Commit | Line | Data |
---|---|---|
bd5635a1 | 1 | /* General utility routines for GDB, the GNU debugger. |
03e2a8c8 | 2 | Copyright 1986, 89, 90, 91, 92, 95, 1996 Free Software Foundation, Inc. |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
351b221d | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
351b221d JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
351b221d | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
351b221d | 17 | along with this program; if not, write to the Free Software |
dedcc91d | 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
bd5635a1 | 19 | |
d747e0af | 20 | #include "defs.h" |
45993f61 | 21 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
22 | #include <stdarg.h> |
23 | #else | |
2bc2e684 | 24 | #include <varargs.h> |
85c613aa | 25 | #endif |
2bc2e684 | 26 | #include <ctype.h> |
2b576293 | 27 | #include "gdb_string.h" |
1a494973 C |
28 | #ifdef HAVE_UNISTD_H |
29 | #include <unistd.h> | |
30 | #endif | |
2bc2e684 | 31 | |
bd5635a1 RP |
32 | #include "signals.h" |
33 | #include "gdbcmd.h" | |
159dd2aa | 34 | #include "serial.h" |
bd5635a1 RP |
35 | #include "bfd.h" |
36 | #include "target.h" | |
bcf2e6ab | 37 | #include "demangle.h" |
bd5d07d9 FF |
38 | #include "expression.h" |
39 | #include "language.h" | |
1c95d7ab | 40 | #include "annotate.h" |
bd5635a1 | 41 | |
d8742f46 JK |
42 | #include "readline.h" |
43 | ||
44 | /* readline defines this. */ | |
45 | #undef savestring | |
46 | ||
7919c3ed JG |
47 | /* Prototypes for local functions */ |
48 | ||
b607efe7 FF |
49 | static void vfprintf_maybe_filtered PARAMS ((FILE *, const char *, va_list, int)); |
50 | ||
51 | static void fputs_maybe_filtered PARAMS ((const char *, FILE *, int)); | |
52 | ||
53 | #if !defined (NO_MMALLOC) && !defined (NO_MMCHECK) | |
54 | static void malloc_botch PARAMS ((void)); | |
55 | #endif | |
56 | ||
7919c3ed | 57 | static void |
85c613aa | 58 | fatal_dump_core PARAMS((char *, ...)); |
7919c3ed JG |
59 | |
60 | static void | |
61 | prompt_for_continue PARAMS ((void)); | |
62 | ||
63 | static void | |
64 | set_width_command PARAMS ((char *, int, struct cmd_list_element *)); | |
65 | ||
bd5635a1 RP |
66 | /* If this definition isn't overridden by the header files, assume |
67 | that isatty and fileno exist on this system. */ | |
68 | #ifndef ISATTY | |
69 | #define ISATTY(FP) (isatty (fileno (FP))) | |
70 | #endif | |
71 | ||
bd5635a1 RP |
72 | /* Chain of cleanup actions established with make_cleanup, |
73 | to be executed if an error happens. */ | |
74 | ||
75 | static struct cleanup *cleanup_chain; | |
76 | ||
16d2cc80 SS |
77 | /* Nonzero if we have job control. */ |
78 | ||
79 | int job_control; | |
80 | ||
bd5635a1 RP |
81 | /* Nonzero means a quit has been requested. */ |
82 | ||
83 | int quit_flag; | |
84 | ||
159dd2aa JK |
85 | /* Nonzero means quit immediately if Control-C is typed now, rather |
86 | than waiting until QUIT is executed. Be careful in setting this; | |
87 | code which executes with immediate_quit set has to be very careful | |
88 | about being able to deal with being interrupted at any time. It is | |
89 | almost always better to use QUIT; the only exception I can think of | |
90 | is being able to quit out of a system call (using EINTR loses if | |
91 | the SIGINT happens between the previous QUIT and the system call). | |
92 | To immediately quit in the case in which a SIGINT happens between | |
93 | the previous QUIT and setting immediate_quit (desirable anytime we | |
94 | expect to block), call QUIT after setting immediate_quit. */ | |
bd5635a1 RP |
95 | |
96 | int immediate_quit; | |
97 | ||
98 | /* Nonzero means that encoded C++ names should be printed out in their | |
99 | C++ form rather than raw. */ | |
100 | ||
101 | int demangle = 1; | |
102 | ||
103 | /* Nonzero means that encoded C++ names should be printed out in their | |
104 | C++ form even in assembler language displays. If this is set, but | |
105 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ | |
106 | ||
107 | int asm_demangle = 0; | |
108 | ||
109 | /* Nonzero means that strings with character values >0x7F should be printed | |
110 | as octal escapes. Zero means just print the value (e.g. it's an | |
111 | international character, and the terminal or window can cope.) */ | |
112 | ||
113 | int sevenbit_strings = 0; | |
81066208 JG |
114 | |
115 | /* String to be printed before error messages, if any. */ | |
116 | ||
117 | char *error_pre_print; | |
49073be0 SS |
118 | |
119 | /* String to be printed before quit messages, if any. */ | |
120 | ||
121 | char *quit_pre_print; | |
122 | ||
123 | /* String to be printed before warning messages, if any. */ | |
124 | ||
3624c875 | 125 | char *warning_pre_print = "\nwarning: "; |
bd5635a1 RP |
126 | \f |
127 | /* Add a new cleanup to the cleanup_chain, | |
128 | and return the previous chain pointer | |
129 | to be passed later to do_cleanups or discard_cleanups. | |
130 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
131 | ||
132 | struct cleanup * | |
133 | make_cleanup (function, arg) | |
7919c3ed JG |
134 | void (*function) PARAMS ((PTR)); |
135 | PTR arg; | |
bd5635a1 RP |
136 | { |
137 | register struct cleanup *new | |
138 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); | |
139 | register struct cleanup *old_chain = cleanup_chain; | |
140 | ||
141 | new->next = cleanup_chain; | |
142 | new->function = function; | |
143 | new->arg = arg; | |
144 | cleanup_chain = new; | |
145 | ||
146 | return old_chain; | |
147 | } | |
148 | ||
149 | /* Discard cleanups and do the actions they describe | |
150 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
151 | ||
152 | void | |
153 | do_cleanups (old_chain) | |
154 | register struct cleanup *old_chain; | |
155 | { | |
156 | register struct cleanup *ptr; | |
157 | while ((ptr = cleanup_chain) != old_chain) | |
158 | { | |
5e5215eb | 159 | cleanup_chain = ptr->next; /* Do this first incase recursion */ |
bd5635a1 | 160 | (*ptr->function) (ptr->arg); |
bd5635a1 RP |
161 | free (ptr); |
162 | } | |
163 | } | |
164 | ||
165 | /* Discard cleanups, not doing the actions they describe, | |
166 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
167 | ||
168 | void | |
169 | discard_cleanups (old_chain) | |
170 | register struct cleanup *old_chain; | |
171 | { | |
172 | register struct cleanup *ptr; | |
173 | while ((ptr = cleanup_chain) != old_chain) | |
174 | { | |
175 | cleanup_chain = ptr->next; | |
be772100 | 176 | free ((PTR)ptr); |
bd5635a1 RP |
177 | } |
178 | } | |
179 | ||
180 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
181 | struct cleanup * | |
182 | save_cleanups () | |
183 | { | |
184 | struct cleanup *old_chain = cleanup_chain; | |
185 | ||
186 | cleanup_chain = 0; | |
187 | return old_chain; | |
188 | } | |
189 | ||
190 | /* Restore the cleanup chain from a previously saved chain. */ | |
191 | void | |
192 | restore_cleanups (chain) | |
193 | struct cleanup *chain; | |
194 | { | |
195 | cleanup_chain = chain; | |
196 | } | |
197 | ||
198 | /* This function is useful for cleanups. | |
199 | Do | |
200 | ||
201 | foo = xmalloc (...); | |
202 | old_chain = make_cleanup (free_current_contents, &foo); | |
203 | ||
204 | to arrange to free the object thus allocated. */ | |
205 | ||
206 | void | |
207 | free_current_contents (location) | |
208 | char **location; | |
209 | { | |
210 | free (*location); | |
211 | } | |
088c3a0b JG |
212 | |
213 | /* Provide a known function that does nothing, to use as a base for | |
214 | for a possibly long chain of cleanups. This is useful where we | |
215 | use the cleanup chain for handling normal cleanups as well as dealing | |
216 | with cleanups that need to be done as a result of a call to error(). | |
217 | In such cases, we may not be certain where the first cleanup is, unless | |
218 | we have a do-nothing one to always use as the base. */ | |
219 | ||
220 | /* ARGSUSED */ | |
221 | void | |
222 | null_cleanup (arg) | |
b607efe7 | 223 | PTR arg; |
088c3a0b JG |
224 | { |
225 | } | |
226 | ||
bd5635a1 | 227 | \f |
8989d4fc JK |
228 | /* Print a warning message. Way to use this is to call warning_begin, |
229 | output the warning message (use unfiltered output to gdb_stderr), | |
230 | ending in a newline. There is not currently a warning_end that you | |
231 | call afterwards, but such a thing might be added if it is useful | |
232 | for a GUI to separate warning messages from other output. | |
233 | ||
234 | FIXME: Why do warnings use unfiltered output and errors filtered? | |
235 | Is this anything other than a historical accident? */ | |
2bc2e684 FF |
236 | |
237 | void | |
8989d4fc | 238 | warning_begin () |
2bc2e684 FF |
239 | { |
240 | target_terminal_ours (); | |
241 | wrap_here(""); /* Force out any buffered output */ | |
199b2450 | 242 | gdb_flush (gdb_stdout); |
8989d4fc JK |
243 | if (warning_pre_print) |
244 | fprintf_unfiltered (gdb_stderr, warning_pre_print); | |
2bc2e684 FF |
245 | } |
246 | ||
247 | /* Print a warning message. | |
248 | The first argument STRING is the warning message, used as a fprintf string, | |
249 | and the remaining args are passed as arguments to it. | |
250 | The primary difference between warnings and errors is that a warning | |
8989d4fc | 251 | does not force the return to command level. */ |
2bc2e684 FF |
252 | |
253 | /* VARARGS */ | |
254 | void | |
45993f61 | 255 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
256 | warning (char *string, ...) |
257 | #else | |
2bc2e684 FF |
258 | warning (va_alist) |
259 | va_dcl | |
85c613aa | 260 | #endif |
2bc2e684 FF |
261 | { |
262 | va_list args; | |
45993f61 | 263 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
264 | va_start (args, string); |
265 | #else | |
2bc2e684 FF |
266 | char *string; |
267 | ||
268 | va_start (args); | |
2bc2e684 | 269 | string = va_arg (args, char *); |
85c613aa C |
270 | #endif |
271 | warning_begin (); | |
199b2450 TL |
272 | vfprintf_unfiltered (gdb_stderr, string, args); |
273 | fprintf_unfiltered (gdb_stderr, "\n"); | |
2bc2e684 FF |
274 | va_end (args); |
275 | } | |
276 | ||
a0cf4681 | 277 | /* Start the printing of an error message. Way to use this is to call |
8989d4fc JK |
