Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | |
0fd88904 | 5 | 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" |
c906108c | 44 | |
6a83354a AC |
45 | #ifdef TUI |
46 | #include "tui/tui.h" /* For tui_active et.al. */ | |
47 | #endif | |
48 | ||
c906108c SS |
49 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ |
50 | extern int addressprint; /* Whether to print hex addresses in HLL " */ | |
51 | ||
52 | struct format_data | |
c5aa993b JM |
53 | { |
54 | int count; | |
55 | char format; | |
56 | char size; | |
57 | }; | |
c906108c SS |
58 | |
59 | /* Last specified output format. */ | |
60 | ||
61 | static char last_format = 'x'; | |
62 | ||
63 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
64 | ||
65 | static char last_size = 'w'; | |
66 | ||
67 | /* Default address to examine next. */ | |
68 | ||
69 | static CORE_ADDR next_address; | |
70 | ||
a4642986 MR |
71 | /* Number of delay instructions following current disassembled insn. */ |
72 | ||
73 | static int branch_delay_insns; | |
74 | ||
c906108c SS |
75 | /* Last address examined. */ |
76 | ||
77 | static CORE_ADDR last_examine_address; | |
78 | ||
79 | /* Contents of last address examined. | |
80 | This is not valid past the end of the `x' command! */ | |
81 | ||
3d6d86c6 | 82 | static struct value *last_examine_value; |
c906108c SS |
83 | |
84 | /* Largest offset between a symbolic value and an address, that will be | |
85 | printed as `0x1234 <symbol+offset>'. */ | |
86 | ||
87 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
88 | static void |
89 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
90 | struct cmd_list_element *c, const char *value) | |
91 | { | |
92 | fprintf_filtered (file, _("\ | |
93 | The largest offset that will be printed in <symbol+1234> form is %s.\n"), | |
94 | value); | |
95 | } | |
c906108c SS |
96 | |
97 | /* Append the source filename and linenumber of the symbol when | |
98 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
99 | static int print_symbol_filename = 0; | |
920d2a44 AC |
100 | static void |
101 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
102 | struct cmd_list_element *c, const char *value) | |
103 | { | |
104 | fprintf_filtered (file, _("\ | |
105 | Printing of source filename and line number with <symbol> is %s.\n"), | |
106 | value); | |
107 | } | |
c906108c SS |
108 | |
109 | /* Number of auto-display expression currently being displayed. | |
110 | So that we can disable it if we get an error or a signal within it. | |
111 | -1 when not doing one. */ | |
112 | ||
113 | int current_display_number; | |
114 | ||
115 | /* Flag to low-level print routines that this value is being printed | |
116 | in an epoch window. We'd like to pass this as a parameter, but | |
117 | every routine would need to take it. Perhaps we can encapsulate | |
118 | this in the I/O stream once we have GNU stdio. */ | |
119 | ||
120 | int inspect_it = 0; | |
121 | ||
122 | struct display | |
c5aa993b JM |
123 | { |
124 | /* Chain link to next auto-display item. */ | |
125 | struct display *next; | |
126 | /* Expression to be evaluated and displayed. */ | |
127 | struct expression *exp; | |
128 | /* Item number of this auto-display item. */ | |
129 | int number; | |
130 | /* Display format specified. */ | |
131 | struct format_data format; | |
132 | /* Innermost block required by this expression when evaluated */ | |
133 | struct block *block; | |
134 | /* Status of this display (enabled or disabled) */ | |
b5de0fa7 | 135 | int enabled_p; |
c5aa993b | 136 | }; |
c906108c SS |
137 | |
138 | /* Chain of expressions whose values should be displayed | |
139 | automatically each time the program stops. */ | |
140 | ||
141 | static struct display *display_chain; | |
142 | ||
143 | static int display_number; | |
144 | ||
145 | /* Prototypes for exported functions. */ | |
146 | ||
a14ed312 | 147 | void output_command (char *, int); |
c906108c | 148 | |
a14ed312 | 149 | void _initialize_printcmd (void); |
c906108c SS |
150 | |
151 | /* Prototypes for local functions. */ | |
152 | ||
a14ed312 | 153 | static void do_one_display (struct display *); |
c906108c | 154 | \f |
c5aa993b | 155 | |
c906108c SS |
156 | /* Decode a format specification. *STRING_PTR should point to it. |
157 | OFORMAT and OSIZE are used as defaults for the format and size | |
158 | if none are given in the format specification. | |
159 | If OSIZE is zero, then the size field of the returned value | |
160 | should be set only if a size is explicitly specified by the | |
161 | user. | |
162 | The structure returned describes all the data | |
163 | found in the specification. In addition, *STRING_PTR is advanced | |
164 | past the specification and past all whitespace following it. */ | |
165 | ||
166 | static struct format_data | |
fba45db2 | 167 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
168 | { |
169 | struct format_data val; | |
52f0bd74 | 170 | char *p = *string_ptr; |
c906108c SS |
171 | |
172 | val.format = '?'; | |
173 | val.size = '?'; | |
174 | val.count = 1; | |
175 | ||
176 | if (*p >= '0' && *p <= '9') | |
177 | val.count = atoi (p); | |
c5aa993b JM |
178 | while (*p >= '0' && *p <= '9') |
179 | p++; | |
c906108c SS |
180 | |
181 | /* Now process size or format letters that follow. */ | |
182 | ||
183 | while (1) | |
184 | { | |
185 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
186 | val.size = *p++; | |
187 | else if (*p >= 'a' && *p <= 'z') | |
188 | val.format = *p++; | |
189 | else | |
190 | break; | |
191 | } | |
192 | ||
c5aa993b JM |
193 | while (*p == ' ' || *p == '\t') |
194 | p++; | |
c906108c SS |
195 | *string_ptr = p; |
196 | ||
197 | /* Set defaults for format and size if not specified. */ | |
198 | if (val.format == '?') | |
199 | { | |
200 | if (val.size == '?') | |
201 | { | |
202 | /* Neither has been specified. */ | |
203 | val.format = oformat; | |
204 | val.size = osize; | |
205 | } | |
206 | else | |
207 | /* If a size is specified, any format makes a reasonable | |
208 | default except 'i'. */ | |
209 | val.format = oformat == 'i' ? 'x' : oformat; | |
210 | } | |
211 | else if (val.size == '?') | |
212 | switch (val.format) | |
213 | { | |
214 | case 'a': | |
215 | case 's': | |
216 | /* Pick the appropriate size for an address. */ | |
819844ad | 217 | if (gdbarch_ptr_bit (current_gdbarch) == 64) |
c906108c | 218 | val.size = osize ? 'g' : osize; |
819844ad | 219 | else if (gdbarch_ptr_bit (current_gdbarch) == 32) |
c906108c | 220 | val.size = osize ? 'w' : osize; |
819844ad | 221 | else if (gdbarch_ptr_bit (current_gdbarch) == 16) |
c906108c SS |
222 | val.size = osize ? 'h' : osize; |
223 | else | |
819844ad | 224 | /* Bad value for gdbarch_ptr_bit. */ |
675dcf4f MK |
225 | internal_error (__FILE__, __LINE__, |
226 | _("failed internal consistency check")); | |
c906108c SS |
227 | break; |
228 | case 'f': | |
229 | /* Floating point has to be word or giantword. */ | |
230 | if (osize == 'w' || osize == 'g') | |
231 | val.size = osize; | |
232 | else | |
233 | /* Default it to giantword if the last used size is not | |
234 | appropriate. */ | |
235 | val.size = osize ? 'g' : osize; | |
236 | break; | |
237 | case 'c': | |
238 | /* Characters default to one byte. */ | |
239 | val.size = osize ? 'b' : osize; | |
240 | break; | |
241 | default: | |
242 | /* The default is the size most recently specified. */ | |
243 | val.size = osize; | |
244 | } | |
245 | ||
246 | return val; | |
247 | } | |
248 | \f | |
2acceee2 | 249 | /* Print value VAL on stream according to FORMAT, a letter or 0. |
c906108c SS |
250 | Do not end with a newline. |
251 | 0 means print VAL according to its own type. | |
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 | |
aa1ee363 | 257 | print_formatted (struct value *val, int format, int size, |
fba45db2 | 258 | struct ui_file *stream) |
c906108c | 259 | { |
df407dfe | 260 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
261 | int len = TYPE_LENGTH (type); |
262 | ||
263 | if (VALUE_LVAL (val) == lval_memory) | |
675dcf4f | 264 | next_address = VALUE_ADDRESS (val) + len; |
c906108c | 265 | |
ea37ba09 | 266 | if (size) |
c906108c | 267 | { |
ea37ba09 DJ |
268 | switch (format) |
269 | { | |
270 | case 's': | |
271 | /* FIXME: Need to handle wchar_t's here... */ | |
272 | next_address = VALUE_ADDRESS (val) | |
273 | + val_print_string (VALUE_ADDRESS (val), -1, 1, stream); | |
274 | return; | |
c906108c | 275 | |
ea37ba09 DJ |
276 | case 'i': |
277 | /* We often wrap here if there are long symbolic names. */ | |
278 | wrap_here (" "); | |
279 | next_address = (VALUE_ADDRESS (val) | |
280 | + gdb_print_insn (VALUE_ADDRESS (val), stream, | |
281 | &branch_delay_insns)); | |
282 | return; | |
283 | } | |
c906108c | 284 | } |
ea37ba09 DJ |
285 | |
286 | if (format == 0 || format == 's' | |
287 | || TYPE_CODE (type) == TYPE_CODE_ARRAY | |
288 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
289 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
290 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
291 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
292 | /* If format is 0, use the 'natural' format for that type of | |
293 | value. If the type is non-scalar, we have to use language | |
294 | rules to print it as a series of scalars. */ | |
295 | value_print (val, stream, format, Val_pretty_default); | |
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, | |
300 | format, size, stream); | |
c906108c SS |
301 | } |
302 | ||
303 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
304 | according to letters FORMAT and SIZE on STREAM. | |
305 | FORMAT may not be zero. Formats s and i are not supported at this level. | |
306 | ||
307 | This is how the elements of an array or structure are printed | |
308 | with a format. */ | |
309 | ||
310 | void | |
366b1cbf AC |
311 | print_scalar_formatted (const void *valaddr, struct type *type, |
312 | int format, int size, struct ui_file *stream) | |
c906108c | 313 | { |
81cb7cc9 | 314 | LONGEST val_long = 0; |
c906108c SS |
315 | unsigned int len = TYPE_LENGTH (type); |
316 | ||
ea37ba09 DJ |
317 | /* If we get here with a string format, try again without it. Go |
318 | all the way back to the language printers, which may call us | |
319 | again. */ | |
