Commit | Line | Data |
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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 | ||
ed9a39eb JM |
934 | void * |
935 | mcalloc (void *md, size_t number, size_t size) | |
936 | { | |
937 | return calloc (number, size); | |
938 | } | |
939 | ||
c906108c SS |
940 | PTR |
941 | mmalloc (md, size) | |
942 | PTR md; | |
943 | size_t size; | |
944 | { | |
945 | return malloc (size); | |
946 | } | |
947 | ||
948 | PTR | |
949 | mrealloc (md, ptr, size) | |
950 | PTR md; | |
951 | PTR ptr; | |
952 | size_t size; | |
953 | { | |
c5aa993b | 954 | if (ptr == 0) /* Guard against old realloc's */ |
c906108c SS |
955 | return malloc (size); |
956 | else | |
957 | return realloc (ptr, size); | |
958 | } | |
959 | ||
960 | void | |
961 | mfree (md, ptr) | |
962 | PTR md; | |
963 | PTR ptr; | |
964 | { | |
965 | free (ptr); | |
966 | } | |
967 | ||
c5aa993b | 968 | #endif /* USE_MMALLOC */ |
c906108c SS |
969 | |
970 | #if !defined (USE_MMALLOC) || defined (NO_MMCHECK) | |
971 | ||
972 | void | |
973 | init_malloc (md) | |
974 | PTR md; | |
975 | { | |
976 | } | |
977 | ||
978 | #else /* Have mmalloc and want corruption checking */ | |
979 | ||
980 | static void | |
981 | malloc_botch () | |
982 | { | |
96baa820 JM |
983 | fprintf_unfiltered (gdb_stderr, "Memory corruption\n"); |
984 | abort (); | |
c906108c SS |
985 | } |
986 | ||
987 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
988 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
989 | the default heap that grows via sbrk. | |
990 | ||
991 | Note that for freshly created regions, we must call mmcheckf prior to any | |
992 | mallocs in the region. Otherwise, any region which was allocated prior to | |
993 | installing the checking hooks, which is later reallocated or freed, will | |
994 | fail the checks! The mmcheck function only allows initial hooks to be | |
995 | installed before the first mmalloc. However, anytime after we have called | |
996 | mmcheck the first time to install the checking hooks, we can call it again | |
997 | to update the function pointer to the memory corruption handler. | |
998 | ||
999 | Returns zero on failure, non-zero on success. */ | |
1000 | ||
1001 | #ifndef MMCHECK_FORCE | |
1002 | #define MMCHECK_FORCE 0 | |
1003 | #endif | |
1004 | ||
1005 | void | |
1006 | init_malloc (md) | |
1007 | PTR md; | |
1008 | { | |
1009 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) | |
1010 | { | |
1011 | /* Don't use warning(), which relies on current_target being set | |
c5aa993b JM |
1012 | to something other than dummy_target, until after |
1013 | initialize_all_files(). */ | |
c906108c SS |
1014 | |
1015 | fprintf_unfiltered | |
1016 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
1017 | fprintf_unfiltered | |
1018 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
1019 | } | |
1020 | ||
1021 | mmtrace (); | |
1022 | } | |
1023 | ||
1024 | #endif /* Have mmalloc and want corruption checking */ | |
1025 | ||
1026 | /* Called when a memory allocation fails, with the number of bytes of | |
1027 | memory requested in SIZE. */ | |
1028 | ||
1029 | NORETURN void | |
1030 | nomem (size) | |
1031 | long size; | |
1032 | { | |
1033 | if (size > 0) | |
1034 | { | |
96baa820 | 1035 | internal_error ("virtual memory exhausted: can't allocate %ld bytes.", size); |
c906108c SS |
1036 | } |
1037 | else | |
1038 | { | |
96baa820 | 1039 | internal_error ("virtual memory exhausted."); |
c906108c SS |
1040 | } |
1041 | } | |
1042 | ||
1043 | /* Like mmalloc but get error if no storage available, and protect against | |
1044 | the caller wanting to allocate zero bytes. Whether to return NULL for | |
1045 | a zero byte request, or translate the request into a request for one | |
1046 | byte of zero'd storage, is a religious issue. */ | |
1047 | ||
1048 | PTR | |
1049 | xmmalloc (md, size) | |
1050 | PTR md; | |
1051 | long size; | |
1052 | { | |
1053 | register PTR val; | |
1054 | ||
1055 | if (size == 0) | |
1056 | { | |
1057 | val = NULL; | |
1058 | } | |
1059 | else if ((val = mmalloc (md, size)) == NULL) | |
1060 | { | |
1061 | nomem (size); | |
1062 | } | |
1063 | return (val); | |
1064 | } | |
1065 | ||
1066 | /* Like mrealloc but get error if no storage available. */ | |
1067 | ||
1068 | PTR | |
1069 | xmrealloc (md, ptr, size) | |
1070 | PTR md; | |
1071 | PTR ptr; | |
1072 | long size; | |
1073 | { | |
1074 | register PTR val; | |
1075 | ||
1076 | if (ptr != NULL) | |
1077 | { | |
1078 | val = mrealloc (md, ptr, size); | |
1079 | } | |
1080 | else | |
1081 | { | |
1082 | val = mmalloc (md, size); | |
1083 | } | |
1084 | if (val == NULL) | |
1085 | { | |
1086 | nomem (size); | |
1087 | } | |
1088 | return (val); | |
1089 | } | |
1090 | ||
1091 | /* Like malloc but get error if no storage available, and protect against | |
1092 | the caller wanting to allocate zero bytes. */ | |
1093 | ||
1094 | PTR | |
1095 | xmalloc (size) | |
1096 | size_t size; | |
1097 | { | |
1098 | return (xmmalloc ((PTR) NULL, size)); | |
1099 | } | |
1100 | ||
ed9a39eb JM |
1101 | /* Like calloc but get error if no storage available */ |
1102 | ||
1103 | PTR | |
1104 | xcalloc (size_t number, size_t size) | |
1105 | { | |
1106 | void *mem = mcalloc (NULL, number, size); | |
1107 | if (mem == NULL) | |
1108 | nomem (number * size); | |
1109 | return mem; | |
1110 | } | |
1111 | ||
c906108c SS |
1112 | /* Like mrealloc but get error if no storage available. */ |
1113 | ||
1114 | PTR | |
1115 | xrealloc (ptr, size) | |
1116 | PTR ptr; | |
1117 | size_t size; | |
1118 | { | |
1119 | return (xmrealloc ((PTR) NULL, ptr, size)); | |
1120 | } | |
c906108c | 1121 | \f |
c5aa993b | 1122 | |
c906108c SS |
1123 | /* My replacement for the read system call. |
1124 | Used like `read' but keeps going if `read' returns too soon. */ | |
1125 | ||
1126 | int | |
1127 | myread (desc, addr, len) | |
1128 | int desc; | |
1129 | char *addr; | |
1130 | int len; | |
1131 | { | |
1132 | register int val; | |
1133 | int orglen = len; | |
1134 | ||
1135 | while (len > 0) | |
1136 | { | |
1137 | val = read (desc, addr, len); | |
1138 | if (val < 0) | |
1139 | return val; | |
1140 | if (val == 0) | |
1141 | return orglen - len; | |
1142 | len -= val; | |
1143 | addr += val; | |
1144 | } | |
1145 | return orglen; | |
1146 | } | |
1147 | \f | |
1148 | /* Make a copy of the string at PTR with SIZE characters | |
1149 | (and add a null character at the end in the copy). | |
1150 | Uses malloc to get the space. Returns the address of the copy. */ | |
1151 | ||
1152 | char * | |
1153 | savestring (ptr, size) | |
1154 | const char *ptr; | |
1155 | int size; | |
1156 | { | |
1157 | register char *p = (char *) xmalloc (size + 1); | |
1158 | memcpy (p, ptr, size); | |
1159 | p[size] = 0; | |
1160 | return p; | |
1161 | } | |
1162 | ||
1163 | char * | |
1164 | msavestring (md, ptr, size) | |
1165 | PTR md; | |
1166 | const char *ptr; | |
1167 | int size; | |
1168 | { | |
1169 | register char *p = (char *) xmmalloc (md, size + 1); | |
1170 | memcpy (p, ptr, size); | |
1171 | p[size] = 0; | |
1172 | return p; | |
1173 | } | |
1174 | ||
1175 | /* The "const" is so it compiles under DGUX (which prototypes strsave | |
1176 | in <string.h>. FIXME: This should be named "xstrsave", shouldn't it? | |
1177 | Doesn't real strsave return NULL if out of memory? */ | |
1178 | char * | |
1179 | strsave (ptr) | |
1180 | const char *ptr; | |
1181 | { | |
1182 | return savestring (ptr, strlen (ptr)); | |
1183 | } | |
1184 | ||
1185 | char * | |
1186 | mstrsave (md, ptr) | |
1187 | PTR md; | |
1188 | const char *ptr; | |
1189 | { | |
1190 | return (msavestring (md, ptr, strlen (ptr))); | |
1191 | } | |
1192 | ||
1193 | void | |
1194 | print_spaces (n, file) | |
1195 | register int n; | |
1196 | register GDB_FILE *file; | |
1197 | { | |
392a587b | 1198 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1199 | } |
1200 | ||
1201 | /* Print a host address. */ | |
1202 | ||
1203 | void | |
d4f3574e | 1204 | gdb_print_host_address (void *addr, struct gdb_file *stream) |
c906108c SS |
1205 | { |
1206 | ||
1207 | /* We could use the %p conversion specifier to fprintf if we had any | |
1208 | way of knowing whether this host supports it. But the following | |
1209 | should work on the Alpha and on 32 bit machines. */ | |
1210 | ||
c5aa993b | 1211 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c SS |
1212 | } |
1213 | ||
1214 | /* Ask user a y-or-n question and return 1 iff answer is yes. | |
1215 | Takes three args which are given to printf to print the question. | |
1216 | The first, a control string, should end in "? ". | |
1217 | It should not say how to answer, because we do that. */ | |
1218 | ||
1219 | /* VARARGS */ | |
1220 | int | |
c5aa993b | 1221 | query (char *ctlstr,...) |
c906108c SS |
1222 | { |
1223 | va_list args; | |
1224 | register int answer; | |
1225 | register int ans2; | |
1226 | int retval; | |
1227 | ||
c906108c | 1228 | va_start (args, ctlstr); |
c906108c SS |
1229 | |
1230 | if (query_hook) | |
1231 | { | |
1232 | return query_hook (ctlstr, args); | |
1233 | } | |
1234 | ||
1235 | /* Automatically answer "yes" if input is not from a terminal. */ | |
1236 | if (!input_from_terminal_p ()) | |
1237 | return 1; | |
1238 | #ifdef MPW | |
1239 | /* FIXME Automatically answer "yes" if called from MacGDB. */ | |
1240 | if (mac_app) | |
1241 | return 1; | |
1242 | #endif /* MPW */ | |
1243 | ||
1244 | while (1) | |
1245 | { | |
1246 | wrap_here (""); /* Flush any buffered output */ | |
1247 | gdb_flush (gdb_stdout); | |
1248 | ||
1249 | if (annotation_level > 1) | |
1250 | printf_filtered ("\n\032\032pre-query\n"); | |
1251 | ||
1252 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1253 | printf_filtered ("(y or n) "); | |
1254 | ||
1255 | if (annotation_level > 1) | |
1256 | printf_filtered ("\n\032\032query\n"); | |
1257 | ||
1258 | #ifdef MPW | |
1259 | /* If not in MacGDB, move to a new line so the entered line doesn't | |
c5aa993b | 1260 | have a prompt on the front of it. */ |
c906108c SS |
1261 | if (!mac_app) |
1262 | fputs_unfiltered ("\n", gdb_stdout); | |
1263 | #endif /* MPW */ | |
1264 | ||
c5aa993b | 1265 | wrap_here (""); |
c906108c SS |
1266 | gdb_flush (gdb_stdout); |
1267 | ||
1268 | #if defined(TUI) | |
c5aa993b | 1269 | if (!tui_version || cmdWin == tuiWinWithFocus ()) |
c906108c SS |
1270 | #endif |
1271 | answer = fgetc (stdin); | |
1272 | #if defined(TUI) | |
1273 | else | |
c5aa993b | 1274 | answer = (unsigned char) tuiBufferGetc (); |
c906108c SS |
1275 | |
1276 | #endif | |
1277 | clearerr (stdin); /* in case of C-d */ | |
1278 | if (answer == EOF) /* C-d */ | |
c5aa993b | 1279 | { |
c906108c SS |
1280 | retval = 1; |
1281 | break; | |
1282 | } | |
1283 | /* Eat rest of input line, to EOF or newline */ | |
1284 | if ((answer != '\n') || (tui_version && answer != '\r')) | |
c5aa993b | 1285 | do |
c906108c SS |
1286 | { |
1287 | #if defined(TUI) | |
c5aa993b | 1288 | if (!tui_version || cmdWin == tuiWinWithFocus ()) |
c906108c SS |
1289 | #endif |
1290 | ans2 = fgetc (stdin); | |
1291 | #if defined(TUI) | |
1292 | else | |
c5aa993b | 1293 | ans2 = (unsigned char) tuiBufferGetc (); |
c906108c SS |
1294 | #endif |
1295 | clearerr (stdin); | |
1296 | } | |
c5aa993b JM |
1297 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); |
1298 | TUIDO (((TuiOpaqueFuncPtr) tui_vStartNewLines, 1)); | |
c906108c SS |
1299 | |
1300 | if (answer >= 'a') | |
1301 | answer -= 040; | |
1302 | if (answer == 'Y') | |
1303 | { | |
1304 | retval = 1; | |
1305 | break; | |
1306 | } | |
1307 | if (answer == 'N') | |
1308 | { | |
1309 | retval = 0; | |
1310 | break; | |
1311 | } | |
1312 | printf_filtered ("Please answer y or n.\n"); | |
1313 | } | |
1314 | ||
1315 | if (annotation_level > 1) | |
1316 | printf_filtered ("\n\032\032post-query\n"); | |
1317 | return retval; | |
1318 | } | |
c906108c | 1319 | \f |
c5aa993b | 1320 | |
c906108c SS |
1321 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1322 | containing a pointer to the string to parse. That pointer | |
1323 | should point to the character after the \. That pointer | |