278 | this, output the error message (use filtered output to gdb_stderr |
279 | (FIXME: Some callers, like memory_error, use gdb_stdout)), ending | |
280 | in a newline, and then call return_to_top_level (RETURN_ERROR). | |
281 | error() provides a convenient way to do this for the special case | |
282 | that the error message can be formatted with a single printf call, | |
283 | but this is more general. */ | |
a0cf4681 JK |
284 | void |
285 | error_begin () | |
286 | { | |
287 | target_terminal_ours (); | |
288 | wrap_here (""); /* Force out any buffered output */ | |
289 | gdb_flush (gdb_stdout); | |
290 | ||
1c95d7ab | 291 | annotate_error_begin (); |
a0cf4681 JK |
292 | |
293 | if (error_pre_print) | |
294 | fprintf_filtered (gdb_stderr, error_pre_print); | |
295 | } | |
296 | ||
bd5635a1 RP |
297 | /* Print an error message and return to command level. |
298 | The first argument STRING is the error message, used as a fprintf string, | |
299 | and the remaining args are passed as arguments to it. */ | |
300 | ||
45993f61 | 301 | #ifdef ANSI_PROTOTYPES |
7919c3ed | 302 | NORETURN void |
85c613aa C |
303 | error (char *string, ...) |
304 | #else | |
1a494973 | 305 | void |
bd5635a1 RP |
306 | error (va_alist) |
307 | va_dcl | |
85c613aa | 308 | #endif |
bd5635a1 RP |
309 | { |
310 | va_list args; | |
1a494973 | 311 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
312 | va_start (args, string); |
313 | #else | |
bd5635a1 | 314 | va_start (args); |
85c613aa | 315 | #endif |
45993f61 | 316 | if (error_hook) |
1a494973 | 317 | (*error_hook) (); |
45993f61 SC |
318 | else |
319 | { | |
45993f61 SC |
320 | error_begin (); |
321 | #ifdef ANSI_PROTOTYPES | |
322 | vfprintf_filtered (gdb_stderr, string, args); | |
323 | #else | |
1a494973 C |
324 | { |
325 | char *string1; | |
326 | ||
327 | string1 = va_arg (args, char *); | |
328 | vfprintf_filtered (gdb_stderr, string1, args); | |
329 | } | |
45993f61 SC |
330 | #endif |
331 | fprintf_filtered (gdb_stderr, "\n"); | |
332 | va_end (args); | |
333 | return_to_top_level (RETURN_ERROR); | |
334 | } | |
bd5635a1 RP |
335 | } |
336 | ||
45993f61 | 337 | |
bd5635a1 RP |
338 | /* Print an error message and exit reporting failure. |
339 | This is for a error that we cannot continue from. | |
7919c3ed JG |
340 | The arguments are printed a la printf. |
341 | ||
342 | This function cannot be declared volatile (NORETURN) in an | |
343 | ANSI environment because exit() is not declared volatile. */ | |
bd5635a1 RP |
344 | |
345 | /* VARARGS */ | |
7919c3ed | 346 | NORETURN void |
45993f61 | 347 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
348 | fatal (char *string, ...) |
349 | #else | |
bd5635a1 RP |
350 | fatal (va_alist) |
351 | va_dcl | |
85c613aa | 352 | #endif |
bd5635a1 RP |
353 | { |
354 | va_list args; | |
45993f61 | 355 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
356 | va_start (args, string); |
357 | #else | |
bd5635a1 | 358 | char *string; |
bd5635a1 RP |
359 | va_start (args); |
360 | string = va_arg (args, char *); | |
85c613aa | 361 | #endif |
199b2450 TL |
362 | fprintf_unfiltered (gdb_stderr, "\ngdb: "); |
363 | vfprintf_unfiltered (gdb_stderr, string, args); | |
364 | fprintf_unfiltered (gdb_stderr, "\n"); | |
bd5635a1 RP |
365 | va_end (args); |
366 | exit (1); | |
367 | } | |
368 | ||
369 | /* Print an error message and exit, dumping core. | |
370 | The arguments are printed a la printf (). */ | |
7919c3ed | 371 | |
bd5635a1 | 372 | /* VARARGS */ |
7919c3ed | 373 | static void |
45993f61 | 374 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
375 | fatal_dump_core (char *string, ...) |
376 | #else | |
bd5635a1 RP |
377 | fatal_dump_core (va_alist) |
378 | va_dcl | |
85c613aa | 379 | #endif |
bd5635a1 RP |
380 | { |
381 | va_list args; | |
45993f61 | 382 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
383 | va_start (args, string); |
384 | #else | |
bd5635a1 RP |
385 | char *string; |
386 | ||
387 | va_start (args); | |
388 | string = va_arg (args, char *); | |
85c613aa | 389 | #endif |
bd5635a1 RP |
390 | /* "internal error" is always correct, since GDB should never dump |
391 | core, no matter what the input. */ | |
199b2450 TL |
392 | fprintf_unfiltered (gdb_stderr, "\ngdb internal error: "); |
393 | vfprintf_unfiltered (gdb_stderr, string, args); | |
394 | fprintf_unfiltered (gdb_stderr, "\n"); | |
bd5635a1 RP |
395 | va_end (args); |
396 | ||
03e2a8c8 | 397 | #ifndef _WIN32 |
bd5635a1 RP |
398 | signal (SIGQUIT, SIG_DFL); |
399 | kill (getpid (), SIGQUIT); | |
03e2a8c8 | 400 | #endif |
bd5635a1 RP |
401 | /* We should never get here, but just in case... */ |
402 | exit (1); | |
403 | } | |
7919c3ed | 404 | |
4ace50a5 FF |
405 | /* The strerror() function can return NULL for errno values that are |
406 | out of range. Provide a "safe" version that always returns a | |
407 | printable string. */ | |
408 | ||
409 | char * | |
410 | safe_strerror (errnum) | |
411 | int errnum; | |
412 | { | |
413 | char *msg; | |
414 | static char buf[32]; | |
415 | ||
416 | if ((msg = strerror (errnum)) == NULL) | |
417 | { | |
418 | sprintf (buf, "(undocumented errno %d)", errnum); | |
419 | msg = buf; | |
420 | } | |
421 | return (msg); | |
422 | } | |
423 | ||
424 | /* The strsignal() function can return NULL for signal values that are | |
425 | out of range. Provide a "safe" version that always returns a | |
426 | printable string. */ | |
427 | ||
428 | char * | |
429 | safe_strsignal (signo) | |
430 | int signo; | |
431 | { | |
432 | char *msg; | |
433 | static char buf[32]; | |
434 | ||
435 | if ((msg = strsignal (signo)) == NULL) | |
436 | { | |
437 | sprintf (buf, "(undocumented signal %d)", signo); | |
438 | msg = buf; | |
439 | } | |
440 | return (msg); | |
441 | } | |
442 | ||
443 | ||
bd5635a1 RP |
444 | /* Print the system error message for errno, and also mention STRING |
445 | as the file name for which the error was encountered. | |
446 | Then return to command level. */ | |
447 | ||
448 | void | |
449 | perror_with_name (string) | |
450 | char *string; | |
451 | { | |
bd5635a1 RP |
452 | char *err; |
453 | char *combined; | |
454 | ||
4ace50a5 | 455 | err = safe_strerror (errno); |
bd5635a1 RP |
456 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); |
457 | strcpy (combined, string); | |
458 | strcat (combined, ": "); | |
459 | strcat (combined, err); | |
460 | ||
461 | /* I understand setting these is a matter of taste. Still, some people | |
462 | may clear errno but not know about bfd_error. Doing this here is not | |
463 | unreasonable. */ | |
8eec3310 | 464 | bfd_set_error (bfd_error_no_error); |
bd5635a1 RP |
465 | errno = 0; |
466 | ||
467 | error ("%s.", combined); | |
468 | } | |
469 | ||
470 | /* Print the system error message for ERRCODE, and also mention STRING | |
471 | as the file name for which the error was encountered. */ | |
472 | ||
473 | void | |
474 | print_sys_errmsg (string, errcode) | |
475 | char *string; | |
476 | int errcode; | |
477 | { | |
bd5635a1 RP |
478 | char *err; |
479 | char *combined; | |
480 | ||
4ace50a5 | 481 | err = safe_strerror (errcode); |
bd5635a1 RP |
482 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); |
483 | strcpy (combined, string); | |
484 | strcat (combined, ": "); | |
485 | strcat (combined, err); | |
486 | ||
44a09a68 JK |
487 | /* We want anything which was printed on stdout to come out first, before |
488 | this message. */ | |
489 | gdb_flush (gdb_stdout); | |
199b2450 | 490 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); |
bd5635a1 RP |
491 | } |
492 | ||
493 | /* Control C eventually causes this to be called, at a convenient time. */ | |
494 | ||
495 | void | |
496 | quit () | |
497 | { | |
199b2450 | 498 | serial_t gdb_stdout_serial = serial_fdopen (1); |
159dd2aa | 499 | |
bd5635a1 | 500 | target_terminal_ours (); |
159dd2aa | 501 | |
44a09a68 JK |
502 | /* We want all output to appear now, before we print "Quit". We |
503 | have 3 levels of buffering we have to flush (it's possible that | |
504 | some of these should be changed to flush the lower-level ones | |
505 | too): */ | |
506 | ||
507 | /* 1. The _filtered buffer. */ | |
508 | wrap_here ((char *)0); | |
509 | ||
510 | /* 2. The stdio buffer. */ | |
511 | gdb_flush (gdb_stdout); | |
512 | gdb_flush (gdb_stderr); | |
159dd2aa | 513 | |
44a09a68 JK |
514 | /* 3. The system-level buffer. */ |
515 | SERIAL_FLUSH_OUTPUT (gdb_stdout_serial); | |
199b2450 | 516 | SERIAL_UN_FDOPEN (gdb_stdout_serial); |
159dd2aa | 517 | |
1c95d7ab | 518 | annotate_error_begin (); |
a0cf4681 | 519 | |
159dd2aa | 520 | /* Don't use *_filtered; we don't want to prompt the user to continue. */ |
49073be0 SS |
521 | if (quit_pre_print) |
522 | fprintf_unfiltered (gdb_stderr, quit_pre_print); | |
159dd2aa JK |
523 | |
524 | if (job_control | |
525 | /* If there is no terminal switching for this target, then we can't | |
526 | possibly get screwed by the lack of job control. */ | |
cad1498f | 527 | || current_target.to_terminal_ours == NULL) |
199b2450 | 528 | fprintf_unfiltered (gdb_stderr, "Quit\n"); |
159dd2aa | 529 | else |
199b2450 | 530 | fprintf_unfiltered (gdb_stderr, |
159dd2aa JK |
531 | "Quit (expect signal SIGINT when the program is resumed)\n"); |
532 | return_to_top_level (RETURN_QUIT); | |
bd5635a1 RP |
533 | } |
534 | ||
bd5d07d9 | 535 | |
03e2a8c8 | 536 | #if defined(__GO32__) || defined(_WIN32) |
bd5d07d9 FF |
537 | |
538 | /* In the absence of signals, poll keyboard for a quit. | |
539 | Called from #define QUIT pollquit() in xm-go32.h. */ | |
540 | ||
541 | void | |
542 | pollquit() | |
543 | { | |
544 | if (kbhit ()) | |
545 | { | |
03e2a8c8 | 546 | #ifndef _WIN32 |
bd5d07d9 | 547 | int k = getkey (); |
44a09a68 | 548 | if (k == 1) { |
bd5d07d9 | 549 | quit_flag = 1; |
44a09a68 JK |
550 | quit(); |
551 | } | |
552 | else if (k == 2) { | |
bd5d07d9 | 553 | immediate_quit = 1; |
44a09a68 JK |
554 | quit (); |
555 | } | |
556 | else | |
557 | { | |
558 | /* We just ignore it */ | |
559 | fprintf_unfiltered (gdb_stderr, "CTRL-A to quit, CTRL-B to quit harder\n"); | |
560 | } | |
03e2a8c8 ILT |
561 | #else |
562 | abort (); | |
563 | #endif | |
bd5d07d9 FF |
564 | } |
565 | } | |
