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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" |
c906108c | 45 | |
6a83354a AC |
46 | #ifdef TUI |
47 | #include "tui/tui.h" /* For tui_active et.al. */ | |
48 | #endif | |
49 | ||
09d71d23 AS |
50 | #if defined(__MINGW32__) |
51 | # define USE_PRINTF_I64 1 | |
52 | # define PRINTF_HAS_LONG_LONG | |
53 | #else | |
54 | # define USE_PRINTF_I64 0 | |
55 | #endif | |
56 | ||
c906108c SS |
57 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ |
58 | extern int addressprint; /* Whether to print hex addresses in HLL " */ | |
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 | ||
123 | /* Flag to low-level print routines that this value is being printed | |
124 | in an epoch window. We'd like to pass this as a parameter, but | |
125 | every routine would need to take it. Perhaps we can encapsulate | |
126 | this in the I/O stream once we have GNU stdio. */ | |
127 | ||
128 | int inspect_it = 0; | |
129 | ||
130 | struct display | |
c5aa993b JM |
131 | { |
132 | /* Chain link to next auto-display item. */ | |
133 | struct display *next; | |
134 | /* Expression to be evaluated and displayed. */ | |
135 | struct expression *exp; | |
136 | /* Item number of this auto-display item. */ | |
137 | int number; | |
138 | /* Display format specified. */ | |
139 | struct format_data format; | |
140 | /* Innermost block required by this expression when evaluated */ | |
141 | struct block *block; | |
142 | /* Status of this display (enabled or disabled) */ | |
b5de0fa7 | 143 | int enabled_p; |
c5aa993b | 144 | }; |
c906108c SS |
145 | |
146 | /* Chain of expressions whose values should be displayed | |
147 | automatically each time the program stops. */ | |
148 | ||
149 | static struct display *display_chain; | |
150 | ||
151 | static int display_number; | |
152 | ||
153 | /* Prototypes for exported functions. */ | |
154 | ||
a14ed312 | 155 | void output_command (char *, int); |
c906108c | 156 | |
a14ed312 | 157 | void _initialize_printcmd (void); |
c906108c SS |
158 | |
159 | /* Prototypes for local functions. */ | |
160 | ||
a14ed312 | 161 | static void do_one_display (struct display *); |
c906108c | 162 | \f |
c5aa993b | 163 | |
c906108c SS |
164 | /* Decode a format specification. *STRING_PTR should point to it. |
165 | OFORMAT and OSIZE are used as defaults for the format and size | |
166 | if none are given in the format specification. | |
167 | If OSIZE is zero, then the size field of the returned value | |
168 | should be set only if a size is explicitly specified by the | |
169 | user. | |
170 | The structure returned describes all the data | |
171 | found in the specification. In addition, *STRING_PTR is advanced | |
172 | past the specification and past all whitespace following it. */ | |
173 | ||
174 | static struct format_data | |
fba45db2 | 175 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
176 | { |
177 | struct format_data val; | |
52f0bd74 | 178 | char *p = *string_ptr; |
c906108c SS |
179 | |
180 | val.format = '?'; | |
181 | val.size = '?'; | |
182 | val.count = 1; | |
183 | ||
184 | if (*p >= '0' && *p <= '9') | |
185 | val.count = atoi (p); | |
c5aa993b JM |
186 | while (*p >= '0' && *p <= '9') |
187 | p++; | |
c906108c SS |
188 | |
189 | /* Now process size or format letters that follow. */ | |
190 | ||
191 | while (1) | |
192 | { | |
193 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
194 | val.size = *p++; | |
195 | else if (*p >= 'a' && *p <= 'z') | |
196 | val.format = *p++; | |
197 | else | |
198 | break; | |
199 | } | |
200 | ||
c5aa993b JM |
201 | while (*p == ' ' || *p == '\t') |
202 | p++; | |
c906108c SS |
203 | *string_ptr = p; |
204 | ||
205 | /* Set defaults for format and size if not specified. */ | |
206 | if (val.format == '?') | |
207 | { | |
208 | if (val.size == '?') | |
209 | { | |
210 | /* Neither has been specified. */ | |
211 | val.format = oformat; | |
212 | val.size = osize; | |
213 | } | |
214 | else | |
215 | /* If a size is specified, any format makes a reasonable | |
216 | default except 'i'. */ | |
217 | val.format = oformat == 'i' ? 'x' : oformat; | |
218 | } | |
219 | else if (val.size == '?') | |
220 | switch (val.format) | |
221 | { | |
222 | case 'a': | |
223 | case 's': | |
224 | /* Pick the appropriate size for an address. */ | |
819844ad | 225 | if (gdbarch_ptr_bit (current_gdbarch) == 64) |
c906108c | 226 | val.size = osize ? 'g' : osize; |
819844ad | 227 | else if (gdbarch_ptr_bit (current_gdbarch) == 32) |
c906108c | 228 | val.size = osize ? 'w' : osize; |
819844ad | 229 | else if (gdbarch_ptr_bit (current_gdbarch) == 16) |
c906108c SS |
230 | val.size = osize ? 'h' : osize; |
231 | else | |
819844ad | 232 | /* Bad value for gdbarch_ptr_bit. */ |
675dcf4f MK |
233 | internal_error (__FILE__, __LINE__, |
234 | _("failed internal consistency check")); | |
c906108c SS |
235 | break; |
236 | case 'f': | |
237 | /* Floating point has to be word or giantword. */ | |
238 | if (osize == 'w' || osize == 'g') | |
239 | val.size = osize; | |
240 | else | |
241 | /* Default it to giantword if the last used size is not | |
242 | appropriate. */ | |
243 | val.size = osize ? 'g' : osize; | |
244 | break; | |
245 | case 'c': | |
246 | /* Characters default to one byte. */ | |
247 | val.size = osize ? 'b' : osize; | |
248 | break; | |
249 | default: | |
250 | /* The default is the size most recently specified. */ | |
251 | val.size = osize; | |
252 | } | |
253 | ||
254 | return val; | |
255 | } | |
256 | \f | |
2acceee2 | 257 | /* Print value VAL on stream according to FORMAT, a letter or 0. |
c906108c SS |
258 | Do not end with a newline. |
259 | 0 means print VAL according to its own type. | |
260 | SIZE is the letter for the size of datum being printed. | |
ea37ba09 DJ |
261 | This is used to pad hex numbers so they line up. SIZE is 0 |
262 | for print / output and set for examine. */ | |
c906108c SS |
263 | |
264 | static void | |
aa1ee363 | 265 | print_formatted (struct value *val, int format, int size, |
fba45db2 | 266 | struct ui_file *stream) |
c906108c | 267 | { |
df407dfe | 268 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
269 | int len = TYPE_LENGTH (type); |
270 | ||
271 | if (VALUE_LVAL (val) == lval_memory) | |
675dcf4f | 272 | next_address = VALUE_ADDRESS (val) + len; |
c906108c | 273 | |
ea37ba09 | 274 | if (size) |
c906108c | 275 | { |
ea37ba09 DJ |
276 | switch (format) |
277 | { | |
278 | case 's': | |
279 | /* FIXME: Need to handle wchar_t's here... */ | |
280 | next_address = VALUE_ADDRESS (val) | |
281 | + val_print_string (VALUE_ADDRESS (val), -1, 1, stream); | |
282 | return; | |
c906108c | 283 | |
ea37ba09 DJ |
284 | case 'i': |
285 | /* We often wrap here if there are long symbolic names. */ | |
286 | wrap_here (" "); | |
287 | next_address = (VALUE_ADDRESS (val) | |
288 | + gdb_print_insn (VALUE_ADDRESS (val), stream, | |
289 | &branch_delay_insns)); | |
290 | return; | |
291 | } | |
c906108c | 292 | } |
ea37ba09 DJ |
293 | |
294 | if (format == 0 || format == 's' | |
4e885b20 | 295 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
296 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
297 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
298 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
299 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
300 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
301 | /* If format is 0, use the 'natural' format for that type of | |
302 | value. If the type is non-scalar, we have to use language | |
303 | rules to print it as a series of scalars. */ | |
304 | value_print (val, stream, format, Val_pretty_default); | |
305 | else | |
306 | /* User specified format, so don't look to the the type to | |
307 | tell us what to do. */ | |
308 | print_scalar_formatted (value_contents (val), type, | |
309 | format, size, stream); | |
c906108c SS |
310 | } |
311 | ||
312 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
313 | according to letters FORMAT and SIZE on STREAM. | |
314 | FORMAT may not be zero. Formats s and i are not supported at this level. | |
315 | ||
316 | This is how the elements of an array or structure are printed | |
317 | with a format. */ | |
318 | ||
319 | void | |
366b1cbf AC |
320 | print_scalar_formatted (const void *valaddr, struct type *type, |
321 | int format, int size, struct ui_file *stream) | |
c906108c | 322 | { |
81cb7cc9 | 323 | LONGEST val_long = 0; |
c906108c SS |
324 | unsigned int len = TYPE_LENGTH (type); |
325 | ||
ea37ba09 DJ |
326 | /* If we get here with a string format, try again without it. Go |
327 | all the way back to the language printers, which may call us | |
328 | again. */ | |
329 | if (format == 's') | |
330 | { | |
d8ca156b JB |
331 | val_print (type, valaddr, 0, 0, stream, 0, 0, 0, Val_pretty_default, |
332 | current_language); | |
ea37ba09 DJ |
333 | return; |
334 | } | |
335 | ||
6b9acc27 JJ |
336 | if (len > sizeof(LONGEST) && |
337 | (TYPE_CODE (type) == TYPE_CODE_INT | |
338 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
339 | { | |
340 | switch (format) | |
341 | { | |
342 | case 'o': | |
343 | print_octal_chars (stream, valaddr, len); | |
344 | return; | |
345 | case 'u': | |
346 | case 'd': | |
347 | print_decimal_chars (stream, valaddr, len); | |
348 | return; | |
349 | case 't': | |
350 | print_binary_chars (stream, valaddr, len); | |
351 | return; | |
352 | case 'x': | |
353 | print_hex_chars (stream, valaddr, len); | |
354 | return; | |
355 | case 'c': | |
356 | print_char_chars (stream, valaddr, len); | |
357 | return; | |
358 | default: | |
359 | break; | |
360 | }; | |
361 | } | |
362 | ||
95051d27 | 363 | if (format != 'f') |
c906108c SS |
364 | val_long = unpack_long (type, valaddr); |
365 | ||
ef166cf4 | 366 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 367 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 368 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 369 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
17a912b6 | 370 | len = gdbarch_addr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 371 | |
c906108c SS |
372 | /* If we are printing it as unsigned, truncate it in case it is actually |
373 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
374 | (if shorts are 16 bits) instead of 4294967295). */ | |
375 | if (format != 'd') | |
376 | { | |
377 | if (len < sizeof (LONGEST)) | |
378 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
379 | } | |
380 | ||
381 | switch (format) | |
382 | { | |
383 | case 'x': | |
384 | if (!size) | |
385 | { | |
675dcf4f | 386 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
387 | print_longest (stream, 'x', 1, val_long); |
388 | } | |
389 | else | |
390 | switch (size) | |
