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; | |
9a22f0d0 PM |
263 | case 's': |
264 | /* Display strings with byte size chars unless explicitly specified. */ | |
265 | val.size = '\0'; | |
266 | break; | |
267 | ||
c906108c SS |
268 | default: |
269 | /* The default is the size most recently specified. */ | |
270 | val.size = osize; | |
271 | } | |
272 | ||
273 | return val; | |
274 | } | |
275 | \f | |
79a45b7d | 276 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 277 | Do not end with a newline. |
c906108c | 278 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
279 | This is used to pad hex numbers so they line up. SIZE is 0 |
280 | for print / output and set for examine. */ | |
c906108c SS |
281 | |
282 | static void | |
79a45b7d TT |
283 | print_formatted (struct value *val, int size, |
284 | const struct value_print_options *options, | |
fba45db2 | 285 | struct ui_file *stream) |
c906108c | 286 | { |
df407dfe | 287 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
288 | int len = TYPE_LENGTH (type); |
289 | ||
290 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 291 | next_address = value_address (val) + len; |
c906108c | 292 | |
ea37ba09 | 293 | if (size) |
c906108c | 294 | { |
79a45b7d | 295 | switch (options->format) |
ea37ba09 DJ |
296 | { |
297 | case 's': | |
6c7a06a3 TT |
298 | { |
299 | struct type *elttype = value_type (val); | |
42ae5230 | 300 | next_address = (value_address (val) |
6c7a06a3 | 301 | + val_print_string (elttype, |
42ae5230 | 302 | value_address (val), -1, |
9a22f0d0 | 303 | stream, options) * len); |
6c7a06a3 | 304 | } |
ea37ba09 | 305 | return; |
c906108c | 306 | |
ea37ba09 DJ |
307 | case 'i': |
308 | /* We often wrap here if there are long symbolic names. */ | |
309 | wrap_here (" "); | |
42ae5230 | 310 | next_address = (value_address (val) |
13274fc3 UW |
311 | + gdb_print_insn (get_type_arch (type), |
312 | value_address (val), stream, | |
ea37ba09 DJ |
313 | &branch_delay_insns)); |
314 | return; | |
315 | } | |
c906108c | 316 | } |
ea37ba09 | 317 | |
79a45b7d | 318 | if (options->format == 0 || options->format == 's' |
4e885b20 | 319 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
320 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
321 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
322 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
323 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
324 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 325 | value_print (val, stream, options); |
ea37ba09 DJ |
326 | else |
327 | /* User specified format, so don't look to the the type to | |
328 | tell us what to do. */ | |
329 | print_scalar_formatted (value_contents (val), type, | |
79a45b7d | 330 | options, size, stream); |
c906108c SS |
331 | } |
332 | ||
b806fb9a UW |
333 | /* Return builtin floating point type of same length as TYPE. |
334 | If no such type is found, return TYPE itself. */ | |
335 | static struct type * | |
50810684 | 336 | float_type_from_length (struct type *type) |
b806fb9a | 337 | { |
50810684 | 338 | struct gdbarch *gdbarch = get_type_arch (type); |
b806fb9a UW |
339 | const struct builtin_type *builtin = builtin_type (gdbarch); |
340 | unsigned int len = TYPE_LENGTH (type); | |
341 | ||
342 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
343 | type = builtin->builtin_float; | |
344 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
345 | type = builtin->builtin_double; | |
346 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
347 | type = builtin->builtin_long_double; | |
348 | ||
349 | return type; | |
350 | } | |
351 | ||
c906108c | 352 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
79a45b7d TT |
353 | according to OPTIONS and SIZE on STREAM. |
354 | Formats s and i are not supported at this level. | |
c906108c SS |
355 | |
356 | This is how the elements of an array or structure are printed | |
357 | with a format. */ | |
358 | ||
359 | void | |
366b1cbf | 360 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
361 | const struct value_print_options *options, |
362 | int size, struct ui_file *stream) | |
c906108c | 363 | { |
50810684 | 364 | struct gdbarch *gdbarch = get_type_arch (type); |
81cb7cc9 | 365 | LONGEST val_long = 0; |
c906108c | 366 | unsigned int len = TYPE_LENGTH (type); |
69feb676 | 367 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 368 | |
ea37ba09 DJ |
369 | /* If we get here with a string format, try again without it. Go |
370 | all the way back to the language printers, which may call us | |
371 | again. */ | |
79a45b7d | 372 | if (options->format == 's') |
ea37ba09 | 373 | { |
79a45b7d TT |
374 | struct value_print_options opts = *options; |
375 | opts.format = 0; | |
376 | opts.deref_ref = 0; | |
377 | val_print (type, valaddr, 0, 0, stream, 0, &opts, | |
d8ca156b | 378 | current_language); |
ea37ba09 DJ |
379 | return; |
380 | } | |
381 | ||
6b9acc27 JJ |
382 | if (len > sizeof(LONGEST) && |
383 | (TYPE_CODE (type) == TYPE_CODE_INT | |
384 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
385 | { | |
79a45b7d | 386 | switch (options->format) |
6b9acc27 JJ |
387 | { |
388 | case 'o': | |
d44e8473 | 389 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
390 | return; |
391 | case 'u': | |
392 | case 'd': | |
d44e8473 | 393 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
394 | return; |
395 | case 't': | |
d44e8473 | 396 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
397 | return; |
398 | case 'x': | |
d44e8473 | 399 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
400 | return; |
401 | case 'c': | |
6c7a06a3 | 402 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
403 | return; |
404 | default: | |
405 | break; | |
406 | }; | |
407 | } | |
408 | ||
79a45b7d | 409 | if (options->format != 'f') |
c906108c SS |
410 | val_long = unpack_long (type, valaddr); |
411 | ||
ef166cf4 | 412 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 413 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 414 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 415 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
69feb676 | 416 | len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 417 | |
c906108c SS |
418 | /* If we are printing it as unsigned, truncate it in case it is actually |
419 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
420 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 421 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
422 | { |
423 | if (len < sizeof (LONGEST)) | |
424 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
425 | } | |
426 | ||
79a45b7d | 427 | switch (options->format) |
c906108c SS |
428 | { |
429 | case 'x': | |
430 | if (!size) | |
431 | { | |
675dcf4f | 432 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
433 | print_longest (stream, 'x', 1, val_long); |
434 | } | |
435 | else | |
436 | switch (size) | |
437 | { | |
438 | case 'b': | |
439 | case 'h': | |
440 | case 'w': | |
441 | case 'g': | |
442 | print_longest (stream, size, 1, val_long); | |
443 | break; | |
444 | default: | |
8a3fe4f8 | 445 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
446 | } |
447 | break; | |
448 | ||
449 | case 'd': | |
450 | print_longest (stream, 'd', 1, val_long); | |
451 | break; | |
452 | ||
453 | case 'u': | |
454 | print_longest (stream, 'u', 0, val_long); | |
455 | break; | |
456 | ||
457 | case 'o': | |
458 | if (val_long) | |
459 | print_longest (stream, 'o', 1, val_long); | |
460 | else | |
461 | fprintf_filtered (stream, "0"); | |
462 | break; | |
463 | ||
464 | case 'a': | |
593de6a6 | 465 | { |
593de6a6 | 466 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
5af949e3 | 467 | print_address (gdbarch, addr, stream); |
593de6a6 | 468 | } |
c906108c SS |
469 | break; |
470 | ||
471 | case 'c': | |
79a45b7d TT |
472 | { |
473 | struct value_print_options opts = *options; | |
474 | opts.format = 0; | |
69feb676 | 475 | |
79a45b7d | 476 | if (TYPE_UNSIGNED (type)) |
69feb676 UW |
477 | type = builtin_type (gdbarch)->builtin_true_unsigned_char; |
478 | else | |
479 | type = builtin_type (gdbarch)->builtin_true_char; | |
480 | ||
481 | value_print (value_from_longest (type, val_long), stream, &opts); | |
79a45b7d | 482 | } |
c906108c SS |
483 | break; |
484 | ||
485 | case 'f': | |
50810684 | 486 | type = float_type_from_length (type); |
c906108c SS |
487 | print_floating (valaddr, type, stream); |
488 | break; | |
489 | ||
490 | case 0: | |
675dcf4f MK |
491 | internal_error (__FILE__, __LINE__, |
492 | _("failed internal consistency check")); | |
c906108c SS |
493 | |
494 | case 't': | |
495 | /* Binary; 't' stands for "two". */ | |
496 | { | |
c5aa993b JM |
497 | char bits[8 * (sizeof val_long) + 1]; |
498 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
499 | char *cp = bits; |
500 | int width; | |
501 | ||
c5aa993b JM |
502 | if (!size) |
503 | width = 8 * (sizeof val_long); | |
504 | else | |
505 | switch (size) | |
c906108c SS |
506 | { |
507 | case 'b': | |
508 | width = 8; | |
509 | break; | |
510 | case 'h': | |
511 | width = 16; | |
512 | break; | |
513 | case 'w': | |
514 | width = 32; | |
515 | break; | |
516 | case 'g': | |
517 | width = 64; | |
518 | break; | |
519 | default: | |
8a3fe4f8 | 520 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
521 | } |
522 | ||
c5aa993b JM |
523 | bits[width] = '\0'; |
524 | while (width-- > 0) | |
525 | { | |
526 | bits[width] = (val_long & 1) ? '1' : '0'; | |
527 | val_long >>= 1; | |
528 | } | |
c906108c SS |
529 | if (!size) |
530 | { | |
531 | while (*cp && *cp == '0') | |
532 | cp++; | |
533 | if (*cp == '\0') | |
534 | cp--; | |
535 | } | |
bb599908 | 536 | strcpy (buf, cp); |
306d9ac5 | 537 | fputs_filtered (buf, stream); |
c906108c SS |
538 | } |
539 | break; | |
540 | ||
541 | default: | |
79a45b7d | 542 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
543 | } |
544 | } | |
545 | ||
546 | /* Specify default address for `x' command. | |
675dcf4f | 547 | The `info lines' command uses this. */ |
c906108c SS |
548 | |
549 | void | |
8b9b9e1a | 550 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 551 | { |
8b9b9e1a UW |
552 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
553 | ||
5d3729b5 | 554 | next_gdbarch = gdbarch; |
c906108c SS |
555 | next_address = addr; |
556 | ||
557 | /* Make address available to the user as $_. */ | |
558 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 559 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
560 | } |
561 | ||
562 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
563 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
564 | Optionally also print source file and line number, if available. | |
565 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
566 | or to interpret it as a possible C++ name and convert it back to source | |
567 | form. However note that DO_DEMANGLE can be overridden by the specific | |
568 | settings of the demangle and asm_demangle variables. */ | |
569 | ||
570 | void | |
22e722e1 DJ |
571 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
572 | struct ui_file *stream, | |
675dcf4f | 573 | int do_demangle, char *leadin) |
dfcd3bfb JM |
574 | { |
575 | char *name = NULL; | |
576 | char *filename = NULL; | |
577 | int unmapped = 0; | |
578 | int offset = 0; | |
579 | int line = 0; | |
580 | ||
675dcf4f | 581 | /* Throw away both name and filename. */ |
2f9429ae AC |
582 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
583 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 584 | |
22e722e1 | 585 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 586 | &filename, &line, &unmapped)) |
2f9429ae AC |
587 | { |
588 | do_cleanups (cleanup_chain); | |
589 | return; | |
590 | } | |
dfcd3bfb JM |
591 | |
592 | fputs_filtered (leadin, stream); | |
593 | if (unmapped) | |
594 | fputs_filtered ("<*", stream); | |