320 | if (format == 's') | |
321 | { | |
322 | val_print (type, valaddr, 0, 0, stream, 0, 0, 0, Val_pretty_default); | |
323 | return; | |
324 | } | |
325 | ||
6b9acc27 JJ |
326 | if (len > sizeof(LONGEST) && |
327 | (TYPE_CODE (type) == TYPE_CODE_INT | |
328 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
329 | { | |
330 | switch (format) | |
331 | { | |
332 | case 'o': | |
333 | print_octal_chars (stream, valaddr, len); | |
334 | return; | |
335 | case 'u': | |
336 | case 'd': | |
337 | print_decimal_chars (stream, valaddr, len); | |
338 | return; | |
339 | case 't': | |
340 | print_binary_chars (stream, valaddr, len); | |
341 | return; | |
342 | case 'x': | |
343 | print_hex_chars (stream, valaddr, len); | |
344 | return; | |
345 | case 'c': | |
346 | print_char_chars (stream, valaddr, len); | |
347 | return; | |
348 | default: | |
349 | break; | |
350 | }; | |
351 | } | |
352 | ||
95051d27 | 353 | if (format != 'f') |
c906108c SS |
354 | val_long = unpack_long (type, valaddr); |
355 | ||
ef166cf4 | 356 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 357 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 358 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 359 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
17a912b6 | 360 | len = gdbarch_addr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 361 | |
c906108c SS |
362 | /* If we are printing it as unsigned, truncate it in case it is actually |
363 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
364 | (if shorts are 16 bits) instead of 4294967295). */ | |
365 | if (format != 'd') | |
366 | { | |
367 | if (len < sizeof (LONGEST)) | |
368 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
369 | } | |
370 | ||
371 | switch (format) | |
372 | { | |
373 | case 'x': | |
374 | if (!size) | |
375 | { | |
675dcf4f | 376 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
377 | print_longest (stream, 'x', 1, val_long); |
378 | } | |
379 | else | |
380 | switch (size) | |
381 | { | |
382 | case 'b': | |
383 | case 'h': | |
384 | case 'w': | |
385 | case 'g': | |
386 | print_longest (stream, size, 1, val_long); | |
387 | break; | |
388 | default: | |
8a3fe4f8 | 389 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
390 | } |
391 | break; | |
392 | ||
393 | case 'd': | |
394 | print_longest (stream, 'd', 1, val_long); | |
395 | break; | |
396 | ||
397 | case 'u': | |
398 | print_longest (stream, 'u', 0, val_long); | |
399 | break; | |
400 | ||
401 | case 'o': | |
402 | if (val_long) | |
403 | print_longest (stream, 'o', 1, val_long); | |
404 | else | |
405 | fprintf_filtered (stream, "0"); | |
406 | break; | |
407 | ||
408 | case 'a': | |
593de6a6 | 409 | { |
593de6a6 | 410 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
593de6a6 PS |
411 | print_address (addr, stream); |
412 | } | |
c906108c SS |
413 | break; |
414 | ||
415 | case 'c': | |
ea37ba09 DJ |
416 | if (TYPE_UNSIGNED (type)) |
417 | { | |
418 | struct type *utype; | |
419 | ||
420 | utype = builtin_type (current_gdbarch)->builtin_true_unsigned_char; | |
421 | value_print (value_from_longest (utype, val_long), | |
422 | stream, 0, Val_pretty_default); | |
423 | } | |
424 | else | |
425 | value_print (value_from_longest (builtin_type_true_char, val_long), | |
426 | stream, 0, Val_pretty_default); | |
c906108c SS |
427 | break; |
428 | ||
429 | case 'f': | |
f4697836 | 430 | if (len == TYPE_LENGTH (builtin_type_float)) |
664cccae | 431 | type = builtin_type_float; |
f4697836 | 432 | else if (len == TYPE_LENGTH (builtin_type_double)) |
664cccae | 433 | type = builtin_type_double; |
f4697836 JB |
434 | else if (len == TYPE_LENGTH (builtin_type_long_double)) |
435 | type = builtin_type_long_double; | |
c906108c SS |
436 | print_floating (valaddr, type, stream); |
437 | break; | |
438 | ||
439 | case 0: | |
675dcf4f MK |
440 | internal_error (__FILE__, __LINE__, |
441 | _("failed internal consistency check")); | |
c906108c SS |
442 | |
443 | case 't': | |
444 | /* Binary; 't' stands for "two". */ | |
445 | { | |
c5aa993b JM |
446 | char bits[8 * (sizeof val_long) + 1]; |
447 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
448 | char *cp = bits; |
449 | int width; | |
450 | ||
c5aa993b JM |
451 | if (!size) |
452 | width = 8 * (sizeof val_long); | |
453 | else | |
454 | switch (size) | |
c906108c SS |
455 | { |
456 | case 'b': | |
457 | width = 8; | |
458 | break; | |
459 | case 'h': | |
460 | width = 16; | |
461 | break; | |
462 | case 'w': | |
463 | width = 32; | |
464 | break; | |
465 | case 'g': | |
466 | width = 64; | |
467 | break; | |
468 | default: | |
8a3fe4f8 | 469 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
470 | } |
471 | ||
c5aa993b JM |
472 | bits[width] = '\0'; |
473 | while (width-- > 0) | |
474 | { | |
475 | bits[width] = (val_long & 1) ? '1' : '0'; | |
476 | val_long >>= 1; | |
477 | } | |
c906108c SS |
478 | if (!size) |
479 | { | |
480 | while (*cp && *cp == '0') | |
481 | cp++; | |
482 | if (*cp == '\0') | |
483 | cp--; | |
484 | } | |
bb599908 | 485 | strcpy (buf, cp); |
306d9ac5 | 486 | fputs_filtered (buf, stream); |
c906108c SS |
487 | } |
488 | break; | |
489 | ||
490 | default: | |
8a3fe4f8 | 491 | error (_("Undefined output format \"%c\"."), format); |
c906108c SS |
492 | } |
493 | } | |
494 | ||
495 | /* Specify default address for `x' command. | |
675dcf4f | 496 | The `info lines' command uses this. */ |
c906108c SS |
497 | |
498 | void | |
fba45db2 | 499 | set_next_address (CORE_ADDR addr) |
c906108c SS |
500 | { |
501 | next_address = addr; | |
502 | ||
503 | /* Make address available to the user as $_. */ | |
504 | set_internalvar (lookup_internalvar ("_"), | |
4478b372 JB |
505 | value_from_pointer (lookup_pointer_type (builtin_type_void), |
506 | addr)); | |
c906108c SS |
507 | } |
508 | ||
509 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
510 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
511 | Optionally also print source file and line number, if available. | |
512 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
513 | or to interpret it as a possible C++ name and convert it back to source | |
514 | form. However note that DO_DEMANGLE can be overridden by the specific | |
515 | settings of the demangle and asm_demangle variables. */ | |
516 | ||
517 | void | |
675dcf4f MK |
518 | print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, |
519 | int do_demangle, char *leadin) | |
dfcd3bfb JM |
520 | { |
521 | char *name = NULL; | |
522 | char *filename = NULL; | |
523 | int unmapped = 0; | |
524 | int offset = 0; | |
525 | int line = 0; | |
526 | ||
675dcf4f | 527 | /* Throw away both name and filename. */ |
2f9429ae AC |
528 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
529 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 530 | |
675dcf4f MK |
531 | if (build_address_symbolic (addr, do_demangle, &name, &offset, |
532 | &filename, &line, &unmapped)) | |
2f9429ae AC |
533 | { |
534 | do_cleanups (cleanup_chain); | |
535 | return; | |
536 | } | |
dfcd3bfb JM |
537 | |
538 | fputs_filtered (leadin, stream); | |
539 | if (unmapped) | |
540 | fputs_filtered ("<*", stream); | |
541 | else | |
542 | fputs_filtered ("<", stream); | |
543 | fputs_filtered (name, stream); | |
544 | if (offset != 0) | |
545 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
546 | ||
547 | /* Append source filename and line number if desired. Give specific | |
548 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
549 | if (print_symbol_filename && filename != NULL) | |
550 | { | |
551 | if (line != -1) | |
552 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
553 | else | |
554 | fprintf_filtered (stream, " in %s", filename); | |
555 | } | |
556 | if (unmapped) | |
557 | fputs_filtered ("*>", stream); | |
558 | else | |
559 | fputs_filtered (">", stream); | |
560 | ||
561 | do_cleanups (cleanup_chain); | |
562 | } | |
563 | ||
564 | /* Given an address ADDR return all the elements needed to print the | |
565 | address in a symbolic form. NAME can be mangled or not depending | |
566 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
567 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
568 | success, when all the info in the OUT paramters is valid. Return 1 | |
569 | otherwise. */ | |
570 | int | |
571 | build_address_symbolic (CORE_ADDR addr, /* IN */ | |
572 | int do_demangle, /* IN */ | |
573 | char **name, /* OUT */ | |
574 | int *offset, /* OUT */ | |
575 | char **filename, /* OUT */ | |
576 | int *line, /* OUT */ | |
577 | int *unmapped) /* OUT */ | |
c906108c SS |
578 | { |
579 | struct minimal_symbol *msymbol; | |
580 | struct symbol *symbol; | |
c906108c | 581 | CORE_ADDR name_location = 0; |
c906108c | 582 | asection *section = 0; |
dfcd3bfb JM |
583 | char *name_temp = ""; |
584 | ||
675dcf4f | 585 | /* Let's say it is unmapped. */ |
dfcd3bfb | 586 | *unmapped = 0; |
c906108c | 587 | |
dfcd3bfb | 588 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 589 | mapped. */ |
c906108c SS |
590 | if (overlay_debugging) |
591 | { | |
592 | section = find_pc_overlay (addr); | |
593 | if (pc_in_unmapped_range (addr, section)) | |
594 | { | |
dfcd3bfb | 595 | *unmapped = 1; |
c906108c SS |
596 | addr = overlay_mapped_address (addr, section); |
597 | } | |
598 | } | |
599 | ||
c906108c SS |
600 | /* First try to find the address in the symbol table, then |
601 | in the minsyms. Take the closest one. */ | |
602 | ||
603 | /* This is defective in the sense that it only finds text symbols. So | |
604 | really this is kind of pointless--we should make sure that the | |
605 | minimal symbols have everything we need (by changing that we could | |
606 | save some memory, but for many debug format--ELF/DWARF or | |
607 | anything/stabs--it would be inconvenient to eliminate those minimal | |
608 | symbols anyway). */ | |
609 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
610 | symbol = find_pc_sect_function (addr, section); | |
611 | ||
612 | if (symbol) | |
613 | { | |
614 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
406fc7fb | 615 | if (do_demangle || asm_demangle) |
de5ad195 | 616 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 617 | else |
22abf04a | 618 | name_temp = DEPRECATED_SYMBOL_NAME (symbol); |
c906108c SS |
619 | } |
620 | ||
