Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 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" | |
0e9f083f | 21 | #include <string.h> |
c906108c SS |
22 | #include "frame.h" |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "value.h" | |
26 | #include "language.h" | |
27 | #include "expression.h" | |
28 | #include "gdbcore.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "target.h" | |
31 | #include "breakpoint.h" | |
32 | #include "demangle.h" | |
50f182aa | 33 | #include "gdb-demangle.h" |
c906108c SS |
34 | #include "valprint.h" |
35 | #include "annotate.h" | |
c5aa993b JM |
36 | #include "symfile.h" /* for overlay functions */ |
37 | #include "objfiles.h" /* ditto */ | |
c94fdfd0 | 38 | #include "completer.h" /* for completion functions */ |
8b93c638 | 39 | #include "ui-out.h" |
261397f8 | 40 | #include "gdb_assert.h" |
fe898f56 | 41 | #include "block.h" |
92bf2b80 | 42 | #include "disasm.h" |
1a619819 | 43 | #include "dfp.h" |
a3247a22 PP |
44 | #include "exceptions.h" |
45 | #include "observer.h" | |
46 | #include "solist.h" | |
a3247a22 | 47 | #include "parser-defs.h" |
6c7a06a3 | 48 | #include "charset.h" |
704e9165 | 49 | #include "arch-utils.h" |
e9cafbcc | 50 | #include "cli/cli-utils.h" |
d3ce09f5 | 51 | #include "format.h" |
05cba821 | 52 | #include "source.h" |
c906108c | 53 | |
6a83354a | 54 | #ifdef TUI |
0df8b418 | 55 | #include "tui/tui.h" /* For tui_active et al. */ |
6a83354a AC |
56 | #endif |
57 | ||
c906108c | 58 | struct format_data |
c5aa993b JM |
59 | { |
60 | int count; | |
61 | char format; | |
62 | char size; | |
a6bac58e TT |
63 | |
64 | /* True if the value should be printed raw -- that is, bypassing | |
65 | python-based formatters. */ | |
66 | unsigned char raw; | |
c5aa993b | 67 | }; |
c906108c SS |
68 | |
69 | /* Last specified output format. */ | |
70 | ||
a6bac58e | 71 | static char last_format = 0; |
c906108c SS |
72 | |
73 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
74 | ||
75 | static char last_size = 'w'; | |
76 | ||
5d3729b5 | 77 | /* Default address to examine next, and associated architecture. */ |
c906108c | 78 | |
5d3729b5 | 79 | static struct gdbarch *next_gdbarch; |
c906108c SS |
80 | static CORE_ADDR next_address; |
81 | ||
a4642986 MR |
82 | /* Number of delay instructions following current disassembled insn. */ |
83 | ||
84 | static int branch_delay_insns; | |
85 | ||
c906108c SS |
86 | /* Last address examined. */ |
87 | ||
88 | static CORE_ADDR last_examine_address; | |
89 | ||
90 | /* Contents of last address examined. | |
91 | This is not valid past the end of the `x' command! */ | |
92 | ||
3d6d86c6 | 93 | static struct value *last_examine_value; |
c906108c SS |
94 | |
95 | /* Largest offset between a symbolic value and an address, that will be | |
96 | printed as `0x1234 <symbol+offset>'. */ | |
97 | ||
98 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
99 | static void |
100 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
101 | struct cmd_list_element *c, const char *value) | |
102 | { | |
3e43a32a MS |
103 | fprintf_filtered (file, |
104 | _("The largest offset that will be " | |
105 | "printed in <symbol+1234> form is %s.\n"), | |
920d2a44 AC |
106 | value); |
107 | } | |
c906108c SS |
108 | |
109 | /* Append the source filename and linenumber of the symbol when | |
110 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
111 | static int print_symbol_filename = 0; | |
920d2a44 AC |
112 | static void |
113 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
114 | struct cmd_list_element *c, const char *value) | |
115 | { | |
3e43a32a MS |
116 | fprintf_filtered (file, _("Printing of source filename and " |
117 | "line number with <symbol> is %s.\n"), | |
920d2a44 AC |
118 | value); |
119 | } | |
c906108c SS |
120 | |
121 | /* Number of auto-display expression currently being displayed. | |
9d8fa392 | 122 | So that we can disable it if we get a signal within it. |
c906108c SS |
123 | -1 when not doing one. */ |
124 | ||
5a18e302 | 125 | static int current_display_number; |
c906108c | 126 | |
c906108c | 127 | struct display |
c5aa993b JM |
128 | { |
129 | /* Chain link to next auto-display item. */ | |
130 | struct display *next; | |
6c95b8df | 131 | |
fa8a61dc TT |
132 | /* The expression as the user typed it. */ |
133 | char *exp_string; | |
6c95b8df | 134 | |
c5aa993b JM |
135 | /* Expression to be evaluated and displayed. */ |
136 | struct expression *exp; | |
6c95b8df | 137 | |
c5aa993b JM |
138 | /* Item number of this auto-display item. */ |
139 | int number; | |
6c95b8df | 140 | |
c5aa993b JM |
141 | /* Display format specified. */ |
142 | struct format_data format; | |
6c95b8df PA |
143 | |
144 | /* Program space associated with `block'. */ | |
145 | struct program_space *pspace; | |
146 | ||
0df8b418 | 147 | /* Innermost block required by this expression when evaluated. */ |
270140bd | 148 | const struct block *block; |
6c95b8df | 149 | |
0df8b418 | 150 | /* Status of this display (enabled or disabled). */ |
b5de0fa7 | 151 | int enabled_p; |
c5aa993b | 152 | }; |
c906108c SS |
153 | |
154 | /* Chain of expressions whose values should be displayed | |
155 | automatically each time the program stops. */ | |
156 | ||
157 | static struct display *display_chain; | |
158 | ||
159 | static int display_number; | |
160 | ||
c9174737 PA |
161 | /* Walk the following statement or block through all displays. |
162 | ALL_DISPLAYS_SAFE does so even if the statement deletes the current | |
163 | display. */ | |
3c3fe74c PA |
164 | |
165 | #define ALL_DISPLAYS(B) \ | |
166 | for (B = display_chain; B; B = B->next) | |
167 | ||
c9174737 PA |
168 | #define ALL_DISPLAYS_SAFE(B,TMP) \ |
169 | for (B = display_chain; \ | |
170 | B ? (TMP = B->next, 1): 0; \ | |
171 | B = TMP) | |
172 | ||
0df8b418 | 173 | /* Prototypes for exported functions. */ |
c906108c | 174 | |
a14ed312 | 175 | void _initialize_printcmd (void); |
c906108c | 176 | |
0df8b418 | 177 | /* Prototypes for local functions. */ |
c906108c | 178 | |
a14ed312 | 179 | static void do_one_display (struct display *); |
c906108c | 180 | \f |
c5aa993b | 181 | |
c906108c SS |
182 | /* Decode a format specification. *STRING_PTR should point to it. |
183 | OFORMAT and OSIZE are used as defaults for the format and size | |
184 | if none are given in the format specification. | |
185 | If OSIZE is zero, then the size field of the returned value | |
186 | should be set only if a size is explicitly specified by the | |
187 | user. | |
188 | The structure returned describes all the data | |
189 | found in the specification. In addition, *STRING_PTR is advanced | |
190 | past the specification and past all whitespace following it. */ | |
191 | ||
192 | static struct format_data | |
6f937416 | 193 | decode_format (const char **string_ptr, int oformat, int osize) |
c906108c SS |
194 | { |
195 | struct format_data val; | |
6f937416 | 196 | const char *p = *string_ptr; |
c906108c SS |
197 | |
198 | val.format = '?'; | |
199 | val.size = '?'; | |
200 | val.count = 1; | |
a6bac58e | 201 | val.raw = 0; |
c906108c SS |
202 | |
203 | if (*p >= '0' && *p <= '9') | |
204 | val.count = atoi (p); | |
c5aa993b JM |
205 | while (*p >= '0' && *p <= '9') |
206 | p++; | |
c906108c SS |
207 | |
208 | /* Now process size or format letters that follow. */ | |
209 | ||
210 | while (1) | |
211 | { | |
212 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
213 | val.size = *p++; | |
a6bac58e TT |
214 | else if (*p == 'r') |
215 | { | |
216 | val.raw = 1; | |
217 | p++; | |
218 | } | |
c906108c SS |
219 | else if (*p >= 'a' && *p <= 'z') |
220 | val.format = *p++; | |
221 | else | |
222 | break; | |
223 | } | |
224 | ||
c5aa993b JM |
225 | while (*p == ' ' || *p == '\t') |
226 | p++; | |
c906108c SS |
227 | *string_ptr = p; |
228 | ||
229 | /* Set defaults for format and size if not specified. */ | |
230 | if (val.format == '?') | |
231 | { | |
232 | if (val.size == '?') | |
233 | { | |
234 | /* Neither has been specified. */ | |
235 | val.format = oformat; | |
236 | val.size = osize; | |
237 | } | |
238 | else | |
239 | /* If a size is specified, any format makes a reasonable | |
240 | default except 'i'. */ | |
241 | val.format = oformat == 'i' ? 'x' : oformat; | |
242 | } | |
243 | else if (val.size == '?') | |
244 | switch (val.format) | |
245 | { | |
246 | case 'a': | |
5d3729b5 UW |
247 | /* Pick the appropriate size for an address. This is deferred |
248 | until do_examine when we know the actual architecture to use. | |
249 | A special size value of 'a' is used to indicate this case. */ | |
250 | val.size = osize ? 'a' : osize; | |
c906108c SS |
251 | break; |
252 | case 'f': | |
253 | /* Floating point has to be word or giantword. */ | |
254 | if (osize == 'w' || osize == 'g') | |
255 | val.size = osize; | |
256 | else | |
257 | /* Default it to giantword if the last used size is not | |
258 | appropriate. */ | |
259 | val.size = osize ? 'g' : osize; | |
260 | break; | |
261 | case 'c': | |
262 | /* Characters default to one byte. */ | |
263 | val.size = osize ? 'b' : osize; | |
264 | break; | |
9a22f0d0 | 265 | case 's': |
3e43a32a MS |
266 | /* Display strings with byte size chars unless explicitly |
267 | specified. */ | |
9a22f0d0 PM |
268 | val.size = '\0'; |
269 | break; | |
270 | ||
c906108c SS |
271 | default: |
272 | /* The default is the size most recently specified. */ | |
273 | val.size = osize; | |
274 | } | |
275 | ||
276 | return val; | |
277 | } | |
278 | \f | |
79a45b7d | 279 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 280 | Do not end with a newline. |
c906108c | 281 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
282 | This is used to pad hex numbers so they line up. SIZE is 0 |
283 | for print / output and set for examine. */ | |
c906108c SS |
284 | |
285 | static void | |
79a45b7d TT |
286 | print_formatted (struct value *val, int size, |
287 | const struct value_print_options *options, | |
fba45db2 | 288 | struct ui_file *stream) |
c906108c | 289 | { |
df407dfe | 290 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
291 | int len = TYPE_LENGTH (type); |
292 | ||
293 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 294 | next_address = value_address (val) + len; |
c906108c | 295 | |
ea37ba09 | 296 | if (size) |
c906108c | 297 | { |
79a45b7d | 298 | switch (options->format) |
ea37ba09 DJ |
299 | { |
300 | case 's': | |
6c7a06a3 TT |
301 | { |
302 | struct type *elttype = value_type (val); | |
ad3bbd48 | 303 | |
42ae5230 | 304 | next_address = (value_address (val) |
09ca9e2e | 305 | + val_print_string (elttype, NULL, |
42ae5230 | 306 | value_address (val), -1, |
9a22f0d0 | 307 | stream, options) * len); |
6c7a06a3 | 308 | } |
ea37ba09 | 309 | return; |
c906108c | 310 | |
ea37ba09 DJ |
311 | case 'i': |
312 | /* We often wrap here if there are long symbolic names. */ | |
313 | wrap_here (" "); | |
42ae5230 | 314 | next_address = (value_address (val) |
13274fc3 UW |
315 | + gdb_print_insn (get_type_arch (type), |
316 | value_address (val), stream, | |
ea37ba09 DJ |
317 | &branch_delay_insns)); |
318 | return; | |
319 | } | |
c906108c | 320 | } |
ea37ba09 | 321 | |
79a45b7d | 322 | if (options->format == 0 || options->format == 's' |
4e885b20 | 323 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
324 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
325 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
326 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
327 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
328 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 329 | value_print (val, stream, options); |
ea37ba09 | 330 | else |
b021a221 MS |
331 | /* User specified format, so don't look to the type to tell us |
332 | what to do. */ | |
ab2188aa PA |
333 | val_print_scalar_formatted (type, |
334 | value_contents_for_printing (val), | |
335 | value_embedded_offset (val), | |
336 | val, | |
337 | options, size, stream); | |
c906108c SS |
338 | } |
339 | ||
b806fb9a UW |
340 | /* Return builtin floating point type of same length as TYPE. |
341 | If no such type is found, return TYPE itself. */ | |
342 | static struct type * | |
50810684 | 343 | float_type_from_length (struct type *type) |
b806fb9a | 344 | { |
50810684 | 345 | struct gdbarch *gdbarch = get_type_arch (type); |
b806fb9a | 346 | const struct builtin_type *builtin = builtin_type (gdbarch); |
b806fb9a | 347 | |
744a8059 | 348 | if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_float)) |
b806fb9a | 349 | type = builtin->builtin_float; |
744a8059 | 350 | else if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_double)) |
