Commit | Line | Data |
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c906108c | 1 | /* Print values for GDB, the GNU debugger. |
5c1c87f0 | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
0fb0cc75 | 4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
7b6bb8da | 5 | 2009, 2010, 2011 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "value.h" | |
27 | #include "gdbcore.h" | |
28 | #include "gdbcmd.h" | |
29 | #include "target.h" | |
c906108c | 30 | #include "language.h" |
c906108c SS |
31 | #include "annotate.h" |
32 | #include "valprint.h" | |
39424bef | 33 | #include "floatformat.h" |
d16aafd8 | 34 | #include "doublest.h" |
19ca80ba | 35 | #include "exceptions.h" |
7678ef8f | 36 | #include "dfp.h" |
a6bac58e | 37 | #include "python/python.h" |
0c3acc09 | 38 | #include "ada-lang.h" |
c906108c SS |
39 | |
40 | #include <errno.h> | |
41 | ||
42 | /* Prototypes for local functions */ | |
43 | ||
777ea8f1 | 44 | static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
917317f4 JM |
45 | int len, int *errnoptr); |
46 | ||
a14ed312 | 47 | static void show_print (char *, int); |
c906108c | 48 | |
a14ed312 | 49 | static void set_print (char *, int); |
c906108c | 50 | |
a14ed312 | 51 | static void set_radix (char *, int); |
c906108c | 52 | |
a14ed312 | 53 | static void show_radix (char *, int); |
c906108c | 54 | |
a14ed312 | 55 | static void set_input_radix (char *, int, struct cmd_list_element *); |
c906108c | 56 | |
a14ed312 | 57 | static void set_input_radix_1 (int, unsigned); |
c906108c | 58 | |
a14ed312 | 59 | static void set_output_radix (char *, int, struct cmd_list_element *); |
c906108c | 60 | |
a14ed312 | 61 | static void set_output_radix_1 (int, unsigned); |
c906108c | 62 | |
a14ed312 | 63 | void _initialize_valprint (void); |
c906108c | 64 | |
581e13c1 | 65 | #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ |
79a45b7d TT |
66 | |
67 | struct value_print_options user_print_options = | |
68 | { | |
69 | Val_pretty_default, /* pretty */ | |
70 | 0, /* prettyprint_arrays */ | |
71 | 0, /* prettyprint_structs */ | |
72 | 0, /* vtblprint */ | |
73 | 1, /* unionprint */ | |
74 | 1, /* addressprint */ | |
75 | 0, /* objectprint */ | |
76 | PRINT_MAX_DEFAULT, /* print_max */ | |
77 | 10, /* repeat_count_threshold */ | |
78 | 0, /* output_format */ | |
79 | 0, /* format */ | |
80 | 0, /* stop_print_at_null */ | |
81 | 0, /* inspect_it */ | |
82 | 0, /* print_array_indexes */ | |
83 | 0, /* deref_ref */ | |
84 | 1, /* static_field_print */ | |
a6bac58e TT |
85 | 1, /* pascal_static_field_print */ |
86 | 0, /* raw */ | |
87 | 0 /* summary */ | |
79a45b7d TT |
88 | }; |
89 | ||
90 | /* Initialize *OPTS to be a copy of the user print options. */ | |
91 | void | |
92 | get_user_print_options (struct value_print_options *opts) | |
93 | { | |
94 | *opts = user_print_options; | |
95 | } | |
96 | ||
97 | /* Initialize *OPTS to be a copy of the user print options, but with | |
98 | pretty-printing disabled. */ | |
99 | void | |
100 | get_raw_print_options (struct value_print_options *opts) | |
101 | { | |
102 | *opts = user_print_options; | |
103 | opts->pretty = Val_no_prettyprint; | |
104 | } | |
105 | ||
106 | /* Initialize *OPTS to be a copy of the user print options, but using | |
107 | FORMAT as the formatting option. */ | |
108 | void | |
109 | get_formatted_print_options (struct value_print_options *opts, | |
110 | char format) | |
111 | { | |
112 | *opts = user_print_options; | |
113 | opts->format = format; | |
114 | } | |
115 | ||
920d2a44 AC |
116 | static void |
117 | show_print_max (struct ui_file *file, int from_tty, | |
118 | struct cmd_list_element *c, const char *value) | |
119 | { | |
3e43a32a MS |
120 | fprintf_filtered (file, |
121 | _("Limit on string chars or array " | |
122 | "elements to print is %s.\n"), | |
920d2a44 AC |
123 | value); |
124 | } | |
125 | ||
c906108c SS |
126 | |
127 | /* Default input and output radixes, and output format letter. */ | |
128 | ||
129 | unsigned input_radix = 10; | |
920d2a44 AC |
130 | static void |
131 | show_input_radix (struct ui_file *file, int from_tty, | |
132 | struct cmd_list_element *c, const char *value) | |
133 | { | |
3e43a32a MS |
134 | fprintf_filtered (file, |
135 | _("Default input radix for entering numbers is %s.\n"), | |
920d2a44 AC |
136 | value); |
137 | } | |
138 | ||
c906108c | 139 | unsigned output_radix = 10; |
920d2a44 AC |
140 | static void |
141 | show_output_radix (struct ui_file *file, int from_tty, | |
142 | struct cmd_list_element *c, const char *value) | |
143 | { | |
3e43a32a MS |
144 | fprintf_filtered (file, |
145 | _("Default output radix for printing of values is %s.\n"), | |
920d2a44 AC |
146 | value); |
147 | } | |
c906108c | 148 | |
e79af960 JB |
149 | /* By default we print arrays without printing the index of each element in |
150 | the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */ | |
151 | ||
e79af960 JB |
152 | static void |
153 | show_print_array_indexes (struct ui_file *file, int from_tty, | |
154 | struct cmd_list_element *c, const char *value) | |
155 | { | |
156 | fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value); | |
157 | } | |
158 | ||
c906108c SS |
159 | /* Print repeat counts if there are more than this many repetitions of an |
160 | element in an array. Referenced by the low level language dependent | |
581e13c1 | 161 | print routines. */ |
c906108c | 162 | |
920d2a44 AC |
163 | static void |
164 | show_repeat_count_threshold (struct ui_file *file, int from_tty, | |
165 | struct cmd_list_element *c, const char *value) | |
166 | { | |
167 | fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"), | |
168 | value); | |
169 | } | |
c906108c | 170 | |
581e13c1 | 171 | /* If nonzero, stops printing of char arrays at first null. */ |
c906108c | 172 | |
920d2a44 AC |
173 | static void |
174 | show_stop_print_at_null (struct ui_file *file, int from_tty, | |
175 | struct cmd_list_element *c, const char *value) | |
176 | { | |
3e43a32a MS |
177 | fprintf_filtered (file, |
178 | _("Printing of char arrays to stop " | |
179 | "at first null char is %s.\n"), | |
920d2a44 AC |
180 | value); |
181 | } | |
c906108c | 182 | |
581e13c1 | 183 | /* Controls pretty printing of structures. */ |
c906108c | 184 | |
920d2a44 AC |
185 | static void |
186 | show_prettyprint_structs (struct ui_file *file, int from_tty, | |
187 | struct cmd_list_element *c, const char *value) | |
188 | { | |
189 | fprintf_filtered (file, _("Prettyprinting of structures is %s.\n"), value); | |
190 | } | |
c906108c SS |
191 | |
192 | /* Controls pretty printing of arrays. */ | |
193 | ||
920d2a44 AC |
194 | static void |
195 | show_prettyprint_arrays (struct ui_file *file, int from_tty, | |
196 | struct cmd_list_element *c, const char *value) | |
197 | { | |
198 | fprintf_filtered (file, _("Prettyprinting of arrays is %s.\n"), value); | |
199 | } | |
c906108c SS |
200 | |
201 | /* If nonzero, causes unions inside structures or other unions to be | |
581e13c1 | 202 | printed. */ |
c906108c | 203 | |
920d2a44 AC |
204 | static void |
205 | show_unionprint (struct ui_file *file, int from_tty, | |
206 | struct cmd_list_element *c, const char *value) | |
207 | { | |
3e43a32a MS |
208 | fprintf_filtered (file, |
209 | _("Printing of unions interior to structures is %s.\n"), | |
920d2a44 AC |
210 | value); |
211 | } | |
c906108c | 212 | |
581e13c1 | 213 | /* If nonzero, causes machine addresses to be printed in certain contexts. */ |
c906108c | 214 | |
920d2a44 AC |
215 | static void |
216 | show_addressprint (struct ui_file *file, int from_tty, | |
217 | struct cmd_list_element *c, const char *value) | |
218 | { | |
219 | fprintf_filtered (file, _("Printing of addresses is %s.\n"), value); | |
220 | } | |
c906108c | 221 | \f |
c5aa993b | 222 | |
a6bac58e TT |
223 | /* A helper function for val_print. When printing in "summary" mode, |
224 | we want to print scalar arguments, but not aggregate arguments. | |
225 | This function distinguishes between the two. */ | |
226 | ||
227 | static int | |
228 | scalar_type_p (struct type *type) | |
229 | { | |
230 | CHECK_TYPEDEF (type); | |
231 | while (TYPE_CODE (type) == TYPE_CODE_REF) | |
232 | { | |
233 | type = TYPE_TARGET_TYPE (type); | |
234 | CHECK_TYPEDEF (type); | |
235 | } | |
236 | switch (TYPE_CODE (type)) | |
237 | { | |
238 | case TYPE_CODE_ARRAY: | |
239 | case TYPE_CODE_STRUCT: | |
240 | case TYPE_CODE_UNION: | |
241 | case TYPE_CODE_SET: | |
242 | case TYPE_CODE_STRING: | |
243 | case TYPE_CODE_BITSTRING: | |
244 | return 0; | |
245 | default: | |
246 | return 1; | |
247 | } | |
248 | } | |
249 | ||
0e03807e TT |
250 | /* Helper function to check the validity of some bits of a value. |
251 | ||
252 | If TYPE represents some aggregate type (e.g., a structure), return 1. | |
253 | ||
254 | Otherwise, any of the bytes starting at OFFSET and extending for | |
255 | TYPE_LENGTH(TYPE) bytes are invalid, print a message to STREAM and | |
256 | return 0. The checking is done using FUNCS. | |
257 | ||
258 | Otherwise, return 1. */ | |
259 | ||
260 | static int | |
261 | valprint_check_validity (struct ui_file *stream, | |