621 | if (msymbol != NULL) | |
622 | { | |
623 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
624 | { | |
625 | /* The msymbol is closer to the address than the symbol; | |
626 | use the msymbol instead. */ | |
627 | symbol = 0; | |
c906108c | 628 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 629 | if (do_demangle || asm_demangle) |
de5ad195 | 630 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 631 | else |
22abf04a | 632 | name_temp = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
633 | } |
634 | } | |
635 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 636 | return 1; |
c906108c | 637 | |
c906108c SS |
638 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
639 | ||
640 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
641 | CORE_ADDR. But when we detect unsigned wraparound in the | |
642 | CORE_ADDR math, we ignore this test and print the offset, | |
643 | because addr+max_symbolic_offset has wrapped through the end | |
644 | of the address space back to the beginning, giving bogus comparison. */ | |
645 | if (addr > name_location + max_symbolic_offset | |
646 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 647 | return 1; |
c906108c | 648 | |
dfcd3bfb JM |
649 | *offset = addr - name_location; |
650 | ||
651 | *name = xstrdup (name_temp); | |
c906108c | 652 | |
c906108c SS |
653 | if (print_symbol_filename) |
654 | { | |
655 | struct symtab_and_line sal; | |
656 | ||
657 | sal = find_pc_sect_line (addr, section, 0); | |
658 | ||
659 | if (sal.symtab) | |
dfcd3bfb JM |
660 | { |
661 | *filename = xstrdup (sal.symtab->filename); | |
662 | *line = sal.line; | |
663 | } | |
c906108c | 664 | } |
dfcd3bfb | 665 | return 0; |
c906108c SS |
666 | } |
667 | ||
c906108c SS |
668 | /* Print address ADDR on STREAM. USE_LOCAL means the same thing as for |
669 | print_longest. */ | |
670 | void | |
66bf4b3a AC |
671 | deprecated_print_address_numeric (CORE_ADDR addr, int use_local, |
672 | struct ui_file *stream) | |
c906108c | 673 | { |
66bf4b3a AC |
674 | if (use_local) |
675 | fputs_filtered (paddress (addr), stream); | |
676 | else | |
677 | { | |
17a912b6 | 678 | int addr_bit = gdbarch_addr_bit (current_gdbarch); |
66bf4b3a AC |
679 | |
680 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
681 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
682 | print_longest (stream, 'x', 0, (ULONGEST) addr); | |
683 | } | |
c906108c SS |
684 | } |
685 | ||
686 | /* Print address ADDR symbolically on STREAM. | |
687 | First print it as a number. Then perhaps print | |
688 | <SYMBOL + OFFSET> after the number. */ | |
689 | ||
690 | void | |
fba45db2 | 691 | print_address (CORE_ADDR addr, struct ui_file *stream) |
c906108c | 692 | { |
66bf4b3a | 693 | deprecated_print_address_numeric (addr, 1, stream); |
c906108c SS |
694 | print_address_symbolic (addr, stream, asm_demangle, " "); |
695 | } | |
696 | ||
697 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
698 | controls whether to print the symbolic name "raw" or demangled. | |
699 | Global setting "addressprint" controls whether to print hex address | |
700 | or not. */ | |
701 | ||
702 | void | |
675dcf4f MK |
703 | print_address_demangle (CORE_ADDR addr, struct ui_file *stream, |
704 | int do_demangle) | |
c906108c SS |
705 | { |
706 | if (addr == 0) | |
707 | { | |
708 | fprintf_filtered (stream, "0"); | |
709 | } | |
710 | else if (addressprint) | |
711 | { | |
66bf4b3a | 712 | deprecated_print_address_numeric (addr, 1, stream); |
c906108c SS |
713 | print_address_symbolic (addr, stream, do_demangle, " "); |
714 | } | |
715 | else | |
716 | { | |
717 | print_address_symbolic (addr, stream, do_demangle, ""); | |
718 | } | |
719 | } | |
720 | \f | |
721 | ||
722 | /* These are the types that $__ will get after an examine command of one | |
723 | of these sizes. */ | |
724 | ||
725 | static struct type *examine_i_type; | |
726 | ||
727 | static struct type *examine_b_type; | |
728 | static struct type *examine_h_type; | |
729 | static struct type *examine_w_type; | |
730 | static struct type *examine_g_type; | |
731 | ||
732 | /* Examine data at address ADDR in format FMT. | |
733 | Fetch it from memory and print on gdb_stdout. */ | |
734 | ||
735 | static void | |
00a4c844 | 736 | do_examine (struct format_data fmt, CORE_ADDR addr) |
c906108c | 737 | { |
52f0bd74 AC |
738 | char format = 0; |
739 | char size; | |
740 | int count = 1; | |
c906108c | 741 | struct type *val_type = NULL; |
52f0bd74 AC |
742 | int i; |
743 | int maxelts; | |
c906108c SS |
744 | |
745 | format = fmt.format; | |
746 | size = fmt.size; | |
747 | count = fmt.count; | |
748 | next_address = addr; | |
c906108c SS |
749 | |
750 | /* String or instruction format implies fetch single bytes | |
751 | regardless of the specified size. */ | |
752 | if (format == 's' || format == 'i') | |
753 | size = 'b'; | |
754 | ||
755 | if (format == 'i') | |
756 | val_type = examine_i_type; | |
757 | else if (size == 'b') | |
758 | val_type = examine_b_type; | |
759 | else if (size == 'h') | |
760 | val_type = examine_h_type; | |
761 | else if (size == 'w') | |
762 | val_type = examine_w_type; | |
763 | else if (size == 'g') | |
764 | val_type = examine_g_type; | |
765 | ||
766 | maxelts = 8; | |
767 | if (size == 'w') | |
768 | maxelts = 4; | |
769 | if (size == 'g') | |
770 | maxelts = 2; | |
771 | if (format == 's' || format == 'i') | |
772 | maxelts = 1; | |
773 | ||
774 | /* Print as many objects as specified in COUNT, at most maxelts per line, | |
775 | with the address of the next one at the start of each line. */ | |
776 | ||
777 | while (count > 0) | |
778 | { | |
779 | QUIT; | |
780 | print_address (next_address, gdb_stdout); | |
781 | printf_filtered (":"); | |
782 | for (i = maxelts; | |
783 | i > 0 && count > 0; | |
784 | i--, count--) | |
785 | { | |
786 | printf_filtered ("\t"); | |
787 | /* Note that print_formatted sets next_address for the next | |
788 | object. */ | |
789 | last_examine_address = next_address; | |
790 | ||
791 | if (last_examine_value) | |
792 | value_free (last_examine_value); | |
793 | ||
794 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
795 | Instead, to avoid the possibility of a fetched value not |
796 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
797 | uses it. When examining an instruction stream, the |
798 | disassembler will perform its own memory fetch using just | |
799 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
800 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
801 | is left with the byte sequence from the last complete | |
802 | instruction fetched from memory? */ | |
00a4c844 | 803 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
804 | |
805 | if (last_examine_value) | |
806 | release_value (last_examine_value); | |
807 | ||
2acceee2 | 808 | print_formatted (last_examine_value, format, size, gdb_stdout); |
a4642986 MR |
809 | |
810 | /* Display any branch delay slots following the final insn. */ | |
811 | if (format == 'i' && count == 1) | |
812 | count += branch_delay_insns; | |
c906108c SS |
813 | } |
814 | printf_filtered ("\n"); | |
815 | gdb_flush (gdb_stdout); | |
816 | } | |
817 | } | |
818 | \f | |
819 | static void | |
fba45db2 | 820 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
821 | { |
822 | if (fmt.size != 0) | |
8a3fe4f8 | 823 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 824 | if (fmt.count != 1) |
8a3fe4f8 | 825 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 826 | cmdname); |
ea37ba09 | 827 | if (fmt.format == 'i') |
8a3fe4f8 | 828 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
829 | fmt.format, cmdname); |
830 | } | |
831 | ||
675dcf4f | 832 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 833 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 834 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
835 | |
836 | static void | |
fba45db2 | 837 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
838 | { |
839 | struct expression *expr; | |
52f0bd74 AC |
840 | struct cleanup *old_chain = 0; |
841 | char format = 0; | |
3d6d86c6 | 842 | struct value *val; |
c906108c SS |
843 | struct format_data fmt; |
844 | int cleanup = 0; | |
845 | ||
675dcf4f MK |
846 | /* Pass inspect flag to the rest of the print routines in a global |
847 | (sigh). */ | |
c906108c SS |
848 | inspect_it = inspect; |
849 | ||
850 | if (exp && *exp == '/') | |
851 | { | |
852 | exp++; | |
853 | fmt = decode_format (&exp, last_format, 0); | |
854 | validate_format (fmt, "print"); | |
855 | last_format = format = fmt.format; | |
856 | } | |
857 | else | |
858 | { | |
859 | fmt.count = 1; | |
860 | fmt.format = 0; | |
861 | fmt.size = 0; | |
862 | } | |
863 | ||
864 | if (exp && *exp) | |
865 | { | |
c906108c SS |
866 | struct type *type; |
867 | expr = parse_expression (exp); | |
c13c43fd | 868 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
869 | cleanup = 1; |
870 | val = evaluate_expression (expr); | |
c906108c SS |
871 | } |
872 | else | |
873 | val = access_value_history (0); | |
874 | ||
df407dfe AC |
875 | if (voidprint || (val && value_type (val) && |
876 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c SS |
877 | { |
878 | int histindex = record_latest_value (val); | |
879 | ||
880 | if (histindex >= 0) | |
df407dfe | 881 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 882 | else |
df407dfe | 883 | annotate_value_begin (value_type (val)); |
c906108c SS |
884 | |
885 | if (inspect) | |
675dcf4f MK |
886 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
887 | exp, histindex); | |
c5aa993b JM |
888 | else if (histindex >= 0) |
889 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
890 | |
891 | if (histindex >= 0) | |
892 | annotate_value_history_value (); | |
893 | ||
2acceee2 | 894 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
895 | printf_filtered ("\n"); |
896 | ||
897 | if (histindex >= 0) | |
898 | annotate_value_history_end (); | |
899 | else | |
900 | annotate_value_end (); | |
901 | ||
902 | if (inspect) | |
c5aa993b | 903 | printf_unfiltered ("\") )\030"); |
c906108c SS |
904 | } |
905 | ||
906 | if (cleanup) | |
907 | do_cleanups (old_chain); | |
675dcf4f | 908 | inspect_it = 0; /* Reset print routines to normal. */ |
c906108c SS |
909 | } |
910 | ||