595 | else | |
596 | fputs_filtered ("<", stream); | |
597 | fputs_filtered (name, stream); | |
598 | if (offset != 0) | |
599 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
600 | ||
601 | /* Append source filename and line number if desired. Give specific | |
602 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
603 | if (print_symbol_filename && filename != NULL) | |
604 | { | |
605 | if (line != -1) | |
606 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
607 | else | |
608 | fprintf_filtered (stream, " in %s", filename); | |
609 | } | |
610 | if (unmapped) | |
611 | fputs_filtered ("*>", stream); | |
612 | else | |
613 | fputs_filtered (">", stream); | |
614 | ||
615 | do_cleanups (cleanup_chain); | |
616 | } | |
617 | ||
618 | /* Given an address ADDR return all the elements needed to print the | |
619 | address in a symbolic form. NAME can be mangled or not depending | |
620 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
621 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
622 | success, when all the info in the OUT paramters is valid. Return 1 | |
623 | otherwise. */ | |
624 | int | |
22e722e1 DJ |
625 | build_address_symbolic (struct gdbarch *gdbarch, |
626 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
627 | int do_demangle, /* IN */ |
628 | char **name, /* OUT */ | |
629 | int *offset, /* OUT */ | |
630 | char **filename, /* OUT */ | |
631 | int *line, /* OUT */ | |
632 | int *unmapped) /* OUT */ | |
c906108c SS |
633 | { |
634 | struct minimal_symbol *msymbol; | |
635 | struct symbol *symbol; | |
c906108c | 636 | CORE_ADDR name_location = 0; |
714835d5 | 637 | struct obj_section *section = NULL; |
dfcd3bfb JM |
638 | char *name_temp = ""; |
639 | ||
89c83b10 | 640 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 641 | *unmapped = 0; |
c906108c | 642 | |
dfcd3bfb | 643 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 644 | mapped. */ |
c906108c SS |
645 | if (overlay_debugging) |
646 | { | |
647 | section = find_pc_overlay (addr); | |
648 | if (pc_in_unmapped_range (addr, section)) | |
649 | { | |
dfcd3bfb | 650 | *unmapped = 1; |
c906108c SS |
651 | addr = overlay_mapped_address (addr, section); |
652 | } | |
653 | } | |
654 | ||
c906108c SS |
655 | /* First try to find the address in the symbol table, then |
656 | in the minsyms. Take the closest one. */ | |
657 | ||
658 | /* This is defective in the sense that it only finds text symbols. So | |
659 | really this is kind of pointless--we should make sure that the | |
660 | minimal symbols have everything we need (by changing that we could | |
661 | save some memory, but for many debug format--ELF/DWARF or | |
662 | anything/stabs--it would be inconvenient to eliminate those minimal | |
663 | symbols anyway). */ | |
664 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
665 | symbol = find_pc_sect_function (addr, section); | |
666 | ||
667 | if (symbol) | |
668 | { | |
22e722e1 DJ |
669 | /* If this is a function (i.e. a code address), strip out any |
670 | non-address bits. For instance, display a pointer to the | |
671 | first instruction of a Thumb function as <function>; the | |
672 | second instruction will be <function+2>, even though the | |
673 | pointer is <function+3>. This matches the ISA behavior. */ | |
674 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
675 | ||
c906108c | 676 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 677 | if (do_demangle || asm_demangle) |
de5ad195 | 678 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 679 | else |
3567439c | 680 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
681 | } |
682 | ||
683 | if (msymbol != NULL) | |
684 | { | |
685 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
686 | { | |
687 | /* The msymbol is closer to the address than the symbol; | |
688 | use the msymbol instead. */ | |
689 | symbol = 0; | |
c906108c | 690 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 691 | if (do_demangle || asm_demangle) |
de5ad195 | 692 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 693 | else |
3567439c | 694 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
695 | } |
696 | } | |
697 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 698 | return 1; |
c906108c | 699 | |
c906108c SS |
700 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
701 | ||
702 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
703 | CORE_ADDR. But when we detect unsigned wraparound in the | |
704 | CORE_ADDR math, we ignore this test and print the offset, | |
705 | because addr+max_symbolic_offset has wrapped through the end | |
706 | of the address space back to the beginning, giving bogus comparison. */ | |
707 | if (addr > name_location + max_symbolic_offset | |
708 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 709 | return 1; |
c906108c | 710 | |
dfcd3bfb JM |
711 | *offset = addr - name_location; |
712 | ||
713 | *name = xstrdup (name_temp); | |
c906108c | 714 | |
c906108c SS |
715 | if (print_symbol_filename) |
716 | { | |
717 | struct symtab_and_line sal; | |
718 | ||
719 | sal = find_pc_sect_line (addr, section, 0); | |
720 | ||
721 | if (sal.symtab) | |
dfcd3bfb JM |
722 | { |
723 | *filename = xstrdup (sal.symtab->filename); | |
724 | *line = sal.line; | |
725 | } | |
c906108c | 726 | } |
dfcd3bfb | 727 | return 0; |
c906108c SS |
728 | } |
729 | ||
c906108c SS |
730 | |
731 | /* Print address ADDR symbolically on STREAM. | |
732 | First print it as a number. Then perhaps print | |
733 | <SYMBOL + OFFSET> after the number. */ | |
734 | ||
735 | void | |
5af949e3 UW |
736 | print_address (struct gdbarch *gdbarch, |
737 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 738 | { |
5af949e3 | 739 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 740 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
741 | } |
742 | ||
2b28d209 PP |
743 | /* Return a prefix for instruction address: |
744 | "=> " for current instruction, else " ". */ | |
745 | ||
746 | const char * | |
747 | pc_prefix (CORE_ADDR addr) | |
748 | { | |
749 | if (has_stack_frames ()) | |
750 | { | |
751 | struct frame_info *frame; | |
752 | CORE_ADDR pc; | |
753 | ||
754 | frame = get_selected_frame (NULL); | |
755 | pc = get_frame_pc (frame); | |
756 | ||
757 | if (pc == addr) | |
758 | return "=> "; | |
759 | } | |
760 | return " "; | |
761 | } | |
762 | ||
c906108c SS |
763 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
764 | controls whether to print the symbolic name "raw" or demangled. | |
765 | Global setting "addressprint" controls whether to print hex address | |
766 | or not. */ | |
767 | ||
768 | void | |
5af949e3 UW |
769 | print_address_demangle (struct gdbarch *gdbarch, CORE_ADDR addr, |
770 | struct ui_file *stream, int do_demangle) | |
c906108c | 771 | { |
79a45b7d TT |
772 | struct value_print_options opts; |
773 | get_user_print_options (&opts); | |
c906108c SS |
774 | if (addr == 0) |
775 | { | |
776 | fprintf_filtered (stream, "0"); | |
777 | } | |
79a45b7d | 778 | else if (opts.addressprint) |
c906108c | 779 | { |
5af949e3 | 780 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 781 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
782 | } |
783 | else | |
784 | { | |
22e722e1 | 785 | print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c SS |
786 | } |
787 | } | |
788 | \f | |
789 | ||
c906108c SS |
790 | /* Examine data at address ADDR in format FMT. |
791 | Fetch it from memory and print on gdb_stdout. */ | |
792 | ||
793 | static void | |
5d3729b5 | 794 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 795 | { |
52f0bd74 AC |
796 | char format = 0; |
797 | char size; | |
798 | int count = 1; | |
c906108c | 799 | struct type *val_type = NULL; |
52f0bd74 AC |
800 | int i; |
801 | int maxelts; | |
79a45b7d | 802 | struct value_print_options opts; |
c906108c SS |
803 | |
804 | format = fmt.format; | |
805 | size = fmt.size; | |
806 | count = fmt.count; | |
5d3729b5 | 807 | next_gdbarch = gdbarch; |
c906108c | 808 | next_address = addr; |
c906108c | 809 | |
9a22f0d0 PM |
810 | /* Instruction format implies fetch single bytes |
811 | regardless of the specified size. | |
812 | The case of strings is handled in decode_format, only explicit | |
813 | size operator are not changed to 'b'. */ | |
814 | if (format == 'i') | |
c906108c SS |
815 | size = 'b'; |
816 | ||
5d3729b5 UW |
817 | if (size == 'a') |
818 | { | |
819 | /* Pick the appropriate size for an address. */ | |
820 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
821 | size = 'g'; | |
822 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
823 | size = 'w'; | |
824 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
825 | size = 'h'; | |
826 | else | |
827 | /* Bad value for gdbarch_ptr_bit. */ | |
828 | internal_error (__FILE__, __LINE__, | |
829 | _("failed internal consistency check")); | |
830 | } | |
831 | ||
832 | if (size == 'b') | |
df4df182 | 833 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 834 | else if (size == 'h') |
df4df182 | 835 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 836 | else if (size == 'w') |
df4df182 | 837 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 838 | else if (size == 'g') |
df4df182 | 839 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c | 840 | |
9a22f0d0 PM |
841 | if (format == 's') |
842 | { | |
843 | struct type *char_type = NULL; | |
844 | /* Search for "char16_t" or "char32_t" types or fall back to 8-bit char | |
845 | if type is not found. */ | |
846 | if (size == 'h') | |
847 | char_type = builtin_type (next_gdbarch)->builtin_char16; | |
848 | else if (size == 'w') | |
849 | char_type = builtin_type (next_gdbarch)->builtin_char32; | |
850 | if (char_type) | |
851 | val_type = char_type; | |
852 | else | |
853 | { | |
854 | if (size != '\0' && size != 'b') | |
855 | warning (_("Unable to display strings with size '%c', using 'b' \ | |
856 | instead."), size); | |
857 | size = 'b'; | |
858 | val_type = builtin_type (next_gdbarch)->builtin_int8; | |
859 | } | |
860 | } | |
861 | ||
c906108c SS |
862 | maxelts = 8; |
863 | if (size == 'w') | |
864 | maxelts = 4; | |
865 | if (size == 'g') | |
866 | maxelts = 2; | |
867 | if (format == 's' || format == 'i') | |
868 | maxelts = 1; | |
869 | ||
79a45b7d TT |
870 | get_formatted_print_options (&opts, format); |
871 | ||
c906108c SS |
872 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
873 | with the address of the next one at the start of each line. */ | |
874 | ||
875 | while (count > 0) | |
876 | { | |
877 | QUIT; | |
2b28d209 PP |
878 | if (format == 'i') |
879 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 880 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
881 | printf_filtered (":"); |
882 | for (i = maxelts; | |
883 | i > 0 && count > 0; | |
884 | i--, count--) | |
885 | { | |
886 | printf_filtered ("\t"); | |
887 | /* Note that print_formatted sets next_address for the next | |
888 | object. */ | |
889 | last_examine_address = next_address; | |
890 | ||
891 | if (last_examine_value) | |
892 | value_free (last_examine_value); | |
893 | ||
894 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
895 | Instead, to avoid the possibility of a fetched value not |
896 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
897 | uses it. When examining an instruction stream, the |
898 | disassembler will perform its own memory fetch using just | |
899 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
900 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
901 | is left with the byte sequence from the last complete | |
902 | instruction fetched from memory? */ | |
00a4c844 | 903 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
904 | |
905 | if (last_examine_value) | |
906 | release_value (last_examine_value); | |
907 | ||
79a45b7d | 908 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
