Commit | Line | Data |
---|---|---|
bd5635a1 | 1 | /* Print values for GNU debugger GDB. |
7d9884b9 | 2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
36b9d39c | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
36b9d39c JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
36b9d39c | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
36b9d39c JG |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 19 | |
bd5635a1 | 20 | #include "defs.h" |
1eeba686 | 21 | #include <string.h> |
bd5635a1 RP |
22 | #include "frame.h" |
23 | #include "symtab.h" | |
93fe4e33 | 24 | #include "gdbtypes.h" |
bd5635a1 | 25 | #include "value.h" |
c4668207 | 26 | #include "language.h" |
bd5635a1 RP |
27 | #include "expression.h" |
28 | #include "gdbcore.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "target.h" | |
93fe4e33 | 31 | #include "breakpoint.h" |
4d38b5a8 | 32 | #include "demangle.h" |
bd5635a1 RP |
33 | |
34 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ | |
36b9d39c | 35 | extern int addressprint; /* Whether to print hex addresses in HLL " */ |
bd5635a1 | 36 | |
bd5635a1 RP |
37 | struct format_data |
38 | { | |
39 | int count; | |
40 | char format; | |
41 | char size; | |
42 | }; | |
43 | ||
44 | /* Last specified output format. */ | |
45 | ||
46 | static char last_format = 'x'; | |
47 | ||
48 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
49 | ||
50 | static char last_size = 'w'; | |
51 | ||
52 | /* Default address to examine next. */ | |
53 | ||
54 | static CORE_ADDR next_address; | |
55 | ||
56 | /* Last address examined. */ | |
57 | ||
58 | static CORE_ADDR last_examine_address; | |
59 | ||
60 | /* Contents of last address examined. | |
61 | This is not valid past the end of the `x' command! */ | |
62 | ||
63 | static value last_examine_value; | |
64 | ||
f77ad505 FF |
65 | /* Largest offset between a symbolic value and an address, that will be |
66 | printed as `0x1234 <symbol+offset>'. */ | |
67 | ||
68 | static unsigned int max_symbolic_offset = UINT_MAX; | |
69 | ||
bd5635a1 | 70 | /* Number of auto-display expression currently being displayed. |
f77ad505 | 71 | So that we can disable it if we get an error or a signal within it. |
bd5635a1 RP |
72 | -1 when not doing one. */ |
73 | ||
74 | int current_display_number; | |
75 | ||
76 | /* Flag to low-level print routines that this value is being printed | |
77 | in an epoch window. We'd like to pass this as a parameter, but | |
78 | every routine would need to take it. Perhaps we can encapsulate | |
79 | this in the I/O stream once we have GNU stdio. */ | |
80 | ||
81 | int inspect_it = 0; | |
82 | ||
93fe4e33 JG |
83 | struct display |
84 | { | |
85 | /* Chain link to next auto-display item. */ | |
86 | struct display *next; | |
87 | /* Expression to be evaluated and displayed. */ | |
88 | struct expression *exp; | |
89 | /* Item number of this auto-display item. */ | |
90 | int number; | |
91 | /* Display format specified. */ | |
92 | struct format_data format; | |
93 | /* Innermost block required by this expression when evaluated */ | |
94 | struct block *block; | |
95 | /* Status of this display (enabled or disabled) */ | |
8f869b45 | 96 | enum enable status; |
93fe4e33 JG |
97 | }; |
98 | ||
99 | /* Chain of expressions whose values should be displayed | |
100 | automatically each time the program stops. */ | |
101 | ||
102 | static struct display *display_chain; | |
103 | ||
104 | static int display_number; | |
105 | ||
106 | /* Prototypes for local functions */ | |
107 | ||
108 | static void | |
109 | delete_display PARAMS ((int)); | |
110 | ||
111 | static void | |
4d38b5a8 | 112 | enable_display PARAMS ((char *, int)); |
93fe4e33 JG |
113 | |
114 | static void | |
115 | disable_display_command PARAMS ((char *, int)); | |
116 | ||
117 | static void | |
118 | disassemble_command PARAMS ((char *, int)); | |
119 | ||
120 | static int | |
121 | containing_function_bounds PARAMS ((CORE_ADDR, CORE_ADDR *, CORE_ADDR *)); | |
122 | ||
123 | static void | |
124 | printf_command PARAMS ((char *, int)); | |
125 | ||
126 | static void | |
f77ad505 FF |
127 | print_frame_nameless_args PARAMS ((struct frame_info *, long, int, int, |
128 | FILE *)); | |
93fe4e33 JG |
129 | |
130 | static void | |
4d38b5a8 | 131 | display_info PARAMS ((char *, int)); |
93fe4e33 JG |
132 | |
133 | static void | |
134 | do_one_display PARAMS ((struct display *)); | |
135 | ||
136 | static void | |
4d38b5a8 | 137 | undisplay_command PARAMS ((char *, int)); |
93fe4e33 JG |
138 | |
139 | static void | |
140 | free_display PARAMS ((struct display *)); | |
141 | ||
142 | static void | |
143 | display_command PARAMS ((char *, int)); | |
144 | ||
93fe4e33 JG |
145 | static void |
146 | x_command PARAMS ((char *, int)); | |
147 | ||
148 | static void | |
149 | address_info PARAMS ((char *, int)); | |
150 | ||
151 | static void | |
152 | set_command PARAMS ((char *, int)); | |
153 | ||
154 | static void | |
155 | output_command PARAMS ((char *, int)); | |
bd5635a1 | 156 | |
93fe4e33 JG |
157 | static void |
158 | call_command PARAMS ((char *, int)); | |
159 | ||
160 | static void | |
161 | inspect_command PARAMS ((char *, int)); | |
162 | ||
163 | static void | |
164 | print_command PARAMS ((char *, int)); | |
165 | ||
166 | static void | |
167 | print_command_1 PARAMS ((char *, int, int)); | |
168 | ||
169 | static void | |
170 | validate_format PARAMS ((struct format_data, char *)); | |
171 | ||
172 | static void | |
173 | do_examine PARAMS ((struct format_data, CORE_ADDR)); | |
174 | ||
175 | static void | |
176 | print_formatted PARAMS ((value, int, int)); | |
177 | ||
178 | static struct format_data | |
179 | decode_format PARAMS ((char **, int, int)); | |
bd5635a1 RP |
180 | |
181 | \f | |
182 | /* Decode a format specification. *STRING_PTR should point to it. | |
183 | OFORMAT and OSIZE are used as defaults for the format and size | |
184 | if none are given in the format specification. | |
185 | If OSIZE is zero, then the size field of the returned value | |
186 | should be set only if a size is explicitly specified by the | |
187 | user. | |
188 | The structure returned describes all the data | |
189 | found in the specification. In addition, *STRING_PTR is advanced | |
190 | past the specification and past all whitespace following it. */ | |
191 | ||
93fe4e33 | 192 | static struct format_data |
bd5635a1 RP |
193 | decode_format (string_ptr, oformat, osize) |
194 | char **string_ptr; | |
93fe4e33 JG |
195 | int oformat; |
196 | int osize; | |
bd5635a1 RP |
197 | { |
198 | struct format_data val; | |
199 | register char *p = *string_ptr; | |
200 | ||
201 | val.format = '?'; | |
202 | val.size = '?'; | |
203 | val.count = 1; | |
204 | ||
205 | if (*p >= '0' && *p <= '9') | |
206 | val.count = atoi (p); | |
207 | while (*p >= '0' && *p <= '9') p++; | |
208 | ||
209 | /* Now process size or format letters that follow. */ | |
210 | ||
211 | while (1) | |
212 | { | |
213 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
214 | val.size = *p++; | |
215 | #ifdef LONG_LONG | |
216 | else if (*p == 'l') | |
217 | { | |
218 | val.size = 'g'; | |
219 | p++; | |
220 | } | |
221 | #endif | |
222 | else if (*p >= 'a' && *p <= 'z') | |
223 | val.format = *p++; | |
224 | else | |
225 | break; | |
226 | } | |
227 | ||
228 | #ifndef LONG_LONG | |
229 | /* Make sure 'g' size is not used on integer types. | |
230 | Well, actually, we can handle hex. */ | |
231 | if (val.size == 'g' && val.format != 'f' && val.format != 'x') | |
232 | val.size = 'w'; | |
233 | #endif | |
234 | ||
235 | while (*p == ' ' || *p == '\t') p++; | |
236 | *string_ptr = p; | |
237 | ||
238 | /* Set defaults for format and size if not specified. */ | |
239 | if (val.format == '?') | |
240 | { | |
241 | if (val.size == '?') | |
242 | { | |
243 | /* Neither has been specified. */ | |
244 | val.format = oformat; | |
245 | val.size = osize; | |
246 | } | |
247 | else | |
248 | /* If a size is specified, any format makes a reasonable | |
249 | default except 'i'. */ | |
250 | val.format = oformat == 'i' ? 'x' : oformat; | |
251 | } | |
252 | else if (val.size == '?') | |
253 | switch (val.format) | |
254 | { | |
255 | case 'a': | |
256 | case 's': | |
257 | /* Addresses must be words. */ | |
258 | val.size = osize ? 'w' : osize; | |
259 | break; | |
260 | case 'f': | |
261 | /* Floating point has to be word or giantword. */ | |
262 | if (osize == 'w' || osize == 'g') | |
263 | val.size = osize; | |
264 | else | |
265 | /* Default it to giantword if the last used size is not | |
266 | appropriate. */ | |
267 | val.size = osize ? 'g' : osize; | |
268 | break; | |
269 | case 'c': | |
270 | /* Characters default to one byte. */ | |
271 | val.size = osize ? 'b' : osize; | |
272 | break; | |
273 | default: | |
274 | /* The default is the size most recently specified. */ | |
275 | val.size = osize; | |
276 | } | |
277 | ||
278 | return val; | |
279 | } | |
280 | \f | |
