Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
b6ba6518 KB |
3 | Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4 | 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. | |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "gdb_string.h" | |
25 | #include "frame.h" | |
26 | #include "symtab.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "value.h" | |
29 | #include "language.h" | |
30 | #include "expression.h" | |
31 | #include "gdbcore.h" | |
32 | #include "gdbcmd.h" | |
33 | #include "target.h" | |
34 | #include "breakpoint.h" | |
35 | #include "demangle.h" | |
36 | #include "valprint.h" | |
37 | #include "annotate.h" | |
c5aa993b JM |
38 | #include "symfile.h" /* for overlay functions */ |
39 | #include "objfiles.h" /* ditto */ | |
c94fdfd0 | 40 | #include "completer.h" /* for completion functions */ |
8b93c638 JM |
41 | #ifdef UI_OUT |
42 | #include "ui-out.h" | |
43 | #endif | |
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 JB |
393 | /* If the value is a pointer, and pointers and addresses are not the |
394 | same, then at this point, the value's length is TARGET_ADDR_BIT, not | |
395 | TYPE_LENGTH (type). */ | |
396 | if (TYPE_CODE (type) == TYPE_CODE_PTR) | |
397 | len = TARGET_ADDR_BIT; | |
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); | |
927 | ||
928 | /* C++: figure out what type we actually want to print it as. */ | |
929 | type = VALUE_TYPE (val); | |
930 | ||
931 | if (objectprint | |
c5aa993b | 932 | && (TYPE_CODE (type) == TYPE_CODE_PTR |
c906108c | 933 | || TYPE_CODE (type) == TYPE_CODE_REF) |
c5aa993b | 934 | && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT |
c906108c SS |
935 | || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_UNION)) |
936 | { | |
3d6d86c6 | 937 | struct value *v; |
c906108c SS |
938 | |
939 | v = value_from_vtable_info (val, TYPE_TARGET_TYPE (type)); | |
940 | if (v != 0) | |
941 | { | |
942 | val = v; | |
943 | type = VALUE_TYPE (val); | |
944 | } | |
945 | } | |
946 | } | |
947 | else | |
948 | val = access_value_history (0); | |
949 | ||
950 | if (voidprint || (val && VALUE_TYPE (val) && | |
c5aa993b | 951 | TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_VOID)) |
c906108c SS |
952 | { |
953 | int histindex = record_latest_value (val); | |
954 | ||
955 | if (histindex >= 0) | |
956 | annotate_value_history_begin (histindex, VALUE_TYPE (val)); | |
957 | else | |
958 | annotate_value_begin (VALUE_TYPE (val)); | |
959 | ||
960 | if (inspect) | |
961 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", exp, histindex); | |
c5aa993b JM |
962 | else if (histindex >= 0) |
963 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
964 | |
965 | if (histindex >= 0) | |
966 | annotate_value_history_value (); | |
967 | ||
2acceee2 | 968 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
969 | printf_filtered ("\n"); |
970 | ||
971 | if (histindex >= 0) | |
972 | annotate_value_history_end (); | |
973 | else | |
974 | annotate_value_end (); | |
975 | ||
976 | if (inspect) | |
c5aa993b | 977 | printf_unfiltered ("\") )\030"); |
c906108c SS |
978 | } |
979 | ||
980 | if (cleanup) | |
981 | do_cleanups (old_chain); | |
c5aa993b | 982 | inspect_it = 0; /* Reset print routines to normal */ |
c906108c SS |
983 | } |
984 | ||
985 | /* ARGSUSED */ | |
986 | static void | |
fba45db2 | 987 | print_command (char *exp, int from_tty) |
c906108c SS |
988 | { |
989 | print_command_1 (exp, 0, 1); | |
990 | } | |
991 | ||
992 | /* Same as print, except in epoch, it gets its own window */ | |
993 | /* ARGSUSED */ | |
994 | static void | |
fba45db2 | 995 | inspect_command (char *exp, int from_tty) |
c906108c SS |
996 | { |
997 | extern int epoch_interface; | |
998 | ||
999 | print_command_1 (exp, epoch_interface, 1); | |
1000 | } | |
1001 | ||
1002 | /* Same as print, except it doesn't print void results. */ | |
1003 | /* ARGSUSED */ | |
1004 | static void | |
fba45db2 | 1005 | call_command (char *exp, int from_tty) |
c906108c SS |
1006 | { |
1007 | print_command_1 (exp, 0, 0); | |
1008 | } | |
1009 | ||
1010 | /* ARGSUSED */ | |
1011 | void | |
fba45db2 | 1012 | output_command (char *exp, int from_tty) |
c906108c SS |
1013 | { |
1014 | struct expression *expr; | |
1015 | register struct cleanup *old_chain; | |
1016 | register char format = 0; | |
3d6d86c6 | 1017 | struct value *val; |
c906108c SS |
1018 | struct format_data fmt; |
1019 | ||
1020 | if (exp && *exp == '/') | |
1021 | { | |
1022 | exp++; | |
1023 | fmt = decode_format (&exp, 0, 0); | |
1024 | validate_format (fmt, "output"); | |
1025 | format = fmt.format; | |
1026 | } | |
1027 | ||
1028 | expr = parse_expression (exp); | |
c13c43fd | 1029 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1030 | |
1031 | val = evaluate_expression (expr); | |
1032 | ||
1033 | annotate_value_begin (VALUE_TYPE (val)); | |
1034 | ||
2acceee2 | 1035 | print_formatted (val, format, fmt.size, gdb_stdout); |
c906108c SS |
1036 | |
1037 | annotate_value_end (); | |
1038 | ||
2acceee2 JM |
1039 | wrap_here (""); |
1040 | gdb_flush (gdb_stdout); | |
1041 | ||
c906108c SS |
1042 | do_cleanups (old_chain); |
1043 | } | |
1044 | ||
1045 | /* ARGSUSED */ | |
1046 | static void | |
fba45db2 | 1047 | set_command (char *exp, int from_tty) |
c906108c SS |
1048 | { |
1049 | struct expression *expr = parse_expression (exp); | |
c13c43fd PDM |
1050 | register struct cleanup *old_chain = |
1051 | make_cleanup (free_current_contents, &expr); | |
c906108c SS |
1052 | evaluate_expression (expr); |
1053 | do_cleanups (old_chain); | |
1054 | } | |
1055 | ||
1056 | /* ARGSUSED */ | |
1057 | static void | |
fba45db2 | 1058 | sym_info (char *arg, int from_tty) |
c906108c SS |
1059 | { |
1060 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1061 | struct objfile *objfile; |
1062 | struct obj_section *osect; | |
1063 | asection *sect; | |
1064 | CORE_ADDR addr, sect_addr; | |
1065 | int matches = 0; | |
1066 | unsigned int offset; | |
c906108c SS |
1067 | |
1068 | if (!arg) | |
1069 | error_no_arg ("address"); | |
1070 | ||
1071 | addr = parse_and_eval_address (arg); | |
1072 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b JM |
1073 | { |
1074 | sect = osect->the_bfd_section; | |
1075 | sect_addr = overlay_mapped_address (addr, sect); | |
c906108c | 1076 | |
c5aa993b JM |
1077 | if (osect->addr <= sect_addr && sect_addr < osect->endaddr && |
1078 | (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, sect))) | |
1079 | { | |
1080 | matches = 1; | |
1081 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
1082 | if (offset) | |
1083 | printf_filtered ("%s + %u in ", | |
1084 | SYMBOL_SOURCE_NAME (msymbol), offset); | |
1085 | else | |
1086 | printf_filtered ("%s in ", | |
1087 | SYMBOL_SOURCE_NAME (msymbol)); | |
1088 | if (pc_in_unmapped_range (addr, sect)) | |
1089 | printf_filtered ("load address range of "); | |
1090 | if (section_is_overlay (sect)) | |
1091 | printf_filtered ("%s overlay ", | |
1092 | section_is_mapped (sect) ? "mapped" : "unmapped"); | |
1093 | printf_filtered ("section %s", sect->name); | |
1094 | printf_filtered ("\n"); | |
1095 | } | |
1096 | } | |
c906108c SS |
1097 | if (matches == 0) |
1098 | printf_filtered ("No symbol matches %s.\n", arg); | |
1099 | } | |
1100 | ||
1101 | /* ARGSUSED */ | |
1102 | static void | |
fba45db2 | 1103 | address_info (char *exp, int from_tty) |
c906108c SS |
1104 | { |
1105 | register struct symbol *sym; | |
1106 | register struct minimal_symbol *msymbol; | |
1107 | register long val; | |
1108 | register long basereg; | |
1109 | asection *section; | |
1110 | CORE_ADDR load_addr; | |
1111 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero | |
1112 | if exp is a field of `this'. */ | |
1113 | ||
1114 | if (exp == 0) | |
1115 | error ("Argument required."); | |
1116 | ||
c5aa993b JM |
1117 | sym = lookup_symbol (exp, get_selected_block (), VAR_NAMESPACE, |
1118 | &is_a_field_of_this, (struct symtab **) NULL); | |
c906108c SS |
1119 | if (sym == NULL) |
1120 | { | |
1121 | if (is_a_field_of_this) | |
1122 | { | |
1123 | printf_filtered ("Symbol \""); | |
