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8fc2b417 | 1 | /* Low level interface for debugging Solaris threads for GDB, the GNU debugger. |
f0fce3b8 | 2 | Copyright 1996, 1997, 1998 Free Software Foundation, Inc. |
8fc2b417 SG |
3 | |
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
a50cedad SG |
20 | /* This module implements a sort of half target that sits between the |
21 | machine-independent parts of GDB and the /proc interface (procfs.c) to | |
22 | provide access to the Solaris user-mode thread implementation. | |
23 | ||
24 | Solaris threads are true user-mode threads, which are invoked via the thr_* | |
25 | and pthread_* (native and Posix respectivly) interfaces. These are mostly | |
26 | implemented in user-space, with all thread context kept in various | |
27 | structures that live in the user's heap. These should not be confused with | |
28 | lightweight processes (LWPs), which are implemented by the kernel, and | |
29 | scheduled without explicit intervention by the process. | |
30 | ||
31 | Just to confuse things a little, Solaris threads (both native and Posix) are | |
32 | actually implemented using LWPs. In general, there are going to be more | |
33 | threads than LWPs. There is no fixed correspondence between a thread and an | |
34 | LWP. When a thread wants to run, it gets scheduled onto the first available | |
35 | LWP and can therefore migrate from one LWP to another as time goes on. A | |
36 | sleeping thread may not be associated with an LWP at all! | |
37 | ||
38 | To make it possible to mess with threads, Sun provides a library called | |
39 | libthread_db.so.1 (not to be confused with libthread_db.so.0, which doesn't | |
40 | have a published interface). This interface has an upper part, which it | |
41 | provides, and a lower part which I provide. The upper part consists of the | |
42 | td_* routines, which allow me to find all the threads, query their state, | |
43 | etc... The lower part consists of all of the ps_*, which are used by the | |
44 | td_* routines to read/write memory, manipulate LWPs, lookup symbols, etc... | |
45 | The ps_* routines actually do most of their work by calling functions in | |
46 | procfs.c. */ | |
47 | ||
8fc2b417 | 48 | #include "defs.h" |
934741a1 | 49 | #include <thread.h> |
8fc2b417 SG |
50 | #include <proc_service.h> |
51 | #include <thread_db.h> | |
fdfa3315 | 52 | #include "gdbthread.h" |
8fc2b417 SG |
53 | #include "target.h" |
54 | #include "inferior.h" | |
55 | #include <fcntl.h> | |
56 | #include <unistd.h> | |
57 | #include <sys/stat.h> | |
4915acad | 58 | #include <dlfcn.h> |
0f5b751a | 59 | #include "gdbcmd.h" |
8fc2b417 | 60 | |
8fc2b417 | 61 | extern struct target_ops sol_thread_ops; /* Forward declaration */ |
0274a484 DT |
62 | extern struct target_ops sol_core_ops; /* Forward declaration */ |
63 | ||
64 | /* place to store core_ops before we overwrite it */ | |
65 | static struct target_ops orig_core_ops; | |
8fc2b417 SG |
66 | |
67 | extern int procfs_suppress_run; | |
934741a1 | 68 | extern struct target_ops procfs_ops; /* target vector for procfs.c */ |
0274a484 | 69 | extern struct target_ops core_ops; /* target vector for corelow.c */ |
3780c337 | 70 | extern char *procfs_pid_to_str PARAMS ((int pid)); |
934741a1 | 71 | |
a50cedad SG |
72 | /* Note that these prototypes differ slightly from those used in procfs.c |
73 | for of two reasons. One, we can't use gregset_t, as that's got a whole | |
74 | different meaning under Solaris (also, see above). Two, we can't use the | |
75 | pointer form here as these are actually arrays of ints (for Sparc's at | |
76 | least), and are automatically coerced into pointers to ints when used as | |
77 | parameters. That makes it impossible to avoid a compiler warning when | |
78 | passing pr{g fp}regset_t's from a parameter to an argument of one of | |
79 | these functions. */ | |
80 | ||
934741a1 SG |
81 | extern void supply_gregset PARAMS ((const prgregset_t)); |
82 | extern void fill_gregset PARAMS ((prgregset_t, int)); | |
2d24a021 FN |
83 | extern void supply_fpregset PARAMS ((const prfpregset_t *)); |