281 | /* Print value VAL on stdout according to FORMAT, a letter or 0. | |
282 | Do not end with a newline. | |
283 | 0 means print VAL according to its own type. | |
284 | SIZE is the letter for the size of datum being printed. | |
285 | This is used to pad hex numbers so they line up. */ | |
286 | ||
287 | static void | |
288 | print_formatted (val, format, size) | |
289 | register value val; | |
93fe4e33 JG |
290 | register int format; |
291 | int size; | |
bd5635a1 RP |
292 | { |
293 | int len = TYPE_LENGTH (VALUE_TYPE (val)); | |
294 | ||
295 | if (VALUE_LVAL (val) == lval_memory) | |
296 | next_address = VALUE_ADDRESS (val) + len; | |
297 | ||
298 | switch (format) | |
299 | { | |
300 | case 's': | |
301 | next_address = VALUE_ADDRESS (val) | |
302 | + value_print (value_addr (val), stdout, format, Val_pretty_default); | |
303 | break; | |
304 | ||
305 | case 'i': | |
c4668207 | 306 | wrap_here (""); /* Force output out, print_insn not using _filtered */ |
bd5635a1 RP |
307 | next_address = VALUE_ADDRESS (val) |
308 | + print_insn (VALUE_ADDRESS (val), stdout); | |
309 | break; | |
310 | ||
311 | default: | |
312 | if (format == 0 | |
313 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_ARRAY | |
7dc15bb7 | 314 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_STRING |
bd5635a1 RP |
315 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_STRUCT |
316 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_UNION | |
317 | || VALUE_REPEATED (val)) | |
318 | value_print (val, stdout, format, Val_pretty_default); | |
319 | else | |
320 | print_scalar_formatted (VALUE_CONTENTS (val), VALUE_TYPE (val), | |
321 | format, size, stdout); | |
322 | } | |
323 | } | |
324 | ||
325 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
326 | according to letters FORMAT and SIZE on STREAM. | |
327 | FORMAT may not be zero. Formats s and i are not supported at this level. | |
328 | ||
329 | This is how the elements of an array or structure are printed | |
330 | with a format. */ | |
331 | ||
332 | void | |
333 | print_scalar_formatted (valaddr, type, format, size, stream) | |
334 | char *valaddr; | |
335 | struct type *type; | |
93fe4e33 | 336 | int format; |
bd5635a1 RP |
337 | int size; |
338 | FILE *stream; | |
339 | { | |
340 | LONGEST val_long; | |
341 | int len = TYPE_LENGTH (type); | |
342 | ||
343 | if (size == 'g' && sizeof (LONGEST) < 8 | |
344 | && format == 'x') | |
345 | { | |
346 | /* ok, we're going to have to get fancy here. Assumption: a | |
347 | long is four bytes. FIXME. */ | |
c4668207 | 348 | unsigned long v1, v2; |
bd5635a1 RP |
349 | |
350 | v1 = unpack_long (builtin_type_long, valaddr); | |
351 | v2 = unpack_long (builtin_type_long, valaddr + 4); | |
352 | ||
353 | #if TARGET_BYTE_ORDER == LITTLE_ENDIAN | |
354 | /* Swap the two for printing */ | |
c4668207 JG |
355 | { |
356 | unsigned long tmp; | |
357 | ||
358 | tmp = v1; | |
359 | v1 = v2; | |
360 | v2 = tmp; | |
361 | } | |
bd5635a1 RP |
362 | #endif |
363 | ||
364 | switch (format) | |
365 | { | |
366 | case 'x': | |
c4668207 | 367 | fprintf_filtered (stream, local_hex_format_custom("08x%08"), v1, v2); |
bd5635a1 RP |
368 | break; |
369 | default: | |
370 | error ("Output size \"g\" unimplemented for format \"%c\".", | |
371 | format); | |
372 | } | |
373 | return; | |
374 | } | |
375 | ||
376 | val_long = unpack_long (type, valaddr); | |
377 | ||
378 | /* If value is unsigned, truncate it in case negative. */ | |
379 | if (format != 'd') | |
380 | { | |
381 | if (len == sizeof (char)) | |
382 | val_long &= (1 << 8 * sizeof(char)) - 1; | |
383 | else if (len == sizeof (short)) | |
384 | val_long &= (1 << 8 * sizeof(short)) - 1; | |
385 | else if (len == sizeof (long)) | |
386 | val_long &= (unsigned long) - 1; | |
387 | } | |
388 | ||
389 | switch (format) | |
390 | { | |
391 | case 'x': | |
392 | if (!size) | |
393 | { | |
394 | /* no size specified, like in print. Print varying # of digits. */ | |
395 | #if defined (LONG_LONG) | |
c4668207 | 396 | fprintf_filtered (stream, local_hex_format_custom("ll"), val_long); |
bd5635a1 | 397 | #else /* not LONG_LONG. */ |
c4668207 | 398 | fprintf_filtered (stream, local_hex_format_custom("l"), val_long); |
bd5635a1 RP |
399 | #endif /* not LONG_LONG. */ |
400 | } | |
401 | else | |
402 | #if defined (LONG_LONG) | |
403 | switch (size) | |
404 | { | |
405 | case 'b': | |
c4668207 | 406 | fprintf_filtered (stream, local_hex_format_custom("02ll"), val_long); |
bd5635a1 RP |
407 | break; |
408 | case 'h': | |
c4668207 | 409 | fprintf_filtered (stream, local_hex_format_custom("04ll"), val_long); |
bd5635a1 RP |
410 | break; |
411 | case 'w': | |
c4668207 | 412 | fprintf_filtered (stream, local_hex_format_custom("08ll"), val_long); |
bd5635a1 RP |
413 | break; |
414 | case 'g': | |
c4668207 | 415 | fprintf_filtered (stream, local_hex_format_custom("016ll"), val_long); |
bd5635a1 RP |
416 | break; |
417 | default: | |
418 | error ("Undefined output size \"%c\".", size); | |
419 | } | |
420 | #else /* not LONG_LONG. */ | |
421 | switch (size) | |
422 | { | |
423 | case 'b': | |
c4668207 | 424 | fprintf_filtered (stream, local_hex_format_custom("02"), val_long); |
bd5635a1 RP |
425 | break; |
426 | case 'h': | |
c4668207 | 427 | fprintf_filtered (stream, local_hex_format_custom("04"), val_long); |
bd5635a1 RP |
428 | break; |
429 | case 'w': | |
c4668207 | 430 | fprintf_filtered (stream, local_hex_format_custom("08"), val_long); |
bd5635a1 RP |
431 | break; |
432 | case 'g': | |
c4668207 | 433 | fprintf_filtered (stream, local_hex_format_custom("016"), val_long); |
bd5635a1 RP |
434 | break; |
435 | default: | |
436 | error ("Undefined output size \"%c\".", size); | |
437 | } | |
438 | #endif /* not LONG_LONG */ | |
439 | break; | |
440 | ||
441 | case 'd': | |
442 | #ifdef LONG_LONG | |
a8a69e63 | 443 | fprintf_filtered (stream, local_decimal_format_custom("ll"), val_long); |
bd5635a1 | 444 | #else |
a8a69e63 | 445 | fprintf_filtered (stream, local_decimal_format(), val_long); |
bd5635a1 RP |
446 | #endif |
447 | break; | |
448 | ||
449 | case 'u': | |
450 | #ifdef LONG_LONG | |
451 | fprintf_filtered (stream, "%llu", val_long); | |
452 | #else | |
453 | fprintf_filtered (stream, "%u", val_long); | |
454 | #endif | |
455 | break; | |
456 | ||
457 | case 'o': | |
458 | if (val_long) | |
459 | #ifdef LONG_LONG | |
c4668207 | 460 | fprintf_filtered (stream, local_octal_format_custom("ll"), val_long); |
bd5635a1 | 461 | #else |
c4668207 | 462 | fprintf_filtered (stream, local_octal_format(), val_long); |
bd5635a1 RP |
463 | #endif |
464 | else | |
465 | fprintf_filtered (stream, "0"); | |
466 | break; | |
467 | ||
468 | case 'a': | |
e1ce8aa5 | 469 | print_address (unpack_pointer (type, valaddr), stream); |
bd5635a1 RP |
470 | break; |
471 | ||
472 | case 'c': | |
c4668207 | 473 | value_print (value_from_longest (builtin_type_char, val_long), stream, 0, |
bd5635a1 RP |
474 | Val_pretty_default); |
475 | break; | |
476 | ||
477 | case 'f': | |
478 | if (len == sizeof (float)) | |
479 | type = builtin_type_float; | |
480 | else if (len == sizeof (double)) | |
481 | type = builtin_type_double; | |
482 | print_floating (valaddr, type, stream); | |
483 | break; | |
484 | ||
485 | case 0: | |
486 | abort (); | |
487 | ||
19b7c2a4 JK |
488 | case 't': |
489 | /* Binary; 't' stands for "two". */ | |
490 | { | |
491 | char bits[8*(sizeof val_long) + 1]; | |
492 | char *cp = bits; | |
493 | int width; | |
494 | ||
495 | if (!size) | |
496 | width = 8*(sizeof val_long); | |
497 | else | |
498 | switch (size) | |
499 | { | |
500 | case 'b': | |
501 | width = 8; | |
502 | break; | |
503 | case 'h': | |
504 | width = 16; | |
505 | break; | |
506 | case 'w': | |
507 | width = 32; | |
508 | break; | |
509 | case 'g': | |
510 | width = 64; | |
511 | break; | |
512 | default: | |
513 | error ("Undefined output size \"%c\".", size); | |
514 | } | |
515 | ||
516 | bits[width] = '\0'; | |
517 | while (width-- > 0) | |
518 | { | |
519 | bits[width] = (val_long & 1) ? '1' : '0'; | |
520 | val_long >>= 1; | |
521 | } | |
522 | if (!size) | |
523 | { | |
524 | while (*cp && *cp == '0') | |
525 | cp++; | |
526 | if (*cp == '\0') | |
527 | cp--; | |
528 | } | |
a8a69e63 | 529 | fprintf_filtered (stream, local_binary_format_prefix()); |
19b7c2a4 | 530 | fprintf_filtered (stream, cp); |
a8a69e63 | 531 | fprintf_filtered (stream, local_binary_format_suffix()); |
19b7c2a4 JK |
532 | } |
533 | break; | |
534 | ||
bd5635a1 RP |
535 | default: |
536 | error ("Undefined output format \"%c\".", format); | |
537 | } | |
538 | } | |
539 | ||
540 | /* Specify default address for `x' command. | |
541 | `info lines' uses this. */ | |
542 | ||
543 | void | |
544 | set_next_address (addr) | |
545 | CORE_ADDR addr; | |
546 | { | |
547 | next_address = addr; | |
548 | ||
549 | /* Make address available to the user as $_. */ | |
550 | set_internalvar (lookup_internalvar ("_"), | |
c4668207 JG |
551 | value_from_longest (lookup_pointer_type (builtin_type_void), |
