Commit | Line | Data |
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bd5635a1 | 1 | /* Print values for GNU debugger GDB. |
7d9884b9 | 2 | Copyright 1986, 1987, 1988, 1989, 1990, 1991 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
36b9d39c | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
36b9d39c JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
36b9d39c | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
36b9d39c JG |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 19 | |
bd5635a1 | 20 | #include "defs.h" |
1eeba686 | 21 | #include <string.h> |
19bdd57f | 22 | #include <varargs.h> |
bd5635a1 RP |
23 | #include "frame.h" |
24 | #include "symtab.h" | |
93fe4e33 | 25 | #include "gdbtypes.h" |
bd5635a1 | 26 | #include "value.h" |
c4668207 | 27 | #include "language.h" |
bd5635a1 RP |
28 | #include "expression.h" |
29 | #include "gdbcore.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "target.h" | |
93fe4e33 | 32 | #include "breakpoint.h" |
4d38b5a8 | 33 | #include "demangle.h" |
199b2450 | 34 | #include "valprint.h" |
bd5635a1 RP |
35 | |
36 | extern int asm_demangle; /* Whether to demangle syms in asm printouts */ | |
36b9d39c | 37 | extern int addressprint; /* Whether to print hex addresses in HLL " */ |
bd5635a1 | 38 | |
bd5635a1 RP |
39 | struct format_data |
40 | { | |
41 | int count; | |
42 | char format; | |
43 | char size; | |
44 | }; | |
45 | ||
46 | /* Last specified output format. */ | |
47 | ||
48 | static char last_format = 'x'; | |
49 | ||
50 | /* Last specified examination size. 'b', 'h', 'w' or `q'. */ | |
51 | ||
52 | static char last_size = 'w'; | |
53 | ||
54 | /* Default address to examine next. */ | |
55 | ||
56 | static CORE_ADDR next_address; | |
57 | ||
58 | /* Last address examined. */ | |
59 | ||
60 | static CORE_ADDR last_examine_address; | |
61 | ||
62 | /* Contents of last address examined. | |
63 | This is not valid past the end of the `x' command! */ | |
64 | ||
65 | static value last_examine_value; | |
66 | ||
f77ad505 FF |
67 | /* Largest offset between a symbolic value and an address, that will be |
68 | printed as `0x1234 <symbol+offset>'. */ | |
69 | ||
70 | static unsigned int max_symbolic_offset = UINT_MAX; | |
71 | ||
b7ccd8e0 PS |
72 | /* Append the source filename and linenumber of the symbol when |
73 | printing a symbolic value as `<symbol at filename:linenum>' if set. */ | |
74 | static int print_symbol_filename = 0; | |
75 | ||
bd5635a1 | 76 | /* Number of auto-display expression currently being displayed. |
f77ad505 | 77 | So that we can disable it if we get an error or a signal within it. |
bd5635a1 RP |
78 | -1 when not doing one. */ |
79 | ||
80 | int current_display_number; | |
81 | ||
82 | /* Flag to low-level print routines that this value is being printed | |
83 | in an epoch window. We'd like to pass this as a parameter, but | |
84 | every routine would need to take it. Perhaps we can encapsulate | |
85 | this in the I/O stream once we have GNU stdio. */ | |
86 | ||
87 | int inspect_it = 0; | |
88 | ||
93fe4e33 JG |
89 | struct display |
90 | { | |
91 | /* Chain link to next auto-display item. */ | |
92 | struct display *next; | |
93 | /* Expression to be evaluated and displayed. */ | |
94 | struct expression *exp; | |
95 | /* Item number of this auto-display item. */ | |
96 | int number; | |
97 | /* Display format specified. */ | |
98 | struct format_data format; | |
99 | /* Innermost block required by this expression when evaluated */ | |
100 | struct block *block; | |
101 | /* Status of this display (enabled or disabled) */ | |
8f869b45 | 102 | enum enable status; |
93fe4e33 JG |
103 | }; |
104 | ||
105 | /* Chain of expressions whose values should be displayed | |
106 | automatically each time the program stops. */ | |
107 | ||
108 | static struct display *display_chain; | |
109 | ||
110 | static int display_number; | |
111 | ||
112 | /* Prototypes for local functions */ | |
113 | ||
114 | static void | |
115 | delete_display PARAMS ((int)); | |
116 | ||
117 | static void | |
4d38b5a8 | 118 | enable_display PARAMS ((char *, int)); |
93fe4e33 JG |
119 | |
120 | static void | |
121 | disable_display_command PARAMS ((char *, int)); | |
122 | ||
123 | static void | |
124 | disassemble_command PARAMS ((char *, int)); | |
125 | ||
93fe4e33 JG |
126 | static void |
127 | printf_command PARAMS ((char *, int)); | |
128 | ||
129 | static void | |
f77ad505 | 130 | print_frame_nameless_args PARAMS ((struct frame_info *, long, int, int, |
199b2450 | 131 | GDB_FILE *)); |
93fe4e33 JG |
132 | |
133 | static void | |
4d38b5a8 | 134 | display_info PARAMS ((char *, int)); |
93fe4e33 JG |
135 | |
136 | static void | |
137 | do_one_display PARAMS ((struct display *)); | |
138 | ||
139 | static void | |
4d38b5a8 | 140 | undisplay_command PARAMS ((char *, int)); |
93fe4e33 JG |
141 | |
142 | static void | |
143 | free_display PARAMS ((struct display *)); | |
144 | ||
145 | static void | |
146 | display_command PARAMS ((char *, int)); | |
147 | ||
93fe4e33 JG |
148 | static void |
149 | x_command PARAMS ((char *, int)); | |
150 | ||
151 | static void | |
152 | address_info PARAMS ((char *, int)); | |
153 | ||
154 | static void | |
155 | set_command PARAMS ((char *, int)); | |
156 | ||
157 | static void | |
158 | output_command PARAMS ((char *, int)); | |
bd5635a1 | 159 | |
93fe4e33 JG |
160 | static void |
161 | call_command PARAMS ((char *, int)); | |
162 | ||
163 | static void | |
164 | inspect_command PARAMS ((char *, int)); | |
165 | ||
166 | static void | |
167 | print_command PARAMS ((char *, int)); | |
168 | ||
169 | static void | |
170 | print_command_1 PARAMS ((char *, int, int)); | |
171 | ||
172 | static void | |
173 | validate_format PARAMS ((struct format_data, char *)); | |
174 | ||
175 | static void | |
176 | do_examine PARAMS ((struct format_data, CORE_ADDR)); | |
177 | ||
178 | static void | |
179 | print_formatted PARAMS ((value, int, int)); | |
180 | ||
181 | static struct format_data | |
182 | decode_format PARAMS ((char **, int, int)); | |
bd5635a1 RP |
183 | |
184 | \f | |
185 | /* Decode a format specification. *STRING_PTR should point to it. | |
186 | OFORMAT and OSIZE are used as defaults for the format and size | |
187 | if none are given in the format specification. | |
188 | If OSIZE is zero, then the size field of the returned value | |
189 | should be set only if a size is explicitly specified by the | |
190 | user. | |
191 | The structure returned describes all the data | |
192 | found in the specification. In addition, *STRING_PTR is advanced | |
193 | past the specification and past all whitespace following it. */ | |
194 | ||
93fe4e33 | 195 | static struct format_data |
bd5635a1 RP |
196 | decode_format (string_ptr, oformat, osize) |
197 | char **string_ptr; | |
93fe4e33 JG |
198 | int oformat; |
199 | int osize; | |
bd5635a1 RP |
200 | { |
201 | struct format_data val; | |
202 | register char *p = *string_ptr; | |
203 | ||
204 | val.format = '?'; | |
205 | val.size = '?'; | |
206 | val.count = 1; | |
207 | ||
208 | if (*p >= '0' && *p <= '9') | |
209 | val.count = atoi (p); | |
210 | while (*p >= '0' && *p <= '9') p++; | |
211 | ||
212 | /* Now process size or format letters that follow. */ | |
213 | ||
214 | while (1) | |
215 | { | |
216 | if (*p == 'b' || *p == 'h' || *p == 'w' || *p == 'g') | |
217 | val.size = *p++; | |
bd5635a1 RP |
218 | else if (*p >= 'a' && *p <= 'z') |
219 | val.format = *p++; | |
220 | else | |
221 | break; | |
222 | } | |
223 | ||
6fe90fc8 | 224 | #ifndef CC_HAS_LONG_LONG |
bd5635a1 RP |
225 | /* Make sure 'g' size is not used on integer types. |
226 | Well, actually, we can handle hex. */ | |
227 | if (val.size == 'g' && val.format != 'f' && val.format != 'x') | |
228 | val.size = 'w'; | |
229 | #endif | |
230 | ||
231 | while (*p == ' ' || *p == '\t') p++; | |
232 | *string_ptr = p; | |
233 | ||
234 | /* Set defaults for format and size if not specified. */ | |
235 | if (val.format == '?') | |
236 | { | |
237 | if (val.size == '?') | |
238 | { | |
239 | /* Neither has been specified. */ | |
240 | val.format = oformat; | |
241 | val.size = osize; | |
242 | } | |
243 | else | |
244 | /* If a size is specified, any format makes a reasonable | |
245 | default except 'i'. */ | |
246 | val.format = oformat == 'i' ? 'x' : oformat; | |
247 | } | |
248 | else if (val.size == '?') | |
249 | switch (val.format) | |
250 | { | |
251 | case 'a': | |
252 | case 's': | |
253 | /* Addresses must be words. */ | |
254 | val.size = osize ? 'w' : osize; | |
255 | break; | |
256 | case 'f': | |
257 | /* Floating point has to be word or giantword. */ | |
258 | if (osize == 'w' || osize == 'g') | |
259 | val.size = osize; | |
260 | else | |
261 | /* Default it to giantword if the last used size is not | |
262 | appropriate. */ | |
263 | val.size = osize ? 'g' : osize; | |
264 | break; | |
265 | case 'c': | |
266 | /* Characters default to one byte. */ | |
267 | val.size = osize ? 'b' : osize; | |
268 | break; | |
269 | default: | |
270 | /* The default is the size most recently specified. */ | |
271 | val.size = osize; | |
272 | } | |
273 | ||
274 | return val; | |
275 | } | |
276 | \f | |
199b2450 | 277 | /* Print value VAL on gdb_stdout according to FORMAT, a letter or 0. |
bd5635a1 RP |
278 | Do not end with a newline. |
279 | 0 means print VAL according to its own type. | |
280 | SIZE is the letter for the size of datum being printed. | |
281 | This is used to pad hex numbers so they line up. */ | |
282 | ||
283 | static void | |
