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 | |
9cb709b6 TT |
571 | settings of the demangle and asm_demangle variables. Returns |
572 | non-zero if anything was printed; zero otherwise. */ | |
c906108c | 573 | |
9cb709b6 | 574 | int |
22e722e1 DJ |
575 | print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr, |
576 | struct ui_file *stream, | |
675dcf4f | 577 | int do_demangle, char *leadin) |
dfcd3bfb JM |
578 | { |
579 | char *name = NULL; | |
580 | char *filename = NULL; | |
581 | int unmapped = 0; | |
582 | int offset = 0; | |
583 | int line = 0; | |
584 | ||
675dcf4f | 585 | /* Throw away both name and filename. */ |
2f9429ae AC |
586 | struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &name); |
587 | make_cleanup (free_current_contents, &filename); | |
dfcd3bfb | 588 | |
22e722e1 | 589 | if (build_address_symbolic (gdbarch, addr, do_demangle, &name, &offset, |
675dcf4f | 590 | &filename, &line, &unmapped)) |
2f9429ae AC |
591 | { |
592 | do_cleanups (cleanup_chain); | |
9cb709b6 | 593 | return 0; |
2f9429ae | 594 | } |
dfcd3bfb JM |
595 | |
596 | fputs_filtered (leadin, stream); | |
597 | if (unmapped) | |
598 | fputs_filtered ("<*", stream); | |
599 | else | |
600 | fputs_filtered ("<", stream); | |
601 | fputs_filtered (name, stream); | |
602 | if (offset != 0) | |
603 | fprintf_filtered (stream, "+%u", (unsigned int) offset); | |
604 | ||
605 | /* Append source filename and line number if desired. Give specific | |
606 | line # of this addr, if we have it; else line # of the nearest symbol. */ | |
607 | if (print_symbol_filename && filename != NULL) | |
608 | { | |
609 | if (line != -1) | |
610 | fprintf_filtered (stream, " at %s:%d", filename, line); | |
611 | else | |
612 | fprintf_filtered (stream, " in %s", filename); | |
613 | } | |
614 | if (unmapped) | |
615 | fputs_filtered ("*>", stream); | |
616 | else | |
617 | fputs_filtered (">", stream); | |
618 | ||
619 | do_cleanups (cleanup_chain); | |
9cb709b6 | 620 | return 1; |
dfcd3bfb JM |
621 | } |
622 | ||
623 | /* Given an address ADDR return all the elements needed to print the | |
0df8b418 | 624 | address in a symbolic form. NAME can be mangled or not depending |
dfcd3bfb | 625 | on DO_DEMANGLE (and also on the asm_demangle global variable, |
0df8b418 MS |
626 | manipulated via ''set print asm-demangle''). Return 0 in case of |
627 | success, when all the info in the OUT paramters is valid. Return 1 | |
628 | otherwise. */ | |
dfcd3bfb | 629 | int |
22e722e1 DJ |
630 | build_address_symbolic (struct gdbarch *gdbarch, |
631 | CORE_ADDR addr, /* IN */ | |
dfcd3bfb JM |
632 | int do_demangle, /* IN */ |
633 | char **name, /* OUT */ | |
634 | int *offset, /* OUT */ | |
635 | char **filename, /* OUT */ | |
636 | int *line, /* OUT */ | |
637 | int *unmapped) /* OUT */ | |
c906108c SS |
638 | { |
639 | struct minimal_symbol *msymbol; | |
640 | struct symbol *symbol; | |
c906108c | 641 | CORE_ADDR name_location = 0; |
714835d5 | 642 | struct obj_section *section = NULL; |
0d5cff50 | 643 | const char *name_temp = ""; |
dfcd3bfb | 644 | |
89c83b10 | 645 | /* Let's say it is mapped (not unmapped). */ |
dfcd3bfb | 646 | *unmapped = 0; |
c906108c | 647 | |
dfcd3bfb | 648 | /* Determine if the address is in an overlay, and whether it is |
675dcf4f | 649 | mapped. */ |
c906108c SS |
650 | if (overlay_debugging) |
651 | { | |
652 | section = find_pc_overlay (addr); | |
653 | if (pc_in_unmapped_range (addr, section)) | |
654 | { | |
dfcd3bfb | 655 | *unmapped = 1; |
c906108c SS |
656 | addr = overlay_mapped_address (addr, section); |
657 | } | |
658 | } | |
659 | ||
c906108c SS |
660 | /* First try to find the address in the symbol table, then |
661 | in the minsyms. Take the closest one. */ | |
662 | ||
663 | /* This is defective in the sense that it only finds text symbols. So | |
664 | really this is kind of pointless--we should make sure that the | |
665 | minimal symbols have everything we need (by changing that we could | |
666 | save some memory, but for many debug format--ELF/DWARF or | |
667 | anything/stabs--it would be inconvenient to eliminate those minimal | |
668 | symbols anyway). */ | |
669 | msymbol = lookup_minimal_symbol_by_pc_section (addr, section); | |
670 | symbol = find_pc_sect_function (addr, section); | |
671 | ||
672 | if (symbol) | |
673 | { | |
22e722e1 DJ |
674 | /* If this is a function (i.e. a code address), strip out any |
675 | non-address bits. For instance, display a pointer to the | |
676 | first instruction of a Thumb function as <function>; the | |
677 | second instruction will be <function+2>, even though the | |
678 | pointer is <function+3>. This matches the ISA behavior. */ | |
679 | addr = gdbarch_addr_bits_remove (gdbarch, addr); | |
680 | ||
c906108c | 681 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); |
406fc7fb | 682 | if (do_demangle || asm_demangle) |
de5ad195 | 683 | name_temp = SYMBOL_PRINT_NAME (symbol); |
c906108c | 684 | else |
3567439c | 685 | name_temp = SYMBOL_LINKAGE_NAME (symbol); |
c906108c SS |
686 | } |
687 | ||
9cb709b6 TT |
688 | if (msymbol != NULL |
689 | && MSYMBOL_SIZE (msymbol) == 0 | |
690 | && MSYMBOL_TYPE (msymbol) != mst_text | |
691 | && MSYMBOL_TYPE (msymbol) != mst_text_gnu_ifunc | |
692 | && MSYMBOL_TYPE (msymbol) != mst_file_text) | |
693 | msymbol = NULL; | |
694 | ||
c906108c SS |
695 | if (msymbol != NULL) |
696 | { | |
697 | if (SYMBOL_VALUE_ADDRESS (msymbol) > name_location || symbol == NULL) | |
698 | { | |
699 | /* The msymbol is closer to the address than the symbol; | |
700 | use the msymbol instead. */ | |
701 | symbol = 0; | |
c906108c | 702 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); |
406fc7fb | 703 | if (do_demangle || asm_demangle) |
de5ad195 | 704 | name_temp = SYMBOL_PRINT_NAME (msymbol); |
c906108c | 705 | else |
3567439c | 706 | name_temp = SYMBOL_LINKAGE_NAME (msymbol); |
c906108c SS |
707 | } |
708 | } | |
709 | if (symbol == NULL && msymbol == NULL) | |
dfcd3bfb | 710 | return 1; |
c906108c | 711 | |
c906108c SS |
712 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
713 | ||
714 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
715 | CORE_ADDR. But when we detect unsigned wraparound in the | |
716 | CORE_ADDR math, we ignore this test and print the offset, | |
717 | because addr+max_symbolic_offset has wrapped through the end | |
718 | of the address space back to the beginning, giving bogus comparison. */ | |
719 | if (addr > name_location + max_symbolic_offset | |
720 | && name_location + max_symbolic_offset > name_location) | |
dfcd3bfb | 721 | return 1; |
c906108c | 722 | |
dfcd3bfb JM |
723 | *offset = addr - name_location; |
724 | ||
725 | *name = xstrdup (name_temp); | |
c906108c | 726 | |
c906108c SS |
727 | if (print_symbol_filename) |
728 | { | |
729 | struct symtab_and_line sal; | |
730 | ||
731 | sal = find_pc_sect_line (addr, section, 0); | |
732 | ||
733 | if (sal.symtab) | |
dfcd3bfb JM |
734 | { |
735 | *filename = xstrdup (sal.symtab->filename); | |
736 | *line = sal.line; | |
737 | } | |
c906108c | 738 | } |
dfcd3bfb | 739 | return 0; |
c906108c SS |
740 | } |
741 | ||
c906108c SS |
742 | |
743 | /* Print address ADDR symbolically on STREAM. | |
744 | First print it as a number. Then perhaps print | |
745 | <SYMBOL + OFFSET> after the number. */ | |
746 | ||
747 | void | |
5af949e3 UW |
748 | print_address (struct gdbarch *gdbarch, |
749 | CORE_ADDR addr, struct ui_file *stream) | |
c906108c | 750 | { |
5af949e3 | 751 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 752 | print_address_symbolic (gdbarch, addr, stream, asm_demangle, " "); |
c906108c SS |
753 | } |
754 | ||
2b28d209 PP |
755 | /* Return a prefix for instruction address: |
756 | "=> " for current instruction, else " ". */ | |
757 | ||
758 | const char * | |
759 | pc_prefix (CORE_ADDR addr) | |
760 | { | |
761 | if (has_stack_frames ()) | |
762 | { | |
763 | struct frame_info *frame; | |
764 | CORE_ADDR pc; | |
765 | ||
766 | frame = get_selected_frame (NULL); | |
ce406537 | 767 | if (get_frame_pc_if_available (frame, &pc) && pc == addr) |
2b28d209 PP |
768 | return "=> "; |
769 | } | |
770 | return " "; | |
771 | } | |
772 | ||
c906108c SS |
773 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE |
774 | controls whether to print the symbolic name "raw" or demangled. | |
9cb709b6 | 775 | Return non-zero if anything was printed; zero otherwise. */ |
c906108c | 776 | |
9cb709b6 | 777 | int |
edf0c1b7 TT |
778 | print_address_demangle (const struct value_print_options *opts, |
779 | struct gdbarch *gdbarch, CORE_ADDR addr, | |
5af949e3 | 780 | struct ui_file *stream, int do_demangle) |
c906108c | 781 | { |
1d51a733 | 782 | if (opts->addressprint) |
c906108c | 783 | { |
5af949e3 | 784 | fputs_filtered (paddress (gdbarch, addr), stream); |
22e722e1 | 785 | print_address_symbolic (gdbarch, addr, stream, do_demangle, " "); |
c906108c SS |
786 | } |
787 | else | |
788 | { | |
9cb709b6 | 789 | return print_address_symbolic (gdbarch, addr, stream, do_demangle, ""); |
c906108c | 790 | } |
9cb709b6 | 791 | return 1; |
c906108c SS |
792 | } |
793 | \f | |
794 | ||
c906108c SS |
795 | /* Examine data at address ADDR in format FMT. |
796 | Fetch it from memory and print on gdb_stdout. */ | |
797 | ||
798 | static void | |
5d3729b5 | 799 | do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr) |
c906108c | 800 | { |
52f0bd74 AC |
801 | char format = 0; |
802 | char size; | |
803 | int count = 1; | |
c906108c | 804 | struct type *val_type = NULL; |
52f0bd74 AC |
805 | int i; |
806 | int maxelts; | |
79a45b7d | 807 | struct value_print_options opts; |
c906108c SS |
808 | |
809 | format = fmt.format; | |
810 | size = fmt.size; | |
811 | count = fmt.count; | |
5d3729b5 | 812 | next_gdbarch = gdbarch; |
c906108c | 813 | next_address = addr; |
c906108c | 814 | |
9a22f0d0 PM |
815 | /* Instruction format implies fetch single bytes |
816 | regardless of the specified size. | |
817 | The case of strings is handled in decode_format, only explicit | |
818 | size operator are not changed to 'b'. */ | |
819 | if (format == 'i') | |
c906108c SS |
820 | size = 'b'; |
821 | ||
5d3729b5 UW |
822 | if (size == 'a') |
823 | { | |
824 | /* Pick the appropriate size for an address. */ | |
825 | if (gdbarch_ptr_bit (next_gdbarch) == 64) | |
826 | size = 'g'; | |
827 | else if (gdbarch_ptr_bit (next_gdbarch) == 32) | |
828 | size = 'w'; | |
829 | else if (gdbarch_ptr_bit (next_gdbarch) == 16) | |
830 | size = 'h'; | |
831 | else | |
832 | /* Bad value for gdbarch_ptr_bit. */ | |
833 | internal_error (__FILE__, __LINE__, | |
834 | _("failed internal consistency check")); | |
835 | } | |
836 | ||
837 | if (size == 'b') | |
df4df182 | 838 | val_type = builtin_type (next_gdbarch)->builtin_int8; |
c906108c | 839 | else if (size == 'h') |
df4df182 | 840 | val_type = builtin_type (next_gdbarch)->builtin_int16; |
c906108c | 841 | else if (size == 'w') |
df4df182 | 842 | val_type = builtin_type (next_gdbarch)->builtin_int32; |
c906108c | 843 | else if (size == 'g') |
df4df182 | 844 | val_type = builtin_type (next_gdbarch)->builtin_int64; |
c906108c | 845 | |
9a22f0d0 PM |
846 | if (format == 's') |
847 | { | |
848 | struct type *char_type = NULL; | |
ad3bbd48 | 849 | |
9a22f0d0 PM |
850 | /* Search for "char16_t" or "char32_t" types or fall back to 8-bit char |
851 | if type is not found. */ | |
852 | if (size == 'h') | |
