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, |
4c38e0a4 | 5 | 2008, 2009, 2010 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" |
704e9165 | 52 | #include "arch-utils.h" |
c906108c | 53 | |
6a83354a AC |
54 | #ifdef TUI |
55 | #include "tui/tui.h" /* For tui_active et.al. */ | |
56 | #endif | |
57 | ||
06be140c | 58 | #if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG) |
09d71d23 AS |
59 | # define USE_PRINTF_I64 1 |
60 | # define PRINTF_HAS_LONG_LONG | |
61 | #else | |
62 | # define USE_PRINTF_I64 0 | |
63 | #endif | |
64 | ||
c906108c | 65 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ |
c906108c SS |
66 | |
67 | struct format_data | |
c5aa993b JM |
68 | { |
69 | int count; | |
70 | char format; | |
71 | char size; | |
a6bac58e TT |
72 | |
73 | /* True if the value should be printed raw -- that is, bypassing | |
74 | python-based formatters. */ | |
75 | unsigned char raw; | |
c5aa993b | 76 | }; |
c906108c SS |
77 | |
78 | /* Last specified output format. */ | |
79 | ||
a6bac58e | 80 | static char last_format = 0; |
c906108c SS |
81 | |
82 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
83 | ||
84 | static char last_size = 'w'; | |
85 | ||
5d3729b5 | 86 | /* Default address to examine next, and associated architecture. */ |
c906108c | 87 | |
5d3729b5 | 88 | static struct gdbarch *next_gdbarch; |
c906108c SS |
89 | static CORE_ADDR next_address; |
90 | ||
a4642986 MR |
91 | /* Number of delay instructions following current disassembled insn. */ |
92 | ||
93 | static int branch_delay_insns; | |
94 | ||
c906108c SS |
95 | /* Last address examined. */ |
96 | ||
97 | static CORE_ADDR last_examine_address; | |
98 | ||
99 | /* Contents of last address examined. | |
100 | This is not valid past the end of the `x' command! */ | |
101 | ||
3d6d86c6 | 102 | static struct value *last_examine_value; |
c906108c SS |
103 | |
104 | /* Largest offset between a symbolic value and an address, that will be | |
105 | printed as `0x1234 <symbol+offset>'. */ | |
106 | ||
107 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
108 | static void |
109 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
110 | struct cmd_list_element *c, const char *value) | |
111 | { | |
112 | fprintf_filtered (file, _("\ | |
113 | The largest offset that will be printed in <symbol+1234> form is %s.\n"), | |
114 | value); | |
115 | } | |
c906108c SS |
116 | |
117 | /* Append the source filename and linenumber of the symbol when | |
118 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
119 | static int print_symbol_filename = 0; | |
920d2a44 AC |
120 | static void |
121 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
122 | struct cmd_list_element *c, const char *value) | |
123 | { | |
124 | fprintf_filtered (file, _("\ | |
125 | Printing of source filename and line number with <symbol> is %s.\n"), | |
126 | value); | |
127 | } | |
c906108c SS |
128 | |
129 | /* Number of auto-display expression currently being displayed. | |
130 | So that we can disable it if we get an error or a signal within it. | |
131 | -1 when not doing one. */ | |
132 | ||
133 | int current_display_number; | |
134 | ||
c906108c | 135 | struct display |
c5aa993b JM |
136 | { |
137 | /* Chain link to next auto-display item. */ | |
138 | struct display *next; | |
6c95b8df | 139 | |
fa8a61dc TT |
140 | /* The expression as the user typed it. */ |
141 | char *exp_string; | |
6c95b8df | 142 | |
c5aa993b JM |
143 | /* Expression to be evaluated and displayed. */ |
144 | struct expression *exp; | |
6c95b8df | 145 | |
c5aa993b JM |
146 | /* Item number of this auto-display item. */ |
147 | int number; | |
6c95b8df | 148 | |
c5aa993b JM |
149 | /* Display format specified. */ |
150 | struct format_data format; | |
6c95b8df PA |
151 | |
152 | /* Program space associated with `block'. */ | |
153 | struct program_space *pspace; | |
154 | ||
c5aa993b JM |
155 | /* Innermost block required by this expression when evaluated */ |
156 | struct block *block; | |
6c95b8df | 157 | |
c5aa993b | 158 | /* Status of this display (enabled or disabled) */ |
b5de0fa7 | 159 | int enabled_p; |
c5aa993b | 160 | }; |
c906108c SS |
161 | |
162 | /* Chain of expressions whose values should be displayed | |
163 | automatically each time the program stops. */ | |
164 | ||
165 | static struct display *display_chain; | |
166 | ||
167 | static int display_number; | |
168 | ||
169 | /* Prototypes for exported functions. */ | |
170 | ||
a14ed312 | 171 | void output_command (char *, int); |
c906108c | 172 | |
a14ed312 | 173 | void _initialize_printcmd (void); |
c906108c SS |
174 | |
175 | /* Prototypes for local functions. */ | |
176 | ||
a14ed312 | 177 | static void do_one_display (struct display *); |
c906108c | 178 | \f |
c5aa993b | 179 | |
c906108c SS |
180 | /* Decode a format specification. *STRING_PTR should point to it. |
181 | OFORMAT and OSIZE are used as defaults for the format and size | |
182 | if none are given in the format specification. | |
183 | If OSIZE is zero, then the size field of the returned value | |
184 | should be set only if a size is explicitly specified by the | |
185 | user. | |
186 | The structure returned describes all the data | |
187 | found in the specification. In addition, *STRING_PTR is advanced | |
188 | past the specification and past all whitespace following it. */ | |
189 | ||
190 | static struct format_data | |
fba45db2 | 191 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
192 | { |
193 | struct format_data val; | |
52f0bd74 | 194 | char *p = *string_ptr; |
c906108c SS |
195 | |
196 | val.format = '?'; | |
197 | val.size = '?'; | |
198 | val.count = 1; | |
a6bac58e | 199 | val.raw = 0; |
c906108c SS |
200 | |
201 | if (*p >= '0' && *p <= '9') | |
202 | val.count = atoi (p); | |
c5aa993b JM |
203 | while (*p >= '0' && *p <= '9') |
204 | p++; | |
c906108c SS |
205 | |
206 | /* Now process size or format letters that follow. */ | |
207 | ||
208 | while (1) | |
209 | { | |
210 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
211 | val.size = *p++; | |
a6bac58e TT |
212 | else if (*p == 'r') |
213 | { | |
214 | val.raw = 1; | |
215 | p++; | |
216 | } | |
c906108c SS |
217 | else if (*p >= 'a' && *p <= 'z') |
218 | val.format = *p++; | |
219 | else | |
220 | break; | |
221 | } | |
222 | ||
c5aa993b JM |
223 | while (*p == ' ' || *p == '\t') |
224 | p++; | |
c906108c SS |
225 | *string_ptr = p; |
226 | ||
227 | /* Set defaults for format and size if not specified. */ | |
228 | if (val.format == '?') | |
229 | { | |
230 | if (val.size == '?') | |
231 | { | |
232 | /* Neither has been specified. */ | |
233 | val.format = oformat; | |
234 | val.size = osize; | |
235 | } | |
236 | else | |
237 | /* If a size is specified, any format makes a reasonable | |
238 | default except 'i'. */ | |
239 | val.format = oformat == 'i' ? 'x' : oformat; | |
240 | } | |
241 | else if (val.size == '?') | |
242 | switch (val.format) | |
243 | { | |
244 | case 'a': | |
5d3729b5 UW |
245 | /* Pick the appropriate size for an address. This is deferred |
246 | until do_examine when we know the actual architecture to use. | |
247 | A special size value of 'a' is used to indicate this case. */ | |
248 | val.size = osize ? 'a' : osize; | |
c906108c SS |
249 | break; |
250 | case 'f': | |
251 | /* Floating point has to be word or giantword. */ | |
252 | if (osize == 'w' || osize == 'g') | |
253 | val.size = osize; | |
254 | else | |
255 | /* Default it to giantword if the last used size is not | |
256 | appropriate. */ | |
257 | val.size = osize ? 'g' : osize; | |
258 | break; | |
259 | case 'c': | |
260 | /* Characters default to one byte. */ | |
261 | val.size = osize ? 'b' : osize; | |
262 | break; | |
263 | default: | |
264 | /* The default is the size most recently specified. */ | |
265 | val.size = osize; | |
266 | } | |
267 | ||
268 | return val; | |
269 | } | |
270 | \f | |
79a45b7d | 271 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 272 | Do not end with a newline. |
c906108c | 273 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
274 | This is used to pad hex numbers so they line up. SIZE is 0 |
275 | for print / output and set for examine. */ | |
c906108c SS |
276 | |
277 | static void | |
79a45b7d TT |
278 | print_formatted (struct value *val, int size, |
279 | const struct value_print_options *options, | |
fba45db2 | 280 | struct ui_file *stream) |
c906108c | 281 | { |
df407dfe | 282 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
283 | int len = TYPE_LENGTH (type); |
284 | ||
285 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 286 | next_address = value_address (val) + len; |
c906108c | 287 | |
ea37ba09 | 288 | if (size) |
c906108c | 289 | { |
79a45b7d | 290 | switch (options->format) |
ea37ba09 DJ |
291 | { |
292 | case 's': | |
6c7a06a3 TT |
293 | { |
294 | struct type *elttype = value_type (val); | |
42ae5230 | 295 | next_address = (value_address (val) |
6c7a06a3 | 296 | + val_print_string (elttype, |
42ae5230 | 297 | value_address (val), -1, |
6c7a06a3 TT |
298 | stream, options)); |
299 | } | |
ea37ba09 | 300 | return; |
c906108c | 301 | |
ea37ba09 DJ |
302 | case 'i': |
303 | /* We often wrap here if there are long symbolic names. */ | |
304 | wrap_here (" "); | |
42ae5230 | 305 | next_address = (value_address (val) |
13274fc3 UW |
306 | + gdb_print_insn (get_type_arch (type), |
307 | value_address (val), stream, | |
ea37ba09 DJ |
308 | &branch_delay_insns)); |
309 | return; | |
310 | } | |
c906108c | 311 | } |
ea37ba09 | 312 | |
79a45b7d | 313 | if (options->format == 0 || options->format == 's' |
4e885b20 | 314 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
315 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
316 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
317 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
318 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
319 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 320 | value_print (val, stream, options); |
ea37ba09 DJ |
321 | else |
322 | /* User specified format, so don't look to the the type to | |
323 | tell us what to do. */ | |
324 | print_scalar_formatted (value_contents (val), type, | |
79a45b7d | 325 | options, size, stream); |
c906108c SS |
326 | } |
327 | ||
b806fb9a UW |
328 | /* Return builtin floating point type of same length as TYPE. |
329 | If no such type is found, return TYPE itself. */ | |
330 | static struct type * | |
50810684 | 331 | float_type_from_length (struct type *type) |
b806fb9a | 332 | { |
50810684 | 333 | struct gdbarch *gdbarch = get_type_arch (type); |
b806fb9a UW |
334 | const struct builtin_type *builtin = builtin_type (gdbarch); |
335 | unsigned int len = TYPE_LENGTH (type); | |
336 | ||
337 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
338 | type = builtin->builtin_float; | |
339 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
340 | type = builtin->builtin_double; | |
341 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
342 | type = builtin->builtin_long_double; | |
343 | ||
344 | return type; | |
345 | } | |
346 | ||
c906108c | 347 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
79a45b7d TT |
348 | according to OPTIONS and SIZE on STREAM. |
349 | Formats s and i are not supported at this level. | |
c906108c SS |
350 | |
351 | This is how the elements of an array or structure are printed | |
352 | with a format. */ | |
353 | ||
354 | void | |
366b1cbf | 355 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
356 | const struct value_print_options *options, |
357 | int size, struct ui_file *stream) | |
c906108c | 358 | { |
50810684 | 359 | struct gdbarch *gdbarch = get_type_arch (type); |
81cb7cc9 | 360 | LONGEST val_long = 0; |
c906108c | 361 | unsigned int len = TYPE_LENGTH (type); |
69feb676 | 362 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 363 | |
ea37ba09 DJ |
364 | /* If we get here with a string format, try again without it. Go |
365 | all the way back to the language printers, which may call us | |
366 | again. */ | |
79a45b7d | 367 | if (options->format == 's') |
ea37ba09 | 368 | { |
79a45b7d TT |
369 | struct value_print_options opts = *options; |
370 | opts.format = 0; | |
371 | opts.deref_ref = 0; | |
372 | val_print (type, valaddr, 0, 0, stream, 0, &opts, | |
d8ca156b | 373 | current_language); |
ea37ba09 DJ |
374 | return; |
375 | } | |
376 | ||
6b9acc27 JJ |
377 | if (len > sizeof(LONGEST) && |
378 | (TYPE_CODE (type) == TYPE_CODE_INT | |
379 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
380 | { | |
79a45b7d | 381 | switch (options->format) |