84 | extern void fill_fpregset PARAMS ((prfpregset_t *, int)); | |
8fc2b417 | 85 | |
a50cedad SG |
86 | /* This struct is defined by us, but mainly used for the proc_service interface. |
87 | We don't have much use for it, except as a handy place to get a real pid | |
88 | for memory accesses. */ | |
89 | ||
8fc2b417 SG |
90 | struct ps_prochandle |
91 | { | |
92 | pid_t pid; | |
93 | }; | |
94 | ||
934741a1 SG |
95 | struct string_map |
96 | { | |
97 | int num; | |
98 | char *str; | |
99 | }; | |
100 | ||
8fc2b417 SG |
101 | static struct ps_prochandle main_ph; |
102 | static td_thragent_t *main_ta; | |
8fc2b417 SG |
103 | static int sol_thread_active = 0; |
104 | ||
934741a1 SG |
105 | static struct cleanup * save_inferior_pid PARAMS ((void)); |
106 | static void restore_inferior_pid PARAMS ((int pid)); | |
107 | static char *td_err_string PARAMS ((td_err_e errcode)); | |
108 | static char *td_state_string PARAMS ((td_thr_state_e statecode)); | |
3780c337 | 109 | static int thread_to_lwp PARAMS ((int thread_id, int default_lwp)); |
934741a1 SG |
110 | static void sol_thread_resume PARAMS ((int pid, int step, |
111 | enum target_signal signo)); | |
112 | static int lwp_to_thread PARAMS ((int lwp)); | |
3780c337 | 113 | static int sol_thread_alive PARAMS ((int pid)); |
0274a484 | 114 | static void sol_core_close PARAMS ((int quitting)); |
934741a1 SG |
115 | |
116 | #define THREAD_FLAG 0x80000000 | |
117 | #define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0) | |
118 | #define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0) | |
119 | #define GET_LWP(LWP_ID) (TIDGET(LWP_ID)) | |
120 | #define GET_THREAD(THREAD_ID) (((THREAD_ID) >> 16) & 0x7fff) | |
121 | #define BUILD_LWP(LWP_ID, PID) ((LWP_ID) << 16 | (PID)) | |
122 | #define BUILD_THREAD(THREAD_ID, PID) (THREAD_FLAG | BUILD_LWP (THREAD_ID, PID)) | |
4915acad SG |
123 | |
124 | /* Pointers to routines from lithread_db resolved by dlopen() */ | |
125 | ||
126 | static void | |
127 | (*p_td_log) (const int on_off); | |
128 | static td_err_e | |
129 | (*p_td_ta_new) (const struct ps_prochandle *ph_p, td_thragent_t **ta_pp); | |
130 | static td_err_e | |
131 | (*p_td_ta_delete) (td_thragent_t *ta_p); | |
132 | static td_err_e | |
133 | (*p_td_init) (void); | |
134 | static td_err_e | |
135 | (*p_td_ta_get_ph) (const td_thragent_t *ta_p, struct ps_prochandle **ph_pp); | |
136 | static td_err_e | |
137 | (*p_td_ta_get_nthreads) (const td_thragent_t *ta_p, int *nthread_p); | |
138 | static td_err_e | |
139 | (*p_td_ta_tsd_iter) (const td_thragent_t *ta_p, td_key_iter_f *cb, void *cbdata_p); | |
140 | static td_err_e | |
141 | (*p_td_ta_thr_iter) (const td_thragent_t *ta_p, td_thr_iter_f *cb, void *cbdata_p, td_thr_state_e state, | |
142 | int ti_pri, sigset_t *ti_sigmask_p, unsigned ti_user_flags); | |
143 | static td_err_e | |
144 | (*p_td_thr_validate) (const td_thrhandle_t *th_p); | |
145 | static td_err_e | |
146 | (*p_td_thr_tsd) (const td_thrhandle_t *th_p, const thread_key_t key, void **data_pp); | |
147 | static td_err_e | |
148 | (*p_td_thr_get_info) (const td_thrhandle_t *th_p, td_thrinfo_t *ti_p); | |
149 | static td_err_e | |
150 | (*p_td_thr_getfpregs) (const td_thrhandle_t *th_p, prfpregset_t *fpregset); | |
151 | static td_err_e | |
152 | (*p_td_thr_getxregsize) (const td_thrhandle_t *th_p, int *xregsize); | |
153 | static td_err_e | |
154 | (*p_td_thr_getxregs) (const td_thrhandle_t *th_p, const caddr_t xregset); | |
155 | static td_err_e | |
156 | (*p_td_thr_sigsetmask) (const td_thrhandle_t *th_p, const sigset_t ti_sigmask); | |
157 | static td_err_e | |
158 | (*p_td_thr_setprio) (const td_thrhandle_t *th_p, const int ti_pri); | |
159 | static td_err_e | |
160 | (*p_td_thr_setsigpending) (const td_thrhandle_t *th_p, const uchar_t ti_pending_flag, const sigset_t ti_pending); | |
161 | static td_err_e | |
162 | (*p_td_thr_setfpregs) (const td_thrhandle_t *th_p, const prfpregset_t *fpregset); | |
163 | static td_err_e | |
164 | (*p_td_thr_setxregs) (const td_thrhandle_t *th_p, const caddr_t xregset); | |
165 | static td_err_e | |