909 | |
910 | /* Display any branch delay slots following the final insn. */ | |
911 | if (format == 'i' && count == 1) | |
912 | count += branch_delay_insns; | |
c906108c SS |
913 | } |
914 | printf_filtered ("\n"); | |
915 | gdb_flush (gdb_stdout); | |
916 | } | |
917 | } | |
918 | \f | |
919 | static void | |
fba45db2 | 920 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
921 | { |
922 | if (fmt.size != 0) | |
8a3fe4f8 | 923 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 924 | if (fmt.count != 1) |
8a3fe4f8 | 925 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 926 | cmdname); |
ea37ba09 | 927 | if (fmt.format == 'i') |
8a3fe4f8 | 928 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
929 | fmt.format, cmdname); |
930 | } | |
931 | ||
675dcf4f | 932 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 933 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 934 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
935 | |
936 | static void | |
fba45db2 | 937 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
938 | { |
939 | struct expression *expr; | |
52f0bd74 AC |
940 | struct cleanup *old_chain = 0; |
941 | char format = 0; | |
3d6d86c6 | 942 | struct value *val; |
c906108c SS |
943 | struct format_data fmt; |
944 | int cleanup = 0; | |
945 | ||
c906108c SS |
946 | if (exp && *exp == '/') |
947 | { | |
948 | exp++; | |
949 | fmt = decode_format (&exp, last_format, 0); | |
950 | validate_format (fmt, "print"); | |
951 | last_format = format = fmt.format; | |
952 | } | |
953 | else | |
954 | { | |
955 | fmt.count = 1; | |
956 | fmt.format = 0; | |
957 | fmt.size = 0; | |
a6bac58e | 958 | fmt.raw = 0; |
c906108c SS |
959 | } |
960 | ||
961 | if (exp && *exp) | |
962 | { | |
c906108c SS |
963 | struct type *type; |
964 | expr = parse_expression (exp); | |
c13c43fd | 965 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
966 | cleanup = 1; |
967 | val = evaluate_expression (expr); | |
c906108c SS |
968 | } |
969 | else | |
970 | val = access_value_history (0); | |
971 | ||
df407dfe AC |
972 | if (voidprint || (val && value_type (val) && |
973 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 974 | { |
79a45b7d | 975 | struct value_print_options opts; |
c906108c SS |
976 | int histindex = record_latest_value (val); |
977 | ||
978 | if (histindex >= 0) | |
df407dfe | 979 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 980 | else |
df407dfe | 981 | annotate_value_begin (value_type (val)); |
c906108c SS |
982 | |
983 | if (inspect) | |
675dcf4f MK |
984 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
985 | exp, histindex); | |
c5aa993b JM |
986 | else if (histindex >= 0) |
987 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
988 | |
989 | if (histindex >= 0) | |
990 | annotate_value_history_value (); | |
991 | ||
79a45b7d TT |
992 | get_formatted_print_options (&opts, format); |
993 | opts.inspect_it = inspect; | |
a6bac58e | 994 | opts.raw = fmt.raw; |
79a45b7d TT |
995 | |
996 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
997 | printf_filtered ("\n"); |
998 | ||
999 | if (histindex >= 0) | |
1000 | annotate_value_history_end (); | |
1001 | else | |
1002 | annotate_value_end (); | |
1003 | ||
1004 | if (inspect) | |
c5aa993b | 1005 | printf_unfiltered ("\") )\030"); |
c906108c SS |
1006 | } |
1007 | ||
1008 | if (cleanup) | |
1009 | do_cleanups (old_chain); | |
c906108c SS |
1010 | } |
1011 | ||
c906108c | 1012 | static void |
fba45db2 | 1013 | print_command (char *exp, int from_tty) |
c906108c SS |
1014 | { |
1015 | print_command_1 (exp, 0, 1); | |
1016 | } | |
1017 | ||
675dcf4f | 1018 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 1019 | static void |
fba45db2 | 1020 | inspect_command (char *exp, int from_tty) |
c906108c SS |
1021 | { |
1022 | extern int epoch_interface; | |
1023 | ||
1024 | print_command_1 (exp, epoch_interface, 1); | |
1025 | } | |
1026 | ||
675dcf4f | 1027 | /* Same as print, except it doesn't print void results. */ |
c906108c | 1028 | static void |
fba45db2 | 1029 | call_command (char *exp, int from_tty) |
c906108c SS |
1030 | { |
1031 | print_command_1 (exp, 0, 0); | |
1032 | } | |
1033 | ||
c906108c | 1034 | void |
fba45db2 | 1035 | output_command (char *exp, int from_tty) |
c906108c SS |
1036 | { |
1037 | struct expression *expr; | |
52f0bd74 AC |
1038 | struct cleanup *old_chain; |
1039 | char format = 0; | |
3d6d86c6 | 1040 | struct value *val; |
c906108c | 1041 | struct format_data fmt; |
79a45b7d | 1042 | struct value_print_options opts; |
c906108c | 1043 | |
777ea8f1 | 1044 | fmt.size = 0; |
a6bac58e | 1045 | fmt.raw = 0; |
777ea8f1 | 1046 | |
c906108c SS |
1047 | if (exp && *exp == '/') |
1048 | { | |
1049 | exp++; | |
1050 | fmt = decode_format (&exp, 0, 0); | |
1051 | validate_format (fmt, "output"); | |
1052 | format = fmt.format; | |
1053 | } | |
1054 | ||
1055 | expr = parse_expression (exp); | |
c13c43fd | 1056 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1057 | |
1058 | val = evaluate_expression (expr); | |
1059 | ||
df407dfe | 1060 | annotate_value_begin (value_type (val)); |
c906108c | 1061 | |
79a45b7d | 1062 | get_formatted_print_options (&opts, format); |
a6bac58e | 1063 | opts.raw = fmt.raw; |
79a45b7d | 1064 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1065 | |
1066 | annotate_value_end (); | |
1067 | ||
2acceee2 JM |
1068 | wrap_here (""); |
1069 | gdb_flush (gdb_stdout); | |
1070 | ||
c906108c SS |
1071 | do_cleanups (old_chain); |
1072 | } | |
1073 | ||
c906108c | 1074 | static void |
fba45db2 | 1075 | set_command (char *exp, int from_tty) |
c906108c SS |
1076 | { |
1077 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1078 | struct cleanup *old_chain = |
c13c43fd | 1079 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
1080 | evaluate_expression (expr); |
1081 | do_cleanups (old_chain); | |
1082 | } | |
1083 | ||
c906108c | 1084 | static void |
fba45db2 | 1085 | sym_info (char *arg, int from_tty) |
c906108c SS |
1086 | { |
1087 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1088 | struct objfile *objfile; |
1089 | struct obj_section *osect; | |
c5aa993b JM |
1090 | CORE_ADDR addr, sect_addr; |
1091 | int matches = 0; | |
1092 | unsigned int offset; | |
c906108c SS |
1093 | |
1094 | if (!arg) | |
e2e0b3e5 | 1095 | error_no_arg (_("address")); |
c906108c SS |
1096 | |
1097 | addr = parse_and_eval_address (arg); | |
1098 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1099 | { |
94277a38 DJ |
1100 | /* Only process each object file once, even if there's a separate |
1101 | debug file. */ | |
1102 | if (objfile->separate_debug_objfile_backlink) | |
1103 | continue; | |
1104 | ||
714835d5 | 1105 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1106 | |
f1f6aadf PA |
1107 | if (obj_section_addr (osect) <= sect_addr |
1108 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1109 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1110 | { |
c14c28ba | 1111 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1112 | char *loc_string; |
1113 | struct cleanup *old_chain; | |
c14c28ba | 1114 | |
c5aa993b JM |
1115 | matches = 1; |
1116 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1117 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1118 | sec_name = osect->the_bfd_section->name; | |
1119 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1120 | ||
e2fd701e DE |
1121 | /* Don't print the offset if it is zero. |
1122 | We assume there's no need to handle i18n of "sym + offset". */ | |
1123 | if (offset) | |
549ba0f8 | 1124 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1125 | else |
549ba0f8 | 1126 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1127 | |
1128 | /* Use a cleanup to free loc_string in case the user quits | |
1129 | a pagination request inside printf_filtered. */ | |
1130 | old_chain = make_cleanup (xfree, loc_string); | |
1131 | ||
c14c28ba PP |
1132 | gdb_assert (osect->objfile && osect->objfile->name); |
1133 | obj_name = osect->objfile->name; | |
1134 | ||
1135 | if (MULTI_OBJFILE_P ()) | |
1136 | if (pc_in_unmapped_range (addr, osect)) | |
1137 | if (section_is_overlay (osect)) | |
e2fd701e | 1138 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1139 | "%s overlay section %s of %s\n"), |
e2fd701e | 1140 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1141 | else |
e2fd701e | 1142 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1143 | "section %s of %s\n"), |
e2fd701e | 1144 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1145 | else |
1146 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1147 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1148 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1149 | else |
e2fd701e DE |
1150 | printf_filtered (_("%s in section %s of %s\n"), |
1151 | loc_string, sec_name, obj_name); | |
c5aa993b | 1152 | else |
c14c28ba PP |
1153 | if (pc_in_unmapped_range (addr, osect)) |
1154 | if (section_is_overlay (osect)) | |
e2fd701e | 1155 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1156 | "section %s\n"), |
e2fd701e | 1157 | loc_string, mapped, sec_name); |
c14c28ba | 1158 | else |
e2fd701e DE |
1159 | printf_filtered (_("%s in load address range of section %s\n"), |
1160 | loc_string, sec_name); | |
c14c28ba PP |
1161 | else |
1162 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1163 | printf_filtered (_("%s in %s overlay section %s\n"), |
1164 | loc_string, mapped, sec_name); | |
c14c28ba | 1165 | else |
e2fd701e DE |
1166 | printf_filtered (_("%s in section %s\n"), |
1167 | loc_string, sec_name); | |
1168 | ||
1169 | do_cleanups (old_chain); | |
c5aa993b JM |
1170 | } |
1171 | } | |
c906108c | 1172 | if (matches == 0) |
a3f17187 | 1173 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1174 | } |
1175 | ||
c906108c | 1176 | static void |
fba45db2 | 1177 | address_info (char *exp, int from_tty) |
c906108c | 1178 | { |
08922a10 | 1179 | struct block *block; |
768a979c UW |
1180 | struct gdbarch *gdbarch; |
1181 | int regno; | |
52f0bd74 AC |
1182 | struct symbol *sym; |
1183 | struct minimal_symbol *msymbol; | |
1184 | long val; | |
714835d5 | 1185 | struct obj_section *section; |
08922a10 | 1186 | CORE_ADDR load_addr, context_pc = 0; |
c906108c SS |
1187 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero |
1188 | if exp is a field of `this'. */ | |
1189 | ||
1190 | if (exp == 0) | |
8a3fe4f8 | 1191 | error (_("Argument required.")); |
c906108c | 1192 | |
08922a10 | 1193 | sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN, |
2570f2b7 | 1194 | &is_a_field_of_this); |
c906108c SS |
1195 | if (sym == NULL) |
1196 | { | |
1197 | if (is_a_field_of_this) | |
1198 | { | |
1199 | printf_filtered ("Symbol \""); | |
1200 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1201 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1202 | printf_filtered ("\" is a field of the local class variable "); |
1203 | if (current_language->la_language == language_objc) | |
2625d86c | 1204 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1205 | else |
2625d86c | 1206 | printf_filtered ("`this'\n"); |
c906108c SS |
1207 | return; |
1208 | } | |
1209 | ||
1210 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1211 | ||
1212 | if (msymbol != NULL) | |
1213 | { | |
5af949e3 | 1214 | gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
c906108c SS |
1215 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); |
1216 | ||
1217 | printf_filtered ("Symbol \""); | |
1218 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1219 | current_language->la_language, DMGL_ANSI); | |
1220 | printf_filtered ("\" is at "); | |
5af949e3 | 1221 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1222 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1223 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1224 | if (section_is_overlay (section)) |
