]>
Commit | Line | Data |
---|---|---|
c906108c SS |
1 | /* General utility routines for GDB, the GNU debugger. |
2 | Copyright 1986, 89, 90, 91, 92, 95, 96, 1998 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
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. | |
c906108c | 15 | |
c5aa993b JM |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include <ctype.h> | |
23 | #include "gdb_string.h" | |
c2c6d25f | 24 | #include "event-top.h" |
c906108c SS |
25 | |
26 | #ifdef HAVE_CURSES_H | |
27 | #include <curses.h> | |
28 | #endif | |
29 | #ifdef HAVE_TERM_H | |
30 | #include <term.h> | |
31 | #endif | |
32 | ||
33 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ | |
34 | #ifdef reg | |
35 | #undef reg | |
36 | #endif | |
37 | ||
38 | #include "signals.h" | |
39 | #include "gdbcmd.h" | |
40 | #include "serial.h" | |
41 | #include "bfd.h" | |
42 | #include "target.h" | |
43 | #include "demangle.h" | |
44 | #include "expression.h" | |
45 | #include "language.h" | |
46 | #include "annotate.h" | |
47 | ||
48 | #include <readline/readline.h> | |
49 | ||
917317f4 JM |
50 | #undef XMALLOC |
51 | #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE))) | |
52 | ||
c906108c SS |
53 | /* readline defines this. */ |
54 | #undef savestring | |
55 | ||
56 | void (*error_begin_hook) PARAMS ((void)); | |
57 | ||
2acceee2 JM |
58 | /* Holds the last error message issued by gdb */ |
59 | ||
60 | static GDB_FILE *gdb_lasterr; | |
61 | ||
c906108c SS |
62 | /* Prototypes for local functions */ |
63 | ||
64 | static void vfprintf_maybe_filtered PARAMS ((GDB_FILE *, const char *, | |
65 | va_list, int)); | |
66 | ||
67 | static void fputs_maybe_filtered PARAMS ((const char *, GDB_FILE *, int)); | |
68 | ||
69 | #if defined (USE_MMALLOC) && !defined (NO_MMCHECK) | |
70 | static void malloc_botch PARAMS ((void)); | |
71 | #endif | |
72 | ||
c906108c SS |
73 | static void |
74 | prompt_for_continue PARAMS ((void)); | |
75 | ||
c5aa993b | 76 | static void |
c906108c SS |
77 | set_width_command PARAMS ((char *, int, struct cmd_list_element *)); |
78 | ||
79 | static void | |
80 | set_width PARAMS ((void)); | |
81 | ||
c906108c | 82 | #ifndef GDB_FILE_ISATTY |
c5aa993b | 83 | #define GDB_FILE_ISATTY(GDB_FILE_PTR) (gdb_file_isatty(GDB_FILE_PTR)) |
c906108c SS |
84 | #endif |
85 | ||
86 | /* Chain of cleanup actions established with make_cleanup, | |
87 | to be executed if an error happens. */ | |
88 | ||
c5aa993b JM |
89 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
90 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
91 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
92 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 JM |
93 | /* cleaned up on each error from within an execution command */ |
94 | static struct cleanup *exec_error_cleanup_chain; | |
43ff13b4 JM |
95 | |
96 | /* Pointer to what is left to do for an execution command after the | |
97 | target stops. Used only in asynchronous mode, by targets that | |
98 | support async execution. The finish and until commands use it. So | |
99 | does the target extended-remote command. */ | |
100 | struct continuation *cmd_continuation; | |
c2d11a7d | 101 | struct continuation *intermediate_continuation; |
c906108c SS |
102 | |
103 | /* Nonzero if we have job control. */ | |
104 | ||
105 | int job_control; | |
106 | ||
107 | /* Nonzero means a quit has been requested. */ | |
108 | ||
109 | int quit_flag; | |
110 | ||
111 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
112 | than waiting until QUIT is executed. Be careful in setting this; | |
113 | code which executes with immediate_quit set has to be very careful | |
114 | about being able to deal with being interrupted at any time. It is | |
115 | almost always better to use QUIT; the only exception I can think of | |
116 | is being able to quit out of a system call (using EINTR loses if | |
117 | the SIGINT happens between the previous QUIT and the system call). | |
118 | To immediately quit in the case in which a SIGINT happens between | |
119 | the previous QUIT and setting immediate_quit (desirable anytime we | |
120 | expect to block), call QUIT after setting immediate_quit. */ | |
121 | ||
122 | int immediate_quit; | |
123 | ||
124 | /* Nonzero means that encoded C++ names should be printed out in their | |
125 | C++ form rather than raw. */ | |
126 | ||
127 | int demangle = 1; | |
128 | ||
129 | /* Nonzero means that encoded C++ names should be printed out in their | |
130 | C++ form even in assembler language displays. If this is set, but | |
131 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
132 | ||
133 | int asm_demangle = 0; | |
134 | ||
135 | /* Nonzero means that strings with character values >0x7F should be printed | |
136 | as octal escapes. Zero means just print the value (e.g. it's an | |
137 | international character, and the terminal or window can cope.) */ | |
138 | ||
139 | int sevenbit_strings = 0; | |
140 | ||
141 | /* String to be printed before error messages, if any. */ | |
142 | ||
143 | char *error_pre_print; | |
144 | ||
145 | /* String to be printed before quit messages, if any. */ | |
146 | ||
147 | char *quit_pre_print; | |
148 | ||
149 | /* String to be printed before warning messages, if any. */ | |
150 | ||
151 | char *warning_pre_print = "\nwarning: "; | |
152 | ||
153 | int pagination_enabled = 1; | |
c906108c | 154 | \f |
c5aa993b | 155 | |
c906108c SS |
156 | /* Add a new cleanup to the cleanup_chain, |
157 | and return the previous chain pointer | |
158 | to be passed later to do_cleanups or discard_cleanups. | |
159 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
160 | ||
161 | struct cleanup * | |
162 | make_cleanup (function, arg) | |
163 | void (*function) PARAMS ((PTR)); | |
164 | PTR arg; | |
165 | { | |
c5aa993b | 166 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
167 | } |
168 | ||
169 | struct cleanup * | |
170 | make_final_cleanup (function, arg) | |
171 | void (*function) PARAMS ((PTR)); | |
172 | PTR arg; | |
173 | { | |
c5aa993b | 174 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 175 | } |
7a292a7a | 176 | |
c906108c SS |
177 | struct cleanup * |
178 | make_run_cleanup (function, arg) | |
179 | void (*function) PARAMS ((PTR)); | |
180 | PTR arg; | |
181 | { | |
c5aa993b | 182 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 183 | } |
7a292a7a | 184 | |
43ff13b4 JM |
185 | struct cleanup * |
186 | make_exec_cleanup (function, arg) | |
187 | void (*function) PARAMS ((PTR)); | |
188 | PTR arg; | |
189 | { | |
c5aa993b | 190 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
191 | } |
192 | ||
6426a772 JM |
193 | struct cleanup * |
194 | make_exec_error_cleanup (function, arg) | |
195 | void (*function) PARAMS ((PTR)); | |
196 | PTR arg; | |
197 | { | |
198 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
199 | } | |
200 | ||
7a292a7a SS |
201 | static void |
202 | do_freeargv (arg) | |
203 | void *arg; | |
204 | { | |
c5aa993b | 205 | freeargv ((char **) arg); |
7a292a7a SS |
206 | } |
207 | ||
208 | struct cleanup * | |
209 | make_cleanup_freeargv (arg) | |
210 | char **arg; | |
211 | { | |
212 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
213 | } | |
214 | ||
11cf8741 JM |
215 | static void |
216 | do_gdb_file_delete (void *arg) | |
217 | { | |
218 | gdb_file_delete (arg); | |
219 | } | |
220 | ||
221 | struct cleanup * | |
222 | make_cleanup_gdb_file_delete (struct gdb_file *arg) | |
223 | { | |
224 | return make_my_cleanup (&cleanup_chain, do_gdb_file_delete, arg); | |
225 | } | |
226 | ||
c906108c SS |
227 | struct cleanup * |
228 | make_my_cleanup (pmy_chain, function, arg) | |
229 | struct cleanup **pmy_chain; | |
230 | void (*function) PARAMS ((PTR)); | |
231 | PTR arg; | |
232 | { | |
233 | register struct cleanup *new | |
c5aa993b | 234 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
c906108c SS |
235 | register struct cleanup *old_chain = *pmy_chain; |
236 | ||
237 | new->next = *pmy_chain; | |
238 | new->function = function; | |
239 | new->arg = arg; | |
240 | *pmy_chain = new; | |
241 | ||
242 | return old_chain; | |
243 | } | |
244 | ||
245 | /* Discard cleanups and do the actions they describe | |
246 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
247 | ||
248 | void | |
249 | do_cleanups (old_chain) | |
250 | register struct cleanup *old_chain; | |
251 | { | |
c5aa993b | 252 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
253 | } |
254 | ||
255 | void | |
256 | do_final_cleanups (old_chain) | |
257 | register struct cleanup *old_chain; | |
258 | { | |
c5aa993b | 259 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
260 | } |
261 | ||
262 | void | |
263 | do_run_cleanups (old_chain) | |
264 | register struct cleanup *old_chain; | |
265 | { | |
c5aa993b | 266 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
267 | } |
268 | ||
43ff13b4 JM |
269 | void |
270 | do_exec_cleanups (old_chain) | |
271 | register struct cleanup *old_chain; | |
272 | { | |
c5aa993b | 273 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
274 | } |
275 | ||
6426a772 JM |
276 | void |
277 | do_exec_error_cleanups (old_chain) | |
278 | register struct cleanup *old_chain; | |
279 | { | |
280 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
281 | } | |
282 | ||
c906108c SS |
283 | void |
284 | do_my_cleanups (pmy_chain, old_chain) | |
285 | register struct cleanup **pmy_chain; | |
286 | register struct cleanup *old_chain; | |
287 | { | |
288 | register struct cleanup *ptr; | |
289 | while ((ptr = *pmy_chain) != old_chain) | |
290 | { | |
291 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
292 | (*ptr->function) (ptr->arg); | |
293 | free (ptr); | |
294 | } | |
295 | } | |
296 | ||
297 | /* Discard cleanups, not doing the actions they describe, | |
298 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
299 | ||
300 | void | |
301 | discard_cleanups (old_chain) | |
302 | register struct cleanup *old_chain; | |
303 | { | |
c5aa993b | 304 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
305 | } |
306 | ||
307 | void | |
308 | discard_final_cleanups (old_chain) | |
309 | register struct cleanup *old_chain; | |
310 | { | |
c5aa993b | 311 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
312 | } |
313 | ||
6426a772 JM |
314 | void |
315 | discard_exec_error_cleanups (old_chain) | |
316 | register struct cleanup *old_chain; | |
317 | { | |
318 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
319 | } | |
320 | ||
c906108c SS |
321 | void |
322 | discard_my_cleanups (pmy_chain, old_chain) | |
323 | register struct cleanup **pmy_chain; | |
324 | register struct cleanup *old_chain; | |
325 | { | |
326 | register struct cleanup *ptr; | |
327 | while ((ptr = *pmy_chain) != old_chain) | |
328 | { | |
329 | *pmy_chain = ptr->next; | |
c5aa993b | 330 | free ((PTR) ptr); |
c906108c SS |
331 | } |
332 | } | |
333 | ||
334 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
335 | struct cleanup * | |
336 | save_cleanups () | |
337 | { | |
c5aa993b | 338 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
339 | } |
340 | ||
341 | struct cleanup * | |
342 | save_final_cleanups () | |
343 | { | |
c5aa993b | 344 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
345 | } |
346 | ||
347 | struct cleanup * | |
348 | save_my_cleanups (pmy_chain) | |
c5aa993b | 349 | struct cleanup **pmy_chain; |
c906108c SS |
350 | { |
351 | struct cleanup *old_chain = *pmy_chain; | |
352 | ||
353 | *pmy_chain = 0; | |
354 | return old_chain; | |
355 | } | |
356 | ||
357 | /* Restore the cleanup chain from a previously saved chain. */ | |
358 | void | |
359 | restore_cleanups (chain) | |
360 | struct cleanup *chain; | |
361 | { | |
c5aa993b | 362 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
363 | } |
364 | ||
365 | void | |
366 | restore_final_cleanups (chain) | |
367 | struct cleanup *chain; | |
368 | { | |
c5aa993b | 369 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
370 | } |
371 | ||
372 | void | |
373 | restore_my_cleanups (pmy_chain, chain) | |
374 | struct cleanup **pmy_chain; | |
375 | struct cleanup *chain; | |
376 | { | |
377 | *pmy_chain = chain; | |
378 | } | |
379 | ||
380 | /* This function is useful for cleanups. | |
381 | Do | |
382 | ||
c5aa993b JM |
383 | foo = xmalloc (...); |
384 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
385 | |
386 | to arrange to free the object thus allocated. */ | |
387 | ||
388 | void | |
389 | free_current_contents (location) | |
390 | char **location; | |
391 | { | |
392 | free (*location); | |
393 | } | |
394 | ||
395 | /* Provide a known function that does nothing, to use as a base for | |
396 | for a possibly long chain of cleanups. This is useful where we | |
397 | use the cleanup chain for handling normal cleanups as well as dealing | |
398 | with cleanups that need to be done as a result of a call to error(). | |
399 | In such cases, we may not be certain where the first cleanup is, unless | |
400 | we have a do-nothing one to always use as the base. */ | |
401 | ||
402 | /* ARGSUSED */ | |
403 | void | |
404 | null_cleanup (arg) | |
c5aa993b | 405 | PTR arg; |
c906108c SS |
406 | { |
407 | } | |
408 | ||
43ff13b4 | 409 | /* Add a continuation to the continuation list, the gloabl list |
c2d11a7d | 410 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 JM |
411 | void |
412 | add_continuation (continuation_hook, arg_list) | |
c5aa993b JM |
413 | void (*continuation_hook) PARAMS ((struct continuation_arg *)); |
414 | struct continuation_arg *arg_list; | |
43ff13b4 | 415 | { |
c5aa993b | 416 | struct continuation *continuation_ptr; |
43ff13b4 | 417 | |
c5aa993b JM |
418 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); |
419 | continuation_ptr->continuation_hook = continuation_hook; | |
420 | continuation_ptr->arg_list = arg_list; | |
421 | continuation_ptr->next = cmd_continuation; | |
422 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
423 | } |
424 | ||
425 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
426 | continuations. There is a problem though. In some cases new |
427 | continuations may be added while we are in the middle of this | |
428 | loop. If this happens they will be added in the front, and done | |
429 | before we have a chance of exhausting those that were already | |
430 | there. We need to then save the beginning of the list in a pointer | |
431 | and do the continuations from there on, instead of using the | |
432 | global beginning of list as our iteration pointer.*/ | |
c5aa993b | 433 | void |
43ff13b4 | 434 | do_all_continuations () |
c2d11a7d JM |
435 | { |
436 | struct continuation *continuation_ptr; | |
437 | struct continuation *saved_continuation; | |
438 | ||
439 | /* Copy the list header into another pointer, and set the global | |
440 | list header to null, so that the global list can change as a side | |
441 | effect of invoking the continuations and the processing of | |
442 | the preexisting continuations will not be affected. */ | |
443 | continuation_ptr = cmd_continuation; | |
444 | cmd_continuation = NULL; | |
445 | ||
446 | /* Work now on the list we have set aside. */ | |
447 | while (continuation_ptr) | |
448 | { | |
449 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
450 | saved_continuation = continuation_ptr; | |
451 | continuation_ptr = continuation_ptr->next; | |
452 | free (saved_continuation); | |
453 | } | |
454 | } | |
455 | ||
456 | /* Walk down the cmd_continuation list, and get rid of all the | |
457 | continuations. */ | |
458 | void | |
459 | discard_all_continuations () | |
43ff13b4 | 460 | { |
c5aa993b | 461 | struct continuation *continuation_ptr; |
43ff13b4 | 462 | |
c5aa993b JM |
463 | while (cmd_continuation) |
464 | { | |
c5aa993b JM |
465 | continuation_ptr = cmd_continuation; |
466 | cmd_continuation = continuation_ptr->next; | |
467 | free (continuation_ptr); | |
468 | } | |
43ff13b4 | 469 | } |
c2c6d25f | 470 | |
c2d11a7d JM |
471 | /* Add a continuation to the continuation list, the gloabl list |
472 | intermediate_continuation. The new continuation will be added at the front.*/ | |
473 | void | |
474 | add_intermediate_continuation (continuation_hook, arg_list) | |
