Commit | Line | Data |
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c906108c | 1 | /* General utility routines for GDB, the GNU debugger. |
1bac305b | 2 | |
6aba47ca DJ |
3 | Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
4 | 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | |
46e9880c | 5 | Free Software Foundation, Inc. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c | 21 | |
4e8f7a8b DJ |
22 | #include "defs.h" |
23 | #include "gdb_assert.h" | |
24 | #include <ctype.h> | |
25 | #include "gdb_string.h" | |
26 | #include "event-top.h" | |
60250e8b | 27 | #include "exceptions.h" |
4e8f7a8b | 28 | |
6a83354a AC |
29 | #ifdef TUI |
30 | #include "tui/tui.h" /* For tui_get_command_dimension. */ | |
31 | #endif | |
32 | ||
9d271fd8 AC |
33 | #ifdef __GO32__ |
34 | #include <pc.h> | |
35 | #endif | |
36 | ||
c906108c SS |
37 | /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */ |
38 | #ifdef reg | |
39 | #undef reg | |
40 | #endif | |
41 | ||
042be3a9 | 42 | #include <signal.h> |
c906108c SS |
43 | #include "gdbcmd.h" |
44 | #include "serial.h" | |
45 | #include "bfd.h" | |
46 | #include "target.h" | |
47 | #include "demangle.h" | |
48 | #include "expression.h" | |
49 | #include "language.h" | |
234b45d4 | 50 | #include "charset.h" |
c906108c | 51 | #include "annotate.h" |
303c8ebd | 52 | #include "filenames.h" |
7b90c3f9 | 53 | #include "symfile.h" |
ae5a43e0 | 54 | #include "gdb_obstack.h" |
698ba934 | 55 | #include "top.h" |
c906108c | 56 | |
8731e58e | 57 | #include "inferior.h" /* for signed_pointer_to_address */ |
ac2e2ef7 | 58 | |
2d1b2124 AC |
59 | #include <sys/param.h> /* For MAXPATHLEN */ |
60 | ||
3b78cdbb | 61 | #include "gdb_curses.h" |
020cc13c | 62 | |
dbda9972 | 63 | #include "readline/readline.h" |
c906108c | 64 | |
a3828db0 | 65 | #if !HAVE_DECL_MALLOC |
8dbb1c65 | 66 | extern PTR malloc (); /* OK: PTR */ |
3c37485b | 67 | #endif |
a3828db0 | 68 | #if !HAVE_DECL_REALLOC |
8dbb1c65 | 69 | extern PTR realloc (); /* OK: PTR */ |
0e52036f | 70 | #endif |
a3828db0 | 71 | #if !HAVE_DECL_FREE |
81b8eb80 AC |
72 | extern void free (); |
73 | #endif | |
81b8eb80 | 74 | |
c906108c SS |
75 | /* readline defines this. */ |
76 | #undef savestring | |
77 | ||
9a4105ab | 78 | void (*deprecated_error_begin_hook) (void); |
c906108c SS |
79 | |
80 | /* Prototypes for local functions */ | |
81 | ||
d9fcf2fb | 82 | static void vfprintf_maybe_filtered (struct ui_file *, const char *, |
bee0189a | 83 | va_list, int) ATTR_FORMAT (printf, 2, 0); |
c906108c | 84 | |
d9fcf2fb | 85 | static void fputs_maybe_filtered (const char *, struct ui_file *, int); |
c906108c | 86 | |
e42c9534 AC |
87 | static void do_my_cleanups (struct cleanup **, struct cleanup *); |
88 | ||
a14ed312 | 89 | static void prompt_for_continue (void); |
c906108c | 90 | |
eb0d3137 | 91 | static void set_screen_size (void); |
a14ed312 | 92 | static void set_width (void); |
c906108c | 93 | |
c906108c SS |
94 | /* Chain of cleanup actions established with make_cleanup, |
95 | to be executed if an error happens. */ | |
96 | ||
c5aa993b JM |
97 | static struct cleanup *cleanup_chain; /* cleaned up after a failed command */ |
98 | static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */ | |
99 | static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */ | |
100 | static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */ | |
6426a772 | 101 | /* cleaned up on each error from within an execution command */ |
8731e58e | 102 | static struct cleanup *exec_error_cleanup_chain; |
43ff13b4 JM |
103 | |
104 | /* Pointer to what is left to do for an execution command after the | |
105 | target stops. Used only in asynchronous mode, by targets that | |
106 | support async execution. The finish and until commands use it. So | |
107 | does the target extended-remote command. */ | |
108 | struct continuation *cmd_continuation; | |
c2d11a7d | 109 | struct continuation *intermediate_continuation; |
c906108c SS |
110 | |
111 | /* Nonzero if we have job control. */ | |
112 | ||
113 | int job_control; | |
114 | ||
115 | /* Nonzero means a quit has been requested. */ | |
116 | ||
117 | int quit_flag; | |
118 | ||
119 | /* Nonzero means quit immediately if Control-C is typed now, rather | |
120 | than waiting until QUIT is executed. Be careful in setting this; | |
121 | code which executes with immediate_quit set has to be very careful | |
122 | about being able to deal with being interrupted at any time. It is | |
123 | almost always better to use QUIT; the only exception I can think of | |
124 | is being able to quit out of a system call (using EINTR loses if | |
125 | the SIGINT happens between the previous QUIT and the system call). | |
126 | To immediately quit in the case in which a SIGINT happens between | |
127 | the previous QUIT and setting immediate_quit (desirable anytime we | |
128 | expect to block), call QUIT after setting immediate_quit. */ | |
129 | ||
130 | int immediate_quit; | |
131 | ||
4a351cef AF |
132 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
133 | C++/ObjC form rather than raw. */ | |
c906108c SS |
134 | |
135 | int demangle = 1; | |
920d2a44 AC |
136 | static void |
137 | show_demangle (struct ui_file *file, int from_tty, | |
138 | struct cmd_list_element *c, const char *value) | |
139 | { | |
140 | fprintf_filtered (file, _("\ | |
141 | Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"), | |
142 | value); | |
143 | } | |
c906108c | 144 | |
4a351cef AF |
145 | /* Nonzero means that encoded C++/ObjC names should be printed out in their |
146 | C++/ObjC form even in assembler language displays. If this is set, but | |
c906108c SS |
147 | DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */ |
148 | ||
149 | int asm_demangle = 0; | |
920d2a44 AC |
150 | static void |
151 | show_asm_demangle (struct ui_file *file, int from_tty, | |
152 | struct cmd_list_element *c, const char *value) | |
153 | { | |
154 | fprintf_filtered (file, _("\ | |
155 | Demangling of C++/ObjC names in disassembly listings is %s.\n"), | |
156 | value); | |
157 | } | |
c906108c SS |
158 | |
159 | /* Nonzero means that strings with character values >0x7F should be printed | |
160 | as octal escapes. Zero means just print the value (e.g. it's an | |
161 | international character, and the terminal or window can cope.) */ | |
162 | ||
163 | int sevenbit_strings = 0; | |
920d2a44 AC |
164 | static void |
165 | show_sevenbit_strings (struct ui_file *file, int from_tty, | |
166 | struct cmd_list_element *c, const char *value) | |
167 | { | |
168 | fprintf_filtered (file, _("\ | |
169 | Printing of 8-bit characters in strings as \\nnn is %s.\n"), | |
170 | value); | |
171 | } | |
c906108c SS |
172 | |
173 | /* String to be printed before error messages, if any. */ | |
174 | ||
175 | char *error_pre_print; | |
176 | ||
177 | /* String to be printed before quit messages, if any. */ | |
178 | ||
179 | char *quit_pre_print; | |
180 | ||
181 | /* String to be printed before warning messages, if any. */ | |
182 | ||
183 | char *warning_pre_print = "\nwarning: "; | |
184 | ||
185 | int pagination_enabled = 1; | |
920d2a44 AC |
186 | static void |
187 | show_pagination_enabled (struct ui_file *file, int from_tty, | |
188 | struct cmd_list_element *c, const char *value) | |
189 | { | |
190 | fprintf_filtered (file, _("State of pagination is %s.\n"), value); | |
191 | } | |
192 | ||
c906108c | 193 | \f |
c5aa993b | 194 | |
c906108c SS |
195 | /* Add a new cleanup to the cleanup_chain, |
196 | and return the previous chain pointer | |
197 | to be passed later to do_cleanups or discard_cleanups. | |
198 | Args are FUNCTION to clean up with, and ARG to pass to it. */ | |
199 | ||
200 | struct cleanup * | |
e4005526 | 201 | make_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 202 | { |
c5aa993b | 203 | return make_my_cleanup (&cleanup_chain, function, arg); |
c906108c SS |
204 | } |
205 | ||
206 | struct cleanup * | |
e4005526 | 207 | make_final_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 208 | { |
c5aa993b | 209 | return make_my_cleanup (&final_cleanup_chain, function, arg); |
c906108c | 210 | } |
7a292a7a | 211 | |
c906108c | 212 | struct cleanup * |
e4005526 | 213 | make_run_cleanup (make_cleanup_ftype *function, void *arg) |
c906108c | 214 | { |
c5aa993b | 215 | return make_my_cleanup (&run_cleanup_chain, function, arg); |
c906108c | 216 | } |
7a292a7a | 217 | |
43ff13b4 | 218 | struct cleanup * |
e4005526 | 219 | make_exec_cleanup (make_cleanup_ftype *function, void *arg) |
43ff13b4 | 220 | { |
c5aa993b | 221 | return make_my_cleanup (&exec_cleanup_chain, function, arg); |
43ff13b4 JM |
222 | } |
223 | ||
6426a772 | 224 | struct cleanup * |
e4005526 | 225 | make_exec_error_cleanup (make_cleanup_ftype *function, void *arg) |
6426a772 JM |
226 | { |
227 | return make_my_cleanup (&exec_error_cleanup_chain, function, arg); | |
228 | } | |
229 | ||
7a292a7a | 230 | static void |
fba45db2 | 231 | do_freeargv (void *arg) |
7a292a7a | 232 | { |
c5aa993b | 233 | freeargv ((char **) arg); |
7a292a7a SS |
234 | } |
235 | ||
236 | struct cleanup * | |
fba45db2 | 237 | make_cleanup_freeargv (char **arg) |
7a292a7a SS |
238 | { |
239 | return make_my_cleanup (&cleanup_chain, do_freeargv, arg); | |
240 | } | |
241 | ||
5c65bbb6 AC |
242 | static void |
243 | do_bfd_close_cleanup (void *arg) | |
244 | { | |
245 | bfd_close (arg); | |
246 | } | |
247 | ||
248 | struct cleanup * | |
249 | make_cleanup_bfd_close (bfd *abfd) | |
250 | { | |
251 | return make_cleanup (do_bfd_close_cleanup, abfd); | |
252 | } | |
253 | ||
f5ff8c83 AC |
254 | static void |
255 | do_close_cleanup (void *arg) | |
256 | { | |
f042532c AC |
257 | int *fd = arg; |
258 | close (*fd); | |
259 | xfree (fd); | |
f5ff8c83 AC |
260 | } |
261 | ||
262 | struct cleanup * | |
263 | make_cleanup_close (int fd) | |
264 | { | |
f042532c AC |
265 | int *saved_fd = xmalloc (sizeof (fd)); |
266 | *saved_fd = fd; | |
267 | return make_cleanup (do_close_cleanup, saved_fd); | |
f5ff8c83 AC |
268 | } |
269 | ||
11cf8741 | 270 | static void |
d9fcf2fb | 271 | do_ui_file_delete (void *arg) |
11cf8741 | 272 | { |
d9fcf2fb | 273 | ui_file_delete (arg); |
11cf8741 JM |
274 | } |
275 | ||
276 | struct cleanup * | |
d9fcf2fb | 277 | make_cleanup_ui_file_delete (struct ui_file *arg) |
11cf8741 | 278 | { |
d9fcf2fb | 279 | return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg); |
11cf8741 JM |
280 | } |
281 | ||
7b90c3f9 JB |
282 | static void |
283 | do_free_section_addr_info (void *arg) | |
284 | { | |
285 | free_section_addr_info (arg); | |
286 | } | |
287 | ||
288 | struct cleanup * | |
289 | make_cleanup_free_section_addr_info (struct section_addr_info *addrs) | |
290 | { | |
291 | return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs); | |
292 | } | |
293 | ||
294 | ||
c906108c | 295 | struct cleanup * |
e4005526 AC |
296 | make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function, |
297 | void *arg) | |
c906108c | 298 | { |
52f0bd74 | 299 | struct cleanup *new |
8731e58e | 300 | = (struct cleanup *) xmalloc (sizeof (struct cleanup)); |
52f0bd74 | 301 | struct cleanup *old_chain = *pmy_chain; |
c906108c SS |
302 | |
303 | new->next = *pmy_chain; | |
304 | new->function = function; | |
305 | new->arg = arg; | |
306 | *pmy_chain = new; | |
307 | ||
308 | return old_chain; | |
309 | } | |
310 | ||
311 | /* Discard cleanups and do the actions they describe | |
312 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
313 | ||
314 | void | |
aa1ee363 | 315 | do_cleanups (struct cleanup *old_chain) |
c906108c | 316 | { |
c5aa993b | 317 | do_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
318 | } |
319 | ||
320 | void | |
aa1ee363 | 321 | do_final_cleanups (struct cleanup *old_chain) |
c906108c | 322 | { |
c5aa993b | 323 | do_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
324 | } |
325 | ||
326 | void | |
aa1ee363 | 327 | do_run_cleanups (struct cleanup *old_chain) |
c906108c | 328 | { |
c5aa993b | 329 | do_my_cleanups (&run_cleanup_chain, old_chain); |
c906108c SS |
330 | } |
331 | ||
43ff13b4 | 332 | void |
aa1ee363 | 333 | do_exec_cleanups (struct cleanup *old_chain) |
43ff13b4 | 334 | { |
c5aa993b | 335 | do_my_cleanups (&exec_cleanup_chain, old_chain); |
43ff13b4 JM |
336 | } |
337 | ||
6426a772 | 338 | void |
aa1ee363 | 339 | do_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
340 | { |
341 | do_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
342 | } | |
343 | ||
e42c9534 | 344 | static void |
aa1ee363 AC |
345 | do_my_cleanups (struct cleanup **pmy_chain, |
346 | struct cleanup *old_chain) | |
c906108c | 347 | { |
52f0bd74 | 348 | struct cleanup *ptr; |
c906108c SS |
349 | while ((ptr = *pmy_chain) != old_chain) |
350 | { | |
351 | *pmy_chain = ptr->next; /* Do this first incase recursion */ | |
352 | (*ptr->function) (ptr->arg); | |
b8c9b27d | 353 | xfree (ptr); |
c906108c SS |
354 | } |
355 | } | |
356 | ||
357 | /* Discard cleanups, not doing the actions they describe, | |
358 | until we get back to the point OLD_CHAIN in the cleanup_chain. */ | |
359 | ||
360 | void | |
aa1ee363 | 361 | discard_cleanups (struct cleanup *old_chain) |
c906108c | 362 | { |
c5aa993b | 363 | discard_my_cleanups (&cleanup_chain, old_chain); |
c906108c SS |
364 | } |
365 | ||
366 | void | |
aa1ee363 | 367 | discard_final_cleanups (struct cleanup *old_chain) |
c906108c | 368 | { |
c5aa993b | 369 | discard_my_cleanups (&final_cleanup_chain, old_chain); |
c906108c SS |
370 | } |
371 | ||
6426a772 | 372 | void |
aa1ee363 | 373 | discard_exec_error_cleanups (struct cleanup *old_chain) |
6426a772 JM |
374 | { |
375 | discard_my_cleanups (&exec_error_cleanup_chain, old_chain); | |
376 | } | |
377 | ||
c906108c | 378 | void |
aa1ee363 AC |
379 | discard_my_cleanups (struct cleanup **pmy_chain, |
380 | struct cleanup *old_chain) | |
c906108c | 381 | { |
52f0bd74 | 382 | struct cleanup *ptr; |
c906108c SS |
383 | while ((ptr = *pmy_chain) != old_chain) |
384 | { | |
385 | *pmy_chain = ptr->next; | |
b8c9b27d | 386 | xfree (ptr); |
c906108c SS |
387 | } |
388 | } | |
389 | ||
390 | /* Set the cleanup_chain to 0, and return the old cleanup chain. */ | |
391 | struct cleanup * | |
fba45db2 | 392 | save_cleanups (void) |
c906108c | 393 | { |
c5aa993b | 394 | return save_my_cleanups (&cleanup_chain); |
c906108c SS |
395 | } |
396 | ||
397 | struct cleanup * | |
fba45db2 | 398 | save_final_cleanups (void) |
c906108c | 399 | { |
c5aa993b | 400 | return save_my_cleanups (&final_cleanup_chain); |
c906108c SS |
401 | } |
402 | ||
403 | struct cleanup * | |
fba45db2 | 404 | save_my_cleanups (struct cleanup **pmy_chain) |
c906108c SS |
405 | { |
406 | struct cleanup *old_chain = *pmy_chain; | |
407 | ||
408 | *pmy_chain = 0; | |
409 | return old_chain; | |
410 | } | |
411 | ||
412 | /* Restore the cleanup chain from a previously saved chain. */ | |
413 | void | |
fba45db2 | 414 | restore_cleanups (struct cleanup *chain) |
c906108c | 415 | { |
c5aa993b | 416 | restore_my_cleanups (&cleanup_chain, chain); |
c906108c SS |
417 | } |
418 | ||
419 | void | |
