Commit | Line | Data |
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61bb466e | 1 | /* Machine independent support for QNX Neutrino /proc (process file system) |
0df8b418 | 2 | for GDB. Written by Colin Burgess at QNX Software Systems Limited. |
61bb466e | 3 | |
32d0add0 | 4 | Copyright (C) 2003-2015 Free Software Foundation, Inc. |
61bb466e KW |
5 | |
6 | Contributed by QNX Software Systems Ltd. | |
7 | ||
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
61bb466e KW |
13 | (at your option) any later version. |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
61bb466e KW |
22 | |
23 | #include "defs.h" | |
24 | ||
25 | #include <fcntl.h> | |
26 | #include <spawn.h> | |
27 | #include <sys/debug.h> | |
28 | #include <sys/procfs.h> | |
29 | #include <sys/neutrino.h> | |
30 | #include <sys/syspage.h> | |
2978b111 | 31 | #include <dirent.h> |
61bb466e | 32 | #include <sys/netmgr.h> |
61bb466e KW |
33 | #include "gdbcore.h" |
34 | #include "inferior.h" | |
35 | #include "target.h" | |
36 | #include "objfiles.h" | |
37 | #include "gdbthread.h" | |
38 | #include "nto-tdep.h" | |
39 | #include "command.h" | |
40 | #include "regcache.h" | |
5ea03926 | 41 | #include "solib.h" |
ee8e9165 | 42 | #include "inf-child.h" |
774ee6d2 | 43 | #include "common/filestuff.h" |
61bb466e KW |
44 | |
45 | #define NULL_PID 0 | |
46 | #define _DEBUG_FLAG_TRACE (_DEBUG_FLAG_TRACE_EXEC|_DEBUG_FLAG_TRACE_RD|\ | |
47 | _DEBUG_FLAG_TRACE_WR|_DEBUG_FLAG_TRACE_MODIFY) | |
48 | ||
61bb466e KW |
49 | int ctl_fd; |
50 | ||
a40805d4 | 51 | static sighandler_t ofunc; |
61bb466e KW |
52 | |
53 | static procfs_run run; | |
54 | ||
61bb466e KW |
55 | static ptid_t do_attach (ptid_t ptid); |
56 | ||
5461485a | 57 | static int procfs_can_use_hw_breakpoint (struct target_ops *self, |
774ee6d2 | 58 | enum bptype, int, int); |
61bb466e | 59 | |
7bb99c53 | 60 | static int procfs_insert_hw_watchpoint (struct target_ops *self, |
f486487f SM |
61 | CORE_ADDR addr, int len, |
62 | enum target_hw_bp_type type, | |
a8f42b45 | 63 | struct expression *cond); |
61bb466e | 64 | |
11b5219a | 65 | static int procfs_remove_hw_watchpoint (struct target_ops *self, |
f486487f SM |
66 | CORE_ADDR addr, int len, |
67 | enum target_hw_bp_type type, | |
a8f42b45 | 68 | struct expression *cond); |
61bb466e | 69 | |
6a109b6b | 70 | static int procfs_stopped_by_watchpoint (struct target_ops *ops); |
61bb466e | 71 | |
6a3cb8e8 | 72 | /* These two globals are only ever set in procfs_open_1, but are |
61bb466e KW |
73 | referenced elsewhere. 'nto_procfs_node' is a flag used to say |
74 | whether we are local, or we should get the current node descriptor | |
75 | for the remote QNX node. */ | |
609c3040 | 76 | static char *nodestr; |
61bb466e KW |
77 | static unsigned nto_procfs_node = ND_LOCAL_NODE; |
78 | ||
79 | /* Return the current QNX Node, or error out. This is a simple | |
80 | wrapper for the netmgr_strtond() function. The reason this | |
81 | is required is because QNX node descriptors are transient so | |
82 | we have to re-acquire them every time. */ | |
83 | static unsigned | |
d737fd7f | 84 | nto_node (void) |
61bb466e KW |
85 | { |
86 | unsigned node; | |
87 | ||
609c3040 AR |
88 | if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 |
89 | || nodestr == NULL) | |
61bb466e KW |
90 | return ND_LOCAL_NODE; |
91 | ||
609c3040 | 92 | node = netmgr_strtond (nodestr, 0); |
61bb466e | 93 | if (node == -1) |
8a3fe4f8 | 94 | error (_("Lost the QNX node. Debug session probably over.")); |
61bb466e KW |
95 | |
96 | return (node); | |
97 | } | |
98 | ||
d737fd7f KW |
99 | static enum gdb_osabi |
100 | procfs_is_nto_target (bfd *abfd) | |
101 | { | |
102 | return GDB_OSABI_QNXNTO; | |
103 | } | |
104 | ||
6a3cb8e8 PA |
105 | /* This is called when we call 'target native' or 'target procfs |
106 | <arg>' from the (gdb) prompt. For QNX6 (nto), the only valid arg | |
107 | will be a QNX node string, eg: "/net/some_node". If arg is not a | |
108 | valid QNX node, we will default to local. */ | |
61bb466e | 109 | static void |
014f9477 | 110 | procfs_open_1 (struct target_ops *ops, const char *arg, int from_tty) |
61bb466e | 111 | { |
61bb466e KW |
112 | char *endstr; |
113 | char buffer[50]; | |
114 | int fd, total_size; | |
115 | procfs_sysinfo *sysinfo; | |
9fe4a216 | 116 | struct cleanup *cleanups; |
609c3040 | 117 | char nto_procfs_path[PATH_MAX]; |
61bb466e | 118 | |
6a3cb8e8 PA |
119 | /* Offer to kill previous inferiors before opening this target. */ |
120 | target_preopen (from_tty); | |
121 | ||
d737fd7f KW |
122 | nto_is_nto_target = procfs_is_nto_target; |
123 | ||
61bb466e KW |
124 | /* Set the default node used for spawning to this one, |
125 | and only override it if there is a valid arg. */ | |
126 | ||
609c3040 AR |
127 | xfree (nodestr); |
128 | nodestr = NULL; | |
129 | ||
61bb466e | 130 | nto_procfs_node = ND_LOCAL_NODE; |
609c3040 | 131 | nodestr = (arg != NULL) ? xstrdup (arg) : NULL; |
61bb466e KW |
132 | |
133 | init_thread_list (); | |
134 | ||
135 | if (nodestr) | |
136 | { | |
137 | nto_procfs_node = netmgr_strtond (nodestr, &endstr); | |
138 | if (nto_procfs_node == -1) | |
139 | { | |
140 | if (errno == ENOTSUP) | |
141 | printf_filtered ("QNX Net Manager not found.\n"); | |
142 | printf_filtered ("Invalid QNX node %s: error %d (%s).\n", nodestr, | |
dc5dd1eb | 143 | errno, safe_strerror (errno)); |
61bb466e KW |
144 | xfree (nodestr); |
145 | nodestr = NULL; | |
146 | nto_procfs_node = ND_LOCAL_NODE; | |
147 | } | |
148 | else if (*endstr) | |
149 | { | |
150 | if (*(endstr - 1) == '/') | |
151 | *(endstr - 1) = 0; | |
152 | else | |
153 | *endstr = 0; | |
154 | } | |
155 | } | |
609c3040 AR |
156 | snprintf (nto_procfs_path, PATH_MAX - 1, "%s%s", |
157 | (nodestr != NULL) ? nodestr : "", "/proc"); | |
61bb466e KW |
158 | |
159 | fd = open (nto_procfs_path, O_RDONLY); | |
160 | if (fd == -1) | |
161 | { | |
162 | printf_filtered ("Error opening %s : %d (%s)\n", nto_procfs_path, errno, | |
dc5dd1eb | 163 | safe_strerror (errno)); |
8a3fe4f8 | 164 | error (_("Invalid procfs arg")); |
61bb466e | 165 | } |
9fe4a216 | 166 | cleanups = make_cleanup_close (fd); |
61bb466e KW |
167 | |
168 | sysinfo = (void *) buffer; | |
169 | if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, sizeof buffer, 0) != EOK) | |
170 | { | |
171 | printf_filtered ("Error getting size: %d (%s)\n", errno, | |
dc5dd1eb | 172 | safe_strerror (errno)); |
8a3fe4f8 | 173 | error (_("Devctl failed.")); |
61bb466e KW |
174 | } |
175 | else | |
176 | { | |
177 | total_size = sysinfo->total_size; | |
178 | sysinfo = alloca (total_size); | |
609c3040 | 179 | if (sysinfo == NULL) |
61bb466e KW |
180 | { |
181 | printf_filtered ("Memory error: %d (%s)\n", errno, | |
dc5dd1eb | 182 | safe_strerror (errno)); |
8a3fe4f8 | 183 | error (_("alloca failed.")); |
61bb466e KW |
184 | } |
185 | else | |
186 | { | |
187 | if (devctl (fd, DCMD_PROC_SYSINFO, sysinfo, total_size, 0) != EOK) | |
188 | { | |
189 | printf_filtered ("Error getting sysinfo: %d (%s)\n", errno, | |
dc5dd1eb | 190 | safe_strerror (errno)); |