262 | struct type *type, | |
4e07d55f | 263 | int embedded_offset, |
0e03807e TT |
264 | const struct value *val) |
265 | { | |
266 | CHECK_TYPEDEF (type); | |
267 | ||
268 | if (TYPE_CODE (type) != TYPE_CODE_UNION | |
269 | && TYPE_CODE (type) != TYPE_CODE_STRUCT | |
270 | && TYPE_CODE (type) != TYPE_CODE_ARRAY) | |
271 | { | |
4e07d55f PA |
272 | if (!value_bits_valid (val, TARGET_CHAR_BIT * embedded_offset, |
273 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
0e03807e | 274 | { |
585fdaa1 | 275 | val_print_optimized_out (stream); |
0e03807e TT |
276 | return 0; |
277 | } | |
8cf6f0b1 | 278 | |
4e07d55f | 279 | if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset, |
8cf6f0b1 TT |
280 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) |
281 | { | |
282 | fputs_filtered (_("<synthetic pointer>"), stream); | |
283 | return 0; | |
284 | } | |
4e07d55f PA |
285 | |
286 | if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) | |
287 | { | |
288 | val_print_unavailable (stream); | |
289 | return 0; | |
290 | } | |
0e03807e TT |
291 | } |
292 | ||
293 | return 1; | |
294 | } | |
295 | ||
585fdaa1 PA |
296 | void |
297 | val_print_optimized_out (struct ui_file *stream) | |
298 | { | |
299 | fprintf_filtered (stream, _("<optimized out>")); | |
300 | } | |
301 | ||
4e07d55f PA |
302 | void |
303 | val_print_unavailable (struct ui_file *stream) | |
304 | { | |
305 | fprintf_filtered (stream, _("<unavailable>")); | |
306 | } | |
307 | ||
8af8e3bc PA |
308 | void |
309 | val_print_invalid_address (struct ui_file *stream) | |
310 | { | |
311 | fprintf_filtered (stream, _("<invalid address>")); | |
312 | } | |
313 | ||
32b72a42 PA |
314 | /* Print using the given LANGUAGE the data of type TYPE located at |
315 | VALADDR + EMBEDDED_OFFSET (within GDB), which came from the | |
316 | inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream | |
317 | STREAM according to OPTIONS. VAL is the whole object that came | |
318 | from ADDRESS. VALADDR must point to the head of VAL's contents | |
319 | buffer. | |
320 | ||
321 | The language printers will pass down an adjusted EMBEDDED_OFFSET to | |
322 | further helper subroutines as subfields of TYPE are printed. In | |
323 | such cases, VALADDR is passed down unadjusted, as well as VAL, so | |
324 | that VAL can be queried for metadata about the contents data being | |
325 | printed, using EMBEDDED_OFFSET as an offset into VAL's contents | |
326 | buffer. For example: "has this field been optimized out", or "I'm | |
327 | printing an object while inspecting a traceframe; has this | |
328 | particular piece of data been collected?". | |
329 | ||
330 | RECURSE indicates the amount of indentation to supply before | |
331 | continuation lines; this amount is roughly twice the value of | |
332 | RECURSE. | |
333 | ||
334 | If the data is printed as a string, returns the number of string | |
335 | characters printed. */ | |
c906108c SS |
336 | |
337 | int | |
fc1a4b47 | 338 | val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
79a45b7d | 339 | CORE_ADDR address, struct ui_file *stream, int recurse, |
0e03807e | 340 | const struct value *val, |
79a45b7d | 341 | const struct value_print_options *options, |
d8ca156b | 342 | const struct language_defn *language) |
c906108c | 343 | { |
19ca80ba DJ |
344 | volatile struct gdb_exception except; |
345 | int ret = 0; | |
79a45b7d | 346 | struct value_print_options local_opts = *options; |
c906108c | 347 | struct type *real_type = check_typedef (type); |
79a45b7d TT |
348 | |
349 | if (local_opts.pretty == Val_pretty_default) | |
350 | local_opts.pretty = (local_opts.prettyprint_structs | |
351 | ? Val_prettyprint : Val_no_prettyprint); | |
c5aa993b | 352 | |
c906108c SS |
353 | QUIT; |
354 | ||
355 | /* Ensure that the type is complete and not just a stub. If the type is | |
356 | only a stub and we can't find and substitute its complete type, then | |
357 | print appropriate string and return. */ | |
358 | ||
74a9bb82 | 359 | if (TYPE_STUB (real_type)) |
c906108c | 360 | { |
0e03807e | 361 | fprintf_filtered (stream, _("<incomplete type>")); |
c906108c SS |
362 | gdb_flush (stream); |
363 | return (0); | |
364 | } | |
c5aa993b | 365 | |
0e03807e TT |
366 | if (!valprint_check_validity (stream, real_type, embedded_offset, val)) |
367 | return 0; | |
368 | ||
a6bac58e TT |
369 | if (!options->raw) |
370 | { | |
371 | ret = apply_val_pretty_printer (type, valaddr, embedded_offset, | |
0e03807e TT |
372 | address, stream, recurse, |
373 | val, options, language); | |
a6bac58e TT |
374 | if (ret) |
375 | return ret; | |
376 | } | |
377 | ||
378 | /* Handle summary mode. If the value is a scalar, print it; | |
379 | otherwise, print an ellipsis. */ | |
380 | if (options->summary && !scalar_type_p (type)) | |
381 | { | |
382 | fprintf_filtered (stream, "..."); | |
383 | return 0; | |
384 | } | |
385 | ||
19ca80ba DJ |
386 | TRY_CATCH (except, RETURN_MASK_ERROR) |
387 | { | |
d8ca156b | 388 | ret = language->la_val_print (type, valaddr, embedded_offset, address, |
0e03807e TT |
389 | stream, recurse, val, |
390 | &local_opts); | |
19ca80ba DJ |
391 | } |
392 | if (except.reason < 0) | |
393 | fprintf_filtered (stream, _("<error reading variable>")); | |
394 | ||
395 | return ret; | |
c906108c SS |
396 | } |
397 | ||
806048c6 DJ |
398 | /* Check whether the value VAL is printable. Return 1 if it is; |
399 | return 0 and print an appropriate error message to STREAM if it | |
400 | is not. */ | |
c906108c | 401 | |
806048c6 DJ |
402 | static int |
403 | value_check_printable (struct value *val, struct ui_file *stream) | |
c906108c SS |
404 | { |
405 | if (val == 0) | |
406 | { | |
806048c6 | 407 | fprintf_filtered (stream, _("<address of value unknown>")); |
c906108c SS |
408 | return 0; |
409 | } | |
806048c6 | 410 | |
0e03807e | 411 | if (value_entirely_optimized_out (val)) |
c906108c | 412 | { |
585fdaa1 | 413 | val_print_optimized_out (stream); |
c906108c SS |
414 | return 0; |
415 | } | |
806048c6 | 416 | |
bc3b79fd TJB |
417 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION) |
418 | { | |
419 | fprintf_filtered (stream, _("<internal function %s>"), | |
420 | value_internal_function_name (val)); | |
421 | return 0; | |
422 | } | |
423 | ||
806048c6 DJ |
424 | return 1; |
425 | } | |
426 | ||
d8ca156b | 427 | /* Print using the given LANGUAGE the value VAL onto stream STREAM according |
79a45b7d | 428 | to OPTIONS. |
806048c6 DJ |
429 | |
430 | If the data are a string pointer, returns the number of string characters | |
431 | printed. | |
432 | ||
433 | This is a preferable interface to val_print, above, because it uses | |
434 | GDB's value mechanism. */ | |
435 | ||
436 | int | |
79a45b7d TT |
437 | common_val_print (struct value *val, struct ui_file *stream, int recurse, |
438 | const struct value_print_options *options, | |
d8ca156b | 439 | const struct language_defn *language) |
806048c6 DJ |
440 | { |
441 | if (!value_check_printable (val, stream)) | |
442 | return 0; | |
443 | ||
0c3acc09 JB |
444 | if (language->la_language == language_ada) |
445 | /* The value might have a dynamic type, which would cause trouble | |
446 | below when trying to extract the value contents (since the value | |
447 | size is determined from the type size which is unknown). So | |
448 | get a fixed representation of our value. */ | |
449 | val = ada_to_fixed_value (val); | |
450 | ||
0e03807e | 451 | return val_print (value_type (val), value_contents_for_printing (val), |
42ae5230 | 452 | value_embedded_offset (val), value_address (val), |
0e03807e TT |
453 | stream, recurse, |
454 | val, options, language); | |
806048c6 DJ |
455 | } |
456 | ||
7348c5e1 JB |
457 | /* Print on stream STREAM the value VAL according to OPTIONS. The value |
458 | is printed using the current_language syntax. | |
459 | ||
460 | If the object printed is a string pointer, return the number of string | |
461 | bytes printed. */ | |
806048c6 DJ |
462 | |
463 | int | |
79a45b7d TT |
464 | value_print (struct value *val, struct ui_file *stream, |
465 | const struct value_print_options *options) | |
806048c6 DJ |
466 | { |
467 | if (!value_check_printable (val, stream)) | |
468 | return 0; | |
469 | ||
a6bac58e TT |
470 | if (!options->raw) |
471 | { | |
472 | int r = apply_val_pretty_printer (value_type (val), | |
0e03807e | 473 | value_contents_for_printing (val), |
a6bac58e TT |
474 | value_embedded_offset (val), |
475 | value_address (val), | |
0e03807e TT |
476 | stream, 0, |
477 | val, options, current_language); | |
a109c7c1 | 478 | |
a6bac58e TT |
479 | if (r) |
480 | return r; | |
481 | } | |
482 | ||
79a45b7d | 483 | return LA_VALUE_PRINT (val, stream, options); |
c906108c SS |
484 | } |
485 | ||
486 | /* Called by various <lang>_val_print routines to print | |
487 | TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the | |
488 | value. STREAM is where to print the value. */ | |
489 | ||
490 | void | |
fc1a4b47 | 491 | val_print_type_code_int (struct type *type, const gdb_byte *valaddr, |
fba45db2 | 492 | struct ui_file *stream) |
c906108c | 493 | { |
