Commit | Line | Data |
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c906108c | 1 | /* Print values for GNU debugger GDB. |
e2ad119d | 2 | |
0b302171 | 3 | Copyright (C) 1986-2012 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "gdb_string.h" | |
22 | #include "frame.h" | |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "value.h" | |
26 | #include "language.h" | |
27 | #include "expression.h" | |
28 | #include "gdbcore.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "target.h" | |
31 | #include "breakpoint.h" | |
32 | #include "demangle.h" | |
50f182aa | 33 | #include "gdb-demangle.h" |
c906108c SS |
34 | #include "valprint.h" |
35 | #include "annotate.h" | |
c5aa993b JM |
36 | #include "symfile.h" /* for overlay functions */ |
37 | #include "objfiles.h" /* ditto */ | |
c94fdfd0 | 38 | #include "completer.h" /* for completion functions */ |
8b93c638 | 39 | #include "ui-out.h" |
261397f8 | 40 | #include "gdb_assert.h" |
fe898f56 | 41 | #include "block.h" |
92bf2b80 | 42 | #include "disasm.h" |
1a619819 | 43 | #include "dfp.h" |
79a45b7d | 44 | #include "valprint.h" |
a3247a22 PP |
45 | #include "exceptions.h" |
46 | #include "observer.h" | |
47 | #include "solist.h" | |
a3247a22 | 48 | #include "parser-defs.h" |
6c7a06a3 | 49 | #include "charset.h" |
704e9165 | 50 | #include "arch-utils.h" |
e9cafbcc | 51 | #include "cli/cli-utils.h" |
c906108c | 52 | |
6a83354a | 53 | #ifdef TUI |
0df8b418 | 54 | #include "tui/tui.h" /* For tui_active et al. */ |
6a83354a AC |
55 | #endif |
56 | ||
06be140c | 57 | #if defined(__MINGW32__) && !defined(PRINTF_HAS_LONG_LONG) |
09d71d23 AS |
58 | # define USE_PRINTF_I64 1 |
59 | # define PRINTF_HAS_LONG_LONG | |
60 | #else | |
61 | # define USE_PRINTF_I64 0 | |
62 | #endif | |
63 | ||
c906108c | 64 | struct format_data |
c5aa993b JM |
65 | { |
66 | int count; | |
67 | char format; | |
68 | char size; | |
a6bac58e TT |
69 | |
70 | /* True if the value should be printed raw -- that is, bypassing | |
71 | python-based formatters. */ | |
72 | unsigned char raw; | |
c5aa993b | 73 | }; |
c906108c SS |
74 | |
75 | /* Last specified output format. */ | |
76 | ||
a6bac58e | 77 | static char last_format = 0; |
c906108c SS |
78 | |
79 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
80 | ||
81 | static char last_size = 'w'; | |
82 | ||
5d3729b5 | 83 | /* Default address to examine next, and associated architecture. */ |
c906108c | 84 | |
5d3729b5 | 85 | static struct gdbarch *next_gdbarch; |
c906108c SS |
86 | static CORE_ADDR next_address; |
87 | ||
a4642986 MR |
88 | /* Number of delay instructions following current disassembled insn. */ |
89 | ||
90 | static int branch_delay_insns; | |
91 | ||
c906108c SS |
92 | /* Last address examined. */ |
93 | ||
94 | static CORE_ADDR last_examine_address; | |
95 | ||
96 | /* Contents of last address examined. | |
97 | This is not valid past the end of the `x' command! */ | |
98 | ||
3d6d86c6 | 99 | static struct value *last_examine_value; |
c906108c SS |
100 | |
101 | /* Largest offset between a symbolic value and an address, that will be | |
102 | printed as `0x1234 <symbol+offset>'. */ | |
103 | ||
104 | static unsigned int max_symbolic_offset = UINT_MAX; | |
920d2a44 AC |
105 | static void |
106 | show_max_symbolic_offset (struct ui_file *file, int from_tty, | |
107 | struct cmd_list_element *c, const char *value) | |
108 | { | |
3e43a32a MS |
109 | fprintf_filtered (file, |
110 | _("The largest offset that will be " | |
111 | "printed in <symbol+1234> form is %s.\n"), | |
920d2a44 AC |
112 | value); |
113 | } | |
c906108c SS |
114 | |
115 | /* Append the source filename and linenumber of the symbol when | |
116 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
117 | static int print_symbol_filename = 0; | |
920d2a44 AC |
118 | static void |
119 | show_print_symbol_filename (struct ui_file *file, int from_tty, | |
120 | struct cmd_list_element *c, const char *value) | |
121 | { | |
3e43a32a MS |
122 | fprintf_filtered (file, _("Printing of source filename and " |
123 | "line number with <symbol> is %s.\n"), | |
920d2a44 AC |
124 | value); |
125 | } | |
c906108c SS |
126 | |
127 | /* Number of auto-display expression currently being displayed. | |
9d8fa392 | 128 | So that we can disable it if we get a signal within it. |
c906108c SS |
129 | -1 when not doing one. */ |
130 | ||
131 | int current_display_number; | |
132 | ||
c906108c | 133 | struct display |
c5aa993b JM |
134 | { |
135 | /* Chain link to next auto-display item. */ | |
136 | struct display *next; | |
6c95b8df | 137 | |
fa8a61dc TT |
138 | /* The expression as the user typed it. */ |
139 | char *exp_string; | |
6c95b8df | 140 | |
c5aa993b JM |
141 | /* Expression to be evaluated and displayed. */ |
142 | struct expression *exp; | |
6c95b8df | 143 | |
c5aa993b JM |
144 | /* Item number of this auto-display item. */ |
145 | int number; | |
6c95b8df | 146 | |
c5aa993b JM |
147 | /* Display format specified. */ |
148 | struct format_data format; | |
6c95b8df PA |
149 | |
150 | /* Program space associated with `block'. */ | |
151 | struct program_space *pspace; | |
152 | ||
0df8b418 | 153 | /* Innermost block required by this expression when evaluated. */ |
c5aa993b | 154 | struct block *block; |
6c95b8df | 155 | |
0df8b418 | 156 | /* Status of this display (enabled or disabled). */ |
b5de0fa7 | 157 | int enabled_p; |
c5aa993b | 158 | }; |
c906108c SS |
159 | |
160 | /* Chain of expressions whose values should be displayed | |
161 | automatically each time the program stops. */ | |
162 | ||
163 | static struct display *display_chain; | |
164 | ||
165 | static int display_number; | |
166 | ||
c9174737 PA |
167 | /* Walk the following statement or block through all displays. |
168 | ALL_DISPLAYS_SAFE does so even if the statement deletes the current | |
169 | display. */ | |
3c3fe74c PA |
170 | |
171 | #define ALL_DISPLAYS(B) \ | |
172 | for (B = display_chain; B; B = B->next) | |
173 | ||
c9174737 PA |
174 | #define ALL_DISPLAYS_SAFE(B,TMP) \ |
175 | for (B = display_chain; \ | |
176 | B ? (TMP = B->next, 1): 0; \ | |
177 | B = TMP) | |
178 | ||
0df8b418 | 179 | /* Prototypes for exported functions. */ |
c906108c | 180 | |
a14ed312 | 181 | void output_command (char *, int); |
c906108c | 182 | |
a14ed312 | 183 | void _initialize_printcmd (void); |
c906108c | 184 | |
0df8b418 | 185 | /* Prototypes for local functions. */ |
c906108c | 186 | |
a14ed312 | 187 | static void do_one_display (struct display *); |
c906108c | 188 | \f |
c5aa993b | 189 | |
c906108c SS |
190 | /* Decode a format specification. *STRING_PTR should point to it. |
191 | OFORMAT and OSIZE are used as defaults for the format and size | |
192 | if none are given in the format specification. | |
193 | If OSIZE is zero, then the size field of the returned value | |
194 | should be set only if a size is explicitly specified by the | |
195 | user. | |
196 | The structure returned describes all the data | |
197 | found in the specification. In addition, *STRING_PTR is advanced | |
198 | past the specification and past all whitespace following it. */ | |
199 | ||
200 | static struct format_data | |
fba45db2 | 201 | decode_format (char **string_ptr, int oformat, int osize) |
c906108c SS |
202 | { |
203 | struct format_data val; | |
52f0bd74 | 204 | char *p = *string_ptr; |
c906108c SS |
205 | |
206 | val.format = '?'; | |
207 | val.size = '?'; | |
208 | val.count = 1; | |
a6bac58e | 209 | val.raw = 0; |
c906108c SS |
210 | |
211 | if (*p >= '0' && *p <= '9') | |
212 | val.count = atoi (p); | |
c5aa993b JM |
213 | while (*p >= '0' && *p <= '9') |
214 | p++; | |
c906108c SS |
215 | |
216 | /* Now process size or format letters that follow. */ | |
217 | ||
218 | while (1) | |
219 | { | |
220 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
221 | val.size = *p++; | |
a6bac58e TT |
222 | else if (*p == 'r') |
223 | { | |
224 | val.raw = 1; | |
225 | p++; | |
226 | } | |
c906108c SS |
227 | else if (*p >= 'a' && *p <= 'z') |
228 | val.format = *p++; | |
229 | else | |
230 | break; | |
231 | } | |
232 | ||
c5aa993b JM |
233 | while (*p == ' ' || *p == '\t') |
234 | p++; | |
c906108c SS |
235 | *string_ptr = p; |
236 | ||
237 | /* Set defaults for format and size if not specified. */ | |
238 | if (val.format == '?') | |
239 | { | |
240 | if (val.size == '?') | |
241 | { | |
242 | /* Neither has been specified. */ | |
243 | val.format = oformat; | |
244 | val.size = osize; | |
245 | } | |
246 | else | |
247 | /* If a size is specified, any format makes a reasonable | |
248 | default except 'i'. */ | |
249 | val.format = oformat == 'i' ? 'x' : oformat; | |
250 | } | |
251 | else if (val.size == '?') | |
252 | switch (val.format) | |
253 | { | |
254 | case 'a': | |
5d3729b5 UW |
255 | /* Pick the appropriate size for an address. This is deferred |
256 | until do_examine when we know the actual architecture to use. | |
257 | A special size value of 'a' is used to indicate this case. */ | |
258 | val.size = osize ? 'a' : osize; | |
c906108c SS |
259 | break; |
260 | case 'f': | |
261 | /* Floating point has to be word or giantword. */ | |
262 | if (osize == 'w' || osize == 'g') | |
263 | val.size = osize; | |
264 | else | |
265 | /* Default it to giantword if the last used size is not | |
266 | appropriate. */ | |
267 | val.size = osize ? 'g' : osize; | |
268 | break; | |
269 | case 'c': | |
270 | /* Characters default to one byte. */ | |
271 | val.size = osize ? 'b' : osize; | |
272 | break; | |
9a22f0d0 | 273 | case 's': |
3e43a32a MS |
274 | /* Display strings with byte size chars unless explicitly |
275 | specified. */ | |
9a22f0d0 PM |
276 | val.size = '\0'; |
277 | break; | |
278 | ||
c906108c SS |
279 | default: |
280 | /* The default is the size most recently specified. */ | |
281 | val.size = osize; | |
282 | } | |
283 | ||
284 | return val; | |
285 | } | |
286 | \f | |
79a45b7d | 287 | /* Print value VAL on stream according to OPTIONS. |
c906108c | 288 | Do not end with a newline. |
c906108c | 289 | SIZE is the letter for the size of datum being printed. |
ea37ba09 DJ |
290 | This is used to pad hex numbers so they line up. SIZE is 0 |
291 | for print / output and set for examine. */ | |
c906108c SS |
292 | |
293 | static void | |
79a45b7d TT |
294 | print_formatted (struct value *val, int size, |
295 | const struct value_print_options *options, | |
fba45db2 | 296 | struct ui_file *stream) |
c906108c | 297 | { |
df407dfe | 298 | struct type *type = check_typedef (value_type (val)); |
c906108c SS |
299 | int len = TYPE_LENGTH (type); |
300 | ||
301 | if (VALUE_LVAL (val) == lval_memory) | |
42ae5230 | 302 | next_address = value_address (val) + len; |
c906108c | 303 | |
ea37ba09 | 304 | if (size) |
c906108c | 305 | { |
79a45b7d | 306 | switch (options->format) |
ea37ba09 DJ |
307 | { |
308 | case 's': | |
6c7a06a3 TT |
309 | { |
310 | struct type *elttype = value_type (val); | |
ad3bbd48 | 311 | |
42ae5230 | 312 | next_address = (value_address (val) |
09ca9e2e | 313 | + val_print_string (elttype, NULL, |
42ae5230 | 314 | value_address (val), -1, |
9a22f0d0 | 315 | stream, options) * len); |
6c7a06a3 | 316 | } |
ea37ba09 | 317 | return; |
c906108c | 318 | |
ea37ba09 DJ |
319 | case 'i': |
320 | /* We often wrap here if there are long symbolic names. */ | |
321 | wrap_here (" "); | |
42ae5230 | 322 | next_address = (value_address (val) |
13274fc3 UW |
323 | + gdb_print_insn (get_type_arch (type), |
324 | value_address (val), stream, | |
ea37ba09 DJ |
325 | &branch_delay_insns)); |
326 | return; | |
327 | } | |
c906108c | 328 | } |
ea37ba09 | 329 | |
79a45b7d | 330 | if (options->format == 0 || options->format == 's' |
4e885b20 | 331 | || TYPE_CODE (type) == TYPE_CODE_REF |
ea37ba09 DJ |
332 | || TYPE_CODE (type) == TYPE_CODE_ARRAY |
333 | || TYPE_CODE (type) == TYPE_CODE_STRING | |
334 | || TYPE_CODE (type) == TYPE_CODE_STRUCT | |
335 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
336 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
79a45b7d | 337 | value_print (val, stream, options); |
ea37ba09 | 338 | else |
b021a221 MS |
339 | /* User specified format, so don't look to the type to tell us |
340 | what to do. */ | |
ab2188aa PA |
341 | val_print_scalar_formatted (type, |
342 | value_contents_for_printing (val), | |
343 | value_embedded_offset (val), | |
344 | val, | |
345 | options, size, stream); | |
c906108c SS |
346 | } |
347 | ||
b806fb9a UW |
348 | /* Return builtin floating point type of same length as TYPE. |
349 | If no such type is found, return TYPE itself. */ | |
350 | static struct type * | |
50810684 | 351 | float_type_from_length (struct type *type) |
b806fb9a | 352 | { |
50810684 | 353 | struct gdbarch *gdbarch = get_type_arch (type); |
b806fb9a UW |
354 | const struct builtin_type *builtin = builtin_type (gdbarch); |
355 | unsigned int len = TYPE_LENGTH (type); | |
356 | ||
357 | if (len == TYPE_LENGTH (builtin->builtin_float)) | |
358 | type = builtin->builtin_float; | |
359 | else if (len == TYPE_LENGTH (builtin->builtin_double)) | |
360 | type = builtin->builtin_double; | |
361 | else if (len == TYPE_LENGTH (builtin->builtin_long_double)) | |
362 | type = builtin->builtin_long_double; | |
363 | ||
364 | return type; | |
365 | } | |
366 | ||
c906108c | 367 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, |
ab2188aa PA |
368 | according to OPTIONS and SIZE on STREAM. Formats s and i are not |