8a3fe4f8 | 191 | error (_("Devctl failed.")); |
61bb466e KW |
192 | } |
193 | else | |
194 | { | |
195 | if (sysinfo->type != | |
1143fffb | 196 | nto_map_arch_to_cputype (gdbarch_bfd_arch_info |
f5656ead | 197 | (target_gdbarch ())->arch_name)) |
9fe4a216 | 198 | error (_("Invalid target CPU.")); |
61bb466e KW |
199 | } |
200 | } | |
201 | } | |
9fe4a216 | 202 | do_cleanups (cleanups); |
6a3cb8e8 PA |
203 | |
204 | inf_child_open_target (ops, arg, from_tty); | |
61bb466e KW |
205 | printf_filtered ("Debugging using %s\n", nto_procfs_path); |
206 | } | |
207 | ||
208 | static void | |
209 | procfs_set_thread (ptid_t ptid) | |
210 | { | |
211 | pid_t tid; | |
212 | ||
213 | tid = ptid_get_tid (ptid); | |
214 | devctl (ctl_fd, DCMD_PROC_CURTHREAD, &tid, sizeof (tid), 0); | |
215 | } | |
216 | ||
217 | /* Return nonzero if the thread TH is still alive. */ | |
218 | static int | |
28439f5e | 219 | procfs_thread_alive (struct target_ops *ops, ptid_t ptid) |
61bb466e KW |
220 | { |
221 | pid_t tid; | |
745a434e AR |
222 | pid_t pid; |
223 | procfs_status status; | |
224 | int err; | |
61bb466e KW |
225 | |
226 | tid = ptid_get_tid (ptid); | |
745a434e AR |
227 | pid = ptid_get_pid (ptid); |
228 | ||
229 | if (kill (pid, 0) == -1) | |
230 | return 0; | |
231 | ||
232 | status.tid = tid; | |
233 | if ((err = devctl (ctl_fd, DCMD_PROC_TIDSTATUS, | |
234 | &status, sizeof (status), 0)) != EOK) | |
235 | return 0; | |
236 | ||
237 | /* Thread is alive or dead but not yet joined, | |
238 | or dead and there is an alive (or dead unjoined) thread with | |
239 | higher tid. | |
240 | ||
241 | If the tid is not the same as requested, requested tid is dead. */ | |
242 | return (status.tid == tid) && (status.state != STATE_DEAD); | |
243 | } | |
244 | ||
245 | static void | |
246 | update_thread_private_data_name (struct thread_info *new_thread, | |
247 | const char *newname) | |
248 | { | |
249 | int newnamelen; | |
250 | struct private_thread_info *pti; | |
251 | ||
252 | gdb_assert (newname != NULL); | |
253 | gdb_assert (new_thread != NULL); | |
254 | newnamelen = strlen (newname); | |
fe978cb0 | 255 | if (!new_thread->priv) |
745a434e | 256 | { |
fe978cb0 | 257 | new_thread->priv = xmalloc (offsetof (struct private_thread_info, |
745a434e AR |
258 | name) |
259 | + newnamelen + 1); | |
fe978cb0 | 260 | memcpy (new_thread->priv->name, newname, newnamelen + 1); |
745a434e | 261 | } |
fe978cb0 | 262 | else if (strcmp (newname, new_thread->priv->name) != 0) |
745a434e AR |
263 | { |
264 | /* Reallocate if neccessary. */ | |
fe978cb0 | 265 | int oldnamelen = strlen (new_thread->priv->name); |
745a434e AR |
266 | |
267 | if (oldnamelen < newnamelen) | |
fe978cb0 | 268 | new_thread->priv = xrealloc (new_thread->priv, |
745a434e AR |
269 | offsetof (struct private_thread_info, |
270 | name) | |
271 | + newnamelen + 1); | |
fe978cb0 | 272 | memcpy (new_thread->priv->name, newname, newnamelen + 1); |
745a434e AR |
273 | } |
274 | } | |
275 | ||
276 | static void | |
277 | update_thread_private_data (struct thread_info *new_thread, | |
278 | pthread_t tid, int state, int flags) | |
279 | { | |
280 | struct private_thread_info *pti; | |
281 | procfs_info pidinfo; | |
282 | struct _thread_name *tn; | |
283 | procfs_threadctl tctl; | |
284 | ||
285 | #if _NTO_VERSION > 630 | |
286 | gdb_assert (new_thread != NULL); | |
287 | ||
288 | if (devctl (ctl_fd, DCMD_PROC_INFO, &pidinfo, | |
289 | sizeof(pidinfo), 0) != EOK) | |
290 | return; | |
291 | ||
292 | memset (&tctl, 0, sizeof (tctl)); | |
293 | tctl.cmd = _NTO_TCTL_NAME; | |
294 | tn = (struct _thread_name *) (&tctl.data); | |
295 | ||
296 | /* Fetch name for the given thread. */ | |
297 | tctl.tid = tid; | |
298 | tn->name_buf_len = sizeof (tctl.data) - sizeof (*tn); | |
299 | tn->new_name_len = -1; /* Getting, not setting. */ | |
300 | if (devctl (ctl_fd, DCMD_PROC_THREADCTL, &tctl, sizeof (tctl), NULL) != EOK) | |
301 | tn->name_buf[0] = '\0'; | |
302 | ||
303 | tn->name_buf[_NTO_THREAD_NAME_MAX] = '\0'; | |
304 | ||
305 | update_thread_private_data_name (new_thread, tn->name_buf); | |
306 | ||
fe978cb0 | 307 | pti = (struct private_thread_info *) new_thread->priv; |
745a434e AR |
308 | pti->tid = tid; |
309 | pti->state = state; | |
310 | pti->flags = flags; | |
311 | #endif /* _NTO_VERSION */ | |
61bb466e KW |
312 | } |
313 | ||
94c74239 | 314 | static void |
e8032dde | 315 | procfs_update_thread_list (struct target_ops *ops) |
61bb466e KW |
316 | { |
317 | procfs_status status; | |
318 | pid_t pid; | |
319 | ptid_t ptid; | |
745a434e AR |
320 | pthread_t tid; |
321 | struct thread_info *new_thread; | |
61bb466e KW |
322 | |
323 | if (ctl_fd == -1) | |
324 | return; | |
325 | ||
e8032dde PA |
326 | prune_threads (); |
327 | ||
61bb466e KW |
328 | pid = ptid_get_pid (inferior_ptid); |
329 | ||
745a434e AR |
330 | status.tid = 1; |
331 | ||
332 | for (tid = 1;; ++tid) | |
61bb466e | 333 | { |
745a434e AR |
334 | if (status.tid == tid |
335 | && (devctl (ctl_fd, DCMD_PROC_TIDSTATUS, &status, sizeof (status), 0) | |
336 | != EOK)) | |
61bb466e | 337 | break; |
745a434e AR |
338 | if (status.tid != tid) |
339 | /* The reason why this would not be equal is that devctl might have | |
340 | returned different tid, meaning the requested tid no longer exists | |
341 | (e.g. thread exited). */ | |
342 | continue; | |
343 | ptid = ptid_build (pid, 0, tid); | |
344 | new_thread = find_thread_ptid (ptid); | |
345 | if (!new_thread) | |
346 | new_thread = add_thread (ptid); | |
347 | update_thread_private_data (new_thread, tid, status.state, 0); | |
348 | status.tid++; | |
61bb466e KW |
349 | } |
350 | return; | |
351 | } | |
352 | ||
9fe4a216 TT |
353 | static void |
354 | do_closedir_cleanup (void *dir) | |
355 | { | |
356 | closedir (dir); | |
357 | } | |
358 | ||
774ee6d2 | 359 | static void |
61bb466e KW |
360 | procfs_pidlist (char *args, int from_tty) |
361 | { | |
362 | DIR *dp = NULL; | |
363 | struct dirent *dirp = NULL; | |
609c3040 | 364 | char buf[PATH_MAX]; |
61bb466e KW |
365 | procfs_info *pidinfo = NULL; |
366 | procfs_debuginfo *info = NULL; | |
367 | procfs_status *status = NULL; | |
368 | pid_t num_threads = 0; | |
369 | pid_t pid; | |
370 | char name[512]; | |
9fe4a216 | 371 | struct cleanup *cleanups; |
609c3040 | 372 | char procfs_dir[PATH_MAX]; |
61bb466e | 373 | |
609c3040 AR |
374 | snprintf (procfs_dir, sizeof (procfs_dir), "%s%s", |
375 | (nodestr != NULL) ? nodestr : "", "/proc"); | |
376 | ||
377 | dp = opendir (procfs_dir); | |
61bb466e KW |
378 | if (dp == NULL) |
379 | { | |
dc5dd1eb | 380 | fprintf_unfiltered (gdb_stderr, "failed to opendir \"%s\" - %d (%s)", |
609c3040 | 381 | procfs_dir, errno, safe_strerror (errno)); |
61bb466e KW |
382 | return; |
383 | } | |
384 | ||
9fe4a216 TT |
385 | cleanups = make_cleanup (do_closedir_cleanup, dp); |
386 | ||
61bb466e KW |
387 | /* Start scan at first pid. */ |
388 | rewinddir (dp); | |
389 | ||
390 | do | |
391 | { | |
9fe4a216 TT |
392 | int fd; |
393 | struct cleanup *inner_cleanup; | |
394 | ||
61bb466e KW |
395 | /* Get the right pid and procfs path for the pid. */ |