1124 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1125 | current_language->la_language, DMGL_ANSI); | |
1126 | printf_filtered ("\" is a field of the local class variable `this'\n"); | |
1127 | return; | |
1128 | } | |
1129 | ||
1130 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1131 | ||
1132 | if (msymbol != NULL) | |
1133 | { | |
1134 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); | |
1135 | ||
1136 | printf_filtered ("Symbol \""); | |
1137 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1138 | current_language->la_language, DMGL_ANSI); | |
1139 | printf_filtered ("\" is at "); | |
1140 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1141 | printf_filtered (" in a file compiled without debugging"); | |
1142 | section = SYMBOL_BFD_SECTION (msymbol); | |
1143 | if (section_is_overlay (section)) | |
1144 | { | |
1145 | load_addr = overlay_unmapped_address (load_addr, section); | |
1146 | printf_filtered (",\n -- loaded at "); | |
1147 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1148 | printf_filtered (" in overlay section %s", section->name); | |
1149 | } | |
1150 | printf_filtered (".\n"); | |
1151 | } | |
1152 | else | |
1153 | error ("No symbol \"%s\" in current context.", exp); | |
1154 | return; | |
1155 | } | |
1156 | ||
1157 | printf_filtered ("Symbol \""); | |
1158 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_NAME (sym), | |
1159 | current_language->la_language, DMGL_ANSI); | |
1160 | printf_filtered ("\" is "); | |
c5aa993b | 1161 | val = SYMBOL_VALUE (sym); |
c906108c SS |
1162 | basereg = SYMBOL_BASEREG (sym); |
1163 | section = SYMBOL_BFD_SECTION (sym); | |
1164 | ||
1165 | switch (SYMBOL_CLASS (sym)) | |
1166 | { | |
1167 | case LOC_CONST: | |
1168 | case LOC_CONST_BYTES: | |
1169 | printf_filtered ("constant"); | |
1170 | break; | |
1171 | ||
1172 | case LOC_LABEL: | |
1173 | printf_filtered ("a label at address "); | |
c5aa993b | 1174 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1175 | 1, gdb_stdout); |
1176 | if (section_is_overlay (section)) | |
1177 | { | |
1178 | load_addr = overlay_unmapped_address (load_addr, section); | |
1179 | printf_filtered (",\n -- loaded at "); | |
1180 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1181 | printf_filtered (" in overlay section %s", section->name); | |
1182 | } | |
1183 | break; | |
1184 | ||
1185 | case LOC_REGISTER: | |
1186 | printf_filtered ("a variable in register %s", REGISTER_NAME (val)); | |
1187 | break; | |
1188 | ||
1189 | case LOC_STATIC: | |
1190 | printf_filtered ("static storage at address "); | |
c5aa993b | 1191 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), |
c906108c SS |
1192 | 1, gdb_stdout); |
1193 | if (section_is_overlay (section)) | |
1194 | { | |
1195 | load_addr = overlay_unmapped_address (load_addr, section); | |
1196 | printf_filtered (",\n -- loaded at "); | |
1197 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1198 | printf_filtered (" in overlay section %s", section->name); | |
1199 | } | |
1200 | break; | |
1201 | ||
1202 | case LOC_INDIRECT: | |
1203 | printf_filtered ("external global (indirect addressing), at address *("); | |
1204 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (sym), | |
1205 | 1, gdb_stdout); | |
1206 | printf_filtered (")"); | |
1207 | if (section_is_overlay (section)) | |
1208 | { | |
1209 | load_addr = overlay_unmapped_address (load_addr, section); | |
1210 | printf_filtered (",\n -- loaded at "); | |
1211 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1212 | printf_filtered (" in overlay section %s", section->name); | |
1213 | } | |
1214 | break; | |
1215 | ||
1216 | case LOC_REGPARM: | |
1217 | printf_filtered ("an argument in register %s", REGISTER_NAME (val)); | |
1218 | break; | |
1219 | ||
1220 | case LOC_REGPARM_ADDR: | |
1221 | printf_filtered ("address of an argument in register %s", REGISTER_NAME (val)); | |
1222 | break; | |
1223 | ||
1224 | case LOC_ARG: | |
1225 | printf_filtered ("an argument at offset %ld", val); | |
1226 | break; | |
1227 | ||
1228 | case LOC_LOCAL_ARG: | |
1229 | printf_filtered ("an argument at frame offset %ld", val); | |
1230 | break; | |
1231 | ||
1232 | case LOC_LOCAL: | |
1233 | printf_filtered ("a local variable at frame offset %ld", val); | |
1234 | break; | |
1235 | ||
1236 | case LOC_REF_ARG: | |
1237 | printf_filtered ("a reference argument at offset %ld", val); | |
1238 | break; | |
1239 | ||
1240 | case LOC_BASEREG: | |
1241 | printf_filtered ("a variable at offset %ld from register %s", | |
c5aa993b | 1242 | val, REGISTER_NAME (basereg)); |
c906108c SS |
1243 | break; |
1244 | ||
1245 | case LOC_BASEREG_ARG: | |
1246 | printf_filtered ("an argument at offset %ld from register %s", | |
c5aa993b | 1247 | val, REGISTER_NAME (basereg)); |
c906108c SS |
1248 | break; |
1249 | ||
1250 | case LOC_TYPEDEF: | |
1251 | printf_filtered ("a typedef"); | |
1252 | break; | |
1253 | ||
1254 | case LOC_BLOCK: | |
1255 | printf_filtered ("a function at address "); | |
1256 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
1257 | print_address_numeric | |
c5aa993b | 1258 | (load_addr = GDB_TARGET_MASK_DISAS_PC (BLOCK_START (SYMBOL_BLOCK_VALUE (sym))), |
c906108c SS |
1259 | 1, gdb_stdout); |
1260 | #else | |
c5aa993b | 1261 | print_address_numeric (load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), |
c906108c SS |
1262 | 1, gdb_stdout); |
1263 | #endif | |
1264 | if (section_is_overlay (section)) | |
1265 | { | |
1266 | load_addr = overlay_unmapped_address (load_addr, section); | |
1267 | printf_filtered (",\n -- loaded at "); | |
1268 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1269 | printf_filtered (" in overlay section %s", section->name); | |
1270 | } | |
1271 | break; | |
1272 | ||
1273 | case LOC_UNRESOLVED: | |
1274 | { | |
1275 | struct minimal_symbol *msym; | |
1276 | ||
1277 | msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, NULL); | |
1278 | if (msym == NULL) | |
1279 | printf_filtered ("unresolved"); | |
1280 | else | |
1281 | { | |
1282 | section = SYMBOL_BFD_SECTION (msym); | |
1283 | printf_filtered ("static storage at address "); | |
c5aa993b | 1284 | print_address_numeric (load_addr = SYMBOL_VALUE_ADDRESS (msym), |
c906108c SS |
1285 | 1, gdb_stdout); |
1286 | if (section_is_overlay (section)) | |
1287 | { | |
1288 | load_addr = overlay_unmapped_address (load_addr, section); | |
1289 | printf_filtered (",\n -- loaded at "); | |
1290 | print_address_numeric (load_addr, 1, gdb_stdout); | |
1291 | printf_filtered (" in overlay section %s", section->name); | |
1292 | } | |
1293 | } | |
1294 | } | |
1295 | break; | |
1296 | ||
1297 | case LOC_THREAD_LOCAL_STATIC: | |
1298 | printf_filtered ( | |
c5aa993b JM |
1299 | "a thread-local variable at offset %ld from the thread base register %s", |
1300 | val, REGISTER_NAME (basereg)); | |
c906108c SS |
1301 | break; |
1302 | ||
1303 | case LOC_OPTIMIZED_OUT: | |
1304 | printf_filtered ("optimized out"); | |
1305 | break; | |
c5aa993b | 1306 | |
c906108c SS |
1307 | default: |
1308 | printf_filtered ("of unknown (botched) type"); | |
1309 | break; | |
1310 | } | |
1311 | printf_filtered (".\n"); | |
1312 | } | |
1313 | \f | |
1314 | void | |
fba45db2 | 1315 | x_command (char *exp, int from_tty) |
c906108c SS |
1316 | { |
1317 | struct expression *expr; | |
1318 | struct format_data fmt; | |
1319 | struct cleanup *old_chain; | |
1320 | struct value *val; | |
1321 | ||
1322 | fmt.format = last_format; | |
1323 | fmt.size = last_size; | |
1324 | fmt.count = 1; | |
1325 | ||
1326 | if (exp && *exp == '/') | |
1327 | { | |
1328 | exp++; | |
1329 | fmt = decode_format (&exp, last_format, last_size); | |
1330 | } | |
1331 | ||
1332 | /* If we have an expression, evaluate it and use it as the address. */ | |
1333 | ||
1334 | if (exp != 0 && *exp != 0) | |
1335 | { | |
1336 | expr = parse_expression (exp); | |
1337 | /* Cause expression not to be there any more | |
c5aa993b JM |
1338 | if this command is repeated with Newline. |
1339 | But don't clobber a user-defined command's definition. */ | |
c906108c SS |
1340 | if (from_tty) |
1341 | *exp = 0; | |