1324 | is updated past the characters we use. The value of the | |
1325 | escape sequence is returned. | |
1326 | ||
1327 | A negative value means the sequence \ newline was seen, | |
1328 | which is supposed to be equivalent to nothing at all. | |
1329 | ||
1330 | If \ is followed by a null character, we return a negative | |
1331 | value and leave the string pointer pointing at the null character. | |
1332 | ||
1333 | If \ is followed by 000, we return 0 and leave the string pointer | |
1334 | after the zeros. A value of 0 does not mean end of string. */ | |
1335 | ||
1336 | int | |
1337 | parse_escape (string_ptr) | |
1338 | char **string_ptr; | |
1339 | { | |
1340 | register int c = *(*string_ptr)++; | |
1341 | switch (c) | |
1342 | { | |
1343 | case 'a': | |
1344 | return 007; /* Bell (alert) char */ | |
1345 | case 'b': | |
1346 | return '\b'; | |
1347 | case 'e': /* Escape character */ | |
1348 | return 033; | |
1349 | case 'f': | |
1350 | return '\f'; | |
1351 | case 'n': | |
1352 | return '\n'; | |
1353 | case 'r': | |
1354 | return '\r'; | |
1355 | case 't': | |
1356 | return '\t'; | |
1357 | case 'v': | |
1358 | return '\v'; | |
1359 | case '\n': | |
1360 | return -2; | |
1361 | case 0: | |
1362 | (*string_ptr)--; | |
1363 | return 0; | |
1364 | case '^': | |
1365 | c = *(*string_ptr)++; | |
1366 | if (c == '\\') | |
1367 | c = parse_escape (string_ptr); | |
1368 | if (c == '?') | |
1369 | return 0177; | |
1370 | return (c & 0200) | (c & 037); | |
c5aa993b | 1371 | |
c906108c SS |
1372 | case '0': |
1373 | case '1': | |
1374 | case '2': | |
1375 | case '3': | |
1376 | case '4': | |
1377 | case '5': | |
1378 | case '6': | |
1379 | case '7': | |
1380 | { | |
1381 | register int i = c - '0'; | |
1382 | register int count = 0; | |
1383 | while (++count < 3) | |
1384 | { | |
1385 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1386 | { | |
1387 | i *= 8; | |
1388 | i += c - '0'; | |
1389 | } | |
1390 | else | |
1391 | { | |
1392 | (*string_ptr)--; | |
1393 | break; | |
1394 | } | |
1395 | } | |
1396 | return i; | |
1397 | } | |
1398 | default: | |
1399 | return c; | |
1400 | } | |
1401 | } | |
1402 | \f | |
1403 | /* Print the character C on STREAM as part of the contents of a literal | |
1404 | string whose delimiter is QUOTER. Note that this routine should only | |
1405 | be call for printing things which are independent of the language | |
1406 | of the program being debugged. */ | |
1407 | ||
43e526b9 JM |
1408 | 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)); |
1409 | ||
1410 | static void | |
1411 | printchar (c, do_fputs, do_fprintf, stream, quoter) | |
1412 | int c; | |
1413 | void (*do_fputs) PARAMS ((const char *, GDB_FILE*)); | |
1414 | void (*do_fprintf) PARAMS ((GDB_FILE*, const char *, ...)); | |
c906108c SS |
1415 | GDB_FILE *stream; |
1416 | int quoter; | |
1417 | { | |
1418 | ||
1419 | c &= 0xFF; /* Avoid sign bit follies */ | |
1420 | ||
c5aa993b JM |
1421 | if (c < 0x20 || /* Low control chars */ |
1422 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1423 | (sevenbit_strings && c >= 0x80)) | |
1424 | { /* high order bit set */ | |
1425 | switch (c) | |
1426 | { | |
1427 | case '\n': | |
43e526b9 | 1428 | do_fputs ("\\n", stream); |
c5aa993b JM |
1429 | break; |
1430 | case '\b': | |
43e526b9 | 1431 | do_fputs ("\\b", stream); |
c5aa993b JM |
1432 | break; |
1433 | case '\t': | |
43e526b9 | 1434 | do_fputs ("\\t", stream); |
c5aa993b JM |
1435 | break; |
1436 | case '\f': | |
43e526b9 | 1437 | do_fputs ("\\f", stream); |
c5aa993b JM |
1438 | break; |
1439 | case '\r': | |
43e526b9 | 1440 | do_fputs ("\\r", stream); |
c5aa993b JM |
1441 | break; |
1442 | case '\033': | |
43e526b9 | 1443 | do_fputs ("\\e", stream); |
c5aa993b JM |
1444 | break; |
1445 | case '\007': | |
43e526b9 | 1446 | do_fputs ("\\a", stream); |
c5aa993b JM |
1447 | break; |
1448 | default: | |
43e526b9 | 1449 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1450 | break; |
1451 | } | |
1452 | } | |
1453 | else | |
1454 | { | |
1455 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1456 | do_fputs ("\\", stream); |
1457 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1458 | } |
c906108c | 1459 | } |
43e526b9 JM |
1460 | |
1461 | /* Print the character C on STREAM as part of the contents of a | |
1462 | literal string whose delimiter is QUOTER. Note that these routines | |
1463 | should only be call for printing things which are independent of | |
1464 | the language of the program being debugged. */ | |
1465 | ||
1466 | void | |
1467 | fputstr_filtered (str, quoter, stream) | |
1468 | const char *str; | |
1469 | int quoter; | |
1470 | GDB_FILE *stream; | |
1471 | { | |
1472 | while (*str) | |
1473 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1474 | } | |
1475 | ||
1476 | void | |
1477 | fputstr_unfiltered (str, quoter, stream) | |
1478 | const char *str; | |
1479 | int quoter; | |
1480 | GDB_FILE *stream; | |
1481 | { | |
1482 | while (*str) | |
1483 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1484 | } | |
1485 | ||
1486 | void | |
1487 | fputstrn_unfiltered (str, n, quoter, stream) | |
1488 | const char *str; | |
1489 | int n; | |
1490 | int quoter; | |
1491 | GDB_FILE *stream; | |
1492 | { | |
1493 | int i; | |
1494 | for (i = 0; i < n; i++) | |
1495 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1496 | } | |
1497 | ||
c906108c | 1498 | \f |
c5aa993b | 1499 | |
c906108c SS |
1500 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1501 | static unsigned int lines_per_page; | |
e514a9d6 | 1502 | /* Number of chars per line or UNIT_MAX if line folding is disabled. */ |
c906108c SS |
1503 | static unsigned int chars_per_line; |
1504 | /* Current count of lines printed on this page, chars on this line. */ | |
1505 | static unsigned int lines_printed, chars_printed; | |
1506 | ||
1507 | /* Buffer and start column of buffered text, for doing smarter word- | |
1508 | wrapping. When someone calls wrap_here(), we start buffering output | |
1509 | that comes through fputs_filtered(). If we see a newline, we just | |
1510 | spit it out and forget about the wrap_here(). If we see another | |
1511 | wrap_here(), we spit it out and remember the newer one. If we see | |
1512 | the end of the line, we spit out a newline, the indent, and then | |
1513 | the buffered output. */ | |
1514 | ||
1515 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1516 | are waiting to be output (they have already been counted in chars_printed). | |
1517 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1518 | static char *wrap_buffer; | |
1519 | ||
1520 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1521 | static char *wrap_pointer; | |
1522 | ||
1523 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1524 | is non-zero. */ | |
1525 | static char *wrap_indent; | |
1526 | ||
1527 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1528 | is not in effect. */ | |
1529 | static int wrap_column; | |
c906108c | 1530 | \f |
c5aa993b | 1531 | |
c906108c SS |
1532 | /* Inialize the lines and chars per page */ |
1533 | void | |
c5aa993b | 1534 | init_page_info () |
c906108c SS |
1535 | { |
1536 | #if defined(TUI) | |
c5aa993b | 1537 | if (tui_version && m_winPtrNotNull (cmdWin)) |
c906108c SS |
1538 | { |
1539 | lines_per_page = cmdWin->generic.height; | |
1540 | chars_per_line = cmdWin->generic.width; | |
1541 | } | |
1542 | else | |
1543 | #endif | |
1544 | { | |
1545 | /* These defaults will be used if we are unable to get the correct | |
1546 | values from termcap. */ | |
1547 | #if defined(__GO32__) | |
c5aa993b JM |
1548 | lines_per_page = ScreenRows (); |
1549 | chars_per_line = ScreenCols (); | |
1550 | #else | |
c906108c SS |
1551 | lines_per_page = 24; |
1552 | chars_per_line = 80; | |
1553 | ||
1554 | #if !defined (MPW) && !defined (_WIN32) | |
1555 | /* No termcap under MPW, although might be cool to do something | |
1556 | by looking at worksheet or console window sizes. */ | |
1557 | /* Initialize the screen height and width from termcap. */ | |
1558 | { | |
c5aa993b | 1559 | char *termtype = getenv ("TERM"); |
c906108c | 1560 | |
c5aa993b JM |
1561 | /* Positive means success, nonpositive means failure. */ |
1562 | int status; | |
c906108c | 1563 | |
c5aa993b JM |
1564 | /* 2048 is large enough for all known terminals, according to the |
1565 | GNU termcap manual. */ | |
1566 | char term_buffer[2048]; | |
c906108c | 1567 | |
c5aa993b JM |
1568 | if (termtype) |
1569 | { | |
c906108c SS |
1570 | status = tgetent (term_buffer, termtype); |
1571 | if (status > 0) | |
1572 | { | |
c5aa993b | 1573 | int val; |
c906108c | 1574 | int running_in_emacs = getenv ("EMACS") != NULL; |
c5aa993b JM |
1575 | |
1576 | val = tgetnum ("li"); | |
1577 | if (val >= 0 && !running_in_emacs) | |
1578 | lines_per_page = val; | |
1579 | else | |
1580 | /* The number of lines per page is not mentioned | |
c906108c SS |
1581 | in the terminal description. This probably means |
1582 | that paging is not useful (e.g. emacs shell window), | |
1583 | so disable paging. */ | |
c5aa993b JM |
1584 | lines_per_page = UINT_MAX; |
1585 | ||
1586 | val = tgetnum ("co"); | |
1587 | if (val >= 0) | |
1588 | chars_per_line = val; | |
c906108c | 1589 | } |
c5aa993b | 1590 | } |
c906108c SS |
1591 | } |
1592 | #endif /* MPW */ | |
1593 | ||
1594 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) | |
1595 | ||
1596 | /* If there is a better way to determine the window size, use it. */ | |
1597 | SIGWINCH_HANDLER (SIGWINCH); | |
1598 | #endif | |
1599 | #endif | |
1600 | /* If the output is not a terminal, don't paginate it. */ | |
1601 | if (!GDB_FILE_ISATTY (gdb_stdout)) | |
c5aa993b JM |
1602 | lines_per_page = UINT_MAX; |
1603 | } /* the command_line_version */ | |
1604 | set_width (); | |
c906108c SS |
1605 | } |
1606 | ||
1607 | static void | |
c5aa993b | 1608 | set_width () |
c906108c SS |
1609 | { |
1610 | if (chars_per_line == 0) | |
c5aa993b | 1611 | init_page_info (); |
c906108c SS |
1612 | |
1613 | if (!wrap_buffer) | |
1614 | { | |
1615 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1616 | wrap_buffer[0] = '\0'; | |
1617 | } | |
1618 | else | |
1619 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
c5aa993b | 1620 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ |
c906108c SS |
1621 | } |
1622 | ||
1623 | /* ARGSUSED */ | |
c5aa993b | 1624 | static void |
c906108c SS |
1625 | set_width_command (args, from_tty, c) |
1626 | char *args; | |
1627 | int from_tty; | |
1628 | struct cmd_list_element *c; | |
1629 | { | |
1630 | set_width (); | |
1631 | } | |
1632 | ||
1633 | /* Wait, so the user can read what's on the screen. Prompt the user | |
1634 | to continue by pressing RETURN. */ | |
1635 | ||
1636 | static void | |
1637 | prompt_for_continue () | |
1638 | { | |
1639 | char *ignore; | |
1640 | char cont_prompt[120]; | |
1641 | ||
1642 | if (annotation_level > 1) | |
1643 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1644 | ||
1645 | strcpy (cont_prompt, | |
1646 | "---Type <return> to continue, or q <return> to quit---"); | |
1647 | if (annotation_level > 1) | |
1648 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1649 | ||
1650 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1651 | call us -- thinking that we're trying to print beyond the end of the | |
1652 | screen. */ | |
1653 | reinitialize_more_filter (); | |
1654 | ||
1655 | immediate_quit++; | |
1656 | /* On a real operating system, the user can quit with SIGINT. | |
1657 | But not on GO32. | |
1658 | ||
1659 | 'q' is provided on all systems so users don't have to change habits | |
1660 | from system to system, and because telling them what to do in | |
1661 | the prompt is more user-friendly than expecting them to think of | |
1662 | SIGINT. */ | |
1663 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1664 | whereas control-C to gdb_readline will cause the user to get dumped | |
1665 | out to DOS. */ | |
1666 | ignore = readline (cont_prompt); | |
1667 | ||
1668 | if (annotation_level > 1) | |
1669 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1670 | ||
1671 | if (ignore) | |
1672 | { | |
