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 | ||
5d3729b5 | 85 | /* Default address to examine next, and associated architecture. */ |
c906108c | 86 | |
5d3729b5 | 87 | static struct gdbarch *next_gdbarch; |
c906108c SS |
88 | static CORE_ADDR next_address; |
89 | ||
a4642986 MR |
90 | /* Number of delay instructions following current disassembled insn. */ |
91 | ||
92 | static int branch_delay_insns; | |
93 | ||
c906108c SS |
94 | /* Last address examined. */ |
95 | ||
96 | static CORE_ADDR last_examine_address; | |
97 | ||
98 | /* Contents of last address examined. | |
99 | This is not valid past the end of the `x' command! */ | |
100 | ||
3d6d86c6 | 101 | static struct value *last_examine_value; |
c906108c SS |
102 | |
103 | /* Largest offset between a symbolic value and an address, that will be | |
104 | printed as `0x1234 <symbol+offset>'. */ | |
105 | ||
106 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
107 | static void |
108 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
109 | struct cmd_list_element *c, const char *value) | |
110 | { | |
111 | fprintf_filtered (file, _("\ | |
112 | The largest offset that will be printed in <symbol+1234> form is %s.\n"), | |
113 | value); | |
114 | } | |
c906108c SS |
115 | |
116 | /* Append the source filename and linenumber of the symbol when | |
117 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
118 | static int print_symbol_filename = 0; | |
920d2a44 AC |
119 | static void |
120 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
121 | struct cmd_list_element *c, const char *value) | |
122 | { | |
123 | fprintf_filtered (file, _("\ | |
124 | Printing of source filename and line number with <symbol> is %s.\n"), | |
125 | value); | |
126 | } | |
c906108c SS |
127 | |
128 | /* Number of auto-display expression currently being displayed. | |
129 | So that we can disable it if we get an error or a signal within it. | |
130 | -1 when not doing one. */ | |
131 | ||
132 | int current_display_number; | |
133 | ||
c906108c | 134 | struct display |
c5aa993b JM |
135 | { |
136 | /* Chain link to next auto-display item. */ | |
137 | struct display *next; | |
6c95b8df | 138 | |
fa8a61dc TT |
139 | /* The expression as the user typed it. */ |
140 | char *exp_string; | |
6c95b8df | 141 | |
c5aa993b JM |
142 | /* Expression to be evaluated and displayed. */ |
143 | struct expression *exp; | |
6c95b8df | 144 | |
c5aa993b JM |
145 | /* Item number of this auto-display item. */ |
146 | int number; | |
6c95b8df | 147 | |
c5aa993b JM |
148 | /* Display format specified. */ |
149 | struct format_data format; | |
6c95b8df PA |
150 | |
151 | /* Program space associated with `block'. */ | |
152 | struct program_space *pspace; | |
153 | ||
c5aa993b JM |
154 | /* Innermost block required by this expression when evaluated */ |
155 | struct block *block; | |
6c95b8df | 156 | |
c5aa993b | 157 | /* Status of this display (enabled or disabled) */ |
b5de0fa7 | 158 | int enabled_p; |
c5aa993b | 159 | }; |
c906108c SS |
160 | |
161 | /* Chain of expressions whose values should be displayed | |
162 | automatically each time the program stops. */ | |
163 | ||
164 | static struct display *display_chain; | |
165 | ||
166 | static int display_number; | |
167 | ||
168 | /* Prototypes for exported functions. */ | |
169 | ||
a14ed312 | 170 | void output_command (char *, int); |
c906108c | 171 | |
a14ed312 | 172 | void _initialize_printcmd (void); |
c906108c SS |
173 | |
174 | /* Prototypes for local functions. */ | |
175 | ||
a14ed312 | 176 | static void do_one_display (struct display *); |
c906108c | 177 | \f |
c5aa993b | 178 | |
c906108c SS |
179 | /* Decode a format specification. *STRING_PTR should point to it. |
180 | OFORMAT and OSIZE are used as defaults for the format and size | |
181 | if none are given in the format specification. | |
182 | If OSIZE is zero, then the size field of the returned value | |
183 | should be set only if a size is explicitly specified by the | |
184 | user. | |
185 | The structure returned describes all the data | |
186 | found in the specification. In addition, *STRING_PTR is advanced | |
187 | past the specification and past all whitespace following it. */ | |
188 | ||
189 | static struct format_data | |
fba45db2 | 190 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
191 | { |
192 | struct format_data val; | |
52f0bd74 | 193 | char *p = *string_ptr; |
c906108c SS |
194 | |
195 | val.format = '?'; | |
196 | val.size = '?'; | |
197 | val.count = 1; | |
a6bac58e | 198 | val.raw = 0; |
c906108c SS |
199 | |
200 | if (*p >= '0' && *p <= '9') | |
201 | val.count = atoi (p); | |
c5aa993b JM |
202 | while (*p >= '0' && *p <= '9') |
203 | p++; | |
c906108c SS |
204 | |
205 | /* Now process size or format letters that follow. */ | |
206 | ||
207 | while (1) | |
208 | { | |
209 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
210 | val.size = *p++; | |
a6bac58e TT |
211 | else if (*p == 'r') |
212 | { | |
213 | val.raw = 1; | |
214 | p++; | |
215 | } | |
c906108c SS |
216 | else if (*p >= 'a' && *p <= 'z') |
217 | val.format = *p++; | |
218 | else | |
219 | break; | |
220 | } | |
221 | ||
c5aa993b JM |
222 | while (*p == ' ' || *p == '\t') |
223 | p++; | |
c906108c SS |
224 | *string_ptr = p; |
225 | ||
226 | /* Set defaults for format and size if not specified. */ | |
227 | if (val.format == '?') | |
228 | { | |
229 | if (val.size == '?') | |
230 | { | |
231 | /* Neither has been specified. */ | |
232 | val.format = oformat; | |
233 | val.size = osize; | |
234 | } | |
235 | else | |
236 | /* If a size is specified, any format makes a reasonable | |
237 | default except 'i'. */ | |
238 | val.format = oformat == 'i' ? 'x' : oformat; | |
239 | } | |
240 | else if (val.size == '?') | |
241 | switch (val.format) | |
242 | { | |
243 | case 'a': | |
5d3729b5 UW |
244 | /* Pick the appropriate size for an address. This is deferred |
245 | until do_examine when we know the actual architecture to use. | |
246 | A special size value of 'a' is used to indicate this case. */ | |
247 | val.size = osize ? 'a' : osize; | |
c906108c SS |
248 | break; |
249 | case 'f': | |
250 | /* Floating point has to be word or giantword. */ | |
251 | if (osize == 'w' || osize == 'g') | |
252 | val.size = osize; | |
253 | else | |
254 | /* Default it to giantword if the last used size is not | |
255 | appropriate. */ | |
256 | val.size = osize ? 'g' : osize; | |
257 | break; | |
258 | case 'c': | |
259 | /* Characters default to one byte. */ | |
260 | val.size = osize ? 'b' : osize; | |
261 | break; | |
262 | default: | |
263 | /* The default is the size most recently specified. */ | |
264 | val.size = osize; | |
265 | } | |
266 | ||
267 | return val; | |
268 | } | |
269 | \f | |
79a45b7d | 270 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 271 | Do not end with a newline. |
c906108c | 272 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
273 | This is used to pad hex numbers so they line up. SIZE is 0 |
274 | for print / output and set for examine. */ | |
c906108c SS |
275 | |
276 | static void | |
79a45b7d TT |
277 | print_formatted (struct value *val, int size, |
278 | const struct value_print_options *options, | |
fba45db2 | 279 | struct ui_file *stream) |
c906108c | 280 | { |
df407dfe | 281 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
282 | int len = TYPE_LENGTH (type); |
283 | ||
284 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 285 | next_address = value_address (val) + len; |
c906108c | 286 | |
ea37ba09 | 287 | if (size) |
c906108c | 288 | { |
79a45b7d | 289 | switch (options->format) |
ea37ba09 DJ |
290 | { |
291 | case 's': | |
6c7a06a3 TT |
292 | { |
293 | struct type *elttype = value_type (val); | |
42ae5230 | 294 | next_address = (value_address (val) |
6c7a06a3 | 295 | + val_print_string (elttype, |
42ae5230 | 296 | value_address (val), -1, |
6c7a06a3 TT |
297 | stream, options)); |
298 | } | |
ea37ba09 | 299 | return; |
c906108c | 300 | |
ea37ba09 DJ |
301 | case 'i': |
302 | /* We often wrap here if there are long symbolic names. */ | |
303 | wrap_here (" "); | |
42ae5230 | 304 | next_address = (value_address (val) |
13274fc3 UW |
305 | + gdb_print_insn (get_type_arch (type), |
306 | value_address (val), stream, | |
ea37ba09 DJ |
307 | &branch_delay_insns)); |
308 | return; | |
309 | } | |
c906108c | 310 | } |
ea37ba09 | 311 | |
79a45b7d | 312 | if (options->format == 0 || options->format == 's' |
4e885b20 | 313 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
314 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
315 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
316 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
317 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
318 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 319 | value_print (val, stream, options); |
ea37ba09 DJ |
320 | else |
321 | /* User specified format, so don't look to the the type to | |
322 | tell us what to do. */ | |
323 | print_scalar_formatted (value_contents (val), type, | |
79a45b7d | 324 | options, size, stream); |
c906108c SS |
325 | } |
326 | ||
b806fb9a UW |
327 | /* Return builtin floating point type of same length as TYPE. |
328 | If no such type is found, return TYPE itself. */ | |
329 | static struct type * | |
50810684 | 330 | float_type_from_length (struct type *type) |
b806fb9a | 331 | { |
50810684 | 332 | struct gdbarch *gdbarch = get_type_arch (type); |
b806fb9a UW |
333 | const struct builtin_type *builtin = builtin_type (gdbarch); |
334 | unsigned int len = TYPE_LENGTH (type); | |
335 | ||
336 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
337 | type = builtin->builtin_float; | |
338 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
339 | type = builtin->builtin_double; | |
340 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
341 | type = builtin->builtin_long_double; | |
342 | ||
343 | return type; | |
344 | } | |
345 | ||
c906108c | 346 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
79a45b7d TT |
347 | according to OPTIONS and SIZE on STREAM. |
348 | Formats s and i are not supported at this level. | |
c906108c SS |
349 | |
350 | This is how the elements of an array or structure are printed | |
351 | with a format. */ | |
352 | ||
353 | void | |
366b1cbf | 354 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
355 | const struct value_print_options *options, |
356 | int size, struct ui_file *stream) | |
c906108c | 357 | { |
50810684 | 358 | struct gdbarch *gdbarch = get_type_arch (type); |
81cb7cc9 | 359 | LONGEST val_long = 0; |
c906108c | 360 | unsigned int len = TYPE_LENGTH (type); |
69feb676 | 361 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 362 | |
ea37ba09 DJ |
363 | /* If we get here with a string format, try again without it. Go |
364 | all the way back to the language printers, which may call us | |
365 | again. */ | |
79a45b7d | 366 | if (options->format == 's') |
ea37ba09 | 367 | { |
79a45b7d TT |
368 | struct value_print_options opts = *options; |
369 | opts.format = 0; | |
370 | opts.deref_ref = 0; | |
371 | val_print (type, valaddr, 0, 0, stream, 0, &opts, | |
d8ca156b | 372 | current_language); |
ea37ba09 DJ |
373 | return; |
374 | } | |
375 | ||
6b9acc27 JJ |
376 | if (len > sizeof(LONGEST) && |
377 | (TYPE_CODE (type) == TYPE_CODE_INT | |
378 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
379 | { | |
79a45b7d | 380 | switch (options->format) |
6b9acc27 JJ |
381 | { |
382 | case 'o': | |
d44e8473 | 383 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
384 | return; |
385 | case 'u': | |
386 | case 'd': | |
d44e8473 | 387 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
388 | return; |
389 | case 't': | |
d44e8473 | 390 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
391 | return; |
392 | case 'x': | |
d44e8473 | 393 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
394 | return; |
395 | case 'c': | |
6c7a06a3 | 396 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
397 | return; |
398 | default: | |
399 | break; | |
400 | }; | |
401 | } | |
402 | ||
79a45b7d | 403 | if (options->format != 'f') |
c906108c SS |
404 | val_long = unpack_long (type, valaddr); |
405 | ||
ef166cf4 | 406 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 407 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 408 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 409 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