369 | supported at this level. */ | |
c906108c SS |
370 | |
371 | void | |
366b1cbf | 372 | print_scalar_formatted (const void *valaddr, struct type *type, |
79a45b7d TT |
373 | const struct value_print_options *options, |
374 | int size, struct ui_file *stream) | |
c906108c | 375 | { |
50810684 | 376 | struct gdbarch *gdbarch = get_type_arch (type); |
81cb7cc9 | 377 | LONGEST val_long = 0; |
c906108c | 378 | unsigned int len = TYPE_LENGTH (type); |
69feb676 | 379 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
c906108c | 380 | |
ab2188aa PA |
381 | /* String printing should go through val_print_scalar_formatted. */ |
382 | gdb_assert (options->format != 's'); | |
ea37ba09 | 383 | |
6b9acc27 JJ |
384 | if (len > sizeof(LONGEST) && |
385 | (TYPE_CODE (type) == TYPE_CODE_INT | |
386 | || TYPE_CODE (type) == TYPE_CODE_ENUM)) | |
387 | { | |
79a45b7d | 388 | switch (options->format) |
6b9acc27 JJ |
389 | { |
390 | case 'o': | |
d44e8473 | 391 | print_octal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
392 | return; |
393 | case 'u': | |
394 | case 'd': | |
d44e8473 | 395 | print_decimal_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
396 | return; |
397 | case 't': | |
d44e8473 | 398 | print_binary_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
399 | return; |
400 | case 'x': | |
d44e8473 | 401 | print_hex_chars (stream, valaddr, len, byte_order); |
6b9acc27 JJ |
402 | return; |
403 | case 'c': | |
6c7a06a3 | 404 | print_char_chars (stream, type, valaddr, len, byte_order); |
6b9acc27 JJ |
405 | return; |
406 | default: | |
407 | break; | |
408 | }; | |
409 | } | |
410 | ||
79a45b7d | 411 | if (options->format != 'f') |
c906108c SS |
412 | val_long = unpack_long (type, valaddr); |
413 | ||
ef166cf4 | 414 | /* If the value is a pointer, and pointers and addresses are not the |
d0aee0c4 | 415 | same, then at this point, the value's length (in target bytes) is |
17a912b6 | 416 | gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */ |
ef166cf4 | 417 | if (TYPE_CODE (type) == TYPE_CODE_PTR) |
69feb676 | 418 | len = gdbarch_addr_bit (gdbarch) / TARGET_CHAR_BIT; |
ef166cf4 | 419 | |
c906108c SS |
420 | /* If we are printing it as unsigned, truncate it in case it is actually |
421 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
422 | (if shorts are 16 bits) instead of 4294967295). */ | |
1fac167a | 423 | if (options->format != 'd' || TYPE_UNSIGNED (type)) |
c906108c SS |
424 | { |
425 | if (len < sizeof (LONGEST)) | |
426 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
427 | } | |
428 | ||
79a45b7d | 429 | switch (options->format) |
c906108c SS |
430 | { |
431 | case 'x': | |
432 | if (!size) | |
433 | { | |
675dcf4f | 434 | /* No size specified, like in print. Print varying # of digits. */ |
c906108c SS |
435 | print_longest (stream, 'x', 1, val_long); |
436 | } | |
437 | else | |
438 | switch (size) | |
439 | { | |
440 | case 'b': | |
441 | case 'h': | |
442 | case 'w': | |
443 | case 'g': | |
444 | print_longest (stream, size, 1, val_long); | |
445 | break; | |
446 | default: | |
8a3fe4f8 | 447 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
448 | } |
449 | break; | |
450 | ||
451 | case 'd': | |
452 | print_longest (stream, 'd', 1, val_long); | |
453 | break; | |
454 | ||
455 | case 'u': | |
456 | print_longest (stream, 'u', 0, val_long); | |
457 | break; | |
458 | ||
459 | case 'o': | |
460 | if (val_long) | |
461 | print_longest (stream, 'o', 1, val_long); | |
462 | else | |
463 | fprintf_filtered (stream, "0"); | |
464 | break; | |
465 | ||
466 | case 'a': | |
593de6a6 | 467 | { |
593de6a6 | 468 | CORE_ADDR addr = unpack_pointer (type, valaddr); |
ad3bbd48 | 469 | |
5af949e3 | 470 | print_address (gdbarch, addr, stream); |
593de6a6 | 471 | } |
c906108c SS |
472 | break; |
473 | ||
474 | case 'c': | |
79a45b7d TT |
475 | { |
476 | struct value_print_options opts = *options; | |
69feb676 | 477 | |
ad3bbd48 | 478 | opts.format = 0; |
79a45b7d | 479 | if (TYPE_UNSIGNED (type)) |
69feb676 UW |
480 | type = builtin_type (gdbarch)->builtin_true_unsigned_char; |
481 | else | |
482 | type = builtin_type (gdbarch)->builtin_true_char; | |
483 | ||
484 | value_print (value_from_longest (type, val_long), stream, &opts); | |
79a45b7d | 485 | } |
c906108c SS |
486 | break; |
487 | ||
488 | case 'f': | |
50810684 | 489 | type = float_type_from_length (type); |
c906108c SS |
490 | print_floating (valaddr, type, stream); |
491 | break; | |
492 | ||
493 | case 0: | |
675dcf4f MK |
494 | internal_error (__FILE__, __LINE__, |
495 | _("failed internal consistency check")); | |
c906108c SS |
496 | |
497 | case 't': | |
498 | /* Binary; 't' stands for "two". */ | |
499 | { | |
c5aa993b JM |
500 | char bits[8 * (sizeof val_long) + 1]; |
501 | char buf[8 * (sizeof val_long) + 32]; | |
c906108c SS |
502 | char *cp = bits; |
503 | int width; | |
504 | ||
c5aa993b JM |
505 | if (!size) |
506 | width = 8 * (sizeof val_long); | |
507 | else | |
508 | switch (size) | |
c906108c SS |
509 | { |
510 | case 'b': | |
511 | width = 8; | |
512 | break; | |
513 | case 'h': | |
514 | width = 16; | |
515 | break; | |
516 | case 'w': | |
517 | width = 32; | |
518 | break; | |
519 | case 'g': | |
520 | width = 64; | |
521 | break; | |
522 | default: | |
8a3fe4f8 | 523 | error (_("Undefined output size \"%c\"."), size); |
c906108c SS |
524 | } |
525 | ||
c5aa993b JM |
526 | bits[width] = '\0'; |
527 | while (width-- > 0) | |
528 | { | |
529 | bits[width] = (val_long & 1) ? '1' : '0'; | |
530 | val_long >>= 1; | |
531 | } | |
c906108c SS |
532 | if (!size) |
533 | { | |
534 | while (*cp && *cp == '0') | |
535 | cp++; | |
536 | if (*cp == '\0') | |
537 | cp--; | |
538 | } | |
daac021a | 539 | strncpy (buf, cp, sizeof (bits)); |
306d9ac5 | 540 | fputs_filtered (buf, stream); |
c906108c SS |
541 | } |
542 | break; | |
543 | ||
544 | default: | |
79a45b7d | 545 | error (_("Undefined output format \"%c\"."), options->format); |
c906108c SS |
546 | } |
547 | } | |
548 | ||
549 | /* Specify default address for `x' command. | |
675dcf4f | 550 | The `info lines' command uses this. */ |
c906108c SS |
551 | |
552 | void | |
8b9b9e1a | 553 | set_next_address (struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 554 | { |
8b9b9e1a UW |
555 | struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr; |
556 | ||
5d3729b5 | 557 | next_gdbarch = gdbarch; |
c906108c SS |
558 | next_address = addr; |
559 | ||
560 | /* Make address available to the user as $_. */ | |
561 | set_internalvar (lookup_internalvar ("_"), | |
8b9b9e1a | 562 | value_from_pointer (ptr_type, addr)); |
c906108c SS |
563 | } |
564 | ||
565 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, | |
566 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
567 | Optionally also print source file and line number, if available. | |
568 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, | |
569 | or to interpret it as a possible C++ name and convert it back to source | |
570 | form. However note that DO_DEMANGLE can be overridden by the specific | |
571 | settings of the demangle and asm_demangle variables. */ | |
572 | ||
573 | void | |
22e722e1 DJ |
574 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
575 | struct ui_file *stream, | |
675dcf4f | 576 | int do_demangle, char *leadin) |
dfcd3bfb JM |
577 | { |
578 | char *name = NULL; | |
579 | char *filename = NULL; | |
580 | int unmapped = 0; | |
581 | int offset = 0; | |
582 | int line = 0; | |
583 | ||
675dcf4f | 584 | /* Throw away both name and filename. */ |
2f9429ae AC |
585 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
586 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 587 | |
22e722e1 | 588 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 589 | &filename, &line, &unmapped)) |
2f9429ae AC |
590 | { |
591 | do_cleanups (cleanup_chain); | |
592 | return; | |
593 | } | |
dfcd3bfb JM |
594 | |
595 | fputs_filtered (leadin, stream); | |
596 | if (unmapped) | |
597 | fputs_filtered ("<*", stream); | |
598 | else | |
599 | fputs_filtered ("<", stream); | |
600 | fputs_filtered (name, stream); | |
601 | if (offset != 0) | |
602 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
603 | ||
604 | /* Append source filename and line number if desired. Give specific | |
605 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
606 | if (print_symbol_filename && filename != NULL) | |
607 | { | |
608 | if (line != -1) | |
609 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
610 | else | |
611 | fprintf_filtered (stream, " in %s", filename); | |
612 | } | |
613 | if (unmapped) | |
614 | fputs_filtered ("*>", stream); | |
615 | else | |
616 | fputs_filtered (">", stream); | |
617 | ||
618 | do_cleanups (cleanup_chain); | |
619 | } | |
620 | ||
621 | /* Given an address ADDR return all the elements needed to print the | |
0df8b418 | 622 | address in a symbolic form. NAME can be mangled or not depending |
dfcd3bfb | 623 | on DO_DEMANGLE (and also on the asm_demangle global variable, |
0df8b418 MS |
624 | manipulated via ''set print asm-demangle''). Return 0 in case of |
625 | success, when all the info in the OUT paramters is valid. Return 1 | |
626 | otherwise. */ | |
dfcd3bfb | 627 | int |
22e722e1 DJ |
628 | build_address_symbolic (struct gdbarch *gdbarch, |
629 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
630 | int do_demangle, /* IN */ |
631 | char **name, /* OUT */ | |
632 | int *offset, /* OUT */ | |
633 | char **filename, /* OUT */ | |
634 | int *line, /* OUT */ | |
635 | int *unmapped) /* OUT */ | |
c906108c SS |
636 | { |
637 | struct minimal_symbol *msymbol; | |
638 | struct symbol *symbol; | |
c906108c | 639 | CORE_ADDR name_location = 0; |
714835d5 | 640 | struct obj_section *section = NULL; |
0d5cff50 | 641 | const char *name_temp = ""; |
dfcd3bfb | 642 | |
89c83b10 | 643 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 644 | *unmapped = 0; |
c906108c | 645 | |
dfcd3bfb | 646 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 647 | mapped. */ |
c906108c SS |
648 | if (overlay_debugging) |
649 | { | |
650 | section = find_pc_overlay (addr); | |
651 | if (pc_in_unmapped_range (addr, section)) | |
652 | { | |
dfcd3bfb | 653 | *unmapped = 1; |
c906108c SS |
654 | addr = overlay_mapped_address (addr, section); |
655 | } | |
656 | } | |
657 | ||
c906108c SS |
658 | /* First try to find the address in the symbol table, then |
659 | in the minsyms. Take the closest one. */ | |
660 | ||
661 | /* This is defective in the sense that it only finds text symbols. So | |
662 | really this is kind of pointless--we should make sure that the | |
663 | minimal symbols have everything we need (by changing that we could | |
664 | save some memory, but for many debug format--ELF/DWARF or | |
665 | anything/stabs--it would be inconvenient to eliminate those minimal | |
666 | symbols anyway). */ | |
667 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
668 | symbol = find_pc_sect_function (addr, section); | |
669 | ||
670 | if (symbol) | |
671 | { | |
22e722e1 DJ |
672 | /* If this is a function (i.e. a code address), strip out any |
673 | non-address bits. For instance, display a pointer to the | |
674 | first instruction of a Thumb function as <function>; the | |
675 | second instruction will be <function+2>, even though the | |
676 | pointer is <function+3>. This matches the ISA behavior. */ | |
677 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
678 | ||
c906108c | 679 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 680 | if (do_demangle || asm_demangle) |
de5ad195 | 681 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 682 | else |
3567439c | 683 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
684 | } |
685 | ||
686 | if (msymbol != NULL) | |
687 | { | |
688 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
689 | { | |
690 | /* The msymbol is closer to the address than the symbol; | |
691 | use the msymbol instead. */ | |
692 | symbol = 0; | |
c906108c | 693 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 694 | if (do_demangle || asm_demangle) |
de5ad195 | 695 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 696 | else |
3567439c | 697 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
698 | } |
699 | } | |
700 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 701 | return 1; |
c906108c | 702 | |
c906108c SS |
703 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
704 | ||
705 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
706 | CORE_ADDR. But when we detect unsigned wraparound in the | |
707 | CORE_ADDR math, we ignore this test and print the offset, | |
708 | because addr+max_symbolic_offset has wrapped through the end | |
709 | of the address space back to the beginning, giving bogus comparison. */ | |
710 | if (addr > name_location + max_symbolic_offset | |
711 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 712 | return 1; |
c906108c | 713 | |
dfcd3bfb JM |
714 | *offset = addr - name_location; |
715 | ||
716 | *name = xstrdup (name_temp); | |
c906108c | 717 | |
c906108c SS |
718 | if (print_symbol_filename) |
719 | { | |
720 | struct symtab_and_line sal; | |
721 | ||
722 | sal = find_pc_sect_line (addr, section, 0); | |
723 | ||
724 | if (sal.symtab) | |
dfcd3bfb JM |
725 | { |
726 | *filename = xstrdup (sal.symtab->filename); | |
727 | *line = sal.line; | |
728 | } | |
c906108c | 729 | } |
dfcd3bfb | 730 | return 0; |
c906108c SS |
731 | } |
732 | ||
c906108c SS |
