Commit | Line | Data |
---|---|---|
2c4a536d | 1 | /* Low-level child interface to ptrace. |
5bf970f9 AC |
2 | |
3 | Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, | |
4 | 1998, 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #include "defs.h" | |
5bf970f9 | 24 | #include "command.h" |
2c4a536d MK |
25 | #include "inferior.h" |
26 | #include "inflow.h" | |
5bf970f9 | 27 | #include "gdbcore.h" |
2c4a536d | 28 | #include "observer.h" |
5bf970f9 | 29 | |
2c4a536d MK |
30 | #include "gdb_string.h" |
31 | #include "gdb_ptrace.h" | |
34a17005 | 32 | #include "gdb_wait.h" |
5bf970f9 AC |
33 | #include <signal.h> |
34 | ||
2c4a536d MK |
35 | #include "inf-child.h" |
36 | ||
37 | /* HACK: Save the ptrace ops returned by inf_ptrace_target. */ | |
5bf970f9 AC |
38 | static struct target_ops *ptrace_ops_hack; |
39 | ||
40 | static void | |
41 | inf_ptrace_kill_inferior (void) | |
42 | { | |
43 | int status; | |
44 | int pid = PIDGET (inferior_ptid); | |
45 | ||
46 | if (pid == 0) | |
47 | return; | |
48 | ||
49 | /* This once used to call "kill" to kill the inferior just in case | |
50 | the inferior was still running. As others have noted in the past | |
51 | (kingdon) there shouldn't be any way to get here if the inferior | |
f6ffd89b | 52 | is still running -- else there's a major problem elsewere in GDB |
5bf970f9 AC |
53 | and it needs to be fixed. |
54 | ||
f6ffd89b MK |
55 | The kill call causes problems under HP-UX 10, so it's been |
56 | removed; if this causes problems we'll deal with them as they | |
57 | arise. */ | |
62ece330 MK |
58 | ptrace (PT_KILL, pid, (PTRACE_TYPE_ARG3) 0, 0); |
59 | wait (&status); | |
5bf970f9 AC |
60 | target_mourn_inferior (); |
61 | } | |
62 | ||
63 | /* Resume execution of the inferior process. If STEP is nonzero, | |
64 | single-step it. If SIGNAL is nonzero, give it that signal. */ | |
65 | ||
66 | static void | |
67 | inf_ptrace_resume (ptid_t ptid, int step, enum target_signal signal) | |
68 | { | |
69 | int request = PT_CONTINUE; | |
70 | int pid = PIDGET (ptid); | |
71 | ||
72 | if (pid == -1) | |
73 | /* Resume all threads. */ | |
74 | /* I think this only gets used in the non-threaded case, where | |
75 | "resume all threads" and "resume inferior_ptid" are the | |
76 | same. */ | |
77 | pid = PIDGET (inferior_ptid); | |
78 | ||
79 | if (step) | |
80 | { | |
81 | /* If this system does not support PT_STEP, a higher level | |
82 | function will have called single_step() to transmute the step | |
83 | request into a continue request (by setting breakpoints on | |
84 | all possible successor instructions), so we don't have to | |
85 | worry about that here. */ | |
86 | request = PT_STEP; | |
87 | } | |
88 | ||
89 | /* An address of (PTRACE_TYPE_ARG3)1 tells ptrace to continue from | |
90 | where it was. If GDB wanted it to start some other way, we have | |
91 | already written a new PC value to the child. */ | |
92 | errno = 0; | |
93 | ptrace (request, pid, (PTRACE_TYPE_ARG3) 1, target_signal_to_host (signal)); | |
94 | if (errno != 0) | |
95 | perror_with_name ("ptrace"); | |
96 | } | |
97 | ||
5bf970f9 AC |
98 | /* Wait for child to do something. Return pid of child, or -1 in case |
99 | of error; store status through argument pointer OURSTATUS. */ | |