475 | void (*continuation_hook) PARAMS ((struct continuation_arg *)); | |
476 | struct continuation_arg *arg_list; | |
477 | { | |
478 | struct continuation *continuation_ptr; | |
479 | ||
480 | continuation_ptr = (struct continuation *) xmalloc (sizeof (struct continuation)); | |
481 | continuation_ptr->continuation_hook = continuation_hook; | |
482 | continuation_ptr->arg_list = arg_list; | |
483 | continuation_ptr->next = intermediate_continuation; | |
484 | intermediate_continuation = continuation_ptr; | |
485 | } | |
486 | ||
487 | /* Walk down the cmd_continuation list, and execute all the | |
488 | continuations. There is a problem though. In some cases new | |
489 | continuations may be added while we are in the middle of this | |
490 | loop. If this happens they will be added in the front, and done | |
491 | before we have a chance of exhausting those that were already | |
492 | there. We need to then save the beginning of the list in a pointer | |
493 | and do the continuations from there on, instead of using the | |
494 | global beginning of list as our iteration pointer.*/ | |
495 | void | |
496 | do_all_intermediate_continuations () | |
497 | { | |
498 | struct continuation *continuation_ptr; | |
499 | struct continuation *saved_continuation; | |
500 | ||
501 | /* Copy the list header into another pointer, and set the global | |
502 | list header to null, so that the global list can change as a side | |
503 | effect of invoking the continuations and the processing of | |
504 | the preexisting continuations will not be affected. */ | |
505 | continuation_ptr = intermediate_continuation; | |
506 | intermediate_continuation = NULL; | |
507 | ||
508 | /* Work now on the list we have set aside. */ | |
509 | while (continuation_ptr) | |
510 | { | |
511 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
512 | saved_continuation = continuation_ptr; | |
513 | continuation_ptr = continuation_ptr->next; | |
514 | free (saved_continuation); | |
515 | } | |
516 | } | |
517 | ||
c2c6d25f JM |
518 | /* Walk down the cmd_continuation list, and get rid of all the |
519 | continuations. */ | |
520 | void | |
c2d11a7d | 521 | discard_all_intermediate_continuations () |
c2c6d25f JM |
522 | { |
523 | struct continuation *continuation_ptr; | |
524 | ||
c2d11a7d | 525 | while (intermediate_continuation) |
c2c6d25f | 526 | { |
c2d11a7d JM |
527 | continuation_ptr = intermediate_continuation; |
528 | intermediate_continuation = continuation_ptr->next; | |
c2c6d25f JM |
529 | free (continuation_ptr); |
530 | } | |
531 | } | |
532 | ||
c906108c | 533 | \f |
c5aa993b | 534 | |
c906108c SS |
535 | /* Print a warning message. Way to use this is to call warning_begin, |
536 | output the warning message (use unfiltered output to gdb_stderr), | |
537 | ending in a newline. There is not currently a warning_end that you | |
538 | call afterwards, but such a thing might be added if it is useful | |
539 | for a GUI to separate warning messages from other output. | |
540 | ||
541 | FIXME: Why do warnings use unfiltered output and errors filtered? | |
542 | Is this anything other than a historical accident? */ | |
543 | ||
544 | void | |
545 | warning_begin () | |
546 | { | |
547 | target_terminal_ours (); | |
c5aa993b | 548 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
549 | gdb_flush (gdb_stdout); |
550 | if (warning_pre_print) | |
551 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
552 | } | |
553 | ||
554 | /* Print a warning message. | |
555 | The first argument STRING is the warning message, used as a fprintf string, | |
556 | and the remaining args are passed as arguments to it. | |
557 | The primary difference between warnings and errors is that a warning | |
558 | does not force the return to command level. */ | |
559 | ||
c906108c | 560 | void |
c5aa993b | 561 | warning (const char *string,...) |
c906108c SS |
562 | { |
563 | va_list args; | |
c906108c | 564 | va_start (args, string); |
c906108c SS |
565 | if (warning_hook) |
566 | (*warning_hook) (string, args); | |
567 | else | |
c5aa993b JM |
568 | { |
569 | warning_begin (); | |
570 | vfprintf_unfiltered (gdb_stderr, string, args); | |
571 | fprintf_unfiltered (gdb_stderr, "\n"); | |
572 | va_end (args); | |
573 | } | |
c906108c SS |
574 | } |
575 | ||
576 | /* Start the printing of an error message. Way to use this is to call | |
577 | this, output the error message (use filtered output to gdb_stderr | |
578 | (FIXME: Some callers, like memory_error, use gdb_stdout)), ending | |
579 | in a newline, and then call return_to_top_level (RETURN_ERROR). | |
580 | error() provides a convenient way to do this for the special case | |
581 | that the error message can be formatted with a single printf call, | |
582 | but this is more general. */ | |
583 | void | |
584 | error_begin () | |
585 | { | |
586 | if (error_begin_hook) | |
587 | error_begin_hook (); | |
588 | ||
589 | target_terminal_ours (); | |
c5aa993b | 590 | wrap_here (""); /* Force out any buffered output */ |
c906108c SS |
591 | gdb_flush (gdb_stdout); |
592 | ||
593 | annotate_error_begin (); | |
594 | ||
595 | if (error_pre_print) | |
596 | fprintf_filtered (gdb_stderr, error_pre_print); | |
597 | } | |
598 | ||
599 | /* Print an error message and return to command level. | |
600 | The first argument STRING is the error message, used as a fprintf string, | |
601 | and the remaining args are passed as arguments to it. */ | |
602 | ||
4ce44c66 JM |
603 | NORETURN void |
604 | verror (const char *string, va_list args) | |
605 | { | |
c2d11a7d JM |
606 | char *err_string; |
607 | struct cleanup *err_string_cleanup; | |
4ce44c66 JM |
608 | /* FIXME: cagney/1999-11-10: All error calls should come here. |
609 | Unfortunatly some code uses the sequence: error_begin(); print | |
610 | error message; return_to_top_level. That code should be | |
611 | flushed. */ | |
612 | error_begin (); | |
c2d11a7d JM |
613 | /* NOTE: It's tempting to just do the following... |
614 | vfprintf_filtered (gdb_stderr, string, args); | |
615 | and then follow with a similar looking statement to cause the message | |
616 | to also go to gdb_lasterr. But if we do this, we'll be traversing the | |
617 | va_list twice which works on some platforms and fails miserably on | |
618 | others. */ | |
619 | /* Save it as the last error */ | |
4ce44c66 JM |
620 | gdb_file_rewind (gdb_lasterr); |
621 | vfprintf_filtered (gdb_lasterr, string, args); | |
c2d11a7d JM |
622 | /* Retrieve the last error and print it to gdb_stderr */ |
623 | err_string = error_last_message (); | |
624 | err_string_cleanup = make_cleanup (free, err_string); | |
625 | fputs_filtered (err_string, gdb_stderr); | |
626 | fprintf_filtered (gdb_stderr, "\n"); | |
627 | do_cleanups (err_string_cleanup); | |
4ce44c66 JM |
628 | return_to_top_level (RETURN_ERROR); |
629 | } | |
630 | ||
c906108c | 631 | NORETURN void |
c5aa993b | 632 | error (const char *string,...) |
c906108c SS |
633 | { |
634 | va_list args; | |
c906108c | 635 | va_start (args, string); |
4ce44c66 JM |
636 | verror (string, args); |
637 | va_end (args); | |
c906108c SS |
638 | } |
639 | ||
2acceee2 JM |
640 | NORETURN void |
641 | error_stream (GDB_FILE *stream) | |
642 | { | |
4ce44c66 JM |
643 | long size; |
644 | char *msg = gdb_file_xstrdup (stream, &size); | |
645 | make_cleanup (free, msg); | |
646 | error ("%s", msg); | |
2acceee2 JM |
647 | } |
648 | ||
649 | /* Get the last error message issued by gdb */ | |
650 | ||
651 | char * | |
652 | error_last_message (void) | |
653 | { | |
4ce44c66 JM |
654 | long len; |
655 | return gdb_file_xstrdup (gdb_lasterr, &len); | |
2acceee2 | 656 | } |
4ce44c66 | 657 | |
2acceee2 JM |
658 | /* This is to be called by main() at the very beginning */ |
659 | ||
660 | void | |
661 | error_init (void) | |
662 | { | |
4ce44c66 | 663 | gdb_lasterr = mem_fileopen (); |
2acceee2 | 664 | } |
c906108c | 665 | |
96baa820 JM |
666 | /* Print a message reporting an internal error. Ask the user if they |
667 | want to continue, dump core, or just exit. */ | |
c906108c | 668 | |
c906108c | 669 | NORETURN void |
4ce44c66 | 670 | internal_verror (const char *fmt, va_list ap) |
c906108c | 671 | { |
96baa820 JM |
672 | static char msg[] = "Internal GDB error: recursive internal error.\n"; |
673 | static int dejavu = 0; | |
7be570e7 JM |
674 | int continue_p; |
675 | int dump_core_p; | |
c906108c | 676 | |
96baa820 JM |
677 | /* don't allow infinite error recursion. */ |
678 | switch (dejavu) | |
679 | { | |
680 | case 0: | |
681 | dejavu = 1; | |
682 | break; | |
683 | case 1: | |
684 | dejavu = 2; | |
685 | fputs_unfiltered (msg, gdb_stderr); | |
686 | abort (); | |
687 | default: | |
688 | dejavu = 3; | |
689 | write (STDERR_FILENO, msg, sizeof (msg)); | |
690 | exit (1); | |
691 | } | |
c906108c | 692 | |
96baa820 | 693 | /* Try to get the message out */ |
7be570e7 | 694 | fputs_unfiltered ("gdb-internal-error: ", gdb_stderr); |
4ce44c66 | 695 | vfprintf_unfiltered (gdb_stderr, fmt, ap); |
96baa820 | 696 | fputs_unfiltered ("\n", gdb_stderr); |
c906108c | 697 | |
7be570e7 JM |
698 | /* Default (no case) is to quit GDB. When in batch mode this |
699 | lessens the likelhood of GDB going into an infinate loop. */ | |
700 | continue_p = query ("\ | |
701 | An internal GDB error was detected. This may make make further\n\ | |
702 | debugging unreliable. Continue this debugging session? "); | |
703 | ||
704 | /* Default (no case) is to not dump core. Lessen the chance of GDB | |
705 | leaving random core files around. */ | |
706 | dump_core_p = query ("\ | |
707 | Create a core file containing the current state of GDB? "); | |
708 | ||
709 | if (continue_p) | |
710 | { | |
711 | if (dump_core_p) | |
712 | { | |
713 | if (fork () == 0) | |
714 | abort (); | |
715 | } | |
716 | } | |
717 | else | |
718 | { | |
719 | if (dump_core_p) | |
720 | abort (); | |
721 | else | |
722 | exit (1); | |
723 | } | |
96baa820 JM |
724 | |
725 | dejavu = 0; | |
726 | return_to_top_level (RETURN_ERROR); | |
c906108c SS |
727 | } |
728 | ||
4ce44c66 JM |
729 | NORETURN void |
730 | internal_error (char *string, ...) | |
731 | { | |
732 | va_list ap; | |
733 | va_start (ap, string); | |
734 | internal_verror (string, ap); | |
735 | va_end (ap); | |
736 | } | |
737 | ||
c906108c SS |
738 | /* The strerror() function can return NULL for errno values that are |
739 | out of range. Provide a "safe" version that always returns a | |
740 | printable string. */ | |
741 | ||
742 | char * | |
743 | safe_strerror (errnum) | |
744 | int errnum; | |
745 | { | |
746 | char *msg; | |
747 | static char buf[32]; | |
748 | ||
749 | if ((msg = strerror (errnum)) == NULL) | |
750 | { | |
751 | sprintf (buf, "(undocumented errno %d)", errnum); | |
752 | msg = buf; | |
753 | } | |
754 | return (msg); | |
755 | } | |
756 | ||
757 | /* The strsignal() function can return NULL for signal values that are | |
758 | out of range. Provide a "safe" version that always returns a | |
759 | printable string. */ | |
760 | ||
761 | char * | |
762 | safe_strsignal (signo) | |
763 | int signo; | |
764 | { | |
765 | char *msg; | |
766 | static char buf[32]; | |
767 | ||
768 | if ((msg = strsignal (signo)) == NULL) | |
769 | { | |
770 | sprintf (buf, "(undocumented signal %d)", signo); | |
771 | msg = buf; | |
772 | } | |
773 | return (msg); | |
774 | } | |
775 | ||
776 | ||
777 | /* Print the system error message for errno, and also mention STRING | |
778 | as the file name for which the error was encountered. | |
779 | Then return to command level. */ | |
780 | ||
781 | NORETURN void | |
782 | perror_with_name (string) | |
783 | char *string; | |
784 | { | |
785 | char *err; | |
786 | char *combined; | |
787 | ||
788 | err = safe_strerror (errno); | |
789 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
790 | strcpy (combined, string); | |
791 | strcat (combined, ": "); | |
792 | strcat (combined, err); | |
793 | ||
794 | /* I understand setting these is a matter of taste. Still, some people | |
795 | may clear errno but not know about bfd_error. Doing this here is not | |
796 | unreasonable. */ | |
797 | bfd_set_error (bfd_error_no_error); | |
798 | errno = 0; | |
799 | ||
c5aa993b | 800 | error ("%s.", combined); |
c906108c SS |
801 | } |
802 | ||
803 | /* Print the system error message for ERRCODE, and also mention STRING | |
804 | as the file name for which the error was encountered. */ | |
805 | ||
806 | void | |
807 | print_sys_errmsg (string, errcode) | |
808 | char *string; | |
809 | int errcode; | |
810 | { | |
811 | char *err; | |
812 | char *combined; | |
813 | ||
814 | err = safe_strerror (errcode); | |
815 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
816 | strcpy (combined, string); | |
817 | strcat (combined, ": "); | |
818 | strcat (combined, err); | |
819 | ||
820 | /* We want anything which was printed on stdout to come out first, before | |
821 | this message. */ | |
822 | gdb_flush (gdb_stdout); | |
823 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
824 | } | |
825 | ||
826 | /* Control C eventually causes this to be called, at a convenient time. */ | |
827 | ||
828 | void | |
829 | quit () | |
830 | { | |
831 | serial_t gdb_stdout_serial = serial_fdopen (1); | |
832 | ||
833 | target_terminal_ours (); | |
834 | ||
835 | /* We want all output to appear now, before we print "Quit". We | |
836 | have 3 levels of buffering we have to flush (it's possible that | |
837 | some of these should be changed to flush the lower-level ones | |
838 | too): */ | |
839 | ||
840 | /* 1. The _filtered buffer. */ | |
c5aa993b | 841 | wrap_here ((char *) 0); |
c906108c SS |
842 | |
843 | /* 2. The stdio buffer. */ | |
844 | gdb_flush (gdb_stdout); | |
845 | gdb_flush (gdb_stderr); | |
846 | ||
847 | /* 3. The system-level buffer. */ | |
848 | SERIAL_DRAIN_OUTPUT (gdb_stdout_serial); | |
849 | SERIAL_UN_FDOPEN (gdb_stdout_serial); | |
850 | ||
851 | annotate_error_begin (); | |
852 | ||
853 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ | |
854 | if (quit_pre_print) | |
855 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
856 | ||
7be570e7 JM |
857 | #ifdef __MSDOS__ |
858 | /* No steenking SIGINT will ever be coming our way when the | |
859 | program is resumed. Don't lie. */ | |
860 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
861 | #else | |
c906108c | 862 | if (job_control |
c5aa993b JM |
863 | /* If there is no terminal switching for this target, then we can't |
864 | possibly get screwed by the lack of job control. */ | |
c906108c SS |
865 | || current_target.to_terminal_ours == NULL) |
866 | fprintf_unfiltered (gdb_stderr, "Quit\n"); | |
867 | else | |
868 | fprintf_unfiltered (gdb_stderr, | |
c5aa993b | 869 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
7be570e7 | 870 | #endif |
c906108c SS |
871 | return_to_top_level (RETURN_QUIT); |
872 | } | |
873 | ||
874 | ||
7be570e7 | 875 | #if defined(_MSC_VER) /* should test for wingdb instead? */ |
c906108c SS |
876 | |
877 | /* | |
878 | * Windows translates all keyboard and mouse events | |
879 | * into a message which is appended to the message | |
880 | * queue for the process. | |
881 | */ | |
882 | ||
c5aa993b JM |
883 | void |
884 | notice_quit () | |
c906108c | 885 | { |
c5aa993b | 886 | int k = win32pollquit (); |
c906108c SS |
887 | if (k == 1) |
888 | quit_flag = 1; | |
889 | else if (k == 2) | |
890 | immediate_quit = 1; | |
891 | } | |
892 | ||
4ce44c66 | 893 | #else /* !defined(_MSC_VER) */ |
c906108c | 894 | |
c5aa993b JM |
895 | void |
896 | notice_quit () | |
c906108c SS |
897 | { |
898 | /* Done by signals */ | |
899 | } | |
900 | ||
4ce44c66 | 901 | #endif /* !defined(_MSC_VER) */ |
c906108c | 902 | |
c906108c | 903 | /* Control C comes here */ |
c906108c SS |
904 | void |
905 | request_quit (signo) | |
906 | int signo; | |
907 | { | |
908 | quit_flag = 1; | |
909 | /* Restore the signal handler. Harmless with BSD-style signals, needed | |
910 | for System V-style signals. So just always do it, rather than worrying | |
911 | about USG defines and stuff like that. */ | |
912 | signal (signo, request_quit); | |
913 | ||