733 | |
734 | /* Print address ADDR symbolically on STREAM. | |
735 | First print it as a number. Then perhaps print | |
736 | <SYMBOL + OFFSET> after the number. */ | |
737 | ||
738 | void | |
5af949e3 UW |
739 | print_address (struct gdbarch *gdbarch, |
740 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 741 | { |
5af949e3 | 742 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 743 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
744 | } |
745 | ||
2b28d209 PP |
746 | /* Return a prefix for instruction address: |
747 | "=> " for current instruction, else " ". */ | |
748 | ||
749 | const char * | |
750 | pc_prefix (CORE_ADDR addr) | |
751 | { | |
752 | if (has_stack_frames ()) | |
753 | { | |
754 | struct frame_info *frame; | |
755 | CORE_ADDR pc; | |
756 | ||
757 | frame = get_selected_frame (NULL); | |
ce406537 | 758 | if (get_frame_pc_if_available (frame, &pc) && pc == addr) |
2b28d209 PP |
759 | return "=> "; |
760 | } | |
761 | return " "; | |
762 | } | |
763 | ||
c906108c SS |
764 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
765 | controls whether to print the symbolic name "raw" or demangled. | |
766 | Global setting "addressprint" controls whether to print hex address | |
767 | or not. */ | |
768 | ||
769 | void | |
5af949e3 UW |
770 | print_address_demangle (struct gdbarch *gdbarch, CORE_ADDR addr, |
771 | struct ui_file *stream, int do_demangle) | |
c906108c | 772 | { |
79a45b7d | 773 | struct value_print_options opts; |
ad3bbd48 | 774 | |
79a45b7d | 775 | get_user_print_options (&opts); |
c906108c SS |
776 | if (addr == 0) |
777 | { | |
778 | fprintf_filtered (stream, "0"); | |
779 | } | |
79a45b7d | 780 | else if (opts.addressprint) |
c906108c | 781 | { |
5af949e3 | 782 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 783 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
784 | } |
785 | else | |
786 | { | |
22e722e1 | 787 | print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c SS |
788 | } |
789 | } | |
790 | \f | |
791 | ||
c906108c SS |
792 | /* Examine data at address ADDR in format FMT. |
793 | Fetch it from memory and print on gdb_stdout. */ | |
794 | ||
795 | static void | |
5d3729b5 | 796 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 797 | { |
52f0bd74 AC |
798 | char format = 0; |
799 | char size; | |
800 | int count = 1; | |
c906108c | 801 | struct type *val_type = NULL; |
52f0bd74 AC |
802 | int i; |
803 | int maxelts; | |
79a45b7d | 804 | struct value_print_options opts; |
c906108c SS |
805 | |
806 | format = fmt.format; | |
807 | size = fmt.size; | |
808 | count = fmt.count; | |
5d3729b5 | 809 | next_gdbarch = gdbarch; |
c906108c | 810 | next_address = addr; |
c906108c | 811 | |
9a22f0d0 PM |
812 | /* Instruction format implies fetch single bytes |
813 | regardless of the specified size. | |
814 | The case of strings is handled in decode_format, only explicit | |
815 | size operator are not changed to 'b'. */ | |
816 | if (format == 'i') | |
c906108c SS |
817 | size = 'b'; |
818 | ||
5d3729b5 UW |
819 | if (size == 'a') |
820 | { | |
821 | /* Pick the appropriate size for an address. */ | |
822 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
823 | size = 'g'; | |
824 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
825 | size = 'w'; | |
826 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
827 | size = 'h'; | |
828 | else | |
829 | /* Bad value for gdbarch_ptr_bit. */ | |
830 | internal_error (__FILE__, __LINE__, | |
831 | _("failed internal consistency check")); | |
832 | } | |
833 | ||
834 | if (size == 'b') | |
df4df182 | 835 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 836 | else if (size == 'h') |
df4df182 | 837 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 838 | else if (size == 'w') |
df4df182 | 839 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 840 | else if (size == 'g') |
df4df182 | 841 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c | 842 | |
9a22f0d0 PM |
843 | if (format == 's') |
844 | { | |
845 | struct type *char_type = NULL; | |
ad3bbd48 | 846 | |
9a22f0d0 PM |
847 | /* Search for "char16_t" or "char32_t" types or fall back to 8-bit char |
848 | if type is not found. */ | |
849 | if (size == 'h') | |
850 | char_type = builtin_type (next_gdbarch)->builtin_char16; | |
851 | else if (size == 'w') | |
852 | char_type = builtin_type (next_gdbarch)->builtin_char32; | |
853 | if (char_type) | |
854 | val_type = char_type; | |
855 | else | |
856 | { | |
857 | if (size != '\0' && size != 'b') | |
0df8b418 MS |
858 | warning (_("Unable to display strings with " |
859 | "size '%c', using 'b' instead."), size); | |
9a22f0d0 PM |
860 | size = 'b'; |
861 | val_type = builtin_type (next_gdbarch)->builtin_int8; | |
862 | } | |
863 | } | |
864 | ||
c906108c SS |
865 | maxelts = 8; |
866 | if (size == 'w') | |
867 | maxelts = 4; | |
868 | if (size == 'g') | |
869 | maxelts = 2; | |
870 | if (format == 's' || format == 'i') | |
871 | maxelts = 1; | |
872 | ||
79a45b7d TT |
873 | get_formatted_print_options (&opts, format); |
874 | ||
c906108c SS |
875 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
876 | with the address of the next one at the start of each line. */ | |
877 | ||
878 | while (count > 0) | |
879 | { | |
880 | QUIT; | |
2b28d209 PP |
881 | if (format == 'i') |
882 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 883 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
884 | printf_filtered (":"); |
885 | for (i = maxelts; | |
886 | i > 0 && count > 0; | |
887 | i--, count--) | |
888 | { | |
889 | printf_filtered ("\t"); | |
890 | /* Note that print_formatted sets next_address for the next | |
891 | object. */ | |
892 | last_examine_address = next_address; | |
893 | ||
894 | if (last_examine_value) | |
895 | value_free (last_examine_value); | |
896 | ||
897 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
898 | Instead, to avoid the possibility of a fetched value not |
899 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
900 | uses it. When examining an instruction stream, the |
901 | disassembler will perform its own memory fetch using just | |
902 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
903 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
904 | is left with the byte sequence from the last complete | |
0df8b418 | 905 | instruction fetched from memory? */ |
00a4c844 | 906 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
907 | |
908 | if (last_examine_value) | |
909 | release_value (last_examine_value); | |
910 | ||
79a45b7d | 911 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
912 | |
913 | /* Display any branch delay slots following the final insn. */ | |
914 | if (format == 'i' && count == 1) | |
915 | count += branch_delay_insns; | |
c906108c SS |
916 | } |
917 | printf_filtered ("\n"); | |
918 | gdb_flush (gdb_stdout); | |
919 | } | |
920 | } | |
921 | \f | |
922 | static void | |
fba45db2 | 923 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
924 | { |
925 | if (fmt.size != 0) | |
8a3fe4f8 | 926 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 927 | if (fmt.count != 1) |
8a3fe4f8 | 928 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 929 | cmdname); |
ea37ba09 | 930 | if (fmt.format == 'i') |
8a3fe4f8 | 931 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
932 | fmt.format, cmdname); |
933 | } | |
934 | ||
675dcf4f | 935 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 936 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 937 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
938 | |
939 | static void | |
fba45db2 | 940 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
941 | { |
942 | struct expression *expr; | |
52f0bd74 AC |
943 | struct cleanup *old_chain = 0; |
944 | char format = 0; | |
3d6d86c6 | 945 | struct value *val; |
c906108c SS |
946 | struct format_data fmt; |
947 | int cleanup = 0; | |
948 | ||
c906108c SS |
949 | if (exp && *exp == '/') |
950 | { | |
951 | exp++; | |
952 | fmt = decode_format (&exp, last_format, 0); | |
953 | validate_format (fmt, "print"); | |
954 | last_format = format = fmt.format; | |
955 | } | |
956 | else | |
957 | { | |
958 | fmt.count = 1; | |
959 | fmt.format = 0; | |
960 | fmt.size = 0; | |
a6bac58e | 961 | fmt.raw = 0; |
c906108c SS |
962 | } |
963 | ||
964 | if (exp && *exp) | |
965 | { | |
c906108c | 966 | expr = parse_expression (exp); |
c13c43fd | 967 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
968 | cleanup = 1; |
969 | val = evaluate_expression (expr); | |
c906108c SS |
970 | } |
971 | else | |
972 | val = access_value_history (0); | |
973 | ||
df407dfe AC |
974 | if (voidprint || (val && value_type (val) && |
975 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 976 | { |
79a45b7d | 977 | struct value_print_options opts; |
c906108c SS |
978 | int histindex = record_latest_value (val); |
979 | ||
980 | if (histindex >= 0) | |
df407dfe | 981 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 982 | else |
df407dfe | 983 | annotate_value_begin (value_type (val)); |
c906108c SS |
984 | |
985 | if (inspect) | |
675dcf4f MK |
986 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
987 | exp, histindex); | |
c5aa993b JM |
988 | else if (histindex >= 0) |
989 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
990 | |
991 | if (histindex >= 0) | |
992 | annotate_value_history_value (); | |
993 | ||
79a45b7d TT |
994 | get_formatted_print_options (&opts, format); |
995 | opts.inspect_it = inspect; | |
a6bac58e | 996 | opts.raw = fmt.raw; |
79a45b7d TT |
997 | |
998 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
999 | printf_filtered ("\n"); |
1000 | ||
1001 | if (histindex >= 0) | |
1002 | annotate_value_history_end (); | |
1003 | else | |
1004 | annotate_value_end (); | |
1005 | ||
1006 | if (inspect) | |
c5aa993b | 1007 | printf_unfiltered ("\") )\030"); |
c906108c SS |
1008 | } |
1009 | ||
1010 | if (cleanup) | |
1011 | do_cleanups (old_chain); | |
c906108c SS |
1012 | } |
1013 | ||
c906108c | 1014 | static void |
fba45db2 | 1015 | print_command (char *exp, int from_tty) |
c906108c SS |
1016 | { |
1017 | print_command_1 (exp, 0, 1); | |
1018 | } | |
1019 | ||
675dcf4f | 1020 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 1021 | static void |
fba45db2 | 1022 | inspect_command (char *exp, int from_tty) |
c906108c SS |
1023 | { |
1024 | extern int epoch_interface; | |
1025 | ||
1026 | print_command_1 (exp, epoch_interface, 1); | |
1027 | } | |
1028 | ||
675dcf4f | 1029 | /* Same as print, except it doesn't print void results. */ |
c906108c | 1030 | static void |
fba45db2 | 1031 | call_command (char *exp, int from_tty) |
c906108c SS |
1032 | { |
1033 | print_command_1 (exp, 0, 0); | |
1034 | } | |
1035 | ||
c906108c | 1036 | void |
fba45db2 | 1037 | output_command (char *exp, int from_tty) |
c906108c SS |
1038 | { |
1039 | struct expression *expr; | |
52f0bd74 AC |
1040 | struct cleanup *old_chain; |
1041 | char format = 0; | |
3d6d86c6 | 1042 | struct value *val; |
c906108c | 1043 | struct format_data fmt; |
79a45b7d | 1044 | struct value_print_options opts; |
c906108c | 1045 | |
777ea8f1 | 1046 | fmt.size = 0; |
a6bac58e | 1047 | fmt.raw = 0; |
777ea8f1 | 1048 | |
c906108c SS |
1049 | if (exp && *exp == '/') |
1050 | { | |
1051 | exp++; | |
1052 | fmt = decode_format (&exp, 0, 0); | |
1053 | validate_format (fmt, "output"); | |
1054 | format = fmt.format; | |
1055 | } | |
1056 | ||
1057 | expr = parse_expression (exp); | |
c13c43fd | 1058 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1059 | |
1060 | val = evaluate_expression (expr); | |
1061 | ||
df407dfe | 1062 | annotate_value_begin (value_type (val)); |
c906108c | 1063 | |
79a45b7d | 1064 | get_formatted_print_options (&opts, format); |
a6bac58e | 1065 | opts.raw = fmt.raw; |
79a45b7d | 1066 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1067 | |
1068 | annotate_value_end (); | |
1069 | ||
2acceee2 JM |
1070 | wrap_here (""); |
1071 | gdb_flush (gdb_stdout); | |
1072 | ||
c906108c SS |
1073 | do_cleanups (old_chain); |
1074 | } | |
1075 | ||
c906108c | 1076 | static void |
fba45db2 | 1077 | set_command (char *exp, int from_tty) |
c906108c SS |
1078 | { |
1079 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1080 | struct cleanup *old_chain = |
c13c43fd | 1081 | make_cleanup (free_current_contents, &expr); |
ad3bbd48 | 1082 | |
0ece64fd TG |
1083 | if (expr->nelts >= 1) |
1084 | switch (expr->elts[0].opcode) | |
1085 | { | |
1086 | case UNOP_PREINCREMENT: | |
1087 | case UNOP_POSTINCREMENT: | |
1088 | case UNOP_PREDECREMENT: | |
1089 | case UNOP_POSTDECREMENT: | |
1090 | case BINOP_ASSIGN: | |
1091 | case BINOP_ASSIGN_MODIFY: | |
1092 | case BINOP_COMMA: | |
1093 | break; | |
1094 | default: | |
1095 | warning | |
1096 | (_("Expression is not an assignment (and might have no effect)")); | |
1097 | } | |
52b3699b | 1098 | |
c906108c SS |
1099 | evaluate_expression (expr); |
1100 | do_cleanups (old_chain); | |
1101 | } | |
1102 | ||
c906108c | 1103 | static void |
fba45db2 | 1104 | sym_info (char *arg, int from_tty) |
c906108c SS |
1105 | { |
1106 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1107 | struct objfile *objfile; |
1108 | struct obj_section *osect; | |
c5aa993b JM |
1109 | CORE_ADDR addr, sect_addr; |
1110 | int matches = 0; | |
1111 | unsigned int offset; | |
c906108c SS |
1112 | |
1113 | if (!arg) | |
e2e0b3e5 | 1114 | error_no_arg (_("address")); |
c906108c SS |