853 | char_type = builtin_type (next_gdbarch)->builtin_char16; | |
854 | else if (size == 'w') | |
855 | char_type = builtin_type (next_gdbarch)->builtin_char32; | |
856 | if (char_type) | |
857 | val_type = char_type; | |
858 | else | |
859 | { | |
860 | if (size != '\0' && size != 'b') | |
0df8b418 MS |
861 | warning (_("Unable to display strings with " |
862 | "size '%c', using 'b' instead."), size); | |
9a22f0d0 PM |
863 | size = 'b'; |
864 | val_type = builtin_type (next_gdbarch)->builtin_int8; | |
865 | } | |
866 | } | |
867 | ||
c906108c SS |
868 | maxelts = 8; |
869 | if (size == 'w') | |
870 | maxelts = 4; | |
871 | if (size == 'g') | |
872 | maxelts = 2; | |
873 | if (format == 's' || format == 'i') | |
874 | maxelts = 1; | |
875 | ||
79a45b7d TT |
876 | get_formatted_print_options (&opts, format); |
877 | ||
c906108c SS |
878 | /* Print as many objects as specified in COUNT, at most maxelts per line, |
879 | with the address of the next one at the start of each line. */ | |
880 | ||
881 | while (count > 0) | |
882 | { | |
883 | QUIT; | |
2b28d209 PP |
884 | if (format == 'i') |
885 | fputs_filtered (pc_prefix (next_address), gdb_stdout); | |
5af949e3 | 886 | print_address (next_gdbarch, next_address, gdb_stdout); |
c906108c SS |
887 | printf_filtered (":"); |
888 | for (i = maxelts; | |
889 | i > 0 && count > 0; | |
890 | i--, count--) | |
891 | { | |
892 | printf_filtered ("\t"); | |
893 | /* Note that print_formatted sets next_address for the next | |
894 | object. */ | |
895 | last_examine_address = next_address; | |
896 | ||
897 | if (last_examine_value) | |
898 | value_free (last_examine_value); | |
899 | ||
900 | /* The value to be displayed is not fetched greedily. | |
5d51a2db MR |
901 | Instead, to avoid the possibility of a fetched value not |
902 | being used, its retrieval is delayed until the print code | |
c5aa993b JM |
903 | uses it. When examining an instruction stream, the |
904 | disassembler will perform its own memory fetch using just | |
905 | the address stored in LAST_EXAMINE_VALUE. FIXME: Should | |
906 | the disassembler be modified so that LAST_EXAMINE_VALUE | |
907 | is left with the byte sequence from the last complete | |
0df8b418 | 908 | instruction fetched from memory? */ |
00a4c844 | 909 | last_examine_value = value_at_lazy (val_type, next_address); |
c906108c SS |
910 | |
911 | if (last_examine_value) | |
912 | release_value (last_examine_value); | |
913 | ||
79a45b7d | 914 | print_formatted (last_examine_value, size, &opts, gdb_stdout); |
a4642986 MR |
915 | |
916 | /* Display any branch delay slots following the final insn. */ | |
917 | if (format == 'i' && count == 1) | |
918 | count += branch_delay_insns; | |
c906108c SS |
919 | } |
920 | printf_filtered ("\n"); | |
921 | gdb_flush (gdb_stdout); | |
922 | } | |
923 | } | |
924 | \f | |
925 | static void | |
fba45db2 | 926 | validate_format (struct format_data fmt, char *cmdname) |
c906108c SS |
927 | { |
928 | if (fmt.size != 0) | |
8a3fe4f8 | 929 | error (_("Size letters are meaningless in \"%s\" command."), cmdname); |
c906108c | 930 | if (fmt.count != 1) |
8a3fe4f8 | 931 | error (_("Item count other than 1 is meaningless in \"%s\" command."), |
c906108c | 932 | cmdname); |
ea37ba09 | 933 | if (fmt.format == 'i') |
8a3fe4f8 | 934 | error (_("Format letter \"%c\" is meaningless in \"%s\" command."), |
c906108c SS |
935 | fmt.format, cmdname); |
936 | } | |
937 | ||
675dcf4f | 938 | /* Evaluate string EXP as an expression in the current language and |
c5aa993b | 939 | print the resulting value. EXP may contain a format specifier as the |
675dcf4f | 940 | first argument ("/x myvar" for example, to print myvar in hex). */ |
c906108c SS |
941 | |
942 | static void | |
fba45db2 | 943 | print_command_1 (char *exp, int inspect, int voidprint) |
c906108c SS |
944 | { |
945 | struct expression *expr; | |
52f0bd74 AC |
946 | struct cleanup *old_chain = 0; |
947 | char format = 0; | |
3d6d86c6 | 948 | struct value *val; |
c906108c SS |
949 | struct format_data fmt; |
950 | int cleanup = 0; | |
951 | ||
c906108c SS |
952 | if (exp && *exp == '/') |
953 | { | |
954 | exp++; | |
955 | fmt = decode_format (&exp, last_format, 0); | |
956 | validate_format (fmt, "print"); | |
957 | last_format = format = fmt.format; | |
958 | } | |
959 | else | |
960 | { | |
961 | fmt.count = 1; | |
962 | fmt.format = 0; | |
963 | fmt.size = 0; | |
a6bac58e | 964 | fmt.raw = 0; |
c906108c SS |
965 | } |
966 | ||
967 | if (exp && *exp) | |
968 | { | |
c906108c | 969 | expr = parse_expression (exp); |
c13c43fd | 970 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
971 | cleanup = 1; |
972 | val = evaluate_expression (expr); | |
c906108c SS |
973 | } |
974 | else | |
975 | val = access_value_history (0); | |
976 | ||
df407dfe AC |
977 | if (voidprint || (val && value_type (val) && |
978 | TYPE_CODE (value_type (val)) != TYPE_CODE_VOID)) | |
c906108c | 979 | { |
79a45b7d | 980 | struct value_print_options opts; |
c906108c SS |
981 | int histindex = record_latest_value (val); |
982 | ||
983 | if (histindex >= 0) | |
df407dfe | 984 | annotate_value_history_begin (histindex, value_type (val)); |
c906108c | 985 | else |
df407dfe | 986 | annotate_value_begin (value_type (val)); |
c906108c SS |
987 | |
988 | if (inspect) | |
675dcf4f MK |
989 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", |
990 | exp, histindex); | |
c5aa993b JM |
991 | else if (histindex >= 0) |
992 | printf_filtered ("$%d = ", histindex); | |
c906108c SS |
993 | |
994 | if (histindex >= 0) | |
995 | annotate_value_history_value (); | |
996 | ||
79a45b7d TT |
997 | get_formatted_print_options (&opts, format); |
998 | opts.inspect_it = inspect; | |
a6bac58e | 999 | opts.raw = fmt.raw; |
79a45b7d TT |
1000 | |
1001 | print_formatted (val, fmt.size, &opts, gdb_stdout); | |
c906108c SS |
1002 | printf_filtered ("\n"); |
1003 | ||
1004 | if (histindex >= 0) | |
1005 | annotate_value_history_end (); | |
1006 | else | |
1007 | annotate_value_end (); | |
1008 | ||
1009 | if (inspect) | |
c5aa993b | 1010 | printf_unfiltered ("\") )\030"); |
c906108c SS |
1011 | } |
1012 | ||
1013 | if (cleanup) | |
1014 | do_cleanups (old_chain); | |
c906108c SS |
1015 | } |
1016 | ||
c906108c | 1017 | static void |
fba45db2 | 1018 | print_command (char *exp, int from_tty) |
c906108c SS |
1019 | { |
1020 | print_command_1 (exp, 0, 1); | |
1021 | } | |
1022 | ||
675dcf4f | 1023 | /* Same as print, except in epoch, it gets its own window. */ |
c906108c | 1024 | static void |
fba45db2 | 1025 | inspect_command (char *exp, int from_tty) |
c906108c SS |
1026 | { |
1027 | extern int epoch_interface; | |
1028 | ||
1029 | print_command_1 (exp, epoch_interface, 1); | |
1030 | } | |
1031 | ||
675dcf4f | 1032 | /* Same as print, except it doesn't print void results. */ |
c906108c | 1033 | static void |
fba45db2 | 1034 | call_command (char *exp, int from_tty) |
c906108c SS |
1035 | { |
1036 | print_command_1 (exp, 0, 0); | |
1037 | } | |
1038 | ||
c906108c | 1039 | void |
fba45db2 | 1040 | output_command (char *exp, int from_tty) |
c906108c SS |
1041 | { |
1042 | struct expression *expr; | |
52f0bd74 AC |
1043 | struct cleanup *old_chain; |
1044 | char format = 0; | |
3d6d86c6 | 1045 | struct value *val; |
c906108c | 1046 | struct format_data fmt; |
79a45b7d | 1047 | struct value_print_options opts; |
c906108c | 1048 | |
777ea8f1 | 1049 | fmt.size = 0; |
a6bac58e | 1050 | fmt.raw = 0; |
777ea8f1 | 1051 | |
c906108c SS |
1052 | if (exp && *exp == '/') |
1053 | { | |
1054 | exp++; | |
1055 | fmt = decode_format (&exp, 0, 0); | |
1056 | validate_format (fmt, "output"); | |
1057 | format = fmt.format; | |
1058 | } | |
1059 | ||
1060 | expr = parse_expression (exp); | |
c13c43fd | 1061 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c SS |
1062 | |
1063 | val = evaluate_expression (expr); | |
1064 | ||
df407dfe | 1065 | annotate_value_begin (value_type (val)); |
c906108c | 1066 | |
79a45b7d | 1067 | get_formatted_print_options (&opts, format); |
a6bac58e | 1068 | opts.raw = fmt.raw; |
79a45b7d | 1069 | print_formatted (val, fmt.size, &opts, gdb_stdout); |
c906108c SS |
1070 | |
1071 | annotate_value_end (); | |
1072 | ||
2acceee2 JM |
1073 | wrap_here (""); |
1074 | gdb_flush (gdb_stdout); | |
1075 | ||
c906108c SS |
1076 | do_cleanups (old_chain); |
1077 | } | |
1078 | ||
c906108c | 1079 | static void |
fba45db2 | 1080 | set_command (char *exp, int from_tty) |
c906108c SS |
1081 | { |
1082 | struct expression *expr = parse_expression (exp); | |
52f0bd74 | 1083 | struct cleanup *old_chain = |
c13c43fd | 1084 | make_cleanup (free_current_contents, &expr); |
ad3bbd48 | 1085 | |
0ece64fd TG |
1086 | if (expr->nelts >= 1) |
1087 | switch (expr->elts[0].opcode) | |
1088 | { | |
1089 | case UNOP_PREINCREMENT: | |
1090 | case UNOP_POSTINCREMENT: | |
1091 | case UNOP_PREDECREMENT: | |
1092 | case UNOP_POSTDECREMENT: | |
1093 | case BINOP_ASSIGN: | |
1094 | case BINOP_ASSIGN_MODIFY: | |
1095 | case BINOP_COMMA: | |
1096 | break; | |
1097 | default: | |
1098 | warning | |
1099 | (_("Expression is not an assignment (and might have no effect)")); | |
1100 | } | |
52b3699b | 1101 | |
c906108c SS |
1102 | evaluate_expression (expr); |
1103 | do_cleanups (old_chain); | |
1104 | } | |
1105 | ||
c906108c | 1106 | static void |
fba45db2 | 1107 | sym_info (char *arg, int from_tty) |
c906108c SS |
1108 | { |
1109 | struct minimal_symbol *msymbol; | |
c5aa993b JM |
1110 | struct objfile *objfile; |
1111 | struct obj_section *osect; | |
c5aa993b JM |
1112 | CORE_ADDR addr, sect_addr; |
1113 | int matches = 0; | |
1114 | unsigned int offset; | |
c906108c SS |
1115 | |
1116 | if (!arg) | |
e2e0b3e5 | 1117 | error_no_arg (_("address")); |
c906108c SS |
1118 | |
1119 | addr = parse_and_eval_address (arg); | |
1120 | ALL_OBJSECTIONS (objfile, osect) | |
c5aa993b | 1121 | { |
94277a38 DJ |
1122 | /* Only process each object file once, even if there's a separate |
1123 | debug file. */ | |
1124 | if (objfile->separate_debug_objfile_backlink) | |
1125 | continue; | |
1126 | ||
714835d5 | 1127 | sect_addr = overlay_mapped_address (addr, osect); |
c906108c | 1128 | |
f1f6aadf PA |
1129 | if (obj_section_addr (osect) <= sect_addr |
1130 | && sect_addr < obj_section_endaddr (osect) | |
714835d5 | 1131 | && (msymbol = lookup_minimal_symbol_by_pc_section (sect_addr, osect))) |
c5aa993b | 1132 | { |
c14c28ba | 1133 | const char *obj_name, *mapped, *sec_name, *msym_name; |
e2fd701e DE |
1134 | char *loc_string; |
1135 | struct cleanup *old_chain; | |
c14c28ba | 1136 | |
c5aa993b JM |
1137 | matches = 1; |
1138 | offset = sect_addr - SYMBOL_VALUE_ADDRESS (msymbol); | |
c14c28ba PP |
1139 | mapped = section_is_mapped (osect) ? _("mapped") : _("unmapped"); |
1140 | sec_name = osect->the_bfd_section->name; | |
1141 | msym_name = SYMBOL_PRINT_NAME (msymbol); | |
1142 | ||
e2fd701e DE |
1143 | /* Don't print the offset if it is zero. |
1144 | We assume there's no need to handle i18n of "sym + offset". */ | |
1145 | if (offset) | |
549ba0f8 | 1146 | loc_string = xstrprintf ("%s + %u", msym_name, offset); |
e2fd701e | 1147 | else |
549ba0f8 | 1148 | loc_string = xstrprintf ("%s", msym_name); |
e2fd701e DE |
1149 | |
1150 | /* Use a cleanup to free loc_string in case the user quits | |
1151 | a pagination request inside printf_filtered. */ | |
1152 | old_chain = make_cleanup (xfree, loc_string); | |
1153 | ||
c14c28ba PP |
1154 | gdb_assert (osect->objfile && osect->objfile->name); |