100 | ||
101 | static ptid_t | |
102 | inf_ptrace_wait (ptid_t ptid, struct target_waitstatus *ourstatus) | |
103 | { | |
104 | int save_errno; | |
105 | int status; | |
106 | char *execd_pathname = NULL; | |
107 | int exit_status; | |
108 | int related_pid; | |
109 | int syscall_id; | |
110 | enum target_waitkind kind; | |
111 | int pid; | |
112 | ||
113 | do | |
114 | { | |
115 | set_sigint_trap (); /* Causes SIGINT to be passed on to the | |
116 | attached process. */ | |
117 | set_sigio_trap (); | |
118 | ||
62ece330 | 119 | pid = wait (&status); |
5bf970f9 AC |
120 | |
121 | save_errno = errno; | |
122 | ||
123 | clear_sigio_trap (); | |
124 | ||
125 | clear_sigint_trap (); | |
126 | ||
127 | if (pid == -1) | |
128 | { | |
129 | if (save_errno == EINTR) | |
130 | continue; | |
131 | ||
132 | fprintf_unfiltered (gdb_stderr, | |
133 | "Child process unexpectedly missing: %s.\n", | |
134 | safe_strerror (save_errno)); | |
135 | ||
136 | /* Claim it exited with unknown signal. */ | |
137 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
138 | ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN; | |
139 | return pid_to_ptid (-1); | |
140 | } | |
141 | ||
f6ffd89b | 142 | /* Did it exit? */ |
5bf970f9 AC |
143 | if (target_has_exited (pid, status, &exit_status)) |
144 | { | |
145 | /* ??rehrauer: For now, ignore this. */ | |
146 | continue; | |
147 | } | |
148 | ||
149 | if (!target_thread_alive (pid_to_ptid (pid))) | |
150 | { | |
151 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
152 | return pid_to_ptid (pid); | |
153 | } | |
154 | } | |
f6ffd89b MK |
155 | while (pid != PIDGET (inferior_ptid)); /* Some other child died or |
156 | stopped. */ | |
5bf970f9 AC |
157 | |
158 | store_waitstatus (ourstatus, status); | |
159 | return pid_to_ptid (pid); | |
160 | } | |
161 | ||
5bf970f9 AC |
162 | /* Check to see if the given thread is alive. |
163 | ||
164 | FIXME: Is kill() ever the right way to do this? I doubt it, but | |
165 | for now we're going to try and be compatable with the old thread | |
166 | code. */ | |
167 | ||
168 | static int | |
169 | inf_ptrace_thread_alive (ptid_t ptid) | |
170 | { | |
171 | pid_t pid = PIDGET (ptid); | |
172 | ||
173 | return (kill (pid, 0) != -1); | |
174 | } | |
175 | ||
176 | /* Attach to process PID, then initialize for debugging it. */ | |
177 | ||
178 | static void | |
179 | inf_ptrace_attach (char *args, int from_tty) | |
180 | { | |
181 | char *exec_file; | |
182 | int pid; | |
183 | char *dummy; | |
184 | ||
185 | if (!args) | |
186 | error_no_arg ("process-id to attach"); | |
187 | ||
188 | dummy = args; | |
189 | pid = strtol (args, &dummy, 0); | |
f6ffd89b | 190 | /* Some targets don't set errno on errors, grrr! */ |
6e1e94ea | 191 | if (pid == 0 && args == dummy) |
5bf970f9 AC |
192 | error ("Illegal process-id: %s\n", args); |
193 | ||
f6ffd89b | 194 | if (pid == getpid ()) /* Trying to masturbate? */ |
5bf970f9 AC |
195 | error ("I refuse to debug myself!"); |
196 | ||
197 | if (from_tty) | |
198 | { | |
199 | exec_file = (char *) get_exec_file (0); | |
200 | ||
201 | if (exec_file) | |
202 | printf_unfiltered ("Attaching to program: %s, %s\n", exec_file, | |