1673 | char *p = ignore; | |
1674 | while (*p == ' ' || *p == '\t') | |
1675 | ++p; | |
1676 | if (p[0] == 'q') | |
0f71a2f6 | 1677 | { |
6426a772 | 1678 | if (!event_loop_p) |
0f71a2f6 JM |
1679 | request_quit (SIGINT); |
1680 | else | |
c5aa993b | 1681 | async_request_quit (0); |
0f71a2f6 | 1682 | } |
c906108c SS |
1683 | free (ignore); |
1684 | } | |
1685 | immediate_quit--; | |
1686 | ||
1687 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1688 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1689 | reinitialize_more_filter (); | |
1690 | ||
1691 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1692 | } | |
1693 | ||
1694 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1695 | ||
1696 | void | |
1697 | reinitialize_more_filter () | |
1698 | { | |
1699 | lines_printed = 0; | |
1700 | chars_printed = 0; | |
1701 | } | |
1702 | ||
1703 | /* Indicate that if the next sequence of characters overflows the line, | |
1704 | a newline should be inserted here rather than when it hits the end. | |
1705 | If INDENT is non-null, it is a string to be printed to indent the | |
1706 | wrapped part on the next line. INDENT must remain accessible until | |
1707 | the next call to wrap_here() or until a newline is printed through | |
1708 | fputs_filtered(). | |
1709 | ||
1710 | If the line is already overfull, we immediately print a newline and | |
1711 | the indentation, and disable further wrapping. | |
1712 | ||
1713 | If we don't know the width of lines, but we know the page height, | |
1714 | we must not wrap words, but should still keep track of newlines | |
1715 | that were explicitly printed. | |
1716 | ||
1717 | INDENT should not contain tabs, as that will mess up the char count | |
1718 | on the next line. FIXME. | |
1719 | ||
1720 | This routine is guaranteed to force out any output which has been | |
1721 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1722 | used to force out output from the wrap_buffer. */ | |
1723 | ||
1724 | void | |
c5aa993b | 1725 | wrap_here (indent) |
c906108c SS |
1726 | char *indent; |
1727 | { | |
1728 | /* This should have been allocated, but be paranoid anyway. */ | |
1729 | if (!wrap_buffer) | |
1730 | abort (); | |
1731 | ||
1732 | if (wrap_buffer[0]) | |
1733 | { | |
1734 | *wrap_pointer = '\0'; | |
1735 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1736 | } | |
1737 | wrap_pointer = wrap_buffer; | |
1738 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1739 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1740 | { |
1741 | wrap_column = 0; | |
1742 | } | |
1743 | else if (chars_printed >= chars_per_line) | |
1744 | { | |
1745 | puts_filtered ("\n"); | |
1746 | if (indent != NULL) | |
1747 | puts_filtered (indent); | |
1748 | wrap_column = 0; | |
1749 | } | |
1750 | else | |
1751 | { | |
1752 | wrap_column = chars_printed; | |
1753 | if (indent == NULL) | |
1754 | wrap_indent = ""; | |
1755 | else | |
1756 | wrap_indent = indent; | |
1757 | } | |
1758 | } | |
1759 | ||
1760 | /* Ensure that whatever gets printed next, using the filtered output | |
1761 | commands, starts at the beginning of the line. I.E. if there is | |
1762 | any pending output for the current line, flush it and start a new | |
1763 | line. Otherwise do nothing. */ | |
1764 | ||
1765 | void | |
1766 | begin_line () | |
1767 | { | |
1768 | if (chars_printed > 0) | |
1769 | { | |
1770 | puts_filtered ("\n"); | |
1771 | } | |
1772 | } | |
1773 | ||
ac9a91a7 JM |
1774 | |
1775 | /* ``struct gdb_file'' implementation that maps directly onto | |
1776 | <stdio.h>'s FILE. */ | |
1777 | ||
11cf8741 | 1778 | static gdb_file_write_ftype stdio_file_write; |
ac9a91a7 JM |
1779 | static gdb_file_fputs_ftype stdio_file_fputs; |
1780 | static gdb_file_isatty_ftype stdio_file_isatty; | |
1781 | static gdb_file_delete_ftype stdio_file_delete; | |
c5aa993b | 1782 | static struct gdb_file *stdio_file_new PARAMS ((FILE * file, int close_p)); |
ac9a91a7 JM |
1783 | static gdb_file_flush_ftype stdio_file_flush; |
1784 | ||
1785 | static int stdio_file_magic; | |
1786 | ||
1787 | struct stdio_file | |
c5aa993b JM |
1788 | { |
1789 | int *magic; | |
1790 | FILE *file; | |
1791 | int close_p; | |
1792 | }; | |
ac9a91a7 JM |
1793 | |
1794 | static struct gdb_file * | |
1795 | stdio_file_new (file, close_p) | |
1796 | FILE *file; | |
1797 | int close_p; | |
1798 | { | |
1799 | struct gdb_file *gdb_file = gdb_file_new (); | |
1800 | struct stdio_file *stdio = xmalloc (sizeof (struct stdio_file)); | |
1801 | stdio->magic = &stdio_file_magic; | |
1802 | stdio->file = file; | |
1803 | stdio->close_p = close_p; | |
1804 | set_gdb_file_data (gdb_file, stdio, stdio_file_delete); | |
1805 | set_gdb_file_flush (gdb_file, stdio_file_flush); | |
11cf8741 | 1806 | set_gdb_file_write (gdb_file, stdio_file_write); |
ac9a91a7 JM |
1807 | set_gdb_file_fputs (gdb_file, stdio_file_fputs); |
1808 | set_gdb_file_isatty (gdb_file, stdio_file_isatty); | |
1809 | return gdb_file; | |
1810 | } | |
1811 | ||
1812 | static void | |
1813 | stdio_file_delete (file) | |
1814 | struct gdb_file *file; | |
1815 | { | |
1816 | struct stdio_file *stdio = gdb_file_data (file); | |
1817 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1818 | internal_error ("stdio_file_delete: bad magic number"); |
ac9a91a7 JM |
1819 | if (stdio->close_p) |
1820 | { | |
1821 | fclose (stdio->file); | |
1822 | } | |
1823 | free (stdio); | |
1824 | } | |
1825 | ||
1826 | static void | |
1827 | stdio_file_flush (file) | |
1828 | struct gdb_file *file; | |
c906108c | 1829 | { |
ac9a91a7 JM |
1830 | struct stdio_file *stdio = gdb_file_data (file); |
1831 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1832 | internal_error ("stdio_file_flush: bad magic number"); |
ac9a91a7 JM |
1833 | fflush (stdio->file); |
1834 | } | |
1835 | ||
11cf8741 JM |
1836 | static void |
1837 | stdio_file_write (struct gdb_file *file, const char *buf, long length_buf) | |
1838 | { | |
1839 | struct stdio_file *stdio = gdb_file_data (file); | |
1840 | if (stdio->magic != &stdio_file_magic) | |
1841 | internal_error ("stdio_file_write: bad magic number"); | |
1842 | fwrite (buf, length_buf, 1, stdio->file); | |
1843 | } | |
1844 | ||
ac9a91a7 JM |
1845 | static void |
1846 | stdio_file_fputs (linebuffer, file) | |
1847 | const char *linebuffer; | |
1848 | struct gdb_file *file; | |
1849 | { | |
1850 | struct stdio_file *stdio = gdb_file_data (file); | |
1851 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1852 | internal_error ("stdio_file_fputs: bad magic number"); |
ac9a91a7 JM |
1853 | fputs (linebuffer, stdio->file); |
1854 | } | |
1855 | ||
1856 | static int | |
1857 | stdio_file_isatty (file) | |
1858 | struct gdb_file *file; | |
1859 | { | |
1860 | struct stdio_file *stdio = gdb_file_data (file); | |
1861 | if (stdio->magic != &stdio_file_magic) | |
11cf8741 | 1862 | internal_error ("stdio_file_isatty: bad magic number"); |
ac9a91a7 JM |
1863 | return (isatty (fileno (stdio->file))); |
1864 | } | |
1865 | ||
1866 | /* Like fdopen(). Create a gdb_file from a previously opened FILE. */ | |
1867 | ||
1868 | struct gdb_file * | |
1869 | stdio_fileopen (file) | |
1870 | FILE *file; | |
1871 | { | |
1872 | return stdio_file_new (file, 0); | |
1873 | } | |
1874 | ||
1875 | ||
917317f4 | 1876 | /* A pure memory based ``struct gdb_file'' that can be used an output |
4ce44c66 JM |
1877 | buffer. The buffers accumulated contents are available via |
1878 | gdb_file_put(). */ | |
917317f4 JM |
1879 | |
1880 | struct mem_file | |
1881 | { | |
1882 | int *magic; | |
1883 | char *buffer; | |
1884 | int sizeof_buffer; | |
4ce44c66 | 1885 | int length_buffer; |
917317f4 JM |
1886 | }; |
1887 | ||
917317f4 JM |
1888 | static gdb_file_rewind_ftype mem_file_rewind; |
1889 | static gdb_file_put_ftype mem_file_put; | |
4ce44c66 | 1890 | static gdb_file_write_ftype mem_file_write; |
917317f4 JM |
1891 | static gdb_file_delete_ftype mem_file_delete; |
1892 | static struct gdb_file *mem_file_new PARAMS ((void)); | |
1893 | static int mem_file_magic; | |
1894 | ||
1895 | static struct gdb_file * | |
1896 | mem_file_new (void) | |
1897 | { | |
1898 | struct mem_file *stream = XMALLOC (struct mem_file); | |
1899 | struct gdb_file *file = gdb_file_new (); | |
1900 | set_gdb_file_data (file, stream, mem_file_delete); | |
917317f4 JM |
1901 | set_gdb_file_rewind (file, mem_file_rewind); |
1902 | set_gdb_file_put (file, mem_file_put); | |
4ce44c66 | 1903 | set_gdb_file_write (file, mem_file_write); |
917317f4 JM |
1904 | stream->magic = &mem_file_magic; |
1905 | stream->buffer = NULL; | |
1906 | stream->sizeof_buffer = 0; | |
4ce44c66 | 1907 | stream->length_buffer = 0; |
917317f4 JM |
1908 | return file; |
1909 | } | |
1910 | ||
1911 | static void | |
1912 | mem_file_delete (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_delete: bad magic number"); | |
1917 | if (stream->buffer != NULL) | |
1918 | free (stream->buffer); | |
1919 | free (stream); | |
1920 | } | |
1921 | ||
1922 | struct gdb_file * | |
1923 | mem_fileopen (void) | |
1924 | { | |
1925 | return mem_file_new (); | |
1926 | } | |
1927 | ||
1928 | static void | |
1929 | mem_file_rewind (struct gdb_file *file) | |
1930 | { | |
1931 | struct mem_file *stream = gdb_file_data (file); | |
1932 | if (stream->magic != &mem_file_magic) | |
1933 | internal_error ("mem_file_rewind: bad magic number"); | |
4ce44c66 | 1934 | stream->length_buffer = 0; |
917317f4 JM |
1935 | } |
1936 | ||
1937 | static void | |
4ce44c66 JM |
1938 | mem_file_put (struct gdb_file *file, |
1939 | gdb_file_put_method_ftype *write, | |
1940 | void *dest) | |
917317f4 JM |
1941 | { |
1942 | struct mem_file *stream = gdb_file_data (file); | |
1943 | if (stream->magic != &mem_file_magic) | |
1944 | internal_error ("mem_file_put: bad magic number"); | |
4ce44c66 JM |
1945 | if (stream->length_buffer > 0) |
1946 | write (dest, stream->buffer, stream->length_buffer); | |
917317f4 JM |
1947 | } |
1948 | ||
1949 | void | |
4ce44c66 JM |
1950 | mem_file_write (struct gdb_file *file, |
1951 | const char *buffer, | |
1952 | long length_buffer) | |
917317f4 JM |
1953 | { |
1954 | struct mem_file *stream = gdb_file_data (file); | |
1955 | if (stream->magic != &mem_file_magic) | |
4ce44c66 | 1956 | internal_error ("mem_file_write: bad magic number"); |
917317f4 JM |
1957 | if (stream->buffer == NULL) |
1958 | { | |
4ce44c66 JM |
1959 | stream->length_buffer = length_buffer; |
1960 | stream->sizeof_buffer = length_buffer; | |
917317f4 | 1961 | stream->buffer = xmalloc (stream->sizeof_buffer); |
4ce44c66 | 1962 | memcpy (stream->buffer, buffer, length_buffer); |
917317f4 JM |
1963 | } |
1964 | else | |
1965 | { | |
4ce44c66 JM |
1966 | int new_length = stream->length_buffer + length_buffer; |
1967 | if (new_length >= stream->sizeof_buffer) | |
917317f4 | 1968 | { |
4ce44c66 | 1969 | stream->sizeof_buffer = new_length; |
917317f4 JM |
1970 | stream->buffer = xrealloc (stream->buffer, stream->sizeof_buffer); |
1971 | } | |
4ce44c66 JM |
1972 | memcpy (stream->buffer + stream->length_buffer, buffer, length_buffer); |
1973 | stream->length_buffer = new_length; | |
917317f4 JM |
1974 | } |
1975 | } | |
1976 | ||
ac9a91a7 JM |
1977 | /* A ``struct gdb_file'' that is compatible with all the legacy |
1978 | code. */ | |
c906108c | 1979 | |
104c1213 JM |
1980 | /* new */ |
1981 | enum streamtype | |
1982 | { | |
1983 | afile, | |
1984 | astring | |
1985 | }; | |
1986 | ||
1987 | /* new */ | |
1988 | struct tui_stream | |
1989 | { | |
1990 | int *ts_magic; | |
1991 | enum streamtype ts_streamtype; | |
1992 | FILE *ts_filestream; | |
1993 | char *ts_strbuf; | |
1994 | int ts_buflen; | |
1995 | }; | |
1996 | ||
ac9a91a7 JM |
1997 | static gdb_file_flush_ftype tui_file_flush; |
1998 | extern gdb_file_fputs_ftype tui_file_fputs; | |
1999 | static gdb_file_isatty_ftype tui_file_isatty; | |
0f71a2f6 JM |
2000 | static gdb_file_rewind_ftype tui_file_rewind; |
2001 | static gdb_file_put_ftype tui_file_put; | |
ac9a91a7 JM |
2002 | static gdb_file_delete_ftype tui_file_delete; |
2003 | static struct gdb_file *tui_file_new PARAMS ((void)); | |
2004 | static int tui_file_magic; | |