c13c43fd | 1342 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1343 | val = evaluate_expression (expr); |
1344 | if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_REF) | |
1345 | val = value_ind (val); | |
1346 | /* In rvalue contexts, such as this, functions are coerced into | |
c5aa993b | 1347 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a MS |
1348 | if (/* last_format == 'i' && */ |
1349 | TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FUNC | |
c5aa993b | 1350 | && VALUE_LVAL (val) == lval_memory) |
c906108c SS |
1351 | next_address = VALUE_ADDRESS (val); |
1352 | else | |
1aa20aa8 | 1353 | next_address = value_as_address (val); |
c906108c SS |
1354 | if (VALUE_BFD_SECTION (val)) |
1355 | next_section = VALUE_BFD_SECTION (val); | |
1356 | do_cleanups (old_chain); | |
1357 | } | |
1358 | ||
1359 | do_examine (fmt, next_address, next_section); | |
1360 | ||
1361 | /* If the examine succeeds, we remember its size and format for next time. */ | |
1362 | last_size = fmt.size; | |
1363 | last_format = fmt.format; | |
1364 | ||
1365 | /* Set a couple of internal variables if appropriate. */ | |
1366 | if (last_examine_value) | |
1367 | { | |
1368 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1369 | the correct pointer type. */ |
4478b372 JB |
1370 | struct type *pointer_type |
1371 | = lookup_pointer_type (VALUE_TYPE (last_examine_value)); | |
c906108c | 1372 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1373 | value_from_pointer (pointer_type, |
1374 | last_examine_address)); | |
c5aa993b JM |
1375 | |
1376 | /* Make contents of last address examined available to the user as $__. */ | |
c906108c SS |
1377 | /* If the last value has not been fetched from memory then don't |
1378 | fetch it now - instead mark it by voiding the $__ variable. */ | |
1379 | if (VALUE_LAZY (last_examine_value)) | |
1380 | set_internalvar (lookup_internalvar ("__"), | |
1381 | allocate_value (builtin_type_void)); | |
1382 | else | |
1383 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1384 | } | |
1385 | } | |
c906108c | 1386 | \f |
c5aa993b | 1387 | |
c906108c SS |
1388 | /* Add an expression to the auto-display chain. |
1389 | Specify the expression. */ | |
1390 | ||
1391 | static void | |
fba45db2 | 1392 | display_command (char *exp, int from_tty) |
c906108c SS |
1393 | { |
1394 | struct format_data fmt; | |
1395 | register struct expression *expr; | |
1396 | register struct display *new; | |
1397 | int display_it = 1; | |
1398 | ||
1399 | #if defined(TUI) | |
1400 | if (tui_version && *exp == '$') | |
5ecb1806 | 1401 | display_it = (tui_set_layout (exp) == TUI_FAILURE); |
c906108c SS |
1402 | #endif |
1403 | ||
1404 | if (display_it) | |
1405 | { | |
1406 | if (exp == 0) | |
1407 | { | |
1408 | do_displays (); | |
1409 | return; | |
1410 | } | |
1411 | ||
1412 | if (*exp == '/') | |
1413 | { | |
1414 | exp++; | |
1415 | fmt = decode_format (&exp, 0, 0); | |
1416 | if (fmt.size && fmt.format == 0) | |
1417 | fmt.format = 'x'; | |
1418 | if (fmt.format == 'i' || fmt.format == 's') | |
1419 | fmt.size = 'b'; | |
1420 | } | |
1421 | else | |
1422 | { | |
1423 | fmt.format = 0; | |
1424 | fmt.size = 0; | |
1425 | fmt.count = 0; | |
1426 | } | |
1427 | ||
1428 | innermost_block = 0; | |
1429 | expr = parse_expression (exp); | |
1430 | ||
1431 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1432 | ||
1433 | new->exp = expr; | |
1434 | new->block = innermost_block; | |
1435 | new->next = display_chain; | |
1436 | new->number = ++display_number; | |
1437 | new->format = fmt; | |
b5de0fa7 | 1438 | new->enabled_p = 1; |
c906108c SS |
1439 | display_chain = new; |
1440 | ||
1441 | if (from_tty && target_has_execution) | |
1442 | do_one_display (new); | |
1443 | ||
1444 | dont_repeat (); | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | static void | |
fba45db2 | 1449 | free_display (struct display *d) |
c906108c | 1450 | { |
b8c9b27d KB |
1451 | xfree (d->exp); |
1452 | xfree (d); | |
c906108c SS |
1453 | } |
1454 | ||
1455 | /* Clear out the display_chain. | |
1456 | Done when new symtabs are loaded, since this invalidates | |
1457 | the types stored in many expressions. */ | |
1458 | ||
1459 | void | |
fba45db2 | 1460 | clear_displays (void) |
c906108c SS |
1461 | { |
1462 | register struct display *d; | |
1463 | ||
1464 | while ((d = display_chain) != NULL) | |
1465 | { | |
b8c9b27d | 1466 | xfree (d->exp); |
c906108c | 1467 | display_chain = d->next; |
b8c9b27d | 1468 | xfree (d); |
c906108c SS |
1469 | } |
1470 | } | |
1471 | ||
1472 | /* Delete the auto-display number NUM. */ | |
1473 | ||
1474 | static void | |
fba45db2 | 1475 | delete_display (int num) |
c906108c SS |
1476 | { |
1477 | register struct display *d1, *d; | |
1478 | ||
1479 | if (!display_chain) | |
1480 | error ("No display number %d.", num); | |
1481 | ||
1482 | if (display_chain->number == num) | |
1483 | { | |
1484 | d1 = display_chain; | |
1485 | display_chain = d1->next; | |
1486 | free_display (d1); | |
1487 | } | |
1488 | else | |
c5aa993b | 1489 | for (d = display_chain;; d = d->next) |
c906108c SS |
1490 | { |
1491 | if (d->next == 0) | |
1492 | error ("No display number %d.", num); | |
1493 | if (d->next->number == num) | |
1494 | { | |
1495 | d1 = d->next; | |
1496 | d->next = d1->next; | |
1497 | free_display (d1); | |
1498 | break; | |
1499 | } | |
1500 | } | |
1501 | } | |
1502 | ||
1503 | /* Delete some values from the auto-display chain. | |
1504 | Specify the element numbers. */ | |
1505 | ||
1506 | static void | |
fba45db2 | 1507 | undisplay_command (char *args, int from_tty) |
c906108c SS |
1508 | { |
1509 | register char *p = args; | |
1510 | register char *p1; | |
1511 | register int num; | |
1512 | ||
1513 | if (args == 0) | |
1514 | { | |
1515 | if (query ("Delete all auto-display expressions? ")) | |
1516 | clear_displays (); | |
1517 | dont_repeat (); | |
1518 | return; | |
1519 | } | |
1520 | ||
1521 | while (*p) | |
1522 | { | |
1523 | p1 = p; | |
c5aa993b JM |
1524 | while (*p1 >= '0' && *p1 <= '9') |
1525 | p1++; | |
c906108c SS |
1526 | if (*p1 && *p1 != ' ' && *p1 != '\t') |
1527 | error ("Arguments must be display numbers."); | |
1528 | ||
1529 | num = atoi (p); | |
1530 | ||
1531 | delete_display (num); | |
1532 | ||
1533 | p = p1; | |
c5aa993b JM |
1534 | while (*p == ' ' || *p == '\t') |
1535 | p++; | |
c906108c SS |
1536 | } |
1537 | dont_repeat (); | |
1538 | } | |
1539 | ||
1540 | /* Display a single auto-display. | |
1541 | Do nothing if the display cannot be printed in the current context, | |
1542 | or if the display is disabled. */ | |
1543 | ||
1544 | static void | |
fba45db2 | 1545 | do_one_display (struct display *d) |
c906108c SS |
1546 | { |
1547 | int within_current_scope; | |
1548 | ||
b5de0fa7 | 1549 | if (d->enabled_p == 0) |
c906108c SS |
1550 | return; |
1551 | ||
1552 | if (d->block) | |
1553 | within_current_scope = contained_in (get_selected_block (), d->block); | |
1554 | else | |
1555 | within_current_scope = 1; | |
1556 | if (!within_current_scope) | |
1557 | return; | |
1558 | ||
1559 | current_display_number = d->number; | |
1560 | ||
1561 | annotate_display_begin (); | |
1562 | printf_filtered ("%d", d->number); | |
1563 | annotate_display_number_end (); | |
1564 | printf_filtered (": "); | |
1565 | if (d->format.size) | |
1566 | { | |
1567 | CORE_ADDR addr; | |
3d6d86c6 | 1568 | struct value *val; |
c906108c SS |
1569 | |
1570 | annotate_display_format (); | |
1571 | ||
1572 | printf_filtered ("x/"); | |
1573 | if (d->format.count != 1) | |
1574 | printf_filtered ("%d", d->format.count); | |
1575 | printf_filtered ("%c", d->format.format); | |
1576 | if (d->format.format != 'i' && d->format.format != 's') | |
1577 | printf_filtered ("%c", d->format.size); | |
1578 | printf_filtered (" "); | |
1579 | ||
1580 | annotate_display_expression (); | |
1581 | ||
1582 | print_expression (d->exp, gdb_stdout); | |
1583 | annotate_display_expression_end (); | |
1584 | ||
1585 | if (d->format.count != 1) | |
1586 | printf_filtered ("\n"); | |
1587 | else | |
1588 | printf_filtered (" "); | |
c5aa993b | 1589 | |
c906108c | 1590 | val = evaluate_expression (d->exp); |
