Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
8926118c AC |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, |
4 | 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software | |
5 | 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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
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 JM |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdb_string.h" | |
26 | #include "frame.h" | |
27 | #include "symtab.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "value.h" | |
30 | #include "language.h" | |
31 | #include "expression.h" | |
32 | #include "gdbcore.h" | |
33 | #include "gdbcmd.h" | |
34 | #include "target.h" | |
35 | #include "breakpoint.h" | |
36 | #include "demangle.h" | |
37 | #include "valprint.h" | |
38 | #include "annotate.h" | |
c5aa993b JM |
39 | #include "symfile.h" /* for overlay functions */ |
40 | #include "objfiles.h" /* ditto */ | |
c94fdfd0 | 41 | #include "completer.h" /* for completion functions */ |
8b93c638 | 42 | #include "ui-out.h" |
261397f8 | 43 | #include "gdb_assert.h" |
c906108c SS |
44 | |
45 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ | |
46 | extern int addressprint; /* Whether to print hex addresses in HLL " */ | |
47 | ||
48 | struct format_data | |
c5aa993b JM |
49 | { |
50 | int count; | |
51 | char format; | |
52 | char size; | |
53 | }; | |
c906108c SS |
54 | |
55 | /* Last specified output format. */ | |
56 | ||
57 | static char last_format = 'x'; | |
58 | ||
59 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
60 | ||
61 | static char last_size = 'w'; | |
62 | ||
63 | /* Default address to examine next. */ | |
64 | ||
65 | static CORE_ADDR next_address; | |
66 | ||
67 | /* Default section to examine next. */ | |
68 | ||
69 | static asection *next_section; | |
70 | ||
71 | /* Last address examined. */ | |
72 | ||
73 | static CORE_ADDR last_examine_address; | |
74 | ||
75 | /* Contents of last address examined. | |
76 | This is not valid past the end of the `x' command! */ | |
77 | ||
3d6d86c6 | 78 | static struct value *last_examine_value; |
c906108c SS |
79 | |
80 | /* Largest offset between a symbolic value and an address, that will be | |
81 | printed as `0x1234 <symbol+offset>'. */ | |
82 | ||
83 | static unsigned int max_symbolic_offset = UINT_MAX; | |
84 | ||
85 | /* Append the source filename and linenumber of the symbol when | |
86 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
87 | static int print_symbol_filename = 0; | |
88 | ||
89 | /* Number of auto-display expression currently being displayed. | |
90 | So that we can disable it if we get an error or a signal within it. | |
91 | -1 when not doing one. */ | |
92 | ||
93 | int current_display_number; | |
94 | ||
95 | /* Flag to low-level print routines that this value is being printed | |
96 | in an epoch window. We'd like to pass this as a parameter, but | |
97 | every routine would need to take it. Perhaps we can encapsulate | |
98 | this in the I/O stream once we have GNU stdio. */ | |
99 | ||
100 | int inspect_it = 0; | |
101 | ||
102 | struct display | |
c5aa993b JM |
103 | { |
104 | /* Chain link to next auto-display item. */ | |
105 | struct display *next; | |
106 | /* Expression to be evaluated and displayed. */ | |
107 | struct expression *exp; | |
108 | /* Item number of this auto-display item. */ | |
109 | int number; | |
110 | /* Display format specified. */ | |
111 | struct format_data format; | |
112 | /* Innermost block required by this expression when evaluated */ | |
113 | struct block *block; | |
114 | /* Status of this display (enabled or disabled) */ | |
b5de0fa7 | 115 | int enabled_p; |
c5aa993b | 116 | }; |
c906108c SS |
117 | |
118 | /* Chain of expressions whose values should be displayed | |
119 | automatically each time the program stops. */ | |
120 | ||
121 | static struct display *display_chain; | |
122 | ||
123 | static int display_number; | |
124 | ||
125 | /* Prototypes for exported functions. */ | |
126 | ||
a14ed312 | 127 | void output_command (char *, int); |
c906108c | 128 | |
a14ed312 | 129 | void _initialize_printcmd (void); |
c906108c SS |
130 | |
131 | /* Prototypes for local functions. */ | |
132 | ||
a14ed312 | 133 | static void delete_display (int); |
c906108c | 134 | |
a14ed312 | 135 | static void enable_display (char *, int); |
c906108c | 136 | |
a14ed312 | 137 | static void disable_display_command (char *, int); |
c906108c | 138 | |
a14ed312 | 139 | static void disassemble_command (char *, int); |
c906108c | 140 | |
a14ed312 | 141 | static void printf_command (char *, int); |
c906108c | 142 | |
d9fcf2fb JM |
143 | static void print_frame_nameless_args (struct frame_info *, long, |
144 | int, int, struct ui_file *); | |
c906108c | 145 | |
a14ed312 | 146 | static void display_info (char *, int); |
c906108c | 147 | |
a14ed312 | 148 | static void do_one_display (struct display *); |
c906108c | 149 | |
a14ed312 | 150 | static void undisplay_command (char *, int); |
c906108c | 151 | |
a14ed312 | 152 | static void free_display (struct display *); |
c906108c | 153 | |
a14ed312 | 154 | static void display_command (char *, int); |
c906108c | 155 | |
a14ed312 | 156 | void x_command (char *, int); |
c906108c | 157 | |
a14ed312 | 158 | static void address_info (char *, int); |
c906108c | 159 | |
a14ed312 | 160 | static void set_command (char *, int); |
c906108c | 161 | |
a14ed312 | 162 | static void call_command (char *, int); |
c906108c | 163 | |
a14ed312 | 164 | static void inspect_command (char *, int); |
c906108c | 165 | |
a14ed312 | 166 | static void print_command (char *, int); |
c906108c | 167 | |
a14ed312 | 168 | static void print_command_1 (char *, int, int); |
c906108c | 169 | |
a14ed312 | 170 | static void validate_format (struct format_data, char *); |
c906108c | 171 | |
a14ed312 KB |
172 | static void do_examine (struct format_data, CORE_ADDR addr, |
173 | asection * section); | |
c906108c | 174 | |
3d6d86c6 | 175 | static void print_formatted (struct value *, int, int, struct ui_file *); |
c906108c | 176 | |
a14ed312 | 177 | static struct format_data decode_format (char **, int, int); |
c906108c | 178 | |
d9fcf2fb | 179 | static int print_insn (CORE_ADDR, struct ui_file *); |
c906108c | 180 | |
a14ed312 | 181 | static void sym_info (char *, int); |
c906108c | 182 | \f |
c5aa993b | 183 | |
c906108c SS |
184 | /* Decode a format specification. *STRING_PTR should point to it. |
185 | OFORMAT and OSIZE are used as defaults for the format and size | |
186 | if none are given in the format specification. | |
187 | If OSIZE is zero, then the size field of the returned value | |
188 | should be set only if a size is explicitly specified by the | |
189 | user. | |
190 | The structure returned describes all the data | |
191 | found in the specification. In addition, *STRING_PTR is advanced | |
192 | past the specification and past all whitespace following it. */ | |
193 | ||
194 | static struct format_data | |
fba45db2 | 195 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
196 | { |
197 | struct format_data val; | |
198 | register char *p = *string_ptr; | |
199 | ||
200 | val.format = '?'; | |
201 | val.size = '?'; | |
202 | val.count = 1; | |
203 | ||
204 | if (*p >= '0' && *p <= '9') | |
205 | val.count = atoi (p); | |
c5aa993b JM |
206 | while (*p >= '0' && *p <= '9') |
207 | p++; | |
c906108c SS |
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 | else if (*p >= 'a' && *p <= 'z') | |
216 | val.format = *p++; | |
217 | else | |
218 | break; | |
219 | } | |
220 | ||
c5aa993b JM |
221 | while (*p == ' ' || *p == '\t') |
222 | p++; | |
c906108c SS |
223 | *string_ptr = p; |
224 | ||
225 | /* Set defaults for format and size if not specified. */ | |
226 | if (val.format == '?') | |
227 | { | |
228 | if (val.size == '?') | |
229 | { | |
230 | /* Neither has been specified. */ | |
231 | val.format = oformat; | |
232 | val.size = osize; | |
233 | } | |
234 | else | |
235 | /* If a size is specified, any format makes a reasonable | |
236 | default except 'i'. */ | |
237 | val.format = oformat == 'i' ? 'x' : oformat; | |
238 | } | |
239 | else if (val.size == '?') | |
240 | switch (val.format) | |
241 | { | |
242 | case 'a': | |
243 | case 's': | |
244 | /* Pick the appropriate size for an address. */ | |
245 | if (TARGET_PTR_BIT == 64) | |
246 | val.size = osize ? 'g' : osize; | |
247 | else if (TARGET_PTR_BIT == 32) | |
248 | val.size = osize ? 'w' : osize; | |
249 | else if (TARGET_PTR_BIT == 16) | |
250 | val.size = osize ? 'h' : osize; | |
251 | else | |
252 | /* Bad value for TARGET_PTR_BIT */ | |
e1e9e218 | 253 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
254 | break; |
255 | case 'f': | |
256 | /* Floating point has to be word or giantword. */ | |
257 | if (osize == 'w' || osize == 'g') | |
258 | val.size = osize; | |
259 | else | |
260 | /* Default it to giantword if the last used size is not | |
261 | appropriate. */ | |
262 | val.size = osize ? 'g' : osize; | |
263 | break; | |
264 | case 'c': | |
265 | /* Characters default to one byte. */ | |
266 | val.size = osize ? 'b' : osize; | |
267 | break; | |
268 | default: | |
269 | /* The default is the size most recently specified. */ | |
270 | val.size = osize; | |
271 | } | |
272 | ||
273 | return val; | |
274 | } | |
275 | \f | |
2acceee2 | 276 | /* Print value VAL on stream according to FORMAT, a letter or 0. |
c906108c SS |
277 | Do not end with a newline. |
278 | 0 means print VAL according to its own type. | |
279 | SIZE is the letter for the size of datum being printed. | |
280 | This is used to pad hex numbers so they line up. */ | |
281 | ||
282 | static void | |
3d6d86c6 | 283 | print_formatted (struct value *val, register int format, int size, |
fba45db2 | 284 | struct ui_file *stream) |
c906108c SS |
285 | { |
286 | struct type *type = check_typedef (VALUE_TYPE (val)); | |
287 | int len = TYPE_LENGTH (type); | |
288 | ||
289 | if (VALUE_LVAL (val) == lval_memory) | |
290 | { | |
291 | next_address = VALUE_ADDRESS (val) + len; | |
292 | next_section = VALUE_BFD_SECTION (val); | |
293 | } | |
294 | ||
295 | switch (format) | |
296 | { | |
297 | case 's': | |
298 | /* FIXME: Need to handle wchar_t's here... */ | |
299 | next_address = VALUE_ADDRESS (val) | |
2acceee2 | 300 | + val_print_string (VALUE_ADDRESS (val), -1, 1, stream); |
c906108c SS |
301 | next_section = VALUE_BFD_SECTION (val); |
302 | break; | |
303 | ||
304 | case 'i': | |
305 | /* The old comment says | |
c5aa993b JM |
306 | "Force output out, print_insn not using _filtered". |
307 | I'm not completely sure what that means, I suspect most print_insn | |
308 | now do use _filtered, so I guess it's obsolete. | |
309 | --Yes, it does filter now, and so this is obsolete. -JB */ | |
c906108c SS |
310 | |
311 | /* We often wrap here if there are long symbolic names. */ | |
312 | wrap_here (" "); | |
313 | next_address = VALUE_ADDRESS (val) | |
2acceee2 | 314 | + print_insn (VALUE_ADDRESS (val), stream); |
c906108c SS |
315 | next_section = VALUE_BFD_SECTION (val); |
316 | break; | |
317 | ||
318 | default: | |
319 | if (format == 0 | |
320 | || TYPE_CODE (type) == TYPE_CODE_ARRAY | |
321 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
322 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
323 | || TYPE_CODE (type) == TYPE_CODE_UNION) | |
c5aa993b JM |
324 | /* If format is 0, use the 'natural' format for |
325 | * that type of value. If the type is non-scalar, | |
326 | * we have to use language rules to print it as | |
327 | * a series of scalars. | |
328 | */ | |
2acceee2 | 329 | value_print (val, stream, format, Val_pretty_default); |
c906108c | 330 | else |
c5aa993b JM |
331 | /* User specified format, so don't look to the |
332 | * the type to tell us what to do. | |
333 | */ | |
c906108c | 334 | print_scalar_formatted (VALUE_CONTENTS (val), type, |