1155 | obj_name = osect->objfile->name; | |
1156 | ||
1157 | if (MULTI_OBJFILE_P ()) | |
1158 | if (pc_in_unmapped_range (addr, osect)) | |
1159 | if (section_is_overlay (osect)) | |
e2fd701e | 1160 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1161 | "%s overlay section %s of %s\n"), |
e2fd701e | 1162 | loc_string, mapped, sec_name, obj_name); |
c14c28ba | 1163 | else |
e2fd701e | 1164 | printf_filtered (_("%s in load address range of " |
c14c28ba | 1165 | "section %s of %s\n"), |
e2fd701e | 1166 | loc_string, sec_name, obj_name); |
c14c28ba PP |
1167 | else |
1168 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1169 | printf_filtered (_("%s in %s overlay section %s of %s\n"), |
1170 | loc_string, mapped, sec_name, obj_name); | |
c14c28ba | 1171 | else |
e2fd701e DE |
1172 | printf_filtered (_("%s in section %s of %s\n"), |
1173 | loc_string, sec_name, obj_name); | |
c5aa993b | 1174 | else |
c14c28ba PP |
1175 | if (pc_in_unmapped_range (addr, osect)) |
1176 | if (section_is_overlay (osect)) | |
e2fd701e | 1177 | printf_filtered (_("%s in load address range of %s overlay " |
c14c28ba | 1178 | "section %s\n"), |
e2fd701e | 1179 | loc_string, mapped, sec_name); |
c14c28ba | 1180 | else |
e2fd701e DE |
1181 | printf_filtered (_("%s in load address range of section %s\n"), |
1182 | loc_string, sec_name); | |
c14c28ba PP |
1183 | else |
1184 | if (section_is_overlay (osect)) | |
e2fd701e DE |
1185 | printf_filtered (_("%s in %s overlay section %s\n"), |
1186 | loc_string, mapped, sec_name); | |
c14c28ba | 1187 | else |
e2fd701e DE |
1188 | printf_filtered (_("%s in section %s\n"), |
1189 | loc_string, sec_name); | |
1190 | ||
1191 | do_cleanups (old_chain); | |
c5aa993b JM |
1192 | } |
1193 | } | |
c906108c | 1194 | if (matches == 0) |
a3f17187 | 1195 | printf_filtered (_("No symbol matches %s.\n"), arg); |
c906108c SS |
1196 | } |
1197 | ||
c906108c | 1198 | static void |
fba45db2 | 1199 | address_info (char *exp, int from_tty) |
c906108c | 1200 | { |
768a979c UW |
1201 | struct gdbarch *gdbarch; |
1202 | int regno; | |
52f0bd74 AC |
1203 | struct symbol *sym; |
1204 | struct minimal_symbol *msymbol; | |
1205 | long val; | |
714835d5 | 1206 | struct obj_section *section; |
08922a10 | 1207 | CORE_ADDR load_addr, context_pc = 0; |
c906108c | 1208 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero |
0df8b418 | 1209 | if exp is a field of `this'. */ |
c906108c SS |
1210 | |
1211 | if (exp == 0) | |
8a3fe4f8 | 1212 | error (_("Argument required.")); |
c906108c | 1213 | |
08922a10 | 1214 | sym = lookup_symbol (exp, get_selected_block (&context_pc), VAR_DOMAIN, |
2570f2b7 | 1215 | &is_a_field_of_this); |
c906108c SS |
1216 | if (sym == NULL) |
1217 | { | |
1218 | if (is_a_field_of_this) | |
1219 | { | |
1220 | printf_filtered ("Symbol \""); | |
1221 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1222 | current_language->la_language, DMGL_ANSI); | |
e2b23ee9 AF |
1223 | printf_filtered ("\" is a field of the local class variable "); |
1224 | if (current_language->la_language == language_objc) | |
2625d86c | 1225 | printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */ |
e2b23ee9 | 1226 | else |
2625d86c | 1227 | printf_filtered ("`this'\n"); |
c906108c SS |
1228 | return; |
1229 | } | |
1230 | ||
1231 | msymbol = lookup_minimal_symbol (exp, NULL, NULL); | |
1232 | ||
1233 | if (msymbol != NULL) | |
1234 | { | |
5af949e3 | 1235 | gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
c906108c SS |
1236 | load_addr = SYMBOL_VALUE_ADDRESS (msymbol); |
1237 | ||
1238 | printf_filtered ("Symbol \""); | |
1239 | fprintf_symbol_filtered (gdb_stdout, exp, | |
1240 | current_language->la_language, DMGL_ANSI); | |
1241 | printf_filtered ("\" is at "); | |
5af949e3 | 1242 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c | 1243 | printf_filtered (" in a file compiled without debugging"); |
714835d5 | 1244 | section = SYMBOL_OBJ_SECTION (msymbol); |
c906108c SS |
1245 | if (section_is_overlay (section)) |
1246 | { | |
1247 | load_addr = overlay_unmapped_address (load_addr, section); | |
1248 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1249 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1250 | printf_filtered (" in overlay section %s", |
1251 | section->the_bfd_section->name); | |
c906108c SS |
1252 | } |
1253 | printf_filtered (".\n"); | |
1254 | } | |
1255 | else | |
8a3fe4f8 | 1256 | error (_("No symbol \"%s\" in current context."), exp); |
c906108c SS |
1257 | return; |
1258 | } | |
1259 | ||
1260 | printf_filtered ("Symbol \""); | |
3567439c | 1261 | fprintf_symbol_filtered (gdb_stdout, SYMBOL_PRINT_NAME (sym), |
c906108c SS |
1262 | current_language->la_language, DMGL_ANSI); |
1263 | printf_filtered ("\" is "); | |
c5aa993b | 1264 | val = SYMBOL_VALUE (sym); |
714835d5 | 1265 | section = SYMBOL_OBJ_SECTION (sym); |
768a979c | 1266 | gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile); |
c906108c SS |
1267 | |
1268 | switch (SYMBOL_CLASS (sym)) | |
1269 | { | |
1270 | case LOC_CONST: | |
1271 | case LOC_CONST_BYTES: | |
1272 | printf_filtered ("constant"); | |
1273 | break; | |
1274 | ||
1275 | case LOC_LABEL: | |
1276 | printf_filtered ("a label at address "); | |
5af949e3 UW |
1277 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1278 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1279 | if (section_is_overlay (section)) |
1280 | { | |
1281 | load_addr = overlay_unmapped_address (load_addr, section); | |
1282 | printf_filtered (",\n -- loaded at "); | |
5af949e3 | 1283 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1284 | printf_filtered (" in overlay section %s", |
1285 | section->the_bfd_section->name); | |
c906108c SS |
1286 | } |
1287 | break; | |
1288 | ||
4c2df51b | 1289 | case LOC_COMPUTED: |
a67af2b9 | 1290 | /* FIXME: cagney/2004-01-26: It should be possible to |
768a979c | 1291 | unconditionally call the SYMBOL_COMPUTED_OPS method when available. |
d3efc286 | 1292 | Unfortunately DWARF 2 stores the frame-base (instead of the |
a67af2b9 AC |
1293 | function) location in a function's symbol. Oops! For the |
1294 | moment enable this when/where applicable. */ | |
3e43a32a MS |
1295 | SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, context_pc, |
1296 | gdb_stdout); | |
4c2df51b DJ |
1297 | break; |
1298 | ||
c906108c | 1299 | case LOC_REGISTER: |
768a979c UW |
1300 | /* GDBARCH is the architecture associated with the objfile the symbol |
1301 | is defined in; the target architecture may be different, and may | |
1302 | provide additional registers. However, we do not know the target | |
1303 | architecture at this point. We assume the objfile architecture | |
1304 | will contain all the standard registers that occur in debug info | |
1305 | in that objfile. */ | |
1306 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
1307 | ||
2a2d4dc3 AS |
1308 | if (SYMBOL_IS_ARGUMENT (sym)) |
1309 | printf_filtered (_("an argument in register %s"), | |
768a979c | 1310 | gdbarch_register_name (gdbarch, regno)); |
2a2d4dc3 AS |
1311 | else |
1312 | printf_filtered (_("a variable in register %s"), | |
768a979c | 1313 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1314 | break; |
1315 | ||
1316 | case LOC_STATIC: | |
a3f17187 | 1317 | printf_filtered (_("static storage at address ")); |
5af949e3 UW |
1318 | load_addr = SYMBOL_VALUE_ADDRESS (sym); |
1319 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); | |
c906108c SS |
1320 | if (section_is_overlay (section)) |
1321 | { | |
1322 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1323 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1324 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1325 | printf_filtered (_(" in overlay section %s"), |
1326 | section->the_bfd_section->name); | |
c906108c SS |
1327 | } |
1328 | break; | |
1329 | ||
c906108c | 1330 | case LOC_REGPARM_ADDR: |
768a979c UW |
1331 | /* Note comment at LOC_REGISTER. */ |
1332 | regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch); | |
675dcf4f | 1333 | printf_filtered (_("address of an argument in register %s"), |
768a979c | 1334 | gdbarch_register_name (gdbarch, regno)); |
c906108c SS |
1335 | break; |
1336 | ||
1337 | case LOC_ARG: | |
a3f17187 | 1338 | printf_filtered (_("an argument at offset %ld"), val); |
c906108c SS |
1339 | break; |
1340 | ||
c906108c | 1341 | case LOC_LOCAL: |
a3f17187 | 1342 | printf_filtered (_("a local variable at frame offset %ld"), val); |
c906108c SS |
1343 | break; |
1344 | ||
1345 | case LOC_REF_ARG: | |
a3f17187 | 1346 | printf_filtered (_("a reference argument at offset %ld"), val); |
c906108c SS |
1347 | break; |
1348 | ||
c906108c | 1349 | case LOC_TYPEDEF: |
a3f17187 | 1350 | printf_filtered (_("a typedef")); |
c906108c SS |
1351 | break; |
1352 | ||
1353 | case LOC_BLOCK: | |
a3f17187 | 1354 | printf_filtered (_("a function at address ")); |
675dcf4f | 1355 | load_addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
5af949e3 | 1356 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
c906108c SS |
1357 | if (section_is_overlay (section)) |
1358 | { | |
1359 | load_addr = overlay_unmapped_address (load_addr, section); | |
a3f17187 | 1360 | printf_filtered (_(",\n -- loaded at ")); |
5af949e3 | 1361 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
714835d5 UW |
1362 | printf_filtered (_(" in overlay section %s"), |
1363 | section->the_bfd_section->name); | |
c906108c SS |
1364 | } |
1365 | break; | |
1366 | ||
1367 | case LOC_UNRESOLVED: | |
1368 | { | |
1369 | struct minimal_symbol *msym; | |
1370 | ||
3567439c | 1371 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), NULL, NULL); |
c906108c SS |
1372 | if (msym == NULL) |
1373 | printf_filtered ("unresolved"); | |
1374 | else | |
1375 | { | |
714835d5 | 1376 | section = SYMBOL_OBJ_SECTION (msym); |
675dcf4f | 1377 | load_addr = SYMBOL_VALUE_ADDRESS (msym); |
e0740f77 JK |
1378 | |
1379 | if (section | |
1380 | && (section->the_bfd_section->flags & SEC_THREAD_LOCAL) != 0) | |
1381 | printf_filtered (_("a thread-local variable at offset %s " | |
1382 | "in the thread-local storage for `%s'"), | |
5af949e3 UW |
1383 | paddress (gdbarch, load_addr), |
1384 | section->objfile->name); | |
e0740f77 | 1385 | else |
c906108c | 1386 | { |
e0740f77 | 1387 | printf_filtered (_("static storage at address ")); |
5af949e3 | 1388 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1389 | if (section_is_overlay (section)) |
1390 | { | |
1391 | load_addr = overlay_unmapped_address (load_addr, section); | |
1392 | printf_filtered (_(",\n -- loaded at ")); | |
5af949e3 | 1393 | fputs_filtered (paddress (gdbarch, load_addr), gdb_stdout); |
e0740f77 JK |
1394 | printf_filtered (_(" in overlay section %s"), |
1395 | section->the_bfd_section->name); | |
1396 | } | |
c906108c SS |
1397 | } |
1398 | } | |
1399 | } | |
1400 | break; | |
1401 | ||
c906108c | 1402 | case LOC_OPTIMIZED_OUT: |
a3f17187 | 1403 | printf_filtered (_("optimized out")); |
c906108c | 1404 | break; |
c5aa993b | 1405 | |
c906108c | 1406 | default: |
a3f17187 | 1407 | printf_filtered (_("of unknown (botched) type")); |
c906108c SS |
1408 | break; |
1409 | } | |
1410 | printf_filtered (".\n"); | |
1411 | } | |
1412 | \f | |
675dcf4f MK |
1413 | |
1414 | static void | |
fba45db2 | 1415 | x_command (char *exp, int from_tty) |
c906108c SS |
1416 | { |
1417 | struct expression *expr; | |
1418 | struct format_data fmt; | |