396 | do | |
397 | { | |
398 | dirp = readdir (dp); | |
399 | if (dirp == NULL) | |
400 | { | |
9fe4a216 | 401 | do_cleanups (cleanups); |
61bb466e KW |
402 | return; |
403 | } | |
609c3040 AR |
404 | snprintf (buf, sizeof (buf), "%s%s/%s/as", |
405 | (nodestr != NULL) ? nodestr : "", | |
406 | "/proc", dirp->d_name); | |
61bb466e KW |
407 | pid = atoi (dirp->d_name); |
408 | } | |
409 | while (pid == 0); | |
410 | ||
0df8b418 | 411 | /* Open the procfs path. */ |
61bb466e KW |
412 | fd = open (buf, O_RDONLY); |
413 | if (fd == -1) | |
414 | { | |
dc5dd1eb | 415 | fprintf_unfiltered (gdb_stderr, "failed to open %s - %d (%s)\n", |
d737fd7f | 416 | buf, errno, safe_strerror (errno)); |
609c3040 | 417 | continue; |
61bb466e | 418 | } |
9fe4a216 | 419 | inner_cleanup = make_cleanup_close (fd); |
61bb466e KW |
420 | |
421 | pidinfo = (procfs_info *) buf; | |
422 | if (devctl (fd, DCMD_PROC_INFO, pidinfo, sizeof (buf), 0) != EOK) | |
423 | { | |
dc5dd1eb | 424 | fprintf_unfiltered (gdb_stderr, |
d737fd7f KW |
425 | "devctl DCMD_PROC_INFO failed - %d (%s)\n", |
426 | errno, safe_strerror (errno)); | |
61bb466e KW |
427 | break; |
428 | } | |
429 | num_threads = pidinfo->num_threads; | |
430 | ||
431 | info = (procfs_debuginfo *) buf; | |
432 | if (devctl (fd, DCMD_PROC_MAPDEBUG_BASE, info, sizeof (buf), 0) != EOK) | |
433 | strcpy (name, "unavailable"); | |
434 | else | |
435 | strcpy (name, info->path); | |
436 | ||
437 | /* Collect state info on all the threads. */ | |
438 | status = (procfs_status *) buf; | |
439 | for (status->tid = 1; status->tid <= num_threads; status->tid++) | |
440 | { | |
609c3040 AR |
441 | const int err |
442 | = devctl (fd, DCMD_PROC_TIDSTATUS, status, sizeof (buf), 0); | |
443 | printf_filtered ("%s - %d", name, pid); | |
444 | if (err == EOK && status->tid != 0) | |
445 | printf_filtered ("/%d\n", status->tid); | |
446 | else | |
447 | { | |
448 | printf_filtered ("\n"); | |
449 | break; | |
450 | } | |
61bb466e | 451 | } |
9fe4a216 TT |
452 | |
453 | do_cleanups (inner_cleanup); | |
61bb466e KW |
454 | } |
455 | while (dirp != NULL); | |
456 | ||
9fe4a216 | 457 | do_cleanups (cleanups); |
61bb466e KW |
458 | return; |
459 | } | |
460 | ||
774ee6d2 | 461 | static void |
61bb466e KW |
462 | procfs_meminfo (char *args, int from_tty) |
463 | { | |
464 | procfs_mapinfo *mapinfos = NULL; | |
465 | static int num_mapinfos = 0; | |
466 | procfs_mapinfo *mapinfo_p, *mapinfo_p2; | |
467 | int flags = ~0, err, num, i, j; | |
468 | ||
469 | struct | |
470 | { | |
471 | procfs_debuginfo info; | |
472 | char buff[_POSIX_PATH_MAX]; | |
473 | } map; | |
474 | ||
475 | struct info | |
476 | { | |
477 | unsigned addr; | |
478 | unsigned size; | |
479 | unsigned flags; | |
480 | unsigned debug_vaddr; | |
481 | unsigned long long offset; | |
482 | }; | |
483 | ||
484 | struct printinfo | |
485 | { | |
486 | unsigned long long ino; | |
487 | unsigned dev; | |
488 | struct info text; | |
489 | struct info data; | |
490 | char name[256]; | |
491 | } printme; | |
492 | ||
493 | /* Get the number of map entrys. */ | |
494 | err = devctl (ctl_fd, DCMD_PROC_MAPINFO, NULL, 0, &num); | |
495 | if (err != EOK) | |
496 | { | |
d737fd7f KW |
497 | printf ("failed devctl num mapinfos - %d (%s)\n", err, |
498 | safe_strerror (err)); | |
61bb466e KW |
499 | return; |
500 | } | |
501 | ||
774ee6d2 | 502 | mapinfos = XNEWVEC (procfs_mapinfo, num); |
61bb466e KW |
503 | |
504 | num_mapinfos = num; | |
505 | mapinfo_p = mapinfos; | |
506 | ||
507 | /* Fill the map entrys. */ | |
508 | err = devctl (ctl_fd, DCMD_PROC_MAPINFO, mapinfo_p, num | |
509 | * sizeof (procfs_mapinfo), &num); | |
510 | if (err != EOK) | |
511 | { | |
5483d879 | 512 | printf ("failed devctl mapinfos - %d (%s)\n", err, safe_strerror (err)); |
61bb466e KW |
513 | xfree (mapinfos); |
514 | return; | |
515 | } | |
516 | ||
517 | num = min (num, num_mapinfos); | |
518 | ||
519 | /* Run through the list of mapinfos, and store the data and text info | |
520 | so we can print it at the bottom of the loop. */ | |
521 | for (mapinfo_p = mapinfos, i = 0; i < num; i++, mapinfo_p++) | |
522 | { | |
523 | if (!(mapinfo_p->flags & flags)) | |
524 | mapinfo_p->ino = 0; | |
525 | ||
526 | if (mapinfo_p->ino == 0) /* Already visited. */ | |
527 | continue; | |
528 | ||
529 | map.info.vaddr = mapinfo_p->vaddr; | |
530 | ||
531 | err = devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0); | |
532 | if (err != EOK) | |
533 | continue; | |
534 | ||
535 | memset (&printme, 0, sizeof printme); | |
536 | printme.dev = mapinfo_p->dev; | |
537 | printme.ino = mapinfo_p->ino; | |
538 | printme.text.addr = mapinfo_p->vaddr; | |
539 | printme.text.size = mapinfo_p->size; | |
540 | printme.text.flags = mapinfo_p->flags; | |
541 | printme.text.offset = mapinfo_p->offset; | |
542 | printme.text.debug_vaddr = map.info.vaddr; | |
543 | strcpy (printme.name, map.info.path); | |
544 | ||
545 | /* Check for matching data. */ | |
546 | for (mapinfo_p2 = mapinfos, j = 0; j < num; j++, mapinfo_p2++) | |
547 | { | |
548 | if (mapinfo_p2->vaddr != mapinfo_p->vaddr | |
549 | && mapinfo_p2->ino == mapinfo_p->ino | |
550 | && mapinfo_p2->dev == mapinfo_p->dev) | |
551 | { | |
552 | map.info.vaddr = mapinfo_p2->vaddr; | |
553 | err = | |
554 | devctl (ctl_fd, DCMD_PROC_MAPDEBUG, &map, sizeof (map), 0); | |
555 | if (err != EOK) | |
556 | continue; | |
557 | ||
558 | if (strcmp (map.info.path, printme.name)) | |
559 | continue; | |
560 | ||
561 | /* Lower debug_vaddr is always text, if nessessary, swap. */ | |
562 | if ((int) map.info.vaddr < (int) printme.text.debug_vaddr) | |
563 | { | |
564 | memcpy (&(printme.data), &(printme.text), | |
565 | sizeof (printme.data)); | |
566 | printme.text.addr = mapinfo_p2->vaddr; | |
567 | printme.text.size = mapinfo_p2->size; | |
568 | printme.text.flags = mapinfo_p2->flags; | |
569 | printme.text.offset = mapinfo_p2->offset; | |
570 | printme.text.debug_vaddr = map.info.vaddr; | |
571 | } | |
572 | else | |
573 | { | |
574 | printme.data.addr = mapinfo_p2->vaddr; | |
575 | printme.data.size = mapinfo_p2->size; | |
576 | printme.data.flags = mapinfo_p2->flags; | |
577 | printme.data.offset = mapinfo_p2->offset; | |
578 | printme.data.debug_vaddr = map.info.vaddr; | |
579 | } | |
580 | mapinfo_p2->ino = 0; | |
581 | } | |
582 | } | |
583 | mapinfo_p->ino = 0; | |
584 | ||
585 | printf_filtered ("%s\n", printme.name); | |
586 | printf_filtered ("\ttext=%08x bytes @ 0x%08x\n", printme.text.size, | |
587 | printme.text.addr); | |
588 | printf_filtered ("\t\tflags=%08x\n", printme.text.flags); | |
589 | printf_filtered ("\t\tdebug=%08x\n", printme.text.debug_vaddr); | |
2244ba2e | 590 | printf_filtered ("\t\toffset=%s\n", phex (printme.text.offset, 8)); |
61bb466e KW |
591 | if (printme.data.size) |
592 | { | |
593 | printf_filtered ("\tdata=%08x bytes @ 0x%08x\n", printme.data.size, | |
594 | printme.data.addr); | |
595 | printf_filtered ("\t\tflags=%08x\n", printme.data.flags); | |
596 | printf_filtered ("\t\tdebug=%08x\n", printme.data.debug_vaddr); | |