2acceee2 | 335 | format, size, stream); |
c906108c SS |
336 | } |
337 | } | |
338 | ||
339 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
340 | according to letters FORMAT and SIZE on STREAM. | |
341 | FORMAT may not be zero. Formats s and i are not supported at this level. | |
342 | ||
343 | This is how the elements of an array or structure are printed | |
344 | with a format. */ | |
345 | ||
346 | void | |
fba45db2 KB |
347 | print_scalar_formatted (char *valaddr, struct type *type, int format, int size, |
348 | struct ui_file *stream) | |
c906108c SS |
349 | { |
350 | LONGEST val_long; | |
351 | unsigned int len = TYPE_LENGTH (type); | |
352 | ||
353 | if (len > sizeof (LONGEST) | |
354 | && (format == 't' | |
355 | || format == 'c' | |
356 | || format == 'o' | |
357 | || format == 'u' | |
358 | || format == 'd' | |
359 | || format == 'x')) | |
360 | { | |
c5aa993b JM |
361 | if (!TYPE_UNSIGNED (type) |
362 | || !extract_long_unsigned_integer (valaddr, len, &val_long)) | |
c906108c SS |
363 | { |
364 | /* We can't print it normally, but we can print it in hex. | |
365 | Printing it in the wrong radix is more useful than saying | |
366 | "use /x, you dummy". */ | |
367 | /* FIXME: we could also do octal or binary if that was the | |
368 | desired format. */ | |
369 | /* FIXME: we should be using the size field to give us a | |
370 | minimum field width to print. */ | |
371 | ||
c5aa993b JM |
372 | if (format == 'o') |
373 | print_octal_chars (stream, valaddr, len); | |
374 | else if (format == 'd') | |
375 | print_decimal_chars (stream, valaddr, len); | |
376 | else if (format == 't') | |
377 | print_binary_chars (stream, valaddr, len); | |
378 | else | |
379 | /* replace with call to print_hex_chars? Looks | |
380 | like val_print_type_code_int is redoing | |
381 | work. - edie */ | |
c906108c | 382 | |
c5aa993b | 383 | val_print_type_code_int (type, valaddr, stream); |
c906108c SS |
384 | |
385 | return; | |
386 | } | |
387 | ||
388 | /* If we get here, extract_long_unsigned_integer set val_long. */ | |
389 | } | |
390 | else if (format != 'f') | |
391 | val_long = unpack_long (type, valaddr); | |
392 | ||
ef166cf4 | 393 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 FF |
394 | same, then at this point, the value's length (in target bytes) is |
395 | TARGET_ADDR_BIT/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ | |
ef166cf4 | 396 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
d0aee0c4 | 397 | len = TARGET_ADDR_BIT / TARGET_CHAR_BIT; |
ef166cf4 | 398 | |
c906108c SS |
399 | /* If we are printing it as unsigned, truncate it in case it is actually |
400 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
401 | (if shorts are 16 bits) instead of 4294967295). */ | |
402 | if (format != 'd') | |
403 | { | |
404 | if (len < sizeof (LONGEST)) | |
405 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
406 | } | |
407 | ||
408 | switch (format) | |
409 | { | |
410 | case 'x': | |
411 | if (!size) | |
412 | { | |
413 | /* no size specified, like in print. Print varying # of digits. */ | |
414 | print_longest (stream, 'x', 1, val_long); | |
415 | } | |
416 | else | |
417 | switch (size) | |
418 | { | |
419 | case 'b': | |
420 | case 'h': | |
421 | case 'w': | |
422 | case 'g': | |
423 | print_longest (stream, size, 1, val_long); | |
424 | break; | |
425 | default: | |
426 | error ("Undefined output size \"%c\".", size); | |
427 | } | |
428 | break; | |
429 | ||
430 | case 'd': | |
431 | print_longest (stream, 'd', 1, val_long); | |
432 | break; | |
433 | ||
434 | case 'u': | |
435 | print_longest (stream, 'u', 0, val_long); | |
436 | break; | |
437 | ||
438 | case 'o': | |
439 | if (val_long) | |
440 | print_longest (stream, 'o', 1, val_long); | |
441 | else | |
442 | fprintf_filtered (stream, "0"); | |
443 | break; | |
444 | ||
445 | case 'a': | |
593de6a6 | 446 | { |
593de6a6 | 447 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
593de6a6 PS |
448 | print_address (addr, stream); |
449 | } | |
c906108c SS |
450 | break; |
451 | ||
452 | case 'c': | |
9e0b60a8 JM |
453 | value_print (value_from_longest (builtin_type_true_char, val_long), |
454 | stream, 0, Val_pretty_default); | |
c906108c SS |
455 | break; |
456 | ||
457 | case 'f': | |
f4697836 | 458 | if (len == TYPE_LENGTH (builtin_type_float)) |
664cccae | 459 | type = builtin_type_float; |
f4697836 | 460 | else if (len == TYPE_LENGTH (builtin_type_double)) |
664cccae | 461 | type = builtin_type_double; |
f4697836 JB |
462 | else if (len == TYPE_LENGTH (builtin_type_long_double)) |
463 | type = builtin_type_long_double; | |
c906108c SS |
464 | print_floating (valaddr, type, stream); |
465 | break; | |
466 | ||
467 | case 0: | |
e1e9e218 | 468 | internal_error (__FILE__, __LINE__, "failed internal consistency check"); |
c906108c SS |
469 | |
470 | case 't': | |
471 | /* Binary; 't' stands for "two". */ | |
472 | { | |
c5aa993b JM |
473 | char bits[8 * (sizeof val_long) + 1]; |
474 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
475 | char *cp = bits; |
476 | int width; | |
477 | ||
c5aa993b JM |
478 | if (!size) |
479 | width = 8 * (sizeof val_long); | |
480 | else | |
481 | switch (size) | |
c906108c SS |
482 | { |
483 | case 'b': | |
484 | width = 8; | |
485 | break; | |
486 | case 'h': | |
487 | width = 16; | |
488 | break; | |
489 | case 'w': | |
490 | width = 32; | |
491 | break; | |
492 | case 'g': | |
493 | width = 64; | |
494 | break; | |
495 | default: | |
496 | error ("Undefined output size \"%c\".", size); | |
497 | } | |
498 | ||
c5aa993b JM |
499 | bits[width] = '\0'; |
500 | while (width-- > 0) | |
501 | { | |
502 | bits[width] = (val_long & 1) ? '1' : '0'; | |
503 | val_long >>= 1; | |
504 | } | |
c906108c SS |
505 | if (!size) |
506 | { | |
507 | while (*cp && *cp == '0') | |
508 | cp++; | |
509 | if (*cp == '\0') | |
510 | cp--; | |
511 | } | |
c5aa993b | 512 | strcpy (buf, local_binary_format_prefix ()); |
c906108c | 513 | strcat (buf, cp); |
c5aa993b JM |
514 | strcat (buf, local_binary_format_suffix ()); |
515 | fprintf_filtered (stream, buf); | |
c906108c SS |
516 | } |
517 | break; | |
518 | ||
519 | default: | |
520 | error ("Undefined output format \"%c\".", format); | |
521 | } | |
522 | } | |
523 | ||
524 | /* Specify default address for `x' command. | |
525 | `info lines' uses this. */ | |
526 | ||
527 | void | |
fba45db2 | 528 | set_next_address (CORE_ADDR addr) |
c906108c SS |
529 | { |
530 | next_address = addr; | |
531 | ||
532 | /* Make address available to the user as $_. */ | |
533 | set_internalvar (lookup_internalvar ("_"), | |
4478b372 JB |
534 | value_from_pointer (lookup_pointer_type (builtin_type_void), |
535 | addr)); | |
c906108c SS |
536 | } |
537 | ||
538 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
539 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
540 | Optionally also print source file and line number, if available. | |
541 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
542 | or to interpret it as a possible C++ name and convert it back to source | |
543 | form. However note that DO_DEMANGLE can be overridden by the specific | |
544 | settings of the demangle and asm_demangle variables. */ | |
545 | ||
546 | void | |
fba45db2 KB |
547 | print_address_symbolic (CORE_ADDR addr, struct ui_file *stream, int do_demangle, |
548 | char *leadin) | |
dfcd3bfb JM |
549 | { |
550 | char *name = NULL; | |
551 | char *filename = NULL; | |
552 | int unmapped = 0; | |
553 | int offset = 0; | |
554 | int line = 0; | |
555 | ||
2f9429ae AC |
556 | /* throw away both name and filename */ |
557 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); | |
558 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb JM |
559 | |
560 | if (build_address_symbolic (addr, do_demangle, &name, &offset, &filename, &line, &unmapped)) | |
2f9429ae AC |
561 | { |
562 | do_cleanups (cleanup_chain); | |
563 | return; | |
564 | } | |
dfcd3bfb JM |
565 | |
566 | fputs_filtered (leadin, stream); | |
567 | if (unmapped) | |
568 | fputs_filtered ("<*", stream); | |
569 | else | |
570 | fputs_filtered ("<", stream); | |
571 | fputs_filtered (name, stream); | |
572 | if (offset != 0) | |
573 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
574 | ||
575 | /* Append source filename and line number if desired. Give specific | |
576 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
577 | if (print_symbol_filename && filename != NULL) | |
578 | { | |
579 | if (line != -1) | |
580 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
581 | else | |
582 | fprintf_filtered (stream, " in %s", filename); | |
583 | } | |
584 | if (unmapped) | |
585 | fputs_filtered ("*>", stream); | |
586 | else | |
587 | fputs_filtered (">", stream); | |
588 | ||
589 | do_cleanups (cleanup_chain); | |
590 | } | |
591 | ||
592 | /* Given an address ADDR return all the elements needed to print the | |
593 | address in a symbolic form. NAME can be mangled or not depending | |
594 | on DO_DEMANGLE (and also on the asm_demangle global variable, | |
595 | manipulated via ''set print asm-demangle''). Return 0 in case of | |
596 | success, when all the info in the OUT paramters is valid. Return 1 | |
597 | otherwise. */ | |
598 | int | |
599 | build_address_symbolic (CORE_ADDR addr, /* IN */ | |
600 | int do_demangle, /* IN */ | |
601 | char **name, /* OUT */ | |
602 | int *offset, /* OUT */ | |
603 | char **filename, /* OUT */ | |
604 | int *line, /* OUT */ | |
605 | int *unmapped) /* OUT */ | |
c906108c SS |
606 | { |
607 | struct minimal_symbol *msymbol; | |
608 | struct symbol *symbol; | |
609 | struct symtab *symtab = 0; | |
610 | CORE_ADDR name_location = 0; | |
c906108c | 611 | asection *section = 0; |
dfcd3bfb JM |
612 | char *name_temp = ""; |
613 | ||
614 | /* Let's say it is unmapped. */ | |
615 | *unmapped = 0; | |
c906108c | 616 | |
dfcd3bfb JM |
617 | /* Determine if the address is in an overlay, and whether it is |
618 | mapped. */ | |
c906108c SS |
619 | if (overlay_debugging) |
620 | { | |
621 | section = find_pc_overlay (addr); | |
622 | if (pc_in_unmapped_range (addr, section)) | |
623 | { | |
dfcd3bfb | 624 | *unmapped = 1; |
c906108c SS |
625 | addr = overlay_mapped_address (addr, section); |
626 | } | |
627 | } | |
628 | ||
629 | /* On some targets, add in extra "flag" bits to PC for | |
630 | disassembly. This should ensure that "rounding errors" in | |
631 | symbol addresses that are masked for disassembly favour the | |
632 | the correct symbol. */ | |
633 | ||
634 | #ifdef GDB_TARGET_UNMASK_DISAS_PC | |
635 | addr = GDB_TARGET_UNMASK_DISAS_PC (addr); | |
636 | #endif | |
637 | ||
638 | /* First try to find the address in the symbol table, then | |
639 | in the minsyms. Take the closest one. */ | |
640 | ||
641 | /* This is defective in the sense that it only finds text symbols. So | |
642 | really this is kind of pointless--we should make sure that the | |
643 | minimal symbols have everything we need (by changing that we could | |
644 | save some memory, but for many debug format--ELF/DWARF or | |
645 | anything/stabs--it would be inconvenient to eliminate those minimal | |
646 | symbols anyway). */ | |
647 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
648 | symbol = find_pc_sect_function (addr, section); | |
649 | ||
650 | if (symbol) | |
651 | { | |
652 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
653 | if (do_demangle) | |
dfcd3bfb | 654 | name_temp = SYMBOL_SOURCE_NAME (symbol); |
c906108c | 655 | else |
dfcd3bfb | 656 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
657 | } |
658 | ||
659 | if (msymbol != NULL) | |
660 | { | |
661 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
662 | { | |
663 | /* The msymbol is closer to the address than the symbol; | |
664 | use the msymbol instead. */ | |
665 | symbol = 0; | |
666 | symtab = 0; | |
667 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); | |