69feb676 | 410 | len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 411 | |
c906108c SS |
412 | /* If we are printing it as unsigned, truncate it in case it is actually |
413 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
414 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 415 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
416 | { |
417 | if (len < sizeof (LONGEST)) | |
418 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
419 | } | |
420 | ||
79a45b7d | 421 | switch (options->format) |
c906108c SS |
422 | { |
423 | case 'x': | |
424 | if (!size) | |
425 | { | |
675dcf4f | 426 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
427 | print_longest (stream, 'x', 1, val_long); |
428 | } | |
429 | else | |
430 | switch (size) | |
431 | { | |
432 | case 'b': | |
433 | case 'h': | |
434 | case 'w': | |
435 | case 'g': | |
436 | print_longest (stream, size, 1, val_long); | |
437 | break; | |
438 | default: | |
8a3fe4f8 | 439 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
440 | } |
441 | break; | |
442 | ||
443 | case 'd': | |
444 | print_longest (stream, 'd', 1, val_long); | |
445 | break; | |
446 | ||
447 | case 'u': | |
448 | print_longest (stream, 'u', 0, val_long); | |
449 | break; | |
450 | ||
451 | case 'o': | |
452 | if (val_long) | |
453 | print_longest (stream, 'o', 1, val_long); | |
454 | else | |
455 | fprintf_filtered (stream, "0"); | |
456 | break; | |
457 | ||
458 | case 'a': | |
593de6a6 | 459 | { |
593de6a6 | 460 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
5af949e3 | 461 | print_address (gdbarch, addr, stream); |
593de6a6 | 462 | } |
c906108c SS |
463 | break; |
464 | ||
465 | case 'c': | |
79a45b7d TT |
466 | { |
467 | struct value_print_options opts = *options; | |
468 | opts.format = 0; | |
69feb676 | 469 | |
79a45b7d | 470 | if (TYPE_UNSIGNED (type)) |
69feb676 UW |
471 | type = builtin_type (gdbarch)->builtin_true_unsigned_char; |
472 | else | |
473 | type = builtin_type (gdbarch)->builtin_true_char; | |
474 | ||
475 | value_print (value_from_longest (type, val_long), stream, &opts); | |
79a45b7d | 476 | } |
c906108c SS |
477 | break; |
478 | ||
479 | case 'f': | |
50810684 | 480 | type = float_type_from_length (type); |
c906108c SS |
481 | print_floating (valaddr, type, stream); |
482 | break; | |
483 | ||
484 | case 0: | |
675dcf4f MK |
485 | internal_error (__FILE__, __LINE__, |
486 | _("failed internal consistency check")); | |
c906108c SS |
487 | |
488 | case 't': | |
489 | /* Binary; 't' stands for "two". */ | |
490 | { | |
c5aa993b JM |
491 | char bits[8 * (sizeof val_long) + 1]; |
492 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
493 | char *cp = bits; |
494 | int width; | |
495 | ||
c5aa993b JM |
496 | if (!size) |
497 | width = 8 * (sizeof val_long); | |
498 | else | |
499 | switch (size) | |
c906108c SS |
500 | { |
501 | case 'b': | |
502 | width = 8; | |
503 | break; | |
504 | case 'h': | |
505 | width = 16; | |
506 | break; | |
507 | case 'w': | |
508 | width = 32; | |
509 | break; | |
510 | case 'g': | |
511 | width = 64; | |
512 | break; | |
513 | default: | |
8a3fe4f8 | 514 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
515 | } |
516 | ||
c5aa993b JM |
517 | bits[width] = '\0'; |
518 | while (width-- > 0) | |
519 | { | |
520 | bits[width] = (val_long & 1) ? '1' : '0'; | |
521 | val_long >>= 1; | |
522 | } | |
c906108c SS |
523 | if (!size) |
524 | { | |
525 | while (*cp && *cp == '0') | |
526 | cp++; | |
527 | if (*cp == '\0') | |
528 | cp--; | |
529 | } | |
bb599908 | 530 | strcpy (buf, cp); |
306d9ac5 | 531 | fputs_filtered (buf, stream); |
c906108c SS |
532 | } |
533 | break; | |
534 | ||
535 | default: | |
79a45b7d | 536 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
537 | } |
538 | } | |
539 | ||
540 | /* Specify default address for `x' command. | |
675dcf4f | 541 | The `info lines' command uses this. */ |
c906108c SS |
542 | |
543 | void | |
8b9b9e1a | 544 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 545 | { |
8b9b9e1a UW |
546 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
547 | ||
5d3729b5 | 548 | next_gdbarch = gdbarch; |
c906108c SS |
549 | next_address = addr; |
550 | ||
551 | /* Make address available to the user as $_. */ | |
552 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 553 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
554 | } |
555 | ||
556 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
557 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
558 | Optionally also print source file and line number, if available. | |
559 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
560 | or to interpret it as a possible C++ name and convert it back to source | |
561 | form. However note that DO_DEMANGLE can be overridden by the specific | |
562 | settings of the demangle and asm_demangle variables. */ | |
563 | ||
564 | void | |
22e722e1 DJ |
565 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
566 | struct ui_file *stream, | |
675dcf4f | 567 | int do_demangle, char *leadin) |
dfcd3bfb JM |
568 | { |
569 | char *name = NULL; | |
570 | char *filename = NULL; | |
571 | int unmapped = 0; | |
572 | int offset = 0; | |
573 | int line = 0; | |
574 | ||
675dcf4f | 575 | /* Throw away both name and filename. */ |
2f9429ae AC |
576 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
577 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 578 | |
22e722e1 | 579 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 580 | &filename, &line, &unmapped)) |
2f9429ae AC |
581 | { |
582 | do_cleanups (cleanup_chain); | |
583 | return; | |
584 | } | |
dfcd3bfb JM |
585 | |
586 | fputs_filtered (leadin, stream); | |
587 | if (unmapped) | |
588 | fputs_filtered ("<*", stream); | |
589 | else | |
590 | fputs_filtered ("<", stream); | |
591 | fputs_filtered (name, stream); | |
592 | if (offset != 0) | |
593 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
594 | ||
595 | /* Append source filename and line number if desired. Give specific | |
596 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
597 | if (print_symbol_filename && filename != NULL) | |
598 | { | |
599 | if (line != -1) | |
600 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
601 | else | |
602 | fprintf_filtered (stream, " in %s", filename); | |
603 | } | |
604 | if (unmapped) | |
605 | fputs_filtered ("*>", stream); | |
606 | else | |
607 | fputs_filtered (">", stream); | |
608 | ||
609 | do_cleanups (cleanup_chain); | |
610 | } | |
611 | ||
612 | /* Given an address ADDR return all the elements needed to print the | |
613 | address in a symbolic form. NAME can be mangled or not depending | |
614 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
615 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
616 | success, when all the info in the OUT paramters is valid. Return 1 | |
617 | otherwise. */ | |
618 | int | |
22e722e1 DJ |
619 | build_address_symbolic (struct gdbarch *gdbarch, |
620 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
621 | int do_demangle, /* IN */ |
622 | char **name, /* OUT */ | |
623 | int *offset, /* OUT */ | |
624 | char **filename, /* OUT */ | |
625 | int *line, /* OUT */ | |
626 | int *unmapped) /* OUT */ | |
c906108c SS |
627 | { |
628 | struct minimal_symbol *msymbol; | |
629 | struct symbol *symbol; | |
c906108c | 630 | CORE_ADDR name_location = 0; |
714835d5 | 631 | struct obj_section *section = NULL; |
dfcd3bfb JM |
632 | char *name_temp = ""; |
633 | ||
89c83b10 | 634 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 635 | *unmapped = 0; |
c906108c | 636 | |
dfcd3bfb | 637 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 638 | mapped. */ |
c906108c SS |
639 | if (overlay_debugging) |
640 | { | |
641 | section = find_pc_overlay (addr); | |
642 | if (pc_in_unmapped_range (addr, section)) | |
643 | { | |
dfcd3bfb | 644 | *unmapped = 1; |
c906108c SS |
645 | addr = overlay_mapped_address (addr, section); |
646 | } | |
647 | } | |
648 | ||
c906108c SS |
649 | /* First try to find the address in the symbol table, then |
650 | in the minsyms. Take the closest one. */ | |
651 | ||
652 | /* This is defective in the sense that it only finds text symbols. So | |
653 | really this is kind of pointless--we should make sure that the | |
654 | minimal symbols have everything we need (by changing that we could | |
655 | save some memory, but for many debug format--ELF/DWARF or | |
656 | anything/stabs--it would be inconvenient to eliminate those minimal | |
657 | symbols anyway). */ | |
658 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
659 | symbol = find_pc_sect_function (addr, section); | |
660 | ||
661 | if (symbol) | |
662 | { | |
22e722e1 DJ |
663 | /* If this is a function (i.e. a code address), strip out any |
664 | non-address bits. For instance, display a pointer to the | |
665 | first instruction of a Thumb function as <function>; the | |
666 | second instruction will be <function+2>, even though the | |
667 | pointer is <function+3>. This matches the ISA behavior. */ | |
668 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
669 | ||
c906108c | 670 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 671 | if (do_demangle || asm_demangle) |
de5ad195 | 672 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 673 | else |
3567439c | 674 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
675 | } |
676 | ||
677 | if (msymbol != NULL) | |
678 | { | |
679 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
680 | { | |
681 | /* The msymbol is closer to the address than the symbol; | |
682 | use the msymbol instead. */ | |
683 | symbol = 0; | |
c906108c | 684 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 685 | if (do_demangle || asm_demangle) |
de5ad195 | 686 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 687 | else |
3567439c | 688 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
689 | } |
690 | } | |
691 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 692 | return 1; |
c906108c | 693 | |
c906108c SS |
694 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
695 | ||
696 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
697 | CORE_ADDR. But when we detect unsigned wraparound in the | |
698 | CORE_ADDR math, we ignore this test and print the offset, | |
699 | because addr+max_symbolic_offset has wrapped through the end | |
700 | of the address space back to the beginning, giving bogus comparison. */ | |
701 | if (addr > name_location + max_symbolic_offset | |
702 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 703 | return 1; |
c906108c | 704 | |
dfcd3bfb JM |
705 | *offset = addr - name_location; |
706 | ||
707 | *name = xstrdup (name_temp); | |
c906108c | 708 | |
c906108c SS |
709 | if (print_symbol_filename) |
710 | { | |
711 | struct symtab_and_line sal; | |
712 | ||
713 | sal = find_pc_sect_line (addr, section, 0); | |
714 | ||
715 | if (sal.symtab) | |
dfcd3bfb JM |
716 | { |
717 | *filename = xstrdup (sal.symtab->filename); | |
718 | *line = sal.line; | |
719 | } | |
c906108c | 720 | } |
dfcd3bfb | 721 | return 0; |
c906108c SS |
722 | } |
723 | ||
c906108c SS |
724 | |
725 | /* Print address ADDR symbolically on STREAM. | |
726 | First print it as a number. Then perhaps print | |
727 | <SYMBOL + OFFSET> after the number. */ | |
728 | ||
729 | void | |
5af949e3 UW |
730 | print_address (struct gdbarch *gdbarch, |
731 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 732 | { |
5af949e3 | 733 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 734 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
735 | } |
736 | ||
2b28d209 PP |
737 | /* Return a prefix for instruction address: |
738 | "=> " for current instruction, else " ". */ | |
739 | ||
740 | const char * | |
741 | pc_prefix (CORE_ADDR addr) | |
742 | { | |
743 | if (has_stack_frames ()) | |
744 | { | |
745 | struct frame_info *frame; | |
746 | CORE_ADDR pc; | |
747 | ||
748 | frame = get_selected_frame (NULL); | |
749 | pc = get_frame_pc (frame); | |
750 | ||
751 | if (pc == addr) | |
752 | return "=> "; | |
753 | } | |
754 | return " "; | |
755 | } | |
756 | ||
c906108c SS |
757 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
758 | controls whether to print the symbolic name "raw" or demangled. | |
