Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
9b254dd1 | 4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
0fb0cc75 | 5 | 2008, 2009 Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include "frame.h" | |
25 | #include "symtab.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "value.h" | |
28 | #include "language.h" | |
29 | #include "expression.h" | |
30 | #include "gdbcore.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "target.h" | |
33 | #include "breakpoint.h" | |
34 | #include "demangle.h" | |
35 | #include "valprint.h" | |
36 | #include "annotate.h" | |
c5aa993b JM |
37 | #include "symfile.h" /* for overlay functions */ |
38 | #include "objfiles.h" /* ditto */ | |
c94fdfd0 | 39 | #include "completer.h" /* for completion functions */ |
8b93c638 | 40 | #include "ui-out.h" |
261397f8 | 41 | #include "gdb_assert.h" |
fe898f56 | 42 | #include "block.h" |
92bf2b80 | 43 | #include "disasm.h" |
1a619819 | 44 | #include "dfp.h" |
79a45b7d | 45 | #include "valprint.h" |
a3247a22 PP |
46 | #include "exceptions.h" |
47 | #include "observer.h" | |
48 | #include "solist.h" | |
49 | #include "solib.h" | |
50 | #include "parser-defs.h" | |
6c7a06a3 | 51 | #include "charset.h" |
c906108c | 52 | |
6a83354a AC |
53 | #ifdef TUI |
54 | #include "tui/tui.h" /* For tui_active et.al. */ | |
55 | #endif | |
56 | ||
06be140c | 57 | #if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG) |
09d71d23 AS |
58 | # define USE_PRINTF_I64 1 |
59 | # define PRINTF_HAS_LONG_LONG | |
60 | #else | |
61 | # define USE_PRINTF_I64 0 | |
62 | #endif | |
63 | ||
c906108c | 64 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ |
c906108c SS |
65 | |
66 | struct format_data | |
c5aa993b JM |
67 | { |
68 | int count; | |
69 | char format; | |
70 | char size; | |
a6bac58e TT |
71 | |
72 | /* True if the value should be printed raw -- that is, bypassing | |
73 | python-based formatters. */ | |
74 | unsigned char raw; | |
c5aa993b | 75 | }; |
c906108c SS |
76 | |
77 | /* Last specified output format. */ | |
78 | ||
a6bac58e | 79 | static char last_format = 0; |
c906108c SS |
80 | |
81 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
82 | ||
83 | static char last_size = 'w'; | |
84 | ||
85 | /* Default address to examine next. */ | |
86 | ||
87 | static CORE_ADDR next_address; | |
88 | ||
a4642986 MR |
89 | /* Number of delay instructions following current disassembled insn. */ |
90 | ||
91 | static int branch_delay_insns; | |
92 | ||
c906108c SS |
93 | /* Last address examined. */ |
94 | ||
95 | static CORE_ADDR last_examine_address; | |
96 | ||
97 | /* Contents of last address examined. | |
98 | This is not valid past the end of the `x' command! */ | |
99 | ||
3d6d86c6 | 100 | static struct value *last_examine_value; |
c906108c SS |
101 | |
102 | /* Largest offset between a symbolic value and an address, that will be | |
103 | printed as `0x1234 <symbol+offset>'. */ | |
104 | ||
105 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
106 | static void |
107 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
108 | struct cmd_list_element *c, const char *value) | |
109 | { | |
110 | fprintf_filtered (file, _("\ | |
111 | The largest offset that will be printed in <symbol+1234> form is %s.\n"), | |
112 | value); | |
113 | } | |
c906108c SS |
114 | |
115 | /* Append the source filename and linenumber of the symbol when | |
116 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
117 | static int print_symbol_filename = 0; | |
920d2a44 AC |
118 | static void |
119 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
120 | struct cmd_list_element *c, const char *value) | |
121 | { | |
122 | fprintf_filtered (file, _("\ | |
123 | Printing of source filename and line number with <symbol> is %s.\n"), | |
124 | value); | |
125 | } | |
c906108c SS |
126 | |
127 | /* Number of auto-display expression currently being displayed. | |
128 | So that we can disable it if we get an error or a signal within it. | |
129 | -1 when not doing one. */ | |
130 | ||
131 | int current_display_number; | |
132 | ||
c906108c | 133 | struct display |
c5aa993b JM |
134 | { |
135 | /* Chain link to next auto-display item. */ | |
136 | struct display *next; | |
fa8a61dc TT |
137 | /* The expression as the user typed it. */ |
138 | char *exp_string; | |
c5aa993b JM |
139 | /* Expression to be evaluated and displayed. */ |
140 | struct expression *exp; | |
141 | /* Item number of this auto-display item. */ | |
142 | int number; | |
143 | /* Display format specified. */ | |
144 | struct format_data format; | |
145 | /* Innermost block required by this expression when evaluated */ | |
146 | struct block *block; | |
147 | /* Status of this display (enabled or disabled) */ | |
b5de0fa7 | 148 | int enabled_p; |
c5aa993b | 149 | }; |
c906108c SS |
150 | |
151 | /* Chain of expressions whose values should be displayed | |
152 | automatically each time the program stops. */ | |
153 | ||
154 | static struct display *display_chain; | |
155 | ||
156 | static int display_number; | |
157 | ||
158 | /* Prototypes for exported functions. */ | |
159 | ||
a14ed312 | 160 | void output_command (char *, int); |
c906108c | 161 | |
a14ed312 | 162 | void _initialize_printcmd (void); |
c906108c SS |
163 | |
164 | /* Prototypes for local functions. */ | |
165 | ||
a14ed312 | 166 | static void do_one_display (struct display *); |
c906108c | 167 | \f |
c5aa993b | 168 | |
c906108c SS |
169 | /* Decode a format specification. *STRING_PTR should point to it. |
170 | OFORMAT and OSIZE are used as defaults for the format and size | |
171 | if none are given in the format specification. | |
172 | If OSIZE is zero, then the size field of the returned value | |
173 | should be set only if a size is explicitly specified by the | |
174 | user. | |
175 | The structure returned describes all the data | |
176 | found in the specification. In addition, *STRING_PTR is advanced | |
177 | past the specification and past all whitespace following it. */ | |
178 | ||
179 | static struct format_data | |
fba45db2 | 180 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
181 | { |
182 | struct format_data val; | |
52f0bd74 | 183 | char *p = *string_ptr; |
c906108c SS |
184 | |
185 | val.format = '?'; | |
186 | val.size = '?'; | |
187 | val.count = 1; | |
a6bac58e | 188 | val.raw = 0; |
c906108c SS |
189 | |
190 | if (*p >= '0' && *p <= '9') | |
191 | val.count = atoi (p); | |
c5aa993b JM |
192 | while (*p >= '0' && *p <= '9') |
193 | p++; | |
c906108c SS |
194 | |
195 | /* Now process size or format letters that follow. */ | |
196 | ||
197 | while (1) | |
198 | { | |
199 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
200 | val.size = *p++; | |
a6bac58e TT |
201 | else if (*p == 'r') |
202 | { | |
203 | val.raw = 1; | |
204 | p++; | |
205 | } | |
c906108c SS |
206 | else if (*p >= 'a' && *p <= 'z') |
207 | val.format = *p++; | |
208 | else | |
209 | break; | |
210 | } | |
211 | ||
c5aa993b JM |
212 | while (*p == ' ' || *p == '\t') |
213 | p++; | |
c906108c SS |
214 | *string_ptr = p; |
215 | ||
216 | /* Set defaults for format and size if not specified. */ | |
217 | if (val.format == '?') | |
218 | { | |
219 | if (val.size == '?') | |
220 | { | |
221 | /* Neither has been specified. */ | |
222 | val.format = oformat; | |
223 | val.size = osize; | |
224 | } | |
225 | else | |
226 | /* If a size is specified, any format makes a reasonable | |
227 | default except 'i'. */ | |
228 | val.format = oformat == 'i' ? 'x' : oformat; | |
229 | } | |
230 | else if (val.size == '?') | |
231 | switch (val.format) | |
232 | { | |
233 | case 'a': | |
234 | case 's': | |
235 | /* Pick the appropriate size for an address. */ | |
819844ad | 236 | if (gdbarch_ptr_bit (current_gdbarch) == 64) |
c906108c | 237 | val.size = osize ? 'g' : osize; |
819844ad | 238 | else if (gdbarch_ptr_bit (current_gdbarch) == 32) |
c906108c | 239 | val.size = osize ? 'w' : osize; |
819844ad | 240 | else if (gdbarch_ptr_bit (current_gdbarch) == 16) |
c906108c SS |
241 | val.size = osize ? 'h' : osize; |
242 | else | |
819844ad | 243 | /* Bad value for gdbarch_ptr_bit. */ |
675dcf4f MK |
244 | internal_error (__FILE__, __LINE__, |
245 | _("failed internal consistency check")); | |
c906108c SS |
246 | break; |
247 | case 'f': | |
248 | /* Floating point has to be word or giantword. */ | |
249 | if (osize == 'w' || osize == 'g') | |
250 | val.size = osize; | |
251 | else | |
252 | /* Default it to giantword if the last used size is not | |
253 | appropriate. */ | |
254 | val.size = osize ? 'g' : osize; | |
255 | break; | |
256 | case 'c': | |
257 | /* Characters default to one byte. */ | |
258 | val.size = osize ? 'b' : osize; | |
259 | break; | |
260 | default: | |
261 | /* The default is the size most recently specified. */ | |
262 | val.size = osize; | |
263 | } | |
264 | ||
265 | return val; | |
266 | } | |
267 | \f | |
79a45b7d | 268 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 269 | Do not end with a newline. |
c906108c | 270 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
271 | This is used to pad hex numbers so they line up. SIZE is 0 |
272 | for print / output and set for examine. */ | |
c906108c SS |
273 | |
274 | static void | |
79a45b7d TT |
275 | print_formatted (struct value *val, int size, |
276 | const struct value_print_options *options, | |
fba45db2 | 277 | struct ui_file *stream) |
c906108c | 278 | { |
df407dfe | 279 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
280 | int len = TYPE_LENGTH (type); |
281 | ||
282 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 283 | next_address = value_address (val) + len; |
c906108c | 284 | |
ea37ba09 | 285 | if (size) |
c906108c | 286 | { |
79a45b7d | 287 | switch (options->format) |
ea37ba09 DJ |
288 | { |
289 | case 's': | |
6c7a06a3 TT |
290 | { |
291 | struct type *elttype = value_type (val); | |
42ae5230 | 292 | next_address = (value_address (val) |
6c7a06a3 | 293 | + val_print_string (elttype, |
42ae5230 | 294 | value_address (val), -1, |
6c7a06a3 TT |
295 | stream, options)); |
296 | } | |
ea37ba09 | 297 | return; |
c906108c | 298 | |
ea37ba09 DJ |
299 | case 'i': |
300 | /* We often wrap here if there are long symbolic names. */ | |
301 | wrap_here (" "); | |
42ae5230 TT |
302 | next_address = (value_address (val) |
303 | + gdb_print_insn (value_address (val), stream, | |
ea37ba09 DJ |
304 | &branch_delay_insns)); |
305 | return; | |
306 | } | |
c906108c | 307 | } |
ea37ba09 | 308 | |
79a45b7d | 309 | if (options->format == 0 || options->format == 's' |
4e885b20 | 310 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
311 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
312 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
313 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
314 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
315 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 316 | value_print (val, stream, options); |
ea37ba09 DJ |
317 | else |
318 | /* User specified format, so don't look to the the type to | |
319 | tell us what to do. */ | |
320 | print_scalar_formatted (value_contents (val), type, | |
79a45b7d | 321 | options, size, stream); |
c906108c SS |
322 | } |
323 | ||
b806fb9a UW |
324 | /* Return builtin floating point type of same length as TYPE. |
325 | If no such type is found, return TYPE itself. */ | |
326 | static struct type * | |
327 | float_type_from_length (struct gdbarch *gdbarch, struct type *type) | |
328 | { | |
329 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
330 | unsigned int len = TYPE_LENGTH (type); | |
331 | ||
332 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
333 | type = builtin->builtin_float; | |
334 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
335 | type = builtin->builtin_double; | |
336 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
337 | type = builtin->builtin_long_double; | |
338 | ||
339 | return type; | |
340 | } | |
341 | ||
c906108c | 342 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
79a45b7d TT |
343 | according to OPTIONS and SIZE on STREAM. |
344 | Formats s and i are not supported at this level. | |
c906108c SS |
345 | |
346 | This is how the elements of an array or structure are printed | |
347 | with a format. */ | |
348 | ||
349 | void | |
366b1cbf | 350 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