668 | if (do_demangle) | |
dfcd3bfb | 669 | name_temp = SYMBOL_SOURCE_NAME (msymbol); |
c906108c | 670 | else |
dfcd3bfb | 671 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
672 | } |
673 | } | |
674 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 675 | return 1; |
c906108c SS |
676 | |
677 | /* On some targets, mask out extra "flag" bits from PC for handsome | |
678 | disassembly. */ | |
679 | ||
680 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
681 | name_location = GDB_TARGET_MASK_DISAS_PC (name_location); | |
682 | addr = GDB_TARGET_MASK_DISAS_PC (addr); | |
683 | #endif | |
684 | ||
685 | /* If the nearest symbol is too far away, don't print anything symbolic. */ | |
686 | ||
687 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
688 | CORE_ADDR. But when we detect unsigned wraparound in the | |
689 | CORE_ADDR math, we ignore this test and print the offset, | |
690 | because addr+max_symbolic_offset has wrapped through the end | |
691 | of the address space back to the beginning, giving bogus comparison. */ | |
692 | if (addr > name_location + max_symbolic_offset | |
693 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 694 | return 1; |
c906108c | 695 | |
dfcd3bfb JM |
696 | *offset = addr - name_location; |
697 | ||
698 | *name = xstrdup (name_temp); | |
c906108c | 699 | |
c906108c SS |
700 | if (print_symbol_filename) |
701 | { | |
702 | struct symtab_and_line sal; | |
703 | ||
704 | sal = find_pc_sect_line (addr, section, 0); | |
705 | ||
706 | if (sal.symtab) | |
dfcd3bfb JM |
707 | { |
708 | *filename = xstrdup (sal.symtab->filename); | |
709 | *line = sal.line; | |
710 | } | |
c906108c | 711 | else if (symtab && symbol && symbol->line) |
dfcd3bfb JM |
712 | { |
713 | *filename = xstrdup (symtab->filename); | |
714 | *line = symbol->line; | |
715 | } | |
c906108c | 716 | else if (symtab) |
dfcd3bfb JM |
717 | { |
718 | *filename = xstrdup (symtab->filename); | |
719 | *line = -1; | |
720 | } | |
c906108c | 721 | } |
dfcd3bfb | 722 | return 0; |
c906108c SS |
723 | } |
724 | ||
c906108c SS |
725 | /* Print address ADDR on STREAM. USE_LOCAL means the same thing as for |
726 | print_longest. */ | |
727 | void | |
fba45db2 | 728 | print_address_numeric (CORE_ADDR addr, int use_local, struct ui_file *stream) |
c906108c | 729 | { |
c0d8fd9a | 730 | /* Truncate address to the size of a target address, avoiding shifts |
e2ad119d | 731 | larger or equal than the width of a CORE_ADDR. The local |
c0d8fd9a MS |
732 | variable ADDR_BIT stops the compiler reporting a shift overflow |
733 | when it won't occur. */ | |
e2ad119d AC |
734 | /* NOTE: This assumes that the significant address information is |
735 | kept in the least significant bits of ADDR - the upper bits were | |
736 | either zero or sign extended. Should ADDRESS_TO_POINTER() or | |
737 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ | |
c0d8fd9a | 738 | |
52204a0b | 739 | int addr_bit = TARGET_ADDR_BIT; |
c0d8fd9a | 740 | |
52204a0b DT |
741 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) |
742 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
c906108c SS |
743 | print_longest (stream, 'x', use_local, (ULONGEST) addr); |
744 | } | |
745 | ||
746 | /* Print address ADDR symbolically on STREAM. | |
747 | First print it as a number. Then perhaps print | |
748 | <SYMBOL + OFFSET> after the number. */ | |
749 | ||
750 | void | |
fba45db2 | 751 | print_address (CORE_ADDR addr, struct ui_file *stream) |
c906108c SS |
752 | { |
753 | print_address_numeric (addr, 1, stream); | |
754 | print_address_symbolic (addr, stream, asm_demangle, " "); | |
755 | } | |
756 | ||
757 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
758 | controls whether to print the symbolic name "raw" or demangled. | |
759 | Global setting "addressprint" controls whether to print hex address | |
760 | or not. */ | |
761 | ||
762 | void | |
fba45db2 | 763 | print_address_demangle (CORE_ADDR addr, struct ui_file *stream, int do_demangle) |
c906108c SS |
764 | { |
765 | if (addr == 0) | |
766 | { | |
767 | fprintf_filtered (stream, "0"); | |
768 | } | |
769 | else if (addressprint) | |
770 | { | |
771 | print_address_numeric (addr, 1, stream); | |
772 | print_address_symbolic (addr, stream, do_demangle, " "); | |
773 | } | |
774 | else | |
775 | { | |
776 | print_address_symbolic (addr, stream, do_demangle, ""); | |
777 | } | |
778 | } | |
779 | \f | |
780 | ||
781 | /* These are the types that $__ will get after an examine command of one | |
782 | of these sizes. */ | |
783 | ||
784 | static struct type *examine_i_type; | |
785 | ||
786 | static struct type *examine_b_type; | |
787 | static struct type *examine_h_type; | |
788 | static struct type *examine_w_type; | |
789 | static struct type *examine_g_type; | |
790 | ||
791 | /* Examine data at address ADDR in format FMT. | |
792 | Fetch it from memory and print on gdb_stdout. */ | |
793 | ||
794 | static void | |
fba45db2 | 795 | do_examine (struct format_data fmt, CORE_ADDR addr, asection *sect) |
c906108c SS |
796 | { |
797 | register char format = 0; | |
798 | register char size; | |
799 | register int count = 1; | |
800 | struct type *val_type = NULL; | |
801 | register int i; | |
802 | register int maxelts; | |
803 | ||
804 | format = fmt.format; | |
805 | size = fmt.size; | |
806 | count = fmt.count; | |
807 | next_address = addr; | |
808 | next_section = sect; | |
809 | ||
810 | /* String or instruction format implies fetch single bytes | |
811 | regardless of the specified size. */ | |
812 | if (format == 's' || format == 'i') | |
813 | size = 'b'; | |
814 | ||
815 | if (format == 'i') | |
816 | val_type = examine_i_type; | |
817 | else if (size == 'b') | |
818 | val_type = examine_b_type; | |
819 | else if (size == 'h') | |
820 | val_type = examine_h_type; | |
821 | else if (size == 'w') | |
822 | val_type = examine_w_type; | |
823 | else if (size == 'g') | |
824 | val_type = examine_g_type; | |
825 | ||
826 | maxelts = 8; | |
827 | if (size == 'w') | |
828 | maxelts = 4; | |
829 | if (size == 'g') | |
830 | maxelts = 2; | |
831 | if (format == 's' || format == 'i') | |
832 | maxelts = 1; | |
833 | ||
834 | /* Print as many objects as specified in COUNT, at most maxelts per line, | |
835 | with the address of the next one at the start of each line. */ | |
836 | ||
837 | while (count > 0) | |
838 | { | |
839 | QUIT; | |
840 | print_address (next_address, gdb_stdout); | |
841 | printf_filtered (":"); | |
842 | for (i = maxelts; | |
843 | i > 0 && count > 0; | |
844 | i--, count--) | |
845 | { | |
846 | printf_filtered ("\t"); | |
847 | /* Note that print_formatted sets next_address for the next | |
848 | object. */ | |
849 | last_examine_address = next_address; | |
850 | ||
851 | if (last_examine_value) | |
852 | value_free (last_examine_value); | |
853 | ||
854 | /* The value to be displayed is not fetched greedily. | |
c5aa993b JM |
855 | Instead, to avoid the posibility of a fetched value not |
856 | being used, its retreval is delayed until the print code | |
857 | uses it. When examining an instruction stream, the | |
858 | disassembler will perform its own memory fetch using just | |
859 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
860 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
861 | is left with the byte sequence from the last complete | |
862 | instruction fetched from memory? */ | |
c906108c SS |
863 | last_examine_value = value_at_lazy (val_type, next_address, sect); |
864 | ||
865 | if (last_examine_value) | |
866 | release_value (last_examine_value); | |
867 | ||
2acceee2 | 868 | print_formatted (last_examine_value, format, size, gdb_stdout); |
c906108c SS |
869 | } |
870 | printf_filtered ("\n"); | |
871 | gdb_flush (gdb_stdout); | |
872 | } | |
873 | } | |
874 | \f | |
875 | static void | |
fba45db2 | 876 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
877 | { |
878 | if (fmt.size != 0) | |
879 | error ("Size letters are meaningless in \"%s\" command.", cmdname); | |
880 | if (fmt.count != 1) | |
881 | error ("Item count other than 1 is meaningless in \"%s\" command.", | |
882 | cmdname); | |
883 | if (fmt.format == 'i' || fmt.format == 's') | |
884 | error ("Format letter \"%c\" is meaningless in \"%s\" command.", | |
885 | fmt.format, cmdname); | |
886 | } | |
887 | ||
888 | /* Evaluate string EXP as an expression in the current language and | |
c5aa993b JM |
889 | print the resulting value. EXP may contain a format specifier as the |
890 | first argument ("/x myvar" for example, to print myvar in hex). | |
891 | */ | |
c906108c SS |
892 | |
893 | static void | |
fba45db2 | 894 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
895 | { |
896 | struct expression *expr; | |
897 | register struct cleanup *old_chain = 0; | |
898 | register char format = 0; | |
3d6d86c6 | 899 | struct value *val; |
c906108c SS |
900 | struct format_data fmt; |
901 | int cleanup = 0; | |
902 | ||
903 | /* Pass inspect flag to the rest of the print routines in a global (sigh). */ | |
904 | inspect_it = inspect; | |
905 | ||
906 | if (exp && *exp == '/') | |
907 | { | |
908 | exp++; | |
909 | fmt = decode_format (&exp, last_format, 0); | |
910 | validate_format (fmt, "print"); | |
911 | last_format = format = fmt.format; | |
912 | } | |
913 | else | |
914 | { | |
915 | fmt.count = 1; | |
916 | fmt.format = 0; | |
917 | fmt.size = 0; | |
918 | } | |
919 | ||
920 | if (exp && *exp) | |
921 | { | |
c906108c SS |
922 | struct type *type; |
923 | expr = parse_expression (exp); | |
c13c43fd | 924 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
925 | cleanup = 1; |
926 | val = evaluate_expression (expr); | |
c906108c SS |
927 | } |
928 | else | |
929 | val = access_value_history (0); | |
930 | ||
931 | if (voidprint || (val && VALUE_TYPE (val) && | |
c5aa993b | 932 | TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_VOID)) |
c906108c SS |
933 | { |
934 | int histindex = record_latest_value (val); | |
935 | ||
936 | if (histindex >= 0) | |
937 | annotate_value_history_begin (histindex, VALUE_TYPE (val)); | |
938 | else | |
939 | annotate_value_begin (VALUE_TYPE (val)); | |
940 | ||
941 | if (inspect) | |
942 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", exp, histindex); | |
c5aa993b JM |
943 | else if (histindex >= 0) |
944 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
945 | |
946 | if (histindex >= 0) | |
947 | annotate_value_history_value (); | |
948 | ||
2acceee2 | 949 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
950 | printf_filtered ("\n"); |
951 | ||
952 | if (histindex >= 0) | |
953 | annotate_value_history_end (); | |
954 | else | |
955 | annotate_value_end (); | |
956 | ||
957 | if (inspect) | |
c5aa993b | 958 | printf_unfiltered ("\") )\030"); |
c906108c SS |
959 | } |
960 | ||
961 | if (cleanup) | |
962 | do_cleanups (old_chain); | |
c5aa993b | 963 | inspect_it = 0; /* Reset print routines to normal */ |
c906108c SS |
964 | } |
965 | ||
966 | /* ARGSUSED */ | |
967 | static void | |
fba45db2 | 968 | print_command (char *exp, int from_tty) |
c906108c SS |
969 | { |
970 | print_command_1 (exp, 0, 1); | |
971 | } | |
972 | ||
973 | /* Same as print, except in epoch, it gets its own window */ | |
974 | /* ARGSUSED */ | |
975 | static void | |
fba45db2 | 976 | inspect_command (char *exp, int from_tty) |
c906108c SS |
977 | { |
978 | extern int epoch_interface; | |
979 | ||
980 | print_command_1 (exp, epoch_interface, 1); | |
981 | } | |
982 | ||
983 | /* Same as print, except it doesn't print void results. */ | |
984 | /* ARGSUSED */ | |
985 | static void | |
fba45db2 | 986 | call_command (char *exp, int from_tty) |
c906108c SS |
987 | { |
988 | print_command_1 (exp, 0, 0); | |
989 | } | |
990 | ||
991 | /* ARGSUSED */ | |
992 | void | |
fba45db2 | 993 | output_command (char *exp, int from_tty) |
c906108c SS |
994 | { |