914 | #ifdef REQUEST_QUIT | |
915 | REQUEST_QUIT; | |
916 | #else | |
c5aa993b | 917 | if (immediate_quit) |
c906108c SS |
918 | quit (); |
919 | #endif | |
920 | } | |
c906108c SS |
921 | \f |
922 | /* Memory management stuff (malloc friends). */ | |
923 | ||
924 | /* Make a substitute size_t for non-ANSI compilers. */ | |
925 | ||
926 | #ifndef HAVE_STDDEF_H | |
927 | #ifndef size_t | |
928 | #define size_t unsigned int | |
929 | #endif | |
930 | #endif | |
931 | ||
932 | #if !defined (USE_MMALLOC) | |
933 | ||
934 | PTR | |
935 | mmalloc (md, size) | |
936 | PTR md; | |
937 | size_t size; | |
938 | { | |
939 | return malloc (size); | |
940 | } | |
941 | ||
942 | PTR | |
943 | mrealloc (md, ptr, size) | |
944 | PTR md; | |
945 | PTR ptr; | |
946 | size_t size; | |
947 | { | |
c5aa993b | 948 | if (ptr == 0) /* Guard against old realloc's */ |
c906108c SS |
949 | return malloc (size); |
950 | else | |
951 | return realloc (ptr, size); | |
952 | } | |
953 | ||
954 | void | |
955 | mfree (md, ptr) | |
956 | PTR md; | |
957 | PTR ptr; | |
958 | { | |
959 | free (ptr); | |
960 | } | |
961 | ||
c5aa993b | 962 | #endif /* USE_MMALLOC */ |
c906108c SS |
963 | |
964 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
965 | ||
966 | void | |
967 | init_malloc (md) | |
968 | PTR md; | |
969 | { | |
970 | } | |
971 | ||
972 | #else /* Have mmalloc and want corruption checking */ | |
973 | ||
974 | static void | |
975 | malloc_botch () | |
976 | { | |
96baa820 JM |
977 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
978 | abort (); | |
c906108c SS |
979 | } |
980 | ||
981 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
982 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
983 | the default heap that grows via sbrk. | |
984 | ||
985 | Note that for freshly created regions, we must call mmcheckf prior to any | |
986 | mallocs in the region. Otherwise, any region which was allocated prior to | |
987 | installing the checking hooks, which is later reallocated or freed, will | |
988 | fail the checks! The mmcheck function only allows initial hooks to be | |
989 | installed before the first mmalloc. However, anytime after we have called | |
990 | mmcheck the first time to install the checking hooks, we can call it again | |
991 | to update the function pointer to the memory corruption handler. | |
992 | ||
993 | Returns zero on failure, non-zero on success. */ | |
994 | ||
995 | #ifndef MMCHECK_FORCE | |
996 | #define MMCHECK_FORCE 0 | |
997 | #endif | |
998 | ||
999 | void | |
1000 | init_malloc (md) | |
1001 | PTR md; | |
1002 | { | |
1003 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
1004 | { | |
1005 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
1006 | to something other than dummy_target, until after |
1007 | initialize_all_files(). */ | |
c906108c SS |
1008 | |
1009 | fprintf_unfiltered | |
1010 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
1011 | fprintf_unfiltered | |
1012 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
1013 | } | |
1014 | ||
1015 | mmtrace (); | |
1016 | } | |
1017 | ||
1018 | #endif /* Have mmalloc and want corruption checking */ | |
1019 | ||
1020 | /* Called when a memory allocation fails, with the number of bytes of | |
1021 | memory requested in SIZE. */ | |
1022 | ||
1023 | NORETURN void | |
1024 | nomem (size) | |
1025 | long size; | |
1026 | { | |
1027 | if (size > 0) | |
1028 | { | |
96baa820 | 1029 | internal_error ("virtual memory exhausted: can't allocate %ld bytes.", size); |
c906108c SS |
1030 | } |
1031 | else | |
1032 | { | |
96baa820 | 1033 | internal_error ("virtual memory exhausted."); |
c906108c SS |
1034 | } |
1035 | } | |
1036 | ||
1037 | /* Like mmalloc but get error if no storage available, and protect against | |
1038 | the caller wanting to allocate zero bytes. Whether to return NULL for | |
1039 | a zero byte request, or translate the request into a request for one | |
1040 | byte of zero'd storage, is a religious issue. */ | |
1041 | ||
1042 | PTR | |
1043 | xmmalloc (md, size) | |
1044 | PTR md; | |
1045 | long size; | |
1046 | { | |
1047 | register PTR val; | |
1048 | ||
1049 | if (size == 0) | |
1050 | { | |
1051 | val = NULL; | |
1052 | } | |
1053 | else if ((val = mmalloc (md, size)) == NULL) | |
1054 | { | |
1055 | nomem (size); | |
1056 | } | |
1057 | return (val); | |
1058 | } | |
1059 | ||
1060 | /* Like mrealloc but get error if no storage available. */ | |
1061 | ||
1062 | PTR | |
1063 | xmrealloc (md, ptr, size) | |
1064 | PTR md; | |
1065 | PTR ptr; | |
1066 | long size; | |
1067 | { | |
1068 | register PTR val; | |
1069 | ||
1070 | if (ptr != NULL) | |
1071 | { | |
1072 | val = mrealloc (md, ptr, size); | |
1073 | } | |
1074 | else | |
1075 | { | |
1076 | val = mmalloc (md, size); | |
1077 | } | |
1078 | if (val == NULL) | |
1079 | { | |
1080 | nomem (size); | |
1081 | } | |
1082 | return (val); | |
1083 | } | |
1084 | ||
1085 | /* Like malloc but get error if no storage available, and protect against | |
1086 | the caller wanting to allocate zero bytes. */ | |
1087 | ||
1088 | PTR | |
1089 | xmalloc (size) | |
1090 | size_t size; | |
1091 | { | |
1092 | return (xmmalloc ((PTR) NULL, size)); | |
1093 | } | |
1094 | ||
1095 | /* Like mrealloc but get error if no storage available. */ | |
1096 | ||
1097 | PTR | |
1098 | xrealloc (ptr, size) | |
1099 | PTR ptr; | |
1100 | size_t size; | |
1101 | { | |
1102 | return (xmrealloc ((PTR) NULL, ptr, size)); | |
1103 | } | |
c906108c | 1104 | \f |
c5aa993b | 1105 | |
c906108c SS |
1106 | /* My replacement for the read system call. |
1107 | Used like `read' but keeps going if `read' returns too soon. */ | |
1108 | ||
1109 | int | |
1110 | myread (desc, addr, len) | |
1111 | int desc; | |
1112 | char *addr; | |
1113 | int len; | |
1114 | { | |
1115 | register int val; | |
1116 | int orglen = len; | |
1117 | ||
1118 | while (len > 0) | |
1119 | { | |
1120 | val = read (desc, addr, len); | |
1121 | if (val < 0) | |
1122 | return val; | |
1123 | if (val == 0) | |
1124 | return orglen - len; | |
1125 | len -= val; | |
1126 | addr += val; | |
1127 | } | |
1128 | return orglen; | |
1129 | } | |
1130 | \f | |
1131 | /* Make a copy of the string at PTR with SIZE characters | |
1132 | (and add a null character at the end in the copy). | |
1133 | Uses malloc to get the space. Returns the address of the copy. */ | |
1134 | ||
1135 | char * | |
1136 | savestring (ptr, size) | |
1137 | const char *ptr; | |
1138 | int size; | |
1139 | { | |
1140 | register char *p = (char *) xmalloc (size + 1); | |
1141 | memcpy (p, ptr, size); | |
1142 | p[size] = 0; | |
1143 | return p; | |
1144 | } | |
1145 | ||
1146 | char * | |
1147 | msavestring (md, ptr, size) | |
1148 | PTR md; | |
1149 | const char *ptr; | |
1150 | int size; | |
1151 | { | |
1152 | register char *p = (char *) xmmalloc (md, size + 1); | |
1153 | memcpy (p, ptr, size); | |
1154 | p[size] = 0; | |
1155 | return p; | |
1156 | } | |
1157 | ||
1158 | /* The "const" is so it compiles under DGUX (which prototypes strsave | |
1159 | in <string.h>. FIXME: This should be named "xstrsave", shouldn't it? | |
1160 | Doesn't real strsave return NULL if out of memory? */ | |
1161 | char * | |
1162 | strsave (ptr) | |
1163 | const char *ptr; | |
1164 | { | |
1165 | return savestring (ptr, strlen (ptr)); | |
1166 | } | |
1167 | ||
1168 | char * | |
1169 | mstrsave (md, ptr) | |
1170 | PTR md; | |
1171 | const char *ptr; | |
1172 | { | |
1173 | return (msavestring (md, ptr, strlen (ptr))); | |
1174 | } | |
1175 | ||
1176 | void | |
1177 | print_spaces (n, file) | |
1178 | register int n; | |
1179 | register GDB_FILE *file; | |
1180 | { | |
392a587b | 1181 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1182 | } |
1183 | ||
1184 | /* Print a host address. */ | |
1185 | ||
1186 | void | |
d4f3574e | 1187 | gdb_print_host_address (void *addr, struct gdb_file *stream) |
c906108c SS |
1188 | { |
1189 | ||
1190 | /* We could use the %p conversion specifier to fprintf if we had any | |
1191 | way of knowing whether this host supports it. But the following | |
1192 | should work on the Alpha and on 32 bit machines. */ | |
1193 | ||
c5aa993b | 1194 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1195 | } |
1196 | ||
1197 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1198 | Takes three args which are given to printf to print the question. | |
1199 | The first, a control string, should end in "? ". | |
1200 | It should not say how to answer, because we do that. */ | |
1201 | ||
1202 | /* VARARGS */ | |
1203 | int | |
c5aa993b | 1204 | query (char *ctlstr,...) |
c906108c SS |
1205 | { |
1206 | va_list args; | |
1207 | register int answer; | |
1208 | register int ans2; | |
1209 | int retval; | |
1210 | ||
c906108c | 1211 | va_start (args, ctlstr); |
c906108c SS |
1212 | |
1213 | if (query_hook) | |
1214 | { | |
1215 | return query_hook (ctlstr, args); | |
1216 | } | |
1217 | ||
1218 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1219 | if (!input_from_terminal_p ()) | |
1220 | return 1; | |
1221 | #ifdef MPW | |
1222 | /* FIXME Automatically answer "yes" if called from MacGDB. */ | |
1223 | if (mac_app) | |
1224 | return 1; | |
1225 | #endif /* MPW */ | |
1226 | ||
1227 | while (1) | |
1228 | { | |
1229 | wrap_here (""); /* Flush any buffered output */ | |
1230 | gdb_flush (gdb_stdout); | |
1231 | ||
1232 | if (annotation_level > 1) | |
1233 | printf_filtered ("\n\032\032pre-query\n"); | |
1234 | ||
1235 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1236 | printf_filtered ("(y or n) "); | |
1237 | ||
1238 | if (annotation_level > 1) | |
1239 | printf_filtered ("\n\032\032query\n"); | |
1240 | ||
1241 | #ifdef MPW | |
1242 | /* If not in MacGDB, move to a new line so the entered line doesn't | |
c5aa993b | 1243 | have a prompt on the front of it. */ |
c906108c SS |
1244 | if (!mac_app) |
1245 | fputs_unfiltered ("\n", gdb_stdout); | |
1246 | #endif /* MPW */ | |
1247 | ||
c5aa993b | 1248 | wrap_here (""); |
c906108c SS |
1249 | gdb_flush (gdb_stdout); |
1250 | ||
1251 | #if defined(TUI) | |
c5aa993b | 1252 | if (!tui_version || cmdWin == tuiWinWithFocus ()) |
c906108c SS |
1253 | #endif |
1254 | answer = fgetc (stdin); | |
1255 | #if defined(TUI) | |
1256 | else | |
c5aa993b | 1257 | answer = (unsigned char) tuiBufferGetc (); |
c906108c SS |
1258 | |
1259 | #endif | |
1260 | clearerr (stdin); /* in case of C-d */ | |
1261 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1262 | { |
c906108c SS |
1263 | retval = 1; |
1264 | break; | |
1265 | } | |
1266 | /* Eat rest of input line, to EOF or newline */ | |
1267 | if ((answer != '\n') || (tui_version && answer != '\r')) | |
c5aa993b | 1268 | do |
c906108c SS |
1269 | { |
1270 | #if defined(TUI) | |
c5aa993b | 1271 | if (!tui_version || cmdWin == tuiWinWithFocus ()) |
c906108c SS |
1272 | #endif |
1273 | ans2 = fgetc (stdin); | |
1274 | #if defined(TUI) | |
1275 | else | |
c5aa993b | 1276 | ans2 = (unsigned char) tuiBufferGetc (); |
c906108c SS |
1277 | #endif |
1278 | clearerr (stdin); | |
1279 | } | |
c5aa993b JM |
1280 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
1281 | TUIDO (((TuiOpaqueFuncPtr) tui_vStartNewLines, 1)); | |
c906108c SS |
1282 | |
1283 | if (answer >= 'a') | |
1284 | answer -= 040; | |
1285 | if (answer == 'Y') | |
1286 | { | |
1287 | retval = 1; | |
1288 | break; | |
1289 | } | |
1290 | if (answer == 'N') | |
1291 | { | |
1292 | retval = 0; | |
1293 | break; | |
1294 | } | |
1295 | printf_filtered ("Please answer y or n.\n"); | |
1296 | } | |
1297 | ||
1298 | if (annotation_level > 1) | |
1299 | printf_filtered ("\n\032\032post-query\n"); | |
1300 | return retval; | |
1301 | } | |
c906108c | 1302 | \f |
c5aa993b | 1303 | |
c906108c SS |
1304 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1305 | containing a pointer to the string to parse. That pointer | |
1306 | should point to the character after the \. That pointer | |
1307 | is updated past the characters we use. The value of the | |
1308 | escape sequence is returned. | |
1309 | ||
1310 | A negative value means the sequence \ newline was seen, | |
1311 | which is supposed to be equivalent to nothing at all. | |
1312 | ||
1313 | If \ is followed by a null character, we return a negative | |
1314 | value and leave the string pointer pointing at the null character. | |
1315 | ||
1316 | If \ is followed by 000, we return 0 and leave the string pointer | |
1317 | after the zeros. A value of 0 does not mean end of string. */ | |
1318 | ||
1319 | int | |
1320 | parse_escape (string_ptr) | |
1321 | char **string_ptr; | |
1322 | { | |
1323 | register int c = *(*string_ptr)++; | |
1324 | switch (c) | |
1325 | { | |
1326 | case 'a': | |
1327 | return 007; /* Bell (alert) char */ | |
1328 | case 'b': | |
1329 | return '\b'; | |
1330 | case 'e': /* Escape character */ | |
1331 | return 033; | |
1332 | case 'f': | |
1333 | return '\f'; | |
1334 | case 'n': | |
1335 | return '\n'; | |
1336 | case 'r': | |
1337 | return '\r'; | |
1338 | case 't': | |
1339 | return '\t'; | |
1340 | case 'v': | |
1341 | return '\v'; | |
1342 | case '\n': | |
1343 | return -2; | |
1344 | case 0: | |
1345 | (*string_ptr)--; | |
1346 | return 0; | |
1347 | case '^': | |
1348 | c = *(*string_ptr)++; | |
1349 | if (c == '\\') | |
1350 | c = parse_escape (string_ptr); | |
1351 | if (c == '?') | |
1352 | return 0177; | |
1353 | return (c & 0200) | (c & 037); | |
c5aa993b | 1354 | |
c906108c SS |
1355 | case '0': |
1356 | case '1': | |
1357 | case '2': | |
1358 | case '3': | |
1359 | case '4': | |
1360 | case '5': | |
1361 | case '6': | |
1362 | case '7': | |
1363 | { | |
1364 | register int i = c - '0'; | |
1365 | register int count = 0; | |
1366 | while (++count < 3) | |
1367 | { | |
1368 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1369 | { | |
1370 | i *= 8; | |
1371 | i += c - '0'; | |
1372 | } | |
1373 | else | |
1374 | { | |
1375 | (*string_ptr)--; | |
1376 | break; | |
1377 | } | |
1378 | } | |
1379 | return i; | |
1380 | } | |
1381 | default: | |
1382 | return c; | |
1383 | } | |
1384 | } | |
1385 | \f | |
1386 | /* Print the character C on STREAM as part of the contents of a literal | |
1387 | string whose delimiter is QUOTER. Note that this routine should only | |
1388 | be call for printing things which are independent of the language | |
1389 | of the program being debugged. */ | |
1390 | ||
43e526b9 JM |
1391 | static void printchar PARAMS ((int c, void (*do_fputs) (const char *, GDB_FILE*), void (*do_fprintf) (GDB_FILE*, const char *, ...), GDB_FILE *stream, int quoter)); |
1392 | ||
1393 | static void | |
1394 | printchar (c, do_fputs, do_fprintf, stream, quoter) | |
1395 | int c; | |
1396 | void (*do_fputs) PARAMS ((const char *, GDB_FILE*)); | |
1397 | void (*do_fprintf) PARAMS ((GDB_FILE*, const char *, ...)); | |
c906108c SS |
1398 | GDB_FILE *stream; |
1399 | int quoter; | |
1400 | { | |
1401 | ||
1402 | c &= 0xFF; /* Avoid sign bit follies */ | |
1403 | ||
c5aa993b JM |
1404 | if (c < 0x20 || /* Low control chars */ |
1405 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1406 | (sevenbit_strings && c >= 0x80)) | |
1407 | { /* high order bit set */ | |
1408 | switch (c) | |
1409 | { | |
1410 | case '\n': | |
43e526b9 | 1411 | do_fputs ("\\n", stream); |
c5aa993b JM |
1412 | break; |
1413 | case '\b': | |
43e526b9 | 1414 | do_fputs ("\\b", stream); |
c5aa993b JM |
1415 | break; |
1416 | case '\t': | |
43e526b9 | 1417 | do_fputs ("\\t", stream); |
c5aa993b JM |
1418 | break; |
1419 | case '\f': | |
43e526b9 | 1420 | do_fputs ("\\f", stream); |
c5aa993b JM |
1421 | break; |
1422 | case '\r': | |
43e526b9 | 1423 | do_fputs ("\\r", stream); |
c5aa993b JM |
1424 | break; |
1425 | case '\033': | |
43e526b9 | 1426 | do_fputs ("\\e", stream); |
c5aa993b JM |
1427 | break; |
1428 | case '\007': | |
43e526b9 | 1429 | do_fputs ("\\a", stream); |
c5aa993b JM |
1430 | break; |
1431 | default: | |
43e526b9 | 1432 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1433 | break; |
1434 | } | |
1435 | } | |
1436 | else | |
1437 | { | |
1438 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1439 | do_fputs ("\\", stream); |
