options->format) |
e8b24d9f | 859 | val_print_scalar_formatted (type, embedded_offset, original_value, |
9550ae5e SM |
860 | options, 0, stream); |
861 | else | |
e8b24d9f YQ |
862 | { |
863 | const gdb_byte *valaddr = value_contents_for_printing (original_value); | |
864 | ||
865 | print_decimal_floating (valaddr + embedded_offset * unit_size, type, | |
866 | stream); | |
867 | } | |
9550ae5e SM |
868 | } |
869 | ||
0c87c0bf SM |
870 | /* generic_val_print helper for TYPE_CODE_COMPLEX. */ |
871 | ||
872 | static void | |
e8b24d9f | 873 | generic_val_print_complex (struct type *type, |
0c87c0bf | 874 | int embedded_offset, struct ui_file *stream, |
e8b24d9f | 875 | struct value *original_value, |
0c87c0bf SM |
876 | const struct value_print_options *options, |
877 | const struct generic_val_print_decorations | |
878 | *decorations) | |
879 | { | |
3ae385af SM |
880 | struct gdbarch *gdbarch = get_type_arch (type); |
881 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
e8b24d9f | 882 | const gdb_byte *valaddr = value_contents_for_printing (original_value); |
3ae385af | 883 | |
0c87c0bf SM |
884 | fprintf_filtered (stream, "%s", decorations->complex_prefix); |
885 | if (options->format) | |
e8b24d9f | 886 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf SM |
887 | embedded_offset, original_value, options, 0, |
888 | stream); | |
889 | else | |
3ae385af SM |
890 | print_floating (valaddr + embedded_offset * unit_size, |
891 | TYPE_TARGET_TYPE (type), stream); | |
0c87c0bf SM |
892 | fprintf_filtered (stream, "%s", decorations->complex_infix); |
893 | if (options->format) | |
e8b24d9f | 894 | val_print_scalar_formatted (TYPE_TARGET_TYPE (type), |
0c87c0bf | 895 | embedded_offset |
3ae385af | 896 | + type_length_units (TYPE_TARGET_TYPE (type)), |
0c87c0bf SM |
897 | original_value, options, 0, stream); |
898 | else | |
3ae385af | 899 | print_floating (valaddr + embedded_offset * unit_size |
0c87c0bf SM |
900 | + TYPE_LENGTH (TYPE_TARGET_TYPE (type)), |
901 | TYPE_TARGET_TYPE (type), stream); | |
902 | fprintf_filtered (stream, "%s", decorations->complex_suffix); | |
903 | } | |
904 | ||
e88acd96 TT |
905 | /* A generic val_print that is suitable for use by language |
906 | implementations of the la_val_print method. This function can | |
907 | handle most type codes, though not all, notably exception | |
908 | TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by | |
909 | the caller. | |
910 | ||
911 | Most arguments are as to val_print. | |
912 | ||
913 | The additional DECORATIONS argument can be used to customize the | |
914 | output in some small, language-specific ways. */ | |
915 | ||
916 | void | |
e8b24d9f | 917 | generic_val_print (struct type *type, |
e88acd96 TT |
918 | int embedded_offset, CORE_ADDR address, |
919 | struct ui_file *stream, int recurse, | |
e8b24d9f | 920 | struct value *original_value, |
e88acd96 TT |
921 | const struct value_print_options *options, |
922 | const struct generic_val_print_decorations *decorations) | |
923 | { | |
e88acd96 | 924 | struct type *unresolved_type = type; |
e88acd96 | 925 | |
f168693b | 926 | type = check_typedef (type); |
e88acd96 TT |
927 | switch (TYPE_CODE (type)) |
928 | { | |
929 | case TYPE_CODE_ARRAY: | |
e8b24d9f | 930 | generic_val_print_array (type, embedded_offset, address, stream, |
00272ec4 | 931 | recurse, original_value, options, decorations); |
9f436164 | 932 | break; |
e88acd96 TT |
933 | |
934 | case TYPE_CODE_MEMBERPTR: | |
e8b24d9f | 935 | generic_val_print_memberptr (type, embedded_offset, stream, |
45000ea2 | 936 | original_value, options); |
e88acd96 TT |
937 | break; |
938 | ||
939 | case TYPE_CODE_PTR: | |
e8b24d9f | 940 | generic_val_print_ptr (type, embedded_offset, stream, |
81eb921a | 941 | original_value, options); |
e88acd96 TT |
942 | break; |
943 | ||
944 | case TYPE_CODE_REF: | |
aa006118 | 945 | case TYPE_CODE_RVALUE_REF: |
e8b24d9f | 946 | generic_val_print_ref (type, embedded_offset, stream, recurse, |
fe43fede | 947 | original_value, options); |
e88acd96 TT |
948 | break; |
949 | ||
950 | case TYPE_CODE_ENUM: | |
e8b24d9f | 951 | generic_val_print_enum (type, embedded_offset, stream, |
ef0bc0dd | 952 | original_value, options); |
e88acd96 TT |
953 | break; |
954 | ||
955 | case TYPE_CODE_FLAGS: | |
e8b24d9f | 956 | generic_val_print_flags (type, embedded_offset, stream, |
d93880bd | 957 | original_value, options); |
e88acd96 TT |
958 | break; |
959 | ||
960 | case TYPE_CODE_FUNC: | |
961 | case TYPE_CODE_METHOD: | |
e8b24d9f | 962 | generic_val_print_func (type, embedded_offset, address, stream, |
4a8c372f | 963 | original_value, options); |
e88acd96 TT |
964 | break; |
965 | ||
966 | case TYPE_CODE_BOOL: | |
e8b24d9f | 967 | generic_val_print_bool (type, embedded_offset, stream, |
e5bead4b | 968 | original_value, options, decorations); |
e88acd96 TT |
969 | break; |
970 | ||
971 | case TYPE_CODE_RANGE: | |
0c9c3474 | 972 | /* FIXME: create_static_range_type does not set the unsigned bit in a |
e88acd96 TT |
973 | range type (I think it probably should copy it from the |
974 | target type), so we won't print values which are too large to | |
975 | fit in a signed integer correctly. */ | |
976 | /* FIXME: Doesn't handle ranges of enums correctly. (Can't just | |
977 | print with the target type, though, because the size of our | |
978 | type and the target type might differ). */ | |
979 | ||
980 | /* FALLTHROUGH */ | |
981 | ||
982 | case TYPE_CODE_INT: | |
e8b24d9f | 983 | generic_val_print_int (type, embedded_offset, stream, |
b21b6342 | 984 | original_value, options); |
e88acd96 TT |
985 | break; |
986 | ||
987 | case TYPE_CODE_CHAR: | |
e8b24d9f | 988 | generic_val_print_char (type, unresolved_type, embedded_offset, |
385f5aff | 989 | stream, original_value, options); |
e88acd96 TT |
990 | break; |
991 | ||
992 | case TYPE_CODE_FLT: | |
e8b24d9f | 993 | generic_val_print_float (type, embedded_offset, stream, |
7784724b | 994 | original_value, options); |
e88acd96 TT |
995 | break; |
996 | ||
997 | case TYPE_CODE_DECFLOAT: | |
e8b24d9f | 998 | generic_val_print_decfloat (type, embedded_offset, stream, |
9550ae5e | 999 | original_value, options); |
e88acd96 TT |
1000 | break; |
1001 | ||
1002 | case TYPE_CODE_VOID: | |
1003 | fputs_filtered (decorations->void_name, stream); | |
1004 | break; | |
1005 | ||
1006 | case TYPE_CODE_ERROR: | |
1007 | fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type)); | |
1008 | break; | |
1009 | ||
1010 | case TYPE_CODE_UNDEF: | |
a9ff5f12 UW |
1011 | /* This happens (without TYPE_STUB set) on systems which don't use |
1012 | dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar" | |
1013 | and no complete type for struct foo in that file. */ | |
e88acd96 TT |
1014 | fprintf_filtered (stream, _("<incomplete type>")); |
1015 | break; | |
1016 | ||
1017 | case TYPE_CODE_COMPLEX: | |
e8b24d9f | 1018 | generic_val_print_complex (type, embedded_offset, stream, |
0c87c0bf | 1019 | original_value, options, decorations); |
e88acd96 TT |
1020 | break; |
1021 | ||
1022 | case TYPE_CODE_UNION: | |
1023 | case TYPE_CODE_STRUCT: | |
1024 | case TYPE_CODE_METHODPTR: | |
1025 | default: | |
1026 | error (_("Unhandled type code %d in symbol table."), | |
1027 | TYPE_CODE (type)); | |
1028 | } | |
1029 | gdb_flush (stream); | |
1030 | } | |
1031 | ||
32b72a42 | 1032 | /* Print using the given LANGUAGE the data of type TYPE located at |
e8b24d9f YQ |
1033 | VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came |
1034 | from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto | |
1035 | stdio stream STREAM according to OPTIONS. VAL is the whole object | |
1036 | that came from ADDRESS. | |
32b72a42 PA |
1037 | |
1038 | The language printers will pass down an adjusted EMBEDDED_OFFSET to | |
1039 | further helper subroutines as subfields of TYPE are printed. In | |
e8b24d9f | 1040 | such cases, VAL is passed down unadjusted, so |
32b72a42 PA |
1041 | that VAL can be queried for metadata about the contents data being |
1042 | printed, using EMBEDDED_OFFSET as an offset into VAL's contents | |
1043 | buffer. For example: "has this field been optimized out", or "I'm | |
1044 | printing an object while inspecting a traceframe; has this | |
1045 | particular piece of data been collected?". | |
1046 | ||
1047 | RECURSE indicates the amount of indentation to supply before | |
1048 | continuation lines; this amount is roughly twice the value of | |
35c0084b | 1049 | RECURSE. */ |
32b72a42 | 1050 | |
35c0084b | 1051 | void |
e8b24d9f | 1052 | val_print (struct type *type, LONGEST embedded_offset, |
79a45b7d | 1053 | CORE_ADDR address, struct ui_file *stream, int recurse, |
e8b24d9f | 1054 | struct value *val, |
79a45b7d | 1055 | const struct value_print_options *options, |
d8ca156b | 1056 | const struct language_defn *language) |
c906108c | 1057 | { |
19ca80ba | 1058 | int ret = 0; |
79a45b7d | 1059 | struct value_print_options local_opts = *options; |
c906108c | 1060 | struct type *real_type = check_typedef (type); |
79a45b7d | 1061 | |
2a998fc0 DE |
1062 | if (local_opts.prettyformat == Val_prettyformat_default) |
1063 | local_opts.prettyformat = (local_opts.prettyformat_structs | |
1064 | ? Val_prettyformat : Val_no_prettyformat); | |
c5aa993b | 1065 | |
c906108c SS |
1066 | QUIT; |
1067 | ||
1068 | /* Ensure that the type is complete and not just a stub. If the type is | |
1069 | only a stub and we can't find and substitute its complete type, then | |
1070 | print appropriate string and return. */ | |
1071 | ||
74a9bb82 | 1072 | if (TYPE_STUB (real_type)) |
c906108c | 1073 | { |
0e03807e | 1074 | fprintf_filtered (stream, _("<incomplete type>")); |
c906108c | 1075 | gdb_flush (stream); |
35c0084b | 1076 | return; |
c906108c | 1077 | } |
c5aa993b | 1078 | |
0e03807e | 1079 | if (!valprint_check_validity (stream, real_type, embedded_offset, val)) |
35c0084b | 1080 | return; |
0e03807e | 1081 | |
a6bac58e TT |
1082 | if (!options->raw) |
1083 | { | |
668e1674 | 1084 | ret = apply_ext_lang_val_pretty_printer (type, embedded_offset, |
6dddc817 DE |
1085 | address, stream, recurse, |
1086 | val, options, language); | |
a6bac58e | 1087 | if (ret) |
35c0084b | 1088 | return; |
a6bac58e TT |
1089 | } |
1090 | ||
1091 | /* Handle summary mode. If the value is a scalar, print it; | |
1092 | otherwise, print an ellipsis. */ | |
6211c335 | 1093 | if (options->summary && !val_print_scalar_type_p (type)) |
a6bac58e TT |
1094 | { |
1095 | fprintf_filtered (stream, "..."); | |
35c0084b | 1096 | return; |
a6bac58e TT |
1097 | } |
1098 | ||
492d29ea | 1099 | TRY |
19ca80ba | 1100 | { |
e8b24d9f | 1101 | language->la_val_print (type, embedded_offset, address, |
d3eab38a TT |
1102 | stream, recurse, val, |
1103 | &local_opts); | |
19ca80ba | 1104 | } |
492d29ea PA |
1105 | CATCH (except, RETURN_MASK_ERROR) |
1106 | { | |
1107 | fprintf_filtered (stream, _("<error reading variable>")); | |
1108 | } | |
1109 | END_CATCH | |
c906108c SS |
1110 | } |
1111 | ||
806048c6 | 1112 | /* Check whether the value VAL is printable. Return 1 if it is; |
6501578c YQ |
1113 | return 0 and print an appropriate error message to STREAM according to |
1114 | OPTIONS if it is not. */ | |
c906108c | 1115 | |
806048c6 | 1116 | static int |
6501578c YQ |
1117 | value_check_printable (struct value *val, struct ui_file *stream, |
1118 | const struct value_print_options *options) | |
c906108c SS |
1119 | { |
1120 | if (val == 0) | |
1121 | { | |
806048c6 | 1122 | fprintf_filtered (stream, _("<address of value unknown>")); |
c906108c SS |
1123 | return 0; |
1124 | } | |
806048c6 | 1125 | |
0e03807e | 1126 | if (value_entirely_optimized_out (val)) |
c906108c | 1127 | { |
6211c335 | 1128 | if (options->summary && !val_print_scalar_type_p (value_type (val))) |
6501578c YQ |
1129 | fprintf_filtered (stream, "..."); |
1130 | else | |
901461f8 | 1131 | val_print_optimized_out (val, stream); |
c906108c SS |
1132 | return 0; |
1133 | } | |
806048c6 | 1134 | |
eebc056c AB |
1135 | if (value_entirely_unavailable (val)) |
1136 | { | |
1137 | if (options->summary && !val_print_scalar_type_p (value_type (val))) | |
1138 | fprintf_filtered (stream, "..."); | |
1139 | else | |
1140 | val_print_unavailable (stream); | |
1141 | return 0; | |
1142 | } | |
1143 | ||
bc3b79fd TJB |
1144 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION) |
1145 | { | |