351 | const struct value_print_options *options, |
352 | int size, struct ui_file *stream) | |
c906108c | 353 | { |
81cb7cc9 | 354 | LONGEST val_long = 0; |
c906108c | 355 | unsigned int len = TYPE_LENGTH (type); |
d44e8473 | 356 | enum bfd_endian byte_order = gdbarch_byte_order (current_gdbarch); |
c906108c | 357 | |
ea37ba09 DJ |
358 | /* If we get here with a string format, try again without it. Go |
359 | all the way back to the language printers, which may call us | |
360 | again. */ | |
79a45b7d | 361 | if (options->format == 's') |
ea37ba09 | 362 | { |
79a45b7d TT |
363 | struct value_print_options opts = *options; |
364 | opts.format = 0; | |
365 | opts.deref_ref = 0; | |
366 | val_print (type, valaddr, 0, 0, stream, 0, &opts, | |
d8ca156b | 367 | current_language); |
ea37ba09 DJ |
368 | return; |
369 | } | |
370 | ||
6b9acc27 JJ |
371 | if (len > sizeof(LONGEST) && |
372 | (TYPE_CODE (type) == TYPE_CODE_INT | |
373 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
374 | { | |
79a45b7d | 375 | switch (options->format) |
6b9acc27 JJ |
376 | { |
377 | case 'o': | |
d44e8473 | 378 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
379 | return; |
380 | case 'u': | |
381 | case 'd': | |
d44e8473 | 382 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
383 | return; |
384 | case 't': | |
d44e8473 | 385 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
386 | return; |
387 | case 'x': | |
d44e8473 | 388 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
389 | return; |
390 | case 'c': | |
6c7a06a3 | 391 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
392 | return; |
393 | default: | |
394 | break; | |
395 | }; | |
396 | } | |
397 | ||
79a45b7d | 398 | if (options->format != 'f') |
c906108c SS |
399 | val_long = unpack_long (type, valaddr); |
400 | ||
ef166cf4 | 401 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 402 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 403 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 404 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
17a912b6 | 405 | len = gdbarch_addr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 406 | |
c906108c SS |
407 | /* If we are printing it as unsigned, truncate it in case it is actually |
408 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
409 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 410 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
411 | { |
412 | if (len < sizeof (LONGEST)) | |
413 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
414 | } | |
415 | ||
79a45b7d | 416 | switch (options->format) |
c906108c SS |
417 | { |
418 | case 'x': | |
419 | if (!size) | |
420 | { | |
675dcf4f | 421 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
422 | print_longest (stream, 'x', 1, val_long); |
423 | } | |
424 | else | |
425 | switch (size) | |
426 | { | |
427 | case 'b': | |
428 | case 'h': | |
429 | case 'w': | |
430 | case 'g': | |
431 | print_longest (stream, size, 1, val_long); | |
432 | break; | |
433 | default: | |
8a3fe4f8 | 434 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
435 | } |
436 | break; | |
437 | ||
438 | case 'd': | |
439 | print_longest (stream, 'd', 1, val_long); | |
440 | break; | |
441 | ||
442 | case 'u': | |
443 | print_longest (stream, 'u', 0, val_long); | |
444 | break; | |
445 | ||
446 | case 'o': | |
447 | if (val_long) | |
448 | print_longest (stream, 'o', 1, val_long); | |
449 | else | |
450 | fprintf_filtered (stream, "0"); | |
451 | break; | |
452 | ||
453 | case 'a': | |
593de6a6 | 454 | { |
593de6a6 | 455 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
593de6a6 PS |
456 | print_address (addr, stream); |
457 | } | |
c906108c SS |
458 | break; |
459 | ||
460 | case 'c': | |
79a45b7d TT |
461 | { |
462 | struct value_print_options opts = *options; | |
463 | opts.format = 0; | |
464 | if (TYPE_UNSIGNED (type)) | |
465 | value_print (value_from_longest (builtin_type_true_unsigned_char, | |
466 | val_long), | |
467 | stream, &opts); | |
468 | else | |
469 | value_print (value_from_longest (builtin_type_true_char, val_long), | |
470 | stream, &opts); | |
471 | } | |
c906108c SS |
472 | break; |
473 | ||
474 | case 'f': | |
b806fb9a | 475 | type = float_type_from_length (current_gdbarch, type); |
c906108c SS |
476 | print_floating (valaddr, type, stream); |
477 | break; | |
478 | ||
479 | case 0: | |
675dcf4f MK |
480 | internal_error (__FILE__, __LINE__, |
481 | _("failed internal consistency check")); | |
c906108c SS |
482 | |
483 | case 't': | |
484 | /* Binary; 't' stands for "two". */ | |
485 | { | |
c5aa993b JM |
486 | char bits[8 * (sizeof val_long) + 1]; |
487 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
488 | char *cp = bits; |
489 | int width; | |
490 | ||
c5aa993b JM |
491 | if (!size) |
492 | width = 8 * (sizeof val_long); | |
493 | else | |
494 | switch (size) | |
c906108c SS |
495 | { |
496 | case 'b': | |
497 | width = 8; | |
498 | break; | |
499 | case 'h': | |
500 | width = 16; | |
501 | break; | |
502 | case 'w': | |
503 | width = 32; | |
504 | break; | |
505 | case 'g': | |
506 | width = 64; | |
507 | break; | |
508 | default: | |
8a3fe4f8 | 509 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
510 | } |
511 | ||
c5aa993b JM |
512 | bits[width] = '\0'; |
513 | while (width-- > 0) | |
514 | { | |
515 | bits[width] = (val_long & 1) ? '1' : '0'; | |
516 | val_long >>= 1; | |
517 | } | |
c906108c SS |
518 | if (!size) |
519 | { | |
520 | while (*cp && *cp == '0') | |
521 | cp++; | |
522 | if (*cp == '\0') | |
523 | cp--; | |
524 | } | |
bb599908 | 525 | strcpy (buf, cp); |
306d9ac5 | 526 | fputs_filtered (buf, stream); |
c906108c SS |
527 | } |
528 | break; | |
529 | ||
530 | default: | |
79a45b7d | 531 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
532 | } |
533 | } | |
534 | ||
535 | /* Specify default address for `x' command. | |
675dcf4f | 536 | The `info lines' command uses this. */ |
c906108c SS |
537 | |
538 | void | |
8b9b9e1a | 539 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 540 | { |
8b9b9e1a UW |
541 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
542 | ||
c906108c SS |
543 | next_address = addr; |
544 | ||
545 | /* Make address available to the user as $_. */ | |
546 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 547 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
548 | } |
549 | ||
550 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
551 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
552 | Optionally also print source file and line number, if available. | |
553 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
554 | or to interpret it as a possible C++ name and convert it back to source | |
555 | form. However note that DO_DEMANGLE can be overridden by the specific | |
556 | settings of the demangle and asm_demangle variables. */ | |
557 | ||
558 | void | |
675dcf4f MK |
559 | print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, |
560 | int do_demangle, char *leadin) | |
dfcd3bfb JM |
561 | { |
562 | char *name = NULL; | |
563 | char *filename = NULL; | |
564 | int unmapped = 0; | |
565 | int offset = 0; | |
566 | int line = 0; | |
567 | ||
675dcf4f | 568 | /* Throw away both name and filename. */ |
2f9429ae AC |
569 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
570 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 571 | |
675dcf4f MK |
572 | if (build_address_symbolic (addr, do_demangle, &name, &offset, |
573 | &filename, &line, &unmapped)) | |
2f9429ae AC |
574 | { |
575 | do_cleanups (cleanup_chain); | |
576 | return; | |
577 | } | |
dfcd3bfb JM |
578 | |
579 | fputs_filtered (leadin, stream); | |
580 | if (unmapped) | |
581 | fputs_filtered ("<*", stream); | |
582 | else | |
583 | fputs_filtered ("<", stream); | |
584 | fputs_filtered (name, stream); | |
585 | if (offset != 0) | |
586 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
587 | ||
588 | /* Append source filename and line number if desired. Give specific | |
589 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
590 | if (print_symbol_filename && filename != NULL) | |
591 | { | |
592 | if (line != -1) | |
593 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
594 | else | |
595 | fprintf_filtered (stream, " in %s", filename); | |
596 | } | |
597 | if (unmapped) | |
598 | fputs_filtered ("*>", stream); | |
599 | else | |
600 | fputs_filtered (">", stream); | |
601 | ||
602 | do_cleanups (cleanup_chain); | |
603 | } | |
604 | ||
605 | /* Given an address ADDR return all the elements needed to print the | |
606 | address in a symbolic form. NAME can be mangled or not depending | |
607 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
608 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
609 | success, when all the info in the OUT paramters is valid. Return 1 | |
610 | otherwise. */ | |
611 | int | |
612 | build_address_symbolic (CORE_ADDR addr, /* IN */ | |
613 | int do_demangle, /* IN */ | |
614 | char **name, /* OUT */ | |
615 | int *offset, /* OUT */ | |
616 | char **filename, /* OUT */ | |
617 | int *line, /* OUT */ | |
618 | int *unmapped) /* OUT */ | |
c906108c SS |
619 | { |
620 | struct minimal_symbol *msymbol; | |
621 | struct symbol *symbol; | |
c906108c | 622 | CORE_ADDR name_location = 0; |
714835d5 | 623 | struct obj_section *section = NULL; |
dfcd3bfb JM |
624 | char *name_temp = ""; |
625 | ||
89c83b10 | 626 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 627 | *unmapped = 0; |
c906108c | 628 | |
dfcd3bfb | 629 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 630 | mapped. */ |
c906108c SS |
631 | if (overlay_debugging) |
632 | { | |
633 | section = find_pc_overlay (addr); | |
634 | if (pc_in_unmapped_range (addr, section)) | |
635 | { | |
dfcd3bfb | 636 | *unmapped = 1; |
c906108c SS |
637 | addr = overlay_mapped_address (addr, section); |
638 | } | |
639 | } | |
640 | ||
c906108c SS |
641 | /* First try to find the address in the symbol table, then |
642 | in the minsyms. Take the closest one. */ | |
643 | ||
644 | /* This is defective in the sense that it only finds text symbols. So | |
645 | really this is kind of pointless--we should make sure that the | |
646 | minimal symbols have everything we need (by changing that we could | |
647 | save some memory, but for many debug format--ELF/DWARF or | |
648 | anything/stabs--it would be inconvenient to eliminate those minimal | |
649 | symbols anyway). */ | |
650 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
651 | symbol = find_pc_sect_function (addr, section); | |
652 | ||
653 | if (symbol) | |
654 | { | |
655 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
406fc7fb | 656 | if (do_demangle || asm_demangle) |
de5ad195 | 657 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 658 | else |
3567439c | 659 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
660 | } |
661 | ||
662 | if (msymbol != NULL) | |
663 | { | |
664 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
665 | { | |
666 | /* The msymbol is closer to the address than the symbol; | |
667 | use the msymbol instead. */ | |
668 | symbol = 0; | |
c906108c | 669 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 670 | if (do_demangle || asm_demangle) |
de5ad195 | 671 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 672 | else |
3567439c | 673 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
674 | } |
675 | } | |
676 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 677 | return 1; |
c906108c | 678 | |
c906108c SS |
679 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
680 | ||
681 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
682 | CORE_ADDR. But when we detect unsigned wraparound in the | |
683 | CORE_ADDR math, we ignore this test and print the offset, | |
684 | because addr+max_symbolic_offset has wrapped through the end | |
685 | of the address space back to the beginning, giving bogus comparison. */ | |
686 | if (addr > name_location + max_symbolic_offset | |
687 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 688 | return 1; |
c906108c | 689 | |
dfcd3bfb JM |
690 | *offset = addr - name_location; |
691 | ||
692 | *name = xstrdup (name_temp); | |
c906108c | 693 | |
c906108c SS |
694 | if (print_symbol_filename) |
695 | { | |
696 | struct symtab_and_line sal; | |
697 | ||