1aa20aa8 | 1591 | addr = value_as_address (val); |
c906108c SS |
1592 | if (d->format.format == 'i') |
1593 | addr = ADDR_BITS_REMOVE (addr); | |
1594 | ||
1595 | annotate_display_value (); | |
1596 | ||
1597 | do_examine (d->format, addr, VALUE_BFD_SECTION (val)); | |
1598 | } | |
1599 | else | |
1600 | { | |
1601 | annotate_display_format (); | |
1602 | ||
1603 | if (d->format.format) | |
1604 | printf_filtered ("/%c ", d->format.format); | |
1605 | ||
1606 | annotate_display_expression (); | |
1607 | ||
1608 | print_expression (d->exp, gdb_stdout); | |
1609 | annotate_display_expression_end (); | |
1610 | ||
1611 | printf_filtered (" = "); | |
1612 | ||
1613 | annotate_display_expression (); | |
1614 | ||
1615 | print_formatted (evaluate_expression (d->exp), | |
2acceee2 | 1616 | d->format.format, d->format.size, gdb_stdout); |
c906108c SS |
1617 | printf_filtered ("\n"); |
1618 | } | |
1619 | ||
1620 | annotate_display_end (); | |
1621 | ||
1622 | gdb_flush (gdb_stdout); | |
1623 | current_display_number = -1; | |
1624 | } | |
1625 | ||
1626 | /* Display all of the values on the auto-display chain which can be | |
1627 | evaluated in the current scope. */ | |
1628 | ||
1629 | void | |
fba45db2 | 1630 | do_displays (void) |
c906108c SS |
1631 | { |
1632 | register struct display *d; | |
1633 | ||
1634 | for (d = display_chain; d; d = d->next) | |
1635 | do_one_display (d); | |
1636 | } | |
1637 | ||
1638 | /* Delete the auto-display which we were in the process of displaying. | |
1639 | This is done when there is an error or a signal. */ | |
1640 | ||
1641 | void | |
fba45db2 | 1642 | disable_display (int num) |
c906108c SS |
1643 | { |
1644 | register struct display *d; | |
1645 | ||
1646 | for (d = display_chain; d; d = d->next) | |
1647 | if (d->number == num) | |
1648 | { | |
b5de0fa7 | 1649 | d->enabled_p = 0; |
c906108c SS |
1650 | return; |
1651 | } | |
1652 | printf_unfiltered ("No display number %d.\n", num); | |
1653 | } | |
c5aa993b | 1654 | |
c906108c | 1655 | void |
fba45db2 | 1656 | disable_current_display (void) |
c906108c SS |
1657 | { |
1658 | if (current_display_number >= 0) | |
1659 | { | |
1660 | disable_display (current_display_number); | |
1661 | fprintf_unfiltered (gdb_stderr, "Disabling display %d to avoid infinite recursion.\n", | |
c5aa993b | 1662 | current_display_number); |
c906108c SS |
1663 | } |
1664 | current_display_number = -1; | |
1665 | } | |
1666 | ||
1667 | static void | |
fba45db2 | 1668 | display_info (char *ignore, int from_tty) |
c906108c SS |
1669 | { |
1670 | register struct display *d; | |
1671 | ||
1672 | if (!display_chain) | |
1673 | printf_unfiltered ("There are no auto-display expressions now.\n"); | |
1674 | else | |
c5aa993b | 1675 | printf_filtered ("Auto-display expressions now in effect:\n\ |
c906108c SS |
1676 | Num Enb Expression\n"); |
1677 | ||
1678 | for (d = display_chain; d; d = d->next) | |
1679 | { | |
b5de0fa7 | 1680 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1681 | if (d->format.size) |
1682 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1683 | d->format.format); |
c906108c SS |
1684 | else if (d->format.format) |
1685 | printf_filtered ("/%c ", d->format.format); | |
1686 | print_expression (d->exp, gdb_stdout); | |
1687 | if (d->block && !contained_in (get_selected_block (), d->block)) | |
1688 | printf_filtered (" (cannot be evaluated in the current context)"); | |
1689 | printf_filtered ("\n"); | |
1690 | gdb_flush (gdb_stdout); | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | static void | |
fba45db2 | 1695 | enable_display (char *args, int from_tty) |
c906108c SS |
1696 | { |
1697 | register char *p = args; | |
1698 | register char *p1; | |
1699 | register int num; | |
1700 | register struct display *d; | |
1701 | ||
1702 | if (p == 0) | |
1703 | { | |
1704 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1705 | d->enabled_p = 1; |
c906108c SS |
1706 | } |
1707 | else | |
1708 | while (*p) | |
1709 | { | |
1710 | p1 = p; | |
1711 | while (*p1 >= '0' && *p1 <= '9') | |
1712 | p1++; | |
1713 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1714 | error ("Arguments must be display numbers."); | |
c5aa993b | 1715 | |
c906108c | 1716 | num = atoi (p); |
c5aa993b | 1717 | |
c906108c SS |
1718 | for (d = display_chain; d; d = d->next) |
1719 | if (d->number == num) | |
1720 | { | |
b5de0fa7 | 1721 | d->enabled_p = 1; |
c906108c SS |
1722 | goto win; |
1723 | } | |
1724 | printf_unfiltered ("No display number %d.\n", num); | |
1725 | win: | |
1726 | p = p1; | |
1727 | while (*p == ' ' || *p == '\t') | |
1728 | p++; | |
1729 | } | |
1730 | } | |
1731 | ||
1732 | /* ARGSUSED */ | |
1733 | static void | |
fba45db2 | 1734 | disable_display_command (char *args, int from_tty) |
c906108c SS |
1735 | { |
1736 | register char *p = args; | |
1737 | register char *p1; | |
1738 | register struct display *d; | |
1739 | ||
1740 | if (p == 0) | |
1741 | { | |
1742 | for (d = display_chain; d; d = d->next) | |
b5de0fa7 | 1743 | d->enabled_p = 0; |
c906108c SS |
1744 | } |
1745 | else | |
1746 | while (*p) | |
1747 | { | |
1748 | p1 = p; | |
1749 | while (*p1 >= '0' && *p1 <= '9') | |
1750 | p1++; | |
1751 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1752 | error ("Arguments must be display numbers."); | |
c5aa993b | 1753 | |
c906108c SS |
1754 | disable_display (atoi (p)); |
1755 | ||
1756 | p = p1; | |
1757 | while (*p == ' ' || *p == '\t') | |
1758 | p++; | |
1759 | } | |
1760 | } | |
c906108c | 1761 | \f |
c5aa993b | 1762 | |
c906108c SS |
1763 | /* Print the value in stack frame FRAME of a variable |
1764 | specified by a struct symbol. */ | |
1765 | ||
1766 | void | |
fba45db2 KB |
1767 | print_variable_value (struct symbol *var, struct frame_info *frame, |
1768 | struct ui_file *stream) | |
c906108c | 1769 | { |
3d6d86c6 | 1770 | struct value *val = read_var_value (var, frame); |
c906108c SS |
1771 | |
1772 | value_print (val, stream, 0, Val_pretty_default); | |
1773 | } | |
1774 | ||
1775 | /* Print the arguments of a stack frame, given the function FUNC | |
1776 | running in that frame (as a symbol), the info on the frame, | |
1777 | and the number of args according to the stack frame (or -1 if unknown). */ | |
1778 | ||
1779 | /* References here and elsewhere to "number of args according to the | |
1780 | stack frame" appear in all cases to refer to "number of ints of args | |
1781 | according to the stack frame". At least for VAX, i386, isi. */ | |
1782 | ||
1783 | void | |
fba45db2 KB |
1784 | print_frame_args (struct symbol *func, struct frame_info *fi, int num, |
1785 | struct ui_file *stream) | |
c906108c SS |
1786 | { |
1787 | struct block *b = NULL; | |
c906108c SS |
1788 | int first = 1; |
1789 | register int i; | |
1790 | register struct symbol *sym; | |
3d6d86c6 | 1791 | struct value *val; |
c906108c SS |
1792 | /* Offset of next stack argument beyond the one we have seen that is |
1793 | at the highest offset. | |
1794 | -1 if we haven't come to a stack argument yet. */ | |
1795 | long highest_offset = -1; | |
1796 | int arg_size; | |
1797 | /* Number of ints of arguments that we have printed so far. */ | |
1798 | int args_printed = 0; | |
8b93c638 | 1799 | #ifdef UI_OUT |
d493eb33 | 1800 | struct cleanup *old_chain, *list_chain; |
8b93c638 JM |
1801 | struct ui_stream *stb; |
1802 | ||
1803 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 1804 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
8b93c638 | 1805 | #endif /* UI_OUT */ |
c906108c SS |
1806 | |
1807 | if (func) | |
1808 | { | |
1809 | b = SYMBOL_BLOCK_VALUE (func); | |
e88c90f2 | 1810 | ALL_BLOCK_SYMBOLS (b, i, sym) |
55159471 DJ |
1811 | { |
1812 | QUIT; | |
c906108c | 1813 | |
55159471 DJ |
1814 | /* Keep track of the highest stack argument offset seen, and |
1815 | skip over any kinds of symbols we don't care about. */ | |
c906108c | 1816 | |
55159471 DJ |
1817 | switch (SYMBOL_CLASS (sym)) |
1818 | { | |
1819 | case LOC_ARG: | |
1820 | case LOC_REF_ARG: | |
1821 | { | |
1822 | long current_offset = SYMBOL_VALUE (sym); | |