b806fb9a | 351 | type = builtin->builtin_double; |
744a8059 | 352 | else if (TYPE_LENGTH (type) == TYPE_LENGTH (builtin->builtin_long_double)) |
b806fb9a UW |
353 | type = builtin->builtin_long_double; |
354 | ||
355 | return type; | |
356 | } | |
357 | ||
c906108c | 358 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
ab2188aa PA |
359 | according to OPTIONS and SIZE on STREAM. Formats s and i are not |
360 | supported at this level. */ | |
c906108c SS |
361 | |
362 | void | |
366b1cbf | 363 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
364 | const struct value_print_options *options, |
365 | int size, struct ui_file *stream) | |
c906108c | 366 | { |
50810684 | 367 | struct gdbarch *gdbarch = get_type_arch (type); |
81cb7cc9 | 368 | LONGEST val_long = 0; |
c906108c | 369 | unsigned int len = TYPE_LENGTH (type); |
69feb676 | 370 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 371 | |
ab2188aa PA |
372 | /* String printing should go through val_print_scalar_formatted. */ |
373 | gdb_assert (options->format != 's'); | |
ea37ba09 | 374 | |
6b9acc27 JJ |
375 | if (len > sizeof(LONGEST) && |
376 | (TYPE_CODE (type) == TYPE_CODE_INT | |
377 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
378 | { | |
79a45b7d | 379 | switch (options->format) |
6b9acc27 JJ |
380 | { |
381 | case 'o': | |
d44e8473 | 382 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
383 | return; |
384 | case 'u': | |
385 | case 'd': | |
d44e8473 | 386 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
387 | return; |
388 | case 't': | |
d44e8473 | 389 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
390 | return; |
391 | case 'x': | |
d44e8473 | 392 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
393 | return; |
394 | case 'c': | |
6c7a06a3 | 395 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
396 | return; |
397 | default: | |
398 | break; | |
399 | }; | |
400 | } | |
401 | ||
79a45b7d | 402 | if (options->format != 'f') |
c906108c SS |
403 | val_long = unpack_long (type, valaddr); |
404 | ||
ef166cf4 | 405 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 406 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 407 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 408 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
69feb676 | 409 | len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 410 | |
c906108c SS |
411 | /* If we are printing it as unsigned, truncate it in case it is actually |
412 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
413 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 414 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
415 | { |
416 | if (len < sizeof (LONGEST)) | |
417 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
418 | } | |
419 | ||
79a45b7d | 420 | switch (options->format) |
c906108c SS |
421 | { |
422 | case 'x': | |
423 | if (!size) | |
424 | { | |
675dcf4f | 425 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
426 | print_longest (stream, 'x', 1, val_long); |
427 | } | |
428 | else | |
429 | switch (size) | |
430 | { | |
431 | case 'b': | |
432 | case 'h': | |
433 | case 'w': | |
434 | case 'g': | |
435 | print_longest (stream, size, 1, val_long); | |
436 | break; | |
437 | default: | |
8a3fe4f8 | 438 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
439 | } |
440 | break; | |
441 | ||
442 | case 'd': | |
443 | print_longest (stream, 'd', 1, val_long); | |
444 | break; | |
445 | ||
446 | case 'u': | |
447 | print_longest (stream, 'u', 0, val_long); | |
448 | break; | |
449 | ||
450 | case 'o': | |
451 | if (val_long) | |
452 | print_longest (stream, 'o', 1, val_long); | |
453 | else | |
454 | fprintf_filtered (stream, "0"); | |
455 | break; | |
456 | ||
457 | case 'a': | |
593de6a6 | 458 | { |
593de6a6 | 459 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
ad3bbd48 | 460 | |
5af949e3 | 461 | print_address (gdbarch, addr, stream); |
593de6a6 | 462 | } |
c906108c SS |
463 | break; |
464 | ||
465 | case 'c': | |
79a45b7d TT |
466 | { |
467 | struct value_print_options opts = *options; | |
69feb676 | 468 | |
ad3bbd48 | 469 | opts.format = 0; |
79a45b7d | 470 | if (TYPE_UNSIGNED (type)) |
69feb676 UW |
471 | type = builtin_type (gdbarch)->builtin_true_unsigned_char; |
472 | else | |
473 | type = builtin_type (gdbarch)->builtin_true_char; | |
474 | ||
475 | value_print (value_from_longest (type, val_long), stream, &opts); | |
79a45b7d | 476 | } |
c906108c SS |
477 | break; |
478 | ||
479 | case 'f': | |
50810684 | 480 | type = float_type_from_length (type); |
c906108c SS |
481 | print_floating (valaddr, type, stream); |
482 | break; | |
483 | ||
484 | case 0: | |
675dcf4f MK |
485 | internal_error (__FILE__, __LINE__, |
486 | _("failed internal consistency check")); | |
c906108c SS |
487 | |
488 | case 't': | |
489 | /* Binary; 't' stands for "two". */ | |
490 | { | |
c5aa993b JM |
491 | char bits[8 * (sizeof val_long) + 1]; |
492 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
493 | char *cp = bits; |
494 | int width; | |
495 | ||
c5aa993b JM |
496 | if (!size) |
497 | width = 8 * (sizeof val_long); | |
498 | else | |
499 | switch (size) | |
c906108c SS |
500 | { |
501 | case 'b': | |
502 | width = 8; | |
503 | break; | |
504 | case 'h': | |
505 | width = 16; | |
506 | break; | |
507 | case 'w': | |
508 | width = 32; | |
509 | break; | |
510 | case 'g': | |
511 | width = 64; | |
512 | break; | |
513 | default: | |
8a3fe4f8 | 514 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
515 | } |
516 | ||
c5aa993b JM |
517 | bits[width] = '\0'; |
518 | while (width-- > 0) | |
519 | { | |
520 | bits[width] = (val_long & 1) ? '1' : '0'; | |
521 | val_long >>= 1; | |
522 | } | |
c906108c SS |
523 | if (!size) |
524 | { | |
525 | while (*cp && *cp == '0') | |
526 | cp++; | |
527 | if (*cp == '\0') | |
528 | cp--; | |
529 | } | |
daac021a | 530 | strncpy (buf, cp, sizeof (bits)); |
306d9ac5 | 531 | fputs_filtered (buf, stream); |
c906108c SS |
532 | } |
533 | break; | |
534 | ||
6fbe845e AB |
535 | case 'z': |
536 | print_hex_chars (stream, valaddr, len, byte_order); | |
537 | break; | |
538 | ||
c906108c | 539 | default: |
79a45b7d | 540 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
541 | } |
542 | } | |
543 | ||
544 | /* Specify default address for `x' command. | |
675dcf4f | 545 | The `info lines' command uses this. */ |
c906108c SS |
546 | |
547 | void | |
8b9b9e1a | 548 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 549 | { |
8b9b9e1a UW |
550 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
551 | ||
5d3729b5 | 552 | next_gdbarch = gdbarch; |
c906108c SS |
553 | next_address = addr; |
554 | ||
555 | /* Make address available to the user as $_. */ | |
556 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 557 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
558 | } |
559 | ||
560 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
561 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
562 | Optionally also print source file and line number, if available. | |
563 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
564 | or to interpret it as a possible C++ name and convert it back to source | |
565 | form. However note that DO_DEMANGLE can be overridden by the specific | |
9cb709b6 TT |
566 | settings of the demangle and asm_demangle variables. Returns |
567 | non-zero if anything was printed; zero otherwise. */ | |
c906108c | 568 | |
9cb709b6 | 569 | int |
22e722e1 DJ |
570 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
571 | struct ui_file *stream, | |
675dcf4f | 572 | int do_demangle, char *leadin) |
dfcd3bfb JM |
573 | { |
574 | char *name = NULL; | |
575 | char *filename = NULL; | |
576 | int unmapped = 0; | |
577 | int offset = 0; | |
578 | int line = 0; | |
579 | ||
675dcf4f | 580 | /* Throw away both name and filename. */ |
2f9429ae AC |
581 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
582 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 583 | |
22e722e1 | 584 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 585 | &filename, &line, &unmapped)) |
2f9429ae AC |
586 | { |
587 | do_cleanups (cleanup_chain); | |
9cb709b6 | 588 | return 0; |
2f9429ae | 589 | } |
dfcd3bfb JM |
590 | |
591 | fputs_filtered (leadin, stream); | |
592 | if (unmapped) | |
593 | fputs_filtered ("<*", stream); | |
594 | else | |
595 | fputs_filtered ("<", stream); | |
596 | fputs_filtered (name, stream); | |
597 | if (offset != 0) | |
598 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
599 | ||
600 | /* Append source filename and line number if desired. Give specific | |
601 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
602 | if (print_symbol_filename && filename != NULL) | |
603 | { | |
604 | if (line != -1) | |
605 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
606 | else | |
607 | fprintf_filtered (stream, " in %s", filename); | |
608 | } | |
609 | if (unmapped) | |
610 | fputs_filtered ("*>", stream); | |
611 | else | |
612 | fputs_filtered (">", stream); | |
613 | ||
614 | do_cleanups (cleanup_chain); | |
9cb709b6 | 615 | return 1; |
dfcd3bfb JM |
616 | } |
617 | ||
618 | /* Given an address ADDR return all the elements needed to print the | |
0df8b418 | 619 | address in a symbolic form. NAME can be mangled or not depending |
dfcd3bfb | 620 | on DO_DEMANGLE (and also on the asm_demangle global variable, |
0df8b418 MS |
621 | manipulated via ''set print asm-demangle''). Return 0 in case of |
622 | success, when all the info in the OUT paramters is valid. Return 1 | |
623 | otherwise. */ | |
dfcd3bfb | 624 | int |
22e722e1 DJ |
625 | build_address_symbolic (struct gdbarch *gdbarch, |
626 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
627 | int do_demangle, /* IN */ |
628 | char **name, /* OUT */ | |
629 | int *offset, /* OUT */ | |
630 | char **filename, /* OUT */ | |
631 | int *line, /* OUT */ | |
632 | int *unmapped) /* OUT */ | |
c906108c | 633 | { |
77e371c0 | 634 | struct bound_minimal_symbol msymbol; |
c906108c | 635 | struct symbol *symbol; |
c906108c | 636 | CORE_ADDR name_location = 0; |
714835d5 | 637 | struct obj_section *section = NULL; |
0d5cff50 | 638 | const char *name_temp = ""; |
dfcd3bfb | 639 | |
89c83b10 | 640 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 641 | *unmapped = 0; |
c906108c | 642 | |
dfcd3bfb | 643 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 644 | mapped. */ |
c906108c SS |
645 | if (overlay_debugging) |
646 | { | |
647 | section = find_pc_overlay (addr); | |
648 | if (pc_in_unmapped_range (addr, section)) | |
649 | { | |
dfcd3bfb | 650 | *unmapped = 1; |
c906108c SS |
651 | addr = overlay_mapped_address (addr, section); |
652 | } | |
653 | } | |
654 | ||
c906108c SS |
655 | /* First try to find the address in the symbol table, then |
656 | in the minsyms. Take the closest one. */ | |
657 | ||
658 | /* This is defective in the sense that it only finds text symbols. So | |
659 | really this is kind of pointless--we should make sure that the | |
660 | minimal symbols have everything we need (by changing that we could | |
661 | save some memory, but for many debug format--ELF/DWARF or | |
662 | anything/stabs--it would be inconvenient to eliminate those minimal | |
663 | symbols anyway). */ | |
77e371c0 | 664 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); |
c906108c SS |
665 | symbol = find_pc_sect_function (addr, section); |
666 | ||
667 | if (symbol) | |
668 | { | |
22e722e1 DJ |
669 | /* If this is a function (i.e. a code address), strip out any |
670 | non-address bits. For instance, display a pointer to the | |
671 | first instruction of a Thumb function as <function>; the | |
672 | second instruction will be <function+2>, even though the | |
673 | pointer is <function+3>. This matches the ISA behavior. */ | |
674 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
675 | ||
c906108c | 676 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 677 | if (do_demangle || asm_demangle) |
de5ad195 | 678 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 679 | else |
3567439c | 680 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
681 | } |
682 | ||
77e371c0 TT |
683 | if (msymbol.minsym != NULL |
684 | && MSYMBOL_HAS_SIZE (msymbol.minsym) | |
685 | && MSYMBOL_SIZE (msymbol.minsym) == 0 | |
686 | && MSYMBOL_TYPE (msymbol.minsym) != mst_text | |
687 | && MSYMBOL_TYPE (msymbol.minsym) != mst_text_gnu_ifunc | |
688 | && MSYMBOL_TYPE (msymbol.minsym) != mst_file_text) | |
689 | msymbol.minsym = NULL; | |
9cb709b6 | 690 | |
77e371c0 | 691 | if (msymbol.minsym != NULL) |
c906108c | 692 | { |
77e371c0 | 693 | if (BMSYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) |