698 | sal = find_pc_sect_line (addr, section, 0); | |
699 | ||
700 | if (sal.symtab) | |
dfcd3bfb JM |
701 | { |
702 | *filename = xstrdup (sal.symtab->filename); | |
703 | *line = sal.line; | |
704 | } | |
c906108c | 705 | } |
dfcd3bfb | 706 | return 0; |
c906108c SS |
707 | } |
708 | ||
c906108c SS |
709 | |
710 | /* Print address ADDR symbolically on STREAM. | |
711 | First print it as a number. Then perhaps print | |
712 | <SYMBOL + OFFSET> after the number. */ | |
713 | ||
714 | void | |
fba45db2 | 715 | print_address (CORE_ADDR addr, struct ui_file *stream) |
c906108c | 716 | { |
ed49a04f | 717 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
718 | print_address_symbolic (addr, stream, asm_demangle, " "); |
719 | } | |
720 | ||
721 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
722 | controls whether to print the symbolic name "raw" or demangled. | |
723 | Global setting "addressprint" controls whether to print hex address | |
724 | or not. */ | |
725 | ||
726 | void | |
675dcf4f MK |
727 | print_address_demangle (CORE_ADDR addr, struct ui_file *stream, |
728 | int do_demangle) | |
c906108c | 729 | { |
79a45b7d TT |
730 | struct value_print_options opts; |
731 | get_user_print_options (&opts); | |
c906108c SS |
732 | if (addr == 0) |
733 | { | |
734 | fprintf_filtered (stream, "0"); | |
735 | } | |
79a45b7d | 736 | else if (opts.addressprint) |
c906108c | 737 | { |
ed49a04f | 738 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
739 | print_address_symbolic (addr, stream, do_demangle, " "); |
740 | } | |
741 | else | |
742 | { | |
743 | print_address_symbolic (addr, stream, do_demangle, ""); | |
744 | } | |
745 | } | |
746 | \f | |
747 | ||
748 | /* These are the types that $__ will get after an examine command of one | |
749 | of these sizes. */ | |
750 | ||
751 | static struct type *examine_i_type; | |
752 | ||
753 | static struct type *examine_b_type; | |
754 | static struct type *examine_h_type; | |
755 | static struct type *examine_w_type; | |
756 | static struct type *examine_g_type; | |
757 | ||
758 | /* Examine data at address ADDR in format FMT. | |
759 | Fetch it from memory and print on gdb_stdout. */ | |
760 | ||
761 | static void | |
00a4c844 | 762 | do_examine (struct format_data fmt, CORE_ADDR addr) |
c906108c | 763 | { |
52f0bd74 AC |
764 | char format = 0; |
765 | char size; | |
766 | int count = 1; | |
c906108c | 767 | struct type *val_type = NULL; |
52f0bd74 AC |
768 | int i; |
769 | int maxelts; | |
79a45b7d | 770 | struct value_print_options opts; |
c906108c SS |
771 | |
772 | format = fmt.format; | |
773 | size = fmt.size; | |
774 | count = fmt.count; | |
775 | next_address = addr; | |
c906108c SS |
776 | |
777 | /* String or instruction format implies fetch single bytes | |
778 | regardless of the specified size. */ | |
779 | if (format == 's' || format == 'i') | |
780 | size = 'b'; | |
781 | ||
782 | if (format == 'i') | |
783 | val_type = examine_i_type; | |
784 | else if (size == 'b') | |
785 | val_type = examine_b_type; | |
786 | else if (size == 'h') | |
787 | val_type = examine_h_type; | |
788 | else if (size == 'w') | |
789 | val_type = examine_w_type; | |
790 | else if (size == 'g') | |
791 | val_type = examine_g_type; | |
792 | ||
793 | maxelts = 8; | |
794 | if (size == 'w') | |
795 | maxelts = 4; | |
796 | if (size == 'g') | |
797 | maxelts = 2; | |
798 | if (format == 's' || format == 'i') | |
799 | maxelts = 1; | |
800 | ||
79a45b7d TT |
801 | get_formatted_print_options (&opts, format); |
802 | ||
c906108c SS |
803 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
804 | with the address of the next one at the start of each line. */ | |
805 | ||
806 | while (count > 0) | |
807 | { | |
808 | QUIT; | |
809 | print_address (next_address, gdb_stdout); | |
810 | printf_filtered (":"); | |
811 | for (i = maxelts; | |
812 | i > 0 && count > 0; | |
813 | i--, count--) | |
814 | { | |
815 | printf_filtered ("\t"); | |
816 | /* Note that print_formatted sets next_address for the next | |
817 | object. */ | |
818 | last_examine_address = next_address; | |
819 | ||
820 | if (last_examine_value) | |
821 | value_free (last_examine_value); | |
822 | ||
823 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
824 | Instead, to avoid the possibility of a fetched value not |
825 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
826 | uses it. When examining an instruction stream, the |
827 | disassembler will perform its own memory fetch using just | |
828 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
829 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
830 | is left with the byte sequence from the last complete | |
831 | instruction fetched from memory? */ | |
00a4c844 | 832 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
833 | |
834 | if (last_examine_value) | |
835 | release_value (last_examine_value); | |
836 | ||
79a45b7d | 837 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
838 | |
839 | /* Display any branch delay slots following the final insn. */ | |
840 | if (format == 'i' && count == 1) | |
841 | count += branch_delay_insns; | |
c906108c SS |
842 | } |
843 | printf_filtered ("\n"); | |
844 | gdb_flush (gdb_stdout); | |
845 | } | |
846 | } | |
847 | \f | |
848 | static void | |
fba45db2 | 849 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
850 | { |
851 | if (fmt.size != 0) | |
8a3fe4f8 | 852 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 853 | if (fmt.count != 1) |
8a3fe4f8 | 854 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 855 | cmdname); |
ea37ba09 | 856 | if (fmt.format == 'i') |
8a3fe4f8 | 857 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
858 | fmt.format, cmdname); |
859 | } | |
860 | ||
675dcf4f | 861 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 862 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 863 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
864 | |
865 | static void | |
fba45db2 | 866 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
867 | { |
868 | struct expression *expr; | |
52f0bd74 AC |
869 | struct cleanup *old_chain = 0; |
870 | char format = 0; | |
3d6d86c6 | 871 | struct value *val; |
c906108c SS |
872 | struct format_data fmt; |
873 | int cleanup = 0; | |
874 | ||
c906108c SS |
875 | if (exp && *exp == '/') |
876 | { | |
877 | exp++; | |
878 | fmt = decode_format (&exp, last_format, 0); | |
879 | validate_format (fmt, "print"); | |
880 | last_format = format = fmt.format; | |
881 | } | |
882 | else | |
883 | { | |
884 | fmt.count = 1; | |
885 | fmt.format = 0; | |
886 | fmt.size = 0; | |
a6bac58e | 887 | fmt.raw = 0; |
c906108c SS |
888 | } |
889 | ||
890 | if (exp && *exp) | |
891 | { | |
c906108c SS |
892 | struct type *type; |
893 | expr = parse_expression (exp); | |
c13c43fd | 894 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
895 | cleanup = 1; |
896 | val = evaluate_expression (expr); | |
c906108c SS |
897 | } |
898 | else | |
899 | val = access_value_history (0); | |
900 | ||
df407dfe AC |
901 | if (voidprint || (val && value_type (val) && |
902 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 903 | { |
79a45b7d | 904 | struct value_print_options opts; |
c906108c SS |
905 | int histindex = record_latest_value (val); |
906 | ||
907 | if (histindex >= 0) | |
df407dfe | 908 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 909 | else |
df407dfe | 910 | annotate_value_begin (value_type (val)); |
c906108c SS |
911 | |
912 | if (inspect) | |
675dcf4f MK |
913 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
914 | exp, histindex); | |
c5aa993b JM |
915 | else if (histindex >= 0) |
916 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
917 | |
918 | if (histindex >= 0) | |
919 | annotate_value_history_value (); | |
920 | ||
79a45b7d TT |
921 | get_formatted_print_options (&opts, format); |
922 | opts.inspect_it = inspect; | |
a6bac58e | 923 | opts.raw = fmt.raw; |
79a45b7d TT |
924 | |
925 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
926 | printf_filtered ("\n"); |
927 | ||
928 | if (histindex >= 0) | |
929 | annotate_value_history_end (); | |
930 | else | |
931 | annotate_value_end (); | |
932 | ||
933 | if (inspect) | |
c5aa993b | 934 | printf_unfiltered ("\") )\030"); |
c906108c SS |
935 | } |
936 | ||
937 | if (cleanup) | |
938 | do_cleanups (old_chain); | |
c906108c SS |
939 | } |
940 | ||
c906108c | 941 | static void |
fba45db2 | 942 | print_command (char *exp, int from_tty) |
c906108c SS |
943 | { |
944 | print_command_1 (exp, 0, 1); | |
945 | } | |
946 | ||
675dcf4f | 947 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 948 | static void |
fba45db2 | 949 | inspect_command (char *exp, int from_tty) |
c906108c SS |
950 | { |
951 | extern int epoch_interface; | |
952 | ||
953 | print_command_1 (exp, epoch_interface, 1); | |
954 | } | |
955 | ||
675dcf4f | 956 | /* Same as print, except it doesn't print void results. */ |
c906108c | 957 | static void |
fba45db2 | 958 | call_command (char *exp, int from_tty) |
c906108c SS |
959 | { |
960 | print_command_1 (exp, 0, 0); | |
961 | } | |
962 | ||
c906108c | 963 | void |
fba45db2 | 964 | output_command (char *exp, int from_tty) |
c906108c SS |
965 | { |
966 | struct expression *expr; | |
52f0bd74 AC |
967 | struct cleanup *old_chain; |
968 | char format = 0; | |
3d6d86c6 | 969 | struct value *val; |
c906108c | 970 | struct format_data fmt; |
79a45b7d | 971 | struct value_print_options opts; |
c906108c | 972 | |
777ea8f1 | 973 | fmt.size = 0; |
a6bac58e | 974 | fmt.raw = 0; |
777ea8f1 | 975 | |
c906108c SS |
976 | if (exp && *exp == '/') |
977 | { | |
978 | exp++; | |
979 | fmt = decode_format (&exp, 0, 0); | |
980 | validate_format (fmt, "output"); | |
981 | format = fmt.format; | |
982 | } | |
983 | ||
984 | expr = parse_expression (exp); | |
c13c43fd | 985 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
986 | |
987 | val = evaluate_expression (expr); | |
988 | ||
df407dfe | 989 | annotate_value_begin (value_type (val)); |
c906108c | 990 | |
79a45b7d | 991 | get_formatted_print_options (&opts, format); |
a6bac58e | 992 | opts.raw = fmt.raw; |
79a45b7d | 993 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
994 | |
995 | annotate_value_end (); | |
996 | ||
2acceee2 JM |
997 | wrap_here (""); |
998 | gdb_flush (gdb_stdout); | |
999 | ||
c906108c SS |
1000 | do_cleanups (old_chain); |
1001 | } | |
1002 | ||
c906108c | 1003 | static void |
fba45db2 | 1004 | set_command (char *exp, int from_tty) |
c906108c SS |
1005 | { |
1006 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1007 | struct cleanup *old_chain = |
c13c43fd | 1008 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
1009 | evaluate_expression (expr); |
1010 | do_cleanups (old_chain); | |
1011 | } | |
1012 | ||
c906108c | 1013 | static void |
fba45db2 | 1014 | sym_info (char *arg, int from_tty) |
c906108c SS |
1015 | { |
1016 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1017 | struct objfile *objfile; |
1018 | struct obj_section *osect; | |
c5aa993b JM |
1019 | CORE_ADDR addr, sect_addr; |
1020 | int matches = 0; | |
1021 | unsigned int offset; | |
c906108c SS |
1022 | |
1023 | if (!arg) | |
e2e0b3e5 | 1024 | error_no_arg (_("address")); |
c906108c SS |
1025 | |
1026 | addr = parse_and_eval_address (arg); | |
1027 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1028 | { |
94277a38 DJ |
1029 | /* Only process each object file once, even if there's a separate |
1030 | debug file. */ | |
1031 | if (objfile->separate_debug_objfile_backlink) | |
1032 | continue; | |
1033 | ||
714835d5 | 1034 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1035 | |
f1f6aadf PA |
1036 | if (obj_section_addr (osect) <= sect_addr |
1037 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1038 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1039 | { |
c14c28ba | 1040 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1041 | char *loc_string; |
1042 | struct cleanup *old_chain; | |
c14c28ba | 1043 | |
c5aa993b JM |
1044 | matches = 1; |
1045 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1046 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1047 | sec_name = osect->the_bfd_section->name; | |
1048 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1049 | ||
e2fd701e DE |
1050 | /* Don't print the offset if it is zero. |
1051 | We assume there's no need to handle i18n of "sym + offset". */ | |