759 | Global setting "addressprint" controls whether to print hex address | |
760 | or not. */ | |
761 | ||
762 | void | |
5af949e3 UW |
763 | print_address_demangle (struct gdbarch *gdbarch, CORE_ADDR addr, |
764 | struct ui_file *stream, int do_demangle) | |
c906108c | 765 | { |
79a45b7d TT |
766 | struct value_print_options opts; |
767 | get_user_print_options (&opts); | |
c906108c SS |
768 | if (addr == 0) |
769 | { | |
770 | fprintf_filtered (stream, "0"); | |
771 | } | |
79a45b7d | 772 | else if (opts.addressprint) |
c906108c | 773 | { |
5af949e3 | 774 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 775 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
776 | } |
777 | else | |
778 | { | |
22e722e1 | 779 | print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c SS |
780 | } |
781 | } | |
782 | \f | |
783 | ||
c906108c SS |
784 | /* Examine data at address ADDR in format FMT. |
785 | Fetch it from memory and print on gdb_stdout. */ | |
786 | ||
787 | static void | |
5d3729b5 | 788 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 789 | { |
52f0bd74 AC |
790 | char format = 0; |
791 | char size; | |
792 | int count = 1; | |
c906108c | 793 | struct type *val_type = NULL; |
52f0bd74 AC |
794 | int i; |
795 | int maxelts; | |
79a45b7d | 796 | struct value_print_options opts; |
c906108c SS |
797 | |
798 | format = fmt.format; | |
799 | size = fmt.size; | |
800 | count = fmt.count; | |
5d3729b5 | 801 | next_gdbarch = gdbarch; |
c906108c | 802 | next_address = addr; |
c906108c SS |
803 | |
804 | /* String or instruction format implies fetch single bytes | |
805 | regardless of the specified size. */ | |
806 | if (format == 's' || format == 'i') | |
807 | size = 'b'; | |
808 | ||
5d3729b5 UW |
809 | if (size == 'a') |
810 | { | |
811 | /* Pick the appropriate size for an address. */ | |
812 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
813 | size = 'g'; | |
814 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
815 | size = 'w'; | |
816 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
817 | size = 'h'; | |
818 | else | |
819 | /* Bad value for gdbarch_ptr_bit. */ | |
820 | internal_error (__FILE__, __LINE__, | |
821 | _("failed internal consistency check")); | |
822 | } | |
823 | ||
824 | if (size == 'b') | |
df4df182 | 825 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 826 | else if (size == 'h') |
df4df182 | 827 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 828 | else if (size == 'w') |
df4df182 | 829 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 830 | else if (size == 'g') |
df4df182 | 831 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c SS |
832 | |
833 | maxelts = 8; | |
834 | if (size == 'w') | |
835 | maxelts = 4; | |
836 | if (size == 'g') | |
837 | maxelts = 2; | |
838 | if (format == 's' || format == 'i') | |
839 | maxelts = 1; | |
840 | ||
79a45b7d TT |
841 | get_formatted_print_options (&opts, format); |
842 | ||
c906108c SS |
843 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
844 | with the address of the next one at the start of each line. */ | |
845 | ||
846 | while (count > 0) | |
847 | { | |
848 | QUIT; | |
2b28d209 PP |
849 | if (format == 'i') |
850 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 851 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
852 | printf_filtered (":"); |
853 | for (i = maxelts; | |
854 | i > 0 && count > 0; | |
855 | i--, count--) | |
856 | { | |
857 | printf_filtered ("\t"); | |
858 | /* Note that print_formatted sets next_address for the next | |
859 | object. */ | |
860 | last_examine_address = next_address; | |
861 | ||
862 | if (last_examine_value) | |
863 | value_free (last_examine_value); | |
864 | ||
865 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
866 | Instead, to avoid the possibility of a fetched value not |
867 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
868 | uses it. When examining an instruction stream, the |
869 | disassembler will perform its own memory fetch using just | |
870 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
871 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
872 | is left with the byte sequence from the last complete | |
873 | instruction fetched from memory? */ | |
00a4c844 | 874 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
875 | |
876 | if (last_examine_value) | |
877 | release_value (last_examine_value); | |
878 | ||
79a45b7d | 879 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
880 | |
881 | /* Display any branch delay slots following the final insn. */ | |
882 | if (format == 'i' && count == 1) | |
883 | count += branch_delay_insns; | |
c906108c SS |
884 | } |
885 | printf_filtered ("\n"); | |
886 | gdb_flush (gdb_stdout); | |
887 | } | |
888 | } | |
889 | \f | |
890 | static void | |
fba45db2 | 891 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
892 | { |
893 | if (fmt.size != 0) | |
8a3fe4f8 | 894 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 895 | if (fmt.count != 1) |
8a3fe4f8 | 896 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 897 | cmdname); |
ea37ba09 | 898 | if (fmt.format == 'i') |
8a3fe4f8 | 899 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
900 | fmt.format, cmdname); |
901 | } | |
902 | ||
675dcf4f | 903 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 904 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 905 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
906 | |
907 | static void | |
fba45db2 | 908 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
909 | { |
910 | struct expression *expr; | |
52f0bd74 AC |
911 | struct cleanup *old_chain = 0; |
912 | char format = 0; | |
3d6d86c6 | 913 | struct value *val; |
c906108c SS |
914 | struct format_data fmt; |
915 | int cleanup = 0; | |
916 | ||
c906108c SS |
917 | if (exp && *exp == '/') |
918 | { | |
919 | exp++; | |
920 | fmt = decode_format (&exp, last_format, 0); | |
921 | validate_format (fmt, "print"); | |
922 | last_format = format = fmt.format; | |
923 | } | |
924 | else | |
925 | { | |
926 | fmt.count = 1; | |
927 | fmt.format = 0; | |
928 | fmt.size = 0; | |
a6bac58e | 929 | fmt.raw = 0; |
c906108c SS |
930 | } |
931 | ||
932 | if (exp && *exp) | |
933 | { | |
c906108c SS |
934 | struct type *type; |
935 | expr = parse_expression (exp); | |
c13c43fd | 936 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
937 | cleanup = 1; |
938 | val = evaluate_expression (expr); | |
c906108c SS |
939 | } |
940 | else | |
941 | val = access_value_history (0); | |
942 | ||
df407dfe AC |
943 | if (voidprint || (val && value_type (val) && |
944 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 945 | { |
79a45b7d | 946 | struct value_print_options opts; |
c906108c SS |
947 | int histindex = record_latest_value (val); |
948 | ||
949 | if (histindex >= 0) | |
df407dfe | 950 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 951 | else |
df407dfe | 952 | annotate_value_begin (value_type (val)); |
c906108c SS |
953 | |
954 | if (inspect) | |
675dcf4f MK |
955 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
956 | exp, histindex); | |
c5aa993b JM |
957 | else if (histindex >= 0) |
958 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
959 | |
960 | if (histindex >= 0) | |
961 | annotate_value_history_value (); | |
962 | ||
79a45b7d TT |
963 | get_formatted_print_options (&opts, format); |
964 | opts.inspect_it = inspect; | |
a6bac58e | 965 | opts.raw = fmt.raw; |
79a45b7d TT |
966 | |
967 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
968 | printf_filtered ("\n"); |
969 | ||
970 | if (histindex >= 0) | |
971 | annotate_value_history_end (); | |
972 | else | |
973 | annotate_value_end (); | |
974 | ||
975 | if (inspect) | |
c5aa993b | 976 | printf_unfiltered ("\") )\030"); |
c906108c SS |
977 | } |
978 | ||
979 | if (cleanup) | |
980 | do_cleanups (old_chain); | |
c906108c SS |
981 | } |
982 | ||
c906108c | 983 | static void |
fba45db2 | 984 | print_command (char *exp, int from_tty) |
c906108c SS |
985 | { |
986 | print_command_1 (exp, 0, 1); | |
987 | } | |
988 | ||
675dcf4f | 989 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 990 | static void |
fba45db2 | 991 | inspect_command (char *exp, int from_tty) |
c906108c SS |
992 | { |
993 | extern int epoch_interface; | |
994 | ||
995 | print_command_1 (exp, epoch_interface, 1); | |
996 | } | |
997 | ||
675dcf4f | 998 | /* Same as print, except it doesn't print void results. */ |
c906108c | 999 | static void |
fba45db2 | 1000 | call_command (char *exp, int from_tty) |
c906108c SS |
1001 | { |
1002 | print_command_1 (exp, 0, 0); | |
1003 | } | |
1004 | ||
c906108c | 1005 | void |
fba45db2 | 1006 | output_command (char *exp, int from_tty) |
c906108c SS |
1007 | { |
1008 | struct expression *expr; | |
52f0bd74 AC |
1009 | struct cleanup *old_chain; |
1010 | char format = 0; | |
3d6d86c6 | 1011 | struct value *val; |
c906108c | 1012 | struct format_data fmt; |
79a45b7d | 1013 | struct value_print_options opts; |
c906108c | 1014 | |
777ea8f1 | 1015 | fmt.size = 0; |
a6bac58e | 1016 | fmt.raw = 0; |
777ea8f1 | 1017 | |
c906108c SS |
1018 | if (exp && *exp == '/') |
1019 | { | |
1020 | exp++; | |
1021 | fmt = decode_format (&exp, 0, 0); | |
1022 | validate_format (fmt, "output"); | |
1023 | format = fmt.format; | |
1024 | } | |
1025 | ||
1026 | expr = parse_expression (exp); | |
c13c43fd | 1027 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1028 | |
1029 | val = evaluate_expression (expr); | |
1030 | ||
df407dfe | 1031 | annotate_value_begin (value_type (val)); |
c906108c | 1032 | |
79a45b7d | 1033 | get_formatted_print_options (&opts, format); |
a6bac58e | 1034 | opts.raw = fmt.raw; |
79a45b7d | 1035 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1036 | |
1037 | annotate_value_end (); | |
1038 | ||
2acceee2 JM |
1039 | wrap_here (""); |
1040 | gdb_flush (gdb_stdout); | |
1041 | ||
c906108c SS |
1042 | do_cleanups (old_chain); |
1043 | } | |
1044 | ||
c906108c | 1045 | static void |
fba45db2 | 1046 | set_command (char *exp, int from_tty) |
c906108c SS |
1047 | { |
1048 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1049 | struct cleanup *old_chain = |
c13c43fd | 1050 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
1051 | evaluate_expression (expr); |
1052 | do_cleanups (old_chain); | |
1053 | } | |
1054 | ||
c906108c | 1055 | static void |
fba45db2 | 1056 | sym_info (char *arg, int from_tty) |
c906108c SS |
1057 | { |
1058 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1059 | struct objfile *objfile; |
1060 | struct obj_section *osect; | |
c5aa993b JM |
1061 | CORE_ADDR addr, sect_addr; |
1062 | int matches = 0; | |
1063 | unsigned int offset; | |
c906108c SS |
1064 | |
1065 | if (!arg) | |
e2e0b3e5 | 1066 | error_no_arg (_("address")); |
c906108c SS |
1067 | |
1068 | addr = parse_and_eval_address (arg); | |
1069 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1070 | { |
94277a38 DJ |
1071 | /* Only process each object file once, even if there's a separate |
1072 | debug file. */ | |
1073 | if (objfile->separate_debug_objfile_backlink) | |
1074 | continue; | |
1075 | ||
714835d5 | 1076 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1077 | |
f1f6aadf PA |
1078 | if (obj_section_addr (osect) <= sect_addr |
1079 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1080 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1081 | { |
c14c28ba | 1082 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1083 | char *loc_string; |
1084 | struct cleanup *old_chain; | |
c14c28ba | 1085 | |
c5aa993b JM |
1086 | matches = 1; |
1087 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1088 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1089 | sec_name = osect->the_bfd_section->name; | |
1090 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1091 | ||
e2fd701e DE |
1092 | /* Don't print the offset if it is zero. |
1093 | We assume there's no need to handle i18n of "sym + offset". */ | |
1094 | if (offset) | |
549ba0f8 | 1095 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1096 | else |
549ba0f8 | 1097 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1098 | |
1099 | /* Use a cleanup to free loc_string in case the user quits | |
1100 | a pagination request inside printf_filtered. */ | |
1101 | old_chain = make_cleanup (xfree, loc_string); | |
1102 | ||
c14c28ba PP |
1103 | gdb_assert (osect->objfile && osect->objfile->name); |