391 | { | |
392 | case 'b': | |
393 | case 'h': | |
394 | case 'w': | |
395 | case 'g': | |
396 | print_longest (stream, size, 1, val_long); | |
397 | break; | |
398 | default: | |
8a3fe4f8 | 399 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
400 | } |
401 | break; | |
402 | ||
403 | case 'd': | |
404 | print_longest (stream, 'd', 1, val_long); | |
405 | break; | |
406 | ||
407 | case 'u': | |
408 | print_longest (stream, 'u', 0, val_long); | |
409 | break; | |
410 | ||
411 | case 'o': | |
412 | if (val_long) | |
413 | print_longest (stream, 'o', 1, val_long); | |
414 | else | |
415 | fprintf_filtered (stream, "0"); | |
416 | break; | |
417 | ||
418 | case 'a': | |
593de6a6 | 419 | { |
593de6a6 | 420 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
593de6a6 PS |
421 | print_address (addr, stream); |
422 | } | |
c906108c SS |
423 | break; |
424 | ||
425 | case 'c': | |
ea37ba09 DJ |
426 | if (TYPE_UNSIGNED (type)) |
427 | { | |
428 | struct type *utype; | |
429 | ||
430 | utype = builtin_type (current_gdbarch)->builtin_true_unsigned_char; | |
431 | value_print (value_from_longest (utype, val_long), | |
432 | stream, 0, Val_pretty_default); | |
433 | } | |
434 | else | |
435 | value_print (value_from_longest (builtin_type_true_char, val_long), | |
436 | stream, 0, Val_pretty_default); | |
c906108c SS |
437 | break; |
438 | ||
439 | case 'f': | |
f4697836 | 440 | if (len == TYPE_LENGTH (builtin_type_float)) |
664cccae | 441 | type = builtin_type_float; |
f4697836 | 442 | else if (len == TYPE_LENGTH (builtin_type_double)) |
664cccae | 443 | type = builtin_type_double; |
f4697836 JB |
444 | else if (len == TYPE_LENGTH (builtin_type_long_double)) |
445 | type = builtin_type_long_double; | |
c906108c SS |
446 | print_floating (valaddr, type, stream); |
447 | break; | |
448 | ||
449 | case 0: | |
675dcf4f MK |
450 | internal_error (__FILE__, __LINE__, |
451 | _("failed internal consistency check")); | |
c906108c SS |
452 | |
453 | case 't': | |
454 | /* Binary; 't' stands for "two". */ | |
455 | { | |
c5aa993b JM |
456 | char bits[8 * (sizeof val_long) + 1]; |
457 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
458 | char *cp = bits; |
459 | int width; | |
460 | ||
c5aa993b JM |
461 | if (!size) |
462 | width = 8 * (sizeof val_long); | |
463 | else | |
464 | switch (size) | |
c906108c SS |
465 | { |
466 | case 'b': | |
467 | width = 8; | |
468 | break; | |
469 | case 'h': | |
470 | width = 16; | |
471 | break; | |
472 | case 'w': | |
473 | width = 32; | |
474 | break; | |
475 | case 'g': | |
476 | width = 64; | |
477 | break; | |
478 | default: | |
8a3fe4f8 | 479 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
480 | } |
481 | ||
c5aa993b JM |
482 | bits[width] = '\0'; |
483 | while (width-- > 0) | |
484 | { | |
485 | bits[width] = (val_long & 1) ? '1' : '0'; | |
486 | val_long >>= 1; | |
487 | } | |
c906108c SS |
488 | if (!size) |
489 | { | |
490 | while (*cp && *cp == '0') | |
491 | cp++; | |
492 | if (*cp == '\0') | |
493 | cp--; | |
494 | } | |
bb599908 | 495 | strcpy (buf, cp); |
306d9ac5 | 496 | fputs_filtered (buf, stream); |
c906108c SS |
497 | } |
498 | break; | |
499 | ||
500 | default: | |
8a3fe4f8 | 501 | error (_("Undefined output format \"%c\"."), format); |
c906108c SS |
502 | } |
503 | } | |
504 | ||
505 | /* Specify default address for `x' command. | |
675dcf4f | 506 | The `info lines' command uses this. */ |
c906108c SS |
507 | |
508 | void | |
fba45db2 | 509 | set_next_address (CORE_ADDR addr) |
c906108c SS |
510 | { |
511 | next_address = addr; | |
512 | ||
513 | /* Make address available to the user as $_. */ | |
514 | set_internalvar (lookup_internalvar ("_"), | |
4478b372 JB |
515 | value_from_pointer (lookup_pointer_type (builtin_type_void), |
516 | addr)); | |
c906108c SS |
517 | } |
518 | ||
519 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
520 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
521 | Optionally also print source file and line number, if available. | |
522 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
523 | or to interpret it as a possible C++ name and convert it back to source | |
524 | form. However note that DO_DEMANGLE can be overridden by the specific | |
525 | settings of the demangle and asm_demangle variables. */ | |
526 | ||
527 | void | |
675dcf4f MK |
528 | print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, |
529 | int do_demangle, char *leadin) | |
dfcd3bfb JM |
530 | { |
531 | char *name = NULL; | |
532 | char *filename = NULL; | |
533 | int unmapped = 0; | |
534 | int offset = 0; | |
535 | int line = 0; | |
536 | ||
675dcf4f | 537 | /* Throw away both name and filename. */ |
2f9429ae AC |
538 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
539 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 540 | |
675dcf4f MK |
541 | if (build_address_symbolic (addr, do_demangle, &name, &offset, |
542 | &filename, &line, &unmapped)) | |
2f9429ae AC |
543 | { |
544 | do_cleanups (cleanup_chain); | |
545 | return; | |
546 | } | |
dfcd3bfb JM |
547 | |
548 | fputs_filtered (leadin, stream); | |
549 | if (unmapped) | |
550 | fputs_filtered ("<*", stream); | |
551 | else | |
552 | fputs_filtered ("<", stream); | |
553 | fputs_filtered (name, stream); | |
554 | if (offset != 0) | |
555 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
556 | ||
557 | /* Append source filename and line number if desired. Give specific | |
558 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
559 | if (print_symbol_filename && filename != NULL) | |
560 | { | |
561 | if (line != -1) | |
562 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
563 | else | |
564 | fprintf_filtered (stream, " in %s", filename); | |
565 | } | |
566 | if (unmapped) | |
567 | fputs_filtered ("*>", stream); | |
568 | else | |
569 | fputs_filtered (">", stream); | |
570 | ||
571 | do_cleanups (cleanup_chain); | |
572 | } | |
573 | ||
574 | /* Given an address ADDR return all the elements needed to print the | |
575 | address in a symbolic form. NAME can be mangled or not depending | |
576 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
577 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
578 | success, when all the info in the OUT paramters is valid. Return 1 | |
579 | otherwise. */ | |
580 | int | |
581 | build_address_symbolic (CORE_ADDR addr, /* IN */ | |
582 | int do_demangle, /* IN */ | |
583 | char **name, /* OUT */ | |
584 | int *offset, /* OUT */ | |
585 | char **filename, /* OUT */ | |
586 | int *line, /* OUT */ | |
587 | int *unmapped) /* OUT */ | |
c906108c SS |
588 | { |
589 | struct minimal_symbol *msymbol; | |
590 | struct symbol *symbol; | |
c906108c | 591 | CORE_ADDR name_location = 0; |
c906108c | 592 | asection *section = 0; |
dfcd3bfb JM |
593 | char *name_temp = ""; |
594 | ||
675dcf4f | 595 | /* Let's say it is unmapped. */ |
dfcd3bfb | 596 | *unmapped = 0; |
c906108c | 597 | |
dfcd3bfb | 598 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 599 | mapped. */ |
c906108c SS |
600 | if (overlay_debugging) |
601 | { | |
602 | section = find_pc_overlay (addr); | |
603 | if (pc_in_unmapped_range (addr, section)) | |
604 | { | |
dfcd3bfb | 605 | *unmapped = 1; |
c906108c SS |
606 | addr = overlay_mapped_address (addr, section); |
607 | } | |
608 | } | |
609 | ||
c906108c SS |
610 | /* First try to find the address in the symbol table, then |
611 | in the minsyms. Take the closest one. */ | |
612 | ||
613 | /* This is defective in the sense that it only finds text symbols. So | |
614 | really this is kind of pointless--we should make sure that the | |
615 | minimal symbols have everything we need (by changing that we could | |
616 | save some memory, but for many debug format--ELF/DWARF or | |
617 | anything/stabs--it would be inconvenient to eliminate those minimal | |
618 | symbols anyway). */ | |
619 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
620 | symbol = find_pc_sect_function (addr, section); | |
621 | ||
622 | if (symbol) | |
623 | { | |
624 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
406fc7fb | 625 | if (do_demangle || asm_demangle) |
de5ad195 | 626 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 627 | else |
22abf04a | 628 | name_temp = DEPRECATED_SYMBOL_NAME (symbol); |
c906108c SS |
629 | } |
630 | ||
631 | if (msymbol != NULL) | |
632 | { | |
633 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
634 | { | |
635 | /* The msymbol is closer to the address than the symbol; | |
636 | use the msymbol instead. */ | |
637 | symbol = 0; | |
c906108c | 638 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 639 | if (do_demangle || asm_demangle) |
de5ad195 | 640 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 641 | else |
22abf04a | 642 | name_temp = DEPRECATED_SYMBOL_NAME (msymbol); |
c906108c SS |
643 | } |
644 | } | |
645 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 646 | return 1; |
c906108c | 647 | |
c906108c SS |
648 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
649 | ||
650 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
651 | CORE_ADDR. But when we detect unsigned wraparound in the | |
652 | CORE_ADDR math, we ignore this test and print the offset, | |
653 | because addr+max_symbolic_offset has wrapped through the end | |
654 | of the address space back to the beginning, giving bogus comparison. */ | |
655 | if (addr > name_location + max_symbolic_offset | |
656 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 657 | return 1; |
c906108c | 658 | |
dfcd3bfb JM |
659 | *offset = addr - name_location; |
660 | ||
661 | *name = xstrdup (name_temp); | |
c906108c | 662 | |
c906108c SS |
663 | if (print_symbol_filename) |
664 | { | |
665 | struct symtab_and_line sal; | |
666 | ||
667 | sal = find_pc_sect_line (addr, section, 0); | |
668 | ||
669 | if (sal.symtab) | |
dfcd3bfb JM |
670 | { |
671 | *filename = xstrdup (sal.symtab->filename); | |
672 | *line = sal.line; | |
673 | } | |
c906108c | 674 | } |
dfcd3bfb | 675 | return 0; |
c906108c SS |
676 | } |
677 | ||
c906108c SS |
678 | /* Print address ADDR on STREAM. USE_LOCAL means the same thing as for |
679 | print_longest. */ | |
680 | void | |
66bf4b3a AC |
681 | deprecated_print_address_numeric (CORE_ADDR addr, int use_local, |
682 | struct ui_file *stream) | |
c906108c | 683 | { |
66bf4b3a AC |
684 | if (use_local) |
685 | fputs_filtered (paddress (addr), stream); | |
686 | else | |
687 | { | |
17a912b6 | 688 | int addr_bit = gdbarch_addr_bit (current_gdbarch); |
66bf4b3a AC |
689 | |
690 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
691 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
692 | print_longest (stream, 'x', 0, (ULONGEST) addr); | |
693 | } | |
c906108c SS |
694 | } |
