Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Target-vector operations for controlling Unix child processes, for GDB. |
be4d1333 MS |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, |
3 | 2000, 2002 | |
b6ba6518 | 4 | Free Software Foundation, Inc. |
c906108c SS |
5 | Contributed by Cygnus Support. |
6 | ||
c5aa993b | 7 | ## Contains temporary hacks.. |
c906108c | 8 | |
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
13 | the Free Software Foundation; either version 2 of the License, or | |
14 | (at your option) any later version. | |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b JM |
21 | You should have received a copy of the GNU General Public License |
22 | along with this program; if not, write to the Free Software | |
23 | Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
25 | |
26 | #include "defs.h" | |
c5aa993b | 27 | #include "frame.h" /* required by inferior.h */ |
c906108c SS |
28 | #include "inferior.h" |
29 | #include "target.h" | |
30 | #include "gdbcore.h" | |
31 | #include "command.h" | |
32 | #include "gdb_stat.h" | |
33 | #include <signal.h> | |
34 | #include <sys/types.h> | |
35 | #include <fcntl.h> | |
36 | ||
03f2053f | 37 | #include "gdb_wait.h" |
c906108c | 38 | |
a14ed312 KB |
39 | extern struct symtab_and_line *child_enable_exception_callback (enum |
40 | exception_event_kind, | |
41 | int); | |
c906108c | 42 | |
a14ed312 KB |
43 | extern struct exception_event_record |
44 | *child_get_current_exception_event (void); | |
c906108c | 45 | |
a14ed312 | 46 | extern void _initialize_inftarg (void); |
c906108c | 47 | |
a14ed312 | 48 | static void child_prepare_to_store (void); |
c906108c SS |
49 | |
50 | #ifndef CHILD_WAIT | |
39f77062 | 51 | static ptid_t child_wait (ptid_t, struct target_waitstatus *); |
c906108c SS |
52 | #endif /* CHILD_WAIT */ |
53 | ||
54 | #if !defined(CHILD_POST_WAIT) | |
39f77062 | 55 | void child_post_wait (ptid_t, int); |
c906108c SS |
56 | #endif |
57 | ||
a14ed312 | 58 | static void child_open (char *, int); |
c906108c | 59 | |
a14ed312 | 60 | static void child_files_info (struct target_ops *); |
c906108c | 61 | |
a14ed312 | 62 | static void child_detach (char *, int); |
c906108c | 63 | |
a14ed312 | 64 | static void child_attach (char *, int); |
c906108c | 65 | |
c906108c | 66 | #if !defined(CHILD_POST_ATTACH) |
a14ed312 | 67 | extern void child_post_attach (int); |
c906108c SS |
68 | #endif |
69 | ||
a14ed312 | 70 | static void ptrace_me (void); |
c906108c | 71 | |
a14ed312 | 72 | static void ptrace_him (int); |
c906108c | 73 | |
a14ed312 | 74 | static void child_create_inferior (char *, char *, char **); |
c906108c | 75 | |
a14ed312 | 76 | static void child_mourn_inferior (void); |
c906108c | 77 | |
a14ed312 | 78 | static int child_can_run (void); |
c906108c | 79 | |
a14ed312 | 80 | static void child_stop (void); |
c906108c SS |
81 | |
82 | #ifndef CHILD_THREAD_ALIVE | |
39f77062 | 83 | int child_thread_alive (ptid_t); |
c906108c SS |
84 | #endif |
85 | ||
a14ed312 | 86 | static void init_child_ops (void); |
c906108c SS |
87 | |
88 | extern char **environ; | |
89 | ||
90 | struct target_ops child_ops; | |
91 | ||
92 | int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to | |
93 | be a runnable target. Used by targets | |
94 | that can sit atop inftarg, such as HPUX | |
95 | thread support. */ | |
96 | ||
97 | #ifndef CHILD_WAIT | |
98 | ||
c906108c SS |
99 | /* Wait for child to do something. Return pid of child, or -1 in case |