284 | print_formatted (val, format, size) | |
285 | register value val; | |
93fe4e33 JG |
286 | register int format; |
287 | int size; | |
bd5635a1 RP |
288 | { |
289 | int len = TYPE_LENGTH (VALUE_TYPE (val)); | |
290 | ||
291 | if (VALUE_LVAL (val) == lval_memory) | |
292 | next_address = VALUE_ADDRESS (val) + len; | |
293 | ||
294 | switch (format) | |
295 | { | |
296 | case 's': | |
297 | next_address = VALUE_ADDRESS (val) | |
199b2450 | 298 | + value_print (value_addr (val), gdb_stdout, format, Val_pretty_default); |
bd5635a1 RP |
299 | break; |
300 | ||
301 | case 'i': | |
43795ece JK |
302 | /* The old comment says |
303 | "Force output out, print_insn not using _filtered". | |
304 | I'm not completely sure what that means, I suspect most print_insn | |
305 | now do use _filtered, so I guess it's obsolete. */ | |
306 | /* We often wrap here if there are long symbolic names. */ | |
19bdd57f | 307 | wrap_here (" "); |
bd5635a1 | 308 | next_address = VALUE_ADDRESS (val) |
199b2450 | 309 | + print_insn (VALUE_ADDRESS (val), gdb_stdout); |
bd5635a1 RP |
310 | break; |
311 | ||
312 | default: | |
313 | if (format == 0 | |
314 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_ARRAY | |
7dc15bb7 | 315 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_STRING |
bd5635a1 RP |
316 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_STRUCT |
317 | || TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_UNION | |
318 | || VALUE_REPEATED (val)) | |
199b2450 | 319 | value_print (val, gdb_stdout, format, Val_pretty_default); |
bd5635a1 RP |
320 | else |
321 | print_scalar_formatted (VALUE_CONTENTS (val), VALUE_TYPE (val), | |
199b2450 | 322 | format, size, gdb_stdout); |
bd5635a1 RP |
323 | } |
324 | } | |
325 | ||
326 | /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR, | |
327 | according to letters FORMAT and SIZE on STREAM. | |
328 | FORMAT may not be zero. Formats s and i are not supported at this level. | |
329 | ||
330 | This is how the elements of an array or structure are printed | |
331 | with a format. */ | |
332 | ||
333 | void | |
334 | print_scalar_formatted (valaddr, type, format, size, stream) | |
335 | char *valaddr; | |
336 | struct type *type; | |
93fe4e33 | 337 | int format; |
bd5635a1 | 338 | int size; |
199b2450 | 339 | GDB_FILE *stream; |
bd5635a1 RP |
340 | { |
341 | LONGEST val_long; | |
342 | int len = TYPE_LENGTH (type); | |
343 | ||
b0f61d04 JK |
344 | if (len > sizeof (LONGEST) |
345 | && (format == 't' | |
346 | || format == 'c' | |
347 | || format == 'o' | |
348 | || format == 'u' | |
349 | || format == 'd' | |
350 | || format == 'x')) | |
bd5635a1 | 351 | { |
b0f61d04 JK |
352 | /* We can't print it normally, but we can print it in hex. |
353 | Printing it in the wrong radix is more useful than saying | |
354 | "use /x, you dummy". */ | |
355 | /* FIXME: we could also do octal or binary if that was the | |
356 | desired format. */ | |
357 | /* FIXME: we should be using the size field to give us a minimum | |
358 | field width to print. */ | |
359 | val_print_type_code_int (type, valaddr, stream); | |
bd5635a1 RP |
360 | return; |
361 | } | |
b0f61d04 | 362 | |
bd5635a1 RP |
363 | val_long = unpack_long (type, valaddr); |
364 | ||
f73b07c9 JK |
365 | /* If we are printing it as unsigned, truncate it in case it is actually |
366 | a negative signed value (e.g. "print/u (short)-1" should print 65535 | |
367 | (if shorts are 16 bits) instead of 4294967295). */ | |
bd5635a1 RP |
368 | if (format != 'd') |
369 | { | |
f73b07c9 JK |
370 | if (len < sizeof (LONGEST)) |
371 | val_long &= ((LONGEST) 1 << HOST_CHAR_BIT * len) - 1; | |
bd5635a1 RP |
372 | } |
373 | ||
374 | switch (format) | |
375 | { | |
376 | case 'x': | |
377 | if (!size) | |
378 | { | |
379 | /* no size specified, like in print. Print varying # of digits. */ | |
6fe90fc8 | 380 | print_longest (stream, 'x', 1, val_long); |
bd5635a1 RP |
381 | } |
382 | else | |
6fe90fc8 JK |
383 | switch (size) |
384 | { | |
385 | case 'b': | |
386 | case 'h': | |
387 | case 'w': | |
388 | case 'g': | |
389 | print_longest (stream, size, 1, val_long); | |
390 | break; | |
391 | default: | |
392 | error ("Undefined output size \"%c\".", size); | |
393 | } | |
bd5635a1 RP |
394 | break; |
395 | ||
396 | case 'd': | |
6fe90fc8 | 397 | print_longest (stream, 'd', 1, val_long); |
bd5635a1 RP |
398 | break; |
399 | ||
400 | case 'u': | |
6fe90fc8 | 401 | print_longest (stream, 'u', 0, val_long); |
bd5635a1 RP |
402 | break; |
403 | ||
404 | case 'o': | |
405 | if (val_long) | |
6fe90fc8 | 406 | print_longest (stream, 'o', 1, val_long); |
bd5635a1 RP |
407 | else |
408 | fprintf_filtered (stream, "0"); | |
409 | break; | |
410 | ||
411 | case 'a': | |
e1ce8aa5 | 412 | print_address (unpack_pointer (type, valaddr), stream); |
bd5635a1 RP |
413 | break; |
414 | ||
415 | case 'c': | |
c4668207 | 416 | value_print (value_from_longest (builtin_type_char, val_long), stream, 0, |
bd5635a1 RP |
417 | Val_pretty_default); |
418 | break; | |
419 | ||
420 | case 'f': | |
421 | if (len == sizeof (float)) | |
422 | type = builtin_type_float; | |
423 | else if (len == sizeof (double)) | |
424 | type = builtin_type_double; | |
425 | print_floating (valaddr, type, stream); | |
426 | break; | |
427 | ||
428 | case 0: | |
429 | abort (); | |
430 | ||
19b7c2a4 JK |
431 | case 't': |
432 | /* Binary; 't' stands for "two". */ | |
433 | { | |
434 | char bits[8*(sizeof val_long) + 1]; | |
435 | char *cp = bits; | |
436 | int width; | |
437 | ||
438 | if (!size) | |
439 | width = 8*(sizeof val_long); | |
440 | else | |
441 | switch (size) | |
442 | { | |
443 | case 'b': | |
444 | width = 8; | |
445 | break; | |
446 | case 'h': | |
447 | width = 16; | |
448 | break; | |
449 | case 'w': | |
450 | width = 32; | |
451 | break; | |
452 | case 'g': | |
453 | width = 64; | |
454 | break; | |
455 | default: | |
456 | error ("Undefined output size \"%c\".", size); | |
457 | } | |
458 | ||
459 | bits[width] = '\0'; | |
460 | while (width-- > 0) | |
461 | { | |
462 | bits[width] = (val_long & 1) ? '1' : '0'; | |
463 | val_long >>= 1; | |
464 | } | |
465 | if (!size) | |
466 | { | |
467 | while (*cp && *cp == '0') | |
468 | cp++; | |
469 | if (*cp == '\0') | |
470 | cp--; | |
471 | } | |
a8a69e63 | 472 | fprintf_filtered (stream, local_binary_format_prefix()); |
19b7c2a4 | 473 | fprintf_filtered (stream, cp); |
a8a69e63 | 474 | fprintf_filtered (stream, local_binary_format_suffix()); |
19b7c2a4 JK |
475 | } |
476 | break; | |
477 | ||
bd5635a1 RP |
478 | default: |
479 | error ("Undefined output format \"%c\".", format); | |
480 | } | |
481 | } | |
482 | ||
483 | /* Specify default address for `x' command. | |
484 | `info lines' uses this. */ | |
485 | ||
486 | void | |
487 | set_next_address (addr) | |
488 | CORE_ADDR addr; | |
489 | { | |
490 | next_address = addr; | |
491 | ||
492 | /* Make address available to the user as $_. */ | |
493 | set_internalvar (lookup_internalvar ("_"), | |
c4668207 JG |
494 | value_from_longest (lookup_pointer_type (builtin_type_void), |
495 | (LONGEST) addr)); | |
bd5635a1 RP |
496 | } |
497 | ||
36b9d39c JG |
498 | /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM, |
499 | after LEADIN. Print nothing if no symbolic name is found nearby. | |
bd5635a1 RP |
500 | DO_DEMANGLE controls whether to print a symbol in its native "raw" form, |
501 | or to interpret it as a possible C++ name and convert it back to source | |
2e4964ad FF |
502 | form. However note that DO_DEMANGLE can be overridden by the specific |
503 | settings of the demangle and asm_demangle variables. */ | |
bd5635a1 RP |
504 | |
505 | void | |
36b9d39c | 506 | print_address_symbolic (addr, stream, do_demangle, leadin) |
bd5635a1 | 507 | CORE_ADDR addr; |
199b2450 | 508 | GDB_FILE *stream; |
bd5635a1 | 509 | int do_demangle; |
36b9d39c | 510 | char *leadin; |
bd5635a1 | 511 | { |
f77ad505 | 512 | CORE_ADDR name_location; |
7586127f PS |
513 | register struct symbol *symbol; |
514 | char *name; | |
bd5635a1 | 515 | |
7586127f PS |
516 | /* First try to find the address in the symbol tables to find |
517 | static functions. If that doesn't succeed we try the minimal symbol | |
518 | vector for symbols in non-text space. | |
519 | FIXME: Should find a way to get at the static non-text symbols too. */ | |
bd5635a1 | 520 | |
7586127f PS |
521 | symbol = find_pc_function (addr); |
522 | if (symbol) | |
523 | { | |
524 | name_location = BLOCK_START (SYMBOL_BLOCK_VALUE (symbol)); | |
525 | if (do_demangle) | |
526 | name = SYMBOL_SOURCE_NAME (symbol); | |
527 | else | |
528 | name = SYMBOL_LINKAGE_NAME (symbol); | |
529 | } | |
530 | else | |
531 | { | |
532 | register struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (addr); | |
bd5635a1 | 533 | |
7586127f PS |
534 | /* If nothing comes out, don't print anything symbolic. */ |
535 | if (msymbol == NULL) | |
536 | return; | |
537 | name_location = SYMBOL_VALUE_ADDRESS (msymbol); | |
538 | if (do_demangle) | |
539 | name = SYMBOL_SOURCE_NAME (msymbol); | |
540 | else | |
541 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
542 | } | |
f77ad505 | 543 | |
7586127f | 544 | /* If the nearest symbol is too far away, don't print anything symbolic. */ |
f77ad505 FF |
545 | |
546 | /* For when CORE_ADDR is larger than unsigned int, we do math in | |
547 | CORE_ADDR. But when we detect unsigned wraparound in the | |
548 | CORE_ADDR math, we ignore this test and print the offset, | |
549 | because addr+max_symbolic_offset has wrapped through the end | |