995 | struct expression *expr; | |
996 | register struct cleanup *old_chain; | |
997 | register char format = 0; | |
3d6d86c6 | 998 | struct value *val; |
c906108c SS |
999 | struct format_data fmt; |
1000 | ||
1001 | if (exp && *exp == '/') | |
1002 | { | |
1003 | exp++; | |
1004 | fmt = decode_format (&exp, 0, 0); | |
1005 | validate_format (fmt, "output"); | |
1006 | format = fmt.format; | |
1007 | } | |
1008 | ||
1009 | expr = parse_expression (exp); | |
c13c43fd | 1010 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1011 | |
1012 | val = evaluate_expression (expr); | |
1013 | ||
1014 | annotate_value_begin (VALUE_TYPE (val)); | |
1015 | ||
2acceee2 | 1016 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
1017 | |
1018 | annotate_value_end (); | |
1019 | ||
2acceee2 JM |
1020 | wrap_here (""); |
1021 | gdb_flush (gdb_stdout); | |
1022 | ||
c906108c SS |
1023 | do_cleanups (old_chain); |
1024 | } | |
1025 | ||
1026 | /* ARGSUSED */ | |
1027 | static void | |
fba45db2 | 1028 | set_command (char *exp, int from_tty) |
c906108c SS |
1029 | { |
1030 | struct expression *expr = parse_expression (exp); | |
c13c43fd PDM |
1031 | register struct cleanup *old_chain = |
1032 | make_cleanup (free_current_contents, &expr); | |
c906108c SS |
1033 | evaluate_expression (expr); |
1034 | do_cleanups (old_chain); | |
1035 | } | |
1036 | ||
1037 | /* ARGSUSED */ | |
1038 | static void | |
fba45db2 | 1039 | sym_info (char *arg, int from_tty) |
c906108c SS |
1040 | { |
1041 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1042 | struct objfile *objfile; |
1043 | struct obj_section *osect; | |
1044 | asection *sect; | |
1045 | CORE_ADDR addr, sect_addr; | |
1046 | int matches = 0; | |
1047 | unsigned int offset; | |
c906108c SS |
1048 | |
1049 | if (!arg) | |
1050 | error_no_arg ("address"); | |
1051 | ||
1052 | addr = parse_and_eval_address (arg); | |
1053 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b JM |
1054 | { |
1055 | sect = osect->the_bfd_section; | |
1056 | sect_addr = overlay_mapped_address (addr, sect); | |
c906108c | 1057 | |
c5aa993b JM |
1058 | if (osect->addr <= sect_addr && sect_addr < osect->endaddr && |
1059 | (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, sect))) | |
1060 | { | |
1061 | matches = 1; | |
1062 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
1063 | if (offset) | |
1064 | printf_filtered ("%s + %u in ", | |
1065 | SYMBOL_SOURCE_NAME (msymbol), offset); | |
1066 | else | |
1067 | printf_filtered ("%s in ", | |
1068 | SYMBOL_SOURCE_NAME (msymbol)); | |
1069 | if (pc_in_unmapped_range (addr, sect)) | |
1070 | printf_filtered ("load address range of "); | |
1071 | if (section_is_overlay (sect)) | |
1072 | printf_filtered ("%s overlay ", | |
1073 | section_is_mapped (sect) ? "mapped" : "unmapped"); | |
1074 | printf_filtered ("section %s", sect->name); | |
1075 | printf_filtered ("\n"); | |
1076 | } | |
1077 | } | |
c906108c SS |
1078 | if (matches == 0) |
1079 | printf_filtered ("No symbol matches %s.\n", arg); | |
1080 | } | |
1081 | ||
1082 | /* ARGSUSED */ | |
1083 | static void | |
fba45db2 | 1084 | address_info (char *exp, int from_tty) |
c906108c SS |
1085 | { |
1086 | register struct symbol *sym; | |
1087 | register struct minimal_symbol *msymbol; | |
1088 | register long val; | |
1089 | register long basereg; | |
1090 | asection *section; | |
1091 | CORE_ADDR load_addr; | |
1092 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1093 | if exp is a field of `this'. */ | |
1094 | ||
1095 | if (exp == 0) | |
1096 | error ("Argument required."); | |
1097 | ||
ae767bfb | 1098 | sym = lookup_symbol (exp, get_selected_block (0), VAR_NAMESPACE, |
c5aa993b | 1099 | &is_a_field_of_this, (struct symtab **) NULL); |
c906108c SS |
1100 | if (sym == NULL) |
1101 | { | |
1102 | if (is_a_field_of_this) | |
1103 | { | |
1104 | printf_filtered ("Symbol \""); | |
1105 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1106 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1107 | printf_filtered ("\" is a field of the local class variable "); |
1108 | if (current_language->la_language == language_objc) | |
1109 | printf_filtered ("'self'\n"); /* ObjC equivalent of "this" */ | |
1110 | else | |
1111 | printf_filtered ("'this'\n"); | |
c906108c SS |
1112 | return; |
1113 | } | |
1114 | ||
1115 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1116 | ||
1117 | if (msymbol != NULL) | |
1118 | { | |
1119 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1120 | ||
1121 | printf_filtered ("Symbol \""); | |
1122 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1123 | current_language->la_language, DMGL_ANSI); | |
1124 | printf_filtered ("\" is at "); | |
1125 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1126 | printf_filtered (" in a file compiled without debugging"); | |
1127 | section = SYMBOL_BFD_SECTION (msymbol); | |
1128 | if (section_is_overlay (section)) | |
1129 | { | |
1130 | load_addr = overlay_unmapped_address (load_addr, section); | |
1131 | printf_filtered (",\n -- loaded at "); | |
1132 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1133 | printf_filtered (" in overlay section %s", section->name); | |
1134 | } | |
1135 | printf_filtered (".\n"); | |
1136 | } | |
1137 | else | |
1138 | error ("No symbol \"%s\" in current context.", exp); | |
1139 | return; | |
1140 | } | |
1141 | ||
1142 | printf_filtered ("Symbol \""); | |
1143 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_NAME (sym), | |
1144 | current_language->la_language, DMGL_ANSI); | |
1145 | printf_filtered ("\" is "); | |
c5aa993b | 1146 | val = SYMBOL_VALUE (sym); |
c906108c SS |
1147 | basereg = SYMBOL_BASEREG (sym); |
1148 | section = SYMBOL_BFD_SECTION (sym); | |
1149 | ||
1150 | switch (SYMBOL_CLASS (sym)) | |
1151 | { | |
1152 | case LOC_CONST: | |
1153 | case LOC_CONST_BYTES: | |
1154 | printf_filtered ("constant"); | |
1155 | break; | |
1156 | ||
1157 | case LOC_LABEL: | |
1158 | printf_filtered ("a label at address "); | |
c5aa993b | 1159 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1160 | 1, gdb_stdout); |
1161 | if (section_is_overlay (section)) | |
1162 | { | |
1163 | load_addr = overlay_unmapped_address (load_addr, section); | |
1164 | printf_filtered (",\n -- loaded at "); | |
1165 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1166 | printf_filtered (" in overlay section %s", section->name); | |
1167 | } | |
1168 | break; | |
1169 | ||
1170 | case LOC_REGISTER: | |
1171 | printf_filtered ("a variable in register %s", REGISTER_NAME (val)); | |
1172 | break; | |
1173 | ||
1174 | case LOC_STATIC: | |
1175 | printf_filtered ("static storage at address "); | |
c5aa993b | 1176 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1177 | 1, gdb_stdout); |
1178 | if (section_is_overlay (section)) | |
1179 | { | |
1180 | load_addr = overlay_unmapped_address (load_addr, section); | |
1181 | printf_filtered (",\n -- loaded at "); | |
1182 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1183 | printf_filtered (" in overlay section %s", section->name); | |
1184 | } | |
1185 | break; | |
1186 | ||
1187 | case LOC_INDIRECT: | |
1188 | printf_filtered ("external global (indirect addressing), at address *("); | |
1189 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), | |
1190 | 1, gdb_stdout); | |
1191 | printf_filtered (")"); | |
1192 | if (section_is_overlay (section)) | |
1193 | { | |
1194 | load_addr = overlay_unmapped_address (load_addr, section); | |
1195 | printf_filtered (",\n -- loaded at "); | |
1196 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1197 | printf_filtered (" in overlay section %s", section->name); | |
1198 | } | |
1199 | break; | |
1200 | ||
1201 | case LOC_REGPARM: | |
1202 | printf_filtered ("an argument in register %s", REGISTER_NAME (val)); | |
1203 | break; | |
1204 | ||
1205 | case LOC_REGPARM_ADDR: | |
1206 | printf_filtered ("address of an argument in register %s", REGISTER_NAME (val)); | |
1207 | break; | |
1208 | ||
1209 | case LOC_ARG: | |
1210 | printf_filtered ("an argument at offset %ld", val); | |
1211 | break; | |
1212 | ||
1213 | case LOC_LOCAL_ARG: | |
1214 | printf_filtered ("an argument at frame offset %ld", val); | |
1215 | break; | |
1216 | ||
1217 | case LOC_LOCAL: | |
1218 | printf_filtered ("a local variable at frame offset %ld", val); | |
1219 | break; | |
1220 | ||
1221 | case LOC_REF_ARG: | |
1222 | printf_filtered ("a reference argument at offset %ld", val); | |
1223 | break; | |
1224 | ||
1225 | case LOC_BASEREG: | |
1226 | printf_filtered ("a variable at offset %ld from register %s", | |
c5aa993b | 1227 | val, REGISTER_NAME (basereg)); |
c906108c SS |
1228 | break; |
1229 | ||
1230 | case LOC_BASEREG_ARG: | |
1231 | printf_filtered ("an argument at offset %ld from register %s", | |
c5aa993b | 1232 | val, REGISTER_NAME (basereg)); |
c906108c SS |
1233 | break; |
1234 | ||
1235 | case LOC_TYPEDEF: | |
1236 | printf_filtered ("a typedef"); | |
1237 | break; | |
1238 | ||
1239 | case LOC_BLOCK: | |
1240 | printf_filtered ("a function at address "); | |
1241 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
1242 | print_address_numeric | |
c5aa993b | 1243 | (load_addr = GDB_TARGET_MASK_DISAS_PC (BLOCK_START (SYMBOL_BLOCK_VALUE (sym))), |
c906108c SS |
1244 | 1, gdb_stdout); |
1245 | #else | |
c5aa993b | 1246 | print_address_numeric (load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), |
c906108c SS |
1247 | 1, gdb_stdout); |
1248 | #endif | |
1249 | if (section_is_overlay (section)) | |
1250 | { | |
1251 | load_addr = overlay_unmapped_address (load_addr, section); | |
1252 | printf_filtered (",\n -- loaded at "); | |
1253 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1254 | printf_filtered (" in overlay section %s", section->name); | |
1255 | } | |
1256 | break; | |
1257 | ||
1258 | case LOC_UNRESOLVED: | |
1259 | { | |
1260 | struct minimal_symbol *msym; | |
1261 | ||
1262 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); | |
1263 | if (msym == NULL) | |
1264 | printf_filtered ("unresolved"); | |
1265 | else | |
1266 | { | |
1267 | section = SYMBOL_BFD_SECTION (msym); | |
1268 | printf_filtered ("static storage at address "); | |
c5aa993b | 1269 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (msym), |
c906108c SS |
1270 | 1, gdb_stdout); |
1271 | if (section_is_overlay (section)) | |
1272 | { | |
1273 | load_addr = overlay_unmapped_address (load_addr, section); | |
1274 | printf_filtered (",\n -- loaded at "); | |
1275 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1276 | printf_filtered (" in overlay section %s", section->name); | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | break; | |
1281 | ||
1282 | case LOC_THREAD_LOCAL_STATIC: | |
1283 | printf_filtered ( | |
c5aa993b JM |
1284 | "a thread-local variable at offset %ld from the thread base register %s", |
1285 | val, REGISTER_NAME (basereg)); | |
c906108c SS |
1286 | break; |
1287 | ||
1288 | case LOC_OPTIMIZED_OUT: | |
1289 | printf_filtered ("optimized out"); | |
1290 | break; | |
c5aa993b | 1291 | |
c906108c SS |
1292 | default: |
1293 | printf_filtered ("of unknown (botched) type"); | |
1294 | break; | |
1295 | } | |
1296 | printf_filtered (".\n"); | |
1297 | } | |
1298 | \f | |
1299 | void | |
fba45db2 | 1300 | x_command (char *exp, int from_tty) |
c906108c SS |
1301 | { |
1302 | struct expression *expr; | |
1303 | struct format_data fmt; | |
1304 | struct cleanup *old_chain; | |
1305 | struct value *val; | |
1306 | ||
1307 | fmt.format = last_format; | |
1308 | fmt.size = last_size; | |
1309 | fmt.count = 1; | |
1310 | ||
1311 | if (exp && *exp == '/') | |
1312 | { | |
1313 | exp++; | |
1314 | fmt = decode_format (&exp, last_format, last_size); | |
1315 | } | |
1316 | ||
1317 | /* If we have an expression, evaluate it and use it as the address. */ | |
1318 | ||
1319 | if (exp != 0 && *exp != 0) | |
1320 | { | |