100 | of error; store status through argument pointer OURSTATUS. */ | |
101 | ||
39f77062 KB |
102 | static ptid_t |
103 | child_wait (ptid_t ptid, struct target_waitstatus *ourstatus) | |
c906108c SS |
104 | { |
105 | int save_errno; | |
106 | int status; | |
7a292a7a | 107 | char *execd_pathname = NULL; |
c5aa993b JM |
108 | int exit_status; |
109 | int related_pid; | |
110 | int syscall_id; | |
111 | enum target_waitkind kind; | |
39f77062 | 112 | int pid; |
c906108c | 113 | |
c5aa993b JM |
114 | do |
115 | { | |
116 | set_sigint_trap (); /* Causes SIGINT to be passed on to the | |
117 | attached process. */ | |
118 | set_sigio_trap (); | |
c906108c | 119 | |
39f77062 | 120 | pid = ptrace_wait (inferior_ptid, &status); |
c906108c | 121 | |
c5aa993b | 122 | save_errno = errno; |
c906108c | 123 | |
c5aa993b | 124 | clear_sigio_trap (); |
c906108c | 125 | |
c5aa993b | 126 | clear_sigint_trap (); |
c906108c | 127 | |
c5aa993b JM |
128 | if (pid == -1) |
129 | { | |
130 | if (save_errno == EINTR) | |
131 | continue; | |
c906108c | 132 | |
c5aa993b JM |
133 | fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n", |
134 | safe_strerror (save_errno)); | |
c906108c | 135 | |
c5aa993b JM |
136 | /* Claim it exited with unknown signal. */ |
137 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
138 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
39f77062 | 139 | return pid_to_ptid (-1); |
c5aa993b | 140 | } |
c906108c | 141 | |
c5aa993b | 142 | /* Did it exit? |
c906108c | 143 | */ |
c5aa993b JM |
144 | if (target_has_exited (pid, status, &exit_status)) |
145 | { | |
146 | /* ??rehrauer: For now, ignore this. */ | |
147 | continue; | |
148 | } | |
149 | ||
39f77062 | 150 | if (!target_thread_alive (pid_to_ptid (pid))) |
c5aa993b JM |
151 | { |
152 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
39f77062 | 153 | return pid_to_ptid (pid); |
c5aa993b | 154 | } |
47932f85 | 155 | } while (pid != PIDGET (inferior_ptid)); /* Some other child died or stopped */ |
c906108c SS |
156 | |
157 | store_waitstatus (ourstatus, status); | |
39f77062 | 158 | return pid_to_ptid (pid); |
c906108c SS |
159 | } |
160 | #endif /* CHILD_WAIT */ | |
161 | ||
162 | #if !defined(CHILD_POST_WAIT) | |
163 | void | |
39f77062 | 164 | child_post_wait (ptid_t ptid, int wait_status) |
c906108c SS |
165 | { |
166 | /* This version of Unix doesn't require a meaningful "post wait" | |
167 | operation. | |
c5aa993b | 168 | */ |
c906108c SS |
169 | } |
170 | #endif | |
c5aa993b | 171 | |
c906108c SS |
172 | |
173 | #ifndef CHILD_THREAD_ALIVE | |
174 | ||
175 | /* Check to see if the given thread is alive. | |
176 | ||
177 | FIXME: Is kill() ever the right way to do this? I doubt it, but | |
178 | for now we're going to try and be compatable with the old thread | |
179 | code. */ | |
180 | int | |
39f77062 | 181 | child_thread_alive (ptid_t ptid) |
c906108c | 182 | { |
39f77062 KB |
183 | pid_t pid = PIDGET (ptid); |
184 | ||
c906108c SS |
185 | return (kill (pid, 0) != -1); |
186 | } | |
187 | ||
188 | #endif | |
189 | ||
4c9ba7e0 DJ |
190 | /* Attach to process PID, then initialize for debugging it. */ |
191 | ||
c906108c | 192 | static void |
4c9ba7e0 | 193 | child_attach (char *args, int from_tty) |
c906108c SS |
194 | { |
195 | if (!args) | |
196 | error_no_arg ("process-id to attach"); | |
197 | ||
198 | #ifndef ATTACH_DETACH | |
199 | error ("Can't attach to a process on this machine."); | |
200 | #else | |
201 | { | |
202 | char *exec_file; | |