166 | (*p_td_ta_map_id2thr) (const td_thragent_t *ta_p, thread_t tid, td_thrhandle_t *th_p); | |
167 | static td_err_e | |
168 | (*p_td_ta_map_lwp2thr) (const td_thragent_t *ta_p, lwpid_t lwpid, td_thrhandle_t *th_p); | |
169 | static td_err_e | |
170 | (*p_td_thr_getgregs) (const td_thrhandle_t *th_p, prgregset_t regset); | |
171 | static td_err_e | |
172 | (*p_td_thr_setgregs) (const td_thrhandle_t *th_p, const prgregset_t regset); | |
8fc2b417 | 173 | \f |
934741a1 SG |
174 | /* |
175 | ||
176 | LOCAL FUNCTION | |
177 | ||
178 | td_err_string - Convert a thread_db error code to a string | |
179 | ||
180 | SYNOPSIS | |
181 | ||
182 | char * td_err_string (errcode) | |
183 | ||
184 | DESCRIPTION | |
185 | ||
186 | Return the thread_db error string associated with errcode. If errcode | |
187 | is unknown, then return a message. | |
188 | ||
189 | */ | |
190 | ||
191 | static char * | |
192 | td_err_string (errcode) | |
193 | td_err_e errcode; | |
194 | { | |
195 | static struct string_map | |
196 | td_err_table[] = { | |
197 | {TD_OK, "generic \"call succeeded\""}, | |
198 | {TD_ERR, "generic error."}, | |
199 | {TD_NOTHR, "no thread can be found to satisfy query"}, | |
200 | {TD_NOSV, "no synch. variable can be found to satisfy query"}, | |
201 | {TD_NOLWP, "no lwp can be found to satisfy query"}, | |
202 | {TD_BADPH, "invalid process handle"}, | |
203 | {TD_BADTH, "invalid thread handle"}, | |
204 | {TD_BADSH, "invalid synchronization handle"}, | |
205 | {TD_BADTA, "invalid thread agent"}, | |
206 | {TD_BADKEY, "invalid key"}, | |
207 | {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"}, | |
208 | {TD_NOFPREGS, "FPU register set not available for given thread"}, | |
209 | {TD_NOLIBTHREAD, "application not linked with libthread"}, | |
210 | {TD_NOEVENT, "requested event is not supported"}, | |
211 | {TD_NOCAPAB, "capability not available"}, | |
212 | {TD_DBERR, "Debugger service failed"}, | |
213 | {TD_NOAPLIC, "Operation not applicable to"}, | |
214 | {TD_NOTSD, "No thread specific data for this thread"}, | |
215 | {TD_MALLOC, "Malloc failed"}, | |
216 | {TD_PARTIALREG, "Only part of register set was writen/read"}, | |
217 | {TD_NOXREGS, "X register set not available for given thread"} | |
218 | }; | |
219 | const int td_err_size = sizeof td_err_table / sizeof (struct string_map); | |
220 | int i; | |
221 | static char buf[50]; | |
222 | ||
223 | for (i = 0; i < td_err_size; i++) | |
224 | if (td_err_table[i].num == errcode) | |
225 | return td_err_table[i].str; | |
226 | ||
227 | sprintf (buf, "Unknown thread_db error code: %d", errcode); | |
8fc2b417 | 228 | |
934741a1 SG |
229 | return buf; |
230 | } | |
231 | \f | |
232 | /* | |
8fc2b417 | 233 | |
934741a1 | 234 | LOCAL FUNCTION |
8fc2b417 | 235 | |
934741a1 SG |
236 | td_state_string - Convert a thread_db state code to a string |
237 | ||
238 | SYNOPSIS | |
239 | ||
240 | char * td_state_string (statecode) | |
241 | ||
242 | DESCRIPTION | |
243 | ||
244 | Return the thread_db state string associated with statecode. If | |
245 | statecode is unknown, then return a message. | |
246 | ||
247 | */ | |
248 | ||
249 | static char * | |
250 | td_state_string (statecode) | |
251 | td_thr_state_e statecode; | |
252 | { | |
253 | static struct string_map | |
254 | td_thr_state_table[] = { | |
255 | {TD_THR_ANY_STATE, "any state"}, | |
256 | {TD_THR_UNKNOWN, "unknown"}, | |
257 | {TD_THR_STOPPED, "stopped"}, | |
258 | {TD_THR_RUN, "run"}, | |
259 | {TD_THR_ACTIVE, "active"}, | |
260 | {TD_THR_ZOMBIE, "zombie"}, | |
261 | {TD_THR_SLEEP, "sleep"}, | |
262 | {TD_THR_STOPPED_ASLEEP, "stopped asleep"} | |
263 | }; | |
264 | const int td_thr_state_table_size = sizeof td_thr_state_table / sizeof (struct string_map); | |
265 | int i; | |
266 | static char buf[50]; | |
267 | ||
268 | for (i = 0; i < td_thr_state_table_size; i++) | |
269 | if (td_thr_state_table[i].num == statecode) | |
270 | return td_thr_state_table[i].str; | |
271 | ||
272 | sprintf (buf, "Unknown thread_db state code: %d", statecode); | |
273 | ||
274 | return buf; | |
275 | } | |
276 | \f | |