1225 | { | |
1226 | load_addr = overlay_unmapped_address (load_addr, section); | |
1227 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1228 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1229 | printf_filtered (" in overlay section %s", |
1230 | section->the_bfd_section->name); | |
c906108c SS |
1231 | } |
1232 | printf_filtered (".\n"); | |
1233 | } | |
1234 | else | |
8a3fe4f8 | 1235 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1236 | return; |
1237 | } | |
1238 | ||
1239 | printf_filtered ("Symbol \""); | |
3567439c | 1240 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1241 | current_language->la_language, DMGL_ANSI); |
1242 | printf_filtered ("\" is "); | |
c5aa993b | 1243 | val = SYMBOL_VALUE (sym); |
714835d5 | 1244 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1245 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1246 | |
1247 | switch (SYMBOL_CLASS (sym)) | |
1248 | { | |
1249 | case LOC_CONST: | |
1250 | case LOC_CONST_BYTES: | |
1251 | printf_filtered ("constant"); | |
1252 | break; | |
1253 | ||
1254 | case LOC_LABEL: | |
1255 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1256 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1257 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1258 | if (section_is_overlay (section)) |
1259 | { | |
1260 | load_addr = overlay_unmapped_address (load_addr, section); | |
1261 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1262 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1263 | printf_filtered (" in overlay section %s", |
1264 | section->the_bfd_section->name); | |
c906108c SS |
1265 | } |
1266 | break; | |
1267 | ||
4c2df51b | 1268 | case LOC_COMPUTED: |
a67af2b9 | 1269 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1270 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1271 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1272 | function) location in a function's symbol. Oops! For the |
1273 | moment enable this when/where applicable. */ | |
08922a10 | 1274 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc, gdb_stdout); |
4c2df51b DJ |
1275 | break; |
1276 | ||
c906108c | 1277 | case LOC_REGISTER: |
768a979c UW |
1278 | /* GDBARCH is the architecture associated with the objfile the symbol |
1279 | is defined in; the target architecture may be different, and may | |
1280 | provide additional registers. However, we do not know the target | |
1281 | architecture at this point. We assume the objfile architecture | |
1282 | will contain all the standard registers that occur in debug info | |
1283 | in that objfile. */ | |
1284 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1285 | ||
2a2d4dc3 AS |
1286 | if (SYMBOL_IS_ARGUMENT (sym)) |
1287 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1288 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1289 | else |
1290 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1291 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1292 | break; |
1293 | ||
1294 | case LOC_STATIC: | |
a3f17187 | 1295 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1296 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1297 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1298 | if (section_is_overlay (section)) |
1299 | { | |
1300 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1301 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1302 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1303 | printf_filtered (_(" in overlay section %s"), |
1304 | section->the_bfd_section->name); | |
c906108c SS |
1305 | } |
1306 | break; | |
1307 | ||
c906108c | 1308 | case LOC_REGPARM_ADDR: |
768a979c UW |
1309 | /* Note comment at LOC_REGISTER. */ |
1310 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1311 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1312 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1313 | break; |
1314 | ||
1315 | case LOC_ARG: | |
a3f17187 | 1316 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1317 | break; |
1318 | ||
c906108c | 1319 | case LOC_LOCAL: |
a3f17187 | 1320 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1321 | break; |
1322 | ||
1323 | case LOC_REF_ARG: | |
a3f17187 | 1324 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1325 | break; |
1326 | ||
c906108c | 1327 | case LOC_TYPEDEF: |
a3f17187 | 1328 | printf_filtered (_("a typedef")); |
c906108c SS |
1329 | break; |
1330 | ||
1331 | case LOC_BLOCK: | |
a3f17187 | 1332 | printf_filtered (_("a function at address ")); |
675dcf4f | 1333 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1334 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1335 | if (section_is_overlay (section)) |
1336 | { | |
1337 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1338 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1339 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1340 | printf_filtered (_(" in overlay section %s"), |
1341 | section->the_bfd_section->name); | |
c906108c SS |
1342 | } |
1343 | break; | |
1344 | ||
1345 | case LOC_UNRESOLVED: | |
1346 | { | |
1347 | struct minimal_symbol *msym; | |
1348 | ||
3567439c | 1349 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1350 | if (msym == NULL) |
1351 | printf_filtered ("unresolved"); | |
1352 | else | |
1353 | { | |
714835d5 | 1354 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1355 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1356 | |
1357 | if (section | |
1358 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1359 | printf_filtered (_("a thread-local variable at offset %s " | |
1360 | "in the thread-local storage for `%s'"), | |
5af949e3 UW |
1361 | paddress (gdbarch, load_addr), |
1362 | section->objfile->name); | |
e0740f77 | 1363 | else |
c906108c | 1364 | { |
e0740f77 | 1365 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1366 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1367 | if (section_is_overlay (section)) |
1368 | { | |
1369 | load_addr = overlay_unmapped_address (load_addr, section); | |
1370 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1371 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1372 | printf_filtered (_(" in overlay section %s"), |
1373 | section->the_bfd_section->name); | |
1374 | } | |
c906108c SS |
1375 | } |
1376 | } | |
1377 | } | |
1378 | break; | |
1379 | ||
c906108c | 1380 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1381 | printf_filtered (_("optimized out")); |
c906108c | 1382 | break; |
c5aa993b | 1383 | |
c906108c | 1384 | default: |
a3f17187 | 1385 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1386 | break; |
1387 | } | |
1388 | printf_filtered (".\n"); | |
1389 | } | |
1390 | \f | |
675dcf4f MK |
1391 | |
1392 | static void | |
fba45db2 | 1393 | x_command (char *exp, int from_tty) |
c906108c SS |
1394 | { |
1395 | struct expression *expr; | |
1396 | struct format_data fmt; | |
1397 | struct cleanup *old_chain; | |
1398 | struct value *val; | |
1399 | ||
a6bac58e | 1400 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1401 | fmt.size = last_size; |
1402 | fmt.count = 1; | |
a6bac58e | 1403 | fmt.raw = 0; |
c906108c SS |
1404 | |
1405 | if (exp && *exp == '/') | |
1406 | { | |
1407 | exp++; | |
1408 | fmt = decode_format (&exp, last_format, last_size); | |
1409 | } | |
1410 | ||
1411 | /* If we have an expression, evaluate it and use it as the address. */ | |
1412 | ||
1413 | if (exp != 0 && *exp != 0) | |
1414 | { | |
1415 | expr = parse_expression (exp); | |
675dcf4f MK |
1416 | /* Cause expression not to be there any more if this command is |
1417 | repeated with Newline. But don't clobber a user-defined | |
1418 | command's definition. */ | |
c906108c SS |
1419 | if (from_tty) |
1420 | *exp = 0; | |
c13c43fd | 1421 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1422 | val = evaluate_expression (expr); |
df407dfe | 1423 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1424 | val = value_ind (val); |
1425 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1426 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1427 | if (/* last_format == 'i' && */ |
df407dfe | 1428 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1429 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1430 | next_address = value_address (val); |
c906108c | 1431 | else |
1aa20aa8 | 1432 | next_address = value_as_address (val); |
5d3729b5 UW |
1433 | |
1434 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1435 | do_cleanups (old_chain); |
1436 | } | |
1437 | ||
5d3729b5 UW |
1438 | if (!next_gdbarch) |
1439 | error_no_arg (_("starting display address")); | |
1440 | ||
1441 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1442 | |
675dcf4f | 1443 | /* If the examine succeeds, we remember its size and format for next |
9a22f0d0 PM |
1444 | time. Set last_size to 'b' for strings. */ |
1445 | if (fmt.format == 's') | |
1446 | last_size = 'b'; | |
1447 | else | |
1448 | last_size = fmt.size; | |
c906108c SS |
1449 | last_format = fmt.format; |
1450 | ||
1451 | /* Set a couple of internal variables if appropriate. */ | |
1452 | if (last_examine_value) | |
1453 | { | |
1454 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1455 | the correct pointer type. */ |
4478b372 | 1456 | struct type *pointer_type |
df407dfe | 1457 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1458 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1459 | value_from_pointer (pointer_type, |
1460 | last_examine_address)); | |
c5aa993b | 1461 | |
675dcf4f MK |
1462 | /* Make contents of last address examined available to the user |
1463 | as $__. If the last value has not been fetched from memory | |
1464 | then don't fetch it now; instead mark it by voiding the $__ | |
1465 | variable. */ | |
d69fe07e | 1466 | if (value_lazy (last_examine_value)) |
4fa62494 | 1467 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1468 | else |
1469 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1470 | } | |
1471 | } | |
c906108c | 1472 | \f |
c5aa993b | 1473 | |
c906108c SS |
1474 | /* Add an expression to the auto-display chain. |
1475 | Specify the expression. */ | |
1476 | ||
1477 | static void | |
fba45db2 | 1478 | display_command (char *exp, int from_tty) |
c906108c SS |
1479 | { |
1480 | struct format_data fmt; | |
52f0bd74 AC |
1481 | struct expression *expr; |
1482 | struct display *new; | |
c906108c SS |
1483 | int display_it = 1; |
1484 | ||
1485 | #if defined(TUI) | |
021e7609 AC |
1486 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1487 | `tui_version'. */ | |
fd33e6cb | 1488 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1489 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1490 | #endif |
1491 | ||
1492 | if (display_it) | |
1493 | { | |
1494 | if (exp == 0) | |
1495 | { | |
1496 | do_displays (); | |
1497 | return; | |
1498 | } | |
1499 | ||
1500 | if (*exp == '/') | |
1501 | { | |
1502 | exp++; | |
1503 | fmt = decode_format (&exp, 0, 0); | |
1504 | if (fmt.size && fmt.format == 0) | |
1505 | fmt.format = 'x'; | |
1506 | if (fmt.format == 'i' || fmt.format == 's') | |
1507 | fmt.size = 'b'; | |
1508 | } | |
1509 | else | |
1510 | { | |
1511 | fmt.format = 0; | |
1512 | fmt.size = 0; | |
1513 | fmt.count = 0; | |
a6bac58e | 1514 | fmt.raw = 0; |
c906108c SS |
1515 | } |
1516 | ||
a3247a22 | 1517 | innermost_block = NULL; |
c906108c SS |
1518 | expr = parse_expression (exp); |
1519 | ||
1520 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1521 | ||
fa8a61dc | 1522 | new->exp_string = xstrdup (exp); |
c906108c SS |
1523 | new->exp = expr; |
1524 | new->block = innermost_block; | |
6c95b8df | 1525 | new->pspace = current_program_space; |
c906108c SS |
1526 | new->next = display_chain; |
1527 | new->number = ++display_number; | |
1528 | new->format = fmt; | |
b5de0fa7 | 1529 | new->enabled_p = 1; |
c906108c SS |
1530 | display_chain = new; |