566 | ||
bd5d07d9 | 567 | |
44a09a68 | 568 | #endif |
03e2a8c8 | 569 | #if defined(__GO32__) || defined(_WIN32) |
44a09a68 JK |
570 | void notice_quit() |
571 | { | |
572 | if (kbhit ()) | |
573 | { | |
03e2a8c8 | 574 | #ifndef _WIN32 |
44a09a68 JK |
575 | int k = getkey (); |
576 | if (k == 1) { | |
577 | quit_flag = 1; | |
578 | } | |
579 | else if (k == 2) | |
580 | { | |
581 | immediate_quit = 1; | |
582 | } | |
583 | else | |
584 | { | |
585 | fprintf_unfiltered (gdb_stderr, "CTRL-A to quit, CTRL-B to quit harder\n"); | |
586 | } | |
03e2a8c8 ILT |
587 | #else |
588 | abort (); | |
589 | #endif | |
44a09a68 JK |
590 | } |
591 | } | |
592 | #else | |
593 | void notice_quit() | |
594 | { | |
595 | /* Done by signals */ | |
596 | } | |
597 | #endif | |
bd5635a1 RP |
598 | /* Control C comes here */ |
599 | ||
600 | void | |
088c3a0b JG |
601 | request_quit (signo) |
602 | int signo; | |
bd5635a1 RP |
603 | { |
604 | quit_flag = 1; | |
44a09a68 JK |
605 | /* Restore the signal handler. Harmless with BSD-style signals, needed |
606 | for System V-style signals. So just always do it, rather than worrying | |
607 | about USG defines and stuff like that. */ | |
088c3a0b | 608 | signal (signo, request_quit); |
bd5635a1 | 609 | |
cd10c7e3 | 610 | /* start-sanitize-gm */ |
a243a22f | 611 | #ifdef GENERAL_MAGIC |
cd10c7e3 | 612 | target_kill (); |
a243a22f | 613 | #endif /* GENERAL_MAGIC */ |
cd10c7e3 SG |
614 | /* end-sanitize-gm */ |
615 | ||
cad1498f SG |
616 | #ifdef REQUEST_QUIT |
617 | REQUEST_QUIT; | |
618 | #else | |
dedcc91d | 619 | if (immediate_quit) |
bd5635a1 | 620 | quit (); |
cad1498f | 621 | #endif |
bd5635a1 | 622 | } |
3624c875 FF |
623 | |
624 | \f | |
625 | /* Memory management stuff (malloc friends). */ | |
626 | ||
0d172a2e JK |
627 | /* Make a substitute size_t for non-ANSI compilers. */ |
628 | ||
03e2a8c8 | 629 | #ifndef HAVE_STDDEF_H |
0d172a2e JK |
630 | #ifndef size_t |
631 | #define size_t unsigned int | |
632 | #endif | |
633 | #endif | |
03e2a8c8 ILT |
634 | |
635 | #if defined (NO_MMALLOC) | |
0d172a2e | 636 | |
3624c875 FF |
637 | PTR |
638 | mmalloc (md, size) | |
639 | PTR md; | |
0d172a2e | 640 | size_t size; |
3624c875 | 641 | { |
0d172a2e | 642 | return malloc (size); |
3624c875 FF |
643 | } |
644 | ||
645 | PTR | |
646 | mrealloc (md, ptr, size) | |
647 | PTR md; | |
648 | PTR ptr; | |
0d172a2e | 649 | size_t size; |
3624c875 | 650 | { |
4ace50a5 FF |
651 | if (ptr == 0) /* Guard against old realloc's */ |
652 | return malloc (size); | |
653 | else | |
654 | return realloc (ptr, size); | |
3624c875 FF |
655 | } |
656 | ||
657 | void | |
658 | mfree (md, ptr) | |
659 | PTR md; | |
660 | PTR ptr; | |
661 | { | |
662 | free (ptr); | |
663 | } | |
664 | ||
665 | #endif /* NO_MMALLOC */ | |
666 | ||
54109914 | 667 | #if defined (NO_MMALLOC) || defined (NO_MMCHECK) |
3624c875 FF |
668 | |
669 | void | |
670 | init_malloc (md) | |
671 | PTR md; | |
672 | { | |
673 | } | |
674 | ||
54109914 | 675 | #else /* Have mmalloc and want corruption checking */ |
3624c875 FF |
676 | |
677 | static void | |
678 | malloc_botch () | |
679 | { | |
680 | fatal_dump_core ("Memory corruption"); | |
681 | } | |
682 | ||
683 | /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified | |
684 | by MD, to detect memory corruption. Note that MD may be NULL to specify | |
685 | the default heap that grows via sbrk. | |
686 | ||
54109914 | 687 | Note that for freshly created regions, we must call mmcheckf prior to any |
3624c875 FF |
688 | mallocs in the region. Otherwise, any region which was allocated prior to |
689 | installing the checking hooks, which is later reallocated or freed, will | |
690 | fail the checks! The mmcheck function only allows initial hooks to be | |
691 | installed before the first mmalloc. However, anytime after we have called | |
692 | mmcheck the first time to install the checking hooks, we can call it again | |
693 | to update the function pointer to the memory corruption handler. | |
694 | ||
695 | Returns zero on failure, non-zero on success. */ | |
696 | ||
54109914 FF |
697 | #ifndef MMCHECK_FORCE |
698 | #define MMCHECK_FORCE 0 | |
699 | #endif | |
700 | ||
3624c875 FF |
701 | void |
702 | init_malloc (md) | |
703 | PTR md; | |
704 | { | |
54109914 | 705 | if (!mmcheckf (md, malloc_botch, MMCHECK_FORCE)) |
3624c875 | 706 | { |
54109914 FF |
707 | /* Don't use warning(), which relies on current_target being set |
708 | to something other than dummy_target, until after | |
709 | initialize_all_files(). */ | |
710 | ||
711 | fprintf_unfiltered | |
712 | (gdb_stderr, "warning: failed to install memory consistency checks; "); | |
713 | fprintf_unfiltered | |
714 | (gdb_stderr, "configuration should define NO_MMCHECK or MMCHECK_FORCE\n"); | |
3624c875 FF |
715 | } |
716 | ||
4ed3a9ea | 717 | mmtrace (); |
3624c875 FF |
718 | } |
719 | ||
720 | #endif /* Have mmalloc and want corruption checking */ | |
721 | ||
722 | /* Called when a memory allocation fails, with the number of bytes of | |
723 | memory requested in SIZE. */ | |
724 | ||
725 | NORETURN void | |
726 | nomem (size) | |
727 | long size; | |
728 | { | |
729 | if (size > 0) | |
730 | { | |
731 | fatal ("virtual memory exhausted: can't allocate %ld bytes.", size); | |
732 | } | |
733 | else | |
734 | { | |
735 | fatal ("virtual memory exhausted."); | |
736 | } | |
737 | } | |
738 | ||
739 | /* Like mmalloc but get error if no storage available, and protect against | |
740 | the caller wanting to allocate zero bytes. Whether to return NULL for | |
741 | a zero byte request, or translate the request into a request for one | |
742 | byte of zero'd storage, is a religious issue. */ | |
743 | ||
744 | PTR | |
745 | xmmalloc (md, size) | |
746 | PTR md; | |
747 | long size; | |
748 | { | |
749 | register PTR val; | |
750 | ||
751 | if (size == 0) | |
752 | { | |
753 | val = NULL; | |
754 | } | |
755 | else if ((val = mmalloc (md, size)) == NULL) | |
756 | { | |
757 | nomem (size); | |
758 | } | |
759 | return (val); | |
760 | } | |
761 | ||
762 | /* Like mrealloc but get error if no storage available. */ | |
763 | ||
764 | PTR | |
765 | xmrealloc (md, ptr, size) | |
766 | PTR md; | |
767 | PTR ptr; | |
768 | long size; | |
769 | { | |
770 | register PTR val; | |
771 | ||
772 | if (ptr != NULL) | |
773 | { | |
774 | val = mrealloc (md, ptr, size); | |
775 | } | |
776 | else | |
777 | { | |
778 | val = mmalloc (md, size); | |
779 | } | |
780 | if (val == NULL) | |
781 | { | |
782 | nomem (size); | |
783 | } | |
784 | return (val); | |
785 | } | |
786 | ||
787 | /* Like malloc but get error if no storage available, and protect against | |
788 | the caller wanting to allocate zero bytes. */ | |
789 | ||
790 | PTR | |
791 | xmalloc (size) | |
03e2a8c8 | 792 | size_t size; |
3624c875 | 793 | { |
199b2450 | 794 | return (xmmalloc ((PTR) NULL, size)); |
3624c875 FF |
795 | } |
796 | ||
797 | /* Like mrealloc but get error if no storage available. */ | |
798 | ||
799 | PTR | |
800 | xrealloc (ptr, size) | |
801 | PTR ptr; | |
03e2a8c8 | 802 | size_t size; |
3624c875 | 803 | { |
199b2450 | 804 | return (xmrealloc ((PTR) NULL, ptr, size)); |
3624c875 FF |
805 | } |
806 | ||
bd5635a1 RP |
807 | \f |
808 | /* My replacement for the read system call. | |
809 | Used like `read' but keeps going if `read' returns too soon. */ | |
810 | ||
811 | int | |
812 | myread (desc, addr, len) | |
813 | int desc; | |
814 | char *addr; | |
815 | int len; | |
816 | { | |
817 | register int val; | |
818 | int orglen = len; | |
819 | ||
820 | while (len > 0) | |
821 | { | |
822 | val = read (desc, addr, len); | |
823 | if (val < 0) | |
824 | return val; | |
825 | if (val == 0) | |
826 | return orglen - len; | |
827 | len -= val; | |
828 | addr += val; | |
829 | } | |
830 | return orglen; | |
831 | } | |
832 | \f | |
833 | /* Make a copy of the string at PTR with SIZE characters | |
834 | (and add a null character at the end in the copy). | |
835 | Uses malloc to get the space. Returns the address of the copy. */ | |
836 | ||
837 | char * | |
838 | savestring (ptr, size) | |
088c3a0b | 839 | const char *ptr; |
bd5635a1 RP |
840 | int size; |
841 | { | |
842 | register char *p = (char *) xmalloc (size + 1); | |
4ed3a9ea | 843 | memcpy (p, ptr, size); |
bd5635a1 RP |
844 | p[size] = 0; |
845 | return p; | |
846 | } | |
847 | ||
3624c875 FF |
848 | char * |
849 | msavestring (md, ptr, size) | |
199b2450 | 850 | PTR md; |
3624c875 FF |
851 | const char *ptr; |
852 | int size; | |
853 | { | |
854 | register char *p = (char *) xmmalloc (md, size + 1); | |
4ed3a9ea | 855 | memcpy (p, ptr, size); |
3624c875 FF |
856 | p[size] = 0; |
857 | return p; | |
858 | } | |
859 | ||
8aa13b87 JK |
860 | /* The "const" is so it compiles under DGUX (which prototypes strsave |
861 | in <string.h>. FIXME: This should be named "xstrsave", shouldn't it? | |
862 | Doesn't real strsave return NULL if out of memory? */ | |
bd5635a1 RP |
863 | char * |
864 | strsave (ptr) | |
8aa13b87 | 865 | const char *ptr; |
bd5635a1 RP |
866 | { |
867 | return savestring (ptr, strlen (ptr)); | |
868 | } | |
869 | ||
3624c875 FF |
870 | char * |
871 | mstrsave (md, ptr) | |
199b2450 | 872 | PTR md; |
3624c875 FF |
873 | const char *ptr; |
874 | { | |
875 | return (msavestring (md, ptr, strlen (ptr))); | |
876 | } | |
877 | ||
bd5635a1 RP |
878 | void |
879 | print_spaces (n, file) | |
880 | register int n; | |
881 | register FILE *file; | |
882 | { | |
883 | while (n-- > 0) | |
884 | fputc (' ', file); | |
885 | } | |
886 | ||
8eec3310 SC |
887 | /* Print a host address. */ |
888 | ||
889 | void | |
890 | gdb_print_address (addr, stream) | |
891 | PTR addr; | |
892 | GDB_FILE *stream; | |
893 | { | |
894 | ||
895 | /* We could use the %p conversion specifier to fprintf if we had any | |
896 | way of knowing whether this host supports it. But the following | |
897 | should work on the Alpha and on 32 bit machines. */ | |
898 | ||
899 | fprintf_filtered (stream, "0x%lx", (unsigned long)addr); | |
900 | } | |
901 | ||
bd5635a1 RP |
902 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
903 | Takes three args which are given to printf to print the question. | |
904 | The first, a control string, should end in "? ". | |