1823 | arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); | |
1824 | ||
1825 | /* Compute address of next argument by adding the size of | |
1826 | this argument and rounding to an int boundary. */ | |
1827 | current_offset = | |
1828 | ((current_offset + arg_size + sizeof (int) - 1) | |
1829 | & ~(sizeof (int) - 1)); | |
1830 | ||
1831 | /* If this is the highest offset seen yet, set highest_offset. */ | |
1832 | if (highest_offset == -1 | |
1833 | || (current_offset > highest_offset)) | |
1834 | highest_offset = current_offset; | |
1835 | ||
1836 | /* Add the number of ints we're about to print to args_printed. */ | |
1837 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); | |
1838 | } | |
c906108c | 1839 | |
55159471 DJ |
1840 | /* We care about types of symbols, but don't need to keep track of |
1841 | stack offsets in them. */ | |
1842 | case LOC_REGPARM: | |
1843 | case LOC_REGPARM_ADDR: | |
1844 | case LOC_LOCAL_ARG: | |
1845 | case LOC_BASEREG_ARG: | |
1846 | break; | |
c906108c | 1847 | |
55159471 DJ |
1848 | /* Other types of symbols we just skip over. */ |
1849 | default: | |
1850 | continue; | |
1851 | } | |
1852 | ||
1853 | /* We have to look up the symbol because arguments can have | |
1854 | two entries (one a parameter, one a local) and the one we | |
1855 | want is the local, which lookup_symbol will find for us. | |
1856 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1857 | small structure and gcc2 when the argument type is float | |
1858 | and it is passed as a double and converted to float by | |
1859 | the prologue (in the latter case the type of the LOC_ARG | |
1860 | symbol is double and the type of the LOC_LOCAL symbol is | |
1861 | float). */ | |
1862 | /* But if the parameter name is null, don't try it. | |
1863 | Null parameter names occur on the RS/6000, for traceback tables. | |
1864 | FIXME, should we even print them? */ | |
1865 | ||
1866 | if (*SYMBOL_NAME (sym)) | |
c906108c | 1867 | { |
55159471 DJ |
1868 | struct symbol *nsym; |
1869 | nsym = lookup_symbol | |
1870 | (SYMBOL_NAME (sym), | |
1871 | b, VAR_NAMESPACE, (int *) NULL, (struct symtab **) NULL); | |
1872 | if (SYMBOL_CLASS (nsym) == LOC_REGISTER) | |
1873 | { | |
1874 | /* There is a LOC_ARG/LOC_REGISTER pair. This means that | |
1875 | it was passed on the stack and loaded into a register, | |
1876 | or passed in a register and stored in a stack slot. | |
1877 | GDB 3.x used the LOC_ARG; GDB 4.0-4.11 used the LOC_REGISTER. | |
1878 | ||
1879 | Reasons for using the LOC_ARG: | |
1880 | (1) because find_saved_registers may be slow for remote | |
1881 | debugging, | |
1882 | (2) because registers are often re-used and stack slots | |
1883 | rarely (never?) are. Therefore using the stack slot is | |
1884 | much less likely to print garbage. | |
1885 | ||
1886 | Reasons why we might want to use the LOC_REGISTER: | |
1887 | (1) So that the backtrace prints the same value as | |
1888 | "print foo". I see no compelling reason why this needs | |
1889 | to be the case; having the backtrace print the value which | |
1890 | was passed in, and "print foo" print the value as modified | |
1891 | within the called function, makes perfect sense to me. | |
1892 | ||
1893 | Additional note: It might be nice if "info args" displayed | |
1894 | both values. | |
1895 | One more note: There is a case with sparc structure passing | |
1896 | where we need to use the LOC_REGISTER, but this is dealt with | |
1897 | by creating a single LOC_REGPARM in symbol reading. */ | |
1898 | ||
1899 | /* Leave sym (the LOC_ARG) alone. */ | |
1900 | ; | |
1901 | } | |
1902 | else | |
1903 | sym = nsym; | |
c906108c | 1904 | } |
c906108c | 1905 | |
8b93c638 | 1906 | #ifdef UI_OUT |
55159471 DJ |
1907 | /* Print the current arg. */ |
1908 | if (!first) | |
1909 | ui_out_text (uiout, ", "); | |
1910 | ui_out_wrap_hint (uiout, " "); | |
1911 | ||
1912 | annotate_arg_begin (); | |
1913 | ||
1914 | list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
1915 | fprintf_symbol_filtered (stb->stream, SYMBOL_SOURCE_NAME (sym), | |
1916 | SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI); | |
1917 | ui_out_field_stream (uiout, "name", stb); | |
1918 | annotate_arg_name_end (); | |
1919 | ui_out_text (uiout, "="); | |
8b93c638 | 1920 | #else |
55159471 DJ |
1921 | /* Print the current arg. */ |
1922 | if (!first) | |
1923 | fprintf_filtered (stream, ", "); | |
1924 | wrap_here (" "); | |
c906108c | 1925 | |
55159471 | 1926 | annotate_arg_begin (); |
c906108c | 1927 | |
55159471 DJ |
1928 | fprintf_symbol_filtered (stream, SYMBOL_SOURCE_NAME (sym), |
1929 | SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI); | |
1930 | annotate_arg_name_end (); | |
1931 | fputs_filtered ("=", stream); | |
8b93c638 | 1932 | #endif |
c906108c | 1933 | |
55159471 DJ |
1934 | /* Avoid value_print because it will deref ref parameters. We just |
1935 | want to print their addresses. Print ??? for args whose address | |
1936 | we do not know. We pass 2 as "recurse" to val_print because our | |
1937 | standard indentation here is 4 spaces, and val_print indents | |
1938 | 2 for each recurse. */ | |
1939 | val = read_var_value (sym, fi); | |
c906108c | 1940 | |
55159471 | 1941 | annotate_arg_value (val == NULL ? NULL : VALUE_TYPE (val)); |
c906108c | 1942 | |
55159471 DJ |
1943 | if (val) |
1944 | { | |
8b93c638 | 1945 | #ifdef UI_OUT |
55159471 DJ |
1946 | val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, |
1947 | VALUE_ADDRESS (val), | |
1948 | stb->stream, 0, 0, 2, Val_no_prettyprint); | |
1949 | ui_out_field_stream (uiout, "value", stb); | |
1950 | } | |
1951 | else | |
1952 | ui_out_text (uiout, "???"); | |
8b93c638 | 1953 | |
55159471 DJ |
1954 | /* Invoke ui_out_tuple_end. */ |
1955 | do_cleanups (list_chain); | |
8b93c638 | 1956 | #else |
55159471 DJ |
1957 | val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0, |
1958 | VALUE_ADDRESS (val), | |
1959 | stream, 0, 0, 2, Val_no_prettyprint); | |
1960 | } | |
1961 | else | |
1962 | fputs_filtered ("???", stream); | |
8b93c638 | 1963 | #endif |
c906108c | 1964 | |
55159471 | 1965 | annotate_arg_end (); |
c906108c | 1966 | |
55159471 DJ |
1967 | first = 0; |
1968 | } | |
c906108c SS |
1969 | } |
1970 | ||
1971 | /* Don't print nameless args in situations where we don't know | |
1972 | enough about the stack to find them. */ | |
1973 | if (num != -1) | |
1974 | { | |
1975 | long start; | |
1976 | ||
1977 | if (highest_offset == -1) | |
1978 | start = FRAME_ARGS_SKIP; | |
1979 | else | |
1980 | start = highest_offset; | |
1981 | ||
1982 | print_frame_nameless_args (fi, start, num - args_printed, | |
1983 | first, stream); | |
1984 | } | |
8b93c638 JM |
1985 | #ifdef UI_OUT |
1986 | do_cleanups (old_chain); | |
1987 | #endif /* no UI_OUT */ | |
c906108c SS |
1988 | } |
1989 | ||
1990 | /* Print nameless args on STREAM. | |
1991 | FI is the frameinfo for this frame, START is the offset | |
1992 | of the first nameless arg, and NUM is the number of nameless args to | |
1993 | print. FIRST is nonzero if this is the first argument (not just | |
1994 | the first nameless arg). */ | |
1995 | ||
1996 | static void | |
fba45db2 KB |
1997 | print_frame_nameless_args (struct frame_info *fi, long start, int num, |
1998 | int first, struct ui_file *stream) | |
c906108c SS |
1999 | { |
2000 | int i; | |
2001 | CORE_ADDR argsaddr; | |
2002 | long arg_value; | |
2003 | ||
2004 | for (i = 0; i < num; i++) | |
2005 | { | |
2006 | QUIT; | |
2007 | #ifdef NAMELESS_ARG_VALUE | |
2008 | NAMELESS_ARG_VALUE (fi, start, &arg_value); | |
2009 | #else | |
2010 | argsaddr = FRAME_ARGS_ADDRESS (fi); | |
2011 | if (!argsaddr) | |
2012 | return; | |
2013 | ||
2014 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
2015 | #endif | |
2016 | ||
2017 | if (!first) | |
2018 | fprintf_filtered (stream, ", "); | |
2019 | ||
2020 | #ifdef PRINT_NAMELESS_INTEGER | |
2021 | PRINT_NAMELESS_INTEGER (stream, arg_value); | |
2022 | #else | |
2023 | #ifdef PRINT_TYPELESS_INTEGER | |
2024 | PRINT_TYPELESS_INTEGER (stream, builtin_type_int, (LONGEST) arg_value); | |
2025 | #else | |
2026 | fprintf_filtered (stream, "%ld", arg_value); | |