fba45db2 | 420 | restore_final_cleanups (struct cleanup *chain) |
c906108c | 421 | { |
c5aa993b | 422 | restore_my_cleanups (&final_cleanup_chain, chain); |
c906108c SS |
423 | } |
424 | ||
425 | void | |
fba45db2 | 426 | restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain) |
c906108c SS |
427 | { |
428 | *pmy_chain = chain; | |
429 | } | |
430 | ||
431 | /* This function is useful for cleanups. | |
432 | Do | |
433 | ||
c5aa993b JM |
434 | foo = xmalloc (...); |
435 | old_chain = make_cleanup (free_current_contents, &foo); | |
c906108c SS |
436 | |
437 | to arrange to free the object thus allocated. */ | |
438 | ||
439 | void | |
2f9429ae | 440 | free_current_contents (void *ptr) |
c906108c | 441 | { |
2f9429ae | 442 | void **location = ptr; |
e2f9c474 | 443 | if (location == NULL) |
8e65ff28 | 444 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 445 | _("free_current_contents: NULL pointer")); |
2f9429ae | 446 | if (*location != NULL) |
e2f9c474 | 447 | { |
b8c9b27d | 448 | xfree (*location); |
e2f9c474 AC |
449 | *location = NULL; |
450 | } | |
c906108c SS |
451 | } |
452 | ||
453 | /* Provide a known function that does nothing, to use as a base for | |
454 | for a possibly long chain of cleanups. This is useful where we | |
455 | use the cleanup chain for handling normal cleanups as well as dealing | |
456 | with cleanups that need to be done as a result of a call to error(). | |
457 | In such cases, we may not be certain where the first cleanup is, unless | |
458 | we have a do-nothing one to always use as the base. */ | |
459 | ||
c906108c | 460 | void |
e4005526 | 461 | null_cleanup (void *arg) |
c906108c SS |
462 | { |
463 | } | |
464 | ||
74f832da | 465 | /* Add a continuation to the continuation list, the global list |
c2d11a7d | 466 | cmd_continuation. The new continuation will be added at the front.*/ |
43ff13b4 | 467 | void |
74f832da KB |
468 | add_continuation (void (*continuation_hook) (struct continuation_arg *), |
469 | struct continuation_arg *arg_list) | |
43ff13b4 | 470 | { |
c5aa993b | 471 | struct continuation *continuation_ptr; |
43ff13b4 | 472 | |
8731e58e AC |
473 | continuation_ptr = |
474 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c5aa993b JM |
475 | continuation_ptr->continuation_hook = continuation_hook; |
476 | continuation_ptr->arg_list = arg_list; | |
477 | continuation_ptr->next = cmd_continuation; | |
478 | cmd_continuation = continuation_ptr; | |
43ff13b4 JM |
479 | } |
480 | ||
481 | /* Walk down the cmd_continuation list, and execute all the | |
c2d11a7d JM |
482 | continuations. There is a problem though. In some cases new |
483 | continuations may be added while we are in the middle of this | |
484 | loop. If this happens they will be added in the front, and done | |
485 | before we have a chance of exhausting those that were already | |
486 | there. We need to then save the beginning of the list in a pointer | |
487 | and do the continuations from there on, instead of using the | |
0a4a0819 | 488 | global beginning of list as our iteration pointer. */ |
c5aa993b | 489 | void |
fba45db2 | 490 | do_all_continuations (void) |
c2d11a7d JM |
491 | { |
492 | struct continuation *continuation_ptr; | |
493 | struct continuation *saved_continuation; | |
494 | ||
495 | /* Copy the list header into another pointer, and set the global | |
496 | list header to null, so that the global list can change as a side | |
497 | effect of invoking the continuations and the processing of | |
498 | the preexisting continuations will not be affected. */ | |
499 | continuation_ptr = cmd_continuation; | |
500 | cmd_continuation = NULL; | |
501 | ||
0a4a0819 | 502 | /* Work now on the list we have set aside. */ |
c2d11a7d | 503 | while (continuation_ptr) |
8731e58e AC |
504 | { |
505 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
506 | saved_continuation = continuation_ptr; | |
507 | continuation_ptr = continuation_ptr->next; | |
508 | xfree (saved_continuation); | |
509 | } | |
c2d11a7d JM |
510 | } |
511 | ||
512 | /* Walk down the cmd_continuation list, and get rid of all the | |
513 | continuations. */ | |
514 | void | |
fba45db2 | 515 | discard_all_continuations (void) |
43ff13b4 | 516 | { |
c5aa993b | 517 | struct continuation *continuation_ptr; |
43ff13b4 | 518 | |
c5aa993b JM |
519 | while (cmd_continuation) |
520 | { | |
c5aa993b JM |
521 | continuation_ptr = cmd_continuation; |
522 | cmd_continuation = continuation_ptr->next; | |
b8c9b27d | 523 | xfree (continuation_ptr); |
c5aa993b | 524 | } |
43ff13b4 | 525 | } |
c2c6d25f | 526 | |
57e687d9 | 527 | /* Add a continuation to the continuation list, the global list |
0a4a0819 MS |
528 | intermediate_continuation. The new continuation will be added at |
529 | the front. */ | |
c2d11a7d | 530 | void |
74f832da KB |
531 | add_intermediate_continuation (void (*continuation_hook) |
532 | (struct continuation_arg *), | |
533 | struct continuation_arg *arg_list) | |
c2d11a7d JM |
534 | { |
535 | struct continuation *continuation_ptr; | |
536 | ||
8731e58e AC |
537 | continuation_ptr = |
538 | (struct continuation *) xmalloc (sizeof (struct continuation)); | |
c2d11a7d JM |
539 | continuation_ptr->continuation_hook = continuation_hook; |
540 | continuation_ptr->arg_list = arg_list; | |
541 | continuation_ptr->next = intermediate_continuation; | |
542 | intermediate_continuation = continuation_ptr; | |
543 | } | |
544 | ||
545 | /* Walk down the cmd_continuation list, and execute all the | |
546 | continuations. There is a problem though. In some cases new | |
547 | continuations may be added while we are in the middle of this | |
548 | loop. If this happens they will be added in the front, and done | |
549 | before we have a chance of exhausting those that were already | |
550 | there. We need to then save the beginning of the list in a pointer | |
551 | and do the continuations from there on, instead of using the | |
552 | global beginning of list as our iteration pointer.*/ | |
553 | void | |
fba45db2 | 554 | do_all_intermediate_continuations (void) |
c2d11a7d JM |
555 | { |
556 | struct continuation *continuation_ptr; | |
557 | struct continuation *saved_continuation; | |
558 | ||
559 | /* Copy the list header into another pointer, and set the global | |
560 | list header to null, so that the global list can change as a side | |
561 | effect of invoking the continuations and the processing of | |
562 | the preexisting continuations will not be affected. */ | |
563 | continuation_ptr = intermediate_continuation; | |
564 | intermediate_continuation = NULL; | |
565 | ||
0a4a0819 | 566 | /* Work now on the list we have set aside. */ |
c2d11a7d | 567 | while (continuation_ptr) |
8731e58e AC |
568 | { |
569 | (continuation_ptr->continuation_hook) (continuation_ptr->arg_list); | |
570 | saved_continuation = continuation_ptr; | |
571 | continuation_ptr = continuation_ptr->next; | |
572 | xfree (saved_continuation); | |
573 | } | |
c2d11a7d JM |
574 | } |
575 | ||
c2c6d25f JM |
576 | /* Walk down the cmd_continuation list, and get rid of all the |
577 | continuations. */ | |
578 | void | |
fba45db2 | 579 | discard_all_intermediate_continuations (void) |
c2c6d25f JM |
580 | { |
581 | struct continuation *continuation_ptr; | |
582 | ||
c2d11a7d | 583 | while (intermediate_continuation) |
c2c6d25f | 584 | { |
c2d11a7d JM |
585 | continuation_ptr = intermediate_continuation; |
586 | intermediate_continuation = continuation_ptr->next; | |
b8c9b27d | 587 | xfree (continuation_ptr); |
c2c6d25f JM |
588 | } |
589 | } | |
c906108c | 590 | \f |
c5aa993b | 591 | |
8731e58e | 592 | |
f5a96129 AC |
593 | /* Print a warning message. The first argument STRING is the warning |
594 | message, used as an fprintf format string, the second is the | |
595 | va_list of arguments for that string. A warning is unfiltered (not | |
596 | paginated) so that the user does not need to page through each | |
597 | screen full of warnings when there are lots of them. */ | |
c906108c SS |
598 | |
599 | void | |
f5a96129 | 600 | vwarning (const char *string, va_list args) |
c906108c | 601 | { |
9a4105ab AC |
602 | if (deprecated_warning_hook) |
603 | (*deprecated_warning_hook) (string, args); | |
f5a96129 AC |
604 | else |
605 | { | |
606 | target_terminal_ours (); | |
607 | wrap_here (""); /* Force out any buffered output */ | |
608 | gdb_flush (gdb_stdout); | |
609 | if (warning_pre_print) | |
306d9ac5 | 610 | fputs_unfiltered (warning_pre_print, gdb_stderr); |
f5a96129 AC |
611 | vfprintf_unfiltered (gdb_stderr, string, args); |
612 | fprintf_unfiltered (gdb_stderr, "\n"); | |
613 | va_end (args); | |
614 | } | |
c906108c SS |
615 | } |
616 | ||
617 | /* Print a warning message. | |
618 | The first argument STRING is the warning message, used as a fprintf string, | |
619 | and the remaining args are passed as arguments to it. | |
620 | The primary difference between warnings and errors is that a warning | |
621 | does not force the return to command level. */ | |
622 | ||
c906108c | 623 | void |
8731e58e | 624 | warning (const char *string, ...) |
c906108c SS |
625 | { |
626 | va_list args; | |
c906108c | 627 | va_start (args, string); |
f5a96129 AC |
628 | vwarning (string, args); |
629 | va_end (args); | |
c906108c SS |
630 | } |
631 | ||
c906108c SS |
632 | /* Print an error message and return to command level. |
633 | The first argument STRING is the error message, used as a fprintf string, | |
634 | and the remaining args are passed as arguments to it. */ | |
635 | ||
4ce44c66 JM |
636 | NORETURN void |
637 | verror (const char *string, va_list args) | |
638 | { | |
6b1b7650 | 639 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 JM |
640 | } |
641 | ||
c906108c | 642 | NORETURN void |
8731e58e | 643 | error (const char *string, ...) |
c906108c SS |
644 | { |
645 | va_list args; | |
c906108c | 646 | va_start (args, string); |
6b1b7650 | 647 | throw_verror (GENERIC_ERROR, string, args); |
4ce44c66 | 648 | va_end (args); |
c906108c SS |
649 | } |
650 | ||
d75e3c94 JJ |
651 | /* Print an error message and quit. |
652 | The first argument STRING is the error message, used as a fprintf string, | |
653 | and the remaining args are passed as arguments to it. */ | |
654 | ||
655 | NORETURN void | |
656 | vfatal (const char *string, va_list args) | |
657 | { | |
6b1b7650 | 658 | throw_vfatal (string, args); |
d75e3c94 JJ |
659 | } |
660 | ||
661 | NORETURN void | |
662 | fatal (const char *string, ...) | |
663 | { | |
664 | va_list args; | |
665 | va_start (args, string); | |
6b1b7650 | 666 | throw_vfatal (string, args); |
d75e3c94 JJ |
667 | va_end (args); |
668 | } | |
669 | ||
d75e3c94 JJ |
670 | NORETURN void |
671 | error_stream (struct ui_file *stream) | |
2acceee2 | 672 | { |
4ce44c66 | 673 | long len; |
6b1b7650 AC |
674 | char *message = ui_file_xstrdup (stream, &len); |
675 | make_cleanup (xfree, message); | |
8a3fe4f8 | 676 | error (("%s"), message); |
2acceee2 | 677 | } |
c906108c | 678 | |
dec43320 AC |
679 | /* Print a message reporting an internal error/warning. Ask the user |
680 | if they want to continue, dump core, or just exit. Return | |
681 | something to indicate a quit. */ | |
c906108c | 682 | |
dec43320 | 683 | struct internal_problem |
c906108c | 684 | { |
dec43320 AC |
685 | const char *name; |
686 | /* FIXME: cagney/2002-08-15: There should be ``maint set/show'' | |
687 | commands available for controlling these variables. */ | |
688 | enum auto_boolean should_quit; | |
689 | enum auto_boolean should_dump_core; | |
690 | }; | |
691 | ||
692 | /* Report a problem, internal to GDB, to the user. Once the problem | |
693 | has been reported, and assuming GDB didn't quit, the caller can | |
694 | either allow execution to resume or throw an error. */ | |
695 | ||
bee0189a | 696 | static void ATTR_FORMAT (printf, 4, 0) |
dec43320 | 697 | internal_vproblem (struct internal_problem *problem, |
8731e58e | 698 | const char *file, int line, const char *fmt, va_list ap) |
dec43320 | 699 | { |
dec43320 | 700 | static int dejavu; |
375fc983 | 701 | int quit_p; |
7be570e7 | 702 | int dump_core_p; |
714b1282 | 703 | char *reason; |
c906108c | 704 | |
dec43320 | 705 | /* Don't allow infinite error/warning recursion. */ |
714b1282 AC |
706 | { |
707 | static char msg[] = "Recursive internal problem.\n"; | |
708 | switch (dejavu) | |
709 | { | |
710 | case 0: | |
711 | dejavu = 1; | |
712 | break; | |
713 | case 1: | |
714 | dejavu = 2; | |
715 | fputs_unfiltered (msg, gdb_stderr); | |
716 | abort (); /* NOTE: GDB has only three calls to abort(). */ | |
717 | default: | |
718 | dejavu = 3; | |
719 | write (STDERR_FILENO, msg, sizeof (msg)); | |
720 | exit (1); | |
721 | } | |
722 | } | |
c906108c | 723 | |
dec43320 | 724 | /* Try to get the message out and at the start of a new line. */ |
4261bedc | 725 | target_terminal_ours (); |
dec43320 AC |
726 | begin_line (); |
727 | ||
714b1282 AC |
728 | /* Create a string containing the full error/warning message. Need |
729 | to call query with this full string, as otherwize the reason | |
730 | (error/warning) and question become separated. Format using a | |
731 | style similar to a compiler error message. Include extra detail | |
732 | so that the user knows that they are living on the edge. */ | |
733 | { | |
734 | char *msg; | |
e623b504 | 735 | msg = xstrvprintf (fmt, ap); |
b435e160 | 736 | reason = xstrprintf ("\ |
714b1282 AC |
737 | %s:%d: %s: %s\n\ |
738 | A problem internal to GDB has been detected,\n\ | |
739 | further debugging may prove unreliable.", file, line, problem->name, msg); | |
740 | xfree (msg); | |
741 | make_cleanup (xfree, reason); | |
742 | } | |
7be570e7 | 743 | |
dec43320 AC |
744 | switch (problem->should_quit) |
745 | { | |
746 | case AUTO_BOOLEAN_AUTO: | |
747 | /* Default (yes/batch case) is to quit GDB. When in batch mode | |
8731e58e AC |
748 | this lessens the likelhood of GDB going into an infinate |
749 | loop. */ | |
e2e0b3e5 | 750 | quit_p = query (_("%s\nQuit this debugging session? "), reason); |
dec43320 AC |
751 | break; |
752 | case AUTO_BOOLEAN_TRUE: | |
753 | quit_p = 1; | |
754 | break; | |
755 | case AUTO_BOOLEAN_FALSE: | |
756 | quit_p = 0; | |
757 | break; | |
758 | default: | |
e2e0b3e5 | 759 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 AC |
760 | } |
761 | ||
762 | switch (problem->should_dump_core) | |
763 | { | |
764 | case AUTO_BOOLEAN_AUTO: | |
765 | /* Default (yes/batch case) is to dump core. This leaves a GDB | |
8731e58e AC |
766 | `dropping' so that it is easier to see that something went |
767 | wrong in GDB. */ | |
e2e0b3e5 | 768 | dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason); |
dec43320 AC |
769 | break; |
770 | break; | |
771 | case AUTO_BOOLEAN_TRUE: | |
772 | dump_core_p = 1; | |
773 | break; | |
774 | case AUTO_BOOLEAN_FALSE: | |
775 | dump_core_p = 0; | |
776 | break; | |
777 | default: | |
e2e0b3e5 | 778 | internal_error (__FILE__, __LINE__, _("bad switch")); |
dec43320 | 779 | } |
7be570e7 | 780 | |
375fc983 | 781 | if (quit_p) |
7be570e7 JM |
782 | { |