1531 | ||
1532 | if (from_tty && target_has_execution) | |
1533 | do_one_display (new); | |
1534 | ||
1535 | dont_repeat (); | |
1536 | } | |
1537 | } | |
1538 | ||
1539 | static void | |
fba45db2 | 1540 | free_display (struct display *d) |
c906108c | 1541 | { |
fa8a61dc | 1542 | xfree (d->exp_string); |
b8c9b27d KB |
1543 | xfree (d->exp); |
1544 | xfree (d); | |
c906108c SS |
1545 | } |
1546 | ||
675dcf4f MK |
1547 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1548 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1549 | |
1550 | void | |
fba45db2 | 1551 | clear_displays (void) |
c906108c | 1552 | { |
52f0bd74 | 1553 | struct display *d; |
c906108c SS |
1554 | |
1555 | while ((d = display_chain) != NULL) | |
1556 | { | |
c906108c | 1557 | display_chain = d->next; |
fa8a61dc | 1558 | free_display (d); |
c906108c SS |
1559 | } |
1560 | } | |
1561 | ||
1562 | /* Delete the auto-display number NUM. */ | |
1563 | ||
1564 | static void | |
fba45db2 | 1565 | delete_display (int num) |
c906108c | 1566 | { |
52f0bd74 | 1567 | struct display *d1, *d; |
c906108c SS |
1568 | |
1569 | if (!display_chain) | |
8a3fe4f8 | 1570 | error (_("No display number %d."), num); |
c906108c SS |
1571 | |
1572 | if (display_chain->number == num) | |
1573 | { | |
1574 | d1 = display_chain; | |
1575 | display_chain = d1->next; | |
1576 | free_display (d1); | |
1577 | } | |
1578 | else | |
c5aa993b | 1579 | for (d = display_chain;; d = d->next) |
c906108c SS |
1580 | { |
1581 | if (d->next == 0) | |
8a3fe4f8 | 1582 | error (_("No display number %d."), num); |
c906108c SS |
1583 | if (d->next->number == num) |
1584 | { | |
1585 | d1 = d->next; | |
1586 | d->next = d1->next; | |
1587 | free_display (d1); | |
1588 | break; | |
1589 | } | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | /* Delete some values from the auto-display chain. | |
1594 | Specify the element numbers. */ | |
1595 | ||
1596 | static void | |
fba45db2 | 1597 | undisplay_command (char *args, int from_tty) |
c906108c | 1598 | { |
52f0bd74 AC |
1599 | char *p = args; |
1600 | char *p1; | |
1601 | int num; | |
c906108c SS |
1602 | |
1603 | if (args == 0) | |
1604 | { | |
9e2f0ad4 | 1605 | if (query (_("Delete all auto-display expressions? "))) |
c906108c SS |
1606 | clear_displays (); |
1607 | dont_repeat (); | |
1608 | return; | |
1609 | } | |
1610 | ||
1611 | while (*p) | |
1612 | { | |
1613 | p1 = p; | |
c5aa993b JM |
1614 | while (*p1 >= '0' && *p1 <= '9') |
1615 | p1++; | |
c906108c | 1616 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1617 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1618 | |
1619 | num = atoi (p); | |
1620 | ||
1621 | delete_display (num); | |
1622 | ||
1623 | p = p1; | |
c5aa993b JM |
1624 | while (*p == ' ' || *p == '\t') |
1625 | p++; | |
c906108c SS |
1626 | } |
1627 | dont_repeat (); | |
1628 | } | |
1629 | ||
1630 | /* Display a single auto-display. | |
1631 | Do nothing if the display cannot be printed in the current context, | |
1632 | or if the display is disabled. */ | |
1633 | ||
1634 | static void | |
fba45db2 | 1635 | do_one_display (struct display *d) |
c906108c SS |
1636 | { |
1637 | int within_current_scope; | |
1638 | ||
b5de0fa7 | 1639 | if (d->enabled_p == 0) |
c906108c SS |
1640 | return; |
1641 | ||
704e9165 UW |
1642 | /* The expression carries the architecture that was used at parse time. |
1643 | This is a problem if the expression depends on architecture features | |
1644 | (e.g. register numbers), and the current architecture is now different. | |
1645 | For example, a display statement like "display/i $pc" is expected to | |
1646 | display the PC register of the current architecture, not the arch at | |
1647 | the time the display command was given. Therefore, we re-parse the | |
1648 | expression if the current architecture has changed. */ | |
1649 | if (d->exp != NULL && d->exp->gdbarch != get_current_arch ()) | |
1650 | { | |
1651 | xfree (d->exp); | |
1652 | d->exp = NULL; | |
1653 | d->block = NULL; | |
1654 | } | |
1655 | ||
a3247a22 PP |
1656 | if (d->exp == NULL) |
1657 | { | |
1658 | volatile struct gdb_exception ex; | |
1659 | TRY_CATCH (ex, RETURN_MASK_ALL) | |
1660 | { | |
1661 | innermost_block = NULL; | |
1662 | d->exp = parse_expression (d->exp_string); | |
1663 | d->block = innermost_block; | |
1664 | } | |
1665 | if (ex.reason < 0) | |
1666 | { | |
1667 | /* Can't re-parse the expression. Disable this display item. */ | |
1668 | d->enabled_p = 0; | |
1669 | warning (_("Unable to display \"%s\": %s"), | |
1670 | d->exp_string, ex.message); | |
1671 | return; | |
1672 | } | |
1673 | } | |
1674 | ||
c906108c | 1675 | if (d->block) |
6c95b8df PA |
1676 | { |
1677 | if (d->pspace == current_program_space) | |
1678 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1679 | else | |
1680 | within_current_scope = 0; | |
1681 | } | |
c906108c SS |
1682 | else |
1683 | within_current_scope = 1; | |
1684 | if (!within_current_scope) | |
1685 | return; | |
1686 | ||
1687 | current_display_number = d->number; | |
1688 | ||
1689 | annotate_display_begin (); | |
1690 | printf_filtered ("%d", d->number); | |
1691 | annotate_display_number_end (); | |
1692 | printf_filtered (": "); | |
1693 | if (d->format.size) | |
1694 | { | |
1695 | CORE_ADDR addr; | |
3d6d86c6 | 1696 | struct value *val; |
c906108c SS |
1697 | |
1698 | annotate_display_format (); | |
1699 | ||
1700 | printf_filtered ("x/"); | |
1701 | if (d->format.count != 1) | |
1702 | printf_filtered ("%d", d->format.count); | |
1703 | printf_filtered ("%c", d->format.format); | |
1704 | if (d->format.format != 'i' && d->format.format != 's') | |
1705 | printf_filtered ("%c", d->format.size); | |
1706 | printf_filtered (" "); | |
1707 | ||
1708 | annotate_display_expression (); | |
1709 | ||
fa8a61dc | 1710 | puts_filtered (d->exp_string); |
c906108c SS |
1711 | annotate_display_expression_end (); |
1712 | ||
6a2eb474 | 1713 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1714 | printf_filtered ("\n"); |
1715 | else | |
1716 | printf_filtered (" "); | |
c5aa993b | 1717 | |
c906108c | 1718 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1719 | addr = value_as_address (val); |
c906108c | 1720 | if (d->format.format == 'i') |
d80b854b | 1721 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); |
c906108c SS |
1722 | |
1723 | annotate_display_value (); | |
1724 | ||
5d3729b5 | 1725 | do_examine (d->format, d->exp->gdbarch, addr); |
c906108c SS |
1726 | } |
1727 | else | |
1728 | { | |
79a45b7d TT |
1729 | struct value_print_options opts; |
1730 | ||
c906108c SS |
1731 | annotate_display_format (); |
1732 | ||
1733 | if (d->format.format) | |
1734 | printf_filtered ("/%c ", d->format.format); | |
1735 | ||
1736 | annotate_display_expression (); | |
1737 | ||
fa8a61dc | 1738 | puts_filtered (d->exp_string); |
c906108c SS |
1739 | annotate_display_expression_end (); |
1740 | ||
1741 | printf_filtered (" = "); | |
1742 | ||
1743 | annotate_display_expression (); | |
1744 | ||
79a45b7d | 1745 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1746 | opts.raw = d->format.raw; |
c906108c | 1747 | print_formatted (evaluate_expression (d->exp), |
79a45b7d | 1748 | d->format.size, &opts, gdb_stdout); |
c906108c SS |
1749 | printf_filtered ("\n"); |
1750 | } | |
1751 | ||
1752 | annotate_display_end (); | |
1753 | ||
1754 | gdb_flush (gdb_stdout); | |
1755 | current_display_number = -1; | |
1756 | } | |
1757 | ||
1758 | /* Display all of the values on the auto-display chain which can be | |
1759 | evaluated in the current scope. */ | |
1760 | ||
1761 | void | |
fba45db2 | 1762 | do_displays (void) |
c906108c | 1763 | { |
52f0bd74 | 1764 | struct display *d; |
c906108c SS |
1765 | |
1766 | for (d = display_chain; d; d = d->next) | |
1767 | do_one_display (d); | |
1768 | } | |
1769 | ||
1770 | /* Delete the auto-display which we were in the process of displaying. | |
1771 | This is done when there is an error or a signal. */ | |
1772 | ||
1773 | void | |
fba45db2 | 1774 | disable_display (int num) |
c906108c | 1775 | { |
52f0bd74 | 1776 | struct display *d; |
c906108c SS |
1777 | |
1778 | for (d = display_chain; d; d = d->next) | |
1779 | if (d->number == num) | |
1780 | { | |
b5de0fa7 | 1781 | d->enabled_p = 0; |
c906108c SS |
1782 | return; |
1783 | } | |
a3f17187 | 1784 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1785 | } |
c5aa993b | 1786 | |
c906108c | 1787 | void |
fba45db2 | 1788 | disable_current_display (void) |
c906108c SS |
1789 | { |
1790 | if (current_display_number >= 0) | |
1791 | { | |
1792 | disable_display (current_display_number); | |
675dcf4f MK |
1793 | fprintf_unfiltered (gdb_stderr, _("\ |
1794 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1795 | current_display_number); |
c906108c SS |
1796 | } |
1797 | current_display_number = -1; | |
1798 | } | |
1799 | ||
1800 | static void | |
fba45db2 | 1801 | display_info (char *ignore, int from_tty) |
c906108c | 1802 | { |
52f0bd74 | 1803 | struct display *d; |
c906108c SS |
1804 | |
1805 | if (!display_chain) | |
a3f17187 | 1806 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1807 | else |
a3f17187 AC |
1808 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1809 | Num Enb Expression\n")); | |
c906108c SS |
1810 | |
1811 | for (d = display_chain; d; d = d->next) | |
1812 | { | |
b5de0fa7 | 1813 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1814 | if (d->format.size) |
1815 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1816 | d->format.format); |
c906108c SS |
1817 | else if (d->format.format) |
1818 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1819 | puts_filtered (d->exp_string); |
ae767bfb | 1820 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1821 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1822 | printf_filtered ("\n"); |
1823 | gdb_flush (gdb_stdout); | |
1824 | } | |
1825 | } | |
1826 | ||
1827 | static void | |
fba45db2 | 1828 | enable_display (char *args, int from_tty) |
c906108c | 1829 | { |
52f0bd74 AC |
1830 | char *p = args; |
1831 | char *p1; | |
1832 | int num; | |
1833 | struct display *d; | |
c906108c SS |
1834 | |
1835 | if (p == 0) | |
1836 | { | |
1837 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1838 | d->enabled_p = 1; |
c906108c SS |
1839 | } |
1840 | else | |
1841 | while (*p) | |
1842 | { | |
1843 | p1 = p; | |
1844 | while (*p1 >= '0' && *p1 <= '9') | |
1845 | p1++; | |
1846 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1847 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1848 | |
c906108c | 1849 | num = atoi (p); |
c5aa993b | 1850 | |
c906108c SS |
1851 | for (d = display_chain; d; d = d->next) |
1852 | if (d->number == num) | |
1853 | { | |
b5de0fa7 | 1854 | d->enabled_p = 1; |
c906108c SS |
1855 | goto win; |
1856 | } | |
a3f17187 | 1857 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1858 | win: |
1859 | p = p1; | |
1860 | while (*p == ' ' || *p == '\t') | |
1861 | p++; | |
1862 | } | |
1863 | } | |
1864 | ||
c906108c | 1865 | static void |
fba45db2 | 1866 | disable_display_command (char *args, int from_tty) |
c906108c | 1867 | { |
52f0bd74 AC |
1868 | char *p = args; |
1869 | char *p1; | |
1870 | struct display *d; | |
c906108c SS |
1871 | |
1872 | if (p == 0) | |
1873 | { | |
1874 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1875 | d->enabled_p = 0; |
c906108c SS |
1876 | } |
1877 | else | |
1878 | while (*p) | |
1879 | { | |
1880 | p1 = p; | |
1881 | while (*p1 >= '0' && *p1 <= '9') | |
1882 | p1++; | |
1883 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1884 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1885 | |
c906108c SS |
1886 | disable_display (atoi (p)); |
1887 | ||
1888 | p = p1; | |
1889 | while (*p == ' ' || *p == '\t') | |
1890 | p++; | |
1891 | } | |
1892 | } | |
a3247a22 PP |
1893 | |