1321 | expr = parse_expression (exp); | |
1322 | /* Cause expression not to be there any more | |
c5aa993b JM |
1323 | if this command is repeated with Newline. |
1324 | But don't clobber a user-defined command's definition. */ | |
c906108c SS |
1325 | if (from_tty) |
1326 | *exp = 0; | |
c13c43fd | 1327 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1328 | val = evaluate_expression (expr); |
1329 | if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_REF) | |
1330 | val = value_ind (val); | |
1331 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1332 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a MS |
1333 | if (/* last_format == 'i' && */ |
1334 | TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FUNC | |
c5aa993b | 1335 | && VALUE_LVAL (val) == lval_memory) |
c906108c SS |
1336 | next_address = VALUE_ADDRESS (val); |
1337 | else | |
1aa20aa8 | 1338 | next_address = value_as_address (val); |
c906108c SS |
1339 | if (VALUE_BFD_SECTION (val)) |
1340 | next_section = VALUE_BFD_SECTION (val); | |
1341 | do_cleanups (old_chain); | |
1342 | } | |
1343 | ||
1344 | do_examine (fmt, next_address, next_section); | |
1345 | ||
1346 | /* If the examine succeeds, we remember its size and format for next time. */ | |
1347 | last_size = fmt.size; | |
1348 | last_format = fmt.format; | |
1349 | ||
1350 | /* Set a couple of internal variables if appropriate. */ | |
1351 | if (last_examine_value) | |
1352 | { | |
1353 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1354 | the correct pointer type. */ |
4478b372 JB |
1355 | struct type *pointer_type |
1356 | = lookup_pointer_type (VALUE_TYPE (last_examine_value)); | |
c906108c | 1357 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1358 | value_from_pointer (pointer_type, |
1359 | last_examine_address)); | |
c5aa993b JM |
1360 | |
1361 | /* Make contents of last address examined available to the user as $__. */ | |
c906108c SS |
1362 | /* If the last value has not been fetched from memory then don't |
1363 | fetch it now - instead mark it by voiding the $__ variable. */ | |
1364 | if (VALUE_LAZY (last_examine_value)) | |
1365 | set_internalvar (lookup_internalvar ("__"), | |
1366 | allocate_value (builtin_type_void)); | |
1367 | else | |
1368 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1369 | } | |
1370 | } | |
c906108c | 1371 | \f |
c5aa993b | 1372 | |
c906108c SS |
1373 | /* Add an expression to the auto-display chain. |
1374 | Specify the expression. */ | |
1375 | ||
1376 | static void | |
fba45db2 | 1377 | display_command (char *exp, int from_tty) |
c906108c SS |
1378 | { |
1379 | struct format_data fmt; | |
1380 | register struct expression *expr; | |
1381 | register struct display *new; | |
1382 | int display_it = 1; | |
1383 | ||
1384 | #if defined(TUI) | |
1385 | if (tui_version && *exp == '$') | |
5ecb1806 | 1386 | display_it = (tui_set_layout (exp) == TUI_FAILURE); |
c906108c SS |
1387 | #endif |
1388 | ||
1389 | if (display_it) | |
1390 | { | |
1391 | if (exp == 0) | |
1392 | { | |
1393 | do_displays (); | |
1394 | return; | |
1395 | } | |
1396 | ||
1397 | if (*exp == '/') | |
1398 | { | |
1399 | exp++; | |
1400 | fmt = decode_format (&exp, 0, 0); | |
1401 | if (fmt.size && fmt.format == 0) | |
1402 | fmt.format = 'x'; | |
1403 | if (fmt.format == 'i' || fmt.format == 's') | |
1404 | fmt.size = 'b'; | |
1405 | } | |
1406 | else | |
1407 | { | |
1408 | fmt.format = 0; | |
1409 | fmt.size = 0; | |
1410 | fmt.count = 0; | |
1411 | } | |
1412 | ||
1413 | innermost_block = 0; | |
1414 | expr = parse_expression (exp); | |
1415 | ||
1416 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1417 | ||
1418 | new->exp = expr; | |
1419 | new->block = innermost_block; | |
1420 | new->next = display_chain; | |
1421 | new->number = ++display_number; | |
1422 | new->format = fmt; | |
b5de0fa7 | 1423 | new->enabled_p = 1; |
c906108c SS |
1424 | display_chain = new; |
1425 | ||
1426 | if (from_tty && target_has_execution) | |
1427 | do_one_display (new); | |
1428 | ||
1429 | dont_repeat (); | |
1430 | } | |
1431 | } | |
1432 | ||
1433 | static void | |
fba45db2 | 1434 | free_display (struct display *d) |
c906108c | 1435 | { |
b8c9b27d KB |
1436 | xfree (d->exp); |
1437 | xfree (d); | |
c906108c SS |
1438 | } |
1439 | ||
1440 | /* Clear out the display_chain. | |
1441 | Done when new symtabs are loaded, since this invalidates | |
1442 | the types stored in many expressions. */ | |
1443 | ||
1444 | void | |
fba45db2 | 1445 | clear_displays (void) |
c906108c SS |
1446 | { |
1447 | register struct display *d; | |
1448 | ||
1449 | while ((d = display_chain) != NULL) | |
1450 | { | |
b8c9b27d | 1451 | xfree (d->exp); |
c906108c | 1452 | display_chain = d->next; |
b8c9b27d | 1453 | xfree (d); |
c906108c SS |
1454 | } |
1455 | } | |
1456 | ||
1457 | /* Delete the auto-display number NUM. */ | |
1458 | ||
1459 | static void | |
fba45db2 | 1460 | delete_display (int num) |
c906108c SS |
1461 | { |
1462 | register struct display *d1, *d; | |
1463 | ||
1464 | if (!display_chain) | |
1465 | error ("No display number %d.", num); | |
1466 | ||
1467 | if (display_chain->number == num) | |
1468 | { | |
1469 | d1 = display_chain; | |
1470 | display_chain = d1->next; | |
1471 | free_display (d1); | |
1472 | } | |
1473 | else | |
c5aa993b | 1474 | for (d = display_chain;; d = d->next) |
c906108c SS |
1475 | { |
1476 | if (d->next == 0) | |
1477 | error ("No display number %d.", num); | |
1478 | if (d->next->number == num) | |
1479 | { | |
1480 | d1 = d->next; | |
1481 | d->next = d1->next; | |
1482 | free_display (d1); | |
1483 | break; | |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | /* Delete some values from the auto-display chain. | |
1489 | Specify the element numbers. */ | |
1490 | ||
1491 | static void | |
fba45db2 | 1492 | undisplay_command (char *args, int from_tty) |
c906108c SS |
1493 | { |
1494 | register char *p = args; | |
1495 | register char *p1; | |
1496 | register int num; | |
1497 | ||
1498 | if (args == 0) | |
1499 | { | |
1500 | if (query ("Delete all auto-display expressions? ")) | |
1501 | clear_displays (); | |
1502 | dont_repeat (); | |
1503 | return; | |
1504 | } | |
1505 | ||
1506 | while (*p) | |
1507 | { | |
1508 | p1 = p; | |
c5aa993b JM |
1509 | while (*p1 >= '0' && *p1 <= '9') |
1510 | p1++; | |
c906108c SS |
1511 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
1512 | error ("Arguments must be display numbers."); | |
1513 | ||
1514 | num = atoi (p); | |
1515 | ||
1516 | delete_display (num); | |
1517 | ||
1518 | p = p1; | |
c5aa993b JM |
1519 | while (*p == ' ' || *p == '\t') |
1520 | p++; | |
c906108c SS |
1521 | } |
1522 | dont_repeat (); | |
1523 | } | |
1524 | ||
1525 | /* Display a single auto-display. | |
1526 | Do nothing if the display cannot be printed in the current context, | |
1527 | or if the display is disabled. */ | |
1528 | ||
1529 | static void | |
fba45db2 | 1530 | do_one_display (struct display *d) |
c906108c SS |
1531 | { |
1532 | int within_current_scope; | |
1533 | ||
b5de0fa7 | 1534 | if (d->enabled_p == 0) |
c906108c SS |
1535 | return; |
1536 | ||
1537 | if (d->block) | |
ae767bfb | 1538 | within_current_scope = contained_in (get_selected_block (0), d->block); |
c906108c SS |
1539 | else |
1540 | within_current_scope = 1; | |
1541 | if (!within_current_scope) | |
1542 | return; | |
1543 | ||
1544 | current_display_number = d->number; | |
1545 | ||
1546 | annotate_display_begin (); | |
1547 | printf_filtered ("%d", d->number); | |
1548 | annotate_display_number_end (); | |
1549 | printf_filtered (": "); | |
1550 | if (d->format.size) | |
1551 | { | |
1552 | CORE_ADDR addr; | |
3d6d86c6 | 1553 | struct value *val; |
c906108c SS |
1554 | |
1555 | annotate_display_format (); | |
1556 | ||
1557 | printf_filtered ("x/"); | |
1558 | if (d->format.count != 1) | |
1559 | printf_filtered ("%d", d->format.count); | |
1560 | printf_filtered ("%c", d->format.format); | |
1561 | if (d->format.format != 'i' && d->format.format != 's') | |
1562 | printf_filtered ("%c", d->format.size); | |
1563 | printf_filtered (" "); | |
1564 | ||
1565 | annotate_display_expression (); | |
1566 | ||
1567 | print_expression (d->exp, gdb_stdout); | |
1568 | annotate_display_expression_end (); | |
1569 | ||
1570 | if (d->format.count != 1) | |
1571 | printf_filtered ("\n"); | |
1572 | else | |
1573 | printf_filtered (" "); | |
c5aa993b | 1574 | |
c906108c | 1575 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1576 | addr = value_as_address (val); |
c906108c SS |
1577 | if (d->format.format == 'i') |
1578 | addr = ADDR_BITS_REMOVE (addr); | |
1579 | ||
1580 | annotate_display_value (); | |
1581 | ||
1582 | do_examine (d->format, addr, VALUE_BFD_SECTION (val)); | |
1583 | } | |
1584 | else | |
1585 | { | |
1586 | annotate_display_format (); | |
1587 | ||
1588 | if (d->format.format) | |
1589 | printf_filtered ("/%c ", d->format.format); | |
1590 | ||
1591 | annotate_display_expression (); | |
1592 | ||
1593 | print_expression (d->exp, gdb_stdout); | |
1594 | annotate_display_expression_end (); | |
1595 | ||
1596 | printf_filtered (" = "); | |
1597 | ||
1598 | annotate_display_expression (); | |
1599 | ||
1600 | print_formatted (evaluate_expression (d->exp), | |
2acceee2 | 1601 | d->format.format, d->format.size, gdb_stdout); |
c906108c SS |
1602 | printf_filtered ("\n"); |
1603 | } | |
1604 | ||
1605 | annotate_display_end (); | |
1606 | ||
1607 | gdb_flush (gdb_stdout); | |
1608 | current_display_number = -1; | |
1609 | } | |
1610 | ||
1611 | /* Display all of the values on the auto-display chain which can be | |
1612 | evaluated in the current scope. */ | |
1613 | ||
1614 | void | |
fba45db2 | 1615 | do_displays (void) |
c906108c SS |
1616 | { |
1617 | register struct display *d; | |
1618 | ||
1619 | for (d = display_chain; d; d = d->next) | |
1620 | do_one_display (d); | |
1621 | } | |
1622 | ||
1623 | /* Delete the auto-display which we were in the process of displaying. | |
1624 | This is done when there is an error or a signal. */ | |
1625 | ||
1626 | void | |
fba45db2 | 1627 | disable_display (int num) |
c906108c SS |
1628 | { |
1629 | register struct display *d; | |
1630 | ||
1631 | for (d = display_chain; d; d = d->next) | |
1632 | if (d->number == num) | |
1633 | { | |
b5de0fa7 | 1634 | d->enabled_p = 0; |
c906108c SS |
1635 | return; |
1636 | } | |
1637 | printf_unfiltered ("No display number %d.\n", num); | |
1638 | } | |
c5aa993b | 1639 | |
c906108c | 1640 | void |
fba45db2 | 1641 | disable_current_display (void) |
c906108c SS |
1642 | { |
1643 | if (current_display_number >= 0) | |
1644 | { | |
1645 | disable_display (current_display_number); | |
1646 | fprintf_unfiltered (gdb_stderr, "Disabling display %d to avoid infinite recursion.\n", | |
c5aa993b | 1647 | current_display_number); |
c906108c SS |
1648 | } |
1649 | current_display_number = -1; | |
1650 | } | |
1651 | ||
1652 | static void | |
fba45db2 | 1653 | display_info (char *ignore, int from_tty) |
c906108c SS |
1654 | { |
1655 | register struct display *d; | |
1656 | ||
1657 | if (!display_chain) | |
1658 | printf_unfiltered ("There are no auto-display expressions now.\n"); | |
1659 | else | |
c5aa993b | 1660 | printf_filtered ("Auto-display expressions now in effect:\n\ |
c906108c SS |
1661 | Num Enb Expression\n"); |
1662 | ||
1663 | for (d = display_chain; d; d = d->next) | |
1664 | { | |
b5de0fa7 | 1665 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1666 | if (d->format.size) |
1667 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1668 | d->format.format); |
c906108c SS |
1669 | else if (d->format.format) |
1670 | printf_filtered ("/%c ", d->format.format); | |
1671 | print_expression (d->exp, gdb_stdout); | |
ae767bfb | 1672 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
c906108c SS |
1673 | printf_filtered (" (cannot be evaluated in the current context)"); |
