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 DJ |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
5 | 2008 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" |
c906108c | 46 | |
6a83354a AC |
47 | #ifdef TUI |
48 | #include "tui/tui.h" /* For tui_active et.al. */ | |
49 | #endif | |
50 | ||
09d71d23 AS |
51 | #if defined(__MINGW32__) |
52 | # define USE_PRINTF_I64 1 | |
53 | # define PRINTF_HAS_LONG_LONG | |
54 | #else | |
55 | # define USE_PRINTF_I64 0 | |
56 | #endif | |
57 | ||
c906108c | 58 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ |
c906108c SS |
59 | |
60 | struct format_data | |
c5aa993b JM |
61 | { |
62 | int count; | |
63 | char format; | |
64 | char size; | |
65 | }; | |
c906108c SS |
66 | |
67 | /* Last specified output format. */ | |
68 | ||
69 | static char last_format = 'x'; | |
70 | ||
71 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
72 | ||
73 | static char last_size = 'w'; | |
74 | ||
75 | /* Default address to examine next. */ | |
76 | ||
77 | static CORE_ADDR next_address; | |
78 | ||
a4642986 MR |
79 | /* Number of delay instructions following current disassembled insn. */ |
80 | ||
81 | static int branch_delay_insns; | |
82 | ||
c906108c SS |
83 | /* Last address examined. */ |
84 | ||
85 | static CORE_ADDR last_examine_address; | |
86 | ||
87 | /* Contents of last address examined. | |
88 | This is not valid past the end of the `x' command! */ | |
89 | ||
3d6d86c6 | 90 | static struct value *last_examine_value; |
c906108c SS |
91 | |
92 | /* Largest offset between a symbolic value and an address, that will be | |
93 | printed as `0x1234 <symbol+offset>'. */ | |
94 | ||
95 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
96 | static void |
97 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
98 | struct cmd_list_element *c, const char *value) | |
99 | { | |
100 | fprintf_filtered (file, _("\ | |
101 | The largest offset that will be printed in <symbol+1234> form is %s.\n"), | |
102 | value); | |
103 | } | |
c906108c SS |
104 | |
105 | /* Append the source filename and linenumber of the symbol when | |
106 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
107 | static int print_symbol_filename = 0; | |
920d2a44 AC |
108 | static void |
109 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
110 | struct cmd_list_element *c, const char *value) | |
111 | { | |
112 | fprintf_filtered (file, _("\ | |
113 | Printing of source filename and line number with <symbol> is %s.\n"), | |
114 | value); | |
115 | } | |
c906108c SS |
116 | |
117 | /* Number of auto-display expression currently being displayed. | |
118 | So that we can disable it if we get an error or a signal within it. | |
119 | -1 when not doing one. */ | |
120 | ||
121 | int current_display_number; | |
122 | ||
c906108c | 123 | struct display |
c5aa993b JM |
124 | { |
125 | /* Chain link to next auto-display item. */ | |
126 | struct display *next; | |
127 | /* Expression to be evaluated and displayed. */ | |
128 | struct expression *exp; | |
129 | /* Item number of this auto-display item. */ | |
130 | int number; | |
131 | /* Display format specified. */ | |
132 | struct format_data format; | |
133 | /* Innermost block required by this expression when evaluated */ | |
134 | struct block *block; | |
135 | /* Status of this display (enabled or disabled) */ | |
b5de0fa7 | 136 | int enabled_p; |
c5aa993b | 137 | }; |
c906108c SS |
138 | |
139 | /* Chain of expressions whose values should be displayed | |
140 | automatically each time the program stops. */ | |
141 | ||
142 | static struct display *display_chain; | |
143 | ||
144 | static int display_number; | |
145 | ||
146 | /* Prototypes for exported functions. */ | |
147 | ||
a14ed312 | 148 | void output_command (char *, int); |
c906108c | 149 | |
a14ed312 | 150 | void _initialize_printcmd (void); |
c906108c SS |
151 | |
152 | /* Prototypes for local functions. */ | |
153 | ||
a14ed312 | 154 | static void do_one_display (struct display *); |
c906108c | 155 | \f |
c5aa993b | 156 | |
c906108c SS |
157 | /* Decode a format specification. *STRING_PTR should point to it. |
158 | OFORMAT and OSIZE are used as defaults for the format and size | |
159 | if none are given in the format specification. | |
160 | If OSIZE is zero, then the size field of the returned value | |
161 | should be set only if a size is explicitly specified by the | |
162 | user. | |
163 | The structure returned describes all the data | |
164 | found in the specification. In addition, *STRING_PTR is advanced | |
165 | past the specification and past all whitespace following it. */ | |
166 | ||
167 | static struct format_data | |
fba45db2 | 168 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
169 | { |
170 | struct format_data val; | |
52f0bd74 | 171 | char *p = *string_ptr; |
c906108c SS |
172 | |
173 | val.format = '?'; | |
174 | val.size = '?'; | |
175 | val.count = 1; | |
176 | ||
177 | if (*p >= '0' && *p <= '9') | |
178 | val.count = atoi (p); | |
c5aa993b JM |
179 | while (*p >= '0' && *p <= '9') |
180 | p++; | |
c906108c SS |
181 | |
182 | /* Now process size or format letters that follow. */ | |
183 | ||
184 | while (1) | |
185 | { | |
186 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
187 | val.size = *p++; | |
188 | else if (*p >= 'a' && *p <= 'z') | |
189 | val.format = *p++; | |
190 | else | |
191 | break; | |
192 | } | |
193 | ||
c5aa993b JM |
194 | while (*p == ' ' || *p == '\t') |
195 | p++; | |
c906108c SS |
196 | *string_ptr = p; |
197 | ||
198 | /* Set defaults for format and size if not specified. */ | |
199 | if (val.format == '?') | |
200 | { | |
201 | if (val.size == '?') | |
202 | { | |
203 | /* Neither has been specified. */ | |
204 | val.format = oformat; | |
205 | val.size = osize; | |
206 | } | |
207 | else | |
208 | /* If a size is specified, any format makes a reasonable | |
209 | default except 'i'. */ | |
210 | val.format = oformat == 'i' ? 'x' : oformat; | |
211 | } | |
212 | else if (val.size == '?') | |
213 | switch (val.format) | |
214 | { | |
215 | case 'a': | |
216 | case 's': | |
217 | /* Pick the appropriate size for an address. */ | |
819844ad | 218 | if (gdbarch_ptr_bit (current_gdbarch) == 64) |
c906108c | 219 | val.size = osize ? 'g' : osize; |
819844ad | 220 | else if (gdbarch_ptr_bit (current_gdbarch) == 32) |
c906108c | 221 | val.size = osize ? 'w' : osize; |
819844ad | 222 | else if (gdbarch_ptr_bit (current_gdbarch) == 16) |
c906108c SS |
223 | val.size = osize ? 'h' : osize; |
224 | else | |
819844ad | 225 | /* Bad value for gdbarch_ptr_bit. */ |
675dcf4f MK |
226 | internal_error (__FILE__, __LINE__, |
227 | _("failed internal consistency check")); | |
c906108c SS |
228 | break; |
229 | case 'f': | |
230 | /* Floating point has to be word or giantword. */ | |
231 | if (osize == 'w' || osize == 'g') | |
232 | val.size = osize; | |
233 | else | |
234 | /* Default it to giantword if the last used size is not | |
235 | appropriate. */ | |
236 | val.size = osize ? 'g' : osize; | |
237 | break; | |
238 | case 'c': | |
239 | /* Characters default to one byte. */ | |
240 | val.size = osize ? 'b' : osize; | |
241 | break; | |
242 | default: | |
243 | /* The default is the size most recently specified. */ | |
244 | val.size = osize; | |
245 | } | |
246 | ||
247 | return val; | |
248 | } | |
249 | \f | |
79a45b7d | 250 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 251 | Do not end with a newline. |
c906108c | 252 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
253 | This is used to pad hex numbers so they line up. SIZE is 0 |
254 | for print / output and set for examine. */ | |
c906108c SS |
255 | |
256 | static void | |
79a45b7d TT |
257 | print_formatted (struct value *val, int size, |
258 | const struct value_print_options *options, | |
fba45db2 | 259 | struct ui_file *stream) |
c906108c | 260 | { |
df407dfe | 261 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
262 | int len = TYPE_LENGTH (type); |
263 | ||
264 | if (VALUE_LVAL (val) == lval_memory) | |
675dcf4f | 265 | next_address = VALUE_ADDRESS (val) + len; |
c906108c | 266 | |
ea37ba09 | 267 | if (size) |
c906108c | 268 | { |
79a45b7d | 269 | switch (options->format) |
ea37ba09 DJ |
270 | { |
271 | case 's': | |
272 | /* FIXME: Need to handle wchar_t's here... */ | |
273 | next_address = VALUE_ADDRESS (val) | |
79a45b7d TT |
274 | + val_print_string (VALUE_ADDRESS (val), -1, 1, stream, |
275 | options); | |
ea37ba09 | 276 | return; |
c906108c | 277 | |
ea37ba09 DJ |
278 | case 'i': |
279 | /* We often wrap here if there are long symbolic names. */ | |
280 | wrap_here (" "); | |
281 | next_address = (VALUE_ADDRESS (val) | |
282 | + gdb_print_insn (VALUE_ADDRESS (val), stream, | |
283 | &branch_delay_insns)); | |
284 | return; | |
285 | } | |
c906108c | 286 | } |
ea37ba09 | 287 | |
79a45b7d | 288 | if (options->format == 0 || options->format == 's' |
4e885b20 | 289 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
290 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
291 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
292 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
293 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
294 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 295 | value_print (val, stream, options); |
ea37ba09 DJ |
296 | else |
297 | /* User specified format, so don't look to the the type to | |
298 | tell us what to do. */ | |
299 | print_scalar_formatted (value_contents (val), type, | |
79a45b7d | 300 | options, size, stream); |
c906108c SS |
301 | } |
302 | ||
b806fb9a UW |
303 | /* Return builtin floating point type of same length as TYPE. |
304 | If no such type is found, return TYPE itself. */ | |
305 | static struct type * | |
306 | float_type_from_length (struct gdbarch *gdbarch, struct type *type) | |
307 | { | |
308 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
309 | unsigned int len = TYPE_LENGTH (type); | |
310 | ||
311 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
312 | type = builtin->builtin_float; | |
313 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
314 | type = builtin->builtin_double; | |
315 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
316 | type = builtin->builtin_long_double; | |
317 | ||
318 | return type; | |
319 | } | |
320 | ||
c906108c | 321 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
79a45b7d TT |
322 | according to OPTIONS and SIZE on STREAM. |
323 | Formats s and i are not supported at this level. | |
c906108c SS |
324 | |
325 | This is how the elements of an array or structure are printed | |
326 | with a format. */ | |
327 | ||
328 | void | |
366b1cbf | 329 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
330 | const struct value_print_options *options, |
331 | int size, struct ui_file *stream) | |
c906108c | 332 | { |