2244ba2e | 597 | printf_filtered ("\t\toffset=%s\n", phex (printme.data.offset, 8)); |
61bb466e KW |
598 | } |
599 | printf_filtered ("\tdev=0x%x\n", printme.dev); | |
600 | printf_filtered ("\tino=0x%x\n", (unsigned int) printme.ino); | |
601 | } | |
602 | xfree (mapinfos); | |
603 | return; | |
604 | } | |
605 | ||
606 | /* Print status information about what we're accessing. */ | |
607 | static void | |
608 | procfs_files_info (struct target_ops *ignore) | |
609 | { | |
181e7f93 PA |
610 | struct inferior *inf = current_inferior (); |
611 | ||
61bb466e | 612 | printf_unfiltered ("\tUsing the running image of %s %s via %s.\n", |
3fdfcbf1 | 613 | inf->attach_flag ? "attached" : "child", |
609c3040 AR |
614 | target_pid_to_str (inferior_ptid), |
615 | (nodestr != NULL) ? nodestr : "local node"); | |
61bb466e KW |
616 | } |
617 | ||
61bb466e KW |
618 | /* Attach to process PID, then initialize for debugging it. */ |
619 | static void | |
c0939df1 | 620 | procfs_attach (struct target_ops *ops, const char *args, int from_tty) |
61bb466e KW |
621 | { |
622 | char *exec_file; | |
623 | int pid; | |
181e7f93 | 624 | struct inferior *inf; |
61bb466e | 625 | |
74164c56 | 626 | pid = parse_pid_to_attach (args); |
61bb466e KW |
627 | |
628 | if (pid == getpid ()) | |
8a3fe4f8 | 629 | error (_("Attaching GDB to itself is not a good idea...")); |
61bb466e KW |
630 | |
631 | if (from_tty) | |
632 | { | |
633 | exec_file = (char *) get_exec_file (0); | |
634 | ||
635 | if (exec_file) | |
636 | printf_unfiltered ("Attaching to program `%s', %s\n", exec_file, | |
637 | target_pid_to_str (pid_to_ptid (pid))); | |
638 | else | |
639 | printf_unfiltered ("Attaching to %s\n", | |
640 | target_pid_to_str (pid_to_ptid (pid))); | |
641 | ||
642 | gdb_flush (gdb_stdout); | |
643 | } | |
644 | inferior_ptid = do_attach (pid_to_ptid (pid)); | |
6c95b8df PA |
645 | inf = current_inferior (); |
646 | inferior_appeared (inf, pid); | |
181e7f93 | 647 | inf->attach_flag = 1; |
7f9f62ba | 648 | |
6a3cb8e8 PA |
649 | if (!target_is_pushed (ops)) |
650 | push_target (ops); | |
7f9f62ba | 651 | |
e8032dde | 652 | procfs_update_thread_list (ops); |
61bb466e KW |
653 | } |
654 | ||
655 | static void | |
f045800c | 656 | procfs_post_attach (struct target_ops *self, pid_t pid) |
61bb466e | 657 | { |
61bb466e | 658 | if (exec_bfd) |
268a4a75 | 659 | solib_create_inferior_hook (0); |
61bb466e KW |
660 | } |
661 | ||
662 | static ptid_t | |
663 | do_attach (ptid_t ptid) | |
664 | { | |
665 | procfs_status status; | |
666 | struct sigevent event; | |
dc5dd1eb | 667 | char path[PATH_MAX]; |
61bb466e | 668 | |
609c3040 AR |
669 | snprintf (path, PATH_MAX - 1, "%s%s/%d/as", |
670 | (nodestr != NULL) ? nodestr : "", "/proc", ptid_get_pid (ptid)); | |
61bb466e KW |
671 | ctl_fd = open (path, O_RDWR); |
672 | if (ctl_fd == -1) | |
8a3fe4f8 | 673 | error (_("Couldn't open proc file %s, error %d (%s)"), path, errno, |
dc5dd1eb | 674 | safe_strerror (errno)); |
61bb466e | 675 | if (devctl (ctl_fd, DCMD_PROC_STOP, &status, sizeof (status), 0) != EOK) |
8a3fe4f8 | 676 | error (_("Couldn't stop process")); |
61bb466e KW |
677 | |
678 | /* Define a sigevent for process stopped notification. */ | |
679 | event.sigev_notify = SIGEV_SIGNAL_THREAD; | |
680 | event.sigev_signo = SIGUSR1; | |
681 | event.sigev_code = 0; | |
682 | event.sigev_value.sival_ptr = NULL; | |
683 | event.sigev_priority = -1; | |
684 | devctl (ctl_fd, DCMD_PROC_EVENT, &event, sizeof (event), 0); | |
685 | ||
686 | if (devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0) == EOK | |
687 | && status.flags & _DEBUG_FLAG_STOPPED) | |
dfd4cc63 | 688 | SignalKill (nto_node (), ptid_get_pid (ptid), 0, SIGCONT, 0, 0); |
61bb466e | 689 | nto_init_solib_absolute_prefix (); |
dfd4cc63 | 690 | return ptid_build (ptid_get_pid (ptid), 0, status.tid); |
61bb466e KW |
691 | } |
692 | ||
693 | /* Ask the user what to do when an interrupt is received. */ | |
694 | static void | |
dc5dd1eb | 695 | interrupt_query (void) |
61bb466e KW |
696 | { |
697 | target_terminal_ours (); | |
698 | ||
9e2f0ad4 HZ |
699 | if (query (_("Interrupted while waiting for the program.\n\ |
700 | Give up (and stop debugging it)? "))) | |
61bb466e KW |
701 | { |
702 | target_mourn_inferior (); | |
039e3c22 | 703 | quit (); |
61bb466e KW |
704 | } |
705 | ||
706 | target_terminal_inferior (); | |
707 | } | |
708 | ||
709 | /* The user typed ^C twice. */ | |
710 | static void | |
bfedc46a | 711 | nto_handle_sigint_twice (int signo) |
61bb466e KW |
712 | { |
713 | signal (signo, ofunc); | |
714 | interrupt_query (); | |
bfedc46a | 715 | signal (signo, nto_handle_sigint_twice); |
61bb466e KW |
716 | } |
717 | ||
718 | static void | |
bfedc46a | 719 | nto_handle_sigint (int signo) |
61bb466e KW |
720 | { |
721 | /* If this doesn't work, try more severe steps. */ | |
bfedc46a | 722 | signal (signo, nto_handle_sigint_twice); |
61bb466e | 723 | |
bfedc46a | 724 | target_interrupt (inferior_ptid); |
61bb466e KW |
725 | } |
726 | ||
727 | static ptid_t | |
117de6a9 | 728 | procfs_wait (struct target_ops *ops, |
47608cb1 | 729 | ptid_t ptid, struct target_waitstatus *ourstatus, int options) |
61bb466e KW |
730 | { |
731 | sigset_t set; | |
732 | siginfo_t info; | |
733 | procfs_status status; | |
734 | static int exit_signo = 0; /* To track signals that cause termination. */ | |
735 | ||
736 | ourstatus->kind = TARGET_WAITKIND_SPURIOUS; | |
737 | ||
738 | if (ptid_equal (inferior_ptid, null_ptid)) | |
739 | { | |
740 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 741 | ourstatus->value.sig = GDB_SIGNAL_0; |
61bb466e KW |
742 | exit_signo = 0; |
743 | return null_ptid; | |
744 | } | |
745 | ||
746 | sigemptyset (&set); | |
747 | sigaddset (&set, SIGUSR1); | |
748 | ||
749 | devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0); | |
750 | while (!(status.flags & _DEBUG_FLAG_ISTOP)) | |
751 | { | |
a40805d4 | 752 | ofunc = signal (SIGINT, nto_handle_sigint); |
61bb466e KW |
753 | sigwaitinfo (&set, &info); |
754 | signal (SIGINT, ofunc); | |
755 | devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0); | |
756 | } | |
757 | ||
758 | if (status.flags & _DEBUG_FLAG_SSTEP) | |
759 | { | |
760 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 761 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
61bb466e KW |
762 | } |
763 | /* Was it a breakpoint? */ | |
764 | else if (status.flags & _DEBUG_FLAG_TRACE) | |
765 | { | |
766 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 767 | ourstatus->value.sig = GDB_SIGNAL_TRAP; |
61bb466e KW |
768 | } |
769 | else if (status.flags & _DEBUG_FLAG_ISTOP) | |
770 | { | |
771 | switch (status.why) | |
772 | { | |
773 | case _DEBUG_WHY_SIGNALLED: | |
774 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
775 | ourstatus->value.sig = | |
2ea28649 | 776 | gdb_signal_from_host (status.info.si_signo); |
61bb466e KW |
777 | exit_signo = 0; |
778 | break; | |
779 | case _DEBUG_WHY_FAULTED: | |
780 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
781 | if (status.info.si_signo == SIGTRAP) | |
782 | { | |