1419 | struct cleanup *old_chain; | |
1420 | struct value *val; | |
1421 | ||
a6bac58e | 1422 | fmt.format = last_format ? last_format : 'x'; |
c906108c SS |
1423 | fmt.size = last_size; |
1424 | fmt.count = 1; | |
a6bac58e | 1425 | fmt.raw = 0; |
c906108c SS |
1426 | |
1427 | if (exp && *exp == '/') | |
1428 | { | |
1429 | exp++; | |
1430 | fmt = decode_format (&exp, last_format, last_size); | |
1431 | } | |
1432 | ||
1433 | /* If we have an expression, evaluate it and use it as the address. */ | |
1434 | ||
1435 | if (exp != 0 && *exp != 0) | |
1436 | { | |
1437 | expr = parse_expression (exp); | |
675dcf4f MK |
1438 | /* Cause expression not to be there any more if this command is |
1439 | repeated with Newline. But don't clobber a user-defined | |
1440 | command's definition. */ | |
c906108c SS |
1441 | if (from_tty) |
1442 | *exp = 0; | |
c13c43fd | 1443 | old_chain = make_cleanup (free_current_contents, &expr); |
c906108c | 1444 | val = evaluate_expression (expr); |
df407dfe | 1445 | if (TYPE_CODE (value_type (val)) == TYPE_CODE_REF) |
e1c34c5d | 1446 | val = coerce_ref (val); |
c906108c | 1447 | /* In rvalue contexts, such as this, functions are coerced into |
c5aa993b | 1448 | pointers to functions. This makes "x/i main" work. */ |
c0d8fd9a | 1449 | if (/* last_format == 'i' && */ |
df407dfe | 1450 | TYPE_CODE (value_type (val)) == TYPE_CODE_FUNC |
c5aa993b | 1451 | && VALUE_LVAL (val) == lval_memory) |
42ae5230 | 1452 | next_address = value_address (val); |
c906108c | 1453 | else |
1aa20aa8 | 1454 | next_address = value_as_address (val); |
5d3729b5 UW |
1455 | |
1456 | next_gdbarch = expr->gdbarch; | |
c906108c SS |
1457 | do_cleanups (old_chain); |
1458 | } | |
1459 | ||
5d3729b5 UW |
1460 | if (!next_gdbarch) |
1461 | error_no_arg (_("starting display address")); | |
1462 | ||
1463 | do_examine (fmt, next_gdbarch, next_address); | |
c906108c | 1464 | |
675dcf4f | 1465 | /* If the examine succeeds, we remember its size and format for next |
9a22f0d0 PM |
1466 | time. Set last_size to 'b' for strings. */ |
1467 | if (fmt.format == 's') | |
1468 | last_size = 'b'; | |
1469 | else | |
1470 | last_size = fmt.size; | |
c906108c SS |
1471 | last_format = fmt.format; |
1472 | ||
0df8b418 | 1473 | /* Set a couple of internal variables if appropriate. */ |
c906108c SS |
1474 | if (last_examine_value) |
1475 | { | |
1476 | /* Make last address examined available to the user as $_. Use | |
c5aa993b | 1477 | the correct pointer type. */ |
4478b372 | 1478 | struct type *pointer_type |
df407dfe | 1479 | = lookup_pointer_type (value_type (last_examine_value)); |
c906108c | 1480 | set_internalvar (lookup_internalvar ("_"), |
4478b372 JB |
1481 | value_from_pointer (pointer_type, |
1482 | last_examine_address)); | |
c5aa993b | 1483 | |
675dcf4f MK |
1484 | /* Make contents of last address examined available to the user |
1485 | as $__. If the last value has not been fetched from memory | |
1486 | then don't fetch it now; instead mark it by voiding the $__ | |
1487 | variable. */ | |
d69fe07e | 1488 | if (value_lazy (last_examine_value)) |
4fa62494 | 1489 | clear_internalvar (lookup_internalvar ("__")); |
c906108c SS |
1490 | else |
1491 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1492 | } | |
1493 | } | |
c906108c | 1494 | \f |
c5aa993b | 1495 | |
c906108c SS |
1496 | /* Add an expression to the auto-display chain. |
1497 | Specify the expression. */ | |
1498 | ||
1499 | static void | |
fba45db2 | 1500 | display_command (char *exp, int from_tty) |
c906108c SS |
1501 | { |
1502 | struct format_data fmt; | |
52f0bd74 AC |
1503 | struct expression *expr; |
1504 | struct display *new; | |
c906108c SS |
1505 | int display_it = 1; |
1506 | ||
1507 | #if defined(TUI) | |
021e7609 AC |
1508 | /* NOTE: cagney/2003-02-13 The `tui_active' was previously |
1509 | `tui_version'. */ | |
fd33e6cb | 1510 | if (tui_active && exp != NULL && *exp == '$') |
080ce8c0 | 1511 | display_it = (tui_set_layout_for_display_command (exp) == TUI_FAILURE); |
c906108c SS |
1512 | #endif |
1513 | ||
1514 | if (display_it) | |
1515 | { | |
1516 | if (exp == 0) | |
1517 | { | |
1518 | do_displays (); | |
1519 | return; | |
1520 | } | |
1521 | ||
1522 | if (*exp == '/') | |
1523 | { | |
1524 | exp++; | |
1525 | fmt = decode_format (&exp, 0, 0); | |
1526 | if (fmt.size && fmt.format == 0) | |
1527 | fmt.format = 'x'; | |
1528 | if (fmt.format == 'i' || fmt.format == 's') | |
1529 | fmt.size = 'b'; | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | fmt.format = 0; | |
1534 | fmt.size = 0; | |
1535 | fmt.count = 0; | |
a6bac58e | 1536 | fmt.raw = 0; |
c906108c SS |
1537 | } |
1538 | ||
a3247a22 | 1539 | innermost_block = NULL; |
c906108c SS |
1540 | expr = parse_expression (exp); |
1541 | ||
1542 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1543 | ||
fa8a61dc | 1544 | new->exp_string = xstrdup (exp); |
c906108c SS |
1545 | new->exp = expr; |
1546 | new->block = innermost_block; | |
6c95b8df | 1547 | new->pspace = current_program_space; |
c906108c SS |
1548 | new->next = display_chain; |
1549 | new->number = ++display_number; | |
1550 | new->format = fmt; | |
b5de0fa7 | 1551 | new->enabled_p = 1; |
c906108c SS |
1552 | display_chain = new; |
1553 | ||
1554 | if (from_tty && target_has_execution) | |
1555 | do_one_display (new); | |
1556 | ||
1557 | dont_repeat (); | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | static void | |
fba45db2 | 1562 | free_display (struct display *d) |
c906108c | 1563 | { |
fa8a61dc | 1564 | xfree (d->exp_string); |
b8c9b27d KB |
1565 | xfree (d->exp); |
1566 | xfree (d); | |
c906108c SS |
1567 | } |
1568 | ||
675dcf4f MK |
1569 | /* Clear out the display_chain. Done when new symtabs are loaded, |
1570 | since this invalidates the types stored in many expressions. */ | |
c906108c SS |
1571 | |
1572 | void | |
fba45db2 | 1573 | clear_displays (void) |
c906108c | 1574 | { |
52f0bd74 | 1575 | struct display *d; |
c906108c SS |
1576 | |
1577 | while ((d = display_chain) != NULL) | |
1578 | { | |
c906108c | 1579 | display_chain = d->next; |
fa8a61dc | 1580 | free_display (d); |
c906108c SS |
1581 | } |
1582 | } | |
1583 | ||
3c3fe74c | 1584 | /* Delete the auto-display DISPLAY. */ |
c906108c SS |
1585 | |
1586 | static void | |
3c3fe74c | 1587 | delete_display (struct display *display) |
c906108c | 1588 | { |
3c3fe74c | 1589 | struct display *d; |
c906108c | 1590 | |
3c3fe74c | 1591 | gdb_assert (display != NULL); |
c906108c | 1592 | |
3c3fe74c PA |
1593 | if (display_chain == display) |
1594 | display_chain = display->next; | |
1595 | ||
1596 | ALL_DISPLAYS (d) | |
1597 | if (d->next == display) | |
c906108c | 1598 | { |
3c3fe74c PA |
1599 | d->next = display->next; |
1600 | break; | |
c906108c | 1601 | } |
3c3fe74c PA |
1602 | |
1603 | free_display (display); | |
c906108c SS |
1604 | } |
1605 | ||
c9174737 PA |
1606 | /* Call FUNCTION on each of the displays whose numbers are given in |
1607 | ARGS. DATA is passed unmodified to FUNCTION. */ | |
c906108c SS |
1608 | |
1609 | static void | |
c9174737 PA |
1610 | map_display_numbers (char *args, |
1611 | void (*function) (struct display *, | |
1612 | void *), | |
1613 | void *data) | |
c906108c | 1614 | { |
197f0a60 | 1615 | struct get_number_or_range_state state; |
c9174737 | 1616 | int num; |
c906108c | 1617 | |
c9174737 PA |
1618 | if (args == NULL) |
1619 | error_no_arg (_("one or more display numbers")); | |
c906108c | 1620 | |
197f0a60 | 1621 | init_number_or_range (&state, args); |
c9174737 | 1622 | |
197f0a60 | 1623 | while (!state.finished) |
c906108c | 1624 | { |
197f0a60 | 1625 | char *p = state.string; |
c906108c | 1626 | |
197f0a60 | 1627 | num = get_number_or_range (&state); |
3c3fe74c PA |
1628 | if (num == 0) |
1629 | warning (_("bad display number at or near '%s'"), p); | |
1630 | else | |
1631 | { | |
c9174737 | 1632 | struct display *d, *tmp; |
c906108c | 1633 | |
c9174737 | 1634 | ALL_DISPLAYS_SAFE (d, tmp) |
3c3fe74c PA |
1635 | if (d->number == num) |
1636 | break; | |
1637 | if (d == NULL) | |
1638 | printf_unfiltered (_("No display number %d.\n"), num); | |
1639 | else | |
c9174737 | 1640 | function (d, data); |
3c3fe74c | 1641 | } |
c906108c | 1642 | } |
c9174737 PA |
1643 | } |
1644 | ||
1645 | /* Callback for map_display_numbers, that deletes a display. */ | |
1646 | ||
1647 | static void | |
1648 | do_delete_display (struct display *d, void *data) | |
1649 | { | |
1650 | delete_display (d); | |
1651 | } | |
1652 | ||
1653 | /* "undisplay" command. */ | |
1654 | ||
1655 | static void | |
1656 | undisplay_command (char *args, int from_tty) | |
1657 | { | |
c9174737 PA |
1658 | if (args == NULL) |
1659 | { | |
1660 | if (query (_("Delete all auto-display expressions? "))) | |
1661 | clear_displays (); | |
1662 | dont_repeat (); | |
1663 | return; | |
1664 | } | |
1665 | ||
1666 | map_display_numbers (args, do_delete_display, NULL); | |
c906108c SS |
1667 | dont_repeat (); |
1668 | } | |
1669 | ||
1670 | /* Display a single auto-display. | |
1671 | Do nothing if the display cannot be printed in the current context, | |
0df8b418 | 1672 | or if the display is disabled. */ |
c906108c SS |
1673 | |
1674 | static void | |
fba45db2 | 1675 | do_one_display (struct display *d) |
c906108c | 1676 | { |
af6e93b2 | 1677 | struct cleanup *old_chain; |
c906108c SS |
1678 | int within_current_scope; |
1679 | ||
b5de0fa7 | 1680 | if (d->enabled_p == 0) |
c906108c SS |
1681 | return; |
1682 | ||
704e9165 UW |
1683 | /* The expression carries the architecture that was used at parse time. |
1684 | This is a problem if the expression depends on architecture features | |
1685 | (e.g. register numbers), and the current architecture is now different. | |
1686 | For example, a display statement like "display/i $pc" is expected to | |
1687 | display the PC register of the current architecture, not the arch at | |
1688 | the time the display command was given. Therefore, we re-parse the | |
1689 | expression if the current architecture has changed. */ | |
1690 | if (d->exp != NULL && d->exp->gdbarch != get_current_arch ()) | |
1691 | { | |
1692 | xfree (d->exp); | |
1693 | d->exp = NULL; | |
1694 | d->block = NULL; | |
1695 | } | |
1696 | ||
a3247a22 PP |
1697 | if (d->exp == NULL) |
1698 | { | |
1699 | volatile struct gdb_exception ex; | |
ad3bbd48 | 1700 | |
a3247a22 PP |
1701 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1702 | { | |
1703 | innermost_block = NULL; | |
1704 | d->exp = parse_expression (d->exp_string); | |
1705 | d->block = innermost_block; | |
1706 | } | |
1707 | if (ex.reason < 0) | |
1708 | { | |
1709 | /* Can't re-parse the expression. Disable this display item. */ | |
1710 | d->enabled_p = 0; | |
1711 | warning (_("Unable to display \"%s\": %s"), | |
1712 | d->exp_string, ex.message); | |
1713 | return; | |
1714 | } | |
1715 | } | |
1716 | ||
c906108c | 1717 | if (d->block) |
6c95b8df PA |
1718 | { |
1719 | if (d->pspace == current_program_space) | |
1720 | within_current_scope = contained_in (get_selected_block (0), d->block); | |
1721 | else | |
1722 | within_current_scope = 0; | |
1723 | } | |
c906108c SS |
1724 | else |
1725 | within_current_scope = 1; | |
1726 | if (!within_current_scope) | |
1727 | return; | |
1728 | ||
9d8fa392 | 1729 | old_chain = make_cleanup_restore_integer (¤t_display_number); |
c906108c SS |
1730 | current_display_number = d->number; |
1731 | ||
1732 | annotate_display_begin (); | |