1104 | obj_name = osect->objfile->name; | |
1105 | ||
1106 | if (MULTI_OBJFILE_P ()) | |
1107 | if (pc_in_unmapped_range (addr, osect)) | |
1108 | if (section_is_overlay (osect)) | |
e2fd701e | 1109 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1110 | "%s overlay section %s of %s\n"), |
e2fd701e | 1111 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1112 | else |
e2fd701e | 1113 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1114 | "section %s of %s\n"), |
e2fd701e | 1115 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1116 | else |
1117 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1118 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1119 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1120 | else |
e2fd701e DE |
1121 | printf_filtered (_("%s in section %s of %s\n"), |
1122 | loc_string, sec_name, obj_name); | |
c5aa993b | 1123 | else |
c14c28ba PP |
1124 | if (pc_in_unmapped_range (addr, osect)) |
1125 | if (section_is_overlay (osect)) | |
e2fd701e | 1126 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1127 | "section %s\n"), |
e2fd701e | 1128 | loc_string, mapped, sec_name); |
c14c28ba | 1129 | else |
e2fd701e DE |
1130 | printf_filtered (_("%s in load address range of section %s\n"), |
1131 | loc_string, sec_name); | |
c14c28ba PP |
1132 | else |
1133 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1134 | printf_filtered (_("%s in %s overlay section %s\n"), |
1135 | loc_string, mapped, sec_name); | |
c14c28ba | 1136 | else |
e2fd701e DE |
1137 | printf_filtered (_("%s in section %s\n"), |
1138 | loc_string, sec_name); | |
1139 | ||
1140 | do_cleanups (old_chain); | |
c5aa993b JM |
1141 | } |
1142 | } | |
c906108c | 1143 | if (matches == 0) |
a3f17187 | 1144 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1145 | } |
1146 | ||
c906108c | 1147 | static void |
fba45db2 | 1148 | address_info (char *exp, int from_tty) |
c906108c | 1149 | { |
768a979c UW |
1150 | struct gdbarch *gdbarch; |
1151 | int regno; | |
52f0bd74 AC |
1152 | struct symbol *sym; |
1153 | struct minimal_symbol *msymbol; | |
1154 | long val; | |
714835d5 | 1155 | struct obj_section *section; |
c906108c SS |
1156 | CORE_ADDR load_addr; |
1157 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1158 | if exp is a field of `this'. */ | |
1159 | ||
1160 | if (exp == 0) | |
8a3fe4f8 | 1161 | error (_("Argument required.")); |
c906108c | 1162 | |
176620f1 | 1163 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
2570f2b7 | 1164 | &is_a_field_of_this); |
c906108c SS |
1165 | if (sym == NULL) |
1166 | { | |
1167 | if (is_a_field_of_this) | |
1168 | { | |
1169 | printf_filtered ("Symbol \""); | |
1170 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1171 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1172 | printf_filtered ("\" is a field of the local class variable "); |
1173 | if (current_language->la_language == language_objc) | |
2625d86c | 1174 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1175 | else |
2625d86c | 1176 | printf_filtered ("`this'\n"); |
c906108c SS |
1177 | return; |
1178 | } | |
1179 | ||
1180 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1181 | ||
1182 | if (msymbol != NULL) | |
1183 | { | |
5af949e3 | 1184 | gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
c906108c SS |
1185 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); |
1186 | ||
1187 | printf_filtered ("Symbol \""); | |
1188 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1189 | current_language->la_language, DMGL_ANSI); | |
1190 | printf_filtered ("\" is at "); | |
5af949e3 | 1191 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1192 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1193 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1194 | if (section_is_overlay (section)) |
1195 | { | |
1196 | load_addr = overlay_unmapped_address (load_addr, section); | |
1197 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1198 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1199 | printf_filtered (" in overlay section %s", |
1200 | section->the_bfd_section->name); | |
c906108c SS |
1201 | } |
1202 | printf_filtered (".\n"); | |
1203 | } | |
1204 | else | |
8a3fe4f8 | 1205 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1206 | return; |
1207 | } | |
1208 | ||
1209 | printf_filtered ("Symbol \""); | |
3567439c | 1210 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1211 | current_language->la_language, DMGL_ANSI); |
1212 | printf_filtered ("\" is "); | |
c5aa993b | 1213 | val = SYMBOL_VALUE (sym); |
714835d5 | 1214 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1215 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1216 | |
1217 | switch (SYMBOL_CLASS (sym)) | |
1218 | { | |
1219 | case LOC_CONST: | |
1220 | case LOC_CONST_BYTES: | |
1221 | printf_filtered ("constant"); | |
1222 | break; | |
1223 | ||
1224 | case LOC_LABEL: | |
1225 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1226 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1227 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1228 | if (section_is_overlay (section)) |
1229 | { | |
1230 | load_addr = overlay_unmapped_address (load_addr, section); | |
1231 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1232 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1233 | printf_filtered (" in overlay section %s", |
1234 | section->the_bfd_section->name); | |
c906108c SS |
1235 | } |
1236 | break; | |
1237 | ||
4c2df51b | 1238 | case LOC_COMPUTED: |
a67af2b9 | 1239 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1240 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1241 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1242 | function) location in a function's symbol. Oops! For the |
1243 | moment enable this when/where applicable. */ | |
768a979c | 1244 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
4c2df51b DJ |
1245 | break; |
1246 | ||
c906108c | 1247 | case LOC_REGISTER: |
768a979c UW |
1248 | /* GDBARCH is the architecture associated with the objfile the symbol |
1249 | is defined in; the target architecture may be different, and may | |
1250 | provide additional registers. However, we do not know the target | |
1251 | architecture at this point. We assume the objfile architecture | |
1252 | will contain all the standard registers that occur in debug info | |
1253 | in that objfile. */ | |
1254 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1255 | ||
2a2d4dc3 AS |
1256 | if (SYMBOL_IS_ARGUMENT (sym)) |
1257 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1258 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1259 | else |
1260 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1261 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1262 | break; |
1263 | ||
1264 | case LOC_STATIC: | |
a3f17187 | 1265 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1266 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1267 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1268 | if (section_is_overlay (section)) |
1269 | { | |
1270 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1271 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1272 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1273 | printf_filtered (_(" in overlay section %s"), |
1274 | section->the_bfd_section->name); | |
c906108c SS |
1275 | } |
1276 | break; | |
1277 | ||
c906108c | 1278 | case LOC_REGPARM_ADDR: |
768a979c UW |
1279 | /* Note comment at LOC_REGISTER. */ |
1280 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1281 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1282 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1283 | break; |
1284 | ||
1285 | case LOC_ARG: | |
a3f17187 | 1286 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1287 | break; |
1288 | ||
c906108c | 1289 | case LOC_LOCAL: |
a3f17187 | 1290 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1291 | break; |
1292 | ||
1293 | case LOC_REF_ARG: | |
a3f17187 | 1294 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1295 | break; |
1296 | ||
c906108c | 1297 | case LOC_TYPEDEF: |
a3f17187 | 1298 | printf_filtered (_("a typedef")); |
c906108c SS |
1299 | break; |
1300 | ||
1301 | case LOC_BLOCK: | |
a3f17187 | 1302 | printf_filtered (_("a function at address ")); |
675dcf4f | 1303 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1304 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1305 | if (section_is_overlay (section)) |
1306 | { | |
1307 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1308 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1309 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1310 | printf_filtered (_(" in overlay section %s"), |
1311 | section->the_bfd_section->name); | |
c906108c SS |
1312 | } |
1313 | break; | |
1314 | ||
1315 | case LOC_UNRESOLVED: | |
1316 | { | |
1317 | struct minimal_symbol *msym; | |
1318 | ||
3567439c | 1319 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1320 | if (msym == NULL) |
1321 | printf_filtered ("unresolved"); | |
1322 | else | |
1323 | { | |
714835d5 | 1324 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1325 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1326 | |
1327 | if (section | |
1328 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1329 | printf_filtered (_("a thread-local variable at offset %s " | |
1330 | "in the thread-local storage for `%s'"), | |
5af949e3 UW |
1331 | paddress (gdbarch, load_addr), |
1332 | section->objfile->name); | |
e0740f77 | 1333 | else |
c906108c | 1334 | { |
e0740f77 | 1335 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1336 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1337 | if (section_is_overlay (section)) |
1338 | { | |
1339 | load_addr = overlay_unmapped_address (load_addr, section); | |
1340 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1341 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1342 | printf_filtered (_(" in overlay section %s"), |
1343 | section->the_bfd_section->name); | |
1344 | } | |
c906108c SS |
1345 | } |
1346 | } | |
1347 | } | |
1348 | break; | |
1349 | ||
c906108c | 1350 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1351 | printf_filtered (_("optimized out")); |
c906108c | 1352 | break; |
c5aa993b | 1353 | |
c906108c | 1354 | default: |
a3f17187 | 1355 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1356 | break; |
1357 | } | |
1358 | printf_filtered (".\n"); | |
1359 | } | |
1360 | \f | |
675dcf4f MK |
1361 | |
1362 | static void | |
fba45db2 | 1363 | x_command (char *exp, int from_tty) |
c906108c SS |
1364 | { |
1365 | struct expression *expr; | |
1366 | struct format_data fmt; | |
1367 | struct cleanup *old_chain; | |
1368 | struct value *val; | |
1369 | ||
a6bac58e | 1370 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1371 | fmt.size = last_size; |
1372 | fmt.count = 1; | |
a6bac58e | 1373 | fmt.raw = 0; |
c906108c SS |
1374 | |
1375 | if (exp && *exp == '/') | |
1376 | { | |
1377 | exp++; | |
1378 | fmt = decode_format (&exp, last_format, last_size); | |
1379 | } | |
1380 | ||
1381 | /* If we have an expression, evaluate it and use it as the address. */ | |
1382 | ||
1383 | if (exp != 0 && *exp != 0) | |
1384 | { | |
1385 | expr = parse_expression (exp); | |
675dcf4f MK |
1386 | /* Cause expression not to be there any more if this command is |
1387 | repeated with Newline. But don't clobber a user-defined | |
1388 | command's definition. */ | |
c906108c SS |
1389 | if (from_tty) |
1390 | *exp = 0; | |
c13c43fd | 1391 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1392 | val = evaluate_expression (expr); |
df407dfe | 1393 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1394 | val = value_ind (val); |
1395 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1396 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1397 | if (/* last_format == 'i' && */ |
df407dfe | 1398 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1399 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1400 | next_address = value_address (val); |
c906108c | 1401 | else |
1aa20aa8 | 1402 | next_address = value_as_address (val); |
5d3729b5 UW |
1403 | |
1404 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1405 | do_cleanups (old_chain); |
1406 | } | |
1407 | ||
5d3729b5 UW |
1408 | if (!next_gdbarch) |
1409 | error_no_arg (_("starting display address")); | |