1674 | printf_filtered ("\n"); | |
1675 | gdb_flush (gdb_stdout); | |
1676 | } | |
1677 | } | |
1678 | ||
1679 | static void | |
fba45db2 | 1680 | enable_display (char *args, int from_tty) |
c906108c SS |
1681 | { |
1682 | register char *p = args; | |
1683 | register char *p1; | |
1684 | register int num; | |
1685 | register struct display *d; | |
1686 | ||
1687 | if (p == 0) | |
1688 | { | |
1689 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1690 | d->enabled_p = 1; |
c906108c SS |
1691 | } |
1692 | else | |
1693 | while (*p) | |
1694 | { | |
1695 | p1 = p; | |
1696 | while (*p1 >= '0' && *p1 <= '9') | |
1697 | p1++; | |
1698 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1699 | error ("Arguments must be display numbers."); | |
c5aa993b | 1700 | |
c906108c | 1701 | num = atoi (p); |
c5aa993b | 1702 | |
c906108c SS |
1703 | for (d = display_chain; d; d = d->next) |
1704 | if (d->number == num) | |
1705 | { | |
b5de0fa7 | 1706 | d->enabled_p = 1; |
c906108c SS |
1707 | goto win; |
1708 | } | |
1709 | printf_unfiltered ("No display number %d.\n", num); | |
1710 | win: | |
1711 | p = p1; | |
1712 | while (*p == ' ' || *p == '\t') | |
1713 | p++; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | /* ARGSUSED */ | |
1718 | static void | |
fba45db2 | 1719 | disable_display_command (char *args, int from_tty) |
c906108c SS |
1720 | { |
1721 | register char *p = args; | |
1722 | register char *p1; | |
1723 | register struct display *d; | |
1724 | ||
1725 | if (p == 0) | |
1726 | { | |
1727 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1728 | d->enabled_p = 0; |
c906108c SS |
1729 | } |
1730 | else | |
1731 | while (*p) | |
1732 | { | |
1733 | p1 = p; | |
1734 | while (*p1 >= '0' && *p1 <= '9') | |
1735 | p1++; | |
1736 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1737 | error ("Arguments must be display numbers."); | |
c5aa993b | 1738 | |
c906108c SS |
1739 | disable_display (atoi (p)); |
1740 | ||
1741 | p = p1; | |
1742 | while (*p == ' ' || *p == '\t') | |
1743 | p++; | |
1744 | } | |
1745 | } | |
c906108c | 1746 | \f |
c5aa993b | 1747 | |
c906108c SS |
1748 | /* Print the value in stack frame FRAME of a variable |
1749 | specified by a struct symbol. */ | |
1750 | ||
1751 | void | |
fba45db2 KB |
1752 | print_variable_value (struct symbol *var, struct frame_info *frame, |
1753 | struct ui_file *stream) | |
c906108c | 1754 | { |
3d6d86c6 | 1755 | struct value *val = read_var_value (var, frame); |
c906108c SS |
1756 | |
1757 | value_print (val, stream, 0, Val_pretty_default); | |
1758 | } | |
1759 | ||
1760 | /* Print the arguments of a stack frame, given the function FUNC | |
1761 | running in that frame (as a symbol), the info on the frame, | |
1762 | and the number of args according to the stack frame (or -1 if unknown). */ | |
1763 | ||
1764 | /* References here and elsewhere to "number of args according to the | |
1765 | stack frame" appear in all cases to refer to "number of ints of args | |
1766 | according to the stack frame". At least for VAX, i386, isi. */ | |
1767 | ||
1768 | void | |
fba45db2 KB |
1769 | print_frame_args (struct symbol *func, struct frame_info *fi, int num, |
1770 | struct ui_file *stream) | |
c906108c SS |
1771 | { |
1772 | struct block *b = NULL; | |
c906108c SS |
1773 | int first = 1; |
1774 | register int i; | |
1775 | register struct symbol *sym; | |
3d6d86c6 | 1776 | struct value *val; |
c906108c SS |
1777 | /* Offset of next stack argument beyond the one we have seen that is |
1778 | at the highest offset. | |
1779 | -1 if we haven't come to a stack argument yet. */ | |
1780 | long highest_offset = -1; | |
1781 | int arg_size; | |
1782 | /* Number of ints of arguments that we have printed so far. */ | |
1783 | int args_printed = 0; | |
d493eb33 | 1784 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
1785 | struct ui_stream *stb; |
1786 | ||
1787 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 1788 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
c906108c SS |
1789 | |
1790 | if (func) | |
1791 | { | |
1792 | b = SYMBOL_BLOCK_VALUE (func); | |
261397f8 DJ |
1793 | /* Function blocks are order sensitive, and thus should not be |
1794 | hashed. */ | |
1795 | gdb_assert (BLOCK_HASHTABLE (b) == 0); | |
1796 | ||
e88c90f2 | 1797 | ALL_BLOCK_SYMBOLS (b, i, sym) |
55159471 DJ |
1798 | { |
1799 | QUIT; | |
c906108c | 1800 | |
55159471 DJ |
1801 | /* Keep track of the highest stack argument offset seen, and |
1802 | skip over any kinds of symbols we don't care about. */ | |
c906108c | 1803 | |
55159471 DJ |
1804 | switch (SYMBOL_CLASS (sym)) |
1805 | { | |
1806 | case LOC_ARG: | |
1807 | case LOC_REF_ARG: | |
1808 | { | |
1809 | long current_offset = SYMBOL_VALUE (sym); | |
1810 | arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); | |
1811 | ||
1812 | /* Compute address of next argument by adding the size of | |
1813 | this argument and rounding to an int boundary. */ | |
1814 | current_offset = | |
1815 | ((current_offset + arg_size + sizeof (int) - 1) | |
1816 | & ~(sizeof (int) - 1)); | |
1817 | ||
1818 | /* If this is the highest offset seen yet, set highest_offset. */ | |
1819 | if (highest_offset == -1 | |
1820 | || (current_offset > highest_offset)) | |
1821 | highest_offset = current_offset; | |
1822 | ||
1823 | /* Add the number of ints we're about to print to args_printed. */ | |
1824 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); | |
1825 | } | |
c906108c | 1826 | |
55159471 DJ |
1827 | /* We care about types of symbols, but don't need to keep track of |
1828 | stack offsets in them. */ | |
1829 | case LOC_REGPARM: | |
1830 | case LOC_REGPARM_ADDR: | |
1831 | case LOC_LOCAL_ARG: | |
1832 | case LOC_BASEREG_ARG: | |
1833 | break; | |
c906108c | 1834 | |
55159471 DJ |
1835 | /* Other types of symbols we just skip over. */ |
1836 | default: | |
1837 | continue; | |
1838 | } | |
1839 | ||
1840 | /* We have to look up the symbol because arguments can have | |
1841 | two entries (one a parameter, one a local) and the one we | |
1842 | want is the local, which lookup_symbol will find for us. | |
1843 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1844 | small structure and gcc2 when the argument type is float | |
1845 | and it is passed as a double and converted to float by | |
1846 | the prologue (in the latter case the type of the LOC_ARG | |
1847 | symbol is double and the type of the LOC_LOCAL symbol is | |
1848 | float). */ | |
1849 | /* But if the parameter name is null, don't try it. | |
1850 | Null parameter names occur on the RS/6000, for traceback tables. | |
1851 | FIXME, should we even print them? */ | |
1852 | ||
1853 | if (*SYMBOL_NAME (sym)) | |
c906108c | 1854 | { |
55159471 DJ |
1855 | struct symbol *nsym; |
1856 | nsym = lookup_symbol | |
1857 | (SYMBOL_NAME (sym), | |
1858 | b, VAR_NAMESPACE, (int *) NULL, (struct symtab **) NULL); | |
1859 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) | |
1860 | { | |
1861 | /* There is a LOC_ARG/LOC_REGISTER pair. This means that | |
1862 | it was passed on the stack and loaded into a register, | |
1863 | or passed in a register and stored in a stack slot. | |
1864 | GDB 3.x used the LOC_ARG; GDB 4.0-4.11 used the LOC_REGISTER. | |
1865 | ||
1866 | Reasons for using the LOC_ARG: | |
1867 | (1) because find_saved_registers may be slow for remote | |
1868 | debugging, | |
1869 | (2) because registers are often re-used and stack slots | |
1870 | rarely (never?) are. Therefore using the stack slot is | |
1871 | much less likely to print garbage. | |
1872 | ||
1873 | Reasons why we might want to use the LOC_REGISTER: | |
1874 | (1) So that the backtrace prints the same value as | |
1875 | "print foo". I see no compelling reason why this needs | |
1876 | to be the case; having the backtrace print the value which | |
1877 | was passed in, and "print foo" print the value as modified | |
1878 | within the called function, makes perfect sense to me. | |
1879 | ||
1880 | Additional note: It might be nice if "info args" displayed | |
1881 | both values. | |
1882 | One more note: There is a case with sparc structure passing | |
1883 | where we need to use the LOC_REGISTER, but this is dealt with | |
1884 | by creating a single LOC_REGPARM in symbol reading. */ | |
1885 | ||
1886 | /* Leave sym (the LOC_ARG) alone. */ | |
1887 | ; | |
1888 | } | |
1889 | else | |
1890 | sym = nsym; | |
c906108c | 1891 | } |
c906108c | 1892 | |
55159471 DJ |
1893 | /* Print the current arg. */ |
1894 | if (!first) | |
1895 | ui_out_text (uiout, ", "); | |
1896 | ui_out_wrap_hint (uiout, " "); | |
1897 | ||
1898 | annotate_arg_begin (); | |
1899 | ||
1900 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
1901 | fprintf_symbol_filtered (stb->stream, SYMBOL_SOURCE_NAME (sym), | |
1902 | SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI); | |
1903 | ui_out_field_stream (uiout, "name", stb); | |
1904 | annotate_arg_name_end (); | |
1905 | ui_out_text (uiout, "="); | |
c906108c | 1906 | |
55159471 DJ |
1907 | /* Avoid value_print because it will deref ref parameters. We just |
1908 | want to print their addresses. Print ??? for args whose address | |
1909 | we do not know. We pass 2 as "recurse" to val_print because our | |
1910 | standard indentation here is 4 spaces, and val_print indents | |
1911 | 2 for each recurse. */ | |
1912 | val = read_var_value (sym, fi); | |
c906108c | 1913 | |
55159471 | 1914 | annotate_arg_value (val == NULL ? NULL : VALUE_TYPE (val)); |
c906108c | 1915 | |
55159471 DJ |
1916 | if (val) |
1917 | { | |
55159471 DJ |
1918 | val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, |
1919 | VALUE_ADDRESS (val), | |
1920 | stb->stream, 0, 0, 2, Val_no_prettyprint); | |
1921 | ui_out_field_stream (uiout, "value", stb); | |
1922 | } | |
1923 | else | |
1924 | ui_out_text (uiout, "???"); | |
8b93c638 | 1925 | |
55159471 DJ |
1926 | /* Invoke ui_out_tuple_end. */ |
1927 | do_cleanups (list_chain); | |
c906108c | 1928 | |
55159471 | 1929 | annotate_arg_end (); |
c906108c | 1930 | |
55159471 DJ |
1931 | first = 0; |
1932 | } | |
c906108c SS |
1933 | } |
1934 | ||
1935 | /* Don't print nameless args in situations where we don't know | |
1936 | enough about the stack to find them. */ | |
1937 | if (num != -1) | |
1938 | { | |
1939 | long start; | |
1940 | ||
1941 | if (highest_offset == -1) | |
1942 | start = FRAME_ARGS_SKIP; | |
1943 | else | |
1944 | start = highest_offset; | |
1945 | ||
1946 | print_frame_nameless_args (fi, start, num - args_printed, | |
1947 | first, stream); | |
1948 | } | |
8b93c638 | 1949 | do_cleanups (old_chain); |
c906108c SS |
1950 | } |
1951 | ||
1952 | /* Print nameless args on STREAM. | |
1953 | FI is the frameinfo for this frame, START is the offset | |
1954 | of the first nameless arg, and NUM is the number of nameless args to | |
1955 | print. FIRST is nonzero if this is the first argument (not just | |
1956 | the first nameless arg). */ | |
1957 | ||
1958 | static void | |
fba45db2 KB |
1959 | print_frame_nameless_args (struct frame_info *fi, long start, int num, |
1960 | int first, struct ui_file *stream) | |
c906108c SS |
1961 | { |
1962 | int i; | |
1963 | CORE_ADDR argsaddr; | |
1964 | long arg_value; | |
1965 | ||
1966 | for (i = 0; i < num; i++) | |
1967 | { | |
1968 | QUIT; | |
1969 | #ifdef NAMELESS_ARG_VALUE | |
1970 | NAMELESS_ARG_VALUE (fi, start, &arg_value); | |
1971 | #else | |
1972 | argsaddr = FRAME_ARGS_ADDRESS (fi); | |
1973 | if (!argsaddr) | |
1974 | return; | |
1975 | ||
1976 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
1977 | #endif | |
1978 | ||
1979 | if (!first) | |
1980 | fprintf_filtered (stream, ", "); | |
1981 | ||
1982 | #ifdef PRINT_NAMELESS_INTEGER | |
1983 | PRINT_NAMELESS_INTEGER (stream, arg_value); | |
1984 | #else | |
1985 | #ifdef PRINT_TYPELESS_INTEGER | |
1986 | PRINT_TYPELESS_INTEGER (stream, builtin_type_int, (LONGEST) arg_value); | |