1733 | printf_filtered ("%d", d->number); | |
1734 | annotate_display_number_end (); | |
1735 | printf_filtered (": "); | |
1736 | if (d->format.size) | |
1737 | { | |
9d8fa392 | 1738 | volatile struct gdb_exception ex; |
c906108c SS |
1739 | |
1740 | annotate_display_format (); | |
1741 | ||
1742 | printf_filtered ("x/"); | |
1743 | if (d->format.count != 1) | |
1744 | printf_filtered ("%d", d->format.count); | |
1745 | printf_filtered ("%c", d->format.format); | |
1746 | if (d->format.format != 'i' && d->format.format != 's') | |
1747 | printf_filtered ("%c", d->format.size); | |
1748 | printf_filtered (" "); | |
1749 | ||
1750 | annotate_display_expression (); | |
1751 | ||
fa8a61dc | 1752 | puts_filtered (d->exp_string); |
c906108c SS |
1753 | annotate_display_expression_end (); |
1754 | ||
6a2eb474 | 1755 | if (d->format.count != 1 || d->format.format == 'i') |
c906108c SS |
1756 | printf_filtered ("\n"); |
1757 | else | |
1758 | printf_filtered (" "); | |
c5aa993b | 1759 | |
c906108c SS |
1760 | annotate_display_value (); |
1761 | ||
9d8fa392 PA |
1762 | TRY_CATCH (ex, RETURN_MASK_ERROR) |
1763 | { | |
1764 | struct value *val; | |
1765 | CORE_ADDR addr; | |
1766 | ||
1767 | val = evaluate_expression (d->exp); | |
1768 | addr = value_as_address (val); | |
1769 | if (d->format.format == 'i') | |
1770 | addr = gdbarch_addr_bits_remove (d->exp->gdbarch, addr); | |
1771 | do_examine (d->format, d->exp->gdbarch, addr); | |
1772 | } | |
1773 | if (ex.reason < 0) | |
1774 | fprintf_filtered (gdb_stdout, _("<error: %s>\n"), ex.message); | |
c906108c SS |
1775 | } |
1776 | else | |
1777 | { | |
79a45b7d | 1778 | struct value_print_options opts; |
9d8fa392 | 1779 | volatile struct gdb_exception ex; |
79a45b7d | 1780 | |
c906108c SS |
1781 | annotate_display_format (); |
1782 | ||
1783 | if (d->format.format) | |
1784 | printf_filtered ("/%c ", d->format.format); | |
1785 | ||
1786 | annotate_display_expression (); | |
1787 | ||
fa8a61dc | 1788 | puts_filtered (d->exp_string); |
c906108c SS |
1789 | annotate_display_expression_end (); |
1790 | ||
1791 | printf_filtered (" = "); | |
1792 | ||
1793 | annotate_display_expression (); | |
1794 | ||
79a45b7d | 1795 | get_formatted_print_options (&opts, d->format.format); |
a6bac58e | 1796 | opts.raw = d->format.raw; |
9d8fa392 PA |
1797 | |
1798 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
1799 | { | |
1800 | struct value *val; | |
1801 | ||
1802 | val = evaluate_expression (d->exp); | |
1803 | print_formatted (val, d->format.size, &opts, gdb_stdout); | |
1804 | } | |
1805 | if (ex.reason < 0) | |
1806 | fprintf_filtered (gdb_stdout, _("<error: %s>"), ex.message); | |
c906108c SS |
1807 | printf_filtered ("\n"); |
1808 | } | |
1809 | ||
1810 | annotate_display_end (); | |
1811 | ||
1812 | gdb_flush (gdb_stdout); | |
9d8fa392 | 1813 | do_cleanups (old_chain); |
c906108c SS |
1814 | } |
1815 | ||
1816 | /* Display all of the values on the auto-display chain which can be | |
1817 | evaluated in the current scope. */ | |
1818 | ||
1819 | void | |
fba45db2 | 1820 | do_displays (void) |
c906108c | 1821 | { |
52f0bd74 | 1822 | struct display *d; |
c906108c SS |
1823 | |
1824 | for (d = display_chain; d; d = d->next) | |
1825 | do_one_display (d); | |
1826 | } | |
1827 | ||
1828 | /* Delete the auto-display which we were in the process of displaying. | |
1829 | This is done when there is an error or a signal. */ | |
1830 | ||
1831 | void | |
fba45db2 | 1832 | disable_display (int num) |
c906108c | 1833 | { |
52f0bd74 | 1834 | struct display *d; |
c906108c SS |
1835 | |
1836 | for (d = display_chain; d; d = d->next) | |
1837 | if (d->number == num) | |
1838 | { | |
b5de0fa7 | 1839 | d->enabled_p = 0; |
c906108c SS |
1840 | return; |
1841 | } | |
a3f17187 | 1842 | printf_unfiltered (_("No display number %d.\n"), num); |
c906108c | 1843 | } |
c5aa993b | 1844 | |
c906108c | 1845 | void |
fba45db2 | 1846 | disable_current_display (void) |
c906108c SS |
1847 | { |
1848 | if (current_display_number >= 0) | |
1849 | { | |
1850 | disable_display (current_display_number); | |
3e43a32a MS |
1851 | fprintf_unfiltered (gdb_stderr, |
1852 | _("Disabling display %d to " | |
1853 | "avoid infinite recursion.\n"), | |
c5aa993b | 1854 | current_display_number); |
c906108c SS |
1855 | } |
1856 | current_display_number = -1; | |
1857 | } | |
1858 | ||
1859 | static void | |
fba45db2 | 1860 | display_info (char *ignore, int from_tty) |
c906108c | 1861 | { |
52f0bd74 | 1862 | struct display *d; |
c906108c SS |
1863 | |
1864 | if (!display_chain) | |
a3f17187 | 1865 | printf_unfiltered (_("There are no auto-display expressions now.\n")); |
c906108c | 1866 | else |
a3f17187 AC |
1867 | printf_filtered (_("Auto-display expressions now in effect:\n\ |
1868 | Num Enb Expression\n")); | |
c906108c SS |
1869 | |
1870 | for (d = display_chain; d; d = d->next) | |
1871 | { | |
b5de0fa7 | 1872 | printf_filtered ("%d: %c ", d->number, "ny"[(int) d->enabled_p]); |
c906108c SS |
1873 | if (d->format.size) |
1874 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
c5aa993b | 1875 | d->format.format); |
c906108c SS |
1876 | else if (d->format.format) |
1877 | printf_filtered ("/%c ", d->format.format); | |
fa8a61dc | 1878 | puts_filtered (d->exp_string); |
ae767bfb | 1879 | if (d->block && !contained_in (get_selected_block (0), d->block)) |
a3f17187 | 1880 | printf_filtered (_(" (cannot be evaluated in the current context)")); |
c906108c SS |
1881 | printf_filtered ("\n"); |
1882 | gdb_flush (gdb_stdout); | |
1883 | } | |
1884 | } | |
1885 | ||
c9174737 PA |
1886 | /* Callback fo map_display_numbers, that enables or disables the |
1887 | passed in display D. */ | |
1888 | ||
c906108c | 1889 | static void |
c9174737 | 1890 | do_enable_disable_display (struct display *d, void *data) |
c906108c | 1891 | { |
c9174737 PA |
1892 | d->enabled_p = *(int *) data; |
1893 | } | |
c906108c | 1894 | |
c9174737 PA |
1895 | /* Implamentation of both the "disable display" and "enable display" |
1896 | commands. ENABLE decides what to do. */ | |
1897 | ||
1898 | static void | |
1899 | enable_disable_display_command (char *args, int from_tty, int enable) | |
1900 | { | |
1901 | if (args == NULL) | |
c906108c | 1902 | { |
c9174737 | 1903 | struct display *d; |
c5aa993b | 1904 | |
c9174737 PA |
1905 | ALL_DISPLAYS (d) |
1906 | d->enabled_p = enable; | |
1907 | return; | |
1908 | } | |
c5aa993b | 1909 | |
c9174737 | 1910 | map_display_numbers (args, do_enable_disable_display, &enable); |
c906108c SS |
1911 | } |
1912 | ||
c9174737 PA |
1913 | /* The "enable display" command. */ |
1914 | ||
c906108c | 1915 | static void |
c9174737 | 1916 | enable_display_command (char *args, int from_tty) |
c906108c | 1917 | { |
c9174737 PA |
1918 | enable_disable_display_command (args, from_tty, 1); |
1919 | } | |
c5aa993b | 1920 | |
c9174737 | 1921 | /* The "disable display" command. */ |
c906108c | 1922 | |
c9174737 PA |
1923 | static void |
1924 | disable_display_command (char *args, int from_tty) | |
1925 | { | |
1926 | enable_disable_display_command (args, from_tty, 0); | |
c906108c | 1927 | } |
a3247a22 | 1928 | |
a3247a22 PP |
1929 | /* display_chain items point to blocks and expressions. Some expressions in |
1930 | turn may point to symbols. | |
1931 | Both symbols and blocks are obstack_alloc'd on objfile_stack, and are | |
1932 | obstack_free'd when a shared library is unloaded. | |
1933 | Clear pointers that are about to become dangling. | |
1934 | Both .exp and .block fields will be restored next time we need to display | |
1935 | an item by re-parsing .exp_string field in the new execution context. */ | |
1936 | ||
1937 | static void | |
1938 | clear_dangling_display_expressions (struct so_list *solib) | |
1939 | { | |
c0201579 | 1940 | struct objfile *objfile = solib->objfile; |
a3247a22 | 1941 | struct display *d; |
a3247a22 | 1942 | |
c0201579 JK |
1943 | /* With no symbol file we cannot have a block or expression from it. */ |
1944 | if (objfile == NULL) | |
1945 | return; | |
1946 | if (objfile->separate_debug_objfile_backlink) | |
1947 | objfile = objfile->separate_debug_objfile_backlink; | |
1948 | gdb_assert (objfile->pspace == solib->pspace); | |
1949 | ||
1950 | for (d = display_chain; d != NULL; d = d->next) | |
a3247a22 | 1951 | { |
c0201579 JK |
1952 | if (d->pspace != solib->pspace) |
1953 | continue; | |
1954 | ||
1955 | if (lookup_objfile_from_block (d->block) == objfile | |
1956 | || (d->exp && exp_uses_objfile (d->exp, objfile))) | |
1957 | { | |
1958 | xfree (d->exp); | |
1959 | d->exp = NULL; | |
1960 | d->block = NULL; | |
1961 | } | |
a3247a22 PP |
1962 | } |
1963 | } | |
c906108c | 1964 | \f |
c5aa993b | 1965 | |
675dcf4f | 1966 | /* Print the value in stack frame FRAME of a variable specified by a |
aad95b57 TT |
1967 | struct symbol. NAME is the name to print; if NULL then VAR's print |
1968 | name will be used. STREAM is the ui_file on which to print the | |
1969 | value. INDENT specifies the number of indent levels to print | |
1970 | before printing the variable name. */ | |
c906108c SS |
1971 | |
1972 | void | |
aad95b57 TT |
1973 | print_variable_and_value (const char *name, struct symbol *var, |
1974 | struct frame_info *frame, | |
1975 | struct ui_file *stream, int indent) | |
c906108c | 1976 | { |
0f6a939d | 1977 | volatile struct gdb_exception except; |
c906108c | 1978 | |
aad95b57 TT |
1979 | if (!name) |
1980 | name = SYMBOL_PRINT_NAME (var); | |
1981 | ||
1982 | fprintf_filtered (stream, "%s%s = ", n_spaces (2 * indent), name); | |
0f6a939d PM |
1983 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1984 | { | |
1985 | struct value *val; | |
1986 | struct value_print_options opts; | |
aad95b57 | 1987 | |
0f6a939d PM |
1988 | val = read_var_value (var, frame); |
1989 | get_user_print_options (&opts); | |
3343315b | 1990 | opts.deref_ref = 1; |
0f6a939d PM |
1991 | common_val_print (val, stream, indent, &opts, current_language); |
1992 | } | |
1993 | if (except.reason < 0) | |
1994 | fprintf_filtered(stream, "<error reading variable %s (%s)>", name, | |
1995 | except.message); | |
aad95b57 | 1996 | fprintf_filtered (stream, "\n"); |
c906108c SS |
1997 | } |
1998 | ||
a04b0428 JB |
1999 | /* printf "printf format string" ARG to STREAM. */ |
2000 | ||
2001 | static void | |
2002 | ui_printf (char *arg, struct ui_file *stream) | |
c906108c | 2003 | { |
52f0bd74 AC |
2004 | char *f = NULL; |
2005 | char *s = arg; | |
c906108c | 2006 | char *string = NULL; |
3d6d86c6 | 2007 | struct value **val_args; |
c906108c SS |
2008 | char *substrings; |
2009 | char *current_substring; | |
2010 | int nargs = 0; | |
2011 | int allocated_args = 20; | |
2012 | struct cleanup *old_cleanups; | |
2013 | ||
675dcf4f | 2014 | val_args = xmalloc (allocated_args * sizeof (struct value *)); |
c13c43fd | 2015 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
c906108c SS |
2016 | |
2017 | if (s == 0) | |
e2e0b3e5 | 2018 | error_no_arg (_("format-control string and values to print")); |
c906108c | 2019 | |
e9cafbcc | 2020 | s = skip_spaces (s); |
c906108c | 2021 | |
675dcf4f | 2022 | /* A format string should follow, enveloped in double quotes. */ |
c906108c | 2023 | if (*s++ != '"') |
8a3fe4f8 | 2024 | error (_("Bad format string, missing '\"'.")); |
c906108c SS |
2025 | |
2026 | /* Parse the format-control string and copy it into the string STRING, | |
2027 | processing some kinds of escape sequence. */ | |