550 | of the address space back to the beginning, giving bogus comparison. */ | |
551 | if (addr > name_location + max_symbolic_offset | |
552 | && name_location + max_symbolic_offset > name_location) | |
553 | return; | |
554 | ||
36b9d39c JG |
555 | fputs_filtered (leadin, stream); |
556 | fputs_filtered ("<", stream); | |
7586127f | 557 | fputs_filtered (name, stream); |
f77ad505 | 558 | if (addr != name_location) |
b7ccd8e0 PS |
559 | fprintf_filtered (stream, "+%u", (unsigned int)(addr - name_location)); |
560 | ||
561 | /* Append source filename and line number if desired. */ | |
562 | if (symbol && print_symbol_filename) | |
563 | { | |
633c8b0a DZ |
564 | struct symtab_and_line sal; |
565 | ||
566 | sal = find_pc_line (addr, 0); | |
b7ccd8e0 PS |
567 | if (sal.symtab) |
568 | fprintf_filtered (stream, " at %s:%d", sal.symtab->filename, sal.line); | |
569 | } | |
570 | fputs_filtered (">", stream); | |
bd5635a1 RP |
571 | } |
572 | ||
573 | /* Print address ADDR symbolically on STREAM. | |
574 | First print it as a number. Then perhaps print | |
575 | <SYMBOL + OFFSET> after the number. */ | |
576 | ||
577 | void | |
578 | print_address (addr, stream) | |
579 | CORE_ADDR addr; | |
199b2450 | 580 | GDB_FILE *stream; |
bd5635a1 | 581 | { |
b2ccb6a4 JK |
582 | #if 0 && defined (ADDR_BITS_REMOVE) |
583 | /* This is wrong for pointer to char, in which we do want to print | |
584 | the low bits. */ | |
f73b07c9 JK |
585 | fprintf_filtered (stream, local_hex_format(), |
586 | (unsigned long) ADDR_BITS_REMOVE(addr)); | |
8f869b45 | 587 | #else |
f73b07c9 | 588 | fprintf_filtered (stream, local_hex_format(), (unsigned long) addr); |
8f869b45 | 589 | #endif |
36b9d39c | 590 | print_address_symbolic (addr, stream, asm_demangle, " "); |
bd5635a1 RP |
591 | } |
592 | ||
593 | /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE | |
36b9d39c JG |
594 | controls whether to print the symbolic name "raw" or demangled. |
595 | Global setting "addressprint" controls whether to print hex address | |
596 | or not. */ | |
bd5635a1 RP |
597 | |
598 | void | |
599 | print_address_demangle (addr, stream, do_demangle) | |
600 | CORE_ADDR addr; | |
199b2450 | 601 | GDB_FILE *stream; |
bd5635a1 RP |
602 | int do_demangle; |
603 | { | |
36b9d39c JG |
604 | if (addr == 0) { |
605 | fprintf_filtered (stream, "0"); | |
606 | } else if (addressprint) { | |
f73b07c9 | 607 | fprintf_filtered (stream, local_hex_format(), (unsigned long) addr); |
36b9d39c JG |
608 | print_address_symbolic (addr, stream, do_demangle, " "); |
609 | } else { | |
610 | print_address_symbolic (addr, stream, do_demangle, ""); | |
611 | } | |
bd5635a1 | 612 | } |
bd5635a1 RP |
613 | \f |
614 | ||
199b2450 TL |
615 | /* These are the types that $__ will get after an examine command of one |
616 | of these sizes. */ | |
617 | ||
618 | static struct type *examine_b_type; | |
619 | static struct type *examine_h_type; | |
620 | static struct type *examine_w_type; | |
621 | static struct type *examine_g_type; | |
622 | ||
bd5635a1 | 623 | /* Examine data at address ADDR in format FMT. |
199b2450 | 624 | Fetch it from memory and print on gdb_stdout. */ |
bd5635a1 RP |
625 | |
626 | static void | |
627 | do_examine (fmt, addr) | |
628 | struct format_data fmt; | |
629 | CORE_ADDR addr; | |
630 | { | |
631 | register char format = 0; | |
632 | register char size; | |
633 | register int count = 1; | |
f73b07c9 | 634 | struct type *val_type = NULL; |
bd5635a1 RP |
635 | register int i; |
636 | register int maxelts; | |
637 | ||
638 | format = fmt.format; | |
639 | size = fmt.size; | |
640 | count = fmt.count; | |
641 | next_address = addr; | |
642 | ||
643 | /* String or instruction format implies fetch single bytes | |
644 | regardless of the specified size. */ | |
645 | if (format == 's' || format == 'i') | |
646 | size = 'b'; | |
647 | ||
648 | if (size == 'b') | |
199b2450 | 649 | val_type = examine_b_type; |
bd5635a1 | 650 | else if (size == 'h') |
199b2450 | 651 | val_type = examine_h_type; |
bd5635a1 | 652 | else if (size == 'w') |
199b2450 | 653 | val_type = examine_w_type; |
bd5635a1 | 654 | else if (size == 'g') |
199b2450 | 655 | val_type = examine_g_type; |
bd5635a1 RP |
656 | |
657 | maxelts = 8; | |
658 | if (size == 'w') | |
659 | maxelts = 4; | |
660 | if (size == 'g') | |
661 | maxelts = 2; | |
662 | if (format == 's' || format == 'i') | |
663 | maxelts = 1; | |
664 | ||
665 | /* Print as many objects as specified in COUNT, at most maxelts per line, | |
666 | with the address of the next one at the start of each line. */ | |
667 | ||
668 | while (count > 0) | |
669 | { | |
199b2450 | 670 | print_address (next_address, gdb_stdout); |
bd5635a1 RP |
671 | printf_filtered (":"); |
672 | for (i = maxelts; | |
673 | i > 0 && count > 0; | |
674 | i--, count--) | |
675 | { | |
676 | printf_filtered ("\t"); | |
677 | /* Note that print_formatted sets next_address for the next | |
678 | object. */ | |
679 | last_examine_address = next_address; | |
680 | last_examine_value = value_at (val_type, next_address); | |
681 | print_formatted (last_examine_value, format, size); | |
682 | } | |
683 | printf_filtered ("\n"); | |
199b2450 | 684 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
685 | } |
686 | } | |
687 | \f | |
688 | static void | |
689 | validate_format (fmt, cmdname) | |
690 | struct format_data fmt; | |
691 | char *cmdname; | |
692 | { | |
693 | if (fmt.size != 0) | |
694 | error ("Size letters are meaningless in \"%s\" command.", cmdname); | |
695 | if (fmt.count != 1) | |
696 | error ("Item count other than 1 is meaningless in \"%s\" command.", | |
697 | cmdname); | |
698 | if (fmt.format == 'i' || fmt.format == 's') | |
699 | error ("Format letter \"%c\" is meaningless in \"%s\" command.", | |
700 | fmt.format, cmdname); | |
701 | } | |
702 | ||
7dc15bb7 JG |
703 | /* Evaluate string EXP as an expression in the current language and |
704 | print the resulting value. EXP may contain a format specifier as the | |
705 | first argument ("/x myvar" for example, to print myvar in hex). | |
706 | */ | |
707 | ||
bd5635a1 RP |
708 | static void |
709 | print_command_1 (exp, inspect, voidprint) | |
710 | char *exp; | |
711 | int inspect; | |
712 | int voidprint; | |
713 | { | |
714 | struct expression *expr; | |
715 | register struct cleanup *old_chain = 0; | |
716 | register char format = 0; | |
717 | register value val; | |
718 | struct format_data fmt; | |
719 | int cleanup = 0; | |
720 | ||
721 | /* Pass inspect flag to the rest of the print routines in a global (sigh). */ | |
722 | inspect_it = inspect; | |
723 | ||
724 | if (exp && *exp == '/') | |
725 | { | |
726 | exp++; | |
727 | fmt = decode_format (&exp, last_format, 0); | |
728 | validate_format (fmt, "print"); | |
729 | last_format = format = fmt.format; | |
730 | } | |
731 | else | |
732 | { | |
733 | fmt.count = 1; | |
734 | fmt.format = 0; | |
735 | fmt.size = 0; | |
736 | } | |
737 | ||
738 | if (exp && *exp) | |
739 | { | |
3577f9b4 JK |
740 | extern int objectprint; |
741 | struct type *type; | |
c4668207 | 742 | expr = parse_expression (exp); |
bd5635a1 RP |
743 | old_chain = make_cleanup (free_current_contents, &expr); |
744 | cleanup = 1; | |
745 | val = evaluate_expression (expr); | |
3577f9b4 JK |
746 | |
747 | /* C++: figure out what type we actually want to print it as. */ | |
748 | type = VALUE_TYPE (val); | |
749 | ||
750 | if (objectprint | |
93fe4e33 | 751 | && ( TYPE_CODE (type) == TYPE_CODE_PTR |
3577f9b4 | 752 | || TYPE_CODE (type) == TYPE_CODE_REF) |
93fe4e33 JG |
753 | && ( TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT |
754 | || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_UNION)) | |
3577f9b4 JK |
755 | { |
756 | value v; | |
757 | ||
758 | v = value_from_vtable_info (val, TYPE_TARGET_TYPE (type)); | |
759 | if (v != 0) | |
760 | { | |
761 | val = v; | |
762 | type = VALUE_TYPE (val); | |
763 | } | |
764 | } | |
bd5635a1 RP |
765 | } |
766 | else | |
767 | val = access_value_history (0); | |
768 | ||
769 | if (voidprint || (val && VALUE_TYPE (val) && | |
770 | TYPE_CODE (VALUE_TYPE (val)) != TYPE_CODE_VOID)) | |
771 | { | |
772 | int histindex = record_latest_value (val); | |
773 | ||
774 | if (inspect) | |
199b2450 | 775 | printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"", exp, histindex); |
bd5635a1 RP |
776 | else |
777 | if (histindex >= 0) printf_filtered ("$%d = ", histindex); | |
778 | ||
779 | print_formatted (val, format, fmt.size); | |
780 | printf_filtered ("\n"); | |
781 | if (inspect) | |
199b2450 | 782 | printf_unfiltered("\") )\030"); |
bd5635a1 RP |
783 | } |
784 | ||
785 | if (cleanup) | |
786 | do_cleanups (old_chain); | |
787 | inspect_it = 0; /* Reset print routines to normal */ | |
788 | } | |
789 | ||
e1ce8aa5 | 790 | /* ARGSUSED */ |
bd5635a1 RP |
791 | static void |
792 | print_command (exp, from_tty) | |
793 | char *exp; | |
794 | int from_tty; | |
795 | { | |
796 | print_command_1 (exp, 0, 1); | |
797 | } | |
798 | ||
799 | /* Same as print, except in epoch, it gets its own window */ | |
e1ce8aa5 | 800 | /* ARGSUSED */ |
bd5635a1 RP |
801 | static void |
802 | inspect_command (exp, from_tty) | |
803 | char *exp; | |
804 | int from_tty; | |
805 | { | |
806 | extern int epoch_interface; | |
807 | ||
808 | print_command_1 (exp, epoch_interface, 1); | |
809 | } | |
810 | ||
811 | /* Same as print, except it doesn't print void results. */ | |
e1ce8aa5 | 812 | /* ARGSUSED */ |
bd5635a1 RP |
813 | static void |
814 | call_command (exp, from_tty) | |
815 | char *exp; | |
816 | int from_tty; | |
