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