783 | if (dump_core_p) | |
8731e58e | 784 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
375fc983 AC |
785 | else |
786 | exit (1); | |
7be570e7 JM |
787 | } |
788 | else | |
789 | { | |
790 | if (dump_core_p) | |
375fc983 | 791 | { |
9b265ec2 | 792 | #ifdef HAVE_WORKING_FORK |
375fc983 | 793 | if (fork () == 0) |
8731e58e | 794 | abort (); /* NOTE: GDB has only three calls to abort(). */ |
9b265ec2 | 795 | #endif |
375fc983 | 796 | } |
7be570e7 | 797 | } |
96baa820 JM |
798 | |
799 | dejavu = 0; | |
dec43320 AC |
800 | } |
801 | ||
802 | static struct internal_problem internal_error_problem = { | |
803 | "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO | |
804 | }; | |
805 | ||
806 | NORETURN void | |
8731e58e | 807 | internal_verror (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
808 | { |
809 | internal_vproblem (&internal_error_problem, file, line, fmt, ap); | |
315a522e | 810 | deprecated_throw_reason (RETURN_ERROR); |
c906108c SS |
811 | } |
812 | ||
4ce44c66 | 813 | NORETURN void |
8e65ff28 | 814 | internal_error (const char *file, int line, const char *string, ...) |
4ce44c66 JM |
815 | { |
816 | va_list ap; | |
817 | va_start (ap, string); | |
8e65ff28 | 818 | internal_verror (file, line, string, ap); |
4ce44c66 JM |
819 | va_end (ap); |
820 | } | |
821 | ||
dec43320 | 822 | static struct internal_problem internal_warning_problem = { |
d833db3b | 823 | "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO |
dec43320 AC |
824 | }; |
825 | ||
826 | void | |
8731e58e | 827 | internal_vwarning (const char *file, int line, const char *fmt, va_list ap) |
dec43320 AC |
828 | { |
829 | internal_vproblem (&internal_warning_problem, file, line, fmt, ap); | |
830 | } | |
831 | ||
832 | void | |
833 | internal_warning (const char *file, int line, const char *string, ...) | |
834 | { | |
835 | va_list ap; | |
836 | va_start (ap, string); | |
837 | internal_vwarning (file, line, string, ap); | |
838 | va_end (ap); | |
839 | } | |
840 | ||
c906108c SS |
841 | /* Print the system error message for errno, and also mention STRING |
842 | as the file name for which the error was encountered. | |
843 | Then return to command level. */ | |
844 | ||
845 | NORETURN void | |
6972bc8b | 846 | perror_with_name (const char *string) |
c906108c SS |
847 | { |
848 | char *err; | |
849 | char *combined; | |
850 | ||
851 | err = safe_strerror (errno); | |
852 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
853 | strcpy (combined, string); | |
854 | strcat (combined, ": "); | |
855 | strcat (combined, err); | |
856 | ||
857 | /* I understand setting these is a matter of taste. Still, some people | |
858 | may clear errno but not know about bfd_error. Doing this here is not | |
859 | unreasonable. */ | |
860 | bfd_set_error (bfd_error_no_error); | |
861 | errno = 0; | |
862 | ||
8a3fe4f8 | 863 | error (_("%s."), combined); |
c906108c SS |
864 | } |
865 | ||
866 | /* Print the system error message for ERRCODE, and also mention STRING | |
867 | as the file name for which the error was encountered. */ | |
868 | ||
869 | void | |
6972bc8b | 870 | print_sys_errmsg (const char *string, int errcode) |
c906108c SS |
871 | { |
872 | char *err; | |
873 | char *combined; | |
874 | ||
875 | err = safe_strerror (errcode); | |
876 | combined = (char *) alloca (strlen (err) + strlen (string) + 3); | |
877 | strcpy (combined, string); | |
878 | strcat (combined, ": "); | |
879 | strcat (combined, err); | |
880 | ||
881 | /* We want anything which was printed on stdout to come out first, before | |
882 | this message. */ | |
883 | gdb_flush (gdb_stdout); | |
884 | fprintf_unfiltered (gdb_stderr, "%s.\n", combined); | |
885 | } | |
886 | ||
887 | /* Control C eventually causes this to be called, at a convenient time. */ | |
888 | ||
889 | void | |
fba45db2 | 890 | quit (void) |
c906108c | 891 | { |
7be570e7 JM |
892 | #ifdef __MSDOS__ |
893 | /* No steenking SIGINT will ever be coming our way when the | |
894 | program is resumed. Don't lie. */ | |
e06e2353 | 895 | fatal ("Quit"); |
7be570e7 | 896 | #else |
c906108c | 897 | if (job_control |
8731e58e AC |
898 | /* If there is no terminal switching for this target, then we can't |
899 | possibly get screwed by the lack of job control. */ | |
c906108c | 900 | || current_target.to_terminal_ours == NULL) |
e06e2353 | 901 | fatal ("Quit"); |
c906108c | 902 | else |
e06e2353 | 903 | fatal ("Quit (expect signal SIGINT when the program is resumed)"); |
7be570e7 | 904 | #endif |
c906108c SS |
905 | } |
906 | ||
c906108c | 907 | \f |
c906108c SS |
908 | /* Called when a memory allocation fails, with the number of bytes of |
909 | memory requested in SIZE. */ | |
910 | ||
911 | NORETURN void | |
fba45db2 | 912 | nomem (long size) |
c906108c SS |
913 | { |
914 | if (size > 0) | |
915 | { | |
8e65ff28 | 916 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 917 | _("virtual memory exhausted: can't allocate %ld bytes."), |
8731e58e | 918 | size); |
c906108c SS |
919 | } |
920 | else | |
921 | { | |
e2e0b3e5 | 922 | internal_error (__FILE__, __LINE__, _("virtual memory exhausted.")); |
c906108c SS |
923 | } |
924 | } | |
925 | ||
c0e61796 AC |
926 | /* The xmalloc() (libiberty.h) family of memory management routines. |
927 | ||
928 | These are like the ISO-C malloc() family except that they implement | |
929 | consistent semantics and guard against typical memory management | |
7936743b | 930 | problems. */ |
c0e61796 AC |
931 | |
932 | /* NOTE: These are declared using PTR to ensure consistency with | |
933 | "libiberty.h". xfree() is GDB local. */ | |
934 | ||
8dbb1c65 | 935 | PTR /* OK: PTR */ |
c0e61796 AC |
936 | xmalloc (size_t size) |
937 | { | |
7936743b AC |
938 | void *val; |
939 | ||
940 | /* See libiberty/xmalloc.c. This function need's to match that's | |
941 | semantics. It never returns NULL. */ | |
942 | if (size == 0) | |
943 | size = 1; | |
944 | ||
945 | val = malloc (size); /* OK: malloc */ | |
946 | if (val == NULL) | |
947 | nomem (size); | |
948 | ||
949 | return (val); | |
c0e61796 | 950 | } |
c906108c | 951 | |
5b90c7b5 AC |
952 | void * |
953 | xzalloc (size_t size) | |
954 | { | |
955 | return xcalloc (1, size); | |
956 | } | |
957 | ||
8dbb1c65 AC |
958 | PTR /* OK: PTR */ |
959 | xrealloc (PTR ptr, size_t size) /* OK: PTR */ | |
c906108c | 960 | { |
0efffb96 AC |
961 | void *val; |
962 | ||
963 | /* See libiberty/xmalloc.c. This function need's to match that's | |
964 | semantics. It never returns NULL. */ | |
965 | if (size == 0) | |
966 | size = 1; | |
967 | ||
968 | if (ptr != NULL) | |
969 | val = realloc (ptr, size); /* OK: realloc */ | |
970 | else | |
971 | val = malloc (size); /* OK: malloc */ | |
972 | if (val == NULL) | |
973 | nomem (size); | |
974 | ||
975 | return (val); | |
c906108c | 976 | } |
b8c9b27d | 977 | |
8dbb1c65 | 978 | PTR /* OK: PTR */ |
c0e61796 AC |
979 | xcalloc (size_t number, size_t size) |
980 | { | |
aa2ee5f6 AC |
981 | void *mem; |
982 | ||
983 | /* See libiberty/xmalloc.c. This function need's to match that's | |
984 | semantics. It never returns NULL. */ | |
985 | if (number == 0 || size == 0) | |
986 | { | |
987 | number = 1; | |
988 | size = 1; | |
989 | } | |
990 | ||
991 | mem = calloc (number, size); /* OK: xcalloc */ | |
992 | if (mem == NULL) | |
993 | nomem (number * size); | |
994 | ||
995 | return mem; | |
c0e61796 | 996 | } |
b8c9b27d KB |
997 | |
998 | void | |
999 | xfree (void *ptr) | |
1000 | { | |
2dc74dc1 AC |
1001 | if (ptr != NULL) |
1002 | free (ptr); /* OK: free */ | |
b8c9b27d | 1003 | } |
c906108c | 1004 | \f |
c5aa993b | 1005 | |
76995688 AC |
1006 | /* Like asprintf/vasprintf but get an internal_error if the call |
1007 | fails. */ | |
1008 | ||
9ebf4acf AC |
1009 | char * |
1010 | xstrprintf (const char *format, ...) | |
1011 | { | |
1012 | char *ret; | |
1013 | va_list args; | |
1014 | va_start (args, format); | |
e623b504 | 1015 | ret = xstrvprintf (format, args); |
9ebf4acf AC |
1016 | va_end (args); |
1017 | return ret; | |
1018 | } | |
1019 | ||
76995688 AC |
1020 | void |
1021 | xasprintf (char **ret, const char *format, ...) | |
1022 | { | |
1023 | va_list args; | |
1024 | va_start (args, format); | |
e623b504 | 1025 | (*ret) = xstrvprintf (format, args); |
76995688 AC |
1026 | va_end (args); |
1027 | } | |
1028 | ||
1029 | void | |
1030 | xvasprintf (char **ret, const char *format, va_list ap) | |
1031 | { | |
a552edd9 | 1032 | (*ret) = xstrvprintf (format, ap); |
76995688 AC |
1033 | } |
1034 | ||
e623b504 AC |
1035 | char * |
1036 | xstrvprintf (const char *format, va_list ap) | |
1037 | { | |
1038 | char *ret = NULL; | |
1039 | int status = vasprintf (&ret, format, ap); | |
46e9880c DJ |
1040 | /* NULL is returned when there was a memory allocation problem, or |
1041 | any other error (for instance, a bad format string). A negative | |
1042 | status (the printed length) with a non-NULL buffer should never | |
1043 | happen, but just to be sure. */ | |
1044 | if (ret == NULL || status < 0) | |
1045 | internal_error (__FILE__, __LINE__, _("vasprintf call failed")); | |
e623b504 AC |
1046 | return ret; |
1047 | } | |
76995688 | 1048 | |
bde2058d MK |
1049 | int |
1050 | xsnprintf (char *str, size_t size, const char *format, ...) | |
1051 | { | |
1052 | va_list args; | |
1053 | int ret; | |
1054 | ||
1055 | va_start (args, format); | |
1056 | ret = vsnprintf (str, size, format, args); | |
1057 | gdb_assert (ret < size); | |
1058 | va_end (args); | |
1059 | ||
1060 | return ret; | |
1061 | } | |
1062 | ||
c906108c SS |
1063 | /* My replacement for the read system call. |
1064 | Used like `read' but keeps going if `read' returns too soon. */ | |
1065 | ||
1066 | int | |
fba45db2 | 1067 | myread (int desc, char *addr, int len) |
c906108c | 1068 | { |
52f0bd74 | 1069 | int val; |
c906108c SS |
1070 | int orglen = len; |
1071 | ||
1072 | while (len > 0) | |
1073 | { | |
1074 | val = read (desc, addr, len); | |
1075 | if (val < 0) | |
1076 | return val; | |
1077 | if (val == 0) | |
1078 | return orglen - len; | |
1079 | len -= val; | |
1080 | addr += val; | |
1081 | } | |
1082 | return orglen; | |
1083 | } | |
1084 | \f | |
1085 | /* Make a copy of the string at PTR with SIZE characters | |
1086 | (and add a null character at the end in the copy). | |
1087 | Uses malloc to get the space. Returns the address of the copy. */ | |
1088 | ||
1089 | char * | |
5565b556 | 1090 | savestring (const char *ptr, size_t size) |
c906108c | 1091 | { |
52f0bd74 | 1092 | char *p = (char *) xmalloc (size + 1); |
c906108c SS |
1093 | memcpy (p, ptr, size); |
1094 | p[size] = 0; | |
1095 | return p; | |
1096 | } | |
1097 | ||
c906108c | 1098 | void |
aa1ee363 | 1099 | print_spaces (int n, struct ui_file *file) |
c906108c | 1100 | { |
392a587b | 1101 | fputs_unfiltered (n_spaces (n), file); |
c906108c SS |
1102 | } |
1103 | ||
1104 | /* Print a host address. */ | |
1105 | ||
1106 | void | |
ac16bf07 | 1107 | gdb_print_host_address (const void *addr, struct ui_file *stream) |
c906108c SS |
1108 | { |
1109 | ||
1110 | /* We could use the %p conversion specifier to fprintf if we had any | |
1111 | way of knowing whether this host supports it. But the following | |
1112 | should work on the Alpha and on 32 bit machines. */ | |
1113 | ||
c5aa993b | 1114 | fprintf_filtered (stream, "0x%lx", (unsigned long) addr); |
c906108c | 1115 | } |
c906108c | 1116 | \f |
c5aa993b | 1117 | |
981c7f5a | 1118 | /* This function supports the query, nquery, and yquery functions. |
cbdeadca | 1119 | Ask user a y-or-n question and return 0 if answer is no, 1 if |
981c7f5a DJ |
1120 | answer is yes, or default the answer to the specified default |
1121 | (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a | |
1122 | default answer, or '\0' for no default. | |
cbdeadca JJ |
1123 | CTLSTR is the control string and should end in "? ". It should |
1124 | not say how to answer, because we do that. | |
1125 | ARGS are the arguments passed along with the CTLSTR argument to | |
1126 | printf. */ | |
1127 | ||
bee0189a | 1128 | static int ATTR_FORMAT (printf, 1, 0) |
cbdeadca JJ |
1129 | defaulted_query (const char *ctlstr, const char defchar, va_list args) |
1130 | { | |
1131 | int answer; | |
1132 | int ans2; | |
1133 | int retval; | |
1134 | int def_value; | |
1135 | char def_answer, not_def_answer; | |
981c7f5a | 1136 | char *y_string, *n_string, *question; |
cbdeadca JJ |
1137 | |
1138 | /* Set up according to which answer is the default. */ | |
981c7f5a DJ |
1139 | if (defchar == '\0') |
1140 | { | |
1141 | def_value = 1; | |
1142 | def_answer = 'Y'; | |
1143 | not_def_answer = 'N'; | |
1144 | y_string = "y"; | |
1145 | n_string = "n"; | |
1146 | } | |
1147 | else if (defchar == 'y') | |
cbdeadca JJ |
1148 | { |
1149 | def_value = 1; | |
1150 | def_answer = 'Y'; | |
1151 | not_def_answer = 'N'; | |
1152 | y_string = "[y]"; | |
1153 | n_string = "n"; | |
1154 | } | |
1155 | else | |
1156 | { | |
1157 | def_value = 0; | |
1158 | def_answer = 'N'; | |
1159 | not_def_answer = 'Y'; | |
1160 | y_string = "y"; | |
1161 | n_string = "[n]"; | |
1162 | } | |
1163 | ||
981c7f5a DJ |
1164 | /* Automatically answer the default value if the user did not want |
1165 | prompts. */ | |
1166 | if (! caution) | |
1167 | return def_value; | |
1168 | ||
1169 | /* If input isn't coming from the user directly, just say what | |
1170 | question we're asking, and then answer "yes" automatically. This | |
1171 | way, important error messages don't get lost when talking to GDB | |
1172 | over a pipe. */ | |
1173 | if (! input_from_terminal_p ()) | |
1174 | { | |
1175 | wrap_here (""); | |
1176 | vfprintf_filtered (gdb_stdout, ctlstr, args); | |
1177 | ||
1178 | printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"), | |
1179 | y_string, n_string, def_answer); | |
1180 | gdb_flush (gdb_stdout); | |
1181 | ||
1182 | return def_value; | |
1183 | } | |
1184 | ||
698ba934 DJ |
1185 | /* Automatically answer the default value if input is not from the user |
1186 | directly, or if the user did not want prompts. */ | |
1187 | if (!input_from_terminal_p () || !caution) | |
1188 | return def_value; | |
1189 | ||
9a4105ab | 1190 | if (deprecated_query_hook) |
cbdeadca | 1191 | { |
9a4105ab | 1192 | return deprecated_query_hook (ctlstr, args); |
cbdeadca JJ |
1193 | } |
1194 | ||
981c7f5a DJ |
1195 | /* Format the question outside of the loop, to avoid reusing args. */ |
1196 | question = xstrvprintf (ctlstr, args); | |
1197 | ||
cbdeadca JJ |
1198 | while (1) |
1199 | { | |
1200 | wrap_here (""); /* Flush any buffered output */ | |
1201 | gdb_flush (gdb_stdout); | |
1202 | ||
1203 | if (annotation_level > 1) | |
a3f17187 | 1204 | printf_filtered (("\n\032\032pre-query\n")); |
cbdeadca | 1205 | |
981c7f5a | 1206 | fputs_filtered (question, gdb_stdout); |
a3f17187 | 1207 | printf_filtered (_("(%s or %s) "), y_string, n_string); |
cbdeadca JJ |
1208 | |
1209 | if (annotation_level > 1) | |
a3f17187 | 1210 | printf_filtered (("\n\032\032query\n")); |
cbdeadca JJ |
1211 | |
1212 | wrap_here (""); | |
1213 | gdb_flush (gdb_stdout); | |