817 | { | |
818 | print_command_1 (exp, 0, 0); | |
819 | } | |
820 | ||
e1ce8aa5 | 821 | /* ARGSUSED */ |
bd5635a1 RP |
822 | static void |
823 | output_command (exp, from_tty) | |
824 | char *exp; | |
825 | int from_tty; | |
826 | { | |
827 | struct expression *expr; | |
828 | register struct cleanup *old_chain; | |
829 | register char format = 0; | |
830 | register value val; | |
831 | struct format_data fmt; | |
832 | ||
833 | if (exp && *exp == '/') | |
834 | { | |
835 | exp++; | |
836 | fmt = decode_format (&exp, 0, 0); | |
4d38b5a8 | 837 | validate_format (fmt, "output"); |
bd5635a1 RP |
838 | format = fmt.format; |
839 | } | |
840 | ||
c4668207 | 841 | expr = parse_expression (exp); |
bd5635a1 RP |
842 | old_chain = make_cleanup (free_current_contents, &expr); |
843 | ||
844 | val = evaluate_expression (expr); | |
845 | ||
846 | print_formatted (val, format, fmt.size); | |
847 | ||
848 | do_cleanups (old_chain); | |
849 | } | |
850 | ||
e1ce8aa5 | 851 | /* ARGSUSED */ |
bd5635a1 RP |
852 | static void |
853 | set_command (exp, from_tty) | |
854 | char *exp; | |
855 | int from_tty; | |
856 | { | |
c4668207 | 857 | struct expression *expr = parse_expression (exp); |
bd5635a1 RP |
858 | register struct cleanup *old_chain |
859 | = make_cleanup (free_current_contents, &expr); | |
860 | evaluate_expression (expr); | |
861 | do_cleanups (old_chain); | |
862 | } | |
863 | ||
e1ce8aa5 | 864 | /* ARGSUSED */ |
bd5635a1 RP |
865 | static void |
866 | address_info (exp, from_tty) | |
867 | char *exp; | |
868 | int from_tty; | |
869 | { | |
870 | register struct symbol *sym; | |
93fe4e33 | 871 | register struct minimal_symbol *msymbol; |
e1ce8aa5 | 872 | register long val; |
4d38b5a8 | 873 | register long basereg; |
bd5635a1 RP |
874 | int is_a_field_of_this; /* C++: lookup_symbol sets this to nonzero |
875 | if exp is a field of `this'. */ | |
876 | ||
877 | if (exp == 0) | |
878 | error ("Argument required."); | |
879 | ||
880 | sym = lookup_symbol (exp, get_selected_block (), VAR_NAMESPACE, | |
881 | &is_a_field_of_this, (struct symtab **)NULL); | |
2e4964ad | 882 | if (sym == NULL) |
bd5635a1 | 883 | { |
bd5635a1 RP |
884 | if (is_a_field_of_this) |
885 | { | |
199b2450 | 886 | printf_unfiltered ("Symbol \"%s\" is a field of the local class variable `this'\n", exp); |
bd5635a1 RP |
887 | return; |
888 | } | |
889 | ||
93fe4e33 | 890 | msymbol = lookup_minimal_symbol (exp, (struct objfile *) NULL); |
bd5635a1 | 891 | |
93fe4e33 | 892 | if (msymbol != NULL) |
199b2450 | 893 | printf_unfiltered ("Symbol \"%s\" is at %s in a file compiled without debugging.\n", |
f73b07c9 JK |
894 | exp, |
895 | local_hex_string((unsigned long) SYMBOL_VALUE_ADDRESS (msymbol))); | |
bd5635a1 RP |
896 | else |
897 | error ("No symbol \"%s\" in current context.", exp); | |
898 | return; | |
899 | } | |
900 | ||
199b2450 | 901 | printf_unfiltered ("Symbol \"%s\" is ", SYMBOL_NAME (sym)); |
bd5635a1 | 902 | val = SYMBOL_VALUE (sym); |
4d38b5a8 | 903 | basereg = SYMBOL_BASEREG (sym); |
bd5635a1 RP |
904 | |
905 | switch (SYMBOL_CLASS (sym)) | |
906 | { | |
907 | case LOC_CONST: | |
908 | case LOC_CONST_BYTES: | |
199b2450 | 909 | printf_unfiltered ("constant"); |
bd5635a1 RP |
910 | break; |
911 | ||
912 | case LOC_LABEL: | |
199b2450 | 913 | printf_unfiltered ("a label at address %s", |
f73b07c9 | 914 | local_hex_string((unsigned long) SYMBOL_VALUE_ADDRESS (sym))); |
bd5635a1 RP |
915 | break; |
916 | ||
917 | case LOC_REGISTER: | |
199b2450 | 918 | printf_unfiltered ("a variable in register %s", reg_names[val]); |
bd5635a1 RP |
919 | break; |
920 | ||
921 | case LOC_STATIC: | |
199b2450 | 922 | printf_unfiltered ("static storage at address %s", |
f73b07c9 | 923 | local_hex_string((unsigned long) SYMBOL_VALUE_ADDRESS (sym))); |
bd5635a1 RP |
924 | break; |
925 | ||
926 | case LOC_REGPARM: | |
199b2450 | 927 | printf_unfiltered ("an argument in register %s", reg_names[val]); |
bd5635a1 | 928 | break; |
5afa2040 | 929 | |
a1c8d76e | 930 | case LOC_REGPARM_ADDR: |
199b2450 | 931 | printf_unfiltered ("address of an argument in register %s", reg_names[val]); |
a1c8d76e JK |
932 | break; |
933 | ||
bd5635a1 | 934 | case LOC_ARG: |
199b2450 | 935 | printf_unfiltered ("an argument at offset %ld", val); |
bd5635a1 RP |
936 | break; |
937 | ||
938 | case LOC_LOCAL_ARG: | |
199b2450 | 939 | printf_unfiltered ("an argument at frame offset %ld", val); |
bd5635a1 RP |
940 | break; |
941 | ||
942 | case LOC_LOCAL: | |
199b2450 | 943 | printf_unfiltered ("a local variable at frame offset %ld", val); |
bd5635a1 RP |
944 | break; |
945 | ||
946 | case LOC_REF_ARG: | |
199b2450 | 947 | printf_unfiltered ("a reference argument at offset %ld", val); |
bd5635a1 RP |
948 | break; |
949 | ||
a1c8d76e | 950 | case LOC_BASEREG: |
199b2450 | 951 | printf_unfiltered ("a variable at offset %ld from register %s", |
a1c8d76e JK |
952 | val, reg_names[basereg]); |
953 | break; | |
954 | ||
955 | case LOC_BASEREG_ARG: | |
199b2450 | 956 | printf_unfiltered ("an argument at offset %ld from register %s", |
a1c8d76e JK |
957 | val, reg_names[basereg]); |
958 | break; | |
959 | ||
bd5635a1 | 960 | case LOC_TYPEDEF: |
199b2450 | 961 | printf_unfiltered ("a typedef"); |
bd5635a1 RP |
962 | break; |
963 | ||
964 | case LOC_BLOCK: | |
199b2450 | 965 | printf_unfiltered ("a function at address %s", |
f73b07c9 | 966 | local_hex_string((unsigned long) BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); |
bd5635a1 RP |
967 | break; |
968 | ||
31258e4f JK |
969 | case LOC_OPTIMIZED_OUT: |
970 | printf_filtered ("optimized out"); | |
971 | break; | |
972 | ||
bd5635a1 | 973 | default: |
199b2450 | 974 | printf_unfiltered ("of unknown (botched) type"); |
bd5635a1 RP |
975 | break; |
976 | } | |
199b2450 | 977 | printf_unfiltered (".\n"); |
bd5635a1 RP |
978 | } |
979 | \f | |
980 | static void | |
981 | x_command (exp, from_tty) | |
982 | char *exp; | |
983 | int from_tty; | |
984 | { | |
985 | struct expression *expr; | |
986 | struct format_data fmt; | |
987 | struct cleanup *old_chain; | |
988 | struct value *val; | |
989 | ||
990 | fmt.format = last_format; | |
991 | fmt.size = last_size; | |
992 | fmt.count = 1; | |
993 | ||
994 | if (exp && *exp == '/') | |
995 | { | |
996 | exp++; | |
997 | fmt = decode_format (&exp, last_format, last_size); | |
bd5635a1 RP |
998 | } |
999 | ||
1000 | /* If we have an expression, evaluate it and use it as the address. */ | |
1001 | ||
1002 | if (exp != 0 && *exp != 0) | |
1003 | { | |
c4668207 | 1004 | expr = parse_expression (exp); |
bd5635a1 RP |
1005 | /* Cause expression not to be there any more |
1006 | if this command is repeated with Newline. | |
1007 | But don't clobber a user-defined command's definition. */ | |
1008 | if (from_tty) | |
1009 | *exp = 0; | |
1010 | old_chain = make_cleanup (free_current_contents, &expr); | |
1011 | val = evaluate_expression (expr); | |
3577f9b4 JK |
1012 | if (TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_REF) |
1013 | val = value_ind (val); | |
bd5635a1 RP |
1014 | /* In rvalue contexts, such as this, functions are coerced into |
1015 | pointers to functions. This makes "x/i main" work. */ | |
1016 | if (/* last_format == 'i' | |
1017 | && */ TYPE_CODE (VALUE_TYPE (val)) == TYPE_CODE_FUNC | |
1018 | && VALUE_LVAL (val) == lval_memory) | |
1019 | next_address = VALUE_ADDRESS (val); | |
1020 | else | |
e1ce8aa5 | 1021 | next_address = value_as_pointer (val); |
bd5635a1 RP |
1022 | do_cleanups (old_chain); |
1023 | } | |
1024 | ||
1025 | do_examine (fmt, next_address); | |
1026 | ||
4d38b5a8 JG |
1027 | /* If the examine succeeds, we remember its size and format for next time. */ |
1028 | last_size = fmt.size; | |
1029 | last_format = fmt.format; | |
1030 | ||
bd5635a1 RP |
1031 | /* Set a couple of internal variables if appropriate. */ |
1032 | if (last_examine_value) | |
1033 | { | |
c4668207 JG |
1034 | /* Make last address examined available to the user as $_. Use |
1035 | the correct pointer type. */ | |
bd5635a1 | 1036 | set_internalvar (lookup_internalvar ("_"), |
c4668207 JG |
1037 | value_from_longest ( |
1038 | lookup_pointer_type (VALUE_TYPE (last_examine_value)), | |
1039 | (LONGEST) last_examine_address)); | |
bd5635a1 RP |
1040 | |
1041 | /* Make contents of last address examined available to the user as $__.*/ | |
1042 | set_internalvar (lookup_internalvar ("__"), last_examine_value); | |
1043 | } | |
1044 | } | |
bd5635a1 | 1045 | |
bd5635a1 | 1046 | \f |
bd5635a1 RP |
1047 | /* Add an expression to the auto-display chain. |
1048 | Specify the expression. */ | |
1049 | ||
1050 | static void | |
1051 | display_command (exp, from_tty) | |
1052 | char *exp; | |
1053 | int from_tty; | |
1054 | { | |
1055 | struct format_data fmt; | |
1056 | register struct expression *expr; | |
1057 | register struct display *new; | |
1058 | ||
1059 | if (exp == 0) | |
1060 | { | |
1061 | do_displays (); | |
1062 | return; | |
1063 | } | |
1064 | ||
1065 | if (*exp == '/') | |
1066 | { | |
1067 | exp++; | |
1068 | fmt = decode_format (&exp, 0, 0); | |
1069 | if (fmt.size && fmt.format == 0) | |
1070 | fmt.format = 'x'; | |
1071 | if (fmt.format == 'i' || fmt.format == 's') | |
1072 | fmt.size = 'b'; | |
1073 | } | |
1074 | else | |
1075 | { | |
1076 | fmt.format = 0; | |
1077 | fmt.size = 0; | |
1078 | fmt.count = 0; | |
1079 | } | |
1080 | ||
1081 | innermost_block = 0; | |
c4668207 | 1082 | expr = parse_expression (exp); |
bd5635a1 RP |
1083 | |
1084 | new = (struct display *) xmalloc (sizeof (struct display)); | |
1085 | ||