6b9acc27 JJ |
382 | { |
383 | case 'o': | |
d44e8473 | 384 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
385 | return; |
386 | case 'u': | |
387 | case 'd': | |
d44e8473 | 388 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
389 | return; |
390 | case 't': | |
d44e8473 | 391 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
392 | return; |
393 | case 'x': | |
d44e8473 | 394 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
395 | return; |
396 | case 'c': | |
6c7a06a3 | 397 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
398 | return; |
399 | default: | |
400 | break; | |
401 | }; | |
402 | } | |
403 | ||
79a45b7d | 404 | if (options->format != 'f') |
c906108c SS |
405 | val_long = unpack_long (type, valaddr); |
406 | ||
ef166cf4 | 407 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 408 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 409 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 410 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
69feb676 | 411 | len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 412 | |
c906108c SS |
413 | /* If we are printing it as unsigned, truncate it in case it is actually |
414 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
415 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 416 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
417 | { |
418 | if (len < sizeof (LONGEST)) | |
419 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
420 | } | |
421 | ||
79a45b7d | 422 | switch (options->format) |
c906108c SS |
423 | { |
424 | case 'x': | |
425 | if (!size) | |
426 | { | |
675dcf4f | 427 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
428 | print_longest (stream, 'x', 1, val_long); |
429 | } | |
430 | else | |
431 | switch (size) | |
432 | { | |
433 | case 'b': | |
434 | case 'h': | |
435 | case 'w': | |
436 | case 'g': | |
437 | print_longest (stream, size, 1, val_long); | |
438 | break; | |
439 | default: | |
8a3fe4f8 | 440 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
441 | } |
442 | break; | |
443 | ||
444 | case 'd': | |
445 | print_longest (stream, 'd', 1, val_long); | |
446 | break; | |
447 | ||
448 | case 'u': | |
449 | print_longest (stream, 'u', 0, val_long); | |
450 | break; | |
451 | ||
452 | case 'o': | |
453 | if (val_long) | |
454 | print_longest (stream, 'o', 1, val_long); | |
455 | else | |
456 | fprintf_filtered (stream, "0"); | |
457 | break; | |
458 | ||
459 | case 'a': | |
593de6a6 | 460 | { |
593de6a6 | 461 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
5af949e3 | 462 | print_address (gdbarch, addr, stream); |
593de6a6 | 463 | } |
c906108c SS |
464 | break; |
465 | ||
466 | case 'c': | |
79a45b7d TT |
467 | { |
468 | struct value_print_options opts = *options; | |
469 | opts.format = 0; | |
69feb676 | 470 | |
79a45b7d | 471 | if (TYPE_UNSIGNED (type)) |
69feb676 UW |
472 | type = builtin_type (gdbarch)->builtin_true_unsigned_char; |
473 | else | |
474 | type = builtin_type (gdbarch)->builtin_true_char; | |
475 | ||
476 | value_print (value_from_longest (type, val_long), stream, &opts); | |
79a45b7d | 477 | } |
c906108c SS |
478 | break; |
479 | ||
480 | case 'f': | |
50810684 | 481 | type = float_type_from_length (type); |
c906108c SS |
482 | print_floating (valaddr, type, stream); |
483 | break; | |
484 | ||
485 | case 0: | |
675dcf4f MK |
486 | internal_error (__FILE__, __LINE__, |
487 | _("failed internal consistency check")); | |
c906108c SS |
488 | |
489 | case 't': | |
490 | /* Binary; 't' stands for "two". */ | |
491 | { | |
c5aa993b JM |
492 | char bits[8 * (sizeof val_long) + 1]; |
493 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
494 | char *cp = bits; |
495 | int width; | |
496 | ||
c5aa993b JM |
497 | if (!size) |
498 | width = 8 * (sizeof val_long); | |
499 | else | |
500 | switch (size) | |
c906108c SS |
501 | { |
502 | case 'b': | |
503 | width = 8; | |
504 | break; | |
505 | case 'h': | |
506 | width = 16; | |
507 | break; | |
508 | case 'w': | |
509 | width = 32; | |
510 | break; | |
511 | case 'g': | |
512 | width = 64; | |
513 | break; | |
514 | default: | |
8a3fe4f8 | 515 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
516 | } |
517 | ||
c5aa993b JM |
518 | bits[width] = '\0'; |
519 | while (width-- > 0) | |
520 | { | |
521 | bits[width] = (val_long & 1) ? '1' : '0'; | |
522 | val_long >>= 1; | |
523 | } | |
c906108c SS |
524 | if (!size) |
525 | { | |
526 | while (*cp && *cp == '0') | |
527 | cp++; | |
528 | if (*cp == '\0') | |
529 | cp--; | |
530 | } | |
bb599908 | 531 | strcpy (buf, cp); |
306d9ac5 | 532 | fputs_filtered (buf, stream); |
c906108c SS |
533 | } |
534 | break; | |
535 | ||
536 | default: | |
79a45b7d | 537 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
538 | } |
539 | } | |
540 | ||
541 | /* Specify default address for `x' command. | |
675dcf4f | 542 | The `info lines' command uses this. */ |
c906108c SS |
543 | |
544 | void | |
8b9b9e1a | 545 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 546 | { |
8b9b9e1a UW |
547 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
548 | ||
5d3729b5 | 549 | next_gdbarch = gdbarch; |
c906108c SS |
550 | next_address = addr; |
551 | ||
552 | /* Make address available to the user as $_. */ | |
553 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 554 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
555 | } |
556 | ||
557 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
558 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
559 | Optionally also print source file and line number, if available. | |
560 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
561 | or to interpret it as a possible C++ name and convert it back to source | |
562 | form. However note that DO_DEMANGLE can be overridden by the specific | |
563 | settings of the demangle and asm_demangle variables. */ | |
564 | ||
565 | void | |
22e722e1 DJ |
566 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
567 | struct ui_file *stream, | |
675dcf4f | 568 | int do_demangle, char *leadin) |
dfcd3bfb JM |
569 | { |
570 | char *name = NULL; | |
571 | char *filename = NULL; | |
572 | int unmapped = 0; | |
573 | int offset = 0; | |
574 | int line = 0; | |
575 | ||
675dcf4f | 576 | /* Throw away both name and filename. */ |
2f9429ae AC |
577 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
578 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 579 | |
22e722e1 | 580 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 581 | &filename, &line, &unmapped)) |
2f9429ae AC |
582 | { |
583 | do_cleanups (cleanup_chain); | |
584 | return; | |
585 | } | |
dfcd3bfb JM |
586 | |
587 | fputs_filtered (leadin, stream); | |
588 | if (unmapped) | |
589 | fputs_filtered ("<*", stream); | |
590 | else | |
591 | fputs_filtered ("<", stream); | |
592 | fputs_filtered (name, stream); | |
593 | if (offset != 0) | |
594 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
595 | ||
596 | /* Append source filename and line number if desired. Give specific | |
597 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
598 | if (print_symbol_filename && filename != NULL) | |
599 | { | |
600 | if (line != -1) | |
601 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
602 | else | |
603 | fprintf_filtered (stream, " in %s", filename); | |
604 | } | |
605 | if (unmapped) | |
606 | fputs_filtered ("*>", stream); | |
607 | else | |
608 | fputs_filtered (">", stream); | |
609 | ||
610 | do_cleanups (cleanup_chain); | |
611 | } | |
612 | ||
613 | /* Given an address ADDR return all the elements needed to print the | |
614 | address in a symbolic form. NAME can be mangled or not depending | |
615 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
616 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
617 | success, when all the info in the OUT paramters is valid. Return 1 | |
618 | otherwise. */ | |
619 | int | |
22e722e1 DJ |
620 | build_address_symbolic (struct gdbarch *gdbarch, |
621 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
622 | int do_demangle, /* IN */ |
623 | char **name, /* OUT */ | |
624 | int *offset, /* OUT */ | |
625 | char **filename, /* OUT */ | |
626 | int *line, /* OUT */ | |
627 | int *unmapped) /* OUT */ | |
c906108c SS |
628 | { |
629 | struct minimal_symbol *msymbol; | |
630 | struct symbol *symbol; | |
c906108c | 631 | CORE_ADDR name_location = 0; |
714835d5 | 632 | struct obj_section *section = NULL; |
dfcd3bfb JM |
633 | char *name_temp = ""; |
634 | ||
89c83b10 | 635 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 636 | *unmapped = 0; |
c906108c | 637 | |
dfcd3bfb | 638 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 639 | mapped. */ |
c906108c SS |
640 | if (overlay_debugging) |
641 | { | |
642 | section = find_pc_overlay (addr); | |
643 | if (pc_in_unmapped_range (addr, section)) | |
644 | { | |
dfcd3bfb | 645 | *unmapped = 1; |
c906108c SS |
646 | addr = overlay_mapped_address (addr, section); |
647 | } | |
648 | } | |
649 | ||
c906108c SS |
650 | /* First try to find the address in the symbol table, then |
651 | in the minsyms. Take the closest one. */ | |
652 | ||
653 | /* This is defective in the sense that it only finds text symbols. So | |
654 | really this is kind of pointless--we should make sure that the | |
655 | minimal symbols have everything we need (by changing that we could | |
656 | save some memory, but for many debug format--ELF/DWARF or | |
657 | anything/stabs--it would be inconvenient to eliminate those minimal | |
658 | symbols anyway). */ | |
659 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
660 | symbol = find_pc_sect_function (addr, section); | |
661 | ||
662 | if (symbol) | |
663 | { | |
22e722e1 DJ |
664 | /* If this is a function (i.e. a code address), strip out any |
665 | non-address bits. For instance, display a pointer to the | |
666 | first instruction of a Thumb function as <function>; the | |
667 | second instruction will be <function+2>, even though the | |
668 | pointer is <function+3>. This matches the ISA behavior. */ | |
669 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
670 | ||
c906108c | 671 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 672 | if (do_demangle || asm_demangle) |
de5ad195 | 673 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 674 | else |
3567439c | 675 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
676 | } |
677 | ||
678 | if (msymbol != NULL) | |
679 | { | |
680 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
681 | { | |
682 | /* The msymbol is closer to the address than the symbol; | |
683 | use the msymbol instead. */ | |
684 | symbol = 0; | |
c906108c | 685 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 686 | if (do_demangle || asm_demangle) |
de5ad195 | 687 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 688 | else |
3567439c | 689 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
690 | } |
691 | } | |
692 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 693 | return 1; |
c906108c | 694 | |
c906108c SS |
695 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
696 | ||
697 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
698 | CORE_ADDR. But when we detect unsigned wraparound in the | |
699 | CORE_ADDR math, we ignore this test and print the offset, | |
700 | because addr+max_symbolic_offset has wrapped through the end | |
701 | of the address space back to the beginning, giving bogus comparison. */ | |
702 | if (addr > name_location + max_symbolic_offset | |
703 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 704 | return 1; |
c906108c | 705 | |
dfcd3bfb JM |
706 | *offset = addr - name_location; |
707 | ||
708 | *name = xstrdup (name_temp); | |
c906108c | 709 | |
c906108c SS |
710 | if (print_symbol_filename) |
711 | { | |
712 | struct symtab_and_line sal; | |
713 | ||
714 | sal = find_pc_sect_line (addr, section, 0); | |
715 | ||
716 | if (sal.symtab) | |
dfcd3bfb JM |
717 | { |
718 | *filename = xstrdup (sal.symtab->filename); | |
719 | *line = sal.line; | |
720 | } | |
c906108c | 721 | } |
dfcd3bfb | 722 | return 0; |
c906108c SS |
723 | } |
724 | ||
c906108c SS |
725 | |
726 | /* Print address ADDR symbolically on STREAM. | |
727 | First print it as a number. Then perhaps print | |
728 | <SYMBOL + OFFSET> after the number. */ | |
729 | ||
730 | void | |
5af949e3 UW |
731 | print_address (struct gdbarch *gdbarch, |
732 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 733 | { |
5af949e3 | 734 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 735 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
736 | } |
737 | ||
2b28d209 PP |