1115 | |
1116 | addr = parse_and_eval_address (arg); | |
1117 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1118 | { |
94277a38 DJ |
1119 | /* Only process each object file once, even if there's a separate |
1120 | debug file. */ | |
1121 | if (objfile->separate_debug_objfile_backlink) | |
1122 | continue; | |
1123 | ||
714835d5 | 1124 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1125 | |
f1f6aadf PA |
1126 | if (obj_section_addr (osect) <= sect_addr |
1127 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1128 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1129 | { |
c14c28ba | 1130 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1131 | char *loc_string; |
1132 | struct cleanup *old_chain; | |
c14c28ba | 1133 | |
c5aa993b JM |
1134 | matches = 1; |
1135 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1136 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1137 | sec_name = osect->the_bfd_section->name; | |
1138 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1139 | ||
e2fd701e DE |
1140 | /* Don't print the offset if it is zero. |
1141 | We assume there's no need to handle i18n of "sym + offset". */ | |
1142 | if (offset) | |
549ba0f8 | 1143 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1144 | else |
549ba0f8 | 1145 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1146 | |
1147 | /* Use a cleanup to free loc_string in case the user quits | |
1148 | a pagination request inside printf_filtered. */ | |
1149 | old_chain = make_cleanup (xfree, loc_string); | |
1150 | ||
c14c28ba PP |
1151 | gdb_assert (osect->objfile && osect->objfile->name); |
1152 | obj_name = osect->objfile->name; | |
1153 | ||
1154 | if (MULTI_OBJFILE_P ()) | |
1155 | if (pc_in_unmapped_range (addr, osect)) | |
1156 | if (section_is_overlay (osect)) | |
e2fd701e | 1157 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1158 | "%s overlay section %s of %s\n"), |
e2fd701e | 1159 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1160 | else |
e2fd701e | 1161 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1162 | "section %s of %s\n"), |
e2fd701e | 1163 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1164 | else |
1165 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1166 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1167 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1168 | else |
e2fd701e DE |
1169 | printf_filtered (_("%s in section %s of %s\n"), |
1170 | loc_string, sec_name, obj_name); | |
c5aa993b | 1171 | else |
c14c28ba PP |
1172 | if (pc_in_unmapped_range (addr, osect)) |
1173 | if (section_is_overlay (osect)) | |
e2fd701e | 1174 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1175 | "section %s\n"), |
e2fd701e | 1176 | loc_string, mapped, sec_name); |
c14c28ba | 1177 | else |
e2fd701e DE |
1178 | printf_filtered (_("%s in load address range of section %s\n"), |
1179 | loc_string, sec_name); | |
c14c28ba PP |
1180 | else |
1181 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1182 | printf_filtered (_("%s in %s overlay section %s\n"), |
1183 | loc_string, mapped, sec_name); | |
c14c28ba | 1184 | else |
e2fd701e DE |
1185 | printf_filtered (_("%s in section %s\n"), |
1186 | loc_string, sec_name); | |
1187 | ||
1188 | do_cleanups (old_chain); | |
c5aa993b JM |
1189 | } |
1190 | } | |
c906108c | 1191 | if (matches == 0) |
a3f17187 | 1192 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1193 | } |
1194 | ||
c906108c | 1195 | static void |
fba45db2 | 1196 | address_info (char *exp, int from_tty) |
c906108c | 1197 | { |
768a979c UW |
1198 | struct gdbarch *gdbarch; |
1199 | int regno; | |
52f0bd74 AC |
1200 | struct symbol *sym; |
1201 | struct minimal_symbol *msymbol; | |
1202 | long val; | |
714835d5 | 1203 | struct obj_section *section; |
08922a10 | 1204 | CORE_ADDR load_addr, context_pc = 0; |
c906108c | 1205 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero |
0df8b418 | 1206 | if exp is a field of `this'. */ |
c906108c SS |
1207 | |
1208 | if (exp == 0) | |
8a3fe4f8 | 1209 | error (_("Argument required.")); |
c906108c | 1210 | |
08922a10 | 1211 | sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN, |
2570f2b7 | 1212 | &is_a_field_of_this); |
c906108c SS |
1213 | if (sym == NULL) |
1214 | { | |
1215 | if (is_a_field_of_this) | |
1216 | { | |
1217 | printf_filtered ("Symbol \""); | |
1218 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1219 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1220 | printf_filtered ("\" is a field of the local class variable "); |
1221 | if (current_language->la_language == language_objc) | |
2625d86c | 1222 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1223 | else |
2625d86c | 1224 | printf_filtered ("`this'\n"); |
c906108c SS |
1225 | return; |
1226 | } | |
1227 | ||
1228 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1229 | ||
1230 | if (msymbol != NULL) | |
1231 | { | |
5af949e3 | 1232 | gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
c906108c SS |
1233 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); |
1234 | ||
1235 | printf_filtered ("Symbol \""); | |
1236 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1237 | current_language->la_language, DMGL_ANSI); | |
1238 | printf_filtered ("\" is at "); | |
5af949e3 | 1239 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1240 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1241 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1242 | if (section_is_overlay (section)) |
1243 | { | |
1244 | load_addr = overlay_unmapped_address (load_addr, section); | |
1245 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1246 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1247 | printf_filtered (" in overlay section %s", |
1248 | section->the_bfd_section->name); | |
c906108c SS |
1249 | } |
1250 | printf_filtered (".\n"); | |
1251 | } | |
1252 | else | |
8a3fe4f8 | 1253 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1254 | return; |
1255 | } | |
1256 | ||
1257 | printf_filtered ("Symbol \""); | |
3567439c | 1258 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1259 | current_language->la_language, DMGL_ANSI); |
1260 | printf_filtered ("\" is "); | |
c5aa993b | 1261 | val = SYMBOL_VALUE (sym); |
714835d5 | 1262 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1263 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1264 | |
1265 | switch (SYMBOL_CLASS (sym)) | |
1266 | { | |
1267 | case LOC_CONST: | |
1268 | case LOC_CONST_BYTES: | |
1269 | printf_filtered ("constant"); | |
1270 | break; | |
1271 | ||
1272 | case LOC_LABEL: | |
1273 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1274 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1275 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1276 | if (section_is_overlay (section)) |
1277 | { | |
1278 | load_addr = overlay_unmapped_address (load_addr, section); | |
1279 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1280 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1281 | printf_filtered (" in overlay section %s", |
1282 | section->the_bfd_section->name); | |
c906108c SS |
1283 | } |
1284 | break; | |
1285 | ||
4c2df51b | 1286 | case LOC_COMPUTED: |
a67af2b9 | 1287 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1288 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1289 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1290 | function) location in a function's symbol. Oops! For the |
1291 | moment enable this when/where applicable. */ | |
3e43a32a MS |
1292 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc, |
1293 | gdb_stdout); | |
4c2df51b DJ |
1294 | break; |
1295 | ||
c906108c | 1296 | case LOC_REGISTER: |
768a979c UW |
1297 | /* GDBARCH is the architecture associated with the objfile the symbol |
1298 | is defined in; the target architecture may be different, and may | |
1299 | provide additional registers. However, we do not know the target | |
1300 | architecture at this point. We assume the objfile architecture | |
1301 | will contain all the standard registers that occur in debug info | |
1302 | in that objfile. */ | |
1303 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1304 | ||
2a2d4dc3 AS |
1305 | if (SYMBOL_IS_ARGUMENT (sym)) |
1306 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1307 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1308 | else |
1309 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1310 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1311 | break; |
1312 | ||
1313 | case LOC_STATIC: | |
a3f17187 | 1314 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1315 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1316 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1317 | if (section_is_overlay (section)) |
1318 | { | |
1319 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1320 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1321 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1322 | printf_filtered (_(" in overlay section %s"), |
1323 | section->the_bfd_section->name); | |
c906108c SS |
1324 | } |
1325 | break; | |
1326 | ||
c906108c | 1327 | case LOC_REGPARM_ADDR: |
768a979c UW |
1328 | /* Note comment at LOC_REGISTER. */ |
1329 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1330 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1331 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1332 | break; |
1333 | ||
1334 | case LOC_ARG: | |
a3f17187 | 1335 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1336 | break; |
1337 | ||
c906108c | 1338 | case LOC_LOCAL: |
a3f17187 | 1339 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1340 | break; |
1341 | ||
1342 | case LOC_REF_ARG: | |
a3f17187 | 1343 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1344 | break; |
1345 | ||
c906108c | 1346 | case LOC_TYPEDEF: |
a3f17187 | 1347 | printf_filtered (_("a typedef")); |
c906108c SS |
1348 | break; |
1349 | ||
1350 | case LOC_BLOCK: | |
a3f17187 | 1351 | printf_filtered (_("a function at address ")); |
675dcf4f | 1352 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1353 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1354 | if (section_is_overlay (section)) |
1355 | { | |
1356 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1357 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1358 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1359 | printf_filtered (_(" in overlay section %s"), |
1360 | section->the_bfd_section->name); | |
c906108c SS |
1361 | } |
1362 | break; | |
1363 | ||
1364 | case LOC_UNRESOLVED: | |
1365 | { | |
1366 | struct minimal_symbol *msym; | |
1367 | ||
3567439c | 1368 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1369 | if (msym == NULL) |
1370 | printf_filtered ("unresolved"); | |
1371 | else | |
1372 | { | |
714835d5 | 1373 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1374 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1375 | |
1376 | if (section | |
1377 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1378 | printf_filtered (_("a thread-local variable at offset %s " | |
1379 | "in the thread-local storage for `%s'"), | |
5af949e3 UW |
1380 | paddress (gdbarch, load_addr), |
1381 | section->objfile->name); | |
e0740f77 | 1382 | else |
c906108c | 1383 | { |
e0740f77 | 1384 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1385 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1386 | if (section_is_overlay (section)) |
1387 | { | |
1388 | load_addr = overlay_unmapped_address (load_addr, section); | |
1389 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1390 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1391 | printf_filtered (_(" in overlay section %s"), |
1392 | section->the_bfd_section->name); | |
1393 | } | |
c906108c SS |
1394 | } |
1395 | } | |
1396 | } | |
1397 | break; | |
1398 | ||
c906108c | 1399 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1400 | printf_filtered (_("optimized out")); |
c906108c | 1401 | break; |
c5aa993b | 1402 | |
c906108c | 1403 | default: |
a3f17187 | 1404 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1405 | break; |
1406 | } | |
1407 | printf_filtered (".\n"); | |
1408 | } | |
1409 | \f | |
675dcf4f MK |
1410 | |
1411 | static void | |
fba45db2 | 1412 | x_command (char *exp, int from_tty) |
c906108c SS |
1413 | { |
1414 | struct expression *expr; | |
1415 | struct format_data fmt; | |
1416 | struct cleanup *old_chain; | |
1417 | struct value *val; | |
1418 | ||
a6bac58e | 1419 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1420 | fmt.size = last_size; |
1421 | fmt.count = 1; | |
a6bac58e | 1422 | fmt.raw = 0; |
c906108c SS |
1423 | |
1424 | if (exp && *exp == '/') | |
1425 | { | |
1426 | exp++; | |
1427 | fmt = decode_format (&exp, last_format, last_size); | |
1428 | } | |
1429 | ||
1430 | /* If we have an expression, evaluate it and use it as the address. */ | |
1431 | ||
1432 | if (exp != 0 && *exp != 0) | |
1433 | { | |
1434 | expr = parse_expression (exp); | |
675dcf4f MK |
1435 | /* Cause expression not to be there any more if this command is |
1436 | repeated with Newline. But don't clobber a user-defined | |
1437 | command's definition. */ | |
c906108c SS |
1438 | if (from_tty) |
1439 | *exp = 0; | |
c13c43fd | 1440 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1441 | val = evaluate_expression (expr); |
df407dfe | 1442 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
e1c34c5d | 1443 | val = coerce_ref (val); |