1086 | new->exp = expr; | |
1087 | new->block = innermost_block; | |
1088 | new->next = display_chain; | |
1089 | new->number = ++display_number; | |
1090 | new->format = fmt; | |
1091 | new->status = enabled; | |
1092 | display_chain = new; | |
1093 | ||
1094 | if (from_tty && target_has_execution) | |
1095 | do_one_display (new); | |
1096 | ||
1097 | dont_repeat (); | |
1098 | } | |
1099 | ||
1100 | static void | |
1101 | free_display (d) | |
1102 | struct display *d; | |
1103 | { | |
4d38b5a8 JG |
1104 | free ((PTR)d->exp); |
1105 | free ((PTR)d); | |
bd5635a1 RP |
1106 | } |
1107 | ||
1108 | /* Clear out the display_chain. | |
1109 | Done when new symtabs are loaded, since this invalidates | |
1110 | the types stored in many expressions. */ | |
1111 | ||
1112 | void | |
1113 | clear_displays () | |
1114 | { | |
1115 | register struct display *d; | |
1116 | ||
a8a69e63 | 1117 | while ((d = display_chain) != NULL) |
bd5635a1 | 1118 | { |
4d38b5a8 | 1119 | free ((PTR)d->exp); |
bd5635a1 | 1120 | display_chain = d->next; |
4d38b5a8 | 1121 | free ((PTR)d); |
bd5635a1 RP |
1122 | } |
1123 | } | |
1124 | ||
1125 | /* Delete the auto-display number NUM. */ | |
1126 | ||
93fe4e33 | 1127 | static void |
bd5635a1 RP |
1128 | delete_display (num) |
1129 | int num; | |
1130 | { | |
1131 | register struct display *d1, *d; | |
1132 | ||
1133 | if (!display_chain) | |
1134 | error ("No display number %d.", num); | |
1135 | ||
1136 | if (display_chain->number == num) | |
1137 | { | |
1138 | d1 = display_chain; | |
1139 | display_chain = d1->next; | |
1140 | free_display (d1); | |
1141 | } | |
1142 | else | |
1143 | for (d = display_chain; ; d = d->next) | |
1144 | { | |
1145 | if (d->next == 0) | |
1146 | error ("No display number %d.", num); | |
1147 | if (d->next->number == num) | |
1148 | { | |
1149 | d1 = d->next; | |
1150 | d->next = d1->next; | |
1151 | free_display (d1); | |
1152 | break; | |
1153 | } | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | /* Delete some values from the auto-display chain. | |
1158 | Specify the element numbers. */ | |
1159 | ||
1160 | static void | |
4d38b5a8 | 1161 | undisplay_command (args, from_tty) |
bd5635a1 | 1162 | char *args; |
4d38b5a8 | 1163 | int from_tty; |
bd5635a1 RP |
1164 | { |
1165 | register char *p = args; | |
1166 | register char *p1; | |
1167 | register int num; | |
1168 | ||
1169 | if (args == 0) | |
1170 | { | |
1171 | if (query ("Delete all auto-display expressions? ")) | |
1172 | clear_displays (); | |
1173 | dont_repeat (); | |
1174 | return; | |
1175 | } | |
1176 | ||
1177 | while (*p) | |
1178 | { | |
1179 | p1 = p; | |
1180 | while (*p1 >= '0' && *p1 <= '9') p1++; | |
1181 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1182 | error ("Arguments must be display numbers."); | |
1183 | ||
1184 | num = atoi (p); | |
1185 | ||
1186 | delete_display (num); | |
1187 | ||
1188 | p = p1; | |
1189 | while (*p == ' ' || *p == '\t') p++; | |
1190 | } | |
1191 | dont_repeat (); | |
1192 | } | |
1193 | ||
1194 | /* Display a single auto-display. | |
1195 | Do nothing if the display cannot be printed in the current context, | |
1196 | or if the display is disabled. */ | |
1197 | ||
1198 | static void | |
1199 | do_one_display (d) | |
1200 | struct display *d; | |
1201 | { | |
1202 | int within_current_scope; | |
1203 | ||
1204 | if (d->status == disabled) | |
1205 | return; | |
1206 | ||
1207 | if (d->block) | |
1208 | within_current_scope = contained_in (get_selected_block (), d->block); | |
1209 | else | |
1210 | within_current_scope = 1; | |
1211 | if (!within_current_scope) | |
1212 | return; | |
1213 | ||
1214 | current_display_number = d->number; | |
1215 | ||
1216 | printf_filtered ("%d: ", d->number); | |
1217 | if (d->format.size) | |
1218 | { | |
1219 | CORE_ADDR addr; | |
1220 | ||
1221 | printf_filtered ("x/"); | |
1222 | if (d->format.count != 1) | |
1223 | printf_filtered ("%d", d->format.count); | |
1224 | printf_filtered ("%c", d->format.format); | |
1225 | if (d->format.format != 'i' && d->format.format != 's') | |
1226 | printf_filtered ("%c", d->format.size); | |
1227 | printf_filtered (" "); | |
199b2450 | 1228 | print_expression (d->exp, gdb_stdout); |
bd5635a1 RP |
1229 | if (d->format.count != 1) |
1230 | printf_filtered ("\n"); | |
1231 | else | |
1232 | printf_filtered (" "); | |
1233 | ||
e1ce8aa5 | 1234 | addr = value_as_pointer (evaluate_expression (d->exp)); |
bd5635a1 RP |
1235 | if (d->format.format == 'i') |
1236 | addr = ADDR_BITS_REMOVE (addr); | |
1237 | ||
1238 | do_examine (d->format, addr); | |
1239 | } | |
1240 | else | |
1241 | { | |
1242 | if (d->format.format) | |
1243 | printf_filtered ("/%c ", d->format.format); | |
199b2450 | 1244 | print_expression (d->exp, gdb_stdout); |
bd5635a1 RP |
1245 | printf_filtered (" = "); |
1246 | print_formatted (evaluate_expression (d->exp), | |
1247 | d->format.format, d->format.size); | |
1248 | printf_filtered ("\n"); | |
1249 | } | |
1250 | ||
199b2450 | 1251 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
1252 | current_display_number = -1; |
1253 | } | |
1254 | ||
1255 | /* Display all of the values on the auto-display chain which can be | |
1256 | evaluated in the current scope. */ | |
1257 | ||
1258 | void | |
1259 | do_displays () | |
1260 | { | |
1261 | register struct display *d; | |
1262 | ||
1263 | for (d = display_chain; d; d = d->next) | |
1264 | do_one_display (d); | |
1265 | } | |
1266 | ||
1267 | /* Delete the auto-display which we were in the process of displaying. | |
1268 | This is done when there is an error or a signal. */ | |
1269 | ||
1270 | void | |
1271 | disable_display (num) | |
1272 | int num; | |
1273 | { | |
1274 | register struct display *d; | |
1275 | ||
1276 | for (d = display_chain; d; d = d->next) | |
1277 | if (d->number == num) | |
1278 | { | |
1279 | d->status = disabled; | |
1280 | return; | |
1281 | } | |
199b2450 | 1282 | printf_unfiltered ("No display number %d.\n", num); |
bd5635a1 RP |
1283 | } |
1284 | ||
1285 | void | |
1286 | disable_current_display () | |
1287 | { | |
1288 | if (current_display_number >= 0) | |
1289 | { | |
1290 | disable_display (current_display_number); | |
199b2450 | 1291 | fprintf_unfiltered (gdb_stderr, "Disabling display %d to avoid infinite recursion.\n", |
bd5635a1 RP |
1292 | current_display_number); |
1293 | } | |
1294 | current_display_number = -1; | |
1295 | } | |
1296 | ||
1297 | static void | |
4d38b5a8 JG |
1298 | display_info (ignore, from_tty) |
1299 | char *ignore; | |
1300 | int from_tty; | |
bd5635a1 RP |
1301 | { |
1302 | register struct display *d; | |
1303 | ||
1304 | if (!display_chain) | |
199b2450 | 1305 | printf_unfiltered ("There are no auto-display expressions now.\n"); |
bd5635a1 RP |
1306 | else |
1307 | printf_filtered ("Auto-display expressions now in effect:\n\ | |
1308 | Num Enb Expression\n"); | |
1309 | ||
1310 | for (d = display_chain; d; d = d->next) | |
1311 | { | |
1312 | printf_filtered ("%d: %c ", d->number, "ny"[(int)d->status]); | |
1313 | if (d->format.size) | |
1314 | printf_filtered ("/%d%c%c ", d->format.count, d->format.size, | |
1315 | d->format.format); | |
1316 | else if (d->format.format) | |
1317 | printf_filtered ("/%c ", d->format.format); | |
199b2450 | 1318 | print_expression (d->exp, gdb_stdout); |
bd5635a1 RP |
1319 | if (d->block && !contained_in (get_selected_block (), d->block)) |
1320 | printf_filtered (" (cannot be evaluated in the current context)"); | |
1321 | printf_filtered ("\n"); | |
199b2450 | 1322 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
1323 | } |
1324 | } | |
1325 | ||
93fe4e33 | 1326 | static void |
4d38b5a8 | 1327 | enable_display (args, from_tty) |
bd5635a1 | 1328 | char *args; |
4d38b5a8 | 1329 | int from_tty; |
bd5635a1 RP |
1330 | { |
1331 | register char *p = args; | |
1332 | register char *p1; | |
1333 | register int num; | |
1334 | register struct display *d; | |
1335 | ||
1336 | if (p == 0) | |
1337 | { | |
1338 | for (d = display_chain; d; d = d->next) | |
1339 | d->status = enabled; | |
1340 | } | |
1341 | else | |
1342 | while (*p) | |
1343 | { | |
1344 | p1 = p; | |
1345 | while (*p1 >= '0' && *p1 <= '9') | |
1346 | p1++; | |
1347 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1348 | error ("Arguments must be display numbers."); | |
1349 | ||
1350 | num = atoi (p); | |
1351 | ||
1352 | for (d = display_chain; d; d = d->next) | |
1353 | if (d->number == num) | |
1354 | { | |
1355 | d->status = enabled; | |
1356 | goto win; | |
1357 | } | |
199b2450 | 1358 | printf_unfiltered ("No display number %d.\n", num); |
bd5635a1 RP |
1359 | win: |
1360 | p = p1; | |
1361 | while (*p == ' ' || *p == '\t') | |
1362 | p++; | |
1363 | } | |
1364 | } | |
1365 | ||
e1ce8aa5 | 1366 | /* ARGSUSED */ |
93fe4e33 | 1367 | static void |
bd5635a1 RP |
1368 | disable_display_command (args, from_tty) |
1369 | char *args; | |
1370 | int from_tty; | |
1371 | { | |
1372 | register char *p = args; | |
1373 | register char *p1; | |
1374 | register struct display *d; | |
1375 | ||
1376 | if (p == 0) | |
1377 | { | |
1378 | for (d = display_chain; d; d = d->next) | |
1379 | d->status = disabled; | |
1380 | } | |
1381 | else | |
1382 | while (*p) | |
1383 | { | |
1384 | p1 = p; | |
1385 | while (*p1 >= '0' && *p1 <= '9') | |
1386 | p1++; | |
1387 | if (*p1 && *p1 != ' ' && *p1 != '\t') | |
1388 | error ("Arguments must be display numbers."); | |
1389 | ||
1390 | disable_display (atoi (p)); | |
1391 | ||
1392 | p = p1; | |
1393 | while (*p == ' ' || *p == '\t') | |