738 | /* Return a prefix for instruction address: |
739 | "=> " for current instruction, else " ". */ | |
740 | ||
741 | const char * | |
742 | pc_prefix (CORE_ADDR addr) | |
743 | { | |
744 | if (has_stack_frames ()) | |
745 | { | |
746 | struct frame_info *frame; | |
747 | CORE_ADDR pc; | |
748 | ||
749 | frame = get_selected_frame (NULL); | |
750 | pc = get_frame_pc (frame); | |
751 | ||
752 | if (pc == addr) | |
753 | return "=> "; | |
754 | } | |
755 | return " "; | |
756 | } | |
757 | ||
c906108c SS |
758 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
759 | controls whether to print the symbolic name "raw" or demangled. | |
760 | Global setting "addressprint" controls whether to print hex address | |
761 | or not. */ | |
762 | ||
763 | void | |
5af949e3 UW |
764 | print_address_demangle (struct gdbarch *gdbarch, CORE_ADDR addr, |
765 | struct ui_file *stream, int do_demangle) | |
c906108c | 766 | { |
79a45b7d TT |
767 | struct value_print_options opts; |
768 | get_user_print_options (&opts); | |
c906108c SS |
769 | if (addr == 0) |
770 | { | |
771 | fprintf_filtered (stream, "0"); | |
772 | } | |
79a45b7d | 773 | else if (opts.addressprint) |
c906108c | 774 | { |
5af949e3 | 775 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 776 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
777 | } |
778 | else | |
779 | { | |
22e722e1 | 780 | print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c SS |
781 | } |
782 | } | |
783 | \f | |
784 | ||
c906108c SS |
785 | /* Examine data at address ADDR in format FMT. |
786 | Fetch it from memory and print on gdb_stdout. */ | |
787 | ||
788 | static void | |
5d3729b5 | 789 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 790 | { |
52f0bd74 AC |
791 | char format = 0; |
792 | char size; | |
793 | int count = 1; | |
c906108c | 794 | struct type *val_type = NULL; |
52f0bd74 AC |
795 | int i; |
796 | int maxelts; | |
79a45b7d | 797 | struct value_print_options opts; |
c906108c SS |
798 | |
799 | format = fmt.format; | |
800 | size = fmt.size; | |
801 | count = fmt.count; | |
5d3729b5 | 802 | next_gdbarch = gdbarch; |
c906108c | 803 | next_address = addr; |
c906108c SS |
804 | |
805 | /* String or instruction format implies fetch single bytes | |
806 | regardless of the specified size. */ | |
807 | if (format == 's' || format == 'i') | |
808 | size = 'b'; | |
809 | ||
5d3729b5 UW |
810 | if (size == 'a') |
811 | { | |
812 | /* Pick the appropriate size for an address. */ | |
813 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
814 | size = 'g'; | |
815 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
816 | size = 'w'; | |
817 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
818 | size = 'h'; | |
819 | else | |
820 | /* Bad value for gdbarch_ptr_bit. */ | |
821 | internal_error (__FILE__, __LINE__, | |
822 | _("failed internal consistency check")); | |
823 | } | |
824 | ||
825 | if (size == 'b') | |
df4df182 | 826 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 827 | else if (size == 'h') |
df4df182 | 828 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 829 | else if (size == 'w') |
df4df182 | 830 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 831 | else if (size == 'g') |
df4df182 | 832 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c SS |
833 | |
834 | maxelts = 8; | |
835 | if (size == 'w') | |
836 | maxelts = 4; | |
837 | if (size == 'g') | |
838 | maxelts = 2; | |
839 | if (format == 's' || format == 'i') | |
840 | maxelts = 1; | |
841 | ||
79a45b7d TT |
842 | get_formatted_print_options (&opts, format); |
843 | ||
c906108c SS |
844 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
845 | with the address of the next one at the start of each line. */ | |
846 | ||
847 | while (count > 0) | |
848 | { | |
849 | QUIT; | |
2b28d209 PP |
850 | if (format == 'i') |
851 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 852 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
853 | printf_filtered (":"); |
854 | for (i = maxelts; | |
855 | i > 0 && count > 0; | |
856 | i--, count--) | |
857 | { | |
858 | printf_filtered ("\t"); | |
859 | /* Note that print_formatted sets next_address for the next | |
860 | object. */ | |
861 | last_examine_address = next_address; | |
862 | ||
863 | if (last_examine_value) | |
864 | value_free (last_examine_value); | |
865 | ||
866 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
867 | Instead, to avoid the possibility of a fetched value not |
868 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
869 | uses it. When examining an instruction stream, the |
870 | disassembler will perform its own memory fetch using just | |
871 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
872 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
873 | is left with the byte sequence from the last complete | |
874 | instruction fetched from memory? */ | |
00a4c844 | 875 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
876 | |
877 | if (last_examine_value) | |
878 | release_value (last_examine_value); | |
879 | ||
79a45b7d | 880 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
881 | |
882 | /* Display any branch delay slots following the final insn. */ | |
883 | if (format == 'i' && count == 1) | |
884 | count += branch_delay_insns; | |
c906108c SS |
885 | } |
886 | printf_filtered ("\n"); | |
887 | gdb_flush (gdb_stdout); | |
888 | } | |
889 | } | |
890 | \f | |
891 | static void | |
fba45db2 | 892 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
893 | { |
894 | if (fmt.size != 0) | |
8a3fe4f8 | 895 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 896 | if (fmt.count != 1) |
8a3fe4f8 | 897 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 898 | cmdname); |
ea37ba09 | 899 | if (fmt.format == 'i') |
8a3fe4f8 | 900 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
901 | fmt.format, cmdname); |
902 | } | |
903 | ||
675dcf4f | 904 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 905 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 906 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
907 | |
908 | static void | |
fba45db2 | 909 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
910 | { |
911 | struct expression *expr; | |
52f0bd74 AC |
912 | struct cleanup *old_chain = 0; |
913 | char format = 0; | |
3d6d86c6 | 914 | struct value *val; |
c906108c SS |
915 | struct format_data fmt; |
916 | int cleanup = 0; | |
917 | ||
c906108c SS |
918 | if (exp && *exp == '/') |
919 | { | |
920 | exp++; | |
921 | fmt = decode_format (&exp, last_format, 0); | |
922 | validate_format (fmt, "print"); | |
923 | last_format = format = fmt.format; | |
924 | } | |
925 | else | |
926 | { | |
927 | fmt.count = 1; | |
928 | fmt.format = 0; | |
929 | fmt.size = 0; | |
a6bac58e | 930 | fmt.raw = 0; |
c906108c SS |
931 | } |
932 | ||
933 | if (exp && *exp) | |
934 | { | |
c906108c SS |
935 | struct type *type; |
936 | expr = parse_expression (exp); | |
c13c43fd | 937 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
938 | cleanup = 1; |
939 | val = evaluate_expression (expr); | |
c906108c SS |
940 | } |
941 | else | |
942 | val = access_value_history (0); | |
943 | ||
df407dfe AC |
944 | if (voidprint || (val && value_type (val) && |
945 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 946 | { |
79a45b7d | 947 | struct value_print_options opts; |
c906108c SS |
948 | int histindex = record_latest_value (val); |
949 | ||
950 | if (histindex >= 0) | |
df407dfe | 951 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 952 | else |
df407dfe | 953 | annotate_value_begin (value_type (val)); |
c906108c SS |
954 | |
955 | if (inspect) | |
675dcf4f MK |
956 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
957 | exp, histindex); | |
c5aa993b JM |
958 | else if (histindex >= 0) |
959 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
960 | |
961 | if (histindex >= 0) | |
962 | annotate_value_history_value (); | |
963 | ||
79a45b7d TT |
964 | get_formatted_print_options (&opts, format); |
965 | opts.inspect_it = inspect; | |
a6bac58e | 966 | opts.raw = fmt.raw; |
79a45b7d TT |
967 | |
968 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
969 | printf_filtered ("\n"); |
970 | ||
971 | if (histindex >= 0) | |
972 | annotate_value_history_end (); | |
973 | else | |
974 | annotate_value_end (); | |
975 | ||
976 | if (inspect) | |
c5aa993b | 977 | printf_unfiltered ("\") )\030"); |
c906108c SS |
978 | } |
979 | ||
980 | if (cleanup) | |
981 | do_cleanups (old_chain); | |
c906108c SS |
982 | } |
983 | ||
c906108c | 984 | static void |
fba45db2 | 985 | print_command (char *exp, int from_tty) |
c906108c SS |
986 | { |
987 | print_command_1 (exp, 0, 1); | |
988 | } | |
989 | ||
675dcf4f | 990 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 991 | static void |
fba45db2 | 992 | inspect_command (char *exp, int from_tty) |
c906108c SS |
993 | { |
994 | extern int epoch_interface; | |
995 | ||
996 | print_command_1 (exp, epoch_interface, 1); | |
997 | } | |
998 | ||
675dcf4f | 999 | /* Same as print, except it doesn't print void results. */ |
c906108c | 1000 | static void |
fba45db2 | 1001 | call_command (char *exp, int from_tty) |
c906108c SS |
1002 | { |
1003 | print_command_1 (exp, 0, 0); | |
1004 | } | |
1005 | ||
c906108c | 1006 | void |
fba45db2 | 1007 | output_command (char *exp, int from_tty) |
c906108c SS |
1008 | { |
1009 | struct expression *expr; | |
52f0bd74 AC |
1010 | struct cleanup *old_chain; |
1011 | char format = 0; | |
3d6d86c6 | 1012 | struct value *val; |
c906108c | 1013 | struct format_data fmt; |
79a45b7d | 1014 | struct value_print_options opts; |
c906108c | 1015 | |
777ea8f1 | 1016 | fmt.size = 0; |
a6bac58e | 1017 | fmt.raw = 0; |
777ea8f1 | 1018 | |
c906108c SS |
1019 | if (exp && *exp == '/') |
1020 | { | |
1021 | exp++; | |
1022 | fmt = decode_format (&exp, 0, 0); | |
1023 | validate_format (fmt, "output"); | |
1024 | format = fmt.format; | |
1025 | } | |
1026 | ||
1027 | expr = parse_expression (exp); | |
c13c43fd | 1028 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1029 | |
1030 | val = evaluate_expression (expr); | |
1031 | ||
df407dfe | 1032 | annotate_value_begin (value_type (val)); |
c906108c | 1033 | |
79a45b7d | 1034 | get_formatted_print_options (&opts, format); |
a6bac58e | 1035 | opts.raw = fmt.raw; |
79a45b7d | 1036 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1037 | |
1038 | annotate_value_end (); | |
1039 | ||
2acceee2 JM |
1040 | wrap_here (""); |
1041 | gdb_flush (gdb_stdout); | |
1042 | ||
c906108c SS |
1043 | do_cleanups (old_chain); |
1044 | } | |
1045 | ||
c906108c | 1046 | static void |
fba45db2 | 1047 | set_command (char *exp, int from_tty) |
c906108c SS |
1048 | { |
1049 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1050 | struct cleanup *old_chain = |
c13c43fd | 1051 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
1052 | evaluate_expression (expr); |
1053 | do_cleanups (old_chain); | |
1054 | } | |
1055 | ||
c906108c | 1056 | static void |
fba45db2 | 1057 | sym_info (char *arg, int from_tty) |
c906108c SS |
1058 | { |
1059 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1060 | struct objfile *objfile; |
1061 | struct obj_section *osect; | |
c5aa993b JM |
1062 | CORE_ADDR addr, sect_addr; |
1063 | int matches = 0; | |
1064 | unsigned int offset; | |
c906108c SS |
1065 | |
1066 | if (!arg) | |
e2e0b3e5 | 1067 | error_no_arg (_("address")); |
c906108c SS |
1068 | |
1069 | addr = parse_and_eval_address (arg); | |
1070 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1071 | { |
94277a38 DJ |
1072 | /* Only process each object file once, even if there's a separate |
1073 | debug file. */ | |
1074 | if (objfile->separate_debug_objfile_backlink) | |
1075 | continue; | |
1076 | ||
714835d5 | 1077 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1078 | |
f1f6aadf PA |
1079 | if (obj_section_addr (osect) <= sect_addr |
1080 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1081 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1082 | { |
c14c28ba | 1083 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1084 | char *loc_string; |
1085 | struct cleanup *old_chain; | |
c14c28ba | 1086 | |
c5aa993b JM |
1087 | matches = 1; |
1088 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1089 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1090 | sec_name = osect->the_bfd_section->name; | |
1091 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1092 | ||
e2fd701e DE |
1093 | /* Don't print the offset if it is zero. |
1094 | We assume there's no need to handle i18n of "sym + offset". */ | |
1095 | if (offset) | |