81cb7cc9 | 333 | LONGEST val_long = 0; |
c906108c | 334 | unsigned int len = TYPE_LENGTH (type); |
d44e8473 | 335 | enum bfd_endian byte_order = gdbarch_byte_order (current_gdbarch); |
c906108c | 336 | |
ea37ba09 DJ |
337 | /* If we get here with a string format, try again without it. Go |
338 | all the way back to the language printers, which may call us | |
339 | again. */ | |
79a45b7d | 340 | if (options->format == 's') |
ea37ba09 | 341 | { |
79a45b7d TT |
342 | struct value_print_options opts = *options; |
343 | opts.format = 0; | |
344 | opts.deref_ref = 0; | |
345 | val_print (type, valaddr, 0, 0, stream, 0, &opts, | |
d8ca156b | 346 | current_language); |
ea37ba09 DJ |
347 | return; |
348 | } | |
349 | ||
6b9acc27 JJ |
350 | if (len > sizeof(LONGEST) && |
351 | (TYPE_CODE (type) == TYPE_CODE_INT | |
352 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
353 | { | |
79a45b7d | 354 | switch (options->format) |
6b9acc27 JJ |
355 | { |
356 | case 'o': | |
d44e8473 | 357 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
358 | return; |
359 | case 'u': | |
360 | case 'd': | |
d44e8473 | 361 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
362 | return; |
363 | case 't': | |
d44e8473 | 364 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
365 | return; |
366 | case 'x': | |
d44e8473 | 367 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
368 | return; |
369 | case 'c': | |
d44e8473 | 370 | print_char_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
371 | return; |
372 | default: | |
373 | break; | |
374 | }; | |
375 | } | |
376 | ||
79a45b7d | 377 | if (options->format != 'f') |
c906108c SS |
378 | val_long = unpack_long (type, valaddr); |
379 | ||
ef166cf4 | 380 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 381 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 382 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 383 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
17a912b6 | 384 | len = gdbarch_addr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 385 | |
c906108c SS |
386 | /* If we are printing it as unsigned, truncate it in case it is actually |
387 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
388 | (if shorts are 16 bits) instead of 4294967295). */ | |
79a45b7d | 389 | if (options->format != 'd') |
c906108c SS |
390 | { |
391 | if (len < sizeof (LONGEST)) | |
392 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
393 | } | |
394 | ||
79a45b7d | 395 | switch (options->format) |
c906108c SS |
396 | { |
397 | case 'x': | |
398 | if (!size) | |
399 | { | |
675dcf4f | 400 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
401 | print_longest (stream, 'x', 1, val_long); |
402 | } | |
403 | else | |
404 | switch (size) | |
405 | { | |
406 | case 'b': | |
407 | case 'h': | |
408 | case 'w': | |
409 | case 'g': | |
410 | print_longest (stream, size, 1, val_long); | |
411 | break; | |
412 | default: | |
8a3fe4f8 | 413 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
414 | } |
415 | break; | |
416 | ||
417 | case 'd': | |
418 | print_longest (stream, 'd', 1, val_long); | |
419 | break; | |
420 | ||
421 | case 'u': | |
422 | print_longest (stream, 'u', 0, val_long); | |
423 | break; | |
424 | ||
425 | case 'o': | |
426 | if (val_long) | |
427 | print_longest (stream, 'o', 1, val_long); | |
428 | else | |
429 | fprintf_filtered (stream, "0"); | |
430 | break; | |
431 | ||
432 | case 'a': | |
593de6a6 | 433 | { |
593de6a6 | 434 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
593de6a6 PS |
435 | print_address (addr, stream); |
436 | } | |
c906108c SS |
437 | break; |
438 | ||
439 | case 'c': | |
79a45b7d TT |
440 | { |
441 | struct value_print_options opts = *options; | |
442 | opts.format = 0; | |
443 | if (TYPE_UNSIGNED (type)) | |
444 | value_print (value_from_longest (builtin_type_true_unsigned_char, | |
445 | val_long), | |
446 | stream, &opts); | |
447 | else | |
448 | value_print (value_from_longest (builtin_type_true_char, val_long), | |
449 | stream, &opts); | |
450 | } | |
c906108c SS |
451 | break; |
452 | ||
453 | case 'f': | |
b806fb9a | 454 | type = float_type_from_length (current_gdbarch, type); |
c906108c SS |
455 | print_floating (valaddr, type, stream); |
456 | break; | |
457 | ||
458 | case 0: | |
675dcf4f MK |
459 | internal_error (__FILE__, __LINE__, |
460 | _("failed internal consistency check")); | |
c906108c SS |
461 | |
462 | case 't': | |
463 | /* Binary; 't' stands for "two". */ | |
464 | { | |
c5aa993b JM |
465 | char bits[8 * (sizeof val_long) + 1]; |
466 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
467 | char *cp = bits; |
468 | int width; | |
469 | ||
c5aa993b JM |
470 | if (!size) |
471 | width = 8 * (sizeof val_long); | |
472 | else | |
473 | switch (size) | |
c906108c SS |
474 | { |
475 | case 'b': | |
476 | width = 8; | |
477 | break; | |
478 | case 'h': | |
479 | width = 16; | |
480 | break; | |
481 | case 'w': | |
482 | width = 32; | |
483 | break; | |
484 | case 'g': | |
485 | width = 64; | |
486 | break; | |
487 | default: | |
8a3fe4f8 | 488 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
489 | } |
490 | ||
c5aa993b JM |
491 | bits[width] = '\0'; |
492 | while (width-- > 0) | |
493 | { | |
494 | bits[width] = (val_long & 1) ? '1' : '0'; | |
495 | val_long >>= 1; | |
496 | } | |
c906108c SS |
497 | if (!size) |
498 | { | |
499 | while (*cp && *cp == '0') | |
500 | cp++; | |
501 | if (*cp == '\0') | |
502 | cp--; | |
503 | } | |
bb599908 | 504 | strcpy (buf, cp); |
306d9ac5 | 505 | fputs_filtered (buf, stream); |
c906108c SS |
506 | } |
507 | break; | |
508 | ||
509 | default: | |
79a45b7d | 510 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
511 | } |
512 | } | |
513 | ||
514 | /* Specify default address for `x' command. | |
675dcf4f | 515 | The `info lines' command uses this. */ |
c906108c SS |
516 | |
517 | void | |
8b9b9e1a | 518 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 519 | { |
8b9b9e1a UW |
520 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
521 | ||
c906108c SS |
522 | next_address = addr; |
523 | ||
524 | /* Make address available to the user as $_. */ | |
525 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 526 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
527 | } |
528 | ||
529 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
530 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
531 | Optionally also print source file and line number, if available. | |
532 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
533 | or to interpret it as a possible C++ name and convert it back to source | |
534 | form. However note that DO_DEMANGLE can be overridden by the specific | |
535 | settings of the demangle and asm_demangle variables. */ | |
536 | ||
537 | void | |
675dcf4f MK |
538 | print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, |
539 | int do_demangle, char *leadin) | |
dfcd3bfb JM |
540 | { |
541 | char *name = NULL; | |
542 | char *filename = NULL; | |
543 | int unmapped = 0; | |
544 | int offset = 0; | |
545 | int line = 0; | |
546 | ||
675dcf4f | 547 | /* Throw away both name and filename. */ |
2f9429ae AC |
548 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
549 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 550 | |
675dcf4f MK |
551 | if (build_address_symbolic (addr, do_demangle, &name, &offset, |
552 | &filename, &line, &unmapped)) | |
2f9429ae AC |
553 | { |
554 | do_cleanups (cleanup_chain); | |
555 | return; | |
556 | } | |
dfcd3bfb JM |
557 | |
558 | fputs_filtered (leadin, stream); | |
559 | if (unmapped) | |
560 | fputs_filtered ("<*", stream); | |
561 | else | |
562 | fputs_filtered ("<", stream); | |
563 | fputs_filtered (name, stream); | |
564 | if (offset != 0) | |
565 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
566 | ||
567 | /* Append source filename and line number if desired. Give specific | |
568 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
569 | if (print_symbol_filename && filename != NULL) | |
570 | { | |
571 | if (line != -1) | |
572 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
573 | else | |
574 | fprintf_filtered (stream, " in %s", filename); | |
575 | } | |
576 | if (unmapped) | |
577 | fputs_filtered ("*>", stream); | |
578 | else | |
579 | fputs_filtered (">", stream); | |
580 | ||
581 | do_cleanups (cleanup_chain); | |
582 | } | |
583 | ||
584 | /* Given an address ADDR return all the elements needed to print the | |
585 | address in a symbolic form. NAME can be mangled or not depending | |
586 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
587 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
588 | success, when all the info in the OUT paramters is valid. Return 1 | |
589 | otherwise. */ | |
590 | int | |
591 | build_address_symbolic (CORE_ADDR addr, /* IN */ | |
592 | int do_demangle, /* IN */ | |
593 | char **name, /* OUT */ | |
594 | int *offset, /* OUT */ | |
595 | char **filename, /* OUT */ | |
596 | int *line, /* OUT */ | |
597 | int *unmapped) /* OUT */ | |
c906108c SS |
598 | { |
599 | struct minimal_symbol *msymbol; | |
600 | struct symbol *symbol; | |
c906108c | 601 | CORE_ADDR name_location = 0; |
714835d5 | 602 | struct obj_section *section = NULL; |
dfcd3bfb JM |
603 | char *name_temp = ""; |
604 | ||
675dcf4f | 605 | /* Let's say it is unmapped. */ |
dfcd3bfb | 606 | *unmapped = 0; |
c906108c | 607 | |
dfcd3bfb | 608 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 609 | mapped. */ |
c906108c SS |
610 | if (overlay_debugging) |
611 | { | |
612 | section = find_pc_overlay (addr); | |
613 | if (pc_in_unmapped_range (addr, section)) | |
614 | { | |
dfcd3bfb | 615 | *unmapped = 1; |
c906108c SS |
616 | addr = overlay_mapped_address (addr, section); |
617 | } | |
618 | } | |
619 | ||
c906108c SS |
620 | /* First try to find the address in the symbol table, then |
621 | in the minsyms. Take the closest one. */ | |
622 | ||
623 | /* This is defective in the sense that it only finds text symbols. So | |
624 | really this is kind of pointless--we should make sure that the | |
625 | minimal symbols have everything we need (by changing that we could | |
626 | save some memory, but for many debug format--ELF/DWARF or | |
627 | anything/stabs--it would be inconvenient to eliminate those minimal | |
628 | symbols anyway). */ | |
629 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
630 | symbol = find_pc_sect_function (addr, section); | |
631 | ||
632 | if (symbol) | |
633 | { | |
634 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
406fc7fb | 635 | if (do_demangle || asm_demangle) |
de5ad195 | 636 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 637 | else |
3567439c | 638 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
639 | } |
640 | ||
641 | if (msymbol != NULL) | |
642 | { | |
643 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