c906108c | 694 | { |
fe8400b4 WN |
695 | /* If this is a function (i.e. a code address), strip out any |
696 | non-address bits. For instance, display a pointer to the | |
697 | first instruction of a Thumb function as <function>; the | |
698 | second instruction will be <function+2>, even though the | |
699 | pointer is <function+3>. This matches the ISA behavior. */ | |
77e371c0 TT |
700 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_text |
701 | || MSYMBOL_TYPE (msymbol.minsym) == mst_text_gnu_ifunc | |
702 | || MSYMBOL_TYPE (msymbol.minsym) == mst_file_text | |
703 | || MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
fe8400b4 WN |
704 | addr = gdbarch_addr_bits_remove (gdbarch, addr); |
705 | ||
c906108c SS |
706 | /* The msymbol is closer to the address than the symbol; |
707 | use the msymbol instead. */ | |
708 | symbol = 0; | |
77e371c0 | 709 | name_location = BMSYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 710 | if (do_demangle || asm_demangle) |
77e371c0 | 711 | name_temp = MSYMBOL_PRINT_NAME (msymbol.minsym); |
c906108c | 712 | else |
77e371c0 | 713 | name_temp = MSYMBOL_LINKAGE_NAME (msymbol.minsym); |
c906108c SS |
714 | } |
715 | } | |
77e371c0 | 716 | if (symbol == NULL && msymbol.minsym == NULL) |
dfcd3bfb | 717 | return 1; |
c906108c | 718 | |
c906108c SS |
719 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
720 | ||
721 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
722 | CORE_ADDR. But when we detect unsigned wraparound in the | |
723 | CORE_ADDR math, we ignore this test and print the offset, | |
724 | because addr+max_symbolic_offset has wrapped through the end | |
725 | of the address space back to the beginning, giving bogus comparison. */ | |
726 | if (addr > name_location + max_symbolic_offset | |
727 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 728 | return 1; |
c906108c | 729 | |
dfcd3bfb JM |
730 | *offset = addr - name_location; |
731 | ||
732 | *name = xstrdup (name_temp); | |
c906108c | 733 | |
c906108c SS |
734 | if (print_symbol_filename) |
735 | { | |
736 | struct symtab_and_line sal; | |
737 | ||
738 | sal = find_pc_sect_line (addr, section, 0); | |
739 | ||
740 | if (sal.symtab) | |
dfcd3bfb | 741 | { |
05cba821 | 742 | *filename = xstrdup (symtab_to_filename_for_display (sal.symtab)); |
dfcd3bfb JM |
743 | *line = sal.line; |
744 | } | |
c906108c | 745 | } |
dfcd3bfb | 746 | return 0; |
c906108c SS |
747 | } |
748 | ||
c906108c SS |
749 | |
750 | /* Print address ADDR symbolically on STREAM. | |
751 | First print it as a number. Then perhaps print | |
752 | <SYMBOL + OFFSET> after the number. */ | |
753 | ||
754 | void | |
5af949e3 UW |
755 | print_address (struct gdbarch *gdbarch, |
756 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 757 | { |
5af949e3 | 758 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 759 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
760 | } |
761 | ||
2b28d209 PP |
762 | /* Return a prefix for instruction address: |
763 | "=> " for current instruction, else " ". */ | |
764 | ||
765 | const char * | |
766 | pc_prefix (CORE_ADDR addr) | |
767 | { | |
768 | if (has_stack_frames ()) | |
769 | { | |
770 | struct frame_info *frame; | |
771 | CORE_ADDR pc; | |
772 | ||
773 | frame = get_selected_frame (NULL); | |
ce406537 | 774 | if (get_frame_pc_if_available (frame, &pc) && pc == addr) |
2b28d209 PP |
775 | return "=> "; |
776 | } | |
777 | return " "; | |
778 | } | |
779 | ||
c906108c SS |
780 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
781 | controls whether to print the symbolic name "raw" or demangled. | |
9cb709b6 | 782 | Return non-zero if anything was printed; zero otherwise. */ |
c906108c | 783 | |
9cb709b6 | 784 | int |
edf0c1b7 TT |
785 | print_address_demangle (const struct value_print_options *opts, |
786 | struct gdbarch *gdbarch, CORE_ADDR addr, | |
5af949e3 | 787 | struct ui_file *stream, int do_demangle) |
c906108c | 788 | { |
1d51a733 | 789 | if (opts->addressprint) |
c906108c | 790 | { |
5af949e3 | 791 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 792 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
793 | } |
794 | else | |
795 | { | |
9cb709b6 | 796 | return print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c | 797 | } |
9cb709b6 | 798 | return 1; |
c906108c SS |
799 | } |
800 | \f | |
801 | ||
c906108c SS |
802 | /* Examine data at address ADDR in format FMT. |
803 | Fetch it from memory and print on gdb_stdout. */ | |
804 | ||
805 | static void | |
5d3729b5 | 806 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 807 | { |
52f0bd74 AC |
808 | char format = 0; |
809 | char size; | |
810 | int count = 1; | |
c906108c | 811 | struct type *val_type = NULL; |
52f0bd74 AC |
812 | int i; |
813 | int maxelts; | |
79a45b7d | 814 | struct value_print_options opts; |
c906108c SS |
815 | |
816 | format = fmt.format; | |
817 | size = fmt.size; | |
818 | count = fmt.count; | |
5d3729b5 | 819 | next_gdbarch = gdbarch; |
c906108c | 820 | next_address = addr; |
c906108c | 821 | |
9a22f0d0 PM |
822 | /* Instruction format implies fetch single bytes |
823 | regardless of the specified size. | |
824 | The case of strings is handled in decode_format, only explicit | |
825 | size operator are not changed to 'b'. */ | |
826 | if (format == 'i') | |
c906108c SS |
827 | size = 'b'; |
828 | ||
5d3729b5 UW |
829 | if (size == 'a') |
830 | { | |
831 | /* Pick the appropriate size for an address. */ | |
832 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
833 | size = 'g'; | |
834 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
835 | size = 'w'; | |
836 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
837 | size = 'h'; | |
838 | else | |
839 | /* Bad value for gdbarch_ptr_bit. */ | |
840 | internal_error (__FILE__, __LINE__, | |
841 | _("failed internal consistency check")); | |
842 | } | |
843 | ||
844 | if (size == 'b') | |
df4df182 | 845 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 846 | else if (size == 'h') |
df4df182 | 847 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 848 | else if (size == 'w') |
df4df182 | 849 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 850 | else if (size == 'g') |
df4df182 | 851 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c | 852 | |
9a22f0d0 PM |
853 | if (format == 's') |
854 | { | |
855 | struct type *char_type = NULL; | |
ad3bbd48 | 856 | |
9a22f0d0 PM |
857 | /* Search for "char16_t" or "char32_t" types or fall back to 8-bit char |
858 | if type is not found. */ | |
859 | if (size == 'h') | |
860 | char_type = builtin_type (next_gdbarch)->builtin_char16; | |
861 | else if (size == 'w') | |
862 | char_type = builtin_type (next_gdbarch)->builtin_char32; | |
863 | if (char_type) | |
864 | val_type = char_type; | |
865 | else | |
866 | { | |
867 | if (size != '\0' && size != 'b') | |
0df8b418 MS |
868 | warning (_("Unable to display strings with " |
869 | "size '%c', using 'b' instead."), size); | |
9a22f0d0 PM |
870 | size = 'b'; |
871 | val_type = builtin_type (next_gdbarch)->builtin_int8; | |
872 | } | |
873 | } | |
874 | ||
c906108c SS |
875 | maxelts = 8; |
876 | if (size == 'w') | |
877 | maxelts = 4; | |
878 | if (size == 'g') | |
879 | maxelts = 2; | |
880 | if (format == 's' || format == 'i') | |
881 | maxelts = 1; | |
882 | ||
79a45b7d TT |
883 | get_formatted_print_options (&opts, format); |
884 | ||
c906108c SS |
885 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
886 | with the address of the next one at the start of each line. */ | |
887 | ||
888 | while (count > 0) | |
889 | { | |
890 | QUIT; | |
2b28d209 PP |
891 | if (format == 'i') |
892 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 893 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
894 | printf_filtered (":"); |
895 | for (i = maxelts; | |
896 | i > 0 && count > 0; | |
897 | i--, count--) | |
898 | { | |
899 | printf_filtered ("\t"); | |
900 | /* Note that print_formatted sets next_address for the next | |
901 | object. */ | |
902 | last_examine_address = next_address; | |
903 | ||
904 | if (last_examine_value) | |
905 | value_free (last_examine_value); | |
906 | ||
907 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
908 | Instead, to avoid the possibility of a fetched value not |
909 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
910 | uses it. When examining an instruction stream, the |
911 | disassembler will perform its own memory fetch using just | |
912 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
913 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
914 | is left with the byte sequence from the last complete | |
0df8b418 | 915 | instruction fetched from memory? */ |
00a4c844 | 916 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
917 | |
918 | if (last_examine_value) | |
919 | release_value (last_examine_value); | |
920 | ||
79a45b7d | 921 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
922 | |
923 | /* Display any branch delay slots following the final insn. */ | |
924 | if (format == 'i' && count == 1) | |
925 | count += branch_delay_insns; | |
c906108c SS |
926 | } |
927 | printf_filtered ("\n"); | |
928 | gdb_flush (gdb_stdout); | |
929 | } | |
930 | } | |
931 | \f | |
932 | static void | |
fba45db2 | 933 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
934 | { |
935 | if (fmt.size != 0) | |
8a3fe4f8 | 936 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 937 | if (fmt.count != 1) |
8a3fe4f8 | 938 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 939 | cmdname); |
ea37ba09 | 940 | if (fmt.format == 'i') |
8a3fe4f8 | 941 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
942 | fmt.format, cmdname); |
943 | } | |
944 | ||
675dcf4f | 945 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 946 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 947 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
948 | |
949 | static void | |
6f937416 | 950 | print_command_1 (const char *exp, int voidprint) |
c906108c SS |
951 | { |
952 | struct expression *expr; | |
27833de7 | 953 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); |
52f0bd74 | 954 | char format = 0; |
3d6d86c6 | 955 | struct value *val; |
c906108c | 956 | struct format_data fmt; |
c906108c | 957 | |
c906108c SS |
958 | if (exp && *exp == '/') |
959 | { | |
960 | exp++; | |
961 | fmt = decode_format (&exp, last_format, 0); | |
962 | validate_format (fmt, "print"); | |
963 | last_format = format = fmt.format; | |
964 | } | |
965 | else | |
966 | { | |
967 | fmt.count = 1; | |
968 | fmt.format = 0; | |
969 | fmt.size = 0; | |
a6bac58e | 970 | fmt.raw = 0; |
c906108c SS |
971 | } |
972 | ||
973 | if (exp && *exp) | |
974 | { | |
c906108c | 975 | expr = parse_expression (exp); |
27833de7 | 976 | make_cleanup (free_current_contents, &expr); |
c906108c | 977 | val = evaluate_expression (expr); |
c906108c SS |
978 | } |
979 | else | |
980 | val = access_value_history (0); | |
981 | ||
df407dfe AC |
982 | if (voidprint || (val && value_type (val) && |
983 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 984 | { |
79a45b7d | 985 | struct value_print_options opts; |
c906108c SS |
986 | int histindex = record_latest_value (val); |
987 | ||
eddf0bae | 988 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 989 | |
eddf0bae | 990 | printf_filtered ("$%d = ", histindex); |
c906108c | 991 | |
eddf0bae | 992 | annotate_value_history_value (); |
c906108c | 993 | |
79a45b7d | 994 | get_formatted_print_options (&opts, format); |
a6bac58e | 995 | opts.raw = fmt.raw; |
79a45b7d TT |
996 | |
997 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
998 | printf_filtered ("\n"); |
999 | ||
eddf0bae | 1000 | annotate_value_history_end (); |
c906108c SS |
1001 | } |
1002 | ||
27833de7 | 1003 | do_cleanups (old_chain); |
c906108c SS |
1004 | } |
1005 | ||
c906108c | 1006 | static void |
fba45db2 | 1007 | print_command (char *exp, int from_tty) |
c906108c | 1008 | { |
e93a8774 | 1009 | print_command_1 (exp, 1); |
c906108c SS |
1010 | } |
1011 | ||
675dcf4f | 1012 | /* Same as print, except it doesn't print void results. */ |
c906108c | 1013 | static void |
fba45db2 | 1014 | call_command (char *exp, int from_tty) |
c906108c | 1015 | { |
e93a8774 | 1016 | print_command_1 (exp, 0); |
c906108c SS |
1017 | } |
1018 | ||
6f937416 PA |
1019 | /* Implementation of the "output" command. */ |
1020 | ||
1021 | static void | |
fba45db2 | 1022 | output_command (char *exp, int from_tty) |
6f937416 PA |
1023 | { |
1024 | output_command_const (exp, from_tty); | |
1025 | } | |
1026 | ||
1027 | /* Like output_command, but takes a const string as argument. */ | |
1028 | ||
1029 | void | |