203 | int pid; | |
204 | char *dummy; | |
205 | ||
206 | dummy = args; | |
207 | pid = strtol (args, &dummy, 0); | |
208 | /* Some targets don't set errno on errors, grrr! */ | |
209 | if ((pid == 0) && (args == dummy)) | |
210 | error ("Illegal process-id: %s\n", args); | |
211 | ||
c5aa993b | 212 | if (pid == getpid ()) /* Trying to masturbate? */ |
c906108c SS |
213 | error ("I refuse to debug myself!"); |
214 | ||
215 | if (from_tty) | |
216 | { | |
217 | exec_file = (char *) get_exec_file (0); | |
218 | ||
4c9ba7e0 | 219 | if (exec_file) |
c906108c | 220 | printf_unfiltered ("Attaching to program: %s, %s\n", exec_file, |
39f77062 | 221 | target_pid_to_str (pid_to_ptid (pid))); |
c5aa993b | 222 | else |
39f77062 KB |
223 | printf_unfiltered ("Attaching to %s\n", |
224 | target_pid_to_str (pid_to_ptid (pid))); | |
c906108c SS |
225 | |
226 | gdb_flush (gdb_stdout); | |
227 | } | |
228 | ||
4c9ba7e0 | 229 | attach (pid); |
c906108c | 230 | |
39f77062 | 231 | inferior_ptid = pid_to_ptid (pid); |
c906108c SS |
232 | push_target (&child_ops); |
233 | } | |
c5aa993b | 234 | #endif /* ATTACH_DETACH */ |
c906108c SS |
235 | } |
236 | ||
c906108c SS |
237 | #if !defined(CHILD_POST_ATTACH) |
238 | void | |
fba45db2 | 239 | child_post_attach (int pid) |
c906108c SS |
240 | { |
241 | /* This version of Unix doesn't require a meaningful "post attach" | |
242 | operation by a debugger. */ | |
243 | } | |
244 | #endif | |
245 | ||
4c9ba7e0 DJ |
246 | /* Take a program previously attached to and detaches it. |
247 | The program resumes execution and will no longer stop | |
248 | on signals, etc. We'd better not have left any breakpoints | |
249 | in the program or it'll die when it hits one. For this | |
250 | to work, it may be necessary for the process to have been | |
251 | previously attached. It *might* work if the program was | |
252 | started via the normal ptrace (PTRACE_TRACEME). */ | |
c906108c SS |
253 | |
254 | static void | |
4c9ba7e0 | 255 | child_detach (char *args, int from_tty) |
c906108c SS |
256 | { |
257 | #ifdef ATTACH_DETACH | |
258 | { | |
259 | int siggnal = 0; | |
4c9ba7e0 | 260 | int pid = PIDGET (inferior_ptid); |
c906108c SS |
261 | |
262 | if (from_tty) | |
263 | { | |
264 | char *exec_file = get_exec_file (0); | |
265 | if (exec_file == 0) | |
266 | exec_file = ""; | |
4c9ba7e0 DJ |
267 | printf_unfiltered ("Detaching from program: %s, %s\n", exec_file, |
268 | target_pid_to_str (pid_to_ptid (pid))); | |
c906108c SS |
269 | gdb_flush (gdb_stdout); |
270 | } | |
271 | if (args) | |
272 | siggnal = atoi (args); | |
273 | ||
4c9ba7e0 DJ |
274 | detach (siggnal); |
275 | ||
276 | inferior_ptid = null_ptid; | |
277 | unpush_target (&child_ops); | |
c906108c SS |
278 | } |
279 | #else | |
280 | error ("This version of Unix does not support detaching a process."); | |
281 | #endif | |
282 | } | |
283 | ||
c906108c SS |
284 | /* Get ready to modify the registers array. On machines which store |
285 | individual registers, this doesn't need to do anything. On machines | |
286 | which store all the registers in one fell swoop, this makes sure | |
287 | that registers contains all the registers from the program being | |
288 | debugged. */ | |
289 | ||
290 | static void | |
fba45db2 | 291 | child_prepare_to_store (void) |
c906108c SS |
292 | { |
293 | #ifdef CHILD_PREPARE_TO_STORE | |
294 | CHILD_PREPARE_TO_STORE (); | |
295 | #endif | |
296 | } | |
297 | ||
298 | /* Print status information about what we're accessing. */ | |