644 | { | |
645 | /* The msymbol is closer to the address than the symbol; | |
646 | use the msymbol instead. */ | |
647 | symbol = 0; | |
c906108c | 648 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 649 | if (do_demangle || asm_demangle) |
de5ad195 | 650 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 651 | else |
3567439c | 652 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
653 | } |
654 | } | |
655 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 656 | return 1; |
c906108c | 657 | |
c906108c SS |
658 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
659 | ||
660 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
661 | CORE_ADDR. But when we detect unsigned wraparound in the | |
662 | CORE_ADDR math, we ignore this test and print the offset, | |
663 | because addr+max_symbolic_offset has wrapped through the end | |
664 | of the address space back to the beginning, giving bogus comparison. */ | |
665 | if (addr > name_location + max_symbolic_offset | |
666 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 667 | return 1; |
c906108c | 668 | |
dfcd3bfb JM |
669 | *offset = addr - name_location; |
670 | ||
671 | *name = xstrdup (name_temp); | |
c906108c | 672 | |
c906108c SS |
673 | if (print_symbol_filename) |
674 | { | |
675 | struct symtab_and_line sal; | |
676 | ||
677 | sal = find_pc_sect_line (addr, section, 0); | |
678 | ||
679 | if (sal.symtab) | |
dfcd3bfb JM |
680 | { |
681 | *filename = xstrdup (sal.symtab->filename); | |
682 | *line = sal.line; | |
683 | } | |
c906108c | 684 | } |
dfcd3bfb | 685 | return 0; |
c906108c SS |
686 | } |
687 | ||
c906108c SS |
688 | |
689 | /* Print address ADDR symbolically on STREAM. | |
690 | First print it as a number. Then perhaps print | |
691 | <SYMBOL + OFFSET> after the number. */ | |
692 | ||
693 | void | |
fba45db2 | 694 | print_address (CORE_ADDR addr, struct ui_file *stream) |
c906108c | 695 | { |
ed49a04f | 696 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
697 | print_address_symbolic (addr, stream, asm_demangle, " "); |
698 | } | |
699 | ||
700 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
701 | controls whether to print the symbolic name "raw" or demangled. | |
702 | Global setting "addressprint" controls whether to print hex address | |
703 | or not. */ | |
704 | ||
705 | void | |
675dcf4f MK |
706 | print_address_demangle (CORE_ADDR addr, struct ui_file *stream, |
707 | int do_demangle) | |
c906108c | 708 | { |
79a45b7d TT |
709 | struct value_print_options opts; |
710 | get_user_print_options (&opts); | |
c906108c SS |
711 | if (addr == 0) |
712 | { | |
713 | fprintf_filtered (stream, "0"); | |
714 | } | |
79a45b7d | 715 | else if (opts.addressprint) |
c906108c | 716 | { |
ed49a04f | 717 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
718 | print_address_symbolic (addr, stream, do_demangle, " "); |
719 | } | |
720 | else | |
721 | { | |
722 | print_address_symbolic (addr, stream, do_demangle, ""); | |
723 | } | |
724 | } | |
725 | \f | |
726 | ||
727 | /* These are the types that $__ will get after an examine command of one | |
728 | of these sizes. */ | |
729 | ||
730 | static struct type *examine_i_type; | |
731 | ||
732 | static struct type *examine_b_type; | |
733 | static struct type *examine_h_type; | |
734 | static struct type *examine_w_type; | |
735 | static struct type *examine_g_type; | |
736 | ||
737 | /* Examine data at address ADDR in format FMT. | |
738 | Fetch it from memory and print on gdb_stdout. */ | |
739 | ||
740 | static void | |
00a4c844 | 741 | do_examine (struct format_data fmt, CORE_ADDR addr) |
c906108c | 742 | { |
52f0bd74 AC |
743 | char format = 0; |
744 | char size; | |
745 | int count = 1; | |
c906108c | 746 | struct type *val_type = NULL; |
52f0bd74 AC |
747 | int i; |
748 | int maxelts; | |
79a45b7d | 749 | struct value_print_options opts; |
c906108c SS |
750 | |
751 | format = fmt.format; | |
752 | size = fmt.size; | |
753 | count = fmt.count; | |
754 | next_address = addr; | |
c906108c SS |
755 | |
756 | /* String or instruction format implies fetch single bytes | |
757 | regardless of the specified size. */ | |
758 | if (format == 's' || format == 'i') | |
759 | size = 'b'; | |
760 | ||
761 | if (format == 'i') | |
762 | val_type = examine_i_type; | |
763 | else if (size == 'b') | |
764 | val_type = examine_b_type; | |
765 | else if (size == 'h') | |
766 | val_type = examine_h_type; | |
767 | else if (size == 'w') | |
768 | val_type = examine_w_type; | |
769 | else if (size == 'g') | |
770 | val_type = examine_g_type; | |
771 | ||
772 | maxelts = 8; | |
773 | if (size == 'w') | |
774 | maxelts = 4; | |
775 | if (size == 'g') | |
776 | maxelts = 2; | |
777 | if (format == 's' || format == 'i') | |
778 | maxelts = 1; | |
779 | ||
79a45b7d TT |
780 | get_formatted_print_options (&opts, format); |
781 | ||
c906108c SS |
782 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
783 | with the address of the next one at the start of each line. */ | |
784 | ||
785 | while (count > 0) | |
786 | { | |
787 | QUIT; | |
788 | print_address (next_address, gdb_stdout); | |
789 | printf_filtered (":"); | |
790 | for (i = maxelts; | |
791 | i > 0 && count > 0; | |
792 | i--, count--) | |
793 | { | |
794 | printf_filtered ("\t"); | |
795 | /* Note that print_formatted sets next_address for the next | |
796 | object. */ | |
797 | last_examine_address = next_address; | |
798 | ||
799 | if (last_examine_value) | |
800 | value_free (last_examine_value); | |
801 | ||
802 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
803 | Instead, to avoid the possibility of a fetched value not |
804 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
805 | uses it. When examining an instruction stream, the |
806 | disassembler will perform its own memory fetch using just | |
807 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
808 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
809 | is left with the byte sequence from the last complete | |
810 | instruction fetched from memory? */ | |
00a4c844 | 811 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
812 | |
813 | if (last_examine_value) | |
814 | release_value (last_examine_value); | |
815 | ||
79a45b7d | 816 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
817 | |
818 | /* Display any branch delay slots following the final insn. */ | |
819 | if (format == 'i' && count == 1) | |
820 | count += branch_delay_insns; | |
c906108c SS |
821 | } |
822 | printf_filtered ("\n"); | |
823 | gdb_flush (gdb_stdout); | |
824 | } | |
825 | } | |
826 | \f | |
827 | static void | |
fba45db2 | 828 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
829 | { |
830 | if (fmt.size != 0) | |
8a3fe4f8 | 831 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 832 | if (fmt.count != 1) |
8a3fe4f8 | 833 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 834 | cmdname); |
ea37ba09 | 835 | if (fmt.format == 'i') |
8a3fe4f8 | 836 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
837 | fmt.format, cmdname); |
838 | } | |
839 | ||
675dcf4f | 840 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 841 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 842 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
843 | |
844 | static void | |
fba45db2 | 845 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
846 | { |
847 | struct expression *expr; | |
52f0bd74 AC |
848 | struct cleanup *old_chain = 0; |
849 | char format = 0; | |
3d6d86c6 | 850 | struct value *val; |
c906108c SS |
851 | struct format_data fmt; |
852 | int cleanup = 0; | |
853 | ||
c906108c SS |
854 | if (exp && *exp == '/') |
855 | { | |
856 | exp++; | |
857 | fmt = decode_format (&exp, last_format, 0); | |
858 | validate_format (fmt, "print"); | |
859 | last_format = format = fmt.format; | |
860 | } | |
861 | else | |
862 | { | |
863 | fmt.count = 1; | |
864 | fmt.format = 0; | |
865 | fmt.size = 0; | |
866 | } | |
867 | ||
868 | if (exp && *exp) | |
869 | { | |
c906108c SS |
870 | struct type *type; |
871 | expr = parse_expression (exp); | |
c13c43fd | 872 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
873 | cleanup = 1; |
874 | val = evaluate_expression (expr); | |
c906108c SS |
875 | } |
876 | else | |
877 | val = access_value_history (0); | |
878 | ||
df407dfe AC |
879 | if (voidprint || (val && value_type (val) && |
880 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 881 | { |
79a45b7d | 882 | struct value_print_options opts; |
c906108c SS |
883 | int histindex = record_latest_value (val); |
884 | ||
885 | if (histindex >= 0) | |
df407dfe | 886 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 887 | else |
df407dfe | 888 | annotate_value_begin (value_type (val)); |
c906108c SS |
889 | |
890 | if (inspect) | |
675dcf4f MK |
891 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
892 | exp, histindex); | |
c5aa993b JM |
893 | else if (histindex >= 0) |
894 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
895 | |
896 | if (histindex >= 0) | |
897 | annotate_value_history_value (); | |
898 | ||
79a45b7d TT |
899 | get_formatted_print_options (&opts, format); |
900 | opts.inspect_it = inspect; | |
901 | ||
902 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
903 | printf_filtered ("\n"); |
904 | ||
905 | if (histindex >= 0) | |
906 | annotate_value_history_end (); | |
907 | else | |
908 | annotate_value_end (); | |
909 | ||
910 | if (inspect) | |
c5aa993b | 911 | printf_unfiltered ("\") )\030"); |
c906108c SS |
912 | } |
913 | ||
914 | if (cleanup) | |
915 | do_cleanups (old_chain); | |
c906108c SS |
916 | } |
917 | ||
c906108c | 918 | static void |
fba45db2 | 919 | print_command (char *exp, int from_tty) |
c906108c SS |
920 | { |
921 | print_command_1 (exp, 0, 1); | |
922 | } | |
923 | ||
675dcf4f | 924 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 925 | static void |
fba45db2 | 926 | inspect_command (char *exp, int from_tty) |
c906108c SS |
927 | { |
928 | extern int epoch_interface; | |
929 | ||
930 | print_command_1 (exp, epoch_interface, 1); | |
931 | } | |
932 | ||
675dcf4f | 933 | /* Same as print, except it doesn't print void results. */ |
c906108c | 934 | static void |
fba45db2 | 935 | call_command (char *exp, int from_tty) |
c906108c SS |
936 | { |
937 | print_command_1 (exp, 0, 0); | |
938 | } | |
939 | ||
c906108c | 940 | void |
fba45db2 | 941 | output_command (char *exp, int from_tty) |
c906108c SS |
942 | { |
943 | struct expression *expr; | |
52f0bd74 AC |
944 | struct cleanup *old_chain; |
945 | char format = 0; | |
3d6d86c6 | 946 | struct value *val; |
c906108c | 947 | struct format_data fmt; |
79a45b7d | 948 | struct value_print_options opts; |
c906108c | 949 | |
777ea8f1 DJ |
950 | fmt.size = 0; |
951 | ||
c906108c SS |
952 | if (exp && *exp == '/') |
953 | { | |
954 | exp++; | |