695 | ||
696 | /* Print address ADDR symbolically on STREAM. | |
697 | First print it as a number. Then perhaps print | |
698 | <SYMBOL + OFFSET> after the number. */ | |
699 | ||
700 | void | |
fba45db2 | 701 | print_address (CORE_ADDR addr, struct ui_file *stream) |
c906108c | 702 | { |
ed49a04f | 703 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
704 | print_address_symbolic (addr, stream, asm_demangle, " "); |
705 | } | |
706 | ||
707 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
708 | controls whether to print the symbolic name "raw" or demangled. | |
709 | Global setting "addressprint" controls whether to print hex address | |
710 | or not. */ | |
711 | ||
712 | void | |
675dcf4f MK |
713 | print_address_demangle (CORE_ADDR addr, struct ui_file *stream, |
714 | int do_demangle) | |
c906108c SS |
715 | { |
716 | if (addr == 0) | |
717 | { | |
718 | fprintf_filtered (stream, "0"); | |
719 | } | |
720 | else if (addressprint) | |
721 | { | |
ed49a04f | 722 | fputs_filtered (paddress (addr), stream); |
c906108c SS |
723 | print_address_symbolic (addr, stream, do_demangle, " "); |
724 | } | |
725 | else | |
726 | { | |
727 | print_address_symbolic (addr, stream, do_demangle, ""); | |
728 | } | |
729 | } | |
730 | \f | |
731 | ||
732 | /* These are the types that $__ will get after an examine command of one | |
733 | of these sizes. */ | |
734 | ||
735 | static struct type *examine_i_type; | |
736 | ||
737 | static struct type *examine_b_type; | |
738 | static struct type *examine_h_type; | |
739 | static struct type *examine_w_type; | |
740 | static struct type *examine_g_type; | |
741 | ||
742 | /* Examine data at address ADDR in format FMT. | |
743 | Fetch it from memory and print on gdb_stdout. */ | |
744 | ||
745 | static void | |
00a4c844 | 746 | do_examine (struct format_data fmt, CORE_ADDR addr) |
c906108c | 747 | { |
52f0bd74 AC |
748 | char format = 0; |
749 | char size; | |
750 | int count = 1; | |
c906108c | 751 | struct type *val_type = NULL; |
52f0bd74 AC |
752 | int i; |
753 | int maxelts; | |
c906108c SS |
754 | |
755 | format = fmt.format; | |
756 | size = fmt.size; | |
757 | count = fmt.count; | |
758 | next_address = addr; | |
c906108c SS |
759 | |
760 | /* String or instruction format implies fetch single bytes | |
761 | regardless of the specified size. */ | |
762 | if (format == 's' || format == 'i') | |
763 | size = 'b'; | |
764 | ||
765 | if (format == 'i') | |
766 | val_type = examine_i_type; | |
767 | else if (size == 'b') | |
768 | val_type = examine_b_type; | |
769 | else if (size == 'h') | |
770 | val_type = examine_h_type; | |
771 | else if (size == 'w') | |
772 | val_type = examine_w_type; | |
773 | else if (size == 'g') | |
774 | val_type = examine_g_type; | |
775 | ||
776 | maxelts = 8; | |
777 | if (size == 'w') | |
778 | maxelts = 4; | |
779 | if (size == 'g') | |
780 | maxelts = 2; | |
781 | if (format == 's' || format == 'i') | |
782 | maxelts = 1; | |
783 | ||
784 | /* Print as many objects as specified in COUNT, at most maxelts per line, | |
785 | with the address of the next one at the start of each line. */ | |
786 | ||
787 | while (count > 0) | |
788 | { | |
789 | QUIT; | |
790 | print_address (next_address, gdb_stdout); | |
791 | printf_filtered (":"); | |
792 | for (i = maxelts; | |
793 | i > 0 && count > 0; | |
794 | i--, count--) | |
795 | { | |
796 | printf_filtered ("\t"); | |
797 | /* Note that print_formatted sets next_address for the next | |
798 | object. */ | |
799 | last_examine_address = next_address; | |
800 | ||
801 | if (last_examine_value) | |
802 | value_free (last_examine_value); | |
803 | ||
804 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
805 | Instead, to avoid the possibility of a fetched value not |
806 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
807 | uses it. When examining an instruction stream, the |
808 | disassembler will perform its own memory fetch using just | |
809 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
810 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
811 | is left with the byte sequence from the last complete | |
812 | instruction fetched from memory? */ | |
00a4c844 | 813 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
814 | |
815 | if (last_examine_value) | |
816 | release_value (last_examine_value); | |
817 | ||
2acceee2 | 818 | print_formatted (last_examine_value, format, size, gdb_stdout); |
a4642986 MR |
819 | |
820 | /* Display any branch delay slots following the final insn. */ | |
821 | if (format == 'i' && count == 1) | |
822 | count += branch_delay_insns; | |
c906108c SS |
823 | } |
824 | printf_filtered ("\n"); | |
825 | gdb_flush (gdb_stdout); | |
826 | } | |
827 | } | |
828 | \f | |
829 | static void | |
fba45db2 | 830 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
831 | { |
832 | if (fmt.size != 0) | |
8a3fe4f8 | 833 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 834 | if (fmt.count != 1) |
8a3fe4f8 | 835 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 836 | cmdname); |
ea37ba09 | 837 | if (fmt.format == 'i') |
8a3fe4f8 | 838 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
839 | fmt.format, cmdname); |
840 | } | |
841 | ||
675dcf4f | 842 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 843 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 844 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
845 | |
846 | static void | |
fba45db2 | 847 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
848 | { |
849 | struct expression *expr; | |
52f0bd74 AC |
850 | struct cleanup *old_chain = 0; |
851 | char format = 0; | |
3d6d86c6 | 852 | struct value *val; |
c906108c SS |
853 | struct format_data fmt; |
854 | int cleanup = 0; | |
855 | ||
675dcf4f MK |
856 | /* Pass inspect flag to the rest of the print routines in a global |
857 | (sigh). */ | |
c906108c SS |
858 | inspect_it = inspect; |
859 | ||
860 | if (exp && *exp == '/') | |
861 | { | |
862 | exp++; | |
863 | fmt = decode_format (&exp, last_format, 0); | |
864 | validate_format (fmt, "print"); | |
865 | last_format = format = fmt.format; | |
866 | } | |
867 | else | |
868 | { | |
869 | fmt.count = 1; | |
870 | fmt.format = 0; | |
871 | fmt.size = 0; | |
872 | } | |
873 | ||
874 | if (exp && *exp) | |
875 | { | |
c906108c SS |
876 | struct type *type; |
877 | expr = parse_expression (exp); | |
c13c43fd | 878 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
879 | cleanup = 1; |
880 | val = evaluate_expression (expr); | |
c906108c SS |
881 | } |
882 | else | |
883 | val = access_value_history (0); | |
884 | ||
df407dfe AC |
885 | if (voidprint || (val && value_type (val) && |
886 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c SS |
887 | { |
888 | int histindex = record_latest_value (val); | |
889 | ||
890 | if (histindex >= 0) | |
df407dfe | 891 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 892 | else |
df407dfe | 893 | annotate_value_begin (value_type (val)); |
c906108c SS |
894 | |
895 | if (inspect) | |
675dcf4f MK |
896 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
897 | exp, histindex); | |
c5aa993b JM |
898 | else if (histindex >= 0) |
899 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
900 | |
901 | if (histindex >= 0) | |
902 | annotate_value_history_value (); | |
903 | ||
2acceee2 | 904 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
905 | printf_filtered ("\n"); |
906 | ||
907 | if (histindex >= 0) | |
908 | annotate_value_history_end (); | |
909 | else | |
910 | annotate_value_end (); | |
911 | ||
912 | if (inspect) | |
c5aa993b | 913 | printf_unfiltered ("\") )\030"); |
c906108c SS |
914 | } |
915 | ||
916 | if (cleanup) | |
917 | do_cleanups (old_chain); | |
675dcf4f | 918 | inspect_it = 0; /* Reset print routines to normal. */ |
c906108c SS |
919 | } |
920 | ||
c906108c | 921 | static void |
fba45db2 | 922 | print_command (char *exp, int from_tty) |
c906108c SS |
923 | { |
924 | print_command_1 (exp, 0, 1); | |
925 | } | |
926 | ||
675dcf4f | 927 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 928 | static void |
fba45db2 | 929 | inspect_command (char *exp, int from_tty) |
c906108c SS |
930 | { |
931 | extern int epoch_interface; | |
932 | ||
933 | print_command_1 (exp, epoch_interface, 1); | |
934 | } | |
935 | ||
675dcf4f | 936 | /* Same as print, except it doesn't print void results. */ |
c906108c | 937 | static void |
fba45db2 | 938 | call_command (char *exp, int from_tty) |
c906108c SS |
939 | { |
940 | print_command_1 (exp, 0, 0); | |
941 | } | |
942 | ||
c906108c | 943 | void |
fba45db2 | 944 | output_command (char *exp, int from_tty) |
c906108c SS |
945 | { |
946 | struct expression *expr; | |
52f0bd74 AC |
947 | struct cleanup *old_chain; |
948 | char format = 0; | |
3d6d86c6 | 949 | struct value *val; |
c906108c SS |
950 | struct format_data fmt; |
951 | ||
777ea8f1 DJ |
952 | fmt.size = 0; |
953 | ||
c906108c SS |
954 | if (exp && *exp == '/') |
955 | { | |
956 | exp++; | |
957 | fmt = decode_format (&exp, 0, 0); | |
958 | validate_format (fmt, "output"); | |
959 | format = fmt.format; | |
960 | } | |
961 | ||
962 | expr = parse_expression (exp); | |
c13c43fd | 963 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
964 | |
965 | val = evaluate_expression (expr); | |
966 | ||
df407dfe | 967 | annotate_value_begin (value_type (val)); |
c906108c | 968 | |
2acceee2 | 969 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
970 | |
971 | annotate_value_end (); | |
972 | ||
2acceee2 JM |
973 | wrap_here (""); |
974 | gdb_flush (gdb_stdout); | |
975 | ||
c906108c SS |
976 | do_cleanups (old_chain); |
977 | } | |
978 | ||
c906108c | 979 | static void |
fba45db2 | 980 | set_command (char *exp, int from_tty) |
c906108c SS |
981 | { |
982 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 983 | struct cleanup *old_chain = |
c13c43fd | 984 | make_cleanup (free_current_contents, &expr); |
c906108c SS |
985 | evaluate_expression (expr); |
986 | do_cleanups (old_chain); | |
987 | } | |
988 | ||
c906108c | 989 | static void |
fba45db2 | 990 | sym_info (char *arg, int from_tty) |
c906108c SS |
991 | { |
992 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
993 | struct objfile *objfile; |
994 | struct obj_section *osect; | |
995 | asection *sect; | |
996 | CORE_ADDR addr, sect_addr; | |
997 | int matches = 0; | |
998 | unsigned int offset; | |
c906108c SS |
999 | |
1000 | if (!arg) | |
e2e0b3e5 | 1001 | error_no_arg (_("address")); |
c906108c SS |
1002 | |
1003 | addr = parse_and_eval_address (arg); | |
1004 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1005 | { |
94277a38 DJ |
1006 | /* Only process each object file once, even if there's a separate |
1007 | debug file. */ | |
1008 | if (objfile->separate_debug_objfile_backlink) | |