552 | (LONGEST) addr)); | |
bd5635a1 RP |
553 | } |
554 | ||
36b9d39c JG |
555 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, |
556 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
bd5635a1 RP |
557 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, |
558 | or to interpret it as a possible C++ name and convert it back to source | |
2e4964ad FF |
559 | form. However note that DO_DEMANGLE can be overridden by the specific |
560 | settings of the demangle and asm_demangle variables. */ | |
bd5635a1 RP |
561 | |
562 | void | |
36b9d39c | 563 | print_address_symbolic (addr, stream, do_demangle, leadin) |
bd5635a1 RP |
564 | CORE_ADDR addr; |
565 | FILE *stream; | |
566 | int do_demangle; | |
36b9d39c | 567 | char *leadin; |
bd5635a1 | 568 | { |
f77ad505 | 569 | CORE_ADDR name_location; |
93fe4e33 | 570 | register struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (addr); |
bd5635a1 RP |
571 | |
572 | /* If nothing comes out, don't print anything symbolic. */ | |
573 | ||
93fe4e33 | 574 | if (msymbol == NULL) |
bd5635a1 RP |
575 | return; |
576 | ||
f77ad505 FF |
577 | /* If the nearest symbol is too far away, ditto. */ |
578 | ||
579 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); | |
580 | ||
581 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
582 | CORE_ADDR. But when we detect unsigned wraparound in the | |
583 | CORE_ADDR math, we ignore this test and print the offset, | |
584 | because addr+max_symbolic_offset has wrapped through the end | |
585 | of the address space back to the beginning, giving bogus comparison. */ | |
586 | if (addr > name_location + max_symbolic_offset | |
587 | && name_location + max_symbolic_offset > name_location) | |
588 | return; | |
589 | ||
36b9d39c JG |
590 | fputs_filtered (leadin, stream); |
591 | fputs_filtered ("<", stream); | |
bd5635a1 | 592 | if (do_demangle) |
2e4964ad | 593 | fputs_filtered (SYMBOL_SOURCE_NAME (msymbol), stream); |
bd5635a1 | 594 | else |
2e4964ad | 595 | fputs_filtered (SYMBOL_LINKAGE_NAME (msymbol), stream); |
f77ad505 FF |
596 | if (addr != name_location) |
597 | fprintf_filtered (stream, "+%d>", (int)(addr - name_location)); | |
bd5635a1 RP |
598 | else |
599 | fputs_filtered (">", stream); | |
600 | } | |
601 | ||
602 | /* Print address ADDR symbolically on STREAM. | |
603 | First print it as a number. Then perhaps print | |
604 | <SYMBOL + OFFSET> after the number. */ | |
605 | ||
606 | void | |
607 | print_address (addr, stream) | |
608 | CORE_ADDR addr; | |
609 | FILE *stream; | |
610 | { | |
8f869b45 SC |
611 | #ifdef ADDR_BITS_REMOVE |
612 | fprintf_filtered (stream, local_hex_format(), ADDR_BITS_REMOVE(addr)); | |
613 | #else | |
c4668207 | 614 | fprintf_filtered (stream, local_hex_format(), addr); |
8f869b45 | 615 | #endif |
36b9d39c | 616 | print_address_symbolic (addr, stream, asm_demangle, " "); |
bd5635a1 RP |
617 | } |
618 | ||
619 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
36b9d39c JG |
620 | controls whether to print the symbolic name "raw" or demangled. |
621 | Global setting "addressprint" controls whether to print hex address | |
622 | or not. */ | |
bd5635a1 RP |
623 | |
624 | void | |
625 | print_address_demangle (addr, stream, do_demangle) | |
626 | CORE_ADDR addr; | |
627 | FILE *stream; | |
628 | int do_demangle; | |
629 | { | |
36b9d39c JG |
630 | if (addr == 0) { |
631 | fprintf_filtered (stream, "0"); | |
632 | } else if (addressprint) { | |
c4668207 | 633 | fprintf_filtered (stream, local_hex_format(), addr); |
36b9d39c JG |
634 | print_address_symbolic (addr, stream, do_demangle, " "); |
635 | } else { | |
636 | print_address_symbolic (addr, stream, do_demangle, ""); | |
637 | } | |
bd5635a1 | 638 | } |
bd5635a1 RP |
639 | \f |
640 | ||
641 | /* Examine data at address ADDR in format FMT. | |
642 | Fetch it from memory and print on stdout. */ | |
643 | ||
644 | static void | |
645 | do_examine (fmt, addr) | |
646 | struct format_data fmt; | |
647 | CORE_ADDR addr; | |
648 | { | |
649 | register char format = 0; | |
650 | register char size; | |
651 | register int count = 1; | |
652 | struct type *val_type; | |
653 | register int i; | |
654 | register int maxelts; | |
655 | ||
656 | format = fmt.format; | |
657 | size = fmt.size; | |
658 | count = fmt.count; | |
659 | next_address = addr; | |
660 | ||
661 | /* String or instruction format implies fetch single bytes | |
662 | regardless of the specified size. */ | |
663 | if (format == 's' || format == 'i') | |
664 | size = 'b'; | |
665 | ||
666 | if (size == 'b') | |
667 | val_type = builtin_type_char; | |
668 | else if (size == 'h') | |
669 | val_type = builtin_type_short; | |
670 | else if (size == 'w') | |
671 | val_type = builtin_type_long; | |
672 | else if (size == 'g') | |
673 | #ifndef LONG_LONG | |
674 | val_type = builtin_type_double; | |
675 | #else | |
676 | val_type = builtin_type_long_long; | |
677 | #endif | |
678 | ||
679 | maxelts = 8; | |
680 | if (size == 'w') | |
681 | maxelts = 4; | |
682 | if (size == 'g') | |
683 | maxelts = 2; | |
684 | if (format == 's' || format == 'i') | |
685 | maxelts = 1; | |
686 | ||
687 | /* Print as many objects as specified in COUNT, at most maxelts per line, | |
688 | with the address of the next one at the start of each line. */ | |
689 | ||
690 | while (count > 0) | |
691 | { | |
692 | print_address (next_address, stdout); | |
693 | printf_filtered (":"); | |
694 | for (i = maxelts; | |
695 | i > 0 && count > 0; | |
696 | i--, count--) | |
697 | { | |
698 | printf_filtered ("\t"); | |
699 | /* Note that print_formatted sets next_address for the next | |
700 | object. */ | |
701 | last_examine_address = next_address; | |
702 | last_examine_value = value_at (val_type, next_address); | |
703 | print_formatted (last_examine_value, format, size); | |
704 | } | |
705 | printf_filtered ("\n"); | |
706 | fflush (stdout); | |
707 | } | |
708 | } | |
709 | \f | |
710 | static void | |
711 | validate_format (fmt, cmdname) | |
712 | struct format_data fmt; | |
713 | char *cmdname; | |
714 | { | |
715 | if (fmt.size != 0) | |
716 | error ("Size letters are meaningless in \"%s\" command.", cmdname); | |
717 | if (fmt.count != 1) | |
718 | error ("Item count other than 1 is meaningless in \"%s\" command.", | |
719 | cmdname); | |
720 | if (fmt.format == 'i' || fmt.format == 's') | |
721 | error ("Format letter \"%c\" is meaningless in \"%s\" command.", | |
722 | fmt.format, cmdname); | |
723 | } | |
724 | ||
7dc15bb7 JG |
725 | /* Evaluate string EXP as an expression in the current language and |
726 | print the resulting value. EXP may contain a format specifier as the | |
727 | first argument ("/x myvar" for example, to print myvar in hex). | |
728 | */ | |
729 | ||
bd5635a1 RP |
730 | static void |
731 | print_command_1 (exp, inspect, voidprint) | |
732 | char *exp; | |
733 | int inspect; | |
734 | int voidprint; | |
735 | { | |
736 | struct expression *expr; | |
737 | register struct cleanup *old_chain = 0; | |
738 | register char format = 0; | |
739 | register value val; | |
740 | struct format_data fmt; | |
741 | int cleanup = 0; | |
742 | ||
743 | /* Pass inspect flag to the rest of the print routines in a global (sigh). */ | |
744 | inspect_it = inspect; | |
745 | ||
746 | if (exp && *exp == '/') | |
747 | { | |
748 | exp++; | |
749 | fmt = decode_format (&exp, last_format, 0); | |
750 | validate_format (fmt, "print"); | |
751 | last_format = format = fmt.format; | |
752 | } | |
753 | else | |
754 | { | |
755 | fmt.count = 1; | |
756 | fmt.format = 0; | |
757 | fmt.size = 0; | |
758 | } | |
759 | ||
760 | if (exp && *exp) | |
761 | { | |
3577f9b4 JK |
762 | extern int objectprint; |
763 | struct type *type; | |
c4668207 | 764 | expr = parse_expression (exp); |
bd5635a1 RP |
765 | old_chain = make_cleanup (free_current_contents, &expr); |
766 | cleanup = 1; | |
767 | val = evaluate_expression (expr); | |
3577f9b4 JK |
768 | |
769 | /* C++: figure out what type we actually want to print it as. */ | |
770 | type = VALUE_TYPE (val); | |
771 | ||
772 | if (objectprint | |
93fe4e33 | 773 | && ( TYPE_CODE (type) == TYPE_CODE_PTR |
3577f9b4 | 774 | || TYPE_CODE (type) == TYPE_CODE_REF) |
93fe4e33 JG |
775 | && ( TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT |
776 | || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_UNION)) | |
3577f9b4 JK |
777 | { |
778 | value v; | |
779 | ||
780 | v = value_from_vtable_info (val, TYPE_TARGET_TYPE (type)); | |
781 | if (v != 0) | |
782 | { | |
783 | val = v; | |
784 | type = VALUE_TYPE (val); | |
785 | } | |
786 | } | |
bd5635a1 RP |
787 | } |
788 | else | |
789 | val = access_value_history (0); | |
790 | ||
791 | if (voidprint || (val && VALUE_TYPE (val) && | |
792 | TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_VOID)) | |
793 | { | |
794 | int histindex = record_latest_value (val); | |
795 | ||
796 | if (inspect) | |
797 | printf ("\031(gdb-makebuffer \"%s\" %d '(\"", exp, histindex); | |