1440 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1441 | } |
c906108c | 1442 | } |
43e526b9 JM |
1443 | |
1444 | /* Print the character C on STREAM as part of the contents of a | |
1445 | literal string whose delimiter is QUOTER. Note that these routines | |
1446 | should only be call for printing things which are independent of | |
1447 | the language of the program being debugged. */ | |
1448 | ||
1449 | void | |
1450 | fputstr_filtered (str, quoter, stream) | |
1451 | const char *str; | |
1452 | int quoter; | |
1453 | GDB_FILE *stream; | |
1454 | { | |
1455 | while (*str) | |
1456 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1457 | } | |
1458 | ||
1459 | void | |
1460 | fputstr_unfiltered (str, quoter, stream) | |
1461 | const char *str; | |
1462 | int quoter; | |
1463 | GDB_FILE *stream; | |
1464 | { | |
1465 | while (*str) | |
1466 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1467 | } | |
1468 | ||
1469 | void | |
1470 | fputstrn_unfiltered (str, n, quoter, stream) | |
1471 | const char *str; | |
1472 | int n; | |
1473 | int quoter; | |
1474 | GDB_FILE *stream; | |
1475 | { | |
1476 | int i; | |
1477 | for (i = 0; i < n; i++) | |
1478 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1479 | } | |
1480 | ||
c906108c | 1481 | \f |
c5aa993b | 1482 | |
c906108c SS |
1483 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1484 | static unsigned int lines_per_page; | |
e514a9d6 | 1485 | /* Number of chars per line or UNIT_MAX if line folding is disabled. */ |
c906108c SS |
1486 | static unsigned int chars_per_line; |
1487 | /* Current count of lines printed on this page, chars on this line. */ | |
1488 | static unsigned int lines_printed, chars_printed; | |
1489 | ||
1490 | /* Buffer and start column of buffered text, for doing smarter word- | |
1491 | wrapping. When someone calls wrap_here(), we start buffering output | |
1492 | that comes through fputs_filtered(). If we see a newline, we just | |
1493 | spit it out and forget about the wrap_here(). If we see another | |
1494 | wrap_here(), we spit it out and remember the newer one. If we see | |
1495 | the end of the line, we spit out a newline, the indent, and then | |
1496 | the buffered output. */ | |
1497 | ||
1498 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1499 | are waiting to be output (they have already been counted in chars_printed). | |
1500 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1501 | static char *wrap_buffer; | |
1502 | ||
1503 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1504 | static char *wrap_pointer; | |
1505 | ||
1506 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1507 | is non-zero. */ | |
1508 | static char *wrap_indent; | |
1509 | ||
1510 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1511 | is not in effect. */ | |
1512 | static int wrap_column; | |
c906108c | 1513 | \f |
c5aa993b | 1514 | |
c906108c SS |
1515 | /* Inialize the lines and chars per page */ |
1516 | void | |
c5aa993b | 1517 | init_page_info () |
c906108c SS |
1518 | { |
1519 | #if defined(TUI) | |
c5aa993b | 1520 | if (tui_version && m_winPtrNotNull (cmdWin)) |
c906108c SS |
1521 | { |
1522 | lines_per_page = cmdWin->generic.height; | |
1523 | chars_per_line = cmdWin->generic.width; | |
1524 | } | |
1525 | else | |
1526 | #endif | |
1527 | { | |
1528 | /* These defaults will be used if we are unable to get the correct | |
1529 | values from termcap. */ | |
1530 | #if defined(__GO32__) | |
c5aa993b JM |
1531 | lines_per_page = ScreenRows (); |
1532 | chars_per_line = ScreenCols (); | |
1533 | #else | |
c906108c SS |
1534 | lines_per_page = 24; |
1535 | chars_per_line = 80; | |
1536 | ||
1537 | #if !defined (MPW) && !defined (_WIN32) | |
1538 | /* No termcap under MPW, although might be cool to do something | |
1539 | by looking at worksheet or console window sizes. */ | |
1540 | /* Initialize the screen height and width from termcap. */ | |
1541 | { | |
c5aa993b | 1542 | char *termtype = getenv ("TERM"); |
c906108c | 1543 | |
c5aa993b JM |
1544 | /* Positive means success, nonpositive means failure. */ |
1545 | int status; | |
c906108c | 1546 | |
c5aa993b JM |
1547 | /* 2048 is large enough for all known terminals, according to the |
1548 | GNU termcap manual. */ | |
1549 | char term_buffer[2048]; | |
c906108c | 1550 | |
c5aa993b JM |
1551 | if (termtype) |
1552 | { | |
c906108c SS |
1553 | status = tgetent (term_buffer, termtype); |
1554 | if (status > 0) | |
1555 | { | |
c5aa993b | 1556 | int val; |
c906108c | 1557 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1558 | |
1559 | val = tgetnum ("li"); | |
1560 | if (val >= 0 && !running_in_emacs) | |
1561 | lines_per_page = val; | |
1562 | else | |
1563 | /* The number of lines per page is not mentioned | |
c906108c SS |
1564 | in the terminal description. This probably means |
1565 | that paging is not useful (e.g. emacs shell window), | |
1566 | so disable paging. */ | |
c5aa993b JM |
1567 | lines_per_page = UINT_MAX; |
1568 | ||
1569 | val = tgetnum ("co"); | |
1570 | if (val >= 0) | |
1571 | chars_per_line = val; | |
c906108c | 1572 | } |
c5aa993b | 1573 | } |
c906108c SS |
1574 | } |
1575 | #endif /* MPW */ | |
1576 | ||
1577 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1578 | ||
1579 | /* If there is a better way to determine the window size, use it. */ | |
1580 | SIGWINCH_HANDLER (SIGWINCH); | |
1581 | #endif | |
1582 | #endif | |
1583 | /* If the output is not a terminal, don't paginate it. */ | |
1584 | if (!GDB_FILE_ISATTY (gdb_stdout)) | |
c5aa993b JM |
1585 | lines_per_page = UINT_MAX; |
1586 | } /* the command_line_version */ | |
1587 | set_width (); | |
c906108c SS |
1588 | } |
1589 | ||
1590 | static void | |
c5aa993b | 1591 | set_width () |
c906108c SS |
1592 | { |
1593 | if (chars_per_line == 0) | |
c5aa993b | 1594 | init_page_info (); |
c906108c SS |
1595 | |
1596 | if (!wrap_buffer) | |
1597 | { | |
1598 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1599 | wrap_buffer[0] = '\0'; | |
1600 | } | |
1601 | else | |
1602 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1603 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1604 | } |
1605 | ||
1606 | /* ARGSUSED */ | |
c5aa993b | 1607 | static void |
c906108c SS |
1608 | set_width_command (args, from_tty, c) |
1609 | char *args; | |
1610 | int from_tty; | |
1611 | struct cmd_list_element *c; | |
1612 | { | |
1613 | set_width (); | |
1614 | } | |
1615 | ||
1616 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1617 | to continue by pressing RETURN. */ | |
1618 | ||
1619 | static void | |
1620 | prompt_for_continue () | |
1621 | { | |
1622 | char *ignore; | |
1623 | char cont_prompt[120]; | |
1624 | ||
1625 | if (annotation_level > 1) | |
1626 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1627 | ||
1628 | strcpy (cont_prompt, | |
1629 | "---Type <return> to continue, or q <return> to quit---"); | |
1630 | if (annotation_level > 1) | |
1631 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1632 | ||
1633 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1634 | call us -- thinking that we're trying to print beyond the end of the | |
1635 | screen. */ | |
1636 | reinitialize_more_filter (); | |
1637 | ||
1638 | immediate_quit++; | |
1639 | /* On a real operating system, the user can quit with SIGINT. | |
1640 | But not on GO32. | |
1641 | ||
1642 | 'q' is provided on all systems so users don't have to change habits | |
1643 | from system to system, and because telling them what to do in | |
1644 | the prompt is more user-friendly than expecting them to think of | |
1645 | SIGINT. */ | |
1646 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1647 | whereas control-C to gdb_readline will cause the user to get dumped | |
1648 | out to DOS. */ | |
1649 | ignore = readline (cont_prompt); | |
1650 | ||
1651 | if (annotation_level > 1) | |
1652 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1653 | ||
1654 | if (ignore) | |
1655 | { | |
1656 | char *p = ignore; | |
1657 | while (*p == ' ' || *p == '\t') | |
1658 | ++p; | |
1659 | if (p[0] == 'q') | |
0f71a2f6 | 1660 | { |
6426a772 | 1661 | if (!event_loop_p) |
0f71a2f6 JM |
1662 | request_quit (SIGINT); |
1663 | else | |
c5aa993b | 1664 | async_request_quit (0); |
0f71a2f6 | 1665 | } |
c906108c SS |
1666 | free (ignore); |
1667 | } | |
1668 | immediate_quit--; | |
1669 | ||
1670 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1671 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1672 | reinitialize_more_filter (); | |
1673 | ||
1674 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1675 | } | |
1676 | ||
1677 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1678 | ||
1679 | void | |
1680 | reinitialize_more_filter () | |
1681 | { | |
1682 | lines_printed = 0; | |
1683 | chars_printed = 0; | |
1684 | } | |
1685 | ||
1686 | /* Indicate that if the next sequence of characters overflows the line, | |
1687 | a newline should be inserted here rather than when it hits the end. | |
1688 | If INDENT is non-null, it is a string to be printed to indent the | |
1689 | wrapped part on the next line. INDENT must remain accessible until | |
1690 | the next call to wrap_here() or until a newline is printed through | |
1691 | fputs_filtered(). | |
1692 | ||
1693 | If the line is already overfull, we immediately print a newline and | |
1694 | the indentation, and disable further wrapping. | |
1695 | ||
1696 | If we don't know the width of lines, but we know the page height, | |
1697 | we must not wrap words, but should still keep track of newlines | |
1698 | that were explicitly printed. | |
1699 | ||
1700 | INDENT should not contain tabs, as that will mess up the char count | |
1701 | on the next line. FIXME. | |
1702 | ||
1703 | This routine is guaranteed to force out any output which has been | |
1704 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1705 | used to force out output from the wrap_buffer. */ | |
1706 | ||
1707 | void | |
c5aa993b | 1708 | wrap_here (indent) |
c906108c SS |
1709 | char *indent; |
1710 | { | |
1711 | /* This should have been allocated, but be paranoid anyway. */ | |
1712 | if (!wrap_buffer) | |
1713 | abort (); | |
1714 | ||
1715 | if (wrap_buffer[0]) | |
1716 | { | |
1717 | *wrap_pointer = '\0'; | |
1718 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1719 | } | |
1720 | wrap_pointer = wrap_buffer; | |
1721 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1722 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1723 | { |
1724 | wrap_column = 0; | |
1725 | } | |
1726 | else if (chars_printed >= chars_per_line) | |
1727 | { | |
1728 | puts_filtered ("\n"); | |
1729 | if (indent != NULL) | |
1730 | puts_filtered (indent); | |
1731 | wrap_column = 0; | |
1732 | } | |
1733 | else | |
1734 | { | |
1735 | wrap_column = chars_printed; | |
1736 | if (indent == NULL) | |
1737 | wrap_indent = ""; | |
1738 | else | |
1739 | wrap_indent = indent; | |
1740 | } | |
1741 | } | |
1742 | ||
1743 | /* Ensure that whatever gets printed next, using the filtered output | |
1744 | commands, starts at the beginning of the line. I.E. if there is | |
1745 | any pending output for the current line, flush it and start a new | |
1746 | line. Otherwise do nothing. */ | |
1747 | ||
1748 | void | |
1749 | begin_line () | |
1750 | { | |
1751 | if (chars_printed > 0) | |
1752 | { | |
1753 | puts_filtered ("\n"); | |
1754 | } | |
1755 | } | |
1756 | ||
ac9a91a7 JM |
1757 | |
1758 | /* ``struct gdb_file'' implementation that maps directly onto | |
1759 | <stdio.h>'s FILE. */ | |
1760 | ||
11cf8741 | 1761 | static gdb_file_write_ftype stdio_file_write; |
ac9a91a7 JM |
1762 | static gdb_file_fputs_ftype stdio_file_fputs; |
1763 | static gdb_file_isatty_ftype stdio_file_isatty; | |
1764 | static gdb_file_delete_ftype stdio_file_delete; | |
c5aa993b | 1765 | static struct gdb_file *stdio_file_new PARAMS ((FILE * file, int close_p)); |
ac9a91a7 JM |
1766 | static gdb_file_flush_ftype stdio_file_flush; |
1767 | ||
1768 | static int stdio_file_magic; | |
1769 | ||
1770 | struct stdio_file | |
c5aa993b JM |
1771 | { |
1772 | int *magic; | |
1773 | FILE *file; | |
1774 | int close_p; | |
1775 | }; | |
ac9a91a7 JM |
1776 | |
1777 | static struct gdb_file * | |
1778 | stdio_file_new (file, close_p) | |
1779 | FILE *file; | |
1780 | int close_p; | |
1781 | { | |
1782 | struct gdb_file *gdb_file = gdb_file_new (); | |
1783 | struct stdio_file *stdio = xmalloc (sizeof (struct stdio_file)); | |
1784 | stdio->magic = &stdio_file_magic; | |
1785 | stdio->file = file; | |
1786 | stdio->close_p = close_p; | |
1787 | set_gdb_file_data (gdb_file, stdio, stdio_file_delete); | |
1788 | set_gdb_file_flush (gdb_file, stdio_file_flush); | |
11cf8741 | 1789 | set_gdb_file_write (gdb_file, stdio_file_write); |
ac9a91a7 JM |
1790 | set_gdb_file_fputs (gdb_file, stdio_file_fputs); |
1791 | set_gdb_file_isatty (gdb_file, stdio_file_isatty); | |
1792 | return gdb_file; | |
1793 | } | |
1794 | ||
1795 | static void | |
1796 | stdio_file_delete (file) | |
1797 | struct gdb_file *file; | |
1798 | { | |
1799 | struct stdio_file *stdio = gdb_file_data (file); | |
1800 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1801 | internal_error ("stdio_file_delete: bad magic number"); |
ac9a91a7 JM |
1802 | if (stdio->close_p) |
1803 | { | |
1804 | fclose (stdio->file); | |
1805 | } | |
1806 | free (stdio); | |
1807 | } | |
1808 | ||
1809 | static void | |
1810 | stdio_file_flush (file) | |
1811 | struct gdb_file *file; | |
c906108c | 1812 | { |
ac9a91a7 JM |
1813 | struct stdio_file *stdio = gdb_file_data (file); |
1814 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1815 | internal_error ("stdio_file_flush: bad magic number"); |
ac9a91a7 JM |
1816 | fflush (stdio->file); |
1817 | } | |
1818 | ||
11cf8741 JM |
1819 | static void |
1820 | stdio_file_write (struct gdb_file *file, const char *buf, long length_buf) | |
1821 | { | |
1822 | struct stdio_file *stdio = gdb_file_data (file); | |
1823 | if (stdio->magic != &stdio_file_magic) | |
1824 | internal_error ("stdio_file_write: bad magic number"); | |
1825 | fwrite (buf, length_buf, 1, stdio->file); | |
1826 | } | |
1827 | ||
ac9a91a7 JM |
1828 | static void |
1829 | stdio_file_fputs (linebuffer, file) | |
1830 | const char *linebuffer; | |
1831 | struct gdb_file *file; | |
1832 | { | |
1833 | struct stdio_file *stdio = gdb_file_data (file); | |
1834 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1835 | internal_error ("stdio_file_fputs: bad magic number"); |
ac9a91a7 JM |
1836 | fputs (linebuffer, stdio->file); |
1837 | } | |
1838 | ||
1839 | static int | |
1840 | stdio_file_isatty (file) | |
1841 | struct gdb_file *file; | |
1842 | { | |
1843 | struct stdio_file *stdio = gdb_file_data (file); | |
1844 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1845 | internal_error ("stdio_file_isatty: bad magic number"); |
ac9a91a7 JM |
1846 | return (isatty (fileno (stdio->file))); |
1847 | } | |
1848 | ||
1849 | /* Like fdopen(). Create a gdb_file from a previously opened FILE. */ | |
1850 | ||
1851 | struct gdb_file * | |
1852 | stdio_fileopen (file) | |
1853 | FILE *file; | |
1854 | { | |
1855 | return stdio_file_new (file, 0); | |
1856 | } | |
1857 | ||
1858 | ||
917317f4 | 1859 | /* A pure memory based ``struct gdb_file'' that can be used an output |
4ce44c66 JM |
1860 | buffer. The buffers accumulated contents are available via |
1861 | gdb_file_put(). */ | |
917317f4 JM |
1862 | |
1863 | struct mem_file | |
1864 | { | |
1865 | int *magic; | |
1866 | char *buffer; | |
1867 | int sizeof_buffer; | |
4ce44c66 | 1868 | int length_buffer; |
917317f4 JM |
1869 | }; |
1870 | ||
917317f4 JM |
1871 | static gdb_file_rewind_ftype mem_file_rewind; |
1872 | static gdb_file_put_ftype mem_file_put; | |
4ce44c66 | 1873 | static gdb_file_write_ftype mem_file_write; |
917317f4 JM |
1874 | static gdb_file_delete_ftype mem_file_delete; |
1875 | static struct gdb_file *mem_file_new PARAMS ((void)); | |
1876 | static int mem_file_magic; | |
1877 | ||
1878 | static struct gdb_file * | |
1879 | mem_file_new (void) | |
1880 | { | |
1881 | struct mem_file *stream = XMALLOC (struct mem_file); | |
1882 | struct gdb_file *file = gdb_file_new (); | |