783 | ourstatus->value.sig = 0; | |
784 | exit_signo = 0; | |
785 | } | |
786 | else | |
787 | { | |
788 | ourstatus->value.sig = | |
2ea28649 | 789 | gdb_signal_from_host (status.info.si_signo); |
61bb466e KW |
790 | exit_signo = ourstatus->value.sig; |
791 | } | |
792 | break; | |
793 | ||
794 | case _DEBUG_WHY_TERMINATED: | |
795 | { | |
796 | int waitval = 0; | |
797 | ||
dfd4cc63 | 798 | waitpid (ptid_get_pid (inferior_ptid), &waitval, WNOHANG); |
61bb466e KW |
799 | if (exit_signo) |
800 | { | |
801 | /* Abnormal death. */ | |
802 | ourstatus->kind = TARGET_WAITKIND_SIGNALLED; | |
803 | ourstatus->value.sig = exit_signo; | |
804 | } | |
805 | else | |
806 | { | |
807 | /* Normal death. */ | |
808 | ourstatus->kind = TARGET_WAITKIND_EXITED; | |
809 | ourstatus->value.integer = WEXITSTATUS (waitval); | |
810 | } | |
811 | exit_signo = 0; | |
812 | break; | |
813 | } | |
814 | ||
815 | case _DEBUG_WHY_REQUESTED: | |
816 | /* We are assuming a requested stop is due to a SIGINT. */ | |
817 | ourstatus->kind = TARGET_WAITKIND_STOPPED; | |
a493e3e2 | 818 | ourstatus->value.sig = GDB_SIGNAL_INT; |
61bb466e KW |
819 | exit_signo = 0; |
820 | break; | |
821 | } | |
822 | } | |
823 | ||
a6a7f2a5 | 824 | return ptid_build (status.pid, 0, status.tid); |
61bb466e KW |
825 | } |
826 | ||
827 | /* Read the current values of the inferior's registers, both the | |
828 | general register set and floating point registers (if supported) | |
829 | and update gdb's idea of their current values. */ | |
830 | static void | |
28439f5e PA |
831 | procfs_fetch_registers (struct target_ops *ops, |
832 | struct regcache *regcache, int regno) | |
61bb466e KW |
833 | { |
834 | union | |
835 | { | |
836 | procfs_greg greg; | |
837 | procfs_fpreg fpreg; | |
838 | procfs_altreg altreg; | |
839 | } | |
840 | reg; | |
841 | int regsize; | |
842 | ||
843 | procfs_set_thread (inferior_ptid); | |
844 | if (devctl (ctl_fd, DCMD_PROC_GETGREG, ®, sizeof (reg), ®size) == EOK) | |
56be3814 | 845 | nto_supply_gregset (regcache, (char *) ®.greg); |
61bb466e KW |
846 | if (devctl (ctl_fd, DCMD_PROC_GETFPREG, ®, sizeof (reg), ®size) |
847 | == EOK) | |
56be3814 | 848 | nto_supply_fpregset (regcache, (char *) ®.fpreg); |
61bb466e KW |
849 | if (devctl (ctl_fd, DCMD_PROC_GETALTREG, ®, sizeof (reg), ®size) |
850 | == EOK) | |
56be3814 | 851 | nto_supply_altregset (regcache, (char *) ®.altreg); |
61bb466e KW |
852 | } |
853 | ||
9d46c4e5 PA |
854 | /* Helper for procfs_xfer_partial that handles memory transfers. |
855 | Arguments are like target_xfer_partial. */ | |
61bb466e | 856 | |
9d46c4e5 PA |
857 | static enum target_xfer_status |
858 | procfs_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf, | |
859 | ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len) | |
61bb466e | 860 | { |
9d46c4e5 PA |
861 | int nbytes; |
862 | ||
863 | if (lseek (ctl_fd, (off_t) memaddr, SEEK_SET) != (off_t) memaddr) | |
864 | return TARGET_XFER_E_IO; | |
865 | ||
866 | if (writebuf != NULL) | |
867 | nbytes = write (ctl_fd, writebuf, len); | |
868 | else | |
869 | nbytes = read (ctl_fd, readbuf, len); | |
870 | if (nbytes <= 0) | |
871 | return TARGET_XFER_E_IO; | |
872 | *xfered_len = nbytes; | |
873 | return TARGET_XFER_OK; | |
874 | } | |
875 | ||
876 | /* Target to_xfer_partial implementation. */ | |
61bb466e | 877 | |
9d46c4e5 PA |
878 | static enum target_xfer_status |
879 | procfs_xfer_partial (struct target_ops *ops, enum target_object object, | |
880 | const char *annex, gdb_byte *readbuf, | |
881 | const gdb_byte *writebuf, ULONGEST offset, ULONGEST len, | |
882 | ULONGEST *xfered_len) | |
883 | { | |
884 | switch (object) | |
61bb466e | 885 | { |
9d46c4e5 PA |
886 | case TARGET_OBJECT_MEMORY: |
887 | return procfs_xfer_memory (readbuf, writebuf, offset, len, xfered_len); | |
888 | default: | |
889 | return ops->beneath->to_xfer_partial (ops->beneath, object, annex, | |
774ee6d2 AR |
890 | readbuf, writebuf, offset, len, |
891 | xfered_len); | |
61bb466e | 892 | } |
61bb466e KW |
893 | } |
894 | ||
895 | /* Take a program previously attached to and detaches it. | |
896 | The program resumes execution and will no longer stop | |
897 | on signals, etc. We'd better not have left any breakpoints | |
898 | in the program or it'll die when it hits one. */ | |
899 | static void | |
52554a0e | 900 | procfs_detach (struct target_ops *ops, const char *args, int from_tty) |
61bb466e KW |
901 | { |
902 | int siggnal = 0; | |
7f9f62ba | 903 | int pid; |
61bb466e KW |
904 | |
905 | if (from_tty) | |
906 | { | |
907 | char *exec_file = get_exec_file (0); | |
908 | if (exec_file == 0) | |
909 | exec_file = ""; | |
910 | printf_unfiltered ("Detaching from program: %s %s\n", | |
911 | exec_file, target_pid_to_str (inferior_ptid)); | |
912 | gdb_flush (gdb_stdout); | |
913 | } | |
914 | if (args) | |
915 | siggnal = atoi (args); | |
916 | ||
917 | if (siggnal) | |
dfd4cc63 | 918 | SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0, siggnal, 0, 0); |
61bb466e KW |
919 | |
920 | close (ctl_fd); | |
921 | ctl_fd = -1; | |
7f9f62ba PA |
922 | |
923 | pid = ptid_get_pid (inferior_ptid); | |
61bb466e | 924 | inferior_ptid = null_ptid; |
7f9f62ba PA |
925 | detach_inferior (pid); |
926 | init_thread_list (); | |
6a3cb8e8 | 927 | inf_child_maybe_unpush_target (ops); |
61bb466e KW |
928 | } |
929 | ||
930 | static int | |
931 | procfs_breakpoint (CORE_ADDR addr, int type, int size) | |
932 | { | |
933 | procfs_break brk; | |
934 | ||
935 | brk.type = type; | |
936 | brk.addr = addr; | |
937 | brk.size = size; | |
938 | errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0); | |
939 | if (errno != EOK) | |
940 | return 1; | |
941 | return 0; | |
942 | } | |
943 | ||
944 | static int | |
3db08215 | 945 | procfs_insert_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 946 | struct bp_target_info *bp_tgt) |
61bb466e | 947 | { |
0d5ed153 | 948 | bp_tgt->placed_address = bp_tgt->reqstd_address; |
8181d85f | 949 | return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, 0); |
61bb466e KW |
950 | } |
951 | ||
952 | static int | |
3db08215 | 953 | procfs_remove_breakpoint (struct target_ops *ops, struct gdbarch *gdbarch, |
a6d9a66e | 954 | struct bp_target_info *bp_tgt) |
61bb466e | 955 | { |
8181d85f | 956 | return procfs_breakpoint (bp_tgt->placed_address, _DEBUG_BREAK_EXEC, -1); |
61bb466e KW |
957 | } |
958 | ||
959 | static int | |
23a26771 | 960 | procfs_insert_hw_breakpoint (struct target_ops *self, struct gdbarch *gdbarch, |
a6d9a66e | 961 | struct bp_target_info *bp_tgt) |
61bb466e | 962 | { |
0d5ed153 | 963 | bp_tgt->placed_address = bp_tgt->reqstd_address; |
8181d85f DJ |
964 | return procfs_breakpoint (bp_tgt->placed_address, |
965 | _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, 0); | |
61bb466e KW |
966 | } |
967 | ||
968 | static int | |
8476dc92 TT |
969 | procfs_remove_hw_breakpoint (struct target_ops *self, |
970 | struct gdbarch *gdbarch, | |
a6d9a66e | 971 | struct bp_target_info *bp_tgt) |
61bb466e | 972 | { |
8181d85f DJ |
973 | return procfs_breakpoint (bp_tgt->placed_address, |