277 | /* | |
278 | ||
279 | LOCAL FUNCTION | |
280 | ||
281 | thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id. | |
282 | ||
283 | SYNOPSIS | |
284 | ||
285 | int thread_to_lwp (thread_id, default_lwp) | |
286 | ||
287 | DESCRIPTION | |
288 | ||
289 | This function converts a Posix or Solaris thread id to a lightweight | |
290 | process id. If thread_id is non-existent, that's an error. If it's | |
291 | an inactive thread, then we return default_lwp. | |
292 | ||
293 | NOTES | |
294 | ||
295 | This function probably shouldn't call error()... | |
296 | ||
297 | */ | |
8fc2b417 SG |
298 | |
299 | static int | |
300 | thread_to_lwp (thread_id, default_lwp) | |
301 | int thread_id; | |
302 | int default_lwp; | |
303 | { | |
304 | td_thrinfo_t ti; | |
305 | td_thrhandle_t th; | |
306 | td_err_e val; | |
8fc2b417 | 307 | |
934741a1 | 308 | if (is_lwp (thread_id)) |
8fc2b417 SG |
309 | return thread_id; /* It's already an LWP id */ |
310 | ||
311 | /* It's a thread. Convert to lwp */ | |
312 | ||
3780c337 MS |
313 | val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th); |
314 | if (val == TD_NOTHR) | |
315 | return -1; /* thread must have terminated */ | |
316 | else if (val != TD_OK) | |
934741a1 | 317 | error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val)); |
8fc2b417 | 318 | |
4915acad | 319 | val = p_td_thr_get_info (&th, &ti); |
3780c337 MS |
320 | if (val == TD_NOTHR) |
321 | return -1; /* thread must have terminated */ | |
322 | else if (val != TD_OK) | |
934741a1 | 323 | error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val)); |
8fc2b417 SG |
324 | |
325 | if (ti.ti_state != TD_THR_ACTIVE) | |
326 | { | |
327 | if (default_lwp != -1) | |
328 | return default_lwp; | |
934741a1 SG |
329 | error ("thread_to_lwp: thread state not active: %s", |
330 | td_state_string (ti.ti_state)); | |
8fc2b417 | 331 | } |
8fc2b417 | 332 | |
3780c337 | 333 | return BUILD_LWP (ti.ti_lid, PIDGET (thread_id)); |
8fc2b417 | 334 | } |
a50cedad SG |
335 | \f |
336 | /* | |
337 | ||
338 | LOCAL FUNCTION | |
339 | ||
340 | lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id. | |
341 | ||
342 | SYNOPSIS | |
343 | ||
344 | int lwp_to_thread (lwp_id) | |
8fc2b417 | 345 | |
a50cedad SG |
346 | DESCRIPTION |
347 | ||
348 | This function converts a lightweight process id to a Posix or Solaris | |
349 | thread id. If thread_id is non-existent, that's an error. | |
350 | ||
351 | NOTES | |
352 | ||
353 | This function probably shouldn't call error()... | |
354 | ||
355 | */ | |
8fc2b417 | 356 | |
8fc2b417 SG |
357 | static int |
358 | lwp_to_thread (lwp) | |
359 | int lwp; | |
360 | { | |
361 | td_thrinfo_t ti; | |
362 | td_thrhandle_t th; | |
363 | td_err_e val; | |
8fc2b417 | 364 | |
934741a1 | 365 | if (is_thread (lwp)) |
8fc2b417 SG |
366 | return lwp; /* It's already a thread id */ |
367 | ||
368 | /* It's an lwp. Convert it to a thread id. */ | |
369 | ||
3780c337 MS |
370 | if (!sol_thread_alive (lwp)) |
371 | return -1; /* defunct lwp */ | |
8fc2b417 | 372 | |
3780c337 MS |
373 | val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th); |
374 | if (val == TD_NOTHR) | |
375 | return -1; /* thread must have terminated */ | |
376 | else if (val != TD_OK) | |
cfd7cb29 | 377 | error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val)); |
8fc2b417 | 378 | |
3780c337 MS |
379 | val = p_td_thr_validate (&th); |
380 | if (val == TD_NOTHR) | |
381 | return lwp; /* libthread doesn't know about it, just return lwp */ | |
382 | else if (val != TD_OK) | |
383 | error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val)); | |
8fc2b417 | 384 | |
3780c337 MS |
385 | val = p_td_thr_get_info (&th, &ti); |
386 | if (val == TD_NOTHR) | |
387 | return -1; /* thread must have terminated */ | |
388 | else if (val != TD_OK) | |
934741a1 | 389 | error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val)); |
8fc2b417 | 390 | |
3780c337 | 391 | return BUILD_THREAD (ti.ti_tid, PIDGET (lwp)); |
8fc2b417 | 392 | } |
934741a1 | 393 | \f |
a50cedad SG |
394 | /* |
395 | ||
396 | LOCAL FUNCTION | |
397 | ||