c906108c | 911 | static void |
fba45db2 | 912 | print_command (char *exp, int from_tty) |
c906108c SS |
913 | { |
914 | print_command_1 (exp, 0, 1); | |
915 | } | |
916 | ||
675dcf4f | 917 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 918 | static void |
fba45db2 | 919 | inspect_command (char *exp, int from_tty) |
c906108c SS |
920 | { |
921 | extern int epoch_interface; | |
922 | ||
923 | print_command_1 (exp, epoch_interface, 1); | |
924 | } | |
925 | ||
675dcf4f | 926 | /* Same as print, except it doesn't print void results. */ |
c906108c | 927 | static void |
fba45db2 | 928 | call_command (char *exp, int from_tty) |
c906108c SS |
929 | { |
930 | print_command_1 (exp, 0, 0); | |
931 | } | |
932 | ||
c906108c | 933 | void |
fba45db2 | 934 | output_command (char *exp, int from_tty) |
c906108c SS |
935 | { |
936 | struct expression *expr; | |
52f0bd74 AC |
937 | struct cleanup *old_chain; |
938 | char format = 0; | |
3d6d86c6 | 939 | struct value *val; |
c906108c SS |
940 | struct format_data fmt; |
941 | ||
777ea8f1 DJ |
942 | fmt.size = 0; |
943 | ||
c906108c SS |
944 | if (exp && *exp == '/') |
945 | { | |
946 | exp++; | |
947 | fmt = decode_format (&exp, 0, 0); | |
948 | validate_format (fmt, "output"); | |
949 | format = fmt.format; | |
950 | } | |
951 | ||
952 | expr = parse_expression (exp); | |
c13c43fd | 953 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
954 | |
955 | val = evaluate_expression (expr); | |
956 | ||
df407dfe | 957 | annotate_value_begin (value_type (val)); |
c906108c | 958 | |
2acceee2 | 959 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
960 | |
961 | annotate_value_end (); | |
962 | ||
2acceee2 JM |
963 | wrap_here (""); |
964 | gdb_flush (gdb_stdout); | |
965 | ||
c906108c SS |
966 | do_cleanups (old_chain); |
967 | } | |
968 | ||
c906108c | 969 | static void |
fba45db2 | 970 | set_command (char *exp, int from_tty) |
c906108c SS |
971 | { |
972 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 973 | struct cleanup *old_chain = |
c13c43fd | 974 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
975 | evaluate_expression (expr); |
976 | do_cleanups (old_chain); | |
977 | } | |
978 | ||
c906108c | 979 | static void |
fba45db2 | 980 | sym_info (char *arg, int from_tty) |
c906108c SS |
981 | { |
982 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
983 | struct objfile *objfile; |
984 | struct obj_section *osect; | |
985 | asection *sect; | |
986 | CORE_ADDR addr, sect_addr; | |
987 | int matches = 0; | |
988 | unsigned int offset; | |
c906108c SS |
989 | |
990 | if (!arg) | |
e2e0b3e5 | 991 | error_no_arg (_("address")); |
c906108c SS |
992 | |
993 | addr = parse_and_eval_address (arg); | |
994 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 995 | { |
94277a38 DJ |
996 | /* Only process each object file once, even if there's a separate |
997 | debug file. */ | |
998 | if (objfile->separate_debug_objfile_backlink) | |
999 | continue; | |
1000 | ||
c5aa993b JM |
1001 | sect = osect->the_bfd_section; |
1002 | sect_addr = overlay_mapped_address (addr, sect); | |
c906108c | 1003 | |
c5aa993b JM |
1004 | if (osect->addr <= sect_addr && sect_addr < osect->endaddr && |
1005 | (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, sect))) | |
1006 | { | |
1007 | matches = 1; | |
1008 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
1009 | if (offset) | |
1010 | printf_filtered ("%s + %u in ", | |
de5ad195 | 1011 | SYMBOL_PRINT_NAME (msymbol), offset); |
c5aa993b JM |
1012 | else |
1013 | printf_filtered ("%s in ", | |
de5ad195 | 1014 | SYMBOL_PRINT_NAME (msymbol)); |
c5aa993b | 1015 | if (pc_in_unmapped_range (addr, sect)) |
a3f17187 | 1016 | printf_filtered (_("load address range of ")); |
c5aa993b | 1017 | if (section_is_overlay (sect)) |
a3f17187 | 1018 | printf_filtered (_("%s overlay "), |
c5aa993b | 1019 | section_is_mapped (sect) ? "mapped" : "unmapped"); |
a3f17187 | 1020 | printf_filtered (_("section %s"), sect->name); |
c5aa993b JM |
1021 | printf_filtered ("\n"); |
1022 | } | |
1023 | } | |
c906108c | 1024 | if (matches == 0) |
a3f17187 | 1025 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1026 | } |
1027 | ||
c906108c | 1028 | static void |
fba45db2 | 1029 | address_info (char *exp, int from_tty) |
c906108c | 1030 | { |
52f0bd74 AC |
1031 | struct symbol *sym; |
1032 | struct minimal_symbol *msymbol; | |
1033 | long val; | |
1034 | long basereg; | |
c906108c SS |
1035 | asection *section; |
1036 | CORE_ADDR load_addr; | |
1037 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1038 | if exp is a field of `this'. */ | |
1039 | ||
1040 | if (exp == 0) | |
8a3fe4f8 | 1041 | error (_("Argument required.")); |
c906108c | 1042 | |
176620f1 | 1043 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
c5aa993b | 1044 | &is_a_field_of_this, (struct symtab **) NULL); |
c906108c SS |
1045 | if (sym == NULL) |
1046 | { | |
1047 | if (is_a_field_of_this) | |
1048 | { | |
1049 | printf_filtered ("Symbol \""); | |
1050 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1051 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1052 | printf_filtered ("\" is a field of the local class variable "); |
1053 | if (current_language->la_language == language_objc) | |
2625d86c | 1054 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1055 | else |
2625d86c | 1056 | printf_filtered ("`this'\n"); |
c906108c SS |
1057 | return; |
1058 | } | |
1059 | ||
1060 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1061 | ||
1062 | if (msymbol != NULL) | |
1063 | { | |
1064 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1065 | ||
1066 | printf_filtered ("Symbol \""); | |
1067 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1068 | current_language->la_language, DMGL_ANSI); | |
1069 | printf_filtered ("\" is at "); | |
66bf4b3a | 1070 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
c906108c SS |
1071 | printf_filtered (" in a file compiled without debugging"); |
1072 | section = SYMBOL_BFD_SECTION (msymbol); | |
1073 | if (section_is_overlay (section)) | |
1074 | { | |
1075 | load_addr = overlay_unmapped_address (load_addr, section); | |
1076 | printf_filtered (",\n -- loaded at "); | |
66bf4b3a | 1077 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
c906108c SS |
1078 | printf_filtered (" in overlay section %s", section->name); |
1079 | } | |
1080 | printf_filtered (".\n"); | |
1081 | } | |
1082 | else | |
8a3fe4f8 | 1083 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1084 | return; |
1085 | } | |
1086 | ||
1087 | printf_filtered ("Symbol \""); | |
22abf04a | 1088 | fprintf_symbol_filtered (gdb_stdout, DEPRECATED_SYMBOL_NAME (sym), |
c906108c SS |
1089 | current_language->la_language, DMGL_ANSI); |
1090 | printf_filtered ("\" is "); | |
c5aa993b | 1091 | val = SYMBOL_VALUE (sym); |
c906108c SS |
1092 | basereg = SYMBOL_BASEREG (sym); |
1093 | section = SYMBOL_BFD_SECTION (sym); | |
1094 | ||
1095 | switch (SYMBOL_CLASS (sym)) | |
1096 | { | |
1097 | case LOC_CONST: | |
1098 | case LOC_CONST_BYTES: | |
1099 | printf_filtered ("constant"); | |
1100 | break; | |
1101 | ||
1102 | case LOC_LABEL: | |
1103 | printf_filtered ("a label at address "); | |
66bf4b3a | 1104 | deprecated_print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1105 | 1, gdb_stdout); |
1106 | if (section_is_overlay (section)) | |
1107 | { | |
1108 | load_addr = overlay_unmapped_address (load_addr, section); | |
1109 | printf_filtered (",\n -- loaded at "); | |
66bf4b3a | 1110 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
c906108c SS |
1111 | printf_filtered (" in overlay section %s", section->name); |
1112 | } | |
1113 | break; | |
1114 | ||
4c2df51b DJ |
1115 | case LOC_COMPUTED: |
1116 | case LOC_COMPUTED_ARG: | |
a67af2b9 AC |
1117 | /* FIXME: cagney/2004-01-26: It should be possible to |
1118 | unconditionally call the SYMBOL_OPS method when available. | |
d3efc286 | 1119 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1120 | function) location in a function's symbol. Oops! For the |
1121 | moment enable this when/where applicable. */ | |
1122 | SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout); | |
4c2df51b DJ |
1123 | break; |
1124 | ||
c906108c | 1125 | case LOC_REGISTER: |
c9f4d572 UW |
1126 | printf_filtered (_("a variable in register %s"), |
1127 | gdbarch_register_name (current_gdbarch, val)); | |
c906108c SS |
1128 | break; |
1129 | ||
1130 | case LOC_STATIC: | |
a3f17187 | 1131 | printf_filtered (_("static storage at address ")); |
66bf4b3a | 1132 | deprecated_print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1133 | 1, gdb_stdout); |
1134 | if (section_is_overlay (section)) | |
1135 | { | |
1136 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1137 | printf_filtered (_(",\n -- loaded at ")); |
66bf4b3a | 1138 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
a3f17187 | 1139 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1140 | } |
1141 | break; | |
1142 | ||
1143 | case LOC_INDIRECT: | |
a3f17187 | 1144 | printf_filtered (_("external global (indirect addressing), at address *(")); |
66bf4b3a | 1145 | deprecated_print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1146 | 1, gdb_stdout); |
1147 | printf_filtered (")"); | |
1148 | if (section_is_overlay (section)) | |
1149 | { | |
1150 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1151 | printf_filtered (_(",\n -- loaded at ")); |
66bf4b3a | 1152 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
a3f17187 | 1153 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1154 | } |
1155 | break; | |
1156 | ||
1157 | case LOC_REGPARM: | |
c9f4d572 UW |
1158 | printf_filtered (_("an argument in register %s"), |
1159 | gdbarch_register_name (current_gdbarch, val)); | |
c906108c SS |
1160 | break; |
1161 | ||
1162 | case LOC_REGPARM_ADDR: | |
675dcf4f | 1163 | printf_filtered (_("address of an argument in register %s"), |
c9f4d572 | 1164 | gdbarch_register_name (current_gdbarch, val)); |
c906108c SS |
1165 | break; |
1166 | ||
1167 | case LOC_ARG: | |
a3f17187 | 1168 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1169 | break; |
1170 | ||
1171 | case LOC_LOCAL_ARG: | |
a3f17187 | 1172 | printf_filtered (_("an argument at frame offset %ld"), val); |
c906108c SS |
1173 | break; |
1174 | ||
1175 | case LOC_LOCAL: | |