1410 | ||
1411 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1412 | |
675dcf4f MK |
1413 | /* If the examine succeeds, we remember its size and format for next |
1414 | time. */ | |
c906108c SS |
1415 | last_size = fmt.size; |
1416 | last_format = fmt.format; | |
1417 | ||
1418 | /* Set a couple of internal variables if appropriate. */ | |
1419 | if (last_examine_value) | |
1420 | { | |
1421 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1422 | the correct pointer type. */ |
4478b372 | 1423 | struct type *pointer_type |
df407dfe | 1424 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1425 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1426 | value_from_pointer (pointer_type, |
1427 | last_examine_address)); | |
c5aa993b | 1428 | |
675dcf4f MK |
1429 | /* Make contents of last address examined available to the user |
1430 | as $__. If the last value has not been fetched from memory | |
1431 | then don't fetch it now; instead mark it by voiding the $__ | |
1432 | variable. */ | |
d69fe07e | 1433 | if (value_lazy (last_examine_value)) |
4fa62494 | 1434 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1435 | else |
1436 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1437 | } | |
1438 | } | |
c906108c | 1439 | \f |
c5aa993b | 1440 | |
c906108c SS |
1441 | /* Add an expression to the auto-display chain. |
1442 | Specify the expression. */ | |
1443 | ||
1444 | static void | |
fba45db2 | 1445 | display_command (char *exp, int from_tty) |
c906108c SS |
1446 | { |
1447 | struct format_data fmt; | |
52f0bd74 AC |
1448 | struct expression *expr; |
1449 | struct display *new; | |
c906108c SS |
1450 | int display_it = 1; |
1451 | ||
1452 | #if defined(TUI) | |
021e7609 AC |
1453 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1454 | `tui_version'. */ | |
fd33e6cb | 1455 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1456 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1457 | #endif |
1458 | ||
1459 | if (display_it) | |
1460 | { | |
1461 | if (exp == 0) | |
1462 | { | |
1463 | do_displays (); | |
1464 | return; | |
1465 | } | |
1466 | ||
1467 | if (*exp == '/') | |
1468 | { | |
1469 | exp++; | |
1470 | fmt = decode_format (&exp, 0, 0); | |
1471 | if (fmt.size && fmt.format == 0) | |
1472 | fmt.format = 'x'; | |
1473 | if (fmt.format == 'i' || fmt.format == 's') | |
1474 | fmt.size = 'b'; | |
1475 | } | |
1476 | else | |
1477 | { | |
1478 | fmt.format = 0; | |
1479 | fmt.size = 0; | |
1480 | fmt.count = 0; | |
a6bac58e | 1481 | fmt.raw = 0; |
c906108c SS |
1482 | } |
1483 | ||
a3247a22 | 1484 | innermost_block = NULL; |
c906108c SS |
1485 | expr = parse_expression (exp); |
1486 | ||
1487 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1488 | ||
fa8a61dc | 1489 | new->exp_string = xstrdup (exp); |
c906108c SS |
1490 | new->exp = expr; |
1491 | new->block = innermost_block; | |
6c95b8df | 1492 | new->pspace = current_program_space; |
c906108c SS |
1493 | new->next = display_chain; |
1494 | new->number = ++display_number; | |
1495 | new->format = fmt; | |
b5de0fa7 | 1496 | new->enabled_p = 1; |
c906108c SS |
1497 | display_chain = new; |
1498 | ||
1499 | if (from_tty && target_has_execution) | |
1500 | do_one_display (new); | |
1501 | ||
1502 | dont_repeat (); | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | static void | |
fba45db2 | 1507 | free_display (struct display *d) |
c906108c | 1508 | { |
fa8a61dc | 1509 | xfree (d->exp_string); |
b8c9b27d KB |
1510 | xfree (d->exp); |
1511 | xfree (d); | |
c906108c SS |
1512 | } |
1513 | ||
675dcf4f MK |
1514 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1515 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1516 | |
1517 | void | |
fba45db2 | 1518 | clear_displays (void) |
c906108c | 1519 | { |
52f0bd74 | 1520 | struct display *d; |
c906108c SS |
1521 | |
1522 | while ((d = display_chain) != NULL) | |
1523 | { | |
c906108c | 1524 | display_chain = d->next; |
fa8a61dc | 1525 | free_display (d); |
c906108c SS |
1526 | } |
1527 | } | |
1528 | ||
1529 | /* Delete the auto-display number NUM. */ | |
1530 | ||
1531 | static void | |
fba45db2 | 1532 | delete_display (int num) |
c906108c | 1533 | { |
52f0bd74 | 1534 | struct display *d1, *d; |
c906108c SS |
1535 | |
1536 | if (!display_chain) | |
8a3fe4f8 | 1537 | error (_("No display number %d."), num); |
c906108c SS |
1538 | |
1539 | if (display_chain->number == num) | |
1540 | { | |
1541 | d1 = display_chain; | |
1542 | display_chain = d1->next; | |
1543 | free_display (d1); | |
1544 | } | |
1545 | else | |
c5aa993b | 1546 | for (d = display_chain;; d = d->next) |
c906108c SS |
1547 | { |
1548 | if (d->next == 0) | |
8a3fe4f8 | 1549 | error (_("No display number %d."), num); |
c906108c SS |
1550 | if (d->next->number == num) |
1551 | { | |
1552 | d1 = d->next; | |
1553 | d->next = d1->next; | |
1554 | free_display (d1); | |
1555 | break; | |
1556 | } | |
1557 | } | |
1558 | } | |
1559 | ||
1560 | /* Delete some values from the auto-display chain. | |
1561 | Specify the element numbers. */ | |
1562 | ||
1563 | static void | |
fba45db2 | 1564 | undisplay_command (char *args, int from_tty) |
c906108c | 1565 | { |
52f0bd74 AC |
1566 | char *p = args; |
1567 | char *p1; | |
1568 | int num; | |
c906108c SS |
1569 | |
1570 | if (args == 0) | |
1571 | { | |
9e2f0ad4 | 1572 | if (query (_("Delete all auto-display expressions? "))) |
c906108c SS |
1573 | clear_displays (); |
1574 | dont_repeat (); | |
1575 | return; | |
1576 | } | |
1577 | ||
1578 | while (*p) | |
1579 | { | |
1580 | p1 = p; | |
c5aa993b JM |
1581 | while (*p1 >= '0' && *p1 <= '9') |
1582 | p1++; | |
c906108c | 1583 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1584 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1585 | |
1586 | num = atoi (p); | |
1587 | ||
1588 | delete_display (num); | |
1589 | ||
1590 | p = p1; | |
c5aa993b JM |
1591 | while (*p == ' ' || *p == '\t') |
1592 | p++; | |
c906108c SS |
1593 | } |
1594 | dont_repeat (); | |
1595 | } | |
1596 | ||
1597 | /* Display a single auto-display. | |
1598 | Do nothing if the display cannot be printed in the current context, | |
1599 | or if the display is disabled. */ | |
1600 | ||
1601 | static void | |
fba45db2 | 1602 | do_one_display (struct display *d) |
c906108c SS |
1603 | { |
1604 | int within_current_scope; | |
1605 | ||
b5de0fa7 | 1606 | if (d->enabled_p == 0) |
c906108c SS |
1607 | return; |
1608 | ||
a3247a22 PP |
1609 | if (d->exp == NULL) |
1610 | { | |
1611 | volatile struct gdb_exception ex; | |
1612 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1613 | { | |
1614 | innermost_block = NULL; | |
1615 | d->exp = parse_expression (d->exp_string); | |
1616 | d->block = innermost_block; | |
1617 | } | |
1618 | if (ex.reason < 0) | |
1619 | { | |
1620 | /* Can't re-parse the expression. Disable this display item. */ | |
1621 | d->enabled_p = 0; | |
1622 | warning (_("Unable to display \"%s\": %s"), | |
1623 | d->exp_string, ex.message); | |
1624 | return; | |
1625 | } | |
1626 | } | |
1627 | ||
c906108c | 1628 | if (d->block) |
6c95b8df PA |
1629 | { |
1630 | if (d->pspace == current_program_space) | |
1631 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1632 | else | |
1633 | within_current_scope = 0; | |
1634 | } | |
c906108c SS |
1635 | else |
1636 | within_current_scope = 1; | |
1637 | if (!within_current_scope) | |
1638 | return; | |
1639 | ||
1640 | current_display_number = d->number; | |
1641 | ||
1642 | annotate_display_begin (); | |
1643 | printf_filtered ("%d", d->number); | |
1644 | annotate_display_number_end (); | |
1645 | printf_filtered (": "); | |
1646 | if (d->format.size) | |
1647 | { | |
1648 | CORE_ADDR addr; | |
3d6d86c6 | 1649 | struct value *val; |
c906108c SS |
1650 | |
1651 | annotate_display_format (); | |
1652 | ||
1653 | printf_filtered ("x/"); | |
1654 | if (d->format.count != 1) | |
1655 | printf_filtered ("%d", d->format.count); | |
1656 | printf_filtered ("%c", d->format.format); | |
1657 | if (d->format.format != 'i' && d->format.format != 's') | |
1658 | printf_filtered ("%c", d->format.size); | |
1659 | printf_filtered (" "); | |
1660 | ||
1661 | annotate_display_expression (); | |
1662 | ||
fa8a61dc | 1663 | puts_filtered (d->exp_string); |
c906108c SS |
1664 | annotate_display_expression_end (); |
1665 | ||
6a2eb474 | 1666 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1667 | printf_filtered ("\n"); |
1668 | else | |
1669 | printf_filtered (" "); | |
c5aa993b | 1670 | |
c906108c | 1671 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1672 | addr = value_as_address (val); |
c906108c | 1673 | if (d->format.format == 'i') |
d80b854b | 1674 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); |
c906108c SS |
1675 | |
1676 | annotate_display_value (); | |
1677 | ||
5d3729b5 | 1678 | do_examine (d->format, d->exp->gdbarch, addr); |
c906108c SS |
1679 | } |
1680 | else | |
1681 | { | |
79a45b7d TT |
1682 | struct value_print_options opts; |
1683 | ||
c906108c SS |
1684 | annotate_display_format (); |
1685 | ||
1686 | if (d->format.format) | |
1687 | printf_filtered ("/%c ", d->format.format); | |
1688 | ||
1689 | annotate_display_expression (); | |
1690 | ||
fa8a61dc | 1691 | puts_filtered (d->exp_string); |
c906108c SS |
1692 | annotate_display_expression_end (); |
1693 | ||
1694 | printf_filtered (" = "); | |
1695 | ||
1696 | annotate_display_expression (); | |
1697 | ||
79a45b7d | 1698 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1699 | opts.raw = d->format.raw; |
c906108c | 1700 | print_formatted (evaluate_expression (d->exp), |
79a45b7d | 1701 | d->format.size, &opts, gdb_stdout); |
c906108c SS |
1702 | printf_filtered ("\n"); |
1703 | } | |
1704 | ||
1705 | annotate_display_end (); | |
1706 | ||
1707 | gdb_flush (gdb_stdout); | |
1708 | current_display_number = -1; | |
1709 | } | |
1710 | ||
1711 | /* Display all of the values on the auto-display chain which can be | |
1712 | evaluated in the current scope. */ | |
1713 | ||
1714 | void | |
fba45db2 | 1715 | do_displays (void) |
c906108c | 1716 | { |
52f0bd74 | 1717 | struct display *d; |
c906108c SS |
1718 | |
1719 | for (d = display_chain; d; d = d->next) | |
1720 | do_one_display (d); | |
1721 | } | |
1722 | ||
1723 | /* Delete the auto-display which we were in the process of displaying. | |
1724 | This is done when there is an error or a signal. */ | |
1725 | ||
1726 | void | |
fba45db2 | 1727 | disable_display (int num) |
c906108c | 1728 | { |
52f0bd74 | 1729 | struct display *d; |
c906108c SS |
1730 | |
1731 | for (d = display_chain; d; d = d->next) | |
1732 | if (d->number == num) | |
1733 | { | |
b5de0fa7 | 1734 | d->enabled_p = 0; |
c906108c SS |
1735 | return; |
1736 | } | |
a3f17187 | 1737 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1738 | } |
c5aa993b | 1739 | |
c906108c | 1740 | void |
fba45db2 | 1741 | disable_current_display (void) |
c906108c SS |
1742 | { |
1743 | if (current_display_number >= 0) | |
1744 | { | |
1745 | disable_display (current_display_number); | |
675dcf4f MK |
1746 | fprintf_unfiltered (gdb_stderr, _("\ |
1747 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1748 | current_display_number); |
c906108c SS |
1749 | } |
1750 | current_display_number = -1; | |
1751 | } | |
1752 | ||
1753 | static void | |
fba45db2 | 1754 | display_info (char *ignore, int from_tty) |
c906108c | 1755 | { |
52f0bd74 | 1756 | struct display *d; |
c906108c SS |
1757 | |
1758 | if (!display_chain) | |
a3f17187 | 1759 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1760 | else |
a3f17187 AC |
1761 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1762 | Num Enb Expression\n")); | |
c906108c SS |
1763 | |
1764 | for (d = display_chain; d; d = d->next) | |
1765 | { | |
b5de0fa7 | 1766 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1767 | if (d->format.size) |
1768 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1769 | d->format.format); |
c906108c SS |
1770 | else if (d->format.format) |
1771 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1772 | puts_filtered (d->exp_string); |
ae767bfb | 1773 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1774 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1775 | printf_filtered ("\n"); |
1776 | gdb_flush (gdb_stdout); | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | static void | |