c906108c | 1444 | /* In rvalue contexts, such as this, functions are coerced into |
c5aa993b | 1445 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1446 | if (/* last_format == 'i' && */ |
df407dfe | 1447 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1448 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1449 | next_address = value_address (val); |
c906108c | 1450 | else |
1aa20aa8 | 1451 | next_address = value_as_address (val); |
5d3729b5 UW |
1452 | |
1453 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1454 | do_cleanups (old_chain); |
1455 | } | |
1456 | ||
5d3729b5 UW |
1457 | if (!next_gdbarch) |
1458 | error_no_arg (_("starting display address")); | |
1459 | ||
1460 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1461 | |
675dcf4f | 1462 | /* If the examine succeeds, we remember its size and format for next |
9a22f0d0 PM |
1463 | time. Set last_size to 'b' for strings. */ |
1464 | if (fmt.format == 's') | |
1465 | last_size = 'b'; | |
1466 | else | |
1467 | last_size = fmt.size; | |
c906108c SS |
1468 | last_format = fmt.format; |
1469 | ||
0df8b418 | 1470 | /* Set a couple of internal variables if appropriate. */ |
c906108c SS |
1471 | if (last_examine_value) |
1472 | { | |
1473 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1474 | the correct pointer type. */ |
4478b372 | 1475 | struct type *pointer_type |
df407dfe | 1476 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1477 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1478 | value_from_pointer (pointer_type, |
1479 | last_examine_address)); | |
c5aa993b | 1480 | |
675dcf4f MK |
1481 | /* Make contents of last address examined available to the user |
1482 | as $__. If the last value has not been fetched from memory | |
1483 | then don't fetch it now; instead mark it by voiding the $__ | |
1484 | variable. */ | |
d69fe07e | 1485 | if (value_lazy (last_examine_value)) |
4fa62494 | 1486 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1487 | else |
1488 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1489 | } | |
1490 | } | |
c906108c | 1491 | \f |
c5aa993b | 1492 | |
c906108c SS |
1493 | /* Add an expression to the auto-display chain. |
1494 | Specify the expression. */ | |
1495 | ||
1496 | static void | |
fba45db2 | 1497 | display_command (char *exp, int from_tty) |
c906108c SS |
1498 | { |
1499 | struct format_data fmt; | |
52f0bd74 AC |
1500 | struct expression *expr; |
1501 | struct display *new; | |
c906108c SS |
1502 | int display_it = 1; |
1503 | ||
1504 | #if defined(TUI) | |
021e7609 AC |
1505 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1506 | `tui_version'. */ | |
fd33e6cb | 1507 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1508 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1509 | #endif |
1510 | ||
1511 | if (display_it) | |
1512 | { | |
1513 | if (exp == 0) | |
1514 | { | |
1515 | do_displays (); | |
1516 | return; | |
1517 | } | |
1518 | ||
1519 | if (*exp == '/') | |
1520 | { | |
1521 | exp++; | |
1522 | fmt = decode_format (&exp, 0, 0); | |
1523 | if (fmt.size && fmt.format == 0) | |
1524 | fmt.format = 'x'; | |
1525 | if (fmt.format == 'i' || fmt.format == 's') | |
1526 | fmt.size = 'b'; | |
1527 | } | |
1528 | else | |
1529 | { | |
1530 | fmt.format = 0; | |
1531 | fmt.size = 0; | |
1532 | fmt.count = 0; | |
a6bac58e | 1533 | fmt.raw = 0; |
c906108c SS |
1534 | } |
1535 | ||
a3247a22 | 1536 | innermost_block = NULL; |
c906108c SS |
1537 | expr = parse_expression (exp); |
1538 | ||
1539 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1540 | ||
fa8a61dc | 1541 | new->exp_string = xstrdup (exp); |
c906108c SS |
1542 | new->exp = expr; |
1543 | new->block = innermost_block; | |
6c95b8df | 1544 | new->pspace = current_program_space; |
c906108c SS |
1545 | new->next = display_chain; |
1546 | new->number = ++display_number; | |
1547 | new->format = fmt; | |
b5de0fa7 | 1548 | new->enabled_p = 1; |
c906108c SS |
1549 | display_chain = new; |
1550 | ||
1551 | if (from_tty && target_has_execution) | |
1552 | do_one_display (new); | |
1553 | ||
1554 | dont_repeat (); | |
1555 | } | |
1556 | } | |
1557 | ||
1558 | static void | |
fba45db2 | 1559 | free_display (struct display *d) |
c906108c | 1560 | { |
fa8a61dc | 1561 | xfree (d->exp_string); |
b8c9b27d KB |
1562 | xfree (d->exp); |
1563 | xfree (d); | |
c906108c SS |
1564 | } |
1565 | ||
675dcf4f MK |
1566 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1567 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1568 | |
1569 | void | |
fba45db2 | 1570 | clear_displays (void) |
c906108c | 1571 | { |
52f0bd74 | 1572 | struct display *d; |
c906108c SS |
1573 | |
1574 | while ((d = display_chain) != NULL) | |
1575 | { | |
c906108c | 1576 | display_chain = d->next; |
fa8a61dc | 1577 | free_display (d); |
c906108c SS |
1578 | } |
1579 | } | |
1580 | ||
3c3fe74c | 1581 | /* Delete the auto-display DISPLAY. */ |
c906108c SS |
1582 | |
1583 | static void | |
3c3fe74c | 1584 | delete_display (struct display *display) |
c906108c | 1585 | { |
3c3fe74c | 1586 | struct display *d; |
c906108c | 1587 | |
3c3fe74c | 1588 | gdb_assert (display != NULL); |
c906108c | 1589 | |
3c3fe74c PA |
1590 | if (display_chain == display) |
1591 | display_chain = display->next; | |
1592 | ||
1593 | ALL_DISPLAYS (d) | |
1594 | if (d->next == display) | |
c906108c | 1595 | { |
3c3fe74c PA |
1596 | d->next = display->next; |
1597 | break; | |
c906108c | 1598 | } |
3c3fe74c PA |
1599 | |
1600 | free_display (display); | |
c906108c SS |
1601 | } |
1602 | ||
c9174737 PA |
1603 | /* Call FUNCTION on each of the displays whose numbers are given in |
1604 | ARGS. DATA is passed unmodified to FUNCTION. */ | |
c906108c SS |
1605 | |
1606 | static void | |
c9174737 PA |
1607 | map_display_numbers (char *args, |
1608 | void (*function) (struct display *, | |
1609 | void *), | |
1610 | void *data) | |
c906108c | 1611 | { |
197f0a60 | 1612 | struct get_number_or_range_state state; |
c9174737 PA |
1613 | struct display *b, *tmp; |
1614 | int num; | |
c906108c | 1615 | |
c9174737 PA |
1616 | if (args == NULL) |
1617 | error_no_arg (_("one or more display numbers")); | |
c906108c | 1618 | |
197f0a60 | 1619 | init_number_or_range (&state, args); |
c9174737 | 1620 | |
197f0a60 | 1621 | while (!state.finished) |
c906108c | 1622 | { |
197f0a60 | 1623 | char *p = state.string; |
c906108c | 1624 | |
197f0a60 | 1625 | num = get_number_or_range (&state); |
3c3fe74c PA |
1626 | if (num == 0) |
1627 | warning (_("bad display number at or near '%s'"), p); | |
1628 | else | |
1629 | { | |
c9174737 | 1630 | struct display *d, *tmp; |
c906108c | 1631 | |
c9174737 | 1632 | ALL_DISPLAYS_SAFE (d, tmp) |
3c3fe74c PA |
1633 | if (d->number == num) |
1634 | break; | |
1635 | if (d == NULL) | |
1636 | printf_unfiltered (_("No display number %d.\n"), num); | |
1637 | else | |
c9174737 | 1638 | function (d, data); |
3c3fe74c | 1639 | } |
c906108c | 1640 | } |
c9174737 PA |
1641 | } |
1642 | ||
1643 | /* Callback for map_display_numbers, that deletes a display. */ | |
1644 | ||
1645 | static void | |
1646 | do_delete_display (struct display *d, void *data) | |
1647 | { | |
1648 | delete_display (d); | |
1649 | } | |
1650 | ||
1651 | /* "undisplay" command. */ | |
1652 | ||
1653 | static void | |
1654 | undisplay_command (char *args, int from_tty) | |
1655 | { | |
1656 | int num; | |
1657 | struct get_number_or_range_state state; | |
1658 | ||
1659 | if (args == NULL) | |
1660 | { | |
1661 | if (query (_("Delete all auto-display expressions? "))) | |
1662 | clear_displays (); | |
1663 | dont_repeat (); | |
1664 | return; | |
1665 | } | |
1666 | ||
1667 | map_display_numbers (args, do_delete_display, NULL); | |
c906108c SS |
1668 | dont_repeat (); |
1669 | } | |
1670 | ||
1671 | /* Display a single auto-display. | |
1672 | Do nothing if the display cannot be printed in the current context, | |
0df8b418 | 1673 | or if the display is disabled. */ |
c906108c SS |
1674 | |
1675 | static void | |
fba45db2 | 1676 | do_one_display (struct display *d) |
c906108c | 1677 | { |
af6e93b2 | 1678 | struct cleanup *old_chain; |
c906108c SS |
1679 | int within_current_scope; |
1680 | ||
b5de0fa7 | 1681 | if (d->enabled_p == 0) |
c906108c SS |
1682 | return; |
1683 | ||
704e9165 UW |
1684 | /* The expression carries the architecture that was used at parse time. |
1685 | This is a problem if the expression depends on architecture features | |
1686 | (e.g. register numbers), and the current architecture is now different. | |
1687 | For example, a display statement like "display/i $pc" is expected to | |
1688 | display the PC register of the current architecture, not the arch at | |
1689 | the time the display command was given. Therefore, we re-parse the | |
1690 | expression if the current architecture has changed. */ | |
1691 | if (d->exp != NULL && d->exp->gdbarch != get_current_arch ()) | |
1692 | { | |
1693 | xfree (d->exp); | |
1694 | d->exp = NULL; | |
1695 | d->block = NULL; | |
1696 | } | |
1697 | ||
a3247a22 PP |
1698 | if (d->exp == NULL) |
1699 | { | |
1700 | volatile struct gdb_exception ex; | |
ad3bbd48 | 1701 | |
a3247a22 PP |
1702 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1703 | { | |
1704 | innermost_block = NULL; | |
1705 | d->exp = parse_expression (d->exp_string); | |
1706 | d->block = innermost_block; | |
1707 | } | |
1708 | if (ex.reason < 0) | |
1709 | { | |
1710 | /* Can't re-parse the expression. Disable this display item. */ | |
1711 | d->enabled_p = 0; | |
1712 | warning (_("Unable to display \"%s\": %s"), | |
1713 | d->exp_string, ex.message); | |
1714 | return; | |
1715 | } | |
1716 | } | |
1717 | ||
c906108c | 1718 | if (d->block) |
6c95b8df PA |
1719 | { |
1720 | if (d->pspace == current_program_space) | |
1721 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1722 | else | |
1723 | within_current_scope = 0; | |
1724 | } | |
c906108c SS |
1725 | else |
1726 | within_current_scope = 1; | |
1727 | if (!within_current_scope) | |
1728 | return; | |
1729 | ||
9d8fa392 | 1730 | old_chain = make_cleanup_restore_integer (¤t_display_number); |
c906108c SS |
1731 | current_display_number = d->number; |
1732 | ||
1733 | annotate_display_begin (); | |
1734 | printf_filtered ("%d", d->number); | |
1735 | annotate_display_number_end (); | |
1736 | printf_filtered (": "); | |
1737 | if (d->format.size) | |
1738 | { | |
9d8fa392 | 1739 | volatile struct gdb_exception ex; |
c906108c SS |
1740 | |
1741 | annotate_display_format (); | |
1742 | ||
1743 | printf_filtered ("x/"); | |
1744 | if (d->format.count != 1) | |
1745 | printf_filtered ("%d", d->format.count); | |
1746 | printf_filtered ("%c", d->format.format); | |
1747 | if (d->format.format != 'i' && d->format.format != 's') | |
1748 | printf_filtered ("%c", d->format.size); | |
1749 | printf_filtered (" "); | |
1750 | ||
1751 | annotate_display_expression (); | |
1752 | ||
fa8a61dc | 1753 | puts_filtered (d->exp_string); |
c906108c SS |
1754 | annotate_display_expression_end (); |
1755 | ||
6a2eb474 | 1756 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1757 | printf_filtered ("\n"); |
1758 | else | |
1759 | printf_filtered (" "); | |
c5aa993b | 1760 | |
c906108c SS |
1761 | annotate_display_value (); |
1762 | ||
9d8fa392 PA |
1763 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
1764 | { | |
1765 | struct value *val; | |
1766 | CORE_ADDR addr; | |
1767 | ||
1768 | val = evaluate_expression (d->exp); | |
1769 | addr = value_as_address (val); | |
1770 | if (d->format.format == 'i') | |
1771 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); | |
1772 | do_examine (d->format, d->exp->gdbarch, addr); | |
1773 | } | |
1774 | if (ex.reason < 0) | |
1775 | fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message); | |
c906108c SS |
1776 | } |
1777 | else | |
1778 | { | |
79a45b7d | 1779 | struct value_print_options opts; |
9d8fa392 | 1780 | volatile struct gdb_exception ex; |
79a45b7d | 1781 | |
c906108c SS |
1782 | annotate_display_format (); |
1783 | ||
1784 | if (d->format.format) | |
1785 | printf_filtered ("/%c ", d->format.format); | |
1786 | ||
1787 | annotate_display_expression (); | |
1788 | ||
fa8a61dc | 1789 | puts_filtered (d->exp_string); |
c906108c SS |
1790 | annotate_display_expression_end (); |
1791 | ||
1792 | printf_filtered (" = "); | |
1793 | ||
1794 | annotate_display_expression (); | |
1795 | ||
79a45b7d | 1796 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1797 | opts.raw = d->format.raw; |
9d8fa392 PA |
1798 | |
1799 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
1800 | { | |
1801 | struct value *val; | |
1802 | ||
1803 | val = evaluate_expression (d->exp); | |
1804 | print_formatted (val, d->format.size, &opts, gdb_stdout); | |
1805 | } | |
1806 | if (ex.reason < 0) | |
1807 | fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message); | |
c906108c SS |
1808 | printf_filtered ("\n"); |
1809 | } | |
1810 | ||
1811 | annotate_display_end (); | |
1812 | ||
1813 | gdb_flush (gdb_stdout); | |
9d8fa392 | 1814 | do_cleanups (old_chain); |
c906108c SS |
1815 | } |
1816 | ||
1817 | /* Display all of the values on the auto-display chain which can be | |
1818 | evaluated in the current scope. */ | |
1819 | ||
1820 | void | |
fba45db2 | 1821 | do_displays (void) |
c906108c | 1822 | { |
52f0bd74 | 1823 | struct display *d; |
c906108c SS |
1824 | |
1825 | for (d = display_chain; d; d = d->next) | |
1826 | do_one_display (d); | |