798 | else | |
799 | if (histindex >= 0) printf_filtered ("$%d = ", histindex); | |
800 | ||
801 | print_formatted (val, format, fmt.size); | |
802 | printf_filtered ("\n"); | |
803 | if (inspect) | |
804 | printf("\") )\030"); | |
805 | } | |
806 | ||
807 | if (cleanup) | |
808 | do_cleanups (old_chain); | |
809 | inspect_it = 0; /* Reset print routines to normal */ | |
810 | } | |
811 | ||
e1ce8aa5 | 812 | /* ARGSUSED */ |
bd5635a1 RP |
813 | static void |
814 | print_command (exp, from_tty) | |
815 | char *exp; | |
816 | int from_tty; | |
817 | { | |
818 | print_command_1 (exp, 0, 1); | |
819 | } | |
820 | ||
821 | /* Same as print, except in epoch, it gets its own window */ | |
e1ce8aa5 | 822 | /* ARGSUSED */ |
bd5635a1 RP |
823 | static void |
824 | inspect_command (exp, from_tty) | |
825 | char *exp; | |
826 | int from_tty; | |
827 | { | |
828 | extern int epoch_interface; | |
829 | ||
830 | print_command_1 (exp, epoch_interface, 1); | |
831 | } | |
832 | ||
833 | /* Same as print, except it doesn't print void results. */ | |
e1ce8aa5 | 834 | /* ARGSUSED */ |
bd5635a1 RP |
835 | static void |
836 | call_command (exp, from_tty) | |
837 | char *exp; | |
838 | int from_tty; | |
839 | { | |
840 | print_command_1 (exp, 0, 0); | |
841 | } | |
842 | ||
e1ce8aa5 | 843 | /* ARGSUSED */ |
bd5635a1 RP |
844 | static void |
845 | output_command (exp, from_tty) | |
846 | char *exp; | |
847 | int from_tty; | |
848 | { | |
849 | struct expression *expr; | |
850 | register struct cleanup *old_chain; | |
851 | register char format = 0; | |
852 | register value val; | |
853 | struct format_data fmt; | |
854 | ||
855 | if (exp && *exp == '/') | |
856 | { | |
857 | exp++; | |
858 | fmt = decode_format (&exp, 0, 0); | |
4d38b5a8 | 859 | validate_format (fmt, "output"); |
bd5635a1 RP |
860 | format = fmt.format; |
861 | } | |
862 | ||
c4668207 | 863 | expr = parse_expression (exp); |
bd5635a1 RP |
864 | old_chain = make_cleanup (free_current_contents, &expr); |
865 | ||
866 | val = evaluate_expression (expr); | |
867 | ||
868 | print_formatted (val, format, fmt.size); | |
869 | ||
870 | do_cleanups (old_chain); | |
871 | } | |
872 | ||
e1ce8aa5 | 873 | /* ARGSUSED */ |
bd5635a1 RP |
874 | static void |
875 | set_command (exp, from_tty) | |
876 | char *exp; | |
877 | int from_tty; | |
878 | { | |
c4668207 | 879 | struct expression *expr = parse_expression (exp); |
bd5635a1 RP |
880 | register struct cleanup *old_chain |
881 | = make_cleanup (free_current_contents, &expr); | |
882 | evaluate_expression (expr); | |
883 | do_cleanups (old_chain); | |
884 | } | |
885 | ||
e1ce8aa5 | 886 | /* ARGSUSED */ |
bd5635a1 RP |
887 | static void |
888 | address_info (exp, from_tty) | |
889 | char *exp; | |
890 | int from_tty; | |
891 | { | |
892 | register struct symbol *sym; | |
93fe4e33 | 893 | register struct minimal_symbol *msymbol; |
e1ce8aa5 | 894 | register long val; |
4d38b5a8 | 895 | register long basereg; |
bd5635a1 RP |
896 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero |
897 | if exp is a field of `this'. */ | |
898 | ||
899 | if (exp == 0) | |
900 | error ("Argument required."); | |
901 | ||
902 | sym = lookup_symbol (exp, get_selected_block (), VAR_NAMESPACE, | |
903 | &is_a_field_of_this, (struct symtab **)NULL); | |
2e4964ad | 904 | if (sym == NULL) |
bd5635a1 | 905 | { |
bd5635a1 RP |
906 | if (is_a_field_of_this) |
907 | { | |
908 | printf ("Symbol \"%s\" is a field of the local class variable `this'\n", exp); | |
909 | return; | |
910 | } | |
911 | ||
93fe4e33 | 912 | msymbol = lookup_minimal_symbol (exp, (struct objfile *) NULL); |
bd5635a1 | 913 | |
93fe4e33 | 914 | if (msymbol != NULL) |
c4668207 | 915 | printf ("Symbol \"%s\" is at %s in a file compiled without debugging.\n", |
2e4964ad | 916 | exp, local_hex_string(SYMBOL_VALUE_ADDRESS (msymbol))); |
bd5635a1 RP |
917 | else |
918 | error ("No symbol \"%s\" in current context.", exp); | |
919 | return; | |
920 | } | |
921 | ||
922 | printf ("Symbol \"%s\" is ", SYMBOL_NAME (sym)); | |
923 | val = SYMBOL_VALUE (sym); | |
4d38b5a8 | 924 | basereg = SYMBOL_BASEREG (sym); |
bd5635a1 RP |
925 | |
926 | switch (SYMBOL_CLASS (sym)) | |
927 | { | |
928 | case LOC_CONST: | |
929 | case LOC_CONST_BYTES: | |
930 | printf ("constant"); | |
931 | break; | |
932 | ||
933 | case LOC_LABEL: | |
c4668207 | 934 | printf ("a label at address %s", local_hex_string(SYMBOL_VALUE_ADDRESS (sym))); |
bd5635a1 RP |
935 | break; |
936 | ||
937 | case LOC_REGISTER: | |
938 | printf ("a variable in register %s", reg_names[val]); | |
939 | break; | |
940 | ||
941 | case LOC_STATIC: | |
c4668207 | 942 | printf ("static storage at address %s", local_hex_string(SYMBOL_VALUE_ADDRESS (sym))); |
bd5635a1 RP |
943 | break; |
944 | ||
945 | case LOC_REGPARM: | |
946 | printf ("an argument in register %s", reg_names[val]); | |
947 | break; | |
948 | ||
949 | case LOC_ARG: | |
4d38b5a8 JG |
950 | if (SYMBOL_BASEREG_VALID (sym)) |
951 | { | |
952 | printf ("an argument at offset %ld from register %s", | |
953 | val, reg_names[basereg]); | |
954 | } | |
955 | else | |
956 | { | |
957 | printf ("an argument at offset %ld", val); | |
958 | } | |
bd5635a1 RP |
959 | break; |
960 | ||
961 | case LOC_LOCAL_ARG: | |
4d38b5a8 JG |
962 | if (SYMBOL_BASEREG_VALID (sym)) |
963 | { | |
964 | printf ("an argument at offset %ld from register %s", | |
965 | val, reg_names[basereg]); | |
966 | } | |
967 | else | |
968 | { | |
969 | printf ("an argument at frame offset %ld", val); | |
970 | } | |
bd5635a1 RP |
971 | break; |
972 | ||
973 | case LOC_LOCAL: | |
4d38b5a8 JG |
974 | if (SYMBOL_BASEREG_VALID (sym)) |
975 | { | |
976 | printf ("a local variable at offset %ld from register %s", | |
977 | val, reg_names[basereg]); | |
978 | } | |
979 | else | |
980 | { | |
981 | printf ("a local variable at frame offset %ld", val); | |
982 | } | |
bd5635a1 RP |
983 | break; |
984 | ||
985 | case LOC_REF_ARG: | |
e1ce8aa5 | 986 | printf ("a reference argument at offset %ld", val); |
bd5635a1 RP |
987 | break; |
988 | ||
989 | case LOC_TYPEDEF: | |
990 | printf ("a typedef"); | |
991 | break; | |
992 | ||
993 | case LOC_BLOCK: | |
c4668207 JG |
994 | printf ("a function at address %s", |
995 | local_hex_string(BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); | |
bd5635a1 RP |
996 | break; |
997 | ||
998 | default: | |
999 | printf ("of unknown (botched) type"); | |
1000 | break; | |
1001 | } | |
1002 | printf (".\n"); | |
1003 | } | |
1004 | \f | |
1005 | static void | |
1006 | x_command (exp, from_tty) | |
1007 | char *exp; | |
1008 | int from_tty; | |
1009 | { | |
1010 | struct expression *expr; | |
1011 | struct format_data fmt; | |
1012 | struct cleanup *old_chain; | |
1013 | struct value *val; | |
1014 | ||
1015 | fmt.format = last_format; | |
1016 | fmt.size = last_size; | |
1017 | fmt.count = 1; | |
1018 | ||
1019 | if (exp && *exp == '/') | |
1020 | { | |
1021 | exp++; | |
1022 | fmt = decode_format (&exp, last_format, last_size); | |
bd5635a1 RP |
1023 | } |
1024 | ||
1025 | /* If we have an expression, evaluate it and use it as the address. */ | |
1026 | ||
1027 | if (exp != 0 && *exp != 0) | |
1028 | { | |
c4668207 | 1029 | expr = parse_expression (exp); |
bd5635a1 RP |
1030 | /* Cause expression not to be there any more |
1031 | if this command is repeated with Newline. | |
1032 | But don't clobber a user-defined command's definition. */ | |
1033 | if (from_tty) | |
1034 | *exp = 0; | |
1035 | old_chain = make_cleanup (free_current_contents, &expr); | |
1036 | val = evaluate_expression (expr); | |
3577f9b4 JK |
1037 | if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_REF) |
1038 | val = value_ind (val); | |
bd5635a1 RP |
1039 | /* In rvalue contexts, such as this, functions are coerced into |
1040 | pointers to functions. This makes "x/i main" work. */ | |
1041 | if (/* last_format == 'i' | |
1042 | && */ TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FUNC | |
1043 | && VALUE_LVAL (val) == lval_memory) | |
1044 | next_address = VALUE_ADDRESS (val); | |
1045 | else | |
e1ce8aa5 | 1046 | next_address = value_as_pointer (val); |
bd5635a1 RP |
1047 | do_cleanups (old_chain); |
1048 | } | |
1049 | ||
1050 | do_examine (fmt, next_address); | |
1051 | ||
4d38b5a8 JG |
1052 | /* If the examine succeeds, we remember its size and format for next time. */ |
1053 | last_size = fmt.size; | |
1054 | last_format = fmt.format; | |
1055 | ||
bd5635a1 RP |
1056 | /* Set a couple of internal variables if appropriate. */ |
1057 | if (last_examine_value) | |
1058 | { | |
c4668207 JG |
1059 | /* Make last address examined available to the user as $_. Use |
1060 | the correct pointer type. */ | |
bd5635a1 | 1061 | set_internalvar (lookup_internalvar ("_"), |
c4668207 JG |
1062 | value_from_longest ( |
1063 | lookup_pointer_type (VALUE_TYPE (last_examine_value)), | |
1064 | (LONGEST) last_examine_address)); | |
bd5635a1 RP |
1065 | |