2005 | ||
2006 | static struct gdb_file * | |
2007 | tui_file_new () | |
2008 | { | |
2009 | struct tui_stream *tui = xmalloc (sizeof (struct tui_stream)); | |
2010 | struct gdb_file *file = gdb_file_new (); | |
2011 | set_gdb_file_data (file, tui, tui_file_delete); | |
2012 | set_gdb_file_flush (file, tui_file_flush); | |
2013 | set_gdb_file_fputs (file, tui_file_fputs); | |
2014 | set_gdb_file_isatty (file, tui_file_isatty); | |
0f71a2f6 JM |
2015 | set_gdb_file_rewind (file, tui_file_rewind); |
2016 | set_gdb_file_put (file, tui_file_put); | |
ac9a91a7 JM |
2017 | tui->ts_magic = &tui_file_magic; |
2018 | return file; | |
2019 | } | |
2020 | ||
2021 | static void | |
2022 | tui_file_delete (file) | |
2023 | struct gdb_file *file; | |
2024 | { | |
2025 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2026 | if (tmpstream->ts_magic != &tui_file_magic) | |
11cf8741 | 2027 | internal_error ("tui_file_delete: bad magic number"); |
ac9a91a7 | 2028 | if ((tmpstream->ts_streamtype == astring) && |
c5aa993b | 2029 | (tmpstream->ts_strbuf != NULL)) |
ac9a91a7 JM |
2030 | { |
2031 | free (tmpstream->ts_strbuf); | |
2032 | } | |
2033 | free (tmpstream); | |
2034 | } | |
2035 | ||
2036 | struct gdb_file * | |
2037 | tui_fileopen (stream) | |
2038 | FILE *stream; | |
2039 | { | |
2040 | struct gdb_file *file = tui_file_new (); | |
2041 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2042 | tmpstream->ts_streamtype = afile; | |
2043 | tmpstream->ts_filestream = stream; | |
2044 | tmpstream->ts_strbuf = NULL; | |
2045 | tmpstream->ts_buflen = 0; | |
2046 | return file; | |
2047 | } | |
2048 | ||
2acceee2 JM |
2049 | struct gdb_file * |
2050 | tui_sfileopen (n) | |
2051 | int n; | |
2052 | { | |
2053 | struct gdb_file *file = tui_file_new (); | |
2054 | struct tui_stream *tmpstream = gdb_file_data (file); | |
2055 | tmpstream->ts_streamtype = astring; | |
2056 | tmpstream->ts_filestream = NULL; | |
2057 | if (n > 0) | |
2058 | { | |
2059 | tmpstream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
2060 | tmpstream->ts_strbuf[0] = '\0'; | |
2061 | } | |
2062 | else | |
2063 | /* Do not allocate the buffer now. The first time something is printed | |
11cf8741 | 2064 | one will be allocated by tui_file_adjust_strbuf() */ |
2acceee2 JM |
2065 | tmpstream->ts_strbuf = NULL; |
2066 | tmpstream->ts_buflen = n; | |
2067 | return file; | |
2068 | } | |
2069 | ||
c5aa993b | 2070 | static int |
ac9a91a7 | 2071 | tui_file_isatty (file) |
c5aa993b | 2072 | struct gdb_file *file; |
ac9a91a7 JM |
2073 | { |
2074 | struct tui_stream *stream = gdb_file_data (file); | |
2075 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2076 | internal_error ("tui_file_isatty: bad magic number"); |
c906108c | 2077 | if (stream->ts_streamtype == afile) |
c5aa993b JM |
2078 | return (isatty (fileno (stream->ts_filestream))); |
2079 | else | |
2080 | return 0; | |
c906108c SS |
2081 | } |
2082 | ||
0f71a2f6 JM |
2083 | static void |
2084 | tui_file_rewind (file) | |
c5aa993b | 2085 | struct gdb_file *file; |
0f71a2f6 JM |
2086 | { |
2087 | struct tui_stream *stream = gdb_file_data (file); | |
2088 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2089 | internal_error ("tui_file_rewind: bad magic number"); |
0f71a2f6 JM |
2090 | stream->ts_strbuf[0] = '\0'; |
2091 | } | |
2092 | ||
2093 | static void | |
4ce44c66 JM |
2094 | tui_file_put (struct gdb_file *file, |
2095 | gdb_file_put_method_ftype *write, | |
2096 | void *dest) | |
0f71a2f6 JM |
2097 | { |
2098 | struct tui_stream *stream = gdb_file_data (file); | |
2099 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2100 | internal_error ("tui_file_put: bad magic number"); |
0f71a2f6 | 2101 | if (stream->ts_streamtype == astring) |
4ce44c66 | 2102 | write (dest, stream->ts_strbuf, strlen (stream->ts_strbuf)); |
0f71a2f6 JM |
2103 | } |
2104 | ||
104c1213 JM |
2105 | /* All TUI I/O sent to the *_filtered and *_unfiltered functions |
2106 | eventually ends up here. The fputs_unfiltered_hook is primarily | |
2107 | used by GUIs to collect all output and send it to the GUI, instead | |
2108 | of the controlling terminal. Only output to gdb_stdout and | |
2109 | gdb_stderr are sent to the hook. Everything else is sent on to | |
2110 | fputs to allow file I/O to be handled appropriately. */ | |
2111 | ||
2112 | /* FIXME: Should be broken up and moved to a TUI specific file. */ | |
2113 | ||
2114 | void | |
2115 | tui_file_fputs (linebuffer, file) | |
2116 | const char *linebuffer; | |
2117 | GDB_FILE *file; | |
2118 | { | |
2119 | struct tui_stream *stream = gdb_file_data (file); | |
2120 | #if defined(TUI) | |
2121 | extern int tui_owns_terminal; | |
2122 | #endif | |
917317f4 JM |
2123 | /* NOTE: cagney/1999-10-13: The use of fputs_unfiltered_hook is |
2124 | seriously discouraged. Those wanting to hook output should | |
2125 | instead implement their own gdb_file object and install that. See | |
2126 | also tui_file_flush(). */ | |
104c1213 JM |
2127 | if (fputs_unfiltered_hook |
2128 | && (file == gdb_stdout | |
2129 | || file == gdb_stderr)) | |
2130 | fputs_unfiltered_hook (linebuffer, file); | |
2131 | else | |
2132 | { | |
2133 | #if defined(TUI) | |
2134 | if (tui_version && tui_owns_terminal) | |
2135 | { | |
2136 | /* If we get here somehow while updating the TUI (from | |
2137 | * within a tuiDo(), then we need to temporarily | |
2138 | * set up the terminal for GDB output. This probably just | |
2139 | * happens on error output. | |
2140 | */ | |
2141 | ||
2142 | if (stream->ts_streamtype == astring) | |
2143 | { | |
11cf8741 | 2144 | tui_file_adjust_strbuf (strlen (linebuffer), stream); |
104c1213 JM |
2145 | strcat (stream->ts_strbuf, linebuffer); |
2146 | } | |
2147 | else | |
2148 | { | |
2149 | tuiTermUnsetup (0, (tui_version) ? cmdWin->detail.commandInfo.curch : 0); | |
2150 | fputs (linebuffer, stream->ts_filestream); | |
2151 | tuiTermSetup (0); | |
2152 | if (linebuffer[strlen (linebuffer) - 1] == '\n') | |
2153 | tuiClearCommandCharCount (); | |
2154 | else | |
2155 | tuiIncrCommandCharCountBy (strlen (linebuffer)); | |
2156 | } | |
2157 | } | |
2158 | else | |
2159 | { | |
2160 | /* The normal case - just do a fputs() */ | |
2161 | if (stream->ts_streamtype == astring) | |
2162 | { | |
11cf8741 | 2163 | tui_file_adjust_strbuf (strlen (linebuffer), stream); |
104c1213 JM |
2164 | strcat (stream->ts_strbuf, linebuffer); |
2165 | } | |
2166 | else | |
2167 | fputs (linebuffer, stream->ts_filestream); | |
2168 | } | |
2169 | ||
2170 | ||
2171 | #else | |
2172 | if (stream->ts_streamtype == astring) | |
2173 | { | |
11cf8741 | 2174 | tui_file_adjust_strbuf (strlen (linebuffer), file); |
104c1213 JM |
2175 | strcat (stream->ts_strbuf, linebuffer); |
2176 | } | |
2177 | else | |
2178 | fputs (linebuffer, stream->ts_filestream); | |
2179 | #endif | |
2180 | } | |
2181 | } | |
2182 | ||
c906108c | 2183 | char * |
11cf8741 | 2184 | tui_file_get_strbuf (struct gdb_file *file) |
c906108c | 2185 | { |
ac9a91a7 JM |
2186 | struct tui_stream *stream = gdb_file_data (file); |
2187 | if (stream->ts_magic != &tui_file_magic) | |
11cf8741 | 2188 | internal_error ("tui_file_get_strbuf: bad magic number"); |
c906108c SS |
2189 | return (stream->ts_strbuf); |
2190 | } | |
2191 | ||
2192 | /* adjust the length of the buffer by the amount necessary | |
2193 | to accomodate appending a string of length N to the buffer contents */ | |
2194 | void | |
11cf8741 | 2195 | tui_file_adjust_strbuf (int n, struct gdb_file *file) |
c906108c | 2196 | { |
ac9a91a7 | 2197 | struct tui_stream *stream = gdb_file_data (file); |
c906108c | 2198 | int non_null_chars; |
ac9a91a7 | 2199 | if (stream->ts_magic != &tui_file_magic) |
11cf8741 | 2200 | internal_error ("tui_file_adjust_strbuf: bad magic number"); |
392a587b JM |
2201 | |
2202 | if (stream->ts_streamtype != astring) | |
2203 | return; | |
c5aa993b | 2204 | |
392a587b | 2205 | if (stream->ts_strbuf) |
c906108c | 2206 | { |
392a587b | 2207 | /* There is already a buffer allocated */ |
c5aa993b JM |
2208 | non_null_chars = strlen (stream->ts_strbuf); |
2209 | ||
2210 | if (n > (stream->ts_buflen - non_null_chars - 1)) | |
2211 | { | |
2212 | stream->ts_buflen = n + non_null_chars + 1; | |
2213 | stream->ts_strbuf = xrealloc (stream->ts_strbuf, stream->ts_buflen); | |
2214 | } | |
2215 | } | |
392a587b JM |
2216 | else |
2217 | /* No buffer yet, so allocate one of the desired size */ | |
2218 | stream->ts_strbuf = xmalloc ((n + 1) * sizeof (char)); | |
c5aa993b | 2219 | } |
c906108c SS |
2220 | |
2221 | GDB_FILE * | |
2222 | gdb_fopen (name, mode) | |
c5aa993b JM |
2223 | char *name; |
2224 | char *mode; | |
c906108c | 2225 | { |
ac9a91a7 JM |
2226 | FILE *f = fopen (name, mode); |
2227 | if (f == NULL) | |
2228 | return NULL; | |
2229 | return stdio_file_new (f, 1); | |
c906108c SS |
2230 | } |
2231 | ||
ac9a91a7 JM |
2232 | static void |
2233 | tui_file_flush (file) | |
2234 | GDB_FILE *file; | |
c906108c | 2235 | { |
ac9a91a7 JM |
2236 | struct tui_stream *stream = gdb_file_data (file); |
2237 | if (stream->ts_magic != &tui_file_magic) | |
917317f4 JM |
2238 | internal_error ("tui_file_flush: bad magic number"); |
2239 | ||
2240 | /* NOTE: cagney/1999-10-12: If we've been linked with code that uses | |
2241 | fputs_unfiltered_hook then we assume that it doesn't need to know | |
2242 | about flushes. Code that does need to know about flushes can | |
2243 | implement a proper gdb_file object. */ | |
2244 | if (fputs_unfiltered_hook) | |
2245 | return; | |
2246 | ||
2247 | switch (stream->ts_streamtype) | |
c906108c | 2248 | { |
917317f4 JM |
2249 | case astring: |
2250 | break; | |
2251 | case afile: | |
2252 | fflush (stream->ts_filestream); | |
2253 | break; | |
c906108c | 2254 | } |
c906108c SS |
2255 | } |
2256 | ||
ac9a91a7 JM |
2257 | /* Implement the ``struct gdb_file'' object. */ |
2258 | ||
2259 | static gdb_file_isatty_ftype null_file_isatty; | |
11cf8741 | 2260 | static gdb_file_write_ftype null_file_write; |
ac9a91a7 JM |
2261 | static gdb_file_fputs_ftype null_file_fputs; |
2262 | static gdb_file_flush_ftype null_file_flush; | |
2263 | static gdb_file_delete_ftype null_file_delete; | |
0f71a2f6 JM |
2264 | static gdb_file_rewind_ftype null_file_rewind; |
2265 | static gdb_file_put_ftype null_file_put; | |
ac9a91a7 JM |
2266 | |
2267 | struct gdb_file | |
c5aa993b | 2268 | { |
4ce44c66 | 2269 | int *magic; |
c5aa993b | 2270 | gdb_file_flush_ftype *to_flush; |
11cf8741 | 2271 | gdb_file_write_ftype *to_write; |
c5aa993b JM |
2272 | gdb_file_fputs_ftype *to_fputs; |
2273 | gdb_file_delete_ftype *to_delete; | |
2274 | gdb_file_isatty_ftype *to_isatty; | |
2275 | gdb_file_rewind_ftype *to_rewind; | |
2276 | gdb_file_put_ftype *to_put; | |
2277 | void *to_data; | |
2278 | }; | |
4ce44c66 | 2279 | int gdb_file_magic; |
ac9a91a7 JM |
2280 | |
2281 | struct gdb_file * | |
2282 | gdb_file_new () | |
2283 | { | |
2284 | struct gdb_file *file = xmalloc (sizeof (struct gdb_file)); | |
4ce44c66 | 2285 | file->magic = &gdb_file_magic; |
ac9a91a7 JM |
2286 | set_gdb_file_data (file, NULL, null_file_delete); |
2287 | set_gdb_file_flush (file, null_file_flush); | |
11cf8741 | 2288 | set_gdb_file_write (file, null_file_write); |
ac9a91a7 JM |
2289 | set_gdb_file_fputs (file, null_file_fputs); |
2290 | set_gdb_file_isatty (file, null_file_isatty); | |
0f71a2f6 JM |
2291 | set_gdb_file_rewind (file, null_file_rewind); |
2292 | set_gdb_file_put (file, null_file_put); | |
ac9a91a7 JM |
2293 | return file; |
2294 | } | |
c906108c | 2295 | |
ac9a91a7 JM |
2296 | void |
2297 | gdb_file_delete (file) | |
2298 | struct gdb_file *file; | |
2299 | { | |
2300 | file->to_delete (file); | |
2301 | free (file); | |
2302 | } | |
2303 | ||
2304 | static int | |
2305 | null_file_isatty (file) | |
2306 | struct gdb_file *file; | |
2307 | { | |
2308 | return 0; | |
2309 | } | |
2310 | ||
0f71a2f6 JM |
2311 | static void |
2312 | null_file_rewind (file) | |
2313 | struct gdb_file *file; | |
2314 | { | |
2315 | return; | |
2316 | } | |
2317 | ||
2318 | static void | |
4ce44c66 JM |
2319 | null_file_put (struct gdb_file *file, |
2320 | gdb_file_put_method_ftype *write, | |