a3f17187 | 1176 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1177 | break; |
1178 | ||
1179 | case LOC_REF_ARG: | |
a3f17187 | 1180 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1181 | break; |
1182 | ||
1183 | case LOC_BASEREG: | |
a3f17187 | 1184 | printf_filtered (_("a variable at offset %ld from register %s"), |
c9f4d572 | 1185 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1186 | break; |
1187 | ||
1188 | case LOC_BASEREG_ARG: | |
a3f17187 | 1189 | printf_filtered (_("an argument at offset %ld from register %s"), |
c9f4d572 | 1190 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1191 | break; |
1192 | ||
1193 | case LOC_TYPEDEF: | |
a3f17187 | 1194 | printf_filtered (_("a typedef")); |
c906108c SS |
1195 | break; |
1196 | ||
1197 | case LOC_BLOCK: | |
a3f17187 | 1198 | printf_filtered (_("a function at address ")); |
675dcf4f MK |
1199 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
1200 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); | |
c906108c SS |
1201 | if (section_is_overlay (section)) |
1202 | { | |
1203 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1204 | printf_filtered (_(",\n -- loaded at ")); |
66bf4b3a | 1205 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
a3f17187 | 1206 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1207 | } |
1208 | break; | |
1209 | ||
1210 | case LOC_UNRESOLVED: | |
1211 | { | |
1212 | struct minimal_symbol *msym; | |
1213 | ||
22abf04a | 1214 | msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym), NULL, NULL); |
c906108c SS |
1215 | if (msym == NULL) |
1216 | printf_filtered ("unresolved"); | |
1217 | else | |
1218 | { | |
1219 | section = SYMBOL_BFD_SECTION (msym); | |
a3f17187 | 1220 | printf_filtered (_("static storage at address ")); |
675dcf4f MK |
1221 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
1222 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); | |
c906108c SS |
1223 | if (section_is_overlay (section)) |
1224 | { | |
1225 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1226 | printf_filtered (_(",\n -- loaded at ")); |
66bf4b3a | 1227 | deprecated_print_address_numeric (load_addr, 1, gdb_stdout); |
a3f17187 | 1228 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1229 | } |
1230 | } | |
1231 | } | |
1232 | break; | |
1233 | ||
407caf07 | 1234 | case LOC_HP_THREAD_LOCAL_STATIC: |
675dcf4f MK |
1235 | printf_filtered (_("\ |
1236 | a thread-local variable at offset %ld from the thread base register %s"), | |
c9f4d572 | 1237 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1238 | break; |
1239 | ||
1240 | case LOC_OPTIMIZED_OUT: | |
a3f17187 | 1241 | printf_filtered (_("optimized out")); |
c906108c | 1242 | break; |
c5aa993b | 1243 | |
c906108c | 1244 | default: |
a3f17187 | 1245 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1246 | break; |
1247 | } | |
1248 | printf_filtered (".\n"); | |
1249 | } | |
1250 | \f | |
675dcf4f MK |
1251 | |
1252 | static void | |
fba45db2 | 1253 | x_command (char *exp, int from_tty) |
c906108c SS |
1254 | { |
1255 | struct expression *expr; | |
1256 | struct format_data fmt; | |
1257 | struct cleanup *old_chain; | |
1258 | struct value *val; | |
1259 | ||
1260 | fmt.format = last_format; | |
1261 | fmt.size = last_size; | |
1262 | fmt.count = 1; | |
1263 | ||
1264 | if (exp && *exp == '/') | |
1265 | { | |
1266 | exp++; | |
1267 | fmt = decode_format (&exp, last_format, last_size); | |
1268 | } | |
1269 | ||
1270 | /* If we have an expression, evaluate it and use it as the address. */ | |
1271 | ||
1272 | if (exp != 0 && *exp != 0) | |
1273 | { | |
1274 | expr = parse_expression (exp); | |
675dcf4f MK |
1275 | /* Cause expression not to be there any more if this command is |
1276 | repeated with Newline. But don't clobber a user-defined | |
1277 | command's definition. */ | |
c906108c SS |
1278 | if (from_tty) |
1279 | *exp = 0; | |
c13c43fd | 1280 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1281 | val = evaluate_expression (expr); |
df407dfe | 1282 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1283 | val = value_ind (val); |
1284 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1285 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1286 | if (/* last_format == 'i' && */ |
df407dfe | 1287 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1288 | && VALUE_LVAL (val) == lval_memory) |
c906108c SS |
1289 | next_address = VALUE_ADDRESS (val); |
1290 | else | |
1aa20aa8 | 1291 | next_address = value_as_address (val); |
c906108c SS |
1292 | do_cleanups (old_chain); |
1293 | } | |
1294 | ||
00a4c844 | 1295 | do_examine (fmt, next_address); |
c906108c | 1296 | |
675dcf4f MK |
1297 | /* If the examine succeeds, we remember its size and format for next |
1298 | time. */ | |
c906108c SS |
1299 | last_size = fmt.size; |
1300 | last_format = fmt.format; | |
1301 | ||
1302 | /* Set a couple of internal variables if appropriate. */ | |
1303 | if (last_examine_value) | |
1304 | { | |
1305 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1306 | the correct pointer type. */ |
4478b372 | 1307 | struct type *pointer_type |
df407dfe | 1308 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1309 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1310 | value_from_pointer (pointer_type, |
1311 | last_examine_address)); | |
c5aa993b | 1312 | |
675dcf4f MK |
1313 | /* Make contents of last address examined available to the user |
1314 | as $__. If the last value has not been fetched from memory | |
1315 | then don't fetch it now; instead mark it by voiding the $__ | |
1316 | variable. */ | |
d69fe07e | 1317 | if (value_lazy (last_examine_value)) |
c906108c SS |
1318 | set_internalvar (lookup_internalvar ("__"), |
1319 | allocate_value (builtin_type_void)); | |
1320 | else | |
1321 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1322 | } | |
1323 | } | |
c906108c | 1324 | \f |
c5aa993b | 1325 | |
c906108c SS |
1326 | /* Add an expression to the auto-display chain. |
1327 | Specify the expression. */ | |
1328 | ||
1329 | static void | |
fba45db2 | 1330 | display_command (char *exp, int from_tty) |
c906108c SS |
1331 | { |
1332 | struct format_data fmt; | |
52f0bd74 AC |
1333 | struct expression *expr; |
1334 | struct display *new; | |
c906108c SS |
1335 | int display_it = 1; |
1336 | ||
1337 | #if defined(TUI) | |
021e7609 AC |
1338 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1339 | `tui_version'. */ | |
fd33e6cb | 1340 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1341 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1342 | #endif |
1343 | ||
1344 | if (display_it) | |
1345 | { | |
1346 | if (exp == 0) | |
1347 | { | |
1348 | do_displays (); | |
1349 | return; | |
1350 | } | |
1351 | ||
1352 | if (*exp == '/') | |
1353 | { | |
1354 | exp++; | |
1355 | fmt = decode_format (&exp, 0, 0); | |
1356 | if (fmt.size && fmt.format == 0) | |
1357 | fmt.format = 'x'; | |
1358 | if (fmt.format == 'i' || fmt.format == 's') | |
1359 | fmt.size = 'b'; | |
1360 | } | |
1361 | else | |
1362 | { | |
1363 | fmt.format = 0; | |
1364 | fmt.size = 0; | |
1365 | fmt.count = 0; | |
1366 | } | |
1367 | ||
1368 | innermost_block = 0; | |
1369 | expr = parse_expression (exp); | |
1370 | ||
1371 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1372 | ||
1373 | new->exp = expr; | |
1374 | new->block = innermost_block; | |
1375 | new->next = display_chain; | |
1376 | new->number = ++display_number; | |
1377 | new->format = fmt; | |
b5de0fa7 | 1378 | new->enabled_p = 1; |
c906108c SS |
1379 | display_chain = new; |
1380 | ||
1381 | if (from_tty && target_has_execution) | |
1382 | do_one_display (new); | |
1383 | ||
1384 | dont_repeat (); | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | static void | |
fba45db2 | 1389 | free_display (struct display *d) |
c906108c | 1390 | { |
b8c9b27d KB |
1391 | xfree (d->exp); |
1392 | xfree (d); | |
c906108c SS |
1393 | } |
1394 | ||
675dcf4f MK |
1395 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1396 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1397 | |
1398 | void | |
fba45db2 | 1399 | clear_displays (void) |
c906108c | 1400 | { |
52f0bd74 | 1401 | struct display *d; |
c906108c SS |
1402 | |
1403 | while ((d = display_chain) != NULL) | |
1404 | { | |
b8c9b27d | 1405 | xfree (d->exp); |
c906108c | 1406 | display_chain = d->next; |
b8c9b27d | 1407 | xfree (d); |
c906108c SS |
1408 | } |
1409 | } | |
1410 | ||
1411 | /* Delete the auto-display number NUM. */ | |
1412 | ||
1413 | static void | |
fba45db2 | 1414 | delete_display (int num) |
c906108c | 1415 | { |
52f0bd74 | 1416 | struct display *d1, *d; |
c906108c SS |
1417 | |
1418 | if (!display_chain) | |
8a3fe4f8 | 1419 | error (_("No display number %d."), num); |
c906108c SS |
1420 | |
1421 | if (display_chain->number == num) | |
1422 | { | |
1423 | d1 = display_chain; | |
1424 | display_chain = d1->next; | |
1425 | free_display (d1); | |
1426 | } | |
1427 | else | |
c5aa993b | 1428 | for (d = display_chain;; d = d->next) |
c906108c SS |
1429 | { |
1430 | if (d->next == 0) | |
8a3fe4f8 | 1431 | error (_("No display number %d."), num); |
c906108c SS |
1432 | if (d->next->number == num) |
1433 | { | |
1434 | d1 = d->next; | |
1435 | d->next = d1->next; | |
1436 | free_display (d1); | |
1437 | break; | |
1438 | } | |
1439 | } | |
1440 | } | |
1441 | ||
1442 | /* Delete some values from the auto-display chain. | |
1443 | Specify the element numbers. */ | |
1444 | ||
1445 | static void | |
fba45db2 | 1446 | undisplay_command (char *args, int from_tty) |
c906108c | 1447 | { |
52f0bd74 AC |
1448 | char *p = args; |
1449 | char *p1; | |
1450 | int num; | |
c906108c SS |
1451 | |
1452 | if (args == 0) | |
1453 | { | |
1454 | if (query ("Delete all auto-display expressions? ")) | |
1455 | clear_displays (); | |
1456 | dont_repeat (); | |
1457 | return; | |
1458 | } | |
1459 | ||
1460 | while (*p) | |
1461 | { | |
1462 | p1 = p; | |
c5aa993b JM |
1463 | while (*p1 >= '0' && *p1 <= '9') |
1464 | p1++; | |
c906108c | 1465 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1466 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1467 | |
1468 | num = atoi (p); | |
1469 | ||
1470 | delete_display (num); | |
1471 | ||
1472 | p = p1; | |
c5aa993b JM |
1473 | while (*p == ' ' || *p == '\t') |