398 | save_inferior_pid - Save inferior_pid on the cleanup list | |
399 | restore_inferior_pid - Restore inferior_pid from the cleanup list | |
400 | ||
401 | SYNOPSIS | |
402 | ||
403 | struct cleanup *save_inferior_pid () | |
404 | void restore_inferior_pid (int pid) | |
405 | ||
406 | DESCRIPTION | |
407 | ||
408 | These two functions act in unison to restore inferior_pid in | |
409 | case of an error. | |
410 | ||
411 | NOTES | |
412 | ||
413 | inferior_pid is a global variable that needs to be changed by many of | |
414 | these routines before calling functions in procfs.c. In order to | |
415 | guarantee that inferior_pid gets restored (in case of errors), you | |
416 | need to call save_inferior_pid before changing it. At the end of the | |
417 | function, you should invoke do_cleanups to restore it. | |
418 | ||
419 | */ | |
420 | ||
421 | ||
934741a1 SG |
422 | static struct cleanup * |
423 | save_inferior_pid () | |
424 | { | |
425 | return make_cleanup (restore_inferior_pid, inferior_pid); | |
426 | } | |
8fc2b417 | 427 | |
934741a1 SG |
428 | static void |
429 | restore_inferior_pid (pid) | |
430 | int pid; | |
431 | { | |
432 | inferior_pid = pid; | |
433 | } | |
434 | \f | |
a50cedad SG |
435 | |
436 | /* Most target vector functions from here on actually just pass through to | |
437 | procfs.c, as they don't need to do anything specific for threads. */ | |
438 | ||
439 | ||
8fc2b417 SG |
440 | /* ARGSUSED */ |
441 | static void | |
442 | sol_thread_open (arg, from_tty) | |
443 | char *arg; | |
444 | int from_tty; | |
445 | { | |
446 | procfs_ops.to_open (arg, from_tty); | |
447 | } | |
448 | ||
449 | /* Attach to process PID, then initialize for debugging it | |
450 | and wait for the trace-trap that results from attaching. */ | |
451 | ||
452 | static void | |
453 | sol_thread_attach (args, from_tty) | |
454 | char *args; | |
455 | int from_tty; | |
456 | { | |
457 | procfs_ops.to_attach (args, from_tty); | |
3780c337 MS |
458 | /* Must get symbols from solibs before libthread_db can run! */ |
459 | SOLIB_ADD ((char *)0, from_tty, (struct target_ops *)0); | |
460 | if (sol_thread_active) | |
461 | { | |
462 | printf_filtered ("sol-thread active.\n"); | |
463 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ | |
464 | push_target (&sol_thread_ops); | |
465 | inferior_pid = lwp_to_thread (inferior_pid); | |
466 | if (inferior_pid == -1) | |
467 | inferior_pid = main_ph.pid; | |
468 | else | |
469 | add_thread (inferior_pid); | |
470 | } | |
8fc2b417 SG |
471 | /* XXX - might want to iterate over all the threads and register them. */ |
472 | } | |
473 | ||
474 | /* Take a program previously attached to and detaches it. | |
475 | The program resumes execution and will no longer stop | |
476 | on signals, etc. We'd better not have left any breakpoints | |
477 | in the program or it'll die when it hits one. For this | |
478 | to work, it may be necessary for the process to have been | |
479 | previously attached. It *might* work if the program was | |
480 | started via the normal ptrace (PTRACE_TRACEME). */ | |
481 | ||
482 | static void | |
483 | sol_thread_detach (args, from_tty) | |
484 | char *args; | |
485 | int from_tty; | |
486 | { | |
3780c337 | 487 | unpush_target (&sol_thread_ops); |
8fc2b417 SG |
488 | procfs_ops.to_detach (args, from_tty); |
489 | } | |
490 | ||
491 | /* Resume execution of process PID. If STEP is nozero, then | |
492 | just single step it. If SIGNAL is nonzero, restart it with that | |
a50cedad SG |
493 | signal activated. We may have to convert pid from a thread-id to an LWP id |
494 | for procfs. */ | |
8fc2b417 SG |
495 | |
496 | static void | |
497 | sol_thread_resume (pid, step, signo) | |
498 | int pid; | |
499 | int step; | |
500 | enum target_signal signo; | |
501 | { | |
934741a1 | 502 | struct cleanup *old_chain; |
8fc2b417 | 503 | |
934741a1 | 504 | old_chain = save_inferior_pid (); |
8fc2b417 SG |
505 | |
506 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
3780c337 MS |
507 | if (inferior_pid == -1) |
508 | inferior_pid = procfs_first_available (); | |
8fc2b417 SG |
509 | |