fba45db2 | 1781 | enable_display (char *args, int from_tty) |
c906108c | 1782 | { |
52f0bd74 AC |
1783 | char *p = args; |
1784 | char *p1; | |
1785 | int num; | |
1786 | struct display *d; | |
c906108c SS |
1787 | |
1788 | if (p == 0) | |
1789 | { | |
1790 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1791 | d->enabled_p = 1; |
c906108c SS |
1792 | } |
1793 | else | |
1794 | while (*p) | |
1795 | { | |
1796 | p1 = p; | |
1797 | while (*p1 >= '0' && *p1 <= '9') | |
1798 | p1++; | |
1799 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1800 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1801 | |
c906108c | 1802 | num = atoi (p); |
c5aa993b | 1803 | |
c906108c SS |
1804 | for (d = display_chain; d; d = d->next) |
1805 | if (d->number == num) | |
1806 | { | |
b5de0fa7 | 1807 | d->enabled_p = 1; |
c906108c SS |
1808 | goto win; |
1809 | } | |
a3f17187 | 1810 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1811 | win: |
1812 | p = p1; | |
1813 | while (*p == ' ' || *p == '\t') | |
1814 | p++; | |
1815 | } | |
1816 | } | |
1817 | ||
c906108c | 1818 | static void |
fba45db2 | 1819 | disable_display_command (char *args, int from_tty) |
c906108c | 1820 | { |
52f0bd74 AC |
1821 | char *p = args; |
1822 | char *p1; | |
1823 | struct display *d; | |
c906108c SS |
1824 | |
1825 | if (p == 0) | |
1826 | { | |
1827 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1828 | d->enabled_p = 0; |
c906108c SS |
1829 | } |
1830 | else | |
1831 | while (*p) | |
1832 | { | |
1833 | p1 = p; | |
1834 | while (*p1 >= '0' && *p1 <= '9') | |
1835 | p1++; | |
1836 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1837 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1838 | |
c906108c SS |
1839 | disable_display (atoi (p)); |
1840 | ||
1841 | p = p1; | |
1842 | while (*p == ' ' || *p == '\t') | |
1843 | p++; | |
1844 | } | |
1845 | } | |
a3247a22 PP |
1846 | |
1847 | /* Return 1 if D uses SOLIB (and will become dangling when SOLIB | |
1848 | is unloaded), otherwise return 0. */ | |
1849 | ||
1850 | static int | |
1851 | display_uses_solib_p (const struct display *d, | |
1852 | const struct so_list *solib) | |
1853 | { | |
36dc683c | 1854 | int endpos; |
a3247a22 | 1855 | struct expression *const exp = d->exp; |
36dc683c | 1856 | const union exp_element *const elts = exp->elts; |
a3247a22 PP |
1857 | |
1858 | if (d->block != NULL | |
6c95b8df | 1859 | && d->pspace == solib->pspace |
5fd1a349 | 1860 | && solib_contains_address_p (solib, d->block->startaddr)) |
a3247a22 PP |
1861 | return 1; |
1862 | ||
36dc683c | 1863 | for (endpos = exp->nelts; endpos > 0; ) |
a3247a22 | 1864 | { |
36dc683c DE |
1865 | int i, args, oplen = 0; |
1866 | ||
1867 | exp->language_defn->la_exp_desc->operator_length (exp, endpos, | |
1868 | &oplen, &args); | |
1869 | gdb_assert (oplen > 0); | |
a3247a22 | 1870 | |
36dc683c | 1871 | i = endpos - oplen; |
a3247a22 PP |
1872 | if (elts[i].opcode == OP_VAR_VALUE) |
1873 | { | |
1874 | const struct block *const block = elts[i + 1].block; | |
1875 | const struct symbol *const symbol = elts[i + 2].symbol; | |
1876 | const struct obj_section *const section = | |
1877 | SYMBOL_OBJ_SECTION (symbol); | |
1878 | ||
1879 | if (block != NULL | |
6c95b8df PA |
1880 | && solib_contains_address_p (solib, |
1881 | block->startaddr)) | |
a3247a22 PP |
1882 | return 1; |
1883 | ||
1884 | if (section && section->objfile == solib->objfile) | |
1885 | return 1; | |
1886 | } | |
36dc683c | 1887 | endpos -= oplen; |
a3247a22 | 1888 | } |
36dc683c | 1889 | |
a3247a22 PP |
1890 | return 0; |
1891 | } | |
1892 | ||
1893 | /* display_chain items point to blocks and expressions. Some expressions in | |
1894 | turn may point to symbols. | |
1895 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1896 | obstack_free'd when a shared library is unloaded. | |
1897 | Clear pointers that are about to become dangling. | |
1898 | Both .exp and .block fields will be restored next time we need to display | |
1899 | an item by re-parsing .exp_string field in the new execution context. */ | |
1900 | ||
1901 | static void | |
1902 | clear_dangling_display_expressions (struct so_list *solib) | |
1903 | { | |
1904 | struct display *d; | |
1905 | struct objfile *objfile = NULL; | |
1906 | ||
1907 | for (d = display_chain; d; d = d->next) | |
1908 | { | |
1909 | if (d->exp && display_uses_solib_p (d, solib)) | |
1910 | { | |
1911 | xfree (d->exp); | |
1912 | d->exp = NULL; | |
1913 | d->block = NULL; | |
1914 | } | |
1915 | } | |
1916 | } | |
c906108c | 1917 | \f |
c5aa993b | 1918 | |
675dcf4f | 1919 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1920 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1921 | name will be used. STREAM is the ui_file on which to print the | |
1922 | value. INDENT specifies the number of indent levels to print | |
1923 | before printing the variable name. */ | |
c906108c SS |
1924 | |
1925 | void | |
aad95b57 TT |
1926 | print_variable_and_value (const char *name, struct symbol *var, |
1927 | struct frame_info *frame, | |
1928 | struct ui_file *stream, int indent) | |
c906108c | 1929 | { |
aad95b57 | 1930 | struct value *val; |
79a45b7d | 1931 | struct value_print_options opts; |
c906108c | 1932 | |
aad95b57 TT |
1933 | if (!name) |
1934 | name = SYMBOL_PRINT_NAME (var); | |
1935 | ||
1936 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
1937 | ||
1938 | val = read_var_value (var, frame); | |
79a45b7d | 1939 | get_user_print_options (&opts); |
aad95b57 TT |
1940 | common_val_print (val, stream, indent, &opts, current_language); |
1941 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
1942 | } |
1943 | ||
c906108c | 1944 | static void |
fba45db2 | 1945 | printf_command (char *arg, int from_tty) |
c906108c | 1946 | { |
52f0bd74 AC |
1947 | char *f = NULL; |
1948 | char *s = arg; | |
c906108c | 1949 | char *string = NULL; |
3d6d86c6 | 1950 | struct value **val_args; |
c906108c SS |
1951 | char *substrings; |
1952 | char *current_substring; | |
1953 | int nargs = 0; | |
1954 | int allocated_args = 20; | |
1955 | struct cleanup *old_cleanups; | |
1956 | ||
675dcf4f | 1957 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1958 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1959 | |
1960 | if (s == 0) | |
e2e0b3e5 | 1961 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1962 | |
1963 | /* Skip white space before format string */ | |
c5aa993b JM |
1964 | while (*s == ' ' || *s == '\t') |
1965 | s++; | |
c906108c | 1966 | |
675dcf4f | 1967 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1968 | if (*s++ != '"') |
8a3fe4f8 | 1969 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1970 | |
1971 | /* Parse the format-control string and copy it into the string STRING, | |
1972 | processing some kinds of escape sequence. */ | |
1973 | ||
1974 | f = string = (char *) alloca (strlen (s) + 1); | |
1975 | ||
1976 | while (*s != '"') | |
1977 | { | |
1978 | int c = *s++; | |
1979 | switch (c) | |
1980 | { | |
1981 | case '\0': | |
8a3fe4f8 | 1982 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1983 | |
1984 | case '\\': | |
1985 | switch (c = *s++) | |
1986 | { | |
1987 | case '\\': | |
1988 | *f++ = '\\'; | |
1989 | break; | |
1990 | case 'a': | |
c906108c | 1991 | *f++ = '\a'; |
c906108c SS |
1992 | break; |
1993 | case 'b': | |
1994 | *f++ = '\b'; | |
1995 | break; | |
1996 | case 'f': | |
1997 | *f++ = '\f'; | |
1998 | break; | |
1999 | case 'n': | |
2000 | *f++ = '\n'; | |
2001 | break; | |
2002 | case 'r': | |
2003 | *f++ = '\r'; | |
2004 | break; | |
2005 | case 't': | |
2006 | *f++ = '\t'; | |
2007 | break; | |
2008 | case 'v': | |
2009 | *f++ = '\v'; | |
2010 | break; | |
2011 | case '"': | |
2012 | *f++ = '"'; | |
2013 | break; | |
2014 | default: | |
2015 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 2016 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
2017 | c); |
2018 | } | |
2019 | break; | |
2020 | ||
2021 | default: | |
2022 | *f++ = c; | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | /* Skip over " and following space and comma. */ | |
2027 | s++; | |
2028 | *f++ = '\0'; | |
c5aa993b JM |
2029 | while (*s == ' ' || *s == '\t') |
2030 | s++; | |
c906108c SS |
2031 | |
2032 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2033 | error (_("Invalid argument syntax")); |
c906108c | 2034 | |
c5aa993b JM |
2035 | if (*s == ',') |
2036 | s++; | |
2037 | while (*s == ' ' || *s == '\t') | |
2038 | s++; | |
c906108c SS |
2039 | |
2040 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2041 | substrings = alloca (strlen (string) * 2); | |
2042 | current_substring = substrings; | |
2043 | ||
2044 | { | |
2045 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2046 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2047 | something of the right size. */ | |
2048 | ||
c5aa993b JM |
2049 | enum argclass |
2050 | { | |
6c7a06a3 TT |
2051 | int_arg, long_arg, long_long_arg, ptr_arg, |
2052 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 2053 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 2054 | }; |
c906108c SS |
2055 | enum argclass *argclass; |
2056 | enum argclass this_argclass; | |
2057 | char *last_arg; | |
2058 | int nargs_wanted; | |
c906108c SS |
2059 | int i; |
2060 | ||
2061 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2062 | nargs_wanted = 0; | |
2063 | f = string; | |
2064 | last_arg = string; | |
2065 | while (*f) | |
2066 | if (*f++ == '%') | |
2067 | { | |
46e9880c DJ |
2068 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2069 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2070 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2071 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2072 | int bad = 0; |
2073 | ||
2074 | /* Check the validity of the format specifier, and work | |
2075 | out what argument it expects. We only accept C89 | |
2076 | format strings, with the exception of long long (which | |
2077 | we autoconf for). */ | |
2078 | ||
2079 | /* Skip over "%%". */ | |
2080 | if (*f == '%') | |
c906108c | 2081 | { |
c906108c | 2082 | f++; |
46e9880c | 2083 | continue; |
c906108c | 2084 | } |
46e9880c DJ |
2085 | |
2086 | /* The first part of a format specifier is a set of flag | |
2087 | characters. */ | |
2088 | while (strchr ("0-+ #", *f)) | |
2089 | { | |
2090 | if (*f == '#') | |
2091 | seen_hash = 1; | |
2092 | else if (*f == '0') | |
2093 | seen_zero = 1; | |
2094 | else if (*f == ' ') | |
2095 | seen_space = 1; | |
2096 | else if (*f == '+') | |
2097 | seen_plus = 1; | |
2098 | f++; | |
2099 | } | |
2100 | ||
2101 | /* The next part of a format specifier is a width. */ | |
2102 | while (strchr ("0123456789", *f)) | |
2103 | f++; | |
2104 | ||
2105 | /* The next part of a format specifier is a precision. */ | |
2106 | if (*f == '.') | |
2107 | { | |
2108 | seen_prec = 1; | |
2109 | f++; | |
2110 | while (strchr ("0123456789", *f)) | |
2111 | f++; | |
2112 | } | |
2113 | ||
2114 | /* The next part of a format specifier is a length modifier. */ | |
2115 | if (*f == 'h') | |
2116 | { | |
2117 | seen_h = 1; | |
2118 | f++; | |
2119 | } | |
2120 | else if (*f == 'l') | |
2121 | { | |
2122 | f++; | |
2123 | lcount++; | |
2124 | if (*f == 'l') | |
2125 | { | |
2126 | f++; | |
2127 | lcount++; | |
2128 | } | |
2129 | } | |
2130 | else if (*f == 'L') | |
2131 | { | |
2132 | seen_big_l = 1; | |
2133 | f++; | |
2134 | } | |
0aea4bf3 LM |
2135 | /* Decimal32 modifier. */ |
2136 | else if (*f == 'H') | |
2137 | { | |
2138 | seen_big_h = 1; | |
2139 | f++; | |
2140 | } | |
2141 | /* Decimal64 and Decimal128 modifiers. */ | |
2142 | else if (*f == 'D') | |
2143 | { | |
2144 | f++; | |
2145 | ||
2146 | /* Check for a Decimal128. */ | |
2147 | if (*f == 'D') | |
2148 | { | |
2149 | f++; | |
2150 | seen_double_big_d = 1; | |
2151 | } | |
2152 | else | |
2153 | seen_big_d = 1; | |
2154 | } | |
46e9880c | 2155 | |
c906108c SS |
2156 | switch (*f) |
2157 | { | |
46e9880c DJ |
2158 | case 'u': |
2159 | if (seen_hash) | |
2160 | bad = 1; | |
2161 | /* FALLTHROUGH */ | |
2162 | ||
2163 | case 'o': | |
2164 | case 'x': | |
2165 | case 'X': | |
2166 | if (seen_space || seen_plus) | |
2167 | bad = 1; | |
2168 | /* FALLTHROUGH */ | |
2169 | ||
2170 | case 'd': | |
2171 | case 'i': | |
2172 | if (lcount == 0) | |
2173 | this_argclass = int_arg; | |
2174 | else if (lcount == 1) | |
2175 | this_argclass = long_arg; | |