1827 | } | |
1828 | ||
1829 | /* Delete the auto-display which we were in the process of displaying. | |
1830 | This is done when there is an error or a signal. */ | |
1831 | ||
1832 | void | |
fba45db2 | 1833 | disable_display (int num) |
c906108c | 1834 | { |
52f0bd74 | 1835 | struct display *d; |
c906108c SS |
1836 | |
1837 | for (d = display_chain; d; d = d->next) | |
1838 | if (d->number == num) | |
1839 | { | |
b5de0fa7 | 1840 | d->enabled_p = 0; |
c906108c SS |
1841 | return; |
1842 | } | |
a3f17187 | 1843 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1844 | } |
c5aa993b | 1845 | |
c906108c | 1846 | void |
fba45db2 | 1847 | disable_current_display (void) |
c906108c SS |
1848 | { |
1849 | if (current_display_number >= 0) | |
1850 | { | |
1851 | disable_display (current_display_number); | |
3e43a32a MS |
1852 | fprintf_unfiltered (gdb_stderr, |
1853 | _("Disabling display %d to " | |
1854 | "avoid infinite recursion.\n"), | |
c5aa993b | 1855 | current_display_number); |
c906108c SS |
1856 | } |
1857 | current_display_number = -1; | |
1858 | } | |
1859 | ||
1860 | static void | |
fba45db2 | 1861 | display_info (char *ignore, int from_tty) |
c906108c | 1862 | { |
52f0bd74 | 1863 | struct display *d; |
c906108c SS |
1864 | |
1865 | if (!display_chain) | |
a3f17187 | 1866 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1867 | else |
a3f17187 AC |
1868 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1869 | Num Enb Expression\n")); | |
c906108c SS |
1870 | |
1871 | for (d = display_chain; d; d = d->next) | |
1872 | { | |
b5de0fa7 | 1873 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1874 | if (d->format.size) |
1875 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1876 | d->format.format); |
c906108c SS |
1877 | else if (d->format.format) |
1878 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1879 | puts_filtered (d->exp_string); |
ae767bfb | 1880 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1881 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1882 | printf_filtered ("\n"); |
1883 | gdb_flush (gdb_stdout); | |
1884 | } | |
1885 | } | |
1886 | ||
c9174737 PA |
1887 | /* Callback fo map_display_numbers, that enables or disables the |
1888 | passed in display D. */ | |
1889 | ||
c906108c | 1890 | static void |
c9174737 | 1891 | do_enable_disable_display (struct display *d, void *data) |
c906108c | 1892 | { |
c9174737 PA |
1893 | d->enabled_p = *(int *) data; |
1894 | } | |
c906108c | 1895 | |
c9174737 PA |
1896 | /* Implamentation of both the "disable display" and "enable display" |
1897 | commands. ENABLE decides what to do. */ | |
1898 | ||
1899 | static void | |
1900 | enable_disable_display_command (char *args, int from_tty, int enable) | |
1901 | { | |
1902 | if (args == NULL) | |
c906108c | 1903 | { |
c9174737 | 1904 | struct display *d; |
c5aa993b | 1905 | |
c9174737 PA |
1906 | ALL_DISPLAYS (d) |
1907 | d->enabled_p = enable; | |
1908 | return; | |
1909 | } | |
c5aa993b | 1910 | |
c9174737 | 1911 | map_display_numbers (args, do_enable_disable_display, &enable); |
c906108c SS |
1912 | } |
1913 | ||
c9174737 PA |
1914 | /* The "enable display" command. */ |
1915 | ||
c906108c | 1916 | static void |
c9174737 | 1917 | enable_display_command (char *args, int from_tty) |
c906108c | 1918 | { |
c9174737 PA |
1919 | enable_disable_display_command (args, from_tty, 1); |
1920 | } | |
c5aa993b | 1921 | |
c9174737 | 1922 | /* The "disable display" command. */ |
c906108c | 1923 | |
c9174737 PA |
1924 | static void |
1925 | disable_display_command (char *args, int from_tty) | |
1926 | { | |
1927 | enable_disable_display_command (args, from_tty, 0); | |
c906108c | 1928 | } |
a3247a22 | 1929 | |
a3247a22 PP |
1930 | /* display_chain items point to blocks and expressions. Some expressions in |
1931 | turn may point to symbols. | |
1932 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1933 | obstack_free'd when a shared library is unloaded. | |
1934 | Clear pointers that are about to become dangling. | |
1935 | Both .exp and .block fields will be restored next time we need to display | |
1936 | an item by re-parsing .exp_string field in the new execution context. */ | |
1937 | ||
1938 | static void | |
1939 | clear_dangling_display_expressions (struct so_list *solib) | |
1940 | { | |
c0201579 | 1941 | struct objfile *objfile = solib->objfile; |
a3247a22 | 1942 | struct display *d; |
a3247a22 | 1943 | |
c0201579 JK |
1944 | /* With no symbol file we cannot have a block or expression from it. */ |
1945 | if (objfile == NULL) | |
1946 | return; | |
1947 | if (objfile->separate_debug_objfile_backlink) | |
1948 | objfile = objfile->separate_debug_objfile_backlink; | |
1949 | gdb_assert (objfile->pspace == solib->pspace); | |
1950 | ||
1951 | for (d = display_chain; d != NULL; d = d->next) | |
a3247a22 | 1952 | { |
c0201579 JK |
1953 | if (d->pspace != solib->pspace) |
1954 | continue; | |
1955 | ||
1956 | if (lookup_objfile_from_block (d->block) == objfile | |
1957 | || (d->exp && exp_uses_objfile (d->exp, objfile))) | |
1958 | { | |
1959 | xfree (d->exp); | |
1960 | d->exp = NULL; | |
1961 | d->block = NULL; | |
1962 | } | |
a3247a22 PP |
1963 | } |
1964 | } | |
c906108c | 1965 | \f |
c5aa993b | 1966 | |
675dcf4f | 1967 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1968 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1969 | name will be used. STREAM is the ui_file on which to print the | |
1970 | value. INDENT specifies the number of indent levels to print | |
1971 | before printing the variable name. */ | |
c906108c SS |
1972 | |
1973 | void | |
aad95b57 TT |
1974 | print_variable_and_value (const char *name, struct symbol *var, |
1975 | struct frame_info *frame, | |
1976 | struct ui_file *stream, int indent) | |
c906108c | 1977 | { |
0f6a939d | 1978 | volatile struct gdb_exception except; |
c906108c | 1979 | |
aad95b57 TT |
1980 | if (!name) |
1981 | name = SYMBOL_PRINT_NAME (var); | |
1982 | ||
1983 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
0f6a939d PM |
1984 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1985 | { | |
1986 | struct value *val; | |
1987 | struct value_print_options opts; | |
aad95b57 | 1988 | |
0f6a939d PM |
1989 | val = read_var_value (var, frame); |
1990 | get_user_print_options (&opts); | |
3343315b | 1991 | opts.deref_ref = 1; |
0f6a939d PM |
1992 | common_val_print (val, stream, indent, &opts, current_language); |
1993 | } | |
1994 | if (except.reason < 0) | |
1995 | fprintf_filtered(stream, "<error reading variable %s (%s)>", name, | |
1996 | except.message); | |
aad95b57 | 1997 | fprintf_filtered (stream, "\n"); |
c906108c SS |
1998 | } |
1999 | ||
a04b0428 JB |
2000 | /* printf "printf format string" ARG to STREAM. */ |
2001 | ||
2002 | static void | |
2003 | ui_printf (char *arg, struct ui_file *stream) | |
c906108c | 2004 | { |
52f0bd74 AC |
2005 | char *f = NULL; |
2006 | char *s = arg; | |
c906108c | 2007 | char *string = NULL; |
3d6d86c6 | 2008 | struct value **val_args; |
c906108c SS |
2009 | char *substrings; |
2010 | char *current_substring; | |
2011 | int nargs = 0; | |
2012 | int allocated_args = 20; | |
2013 | struct cleanup *old_cleanups; | |
2014 | ||
675dcf4f | 2015 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 2016 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2017 | |
2018 | if (s == 0) | |
e2e0b3e5 | 2019 | error_no_arg (_("format-control string and values to print")); |
c906108c | 2020 | |
e9cafbcc | 2021 | s = skip_spaces (s); |
c906108c | 2022 | |
675dcf4f | 2023 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 2024 | if (*s++ != '"') |
8a3fe4f8 | 2025 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
2026 | |
2027 | /* Parse the format-control string and copy it into the string STRING, | |
2028 | processing some kinds of escape sequence. */ | |
2029 | ||
2030 | f = string = (char *) alloca (strlen (s) + 1); | |
2031 | ||
2032 | while (*s != '"') | |
2033 | { | |
2034 | int c = *s++; | |
2035 | switch (c) | |
2036 | { | |
2037 | case '\0': | |
8a3fe4f8 | 2038 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
2039 | |
2040 | case '\\': | |
2041 | switch (c = *s++) | |
2042 | { | |
2043 | case '\\': | |
2044 | *f++ = '\\'; | |
2045 | break; | |
2046 | case 'a': | |
c906108c | 2047 | *f++ = '\a'; |
c906108c SS |
2048 | break; |
2049 | case 'b': | |
2050 | *f++ = '\b'; | |
2051 | break; | |
2052 | case 'f': | |
2053 | *f++ = '\f'; | |
2054 | break; | |
2055 | case 'n': | |
2056 | *f++ = '\n'; | |
2057 | break; | |
2058 | case 'r': | |
2059 | *f++ = '\r'; | |
2060 | break; | |
2061 | case 't': | |
2062 | *f++ = '\t'; | |
2063 | break; | |
2064 | case 'v': | |
2065 | *f++ = '\v'; | |
2066 | break; | |
2067 | case '"': | |
2068 | *f++ = '"'; | |
2069 | break; | |
2070 | default: | |
0df8b418 | 2071 | /* ??? TODO: handle other escape sequences. */ |
8a3fe4f8 | 2072 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
2073 | c); |
2074 | } | |
2075 | break; | |
2076 | ||
2077 | default: | |
2078 | *f++ = c; | |
2079 | } | |
2080 | } | |
2081 | ||
2082 | /* Skip over " and following space and comma. */ | |
2083 | s++; | |
2084 | *f++ = '\0'; | |
e9cafbcc | 2085 | s = skip_spaces (s); |
c906108c SS |
2086 | |
2087 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2088 | error (_("Invalid argument syntax")); |
c906108c | 2089 | |
c5aa993b JM |
2090 | if (*s == ',') |
2091 | s++; | |
e9cafbcc | 2092 | s = skip_spaces (s); |
c906108c SS |
2093 | |
2094 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2095 | substrings = alloca (strlen (string) * 2); | |
2096 | current_substring = substrings; | |
2097 | ||
2098 | { | |
2099 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2100 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2101 | something of the right size. */ | |
2102 | ||
c5aa993b JM |
2103 | enum argclass |
2104 | { | |
6c7a06a3 TT |
2105 | int_arg, long_arg, long_long_arg, ptr_arg, |
2106 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 2107 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 2108 | }; |
c906108c SS |
2109 | enum argclass *argclass; |
2110 | enum argclass this_argclass; | |
2111 | char *last_arg; | |
2112 | int nargs_wanted; | |
c906108c SS |
2113 | int i; |
2114 | ||
2115 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2116 | nargs_wanted = 0; | |
2117 | f = string; | |
2118 | last_arg = string; | |
2119 | while (*f) | |
2120 | if (*f++ == '%') | |
2121 | { | |
46e9880c DJ |
2122 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2123 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2124 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2125 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2126 | int bad = 0; |
2127 | ||
2128 | /* Check the validity of the format specifier, and work | |
2129 | out what argument it expects. We only accept C89 | |
2130 | format strings, with the exception of long long (which | |
2131 | we autoconf for). */ | |
2132 | ||
2133 | /* Skip over "%%". */ | |
2134 | if (*f == '%') | |
c906108c | 2135 | { |
c906108c | 2136 | f++; |
46e9880c | 2137 | continue; |
c906108c | 2138 | } |
46e9880c DJ |
2139 | |
2140 | /* The first part of a format specifier is a set of flag | |
2141 | characters. */ | |
2142 | while (strchr ("0-+ #", *f)) | |
2143 | { | |
2144 | if (*f == '#') | |
2145 | seen_hash = 1; | |
2146 | else if (*f == '0') | |
2147 | seen_zero = 1; | |
2148 | else if (*f == ' ') | |
2149 | seen_space = 1; | |
2150 | else if (*f == '+') | |
2151 | seen_plus = 1; | |
2152 | f++; | |
2153 | } | |
2154 | ||
2155 | /* The next part of a format specifier is a width. */ | |
2156 | while (strchr ("0123456789", *f)) | |
2157 | f++; | |
2158 | ||
2159 | /* The next part of a format specifier is a precision. */ | |
2160 | if (*f == '.') | |
2161 | { | |
2162 | seen_prec = 1; | |
2163 | f++; | |
2164 | while (strchr ("0123456789", *f)) | |
2165 | f++; | |
2166 | } | |
2167 | ||
2168 | /* The next part of a format specifier is a length modifier. */ | |
2169 | if (*f == 'h') | |
2170 | { | |
2171 | seen_h = 1; | |
2172 | f++; | |
2173 | } | |
2174 | else if (*f == 'l') | |
2175 | { | |
2176 | f++; | |
2177 | lcount++; | |
2178 | if (*f == 'l') | |
2179 | { | |
2180 | f++; | |
2181 | lcount++; | |
2182 | } | |
2183 | } | |
2184 | else if (*f == 'L') | |
2185 | { | |
2186 | seen_big_l = 1; | |
2187 | f++; | |
2188 | } | |
0aea4bf3 LM |
2189 | /* Decimal32 modifier. */ |
2190 | else if (*f == 'H') | |
2191 | { | |
2192 | seen_big_h = 1; | |
2193 | f++; | |
2194 | } | |
2195 | /* Decimal64 and Decimal128 modifiers. */ | |
2196 | else if (*f == 'D') | |
2197 | { | |
2198 | f++; | |
2199 | ||
2200 | /* Check for a Decimal128. */ | |
2201 | if (*f == 'D') | |
2202 | { | |
2203 | f++; | |
2204 | seen_double_big_d = 1; | |
2205 | } | |
2206 | else | |
2207 | seen_big_d = 1; | |
2208 | } | |
46e9880c | 2209 | |
c906108c SS |
2210 | switch (*f) |
2211 | { | |
46e9880c DJ |
2212 | case 'u': |
2213 | if (seen_hash) | |
2214 | bad = 1; | |
2215 | /* FALLTHROUGH */ | |
2216 | ||
2217 | case 'o': | |
2218 | case 'x': | |
2219 | case 'X': | |
2220 | if (seen_space || seen_plus) | |
2221 | bad = 1; | |
2222 | /* FALLTHROUGH */ | |
2223 | ||
2224 | case 'd': | |
2225 | case 'i': | |
2226 | if (lcount == 0) | |
2227 | this_argclass = int_arg; | |
2228 | else if (lcount == 1) | |
2229 | this_argclass = long_arg; | |
2230 | else | |
2231 | this_argclass = long_long_arg; | |