1987 | #else | |
1988 | fprintf_filtered (stream, "%ld", arg_value); | |
1989 | #endif /* PRINT_TYPELESS_INTEGER */ | |
1990 | #endif /* PRINT_NAMELESS_INTEGER */ | |
1991 | first = 0; | |
1992 | start += sizeof (int); | |
1993 | } | |
1994 | } | |
1995 | \f | |
1996 | /* ARGSUSED */ | |
1997 | static void | |
fba45db2 | 1998 | printf_command (char *arg, int from_tty) |
c906108c SS |
1999 | { |
2000 | register char *f = NULL; | |
2001 | register char *s = arg; | |
2002 | char *string = NULL; | |
3d6d86c6 | 2003 | struct value **val_args; |
c906108c SS |
2004 | char *substrings; |
2005 | char *current_substring; | |
2006 | int nargs = 0; | |
2007 | int allocated_args = 20; | |
2008 | struct cleanup *old_cleanups; | |
2009 | ||
f976f6d4 AC |
2010 | val_args = (struct value **) xmalloc (allocated_args |
2011 | * sizeof (struct value *)); | |
c13c43fd | 2012 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2013 | |
2014 | if (s == 0) | |
2015 | error_no_arg ("format-control string and values to print"); | |
2016 | ||
2017 | /* Skip white space before format string */ | |
c5aa993b JM |
2018 | while (*s == ' ' || *s == '\t') |
2019 | s++; | |
c906108c SS |
2020 | |
2021 | /* A format string should follow, enveloped in double quotes */ | |
2022 | if (*s++ != '"') | |
2023 | error ("Bad format string, missing '\"'."); | |
2024 | ||
2025 | /* Parse the format-control string and copy it into the string STRING, | |
2026 | processing some kinds of escape sequence. */ | |
2027 | ||
2028 | f = string = (char *) alloca (strlen (s) + 1); | |
2029 | ||
2030 | while (*s != '"') | |
2031 | { | |
2032 | int c = *s++; | |
2033 | switch (c) | |
2034 | { | |
2035 | case '\0': | |
2036 | error ("Bad format string, non-terminated '\"'."); | |
2037 | ||
2038 | case '\\': | |
2039 | switch (c = *s++) | |
2040 | { | |
2041 | case '\\': | |
2042 | *f++ = '\\'; | |
2043 | break; | |
2044 | case 'a': | |
c906108c | 2045 | *f++ = '\a'; |
c906108c SS |
2046 | break; |
2047 | case 'b': | |
2048 | *f++ = '\b'; | |
2049 | break; | |
2050 | case 'f': | |
2051 | *f++ = '\f'; | |
2052 | break; | |
2053 | case 'n': | |
2054 | *f++ = '\n'; | |
2055 | break; | |
2056 | case 'r': | |
2057 | *f++ = '\r'; | |
2058 | break; | |
2059 | case 't': | |
2060 | *f++ = '\t'; | |
2061 | break; | |
2062 | case 'v': | |
2063 | *f++ = '\v'; | |
2064 | break; | |
2065 | case '"': | |
2066 | *f++ = '"'; | |
2067 | break; | |
2068 | default: | |
2069 | /* ??? TODO: handle other escape sequences */ | |
2070 | error ("Unrecognized escape character \\%c in format string.", | |
2071 | c); | |
2072 | } | |
2073 | break; | |
2074 | ||
2075 | default: | |
2076 | *f++ = c; | |
2077 | } | |
2078 | } | |
2079 | ||
2080 | /* Skip over " and following space and comma. */ | |
2081 | s++; | |
2082 | *f++ = '\0'; | |
c5aa993b JM |
2083 | while (*s == ' ' || *s == '\t') |
2084 | s++; | |
c906108c SS |
2085 | |
2086 | if (*s != ',' && *s != 0) | |
2087 | error ("Invalid argument syntax"); | |
2088 | ||
c5aa993b JM |
2089 | if (*s == ',') |
2090 | s++; | |
2091 | while (*s == ' ' || *s == '\t') | |
2092 | s++; | |
c906108c SS |
2093 | |
2094 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2095 | substrings = alloca (strlen (string) * 2); | |
2096 | current_substring = substrings; | |
2097 | ||
2098 | { | |
2099 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2100 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2101 | something of the right size. */ | |
2102 | ||
c5aa993b JM |
2103 | enum argclass |
2104 | { | |
2105 | no_arg, int_arg, string_arg, double_arg, long_long_arg | |
2106 | }; | |
c906108c SS |
2107 | enum argclass *argclass; |
2108 | enum argclass this_argclass; | |
2109 | char *last_arg; | |
2110 | int nargs_wanted; | |
2111 | int lcount; | |
2112 | int i; | |
2113 | ||
2114 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2115 | nargs_wanted = 0; | |
2116 | f = string; | |
2117 | last_arg = string; | |
2118 | while (*f) | |
2119 | if (*f++ == '%') | |
2120 | { | |
2121 | lcount = 0; | |
c5aa993b | 2122 | while (strchr ("0123456789.hlL-+ #", *f)) |
c906108c SS |
2123 | { |
2124 | if (*f == 'l' || *f == 'L') | |
2125 | lcount++; | |
2126 | f++; | |
2127 | } | |
2128 | switch (*f) | |
2129 | { | |
2130 | case 's': | |
2131 | this_argclass = string_arg; | |
2132 | break; | |
2133 | ||
2134 | case 'e': | |
2135 | case 'f': | |
2136 | case 'g': | |
2137 | this_argclass = double_arg; | |
2138 | break; | |
2139 | ||
2140 | case '*': | |
2141 | error ("`*' not supported for precision or width in printf"); | |
2142 | ||
2143 | case 'n': | |
2144 | error ("Format specifier `n' not supported in printf"); | |
2145 | ||
2146 | case '%': | |
2147 | this_argclass = no_arg; | |
2148 | break; | |
2149 | ||
2150 | default: | |
2151 | if (lcount > 1) | |
2152 | this_argclass = long_long_arg; | |
2153 | else | |
2154 | this_argclass = int_arg; | |
2155 | break; | |
2156 | } | |
2157 | f++; | |
2158 | if (this_argclass != no_arg) | |
2159 | { | |
2160 | strncpy (current_substring, last_arg, f - last_arg); | |
2161 | current_substring += f - last_arg; | |
2162 | *current_substring++ = '\0'; | |
2163 | last_arg = f; | |
2164 | argclass[nargs_wanted++] = this_argclass; | |
2165 | } | |
2166 | } | |
2167 | ||
2168 | /* Now, parse all arguments and evaluate them. | |
2169 | Store the VALUEs in VAL_ARGS. */ | |
2170 | ||
2171 | while (*s != '\0') | |
2172 | { | |
2173 | char *s1; | |
2174 | if (nargs == allocated_args) | |
f976f6d4 AC |
2175 | val_args = (struct value **) xrealloc ((char *) val_args, |
2176 | (allocated_args *= 2) | |
2177 | * sizeof (struct value *)); | |
c906108c SS |
2178 | s1 = s; |
2179 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2180 | |
c906108c SS |
2181 | /* If format string wants a float, unchecked-convert the value to |
2182 | floating point of the same size */ | |
c5aa993b | 2183 | |
c906108c SS |
2184 | if (argclass[nargs] == double_arg) |
2185 | { | |
2186 | struct type *type = VALUE_TYPE (val_args[nargs]); | |
2187 | if (TYPE_LENGTH (type) == sizeof (float)) | |
c5aa993b | 2188 | VALUE_TYPE (val_args[nargs]) = builtin_type_float; |
c906108c | 2189 | if (TYPE_LENGTH (type) == sizeof (double)) |
c5aa993b | 2190 | VALUE_TYPE (val_args[nargs]) = builtin_type_double; |
c906108c SS |
2191 | } |
2192 | nargs++; | |
2193 | s = s1; | |
2194 | if (*s == ',') | |
2195 | s++; | |
2196 | } | |
c5aa993b | 2197 | |
c906108c SS |
2198 | if (nargs != nargs_wanted) |
2199 | error ("Wrong number of arguments for specified format-string"); | |
2200 | ||
2201 | /* Now actually print them. */ | |
2202 | current_substring = substrings; | |
2203 | for (i = 0; i < nargs; i++) | |
2204 | { | |
2205 | switch (argclass[i]) | |
2206 | { | |
2207 | case string_arg: | |
2208 | { | |
2209 | char *str; | |
2210 | CORE_ADDR tem; | |
2211 | int j; | |
1aa20aa8 | 2212 | tem = value_as_address (val_args[i]); |
c906108c SS |
2213 | |
2214 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2215 | for (j = 0;; j++) |
c906108c SS |
2216 | { |
2217 | char c; | |
2218 | QUIT; | |
d4b2399a | 2219 | read_memory (tem + j, &c, 1); |
c906108c SS |
2220 | if (c == 0) |
2221 | break; | |
2222 | } | |
2223 | ||
2224 | /* Copy the string contents into a string inside GDB. */ | |
2225 | str = (char *) alloca (j + 1); | |
7b92f6e1 MS |
2226 | if (j != 0) |
2227 | read_memory (tem, str, j); | |
c906108c SS |
2228 | str[j] = 0; |
2229 | ||
2230 | printf_filtered (current_substring, str); | |
2231 | } | |
2232 | break; | |
2233 | case double_arg: | |
2234 | { | |
2235 | double val = value_as_double (val_args[i]); | |
2236 | printf_filtered (current_substring, val); | |
2237 | break; | |
2238 | } | |
2239 | case long_long_arg: | |
2240 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2241 | { | |
2242 | long long val = value_as_long (val_args[i]); | |
2243 | printf_filtered (current_substring, val); | |
2244 | break; | |
2245 | } | |
2246 | #else | |
2247 | error ("long long not supported in printf"); | |
2248 | #endif | |
2249 | case int_arg: | |
2250 | { | |
2251 | /* FIXME: there should be separate int_arg and long_arg. */ | |
2252 | long val = value_as_long (val_args[i]); | |
2253 | printf_filtered (current_substring, val); | |
2254 | break; | |
2255 | } | |
c5aa993b JM |
2256 | default: /* purecov: deadcode */ |
2257 | error ("internal error in printf_command"); /* purecov: deadcode */ | |
c906108c SS |
2258 | } |
2259 | /* Skip to the next substring. */ | |
2260 | current_substring += strlen (current_substring) + 1; | |
2261 | } | |
2262 | /* Print the portion of the format string after the last argument. */ | |
2263 | printf_filtered (last_arg); | |
2264 | } | |
2265 | do_cleanups (old_cleanups); | |
2266 | } | |
2267 | \f | |
2268 | /* Dump a specified section of assembly code. With no command line | |
2269 | arguments, this command will dump the assembly code for the | |
2270 | function surrounding the pc value in the selected frame. With one | |
2271 | argument, it will dump the assembly code surrounding that pc value. | |
2272 | Two arguments are interpeted as bounds within which to dump | |
2273 | assembly. */ | |
2274 | ||
2275 | /* ARGSUSED */ | |
2276 | static void | |
fba45db2 | 2277 | disassemble_command (char *arg, int from_tty) |
c906108c SS |
2278 | { |
2279 | CORE_ADDR low, high; | |
2280 | char *name; | |
2281 | CORE_ADDR pc, pc_masked; | |
2282 | char *space_index; | |
2283 | #if 0 | |
2284 | asection *section; | |
2285 | #endif | |
2286 | ||
2287 | name = NULL; | |
2288 | if (!arg) | |
2289 | { | |
2290 | if (!selected_frame) | |
2291 | error ("No frame selected.\n"); | |
2292 | ||
2293 | pc = get_frame_pc (selected_frame); | |
2294 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
2295 | error ("No function contains program counter for selected frame.\n"); | |
2296 | #if defined(TUI) | |
2297 | else if (tui_version) | |
5ecb1806 | 2298 | low = tuiGetLowDisassemblyAddress (low, pc); |
c906108c SS |
2299 | #endif |
2300 | low += FUNCTION_START_OFFSET; | |
2301 | } | |
2302 | else if (!(space_index = (char *) strchr (arg, ' '))) | |
2303 | { | |
2304 | /* One argument. */ | |
2305 | pc = parse_and_eval_address (arg); | |
2306 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
2307 | error ("No function contains specified address.\n"); | |
2308 | #if defined(TUI) | |
2309 | else if (tui_version) | |
5ecb1806 | 2310 | low = tuiGetLowDisassemblyAddress (low, pc); |
c906108c SS |
2311 | #endif |
2312 | low += FUNCTION_START_OFFSET; | |
2313 | } | |
2314 | else | |
2315 | { | |
2316 | /* Two arguments. */ | |
2317 | *space_index = '\0'; | |
2318 | low = parse_and_eval_address (arg); | |
2319 | high = parse_and_eval_address (space_index + 1); | |
2320 | } | |
2321 | ||
2322 | #if defined(TUI) | |
5ecb1806 | 2323 | if (!tui_is_window_visible (DISASSEM_WIN)) |
c906108c SS |
2324 | #endif |
2325 | { | |
2326 | printf_filtered ("Dump of assembler code "); | |
2327 | if (name != NULL) | |
2328 | { | |
2329 | printf_filtered ("for function %s:\n", name); | |
2330 | } | |
2331 | else | |
2332 | { | |
2333 | printf_filtered ("from "); | |
2334 | print_address_numeric (low, 1, gdb_stdout); | |
2335 | printf_filtered (" to "); | |
2336 | print_address_numeric (high, 1, gdb_stdout); | |
2337 | printf_filtered (":\n"); | |
2338 | } | |
2339 | ||
2340 | /* Dump the specified range. */ | |
2341 | pc = low; | |
2342 | ||
2343 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
2344 | pc_masked = GDB_TARGET_MASK_DISAS_PC (pc); | |
2345 | #else | |
2346 | pc_masked = pc; | |
2347 | #endif | |
2348 | ||
2349 | while (pc_masked < high) | |
2350 | { | |
2351 | QUIT; | |
2352 | print_address (pc_masked, gdb_stdout); | |
2353 | printf_filtered (":\t"); | |
2354 | /* We often wrap here if there are long symbolic names. */ | |
2355 | wrap_here (" "); | |
2356 | pc += print_insn (pc, gdb_stdout); | |