203 | target_pid_to_str (pid_to_ptid (pid))); | |
204 | else | |
205 | printf_unfiltered ("Attaching to %s\n", | |
206 | target_pid_to_str (pid_to_ptid (pid))); | |
207 | ||
208 | gdb_flush (gdb_stdout); | |
209 | } | |
210 | ||
6e1e94ea MK |
211 | #ifdef PT_ATTACH |
212 | errno = 0; | |
213 | ptrace (PT_ATTACH, pid, (PTRACE_TYPE_ARG3) 0, 0); | |
214 | if (errno != 0) | |
215 | perror_with_name ("ptrace"); | |
216 | attach_flag = 1; | |
217 | #else | |
218 | error ("This system does not support attaching to a process"); | |
219 | #endif | |
5bf970f9 AC |
220 | |
221 | inferior_ptid = pid_to_ptid (pid); | |
222 | push_target (ptrace_ops_hack); | |
12b8a2cb DJ |
223 | |
224 | /* Do this first, before anything has had a chance to query the | |
225 | inferior's symbol table or similar. */ | |
226 | observer_notify_inferior_created (¤t_target, from_tty); | |
5bf970f9 AC |
227 | } |
228 | ||
229 | static void | |
230 | inf_ptrace_post_attach (int pid) | |
231 | { | |
232 | /* This version of Unix doesn't require a meaningful "post attach" | |
233 | operation by a debugger. */ | |
234 | } | |
235 | ||
236 | /* Take a program previously attached to and detaches it. The program | |
237 | resumes execution and will no longer stop on signals, etc. We'd | |
238 | better not have left any breakpoints in the program or it'll die | |
239 | when it hits one. For this to work, it may be necessary for the | |
240 | process to have been previously attached. It *might* work if the | |
241 | program was started via the normal ptrace (PTRACE_TRACEME). */ | |
242 | ||
243 | static void | |
244 | inf_ptrace_detach (char *args, int from_tty) | |
245 | { | |
6e1e94ea | 246 | int sig = 0; |
5bf970f9 AC |
247 | int pid = PIDGET (inferior_ptid); |
248 | ||
249 | if (from_tty) | |
250 | { | |
251 | char *exec_file = get_exec_file (0); | |
252 | if (exec_file == 0) | |
253 | exec_file = ""; | |
254 | printf_unfiltered ("Detaching from program: %s, %s\n", exec_file, | |
255 | target_pid_to_str (pid_to_ptid (pid))); | |
256 | gdb_flush (gdb_stdout); | |
257 | } | |
258 | if (args) | |
6e1e94ea | 259 | sig = atoi (args); |
5bf970f9 | 260 | |
6e1e94ea MK |
261 | #ifdef PT_DETACH |
262 | errno = 0; | |
263 | ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3) 1, sig); | |
264 | if (errno != 0) | |
265 | perror_with_name ("ptrace"); | |
266 | attach_flag = 0; | |
267 | #else | |
268 | error ("This system does not support detaching from a process"); | |
269 | #endif | |
5bf970f9 AC |
270 | |
271 | inferior_ptid = null_ptid; | |
272 | unpush_target (ptrace_ops_hack); | |
273 | } | |
274 | ||
275 | /* Get ready to modify the registers array. On machines which store | |
276 | individual registers, this doesn't need to do anything. On | |
277 | machines which store all the registers in one fell swoop, this | |
278 | makes sure that registers contains all the registers from the | |
279 | program being debugged. */ | |
280 | ||
281 | static void | |
282 | inf_ptrace_prepare_to_store (void) | |
283 | { | |
284 | } | |
285 | ||
286 | /* Print status information about what we're accessing. */ | |
287 | ||
288 | static void | |
289 | inf_ptrace_files_info (struct target_ops *ignore) | |
290 | { | |