549ba0f8 | 1096 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1097 | else |
549ba0f8 | 1098 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1099 | |
1100 | /* Use a cleanup to free loc_string in case the user quits | |
1101 | a pagination request inside printf_filtered. */ | |
1102 | old_chain = make_cleanup (xfree, loc_string); | |
1103 | ||
c14c28ba PP |
1104 | gdb_assert (osect->objfile && osect->objfile->name); |
1105 | obj_name = osect->objfile->name; | |
1106 | ||
1107 | if (MULTI_OBJFILE_P ()) | |
1108 | if (pc_in_unmapped_range (addr, osect)) | |
1109 | if (section_is_overlay (osect)) | |
e2fd701e | 1110 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1111 | "%s overlay section %s of %s\n"), |
e2fd701e | 1112 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1113 | else |
e2fd701e | 1114 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1115 | "section %s of %s\n"), |
e2fd701e | 1116 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1117 | else |
1118 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1119 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1120 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1121 | else |
e2fd701e DE |
1122 | printf_filtered (_("%s in section %s of %s\n"), |
1123 | loc_string, sec_name, obj_name); | |
c5aa993b | 1124 | else |
c14c28ba PP |
1125 | if (pc_in_unmapped_range (addr, osect)) |
1126 | if (section_is_overlay (osect)) | |
e2fd701e | 1127 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1128 | "section %s\n"), |
e2fd701e | 1129 | loc_string, mapped, sec_name); |
c14c28ba | 1130 | else |
e2fd701e DE |
1131 | printf_filtered (_("%s in load address range of section %s\n"), |
1132 | loc_string, sec_name); | |
c14c28ba PP |
1133 | else |
1134 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1135 | printf_filtered (_("%s in %s overlay section %s\n"), |
1136 | loc_string, mapped, sec_name); | |
c14c28ba | 1137 | else |
e2fd701e DE |
1138 | printf_filtered (_("%s in section %s\n"), |
1139 | loc_string, sec_name); | |
1140 | ||
1141 | do_cleanups (old_chain); | |
c5aa993b JM |
1142 | } |
1143 | } | |
c906108c | 1144 | if (matches == 0) |
a3f17187 | 1145 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1146 | } |
1147 | ||
c906108c | 1148 | static void |
fba45db2 | 1149 | address_info (char *exp, int from_tty) |
c906108c | 1150 | { |
768a979c UW |
1151 | struct gdbarch *gdbarch; |
1152 | int regno; | |
52f0bd74 AC |
1153 | struct symbol *sym; |
1154 | struct minimal_symbol *msymbol; | |
1155 | long val; | |
714835d5 | 1156 | struct obj_section *section; |
c906108c SS |
1157 | CORE_ADDR load_addr; |
1158 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1159 | if exp is a field of `this'. */ | |
1160 | ||
1161 | if (exp == 0) | |
8a3fe4f8 | 1162 | error (_("Argument required.")); |
c906108c | 1163 | |
176620f1 | 1164 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
2570f2b7 | 1165 | &is_a_field_of_this); |
c906108c SS |
1166 | if (sym == NULL) |
1167 | { | |
1168 | if (is_a_field_of_this) | |
1169 | { | |
1170 | printf_filtered ("Symbol \""); | |
1171 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1172 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1173 | printf_filtered ("\" is a field of the local class variable "); |
1174 | if (current_language->la_language == language_objc) | |
2625d86c | 1175 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1176 | else |
2625d86c | 1177 | printf_filtered ("`this'\n"); |
c906108c SS |
1178 | return; |
1179 | } | |
1180 | ||
1181 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1182 | ||
1183 | if (msymbol != NULL) | |
1184 | { | |
5af949e3 | 1185 | gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
c906108c SS |
1186 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); |
1187 | ||
1188 | printf_filtered ("Symbol \""); | |
1189 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1190 | current_language->la_language, DMGL_ANSI); | |
1191 | printf_filtered ("\" is at "); | |
5af949e3 | 1192 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1193 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1194 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1195 | if (section_is_overlay (section)) |
1196 | { | |
1197 | load_addr = overlay_unmapped_address (load_addr, section); | |
1198 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1199 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1200 | printf_filtered (" in overlay section %s", |
1201 | section->the_bfd_section->name); | |
c906108c SS |
1202 | } |
1203 | printf_filtered (".\n"); | |
1204 | } | |
1205 | else | |
8a3fe4f8 | 1206 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1207 | return; |
1208 | } | |
1209 | ||
1210 | printf_filtered ("Symbol \""); | |
3567439c | 1211 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1212 | current_language->la_language, DMGL_ANSI); |
1213 | printf_filtered ("\" is "); | |
c5aa993b | 1214 | val = SYMBOL_VALUE (sym); |
714835d5 | 1215 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1216 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1217 | |
1218 | switch (SYMBOL_CLASS (sym)) | |
1219 | { | |
1220 | case LOC_CONST: | |
1221 | case LOC_CONST_BYTES: | |
1222 | printf_filtered ("constant"); | |
1223 | break; | |
1224 | ||
1225 | case LOC_LABEL: | |
1226 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1227 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1228 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1229 | if (section_is_overlay (section)) |
1230 | { | |
1231 | load_addr = overlay_unmapped_address (load_addr, section); | |
1232 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1233 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1234 | printf_filtered (" in overlay section %s", |
1235 | section->the_bfd_section->name); | |
c906108c SS |
1236 | } |
1237 | break; | |
1238 | ||
4c2df51b | 1239 | case LOC_COMPUTED: |
a67af2b9 | 1240 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1241 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1242 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1243 | function) location in a function's symbol. Oops! For the |
1244 | moment enable this when/where applicable. */ | |
768a979c | 1245 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout); |
4c2df51b DJ |
1246 | break; |
1247 | ||
c906108c | 1248 | case LOC_REGISTER: |
768a979c UW |
1249 | /* GDBARCH is the architecture associated with the objfile the symbol |
1250 | is defined in; the target architecture may be different, and may | |
1251 | provide additional registers. However, we do not know the target | |
1252 | architecture at this point. We assume the objfile architecture | |
1253 | will contain all the standard registers that occur in debug info | |
1254 | in that objfile. */ | |
1255 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1256 | ||
2a2d4dc3 AS |
1257 | if (SYMBOL_IS_ARGUMENT (sym)) |
1258 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1259 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1260 | else |
1261 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1262 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1263 | break; |
1264 | ||
1265 | case LOC_STATIC: | |
a3f17187 | 1266 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1267 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1268 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1269 | if (section_is_overlay (section)) |
1270 | { | |
1271 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1272 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1273 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1274 | printf_filtered (_(" in overlay section %s"), |
1275 | section->the_bfd_section->name); | |
c906108c SS |
1276 | } |
1277 | break; | |
1278 | ||
c906108c | 1279 | case LOC_REGPARM_ADDR: |
768a979c UW |
1280 | /* Note comment at LOC_REGISTER. */ |
1281 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1282 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1283 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1284 | break; |
1285 | ||
1286 | case LOC_ARG: | |
a3f17187 | 1287 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1288 | break; |
1289 | ||
c906108c | 1290 | case LOC_LOCAL: |
a3f17187 | 1291 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1292 | break; |
1293 | ||
1294 | case LOC_REF_ARG: | |
a3f17187 | 1295 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1296 | break; |
1297 | ||
c906108c | 1298 | case LOC_TYPEDEF: |
a3f17187 | 1299 | printf_filtered (_("a typedef")); |
c906108c SS |
1300 | break; |
1301 | ||
1302 | case LOC_BLOCK: | |
a3f17187 | 1303 | printf_filtered (_("a function at address ")); |
675dcf4f | 1304 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1305 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1306 | if (section_is_overlay (section)) |
1307 | { | |
1308 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1309 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1310 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1311 | printf_filtered (_(" in overlay section %s"), |
1312 | section->the_bfd_section->name); | |
c906108c SS |
1313 | } |
1314 | break; | |
1315 | ||
1316 | case LOC_UNRESOLVED: | |
1317 | { | |
1318 | struct minimal_symbol *msym; | |
1319 | ||
3567439c | 1320 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1321 | if (msym == NULL) |
1322 | printf_filtered ("unresolved"); | |
1323 | else | |
1324 | { | |
714835d5 | 1325 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1326 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1327 | |
1328 | if (section | |
1329 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1330 | printf_filtered (_("a thread-local variable at offset %s " | |
1331 | "in the thread-local storage for `%s'"), | |
5af949e3 UW |
1332 | paddress (gdbarch, load_addr), |
1333 | section->objfile->name); | |
e0740f77 | 1334 | else |
c906108c | 1335 | { |
e0740f77 | 1336 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1337 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1338 | if (section_is_overlay (section)) |
1339 | { | |
1340 | load_addr = overlay_unmapped_address (load_addr, section); | |
1341 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1342 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1343 | printf_filtered (_(" in overlay section %s"), |
1344 | section->the_bfd_section->name); | |
1345 | } | |
c906108c SS |
1346 | } |
1347 | } | |
1348 | } | |
1349 | break; | |
1350 | ||
c906108c | 1351 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1352 | printf_filtered (_("optimized out")); |
c906108c | 1353 | break; |
c5aa993b | 1354 | |
c906108c | 1355 | default: |
a3f17187 | 1356 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1357 | break; |
1358 | } | |
1359 | printf_filtered (".\n"); | |
1360 | } | |
1361 | \f | |
675dcf4f MK |
1362 | |
1363 | static void | |
fba45db2 | 1364 | x_command (char *exp, int from_tty) |
c906108c SS |
1365 | { |
1366 | struct expression *expr; | |
1367 | struct format_data fmt; | |
1368 | struct cleanup *old_chain; | |
1369 | struct value *val; | |
1370 | ||
a6bac58e | 1371 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1372 | fmt.size = last_size; |
1373 | fmt.count = 1; | |
a6bac58e | 1374 | fmt.raw = 0; |
c906108c SS |
1375 | |
1376 | if (exp && *exp == '/') | |
1377 | { | |
1378 | exp++; | |
1379 | fmt = decode_format (&exp, last_format, last_size); | |
1380 | } | |
1381 | ||
1382 | /* If we have an expression, evaluate it and use it as the address. */ | |
1383 | ||
1384 | if (exp != 0 && *exp != 0) | |
1385 | { | |
1386 | expr = parse_expression (exp); | |
675dcf4f MK |
1387 | /* Cause expression not to be there any more if this command is |
1388 | repeated with Newline. But don't clobber a user-defined | |
1389 | command's definition. */ | |
c906108c SS |
1390 | if (from_tty) |
1391 | *exp = 0; | |
c13c43fd | 1392 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1393 | val = evaluate_expression (expr); |
df407dfe | 1394 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1395 | val = value_ind (val); |
1396 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1397 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1398 | if (/* last_format == 'i' && */ |
df407dfe | 1399 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1400 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1401 | next_address = value_address (val); |
c906108c | 1402 | else |
1aa20aa8 | 1403 | next_address = value_as_address (val); |
5d3729b5 UW |
1404 | |