1894 | /* Return 1 if D uses SOLIB (and will become dangling when SOLIB | |
1895 | is unloaded), otherwise return 0. */ | |
1896 | ||
1897 | static int | |
1898 | display_uses_solib_p (const struct display *d, | |
1899 | const struct so_list *solib) | |
1900 | { | |
36dc683c | 1901 | int endpos; |
a3247a22 | 1902 | struct expression *const exp = d->exp; |
36dc683c | 1903 | const union exp_element *const elts = exp->elts; |
a3247a22 PP |
1904 | |
1905 | if (d->block != NULL | |
6c95b8df | 1906 | && d->pspace == solib->pspace |
5fd1a349 | 1907 | && solib_contains_address_p (solib, d->block->startaddr)) |
a3247a22 PP |
1908 | return 1; |
1909 | ||
36dc683c | 1910 | for (endpos = exp->nelts; endpos > 0; ) |
a3247a22 | 1911 | { |
36dc683c DE |
1912 | int i, args, oplen = 0; |
1913 | ||
1914 | exp->language_defn->la_exp_desc->operator_length (exp, endpos, | |
1915 | &oplen, &args); | |
1916 | gdb_assert (oplen > 0); | |
a3247a22 | 1917 | |
36dc683c | 1918 | i = endpos - oplen; |
a3247a22 PP |
1919 | if (elts[i].opcode == OP_VAR_VALUE) |
1920 | { | |
1921 | const struct block *const block = elts[i + 1].block; | |
1922 | const struct symbol *const symbol = elts[i + 2].symbol; | |
a3247a22 PP |
1923 | |
1924 | if (block != NULL | |
6c95b8df PA |
1925 | && solib_contains_address_p (solib, |
1926 | block->startaddr)) | |
a3247a22 PP |
1927 | return 1; |
1928 | ||
52334bf5 JK |
1929 | /* SYMBOL_OBJ_SECTION (symbol) may be NULL. */ |
1930 | if (SYMBOL_SYMTAB (symbol)->objfile == solib->objfile) | |
a3247a22 PP |
1931 | return 1; |
1932 | } | |
36dc683c | 1933 | endpos -= oplen; |
a3247a22 | 1934 | } |
36dc683c | 1935 | |
a3247a22 PP |
1936 | return 0; |
1937 | } | |
1938 | ||
1939 | /* display_chain items point to blocks and expressions. Some expressions in | |
1940 | turn may point to symbols. | |
1941 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1942 | obstack_free'd when a shared library is unloaded. | |
1943 | Clear pointers that are about to become dangling. | |
1944 | Both .exp and .block fields will be restored next time we need to display | |
1945 | an item by re-parsing .exp_string field in the new execution context. */ | |
1946 | ||
1947 | static void | |
1948 | clear_dangling_display_expressions (struct so_list *solib) | |
1949 | { | |
1950 | struct display *d; | |
1951 | struct objfile *objfile = NULL; | |
1952 | ||
1953 | for (d = display_chain; d; d = d->next) | |
1954 | { | |
1955 | if (d->exp && display_uses_solib_p (d, solib)) | |
1956 | { | |
1957 | xfree (d->exp); | |
1958 | d->exp = NULL; | |
1959 | d->block = NULL; | |
1960 | } | |
1961 | } | |
1962 | } | |
c906108c | 1963 | \f |
c5aa993b | 1964 | |
675dcf4f | 1965 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1966 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1967 | name will be used. STREAM is the ui_file on which to print the | |
1968 | value. INDENT specifies the number of indent levels to print | |
1969 | before printing the variable name. */ | |
c906108c SS |
1970 | |
1971 | void | |
aad95b57 TT |
1972 | print_variable_and_value (const char *name, struct symbol *var, |
1973 | struct frame_info *frame, | |
1974 | struct ui_file *stream, int indent) | |
c906108c | 1975 | { |
aad95b57 | 1976 | struct value *val; |
79a45b7d | 1977 | struct value_print_options opts; |
c906108c | 1978 | |
aad95b57 TT |
1979 | if (!name) |
1980 | name = SYMBOL_PRINT_NAME (var); | |
1981 | ||
1982 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
1983 | ||
1984 | val = read_var_value (var, frame); | |
79a45b7d | 1985 | get_user_print_options (&opts); |
aad95b57 TT |
1986 | common_val_print (val, stream, indent, &opts, current_language); |
1987 | fprintf_filtered (stream, "\n"); | |
c906108c SS |
1988 | } |
1989 | ||
c906108c | 1990 | static void |
fba45db2 | 1991 | printf_command (char *arg, int from_tty) |
c906108c | 1992 | { |
52f0bd74 AC |
1993 | char *f = NULL; |
1994 | char *s = arg; | |
c906108c | 1995 | char *string = NULL; |
3d6d86c6 | 1996 | struct value **val_args; |
c906108c SS |
1997 | char *substrings; |
1998 | char *current_substring; | |
1999 | int nargs = 0; | |
2000 | int allocated_args = 20; | |
2001 | struct cleanup *old_cleanups; | |
2002 | ||
675dcf4f | 2003 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 2004 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2005 | |
2006 | if (s == 0) | |
e2e0b3e5 | 2007 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
2008 | |
2009 | /* Skip white space before format string */ | |
c5aa993b JM |
2010 | while (*s == ' ' || *s == '\t') |
2011 | s++; | |
c906108c | 2012 | |
675dcf4f | 2013 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 2014 | if (*s++ != '"') |
8a3fe4f8 | 2015 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
2016 | |
2017 | /* Parse the format-control string and copy it into the string STRING, | |
2018 | processing some kinds of escape sequence. */ | |
2019 | ||
2020 | f = string = (char *) alloca (strlen (s) + 1); | |
2021 | ||
2022 | while (*s != '"') | |
2023 | { | |
2024 | int c = *s++; | |
2025 | switch (c) | |
2026 | { | |
2027 | case '\0': | |
8a3fe4f8 | 2028 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
2029 | |
2030 | case '\\': | |
2031 | switch (c = *s++) | |
2032 | { | |
2033 | case '\\': | |
2034 | *f++ = '\\'; | |
2035 | break; | |
2036 | case 'a': | |
c906108c | 2037 | *f++ = '\a'; |
c906108c SS |
2038 | break; |
2039 | case 'b': | |
2040 | *f++ = '\b'; | |
2041 | break; | |
2042 | case 'f': | |
2043 | *f++ = '\f'; | |
2044 | break; | |
2045 | case 'n': | |
2046 | *f++ = '\n'; | |
2047 | break; | |
2048 | case 'r': | |
2049 | *f++ = '\r'; | |
2050 | break; | |
2051 | case 't': | |
2052 | *f++ = '\t'; | |
2053 | break; | |
2054 | case 'v': | |
2055 | *f++ = '\v'; | |
2056 | break; | |
2057 | case '"': | |
2058 | *f++ = '"'; | |
2059 | break; | |
2060 | default: | |
2061 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 2062 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
2063 | c); |
2064 | } | |
2065 | break; | |
2066 | ||
2067 | default: | |
2068 | *f++ = c; | |
2069 | } | |
2070 | } | |
2071 | ||
2072 | /* Skip over " and following space and comma. */ | |
2073 | s++; | |
2074 | *f++ = '\0'; | |
c5aa993b JM |
2075 | while (*s == ' ' || *s == '\t') |
2076 | s++; | |
c906108c SS |
2077 | |
2078 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2079 | error (_("Invalid argument syntax")); |
c906108c | 2080 | |
c5aa993b JM |
2081 | if (*s == ',') |
2082 | s++; | |
2083 | while (*s == ' ' || *s == '\t') | |
2084 | s++; | |
c906108c SS |
2085 | |
2086 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2087 | substrings = alloca (strlen (string) * 2); | |
2088 | current_substring = substrings; | |
2089 | ||
2090 | { | |
2091 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2092 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2093 | something of the right size. */ | |
2094 | ||
c5aa993b JM |
2095 | enum argclass |
2096 | { | |
6c7a06a3 TT |
2097 | int_arg, long_arg, long_long_arg, ptr_arg, |
2098 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 2099 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 2100 | }; |
c906108c SS |
2101 | enum argclass *argclass; |
2102 | enum argclass this_argclass; | |
2103 | char *last_arg; | |
2104 | int nargs_wanted; | |
c906108c SS |
2105 | int i; |
2106 | ||
2107 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2108 | nargs_wanted = 0; | |
2109 | f = string; | |
2110 | last_arg = string; | |
2111 | while (*f) | |
2112 | if (*f++ == '%') | |
2113 | { | |
46e9880c DJ |
2114 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2115 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2116 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2117 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2118 | int bad = 0; |
2119 | ||
2120 | /* Check the validity of the format specifier, and work | |
2121 | out what argument it expects. We only accept C89 | |
2122 | format strings, with the exception of long long (which | |
2123 | we autoconf for). */ | |
2124 | ||
2125 | /* Skip over "%%". */ | |
2126 | if (*f == '%') | |
c906108c | 2127 | { |
c906108c | 2128 | f++; |
46e9880c | 2129 | continue; |
c906108c | 2130 | } |
46e9880c DJ |
2131 | |
2132 | /* The first part of a format specifier is a set of flag | |
2133 | characters. */ | |
2134 | while (strchr ("0-+ #", *f)) | |
2135 | { | |
2136 | if (*f == '#') | |
2137 | seen_hash = 1; | |
2138 | else if (*f == '0') | |
2139 | seen_zero = 1; | |
2140 | else if (*f == ' ') | |
2141 | seen_space = 1; | |
2142 | else if (*f == '+') | |
2143 | seen_plus = 1; | |
2144 | f++; | |
2145 | } | |
2146 | ||
2147 | /* The next part of a format specifier is a width. */ | |
2148 | while (strchr ("0123456789", *f)) | |
2149 | f++; | |
2150 | ||
2151 | /* The next part of a format specifier is a precision. */ | |
2152 | if (*f == '.') | |
2153 | { | |
2154 | seen_prec = 1; | |
2155 | f++; | |
2156 | while (strchr ("0123456789", *f)) | |
2157 | f++; | |
2158 | } | |
2159 | ||
2160 | /* The next part of a format specifier is a length modifier. */ | |
2161 | if (*f == 'h') | |
2162 | { | |
2163 | seen_h = 1; | |
2164 | f++; | |
2165 | } | |
2166 | else if (*f == 'l') | |
2167 | { | |
2168 | f++; | |
2169 | lcount++; | |
2170 | if (*f == 'l') | |
2171 | { | |
2172 | f++; | |
2173 | lcount++; | |
2174 | } | |
2175 | } | |
2176 | else if (*f == 'L') | |
2177 | { | |
2178 | seen_big_l = 1; | |
2179 | f++; | |
2180 | } | |
0aea4bf3 LM |
2181 | /* Decimal32 modifier. */ |
2182 | else if (*f == 'H') | |
2183 | { | |
2184 | seen_big_h = 1; | |
2185 | f++; | |
2186 | } | |
2187 | /* Decimal64 and Decimal128 modifiers. */ | |
2188 | else if (*f == 'D') | |
2189 | { | |
2190 | f++; | |
2191 | ||
2192 | /* Check for a Decimal128. */ | |
2193 | if (*f == 'D') | |
2194 | { | |
2195 | f++; | |
2196 | seen_double_big_d = 1; | |
2197 | } | |
2198 | else | |
2199 | seen_big_d = 1; | |
2200 | } | |
46e9880c | 2201 | |
c906108c SS |
2202 | switch (*f) |
2203 | { | |
46e9880c DJ |
2204 | case 'u': |
2205 | if (seen_hash) | |
2206 | bad = 1; | |
2207 | /* FALLTHROUGH */ | |
2208 | ||
2209 | case 'o': | |
2210 | case 'x': | |
2211 | case 'X': | |
2212 | if (seen_space || seen_plus) | |
2213 | bad = 1; | |
2214 | /* FALLTHROUGH */ | |
2215 | ||
2216 | case 'd': | |
2217 | case 'i': | |
2218 | if (lcount == 0) | |
2219 | this_argclass = int_arg; | |
2220 | else if (lcount == 1) | |
2221 | this_argclass = long_arg; | |
2222 | else | |
2223 | this_argclass = long_long_arg; | |
2224 | ||
2225 | if (seen_big_l) | |
2226 | bad = 1; | |
2227 | break; | |
2228 | ||
2229 | case 'c': | |
6c7a06a3 TT |
2230 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2231 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2232 | bad = 1; |
2233 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2234 | bad = 1; | |
2235 | break; | |
2236 | ||
2237 | case 'p': | |
2238 | this_argclass = ptr_arg; | |
2239 | if (lcount || seen_h || seen_big_l) | |
2240 | bad = 1; | |
2241 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2242 | bad = 1; | |
2243 | break; | |
2244 | ||
c906108c | 2245 | case 's': |
6c7a06a3 TT |
2246 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2247 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2248 | bad = 1; |
2249 | if (seen_zero || seen_space || seen_plus) | |
2250 | bad = 1; | |
c906108c SS |
2251 | break; |
2252 | ||
2253 | case 'e': | |
2254 | case 'f': | |
2255 | case 'g': | |
46e9880c DJ |
2256 | case 'E': |
2257 | case 'G': | |
0aea4bf3 LM |
2258 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2259 | this_argclass = decfloat_arg; | |
2260 | else if (seen_big_l) | |
46e9880c DJ |
2261 | this_argclass = long_double_arg; |
2262 | else | |
2263 | this_argclass = double_arg; | |
2264 | ||
2265 | if (lcount || seen_h) | |
2266 | bad = 1; | |
c906108c SS |