1883 | set_gdb_file_data (file, stream, mem_file_delete); | |
917317f4 JM |
1884 | set_gdb_file_rewind (file, mem_file_rewind); |
1885 | set_gdb_file_put (file, mem_file_put); | |
4ce44c66 | 1886 | set_gdb_file_write (file, mem_file_write); |
917317f4 JM |
1887 | stream->magic = &mem_file_magic; |
1888 | stream->buffer = NULL; | |
1889 | stream->sizeof_buffer = 0; | |
4ce44c66 | 1890 | stream->length_buffer = 0; |
917317f4 JM |
1891 | return file; |
1892 | } | |
1893 | ||
1894 | static void | |
1895 | mem_file_delete (struct gdb_file *file) | |
1896 | { | |
1897 | struct mem_file *stream = gdb_file_data (file); | |
1898 | if (stream->magic != &mem_file_magic) | |
1899 | internal_error ("mem_file_delete: bad magic number"); | |
1900 | if (stream->buffer != NULL) | |
1901 | free (stream->buffer); | |
1902 | free (stream); | |
1903 | } | |
1904 | ||
1905 | struct gdb_file * | |
1906 | mem_fileopen (void) | |
1907 | { | |
1908 | return mem_file_new (); | |
1909 | } | |
1910 | ||
1911 | static void | |
1912 | mem_file_rewind (struct gdb_file *file) | |
1913 | { | |
1914 | struct mem_file *stream = gdb_file_data (file); | |
1915 | if (stream->magic != &mem_file_magic) | |
1916 | internal_error ("mem_file_rewind: bad magic number"); | |
4ce44c66 | 1917 | stream->length_buffer = 0; |
917317f4 JM |
1918 | } |
1919 | ||
1920 | static void | |
4ce44c66 JM |
1921 | mem_file_put (struct gdb_file *file, |
1922 | gdb_file_put_method_ftype *write, | |
1923 | void *dest) | |
917317f4 JM |
1924 | { |
1925 | struct mem_file *stream = gdb_file_data (file); | |
1926 | if (stream->magic != &mem_file_magic) | |
1927 | internal_error ("mem_file_put: bad magic number"); | |
4ce44c66 JM |
1928 | if (stream->length_buffer > 0) |
1929 | write (dest, stream->buffer, stream->length_buffer); | |
917317f4 JM |
1930 | } |
1931 | ||
1932 | void | |
4ce44c66 JM |
1933 | mem_file_write (struct gdb_file *file, |
1934 | const char *buffer, | |
1935 | long length_buffer) | |
917317f4 JM |
1936 | { |
1937 | struct mem_file *stream = gdb_file_data (file); | |
1938 | if (stream->magic != &mem_file_magic) | |
4ce44c66 | 1939 | internal_error ("mem_file_write: bad magic number"); |
917317f4 JM |
1940 | if (stream->buffer == NULL) |
1941 | { | |
4ce44c66 JM |
1942 | stream->length_buffer = length_buffer; |
1943 | stream->sizeof_buffer = length_buffer; | |
917317f4 | 1944 | stream->buffer = xmalloc (stream->sizeof_buffer); |
4ce44c66 | 1945 | memcpy (stream->buffer, buffer, length_buffer); |
917317f4 JM |
1946 | } |
1947 | else | |
1948 | { | |
4ce44c66 JM |
1949 | int new_length = stream->length_buffer + length_buffer; |
1950 | if (new_length >= stream->sizeof_buffer) | |
917317f4 | 1951 | { |
4ce44c66 | 1952 | stream->sizeof_buffer = new_length; |
917317f4 JM |
1953 | stream->buffer = xrealloc (stream->buffer, stream->sizeof_buffer); |
1954 | } | |
4ce44c66 JM |
1955 | memcpy (stream->buffer + stream->length_buffer, buffer, length_buffer); |
1956 | stream->length_buffer = new_length; | |
917317f4 JM |
1957 | } |
1958 | } | |
1959 | ||
ac9a91a7 JM |
1960 | /* A ``struct gdb_file'' that is compatible with all the legacy |
1961 | code. */ | |
c906108c | 1962 | |
104c1213 JM |
1963 | /* new */ |
1964 | enum streamtype | |
1965 | { | |
1966 | afile, | |
1967 | astring | |
1968 | }; | |
1969 | ||
1970 | /* new */ | |
1971 | struct tui_stream | |
1972 | { | |
1973 | int *ts_magic; | |
1974 | enum streamtype ts_streamtype; | |
1975 | FILE *ts_filestream; | |
1976 | char *ts_strbuf; | |
1977 | int ts_buflen; | |
1978 | }; | |
1979 | ||
ac9a91a7 JM |
1980 | static gdb_file_flush_ftype tui_file_flush; |
1981 | extern gdb_file_fputs_ftype tui_file_fputs; | |
1982 | static gdb_file_isatty_ftype tui_file_isatty; | |
0f71a2f6 JM |
1983 | static gdb_file_rewind_ftype tui_file_rewind; |
1984 | static gdb_file_put_ftype tui_file_put; | |
ac9a91a7 JM |
1985 | static gdb_file_delete_ftype tui_file_delete; |
1986 | static struct gdb_file *tui_file_new PARAMS ((void)); | |
1987 | static int tui_file_magic; | |
1988 | ||
1989 | static struct gdb_file * | |
1990 | tui_file_new () | |
1991 | { | |
1992 | struct tui_stream *tui = xmalloc (sizeof (struct tui_stream)); | |
1993 | struct gdb_file *file = gdb_file_new (); | |
1994 | set_gdb_file_data (file, tui, tui_file_delete); | |
1995 | set_gdb_file_flush (file, tui_file_flush); | |
1996 | set_gdb_file_fputs (file, tui_file_fputs); | |
1997 | set_gdb_file_isatty (file, tui_file_isatty); | |
0f71a2f6 JM |
1998 | set_gdb_file_rewind (file, tui_file_rewind); |
1999 | set_gdb_file_put (file, tui_file_put); | |
ac9a91a7 JM |
2000 | tui->ts_magic = &tui_file_magic; |
2001 | return file; | |
2002 | } | |
2003 | ||
2004 | static void | |
2005 | tui_file_delete (file) | |
2006 | struct gdb_file *file; | |
2007 | { | |
2008 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2009 | if (tmpstream->ts_magic != &tui_file_magic) | |
11cf8741 | 2010 | internal_error ("tui_file_delete: bad magic number"); |
ac9a91a7 | 2011 | if ((tmpstream->ts_streamtype == astring) && |
c5aa993b | 2012 | (tmpstream->ts_strbuf != NULL)) |
ac9a91a7 JM |
2013 | { |
2014 | free (tmpstream->ts_strbuf); | |
2015 | } | |
2016 | free (tmpstream); | |
2017 | } | |
2018 | ||
2019 | struct gdb_file * | |
2020 | tui_fileopen (stream) | |
2021 | FILE *stream; | |
2022 | { | |
2023 | struct gdb_file *file = tui_file_new (); | |
2024 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2025 | tmpstream->ts_streamtype = afile; | |
2026 | tmpstream->ts_filestream = stream; | |
2027 | tmpstream->ts_strbuf = NULL; | |
2028 | tmpstream->ts_buflen = 0; | |
2029 | return file; | |
2030 | } | |
2031 | ||
2acceee2 JM |
2032 | struct gdb_file * |
2033 | tui_sfileopen (n) | |
2034 | int n; | |
2035 | { | |
2036 | struct gdb_file *file = tui_file_new (); | |
2037 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2038 | tmpstream->ts_streamtype = astring; | |
2039 | tmpstream->ts_filestream = NULL; | |
2040 | if (n > 0) | |
2041 | { | |
2042 | tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
2043 | tmpstream->ts_strbuf[0] = '\0'; | |
2044 | } | |
2045 | else | |
2046 | /* Do not allocate the buffer now. The first time something is printed | |
11cf8741 | 2047 | one will be allocated by tui_file_adjust_strbuf() */ |
2acceee2 JM |
2048 | tmpstream->ts_strbuf = NULL; |
2049 | tmpstream->ts_buflen = n; | |
2050 | return file; | |
2051 | } | |
2052 | ||
c5aa993b | 2053 | static int |
ac9a91a7 | 2054 | tui_file_isatty (file) |
c5aa993b | 2055 | struct gdb_file *file; |
ac9a91a7 JM |
2056 | { |
2057 | struct tui_stream *stream = gdb_file_data (file); | |
2058 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2059 | internal_error ("tui_file_isatty: bad magic number"); |
c906108c | 2060 | if (stream->ts_streamtype == afile) |
c5aa993b JM |
2061 | return (isatty (fileno (stream->ts_filestream))); |
2062 | else | |
2063 | return 0; | |
c906108c SS |
2064 | } |
2065 | ||
0f71a2f6 JM |
2066 | static void |
2067 | tui_file_rewind (file) | |
c5aa993b | 2068 | struct gdb_file *file; |
0f71a2f6 JM |
2069 | { |
2070 | struct tui_stream *stream = gdb_file_data (file); | |
2071 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2072 | internal_error ("tui_file_rewind: bad magic number"); |
0f71a2f6 JM |
2073 | stream->ts_strbuf[0] = '\0'; |
2074 | } | |
2075 | ||
2076 | static void | |
4ce44c66 JM |
2077 | tui_file_put (struct gdb_file *file, |
2078 | gdb_file_put_method_ftype *write, | |
2079 | void *dest) | |
0f71a2f6 JM |
2080 | { |
2081 | struct tui_stream *stream = gdb_file_data (file); | |
2082 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2083 | internal_error ("tui_file_put: bad magic number"); |
0f71a2f6 | 2084 | if (stream->ts_streamtype == astring) |
4ce44c66 | 2085 | write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf)); |
0f71a2f6 JM |
2086 | } |
2087 | ||
104c1213 JM |
2088 | /* All TUI I/O sent to the *_filtered and *_unfiltered functions |
2089 | eventually ends up here. The fputs_unfiltered_hook is primarily | |
2090 | used by GUIs to collect all output and send it to the GUI, instead | |
2091 | of the controlling terminal. Only output to gdb_stdout and | |
2092 | gdb_stderr are sent to the hook. Everything else is sent on to | |
2093 | fputs to allow file I/O to be handled appropriately. */ | |
2094 | ||
2095 | /* FIXME: Should be broken up and moved to a TUI specific file. */ | |
2096 | ||
2097 | void | |
2098 | tui_file_fputs (linebuffer, file) | |
2099 | const char *linebuffer; | |
2100 | GDB_FILE *file; | |
2101 | { | |
2102 | struct tui_stream *stream = gdb_file_data (file); | |
2103 | #if defined(TUI) | |
2104 | extern int tui_owns_terminal; | |
2105 | #endif | |
917317f4 JM |
2106 | /* NOTE: cagney/1999-10-13: The use of fputs_unfiltered_hook is |
2107 | seriously discouraged. Those wanting to hook output should | |
2108 | instead implement their own gdb_file object and install that. See | |
2109 | also tui_file_flush(). */ | |
104c1213 JM |
2110 | if (fputs_unfiltered_hook |
2111 | && (file == gdb_stdout | |
2112 | || file == gdb_stderr)) | |
2113 | fputs_unfiltered_hook (linebuffer, file); | |
2114 | else | |
2115 | { | |
2116 | #if defined(TUI) | |
2117 | if (tui_version && tui_owns_terminal) | |
2118 | { | |
2119 | /* If we get here somehow while updating the TUI (from | |
2120 | * within a tuiDo(), then we need to temporarily | |
2121 | * set up the terminal for GDB output. This probably just | |
2122 | * happens on error output. | |
2123 | */ | |
2124 | ||
2125 | if (stream->ts_streamtype == astring) | |
2126 | { | |
11cf8741 | 2127 | tui_file_adjust_strbuf (strlen (linebuffer), stream); |
104c1213 JM |
2128 | strcat (stream->ts_strbuf, linebuffer); |
2129 | } | |
2130 | else | |
2131 | { | |
2132 | tuiTermUnsetup (0, (tui_version) ? cmdWin->detail.commandInfo.curch : 0); | |
2133 | fputs (linebuffer, stream->ts_filestream); | |
2134 | tuiTermSetup (0); | |
2135 | if (linebuffer[strlen (linebuffer) - 1] == '\n') | |
2136 | tuiClearCommandCharCount (); | |
2137 | else | |
2138 | tuiIncrCommandCharCountBy (strlen (linebuffer)); | |
2139 | } | |
2140 | } | |
2141 | else | |
2142 | { | |
2143 | /* The normal case - just do a fputs() */ | |
2144 | if (stream->ts_streamtype == astring) | |
2145 | { | |
11cf8741 | 2146 | tui_file_adjust_strbuf (strlen (linebuffer), stream); |
104c1213 JM |
2147 | strcat (stream->ts_strbuf, linebuffer); |
2148 | } | |
2149 | else | |
2150 | fputs (linebuffer, stream->ts_filestream); | |
2151 | } | |
2152 | ||
2153 | ||
2154 | #else | |
2155 | if (stream->ts_streamtype == astring) | |
2156 | { | |
11cf8741 | 2157 | tui_file_adjust_strbuf (strlen (linebuffer), file); |
104c1213 JM |
2158 | strcat (stream->ts_strbuf, linebuffer); |
2159 | } | |
2160 | else | |
2161 | fputs (linebuffer, stream->ts_filestream); | |
2162 | #endif | |
2163 | } | |
2164 | } | |
2165 | ||
c906108c | 2166 | char * |
11cf8741 | 2167 | tui_file_get_strbuf (struct gdb_file *file) |
c906108c | 2168 | { |
ac9a91a7 JM |
2169 | struct tui_stream *stream = gdb_file_data (file); |
2170 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2171 | internal_error ("tui_file_get_strbuf: bad magic number"); |
c906108c SS |
2172 | return (stream->ts_strbuf); |
2173 | } | |
2174 | ||
2175 | /* adjust the length of the buffer by the amount necessary | |
2176 | to accomodate appending a string of length N to the buffer contents */ | |
2177 | void | |
11cf8741 | 2178 | tui_file_adjust_strbuf (int n, struct gdb_file *file) |
c906108c | 2179 | { |
ac9a91a7 | 2180 | struct tui_stream *stream = gdb_file_data (file); |
c906108c | 2181 | int non_null_chars; |
ac9a91a7 | 2182 | if (stream->ts_magic != &tui_file_magic) |
11cf8741 | 2183 | internal_error ("tui_file_adjust_strbuf: bad magic number"); |
392a587b JM |
2184 | |
2185 | if (stream->ts_streamtype != astring) | |
2186 | return; | |
c5aa993b | 2187 | |
392a587b | 2188 | if (stream->ts_strbuf) |
c906108c | 2189 | { |
392a587b | 2190 | /* There is already a buffer allocated */ |
c5aa993b JM |
2191 | non_null_chars = strlen (stream->ts_strbuf); |
2192 | ||
2193 | if (n > (stream->ts_buflen - non_null_chars - 1)) | |
2194 | { | |
2195 | stream->ts_buflen = n + non_null_chars + 1; | |
2196 | stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen); | |
2197 | } | |
2198 | } | |
392a587b JM |
2199 | else |
2200 | /* No buffer yet, so allocate one of the desired size */ | |
2201 | stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
c5aa993b | 2202 | } |
c906108c SS |
2203 | |
2204 | GDB_FILE * | |
2205 | gdb_fopen (name, mode) | |
c5aa993b JM |
2206 | char *name; |
2207 | char *mode; | |
c906108c | 2208 | { |
ac9a91a7 JM |
2209 | FILE *f = fopen (name, mode); |
2210 | if (f == NULL) | |
2211 | return NULL; | |
2212 | return stdio_file_new (f, 1); | |
c906108c SS |
2213 | } |
2214 | ||
ac9a91a7 JM |
2215 | static void |
2216 | tui_file_flush (file) | |
2217 | GDB_FILE *file; | |
c906108c | 2218 | { |
ac9a91a7 JM |
2219 | struct tui_stream *stream = gdb_file_data (file); |
2220 | if (stream->ts_magic != &tui_file_magic) | |
917317f4 JM |
2221 | internal_error ("tui_file_flush: bad magic number"); |
2222 | ||
2223 | /* NOTE: cagney/1999-10-12: If we've been linked with code that uses | |
2224 | fputs_unfiltered_hook then we assume that it doesn't need to know | |
2225 | about flushes. Code that does need to know about flushes can | |
2226 | implement a proper gdb_file object. */ | |
2227 | if (fputs_unfiltered_hook) | |
2228 | return; | |
2229 | ||
2230 | switch (stream->ts_streamtype) | |
c906108c | 2231 | { |
917317f4 JM |
2232 | case astring: |
2233 | break; | |
2234 | case afile: | |
2235 | fflush (stream->ts_filestream); | |
2236 | break; | |
c906108c | 2237 | } |
c906108c SS |
2238 | } |
2239 | ||
ac9a91a7 JM |
2240 | /* Implement the ``struct gdb_file'' object. */ |
2241 | ||
2242 | static gdb_file_isatty_ftype null_file_isatty; | |
11cf8741 | 2243 | static gdb_file_write_ftype null_file_write; |
ac9a91a7 JM |
2244 | static gdb_file_fputs_ftype null_file_fputs; |
2245 | static gdb_file_flush_ftype null_file_flush; | |
2246 | static gdb_file_delete_ftype null_file_delete; | |
0f71a2f6 JM |
2247 | static gdb_file_rewind_ftype null_file_rewind; |
2248 | static gdb_file_put_ftype null_file_put; | |
ac9a91a7 JM |
2249 | |
2250 | struct gdb_file | |
c5aa993b | 2251 | { |
4ce44c66 | 2252 | int *magic; |
c5aa993b | 2253 | gdb_file_flush_ftype *to_flush; |
11cf8741 | 2254 | gdb_file_write_ftype *to_write; |
c5aa993b JM |
2255 | gdb_file_fputs_ftype *to_fputs; |
2256 | gdb_file_delete_ftype *to_delete; | |
2257 | gdb_file_isatty_ftype *to_isatty; | |
2258 | gdb_file_rewind_ftype *to_rewind; | |
2259 | gdb_file_put_ftype *to_put; | |
2260 | void *to_data; | |
2261 | }; | |
4ce44c66 | 2262 | int gdb_file_magic; |
ac9a91a7 JM |
2263 | |
2264 | struct gdb_file * | |
2265 | gdb_file_new () | |
2266 | { | |
2267 | struct gdb_file *file = xmalloc (sizeof (struct gdb_file)); | |
4ce44c66 | 2268 | file->magic = &gdb_file_magic; |
ac9a91a7 JM |
2269 | set_gdb_file_data (file, NULL, null_file_delete); |
2270 | set_gdb_file_flush (file, null_file_flush); | |
11cf8741 | 2271 | set_gdb_file_write (file, null_file_write); |
ac9a91a7 JM |
2272 | set_gdb_file_fputs (file, null_file_fputs); |
2273 | set_gdb_file_isatty (file, null_file_isatty); | |
0f71a2f6 JM |
2274 | set_gdb_file_rewind (file, null_file_rewind); |
2275 | set_gdb_file_put (file, null_file_put); | |
ac9a91a7 JM |
2276 | return file; |
2277 | } | |
c906108c | 2278 | |
ac9a91a7 JM |
2279 | void |
2280 | gdb_file_delete (file) | |
2281 | struct gdb_file *file; | |
2282 | { | |
2283 | file->to_delete (file); | |
2284 | free (file); | |
2285 | } | |
2286 | ||
2287 | static int | |
2288 | null_file_isatty (file) | |
2289 | struct gdb_file *file; | |
2290 | { | |
2291 | return 0; | |
2292 | } | |
2293 | ||
0f71a2f6 JM |
2294 | static void |
2295 | null_file_rewind (file) | |
2296 | struct gdb_file *file; | |
2297 | { | |
2298 | return; | |
2299 | } | |
2300 | ||
2301 | static void | |
4ce44c66 JM |
2302 | null_file_put (struct gdb_file *file, |
2303 | gdb_file_put_method_ftype *write, | |
2304 | void *dest) | |