50810684 | 494 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
d44e8473 | 495 | |
c906108c SS |
496 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) |
497 | { | |
498 | LONGEST val; | |
499 | ||
500 | if (TYPE_UNSIGNED (type) | |
501 | && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type), | |
e17a4113 | 502 | byte_order, &val)) |
c906108c SS |
503 | { |
504 | print_longest (stream, 'u', 0, val); | |
505 | } | |
506 | else | |
507 | { | |
508 | /* Signed, or we couldn't turn an unsigned value into a | |
509 | LONGEST. For signed values, one could assume two's | |
510 | complement (a reasonable assumption, I think) and do | |
511 | better than this. */ | |
512 | print_hex_chars (stream, (unsigned char *) valaddr, | |
d44e8473 | 513 | TYPE_LENGTH (type), byte_order); |
c906108c SS |
514 | } |
515 | } | |
516 | else | |
517 | { | |
c906108c SS |
518 | print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, |
519 | unpack_long (type, valaddr)); | |
c906108c SS |
520 | } |
521 | } | |
522 | ||
4f2aea11 MK |
523 | void |
524 | val_print_type_code_flags (struct type *type, const gdb_byte *valaddr, | |
525 | struct ui_file *stream) | |
526 | { | |
befae759 | 527 | ULONGEST val = unpack_long (type, valaddr); |
4f2aea11 MK |
528 | int bitpos, nfields = TYPE_NFIELDS (type); |
529 | ||
530 | fputs_filtered ("[ ", stream); | |
531 | for (bitpos = 0; bitpos < nfields; bitpos++) | |
532 | { | |
316703b9 MK |
533 | if (TYPE_FIELD_BITPOS (type, bitpos) != -1 |
534 | && (val & ((ULONGEST)1 << bitpos))) | |
4f2aea11 MK |
535 | { |
536 | if (TYPE_FIELD_NAME (type, bitpos)) | |
537 | fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos)); | |
538 | else | |
539 | fprintf_filtered (stream, "#%d ", bitpos); | |
540 | } | |
541 | } | |
542 | fputs_filtered ("]", stream); | |
ab2188aa PA |
543 | |
544 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
545 | according to OPTIONS and SIZE on STREAM. Format i is not supported | |
546 | at this level. | |
547 | ||
548 | This is how the elements of an array or structure are printed | |
549 | with a format. */ | |
550 | } | |
551 | ||
552 | void | |
553 | val_print_scalar_formatted (struct type *type, | |
554 | const gdb_byte *valaddr, int embedded_offset, | |
555 | const struct value *val, | |
556 | const struct value_print_options *options, | |
557 | int size, | |
558 | struct ui_file *stream) | |
559 | { | |
560 | gdb_assert (val != NULL); | |
561 | gdb_assert (valaddr == value_contents_for_printing_const (val)); | |
562 | ||
563 | /* If we get here with a string format, try again without it. Go | |
564 | all the way back to the language printers, which may call us | |
565 | again. */ | |
566 | if (options->format == 's') | |
567 | { | |
568 | struct value_print_options opts = *options; | |
569 | opts.format = 0; | |
570 | opts.deref_ref = 0; | |
571 | val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts, | |
572 | current_language); | |
573 | return; | |
574 | } | |
575 | ||
576 | /* A scalar object that does not have all bits available can't be | |
577 | printed, because all bits contribute to its representation. */ | |
578 | if (!value_bits_valid (val, TARGET_CHAR_BIT * embedded_offset, | |
579 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
580 | val_print_optimized_out (stream); | |
4e07d55f PA |
581 | else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type))) |
582 | val_print_unavailable (stream); | |
ab2188aa PA |
583 | else |
584 | print_scalar_formatted (valaddr + embedded_offset, type, | |
585 | options, size, stream); | |
4f2aea11 MK |
586 | } |
587 | ||
c906108c SS |
588 | /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. |
589 | The raison d'etre of this function is to consolidate printing of | |
581e13c1 | 590 | LONG_LONG's into this one function. The format chars b,h,w,g are |
bb599908 | 591 | from print_scalar_formatted(). Numbers are printed using C |
581e13c1 | 592 | format. |
bb599908 PH |
593 | |
594 | USE_C_FORMAT means to use C format in all cases. Without it, | |
595 | 'o' and 'x' format do not include the standard C radix prefix | |
596 | (leading 0 or 0x). | |
597 | ||
598 | Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL | |
599 | and was intended to request formating according to the current | |
600 | language and would be used for most integers that GDB prints. The | |
601 | exceptional cases were things like protocols where the format of | |
602 | the integer is a protocol thing, not a user-visible thing). The | |
603 | parameter remains to preserve the information of what things might | |
604 | be printed with language-specific format, should we ever resurrect | |
581e13c1 | 605 | that capability. */ |
c906108c SS |
606 | |
607 | void | |
bb599908 | 608 | print_longest (struct ui_file *stream, int format, int use_c_format, |
fba45db2 | 609 | LONGEST val_long) |
c906108c | 610 | { |
2bfb72ee AC |
611 | const char *val; |
612 | ||
c906108c SS |
613 | switch (format) |
614 | { | |
615 | case 'd': | |
bb599908 | 616 | val = int_string (val_long, 10, 1, 0, 1); break; |
c906108c | 617 | case 'u': |
bb599908 | 618 | val = int_string (val_long, 10, 0, 0, 1); break; |
c906108c | 619 | case 'x': |
bb599908 | 620 | val = int_string (val_long, 16, 0, 0, use_c_format); break; |
c906108c | 621 | case 'b': |
bb599908 | 622 | val = int_string (val_long, 16, 0, 2, 1); break; |
c906108c | 623 | case 'h': |
bb599908 | 624 | val = int_string (val_long, 16, 0, 4, 1); break; |
c906108c | 625 | case 'w': |
bb599908 | 626 | val = int_string (val_long, 16, 0, 8, 1); break; |
c906108c | 627 | case 'g': |
bb599908 | 628 | val = int_string (val_long, 16, 0, 16, 1); break; |
c906108c SS |
629 | break; |
630 | case 'o': | |
bb599908 | 631 | val = int_string (val_long, 8, 0, 0, use_c_format); break; |
c906108c | 632 | default: |
3e43a32a MS |
633 | internal_error (__FILE__, __LINE__, |
634 | _("failed internal consistency check")); | |
bb599908 | 635 | } |
2bfb72ee | 636 | fputs_filtered (val, stream); |
c906108c SS |
637 | } |
638 | ||
c906108c SS |
639 | /* This used to be a macro, but I don't think it is called often enough |
640 | to merit such treatment. */ | |
641 | /* Convert a LONGEST to an int. This is used in contexts (e.g. number of | |
642 | arguments to a function, number in a value history, register number, etc.) | |
643 | where the value must not be larger than can fit in an int. */ | |
644 | ||
645 | int | |
fba45db2 | 646 | longest_to_int (LONGEST arg) |
c906108c | 647 | { |
581e13c1 | 648 | /* Let the compiler do the work. */ |
c906108c SS |
649 | int rtnval = (int) arg; |
650 | ||
581e13c1 | 651 | /* Check for overflows or underflows. */ |
c906108c SS |
652 | if (sizeof (LONGEST) > sizeof (int)) |
653 | { | |
654 | if (rtnval != arg) | |
655 | { | |
8a3fe4f8 | 656 | error (_("Value out of range.")); |
c906108c SS |
657 | } |
658 | } | |
659 | return (rtnval); | |
660 | } | |
661 | ||
a73c86fb AC |
662 | /* Print a floating point value of type TYPE (not always a |
663 | TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */ | |
c906108c SS |
664 | |
665 | void | |
fc1a4b47 | 666 | print_floating (const gdb_byte *valaddr, struct type *type, |
c84141d6 | 667 | struct ui_file *stream) |
c906108c SS |
668 | { |
669 | DOUBLEST doub; | |
670 | int inv; | |
a73c86fb | 671 | const struct floatformat *fmt = NULL; |
c906108c | 672 | unsigned len = TYPE_LENGTH (type); |
20389057 | 673 | enum float_kind kind; |
c5aa993b | 674 | |
a73c86fb AC |
675 | /* If it is a floating-point, check for obvious problems. */ |
676 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
677 | fmt = floatformat_from_type (type); | |
20389057 | 678 | if (fmt != NULL) |
39424bef | 679 | { |
20389057 DJ |
680 | kind = floatformat_classify (fmt, valaddr); |
681 | if (kind == float_nan) | |
682 | { | |
683 | if (floatformat_is_negative (fmt, valaddr)) | |
684 | fprintf_filtered (stream, "-"); | |
685 | fprintf_filtered (stream, "nan("); | |
686 | fputs_filtered ("0x", stream); | |
687 | fputs_filtered (floatformat_mantissa (fmt, valaddr), stream); | |
688 | fprintf_filtered (stream, ")"); | |
689 | return; | |
690 | } | |
691 | else if (kind == float_infinite) | |
692 | { | |
693 | if (floatformat_is_negative (fmt, valaddr)) | |
694 | fputs_filtered ("-", stream); | |
695 | fputs_filtered ("inf", stream); | |
696 | return; | |
697 | } | |
7355ddba | 698 | } |
c906108c | 699 | |
a73c86fb AC |
700 | /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating() |
701 | isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double | |
702 | needs to be used as that takes care of any necessary type | |
703 | conversions. Such conversions are of course direct to DOUBLEST | |
704 | and disregard any possible target floating point limitations. | |
705 | For instance, a u64 would be converted and displayed exactly on a | |
706 | host with 80 bit DOUBLEST but with loss of information on a host | |
707 | with 64 bit DOUBLEST. */ | |
c2f05ac9 | 708 | |
c906108c SS |
709 | doub = unpack_double (type, valaddr, &inv); |
710 | if (inv) | |
711 | { | |
712 | fprintf_filtered (stream, "<invalid float value>"); | |