905 | It should not say how to answer, because we do that. */ | |
906 | ||
907 | /* VARARGS */ | |
908 | int | |
45993f61 | 909 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
910 | query (char *ctlstr, ...) |
911 | #else | |
bd5635a1 RP |
912 | query (va_alist) |
913 | va_dcl | |
85c613aa | 914 | #endif |
bd5635a1 RP |
915 | { |
916 | va_list args; | |
bd5635a1 RP |
917 | register int answer; |
918 | register int ans2; | |
d8742f46 | 919 | int retval; |
bd5635a1 | 920 | |
45993f61 | 921 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
922 | va_start (args, ctlstr); |
923 | #else | |
924 | char *ctlstr; | |
925 | va_start (args); | |
926 | ctlstr = va_arg (args, char *); | |
927 | #endif | |
928 | ||
0d172a2e JK |
929 | if (query_hook) |
930 | { | |
85c613aa | 931 | return query_hook (ctlstr, args); |
0d172a2e JK |
932 | } |
933 | ||
bd5635a1 RP |
934 | /* Automatically answer "yes" if input is not from a terminal. */ |
935 | if (!input_from_terminal_p ()) | |
936 | return 1; | |
cad1498f | 937 | #ifdef MPW |
49073be0 | 938 | /* FIXME Automatically answer "yes" if called from MacGDB. */ |
cad1498f SG |
939 | if (mac_app) |
940 | return 1; | |
941 | #endif /* MPW */ | |
bd5635a1 RP |
942 | |
943 | while (1) | |
944 | { | |
546014f7 | 945 | wrap_here (""); /* Flush any buffered output */ |
199b2450 | 946 | gdb_flush (gdb_stdout); |
d8742f46 JK |
947 | |
948 | if (annotation_level > 1) | |
949 | printf_filtered ("\n\032\032pre-query\n"); | |
950 | ||
199b2450 | 951 | vfprintf_filtered (gdb_stdout, ctlstr, args); |
bcf2e6ab | 952 | printf_filtered ("(y or n) "); |
d8742f46 JK |
953 | |
954 | if (annotation_level > 1) | |
955 | printf_filtered ("\n\032\032query\n"); | |
956 | ||
cad1498f SG |
957 | #ifdef MPW |
958 | /* If not in MacGDB, move to a new line so the entered line doesn't | |
959 | have a prompt on the front of it. */ | |
960 | if (!mac_app) | |
961 | fputs_unfiltered ("\n", gdb_stdout); | |
962 | #endif /* MPW */ | |
49073be0 | 963 | |
199b2450 | 964 | gdb_flush (gdb_stdout); |
b36e3a9b SG |
965 | answer = fgetc (stdin); |
966 | clearerr (stdin); /* in case of C-d */ | |
967 | if (answer == EOF) /* C-d */ | |
d8742f46 JK |
968 | { |
969 | retval = 1; | |
970 | break; | |
971 | } | |
b36e3a9b SG |
972 | if (answer != '\n') /* Eat rest of input line, to EOF or newline */ |
973 | do | |
974 | { | |
975 | ans2 = fgetc (stdin); | |
976 | clearerr (stdin); | |
977 | } | |
978 | while (ans2 != EOF && ans2 != '\n'); | |
bd5635a1 RP |
979 | if (answer >= 'a') |
980 | answer -= 040; | |
981 | if (answer == 'Y') | |
d8742f46 JK |
982 | { |
983 | retval = 1; | |
984 | break; | |
985 | } | |
bd5635a1 | 986 | if (answer == 'N') |
d8742f46 JK |
987 | { |
988 | retval = 0; | |
989 | break; | |
990 | } | |
bcf2e6ab | 991 | printf_filtered ("Please answer y or n.\n"); |
bd5635a1 | 992 | } |
d8742f46 JK |
993 | |
994 | if (annotation_level > 1) | |
995 | printf_filtered ("\n\032\032post-query\n"); | |
996 | return retval; | |
bd5635a1 | 997 | } |
7919c3ed | 998 | |
bd5635a1 RP |
999 | \f |
1000 | /* Parse a C escape sequence. STRING_PTR points to a variable | |
1001 | containing a pointer to the string to parse. That pointer | |
1002 | should point to the character after the \. That pointer | |
1003 | is updated past the characters we use. The value of the | |
1004 | escape sequence is returned. | |
1005 | ||
1006 | A negative value means the sequence \ newline was seen, | |
1007 | which is supposed to be equivalent to nothing at all. | |
1008 | ||
1009 | If \ is followed by a null character, we return a negative | |
1010 | value and leave the string pointer pointing at the null character. | |
1011 | ||
1012 | If \ is followed by 000, we return 0 and leave the string pointer | |
1013 | after the zeros. A value of 0 does not mean end of string. */ | |
1014 | ||
1015 | int | |
1016 | parse_escape (string_ptr) | |
1017 | char **string_ptr; | |
1018 | { | |
1019 | register int c = *(*string_ptr)++; | |
1020 | switch (c) | |
1021 | { | |
1022 | case 'a': | |
2bc2e684 | 1023 | return 007; /* Bell (alert) char */ |
bd5635a1 RP |
1024 | case 'b': |
1025 | return '\b'; | |
2bc2e684 | 1026 | case 'e': /* Escape character */ |
bd5635a1 RP |
1027 | return 033; |
1028 | case 'f': | |
1029 | return '\f'; | |
1030 | case 'n': | |
1031 | return '\n'; | |
1032 | case 'r': | |
1033 | return '\r'; | |
1034 | case 't': | |
1035 | return '\t'; | |
1036 | case 'v': | |
1037 | return '\v'; | |
1038 | case '\n': | |
1039 | return -2; | |
1040 | case 0: | |
1041 | (*string_ptr)--; | |
1042 | return 0; | |
1043 | case '^': | |
1044 | c = *(*string_ptr)++; | |
1045 | if (c == '\\') | |
1046 | c = parse_escape (string_ptr); | |
1047 | if (c == '?') | |
1048 | return 0177; | |
1049 | return (c & 0200) | (c & 037); | |
1050 | ||
1051 | case '0': | |
1052 | case '1': | |
1053 | case '2': | |
1054 | case '3': | |
1055 | case '4': | |
1056 | case '5': | |
1057 | case '6': | |
1058 | case '7': | |
1059 | { | |
1060 | register int i = c - '0'; | |
1061 | register int count = 0; | |
1062 | while (++count < 3) | |
1063 | { | |
1064 | if ((c = *(*string_ptr)++) >= '0' && c <= '7') | |
1065 | { | |
1066 | i *= 8; | |
1067 | i += c - '0'; | |
1068 | } | |
1069 | else | |
1070 | { | |
1071 | (*string_ptr)--; | |
1072 | break; | |
1073 | } | |
1074 | } | |
1075 | return i; | |
1076 | } | |
1077 | default: | |
1078 | return c; | |
1079 | } | |
1080 | } | |
1081 | \f | |
51b80b00 FF |
1082 | /* Print the character C on STREAM as part of the contents of a literal |
1083 | string whose delimiter is QUOTER. Note that this routine should only | |
1084 | be call for printing things which are independent of the language | |
1085 | of the program being debugged. */ | |
bd5635a1 RP |
1086 | |
1087 | void | |
51b80b00 | 1088 | gdb_printchar (c, stream, quoter) |
088c3a0b | 1089 | register int c; |
bd5635a1 RP |
1090 | FILE *stream; |
1091 | int quoter; | |
1092 | { | |
bd5635a1 | 1093 | |
7e7e2d40 JG |
1094 | c &= 0xFF; /* Avoid sign bit follies */ |
1095 | ||
fcdb113e JG |
1096 | if ( c < 0x20 || /* Low control chars */ |
1097 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1098 | (sevenbit_strings && c >= 0x80)) { /* high order bit set */ | |
bd5635a1 RP |
1099 | switch (c) |
1100 | { | |
1101 | case '\n': | |
1102 | fputs_filtered ("\\n", stream); | |
1103 | break; | |
1104 | case '\b': | |
1105 | fputs_filtered ("\\b", stream); | |
1106 | break; | |
1107 | case '\t': | |
1108 | fputs_filtered ("\\t", stream); | |
1109 | break; | |
1110 | case '\f': | |
1111 | fputs_filtered ("\\f", stream); | |
1112 | break; | |
1113 | case '\r': | |
1114 | fputs_filtered ("\\r", stream); | |
1115 | break; | |
1116 | case '\033': | |
1117 | fputs_filtered ("\\e", stream); | |
1118 | break; | |
1119 | case '\007': | |
1120 | fputs_filtered ("\\a", stream); | |
1121 | break; | |
1122 | default: | |
1123 | fprintf_filtered (stream, "\\%.3o", (unsigned int) c); | |
1124 | break; | |
1125 | } | |
2bc2e684 FF |
1126 | } else { |
1127 | if (c == '\\' || c == quoter) | |
1128 | fputs_filtered ("\\", stream); | |
1129 | fprintf_filtered (stream, "%c", c); | |
1130 | } | |
bd5635a1 RP |
1131 | } |
1132 | \f | |
1133 | /* Number of lines per page or UINT_MAX if paging is disabled. */ | |
1134 | static unsigned int lines_per_page; | |
1135 | /* Number of chars per line or UNIT_MAX is line folding is disabled. */ | |
1136 | static unsigned int chars_per_line; | |
1137 | /* Current count of lines printed on this page, chars on this line. */ | |
1138 | static unsigned int lines_printed, chars_printed; | |
1139 | ||
1140 | /* Buffer and start column of buffered text, for doing smarter word- | |
1141 | wrapping. When someone calls wrap_here(), we start buffering output | |
1142 | that comes through fputs_filtered(). If we see a newline, we just | |
1143 | spit it out and forget about the wrap_here(). If we see another | |
1144 | wrap_here(), we spit it out and remember the newer one. If we see | |
1145 | the end of the line, we spit out a newline, the indent, and then | |
159dd2aa JK |
1146 | the buffered output. */ |
1147 | ||
1148 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1149 | are waiting to be output (they have already been counted in chars_printed). | |
1150 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1151 | static char *wrap_buffer; | |
bd5635a1 | 1152 | |
159dd2aa JK |
1153 | /* Pointer in wrap_buffer to the next character to fill. */ |
1154 | static char *wrap_pointer; | |
bd5635a1 | 1155 | |
159dd2aa JK |
1156 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column |
1157 | is non-zero. */ | |
1158 | static char *wrap_indent; | |
1159 | ||
1160 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1161 | is not in effect. */ | |
bd5635a1 RP |
1162 | static int wrap_column; |
1163 | ||
e1ce8aa5 | 1164 | /* ARGSUSED */ |
bd5635a1 RP |
1165 | static void |
1166 | set_width_command (args, from_tty, c) | |
1167 | char *args; | |
1168 | int from_tty; | |
1169 | struct cmd_list_element *c; | |
1170 | { | |
1171 | if (!wrap_buffer) | |
1172 | { | |
1173 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1174 | wrap_buffer[0] = '\0'; | |
1175 | } | |
1176 | else | |
1177 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
1178 | wrap_pointer = wrap_buffer; /* Start it at the beginning */ | |
1179 | } | |
1180 | ||
d974236f JG |
1181 | /* Wait, so the user can read what's on the screen. Prompt the user |
1182 | to continue by pressing RETURN. */ | |
1183 | ||
bd5635a1 RP |
1184 | static void |
1185 | prompt_for_continue () | |
1186 | { | |
351b221d | 1187 | char *ignore; |
d8742f46 JK |
1188 | char cont_prompt[120]; |
1189 | ||
4dd876ac JK |
1190 | if (annotation_level > 1) |
1191 | printf_unfiltered ("\n\032\032pre-prompt-for-continue\n"); | |
1192 | ||
d8742f46 JK |
1193 | strcpy (cont_prompt, |
1194 | "---Type <return> to continue, or q <return> to quit---"); | |
1195 | if (annotation_level > 1) | |
1196 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
351b221d | 1197 | |
d974236f JG |
1198 | /* We must do this *before* we call gdb_readline, else it will eventually |
1199 | call us -- thinking that we're trying to print beyond the end of the | |