1214 | ||
1215 | answer = fgetc (stdin); | |
1216 | clearerr (stdin); /* in case of C-d */ | |
1217 | if (answer == EOF) /* C-d */ | |
1218 | { | |
fa3fd85b | 1219 | printf_filtered ("EOF [assumed %c]\n", def_answer); |
cbdeadca JJ |
1220 | retval = def_value; |
1221 | break; | |
1222 | } | |
1223 | /* Eat rest of input line, to EOF or newline */ | |
1224 | if (answer != '\n') | |
1225 | do | |
1226 | { | |
1227 | ans2 = fgetc (stdin); | |
1228 | clearerr (stdin); | |
1229 | } | |
1230 | while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); | |
1231 | ||
1232 | if (answer >= 'a') | |
1233 | answer -= 040; | |
1234 | /* Check answer. For the non-default, the user must specify | |
1235 | the non-default explicitly. */ | |
1236 | if (answer == not_def_answer) | |
1237 | { | |
1238 | retval = !def_value; | |
1239 | break; | |
1240 | } | |
981c7f5a DJ |
1241 | /* Otherwise, if a default was specified, the user may either |
1242 | specify the required input or have it default by entering | |
1243 | nothing. */ | |
1244 | if (answer == def_answer | |
1245 | || (defchar != '\0' && | |
1246 | (answer == '\n' || answer == '\r' || answer == EOF))) | |
cbdeadca JJ |
1247 | { |
1248 | retval = def_value; | |
1249 | break; | |
1250 | } | |
1251 | /* Invalid entries are not defaulted and require another selection. */ | |
a3f17187 | 1252 | printf_filtered (_("Please answer %s or %s.\n"), |
cbdeadca JJ |
1253 | y_string, n_string); |
1254 | } | |
1255 | ||
981c7f5a | 1256 | xfree (question); |
cbdeadca | 1257 | if (annotation_level > 1) |
a3f17187 | 1258 | printf_filtered (("\n\032\032post-query\n")); |
cbdeadca JJ |
1259 | return retval; |
1260 | } | |
1261 | \f | |
1262 | ||
1263 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1264 | answer is yes, or 0 if answer is defaulted. | |
1265 | Takes three args which are given to printf to print the question. | |
1266 | The first, a control string, should end in "? ". | |
1267 | It should not say how to answer, because we do that. */ | |
1268 | ||
1269 | int | |
1270 | nquery (const char *ctlstr, ...) | |
1271 | { | |
1272 | va_list args; | |
1273 | ||
1274 | va_start (args, ctlstr); | |
1275 | return defaulted_query (ctlstr, 'n', args); | |
1276 | va_end (args); | |
1277 | } | |
1278 | ||
1279 | /* Ask user a y-or-n question and return 0 if answer is no, 1 if | |
1280 | answer is yes, or 1 if answer is defaulted. | |
1281 | Takes three args which are given to printf to print the question. | |
1282 | The first, a control string, should end in "? ". | |
1283 | It should not say how to answer, because we do that. */ | |
1284 | ||
1285 | int | |
1286 | yquery (const char *ctlstr, ...) | |
1287 | { | |
1288 | va_list args; | |
1289 | ||
1290 | va_start (args, ctlstr); | |
1291 | return defaulted_query (ctlstr, 'y', args); | |
1292 | va_end (args); | |
1293 | } | |
1294 | ||
981c7f5a DJ |
1295 | /* Ask user a y-or-n question and return 1 iff answer is yes. |
1296 | Takes three args which are given to printf to print the question. | |
1297 | The first, a control string, should end in "? ". | |
1298 | It should not say how to answer, because we do that. */ | |
1299 | ||
1300 | int | |
1301 | query (const char *ctlstr, ...) | |
1302 | { | |
1303 | va_list args; | |
1304 | ||
1305 | va_start (args, ctlstr); | |
1306 | return defaulted_query (ctlstr, '\0', args); | |
1307 | va_end (args); | |
1308 | } | |
1309 | ||
234b45d4 KB |
1310 | /* Print an error message saying that we couldn't make sense of a |
1311 | \^mumble sequence in a string or character constant. START and END | |
1312 | indicate a substring of some larger string that contains the | |
1313 | erroneous backslash sequence, missing the initial backslash. */ | |
1314 | static NORETURN int | |
1315 | no_control_char_error (const char *start, const char *end) | |
1316 | { | |
1317 | int len = end - start; | |
1318 | char *copy = alloca (end - start + 1); | |
1319 | ||
1320 | memcpy (copy, start, len); | |
1321 | copy[len] = '\0'; | |
1322 | ||
8a3fe4f8 | 1323 | error (_("There is no control character `\\%s' in the `%s' character set."), |
8731e58e | 1324 | copy, target_charset ()); |
234b45d4 KB |
1325 | } |
1326 | ||
c906108c SS |
1327 | /* Parse a C escape sequence. STRING_PTR points to a variable |
1328 | containing a pointer to the string to parse. That pointer | |
1329 | should point to the character after the \. That pointer | |
1330 | is updated past the characters we use. The value of the | |
1331 | escape sequence is returned. | |
1332 | ||
1333 | A negative value means the sequence \ newline was seen, | |
1334 | which is supposed to be equivalent to nothing at all. | |
1335 | ||
1336 | If \ is followed by a null character, we return a negative | |
1337 | value and leave the string pointer pointing at the null character. | |
1338 | ||
1339 | If \ is followed by 000, we return 0 and leave the string pointer | |
1340 | after the zeros. A value of 0 does not mean end of string. */ | |
1341 | ||
1342 | int | |
fba45db2 | 1343 | parse_escape (char **string_ptr) |
c906108c | 1344 | { |
234b45d4 | 1345 | int target_char; |
52f0bd74 | 1346 | int c = *(*string_ptr)++; |
234b45d4 KB |
1347 | if (c_parse_backslash (c, &target_char)) |
1348 | return target_char; | |
8731e58e AC |
1349 | else |
1350 | switch (c) | |
234b45d4 | 1351 | { |
8731e58e AC |
1352 | case '\n': |
1353 | return -2; | |
1354 | case 0: | |
1355 | (*string_ptr)--; | |
1356 | return 0; | |
1357 | case '^': | |
1358 | { | |
1359 | /* Remember where this escape sequence started, for reporting | |
1360 | errors. */ | |
1361 | char *sequence_start_pos = *string_ptr - 1; | |
234b45d4 | 1362 | |
8731e58e AC |
1363 | c = *(*string_ptr)++; |
1364 | ||
1365 | if (c == '?') | |
1366 | { | |
1367 | /* XXXCHARSET: What is `delete' in the host character set? */ | |
1368 | c = 0177; | |
1369 | ||
1370 | if (!host_char_to_target (c, &target_char)) | |
8a3fe4f8 AC |
1371 | error (_("There is no character corresponding to `Delete' " |
1372 | "in the target character set `%s'."), host_charset ()); | |
8731e58e AC |
1373 | |
1374 | return target_char; | |
1375 | } | |
1376 | else if (c == '\\') | |
1377 | target_char = parse_escape (string_ptr); | |
1378 | else | |
1379 | { | |
1380 | if (!host_char_to_target (c, &target_char)) | |
1381 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1382 | } | |
1383 | ||
1384 | /* Now target_char is something like `c', and we want to find | |
1385 | its control-character equivalent. */ | |
1386 | if (!target_char_to_control_char (target_char, &target_char)) | |
1387 | no_control_char_error (sequence_start_pos, *string_ptr); | |
1388 | ||
1389 | return target_char; | |
1390 | } | |
1391 | ||
1392 | /* XXXCHARSET: we need to use isdigit and value-of-digit | |
1393 | methods of the host character set here. */ | |
1394 | ||
1395 | case '0': | |
1396 | case '1': | |
1397 | case '2': | |
1398 | case '3': | |
1399 | case '4': | |
1400 | case '5': | |
1401 | case '6': | |
1402 | case '7': | |
1403 | { | |
aa1ee363 AC |
1404 | int i = c - '0'; |
1405 | int count = 0; | |
8731e58e AC |
1406 | while (++count < 3) |
1407 | { | |
5cb316ef AC |
1408 | c = (**string_ptr); |
1409 | if (c >= '0' && c <= '7') | |
8731e58e | 1410 | { |
5cb316ef | 1411 | (*string_ptr)++; |
8731e58e AC |
1412 | i *= 8; |
1413 | i += c - '0'; | |
1414 | } | |
1415 | else | |
1416 | { | |
8731e58e AC |
1417 | break; |
1418 | } | |
1419 | } | |
1420 | return i; | |
1421 | } | |
1422 | default: | |
1423 | if (!host_char_to_target (c, &target_char)) | |
1424 | error | |
1425 | ("The escape sequence `\%c' is equivalent to plain `%c', which" | |
1426 | " has no equivalent\n" "in the `%s' character set.", c, c, | |
1427 | target_charset ()); | |
1428 | return target_char; | |
c906108c | 1429 | } |
c906108c SS |
1430 | } |
1431 | \f | |
1432 | /* Print the character C on STREAM as part of the contents of a literal | |
1433 | string whose delimiter is QUOTER. Note that this routine should only | |
1434 | be call for printing things which are independent of the language | |
1435 | of the program being debugged. */ | |
1436 | ||
43e526b9 | 1437 | static void |
74f832da | 1438 | printchar (int c, void (*do_fputs) (const char *, struct ui_file *), |
bee0189a DJ |
1439 | void (*do_fprintf) (struct ui_file *, const char *, ...) |
1440 | ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter) | |
c906108c SS |
1441 | { |
1442 | ||
1443 | c &= 0xFF; /* Avoid sign bit follies */ | |
1444 | ||
c5aa993b JM |
1445 | if (c < 0x20 || /* Low control chars */ |
1446 | (c >= 0x7F && c < 0xA0) || /* DEL, High controls */ | |
1447 | (sevenbit_strings && c >= 0x80)) | |
1448 | { /* high order bit set */ | |
1449 | switch (c) | |
1450 | { | |
1451 | case '\n': | |
43e526b9 | 1452 | do_fputs ("\\n", stream); |
c5aa993b JM |
1453 | break; |
1454 | case '\b': | |
43e526b9 | 1455 | do_fputs ("\\b", stream); |
c5aa993b JM |
1456 | break; |
1457 | case '\t': | |
43e526b9 | 1458 | do_fputs ("\\t", stream); |
c5aa993b JM |
1459 | break; |
1460 | case '\f': | |
43e526b9 | 1461 | do_fputs ("\\f", stream); |
c5aa993b JM |
1462 | break; |
1463 | case '\r': | |
43e526b9 | 1464 | do_fputs ("\\r", stream); |
c5aa993b JM |
1465 | break; |
1466 | case '\033': | |
43e526b9 | 1467 | do_fputs ("\\e", stream); |
c5aa993b JM |
1468 | break; |
1469 | case '\007': | |
43e526b9 | 1470 | do_fputs ("\\a", stream); |
c5aa993b JM |
1471 | break; |
1472 | default: | |
43e526b9 | 1473 | do_fprintf (stream, "\\%.3o", (unsigned int) c); |
c5aa993b JM |
1474 | break; |
1475 | } | |
1476 | } | |
1477 | else | |
1478 | { | |
1479 | if (c == '\\' || c == quoter) | |
43e526b9 JM |
1480 | do_fputs ("\\", stream); |
1481 | do_fprintf (stream, "%c", c); | |
c5aa993b | 1482 | } |
c906108c | 1483 | } |
43e526b9 JM |
1484 | |
1485 | /* Print the character C on STREAM as part of the contents of a | |
1486 | literal string whose delimiter is QUOTER. Note that these routines | |
1487 | should only be call for printing things which are independent of | |
1488 | the language of the program being debugged. */ | |
1489 | ||
1490 | void | |
fba45db2 | 1491 | fputstr_filtered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1492 | { |
1493 | while (*str) | |
1494 | printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter); | |
1495 | } | |
1496 | ||
1497 | void | |
fba45db2 | 1498 | fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream) |
43e526b9 JM |
1499 | { |
1500 | while (*str) | |
1501 | printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1502 | } | |
1503 | ||
0876f84a DJ |
1504 | void |
1505 | fputstrn_filtered (const char *str, int n, int quoter, | |
1506 | struct ui_file *stream) | |
1507 | { | |
1508 | int i; | |
1509 | for (i = 0; i < n; i++) | |
1510 | printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter); | |
1511 | } | |
1512 | ||
43e526b9 | 1513 | void |
8731e58e AC |
1514 | fputstrn_unfiltered (const char *str, int n, int quoter, |
1515 | struct ui_file *stream) | |
43e526b9 JM |
1516 | { |
1517 | int i; | |
1518 | for (i = 0; i < n; i++) | |
1519 | printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter); | |
1520 | } | |
c906108c | 1521 | \f |
c5aa993b | 1522 | |
c906108c SS |
1523 | /* Number of lines per page or UINT_MAX if paging is disabled. */ |
1524 | static unsigned int lines_per_page; | |
920d2a44 AC |
1525 | static void |
1526 | show_lines_per_page (struct ui_file *file, int from_tty, | |
1527 | struct cmd_list_element *c, const char *value) | |
1528 | { | |
1529 | fprintf_filtered (file, _("\ | |
1530 | Number of lines gdb thinks are in a page is %s.\n"), | |
1531 | value); | |
1532 | } | |
eb0d3137 | 1533 | |
cbfbd72a | 1534 | /* Number of chars per line or UINT_MAX if line folding is disabled. */ |
c906108c | 1535 | static unsigned int chars_per_line; |
920d2a44 AC |
1536 | static void |
1537 | show_chars_per_line (struct ui_file *file, int from_tty, | |
1538 | struct cmd_list_element *c, const char *value) | |
1539 | { | |
1540 | fprintf_filtered (file, _("\ | |
1541 | Number of characters gdb thinks are in a line is %s.\n"), | |
1542 | value); | |
1543 | } | |
eb0d3137 | 1544 | |
c906108c SS |
1545 | /* Current count of lines printed on this page, chars on this line. */ |
1546 | static unsigned int lines_printed, chars_printed; | |
1547 | ||
1548 | /* Buffer and start column of buffered text, for doing smarter word- | |
1549 | wrapping. When someone calls wrap_here(), we start buffering output | |
1550 | that comes through fputs_filtered(). If we see a newline, we just | |
1551 | spit it out and forget about the wrap_here(). If we see another | |
1552 | wrap_here(), we spit it out and remember the newer one. If we see | |
1553 | the end of the line, we spit out a newline, the indent, and then | |
1554 | the buffered output. */ | |
1555 | ||
1556 | /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which | |
1557 | are waiting to be output (they have already been counted in chars_printed). | |
1558 | When wrap_buffer[0] is null, the buffer is empty. */ | |
1559 | static char *wrap_buffer; | |
1560 | ||
1561 | /* Pointer in wrap_buffer to the next character to fill. */ | |
1562 | static char *wrap_pointer; | |
1563 | ||
1564 | /* String to indent by if the wrap occurs. Must not be NULL if wrap_column | |
1565 | is non-zero. */ | |
1566 | static char *wrap_indent; | |
1567 | ||
1568 | /* Column number on the screen where wrap_buffer begins, or 0 if wrapping | |
1569 | is not in effect. */ | |
1570 | static int wrap_column; | |
c906108c | 1571 | \f |
c5aa993b | 1572 | |
eb0d3137 MK |
1573 | /* Inialize the number of lines per page and chars per line. */ |
1574 | ||
c906108c | 1575 | void |
fba45db2 | 1576 | init_page_info (void) |
c906108c SS |
1577 | { |
1578 | #if defined(TUI) | |
5ecb1806 | 1579 | if (!tui_get_command_dimension (&chars_per_line, &lines_per_page)) |
c906108c SS |
1580 | #endif |
1581 | { | |
eb0d3137 | 1582 | int rows, cols; |
c906108c | 1583 | |
ec145965 EZ |
1584 | #if defined(__GO32__) |
1585 | rows = ScreenRows (); | |
1586 | cols = ScreenCols (); | |
1587 | lines_per_page = rows; | |
1588 | chars_per_line = cols; | |
1589 | #else | |
eb0d3137 MK |
1590 | /* Make sure Readline has initialized its terminal settings. */ |
1591 | rl_reset_terminal (NULL); | |
c906108c | 1592 | |
eb0d3137 MK |
1593 | /* Get the screen size from Readline. */ |
1594 | rl_get_screen_size (&rows, &cols); | |
1595 | lines_per_page = rows; | |
1596 | chars_per_line = cols; | |
c906108c | 1597 | |
eb0d3137 MK |
1598 | /* Readline should have fetched the termcap entry for us. */ |
1599 | if (tgetnum ("li") < 0 || getenv ("EMACS")) | |
1600 | { | |
1601 | /* The number of lines per page is not mentioned in the | |
1602 | terminal description. This probably means that paging is | |
1603 | not useful (e.g. emacs shell window), so disable paging. */ | |
1604 | lines_per_page = UINT_MAX; | |
1605 | } | |
c906108c | 1606 | |
eb0d3137 | 1607 | /* FIXME: Get rid of this junk. */ |
c906108c | 1608 | #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER) |