2321 | void *dest) | |
0f71a2f6 JM |
2322 | { |
2323 | return; | |
2324 | } | |
2325 | ||
ac9a91a7 JM |
2326 | static void |
2327 | null_file_flush (file) | |
2328 | struct gdb_file *file; | |
2329 | { | |
2330 | return; | |
2331 | } | |
2332 | ||
11cf8741 JM |
2333 | static void |
2334 | null_file_write (struct gdb_file *file, | |
2335 | const char *buf, | |
2336 | long sizeof_buf) | |
2337 | { | |
2338 | if (file->to_fputs == null_file_fputs) | |
2339 | /* Both the write and fputs methods are null. Discard the | |
2340 | request. */ | |
2341 | return; | |
2342 | else | |
2343 | { | |
2344 | /* The fputs method isn't null, slowly pass the write request | |
2345 | onto that. FYI, this isn't as bad as it may look - the | |
2346 | current (as of 1999-11-07) printf_* function calls fputc and | |
2347 | fputc does exactly the below. By having a write function it | |
2348 | is possible to clean up that code. */ | |
2349 | int i; | |
2350 | char b[2]; | |
2351 | b[1] = '\0'; | |
2352 | for (i = 0; i < sizeof_buf; i++) | |
2353 | { | |
2354 | b[0] = buf[i]; | |
2355 | file->to_fputs (b, file); | |
2356 | } | |
2357 | return; | |
2358 | } | |
2359 | } | |
2360 | ||
ac9a91a7 JM |
2361 | static void |
2362 | null_file_fputs (buf, file) | |
2363 | const char *buf; | |
2364 | struct gdb_file *file; | |
2365 | { | |
11cf8741 JM |
2366 | if (file->to_write == null_file_write) |
2367 | /* Both the write and fputs methods are null. Discard the | |
2368 | request. */ | |
2369 | return; | |
2370 | else | |
2371 | { | |
2372 | /* The write method was implemented, use that. */ | |
2373 | file->to_write (file, buf, strlen (buf)); | |
2374 | } | |
ac9a91a7 JM |
2375 | } |
2376 | ||
2377 | static void | |
2378 | null_file_delete (file) | |
2379 | struct gdb_file *file; | |
2380 | { | |
2381 | return; | |
2382 | } | |
2383 | ||
2384 | void * | |
2385 | gdb_file_data (file) | |
2386 | struct gdb_file *file; | |
2387 | { | |
4ce44c66 JM |
2388 | if (file->magic != &gdb_file_magic) |
2389 | internal_error ("gdb_file_data: bad magic number"); | |
ac9a91a7 JM |
2390 | return file->to_data; |
2391 | } | |
2392 | ||
2393 | void | |
2394 | gdb_flush (file) | |
2395 | struct gdb_file *file; | |
2396 | { | |
2397 | file->to_flush (file); | |
2398 | } | |
2399 | ||
2400 | int | |
2401 | gdb_file_isatty (file) | |
2402 | struct gdb_file *file; | |
2403 | { | |
2404 | return file->to_isatty (file); | |
2405 | } | |
2406 | ||
0f71a2f6 JM |
2407 | void |
2408 | gdb_file_rewind (file) | |
2409 | struct gdb_file *file; | |
2410 | { | |
085dd6e6 | 2411 | file->to_rewind (file); |
0f71a2f6 JM |
2412 | } |
2413 | ||
2414 | void | |
4ce44c66 JM |
2415 | gdb_file_put (struct gdb_file *file, |
2416 | gdb_file_put_method_ftype *write, | |
2417 | void *dest) | |
0f71a2f6 | 2418 | { |
4ce44c66 | 2419 | file->to_put (file, write, dest); |
0f71a2f6 JM |
2420 | } |
2421 | ||
11cf8741 JM |
2422 | void |
2423 | gdb_file_write (struct gdb_file *file, | |
2424 | const char *buf, | |
2425 | long length_buf) | |
2426 | { | |
2427 | file->to_write (file, buf, length_buf); | |
2428 | } | |
2429 | ||
ac9a91a7 JM |
2430 | void |
2431 | fputs_unfiltered (buf, file) | |
2432 | const char *buf; | |
2433 | struct gdb_file *file; | |
2434 | { | |
2435 | file->to_fputs (buf, file); | |
2436 | } | |
2437 | ||
2438 | void | |
2439 | set_gdb_file_flush (file, flush) | |
2440 | struct gdb_file *file; | |
2441 | gdb_file_flush_ftype *flush; | |
2442 | { | |
2443 | file->to_flush = flush; | |
2444 | } | |
2445 | ||
2446 | void | |
2447 | set_gdb_file_isatty (file, isatty) | |
2448 | struct gdb_file *file; | |
2449 | gdb_file_isatty_ftype *isatty; | |
2450 | { | |
2451 | file->to_isatty = isatty; | |
2452 | } | |
2453 | ||
0f71a2f6 JM |
2454 | void |
2455 | set_gdb_file_rewind (file, rewind) | |
2456 | struct gdb_file *file; | |
2457 | gdb_file_rewind_ftype *rewind; | |
2458 | { | |
2459 | file->to_rewind = rewind; | |
2460 | } | |
2461 | ||
2462 | void | |
2463 | set_gdb_file_put (file, put) | |
2464 | struct gdb_file *file; | |
2465 | gdb_file_put_ftype *put; | |
2466 | { | |
2467 | file->to_put = put; | |
2468 | } | |
2469 | ||
11cf8741 JM |
2470 | void |
2471 | set_gdb_file_write (struct gdb_file *file, | |
2472 | gdb_file_write_ftype *write) | |
2473 | { | |
2474 | file->to_write = write; | |
2475 | } | |
2476 | ||
ac9a91a7 JM |
2477 | void |
2478 | set_gdb_file_fputs (file, fputs) | |
2479 | struct gdb_file *file; | |
2480 | gdb_file_fputs_ftype *fputs; | |
2481 | { | |
2482 | file->to_fputs = fputs; | |
2483 | } | |
2484 | ||
2485 | void | |
2486 | set_gdb_file_data (file, data, delete) | |
2487 | struct gdb_file *file; | |
2488 | void *data; | |
2489 | gdb_file_delete_ftype *delete; | |
2490 | { | |
2491 | file->to_data = data; | |
2492 | file->to_delete = delete; | |
c906108c SS |
2493 | } |
2494 | ||
4ce44c66 JM |
2495 | /* gdb_file utility function for converting a ``struct gdb_file'' into |
2496 | a memory buffer''. */ | |
2497 | ||
2498 | struct accumulated_gdb_file | |
2499 | { | |
2500 | char *buffer; | |
2501 | long length; | |
2502 | }; | |
2503 | ||
2504 | static void | |
2505 | do_gdb_file_xstrdup (void *context, const char *buffer, long length) | |
2506 | { | |
2507 | struct accumulated_gdb_file *acc = context; | |
2508 | if (acc->buffer == NULL) | |
2509 | acc->buffer = xmalloc (length + 1); | |
2510 | else | |
2511 | acc->buffer = xrealloc (acc->buffer, acc->length + length + 1); | |
2512 | memcpy (acc->buffer + acc->length, buffer, length); | |
2513 | acc->length += length; | |
2514 | acc->buffer[acc->length] = '\0'; | |
2515 | } | |
2516 | ||
2517 | char * | |
2518 | gdb_file_xstrdup (struct gdb_file *file, | |
2519 | long *length) | |
2520 | { | |
2521 | struct accumulated_gdb_file acc; | |
2522 | acc.buffer = NULL; | |
2523 | acc.length = 0; | |
2524 | gdb_file_put (file, do_gdb_file_xstrdup, &acc); | |
2525 | if (acc.buffer == NULL) | |
2526 | acc.buffer = xstrdup (""); | |
2527 | *length = acc.length; | |
2528 | return acc.buffer; | |
2529 | } | |
2530 | ||
2531 | ||
c906108c SS |
2532 | /* Like fputs but if FILTER is true, pause after every screenful. |
2533 | ||
2534 | Regardless of FILTER can wrap at points other than the final | |
2535 | character of a line. | |
2536 | ||
2537 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
2538 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
2539 | anything. | |
2540 | ||
2541 | Note that a longjmp to top level may occur in this routine (only if | |
2542 | FILTER is true) (since prompt_for_continue may do so) so this | |
2543 | routine should not be called when cleanups are not in place. */ | |
2544 | ||
2545 | static void | |
2546 | fputs_maybe_filtered (linebuffer, stream, filter) | |
2547 | const char *linebuffer; | |
2548 | GDB_FILE *stream; | |
2549 | int filter; | |
2550 | { | |
2551 | const char *lineptr; | |
2552 | ||
2553 | if (linebuffer == 0) | |
2554 | return; | |
2555 | ||
2556 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 2557 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 2558 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
2559 | { |
2560 | fputs_unfiltered (linebuffer, stream); | |
2561 | return; | |
2562 | } | |
2563 | ||
2564 | /* Go through and output each character. Show line extension | |
2565 | when this is necessary; prompt user for new page when this is | |
2566 | necessary. */ | |
c5aa993b | 2567 | |
c906108c SS |
2568 | lineptr = linebuffer; |
2569 | while (*lineptr) | |
2570 | { | |
2571 | /* Possible new page. */ | |
2572 | if (filter && | |
2573 | (lines_printed >= lines_per_page - 1)) | |
2574 | prompt_for_continue (); | |
2575 | ||
2576 | while (*lineptr && *lineptr != '\n') | |
2577 | { | |
2578 | /* Print a single line. */ | |
2579 | if (*lineptr == '\t') | |
2580 | { | |
2581 | if (wrap_column) | |
2582 | *wrap_pointer++ = '\t'; | |
2583 | else | |
2584 | fputc_unfiltered ('\t', stream); | |
2585 | /* Shifting right by 3 produces the number of tab stops | |
2586 | we have already passed, and then adding one and | |
c5aa993b | 2587 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
2588 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
2589 | lineptr++; | |
2590 | } | |
2591 | else | |
2592 | { | |
2593 | if (wrap_column) | |
2594 | *wrap_pointer++ = *lineptr; | |
2595 | else | |
c5aa993b | 2596 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
2597 | chars_printed++; |
2598 | lineptr++; | |
2599 | } | |
c5aa993b | 2600 | |
c906108c SS |
2601 | if (chars_printed >= chars_per_line) |
2602 | { | |
2603 | unsigned int save_chars = chars_printed; | |
2604 | ||
2605 | chars_printed = 0; | |
2606 | lines_printed++; | |
2607 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
2608 | if chars_per_line is right, we probably just overflowed |
2609 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
2610 | if (wrap_column) |
2611 | fputc_unfiltered ('\n', stream); | |
2612 | ||
2613 | /* Possible new page. */ | |
2614 | if (lines_printed >= lines_per_page - 1) | |
2615 | prompt_for_continue (); | |
2616 | ||
2617 | /* Now output indentation and wrapped string */ | |
2618 | if (wrap_column) | |
2619 | { | |
2620 | fputs_unfiltered (wrap_indent, stream); | |
c5aa993b JM |
2621 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
2622 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
c906108c SS |
2623 | /* FIXME, this strlen is what prevents wrap_indent from |
2624 | containing tabs. However, if we recurse to print it | |
2625 | and count its chars, we risk trouble if wrap_indent is | |
2626 | longer than (the user settable) chars_per_line. | |
2627 | Note also that this can set chars_printed > chars_per_line | |
2628 | if we are printing a long string. */ | |
2629 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 2630 | + (save_chars - wrap_column); |
c906108c SS |
2631 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
2632 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
2633 | wrap_column = 0; /* And disable fancy wrap */ |
2634 | } | |
c906108c SS |
2635 | } |
2636 | } | |
2637 | ||
2638 | if (*lineptr == '\n') | |
2639 | { | |
2640 | chars_printed = 0; | |
c5aa993b | 2641 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
2642 | lines_printed++; |
2643 | fputc_unfiltered ('\n', stream); | |
2644 | lineptr++; | |
2645 | } | |
2646 | } | |
2647 | } | |
2648 | ||
2649 | void | |
2650 | fputs_filtered (linebuffer, stream) | |
2651 | const char *linebuffer; | |
2652 | GDB_FILE *stream; | |
2653 | { | |
2654 | fputs_maybe_filtered (linebuffer, stream, 1); | |
2655 | } | |
2656 | ||
2657 | int | |
2658 | putchar_unfiltered (c) | |
2659 | int c; | |
2660 | { | |
11cf8741 JM |
2661 | char buf = c; |
2662 | gdb_file_write (gdb_stdout, &buf, 1); | |
c906108c SS |
2663 | return c; |
2664 | } | |
2665 | ||
2666 | int | |
2667 | fputc_unfiltered (c, stream) | |
2668 | int c; | |
c5aa993b | 2669 | GDB_FILE *stream; |
c906108c | 2670 | { |
11cf8741 JM |
2671 | char buf = c; |
2672 | gdb_file_write (stream, &buf, 1); | |
c906108c SS |
2673 | return c; |
2674 | } | |
2675 | ||
2676 | int | |
2677 | fputc_filtered (c, stream) | |
2678 | int c; | |
c5aa993b | 2679 | GDB_FILE *stream; |
c906108c SS |
2680 | { |
2681 | char buf[2]; | |
2682 | ||
2683 | buf[0] = c; | |
2684 | buf[1] = 0; | |
2685 | fputs_filtered (buf, stream); | |
2686 | return c; | |
2687 | } | |
2688 | ||
2689 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2690 | characters in printable fashion. */ | |
2691 | ||
2692 | void | |
2693 | puts_debug (prefix, string, suffix) | |
2694 | char *prefix; | |
2695 | char *string; | |
2696 | char *suffix; | |
2697 | { | |
2698 | int ch; | |
2699 | ||
2700 | /* Print prefix and suffix after each line. */ | |
2701 | static int new_line = 1; | |
2702 | static int return_p = 0; | |
2703 | static char *prev_prefix = ""; | |
2704 | static char *prev_suffix = ""; | |
2705 | ||
2706 | if (*string == '\n') | |
2707 | return_p = 0; | |
2708 | ||
2709 | /* If the prefix is changing, print the previous suffix, a new line, | |
2710 | and the new prefix. */ | |
c5aa993b | 2711 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2712 | { |