510 | if (pid != -1) | |
a50cedad | 511 | { |
3780c337 MS |
512 | int save_pid = pid; |
513 | ||
a50cedad SG |
514 | pid = thread_to_lwp (pid, -2); |
515 | if (pid == -2) /* Inactive thread */ | |
516 | error ("This version of Solaris can't start inactive threads."); | |
3780c337 MS |
517 | if (info_verbose && pid == -1) |
518 | warning ("Specified thread %d seems to have terminated", | |
519 | GET_THREAD (save_pid)); | |
a50cedad | 520 | } |
8fc2b417 SG |
521 | |
522 | procfs_ops.to_resume (pid, step, signo); | |
523 | ||
934741a1 | 524 | do_cleanups (old_chain); |
8fc2b417 SG |
525 | } |
526 | ||
a50cedad SG |
527 | /* Wait for any threads to stop. We may have to convert PID from a thread id |
528 | to a LWP id, and vice versa on the way out. */ | |
8fc2b417 SG |
529 | |
530 | static int | |
531 | sol_thread_wait (pid, ourstatus) | |
532 | int pid; | |
533 | struct target_waitstatus *ourstatus; | |
534 | { | |
8fc2b417 SG |
535 | int rtnval; |
536 | int save_pid; | |
934741a1 | 537 | struct cleanup *old_chain; |
8fc2b417 | 538 | |
8fc2b417 | 539 | save_pid = inferior_pid; |
934741a1 | 540 | old_chain = save_inferior_pid (); |
8fc2b417 SG |
541 | |
542 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
3780c337 MS |
543 | if (inferior_pid == -1) |
544 | inferior_pid = procfs_first_available (); | |
8fc2b417 SG |
545 | |
546 | if (pid != -1) | |
3780c337 MS |
547 | { |
548 | int save_pid = pid; | |
549 | ||
550 | pid = thread_to_lwp (pid, -2); | |
551 | if (pid == -2) /* Inactive thread */ | |
552 | error ("This version of Solaris can't start inactive threads."); | |
553 | if (info_verbose && pid == -1) | |
554 | warning ("Specified thread %d seems to have terminated", | |
555 | GET_THREAD (save_pid)); | |
556 | } | |
8fc2b417 SG |
557 | |
558 | rtnval = procfs_ops.to_wait (pid, ourstatus); | |
559 | ||
3780c337 | 560 | if (ourstatus->kind != TARGET_WAITKIND_EXITED) |
8fc2b417 | 561 | { |
3780c337 MS |
562 | /* Map the LWP of interest back to the appropriate thread ID */ |
563 | rtnval = lwp_to_thread (rtnval); | |
564 | if (rtnval == -1) | |
565 | rtnval = save_pid; | |
566 | ||
567 | /* See if we have a new thread */ | |
568 | if (is_thread (rtnval) | |
569 | && rtnval != save_pid | |
570 | && !in_thread_list (rtnval)) | |
571 | { | |
572 | printf_filtered ("[New %s]\n", target_pid_to_str (rtnval)); | |
573 | add_thread (rtnval); | |
574 | } | |
8fc2b417 SG |
575 | } |
576 | ||
8fc2b417 SG |
577 | /* During process initialization, we may get here without the thread package |
578 | being initialized, since that can only happen after we've found the shared | |
579 | libs. */ | |
580 | ||
934741a1 SG |
581 | do_cleanups (old_chain); |
582 | ||
8fc2b417 SG |
583 | return rtnval; |
584 | } | |
585 | ||
586 | static void | |
587 | sol_thread_fetch_registers (regno) | |
588 | int regno; | |
589 | { | |
590 | thread_t thread; | |
591 | td_thrhandle_t thandle; | |
592 | td_err_e val; | |
9b33e492 | 593 | prgregset_t gregset; |
8fc2b417 | 594 | prfpregset_t fpregset; |
934741a1 | 595 | #if 0 |
8fc2b417 SG |
596 | int xregsize; |
597 | caddr_t xregset; | |
934741a1 | 598 | #endif |
8fc2b417 | 599 | |
0f5b751a MS |
600 | if (!is_thread (inferior_pid)) |
601 | { /* LWP: pass the request on to procfs.c */ | |
0274a484 DT |
602 | if (target_has_execution) |
603 | procfs_ops.to_fetch_registers (regno); | |
604 | else | |
605 | orig_core_ops.to_fetch_registers (regno); | |
0f5b751a MS |
606 | return; |
607 | } | |
608 | ||
609 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
8fc2b417 | 610 | |
934741a1 | 611 | thread = GET_THREAD (inferior_pid); |
8fc2b417 SG |
612 | |
613 | if (thread == 0) | |
614 | error ("sol_thread_fetch_registers: thread == 0"); | |
615 | ||
4915acad | 616 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); |
8fc2b417 | 617 | if (val != TD_OK) |
934741a1 SG |
618 | error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s", |
619 | td_err_string (val)); | |
8fc2b417 SG |
620 | |
621 | /* Get the integer regs */ | |
622 | ||
4915acad | 623 | val = p_td_thr_getgregs (&thandle, gregset); |
9b33e492 SG |