1474 | p++; | |
c906108c SS |
1475 | } |
1476 | dont_repeat (); | |
1477 | } | |
1478 | ||
1479 | /* Display a single auto-display. | |
1480 | Do nothing if the display cannot be printed in the current context, | |
1481 | or if the display is disabled. */ | |
1482 | ||
1483 | static void | |
fba45db2 | 1484 | do_one_display (struct display *d) |
c906108c SS |
1485 | { |
1486 | int within_current_scope; | |
1487 | ||
b5de0fa7 | 1488 | if (d->enabled_p == 0) |
c906108c SS |
1489 | return; |
1490 | ||
1491 | if (d->block) | |
ae767bfb | 1492 | within_current_scope = contained_in (get_selected_block (0), d->block); |
c906108c SS |
1493 | else |
1494 | within_current_scope = 1; | |
1495 | if (!within_current_scope) | |
1496 | return; | |
1497 | ||
1498 | current_display_number = d->number; | |
1499 | ||
1500 | annotate_display_begin (); | |
1501 | printf_filtered ("%d", d->number); | |
1502 | annotate_display_number_end (); | |
1503 | printf_filtered (": "); | |
1504 | if (d->format.size) | |
1505 | { | |
1506 | CORE_ADDR addr; | |
3d6d86c6 | 1507 | struct value *val; |
c906108c SS |
1508 | |
1509 | annotate_display_format (); | |
1510 | ||
1511 | printf_filtered ("x/"); | |
1512 | if (d->format.count != 1) | |
1513 | printf_filtered ("%d", d->format.count); | |
1514 | printf_filtered ("%c", d->format.format); | |
1515 | if (d->format.format != 'i' && d->format.format != 's') | |
1516 | printf_filtered ("%c", d->format.size); | |
1517 | printf_filtered (" "); | |
1518 | ||
1519 | annotate_display_expression (); | |
1520 | ||
1521 | print_expression (d->exp, gdb_stdout); | |
1522 | annotate_display_expression_end (); | |
1523 | ||
6a2eb474 | 1524 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1525 | printf_filtered ("\n"); |
1526 | else | |
1527 | printf_filtered (" "); | |
c5aa993b | 1528 | |
c906108c | 1529 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1530 | addr = value_as_address (val); |
c906108c | 1531 | if (d->format.format == 'i') |
bf6ae464 | 1532 | addr = gdbarch_addr_bits_remove (current_gdbarch, addr); |
c906108c SS |
1533 | |
1534 | annotate_display_value (); | |
1535 | ||
00a4c844 | 1536 | do_examine (d->format, addr); |
c906108c SS |
1537 | } |
1538 | else | |
1539 | { | |
1540 | annotate_display_format (); | |
1541 | ||
1542 | if (d->format.format) | |
1543 | printf_filtered ("/%c ", d->format.format); | |
1544 | ||
1545 | annotate_display_expression (); | |
1546 | ||
1547 | print_expression (d->exp, gdb_stdout); | |
1548 | annotate_display_expression_end (); | |
1549 | ||
1550 | printf_filtered (" = "); | |
1551 | ||
1552 | annotate_display_expression (); | |
1553 | ||
1554 | print_formatted (evaluate_expression (d->exp), | |
2acceee2 | 1555 | d->format.format, d->format.size, gdb_stdout); |
c906108c SS |
1556 | printf_filtered ("\n"); |
1557 | } | |
1558 | ||
1559 | annotate_display_end (); | |
1560 | ||
1561 | gdb_flush (gdb_stdout); | |
1562 | current_display_number = -1; | |
1563 | } | |
1564 | ||
1565 | /* Display all of the values on the auto-display chain which can be | |
1566 | evaluated in the current scope. */ | |
1567 | ||
1568 | void | |
fba45db2 | 1569 | do_displays (void) |
c906108c | 1570 | { |
52f0bd74 | 1571 | struct display *d; |
c906108c SS |
1572 | |
1573 | for (d = display_chain; d; d = d->next) | |
1574 | do_one_display (d); | |
1575 | } | |
1576 | ||
1577 | /* Delete the auto-display which we were in the process of displaying. | |
1578 | This is done when there is an error or a signal. */ | |
1579 | ||
1580 | void | |
fba45db2 | 1581 | disable_display (int num) |
c906108c | 1582 | { |
52f0bd74 | 1583 | struct display *d; |
c906108c SS |
1584 | |
1585 | for (d = display_chain; d; d = d->next) | |
1586 | if (d->number == num) | |
1587 | { | |
b5de0fa7 | 1588 | d->enabled_p = 0; |
c906108c SS |
1589 | return; |
1590 | } | |
a3f17187 | 1591 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1592 | } |
c5aa993b | 1593 | |
c906108c | 1594 | void |
fba45db2 | 1595 | disable_current_display (void) |
c906108c SS |
1596 | { |
1597 | if (current_display_number >= 0) | |
1598 | { | |
1599 | disable_display (current_display_number); | |
675dcf4f MK |
1600 | fprintf_unfiltered (gdb_stderr, _("\ |
1601 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1602 | current_display_number); |
c906108c SS |
1603 | } |
1604 | current_display_number = -1; | |
1605 | } | |
1606 | ||
1607 | static void | |
fba45db2 | 1608 | display_info (char *ignore, int from_tty) |
c906108c | 1609 | { |
52f0bd74 | 1610 | struct display *d; |
c906108c SS |
1611 | |
1612 | if (!display_chain) | |
a3f17187 | 1613 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1614 | else |
a3f17187 AC |
1615 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1616 | Num Enb Expression\n")); | |
c906108c SS |
1617 | |
1618 | for (d = display_chain; d; d = d->next) | |
1619 | { | |
b5de0fa7 | 1620 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1621 | if (d->format.size) |
1622 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1623 | d->format.format); |
c906108c SS |
1624 | else if (d->format.format) |
1625 | printf_filtered ("/%c ", d->format.format); | |
1626 | print_expression (d->exp, gdb_stdout); | |
ae767bfb | 1627 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1628 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1629 | printf_filtered ("\n"); |
1630 | gdb_flush (gdb_stdout); | |
1631 | } | |
1632 | } | |
1633 | ||
1634 | static void | |
fba45db2 | 1635 | enable_display (char *args, int from_tty) |
c906108c | 1636 | { |
52f0bd74 AC |
1637 | char *p = args; |
1638 | char *p1; | |
1639 | int num; | |
1640 | struct display *d; | |
c906108c SS |
1641 | |
1642 | if (p == 0) | |
1643 | { | |
1644 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1645 | d->enabled_p = 1; |
c906108c SS |
1646 | } |
1647 | else | |
1648 | while (*p) | |
1649 | { | |
1650 | p1 = p; | |
1651 | while (*p1 >= '0' && *p1 <= '9') | |
1652 | p1++; | |
1653 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1654 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1655 | |
c906108c | 1656 | num = atoi (p); |
c5aa993b | 1657 | |
c906108c SS |
1658 | for (d = display_chain; d; d = d->next) |
1659 | if (d->number == num) | |
1660 | { | |
b5de0fa7 | 1661 | d->enabled_p = 1; |
c906108c SS |
1662 | goto win; |
1663 | } | |
a3f17187 | 1664 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1665 | win: |
1666 | p = p1; | |
1667 | while (*p == ' ' || *p == '\t') | |
1668 | p++; | |
1669 | } | |
1670 | } | |
1671 | ||
c906108c | 1672 | static void |
fba45db2 | 1673 | disable_display_command (char *args, int from_tty) |
c906108c | 1674 | { |
52f0bd74 AC |
1675 | char *p = args; |
1676 | char *p1; | |
1677 | struct display *d; | |
c906108c SS |
1678 | |
1679 | if (p == 0) | |
1680 | { | |
1681 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1682 | d->enabled_p = 0; |
c906108c SS |
1683 | } |
1684 | else | |
1685 | while (*p) | |
1686 | { | |
1687 | p1 = p; | |
1688 | while (*p1 >= '0' && *p1 <= '9') | |
1689 | p1++; | |
1690 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1691 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1692 | |
c906108c SS |
1693 | disable_display (atoi (p)); |
1694 | ||
1695 | p = p1; | |
1696 | while (*p == ' ' || *p == '\t') | |
1697 | p++; | |
1698 | } | |
1699 | } | |
c906108c | 1700 | \f |
c5aa993b | 1701 | |
675dcf4f MK |
1702 | /* Print the value in stack frame FRAME of a variable specified by a |
1703 | struct symbol. */ | |
c906108c SS |
1704 | |
1705 | void | |
fba45db2 KB |
1706 | print_variable_value (struct symbol *var, struct frame_info *frame, |
1707 | struct ui_file *stream) | |
c906108c | 1708 | { |
3d6d86c6 | 1709 | struct value *val = read_var_value (var, frame); |
c906108c SS |
1710 | |
1711 | value_print (val, stream, 0, Val_pretty_default); | |
1712 | } | |
1713 | ||
c906108c | 1714 | static void |
fba45db2 | 1715 | printf_command (char *arg, int from_tty) |
c906108c | 1716 | { |
52f0bd74 AC |
1717 | char *f = NULL; |
1718 | char *s = arg; | |
c906108c | 1719 | char *string = NULL; |
3d6d86c6 | 1720 | struct value **val_args; |
c906108c SS |
1721 | char *substrings; |
1722 | char *current_substring; | |
1723 | int nargs = 0; | |
1724 | int allocated_args = 20; | |
1725 | struct cleanup *old_cleanups; | |
1726 | ||
675dcf4f | 1727 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1728 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1729 | |
1730 | if (s == 0) | |
e2e0b3e5 | 1731 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1732 | |
1733 | /* Skip white space before format string */ | |
c5aa993b JM |
1734 | while (*s == ' ' || *s == '\t') |
1735 | s++; | |
c906108c | 1736 | |
675dcf4f | 1737 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1738 | if (*s++ != '"') |
8a3fe4f8 | 1739 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1740 | |
1741 | /* Parse the format-control string and copy it into the string STRING, | |
1742 | processing some kinds of escape sequence. */ | |
1743 | ||
1744 | f = string = (char *) alloca (strlen (s) + 1); | |
1745 | ||
1746 | while (*s != '"') | |
1747 | { | |
1748 | int c = *s++; | |
1749 | switch (c) | |
1750 | { | |
1751 | case '\0': | |
8a3fe4f8 | 1752 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1753 | |
1754 | case '\\': | |
1755 | switch (c = *s++) | |
1756 | { | |
1757 | case '\\': | |
1758 | *f++ = '\\'; | |
1759 | break; | |
1760 | case 'a': | |
c906108c | 1761 | *f++ = '\a'; |
c906108c SS |
1762 | break; |
1763 | case 'b': | |
1764 | *f++ = '\b'; | |
1765 | break; | |
1766 | case 'f': | |
1767 | *f++ = '\f'; | |
1768 | break; | |
1769 | case 'n': | |
1770 | *f++ = '\n'; | |
1771 | break; | |
1772 | case 'r': | |
1773 | *f++ = '\r'; | |
1774 | break; | |
1775 | case 't': | |
1776 | *f++ = '\t'; | |
1777 | break; | |
1778 | case 'v': | |
1779 | *f++ = '\v'; | |
1780 | break; | |
1781 | case '"': | |
1782 | *f++ = '"'; | |
1783 | break; | |
1784 | default: | |
1785 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 1786 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
1787 | c); |
1788 | } | |
1789 | break; | |
1790 | ||
1791 | default: | |
1792 | *f++ = c; | |
1793 | } | |
1794 | } | |
1795 | ||
1796 | /* Skip over " and following space and comma. */ | |