2232 | ||
2233 | if (seen_big_l) | |
2234 | bad = 1; | |
2235 | break; | |
2236 | ||
2237 | case 'c': | |
6c7a06a3 TT |
2238 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2239 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2240 | bad = 1; |
2241 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2242 | bad = 1; | |
2243 | break; | |
2244 | ||
2245 | case 'p': | |
2246 | this_argclass = ptr_arg; | |
2247 | if (lcount || seen_h || seen_big_l) | |
2248 | bad = 1; | |
2249 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2250 | bad = 1; | |
2251 | break; | |
2252 | ||
c906108c | 2253 | case 's': |
6c7a06a3 TT |
2254 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2255 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2256 | bad = 1; |
2257 | if (seen_zero || seen_space || seen_plus) | |
2258 | bad = 1; | |
c906108c SS |
2259 | break; |
2260 | ||
2261 | case 'e': | |
2262 | case 'f': | |
2263 | case 'g': | |
46e9880c DJ |
2264 | case 'E': |
2265 | case 'G': | |
0aea4bf3 LM |
2266 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2267 | this_argclass = decfloat_arg; | |
2268 | else if (seen_big_l) | |
46e9880c DJ |
2269 | this_argclass = long_double_arg; |
2270 | else | |
2271 | this_argclass = double_arg; | |
2272 | ||
2273 | if (lcount || seen_h) | |
2274 | bad = 1; | |
c906108c SS |
2275 | break; |
2276 | ||
2277 | case '*': | |
8a3fe4f8 | 2278 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2279 | |
2280 | case 'n': | |
8a3fe4f8 | 2281 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2282 | |
46e9880c DJ |
2283 | case '\0': |
2284 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2285 | |
2286 | default: | |
46e9880c | 2287 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2288 | } |
46e9880c DJ |
2289 | |
2290 | if (bad) | |
3e43a32a MS |
2291 | error (_("Inappropriate modifiers to " |
2292 | "format specifier '%c' in printf"), | |
46e9880c DJ |
2293 | *f); |
2294 | ||
c906108c | 2295 | f++; |
09d71d23 AS |
2296 | |
2297 | if (lcount > 1 && USE_PRINTF_I64) | |
2298 | { | |
2299 | /* Windows' printf does support long long, but not the usual way. | |
2300 | Convert %lld to %I64d. */ | |
2301 | int length_before_ll = f - last_arg - 1 - lcount; | |
ad3bbd48 | 2302 | |
09d71d23 AS |
2303 | strncpy (current_substring, last_arg, length_before_ll); |
2304 | strcpy (current_substring + length_before_ll, "I64"); | |
2305 | current_substring[length_before_ll + 3] = | |
2306 | last_arg[length_before_ll + lcount]; | |
2307 | current_substring += length_before_ll + 4; | |
2308 | } | |
6c7a06a3 TT |
2309 | else if (this_argclass == wide_string_arg |
2310 | || this_argclass == wide_char_arg) | |
2311 | { | |
2312 | /* Convert %ls or %lc to %s. */ | |
2313 | int length_before_ls = f - last_arg - 2; | |
ad3bbd48 | 2314 | |
6c7a06a3 TT |
2315 | strncpy (current_substring, last_arg, length_before_ls); |
2316 | strcpy (current_substring + length_before_ls, "s"); | |
2317 | current_substring += length_before_ls + 2; | |
2318 | } | |
09d71d23 AS |
2319 | else |
2320 | { | |
2321 | strncpy (current_substring, last_arg, f - last_arg); | |
2322 | current_substring += f - last_arg; | |
2323 | } | |
46e9880c DJ |
2324 | *current_substring++ = '\0'; |
2325 | last_arg = f; | |
2326 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2327 | } |
2328 | ||
2329 | /* Now, parse all arguments and evaluate them. | |
2330 | Store the VALUEs in VAL_ARGS. */ | |
2331 | ||
2332 | while (*s != '\0') | |
2333 | { | |
2334 | char *s1; | |
ad3bbd48 | 2335 | |
c906108c | 2336 | if (nargs == allocated_args) |
f976f6d4 AC |
2337 | val_args = (struct value **) xrealloc ((char *) val_args, |
2338 | (allocated_args *= 2) | |
2339 | * sizeof (struct value *)); | |
a04b0428 JB |
2340 | s1 = s; |
2341 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2342 | |
c906108c SS |
2343 | nargs++; |
2344 | s = s1; | |
2345 | if (*s == ',') | |
2346 | s++; | |
2347 | } | |
c5aa993b | 2348 | |
c906108c | 2349 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2350 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2351 | |
2352 | /* Now actually print them. */ | |
2353 | current_substring = substrings; | |
2354 | for (i = 0; i < nargs; i++) | |
2355 | { | |
2356 | switch (argclass[i]) | |
2357 | { | |
2358 | case string_arg: | |
2359 | { | |
777ea8f1 | 2360 | gdb_byte *str; |
c906108c SS |
2361 | CORE_ADDR tem; |
2362 | int j; | |
ad3bbd48 | 2363 | |
1aa20aa8 | 2364 | tem = value_as_address (val_args[i]); |
c906108c SS |
2365 | |
2366 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2367 | for (j = 0;; j++) |
c906108c | 2368 | { |
777ea8f1 | 2369 | gdb_byte c; |
ad3bbd48 | 2370 | |
c906108c | 2371 | QUIT; |
d4b2399a | 2372 | read_memory (tem + j, &c, 1); |
c906108c SS |
2373 | if (c == 0) |
2374 | break; | |
2375 | } | |
2376 | ||
2377 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2378 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2379 | if (j != 0) |
2380 | read_memory (tem, str, j); | |
c906108c SS |
2381 | str[j] = 0; |
2382 | ||
f1421989 | 2383 | fprintf_filtered (stream, current_substring, (char *) str); |
c906108c SS |
2384 | } |
2385 | break; | |
6c7a06a3 TT |
2386 | case wide_string_arg: |
2387 | { | |
2388 | gdb_byte *str; | |
2389 | CORE_ADDR tem; | |
2390 | int j; | |
50810684 UW |
2391 | struct gdbarch *gdbarch |
2392 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2393 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2394 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2395 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2396 | int wcwidth = TYPE_LENGTH (wctype); |
2397 | gdb_byte *buf = alloca (wcwidth); | |
2398 | struct obstack output; | |
2399 | struct cleanup *inner_cleanup; | |
2400 | ||
2401 | tem = value_as_address (val_args[i]); | |
2402 | ||
2403 | /* This is a %s argument. Find the length of the string. */ | |
2404 | for (j = 0;; j += wcwidth) | |
2405 | { | |
2406 | QUIT; | |
2407 | read_memory (tem + j, buf, wcwidth); | |
e17a4113 | 2408 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) |
6c7a06a3 TT |
2409 | break; |
2410 | } | |
2411 | ||
2412 | /* Copy the string contents into a string inside GDB. */ | |
2413 | str = (gdb_byte *) alloca (j + wcwidth); | |
2414 | if (j != 0) | |
2415 | read_memory (tem, str, j); | |
2416 | memset (&str[j], 0, wcwidth); | |
2417 | ||
2418 | obstack_init (&output); | |
2419 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2420 | ||
f870a310 | 2421 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2422 | host_charset (), |
2423 | str, j, wcwidth, | |
2424 | &output, translit_char); | |
2425 | obstack_grow_str0 (&output, ""); | |
2426 | ||
f1421989 HZ |
2427 | fprintf_filtered (stream, current_substring, |
2428 | obstack_base (&output)); | |
6c7a06a3 TT |
2429 | do_cleanups (inner_cleanup); |
2430 | } | |
2431 | break; | |
2432 | case wide_char_arg: | |
2433 | { | |
50810684 UW |
2434 | struct gdbarch *gdbarch |
2435 | = get_type_arch (value_type (val_args[i])); | |
2436 | struct type *wctype = lookup_typename (current_language, gdbarch, | |
e6c014f2 | 2437 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2438 | struct type *valtype; |
2439 | struct obstack output; | |
2440 | struct cleanup *inner_cleanup; | |
2441 | const gdb_byte *bytes; | |
2442 | ||
2443 | valtype = value_type (val_args[i]); | |
2444 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2445 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2446 | error (_("expected wchar_t argument for %%lc")); | |
2447 | ||
2448 | bytes = value_contents (val_args[i]); | |
2449 | ||
2450 | obstack_init (&output); | |
2451 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2452 | ||
f870a310 | 2453 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2454 | host_charset (), |
2455 | bytes, TYPE_LENGTH (valtype), | |
2456 | TYPE_LENGTH (valtype), | |
2457 | &output, translit_char); | |
2458 | obstack_grow_str0 (&output, ""); | |
2459 | ||
f1421989 HZ |
2460 | fprintf_filtered (stream, current_substring, |
2461 | obstack_base (&output)); | |
6c7a06a3 TT |
2462 | do_cleanups (inner_cleanup); |
2463 | } | |
2464 | break; | |
c906108c SS |
2465 | case double_arg: |
2466 | { | |
b806fb9a UW |
2467 | struct type *type = value_type (val_args[i]); |
2468 | DOUBLEST val; | |
2469 | int inv; | |
2470 | ||
2471 | /* If format string wants a float, unchecked-convert the value | |
2472 | to floating point of the same size. */ | |
50810684 | 2473 | type = float_type_from_length (type); |
b806fb9a UW |
2474 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2475 | if (inv) | |
2476 | error (_("Invalid floating value found in program.")); | |
2477 | ||
f1421989 | 2478 | fprintf_filtered (stream, current_substring, (double) val); |
c906108c SS |
2479 | break; |
2480 | } | |
46e9880c DJ |
2481 | case long_double_arg: |
2482 | #ifdef HAVE_LONG_DOUBLE | |
2483 | { | |
b806fb9a UW |
2484 | struct type *type = value_type (val_args[i]); |
2485 | DOUBLEST val; | |
2486 | int inv; | |
2487 | ||
2488 | /* If format string wants a float, unchecked-convert the value | |
2489 | to floating point of the same size. */ | |
50810684 | 2490 | type = float_type_from_length (type); |
b806fb9a UW |
2491 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2492 | if (inv) | |
2493 | error (_("Invalid floating value found in program.")); | |
2494 | ||
f1421989 HZ |
2495 | fprintf_filtered (stream, current_substring, |
2496 | (long double) val); | |
46e9880c DJ |
2497 | break; |
2498 | } | |
2499 | #else | |
2500 | error (_("long double not supported in printf")); | |
2501 | #endif | |
c906108c SS |
2502 | case long_long_arg: |
2503 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2504 | { | |
2505 | long long val = value_as_long (val_args[i]); | |
ad3bbd48 | 2506 | |
f1421989 | 2507 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2508 | break; |
2509 | } | |
2510 | #else | |
8a3fe4f8 | 2511 | error (_("long long not supported in printf")); |
c906108c SS |
2512 | #endif |
2513 | case int_arg: | |
2514 | { | |
46e9880c | 2515 | int val = value_as_long (val_args[i]); |
ad3bbd48 | 2516 | |
f1421989 | 2517 | fprintf_filtered (stream, current_substring, val); |
46e9880c DJ |
2518 | break; |
2519 | } | |
2520 | case long_arg: | |
2521 | { | |
c906108c | 2522 | long val = value_as_long (val_args[i]); |
ad3bbd48 | 2523 | |
f1421989 | 2524 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2525 | break; |
2526 | } | |
1a619819 | 2527 | |
0aea4bf3 LM |
2528 | /* Handles decimal floating values. */ |
2529 | case decfloat_arg: | |
1a619819 | 2530 | { |
0aea4bf3 | 2531 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
ad3bbd48 | 2532 | |
1a619819 | 2533 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2534 | /* If we have native support for Decimal floating |
2535 | printing, handle it here. */ | |
f1421989 | 2536 | fprintf_filtered (stream, current_substring, param_ptr); |
1a619819 | 2537 | #else |
1a619819 LM |
2538 | |
2539 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2540 | we convert the DFP values to string and print them using |
2541 | the %s format specifier. */ | |
2542 | ||
2543 | char *eos, *sos; | |
2544 | int nnull_chars = 0; | |
2545 | ||
2546 | /* Parameter data. */ | |
2547 | struct type *param_type = value_type (val_args[i]); | |
2548 | unsigned int param_len = TYPE_LENGTH (param_type); | |
50810684 | 2549 | struct gdbarch *gdbarch = get_type_arch (param_type); |
e17a4113 | 2550 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0aea4bf3 LM |
2551 | |
2552 | /* DFP output data. */ | |
2553 | struct value *dfp_value = NULL; | |
2554 | gdb_byte *dfp_ptr; | |
2555 | int dfp_len = 16; | |
2556 | gdb_byte dec[16]; | |
2557 | struct type *dfp_type = NULL; | |
2558 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2559 | |
2560 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2561 | and check for DFP length modifiers. */ |
1a619819 LM |
2562 | eos = current_substring + strlen (current_substring); |
2563 | ||
0aea4bf3 LM |
2564 | /* Look for the float/double format specifier. */ |
2565 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2566 | && *eos != 'g' && *eos != 'G') | |
2567 | eos--; | |
2568 | ||
2569 | sos = eos; | |
2570 | ||
2571 | /* Search for the '%' char and extract the size and type of | |
2572 | the output decimal value based on its modifiers | |
2573 | (%Hf, %Df, %DDf). */ | |
2574 | while (*--sos != '%') | |
2575 | { | |
2576 | if (*sos == 'H') | |
2577 | { | |
2578 | dfp_len = 4; | |
50810684 | 2579 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; |
0aea4bf3 LM |
2580 | } |
2581 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2582 | { | |
2583 | dfp_len = 16; | |
50810684 | 2584 | dfp_type = builtin_type (gdbarch)->builtin_declong; |
0aea4bf3 LM |
2585 | sos--; |
2586 | } | |
2587 | else | |
2588 | { | |
2589 | dfp_len = 8; | |
50810684 | 2590 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; |
0aea4bf3 LM |
2591 | } |
2592 | } | |
2593 | ||
2594 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2595 | *++sos = 's'; | |
2596 | ||
2597 | /* Go through the whole format string and pull the correct | |
2598 | number of chars back to compensate for the change in the | |
2599 | format specifier. */ | |
2600 | while (nnull_chars < nargs - i) | |
2601 | { | |
2602 | if (*eos == '\0') | |
2603 | nnull_chars++; | |
2604 | ||
2605 | *++sos = *++eos; | |
2606 | } | |