1030 | output_command_const (const char *exp, int from_tty) | |
c906108c SS |
1031 | { |
1032 | struct expression *expr; | |
52f0bd74 AC |
1033 | struct cleanup *old_chain; |
1034 | char format = 0; | |
3d6d86c6 | 1035 | struct value *val; |
c906108c | 1036 | struct format_data fmt; |
79a45b7d | 1037 | struct value_print_options opts; |
c906108c | 1038 | |
777ea8f1 | 1039 | fmt.size = 0; |
a6bac58e | 1040 | fmt.raw = 0; |
777ea8f1 | 1041 | |
c906108c SS |
1042 | if (exp && *exp == '/') |
1043 | { | |
1044 | exp++; | |
1045 | fmt = decode_format (&exp, 0, 0); | |
1046 | validate_format (fmt, "output"); | |
1047 | format = fmt.format; | |
1048 | } | |
1049 | ||
1050 | expr = parse_expression (exp); | |
c13c43fd | 1051 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1052 | |
1053 | val = evaluate_expression (expr); | |
1054 | ||
df407dfe | 1055 | annotate_value_begin (value_type (val)); |
c906108c | 1056 | |
79a45b7d | 1057 | get_formatted_print_options (&opts, format); |
a6bac58e | 1058 | opts.raw = fmt.raw; |
79a45b7d | 1059 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1060 | |
1061 | annotate_value_end (); | |
1062 | ||
2acceee2 JM |
1063 | wrap_here (""); |
1064 | gdb_flush (gdb_stdout); | |
1065 | ||
c906108c SS |
1066 | do_cleanups (old_chain); |
1067 | } | |
1068 | ||
c906108c | 1069 | static void |
fba45db2 | 1070 | set_command (char *exp, int from_tty) |
c906108c SS |
1071 | { |
1072 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1073 | struct cleanup *old_chain = |
c13c43fd | 1074 | make_cleanup (free_current_contents, &expr); |
ad3bbd48 | 1075 | |
0ece64fd TG |
1076 | if (expr->nelts >= 1) |
1077 | switch (expr->elts[0].opcode) | |
1078 | { | |
1079 | case UNOP_PREINCREMENT: | |
1080 | case UNOP_POSTINCREMENT: | |
1081 | case UNOP_PREDECREMENT: | |
1082 | case UNOP_POSTDECREMENT: | |
1083 | case BINOP_ASSIGN: | |
1084 | case BINOP_ASSIGN_MODIFY: | |
1085 | case BINOP_COMMA: | |
1086 | break; | |
1087 | default: | |
1088 | warning | |
1089 | (_("Expression is not an assignment (and might have no effect)")); | |
1090 | } | |
52b3699b | 1091 | |
c906108c SS |
1092 | evaluate_expression (expr); |
1093 | do_cleanups (old_chain); | |
1094 | } | |
1095 | ||
c906108c | 1096 | static void |
fba45db2 | 1097 | sym_info (char *arg, int from_tty) |
c906108c SS |
1098 | { |
1099 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1100 | struct objfile *objfile; |
1101 | struct obj_section *osect; | |
c5aa993b JM |
1102 | CORE_ADDR addr, sect_addr; |
1103 | int matches = 0; | |
1104 | unsigned int offset; | |
c906108c SS |
1105 | |
1106 | if (!arg) | |
e2e0b3e5 | 1107 | error_no_arg (_("address")); |
c906108c SS |
1108 | |
1109 | addr = parse_and_eval_address (arg); | |
1110 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1111 | { |
94277a38 DJ |
1112 | /* Only process each object file once, even if there's a separate |
1113 | debug file. */ | |
1114 | if (objfile->separate_debug_objfile_backlink) | |
1115 | continue; | |
1116 | ||
714835d5 | 1117 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1118 | |
f1f6aadf PA |
1119 | if (obj_section_addr (osect) <= sect_addr |
1120 | && sect_addr < obj_section_endaddr (osect) | |
7cbd4a93 TT |
1121 | && (msymbol |
1122 | = lookup_minimal_symbol_by_pc_section (sect_addr, osect).minsym)) | |
c5aa993b | 1123 | { |
c14c28ba | 1124 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1125 | char *loc_string; |
1126 | struct cleanup *old_chain; | |
c14c28ba | 1127 | |
c5aa993b | 1128 | matches = 1; |
77e371c0 | 1129 | offset = sect_addr - MSYMBOL_VALUE_ADDRESS (objfile, msymbol); |
c14c28ba PP |
1130 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1131 | sec_name = osect->the_bfd_section->name; | |
efd66ac6 | 1132 | msym_name = MSYMBOL_PRINT_NAME (msymbol); |
c14c28ba | 1133 | |
e2fd701e DE |
1134 | /* Don't print the offset if it is zero. |
1135 | We assume there's no need to handle i18n of "sym + offset". */ | |
1136 | if (offset) | |
549ba0f8 | 1137 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1138 | else |
549ba0f8 | 1139 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1140 | |
1141 | /* Use a cleanup to free loc_string in case the user quits | |
1142 | a pagination request inside printf_filtered. */ | |
1143 | old_chain = make_cleanup (xfree, loc_string); | |
1144 | ||
4262abfb JK |
1145 | gdb_assert (osect->objfile && objfile_name (osect->objfile)); |
1146 | obj_name = objfile_name (osect->objfile); | |
c14c28ba PP |
1147 | |
1148 | if (MULTI_OBJFILE_P ()) | |
1149 | if (pc_in_unmapped_range (addr, osect)) | |
1150 | if (section_is_overlay (osect)) | |
e2fd701e | 1151 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1152 | "%s overlay section %s of %s\n"), |
e2fd701e | 1153 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1154 | else |
e2fd701e | 1155 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1156 | "section %s of %s\n"), |
e2fd701e | 1157 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1158 | else |
1159 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1160 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1161 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1162 | else |
e2fd701e DE |
1163 | printf_filtered (_("%s in section %s of %s\n"), |
1164 | loc_string, sec_name, obj_name); | |
c5aa993b | 1165 | else |
c14c28ba PP |
1166 | if (pc_in_unmapped_range (addr, osect)) |
1167 | if (section_is_overlay (osect)) | |
e2fd701e | 1168 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1169 | "section %s\n"), |
e2fd701e | 1170 | loc_string, mapped, sec_name); |
c14c28ba | 1171 | else |
e2fd701e DE |
1172 | printf_filtered (_("%s in load address range of section %s\n"), |
1173 | loc_string, sec_name); | |
c14c28ba PP |
1174 | else |
1175 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1176 | printf_filtered (_("%s in %s overlay section %s\n"), |
1177 | loc_string, mapped, sec_name); | |
c14c28ba | 1178 | else |
e2fd701e DE |
1179 | printf_filtered (_("%s in section %s\n"), |
1180 | loc_string, sec_name); | |
1181 | ||
1182 | do_cleanups (old_chain); | |
c5aa993b JM |
1183 | } |
1184 | } | |
c906108c | 1185 | if (matches == 0) |
a3f17187 | 1186 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1187 | } |
1188 | ||
c906108c | 1189 | static void |
fba45db2 | 1190 | address_info (char *exp, int from_tty) |
c906108c | 1191 | { |
768a979c UW |
1192 | struct gdbarch *gdbarch; |
1193 | int regno; | |
52f0bd74 | 1194 | struct symbol *sym; |
7c7b6655 | 1195 | struct bound_minimal_symbol msymbol; |
52f0bd74 | 1196 | long val; |
714835d5 | 1197 | struct obj_section *section; |
08922a10 | 1198 | CORE_ADDR load_addr, context_pc = 0; |
1993b719 | 1199 | struct field_of_this_result is_a_field_of_this; |
c906108c SS |
1200 | |
1201 | if (exp == 0) | |
8a3fe4f8 | 1202 | error (_("Argument required.")); |
c906108c | 1203 | |
08922a10 | 1204 | sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN, |
2570f2b7 | 1205 | &is_a_field_of_this); |
c906108c SS |
1206 | if (sym == NULL) |
1207 | { | |
1993b719 | 1208 | if (is_a_field_of_this.type != NULL) |
c906108c SS |
1209 | { |
1210 | printf_filtered ("Symbol \""); | |
1211 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1212 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1213 | printf_filtered ("\" is a field of the local class variable "); |
1214 | if (current_language->la_language == language_objc) | |
2625d86c | 1215 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1216 | else |
2625d86c | 1217 | printf_filtered ("`this'\n"); |
c906108c SS |
1218 | return; |
1219 | } | |
1220 | ||
7c7b6655 | 1221 | msymbol = lookup_bound_minimal_symbol (exp); |
c906108c | 1222 | |
7c7b6655 | 1223 | if (msymbol.minsym != NULL) |
c906108c | 1224 | { |
7c7b6655 | 1225 | struct objfile *objfile = msymbol.objfile; |
e27d198c TT |
1226 | |
1227 | gdbarch = get_objfile_arch (objfile); | |
77e371c0 | 1228 | load_addr = BMSYMBOL_VALUE_ADDRESS (msymbol); |
c906108c SS |
1229 | |
1230 | printf_filtered ("Symbol \""); | |
1231 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1232 | current_language->la_language, DMGL_ANSI); | |
1233 | printf_filtered ("\" is at "); | |
5af949e3 | 1234 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1235 | printf_filtered (" in a file compiled without debugging"); |
efd66ac6 | 1236 | section = MSYMBOL_OBJ_SECTION (objfile, msymbol.minsym); |
c906108c SS |
1237 | if (section_is_overlay (section)) |
1238 | { | |
1239 | load_addr = overlay_unmapped_address (load_addr, section); | |
1240 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1241 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1242 | printf_filtered (" in overlay section %s", |
1243 | section->the_bfd_section->name); | |
c906108c SS |
1244 | } |
1245 | printf_filtered (".\n"); | |
1246 | } | |
1247 | else | |
8a3fe4f8 | 1248 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1249 | return; |
1250 | } | |
1251 | ||
1252 | printf_filtered ("Symbol \""); | |
3567439c | 1253 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1254 | current_language->la_language, DMGL_ANSI); |
1255 | printf_filtered ("\" is "); | |
c5aa993b | 1256 | val = SYMBOL_VALUE (sym); |
e27d198c | 1257 | section = SYMBOL_OBJ_SECTION (SYMBOL_OBJFILE (sym), sym); |
768a979c | 1258 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c | 1259 | |
24d6c2a0 TT |
1260 | if (SYMBOL_COMPUTED_OPS (sym) != NULL) |
1261 | { | |
1262 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc, | |
1263 | gdb_stdout); | |
1264 | printf_filtered (".\n"); | |
1265 | return; | |
1266 | } | |
1267 | ||
c906108c SS |
1268 | switch (SYMBOL_CLASS (sym)) |
1269 | { | |
1270 | case LOC_CONST: | |
1271 | case LOC_CONST_BYTES: | |
1272 | printf_filtered ("constant"); | |
1273 | break; | |
1274 | ||
1275 | case LOC_LABEL: | |
1276 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1277 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1278 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1279 | if (section_is_overlay (section)) |
1280 | { | |
1281 | load_addr = overlay_unmapped_address (load_addr, section); | |
1282 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1283 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1284 | printf_filtered (" in overlay section %s", |
1285 | section->the_bfd_section->name); | |
c906108c SS |
1286 | } |
1287 | break; | |
1288 | ||
4c2df51b | 1289 | case LOC_COMPUTED: |
24d6c2a0 | 1290 | gdb_assert_not_reached (_("LOC_COMPUTED variable missing a method")); |
4c2df51b | 1291 | |
c906108c | 1292 | case LOC_REGISTER: |
768a979c UW |
1293 | /* GDBARCH is the architecture associated with the objfile the symbol |
1294 | is defined in; the target architecture may be different, and may | |
1295 | provide additional registers. However, we do not know the target | |
1296 | architecture at this point. We assume the objfile architecture | |
1297 | will contain all the standard registers that occur in debug info | |
1298 | in that objfile. */ | |
1299 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1300 | ||
2a2d4dc3 AS |
1301 | if (SYMBOL_IS_ARGUMENT (sym)) |
1302 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1303 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1304 | else |
1305 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1306 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1307 | break; |
1308 | ||
1309 | case LOC_STATIC: | |
a3f17187 | 1310 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1311 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1312 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1313 | if (section_is_overlay (section)) |
1314 | { | |
1315 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1316 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1317 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1318 | printf_filtered (_(" in overlay section %s"), |
1319 | section->the_bfd_section->name); | |
c906108c SS |
1320 | } |
1321 | break; | |
1322 | ||
c906108c | 1323 | case LOC_REGPARM_ADDR: |
768a979c UW |
1324 | /* Note comment at LOC_REGISTER. */ |
1325 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1326 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1327 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1328 | break; |
1329 | ||
1330 | case LOC_ARG: | |
a3f17187 | 1331 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1332 | break; |
1333 | ||
c906108c | 1334 | case LOC_LOCAL: |
a3f17187 | 1335 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1336 | break; |
1337 | ||
1338 | case LOC_REF_ARG: | |
a3f17187 | 1339 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1340 | break; |
1341 | ||