1009 | continue; | |
1010 | ||
c5aa993b JM |
1011 | sect = osect->the_bfd_section; |
1012 | sect_addr = overlay_mapped_address (addr, sect); | |
c906108c | 1013 | |
c5aa993b JM |
1014 | if (osect->addr <= sect_addr && sect_addr < osect->endaddr && |
1015 | (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, sect))) | |
1016 | { | |
1017 | matches = 1; | |
1018 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
1019 | if (offset) | |
1020 | printf_filtered ("%s + %u in ", | |
de5ad195 | 1021 | SYMBOL_PRINT_NAME (msymbol), offset); |
c5aa993b JM |
1022 | else |
1023 | printf_filtered ("%s in ", | |
de5ad195 | 1024 | SYMBOL_PRINT_NAME (msymbol)); |
c5aa993b | 1025 | if (pc_in_unmapped_range (addr, sect)) |
a3f17187 | 1026 | printf_filtered (_("load address range of ")); |
c5aa993b | 1027 | if (section_is_overlay (sect)) |
a3f17187 | 1028 | printf_filtered (_("%s overlay "), |
c5aa993b | 1029 | section_is_mapped (sect) ? "mapped" : "unmapped"); |
a3f17187 | 1030 | printf_filtered (_("section %s"), sect->name); |
c5aa993b JM |
1031 | printf_filtered ("\n"); |
1032 | } | |
1033 | } | |
c906108c | 1034 | if (matches == 0) |
a3f17187 | 1035 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1036 | } |
1037 | ||
c906108c | 1038 | static void |
fba45db2 | 1039 | address_info (char *exp, int from_tty) |
c906108c | 1040 | { |
52f0bd74 AC |
1041 | struct symbol *sym; |
1042 | struct minimal_symbol *msymbol; | |
1043 | long val; | |
1044 | long basereg; | |
c906108c SS |
1045 | asection *section; |
1046 | CORE_ADDR load_addr; | |
1047 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1048 | if exp is a field of `this'. */ | |
1049 | ||
1050 | if (exp == 0) | |
8a3fe4f8 | 1051 | error (_("Argument required.")); |
c906108c | 1052 | |
176620f1 | 1053 | sym = lookup_symbol (exp, get_selected_block (0), VAR_DOMAIN, |
c5aa993b | 1054 | &is_a_field_of_this, (struct symtab **) NULL); |
c906108c SS |
1055 | if (sym == NULL) |
1056 | { | |
1057 | if (is_a_field_of_this) | |
1058 | { | |
1059 | printf_filtered ("Symbol \""); | |
1060 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1061 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1062 | printf_filtered ("\" is a field of the local class variable "); |
1063 | if (current_language->la_language == language_objc) | |
2625d86c | 1064 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1065 | else |
2625d86c | 1066 | printf_filtered ("`this'\n"); |
c906108c SS |
1067 | return; |
1068 | } | |
1069 | ||
1070 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1071 | ||
1072 | if (msymbol != NULL) | |
1073 | { | |
1074 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1075 | ||
1076 | printf_filtered ("Symbol \""); | |
1077 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1078 | current_language->la_language, DMGL_ANSI); | |
1079 | printf_filtered ("\" is at "); | |
ed49a04f | 1080 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1081 | printf_filtered (" in a file compiled without debugging"); |
1082 | section = SYMBOL_BFD_SECTION (msymbol); | |
1083 | if (section_is_overlay (section)) | |
1084 | { | |
1085 | load_addr = overlay_unmapped_address (load_addr, section); | |
1086 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1087 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1088 | printf_filtered (" in overlay section %s", section->name); |
1089 | } | |
1090 | printf_filtered (".\n"); | |
1091 | } | |
1092 | else | |
8a3fe4f8 | 1093 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1094 | return; |
1095 | } | |
1096 | ||
1097 | printf_filtered ("Symbol \""); | |
22abf04a | 1098 | fprintf_symbol_filtered (gdb_stdout, DEPRECATED_SYMBOL_NAME (sym), |
c906108c SS |
1099 | current_language->la_language, DMGL_ANSI); |
1100 | printf_filtered ("\" is "); | |
c5aa993b | 1101 | val = SYMBOL_VALUE (sym); |
c906108c SS |
1102 | basereg = SYMBOL_BASEREG (sym); |
1103 | section = SYMBOL_BFD_SECTION (sym); | |
1104 | ||
1105 | switch (SYMBOL_CLASS (sym)) | |
1106 | { | |
1107 | case LOC_CONST: | |
1108 | case LOC_CONST_BYTES: | |
1109 | printf_filtered ("constant"); | |
1110 | break; | |
1111 | ||
1112 | case LOC_LABEL: | |
1113 | printf_filtered ("a label at address "); | |
ed49a04f MD |
1114 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1115 | gdb_stdout); | |
c906108c SS |
1116 | if (section_is_overlay (section)) |
1117 | { | |
1118 | load_addr = overlay_unmapped_address (load_addr, section); | |
1119 | printf_filtered (",\n -- loaded at "); | |
ed49a04f | 1120 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1121 | printf_filtered (" in overlay section %s", section->name); |
1122 | } | |
1123 | break; | |
1124 | ||
4c2df51b DJ |
1125 | case LOC_COMPUTED: |
1126 | case LOC_COMPUTED_ARG: | |
a67af2b9 AC |
1127 | /* FIXME: cagney/2004-01-26: It should be possible to |
1128 | unconditionally call the SYMBOL_OPS method when available. | |
d3efc286 | 1129 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1130 | function) location in a function's symbol. Oops! For the |
1131 | moment enable this when/where applicable. */ | |
1132 | SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout); | |
4c2df51b DJ |
1133 | break; |
1134 | ||
c906108c | 1135 | case LOC_REGISTER: |
c9f4d572 UW |
1136 | printf_filtered (_("a variable in register %s"), |
1137 | gdbarch_register_name (current_gdbarch, val)); | |
c906108c SS |
1138 | break; |
1139 | ||
1140 | case LOC_STATIC: | |
a3f17187 | 1141 | printf_filtered (_("static storage at address ")); |
ed49a04f MD |
1142 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1143 | gdb_stdout); | |
c906108c SS |
1144 | if (section_is_overlay (section)) |
1145 | { | |
1146 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1147 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1148 | fputs_filtered (paddress (load_addr), gdb_stdout); |
a3f17187 | 1149 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1150 | } |
1151 | break; | |
1152 | ||
1153 | case LOC_INDIRECT: | |
a3f17187 | 1154 | printf_filtered (_("external global (indirect addressing), at address *(")); |
ed49a04f MD |
1155 | fputs_filtered (paddress (load_addr = SYMBOL_VALUE_ADDRESS (sym)), |
1156 | gdb_stdout); | |
c906108c SS |
1157 | printf_filtered (")"); |
1158 | if (section_is_overlay (section)) | |
1159 | { | |
1160 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1161 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1162 | fputs_filtered (paddress (load_addr), gdb_stdout); |
a3f17187 | 1163 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1164 | } |
1165 | break; | |
1166 | ||
1167 | case LOC_REGPARM: | |
c9f4d572 UW |
1168 | printf_filtered (_("an argument in register %s"), |
1169 | gdbarch_register_name (current_gdbarch, val)); | |
c906108c SS |
1170 | break; |
1171 | ||
1172 | case LOC_REGPARM_ADDR: | |
675dcf4f | 1173 | printf_filtered (_("address of an argument in register %s"), |
c9f4d572 | 1174 | gdbarch_register_name (current_gdbarch, val)); |
c906108c SS |
1175 | break; |
1176 | ||
1177 | case LOC_ARG: | |
a3f17187 | 1178 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1179 | break; |
1180 | ||
1181 | case LOC_LOCAL_ARG: | |
a3f17187 | 1182 | printf_filtered (_("an argument at frame offset %ld"), val); |
c906108c SS |
1183 | break; |
1184 | ||
1185 | case LOC_LOCAL: | |
a3f17187 | 1186 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1187 | break; |
1188 | ||
1189 | case LOC_REF_ARG: | |
a3f17187 | 1190 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1191 | break; |
1192 | ||
1193 | case LOC_BASEREG: | |
a3f17187 | 1194 | printf_filtered (_("a variable at offset %ld from register %s"), |
c9f4d572 | 1195 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1196 | break; |
1197 | ||
1198 | case LOC_BASEREG_ARG: | |
a3f17187 | 1199 | printf_filtered (_("an argument at offset %ld from register %s"), |
c9f4d572 | 1200 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1201 | break; |
1202 | ||
1203 | case LOC_TYPEDEF: | |
a3f17187 | 1204 | printf_filtered (_("a typedef")); |
c906108c SS |
1205 | break; |
1206 | ||
1207 | case LOC_BLOCK: | |
a3f17187 | 1208 | printf_filtered (_("a function at address ")); |
675dcf4f | 1209 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
ed49a04f | 1210 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1211 | if (section_is_overlay (section)) |
1212 | { | |
1213 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1214 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1215 | fputs_filtered (paddress (load_addr), gdb_stdout); |
a3f17187 | 1216 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1217 | } |
1218 | break; | |
1219 | ||
1220 | case LOC_UNRESOLVED: | |
1221 | { | |
1222 | struct minimal_symbol *msym; | |
1223 | ||
22abf04a | 1224 | msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym), NULL, NULL); |
c906108c SS |
1225 | if (msym == NULL) |
1226 | printf_filtered ("unresolved"); | |
1227 | else | |
1228 | { | |
1229 | section = SYMBOL_BFD_SECTION (msym); | |
a3f17187 | 1230 | printf_filtered (_("static storage at address ")); |
675dcf4f | 1231 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
ed49a04f | 1232 | fputs_filtered (paddress (load_addr), gdb_stdout); |
c906108c SS |
1233 | if (section_is_overlay (section)) |
1234 | { | |
1235 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1236 | printf_filtered (_(",\n -- loaded at ")); |
ed49a04f | 1237 | fputs_filtered (paddress (load_addr), gdb_stdout); |
a3f17187 | 1238 | printf_filtered (_(" in overlay section %s"), section->name); |
c906108c SS |
1239 | } |
1240 | } | |
1241 | } | |
1242 | break; | |
1243 | ||
407caf07 | 1244 | case LOC_HP_THREAD_LOCAL_STATIC: |
675dcf4f MK |
1245 | printf_filtered (_("\ |
1246 | a thread-local variable at offset %ld from the thread base register %s"), | |
c9f4d572 | 1247 | val, gdbarch_register_name (current_gdbarch, basereg)); |
c906108c SS |
1248 | break; |
1249 | ||
1250 | case LOC_OPTIMIZED_OUT: | |
a3f17187 | 1251 | printf_filtered (_("optimized out")); |
c906108c | 1252 | break; |
c5aa993b | 1253 | |
c906108c | 1254 | default: |
a3f17187 | 1255 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1256 | break; |
1257 | } | |
1258 | printf_filtered (".\n"); | |
1259 | } | |
1260 | \f | |
675dcf4f MK |
1261 | |
1262 | static void | |
fba45db2 | 1263 | x_command (char *exp, int from_tty) |
c906108c SS |
1264 | { |
1265 | struct expression *expr; | |
1266 | struct format_data fmt; | |
1267 | struct cleanup *old_chain; | |
1268 | struct value *val; | |
1269 | ||
1270 | fmt.format = last_format; | |
1271 | fmt.size = last_size; | |
1272 | fmt.count = 1; | |
1273 | ||
1274 | if (exp && *exp == '/') | |
1275 | { | |
1276 | exp++; | |