713 | return; | |
714 | } | |
715 | ||
39424bef MK |
716 | /* FIXME: kettenis/2001-01-20: The following code makes too much |
717 | assumptions about the host and target floating point format. */ | |
718 | ||
a73c86fb | 719 | /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may |
c41b8590 | 720 | not necessarily be a TYPE_CODE_FLT, the below ignores that and |
a73c86fb AC |
721 | instead uses the type's length to determine the precision of the |
722 | floating-point value being printed. */ | |
c2f05ac9 | 723 | |
c906108c | 724 | if (len < sizeof (double)) |
c5aa993b | 725 | fprintf_filtered (stream, "%.9g", (double) doub); |
c906108c | 726 | else if (len == sizeof (double)) |
c5aa993b | 727 | fprintf_filtered (stream, "%.17g", (double) doub); |
c906108c SS |
728 | else |
729 | #ifdef PRINTF_HAS_LONG_DOUBLE | |
730 | fprintf_filtered (stream, "%.35Lg", doub); | |
731 | #else | |
39424bef MK |
732 | /* This at least wins with values that are representable as |
733 | doubles. */ | |
c906108c SS |
734 | fprintf_filtered (stream, "%.17g", (double) doub); |
735 | #endif | |
736 | } | |
737 | ||
7678ef8f TJB |
738 | void |
739 | print_decimal_floating (const gdb_byte *valaddr, struct type *type, | |
740 | struct ui_file *stream) | |
741 | { | |
e17a4113 | 742 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
7678ef8f TJB |
743 | char decstr[MAX_DECIMAL_STRING]; |
744 | unsigned len = TYPE_LENGTH (type); | |
745 | ||
e17a4113 | 746 | decimal_to_string (valaddr, len, byte_order, decstr); |
7678ef8f TJB |
747 | fputs_filtered (decstr, stream); |
748 | return; | |
749 | } | |
750 | ||
c5aa993b | 751 | void |
fc1a4b47 | 752 | print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 753 | unsigned len, enum bfd_endian byte_order) |
c906108c SS |
754 | { |
755 | ||
756 | #define BITS_IN_BYTES 8 | |
757 | ||
fc1a4b47 | 758 | const gdb_byte *p; |
745b8ca0 | 759 | unsigned int i; |
c5aa993b | 760 | int b; |
c906108c SS |
761 | |
762 | /* Declared "int" so it will be signed. | |
581e13c1 MS |
763 | This ensures that right shift will shift in zeros. */ |
764 | ||
c5aa993b | 765 | const int mask = 0x080; |
c906108c SS |
766 | |
767 | /* FIXME: We should be not printing leading zeroes in most cases. */ | |
768 | ||
d44e8473 | 769 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
770 | { |
771 | for (p = valaddr; | |
772 | p < valaddr + len; | |
773 | p++) | |
774 | { | |
c5aa993b | 775 | /* Every byte has 8 binary characters; peel off |
581e13c1 MS |
776 | and print from the MSB end. */ |
777 | ||
c5aa993b JM |
778 | for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++) |
779 | { | |
780 | if (*p & (mask >> i)) | |
781 | b = 1; | |
782 | else | |
783 | b = 0; | |
784 | ||
785 | fprintf_filtered (stream, "%1d", b); | |
786 | } | |
c906108c SS |
787 | } |
788 | } | |
789 | else | |
790 | { | |
791 | for (p = valaddr + len - 1; | |
792 | p >= valaddr; | |
793 | p--) | |
794 | { | |
c5aa993b JM |
795 | for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++) |
796 | { | |
797 | if (*p & (mask >> i)) | |
798 | b = 1; | |
799 | else | |
800 | b = 0; | |
801 | ||
802 | fprintf_filtered (stream, "%1d", b); | |
803 | } | |
c906108c SS |
804 | } |
805 | } | |
c906108c SS |
806 | } |
807 | ||
808 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
809 | Print it in octal on stream or format it in buf. */ |
810 | ||
c906108c | 811 | void |
fc1a4b47 | 812 | print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 813 | unsigned len, enum bfd_endian byte_order) |
c906108c | 814 | { |
fc1a4b47 | 815 | const gdb_byte *p; |
c906108c | 816 | unsigned char octa1, octa2, octa3, carry; |
c5aa993b JM |
817 | int cycle; |
818 | ||
c906108c SS |
819 | /* FIXME: We should be not printing leading zeroes in most cases. */ |
820 | ||
821 | ||
822 | /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track | |
823 | * the extra bits, which cycle every three bytes: | |
824 | * | |
825 | * Byte side: 0 1 2 3 | |
826 | * | | | | | |
827 | * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 | | |
828 | * | |
829 | * Octal side: 0 1 carry 3 4 carry ... | |
830 | * | |
831 | * Cycle number: 0 1 2 | |
832 | * | |
833 | * But of course we are printing from the high side, so we have to | |
834 | * figure out where in the cycle we are so that we end up with no | |
835 | * left over bits at the end. | |
836 | */ | |
837 | #define BITS_IN_OCTAL 3 | |
838 | #define HIGH_ZERO 0340 | |
839 | #define LOW_ZERO 0016 | |
840 | #define CARRY_ZERO 0003 | |
841 | #define HIGH_ONE 0200 | |
842 | #define MID_ONE 0160 | |
843 | #define LOW_ONE 0016 | |
844 | #define CARRY_ONE 0001 | |
845 | #define HIGH_TWO 0300 | |
846 | #define MID_TWO 0070 | |
847 | #define LOW_TWO 0007 | |
848 | ||
849 | /* For 32 we start in cycle 2, with two bits and one bit carry; | |
581e13c1 MS |
850 | for 64 in cycle in cycle 1, with one bit and a two bit carry. */ |
851 | ||
c906108c SS |
852 | cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL; |
853 | carry = 0; | |
c5aa993b | 854 | |
bb599908 | 855 | fputs_filtered ("0", stream); |
d44e8473 | 856 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
857 | { |
858 | for (p = valaddr; | |
859 | p < valaddr + len; | |
860 | p++) | |
861 | { | |
c5aa993b JM |
862 | switch (cycle) |
863 | { | |
864 | case 0: | |
581e13c1 MS |
865 | /* No carry in, carry out two bits. */ |
866 | ||
c5aa993b JM |
867 | octa1 = (HIGH_ZERO & *p) >> 5; |
868 | octa2 = (LOW_ZERO & *p) >> 2; | |
869 | carry = (CARRY_ZERO & *p); | |
870 | fprintf_filtered (stream, "%o", octa1); | |
871 | fprintf_filtered (stream, "%o", octa2); | |
872 | break; | |
873 | ||
874 | case 1: | |
581e13c1 MS |
875 | /* Carry in two bits, carry out one bit. */ |
876 | ||
c5aa993b JM |
877 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
878 | octa2 = (MID_ONE & *p) >> 4; | |
879 | octa3 = (LOW_ONE & *p) >> 1; | |
880 | carry = (CARRY_ONE & *p); | |
881 | fprintf_filtered (stream, "%o", octa1); | |
882 | fprintf_filtered (stream, "%o", octa2); | |
883 | fprintf_filtered (stream, "%o", octa3); | |
884 | break; | |
885 | ||
886 | case 2: | |
581e13c1 MS |
887 | /* Carry in one bit, no carry out. */ |
888 | ||
c5aa993b JM |
889 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
890 | octa2 = (MID_TWO & *p) >> 3; | |
891 | octa3 = (LOW_TWO & *p); | |
892 | carry = 0; | |
893 | fprintf_filtered (stream, "%o", octa1); | |
894 | fprintf_filtered (stream, "%o", octa2); | |
895 | fprintf_filtered (stream, "%o", octa3); | |
896 | break; | |
897 | ||
898 | default: | |
8a3fe4f8 | 899 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
900 | } |
901 | ||
902 | cycle++; | |
903 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
904 | } |
905 | } | |
906 | else | |
907 | { | |
908 | for (p = valaddr + len - 1; | |
909 | p >= valaddr; | |
910 | p--) | |
911 | { | |
c5aa993b JM |
912 | switch (cycle) |
913 | { | |
914 | case 0: | |
915 | /* Carry out, no carry in */ | |
581e13c1 | 916 | |
c5aa993b JM |
917 | octa1 = (HIGH_ZERO & *p) >> 5; |
918 | octa2 = (LOW_ZERO & *p) >> 2; | |
919 | carry = (CARRY_ZERO & *p); | |
920 | fprintf_filtered (stream, "%o", octa1); | |
921 | fprintf_filtered (stream, "%o", octa2); | |
922 | break; | |
923 | ||
924 | case 1: | |
925 | /* Carry in, carry out */ | |
581e13c1 | 926 | |
c5aa993b JM |
927 | octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7); |
928 | octa2 = (MID_ONE & *p) >> 4; | |
929 | octa3 = (LOW_ONE & *p) >> 1; | |
930 | carry = (CARRY_ONE & *p); | |
931 | fprintf_filtered (stream, "%o", octa1); | |
932 | fprintf_filtered (stream, "%o", octa2); | |
933 | fprintf_filtered (stream, "%o", octa3); | |
934 | break; | |
935 | ||
936 | case 2: | |
937 | /* Carry in, no carry out */ | |
581e13c1 | 938 | |
c5aa993b JM |
939 | octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6); |
940 | octa2 = (MID_TWO & *p) >> 3; | |
941 | octa3 = (LOW_TWO & *p); | |
942 | carry = 0; | |
943 | fprintf_filtered (stream, "%o", octa1); | |
944 | fprintf_filtered (stream, "%o", octa2); | |
945 | fprintf_filtered (stream, "%o", octa3); | |
946 | break; | |
947 | ||
948 | default: | |
8a3fe4f8 | 949 | error (_("Internal error in octal conversion;")); |
c5aa993b JM |
950 | } |
951 | ||
952 | cycle++; | |
953 | cycle = cycle % BITS_IN_OCTAL; | |
c906108c SS |
954 | } |
955 | } | |
956 | ||
c906108c SS |
957 | } |
958 | ||
959 | /* VALADDR points to an integer of LEN bytes. | |
581e13c1 MS |
960 | Print it in decimal on stream or format it in buf. */ |
961 | ||
c906108c | 962 | void |
fc1a4b47 | 963 | print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 964 | unsigned len, enum bfd_endian byte_order) |
c906108c SS |
965 | { |
966 | #define TEN 10 | |
c5aa993b | 967 | #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */ |
c906108c SS |
968 | #define CARRY_LEFT( x ) ((x) % TEN) |
969 | #define SHIFT( x ) ((x) << 4) | |
c906108c SS |
970 | #define LOW_NIBBLE( x ) ( (x) & 0x00F) |
971 | #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4) | |
972 | ||
fc1a4b47 | 973 | const gdb_byte *p; |
c906108c | 974 | unsigned char *digits; |
c5aa993b JM |
975 | int carry; |