2267 | break; |
2268 | ||
2269 | case '*': | |
8a3fe4f8 | 2270 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2271 | |
2272 | case 'n': | |
8a3fe4f8 | 2273 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2274 | |
46e9880c DJ |
2275 | case '\0': |
2276 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2277 | |
2278 | default: | |
46e9880c | 2279 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2280 | } |
46e9880c DJ |
2281 | |
2282 | if (bad) | |
2283 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
2284 | *f); | |
2285 | ||
c906108c | 2286 | f++; |
09d71d23 AS |
2287 | |
2288 | if (lcount > 1 && USE_PRINTF_I64) | |
2289 | { | |
2290 | /* Windows' printf does support long long, but not the usual way. | |
2291 | Convert %lld to %I64d. */ | |
2292 | int length_before_ll = f - last_arg - 1 - lcount; | |
2293 | strncpy (current_substring, last_arg, length_before_ll); | |
2294 | strcpy (current_substring + length_before_ll, "I64"); | |
2295 | current_substring[length_before_ll + 3] = | |
2296 | last_arg[length_before_ll + lcount]; | |
2297 | current_substring += length_before_ll + 4; | |
2298 | } | |
6c7a06a3 TT |
2299 | else if (this_argclass == wide_string_arg |
2300 | || this_argclass == wide_char_arg) | |
2301 | { | |
2302 | /* Convert %ls or %lc to %s. */ | |
2303 | int length_before_ls = f - last_arg - 2; | |
2304 | strncpy (current_substring, last_arg, length_before_ls); | |
2305 | strcpy (current_substring + length_before_ls, "s"); | |
2306 | current_substring += length_before_ls + 2; | |
2307 | } | |
09d71d23 AS |
2308 | else |
2309 | { | |
2310 | strncpy (current_substring, last_arg, f - last_arg); | |
2311 | current_substring += f - last_arg; | |
2312 | } | |
46e9880c DJ |
2313 | *current_substring++ = '\0'; |
2314 | last_arg = f; | |
2315 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2316 | } |
2317 | ||
2318 | /* Now, parse all arguments and evaluate them. | |
2319 | Store the VALUEs in VAL_ARGS. */ | |
2320 | ||
2321 | while (*s != '\0') | |
2322 | { | |
2323 | char *s1; | |
2324 | if (nargs == allocated_args) | |
f976f6d4 AC |
2325 | val_args = (struct value **) xrealloc ((char *) val_args, |
2326 | (allocated_args *= 2) | |
2327 | * sizeof (struct value *)); | |
c906108c SS |
2328 | s1 = s; |
2329 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2330 | |
c906108c SS |
2331 | nargs++; |
2332 | s = s1; | |
2333 | if (*s == ',') | |
2334 | s++; | |
2335 | } | |
c5aa993b | 2336 | |
c906108c | 2337 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2338 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2339 | |
2340 | /* Now actually print them. */ | |
2341 | current_substring = substrings; | |
2342 | for (i = 0; i < nargs; i++) | |
2343 | { | |
2344 | switch (argclass[i]) | |
2345 | { | |
2346 | case string_arg: | |
2347 | { | |
777ea8f1 | 2348 | gdb_byte *str; |
c906108c SS |
2349 | CORE_ADDR tem; |
2350 | int j; | |
1aa20aa8 | 2351 | tem = value_as_address (val_args[i]); |
c906108c SS |
2352 | |
2353 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2354 | for (j = 0;; j++) |
c906108c | 2355 | { |
777ea8f1 | 2356 | gdb_byte c; |
c906108c | 2357 | QUIT; |
d4b2399a | 2358 | read_memory (tem + j, &c, 1); |
c906108c SS |
2359 | if (c == 0) |
2360 | break; | |
2361 | } | |
2362 | ||
2363 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2364 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2365 | if (j != 0) |
2366 | read_memory (tem, str, j); | |
c906108c SS |
2367 | str[j] = 0; |
2368 | ||
777ea8f1 | 2369 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2370 | } |
2371 | break; | |
6c7a06a3 TT |
2372 | case wide_string_arg: |
2373 | { | |
2374 | gdb_byte *str; | |
2375 | CORE_ADDR tem; | |
2376 | int j; | |
50810684 UW |
2377 | struct gdbarch *gdbarch |
2378 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2379 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2380 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2381 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2382 | int wcwidth = TYPE_LENGTH (wctype); |
2383 | gdb_byte *buf = alloca (wcwidth); | |
2384 | struct obstack output; | |
2385 | struct cleanup *inner_cleanup; | |
2386 | ||
2387 | tem = value_as_address (val_args[i]); | |
2388 | ||
2389 | /* This is a %s argument. Find the length of the string. */ | |
2390 | for (j = 0;; j += wcwidth) | |
2391 | { | |
2392 | QUIT; | |
2393 | read_memory (tem + j, buf, wcwidth); | |
e17a4113 | 2394 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) |
6c7a06a3 TT |
2395 | break; |
2396 | } | |
2397 | ||
2398 | /* Copy the string contents into a string inside GDB. */ | |
2399 | str = (gdb_byte *) alloca (j + wcwidth); | |
2400 | if (j != 0) | |
2401 | read_memory (tem, str, j); | |
2402 | memset (&str[j], 0, wcwidth); | |
2403 | ||
2404 | obstack_init (&output); | |
2405 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2406 | ||
f870a310 | 2407 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2408 | host_charset (), |
2409 | str, j, wcwidth, | |
2410 | &output, translit_char); | |
2411 | obstack_grow_str0 (&output, ""); | |
2412 | ||
2413 | printf_filtered (current_substring, obstack_base (&output)); | |
2414 | do_cleanups (inner_cleanup); | |
2415 | } | |
2416 | break; | |
2417 | case wide_char_arg: | |
2418 | { | |
50810684 UW |
2419 | struct gdbarch *gdbarch |
2420 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2421 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2422 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2423 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2424 | struct type *valtype; |
2425 | struct obstack output; | |
2426 | struct cleanup *inner_cleanup; | |
2427 | const gdb_byte *bytes; | |
2428 | ||
2429 | valtype = value_type (val_args[i]); | |
2430 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2431 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2432 | error (_("expected wchar_t argument for %%lc")); | |
2433 | ||
2434 | bytes = value_contents (val_args[i]); | |
2435 | ||
2436 | obstack_init (&output); | |
2437 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2438 | ||
f870a310 | 2439 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2440 | host_charset (), |
2441 | bytes, TYPE_LENGTH (valtype), | |
2442 | TYPE_LENGTH (valtype), | |
2443 | &output, translit_char); | |
2444 | obstack_grow_str0 (&output, ""); | |
2445 | ||
2446 | printf_filtered (current_substring, obstack_base (&output)); | |
2447 | do_cleanups (inner_cleanup); | |
2448 | } | |
2449 | break; | |
c906108c SS |
2450 | case double_arg: |
2451 | { | |
b806fb9a UW |
2452 | struct type *type = value_type (val_args[i]); |
2453 | DOUBLEST val; | |
2454 | int inv; | |
2455 | ||
2456 | /* If format string wants a float, unchecked-convert the value | |
2457 | to floating point of the same size. */ | |
50810684 | 2458 | type = float_type_from_length (type); |
b806fb9a UW |
2459 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2460 | if (inv) | |
2461 | error (_("Invalid floating value found in program.")); | |
2462 | ||
2463 | printf_filtered (current_substring, (double) val); | |
c906108c SS |
2464 | break; |
2465 | } | |
46e9880c DJ |
2466 | case long_double_arg: |
2467 | #ifdef HAVE_LONG_DOUBLE | |
2468 | { | |
b806fb9a UW |
2469 | struct type *type = value_type (val_args[i]); |
2470 | DOUBLEST val; | |
2471 | int inv; | |
2472 | ||
2473 | /* If format string wants a float, unchecked-convert the value | |
2474 | to floating point of the same size. */ | |
50810684 | 2475 | type = float_type_from_length (type); |
b806fb9a UW |
2476 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2477 | if (inv) | |
2478 | error (_("Invalid floating value found in program.")); | |
2479 | ||
2480 | printf_filtered (current_substring, (long double) val); | |
46e9880c DJ |
2481 | break; |
2482 | } | |
2483 | #else | |
2484 | error (_("long double not supported in printf")); | |
2485 | #endif | |
c906108c SS |
2486 | case long_long_arg: |
2487 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2488 | { | |
2489 | long long val = value_as_long (val_args[i]); | |
2490 | printf_filtered (current_substring, val); | |
2491 | break; | |
2492 | } | |
2493 | #else | |
8a3fe4f8 | 2494 | error (_("long long not supported in printf")); |
c906108c SS |
2495 | #endif |
2496 | case int_arg: | |
2497 | { | |
46e9880c DJ |
2498 | int val = value_as_long (val_args[i]); |
2499 | printf_filtered (current_substring, val); | |
2500 | break; | |
2501 | } | |
2502 | case long_arg: | |
2503 | { | |
c906108c SS |
2504 | long val = value_as_long (val_args[i]); |
2505 | printf_filtered (current_substring, val); | |
2506 | break; | |
2507 | } | |
1a619819 | 2508 | |
0aea4bf3 LM |
2509 | /* Handles decimal floating values. */ |
2510 | case decfloat_arg: | |
1a619819 | 2511 | { |
0aea4bf3 | 2512 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2513 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2514 | /* If we have native support for Decimal floating |
2515 | printing, handle it here. */ | |
2516 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2517 | #else |
1a619819 LM |
2518 | |
2519 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2520 | we convert the DFP values to string and print them using |
2521 | the %s format specifier. */ | |
2522 | ||
2523 | char *eos, *sos; | |
2524 | int nnull_chars = 0; | |
2525 | ||
2526 | /* Parameter data. */ | |
2527 | struct type *param_type = value_type (val_args[i]); | |
2528 | unsigned int param_len = TYPE_LENGTH (param_type); | |
50810684 | 2529 | struct gdbarch *gdbarch = get_type_arch (param_type); |
e17a4113 | 2530 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0aea4bf3 LM |
2531 | |
2532 | /* DFP output data. */ | |
2533 | struct value *dfp_value = NULL; | |
2534 | gdb_byte *dfp_ptr; | |
2535 | int dfp_len = 16; | |
2536 | gdb_byte dec[16]; | |
2537 | struct type *dfp_type = NULL; | |
2538 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2539 | |
2540 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2541 | and check for DFP length modifiers. */ |
1a619819 LM |
2542 | eos = current_substring + strlen (current_substring); |
2543 | ||
0aea4bf3 LM |
2544 | /* Look for the float/double format specifier. */ |
2545 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2546 | && *eos != 'g' && *eos != 'G') | |
2547 | eos--; | |
2548 | ||
2549 | sos = eos; | |
2550 | ||
2551 | /* Search for the '%' char and extract the size and type of | |
2552 | the output decimal value based on its modifiers | |
2553 | (%Hf, %Df, %DDf). */ | |
2554 | while (*--sos != '%') | |
2555 | { | |
2556 | if (*sos == 'H') | |
2557 | { | |
2558 | dfp_len = 4; | |
50810684 | 2559 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; |
0aea4bf3 LM |
2560 | } |
2561 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2562 | { | |
2563 | dfp_len = 16; | |
50810684 | 2564 | dfp_type = builtin_type (gdbarch)->builtin_declong; |
0aea4bf3 LM |
2565 | sos--; |
2566 | } | |
2567 | else | |
2568 | { | |
2569 | dfp_len = 8; | |
50810684 | 2570 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; |
0aea4bf3 LM |
2571 | } |
2572 | } | |
2573 | ||
2574 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2575 | *++sos = 's'; | |
2576 | ||
2577 | /* Go through the whole format string and pull the correct | |
2578 | number of chars back to compensate for the change in the | |
2579 | format specifier. */ | |
2580 | while (nnull_chars < nargs - i) | |
2581 | { | |
2582 | if (*eos == '\0') | |
2583 | nnull_chars++; | |
2584 | ||
2585 | *++sos = *++eos; | |
2586 | } | |
2587 | ||
2588 | /* Conversion between different DFP types. */ | |
2589 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
e17a4113 UW |
2590 | decimal_convert (param_ptr, param_len, byte_order, |
2591 | dec, dfp_len, byte_order); | |
0aea4bf3 LM |