1797 | s++; | |
1798 | *f++ = '\0'; | |
c5aa993b JM |
1799 | while (*s == ' ' || *s == '\t') |
1800 | s++; | |
c906108c SS |
1801 | |
1802 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 1803 | error (_("Invalid argument syntax")); |
c906108c | 1804 | |
c5aa993b JM |
1805 | if (*s == ',') |
1806 | s++; | |
1807 | while (*s == ' ' || *s == '\t') | |
1808 | s++; | |
c906108c SS |
1809 | |
1810 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
1811 | substrings = alloca (strlen (string) * 2); | |
1812 | current_substring = substrings; | |
1813 | ||
1814 | { | |
1815 | /* Now scan the string for %-specs and see what kinds of args they want. | |
1816 | argclass[I] classifies the %-specs so we can give printf_filtered | |
1817 | something of the right size. */ | |
1818 | ||
c5aa993b JM |
1819 | enum argclass |
1820 | { | |
46e9880c DJ |
1821 | int_arg, long_arg, long_long_arg, ptr_arg, string_arg, |
1822 | double_arg, long_double_arg | |
c5aa993b | 1823 | }; |
c906108c SS |
1824 | enum argclass *argclass; |
1825 | enum argclass this_argclass; | |
1826 | char *last_arg; | |
1827 | int nargs_wanted; | |
c906108c SS |
1828 | int i; |
1829 | ||
1830 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
1831 | nargs_wanted = 0; | |
1832 | f = string; | |
1833 | last_arg = string; | |
1834 | while (*f) | |
1835 | if (*f++ == '%') | |
1836 | { | |
46e9880c DJ |
1837 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
1838 | int seen_space = 0, seen_plus = 0; | |
1839 | int seen_big_l = 0, seen_h = 0; | |
1840 | int bad = 0; | |
1841 | ||
1842 | /* Check the validity of the format specifier, and work | |
1843 | out what argument it expects. We only accept C89 | |
1844 | format strings, with the exception of long long (which | |
1845 | we autoconf for). */ | |
1846 | ||
1847 | /* Skip over "%%". */ | |
1848 | if (*f == '%') | |
c906108c | 1849 | { |
c906108c | 1850 | f++; |
46e9880c | 1851 | continue; |
c906108c | 1852 | } |
46e9880c DJ |
1853 | |
1854 | /* The first part of a format specifier is a set of flag | |
1855 | characters. */ | |
1856 | while (strchr ("0-+ #", *f)) | |
1857 | { | |
1858 | if (*f == '#') | |
1859 | seen_hash = 1; | |
1860 | else if (*f == '0') | |
1861 | seen_zero = 1; | |
1862 | else if (*f == ' ') | |
1863 | seen_space = 1; | |
1864 | else if (*f == '+') | |
1865 | seen_plus = 1; | |
1866 | f++; | |
1867 | } | |
1868 | ||
1869 | /* The next part of a format specifier is a width. */ | |
1870 | while (strchr ("0123456789", *f)) | |
1871 | f++; | |
1872 | ||
1873 | /* The next part of a format specifier is a precision. */ | |
1874 | if (*f == '.') | |
1875 | { | |
1876 | seen_prec = 1; | |
1877 | f++; | |
1878 | while (strchr ("0123456789", *f)) | |
1879 | f++; | |
1880 | } | |
1881 | ||
1882 | /* The next part of a format specifier is a length modifier. */ | |
1883 | if (*f == 'h') | |
1884 | { | |
1885 | seen_h = 1; | |
1886 | f++; | |
1887 | } | |
1888 | else if (*f == 'l') | |
1889 | { | |
1890 | f++; | |
1891 | lcount++; | |
1892 | if (*f == 'l') | |
1893 | { | |
1894 | f++; | |
1895 | lcount++; | |
1896 | } | |
1897 | } | |
1898 | else if (*f == 'L') | |
1899 | { | |
1900 | seen_big_l = 1; | |
1901 | f++; | |
1902 | } | |
1903 | ||
c906108c SS |
1904 | switch (*f) |
1905 | { | |
46e9880c DJ |
1906 | case 'u': |
1907 | if (seen_hash) | |
1908 | bad = 1; | |
1909 | /* FALLTHROUGH */ | |
1910 | ||
1911 | case 'o': | |
1912 | case 'x': | |
1913 | case 'X': | |
1914 | if (seen_space || seen_plus) | |
1915 | bad = 1; | |
1916 | /* FALLTHROUGH */ | |
1917 | ||
1918 | case 'd': | |
1919 | case 'i': | |
1920 | if (lcount == 0) | |
1921 | this_argclass = int_arg; | |
1922 | else if (lcount == 1) | |
1923 | this_argclass = long_arg; | |
1924 | else | |
1925 | this_argclass = long_long_arg; | |
1926 | ||
1927 | if (seen_big_l) | |
1928 | bad = 1; | |
1929 | break; | |
1930 | ||
1931 | case 'c': | |
1932 | this_argclass = int_arg; | |
1933 | if (lcount || seen_h || seen_big_l) | |
1934 | bad = 1; | |
1935 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1936 | bad = 1; | |
1937 | break; | |
1938 | ||
1939 | case 'p': | |
1940 | this_argclass = ptr_arg; | |
1941 | if (lcount || seen_h || seen_big_l) | |
1942 | bad = 1; | |
1943 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1944 | bad = 1; | |
1945 | break; | |
1946 | ||
c906108c SS |
1947 | case 's': |
1948 | this_argclass = string_arg; | |
46e9880c DJ |
1949 | if (lcount || seen_h || seen_big_l) |
1950 | bad = 1; | |
1951 | if (seen_zero || seen_space || seen_plus) | |
1952 | bad = 1; | |
c906108c SS |
1953 | break; |
1954 | ||
1955 | case 'e': | |
1956 | case 'f': | |
1957 | case 'g': | |
46e9880c DJ |
1958 | case 'E': |
1959 | case 'G': | |
1960 | if (seen_big_l) | |
1961 | this_argclass = long_double_arg; | |
1962 | else | |
1963 | this_argclass = double_arg; | |
1964 | ||
1965 | if (lcount || seen_h) | |
1966 | bad = 1; | |
c906108c SS |
1967 | break; |
1968 | ||
1969 | case '*': | |
8a3fe4f8 | 1970 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
1971 | |
1972 | case 'n': | |
8a3fe4f8 | 1973 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 1974 | |
46e9880c DJ |
1975 | case '\0': |
1976 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
1977 | |
1978 | default: | |
46e9880c | 1979 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 1980 | } |
46e9880c DJ |
1981 | |
1982 | if (bad) | |
1983 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
1984 | *f); | |
1985 | ||
c906108c | 1986 | f++; |
46e9880c DJ |
1987 | strncpy (current_substring, last_arg, f - last_arg); |
1988 | current_substring += f - last_arg; | |
1989 | *current_substring++ = '\0'; | |
1990 | last_arg = f; | |
1991 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
1992 | } |
1993 | ||
1994 | /* Now, parse all arguments and evaluate them. | |
1995 | Store the VALUEs in VAL_ARGS. */ | |
1996 | ||
1997 | while (*s != '\0') | |
1998 | { | |
1999 | char *s1; | |
2000 | if (nargs == allocated_args) | |
f976f6d4 AC |
2001 | val_args = (struct value **) xrealloc ((char *) val_args, |
2002 | (allocated_args *= 2) | |
2003 | * sizeof (struct value *)); | |
c906108c SS |
2004 | s1 = s; |
2005 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2006 | |
c906108c SS |
2007 | /* If format string wants a float, unchecked-convert the value to |
2008 | floating point of the same size */ | |
c5aa993b | 2009 | |
c906108c SS |
2010 | if (argclass[nargs] == double_arg) |
2011 | { | |
df407dfe | 2012 | struct type *type = value_type (val_args[nargs]); |
c906108c | 2013 | if (TYPE_LENGTH (type) == sizeof (float)) |
04624583 | 2014 | deprecated_set_value_type (val_args[nargs], builtin_type_float); |
c906108c | 2015 | if (TYPE_LENGTH (type) == sizeof (double)) |
04624583 | 2016 | deprecated_set_value_type (val_args[nargs], builtin_type_double); |
c906108c SS |
2017 | } |
2018 | nargs++; | |
2019 | s = s1; | |
2020 | if (*s == ',') | |
2021 | s++; | |
2022 | } | |
c5aa993b | 2023 | |
c906108c | 2024 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2025 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2026 | |
2027 | /* Now actually print them. */ | |
2028 | current_substring = substrings; | |
2029 | for (i = 0; i < nargs; i++) | |
2030 | { | |
2031 | switch (argclass[i]) | |
2032 | { | |
2033 | case string_arg: | |
2034 | { | |
777ea8f1 | 2035 | gdb_byte *str; |
c906108c SS |
2036 | CORE_ADDR tem; |
2037 | int j; | |
1aa20aa8 | 2038 | tem = value_as_address (val_args[i]); |
c906108c SS |
2039 | |
2040 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2041 | for (j = 0;; j++) |
c906108c | 2042 | { |
777ea8f1 | 2043 | gdb_byte c; |
c906108c | 2044 | QUIT; |
d4b2399a | 2045 | read_memory (tem + j, &c, 1); |
c906108c SS |
2046 | if (c == 0) |
2047 | break; | |
2048 | } | |
2049 | ||
2050 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2051 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2052 | if (j != 0) |
2053 | read_memory (tem, str, j); | |
c906108c SS |
2054 | str[j] = 0; |
2055 | ||
777ea8f1 | 2056 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2057 | } |
2058 | break; | |
2059 | case double_arg: | |
2060 | { | |
2061 | double val = value_as_double (val_args[i]); | |
2062 | printf_filtered (current_substring, val); | |
2063 | break; | |
2064 | } | |
46e9880c DJ |
2065 | case long_double_arg: |
2066 | #ifdef HAVE_LONG_DOUBLE | |
2067 | { | |
2068 | long double val = value_as_double (val_args[i]); | |
2069 | printf_filtered (current_substring, val); | |
2070 | break; | |
2071 | } | |
2072 | #else | |
2073 | error (_("long double not supported in printf")); | |
2074 | #endif | |
c906108c SS |
2075 | case long_long_arg: |
2076 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2077 | { | |
2078 | long long val = value_as_long (val_args[i]); | |
2079 | printf_filtered (current_substring, val); | |
2080 | break; | |
2081 | } | |
2082 | #else | |
8a3fe4f8 | 2083 | error (_("long long not supported in printf")); |
c906108c SS |
2084 | #endif |
2085 | case int_arg: | |
2086 | { | |
46e9880c DJ |
2087 | int val = value_as_long (val_args[i]); |
2088 | printf_filtered (current_substring, val); | |
2089 | break; | |
2090 | } | |
2091 | case long_arg: | |
2092 | { | |
c906108c SS |
2093 | long val = value_as_long (val_args[i]); |
2094 | printf_filtered (current_substring, val); | |
2095 | break; | |
2096 | } | |
2025a643 DJ |
2097 | case ptr_arg: |
2098 | { | |
2099 | /* We avoid the host's %p because pointers are too | |
2100 | likely to be the wrong size. The only interesting | |
2101 | modifier for %p is a width; extract that, and then | |
2102 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2103 | ||
2104 | char *p, *fmt, *fmt_p; | |
2105 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2106 | long long val = value_as_long (val_args[i]); | |
2107 | #else | |
2108 | long val = value_as_long (val_args[i]); | |
2109 | #endif | |
2110 | ||
2111 | fmt = alloca (strlen (current_substring) + 5); | |
2112 | ||
2113 | /* Copy up to the leading %. */ | |
2114 | p = current_substring; | |
2115 | fmt_p = fmt; | |
2116 | while (*p) | |
2117 | { | |
2118 | int is_percent = (*p == '%'); | |
2119 | *fmt_p++ = *p++; | |
2120 | if (is_percent) | |
2121 | { | |
2122 | if (*p == '%') | |
2123 | *fmt_p++ = *p++; | |