976 | int decimal_len; | |
977 | int i, j, decimal_digits; | |
978 | int dummy; | |
979 | int flip; | |
980 | ||
c906108c | 981 | /* Base-ten number is less than twice as many digits |
581e13c1 MS |
982 | as the base 16 number, which is 2 digits per byte. */ |
983 | ||
c906108c | 984 | decimal_len = len * 2 * 2; |
3c37485b | 985 | digits = xmalloc (decimal_len); |
c906108c | 986 | |
c5aa993b JM |
987 | for (i = 0; i < decimal_len; i++) |
988 | { | |
c906108c | 989 | digits[i] = 0; |
c5aa993b | 990 | } |
c906108c | 991 | |
c906108c SS |
992 | /* Ok, we have an unknown number of bytes of data to be printed in |
993 | * decimal. | |
994 | * | |
995 | * Given a hex number (in nibbles) as XYZ, we start by taking X and | |
996 | * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply | |
997 | * the nibbles by 16, add Y and re-decimalize. Repeat with Z. | |
998 | * | |
999 | * The trick is that "digits" holds a base-10 number, but sometimes | |
581e13c1 | 1000 | * the individual digits are > 10. |
c906108c SS |
1001 | * |
1002 | * Outer loop is per nibble (hex digit) of input, from MSD end to | |
1003 | * LSD end. | |
1004 | */ | |
c5aa993b | 1005 | decimal_digits = 0; /* Number of decimal digits so far */ |
d44e8473 | 1006 | p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1; |
c906108c | 1007 | flip = 0; |
d44e8473 | 1008 | while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr)) |
c5aa993b | 1009 | { |
c906108c SS |
1010 | /* |
1011 | * Multiply current base-ten number by 16 in place. | |
1012 | * Each digit was between 0 and 9, now is between | |
1013 | * 0 and 144. | |
1014 | */ | |
c5aa993b JM |
1015 | for (j = 0; j < decimal_digits; j++) |
1016 | { | |
1017 | digits[j] = SHIFT (digits[j]); | |
1018 | } | |
1019 | ||
c906108c SS |
1020 | /* Take the next nibble off the input and add it to what |
1021 | * we've got in the LSB position. Bottom 'digit' is now | |
1022 | * between 0 and 159. | |
1023 | * | |
1024 | * "flip" is used to run this loop twice for each byte. | |
1025 | */ | |
c5aa993b JM |
1026 | if (flip == 0) |
1027 | { | |
581e13c1 MS |
1028 | /* Take top nibble. */ |
1029 | ||
c5aa993b JM |
1030 | digits[0] += HIGH_NIBBLE (*p); |
1031 | flip = 1; | |
1032 | } | |
1033 | else | |
1034 | { | |
581e13c1 MS |
1035 | /* Take low nibble and bump our pointer "p". */ |
1036 | ||
c5aa993b | 1037 | digits[0] += LOW_NIBBLE (*p); |
d44e8473 MD |
1038 | if (byte_order == BFD_ENDIAN_BIG) |
1039 | p++; | |
1040 | else | |
1041 | p--; | |
c5aa993b JM |
1042 | flip = 0; |
1043 | } | |
c906108c SS |
1044 | |
1045 | /* Re-decimalize. We have to do this often enough | |
1046 | * that we don't overflow, but once per nibble is | |
1047 | * overkill. Easier this way, though. Note that the | |
1048 | * carry is often larger than 10 (e.g. max initial | |
1049 | * carry out of lowest nibble is 15, could bubble all | |
1050 | * the way up greater than 10). So we have to do | |
1051 | * the carrying beyond the last current digit. | |
1052 | */ | |
1053 | carry = 0; | |
c5aa993b JM |
1054 | for (j = 0; j < decimal_len - 1; j++) |
1055 | { | |
1056 | digits[j] += carry; | |
1057 | ||
1058 | /* "/" won't handle an unsigned char with | |
1059 | * a value that if signed would be negative. | |
1060 | * So extend to longword int via "dummy". | |
1061 | */ | |
1062 | dummy = digits[j]; | |
1063 | carry = CARRY_OUT (dummy); | |
1064 | digits[j] = CARRY_LEFT (dummy); | |
1065 | ||
1066 | if (j >= decimal_digits && carry == 0) | |
1067 | { | |
1068 | /* | |
1069 | * All higher digits are 0 and we | |
1070 | * no longer have a carry. | |
1071 | * | |
1072 | * Note: "j" is 0-based, "decimal_digits" is | |
1073 | * 1-based. | |
1074 | */ | |
1075 | decimal_digits = j + 1; | |
1076 | break; | |
1077 | } | |
1078 | } | |
1079 | } | |
c906108c SS |
1080 | |
1081 | /* Ok, now "digits" is the decimal representation, with | |
581e13c1 MS |
1082 | the "decimal_digits" actual digits. Print! */ |
1083 | ||
c5aa993b JM |
1084 | for (i = decimal_digits - 1; i >= 0; i--) |
1085 | { | |
1086 | fprintf_filtered (stream, "%1d", digits[i]); | |
1087 | } | |
b8c9b27d | 1088 | xfree (digits); |
c906108c SS |
1089 | } |
1090 | ||
1091 | /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ | |
1092 | ||
6b9acc27 | 1093 | void |
fc1a4b47 | 1094 | print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr, |
d44e8473 | 1095 | unsigned len, enum bfd_endian byte_order) |
c906108c | 1096 | { |
fc1a4b47 | 1097 | const gdb_byte *p; |
c906108c SS |
1098 | |
1099 | /* FIXME: We should be not printing leading zeroes in most cases. */ | |
1100 | ||
bb599908 | 1101 | fputs_filtered ("0x", stream); |
d44e8473 | 1102 | if (byte_order == BFD_ENDIAN_BIG) |
c906108c SS |
1103 | { |
1104 | for (p = valaddr; | |
1105 | p < valaddr + len; | |
1106 | p++) | |
1107 | { | |
1108 | fprintf_filtered (stream, "%02x", *p); | |
1109 | } | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | for (p = valaddr + len - 1; | |
1114 | p >= valaddr; | |
1115 | p--) | |
1116 | { | |
1117 | fprintf_filtered (stream, "%02x", *p); | |
1118 | } | |
1119 | } | |
c906108c SS |
1120 | } |
1121 | ||
3e43a32a | 1122 | /* VALADDR points to a char integer of LEN bytes. |
581e13c1 | 1123 | Print it out in appropriate language form on stream. |
6b9acc27 JJ |
1124 | Omit any leading zero chars. */ |
1125 | ||
1126 | void | |
6c7a06a3 TT |
1127 | print_char_chars (struct ui_file *stream, struct type *type, |
1128 | const gdb_byte *valaddr, | |
d44e8473 | 1129 | unsigned len, enum bfd_endian byte_order) |
6b9acc27 | 1130 | { |
fc1a4b47 | 1131 | const gdb_byte *p; |
6b9acc27 | 1132 | |
d44e8473 | 1133 | if (byte_order == BFD_ENDIAN_BIG) |
6b9acc27 JJ |
1134 | { |
1135 | p = valaddr; | |
1136 | while (p < valaddr + len - 1 && *p == 0) | |
1137 | ++p; | |
1138 | ||
1139 | while (p < valaddr + len) | |
1140 | { | |
6c7a06a3 | 1141 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1142 | ++p; |
1143 | } | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | p = valaddr + len - 1; | |
1148 | while (p > valaddr && *p == 0) | |
1149 | --p; | |
1150 | ||
1151 | while (p >= valaddr) | |
1152 | { | |
6c7a06a3 | 1153 | LA_EMIT_CHAR (*p, type, stream, '\''); |
6b9acc27 JJ |
1154 | --p; |
1155 | } | |
1156 | } | |
1157 | } | |
1158 | ||
79a45b7d | 1159 | /* Print on STREAM using the given OPTIONS the index for the element |
e79af960 JB |
1160 | at INDEX of an array whose index type is INDEX_TYPE. */ |
1161 | ||
1162 | void | |
1163 | maybe_print_array_index (struct type *index_type, LONGEST index, | |
79a45b7d TT |
1164 | struct ui_file *stream, |
1165 | const struct value_print_options *options) | |
e79af960 JB |
1166 | { |
1167 | struct value *index_value; | |
1168 | ||
79a45b7d | 1169 | if (!options->print_array_indexes) |
e79af960 JB |
1170 | return; |
1171 | ||
1172 | index_value = value_from_longest (index_type, index); | |
1173 | ||
79a45b7d TT |
1174 | LA_PRINT_ARRAY_INDEX (index_value, stream, options); |
1175 | } | |
e79af960 | 1176 | |
c906108c | 1177 | /* Called by various <lang>_val_print routines to print elements of an |
c5aa993b | 1178 | array in the form "<elem1>, <elem2>, <elem3>, ...". |
c906108c | 1179 | |
c5aa993b JM |
1180 | (FIXME?) Assumes array element separator is a comma, which is correct |
1181 | for all languages currently handled. | |
1182 | (FIXME?) Some languages have a notation for repeated array elements, | |
581e13c1 | 1183 | perhaps we should try to use that notation when appropriate. */ |
c906108c SS |
1184 | |
1185 | void | |
490f124f PA |
1186 | val_print_array_elements (struct type *type, |
1187 | const gdb_byte *valaddr, int embedded_offset, | |
a2bd3dcd | 1188 | CORE_ADDR address, struct ui_file *stream, |
79a45b7d | 1189 | int recurse, |
0e03807e | 1190 | const struct value *val, |
79a45b7d | 1191 | const struct value_print_options *options, |
fba45db2 | 1192 | unsigned int i) |
c906108c SS |
1193 | { |
1194 | unsigned int things_printed = 0; | |
1195 | unsigned len; | |
e79af960 | 1196 | struct type *elttype, *index_type; |
c906108c SS |
1197 | unsigned eltlen; |
1198 | /* Position of the array element we are examining to see | |
1199 | whether it is repeated. */ | |
1200 | unsigned int rep1; | |
1201 | /* Number of repetitions we have detected so far. */ | |
1202 | unsigned int reps; | |
dbc98a8b | 1203 | LONGEST low_bound, high_bound; |
c5aa993b | 1204 | |
c906108c SS |
1205 | elttype = TYPE_TARGET_TYPE (type); |
1206 | eltlen = TYPE_LENGTH (check_typedef (elttype)); | |
e79af960 | 1207 | index_type = TYPE_INDEX_TYPE (type); |
c906108c | 1208 | |
dbc98a8b | 1209 | if (get_array_bounds (type, &low_bound, &high_bound)) |
75be741b JB |
1210 | { |
1211 | /* The array length should normally be HIGH_BOUND - LOW_BOUND + 1. | |
1212 | But we have to be a little extra careful, because some languages | |
1213 | such as Ada allow LOW_BOUND to be greater than HIGH_BOUND for | |
1214 | empty arrays. In that situation, the array length is just zero, | |
1215 | not negative! */ | |
1216 | if (low_bound > high_bound) | |
1217 | len = 0; | |
1218 | else | |
1219 | len = high_bound - low_bound + 1; | |