9846de1b JM |
2713 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2714 | fputs_unfiltered ("\n", gdb_stdlog); | |
2715 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2716 | } |
2717 | ||
2718 | /* Print prefix if we printed a newline during the previous call. */ | |
2719 | if (new_line) | |
2720 | { | |
2721 | new_line = 0; | |
9846de1b | 2722 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2723 | } |
2724 | ||
2725 | prev_prefix = prefix; | |
2726 | prev_suffix = suffix; | |
2727 | ||
2728 | /* Output characters in a printable format. */ | |
2729 | while ((ch = *string++) != '\0') | |
2730 | { | |
2731 | switch (ch) | |
c5aa993b | 2732 | { |
c906108c SS |
2733 | default: |
2734 | if (isprint (ch)) | |
9846de1b | 2735 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2736 | |
2737 | else | |
9846de1b | 2738 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2739 | break; |
2740 | ||
c5aa993b JM |
2741 | case '\\': |
2742 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2743 | break; | |
2744 | case '\b': | |
2745 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2746 | break; | |
2747 | case '\f': | |
2748 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2749 | break; | |
2750 | case '\n': | |
2751 | new_line = 1; | |
2752 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2753 | break; | |
2754 | case '\r': | |
2755 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2756 | break; | |
2757 | case '\t': | |
2758 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2759 | break; | |
2760 | case '\v': | |
2761 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2762 | break; | |
2763 | } | |
c906108c SS |
2764 | |
2765 | return_p = ch == '\r'; | |
2766 | } | |
2767 | ||
2768 | /* Print suffix if we printed a newline. */ | |
2769 | if (new_line) | |
2770 | { | |
9846de1b JM |
2771 | fputs_unfiltered (suffix, gdb_stdlog); |
2772 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2773 | } |
2774 | } | |
2775 | ||
2776 | ||
2777 | /* Print a variable number of ARGS using format FORMAT. If this | |
2778 | information is going to put the amount written (since the last call | |
2779 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2780 | call prompt_for_continue to get the users permision to continue. | |
2781 | ||
2782 | Unlike fprintf, this function does not return a value. | |
2783 | ||
2784 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2785 | fprintf (takes a stream to write on), and printf (the usual). | |
2786 | ||
2787 | Note also that a longjmp to top level may occur in this routine | |
2788 | (since prompt_for_continue may do so) so this routine should not be | |
2789 | called when cleanups are not in place. */ | |
2790 | ||
2791 | static void | |
2792 | vfprintf_maybe_filtered (stream, format, args, filter) | |
2793 | GDB_FILE *stream; | |
2794 | const char *format; | |
2795 | va_list args; | |
2796 | int filter; | |
2797 | { | |
2798 | char *linebuffer; | |
2799 | struct cleanup *old_cleanups; | |
2800 | ||
2801 | vasprintf (&linebuffer, format, args); | |
2802 | if (linebuffer == NULL) | |
2803 | { | |
2804 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
2805 | exit (1); | |
2806 | } | |
2807 | old_cleanups = make_cleanup (free, linebuffer); | |
2808 | fputs_maybe_filtered (linebuffer, stream, filter); | |
2809 | do_cleanups (old_cleanups); | |
2810 | } | |
2811 | ||
2812 | ||
2813 | void | |
2814 | vfprintf_filtered (stream, format, args) | |
2815 | GDB_FILE *stream; | |
2816 | const char *format; | |
2817 | va_list args; | |
2818 | { | |
2819 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2820 | } | |
2821 | ||
2822 | void | |
2823 | vfprintf_unfiltered (stream, format, args) | |
2824 | GDB_FILE *stream; | |
2825 | const char *format; | |
2826 | va_list args; | |
2827 | { | |
2828 | char *linebuffer; | |
2829 | struct cleanup *old_cleanups; | |
2830 | ||
2831 | vasprintf (&linebuffer, format, args); | |
2832 | if (linebuffer == NULL) | |
2833 | { | |
2834 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
2835 | exit (1); | |
2836 | } | |
2837 | old_cleanups = make_cleanup (free, linebuffer); | |
2838 | fputs_unfiltered (linebuffer, stream); | |
2839 | do_cleanups (old_cleanups); | |
2840 | } | |
2841 | ||
2842 | void | |
2843 | vprintf_filtered (format, args) | |
2844 | const char *format; | |
2845 | va_list args; | |
2846 | { | |
2847 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2848 | } | |
2849 | ||
2850 | void | |
2851 | vprintf_unfiltered (format, args) | |
2852 | const char *format; | |
2853 | va_list args; | |
2854 | { | |
2855 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2856 | } | |
2857 | ||
c906108c | 2858 | void |
c5aa993b | 2859 | fprintf_filtered (GDB_FILE * stream, const char *format,...) |
c906108c SS |
2860 | { |
2861 | va_list args; | |
c906108c | 2862 | va_start (args, format); |
c906108c SS |
2863 | vfprintf_filtered (stream, format, args); |
2864 | va_end (args); | |
2865 | } | |
2866 | ||
c906108c | 2867 | void |
c5aa993b | 2868 | fprintf_unfiltered (GDB_FILE * stream, const char *format,...) |
c906108c SS |
2869 | { |
2870 | va_list args; | |
c906108c | 2871 | va_start (args, format); |
c906108c SS |
2872 | vfprintf_unfiltered (stream, format, args); |
2873 | va_end (args); | |
2874 | } | |
2875 | ||
2876 | /* Like fprintf_filtered, but prints its result indented. | |
2877 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2878 | ||
c906108c | 2879 | void |
c5aa993b | 2880 | fprintfi_filtered (int spaces, GDB_FILE * stream, const char *format,...) |
c906108c SS |
2881 | { |
2882 | va_list args; | |
c906108c | 2883 | va_start (args, format); |
c906108c SS |
2884 | print_spaces_filtered (spaces, stream); |
2885 | ||
2886 | vfprintf_filtered (stream, format, args); | |
2887 | va_end (args); | |
2888 | } | |
2889 | ||
2890 | ||
c906108c | 2891 | void |
c5aa993b | 2892 | printf_filtered (const char *format,...) |
c906108c SS |
2893 | { |
2894 | va_list args; | |
c906108c | 2895 | va_start (args, format); |
c906108c SS |
2896 | vfprintf_filtered (gdb_stdout, format, args); |
2897 | va_end (args); | |
2898 | } | |
2899 | ||
2900 | ||
c906108c | 2901 | void |
c5aa993b | 2902 | printf_unfiltered (const char *format,...) |
c906108c SS |
2903 | { |
2904 | va_list args; | |
c906108c | 2905 | va_start (args, format); |
c906108c SS |
2906 | vfprintf_unfiltered (gdb_stdout, format, args); |
2907 | va_end (args); | |
2908 | } | |
2909 | ||
2910 | /* Like printf_filtered, but prints it's result indented. | |
2911 | Called as printfi_filtered (spaces, format, ...); */ | |
2912 | ||
c906108c | 2913 | void |
c5aa993b | 2914 | printfi_filtered (int spaces, const char *format,...) |
c906108c SS |
2915 | { |
2916 | va_list args; | |
c906108c | 2917 | va_start (args, format); |
c906108c SS |
2918 | print_spaces_filtered (spaces, gdb_stdout); |
2919 | vfprintf_filtered (gdb_stdout, format, args); | |
2920 | va_end (args); | |
2921 | } | |
2922 | ||
2923 | /* Easy -- but watch out! | |
2924 | ||
2925 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2926 | This one doesn't, and had better not! */ | |
2927 | ||
2928 | void | |
2929 | puts_filtered (string) | |
2930 | const char *string; | |
2931 | { | |
2932 | fputs_filtered (string, gdb_stdout); | |
2933 | } | |
2934 | ||
2935 | void | |
2936 | puts_unfiltered (string) | |
2937 | const char *string; | |
2938 | { | |
2939 | fputs_unfiltered (string, gdb_stdout); | |
2940 | } | |
2941 | ||
2942 | /* Return a pointer to N spaces and a null. The pointer is good | |
2943 | until the next call to here. */ | |
2944 | char * | |
2945 | n_spaces (n) | |
2946 | int n; | |
2947 | { | |
392a587b JM |
2948 | char *t; |
2949 | static char *spaces = 0; | |
2950 | static int max_spaces = -1; | |
c906108c SS |
2951 | |
2952 | if (n > max_spaces) | |
2953 | { | |
2954 | if (spaces) | |
2955 | free (spaces); | |
c5aa993b JM |
2956 | spaces = (char *) xmalloc (n + 1); |
2957 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2958 | *--t = ' '; |
2959 | spaces[n] = '\0'; | |
2960 | max_spaces = n; | |
2961 | } | |
2962 | ||
2963 | return spaces + max_spaces - n; | |
2964 | } | |
2965 | ||
2966 | /* Print N spaces. */ | |
2967 | void | |
2968 | print_spaces_filtered (n, stream) | |
2969 | int n; | |
2970 | GDB_FILE *stream; | |
2971 | { | |
2972 | fputs_filtered (n_spaces (n), stream); | |
2973 | } | |
2974 | \f | |
2975 | /* C++ demangler stuff. */ | |
2976 | ||
2977 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language | |
2978 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2979 | If the name is not mangled, or the language for the name is unknown, or | |
2980 | demangling is off, the name is printed in its "raw" form. */ | |
2981 | ||
2982 | void | |
2983 | fprintf_symbol_filtered (stream, name, lang, arg_mode) | |
2984 | GDB_FILE *stream; | |
2985 | char *name; | |
2986 | enum language lang; | |
2987 | int arg_mode; | |
2988 | { | |
2989 | char *demangled; | |
2990 | ||
2991 | if (name != NULL) | |
2992 | { | |
2993 | /* If user wants to see raw output, no problem. */ | |
2994 | if (!demangle) | |
2995 | { | |
2996 | fputs_filtered (name, stream); | |
2997 | } | |
2998 | else | |
2999 | { | |
3000 | switch (lang) | |
3001 | { | |
3002 | case language_cplus: | |
3003 | demangled = cplus_demangle (name, arg_mode); | |
3004 | break; | |
3005 | case language_java: | |
3006 | demangled = cplus_demangle (name, arg_mode | DMGL_JAVA); | |
3007 | break; | |
3008 | case language_chill: | |
3009 | demangled = chill_demangle (name); | |
3010 | break; | |
3011 | default: | |
3012 | demangled = NULL; | |
3013 | break; | |
3014 | } | |
3015 | fputs_filtered (demangled ? demangled : name, stream); | |
3016 | if (demangled != NULL) | |
3017 | { | |
3018 | free (demangled); | |
3019 | } | |
3020 | } | |
3021 | } | |
3022 | } | |
3023 | ||
3024 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
3025 | differences in whitespace. Returns 0 if they match, non-zero if they | |
3026 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 3027 | |
c906108c SS |
3028 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
3029 | This "feature" is useful when searching for matching C++ function names | |
3030 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
3031 | function). */ | |
3032 | ||
3033 | int | |
3034 | strcmp_iw (string1, string2) | |
3035 | const char *string1; | |
3036 | const char *string2; | |
3037 | { | |
3038 | while ((*string1 != '\0') && (*string2 != '\0')) | |
3039 | { | |
3040 | while (isspace (*string1)) | |
3041 | { | |
3042 | string1++; | |
3043 | } | |
3044 | while (isspace (*string2)) | |
3045 | { | |
3046 | string2++; | |
3047 | } | |
3048 | if (*string1 != *string2) | |
3049 | { | |
3050 | break; | |
3051 | } | |
3052 | if (*string1 != '\0') | |
3053 | { | |
3054 | string1++; | |
3055 | string2++; | |
3056 | } | |
3057 | } | |
3058 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
3059 | } | |
c906108c | 3060 | \f |
c5aa993b | 3061 | |
c906108c | 3062 | /* |
c5aa993b JM |
3063 | ** subset_compare() |
3064 | ** Answer whether string_to_compare is a full or partial match to | |
3065 | ** template_string. The partial match must be in sequence starting | |
3066 | ** at index 0. | |
3067 | */ | |
c906108c | 3068 | int |
7a292a7a | 3069 | subset_compare (string_to_compare, template_string) |
c5aa993b JM |
3070 | char *string_to_compare; |
3071 | char *template_string; | |
7a292a7a SS |
3072 | { |
3073 | int match; | |
c5aa993b JM |
3074 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL && |
3075 | strlen (string_to_compare) <= strlen (template_string)) | |
3076 | match = (strncmp (template_string, | |
3077 | string_to_compare, | |
3078 | strlen (string_to_compare)) == 0); | |
7a292a7a SS |
3079 | else |
3080 | match = 0; | |
3081 | return match; | |
3082 | } | |
c906108c SS |
3083 | |
3084 | ||
7a292a7a SS |
3085 | static void pagination_on_command PARAMS ((char *arg, int from_tty)); |
3086 | static void | |
3087 | pagination_on_command (arg, from_tty) | |
c5aa993b JM |
3088 | char *arg; |
3089 | int from_tty; | |
c906108c SS |