955 | fmt = decode_format (&exp, 0, 0); | |
956 | validate_format (fmt, "output"); | |
957 | format = fmt.format; | |
958 | } | |
959 | ||
960 | expr = parse_expression (exp); | |
c13c43fd | 961 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
962 | |
963 | val = evaluate_expression (expr); | |
964 | ||
df407dfe | 965 | annotate_value_begin (value_type (val)); |
c906108c | 966 | |
79a45b7d TT |
967 | get_formatted_print_options (&opts, format); |
968 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
969 | |
970 | annotate_value_end (); | |
971 | ||
2acceee2 JM |
972 | wrap_here (""); |
973 | gdb_flush (gdb_stdout); | |
974 | ||
c906108c SS |
975 | do_cleanups (old_chain); |
976 | } | |
977 | ||
c906108c | 978 | static void |
fba45db2 | 979 | set_command (char *exp, int from_tty) |
c906108c SS |
980 | { |
981 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 982 | struct cleanup *old_chain = |
c13c43fd | 983 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
984 | evaluate_expression (expr); |
985 | do_cleanups (old_chain); | |
986 | } | |
987 | ||
c906108c | 988 | static void |
fba45db2 | 989 | sym_info (char *arg, int from_tty) |
c906108c SS |
990 | { |
991 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
992 | struct objfile *objfile; |
993 | struct obj_section *osect; | |
c5aa993b JM |
994 | CORE_ADDR addr, sect_addr; |
995 | int matches = 0; | |
996 | unsigned int offset; | |
c906108c SS |
997 | |
998 | if (!arg) | |
e2e0b3e5 | 999 | error_no_arg (_("address")); |
c906108c SS |
1000 | |
1001 | addr = parse_and_eval_address (arg); | |
1002 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1003 | { |
94277a38 DJ |
1004 | /* Only process each object file once, even if there's a separate |
1005 | debug file. */ | |
1006 | if (objfile->separate_debug_objfile_backlink) | |
1007 | continue; | |
1008 | ||
714835d5 | 1009 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1010 | |
f1f6aadf PA |
1011 | if (obj_section_addr (osect) <= sect_addr |
1012 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1013 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b JM |
1014 | { |
1015 | matches = 1; | |
1016 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
1017 | if (offset) | |
1018 | printf_filtered ("%s + %u in ", | |
de5ad195 | 1019 | SYMBOL_PRINT_NAME (msymbol), offset); |
c5aa993b JM |
1020 | else |
1021 | printf_filtered ("%s in ", | |
de5ad195 | 1022 | SYMBOL_PRINT_NAME (msymbol)); |
714835d5 | 1023 | if (pc_in_unmapped_range (addr, osect)) |
a3f17187 | 1024 | printf_filtered (_("load address range of ")); |
714835d5 | 1025 | if (section_is_overlay (osect)) |
a3f17187 | 1026 | printf_filtered (_("%s overlay "), |
714835d5 UW |
1027 | section_is_mapped (osect) ? "mapped" : "unmapped"); |
1028 | printf_filtered (_("section %s"), osect->the_bfd_section->name); | |
c5aa993b JM |
1029 | printf_filtered ("\n"); |
1030 | } | |
1031 | } | |
c906108c | 1032 | if (matches == 0) |
a3f17187 | 1033 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1034 | } |
1035 | ||
c906108c | 1036 | static void |
fba45db2 | 1037 | address_info (char *exp, int from_tty) |
c906108c | 1038 | { |
52f0bd74 AC |
1039 | struct symbol *sym; |
1040 | struct minimal_symbol *msymbol; | |
1041 | long val; | |
714835d5 | 1042 | struct obj_section *section; |
c906108c SS |
1043 | CORE_ADDR load_addr; |
1044 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1045 | if exp is a field of `this'. */ | |
1046 | ||
1047 | if (exp == 0) | |
8a3fe4f8 | 1048 | error (_("Argument required.")); |
c906108c | 1049 | |
176620f1 | 1050 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
2570f2b7 | 1051 | &is_a_field_of_this); |
c906108c SS |
1052 | if (sym == NULL) |
1053 | { | |
1054 | if (is_a_field_of_this) | |
1055 | { | |
1056 | printf_filtered ("Symbol \""); | |
1057 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1058 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1059 | printf_filtered ("\" is a field of the local class variable "); |
1060 | if (current_language->la_language == language_objc) | |
2625d86c | 1061 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1062 | else |
2625d86c | 1063 | printf_filtered ("`this'\n"); |
c906108c SS |
1064 | return; |
1065 | } | |
1066 | ||
1067 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1068 | ||
1069 | if (msymbol != NULL) | |
1070 | { | |
1071 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1072 | ||
1073 | printf_filtered ("Symbol \""); | |
1074 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1075 | current_language->la_language, DMGL_ANSI); | |
1076 | printf_filtered ("\" is at "); | |
ed49a04f | 1077 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c | 1078 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1079 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1080 | if (section_is_overlay (section)) |
1081 | { | |
1082 | load_addr = overlay_unmapped_address (load_addr, section); | |
1083 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1084 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1085 | printf_filtered (" in overlay section %s", |
1086 | section->the_bfd_section->name); | |
c906108c SS |
1087 | } |
1088 | printf_filtered (".\n"); | |
1089 | } | |
1090 | else | |
8a3fe4f8 | 1091 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1092 | return; |
1093 | } | |
1094 | ||
1095 | printf_filtered ("Symbol \""); | |
3567439c | 1096 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1097 | current_language->la_language, DMGL_ANSI); |
1098 | printf_filtered ("\" is "); | |
c5aa993b | 1099 | val = SYMBOL_VALUE (sym); |
714835d5 | 1100 | section = SYMBOL_OBJ_SECTION (sym); |
c906108c SS |
1101 | |
1102 | switch (SYMBOL_CLASS (sym)) | |
1103 | { | |
1104 | case LOC_CONST: | |
1105 | case LOC_CONST_BYTES: | |
1106 | printf_filtered ("constant"); | |
1107 | break; | |
1108 | ||
1109 | case LOC_LABEL: | |
1110 | printf_filtered ("a label at address "); | |
ed49a04f MD |
1111 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1112 | gdb_stdout); | |
c906108c SS |
1113 | if (section_is_overlay (section)) |
1114 | { | |
1115 | load_addr = overlay_unmapped_address (load_addr, section); | |
1116 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1117 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1118 | printf_filtered (" in overlay section %s", |
1119 | section->the_bfd_section->name); | |
c906108c SS |
1120 | } |
1121 | break; | |
1122 | ||
4c2df51b | 1123 | case LOC_COMPUTED: |
a67af2b9 AC |
1124 | /* FIXME: cagney/2004-01-26: It should be possible to |
1125 | unconditionally call the SYMBOL_OPS method when available. | |
d3efc286 | 1126 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1127 | function) location in a function's symbol. Oops! For the |
1128 | moment enable this when/where applicable. */ | |
1129 | SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout); | |
4c2df51b DJ |
1130 | break; |
1131 | ||
c906108c | 1132 | case LOC_REGISTER: |
2a2d4dc3 AS |
1133 | if (SYMBOL_IS_ARGUMENT (sym)) |
1134 | printf_filtered (_("an argument in register %s"), | |
1135 | gdbarch_register_name (current_gdbarch, val)); | |
1136 | else | |
1137 | printf_filtered (_("a variable in register %s"), | |
c9f4d572 | 1138 | gdbarch_register_name (current_gdbarch, val)); |
c906108c SS |
1139 | break; |
1140 | ||
1141 | case LOC_STATIC: | |
a3f17187 | 1142 | printf_filtered (_("static storage at address ")); |
ed49a04f MD |
1143 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1144 | gdb_stdout); | |
c906108c SS |
1145 | if (section_is_overlay (section)) |
1146 | { | |
1147 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1148 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1149 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1150 | printf_filtered (_(" in overlay section %s"), |
1151 | section->the_bfd_section->name); | |
c906108c SS |
1152 | } |
1153 | break; | |
1154 | ||
c906108c | 1155 | case LOC_REGPARM_ADDR: |
675dcf4f | 1156 | printf_filtered (_("address of an argument in register %s"), |
c9f4d572 | 1157 | gdbarch_register_name (current_gdbarch, val)); |
c906108c SS |
1158 | break; |
1159 | ||
1160 | case LOC_ARG: | |
a3f17187 | 1161 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1162 | break; |
1163 | ||
c906108c | 1164 | case LOC_LOCAL: |
a3f17187 | 1165 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1166 | break; |
1167 | ||
1168 | case LOC_REF_ARG: | |
a3f17187 | 1169 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1170 | break; |
1171 | ||
c906108c | 1172 | case LOC_TYPEDEF: |
a3f17187 | 1173 | printf_filtered (_("a typedef")); |
c906108c SS |
1174 | break; |
1175 | ||
1176 | case LOC_BLOCK: | |
a3f17187 | 1177 | printf_filtered (_("a function at address ")); |
675dcf4f | 1178 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
ed49a04f | 1179 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1180 | if (section_is_overlay (section)) |
1181 | { | |
1182 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1183 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1184 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1185 | printf_filtered (_(" in overlay section %s"), |
1186 | section->the_bfd_section->name); | |
c906108c SS |
1187 | } |
1188 | break; | |
1189 | ||
1190 | case LOC_UNRESOLVED: | |
1191 | { | |
1192 | struct minimal_symbol *msym; | |
1193 | ||
3567439c | 1194 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1195 | if (msym == NULL) |
1196 | printf_filtered ("unresolved"); | |
1197 | else | |
1198 | { | |
714835d5 | 1199 | section = SYMBOL_OBJ_SECTION (msym); |
a3f17187 | 1200 | printf_filtered (_("static storage at address ")); |
675dcf4f | 1201 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
ed49a04f | 1202 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1203 | if (section_is_overlay (section)) |
1204 | { | |
1205 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1206 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1207 | fputs_filtered (paddress (load_addr), gdb_stdout); |
714835d5 UW |
1208 | printf_filtered (_(" in overlay section %s"), |
1209 | section->the_bfd_section->name); | |
c906108c SS |
1210 | } |
1211 | } | |
1212 | } | |
1213 | break; | |
1214 | ||
c906108c | 1215 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1216 | printf_filtered (_("optimized out")); |
c906108c | 1217 | break; |
c5aa993b | 1218 | |
c906108c | 1219 | default: |
a3f17187 | 1220 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1221 | break; |
1222 | } | |
1223 | printf_filtered (".\n"); | |
1224 | } | |
1225 | \f | |
675dcf4f MK |
1226 | |
1227 | static void | |
fba45db2 | 1228 | x_command (char *exp, int from_tty) |
c906108c SS |
1229 | { |
1230 | struct expression *expr; | |
1231 | struct format_data fmt; | |
1232 | struct cleanup *old_chain; | |
1233 | struct value *val; | |