1220 | } | |
e936309c JB |
1221 | else |
1222 | { | |
dbc98a8b KW |
1223 | warning (_("unable to get bounds of array, assuming null array")); |
1224 | low_bound = 0; | |
1225 | len = 0; | |
168de233 JB |
1226 | } |
1227 | ||
c906108c SS |
1228 | annotate_array_section_begin (i, elttype); |
1229 | ||
79a45b7d | 1230 | for (; i < len && things_printed < options->print_max; i++) |
c906108c SS |
1231 | { |
1232 | if (i != 0) | |
1233 | { | |
79a45b7d | 1234 | if (options->prettyprint_arrays) |
c906108c SS |
1235 | { |
1236 | fprintf_filtered (stream, ",\n"); | |
1237 | print_spaces_filtered (2 + 2 * recurse, stream); | |
1238 | } | |
1239 | else | |
1240 | { | |
1241 | fprintf_filtered (stream, ", "); | |
1242 | } | |
1243 | } | |
1244 | wrap_here (n_spaces (2 + 2 * recurse)); | |
dbc98a8b | 1245 | maybe_print_array_index (index_type, i + low_bound, |
79a45b7d | 1246 | stream, options); |
c906108c SS |
1247 | |
1248 | rep1 = i + 1; | |
1249 | reps = 1; | |
490f124f | 1250 | while (rep1 < len |
c8c1c22f PA |
1251 | && value_available_contents_eq (val, |
1252 | embedded_offset + i * eltlen, | |
1253 | val, | |
1254 | embedded_offset + rep1 * eltlen, | |
1255 | eltlen)) | |
c906108c SS |
1256 | { |
1257 | ++reps; | |
1258 | ++rep1; | |
1259 | } | |
1260 | ||
79a45b7d | 1261 | if (reps > options->repeat_count_threshold) |
c906108c | 1262 | { |
490f124f PA |
1263 | val_print (elttype, valaddr, embedded_offset + i * eltlen, |
1264 | address, stream, recurse + 1, val, options, | |
1265 | current_language); | |
c906108c SS |
1266 | annotate_elt_rep (reps); |
1267 | fprintf_filtered (stream, " <repeats %u times>", reps); | |
1268 | annotate_elt_rep_end (); | |
1269 | ||
1270 | i = rep1 - 1; | |
79a45b7d | 1271 | things_printed += options->repeat_count_threshold; |
c906108c SS |
1272 | } |
1273 | else | |
1274 | { | |
490f124f PA |
1275 | val_print (elttype, valaddr, embedded_offset + i * eltlen, |
1276 | address, | |
0e03807e | 1277 | stream, recurse + 1, val, options, current_language); |
c906108c SS |
1278 | annotate_elt (); |
1279 | things_printed++; | |
1280 | } | |
1281 | } | |
1282 | annotate_array_section_end (); | |
1283 | if (i < len) | |
1284 | { | |
1285 | fprintf_filtered (stream, "..."); | |
1286 | } | |
1287 | } | |
1288 | ||
917317f4 JM |
1289 | /* Read LEN bytes of target memory at address MEMADDR, placing the |
1290 | results in GDB's memory at MYADDR. Returns a count of the bytes | |
1291 | actually read, and optionally an errno value in the location | |
581e13c1 | 1292 | pointed to by ERRNOPTR if ERRNOPTR is non-null. */ |
917317f4 JM |
1293 | |
1294 | /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this | |
1295 | function be eliminated. */ | |
1296 | ||
1297 | static int | |
3e43a32a MS |
1298 | partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr, |
1299 | int len, int *errnoptr) | |
917317f4 | 1300 | { |
581e13c1 MS |
1301 | int nread; /* Number of bytes actually read. */ |
1302 | int errcode; /* Error from last read. */ | |
917317f4 | 1303 | |
581e13c1 | 1304 | /* First try a complete read. */ |
917317f4 JM |
1305 | errcode = target_read_memory (memaddr, myaddr, len); |
1306 | if (errcode == 0) | |
1307 | { | |
581e13c1 | 1308 | /* Got it all. */ |
917317f4 JM |
1309 | nread = len; |
1310 | } | |
1311 | else | |
1312 | { | |
581e13c1 | 1313 | /* Loop, reading one byte at a time until we get as much as we can. */ |
917317f4 JM |
1314 | for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--) |
1315 | { | |
1316 | errcode = target_read_memory (memaddr++, myaddr++, 1); | |
1317 | } | |
581e13c1 | 1318 | /* If an error, the last read was unsuccessful, so adjust count. */ |
917317f4 JM |
1319 | if (errcode != 0) |
1320 | { | |
1321 | nread--; | |
1322 | } | |
1323 | } | |
1324 | if (errnoptr != NULL) | |
1325 | { | |
1326 | *errnoptr = errcode; | |
1327 | } | |
1328 | return (nread); | |
1329 | } | |
1330 | ||
ae6a3a4c TJB |
1331 | /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes |
1332 | each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly | |
1333 | allocated buffer containing the string, which the caller is responsible to | |
1334 | free, and BYTES_READ will be set to the number of bytes read. Returns 0 on | |
1335 | success, or errno on failure. | |
1336 | ||
1337 | If LEN > 0, reads exactly LEN characters (including eventual NULs in | |
1338 | the middle or end of the string). If LEN is -1, stops at the first | |
1339 | null character (not necessarily the first null byte) up to a maximum | |
1340 | of FETCHLIMIT characters. Set FETCHLIMIT to UINT_MAX to read as many | |
1341 | characters as possible from the string. | |
1342 | ||
1343 | Unless an exception is thrown, BUFFER will always be allocated, even on | |
1344 | failure. In this case, some characters might have been read before the | |
1345 | failure happened. Check BYTES_READ to recognize this situation. | |
1346 | ||
1347 | Note: There was a FIXME asking to make this code use target_read_string, | |
1348 | but this function is more general (can read past null characters, up to | |
581e13c1 | 1349 | given LEN). Besides, it is used much more often than target_read_string |
ae6a3a4c TJB |
1350 | so it is more tested. Perhaps callers of target_read_string should use |
1351 | this function instead? */ | |
c906108c SS |
1352 | |
1353 | int | |
ae6a3a4c | 1354 | read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit, |
e17a4113 | 1355 | enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read) |
c906108c | 1356 | { |
ae6a3a4c TJB |
1357 | int found_nul; /* Non-zero if we found the nul char. */ |
1358 | int errcode; /* Errno returned from bad reads. */ | |
1359 | unsigned int nfetch; /* Chars to fetch / chars fetched. */ | |
1360 | unsigned int chunksize; /* Size of each fetch, in chars. */ | |
3e43a32a MS |
1361 | gdb_byte *bufptr; /* Pointer to next available byte in |
1362 | buffer. */ | |
ae6a3a4c TJB |
1363 | gdb_byte *limit; /* First location past end of fetch buffer. */ |
1364 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ | |
1365 | ||
1366 | /* Decide how large of chunks to try to read in one operation. This | |
c906108c SS |
1367 | is also pretty simple. If LEN >= zero, then we want fetchlimit chars, |
1368 | so we might as well read them all in one operation. If LEN is -1, we | |
ae6a3a4c | 1369 | are looking for a NUL terminator to end the fetching, so we might as |
c906108c SS |
1370 | well read in blocks that are large enough to be efficient, but not so |
1371 | large as to be slow if fetchlimit happens to be large. So we choose the | |
1372 | minimum of 8 and fetchlimit. We used to use 200 instead of 8 but | |
1373 | 200 is way too big for remote debugging over a serial line. */ | |
1374 | ||
1375 | chunksize = (len == -1 ? min (8, fetchlimit) : fetchlimit); | |
1376 | ||
ae6a3a4c TJB |
1377 | /* Loop until we either have all the characters, or we encounter |
1378 | some error, such as bumping into the end of the address space. */ | |
c906108c SS |
1379 | |
1380 | found_nul = 0; | |
b5096abe PM |
1381 | *buffer = NULL; |
1382 | ||
1383 | old_chain = make_cleanup (free_current_contents, buffer); | |
c906108c SS |
1384 | |
1385 | if (len > 0) | |
1386 | { | |
ae6a3a4c TJB |
1387 | *buffer = (gdb_byte *) xmalloc (len * width); |
1388 | bufptr = *buffer; | |
c906108c | 1389 | |
917317f4 | 1390 | nfetch = partial_memory_read (addr, bufptr, len * width, &errcode) |
c906108c SS |
1391 | / width; |
1392 | addr += nfetch * width; | |
1393 | bufptr += nfetch * width; | |
1394 | } | |
1395 | else if (len == -1) | |
1396 | { | |
1397 | unsigned long bufsize = 0; | |
ae6a3a4c | 1398 | |
c906108c SS |
1399 | do |
1400 | { | |
1401 | QUIT; | |
1402 | nfetch = min (chunksize, fetchlimit - bufsize); | |
1403 | ||
ae6a3a4c TJB |
1404 | if (*buffer == NULL) |
1405 | *buffer = (gdb_byte *) xmalloc (nfetch * width); | |
c906108c | 1406 | else |
b5096abe PM |
1407 | *buffer = (gdb_byte *) xrealloc (*buffer, |
1408 | (nfetch + bufsize) * width); | |
c906108c | 1409 | |
ae6a3a4c | 1410 | bufptr = *buffer + bufsize * width; |
c906108c SS |
1411 | bufsize += nfetch; |
1412 | ||
ae6a3a4c | 1413 | /* Read as much as we can. */ |
917317f4 | 1414 | nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode) |
ae6a3a4c | 1415 | / width; |
c906108c | 1416 | |
ae6a3a4c | 1417 | /* Scan this chunk for the null character that terminates the string |
c906108c SS |
1418 | to print. If found, we don't need to fetch any more. Note |
1419 | that bufptr is explicitly left pointing at the next character | |
ae6a3a4c TJB |
1420 | after the null character, or at the next character after the end |
1421 | of the buffer. */ | |
c906108c SS |
1422 | |
1423 | limit = bufptr + nfetch * width; | |
1424 | while (bufptr < limit) | |
1425 | { | |
1426 | unsigned long c; | |
1427 | ||
e17a4113 | 1428 | c = extract_unsigned_integer (bufptr, width, byte_order); |
c906108c SS |
1429 | addr += width; |
1430 | bufptr += width; | |
1431 | if (c == 0) | |
1432 | { | |
1433 | /* We don't care about any error which happened after | |
ae6a3a4c | 1434 | the NUL terminator. */ |
c906108c SS |