1277 | fmt = decode_format (&exp, last_format, last_size); | |
1278 | } | |
1279 | ||
1280 | /* If we have an expression, evaluate it and use it as the address. */ | |
1281 | ||
1282 | if (exp != 0 && *exp != 0) | |
1283 | { | |
1284 | expr = parse_expression (exp); | |
675dcf4f MK |
1285 | /* Cause expression not to be there any more if this command is |
1286 | repeated with Newline. But don't clobber a user-defined | |
1287 | command's definition. */ | |
c906108c SS |
1288 | if (from_tty) |
1289 | *exp = 0; | |
c13c43fd | 1290 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1291 | val = evaluate_expression (expr); |
df407dfe | 1292 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
c906108c SS |
1293 | val = value_ind (val); |
1294 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1295 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1296 | if (/* last_format == 'i' && */ |
df407dfe | 1297 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1298 | && VALUE_LVAL (val) == lval_memory) |
c906108c SS |
1299 | next_address = VALUE_ADDRESS (val); |
1300 | else | |
1aa20aa8 | 1301 | next_address = value_as_address (val); |
c906108c SS |
1302 | do_cleanups (old_chain); |
1303 | } | |
1304 | ||
00a4c844 | 1305 | do_examine (fmt, next_address); |
c906108c | 1306 | |
675dcf4f MK |
1307 | /* If the examine succeeds, we remember its size and format for next |
1308 | time. */ | |
c906108c SS |
1309 | last_size = fmt.size; |
1310 | last_format = fmt.format; | |
1311 | ||
1312 | /* Set a couple of internal variables if appropriate. */ | |
1313 | if (last_examine_value) | |
1314 | { | |
1315 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1316 | the correct pointer type. */ |
4478b372 | 1317 | struct type *pointer_type |
df407dfe | 1318 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1319 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1320 | value_from_pointer (pointer_type, |
1321 | last_examine_address)); | |
c5aa993b | 1322 | |
675dcf4f MK |
1323 | /* Make contents of last address examined available to the user |
1324 | as $__. If the last value has not been fetched from memory | |
1325 | then don't fetch it now; instead mark it by voiding the $__ | |
1326 | variable. */ | |
d69fe07e | 1327 | if (value_lazy (last_examine_value)) |
c906108c SS |
1328 | set_internalvar (lookup_internalvar ("__"), |
1329 | allocate_value (builtin_type_void)); | |
1330 | else | |
1331 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1332 | } | |
1333 | } | |
c906108c | 1334 | \f |
c5aa993b | 1335 | |
c906108c SS |
1336 | /* Add an expression to the auto-display chain. |
1337 | Specify the expression. */ | |
1338 | ||
1339 | static void | |
fba45db2 | 1340 | display_command (char *exp, int from_tty) |
c906108c SS |
1341 | { |
1342 | struct format_data fmt; | |
52f0bd74 AC |
1343 | struct expression *expr; |
1344 | struct display *new; | |
c906108c SS |
1345 | int display_it = 1; |
1346 | ||
1347 | #if defined(TUI) | |
021e7609 AC |
1348 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1349 | `tui_version'. */ | |
fd33e6cb | 1350 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1351 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1352 | #endif |
1353 | ||
1354 | if (display_it) | |
1355 | { | |
1356 | if (exp == 0) | |
1357 | { | |
1358 | do_displays (); | |
1359 | return; | |
1360 | } | |
1361 | ||
1362 | if (*exp == '/') | |
1363 | { | |
1364 | exp++; | |
1365 | fmt = decode_format (&exp, 0, 0); | |
1366 | if (fmt.size && fmt.format == 0) | |
1367 | fmt.format = 'x'; | |
1368 | if (fmt.format == 'i' || fmt.format == 's') | |
1369 | fmt.size = 'b'; | |
1370 | } | |
1371 | else | |
1372 | { | |
1373 | fmt.format = 0; | |
1374 | fmt.size = 0; | |
1375 | fmt.count = 0; | |
1376 | } | |
1377 | ||
1378 | innermost_block = 0; | |
1379 | expr = parse_expression (exp); | |
1380 | ||
1381 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1382 | ||
1383 | new->exp = expr; | |
1384 | new->block = innermost_block; | |
1385 | new->next = display_chain; | |
1386 | new->number = ++display_number; | |
1387 | new->format = fmt; | |
b5de0fa7 | 1388 | new->enabled_p = 1; |
c906108c SS |
1389 | display_chain = new; |
1390 | ||
1391 | if (from_tty && target_has_execution) | |
1392 | do_one_display (new); | |
1393 | ||
1394 | dont_repeat (); | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | static void | |
fba45db2 | 1399 | free_display (struct display *d) |
c906108c | 1400 | { |
b8c9b27d KB |
1401 | xfree (d->exp); |
1402 | xfree (d); | |
c906108c SS |
1403 | } |
1404 | ||
675dcf4f MK |
1405 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1406 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1407 | |
1408 | void | |
fba45db2 | 1409 | clear_displays (void) |
c906108c | 1410 | { |
52f0bd74 | 1411 | struct display *d; |
c906108c SS |
1412 | |
1413 | while ((d = display_chain) != NULL) | |
1414 | { | |
b8c9b27d | 1415 | xfree (d->exp); |
c906108c | 1416 | display_chain = d->next; |
b8c9b27d | 1417 | xfree (d); |
c906108c SS |
1418 | } |
1419 | } | |
1420 | ||
1421 | /* Delete the auto-display number NUM. */ | |
1422 | ||
1423 | static void | |
fba45db2 | 1424 | delete_display (int num) |
c906108c | 1425 | { |
52f0bd74 | 1426 | struct display *d1, *d; |
c906108c SS |
1427 | |
1428 | if (!display_chain) | |
8a3fe4f8 | 1429 | error (_("No display number %d."), num); |
c906108c SS |
1430 | |
1431 | if (display_chain->number == num) | |
1432 | { | |
1433 | d1 = display_chain; | |
1434 | display_chain = d1->next; | |
1435 | free_display (d1); | |
1436 | } | |
1437 | else | |
c5aa993b | 1438 | for (d = display_chain;; d = d->next) |
c906108c SS |
1439 | { |
1440 | if (d->next == 0) | |
8a3fe4f8 | 1441 | error (_("No display number %d."), num); |
c906108c SS |
1442 | if (d->next->number == num) |
1443 | { | |
1444 | d1 = d->next; | |
1445 | d->next = d1->next; | |
1446 | free_display (d1); | |
1447 | break; | |
1448 | } | |
1449 | } | |
1450 | } | |
1451 | ||
1452 | /* Delete some values from the auto-display chain. | |
1453 | Specify the element numbers. */ | |
1454 | ||
1455 | static void | |
fba45db2 | 1456 | undisplay_command (char *args, int from_tty) |
c906108c | 1457 | { |
52f0bd74 AC |
1458 | char *p = args; |
1459 | char *p1; | |
1460 | int num; | |
c906108c SS |
1461 | |
1462 | if (args == 0) | |
1463 | { | |
1464 | if (query ("Delete all auto-display expressions? ")) | |
1465 | clear_displays (); | |
1466 | dont_repeat (); | |
1467 | return; | |
1468 | } | |
1469 | ||
1470 | while (*p) | |
1471 | { | |
1472 | p1 = p; | |
c5aa993b JM |
1473 | while (*p1 >= '0' && *p1 <= '9') |
1474 | p1++; | |
c906108c | 1475 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
8a3fe4f8 | 1476 | error (_("Arguments must be display numbers.")); |
c906108c SS |
1477 | |
1478 | num = atoi (p); | |
1479 | ||
1480 | delete_display (num); | |
1481 | ||
1482 | p = p1; | |
c5aa993b JM |
1483 | while (*p == ' ' || *p == '\t') |
1484 | p++; | |
c906108c SS |
1485 | } |
1486 | dont_repeat (); | |
1487 | } | |
1488 | ||
1489 | /* Display a single auto-display. | |
1490 | Do nothing if the display cannot be printed in the current context, | |
1491 | or if the display is disabled. */ | |
1492 | ||
1493 | static void | |
fba45db2 | 1494 | do_one_display (struct display *d) |
c906108c SS |
1495 | { |
1496 | int within_current_scope; | |
1497 | ||
b5de0fa7 | 1498 | if (d->enabled_p == 0) |
c906108c SS |
1499 | return; |
1500 | ||
1501 | if (d->block) | |
ae767bfb | 1502 | within_current_scope = contained_in (get_selected_block (0), d->block); |
c906108c SS |
1503 | else |
1504 | within_current_scope = 1; | |
1505 | if (!within_current_scope) | |
1506 | return; | |
1507 | ||
1508 | current_display_number = d->number; | |
1509 | ||
1510 | annotate_display_begin (); | |
1511 | printf_filtered ("%d", d->number); | |
1512 | annotate_display_number_end (); | |
1513 | printf_filtered (": "); | |
1514 | if (d->format.size) | |
1515 | { | |
1516 | CORE_ADDR addr; | |
3d6d86c6 | 1517 | struct value *val; |
c906108c SS |
1518 | |
1519 | annotate_display_format (); | |
1520 | ||
1521 | printf_filtered ("x/"); | |
1522 | if (d->format.count != 1) | |
1523 | printf_filtered ("%d", d->format.count); | |
1524 | printf_filtered ("%c", d->format.format); | |
1525 | if (d->format.format != 'i' && d->format.format != 's') | |
1526 | printf_filtered ("%c", d->format.size); | |
1527 | printf_filtered (" "); | |
1528 | ||
1529 | annotate_display_expression (); | |
1530 | ||
1531 | print_expression (d->exp, gdb_stdout); | |
1532 | annotate_display_expression_end (); | |
1533 | ||
6a2eb474 | 1534 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1535 | printf_filtered ("\n"); |
1536 | else | |
1537 | printf_filtered (" "); | |
c5aa993b | 1538 | |
c906108c | 1539 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1540 | addr = value_as_address (val); |
c906108c | 1541 | if (d->format.format == 'i') |
bf6ae464 | 1542 | addr = gdbarch_addr_bits_remove (current_gdbarch, addr); |
c906108c SS |
1543 | |
1544 | annotate_display_value (); | |
1545 | ||
00a4c844 | 1546 | do_examine (d->format, addr); |
c906108c SS |
1547 | } |
1548 | else | |
1549 | { | |
1550 | annotate_display_format (); | |
1551 | ||
1552 | if (d->format.format) | |
1553 | printf_filtered ("/%c ", d->format.format); | |
1554 | ||
1555 | annotate_display_expression (); | |
1556 | ||
1557 | print_expression (d->exp, gdb_stdout); | |
1558 | annotate_display_expression_end (); | |
1559 | ||
1560 | printf_filtered (" = "); | |
1561 | ||
1562 | annotate_display_expression (); | |
1563 | ||
1564 | print_formatted (evaluate_expression (d->exp), | |
2acceee2 | 1565 | d->format.format, d->format.size, gdb_stdout); |
c906108c SS |
1566 | printf_filtered ("\n"); |
1567 | } | |
1568 | ||
1569 | annotate_display_end (); | |
1570 | ||
1571 | gdb_flush (gdb_stdout); | |
1572 | current_display_number = -1; | |
1573 | } | |
1574 | ||
1575 | /* Display all of the values on the auto-display chain which can be | |
1576 | evaluated in the current scope. */ | |
1577 | ||
1578 | void | |
fba45db2 | 1579 | do_displays (void) |
c906108c | 1580 | { |
52f0bd74 | 1581 | struct display *d; |
c906108c SS |
1582 | |
1583 | for (d = display_chain; d; d = d->next) | |
1584 | do_one_display (d); | |
1585 | } | |
1586 | ||
1587 | /* Delete the auto-display which we were in the process of displaying. | |
1588 | This is done when there is an error or a signal. */ | |
1589 | ||
1590 | void | |
fba45db2 | 1591 | disable_display (int num) |
c906108c | 1592 | { |
52f0bd74 | 1593 | struct display *d; |
c906108c SS |
1594 | |
1595 | for (d = display_chain; d; d = d->next) | |
1596 | if (d->number == num) | |
1597 | { | |