c906108c SS |
1609 | SIGWINCH_HANDLER (SIGWINCH); |
1610 | #endif | |
eb0d3137 | 1611 | |
c906108c | 1612 | /* If the output is not a terminal, don't paginate it. */ |
d9fcf2fb | 1613 | if (!ui_file_isatty (gdb_stdout)) |
c5aa993b | 1614 | lines_per_page = UINT_MAX; |
eb0d3137 | 1615 | #endif |
ec145965 | 1616 | } |
eb0d3137 MK |
1617 | |
1618 | set_screen_size (); | |
c5aa993b | 1619 | set_width (); |
c906108c SS |
1620 | } |
1621 | ||
eb0d3137 MK |
1622 | /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */ |
1623 | ||
1624 | static void | |
1625 | set_screen_size (void) | |
1626 | { | |
1627 | int rows = lines_per_page; | |
1628 | int cols = chars_per_line; | |
1629 | ||
1630 | if (rows <= 0) | |
1631 | rows = INT_MAX; | |
1632 | ||
1633 | if (cols <= 0) | |
0caa462c | 1634 | cols = INT_MAX; |
eb0d3137 MK |
1635 | |
1636 | /* Update Readline's idea of the terminal size. */ | |
1637 | rl_set_screen_size (rows, cols); | |
1638 | } | |
1639 | ||
1640 | /* Reinitialize WRAP_BUFFER according to the current value of | |
1641 | CHARS_PER_LINE. */ | |
1642 | ||
c906108c | 1643 | static void |
fba45db2 | 1644 | set_width (void) |
c906108c SS |
1645 | { |
1646 | if (chars_per_line == 0) | |
c5aa993b | 1647 | init_page_info (); |
c906108c SS |
1648 | |
1649 | if (!wrap_buffer) | |
1650 | { | |
1651 | wrap_buffer = (char *) xmalloc (chars_per_line + 2); | |
1652 | wrap_buffer[0] = '\0'; | |
1653 | } | |
1654 | else | |
1655 | wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2); | |
eb0d3137 | 1656 | wrap_pointer = wrap_buffer; /* Start it at the beginning. */ |
c906108c SS |
1657 | } |
1658 | ||
c5aa993b | 1659 | static void |
fba45db2 | 1660 | set_width_command (char *args, int from_tty, struct cmd_list_element *c) |
c906108c | 1661 | { |
eb0d3137 | 1662 | set_screen_size (); |
c906108c SS |
1663 | set_width (); |
1664 | } | |
1665 | ||
eb0d3137 MK |
1666 | static void |
1667 | set_height_command (char *args, int from_tty, struct cmd_list_element *c) | |
1668 | { | |
1669 | set_screen_size (); | |
1670 | } | |
1671 | ||
c906108c SS |
1672 | /* Wait, so the user can read what's on the screen. Prompt the user |
1673 | to continue by pressing RETURN. */ | |
1674 | ||
1675 | static void | |
fba45db2 | 1676 | prompt_for_continue (void) |
c906108c SS |
1677 | { |
1678 | char *ignore; | |
1679 | char cont_prompt[120]; | |
1680 | ||
1681 | if (annotation_level > 1) | |
a3f17187 | 1682 | printf_unfiltered (("\n\032\032pre-prompt-for-continue\n")); |
c906108c SS |
1683 | |
1684 | strcpy (cont_prompt, | |
1685 | "---Type <return> to continue, or q <return> to quit---"); | |
1686 | if (annotation_level > 1) | |
1687 | strcat (cont_prompt, "\n\032\032prompt-for-continue\n"); | |
1688 | ||
1689 | /* We must do this *before* we call gdb_readline, else it will eventually | |
1690 | call us -- thinking that we're trying to print beyond the end of the | |
1691 | screen. */ | |
1692 | reinitialize_more_filter (); | |
1693 | ||
1694 | immediate_quit++; | |
1695 | /* On a real operating system, the user can quit with SIGINT. | |
1696 | But not on GO32. | |
1697 | ||
1698 | 'q' is provided on all systems so users don't have to change habits | |
1699 | from system to system, and because telling them what to do in | |
1700 | the prompt is more user-friendly than expecting them to think of | |
1701 | SIGINT. */ | |
1702 | /* Call readline, not gdb_readline, because GO32 readline handles control-C | |
1703 | whereas control-C to gdb_readline will cause the user to get dumped | |
1704 | out to DOS. */ | |
b4f5539f | 1705 | ignore = gdb_readline_wrapper (cont_prompt); |
c906108c SS |
1706 | |
1707 | if (annotation_level > 1) | |
a3f17187 | 1708 | printf_unfiltered (("\n\032\032post-prompt-for-continue\n")); |
c906108c SS |
1709 | |
1710 | if (ignore) | |
1711 | { | |
1712 | char *p = ignore; | |
1713 | while (*p == ' ' || *p == '\t') | |
1714 | ++p; | |
1715 | if (p[0] == 'q') | |
362646f5 | 1716 | async_request_quit (0); |
b8c9b27d | 1717 | xfree (ignore); |
c906108c SS |
1718 | } |
1719 | immediate_quit--; | |
1720 | ||
1721 | /* Now we have to do this again, so that GDB will know that it doesn't | |
1722 | need to save the ---Type <return>--- line at the top of the screen. */ | |
1723 | reinitialize_more_filter (); | |
1724 | ||
1725 | dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */ | |
1726 | } | |
1727 | ||
1728 | /* Reinitialize filter; ie. tell it to reset to original values. */ | |
1729 | ||
1730 | void | |
fba45db2 | 1731 | reinitialize_more_filter (void) |
c906108c SS |
1732 | { |
1733 | lines_printed = 0; | |
1734 | chars_printed = 0; | |
1735 | } | |
1736 | ||
1737 | /* Indicate that if the next sequence of characters overflows the line, | |
1738 | a newline should be inserted here rather than when it hits the end. | |
1739 | If INDENT is non-null, it is a string to be printed to indent the | |
1740 | wrapped part on the next line. INDENT must remain accessible until | |
1741 | the next call to wrap_here() or until a newline is printed through | |
1742 | fputs_filtered(). | |
1743 | ||
1744 | If the line is already overfull, we immediately print a newline and | |
1745 | the indentation, and disable further wrapping. | |
1746 | ||
1747 | If we don't know the width of lines, but we know the page height, | |
1748 | we must not wrap words, but should still keep track of newlines | |
1749 | that were explicitly printed. | |
1750 | ||
1751 | INDENT should not contain tabs, as that will mess up the char count | |
1752 | on the next line. FIXME. | |
1753 | ||
1754 | This routine is guaranteed to force out any output which has been | |
1755 | squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be | |
1756 | used to force out output from the wrap_buffer. */ | |
1757 | ||
1758 | void | |
fba45db2 | 1759 | wrap_here (char *indent) |
c906108c SS |
1760 | { |
1761 | /* This should have been allocated, but be paranoid anyway. */ | |
1762 | if (!wrap_buffer) | |
e2e0b3e5 | 1763 | internal_error (__FILE__, __LINE__, _("failed internal consistency check")); |
c906108c SS |
1764 | |
1765 | if (wrap_buffer[0]) | |
1766 | { | |
1767 | *wrap_pointer = '\0'; | |
1768 | fputs_unfiltered (wrap_buffer, gdb_stdout); | |
1769 | } | |
1770 | wrap_pointer = wrap_buffer; | |
1771 | wrap_buffer[0] = '\0'; | |
c5aa993b | 1772 | if (chars_per_line == UINT_MAX) /* No line overflow checking */ |
c906108c SS |
1773 | { |
1774 | wrap_column = 0; | |
1775 | } | |
1776 | else if (chars_printed >= chars_per_line) | |
1777 | { | |
1778 | puts_filtered ("\n"); | |
1779 | if (indent != NULL) | |
1780 | puts_filtered (indent); | |
1781 | wrap_column = 0; | |
1782 | } | |
1783 | else | |
1784 | { | |
1785 | wrap_column = chars_printed; | |
1786 | if (indent == NULL) | |
1787 | wrap_indent = ""; | |
1788 | else | |
1789 | wrap_indent = indent; | |
1790 | } | |
1791 | } | |
1792 | ||
4a351cef AF |
1793 | /* Print input string to gdb_stdout, filtered, with wrap, |
1794 | arranging strings in columns of n chars. String can be | |
1795 | right or left justified in the column. Never prints | |
1796 | trailing spaces. String should never be longer than | |
1797 | width. FIXME: this could be useful for the EXAMINE | |
1798 | command, which currently doesn't tabulate very well */ | |
1799 | ||
1800 | void | |
1801 | puts_filtered_tabular (char *string, int width, int right) | |
1802 | { | |
1803 | int spaces = 0; | |
1804 | int stringlen; | |
1805 | char *spacebuf; | |
1806 | ||
1807 | gdb_assert (chars_per_line > 0); | |
1808 | if (chars_per_line == UINT_MAX) | |
1809 | { | |
1810 | fputs_filtered (string, gdb_stdout); | |
1811 | fputs_filtered ("\n", gdb_stdout); | |
1812 | return; | |
1813 | } | |
1814 | ||
1815 | if (((chars_printed - 1) / width + 2) * width >= chars_per_line) | |
1816 | fputs_filtered ("\n", gdb_stdout); | |
1817 | ||
1818 | if (width >= chars_per_line) | |
1819 | width = chars_per_line - 1; | |
1820 | ||
1821 | stringlen = strlen (string); | |
1822 | ||
1823 | if (chars_printed > 0) | |
1824 | spaces = width - (chars_printed - 1) % width - 1; | |
1825 | if (right) | |
1826 | spaces += width - stringlen; | |
1827 | ||
1828 | spacebuf = alloca (spaces + 1); | |
1829 | spacebuf[spaces] = '\0'; | |
1830 | while (spaces--) | |
1831 | spacebuf[spaces] = ' '; | |
1832 | ||
1833 | fputs_filtered (spacebuf, gdb_stdout); | |
1834 | fputs_filtered (string, gdb_stdout); | |
1835 | } | |
1836 | ||
1837 | ||
c906108c SS |
1838 | /* Ensure that whatever gets printed next, using the filtered output |
1839 | commands, starts at the beginning of the line. I.E. if there is | |
1840 | any pending output for the current line, flush it and start a new | |
1841 | line. Otherwise do nothing. */ | |
1842 | ||
1843 | void | |
fba45db2 | 1844 | begin_line (void) |
c906108c SS |
1845 | { |
1846 | if (chars_printed > 0) | |
1847 | { | |
1848 | puts_filtered ("\n"); | |
1849 | } | |
1850 | } | |
1851 | ||
ac9a91a7 | 1852 | |
c906108c SS |
1853 | /* Like fputs but if FILTER is true, pause after every screenful. |
1854 | ||
1855 | Regardless of FILTER can wrap at points other than the final | |
1856 | character of a line. | |
1857 | ||
1858 | Unlike fputs, fputs_maybe_filtered does not return a value. | |
1859 | It is OK for LINEBUFFER to be NULL, in which case just don't print | |
1860 | anything. | |
1861 | ||
1862 | Note that a longjmp to top level may occur in this routine (only if | |
1863 | FILTER is true) (since prompt_for_continue may do so) so this | |
1864 | routine should not be called when cleanups are not in place. */ | |
1865 | ||
1866 | static void | |
fba45db2 KB |
1867 | fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream, |
1868 | int filter) | |
c906108c SS |
1869 | { |
1870 | const char *lineptr; | |
1871 | ||
1872 | if (linebuffer == 0) | |
1873 | return; | |
1874 | ||
1875 | /* Don't do any filtering if it is disabled. */ | |
7a292a7a | 1876 | if ((stream != gdb_stdout) || !pagination_enabled |
c5aa993b | 1877 | || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)) |
c906108c SS |
1878 | { |
1879 | fputs_unfiltered (linebuffer, stream); | |
1880 | return; | |
1881 | } | |
1882 | ||
1883 | /* Go through and output each character. Show line extension | |
1884 | when this is necessary; prompt user for new page when this is | |
1885 | necessary. */ | |
c5aa993b | 1886 | |
c906108c SS |
1887 | lineptr = linebuffer; |
1888 | while (*lineptr) | |
1889 | { | |
1890 | /* Possible new page. */ | |
8731e58e | 1891 | if (filter && (lines_printed >= lines_per_page - 1)) |
c906108c SS |
1892 | prompt_for_continue (); |
1893 | ||
1894 | while (*lineptr && *lineptr != '\n') | |
1895 | { | |
1896 | /* Print a single line. */ | |
1897 | if (*lineptr == '\t') | |
1898 | { | |
1899 | if (wrap_column) | |
1900 | *wrap_pointer++ = '\t'; | |
1901 | else | |
1902 | fputc_unfiltered ('\t', stream); | |
1903 | /* Shifting right by 3 produces the number of tab stops | |
1904 | we have already passed, and then adding one and | |
c5aa993b | 1905 | shifting left 3 advances to the next tab stop. */ |
c906108c SS |
1906 | chars_printed = ((chars_printed >> 3) + 1) << 3; |
1907 | lineptr++; | |
1908 | } | |
1909 | else | |
1910 | { | |
1911 | if (wrap_column) | |
1912 | *wrap_pointer++ = *lineptr; | |
1913 | else | |
c5aa993b | 1914 | fputc_unfiltered (*lineptr, stream); |
c906108c SS |
1915 | chars_printed++; |
1916 | lineptr++; | |
1917 | } | |
c5aa993b | 1918 | |
c906108c SS |
1919 | if (chars_printed >= chars_per_line) |
1920 | { | |
1921 | unsigned int save_chars = chars_printed; | |
1922 | ||
1923 | chars_printed = 0; | |
1924 | lines_printed++; | |
1925 | /* If we aren't actually wrapping, don't output newline -- | |
c5aa993b JM |
1926 | if chars_per_line is right, we probably just overflowed |
1927 | anyway; if it's wrong, let us keep going. */ | |
c906108c SS |
1928 | if (wrap_column) |
1929 | fputc_unfiltered ('\n', stream); | |
1930 | ||
1931 | /* Possible new page. */ | |
1932 | if (lines_printed >= lines_per_page - 1) | |
1933 | prompt_for_continue (); | |
1934 | ||
1935 | /* Now output indentation and wrapped string */ | |
1936 | if (wrap_column) | |
1937 | { | |
1938 | fputs_unfiltered (wrap_indent, stream); | |
8731e58e | 1939 | *wrap_pointer = '\0'; /* Null-terminate saved stuff */ |
c5aa993b | 1940 | fputs_unfiltered (wrap_buffer, stream); /* and eject it */ |
c906108c SS |
1941 | /* FIXME, this strlen is what prevents wrap_indent from |
1942 | containing tabs. However, if we recurse to print it | |
1943 | and count its chars, we risk trouble if wrap_indent is | |
1944 | longer than (the user settable) chars_per_line. | |
1945 | Note also that this can set chars_printed > chars_per_line | |
1946 | if we are printing a long string. */ | |
1947 | chars_printed = strlen (wrap_indent) | |
c5aa993b | 1948 | + (save_chars - wrap_column); |
c906108c SS |
1949 | wrap_pointer = wrap_buffer; /* Reset buffer */ |
1950 | wrap_buffer[0] = '\0'; | |
c5aa993b JM |
1951 | wrap_column = 0; /* And disable fancy wrap */ |
1952 | } | |
c906108c SS |
1953 | } |
1954 | } | |
1955 | ||
1956 | if (*lineptr == '\n') | |
1957 | { | |
1958 | chars_printed = 0; | |
c5aa993b | 1959 | wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */ |
c906108c SS |
1960 | lines_printed++; |
1961 | fputc_unfiltered ('\n', stream); | |
1962 | lineptr++; | |
1963 | } | |
1964 | } | |
1965 | } | |
1966 | ||
1967 | void | |
fba45db2 | 1968 | fputs_filtered (const char *linebuffer, struct ui_file *stream) |
c906108c SS |
1969 | { |
1970 | fputs_maybe_filtered (linebuffer, stream, 1); | |
1971 | } | |
1972 | ||
1973 | int | |
fba45db2 | 1974 | putchar_unfiltered (int c) |
c906108c | 1975 | { |
11cf8741 | 1976 | char buf = c; |
d9fcf2fb | 1977 | ui_file_write (gdb_stdout, &buf, 1); |
c906108c SS |
1978 | return c; |
1979 | } | |
1980 | ||
d1f4cff8 AC |
1981 | /* Write character C to gdb_stdout using GDB's paging mechanism and return C. |
1982 | May return nonlocally. */ | |
1983 | ||
1984 | int | |
1985 | putchar_filtered (int c) | |
1986 | { | |
1987 | return fputc_filtered (c, gdb_stdout); | |
1988 | } | |
1989 | ||
c906108c | 1990 | int |
fba45db2 | 1991 | fputc_unfiltered (int c, struct ui_file *stream) |
c906108c | 1992 | { |
11cf8741 | 1993 | char buf = c; |
d9fcf2fb | 1994 | ui_file_write (stream, &buf, 1); |
c906108c SS |
1995 | return c; |
1996 | } | |
1997 | ||
1998 | int | |
fba45db2 | 1999 | fputc_filtered (int c, struct ui_file *stream) |
c906108c SS |
2000 | { |
2001 | char buf[2]; | |
2002 | ||
2003 | buf[0] = c; | |
2004 | buf[1] = 0; | |
2005 | fputs_filtered (buf, stream); | |
2006 | return c; | |
2007 | } | |
2008 | ||
2009 | /* puts_debug is like fputs_unfiltered, except it prints special | |
2010 | characters in printable fashion. */ | |
2011 | ||
2012 | void | |
fba45db2 | 2013 | puts_debug (char *prefix, char *string, char *suffix) |
c906108c SS |
2014 | { |
2015 | int ch; | |
2016 | ||
2017 | /* Print prefix and suffix after each line. */ | |
2018 | static int new_line = 1; | |
2019 | static int return_p = 0; | |
2020 | static char *prev_prefix = ""; | |