1435 | errcode = 0; |
1436 | found_nul = 1; | |
1437 | break; | |
1438 | } | |
1439 | } | |
1440 | } | |
c5aa993b | 1441 | while (errcode == 0 /* no error */ |
ae6a3a4c TJB |
1442 | && bufptr - *buffer < fetchlimit * width /* no overrun */ |
1443 | && !found_nul); /* haven't found NUL yet */ | |
c906108c SS |
1444 | } |
1445 | else | |
ae6a3a4c TJB |
1446 | { /* Length of string is really 0! */ |
1447 | /* We always allocate *buffer. */ | |
1448 | *buffer = bufptr = xmalloc (1); | |
c906108c SS |
1449 | errcode = 0; |
1450 | } | |
1451 | ||
1452 | /* bufptr and addr now point immediately beyond the last byte which we | |
1453 | consider part of the string (including a '\0' which ends the string). */ | |
ae6a3a4c TJB |
1454 | *bytes_read = bufptr - *buffer; |
1455 | ||
1456 | QUIT; | |
1457 | ||
1458 | discard_cleanups (old_chain); | |
1459 | ||
1460 | return errcode; | |
1461 | } | |
1462 | ||
1463 | /* Print a string from the inferior, starting at ADDR and printing up to LEN | |
1464 | characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing | |
1465 | stops at the first null byte, otherwise printing proceeds (including null | |
1466 | bytes) until either print_max or LEN characters have been printed, | |
09ca9e2e TT |
1467 | whichever is smaller. ENCODING is the name of the string's |
1468 | encoding. It can be NULL, in which case the target encoding is | |
1469 | assumed. */ | |
ae6a3a4c TJB |
1470 | |
1471 | int | |
09ca9e2e TT |
1472 | val_print_string (struct type *elttype, const char *encoding, |
1473 | CORE_ADDR addr, int len, | |
6c7a06a3 | 1474 | struct ui_file *stream, |
ae6a3a4c TJB |
1475 | const struct value_print_options *options) |
1476 | { | |
1477 | int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ | |
1478 | int errcode; /* Errno returned from bad reads. */ | |
581e13c1 | 1479 | int found_nul; /* Non-zero if we found the nul char. */ |
ae6a3a4c TJB |
1480 | unsigned int fetchlimit; /* Maximum number of chars to print. */ |
1481 | int bytes_read; | |
1482 | gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */ | |
1483 | struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ | |
5af949e3 | 1484 | struct gdbarch *gdbarch = get_type_arch (elttype); |
e17a4113 | 1485 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
6c7a06a3 | 1486 | int width = TYPE_LENGTH (elttype); |
ae6a3a4c TJB |
1487 | |
1488 | /* First we need to figure out the limit on the number of characters we are | |
1489 | going to attempt to fetch and print. This is actually pretty simple. If | |
1490 | LEN >= zero, then the limit is the minimum of LEN and print_max. If | |
1491 | LEN is -1, then the limit is print_max. This is true regardless of | |
1492 | whether print_max is zero, UINT_MAX (unlimited), or something in between, | |
1493 | because finding the null byte (or available memory) is what actually | |
1494 | limits the fetch. */ | |
1495 | ||
3e43a32a MS |
1496 | fetchlimit = (len == -1 ? options->print_max : min (len, |
1497 | options->print_max)); | |
ae6a3a4c | 1498 | |
e17a4113 UW |
1499 | errcode = read_string (addr, len, width, fetchlimit, byte_order, |
1500 | &buffer, &bytes_read); | |
ae6a3a4c TJB |
1501 | old_chain = make_cleanup (xfree, buffer); |
1502 | ||
1503 | addr += bytes_read; | |
c906108c | 1504 | |
3e43a32a MS |
1505 | /* We now have either successfully filled the buffer to fetchlimit, |
1506 | or terminated early due to an error or finding a null char when | |
1507 | LEN is -1. */ | |
ae6a3a4c TJB |
1508 | |
1509 | /* Determine found_nul by looking at the last character read. */ | |
e17a4113 UW |
1510 | found_nul = extract_unsigned_integer (buffer + bytes_read - width, width, |
1511 | byte_order) == 0; | |
c906108c SS |
1512 | if (len == -1 && !found_nul) |
1513 | { | |
777ea8f1 | 1514 | gdb_byte *peekbuf; |
c906108c | 1515 | |
ae6a3a4c | 1516 | /* We didn't find a NUL terminator we were looking for. Attempt |
c5aa993b JM |
1517 | to peek at the next character. If not successful, or it is not |
1518 | a null byte, then force ellipsis to be printed. */ | |
c906108c | 1519 | |
777ea8f1 | 1520 | peekbuf = (gdb_byte *) alloca (width); |
c906108c SS |
1521 | |
1522 | if (target_read_memory (addr, peekbuf, width) == 0 | |
e17a4113 | 1523 | && extract_unsigned_integer (peekbuf, width, byte_order) != 0) |
c906108c SS |
1524 | force_ellipsis = 1; |
1525 | } | |
ae6a3a4c | 1526 | else if ((len >= 0 && errcode != 0) || (len > bytes_read / width)) |
c906108c SS |
1527 | { |
1528 | /* Getting an error when we have a requested length, or fetching less | |
c5aa993b | 1529 | than the number of characters actually requested, always make us |
ae6a3a4c | 1530 | print ellipsis. */ |
c906108c SS |
1531 | force_ellipsis = 1; |
1532 | } | |
1533 | ||
c906108c SS |
1534 | /* If we get an error before fetching anything, don't print a string. |
1535 | But if we fetch something and then get an error, print the string | |
1536 | and then the error message. */ | |
ae6a3a4c | 1537 | if (errcode == 0 || bytes_read > 0) |
c906108c | 1538 | { |
79a45b7d | 1539 | if (options->addressprint) |
c906108c SS |
1540 | { |
1541 | fputs_filtered (" ", stream); | |
1542 | } | |
be759fcf | 1543 | LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width, |
3a772aa4 | 1544 | encoding, force_ellipsis, options); |
c906108c SS |
1545 | } |
1546 | ||
1547 | if (errcode != 0) | |
1548 | { | |
1549 | if (errcode == EIO) | |
1550 | { | |
1551 | fprintf_filtered (stream, " <Address "); | |
5af949e3 | 1552 | fputs_filtered (paddress (gdbarch, addr), stream); |
c906108c SS |
1553 | fprintf_filtered (stream, " out of bounds>"); |
1554 | } | |
1555 | else | |
1556 | { | |
1557 | fprintf_filtered (stream, " <Error reading address "); | |
5af949e3 | 1558 | fputs_filtered (paddress (gdbarch, addr), stream); |
c906108c SS |
1559 | fprintf_filtered (stream, ": %s>", safe_strerror (errcode)); |
1560 | } | |
1561 | } | |
ae6a3a4c | 1562 | |
c906108c SS |
1563 | gdb_flush (stream); |
1564 | do_cleanups (old_chain); | |
ae6a3a4c TJB |
1565 | |
1566 | return (bytes_read / width); | |
c906108c | 1567 | } |
c906108c | 1568 | \f |
c5aa993b | 1569 | |
09e6485f PA |
1570 | /* The 'set input-radix' command writes to this auxiliary variable. |
1571 | If the requested radix is valid, INPUT_RADIX is updated; otherwise, | |
1572 | it is left unchanged. */ | |
1573 | ||
1574 | static unsigned input_radix_1 = 10; | |
1575 | ||
c906108c SS |
1576 | /* Validate an input or output radix setting, and make sure the user |
1577 | knows what they really did here. Radix setting is confusing, e.g. | |
1578 | setting the input radix to "10" never changes it! */ | |
1579 | ||
c906108c | 1580 | static void |
fba45db2 | 1581 | set_input_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1582 | { |
09e6485f | 1583 | set_input_radix_1 (from_tty, input_radix_1); |
c906108c SS |
1584 | } |
1585 | ||
c906108c | 1586 | static void |
fba45db2 | 1587 | set_input_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
1588 | { |
1589 | /* We don't currently disallow any input radix except 0 or 1, which don't | |
1590 | make any mathematical sense. In theory, we can deal with any input | |
1591 | radix greater than 1, even if we don't have unique digits for every | |
1592 | value from 0 to radix-1, but in practice we lose on large radix values. | |
1593 | We should either fix the lossage or restrict the radix range more. | |
581e13c1 | 1594 | (FIXME). */ |
c906108c SS |
1595 | |
1596 | if (radix < 2) | |
1597 | { | |
09e6485f | 1598 | input_radix_1 = input_radix; |
8a3fe4f8 | 1599 | error (_("Nonsense input radix ``decimal %u''; input radix unchanged."), |
c906108c SS |
1600 | radix); |
1601 | } | |
09e6485f | 1602 | input_radix_1 = input_radix = radix; |
c906108c SS |
1603 | if (from_tty) |
1604 | { | |
3e43a32a MS |
1605 | printf_filtered (_("Input radix now set to " |
1606 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
1607 | radix, radix, radix); |
1608 | } | |
1609 | } | |
1610 | ||
09e6485f PA |
1611 | /* The 'set output-radix' command writes to this auxiliary variable. |
1612 | If the requested radix is valid, OUTPUT_RADIX is updated, | |
1613 | otherwise, it is left unchanged. */ | |
1614 | ||
1615 | static unsigned output_radix_1 = 10; | |
1616 | ||
c906108c | 1617 | static void |
fba45db2 | 1618 | set_output_radix (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1619 | { |
09e6485f | 1620 | set_output_radix_1 (from_tty, output_radix_1); |
c906108c SS |
1621 | } |
1622 | ||
1623 | static void | |
fba45db2 | 1624 | set_output_radix_1 (int from_tty, unsigned radix) |
c906108c SS |
1625 | { |
1626 | /* Validate the radix and disallow ones that we aren't prepared to | |
581e13c1 | 1627 | handle correctly, leaving the radix unchanged. */ |
c906108c SS |
1628 | switch (radix) |
1629 | { | |
1630 | case 16: | |
79a45b7d | 1631 | user_print_options.output_format = 'x'; /* hex */ |
c906108c SS |
1632 | break; |
1633 | case 10: | |
79a45b7d | 1634 | user_print_options.output_format = 0; /* decimal */ |
c906108c SS |
1635 | break; |
1636 | case 8: | |
79a45b7d | 1637 | user_print_options.output_format = 'o'; /* octal */ |