2027 | #endif /* PRINT_TYPELESS_INTEGER */ | |
2028 | #endif /* PRINT_NAMELESS_INTEGER */ | |
2029 | first = 0; | |
2030 | start += sizeof (int); | |
2031 | } | |
2032 | } | |
2033 | \f | |
2034 | /* ARGSUSED */ | |
2035 | static void | |
fba45db2 | 2036 | printf_command (char *arg, int from_tty) |
c906108c SS |
2037 | { |
2038 | register char *f = NULL; | |
2039 | register char *s = arg; | |
2040 | char *string = NULL; | |
3d6d86c6 | 2041 | struct value **val_args; |
c906108c SS |
2042 | char *substrings; |
2043 | char *current_substring; | |
2044 | int nargs = 0; | |
2045 | int allocated_args = 20; | |
2046 | struct cleanup *old_cleanups; | |
2047 | ||
f976f6d4 AC |
2048 | val_args = (struct value **) xmalloc (allocated_args |
2049 | * sizeof (struct value *)); | |
c13c43fd | 2050 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2051 | |
2052 | if (s == 0) | |
2053 | error_no_arg ("format-control string and values to print"); | |
2054 | ||
2055 | /* Skip white space before format string */ | |
c5aa993b JM |
2056 | while (*s == ' ' || *s == '\t') |
2057 | s++; | |
c906108c SS |
2058 | |
2059 | /* A format string should follow, enveloped in double quotes */ | |
2060 | if (*s++ != '"') | |
2061 | error ("Bad format string, missing '\"'."); | |
2062 | ||
2063 | /* Parse the format-control string and copy it into the string STRING, | |
2064 | processing some kinds of escape sequence. */ | |
2065 | ||
2066 | f = string = (char *) alloca (strlen (s) + 1); | |
2067 | ||
2068 | while (*s != '"') | |
2069 | { | |
2070 | int c = *s++; | |
2071 | switch (c) | |
2072 | { | |
2073 | case '\0': | |
2074 | error ("Bad format string, non-terminated '\"'."); | |
2075 | ||
2076 | case '\\': | |
2077 | switch (c = *s++) | |
2078 | { | |
2079 | case '\\': | |
2080 | *f++ = '\\'; | |
2081 | break; | |
2082 | case 'a': | |
c906108c | 2083 | *f++ = '\a'; |
c906108c SS |
2084 | break; |
2085 | case 'b': | |
2086 | *f++ = '\b'; | |
2087 | break; | |
2088 | case 'f': | |
2089 | *f++ = '\f'; | |
2090 | break; | |
2091 | case 'n': | |
2092 | *f++ = '\n'; | |
2093 | break; | |
2094 | case 'r': | |
2095 | *f++ = '\r'; | |
2096 | break; | |
2097 | case 't': | |
2098 | *f++ = '\t'; | |
2099 | break; | |
2100 | case 'v': | |
2101 | *f++ = '\v'; | |
2102 | break; | |
2103 | case '"': | |
2104 | *f++ = '"'; | |
2105 | break; | |
2106 | default: | |
2107 | /* ??? TODO: handle other escape sequences */ | |
2108 | error ("Unrecognized escape character \\%c in format string.", | |
2109 | c); | |
2110 | } | |
2111 | break; | |
2112 | ||
2113 | default: | |
2114 | *f++ = c; | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* Skip over " and following space and comma. */ | |
2119 | s++; | |
2120 | *f++ = '\0'; | |
c5aa993b JM |
2121 | while (*s == ' ' || *s == '\t') |
2122 | s++; | |
c906108c SS |
2123 | |
2124 | if (*s != ',' && *s != 0) | |
2125 | error ("Invalid argument syntax"); | |
2126 | ||
c5aa993b JM |
2127 | if (*s == ',') |
2128 | s++; | |
2129 | while (*s == ' ' || *s == '\t') | |
2130 | s++; | |
c906108c SS |
2131 | |
2132 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2133 | substrings = alloca (strlen (string) * 2); | |
2134 | current_substring = substrings; | |
2135 | ||
2136 | { | |
2137 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2138 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2139 | something of the right size. */ | |
2140 | ||
c5aa993b JM |
2141 | enum argclass |
2142 | { | |
2143 | no_arg, int_arg, string_arg, double_arg, long_long_arg | |
2144 | }; | |
c906108c SS |
2145 | enum argclass *argclass; |
2146 | enum argclass this_argclass; | |
2147 | char *last_arg; | |
2148 | int nargs_wanted; | |
2149 | int lcount; | |
2150 | int i; | |
2151 | ||
2152 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2153 | nargs_wanted = 0; | |
2154 | f = string; | |
2155 | last_arg = string; | |
2156 | while (*f) | |
2157 | if (*f++ == '%') | |
2158 | { | |
2159 | lcount = 0; | |
c5aa993b | 2160 | while (strchr ("0123456789.hlL-+ #", *f)) |
c906108c SS |
2161 | { |
2162 | if (*f == 'l' || *f == 'L') | |
2163 | lcount++; | |
2164 | f++; | |
2165 | } | |
2166 | switch (*f) | |
2167 | { | |
2168 | case 's': | |
2169 | this_argclass = string_arg; | |
2170 | break; | |
2171 | ||
2172 | case 'e': | |
2173 | case 'f': | |
2174 | case 'g': | |
2175 | this_argclass = double_arg; | |
2176 | break; | |
2177 | ||
2178 | case '*': | |
2179 | error ("`*' not supported for precision or width in printf"); | |
2180 | ||
2181 | case 'n': | |
2182 | error ("Format specifier `n' not supported in printf"); | |
2183 | ||
2184 | case '%': | |
2185 | this_argclass = no_arg; | |
2186 | break; | |
2187 | ||
2188 | default: | |
2189 | if (lcount > 1) | |
2190 | this_argclass = long_long_arg; | |
2191 | else | |
2192 | this_argclass = int_arg; | |
2193 | break; | |
2194 | } | |
2195 | f++; | |
2196 | if (this_argclass != no_arg) | |
2197 | { | |
2198 | strncpy (current_substring, last_arg, f - last_arg); | |
2199 | current_substring += f - last_arg; | |
2200 | *current_substring++ = '\0'; | |
2201 | last_arg = f; | |
2202 | argclass[nargs_wanted++] = this_argclass; | |
2203 | } | |
2204 | } | |
2205 | ||
2206 | /* Now, parse all arguments and evaluate them. | |
2207 | Store the VALUEs in VAL_ARGS. */ | |
2208 | ||
2209 | while (*s != '\0') | |
2210 | { | |
2211 | char *s1; | |
2212 | if (nargs == allocated_args) | |
f976f6d4 AC |
2213 | val_args = (struct value **) xrealloc ((char *) val_args, |
2214 | (allocated_args *= 2) | |
2215 | * sizeof (struct value *)); | |
c906108c SS |
2216 | s1 = s; |
2217 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2218 | |
c906108c SS |
2219 | /* If format string wants a float, unchecked-convert the value to |
2220 | floating point of the same size */ | |
c5aa993b | 2221 | |
c906108c SS |
2222 | if (argclass[nargs] == double_arg) |
2223 | { | |
2224 | struct type *type = VALUE_TYPE (val_args[nargs]); | |
2225 | if (TYPE_LENGTH (type) == sizeof (float)) | |
c5aa993b | 2226 | VALUE_TYPE (val_args[nargs]) = builtin_type_float; |
c906108c | 2227 | if (TYPE_LENGTH (type) == sizeof (double)) |
c5aa993b | 2228 | VALUE_TYPE (val_args[nargs]) = builtin_type_double; |
c906108c SS |
2229 | } |
2230 | nargs++; | |
2231 | s = s1; | |
2232 | if (*s == ',') | |
2233 | s++; | |
2234 | } | |
c5aa993b | 2235 | |
c906108c SS |
2236 | if (nargs != nargs_wanted) |
2237 | error ("Wrong number of arguments for specified format-string"); | |
2238 | ||
2239 | /* Now actually print them. */ | |
2240 | current_substring = substrings; | |
2241 | for (i = 0; i < nargs; i++) | |
2242 | { | |
2243 | switch (argclass[i]) | |
2244 | { | |
2245 | case string_arg: | |
2246 | { | |
2247 | char *str; | |
2248 | CORE_ADDR tem; | |
2249 | int j; | |
1aa20aa8 | 2250 | tem = value_as_address (val_args[i]); |
c906108c SS |
2251 | |
2252 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2253 | for (j = 0;; j++) |
c906108c SS |
2254 | { |
2255 | char c; | |
2256 | QUIT; | |
d4b2399a | 2257 | read_memory (tem + j, &c, 1); |
c906108c SS |
2258 | if (c == 0) |
2259 | break; | |
2260 | } | |
2261 | ||
2262 | /* Copy the string contents into a string inside GDB. */ | |
2263 | str = (char *) alloca (j + 1); | |
7b92f6e1 MS |
2264 | if (j != 0) |
2265 | read_memory (tem, str, j); | |
c906108c SS |
2266 | str[j] = 0; |
2267 | ||
2268 | printf_filtered (current_substring, str); | |
2269 | } | |
2270 | break; | |
2271 | case double_arg: | |
2272 | { | |
2273 | double val = value_as_double (val_args[i]); | |
2274 | printf_filtered (current_substring, val); | |
2275 | break; | |
2276 | } | |
2277 | case long_long_arg: | |
2278 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2279 | { | |
2280 | long long val = value_as_long (val_args[i]); | |
2281 | printf_filtered (current_substring, val); | |
2282 | break; | |
2283 | } | |
2284 | #else | |
2285 | error ("long long not supported in printf"); | |
2286 | #endif | |
2287 | case int_arg: | |
2288 | { | |
2289 | /* FIXME: there should be separate int_arg and long_arg. */ | |
2290 | long val = value_as_long (val_args[i]); | |