0f71a2f6 JM |
2305 | { |
2306 | return; | |
2307 | } | |
2308 | ||
ac9a91a7 JM |
2309 | static void |
2310 | null_file_flush (file) | |
2311 | struct gdb_file *file; | |
2312 | { | |
2313 | return; | |
2314 | } | |
2315 | ||
11cf8741 JM |
2316 | static void |
2317 | null_file_write (struct gdb_file *file, | |
2318 | const char *buf, | |
2319 | long sizeof_buf) | |
2320 | { | |
2321 | if (file->to_fputs == null_file_fputs) | |
2322 | /* Both the write and fputs methods are null. Discard the | |
2323 | request. */ | |
2324 | return; | |
2325 | else | |
2326 | { | |
2327 | /* The fputs method isn't null, slowly pass the write request | |
2328 | onto that. FYI, this isn't as bad as it may look - the | |
2329 | current (as of 1999-11-07) printf_* function calls fputc and | |
2330 | fputc does exactly the below. By having a write function it | |
2331 | is possible to clean up that code. */ | |
2332 | int i; | |
2333 | char b[2]; | |
2334 | b[1] = '\0'; | |
2335 | for (i = 0; i < sizeof_buf; i++) | |
2336 | { | |
2337 | b[0] = buf[i]; | |
2338 | file->to_fputs (b, file); | |
2339 | } | |
2340 | return; | |
2341 | } | |
2342 | } | |
2343 | ||
ac9a91a7 JM |
2344 | static void |
2345 | null_file_fputs (buf, file) | |
2346 | const char *buf; | |
2347 | struct gdb_file *file; | |
2348 | { | |
11cf8741 JM |
2349 | if (file->to_write == null_file_write) |
2350 | /* Both the write and fputs methods are null. Discard the | |
2351 | request. */ | |
2352 | return; | |
2353 | else | |
2354 | { | |
2355 | /* The write method was implemented, use that. */ | |
2356 | file->to_write (file, buf, strlen (buf)); | |
2357 | } | |
ac9a91a7 JM |
2358 | } |
2359 | ||
2360 | static void | |
2361 | null_file_delete (file) | |
2362 | struct gdb_file *file; | |
2363 | { | |
2364 | return; | |
2365 | } | |
2366 | ||
2367 | void * | |
2368 | gdb_file_data (file) | |
2369 | struct gdb_file *file; | |
2370 | { | |
4ce44c66 JM |
2371 | if (file->magic != &gdb_file_magic) |
2372 | internal_error ("gdb_file_data: bad magic number"); | |
ac9a91a7 JM |
2373 | return file->to_data; |
2374 | } | |
2375 | ||
2376 | void | |
2377 | gdb_flush (file) | |
2378 | struct gdb_file *file; | |
2379 | { | |
2380 | file->to_flush (file); | |
2381 | } | |
2382 | ||
2383 | int | |
2384 | gdb_file_isatty (file) | |
2385 | struct gdb_file *file; | |
2386 | { | |
2387 | return file->to_isatty (file); | |
2388 | } | |
2389 | ||
0f71a2f6 JM |
2390 | void |
2391 | gdb_file_rewind (file) | |
2392 | struct gdb_file *file; | |
2393 | { | |
085dd6e6 | 2394 | file->to_rewind (file); |
0f71a2f6 JM |
2395 | } |
2396 | ||
2397 | void | |
4ce44c66 JM |
2398 | gdb_file_put (struct gdb_file *file, |
2399 | gdb_file_put_method_ftype *write, | |
2400 | void *dest) | |
0f71a2f6 | 2401 | { |
4ce44c66 | 2402 | file->to_put (file, write, dest); |
0f71a2f6 JM |
2403 | } |
2404 | ||
11cf8741 JM |
2405 | void |
2406 | gdb_file_write (struct gdb_file *file, | |
2407 | const char *buf, | |
2408 | long length_buf) | |
2409 | { | |
2410 | file->to_write (file, buf, length_buf); | |
2411 | } | |
2412 | ||
ac9a91a7 JM |
2413 | void |
2414 | fputs_unfiltered (buf, file) | |
2415 | const char *buf; | |
2416 | struct gdb_file *file; | |
2417 | { | |
2418 | file->to_fputs (buf, file); | |
2419 | } | |
2420 | ||
2421 | void | |
2422 | set_gdb_file_flush (file, flush) | |
2423 | struct gdb_file *file; | |
2424 | gdb_file_flush_ftype *flush; | |
2425 | { | |
2426 | file->to_flush = flush; | |
2427 | } | |
2428 | ||
2429 | void | |
2430 | set_gdb_file_isatty (file, isatty) | |
2431 | struct gdb_file *file; | |
2432 | gdb_file_isatty_ftype *isatty; | |
2433 | { | |
2434 | file->to_isatty = isatty; | |
2435 | } | |
2436 | ||
0f71a2f6 JM |
2437 | void |
2438 | set_gdb_file_rewind (file, rewind) | |
2439 | struct gdb_file *file; | |
2440 | gdb_file_rewind_ftype *rewind; | |
2441 | { | |
2442 | file->to_rewind = rewind; | |
2443 | } | |
2444 | ||
2445 | void | |
2446 | set_gdb_file_put (file, put) | |
2447 | struct gdb_file *file; | |
2448 | gdb_file_put_ftype *put; | |
2449 | { | |
2450 | file->to_put = put; | |
2451 | } | |
2452 | ||
11cf8741 JM |
2453 | void |
2454 | set_gdb_file_write (struct gdb_file *file, | |
2455 | gdb_file_write_ftype *write) | |
2456 | { | |
2457 | file->to_write = write; | |
2458 | } | |
2459 | ||
ac9a91a7 JM |
2460 | void |
2461 | set_gdb_file_fputs (file, fputs) | |
2462 | struct gdb_file *file; | |
2463 | gdb_file_fputs_ftype *fputs; | |
2464 | { | |
2465 | file->to_fputs = fputs; | |
2466 | } | |
2467 | ||
2468 | void | |
2469 | set_gdb_file_data (file, data, delete) | |
2470 | struct gdb_file *file; | |
2471 | void *data; | |
2472 | gdb_file_delete_ftype *delete; | |
2473 | { | |
2474 | file->to_data = data; | |
2475 | file->to_delete = delete; | |
c906108c SS |
2476 | } |
2477 | ||
4ce44c66 JM |
2478 | /* gdb_file utility function for converting a ``struct gdb_file'' into |
2479 | a memory buffer''. */ | |
2480 | ||
2481 | struct accumulated_gdb_file | |
2482 | { | |
2483 | char *buffer; | |
2484 | long length; | |
2485 | }; | |
2486 | ||
2487 | static void | |
2488 | do_gdb_file_xstrdup (void *context, const char *buffer, long length) | |
2489 | { | |
2490 | struct accumulated_gdb_file *acc = context; | |
2491 | if (acc->buffer == NULL) | |
2492 | acc->buffer = xmalloc (length + 1); | |
2493 | else | |
2494 | acc->buffer = xrealloc (acc->buffer, acc->length + length + 1); | |
2495 | memcpy (acc->buffer + acc->length, buffer, length); | |
2496 | acc->length += length; | |
2497 | acc->buffer[acc->length] = '\0'; | |
2498 | } | |
2499 | ||
2500 | char * | |
2501 | gdb_file_xstrdup (struct gdb_file *file, | |
2502 | long *length) | |
2503 | { | |
2504 | struct accumulated_gdb_file acc; | |
2505 | acc.buffer = NULL; | |
2506 | acc.length = 0; | |
2507 | gdb_file_put (file, do_gdb_file_xstrdup, &acc); | |
2508 | if (acc.buffer == NULL) | |
2509 | acc.buffer = xstrdup (""); | |
2510 | *length = acc.length; | |
2511 | return acc.buffer; | |
2512 | } | |
2513 | ||
2514 | ||
c906108c SS |
2515 | /* Like fputs but if FILTER is true, pause after every screenful. |
2516 | ||
2517 | Regardless of FILTER can wrap at points other than the final | |
2518 | character of a line. | |
2519 | ||
2520 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2521 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2522 | anything. | |
2523 | ||
2524 | Note that a longjmp to top level may occur in this routine (only if | |
2525 | FILTER is true) (since prompt_for_continue may do so) so this | |
2526 | routine should not be called when cleanups are not in place. */ | |
2527 | ||
2528 | static void | |
2529 | fputs_maybe_filtered (linebuffer, stream, filter) | |
2530 | const char *linebuffer; | |
2531 | GDB_FILE *stream; | |
2532 | int filter; | |
2533 | { | |
2534 | const char *lineptr; | |
2535 | ||
2536 | if (linebuffer == 0) | |
2537 | return; | |
2538 | ||
2539 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 2540 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 2541 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
2542 | { |
2543 | fputs_unfiltered (linebuffer, stream); | |
2544 | return; | |
2545 | } | |
2546 | ||
2547 | /* Go through and output each character. Show line extension | |
2548 | when this is necessary; prompt user for new page when this is | |
2549 | necessary. */ | |
c5aa993b | 2550 | |
c906108c SS |
2551 | lineptr = linebuffer; |
2552 | while (*lineptr) | |
2553 | { | |
2554 | /* Possible new page. */ | |
2555 | if (filter && | |
2556 | (lines_printed >= lines_per_page - 1)) | |
2557 | prompt_for_continue (); | |
2558 | ||
2559 | while (*lineptr && *lineptr != '\n') | |
2560 | { | |
2561 | /* Print a single line. */ | |
2562 | if (*lineptr == '\t') | |
2563 | { | |
2564 | if (wrap_column) | |
2565 | *wrap_pointer++ = '\t'; | |
2566 | else | |
2567 | fputc_unfiltered ('\t', stream); | |
2568 | /* Shifting right by 3 produces the number of tab stops | |
2569 | we have already passed, and then adding one and | |
c5aa993b | 2570 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2571 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2572 | lineptr++; | |
2573 | } | |
2574 | else | |
2575 | { | |
2576 | if (wrap_column) | |
2577 | *wrap_pointer++ = *lineptr; | |
2578 | else | |
c5aa993b | 2579 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2580 | chars_printed++; |
2581 | lineptr++; | |
2582 | } | |
c5aa993b | 2583 | |
c906108c SS |
2584 | if (chars_printed >= chars_per_line) |
2585 | { | |
2586 | unsigned int save_chars = chars_printed; | |
2587 | ||
2588 | chars_printed = 0; | |
2589 | lines_printed++; | |
2590 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2591 | if chars_per_line is right, we probably just overflowed |
2592 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2593 | if (wrap_column) |
2594 | fputc_unfiltered ('\n', stream); | |
2595 | ||
2596 | /* Possible new page. */ | |
2597 | if (lines_printed >= lines_per_page - 1) | |
2598 | prompt_for_continue (); | |
2599 | ||
2600 | /* Now output indentation and wrapped string */ | |
2601 | if (wrap_column) | |
2602 | { | |
2603 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
2604 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
2605 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
2606 | /* FIXME, this strlen is what prevents wrap_indent from |
2607 | containing tabs. However, if we recurse to print it | |
2608 | and count its chars, we risk trouble if wrap_indent is | |
2609 | longer than (the user settable) chars_per_line. | |
2610 | Note also that this can set chars_printed > chars_per_line | |
2611 | if we are printing a long string. */ | |
2612 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2613 | + (save_chars - wrap_column); |
c906108c SS |
2614 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2615 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2616 | wrap_column = 0; /* And disable fancy wrap */ |
2617 | } | |
c906108c SS |
2618 | } |
2619 | } | |
2620 | ||
2621 | if (*lineptr == '\n') | |
2622 | { | |
2623 | chars_printed = 0; | |
c5aa993b | 2624 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2625 | lines_printed++; |
2626 | fputc_unfiltered ('\n', stream); | |
2627 | lineptr++; | |
2628 | } | |
2629 | } | |
2630 | } | |
2631 | ||
2632 | void | |
2633 | fputs_filtered (linebuffer, stream) | |
2634 | const char *linebuffer; | |
2635 | GDB_FILE *stream; | |
2636 | { | |
2637 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2638 | } | |
2639 | ||
2640 | int | |
2641 | putchar_unfiltered (c) | |
2642 | int c; | |
2643 | { | |
11cf8741 JM |
2644 | char buf = c; |
2645 | gdb_file_write (gdb_stdout, &buf, 1); | |
c906108c SS |
2646 | return c; |
2647 | } | |
2648 | ||
2649 | int | |
2650 | fputc_unfiltered (c, stream) | |
2651 | int c; | |
c5aa993b | 2652 | GDB_FILE *stream; |
c906108c | 2653 | { |
11cf8741 JM |
2654 | char buf = c; |
2655 | gdb_file_write (stream, &buf, 1); | |
c906108c SS |
2656 | return c; |
2657 | } | |
2658 | ||
2659 | int | |
2660 | fputc_filtered (c, stream) | |
2661 | int c; | |
c5aa993b | 2662 | GDB_FILE *stream; |
c906108c SS |
2663 | { |
2664 | char buf[2]; | |
2665 | ||
2666 | buf[0] = c; | |
2667 | buf[1] = 0; | |
2668 | fputs_filtered (buf, stream); | |
2669 | return c; | |
2670 | } | |
2671 | ||
2672 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2673 | characters in printable fashion. */ | |
2674 | ||
2675 | void | |
2676 | puts_debug (prefix, string, suffix) | |
2677 | char *prefix; | |
2678 | char *string; | |
2679 | char *suffix; | |
2680 | { | |
2681 | int ch; | |
2682 | ||
2683 | /* Print prefix and suffix after each line. */ | |
2684 | static int new_line = 1; | |
2685 | static int return_p = 0; | |
2686 | static char *prev_prefix = ""; | |
2687 | static char *prev_suffix = ""; | |
2688 | ||
2689 | if (*string == '\n') | |
2690 | return_p = 0; | |
2691 | ||
2692 | /* If the prefix is changing, print the previous suffix, a new line, | |
2693 | and the new prefix. */ | |
c5aa993b | 2694 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2695 | { |
9846de1b JM |
2696 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2697 | fputs_unfiltered ("\n", gdb_stdlog); | |
2698 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2699 | } |
2700 | ||
2701 | /* Print prefix if we printed a newline during the previous call. */ | |
2702 | if (new_line) | |
2703 | { | |
2704 | new_line = 0; | |
9846de1b | 2705 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2706 | } |
2707 | ||
2708 | prev_prefix = prefix; | |
2709 | prev_suffix = suffix; | |
2710 | ||
2711 | /* Output characters in a printable format. */ | |
2712 | while ((ch = *string++) != '\0') | |
2713 | { | |
2714 | switch (ch) | |
c5aa993b | 2715 | { |
c906108c SS |
2716 | default: |
2717 | if (isprint (ch)) | |
9846de1b | 2718 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2719 | |
2720 | else | |
9846de1b | 2721 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2722 | break; |
2723 | ||
c5aa993b JM |
2724 | case '\\': |
2725 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2726 | break; | |
2727 | case '\b': | |
2728 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2729 | break; | |
2730 | case '\f': | |
2731 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2732 | break; | |
2733 | case '\n': | |
2734 | new_line = 1; | |
2735 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2736 | break; | |
2737 | case '\r': | |
2738 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2739 | break; | |
2740 | case '\t': | |
2741 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2742 | break; | |
2743 | case '\v': | |
2744 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2745 | break; | |
2746 | } | |
c906108c SS |
2747 | |
2748 | return_p = ch == '\r'; | |
2749 | } | |
2750 | ||
2751 | /* Print suffix if we printed a newline. */ | |
2752 | if (new_line) | |
2753 | { | |
9846de1b JM |
2754 | fputs_unfiltered (suffix, gdb_stdlog); |
2755 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2756 | } |
2757 | } | |
2758 | ||
2759 | ||
2760 | /* Print a variable number of ARGS using format FORMAT. If this | |
2761 | information is going to put the amount written (since the last call | |
2762 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2763 | call prompt_for_continue to get the users permision to continue. | |
2764 | ||
2765 | Unlike fprintf, this function does not return a value. | |
2766 | ||
2767 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2768 | fprintf (takes a stream to write on), and printf (the usual). | |
2769 | ||
2770 | Note also that a longjmp to top level may occur in this routine | |
2771 | (since prompt_for_continue may do so) so this routine should not be | |
2772 | called when cleanups are not in place. */ | |
2773 | ||
2774 | static void | |
2775 | vfprintf_maybe_filtered (stream, format, args, filter) | |
2776 | GDB_FILE *stream; | |
2777 | const char *format; | |
2778 | va_list args; | |
2779 | int filter; | |
2780 | { | |
2781 | char *linebuffer; | |
2782 | struct cleanup *old_cleanups; | |
2783 | ||
2784 | vasprintf (&linebuffer, format, args); | |
2785 | if (linebuffer == NULL) | |
2786 | { | |
2787 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
2788 | exit (1); | |
2789 | } | |
2790 | old_cleanups = make_cleanup (free, linebuffer); | |
2791 | fputs_maybe_filtered (linebuffer, stream, filter); | |
2792 | do_cleanups (old_cleanups); | |
2793 | } | |
2794 | ||
2795 | ||
2796 | void | |
2797 | vfprintf_filtered (stream, format, args) | |
2798 | GDB_FILE *stream; | |
2799 | const char *format; | |
2800 | va_list args; | |
2801 | { | |
2802 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2803 | } | |
2804 | ||
2805 | void | |
2806 | vfprintf_unfiltered (stream, format, args) | |
2807 | GDB_FILE *stream; | |
2808 | const char *format; | |
2809 | va_list args; | |
2810 | { | |
2811 | char *linebuffer; | |
2812 | struct cleanup *old_cleanups; | |
2813 | ||
2814 | vasprintf (&linebuffer, format, args); | |
2815 | if (linebuffer == NULL) | |
2816 | { | |
2817 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
2818 | exit (1); | |