291 | printf_unfiltered ("\tUsing the running image of %s %s.\n", | |
292 | attach_flag ? "attached" : "child", | |
293 | target_pid_to_str (inferior_ptid)); | |
294 | } | |
295 | ||
296 | static void | |
297 | inf_ptrace_open (char *arg, int from_tty) | |
298 | { | |
299 | error ("Use the \"run\" command to start a Unix child process."); | |
300 | } | |
301 | ||
302 | /* Stub function which causes the inferior that runs it, to be ptrace-able | |
303 | by its parent process. */ | |
304 | ||
305 | static void | |
306 | inf_ptrace_me (void) | |
307 | { | |
f6ffd89b | 308 | /* "Trace me, Dr. Memory!" */ |
62ece330 | 309 | ptrace (0, 0, (PTRACE_TYPE_ARG3) 0, 0); |
5bf970f9 AC |
310 | } |
311 | ||
312 | /* Stub function which causes the GDB that runs it, to start ptrace-ing | |
313 | the child process. */ | |
314 | ||
315 | static void | |
316 | inf_ptrace_him (int pid) | |
317 | { | |
318 | push_target (ptrace_ops_hack); | |
319 | ||
320 | /* On some targets, there must be some explicit synchronization | |
321 | between the parent and child processes after the debugger | |
322 | forks, and before the child execs the debuggee program. This | |
f6ffd89b | 323 | call basically gives permission for the child to exec. */ |
5bf970f9 AC |
324 | |
325 | target_acknowledge_created_inferior (pid); | |
326 | ||
f6ffd89b MK |
327 | /* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h, and will |
328 | be 1 or 2 depending on whether we're starting without or with a | |
329 | shell. */ | |
5bf970f9 AC |
330 | startup_inferior (START_INFERIOR_TRAPS_EXPECTED); |
331 | ||
332 | /* On some targets, there must be some explicit actions taken after | |
f6ffd89b | 333 | the inferior has been started up. */ |
5bf970f9 AC |
334 | target_post_startup_inferior (pid_to_ptid (pid)); |
335 | } | |
336 | ||
337 | /* Start an inferior Unix child process and sets inferior_ptid to its | |
338 | pid. EXEC_FILE is the file to run. ALLARGS is a string containing | |
339 | the arguments to the program. ENV is the environment vector to | |
340 | pass. Errors reported with error(). */ | |
341 | ||
342 | static void | |
343 | inf_ptrace_create_inferior (char *exec_file, char *allargs, char **env, | |
344 | int from_tty) | |
345 | { | |
346 | fork_inferior (exec_file, allargs, env, inf_ptrace_me, inf_ptrace_him, | |
347 | NULL, NULL); | |
348 | /* We are at the first instruction we care about. */ | |
349 | observer_notify_inferior_created (¤t_target, from_tty); | |
f6ffd89b | 350 | /* Pedal to the metal... */ |
5bf970f9 AC |
351 | proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); |
352 | } | |
353 | ||
354 | static void | |
355 | inf_ptrace_post_startup_inferior (ptid_t ptid) | |
356 | { | |
f6ffd89b MK |
357 | /* This version of Unix doesn't require a meaningful "post startup |
358 | inferior" operation by a debugger. */ | |
5bf970f9 AC |
359 | } |
360 | ||
361 | static void | |
362 | inf_ptrace_acknowledge_created_inferior (int pid) | |
363 | { | |
f6ffd89b MK |
364 | /* This version of Unix doesn't require a meaningful "acknowledge |
365 | created inferior" operation by a debugger. */ | |
5bf970f9 AC |
366 | } |
367 | ||
368 | static int | |
369 | inf_ptrace_insert_fork_catchpoint (int pid) | |
370 | { | |