974 | _DEBUG_BREAK_EXEC | _DEBUG_BREAK_HW, -1); | |
61bb466e KW |
975 | } |
976 | ||
977 | static void | |
28439f5e | 978 | procfs_resume (struct target_ops *ops, |
2ea28649 | 979 | ptid_t ptid, int step, enum gdb_signal signo) |
61bb466e KW |
980 | { |
981 | int signal_to_pass; | |
982 | procfs_status status; | |
14ef7606 | 983 | sigset_t *run_fault = (sigset_t *) (void *) &run.fault; |
61bb466e KW |
984 | |
985 | if (ptid_equal (inferior_ptid, null_ptid)) | |
986 | return; | |
987 | ||
988 | procfs_set_thread (ptid_equal (ptid, minus_one_ptid) ? inferior_ptid : | |
989 | ptid); | |
990 | ||
991 | run.flags = _DEBUG_RUN_FAULT | _DEBUG_RUN_TRACE; | |
992 | if (step) | |
993 | run.flags |= _DEBUG_RUN_STEP; | |
994 | ||
14ef7606 AR |
995 | sigemptyset (run_fault); |
996 | sigaddset (run_fault, FLTBPT); | |
997 | sigaddset (run_fault, FLTTRACE); | |
998 | sigaddset (run_fault, FLTILL); | |
999 | sigaddset (run_fault, FLTPRIV); | |
1000 | sigaddset (run_fault, FLTBOUNDS); | |
1001 | sigaddset (run_fault, FLTIOVF); | |
1002 | sigaddset (run_fault, FLTIZDIV); | |
1003 | sigaddset (run_fault, FLTFPE); | |
61bb466e | 1004 | /* Peter V will be changing this at some point. */ |
14ef7606 | 1005 | sigaddset (run_fault, FLTPAGE); |
61bb466e KW |
1006 | |
1007 | run.flags |= _DEBUG_RUN_ARM; | |
1008 | ||
2ea28649 | 1009 | signal_to_pass = gdb_signal_to_host (signo); |
61bb466e KW |
1010 | |
1011 | if (signal_to_pass) | |
1012 | { | |
1013 | devctl (ctl_fd, DCMD_PROC_STATUS, &status, sizeof (status), 0); | |
2ea28649 | 1014 | signal_to_pass = gdb_signal_to_host (signo); |
61bb466e KW |
1015 | if (status.why & (_DEBUG_WHY_SIGNALLED | _DEBUG_WHY_FAULTED)) |
1016 | { | |
1017 | if (signal_to_pass != status.info.si_signo) | |
1018 | { | |
dfd4cc63 | 1019 | SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0, |
d737fd7f | 1020 | signal_to_pass, 0, 0); |
61bb466e KW |
1021 | run.flags |= _DEBUG_RUN_CLRFLT | _DEBUG_RUN_CLRSIG; |
1022 | } | |
0df8b418 | 1023 | else /* Let it kill the program without telling us. */ |
61bb466e KW |
1024 | sigdelset (&run.trace, signal_to_pass); |
1025 | } | |
1026 | } | |
1027 | else | |
1028 | run.flags |= _DEBUG_RUN_CLRSIG | _DEBUG_RUN_CLRFLT; | |
1029 | ||
1030 | errno = devctl (ctl_fd, DCMD_PROC_RUN, &run, sizeof (run), 0); | |
1031 | if (errno != EOK) | |
1032 | { | |
9b20d036 | 1033 | perror (_("run error!\n")); |
61bb466e KW |
1034 | return; |
1035 | } | |
1036 | } | |
1037 | ||
1038 | static void | |
136d6dae | 1039 | procfs_mourn_inferior (struct target_ops *ops) |
61bb466e KW |
1040 | { |
1041 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
1042 | { | |
dfd4cc63 | 1043 | SignalKill (nto_node (), ptid_get_pid (inferior_ptid), 0, SIGKILL, 0, 0); |
61bb466e KW |
1044 | close (ctl_fd); |
1045 | } | |
1046 | inferior_ptid = null_ptid; | |
1047 | init_thread_list (); | |
c1ee2fb3 | 1048 | inf_child_mourn_inferior (ops); |
61bb466e KW |
1049 | } |
1050 | ||
1051 | /* This function breaks up an argument string into an argument | |
1052 | vector suitable for passing to execvp(). | |
1053 | E.g., on "run a b c d" this routine would get as input | |
1054 | the string "a b c d", and as output it would fill in argv with | |
1055 | the four arguments "a", "b", "c", "d". The only additional | |
1056 | functionality is simple quoting. The gdb command: | |
1057 | run a "b c d" f | |
1058 | will fill in argv with the three args "a", "b c d", "e". */ | |
1059 | static void | |
1060 | breakup_args (char *scratch, char **argv) | |
1061 | { | |
1062 | char *pp, *cp = scratch; | |
1063 | char quoting = 0; | |
1064 | ||
1065 | for (;;) | |
1066 | { | |
1067 | /* Scan past leading separators. */ | |
1068 | quoting = 0; | |
1069 | while (*cp == ' ' || *cp == '\t' || *cp == '\n') | |
1070 | cp++; | |
1071 | ||
1072 | /* Break if at end of string. */ | |
1073 | if (*cp == '\0') | |
1074 | break; | |
1075 | ||
1076 | /* Take an arg. */ | |
1077 | if (*cp == '"') | |
1078 | { | |
1079 | cp++; | |
1080 | quoting = strchr (cp, '"') ? 1 : 0; | |
1081 | } | |
1082 | ||
1083 | *argv++ = cp; | |
1084 | ||
1085 | /* Scan for next arg separator. */ | |
1086 | pp = cp; | |
1087 | if (quoting) | |
1088 | cp = strchr (pp, '"'); | |
1089 | if ((cp == NULL) || (!quoting)) | |
1090 | cp = strchr (pp, ' '); | |
1091 | if (cp == NULL) | |
1092 | cp = strchr (pp, '\t'); | |
1093 | if (cp == NULL) | |
1094 | cp = strchr (pp, '\n'); | |
1095 | ||
1096 | /* No separators => end of string => break. */ | |
1097 | if (cp == NULL) | |
1098 | { | |
1099 | pp = cp; | |
1100 | break; | |
1101 | } | |
1102 | ||
1103 | /* Replace the separator with a terminator. */ | |
1104 | *cp++ = '\0'; | |
1105 | } | |
1106 | ||
1107 | /* Execv requires a null-terminated arg vector. */ | |
1108 | *argv = NULL; | |
1109 | } | |
1110 | ||
1111 | static void | |
136d6dae VP |
1112 | procfs_create_inferior (struct target_ops *ops, char *exec_file, |
1113 | char *allargs, char **env, int from_tty) | |
61bb466e KW |
1114 | { |
1115 | struct inheritance inherit; | |
1116 | pid_t pid; | |
1117 | int flags, errn; | |
1118 | char **argv, *args; | |
3cb3b8df | 1119 | const char *in = "", *out = "", *err = ""; |
61bb466e KW |
1120 | int fd, fds[3]; |
1121 | sigset_t set; | |
3cb3b8df | 1122 | const char *inferior_io_terminal = get_inferior_io_terminal (); |
3fdfcbf1 | 1123 | struct inferior *inf; |
61bb466e KW |
1124 | |
1125 | argv = xmalloc (((strlen (allargs) + 1) / (unsigned) 2 + 2) * | |
1126 | sizeof (*argv)); | |
1127 | argv[0] = get_exec_file (1); | |
1128 | if (!argv[0]) | |
1129 | { | |
1130 | if (exec_file) | |
1131 | argv[0] = exec_file; | |
1132 | else | |
1133 | return; | |
1134 | } | |
1135 | ||
1136 | args = xstrdup (allargs); | |
609c3040 | 1137 | breakup_args (args, (exec_file != NULL) ? &argv[1] : &argv[0]); |
61bb466e KW |
1138 | |
1139 | argv = nto_parse_redirection (argv, &in, &out, &err); | |
1140 | ||
1141 | fds[0] = STDIN_FILENO; | |
1142 | fds[1] = STDOUT_FILENO; | |
1143 | fds[2] = STDERR_FILENO; | |
1144 | ||
1145 | /* If the user specified I/O via gdb's --tty= arg, use it, but only | |
1146 | if the i/o is not also being specified via redirection. */ | |
1147 | if (inferior_io_terminal) | |
1148 | { | |
1149 | if (!in[0]) | |
1150 | in = inferior_io_terminal; | |
1151 | if (!out[0]) | |
1152 | out = inferior_io_terminal; | |
1153 | if (!err[0]) | |
1154 | err = inferior_io_terminal; | |
1155 | } | |
1156 | ||
1157 | if (in[0]) | |
1158 | { | |
1159 | fd = open (in, O_RDONLY); | |
1160 | if (fd == -1) | |
1161 | perror (in); | |
1162 | else | |
1163 | fds[0] = fd; | |
1164 | } | |
1165 | if (out[0]) | |
1166 | { | |
1167 | fd = open (out, O_WRONLY); | |
1168 | if (fd == -1) | |
1169 | perror (out); | |
1170 | else | |
1171 | fds[1] = fd; | |
1172 | } | |
1173 | if (err[0]) | |
1174 | { | |
1175 | fd = open (err, O_WRONLY); | |
1176 | if (fd == -1) | |
1177 | perror (err); | |
1178 | else | |
1179 | fds[2] = fd; | |
1180 | } | |
1181 | ||
1182 | /* Clear any pending SIGUSR1's but keep the behavior the same. */ | |
1183 | signal (SIGUSR1, signal (SIGUSR1, SIG_IGN)); | |