299 | ||
300 | static void | |
fba45db2 | 301 | child_files_info (struct target_ops *ignore) |
c906108c SS |
302 | { |
303 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
39f77062 | 304 | attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid)); |
c906108c SS |
305 | } |
306 | ||
307 | /* ARGSUSED */ | |
308 | static void | |
fba45db2 | 309 | child_open (char *arg, int from_tty) |
c906108c SS |
310 | { |
311 | error ("Use the \"run\" command to start a Unix child process."); | |
312 | } | |
313 | ||
314 | /* Stub function which causes the inferior that runs it, to be ptrace-able | |
315 | by its parent process. */ | |
316 | ||
317 | static void | |
fba45db2 | 318 | ptrace_me (void) |
c906108c SS |
319 | { |
320 | /* "Trace me, Dr. Memory!" */ | |
321 | call_ptrace (0, 0, (PTRACE_ARG3_TYPE) 0, 0); | |
322 | } | |
323 | ||
324 | /* Stub function which causes the GDB that runs it, to start ptrace-ing | |
325 | the child process. */ | |
326 | ||
c5aa993b | 327 | static void |
fba45db2 | 328 | ptrace_him (int pid) |
c906108c SS |
329 | { |
330 | push_target (&child_ops); | |
331 | ||
332 | /* On some targets, there must be some explicit synchronization | |
333 | between the parent and child processes after the debugger | |
334 | forks, and before the child execs the debuggee program. This | |
335 | call basically gives permission for the child to exec. | |
c5aa993b | 336 | */ |
c906108c SS |
337 | |
338 | target_acknowledge_created_inferior (pid); | |
339 | ||
340 | /* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h, | |
341 | * and will be 1 or 2 depending on whether we're starting | |
342 | * without or with a shell. | |
343 | */ | |
344 | startup_inferior (START_INFERIOR_TRAPS_EXPECTED); | |
345 | ||
346 | /* On some targets, there must be some explicit actions taken after | |
347 | the inferior has been started up. | |
c5aa993b | 348 | */ |
39f77062 | 349 | target_post_startup_inferior (pid_to_ptid (pid)); |
c906108c SS |
350 | } |
351 | ||
39f77062 | 352 | /* Start an inferior Unix child process and sets inferior_ptid to its pid. |
c906108c SS |
353 | EXEC_FILE is the file to run. |
354 | ALLARGS is a string containing the arguments to the program. | |
355 | ENV is the environment vector to pass. Errors reported with error(). */ | |
356 | ||
357 | static void | |
fba45db2 | 358 | child_create_inferior (char *exec_file, char *allargs, char **env) |
c906108c | 359 | { |
c906108c | 360 | #ifdef HPUXHPPA |
c906108c SS |
361 | fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, pre_fork_inferior, NULL); |
362 | #else | |
c5aa993b | 363 | fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, NULL, NULL); |
c906108c SS |
364 | #endif |
365 | /* We are at the first instruction we care about. */ | |
366 | /* Pedal to the metal... */ | |
2acceee2 | 367 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); |
c906108c SS |
368 | } |
369 | ||
370 | #if !defined(CHILD_POST_STARTUP_INFERIOR) | |
371 | void | |
39f77062 | 372 | child_post_startup_inferior (ptid_t ptid) |
c906108c SS |
373 | { |
374 | /* This version of Unix doesn't require a meaningful "post startup inferior" | |
375 | operation by a debugger. | |
c5aa993b | 376 | */ |
c906108c SS |
377 | } |
378 | #endif | |
379 | ||
380 | #if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR) | |
381 | void | |
fba45db2 | 382 | child_acknowledge_created_inferior (int pid) |
c906108c SS |
383 | { |
384 | /* This version of Unix doesn't require a meaningful "acknowledge created inferior" | |