2607 | ||
2608 | /* Conversion between different DFP types. */ | |
2609 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
e17a4113 UW |
2610 | decimal_convert (param_ptr, param_len, byte_order, |
2611 | dec, dfp_len, byte_order); | |
0aea4bf3 LM |
2612 | else |
2613 | /* If this is a non-trivial conversion, just output 0. | |
2614 | A correct converted value can be displayed by explicitly | |
2615 | casting to a DFP type. */ | |
e17a4113 | 2616 | decimal_from_string (dec, dfp_len, byte_order, "0"); |
0aea4bf3 LM |
2617 | |
2618 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2619 | ||
2620 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2621 | ||
e17a4113 | 2622 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); |
1a619819 LM |
2623 | |
2624 | /* Print the DFP value. */ | |
f1421989 | 2625 | fprintf_filtered (stream, current_substring, decstr); |
0aea4bf3 | 2626 | |
1a619819 LM |
2627 | break; |
2628 | #endif | |
2629 | } | |
2630 | ||
2025a643 DJ |
2631 | case ptr_arg: |
2632 | { | |
2633 | /* We avoid the host's %p because pointers are too | |
2634 | likely to be the wrong size. The only interesting | |
2635 | modifier for %p is a width; extract that, and then | |
2636 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2637 | ||
2638 | char *p, *fmt, *fmt_p; | |
2639 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2640 | long long val = value_as_long (val_args[i]); | |
2641 | #else | |
2642 | long val = value_as_long (val_args[i]); | |
2643 | #endif | |
2644 | ||
2645 | fmt = alloca (strlen (current_substring) + 5); | |
2646 | ||
2647 | /* Copy up to the leading %. */ | |
2648 | p = current_substring; | |
2649 | fmt_p = fmt; | |
2650 | while (*p) | |
2651 | { | |
2652 | int is_percent = (*p == '%'); | |
ad3bbd48 | 2653 | |
2025a643 DJ |
2654 | *fmt_p++ = *p++; |
2655 | if (is_percent) | |
2656 | { | |
2657 | if (*p == '%') | |
2658 | *fmt_p++ = *p++; | |
2659 | else | |
2660 | break; | |
2661 | } | |
2662 | } | |
2663 | ||
2664 | if (val != 0) | |
2665 | *fmt_p++ = '#'; | |
2666 | ||
2667 | /* Copy any width. */ | |
2668 | while (*p >= '0' && *p < '9') | |
2669 | *fmt_p++ = *p++; | |
2670 | ||
2671 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2672 | if (val != 0) | |
2673 | { | |
2674 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2675 | *fmt_p++ = 'l'; | |
2676 | #endif | |
2677 | *fmt_p++ = 'l'; | |
2678 | *fmt_p++ = 'x'; | |
2679 | *fmt_p++ = '\0'; | |
f1421989 | 2680 | fprintf_filtered (stream, fmt, val); |
2025a643 DJ |
2681 | } |
2682 | else | |
2683 | { | |
2684 | *fmt_p++ = 's'; | |
2685 | *fmt_p++ = '\0'; | |
f1421989 | 2686 | fprintf_filtered (stream, fmt, "(nil)"); |
2025a643 DJ |
2687 | } |
2688 | ||
2689 | break; | |
2690 | } | |
675dcf4f MK |
2691 | default: |
2692 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2693 | _("failed internal consistency check")); |
c906108c SS |
2694 | } |
2695 | /* Skip to the next substring. */ | |
2696 | current_substring += strlen (current_substring) + 1; | |
2697 | } | |
a0e0ef55 TT |
2698 | /* Print the portion of the format string after the last argument. |
2699 | Note that this will not include any ordinary %-specs, but it | |
2700 | might include "%%". That is why we use printf_filtered and not | |
1b93ff13 TT |
2701 | puts_filtered here. Also, we pass a dummy argument because |
2702 | some platforms have modified GCC to include -Wformat-security | |
2703 | by default, which will warn here if there is no argument. */ | |
f1421989 | 2704 | fprintf_filtered (stream, last_arg, 0); |
c906108c SS |
2705 | } |
2706 | do_cleanups (old_cleanups); | |
2707 | } | |
c906108c | 2708 | |
f1421989 HZ |
2709 | /* Implement the "printf" command. */ |
2710 | ||
a04b0428 | 2711 | static void |
f1421989 HZ |
2712 | printf_command (char *arg, int from_tty) |
2713 | { | |
a04b0428 | 2714 | ui_printf (arg, gdb_stdout); |
f1421989 HZ |
2715 | } |
2716 | ||
2717 | /* Implement the "eval" command. */ | |
2718 | ||
2719 | static void | |
2720 | eval_command (char *arg, int from_tty) | |
2721 | { | |
2722 | struct ui_file *ui_out = mem_fileopen (); | |
2723 | struct cleanup *cleanups = make_cleanup_ui_file_delete (ui_out); | |
2724 | char *expanded; | |
2725 | ||
a04b0428 | 2726 | ui_printf (arg, ui_out); |
f1421989 HZ |
2727 | |
2728 | expanded = ui_file_xstrdup (ui_out, NULL); | |
2729 | make_cleanup (xfree, expanded); | |
2730 | ||
2731 | execute_command (expanded, from_tty); | |
2732 | ||
2733 | do_cleanups (cleanups); | |
2734 | } | |
2735 | ||
c906108c | 2736 | void |
fba45db2 | 2737 | _initialize_printcmd (void) |
c906108c | 2738 | { |
c94fdfd0 EZ |
2739 | struct cmd_list_element *c; |
2740 | ||
c906108c SS |
2741 | current_display_number = -1; |
2742 | ||
a3247a22 PP |
2743 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2744 | ||
c906108c | 2745 | add_info ("address", address_info, |
1bedd215 | 2746 | _("Describe where symbol SYM is stored.")); |
c906108c | 2747 | |
1bedd215 AC |
2748 | add_info ("symbol", sym_info, _("\ |
2749 | Describe what symbol is at location ADDR.\n\ | |
2750 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2751 | |
1bedd215 AC |
2752 | add_com ("x", class_vars, x_command, _("\ |
2753 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2754 | ADDRESS is an expression for the memory address to examine.\n\ |
2755 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2756 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2757 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2758 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2759 | The specified number of objects of the specified size are printed\n\ |
2760 | according to the format.\n\n\ | |
2761 | Defaults for format and size letters are those previously used.\n\ | |
2762 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2763 | with this command or \"print\".")); |
c906108c | 2764 | |
c906108c SS |
2765 | #if 0 |
2766 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2767 | _("Print line number and file of definition of variable.")); |
c906108c | 2768 | #endif |
c5aa993b | 2769 | |
1bedd215 AC |
2770 | add_info ("display", display_info, _("\ |
2771 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2772 | |
1a966eab AC |
2773 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2774 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2775 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2776 | No argument means cancel all automatic-display expressions.\n\ | |
2777 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2778 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2779 | &cmdlist); |
c906108c | 2780 | |
1bedd215 AC |
2781 | add_com ("display", class_vars, display_command, _("\ |
2782 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2783 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2784 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2785 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2786 | and examining is done as in the \"x\" command.\n\n\ | |
2787 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2788 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2789 | |
c9174737 | 2790 | add_cmd ("display", class_vars, enable_display_command, _("\ |
1a966eab | 2791 | Enable some expressions to be displayed when program stops.\n\ |
c906108c SS |
2792 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2793 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2794 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2795 | |
1a966eab AC |
2796 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2797 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2798 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2799 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2800 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2801 | |
1a966eab AC |
2802 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2803 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2804 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2805 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2806 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2807 | |
1bedd215 AC |
2808 | add_com ("printf", class_vars, printf_command, _("\ |
2809 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2810 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2811 | |
1bedd215 AC |
2812 | add_com ("output", class_vars, output_command, _("\ |
2813 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2814 | This is useful in user-defined commands.")); | |
c906108c | 2815 | |
1bedd215 AC |
2816 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2817 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2818 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2819 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2820 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2821 | variable in the program being debugged. EXP is any valid expression.\n\ |
2822 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2823 | \n\ | |
2824 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2825 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2826 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2827 | if (dbx_commands) |
1bedd215 AC |
2828 | add_com ("assign", class_vars, set_command, _("\ |
2829 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2830 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2831 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2832 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2833 | variable in the program being debugged. EXP is any valid expression.\n\ |
2834 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2835 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2836 | You can see these environment settings with the \"show\" command.")); |
c906108c | 2837 | |
0df8b418 | 2838 | /* "call" is the same as "set", but handy for dbx users to call fns. */ |
1bedd215 AC |
2839 | c = add_com ("call", class_vars, call_command, _("\ |
2840 | Call a function in the program.\n\ | |
c906108c SS |
2841 | The argument is the function name and arguments, in the notation of the\n\ |
2842 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2843 | history, if it is not void.")); |
65d12d83 | 2844 | set_cmd_completer (c, expression_completer); |
c906108c | 2845 | |
1a966eab AC |
2846 | add_cmd ("variable", class_vars, set_command, _("\ |
2847 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2848 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2849 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2850 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2851 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2852 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2853 | &setlist); |
c906108c | 2854 | |
1bedd215 AC |
2855 | c = add_com ("print", class_vars, print_command, _("\ |
2856 | Print value of expression EXP.\n\ | |
c906108c SS |
2857 | Variables accessible are those of the lexical environment of the selected\n\ |
2858 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2859 | \n\ | |
2860 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2861 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2862 | Names starting with $ refer to registers (with the values they would have\n\ |
2863 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2864 | all registers saved by frames farther in) or else to debugger\n\ |
2865 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2866 | Use assignment expressions to give values to convenience variables.\n\ |
2867 | \n\ | |
c906108c SS |
2868 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2869 | @ is a binary operator for treating consecutive data objects\n\ | |
2870 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2871 | element is FOO, whose second element is stored in the space following\n\ | |
2872 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2873 | resides in memory.\n\ |
2874 | \n\ | |
c906108c | 2875 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2876 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2877 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2878 | add_com_alias ("p", "print", class_vars, 1); |
2879 | ||
1bedd215 AC |
2880 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2881 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2882 | environment, the value is printed in its own window.")); | |
65d12d83 | 2883 | set_cmd_completer (c, expression_completer); |
c906108c | 2884 | |
35096d9d AC |
2885 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2886 | &max_symbolic_offset, _("\ | |
2887 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2888 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2889 | NULL, | |
920d2a44 | 2890 | show_max_symbolic_offset, |
35096d9d | 2891 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2892 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2893 | &print_symbol_filename, _("\ | |
2894 | Set printing of source filename and line number with <symbol>."), _("\ | |
2895 | Show printing of source filename and line number with <symbol>."), NULL, | |
2896 | NULL, | |
920d2a44 | 2897 | show_print_symbol_filename, |
5bf193a2 | 2898 | &setprintlist, &showprintlist); |
f1421989 HZ |
2899 | |
2900 | add_com ("eval", no_class, eval_command, _("\ | |
2901 | Convert \"printf format string\", arg1, arg2, arg3, ..., argn to\n\ | |
2902 | a command line, and call it.")); | |
c906108c | 2903 | } |