1066 | /* Make contents of last address examined available to the user as $__.*/ | |
1067 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1068 | } | |
1069 | } | |
bd5635a1 | 1070 | |
bd5635a1 | 1071 | \f |
bd5635a1 RP |
1072 | /* Add an expression to the auto-display chain. |
1073 | Specify the expression. */ | |
1074 | ||
1075 | static void | |
1076 | display_command (exp, from_tty) | |
1077 | char *exp; | |
1078 | int from_tty; | |
1079 | { | |
1080 | struct format_data fmt; | |
1081 | register struct expression *expr; | |
1082 | register struct display *new; | |
1083 | ||
1084 | if (exp == 0) | |
1085 | { | |
1086 | do_displays (); | |
1087 | return; | |
1088 | } | |
1089 | ||
1090 | if (*exp == '/') | |
1091 | { | |
1092 | exp++; | |
1093 | fmt = decode_format (&exp, 0, 0); | |
1094 | if (fmt.size && fmt.format == 0) | |
1095 | fmt.format = 'x'; | |
1096 | if (fmt.format == 'i' || fmt.format == 's') | |
1097 | fmt.size = 'b'; | |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | fmt.format = 0; | |
1102 | fmt.size = 0; | |
1103 | fmt.count = 0; | |
1104 | } | |
1105 | ||
1106 | innermost_block = 0; | |
c4668207 | 1107 | expr = parse_expression (exp); |
bd5635a1 RP |
1108 | |
1109 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1110 | ||
1111 | new->exp = expr; | |
1112 | new->block = innermost_block; | |
1113 | new->next = display_chain; | |
1114 | new->number = ++display_number; | |
1115 | new->format = fmt; | |
1116 | new->status = enabled; | |
1117 | display_chain = new; | |
1118 | ||
1119 | if (from_tty && target_has_execution) | |
1120 | do_one_display (new); | |
1121 | ||
1122 | dont_repeat (); | |
1123 | } | |
1124 | ||
1125 | static void | |
1126 | free_display (d) | |
1127 | struct display *d; | |
1128 | { | |
4d38b5a8 JG |
1129 | free ((PTR)d->exp); |
1130 | free ((PTR)d); | |
bd5635a1 RP |
1131 | } |
1132 | ||
1133 | /* Clear out the display_chain. | |
1134 | Done when new symtabs are loaded, since this invalidates | |
1135 | the types stored in many expressions. */ | |
1136 | ||
1137 | void | |
1138 | clear_displays () | |
1139 | { | |
1140 | register struct display *d; | |
1141 | ||
a8a69e63 | 1142 | while ((d = display_chain) != NULL) |
bd5635a1 | 1143 | { |
4d38b5a8 | 1144 | free ((PTR)d->exp); |
bd5635a1 | 1145 | display_chain = d->next; |
4d38b5a8 | 1146 | free ((PTR)d); |
bd5635a1 RP |
1147 | } |
1148 | } | |
1149 | ||
1150 | /* Delete the auto-display number NUM. */ | |
1151 | ||
93fe4e33 | 1152 | static void |
bd5635a1 RP |
1153 | delete_display (num) |
1154 | int num; | |
1155 | { | |
1156 | register struct display *d1, *d; | |
1157 | ||
1158 | if (!display_chain) | |
1159 | error ("No display number %d.", num); | |
1160 | ||
1161 | if (display_chain->number == num) | |
1162 | { | |
1163 | d1 = display_chain; | |
1164 | display_chain = d1->next; | |
1165 | free_display (d1); | |
1166 | } | |
1167 | else | |
1168 | for (d = display_chain; ; d = d->next) | |
1169 | { | |
1170 | if (d->next == 0) | |
1171 | error ("No display number %d.", num); | |
1172 | if (d->next->number == num) | |
1173 | { | |
1174 | d1 = d->next; | |
1175 | d->next = d1->next; | |
1176 | free_display (d1); | |
1177 | break; | |
1178 | } | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | /* Delete some values from the auto-display chain. | |
1183 | Specify the element numbers. */ | |
1184 | ||
1185 | static void | |
4d38b5a8 | 1186 | undisplay_command (args, from_tty) |
bd5635a1 | 1187 | char *args; |
4d38b5a8 | 1188 | int from_tty; |
bd5635a1 RP |
1189 | { |
1190 | register char *p = args; | |
1191 | register char *p1; | |
1192 | register int num; | |
1193 | ||
1194 | if (args == 0) | |
1195 | { | |
1196 | if (query ("Delete all auto-display expressions? ")) | |
1197 | clear_displays (); | |
1198 | dont_repeat (); | |
1199 | return; | |
1200 | } | |
1201 | ||
1202 | while (*p) | |
1203 | { | |
1204 | p1 = p; | |
1205 | while (*p1 >= '0' && *p1 <= '9') p1++; | |
1206 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1207 | error ("Arguments must be display numbers."); | |
1208 | ||
1209 | num = atoi (p); | |
1210 | ||
1211 | delete_display (num); | |
1212 | ||
1213 | p = p1; | |
1214 | while (*p == ' ' || *p == '\t') p++; | |
1215 | } | |
1216 | dont_repeat (); | |
1217 | } | |
1218 | ||
1219 | /* Display a single auto-display. | |
1220 | Do nothing if the display cannot be printed in the current context, | |
1221 | or if the display is disabled. */ | |
1222 | ||
1223 | static void | |
1224 | do_one_display (d) | |
1225 | struct display *d; | |
1226 | { | |
1227 | int within_current_scope; | |
1228 | ||
1229 | if (d->status == disabled) | |
1230 | return; | |
1231 | ||
1232 | if (d->block) | |
1233 | within_current_scope = contained_in (get_selected_block (), d->block); | |
1234 | else | |
1235 | within_current_scope = 1; | |
1236 | if (!within_current_scope) | |
1237 | return; | |
1238 | ||
1239 | current_display_number = d->number; | |
1240 | ||
1241 | printf_filtered ("%d: ", d->number); | |
1242 | if (d->format.size) | |
1243 | { | |
1244 | CORE_ADDR addr; | |
1245 | ||
1246 | printf_filtered ("x/"); | |
1247 | if (d->format.count != 1) | |
1248 | printf_filtered ("%d", d->format.count); | |
1249 | printf_filtered ("%c", d->format.format); | |
1250 | if (d->format.format != 'i' && d->format.format != 's') | |
1251 | printf_filtered ("%c", d->format.size); | |
1252 | printf_filtered (" "); | |
1253 | print_expression (d->exp, stdout); | |
1254 | if (d->format.count != 1) | |
1255 | printf_filtered ("\n"); | |
1256 | else | |
1257 | printf_filtered (" "); | |
1258 | ||
e1ce8aa5 | 1259 | addr = value_as_pointer (evaluate_expression (d->exp)); |
bd5635a1 RP |
1260 | if (d->format.format == 'i') |
1261 | addr = ADDR_BITS_REMOVE (addr); | |
1262 | ||
1263 | do_examine (d->format, addr); | |
1264 | } | |
1265 | else | |
1266 | { | |
1267 | if (d->format.format) | |
1268 | printf_filtered ("/%c ", d->format.format); | |
1269 | print_expression (d->exp, stdout); | |
1270 | printf_filtered (" = "); | |
1271 | print_formatted (evaluate_expression (d->exp), | |
1272 | d->format.format, d->format.size); | |
1273 | printf_filtered ("\n"); | |
1274 | } | |
1275 | ||
1276 | fflush (stdout); | |
1277 | current_display_number = -1; | |
1278 | } | |
1279 | ||
1280 | /* Display all of the values on the auto-display chain which can be | |
1281 | evaluated in the current scope. */ | |
1282 | ||
1283 | void | |
1284 | do_displays () | |
1285 | { | |
1286 | register struct display *d; | |
1287 | ||
1288 | for (d = display_chain; d; d = d->next) | |
1289 | do_one_display (d); | |
1290 | } | |
1291 | ||
1292 | /* Delete the auto-display which we were in the process of displaying. | |
1293 | This is done when there is an error or a signal. */ | |
1294 | ||
1295 | void | |
1296 | disable_display (num) | |
1297 | int num; | |
1298 | { | |
1299 | register struct display *d; | |
1300 | ||
1301 | for (d = display_chain; d; d = d->next) | |
1302 | if (d->number == num) | |
1303 | { | |
1304 | d->status = disabled; | |
1305 | return; | |
1306 | } | |
1307 | printf ("No display number %d.\n", num); | |
1308 | } | |
1309 | ||
1310 | void | |
1311 | disable_current_display () | |
1312 | { | |
1313 | if (current_display_number >= 0) | |
1314 | { | |
1315 | disable_display (current_display_number); | |
1316 | fprintf (stderr, "Disabling display %d to avoid infinite recursion.\n", | |
1317 | current_display_number); | |
1318 | } | |
1319 | current_display_number = -1; | |
1320 | } | |
1321 | ||
1322 | static void | |
4d38b5a8 JG |
1323 | display_info (ignore, from_tty) |
1324 | char *ignore; | |
1325 | int from_tty; | |
bd5635a1 RP |
1326 | { |
1327 | register struct display *d; | |
1328 | ||
1329 | if (!display_chain) | |
1330 | printf ("There are no auto-display expressions now.\n"); | |
1331 | else | |
1332 | printf_filtered ("Auto-display expressions now in effect:\n\ | |
1333 | Num Enb Expression\n"); | |
1334 | ||
1335 | for (d = display_chain; d; d = d->next) | |
1336 | { | |
1337 | printf_filtered ("%d: %c ", d->number, "ny"[(int)d->status]); | |
1338 | if (d->format.size) | |
1339 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
1340 | d->format.format); | |
1341 | else if (d->format.format) | |
1342 | printf_filtered ("/%c ", d->format.format); | |
1343 | print_expression (d->exp, stdout); | |
1344 | if (d->block && !contained_in (get_selected_block (), d->block)) | |
1345 | printf_filtered (" (cannot be evaluated in the current context)"); | |
1346 | printf_filtered ("\n"); | |
1347 | fflush (stdout); | |
1348 | } | |
1349 | } | |
1350 | ||
93fe4e33 | 1351 | static void |
4d38b5a8 | 1352 | enable_display (args, from_tty) |
bd5635a1 | 1353 | char *args; |
4d38b5a8 | 1354 | int from_tty; |
bd5635a1 RP |
1355 | { |
1356 | register char *p = args; | |
1357 | register char *p1; | |
1358 | register int num; | |
1359 | register struct display *d; | |
1360 | ||
1361 | if (p == 0) | |
1362 | { | |