c906108c SS |
1638 | break; |
1639 | default: | |
09e6485f | 1640 | output_radix_1 = output_radix; |
3e43a32a MS |
1641 | error (_("Unsupported output radix ``decimal %u''; " |
1642 | "output radix unchanged."), | |
c906108c SS |
1643 | radix); |
1644 | } | |
09e6485f | 1645 | output_radix_1 = output_radix = radix; |
c906108c SS |
1646 | if (from_tty) |
1647 | { | |
3e43a32a MS |
1648 | printf_filtered (_("Output radix now set to " |
1649 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
1650 | radix, radix, radix); |
1651 | } | |
1652 | } | |
1653 | ||
1654 | /* Set both the input and output radix at once. Try to set the output radix | |
1655 | first, since it has the most restrictive range. An radix that is valid as | |
1656 | an output radix is also valid as an input radix. | |
1657 | ||
1658 | It may be useful to have an unusual input radix. If the user wishes to | |
1659 | set an input radix that is not valid as an output radix, he needs to use | |
581e13c1 | 1660 | the 'set input-radix' command. */ |
c906108c SS |
1661 | |
1662 | static void | |
fba45db2 | 1663 | set_radix (char *arg, int from_tty) |
c906108c SS |
1664 | { |
1665 | unsigned radix; | |
1666 | ||
bb518678 | 1667 | radix = (arg == NULL) ? 10 : parse_and_eval_long (arg); |
c906108c SS |
1668 | set_output_radix_1 (0, radix); |
1669 | set_input_radix_1 (0, radix); | |
1670 | if (from_tty) | |
1671 | { | |
3e43a32a MS |
1672 | printf_filtered (_("Input and output radices now set to " |
1673 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
1674 | radix, radix, radix); |
1675 | } | |
1676 | } | |
1677 | ||
581e13c1 | 1678 | /* Show both the input and output radices. */ |
c906108c | 1679 | |
c906108c | 1680 | static void |
fba45db2 | 1681 | show_radix (char *arg, int from_tty) |
c906108c SS |
1682 | { |
1683 | if (from_tty) | |
1684 | { | |
1685 | if (input_radix == output_radix) | |
1686 | { | |
3e43a32a MS |
1687 | printf_filtered (_("Input and output radices set to " |
1688 | "decimal %u, hex %x, octal %o.\n"), | |
c906108c SS |
1689 | input_radix, input_radix, input_radix); |
1690 | } | |
1691 | else | |
1692 | { | |
3e43a32a MS |
1693 | printf_filtered (_("Input radix set to decimal " |
1694 | "%u, hex %x, octal %o.\n"), | |
c906108c | 1695 | input_radix, input_radix, input_radix); |
3e43a32a MS |
1696 | printf_filtered (_("Output radix set to decimal " |
1697 | "%u, hex %x, octal %o.\n"), | |
c906108c SS |
1698 | output_radix, output_radix, output_radix); |
1699 | } | |
1700 | } | |
1701 | } | |
c906108c | 1702 | \f |
c5aa993b | 1703 | |
c906108c | 1704 | static void |
fba45db2 | 1705 | set_print (char *arg, int from_tty) |
c906108c SS |
1706 | { |
1707 | printf_unfiltered ( | |
c5aa993b | 1708 | "\"set print\" must be followed by the name of a print subcommand.\n"); |
c906108c SS |
1709 | help_list (setprintlist, "set print ", -1, gdb_stdout); |
1710 | } | |
1711 | ||
c906108c | 1712 | static void |
fba45db2 | 1713 | show_print (char *args, int from_tty) |
c906108c SS |
1714 | { |
1715 | cmd_show_list (showprintlist, from_tty, ""); | |
1716 | } | |
1717 | \f | |
1718 | void | |
fba45db2 | 1719 | _initialize_valprint (void) |
c906108c | 1720 | { |
c906108c | 1721 | add_prefix_cmd ("print", no_class, set_print, |
1bedd215 | 1722 | _("Generic command for setting how things print."), |
c906108c | 1723 | &setprintlist, "set print ", 0, &setlist); |
c5aa993b | 1724 | add_alias_cmd ("p", "print", no_class, 1, &setlist); |
581e13c1 | 1725 | /* Prefer set print to set prompt. */ |
c906108c SS |
1726 | add_alias_cmd ("pr", "print", no_class, 1, &setlist); |
1727 | ||
1728 | add_prefix_cmd ("print", no_class, show_print, | |
1bedd215 | 1729 | _("Generic command for showing print settings."), |
c906108c | 1730 | &showprintlist, "show print ", 0, &showlist); |
c5aa993b JM |
1731 | add_alias_cmd ("p", "print", no_class, 1, &showlist); |
1732 | add_alias_cmd ("pr", "print", no_class, 1, &showlist); | |
c906108c | 1733 | |
79a45b7d TT |
1734 | add_setshow_uinteger_cmd ("elements", no_class, |
1735 | &user_print_options.print_max, _("\ | |
35096d9d AC |
1736 | Set limit on string chars or array elements to print."), _("\ |
1737 | Show limit on string chars or array elements to print."), _("\ | |
1738 | \"set print elements 0\" causes there to be no limit."), | |
1739 | NULL, | |
920d2a44 | 1740 | show_print_max, |
35096d9d | 1741 | &setprintlist, &showprintlist); |
c906108c | 1742 | |
79a45b7d TT |
1743 | add_setshow_boolean_cmd ("null-stop", no_class, |
1744 | &user_print_options.stop_print_at_null, _("\ | |
5bf193a2 AC |
1745 | Set printing of char arrays to stop at first null char."), _("\ |
1746 | Show printing of char arrays to stop at first null char."), NULL, | |
1747 | NULL, | |
920d2a44 | 1748 | show_stop_print_at_null, |
5bf193a2 | 1749 | &setprintlist, &showprintlist); |
c906108c | 1750 | |
35096d9d | 1751 | add_setshow_uinteger_cmd ("repeats", no_class, |
79a45b7d | 1752 | &user_print_options.repeat_count_threshold, _("\ |
35096d9d AC |
1753 | Set threshold for repeated print elements."), _("\ |
1754 | Show threshold for repeated print elements."), _("\ | |
1755 | \"set print repeats 0\" causes all elements to be individually printed."), | |
1756 | NULL, | |
920d2a44 | 1757 | show_repeat_count_threshold, |
35096d9d | 1758 | &setprintlist, &showprintlist); |
c906108c | 1759 | |
79a45b7d TT |
1760 | add_setshow_boolean_cmd ("pretty", class_support, |
1761 | &user_print_options.prettyprint_structs, _("\ | |
5bf193a2 AC |
1762 | Set prettyprinting of structures."), _("\ |
1763 | Show prettyprinting of structures."), NULL, | |
1764 | NULL, | |
920d2a44 | 1765 | show_prettyprint_structs, |
5bf193a2 AC |
1766 | &setprintlist, &showprintlist); |
1767 | ||
79a45b7d TT |
1768 | add_setshow_boolean_cmd ("union", class_support, |
1769 | &user_print_options.unionprint, _("\ | |
5bf193a2 AC |
1770 | Set printing of unions interior to structures."), _("\ |
1771 | Show printing of unions interior to structures."), NULL, | |
1772 | NULL, | |
920d2a44 | 1773 | show_unionprint, |
5bf193a2 AC |
1774 | &setprintlist, &showprintlist); |
1775 | ||
79a45b7d TT |
1776 | add_setshow_boolean_cmd ("array", class_support, |
1777 | &user_print_options.prettyprint_arrays, _("\ | |
5bf193a2 AC |
1778 | Set prettyprinting of arrays."), _("\ |
1779 | Show prettyprinting of arrays."), NULL, | |
1780 | NULL, | |
920d2a44 | 1781 | show_prettyprint_arrays, |
5bf193a2 AC |
1782 | &setprintlist, &showprintlist); |
1783 | ||
79a45b7d TT |
1784 | add_setshow_boolean_cmd ("address", class_support, |
1785 | &user_print_options.addressprint, _("\ | |
5bf193a2 AC |
1786 | Set printing of addresses."), _("\ |
1787 | Show printing of addresses."), NULL, | |
1788 | NULL, | |
920d2a44 | 1789 | show_addressprint, |
5bf193a2 | 1790 | &setprintlist, &showprintlist); |
c906108c | 1791 | |
1e8fb976 PA |
1792 | add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1, |
1793 | _("\ | |
35096d9d AC |
1794 | Set default input radix for entering numbers."), _("\ |
1795 | Show default input radix for entering numbers."), NULL, | |
1e8fb976 PA |
1796 | set_input_radix, |
1797 | show_input_radix, | |
1798 | &setlist, &showlist); | |
35096d9d | 1799 | |
1e8fb976 PA |
1800 | add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1, |
1801 | _("\ | |
35096d9d AC |
1802 | Set default output radix for printing of values."), _("\ |
1803 | Show default output radix for printing of values."), NULL, | |
1e8fb976 PA |
1804 | set_output_radix, |
1805 | show_output_radix, | |
1806 | &setlist, &showlist); | |
c906108c | 1807 | |
cb1a6d5f AC |
1808 | /* The "set radix" and "show radix" commands are special in that |
1809 | they are like normal set and show commands but allow two normally | |
1810 | independent variables to be either set or shown with a single | |
b66df561 | 1811 | command. So the usual deprecated_add_set_cmd() and [deleted] |
581e13c1 | 1812 | add_show_from_set() commands aren't really appropriate. */ |
b66df561 AC |
1813 | /* FIXME: i18n: With the new add_setshow_integer command, that is no |
1814 | longer true - show can display anything. */ | |
1a966eab AC |
1815 | add_cmd ("radix", class_support, set_radix, _("\ |
1816 | Set default input and output number radices.\n\ | |
c906108c | 1817 | Use 'set input-radix' or 'set output-radix' to independently set each.\n\ |
1a966eab | 1818 | Without an argument, sets both radices back to the default value of 10."), |
c906108c | 1819 | &setlist); |
1a966eab AC |
1820 | add_cmd ("radix", class_support, show_radix, _("\ |
1821 | Show the default input and output number radices.\n\ | |
1822 | Use 'show input-radix' or 'show output-radix' to independently show each."), | |
c906108c SS |
1823 | &showlist); |
1824 | ||
e79af960 | 1825 | add_setshow_boolean_cmd ("array-indexes", class_support, |
79a45b7d | 1826 | &user_print_options.print_array_indexes, _("\ |
e79af960 JB |
1827 | Set printing of array indexes."), _("\ |
1828 | Show printing of array indexes"), NULL, NULL, show_print_array_indexes, | |
1829 | &setprintlist, &showprintlist); | |
c906108c | 1830 | } |