2819 | } | |
2820 | old_cleanups = make_cleanup (free, linebuffer); | |
2821 | fputs_unfiltered (linebuffer, stream); | |
2822 | do_cleanups (old_cleanups); | |
2823 | } | |
2824 | ||
2825 | void | |
2826 | vprintf_filtered (format, args) | |
2827 | const char *format; | |
2828 | va_list args; | |
2829 | { | |
2830 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2831 | } | |
2832 | ||
2833 | void | |
2834 | vprintf_unfiltered (format, args) | |
2835 | const char *format; | |
2836 | va_list args; | |
2837 | { | |
2838 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2839 | } | |
2840 | ||
c906108c | 2841 | void |
c5aa993b | 2842 | fprintf_filtered (GDB_FILE * stream, const char *format,...) |
c906108c SS |
2843 | { |
2844 | va_list args; | |
c906108c | 2845 | va_start (args, format); |
c906108c SS |
2846 | vfprintf_filtered (stream, format, args); |
2847 | va_end (args); | |
2848 | } | |
2849 | ||
c906108c | 2850 | void |
c5aa993b | 2851 | fprintf_unfiltered (GDB_FILE * stream, const char *format,...) |
c906108c SS |
2852 | { |
2853 | va_list args; | |
c906108c | 2854 | va_start (args, format); |
c906108c SS |
2855 | vfprintf_unfiltered (stream, format, args); |
2856 | va_end (args); | |
2857 | } | |
2858 | ||
2859 | /* Like fprintf_filtered, but prints its result indented. | |
2860 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2861 | ||
c906108c | 2862 | void |
c5aa993b | 2863 | fprintfi_filtered (int spaces, GDB_FILE * stream, const char *format,...) |
c906108c SS |
2864 | { |
2865 | va_list args; | |
c906108c | 2866 | va_start (args, format); |
c906108c SS |
2867 | print_spaces_filtered (spaces, stream); |
2868 | ||
2869 | vfprintf_filtered (stream, format, args); | |
2870 | va_end (args); | |
2871 | } | |
2872 | ||
2873 | ||
c906108c | 2874 | void |
c5aa993b | 2875 | printf_filtered (const char *format,...) |
c906108c SS |
2876 | { |
2877 | va_list args; | |
c906108c | 2878 | va_start (args, format); |
c906108c SS |
2879 | vfprintf_filtered (gdb_stdout, format, args); |
2880 | va_end (args); | |
2881 | } | |
2882 | ||
2883 | ||
c906108c | 2884 | void |
c5aa993b | 2885 | printf_unfiltered (const char *format,...) |
c906108c SS |
2886 | { |
2887 | va_list args; | |
c906108c | 2888 | va_start (args, format); |
c906108c SS |
2889 | vfprintf_unfiltered (gdb_stdout, format, args); |
2890 | va_end (args); | |
2891 | } | |
2892 | ||
2893 | /* Like printf_filtered, but prints it's result indented. | |
2894 | Called as printfi_filtered (spaces, format, ...); */ | |
2895 | ||
c906108c | 2896 | void |
c5aa993b | 2897 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2898 | { |
2899 | va_list args; | |
c906108c | 2900 | va_start (args, format); |
c906108c SS |
2901 | print_spaces_filtered (spaces, gdb_stdout); |
2902 | vfprintf_filtered (gdb_stdout, format, args); | |
2903 | va_end (args); | |
2904 | } | |
2905 | ||
2906 | /* Easy -- but watch out! | |
2907 | ||
2908 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2909 | This one doesn't, and had better not! */ | |
2910 | ||
2911 | void | |
2912 | puts_filtered (string) | |
2913 | const char *string; | |
2914 | { | |
2915 | fputs_filtered (string, gdb_stdout); | |
2916 | } | |
2917 | ||
2918 | void | |
2919 | puts_unfiltered (string) | |
2920 | const char *string; | |
2921 | { | |
2922 | fputs_unfiltered (string, gdb_stdout); | |
2923 | } | |
2924 | ||
2925 | /* Return a pointer to N spaces and a null. The pointer is good | |
2926 | until the next call to here. */ | |
2927 | char * | |
2928 | n_spaces (n) | |
2929 | int n; | |
2930 | { | |
392a587b JM |
2931 | char *t; |
2932 | static char *spaces = 0; | |
2933 | static int max_spaces = -1; | |
c906108c SS |
2934 | |
2935 | if (n > max_spaces) | |
2936 | { | |
2937 | if (spaces) | |
2938 | free (spaces); | |
c5aa993b JM |
2939 | spaces = (char *) xmalloc (n + 1); |
2940 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2941 | *--t = ' '; |
2942 | spaces[n] = '\0'; | |
2943 | max_spaces = n; | |
2944 | } | |
2945 | ||
2946 | return spaces + max_spaces - n; | |
2947 | } | |
2948 | ||
2949 | /* Print N spaces. */ | |
2950 | void | |
2951 | print_spaces_filtered (n, stream) | |
2952 | int n; | |
2953 | GDB_FILE *stream; | |
2954 | { | |
2955 | fputs_filtered (n_spaces (n), stream); | |
2956 | } | |
2957 | \f | |
2958 | /* C++ demangler stuff. */ | |
2959 | ||
2960 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2961 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2962 | If the name is not mangled, or the language for the name is unknown, or | |
2963 | demangling is off, the name is printed in its "raw" form. */ | |
2964 | ||
2965 | void | |
2966 | fprintf_symbol_filtered (stream, name, lang, arg_mode) | |
2967 | GDB_FILE *stream; | |
2968 | char *name; | |
2969 | enum language lang; | |
2970 | int arg_mode; | |
2971 | { | |
2972 | char *demangled; | |
2973 | ||
2974 | if (name != NULL) | |
2975 | { | |
2976 | /* If user wants to see raw output, no problem. */ | |
2977 | if (!demangle) | |
2978 | { | |
2979 | fputs_filtered (name, stream); | |
2980 | } | |
2981 | else | |
2982 | { | |
2983 | switch (lang) | |
2984 | { | |
2985 | case language_cplus: | |
2986 | demangled = cplus_demangle (name, arg_mode); | |
2987 | break; | |
2988 | case language_java: | |
2989 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
2990 | break; | |
2991 | case language_chill: | |
2992 | demangled = chill_demangle (name); | |
2993 | break; | |
2994 | default: | |
2995 | demangled = NULL; | |
2996 | break; | |
2997 | } | |
2998 | fputs_filtered (demangled ? demangled : name, stream); | |
2999 | if (demangled != NULL) | |
3000 | { | |
3001 | free (demangled); | |
3002 | } | |
3003 | } | |
3004 | } | |
3005 | } | |
3006 | ||
3007 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
3008 | differences in whitespace. Returns 0 if they match, non-zero if they | |
3009 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 3010 | |
c906108c SS |
3011 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
3012 | This "feature" is useful when searching for matching C++ function names | |
3013 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
3014 | function). */ | |
3015 | ||
3016 | int | |
3017 | strcmp_iw (string1, string2) | |
3018 | const char *string1; | |
3019 | const char *string2; | |
3020 | { | |
3021 | while ((*string1 != '\0') && (*string2 != '\0')) | |
3022 | { | |
3023 | while (isspace (*string1)) | |
3024 | { | |
3025 | string1++; | |
3026 | } | |
3027 | while (isspace (*string2)) | |
3028 | { | |
3029 | string2++; | |
3030 | } | |
3031 | if (*string1 != *string2) | |
3032 | { | |
3033 | break; | |
3034 | } | |
3035 | if (*string1 != '\0') | |
3036 | { | |
3037 | string1++; | |
3038 | string2++; | |
3039 | } | |
3040 | } | |
3041 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
3042 | } | |
c906108c | 3043 | \f |
c5aa993b | 3044 | |
c906108c | 3045 | /* |
c5aa993b JM |
3046 | ** subset_compare() |
3047 | ** Answer whether string_to_compare is a full or partial match to | |
3048 | ** template_string. The partial match must be in sequence starting | |
3049 | ** at index 0. | |
3050 | */ | |
c906108c | 3051 | int |
7a292a7a | 3052 | subset_compare (string_to_compare, template_string) |
c5aa993b JM |
3053 | char *string_to_compare; |
3054 | char *template_string; | |
7a292a7a SS |
3055 | { |
3056 | int match; | |
c5aa993b JM |
3057 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
3058 | strlen (string_to_compare) <= strlen (template_string)) | |
3059 | match = (strncmp (template_string, | |
3060 | string_to_compare, | |
3061 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
3062 | else |
3063 | match = 0; | |
3064 | return match; | |
3065 | } | |
c906108c SS |
3066 | |
3067 | ||
7a292a7a SS |
3068 | static void pagination_on_command PARAMS ((char *arg, int from_tty)); |
3069 | static void | |
3070 | pagination_on_command (arg, from_tty) | |
c5aa993b JM |
3071 | char *arg; |
3072 | int from_tty; | |
c906108c SS |
3073 | { |
3074 | pagination_enabled = 1; | |
3075 | } | |
3076 | ||
7a292a7a SS |
3077 | static void pagination_on_command PARAMS ((char *arg, int from_tty)); |
3078 | static void | |
3079 | pagination_off_command (arg, from_tty) | |
c5aa993b JM |
3080 | char *arg; |
3081 | int from_tty; | |
c906108c SS |
3082 | { |
3083 | pagination_enabled = 0; | |
3084 | } | |
c906108c | 3085 | \f |
c5aa993b | 3086 | |
c906108c SS |
3087 | void |
3088 | initialize_utils () | |
3089 | { | |
3090 | struct cmd_list_element *c; | |
3091 | ||
c5aa993b JM |
3092 | c = add_set_cmd ("width", class_support, var_uinteger, |
3093 | (char *) &chars_per_line, | |
3094 | "Set number of characters gdb thinks are in a line.", | |
3095 | &setlist); | |
c906108c SS |
3096 | add_show_from_set (c, &showlist); |
3097 | c->function.sfunc = set_width_command; | |
3098 | ||
3099 | add_show_from_set | |
3100 | (add_set_cmd ("height", class_support, | |
c5aa993b | 3101 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
3102 | "Set number of lines gdb thinks are in a page.", &setlist), |
3103 | &showlist); | |
c5aa993b | 3104 | |
c906108c SS |
3105 | init_page_info (); |
3106 | ||
3107 | /* If the output is not a terminal, don't paginate it. */ | |
3108 | if (!GDB_FILE_ISATTY (gdb_stdout)) | |
3109 | lines_per_page = UINT_MAX; | |
3110 | ||
c5aa993b | 3111 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
3112 | |
3113 | add_show_from_set | |
c5aa993b JM |
3114 | (add_set_cmd ("demangle", class_support, var_boolean, |
3115 | (char *) &demangle, | |
3116 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
3117 | &setprintlist), |
3118 | &showprintlist); | |
3119 | ||
3120 | add_show_from_set | |
3121 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 3122 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
3123 | "Set state of pagination.", &setlist), |
3124 | &showlist); | |
3125 | if (xdb_commands) | |
3126 | { | |
c5aa993b JM |
3127 | add_com ("am", class_support, pagination_on_command, |
3128 | "Enable pagination"); | |
3129 | add_com ("sm", class_support, pagination_off_command, | |
3130 | "Disable pagination"); | |
c906108c SS |
3131 | } |
3132 | ||
3133 | add_show_from_set | |
c5aa993b JM |
3134 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
3135 | (char *) &sevenbit_strings, | |
3136 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
3137 | &setprintlist), |
3138 | &showprintlist); | |
3139 | ||
3140 | add_show_from_set | |
c5aa993b JM |
3141 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
3142 | (char *) &asm_demangle, | |
3143 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
3144 | &setprintlist), |
3145 | &showprintlist); | |
3146 | } | |
3147 | ||
3148 | /* Machine specific function to handle SIGWINCH signal. */ | |
3149 | ||
3150 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 3151 | SIGWINCH_HANDLER_BODY |
c906108c SS |
3152 | #endif |
3153 | \f | |
3154 | /* Support for converting target fp numbers into host DOUBLEST format. */ | |
3155 | ||
3156 | /* XXX - This code should really be in libiberty/floatformat.c, however | |
3157 | configuration issues with libiberty made this very difficult to do in the | |
3158 | available time. */ | |
3159 | ||
3160 | #include "floatformat.h" | |
3161 | #include <math.h> /* ldexp */ | |
3162 | ||
3163 | /* The odds that CHAR_BIT will be anything but 8 are low enough that I'm not | |
3164 | going to bother with trying to muck around with whether it is defined in | |
3165 | a system header, what we do if not, etc. */ | |
3166 | #define FLOATFORMAT_CHAR_BIT 8 | |
3167 | ||
3168 | static unsigned long get_field PARAMS ((unsigned char *, | |
3169 | enum floatformat_byteorders, | |
3170 | unsigned int, | |
3171 | unsigned int, | |
3172 | unsigned int)); | |
3173 | ||
3174 | /* Extract a field which starts at START and is LEN bytes long. DATA and | |
3175 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
3176 | static unsigned long | |
3177 | get_field (data, order, total_len, start, len) | |
3178 | unsigned char *data; | |
3179 | enum floatformat_byteorders order; | |
3180 | unsigned int total_len; | |
3181 | unsigned int start; | |
3182 | unsigned int len; | |
3183 | { | |
3184 | unsigned long result; | |
3185 | unsigned int cur_byte; | |
3186 | int cur_bitshift; | |
3187 | ||
3188 | /* Start at the least significant part of the field. */ | |
3189 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
3190 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3191 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
3192 | cur_bitshift = | |
3193 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
3194 | result = *(data + cur_byte) >> (-cur_bitshift); | |
3195 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3196 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3197 | ++cur_byte; | |
3198 | else | |
3199 | --cur_byte; | |
3200 | ||
3201 | /* Move towards the most significant part of the field. */ | |
3202 | while (cur_bitshift < len) | |
3203 | { | |
3204 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
3205 | /* This is the last byte; zero out the bits which are not part of | |
3206 | this field. */ | |
3207 | result |= | |
3208 | (*(data + cur_byte) & ((1 << (len - cur_bitshift)) - 1)) | |
c5aa993b | 3209 | << cur_bitshift; |
c906108c SS |
3210 | else |
3211 | result |= *(data + cur_byte) << cur_bitshift; | |
3212 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3213 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3214 | ++cur_byte; | |
3215 | else | |
3216 | --cur_byte; | |
3217 | } | |
3218 | return result; | |
3219 | } | |
c5aa993b | 3220 | |
c906108c SS |
3221 | /* Convert from FMT to a DOUBLEST. |
3222 | FROM is the address of the extended float. | |
3223 | Store the DOUBLEST in *TO. */ | |
3224 | ||
3225 | void | |
3226 | floatformat_to_doublest (fmt, from, to) | |
3227 | const struct floatformat *fmt; | |
3228 | char *from; | |
3229 | DOUBLEST *to; | |
3230 | { | |
c5aa993b | 3231 | unsigned char *ufrom = (unsigned char *) from; |
c906108c SS |
3232 | DOUBLEST dto; |
3233 | long exponent; | |
3234 | unsigned long mant; | |
3235 | unsigned int mant_bits, mant_off; | |
3236 | int mant_bits_left; | |
3237 | int special_exponent; /* It's a NaN, denorm or zero */ | |
3238 | ||
3239 | /* If the mantissa bits are not contiguous from one end of the | |
3240 | mantissa to the other, we need to make a private copy of the | |
3241 | source bytes that is in the right order since the unpacking | |
3242 | algorithm assumes that the bits are contiguous. | |
3243 | ||
3244 | Swap the bytes individually rather than accessing them through | |
3245 | "long *" since we have no guarantee that they start on a long | |
3246 | alignment, and also sizeof(long) for the host could be different | |
3247 | than sizeof(long) for the target. FIXME: Assumes sizeof(long) | |
3248 | for the target is 4. */ | |
3249 | ||
c5aa993b | 3250 | if (fmt->byteorder == floatformat_littlebyte_bigword) |
c906108c SS |
3251 | { |
3252 | static unsigned char *newfrom; | |
3253 | unsigned char *swapin, *swapout; | |
3254 | int longswaps; | |
3255 | ||
c5aa993b | 3256 | longswaps = fmt->totalsize / FLOATFORMAT_CHAR_BIT; |
c906108c | 3257 | longswaps >>= 3; |
c5aa993b | 3258 | |
c906108c SS |
3259 | if (newfrom == NULL) |
3260 | { | |
c5aa993b | 3261 | newfrom = (unsigned char *) xmalloc (fmt->totalsize); |
c906108c SS |
3262 | } |
3263 | swapout = newfrom; | |
3264 | swapin = ufrom; | |
3265 | ufrom = newfrom; | |
3266 | while (longswaps-- > 0) | |
3267 | { | |
3268 | /* This is ugly, but efficient */ | |
3269 | *swapout++ = swapin[4]; | |
3270 | *swapout++ = swapin[5]; | |
3271 | *swapout++ = swapin[6]; | |
3272 | *swapout++ = swapin[7]; | |
3273 | *swapout++ = swapin[0]; | |
3274 | *swapout++ = swapin[1]; | |
3275 | *swapout++ = swapin[2]; | |
3276 | *swapout++ = swapin[3]; | |
3277 | swapin += 8; | |
3278 | } | |
3279 | } | |
3280 | ||
3281 | exponent = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
3282 | fmt->exp_start, fmt->exp_len); | |
3283 | /* Note that if exponent indicates a NaN, we can't really do anything useful | |
3284 | (not knowing if the host has NaN's, or how to build one). So it will | |