385 | operation by a debugger. | |
c5aa993b | 386 | */ |
c906108c SS |
387 | } |
388 | #endif | |
389 | ||
390 | ||
c906108c SS |
391 | #if !defined(CHILD_INSERT_FORK_CATCHPOINT) |
392 | int | |
fba45db2 | 393 | child_insert_fork_catchpoint (int pid) |
c906108c SS |
394 | { |
395 | /* This version of Unix doesn't support notification of fork events. */ | |
396 | return 0; | |
397 | } | |
398 | #endif | |
399 | ||
400 | #if !defined(CHILD_REMOVE_FORK_CATCHPOINT) | |
401 | int | |
fba45db2 | 402 | child_remove_fork_catchpoint (int pid) |
c906108c SS |
403 | { |
404 | /* This version of Unix doesn't support notification of fork events. */ | |
405 | return 0; | |
406 | } | |
407 | #endif | |
408 | ||
409 | #if !defined(CHILD_INSERT_VFORK_CATCHPOINT) | |
410 | int | |
fba45db2 | 411 | child_insert_vfork_catchpoint (int pid) |
c906108c SS |
412 | { |
413 | /* This version of Unix doesn't support notification of vfork events. */ | |
414 | return 0; | |
415 | } | |
416 | #endif | |
417 | ||
418 | #if !defined(CHILD_REMOVE_VFORK_CATCHPOINT) | |
419 | int | |
fba45db2 | 420 | child_remove_vfork_catchpoint (int pid) |
c906108c SS |
421 | { |
422 | /* This version of Unix doesn't support notification of vfork events. */ | |
423 | return 0; | |
424 | } | |
425 | #endif | |
426 | ||
6604731b DJ |
427 | #if !defined(CHILD_FOLLOW_FORK) |
428 | int | |
429 | child_follow_fork (int follow_child) | |
c906108c | 430 | { |
6604731b DJ |
431 | /* This version of Unix doesn't support following fork or vfork events. */ |
432 | return 0; | |
c906108c SS |
433 | } |
434 | #endif | |
435 | ||
436 | #if !defined(CHILD_INSERT_EXEC_CATCHPOINT) | |
437 | int | |
fba45db2 | 438 | child_insert_exec_catchpoint (int pid) |
c906108c SS |
439 | { |
440 | /* This version of Unix doesn't support notification of exec events. */ | |
441 | return 0; | |
442 | } | |
443 | #endif | |
444 | ||
445 | #if !defined(CHILD_REMOVE_EXEC_CATCHPOINT) | |
446 | int | |
fba45db2 | 447 | child_remove_exec_catchpoint (int pid) |
c906108c SS |
448 | { |
449 | /* This version of Unix doesn't support notification of exec events. */ | |
450 | return 0; | |
451 | } | |
452 | #endif | |
453 | ||
c906108c SS |
454 | #if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL) |
455 | int | |
fba45db2 | 456 | child_reported_exec_events_per_exec_call (void) |
c906108c SS |
457 | { |
458 | /* This version of Unix doesn't support notification of exec events. | |
c5aa993b | 459 | */ |
c906108c SS |
460 | return 1; |
461 | } | |
462 | #endif | |
463 | ||
c906108c SS |
464 | #if !defined(CHILD_HAS_EXITED) |
465 | int | |
fba45db2 | 466 | child_has_exited (int pid, int wait_status, int *exit_status) |
c906108c SS |
467 | { |
468 | if (WIFEXITED (wait_status)) | |
469 | { | |
470 | *exit_status = WEXITSTATUS (wait_status); | |
471 | return 1; | |
472 | } | |
473 | ||
474 | if (WIFSIGNALED (wait_status)) | |
475 | { | |
c5aa993b | 476 | *exit_status = 0; /* ?? Don't know what else to say here. */ |
c906108c SS |
477 | return 1; |
478 | } | |
479 | ||
480 | /* ?? Do we really need to consult the event state, too? Assume the | |
c5aa993b | 481 | wait_state alone suffices. |
c906108c SS |
482 | */ |
483 | return 0; | |
484 | } | |
485 | #endif | |
486 | ||
487 | ||
488 | static void | |
fba45db2 | 489 | child_mourn_inferior (void) |
c906108c | 490 | { |
c906108c | 491 | unpush_target (&child_ops); |
c906108c SS |
492 | generic_mourn_inferior (); |
493 | } | |
494 | ||