1052 | if (offset) | |
549ba0f8 | 1053 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1054 | else |
549ba0f8 | 1055 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1056 | |
1057 | /* Use a cleanup to free loc_string in case the user quits | |
1058 | a pagination request inside printf_filtered. */ | |
1059 | old_chain = make_cleanup (xfree, loc_string); | |
1060 | ||
c14c28ba PP |
1061 | gdb_assert (osect->objfile && osect->objfile->name); |
1062 | obj_name = osect->objfile->name; | |
1063 | ||
1064 | if (MULTI_OBJFILE_P ()) | |
1065 | if (pc_in_unmapped_range (addr, osect)) | |
1066 | if (section_is_overlay (osect)) | |
e2fd701e | 1067 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1068 | "%s overlay section %s of %s\n"), |
e2fd701e | 1069 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1070 | else |
e2fd701e | 1071 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1072 | "section %s of %s\n"), |
e2fd701e | 1073 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1074 | else |
1075 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1076 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1077 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1078 | else |
e2fd701e DE |
1079 | printf_filtered (_("%s in section %s of %s\n"), |
1080 | loc_string, sec_name, obj_name); | |
c5aa993b | 1081 | else |
c14c28ba PP |
1082 | if (pc_in_unmapped_range (addr, osect)) |
1083 | if (section_is_overlay (osect)) | |
e2fd701e | 1084 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1085 | "section %s\n"), |
e2fd701e | 1086 | loc_string, mapped, sec_name); |
c14c28ba | 1087 | else |
e2fd701e DE |
1088 | printf_filtered (_("%s in load address range of section %s\n"), |
1089 | loc_string, sec_name); | |
c14c28ba PP |
1090 | else |
1091 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1092 | printf_filtered (_("%s in %s overlay section %s\n"), |
1093 | loc_string, mapped, sec_name); | |
c14c28ba | 1094 | else |
e2fd701e DE |
1095 | printf_filtered (_("%s in section %s\n"), |
1096 | loc_string, sec_name); | |
1097 | ||
1098 | do_cleanups (old_chain); | |
c5aa993b JM |
1099 | } |
1100 | } | |
c906108c | 1101 | if (matches == 0) |
a3f17187 | 1102 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1103 | } |
1104 | ||
c906108c | 1105 | static void |
fba45db2 | 1106 | address_info (char *exp, int from_tty) |
c906108c | 1107 | { |
768a979c UW |
1108 | struct gdbarch *gdbarch; |
1109 | int regno; | |
52f0bd74 AC |
1110 | struct symbol *sym; |
1111 | struct minimal_symbol *msymbol; | |
1112 | long val; | |
714835d5 | 1113 | struct obj_section *section; |
c906108c SS |
1114 | CORE_ADDR load_addr; |
1115 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1116 | if exp is a field of `this'. */ | |
1117 | ||
1118 | if (exp == 0) | |
8a3fe4f8 | 1119 | error (_("Argument required.")); |
c906108c | 1120 | |
176620f1 | 1121 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
2570f2b7 | 1122 | &is_a_field_of_this); |
c906108c SS |
1123 | if (sym == NULL) |
1124 | { | |
1125 | if (is_a_field_of_this) | |
1126 | { | |
1127 | printf_filtered ("Symbol \""); | |
1128 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1129 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1130 | printf_filtered ("\" is a field of the local class variable "); |
1131 | if (current_language->la_language == language_objc) | |
2625d86c | 1132 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1133 | else |
2625d86c | 1134 | printf_filtered ("`this'\n"); |
c906108c SS |
1135 | return; |
1136 | } | |
1137 | ||
1138 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1139 | ||
1140 | if (msymbol != NULL) | |
1141 | { | |
1142 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1143 | ||
1144 | printf_filtered ("Symbol \""); | |
1145 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1146 | current_language->la_language, DMGL_ANSI); | |
1147 | printf_filtered ("\" is at "); | |
ed49a04f | 1148 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c | 1149 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1150 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1151 | if (section_is_overlay (section)) |
1152 | { | |
1153 | load_addr = overlay_unmapped_address (load_addr, section); | |
1154 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1155 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1156 | printf_filtered (" in overlay section %s", |
1157 | section->the_bfd_section->name); | |
c906108c SS |
1158 | } |
1159 | printf_filtered (".\n"); | |
1160 | } | |
1161 | else | |
8a3fe4f8 | 1162 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1163 | return; |
1164 | } | |
1165 | ||
1166 | printf_filtered ("Symbol \""); | |
3567439c | 1167 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1168 | current_language->la_language, DMGL_ANSI); |
1169 | printf_filtered ("\" is "); | |
c5aa993b | 1170 | val = SYMBOL_VALUE (sym); |
714835d5 | 1171 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1172 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1173 | |
1174 | switch (SYMBOL_CLASS (sym)) | |
1175 | { | |
1176 | case LOC_CONST: | |
1177 | case LOC_CONST_BYTES: | |
1178 | printf_filtered ("constant"); | |
1179 | break; | |
1180 | ||
1181 | case LOC_LABEL: | |
1182 | printf_filtered ("a label at address "); | |
ed49a04f MD |
1183 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1184 | gdb_stdout); | |
c906108c SS |
1185 | if (section_is_overlay (section)) |
1186 | { | |
1187 | load_addr = overlay_unmapped_address (load_addr, section); | |
1188 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1189 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1190 | printf_filtered (" in overlay section %s", |
1191 | section->the_bfd_section->name); | |
c906108c SS |
1192 | } |
1193 | break; | |
1194 | ||
4c2df51b | 1195 | case LOC_COMPUTED: |
a67af2b9 | 1196 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1197 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1198 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1199 | function) location in a function's symbol. Oops! For the |
1200 | moment enable this when/where applicable. */ | |
768a979c | 1201 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
4c2df51b DJ |
1202 | break; |
1203 | ||
c906108c | 1204 | case LOC_REGISTER: |
768a979c UW |
1205 | /* GDBARCH is the architecture associated with the objfile the symbol |
1206 | is defined in; the target architecture may be different, and may | |
1207 | provide additional registers. However, we do not know the target | |
1208 | architecture at this point. We assume the objfile architecture | |
1209 | will contain all the standard registers that occur in debug info | |
1210 | in that objfile. */ | |
1211 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1212 | ||
2a2d4dc3 AS |
1213 | if (SYMBOL_IS_ARGUMENT (sym)) |
1214 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1215 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1216 | else |
1217 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1218 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1219 | break; |
1220 | ||
1221 | case LOC_STATIC: | |
a3f17187 | 1222 | printf_filtered (_("static storage at address ")); |
ed49a04f MD |
1223 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1224 | gdb_stdout); | |
c906108c SS |
1225 | if (section_is_overlay (section)) |
1226 | { | |
1227 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1228 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1229 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1230 | printf_filtered (_(" in overlay section %s"), |
1231 | section->the_bfd_section->name); | |
c906108c SS |
1232 | } |
1233 | break; | |
1234 | ||
c906108c | 1235 | case LOC_REGPARM_ADDR: |
768a979c UW |
1236 | /* Note comment at LOC_REGISTER. */ |
1237 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1238 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1239 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1240 | break; |
1241 | ||
1242 | case LOC_ARG: | |
a3f17187 | 1243 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1244 | break; |
1245 | ||
c906108c | 1246 | case LOC_LOCAL: |
a3f17187 | 1247 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1248 | break; |
1249 | ||
1250 | case LOC_REF_ARG: | |
a3f17187 | 1251 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1252 | break; |
1253 | ||
c906108c | 1254 | case LOC_TYPEDEF: |
a3f17187 | 1255 | printf_filtered (_("a typedef")); |
c906108c SS |
1256 | break; |
1257 | ||
1258 | case LOC_BLOCK: | |
a3f17187 | 1259 | printf_filtered (_("a function at address ")); |
675dcf4f | 1260 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
ed49a04f | 1261 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1262 | if (section_is_overlay (section)) |
1263 | { | |
1264 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1265 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1266 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1267 | printf_filtered (_(" in overlay section %s"), |
1268 | section->the_bfd_section->name); | |
c906108c SS |
1269 | } |
1270 | break; | |
1271 | ||
1272 | case LOC_UNRESOLVED: | |
1273 | { | |
1274 | struct minimal_symbol *msym; | |
1275 | ||
3567439c | 1276 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1277 | if (msym == NULL) |
1278 | printf_filtered ("unresolved"); | |
1279 | else | |
1280 | { | |
714835d5 | 1281 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1282 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1283 | |
1284 | if (section | |
1285 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1286 | printf_filtered (_("a thread-local variable at offset %s " | |
1287 | "in the thread-local storage for `%s'"), | |
1288 | paddr_nz (load_addr), section->objfile->name); | |
1289 | else | |
c906108c | 1290 | { |
e0740f77 | 1291 | printf_filtered (_("static storage at address ")); |
ed49a04f | 1292 | fputs_filtered (paddress (load_addr), gdb_stdout); |
e0740f77 JK |
1293 | if (section_is_overlay (section)) |
1294 | { | |
1295 | load_addr = overlay_unmapped_address (load_addr, section); | |
1296 | printf_filtered (_(",\n -- loaded at ")); | |
1297 | fputs_filtered (paddress (load_addr), gdb_stdout); | |
1298 | printf_filtered (_(" in overlay section %s"), | |
1299 | section->the_bfd_section->name); | |
1300 | } | |
c906108c SS |
1301 | } |
1302 | } | |
1303 | } | |
1304 | break; | |
1305 | ||
c906108c | 1306 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1307 | printf_filtered (_("optimized out")); |
c906108c | 1308 | break; |
c5aa993b | 1309 | |
c906108c | 1310 | default: |
a3f17187 | 1311 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1312 | break; |
1313 | } | |
1314 | printf_filtered (".\n"); | |
1315 | } | |
1316 | \f | |
675dcf4f MK |
1317 | |
1318 | static void | |
fba45db2 | 1319 | x_command (char *exp, int from_tty) |
c906108c SS |
1320 | { |
1321 | struct expression *expr; | |
1322 | struct format_data fmt; | |
1323 | struct cleanup *old_chain; | |
1324 | struct value *val; | |
1325 | ||
a6bac58e | 1326 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1327 | fmt.size = last_size; |
1328 | fmt.count = 1; | |
a6bac58e | 1329 | fmt.raw = 0; |
c906108c SS |
1330 | |
1331 | if (exp && *exp == '/') | |
1332 | { | |
1333 | exp++; | |
1334 | fmt = decode_format (&exp, last_format, last_size); | |
1335 | } | |
1336 | ||
1337 | /* If we have an expression, evaluate it and use it as the address. */ | |
1338 | ||
1339 | if (exp != 0 && *exp != 0) | |
1340 | { | |
1341 | expr = parse_expression (exp); | |
675dcf4f MK |
1342 | /* Cause expression not to be there any more if this command is |
1343 | repeated with Newline. But don't clobber a user-defined | |
1344 | command's definition. */ | |
c906108c SS |
1345 | if (from_tty) |
1346 | *exp = 0; | |
c13c43fd | 1347 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1348 | val = evaluate_expression (expr); |
df407dfe | 1349 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1350 | val = value_ind (val); |
1351 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1352 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1353 | if (/* last_format == 'i' && */ |