624 | if (val != TD_OK |
625 | && val != TD_PARTIALREG) | |
934741a1 SG |
626 | error ("sol_thread_fetch_registers: td_thr_getgregs %s", |
627 | td_err_string (val)); | |
8fc2b417 | 628 | |
9b33e492 SG |
629 | /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp |
630 | are saved (by a thread context switch). */ | |
631 | ||
8fc2b417 SG |
632 | /* And, now the fp regs */ |
633 | ||
4915acad | 634 | val = p_td_thr_getfpregs (&thandle, &fpregset); |
9b33e492 SG |
635 | if (val != TD_OK |
636 | && val != TD_NOFPREGS) | |
934741a1 SG |
637 | error ("sol_thread_fetch_registers: td_thr_getfpregs %s", |
638 | td_err_string (val)); | |
8fc2b417 | 639 | |
9b33e492 SG |
640 | /* Note that we must call supply_{g fp}regset *after* calling the td routines |
641 | because the td routines call ps_lget* which affect the values stored in the | |
642 | registers array. */ | |
643 | ||
644 | supply_gregset (gregset); | |
2d24a021 | 645 | supply_fpregset (&fpregset); |
9b33e492 | 646 | |
8fc2b417 SG |
647 | #if 0 |
648 | /* thread_db doesn't seem to handle this right */ | |
649 | val = td_thr_getxregsize (&thandle, &xregsize); | |
650 | if (val != TD_OK && val != TD_NOXREGS) | |
934741a1 SG |
651 | error ("sol_thread_fetch_registers: td_thr_getxregsize %s", |
652 | td_err_string (val)); | |
8fc2b417 SG |
653 | |
654 | if (val == TD_OK) | |
655 | { | |
656 | xregset = alloca (xregsize); | |
657 | val = td_thr_getxregs (&thandle, xregset); | |
658 | if (val != TD_OK) | |
934741a1 SG |
659 | error ("sol_thread_fetch_registers: td_thr_getxregs %s", |
660 | td_err_string (val)); | |
8fc2b417 SG |
661 | } |
662 | #endif | |
663 | } | |
664 | ||
665 | static void | |
666 | sol_thread_store_registers (regno) | |
667 | int regno; | |
668 | { | |
669 | thread_t thread; | |
670 | td_thrhandle_t thandle; | |
671 | td_err_e val; | |
672 | prgregset_t regset; | |
673 | prfpregset_t fpregset; | |
934741a1 | 674 | #if 0 |
8fc2b417 SG |
675 | int xregsize; |
676 | caddr_t xregset; | |
934741a1 | 677 | #endif |
8fc2b417 | 678 | |
0f5b751a MS |
679 | if (!is_thread (inferior_pid)) |
680 | { /* LWP: pass the request on to procfs.c */ | |
681 | procfs_ops.to_store_registers (regno); | |
682 | return; | |
683 | } | |
684 | ||
685 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
8fc2b417 | 686 | |
934741a1 | 687 | thread = GET_THREAD (inferior_pid); |
8fc2b417 | 688 | |
4915acad | 689 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); |
8fc2b417 | 690 | if (val != TD_OK) |
934741a1 SG |
691 | error ("sol_thread_store_registers: td_ta_map_id2thr %s", |
692 | td_err_string (val)); | |
8fc2b417 SG |
693 | |
694 | if (regno != -1) | |
695 | { /* Not writing all the regs */ | |
7cdd6cac FCE |
696 | /* save new register value */ |
697 | char old_value[REGISTER_SIZE]; | |
698 | memcpy(old_value, & registers[REGISTER_BYTE(regno)], REGISTER_SIZE); | |
699 | ||
4915acad | 700 | val = p_td_thr_getgregs (&thandle, regset); |
8fc2b417 | 701 | if (val != TD_OK) |
934741a1 SG |
702 | error ("sol_thread_store_registers: td_thr_getgregs %s", |
703 | td_err_string (val)); | |
4915acad | 704 | val = p_td_thr_getfpregs (&thandle, &fpregset); |
8fc2b417 | 705 | if (val != TD_OK) |
934741a1 SG |
706 | error ("sol_thread_store_registers: td_thr_getfpregs %s", |
707 | td_err_string (val)); | |
8fc2b417 | 708 | |
f0fce3b8 | 709 | /* restore new register value */ |
7cdd6cac FCE |
710 | memcpy(& registers[REGISTER_BYTE(regno)], old_value, REGISTER_SIZE); |
711 | ||
8fc2b417 SG |
712 | #if 0 |
713 | /* thread_db doesn't seem to handle this right */ | |
714 | val = td_thr_getxregsize (&thandle, &xregsize); | |
715 | if (val != TD_OK && val != TD_NOXREGS) | |
934741a1 SG |
716 | error ("sol_thread_store_registers: td_thr_getxregsize %s", |
717 | td_err_string (val)); | |
8fc2b417 SG |
718 | |
719 | if (val == TD_OK) | |
720 | { | |
721 | xregset = alloca (xregsize); | |
722 | val = td_thr_getxregs (&thandle, xregset); | |
723 | if (val != TD_OK) | |
934741a1 SG |
724 | error ("sol_thread_store_registers: td_thr_getxregs %s", |
725 | td_err_string (val)); | |
8fc2b417 SG |
726 | } |