2592 | else |
2593 | /* If this is a non-trivial conversion, just output 0. | |
2594 | A correct converted value can be displayed by explicitly | |
2595 | casting to a DFP type. */ | |
e17a4113 | 2596 | decimal_from_string (dec, dfp_len, byte_order, "0"); |
0aea4bf3 LM |
2597 | |
2598 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2599 | ||
2600 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2601 | ||
e17a4113 | 2602 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); |
1a619819 LM |
2603 | |
2604 | /* Print the DFP value. */ | |
2605 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2606 | |
1a619819 LM |
2607 | break; |
2608 | #endif | |
2609 | } | |
2610 | ||
2025a643 DJ |
2611 | case ptr_arg: |
2612 | { | |
2613 | /* We avoid the host's %p because pointers are too | |
2614 | likely to be the wrong size. The only interesting | |
2615 | modifier for %p is a width; extract that, and then | |
2616 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2617 | ||
2618 | char *p, *fmt, *fmt_p; | |
2619 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2620 | long long val = value_as_long (val_args[i]); | |
2621 | #else | |
2622 | long val = value_as_long (val_args[i]); | |
2623 | #endif | |
2624 | ||
2625 | fmt = alloca (strlen (current_substring) + 5); | |
2626 | ||
2627 | /* Copy up to the leading %. */ | |
2628 | p = current_substring; | |
2629 | fmt_p = fmt; | |
2630 | while (*p) | |
2631 | { | |
2632 | int is_percent = (*p == '%'); | |
2633 | *fmt_p++ = *p++; | |
2634 | if (is_percent) | |
2635 | { | |
2636 | if (*p == '%') | |
2637 | *fmt_p++ = *p++; | |
2638 | else | |
2639 | break; | |
2640 | } | |
2641 | } | |
2642 | ||
2643 | if (val != 0) | |
2644 | *fmt_p++ = '#'; | |
2645 | ||
2646 | /* Copy any width. */ | |
2647 | while (*p >= '0' && *p < '9') | |
2648 | *fmt_p++ = *p++; | |
2649 | ||
2650 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2651 | if (val != 0) | |
2652 | { | |
2653 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2654 | *fmt_p++ = 'l'; | |
2655 | #endif | |
2656 | *fmt_p++ = 'l'; | |
2657 | *fmt_p++ = 'x'; | |
2658 | *fmt_p++ = '\0'; | |
2659 | printf_filtered (fmt, val); | |
2660 | } | |
2661 | else | |
2662 | { | |
2663 | *fmt_p++ = 's'; | |
2664 | *fmt_p++ = '\0'; | |
2665 | printf_filtered (fmt, "(nil)"); | |
2666 | } | |
2667 | ||
2668 | break; | |
2669 | } | |
675dcf4f MK |
2670 | default: |
2671 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2672 | _("failed internal consistency check")); |
c906108c SS |
2673 | } |
2674 | /* Skip to the next substring. */ | |
2675 | current_substring += strlen (current_substring) + 1; | |
2676 | } | |
a0e0ef55 TT |
2677 | /* Print the portion of the format string after the last argument. |
2678 | Note that this will not include any ordinary %-specs, but it | |
2679 | might include "%%". That is why we use printf_filtered and not | |
1b93ff13 TT |
2680 | puts_filtered here. Also, we pass a dummy argument because |
2681 | some platforms have modified GCC to include -Wformat-security | |
2682 | by default, which will warn here if there is no argument. */ | |
2683 | printf_filtered (last_arg, 0); | |
c906108c SS |
2684 | } |
2685 | do_cleanups (old_cleanups); | |
2686 | } | |
c906108c | 2687 | |
c906108c | 2688 | void |
fba45db2 | 2689 | _initialize_printcmd (void) |
c906108c | 2690 | { |
c94fdfd0 EZ |
2691 | struct cmd_list_element *c; |
2692 | ||
c906108c SS |
2693 | current_display_number = -1; |
2694 | ||
a3247a22 PP |
2695 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2696 | ||
c906108c | 2697 | add_info ("address", address_info, |
1bedd215 | 2698 | _("Describe where symbol SYM is stored.")); |
c906108c | 2699 | |
1bedd215 AC |
2700 | add_info ("symbol", sym_info, _("\ |
2701 | Describe what symbol is at location ADDR.\n\ | |
2702 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2703 | |
1bedd215 AC |
2704 | add_com ("x", class_vars, x_command, _("\ |
2705 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2706 | ADDRESS is an expression for the memory address to examine.\n\ |
2707 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2708 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2709 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2710 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2711 | The specified number of objects of the specified size are printed\n\ |
2712 | according to the format.\n\n\ | |
2713 | Defaults for format and size letters are those previously used.\n\ | |
2714 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2715 | with this command or \"print\".")); |
c906108c | 2716 | |
c906108c SS |
2717 | #if 0 |
2718 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2719 | _("Print line number and file of definition of variable.")); |
c906108c | 2720 | #endif |
c5aa993b | 2721 | |
1bedd215 AC |
2722 | add_info ("display", display_info, _("\ |
2723 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2724 | |
1a966eab AC |
2725 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2726 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2727 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2728 | No argument means cancel all automatic-display expressions.\n\ | |
2729 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2730 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2731 | &cmdlist); |
c906108c | 2732 | |
1bedd215 AC |
2733 | add_com ("display", class_vars, display_command, _("\ |
2734 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2735 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2736 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2737 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2738 | and examining is done as in the \"x\" command.\n\n\ | |
2739 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2740 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2741 | |
1a966eab AC |
2742 | add_cmd ("display", class_vars, enable_display, _("\ |
2743 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2744 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2745 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2746 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2747 | |
1a966eab AC |
2748 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2749 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2750 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2751 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2752 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2753 | |
1a966eab AC |
2754 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2755 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2756 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2757 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2758 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2759 | |
1bedd215 AC |
2760 | add_com ("printf", class_vars, printf_command, _("\ |
2761 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2762 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2763 | |
1bedd215 AC |
2764 | add_com ("output", class_vars, output_command, _("\ |
2765 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2766 | This is useful in user-defined commands.")); | |
c906108c | 2767 | |
1bedd215 AC |
2768 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2769 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2770 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2771 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2772 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2773 | variable in the program being debugged. EXP is any valid expression.\n\ |
2774 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2775 | \n\ | |
2776 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2777 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2778 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2779 | if (dbx_commands) |
1bedd215 AC |
2780 | add_com ("assign", class_vars, set_command, _("\ |
2781 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2782 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2783 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2784 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2785 | variable in the program being debugged. EXP is any valid expression.\n\ |
2786 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2787 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2788 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2789 | |
2790 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2791 | c = add_com ("call", class_vars, call_command, _("\ |
2792 | Call a function in the program.\n\ | |
c906108c SS |
2793 | The argument is the function name and arguments, in the notation of the\n\ |
2794 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2795 | history, if it is not void.")); |
65d12d83 | 2796 | set_cmd_completer (c, expression_completer); |
c906108c | 2797 | |
1a966eab AC |
2798 | add_cmd ("variable", class_vars, set_command, _("\ |
2799 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2800 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2801 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2802 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2803 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2804 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2805 | &setlist); |
c906108c | 2806 | |
1bedd215 AC |
2807 | c = add_com ("print", class_vars, print_command, _("\ |
2808 | Print value of expression EXP.\n\ | |
c906108c SS |
2809 | Variables accessible are those of the lexical environment of the selected\n\ |
2810 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2811 | \n\ | |
2812 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2813 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2814 | Names starting with $ refer to registers (with the values they would have\n\ |
2815 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2816 | all registers saved by frames farther in) or else to debugger\n\ |
2817 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2818 | Use assignment expressions to give values to convenience variables.\n\ |
2819 | \n\ | |
c906108c SS |
2820 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2821 | @ is a binary operator for treating consecutive data objects\n\ | |
2822 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2823 | element is FOO, whose second element is stored in the space following\n\ | |
2824 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2825 | resides in memory.\n\ |
2826 | \n\ | |
c906108c | 2827 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2828 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2829 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2830 | add_com_alias ("p", "print", class_vars, 1); |
2831 | ||
1bedd215 AC |
2832 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2833 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2834 | environment, the value is printed in its own window.")); | |
65d12d83 | 2835 | set_cmd_completer (c, expression_completer); |
c906108c | 2836 | |
35096d9d AC |
2837 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2838 | &max_symbolic_offset, _("\ | |
2839 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2840 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2841 | NULL, | |
920d2a44 | 2842 | show_max_symbolic_offset, |
35096d9d | 2843 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2844 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2845 | &print_symbol_filename, _("\ | |
2846 | Set printing of source filename and line number with <symbol>."), _("\ | |
2847 | Show printing of source filename and line number with <symbol>."), NULL, | |
2848 | NULL, | |
920d2a44 | 2849 | show_print_symbol_filename, |
5bf193a2 | 2850 | &setprintlist, &showprintlist); |
c906108c | 2851 | } |