2028 | ||
2029 | f = string = (char *) alloca (strlen (s) + 1); | |
2030 | ||
2031 | while (*s != '"') | |
2032 | { | |
2033 | int c = *s++; | |
2034 | switch (c) | |
2035 | { | |
2036 | case '\0': | |
8a3fe4f8 | 2037 | error (_("Bad format string, non-terminated '\"'.")); |
c906108c SS |
2038 | |
2039 | case '\\': | |
2040 | switch (c = *s++) | |
2041 | { | |
2042 | case '\\': | |
2043 | *f++ = '\\'; | |
2044 | break; | |
2045 | case 'a': | |
c906108c | 2046 | *f++ = '\a'; |
c906108c SS |
2047 | break; |
2048 | case 'b': | |
2049 | *f++ = '\b'; | |
2050 | break; | |
2051 | case 'f': | |
2052 | *f++ = '\f'; | |
2053 | break; | |
2054 | case 'n': | |
2055 | *f++ = '\n'; | |
2056 | break; | |
2057 | case 'r': | |
2058 | *f++ = '\r'; | |
2059 | break; | |
2060 | case 't': | |
2061 | *f++ = '\t'; | |
2062 | break; | |
2063 | case 'v': | |
2064 | *f++ = '\v'; | |
2065 | break; | |
2066 | case '"': | |
2067 | *f++ = '"'; | |
2068 | break; | |
2069 | default: | |
0df8b418 | 2070 | /* ??? TODO: handle other escape sequences. */ |
8a3fe4f8 | 2071 | error (_("Unrecognized escape character \\%c in format string."), |
c906108c SS |
2072 | c); |
2073 | } | |
2074 | break; | |
2075 | ||
2076 | default: | |
2077 | *f++ = c; | |
2078 | } | |
2079 | } | |
2080 | ||
2081 | /* Skip over " and following space and comma. */ | |
2082 | s++; | |
2083 | *f++ = '\0'; | |
e9cafbcc | 2084 | s = skip_spaces (s); |
c906108c SS |
2085 | |
2086 | if (*s != ',' && *s != 0) | |
8a3fe4f8 | 2087 | error (_("Invalid argument syntax")); |
c906108c | 2088 | |
c5aa993b JM |
2089 | if (*s == ',') |
2090 | s++; | |
e9cafbcc | 2091 | s = skip_spaces (s); |
c906108c SS |
2092 | |
2093 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ | |
2094 | substrings = alloca (strlen (string) * 2); | |
2095 | current_substring = substrings; | |
2096 | ||
2097 | { | |
2098 | /* Now scan the string for %-specs and see what kinds of args they want. | |
2099 | argclass[I] classifies the %-specs so we can give printf_filtered | |
2100 | something of the right size. */ | |
2101 | ||
c5aa993b JM |
2102 | enum argclass |
2103 | { | |
6c7a06a3 TT |
2104 | int_arg, long_arg, long_long_arg, ptr_arg, |
2105 | string_arg, wide_string_arg, wide_char_arg, | |
1a619819 | 2106 | double_arg, long_double_arg, decfloat_arg |
c5aa993b | 2107 | }; |
c906108c SS |
2108 | enum argclass *argclass; |
2109 | enum argclass this_argclass; | |
2110 | char *last_arg; | |
2111 | int nargs_wanted; | |
c906108c SS |
2112 | int i; |
2113 | ||
2114 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); | |
2115 | nargs_wanted = 0; | |
2116 | f = string; | |
2117 | last_arg = string; | |
2118 | while (*f) | |
2119 | if (*f++ == '%') | |
2120 | { | |
46e9880c DJ |
2121 | int seen_hash = 0, seen_zero = 0, lcount = 0, seen_prec = 0; |
2122 | int seen_space = 0, seen_plus = 0; | |
0aea4bf3 LM |
2123 | int seen_big_l = 0, seen_h = 0, seen_big_h = 0; |
2124 | int seen_big_d = 0, seen_double_big_d = 0; | |
46e9880c DJ |
2125 | int bad = 0; |
2126 | ||
2127 | /* Check the validity of the format specifier, and work | |
2128 | out what argument it expects. We only accept C89 | |
2129 | format strings, with the exception of long long (which | |
2130 | we autoconf for). */ | |
2131 | ||
2132 | /* Skip over "%%". */ | |
2133 | if (*f == '%') | |
c906108c | 2134 | { |
c906108c | 2135 | f++; |
46e9880c | 2136 | continue; |
c906108c | 2137 | } |
46e9880c DJ |
2138 | |
2139 | /* The first part of a format specifier is a set of flag | |
2140 | characters. */ | |
2141 | while (strchr ("0-+ #", *f)) | |
2142 | { | |
2143 | if (*f == '#') | |
2144 | seen_hash = 1; | |
2145 | else if (*f == '0') | |
2146 | seen_zero = 1; | |
2147 | else if (*f == ' ') | |
2148 | seen_space = 1; | |
2149 | else if (*f == '+') | |
2150 | seen_plus = 1; | |
2151 | f++; | |
2152 | } | |
2153 | ||
2154 | /* The next part of a format specifier is a width. */ | |
2155 | while (strchr ("0123456789", *f)) | |
2156 | f++; | |
2157 | ||
2158 | /* The next part of a format specifier is a precision. */ | |
2159 | if (*f == '.') | |
2160 | { | |
2161 | seen_prec = 1; | |
2162 | f++; | |
2163 | while (strchr ("0123456789", *f)) | |
2164 | f++; | |
2165 | } | |
2166 | ||
2167 | /* The next part of a format specifier is a length modifier. */ | |
2168 | if (*f == 'h') | |
2169 | { | |
2170 | seen_h = 1; | |
2171 | f++; | |
2172 | } | |
2173 | else if (*f == 'l') | |
2174 | { | |
2175 | f++; | |
2176 | lcount++; | |
2177 | if (*f == 'l') | |
2178 | { | |
2179 | f++; | |
2180 | lcount++; | |
2181 | } | |
2182 | } | |
2183 | else if (*f == 'L') | |
2184 | { | |
2185 | seen_big_l = 1; | |
2186 | f++; | |
2187 | } | |
0aea4bf3 LM |
2188 | /* Decimal32 modifier. */ |
2189 | else if (*f == 'H') | |
2190 | { | |
2191 | seen_big_h = 1; | |
2192 | f++; | |
2193 | } | |
2194 | /* Decimal64 and Decimal128 modifiers. */ | |
2195 | else if (*f == 'D') | |
2196 | { | |
2197 | f++; | |
2198 | ||
2199 | /* Check for a Decimal128. */ | |
2200 | if (*f == 'D') | |
2201 | { | |
2202 | f++; | |
2203 | seen_double_big_d = 1; | |
2204 | } | |
2205 | else | |
2206 | seen_big_d = 1; | |
2207 | } | |
46e9880c | 2208 | |
c906108c SS |
2209 | switch (*f) |
2210 | { | |
46e9880c DJ |
2211 | case 'u': |
2212 | if (seen_hash) | |
2213 | bad = 1; | |
2214 | /* FALLTHROUGH */ | |
2215 | ||
2216 | case 'o': | |
2217 | case 'x': | |
2218 | case 'X': | |
2219 | if (seen_space || seen_plus) | |
2220 | bad = 1; | |
2221 | /* FALLTHROUGH */ | |
2222 | ||
2223 | case 'd': | |
2224 | case 'i': | |
2225 | if (lcount == 0) | |
2226 | this_argclass = int_arg; | |
2227 | else if (lcount == 1) | |
2228 | this_argclass = long_arg; | |
2229 | else | |
2230 | this_argclass = long_long_arg; | |
2231 | ||
2232 | if (seen_big_l) | |
2233 | bad = 1; | |
2234 | break; | |
2235 | ||
2236 | case 'c': | |
6c7a06a3 TT |
2237 | this_argclass = lcount == 0 ? int_arg : wide_char_arg; |
2238 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2239 | bad = 1; |
2240 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2241 | bad = 1; | |
2242 | break; | |
2243 | ||
2244 | case 'p': | |
2245 | this_argclass = ptr_arg; | |
2246 | if (lcount || seen_h || seen_big_l) | |
2247 | bad = 1; | |
2248 | if (seen_prec || seen_zero || seen_space || seen_plus) | |
2249 | bad = 1; | |
2250 | break; | |
2251 | ||
c906108c | 2252 | case 's': |
6c7a06a3 TT |
2253 | this_argclass = lcount == 0 ? string_arg : wide_string_arg; |
2254 | if (lcount > 1 || seen_h || seen_big_l) | |
46e9880c DJ |
2255 | bad = 1; |
2256 | if (seen_zero || seen_space || seen_plus) | |
2257 | bad = 1; | |
c906108c SS |
2258 | break; |
2259 | ||
2260 | case 'e': | |
2261 | case 'f': | |
2262 | case 'g': | |
46e9880c DJ |
2263 | case 'E': |
2264 | case 'G': | |
0aea4bf3 LM |
2265 | if (seen_big_h || seen_big_d || seen_double_big_d) |
2266 | this_argclass = decfloat_arg; | |
2267 | else if (seen_big_l) | |
46e9880c DJ |
2268 | this_argclass = long_double_arg; |
2269 | else | |
2270 | this_argclass = double_arg; | |
2271 | ||
2272 | if (lcount || seen_h) | |
2273 | bad = 1; | |
c906108c SS |
2274 | break; |
2275 | ||
2276 | case '*': | |
8a3fe4f8 | 2277 | error (_("`*' not supported for precision or width in printf")); |
c906108c SS |
2278 | |
2279 | case 'n': | |
8a3fe4f8 | 2280 | error (_("Format specifier `n' not supported in printf")); |
c906108c | 2281 | |
46e9880c DJ |
2282 | case '\0': |
2283 | error (_("Incomplete format specifier at end of format string")); | |
c906108c SS |
2284 | |
2285 | default: | |
46e9880c | 2286 | error (_("Unrecognized format specifier '%c' in printf"), *f); |
c906108c | 2287 | } |
46e9880c DJ |
2288 | |
2289 | if (bad) | |
3e43a32a MS |
2290 | error (_("Inappropriate modifiers to " |
2291 | "format specifier '%c' in printf"), | |
46e9880c DJ |
2292 | *f); |
2293 | ||
c906108c | 2294 | f++; |
09d71d23 AS |
2295 | |
2296 | if (lcount > 1 && USE_PRINTF_I64) | |
2297 | { | |
2298 | /* Windows' printf does support long long, but not the usual way. | |
2299 | Convert %lld to %I64d. */ | |
2300 | int length_before_ll = f - last_arg - 1 - lcount; | |
ad3bbd48 | 2301 | |
09d71d23 AS |
2302 | strncpy (current_substring, last_arg, length_before_ll); |
2303 | strcpy (current_substring + length_before_ll, "I64"); | |
2304 | current_substring[length_before_ll + 3] = | |
2305 | last_arg[length_before_ll + lcount]; | |
2306 | current_substring += length_before_ll + 4; | |
2307 | } | |
6c7a06a3 TT |
2308 | else if (this_argclass == wide_string_arg |
2309 | || this_argclass == wide_char_arg) | |
2310 | { | |
2311 | /* Convert %ls or %lc to %s. */ | |
2312 | int length_before_ls = f - last_arg - 2; | |
ad3bbd48 | 2313 | |
6c7a06a3 TT |
2314 | strncpy (current_substring, last_arg, length_before_ls); |
2315 | strcpy (current_substring + length_before_ls, "s"); | |
2316 | current_substring += length_before_ls + 2; | |
2317 | } | |
09d71d23 AS |
2318 | else |
2319 | { | |
2320 | strncpy (current_substring, last_arg, f - last_arg); | |
2321 | current_substring += f - last_arg; | |
2322 | } | |
46e9880c DJ |
2323 | *current_substring++ = '\0'; |
2324 | last_arg = f; | |
2325 | argclass[nargs_wanted++] = this_argclass; | |
c906108c SS |
2326 | } |
2327 | ||
2328 | /* Now, parse all arguments and evaluate them. | |
2329 | Store the VALUEs in VAL_ARGS. */ | |
2330 | ||
2331 | while (*s != '\0') | |
2332 | { | |
2333 | char *s1; | |
ad3bbd48 | 2334 | |
c906108c | 2335 | if (nargs == allocated_args) |
f976f6d4 AC |
2336 | val_args = (struct value **) xrealloc ((char *) val_args, |
2337 | (allocated_args *= 2) | |
2338 | * sizeof (struct value *)); | |
a04b0428 JB |
2339 | s1 = s; |
2340 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
c5aa993b | 2341 | |
c906108c SS |
2342 | nargs++; |
2343 | s = s1; | |
2344 | if (*s == ',') | |
2345 | s++; | |
2346 | } | |
c5aa993b | 2347 | |
c906108c | 2348 | if (nargs != nargs_wanted) |
8a3fe4f8 | 2349 | error (_("Wrong number of arguments for specified format-string")); |
c906108c SS |
2350 | |
2351 | /* Now actually print them. */ | |
2352 | current_substring = substrings; | |
2353 | for (i = 0; i < nargs; i++) | |
2354 | { | |
2355 | switch (argclass[i]) | |
2356 | { | |
2357 | case string_arg: | |
2358 | { | |
777ea8f1 | 2359 | gdb_byte *str; |
c906108c SS |
2360 | CORE_ADDR tem; |
2361 | int j; | |
ad3bbd48 | 2362 | |
1aa20aa8 | 2363 | tem = value_as_address (val_args[i]); |
c906108c SS |
2364 | |
2365 | /* This is a %s argument. Find the length of the string. */ | |
c5aa993b | 2366 | for (j = 0;; j++) |
c906108c | 2367 | { |
777ea8f1 | 2368 | gdb_byte c; |
ad3bbd48 | 2369 | |
c906108c | 2370 | QUIT; |
d4b2399a | 2371 | read_memory (tem + j, &c, 1); |
c906108c SS |
2372 | if (c == 0) |
2373 | break; | |
2374 | } | |
2375 | ||
2376 | /* Copy the string contents into a string inside GDB. */ | |
777ea8f1 | 2377 | str = (gdb_byte *) alloca (j + 1); |
7b92f6e1 MS |
2378 | if (j != 0) |
2379 | read_memory (tem, str, j); | |
c906108c SS |
2380 | str[j] = 0; |
2381 | ||
f1421989 | 2382 | fprintf_filtered (stream, current_substring, (char *) str); |
c906108c SS |
2383 | } |
2384 | break; | |
6c7a06a3 TT |
2385 | case wide_string_arg: |
2386 | { | |
2387 | gdb_byte *str; | |
2388 | CORE_ADDR tem; | |
2389 | int j; | |
50810684 UW |
2390 | struct gdbarch *gdbarch |
2391 | = get_type_arch (value_type (val_args[i])); | |
e17a4113 | 2392 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