b5de0fa7 | 1598 | d->enabled_p = 0; |
c906108c SS |
1599 | return; |
1600 | } | |
a3f17187 | 1601 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1602 | } |
c5aa993b | 1603 | |
c906108c | 1604 | void |
fba45db2 | 1605 | disable_current_display (void) |
c906108c SS |
1606 | { |
1607 | if (current_display_number >= 0) | |
1608 | { | |
1609 | disable_display (current_display_number); | |
675dcf4f MK |
1610 | fprintf_unfiltered (gdb_stderr, _("\ |
1611 | Disabling display %d to avoid infinite recursion.\n"), | |
c5aa993b | 1612 | current_display_number); |
c906108c SS |
1613 | } |
1614 | current_display_number = -1; | |
1615 | } | |
1616 | ||
1617 | static void | |
fba45db2 | 1618 | display_info (char *ignore, int from_tty) |
c906108c | 1619 | { |
52f0bd74 | 1620 | struct display *d; |
c906108c SS |
1621 | |
1622 | if (!display_chain) | |
a3f17187 | 1623 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1624 | else |
a3f17187 AC |
1625 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1626 | Num Enb Expression\n")); | |
c906108c SS |
1627 | |
1628 | for (d = display_chain; d; d = d->next) | |
1629 | { | |
b5de0fa7 | 1630 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1631 | if (d->format.size) |
1632 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1633 | d->format.format); |
c906108c SS |
1634 | else if (d->format.format) |
1635 | printf_filtered ("/%c ", d->format.format); | |
1636 | print_expression (d->exp, gdb_stdout); | |
ae767bfb | 1637 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1638 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1639 | printf_filtered ("\n"); |
1640 | gdb_flush (gdb_stdout); | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | static void | |
fba45db2 | 1645 | enable_display (char *args, int from_tty) |
c906108c | 1646 | { |
52f0bd74 AC |
1647 | char *p = args; |
1648 | char *p1; | |
1649 | int num; | |
1650 | struct display *d; | |
c906108c SS |
1651 | |
1652 | if (p == 0) | |
1653 | { | |
1654 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1655 | d->enabled_p = 1; |
c906108c SS |
1656 | } |
1657 | else | |
1658 | while (*p) | |
1659 | { | |
1660 | p1 = p; | |
1661 | while (*p1 >= '0' && *p1 <= '9') | |
1662 | p1++; | |
1663 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1664 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1665 | |
c906108c | 1666 | num = atoi (p); |
c5aa993b | 1667 | |
c906108c SS |
1668 | for (d = display_chain; d; d = d->next) |
1669 | if (d->number == num) | |
1670 | { | |
b5de0fa7 | 1671 | d->enabled_p = 1; |
c906108c SS |
1672 | goto win; |
1673 | } | |
a3f17187 | 1674 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c SS |
1675 | win: |
1676 | p = p1; | |
1677 | while (*p == ' ' || *p == '\t') | |
1678 | p++; | |
1679 | } | |
1680 | } | |
1681 | ||
c906108c | 1682 | static void |
fba45db2 | 1683 | disable_display_command (char *args, int from_tty) |
c906108c | 1684 | { |
52f0bd74 AC |
1685 | char *p = args; |
1686 | char *p1; | |
1687 | struct display *d; | |
c906108c SS |
1688 | |
1689 | if (p == 0) | |
1690 | { | |
1691 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1692 | d->enabled_p = 0; |
c906108c SS |
1693 | } |
1694 | else | |
1695 | while (*p) | |
1696 | { | |
1697 | p1 = p; | |
1698 | while (*p1 >= '0' && *p1 <= '9') | |
1699 | p1++; | |
1700 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
8a3fe4f8 | 1701 | error (_("Arguments must be display numbers.")); |
c5aa993b | 1702 | |
c906108c SS |
1703 | disable_display (atoi (p)); |
1704 | ||
1705 | p = p1; | |
1706 | while (*p == ' ' || *p == '\t') | |
1707 | p++; | |
1708 | } | |
1709 | } | |
c906108c | 1710 | \f |
c5aa993b | 1711 | |
675dcf4f MK |
1712 | /* Print the value in stack frame FRAME of a variable specified by a |
1713 | struct symbol. */ | |
c906108c SS |
1714 | |
1715 | void | |
fba45db2 KB |
1716 | print_variable_value (struct symbol *var, struct frame_info *frame, |
1717 | struct ui_file *stream) | |
c906108c | 1718 | { |
3d6d86c6 | 1719 | struct value *val = read_var_value (var, frame); |
c906108c SS |
1720 | |
1721 | value_print (val, stream, 0, Val_pretty_default); | |
1722 | } | |
1723 | ||
c906108c | 1724 | static void |
fba45db2 | 1725 | printf_command (char *arg, int from_tty) |
c906108c | 1726 | { |
52f0bd74 AC |
1727 | char *f = NULL; |
1728 | char *s = arg; | |
c906108c | 1729 | char *string = NULL; |
3d6d86c6 | 1730 | struct value **val_args; |
c906108c SS |
1731 | char *substrings; |
1732 | char *current_substring; | |
1733 | int nargs = 0; | |
1734 | int allocated_args = 20; | |
1735 | struct cleanup *old_cleanups; | |
1736 | ||
675dcf4f | 1737 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 1738 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
1739 | |
1740 | if (s == 0) | |
e2e0b3e5 | 1741 | error_no_arg (_("format-control string and values to print")); |
c906108c SS |
1742 | |
1743 | /* Skip white space before format string */ | |
c5aa993b JM |
1744 | while (*s == ' ' || *s == '\t') |
1745 | s++; | |
c906108c | 1746 | |
675dcf4f | 1747 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 1748 | if (*s++ != '"') |
8a3fe4f8 | 1749 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
1750 | |
1751 | /* Parse the format-control string and copy it into the string STRING, | |
1752 | processing some kinds of escape sequence. */ | |
1753 | ||
1754 | f = string = (char *) alloca (strlen (s) + 1); | |
1755 | ||
1756 | while (*s != '"') | |
1757 | { | |
1758 | int c = *s++; | |
1759 | switch (c) | |
1760 | { | |
1761 | case '\0': | |
8a3fe4f8 | 1762 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
1763 | |
1764 | case '\\': | |
1765 | switch (c = *s++) | |
1766 | { | |
1767 | case '\\': | |
1768 | *f++ = '\\'; | |
1769 | break; | |
1770 | case 'a': | |
c906108c | 1771 | *f++ = '\a'; |
c906108c SS |
1772 | break; |
1773 | case 'b': | |
1774 | *f++ = '\b'; | |
1775 | break; | |
1776 | case 'f': | |
1777 | *f++ = '\f'; | |
1778 | break; | |
1779 | case 'n': | |
1780 | *f++ = '\n'; | |
1781 | break; | |
1782 | case 'r': | |
1783 | *f++ = '\r'; | |
1784 | break; | |
1785 | case 't': | |
1786 | *f++ = '\t'; | |
1787 | break; | |
1788 | case 'v': | |
1789 | *f++ = '\v'; | |
1790 | break; | |
1791 | case '"': | |
1792 | *f++ = '"'; | |
1793 | break; | |
1794 | default: | |
1795 | /* ??? TODO: handle other escape sequences */ | |
8a3fe4f8 | 1796 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
1797 | c); |
1798 | } | |
1799 | break; | |
1800 | ||
1801 | default: | |
1802 | *f++ = c; | |
1803 | } | |
1804 | } | |
1805 | ||
1806 | /* Skip over " and following space and comma. */ | |
1807 | s++; | |
1808 | *f++ = '\0'; | |
c5aa993b JM |
1809 | while (*s == ' ' || *s == '\t') |
1810 | s++; | |
c906108c SS |
1811 | |
1812 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 1813 | error (_("Invalid argument syntax")); |
c906108c | 1814 | |
c5aa993b JM |
1815 | if (*s == ',') |
1816 | s++; | |
1817 | while (*s == ' ' || *s == '\t') | |
1818 | s++; | |
c906108c SS |
1819 | |
1820 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
1821 | substrings = alloca (strlen (string) * 2); | |
1822 | current_substring = substrings; | |
1823 | ||
1824 | { | |
1825 | /* Now scan the string for %-specs and see what kinds of args they want. | |
1826 | argclass[I] classifies the %-specs so we can give printf_filtered | |
1827 | something of the right size. */ | |
1828 | ||
c5aa993b JM |
1829 | enum argclass |
1830 | { | |
46e9880c | 1831 | int_arg, long_arg, long_long_arg, ptr_arg, string_arg, |
1a619819 | 1832 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 1833 | }; |
c906108c SS |
1834 | enum argclass *argclass; |
1835 | enum argclass this_argclass; | |
1836 | char *last_arg; | |
1837 | int nargs_wanted; | |
c906108c SS |
1838 | int i; |
1839 | ||
1840 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
1841 | nargs_wanted = 0; | |
1842 | f = string; | |
1843 | last_arg = string; | |
1844 | while (*f) | |
1845 | if (*f++ == '%') | |
1846 | { | |
46e9880c DJ |
1847 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
1848 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
1849 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
1850 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
1851 | int bad = 0; |
1852 | ||
1853 | /* Check the validity of the format specifier, and work | |
1854 | out what argument it expects. We only accept C89 | |
1855 | format strings, with the exception of long long (which | |
1856 | we autoconf for). */ | |
1857 | ||
1858 | /* Skip over "%%". */ | |
1859 | if (*f == '%') | |
c906108c | 1860 | { |
c906108c | 1861 | f++; |
46e9880c | 1862 | continue; |
c906108c | 1863 | } |
46e9880c DJ |
1864 | |
1865 | /* The first part of a format specifier is a set of flag | |
1866 | characters. */ | |
1867 | while (strchr ("0-+ #", *f)) | |
1868 | { | |
1869 | if (*f == '#') | |
1870 | seen_hash = 1; | |
1871 | else if (*f == '0') | |
1872 | seen_zero = 1; | |
1873 | else if (*f == ' ') | |
1874 | seen_space = 1; | |
1875 | else if (*f == '+') | |
1876 | seen_plus = 1; | |
1877 | f++; | |
1878 | } | |
1879 | ||
1880 | /* The next part of a format specifier is a width. */ | |
1881 | while (strchr ("0123456789", *f)) | |
1882 | f++; | |
1883 | ||
1884 | /* The next part of a format specifier is a precision. */ | |
1885 | if (*f == '.') | |
1886 | { | |
1887 | seen_prec = 1; | |
1888 | f++; | |
1889 | while (strchr ("0123456789", *f)) | |
1890 | f++; | |
1891 | } | |
1892 | ||
1893 | /* The next part of a format specifier is a length modifier. */ | |
1894 | if (*f == 'h') | |
1895 | { | |
1896 | seen_h = 1; | |
1897 | f++; | |
1898 | } | |
1899 | else if (*f == 'l') | |
1900 | { | |
1901 | f++; | |
1902 | lcount++; | |
1903 | if (*f == 'l') | |
1904 | { | |
1905 | f++; | |
1906 | lcount++; | |
1907 | } | |
1908 | } | |
1909 | else if (*f == 'L') | |
1910 | { | |
1911 | seen_big_l = 1; | |
1912 | f++; | |
1913 | } | |
0aea4bf3 LM |
1914 | /* Decimal32 modifier. */ |
1915 | else if (*f == 'H') | |
1916 | { | |
1917 | seen_big_h = 1; | |
1918 | f++; | |
1919 | } | |
1920 | /* Decimal64 and Decimal128 modifiers. */ | |
1921 | else if (*f == 'D') | |
1922 | { | |
1923 | f++; | |
1924 | ||
1925 | /* Check for a Decimal128. */ | |
1926 | if (*f == 'D') | |
1927 | { | |
1928 | f++; | |
1929 | seen_double_big_d = 1; | |
1930 | } | |
1931 | else | |
1932 | seen_big_d = 1; | |
1933 | } | |
46e9880c | 1934 | |
c906108c SS |
1935 | switch (*f) |
1936 | { | |
46e9880c DJ |
1937 | case 'u': |
1938 | if (seen_hash) | |
1939 | bad = 1; | |
1940 | /* FALLTHROUGH */ | |
1941 | ||
1942 | case 'o': | |
1943 | case 'x': | |
1944 | case 'X': | |
1945 | if (seen_space || seen_plus) | |
1946 | bad = 1; | |
1947 | /* FALLTHROUGH */ | |