1200 | screen. */ | |
1201 | reinitialize_more_filter (); | |
1202 | ||
bd5635a1 | 1203 | immediate_quit++; |
159dd2aa JK |
1204 | /* On a real operating system, the user can quit with SIGINT. |
1205 | But not on GO32. | |
1206 | ||
1207 | 'q' is provided on all systems so users don't have to change habits | |
1208 | from system to system, and because telling them what to do in | |
1209 | the prompt is more user-friendly than expecting them to think of | |
1210 | SIGINT. */ | |
a94100d1 JK |
1211 | /* Call readline, not gdb_readline, because GO32 readline handles control-C |
1212 | whereas control-C to gdb_readline will cause the user to get dumped | |
1213 | out to DOS. */ | |
d8742f46 | 1214 | ignore = readline (cont_prompt); |
4dd876ac JK |
1215 | |
1216 | if (annotation_level > 1) | |
1217 | printf_unfiltered ("\n\032\032post-prompt-for-continue\n"); | |
1218 | ||
351b221d | 1219 | if (ignore) |
159dd2aa JK |
1220 | { |
1221 | char *p = ignore; | |
1222 | while (*p == ' ' || *p == '\t') | |
1223 | ++p; | |
1224 | if (p[0] == 'q') | |
1225 | request_quit (SIGINT); | |
1226 | free (ignore); | |
1227 | } | |
bd5635a1 | 1228 | immediate_quit--; |
d974236f JG |
1229 | |
1230 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1231 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1232 | reinitialize_more_filter (); | |
1233 | ||
351b221d | 1234 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ |
bd5635a1 RP |
1235 | } |
1236 | ||
1237 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1238 | ||
1239 | void | |
1240 | reinitialize_more_filter () | |
1241 | { | |
1242 | lines_printed = 0; | |
1243 | chars_printed = 0; | |
1244 | } | |
1245 | ||
1246 | /* Indicate that if the next sequence of characters overflows the line, | |
1247 | a newline should be inserted here rather than when it hits the end. | |
159dd2aa | 1248 | If INDENT is non-null, it is a string to be printed to indent the |
bd5635a1 RP |
1249 | wrapped part on the next line. INDENT must remain accessible until |
1250 | the next call to wrap_here() or until a newline is printed through | |
1251 | fputs_filtered(). | |
1252 | ||
1253 | If the line is already overfull, we immediately print a newline and | |
1254 | the indentation, and disable further wrapping. | |
1255 | ||
2bc2e684 FF |
1256 | If we don't know the width of lines, but we know the page height, |
1257 | we must not wrap words, but should still keep track of newlines | |
1258 | that were explicitly printed. | |
1259 | ||
159dd2aa JK |
1260 | INDENT should not contain tabs, as that will mess up the char count |
1261 | on the next line. FIXME. | |
1262 | ||
1263 | This routine is guaranteed to force out any output which has been | |
1264 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1265 | used to force out output from the wrap_buffer. */ | |
bd5635a1 RP |
1266 | |
1267 | void | |
1268 | wrap_here(indent) | |
159dd2aa | 1269 | char *indent; |
bd5635a1 | 1270 | { |
cad1498f SG |
1271 | /* This should have been allocated, but be paranoid anyway. */ |
1272 | if (!wrap_buffer) | |
1273 | abort (); | |
1274 | ||
bd5635a1 RP |
1275 | if (wrap_buffer[0]) |
1276 | { | |
1277 | *wrap_pointer = '\0'; | |
d8fc8773 | 1278 | fputs_unfiltered (wrap_buffer, gdb_stdout); |
bd5635a1 RP |
1279 | } |
1280 | wrap_pointer = wrap_buffer; | |
1281 | wrap_buffer[0] = '\0'; | |
2bc2e684 FF |
1282 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
1283 | { | |
1284 | wrap_column = 0; | |
1285 | } | |
1286 | else if (chars_printed >= chars_per_line) | |
bd5635a1 RP |
1287 | { |
1288 | puts_filtered ("\n"); | |
159dd2aa JK |
1289 | if (indent != NULL) |
1290 | puts_filtered (indent); | |
bd5635a1 RP |
1291 | wrap_column = 0; |
1292 | } | |
1293 | else | |
1294 | { | |
1295 | wrap_column = chars_printed; | |
159dd2aa JK |
1296 | if (indent == NULL) |
1297 | wrap_indent = ""; | |
1298 | else | |
1299 | wrap_indent = indent; | |
bd5635a1 RP |
1300 | } |
1301 | } | |
1302 | ||
51b80b00 FF |
1303 | /* Ensure that whatever gets printed next, using the filtered output |
1304 | commands, starts at the beginning of the line. I.E. if there is | |
1305 | any pending output for the current line, flush it and start a new | |
1306 | line. Otherwise do nothing. */ | |
1307 | ||
1308 | void | |
1309 | begin_line () | |
1310 | { | |
1311 | if (chars_printed > 0) | |
1312 | { | |
1313 | puts_filtered ("\n"); | |
1314 | } | |
1315 | } | |
1316 | ||
199b2450 TL |
1317 | |
1318 | GDB_FILE * | |
1319 | gdb_fopen (name, mode) | |
1320 | char * name; | |
1321 | char * mode; | |
1322 | { | |
1323 | return fopen (name, mode); | |
1324 | } | |
1325 | ||
bd5635a1 | 1326 | void |
199b2450 TL |
1327 | gdb_flush (stream) |
1328 | FILE *stream; | |
1329 | { | |
0d172a2e JK |
1330 | if (flush_hook) |
1331 | { | |
1332 | flush_hook (stream); | |
1333 | return; | |
1334 | } | |
1335 | ||
199b2450 TL |
1336 | fflush (stream); |
1337 | } | |
1338 | ||
44a09a68 JK |
1339 | /* Like fputs but if FILTER is true, pause after every screenful. |
1340 | ||
1341 | Regardless of FILTER can wrap at points other than the final | |
1342 | character of a line. | |
1343 | ||
1344 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1345 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1346 | anything. | |
1347 | ||
1348 | Note that a longjmp to top level may occur in this routine (only if | |
1349 | FILTER is true) (since prompt_for_continue may do so) so this | |
1350 | routine should not be called when cleanups are not in place. */ | |
1351 | ||
199b2450 TL |
1352 | static void |
1353 | fputs_maybe_filtered (linebuffer, stream, filter) | |
088c3a0b | 1354 | const char *linebuffer; |
bd5635a1 | 1355 | FILE *stream; |
199b2450 | 1356 | int filter; |
bd5635a1 | 1357 | { |
7919c3ed | 1358 | const char *lineptr; |
bd5635a1 RP |
1359 | |
1360 | if (linebuffer == 0) | |
1361 | return; | |
0d172a2e | 1362 | |
bd5635a1 | 1363 | /* Don't do any filtering if it is disabled. */ |
199b2450 | 1364 | if (stream != gdb_stdout |
bd5635a1 RP |
1365 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
1366 | { | |
d8fc8773 | 1367 | fputs_unfiltered (linebuffer, stream); |
bd5635a1 RP |
1368 | return; |
1369 | } | |
1370 | ||
1371 | /* Go through and output each character. Show line extension | |
1372 | when this is necessary; prompt user for new page when this is | |
1373 | necessary. */ | |
1374 | ||
1375 | lineptr = linebuffer; | |
1376 | while (*lineptr) | |
1377 | { | |
1378 | /* Possible new page. */ | |
199b2450 TL |
1379 | if (filter && |
1380 | (lines_printed >= lines_per_page - 1)) | |
bd5635a1 RP |
1381 | prompt_for_continue (); |
1382 | ||
1383 | while (*lineptr && *lineptr != '\n') | |
1384 | { | |
1385 | /* Print a single line. */ | |
1386 | if (*lineptr == '\t') | |
1387 | { | |
1388 | if (wrap_column) | |
1389 | *wrap_pointer++ = '\t'; | |
1390 | else | |
d8fc8773 | 1391 | fputc_unfiltered ('\t', stream); |
bd5635a1 RP |
1392 | /* Shifting right by 3 produces the number of tab stops |
1393 | we have already passed, and then adding one and | |
1394 | shifting left 3 advances to the next tab stop. */ | |
1395 | chars_printed = ((chars_printed >> 3) + 1) << 3; | |
1396 | lineptr++; | |
1397 | } | |
1398 | else | |
1399 | { | |
1400 | if (wrap_column) | |
1401 | *wrap_pointer++ = *lineptr; | |
1402 | else | |
d8fc8773 | 1403 | fputc_unfiltered (*lineptr, stream); |
bd5635a1 RP |
1404 | chars_printed++; |
1405 | lineptr++; | |
1406 | } | |
1407 | ||
1408 | if (chars_printed >= chars_per_line) | |
1409 | { | |
1410 | unsigned int save_chars = chars_printed; | |
1411 | ||
1412 | chars_printed = 0; | |
1413 | lines_printed++; | |
1414 | /* If we aren't actually wrapping, don't output newline -- | |
1415 | if chars_per_line is right, we probably just overflowed | |
1416 | anyway; if it's wrong, let us keep going. */ | |
1417 | if (wrap_column) | |
d8fc8773 | 1418 | fputc_unfiltered ('\n', stream); |
bd5635a1 RP |
1419 | |
1420 | /* Possible new page. */ | |
1421 | if (lines_printed >= lines_per_page - 1) | |
1422 | prompt_for_continue (); | |
1423 | ||
1424 | /* Now output indentation and wrapped string */ | |
1425 | if (wrap_column) | |
1426 | { | |
d8fc8773 JK |
1427 | fputs_unfiltered (wrap_indent, stream); |
1428 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ | |
1429 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ | |
bd5635a1 RP |
1430 | /* FIXME, this strlen is what prevents wrap_indent from |
1431 | containing tabs. However, if we recurse to print it | |
1432 | and count its chars, we risk trouble if wrap_indent is | |
1433 | longer than (the user settable) chars_per_line. | |
1434 | Note also that this can set chars_printed > chars_per_line | |
1435 | if we are printing a long string. */ | |
1436 | chars_printed = strlen (wrap_indent) | |
1437 | + (save_chars - wrap_column); | |
1438 | wrap_pointer = wrap_buffer; /* Reset buffer */ | |
1439 | wrap_buffer[0] = '\0'; | |
1440 | wrap_column = 0; /* And disable fancy wrap */ | |
1441 | } | |
1442 | } | |
1443 | } | |
1444 | ||
1445 | if (*lineptr == '\n') | |
1446 | { | |
1447 | chars_printed = 0; | |
d11c44f1 | 1448 | wrap_here ((char *)0); /* Spit out chars, cancel further wraps */ |
bd5635a1 | 1449 | lines_printed++; |
d8fc8773 | 1450 | fputc_unfiltered ('\n', stream); |
bd5635a1 RP |
1451 | lineptr++; |
1452 | } | |
1453 | } | |
1454 | } | |
1455 | ||
199b2450 TL |
1456 | void |
1457 | fputs_filtered (linebuffer, stream) | |
1458 | const char *linebuffer; | |
1459 | FILE *stream; | |
1460 | { | |
1461 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1462 | } | |
1463 | ||
a7f6f40b JK |
1464 | int |
1465 | putchar_unfiltered (c) | |
199b2450 TL |
1466 | int c; |
1467 | { | |
1468 | char buf[2]; | |
a7f6f40b | 1469 | |
199b2450 TL |
1470 | buf[0] = c; |
1471 | buf[1] = 0; | |
1472 | fputs_unfiltered (buf, gdb_stdout); | |
a7f6f40b | 1473 | return c; |
199b2450 TL |
1474 | } |
1475 | ||
a7f6f40b | 1476 | int |
199b2450 TL |
1477 | fputc_unfiltered (c, stream) |
1478 | int c; | |
1479 | FILE * stream; | |
1480 | { | |
1481 | char buf[2]; | |
a7f6f40b | 1482 | |
199b2450 TL |
1483 | buf[0] = c; |
1484 | buf[1] = 0; | |
1485 | fputs_unfiltered (buf, stream); | |