1394 | p++; | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | \f | |
1399 | /* Print the value in stack frame FRAME of a variable | |
1400 | specified by a struct symbol. */ | |
1401 | ||
1402 | void | |
1403 | print_variable_value (var, frame, stream) | |
1404 | struct symbol *var; | |
1405 | FRAME frame; | |
199b2450 | 1406 | GDB_FILE *stream; |
bd5635a1 RP |
1407 | { |
1408 | value val = read_var_value (var, frame); | |
1409 | value_print (val, stream, 0, Val_pretty_default); | |
1410 | } | |
1411 | ||
1412 | /* Print the arguments of a stack frame, given the function FUNC | |
1413 | running in that frame (as a symbol), the info on the frame, | |
1414 | and the number of args according to the stack frame (or -1 if unknown). */ | |
1415 | ||
1416 | /* References here and elsewhere to "number of args according to the | |
1417 | stack frame" appear in all cases to refer to "number of ints of args | |
1418 | according to the stack frame". At least for VAX, i386, isi. */ | |
1419 | ||
1420 | void | |
1421 | print_frame_args (func, fi, num, stream) | |
1422 | struct symbol *func; | |
1423 | struct frame_info *fi; | |
1424 | int num; | |
199b2450 | 1425 | GDB_FILE *stream; |
bd5635a1 | 1426 | { |
f73b07c9 | 1427 | struct block *b = NULL; |
bd5635a1 RP |
1428 | int nsyms = 0; |
1429 | int first = 1; | |
1430 | register int i; | |
1431 | register struct symbol *sym; | |
1432 | register value val; | |
1433 | /* Offset of next stack argument beyond the one we have seen that is | |
1434 | at the highest offset. | |
1435 | -1 if we haven't come to a stack argument yet. */ | |
e1ce8aa5 | 1436 | long highest_offset = -1; |
bd5635a1 RP |
1437 | int arg_size; |
1438 | /* Number of ints of arguments that we have printed so far. */ | |
1439 | int args_printed = 0; | |
1440 | ||
1441 | if (func) | |
1442 | { | |
1443 | b = SYMBOL_BLOCK_VALUE (func); | |
1444 | nsyms = BLOCK_NSYMS (b); | |
1445 | } | |
1446 | ||
1447 | for (i = 0; i < nsyms; i++) | |
1448 | { | |
1449 | QUIT; | |
1450 | sym = BLOCK_SYM (b, i); | |
1451 | ||
c4668207 JG |
1452 | /* Keep track of the highest stack argument offset seen, and |
1453 | skip over any kinds of symbols we don't care about. */ | |
bd5635a1 RP |
1454 | |
1455 | switch (SYMBOL_CLASS (sym)) { | |
bd5635a1 RP |
1456 | case LOC_ARG: |
1457 | case LOC_REF_ARG: | |
1458 | { | |
e1ce8aa5 | 1459 | long current_offset = SYMBOL_VALUE (sym); |
bd5635a1 RP |
1460 | |
1461 | arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym)); | |
1462 | ||
1463 | /* Compute address of next argument by adding the size of | |
1464 | this argument and rounding to an int boundary. */ | |
1465 | current_offset | |
1466 | = ((current_offset + arg_size + sizeof (int) - 1) | |
1467 | & ~(sizeof (int) - 1)); | |
1468 | ||
1469 | /* If this is the highest offset seen yet, set highest_offset. */ | |
1470 | if (highest_offset == -1 | |
1471 | || (current_offset > highest_offset)) | |
1472 | highest_offset = current_offset; | |
1473 | ||
1474 | /* Add the number of ints we're about to print to args_printed. */ | |
1475 | args_printed += (arg_size + sizeof (int) - 1) / sizeof (int); | |
1476 | } | |
1477 | ||
c4668207 JG |
1478 | /* We care about types of symbols, but don't need to keep track of |
1479 | stack offsets in them. */ | |
1480 | case LOC_REGPARM: | |
5afa2040 | 1481 | case LOC_REGPARM_ADDR: |
c4668207 | 1482 | case LOC_LOCAL_ARG: |
a1c8d76e | 1483 | case LOC_BASEREG_ARG: |
bd5635a1 | 1484 | break; |
c4668207 JG |
1485 | |
1486 | /* Other types of symbols we just skip over. */ | |
1487 | default: | |
1488 | continue; | |
bd5635a1 RP |
1489 | } |
1490 | ||
31258e4f JK |
1491 | /* We have to look up the symbol because arguments can have |
1492 | two entries (one a parameter, one a local) and the one we | |
1493 | want is the local, which lookup_symbol will find for us. | |
1494 | This includes gcc1 (not gcc2) on the sparc when passing a | |
1495 | small structure and gcc2 when the argument type is float | |
1496 | and it is passed as a double and converted to float by | |
1497 | the prologue (in the latter case the type of the LOC_ARG | |
1498 | symbol is double and the type of the LOC_LOCAL symbol is | |
6fe90fc8 JK |
1499 | float). There are also LOC_ARG/LOC_REGISTER pairs which |
1500 | are not combined in symbol-reading. */ | |
31258e4f | 1501 | /* But if the parameter name is null, don't try it. |
a8a69e63 FF |
1502 | Null parameter names occur on the RS/6000, for traceback tables. |
1503 | FIXME, should we even print them? */ | |
1504 | ||
1505 | if (*SYMBOL_NAME (sym)) | |
31258e4f JK |
1506 | sym = lookup_symbol |
1507 | (SYMBOL_NAME (sym), | |
1508 | b, VAR_NAMESPACE, (int *)NULL, (struct symtab **)NULL); | |
c4668207 | 1509 | |
bd5635a1 RP |
1510 | /* Print the current arg. */ |
1511 | if (! first) | |
1512 | fprintf_filtered (stream, ", "); | |
1513 | wrap_here (" "); | |
31258e4f JK |
1514 | fprintf_symbol_filtered (stream, SYMBOL_SOURCE_NAME (sym), |
1515 | SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI); | |
bd5635a1 RP |
1516 | fputs_filtered ("=", stream); |
1517 | ||
1518 | /* Avoid value_print because it will deref ref parameters. We just | |
1519 | want to print their addresses. Print ??? for args whose address | |
d11c44f1 JG |
1520 | we do not know. We pass 2 as "recurse" to val_print because our |
1521 | standard indentation here is 4 spaces, and val_print indents | |
1522 | 2 for each recurse. */ | |
bd5635a1 RP |
1523 | val = read_var_value (sym, FRAME_INFO_ID (fi)); |
1524 | if (val) | |
1525 | val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), VALUE_ADDRESS (val), | |
d11c44f1 | 1526 | stream, 0, 0, 2, Val_no_prettyprint); |
bd5635a1 RP |
1527 | else |
1528 | fputs_filtered ("???", stream); | |
1529 | first = 0; | |
1530 | } | |
1531 | ||
1532 | /* Don't print nameless args in situations where we don't know | |
1533 | enough about the stack to find them. */ | |
1534 | if (num != -1) | |
1535 | { | |
e1ce8aa5 | 1536 | long start; |
bd5635a1 RP |
1537 | |
1538 | if (highest_offset == -1) | |
1539 | start = FRAME_ARGS_SKIP; | |
1540 | else | |
1541 | start = highest_offset; | |
1542 | ||
7dc15bb7 JG |
1543 | print_frame_nameless_args (fi, start, num - args_printed, |
1544 | first, stream); | |
bd5635a1 RP |
1545 | } |
1546 | } | |
1547 | ||
1548 | /* Print nameless args on STREAM. | |
7dc15bb7 | 1549 | FI is the frameinfo for this frame, START is the offset |
bd5635a1 RP |
1550 | of the first nameless arg, and NUM is the number of nameless args to |
1551 | print. FIRST is nonzero if this is the first argument (not just | |
1552 | the first nameless arg). */ | |
1553 | static void | |
7dc15bb7 JG |
1554 | print_frame_nameless_args (fi, start, num, first, stream) |
1555 | struct frame_info *fi; | |
e1ce8aa5 | 1556 | long start; |
bd5635a1 RP |
1557 | int num; |
1558 | int first; | |
199b2450 | 1559 | GDB_FILE *stream; |
bd5635a1 RP |
1560 | { |
1561 | int i; | |
7dc15bb7 JG |
1562 | CORE_ADDR argsaddr; |
1563 | long arg_value; | |
1564 | ||
bd5635a1 RP |
1565 | for (i = 0; i < num; i++) |
1566 | { | |
1567 | QUIT; | |
7dc15bb7 JG |
1568 | #ifdef NAMELESS_ARG_VALUE |
1569 | NAMELESS_ARG_VALUE (fi, start, &arg_value); | |
1570 | #else | |
1571 | argsaddr = FRAME_ARGS_ADDRESS (fi); | |
1572 | if (!argsaddr) | |
1573 | return; | |
1574 | ||
1575 | arg_value = read_memory_integer (argsaddr + start, sizeof (int)); | |
1576 | #endif | |
1577 | ||
bd5635a1 RP |
1578 | if (!first) |
1579 | fprintf_filtered (stream, ", "); | |
7dc15bb7 JG |
1580 | |
1581 | #ifdef PRINT_NAMELESS_INTEGER | |
1582 | PRINT_NAMELESS_INTEGER (stream, arg_value); | |
bd5635a1 | 1583 | #else |
7dc15bb7 JG |
1584 | #ifdef PRINT_TYPELESS_INTEGER |
1585 | PRINT_TYPELESS_INTEGER (stream, builtin_type_int, (LONGEST) arg_value); | |
1586 | #else | |
1587 | fprintf_filtered (stream, "%d", arg_value); | |
1588 | #endif /* PRINT_TYPELESS_INTEGER */ | |
1589 | #endif /* PRINT_NAMELESS_INTEGER */ | |
bd5635a1 RP |
1590 | first = 0; |
1591 | start += sizeof (int); | |
1592 | } | |
1593 | } | |
1594 | \f | |
e1ce8aa5 | 1595 | /* ARGSUSED */ |
bd5635a1 RP |
1596 | static void |
1597 | printf_command (arg, from_tty) | |
1598 | char *arg; | |
1599 | int from_tty; | |
1600 | { | |
1601 | register char *f; | |
1602 | register char *s = arg; | |
1603 | char *string; | |
1604 | value *val_args; | |
199b2450 TL |
1605 | char *substrings; |
1606 | char *current_substring; | |
bd5635a1 RP |
1607 | int nargs = 0; |
1608 | int allocated_args = 20; | |
199b2450 | 1609 | struct cleanup *old_cleanups; |
bd5635a1 RP |
1610 | |
1611 | val_args = (value *) xmalloc (allocated_args * sizeof (value)); | |
199b2450 | 1612 | old_cleanups = make_cleanup (free_current_contents, &val_args); |
bd5635a1 RP |
1613 | |
1614 | if (s == 0) | |
1615 | error_no_arg ("format-control string and values to print"); | |
1616 | ||
1617 | /* Skip white space before format string */ | |
1618 | while (*s == ' ' || *s == '\t') s++; | |
1619 | ||
1620 | /* A format string should follow, enveloped in double quotes */ | |
1621 | if (*s++ != '"') | |
1622 | error ("Bad format string, missing '\"'."); | |
1623 | ||
1624 | /* Parse the format-control string and copy it into the string STRING, | |
1625 | processing some kinds of escape sequence. */ | |
1626 | ||
1627 | f = string = (char *) alloca (strlen (s) + 1); | |
199b2450 | 1628 | |
bd5635a1 RP |
1629 | while (*s != '"') |
1630 | { | |
1631 | int c = *s++; | |
1632 | switch (c) | |
1633 | { | |
1634 | case '\0': | |
1635 | error ("Bad format string, non-terminated '\"'."); | |