df407dfe | 1354 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1355 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1356 | next_address = value_address (val); |
c906108c | 1357 | else |
1aa20aa8 | 1358 | next_address = value_as_address (val); |
c906108c SS |
1359 | do_cleanups (old_chain); |
1360 | } | |
1361 | ||
00a4c844 | 1362 | do_examine (fmt, next_address); |
c906108c | 1363 | |
675dcf4f MK |
1364 | /* If the examine succeeds, we remember its size and format for next |
1365 | time. */ | |
c906108c SS |
1366 | last_size = fmt.size; |
1367 | last_format = fmt.format; | |
1368 | ||
1369 | /* Set a couple of internal variables if appropriate. */ | |
1370 | if (last_examine_value) | |
1371 | { | |
1372 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1373 | the correct pointer type. */ |
4478b372 | 1374 | struct type *pointer_type |
df407dfe | 1375 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1376 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1377 | value_from_pointer (pointer_type, |
1378 | last_examine_address)); | |
c5aa993b | 1379 | |
675dcf4f MK |
1380 | /* Make contents of last address examined available to the user |
1381 | as $__. If the last value has not been fetched from memory | |
1382 | then don't fetch it now; instead mark it by voiding the $__ | |
1383 | variable. */ | |
d69fe07e | 1384 | if (value_lazy (last_examine_value)) |
4fa62494 | 1385 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1386 | else |
1387 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1388 | } | |
1389 | } | |
c906108c | 1390 | \f |
c5aa993b | 1391 | |
c906108c SS |
1392 | /* Add an expression to the auto-display chain. |
1393 | Specify the expression. */ | |
1394 | ||
1395 | static void | |
fba45db2 | 1396 | display_command (char *exp, int from_tty) |
c906108c SS |
1397 | { |
1398 | struct format_data fmt; | |
52f0bd74 AC |
1399 | struct expression *expr; |
1400 | struct display *new; | |
c906108c SS |
1401 | int display_it = 1; |
1402 | ||
1403 | #if defined(TUI) | |
021e7609 AC |
1404 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1405 | `tui_version'. */ | |
fd33e6cb | 1406 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1407 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1408 | #endif |
1409 | ||
1410 | if (display_it) | |
1411 | { | |
1412 | if (exp == 0) | |
1413 | { | |
1414 | do_displays (); | |
1415 | return; | |
1416 | } | |
1417 | ||
1418 | if (*exp == '/') | |
1419 | { | |
1420 | exp++; | |
1421 | fmt = decode_format (&exp, 0, 0); | |
1422 | if (fmt.size && fmt.format == 0) | |
1423 | fmt.format = 'x'; | |
1424 | if (fmt.format == 'i' || fmt.format == 's') | |
1425 | fmt.size = 'b'; | |
1426 | } | |
1427 | else | |
1428 | { | |
1429 | fmt.format = 0; | |
1430 | fmt.size = 0; | |
1431 | fmt.count = 0; | |
a6bac58e | 1432 | fmt.raw = 0; |
c906108c SS |
1433 | } |
1434 | ||
a3247a22 | 1435 | innermost_block = NULL; |
c906108c SS |
1436 | expr = parse_expression (exp); |
1437 | ||
1438 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1439 | ||
fa8a61dc | 1440 | new->exp_string = xstrdup (exp); |
c906108c SS |
1441 | new->exp = expr; |
1442 | new->block = innermost_block; | |
1443 | new->next = display_chain; | |
1444 | new->number = ++display_number; | |
1445 | new->format = fmt; | |
b5de0fa7 | 1446 | new->enabled_p = 1; |
c906108c SS |
1447 | display_chain = new; |
1448 | ||
1449 | if (from_tty && target_has_execution) | |
1450 | do_one_display (new); | |
1451 | ||
1452 | dont_repeat (); | |
1453 | } | |
1454 | } | |
1455 | ||
1456 | static void | |
fba45db2 | 1457 | free_display (struct display *d) |
c906108c | 1458 | { |
fa8a61dc | 1459 | xfree (d->exp_string); |
b8c9b27d KB |
1460 | xfree (d->exp); |
1461 | xfree (d); | |
c906108c SS |
1462 | } |
1463 | ||
675dcf4f MK |
1464 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1465 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1466 | |
1467 | void | |
fba45db2 | 1468 | clear_displays (void) |
c906108c | 1469 | { |
52f0bd74 | 1470 | struct display *d; |
c906108c SS |
1471 | |
1472 | while ((d = display_chain) != NULL) | |
1473 | { | |
c906108c | 1474 | display_chain = d->next; |
fa8a61dc | 1475 | free_display (d); |
c906108c SS |
1476 | } |
1477 | } | |
1478 | ||
1479 | /* Delete the auto-display number NUM. */ | |
1480 | ||
1481 | static void | |
fba45db2 | 1482 | delete_display (int num) |
c906108c | 1483 | { |
52f0bd74 | 1484 | struct display *d1, *d; |
c906108c SS |
1485 | |
1486 | if (!display_chain) | |
8a3fe4f8 | 1487 | error (_("No display number %d."), num); |
c906108c SS |
1488 | |
1489 | if (display_chain->number == num) | |
1490 | { | |
1491 | d1 = display_chain; | |
1492 | display_chain = d1->next; | |
1493 | free_display (d1); | |
1494 | } | |
1495 | else | |
c5aa993b | 1496 | for (d = display_chain;; d = d->next) |
c906108c SS |
1497 | { |
1498 | if (d->next == 0) | |
8a3fe4f8 | 1499 | error (_("No display number %d."), num); |
c906108c SS |
1500 | if (d->next->number == num) |
1501 | { | |
1502 | d1 = d->next; | |
1503 | d->next = d1->next; | |
1504 | free_display (d1); | |
1505 | break; | |
1506 | } | |
1507 | } | |
1508 | } | |
1509 | ||
1510 | /* Delete some values from the auto-display chain. | |
1511 | Specify the element numbers. */ | |
1512 | ||
1513 | static void | |
fba45db2 | 1514 | undisplay_command (char *args, int from_tty) |
c906108c | 1515 | { |
52f0bd74 AC |
1516 | char *p = args; |
1517 | char *p1; | |
1518 | int num; | |
c906108c SS |
1519 | |
1520 | if (args == 0) | |
1521 | { | |
9e2f0ad4 | 1522 | if (query (_("Delete all auto-display expressions? "))) |
c906108c SS |
1523 | clear_displays (); |
1524 | dont_repeat (); | |
1525 | return; | |
1526 | } | |
1527 | ||
1528 | while (*p) | |
1529 | { | |
1530 | p1 = p; | |
c5aa993b JM |
1531 | while (*p1 >= '0' && *p1 <= '9') |
1532 | p1++; | |
c906108c | 1533 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1534 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1535 | |
1536 | num = atoi (p); | |
1537 | ||
1538 | delete_display (num); | |
1539 | ||
1540 | p = p1; | |
c5aa993b JM |
1541 | while (*p == ' ' || *p == '\t') |
1542 | p++; | |
c906108c SS |
1543 | } |
1544 | dont_repeat (); | |
1545 | } | |
1546 | ||
1547 | /* Display a single auto-display. | |
1548 | Do nothing if the display cannot be printed in the current context, | |
1549 | or if the display is disabled. */ | |
1550 | ||
1551 | static void | |
fba45db2 | 1552 | do_one_display (struct display *d) |
c906108c SS |
1553 | { |
1554 | int within_current_scope; | |
1555 | ||
b5de0fa7 | 1556 | if (d->enabled_p == 0) |
c906108c SS |
1557 | return; |
1558 | ||
a3247a22 PP |
1559 | if (d->exp == NULL) |
1560 | { | |
1561 | volatile struct gdb_exception ex; | |
1562 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1563 | { | |
1564 | innermost_block = NULL; | |
1565 | d->exp = parse_expression (d->exp_string); | |
1566 | d->block = innermost_block; | |
1567 | } | |
1568 | if (ex.reason < 0) | |
1569 | { | |
1570 | /* Can't re-parse the expression. Disable this display item. */ | |
1571 | d->enabled_p = 0; | |
1572 | warning (_("Unable to display \"%s\": %s"), | |
1573 | d->exp_string, ex.message); | |
1574 | return; | |
1575 | } | |
1576 | } | |
1577 | ||
c906108c | 1578 | if (d->block) |
ae767bfb | 1579 | within_current_scope = contained_in (get_selected_block (0), d->block); |
c906108c SS |
1580 | else |
1581 | within_current_scope = 1; | |
1582 | if (!within_current_scope) | |
1583 | return; | |
1584 | ||
1585 | current_display_number = d->number; | |
1586 | ||
1587 | annotate_display_begin (); | |
1588 | printf_filtered ("%d", d->number); | |
1589 | annotate_display_number_end (); | |
1590 | printf_filtered (": "); | |
1591 | if (d->format.size) | |
1592 | { | |
1593 | CORE_ADDR addr; | |
3d6d86c6 | 1594 | struct value *val; |
c906108c SS |
1595 | |
1596 | annotate_display_format (); | |
1597 | ||
1598 | printf_filtered ("x/"); | |
1599 | if (d->format.count != 1) | |
1600 | printf_filtered ("%d", d->format.count); | |
1601 | printf_filtered ("%c", d->format.format); | |
1602 | if (d->format.format != 'i' && d->format.format != 's') | |
1603 | printf_filtered ("%c", d->format.size); | |
1604 | printf_filtered (" "); | |
1605 | ||
1606 | annotate_display_expression (); | |
1607 | ||
fa8a61dc | 1608 | puts_filtered (d->exp_string); |
c906108c SS |
1609 | annotate_display_expression_end (); |
1610 | ||
6a2eb474 | 1611 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1612 | printf_filtered ("\n"); |
1613 | else | |
1614 | printf_filtered (" "); | |
c5aa993b | 1615 | |
c906108c | 1616 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1617 | addr = value_as_address (val); |
c906108c | 1618 | if (d->format.format == 'i') |
d80b854b | 1619 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); |
c906108c SS |
1620 | |
1621 | annotate_display_value (); | |
1622 | ||
00a4c844 | 1623 | do_examine (d->format, addr); |
c906108c SS |
1624 | } |
1625 | else | |
1626 | { | |
79a45b7d TT |
1627 | struct value_print_options opts; |
1628 | ||
c906108c SS |
1629 | annotate_display_format (); |
1630 | ||
1631 | if (d->format.format) | |
1632 | printf_filtered ("/%c ", d->format.format); | |
1633 | ||
1634 | annotate_display_expression (); | |
1635 | ||
fa8a61dc | 1636 | puts_filtered (d->exp_string); |
c906108c SS |
1637 | annotate_display_expression_end (); |
1638 | ||
1639 | printf_filtered (" = "); | |
1640 | ||
1641 | annotate_display_expression (); | |
1642 | ||
79a45b7d | 1643 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1644 | opts.raw = d->format.raw; |
c906108c | 1645 | print_formatted (evaluate_expression (d->exp), |
79a45b7d | 1646 | d->format.size, &opts, gdb_stdout); |
c906108c SS |
1647 | printf_filtered ("\n"); |
1648 | } | |
1649 | ||
1650 | annotate_display_end (); | |
1651 | ||
1652 | gdb_flush (gdb_stdout); | |
1653 | current_display_number = -1; | |
1654 | } | |
1655 | ||
1656 | /* Display all of the values on the auto-display chain which can be | |
1657 | evaluated in the current scope. */ | |
1658 | ||
1659 | void | |
fba45db2 | 1660 | do_displays (void) |
c906108c | 1661 | { |
52f0bd74 | 1662 | struct display *d; |
c906108c SS |
1663 | |
1664 | for (d = display_chain; d; d = d->next) | |
1665 | do_one_display (d); | |
1666 | } | |
1667 | ||
1668 | /* Delete the auto-display which we were in the process of displaying. | |
1669 | This is done when there is an error or a signal. */ | |
1670 | ||
1671 | void | |
fba45db2 | 1672 | disable_display (int num) |
c906108c | 1673 | { |
52f0bd74 | 1674 | struct display *d; |
c906108c SS |
1675 | |
1676 | for (d = display_chain; d; d = d->next) | |
1677 | if (d->number == num) | |
1678 | { | |
b5de0fa7 | 1679 | d->enabled_p = 0; |
c906108c SS |
1680 | return; |
1681 | } | |
a3f17187 | 1682 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1683 | } |
c5aa993b | 1684 | |
c906108c | 1685 | void |
fba45db2 | 1686 | disable_current_display (void) |
c906108c SS |
1687 | { |
1688 | if (current_display_number >= 0) | |
1689 | { | |
1690 | disable_display (current_display_number); | |
675dcf4f MK |
1691 | fprintf_unfiltered (gdb_stderr, _("\ |
1692 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1693 | current_display_number); |
c906108c SS |
1694 | } |
1695 | current_display_number = -1; | |
1696 | } | |
1697 | ||
1698 | static void | |
fba45db2 | 1699 | display_info (char *ignore, int from_tty) |
c906108c | 1700 | { |
52f0bd74 | 1701 | struct display *d; |
c906108c SS |
1702 | |
1703 | if (!display_chain) | |
a3f17187 | 1704 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1705 | else |
a3f17187 AC |
1706 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1707 | Num Enb Expression\n")); | |
c906108c SS |
1708 | |
1709 | for (d = display_chain; d; d = d->next) | |
1710 | { | |
b5de0fa7 | 1711 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1712 | if (d->format.size) |
1713 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1714 | d->format.format); |
c906108c SS |
1715 | else if (d->format.format) |
1716 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1717 | puts_filtered (d->exp_string); |
ae767bfb | 1718 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1719 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1720 | printf_filtered ("\n"); |
1721 | gdb_flush (gdb_stdout); | |
1722 | } | |
1723 | } | |
1724 | ||