495 | static int | |
fba45db2 | 496 | child_can_run (void) |
c906108c SS |
497 | { |
498 | /* This variable is controlled by modules that sit atop inftarg that may layer | |
499 | their own process structure atop that provided here. hpux-thread.c does | |
500 | this because of the Hpux user-mode level thread model. */ | |
501 | ||
502 | return !child_suppress_run; | |
503 | } | |
504 | ||
505 | /* Send a SIGINT to the process group. This acts just like the user typed a | |
506 | ^C on the controlling terminal. | |
507 | ||
508 | XXX - This may not be correct for all systems. Some may want to use | |
509 | killpg() instead of kill (-pgrp). */ | |
510 | ||
511 | static void | |
fba45db2 | 512 | child_stop (void) |
c906108c SS |
513 | { |
514 | extern pid_t inferior_process_group; | |
515 | ||
516 | kill (-inferior_process_group, SIGINT); | |
517 | } | |
518 | ||
519 | #if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK) | |
520 | struct symtab_and_line * | |
fba45db2 | 521 | child_enable_exception_callback (enum exception_event_kind kind, int enable) |
c906108c SS |
522 | { |
523 | return (struct symtab_and_line *) NULL; | |
524 | } | |
525 | #endif | |
526 | ||
527 | #if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT) | |
528 | struct exception_event_record * | |
fba45db2 | 529 | child_get_current_exception_event (void) |
c906108c SS |
530 | { |
531 | return (struct exception_event_record *) NULL; | |
532 | } | |
533 | #endif | |
534 | ||
535 | ||
536 | #if !defined(CHILD_PID_TO_EXEC_FILE) | |
537 | char * | |
fba45db2 | 538 | child_pid_to_exec_file (int pid) |
c906108c SS |
539 | { |
540 | /* This version of Unix doesn't support translation of a process ID | |
541 | to the filename of the executable file. | |
c5aa993b | 542 | */ |
c906108c SS |
543 | return NULL; |
544 | } | |
545 | #endif | |
546 | ||
547 | char * | |
fba45db2 | 548 | child_core_file_to_sym_file (char *core) |
c906108c SS |
549 | { |
550 | /* The target stratum for a running executable need not support | |
551 | this operation. | |
c5aa993b | 552 | */ |
c906108c SS |
553 | return NULL; |
554 | } | |
c5aa993b | 555 | \f |
c906108c | 556 | |
ed9a39eb JM |
557 | #if !defined(CHILD_PID_TO_STR) |
558 | char * | |
39f77062 | 559 | child_pid_to_str (ptid_t ptid) |
ed9a39eb | 560 | { |
39f77062 | 561 | return normal_pid_to_str (ptid); |
ed9a39eb JM |
562 | } |
563 | #endif | |
c906108c | 564 | |
c906108c | 565 | static void |
fba45db2 | 566 | init_child_ops (void) |
c906108c SS |
567 | { |
568 | child_ops.to_shortname = "child"; | |
569 | child_ops.to_longname = "Unix child process"; | |
570 | child_ops.to_doc = "Unix child process (started by the \"run\" command)."; | |
571 | child_ops.to_open = child_open; | |
572 | child_ops.to_attach = child_attach; | |
573 | child_ops.to_post_attach = child_post_attach; | |
c906108c | 574 | child_ops.to_detach = child_detach; |
c906108c SS |
575 | child_ops.to_resume = child_resume; |
576 | child_ops.to_wait = child_wait; | |
577 | child_ops.to_post_wait = child_post_wait; | |
578 | child_ops.to_fetch_registers = fetch_inferior_registers; | |
579 | child_ops.to_store_registers = store_inferior_registers; | |
580 | child_ops.to_prepare_to_store = child_prepare_to_store; | |
581 | child_ops.to_xfer_memory = child_xfer_memory; | |
582 | child_ops.to_files_info = child_files_info; | |
583 | child_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
584 | child_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