a7f6f40b | 1486 | return c; |
199b2450 TL |
1487 | } |
1488 | ||
1489 | ||
bd5635a1 RP |
1490 | /* Print a variable number of ARGS using format FORMAT. If this |
1491 | information is going to put the amount written (since the last call | |
d974236f | 1492 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, |
d8fc8773 | 1493 | call prompt_for_continue to get the users permision to continue. |
bd5635a1 RP |
1494 | |
1495 | Unlike fprintf, this function does not return a value. | |
1496 | ||
1497 | We implement three variants, vfprintf (takes a vararg list and stream), | |
1498 | fprintf (takes a stream to write on), and printf (the usual). | |
1499 | ||
bd5635a1 RP |
1500 | Note also that a longjmp to top level may occur in this routine |
1501 | (since prompt_for_continue may do so) so this routine should not be | |
1502 | called when cleanups are not in place. */ | |
1503 | ||
199b2450 TL |
1504 | static void |
1505 | vfprintf_maybe_filtered (stream, format, args, filter) | |
bd5635a1 | 1506 | FILE *stream; |
b607efe7 | 1507 | const char *format; |
7919c3ed | 1508 | va_list args; |
199b2450 | 1509 | int filter; |
bd5635a1 | 1510 | { |
d8fc8773 JK |
1511 | char *linebuffer; |
1512 | struct cleanup *old_cleanups; | |
bd5635a1 | 1513 | |
d8fc8773 JK |
1514 | vasprintf (&linebuffer, format, args); |
1515 | if (linebuffer == NULL) | |
9c036bd8 JK |
1516 | { |
1517 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
1518 | exit (1); | |
1519 | } | |
d8fc8773 | 1520 | old_cleanups = make_cleanup (free, linebuffer); |
199b2450 | 1521 | fputs_maybe_filtered (linebuffer, stream, filter); |
d8fc8773 | 1522 | do_cleanups (old_cleanups); |
199b2450 TL |
1523 | } |
1524 | ||
1525 | ||
1526 | void | |
1527 | vfprintf_filtered (stream, format, args) | |
1528 | FILE *stream; | |
cd10c7e3 | 1529 | const char *format; |
199b2450 TL |
1530 | va_list args; |
1531 | { | |
1532 | vfprintf_maybe_filtered (stream, format, args, 1); | |
1533 | } | |
1534 | ||
1535 | void | |
1536 | vfprintf_unfiltered (stream, format, args) | |
1537 | FILE *stream; | |
cd10c7e3 | 1538 | const char *format; |
199b2450 TL |
1539 | va_list args; |
1540 | { | |
d8fc8773 JK |
1541 | char *linebuffer; |
1542 | struct cleanup *old_cleanups; | |
1543 | ||
1544 | vasprintf (&linebuffer, format, args); | |
1545 | if (linebuffer == NULL) | |
9c036bd8 JK |
1546 | { |
1547 | fputs_unfiltered ("\ngdb: virtual memory exhausted.\n", gdb_stderr); | |
1548 | exit (1); | |
1549 | } | |
d8fc8773 JK |
1550 | old_cleanups = make_cleanup (free, linebuffer); |
1551 | fputs_unfiltered (linebuffer, stream); | |
1552 | do_cleanups (old_cleanups); | |
bd5635a1 RP |
1553 | } |
1554 | ||
51b80b00 FF |
1555 | void |
1556 | vprintf_filtered (format, args) | |
cd10c7e3 | 1557 | const char *format; |
51b80b00 FF |
1558 | va_list args; |
1559 | { | |
199b2450 TL |
1560 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); |
1561 | } | |
1562 | ||
1563 | void | |
1564 | vprintf_unfiltered (format, args) | |
cd10c7e3 | 1565 | const char *format; |
199b2450 TL |
1566 | va_list args; |
1567 | { | |
d8fc8773 | 1568 | vfprintf_unfiltered (gdb_stdout, format, args); |
51b80b00 FF |
1569 | } |
1570 | ||
bd5635a1 RP |
1571 | /* VARARGS */ |
1572 | void | |
45993f61 | 1573 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1574 | fprintf_filtered (FILE *stream, const char *format, ...) |
85c613aa | 1575 | #else |
bd5635a1 RP |
1576 | fprintf_filtered (va_alist) |
1577 | va_dcl | |
85c613aa | 1578 | #endif |
bd5635a1 | 1579 | { |
546014f7 | 1580 | va_list args; |
45993f61 | 1581 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1582 | va_start (args, format); |
1583 | #else | |
bd5635a1 RP |
1584 | FILE *stream; |
1585 | char *format; | |
546014f7 PB |
1586 | |
1587 | va_start (args); | |
1588 | stream = va_arg (args, FILE *); | |
1589 | format = va_arg (args, char *); | |
85c613aa | 1590 | #endif |
546014f7 PB |
1591 | vfprintf_filtered (stream, format, args); |
1592 | va_end (args); | |
1593 | } | |
1594 | ||
199b2450 TL |
1595 | /* VARARGS */ |
1596 | void | |
45993f61 | 1597 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1598 | fprintf_unfiltered (FILE *stream, const char *format, ...) |
85c613aa | 1599 | #else |
199b2450 TL |
1600 | fprintf_unfiltered (va_alist) |
1601 | va_dcl | |
85c613aa | 1602 | #endif |
199b2450 TL |
1603 | { |
1604 | va_list args; | |
45993f61 | 1605 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1606 | va_start (args, format); |
1607 | #else | |
199b2450 TL |
1608 | FILE *stream; |
1609 | char *format; | |
1610 | ||
1611 | va_start (args); | |
1612 | stream = va_arg (args, FILE *); | |
1613 | format = va_arg (args, char *); | |
85c613aa | 1614 | #endif |
199b2450 TL |
1615 | vfprintf_unfiltered (stream, format, args); |
1616 | va_end (args); | |
1617 | } | |
1618 | ||
d8fc8773 | 1619 | /* Like fprintf_filtered, but prints its result indented. |
199b2450 | 1620 | Called as fprintfi_filtered (spaces, stream, format, ...); */ |
546014f7 PB |
1621 | |
1622 | /* VARARGS */ | |
1623 | void | |
45993f61 | 1624 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1625 | fprintfi_filtered (int spaces, FILE *stream, const char *format, ...) |
85c613aa | 1626 | #else |
546014f7 PB |
1627 | fprintfi_filtered (va_alist) |
1628 | va_dcl | |
85c613aa | 1629 | #endif |
546014f7 | 1630 | { |
7919c3ed | 1631 | va_list args; |
45993f61 | 1632 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1633 | va_start (args, format); |
1634 | #else | |
546014f7 PB |
1635 | int spaces; |
1636 | FILE *stream; | |
1637 | char *format; | |
bd5635a1 RP |
1638 | |
1639 | va_start (args); | |
546014f7 | 1640 | spaces = va_arg (args, int); |
bd5635a1 RP |
1641 | stream = va_arg (args, FILE *); |
1642 | format = va_arg (args, char *); | |
85c613aa | 1643 | #endif |
546014f7 | 1644 | print_spaces_filtered (spaces, stream); |
bd5635a1 | 1645 | |
7919c3ed | 1646 | vfprintf_filtered (stream, format, args); |
bd5635a1 RP |
1647 | va_end (args); |
1648 | } | |
1649 | ||
199b2450 | 1650 | |
bd5635a1 RP |
1651 | /* VARARGS */ |
1652 | void | |
45993f61 | 1653 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1654 | printf_filtered (const char *format, ...) |
85c613aa | 1655 | #else |
bd5635a1 RP |
1656 | printf_filtered (va_alist) |
1657 | va_dcl | |
85c613aa | 1658 | #endif |
bd5635a1 RP |
1659 | { |
1660 | va_list args; | |
45993f61 | 1661 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1662 | va_start (args, format); |
1663 | #else | |
bd5635a1 RP |
1664 | char *format; |
1665 | ||
1666 | va_start (args); | |
1667 | format = va_arg (args, char *); | |
85c613aa | 1668 | #endif |
199b2450 TL |
1669 | vfprintf_filtered (gdb_stdout, format, args); |
1670 | va_end (args); | |
1671 | } | |
1672 | ||
1673 | ||
1674 | /* VARARGS */ | |
1675 | void | |
45993f61 | 1676 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1677 | printf_unfiltered (const char *format, ...) |
85c613aa | 1678 | #else |
199b2450 TL |
1679 | printf_unfiltered (va_alist) |
1680 | va_dcl | |
85c613aa | 1681 | #endif |
199b2450 TL |
1682 | { |
1683 | va_list args; | |
45993f61 | 1684 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1685 | va_start (args, format); |
1686 | #else | |
199b2450 TL |
1687 | char *format; |
1688 | ||
1689 | va_start (args); | |
1690 | format = va_arg (args, char *); | |
85c613aa | 1691 | #endif |
199b2450 | 1692 | vfprintf_unfiltered (gdb_stdout, format, args); |
bd5635a1 RP |
1693 | va_end (args); |
1694 | } | |
bd5635a1 | 1695 | |
546014f7 | 1696 | /* Like printf_filtered, but prints it's result indented. |
199b2450 | 1697 | Called as printfi_filtered (spaces, format, ...); */ |
546014f7 PB |
1698 | |
1699 | /* VARARGS */ | |
1700 | void | |
45993f61 | 1701 | #ifdef ANSI_PROTOTYPES |
cd10c7e3 | 1702 | printfi_filtered (int spaces, const char *format, ...) |
85c613aa | 1703 | #else |
546014f7 PB |
1704 | printfi_filtered (va_alist) |
1705 | va_dcl | |
85c613aa | 1706 | #endif |
546014f7 PB |
1707 | { |
1708 | va_list args; | |
45993f61 | 1709 | #ifdef ANSI_PROTOTYPES |
85c613aa C |
1710 | va_start (args, format); |
1711 | #else | |
546014f7 PB |
1712 | int spaces; |
1713 | char *format; | |
1714 | ||
1715 | va_start (args); | |
1716 | spaces = va_arg (args, int); | |
1717 | format = va_arg (args, char *); | |
85c613aa | 1718 | #endif |
199b2450 TL |
1719 | print_spaces_filtered (spaces, gdb_stdout); |
1720 | vfprintf_filtered (gdb_stdout, format, args); | |
546014f7 PB |
1721 | va_end (args); |
1722 | } | |
1723 | ||
51b80b00 FF |
1724 | /* Easy -- but watch out! |
1725 | ||
1726 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
1727 | This one doesn't, and had better not! */ | |
bd5635a1 RP |
1728 | |
1729 | void | |
1730 | puts_filtered (string) | |
cd10c7e3 | 1731 | const char *string; |
bd5635a1 | 1732 | { |
199b2450 TL |
1733 | fputs_filtered (string, gdb_stdout); |
1734 | } | |
1735 | ||
1736 | void | |
1737 | puts_unfiltered (string) | |
cd10c7e3 | 1738 | const char *string; |
199b2450 TL |
1739 | { |
1740 | fputs_unfiltered (string, gdb_stdout); | |
bd5635a1 RP |
1741 | } |
1742 | ||
1743 | /* Return a pointer to N spaces and a null. The pointer is good | |
1744 | until the next call to here. */ | |
1745 | char * | |
1746 | n_spaces (n) | |
1747 | int n; | |
1748 | { | |
1749 | register char *t; | |
1750 | static char *spaces; | |
1751 | static int max_spaces; | |
1752 | ||
1753 | if (n > max_spaces) | |
1754 | { | |
1755 | if (spaces) | |
1756 | free (spaces); | |
3624c875 | 1757 | spaces = (char *) xmalloc (n+1); |
bd5635a1 RP |
1758 | for (t = spaces+n; t != spaces;) |
1759 | *--t = ' '; | |
1760 | spaces[n] = '\0'; | |
1761 | max_spaces = n; | |
1762 | } | |
1763 | ||
1764 | return spaces + max_spaces - n; | |
1765 | } | |
1766 | ||
1767 | /* Print N spaces. */ | |
1768 | void | |
1769 | print_spaces_filtered (n, stream) | |
1770 | int n; | |
1771 | FILE *stream; | |
1772 | { | |
1773 | fputs_filtered (n_spaces (n), stream); | |
1774 | } | |
1775 | \f | |
1776 | /* C++ demangler stuff. */ | |
bd5635a1 | 1777 | |
65ce5df4 JG |
1778 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
1779 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