1234 | ||
1235 | fmt.format = last_format; | |
1236 | fmt.size = last_size; | |
1237 | fmt.count = 1; | |
1238 | ||
1239 | if (exp && *exp == '/') | |
1240 | { | |
1241 | exp++; | |
1242 | fmt = decode_format (&exp, last_format, last_size); | |
1243 | } | |
1244 | ||
1245 | /* If we have an expression, evaluate it and use it as the address. */ | |
1246 | ||
1247 | if (exp != 0 && *exp != 0) | |
1248 | { | |
1249 | expr = parse_expression (exp); | |
675dcf4f MK |
1250 | /* Cause expression not to be there any more if this command is |
1251 | repeated with Newline. But don't clobber a user-defined | |
1252 | command's definition. */ | |
c906108c SS |
1253 | if (from_tty) |
1254 | *exp = 0; | |
c13c43fd | 1255 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1256 | val = evaluate_expression (expr); |
df407dfe | 1257 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1258 | val = value_ind (val); |
1259 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1260 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1261 | if (/* last_format == 'i' && */ |
df407dfe | 1262 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1263 | && VALUE_LVAL (val) == lval_memory) |
c906108c SS |
1264 | next_address = VALUE_ADDRESS (val); |
1265 | else | |
1aa20aa8 | 1266 | next_address = value_as_address (val); |
c906108c SS |
1267 | do_cleanups (old_chain); |
1268 | } | |
1269 | ||
00a4c844 | 1270 | do_examine (fmt, next_address); |
c906108c | 1271 | |
675dcf4f MK |
1272 | /* If the examine succeeds, we remember its size and format for next |
1273 | time. */ | |
c906108c SS |
1274 | last_size = fmt.size; |
1275 | last_format = fmt.format; | |
1276 | ||
1277 | /* Set a couple of internal variables if appropriate. */ | |
1278 | if (last_examine_value) | |
1279 | { | |
1280 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1281 | the correct pointer type. */ |
4478b372 | 1282 | struct type *pointer_type |
df407dfe | 1283 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1284 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1285 | value_from_pointer (pointer_type, |
1286 | last_examine_address)); | |
c5aa993b | 1287 | |
675dcf4f MK |
1288 | /* Make contents of last address examined available to the user |
1289 | as $__. If the last value has not been fetched from memory | |
1290 | then don't fetch it now; instead mark it by voiding the $__ | |
1291 | variable. */ | |
d69fe07e | 1292 | if (value_lazy (last_examine_value)) |
c906108c SS |
1293 | set_internalvar (lookup_internalvar ("__"), |
1294 | allocate_value (builtin_type_void)); | |
1295 | else | |
1296 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1297 | } | |
1298 | } | |
c906108c | 1299 | \f |
c5aa993b | 1300 | |
c906108c SS |
1301 | /* Add an expression to the auto-display chain. |
1302 | Specify the expression. */ | |
1303 | ||
1304 | static void | |
fba45db2 | 1305 | display_command (char *exp, int from_tty) |
c906108c SS |
1306 | { |
1307 | struct format_data fmt; | |
52f0bd74 AC |
1308 | struct expression *expr; |
1309 | struct display *new; | |
c906108c SS |
1310 | int display_it = 1; |
1311 | ||
1312 | #if defined(TUI) | |
021e7609 AC |
1313 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1314 | `tui_version'. */ | |
fd33e6cb | 1315 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1316 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1317 | #endif |
1318 | ||
1319 | if (display_it) | |
1320 | { | |
1321 | if (exp == 0) | |
1322 | { | |
1323 | do_displays (); | |
1324 | return; | |
1325 | } | |
1326 | ||
1327 | if (*exp == '/') | |
1328 | { | |
1329 | exp++; | |
1330 | fmt = decode_format (&exp, 0, 0); | |
1331 | if (fmt.size && fmt.format == 0) | |
1332 | fmt.format = 'x'; | |
1333 | if (fmt.format == 'i' || fmt.format == 's') | |
1334 | fmt.size = 'b'; | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | fmt.format = 0; | |
1339 | fmt.size = 0; | |
1340 | fmt.count = 0; | |
1341 | } | |
1342 | ||
1343 | innermost_block = 0; | |
1344 | expr = parse_expression (exp); | |
1345 | ||
1346 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1347 | ||
1348 | new->exp = expr; | |
1349 | new->block = innermost_block; | |
1350 | new->next = display_chain; | |
1351 | new->number = ++display_number; | |
1352 | new->format = fmt; | |
b5de0fa7 | 1353 | new->enabled_p = 1; |
c906108c SS |
1354 | display_chain = new; |
1355 | ||
1356 | if (from_tty && target_has_execution) | |
1357 | do_one_display (new); | |
1358 | ||
1359 | dont_repeat (); | |
1360 | } | |
1361 | } | |
1362 | ||
1363 | static void | |
fba45db2 | 1364 | free_display (struct display *d) |
c906108c | 1365 | { |
b8c9b27d KB |
1366 | xfree (d->exp); |
1367 | xfree (d); | |
c906108c SS |
1368 | } |
1369 | ||
675dcf4f MK |
1370 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1371 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1372 | |
1373 | void | |
fba45db2 | 1374 | clear_displays (void) |
c906108c | 1375 | { |
52f0bd74 | 1376 | struct display *d; |
c906108c SS |
1377 | |
1378 | while ((d = display_chain) != NULL) | |
1379 | { | |
b8c9b27d | 1380 | xfree (d->exp); |
c906108c | 1381 | display_chain = d->next; |
b8c9b27d | 1382 | xfree (d); |
c906108c SS |
1383 | } |
1384 | } | |
1385 | ||
1386 | /* Delete the auto-display number NUM. */ | |
1387 | ||
1388 | static void | |
fba45db2 | 1389 | delete_display (int num) |
c906108c | 1390 | { |
52f0bd74 | 1391 | struct display *d1, *d; |
c906108c SS |
1392 | |
1393 | if (!display_chain) | |
8a3fe4f8 | 1394 | error (_("No display number %d."), num); |
c906108c SS |
1395 | |
1396 | if (display_chain->number == num) | |
1397 | { | |
1398 | d1 = display_chain; | |
1399 | display_chain = d1->next; | |
1400 | free_display (d1); | |
1401 | } | |
1402 | else | |
c5aa993b | 1403 | for (d = display_chain;; d = d->next) |
c906108c SS |
1404 | { |
1405 | if (d->next == 0) | |
8a3fe4f8 | 1406 | error (_("No display number %d."), num); |
c906108c SS |
1407 | if (d->next->number == num) |
1408 | { | |
1409 | d1 = d->next; | |
1410 | d->next = d1->next; | |
1411 | free_display (d1); | |
1412 | break; | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | ||
1417 | /* Delete some values from the auto-display chain. | |
1418 | Specify the element numbers. */ | |
1419 | ||
1420 | static void | |
fba45db2 | 1421 | undisplay_command (char *args, int from_tty) |
c906108c | 1422 | { |
52f0bd74 AC |
1423 | char *p = args; |
1424 | char *p1; | |
1425 | int num; | |
c906108c SS |
1426 | |
1427 | if (args == 0) | |
1428 | { | |
1429 | if (query ("Delete all auto-display expressions? ")) | |
1430 | clear_displays (); | |
1431 | dont_repeat (); | |
1432 | return; | |
1433 | } | |
1434 | ||
1435 | while (*p) | |
1436 | { | |
1437 | p1 = p; | |
c5aa993b JM |
1438 | while (*p1 >= '0' && *p1 <= '9') |
1439 | p1++; | |
c906108c | 1440 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1441 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1442 | |
1443 | num = atoi (p); | |
1444 | ||
1445 | delete_display (num); | |
1446 | ||
1447 | p = p1; | |
c5aa993b JM |
1448 | while (*p == ' ' || *p == '\t') |
1449 | p++; | |
c906108c SS |
1450 | } |
1451 | dont_repeat (); | |
1452 | } | |
1453 | ||
1454 | /* Display a single auto-display. | |
1455 | Do nothing if the display cannot be printed in the current context, | |
1456 | or if the display is disabled. */ | |
1457 | ||
1458 | static void | |
fba45db2 | 1459 | do_one_display (struct display *d) |
c906108c SS |
1460 | { |
1461 | int within_current_scope; | |
1462 | ||
b5de0fa7 | 1463 | if (d->enabled_p == 0) |
c906108c SS |
1464 | return; |
1465 | ||
1466 | if (d->block) | |
ae767bfb | 1467 | within_current_scope = contained_in (get_selected_block (0), d->block); |
c906108c SS |
1468 | else |
1469 | within_current_scope = 1; | |
1470 | if (!within_current_scope) | |
1471 | return; | |
1472 | ||
1473 | current_display_number = d->number; | |
1474 | ||
1475 | annotate_display_begin (); | |
1476 | printf_filtered ("%d", d->number); | |
1477 | annotate_display_number_end (); | |
1478 | printf_filtered (": "); | |
1479 | if (d->format.size) | |
1480 | { | |
1481 | CORE_ADDR addr; | |
3d6d86c6 | 1482 | struct value *val; |
c906108c SS |
1483 | |
1484 | annotate_display_format (); | |
1485 | ||
1486 | printf_filtered ("x/"); | |
1487 | if (d->format.count != 1) | |
1488 | printf_filtered ("%d", d->format.count); | |
1489 | printf_filtered ("%c", d->format.format); | |
1490 | if (d->format.format != 'i' && d->format.format != 's') | |
1491 | printf_filtered ("%c", d->format.size); | |
1492 | printf_filtered (" "); | |
1493 | ||
1494 | annotate_display_expression (); | |
1495 | ||
1496 | print_expression (d->exp, gdb_stdout); | |
1497 | annotate_display_expression_end (); | |
1498 | ||
6a2eb474 | 1499 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1500 | printf_filtered ("\n"); |
1501 | else | |
1502 | printf_filtered (" "); | |
c5aa993b | 1503 | |
c906108c | 1504 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1505 | addr = value_as_address (val); |
c906108c | 1506 | if (d->format.format == 'i') |
bf6ae464 | 1507 | addr = gdbarch_addr_bits_remove (current_gdbarch, addr); |
c906108c SS |
1508 | |
1509 | annotate_display_value (); | |
1510 | ||
00a4c844 | 1511 | do_examine (d->format, addr); |
c906108c SS |
1512 | } |
1513 | else | |
1514 | { | |
79a45b7d TT |
1515 | struct value_print_options opts; |
1516 | ||
c906108c SS |
1517 | annotate_display_format (); |
1518 | ||
1519 | if (d->format.format) | |
1520 | printf_filtered ("/%c ", d->format.format); | |
1521 | ||
1522 | annotate_display_expression (); | |
1523 | ||
1524 | print_expression (d->exp, gdb_stdout); | |
1525 | annotate_display_expression_end (); | |
1526 | ||
1527 | printf_filtered (" = "); | |
1528 | ||
1529 | annotate_display_expression (); | |
1530 | ||
79a45b7d | 1531 | get_formatted_print_options (&opts, d->format.format); |
c906108c | 1532 | print_formatted (evaluate_expression (d->exp), |
79a45b7d | 1533 | d->format.size, &opts, gdb_stdout); |
c906108c SS |
1534 | printf_filtered ("\n"); |
1535 | } | |
1536 | ||
1537 | annotate_display_end (); | |
1538 | ||
1539 | gdb_flush (gdb_stdout); | |
1540 | current_display_number = -1; | |
1541 | } | |
1542 | ||
1543 | /* Display all of the values on the auto-display chain which can be | |
1544 | evaluated in the current scope. */ | |
1545 | ||
1546 | void | |
fba45db2 | 1547 | do_displays (void) |
c906108c | 1548 | { |
52f0bd74 | 1549 | struct display *d; |
c906108c SS |
1550 | |
1551 | for (d = display_chain; d; d = d->next) | |
1552 | do_one_display (d); | |
1553 | } | |
1554 | ||
1555 | /* Delete the auto-display which we were in the process of displaying. | |
1556 | This is done when there is an error or a signal. */ | |
1557 | ||
1558 | void | |
fba45db2 | 1559 | disable_display (int num) |
