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