c906108c | 1342 | case LOC_TYPEDEF: |
a3f17187 | 1343 | printf_filtered (_("a typedef")); |
c906108c SS |
1344 | break; |
1345 | ||
1346 | case LOC_BLOCK: | |
a3f17187 | 1347 | printf_filtered (_("a function at address ")); |
675dcf4f | 1348 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1349 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1350 | if (section_is_overlay (section)) |
1351 | { | |
1352 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1353 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1354 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1355 | printf_filtered (_(" in overlay section %s"), |
1356 | section->the_bfd_section->name); | |
c906108c SS |
1357 | } |
1358 | break; | |
1359 | ||
1360 | case LOC_UNRESOLVED: | |
1361 | { | |
e27d198c | 1362 | struct bound_minimal_symbol msym; |
c906108c | 1363 | |
e27d198c TT |
1364 | msym = lookup_minimal_symbol_and_objfile (SYMBOL_LINKAGE_NAME (sym)); |
1365 | if (msym.minsym == NULL) | |
c906108c SS |
1366 | printf_filtered ("unresolved"); |
1367 | else | |
1368 | { | |
efd66ac6 | 1369 | section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym); |
77e371c0 | 1370 | load_addr = BMSYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1371 | |
1372 | if (section | |
1373 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1374 | printf_filtered (_("a thread-local variable at offset %s " | |
1375 | "in the thread-local storage for `%s'"), | |
5af949e3 | 1376 | paddress (gdbarch, load_addr), |
4262abfb | 1377 | objfile_name (section->objfile)); |
e0740f77 | 1378 | else |
c906108c | 1379 | { |
e0740f77 | 1380 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1381 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1382 | if (section_is_overlay (section)) |
1383 | { | |
1384 | load_addr = overlay_unmapped_address (load_addr, section); | |
1385 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1386 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1387 | printf_filtered (_(" in overlay section %s"), |
1388 | section->the_bfd_section->name); | |
1389 | } | |
c906108c SS |
1390 | } |
1391 | } | |
1392 | } | |
1393 | break; | |
1394 | ||
c906108c | 1395 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1396 | printf_filtered (_("optimized out")); |
c906108c | 1397 | break; |
c5aa993b | 1398 | |
c906108c | 1399 | default: |
a3f17187 | 1400 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1401 | break; |
1402 | } | |
1403 | printf_filtered (".\n"); | |
1404 | } | |
1405 | \f | |
675dcf4f MK |
1406 | |
1407 | static void | |
fba45db2 | 1408 | x_command (char *exp, int from_tty) |
c906108c SS |
1409 | { |
1410 | struct expression *expr; | |
1411 | struct format_data fmt; | |
1412 | struct cleanup *old_chain; | |
1413 | struct value *val; | |
1414 | ||
a6bac58e | 1415 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1416 | fmt.size = last_size; |
1417 | fmt.count = 1; | |
a6bac58e | 1418 | fmt.raw = 0; |
c906108c SS |
1419 | |
1420 | if (exp && *exp == '/') | |
1421 | { | |
6f937416 PA |
1422 | const char *tmp = exp + 1; |
1423 | ||
1424 | fmt = decode_format (&tmp, last_format, last_size); | |
1425 | exp = (char *) tmp; | |
c906108c SS |
1426 | } |
1427 | ||
1428 | /* If we have an expression, evaluate it and use it as the address. */ | |
1429 | ||
1430 | if (exp != 0 && *exp != 0) | |
1431 | { | |
1432 | expr = parse_expression (exp); | |
675dcf4f MK |
1433 | /* Cause expression not to be there any more if this command is |
1434 | repeated with Newline. But don't clobber a user-defined | |
1435 | command's definition. */ | |
c906108c SS |
1436 | if (from_tty) |
1437 | *exp = 0; | |
c13c43fd | 1438 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1439 | val = evaluate_expression (expr); |
df407dfe | 1440 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
e1c34c5d | 1441 | val = coerce_ref (val); |
c906108c | 1442 | /* In rvalue contexts, such as this, functions are coerced into |
c5aa993b | 1443 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1444 | if (/* last_format == 'i' && */ |
df407dfe | 1445 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1446 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1447 | next_address = value_address (val); |
c906108c | 1448 | else |
1aa20aa8 | 1449 | next_address = value_as_address (val); |
5d3729b5 UW |
1450 | |
1451 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1452 | do_cleanups (old_chain); |
1453 | } | |
1454 | ||
5d3729b5 UW |
1455 | if (!next_gdbarch) |
1456 | error_no_arg (_("starting display address")); | |
1457 | ||
1458 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1459 | |
675dcf4f | 1460 | /* If the examine succeeds, we remember its size and format for next |
9a22f0d0 PM |
1461 | time. Set last_size to 'b' for strings. */ |
1462 | if (fmt.format == 's') | |
1463 | last_size = 'b'; | |
1464 | else | |
1465 | last_size = fmt.size; | |
c906108c SS |
1466 | last_format = fmt.format; |
1467 | ||
0df8b418 | 1468 | /* Set a couple of internal variables if appropriate. */ |
c906108c SS |
1469 | if (last_examine_value) |
1470 | { | |
1471 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1472 | the correct pointer type. */ |
4478b372 | 1473 | struct type *pointer_type |
df407dfe | 1474 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1475 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1476 | value_from_pointer (pointer_type, |
1477 | last_examine_address)); | |
c5aa993b | 1478 | |
675dcf4f MK |
1479 | /* Make contents of last address examined available to the user |
1480 | as $__. If the last value has not been fetched from memory | |
1481 | then don't fetch it now; instead mark it by voiding the $__ | |
1482 | variable. */ | |
d69fe07e | 1483 | if (value_lazy (last_examine_value)) |
4fa62494 | 1484 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1485 | else |
1486 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1487 | } | |
1488 | } | |
c906108c | 1489 | \f |
c5aa993b | 1490 | |
c906108c SS |
1491 | /* Add an expression to the auto-display chain. |
1492 | Specify the expression. */ | |
1493 | ||
1494 | static void | |
6f937416 | 1495 | display_command (char *arg, int from_tty) |
c906108c SS |
1496 | { |
1497 | struct format_data fmt; | |
52f0bd74 AC |
1498 | struct expression *expr; |
1499 | struct display *new; | |
c906108c | 1500 | int display_it = 1; |
6f937416 | 1501 | const char *exp = arg; |
c906108c SS |
1502 | |
1503 | #if defined(TUI) | |
021e7609 AC |
1504 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1505 | `tui_version'. */ | |
fd33e6cb | 1506 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1507 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1508 | #endif |
1509 | ||
1510 | if (display_it) | |
1511 | { | |
1512 | if (exp == 0) | |
1513 | { | |
1514 | do_displays (); | |
1515 | return; | |
1516 | } | |
1517 | ||
1518 | if (*exp == '/') | |
1519 | { | |
1520 | exp++; | |
1521 | fmt = decode_format (&exp, 0, 0); | |
1522 | if (fmt.size && fmt.format == 0) | |
1523 | fmt.format = 'x'; | |
1524 | if (fmt.format == 'i' || fmt.format == 's') | |
1525 | fmt.size = 'b'; | |
1526 | } | |
1527 | else | |
1528 | { | |
1529 | fmt.format = 0; | |
1530 | fmt.size = 0; | |
1531 | fmt.count = 0; | |
a6bac58e | 1532 | fmt.raw = 0; |
c906108c SS |
1533 | } |
1534 | ||
a3247a22 | 1535 | innermost_block = NULL; |
c906108c SS |
1536 | expr = parse_expression (exp); |
1537 | ||
1538 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1539 | ||
fa8a61dc | 1540 | new->exp_string = xstrdup (exp); |
c906108c SS |
1541 | new->exp = expr; |
1542 | new->block = innermost_block; | |
6c95b8df | 1543 | new->pspace = current_program_space; |
c906108c SS |
1544 | new->next = display_chain; |
1545 | new->number = ++display_number; | |
1546 | new->format = fmt; | |
b5de0fa7 | 1547 | new->enabled_p = 1; |
c906108c SS |
1548 | display_chain = new; |
1549 | ||
91256dc2 | 1550 | if (from_tty) |
c906108c SS |
1551 | do_one_display (new); |
1552 | ||
1553 | dont_repeat (); | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | static void | |
fba45db2 | 1558 | free_display (struct display *d) |
c906108c | 1559 | { |
fa8a61dc | 1560 | xfree (d->exp_string); |
b8c9b27d KB |
1561 | xfree (d->exp); |
1562 | xfree (d); | |
c906108c SS |
1563 | } |
1564 | ||
675dcf4f MK |
1565 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1566 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1567 | |
1568 | void | |
fba45db2 | 1569 | clear_displays (void) |
c906108c | 1570 | { |
52f0bd74 | 1571 | struct display *d; |
c906108c SS |
1572 | |
1573 | while ((d = display_chain) != NULL) | |
1574 | { | |
c906108c | 1575 | display_chain = d->next; |
fa8a61dc | 1576 | free_display (d); |
c906108c SS |
1577 | } |
1578 | } | |
1579 | ||
3c3fe74c | 1580 | /* Delete the auto-display DISPLAY. */ |
c906108c SS |
1581 | |
1582 | static void | |
3c3fe74c | 1583 | delete_display (struct display *display) |
c906108c | 1584 | { |
3c3fe74c | 1585 | struct display *d; |
c906108c | 1586 | |
3c3fe74c | 1587 | gdb_assert (display != NULL); |
c906108c | 1588 | |
3c3fe74c PA |
1589 | if (display_chain == display) |
1590 | display_chain = display->next; | |
1591 | ||
1592 | ALL_DISPLAYS (d) | |
1593 | if (d->next == display) | |
c906108c | 1594 | { |
3c3fe74c PA |
1595 | d->next = display->next; |
1596 | break; | |
c906108c | 1597 | } |
3c3fe74c PA |
1598 | |
1599 | free_display (display); | |
c906108c SS |
1600 | } |
1601 | ||
c9174737 PA |
1602 | /* Call FUNCTION on each of the displays whose numbers are given in |
1603 | ARGS. DATA is passed unmodified to FUNCTION. */ | |
c906108c SS |
1604 | |
1605 | static void | |
c9174737 PA |
1606 | map_display_numbers (char *args, |
1607 | void (*function) (struct display *, | |
1608 | void *), | |
1609 | void *data) | |
c906108c | 1610 | { |
197f0a60 | 1611 | struct get_number_or_range_state state; |
c9174737 | 1612 | int num; |
c906108c | 1613 | |
c9174737 PA |
1614 | if (args == NULL) |
1615 | error_no_arg (_("one or more display numbers")); | |
c906108c | 1616 | |
197f0a60 | 1617 | init_number_or_range (&state, args); |
c9174737 | 1618 | |
197f0a60 | 1619 | while (!state.finished) |
c906108c | 1620 | { |
e799154c | 1621 | const char *p = state.string; |
c906108c | 1622 | |
197f0a60 | 1623 | num = get_number_or_range (&state); |
3c3fe74c PA |
1624 | if (num == 0) |
1625 | warning (_("bad display number at or near '%s'"), p); | |
1626 | else | |
1627 | { | |
c9174737 | 1628 | struct display *d, *tmp; |
c906108c | 1629 | |
c9174737 | 1630 | ALL_DISPLAYS_SAFE (d, tmp) |
3c3fe74c PA |
1631 | if (d->number == num) |
1632 | break; | |
1633 | if (d == NULL) | |
1634 | printf_unfiltered (_("No display number %d.\n"), num); | |
1635 | else | |
c9174737 | 1636 | function (d, data); |
3c3fe74c | 1637 | } |
c906108c | 1638 | } |
c9174737 PA |
1639 | } |
1640 | ||
1641 | /* Callback for map_display_numbers, that deletes a display. */ | |
1642 | ||
1643 | static void | |
1644 | do_delete_display (struct display *d, void *data) | |
1645 | { | |
1646 | delete_display (d); | |
1647 | } | |
1648 | ||
1649 | /* "undisplay" command. */ | |
1650 | ||
1651 | static void | |
1652 | undisplay_command (char *args, int from_tty) | |
1653 | { | |
c9174737 PA |
1654 | if (args == NULL) |
1655 | { | |
1656 | if (query (_("Delete all auto-display expressions? "))) | |
1657 | clear_displays (); | |
1658 | dont_repeat (); | |
1659 | return; | |
1660 | } | |
1661 | ||
1662 | map_display_numbers (args, do_delete_display, NULL); | |
c906108c SS |
1663 | dont_repeat (); |
1664 | } | |
1665 | ||
1666 | /* Display a single auto-display. | |
1667 | Do nothing if the display cannot be printed in the current context, | |
0df8b418 | 1668 | or if the display is disabled. */ |
c906108c SS |
1669 | |
1670 | static void | |
fba45db2 | 1671 | do_one_display (struct display *d) |
c906108c | 1672 | { |
af6e93b2 | 1673 | struct cleanup *old_chain; |
c906108c SS |
1674 | int within_current_scope; |
1675 | ||
b5de0fa7 | 1676 | if (d->enabled_p == 0) |
c906108c SS |
1677 | return; |
1678 | ||
704e9165 UW |
1679 | /* The expression carries the architecture that was used at parse time. |
1680 | This is a problem if the expression depends on architecture features | |
1681 | (e.g. register numbers), and the current architecture is now different. | |
1682 | For example, a display statement like "display/i $pc" is expected to | |
1683 | display the PC register of the current architecture, not the arch at | |
1684 | the time the display command was given. Therefore, we re-parse the | |
1685 | expression if the current architecture has changed. */ | |