c906108c | 1560 | { |
52f0bd74 | 1561 | struct display *d; |
c906108c SS |
1562 | |
1563 | for (d = display_chain; d; d = d->next) | |
1564 | if (d->number == num) | |
1565 | { | |
b5de0fa7 | 1566 | d->enabled_p = 0; |
c906108c SS |
1567 | return; |
1568 | } | |
a3f17187 | 1569 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1570 | } |
c5aa993b | 1571 | |
c906108c | 1572 | void |
fba45db2 | 1573 | disable_current_display (void) |
c906108c SS |
1574 | { |
1575 | if (current_display_number >= 0) | |
1576 | { | |
1577 | disable_display (current_display_number); | |
675dcf4f MK |
1578 | fprintf_unfiltered (gdb_stderr, _("\ |
1579 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1580 | current_display_number); |
c906108c SS |
1581 | } |
1582 | current_display_number = -1; | |
1583 | } | |
1584 | ||
1585 | static void | |
fba45db2 | 1586 | display_info (char *ignore, int from_tty) |
c906108c | 1587 | { |
52f0bd74 | 1588 | struct display *d; |
c906108c SS |
1589 | |
1590 | if (!display_chain) | |
a3f17187 | 1591 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1592 | else |
a3f17187 AC |
1593 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1594 | Num Enb Expression\n")); | |
c906108c SS |
1595 | |
1596 | for (d = display_chain; d; d = d->next) | |
1597 | { | |
b5de0fa7 | 1598 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1599 | if (d->format.size) |
1600 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1601 | d->format.format); |
c906108c SS |
1602 | else if (d->format.format) |
1603 | printf_filtered ("/%c ", d->format.format); | |
1604 | print_expression (d->exp, gdb_stdout); | |
ae767bfb | 1605 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1606 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1607 | printf_filtered ("\n"); |
1608 | gdb_flush (gdb_stdout); | |
1609 | } | |
1610 | } | |
1611 | ||
1612 | static void | |
fba45db2 | 1613 | enable_display (char *args, int from_tty) |
c906108c | 1614 | { |
52f0bd74 AC |
1615 | char *p = args; |
1616 | char *p1; | |
1617 | int num; | |
1618 | struct display *d; | |
c906108c SS |
1619 | |
1620 | if (p == 0) | |
1621 | { | |
1622 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1623 | d->enabled_p = 1; |
c906108c SS |
1624 | } |
1625 | else | |
1626 | while (*p) | |
1627 | { | |
1628 | p1 = p; | |
1629 | while (*p1 >= '0' && *p1 <= '9') | |
1630 | p1++; | |
1631 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1632 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1633 | |
c906108c | 1634 | num = atoi (p); |
c5aa993b | 1635 | |
c906108c SS |
1636 | for (d = display_chain; d; d = d->next) |
1637 | if (d->number == num) | |
1638 | { | |
b5de0fa7 | 1639 | d->enabled_p = 1; |
c906108c SS |
1640 | goto win; |
1641 | } | |
a3f17187 | 1642 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1643 | win: |
1644 | p = p1; | |
1645 | while (*p == ' ' || *p == '\t') | |
1646 | p++; | |
1647 | } | |
1648 | } | |
1649 | ||
c906108c | 1650 | static void |
fba45db2 | 1651 | disable_display_command (char *args, int from_tty) |
c906108c | 1652 | { |
52f0bd74 AC |
1653 | char *p = args; |
1654 | char *p1; | |
1655 | struct display *d; | |
c906108c SS |
1656 | |
1657 | if (p == 0) | |
1658 | { | |
1659 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1660 | d->enabled_p = 0; |
c906108c SS |
1661 | } |
1662 | else | |
1663 | while (*p) | |
1664 | { | |
1665 | p1 = p; | |
1666 | while (*p1 >= '0' && *p1 <= '9') | |
1667 | p1++; | |
1668 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1669 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1670 | |
c906108c SS |
1671 | disable_display (atoi (p)); |
1672 | ||
1673 | p = p1; | |
1674 | while (*p == ' ' || *p == '\t') | |
1675 | p++; | |
1676 | } | |
1677 | } | |
c906108c | 1678 | \f |
c5aa993b | 1679 | |
675dcf4f MK |
1680 | /* Print the value in stack frame FRAME of a variable specified by a |
1681 | struct symbol. */ | |
c906108c SS |
1682 | |
1683 | void | |
fba45db2 KB |
1684 | print_variable_value (struct symbol *var, struct frame_info *frame, |
1685 | struct ui_file *stream) | |
c906108c | 1686 | { |
3d6d86c6 | 1687 | struct value *val = read_var_value (var, frame); |
79a45b7d | 1688 | struct value_print_options opts; |
c906108c | 1689 | |
79a45b7d TT |
1690 | get_user_print_options (&opts); |
1691 | value_print (val, stream, &opts); | |
c906108c SS |
1692 | } |
1693 | ||
c906108c | 1694 | static void |
fba45db2 | 1695 | printf_command (char *arg, int from_tty) |
c906108c | 1696 | { |
52f0bd74 AC |
1697 | char *f = NULL; |
1698 | char *s = arg; | |
c906108c | 1699 | char *string = NULL; |
3d6d86c6 | 1700 | struct value **val_args; |
c906108c SS |
1701 | char *substrings; |
1702 | char *current_substring; | |
1703 | int nargs = 0; | |
1704 | int allocated_args = 20; | |
1705 | struct cleanup *old_cleanups; | |
1706 | ||
675dcf4f | 1707 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1708 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1709 | |
1710 | if (s == 0) | |
e2e0b3e5 | 1711 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1712 | |
1713 | /* Skip white space before format string */ | |
c5aa993b JM |
1714 | while (*s == ' ' || *s == '\t') |
1715 | s++; | |
c906108c | 1716 | |
675dcf4f | 1717 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1718 | if (*s++ != '"') |
8a3fe4f8 | 1719 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1720 | |
1721 | /* Parse the format-control string and copy it into the string STRING, | |
1722 | processing some kinds of escape sequence. */ | |
1723 | ||
1724 | f = string = (char *) alloca (strlen (s) + 1); | |
1725 | ||
1726 | while (*s != '"') | |
1727 | { | |
1728 | int c = *s++; | |
1729 | switch (c) | |
1730 | { | |
1731 | case '\0': | |
8a3fe4f8 | 1732 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1733 | |
1734 | case '\\': | |
1735 | switch (c = *s++) | |
1736 | { | |
1737 | case '\\': | |
1738 | *f++ = '\\'; | |
1739 | break; | |
1740 | case 'a': | |
c906108c | 1741 | *f++ = '\a'; |
c906108c SS |
1742 | break; |
1743 | case 'b': | |
1744 | *f++ = '\b'; | |
1745 | break; | |
1746 | case 'f': | |
1747 | *f++ = '\f'; | |
1748 | break; | |
1749 | case 'n': | |
1750 | *f++ = '\n'; | |
1751 | break; | |
1752 | case 'r': | |
1753 | *f++ = '\r'; | |
1754 | break; | |
1755 | case 't': | |
1756 | *f++ = '\t'; | |
1757 | break; | |
1758 | case 'v': | |
1759 | *f++ = '\v'; | |
1760 | break; | |
1761 | case '"': | |
1762 | *f++ = '"'; | |
1763 | break; | |
1764 | default: | |
1765 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 1766 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
1767 | c); |
1768 | } | |
1769 | break; | |
1770 | ||
1771 | default: | |
1772 | *f++ = c; | |
1773 | } | |
1774 | } | |
1775 | ||
1776 | /* Skip over " and following space and comma. */ | |
1777 | s++; | |
1778 | *f++ = '\0'; | |
c5aa993b JM |
1779 | while (*s == ' ' || *s == '\t') |
1780 | s++; | |
c906108c SS |
1781 | |
1782 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 1783 | error (_("Invalid argument syntax")); |
c906108c | 1784 | |
c5aa993b JM |
1785 | if (*s == ',') |
1786 | s++; | |
1787 | while (*s == ' ' || *s == '\t') | |
1788 | s++; | |
c906108c SS |
1789 | |
1790 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
1791 | substrings = alloca (strlen (string) * 2); | |
1792 | current_substring = substrings; | |
1793 | ||
1794 | { | |
1795 | /* Now scan the string for %-specs and see what kinds of args they want. | |
1796 | argclass[I] classifies the %-specs so we can give printf_filtered | |
1797 | something of the right size. */ | |
1798 | ||
c5aa993b JM |
1799 | enum argclass |
1800 | { | |
46e9880c | 1801 | int_arg, long_arg, long_long_arg, ptr_arg, string_arg, |
1a619819 | 1802 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 1803 | }; |
c906108c SS |
1804 | enum argclass *argclass; |
1805 | enum argclass this_argclass; | |
1806 | char *last_arg; | |
1807 | int nargs_wanted; | |
c906108c SS |
1808 | int i; |
1809 | ||
1810 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
1811 | nargs_wanted = 0; | |
1812 | f = string; | |
1813 | last_arg = string; | |
1814 | while (*f) | |
1815 | if (*f++ == '%') | |
1816 | { | |
46e9880c DJ |
1817 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
1818 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
1819 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
1820 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
1821 | int bad = 0; |
1822 | ||
1823 | /* Check the validity of the format specifier, and work | |
1824 | out what argument it expects. We only accept C89 | |
1825 | format strings, with the exception of long long (which | |
1826 | we autoconf for). */ | |
1827 | ||
1828 | /* Skip over "%%". */ | |
1829 | if (*f == '%') | |
c906108c | 1830 | { |
c906108c | 1831 | f++; |
46e9880c | 1832 | continue; |
c906108c | 1833 | } |
46e9880c DJ |
1834 | |
1835 | /* The first part of a format specifier is a set of flag | |
1836 | characters. */ | |
1837 | while (strchr ("0-+ #", *f)) | |
1838 | { | |
1839 | if (*f == '#') | |
1840 | seen_hash = 1; | |
1841 | else if (*f == '0') | |
1842 | seen_zero = 1; | |
1843 | else if (*f == ' ') | |
1844 | seen_space = 1; | |
1845 | else if (*f == '+') | |
1846 | seen_plus = 1; | |
1847 | f++; | |
1848 | } | |
1849 | ||
1850 | /* The next part of a format specifier is a width. */ | |
1851 | while (strchr ("0123456789", *f)) | |
1852 | f++; | |
1853 | ||
1854 | /* The next part of a format specifier is a precision. */ | |
1855 | if (*f == '.') | |
1856 | { | |
1857 | seen_prec = 1; | |
1858 | f++; | |
1859 | while (strchr ("0123456789", *f)) | |
1860 | f++; | |
1861 | } | |
1862 | ||
1863 | /* The next part of a format specifier is a length modifier. */ | |
1864 | if (*f == 'h') | |
1865 | { | |
1866 | seen_h = 1; | |
1867 | f++; | |
1868 | } | |
1869 | else if (*f == 'l') | |
1870 | { | |
1871 | f++; | |
1872 | lcount++; | |
1873 | if (*f == 'l') | |
1874 | { | |
1875 | f++; | |
1876 | lcount++; | |
1877 | } | |
1878 | } | |
1879 | else if (*f == 'L') | |
1880 | { | |
1881 | seen_big_l = 1; | |
1882 | f++; | |
1883 | } | |
0aea4bf3 LM |
1884 | /* Decimal32 modifier. */ |
1885 | else if (*f == 'H') | |
1886 | { | |
1887 | seen_big_h = 1; | |
1888 | f++; | |
1889 | } | |
1890 | /* Decimal64 and Decimal128 modifiers. */ | |
1891 | else if (*f == 'D') | |
1892 | { | |
1893 | f++; | |
1894 | ||
1895 | /* Check for a Decimal128. */ | |
1896 | if (*f == 'D') | |
1897 | { | |
1898 | f++; | |
1899 | seen_double_big_d = 1; | |
1900 | } | |
1901 | else | |
1902 | seen_big_d = 1; | |
1903 | } | |
46e9880c | 1904 | |
c906108c SS |
1905 | switch (*f) |
1906 | { | |
46e9880c DJ |
1907 | case 'u': |
1908 | if (seen_hash) | |
1909 | bad = 1; | |
1910 | /* FALLTHROUGH */ | |
1911 | ||
1912 | case 'o': | |
1913 | case 'x': | |