1780 | If the name is not mangled, or the language for the name is unknown, or | |
1781 | demangling is off, the name is printed in its "raw" form. */ | |
1782 | ||
bd5635a1 | 1783 | void |
65ce5df4 | 1784 | fprintf_symbol_filtered (stream, name, lang, arg_mode) |
bd5635a1 RP |
1785 | FILE *stream; |
1786 | char *name; | |
65ce5df4 JG |
1787 | enum language lang; |
1788 | int arg_mode; | |
bd5635a1 | 1789 | { |
65ce5df4 | 1790 | char *demangled; |
bd5d07d9 | 1791 | |
65ce5df4 | 1792 | if (name != NULL) |
bd5d07d9 | 1793 | { |
65ce5df4 JG |
1794 | /* If user wants to see raw output, no problem. */ |
1795 | if (!demangle) | |
bd5d07d9 | 1796 | { |
65ce5df4 JG |
1797 | fputs_filtered (name, stream); |
1798 | } | |
1799 | else | |
1800 | { | |
1801 | switch (lang) | |
1802 | { | |
1803 | case language_cplus: | |
1804 | demangled = cplus_demangle (name, arg_mode); | |
1805 | break; | |
65ce5df4 JG |
1806 | case language_chill: |
1807 | demangled = chill_demangle (name); | |
1808 | break; | |
65ce5df4 JG |
1809 | default: |
1810 | demangled = NULL; | |
1811 | break; | |
1812 | } | |
1813 | fputs_filtered (demangled ? demangled : name, stream); | |
1814 | if (demangled != NULL) | |
1815 | { | |
1816 | free (demangled); | |
1817 | } | |
bd5d07d9 | 1818 | } |
bd5635a1 RP |
1819 | } |
1820 | } | |
51b57ded FF |
1821 | |
1822 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
1823 | differences in whitespace. Returns 0 if they match, non-zero if they | |
546014f7 PB |
1824 | don't (slightly different than strcmp()'s range of return values). |
1825 | ||
1826 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". | |
2e4964ad FF |
1827 | This "feature" is useful when searching for matching C++ function names |
1828 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
1829 | function). */ | |
51b57ded | 1830 | |
51b80b00 | 1831 | int |
51b57ded FF |
1832 | strcmp_iw (string1, string2) |
1833 | const char *string1; | |
1834 | const char *string2; | |
1835 | { | |
1836 | while ((*string1 != '\0') && (*string2 != '\0')) | |
1837 | { | |
1838 | while (isspace (*string1)) | |
1839 | { | |
1840 | string1++; | |
1841 | } | |
1842 | while (isspace (*string2)) | |
1843 | { | |
1844 | string2++; | |
1845 | } | |
1846 | if (*string1 != *string2) | |
1847 | { | |
1848 | break; | |
1849 | } | |
1850 | if (*string1 != '\0') | |
1851 | { | |
1852 | string1++; | |
1853 | string2++; | |
1854 | } | |
1855 | } | |
546014f7 | 1856 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); |
51b57ded FF |
1857 | } |
1858 | ||
bd5635a1 | 1859 | \f |
bd5635a1 | 1860 | void |
0d172a2e | 1861 | initialize_utils () |
bd5635a1 RP |
1862 | { |
1863 | struct cmd_list_element *c; | |
1864 | ||
1865 | c = add_set_cmd ("width", class_support, var_uinteger, | |
1866 | (char *)&chars_per_line, | |
1867 | "Set number of characters gdb thinks are in a line.", | |
1868 | &setlist); | |
1869 | add_show_from_set (c, &showlist); | |
d747e0af | 1870 | c->function.sfunc = set_width_command; |
bd5635a1 RP |
1871 | |
1872 | add_show_from_set | |
1873 | (add_set_cmd ("height", class_support, | |
1874 | var_uinteger, (char *)&lines_per_page, | |
1875 | "Set number of lines gdb thinks are in a page.", &setlist), | |
1876 | &showlist); | |
1877 | ||
1878 | /* These defaults will be used if we are unable to get the correct | |
1879 | values from termcap. */ | |
03e2a8c8 | 1880 | #if defined(__GO32__) |
51b57ded FF |
1881 | lines_per_page = ScreenRows(); |
1882 | chars_per_line = ScreenCols(); | |
1883 | #else | |
bd5635a1 RP |
1884 | lines_per_page = 24; |
1885 | chars_per_line = 80; | |
49073be0 | 1886 | |
03e2a8c8 | 1887 | #if !defined MPW && !defined _WIN32 |
a6b26c44 SS |
1888 | /* No termcap under MPW, although might be cool to do something |
1889 | by looking at worksheet or console window sizes. */ | |
bd5635a1 RP |
1890 | /* Initialize the screen height and width from termcap. */ |
1891 | { | |
1892 | char *termtype = getenv ("TERM"); | |
1893 | ||
1894 | /* Positive means success, nonpositive means failure. */ | |
1895 | int status; | |
1896 | ||
1897 | /* 2048 is large enough for all known terminals, according to the | |
1898 | GNU termcap manual. */ | |
1899 | char term_buffer[2048]; | |
1900 | ||
1901 | if (termtype) | |
1902 | { | |
1903 | status = tgetent (term_buffer, termtype); | |
1904 | if (status > 0) | |
1905 | { | |
1906 | int val; | |
1907 | ||
1908 | val = tgetnum ("li"); | |
1909 | if (val >= 0) | |
1910 | lines_per_page = val; | |
1911 | else | |
1912 | /* The number of lines per page is not mentioned | |
1913 | in the terminal description. This probably means | |
1914 | that paging is not useful (e.g. emacs shell window), | |
1915 | so disable paging. */ | |
1916 | lines_per_page = UINT_MAX; | |
1917 | ||
1918 | val = tgetnum ("co"); | |
1919 | if (val >= 0) | |
1920 | chars_per_line = val; | |
1921 | } | |
1922 | } | |
1923 | } | |
a6b26c44 | 1924 | #endif /* MPW */ |
bd5635a1 | 1925 | |
1eeba686 PB |
1926 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
1927 | ||
4ace50a5 | 1928 | /* If there is a better way to determine the window size, use it. */ |
1eeba686 PB |
1929 | SIGWINCH_HANDLER (); |
1930 | #endif | |
51b57ded | 1931 | #endif |
2bc2e684 | 1932 | /* If the output is not a terminal, don't paginate it. */ |
199b2450 | 1933 | if (!ISATTY (gdb_stdout)) |
2bc2e684 FF |
1934 | lines_per_page = UINT_MAX; |
1935 | ||
bd5635a1 RP |
1936 | set_width_command ((char *)NULL, 0, c); |
1937 | ||
1938 | add_show_from_set | |
1939 | (add_set_cmd ("demangle", class_support, var_boolean, | |
1940 | (char *)&demangle, | |
1941 | "Set demangling of encoded C++ names when displaying symbols.", | |
f266e564 JK |
1942 | &setprintlist), |
1943 | &showprintlist); | |
bd5635a1 RP |
1944 | |
1945 | add_show_from_set | |
1946 | (add_set_cmd ("sevenbit-strings", class_support, var_boolean, | |
1947 | (char *)&sevenbit_strings, | |
1948 | "Set printing of 8-bit characters in strings as \\nnn.", | |
f266e564 JK |
1949 | &setprintlist), |
1950 | &showprintlist); | |
bd5635a1 RP |
1951 | |
1952 | add_show_from_set | |
1953 | (add_set_cmd ("asm-demangle", class_support, var_boolean, | |
1954 | (char *)&asm_demangle, | |
1955 | "Set demangling of C++ names in disassembly listings.", | |
f266e564 JK |
1956 | &setprintlist), |
1957 | &showprintlist); | |
bd5635a1 | 1958 | } |
1eeba686 PB |
1959 | |
1960 | /* Machine specific function to handle SIGWINCH signal. */ | |
1961 | ||
1962 | #ifdef SIGWINCH_HANDLER_BODY | |
1963 | SIGWINCH_HANDLER_BODY | |
1964 | #endif | |
a243a22f | 1965 | \f |
54109914 | 1966 | /* Support for converting target fp numbers into host DOUBLEST format. */ |
a243a22f SG |
1967 | |
1968 | /* XXX - This code should really be in libiberty/floatformat.c, however | |
1969 | configuration issues with libiberty made this very difficult to do in the | |
1970 | available time. */ | |
1971 | ||
1972 | #include "floatformat.h" | |
1973 | #include <math.h> /* ldexp */ | |
1974 | ||
1975 | /* The odds that CHAR_BIT will be anything but 8 are low enough that I'm not | |
1976 | going to bother with trying to muck around with whether it is defined in | |
1977 | a system header, what we do if not, etc. */ | |
1978 | #define FLOATFORMAT_CHAR_BIT 8 | |
1979 | ||
1980 | static unsigned long get_field PARAMS ((unsigned char *, | |
1981 | enum floatformat_byteorders, | |
1982 | unsigned int, | |
1983 | unsigned int, | |
1984 | unsigned int)); | |
1985 | ||
1986 | /* Extract a field which starts at START and is LEN bytes long. DATA and | |
1987 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
1988 | static unsigned long | |
1989 | get_field (data, order, total_len, start, len) | |
1990 | unsigned char *data; | |
1991 | enum floatformat_byteorders order; | |
1992 | unsigned int total_len; | |
1993 | unsigned int start; | |
1994 | unsigned int len; | |
1995 | { | |
1996 | unsigned long result; | |
1997 | unsigned int cur_byte; | |
1998 | int cur_bitshift; | |
1999 | ||
2000 | /* Start at the least significant part of the field. */ | |
2001 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
2002 | if (order == floatformat_little) | |
2003 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
2004 | cur_bitshift = | |
2005 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
2006 | result = *(data + cur_byte) >> (-cur_bitshift); | |
2007 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
2008 | if (order == floatformat_little) | |
2009 | ++cur_byte; | |
2010 | else | |
2011 | --cur_byte; | |
2012 | ||
2013 | /* Move towards the most significant part of the field. */ | |
2014 | while (cur_bitshift < len) | |
2015 | { | |
2016 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
2017 | /* This is the last byte; zero out the bits which are not part of | |
2018 | this field. */ | |
2019 | result |= | |
2020 | (*(data + cur_byte) & ((1 << (len - cur_bitshift)) - 1)) | |
2021 | << cur_bitshift; | |
2022 | else | |
2023 | result |= *(data + cur_byte) << cur_bitshift; | |
2024 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
2025 | if (order == floatformat_little) | |
2026 | ++cur_byte; | |
2027 | else | |
2028 | --cur_byte; | |
2029 | } | |
2030 | return result; | |
2031 | } | |
2032 | ||
54109914 | 2033 | /* Convert from FMT to a DOUBLEST. |
a243a22f | 2034 | FROM is the address of the extended float. |
54109914 | 2035 | Store the DOUBLEST in *TO. */ |
a243a22f SG |
2036 | |
2037 | void | |
54109914 | 2038 | floatformat_to_doublest (fmt, from, to) |
a243a22f SG |
2039 | const struct floatformat *fmt; |
2040 | char *from; | |
54109914 | 2041 | DOUBLEST *to; |
a243a22f SG |
2042 | { |
2043 | unsigned char *ufrom = (unsigned char *)from; | |
54109914 | 2044 | DOUBLEST dto; |
a243a22f SG |
2045 | long exponent; |
2046 | unsigned long mant; | |
2047 | unsigned int mant_bits, mant_off; | |
2048 | int mant_bits_left; | |
449abd89 | 2049 | int special_exponent; /* It's a NaN, denorm or zero */ |
a243a22f SG |
2050 | |
2051 | exponent = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
2052 | fmt->exp_start, fmt->exp_len); | |
2053 | /* Note that if exponent indicates a NaN, we can't really do anything useful | |
2054 | (not knowing if the host has NaN's, or how to build one). So it will | |