3285 | end up as an infinity or something close; that is OK. */ | |
3286 | ||
3287 | mant_bits_left = fmt->man_len; | |
3288 | mant_off = fmt->man_start; | |
3289 | dto = 0.0; | |
3290 | ||
3291 | special_exponent = exponent == 0 || exponent == fmt->exp_nan; | |
3292 | ||
11cf8741 JM |
3293 | /* Don't bias NaNs. Use minimum exponent for denorms. For simplicity, |
3294 | we don't check for zero as the exponent doesn't matter. */ | |
c906108c SS |
3295 | if (!special_exponent) |
3296 | exponent -= fmt->exp_bias; | |
11cf8741 JM |
3297 | else if (exponent == 0) |
3298 | exponent = 1 - fmt->exp_bias; | |
c906108c SS |
3299 | |
3300 | /* Build the result algebraically. Might go infinite, underflow, etc; | |
3301 | who cares. */ | |
3302 | ||
3303 | /* If this format uses a hidden bit, explicitly add it in now. Otherwise, | |
3304 | increment the exponent by one to account for the integer bit. */ | |
3305 | ||
3306 | if (!special_exponent) | |
7a292a7a SS |
3307 | { |
3308 | if (fmt->intbit == floatformat_intbit_no) | |
3309 | dto = ldexp (1.0, exponent); | |
3310 | else | |
3311 | exponent++; | |
3312 | } | |
c906108c SS |
3313 | |
3314 | while (mant_bits_left > 0) | |
3315 | { | |
3316 | mant_bits = min (mant_bits_left, 32); | |
3317 | ||
3318 | mant = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
c5aa993b | 3319 | mant_off, mant_bits); |
c906108c | 3320 | |
c5aa993b | 3321 | dto += ldexp ((double) mant, exponent - mant_bits); |
c906108c SS |
3322 | exponent -= mant_bits; |
3323 | mant_off += mant_bits; | |
3324 | mant_bits_left -= mant_bits; | |
3325 | } | |
3326 | ||
3327 | /* Negate it if negative. */ | |
3328 | if (get_field (ufrom, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1)) | |
3329 | dto = -dto; | |
3330 | *to = dto; | |
3331 | } | |
3332 | \f | |
3333 | static void put_field PARAMS ((unsigned char *, enum floatformat_byteorders, | |
3334 | unsigned int, | |
3335 | unsigned int, | |
3336 | unsigned int, | |
3337 | unsigned long)); | |
3338 | ||
3339 | /* Set a field which starts at START and is LEN bytes long. DATA and | |
3340 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
3341 | static void | |
3342 | put_field (data, order, total_len, start, len, stuff_to_put) | |
3343 | unsigned char *data; | |
3344 | enum floatformat_byteorders order; | |
3345 | unsigned int total_len; | |
3346 | unsigned int start; | |
3347 | unsigned int len; | |
3348 | unsigned long stuff_to_put; | |
3349 | { | |
3350 | unsigned int cur_byte; | |
3351 | int cur_bitshift; | |
3352 | ||
3353 | /* Start at the least significant part of the field. */ | |
3354 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
3355 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3356 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
3357 | cur_bitshift = | |
3358 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
3359 | *(data + cur_byte) &= | |
3360 | ~(((1 << ((start + len) % FLOATFORMAT_CHAR_BIT)) - 1) << (-cur_bitshift)); | |
3361 | *(data + cur_byte) |= | |
3362 | (stuff_to_put & ((1 << FLOATFORMAT_CHAR_BIT) - 1)) << (-cur_bitshift); | |
3363 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3364 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3365 | ++cur_byte; | |
3366 | else | |
3367 | --cur_byte; | |
3368 | ||
3369 | /* Move towards the most significant part of the field. */ | |
3370 | while (cur_bitshift < len) | |
3371 | { | |
3372 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
3373 | { | |
3374 | /* This is the last byte. */ | |
3375 | *(data + cur_byte) &= | |
3376 | ~((1 << (len - cur_bitshift)) - 1); | |
3377 | *(data + cur_byte) |= (stuff_to_put >> cur_bitshift); | |
3378 | } | |
3379 | else | |
3380 | *(data + cur_byte) = ((stuff_to_put >> cur_bitshift) | |
3381 | & ((1 << FLOATFORMAT_CHAR_BIT) - 1)); | |
3382 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3383 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3384 | ++cur_byte; | |
3385 | else | |
3386 | --cur_byte; | |
3387 | } | |
3388 | } | |
3389 | ||
3390 | #ifdef HAVE_LONG_DOUBLE | |
3391 | /* Return the fractional part of VALUE, and put the exponent of VALUE in *EPTR. | |
3392 | The range of the returned value is >= 0.5 and < 1.0. This is equivalent to | |
3393 | frexp, but operates on the long double data type. */ | |
3394 | ||
3395 | static long double ldfrexp PARAMS ((long double value, int *eptr)); | |
3396 | ||
3397 | static long double | |
3398 | ldfrexp (value, eptr) | |
3399 | long double value; | |
3400 | int *eptr; | |
3401 | { | |
3402 | long double tmp; | |
3403 | int exp; | |
3404 | ||
3405 | /* Unfortunately, there are no portable functions for extracting the exponent | |
3406 | of a long double, so we have to do it iteratively by multiplying or dividing | |
3407 | by two until the fraction is between 0.5 and 1.0. */ | |
3408 | ||
3409 | if (value < 0.0l) | |
3410 | value = -value; | |
3411 | ||
3412 | tmp = 1.0l; | |
3413 | exp = 0; | |
3414 | ||
3415 | if (value >= tmp) /* Value >= 1.0 */ | |
3416 | while (value >= tmp) | |
3417 | { | |
3418 | tmp *= 2.0l; | |
3419 | exp++; | |
3420 | } | |
3421 | else if (value != 0.0l) /* Value < 1.0 and > 0.0 */ | |
3422 | { | |
3423 | while (value < tmp) | |
3424 | { | |
3425 | tmp /= 2.0l; | |
3426 | exp--; | |
3427 | } | |
3428 | tmp *= 2.0l; | |
3429 | exp++; | |
3430 | } | |
3431 | ||
3432 | *eptr = exp; | |
c5aa993b | 3433 | return value / tmp; |
c906108c SS |
3434 | } |
3435 | #endif /* HAVE_LONG_DOUBLE */ | |
3436 | ||
3437 | ||
3438 | /* The converse: convert the DOUBLEST *FROM to an extended float | |
3439 | and store where TO points. Neither FROM nor TO have any alignment | |
3440 | restrictions. */ | |
3441 | ||
3442 | void | |
3443 | floatformat_from_doublest (fmt, from, to) | |
3444 | CONST struct floatformat *fmt; | |
3445 | DOUBLEST *from; | |
3446 | char *to; | |
3447 | { | |
3448 | DOUBLEST dfrom; | |
3449 | int exponent; | |
3450 | DOUBLEST mant; | |
3451 | unsigned int mant_bits, mant_off; | |
3452 | int mant_bits_left; | |
c5aa993b | 3453 | unsigned char *uto = (unsigned char *) to; |
c906108c SS |
3454 | |
3455 | memcpy (&dfrom, from, sizeof (dfrom)); | |
3456 | memset (uto, 0, fmt->totalsize / FLOATFORMAT_CHAR_BIT); | |
3457 | if (dfrom == 0) | |
3458 | return; /* Result is zero */ | |
3459 | if (dfrom != dfrom) /* Result is NaN */ | |
3460 | { | |
3461 | /* From is NaN */ | |
3462 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, | |
3463 | fmt->exp_len, fmt->exp_nan); | |
3464 | /* Be sure it's not infinity, but NaN value is irrel */ | |
3465 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->man_start, | |
3466 | 32, 1); | |
3467 | return; | |
3468 | } | |
3469 | ||
3470 | /* If negative, set the sign bit. */ | |
3471 | if (dfrom < 0) | |
3472 | { | |
3473 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1, 1); | |
3474 | dfrom = -dfrom; | |
3475 | } | |
3476 | ||
3477 | if (dfrom + dfrom == dfrom && dfrom != 0.0) /* Result is Infinity */ | |
3478 | { | |
3479 | /* Infinity exponent is same as NaN's. */ | |
3480 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, | |
3481 | fmt->exp_len, fmt->exp_nan); | |
3482 | /* Infinity mantissa is all zeroes. */ | |
3483 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->man_start, | |
3484 | fmt->man_len, 0); | |
3485 | return; | |
3486 | } | |
3487 | ||
3488 | #ifdef HAVE_LONG_DOUBLE | |
3489 | mant = ldfrexp (dfrom, &exponent); | |
3490 | #else | |
3491 | mant = frexp (dfrom, &exponent); | |
3492 | #endif | |
3493 | ||
3494 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, fmt->exp_len, | |
3495 | exponent + fmt->exp_bias - 1); | |
3496 | ||
3497 | mant_bits_left = fmt->man_len; | |
3498 | mant_off = fmt->man_start; | |
3499 | while (mant_bits_left > 0) | |
3500 | { | |
3501 | unsigned long mant_long; | |
3502 | mant_bits = mant_bits_left < 32 ? mant_bits_left : 32; | |
3503 | ||
3504 | mant *= 4294967296.0; | |
c5aa993b | 3505 | mant_long = (unsigned long) mant; |
c906108c SS |
3506 | mant -= mant_long; |
3507 | ||
3508 | /* If the integer bit is implicit, then we need to discard it. | |
c5aa993b JM |
3509 | If we are discarding a zero, we should be (but are not) creating |
3510 | a denormalized number which means adjusting the exponent | |
3511 | (I think). */ | |
c906108c SS |
3512 | if (mant_bits_left == fmt->man_len |
3513 | && fmt->intbit == floatformat_intbit_no) | |
3514 | { | |
3515 | mant_long <<= 1; | |
3516 | mant_bits -= 1; | |
3517 | } | |
3518 | ||
3519 | if (mant_bits < 32) | |
3520 | { | |
3521 | /* The bits we want are in the most significant MANT_BITS bits of | |
3522 | mant_long. Move them to the least significant. */ | |
3523 | mant_long >>= 32 - mant_bits; | |
3524 | } | |
3525 | ||
3526 | put_field (uto, fmt->byteorder, fmt->totalsize, | |
3527 | mant_off, mant_bits, mant_long); | |
3528 | mant_off += mant_bits; | |
3529 | mant_bits_left -= mant_bits; | |
3530 | } | |
c5aa993b | 3531 | if (fmt->byteorder == floatformat_littlebyte_bigword) |
c906108c SS |
3532 | { |
3533 | int count; | |
3534 | unsigned char *swaplow = uto; | |
3535 | unsigned char *swaphigh = uto + 4; | |
3536 | unsigned char tmp; | |
3537 | ||
3538 | for (count = 0; count < 4; count++) | |
3539 | { | |
3540 | tmp = *swaplow; | |
3541 | *swaplow++ = *swaphigh; | |
3542 | *swaphigh++ = tmp; | |
3543 | } | |
3544 | } | |
3545 | } | |
3546 | ||
3547 | /* temporary storage using circular buffer */ | |
3548 | #define NUMCELLS 16 | |
3549 | #define CELLSIZE 32 | |
c5aa993b JM |
3550 | static char * |
3551 | get_cell () | |
c906108c SS |
3552 | { |
3553 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
3554 | static int cell = 0; |
3555 | if (++cell >= NUMCELLS) | |
3556 | cell = 0; | |
c906108c SS |
3557 | return buf[cell]; |
3558 | } | |
3559 | ||
3560 | /* print routines to handle variable size regs, etc. | |
3561 | ||
3562 | FIXME: Note that t_addr is a bfd_vma, which is currently either an | |
3563 | unsigned long or unsigned long long, determined at configure time. | |
3564 | If t_addr is an unsigned long long and sizeof (unsigned long long) | |
3565 | is greater than sizeof (unsigned long), then I believe this code will | |
3566 | probably lose, at least for little endian machines. I believe that | |
3567 | it would also be better to eliminate the switch on the absolute size | |
3568 | of t_addr and replace it with a sequence of if statements that compare | |
3569 | sizeof t_addr with sizeof the various types and do the right thing, | |
3570 | which includes knowing whether or not the host supports long long. | |
3571 | -fnf | |
3572 | ||
3573 | */ | |
3574 | ||
d4f3574e SS |
3575 | int |
3576 | strlen_paddr (void) | |
3577 | { | |
3578 | return (TARGET_PTR_BIT / 8 * 2); | |
3579 | } | |
3580 | ||
3581 | ||
104c1213 JM |
3582 | /* eliminate warning from compiler on 32-bit systems */ |
3583 | static int thirty_two = 32; | |
c906108c | 3584 | |
c5aa993b | 3585 | char * |
104c1213 | 3586 | paddr (CORE_ADDR addr) |
c906108c | 3587 | { |
c5aa993b | 3588 | char *paddr_str = get_cell (); |
104c1213 | 3589 | switch (TARGET_PTR_BIT / 8) |
c906108c | 3590 | { |
c5aa993b JM |
3591 | case 8: |
3592 | sprintf (paddr_str, "%08lx%08lx", | |
3593 | (unsigned long) (addr >> thirty_two), (unsigned long) (addr & 0xffffffff)); | |
3594 | break; | |
3595 | case 4: | |
3596 | sprintf (paddr_str, "%08lx", (unsigned long) addr); | |
3597 | break; | |
3598 | case 2: | |
3599 | sprintf (paddr_str, "%04x", (unsigned short) (addr & 0xffff)); | |
3600 | break; | |
3601 | default: | |
3602 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
c906108c SS |
3603 | } |
3604 | return paddr_str; | |
3605 | } | |
3606 | ||
c5aa993b | 3607 | char * |
104c1213 | 3608 | paddr_nz (CORE_ADDR addr) |
c906108c | 3609 | { |
c5aa993b | 3610 | char *paddr_str = get_cell (); |
104c1213 | 3611 | switch (TARGET_PTR_BIT / 8) |
c906108c | 3612 | { |
c5aa993b JM |
3613 | case 8: |
3614 | { | |
3615 | unsigned long high = (unsigned long) (addr >> thirty_two); | |
3616 | if (high == 0) | |
3617 | sprintf (paddr_str, "%lx", (unsigned long) (addr & 0xffffffff)); | |
3618 | else | |
3619 | sprintf (paddr_str, "%lx%08lx", | |
3620 | high, (unsigned long) (addr & 0xffffffff)); | |
c906108c | 3621 | break; |
c5aa993b JM |
3622 | } |
3623 | case 4: | |
3624 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
3625 | break; | |
3626 | case 2: | |
3627 | sprintf (paddr_str, "%x", (unsigned short) (addr & 0xffff)); | |
3628 | break; | |
3629 | default: | |
3630 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
c906108c SS |
3631 | } |
3632 | return paddr_str; | |
3633 | } | |
3634 | ||
104c1213 JM |
3635 | static void |
3636 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
3637 | { | |
3638 | /* steal code from valprint.c:print_decimal(). Should this worry | |
3639 | about the real size of addr as the above does? */ | |
3640 | unsigned long temp[3]; | |
3641 | int i = 0; | |
3642 | do | |
3643 | { | |
3644 | temp[i] = addr % (1000 * 1000 * 1000); | |
3645 | addr /= (1000 * 1000 * 1000); | |
3646 | i++; | |
3647 | } | |
3648 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
3649 | switch (i) | |
3650 | { | |
3651 | case 1: | |
3652 | sprintf (paddr_str, "%s%lu", | |
3653 | sign, temp[0]); | |
3654 | break; | |
3655 | case 2: | |
3656 | sprintf (paddr_str, "%s%lu%09lu", | |
3657 | sign, temp[1], temp[0]); | |
3658 | break; | |
3659 | case 3: | |
3660 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
3661 | sign, temp[2], temp[1], temp[0]); | |
3662 | break; | |
3663 | default: | |
3664 | abort (); | |
3665 | } | |
3666 | } | |
3667 | ||
3668 | char * | |
3669 | paddr_u (CORE_ADDR addr) | |
3670 | { | |
3671 | char *paddr_str = get_cell (); | |
3672 | decimal2str (paddr_str, "", addr); | |
3673 | return paddr_str; | |
3674 | } | |
3675 | ||
3676 | char * | |
3677 | paddr_d (LONGEST addr) | |
3678 | { | |
3679 | char *paddr_str = get_cell (); | |
3680 | if (addr < 0) | |
3681 | decimal2str (paddr_str, "-", -addr); | |
3682 | else | |
3683 | decimal2str (paddr_str, "", addr); | |
3684 | return paddr_str; | |
3685 | } | |
3686 | ||
3687 | char * | |
3688 | preg (reg) | |
3689 | t_reg reg; | |
3690 | { | |
3691 | char *preg_str = get_cell (); | |
3692 | switch (sizeof (t_reg)) | |
3693 | { | |
3694 | case 8: | |
3695 | sprintf (preg_str, "%08lx%08lx", | |
3696 | (unsigned long) (reg >> thirty_two), (unsigned long) (reg & 0xffffffff)); | |
3697 | break; | |
3698 | case 4: | |
3699 | sprintf (preg_str, "%08lx", (unsigned long) reg); | |
3700 | break; | |
3701 | case 2: | |
3702 | sprintf (preg_str, "%04x", (unsigned short) (reg & 0xffff)); | |
3703 | break; | |
3704 | default: | |
3705 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
3706 | } | |
3707 | return preg_str; | |
3708 | } | |
3709 | ||
c5aa993b JM |
3710 | char * |
3711 | preg_nz (reg) | |
3712 | t_reg reg; | |
c906108c | 3713 | { |
c5aa993b JM |
3714 | char *preg_str = get_cell (); |
3715 | switch (sizeof (t_reg)) | |
c906108c | 3716 | { |
c5aa993b JM |
3717 | case 8: |
3718 | { | |
3719 | unsigned long high = (unsigned long) (reg >> thirty_two); | |
3720 | if (high == 0) | |
3721 | sprintf (preg_str, "%lx", (unsigned long) (reg & 0xffffffff)); | |
3722 | else | |
3723 | sprintf (preg_str, "%lx%08lx", | |
3724 | high, (unsigned long) (reg & 0xffffffff)); | |
c906108c | 3725 | break; |
c5aa993b JM |
3726 | } |
3727 | case 4: | |
3728 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
3729 | break; | |
3730 | case 2: | |
3731 | sprintf (preg_str, "%x", (unsigned short) (reg & 0xffff)); | |
3732 | break; | |
3733 | default: | |
3734 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
c906108c SS |
3735 | } |
3736 | return preg_str; | |
3737 | } | |
392a587b JM |
3738 | |
3739 | /* Helper functions for INNER_THAN */ | |
3740 | int | |
3741 | core_addr_lessthan (lhs, rhs) | |
3742 | CORE_ADDR lhs; | |
3743 | CORE_ADDR rhs; | |
3744 | { | |
3745 | return (lhs < rhs); | |
3746 | } | |
3747 | ||
3748 | int | |
3749 | core_addr_greaterthan (lhs, rhs) | |
3750 | CORE_ADDR lhs; | |
3751 | CORE_ADDR rhs; | |
3752 | { | |
3753 | return (lhs > rhs); | |
3754 | } |