1146 | fprintf_filtered (stream, _("<internal function %s>"), | |
1147 | value_internal_function_name (val)); | |
1148 | return 0; | |
1149 | } | |
1150 | ||
3f2f83dd KB |
1151 | if (type_not_associated (value_type (val))) |
1152 | { | |
1153 | val_print_not_associated (stream); | |
1154 | return 0; | |
1155 | } | |
1156 | ||
1157 | if (type_not_allocated (value_type (val))) | |
1158 | { | |
1159 | val_print_not_allocated (stream); | |
1160 | return 0; | |
1161 | } | |
1162 | ||
806048c6 DJ |
1163 | return 1; |
1164 | } | |
1165 | ||
d8ca156b | 1166 | /* Print using the given LANGUAGE the value VAL onto stream STREAM according |
79a45b7d | 1167 | to OPTIONS. |
806048c6 | 1168 | |
806048c6 DJ |
1169 | This is a preferable interface to val_print, above, because it uses |
1170 | GDB's value mechanism. */ | |
1171 | ||
a1f5dd1b | 1172 | void |
79a45b7d TT |
1173 | common_val_print (struct value *val, struct ui_file *stream, int recurse, |
1174 | const struct value_print_options *options, | |
d8ca156b | 1175 | const struct language_defn *language) |
806048c6 | 1176 | { |
6501578c | 1177 | if (!value_check_printable (val, stream, options)) |
a1f5dd1b | 1178 | return; |
806048c6 | 1179 | |
0c3acc09 JB |
1180 | if (language->la_language == language_ada) |
1181 | /* The value might have a dynamic type, which would cause trouble | |
1182 | below when trying to extract the value contents (since the value | |
1183 | size is determined from the type size which is unknown). So | |
1184 | get a fixed representation of our value. */ | |
1185 | val = ada_to_fixed_value (val); | |
1186 | ||
7d45f3df YQ |
1187 | if (value_lazy (val)) |
1188 | value_fetch_lazy (val); | |
1189 | ||
e8b24d9f | 1190 | val_print (value_type (val), |
a1f5dd1b TT |
1191 | value_embedded_offset (val), value_address (val), |
1192 | stream, recurse, | |
1193 | val, options, language); | |
806048c6 DJ |
1194 | } |
1195 | ||
7348c5e1 | 1196 | /* Print on stream STREAM the value VAL according to OPTIONS. The value |
8e069a98 | 1197 | is printed using the current_language syntax. */ |
7348c5e1 | 1198 | |
8e069a98 | 1199 | void |
79a45b7d TT |
1200 | value_print (struct value *val, struct ui_file *stream, |
1201 | const struct value_print_options *options) | |
806048c6 | 1202 | { |
6501578c | 1203 | if (!value_check_printable (val, stream, options)) |
8e069a98 | 1204 | return; |
806048c6 | 1205 | |
a6bac58e TT |
1206 | if (!options->raw) |
1207 | { | |
6dddc817 DE |
1208 | int r |
1209 | = apply_ext_lang_val_pretty_printer (value_type (val), | |
6dddc817 DE |
1210 | value_embedded_offset (val), |
1211 | value_address (val), | |
1212 | stream, 0, | |
1213 | val, options, current_language); | |
a109c7c1 | 1214 | |
a6bac58e | 1215 | if (r) |
8e069a98 | 1216 | return; |
a6bac58e TT |
1217 | } |
1218 | ||
8e069a98 | 1219 | LA_VALUE_PRINT (val, stream, options); |
c906108c SS |
1220 | } |
1221 | ||
81516450 | 1222 | static void |
4f2aea11 MK |
1223 | val_print_type_code_flags (struct type *type, const gdb_byte *valaddr, |
1224 | struct ui_file *stream) | |
1225 | { | |
befae759 | 1226 | ULONGEST val = unpack_long (type, valaddr); |
81516450 DE |
1227 | int field, nfields = TYPE_NFIELDS (type); |
1228 | struct gdbarch *gdbarch = get_type_arch (type); | |
1229 | struct type *bool_type = builtin_type (gdbarch)->builtin_bool; | |
4f2aea11 | 1230 | |
81516450 DE |
1231 | fputs_filtered ("[", stream); |
1232 | for (field = 0; field < nfields; field++) | |
4f2aea11 | 1233 | { |
81516450 | 1234 | if (TYPE_FIELD_NAME (type, field)[0] != '\0') |
4f2aea11 | 1235 | { |
81516450 DE |
1236 | struct type *field_type = TYPE_FIELD_TYPE (type, field); |
1237 | ||
1238 | if (field_type == bool_type | |
1239 | /* We require boolean types here to be one bit wide. This is a | |
1240 | problematic place to notify the user of an internal error | |
1241 | though. Instead just fall through and print the field as an | |
1242 | int. */ | |
1243 | && TYPE_FIELD_BITSIZE (type, field) == 1) | |
1244 | { | |
1245 | if (val & ((ULONGEST)1 << TYPE_FIELD_BITPOS (type, field))) | |
1246 | fprintf_filtered (stream, " %s", | |
1247 | TYPE_FIELD_NAME (type, field)); | |
1248 | } | |
4f2aea11 | 1249 | else |
81516450 DE |
1250 | { |
1251 | unsigned field_len = TYPE_FIELD_BITSIZE (type, field); | |
1252 | ULONGEST field_val | |
1253 | = val >> (TYPE_FIELD_BITPOS (type, field) - field_len + 1); | |
1254 | ||
1255 | if (field_len < sizeof (ULONGEST) * TARGET_CHAR_BIT) | |
1256 | field_val &= ((ULONGEST) 1 << field_len) - 1; | |
1257 | fprintf_filtered (stream, " %s=", | |
1258 | TYPE_FIELD_NAME (type, field)); | |
1259 | if (TYPE_CODE (field_type) == TYPE_CODE_ENUM) | |
1260 | generic_val_print_enum_1 (field_type, field_val, stream); | |
1261 | else | |
1262 | print_longest (stream, 'd', 0, field_val); | |
1263 | } | |
4f2aea11 MK |
1264 | } |
1265 | } | |
81516450 | 1266 | fputs_filtered (" ]", stream); |
19c37f24 | 1267 | } |
ab2188aa PA |
1268 | |
1269 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
1270 | according to OPTIONS and SIZE on STREAM. Format i is not supported | |
1271 | at this level. | |
1272 | ||
1273 | This is how the elements of an array or structure are printed | |
1274 | with a format. */ | |
ab2188aa PA |
1275 | |
1276 | void | |
1277 | val_print_scalar_formatted (struct type *type, | |
e8b24d9f YQ |
1278 | LONGEST embedded_offset, |
1279 | struct value *val, | |
ab2188aa PA |
1280 | const struct value_print_options *options, |
1281 | int size, | |
1282 | struct ui_file *stream) | |
1283 | { | |
3ae385af SM |
1284 | struct gdbarch *arch = get_type_arch (type); |
1285 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
1286 | ||
ab2188aa | 1287 | gdb_assert (val != NULL); |
ab2188aa PA |
1288 | |
1289 | /* If we get here with a string format, try again without it. Go | |
1290 | all the way back to the language printers, which may call us | |
1291 | again. */ | |
1292 | if (options->format == 's') | |
1293 | { | |
1294 | struct value_print_options opts = *options; | |
1295 | opts.format = 0; | |
1296 | opts.deref_ref = 0; | |
e8b24d9f | 1297 | val_print (type, embedded_offset, 0, stream, 0, val, &opts, |
ab2188aa PA |
1298 | current_language); |
1299 | return; | |
1300 | } | |
1301 | ||
e8b24d9f YQ |
1302 | /* value_contents_for_printing fetches all VAL's contents. They are |
1303 | needed to check whether VAL is optimized-out or unavailable | |
1304 | below. */ | |
1305 | const gdb_byte *valaddr = value_contents_for_printing (val); | |
1306 | ||
ab2188aa PA |
1307 | /* A scalar object that does not have all bits available can't be |
1308 | printed, because all bits contribute to its representation. */ | |
9a0dc9e3 PA |
1309 | if (value_bits_any_optimized_out (val, |
1310 | TARGET_CHAR_BIT * embedded_offset, | |
1311 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
901461f8 | 1312 | val_print_optimized_out (val, stream); |
4e07d55f PA |
1313 | else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) |
1314 | val_print_unavailable (stream); | |
ab2188aa | 1315 | else |
3ae385af | 1316 | print_scalar_formatted (valaddr + embedded_offset * unit_size, type, |
ab2188aa | 1317 | options, size, stream); |
4f2aea11 MK |
1318 | } |
1319 | ||
c906108c SS |
1320 | /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. |
1321 | The raison d'etre of this function is to consolidate printing of | |
581e13c1 | 1322 | LONG_LONG's into this one function. The format chars b,h,w,g are |
bb599908 | 1323 | from print_scalar_formatted(). Numbers are printed using C |
581e13c1 | 1324 | format. |
bb599908 PH |
1325 | |
1326 | USE_C_FORMAT means to use C format in all cases. Without it, | |
1327 | 'o' and 'x' format do not include the standard C radix prefix | |
1328 | (leading 0 or 0x). | |
1329 | ||
1330 | Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL | |
1331 | and was intended to request formating according to the current | |
1332 | language and would be used for most integers that GDB prints. The | |
1333 | exceptional cases were things like protocols where the format of | |
1334 | the integer is a protocol thing, not a user-visible thing). The | |
1335 | parameter remains to preserve the information of what things might | |
1336 | be printed with language-specific format, should we ever resurrect | |
581e13c1 | 1337 | that capability. */ |
c906108c SS |
1338 | |
1339 | void | |
bb599908 | 1340 | print_longest (struct ui_file *stream, int format, int use_c_format, |
fba45db2 | 1341 | LONGEST val_long) |
c906108c | 1342 | { |
2bfb72ee AC |
1343 | const char *val; |
1344 | ||
c906108c SS |
1345 | switch (format) |
1346 | { | |
1347 | case 'd': | |
bb599908 | 1348 | val = int_string (val_long, 10, 1, 0, 1); break; |
c906108c | 1349 | case 'u': |
bb599908 | 1350 | val = int_string (val_long, 10, 0, 0, 1); break; |
c906108c | 1351 | case 'x': |
bb599908 | 1352 | val = int_string (val_long, 16, 0, 0, use_c_format); break; |
c906108c | 1353 | case 'b': |
bb599908 | 1354 | val = int_string (val_long, 16, 0, 2, 1); break; |
c906108c | 1355 | case 'h': |
bb599908 | 1356 | val = int_string (val_long, 16, 0, 4, 1); break; |
c906108c | 1357 | case 'w': |
bb599908 | 1358 | val = int_string (val_long, 16, 0, 8, 1); break; |
c906108c | 1359 | case 'g': |
bb599908 | 1360 | val = int_string (val_long, 16, 0, 16, 1); break; |
c906108c SS |
1361 | break; |
1362 | case 'o': | |
bb599908 | 1363 | val = int_string (val_long, 8, 0, 0, use_c_format); break; |
c906108c | 1364 | default: |
3e43a32a MS |
1365 | internal_error (__FILE__, __LINE__, |
1366 | _("failed internal consistency check")); | |
bb599908 | 1367 | } |
2bfb72ee | 1368 | fputs_filtered (val, stream); |
c906108c SS |
1369 | } |
1370 | ||
c906108c SS |
1371 | /* This used to be a macro, but I don't think it is called often enough |
1372 | to merit such treatment. */ | |
1373 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of | |
1374 | arguments to a function, number in a value history, register number, etc.) | |
1375 | where the value must not be larger than can fit in an int. */ | |
1376 | ||
1377 | int | |
fba45db2 | 1378 | longest_to_int (LONGEST arg) |
c906108c | 1379 | { |
581e13c1 | 1380 | /* Let the compiler do the work. */ |
c906108c SS |
1381 | int rtnval = (int) arg; |
1382 | ||
581e13c1 | 1383 | /* Check for overflows or underflows. */ |
c906108c SS |
1384 | if (sizeof (LONGEST) > sizeof (int)) |
1385 | { | |
1386 | if (rtnval != arg) | |
1387 | { | |
8a3fe4f8 | 1388 | error (_("Value out of range.")); |
c906108c SS |
1389 | } |
1390 | } | |
1391 | return (rtnval); | |
1392 | } | |
1393 | ||
a73c86fb AC |
1394 | /* Print a floating point value of type TYPE (not always a |
1395 | TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */ | |
c906108c SS |
1396 | |
1397 | void | |
fc1a4b47 | 1398 | print_floating (const gdb_byte *valaddr, struct type *type, |
c84141d6 | 1399 | struct ui_file *stream) |
c906108c SS |
1400 | { |
1401 | DOUBLEST doub; | |
1402 | int inv; | |
a73c86fb | 1403 | const struct floatformat *fmt = NULL; |
c906108c | 1404 | unsigned len = TYPE_LENGTH (type); |
20389057 | 1405 | enum float_kind kind; |
c5aa993b | 1406 | |
a73c86fb AC |
1407 | /* If it is a floating-point, check for obvious problems. */ |
1408 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
1409 | fmt = floatformat_from_type (type); | |
20389057 | 1410 | if (fmt != NULL) |
39424bef | 1411 | { |
20389057 DJ |
1412 | kind = floatformat_classify (fmt, valaddr); |
1413 | if (kind == float_nan) | |
1414 | { | |
1415 | if (floatformat_is_negative (fmt, valaddr)) | |
1416 | fprintf_filtered (stream, "-"); | |
1417 | fprintf_filtered (stream, "nan("); | |
1418 | fputs_filtered ("0x", stream); | |
1419 | fputs_filtered (floatformat_mantissa (fmt, valaddr), stream); | |
1420 | fprintf_filtered (stream, ")"); | |
1421 | return; | |
1422 | } | |
1423 | else if (kind == float_infinite) | |
1424 | { | |
1425 | if (floatformat_is_negative (fmt, valaddr)) | |
1426 | fputs_filtered ("-", stream); | |
1427 | fputs_filtered ("inf", stream); | |
1428 | return; | |
1429 | } | |
7355ddba | 1430 | } |
c906108c | 1431 | |
a73c86fb AC |
1432 | /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating() |
1433 | isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double | |
1434 | needs to be used as that takes care of any necessary type | |
1435 | conversions. Such conversions are of course direct to DOUBLEST | |