2176 | else | |
2177 | this_argclass = long_long_arg; | |
2178 | ||
2179 | if (seen_big_l) | |
2180 | bad = 1; | |
2181 | break; | |
2182 | ||
2183 | case 'c': | |
6c7a06a3 TT |
2184 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2185 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2186 | bad = 1; |
2187 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2188 | bad = 1; | |
2189 | break; | |
2190 | ||
2191 | case 'p': | |
2192 | this_argclass = ptr_arg; | |
2193 | if (lcount || seen_h || seen_big_l) | |
2194 | bad = 1; | |
2195 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2196 | bad = 1; | |
2197 | break; | |
2198 | ||
c906108c | 2199 | case 's': |
6c7a06a3 TT |
2200 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2201 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2202 | bad = 1; |
2203 | if (seen_zero || seen_space || seen_plus) | |
2204 | bad = 1; | |
c906108c SS |
2205 | break; |
2206 | ||
2207 | case 'e': | |
2208 | case 'f': | |
2209 | case 'g': | |
46e9880c DJ |
2210 | case 'E': |
2211 | case 'G': | |
0aea4bf3 LM |
2212 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2213 | this_argclass = decfloat_arg; | |
2214 | else if (seen_big_l) | |
46e9880c DJ |
2215 | this_argclass = long_double_arg; |
2216 | else | |
2217 | this_argclass = double_arg; | |
2218 | ||
2219 | if (lcount || seen_h) | |
2220 | bad = 1; | |
c906108c SS |
2221 | break; |
2222 | ||
2223 | case '*': | |
8a3fe4f8 | 2224 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2225 | |
2226 | case 'n': | |
8a3fe4f8 | 2227 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2228 | |
46e9880c DJ |
2229 | case '\0': |
2230 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2231 | |
2232 | default: | |
46e9880c | 2233 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2234 | } |
46e9880c DJ |
2235 | |
2236 | if (bad) | |
2237 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
2238 | *f); | |
2239 | ||
c906108c | 2240 | f++; |
09d71d23 AS |
2241 | |
2242 | if (lcount > 1 && USE_PRINTF_I64) | |
2243 | { | |
2244 | /* Windows' printf does support long long, but not the usual way. | |
2245 | Convert %lld to %I64d. */ | |
2246 | int length_before_ll = f - last_arg - 1 - lcount; | |
2247 | strncpy (current_substring, last_arg, length_before_ll); | |
2248 | strcpy (current_substring + length_before_ll, "I64"); | |
2249 | current_substring[length_before_ll + 3] = | |
2250 | last_arg[length_before_ll + lcount]; | |
2251 | current_substring += length_before_ll + 4; | |
2252 | } | |
6c7a06a3 TT |
2253 | else if (this_argclass == wide_string_arg |
2254 | || this_argclass == wide_char_arg) | |
2255 | { | |
2256 | /* Convert %ls or %lc to %s. */ | |
2257 | int length_before_ls = f - last_arg - 2; | |
2258 | strncpy (current_substring, last_arg, length_before_ls); | |
2259 | strcpy (current_substring + length_before_ls, "s"); | |
2260 | current_substring += length_before_ls + 2; | |
2261 | } | |
09d71d23 AS |
2262 | else |
2263 | { | |
2264 | strncpy (current_substring, last_arg, f - last_arg); | |
2265 | current_substring += f - last_arg; | |
2266 | } | |
46e9880c DJ |
2267 | *current_substring++ = '\0'; |
2268 | last_arg = f; | |
2269 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2270 | } |
2271 | ||
2272 | /* Now, parse all arguments and evaluate them. | |
2273 | Store the VALUEs in VAL_ARGS. */ | |
2274 | ||
2275 | while (*s != '\0') | |
2276 | { | |
2277 | char *s1; | |
2278 | if (nargs == allocated_args) | |
f976f6d4 AC |
2279 | val_args = (struct value **) xrealloc ((char *) val_args, |
2280 | (allocated_args *= 2) | |
2281 | * sizeof (struct value *)); | |
c906108c SS |
2282 | s1 = s; |
2283 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2284 | |
c906108c SS |
2285 | nargs++; |
2286 | s = s1; | |
2287 | if (*s == ',') | |
2288 | s++; | |
2289 | } | |
c5aa993b | 2290 | |
c906108c | 2291 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2292 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2293 | |
2294 | /* Now actually print them. */ | |
2295 | current_substring = substrings; | |
2296 | for (i = 0; i < nargs; i++) | |
2297 | { | |
2298 | switch (argclass[i]) | |
2299 | { | |
2300 | case string_arg: | |
2301 | { | |
777ea8f1 | 2302 | gdb_byte *str; |
c906108c SS |
2303 | CORE_ADDR tem; |
2304 | int j; | |
1aa20aa8 | 2305 | tem = value_as_address (val_args[i]); |
c906108c SS |
2306 | |
2307 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2308 | for (j = 0;; j++) |
c906108c | 2309 | { |
777ea8f1 | 2310 | gdb_byte c; |
c906108c | 2311 | QUIT; |
d4b2399a | 2312 | read_memory (tem + j, &c, 1); |
c906108c SS |
2313 | if (c == 0) |
2314 | break; | |
2315 | } | |
2316 | ||
2317 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2318 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2319 | if (j != 0) |
2320 | read_memory (tem, str, j); | |
c906108c SS |
2321 | str[j] = 0; |
2322 | ||
777ea8f1 | 2323 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2324 | } |
2325 | break; | |
6c7a06a3 TT |
2326 | case wide_string_arg: |
2327 | { | |
2328 | gdb_byte *str; | |
2329 | CORE_ADDR tem; | |
2330 | int j; | |
50810684 UW |
2331 | struct gdbarch *gdbarch |
2332 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2333 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2334 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2335 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2336 | int wcwidth = TYPE_LENGTH (wctype); |
2337 | gdb_byte *buf = alloca (wcwidth); | |
2338 | struct obstack output; | |
2339 | struct cleanup *inner_cleanup; | |
2340 | ||
2341 | tem = value_as_address (val_args[i]); | |
2342 | ||
2343 | /* This is a %s argument. Find the length of the string. */ | |
2344 | for (j = 0;; j += wcwidth) | |
2345 | { | |
2346 | QUIT; | |
2347 | read_memory (tem + j, buf, wcwidth); | |
e17a4113 | 2348 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) |
6c7a06a3 TT |
2349 | break; |
2350 | } | |
2351 | ||
2352 | /* Copy the string contents into a string inside GDB. */ | |
2353 | str = (gdb_byte *) alloca (j + wcwidth); | |
2354 | if (j != 0) | |
2355 | read_memory (tem, str, j); | |
2356 | memset (&str[j], 0, wcwidth); | |
2357 | ||
2358 | obstack_init (&output); | |
2359 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2360 | ||
e17a4113 | 2361 | convert_between_encodings (target_wide_charset (byte_order), |
6c7a06a3 TT |
2362 | host_charset (), |
2363 | str, j, wcwidth, | |
2364 | &output, translit_char); | |
2365 | obstack_grow_str0 (&output, ""); | |
2366 | ||
2367 | printf_filtered (current_substring, obstack_base (&output)); | |
2368 | do_cleanups (inner_cleanup); | |
2369 | } | |
2370 | break; | |
2371 | case wide_char_arg: | |
2372 | { | |
50810684 UW |
2373 | struct gdbarch *gdbarch |
2374 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2375 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2376 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2377 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2378 | struct type *valtype; |
2379 | struct obstack output; | |
2380 | struct cleanup *inner_cleanup; | |
2381 | const gdb_byte *bytes; | |
2382 | ||
2383 | valtype = value_type (val_args[i]); | |
2384 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2385 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2386 | error (_("expected wchar_t argument for %%lc")); | |
2387 | ||
2388 | bytes = value_contents (val_args[i]); | |
2389 | ||
2390 | obstack_init (&output); | |
2391 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2392 | ||
e17a4113 | 2393 | convert_between_encodings (target_wide_charset (byte_order), |
6c7a06a3 TT |
2394 | host_charset (), |
2395 | bytes, TYPE_LENGTH (valtype), | |
2396 | TYPE_LENGTH (valtype), | |
2397 | &output, translit_char); | |
2398 | obstack_grow_str0 (&output, ""); | |
2399 | ||
2400 | printf_filtered (current_substring, obstack_base (&output)); | |
2401 | do_cleanups (inner_cleanup); | |
2402 | } | |
2403 | break; | |
c906108c SS |
2404 | case double_arg: |
2405 | { | |
b806fb9a UW |
2406 | struct type *type = value_type (val_args[i]); |
2407 | DOUBLEST val; | |
2408 | int inv; | |
2409 | ||
2410 | /* If format string wants a float, unchecked-convert the value | |
2411 | to floating point of the same size. */ | |
50810684 | 2412 | type = float_type_from_length (type); |
b806fb9a UW |
2413 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2414 | if (inv) | |
2415 | error (_("Invalid floating value found in program.")); | |
2416 | ||
2417 | printf_filtered (current_substring, (double) val); | |
c906108c SS |
2418 | break; |
2419 | } | |
46e9880c DJ |
2420 | case long_double_arg: |
2421 | #ifdef HAVE_LONG_DOUBLE | |
2422 | { | |
b806fb9a UW |
2423 | struct type *type = value_type (val_args[i]); |
2424 | DOUBLEST val; | |
2425 | int inv; | |
2426 | ||
2427 | /* If format string wants a float, unchecked-convert the value | |
2428 | to floating point of the same size. */ | |
50810684 | 2429 | type = float_type_from_length (type); |
b806fb9a UW |
2430 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2431 | if (inv) | |
2432 | error (_("Invalid floating value found in program.")); | |
2433 | ||
2434 | printf_filtered (current_substring, (long double) val); | |
46e9880c DJ |
2435 | break; |
2436 | } | |
2437 | #else | |
2438 | error (_("long double not supported in printf")); | |
2439 | #endif | |
c906108c SS |
2440 | case long_long_arg: |
2441 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2442 | { | |
2443 | long long val = value_as_long (val_args[i]); | |
2444 | printf_filtered (current_substring, val); | |
2445 | break; | |
2446 | } | |
2447 | #else | |
8a3fe4f8 | 2448 | error (_("long long not supported in printf")); |
c906108c SS |
2449 | #endif |
2450 | case int_arg: | |
2451 | { | |
46e9880c DJ |
2452 | int val = value_as_long (val_args[i]); |
2453 | printf_filtered (current_substring, val); | |
2454 | break; | |
2455 | } | |
2456 | case long_arg: | |
2457 | { | |
c906108c SS |
2458 | long val = value_as_long (val_args[i]); |
2459 | printf_filtered (current_substring, val); | |
2460 | break; | |
2461 | } | |
1a619819 | 2462 | |
0aea4bf3 LM |
2463 | /* Handles decimal floating values. */ |
2464 | case decfloat_arg: | |
1a619819 | 2465 | { |
0aea4bf3 | 2466 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2467 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2468 | /* If we have native support for Decimal floating |
2469 | printing, handle it here. */ | |
2470 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2471 | #else |
1a619819 LM |
2472 | |
2473 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2474 | we convert the DFP values to string and print them using |
2475 | the %s format specifier. */ | |
2476 | ||
2477 | char *eos, *sos; | |
2478 | int nnull_chars = 0; | |
2479 | ||
2480 | /* Parameter data. */ | |
2481 | struct type *param_type = value_type (val_args[i]); | |
2482 | unsigned int param_len = TYPE_LENGTH (param_type); | |
50810684 | 2483 | struct gdbarch *gdbarch = get_type_arch (param_type); |
e17a4113 | 2484 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0aea4bf3 LM |
2485 | |
2486 | /* DFP output data. */ | |
2487 | struct value *dfp_value = NULL; | |
2488 | gdb_byte *dfp_ptr; | |
2489 | int dfp_len = 16; | |
2490 | gdb_byte dec[16]; | |
2491 | struct type *dfp_type = NULL; | |
2492 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2493 | |
2494 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2495 | and check for DFP length modifiers. */ |
1a619819 LM |
2496 | eos = current_substring + strlen (current_substring); |
2497 | ||
0aea4bf3 LM |
2498 | /* Look for the float/double format specifier. */ |
2499 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2500 | && *eos != 'g' && *eos != 'G') | |
2501 | eos--; | |
2502 | ||
2503 | sos = eos; | |
2504 | ||
2505 | /* Search for the '%' char and extract the size and type of | |
2506 | the output decimal value based on its modifiers | |
2507 | (%Hf, %Df, %DDf). */ | |
2508 | while (*--sos != '%') | |
2509 | { | |
2510 | if (*sos == 'H') | |
2511 | { | |
2512 | dfp_len = 4; | |
50810684 | 2513 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; |
0aea4bf3 LM |
2514 | } |
2515 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2516 | { | |
2517 | dfp_len = 16; | |
50810684 | 2518 | dfp_type = builtin_type (gdbarch)->builtin_declong; |