1363 | for (d = display_chain; d; d = d->next) | |
1364 | d->status = enabled; | |
1365 | } | |
1366 | else | |
1367 | while (*p) | |
1368 | { | |
1369 | p1 = p; | |
1370 | while (*p1 >= '0' && *p1 <= '9') | |
1371 | p1++; | |
1372 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1373 | error ("Arguments must be display numbers."); | |
1374 | ||
1375 | num = atoi (p); | |
1376 | ||
1377 | for (d = display_chain; d; d = d->next) | |
1378 | if (d->number == num) | |
1379 | { | |
1380 | d->status = enabled; | |
1381 | goto win; | |
1382 | } | |
1383 | printf ("No display number %d.\n", num); | |
1384 | win: | |
1385 | p = p1; | |
1386 | while (*p == ' ' || *p == '\t') | |
1387 | p++; | |
1388 | } | |
1389 | } | |
1390 | ||
e1ce8aa5 | 1391 | /* ARGSUSED */ |
93fe4e33 | 1392 | static void |
bd5635a1 RP |
1393 | disable_display_command (args, from_tty) |
1394 | char *args; | |
1395 | int from_tty; | |
1396 | { | |
1397 | register char *p = args; | |
1398 | register char *p1; | |
1399 | register struct display *d; | |
1400 | ||
1401 | if (p == 0) | |
1402 | { | |
1403 | for (d = display_chain; d; d = d->next) | |
1404 | d->status = disabled; | |
1405 | } | |
1406 | else | |
1407 | while (*p) | |
1408 | { | |
1409 | p1 = p; | |
1410 | while (*p1 >= '0' && *p1 <= '9') | |
1411 | p1++; | |
1412 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1413 | error ("Arguments must be display numbers."); | |
1414 | ||
1415 | disable_display (atoi (p)); | |
1416 | ||
1417 | p = p1; | |
1418 | while (*p == ' ' || *p == '\t') | |
1419 | p++; | |
1420 | } | |
1421 | } | |
1422 | ||
1423 | \f | |
1424 | /* Print the value in stack frame FRAME of a variable | |
1425 | specified by a struct symbol. */ | |
1426 | ||
1427 | void | |
1428 | print_variable_value (var, frame, stream) | |
1429 | struct symbol *var; | |
1430 | FRAME frame; | |
1431 | FILE *stream; | |
1432 | { | |
1433 | value val = read_var_value (var, frame); | |
1434 | value_print (val, stream, 0, Val_pretty_default); | |
1435 | } | |
1436 | ||
1437 | /* Print the arguments of a stack frame, given the function FUNC | |
1438 | running in that frame (as a symbol), the info on the frame, | |
1439 | and the number of args according to the stack frame (or -1 if unknown). */ | |
1440 | ||
1441 | /* References here and elsewhere to "number of args according to the | |
1442 | stack frame" appear in all cases to refer to "number of ints of args | |
1443 | according to the stack frame". At least for VAX, i386, isi. */ | |
1444 | ||
1445 | void | |
1446 | print_frame_args (func, fi, num, stream) | |
1447 | struct symbol *func; | |
1448 | struct frame_info *fi; | |
1449 | int num; | |
1450 | FILE *stream; | |
1451 | { | |
1452 | struct block *b; | |
1453 | int nsyms = 0; | |
1454 | int first = 1; | |
1455 | register int i; | |
1456 | register struct symbol *sym; | |
1457 | register value val; | |
1458 | /* Offset of next stack argument beyond the one we have seen that is | |
1459 | at the highest offset. | |
1460 | -1 if we haven't come to a stack argument yet. */ | |
e1ce8aa5 | 1461 | long highest_offset = -1; |
bd5635a1 RP |
1462 | int arg_size; |
1463 | /* Number of ints of arguments that we have printed so far. */ | |
1464 | int args_printed = 0; | |
1465 | ||
1466 | if (func) | |
1467 | { | |
1468 | b = SYMBOL_BLOCK_VALUE (func); | |
1469 | nsyms = BLOCK_NSYMS (b); | |
1470 | } | |
1471 | ||
1472 | for (i = 0; i < nsyms; i++) | |
1473 | { | |
1474 | QUIT; | |
1475 | sym = BLOCK_SYM (b, i); | |
1476 | ||
c4668207 JG |
1477 | /* Keep track of the highest stack argument offset seen, and |
1478 | skip over any kinds of symbols we don't care about. */ | |
bd5635a1 RP |
1479 | |
1480 | switch (SYMBOL_CLASS (sym)) { | |
bd5635a1 RP |
1481 | case LOC_ARG: |
1482 | case LOC_REF_ARG: | |
1483 | { | |
e1ce8aa5 | 1484 | long current_offset = SYMBOL_VALUE (sym); |
bd5635a1 RP |
1485 | |
1486 | arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); | |
1487 | ||
1488 | /* Compute address of next argument by adding the size of | |
1489 | this argument and rounding to an int boundary. */ | |
1490 | current_offset | |
1491 | = ((current_offset + arg_size + sizeof (int) - 1) | |
1492 | & ~(sizeof (int) - 1)); | |
1493 | ||
1494 | /* If this is the highest offset seen yet, set highest_offset. */ | |
1495 | if (highest_offset == -1 | |
1496 | || (current_offset > highest_offset)) | |
1497 | highest_offset = current_offset; | |
1498 | ||
1499 | /* Add the number of ints we're about to print to args_printed. */ | |
1500 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); | |
1501 | } | |
1502 | ||
c4668207 JG |
1503 | /* We care about types of symbols, but don't need to keep track of |
1504 | stack offsets in them. */ | |
1505 | case LOC_REGPARM: | |
1506 | case LOC_LOCAL_ARG: | |
bd5635a1 | 1507 | break; |
c4668207 JG |
1508 | |
1509 | /* Other types of symbols we just skip over. */ | |
1510 | default: | |
1511 | continue; | |
bd5635a1 RP |
1512 | } |
1513 | ||
a8a69e63 FF |
1514 | /* If the symbol name is non-null, |
1515 | we have to re-look-up the symbol because arguments often have | |
c4668207 JG |
1516 | two entries (one a parameter, one a register or local), and the one |
1517 | we want is the non-parm, which lookup_symbol will find for | |
a8a69e63 | 1518 | us. After this, sym could be any SYMBOL_CLASS... |
8f869b45 | 1519 | |
a8a69e63 FF |
1520 | Null parameter names occur on the RS/6000, for traceback tables. |
1521 | FIXME, should we even print them? */ | |
1522 | ||
1523 | if (*SYMBOL_NAME (sym)) | |
1524 | sym = lookup_symbol (SYMBOL_NAME (sym), | |
c4668207 JG |
1525 | b, VAR_NAMESPACE, (int *)NULL, (struct symtab **)NULL); |
1526 | ||
bd5635a1 RP |
1527 | /* Print the current arg. */ |
1528 | if (! first) | |
1529 | fprintf_filtered (stream, ", "); | |
1530 | wrap_here (" "); | |
2e4964ad | 1531 | fprint_symbol (stream, SYMBOL_SOURCE_NAME (sym)); |
bd5635a1 RP |
1532 | fputs_filtered ("=", stream); |
1533 | ||
1534 | /* Avoid value_print because it will deref ref parameters. We just | |
1535 | want to print their addresses. Print ??? for args whose address | |
d11c44f1 JG |
1536 | we do not know. We pass 2 as "recurse" to val_print because our |
1537 | standard indentation here is 4 spaces, and val_print indents | |
1538 | 2 for each recurse. */ | |
bd5635a1 RP |
1539 | val = read_var_value (sym, FRAME_INFO_ID (fi)); |
1540 | if (val) | |
1541 | val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), VALUE_ADDRESS (val), | |
d11c44f1 | 1542 | stream, 0, 0, 2, Val_no_prettyprint); |
bd5635a1 RP |
1543 | else |
1544 | fputs_filtered ("???", stream); | |
1545 | first = 0; | |
1546 | } | |
1547 | ||
1548 | /* Don't print nameless args in situations where we don't know | |
1549 | enough about the stack to find them. */ | |
1550 | if (num != -1) | |
1551 | { | |
e1ce8aa5 | 1552 | long start; |
bd5635a1 RP |
1553 | |
1554 | if (highest_offset == -1) | |
1555 | start = FRAME_ARGS_SKIP; | |
1556 | else | |
1557 | start = highest_offset; | |
1558 | ||
7dc15bb7 JG |
1559 | print_frame_nameless_args (fi, start, num - args_printed, |
1560 | first, stream); | |
bd5635a1 RP |
1561 | } |
1562 | } | |
1563 | ||
1564 | /* Print nameless args on STREAM. | |
7dc15bb7 | 1565 | FI is the frameinfo for this frame, START is the offset |
bd5635a1 RP |
1566 | of the first nameless arg, and NUM is the number of nameless args to |
1567 | print. FIRST is nonzero if this is the first argument (not just | |
1568 | the first nameless arg). */ | |
1569 | static void | |
7dc15bb7 JG |
1570 | print_frame_nameless_args (fi, start, num, first, stream) |
1571 | struct frame_info *fi; | |
e1ce8aa5 | 1572 | long start; |
bd5635a1 RP |
1573 | int num; |
1574 | int first; | |
1575 | FILE *stream; | |
1576 | { | |
1577 | int i; | |
7dc15bb7 JG |
1578 | CORE_ADDR argsaddr; |
1579 | long arg_value; | |
1580 | ||
bd5635a1 RP |
1581 | for (i = 0; i < num; i++) |
1582 | { | |
1583 | QUIT; | |
7dc15bb7 JG |
1584 | #ifdef NAMELESS_ARG_VALUE |
1585 | NAMELESS_ARG_VALUE (fi, start, &arg_value); | |
1586 | #else | |
1587 | argsaddr = FRAME_ARGS_ADDRESS (fi); | |
1588 | if (!argsaddr) | |
1589 | return; | |
1590 | ||
1591 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
1592 | #endif | |
1593 | ||
bd5635a1 RP |
1594 | if (!first) |
1595 | fprintf_filtered (stream, ", "); | |
7dc15bb7 JG |
1596 | |
1597 | #ifdef PRINT_NAMELESS_INTEGER | |
1598 | PRINT_NAMELESS_INTEGER (stream, arg_value); | |
bd5635a1 | 1599 | #else |
7dc15bb7 JG |
1600 | #ifdef PRINT_TYPELESS_INTEGER |
1601 | PRINT_TYPELESS_INTEGER (stream, builtin_type_int, (LONGEST) arg_value); | |
1602 | #else | |
1603 | fprintf_filtered (stream, "%d", arg_value); | |
1604 | #endif /* PRINT_TYPELESS_INTEGER */ | |
1605 | #endif /* PRINT_NAMELESS_INTEGER */ | |
bd5635a1 RP |
1606 | first = 0; |
1607 | start += sizeof (int); | |
1608 | } | |
1609 | } | |
1610 | \f | |
e1ce8aa5 | 1611 | /* ARGSUSED */ |
bd5635a1 RP |
1612 | static void |
1613 | printf_command (arg, from_tty) | |