1436 | and disregard any possible target floating point limitations. | |
1437 | For instance, a u64 would be converted and displayed exactly on a | |
1438 | host with 80 bit DOUBLEST but with loss of information on a host | |
1439 | with 64 bit DOUBLEST. */ | |
c2f05ac9 | 1440 | |
c906108c SS |
1441 | doub = unpack_double (type, valaddr, &inv); |
1442 | if (inv) | |
1443 | { | |
1444 | fprintf_filtered (stream, "<invalid float value>"); | |
1445 | return; | |
1446 | } | |
1447 | ||
39424bef MK |
1448 | /* FIXME: kettenis/2001-01-20: The following code makes too much |
1449 | assumptions about the host and target floating point format. */ | |
1450 | ||
a73c86fb | 1451 | /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may |
c41b8590 | 1452 | not necessarily be a TYPE_CODE_FLT, the below ignores that and |
a73c86fb AC |
1453 | instead uses the type's length to determine the precision of the |
1454 | floating-point value being printed. */ | |
c2f05ac9 | 1455 | |
c906108c | 1456 | if (len < sizeof (double)) |
c5aa993b | 1457 | fprintf_filtered (stream, "%.9g", (double) doub); |
c906108c | 1458 | else if (len == sizeof (double)) |
c5aa993b | 1459 | fprintf_filtered (stream, "%.17g", (double) doub); |
c906108c SS |
1460 | else |
1461 | #ifdef PRINTF_HAS_LONG_DOUBLE | |
1462 | fprintf_filtered (stream, "%.35Lg", doub); | |
1463 | #else | |
39424bef MK |
1464 | /* This at least wins with values that are representable as |
1465 | doubles. */ | |
c906108c SS |
1466 | fprintf_filtered (stream, "%.17g", (double) doub); |
1467 | #endif | |
1468 | } | |
1469 | ||
7678ef8f TJB |
1470 | void |
1471 | print_decimal_floating (const gdb_byte *valaddr, struct type *type, | |
1472 | struct ui_file *stream) | |
1473 | { | |
e17a4113 | 1474 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
7678ef8f TJB |
1475 | unsigned len = TYPE_LENGTH (type); |
1476 | ||
3b4b2f16 UW |
1477 | std::string str = decimal_to_string (valaddr, len, byte_order); |
1478 | fputs_filtered (str.c_str (), stream); | |
7678ef8f TJB |
1479 | } |
1480 | ||
c5aa993b | 1481 | void |
fc1a4b47 | 1482 | print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 | 1483 | unsigned len, enum bfd_endian byte_order, bool zero_pad) |
c906108c | 1484 | { |
fc1a4b47 | 1485 | const gdb_byte *p; |
745b8ca0 | 1486 | unsigned int i; |
c5aa993b | 1487 | int b; |
30a25466 | 1488 | bool seen_a_one = false; |
c906108c SS |
1489 | |
1490 | /* Declared "int" so it will be signed. | |
581e13c1 MS |
1491 | This ensures that right shift will shift in zeros. */ |
1492 | ||
c5aa993b | 1493 | const int mask = 0x080; |
c906108c | 1494 | |
d44e8473 | 1495 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1496 | { |
1497 | for (p = valaddr; | |
1498 | p < valaddr + len; | |
1499 | p++) | |
1500 | { | |
c5aa993b | 1501 | /* Every byte has 8 binary characters; peel off |
581e13c1 MS |
1502 | and print from the MSB end. */ |
1503 | ||
d3abe1c8 | 1504 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1505 | { |
1506 | if (*p & (mask >> i)) | |
30a25466 | 1507 | b = '1'; |
c5aa993b | 1508 | else |
30a25466 | 1509 | b = '0'; |
c5aa993b | 1510 | |
30a25466 TT |
1511 | if (zero_pad || seen_a_one || b == '1') |
1512 | fputc_filtered (b, stream); | |
1513 | if (b == '1') | |
1514 | seen_a_one = true; | |
c5aa993b | 1515 | } |
c906108c SS |
1516 | } |
1517 | } | |
1518 | else | |
1519 | { | |
1520 | for (p = valaddr + len - 1; | |
1521 | p >= valaddr; | |
1522 | p--) | |
1523 | { | |
d3abe1c8 | 1524 | for (i = 0; i < (HOST_CHAR_BIT * sizeof (*p)); i++) |
c5aa993b JM |
1525 | { |
1526 | if (*p & (mask >> i)) | |
30a25466 | 1527 | b = '1'; |
c5aa993b | 1528 | else |
30a25466 | 1529 | b = '0'; |
c5aa993b | 1530 | |
30a25466 TT |
1531 | if (zero_pad || seen_a_one || b == '1') |
1532 | fputc_filtered (b, stream); | |
1533 | if (b == '1') | |
1534 | seen_a_one = true; | |
c5aa993b | 1535 | } |
c906108c SS |
1536 | } |
1537 | } | |
30a25466 TT |
1538 | |
1539 | /* When not zero-padding, ensure that something is printed when the | |
1540 | input is 0. */ | |
1541 | if (!zero_pad && !seen_a_one) | |
1542 | fputc_filtered ('0', stream); | |
1543 | } | |
1544 | ||
1545 | /* A helper for print_octal_chars that emits a single octal digit, | |
1546 | optionally suppressing it if is zero and updating SEEN_A_ONE. */ | |
1547 | ||
1548 | static void | |
1549 | emit_octal_digit (struct ui_file *stream, bool *seen_a_one, int digit) | |
1550 | { | |
1551 | if (*seen_a_one || digit != 0) | |
1552 | fprintf_filtered (stream, "%o", digit); | |
1553 | if (digit != 0) | |
1554 | *seen_a_one = true; | |
c906108c SS |
1555 | } |
1556 | ||
1557 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
1558 | Print it in octal on stream or format it in buf. */ |
1559 | ||
c906108c | 1560 | void |
fc1a4b47 | 1561 | print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1562 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1563 | { |
fc1a4b47 | 1564 | const gdb_byte *p; |
c906108c | 1565 | unsigned char octa1, octa2, octa3, carry; |
c5aa993b JM |
1566 | int cycle; |
1567 | ||
c906108c SS |
1568 | /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track |
1569 | * the extra bits, which cycle every three bytes: | |
1570 | * | |
1571 | * Byte side: 0 1 2 3 | |
1572 | * | | | | | |
1573 | * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 | | |
1574 | * | |
1575 | * Octal side: 0 1 carry 3 4 carry ... | |
1576 | * | |
1577 | * Cycle number: 0 1 2 | |
1578 | * | |
1579 | * But of course we are printing from the high side, so we have to | |
1580 | * figure out where in the cycle we are so that we end up with no | |
1581 | * left over bits at the end. | |
1582 | */ | |
1583 | #define BITS_IN_OCTAL 3 | |
1584 | #define HIGH_ZERO 0340 | |
d6382fff | 1585 | #define LOW_ZERO 0034 |
c906108c | 1586 | #define CARRY_ZERO 0003 |
d6382fff TT |
1587 | static_assert (HIGH_ZERO + LOW_ZERO + CARRY_ZERO == 0xff, |
1588 | "cycle zero constants are wrong"); | |
c906108c SS |
1589 | #define HIGH_ONE 0200 |
1590 | #define MID_ONE 0160 | |
1591 | #define LOW_ONE 0016 | |
1592 | #define CARRY_ONE 0001 | |
d6382fff TT |
1593 | static_assert (HIGH_ONE + MID_ONE + LOW_ONE + CARRY_ONE == 0xff, |
1594 | "cycle one constants are wrong"); | |
c906108c SS |
1595 | #define HIGH_TWO 0300 |
1596 | #define MID_TWO 0070 | |
1597 | #define LOW_TWO 0007 | |
d6382fff TT |
1598 | static_assert (HIGH_TWO + MID_TWO + LOW_TWO == 0xff, |
1599 | "cycle two constants are wrong"); | |
c906108c SS |
1600 | |
1601 | /* For 32 we start in cycle 2, with two bits and one bit carry; | |
581e13c1 MS |
1602 | for 64 in cycle in cycle 1, with one bit and a two bit carry. */ |
1603 | ||
d3abe1c8 | 1604 | cycle = (len * HOST_CHAR_BIT) % BITS_IN_OCTAL; |
c906108c | 1605 | carry = 0; |
c5aa993b | 1606 | |
bb599908 | 1607 | fputs_filtered ("0", stream); |
30a25466 | 1608 | bool seen_a_one = false; |
d44e8473 | 1609 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1610 | { |
1611 | for (p = valaddr; | |
1612 | p < valaddr + len; | |
1613 | p++) | |
1614 | { | |
c5aa993b JM |
1615 | switch (cycle) |
1616 | { | |
1617 | case 0: | |
581e13c1 MS |
1618 | /* No carry in, carry out two bits. */ |
1619 | ||
c5aa993b JM |
1620 | octa1 = (HIGH_ZERO & *p) >> 5; |
1621 | octa2 = (LOW_ZERO & *p) >> 2; | |
1622 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1623 | emit_octal_digit (stream, &seen_a_one, octa1); |
1624 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1625 | break; |
1626 | ||
1627 | case 1: | |
581e13c1 MS |
1628 | /* Carry in two bits, carry out one bit. */ |
1629 | ||
c5aa993b JM |
1630 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1631 | octa2 = (MID_ONE & *p) >> 4; | |
1632 | octa3 = (LOW_ONE & *p) >> 1; | |
1633 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1634 | emit_octal_digit (stream, &seen_a_one, octa1); |
1635 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1636 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1637 | break; |
1638 | ||
1639 | case 2: | |
581e13c1 MS |
1640 | /* Carry in one bit, no carry out. */ |
1641 | ||
c5aa993b JM |
1642 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1643 | octa2 = (MID_TWO & *p) >> 3; | |
1644 | octa3 = (LOW_TWO & *p); | |
1645 | carry = 0; | |
30a25466 TT |
1646 | emit_octal_digit (stream, &seen_a_one, octa1); |
1647 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1648 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1649 | break; |
1650 | ||
1651 | default: | |
8a3fe4f8 | 1652 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1653 | } |
1654 | ||
1655 | cycle++; | |
1656 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1657 | } |
1658 | } | |
1659 | else | |
1660 | { | |
1661 | for (p = valaddr + len - 1; | |
1662 | p >= valaddr; | |
1663 | p--) | |
1664 | { | |
c5aa993b JM |
1665 | switch (cycle) |
1666 | { | |
1667 | case 0: | |
1668 | /* Carry out, no carry in */ | |
581e13c1 | 1669 | |
c5aa993b JM |
1670 | octa1 = (HIGH_ZERO & *p) >> 5; |
1671 | octa2 = (LOW_ZERO & *p) >> 2; | |
1672 | carry = (CARRY_ZERO & *p); | |
30a25466 TT |
1673 | emit_octal_digit (stream, &seen_a_one, octa1); |
1674 | emit_octal_digit (stream, &seen_a_one, octa2); | |
c5aa993b JM |
1675 | break; |
1676 | ||
1677 | case 1: | |
1678 | /* Carry in, carry out */ | |
581e13c1 | 1679 | |
c5aa993b JM |
1680 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
1681 | octa2 = (MID_ONE & *p) >> 4; | |
1682 | octa3 = (LOW_ONE & *p) >> 1; | |
1683 | carry = (CARRY_ONE & *p); | |
30a25466 TT |
1684 | emit_octal_digit (stream, &seen_a_one, octa1); |
1685 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1686 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1687 | break; |
1688 | ||
1689 | case 2: | |
1690 | /* Carry in, no carry out */ | |
581e13c1 | 1691 | |
c5aa993b JM |
1692 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
1693 | octa2 = (MID_TWO & *p) >> 3; | |
1694 | octa3 = (LOW_TWO & *p); | |
1695 | carry = 0; | |
30a25466 TT |
1696 | emit_octal_digit (stream, &seen_a_one, octa1); |
1697 | emit_octal_digit (stream, &seen_a_one, octa2); | |
1698 | emit_octal_digit (stream, &seen_a_one, octa3); | |
c5aa993b JM |
1699 | break; |
1700 | ||
1701 | default: | |
8a3fe4f8 | 1702 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
1703 | } |
1704 | ||
1705 | cycle++; | |
1706 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
1707 | } |
1708 | } | |
1709 | ||
c906108c SS |
1710 | } |
1711 | ||
4ac0cb1c TT |
1712 | /* Possibly negate the integer represented by BYTES. It contains LEN |
1713 | bytes in the specified byte order. If the integer is negative, | |
1714 | copy it into OUT_VEC, negate it, and return true. Otherwise, do | |
1715 | nothing and return false. */ | |
1716 | ||
1717 | static bool | |
1718 | maybe_negate_by_bytes (const gdb_byte *bytes, unsigned len, | |
1719 | enum bfd_endian byte_order, | |
d5722aa2 | 1720 | gdb::byte_vector *out_vec) |
4ac0cb1c TT |
1721 | { |
1722 | gdb_byte sign_byte; | |
1723 | if (byte_order == BFD_ENDIAN_BIG) | |
1724 | sign_byte = bytes[0]; | |
1725 | else | |
1726 | sign_byte = bytes[len - 1]; | |
1727 | if ((sign_byte & 0x80) == 0) | |
1728 | return false; | |
1729 | ||
1730 | out_vec->resize (len); | |
1731 | ||
1732 | /* Compute -x == 1 + ~x. */ | |
1733 | if (byte_order == BFD_ENDIAN_LITTLE) | |
1734 | { | |
1735 | unsigned carry = 1; | |
1736 | for (unsigned i = 0; i < len; ++i) | |
1737 | { | |
1738 | unsigned tem = (0xff & ~bytes[i]) + carry; | |
1739 | (*out_vec)[i] = tem & 0xff; | |
1740 | carry = tem / 256; | |
1741 | } | |
1742 | } | |
1743 | else | |
1744 | { | |
1745 | unsigned carry = 1; | |
1746 | for (unsigned i = len; i > 0; --i) | |
1747 | { | |
1748 | unsigned tem = (0xff & ~bytes[i - 1]) + carry; | |
1749 | (*out_vec)[i - 1] = tem & 0xff; | |
1750 | carry = tem / 256; | |
1751 | } | |
1752 | } | |
1753 | ||
1754 | return true; | |
1755 | } | |
1756 | ||
c906108c | 1757 | /* VALADDR points to an integer of LEN bytes. |
581e13c1 MS |
1758 | Print it in decimal on stream or format it in buf. */ |
1759 | ||
c906108c | 1760 | void |
fc1a4b47 | 1761 | print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
4ac0cb1c TT |
1762 | unsigned len, bool is_signed, |
1763 | enum bfd_endian byte_order) | |
c906108c SS |
1764 | { |
1765 | #define TEN 10 | |
c5aa993b | 1766 | #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */ |
c906108c SS |
1767 | #define CARRY_LEFT( x ) ((x) % TEN) |
1768 | #define SHIFT( x ) ((x) << 4) | |
c906108c SS |
1769 | #define LOW_NIBBLE( x ) ( (x) & 0x00F) |
1770 | #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4) | |
1771 | ||
fc1a4b47 | 1772 | const gdb_byte *p; |
c5aa993b JM |
1773 | int carry; |
1774 | int decimal_len; | |
1775 | int i, j, decimal_digits; | |
1776 | int dummy; | |
1777 | int flip; | |
1778 | ||
d5722aa2 | 1779 | gdb::byte_vector negated_bytes; |
4ac0cb1c TT |
1780 | if (is_signed |
1781 | && maybe_negate_by_bytes (valaddr, len, byte_order, &negated_bytes)) | |
1782 | { | |
1783 | fputs_filtered ("-", stream); | |
1784 | valaddr = negated_bytes.data (); | |
1785 | } | |
1786 | ||
c906108c | 1787 | /* Base-ten number is less than twice as many digits |
581e13c1 MS |
1788 | as the base 16 number, which is 2 digits per byte. */ |
1789 | ||
c906108c | 1790 | decimal_len = len * 2 * 2; |
30a25466 | 1791 | std::vector<unsigned char> digits (decimal_len, 0); |
c906108c | 1792 | |
c906108c SS |
1793 | /* Ok, we have an unknown number of bytes of data to be printed in |
1794 | * decimal. | |
1795 | * | |
1796 | * Given a hex number (in nibbles) as XYZ, we start by taking X and | |
1797 | * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply | |
1798 | * the nibbles by 16, add Y and re-decimalize. Repeat with Z. | |
1799 | * | |
1800 | * The trick is that "digits" holds a base-10 number, but sometimes | |
581e13c1 | 1801 | * the individual digits are > 10. |
c906108c SS |
1802 | * |
1803 | * Outer loop is per nibble (hex digit) of input, from MSD end to | |
1804 | * LSD end. | |
1805 | */ | |
c5aa993b | 1806 | decimal_digits = 0; /* Number of decimal digits so far */ |
d44e8473 | 1807 | p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1; |
c906108c | 1808 | flip = 0; |
d44e8473 | 1809 | while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr)) |
c5aa993b | 1810 | { |
c906108c SS |
1811 | /* |
1812 | * Multiply current base-ten number by 16 in place. | |
1813 | * Each digit was between 0 and 9, now is between | |
1814 | * 0 and 144. | |
1815 | */ | |
c5aa993b JM |
1816 | for (j = 0; j < decimal_digits; j++) |
1817 | { | |
1818 | digits[j] = SHIFT (digits[j]); | |
1819 | } | |
1820 | ||
c906108c SS |
1821 | /* Take the next nibble off the input and add it to what |
1822 | * we've got in the LSB position. Bottom 'digit' is now | |
1823 | * between 0 and 159. | |
1824 | * | |
1825 | * "flip" is used to run this loop twice for each byte. | |
1826 | */ | |
c5aa993b JM |
1827 | if (flip == 0) |
1828 | { | |
581e13c1 MS |
1829 | /* Take top nibble. */ |
1830 | ||
c5aa993b JM |
1831 | digits[0] += HIGH_NIBBLE (*p); |
1832 | flip = 1; | |
1833 | } | |
1834 | else | |
1835 | { | |
581e13c1 MS |
1836 | /* Take low nibble and bump our pointer "p". */ |
1837 | ||
c5aa993b | 1838 | digits[0] += LOW_NIBBLE (*p); |
d44e8473 MD |
1839 | if (byte_order == BFD_ENDIAN_BIG) |
1840 | p++; | |
1841 | else | |
1842 | p--; | |
c5aa993b JM |
1843 | flip = 0; |
1844 | } | |
c906108c SS |
1845 | |
1846 | /* Re-decimalize. We have to do this often enough | |
1847 | * that we don't overflow, but once per nibble is | |
1848 | * overkill. Easier this way, though. Note that the | |
1849 | * carry is often larger than 10 (e.g. max initial | |
1850 | * carry out of lowest nibble is 15, could bubble all | |
1851 | * the way up greater than 10). So we have to do | |
1852 | * the carrying beyond the last current digit. | |
1853 | */ | |
1854 | carry = 0; | |
c5aa993b JM |
1855 | for (j = 0; j < decimal_len - 1; j++) |
1856 | { | |
1857 | digits[j] += carry; | |
1858 | ||
1859 | /* "/" won't handle an unsigned char with | |
1860 | * a value that if signed would be negative. | |
1861 | * So extend to longword int via "dummy". | |
1862 | */ | |
1863 | dummy = digits[j]; | |
1864 | carry = CARRY_OUT (dummy); | |
1865 | digits[j] = CARRY_LEFT (dummy); | |
1866 | ||
1867 | if (j >= decimal_digits && carry == 0) | |
1868 | { | |
1869 | /* | |
1870 | * All higher digits are 0 and we | |
1871 | * no longer have a carry. | |
1872 | * | |
1873 | * Note: "j" is 0-based, "decimal_digits" is | |
1874 | * 1-based. | |
1875 | */ | |
1876 | decimal_digits = j + 1; | |
1877 | break; | |
1878 | } | |
1879 | } | |
1880 | } | |
c906108c SS |
1881 | |
1882 | /* Ok, now "digits" is the decimal representation, with | |
581e13c1 MS |
1883 | the "decimal_digits" actual digits. Print! */ |
1884 | ||
30a25466 TT |
1885 | for (i = decimal_digits - 1; i > 0 && digits[i] == 0; --i) |
1886 | ; | |
1887 | ||
1888 | for (; i >= 0; i--) | |
c5aa993b JM |
1889 | { |
1890 | fprintf_filtered (stream, "%1d", digits[i]); | |
1891 | } | |
c906108c SS |
1892 | } |
1893 | ||
1894 | /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ | |
1895 | ||
6b9acc27 | 1896 | void |
fc1a4b47 | 1897 | print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr, |
30a25466 TT |
1898 | unsigned len, enum bfd_endian byte_order, |
1899 | bool zero_pad) | |
c906108c | 1900 | { |
fc1a4b47 | 1901 | const gdb_byte *p; |
c906108c | 1902 | |
bb599908 | 1903 | fputs_filtered ("0x", stream); |
d44e8473 | 1904 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c | 1905 | { |
30a25466 TT |
1906 | p = valaddr; |
1907 | ||
1908 | if (!zero_pad) | |
1909 | { | |
1910 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1911 | single byte at the end. */ | |
1912 | for (; p < valaddr + len - 1 && !*p; ++p) | |
1913 | ; | |
1914 | } | |
1915 | ||
1916 | const gdb_byte *first = p; | |
1917 | for (; | |
c906108c SS |
1918 | p < valaddr + len; |
1919 | p++) | |
1920 | { | |
30a25466 TT |
1921 | /* When not zero-padding, use a different format for the |
1922 | very first byte printed. */ | |
1923 | if (!zero_pad && p == first) | |
1924 | fprintf_filtered (stream, "%x", *p); | |
1925 | else | |
1926 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1927 | } |
1928 | } | |
1929 | else | |
1930 | { | |
30a25466 TT |
1931 | p = valaddr + len - 1; |
1932 | ||
1933 | if (!zero_pad) | |
1934 | { | |
1935 | /* Strip leading 0 bytes, but be sure to leave at least a | |
1936 | single byte at the end. */ | |
1937 | for (; p >= valaddr + 1 && !*p; --p) | |
1938 | ; | |
1939 | } | |
1940 | ||
1941 | const gdb_byte *first = p; | |
1942 | for (; | |
c906108c SS |
1943 | p >= valaddr; |
1944 | p--) | |
1945 | { | |
30a25466 TT |
1946 | /* When not zero-padding, use a different format for the |
1947 | very first byte printed. */ | |
1948 | if (!zero_pad && p == first) | |
1949 | fprintf_filtered (stream, "%x", *p); | |
1950 | else | |
1951 | fprintf_filtered (stream, "%02x", *p); | |
c906108c SS |
1952 | } |
1953 | } | |
c906108c SS |
1954 | } |
1955 | ||
3e43a32a | 1956 | /* VALADDR points to a char integer of LEN bytes. |
581e13c1 | 1957 | Print it out in appropriate language form on stream. |
6b9acc27 JJ |
1958 | Omit any leading zero chars. */ |
1959 | ||
1960 | void | |
6c7a06a3 TT |
1961 | print_char_chars (struct ui_file *stream, struct type *type, |
1962 | const gdb_byte *valaddr, | |
d44e8473 | 1963 | unsigned len, enum bfd_endian byte_order) |
6b9acc27 | 1964 | { |
fc1a4b47 | 1965 | const gdb_byte *p; |
6b9acc27 | 1966 | |
d44e8473 | 1967 | if (byte_order == BFD_ENDIAN_BIG) |
6b9acc27 JJ |
1968 | { |
1969 | p = valaddr; | |
1970 | while (p < valaddr + len - 1 && *p == 0) | |
1971 | ++p; | |
1972 | ||
1973 | while (p < valaddr + len) | |
1974 | { | |
6c7a06a3 | 1975 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1976 | ++p; |
1977 | } | |
1978 | } | |
1979 | else | |
1980 | { | |
1981 | p = valaddr + len - 1; | |
1982 | while (p > valaddr && *p == 0) | |
1983 | --p; | |
1984 | ||
1985 | while (p >= valaddr) | |
1986 | { | |
6c7a06a3 | 1987 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1988 | --p; |
1989 | } | |
1990 | } | |
1991 | } | |
1992 | ||
132c57b4 TT |
1993 | /* Print function pointer with inferior address ADDRESS onto stdio |
1994 | stream STREAM. */ | |
1995 | ||
1996 | void | |
edf0c1b7 TT |
1997 | print_function_pointer_address (const struct value_print_options *options, |
1998 | struct gdbarch *gdbarch, | |
132c57b4 | 1999 | CORE_ADDR address, |
edf0c1b7 | 2000 | struct ui_file *stream) |
132c57b4 TT |
2001 | { |
2002 | CORE_ADDR func_addr | |
2003 | = gdbarch_convert_from_func_ptr_addr (gdbarch, address, | |
2004 | ¤t_target); | |
2005 | ||
2006 | /* If the function pointer is represented by a description, print | |
2007 | the address of the description. */ | |
edf0c1b7 | 2008 | if (options->addressprint && func_addr != address) |
132c57b4 TT |
2009 | { |
2010 | fputs_filtered ("@", stream); | |
2011 | fputs_filtered (paddress (gdbarch, address), stream); | |
2012 | fputs_filtered (": ", stream); | |
2013 | } | |
edf0c1b7 | 2014 | print_address_demangle (options, gdbarch, func_addr, stream, demangle); |
132c57b4 TT |
2015 | } |
2016 | ||
2017 | ||
79a45b7d | 2018 | /* Print on STREAM using the given OPTIONS the index for the element |
e79af960 JB |
2019 | at INDEX of an array whose index type is INDEX_TYPE. */ |
2020 | ||
2021 | void | |
2022 | maybe_print_array_index (struct type *index_type, LONGEST index, | |
79a45b7d TT |
2023 | struct ui_file *stream, |
2024 | const struct value_print_options *options) | |
e79af960 JB |
2025 | { |
2026 | struct value *index_value; | |
2027 | ||
79a45b7d | 2028 | if (!options->print_array_indexes) |
e79af960 JB |
2029 | return; |
2030 | ||
2031 | index_value = value_from_longest (index_type, index); | |
2032 | ||
79a45b7d TT |
2033 | LA_PRINT_ARRAY_INDEX (index_value, stream, options); |
2034 | } | |
e79af960 | 2035 | |
c906108c | 2036 | /* Called by various <lang>_val_print routines to print elements of an |
c5aa993b | 2037 | array in the form "<elem1>, <elem2>, <elem3>, ...". |
c906108c | 2038 | |
c5aa993b JM |
2039 | (FIXME?) Assumes array element separator is a comma, which is correct |
2040 | for all languages currently handled. | |
2041 | (FIXME?) Some languages have a notation for repeated array elements, | |
581e13c1 | 2042 | perhaps we should try to use that notation when appropriate. */ |
c906108c SS |
2043 | |
2044 | void | |
490f124f | 2045 | val_print_array_elements (struct type *type, |
e8b24d9f | 2046 | LONGEST embedded_offset, |
a2bd3dcd | 2047 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 2048 | int recurse, |
e8b24d9f | 2049 | struct value *val, |
79a45b7d | 2050 | const struct value_print_options *options, |
fba45db2 | 2051 | unsigned int i) |
c906108c SS |
2052 | { |
2053 | unsigned int things_printed = 0; | |
2054 | unsigned len; | |
aa715135 | 2055 | struct type *elttype, *index_type, *base_index_type; |
c906108c SS |
2056 | unsigned eltlen; |
2057 | /* Position of the array element we are examining to see | |
2058 | whether it is repeated. */ | |
2059 | unsigned int rep1; | |
2060 | /* Number of repetitions we have detected so far. */ | |
2061 | unsigned int reps; | |
dbc98a8b | 2062 | LONGEST low_bound, high_bound; |
aa715135 | 2063 | LONGEST low_pos, high_pos; |
c5aa993b | 2064 | |
c906108c | 2065 | elttype = TYPE_TARGET_TYPE (type); |
3ae385af | 2066 | eltlen = type_length_units (check_typedef (elttype)); |
e79af960 | 2067 | index_type = TYPE_INDEX_TYPE (type); |
c906108c | 2068 | |
dbc98a8b | 2069 | if (get_array_bounds (type, &low_bound, &high_bound)) |
75be741b | 2070 | { |
aa715135 JG |
2071 | if (TYPE_CODE (index_type) == TYPE_CODE_RANGE) |
2072 | base_index_type = TYPE_TARGET_TYPE (index_type); | |
2073 | else | |
2074 | base_index_type = index_type; | |
2075 | ||
2076 | /* Non-contiguous enumerations types can by used as index types | |
2077 | in some languages (e.g. Ada). In this case, the array length | |
2078 | shall be computed from the positions of the first and last | |
2079 | literal in the enumeration type, and not from the values | |
2080 | of these literals. */ | |
2081 | if (!discrete_position (base_index_type, low_bound, &low_pos) | |
2082 | || !discrete_position (base_index_type, high_bound, &high_pos)) | |
2083 | { | |
2084 | warning (_("unable to get positions in array, use bounds instead")); | |
2085 | low_pos = low_bound; | |
2086 | high_pos = high_bound; | |
2087 | } | |
2088 | ||
2089 | /* The array length should normally be HIGH_POS - LOW_POS + 1. | |
75be741b | 2090 | But we have to be a little extra careful, because some languages |