0aea4bf3 LM |
2519 | sos--; |
2520 | } | |
2521 | else | |
2522 | { | |
2523 | dfp_len = 8; | |
50810684 | 2524 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; |
0aea4bf3 LM |
2525 | } |
2526 | } | |
2527 | ||
2528 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2529 | *++sos = 's'; | |
2530 | ||
2531 | /* Go through the whole format string and pull the correct | |
2532 | number of chars back to compensate for the change in the | |
2533 | format specifier. */ | |
2534 | while (nnull_chars < nargs - i) | |
2535 | { | |
2536 | if (*eos == '\0') | |
2537 | nnull_chars++; | |
2538 | ||
2539 | *++sos = *++eos; | |
2540 | } | |
2541 | ||
2542 | /* Conversion between different DFP types. */ | |
2543 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
e17a4113 UW |
2544 | decimal_convert (param_ptr, param_len, byte_order, |
2545 | dec, dfp_len, byte_order); | |
0aea4bf3 LM |
2546 | else |
2547 | /* If this is a non-trivial conversion, just output 0. | |
2548 | A correct converted value can be displayed by explicitly | |
2549 | casting to a DFP type. */ | |
e17a4113 | 2550 | decimal_from_string (dec, dfp_len, byte_order, "0"); |
0aea4bf3 LM |
2551 | |
2552 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2553 | ||
2554 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2555 | ||
e17a4113 | 2556 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); |
1a619819 LM |
2557 | |
2558 | /* Print the DFP value. */ | |
2559 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2560 | |
1a619819 LM |
2561 | break; |
2562 | #endif | |
2563 | } | |
2564 | ||
2025a643 DJ |
2565 | case ptr_arg: |
2566 | { | |
2567 | /* We avoid the host's %p because pointers are too | |
2568 | likely to be the wrong size. The only interesting | |
2569 | modifier for %p is a width; extract that, and then | |
2570 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2571 | ||
2572 | char *p, *fmt, *fmt_p; | |
2573 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2574 | long long val = value_as_long (val_args[i]); | |
2575 | #else | |
2576 | long val = value_as_long (val_args[i]); | |
2577 | #endif | |
2578 | ||
2579 | fmt = alloca (strlen (current_substring) + 5); | |
2580 | ||
2581 | /* Copy up to the leading %. */ | |
2582 | p = current_substring; | |
2583 | fmt_p = fmt; | |
2584 | while (*p) | |
2585 | { | |
2586 | int is_percent = (*p == '%'); | |
2587 | *fmt_p++ = *p++; | |
2588 | if (is_percent) | |
2589 | { | |
2590 | if (*p == '%') | |
2591 | *fmt_p++ = *p++; | |
2592 | else | |
2593 | break; | |
2594 | } | |
2595 | } | |
2596 | ||
2597 | if (val != 0) | |
2598 | *fmt_p++ = '#'; | |
2599 | ||
2600 | /* Copy any width. */ | |
2601 | while (*p >= '0' && *p < '9') | |
2602 | *fmt_p++ = *p++; | |
2603 | ||
2604 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2605 | if (val != 0) | |
2606 | { | |
2607 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2608 | *fmt_p++ = 'l'; | |
2609 | #endif | |
2610 | *fmt_p++ = 'l'; | |
2611 | *fmt_p++ = 'x'; | |
2612 | *fmt_p++ = '\0'; | |
2613 | printf_filtered (fmt, val); | |
2614 | } | |
2615 | else | |
2616 | { | |
2617 | *fmt_p++ = 's'; | |
2618 | *fmt_p++ = '\0'; | |
2619 | printf_filtered (fmt, "(nil)"); | |
2620 | } | |
2621 | ||
2622 | break; | |
2623 | } | |
675dcf4f MK |
2624 | default: |
2625 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2626 | _("failed internal consistency check")); |
c906108c SS |
2627 | } |
2628 | /* Skip to the next substring. */ | |
2629 | current_substring += strlen (current_substring) + 1; | |
2630 | } | |
2631 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2632 | puts_filtered (last_arg); |
c906108c SS |
2633 | } |
2634 | do_cleanups (old_cleanups); | |
2635 | } | |
c906108c | 2636 | |
c906108c | 2637 | void |
fba45db2 | 2638 | _initialize_printcmd (void) |
c906108c | 2639 | { |
c94fdfd0 EZ |
2640 | struct cmd_list_element *c; |
2641 | ||
c906108c SS |
2642 | current_display_number = -1; |
2643 | ||
a3247a22 PP |
2644 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2645 | ||
c906108c | 2646 | add_info ("address", address_info, |
1bedd215 | 2647 | _("Describe where symbol SYM is stored.")); |
c906108c | 2648 | |
1bedd215 AC |
2649 | add_info ("symbol", sym_info, _("\ |
2650 | Describe what symbol is at location ADDR.\n\ | |
2651 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2652 | |
1bedd215 AC |
2653 | add_com ("x", class_vars, x_command, _("\ |
2654 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2655 | ADDRESS is an expression for the memory address to examine.\n\ |
2656 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2657 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2658 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2659 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2660 | The specified number of objects of the specified size are printed\n\ |
2661 | according to the format.\n\n\ | |
2662 | Defaults for format and size letters are those previously used.\n\ | |
2663 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2664 | with this command or \"print\".")); |
c906108c | 2665 | |
c906108c SS |
2666 | #if 0 |
2667 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2668 | _("Print line number and file of definition of variable.")); |
c906108c | 2669 | #endif |
c5aa993b | 2670 | |
1bedd215 AC |
2671 | add_info ("display", display_info, _("\ |
2672 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2673 | |
1a966eab AC |
2674 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2675 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2676 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2677 | No argument means cancel all automatic-display expressions.\n\ | |
2678 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2679 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2680 | &cmdlist); |
c906108c | 2681 | |
1bedd215 AC |
2682 | add_com ("display", class_vars, display_command, _("\ |
2683 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2684 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2685 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2686 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2687 | and examining is done as in the \"x\" command.\n\n\ | |
2688 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2689 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2690 | |
1a966eab AC |
2691 | add_cmd ("display", class_vars, enable_display, _("\ |
2692 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2693 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2694 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2695 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2696 | |
1a966eab AC |
2697 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2698 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2699 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2700 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2701 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2702 | |
1a966eab AC |
2703 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2704 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2705 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2706 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2707 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2708 | |
1bedd215 AC |
2709 | add_com ("printf", class_vars, printf_command, _("\ |
2710 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2711 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2712 | |
1bedd215 AC |
2713 | add_com ("output", class_vars, output_command, _("\ |
2714 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2715 | This is useful in user-defined commands.")); | |
c906108c | 2716 | |
1bedd215 AC |
2717 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2718 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2719 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2720 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2721 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2722 | variable in the program being debugged. EXP is any valid expression.\n\ |
2723 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2724 | \n\ | |
2725 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2726 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2727 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2728 | if (dbx_commands) |
1bedd215 AC |
2729 | add_com ("assign", class_vars, set_command, _("\ |
2730 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2731 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2732 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2733 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2734 | variable in the program being debugged. EXP is any valid expression.\n\ |
2735 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2736 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2737 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2738 | |
2739 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2740 | c = add_com ("call", class_vars, call_command, _("\ |
2741 | Call a function in the program.\n\ | |
c906108c SS |
2742 | The argument is the function name and arguments, in the notation of the\n\ |
2743 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2744 | history, if it is not void.")); |
65d12d83 | 2745 | set_cmd_completer (c, expression_completer); |
c906108c | 2746 | |
1a966eab AC |
2747 | add_cmd ("variable", class_vars, set_command, _("\ |
2748 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2749 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2750 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2751 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2752 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2753 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2754 | &setlist); |
c906108c | 2755 | |
1bedd215 AC |
2756 | c = add_com ("print", class_vars, print_command, _("\ |
2757 | Print value of expression EXP.\n\ | |
c906108c SS |
2758 | Variables accessible are those of the lexical environment of the selected\n\ |
2759 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2760 | \n\ | |
2761 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2762 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2763 | Names starting with $ refer to registers (with the values they would have\n\ |
2764 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2765 | all registers saved by frames farther in) or else to debugger\n\ |
2766 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2767 | Use assignment expressions to give values to convenience variables.\n\ |
2768 | \n\ | |
c906108c SS |
2769 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2770 | @ is a binary operator for treating consecutive data objects\n\ | |
2771 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2772 | element is FOO, whose second element is stored in the space following\n\ | |
2773 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2774 | resides in memory.\n\ |
2775 | \n\ | |
c906108c | 2776 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2777 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2778 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2779 | add_com_alias ("p", "print", class_vars, 1); |
2780 | ||
1bedd215 AC |
2781 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2782 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2783 | environment, the value is printed in its own window.")); | |
65d12d83 | 2784 | set_cmd_completer (c, expression_completer); |
c906108c | 2785 | |
35096d9d AC |
2786 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2787 | &max_symbolic_offset, _("\ | |
2788 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2789 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2790 | NULL, | |
920d2a44 | 2791 | show_max_symbolic_offset, |
35096d9d | 2792 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2793 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2794 | &print_symbol_filename, _("\ | |
2795 | Set printing of source filename and line number with <symbol>."), _("\ | |
2796 | Show printing of source filename and line number with <symbol>."), NULL, | |
2797 | NULL, | |
920d2a44 | 2798 | show_print_symbol_filename, |
5bf193a2 | 2799 | &setprintlist, &showprintlist); |
c906108c | 2800 | } |