2055 | end up as an infinity or something close; that is OK. */ | |
2056 | ||
2057 | mant_bits_left = fmt->man_len; | |
2058 | mant_off = fmt->man_start; | |
2059 | dto = 0.0; | |
449abd89 SG |
2060 | |
2061 | special_exponent = exponent == 0 || exponent == fmt->exp_nan; | |
2062 | ||
2063 | /* Don't bias zero's, denorms or NaNs. */ | |
2064 | if (!special_exponent) | |
2065 | exponent -= fmt->exp_bias; | |
a243a22f SG |
2066 | |
2067 | /* Build the result algebraically. Might go infinite, underflow, etc; | |
2068 | who cares. */ | |
2069 | ||
2070 | /* If this format uses a hidden bit, explicitly add it in now. Otherwise, | |
2071 | increment the exponent by one to account for the integer bit. */ | |
2072 | ||
449abd89 SG |
2073 | if (!special_exponent) |
2074 | if (fmt->intbit == floatformat_intbit_no) | |
2075 | dto = ldexp (1.0, exponent); | |
2076 | else | |
2077 | exponent++; | |
a243a22f SG |
2078 | |
2079 | while (mant_bits_left > 0) | |
2080 | { | |
2081 | mant_bits = min (mant_bits_left, 32); | |
2082 | ||
2083 | mant = get_field (ufrom, fmt->byteorder, fmt->totalsize, | |
2084 | mant_off, mant_bits); | |
2085 | ||
2086 | dto += ldexp ((double)mant, exponent - mant_bits); | |
2087 | exponent -= mant_bits; | |
2088 | mant_off += mant_bits; | |
2089 | mant_bits_left -= mant_bits; | |
2090 | } | |
2091 | ||
2092 | /* Negate it if negative. */ | |
2093 | if (get_field (ufrom, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1)) | |
2094 | dto = -dto; | |
449abd89 | 2095 | *to = dto; |
a243a22f SG |
2096 | } |
2097 | \f | |
2098 | static void put_field PARAMS ((unsigned char *, enum floatformat_byteorders, | |
2099 | unsigned int, | |
2100 | unsigned int, | |
2101 | unsigned int, | |
2102 | unsigned long)); | |
2103 | ||
2104 | /* Set a field which starts at START and is LEN bytes long. DATA and | |
2105 | TOTAL_LEN are the thing we are extracting it from, in byteorder ORDER. */ | |
2106 | static void | |
2107 | put_field (data, order, total_len, start, len, stuff_to_put) | |
2108 | unsigned char *data; | |
2109 | enum floatformat_byteorders order; | |
2110 | unsigned int total_len; | |
2111 | unsigned int start; | |
2112 | unsigned int len; | |
2113 | unsigned long stuff_to_put; | |
2114 | { | |
2115 | unsigned int cur_byte; | |
2116 | int cur_bitshift; | |
2117 | ||
2118 | /* Start at the least significant part of the field. */ | |
2119 | cur_byte = (start + len) / FLOATFORMAT_CHAR_BIT; | |
2120 | if (order == floatformat_little) | |
2121 | cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) - cur_byte - 1; | |
2122 | cur_bitshift = | |
2123 | ((start + len) % FLOATFORMAT_CHAR_BIT) - FLOATFORMAT_CHAR_BIT; | |
2124 | *(data + cur_byte) &= | |
2125 | ~(((1 << ((start + len) % FLOATFORMAT_CHAR_BIT)) - 1) << (-cur_bitshift)); | |
2126 | *(data + cur_byte) |= | |
2127 | (stuff_to_put & ((1 << FLOATFORMAT_CHAR_BIT) - 1)) << (-cur_bitshift); | |
2128 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
2129 | if (order == floatformat_little) | |
2130 | ++cur_byte; | |
2131 | else | |
2132 | --cur_byte; | |
2133 | ||
2134 | /* Move towards the most significant part of the field. */ | |
2135 | while (cur_bitshift < len) | |
2136 | { | |
2137 | if (len - cur_bitshift < FLOATFORMAT_CHAR_BIT) | |
2138 | { | |
2139 | /* This is the last byte. */ | |
2140 | *(data + cur_byte) &= | |
2141 | ~((1 << (len - cur_bitshift)) - 1); | |
2142 | *(data + cur_byte) |= (stuff_to_put >> cur_bitshift); | |
2143 | } | |
2144 | else | |
2145 | *(data + cur_byte) = ((stuff_to_put >> cur_bitshift) | |
2146 | & ((1 << FLOATFORMAT_CHAR_BIT) - 1)); | |
2147 | cur_bitshift += FLOATFORMAT_CHAR_BIT; | |
2148 | if (order == floatformat_little) | |
2149 | ++cur_byte; | |
2150 | else | |
2151 | --cur_byte; | |
2152 | } | |
2153 | } | |
2154 | ||
54109914 | 2155 | #ifdef HAVE_LONG_DOUBLE |
a243a22f SG |
2156 | /* Return the fractional part of VALUE, and put the exponent of VALUE in *EPTR. |
2157 | The range of the returned value is >= 0.5 and < 1.0. This is equivalent to | |
2158 | frexp, but operates on the long double data type. */ | |
2159 | ||
2160 | static long double ldfrexp PARAMS ((long double value, int *eptr)); | |
2161 | ||
2162 | static long double | |
2163 | ldfrexp (value, eptr) | |
2164 | long double value; | |
2165 | int *eptr; | |
2166 | { | |
2167 | long double tmp; | |
2168 | int exp; | |
2169 | ||
2170 | /* Unfortunately, there are no portable functions for extracting the exponent | |
2171 | of a long double, so we have to do it iteratively by multiplying or dividing | |
2172 | by two until the fraction is between 0.5 and 1.0. */ | |
2173 | ||
2174 | if (value < 0.0l) | |
2175 | value = -value; | |
2176 | ||
2177 | tmp = 1.0l; | |
2178 | exp = 0; | |
2179 | ||
2180 | if (value >= tmp) /* Value >= 1.0 */ | |
2181 | while (value >= tmp) | |
2182 | { | |
2183 | tmp *= 2.0l; | |
2184 | exp++; | |
2185 | } | |
2186 | else if (value != 0.0l) /* Value < 1.0 and > 0.0 */ | |
2187 | { | |
2188 | while (value < tmp) | |
2189 | { | |
2190 | tmp /= 2.0l; | |
2191 | exp--; | |
2192 | } | |
2193 | tmp *= 2.0l; | |
2194 | exp++; | |
2195 | } | |
2196 | ||
2197 | *eptr = exp; | |
2198 | return value/tmp; | |
2199 | } | |
54109914 FF |
2200 | #endif /* HAVE_LONG_DOUBLE */ |
2201 | ||
a243a22f | 2202 | |
54109914 | 2203 | /* The converse: convert the DOUBLEST *FROM to an extended float |
a243a22f SG |
2204 | and store where TO points. Neither FROM nor TO have any alignment |
2205 | restrictions. */ | |
2206 | ||
2207 | void | |
54109914 | 2208 | floatformat_from_doublest (fmt, from, to) |
a243a22f | 2209 | CONST struct floatformat *fmt; |
54109914 | 2210 | DOUBLEST *from; |
a243a22f SG |
2211 | char *to; |
2212 | { | |
54109914 | 2213 | DOUBLEST dfrom; |
a243a22f | 2214 | int exponent; |
54109914 | 2215 | DOUBLEST mant; |
a243a22f SG |
2216 | unsigned int mant_bits, mant_off; |
2217 | int mant_bits_left; | |
2218 | unsigned char *uto = (unsigned char *)to; | |
2219 | ||
2220 | memcpy (&dfrom, from, sizeof (dfrom)); | |
2221 | memset (uto, 0, fmt->totalsize / FLOATFORMAT_CHAR_BIT); | |
2222 | if (dfrom == 0) | |
2223 | return; /* Result is zero */ | |
2224 | if (dfrom != dfrom) | |
2225 | { | |
2226 | /* From is NaN */ | |
2227 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, | |
2228 | fmt->exp_len, fmt->exp_nan); | |
2229 | /* Be sure it's not infinity, but NaN value is irrel */ | |
2230 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->man_start, | |
2231 | 32, 1); | |
2232 | return; | |
2233 | } | |
2234 | ||
2235 | /* If negative, set the sign bit. */ | |
2236 | if (dfrom < 0) | |
2237 | { | |
2238 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->sign_start, 1, 1); | |
2239 | dfrom = -dfrom; | |
2240 | } | |
2241 | ||
2242 | /* How to tell an infinity from an ordinary number? FIXME-someday */ | |
2243 | ||
54109914 | 2244 | #ifdef HAVE_LONG_DOUBLE |
a243a22f | 2245 | mant = ldfrexp (dfrom, &exponent); |
54109914 FF |
2246 | #else |
2247 | mant = frexp (dfrom, &exponent); | |
2248 | #endif | |
2249 | ||
a243a22f SG |
2250 | put_field (uto, fmt->byteorder, fmt->totalsize, fmt->exp_start, fmt->exp_len, |
2251 | exponent + fmt->exp_bias - 1); | |
2252 | ||
2253 | mant_bits_left = fmt->man_len; | |
2254 | mant_off = fmt->man_start; | |
2255 | while (mant_bits_left > 0) | |
2256 | { | |
2257 | unsigned long mant_long; | |
2258 | mant_bits = mant_bits_left < 32 ? mant_bits_left : 32; | |
2259 | ||
2260 | mant *= 4294967296.0; | |
2261 | mant_long = (unsigned long)mant; | |
2262 | mant -= mant_long; | |
2263 | ||
2264 | /* If the integer bit is implicit, then we need to discard it. | |
2265 | If we are discarding a zero, we should be (but are not) creating | |
2266 | a denormalized number which means adjusting the exponent | |
2267 | (I think). */ | |
2268 | if (mant_bits_left == fmt->man_len | |
2269 | && fmt->intbit == floatformat_intbit_no) | |
2270 | { | |
28444bf3 | 2271 | mant_long <<= 1; |
a243a22f SG |
2272 | mant_bits -= 1; |
2273 | } | |
28444bf3 DP |
2274 | |
2275 | if (mant_bits < 32) | |
a243a22f SG |
2276 | { |
2277 | /* The bits we want are in the most significant MANT_BITS bits of | |
2278 | mant_long. Move them to the least significant. */ | |
2279 | mant_long >>= 32 - mant_bits; | |
2280 | } | |
2281 | ||
2282 | put_field (uto, fmt->byteorder, fmt->totalsize, | |
2283 | mant_off, mant_bits, mant_long); | |
2284 | mant_off += mant_bits; | |
2285 | mant_bits_left -= mant_bits; | |
2286 | } | |
2287 | } | |
28444bf3 DP |
2288 | |
2289 | /* temporary storage using circular buffer */ | |
2290 | #define MAXCELLS 16 | |
2291 | #define CELLSIZE 32 | |
2292 | char* | |
2293 | get_cell() | |
2294 | { | |
2295 | static char buf[MAXCELLS][CELLSIZE]; | |
2296 | static int cell=0; | |
2297 | if (++cell>MAXCELLS) cell=0; | |
2298 | return buf[cell]; | |
2299 | } | |
2300 | ||
2301 | /* print routines to handle variable size regs, etc */ | |
2302 | char* | |
2303 | paddr(addr) | |
2304 | t_addr addr; | |
2305 | { | |
2306 | char *paddr_str=get_cell(); | |
2307 | switch (sizeof(t_addr)) | |
2308 | { | |
2309 | case 8: | |
2310 | sprintf(paddr_str,"%08x%08x", | |
2311 | (unsigned long)(addr>>32),(unsigned long)(addr&0xffffffff)); | |
2312 | break; | |
2313 | case 4: | |
2314 | sprintf(paddr_str,"%08x",(unsigned long)addr); | |
2315 | break; | |
2316 | case 2: | |
2317 | sprintf(paddr_str,"%04x",(unsigned short)(addr&0xffff)); | |
2318 | break; | |
2319 | default: | |
2320 | sprintf(paddr_str,"%x",addr); | |
2321 | } | |
2322 | return paddr_str; | |
2323 | } | |
2324 | ||
2325 | char* | |
2326 | preg(reg) | |
2327 | t_reg reg; | |
2328 | { | |
2329 | char *preg_str=get_cell(); | |
2330 | switch (sizeof(t_reg)) | |
2331 | { | |
2332 | case 8: | |
2333 | sprintf(preg_str,"%08x%08x", | |
2334 | (unsigned long)(reg>>32),(unsigned long)(reg&0xffffffff)); | |
2335 | break; | |
2336 | case 4: | |
2337 | sprintf(preg_str,"%08x",(unsigned long)reg); | |
2338 | break; | |
2339 | case 2: | |
2340 | sprintf(preg_str,"%04x",(unsigned short)(reg&0xffff)); | |
2341 | break; | |
2342 | default: | |
2343 | sprintf(preg_str,"%x",reg); | |
2344 | } | |
2345 | return preg_str; | |
2346 | } | |
2347 |