371 | /* This version of Unix doesn't support notification of fork events. */ | |
372 | return 0; | |
373 | } | |
374 | ||
375 | static int | |
376 | inf_ptrace_remove_fork_catchpoint (int pid) | |
377 | { | |
378 | /* This version of Unix doesn't support notification of fork events. */ | |
379 | return 0; | |
380 | } | |
381 | ||
382 | static int | |
383 | inf_ptrace_insert_vfork_catchpoint (int pid) | |
384 | { | |
385 | /* This version of Unix doesn't support notification of vfork events. */ | |
386 | return 0; | |
387 | } | |
388 | ||
389 | static int | |
390 | inf_ptrace_remove_vfork_catchpoint (int pid) | |
391 | { | |
392 | /* This version of Unix doesn't support notification of vfork events. */ | |
393 | return 0; | |
394 | } | |
395 | ||
396 | static int | |
397 | inf_ptrace_follow_fork (int follow_child) | |
398 | { | |
399 | /* This version of Unix doesn't support following fork or vfork events. */ | |
400 | return 0; | |
401 | } | |
402 | ||
403 | static int | |
404 | inf_ptrace_insert_exec_catchpoint (int pid) | |
405 | { | |
406 | /* This version of Unix doesn't support notification of exec events. */ | |
407 | return 0; | |
408 | } | |
409 | ||
410 | static int | |
411 | inf_ptrace_remove_exec_catchpoint (int pid) | |
412 | { | |
413 | /* This version of Unix doesn't support notification of exec events. */ | |
414 | return 0; | |
415 | } | |
416 | ||
417 | static int | |
418 | inf_ptrace_reported_exec_events_per_exec_call (void) | |
419 | { | |
f6ffd89b | 420 | /* This version of Unix doesn't support notification of exec events. */ |
5bf970f9 AC |
421 | return 1; |
422 | } | |
423 | ||
424 | static int | |
425 | inf_ptrace_has_exited (int pid, int wait_status, int *exit_status) | |
426 | { | |
427 | if (WIFEXITED (wait_status)) | |
428 | { | |
429 | *exit_status = WEXITSTATUS (wait_status); | |
430 | return 1; | |
431 | } | |
432 | ||
433 | if (WIFSIGNALED (wait_status)) | |
434 | { | |
435 | *exit_status = 0; /* ?? Don't know what else to say here. */ | |
436 | return 1; | |
437 | } | |
438 | ||
f6ffd89b MK |
439 | /* ??? Do we really need to consult the event state, too? |
440 | Assume the wait_state alone suffices. */ | |
5bf970f9 AC |
441 | return 0; |
442 | } | |
443 | ||
444 | static void | |
445 | inf_ptrace_mourn_inferior (void) | |
446 | { | |
447 | unpush_target (ptrace_ops_hack); | |
448 | generic_mourn_inferior (); | |
449 | } | |
450 | ||
451 | static int | |
452 | inf_ptrace_can_run (void) | |
453 | { | |
454 | return 1; | |
455 | } | |
456 | ||
457 | /* Send a SIGINT to the process group. This acts just like the user | |
458 | typed a ^C on the controlling terminal. | |
459 | ||
f6ffd89b MK |
460 | FIXME: This may not be correct for all systems. Some may want to |
461 | use killpg() instead of kill (-pgrp). */ | |
5bf970f9 AC |
462 | |
463 | static void | |
464 | inf_ptrace_stop (void) | |
465 | { | |
466 | kill (-inferior_process_group, SIGINT); | |
467 | } | |
468 | ||
469 | /* Perform a partial transfer to/from the specified object. For | |
470 | memory transfers, fall back to the old memory xfer functions. */ | |
471 | ||
472 | static LONGEST | |
473 | inf_ptrace_xfer_partial (struct target_ops *ops, enum target_object object, | |