1405 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1406 | do_cleanups (old_chain); |
1407 | } | |
1408 | ||
5d3729b5 UW |
1409 | if (!next_gdbarch) |
1410 | error_no_arg (_("starting display address")); | |
1411 | ||
1412 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1413 | |
675dcf4f MK |
1414 | /* If the examine succeeds, we remember its size and format for next |
1415 | time. */ | |
c906108c SS |
1416 | last_size = fmt.size; |
1417 | last_format = fmt.format; | |
1418 | ||
1419 | /* Set a couple of internal variables if appropriate. */ | |
1420 | if (last_examine_value) | |
1421 | { | |
1422 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1423 | the correct pointer type. */ |
4478b372 | 1424 | struct type *pointer_type |
df407dfe | 1425 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1426 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1427 | value_from_pointer (pointer_type, |
1428 | last_examine_address)); | |
c5aa993b | 1429 | |
675dcf4f MK |
1430 | /* Make contents of last address examined available to the user |
1431 | as $__. If the last value has not been fetched from memory | |
1432 | then don't fetch it now; instead mark it by voiding the $__ | |
1433 | variable. */ | |
d69fe07e | 1434 | if (value_lazy (last_examine_value)) |
4fa62494 | 1435 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1436 | else |
1437 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1438 | } | |
1439 | } | |
c906108c | 1440 | \f |
c5aa993b | 1441 | |
c906108c SS |
1442 | /* Add an expression to the auto-display chain. |
1443 | Specify the expression. */ | |
1444 | ||
1445 | static void | |
fba45db2 | 1446 | display_command (char *exp, int from_tty) |
c906108c SS |
1447 | { |
1448 | struct format_data fmt; | |
52f0bd74 AC |
1449 | struct expression *expr; |
1450 | struct display *new; | |
c906108c SS |
1451 | int display_it = 1; |
1452 | ||
1453 | #if defined(TUI) | |
021e7609 AC |
1454 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1455 | `tui_version'. */ | |
fd33e6cb | 1456 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1457 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1458 | #endif |
1459 | ||
1460 | if (display_it) | |
1461 | { | |
1462 | if (exp == 0) | |
1463 | { | |
1464 | do_displays (); | |
1465 | return; | |
1466 | } | |
1467 | ||
1468 | if (*exp == '/') | |
1469 | { | |
1470 | exp++; | |
1471 | fmt = decode_format (&exp, 0, 0); | |
1472 | if (fmt.size && fmt.format == 0) | |
1473 | fmt.format = 'x'; | |
1474 | if (fmt.format == 'i' || fmt.format == 's') | |
1475 | fmt.size = 'b'; | |
1476 | } | |
1477 | else | |
1478 | { | |
1479 | fmt.format = 0; | |
1480 | fmt.size = 0; | |
1481 | fmt.count = 0; | |
a6bac58e | 1482 | fmt.raw = 0; |
c906108c SS |
1483 | } |
1484 | ||
a3247a22 | 1485 | innermost_block = NULL; |
c906108c SS |
1486 | expr = parse_expression (exp); |
1487 | ||
1488 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1489 | ||
fa8a61dc | 1490 | new->exp_string = xstrdup (exp); |
c906108c SS |
1491 | new->exp = expr; |
1492 | new->block = innermost_block; | |
6c95b8df | 1493 | new->pspace = current_program_space; |
c906108c SS |
1494 | new->next = display_chain; |
1495 | new->number = ++display_number; | |
1496 | new->format = fmt; | |
b5de0fa7 | 1497 | new->enabled_p = 1; |
c906108c SS |
1498 | display_chain = new; |
1499 | ||
1500 | if (from_tty && target_has_execution) | |
1501 | do_one_display (new); | |
1502 | ||
1503 | dont_repeat (); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | static void | |
fba45db2 | 1508 | free_display (struct display *d) |
c906108c | 1509 | { |
fa8a61dc | 1510 | xfree (d->exp_string); |
b8c9b27d KB |
1511 | xfree (d->exp); |
1512 | xfree (d); | |
c906108c SS |
1513 | } |
1514 | ||
675dcf4f MK |
1515 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1516 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1517 | |
1518 | void | |
fba45db2 | 1519 | clear_displays (void) |
c906108c | 1520 | { |
52f0bd74 | 1521 | struct display *d; |
c906108c SS |
1522 | |
1523 | while ((d = display_chain) != NULL) | |
1524 | { | |
c906108c | 1525 | display_chain = d->next; |
fa8a61dc | 1526 | free_display (d); |
c906108c SS |
1527 | } |
1528 | } | |
1529 | ||
1530 | /* Delete the auto-display number NUM. */ | |
1531 | ||
1532 | static void | |
fba45db2 | 1533 | delete_display (int num) |
c906108c | 1534 | { |
52f0bd74 | 1535 | struct display *d1, *d; |
c906108c SS |
1536 | |
1537 | if (!display_chain) | |
8a3fe4f8 | 1538 | error (_("No display number %d."), num); |
c906108c SS |
1539 | |
1540 | if (display_chain->number == num) | |
1541 | { | |
1542 | d1 = display_chain; | |
1543 | display_chain = d1->next; | |
1544 | free_display (d1); | |
1545 | } | |
1546 | else | |
c5aa993b | 1547 | for (d = display_chain;; d = d->next) |
c906108c SS |
1548 | { |
1549 | if (d->next == 0) | |
8a3fe4f8 | 1550 | error (_("No display number %d."), num); |
c906108c SS |
1551 | if (d->next->number == num) |
1552 | { | |
1553 | d1 = d->next; | |
1554 | d->next = d1->next; | |
1555 | free_display (d1); | |
1556 | break; | |
1557 | } | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | /* Delete some values from the auto-display chain. | |
1562 | Specify the element numbers. */ | |
1563 | ||
1564 | static void | |
fba45db2 | 1565 | undisplay_command (char *args, int from_tty) |
c906108c | 1566 | { |
52f0bd74 AC |
1567 | char *p = args; |
1568 | char *p1; | |
1569 | int num; | |
c906108c SS |
1570 | |
1571 | if (args == 0) | |
1572 | { | |
9e2f0ad4 | 1573 | if (query (_("Delete all auto-display expressions? "))) |
c906108c SS |
1574 | clear_displays (); |
1575 | dont_repeat (); | |
1576 | return; | |
1577 | } | |
1578 | ||
1579 | while (*p) | |
1580 | { | |
1581 | p1 = p; | |
c5aa993b JM |
1582 | while (*p1 >= '0' && *p1 <= '9') |
1583 | p1++; | |
c906108c | 1584 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1585 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1586 | |
1587 | num = atoi (p); | |
1588 | ||
1589 | delete_display (num); | |
1590 | ||
1591 | p = p1; | |
c5aa993b JM |
1592 | while (*p == ' ' || *p == '\t') |
1593 | p++; | |
c906108c SS |
1594 | } |
1595 | dont_repeat (); | |
1596 | } | |
1597 | ||
1598 | /* Display a single auto-display. | |
1599 | Do nothing if the display cannot be printed in the current context, | |
1600 | or if the display is disabled. */ | |
1601 | ||
1602 | static void | |
fba45db2 | 1603 | do_one_display (struct display *d) |
c906108c SS |
1604 | { |
1605 | int within_current_scope; | |
1606 | ||
b5de0fa7 | 1607 | if (d->enabled_p == 0) |
c906108c SS |
1608 | return; |
1609 | ||
704e9165 UW |
1610 | /* The expression carries the architecture that was used at parse time. |
1611 | This is a problem if the expression depends on architecture features | |
1612 | (e.g. register numbers), and the current architecture is now different. | |
1613 | For example, a display statement like "display/i $pc" is expected to | |
1614 | display the PC register of the current architecture, not the arch at | |
1615 | the time the display command was given. Therefore, we re-parse the | |
1616 | expression if the current architecture has changed. */ | |
1617 | if (d->exp != NULL && d->exp->gdbarch != get_current_arch ()) | |
1618 | { | |
1619 | xfree (d->exp); | |
1620 | d->exp = NULL; | |
1621 | d->block = NULL; | |
1622 | } | |
1623 | ||
a3247a22 PP |
1624 | if (d->exp == NULL) |
1625 | { | |
1626 | volatile struct gdb_exception ex; | |
1627 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1628 | { | |
1629 | innermost_block = NULL; | |
1630 | d->exp = parse_expression (d->exp_string); | |
1631 | d->block = innermost_block; | |
1632 | } | |
1633 | if (ex.reason < 0) | |
1634 | { | |
1635 | /* Can't re-parse the expression. Disable this display item. */ | |
1636 | d->enabled_p = 0; | |
1637 | warning (_("Unable to display \"%s\": %s"), | |
1638 | d->exp_string, ex.message); | |
1639 | return; | |
1640 | } | |
1641 | } | |
1642 | ||
c906108c | 1643 | if (d->block) |
6c95b8df PA |
1644 | { |
1645 | if (d->pspace == current_program_space) | |
1646 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1647 | else | |
1648 | within_current_scope = 0; | |
1649 | } | |
c906108c SS |
1650 | else |
1651 | within_current_scope = 1; | |
1652 | if (!within_current_scope) | |
1653 | return; | |
1654 | ||
1655 | current_display_number = d->number; | |
1656 | ||
1657 | annotate_display_begin (); | |
1658 | printf_filtered ("%d", d->number); | |
1659 | annotate_display_number_end (); | |
1660 | printf_filtered (": "); | |
1661 | if (d->format.size) | |
1662 | { | |
1663 | CORE_ADDR addr; | |
3d6d86c6 | 1664 | struct value *val; |
c906108c SS |
1665 | |
1666 | annotate_display_format (); | |
1667 | ||
1668 | printf_filtered ("x/"); | |
1669 | if (d->format.count != 1) | |
1670 | printf_filtered ("%d", d->format.count); | |
1671 | printf_filtered ("%c", d->format.format); | |
1672 | if (d->format.format != 'i' && d->format.format != 's') | |
1673 | printf_filtered ("%c", d->format.size); | |
1674 | printf_filtered (" "); | |
1675 | ||
1676 | annotate_display_expression (); | |
1677 | ||
fa8a61dc | 1678 | puts_filtered (d->exp_string); |
c906108c SS |
1679 | annotate_display_expression_end (); |
1680 | ||
6a2eb474 | 1681 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1682 | printf_filtered ("\n"); |
1683 | else | |
1684 | printf_filtered (" "); | |
c5aa993b | 1685 | |
c906108c | 1686 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1687 | addr = value_as_address (val); |
c906108c | 1688 | if (d->format.format == 'i') |
d80b854b | 1689 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); |
c906108c SS |
1690 | |
1691 | annotate_display_value (); | |
1692 | ||
5d3729b5 | 1693 | do_examine (d->format, d->exp->gdbarch, addr); |
c906108c SS |
1694 | } |
1695 | else | |
1696 | { | |
79a45b7d TT |
1697 | struct value_print_options opts; |
1698 | ||
c906108c SS |
1699 | annotate_display_format (); |
1700 | ||
1701 | if (d->format.format) | |
1702 | printf_filtered ("/%c ", d->format.format); | |
1703 | ||
1704 | annotate_display_expression (); | |
1705 | ||
fa8a61dc | 1706 | puts_filtered (d->exp_string); |
c906108c SS |
1707 | annotate_display_expression_end (); |
1708 | ||
1709 | printf_filtered (" = "); | |
1710 | ||
1711 | annotate_display_expression (); | |
1712 | ||
79a45b7d | 1713 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1714 | opts.raw = d->format.raw; |
c906108c | 1715 | print_formatted (evaluate_expression (d->exp), |
79a45b7d | 1716 | d->format.size, &opts, gdb_stdout); |
c906108c SS |
1717 | printf_filtered ("\n"); |
1718 | } | |
1719 | ||
1720 | annotate_display_end (); | |
1721 | ||
1722 | gdb_flush (gdb_stdout); | |
1723 | current_display_number = -1; | |
1724 | } | |
1725 | ||
1726 | /* Display all of the values on the auto-display chain which can be | |
1727 | evaluated in the current scope. */ | |
1728 | ||
1729 | void | |
fba45db2 | 1730 | do_displays (void) |
c906108c | 1731 | { |
52f0bd74 | 1732 | struct display *d; |
c906108c SS |
1733 | |
1734 | for (d = display_chain; d; d = d->next) | |
1735 | do_one_display (d); | |
1736 | } | |
1737 | ||
1738 | /* Delete the auto-display which we were in the process of displaying. | |
1739 | This is done when there is an error or a signal. */ | |
1740 | ||
1741 | void | |
fba45db2 | 1742 | disable_display (int num) |
c906108c | 1743 | { |
52f0bd74 | 1744 | struct display *d; |
c906108c SS |
1745 | |
1746 | for (d = display_chain; d; d = d->next) | |
1747 | if (d->number == num) | |
1748 | { | |
b5de0fa7 | 1749 | d->enabled_p = 0; |
c906108c SS |
1750 | return; |
1751 | } | |
a3f17187 | 1752 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1753 | } |
c5aa993b | 1754 | |
c906108c | 1755 | void |
fba45db2 | 1756 | disable_current_display (void) |
c906108c SS |
1757 | { |
1758 | if (current_display_number >= 0) | |
1759 | { | |
1760 | disable_display (current_display_number); | |
675dcf4f MK |
1761 | fprintf_unfiltered (gdb_stderr, _("\ |
1762 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1763 | current_display_number); |
c906108c SS |
1764 | } |
1765 | current_display_number = -1; | |
1766 | } | |
1767 | ||
1768 | static void | |
fba45db2 | 1769 | display_info (char *ignore, int from_tty) |
c906108c | 1770 | { |
52f0bd74 | 1771 | struct display *d; |
c906108c SS |
1772 | |
1773 | if (!display_chain) | |
a3f17187 | 1774 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1775 | else |
a3f17187 AC |
1776 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1777 | Num Enb Expression\n")); | |