aa715135 | 2091 | such as Ada allow LOW_POS to be greater than HIGH_POS for |
75be741b JB |
2092 | empty arrays. In that situation, the array length is just zero, |
2093 | not negative! */ | |
aa715135 | 2094 | if (low_pos > high_pos) |
75be741b JB |
2095 | len = 0; |
2096 | else | |
aa715135 | 2097 | len = high_pos - low_pos + 1; |
75be741b | 2098 | } |
e936309c JB |
2099 | else |
2100 | { | |
dbc98a8b KW |
2101 | warning (_("unable to get bounds of array, assuming null array")); |
2102 | low_bound = 0; | |
2103 | len = 0; | |
168de233 JB |
2104 | } |
2105 | ||
c906108c SS |
2106 | annotate_array_section_begin (i, elttype); |
2107 | ||
79a45b7d | 2108 | for (; i < len && things_printed < options->print_max; i++) |
c906108c SS |
2109 | { |
2110 | if (i != 0) | |
2111 | { | |
2a998fc0 | 2112 | if (options->prettyformat_arrays) |
c906108c SS |
2113 | { |
2114 | fprintf_filtered (stream, ",\n"); | |
2115 | print_spaces_filtered (2 + 2 * recurse, stream); | |
2116 | } | |
2117 | else | |
2118 | { | |
2119 | fprintf_filtered (stream, ", "); | |
2120 | } | |
2121 | } | |
2122 | wrap_here (n_spaces (2 + 2 * recurse)); | |
dbc98a8b | 2123 | maybe_print_array_index (index_type, i + low_bound, |
79a45b7d | 2124 | stream, options); |
c906108c SS |
2125 | |
2126 | rep1 = i + 1; | |
2127 | reps = 1; | |
35bef4fd TT |
2128 | /* Only check for reps if repeat_count_threshold is not set to |
2129 | UINT_MAX (unlimited). */ | |
2130 | if (options->repeat_count_threshold < UINT_MAX) | |
c906108c | 2131 | { |
35bef4fd | 2132 | while (rep1 < len |
9a0dc9e3 PA |
2133 | && value_contents_eq (val, |
2134 | embedded_offset + i * eltlen, | |
2135 | val, | |
2136 | (embedded_offset | |
2137 | + rep1 * eltlen), | |
2138 | eltlen)) | |
35bef4fd TT |
2139 | { |
2140 | ++reps; | |
2141 | ++rep1; | |
2142 | } | |
c906108c SS |
2143 | } |
2144 | ||
79a45b7d | 2145 | if (reps > options->repeat_count_threshold) |
c906108c | 2146 | { |
e8b24d9f | 2147 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f PA |
2148 | address, stream, recurse + 1, val, options, |
2149 | current_language); | |
c906108c SS |
2150 | annotate_elt_rep (reps); |
2151 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
2152 | annotate_elt_rep_end (); | |
2153 | ||
2154 | i = rep1 - 1; | |
79a45b7d | 2155 | things_printed += options->repeat_count_threshold; |
c906108c SS |
2156 | } |
2157 | else | |
2158 | { | |
e8b24d9f | 2159 | val_print (elttype, embedded_offset + i * eltlen, |
490f124f | 2160 | address, |
0e03807e | 2161 | stream, recurse + 1, val, options, current_language); |
c906108c SS |
2162 | annotate_elt (); |
2163 | things_printed++; | |
2164 | } | |
2165 | } | |
2166 | annotate_array_section_end (); | |
2167 | if (i < len) | |
2168 | { | |
2169 | fprintf_filtered (stream, "..."); | |
2170 | } | |
2171 | } | |
2172 | ||
917317f4 JM |
2173 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
2174 | results in GDB's memory at MYADDR. Returns a count of the bytes | |
9b409511 | 2175 | actually read, and optionally a target_xfer_status value in the |
578d3588 | 2176 | location pointed to by ERRPTR if ERRPTR is non-null. */ |
917317f4 JM |
2177 | |
2178 | /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this | |
2179 | function be eliminated. */ | |
2180 | ||
2181 | static int | |
3e43a32a | 2182 | partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
578d3588 | 2183 | int len, int *errptr) |
917317f4 | 2184 | { |
581e13c1 MS |
2185 | int nread; /* Number of bytes actually read. */ |
2186 | int errcode; /* Error from last read. */ | |
917317f4 | 2187 | |
581e13c1 | 2188 | /* First try a complete read. */ |
917317f4 JM |
2189 | errcode = target_read_memory (memaddr, myaddr, len); |
2190 | if (errcode == 0) | |
2191 | { | |
581e13c1 | 2192 | /* Got it all. */ |
917317f4 JM |
2193 | nread = len; |
2194 | } | |
2195 | else | |
2196 | { | |
581e13c1 | 2197 | /* Loop, reading one byte at a time until we get as much as we can. */ |
917317f4 JM |
2198 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) |
2199 | { | |
2200 | errcode = target_read_memory (memaddr++, myaddr++, 1); | |
2201 | } | |
581e13c1 | 2202 | /* If an error, the last read was unsuccessful, so adjust count. */ |
917317f4 JM |
2203 | if (errcode != 0) |
2204 | { | |
2205 | nread--; | |
2206 | } | |
2207 | } | |
578d3588 | 2208 | if (errptr != NULL) |
917317f4 | 2209 | { |
578d3588 | 2210 | *errptr = errcode; |
917317f4 JM |
2211 | } |
2212 | return (nread); | |
2213 | } | |
2214 | ||
ae6a3a4c TJB |
2215 | /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes |
2216 | each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly | |
2217 | allocated buffer containing the string, which the caller is responsible to | |
2218 | free, and BYTES_READ will be set to the number of bytes read. Returns 0 on | |
9b409511 | 2219 | success, or a target_xfer_status on failure. |
ae6a3a4c | 2220 | |
f380848e SA |
2221 | If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters |
2222 | (including eventual NULs in the middle or end of the string). | |
2223 | ||
2224 | If LEN is -1, stops at the first null character (not necessarily | |
2225 | the first null byte) up to a maximum of FETCHLIMIT characters. Set | |
2226 | FETCHLIMIT to UINT_MAX to read as many characters as possible from | |
2227 | the string. | |
ae6a3a4c TJB |
2228 | |
2229 | Unless an exception is thrown, BUFFER will always be allocated, even on | |
2230 | failure. In this case, some characters might have been read before the | |
2231 | failure happened. Check BYTES_READ to recognize this situation. | |
2232 | ||
2233 | Note: There was a FIXME asking to make this code use target_read_string, | |
2234 | but this function is more general (can read past null characters, up to | |
581e13c1 | 2235 | given LEN). Besides, it is used much more often than target_read_string |
ae6a3a4c TJB |
2236 | so it is more tested. Perhaps callers of target_read_string should use |
2237 | this function instead? */ | |
c906108c SS |
2238 | |
2239 | int | |
ae6a3a4c | 2240 | read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit, |
e17a4113 | 2241 | enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read) |
c906108c | 2242 | { |
ae6a3a4c TJB |
2243 | int errcode; /* Errno returned from bad reads. */ |
2244 | unsigned int nfetch; /* Chars to fetch / chars fetched. */ | |
3e43a32a MS |
2245 | gdb_byte *bufptr; /* Pointer to next available byte in |
2246 | buffer. */ | |
ae6a3a4c TJB |
2247 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ |
2248 | ||
ae6a3a4c TJB |
2249 | /* Loop until we either have all the characters, or we encounter |
2250 | some error, such as bumping into the end of the address space. */ | |
c906108c | 2251 | |
b5096abe PM |
2252 | *buffer = NULL; |
2253 | ||
2254 | old_chain = make_cleanup (free_current_contents, buffer); | |
c906108c SS |
2255 | |
2256 | if (len > 0) | |
2257 | { | |
88db67ef YQ |
2258 | /* We want fetchlimit chars, so we might as well read them all in |
2259 | one operation. */ | |
325fac50 | 2260 | unsigned int fetchlen = std::min ((unsigned) len, fetchlimit); |
f380848e SA |
2261 | |
2262 | *buffer = (gdb_byte *) xmalloc (fetchlen * width); | |
ae6a3a4c | 2263 | bufptr = *buffer; |
c906108c | 2264 | |
f380848e | 2265 | nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode) |
c906108c SS |
2266 | / width; |
2267 | addr += nfetch * width; | |
2268 | bufptr += nfetch * width; | |
2269 | } | |
2270 | else if (len == -1) | |
2271 | { | |
2272 | unsigned long bufsize = 0; | |
88db67ef YQ |
2273 | unsigned int chunksize; /* Size of each fetch, in chars. */ |
2274 | int found_nul; /* Non-zero if we found the nul char. */ | |
2275 | gdb_byte *limit; /* First location past end of fetch buffer. */ | |
2276 | ||
2277 | found_nul = 0; | |
2278 | /* We are looking for a NUL terminator to end the fetching, so we | |
2279 | might as well read in blocks that are large enough to be efficient, | |
2280 | but not so large as to be slow if fetchlimit happens to be large. | |
2281 | So we choose the minimum of 8 and fetchlimit. We used to use 200 | |
2282 | instead of 8 but 200 is way too big for remote debugging over a | |
2283 | serial line. */ | |
325fac50 | 2284 | chunksize = std::min (8u, fetchlimit); |
ae6a3a4c | 2285 | |
c906108c SS |
2286 | do |
2287 | { | |
2288 | QUIT; | |
325fac50 | 2289 | nfetch = std::min ((unsigned long) chunksize, fetchlimit - bufsize); |
c906108c | 2290 | |
ae6a3a4c TJB |
2291 | if (*buffer == NULL) |
2292 | *buffer = (gdb_byte *) xmalloc (nfetch * width); | |
c906108c | 2293 | else |
b5096abe PM |
2294 | *buffer = (gdb_byte *) xrealloc (*buffer, |
2295 | (nfetch + bufsize) * width); | |
c906108c | 2296 | |
ae6a3a4c | 2297 | bufptr = *buffer + bufsize * width; |
c906108c SS |
2298 | bufsize += nfetch; |
2299 | ||
ae6a3a4c | 2300 | /* Read as much as we can. */ |
917317f4 | 2301 | nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode) |
ae6a3a4c | 2302 | / width; |
c906108c | 2303 | |
ae6a3a4c | 2304 | /* Scan this chunk for the null character that terminates the string |
c906108c SS |
2305 | to print. If found, we don't need to fetch any more. Note |
2306 | that bufptr is explicitly left pointing at the next character | |
ae6a3a4c TJB |
2307 | after the null character, or at the next character after the end |
2308 | of the buffer. */ | |
c906108c SS |
2309 | |
2310 | limit = bufptr + nfetch * width; | |
2311 | while (bufptr < limit) | |
2312 | { | |
2313 | unsigned long c; | |
2314 | ||
e17a4113 | 2315 | c = extract_unsigned_integer (bufptr, width, byte_order); |
c906108c SS |
2316 | addr += width; |
2317 | bufptr += width; | |
2318 | if (c == 0) | |
2319 | { | |
2320 | /* We don't care about any error which happened after | |
ae6a3a4c | 2321 | the NUL terminator. */ |
c906108c SS |
2322 | errcode = 0; |
2323 | found_nul = 1; | |
2324 | break; | |
2325 | } | |
2326 | } | |
2327 | } | |
c5aa993b | 2328 | while (errcode == 0 /* no error */ |
ae6a3a4c TJB |
2329 | && bufptr - *buffer < fetchlimit * width /* no overrun */ |
2330 | && !found_nul); /* haven't found NUL yet */ | |
c906108c SS |
2331 | } |
2332 | else | |
ae6a3a4c TJB |
2333 | { /* Length of string is really 0! */ |
2334 | /* We always allocate *buffer. */ | |
224c3ddb | 2335 | *buffer = bufptr = (gdb_byte *) xmalloc (1); |
c906108c SS |
2336 | errcode = 0; |
2337 | } | |
2338 | ||
2339 | /* bufptr and addr now point immediately beyond the last byte which we | |
2340 | consider part of the string (including a '\0' which ends the string). */ | |
ae6a3a4c TJB |
2341 | *bytes_read = bufptr - *buffer; |
2342 | ||
2343 | QUIT; | |
2344 | ||
2345 | discard_cleanups (old_chain); | |
2346 | ||
2347 | return errcode; | |
2348 | } | |
2349 | ||
3b2b8fea TT |
2350 | /* Return true if print_wchar can display W without resorting to a |
2351 | numeric escape, false otherwise. */ | |
2352 | ||
2353 | static int | |
2354 | wchar_printable (gdb_wchar_t w) | |
2355 | { | |
2356 | return (gdb_iswprint (w) | |
2357 | || w == LCST ('\a') || w == LCST ('\b') | |
2358 | || w == LCST ('\f') || w == LCST ('\n') | |
2359 | || w == LCST ('\r') || w == LCST ('\t') | |
2360 | || w == LCST ('\v')); | |
2361 | } | |
2362 | ||
2363 | /* A helper function that converts the contents of STRING to wide | |
2364 | characters and then appends them to OUTPUT. */ | |
2365 | ||
2366 | static void | |
2367 | append_string_as_wide (const char *string, | |
2368 | struct obstack *output) | |
2369 | { | |
2370 | for (; *string; ++string) | |
2371 | { | |
2372 | gdb_wchar_t w = gdb_btowc (*string); | |
2373 | obstack_grow (output, &w, sizeof (gdb_wchar_t)); | |
2374 | } | |
2375 | } | |
2376 | ||
2377 | /* Print a wide character W to OUTPUT. ORIG is a pointer to the | |
2378 | original (target) bytes representing the character, ORIG_LEN is the | |
2379 | number of valid bytes. WIDTH is the number of bytes in a base | |
2380 | characters of the type. OUTPUT is an obstack to which wide | |
2381 | characters are emitted. QUOTER is a (narrow) character indicating | |
2382 | the style of quotes surrounding the character to be printed. | |
2383 | NEED_ESCAPE is an in/out flag which is used to track numeric | |
2384 | escapes across calls. */ | |
2385 | ||
2386 | static void | |
2387 | print_wchar (gdb_wint_t w, const gdb_byte *orig, | |
2388 | int orig_len, int width, | |
2389 | enum bfd_endian byte_order, | |
2390 | struct obstack *output, | |