474 | const char *annex, void *readbuf, | |
475 | const void *writebuf, ULONGEST offset, LONGEST len) | |
476 | { | |
477 | switch (object) | |
478 | { | |
479 | case TARGET_OBJECT_MEMORY: | |
f929a579 AC |
480 | #ifdef PT_IO |
481 | /* OpenBSD 3.1, NetBSD 1.6 and FreeBSD 5.0 have a new PT_IO | |
482 | request that promises to be much more efficient in reading | |
483 | and writing data in the traced process's address space. */ | |
484 | { | |
485 | struct ptrace_io_desc piod; | |
486 | ||
487 | /* NOTE: We assume that there are no distinct address spaces | |
488 | for instruction and data. */ | |
489 | piod.piod_op = writebuf ? PIOD_WRITE_D : PIOD_READ_D; | |
490 | piod.piod_addr = writebuf ? (void *) writebuf : readbuf; | |
491 | piod.piod_offs = (void *) (long) offset; | |
492 | piod.piod_len = len; | |
493 | ||
494 | errno = 0; | |
495 | if (ptrace (PT_IO, PIDGET (inferior_ptid), (caddr_t) &piod, 0) == 0) | |
496 | /* Return the actual number of bytes read or written. */ | |
497 | return piod.piod_len; | |
498 | /* If the PT_IO request is somehow not supported, fallback on | |
499 | using PT_WRITE_D/PT_READ_D. Otherwise we will return zero | |
500 | to indicate failure. */ | |
501 | if (errno != EINVAL) | |
502 | return 0; | |
503 | } | |
504 | #endif | |
505 | { | |
506 | union | |
507 | { | |
508 | PTRACE_TYPE_RET word; | |
509 | unsigned char byte[sizeof (PTRACE_TYPE_RET)]; | |
510 | } buffer; | |
511 | ULONGEST rounded_offset; | |
512 | LONGEST partial_len; | |
513 | ||
cb85a953 AC |
514 | /* Round the start offset down to the next long word |
515 | boundary. */ | |
f929a579 AC |
516 | rounded_offset = offset & -(ULONGEST) sizeof (PTRACE_TYPE_RET); |
517 | ||
cb85a953 AC |
518 | /* Since ptrace will transfer a single word starting at that |
519 | rounded_offset the partial_len needs to be adjusted down to | |
520 | that (remember this function only does a single transfer). | |
521 | Should the required length be even less, adjust it down | |
522 | again. */ | |
523 | partial_len = (rounded_offset + sizeof (PTRACE_TYPE_RET)) - offset; | |
524 | if (partial_len > len) | |
f929a579 AC |
525 | partial_len = len; |
526 | ||
527 | if (writebuf) | |
528 | { | |
cb85a953 AC |
529 | /* If OFFSET:PARTIAL_LEN is smaller than |
530 | ROUNDED_OFFSET:WORDSIZE then a read/modify write will | |
531 | be needed. Read in the entire word. */ | |
f929a579 | 532 | if (rounded_offset < offset |
cb85a953 AC |
533 | || (offset + partial_len |
534 | < rounded_offset + sizeof (PTRACE_TYPE_RET))) | |
f929a579 AC |
535 | /* Need part of initial word -- fetch it. */ |
536 | buffer.word = ptrace (PT_READ_I, PIDGET (inferior_ptid), | |
537 | (PTRACE_TYPE_ARG3) (long) rounded_offset, | |
538 | 0); | |
539 | ||
540 | /* Copy data to be written over corresponding part of | |
541 | buffer. */ | |
f6ffd89b MK |
542 | memcpy (buffer.byte + (offset - rounded_offset), |
543 | writebuf, partial_len); | |
f929a579 AC |
544 | |
545 | errno = 0; | |
546 | ptrace (PT_WRITE_D, PIDGET (inferior_ptid), | |
547 | (PTRACE_TYPE_ARG3) (long) rounded_offset, | |
cb85a953 | 548 | buffer.word); |
f929a579 AC |
549 | if (errno) |
550 | { | |
551 | /* Using the appropriate one (I or D) is necessary for | |
552 | Gould NP1, at least. */ | |