1614 | char *arg; | |
1615 | int from_tty; | |
1616 | { | |
1617 | register char *f; | |
1618 | register char *s = arg; | |
1619 | char *string; | |
1620 | value *val_args; | |
1621 | int nargs = 0; | |
1622 | int allocated_args = 20; | |
1623 | char *arg_bytes; | |
1624 | ||
1625 | val_args = (value *) xmalloc (allocated_args * sizeof (value)); | |
1626 | ||
1627 | if (s == 0) | |
1628 | error_no_arg ("format-control string and values to print"); | |
1629 | ||
1630 | /* Skip white space before format string */ | |
1631 | while (*s == ' ' || *s == '\t') s++; | |
1632 | ||
1633 | /* A format string should follow, enveloped in double quotes */ | |
1634 | if (*s++ != '"') | |
1635 | error ("Bad format string, missing '\"'."); | |
1636 | ||
1637 | /* Parse the format-control string and copy it into the string STRING, | |
1638 | processing some kinds of escape sequence. */ | |
1639 | ||
1640 | f = string = (char *) alloca (strlen (s) + 1); | |
1641 | while (*s != '"') | |
1642 | { | |
1643 | int c = *s++; | |
1644 | switch (c) | |
1645 | { | |
1646 | case '\0': | |
1647 | error ("Bad format string, non-terminated '\"'."); | |
1648 | /* doesn't return */ | |
1649 | ||
1650 | case '\\': | |
1651 | switch (c = *s++) | |
1652 | { | |
1653 | case '\\': | |
1654 | *f++ = '\\'; | |
1655 | break; | |
1656 | case 'n': | |
1657 | *f++ = '\n'; | |
1658 | break; | |
1659 | case 't': | |
1660 | *f++ = '\t'; | |
1661 | break; | |
1662 | case 'r': | |
1663 | *f++ = '\r'; | |
1664 | break; | |
1665 | case '"': | |
1666 | *f++ = '"'; | |
1667 | break; | |
1668 | default: | |
1669 | /* ??? TODO: handle other escape sequences */ | |
1670 | error ("Unrecognized \\ escape character in format string."); | |
1671 | } | |
1672 | break; | |
1673 | ||
1674 | default: | |
1675 | *f++ = c; | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | /* Skip over " and following space and comma. */ | |
1680 | s++; | |
1681 | *f++ = '\0'; | |
1682 | while (*s == ' ' || *s == '\t') s++; | |
1683 | ||
1684 | if (*s != ',' && *s != 0) | |
1685 | error ("Invalid argument syntax"); | |
1686 | ||
1687 | if (*s == ',') s++; | |
1688 | while (*s == ' ' || *s == '\t') s++; | |
1689 | ||
1690 | { | |
1691 | /* Now scan the string for %-specs and see what kinds of args they want. | |
1692 | argclass[I] classifies the %-specs so we can give vprintf something | |
1693 | of the right size. */ | |
1694 | ||
1695 | enum argclass {int_arg, string_arg, double_arg, long_long_arg}; | |
1696 | enum argclass *argclass; | |
1697 | int nargs_wanted; | |
1698 | int argindex; | |
1699 | int lcount; | |
1700 | int i; | |
1701 | ||
1702 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
1703 | nargs_wanted = 0; | |
1704 | f = string; | |
1705 | while (*f) | |
1706 | if (*f++ == '%') | |
1707 | { | |
1708 | lcount = 0; | |
1709 | while (strchr ("0123456789.hlL-+ #", *f)) | |
1710 | { | |
1711 | if (*f == 'l' || *f == 'L') | |
1712 | lcount++; | |
1713 | f++; | |
1714 | } | |
1715 | if (*f == 's') | |
1716 | argclass[nargs_wanted++] = string_arg; | |
1717 | else if (*f == 'e' || *f == 'f' || *f == 'g') | |
1718 | argclass[nargs_wanted++] = double_arg; | |
1719 | else if (lcount > 1) | |
1720 | argclass[nargs_wanted++] = long_long_arg; | |
1721 | else if (*f != '%') | |
1722 | argclass[nargs_wanted++] = int_arg; | |
1723 | f++; | |
1724 | } | |
1725 | ||
1726 | /* Now, parse all arguments and evaluate them. | |
1727 | Store the VALUEs in VAL_ARGS. */ | |
1728 | ||
1729 | while (*s != '\0') | |
1730 | { | |
1731 | char *s1; | |
1732 | if (nargs == allocated_args) | |
93fe4e33 | 1733 | val_args = (value *) xrealloc ((char *) val_args, |
bd5635a1 RP |
1734 | (allocated_args *= 2) |
1735 | * sizeof (value)); | |
1736 | s1 = s; | |
1737 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
1738 | ||
1739 | /* If format string wants a float, unchecked-convert the value to | |
1740 | floating point of the same size */ | |
1741 | ||
1742 | if (argclass[nargs] == double_arg) | |
1743 | { | |
1744 | if (TYPE_LENGTH (VALUE_TYPE (val_args[nargs])) == sizeof (float)) | |
1745 | VALUE_TYPE (val_args[nargs]) = builtin_type_float; | |
1746 | if (TYPE_LENGTH (VALUE_TYPE (val_args[nargs])) == sizeof (double)) | |
1747 | VALUE_TYPE (val_args[nargs]) = builtin_type_double; | |
1748 | } | |
1749 | nargs++; | |
1750 | s = s1; | |
1751 | if (*s == ',') | |
1752 | s++; | |
1753 | } | |
1754 | ||
1755 | if (nargs != nargs_wanted) | |
1756 | error ("Wrong number of arguments for specified format-string"); | |
1757 | ||
1758 | /* Now lay out an argument-list containing the arguments | |
1759 | as doubles, integers and C pointers. */ | |
1760 | ||
1761 | arg_bytes = (char *) alloca (sizeof (double) * nargs); | |
1762 | argindex = 0; | |
1763 | for (i = 0; i < nargs; i++) | |
1764 | { | |
1765 | if (argclass[i] == string_arg) | |
1766 | { | |
1767 | char *str; | |
e1ce8aa5 JK |
1768 | CORE_ADDR tem; |
1769 | int j; | |
1770 | tem = value_as_pointer (val_args[i]); | |
bd5635a1 RP |
1771 | |
1772 | /* This is a %s argument. Find the length of the string. */ | |
1773 | for (j = 0; ; j++) | |
1774 | { | |
1775 | char c; | |
1776 | QUIT; | |
1777 | read_memory (tem + j, &c, 1); | |
1778 | if (c == 0) | |
1779 | break; | |
1780 | } | |
1781 | ||
1782 | /* Copy the string contents into a string inside GDB. */ | |
1783 | str = (char *) alloca (j + 1); | |
1784 | read_memory (tem, str, j); | |
1785 | str[j] = 0; | |
1786 | ||
1787 | /* Pass address of internal copy as the arg to vprintf. */ | |
1788 | *((int *) &arg_bytes[argindex]) = (int) str; | |
1789 | argindex += sizeof (int); | |
1790 | } | |
1791 | else if (VALUE_TYPE (val_args[i])->code == TYPE_CODE_FLT) | |
1792 | { | |
1793 | *((double *) &arg_bytes[argindex]) = value_as_double (val_args[i]); | |
1794 | argindex += sizeof (double); | |
1795 | } | |
1796 | else | |
1797 | #ifdef LONG_LONG | |
1798 | if (argclass[i] == long_long_arg) | |
1799 | { | |
1800 | *(long long *) &arg_bytes[argindex] = value_as_long (val_args[i]); | |
1801 | argindex += sizeof (long long); | |
1802 | } | |
1803 | else | |
1804 | #endif | |
1805 | { | |
e1ce8aa5 JK |
1806 | *((long *) &arg_bytes[argindex]) = value_as_long (val_args[i]); |
1807 | argindex += sizeof (long); | |
bd5635a1 RP |
1808 | } |
1809 | } | |
1810 | } | |
1811 | ||
1812 | /* There is not a standard way to make a va_list, so we need | |
1813 | to do various things for different systems. */ | |
1814 | #if defined (__INT_VARARGS_H) | |
1815 | { | |
1816 | va_list list; | |
1817 | ||
1818 | list.__va_arg = 0; | |
1819 | list.__va_stk = (int *) arg_bytes; | |
1820 | list.__va_reg = (int *) arg_bytes; | |
1821 | vprintf (string, list); | |
1822 | } | |
1823 | #else /* No __INT_VARARGS_H. */ | |
1824 | vprintf (string, arg_bytes); | |
1825 | #endif /* No __INT_VARARGS_H. */ | |
1826 | } | |
1827 | \f | |
1828 | /* Helper function for asdump_command. Finds the bounds of a function | |
1829 | for a specified section of text. PC is an address within the | |
1830 | function which you want bounds for; *LOW and *HIGH are set to the | |
1831 | beginning (inclusive) and end (exclusive) of the function. This | |
1832 | function returns 1 on success and 0 on failure. */ | |
1833 | ||
1834 | static int | |
1835 | containing_function_bounds (pc, low, high) | |
1836 | CORE_ADDR pc, *low, *high; | |
1837 | { | |
1838 | int scan; | |
1839 | ||
1840 | if (!find_pc_partial_function (pc, 0, low)) | |
1841 | return 0; | |
1842 | ||
1843 | scan = *low; | |
1844 | do { | |
1845 | scan++; | |
1846 | if (!find_pc_partial_function (scan, 0, high)) | |
1847 | return 0; | |
1848 | } while (*low == *high); | |
1849 | ||
1850 | return 1; | |
1851 | } | |
1852 | ||
1853 | /* Dump a specified section of assembly code. With no command line | |
1854 | arguments, this command will dump the assembly code for the | |
1855 | function surrounding the pc value in the selected frame. With one | |
1856 | argument, it will dump the assembly code surrounding that pc value. | |
1857 | Two arguments are interpeted as bounds within which to dump | |
1858 | assembly. */ | |
1859 | ||
e1ce8aa5 | 1860 | /* ARGSUSED */ |
bd5635a1 RP |
1861 | static void |
1862 | disassemble_command (arg, from_tty) | |
1863 | char *arg; | |
1864 | int from_tty; | |
1865 | { | |
1866 | CORE_ADDR low, high; | |
1867 | CORE_ADDR pc; | |
1868 | char *space_index; | |
1869 | ||
1870 | if (!arg) | |
1871 | { | |
1872 | if (!selected_frame) | |
1873 | error ("No frame selected.\n"); | |
1874 | ||
1875 | pc = get_frame_pc (selected_frame); | |
1876 | if (!containing_function_bounds (pc, &low, &high)) | |
1877 | error ("No function contains pc specified by selected frame.\n"); | |
1878 | } | |
1879 | else if (!(space_index = (char *) strchr (arg, ' '))) | |
1880 | { | |
1881 | /* One argument. */ | |
1882 | pc = parse_and_eval_address (arg); | |
1883 | if (!containing_function_bounds (pc, &low, &high)) | |
1884 | error ("No function contains specified pc.\n"); | |