1686 | if (d->exp != NULL && d->exp->gdbarch != get_current_arch ()) | |
1687 | { | |
1688 | xfree (d->exp); | |
1689 | d->exp = NULL; | |
1690 | d->block = NULL; | |
1691 | } | |
1692 | ||
a3247a22 PP |
1693 | if (d->exp == NULL) |
1694 | { | |
1695 | volatile struct gdb_exception ex; | |
ad3bbd48 | 1696 | |
a3247a22 PP |
1697 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1698 | { | |
1699 | innermost_block = NULL; | |
1700 | d->exp = parse_expression (d->exp_string); | |
1701 | d->block = innermost_block; | |
1702 | } | |
1703 | if (ex.reason < 0) | |
1704 | { | |
1705 | /* Can't re-parse the expression. Disable this display item. */ | |
1706 | d->enabled_p = 0; | |
1707 | warning (_("Unable to display \"%s\": %s"), | |
1708 | d->exp_string, ex.message); | |
1709 | return; | |
1710 | } | |
1711 | } | |
1712 | ||
c906108c | 1713 | if (d->block) |
6c95b8df PA |
1714 | { |
1715 | if (d->pspace == current_program_space) | |
1716 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1717 | else | |
1718 | within_current_scope = 0; | |
1719 | } | |
c906108c SS |
1720 | else |
1721 | within_current_scope = 1; | |
1722 | if (!within_current_scope) | |
1723 | return; | |
1724 | ||
9d8fa392 | 1725 | old_chain = make_cleanup_restore_integer (¤t_display_number); |
c906108c SS |
1726 | current_display_number = d->number; |
1727 | ||
1728 | annotate_display_begin (); | |
1729 | printf_filtered ("%d", d->number); | |
1730 | annotate_display_number_end (); | |
1731 | printf_filtered (": "); | |
1732 | if (d->format.size) | |
1733 | { | |
9d8fa392 | 1734 | volatile struct gdb_exception ex; |
c906108c SS |
1735 | |
1736 | annotate_display_format (); | |
1737 | ||
1738 | printf_filtered ("x/"); | |
1739 | if (d->format.count != 1) | |
1740 | printf_filtered ("%d", d->format.count); | |
1741 | printf_filtered ("%c", d->format.format); | |
1742 | if (d->format.format != 'i' && d->format.format != 's') | |
1743 | printf_filtered ("%c", d->format.size); | |
1744 | printf_filtered (" "); | |
1745 | ||
1746 | annotate_display_expression (); | |
1747 | ||
fa8a61dc | 1748 | puts_filtered (d->exp_string); |
c906108c SS |
1749 | annotate_display_expression_end (); |
1750 | ||
6a2eb474 | 1751 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1752 | printf_filtered ("\n"); |
1753 | else | |
1754 | printf_filtered (" "); | |
c5aa993b | 1755 | |
c906108c SS |
1756 | annotate_display_value (); |
1757 | ||
9d8fa392 PA |
1758 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
1759 | { | |
1760 | struct value *val; | |
1761 | CORE_ADDR addr; | |
1762 | ||
1763 | val = evaluate_expression (d->exp); | |
1764 | addr = value_as_address (val); | |
1765 | if (d->format.format == 'i') | |
1766 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); | |
1767 | do_examine (d->format, d->exp->gdbarch, addr); | |
1768 | } | |
1769 | if (ex.reason < 0) | |
1770 | fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message); | |
c906108c SS |
1771 | } |
1772 | else | |
1773 | { | |
79a45b7d | 1774 | struct value_print_options opts; |
9d8fa392 | 1775 | volatile struct gdb_exception ex; |
79a45b7d | 1776 | |
c906108c SS |
1777 | annotate_display_format (); |
1778 | ||
1779 | if (d->format.format) | |
1780 | printf_filtered ("/%c ", d->format.format); | |
1781 | ||
1782 | annotate_display_expression (); | |
1783 | ||
fa8a61dc | 1784 | puts_filtered (d->exp_string); |
c906108c SS |
1785 | annotate_display_expression_end (); |
1786 | ||
1787 | printf_filtered (" = "); | |
1788 | ||
1789 | annotate_display_expression (); | |
1790 | ||
79a45b7d | 1791 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1792 | opts.raw = d->format.raw; |
9d8fa392 PA |
1793 | |
1794 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
1795 | { | |
1796 | struct value *val; | |
1797 | ||
1798 | val = evaluate_expression (d->exp); | |
1799 | print_formatted (val, d->format.size, &opts, gdb_stdout); | |
1800 | } | |
1801 | if (ex.reason < 0) | |
1802 | fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message); | |
c906108c SS |
1803 | printf_filtered ("\n"); |
1804 | } | |
1805 | ||
1806 | annotate_display_end (); | |
1807 | ||
1808 | gdb_flush (gdb_stdout); | |
9d8fa392 | 1809 | do_cleanups (old_chain); |
c906108c SS |
1810 | } |
1811 | ||
1812 | /* Display all of the values on the auto-display chain which can be | |
1813 | evaluated in the current scope. */ | |
1814 | ||
1815 | void | |
fba45db2 | 1816 | do_displays (void) |
c906108c | 1817 | { |
52f0bd74 | 1818 | struct display *d; |
c906108c SS |
1819 | |
1820 | for (d = display_chain; d; d = d->next) | |
1821 | do_one_display (d); | |
1822 | } | |
1823 | ||
1824 | /* Delete the auto-display which we were in the process of displaying. | |
1825 | This is done when there is an error or a signal. */ | |
1826 | ||
1827 | void | |
fba45db2 | 1828 | disable_display (int num) |
c906108c | 1829 | { |
52f0bd74 | 1830 | struct display *d; |
c906108c SS |
1831 | |
1832 | for (d = display_chain; d; d = d->next) | |
1833 | if (d->number == num) | |
1834 | { | |
b5de0fa7 | 1835 | d->enabled_p = 0; |
c906108c SS |
1836 | return; |
1837 | } | |
a3f17187 | 1838 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1839 | } |
c5aa993b | 1840 | |
c906108c | 1841 | void |
fba45db2 | 1842 | disable_current_display (void) |
c906108c SS |
1843 | { |
1844 | if (current_display_number >= 0) | |
1845 | { | |
1846 | disable_display (current_display_number); | |
3e43a32a MS |
1847 | fprintf_unfiltered (gdb_stderr, |
1848 | _("Disabling display %d to " | |
1849 | "avoid infinite recursion.\n"), | |
c5aa993b | 1850 | current_display_number); |
c906108c SS |
1851 | } |
1852 | current_display_number = -1; | |
1853 | } | |
1854 | ||
1855 | static void | |
fba45db2 | 1856 | display_info (char *ignore, int from_tty) |
c906108c | 1857 | { |
52f0bd74 | 1858 | struct display *d; |
c906108c SS |
1859 | |
1860 | if (!display_chain) | |
a3f17187 | 1861 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1862 | else |
a3f17187 AC |
1863 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1864 | Num Enb Expression\n")); | |
c906108c SS |
1865 | |
1866 | for (d = display_chain; d; d = d->next) | |
1867 | { | |
b5de0fa7 | 1868 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1869 | if (d->format.size) |
1870 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1871 | d->format.format); |
c906108c SS |
1872 | else if (d->format.format) |
1873 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1874 | puts_filtered (d->exp_string); |
ae767bfb | 1875 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1876 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1877 | printf_filtered ("\n"); |
1878 | gdb_flush (gdb_stdout); | |
1879 | } | |
1880 | } | |
1881 | ||
c9174737 PA |
1882 | /* Callback fo map_display_numbers, that enables or disables the |
1883 | passed in display D. */ | |
1884 | ||
c906108c | 1885 | static void |
c9174737 | 1886 | do_enable_disable_display (struct display *d, void *data) |
c906108c | 1887 | { |
c9174737 PA |
1888 | d->enabled_p = *(int *) data; |
1889 | } | |
c906108c | 1890 | |
c9174737 PA |
1891 | /* Implamentation of both the "disable display" and "enable display" |
1892 | commands. ENABLE decides what to do. */ | |
1893 | ||
1894 | static void | |
1895 | enable_disable_display_command (char *args, int from_tty, int enable) | |
1896 | { | |
1897 | if (args == NULL) | |
c906108c | 1898 | { |
c9174737 | 1899 | struct display *d; |
c5aa993b | 1900 | |
c9174737 PA |
1901 | ALL_DISPLAYS (d) |
1902 | d->enabled_p = enable; | |
1903 | return; | |
1904 | } | |
c5aa993b | 1905 | |
c9174737 | 1906 | map_display_numbers (args, do_enable_disable_display, &enable); |
c906108c SS |
1907 | } |
1908 | ||
c9174737 PA |
1909 | /* The "enable display" command. */ |
1910 | ||
c906108c | 1911 | static void |
c9174737 | 1912 | enable_display_command (char *args, int from_tty) |
c906108c | 1913 | { |
c9174737 PA |
1914 | enable_disable_display_command (args, from_tty, 1); |
1915 | } | |
c5aa993b | 1916 | |
c9174737 | 1917 | /* The "disable display" command. */ |
c906108c | 1918 | |
c9174737 PA |
1919 | static void |
1920 | disable_display_command (char *args, int from_tty) | |
1921 | { | |
1922 | enable_disable_display_command (args, from_tty, 0); | |
c906108c | 1923 | } |
a3247a22 | 1924 | |
a3247a22 PP |
1925 | /* display_chain items point to blocks and expressions. Some expressions in |
1926 | turn may point to symbols. | |
1927 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1928 | obstack_free'd when a shared library is unloaded. | |
1929 | Clear pointers that are about to become dangling. | |
1930 | Both .exp and .block fields will be restored next time we need to display | |
1931 | an item by re-parsing .exp_string field in the new execution context. */ | |
1932 | ||
1933 | static void | |
63644780 | 1934 | clear_dangling_display_expressions (struct objfile *objfile) |
a3247a22 PP |
1935 | { |
1936 | struct display *d; | |
63644780 | 1937 | struct program_space *pspace; |
a3247a22 | 1938 | |
c0201579 JK |
1939 | /* With no symbol file we cannot have a block or expression from it. */ |
1940 | if (objfile == NULL) | |
1941 | return; | |
63644780 | 1942 | pspace = objfile->pspace; |
c0201579 | 1943 | if (objfile->separate_debug_objfile_backlink) |
63644780 NB |
1944 | { |
1945 | objfile = objfile->separate_debug_objfile_backlink; | |
1946 | gdb_assert (objfile->pspace == pspace); | |
1947 | } | |
c0201579 JK |
1948 | |
1949 | for (d = display_chain; d != NULL; d = d->next) | |
a3247a22 | 1950 | { |
63644780 | 1951 | if (d->pspace != pspace) |
c0201579 JK |
1952 | continue; |
1953 | ||
1954 | if (lookup_objfile_from_block (d->block) == objfile | |
1955 | || (d->exp && exp_uses_objfile (d->exp, objfile))) | |
1956 | { | |
1957 | xfree (d->exp); | |
1958 | d->exp = NULL; | |
1959 | d->block = NULL; | |
1960 | } | |
a3247a22 PP |
1961 | } |
1962 | } | |
c906108c | 1963 | \f |
c5aa993b | 1964 | |
675dcf4f | 1965 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1966 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1967 | name will be used. STREAM is the ui_file on which to print the | |
1968 | value. INDENT specifies the number of indent levels to print | |
8f043999 JK |
1969 | before printing the variable name. |
1970 | ||
1971 | This function invalidates FRAME. */ | |
c906108c SS |
1972 | |
1973 | void | |
aad95b57 TT |
1974 | print_variable_and_value (const char *name, struct symbol *var, |
1975 | struct frame_info *frame, | |
1976 | struct ui_file *stream, int indent) | |
c906108c | 1977 | { |
0f6a939d | 1978 | volatile struct gdb_exception except; |
c906108c | 1979 | |
aad95b57 TT |
1980 | if (!name) |
1981 | name = SYMBOL_PRINT_NAME (var); | |
1982 | ||
1983 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
0f6a939d PM |
1984 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1985 | { | |
1986 | struct value *val; | |
1987 | struct value_print_options opts; | |
aad95b57 | 1988 | |
0f6a939d PM |
1989 | val = read_var_value (var, frame); |
1990 | get_user_print_options (&opts); | |
3343315b | 1991 | opts.deref_ref = 1; |
0f6a939d | 1992 | common_val_print (val, stream, indent, &opts, current_language); |
8f043999 JK |
1993 | |
1994 | /* common_val_print invalidates FRAME when a pretty printer calls inferior | |
1995 | function. */ | |
1996 | frame = NULL; | |
0f6a939d PM |
1997 | } |
1998 | if (except.reason < 0) | |
1999 | fprintf_filtered(stream, "<error reading variable %s (%s)>", name, | |
2000 | except.message); | |
aad95b57 | 2001 | fprintf_filtered (stream, "\n"); |
c906108c SS |
2002 | } |
2003 | ||
c2792f5a DE |
2004 | /* Subroutine of ui_printf to simplify it. |
2005 | Print VALUE to STREAM using FORMAT. | |
e12f57ab | 2006 | VALUE is a C-style string on the target. */ |
c2792f5a DE |
2007 | |
2008 | static void | |
2009 | printf_c_string (struct ui_file *stream, const char *format, | |
2010 | struct value *value) | |
2011 | { | |
2012 | gdb_byte *str; | |
2013 | CORE_ADDR tem; | |
2014 | int j; | |
2015 | ||
2016 | tem = value_as_address (value); | |
2017 | ||
2018 | /* This is a %s argument. Find the length of the string. */ | |
2019 | for (j = 0;; j++) | |
2020 | { | |
2021 | gdb_byte c; | |
2022 | ||
2023 | QUIT; | |
2024 | read_memory (tem + j, &c, 1); | |
2025 | if (c == 0) | |
2026 | break; | |
2027 | } | |
2028 | ||
2029 | /* Copy the string contents into a string inside GDB. */ | |
2030 | str = (gdb_byte *) alloca (j + 1); | |
2031 | if (j != 0) | |
2032 | read_memory (tem, str, j); | |
2033 | str[j] = 0; | |
2034 | ||
2035 | fprintf_filtered (stream, format, (char *) str); | |
2036 | } | |