3090 | { |
3091 | pagination_enabled = 1; | |
3092 | } | |
3093 | ||
7a292a7a SS |
3094 | static void pagination_on_command PARAMS ((char *arg, int from_tty)); |
3095 | static void | |
3096 | pagination_off_command (arg, from_tty) | |
c5aa993b JM |
3097 | char *arg; |
3098 | int from_tty; | |
c906108c SS |
3099 | { |
3100 | pagination_enabled = 0; | |
3101 | } | |
c906108c | 3102 | \f |
c5aa993b | 3103 | |
c906108c SS |
3104 | void |
3105 | initialize_utils () | |
3106 | { | |
3107 | struct cmd_list_element *c; | |
3108 | ||
c5aa993b JM |
3109 | c = add_set_cmd ("width", class_support, var_uinteger, |
3110 | (char *) &chars_per_line, | |
3111 | "Set number of characters gdb thinks are in a line.", | |
3112 | &setlist); | |
c906108c SS |
3113 | add_show_from_set (c, &showlist); |
3114 | c->function.sfunc = set_width_command; | |
3115 | ||
3116 | add_show_from_set | |
3117 | (add_set_cmd ("height", class_support, | |
c5aa993b | 3118 | var_uinteger, (char *) &lines_per_page, |
c906108c SS |
3119 | "Set number of lines gdb thinks are in a page.", &setlist), |
3120 | &showlist); | |
c5aa993b | 3121 | |
c906108c SS |
3122 | init_page_info (); |
3123 | ||
3124 | /* If the output is not a terminal, don't paginate it. */ | |
3125 | if (!GDB_FILE_ISATTY (gdb_stdout)) | |
3126 | lines_per_page = UINT_MAX; | |
3127 | ||
c5aa993b | 3128 | set_width_command ((char *) NULL, 0, c); |
c906108c SS |
3129 | |
3130 | add_show_from_set | |
c5aa993b JM |
3131 | (add_set_cmd ("demangle", class_support, var_boolean, |
3132 | (char *) &demangle, | |
3133 | "Set demangling of encoded C++ names when displaying symbols.", | |
c906108c SS |
3134 | &setprintlist), |
3135 | &showprintlist); | |
3136 | ||
3137 | add_show_from_set | |
3138 | (add_set_cmd ("pagination", class_support, | |
c5aa993b | 3139 | var_boolean, (char *) &pagination_enabled, |
c906108c SS |
3140 | "Set state of pagination.", &setlist), |
3141 | &showlist); | |
3142 | if (xdb_commands) | |
3143 | { | |
c5aa993b JM |
3144 | add_com ("am", class_support, pagination_on_command, |
3145 | "Enable pagination"); | |
3146 | add_com ("sm", class_support, pagination_off_command, | |
3147 | "Disable pagination"); | |
c906108c SS |
3148 | } |
3149 | ||
3150 | add_show_from_set | |
c5aa993b JM |
3151 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, |
3152 | (char *) &sevenbit_strings, | |
3153 | "Set printing of 8-bit characters in strings as \\nnn.", | |
c906108c SS |
3154 | &setprintlist), |
3155 | &showprintlist); | |
3156 | ||
3157 | add_show_from_set | |
c5aa993b JM |
3158 | (add_set_cmd ("asm-demangle", class_support, var_boolean, |
3159 | (char *) &asm_demangle, | |
3160 | "Set demangling of C++ names in disassembly listings.", | |
c906108c SS |
3161 | &setprintlist), |
3162 | &showprintlist); | |
3163 | } | |
3164 | ||
3165 | /* Machine specific function to handle SIGWINCH signal. */ | |
3166 | ||
3167 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 3168 | SIGWINCH_HANDLER_BODY |
c906108c SS |
3169 | #endif |
3170 | \f | |
3171 | /* Support for converting target fp numbers into host DOUBLEST format. */ | |
3172 | ||
3173 | /* XXX - This code should really be in libiberty/floatformat.c, however | |
3174 | configuration issues with libiberty made this very difficult to do in the | |
3175 | available time. */ | |
3176 | ||
3177 | #include "floatformat.h" | |
3178 | #include <math.h> /* ldexp */ | |
3179 | ||
3180 | /* The odds that CHAR_BIT will be anything but 8 are low enough that I'm not | |
3181 | going to bother with trying to muck around with whether it is defined in | |
3182 | a system header, what we do if not, etc. */ | |
3183 | #define FLOATFORMAT_CHAR_BIT 8 | |
3184 | ||
3185 | static unsigned long get_field PARAMS ((unsigned char *, | |
3186 | enum floatformat_byteorders, | |
3187 | unsigned int, | |
3188 | unsigned int, | |
3189 | unsigned int)); | |
3190 | ||
3191 | /* Extract a field which starts at START and is LEN bytes long. DATA and | |
3192 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
3193 | static unsigned long | |
3194 | get_field (data, order, total_len, start, len) | |
3195 | unsigned char *data; | |
3196 | enum floatformat_byteorders order; | |
3197 | unsigned int total_len; | |
3198 | unsigned int start; | |
3199 | unsigned int len; | |
3200 | { | |
3201 | unsigned long result; | |
3202 | unsigned int cur_byte; | |
3203 | int cur_bitshift; | |
3204 | ||
3205 | /* Start at the least significant part of the field. */ | |
3206 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
3207 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3208 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
3209 | cur_bitshift = | |
3210 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
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 | /* Move towards the most significant part of the field. */ | |
3219 | while (cur_bitshift < len) | |
3220 | { | |
3221 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
3222 | /* This is the last byte; zero out the bits which are not part of | |
3223 | this field. */ | |
3224 | result |= | |
3225 | (*(data + cur_byte) & ((1 << (len - cur_bitshift)) - 1)) | |
c5aa993b | 3226 | << cur_bitshift; |
c906108c SS |
3227 | else |
3228 | result |= *(data + cur_byte) << cur_bitshift; | |
3229 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3230 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3231 | ++cur_byte; | |
3232 | else | |
3233 | --cur_byte; | |
3234 | } | |
3235 | return result; | |
3236 | } | |
c5aa993b | 3237 | |
c906108c SS |
3238 | /* Convert from FMT to a DOUBLEST. |
3239 | FROM is the address of the extended float. | |
3240 | Store the DOUBLEST in *TO. */ | |
3241 | ||
3242 | void | |
3243 | floatformat_to_doublest (fmt, from, to) | |
3244 | const struct floatformat *fmt; | |
3245 | char *from; | |
3246 | DOUBLEST *to; | |
3247 | { | |
c5aa993b | 3248 | unsigned char *ufrom = (unsigned char *) from; |
c906108c SS |
3249 | DOUBLEST dto; |
3250 | long exponent; | |
3251 | unsigned long mant; | |
3252 | unsigned int mant_bits, mant_off; | |
3253 | int mant_bits_left; | |
3254 | int special_exponent; /* It's a NaN, denorm or zero */ | |
3255 | ||
3256 | /* If the mantissa bits are not contiguous from one end of the | |
3257 | mantissa to the other, we need to make a private copy of the | |
3258 | source bytes that is in the right order since the unpacking | |
3259 | algorithm assumes that the bits are contiguous. | |
3260 | ||
3261 | Swap the bytes individually rather than accessing them through | |
3262 | "long *" since we have no guarantee that they start on a long | |
3263 | alignment, and also sizeof(long) for the host could be different | |
3264 | than sizeof(long) for the target. FIXME: Assumes sizeof(long) | |
3265 | for the target is 4. */ | |
3266 | ||
c5aa993b | 3267 | if (fmt->byteorder == floatformat_littlebyte_bigword) |
c906108c SS |
3268 | { |
3269 | static unsigned char *newfrom; | |
3270 | unsigned char *swapin, *swapout; | |
3271 | int longswaps; | |
3272 | ||
c5aa993b | 3273 | longswaps = fmt->totalsize / FLOATFORMAT_CHAR_BIT; |
c906108c | 3274 | longswaps >>= 3; |
c5aa993b | 3275 | |
c906108c SS |
3276 | if (newfrom == NULL) |
3277 | { | |
c5aa993b | 3278 | newfrom = (unsigned char *) xmalloc (fmt->totalsize); |
c906108c SS |
3279 | } |
3280 | swapout = newfrom; | |
3281 | swapin = ufrom; | |
3282 | ufrom = newfrom; | |
3283 | while (longswaps-- > 0) | |
3284 | { | |
3285 | /* This is ugly, but efficient */ | |
3286 | *swapout++ = swapin[4]; | |
3287 | *swapout++ = swapin[5]; | |
3288 | *swapout++ = swapin[6]; | |
3289 | *swapout++ = swapin[7]; | |
3290 | *swapout++ = swapin[0]; | |
3291 | *swapout++ = swapin[1]; | |
3292 | *swapout++ = swapin[2]; | |
3293 | *swapout++ = swapin[3]; | |
3294 | swapin += 8; | |
3295 | } | |
3296 | } | |
3297 | ||
3298 | exponent = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
3299 | fmt->exp_start, fmt->exp_len); | |
3300 | /* Note that if exponent indicates a NaN, we can't really do anything useful | |
3301 | (not knowing if the host has NaN's, or how to build one). So it will | |
3302 | end up as an infinity or something close; that is OK. */ | |
3303 | ||
3304 | mant_bits_left = fmt->man_len; | |
3305 | mant_off = fmt->man_start; | |
3306 | dto = 0.0; | |
3307 | ||
3308 | special_exponent = exponent == 0 || exponent == fmt->exp_nan; | |
3309 | ||
11cf8741 JM |
3310 | /* Don't bias NaNs. Use minimum exponent for denorms. For simplicity, |
3311 | we don't check for zero as the exponent doesn't matter. */ | |
c906108c SS |
3312 | if (!special_exponent) |
3313 | exponent -= fmt->exp_bias; | |
11cf8741 JM |
3314 | else if (exponent == 0) |
3315 | exponent = 1 - fmt->exp_bias; | |
c906108c SS |
3316 | |
3317 | /* Build the result algebraically. Might go infinite, underflow, etc; | |
3318 | who cares. */ | |
3319 | ||
3320 | /* If this format uses a hidden bit, explicitly add it in now. Otherwise, | |
3321 | increment the exponent by one to account for the integer bit. */ | |
3322 | ||
3323 | if (!special_exponent) | |
7a292a7a SS |
3324 | { |
3325 | if (fmt->intbit == floatformat_intbit_no) | |
3326 | dto = ldexp (1.0, exponent); | |
3327 | else | |
3328 | exponent++; | |
3329 | } | |
c906108c SS |
3330 | |
3331 | while (mant_bits_left > 0) | |
3332 | { | |
3333 | mant_bits = min (mant_bits_left, 32); | |
3334 | ||
3335 | mant = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
c5aa993b | 3336 | mant_off, mant_bits); |
c906108c | 3337 | |
c5aa993b | 3338 | dto += ldexp ((double) mant, exponent - mant_bits); |
c906108c SS |
3339 | exponent -= mant_bits; |
3340 | mant_off += mant_bits; | |
3341 | mant_bits_left -= mant_bits; | |
3342 | } | |
3343 | ||
3344 | /* Negate it if negative. */ | |
3345 | if (get_field (ufrom, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1)) | |
3346 | dto = -dto; | |
3347 | *to = dto; | |
3348 | } | |
3349 | \f | |
3350 | static void put_field PARAMS ((unsigned char *, enum floatformat_byteorders, | |
3351 | unsigned int, | |
3352 | unsigned int, | |
3353 | unsigned int, | |
3354 | unsigned long)); | |
3355 | ||
3356 | /* Set a field which starts at START and is LEN bytes long. DATA and | |
3357 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
3358 | static void | |
3359 | put_field (data, order, total_len, start, len, stuff_to_put) | |
3360 | unsigned char *data; | |
3361 | enum floatformat_byteorders order; | |
3362 | unsigned int total_len; | |
3363 | unsigned int start; | |
3364 | unsigned int len; | |
3365 | unsigned long stuff_to_put; | |
3366 | { | |
3367 | unsigned int cur_byte; | |
3368 | int cur_bitshift; | |
3369 | ||
3370 | /* Start at the least significant part of the field. */ | |
3371 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
3372 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3373 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
3374 | cur_bitshift = | |
3375 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
3376 | *(data + cur_byte) &= | |
3377 | ~(((1 << ((start + len) % FLOATFORMAT_CHAR_BIT)) - 1) << (-cur_bitshift)); | |
3378 | *(data + cur_byte) |= | |
3379 | (stuff_to_put & ((1 << FLOATFORMAT_CHAR_BIT) - 1)) << (-cur_bitshift); | |
3380 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3381 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3382 | ++cur_byte; | |
3383 | else | |
3384 | --cur_byte; | |
3385 | ||
3386 | /* Move towards the most significant part of the field. */ | |
3387 | while (cur_bitshift < len) | |
3388 | { | |
3389 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
3390 | { | |
3391 | /* This is the last byte. */ | |
3392 | *(data + cur_byte) &= | |
3393 | ~((1 << (len - cur_bitshift)) - 1); | |
3394 | *(data + cur_byte) |= (stuff_to_put >> cur_bitshift); | |
3395 | } | |
3396 | else | |
3397 | *(data + cur_byte) = ((stuff_to_put >> cur_bitshift) | |
3398 | & ((1 << FLOATFORMAT_CHAR_BIT) - 1)); | |
3399 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
3400 | if (order == floatformat_little || order == floatformat_littlebyte_bigword) | |
3401 | ++cur_byte; | |
3402 | else | |
3403 | --cur_byte; | |