1885 | } | |
1886 | else | |
1887 | { | |
1888 | /* Two arguments. */ | |
1889 | *space_index = '\0'; | |
1890 | low = parse_and_eval_address (arg); | |
1891 | high = parse_and_eval_address (space_index + 1); | |
1892 | } | |
1893 | ||
1894 | printf_filtered ("Dump of assembler code "); | |
1895 | if (!space_index) | |
1896 | { | |
1897 | char *name; | |
1898 | find_pc_partial_function (pc, &name, 0); | |
1899 | printf_filtered ("for function %s:\n", name); | |
1900 | } | |
1901 | else | |
f77ad505 FF |
1902 | { |
1903 | printf_filtered ("from %s ", local_hex_string(low)); | |
1904 | printf_filtered ("to %s:\n", local_hex_string(high)); | |
1905 | } | |
bd5635a1 RP |
1906 | |
1907 | /* Dump the specified range. */ | |
1908 | for (pc = low; pc < high; ) | |
1909 | { | |
1910 | QUIT; | |
1911 | print_address (pc, stdout); | |
1912 | printf_filtered (":\t"); | |
1913 | pc += print_insn (pc, stdout); | |
1914 | printf_filtered ("\n"); | |
1915 | } | |
1916 | printf_filtered ("End of assembler dump.\n"); | |
1917 | fflush (stdout); | |
1918 | } | |
1919 | ||
1920 | \f | |
1921 | void | |
1922 | _initialize_printcmd () | |
1923 | { | |
1924 | current_display_number = -1; | |
1925 | ||
1926 | add_info ("address", address_info, | |
1927 | "Describe where variable VAR is stored."); | |
1928 | ||
1929 | add_com ("x", class_vars, x_command, | |
1930 | "Examine memory: x/FMT ADDRESS.\n\ | |
1931 | ADDRESS is an expression for the memory address to examine.\n\ | |
1932 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
1933 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1934 | f(float), a(address), i(instruction), c(char) and s(string).\n\ | |
1935 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
1936 | g is meaningful only with f, for type double.\n\ | |
1937 | The specified number of objects of the specified size are printed\n\ | |
1938 | according to the format.\n\n\ | |
1939 | Defaults for format and size letters are those previously used.\n\ | |
1940 | Default count is 1. Default address is following last thing printed\n\ | |
1941 | with this command or \"print\"."); | |
1942 | ||
1943 | add_com ("disassemble", class_vars, disassemble_command, | |
1944 | "Disassemble a specified section of memory.\n\ | |
1945 | Default is the function surrounding the pc of the selected frame.\n\ | |
1946 | With a single argument, the function surrounding that address is dumped.\n\ | |
1947 | Two arguments are taken as a range of memory to dump."); | |
1948 | ||
bd5635a1 RP |
1949 | #if 0 |
1950 | add_com ("whereis", class_vars, whereis_command, | |
1951 | "Print line number and file of definition of variable."); | |
1952 | #endif | |
1953 | ||
1954 | add_info ("display", display_info, | |
1955 | "Expressions to display when program stops, with code numbers."); | |
1956 | ||
1957 | add_cmd ("undisplay", class_vars, undisplay_command, | |
1958 | "Cancel some expressions to be displayed when program stops.\n\ | |
1959 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1960 | No argument means cancel all automatic-display expressions.\n\ | |
1961 | \"delete display\" has the same effect as this command.\n\ | |
1962 | Do \"info display\" to see current list of code numbers.", | |
1963 | &cmdlist); | |
1964 | ||
1965 | add_com ("display", class_vars, display_command, | |
1966 | "Print value of expression EXP each time the program stops.\n\ | |
1967 | /FMT may be used before EXP as in the \"print\" command.\n\ | |
1968 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
1969 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
1970 | and examining is done as in the \"x\" command.\n\n\ | |
1971 | With no argument, display all currently requested auto-display expressions.\n\ | |
1972 | Use \"undisplay\" to cancel display requests previously made."); | |
1973 | ||
1974 | add_cmd ("display", class_vars, enable_display, | |
1975 | "Enable some expressions to be displayed when program stops.\n\ | |
1976 | Arguments are the code numbers of the expressions to resume displaying.\n\ | |
1977 | No argument means enable all automatic-display expressions.\n\ | |
1978 | Do \"info display\" to see current list of code numbers.", &enablelist); | |
1979 | ||
1980 | add_cmd ("display", class_vars, disable_display_command, | |
1981 | "Disable some expressions to be displayed when program stops.\n\ | |
1982 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1983 | No argument means disable all automatic-display expressions.\n\ | |
1984 | Do \"info display\" to see current list of code numbers.", &disablelist); | |
1985 | ||
1986 | add_cmd ("display", class_vars, undisplay_command, | |
1987 | "Cancel some expressions to be displayed when program stops.\n\ | |
1988 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1989 | No argument means cancel all automatic-display expressions.\n\ | |
1990 | Do \"info display\" to see current list of code numbers.", &deletelist); | |
1991 | ||
1992 | add_com ("printf", class_vars, printf_command, | |
1993 | "printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
1994 | This is useful for formatted output in user-defined commands."); | |
1995 | add_com ("output", class_vars, output_command, | |
1996 | "Like \"print\" but don't put in value history and don't print newline.\n\ | |
1997 | This is useful in user-defined commands."); | |
1998 | ||
1999 | add_prefix_cmd ("set", class_vars, set_command, | |
45fe3db4 FF |
2000 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
2001 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2002 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2003 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2004 | variable in the program being debugged. EXP is any valid expression.\n\ | |
bd5635a1 RP |
2005 | Use \"set variable\" for variables with names identical to set subcommands.\n\ |
2006 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ | |
2007 | You can see these environment settings with the \"show\" command.", | |
2008 | &setlist, "set ", 1, &cmdlist); | |
2009 | ||
2010 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
2011 | add_com ("call", class_vars, call_command, | |
2012 | "Call a function in the inferior process.\n\ | |
c4668207 JG |
2013 | The argument is the function name and arguments, in the notation of the\n\ |
2014 | current working language. The result is printed and saved in the value\n\ | |
2015 | history, if it is not void."); | |
bd5635a1 RP |
2016 | |
2017 | add_cmd ("variable", class_vars, set_command, | |
45fe3db4 FF |
2018 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
2019 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2020 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2021 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2022 | variable in the program being debugged. EXP is any valid expression.\n\ | |
bd5635a1 RP |
2023 | This may usually be abbreviated to simply \"set\".", |
2024 | &setlist); | |
2025 | ||
2026 | add_com ("print", class_vars, print_command, | |
2027 | concat ("Print value of expression EXP.\n\ | |
2028 | Variables accessible are those of the lexical environment of the selected\n\ | |
2029 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2030 | \n\ | |
2031 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2032 | $$NUM refers to NUM'th value back from the last one.\n\ | |
2033 | Names starting with $ refer to registers (with the values they would have\n\ | |
2034 | if the program were to return to the stack frame now selected, restoring\n\ | |
2035 | all registers saved by frames farther in) or else to debugger\n\ | |
2036 | \"convenience\" variables (any such name not a known register).\n\ | |
2037 | Use assignment expressions to give values to convenience variables.\n", | |
2038 | "\n\ | |
2039 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ | |
2040 | @ is a binary operator for treating consecutive data objects\n\ | |
2041 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2042 | element is FOO, whose second element is stored in the space following\n\ | |
2043 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
2044 | resides in memory.\n", | |
2045 | "\n\ | |
2046 | EXP may be preceded with /FMT, where FMT is a format letter\n\ | |
7d9884b9 | 2047 | but no count or size letter (see \"x\" command).", NULL)); |
bd5635a1 RP |
2048 | add_com_alias ("p", "print", class_vars, 1); |
2049 | ||
2050 | add_com ("inspect", class_vars, inspect_command, | |
2051 | "Same as \"print\" command, except that if you are running in the epoch\n\ | |
2052 | environment, the value is printed in its own window."); | |
f77ad505 FF |
2053 | |
2054 | add_show_from_set ( | |
2055 | add_set_cmd ("max-symbolic-offset", no_class, var_uinteger, | |
2056 | (char *)&max_symbolic_offset, | |
2057 | "Set the largest offset that will be printed in <symbol+1234> form.", | |
2058 | &setprintlist), | |
2059 | &showprintlist); | |
bd5635a1 | 2060 | } |