1948 | ||
1949 | case 'd': | |
1950 | case 'i': | |
1951 | if (lcount == 0) | |
1952 | this_argclass = int_arg; | |
1953 | else if (lcount == 1) | |
1954 | this_argclass = long_arg; | |
1955 | else | |
1956 | this_argclass = long_long_arg; | |
1957 | ||
1958 | if (seen_big_l) | |
1959 | bad = 1; | |
1960 | break; | |
1961 | ||
1962 | case 'c': | |
1963 | this_argclass = int_arg; | |
1964 | if (lcount || seen_h || seen_big_l) | |
1965 | bad = 1; | |
1966 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1967 | bad = 1; | |
1968 | break; | |
1969 | ||
1970 | case 'p': | |
1971 | this_argclass = ptr_arg; | |
1972 | if (lcount || seen_h || seen_big_l) | |
1973 | bad = 1; | |
1974 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
1975 | bad = 1; | |
1976 | break; | |
1977 | ||
c906108c SS |
1978 | case 's': |
1979 | this_argclass = string_arg; | |
46e9880c DJ |
1980 | if (lcount || seen_h || seen_big_l) |
1981 | bad = 1; | |
1982 | if (seen_zero || seen_space || seen_plus) | |
1983 | bad = 1; | |
c906108c SS |
1984 | break; |
1985 | ||
1986 | case 'e': | |
1987 | case 'f': | |
1988 | case 'g': | |
46e9880c DJ |
1989 | case 'E': |
1990 | case 'G': | |
0aea4bf3 LM |
1991 | if (seen_big_h || seen_big_d || seen_double_big_d) |
1992 | this_argclass = decfloat_arg; | |
1993 | else if (seen_big_l) | |
46e9880c DJ |
1994 | this_argclass = long_double_arg; |
1995 | else | |
1996 | this_argclass = double_arg; | |
1997 | ||
1998 | if (lcount || seen_h) | |
1999 | bad = 1; | |
c906108c SS |
2000 | break; |
2001 | ||
2002 | case '*': | |
8a3fe4f8 | 2003 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2004 | |
2005 | case 'n': | |
8a3fe4f8 | 2006 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2007 | |
46e9880c DJ |
2008 | case '\0': |
2009 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2010 | |
2011 | default: | |
46e9880c | 2012 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2013 | } |
46e9880c DJ |
2014 | |
2015 | if (bad) | |
2016 | error (_("Inappropriate modifiers to format specifier '%c' in printf"), | |
2017 | *f); | |
2018 | ||
c906108c | 2019 | f++; |
09d71d23 AS |
2020 | |
2021 | if (lcount > 1 && USE_PRINTF_I64) | |
2022 | { | |
2023 | /* Windows' printf does support long long, but not the usual way. | |
2024 | Convert %lld to %I64d. */ | |
2025 | int length_before_ll = f - last_arg - 1 - lcount; | |
2026 | strncpy (current_substring, last_arg, length_before_ll); | |
2027 | strcpy (current_substring + length_before_ll, "I64"); | |
2028 | current_substring[length_before_ll + 3] = | |
2029 | last_arg[length_before_ll + lcount]; | |
2030 | current_substring += length_before_ll + 4; | |
2031 | } | |
2032 | else | |
2033 | { | |
2034 | strncpy (current_substring, last_arg, f - last_arg); | |
2035 | current_substring += f - last_arg; | |
2036 | } | |
46e9880c DJ |
2037 | *current_substring++ = '\0'; |
2038 | last_arg = f; | |
2039 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2040 | } |
2041 | ||
2042 | /* Now, parse all arguments and evaluate them. | |
2043 | Store the VALUEs in VAL_ARGS. */ | |
2044 | ||
2045 | while (*s != '\0') | |
2046 | { | |
2047 | char *s1; | |
2048 | if (nargs == allocated_args) | |
f976f6d4 AC |
2049 | val_args = (struct value **) xrealloc ((char *) val_args, |
2050 | (allocated_args *= 2) | |
2051 | * sizeof (struct value *)); | |
c906108c SS |
2052 | s1 = s; |
2053 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2054 | |
c906108c SS |
2055 | /* If format string wants a float, unchecked-convert the value to |
2056 | floating point of the same size */ | |
c5aa993b | 2057 | |
c906108c SS |
2058 | if (argclass[nargs] == double_arg) |
2059 | { | |
df407dfe | 2060 | struct type *type = value_type (val_args[nargs]); |
c906108c | 2061 | if (TYPE_LENGTH (type) == sizeof (float)) |
04624583 | 2062 | deprecated_set_value_type (val_args[nargs], builtin_type_float); |
c906108c | 2063 | if (TYPE_LENGTH (type) == sizeof (double)) |
04624583 | 2064 | deprecated_set_value_type (val_args[nargs], builtin_type_double); |
c906108c SS |
2065 | } |
2066 | nargs++; | |
2067 | s = s1; | |
2068 | if (*s == ',') | |
2069 | s++; | |
2070 | } | |
c5aa993b | 2071 | |
c906108c | 2072 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2073 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2074 | |
2075 | /* Now actually print them. */ | |
2076 | current_substring = substrings; | |
2077 | for (i = 0; i < nargs; i++) | |
2078 | { | |
2079 | switch (argclass[i]) | |
2080 | { | |
2081 | case string_arg: | |
2082 | { | |
777ea8f1 | 2083 | gdb_byte *str; |
c906108c SS |
2084 | CORE_ADDR tem; |
2085 | int j; | |
1aa20aa8 | 2086 | tem = value_as_address (val_args[i]); |
c906108c SS |
2087 | |
2088 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2089 | for (j = 0;; j++) |
c906108c | 2090 | { |
777ea8f1 | 2091 | gdb_byte c; |
c906108c | 2092 | QUIT; |
d4b2399a | 2093 | read_memory (tem + j, &c, 1); |
c906108c SS |
2094 | if (c == 0) |
2095 | break; | |
2096 | } | |
2097 | ||
2098 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2099 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2100 | if (j != 0) |
2101 | read_memory (tem, str, j); | |
c906108c SS |
2102 | str[j] = 0; |
2103 | ||
777ea8f1 | 2104 | printf_filtered (current_substring, (char *) str); |
c906108c SS |
2105 | } |
2106 | break; | |
2107 | case double_arg: | |
2108 | { | |
2109 | double val = value_as_double (val_args[i]); | |
2110 | printf_filtered (current_substring, val); | |
2111 | break; | |
2112 | } | |
46e9880c DJ |
2113 | case long_double_arg: |
2114 | #ifdef HAVE_LONG_DOUBLE | |
2115 | { | |
2116 | long double val = value_as_double (val_args[i]); | |
2117 | printf_filtered (current_substring, val); | |
2118 | break; | |
2119 | } | |
2120 | #else | |
2121 | error (_("long double not supported in printf")); | |
2122 | #endif | |
c906108c SS |
2123 | case long_long_arg: |
2124 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2125 | { | |
2126 | long long val = value_as_long (val_args[i]); | |
2127 | printf_filtered (current_substring, val); | |
2128 | break; | |
2129 | } | |
2130 | #else | |
8a3fe4f8 | 2131 | error (_("long long not supported in printf")); |
c906108c SS |
2132 | #endif |
2133 | case int_arg: | |
2134 | { | |
46e9880c DJ |
2135 | int val = value_as_long (val_args[i]); |
2136 | printf_filtered (current_substring, val); | |
2137 | break; | |
2138 | } | |
2139 | case long_arg: | |
2140 | { | |
c906108c SS |
2141 | long val = value_as_long (val_args[i]); |
2142 | printf_filtered (current_substring, val); | |
2143 | break; | |
2144 | } | |
1a619819 | 2145 | |
0aea4bf3 LM |
2146 | /* Handles decimal floating values. */ |
2147 | case decfloat_arg: | |
1a619819 | 2148 | { |
0aea4bf3 | 2149 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
1a619819 | 2150 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2151 | /* If we have native support for Decimal floating |
2152 | printing, handle it here. */ | |
2153 | printf_filtered (current_substring, param_ptr); | |
1a619819 | 2154 | #else |
1a619819 LM |
2155 | |
2156 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2157 | we convert the DFP values to string and print them using |
2158 | the %s format specifier. */ | |
2159 | ||
2160 | char *eos, *sos; | |
2161 | int nnull_chars = 0; | |
2162 | ||
2163 | /* Parameter data. */ | |
2164 | struct type *param_type = value_type (val_args[i]); | |
2165 | unsigned int param_len = TYPE_LENGTH (param_type); | |
2166 | ||
2167 | /* DFP output data. */ | |
2168 | struct value *dfp_value = NULL; | |
2169 | gdb_byte *dfp_ptr; | |
2170 | int dfp_len = 16; | |
2171 | gdb_byte dec[16]; | |
2172 | struct type *dfp_type = NULL; | |
2173 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2174 | |
2175 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2176 | and check for DFP length modifiers. */ |
1a619819 LM |
2177 | eos = current_substring + strlen (current_substring); |
2178 | ||
0aea4bf3 LM |
2179 | /* Look for the float/double format specifier. */ |
2180 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2181 | && *eos != 'g' && *eos != 'G') | |
2182 | eos--; | |
2183 | ||
2184 | sos = eos; | |
2185 | ||
2186 | /* Search for the '%' char and extract the size and type of | |
2187 | the output decimal value based on its modifiers | |
2188 | (%Hf, %Df, %DDf). */ | |
2189 | while (*--sos != '%') | |
2190 | { | |
2191 | if (*sos == 'H') | |
2192 | { | |
2193 | dfp_len = 4; | |
2194 | dfp_type = builtin_type (current_gdbarch)->builtin_decfloat; | |
2195 | } | |
2196 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2197 | { | |
2198 | dfp_len = 16; | |
2199 | dfp_type = builtin_type (current_gdbarch)->builtin_declong; | |
2200 | sos--; | |
2201 | } | |
2202 | else | |
2203 | { | |
2204 | dfp_len = 8; | |
2205 | dfp_type = builtin_type (current_gdbarch)->builtin_decdouble; | |
2206 | } | |
2207 | } | |
2208 | ||
2209 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2210 | *++sos = 's'; | |
2211 | ||
2212 | /* Go through the whole format string and pull the correct | |
2213 | number of chars back to compensate for the change in the | |
2214 | format specifier. */ | |
2215 | while (nnull_chars < nargs - i) | |
2216 | { | |
2217 | if (*eos == '\0') | |
2218 | nnull_chars++; | |
2219 | ||
2220 | *++sos = *++eos; | |
2221 | } | |
2222 | ||
2223 | /* Conversion between different DFP types. */ | |
2224 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
2225 | decimal_convert (param_ptr, param_len, dec, dfp_len); | |
2226 | else | |
2227 | /* If this is a non-trivial conversion, just output 0. | |
2228 | A correct converted value can be displayed by explicitly | |
2229 | casting to a DFP type. */ | |
2230 | decimal_from_string (dec, dfp_len, "0"); | |
2231 | ||
2232 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2233 | ||
2234 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2235 | ||
2236 | decimal_to_string (dfp_ptr, dfp_len, decstr); | |
1a619819 LM |
2237 | |
2238 | /* Print the DFP value. */ | |
2239 | printf_filtered (current_substring, decstr); | |
0aea4bf3 | 2240 | |
1a619819 LM |
2241 | break; |
2242 | #endif | |
2243 | } | |
2244 | ||
2025a643 DJ |
2245 | case ptr_arg: |
2246 | { | |
2247 | /* We avoid the host's %p because pointers are too | |
2248 | likely to be the wrong size. The only interesting | |
2249 | modifier for %p is a width; extract that, and then | |
2250 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2251 | ||
2252 | char *p, *fmt, *fmt_p; | |
2253 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2254 | long long val = value_as_long (val_args[i]); | |
2255 | #else | |
2256 | long val = value_as_long (val_args[i]); | |
2257 | #endif | |
2258 | ||