2291 | printf_filtered (current_substring, val); | |
2292 | break; | |
2293 | } | |
c5aa993b JM |
2294 | default: /* purecov: deadcode */ |
2295 | error ("internal error in printf_command"); /* purecov: deadcode */ | |
c906108c SS |
2296 | } |
2297 | /* Skip to the next substring. */ | |
2298 | current_substring += strlen (current_substring) + 1; | |
2299 | } | |
2300 | /* Print the portion of the format string after the last argument. */ | |
2301 | printf_filtered (last_arg); | |
2302 | } | |
2303 | do_cleanups (old_cleanups); | |
2304 | } | |
2305 | \f | |
2306 | /* Dump a specified section of assembly code. With no command line | |
2307 | arguments, this command will dump the assembly code for the | |
2308 | function surrounding the pc value in the selected frame. With one | |
2309 | argument, it will dump the assembly code surrounding that pc value. | |
2310 | Two arguments are interpeted as bounds within which to dump | |
2311 | assembly. */ | |
2312 | ||
2313 | /* ARGSUSED */ | |
2314 | static void | |
fba45db2 | 2315 | disassemble_command (char *arg, int from_tty) |
c906108c SS |
2316 | { |
2317 | CORE_ADDR low, high; | |
2318 | char *name; | |
2319 | CORE_ADDR pc, pc_masked; | |
2320 | char *space_index; | |
2321 | #if 0 | |
2322 | asection *section; | |
2323 | #endif | |
2324 | ||
2325 | name = NULL; | |
2326 | if (!arg) | |
2327 | { | |
2328 | if (!selected_frame) | |
2329 | error ("No frame selected.\n"); | |
2330 | ||
2331 | pc = get_frame_pc (selected_frame); | |
2332 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
2333 | error ("No function contains program counter for selected frame.\n"); | |
2334 | #if defined(TUI) | |
2335 | else if (tui_version) | |
5ecb1806 | 2336 | low = tuiGetLowDisassemblyAddress (low, pc); |
c906108c SS |
2337 | #endif |
2338 | low += FUNCTION_START_OFFSET; | |
2339 | } | |
2340 | else if (!(space_index = (char *) strchr (arg, ' '))) | |
2341 | { | |
2342 | /* One argument. */ | |
2343 | pc = parse_and_eval_address (arg); | |
2344 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) | |
2345 | error ("No function contains specified address.\n"); | |
2346 | #if defined(TUI) | |
2347 | else if (tui_version) | |
5ecb1806 | 2348 | low = tuiGetLowDisassemblyAddress (low, pc); |
c906108c SS |
2349 | #endif |
2350 | #if 0 | |
2351 | if (overlay_debugging) | |
2352 | { | |
2353 | section = find_pc_overlay (pc); | |
2354 | if (pc_in_unmapped_range (pc, section)) | |
2355 | { | |
2356 | /* find_pc_partial_function will have returned low and high | |
c5aa993b JM |
2357 | relative to the symbolic (mapped) address range. Need to |
2358 | translate them back to the unmapped range where PC is. */ | |
2359 | low = overlay_unmapped_address (low, section); | |
c906108c SS |
2360 | high = overlay_unmapped_address (high, section); |
2361 | } | |
2362 | } | |
2363 | #endif | |
2364 | low += FUNCTION_START_OFFSET; | |
2365 | } | |
2366 | else | |
2367 | { | |
2368 | /* Two arguments. */ | |
2369 | *space_index = '\0'; | |
2370 | low = parse_and_eval_address (arg); | |
2371 | high = parse_and_eval_address (space_index + 1); | |
2372 | } | |
2373 | ||
2374 | #if defined(TUI) | |
5ecb1806 | 2375 | if (!tui_is_window_visible (DISASSEM_WIN)) |
c906108c SS |
2376 | #endif |
2377 | { | |
2378 | printf_filtered ("Dump of assembler code "); | |
2379 | if (name != NULL) | |
2380 | { | |
2381 | printf_filtered ("for function %s:\n", name); | |
2382 | } | |
2383 | else | |
2384 | { | |
2385 | printf_filtered ("from "); | |
2386 | print_address_numeric (low, 1, gdb_stdout); | |
2387 | printf_filtered (" to "); | |
2388 | print_address_numeric (high, 1, gdb_stdout); | |
2389 | printf_filtered (":\n"); | |
2390 | } | |
2391 | ||
2392 | /* Dump the specified range. */ | |
2393 | pc = low; | |
2394 | ||
2395 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
2396 | pc_masked = GDB_TARGET_MASK_DISAS_PC (pc); | |
2397 | #else | |
2398 | pc_masked = pc; | |
2399 | #endif | |
2400 | ||
2401 | while (pc_masked < high) | |
2402 | { | |
2403 | QUIT; | |
2404 | print_address (pc_masked, gdb_stdout); | |
2405 | printf_filtered (":\t"); | |
2406 | /* We often wrap here if there are long symbolic names. */ | |
2407 | wrap_here (" "); | |
2408 | pc += print_insn (pc, gdb_stdout); | |
2409 | printf_filtered ("\n"); | |
2410 | ||
2411 | #ifdef GDB_TARGET_MASK_DISAS_PC | |
2412 | pc_masked = GDB_TARGET_MASK_DISAS_PC (pc); | |
2413 | #else | |
2414 | pc_masked = pc; | |
2415 | #endif | |
2416 | } | |
2417 | printf_filtered ("End of assembler dump.\n"); | |
2418 | gdb_flush (gdb_stdout); | |
2419 | } | |
2420 | #if defined(TUI) | |
2421 | else | |
2422 | { | |
5ecb1806 | 2423 | tui_show_assembly (low); |
c906108c SS |
2424 | } |
2425 | #endif | |
2426 | } | |
2427 | ||
2428 | /* Print the instruction at address MEMADDR in debugged memory, | |
2429 | on STREAM. Returns length of the instruction, in bytes. */ | |
2430 | ||
2431 | static int | |
fba45db2 | 2432 | print_insn (CORE_ADDR memaddr, struct ui_file *stream) |
c906108c | 2433 | { |
d7449b42 | 2434 | if (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG) |
c906108c SS |
2435 | TARGET_PRINT_INSN_INFO->endian = BFD_ENDIAN_BIG; |
2436 | else | |
2437 | TARGET_PRINT_INSN_INFO->endian = BFD_ENDIAN_LITTLE; | |
2438 | ||
2439 | if (TARGET_ARCHITECTURE != NULL) | |
2440 | TARGET_PRINT_INSN_INFO->mach = TARGET_ARCHITECTURE->mach; | |
2441 | /* else: should set .mach=0 but some disassemblers don't grok this */ | |
2442 | ||
99a6d8ba KS |
2443 | TARGET_PRINT_INSN_INFO->stream = stream; |
2444 | ||
c906108c SS |
2445 | return TARGET_PRINT_INSN (memaddr, TARGET_PRINT_INSN_INFO); |
2446 | } | |
c906108c | 2447 | \f |
c5aa993b | 2448 | |
c906108c | 2449 | void |
fba45db2 | 2450 | _initialize_printcmd (void) |
c906108c | 2451 | { |
c94fdfd0 EZ |
2452 | struct cmd_list_element *c; |
2453 | ||
c906108c SS |
2454 | current_display_number = -1; |
2455 | ||
2456 | add_info ("address", address_info, | |
c5aa993b | 2457 | "Describe where symbol SYM is stored."); |
c906108c | 2458 | |
c5aa993b | 2459 | add_info ("symbol", sym_info, |
c906108c SS |
2460 | "Describe what symbol is at location ADDR.\n\ |
2461 | Only for symbols with fixed locations (global or static scope)."); | |
2462 | ||
2463 | add_com ("x", class_vars, x_command, | |
2464 | concat ("Examine memory: x/FMT ADDRESS.\n\ | |
2465 | ADDRESS is an expression for the memory address to examine.\n\ | |
2466 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2467 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
2468 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n", | |
c5aa993b | 2469 | "Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ |
c906108c SS |
2470 | The specified number of objects of the specified size are printed\n\ |
2471 | according to the format.\n\n\ | |
2472 | Defaults for format and size letters are those previously used.\n\ | |
2473 | Default count is 1. Default address is following last thing printed\n\ | |
2474 | with this command or \"print\".", NULL)); | |
2475 | ||
c94fdfd0 EZ |
2476 | c = add_com ("disassemble", class_vars, disassemble_command, |
2477 | "Disassemble a specified section of memory.\n\ | |
c906108c SS |
2478 | Default is the function surrounding the pc of the selected frame.\n\ |
2479 | With a single argument, the function surrounding that address is dumped.\n\ | |
2480 | Two arguments are taken as a range of memory to dump."); | |
c94fdfd0 | 2481 | c->completer = location_completer; |
c906108c | 2482 | if (xdb_commands) |
c5aa993b | 2483 | add_com_alias ("va", "disassemble", class_xdb, 0); |
c906108c SS |
2484 | |
2485 | #if 0 | |
2486 | add_com ("whereis", class_vars, whereis_command, | |
2487 | "Print line number and file of definition of variable."); | |
2488 | #endif | |
c5aa993b | 2489 | |
c906108c SS |
2490 | add_info ("display", display_info, |
2491 | "Expressions to display when program stops, with code numbers."); | |
2492 | ||
2493 | add_cmd ("undisplay", class_vars, undisplay_command, | |
2494 | "Cancel some expressions to be displayed when program stops.\n\ | |