1725 | static void | |
fba45db2 | 1726 | enable_display (char *args, int from_tty) |
c906108c | 1727 | { |
52f0bd74 AC |
1728 | char *p = args; |
1729 | char *p1; | |
1730 | int num; | |
1731 | struct display *d; | |
c906108c SS |
1732 | |
1733 | if (p == 0) | |
1734 | { | |
1735 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1736 | d->enabled_p = 1; |
c906108c SS |
1737 | } |
1738 | else | |
1739 | while (*p) | |
1740 | { | |
1741 | p1 = p; | |
1742 | while (*p1 >= '0' && *p1 <= '9') | |
1743 | p1++; | |
1744 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1745 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1746 | |
c906108c | 1747 | num = atoi (p); |
c5aa993b | 1748 | |
c906108c SS |
1749 | for (d = display_chain; d; d = d->next) |
1750 | if (d->number == num) | |
1751 | { | |
b5de0fa7 | 1752 | d->enabled_p = 1; |
c906108c SS |
1753 | goto win; |
1754 | } | |
a3f17187 | 1755 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1756 | win: |
1757 | p = p1; | |
1758 | while (*p == ' ' || *p == '\t') | |
1759 | p++; | |
1760 | } | |
1761 | } | |
1762 | ||
c906108c | 1763 | static void |
fba45db2 | 1764 | disable_display_command (char *args, int from_tty) |
c906108c | 1765 | { |
52f0bd74 AC |
1766 | char *p = args; |
1767 | char *p1; | |
1768 | struct display *d; | |
c906108c SS |
1769 | |
1770 | if (p == 0) | |
1771 | { | |
1772 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1773 | d->enabled_p = 0; |
c906108c SS |
1774 | } |
1775 | else | |
1776 | while (*p) | |
1777 | { | |
1778 | p1 = p; | |
1779 | while (*p1 >= '0' && *p1 <= '9') | |
1780 | p1++; | |
1781 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1782 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1783 | |
c906108c SS |
1784 | disable_display (atoi (p)); |
1785 | ||
1786 | p = p1; | |
1787 | while (*p == ' ' || *p == '\t') | |
1788 | p++; | |
1789 | } | |
1790 | } | |
a3247a22 PP |
1791 | |
1792 | /* Return 1 if D uses SOLIB (and will become dangling when SOLIB | |
1793 | is unloaded), otherwise return 0. */ | |
1794 | ||
1795 | static int | |
1796 | display_uses_solib_p (const struct display *d, | |
1797 | const struct so_list *solib) | |
1798 | { | |
36dc683c | 1799 | int endpos; |
a3247a22 | 1800 | struct expression *const exp = d->exp; |
36dc683c | 1801 | const union exp_element *const elts = exp->elts; |
a3247a22 PP |
1802 | |
1803 | if (d->block != NULL | |
5fd1a349 | 1804 | && solib_contains_address_p (solib, d->block->startaddr)) |
a3247a22 PP |
1805 | return 1; |
1806 | ||
36dc683c | 1807 | for (endpos = exp->nelts; endpos > 0; ) |
a3247a22 | 1808 | { |
36dc683c DE |
1809 | int i, args, oplen = 0; |
1810 | ||
1811 | exp->language_defn->la_exp_desc->operator_length (exp, endpos, | |
1812 | &oplen, &args); | |
1813 | gdb_assert (oplen > 0); | |
a3247a22 | 1814 | |
36dc683c | 1815 | i = endpos - oplen; |
a3247a22 PP |
1816 | if (elts[i].opcode == OP_VAR_VALUE) |
1817 | { | |
1818 | const struct block *const block = elts[i + 1].block; | |
1819 | const struct symbol *const symbol = elts[i + 2].symbol; | |
1820 | const struct obj_section *const section = | |
1821 | SYMBOL_OBJ_SECTION (symbol); | |
1822 | ||
1823 | if (block != NULL | |
5fd1a349 | 1824 | && solib_contains_address_p (solib, block->startaddr)) |
a3247a22 PP |
1825 | return 1; |
1826 | ||
1827 | if (section && section->objfile == solib->objfile) | |
1828 | return 1; | |
1829 | } | |
36dc683c | 1830 | endpos -= oplen; |
a3247a22 | 1831 | } |
36dc683c | 1832 | |
a3247a22 PP |
1833 | return 0; |
1834 | } | |
1835 | ||
1836 | /* display_chain items point to blocks and expressions. Some expressions in | |
1837 | turn may point to symbols. | |
1838 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1839 | obstack_free'd when a shared library is unloaded. | |
1840 | Clear pointers that are about to become dangling. | |
1841 | Both .exp and .block fields will be restored next time we need to display | |
1842 | an item by re-parsing .exp_string field in the new execution context. */ | |
1843 | ||
1844 | static void | |
1845 | clear_dangling_display_expressions (struct so_list *solib) | |
1846 | { | |
1847 | struct display *d; | |
1848 | struct objfile *objfile = NULL; | |
1849 | ||
1850 | for (d = display_chain; d; d = d->next) | |
1851 | { | |
1852 | if (d->exp && display_uses_solib_p (d, solib)) | |
1853 | { | |
1854 | xfree (d->exp); | |
1855 | d->exp = NULL; | |
1856 | d->block = NULL; | |
1857 | } | |
1858 | } | |
1859 | } | |
c906108c | 1860 | \f |
c5aa993b | 1861 | |
675dcf4f | 1862 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1863 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1864 | name will be used. STREAM is the ui_file on which to print the | |
1865 | value. INDENT specifies the number of indent levels to print | |
1866 | before printing the variable name. */ | |
c906108c SS |
1867 | |
1868 | void | |
aad95b57 TT |
1869 | print_variable_and_value (const char *name, struct symbol *var, |
1870 | struct frame_info *frame, | |
1871 | struct ui_file *stream, int indent) | |
c906108c | 1872 | { |
aad95b57 | 1873 | struct value *val; |
79a45b7d | 1874 | struct value_print_options opts; |
c906108c | 1875 | |
aad95b57 TT |
1876 | if (!name) |
1877 | name = SYMBOL_PRINT_NAME (var); | |
1878 | ||
1879 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
1880 | ||
1881 | val = read_var_value (var, frame); | |
79a45b7d | 1882 | get_user_print_options (&opts); |
aad95b57 TT |
1883 | common_val_print (val, stream, indent, &opts, current_language); |
1884 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
1885 | } |
1886 | ||
c906108c | 1887 | static void |
fba45db2 | 1888 | printf_command (char *arg, int from_tty) |
c906108c | 1889 | { |
52f0bd74 AC |
1890 | char *f = NULL; |
1891 | char *s = arg; | |
c906108c | 1892 | char *string = NULL; |
3d6d86c6 | 1893 | struct value **val_args; |
c906108c SS |
1894 | char *substrings; |
1895 | char *current_substring; | |
1896 | int nargs = 0; | |
1897 | int allocated_args = 20; | |
1898 | struct cleanup *old_cleanups; | |
1899 | ||
675dcf4f | 1900 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1901 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1902 | |
1903 | if (s == 0) | |
e2e0b3e5 | 1904 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1905 | |
1906 | /* Skip white space before format string */ | |
c5aa993b JM |
1907 | while (*s == ' ' || *s == '\t') |
1908 | s++; | |
c906108c | 1909 | |
675dcf4f | 1910 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1911 | if (*s++ != '"') |
8a3fe4f8 | 1912 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1913 | |
1914 | /* Parse the format-control string and copy it into the string STRING, | |
1915 | processing some kinds of escape sequence. */ | |
1916 | ||
1917 | f = string = (char *) alloca (strlen (s) + 1); | |
1918 | ||
1919 | while (*s != '"') | |
1920 | { | |
1921 | int c = *s++; | |
1922 | switch (c) | |
1923 | { | |
1924 | case '\0': | |
8a3fe4f8 | 1925 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1926 | |
1927 | case '\\': | |
1928 | switch (c = *s++) | |
1929 | { | |
1930 | case '\\': | |
1931 | *f++ = '\\'; | |
1932 | break; | |
1933 | case 'a': | |
c906108c | 1934 | *f++ = '\a'; |
c906108c SS |
1935 | break; |
1936 | case 'b': | |
1937 | *f++ = '\b'; | |
1938 | break; | |
1939 | case 'f': | |
1940 | *f++ = '\f'; | |
1941 | break; | |
1942 | case 'n': | |
1943 | *f++ = '\n'; | |
1944 | break; | |
1945 | case 'r': | |
1946 | *f++ = '\r'; | |
1947 | break; | |
1948 | case 't': | |
1949 | *f++ = '\t'; | |
1950 | break; | |
1951 | case 'v': | |
1952 | *f++ = '\v'; | |
1953 | break; | |
1954 | case '"': | |
1955 | *f++ = '"'; | |
1956 | break; | |
1957 | default: | |
1958 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 1959 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
1960 | c); |
1961 | } | |
1962 | break; | |
1963 | ||
1964 | default: | |
1965 | *f++ = c; | |
1966 | } | |
1967 | } | |
1968 | ||
1969 | /* Skip over " and following space and comma. */ | |
1970 | s++; | |
1971 | *f++ = '\0'; | |
c5aa993b JM |
1972 | while (*s == ' ' || *s == '\t') |
1973 | s++; | |
c906108c SS |
1974 | |
1975 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 1976 | error (_("Invalid argument syntax")); |
c906108c | 1977 | |
c5aa993b JM |
1978 | if (*s == ',') |
1979 | s++; | |
1980 | while (*s == ' ' || *s == '\t') | |
1981 | s++; | |
c906108c SS |
1982 | |
1983 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
1984 | substrings = alloca (strlen (string) * 2); | |
1985 | current_substring = substrings; | |
1986 | ||
1987 | { | |
1988 | /* Now scan the string for %-specs and see what kinds of args they want. | |
1989 | argclass[I] classifies the %-specs so we can give printf_filtered | |
1990 | something of the right size. */ | |
1991 | ||
c5aa993b JM |
1992 | enum argclass |
1993 | { | |
6c7a06a3 TT |
1994 | int_arg, long_arg, long_long_arg, ptr_arg, |
1995 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 1996 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 1997 | }; |
c906108c SS |
1998 | enum argclass *argclass; |
1999 | enum argclass this_argclass; | |
2000 | char *last_arg; | |
2001 | int nargs_wanted; | |
c906108c SS |
2002 | int i; |
2003 | ||
2004 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2005 | nargs_wanted = 0; | |
2006 | f = string; | |
2007 | last_arg = string; | |
2008 | while (*f) | |
2009 | if (*f++ == '%') | |
2010 | { | |
46e9880c DJ |
2011 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2012 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2013 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2014 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2015 | int bad = 0; |
2016 | ||
2017 | /* Check the validity of the format specifier, and work | |
2018 | out what argument it expects. We only accept C89 | |
2019 | format strings, with the exception of long long (which | |
2020 | we autoconf for). */ | |
2021 | ||
2022 | /* Skip over "%%". */ | |
2023 | if (*f == '%') | |
c906108c | 2024 | { |
c906108c | 2025 | f++; |
46e9880c | 2026 | continue; |
c906108c | 2027 | } |
46e9880c DJ |
2028 | |
2029 | /* The first part of a format specifier is a set of flag | |
2030 | characters. */ | |
2031 | while (strchr ("0-+ #", *f)) | |
2032 | { | |
2033 | if (*f == '#') | |
2034 | seen_hash = 1; | |
2035 | else if (*f == '0') | |
2036 | seen_zero = 1; | |
2037 | else if (*f == ' ') | |
2038 | seen_space = 1; | |
2039 | else if (*f == '+') | |
2040 | seen_plus = 1; | |
2041 | f++; | |
2042 | } | |
2043 | ||
2044 | /* The next part of a format specifier is a width. */ | |
2045 | while (strchr ("0123456789", *f)) | |
2046 | f++; | |
2047 | ||
2048 | /* The next part of a format specifier is a precision. */ | |
2049 | if (*f == '.') | |
2050 | { | |
2051 | seen_prec = 1; | |
2052 | f++; | |
2053 | while (strchr ("0123456789", *f)) | |
2054 | f++; | |
2055 | } | |
2056 | ||
2057 | /* The next part of a format specifier is a length modifier. */ | |
2058 | if (*f == 'h') | |
2059 | { | |
2060 | seen_h = 1; | |
2061 | f++; | |
2062 | } | |
2063 | else if (*f == 'l') | |
2064 | { | |
2065 | f++; | |
2066 | lcount++; | |
2067 | if (*f == 'l') | |
2068 | { | |
2069 | f++; | |
2070 | lcount++; | |
2071 | } | |
2072 | } | |
2073 | else if (*f == 'L') | |
2074 | { | |
2075 | seen_big_l = 1; | |
2076 | f++; | |
2077 | } | |
0aea4bf3 LM |
2078 | /* Decimal32 modifier. */ |
2079 | else if (*f == 'H') | |
2080 | { | |
2081 | seen_big_h = 1; | |
2082 | f++; | |
2083 | } | |
2084 | /* Decimal64 and Decimal128 modifiers. */ | |
2085 | else if (*f == 'D') | |
2086 | { | |
2087 | f++; | |
2088 | ||
2089 | /* Check for a Decimal128. */ | |
2090 | if (*f == 'D') | |
2091 | { | |
2092 | f++; | |
2093 | seen_double_big_d = 1; | |
2094 | } | |
2095 | else | |
2096 | seen_big_d = 1; | |
2097 | } | |
46e9880c | 2098 | |
c906108c SS |
2099 | switch (*f) |
2100 | { | |
46e9880c DJ |
2101 | case 'u': |
2102 | if (seen_hash) | |
2103 | bad = 1; | |
2104 | /* FALLTHROUGH */ | |
2105 | ||
2106 | case 'o': | |
2107 | case 'x': | |
2108 | case 'X': | |
2109 | if (seen_space || seen_plus) | |
2110 | bad = 1; | |
2111 | /* FALLTHROUGH */ | |
2112 | ||
2113 | case 'd': | |
2114 | case 'i': | |
2115 | if (lcount == 0) | |
2116 | this_argclass = int_arg; | |
2117 | else if (lcount == 1) | |