50810684 | 2393 | struct type *wctype = lookup_typename (current_language, gdbarch, |
e6c014f2 | 2394 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2395 | int wcwidth = TYPE_LENGTH (wctype); |
2396 | gdb_byte *buf = alloca (wcwidth); | |
2397 | struct obstack output; | |
2398 | struct cleanup *inner_cleanup; | |
2399 | ||
2400 | tem = value_as_address (val_args[i]); | |
2401 | ||
2402 | /* This is a %s argument. Find the length of the string. */ | |
2403 | for (j = 0;; j += wcwidth) | |
2404 | { | |
2405 | QUIT; | |
2406 | read_memory (tem + j, buf, wcwidth); | |
e17a4113 | 2407 | if (extract_unsigned_integer (buf, wcwidth, byte_order) == 0) |
6c7a06a3 TT |
2408 | break; |
2409 | } | |
2410 | ||
2411 | /* Copy the string contents into a string inside GDB. */ | |
2412 | str = (gdb_byte *) alloca (j + wcwidth); | |
2413 | if (j != 0) | |
2414 | read_memory (tem, str, j); | |
2415 | memset (&str[j], 0, wcwidth); | |
2416 | ||
2417 | obstack_init (&output); | |
2418 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2419 | ||
f870a310 | 2420 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2421 | host_charset (), |
2422 | str, j, wcwidth, | |
2423 | &output, translit_char); | |
2424 | obstack_grow_str0 (&output, ""); | |
2425 | ||
f1421989 HZ |
2426 | fprintf_filtered (stream, current_substring, |
2427 | obstack_base (&output)); | |
6c7a06a3 TT |
2428 | do_cleanups (inner_cleanup); |
2429 | } | |
2430 | break; | |
2431 | case wide_char_arg: | |
2432 | { | |
50810684 UW |
2433 | struct gdbarch *gdbarch |
2434 | = get_type_arch (value_type (val_args[i])); | |
2435 | struct type *wctype = lookup_typename (current_language, gdbarch, | |
e6c014f2 | 2436 | "wchar_t", NULL, 0); |
6c7a06a3 TT |
2437 | struct type *valtype; |
2438 | struct obstack output; | |
2439 | struct cleanup *inner_cleanup; | |
2440 | const gdb_byte *bytes; | |
2441 | ||
2442 | valtype = value_type (val_args[i]); | |
2443 | if (TYPE_LENGTH (valtype) != TYPE_LENGTH (wctype) | |
2444 | || TYPE_CODE (valtype) != TYPE_CODE_INT) | |
2445 | error (_("expected wchar_t argument for %%lc")); | |
2446 | ||
2447 | bytes = value_contents (val_args[i]); | |
2448 | ||
2449 | obstack_init (&output); | |
2450 | inner_cleanup = make_cleanup_obstack_free (&output); | |
2451 | ||
f870a310 | 2452 | convert_between_encodings (target_wide_charset (gdbarch), |
6c7a06a3 TT |
2453 | host_charset (), |
2454 | bytes, TYPE_LENGTH (valtype), | |
2455 | TYPE_LENGTH (valtype), | |
2456 | &output, translit_char); | |
2457 | obstack_grow_str0 (&output, ""); | |
2458 | ||
f1421989 HZ |
2459 | fprintf_filtered (stream, current_substring, |
2460 | obstack_base (&output)); | |
6c7a06a3 TT |
2461 | do_cleanups (inner_cleanup); |
2462 | } | |
2463 | break; | |
c906108c SS |
2464 | case double_arg: |
2465 | { | |
b806fb9a UW |
2466 | struct type *type = value_type (val_args[i]); |
2467 | DOUBLEST val; | |
2468 | int inv; | |
2469 | ||
2470 | /* If format string wants a float, unchecked-convert the value | |
2471 | to floating point of the same size. */ | |
50810684 | 2472 | type = float_type_from_length (type); |
b806fb9a UW |
2473 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2474 | if (inv) | |
2475 | error (_("Invalid floating value found in program.")); | |
2476 | ||
f1421989 | 2477 | fprintf_filtered (stream, current_substring, (double) val); |
c906108c SS |
2478 | break; |
2479 | } | |
46e9880c DJ |
2480 | case long_double_arg: |
2481 | #ifdef HAVE_LONG_DOUBLE | |
2482 | { | |
b806fb9a UW |
2483 | struct type *type = value_type (val_args[i]); |
2484 | DOUBLEST val; | |
2485 | int inv; | |
2486 | ||
2487 | /* If format string wants a float, unchecked-convert the value | |
2488 | to floating point of the same size. */ | |
50810684 | 2489 | type = float_type_from_length (type); |
b806fb9a UW |
2490 | val = unpack_double (type, value_contents (val_args[i]), &inv); |
2491 | if (inv) | |
2492 | error (_("Invalid floating value found in program.")); | |
2493 | ||
f1421989 HZ |
2494 | fprintf_filtered (stream, current_substring, |
2495 | (long double) val); | |
46e9880c DJ |
2496 | break; |
2497 | } | |
2498 | #else | |
2499 | error (_("long double not supported in printf")); | |
2500 | #endif | |
c906108c SS |
2501 | case long_long_arg: |
2502 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2503 | { | |
2504 | long long val = value_as_long (val_args[i]); | |
ad3bbd48 | 2505 | |
f1421989 | 2506 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2507 | break; |
2508 | } | |
2509 | #else | |
8a3fe4f8 | 2510 | error (_("long long not supported in printf")); |
c906108c SS |
2511 | #endif |
2512 | case int_arg: | |
2513 | { | |
46e9880c | 2514 | int val = value_as_long (val_args[i]); |
ad3bbd48 | 2515 | |
f1421989 | 2516 | fprintf_filtered (stream, current_substring, val); |
46e9880c DJ |
2517 | break; |
2518 | } | |
2519 | case long_arg: | |
2520 | { | |
c906108c | 2521 | long val = value_as_long (val_args[i]); |
ad3bbd48 | 2522 | |
f1421989 | 2523 | fprintf_filtered (stream, current_substring, val); |
c906108c SS |
2524 | break; |
2525 | } | |
1a619819 | 2526 | |
0aea4bf3 LM |
2527 | /* Handles decimal floating values. */ |
2528 | case decfloat_arg: | |
1a619819 | 2529 | { |
0aea4bf3 | 2530 | const gdb_byte *param_ptr = value_contents (val_args[i]); |
ad3bbd48 | 2531 | |
1a619819 | 2532 | #if defined (PRINTF_HAS_DECFLOAT) |
0aea4bf3 LM |
2533 | /* If we have native support for Decimal floating |
2534 | printing, handle it here. */ | |
f1421989 | 2535 | fprintf_filtered (stream, current_substring, param_ptr); |
1a619819 | 2536 | #else |
1a619819 LM |
2537 | |
2538 | /* As a workaround until vasprintf has native support for DFP | |
0aea4bf3 LM |
2539 | we convert the DFP values to string and print them using |
2540 | the %s format specifier. */ | |
2541 | ||
2542 | char *eos, *sos; | |
2543 | int nnull_chars = 0; | |
2544 | ||
2545 | /* Parameter data. */ | |
2546 | struct type *param_type = value_type (val_args[i]); | |
2547 | unsigned int param_len = TYPE_LENGTH (param_type); | |
50810684 | 2548 | struct gdbarch *gdbarch = get_type_arch (param_type); |
e17a4113 | 2549 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); |
0aea4bf3 LM |
2550 | |
2551 | /* DFP output data. */ | |
2552 | struct value *dfp_value = NULL; | |
2553 | gdb_byte *dfp_ptr; | |
2554 | int dfp_len = 16; | |
2555 | gdb_byte dec[16]; | |
2556 | struct type *dfp_type = NULL; | |
2557 | char decstr[MAX_DECIMAL_STRING]; | |
1a619819 LM |
2558 | |
2559 | /* Points to the end of the string so that we can go back | |
0aea4bf3 | 2560 | and check for DFP length modifiers. */ |
1a619819 LM |
2561 | eos = current_substring + strlen (current_substring); |
2562 | ||
0aea4bf3 LM |
2563 | /* Look for the float/double format specifier. */ |
2564 | while (*eos != 'f' && *eos != 'e' && *eos != 'E' | |
2565 | && *eos != 'g' && *eos != 'G') | |
2566 | eos--; | |
2567 | ||
2568 | sos = eos; | |
2569 | ||
2570 | /* Search for the '%' char and extract the size and type of | |
2571 | the output decimal value based on its modifiers | |
2572 | (%Hf, %Df, %DDf). */ | |
2573 | while (*--sos != '%') | |
2574 | { | |
2575 | if (*sos == 'H') | |
2576 | { | |
2577 | dfp_len = 4; | |
50810684 | 2578 | dfp_type = builtin_type (gdbarch)->builtin_decfloat; |
0aea4bf3 LM |
2579 | } |
2580 | else if (*sos == 'D' && *(sos - 1) == 'D') | |
2581 | { | |
2582 | dfp_len = 16; | |
50810684 | 2583 | dfp_type = builtin_type (gdbarch)->builtin_declong; |
0aea4bf3 LM |
2584 | sos--; |
2585 | } | |
2586 | else | |
2587 | { | |
2588 | dfp_len = 8; | |
50810684 | 2589 | dfp_type = builtin_type (gdbarch)->builtin_decdouble; |
0aea4bf3 LM |
2590 | } |
2591 | } | |
2592 | ||
2593 | /* Replace %Hf, %Df and %DDf with %s's. */ | |
2594 | *++sos = 's'; | |
2595 | ||
2596 | /* Go through the whole format string and pull the correct | |
2597 | number of chars back to compensate for the change in the | |
2598 | format specifier. */ | |
2599 | while (nnull_chars < nargs - i) | |
2600 | { | |
2601 | if (*eos == '\0') | |
2602 | nnull_chars++; | |
2603 | ||
2604 | *++sos = *++eos; | |
2605 | } | |
2606 | ||
2607 | /* Conversion between different DFP types. */ | |
2608 | if (TYPE_CODE (param_type) == TYPE_CODE_DECFLOAT) | |
e17a4113 UW |
2609 | decimal_convert (param_ptr, param_len, byte_order, |
2610 | dec, dfp_len, byte_order); | |
0aea4bf3 LM |
2611 | else |
2612 | /* If this is a non-trivial conversion, just output 0. | |
2613 | A correct converted value can be displayed by explicitly | |
2614 | casting to a DFP type. */ | |
e17a4113 | 2615 | decimal_from_string (dec, dfp_len, byte_order, "0"); |
0aea4bf3 LM |
2616 | |
2617 | dfp_value = value_from_decfloat (dfp_type, dec); | |
2618 | ||
2619 | dfp_ptr = (gdb_byte *) value_contents (dfp_value); | |
2620 | ||
e17a4113 | 2621 | decimal_to_string (dfp_ptr, dfp_len, byte_order, decstr); |
1a619819 LM |
2622 | |
2623 | /* Print the DFP value. */ | |
f1421989 | 2624 | fprintf_filtered (stream, current_substring, decstr); |
0aea4bf3 | 2625 | |
1a619819 LM |
2626 | break; |
2627 | #endif | |
2628 | } | |
2629 | ||
2025a643 DJ |
2630 | case ptr_arg: |
2631 | { | |
2632 | /* We avoid the host's %p because pointers are too | |
2633 | likely to be the wrong size. The only interesting | |
2634 | modifier for %p is a width; extract that, and then | |
2635 | handle %p as glibc would: %#x or a literal "(nil)". */ | |
2636 | ||
2637 | char *p, *fmt, *fmt_p; | |
2638 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2639 | long long val = value_as_long (val_args[i]); | |
2640 | #else | |
2641 | long val = value_as_long (val_args[i]); | |
2642 | #endif | |
2643 | ||
2644 | fmt = alloca (strlen (current_substring) + 5); | |
2645 | ||
2646 | /* Copy up to the leading %. */ | |
2647 | p = current_substring; | |
2648 | fmt_p = fmt; | |
2649 | while (*p) | |
2650 | { | |
2651 | int is_percent = (*p == '%'); | |
ad3bbd48 | 2652 | |
2025a643 DJ |
2653 | *fmt_p++ = *p++; |
2654 | if (is_percent) | |
2655 | { | |
2656 | if (*p == '%') | |
2657 | *fmt_p++ = *p++; | |
2658 | else | |
2659 | break; | |
2660 | } | |
2661 | } | |
2662 | ||
2663 | if (val != 0) | |
2664 | *fmt_p++ = '#'; | |
2665 | ||
2666 | /* Copy any width. */ | |
2667 | while (*p >= '0' && *p < '9') | |
2668 | *fmt_p++ = *p++; | |
2669 | ||
2670 | gdb_assert (*p == 'p' && *(p + 1) == '\0'); | |
2671 | if (val != 0) | |
2672 | { | |
2673 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
2674 | *fmt_p++ = 'l'; | |
2675 | #endif | |
2676 | *fmt_p++ = 'l'; | |
2677 | *fmt_p++ = 'x'; | |
2678 | *fmt_p++ = '\0'; | |
f1421989 | 2679 | fprintf_filtered (stream, fmt, val); |
2025a643 DJ |
2680 | } |
2681 | else | |
2682 | { | |
2683 | *fmt_p++ = 's'; | |
2684 | *fmt_p++ = '\0'; | |
f1421989 | 2685 | fprintf_filtered (stream, fmt, "(nil)"); |
2025a643 DJ |
2686 | } |
2687 | ||
2688 | break; | |
2689 | } | |
675dcf4f MK |
2690 | default: |
2691 | internal_error (__FILE__, __LINE__, | |
2025a643 | 2692 | _("failed internal consistency check")); |
c906108c SS |
2693 | } |
2694 | /* Skip to the next substring. */ | |
2695 | current_substring += strlen (current_substring) + 1; | |
2696 | } | |
a0e0ef55 TT |
2697 | /* Print the portion of the format string after the last argument. |
2698 | Note that this will not include any ordinary %-specs, but it | |
2699 | might include "%%". That is why we use printf_filtered and not | |
1b93ff13 TT |