2021 | static char *prev_suffix = ""; | |
2022 | ||
2023 | if (*string == '\n') | |
2024 | return_p = 0; | |
2025 | ||
2026 | /* If the prefix is changing, print the previous suffix, a new line, | |
2027 | and the new prefix. */ | |
c5aa993b | 2028 | if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line) |
c906108c | 2029 | { |
9846de1b JM |
2030 | fputs_unfiltered (prev_suffix, gdb_stdlog); |
2031 | fputs_unfiltered ("\n", gdb_stdlog); | |
2032 | fputs_unfiltered (prefix, gdb_stdlog); | |
c906108c SS |
2033 | } |
2034 | ||
2035 | /* Print prefix if we printed a newline during the previous call. */ | |
2036 | if (new_line) | |
2037 | { | |
2038 | new_line = 0; | |
9846de1b | 2039 | fputs_unfiltered (prefix, gdb_stdlog); |
c906108c SS |
2040 | } |
2041 | ||
2042 | prev_prefix = prefix; | |
2043 | prev_suffix = suffix; | |
2044 | ||
2045 | /* Output characters in a printable format. */ | |
2046 | while ((ch = *string++) != '\0') | |
2047 | { | |
2048 | switch (ch) | |
c5aa993b | 2049 | { |
c906108c SS |
2050 | default: |
2051 | if (isprint (ch)) | |
9846de1b | 2052 | fputc_unfiltered (ch, gdb_stdlog); |
c906108c SS |
2053 | |
2054 | else | |
9846de1b | 2055 | fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff); |
c906108c SS |
2056 | break; |
2057 | ||
c5aa993b JM |
2058 | case '\\': |
2059 | fputs_unfiltered ("\\\\", gdb_stdlog); | |
2060 | break; | |
2061 | case '\b': | |
2062 | fputs_unfiltered ("\\b", gdb_stdlog); | |
2063 | break; | |
2064 | case '\f': | |
2065 | fputs_unfiltered ("\\f", gdb_stdlog); | |
2066 | break; | |
2067 | case '\n': | |
2068 | new_line = 1; | |
2069 | fputs_unfiltered ("\\n", gdb_stdlog); | |
2070 | break; | |
2071 | case '\r': | |
2072 | fputs_unfiltered ("\\r", gdb_stdlog); | |
2073 | break; | |
2074 | case '\t': | |
2075 | fputs_unfiltered ("\\t", gdb_stdlog); | |
2076 | break; | |
2077 | case '\v': | |
2078 | fputs_unfiltered ("\\v", gdb_stdlog); | |
2079 | break; | |
2080 | } | |
c906108c SS |
2081 | |
2082 | return_p = ch == '\r'; | |
2083 | } | |
2084 | ||
2085 | /* Print suffix if we printed a newline. */ | |
2086 | if (new_line) | |
2087 | { | |
9846de1b JM |
2088 | fputs_unfiltered (suffix, gdb_stdlog); |
2089 | fputs_unfiltered ("\n", gdb_stdlog); | |
c906108c SS |
2090 | } |
2091 | } | |
2092 | ||
2093 | ||
2094 | /* Print a variable number of ARGS using format FORMAT. If this | |
2095 | information is going to put the amount written (since the last call | |
2096 | to REINITIALIZE_MORE_FILTER or the last page break) over the page size, | |
2097 | call prompt_for_continue to get the users permision to continue. | |
2098 | ||
2099 | Unlike fprintf, this function does not return a value. | |
2100 | ||
2101 | We implement three variants, vfprintf (takes a vararg list and stream), | |
2102 | fprintf (takes a stream to write on), and printf (the usual). | |
2103 | ||
2104 | Note also that a longjmp to top level may occur in this routine | |
2105 | (since prompt_for_continue may do so) so this routine should not be | |
2106 | called when cleanups are not in place. */ | |
2107 | ||
2108 | static void | |
fba45db2 KB |
2109 | vfprintf_maybe_filtered (struct ui_file *stream, const char *format, |
2110 | va_list args, int filter) | |
c906108c SS |
2111 | { |
2112 | char *linebuffer; | |
2113 | struct cleanup *old_cleanups; | |
2114 | ||
e623b504 | 2115 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2116 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2117 | fputs_maybe_filtered (linebuffer, stream, filter); |
2118 | do_cleanups (old_cleanups); | |
2119 | } | |
2120 | ||
2121 | ||
2122 | void | |
fba45db2 | 2123 | vfprintf_filtered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2124 | { |
2125 | vfprintf_maybe_filtered (stream, format, args, 1); | |
2126 | } | |
2127 | ||
2128 | void | |
fba45db2 | 2129 | vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args) |
c906108c SS |
2130 | { |
2131 | char *linebuffer; | |
2132 | struct cleanup *old_cleanups; | |
2133 | ||
e623b504 | 2134 | linebuffer = xstrvprintf (format, args); |
b8c9b27d | 2135 | old_cleanups = make_cleanup (xfree, linebuffer); |
c906108c SS |
2136 | fputs_unfiltered (linebuffer, stream); |
2137 | do_cleanups (old_cleanups); | |
2138 | } | |
2139 | ||
2140 | void | |
fba45db2 | 2141 | vprintf_filtered (const char *format, va_list args) |
c906108c SS |
2142 | { |
2143 | vfprintf_maybe_filtered (gdb_stdout, format, args, 1); | |
2144 | } | |
2145 | ||
2146 | void | |
fba45db2 | 2147 | vprintf_unfiltered (const char *format, va_list args) |
c906108c SS |
2148 | { |
2149 | vfprintf_unfiltered (gdb_stdout, format, args); | |
2150 | } | |
2151 | ||
c906108c | 2152 | void |
8731e58e | 2153 | fprintf_filtered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2154 | { |
2155 | va_list args; | |
c906108c | 2156 | va_start (args, format); |
c906108c SS |
2157 | vfprintf_filtered (stream, format, args); |
2158 | va_end (args); | |
2159 | } | |
2160 | ||
c906108c | 2161 | void |
8731e58e | 2162 | fprintf_unfiltered (struct ui_file *stream, const char *format, ...) |
c906108c SS |
2163 | { |
2164 | va_list args; | |
c906108c | 2165 | va_start (args, format); |
c906108c SS |
2166 | vfprintf_unfiltered (stream, format, args); |
2167 | va_end (args); | |
2168 | } | |
2169 | ||
2170 | /* Like fprintf_filtered, but prints its result indented. | |
2171 | Called as fprintfi_filtered (spaces, stream, format, ...); */ | |
2172 | ||
c906108c | 2173 | void |
8731e58e AC |
2174 | fprintfi_filtered (int spaces, struct ui_file *stream, const char *format, |
2175 | ...) | |
c906108c SS |
2176 | { |
2177 | va_list args; | |
c906108c | 2178 | va_start (args, format); |
c906108c SS |
2179 | print_spaces_filtered (spaces, stream); |
2180 | ||
2181 | vfprintf_filtered (stream, format, args); | |
2182 | va_end (args); | |
2183 | } | |
2184 | ||
2185 | ||
c906108c | 2186 | void |
8731e58e | 2187 | printf_filtered (const char *format, ...) |
c906108c SS |
2188 | { |
2189 | va_list args; | |
c906108c | 2190 | va_start (args, format); |
c906108c SS |
2191 | vfprintf_filtered (gdb_stdout, format, args); |
2192 | va_end (args); | |
2193 | } | |
2194 | ||
2195 | ||
c906108c | 2196 | void |
8731e58e | 2197 | printf_unfiltered (const char *format, ...) |
c906108c SS |
2198 | { |
2199 | va_list args; | |
c906108c | 2200 | va_start (args, format); |
c906108c SS |
2201 | vfprintf_unfiltered (gdb_stdout, format, args); |
2202 | va_end (args); | |
2203 | } | |
2204 | ||
2205 | /* Like printf_filtered, but prints it's result indented. | |
2206 | Called as printfi_filtered (spaces, format, ...); */ | |
2207 | ||
c906108c | 2208 | void |
8731e58e | 2209 | printfi_filtered (int spaces, const char *format, ...) |
c906108c SS |
2210 | { |
2211 | va_list args; | |
c906108c | 2212 | va_start (args, format); |
c906108c SS |
2213 | print_spaces_filtered (spaces, gdb_stdout); |
2214 | vfprintf_filtered (gdb_stdout, format, args); | |
2215 | va_end (args); | |
2216 | } | |
2217 | ||
2218 | /* Easy -- but watch out! | |
2219 | ||
2220 | This routine is *not* a replacement for puts()! puts() appends a newline. | |
2221 | This one doesn't, and had better not! */ | |
2222 | ||
2223 | void | |
fba45db2 | 2224 | puts_filtered (const char *string) |
c906108c SS |
2225 | { |
2226 | fputs_filtered (string, gdb_stdout); | |
2227 | } | |
2228 | ||
2229 | void | |
fba45db2 | 2230 | puts_unfiltered (const char *string) |
c906108c SS |
2231 | { |
2232 | fputs_unfiltered (string, gdb_stdout); | |
2233 | } | |
2234 | ||
2235 | /* Return a pointer to N spaces and a null. The pointer is good | |
2236 | until the next call to here. */ | |
2237 | char * | |
fba45db2 | 2238 | n_spaces (int n) |
c906108c | 2239 | { |
392a587b JM |
2240 | char *t; |
2241 | static char *spaces = 0; | |
2242 | static int max_spaces = -1; | |
c906108c SS |
2243 | |
2244 | if (n > max_spaces) | |
2245 | { | |
2246 | if (spaces) | |
b8c9b27d | 2247 | xfree (spaces); |
c5aa993b JM |
2248 | spaces = (char *) xmalloc (n + 1); |
2249 | for (t = spaces + n; t != spaces;) | |
c906108c SS |
2250 | *--t = ' '; |
2251 | spaces[n] = '\0'; | |
2252 | max_spaces = n; | |
2253 | } | |
2254 | ||
2255 | return spaces + max_spaces - n; | |
2256 | } | |
2257 | ||
2258 | /* Print N spaces. */ | |
2259 | void | |
fba45db2 | 2260 | print_spaces_filtered (int n, struct ui_file *stream) |
c906108c SS |
2261 | { |
2262 | fputs_filtered (n_spaces (n), stream); | |
2263 | } | |
2264 | \f | |
4a351cef | 2265 | /* C++/ObjC demangler stuff. */ |
c906108c | 2266 | |
389e51db AC |
2267 | /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language |
2268 | LANG, using demangling args ARG_MODE, and print it filtered to STREAM. | |
2269 | If the name is not mangled, or the language for the name is unknown, or | |
2270 | demangling is off, the name is printed in its "raw" form. */ | |
c906108c SS |
2271 | |
2272 | void | |
8731e58e AC |
2273 | fprintf_symbol_filtered (struct ui_file *stream, char *name, |
2274 | enum language lang, int arg_mode) | |
c906108c SS |
2275 | { |
2276 | char *demangled; | |
2277 | ||
2278 | if (name != NULL) | |
2279 | { | |
2280 | /* If user wants to see raw output, no problem. */ | |
2281 | if (!demangle) | |
2282 | { | |
2283 | fputs_filtered (name, stream); | |
2284 | } | |
2285 | else | |
2286 | { | |
9a3d7dfd | 2287 | demangled = language_demangle (language_def (lang), name, arg_mode); |
c906108c SS |
2288 | fputs_filtered (demangled ? demangled : name, stream); |
2289 | if (demangled != NULL) | |
2290 | { | |
b8c9b27d | 2291 | xfree (demangled); |
c906108c SS |
2292 | } |
2293 | } | |
2294 | } | |
2295 | } | |
2296 | ||
2297 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
2298 | differences in whitespace. Returns 0 if they match, non-zero if they | |
2299 | don't (slightly different than strcmp()'s range of return values). | |
c5aa993b | 2300 | |
c906108c SS |
2301 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". |
2302 | This "feature" is useful when searching for matching C++ function names | |
2303 | (such as if the user types 'break FOO', where FOO is a mangled C++ | |
2304 | function). */ | |
2305 | ||
2306 | int | |
fba45db2 | 2307 | strcmp_iw (const char *string1, const char *string2) |
c906108c SS |
2308 | { |
2309 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2310 | { | |
2311 | while (isspace (*string1)) | |
2312 | { | |
2313 | string1++; | |
2314 | } | |
2315 | while (isspace (*string2)) | |
2316 | { | |
2317 | string2++; | |
2318 | } | |
2319 | if (*string1 != *string2) | |
2320 | { | |
2321 | break; | |
2322 | } | |
2323 | if (*string1 != '\0') | |
2324 | { | |
2325 | string1++; | |
2326 | string2++; | |
2327 | } | |
2328 | } | |
2329 | return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); | |
2330 | } | |
2de7ced7 | 2331 | |
0fe19209 DC |
2332 | /* This is like strcmp except that it ignores whitespace and treats |
2333 | '(' as the first non-NULL character in terms of ordering. Like | |
2334 | strcmp (and unlike strcmp_iw), it returns negative if STRING1 < | |
2335 | STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2 | |
2336 | according to that ordering. | |
2337 | ||
2338 | If a list is sorted according to this function and if you want to | |
2339 | find names in the list that match some fixed NAME according to | |
2340 | strcmp_iw(LIST_ELT, NAME), then the place to start looking is right | |
2341 | where this function would put NAME. | |
2342 | ||
2343 | Here are some examples of why using strcmp to sort is a bad idea: | |
2344 | ||
2345 | Whitespace example: | |
2346 | ||
2347 | Say your partial symtab contains: "foo<char *>", "goo". Then, if | |
2348 | we try to do a search for "foo<char*>", strcmp will locate this | |
2349 | after "foo<char *>" and before "goo". Then lookup_partial_symbol | |
2350 | will start looking at strings beginning with "goo", and will never | |
2351 | see the correct match of "foo<char *>". | |
2352 | ||
2353 | Parenthesis example: | |
2354 | ||
2355 | In practice, this is less like to be an issue, but I'll give it a | |
2356 | shot. Let's assume that '$' is a legitimate character to occur in | |
2357 | symbols. (Which may well even be the case on some systems.) Then | |
2358 | say that the partial symbol table contains "foo$" and "foo(int)". | |
2359 | strcmp will put them in this order, since '$' < '('. Now, if the | |
2360 | user searches for "foo", then strcmp will sort "foo" before "foo$". | |
2361 | Then lookup_partial_symbol will notice that strcmp_iw("foo$", | |
2362 | "foo") is false, so it won't proceed to the actual match of | |
2363 | "foo(int)" with "foo". */ | |
2364 | ||
2365 | int | |
2366 | strcmp_iw_ordered (const char *string1, const char *string2) | |
2367 | { | |
2368 | while ((*string1 != '\0') && (*string2 != '\0')) | |
2369 | { | |
2370 | while (isspace (*string1)) | |
2371 | { | |
2372 | string1++; | |
2373 | } | |
2374 | while (isspace (*string2)) | |
2375 | { | |
2376 | string2++; | |
2377 | } | |
2378 | if (*string1 != *string2) | |
2379 | { | |
2380 | break; | |
2381 | } | |
2382 | if (*string1 != '\0') | |
2383 | { | |
2384 | string1++; | |
2385 | string2++; | |
2386 | } | |
2387 | } | |
2388 | ||
2389 | switch (*string1) | |
2390 | { | |
2391 | /* Characters are non-equal unless they're both '\0'; we want to | |
2392 | make sure we get the comparison right according to our | |
2393 | comparison in the cases where one of them is '\0' or '('. */ | |
2394 | case '\0': | |
2395 | if (*string2 == '\0') | |
2396 | return 0; | |
2397 | else | |
2398 | return -1; | |
2399 | case '(': | |
2400 | if (*string2 == '\0') | |
2401 | return 1; | |
2402 | else | |
2403 | return -1; | |
2404 | default: | |
2405 | if (*string2 == '(') | |
2406 | return 1; | |
2407 | else | |
2408 | return *string1 - *string2; | |
2409 | } | |
2410 | } | |
2411 | ||
2de7ced7 DJ |
2412 | /* A simple comparison function with opposite semantics to strcmp. */ |
2413 | ||
2414 | int | |
2415 | streq (const char *lhs, const char *rhs) | |
2416 | { | |
2417 | return !strcmp (lhs, rhs); | |
2418 | } | |
c906108c | 2419 | \f |
c5aa993b | 2420 | |
c906108c | 2421 | /* |
c5aa993b JM |
2422 | ** subset_compare() |
2423 | ** Answer whether string_to_compare is a full or partial match to | |
2424 | ** template_string. The partial match must be in sequence starting | |
2425 | ** at index 0. | |
2426 | */ | |
c906108c | 2427 | int |
fba45db2 | 2428 | subset_compare (char *string_to_compare, char *template_string) |
7a292a7a SS |
2429 | { |
2430 | int match; | |
8731e58e AC |
2431 | if (template_string != (char *) NULL && string_to_compare != (char *) NULL |
2432 | && strlen (string_to_compare) <= strlen (template_string)) | |
2433 | match = | |
2434 | (strncmp | |
2435 | (template_string, string_to_compare, strlen (string_to_compare)) == 0); | |
7a292a7a SS |
2436 | else |
2437 | match = 0; | |
2438 | return match; | |
2439 | } | |
c906108c | 2440 | |
7a292a7a | 2441 | static void |
fba45db2 | 2442 | pagination_on_command (char *arg, int from_tty) |
c906108c SS |
2443 | { |