2391 | int quoter, int *need_escapep) | |
2392 | { | |
2393 | int need_escape = *need_escapep; | |
2394 | ||
2395 | *need_escapep = 0; | |
3b2b8fea | 2396 | |
95c64f92 YQ |
2397 | /* iswprint implementation on Windows returns 1 for tab character. |
2398 | In order to avoid different printout on this host, we explicitly | |
2399 | use wchar_printable function. */ | |
2400 | switch (w) | |
3b2b8fea | 2401 | { |
95c64f92 YQ |
2402 | case LCST ('\a'): |
2403 | obstack_grow_wstr (output, LCST ("\\a")); | |
2404 | break; | |
2405 | case LCST ('\b'): | |
2406 | obstack_grow_wstr (output, LCST ("\\b")); | |
2407 | break; | |
2408 | case LCST ('\f'): | |
2409 | obstack_grow_wstr (output, LCST ("\\f")); | |
2410 | break; | |
2411 | case LCST ('\n'): | |
2412 | obstack_grow_wstr (output, LCST ("\\n")); | |
2413 | break; | |
2414 | case LCST ('\r'): | |
2415 | obstack_grow_wstr (output, LCST ("\\r")); | |
2416 | break; | |
2417 | case LCST ('\t'): | |
2418 | obstack_grow_wstr (output, LCST ("\\t")); | |
2419 | break; | |
2420 | case LCST ('\v'): | |
2421 | obstack_grow_wstr (output, LCST ("\\v")); | |
2422 | break; | |
2423 | default: | |
3b2b8fea | 2424 | { |
95c64f92 YQ |
2425 | if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w) |
2426 | && w != LCST ('8') | |
2427 | && w != LCST ('9')))) | |
2428 | { | |
2429 | gdb_wchar_t wchar = w; | |
3b2b8fea | 2430 | |
95c64f92 YQ |
2431 | if (w == gdb_btowc (quoter) || w == LCST ('\\')) |
2432 | obstack_grow_wstr (output, LCST ("\\")); | |
2433 | obstack_grow (output, &wchar, sizeof (gdb_wchar_t)); | |
2434 | } | |
2435 | else | |
2436 | { | |
2437 | int i; | |
3b2b8fea | 2438 | |
95c64f92 YQ |
2439 | for (i = 0; i + width <= orig_len; i += width) |
2440 | { | |
2441 | char octal[30]; | |
2442 | ULONGEST value; | |
2443 | ||
2444 | value = extract_unsigned_integer (&orig[i], width, | |
3b2b8fea | 2445 | byte_order); |
95c64f92 YQ |
2446 | /* If the value fits in 3 octal digits, print it that |
2447 | way. Otherwise, print it as a hex escape. */ | |
2448 | if (value <= 0777) | |
2449 | xsnprintf (octal, sizeof (octal), "\\%.3o", | |
2450 | (int) (value & 0777)); | |
2451 | else | |
2452 | xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value); | |
2453 | append_string_as_wide (octal, output); | |
2454 | } | |
2455 | /* If we somehow have extra bytes, print them now. */ | |
2456 | while (i < orig_len) | |
2457 | { | |
2458 | char octal[5]; | |
2459 | ||
2460 | xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff); | |
2461 | append_string_as_wide (octal, output); | |
2462 | ++i; | |
2463 | } | |
2464 | ||
2465 | *need_escapep = 1; | |
2466 | } | |
3b2b8fea TT |
2467 | break; |
2468 | } | |
2469 | } | |
2470 | } | |
2471 | ||
2472 | /* Print the character C on STREAM as part of the contents of a | |
2473 | literal string whose delimiter is QUOTER. ENCODING names the | |
2474 | encoding of C. */ | |
2475 | ||
2476 | void | |
2477 | generic_emit_char (int c, struct type *type, struct ui_file *stream, | |
2478 | int quoter, const char *encoding) | |
2479 | { | |
2480 | enum bfd_endian byte_order | |
2481 | = gdbarch_byte_order (get_type_arch (type)); | |
3b2b8fea | 2482 | gdb_byte *buf; |
3b2b8fea TT |
2483 | int need_escape = 0; |
2484 | ||
224c3ddb | 2485 | buf = (gdb_byte *) alloca (TYPE_LENGTH (type)); |
3b2b8fea TT |
2486 | pack_long (buf, type, c); |
2487 | ||
cda6c55b | 2488 | wchar_iterator iter (buf, TYPE_LENGTH (type), encoding, TYPE_LENGTH (type)); |
3b2b8fea TT |
2489 | |
2490 | /* This holds the printable form of the wchar_t data. */ | |
8268c778 | 2491 | auto_obstack wchar_buf; |
3b2b8fea TT |
2492 | |
2493 | while (1) | |
2494 | { | |
2495 | int num_chars; | |
2496 | gdb_wchar_t *chars; | |
2497 | const gdb_byte *buf; | |
2498 | size_t buflen; | |
2499 | int print_escape = 1; | |
2500 | enum wchar_iterate_result result; | |
2501 | ||
cda6c55b | 2502 | num_chars = iter.iterate (&result, &chars, &buf, &buflen); |
3b2b8fea TT |
2503 | if (num_chars < 0) |
2504 | break; | |
2505 | if (num_chars > 0) | |
2506 | { | |
2507 | /* If all characters are printable, print them. Otherwise, | |
2508 | we're going to have to print an escape sequence. We | |
2509 | check all characters because we want to print the target | |
2510 | bytes in the escape sequence, and we don't know character | |
2511 | boundaries there. */ | |
2512 | int i; | |
2513 | ||
2514 | print_escape = 0; | |
2515 | for (i = 0; i < num_chars; ++i) | |
2516 | if (!wchar_printable (chars[i])) | |
2517 | { | |
2518 | print_escape = 1; | |
2519 | break; | |
2520 | } | |
2521 | ||
2522 | if (!print_escape) | |
2523 | { | |
2524 | for (i = 0; i < num_chars; ++i) | |
2525 | print_wchar (chars[i], buf, buflen, | |
2526 | TYPE_LENGTH (type), byte_order, | |
2527 | &wchar_buf, quoter, &need_escape); | |
2528 | } | |
2529 | } | |
2530 | ||
2531 | /* This handles the NUM_CHARS == 0 case as well. */ | |
2532 | if (print_escape) | |
2533 | print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type), | |
2534 | byte_order, &wchar_buf, quoter, &need_escape); | |
2535 | } | |
2536 | ||
2537 | /* The output in the host encoding. */ | |
8268c778 | 2538 | auto_obstack output; |
3b2b8fea TT |
2539 | |
2540 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2541 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2542 | obstack_object_size (&wchar_buf), |
fff10684 | 2543 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2544 | obstack_1grow (&output, '\0'); |
2545 | ||
79f33898 | 2546 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2547 | } |
2548 | ||
0d63ecda KS |
2549 | /* Return the repeat count of the next character/byte in ITER, |
2550 | storing the result in VEC. */ | |
2551 | ||
2552 | static int | |
cda6c55b | 2553 | count_next_character (wchar_iterator *iter, |
0d63ecda KS |
2554 | VEC (converted_character_d) **vec) |
2555 | { | |
2556 | struct converted_character *current; | |
2557 | ||
2558 | if (VEC_empty (converted_character_d, *vec)) | |
2559 | { | |
2560 | struct converted_character tmp; | |
2561 | gdb_wchar_t *chars; | |
2562 | ||
2563 | tmp.num_chars | |
cda6c55b | 2564 | = iter->iterate (&tmp.result, &chars, &tmp.buf, &tmp.buflen); |
0d63ecda KS |
2565 | if (tmp.num_chars > 0) |
2566 | { | |
2567 | gdb_assert (tmp.num_chars < MAX_WCHARS); | |
2568 | memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t)); | |
2569 | } | |
2570 | VEC_safe_push (converted_character_d, *vec, &tmp); | |
2571 | } | |
2572 | ||
2573 | current = VEC_last (converted_character_d, *vec); | |
2574 | ||
2575 | /* Count repeated characters or bytes. */ | |
2576 | current->repeat_count = 1; | |
2577 | if (current->num_chars == -1) | |
2578 | { | |
2579 | /* EOF */ | |
2580 | return -1; | |
2581 | } | |
2582 | else | |
2583 | { | |
2584 | gdb_wchar_t *chars; | |
2585 | struct converted_character d; | |
2586 | int repeat; | |
2587 | ||
2588 | d.repeat_count = 0; | |
2589 | ||
2590 | while (1) | |
2591 | { | |
2592 | /* Get the next character. */ | |
cda6c55b | 2593 | d.num_chars = iter->iterate (&d.result, &chars, &d.buf, &d.buflen); |
0d63ecda KS |
2594 | |
2595 | /* If a character was successfully converted, save the character | |
2596 | into the converted character. */ | |
2597 | if (d.num_chars > 0) | |
2598 | { | |
2599 | gdb_assert (d.num_chars < MAX_WCHARS); | |
2600 | memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars)); | |
2601 | } | |
2602 | ||
2603 | /* Determine if the current character is the same as this | |
2604 | new character. */ | |
2605 | if (d.num_chars == current->num_chars && d.result == current->result) | |
2606 | { | |
2607 | /* There are two cases to consider: | |
2608 | ||
2609 | 1) Equality of converted character (num_chars > 0) | |
2610 | 2) Equality of non-converted character (num_chars == 0) */ | |
2611 | if ((current->num_chars > 0 | |
2612 | && memcmp (current->chars, d.chars, | |
2613 | WCHAR_BUFLEN (current->num_chars)) == 0) | |
2614 | || (current->num_chars == 0 | |
2615 | && current->buflen == d.buflen | |
2616 | && memcmp (current->buf, d.buf, current->buflen) == 0)) | |
2617 | ++current->repeat_count; | |
2618 | else | |
2619 | break; | |
2620 | } | |
2621 | else | |
2622 | break; | |
2623 | } | |
2624 | ||
2625 | /* Push this next converted character onto the result vector. */ | |
2626 | repeat = current->repeat_count; | |
2627 | VEC_safe_push (converted_character_d, *vec, &d); | |
2628 | return repeat; | |
2629 | } | |
2630 | } | |
2631 | ||
2632 | /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote | |
2633 | character to use with string output. WIDTH is the size of the output | |
2634 | character type. BYTE_ORDER is the the target byte order. OPTIONS | |
2635 | is the user's print options. */ | |
2636 | ||
2637 | static void | |
2638 | print_converted_chars_to_obstack (struct obstack *obstack, | |
2639 | VEC (converted_character_d) *chars, | |
2640 | int quote_char, int width, | |
2641 | enum bfd_endian byte_order, | |
2642 | const struct value_print_options *options) | |
2643 | { | |
2644 | unsigned int idx; | |
2645 | struct converted_character *elem; | |
2646 | enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last; | |
2647 | gdb_wchar_t wide_quote_char = gdb_btowc (quote_char); | |
2648 | int need_escape = 0; | |
2649 | ||
2650 | /* Set the start state. */ | |
2651 | idx = 0; | |
2652 | last = state = START; | |
2653 | elem = NULL; | |
2654 | ||
2655 | while (1) | |
2656 | { | |
2657 | switch (state) | |
2658 | { | |
2659 | case START: | |
2660 | /* Nothing to do. */ | |
2661 | break; | |
2662 | ||
2663 | case SINGLE: | |
2664 | { | |
2665 | int j; | |
2666 | ||
2667 | /* We are outputting a single character | |
2668 | (< options->repeat_count_threshold). */ | |
2669 | ||
2670 | if (last != SINGLE) | |
2671 | { | |
2672 | /* We were outputting some other type of content, so we | |
2673 | must output and a comma and a quote. */ | |
2674 | if (last != START) | |
2675 | obstack_grow_wstr (obstack, LCST (", ")); | |
0d63ecda KS |
2676 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2677 | } | |
2678 | /* Output the character. */ | |
2679 | for (j = 0; j < elem->repeat_count; ++j) | |
2680 | { | |
2681 | if (elem->result == wchar_iterate_ok) | |
2682 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2683 | byte_order, obstack, quote_char, &need_escape); | |
2684 | else | |
2685 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2686 | byte_order, obstack, quote_char, &need_escape); | |
2687 | } | |
2688 | } | |
2689 | break; | |
2690 | ||
2691 | case REPEAT: | |
2692 | { | |
2693 | int j; | |
2694 | char *s; | |
2695 | ||
2696 | /* We are outputting a character with a repeat count | |
2697 | greater than options->repeat_count_threshold. */ | |
2698 | ||
2699 | if (last == SINGLE) | |
2700 | { | |
2701 | /* We were outputting a single string. Terminate the | |
2702 | string. */ | |
0d63ecda KS |
2703 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2704 | } | |
2705 | if (last != START) | |
2706 | obstack_grow_wstr (obstack, LCST (", ")); | |
2707 | ||
2708 | /* Output the character and repeat string. */ | |
2709 | obstack_grow_wstr (obstack, LCST ("'")); | |
2710 | if (elem->result == wchar_iterate_ok) | |
2711 | print_wchar (elem->chars[0], elem->buf, elem->buflen, width, | |
2712 | byte_order, obstack, quote_char, &need_escape); | |
2713 | else | |
2714 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, | |
2715 | byte_order, obstack, quote_char, &need_escape); | |
2716 | obstack_grow_wstr (obstack, LCST ("'")); | |
2717 | s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count); | |
2718 | for (j = 0; s[j]; ++j) | |
2719 | { | |
2720 | gdb_wchar_t w = gdb_btowc (s[j]); | |
2721 | obstack_grow (obstack, &w, sizeof (gdb_wchar_t)); | |
2722 | } | |
2723 | xfree (s); | |
2724 | } | |
2725 | break; | |
2726 | ||
2727 | case INCOMPLETE: | |
2728 | /* We are outputting an incomplete sequence. */ | |
2729 | if (last == SINGLE) | |
2730 | { | |
2731 | /* If we were outputting a string of SINGLE characters, | |
2732 | terminate the quote. */ | |
0d63ecda KS |
2733 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
2734 | } | |
2735 | if (last != START) | |
2736 | obstack_grow_wstr (obstack, LCST (", ")); | |
2737 | ||
2738 | /* Output the incomplete sequence string. */ | |
2739 | obstack_grow_wstr (obstack, LCST ("<incomplete sequence ")); | |