585 | child_ops.to_terminal_init = terminal_init_inferior; | |
586 | child_ops.to_terminal_inferior = terminal_inferior; | |
587 | child_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
a790ad35 | 588 | child_ops.to_terminal_save_ours = terminal_save_ours; |
c906108c SS |
589 | child_ops.to_terminal_ours = terminal_ours; |
590 | child_ops.to_terminal_info = child_terminal_info; | |
591 | child_ops.to_kill = kill_inferior; | |
592 | child_ops.to_create_inferior = child_create_inferior; | |
593 | child_ops.to_post_startup_inferior = child_post_startup_inferior; | |
594 | child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior; | |
c906108c SS |
595 | child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint; |
596 | child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint; | |
597 | child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint; | |
598 | child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint; | |
6604731b | 599 | child_ops.to_follow_fork = child_follow_fork; |
c906108c SS |
600 | child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint; |
601 | child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint; | |
c906108c | 602 | child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call; |
c906108c SS |
603 | child_ops.to_has_exited = child_has_exited; |
604 | child_ops.to_mourn_inferior = child_mourn_inferior; | |
605 | child_ops.to_can_run = child_can_run; | |
606 | child_ops.to_thread_alive = child_thread_alive; | |
ed9a39eb | 607 | child_ops.to_pid_to_str = child_pid_to_str; |
c906108c SS |
608 | child_ops.to_stop = child_stop; |
609 | child_ops.to_enable_exception_callback = child_enable_exception_callback; | |
610 | child_ops.to_get_current_exception_event = child_get_current_exception_event; | |
611 | child_ops.to_pid_to_exec_file = child_pid_to_exec_file; | |
c906108c SS |
612 | child_ops.to_stratum = process_stratum; |
613 | child_ops.to_has_all_memory = 1; | |
614 | child_ops.to_has_memory = 1; | |
615 | child_ops.to_has_stack = 1; | |
616 | child_ops.to_has_registers = 1; | |
617 | child_ops.to_has_execution = 1; | |
618 | child_ops.to_magic = OPS_MAGIC; | |
619 | } | |
620 | ||
be4d1333 MS |
621 | /* Take over the 'find_mapped_memory' vector from inftarg.c. */ |
622 | extern void | |
623 | inftarg_set_find_memory_regions (int (*func) (int (*) (CORE_ADDR, | |
624 | unsigned long, | |
625 | int, int, int, | |
626 | void *), | |
627 | void *)) | |
628 | { | |
629 | child_ops.to_find_memory_regions = func; | |
630 | } | |
631 | ||
632 | /* Take over the 'make_corefile_notes' vector from inftarg.c. */ | |
633 | extern void | |
634 | inftarg_set_make_corefile_notes (char * (*func) (bfd *, int *)) | |
635 | { | |
636 | child_ops.to_make_corefile_notes = func; | |
637 | } | |
638 | ||
c906108c | 639 | void |
fba45db2 | 640 | _initialize_inftarg (void) |
c906108c SS |
641 | { |
642 | #ifdef HAVE_OPTIONAL_PROC_FS | |
643 | char procname[32]; | |
644 | int fd; | |
645 | ||
646 | /* If we have an optional /proc filesystem (e.g. under OSF/1), | |
647 | don't add ptrace support if we can access the running GDB via /proc. */ | |
648 | #ifndef PROC_NAME_FMT | |
649 | #define PROC_NAME_FMT "/proc/%05d" | |
650 | #endif | |
651 | sprintf (procname, PROC_NAME_FMT, getpid ()); | |
652 | if ((fd = open (procname, O_RDONLY)) >= 0) | |
653 | { | |
654 | close (fd); | |
655 | return; | |
656 | } | |
657 | #endif | |
658 | ||
659 | init_child_ops (); | |
660 | add_target (&child_ops); | |
661 | } |