2444 | pagination_enabled = 1; | |
2445 | } | |
2446 | ||
7a292a7a | 2447 | static void |
fba45db2 | 2448 | pagination_off_command (char *arg, int from_tty) |
c906108c SS |
2449 | { |
2450 | pagination_enabled = 0; | |
2451 | } | |
c906108c | 2452 | \f |
c5aa993b | 2453 | |
c906108c | 2454 | void |
fba45db2 | 2455 | initialize_utils (void) |
c906108c SS |
2456 | { |
2457 | struct cmd_list_element *c; | |
2458 | ||
35096d9d AC |
2459 | add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\ |
2460 | Set number of characters gdb thinks are in a line."), _("\ | |
2461 | Show number of characters gdb thinks are in a line."), NULL, | |
2462 | set_width_command, | |
920d2a44 | 2463 | show_chars_per_line, |
35096d9d AC |
2464 | &setlist, &showlist); |
2465 | ||
2466 | add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\ | |
2467 | Set number of lines gdb thinks are in a page."), _("\ | |
2468 | Show number of lines gdb thinks are in a page."), NULL, | |
2469 | set_height_command, | |
920d2a44 | 2470 | show_lines_per_page, |
35096d9d | 2471 | &setlist, &showlist); |
c5aa993b | 2472 | |
c906108c SS |
2473 | init_page_info (); |
2474 | ||
5bf193a2 AC |
2475 | add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\ |
2476 | Set demangling of encoded C++/ObjC names when displaying symbols."), _("\ | |
2477 | Show demangling of encoded C++/ObjC names when displaying symbols."), NULL, | |
2478 | NULL, | |
920d2a44 | 2479 | show_demangle, |
5bf193a2 AC |
2480 | &setprintlist, &showprintlist); |
2481 | ||
2482 | add_setshow_boolean_cmd ("pagination", class_support, | |
2483 | &pagination_enabled, _("\ | |
2484 | Set state of pagination."), _("\ | |
2485 | Show state of pagination."), NULL, | |
2486 | NULL, | |
920d2a44 | 2487 | show_pagination_enabled, |
5bf193a2 | 2488 | &setlist, &showlist); |
4261bedc | 2489 | |
c906108c SS |
2490 | if (xdb_commands) |
2491 | { | |
c5aa993b | 2492 | add_com ("am", class_support, pagination_on_command, |
1bedd215 | 2493 | _("Enable pagination")); |
c5aa993b | 2494 | add_com ("sm", class_support, pagination_off_command, |
1bedd215 | 2495 | _("Disable pagination")); |
c906108c SS |
2496 | } |
2497 | ||
5bf193a2 AC |
2498 | add_setshow_boolean_cmd ("sevenbit-strings", class_support, |
2499 | &sevenbit_strings, _("\ | |
2500 | Set printing of 8-bit characters in strings as \\nnn."), _("\ | |
2501 | Show printing of 8-bit characters in strings as \\nnn."), NULL, | |
2502 | NULL, | |
920d2a44 | 2503 | show_sevenbit_strings, |
5bf193a2 AC |
2504 | &setprintlist, &showprintlist); |
2505 | ||
2506 | add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\ | |
2507 | Set demangling of C++/ObjC names in disassembly listings."), _("\ | |
2508 | Show demangling of C++/ObjC names in disassembly listings."), NULL, | |
2509 | NULL, | |
920d2a44 | 2510 | show_asm_demangle, |
5bf193a2 | 2511 | &setprintlist, &showprintlist); |
c906108c SS |
2512 | } |
2513 | ||
2514 | /* Machine specific function to handle SIGWINCH signal. */ | |
2515 | ||
2516 | #ifdef SIGWINCH_HANDLER_BODY | |
c5aa993b | 2517 | SIGWINCH_HANDLER_BODY |
c906108c | 2518 | #endif |
5683e87a | 2519 | /* print routines to handle variable size regs, etc. */ |
c906108c SS |
2520 | /* temporary storage using circular buffer */ |
2521 | #define NUMCELLS 16 | |
0759e0bf | 2522 | #define CELLSIZE 50 |
c5aa993b | 2523 | static char * |
fba45db2 | 2524 | get_cell (void) |
c906108c SS |
2525 | { |
2526 | static char buf[NUMCELLS][CELLSIZE]; | |
c5aa993b JM |
2527 | static int cell = 0; |
2528 | if (++cell >= NUMCELLS) | |
2529 | cell = 0; | |
c906108c SS |
2530 | return buf[cell]; |
2531 | } | |
2532 | ||
d4f3574e SS |
2533 | int |
2534 | strlen_paddr (void) | |
2535 | { | |
17a912b6 | 2536 | return (gdbarch_addr_bit (current_gdbarch) / 8 * 2); |
d4f3574e SS |
2537 | } |
2538 | ||
c5aa993b | 2539 | char * |
104c1213 | 2540 | paddr (CORE_ADDR addr) |
c906108c | 2541 | { |
17a912b6 | 2542 | return phex (addr, gdbarch_addr_bit (current_gdbarch) / 8); |
c906108c SS |
2543 | } |
2544 | ||
c5aa993b | 2545 | char * |
104c1213 | 2546 | paddr_nz (CORE_ADDR addr) |
c906108c | 2547 | { |
17a912b6 | 2548 | return phex_nz (addr, gdbarch_addr_bit (current_gdbarch) / 8); |
c906108c SS |
2549 | } |
2550 | ||
66bf4b3a AC |
2551 | const char * |
2552 | paddress (CORE_ADDR addr) | |
2553 | { | |
2554 | /* Truncate address to the size of a target address, avoiding shifts | |
2555 | larger or equal than the width of a CORE_ADDR. The local | |
2556 | variable ADDR_BIT stops the compiler reporting a shift overflow | |
2557 | when it won't occur. */ | |
2558 | /* NOTE: This assumes that the significant address information is | |
2559 | kept in the least significant bits of ADDR - the upper bits were | |
76e71323 | 2560 | either zero or sign extended. Should gdbarch_address_to_pointer or |
66bf4b3a AC |
2561 | some ADDRESS_TO_PRINTABLE() be used to do the conversion? */ |
2562 | ||
17a912b6 | 2563 | int addr_bit = gdbarch_addr_bit (current_gdbarch); |
66bf4b3a AC |
2564 | |
2565 | if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)) | |
2566 | addr &= ((CORE_ADDR) 1 << addr_bit) - 1; | |
2567 | return hex_string (addr); | |
2568 | } | |
2569 | ||
8cf46f62 MK |
2570 | static char * |
2571 | decimal2str (char *sign, ULONGEST addr, int width) | |
104c1213 | 2572 | { |
8cf46f62 | 2573 | /* Steal code from valprint.c:print_decimal(). Should this worry |
104c1213 JM |
2574 | about the real size of addr as the above does? */ |
2575 | unsigned long temp[3]; | |
8cf46f62 MK |
2576 | char *str = get_cell (); |
2577 | ||
104c1213 JM |
2578 | int i = 0; |
2579 | do | |
2580 | { | |
2581 | temp[i] = addr % (1000 * 1000 * 1000); | |
2582 | addr /= (1000 * 1000 * 1000); | |
2583 | i++; | |
bb599908 | 2584 | width -= 9; |
104c1213 JM |
2585 | } |
2586 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2587 | |
bb599908 PH |
2588 | width += 9; |
2589 | if (width < 0) | |
2590 | width = 0; | |
8cf46f62 | 2591 | |
104c1213 JM |
2592 | switch (i) |
2593 | { | |
2594 | case 1: | |
8cf46f62 | 2595 | xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]); |
104c1213 JM |
2596 | break; |
2597 | case 2: | |
8cf46f62 MK |
2598 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width, |
2599 | temp[1], temp[0]); | |
104c1213 JM |
2600 | break; |
2601 | case 3: | |
8cf46f62 MK |
2602 | xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width, |
2603 | temp[2], temp[1], temp[0]); | |
bb599908 PH |
2604 | break; |
2605 | default: | |
2606 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2607 | _("failed internal consistency check")); |
bb599908 | 2608 | } |
8cf46f62 MK |
2609 | |
2610 | return str; | |
bb599908 PH |
2611 | } |
2612 | ||
8cf46f62 MK |
2613 | static char * |
2614 | octal2str (ULONGEST addr, int width) | |
bb599908 PH |
2615 | { |
2616 | unsigned long temp[3]; | |
8cf46f62 MK |
2617 | char *str = get_cell (); |
2618 | ||
bb599908 PH |
2619 | int i = 0; |
2620 | do | |
2621 | { | |
2622 | temp[i] = addr % (0100000 * 0100000); | |
2623 | addr /= (0100000 * 0100000); | |
2624 | i++; | |
2625 | width -= 10; | |
2626 | } | |
2627 | while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0]))); | |
8cf46f62 | 2628 | |
bb599908 PH |
2629 | width += 10; |
2630 | if (width < 0) | |
2631 | width = 0; | |
8cf46f62 | 2632 | |
bb599908 PH |
2633 | switch (i) |
2634 | { | |
2635 | case 1: | |
2636 | if (temp[0] == 0) | |
8cf46f62 | 2637 | xsnprintf (str, CELLSIZE, "%*o", width, 0); |
bb599908 | 2638 | else |
8cf46f62 | 2639 | xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]); |
bb599908 PH |
2640 | break; |
2641 | case 2: | |
8cf46f62 | 2642 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]); |
bb599908 PH |
2643 | break; |
2644 | case 3: | |
8cf46f62 MK |
2645 | xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width, |
2646 | temp[2], temp[1], temp[0]); | |
104c1213 JM |
2647 | break; |
2648 | default: | |
8731e58e | 2649 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 2650 | _("failed internal consistency check")); |
104c1213 | 2651 | } |
8cf46f62 MK |
2652 | |
2653 | return str; | |
104c1213 JM |
2654 | } |
2655 | ||
2656 | char * | |
2657 | paddr_u (CORE_ADDR addr) | |
2658 | { | |
8cf46f62 | 2659 | return decimal2str ("", addr, 0); |
104c1213 JM |
2660 | } |
2661 | ||
2662 | char * | |
2663 | paddr_d (LONGEST addr) | |
2664 | { | |
104c1213 | 2665 | if (addr < 0) |
8cf46f62 | 2666 | return decimal2str ("-", -addr, 0); |
104c1213 | 2667 | else |
8cf46f62 | 2668 | return decimal2str ("", addr, 0); |
104c1213 JM |
2669 | } |
2670 | ||
8cf46f62 | 2671 | /* Eliminate warning from compiler on 32-bit systems. */ |
5683e87a AC |
2672 | static int thirty_two = 32; |
2673 | ||
104c1213 | 2674 | char * |
5683e87a | 2675 | phex (ULONGEST l, int sizeof_l) |
104c1213 | 2676 | { |
45a1e866 | 2677 | char *str; |
8cf46f62 | 2678 | |
5683e87a | 2679 | switch (sizeof_l) |
104c1213 JM |
2680 | { |
2681 | case 8: | |
45a1e866 | 2682 | str = get_cell (); |
8cf46f62 MK |
2683 | xsnprintf (str, CELLSIZE, "%08lx%08lx", |
2684 | (unsigned long) (l >> thirty_two), | |
2685 | (unsigned long) (l & 0xffffffff)); | |
104c1213 JM |
2686 | break; |
2687 | case 4: | |
45a1e866 | 2688 | str = get_cell (); |
8cf46f62 | 2689 | xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l); |
104c1213 JM |
2690 | break; |
2691 | case 2: | |
45a1e866 | 2692 | str = get_cell (); |
8cf46f62 | 2693 | xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff)); |
104c1213 JM |
2694 | break; |
2695 | default: | |
45a1e866 | 2696 | str = phex (l, sizeof (l)); |
5683e87a | 2697 | break; |
104c1213 | 2698 | } |
8cf46f62 | 2699 | |
5683e87a | 2700 | return str; |
104c1213 JM |
2701 | } |
2702 | ||
c5aa993b | 2703 | char * |
5683e87a | 2704 | phex_nz (ULONGEST l, int sizeof_l) |
c906108c | 2705 | { |
faf833ca | 2706 | char *str; |
8cf46f62 | 2707 | |
5683e87a | 2708 | switch (sizeof_l) |
c906108c | 2709 | { |
c5aa993b JM |
2710 | case 8: |
2711 | { | |
5683e87a | 2712 | unsigned long high = (unsigned long) (l >> thirty_two); |
faf833ca | 2713 | str = get_cell (); |
c5aa993b | 2714 | if (high == 0) |
8cf46f62 MK |
2715 | xsnprintf (str, CELLSIZE, "%lx", |
2716 | (unsigned long) (l & 0xffffffff)); | |
c5aa993b | 2717 | else |
8cf46f62 MK |
2718 | xsnprintf (str, CELLSIZE, "%lx%08lx", high, |
2719 | (unsigned long) (l & 0xffffffff)); | |
c906108c | 2720 | break; |
c5aa993b JM |
2721 | } |
2722 | case 4: | |
faf833ca | 2723 | str = get_cell (); |
8cf46f62 | 2724 | xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l); |
c5aa993b JM |
2725 | break; |
2726 | case 2: | |
faf833ca | 2727 | str = get_cell (); |
8cf46f62 | 2728 | xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff)); |
c5aa993b JM |
2729 | break; |
2730 | default: | |
faf833ca | 2731 | str = phex_nz (l, sizeof (l)); |
5683e87a | 2732 | break; |
c906108c | 2733 | } |
8cf46f62 | 2734 | |
5683e87a | 2735 | return str; |
c906108c | 2736 | } |
ac2e2ef7 | 2737 | |
0759e0bf AC |
2738 | /* Converts a LONGEST to a C-format hexadecimal literal and stores it |
2739 | in a static string. Returns a pointer to this string. */ | |
2740 | char * | |
2741 | hex_string (LONGEST num) | |
2742 | { | |
2743 | char *result = get_cell (); | |
8cf46f62 | 2744 | xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num))); |
0759e0bf AC |
2745 | return result; |
2746 | } | |
2747 | ||
2748 | /* Converts a LONGEST number to a C-format hexadecimal literal and | |
2749 | stores it in a static string. Returns a pointer to this string | |
2750 | that is valid until the next call. The number is padded on the | |
2751 | left with 0s to at least WIDTH characters. */ | |
2752 | char * | |
2753 | hex_string_custom (LONGEST num, int width) | |
2754 | { | |
2755 | char *result = get_cell (); | |
2756 | char *result_end = result + CELLSIZE - 1; | |
2757 | const char *hex = phex_nz (num, sizeof (num)); | |
2758 | int hex_len = strlen (hex); | |
2759 | ||
2760 | if (hex_len > width) | |
2761 | width = hex_len; | |
2762 | if (width + 2 >= CELLSIZE) | |
2763 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2764 | _("hex_string_custom: insufficient space to store result")); |
0759e0bf AC |
2765 | |
2766 | strcpy (result_end - width - 2, "0x"); | |
2767 | memset (result_end - width, '0', width); | |
2768 | strcpy (result_end - hex_len, hex); | |
2769 | return result_end - width - 2; | |
2770 | } | |
ac2e2ef7 | 2771 | |
bb599908 PH |
2772 | /* Convert VAL to a numeral in the given radix. For |
2773 | * radix 10, IS_SIGNED may be true, indicating a signed quantity; | |
2774 | * otherwise VAL is interpreted as unsigned. If WIDTH is supplied, | |
2775 | * it is the minimum width (0-padded if needed). USE_C_FORMAT means | |
2776 | * to use C format in all cases. If it is false, then 'x' | |
2777 | * and 'o' formats do not include a prefix (0x or leading 0). */ | |
2778 | ||
2779 | char * | |
2780 | int_string (LONGEST val, int radix, int is_signed, int width, | |
2781 | int use_c_format) | |
2782 | { | |
2783 | switch (radix) | |
2784 | { | |
2785 | case 16: | |
2786 | { | |
2787 | char *result; | |
2788 | if (width == 0) | |
2789 | result = hex_string (val); | |
2790 | else | |
2791 | result = hex_string_custom (val, width); | |
2792 | if (! use_c_format) | |
2793 | result += 2; | |
2794 | return result; | |
2795 | } | |
2796 | case 10: | |
2797 | { | |
bb599908 | 2798 | if (is_signed && val < 0) |
8cf46f62 | 2799 | return decimal2str ("-", -val, width); |
bb599908 | 2800 | else |
8cf46f62 | 2801 | return decimal2str ("", val, width); |
bb599908 PH |
2802 | } |
2803 | case 8: | |
2804 | { | |
8cf46f62 | 2805 | char *result = octal2str (val, width); |
bb599908 PH |
2806 | if (use_c_format || val == 0) |
2807 | return result; | |
2808 | else | |
2809 | return result + 1; | |
2810 | } | |
2811 | default: | |
2812 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 2813 | _("failed internal consistency check")); |
bb599908 PH |
2814 | } |
2815 | } | |
2816 | ||
03dd37c3 AC |
2817 | /* Convert a CORE_ADDR into a string. */ |
2818 | const char * | |
2819 | core_addr_to_string (const CORE_ADDR addr) | |
49b563f9 KS |
2820 | { |
2821 | char *str = get_cell (); | |
2822 | strcpy (str, "0x"); | |
2823 | strcat (str, phex (addr, sizeof (addr))); | |
2824 | return str; | |
2825 | } | |
2826 | ||
2827 | const char * | |
2828 | core_addr_to_string_nz (const CORE_ADDR addr) | |
03dd37c3 AC |
2829 | { |
2830 | char *str = get_cell (); | |
2831 | strcpy (str, "0x"); | |
2832 | strcat (str, phex_nz (addr, sizeof (addr))); | |
2833 | return str; | |
2834 | } | |
2835 | ||
2836 | /* Convert a string back into a CORE_ADDR. */ | |
2837 | CORE_ADDR | |
2838 | string_to_core_addr (const char *my_string) | |
2839 | { | |
2840 | CORE_ADDR addr = 0; | |
2841 | if (my_string[0] == '0' && tolower (my_string[1]) == 'x') | |
2842 | { | |
ced572fe | 2843 | /* Assume that it is in hex. */ |
03dd37c3 AC |
2844 | int i; |
2845 | for (i = 2; my_string[i] != '\0'; i++) | |
2846 | { | |
2847 | if (isdigit (my_string[i])) | |
2848 | addr = (my_string[i] - '0') + (addr * 16); | |