2740 | print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order, | |
2741 | obstack, 0, &need_escape); | |
2742 | obstack_grow_wstr (obstack, LCST (">")); | |
2743 | ||
2744 | /* We do not attempt to outupt anything after this. */ | |
2745 | state = FINISH; | |
2746 | break; | |
2747 | ||
2748 | case FINISH: | |
2749 | /* All done. If we were outputting a string of SINGLE | |
2750 | characters, the string must be terminated. Otherwise, | |
2751 | REPEAT and INCOMPLETE are always left properly terminated. */ | |
2752 | if (last == SINGLE) | |
e93a8774 | 2753 | obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t)); |
0d63ecda KS |
2754 | |
2755 | return; | |
2756 | } | |
2757 | ||
2758 | /* Get the next element and state. */ | |
2759 | last = state; | |
2760 | if (state != FINISH) | |
2761 | { | |
2762 | elem = VEC_index (converted_character_d, chars, idx++); | |
2763 | switch (elem->result) | |
2764 | { | |
2765 | case wchar_iterate_ok: | |
2766 | case wchar_iterate_invalid: | |
2767 | if (elem->repeat_count > options->repeat_count_threshold) | |
2768 | state = REPEAT; | |
2769 | else | |
2770 | state = SINGLE; | |
2771 | break; | |
2772 | ||
2773 | case wchar_iterate_incomplete: | |
2774 | state = INCOMPLETE; | |
2775 | break; | |
2776 | ||
2777 | case wchar_iterate_eof: | |
2778 | state = FINISH; | |
2779 | break; | |
2780 | } | |
2781 | } | |
2782 | } | |
2783 | } | |
2784 | ||
3b2b8fea TT |
2785 | /* Print the character string STRING, printing at most LENGTH |
2786 | characters. LENGTH is -1 if the string is nul terminated. TYPE is | |
2787 | the type of each character. OPTIONS holds the printing options; | |
2788 | printing stops early if the number hits print_max; repeat counts | |
2789 | are printed as appropriate. Print ellipses at the end if we had to | |
2790 | stop before printing LENGTH characters, or if FORCE_ELLIPSES. | |
2791 | QUOTE_CHAR is the character to print at each end of the string. If | |
2792 | C_STYLE_TERMINATOR is true, and the last character is 0, then it is | |
2793 | omitted. */ | |
2794 | ||
2795 | void | |
2796 | generic_printstr (struct ui_file *stream, struct type *type, | |
2797 | const gdb_byte *string, unsigned int length, | |
2798 | const char *encoding, int force_ellipses, | |
2799 | int quote_char, int c_style_terminator, | |
2800 | const struct value_print_options *options) | |
2801 | { | |
2802 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); | |
2803 | unsigned int i; | |
3b2b8fea | 2804 | int width = TYPE_LENGTH (type); |
3b2b8fea | 2805 | struct cleanup *cleanup; |
3b2b8fea | 2806 | int finished = 0; |
0d63ecda KS |
2807 | struct converted_character *last; |
2808 | VEC (converted_character_d) *converted_chars; | |
3b2b8fea TT |
2809 | |
2810 | if (length == -1) | |
2811 | { | |
2812 | unsigned long current_char = 1; | |
2813 | ||
2814 | for (i = 0; current_char; ++i) | |
2815 | { | |
2816 | QUIT; | |
2817 | current_char = extract_unsigned_integer (string + i * width, | |
2818 | width, byte_order); | |
2819 | } | |
2820 | length = i; | |
2821 | } | |
2822 | ||
2823 | /* If the string was not truncated due to `set print elements', and | |
2824 | the last byte of it is a null, we don't print that, in | |
2825 | traditional C style. */ | |
2826 | if (c_style_terminator | |
2827 | && !force_ellipses | |
2828 | && length > 0 | |
2829 | && (extract_unsigned_integer (string + (length - 1) * width, | |
2830 | width, byte_order) == 0)) | |
2831 | length--; | |
2832 | ||
2833 | if (length == 0) | |
2834 | { | |
2835 | fputs_filtered ("\"\"", stream); | |
2836 | return; | |
2837 | } | |
2838 | ||
2839 | /* Arrange to iterate over the characters, in wchar_t form. */ | |
cda6c55b | 2840 | wchar_iterator iter (string, length * width, encoding, width); |
0d63ecda | 2841 | converted_chars = NULL; |
cda6c55b TT |
2842 | cleanup = make_cleanup (VEC_cleanup (converted_character_d), |
2843 | &converted_chars); | |
3b2b8fea | 2844 | |
0d63ecda KS |
2845 | /* Convert characters until the string is over or the maximum |
2846 | number of printed characters has been reached. */ | |
2847 | i = 0; | |
2848 | while (i < options->print_max) | |
3b2b8fea | 2849 | { |
0d63ecda | 2850 | int r; |
3b2b8fea TT |
2851 | |
2852 | QUIT; | |
2853 | ||
0d63ecda | 2854 | /* Grab the next character and repeat count. */ |
cda6c55b | 2855 | r = count_next_character (&iter, &converted_chars); |
3b2b8fea | 2856 | |
0d63ecda KS |
2857 | /* If less than zero, the end of the input string was reached. */ |
2858 | if (r < 0) | |
2859 | break; | |
3b2b8fea | 2860 | |
0d63ecda KS |
2861 | /* Otherwise, add the count to the total print count and get |
2862 | the next character. */ | |
2863 | i += r; | |
2864 | } | |
3b2b8fea | 2865 | |
0d63ecda KS |
2866 | /* Get the last element and determine if the entire string was |
2867 | processed. */ | |
2868 | last = VEC_last (converted_character_d, converted_chars); | |
2869 | finished = (last->result == wchar_iterate_eof); | |
3b2b8fea | 2870 | |
0d63ecda KS |
2871 | /* Ensure that CONVERTED_CHARS is terminated. */ |
2872 | last->result = wchar_iterate_eof; | |
3b2b8fea | 2873 | |
0d63ecda KS |
2874 | /* WCHAR_BUF is the obstack we use to represent the string in |
2875 | wchar_t form. */ | |
8268c778 | 2876 | auto_obstack wchar_buf; |
3b2b8fea | 2877 | |
0d63ecda KS |
2878 | /* Print the output string to the obstack. */ |
2879 | print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char, | |
2880 | width, byte_order, options); | |
3b2b8fea TT |
2881 | |
2882 | if (force_ellipses || !finished) | |
2883 | obstack_grow_wstr (&wchar_buf, LCST ("...")); | |
2884 | ||
2885 | /* OUTPUT is where we collect `char's for printing. */ | |
8268c778 | 2886 | auto_obstack output; |
3b2b8fea TT |
2887 | |
2888 | convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (), | |
ac91cd70 | 2889 | (gdb_byte *) obstack_base (&wchar_buf), |
3b2b8fea | 2890 | obstack_object_size (&wchar_buf), |
fff10684 | 2891 | sizeof (gdb_wchar_t), &output, translit_char); |
3b2b8fea TT |
2892 | obstack_1grow (&output, '\0'); |
2893 | ||
79f33898 | 2894 | fputs_filtered ((const char *) obstack_base (&output), stream); |
3b2b8fea TT |
2895 | |
2896 | do_cleanups (cleanup); | |
2897 | } | |
2898 | ||
ae6a3a4c TJB |
2899 | /* Print a string from the inferior, starting at ADDR and printing up to LEN |
2900 | characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing | |
2901 | stops at the first null byte, otherwise printing proceeds (including null | |
2902 | bytes) until either print_max or LEN characters have been printed, | |
09ca9e2e TT |
2903 | whichever is smaller. ENCODING is the name of the string's |
2904 | encoding. It can be NULL, in which case the target encoding is | |
2905 | assumed. */ | |
ae6a3a4c TJB |
2906 | |
2907 | int | |
09ca9e2e TT |
2908 | val_print_string (struct type *elttype, const char *encoding, |
2909 | CORE_ADDR addr, int len, | |
6c7a06a3 | 2910 | struct ui_file *stream, |
ae6a3a4c TJB |
2911 | const struct value_print_options *options) |
2912 | { | |
2913 | int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ | |
d09f2c3f | 2914 | int err; /* Non-zero if we got a bad read. */ |
581e13c1 | 2915 | int found_nul; /* Non-zero if we found the nul char. */ |
ae6a3a4c TJB |
2916 | unsigned int fetchlimit; /* Maximum number of chars to print. */ |
2917 | int bytes_read; | |
2918 | gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */ | |
2919 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ | |
5af949e3 | 2920 | struct gdbarch *gdbarch = get_type_arch (elttype); |
e17a4113 | 2921 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
6c7a06a3 | 2922 | int width = TYPE_LENGTH (elttype); |
ae6a3a4c TJB |
2923 | |
2924 | /* First we need to figure out the limit on the number of characters we are | |
2925 | going to attempt to fetch and print. This is actually pretty simple. If | |
2926 | LEN >= zero, then the limit is the minimum of LEN and print_max. If | |
2927 | LEN is -1, then the limit is print_max. This is true regardless of | |
2928 | whether print_max is zero, UINT_MAX (unlimited), or something in between, | |
2929 | because finding the null byte (or available memory) is what actually | |
2930 | limits the fetch. */ | |
2931 | ||
325fac50 PA |
2932 | fetchlimit = (len == -1 ? options->print_max : std::min ((unsigned) len, |
2933 | options->print_max)); | |
ae6a3a4c | 2934 | |
d09f2c3f PA |
2935 | err = read_string (addr, len, width, fetchlimit, byte_order, |
2936 | &buffer, &bytes_read); | |
ae6a3a4c TJB |
2937 | old_chain = make_cleanup (xfree, buffer); |
2938 | ||
2939 | addr += bytes_read; | |
c906108c | 2940 | |
3e43a32a MS |
2941 | /* We now have either successfully filled the buffer to fetchlimit, |
2942 | or terminated early due to an error or finding a null char when | |
2943 | LEN is -1. */ | |
ae6a3a4c TJB |
2944 | |
2945 | /* Determine found_nul by looking at the last character read. */ | |
6694c411 JK |
2946 | found_nul = 0; |
2947 | if (bytes_read >= width) | |
2948 | found_nul = extract_unsigned_integer (buffer + bytes_read - width, width, | |
2949 | byte_order) == 0; | |
c906108c SS |
2950 | if (len == -1 && !found_nul) |
2951 | { | |
777ea8f1 | 2952 | gdb_byte *peekbuf; |
c906108c | 2953 | |
ae6a3a4c | 2954 | /* We didn't find a NUL terminator we were looking for. Attempt |
c5aa993b JM |
2955 | to peek at the next character. If not successful, or it is not |
2956 | a null byte, then force ellipsis to be printed. */ | |
c906108c | 2957 | |
777ea8f1 | 2958 | peekbuf = (gdb_byte *) alloca (width); |
c906108c SS |
2959 | |
2960 | if (target_read_memory (addr, peekbuf, width) == 0 | |
e17a4113 | 2961 | && extract_unsigned_integer (peekbuf, width, byte_order) != 0) |
c906108c SS |
2962 | force_ellipsis = 1; |
2963 | } | |
d09f2c3f | 2964 | else if ((len >= 0 && err != 0) || (len > bytes_read / width)) |
c906108c SS |
2965 | { |
2966 | /* Getting an error when we have a requested length, or fetching less | |
c5aa993b | 2967 | than the number of characters actually requested, always make us |
ae6a3a4c | 2968 | print ellipsis. */ |
c906108c SS |
2969 | force_ellipsis = 1; |
2970 | } | |
2971 | ||
c906108c SS |
2972 | /* If we get an error before fetching anything, don't print a string. |
2973 | But if we fetch something and then get an error, print the string | |
2974 | and then the error message. */ | |
d09f2c3f | 2975 | if (err == 0 || bytes_read > 0) |
c906108c | 2976 | { |
be759fcf | 2977 | LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width, |
3a772aa4 | 2978 | encoding, force_ellipsis, options); |
c906108c SS |
2979 | } |
2980 | ||
d09f2c3f | 2981 | if (err != 0) |
c906108c | 2982 | { |
1ccbe998 | 2983 | std::string str = memory_error_message (TARGET_XFER_E_IO, gdbarch, addr); |
578d3588 PA |
2984 | |
2985 | fprintf_filtered (stream, "<error: "); | |
1ccbe998 | 2986 | fputs_filtered (str.c_str (), stream); |
578d3588 | 2987 | fprintf_filtered (stream, ">"); |
c906108c | 2988 | } |
ae6a3a4c | 2989 | |
c906108c SS |
2990 | gdb_flush (stream); |
2991 | do_cleanups (old_chain); | |
ae6a3a4c TJB |
2992 | |
2993 | return (bytes_read / width); | |
c906108c | 2994 | } |
c906108c | 2995 | \f |
c5aa993b | 2996 | |
09e6485f PA |
2997 | /* The 'set input-radix' command writes to this auxiliary variable. |
2998 | If the requested radix is valid, INPUT_RADIX is updated; otherwise, | |
2999 | it is left unchanged. */ | |
3000 | ||
3001 | static unsigned input_radix_1 = 10; | |
3002 | ||
c906108c SS |
3003 | /* Validate an input or output radix setting, and make sure the user |
3004 | knows what they really did here. Radix setting is confusing, e.g. | |
3005 | setting the input radix to "10" never changes it! */ | |
3006 | ||
c906108c | 3007 | static void |
fba45db2 | 3008 | set_input_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 3009 | { |
09e6485f | 3010 | set_input_radix_1 (from_tty, input_radix_1); |
c906108c SS |
3011 | } |
3012 | ||
c906108c | 3013 | static void |
fba45db2 | 3014 | set_input_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
3015 | { |
3016 | /* We don't currently disallow any input radix except 0 or 1, which don't | |
3017 | make any mathematical sense. In theory, we can deal with any input | |
3018 | radix greater than 1, even if we don't have unique digits for every | |
3019 | value from 0 to radix-1, but in practice we lose on large radix values. | |