2700 | puts_filtered here. Also, we pass a dummy argument because |
2701 | some platforms have modified GCC to include -Wformat-security | |
2702 | by default, which will warn here if there is no argument. */ | |
f1421989 | 2703 | fprintf_filtered (stream, last_arg, 0); |
c906108c SS |
2704 | } |
2705 | do_cleanups (old_cleanups); | |
2706 | } | |
c906108c | 2707 | |
f1421989 HZ |
2708 | /* Implement the "printf" command. */ |
2709 | ||
a04b0428 | 2710 | static void |
f1421989 HZ |
2711 | printf_command (char *arg, int from_tty) |
2712 | { | |
a04b0428 | 2713 | ui_printf (arg, gdb_stdout); |
f1421989 HZ |
2714 | } |
2715 | ||
2716 | /* Implement the "eval" command. */ | |
2717 | ||
2718 | static void | |
2719 | eval_command (char *arg, int from_tty) | |
2720 | { | |
2721 | struct ui_file *ui_out = mem_fileopen (); | |
2722 | struct cleanup *cleanups = make_cleanup_ui_file_delete (ui_out); | |
2723 | char *expanded; | |
2724 | ||
a04b0428 | 2725 | ui_printf (arg, ui_out); |
f1421989 HZ |
2726 | |
2727 | expanded = ui_file_xstrdup (ui_out, NULL); | |
2728 | make_cleanup (xfree, expanded); | |
2729 | ||
2730 | execute_command (expanded, from_tty); | |
2731 | ||
2732 | do_cleanups (cleanups); | |
2733 | } | |
2734 | ||
c906108c | 2735 | void |
fba45db2 | 2736 | _initialize_printcmd (void) |
c906108c | 2737 | { |
c94fdfd0 EZ |
2738 | struct cmd_list_element *c; |
2739 | ||
c906108c SS |
2740 | current_display_number = -1; |
2741 | ||
a3247a22 PP |
2742 | observer_attach_solib_unloaded (clear_dangling_display_expressions); |
2743 | ||
c906108c | 2744 | add_info ("address", address_info, |
1bedd215 | 2745 | _("Describe where symbol SYM is stored.")); |
c906108c | 2746 | |
1bedd215 AC |
2747 | add_info ("symbol", sym_info, _("\ |
2748 | Describe what symbol is at location ADDR.\n\ | |
2749 | Only for symbols with fixed locations (global or static scope).")); | |
c906108c | 2750 | |
1bedd215 AC |
2751 | add_com ("x", class_vars, x_command, _("\ |
2752 | Examine memory: x/FMT ADDRESS.\n\ | |
c906108c SS |
2753 | ADDRESS is an expression for the memory address to examine.\n\ |
2754 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
2755 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
1bedd215 AC |
2756 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
2757 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ | |
c906108c SS |
2758 | The specified number of objects of the specified size are printed\n\ |
2759 | according to the format.\n\n\ | |
2760 | Defaults for format and size letters are those previously used.\n\ | |
2761 | Default count is 1. Default address is following last thing printed\n\ | |
1bedd215 | 2762 | with this command or \"print\".")); |
c906108c | 2763 | |
c906108c SS |
2764 | #if 0 |
2765 | add_com ("whereis", class_vars, whereis_command, | |
1bedd215 | 2766 | _("Print line number and file of definition of variable.")); |
c906108c | 2767 | #endif |
c5aa993b | 2768 | |
1bedd215 AC |
2769 | add_info ("display", display_info, _("\ |
2770 | Expressions to display when program stops, with code numbers.")); | |
c906108c | 2771 | |
1a966eab AC |
2772 | add_cmd ("undisplay", class_vars, undisplay_command, _("\ |
2773 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2774 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2775 | No argument means cancel all automatic-display expressions.\n\ | |
2776 | \"delete display\" has the same effect as this command.\n\ | |
1a966eab | 2777 | Do \"info display\" to see current list of code numbers."), |
c5aa993b | 2778 | &cmdlist); |
c906108c | 2779 | |
1bedd215 AC |
2780 | add_com ("display", class_vars, display_command, _("\ |
2781 | Print value of expression EXP each time the program stops.\n\ | |
c906108c SS |
2782 | /FMT may be used before EXP as in the \"print\" command.\n\ |
2783 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
2784 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
2785 | and examining is done as in the \"x\" command.\n\n\ | |
2786 | With no argument, display all currently requested auto-display expressions.\n\ | |
1bedd215 | 2787 | Use \"undisplay\" to cancel display requests previously made.")); |
c906108c | 2788 | |
c9174737 | 2789 | add_cmd ("display", class_vars, enable_display_command, _("\ |
1a966eab | 2790 | Enable some expressions to be displayed when program stops.\n\ |
c906108c SS |
2791 | Arguments are the code numbers of the expressions to resume displaying.\n\ |
2792 | No argument means enable all automatic-display expressions.\n\ | |
1a966eab | 2793 | Do \"info display\" to see current list of code numbers."), &enablelist); |
c906108c | 2794 | |
1a966eab AC |
2795 | add_cmd ("display", class_vars, disable_display_command, _("\ |
2796 | Disable some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2797 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2798 | No argument means disable all automatic-display expressions.\n\ | |
1a966eab | 2799 | Do \"info display\" to see current list of code numbers."), &disablelist); |
c906108c | 2800 | |
1a966eab AC |
2801 | add_cmd ("display", class_vars, undisplay_command, _("\ |
2802 | Cancel some expressions to be displayed when program stops.\n\ | |
c906108c SS |
2803 | Arguments are the code numbers of the expressions to stop displaying.\n\ |
2804 | No argument means cancel all automatic-display expressions.\n\ | |
1a966eab | 2805 | Do \"info display\" to see current list of code numbers."), &deletelist); |
c906108c | 2806 | |
1bedd215 AC |
2807 | add_com ("printf", class_vars, printf_command, _("\ |
2808 | printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2809 | This is useful for formatted output in user-defined commands.")); | |
c906108c | 2810 | |
1bedd215 AC |
2811 | add_com ("output", class_vars, output_command, _("\ |
2812 | Like \"print\" but don't put in value history and don't print newline.\n\ | |
2813 | This is useful in user-defined commands.")); | |
c906108c | 2814 | |
1bedd215 AC |
2815 | add_prefix_cmd ("set", class_vars, set_command, _("\ |
2816 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2817 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2818 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2819 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2820 | variable in the program being debugged. EXP is any valid expression.\n\ |
2821 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
2822 | \n\ | |
2823 | With a subcommand, this command modifies parts of the gdb environment.\n\ | |
2824 | You can see these environment settings with the \"show\" command."), | |
c5aa993b | 2825 | &setlist, "set ", 1, &cmdlist); |
c906108c | 2826 | if (dbx_commands) |
1bedd215 AC |
2827 | add_com ("assign", class_vars, set_command, _("\ |
2828 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2829 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2830 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2831 | with $), a register (a few standard names starting with $), or an actual\n\ | |
1bedd215 AC |
2832 | variable in the program being debugged. EXP is any valid expression.\n\ |
2833 | Use \"set variable\" for variables with names identical to set subcommands.\n\ | |
c906108c | 2834 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ |
1bedd215 | 2835 | You can see these environment settings with the \"show\" command.")); |
c906108c | 2836 | |
0df8b418 | 2837 | /* "call" is the same as "set", but handy for dbx users to call fns. */ |
1bedd215 AC |
2838 | c = add_com ("call", class_vars, call_command, _("\ |
2839 | Call a function in the program.\n\ | |
c906108c SS |
2840 | The argument is the function name and arguments, in the notation of the\n\ |
2841 | current working language. The result is printed and saved in the value\n\ | |
1bedd215 | 2842 | history, if it is not void.")); |
65d12d83 | 2843 | set_cmd_completer (c, expression_completer); |
c906108c | 2844 | |
1a966eab AC |
2845 | add_cmd ("variable", class_vars, set_command, _("\ |
2846 | Evaluate expression EXP and assign result to variable VAR, using assignment\n\ | |
c906108c SS |
2847 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ |
2848 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2849 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2850 | variable in the program being debugged. EXP is any valid expression.\n\ | |
1a966eab | 2851 | This may usually be abbreviated to simply \"set\"."), |
c5aa993b | 2852 | &setlist); |
c906108c | 2853 | |
1bedd215 AC |
2854 | c = add_com ("print", class_vars, print_command, _("\ |
2855 | Print value of expression EXP.\n\ | |
c906108c SS |
2856 | Variables accessible are those of the lexical environment of the selected\n\ |
2857 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2858 | \n\ | |
2859 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2860 | $$NUM refers to NUM'th value back from the last one.\n\ | |
1bedd215 AC |
2861 | Names starting with $ refer to registers (with the values they would have\n\ |
2862 | if the program were to return to the stack frame now selected, restoring\n\ | |
c906108c SS |
2863 | all registers saved by frames farther in) or else to debugger\n\ |
2864 | \"convenience\" variables (any such name not a known register).\n\ | |
1bedd215 AC |
2865 | Use assignment expressions to give values to convenience variables.\n\ |
2866 | \n\ | |
c906108c SS |
2867 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ |
2868 | @ is a binary operator for treating consecutive data objects\n\ | |
2869 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2870 | element is FOO, whose second element is stored in the space following\n\ | |
2871 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
1bedd215 AC |
2872 | resides in memory.\n\ |
2873 | \n\ | |
c906108c | 2874 | EXP may be preceded with /FMT, where FMT is a format letter\n\ |
1bedd215 | 2875 | but no count or size letter (see \"x\" command).")); |
65d12d83 | 2876 | set_cmd_completer (c, expression_completer); |
c906108c SS |
2877 | add_com_alias ("p", "print", class_vars, 1); |
2878 | ||
1bedd215 AC |
2879 | c = add_com ("inspect", class_vars, inspect_command, _("\ |
2880 | Same as \"print\" command, except that if you are running in the epoch\n\ | |
2881 | environment, the value is printed in its own window.")); | |
65d12d83 | 2882 | set_cmd_completer (c, expression_completer); |
c906108c | 2883 | |
35096d9d AC |
2884 | add_setshow_uinteger_cmd ("max-symbolic-offset", no_class, |
2885 | &max_symbolic_offset, _("\ | |
2886 | Set the largest offset that will be printed in <symbol+1234> form."), _("\ | |
2887 | Show the largest offset that will be printed in <symbol+1234> form."), NULL, | |
2888 | NULL, | |
920d2a44 | 2889 | show_max_symbolic_offset, |
35096d9d | 2890 | &setprintlist, &showprintlist); |
5bf193a2 AC |
2891 | add_setshow_boolean_cmd ("symbol-filename", no_class, |
2892 | &print_symbol_filename, _("\ | |
2893 | Set printing of source filename and line number with <symbol>."), _("\ | |
2894 | Show printing of source filename and line number with <symbol>."), NULL, | |
2895 | NULL, | |
920d2a44 | 2896 | show_print_symbol_filename, |
5bf193a2 | 2897 | &setprintlist, &showprintlist); |
f1421989 HZ |
2898 | |
2899 | add_com ("eval", no_class, eval_command, _("\ | |
2900 | Convert \"printf format string\", arg1, arg2, arg3, ..., argn to\n\ | |
2901 | a command line, and call it.")); | |
c906108c | 2902 | } |