2495 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2496 | No argument means cancel all automatic-display expressions.\n\ | |
2497 | \"delete display\" has the same effect as this command.\n\ | |
2498 | Do \"info display\" to see current list of code numbers.", | |
c5aa993b | 2499 | &cmdlist); |
c906108c SS |
2500 | |
2501 | add_com ("display", class_vars, display_command, | |
2502 | "Print value of expression EXP each time the program stops.\n\ | |
2503 | /FMT may be used before EXP as in the \"print\" command.\n\ | |
2504 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2505 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2506 | and examining is done as in the \"x\" command.\n\n\ | |
2507 | With no argument, display all currently requested auto-display expressions.\n\ | |
2508 | Use \"undisplay\" to cancel display requests previously made." | |
c5aa993b | 2509 | ); |
c906108c | 2510 | |
c5aa993b | 2511 | add_cmd ("display", class_vars, enable_display, |
c906108c SS |
2512 | "Enable some expressions to be displayed when program stops.\n\ |
2513 | Arguments are the code numbers of the expressions to resume displaying.\n\ | |
2514 | No argument means enable all automatic-display expressions.\n\ | |
2515 | Do \"info display\" to see current list of code numbers.", &enablelist); | |
2516 | ||
c5aa993b | 2517 | add_cmd ("display", class_vars, disable_display_command, |
c906108c SS |
2518 | "Disable some expressions to be displayed when program stops.\n\ |
2519 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2520 | No argument means disable all automatic-display expressions.\n\ | |
2521 | Do \"info display\" to see current list of code numbers.", &disablelist); | |
2522 | ||
c5aa993b | 2523 | add_cmd ("display", class_vars, undisplay_command, |
c906108c SS |
2524 | "Cancel some expressions to be displayed when program stops.\n\ |
2525 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
2526 | No argument means cancel all automatic-display expressions.\n\ | |
2527 | Do \"info display\" to see current list of code numbers.", &deletelist); | |
2528 | ||
2529 | add_com ("printf", class_vars, printf_command, | |
c5aa993b | 2530 | "printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ |
c906108c SS |
2531 | This is useful for formatted output in user-defined commands."); |
2532 | ||
2533 | add_com ("output", class_vars, output_command, | |
2534 | "Like \"print\" but don't put in value history and don't print newline.\n\ | |
2535 | This is useful in user-defined commands."); | |
2536 | ||
2537 | add_prefix_cmd ("set", class_vars, set_command, | |
c5aa993b | 2538 | concat ("Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
c906108c SS |
2539 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2540 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2541 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2542 | variable in the program being debugged. EXP is any valid expression.\n", | |
c5aa993b | 2543 | "Use \"set variable\" for variables with names identical to set subcommands.\n\ |
c906108c SS |
2544 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
2545 | You can see these environment settings with the \"show\" command.", NULL), | |
c5aa993b | 2546 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2547 | if (dbx_commands) |
c5aa993b | 2548 | add_com ("assign", class_vars, set_command, concat ("Evaluate expression \ |
c906108c SS |
2549 | EXP and assign result to variable VAR, using assignment\n\ |
2550 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2551 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2552 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2553 | variable in the program being debugged. EXP is any valid expression.\n", | |
c5aa993b | 2554 | "Use \"set variable\" for variables with names identical to set subcommands.\n\ |
c906108c SS |
2555 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
2556 | You can see these environment settings with the \"show\" command.", NULL)); | |
2557 | ||
2558 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
c94fdfd0 EZ |
2559 | c = add_com ("call", class_vars, call_command, |
2560 | "Call a function in the program.\n\ | |
c906108c SS |
2561 | The argument is the function name and arguments, in the notation of the\n\ |
2562 | current working language. The result is printed and saved in the value\n\ | |
2563 | history, if it is not void."); | |
c94fdfd0 | 2564 | c->completer = location_completer; |
c906108c SS |
2565 | |
2566 | add_cmd ("variable", class_vars, set_command, | |
c5aa993b | 2567 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
c906108c SS |
2568 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2569 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2570 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2571 | variable in the program being debugged. EXP is any valid expression.\n\ | |
2572 | This may usually be abbreviated to simply \"set\".", | |
c5aa993b | 2573 | &setlist); |
c906108c | 2574 | |
c94fdfd0 | 2575 | c = add_com ("print", class_vars, print_command, |
c906108c SS |
2576 | concat ("Print value of expression EXP.\n\ |
2577 | Variables accessible are those of the lexical environment of the selected\n\ | |
2578 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2579 | \n\ | |
2580 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2581 | $$NUM refers to NUM'th value back from the last one.\n\ | |
2582 | Names starting with $ refer to registers (with the values they would have\n", | |
c5aa993b | 2583 | "if the program were to return to the stack frame now selected, restoring\n\ |
c906108c SS |
2584 | all registers saved by frames farther in) or else to debugger\n\ |
2585 | \"convenience\" variables (any such name not a known register).\n\ | |
2586 | Use assignment expressions to give values to convenience variables.\n", | |
2587 | "\n\ | |
2588 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ | |
2589 | @ is a binary operator for treating consecutive data objects\n\ | |
2590 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2591 | element is FOO, whose second element is stored in the space following\n\ | |
2592 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
2593 | resides in memory.\n", | |
2594 | "\n\ | |
2595 | EXP may be preceded with /FMT, where FMT is a format letter\n\ | |
2596 | but no count or size letter (see \"x\" command).", NULL)); | |
c94fdfd0 | 2597 | c->completer = location_completer; |
c906108c SS |
2598 | add_com_alias ("p", "print", class_vars, 1); |
2599 | ||
c94fdfd0 | 2600 | c = add_com ("inspect", class_vars, inspect_command, |
c5aa993b | 2601 | "Same as \"print\" command, except that if you are running in the epoch\n\ |
c906108c | 2602 | environment, the value is printed in its own window."); |
c94fdfd0 | 2603 | c->completer = location_completer; |
c906108c SS |
2604 | |
2605 | add_show_from_set ( | |
c5aa993b JM |
2606 | add_set_cmd ("max-symbolic-offset", no_class, var_uinteger, |
2607 | (char *) &max_symbolic_offset, | |
2608 | "Set the largest offset that will be printed in <symbol+1234> form.", | |
2609 | &setprintlist), | |
2610 | &showprintlist); | |
c906108c | 2611 | add_show_from_set ( |
c5aa993b JM |
2612 | add_set_cmd ("symbol-filename", no_class, var_boolean, |
2613 | (char *) &print_symbol_filename, | |
2614 | "Set printing of source filename and line number with <symbol>.", | |
2615 | &setprintlist), | |
2616 | &showprintlist); | |
c906108c SS |
2617 | |
2618 | /* For examine/instruction a single byte quantity is specified as | |
2619 | the data. This avoids problems with value_at_lazy() requiring a | |
2620 | valid data type (and rejecting VOID). */ | |
2621 | examine_i_type = init_type (TYPE_CODE_INT, 1, 0, "examine_i_type", NULL); | |
2622 | ||
2623 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, "examine_b_type", NULL); | |
2624 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, "examine_h_type", NULL); | |
2625 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, "examine_w_type", NULL); | |
2626 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, "examine_g_type", NULL); | |
2627 | ||
2628 | } |