bd5635a1 RP |
1636 | |
1637 | case '\\': | |
1638 | switch (c = *s++) | |
1639 | { | |
1640 | case '\\': | |
1641 | *f++ = '\\'; | |
1642 | break; | |
1643 | case 'n': | |
1644 | *f++ = '\n'; | |
1645 | break; | |
1646 | case 't': | |
1647 | *f++ = '\t'; | |
1648 | break; | |
1649 | case 'r': | |
1650 | *f++ = '\r'; | |
1651 | break; | |
1652 | case '"': | |
1653 | *f++ = '"'; | |
1654 | break; | |
1655 | default: | |
1656 | /* ??? TODO: handle other escape sequences */ | |
1657 | error ("Unrecognized \\ escape character in format string."); | |
1658 | } | |
1659 | break; | |
1660 | ||
1661 | default: | |
1662 | *f++ = c; | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* Skip over " and following space and comma. */ | |
1667 | s++; | |
1668 | *f++ = '\0'; | |
1669 | while (*s == ' ' || *s == '\t') s++; | |
1670 | ||
1671 | if (*s != ',' && *s != 0) | |
1672 | error ("Invalid argument syntax"); | |
1673 | ||
1674 | if (*s == ',') s++; | |
1675 | while (*s == ' ' || *s == '\t') s++; | |
1676 | ||
199b2450 TL |
1677 | /* Need extra space for the '\0's. Doubling the size is sufficient. */ |
1678 | substrings = alloca (strlen (string) * 2); | |
1679 | current_substring = substrings; | |
1680 | ||
bd5635a1 RP |
1681 | { |
1682 | /* Now scan the string for %-specs and see what kinds of args they want. | |
199b2450 | 1683 | argclass[I] classifies the %-specs so we can give vprintf_unfiltered something |
bd5635a1 | 1684 | of the right size. */ |
199b2450 TL |
1685 | |
1686 | enum argclass {no_arg, int_arg, string_arg, double_arg, long_long_arg}; | |
bd5635a1 | 1687 | enum argclass *argclass; |
199b2450 TL |
1688 | enum argclass this_argclass; |
1689 | char *last_arg; | |
bd5635a1 | 1690 | int nargs_wanted; |
bd5635a1 RP |
1691 | int lcount; |
1692 | int i; | |
19bdd57f | 1693 | |
bd5635a1 RP |
1694 | argclass = (enum argclass *) alloca (strlen (s) * sizeof *argclass); |
1695 | nargs_wanted = 0; | |
1696 | f = string; | |
199b2450 | 1697 | last_arg = string; |
bd5635a1 RP |
1698 | while (*f) |
1699 | if (*f++ == '%') | |
1700 | { | |
1701 | lcount = 0; | |
1702 | while (strchr ("0123456789.hlL-+ #", *f)) | |
1703 | { | |
1704 | if (*f == 'l' || *f == 'L') | |
1705 | lcount++; | |
1706 | f++; | |
1707 | } | |
199b2450 TL |
1708 | switch (*f) |
1709 | { | |
1710 | case 's': | |
1711 | this_argclass = string_arg; | |
1712 | break; | |
1713 | ||
1714 | case 'e': | |
1715 | case 'f': | |
1716 | case 'g': | |
1717 | this_argclass = double_arg; | |
1718 | break; | |
1719 | ||
1720 | case '*': | |
1721 | error ("`*' not supported for precision or width in printf"); | |
1722 | ||
1723 | case 'n': | |
1724 | error ("Format specifier `n' not supported in printf"); | |
1725 | ||
1726 | case '%': | |
1727 | this_argclass = no_arg; | |
1728 | break; | |
1729 | ||
1730 | default: | |
1731 | if (lcount > 1) | |
1732 | this_argclass = long_long_arg; | |
1733 | else | |
1734 | this_argclass = int_arg; | |
1735 | break; | |
1736 | } | |
bd5635a1 | 1737 | f++; |
199b2450 TL |
1738 | if (this_argclass != no_arg) |
1739 | { | |
1740 | strncpy (current_substring, last_arg, f - last_arg); | |
1741 | current_substring += f - last_arg; | |
1742 | *current_substring++ = '\0'; | |
1743 | last_arg = f; | |
1744 | argclass[nargs_wanted++] = this_argclass; | |
1745 | } | |
bd5635a1 | 1746 | } |
8acf767c | 1747 | |
bd5635a1 RP |
1748 | /* Now, parse all arguments and evaluate them. |
1749 | Store the VALUEs in VAL_ARGS. */ | |
8acf767c | 1750 | |
bd5635a1 RP |
1751 | while (*s != '\0') |
1752 | { | |
1753 | char *s1; | |
1754 | if (nargs == allocated_args) | |
93fe4e33 | 1755 | val_args = (value *) xrealloc ((char *) val_args, |
bd5635a1 RP |
1756 | (allocated_args *= 2) |
1757 | * sizeof (value)); | |
1758 | s1 = s; | |
1759 | val_args[nargs] = parse_to_comma_and_eval (&s1); | |
1760 | ||
1761 | /* If format string wants a float, unchecked-convert the value to | |
1762 | floating point of the same size */ | |
1763 | ||
1764 | if (argclass[nargs] == double_arg) | |
1765 | { | |
1766 | if (TYPE_LENGTH (VALUE_TYPE (val_args[nargs])) == sizeof (float)) | |
1767 | VALUE_TYPE (val_args[nargs]) = builtin_type_float; | |
1768 | if (TYPE_LENGTH (VALUE_TYPE (val_args[nargs])) == sizeof (double)) | |
1769 | VALUE_TYPE (val_args[nargs]) = builtin_type_double; | |
1770 | } | |
1771 | nargs++; | |
1772 | s = s1; | |
1773 | if (*s == ',') | |
1774 | s++; | |
1775 | } | |
1776 | ||
1777 | if (nargs != nargs_wanted) | |
1778 | error ("Wrong number of arguments for specified format-string"); | |
19bdd57f | 1779 | |
199b2450 TL |
1780 | /* FIXME: We should be using vprintf_filtered, but as long as it |
1781 | has an arbitrary limit that is unacceptable. Correct fix is | |
1782 | for vprintf_filtered to scan down the format string so it knows | |
1783 | how big a buffer it needs (perhaps by putting a vasprintf (see | |
1784 | GNU C library) in libiberty). | |
1785 | ||
1786 | But for now, just force out any pending output, so at least the output | |
1787 | appears in the correct order. */ | |
1788 | wrap_here ((char *)NULL); | |
19bdd57f | 1789 | |
199b2450 TL |
1790 | /* Now actually print them. */ |
1791 | current_substring = substrings; | |
bd5635a1 RP |
1792 | for (i = 0; i < nargs; i++) |
1793 | { | |
199b2450 | 1794 | switch (argclass[i]) |
bd5635a1 | 1795 | { |
199b2450 TL |
1796 | case string_arg: |
1797 | { | |
1798 | char *str; | |
1799 | CORE_ADDR tem; | |
1800 | int j; | |
1801 | tem = value_as_pointer (val_args[i]); | |
1802 | ||
1803 | /* This is a %s argument. Find the length of the string. */ | |
1804 | for (j = 0; ; j++) | |
1805 | { | |
1806 | char c; | |
1807 | QUIT; | |
1808 | read_memory (tem + j, &c, 1); | |
1809 | if (c == 0) | |
1810 | break; | |
1811 | } | |
1812 | ||
1813 | /* Copy the string contents into a string inside GDB. */ | |
1814 | str = (char *) alloca (j + 1); | |
1815 | read_memory (tem, str, j); | |
1816 | str[j] = 0; | |
1817 | ||
1818 | /* Don't use printf_filtered because of arbitrary limit. */ | |
1819 | printf_unfiltered (current_substring, str); | |
1820 | } | |
1821 | break; | |
1822 | case double_arg: | |
1823 | { | |
1824 | double val = value_as_double (val_args[i]); | |
1825 | /* Don't use printf_filtered because of arbitrary limit. */ | |
1826 | printf_unfiltered (current_substring, val); | |
1827 | break; | |
1828 | } | |
1829 | case long_long_arg: | |
1830 | #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG) | |
bd5635a1 | 1831 | { |
19bdd57f | 1832 | long long val = value_as_long (val_args[i]); |
199b2450 TL |
1833 | /* Don't use printf_filtered because of arbitrary limit. */ |
1834 | printf_unfiltered (current_substring, val); | |
1835 | break; | |
bd5635a1 | 1836 | } |
199b2450 TL |
1837 | #else |
1838 | error ("long long not supported in printf"); | |
bd5635a1 | 1839 | #endif |
199b2450 | 1840 | case int_arg: |
bd5635a1 | 1841 | { |
199b2450 | 1842 | /* FIXME: there should be separate int_arg and long_arg. */ |
19bdd57f | 1843 | long val = value_as_long (val_args[i]); |
199b2450 TL |
1844 | /* Don't use printf_filtered because of arbitrary limit. */ |
1845 | printf_unfiltered (current_substring, val); | |
1846 | break; | |
bd5635a1 | 1847 | } |
199b2450 TL |
1848 | default: |
1849 | error ("internal error in printf_command"); | |
1850 | } | |
1851 | /* Skip to the next substring. */ | |
1852 | current_substring += strlen (current_substring) + 1; | |
bd5635a1 | 1853 | } |
199b2450 TL |
1854 | /* Print the portion of the format string after the last argument. */ |
1855 | /* It would be OK to use printf_filtered here. */ | |
1856 | printf (last_arg); | |
bd5635a1 | 1857 | } |
199b2450 | 1858 | do_cleanups (old_cleanups); |
bd5635a1 RP |
1859 | } |
1860 | \f | |
bd5635a1 RP |
1861 | /* Dump a specified section of assembly code. With no command line |
1862 | arguments, this command will dump the assembly code for the | |
1863 | function surrounding the pc value in the selected frame. With one | |
1864 | argument, it will dump the assembly code surrounding that pc value. | |
1865 | Two arguments are interpeted as bounds within which to dump | |
1866 | assembly. */ | |
1867 | ||
e1ce8aa5 | 1868 | /* ARGSUSED */ |
bd5635a1 RP |
1869 | static void |
1870 | disassemble_command (arg, from_tty) | |
1871 | char *arg; | |
1872 | int from_tty; | |
1873 | { | |
1874 | CORE_ADDR low, high; | |
f1ed4330 | 1875 | char *name; |
bd5635a1 RP |
1876 | CORE_ADDR pc; |
1877 | char *space_index; | |
1878 | ||
f1ed4330 | 1879 | name = NULL; |
bd5635a1 RP |
1880 | if (!arg) |
1881 | { | |
1882 | if (!selected_frame) | |
1883 | error ("No frame selected.\n"); | |
1884 | ||
1885 | pc = get_frame_pc (selected_frame); | |
f1ed4330 JK |
1886 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
1887 | error ("No function contains program counter for selected frame.\n"); | |
bd5635a1 RP |
1888 | } |
1889 | else if (!(space_index = (char *) strchr (arg, ' '))) | |
1890 | { | |
1891 | /* One argument. */ | |
1892 | pc = parse_and_eval_address (arg); | |
f1ed4330 JK |
1893 | if (find_pc_partial_function (pc, &name, &low, &high) == 0) |
1894 | error ("No function contains specified address.\n"); | |
bd5635a1 RP |
1895 | } |
1896 | else | |
1897 | { | |
1898 | /* Two arguments. */ | |
1899 | *space_index = '\0'; | |
1900 | low = parse_and_eval_address (arg); | |
1901 | high = parse_and_eval_address (space_index + 1); | |
1902 | } | |
1903 | ||
1904 | printf_filtered ("Dump of assembler code "); | |
f1ed4330 | 1905 | if (name != NULL) |
bd5635a1 | 1906 | { |
bd5635a1 RP |