2124 | else | |
2125 | break; | |
2126 | } | |
2127 | } | |
2128 | ||
2129 | if (val != 0) | |
2130 | *fmt_p++ = '#'; | |
2131 | ||
2132 | /* Copy any width. */ | |
2133 | while (*p >= '0' && *p < '9') | |
2134 | *fmt_p++ = *p++; | |
2135 | ||
2136 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2137 | if (val != 0) | |
2138 | { | |
2139 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2140 | *fmt_p++ = 'l'; | |
2141 | #endif | |
2142 | *fmt_p++ = 'l'; | |
2143 | *fmt_p++ = 'x'; | |
2144 | *fmt_p++ = '\0'; | |
2145 | printf_filtered (fmt, val); | |
2146 | } | |
2147 | else | |
2148 | { | |
2149 | *fmt_p++ = 's'; | |
2150 | *fmt_p++ = '\0'; | |
2151 | printf_filtered (fmt, "(nil)"); | |
2152 | } | |
2153 | ||
2154 | break; | |
2155 | } | |
675dcf4f MK |
2156 | default: |
2157 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2158 | _("failed internal consistency check")); |
c906108c SS |
2159 | } |
2160 | /* Skip to the next substring. */ | |
2161 | current_substring += strlen (current_substring) + 1; | |
2162 | } | |
2163 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2164 | puts_filtered (last_arg); |
c906108c SS |
2165 | } |
2166 | do_cleanups (old_cleanups); | |
2167 | } | |
c906108c | 2168 | |
c906108c | 2169 | void |
fba45db2 | 2170 | _initialize_printcmd (void) |
c906108c | 2171 | { |
c94fdfd0 EZ |
2172 | struct cmd_list_element *c; |
2173 | ||
c906108c SS |
2174 | current_display_number = -1; |
2175 | ||
2176 | add_info ("address", address_info, | |
1bedd215 | 2177 | _("Describe where symbol SYM is stored.")); |
c906108c | 2178 | |
1bedd215 AC |
2179 | add_info ("symbol", sym_info, _("\ |
2180 | Describe what symbol is at location ADDR.\n\ | |
2181 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2182 | |
1bedd215 AC |
2183 | add_com ("x", class_vars, x_command, _("\ |
2184 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2185 | ADDRESS is an expression for the memory address to examine.\n\ |
2186 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2187 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2188 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2189 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2190 | The specified number of objects of the specified size are printed\n\ |
2191 | according to the format.\n\n\ | |
2192 | Defaults for format and size letters are those previously used.\n\ | |
2193 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2194 | with this command or \"print\".")); |
c906108c | 2195 | |
c906108c SS |
2196 | #if 0 |
2197 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2198 | _("Print line number and file of definition of variable.")); |
c906108c | 2199 | #endif |
c5aa993b | 2200 | |
1bedd215 AC |
2201 | add_info ("display", display_info, _("\ |
2202 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2203 | |
1a966eab AC |
2204 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2205 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2206 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2207 | No argument means cancel all automatic-display expressions.\n\ | |
2208 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2209 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2210 | &cmdlist); |
c906108c | 2211 | |
1bedd215 AC |
2212 | add_com ("display", class_vars, display_command, _("\ |
2213 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2214 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2215 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2216 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2217 | and examining is done as in the \"x\" command.\n\n\ | |
2218 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2219 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2220 | |
1a966eab AC |
2221 | add_cmd ("display", class_vars, enable_display, _("\ |
2222 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2223 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2224 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2225 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2226 | |
1a966eab AC |
2227 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2228 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2229 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2230 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2231 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2232 | |
1a966eab AC |
2233 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2234 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2235 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2236 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2237 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2238 | |
1bedd215 AC |
2239 | add_com ("printf", class_vars, printf_command, _("\ |
2240 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2241 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2242 | |
1bedd215 AC |
2243 | add_com ("output", class_vars, output_command, _("\ |
2244 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2245 | This is useful in user-defined commands.")); | |
c906108c | 2246 | |
1bedd215 AC |
2247 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2248 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2249 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2250 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2251 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2252 | variable in the program being debugged. EXP is any valid expression.\n\ |
2253 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2254 | \n\ | |
2255 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2256 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2257 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2258 | if (dbx_commands) |
1bedd215 AC |
2259 | add_com ("assign", class_vars, set_command, _("\ |
2260 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2261 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2262 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2263 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2264 | variable in the program being debugged. EXP is any valid expression.\n\ |
2265 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2266 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2267 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2268 | |
2269 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2270 | c = add_com ("call", class_vars, call_command, _("\ |
2271 | Call a function in the program.\n\ | |
c906108c SS |
2272 | The argument is the function name and arguments, in the notation of the\n\ |
2273 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2274 | history, if it is not void.")); |
5ba2abeb | 2275 | set_cmd_completer (c, location_completer); |
c906108c | 2276 | |
1a966eab AC |
2277 | add_cmd ("variable", class_vars, set_command, _("\ |
2278 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2279 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2280 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2281 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2282 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2283 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2284 | &setlist); |
c906108c | 2285 | |
1bedd215 AC |
2286 | c = add_com ("print", class_vars, print_command, _("\ |
2287 | Print value of expression EXP.\n\ | |
c906108c SS |
2288 | Variables accessible are those of the lexical environment of the selected\n\ |
2289 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2290 | \n\ | |
2291 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2292 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2293 | Names starting with $ refer to registers (with the values they would have\n\ |
2294 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2295 | all registers saved by frames farther in) or else to debugger\n\ |
2296 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2297 | Use assignment expressions to give values to convenience variables.\n\ |
2298 | \n\ | |
c906108c SS |
2299 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2300 | @ is a binary operator for treating consecutive data objects\n\ | |
2301 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2302 | element is FOO, whose second element is stored in the space following\n\ | |
2303 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2304 | resides in memory.\n\ |
2305 | \n\ | |
c906108c | 2306 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2307 | but no count or size letter (see \"x\" command).")); |
5ba2abeb | 2308 | set_cmd_completer (c, location_completer); |
c906108c SS |
2309 | add_com_alias ("p", "print", class_vars, 1); |
2310 | ||
1bedd215 AC |
2311 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2312 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2313 | environment, the value is printed in its own window.")); | |
5ba2abeb | 2314 | set_cmd_completer (c, location_completer); |
c906108c | 2315 | |
35096d9d AC |
2316 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2317 | &max_symbolic_offset, _("\ | |
2318 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2319 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2320 | NULL, | |
920d2a44 | 2321 | show_max_symbolic_offset, |
35096d9d | 2322 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2323 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2324 | &print_symbol_filename, _("\ | |
2325 | Set printing of source filename and line number with <symbol>."), _("\ | |
2326 | Show printing of source filename and line number with <symbol>."), NULL, | |
2327 | NULL, | |
920d2a44 | 2328 | show_print_symbol_filename, |
5bf193a2 | 2329 | &setprintlist, &showprintlist); |
c906108c SS |
2330 | |
2331 | /* For examine/instruction a single byte quantity is specified as | |
2332 | the data. This avoids problems with value_at_lazy() requiring a | |
2333 | valid data type (and rejecting VOID). */ | |
2334 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2335 | ||
2336 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2337 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2338 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2339 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2340 | ||
2341 | } |