3020 | We should either fix the lossage or restrict the radix range more. | |
581e13c1 | 3021 | (FIXME). */ |
c906108c SS |
3022 | |
3023 | if (radix < 2) | |
3024 | { | |
09e6485f | 3025 | input_radix_1 = input_radix; |
8a3fe4f8 | 3026 | error (_("Nonsense input radix ``decimal %u''; input radix unchanged."), |
c906108c SS |
3027 | radix); |
3028 | } | |
09e6485f | 3029 | input_radix_1 = input_radix = radix; |
c906108c SS |
3030 | if (from_tty) |
3031 | { | |
3e43a32a MS |
3032 | printf_filtered (_("Input radix now set to " |
3033 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3034 | radix, radix, radix); |
3035 | } | |
3036 | } | |
3037 | ||
09e6485f PA |
3038 | /* The 'set output-radix' command writes to this auxiliary variable. |
3039 | If the requested radix is valid, OUTPUT_RADIX is updated, | |
3040 | otherwise, it is left unchanged. */ | |
3041 | ||
3042 | static unsigned output_radix_1 = 10; | |
3043 | ||
c906108c | 3044 | static void |
fba45db2 | 3045 | set_output_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 3046 | { |
09e6485f | 3047 | set_output_radix_1 (from_tty, output_radix_1); |
c906108c SS |
3048 | } |
3049 | ||
3050 | static void | |
fba45db2 | 3051 | set_output_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
3052 | { |
3053 | /* Validate the radix and disallow ones that we aren't prepared to | |
581e13c1 | 3054 | handle correctly, leaving the radix unchanged. */ |
c906108c SS |
3055 | switch (radix) |
3056 | { | |
3057 | case 16: | |
79a45b7d | 3058 | user_print_options.output_format = 'x'; /* hex */ |
c906108c SS |
3059 | break; |
3060 | case 10: | |
79a45b7d | 3061 | user_print_options.output_format = 0; /* decimal */ |
c906108c SS |
3062 | break; |
3063 | case 8: | |
79a45b7d | 3064 | user_print_options.output_format = 'o'; /* octal */ |
c906108c SS |
3065 | break; |
3066 | default: | |
09e6485f | 3067 | output_radix_1 = output_radix; |
3e43a32a MS |
3068 | error (_("Unsupported output radix ``decimal %u''; " |
3069 | "output radix unchanged."), | |
c906108c SS |
3070 | radix); |
3071 | } | |
09e6485f | 3072 | output_radix_1 = output_radix = radix; |
c906108c SS |
3073 | if (from_tty) |
3074 | { | |
3e43a32a MS |
3075 | printf_filtered (_("Output radix now set to " |
3076 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3077 | radix, radix, radix); |
3078 | } | |
3079 | } | |
3080 | ||
3081 | /* Set both the input and output radix at once. Try to set the output radix | |
3082 | first, since it has the most restrictive range. An radix that is valid as | |
3083 | an output radix is also valid as an input radix. | |
3084 | ||
3085 | It may be useful to have an unusual input radix. If the user wishes to | |
3086 | set an input radix that is not valid as an output radix, he needs to use | |
581e13c1 | 3087 | the 'set input-radix' command. */ |
c906108c SS |
3088 | |
3089 | static void | |
b0a8e6c4 | 3090 | set_radix (const char *arg, int from_tty) |
c906108c SS |
3091 | { |
3092 | unsigned radix; | |
3093 | ||
bb518678 | 3094 | radix = (arg == NULL) ? 10 : parse_and_eval_long (arg); |
c906108c SS |
3095 | set_output_radix_1 (0, radix); |
3096 | set_input_radix_1 (0, radix); | |
3097 | if (from_tty) | |
3098 | { | |
3e43a32a MS |
3099 | printf_filtered (_("Input and output radices now set to " |
3100 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3101 | radix, radix, radix); |
3102 | } | |
3103 | } | |
3104 | ||
581e13c1 | 3105 | /* Show both the input and output radices. */ |
c906108c | 3106 | |
c906108c | 3107 | static void |
b0a8e6c4 | 3108 | show_radix (const char *arg, int from_tty) |
c906108c SS |
3109 | { |
3110 | if (from_tty) | |
3111 | { | |
3112 | if (input_radix == output_radix) | |
3113 | { | |
3e43a32a MS |
3114 | printf_filtered (_("Input and output radices set to " |
3115 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
3116 | input_radix, input_radix, input_radix); |
3117 | } | |
3118 | else | |
3119 | { | |
3e43a32a MS |
3120 | printf_filtered (_("Input radix set to decimal " |
3121 | "%u, hex %x, octal %o.\n"), | |
c906108c | 3122 | input_radix, input_radix, input_radix); |
3e43a32a MS |
3123 | printf_filtered (_("Output radix set to decimal " |
3124 | "%u, hex %x, octal %o.\n"), | |
c906108c SS |
3125 | output_radix, output_radix, output_radix); |
3126 | } | |
3127 | } | |
3128 | } | |
c906108c | 3129 | \f |
c5aa993b | 3130 | |
c906108c | 3131 | static void |
fba45db2 | 3132 | set_print (char *arg, int from_tty) |
c906108c SS |
3133 | { |
3134 | printf_unfiltered ( | |
c5aa993b | 3135 | "\"set print\" must be followed by the name of a print subcommand.\n"); |
635c7e8a | 3136 | help_list (setprintlist, "set print ", all_commands, gdb_stdout); |
c906108c SS |
3137 | } |
3138 | ||
c906108c | 3139 | static void |
fba45db2 | 3140 | show_print (char *args, int from_tty) |
c906108c SS |
3141 | { |
3142 | cmd_show_list (showprintlist, from_tty, ""); | |
3143 | } | |
e7045703 DE |
3144 | |
3145 | static void | |
3146 | set_print_raw (char *arg, int from_tty) | |
3147 | { | |
3148 | printf_unfiltered ( | |
3149 | "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n"); | |
635c7e8a | 3150 | help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout); |
e7045703 DE |
3151 | } |
3152 | ||
3153 | static void | |
3154 | show_print_raw (char *args, int from_tty) | |
3155 | { | |
3156 | cmd_show_list (showprintrawlist, from_tty, ""); | |
3157 | } | |
3158 | ||
c906108c SS |
3159 | \f |
3160 | void | |
fba45db2 | 3161 | _initialize_valprint (void) |
c906108c | 3162 | { |
c906108c | 3163 | add_prefix_cmd ("print", no_class, set_print, |
1bedd215 | 3164 | _("Generic command for setting how things print."), |
c906108c | 3165 | &setprintlist, "set print ", 0, &setlist); |
c5aa993b | 3166 | add_alias_cmd ("p", "print", no_class, 1, &setlist); |
581e13c1 | 3167 | /* Prefer set print to set prompt. */ |
c906108c SS |
3168 | add_alias_cmd ("pr", "print", no_class, 1, &setlist); |
3169 | ||
3170 | add_prefix_cmd ("print", no_class, show_print, | |
1bedd215 | 3171 | _("Generic command for showing print settings."), |
c906108c | 3172 | &showprintlist, "show print ", 0, &showlist); |
c5aa993b JM |
3173 | add_alias_cmd ("p", "print", no_class, 1, &showlist); |
3174 | add_alias_cmd ("pr", "print", no_class, 1, &showlist); | |
c906108c | 3175 | |
e7045703 DE |
3176 | add_prefix_cmd ("raw", no_class, set_print_raw, |
3177 | _("\ | |
3178 | Generic command for setting what things to print in \"raw\" mode."), | |
3179 | &setprintrawlist, "set print raw ", 0, &setprintlist); | |
3180 | add_prefix_cmd ("raw", no_class, show_print_raw, | |
3181 | _("Generic command for showing \"print raw\" settings."), | |
3182 | &showprintrawlist, "show print raw ", 0, &showprintlist); | |
3183 | ||
79a45b7d TT |
3184 | add_setshow_uinteger_cmd ("elements", no_class, |
3185 | &user_print_options.print_max, _("\ | |
35096d9d AC |
3186 | Set limit on string chars or array elements to print."), _("\ |
3187 | Show limit on string chars or array elements to print."), _("\ | |
f81d1120 | 3188 | \"set print elements unlimited\" causes there to be no limit."), |
35096d9d | 3189 | NULL, |
920d2a44 | 3190 | show_print_max, |
35096d9d | 3191 | &setprintlist, &showprintlist); |
c906108c | 3192 | |
79a45b7d TT |
3193 | add_setshow_boolean_cmd ("null-stop", no_class, |
3194 | &user_print_options.stop_print_at_null, _("\ | |
5bf193a2 AC |
3195 | Set printing of char arrays to stop at first null char."), _("\ |
3196 | Show printing of char arrays to stop at first null char."), NULL, | |
3197 | NULL, | |
920d2a44 | 3198 | show_stop_print_at_null, |
5bf193a2 | 3199 | &setprintlist, &showprintlist); |
c906108c | 3200 | |
35096d9d | 3201 | add_setshow_uinteger_cmd ("repeats", no_class, |
79a45b7d | 3202 | &user_print_options.repeat_count_threshold, _("\ |
35096d9d AC |
3203 | Set threshold for repeated print elements."), _("\ |
3204 | Show threshold for repeated print elements."), _("\ | |
f81d1120 | 3205 | \"set print repeats unlimited\" causes all elements to be individually printed."), |
35096d9d | 3206 | NULL, |
920d2a44 | 3207 | show_repeat_count_threshold, |
35096d9d | 3208 | &setprintlist, &showprintlist); |
c906108c | 3209 | |
79a45b7d | 3210 | add_setshow_boolean_cmd ("pretty", class_support, |
2a998fc0 DE |
3211 | &user_print_options.prettyformat_structs, _("\ |
3212 | Set pretty formatting of structures."), _("\ | |
3213 | Show pretty formatting of structures."), NULL, | |
5bf193a2 | 3214 | NULL, |
2a998fc0 | 3215 | show_prettyformat_structs, |
5bf193a2 AC |
3216 | &setprintlist, &showprintlist); |
3217 | ||
79a45b7d TT |
3218 | add_setshow_boolean_cmd ("union", class_support, |
3219 | &user_print_options.unionprint, _("\ | |
5bf193a2 AC |
3220 | Set printing of unions interior to structures."), _("\ |
3221 | Show printing of unions interior to structures."), NULL, | |
3222 | NULL, | |
920d2a44 | 3223 | show_unionprint, |
5bf193a2 AC |
3224 | &setprintlist, &showprintlist); |
3225 | ||
79a45b7d | 3226 | add_setshow_boolean_cmd ("array", class_support, |
2a998fc0 DE |
3227 | &user_print_options.prettyformat_arrays, _("\ |
3228 | Set pretty formatting of arrays."), _("\ | |
3229 | Show pretty formatting of arrays."), NULL, | |
5bf193a2 | 3230 | NULL, |
2a998fc0 | 3231 | show_prettyformat_arrays, |
5bf193a2 AC |
3232 | &setprintlist, &showprintlist); |
3233 | ||
79a45b7d TT |
3234 | add_setshow_boolean_cmd ("address", class_support, |
3235 | &user_print_options.addressprint, _("\ | |
5bf193a2 AC |
3236 | Set printing of addresses."), _("\ |
3237 | Show printing of addresses."), NULL, | |
3238 | NULL, | |
920d2a44 | 3239 | show_addressprint, |
5bf193a2 | 3240 | &setprintlist, &showprintlist); |
c906108c | 3241 | |
9cb709b6 TT |
3242 | add_setshow_boolean_cmd ("symbol", class_support, |
3243 | &user_print_options.symbol_print, _("\ | |
3244 | Set printing of symbol names when printing pointers."), _("\ | |
3245 | Show printing of symbol names when printing pointers."), | |
3246 | NULL, NULL, | |
3247 | show_symbol_print, | |
3248 | &setprintlist, &showprintlist); | |
3249 | ||
1e8fb976 PA |
3250 | add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1, |
3251 | _("\ | |
35096d9d AC |
3252 | Set default input radix for entering numbers."), _("\ |
3253 | Show default input radix for entering numbers."), NULL, | |
1e8fb976 PA |
3254 | set_input_radix, |
3255 | show_input_radix, | |
3256 | &setlist, &showlist); | |
35096d9d | 3257 | |
1e8fb976 PA |
3258 | add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1, |
3259 | _("\ | |
35096d9d AC |
3260 | Set default output radix for printing of values."), _("\ |
3261 | Show default output radix for printing of values."), NULL, | |
1e8fb976 PA |
3262 | set_output_radix, |
3263 | show_output_radix, | |
3264 | &setlist, &showlist); | |
c906108c | 3265 | |
cb1a6d5f AC |
3266 | /* The "set radix" and "show radix" commands are special in that |
3267 | they are like normal set and show commands but allow two normally | |
3268 | independent variables to be either set or shown with a single | |
b66df561 | 3269 | command. So the usual deprecated_add_set_cmd() and [deleted] |
581e13c1 | 3270 | add_show_from_set() commands aren't really appropriate. */ |
b66df561 AC |
3271 | /* FIXME: i18n: With the new add_setshow_integer command, that is no |
3272 | longer true - show can display anything. */ | |
1a966eab AC |
3273 | add_cmd ("radix", class_support, set_radix, _("\ |
3274 | Set default input and output number radices.\n\ | |
c906108c | 3275 | Use 'set input-radix' or 'set output-radix' to independently set each.\n\ |
1a966eab | 3276 | Without an argument, sets both radices back to the default value of 10."), |
c906108c | 3277 | &setlist); |
1a966eab AC |
3278 | add_cmd ("radix", class_support, show_radix, _("\ |
3279 | Show the default input and output number radices.\n\ | |
3280 | Use 'show input-radix' or 'show output-radix' to independently show each."), | |
c906108c SS |
3281 | &showlist); |
3282 | ||
e79af960 | 3283 | add_setshow_boolean_cmd ("array-indexes", class_support, |
79a45b7d | 3284 | &user_print_options.print_array_indexes, _("\ |
e79af960 JB |
3285 | Set printing of array indexes."), _("\ |
3286 | Show printing of array indexes"), NULL, NULL, show_print_array_indexes, | |
3287 | &setprintlist, &showprintlist); | |
c906108c | 3288 | } |