2357 | printf_filtered ("\n"); | |
2358 | ||
2359 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
2360 | pc_masked = GDB_TARGET_MASK_DISAS_PC (pc); | |
2361 | #else | |
2362 | pc_masked = pc; | |
2363 | #endif | |
2364 | } | |
2365 | printf_filtered ("End of assembler dump.\n"); | |
2366 | gdb_flush (gdb_stdout); | |
2367 | } | |
2368 | #if defined(TUI) | |
2369 | else | |
2370 | { | |
5ecb1806 | 2371 | tui_show_assembly (low); |
c906108c SS |
2372 | } |
2373 | #endif | |
2374 | } | |
2375 | ||
2376 | /* Print the instruction at address MEMADDR in debugged memory, | |
2377 | on STREAM. Returns length of the instruction, in bytes. */ | |
2378 | ||
2379 | static int | |
fba45db2 | 2380 | print_insn (CORE_ADDR memaddr, struct ui_file *stream) |
c906108c | 2381 | { |
d7449b42 | 2382 | if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) |
c906108c SS |
2383 | TARGET_PRINT_INSN_INFO->endian = BFD_ENDIAN_BIG; |
2384 | else | |
2385 | TARGET_PRINT_INSN_INFO->endian = BFD_ENDIAN_LITTLE; | |
2386 | ||
2387 | if (TARGET_ARCHITECTURE != NULL) | |
2388 | TARGET_PRINT_INSN_INFO->mach = TARGET_ARCHITECTURE->mach; | |
2389 | /* else: should set .mach=0 but some disassemblers don't grok this */ | |
2390 | ||
99a6d8ba KS |
2391 | TARGET_PRINT_INSN_INFO->stream = stream; |
2392 | ||
c906108c SS |
2393 | return TARGET_PRINT_INSN (memaddr, TARGET_PRINT_INSN_INFO); |
2394 | } | |
c906108c | 2395 | \f |
c5aa993b | 2396 | |
c906108c | 2397 | void |
fba45db2 | 2398 | _initialize_printcmd (void) |
c906108c | 2399 | { |
c94fdfd0 EZ |
2400 | struct cmd_list_element *c; |
2401 | ||
c906108c SS |
2402 | current_display_number = -1; |
2403 | ||
2404 | add_info ("address", address_info, | |
c5aa993b | 2405 | "Describe where symbol SYM is stored."); |
c906108c | 2406 | |
c5aa993b | 2407 | add_info ("symbol", sym_info, |
c906108c SS |
2408 | "Describe what symbol is at location ADDR.\n\ |
2409 | Only for symbols with fixed locations (global or static scope)."); | |
2410 | ||
2411 | add_com ("x", class_vars, x_command, | |
2412 | concat ("Examine memory: x/FMT ADDRESS.\n\ | |
2413 | ADDRESS is an expression for the memory address to examine.\n\ | |
2414 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2415 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
2416 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n", | |
c5aa993b | 2417 | "Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ |
c906108c SS |
2418 | The specified number of objects of the specified size are printed\n\ |
2419 | according to the format.\n\n\ | |
2420 | Defaults for format and size letters are those previously used.\n\ | |
2421 | Default count is 1. Default address is following last thing printed\n\ | |
2422 | with this command or \"print\".", NULL)); | |
2423 | ||
c94fdfd0 EZ |
2424 | c = add_com ("disassemble", class_vars, disassemble_command, |
2425 | "Disassemble a specified section of memory.\n\ | |
c906108c SS |
2426 | Default is the function surrounding the pc of the selected frame.\n\ |
2427 | With a single argument, the function surrounding that address is dumped.\n\ | |
2428 | Two arguments are taken as a range of memory to dump."); | |
5ba2abeb | 2429 | set_cmd_completer (c, location_completer); |
c906108c | 2430 | if (xdb_commands) |
c5aa993b | 2431 | add_com_alias ("va", "disassemble", class_xdb, 0); |
c906108c SS |
2432 | |
2433 | #if 0 | |
2434 | add_com ("whereis", class_vars, whereis_command, | |
2435 | "Print line number and file of definition of variable."); | |
2436 | #endif | |
c5aa993b | 2437 | |
c906108c SS |
2438 | add_info ("display", display_info, |
2439 | "Expressions to display when program stops, with code numbers."); | |
2440 | ||
2441 | add_cmd ("undisplay", class_vars, undisplay_command, | |
2442 | "Cancel some expressions to be displayed when program stops.\n\ | |
2443 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2444 | No argument means cancel all automatic-display expressions.\n\ | |
2445 | \"delete display\" has the same effect as this command.\n\ | |
2446 | Do \"info display\" to see current list of code numbers.", | |
c5aa993b | 2447 | &cmdlist); |
c906108c SS |
2448 | |
2449 | add_com ("display", class_vars, display_command, | |
2450 | "Print value of expression EXP each time the program stops.\n\ | |
2451 | /FMT may be used before EXP as in the \"print\" command.\n\ | |
2452 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2453 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2454 | and examining is done as in the \"x\" command.\n\n\ | |
2455 | With no argument, display all currently requested auto-display expressions.\n\ | |
2456 | Use \"undisplay\" to cancel display requests previously made." | |
c5aa993b | 2457 | ); |
c906108c | 2458 | |
c5aa993b | 2459 | add_cmd ("display", class_vars, enable_display, |
c906108c SS |
2460 | "Enable some expressions to be displayed when program stops.\n\ |
2461 | Arguments are the code numbers of the expressions to resume displaying.\n\ | |
2462 | No argument means enable all automatic-display expressions.\n\ | |
2463 | Do \"info display\" to see current list of code numbers.", &enablelist); | |
2464 | ||
c5aa993b | 2465 | add_cmd ("display", class_vars, disable_display_command, |
c906108c SS |
2466 | "Disable some expressions to be displayed when program stops.\n\ |
2467 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2468 | No argument means disable all automatic-display expressions.\n\ | |
2469 | Do \"info display\" to see current list of code numbers.", &disablelist); | |
2470 | ||
c5aa993b | 2471 | add_cmd ("display", class_vars, undisplay_command, |
c906108c SS |
2472 | "Cancel some expressions to be displayed when program stops.\n\ |
2473 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2474 | No argument means cancel all automatic-display expressions.\n\ | |
2475 | Do \"info display\" to see current list of code numbers.", &deletelist); | |
2476 | ||
2477 | add_com ("printf", class_vars, printf_command, | |
c5aa993b | 2478 | "printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ |
c906108c SS |
2479 | This is useful for formatted output in user-defined commands."); |
2480 | ||
2481 | add_com ("output", class_vars, output_command, | |
2482 | "Like \"print\" but don't put in value history and don't print newline.\n\ | |
2483 | This is useful in user-defined commands."); | |
2484 | ||
2485 | add_prefix_cmd ("set", class_vars, set_command, | |
c5aa993b | 2486 | concat ("Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
c906108c SS |
2487 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2488 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2489 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2490 | variable in the program being debugged. EXP is any valid expression.\n", | |
c5aa993b | 2491 | "Use \"set variable\" for variables with names identical to set subcommands.\n\ |
c906108c SS |
2492 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
2493 | You can see these environment settings with the \"show\" command.", NULL), | |
c5aa993b | 2494 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2495 | if (dbx_commands) |
c5aa993b | 2496 | add_com ("assign", class_vars, set_command, concat ("Evaluate expression \ |
c906108c SS |
2497 | EXP and assign result to variable VAR, using assignment\n\ |
2498 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2499 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2500 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2501 | variable in the program being debugged. EXP is any valid expression.\n", | |
c5aa993b | 2502 | "Use \"set variable\" for variables with names identical to set subcommands.\n\ |
c906108c SS |
2503 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
2504 | You can see these environment settings with the \"show\" command.", NULL)); | |
2505 | ||
2506 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
c94fdfd0 EZ |
2507 | c = add_com ("call", class_vars, call_command, |
2508 | "Call a function in the program.\n\ | |
c906108c SS |
2509 | The argument is the function name and arguments, in the notation of the\n\ |
2510 | current working language. The result is printed and saved in the value\n\ | |
2511 | history, if it is not void."); | |
5ba2abeb | 2512 | set_cmd_completer (c, location_completer); |
c906108c SS |
2513 | |
2514 | add_cmd ("variable", class_vars, set_command, | |
c5aa993b | 2515 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
c906108c SS |
2516 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2517 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2518 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2519 | variable in the program being debugged. EXP is any valid expression.\n\ | |
2520 | This may usually be abbreviated to simply \"set\".", | |
c5aa993b | 2521 | &setlist); |
c906108c | 2522 | |
c94fdfd0 | 2523 | c = add_com ("print", class_vars, print_command, |
c906108c SS |
2524 | concat ("Print value of expression EXP.\n\ |
2525 | Variables accessible are those of the lexical environment of the selected\n\ | |
2526 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2527 | \n\ | |
2528 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2529 | $$NUM refers to NUM'th value back from the last one.\n\ | |
2530 | Names starting with $ refer to registers (with the values they would have\n", | |
c5aa993b | 2531 | "if the program were to return to the stack frame now selected, restoring\n\ |
c906108c SS |
2532 | all registers saved by frames farther in) or else to debugger\n\ |
2533 | \"convenience\" variables (any such name not a known register).\n\ | |
2534 | Use assignment expressions to give values to convenience variables.\n", | |
2535 | "\n\ | |
2536 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ | |
2537 | @ is a binary operator for treating consecutive data objects\n\ | |
2538 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2539 | element is FOO, whose second element is stored in the space following\n\ | |
2540 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
2541 | resides in memory.\n", | |
2542 | "\n\ | |
2543 | EXP may be preceded with /FMT, where FMT is a format letter\n\ | |
2544 | but no count or size letter (see \"x\" command).", NULL)); | |
5ba2abeb | 2545 | set_cmd_completer (c, location_completer); |
c906108c SS |
2546 | add_com_alias ("p", "print", class_vars, 1); |
2547 | ||
c94fdfd0 | 2548 | c = add_com ("inspect", class_vars, inspect_command, |
c5aa993b | 2549 | "Same as \"print\" command, except that if you are running in the epoch\n\ |
c906108c | 2550 | environment, the value is printed in its own window."); |
5ba2abeb | 2551 | set_cmd_completer (c, location_completer); |
c906108c SS |
2552 | |
2553 | add_show_from_set ( | |
c5aa993b JM |
2554 | add_set_cmd ("max-symbolic-offset", no_class, var_uinteger, |
2555 | (char *) &max_symbolic_offset, | |
2556 | "Set the largest offset that will be printed in <symbol+1234> form.", | |
2557 | &setprintlist), | |
2558 | &showprintlist); | |
c906108c | 2559 | add_show_from_set ( |
c5aa993b JM |
2560 | add_set_cmd ("symbol-filename", no_class, var_boolean, |
2561 | (char *) &print_symbol_filename, | |
2562 | "Set printing of source filename and line number with <symbol>.", | |
2563 | &setprintlist), | |
2564 | &showprintlist); | |
c906108c SS |
2565 | |
2566 | /* For examine/instruction a single byte quantity is specified as | |
2567 | the data. This avoids problems with value_at_lazy() requiring a | |
2568 | valid data type (and rejecting VOID). */ | |
2569 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2570 | ||
2571 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2572 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2573 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2574 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2575 | ||
2576 | } |