3404 | } | |
3405 | } | |
3406 | ||
3407 | #ifdef HAVE_LONG_DOUBLE | |
3408 | /* Return the fractional part of VALUE, and put the exponent of VALUE in *EPTR. | |
3409 | The range of the returned value is >= 0.5 and < 1.0. This is equivalent to | |
3410 | frexp, but operates on the long double data type. */ | |
3411 | ||
3412 | static long double ldfrexp PARAMS ((long double value, int *eptr)); | |
3413 | ||
3414 | static long double | |
3415 | ldfrexp (value, eptr) | |
3416 | long double value; | |
3417 | int *eptr; | |
3418 | { | |
3419 | long double tmp; | |
3420 | int exp; | |
3421 | ||
3422 | /* Unfortunately, there are no portable functions for extracting the exponent | |
3423 | of a long double, so we have to do it iteratively by multiplying or dividing | |
3424 | by two until the fraction is between 0.5 and 1.0. */ | |
3425 | ||
3426 | if (value < 0.0l) | |
3427 | value = -value; | |
3428 | ||
3429 | tmp = 1.0l; | |
3430 | exp = 0; | |
3431 | ||
3432 | if (value >= tmp) /* Value >= 1.0 */ | |
3433 | while (value >= tmp) | |
3434 | { | |
3435 | tmp *= 2.0l; | |
3436 | exp++; | |
3437 | } | |
3438 | else if (value != 0.0l) /* Value < 1.0 and > 0.0 */ | |
3439 | { | |
3440 | while (value < tmp) | |
3441 | { | |
3442 | tmp /= 2.0l; | |
3443 | exp--; | |
3444 | } | |
3445 | tmp *= 2.0l; | |
3446 | exp++; | |
3447 | } | |
3448 | ||
3449 | *eptr = exp; | |
c5aa993b | 3450 | return value / tmp; |
c906108c SS |
3451 | } |
3452 | #endif /* HAVE_LONG_DOUBLE */ | |
3453 | ||
3454 | ||
3455 | /* The converse: convert the DOUBLEST *FROM to an extended float | |
3456 | and store where TO points. Neither FROM nor TO have any alignment | |
3457 | restrictions. */ | |
3458 | ||
3459 | void | |
3460 | floatformat_from_doublest (fmt, from, to) | |
3461 | CONST struct floatformat *fmt; | |
3462 | DOUBLEST *from; | |
3463 | char *to; | |
3464 | { | |
3465 | DOUBLEST dfrom; | |
3466 | int exponent; | |
3467 | DOUBLEST mant; | |
3468 | unsigned int mant_bits, mant_off; | |
3469 | int mant_bits_left; | |
c5aa993b | 3470 | unsigned char *uto = (unsigned char *) to; |
c906108c SS |
3471 | |
3472 | memcpy (&dfrom, from, sizeof (dfrom)); | |
3473 | memset (uto, 0, fmt->totalsize / FLOATFORMAT_CHAR_BIT); | |
3474 | if (dfrom == 0) | |
3475 | return; /* Result is zero */ | |
3476 | if (dfrom != dfrom) /* Result is NaN */ | |
3477 | { | |
3478 | /* From is NaN */ | |
3479 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, | |
3480 | fmt->exp_len, fmt->exp_nan); | |
3481 | /* Be sure it's not infinity, but NaN value is irrel */ | |
3482 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->man_start, | |
3483 | 32, 1); | |
3484 | return; | |
3485 | } | |
3486 | ||
3487 | /* If negative, set the sign bit. */ | |
3488 | if (dfrom < 0) | |
3489 | { | |
3490 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1, 1); | |
3491 | dfrom = -dfrom; | |
3492 | } | |
3493 | ||
3494 | if (dfrom + dfrom == dfrom && dfrom != 0.0) /* Result is Infinity */ | |
3495 | { | |
3496 | /* Infinity exponent is same as NaN's. */ | |
3497 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, | |
3498 | fmt->exp_len, fmt->exp_nan); | |
3499 | /* Infinity mantissa is all zeroes. */ | |
3500 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->man_start, | |
3501 | fmt->man_len, 0); | |
3502 | return; | |
3503 | } | |
3504 | ||
3505 | #ifdef HAVE_LONG_DOUBLE | |
3506 | mant = ldfrexp (dfrom, &exponent); | |
3507 | #else | |
3508 | mant = frexp (dfrom, &exponent); | |
3509 | #endif | |
3510 | ||
3511 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, fmt->exp_len, | |
3512 | exponent + fmt->exp_bias - 1); | |
3513 | ||
3514 | mant_bits_left = fmt->man_len; | |
3515 | mant_off = fmt->man_start; | |
3516 | while (mant_bits_left > 0) | |
3517 | { | |
3518 | unsigned long mant_long; | |
3519 | mant_bits = mant_bits_left < 32 ? mant_bits_left : 32; | |
3520 | ||
3521 | mant *= 4294967296.0; | |
c5aa993b | 3522 | mant_long = (unsigned long) mant; |
c906108c SS |
3523 | mant -= mant_long; |
3524 | ||
3525 | /* If the integer bit is implicit, then we need to discard it. | |
c5aa993b JM |
3526 | If we are discarding a zero, we should be (but are not) creating |
3527 | a denormalized number which means adjusting the exponent | |
3528 | (I think). */ | |
c906108c SS |
3529 | if (mant_bits_left == fmt->man_len |
3530 | && fmt->intbit == floatformat_intbit_no) | |
3531 | { | |
3532 | mant_long <<= 1; | |
3533 | mant_bits -= 1; | |
3534 | } | |
3535 | ||
3536 | if (mant_bits < 32) | |
3537 | { | |
3538 | /* The bits we want are in the most significant MANT_BITS bits of | |
3539 | mant_long. Move them to the least significant. */ | |
3540 | mant_long >>= 32 - mant_bits; | |
3541 | } | |
3542 | ||
3543 | put_field (uto, fmt->byteorder, fmt->totalsize, | |
3544 | mant_off, mant_bits, mant_long); | |
3545 | mant_off += mant_bits; | |
3546 | mant_bits_left -= mant_bits; | |
3547 | } | |
c5aa993b | 3548 | if (fmt->byteorder == floatformat_littlebyte_bigword) |
c906108c SS |
3549 | { |
3550 | int count; | |
3551 | unsigned char *swaplow = uto; | |
3552 | unsigned char *swaphigh = uto + 4; | |
3553 | unsigned char tmp; | |
3554 | ||
3555 | for (count = 0; count < 4; count++) | |
3556 | { | |
3557 | tmp = *swaplow; | |
3558 | *swaplow++ = *swaphigh; | |
3559 | *swaphigh++ = tmp; | |
3560 | } | |
3561 | } | |
3562 | } | |
3563 | ||
3564 | /* temporary storage using circular buffer */ | |
3565 | #define NUMCELLS 16 | |
3566 | #define CELLSIZE 32 | |
c5aa993b JM |
3567 | static char * |
3568 | get_cell () | |
c906108c SS |
3569 | { |
3570 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
3571 | static int cell = 0; |
3572 | if (++cell >= NUMCELLS) | |
3573 | cell = 0; | |
c906108c SS |
3574 | return buf[cell]; |
3575 | } | |
3576 | ||
3577 | /* print routines to handle variable size regs, etc. | |
3578 | ||
3579 | FIXME: Note that t_addr is a bfd_vma, which is currently either an | |
3580 | unsigned long or unsigned long long, determined at configure time. | |
3581 | If t_addr is an unsigned long long and sizeof (unsigned long long) | |
3582 | is greater than sizeof (unsigned long), then I believe this code will | |
3583 | probably lose, at least for little endian machines. I believe that | |
3584 | it would also be better to eliminate the switch on the absolute size | |
3585 | of t_addr and replace it with a sequence of if statements that compare | |
3586 | sizeof t_addr with sizeof the various types and do the right thing, | |
3587 | which includes knowing whether or not the host supports long long. | |
3588 | -fnf | |
3589 | ||
3590 | */ | |
3591 | ||
d4f3574e SS |
3592 | int |
3593 | strlen_paddr (void) | |
3594 | { | |
3595 | return (TARGET_PTR_BIT / 8 * 2); | |
3596 | } | |
3597 | ||
3598 | ||
104c1213 JM |
3599 | /* eliminate warning from compiler on 32-bit systems */ |
3600 | static int thirty_two = 32; | |
c906108c | 3601 | |
c5aa993b | 3602 | char * |
104c1213 | 3603 | paddr (CORE_ADDR addr) |
c906108c | 3604 | { |
c5aa993b | 3605 | char *paddr_str = get_cell (); |
104c1213 | 3606 | switch (TARGET_PTR_BIT / 8) |
c906108c | 3607 | { |
c5aa993b JM |
3608 | case 8: |
3609 | sprintf (paddr_str, "%08lx%08lx", | |
3610 | (unsigned long) (addr >> thirty_two), (unsigned long) (addr & 0xffffffff)); | |
3611 | break; | |
3612 | case 4: | |
3613 | sprintf (paddr_str, "%08lx", (unsigned long) addr); | |
3614 | break; | |
3615 | case 2: | |
3616 | sprintf (paddr_str, "%04x", (unsigned short) (addr & 0xffff)); | |
3617 | break; | |
3618 | default: | |
3619 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
c906108c SS |
3620 | } |
3621 | return paddr_str; | |
3622 | } | |
3623 | ||
c5aa993b | 3624 | char * |
104c1213 | 3625 | paddr_nz (CORE_ADDR addr) |
c906108c | 3626 | { |
c5aa993b | 3627 | char *paddr_str = get_cell (); |
104c1213 | 3628 | switch (TARGET_PTR_BIT / 8) |
c906108c | 3629 | { |
c5aa993b JM |
3630 | case 8: |
3631 | { | |
3632 | unsigned long high = (unsigned long) (addr >> thirty_two); | |
3633 | if (high == 0) | |
3634 | sprintf (paddr_str, "%lx", (unsigned long) (addr & 0xffffffff)); | |
3635 | else | |
3636 | sprintf (paddr_str, "%lx%08lx", | |
3637 | high, (unsigned long) (addr & 0xffffffff)); | |
c906108c | 3638 | break; |
c5aa993b JM |
3639 | } |
3640 | case 4: | |
3641 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
3642 | break; | |
3643 | case 2: | |
3644 | sprintf (paddr_str, "%x", (unsigned short) (addr & 0xffff)); | |
3645 | break; | |
3646 | default: | |
3647 | sprintf (paddr_str, "%lx", (unsigned long) addr); | |
c906108c SS |
3648 | } |
3649 | return paddr_str; | |
3650 | } | |
3651 | ||
104c1213 JM |
3652 | static void |
3653 | decimal2str (char *paddr_str, char *sign, ULONGEST addr) | |
3654 | { | |
3655 | /* steal code from valprint.c:print_decimal(). Should this worry | |
3656 | about the real size of addr as the above does? */ | |
3657 | unsigned long temp[3]; | |
3658 | int i = 0; | |
3659 | do | |
3660 | { | |
3661 | temp[i] = addr % (1000 * 1000 * 1000); | |
3662 | addr /= (1000 * 1000 * 1000); | |
3663 | i++; | |
3664 | } | |
3665 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
3666 | switch (i) | |
3667 | { | |
3668 | case 1: | |
3669 | sprintf (paddr_str, "%s%lu", | |
3670 | sign, temp[0]); | |
3671 | break; | |
3672 | case 2: | |
3673 | sprintf (paddr_str, "%s%lu%09lu", | |
3674 | sign, temp[1], temp[0]); | |
3675 | break; | |
3676 | case 3: | |
3677 | sprintf (paddr_str, "%s%lu%09lu%09lu", | |
3678 | sign, temp[2], temp[1], temp[0]); | |
3679 | break; | |
3680 | default: | |
3681 | abort (); | |
3682 | } | |
3683 | } | |
3684 | ||
3685 | char * | |
3686 | paddr_u (CORE_ADDR addr) | |
3687 | { | |
3688 | char *paddr_str = get_cell (); | |
3689 | decimal2str (paddr_str, "", addr); | |
3690 | return paddr_str; | |
3691 | } | |
3692 | ||
3693 | char * | |
3694 | paddr_d (LONGEST addr) | |
3695 | { | |
3696 | char *paddr_str = get_cell (); | |
3697 | if (addr < 0) | |
3698 | decimal2str (paddr_str, "-", -addr); | |
3699 | else | |
3700 | decimal2str (paddr_str, "", addr); | |
3701 | return paddr_str; | |
3702 | } | |
3703 | ||
3704 | char * | |
3705 | preg (reg) | |
3706 | t_reg reg; | |
3707 | { | |
3708 | char *preg_str = get_cell (); | |
3709 | switch (sizeof (t_reg)) | |
3710 | { | |
3711 | case 8: | |
3712 | sprintf (preg_str, "%08lx%08lx", | |
3713 | (unsigned long) (reg >> thirty_two), (unsigned long) (reg & 0xffffffff)); | |
3714 | break; | |
3715 | case 4: | |
3716 | sprintf (preg_str, "%08lx", (unsigned long) reg); | |
3717 | break; | |
3718 | case 2: | |
3719 | sprintf (preg_str, "%04x", (unsigned short) (reg & 0xffff)); | |
3720 | break; | |
3721 | default: | |
3722 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
3723 | } | |
3724 | return preg_str; | |
3725 | } | |
3726 | ||
c5aa993b JM |
3727 | char * |
3728 | preg_nz (reg) | |
3729 | t_reg reg; | |
c906108c | 3730 | { |
c5aa993b JM |
3731 | char *preg_str = get_cell (); |
3732 | switch (sizeof (t_reg)) | |
c906108c | 3733 | { |
c5aa993b JM |
3734 | case 8: |
3735 | { | |
3736 | unsigned long high = (unsigned long) (reg >> thirty_two); | |
3737 | if (high == 0) | |
3738 | sprintf (preg_str, "%lx", (unsigned long) (reg & 0xffffffff)); | |
3739 | else | |
3740 | sprintf (preg_str, "%lx%08lx", | |
3741 | high, (unsigned long) (reg & 0xffffffff)); | |
c906108c | 3742 | break; |
c5aa993b JM |
3743 | } |
3744 | case 4: | |
3745 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
3746 | break; | |
3747 | case 2: | |
3748 | sprintf (preg_str, "%x", (unsigned short) (reg & 0xffff)); | |
3749 | break; | |
3750 | default: | |
3751 | sprintf (preg_str, "%lx", (unsigned long) reg); | |
c906108c SS |
3752 | } |
3753 | return preg_str; | |
3754 | } | |
392a587b JM |
3755 | |
3756 | /* Helper functions for INNER_THAN */ | |
3757 | int | |
3758 | core_addr_lessthan (lhs, rhs) | |
3759 | CORE_ADDR lhs; | |
3760 | CORE_ADDR rhs; | |
3761 | { | |
3762 | return (lhs < rhs); | |
3763 | } | |
3764 | ||
3765 | int | |
3766 | core_addr_greaterthan (lhs, rhs) | |
3767 | CORE_ADDR lhs; | |
3768 | CORE_ADDR rhs; | |
3769 | { | |
3770 | return (lhs > rhs); | |
3771 | } |