1914 | case 'X': | |
1915 | if (seen_space || seen_plus) | |
1916 | bad = 1; | |
1917 | /* FALLTHROUGH */ | |
1918 | ||
1919 | case 'd': | |
1920 | case 'i': | |
1921 | if (lcount == 0) | |
1922 | this_argclass = int_arg; | |
1923 | else if (lcount == 1) | |
1924 | this_argclass = long_arg; | |
1925 | else | |
1926 | this_argclass = long_long_arg; | |
1927 | ||
1928 | if (seen_big_l) | |
1929 | bad = 1; | |
1930 | break; | |
1931 | ||
1932 | case 'c': | |
1933 | this_argclass = int_arg; | |
1934 | if (lcount || seen_h || seen_big_l) | |
1935 | bad = 1; | |
1936 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1937 | bad = 1; | |
1938 | break; | |
1939 | ||
1940 | case 'p': | |
1941 | this_argclass = ptr_arg; | |
1942 | if (lcount || seen_h || seen_big_l) | |
1943 | bad = 1; | |
1944 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1945 | bad = 1; | |
1946 | break; | |
1947 | ||
c906108c SS |
1948 | case 's': |
1949 | this_argclass = string_arg; | |
46e9880c DJ |
1950 | if (lcount || seen_h || seen_big_l) |
1951 | bad = 1; | |
1952 | if (seen_zero || seen_space || seen_plus) | |
1953 | bad = 1; | |
c906108c SS |
1954 | break; |
1955 | ||
1956 | case 'e': | |
1957 | case 'f': | |
1958 | case 'g': | |
46e9880c DJ |
1959 | case 'E': |
1960 | case 'G': | |
0aea4bf3 LM |
1961 | if (seen_big_h || seen_big_d || seen_double_big_d) |
1962 | this_argclass = decfloat_arg; | |
1963 | else if (seen_big_l) | |
46e9880c DJ |
1964 | this_argclass = long_double_arg; |
1965 | else | |
1966 | this_argclass = double_arg; | |
1967 | ||
1968 | if (lcount || seen_h) | |
1969 | bad = 1; | |
c906108c SS |
1970 | break; |
1971 | ||
1972 | case '*': | |
8a3fe4f8 | 1973 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
1974 | |
1975 | case 'n': | |
8a3fe4f8 | 1976 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 1977 | |
46e9880c DJ |
1978 | case '\0': |
1979 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
1980 | |
1981 | default: | |
46e9880c | 1982 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 1983 | } |
46e9880c DJ |
1984 | |
1985 | if (bad) | |
1986 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
1987 | *f); | |
1988 | ||
c906108c | 1989 | f++; |
09d71d23 AS |
1990 | |
1991 | if (lcount > 1 && USE_PRINTF_I64) | |
1992 | { | |
1993 | /* Windows' printf does support long long, but not the usual way. | |
1994 | Convert %lld to %I64d. */ | |
1995 | int length_before_ll = f - last_arg - 1 - lcount; | |
1996 | strncpy (current_substring, last_arg, length_before_ll); | |
1997 | strcpy (current_substring + length_before_ll, "I64"); | |
1998 | current_substring[length_before_ll + 3] = | |
1999 | last_arg[length_before_ll + lcount]; | |
2000 | current_substring += length_before_ll + 4; | |
2001 | } | |
2002 | else | |
2003 | { | |
2004 | strncpy (current_substring, last_arg, f - last_arg); | |
2005 | current_substring += f - last_arg; | |
2006 | } | |
46e9880c DJ |
2007 | *current_substring++ = '\0'; |
2008 | last_arg = f; | |
2009 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2010 | } |
2011 | ||
2012 | /* Now, parse all arguments and evaluate them. | |
2013 | Store the VALUEs in VAL_ARGS. */ | |
2014 | ||
2015 | while (*s != '\0') | |
2016 | { | |
2017 | char *s1; | |
2018 | if (nargs == allocated_args) | |
f976f6d4 AC |
2019 | val_args = (struct value **) xrealloc ((char *) val_args, |
2020 | (allocated_args *= 2) | |
2021 | * sizeof (struct value *)); | |
c906108c SS |
2022 | s1 = s; |
2023 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2024 | |
c906108c SS |
2025 | nargs++; |
2026 | s = s1; | |
2027 | if (*s == ',') | |
2028 | s++; | |
2029 | } | |
c5aa993b | 2030 | |
c906108c | 2031 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2032 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2033 | |
2034 | /* Now actually print them. */ | |
2035 | current_substring = substrings; | |
2036 | for (i = 0; i < nargs; i++) | |
2037 | { | |
2038 | switch (argclass[i]) | |
2039 | { | |
2040 | case string_arg: | |
2041 | { | |
777ea8f1 | 2042 | gdb_byte *str; |
c906108c SS |
2043 | CORE_ADDR tem; |
2044 | int j; | |
1aa20aa8 | 2045 | tem = value_as_address (val_args[i]); |
c906108c SS |
2046 | |
2047 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2048 | for (j = 0;; j++) |
c906108c | 2049 | { |
777ea8f1 | 2050 | gdb_byte c; |
c906108c | 2051 | QUIT; |
d4b2399a | 2052 | read_memory (tem + j, &c, 1); |
c906108c SS |
2053 | if (c == 0) |
2054 | break; | |
2055 | } | |
2056 | ||
2057 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2058 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2059 | if (j != 0) |
2060 | read_memory (tem, str, j); | |
c906108c SS |
2061 | str[j] = 0; |
2062 | ||
777ea8f1 | 2063 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2064 | } |
2065 | break; | |
2066 | case double_arg: | |
2067 | { | |
b806fb9a UW |
2068 | struct type *type = value_type (val_args[i]); |
2069 | DOUBLEST val; | |
2070 | int inv; | |
2071 | ||
2072 | /* If format string wants a float, unchecked-convert the value | |
2073 | to floating point of the same size. */ | |
2074 | type = float_type_from_length (current_gdbarch, type); | |
2075 | val = unpack_double (type, value_contents (val_args[i]), &inv); | |
2076 | if (inv) | |
2077 | error (_("Invalid floating value found in program.")); | |
2078 | ||
2079 | printf_filtered (current_substring, (double) val); | |
c906108c SS |
2080 | break; |
2081 | } | |
46e9880c DJ |
2082 | case long_double_arg: |
2083 | #ifdef HAVE_LONG_DOUBLE | |
2084 | { | |
b806fb9a UW |
2085 | struct type *type = value_type (val_args[i]); |
2086 | DOUBLEST val; | |
2087 | int inv; | |
2088 | ||
2089 | /* If format string wants a float, unchecked-convert the value | |
2090 | to floating point of the same size. */ | |
2091 | type = float_type_from_length (current_gdbarch, type); | |
2092 | val = unpack_double (type, value_contents (val_args[i]), &inv); | |
2093 | if (inv) | |
2094 | error (_("Invalid floating value found in program.")); | |
2095 | ||
2096 | printf_filtered (current_substring, (long double) val); | |
46e9880c DJ |
2097 | break; |
2098 | } | |
2099 | #else | |
2100 | error (_("long double not supported in printf")); | |
2101 | #endif | |
c906108c SS |
2102 | case long_long_arg: |
2103 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2104 | { | |
2105 | long long val = value_as_long (val_args[i]); | |
2106 | printf_filtered (current_substring, val); | |
2107 | break; | |
2108 | } | |
2109 | #else | |
8a3fe4f8 | 2110 | error (_("long long not supported in printf")); |
c906108c SS |
2111 | #endif |
2112 | case int_arg: | |
2113 | { | |
46e9880c DJ |
2114 | int val = value_as_long (val_args[i]); |
2115 | printf_filtered (current_substring, val); | |
2116 | break; | |
2117 | } | |
2118 | case long_arg: | |
2119 | { | |
c906108c SS |
2120 | long val = value_as_long (val_args[i]); |
2121 | printf_filtered (current_substring, val); | |
2122 | break; | |
2123 | } | |
1a619819 | 2124 | |
0aea4bf3 LM |
2125 | /* Handles decimal floating values. */ |
2126 | case decfloat_arg: | |
1a619819 | 2127 | { |
0aea4bf3 | 2128 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2129 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2130 | /* If we have native support for Decimal floating |
2131 | printing, handle it here. */ | |
2132 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2133 | #else |
1a619819 LM |
2134 | |
2135 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2136 | we convert the DFP values to string and print them using |
2137 | the %s format specifier. */ | |
2138 | ||
2139 | char *eos, *sos; | |
2140 | int nnull_chars = 0; | |
2141 | ||
2142 | /* Parameter data. */ | |
2143 | struct type *param_type = value_type (val_args[i]); | |
2144 | unsigned int param_len = TYPE_LENGTH (param_type); | |
2145 | ||
2146 | /* DFP output data. */ | |
2147 | struct value *dfp_value = NULL; | |
2148 | gdb_byte *dfp_ptr; | |
2149 | int dfp_len = 16; | |
2150 | gdb_byte dec[16]; | |
2151 | struct type *dfp_type = NULL; | |
2152 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2153 | |
2154 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2155 | and check for DFP length modifiers. */ |
1a619819 LM |
2156 | eos = current_substring + strlen (current_substring); |
2157 | ||
0aea4bf3 LM |
2158 | /* Look for the float/double format specifier. */ |
2159 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2160 | && *eos != 'g' && *eos != 'G') | |
2161 | eos--; | |
2162 | ||
2163 | sos = eos; | |
2164 | ||
2165 | /* Search for the '%' char and extract the size and type of | |
2166 | the output decimal value based on its modifiers | |
2167 | (%Hf, %Df, %DDf). */ | |
2168 | while (*--sos != '%') | |
2169 | { | |
2170 | if (*sos == 'H') | |
2171 | { | |
2172 | dfp_len = 4; | |
2173 | dfp_type = builtin_type (current_gdbarch)->builtin_decfloat; | |
2174 | } | |
2175 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2176 | { | |
2177 | dfp_len = 16; | |
2178 | dfp_type = builtin_type (current_gdbarch)->builtin_declong; | |
2179 | sos--; | |
2180 | } | |
2181 | else | |
2182 | { | |
2183 | dfp_len = 8; | |
2184 | dfp_type = builtin_type (current_gdbarch)->builtin_decdouble; | |
2185 | } | |
2186 | } | |
2187 | ||
2188 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2189 | *++sos = 's'; | |
2190 | ||
2191 | /* Go through the whole format string and pull the correct | |
2192 | number of chars back to compensate for the change in the | |
2193 | format specifier. */ | |
2194 | while (nnull_chars < nargs - i) | |
2195 | { | |
2196 | if (*eos == '\0') | |
2197 | nnull_chars++; | |
2198 | ||
2199 | *++sos = *++eos; | |
2200 | } | |
2201 | ||
2202 | /* Conversion between different DFP types. */ | |
2203 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
2204 | decimal_convert (param_ptr, param_len, dec, dfp_len); | |
2205 | else | |
2206 | /* If this is a non-trivial conversion, just output 0. | |
2207 | A correct converted value can be displayed by explicitly | |
2208 | casting to a DFP type. */ | |
2209 | decimal_from_string (dec, dfp_len, "0"); | |
2210 | ||
2211 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2212 | ||
2213 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2214 | ||
2215 | decimal_to_string (dfp_ptr, dfp_len, decstr); | |
1a619819 LM |
2216 | |
2217 | /* Print the DFP value. */ | |
2218 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2219 | |
1a619819 LM |
2220 | break; |
2221 | #endif | |
2222 | } | |
2223 | ||
2025a643 DJ |
2224 | case ptr_arg: |
2225 | { | |
2226 | /* We avoid the host's %p because pointers are too | |
2227 | likely to be the wrong size. The only interesting | |
2228 | modifier for %p is a width; extract that, and then | |
2229 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2230 | ||
2231 | char *p, *fmt, *fmt_p; | |