2118 | this_argclass = long_arg; | |
2119 | else | |
2120 | this_argclass = long_long_arg; | |
2121 | ||
2122 | if (seen_big_l) | |
2123 | bad = 1; | |
2124 | break; | |
2125 | ||
2126 | case 'c': | |
6c7a06a3 TT |
2127 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2128 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2129 | bad = 1; |
2130 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2131 | bad = 1; | |
2132 | break; | |
2133 | ||
2134 | case 'p': | |
2135 | this_argclass = ptr_arg; | |
2136 | if (lcount || seen_h || seen_big_l) | |
2137 | bad = 1; | |
2138 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2139 | bad = 1; | |
2140 | break; | |
2141 | ||
c906108c | 2142 | case 's': |
6c7a06a3 TT |
2143 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2144 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2145 | bad = 1; |
2146 | if (seen_zero || seen_space || seen_plus) | |
2147 | bad = 1; | |
c906108c SS |
2148 | break; |
2149 | ||
2150 | case 'e': | |
2151 | case 'f': | |
2152 | case 'g': | |
46e9880c DJ |
2153 | case 'E': |
2154 | case 'G': | |
0aea4bf3 LM |
2155 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2156 | this_argclass = decfloat_arg; | |
2157 | else if (seen_big_l) | |
46e9880c DJ |
2158 | this_argclass = long_double_arg; |
2159 | else | |
2160 | this_argclass = double_arg; | |
2161 | ||
2162 | if (lcount || seen_h) | |
2163 | bad = 1; | |
c906108c SS |
2164 | break; |
2165 | ||
2166 | case '*': | |
8a3fe4f8 | 2167 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2168 | |
2169 | case 'n': | |
8a3fe4f8 | 2170 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2171 | |
46e9880c DJ |
2172 | case '\0': |
2173 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2174 | |
2175 | default: | |
46e9880c | 2176 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2177 | } |
46e9880c DJ |
2178 | |
2179 | if (bad) | |
2180 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
2181 | *f); | |
2182 | ||
c906108c | 2183 | f++; |
09d71d23 AS |
2184 | |
2185 | if (lcount > 1 && USE_PRINTF_I64) | |
2186 | { | |
2187 | /* Windows' printf does support long long, but not the usual way. | |
2188 | Convert %lld to %I64d. */ | |
2189 | int length_before_ll = f - last_arg - 1 - lcount; | |
2190 | strncpy (current_substring, last_arg, length_before_ll); | |
2191 | strcpy (current_substring + length_before_ll, "I64"); | |
2192 | current_substring[length_before_ll + 3] = | |
2193 | last_arg[length_before_ll + lcount]; | |
2194 | current_substring += length_before_ll + 4; | |
2195 | } | |
6c7a06a3 TT |
2196 | else if (this_argclass == wide_string_arg |
2197 | || this_argclass == wide_char_arg) | |
2198 | { | |
2199 | /* Convert %ls or %lc to %s. */ | |
2200 | int length_before_ls = f - last_arg - 2; | |
2201 | strncpy (current_substring, last_arg, length_before_ls); | |
2202 | strcpy (current_substring + length_before_ls, "s"); | |
2203 | current_substring += length_before_ls + 2; | |
2204 | } | |
09d71d23 AS |
2205 | else |
2206 | { | |
2207 | strncpy (current_substring, last_arg, f - last_arg); | |
2208 | current_substring += f - last_arg; | |
2209 | } | |
46e9880c DJ |
2210 | *current_substring++ = '\0'; |
2211 | last_arg = f; | |
2212 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2213 | } |
2214 | ||
2215 | /* Now, parse all arguments and evaluate them. | |
2216 | Store the VALUEs in VAL_ARGS. */ | |
2217 | ||
2218 | while (*s != '\0') | |
2219 | { | |
2220 | char *s1; | |
2221 | if (nargs == allocated_args) | |
f976f6d4 AC |
2222 | val_args = (struct value **) xrealloc ((char *) val_args, |
2223 | (allocated_args *= 2) | |
2224 | * sizeof (struct value *)); | |
c906108c SS |
2225 | s1 = s; |
2226 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2227 | |
c906108c SS |
2228 | nargs++; |
2229 | s = s1; | |
2230 | if (*s == ',') | |
2231 | s++; | |
2232 | } | |
c5aa993b | 2233 | |
c906108c | 2234 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2235 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2236 | |
2237 | /* Now actually print them. */ | |
2238 | current_substring = substrings; | |
2239 | for (i = 0; i < nargs; i++) | |
2240 | { | |
2241 | switch (argclass[i]) | |
2242 | { | |
2243 | case string_arg: | |
2244 | { | |
777ea8f1 | 2245 | gdb_byte *str; |
c906108c SS |
2246 | CORE_ADDR tem; |
2247 | int j; | |
1aa20aa8 | 2248 | tem = value_as_address (val_args[i]); |
c906108c SS |
2249 | |
2250 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2251 | for (j = 0;; j++) |
c906108c | 2252 | { |
777ea8f1 | 2253 | gdb_byte c; |
c906108c | 2254 | QUIT; |
d4b2399a | 2255 | read_memory (tem + j, &c, 1); |
c906108c SS |
2256 | if (c == 0) |
2257 | break; | |
2258 | } | |
2259 | ||
2260 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2261 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2262 | if (j != 0) |
2263 | read_memory (tem, str, j); | |
c906108c SS |
2264 | str[j] = 0; |
2265 | ||
777ea8f1 | 2266 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2267 | } |
2268 | break; | |
6c7a06a3 TT |
2269 | case wide_string_arg: |
2270 | { | |
2271 | gdb_byte *str; | |
2272 | CORE_ADDR tem; | |
2273 | int j; | |
e6c014f2 UW |
2274 | struct type *wctype = lookup_typename (current_language, |
2275 | current_gdbarch, | |
2276 | "wchar_t", NULL, 0); | |
6c7a06a3 TT |
2277 | int wcwidth = TYPE_LENGTH (wctype); |
2278 | gdb_byte *buf = alloca (wcwidth); | |
2279 | struct obstack output; | |
2280 | struct cleanup *inner_cleanup; | |
2281 | ||
2282 | tem = value_as_address (val_args[i]); | |
2283 | ||
2284 | /* This is a %s argument. Find the length of the string. */ | |
2285 | for (j = 0;; j += wcwidth) | |
2286 | { | |
2287 | QUIT; | |
2288 | read_memory (tem + j, buf, wcwidth); | |
2289 | if (extract_unsigned_integer (buf, wcwidth) == 0) | |
2290 | break; | |
2291 | } | |
2292 | ||
2293 | /* Copy the string contents into a string inside GDB. */ | |
2294 | str = (gdb_byte *) alloca (j + wcwidth); | |
2295 | if (j != 0) | |
2296 | read_memory (tem, str, j); | |
2297 | memset (&str[j], 0, wcwidth); | |
2298 | ||
2299 | obstack_init (&output); | |
2300 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2301 | ||
2302 | convert_between_encodings (target_wide_charset (), | |
2303 | host_charset (), | |
2304 | str, j, wcwidth, | |
2305 | &output, translit_char); | |
2306 | obstack_grow_str0 (&output, ""); | |
2307 | ||
2308 | printf_filtered (current_substring, obstack_base (&output)); | |
2309 | do_cleanups (inner_cleanup); | |
2310 | } | |
2311 | break; | |
2312 | case wide_char_arg: | |
2313 | { | |
e6c014f2 UW |
2314 | struct type *wctype = lookup_typename (current_language, |
2315 | current_gdbarch, | |
2316 | "wchar_t", NULL, 0); | |
6c7a06a3 TT |
2317 | struct type *valtype; |
2318 | struct obstack output; | |
2319 | struct cleanup *inner_cleanup; | |
2320 | const gdb_byte *bytes; | |
2321 | ||
2322 | valtype = value_type (val_args[i]); | |
2323 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2324 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2325 | error (_("expected wchar_t argument for %%lc")); | |
2326 | ||
2327 | bytes = value_contents (val_args[i]); | |
2328 | ||
2329 | obstack_init (&output); | |
2330 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2331 | ||
2332 | convert_between_encodings (target_wide_charset (), | |
2333 | host_charset (), | |
2334 | bytes, TYPE_LENGTH (valtype), | |
2335 | TYPE_LENGTH (valtype), | |
2336 | &output, translit_char); | |
2337 | obstack_grow_str0 (&output, ""); | |
2338 | ||
2339 | printf_filtered (current_substring, obstack_base (&output)); | |
2340 | do_cleanups (inner_cleanup); | |
2341 | } | |
2342 | break; | |
c906108c SS |
2343 | case double_arg: |
2344 | { | |
b806fb9a UW |
2345 | struct type *type = value_type (val_args[i]); |
2346 | DOUBLEST val; | |
2347 | int inv; | |
2348 | ||
2349 | /* If format string wants a float, unchecked-convert the value | |
2350 | to floating point of the same size. */ | |
2351 | type = float_type_from_length (current_gdbarch, type); | |
2352 | val = unpack_double (type, value_contents (val_args[i]), &inv); | |
2353 | if (inv) | |
2354 | error (_("Invalid floating value found in program.")); | |
2355 | ||
2356 | printf_filtered (current_substring, (double) val); | |
c906108c SS |
2357 | break; |
2358 | } | |
46e9880c DJ |
2359 | case long_double_arg: |
2360 | #ifdef HAVE_LONG_DOUBLE | |
2361 | { | |
b806fb9a UW |
2362 | struct type *type = value_type (val_args[i]); |
2363 | DOUBLEST val; | |
2364 | int inv; | |
2365 | ||
2366 | /* If format string wants a float, unchecked-convert the value | |
2367 | to floating point of the same size. */ | |
2368 | type = float_type_from_length (current_gdbarch, type); | |
2369 | val = unpack_double (type, value_contents (val_args[i]), &inv); | |
2370 | if (inv) | |
2371 | error (_("Invalid floating value found in program.")); | |
2372 | ||
2373 | printf_filtered (current_substring, (long double) val); | |
46e9880c DJ |
2374 | break; |
2375 | } | |
2376 | #else | |
2377 | error (_("long double not supported in printf")); | |
2378 | #endif | |
c906108c SS |
2379 | case long_long_arg: |
2380 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2381 | { | |
2382 | long long val = value_as_long (val_args[i]); | |
2383 | printf_filtered (current_substring, val); | |
2384 | break; | |
2385 | } | |
2386 | #else | |
8a3fe4f8 | 2387 | error (_("long long not supported in printf")); |
c906108c SS |
2388 | #endif |
2389 | case int_arg: | |
2390 | { | |
46e9880c DJ |
2391 | int val = value_as_long (val_args[i]); |
2392 | printf_filtered (current_substring, val); | |
2393 | break; | |
2394 | } | |
2395 | case long_arg: | |
2396 | { | |
c906108c SS |
2397 | long val = value_as_long (val_args[i]); |
2398 | printf_filtered (current_substring, val); | |
2399 | break; | |
2400 | } | |
1a619819 | 2401 | |
0aea4bf3 LM |
2402 | /* Handles decimal floating values. */ |
2403 | case decfloat_arg: | |
1a619819 | 2404 | { |
0aea4bf3 | 2405 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2406 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2407 | /* If we have native support for Decimal floating |
2408 | printing, handle it here. */ | |
2409 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2410 | #else |
1a619819 LM |
2411 | |
2412 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2413 | we convert the DFP values to string and print them using |
2414 | the %s format specifier. */ | |
2415 | ||
2416 | char *eos, *sos; | |
2417 | int nnull_chars = 0; | |
2418 | ||
2419 | /* Parameter data. */ | |
2420 | struct type *param_type = value_type (val_args[i]); | |
2421 | unsigned int param_len = TYPE_LENGTH (param_type); | |
2422 | ||
2423 | /* DFP output data. */ | |
2424 | struct value *dfp_value = NULL; | |
2425 | gdb_byte *dfp_ptr; | |
2426 | int dfp_len = 16; | |
2427 | gdb_byte dec[16]; | |
2428 | struct type *dfp_type = NULL; | |
2429 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2430 | |
2431 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2432 | and check for DFP length modifiers. */ |
1a619819 LM |
2433 | eos = current_substring + strlen (current_substring); |
2434 | ||
0aea4bf3 LM |
2435 | /* Look for the float/double format specifier. */ |
2436 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2437 | && *eos != 'g' && *eos != 'G') | |
2438 | eos--; | |
2439 | ||
2440 | sos = eos; | |
2441 | ||
2442 | /* Search for the '%' char and extract the size and type of | |
2443 | the output decimal value based on its modifiers | |
2444 | (%Hf, %Df, %DDf). */ | |
2445 | while (*--sos != '%') | |
2446 | { | |
2447 | if (*sos == 'H') | |
2448 | { | |
2449 | dfp_len = 4; | |
2450 | dfp_type = builtin_type (current_gdbarch)->builtin_decfloat; | |
2451 | } | |
2452 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2453 | { | |
2454 | dfp_len = 16; | |
2455 | dfp_type = builtin_type (current_gdbarch)->builtin_declong; | |
2456 | sos--; | |
2457 | } | |
2458 | else | |
2459 | { | |
2460 | dfp_len = 8; | |
2461 | dfp_type = builtin_type (current_gdbarch)->builtin_decdouble; | |
2462 | } | |
2463 | } | |
2464 | ||
2465 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2466 | *++sos = 's'; | |
2467 | ||
2468 | /* Go through the whole format string and pull the correct | |