1184 | ||
1185 | sigemptyset (&set); | |
1186 | sigaddset (&set, SIGUSR1); | |
1187 | sigprocmask (SIG_UNBLOCK, &set, NULL); | |
1188 | ||
1189 | memset (&inherit, 0, sizeof (inherit)); | |
1190 | ||
1191 | if (ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) != 0) | |
1192 | { | |
d737fd7f | 1193 | inherit.nd = nto_node (); |
61bb466e KW |
1194 | inherit.flags |= SPAWN_SETND; |
1195 | inherit.flags &= ~SPAWN_EXEC; | |
1196 | } | |
1197 | inherit.flags |= SPAWN_SETGROUP | SPAWN_HOLD; | |
1198 | inherit.pgroup = SPAWN_NEWPGROUP; | |
1199 | pid = spawnp (argv[0], 3, fds, &inherit, argv, | |
1200 | ND_NODE_CMP (nto_procfs_node, ND_LOCAL_NODE) == 0 ? env : 0); | |
1201 | xfree (args); | |
1202 | ||
1203 | sigprocmask (SIG_BLOCK, &set, NULL); | |
1204 | ||
1205 | if (pid == -1) | |
8a3fe4f8 | 1206 | error (_("Error spawning %s: %d (%s)"), argv[0], errno, |
d737fd7f | 1207 | safe_strerror (errno)); |
61bb466e KW |
1208 | |
1209 | if (fds[0] != STDIN_FILENO) | |
1210 | close (fds[0]); | |
1211 | if (fds[1] != STDOUT_FILENO) | |
1212 | close (fds[1]); | |
1213 | if (fds[2] != STDERR_FILENO) | |
1214 | close (fds[2]); | |
1215 | ||
1216 | inferior_ptid = do_attach (pid_to_ptid (pid)); | |
e8032dde | 1217 | procfs_update_thread_list (ops); |
61bb466e | 1218 | |
6c95b8df PA |
1219 | inf = current_inferior (); |
1220 | inferior_appeared (inf, pid); | |
3fdfcbf1 | 1221 | inf->attach_flag = 0; |
7f9f62ba | 1222 | |
61bb466e KW |
1223 | flags = _DEBUG_FLAG_KLC; /* Kill-on-Last-Close flag. */ |
1224 | errn = devctl (ctl_fd, DCMD_PROC_SET_FLAG, &flags, sizeof (flags), 0); | |
1225 | if (errn != EOK) | |
1226 | { | |
1227 | /* FIXME: expected warning? */ | |
1228 | /* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n", | |
1229 | errn, strerror(errn) ); */ | |
1230 | } | |
6a3cb8e8 PA |
1231 | if (!target_is_pushed (ops)) |
1232 | push_target (ops); | |
61bb466e KW |
1233 | target_terminal_init (); |
1234 | ||
61bb466e KW |
1235 | if (exec_bfd != NULL |
1236 | || (symfile_objfile != NULL && symfile_objfile->obfd != NULL)) | |
268a4a75 | 1237 | solib_create_inferior_hook (0); |
61bb466e KW |
1238 | } |
1239 | ||
1240 | static void | |
bfedc46a | 1241 | procfs_interrupt (struct target_ops *self, ptid_t ptid) |
61bb466e KW |
1242 | { |
1243 | devctl (ctl_fd, DCMD_PROC_STOP, NULL, 0, 0); | |
1244 | } | |
1245 | ||
1246 | static void | |
7d85a9c0 | 1247 | procfs_kill_inferior (struct target_ops *ops) |
61bb466e KW |
1248 | { |
1249 | target_mourn_inferior (); | |
1250 | } | |
1251 | ||
61bb466e KW |
1252 | /* Fill buf with regset and return devctl cmd to do the setting. Return |
1253 | -1 if we fail to get the regset. Store size of regset in regsize. */ | |
1254 | static int | |
1255 | get_regset (int regset, char *buf, int bufsize, int *regsize) | |
1256 | { | |
1257 | int dev_get, dev_set; | |
1258 | switch (regset) | |
1259 | { | |
1260 | case NTO_REG_GENERAL: | |
1261 | dev_get = DCMD_PROC_GETGREG; | |
1262 | dev_set = DCMD_PROC_SETGREG; | |
1263 | break; | |
1264 | ||
1265 | case NTO_REG_FLOAT: | |
1266 | dev_get = DCMD_PROC_GETFPREG; | |
1267 | dev_set = DCMD_PROC_SETFPREG; | |
1268 | break; | |
1269 | ||
1270 | case NTO_REG_ALT: | |
1271 | dev_get = DCMD_PROC_GETALTREG; | |
1272 | dev_set = DCMD_PROC_SETALTREG; | |
1273 | break; | |
1274 | ||
1275 | case NTO_REG_SYSTEM: | |
1276 | default: | |
1277 | return -1; | |
1278 | } | |
97c44116 | 1279 | if (devctl (ctl_fd, dev_get, buf, bufsize, regsize) != EOK) |
61bb466e KW |
1280 | return -1; |
1281 | ||
1282 | return dev_set; | |
1283 | } | |
1284 | ||
774ee6d2 | 1285 | static void |
28439f5e PA |
1286 | procfs_store_registers (struct target_ops *ops, |
1287 | struct regcache *regcache, int regno) | |
61bb466e KW |
1288 | { |
1289 | union | |
1290 | { | |
1291 | procfs_greg greg; | |
1292 | procfs_fpreg fpreg; | |
1293 | procfs_altreg altreg; | |
1294 | } | |
1295 | reg; | |
1296 | unsigned off; | |
1297 | int len, regset, regsize, dev_set, err; | |
1298 | char *data; | |
1299 | ||
1300 | if (ptid_equal (inferior_ptid, null_ptid)) | |
1301 | return; | |
1302 | procfs_set_thread (inferior_ptid); | |
1303 | ||
1304 | if (regno == -1) | |
1305 | { | |
1306 | for (regset = NTO_REG_GENERAL; regset < NTO_REG_END; regset++) | |
1307 | { | |
1308 | dev_set = get_regset (regset, (char *) ®, | |
1309 | sizeof (reg), ®size); | |
1310 | if (dev_set == -1) | |
1311 | continue; | |
1312 | ||
56be3814 | 1313 | if (nto_regset_fill (regcache, regset, (char *) ®) == -1) |
61bb466e KW |
1314 | continue; |
1315 | ||
1316 | err = devctl (ctl_fd, dev_set, ®, regsize, 0); | |
1317 | if (err != EOK) | |
1318 | fprintf_unfiltered (gdb_stderr, | |
1319 | "Warning unable to write regset %d: %s\n", | |
dc5dd1eb | 1320 | regno, safe_strerror (err)); |
61bb466e KW |
1321 | } |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | regset = nto_regset_id (regno); | |
1326 | if (regset == -1) | |
1327 | return; | |
1328 | ||
1329 | dev_set = get_regset (regset, (char *) ®, sizeof (reg), ®size); | |
1330 | if (dev_set == -1) | |
1331 | return; | |
1332 | ||
60441ab9 UW |
1333 | len = nto_register_area (get_regcache_arch (regcache), |
1334 | regno, regset, &off); | |
61bb466e KW |
1335 | |
1336 | if (len < 1) | |
1337 | return; | |
1338 | ||
56be3814 | 1339 | regcache_raw_collect (regcache, regno, (char *) ® + off); |
61bb466e KW |
1340 | |
1341 | err = devctl (ctl_fd, dev_set, ®, regsize, 0); | |
1342 | if (err != EOK) | |
1343 | fprintf_unfiltered (gdb_stderr, | |
1344 | "Warning unable to write regset %d: %s\n", regno, | |
dc5dd1eb | 1345 | safe_strerror (err)); |
61bb466e KW |
1346 | } |
1347 | } | |
1348 | ||
2455069d UW |
1349 | /* Set list of signals to be handled in the target. */ |
1350 | ||
61bb466e | 1351 | static void |
94bedb42 TT |
1352 | procfs_pass_signals (struct target_ops *self, |
1353 | int numsigs, unsigned char *pass_signals) | |
61bb466e KW |
1354 | { |
1355 | int signo; | |
1356 | ||
2455069d UW |
1357 | sigfillset (&run.trace); |
1358 | ||
61bb466e KW |
1359 | for (signo = 1; signo < NSIG; signo++) |
1360 | { | |
2ea28649 | 1361 | int target_signo = gdb_signal_from_host (signo); |
2455069d UW |
1362 | if (target_signo < numsigs && pass_signals[target_signo]) |
1363 | sigdelset (&run.trace, signo); | |
61bb466e KW |
1364 | } |
1365 | } | |
1366 | ||
94c74239 | 1367 | static char * |
117de6a9 | 1368 | procfs_pid_to_str (struct target_ops *ops, ptid_t ptid) |
61bb466e KW |
1369 | { |
1370 | static char buf[1024]; | |
1371 | int pid, tid, n; | |
1372 | struct tidinfo *tip; | |
1373 | ||
1374 | pid = ptid_get_pid (ptid); | |
1375 | tid = ptid_get_tid (ptid); | |
1376 | ||
dc5dd1eb | 1377 | n = snprintf (buf, 1023, "process %d", pid); |
61bb466e KW |
1378 | |
1379 | #if 0 /* NYI */ | |
1380 | tip = procfs_thread_info (pid, tid); | |
1381 | if (tip != NULL) | |
dc5dd1eb | 1382 | snprintf (&buf[n], 1023, " (state = 0x%02x)", tip->state); |
61bb466e KW |
1383 | #endif |
1384 | ||
1385 | return buf; | |
1386 | } | |
1387 | ||
132f8e03 PA |
1388 | /* to_can_run implementation for "target procfs". Note this really |