8731e58e | 2849 | else if (isxdigit (my_string[i])) |
03dd37c3 AC |
2850 | addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16); |
2851 | else | |
63f06803 | 2852 | error (_("invalid hex \"%s\""), my_string); |
03dd37c3 AC |
2853 | } |
2854 | } | |
2855 | else | |
2856 | { | |
2857 | /* Assume that it is in decimal. */ | |
2858 | int i; | |
2859 | for (i = 0; my_string[i] != '\0'; i++) | |
2860 | { | |
2861 | if (isdigit (my_string[i])) | |
2862 | addr = (my_string[i] - '0') + (addr * 10); | |
2863 | else | |
63f06803 | 2864 | error (_("invalid decimal \"%s\""), my_string); |
03dd37c3 AC |
2865 | } |
2866 | } | |
2867 | return addr; | |
2868 | } | |
58d370e0 TT |
2869 | |
2870 | char * | |
2871 | gdb_realpath (const char *filename) | |
2872 | { | |
70d35819 AC |
2873 | /* Method 1: The system has a compile time upper bound on a filename |
2874 | path. Use that and realpath() to canonicalize the name. This is | |
2875 | the most common case. Note that, if there isn't a compile time | |
2876 | upper bound, you want to avoid realpath() at all costs. */ | |
a4db0f07 | 2877 | #if defined(HAVE_REALPATH) |
70d35819 | 2878 | { |
a4db0f07 | 2879 | # if defined (PATH_MAX) |
70d35819 | 2880 | char buf[PATH_MAX]; |
a4db0f07 RH |
2881 | # define USE_REALPATH |
2882 | # elif defined (MAXPATHLEN) | |
70d35819 | 2883 | char buf[MAXPATHLEN]; |
a4db0f07 RH |
2884 | # define USE_REALPATH |
2885 | # endif | |
70d35819 | 2886 | # if defined (USE_REALPATH) |
82c0260e | 2887 | const char *rp = realpath (filename, buf); |
70d35819 AC |
2888 | if (rp == NULL) |
2889 | rp = filename; | |
2890 | return xstrdup (rp); | |
70d35819 | 2891 | # endif |
6f88d630 | 2892 | } |
a4db0f07 RH |
2893 | #endif /* HAVE_REALPATH */ |
2894 | ||
70d35819 AC |
2895 | /* Method 2: The host system (i.e., GNU) has the function |
2896 | canonicalize_file_name() which malloc's a chunk of memory and | |
2897 | returns that, use that. */ | |
2898 | #if defined(HAVE_CANONICALIZE_FILE_NAME) | |
2899 | { | |
2900 | char *rp = canonicalize_file_name (filename); | |
2901 | if (rp == NULL) | |
2902 | return xstrdup (filename); | |
2903 | else | |
2904 | return rp; | |
2905 | } | |
58d370e0 | 2906 | #endif |
70d35819 | 2907 | |
6411e720 AC |
2908 | /* FIXME: cagney/2002-11-13: |
2909 | ||
2910 | Method 2a: Use realpath() with a NULL buffer. Some systems, due | |
2911 | to the problems described in in method 3, have modified their | |
2912 | realpath() implementation so that it will allocate a buffer when | |
2913 | NULL is passed in. Before this can be used, though, some sort of | |
2914 | configure time test would need to be added. Otherwize the code | |
2915 | will likely core dump. */ | |
2916 | ||
70d35819 AC |
2917 | /* Method 3: Now we're getting desperate! The system doesn't have a |
2918 | compile time buffer size and no alternative function. Query the | |
2919 | OS, using pathconf(), for the buffer limit. Care is needed | |
2920 | though, some systems do not limit PATH_MAX (return -1 for | |
2921 | pathconf()) making it impossible to pass a correctly sized buffer | |
2922 | to realpath() (it could always overflow). On those systems, we | |
2923 | skip this. */ | |
2924 | #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA) | |
2925 | { | |
2926 | /* Find out the max path size. */ | |
2927 | long path_max = pathconf ("/", _PC_PATH_MAX); | |
2928 | if (path_max > 0) | |
2929 | { | |
2930 | /* PATH_MAX is bounded. */ | |
2931 | char *buf = alloca (path_max); | |
2932 | char *rp = realpath (filename, buf); | |
2933 | return xstrdup (rp ? rp : filename); | |
2934 | } | |
2935 | } | |
2936 | #endif | |
2937 | ||
2938 | /* This system is a lost cause, just dup the buffer. */ | |
2939 | return xstrdup (filename); | |
58d370e0 | 2940 | } |
303c8ebd JB |
2941 | |
2942 | /* Return a copy of FILENAME, with its directory prefix canonicalized | |
2943 | by gdb_realpath. */ | |
2944 | ||
2945 | char * | |
2946 | xfullpath (const char *filename) | |
2947 | { | |
2948 | const char *base_name = lbasename (filename); | |
2949 | char *dir_name; | |
2950 | char *real_path; | |
2951 | char *result; | |
2952 | ||
2953 | /* Extract the basename of filename, and return immediately | |
2954 | a copy of filename if it does not contain any directory prefix. */ | |
2955 | if (base_name == filename) | |
2956 | return xstrdup (filename); | |
2957 | ||
2958 | dir_name = alloca ((size_t) (base_name - filename + 2)); | |
2959 | /* Allocate enough space to store the dir_name + plus one extra | |
2960 | character sometimes needed under Windows (see below), and | |
2961 | then the closing \000 character */ | |
2962 | strncpy (dir_name, filename, base_name - filename); | |
2963 | dir_name[base_name - filename] = '\000'; | |
2964 | ||
2965 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM | |
2966 | /* We need to be careful when filename is of the form 'd:foo', which | |
2967 | is equivalent of d:./foo, which is totally different from d:/foo. */ | |
8731e58e | 2968 | if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':') |
303c8ebd JB |
2969 | { |
2970 | dir_name[2] = '.'; | |
2971 | dir_name[3] = '\000'; | |
2972 | } | |
2973 | #endif | |
2974 | ||
2975 | /* Canonicalize the directory prefix, and build the resulting | |
2976 | filename. If the dirname realpath already contains an ending | |
2977 | directory separator, avoid doubling it. */ | |
2978 | real_path = gdb_realpath (dir_name); | |
2979 | if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1])) | |
1754f103 | 2980 | result = concat (real_path, base_name, (char *)NULL); |
303c8ebd | 2981 | else |
1754f103 | 2982 | result = concat (real_path, SLASH_STRING, base_name, (char *)NULL); |
303c8ebd JB |
2983 | |
2984 | xfree (real_path); | |
2985 | return result; | |
2986 | } | |
5b5d99cf JB |
2987 | |
2988 | ||
2989 | /* This is the 32-bit CRC function used by the GNU separate debug | |
2990 | facility. An executable may contain a section named | |
2991 | .gnu_debuglink, which holds the name of a separate executable file | |
2992 | containing its debug info, and a checksum of that file's contents, | |
2993 | computed using this function. */ | |
2994 | unsigned long | |
2995 | gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len) | |
2996 | { | |
8731e58e AC |
2997 | static const unsigned long crc32_table[256] = { |
2998 | 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, | |
2999 | 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, | |
3000 | 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, | |
3001 | 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, | |
3002 | 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856, | |
3003 | 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, | |
3004 | 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, | |
3005 | 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, | |
3006 | 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, | |
3007 | 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a, | |
3008 | 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, | |
3009 | 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, | |
3010 | 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, | |
3011 | 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, | |
3012 | 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e, | |
3013 | 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01, | |
3014 | 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, | |
3015 | 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, | |
3016 | 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, | |
3017 | 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, | |
3018 | 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, | |
3019 | 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, | |
3020 | 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010, | |
3021 | 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, | |
3022 | 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, | |
3023 | 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, | |
3024 | 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, | |
3025 | 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, | |
3026 | 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344, | |
3027 | 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, | |
3028 | 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, | |
3029 | 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, | |
3030 | 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, | |
3031 | 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c, | |
3032 | 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, | |
3033 | 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, | |
3034 | 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, | |
3035 | 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, | |
3036 | 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c, | |
3037 | 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713, | |
3038 | 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, | |
3039 | 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, | |
3040 | 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, | |
3041 | 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, | |
3042 | 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278, | |
3043 | 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, | |
3044 | 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66, | |
3045 | 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, | |
3046 | 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, | |
3047 | 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, | |
3048 | 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, | |
3049 | 0x2d02ef8d | |
3050 | }; | |
5b5d99cf JB |
3051 | unsigned char *end; |
3052 | ||
3053 | crc = ~crc & 0xffffffff; | |
3054 | for (end = buf + len; buf < end; ++buf) | |
3055 | crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8); | |
3056 | return ~crc & 0xffffffff;; | |
3057 | } | |
5b03f266 AC |
3058 | |
3059 | ULONGEST | |
3060 | align_up (ULONGEST v, int n) | |
3061 | { | |
3062 | /* Check that N is really a power of two. */ | |
3063 | gdb_assert (n && (n & (n-1)) == 0); | |
3064 | return (v + n - 1) & -n; | |
3065 | } | |
3066 | ||
3067 | ULONGEST | |
3068 | align_down (ULONGEST v, int n) | |
3069 | { | |
3070 | /* Check that N is really a power of two. */ | |
3071 | gdb_assert (n && (n & (n-1)) == 0); | |
3072 | return (v & -n); | |
3073 | } | |
ae5a43e0 DJ |
3074 | |
3075 | /* Allocation function for the libiberty hash table which uses an | |
3076 | obstack. The obstack is passed as DATA. */ | |
3077 | ||
3078 | void * | |
3079 | hashtab_obstack_allocate (void *data, size_t size, size_t count) | |
3080 | { | |
3081 | unsigned int total = size * count; | |
3082 | void *ptr = obstack_alloc ((struct obstack *) data, total); | |
3083 | memset (ptr, 0, total); | |
3084 | return ptr; | |
3085 | } | |
3086 | ||
3087 | /* Trivial deallocation function for the libiberty splay tree and hash | |
3088 | table - don't deallocate anything. Rely on later deletion of the | |
3089 | obstack. DATA will be the obstack, although it is not needed | |
3090 | here. */ | |
3091 | ||
3092 | void | |
3093 | dummy_obstack_deallocate (void *object, void *data) | |
3094 | { | |
3095 | return; | |
3096 | } | |
253c8abb DJ |
3097 | |
3098 | /* The bit offset of the highest byte in a ULONGEST, for overflow | |
3099 | checking. */ | |
3100 | ||
3101 | #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT) | |
3102 | ||
3103 | /* True (non-zero) iff DIGIT is a valid digit in radix BASE, | |
3104 | where 2 <= BASE <= 36. */ | |
3105 | ||
3106 | static int | |
3107 | is_digit_in_base (unsigned char digit, int base) | |
3108 | { | |
3109 | if (!isalnum (digit)) | |
3110 | return 0; | |
3111 | if (base <= 10) | |
3112 | return (isdigit (digit) && digit < base + '0'); | |
3113 | else | |
3114 | return (isdigit (digit) || tolower (digit) < base - 10 + 'a'); | |
3115 | } | |
3116 | ||
3117 | static int | |
3118 | digit_to_int (unsigned char c) | |
3119 | { | |
3120 | if (isdigit (c)) | |
3121 | return c - '0'; | |
3122 | else | |
3123 | return tolower (c) - 'a' + 10; | |
3124 | } | |
3125 | ||
3126 | /* As for strtoul, but for ULONGEST results. */ | |
3127 | ||
3128 | ULONGEST | |
3129 | strtoulst (const char *num, const char **trailer, int base) | |
3130 | { | |
3131 | unsigned int high_part; | |
3132 | ULONGEST result; | |
3133 | int minus = 0; | |
3134 | int i = 0; | |
3135 | ||
3136 | /* Skip leading whitespace. */ | |
3137 | while (isspace (num[i])) | |
3138 | i++; | |
3139 | ||
3140 | /* Handle prefixes. */ | |
3141 | if (num[i] == '+') | |
3142 | i++; | |
3143 | else if (num[i] == '-') | |
3144 | { | |
3145 | minus = 1; | |
3146 | i++; | |
3147 | } | |
3148 | ||
3149 | if (base == 0 || base == 16) | |
3150 | { | |
3151 | if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X')) | |
3152 | { | |
3153 | i += 2; | |
3154 | if (base == 0) | |
3155 | base = 16; | |
3156 | } | |
3157 | } | |
3158 | ||
3159 | if (base == 0 && num[i] == '0') | |
3160 | base = 8; | |
3161 | ||
3162 | if (base == 0) | |
3163 | base = 10; | |
3164 | ||
3165 | if (base < 2 || base > 36) | |
3166 | { | |
3167 | errno = EINVAL; | |
3168 | return 0; | |
3169 | } | |
3170 | ||
3171 | result = high_part = 0; | |
3172 | for (; is_digit_in_base (num[i], base); i += 1) | |
3173 | { | |
3174 | result = result * base + digit_to_int (num[i]); | |
3175 | high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN); | |
3176 | result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1; | |
3177 | if (high_part > 0xff) | |
3178 | { | |
3179 | errno = ERANGE; | |
3180 | result = ~ (ULONGEST) 0; | |
3181 | high_part = 0; | |
3182 | minus = 0; | |
3183 | break; | |
3184 | } | |
3185 | } | |
3186 | ||
3187 | if (trailer != NULL) | |
3188 | *trailer = &num[i]; | |
3189 | ||
3190 | result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN); | |
3191 | if (minus) | |
3192 | return -result; | |
3193 | else | |
3194 | return result; | |
3195 | } | |
e1024ff1 DJ |
3196 | |
3197 | /* Simple, portable version of dirname that does not modify its | |
3198 | argument. */ | |
3199 | ||
3200 | char * | |
3201 | ldirname (const char *filename) | |
3202 | { | |
3203 | const char *base = lbasename (filename); | |
3204 | char *dirname; | |
3205 | ||
3206 | while (base > filename && IS_DIR_SEPARATOR (base[-1])) | |
3207 | --base; | |
3208 | ||
3209 | if (base == filename) | |
3210 | return NULL; | |
3211 | ||
3212 | dirname = xmalloc (base - filename + 2); | |
3213 | memcpy (dirname, filename, base - filename); | |
3214 | ||
3215 | /* On DOS based file systems, convert "d:foo" to "d:.", so that we | |
3216 | create "d:./bar" later instead of the (different) "d:/bar". */ | |
3217 | if (base - filename == 2 && IS_ABSOLUTE_PATH (base) | |
3218 | && !IS_DIR_SEPARATOR (filename[0])) | |
3219 | dirname[base++ - filename] = '.'; | |
3220 | ||
3221 | dirname[base - filename] = '\0'; | |
3222 | return dirname; | |
3223 | } |