1907 | printf_filtered ("for function %s:\n", name); |
1908 | } | |
1909 | else | |
f77ad505 | 1910 | { |
f73b07c9 JK |
1911 | printf_filtered ("from %s ", local_hex_string((unsigned long) low)); |
1912 | printf_filtered ("to %s:\n", local_hex_string((unsigned long) high)); | |
f77ad505 | 1913 | } |
bd5635a1 RP |
1914 | |
1915 | /* Dump the specified range. */ | |
1916 | for (pc = low; pc < high; ) | |
1917 | { | |
1918 | QUIT; | |
199b2450 | 1919 | print_address (pc, gdb_stdout); |
bd5635a1 | 1920 | printf_filtered (":\t"); |
199b2450 | 1921 | pc += print_insn (pc, gdb_stdout); |
bd5635a1 RP |
1922 | printf_filtered ("\n"); |
1923 | } | |
1924 | printf_filtered ("End of assembler dump.\n"); | |
199b2450 | 1925 | gdb_flush (gdb_stdout); |
bd5635a1 RP |
1926 | } |
1927 | ||
1928 | \f | |
1929 | void | |
1930 | _initialize_printcmd () | |
1931 | { | |
1932 | current_display_number = -1; | |
1933 | ||
1934 | add_info ("address", address_info, | |
1935 | "Describe where variable VAR is stored."); | |
1936 | ||
1937 | add_com ("x", class_vars, x_command, | |
1938 | "Examine memory: x/FMT ADDRESS.\n\ | |
1939 | ADDRESS is an expression for the memory address to examine.\n\ | |
1940 | FMT is a repeat count followed by a format letter and a size letter.\n\ | |
1941 | Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\ | |
31258e4f | 1942 | t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\ |
bd5635a1 | 1943 | Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\ |
bd5635a1 RP |
1944 | The specified number of objects of the specified size are printed\n\ |
1945 | according to the format.\n\n\ | |
1946 | Defaults for format and size letters are those previously used.\n\ | |
1947 | Default count is 1. Default address is following last thing printed\n\ | |
1948 | with this command or \"print\"."); | |
1949 | ||
1950 | add_com ("disassemble", class_vars, disassemble_command, | |
1951 | "Disassemble a specified section of memory.\n\ | |
1952 | Default is the function surrounding the pc of the selected frame.\n\ | |
1953 | With a single argument, the function surrounding that address is dumped.\n\ | |
1954 | Two arguments are taken as a range of memory to dump."); | |
1955 | ||
bd5635a1 RP |
1956 | #if 0 |
1957 | add_com ("whereis", class_vars, whereis_command, | |
1958 | "Print line number and file of definition of variable."); | |
1959 | #endif | |
1960 | ||
1961 | add_info ("display", display_info, | |
1962 | "Expressions to display when program stops, with code numbers."); | |
1963 | ||
1964 | add_cmd ("undisplay", class_vars, undisplay_command, | |
1965 | "Cancel some expressions to be displayed when program stops.\n\ | |
1966 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1967 | No argument means cancel all automatic-display expressions.\n\ | |
1968 | \"delete display\" has the same effect as this command.\n\ | |
1969 | Do \"info display\" to see current list of code numbers.", | |
1970 | &cmdlist); | |
1971 | ||
1972 | add_com ("display", class_vars, display_command, | |
1973 | "Print value of expression EXP each time the program stops.\n\ | |
1974 | /FMT may be used before EXP as in the \"print\" command.\n\ | |
1975 | /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\ | |
1976 | as in the \"x\" command, and then EXP is used to get the address to examine\n\ | |
1977 | and examining is done as in the \"x\" command.\n\n\ | |
1978 | With no argument, display all currently requested auto-display expressions.\n\ | |
1979 | Use \"undisplay\" to cancel display requests previously made."); | |
1980 | ||
1981 | add_cmd ("display", class_vars, enable_display, | |
1982 | "Enable some expressions to be displayed when program stops.\n\ | |
1983 | Arguments are the code numbers of the expressions to resume displaying.\n\ | |
1984 | No argument means enable all automatic-display expressions.\n\ | |
1985 | Do \"info display\" to see current list of code numbers.", &enablelist); | |
1986 | ||
1987 | add_cmd ("display", class_vars, disable_display_command, | |
1988 | "Disable some expressions to be displayed when program stops.\n\ | |
1989 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1990 | No argument means disable all automatic-display expressions.\n\ | |
1991 | Do \"info display\" to see current list of code numbers.", &disablelist); | |
1992 | ||
1993 | add_cmd ("display", class_vars, undisplay_command, | |
1994 | "Cancel some expressions to be displayed when program stops.\n\ | |
1995 | Arguments are the code numbers of the expressions to stop displaying.\n\ | |
1996 | No argument means cancel all automatic-display expressions.\n\ | |
1997 | Do \"info display\" to see current list of code numbers.", &deletelist); | |
1998 | ||
1999 | add_com ("printf", class_vars, printf_command, | |
2000 | "printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
2001 | This is useful for formatted output in user-defined commands."); | |
2002 | add_com ("output", class_vars, output_command, | |
2003 | "Like \"print\" but don't put in value history and don't print newline.\n\ | |
2004 | This is useful in user-defined commands."); | |
2005 | ||
2006 | add_prefix_cmd ("set", class_vars, set_command, | |
45fe3db4 FF |
2007 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
2008 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2009 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2010 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2011 | variable in the program being debugged. EXP is any valid expression.\n\ | |
bd5635a1 RP |
2012 | Use \"set variable\" for variables with names identical to set subcommands.\n\ |
2013 | \nWith a subcommand, this command modifies parts of the gdb environment.\n\ | |
2014 | You can see these environment settings with the \"show\" command.", | |
2015 | &setlist, "set ", 1, &cmdlist); | |
2016 | ||
2017 | /* "call" is the same as "set", but handy for dbx users to call fns. */ | |
2018 | add_com ("call", class_vars, call_command, | |
6fe90fc8 | 2019 | "Call a function in the program.\n\ |
c4668207 JG |
2020 | The argument is the function name and arguments, in the notation of the\n\ |
2021 | current working language. The result is printed and saved in the value\n\ | |
2022 | history, if it is not void."); | |
bd5635a1 RP |
2023 | |
2024 | add_cmd ("variable", class_vars, set_command, | |
45fe3db4 FF |
2025 | "Evaluate expression EXP and assign result to variable VAR, using assignment\n\ |
2026 | syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\ | |
2027 | example). VAR may be a debugger \"convenience\" variable (names starting\n\ | |
2028 | with $), a register (a few standard names starting with $), or an actual\n\ | |
2029 | variable in the program being debugged. EXP is any valid expression.\n\ | |
bd5635a1 RP |
2030 | This may usually be abbreviated to simply \"set\".", |
2031 | &setlist); | |
2032 | ||
2033 | add_com ("print", class_vars, print_command, | |
2034 | concat ("Print value of expression EXP.\n\ | |
2035 | Variables accessible are those of the lexical environment of the selected\n\ | |
2036 | stack frame, plus all those whose scope is global or an entire file.\n\ | |
2037 | \n\ | |
2038 | $NUM gets previous value number NUM. $ and $$ are the last two values.\n\ | |
2039 | $$NUM refers to NUM'th value back from the last one.\n\ | |
2040 | Names starting with $ refer to registers (with the values they would have\n\ | |
2041 | if the program were to return to the stack frame now selected, restoring\n\ | |
2042 | all registers saved by frames farther in) or else to debugger\n\ | |
2043 | \"convenience\" variables (any such name not a known register).\n\ | |
2044 | Use assignment expressions to give values to convenience variables.\n", | |
2045 | "\n\ | |
2046 | {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\ | |
2047 | @ is a binary operator for treating consecutive data objects\n\ | |
2048 | anywhere in memory as an array. FOO@NUM gives an array whose first\n\ | |
2049 | element is FOO, whose second element is stored in the space following\n\ | |
2050 | where FOO is stored, etc. FOO must be an expression whose value\n\ | |
2051 | resides in memory.\n", | |
2052 | "\n\ | |
2053 | EXP may be preceded with /FMT, where FMT is a format letter\n\ | |
7d9884b9 | 2054 | but no count or size letter (see \"x\" command).", NULL)); |
bd5635a1 RP |
2055 | add_com_alias ("p", "print", class_vars, 1); |
2056 | ||
2057 | add_com ("inspect", class_vars, inspect_command, | |
2058 | "Same as \"print\" command, except that if you are running in the epoch\n\ | |
2059 | environment, the value is printed in its own window."); | |
f77ad505 FF |
2060 | |
2061 | add_show_from_set ( | |
2062 | add_set_cmd ("max-symbolic-offset", no_class, var_uinteger, | |
2063 | (char *)&max_symbolic_offset, | |
2064 | "Set the largest offset that will be printed in <symbol+1234> form.", | |
2065 | &setprintlist), | |
2066 | &showprintlist); | |
b7ccd8e0 PS |
2067 | add_show_from_set ( |
2068 | add_set_cmd ("symbol-filename", no_class, var_boolean, | |
2069 | (char *)&print_symbol_filename, | |
2070 | "Set printing of source filename and line number with <symbol>.", | |
2071 | &setprintlist), | |
2072 | &showprintlist); | |
199b2450 TL |
2073 | |
2074 | examine_b_type = init_type (TYPE_CODE_INT, 1, 0, NULL, NULL); | |
2075 | examine_h_type = init_type (TYPE_CODE_INT, 2, 0, NULL, NULL); | |
2076 | examine_w_type = init_type (TYPE_CODE_INT, 4, 0, NULL, NULL); | |
2077 | examine_g_type = init_type (TYPE_CODE_INT, 8, 0, NULL, NULL); | |
bd5635a1 | 2078 | } |