553 | errno = 0; | |
554 | ptrace (PT_WRITE_I, PIDGET (inferior_ptid), | |
555 | (PTRACE_TYPE_ARG3) (long) rounded_offset, | |
cb85a953 | 556 | buffer.word); |
f929a579 AC |
557 | if (errno) |
558 | return 0; | |
559 | } | |
560 | } | |
561 | if (readbuf) | |
562 | { | |
563 | errno = 0; | |
564 | buffer.word = ptrace (PT_READ_I, PIDGET (inferior_ptid), | |
565 | (PTRACE_TYPE_ARG3) (long) rounded_offset, 0); | |
566 | if (errno) | |
567 | return 0; | |
568 | /* Copy appropriate bytes out of the buffer. */ | |
569 | memcpy (readbuf, buffer.byte + (offset - rounded_offset), | |
570 | partial_len); | |
571 | } | |
572 | return partial_len; | |
573 | } | |
5bf970f9 AC |
574 | |
575 | case TARGET_OBJECT_UNWIND_TABLE: | |
576 | return -1; | |
577 | ||
578 | case TARGET_OBJECT_AUXV: | |
579 | return -1; | |
580 | ||
581 | case TARGET_OBJECT_WCOOKIE: | |
582 | return -1; | |
583 | ||
584 | default: | |
585 | return -1; | |
586 | } | |
587 | } | |
588 | ||
589 | static char * | |
590 | inf_ptrace_pid_to_str (ptid_t ptid) | |
591 | { | |
592 | return normal_pid_to_str (ptid); | |
593 | } | |
594 | ||
595 | struct target_ops * | |
596 | inf_ptrace_target (void) | |
597 | { | |
598 | struct target_ops *t = inf_child_target (); | |
599 | t->to_open = inf_ptrace_open; | |
600 | t->to_attach = inf_ptrace_attach; | |
601 | t->to_post_attach = inf_ptrace_post_attach; | |
602 | t->to_detach = inf_ptrace_detach; | |
603 | t->to_resume = inf_ptrace_resume; | |
604 | t->to_wait = inf_ptrace_wait; | |
5bf970f9 | 605 | t->to_prepare_to_store = inf_ptrace_prepare_to_store; |
5bf970f9 AC |
606 | t->to_xfer_partial = inf_ptrace_xfer_partial; |
607 | t->to_files_info = inf_ptrace_files_info; | |
608 | t->to_kill = inf_ptrace_kill_inferior; | |
609 | t->to_create_inferior = inf_ptrace_create_inferior; | |
610 | t->to_post_startup_inferior = inf_ptrace_post_startup_inferior; | |
611 | t->to_acknowledge_created_inferior = | |
612 | inf_ptrace_acknowledge_created_inferior; | |
613 | t->to_insert_fork_catchpoint = inf_ptrace_insert_fork_catchpoint; | |
614 | t->to_remove_fork_catchpoint = inf_ptrace_remove_fork_catchpoint; | |
615 | t->to_insert_vfork_catchpoint = inf_ptrace_insert_vfork_catchpoint; | |
616 | t->to_remove_vfork_catchpoint = inf_ptrace_remove_vfork_catchpoint; | |
617 | t->to_follow_fork = inf_ptrace_follow_fork; | |
618 | t->to_insert_exec_catchpoint = inf_ptrace_insert_exec_catchpoint; | |
619 | t->to_remove_exec_catchpoint = inf_ptrace_remove_exec_catchpoint; | |
620 | t->to_reported_exec_events_per_exec_call = | |
621 | inf_ptrace_reported_exec_events_per_exec_call; | |
622 | t->to_has_exited = inf_ptrace_has_exited; | |
623 | t->to_mourn_inferior = inf_ptrace_mourn_inferior; | |
624 | t->to_can_run = inf_ptrace_can_run; | |
625 | t->to_thread_alive = inf_ptrace_thread_alive; | |
626 | t->to_pid_to_str = inf_ptrace_pid_to_str; | |
627 | t->to_stop = inf_ptrace_stop; | |
628 | t->to_stratum = process_stratum; | |
629 | t->to_has_all_memory = 1; | |
630 | t->to_has_memory = 1; | |
631 | t->to_has_stack = 1; | |
632 | t->to_has_registers = 1; | |
633 | t->to_has_execution = 1; | |
634 | t->to_magic = OPS_MAGIC; | |
635 | ptrace_ops_hack = t; | |
636 | return t; | |
637 | } |