2037 | ||
2038 | /* Subroutine of ui_printf to simplify it. | |
2039 | Print VALUE to STREAM using FORMAT. | |
e12f57ab | 2040 | VALUE is a wide C-style string on the target. */ |
c2792f5a DE |
2041 | |
2042 | static void | |
2043 | printf_wide_c_string (struct ui_file *stream, const char *format, | |
2044 | struct value *value) | |
2045 | { | |
2046 | gdb_byte *str; | |
2047 | CORE_ADDR tem; | |
2048 | int j; | |
2049 | struct gdbarch *gdbarch = get_type_arch (value_type (value)); | |
2050 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
2051 | struct type *wctype = lookup_typename (current_language, gdbarch, | |
2052 | "wchar_t", NULL, 0); | |
2053 | int wcwidth = TYPE_LENGTH (wctype); | |
2054 | gdb_byte *buf = alloca (wcwidth); | |
2055 | struct obstack output; | |
2056 | struct cleanup *inner_cleanup; | |
2057 | ||
2058 | tem = value_as_address (value); | |
2059 | ||
2060 | /* This is a %s argument. Find the length of the string. */ | |
2061 | for (j = 0;; j += wcwidth) | |
2062 | { | |
2063 | QUIT; | |
2064 | read_memory (tem + j, buf, wcwidth); | |
2065 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) | |
2066 | break; | |
2067 | } | |
2068 | ||
2069 | /* Copy the string contents into a string inside GDB. */ | |
2070 | str = (gdb_byte *) alloca (j + wcwidth); | |
2071 | if (j != 0) | |
2072 | read_memory (tem, str, j); | |
2073 | memset (&str[j], 0, wcwidth); | |
2074 | ||
2075 | obstack_init (&output); | |
2076 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2077 | ||
2078 | convert_between_encodings (target_wide_charset (gdbarch), | |
2079 | host_charset (), | |
2080 | str, j, wcwidth, | |
2081 | &output, translit_char); | |
2082 | obstack_grow_str0 (&output, ""); | |
2083 | ||
2084 | fprintf_filtered (stream, format, obstack_base (&output)); | |
2085 | do_cleanups (inner_cleanup); | |
2086 | } | |
2087 | ||
2088 | /* Subroutine of ui_printf to simplify it. | |
2089 | Print VALUE, a decimal floating point value, to STREAM using FORMAT. */ | |
2090 | ||
2091 | static void | |
2092 | printf_decfloat (struct ui_file *stream, const char *format, | |
2093 | struct value *value) | |
2094 | { | |
2095 | const gdb_byte *param_ptr = value_contents (value); | |
2096 | ||
2097 | #if defined (PRINTF_HAS_DECFLOAT) | |
2098 | /* If we have native support for Decimal floating | |
2099 | printing, handle it here. */ | |
2100 | fprintf_filtered (stream, format, param_ptr); | |
2101 | #else | |
2102 | /* As a workaround until vasprintf has native support for DFP | |
2103 | we convert the DFP values to string and print them using | |
2104 | the %s format specifier. */ | |
2105 | const char *p; | |
2106 | ||
2107 | /* Parameter data. */ | |
2108 | struct type *param_type = value_type (value); | |
2109 | struct gdbarch *gdbarch = get_type_arch (param_type); | |
2110 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
2111 | ||
2112 | /* DFP output data. */ | |
2113 | struct value *dfp_value = NULL; | |
2114 | gdb_byte *dfp_ptr; | |
2115 | int dfp_len = 16; | |
2116 | gdb_byte dec[16]; | |
2117 | struct type *dfp_type = NULL; | |
2118 | char decstr[MAX_DECIMAL_STRING]; | |
2119 | ||
2120 | /* Points to the end of the string so that we can go back | |
2121 | and check for DFP length modifiers. */ | |
2122 | p = format + strlen (format); | |
2123 | ||
2124 | /* Look for the float/double format specifier. */ | |
2125 | while (*p != 'f' && *p != 'e' && *p != 'E' | |
2126 | && *p != 'g' && *p != 'G') | |
2127 | p--; | |
2128 | ||
2129 | /* Search for the '%' char and extract the size and type of | |
2130 | the output decimal value based on its modifiers | |
2131 | (%Hf, %Df, %DDf). */ | |
2132 | while (*--p != '%') | |
2133 | { | |
2134 | if (*p == 'H') | |
2135 | { | |
2136 | dfp_len = 4; | |
2137 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; | |
2138 | } | |
2139 | else if (*p == 'D' && *(p - 1) == 'D') | |
2140 | { | |
2141 | dfp_len = 16; | |
2142 | dfp_type = builtin_type (gdbarch)->builtin_declong; | |
2143 | p--; | |
2144 | } | |
2145 | else | |
2146 | { | |
2147 | dfp_len = 8; | |
2148 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; | |
2149 | } | |
2150 | } | |
2151 | ||
2152 | /* Conversion between different DFP types. */ | |
2153 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
2154 | decimal_convert (param_ptr, TYPE_LENGTH (param_type), | |
2155 | byte_order, dec, dfp_len, byte_order); | |
2156 | else | |
2157 | /* If this is a non-trivial conversion, just output 0. | |
2158 | A correct converted value can be displayed by explicitly | |
2159 | casting to a DFP type. */ | |
2160 | decimal_from_string (dec, dfp_len, byte_order, "0"); | |
2161 | ||
2162 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2163 | ||
2164 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2165 | ||
2166 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); | |
2167 | ||
2168 | /* Print the DFP value. */ | |
2169 | fprintf_filtered (stream, "%s", decstr); | |
2170 | #endif | |
2171 | } | |
2172 | ||
2173 | /* Subroutine of ui_printf to simplify it. | |
2174 | Print VALUE, a target pointer, to STREAM using FORMAT. */ | |
2175 | ||
2176 | static void | |
2177 | printf_pointer (struct ui_file *stream, const char *format, | |
2178 | struct value *value) | |
2179 | { | |
2180 | /* We avoid the host's %p because pointers are too | |
2181 | likely to be the wrong size. The only interesting | |
2182 | modifier for %p is a width; extract that, and then | |
2183 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2184 | ||
2185 | const char *p; | |
2186 | char *fmt, *fmt_p; | |
2187 | #ifdef PRINTF_HAS_LONG_LONG | |
2188 | long long val = value_as_long (value); | |
2189 | #else | |
2190 | long val = value_as_long (value); | |
2191 | #endif | |
2192 | ||
2193 | fmt = alloca (strlen (format) + 5); | |
2194 | ||
2195 | /* Copy up to the leading %. */ | |
2196 | p = format; | |
2197 | fmt_p = fmt; | |
2198 | while (*p) | |
2199 | { | |
2200 | int is_percent = (*p == '%'); | |
2201 | ||
2202 | *fmt_p++ = *p++; | |
2203 | if (is_percent) | |
2204 | { | |
2205 | if (*p == '%') | |
2206 | *fmt_p++ = *p++; | |
2207 | else | |
2208 | break; | |
2209 | } | |
2210 | } | |
2211 | ||
2212 | if (val != 0) | |
2213 | *fmt_p++ = '#'; | |
2214 | ||
2215 | /* Copy any width. */ | |
2216 | while (*p >= '0' && *p < '9') | |
2217 | *fmt_p++ = *p++; | |
2218 | ||
2219 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2220 | if (val != 0) | |
2221 | { | |
2222 | #ifdef PRINTF_HAS_LONG_LONG | |
2223 | *fmt_p++ = 'l'; | |
2224 | #endif | |
2225 | *fmt_p++ = 'l'; | |
2226 | *fmt_p++ = 'x'; | |
2227 | *fmt_p++ = '\0'; | |
2228 | fprintf_filtered (stream, fmt, val); | |
2229 | } | |
2230 | else | |
2231 | { | |
2232 | *fmt_p++ = 's'; | |
2233 | *fmt_p++ = '\0'; | |
2234 | fprintf_filtered (stream, fmt, "(nil)"); | |
2235 | } | |
2236 | } | |
2237 | ||
a04b0428 JB |
2238 | /* printf "printf format string" ARG to STREAM. */ |
2239 | ||
2240 | static void | |
bbc13ae3 | 2241 | ui_printf (const char *arg, struct ui_file *stream) |
c906108c | 2242 | { |
d3ce09f5 | 2243 | struct format_piece *fpieces; |
bbc13ae3 | 2244 | const char *s = arg; |
3d6d86c6 | 2245 | struct value **val_args; |
c906108c SS |
2246 | int allocated_args = 20; |
2247 | struct cleanup *old_cleanups; | |
2248 | ||
675dcf4f | 2249 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 2250 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2251 | |
2252 | if (s == 0) | |
e2e0b3e5 | 2253 | error_no_arg (_("format-control string and values to print")); |
c906108c | 2254 | |
bbc13ae3 | 2255 | s = skip_spaces_const (s); |
c906108c | 2256 | |
675dcf4f | 2257 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 2258 | if (*s++ != '"') |
8a3fe4f8 | 2259 | error (_("Bad format string, missing '\"'.")); |
c906108c | 2260 | |
d3ce09f5 | 2261 | fpieces = parse_format_string (&s); |
c906108c | 2262 | |
d3ce09f5 | 2263 | make_cleanup (free_format_pieces_cleanup, &fpieces); |
c906108c | 2264 | |
d3ce09f5 SS |
2265 | if (*s++ != '"') |
2266 | error (_("Bad format string, non-terminated '\"'.")); | |
2267 | ||
bbc13ae3 | 2268 | s = skip_spaces_const (s); |
c906108c SS |
2269 | |
2270 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2271 | error (_("Invalid argument syntax")); |
c906108c | 2272 | |
c5aa993b JM |
2273 | if (*s == ',') |
2274 | s++; | |
bbc13ae3 | 2275 | s = skip_spaces_const (s); |
c906108c | 2276 | |
c906108c | 2277 | { |
d3ce09f5 | 2278 | int nargs = 0; |
c906108c | 2279 | int nargs_wanted; |
d3ce09f5 SS |
2280 | int i, fr; |
2281 | char *current_substring; | |
c906108c | 2282 | |
c906108c | 2283 | nargs_wanted = 0; |
d3ce09f5 SS |
2284 | for (fr = 0; fpieces[fr].string != NULL; fr++) |
2285 | if (fpieces[fr].argclass != literal_piece) | |
2286 | ++nargs_wanted; | |
c906108c SS |
2287 | |
2288 | /* Now, parse all arguments and evaluate them. | |
2289 | Store the VALUEs in VAL_ARGS. */ | |
2290 | ||
2291 | while (*s != '\0') | |
2292 | { | |
bbc13ae3 | 2293 | const char *s1; |
ad3bbd48 | 2294 | |
c906108c | 2295 | if (nargs == allocated_args) |
f976f6d4 AC |
2296 | val_args = (struct value **) xrealloc ((char *) val_args, |
2297 | (allocated_args *= 2) | |
2298 | * sizeof (struct value *)); | |
a04b0428 JB |
2299 | s1 = s; |
2300 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2301 | |
c906108c SS |
2302 | nargs++; |
2303 | s = s1; | |
2304 | if (*s == ',') | |
2305 | s++; | |
2306 | } | |
c5aa993b | 2307 | |
c906108c | 2308 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2309 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2310 | |
2311 | /* Now actually print them. */ | |
d3ce09f5 SS |
2312 | i = 0; |
2313 | for (fr = 0; fpieces[fr].string != NULL; fr++) | |
c906108c | 2314 | { |
d3ce09f5 SS |
2315 | current_substring = fpieces[fr].string; |
2316 | switch (fpieces[fr].argclass) | |
c906108c SS |
2317 | { |
2318 | case string_arg: | |
c2792f5a | 2319 | printf_c_string (stream, current_substring, val_args[i]); |
c906108c | 2320 | break; |
6c7a06a3 | 2321 | case wide_string_arg: |
c2792f5a | 2322 | printf_wide_c_string (stream, current_substring, val_args[i]); |
6c7a06a3 TT |
2323 | break; |
2324 | case wide_char_arg: | |
2325 | { | |
50810684 UW |
2326 | struct gdbarch *gdbarch |
2327 | = get_type_arch (value_type (val_args[i])); | |
2328 | struct type *wctype = lookup_typename (current_language, gdbarch, | |
e6c014f2 | 2329 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2330 | struct type *valtype; |
2331 | struct obstack output; | |
2332 | struct cleanup *inner_cleanup; | |
2333 | const gdb_byte *bytes; | |
2334 | ||
2335 | valtype = value_type (val_args[i]); | |
2336 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2337 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2338 | error (_("expected wchar_t argument for %%lc")); | |
2339 | ||
2340 | bytes = value_contents (val_args[i]); | |
2341 | ||
2342 | obstack_init (&output); | |
2343 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2344 | ||
f870a310 | 2345 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2346 | host_charset (), |
2347 | bytes, TYPE_LENGTH (valtype), | |
2348 | TYPE_LENGTH (valtype), | |
2349 | &output, translit_char); | |
2350 | obstack_grow_str0 (&output, ""); | |
2351 | ||
f1421989 HZ |
2352 | fprintf_filtered (stream, current_substring, |
2353 | obstack_base (&output)); | |
6c7a06a3 TT |
2354 | do_cleanups (inner_cleanup); |
2355 | } | |
2356 | break; | |
c906108c SS |
2357 | case double_arg: |
2358 | { | |
b806fb9a UW |
2359 | struct type *type = value_type (val_args[i]); |
2360 | DOUBLEST val; | |
2361 | int inv; | |
2362 | ||
2363 | /* If format string wants a float, unchecked-convert the value | |
2364 | to floating point of the same size. */ | |
50810684 | 2365 | type = float_type_from_length (type); |
b806fb9a UW |
2366 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2367 | if (inv) | |
2368 | error (_("Invalid floating value found in program.")); | |
2369 | ||
f1421989 | 2370 | fprintf_filtered (stream, current_substring, (double) val); |
c906108c SS |
2371 | break; |
2372 | } | |
46e9880c DJ |
2373 | case long_double_arg: |
2374 | #ifdef HAVE_LONG_DOUBLE | |
2375 | { | |
b806fb9a UW |
2376 | struct type *type = value_type (val_args[i]); |
2377 | DOUBLEST val; | |
2378 | int inv; | |
2379 | ||
2380 | /* If format string wants a float, unchecked-convert the value | |
2381 | to floating point of the same size. */ | |
50810684 | 2382 | type = float_type_from_length (type); |
b806fb9a UW |
2383 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2384 | if (inv) | |
2385 | error (_("Invalid floating value found in program.")); | |