c906108c SS |
1778 | |
1779 | for (d = display_chain; d; d = d->next) | |
1780 | { | |
b5de0fa7 | 1781 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1782 | if (d->format.size) |
1783 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1784 | d->format.format); |
c906108c SS |
1785 | else if (d->format.format) |
1786 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1787 | puts_filtered (d->exp_string); |
ae767bfb | 1788 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1789 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1790 | printf_filtered ("\n"); |
1791 | gdb_flush (gdb_stdout); | |
1792 | } | |
1793 | } | |
1794 | ||
1795 | static void | |
fba45db2 | 1796 | enable_display (char *args, int from_tty) |
c906108c | 1797 | { |
52f0bd74 AC |
1798 | char *p = args; |
1799 | char *p1; | |
1800 | int num; | |
1801 | struct display *d; | |
c906108c SS |
1802 | |
1803 | if (p == 0) | |
1804 | { | |
1805 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1806 | d->enabled_p = 1; |
c906108c SS |
1807 | } |
1808 | else | |
1809 | while (*p) | |
1810 | { | |
1811 | p1 = p; | |
1812 | while (*p1 >= '0' && *p1 <= '9') | |
1813 | p1++; | |
1814 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1815 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1816 | |
c906108c | 1817 | num = atoi (p); |
c5aa993b | 1818 | |
c906108c SS |
1819 | for (d = display_chain; d; d = d->next) |
1820 | if (d->number == num) | |
1821 | { | |
b5de0fa7 | 1822 | d->enabled_p = 1; |
c906108c SS |
1823 | goto win; |
1824 | } | |
a3f17187 | 1825 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1826 | win: |
1827 | p = p1; | |
1828 | while (*p == ' ' || *p == '\t') | |
1829 | p++; | |
1830 | } | |
1831 | } | |
1832 | ||
c906108c | 1833 | static void |
fba45db2 | 1834 | disable_display_command (char *args, int from_tty) |
c906108c | 1835 | { |
52f0bd74 AC |
1836 | char *p = args; |
1837 | char *p1; | |
1838 | struct display *d; | |
c906108c SS |
1839 | |
1840 | if (p == 0) | |
1841 | { | |
1842 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1843 | d->enabled_p = 0; |
c906108c SS |
1844 | } |
1845 | else | |
1846 | while (*p) | |
1847 | { | |
1848 | p1 = p; | |
1849 | while (*p1 >= '0' && *p1 <= '9') | |
1850 | p1++; | |
1851 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1852 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1853 | |
c906108c SS |
1854 | disable_display (atoi (p)); |
1855 | ||
1856 | p = p1; | |
1857 | while (*p == ' ' || *p == '\t') | |
1858 | p++; | |
1859 | } | |
1860 | } | |
a3247a22 PP |
1861 | |
1862 | /* Return 1 if D uses SOLIB (and will become dangling when SOLIB | |
1863 | is unloaded), otherwise return 0. */ | |
1864 | ||
1865 | static int | |
1866 | display_uses_solib_p (const struct display *d, | |
1867 | const struct so_list *solib) | |
1868 | { | |
36dc683c | 1869 | int endpos; |
a3247a22 | 1870 | struct expression *const exp = d->exp; |
36dc683c | 1871 | const union exp_element *const elts = exp->elts; |
a3247a22 PP |
1872 | |
1873 | if (d->block != NULL | |
6c95b8df | 1874 | && d->pspace == solib->pspace |
5fd1a349 | 1875 | && solib_contains_address_p (solib, d->block->startaddr)) |
a3247a22 PP |
1876 | return 1; |
1877 | ||
36dc683c | 1878 | for (endpos = exp->nelts; endpos > 0; ) |
a3247a22 | 1879 | { |
36dc683c DE |
1880 | int i, args, oplen = 0; |
1881 | ||
1882 | exp->language_defn->la_exp_desc->operator_length (exp, endpos, | |
1883 | &oplen, &args); | |
1884 | gdb_assert (oplen > 0); | |
a3247a22 | 1885 | |
36dc683c | 1886 | i = endpos - oplen; |
a3247a22 PP |
1887 | if (elts[i].opcode == OP_VAR_VALUE) |
1888 | { | |
1889 | const struct block *const block = elts[i + 1].block; | |
1890 | const struct symbol *const symbol = elts[i + 2].symbol; | |
a3247a22 PP |
1891 | |
1892 | if (block != NULL | |
6c95b8df PA |
1893 | && solib_contains_address_p (solib, |
1894 | block->startaddr)) | |
a3247a22 PP |
1895 | return 1; |
1896 | ||
52334bf5 JK |
1897 | /* SYMBOL_OBJ_SECTION (symbol) may be NULL. */ |
1898 | if (SYMBOL_SYMTAB (symbol)->objfile == solib->objfile) | |
a3247a22 PP |
1899 | return 1; |
1900 | } | |
36dc683c | 1901 | endpos -= oplen; |
a3247a22 | 1902 | } |
36dc683c | 1903 | |
a3247a22 PP |
1904 | return 0; |
1905 | } | |
1906 | ||
1907 | /* display_chain items point to blocks and expressions. Some expressions in | |
1908 | turn may point to symbols. | |
1909 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1910 | obstack_free'd when a shared library is unloaded. | |
1911 | Clear pointers that are about to become dangling. | |
1912 | Both .exp and .block fields will be restored next time we need to display | |
1913 | an item by re-parsing .exp_string field in the new execution context. */ | |
1914 | ||
1915 | static void | |
1916 | clear_dangling_display_expressions (struct so_list *solib) | |
1917 | { | |
1918 | struct display *d; | |
1919 | struct objfile *objfile = NULL; | |
1920 | ||
1921 | for (d = display_chain; d; d = d->next) | |
1922 | { | |
1923 | if (d->exp && display_uses_solib_p (d, solib)) | |
1924 | { | |
1925 | xfree (d->exp); | |
1926 | d->exp = NULL; | |
1927 | d->block = NULL; | |
1928 | } | |
1929 | } | |
1930 | } | |
c906108c | 1931 | \f |
c5aa993b | 1932 | |
675dcf4f | 1933 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1934 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1935 | name will be used. STREAM is the ui_file on which to print the | |
1936 | value. INDENT specifies the number of indent levels to print | |
1937 | before printing the variable name. */ | |
c906108c SS |
1938 | |
1939 | void | |
aad95b57 TT |
1940 | print_variable_and_value (const char *name, struct symbol *var, |
1941 | struct frame_info *frame, | |
1942 | struct ui_file *stream, int indent) | |
c906108c | 1943 | { |
aad95b57 | 1944 | struct value *val; |
79a45b7d | 1945 | struct value_print_options opts; |
c906108c | 1946 | |
aad95b57 TT |
1947 | if (!name) |
1948 | name = SYMBOL_PRINT_NAME (var); | |
1949 | ||
1950 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
1951 | ||
1952 | val = read_var_value (var, frame); | |
79a45b7d | 1953 | get_user_print_options (&opts); |
aad95b57 TT |
1954 | common_val_print (val, stream, indent, &opts, current_language); |
1955 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
1956 | } |
1957 | ||
c906108c | 1958 | static void |
fba45db2 | 1959 | printf_command (char *arg, int from_tty) |
c906108c | 1960 | { |
52f0bd74 AC |
1961 | char *f = NULL; |
1962 | char *s = arg; | |
c906108c | 1963 | char *string = NULL; |
3d6d86c6 | 1964 | struct value **val_args; |
c906108c SS |
1965 | char *substrings; |
1966 | char *current_substring; | |
1967 | int nargs = 0; | |
1968 | int allocated_args = 20; | |
1969 | struct cleanup *old_cleanups; | |
1970 | ||
675dcf4f | 1971 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1972 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1973 | |
1974 | if (s == 0) | |
e2e0b3e5 | 1975 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1976 | |
1977 | /* Skip white space before format string */ | |
c5aa993b JM |
1978 | while (*s == ' ' || *s == '\t') |
1979 | s++; | |
c906108c | 1980 | |
675dcf4f | 1981 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1982 | if (*s++ != '"') |
8a3fe4f8 | 1983 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1984 | |
1985 | /* Parse the format-control string and copy it into the string STRING, | |
1986 | processing some kinds of escape sequence. */ | |
1987 | ||
1988 | f = string = (char *) alloca (strlen (s) + 1); | |
1989 | ||
1990 | while (*s != '"') | |
1991 | { | |
1992 | int c = *s++; | |
1993 | switch (c) | |
1994 | { | |
1995 | case '\0': | |
8a3fe4f8 | 1996 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1997 | |
1998 | case '\\': | |
1999 | switch (c = *s++) | |
2000 | { | |
2001 | case '\\': | |
2002 | *f++ = '\\'; | |
2003 | break; | |
2004 | case 'a': | |
c906108c | 2005 | *f++ = '\a'; |
c906108c SS |
2006 | break; |
2007 | case 'b': | |
2008 | *f++ = '\b'; | |
2009 | break; | |
2010 | case 'f': | |
2011 | *f++ = '\f'; | |
2012 | break; | |
2013 | case 'n': | |
2014 | *f++ = '\n'; | |
2015 | break; | |
2016 | case 'r': | |
2017 | *f++ = '\r'; | |
2018 | break; | |
2019 | case 't': | |
2020 | *f++ = '\t'; | |
2021 | break; | |
2022 | case 'v': | |
2023 | *f++ = '\v'; | |
2024 | break; | |
2025 | case '"': | |
2026 | *f++ = '"'; | |
2027 | break; | |
2028 | default: | |
2029 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 2030 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
2031 | c); |
2032 | } | |
2033 | break; | |
2034 | ||
2035 | default: | |
2036 | *f++ = c; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | /* Skip over " and following space and comma. */ | |
2041 | s++; | |
2042 | *f++ = '\0'; | |
c5aa993b JM |
2043 | while (*s == ' ' || *s == '\t') |
2044 | s++; | |
c906108c SS |
2045 | |
2046 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2047 | error (_("Invalid argument syntax")); |
c906108c | 2048 | |
c5aa993b JM |
2049 | if (*s == ',') |
2050 | s++; | |
2051 | while (*s == ' ' || *s == '\t') | |
2052 | s++; | |
c906108c SS |
2053 | |
2054 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2055 | substrings = alloca (strlen (string) * 2); | |
2056 | current_substring = substrings; | |
2057 | ||
2058 | { | |
2059 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2060 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2061 | something of the right size. */ | |
2062 | ||
c5aa993b JM |
2063 | enum argclass |
2064 | { | |
6c7a06a3 TT |
2065 | int_arg, long_arg, long_long_arg, ptr_arg, |
2066 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 2067 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 2068 | }; |
c906108c SS |
2069 | enum argclass *argclass; |
2070 | enum argclass this_argclass; | |
2071 | char *last_arg; | |
2072 | int nargs_wanted; | |
c906108c SS |
2073 | int i; |
2074 | ||
2075 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2076 | nargs_wanted = 0; | |
2077 | f = string; | |
2078 | last_arg = string; | |
2079 | while (*f) | |
2080 | if (*f++ == '%') | |
2081 | { | |
46e9880c DJ |
2082 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2083 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2084 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2085 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2086 | int bad = 0; |
2087 | ||
2088 | /* Check the validity of the format specifier, and work | |
2089 | out what argument it expects. We only accept C89 | |
2090 | format strings, with the exception of long long (which | |
2091 | we autoconf for). */ | |
2092 | ||
2093 | /* Skip over "%%". */ | |
2094 | if (*f == '%') | |
c906108c | 2095 | { |
c906108c | 2096 | f++; |
46e9880c | 2097 | continue; |
c906108c | 2098 | } |
46e9880c DJ |
2099 | |
2100 | /* The first part of a format specifier is a set of flag | |
2101 | characters. */ | |
2102 | while (strchr ("0-+ #", *f)) | |
2103 | { | |
2104 | if (*f == '#') | |
2105 | seen_hash = 1; | |
2106 | else if (*f == '0') | |
2107 | seen_zero = 1; | |
2108 | else if (*f == ' ') | |
2109 | seen_space = 1; | |
2110 | else if (*f == '+') | |
2111 | seen_plus = 1; | |
2112 | f++; | |
2113 | } | |
2114 | ||
2115 | /* The next part of a format specifier is a width. */ | |
2116 | while (strchr ("0123456789", *f)) | |
2117 | f++; | |
2118 | ||
2119 | /* The next part of a format specifier is a precision. */ | |
2120 | if (*f == '.') | |
2121 | { | |
2122 | seen_prec = 1; | |
2123 | f++; | |
2124 | while (strchr ("0123456789", *f)) | |
2125 | f++; | |
2126 | } | |
2127 | ||
2128 | /* The next part of a format specifier is a length modifier. */ | |
2129 | if (*f == 'h') | |
2130 | { | |
2131 | seen_h = 1; | |
2132 | f++; | |
2133 | } | |
2134 | else if (*f == 'l') | |
2135 | { | |
2136 | f++; | |
2137 | lcount++; | |
2138 | if (*f == 'l') | |
2139 | { | |
2140 | f++; | |
2141 | lcount++; | |
2142 | } | |
2143 | } | |
2144 | else if (*f == 'L') | |
2145 | { | |
2146 | seen_big_l = 1; | |
2147 | f++; | |
2148 | } | |
0aea4bf3 LM |
2149 | /* Decimal32 modifier. */ |
2150 | else if (*f == 'H') | |
2151 | { | |
2152 | seen_big_h = 1; | |
2153 | f++; | |
2154 | } | |
2155 | /* Decimal64 and Decimal128 modifiers. */ | |
2156 | else if (*f == 'D') | |
2157 | { | |
2158 | f++; | |
2159 | ||
2160 | /* Check for a Decimal128. */ | |
2161 | if (*f == 'D') | |
2162 | { | |
2163 | f++; | |
2164 | seen_double_big_d = 1; | |
2165 | } | |
2166 | else | |
2167 | seen_big_d = 1; | |
2168 | } | |
46e9880c | 2169 | |
c906108c SS |
2170 | switch (*f) |