1389 | means "can this target be the default run target", which there can | |
1390 | be only one, and we make it be "target native" like other ports. | |
1391 | "target procfs <node>" wouldn't make sense as default run target, as | |
1392 | it needs <node>. */ | |
ee8e9165 | 1393 | |
132f8e03 PA |
1394 | static int |
1395 | procfs_can_run (struct target_ops *self) | |
1396 | { | |
1397 | return 0; | |
1398 | } | |
1399 | ||
1400 | /* "target procfs". */ | |
1401 | static struct target_ops nto_procfs_ops; | |
1402 | ||
6a3cb8e8 PA |
1403 | /* "target native". */ |
1404 | static struct target_ops *nto_native_ops; | |
1405 | ||
1406 | /* to_open implementation for "target procfs". */ | |
1407 | ||
1408 | static void | |
014f9477 | 1409 | procfs_open (const char *arg, int from_tty) |
6a3cb8e8 PA |
1410 | { |
1411 | procfs_open_1 (&nto_procfs_ops, arg, from_tty); | |
1412 | } | |
1413 | ||
1414 | /* to_open implementation for "target native". */ | |
1415 | ||
1416 | static void | |
014f9477 | 1417 | procfs_native_open (const char *arg, int from_tty) |
6a3cb8e8 PA |
1418 | { |
1419 | procfs_open_1 (nto_native_ops, arg, from_tty); | |
1420 | } | |
1421 | ||
132f8e03 PA |
1422 | /* Create the "native" and "procfs" targets. */ |
1423 | ||
1424 | static void | |
1425 | init_procfs_targets (void) | |
61bb466e | 1426 | { |
ee8e9165 PA |
1427 | struct target_ops *t = inf_child_target (); |
1428 | ||
132f8e03 PA |
1429 | /* Leave to_shortname as "native". */ |
1430 | t->to_longname = "QNX Neutrino local process"; | |
1431 | t->to_doc = "QNX Neutrino local process (started by the \"run\" command)."; | |
6a3cb8e8 | 1432 | t->to_open = procfs_native_open; |
ee8e9165 PA |
1433 | t->to_attach = procfs_attach; |
1434 | t->to_post_attach = procfs_post_attach; | |
1435 | t->to_detach = procfs_detach; | |
1436 | t->to_resume = procfs_resume; | |
1437 | t->to_wait = procfs_wait; | |
1438 | t->to_fetch_registers = procfs_fetch_registers; | |
1439 | t->to_store_registers = procfs_store_registers; | |
1440 | t->to_xfer_partial = procfs_xfer_partial; | |
1441 | t->to_files_info = procfs_files_info; | |
1442 | t->to_insert_breakpoint = procfs_insert_breakpoint; | |
1443 | t->to_remove_breakpoint = procfs_remove_breakpoint; | |
1444 | t->to_can_use_hw_breakpoint = procfs_can_use_hw_breakpoint; | |
1445 | t->to_insert_hw_breakpoint = procfs_insert_hw_breakpoint; | |
1446 | t->to_remove_hw_breakpoint = procfs_remove_hw_breakpoint; | |
1447 | t->to_insert_watchpoint = procfs_insert_hw_watchpoint; | |
1448 | t->to_remove_watchpoint = procfs_remove_hw_watchpoint; | |
1449 | t->to_stopped_by_watchpoint = procfs_stopped_by_watchpoint; | |
1450 | t->to_kill = procfs_kill_inferior; | |
1451 | t->to_create_inferior = procfs_create_inferior; | |
1452 | t->to_mourn_inferior = procfs_mourn_inferior; | |
1453 | t->to_pass_signals = procfs_pass_signals; | |
1454 | t->to_thread_alive = procfs_thread_alive; | |
e8032dde | 1455 | t->to_update_thread_list = procfs_update_thread_list; |
ee8e9165 | 1456 | t->to_pid_to_str = procfs_pid_to_str; |
bfedc46a | 1457 | t->to_interrupt = procfs_interrupt; |
ee8e9165 PA |
1458 | t->to_have_continuable_watchpoint = 1; |
1459 | t->to_extra_thread_info = nto_extra_thread_info; | |
1460 | ||
6a3cb8e8 PA |
1461 | nto_native_ops = t; |
1462 | ||
132f8e03 PA |
1463 | /* Register "target native". This is the default run target. */ |
1464 | add_target (t); | |
1465 | ||
1466 | /* Register "target procfs <node>". */ | |
1467 | nto_procfs_ops = *t; | |
1468 | nto_procfs_ops.to_shortname = "procfs"; | |
1469 | nto_procfs_ops.to_can_run = procfs_can_run; | |
1470 | t->to_longname = "QNX Neutrino local or remote process"; | |
1471 | t->to_doc = "QNX Neutrino process. target procfs <node>"; | |
6a3cb8e8 PA |
1472 | t->to_open = procfs_open; |
1473 | ||
132f8e03 | 1474 | add_target (&nto_procfs_ops); |
61bb466e KW |
1475 | } |
1476 | ||
1477 | #define OSTYPE_NTO 1 | |
1478 | ||
774ee6d2 AR |
1479 | extern initialize_file_ftype _initialize_procfs; |
1480 | ||
61bb466e | 1481 | void |
dc5dd1eb | 1482 | _initialize_procfs (void) |
61bb466e KW |
1483 | { |
1484 | sigset_t set; | |
1485 | ||
132f8e03 | 1486 | init_procfs_targets (); |
61bb466e KW |
1487 | |
1488 | /* We use SIGUSR1 to gain control after we block waiting for a process. | |
1489 | We use sigwaitevent to wait. */ | |
1490 | sigemptyset (&set); | |
1491 | sigaddset (&set, SIGUSR1); | |
1492 | sigprocmask (SIG_BLOCK, &set, NULL); | |
1493 | ||
2455069d UW |
1494 | /* Initially, make sure all signals are reported. */ |
1495 | sigfillset (&run.trace); | |
61bb466e KW |
1496 | |
1497 | /* Stuff some information. */ | |
1498 | nto_cpuinfo_flags = SYSPAGE_ENTRY (cpuinfo)->flags; | |
1499 | nto_cpuinfo_valid = 1; | |
1500 | ||
1bedd215 AC |
1501 | add_info ("pidlist", procfs_pidlist, _("pidlist")); |
1502 | add_info ("meminfo", procfs_meminfo, _("memory information")); | |
d737fd7f KW |
1503 | |
1504 | nto_is_nto_target = procfs_is_nto_target; | |
61bb466e KW |
1505 | } |
1506 | ||
1507 | ||
1508 | static int | |
f486487f | 1509 | procfs_hw_watchpoint (int addr, int len, enum target_hw_bp_type type) |
61bb466e KW |
1510 | { |
1511 | procfs_break brk; | |
1512 | ||
1513 | switch (type) | |
1514 | { | |
f486487f | 1515 | case hw_read: |
61bb466e KW |
1516 | brk.type = _DEBUG_BREAK_RD; |
1517 | break; | |
f486487f | 1518 | case hw_access: |
61bb466e KW |
1519 | brk.type = _DEBUG_BREAK_RW; |
1520 | break; | |
1521 | default: /* Modify. */ | |
1522 | /* FIXME: brk.type = _DEBUG_BREAK_RWM gives EINVAL for some reason. */ | |
1523 | brk.type = _DEBUG_BREAK_RW; | |
1524 | } | |
1525 | brk.type |= _DEBUG_BREAK_HW; /* Always ask for HW. */ | |
1526 | brk.addr = addr; | |
1527 | brk.size = len; | |
1528 | ||
1529 | errno = devctl (ctl_fd, DCMD_PROC_BREAK, &brk, sizeof (brk), 0); | |
1530 | if (errno != EOK) | |
1531 | { | |
9b20d036 | 1532 | perror (_("Failed to set hardware watchpoint")); |
61bb466e KW |
1533 | return -1; |
1534 | } | |
1535 | return 0; | |
1536 | } | |
1537 | ||
1538 | static int | |
5461485a | 1539 | procfs_can_use_hw_breakpoint (struct target_ops *self, |
f486487f SM |
1540 | enum bptype type, |
1541 | int cnt, int othertype) | |
61bb466e KW |
1542 | { |
1543 | return 1; | |
1544 | } | |
1545 | ||
1546 | static int | |
11b5219a | 1547 | procfs_remove_hw_watchpoint (struct target_ops *self, |
f486487f SM |
1548 | CORE_ADDR addr, int len, |
1549 | enum target_hw_bp_type type, | |
0cf6dd15 | 1550 | struct expression *cond) |
61bb466e KW |
1551 | { |
1552 | return procfs_hw_watchpoint (addr, -1, type); | |
1553 | } | |
1554 | ||
1555 | static int | |
7bb99c53 | 1556 | procfs_insert_hw_watchpoint (struct target_ops *self, |
f486487f SM |
1557 | CORE_ADDR addr, int len, |
1558 | enum target_hw_bp_type type, | |
0cf6dd15 | 1559 | struct expression *cond) |
61bb466e KW |
1560 | { |
1561 | return procfs_hw_watchpoint (addr, len, type); | |
1562 | } | |
1563 | ||
1564 | static int | |
6a109b6b | 1565 | procfs_stopped_by_watchpoint (struct target_ops *ops) |
61bb466e KW |
1566 | { |
1567 | return 0; | |
1568 | } |