2259 | fmt = alloca (strlen (current_substring) + 5); | |
2260 | ||
2261 | /* Copy up to the leading %. */ | |
2262 | p = current_substring; | |
2263 | fmt_p = fmt; | |
2264 | while (*p) | |
2265 | { | |
2266 | int is_percent = (*p == '%'); | |
2267 | *fmt_p++ = *p++; | |
2268 | if (is_percent) | |
2269 | { | |
2270 | if (*p == '%') | |
2271 | *fmt_p++ = *p++; | |
2272 | else | |
2273 | break; | |
2274 | } | |
2275 | } | |
2276 | ||
2277 | if (val != 0) | |
2278 | *fmt_p++ = '#'; | |
2279 | ||
2280 | /* Copy any width. */ | |
2281 | while (*p >= '0' && *p < '9') | |
2282 | *fmt_p++ = *p++; | |
2283 | ||
2284 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2285 | if (val != 0) | |
2286 | { | |
2287 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2288 | *fmt_p++ = 'l'; | |
2289 | #endif | |
2290 | *fmt_p++ = 'l'; | |
2291 | *fmt_p++ = 'x'; | |
2292 | *fmt_p++ = '\0'; | |
2293 | printf_filtered (fmt, val); | |
2294 | } | |
2295 | else | |
2296 | { | |
2297 | *fmt_p++ = 's'; | |
2298 | *fmt_p++ = '\0'; | |
2299 | printf_filtered (fmt, "(nil)"); | |
2300 | } | |
2301 | ||
2302 | break; | |
2303 | } | |
675dcf4f MK |
2304 | default: |
2305 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2306 | _("failed internal consistency check")); |
c906108c SS |
2307 | } |
2308 | /* Skip to the next substring. */ | |
2309 | current_substring += strlen (current_substring) + 1; | |
2310 | } | |
2311 | /* Print the portion of the format string after the last argument. */ | |
306d9ac5 | 2312 | puts_filtered (last_arg); |
c906108c SS |
2313 | } |
2314 | do_cleanups (old_cleanups); | |
2315 | } | |
c906108c | 2316 | |
c906108c | 2317 | void |
fba45db2 | 2318 | _initialize_printcmd (void) |
c906108c | 2319 | { |
c94fdfd0 EZ |
2320 | struct cmd_list_element *c; |
2321 | ||
c906108c SS |
2322 | current_display_number = -1; |
2323 | ||
2324 | add_info ("address", address_info, | |
1bedd215 | 2325 | _("Describe where symbol SYM is stored.")); |
c906108c | 2326 | |
1bedd215 AC |
2327 | add_info ("symbol", sym_info, _("\ |
2328 | Describe what symbol is at location ADDR.\n\ | |
2329 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2330 | |
1bedd215 AC |
2331 | add_com ("x", class_vars, x_command, _("\ |
2332 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2333 | ADDRESS is an expression for the memory address to examine.\n\ |
2334 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2335 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2336 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2337 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2338 | The specified number of objects of the specified size are printed\n\ |
2339 | according to the format.\n\n\ | |
2340 | Defaults for format and size letters are those previously used.\n\ | |
2341 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2342 | with this command or \"print\".")); |
c906108c | 2343 | |
c906108c SS |
2344 | #if 0 |
2345 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2346 | _("Print line number and file of definition of variable.")); |
c906108c | 2347 | #endif |
c5aa993b | 2348 | |
1bedd215 AC |
2349 | add_info ("display", display_info, _("\ |
2350 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2351 | |
1a966eab AC |
2352 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2353 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2354 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2355 | No argument means cancel all automatic-display expressions.\n\ | |
2356 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2357 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2358 | &cmdlist); |
c906108c | 2359 | |
1bedd215 AC |
2360 | add_com ("display", class_vars, display_command, _("\ |
2361 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2362 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2363 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2364 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2365 | and examining is done as in the \"x\" command.\n\n\ | |
2366 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2367 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2368 | |
1a966eab AC |
2369 | add_cmd ("display", class_vars, enable_display, _("\ |
2370 | Enable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2371 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2372 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2373 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2374 | |
1a966eab AC |
2375 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2376 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2377 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2378 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2379 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2380 | |
1a966eab AC |
2381 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2382 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2383 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2384 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2385 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2386 | |
1bedd215 AC |
2387 | add_com ("printf", class_vars, printf_command, _("\ |
2388 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2389 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2390 | |
1bedd215 AC |
2391 | add_com ("output", class_vars, output_command, _("\ |
2392 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2393 | This is useful in user-defined commands.")); | |
c906108c | 2394 | |
1bedd215 AC |
2395 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2396 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2397 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2398 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2399 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2400 | variable in the program being debugged. EXP is any valid expression.\n\ |
2401 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2402 | \n\ | |
2403 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2404 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2405 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2406 | if (dbx_commands) |
1bedd215 AC |
2407 | add_com ("assign", class_vars, set_command, _("\ |
2408 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2409 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2410 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2411 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2412 | variable in the program being debugged. EXP is any valid expression.\n\ |
2413 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2414 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2415 | You can see these environment settings with the \"show\" command.")); |
c906108c SS |
2416 | |
2417 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
1bedd215 AC |
2418 | c = add_com ("call", class_vars, call_command, _("\ |
2419 | Call a function in the program.\n\ | |
c906108c SS |
2420 | The argument is the function name and arguments, in the notation of the\n\ |
2421 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2422 | history, if it is not void.")); |
5ba2abeb | 2423 | set_cmd_completer (c, location_completer); |
c906108c | 2424 | |
1a966eab AC |
2425 | add_cmd ("variable", class_vars, set_command, _("\ |
2426 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2427 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2428 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2429 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2430 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2431 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2432 | &setlist); |
c906108c | 2433 | |
1bedd215 AC |
2434 | c = add_com ("print", class_vars, print_command, _("\ |
2435 | Print value of expression EXP.\n\ | |
c906108c SS |
2436 | Variables accessible are those of the lexical environment of the selected\n\ |
2437 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2438 | \n\ | |
2439 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2440 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2441 | Names starting with $ refer to registers (with the values they would have\n\ |
2442 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2443 | all registers saved by frames farther in) or else to debugger\n\ |
2444 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2445 | Use assignment expressions to give values to convenience variables.\n\ |
2446 | \n\ | |
c906108c SS |
2447 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2448 | @ is a binary operator for treating consecutive data objects\n\ | |
2449 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2450 | element is FOO, whose second element is stored in the space following\n\ | |
2451 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2452 | resides in memory.\n\ |
2453 | \n\ | |
c906108c | 2454 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2455 | but no count or size letter (see \"x\" command).")); |
5ba2abeb | 2456 | set_cmd_completer (c, location_completer); |
c906108c SS |
2457 | add_com_alias ("p", "print", class_vars, 1); |
2458 | ||
1bedd215 AC |
2459 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2460 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2461 | environment, the value is printed in its own window.")); | |
5ba2abeb | 2462 | set_cmd_completer (c, location_completer); |
c906108c | 2463 | |
35096d9d AC |
2464 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2465 | &max_symbolic_offset, _("\ | |
2466 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2467 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2468 | NULL, | |
920d2a44 | 2469 | show_max_symbolic_offset, |
35096d9d | 2470 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2471 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2472 | &print_symbol_filename, _("\ | |
2473 | Set printing of source filename and line number with <symbol>."), _("\ | |
2474 | Show printing of source filename and line number with <symbol>."), NULL, | |
2475 | NULL, | |
920d2a44 | 2476 | show_print_symbol_filename, |
5bf193a2 | 2477 | &setprintlist, &showprintlist); |
c906108c SS |
2478 | |
2479 | /* For examine/instruction a single byte quantity is specified as | |
2480 | the data. This avoids problems with value_at_lazy() requiring a | |
2481 | valid data type (and rejecting VOID). */ | |
2482 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2483 | ||
2484 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2485 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2486 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2487 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2488 | ||
2489 | } |