2469 | number of chars back to compensate for the change in the | |
2470 | format specifier. */ | |
2471 | while (nnull_chars < nargs - i) | |
2472 | { | |
2473 | if (*eos == '\0') | |
2474 | nnull_chars++; | |
2475 | ||
2476 | *++sos = *++eos; | |
2477 | } | |
2478 | ||
2479 | /* Conversion between different DFP types. */ | |
2480 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
2481 | decimal_convert (param_ptr, param_len, dec, dfp_len); | |
2482 | else | |
2483 | /* If this is a non-trivial conversion, just output 0. | |
2484 | A correct converted value can be displayed by explicitly | |
2485 | casting to a DFP type. */ | |
2486 | decimal_from_string (dec, dfp_len, "0"); | |
2487 | ||
2488 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2489 | ||
2490 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2491 | ||
2492 | decimal_to_string (dfp_ptr, dfp_len, decstr); | |
1a619819 LM |
2493 | |
2494 | /* Print the DFP value. */ | |
2495 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2496 | |
1a619819 LM |
2497 | break; |
2498 | #endif | |
2499 | } | |
2500 | ||
2025a643 DJ |
2501 | case ptr_arg: |
2502 | { | |
2503 | /* We avoid the host's %p because pointers are too | |
2504 | likely to be the wrong size. The only interesting | |
2505 | modifier for %p is a width; extract that, and then | |
2506 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2507 | ||
2508 | char *p, *fmt, *fmt_p; | |
2509 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2510 | long long val = value_as_long (val_args[i]); | |
2511 | #else | |
2512 | long val = value_as_long (val_args[i]); | |
2513 | #endif | |
2514 | ||
2515 | fmt = alloca (strlen (current_substring) + 5); | |
2516 | ||
2517 | /* Copy up to the leading %. */ | |
2518 | p = current_substring; | |
2519 | fmt_p = fmt; | |
2520 | while (*p) | |
2521 | { | |
2522 | int is_percent = (*p == '%'); | |
2523 | *fmt_p++ = *p++; | |
2524 | if (is_percent) | |
2525 | { | |
2526 | if (*p == '%') | |
2527 | *fmt_p++ = *p++; | |
2528 | else | |
2529 | break; | |
2530 | } | |
2531 | } | |
2532 | ||
2533 | if (val != 0) | |
2534 | *fmt_p++ = '#'; | |
2535 | ||
2536 | /* Copy any width. */ | |
2537 | while (*p >= '0' && *p < '9') | |
2538 | *fmt_p++ = *p++; | |
2539 | ||
2540 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2541 | if (val != 0) | |
2542 | { | |
2543 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2544 | *fmt_p++ = 'l'; | |
2545 | #endif | |
2546 | *fmt_p++ = 'l'; | |
2547 | *fmt_p++ = 'x'; | |
2548 | *fmt_p++ = '\0'; | |
2549 | printf_filtered (fmt, val); | |
2550 | } | |
2551 | else | |
2552 | { | |
2553 | *fmt_p++ = 's'; | |
2554 | *fmt_p++ = '\0'; | |
2555 | printf_filtered (fmt, "(nil)"); | |
2556 | } | |
2557 | ||
2558 | break; | |
2559 | } | |
675dcf4f MK |
2560 | default: |
2561 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2562 | _("failed internal consistency check")); |
c906108c SS |
2563 | } |
2564 | /* Skip to the next substring. */ | |
2565 | current_substring += strlen (current_substring) + 1; | |
2566 | } | |
2567 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2568 | puts_filtered (last_arg); |
c906108c SS |
2569 | } |
2570 | do_cleanups (old_cleanups); | |
2571 | } | |
c906108c | 2572 | |
c906108c | 2573 | void |
fba45db2 | 2574 | _initialize_printcmd (void) |
c906108c | 2575 | { |
c94fdfd0 EZ |
2576 | struct cmd_list_element *c; |
2577 | ||
c906108c SS |
2578 | current_display_number = -1; |
2579 | ||
a3247a22 PP |
2580 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2581 | ||
c906108c | 2582 | add_info ("address", address_info, |
1bedd215 | 2583 | _("Describe where symbol SYM is stored.")); |
c906108c | 2584 | |
1bedd215 AC |
2585 | add_info ("symbol", sym_info, _("\ |
2586 | Describe what symbol is at location ADDR.\n\ | |
2587 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2588 | |
1bedd215 AC |
2589 | add_com ("x", class_vars, x_command, _("\ |
2590 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2591 | ADDRESS is an expression for the memory address to examine.\n\ |
2592 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2593 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2594 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2595 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2596 | The specified number of objects of the specified size are printed\n\ |
2597 | according to the format.\n\n\ | |
2598 | Defaults for format and size letters are those previously used.\n\ | |
2599 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2600 | with this command or \"print\".")); |
c906108c | 2601 | |
c906108c SS |
2602 | #if 0 |
2603 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2604 | _("Print line number and file of definition of variable.")); |
c906108c | 2605 | #endif |
c5aa993b | 2606 | |
1bedd215 AC |
2607 | add_info ("display", display_info, _("\ |
2608 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2609 | |
1a966eab AC |
2610 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2611 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2612 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2613 | No argument means cancel all automatic-display expressions.\n\ | |
2614 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2615 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2616 | &cmdlist); |
c906108c | 2617 | |
1bedd215 AC |
2618 | add_com ("display", class_vars, display_command, _("\ |
2619 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2620 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2621 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2622 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2623 | and examining is done as in the \"x\" command.\n\n\ | |
2624 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2625 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2626 | |
1a966eab AC |
2627 | add_cmd ("display", class_vars, enable_display, _("\ |
2628 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2629 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2630 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2631 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2632 | |
1a966eab AC |
2633 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2634 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2635 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2636 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2637 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2638 | |
1a966eab AC |
2639 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2640 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2641 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2642 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2643 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2644 | |
1bedd215 AC |
2645 | add_com ("printf", class_vars, printf_command, _("\ |
2646 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2647 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2648 | |
1bedd215 AC |
2649 | add_com ("output", class_vars, output_command, _("\ |
2650 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2651 | This is useful in user-defined commands.")); | |
c906108c | 2652 | |
1bedd215 AC |
2653 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2654 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2655 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2656 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2657 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2658 | variable in the program being debugged. EXP is any valid expression.\n\ |
2659 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2660 | \n\ | |
2661 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2662 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2663 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2664 | if (dbx_commands) |
1bedd215 AC |
2665 | add_com ("assign", class_vars, set_command, _("\ |
2666 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2667 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2668 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2669 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2670 | variable in the program being debugged. EXP is any valid expression.\n\ |
2671 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2672 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2673 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2674 | |
2675 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2676 | c = add_com ("call", class_vars, call_command, _("\ |
2677 | Call a function in the program.\n\ | |
c906108c SS |
2678 | The argument is the function name and arguments, in the notation of the\n\ |
2679 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2680 | history, if it is not void.")); |
65d12d83 | 2681 | set_cmd_completer (c, expression_completer); |
c906108c | 2682 | |
1a966eab AC |
2683 | add_cmd ("variable", class_vars, set_command, _("\ |
2684 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2685 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2686 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2687 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2688 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2689 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2690 | &setlist); |
c906108c | 2691 | |
1bedd215 AC |
2692 | c = add_com ("print", class_vars, print_command, _("\ |
2693 | Print value of expression EXP.\n\ | |
c906108c SS |
2694 | Variables accessible are those of the lexical environment of the selected\n\ |
2695 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2696 | \n\ | |
2697 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2698 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2699 | Names starting with $ refer to registers (with the values they would have\n\ |
2700 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2701 | all registers saved by frames farther in) or else to debugger\n\ |
2702 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2703 | Use assignment expressions to give values to convenience variables.\n\ |
2704 | \n\ | |
c906108c SS |
2705 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2706 | @ is a binary operator for treating consecutive data objects\n\ | |
2707 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2708 | element is FOO, whose second element is stored in the space following\n\ | |
2709 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2710 | resides in memory.\n\ |
2711 | \n\ | |
c906108c | 2712 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2713 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2714 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2715 | add_com_alias ("p", "print", class_vars, 1); |
2716 | ||
1bedd215 AC |
2717 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2718 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2719 | environment, the value is printed in its own window.")); | |
65d12d83 | 2720 | set_cmd_completer (c, expression_completer); |
c906108c | 2721 | |
35096d9d AC |
2722 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2723 | &max_symbolic_offset, _("\ | |
2724 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2725 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2726 | NULL, | |
920d2a44 | 2727 | show_max_symbolic_offset, |
35096d9d | 2728 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2729 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2730 | &print_symbol_filename, _("\ | |
2731 | Set printing of source filename and line number with <symbol>."), _("\ | |
2732 | Show printing of source filename and line number with <symbol>."), NULL, | |
2733 | NULL, | |
920d2a44 | 2734 | show_print_symbol_filename, |
5bf193a2 | 2735 | &setprintlist, &showprintlist); |
c906108c SS |
2736 | |
2737 | /* For examine/instruction a single byte quantity is specified as | |
2738 | the data. This avoids problems with value_at_lazy() requiring a | |
2739 | valid data type (and rejecting VOID). */ | |
2740 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2741 | ||
2742 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2743 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2744 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2745 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2746 | ||
2747 | } |