2232 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2233 | long long val = value_as_long (val_args[i]); | |
2234 | #else | |
2235 | long val = value_as_long (val_args[i]); | |
2236 | #endif | |
2237 | ||
2238 | fmt = alloca (strlen (current_substring) + 5); | |
2239 | ||
2240 | /* Copy up to the leading %. */ | |
2241 | p = current_substring; | |
2242 | fmt_p = fmt; | |
2243 | while (*p) | |
2244 | { | |
2245 | int is_percent = (*p == '%'); | |
2246 | *fmt_p++ = *p++; | |
2247 | if (is_percent) | |
2248 | { | |
2249 | if (*p == '%') | |
2250 | *fmt_p++ = *p++; | |
2251 | else | |
2252 | break; | |
2253 | } | |
2254 | } | |
2255 | ||
2256 | if (val != 0) | |
2257 | *fmt_p++ = '#'; | |
2258 | ||
2259 | /* Copy any width. */ | |
2260 | while (*p >= '0' && *p < '9') | |
2261 | *fmt_p++ = *p++; | |
2262 | ||
2263 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2264 | if (val != 0) | |
2265 | { | |
2266 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2267 | *fmt_p++ = 'l'; | |
2268 | #endif | |
2269 | *fmt_p++ = 'l'; | |
2270 | *fmt_p++ = 'x'; | |
2271 | *fmt_p++ = '\0'; | |
2272 | printf_filtered (fmt, val); | |
2273 | } | |
2274 | else | |
2275 | { | |
2276 | *fmt_p++ = 's'; | |
2277 | *fmt_p++ = '\0'; | |
2278 | printf_filtered (fmt, "(nil)"); | |
2279 | } | |
2280 | ||
2281 | break; | |
2282 | } | |
675dcf4f MK |
2283 | default: |
2284 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2285 | _("failed internal consistency check")); |
c906108c SS |
2286 | } |
2287 | /* Skip to the next substring. */ | |
2288 | current_substring += strlen (current_substring) + 1; | |
2289 | } | |
2290 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2291 | puts_filtered (last_arg); |
c906108c SS |
2292 | } |
2293 | do_cleanups (old_cleanups); | |
2294 | } | |
c906108c | 2295 | |
c906108c | 2296 | void |
fba45db2 | 2297 | _initialize_printcmd (void) |
c906108c | 2298 | { |
c94fdfd0 EZ |
2299 | struct cmd_list_element *c; |
2300 | ||
c906108c SS |
2301 | current_display_number = -1; |
2302 | ||
2303 | add_info ("address", address_info, | |
1bedd215 | 2304 | _("Describe where symbol SYM is stored.")); |
c906108c | 2305 | |
1bedd215 AC |
2306 | add_info ("symbol", sym_info, _("\ |
2307 | Describe what symbol is at location ADDR.\n\ | |
2308 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2309 | |
1bedd215 AC |
2310 | add_com ("x", class_vars, x_command, _("\ |
2311 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2312 | ADDRESS is an expression for the memory address to examine.\n\ |
2313 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2314 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2315 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2316 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2317 | The specified number of objects of the specified size are printed\n\ |
2318 | according to the format.\n\n\ | |
2319 | Defaults for format and size letters are those previously used.\n\ | |
2320 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2321 | with this command or \"print\".")); |
c906108c | 2322 | |
c906108c SS |
2323 | #if 0 |
2324 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2325 | _("Print line number and file of definition of variable.")); |
c906108c | 2326 | #endif |
c5aa993b | 2327 | |
1bedd215 AC |
2328 | add_info ("display", display_info, _("\ |
2329 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2330 | |
1a966eab AC |
2331 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2332 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2333 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2334 | No argument means cancel all automatic-display expressions.\n\ | |
2335 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2336 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2337 | &cmdlist); |
c906108c | 2338 | |
1bedd215 AC |
2339 | add_com ("display", class_vars, display_command, _("\ |
2340 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2341 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2342 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2343 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2344 | and examining is done as in the \"x\" command.\n\n\ | |
2345 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2346 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2347 | |
1a966eab AC |
2348 | add_cmd ("display", class_vars, enable_display, _("\ |
2349 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2350 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2351 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2352 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2353 | |
1a966eab AC |
2354 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2355 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2356 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2357 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2358 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2359 | |
1a966eab AC |
2360 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2361 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2362 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2363 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2364 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2365 | |
1bedd215 AC |
2366 | add_com ("printf", class_vars, printf_command, _("\ |
2367 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2368 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2369 | |
1bedd215 AC |
2370 | add_com ("output", class_vars, output_command, _("\ |
2371 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2372 | This is useful in user-defined commands.")); | |
c906108c | 2373 | |
1bedd215 AC |
2374 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2375 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2376 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2377 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2378 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2379 | variable in the program being debugged. EXP is any valid expression.\n\ |
2380 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2381 | \n\ | |
2382 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2383 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2384 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2385 | if (dbx_commands) |
1bedd215 AC |
2386 | add_com ("assign", class_vars, set_command, _("\ |
2387 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2388 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2389 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2390 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2391 | variable in the program being debugged. EXP is any valid expression.\n\ |
2392 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2393 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2394 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2395 | |
2396 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2397 | c = add_com ("call", class_vars, call_command, _("\ |
2398 | Call a function in the program.\n\ | |
c906108c SS |
2399 | The argument is the function name and arguments, in the notation of the\n\ |
2400 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2401 | history, if it is not void.")); |
65d12d83 | 2402 | set_cmd_completer (c, expression_completer); |
c906108c | 2403 | |
1a966eab AC |
2404 | add_cmd ("variable", class_vars, set_command, _("\ |
2405 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2406 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2407 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2408 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2409 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2410 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2411 | &setlist); |
c906108c | 2412 | |
1bedd215 AC |
2413 | c = add_com ("print", class_vars, print_command, _("\ |
2414 | Print value of expression EXP.\n\ | |
c906108c SS |
2415 | Variables accessible are those of the lexical environment of the selected\n\ |
2416 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2417 | \n\ | |
2418 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2419 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2420 | Names starting with $ refer to registers (with the values they would have\n\ |
2421 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2422 | all registers saved by frames farther in) or else to debugger\n\ |
2423 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2424 | Use assignment expressions to give values to convenience variables.\n\ |
2425 | \n\ | |
c906108c SS |
2426 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2427 | @ is a binary operator for treating consecutive data objects\n\ | |
2428 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2429 | element is FOO, whose second element is stored in the space following\n\ | |
2430 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2431 | resides in memory.\n\ |
2432 | \n\ | |
c906108c | 2433 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2434 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2435 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2436 | add_com_alias ("p", "print", class_vars, 1); |
2437 | ||
1bedd215 AC |
2438 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2439 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2440 | environment, the value is printed in its own window.")); | |
65d12d83 | 2441 | set_cmd_completer (c, expression_completer); |
c906108c | 2442 | |
35096d9d AC |
2443 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2444 | &max_symbolic_offset, _("\ | |
2445 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2446 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2447 | NULL, | |
920d2a44 | 2448 | show_max_symbolic_offset, |
35096d9d | 2449 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2450 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2451 | &print_symbol_filename, _("\ | |
2452 | Set printing of source filename and line number with <symbol>."), _("\ | |
2453 | Show printing of source filename and line number with <symbol>."), NULL, | |
2454 | NULL, | |
920d2a44 | 2455 | show_print_symbol_filename, |
5bf193a2 | 2456 | &setprintlist, &showprintlist); |
c906108c SS |
2457 | |
2458 | /* For examine/instruction a single byte quantity is specified as | |
2459 | the data. This avoids problems with value_at_lazy() requiring a | |
2460 | valid data type (and rejecting VOID). */ | |
2461 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2462 | ||
2463 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2464 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2465 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2466 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2467 | ||
2468 | } |