2386 | ||
f1421989 HZ |
2387 | fprintf_filtered (stream, current_substring, |
2388 | (long double) val); | |
46e9880c DJ |
2389 | break; |
2390 | } | |
2391 | #else | |
2392 | error (_("long double not supported in printf")); | |
2393 | #endif | |
c906108c | 2394 | case long_long_arg: |
74a0d9f6 | 2395 | #ifdef PRINTF_HAS_LONG_LONG |
c906108c SS |
2396 | { |
2397 | long long val = value_as_long (val_args[i]); | |
ad3bbd48 | 2398 | |
f1421989 | 2399 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2400 | break; |
2401 | } | |
2402 | #else | |
8a3fe4f8 | 2403 | error (_("long long not supported in printf")); |
c906108c SS |
2404 | #endif |
2405 | case int_arg: | |
2406 | { | |
46e9880c | 2407 | int val = value_as_long (val_args[i]); |
ad3bbd48 | 2408 | |
f1421989 | 2409 | fprintf_filtered (stream, current_substring, val); |
46e9880c DJ |
2410 | break; |
2411 | } | |
2412 | case long_arg: | |
2413 | { | |
c906108c | 2414 | long val = value_as_long (val_args[i]); |
ad3bbd48 | 2415 | |
f1421989 | 2416 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2417 | break; |
2418 | } | |
0aea4bf3 | 2419 | /* Handles decimal floating values. */ |
c2792f5a DE |
2420 | case decfloat_arg: |
2421 | printf_decfloat (stream, current_substring, val_args[i]); | |
2422 | break; | |
2025a643 | 2423 | case ptr_arg: |
c2792f5a DE |
2424 | printf_pointer (stream, current_substring, val_args[i]); |
2425 | break; | |
d3ce09f5 SS |
2426 | case literal_piece: |
2427 | /* Print a portion of the format string that has no | |
2428 | directives. Note that this will not include any | |
2429 | ordinary %-specs, but it might include "%%". That is | |
2430 | why we use printf_filtered and not puts_filtered here. | |
2431 | Also, we pass a dummy argument because some platforms | |
2432 | have modified GCC to include -Wformat-security by | |
2433 | default, which will warn here if there is no | |
2434 | argument. */ | |
2435 | fprintf_filtered (stream, current_substring, 0); | |
2436 | break; | |
675dcf4f MK |
2437 | default: |
2438 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2439 | _("failed internal consistency check")); |
c906108c | 2440 | } |
d3ce09f5 SS |
2441 | /* Maybe advance to the next argument. */ |
2442 | if (fpieces[fr].argclass != literal_piece) | |
2443 | ++i; | |
c906108c | 2444 | } |
c906108c SS |
2445 | } |
2446 | do_cleanups (old_cleanups); | |
2447 | } | |
c906108c | 2448 | |
f1421989 HZ |
2449 | /* Implement the "printf" command. */ |
2450 | ||
a04b0428 | 2451 | static void |
f1421989 HZ |
2452 | printf_command (char *arg, int from_tty) |
2453 | { | |
a04b0428 | 2454 | ui_printf (arg, gdb_stdout); |
50b34a18 | 2455 | gdb_flush (gdb_stdout); |
f1421989 HZ |
2456 | } |
2457 | ||
2458 | /* Implement the "eval" command. */ | |
2459 | ||
2460 | static void | |
2461 | eval_command (char *arg, int from_tty) | |
2462 | { | |
2463 | struct ui_file *ui_out = mem_fileopen (); | |
2464 | struct cleanup *cleanups = make_cleanup_ui_file_delete (ui_out); | |
2465 | char *expanded; | |
2466 | ||
a04b0428 | 2467 | ui_printf (arg, ui_out); |
f1421989 HZ |
2468 | |
2469 | expanded = ui_file_xstrdup (ui_out, NULL); | |
2470 | make_cleanup (xfree, expanded); | |
2471 | ||
2472 | execute_command (expanded, from_tty); | |
2473 | ||
2474 | do_cleanups (cleanups); | |
2475 | } | |
2476 | ||
c906108c | 2477 | void |
fba45db2 | 2478 | _initialize_printcmd (void) |
c906108c | 2479 | { |
c94fdfd0 EZ |
2480 | struct cmd_list_element *c; |
2481 | ||
c906108c SS |
2482 | current_display_number = -1; |
2483 | ||
63644780 | 2484 | observer_attach_free_objfile (clear_dangling_display_expressions); |
a3247a22 | 2485 | |
c906108c | 2486 | add_info ("address", address_info, |
1bedd215 | 2487 | _("Describe where symbol SYM is stored.")); |
c906108c | 2488 | |
1bedd215 AC |
2489 | add_info ("symbol", sym_info, _("\ |
2490 | Describe what symbol is at location ADDR.\n\ | |
2491 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2492 | |
1bedd215 AC |
2493 | add_com ("x", class_vars, x_command, _("\ |
2494 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2495 | ADDRESS is an expression for the memory address to examine.\n\ |
2496 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2497 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
6fbe845e AB |
2498 | t(binary), f(float), a(address), i(instruction), c(char), s(string)\n\ |
2499 | and z(hex, zero padded on the left).\n\ | |
1bedd215 | 2500 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ |
c906108c SS |
2501 | The specified number of objects of the specified size are printed\n\ |
2502 | according to the format.\n\n\ | |
2503 | Defaults for format and size letters are those previously used.\n\ | |
2504 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2505 | with this command or \"print\".")); |
c906108c | 2506 | |
c906108c SS |
2507 | #if 0 |
2508 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2509 | _("Print line number and file of definition of variable.")); |
c906108c | 2510 | #endif |
c5aa993b | 2511 | |
1bedd215 AC |
2512 | add_info ("display", display_info, _("\ |
2513 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2514 | |
1a966eab AC |
2515 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2516 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2517 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2518 | No argument means cancel all automatic-display expressions.\n\ | |
2519 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2520 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2521 | &cmdlist); |
c906108c | 2522 | |
1bedd215 AC |
2523 | add_com ("display", class_vars, display_command, _("\ |
2524 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2525 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2526 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2527 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2528 | and examining is done as in the \"x\" command.\n\n\ | |
2529 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2530 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2531 | |
c9174737 | 2532 | add_cmd ("display", class_vars, enable_display_command, _("\ |
1a966eab | 2533 | Enable some expressions to be displayed when program stops.\n\ |
c906108c SS |
2534 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2535 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2536 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2537 | |
1a966eab AC |
2538 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2539 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2540 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2541 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2542 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2543 | |
1a966eab AC |
2544 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2545 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2546 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2547 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2548 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2549 | |
1bedd215 AC |
2550 | add_com ("printf", class_vars, printf_command, _("\ |
2551 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2552 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2553 | |
1bedd215 AC |
2554 | add_com ("output", class_vars, output_command, _("\ |
2555 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2556 | This is useful in user-defined commands.")); | |
c906108c | 2557 | |
1bedd215 AC |
2558 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2559 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2560 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2561 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2562 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2563 | variable in the program being debugged. EXP is any valid expression.\n\ |
2564 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2565 | \n\ | |
2566 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2567 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2568 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2569 | if (dbx_commands) |
1bedd215 AC |
2570 | add_com ("assign", class_vars, set_command, _("\ |
2571 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2572 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2573 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2574 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2575 | variable in the program being debugged. EXP is any valid expression.\n\ |
2576 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2577 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2578 | You can see these environment settings with the \"show\" command.")); |
c906108c | 2579 | |
0df8b418 | 2580 | /* "call" is the same as "set", but handy for dbx users to call fns. */ |
1bedd215 AC |
2581 | c = add_com ("call", class_vars, call_command, _("\ |
2582 | Call a function in the program.\n\ | |
c906108c SS |
2583 | The argument is the function name and arguments, in the notation of the\n\ |
2584 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2585 | history, if it is not void.")); |
65d12d83 | 2586 | set_cmd_completer (c, expression_completer); |
c906108c | 2587 | |
1a966eab AC |
2588 | add_cmd ("variable", class_vars, set_command, _("\ |
2589 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2590 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2591 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2592 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2593 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2594 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2595 | &setlist); |
c906108c | 2596 | |
1bedd215 AC |
2597 | c = add_com ("print", class_vars, print_command, _("\ |
2598 | Print value of expression EXP.\n\ | |
c906108c SS |
2599 | Variables accessible are those of the lexical environment of the selected\n\ |
2600 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2601 | \n\ | |
2602 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2603 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2604 | Names starting with $ refer to registers (with the values they would have\n\ |
2605 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2606 | all registers saved by frames farther in) or else to debugger\n\ |
2607 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2608 | Use assignment expressions to give values to convenience variables.\n\ |
2609 | \n\ | |
c906108c SS |
2610 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2611 | @ is a binary operator for treating consecutive data objects\n\ | |
2612 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2613 | element is FOO, whose second element is stored in the space following\n\ | |
2614 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2615 | resides in memory.\n\ |
2616 | \n\ | |
c906108c | 2617 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2618 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2619 | set_cmd_completer (c, expression_completer); |
c906108c | 2620 | add_com_alias ("p", "print", class_vars, 1); |
e93a8774 | 2621 | add_com_alias ("inspect", "print", class_vars, 1); |
c906108c | 2622 | |
35096d9d AC |
2623 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2624 | &max_symbolic_offset, _("\ | |
2625 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
f81d1120 PA |
2626 | Show the largest offset that will be printed in <symbol+1234> form."), _("\ |
2627 | Tell GDB to only display the symbolic form of an address if the\n\ | |
2628 | offset between the closest earlier symbol and the address is less than\n\ | |
2629 | the specified maximum offset. The default is \"unlimited\", which tells GDB\n\ | |
2630 | to always print the symbolic form of an address if any symbol precedes\n\ | |
2631 | it. Zero is equivalent to \"unlimited\"."), | |
35096d9d | 2632 | NULL, |
920d2a44 | 2633 | show_max_symbolic_offset, |
35096d9d | 2634 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2635 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2636 | &print_symbol_filename, _("\ | |
2637 | Set printing of source filename and line number with <symbol>."), _("\ | |
2638 | Show printing of source filename and line number with <symbol>."), NULL, | |
2639 | NULL, | |
920d2a44 | 2640 | show_print_symbol_filename, |
5bf193a2 | 2641 | &setprintlist, &showprintlist); |
f1421989 HZ |
2642 | |
2643 | add_com ("eval", no_class, eval_command, _("\ | |
2644 | Convert \"printf format string\", arg1, arg2, arg3, ..., argn to\n\ | |
2645 | a command line, and call it.")); | |
c906108c | 2646 | } |