2171 | { | |
46e9880c DJ |
2172 | case 'u': |
2173 | if (seen_hash) | |
2174 | bad = 1; | |
2175 | /* FALLTHROUGH */ | |
2176 | ||
2177 | case 'o': | |
2178 | case 'x': | |
2179 | case 'X': | |
2180 | if (seen_space || seen_plus) | |
2181 | bad = 1; | |
2182 | /* FALLTHROUGH */ | |
2183 | ||
2184 | case 'd': | |
2185 | case 'i': | |
2186 | if (lcount == 0) | |
2187 | this_argclass = int_arg; | |
2188 | else if (lcount == 1) | |
2189 | this_argclass = long_arg; | |
2190 | else | |
2191 | this_argclass = long_long_arg; | |
2192 | ||
2193 | if (seen_big_l) | |
2194 | bad = 1; | |
2195 | break; | |
2196 | ||
2197 | case 'c': | |
6c7a06a3 TT |
2198 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2199 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2200 | bad = 1; |
2201 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2202 | bad = 1; | |
2203 | break; | |
2204 | ||
2205 | case 'p': | |
2206 | this_argclass = ptr_arg; | |
2207 | if (lcount || seen_h || seen_big_l) | |
2208 | bad = 1; | |
2209 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2210 | bad = 1; | |
2211 | break; | |
2212 | ||
c906108c | 2213 | case 's': |
6c7a06a3 TT |
2214 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2215 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2216 | bad = 1; |
2217 | if (seen_zero || seen_space || seen_plus) | |
2218 | bad = 1; | |
c906108c SS |
2219 | break; |
2220 | ||
2221 | case 'e': | |
2222 | case 'f': | |
2223 | case 'g': | |
46e9880c DJ |
2224 | case 'E': |
2225 | case 'G': | |
0aea4bf3 LM |
2226 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2227 | this_argclass = decfloat_arg; | |
2228 | else if (seen_big_l) | |
46e9880c DJ |
2229 | this_argclass = long_double_arg; |
2230 | else | |
2231 | this_argclass = double_arg; | |
2232 | ||
2233 | if (lcount || seen_h) | |
2234 | bad = 1; | |
c906108c SS |
2235 | break; |
2236 | ||
2237 | case '*': | |
8a3fe4f8 | 2238 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2239 | |
2240 | case 'n': | |
8a3fe4f8 | 2241 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2242 | |
46e9880c DJ |
2243 | case '\0': |
2244 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2245 | |
2246 | default: | |
46e9880c | 2247 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2248 | } |
46e9880c DJ |
2249 | |
2250 | if (bad) | |
2251 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
2252 | *f); | |
2253 | ||
c906108c | 2254 | f++; |
09d71d23 AS |
2255 | |
2256 | if (lcount > 1 && USE_PRINTF_I64) | |
2257 | { | |
2258 | /* Windows' printf does support long long, but not the usual way. | |
2259 | Convert %lld to %I64d. */ | |
2260 | int length_before_ll = f - last_arg - 1 - lcount; | |
2261 | strncpy (current_substring, last_arg, length_before_ll); | |
2262 | strcpy (current_substring + length_before_ll, "I64"); | |
2263 | current_substring[length_before_ll + 3] = | |
2264 | last_arg[length_before_ll + lcount]; | |
2265 | current_substring += length_before_ll + 4; | |
2266 | } | |
6c7a06a3 TT |
2267 | else if (this_argclass == wide_string_arg |
2268 | || this_argclass == wide_char_arg) | |
2269 | { | |
2270 | /* Convert %ls or %lc to %s. */ | |
2271 | int length_before_ls = f - last_arg - 2; | |
2272 | strncpy (current_substring, last_arg, length_before_ls); | |
2273 | strcpy (current_substring + length_before_ls, "s"); | |
2274 | current_substring += length_before_ls + 2; | |
2275 | } | |
09d71d23 AS |
2276 | else |
2277 | { | |
2278 | strncpy (current_substring, last_arg, f - last_arg); | |
2279 | current_substring += f - last_arg; | |
2280 | } | |
46e9880c DJ |
2281 | *current_substring++ = '\0'; |
2282 | last_arg = f; | |
2283 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2284 | } |
2285 | ||
2286 | /* Now, parse all arguments and evaluate them. | |
2287 | Store the VALUEs in VAL_ARGS. */ | |
2288 | ||
2289 | while (*s != '\0') | |
2290 | { | |
2291 | char *s1; | |
2292 | if (nargs == allocated_args) | |
f976f6d4 AC |
2293 | val_args = (struct value **) xrealloc ((char *) val_args, |
2294 | (allocated_args *= 2) | |
2295 | * sizeof (struct value *)); | |
c906108c SS |
2296 | s1 = s; |
2297 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2298 | |
c906108c SS |
2299 | nargs++; |
2300 | s = s1; | |
2301 | if (*s == ',') | |
2302 | s++; | |
2303 | } | |
c5aa993b | 2304 | |
c906108c | 2305 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2306 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2307 | |
2308 | /* Now actually print them. */ | |
2309 | current_substring = substrings; | |
2310 | for (i = 0; i < nargs; i++) | |
2311 | { | |
2312 | switch (argclass[i]) | |
2313 | { | |
2314 | case string_arg: | |
2315 | { | |
777ea8f1 | 2316 | gdb_byte *str; |
c906108c SS |
2317 | CORE_ADDR tem; |
2318 | int j; | |
1aa20aa8 | 2319 | tem = value_as_address (val_args[i]); |
c906108c SS |
2320 | |
2321 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2322 | for (j = 0;; j++) |
c906108c | 2323 | { |
777ea8f1 | 2324 | gdb_byte c; |
c906108c | 2325 | QUIT; |
d4b2399a | 2326 | read_memory (tem + j, &c, 1); |
c906108c SS |
2327 | if (c == 0) |
2328 | break; | |
2329 | } | |
2330 | ||
2331 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2332 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2333 | if (j != 0) |
2334 | read_memory (tem, str, j); | |
c906108c SS |
2335 | str[j] = 0; |
2336 | ||
777ea8f1 | 2337 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2338 | } |
2339 | break; | |
6c7a06a3 TT |
2340 | case wide_string_arg: |
2341 | { | |
2342 | gdb_byte *str; | |
2343 | CORE_ADDR tem; | |
2344 | int j; | |
50810684 UW |
2345 | struct gdbarch *gdbarch |
2346 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2347 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2348 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2349 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2350 | int wcwidth = TYPE_LENGTH (wctype); |
2351 | gdb_byte *buf = alloca (wcwidth); | |
2352 | struct obstack output; | |
2353 | struct cleanup *inner_cleanup; | |
2354 | ||
2355 | tem = value_as_address (val_args[i]); | |
2356 | ||
2357 | /* This is a %s argument. Find the length of the string. */ | |
2358 | for (j = 0;; j += wcwidth) | |
2359 | { | |
2360 | QUIT; | |
2361 | read_memory (tem + j, buf, wcwidth); | |
e17a4113 | 2362 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) |
6c7a06a3 TT |
2363 | break; |
2364 | } | |
2365 | ||
2366 | /* Copy the string contents into a string inside GDB. */ | |
2367 | str = (gdb_byte *) alloca (j + wcwidth); | |
2368 | if (j != 0) | |
2369 | read_memory (tem, str, j); | |
2370 | memset (&str[j], 0, wcwidth); | |
2371 | ||
2372 | obstack_init (&output); | |
2373 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2374 | ||
e17a4113 | 2375 | convert_between_encodings (target_wide_charset (byte_order), |
6c7a06a3 TT |
2376 | host_charset (), |
2377 | str, j, wcwidth, | |
2378 | &output, translit_char); | |
2379 | obstack_grow_str0 (&output, ""); | |
2380 | ||
2381 | printf_filtered (current_substring, obstack_base (&output)); | |
2382 | do_cleanups (inner_cleanup); | |
2383 | } | |
2384 | break; | |
2385 | case wide_char_arg: | |
2386 | { | |
50810684 UW |
2387 | struct gdbarch *gdbarch |
2388 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2389 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2390 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2391 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2392 | struct type *valtype; |
2393 | struct obstack output; | |
2394 | struct cleanup *inner_cleanup; | |
2395 | const gdb_byte *bytes; | |
2396 | ||
2397 | valtype = value_type (val_args[i]); | |
2398 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2399 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2400 | error (_("expected wchar_t argument for %%lc")); | |
2401 | ||
2402 | bytes = value_contents (val_args[i]); | |
2403 | ||
2404 | obstack_init (&output); | |
2405 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2406 | ||
e17a4113 | 2407 | convert_between_encodings (target_wide_charset (byte_order), |
6c7a06a3 TT |
2408 | host_charset (), |
2409 | bytes, TYPE_LENGTH (valtype), | |
2410 | TYPE_LENGTH (valtype), | |
2411 | &output, translit_char); | |
2412 | obstack_grow_str0 (&output, ""); | |
2413 | ||
2414 | printf_filtered (current_substring, obstack_base (&output)); | |
2415 | do_cleanups (inner_cleanup); | |
2416 | } | |
2417 | break; | |
c906108c SS |
2418 | case double_arg: |
2419 | { | |
b806fb9a UW |
2420 | struct type *type = value_type (val_args[i]); |
2421 | DOUBLEST val; | |
2422 | int inv; | |
2423 | ||
2424 | /* If format string wants a float, unchecked-convert the value | |
2425 | to floating point of the same size. */ | |
50810684 | 2426 | type = float_type_from_length (type); |
b806fb9a UW |
2427 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2428 | if (inv) | |
2429 | error (_("Invalid floating value found in program.")); | |
2430 | ||
2431 | printf_filtered (current_substring, (double) val); | |
c906108c SS |
2432 | break; |
2433 | } | |
46e9880c DJ |
2434 | case long_double_arg: |
2435 | #ifdef HAVE_LONG_DOUBLE | |
2436 | { | |
b806fb9a UW |
2437 | struct type *type = value_type (val_args[i]); |
2438 | DOUBLEST val; | |
2439 | int inv; | |
2440 | ||
2441 | /* If format string wants a float, unchecked-convert the value | |
2442 | to floating point of the same size. */ | |
50810684 | 2443 | type = float_type_from_length (type); |
b806fb9a UW |
2444 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2445 | if (inv) | |
2446 | error (_("Invalid floating value found in program.")); | |
2447 | ||
2448 | printf_filtered (current_substring, (long double) val); | |
46e9880c DJ |
2449 | break; |
2450 | } | |
2451 | #else | |
2452 | error (_("long double not supported in printf")); | |
2453 | #endif | |
c906108c SS |
2454 | case long_long_arg: |
2455 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2456 | { | |
2457 | long long val = value_as_long (val_args[i]); | |
2458 | printf_filtered (current_substring, val); | |
2459 | break; | |
2460 | } | |
2461 | #else | |
8a3fe4f8 | 2462 | error (_("long long not supported in printf")); |
c906108c SS |
2463 | #endif |
2464 | case int_arg: | |
2465 | { | |
46e9880c DJ |
2466 | int val = value_as_long (val_args[i]); |
2467 | printf_filtered (current_substring, val); | |
2468 | break; | |
2469 | } | |
2470 | case long_arg: | |
2471 | { | |
c906108c SS |
2472 | long val = value_as_long (val_args[i]); |
2473 | printf_filtered (current_substring, val); | |
2474 | break; | |
2475 | } | |
1a619819 | 2476 | |
0aea4bf3 LM |
2477 | /* Handles decimal floating values. */ |
2478 | case decfloat_arg: | |
1a619819 | 2479 | { |
0aea4bf3 | 2480 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2481 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2482 | /* If we have native support for Decimal floating |
2483 | printing, handle it here. */ | |
2484 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2485 | #else |
1a619819 LM |
2486 | |
2487 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2488 | we convert the DFP values to string and print them using |
2489 | the %s format specifier. */ | |
2490 | ||
2491 | char *eos, *sos; | |
2492 | int nnull_chars = 0; | |
2493 | ||
2494 | /* Parameter data. */ | |
2495 | struct type *param_type = value_type (val_args[i]); | |
2496 | unsigned int param_len = TYPE_LENGTH (param_type); | |
50810684 | 2497 | struct gdbarch *gdbarch = get_type_arch (param_type); |
e17a4113 | 2498 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0aea4bf3 LM |
2499 | |
2500 | /* DFP output data. */ | |
2501 | struct value *dfp_value = NULL; | |
2502 | gdb_byte *dfp_ptr; | |
2503 | int dfp_len = 16; | |
2504 | gdb_byte dec[16]; | |
2505 | struct type *dfp_type = NULL; | |
2506 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2507 | |
2508 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2509 | and check for DFP length modifiers. */ |
1a619819 LM |
2510 | eos = current_substring + strlen (current_substring); |
2511 | ||
0aea4bf3 LM |
2512 | /* Look for the float/double format specifier. */ |
2513 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2514 | && *eos != 'g' && *eos != 'G') | |
2515 | eos--; | |
2516 | ||
2517 | sos = eos; | |
2518 | ||
2519 | /* Search for the '%' char and extract the size and type of | |
2520 | the output decimal value based on its modifiers | |
2521 | (%Hf, %Df, %DDf). */ | |
2522 | while (*--sos != '%') | |
2523 | { | |
2524 | if (*sos == 'H') | |
2525 | { | |
2526 | dfp_len = 4; | |
50810684 | 2527 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; |
0aea4bf3 LM |
2528 | } |
2529 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2530 | { | |
2531 | dfp_len = 16; | |
50810684 | 2532 | dfp_type = builtin_type (gdbarch)->builtin_declong; |
0aea4bf3 LM |
2533 | sos--; |
2534 | } | |
2535 | else | |
2536 | { | |
2537 | dfp_len = 8; | |
50810684 | 2538 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; |
0aea4bf3 LM |
2539 | } |
2540 | } | |
2541 | ||
2542 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2543 | *++sos = 's'; | |
2544 | ||
2545 | /* Go through the whole format string and pull the correct | |
2546 | number of chars back to compensate for the change in the | |
2547 | format specifier. */ | |
2548 | while (nnull_chars < nargs - i) | |
2549 | { | |
2550 | if (*eos == '\0') | |
2551 | nnull_chars++; | |
2552 | ||
2553 | *++sos = *++eos; | |
2554 | } | |
2555 | ||
2556 | /* Conversion between different DFP types. */ | |
2557 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
e17a4113 UW |
2558 | decimal_convert (param_ptr, param_len, byte_order, |
2559 | dec, dfp_len, byte_order); | |
0aea4bf3 LM |
2560 | else |
2561 | /* If this is a non-trivial conversion, just output 0. | |
2562 | A correct converted value can be displayed by explicitly | |
2563 | casting to a DFP type. */ | |
e17a4113 | 2564 | decimal_from_string (dec, dfp_len, byte_order, "0"); |
0aea4bf3 LM |
2565 | |
2566 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2567 | ||
2568 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2569 | ||
e17a4113 | 2570 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); |
1a619819 LM |
2571 | |
2572 | /* Print the DFP value. */ | |
2573 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2574 | |
1a619819 LM |
2575 | break; |
2576 | #endif | |
2577 | } | |
2578 | ||
2025a643 DJ |
2579 | case ptr_arg: |
2580 | { | |
2581 | /* We avoid the host's %p because pointers are too | |
2582 | likely to be the wrong size. The only interesting | |
2583 | modifier for %p is a width; extract that, and then | |
2584 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2585 | ||
2586 | char *p, *fmt, *fmt_p; | |
2587 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2588 | long long val = value_as_long (val_args[i]); | |
2589 | #else | |
2590 | long val = value_as_long (val_args[i]); | |
2591 | #endif | |
2592 | ||
2593 | fmt = alloca (strlen (current_substring) + 5); | |
2594 | ||
2595 | /* Copy up to the leading %. */ | |
2596 | p = current_substring; | |
2597 | fmt_p = fmt; | |
2598 | while (*p) | |
2599 | { | |
2600 | int is_percent = (*p == '%'); | |
2601 | *fmt_p++ = *p++; | |
2602 | if (is_percent) | |
2603 | { | |
2604 | if (*p == '%') | |
2605 | *fmt_p++ = *p++; | |
2606 | else | |
2607 | break; | |
2608 | } | |
2609 | } | |
2610 | ||
2611 | if (val != 0) | |
2612 | *fmt_p++ = '#'; | |
2613 | ||
2614 | /* Copy any width. */ | |
2615 | while (*p >= '0' && *p < '9') | |
2616 | *fmt_p++ = *p++; | |
2617 | ||
2618 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2619 | if (val != 0) | |
2620 | { | |
2621 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2622 | *fmt_p++ = 'l'; | |
2623 | #endif | |
2624 | *fmt_p++ = 'l'; | |
2625 | *fmt_p++ = 'x'; | |
2626 | *fmt_p++ = '\0'; | |
2627 | printf_filtered (fmt, val); | |
2628 | } | |
2629 | else | |
2630 | { | |
2631 | *fmt_p++ = 's'; | |
2632 | *fmt_p++ = '\0'; | |
2633 | printf_filtered (fmt, "(nil)"); | |
2634 | } | |
2635 | ||
2636 | break; | |
2637 | } | |
675dcf4f MK |
2638 | default: |
2639 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2640 | _("failed internal consistency check")); |
c906108c SS |
2641 | } |
2642 | /* Skip to the next substring. */ | |
2643 | current_substring += strlen (current_substring) + 1; | |
2644 | } | |
2645 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2646 | puts_filtered (last_arg); |
c906108c SS |
2647 | } |
2648 | do_cleanups (old_cleanups); | |
2649 | } | |
c906108c | 2650 | |
c906108c | 2651 | void |
fba45db2 | 2652 | _initialize_printcmd (void) |
c906108c | 2653 | { |
c94fdfd0 EZ |
2654 | struct cmd_list_element *c; |
2655 | ||
c906108c SS |
2656 | current_display_number = -1; |
2657 | ||
a3247a22 PP |
2658 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2659 | ||
c906108c | 2660 | add_info ("address", address_info, |
1bedd215 | 2661 | _("Describe where symbol SYM is stored.")); |
c906108c | 2662 | |
1bedd215 AC |
2663 | add_info ("symbol", sym_info, _("\ |
2664 | Describe what symbol is at location ADDR.\n\ | |
2665 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2666 | |
1bedd215 AC |
2667 | add_com ("x", class_vars, x_command, _("\ |
2668 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2669 | ADDRESS is an expression for the memory address to examine.\n\ |
2670 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2671 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2672 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2673 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2674 | The specified number of objects of the specified size are printed\n\ |
2675 | according to the format.\n\n\ | |
2676 | Defaults for format and size letters are those previously used.\n\ | |
2677 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2678 | with this command or \"print\".")); |
c906108c | 2679 | |
c906108c SS |
2680 | #if 0 |
2681 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2682 | _("Print line number and file of definition of variable.")); |
c906108c | 2683 | #endif |
c5aa993b | 2684 | |
1bedd215 AC |
2685 | add_info ("display", display_info, _("\ |
2686 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2687 | |
1a966eab AC |
2688 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2689 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2690 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2691 | No argument means cancel all automatic-display expressions.\n\ | |
2692 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2693 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2694 | &cmdlist); |
c906108c | 2695 | |
1bedd215 AC |
2696 | add_com ("display", class_vars, display_command, _("\ |
2697 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2698 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2699 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2700 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2701 | and examining is done as in the \"x\" command.\n\n\ | |
2702 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2703 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2704 | |
1a966eab AC |
2705 | add_cmd ("display", class_vars, enable_display, _("\ |
2706 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2707 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2708 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2709 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2710 | |
1a966eab AC |
2711 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2712 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2713 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2714 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2715 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2716 | |
1a966eab AC |
2717 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2718 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2719 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2720 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2721 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2722 | |
1bedd215 AC |
2723 | add_com ("printf", class_vars, printf_command, _("\ |
2724 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2725 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2726 | |
1bedd215 AC |
2727 | add_com ("output", class_vars, output_command, _("\ |
2728 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2729 | This is useful in user-defined commands.")); | |
c906108c | 2730 | |
1bedd215 AC |
2731 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2732 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2733 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2734 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2735 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2736 | variable in the program being debugged. EXP is any valid expression.\n\ |
2737 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2738 | \n\ | |
2739 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2740 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2741 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2742 | if (dbx_commands) |
1bedd215 AC |
2743 | add_com ("assign", class_vars, set_command, _("\ |
2744 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2745 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2746 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2747 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2748 | variable in the program being debugged. EXP is any valid expression.\n\ |
2749 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2750 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2751 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2752 | |
2753 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2754 | c = add_com ("call", class_vars, call_command, _("\ |
2755 | Call a function in the program.\n\ | |
c906108c SS |
2756 | The argument is the function name and arguments, in the notation of the\n\ |
2757 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2758 | history, if it is not void.")); |
65d12d83 | 2759 | set_cmd_completer (c, expression_completer); |
c906108c | 2760 | |
1a966eab AC |
2761 | add_cmd ("variable", class_vars, set_command, _("\ |
2762 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2763 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2764 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2765 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2766 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2767 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2768 | &setlist); |
c906108c | 2769 | |
1bedd215 AC |
2770 | c = add_com ("print", class_vars, print_command, _("\ |
2771 | Print value of expression EXP.\n\ | |
c906108c SS |
2772 | Variables accessible are those of the lexical environment of the selected\n\ |
2773 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2774 | \n\ | |
2775 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2776 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2777 | Names starting with $ refer to registers (with the values they would have\n\ |
2778 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2779 | all registers saved by frames farther in) or else to debugger\n\ |
2780 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2781 | Use assignment expressions to give values to convenience variables.\n\ |
2782 | \n\ | |
c906108c SS |
2783 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2784 | @ is a binary operator for treating consecutive data objects\n\ | |
2785 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2786 | element is FOO, whose second element is stored in the space following\n\ | |
2787 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2788 | resides in memory.\n\ |
2789 | \n\ | |
c906108c | 2790 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2791 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2792 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2793 | add_com_alias ("p", "print", class_vars, 1); |
2794 | ||
1bedd215 AC |
2795 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2796 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2797 | environment, the value is printed in its own window.")); | |
65d12d83 | 2798 | set_cmd_completer (c, expression_completer); |
c906108c | 2799 | |
35096d9d AC |
2800 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2801 | &max_symbolic_offset, _("\ | |
2802 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2803 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2804 | NULL, | |
920d2a44 | 2805 | show_max_symbolic_offset, |
35096d9d | 2806 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2807 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2808 | &print_symbol_filename, _("\ | |
2809 | Set printing of source filename and line number with <symbol>."), _("\ | |
2810 | Show printing of source filename and line number with <symbol>."), NULL, | |
2811 | NULL, | |
920d2a44 | 2812 | show_print_symbol_filename, |
5bf193a2 | 2813 | &setprintlist, &showprintlist); |
c906108c | 2814 | } |