727 | #endif | |
728 | } | |
729 | ||
730 | fill_gregset (regset, regno); | |
2d24a021 | 731 | fill_fpregset (&fpregset, regno); |
8fc2b417 | 732 | |
4915acad | 733 | val = p_td_thr_setgregs (&thandle, regset); |
8fc2b417 | 734 | if (val != TD_OK) |
934741a1 SG |
735 | error ("sol_thread_store_registers: td_thr_setgregs %s", |
736 | td_err_string (val)); | |
4915acad | 737 | val = p_td_thr_setfpregs (&thandle, &fpregset); |
8fc2b417 | 738 | if (val != TD_OK) |
934741a1 SG |
739 | error ("sol_thread_store_registers: td_thr_setfpregs %s", |
740 | td_err_string (val)); | |
8fc2b417 SG |
741 | |
742 | #if 0 | |
743 | /* thread_db doesn't seem to handle this right */ | |
744 | val = td_thr_getxregsize (&thandle, &xregsize); | |
745 | if (val != TD_OK && val != TD_NOXREGS) | |
934741a1 SG |
746 | error ("sol_thread_store_registers: td_thr_getxregsize %s", |
747 | td_err_string (val)); | |
8fc2b417 SG |
748 | |
749 | /* Should probably do something about writing the xregs here, but what are | |
750 | they? */ | |
751 | #endif | |
752 | } | |
753 | ||
754 | /* Get ready to modify the registers array. On machines which store | |
755 | individual registers, this doesn't need to do anything. On machines | |
756 | which store all the registers in one fell swoop, this makes sure | |
757 | that registers contains all the registers from the program being | |
758 | debugged. */ | |
759 | ||
760 | static void | |
761 | sol_thread_prepare_to_store () | |
762 | { | |
763 | procfs_ops.to_prepare_to_store (); | |
764 | } | |
765 | ||
766 | static int | |
767 | sol_thread_xfer_memory (memaddr, myaddr, len, dowrite, target) | |
768 | CORE_ADDR memaddr; | |
769 | char *myaddr; | |
770 | int len; | |
771 | int dowrite; | |
772 | struct target_ops *target; /* ignored */ | |
773 | { | |
774 | int retval; | |
934741a1 | 775 | struct cleanup *old_chain; |
8fc2b417 | 776 | |
934741a1 | 777 | old_chain = save_inferior_pid (); |
8fc2b417 | 778 | |
0f5b751a MS |
779 | if (is_thread (inferior_pid) || /* A thread */ |
780 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ | |
781 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
782 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
8fc2b417 | 783 | |
0274a484 DT |
784 | if (target_has_execution) |
785 | retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target); | |
786 | else | |
787 | retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len, | |
788 | dowrite, target); | |
8fc2b417 | 789 | |
934741a1 | 790 | do_cleanups (old_chain); |
8fc2b417 SG |
791 | |
792 | return retval; | |
793 | } | |
794 | ||
795 | /* Print status information about what we're accessing. */ | |
796 | ||
797 | static void | |
798 | sol_thread_files_info (ignore) | |
799 | struct target_ops *ignore; | |
800 | { | |
801 | procfs_ops.to_files_info (ignore); | |
802 | } | |
803 | ||
804 | static void | |
805 | sol_thread_kill_inferior () | |
806 | { | |
807 | procfs_ops.to_kill (); | |
808 | } | |
809 | ||
810 | static void | |
811 | sol_thread_notice_signals (pid) | |
812 | int pid; | |
813 | { | |
d2fce7f7 | 814 | procfs_ops.to_notice_signals (PIDGET (pid)); |
8fc2b417 SG |
815 | } |
816 | ||
8fc2b417 SG |
817 | /* Fork an inferior process, and start debugging it with /proc. */ |
818 | ||
819 | static void | |
820 | sol_thread_create_inferior (exec_file, allargs, env) | |
821 | char *exec_file; | |
822 | char *allargs; | |
823 | char **env; | |
824 | { | |
825 | procfs_ops.to_create_inferior (exec_file, allargs, env); | |
826 | ||
3780c337 | 827 | if (sol_thread_active && inferior_pid != 0) |
8fc2b417 | 828 | { |
8fc2b417 SG |
829 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
830 | ||
831 | push_target (&sol_thread_ops); | |
832 | ||
833 | inferior_pid = lwp_to_thread (inferior_pid); | |
3780c337 MS |
834 | if (inferior_pid == -1) |
835 | inferior_pid = main_ph.pid; | |
8fc2b417 SG |
836 | |
837 | add_thread (inferior_pid); | |
838 | } | |
839 | } | |
840 | ||
841 | /* This routine is called whenever a new symbol table is read in, or when all | |
a50cedad SG |
842 | symbol tables are removed. libthread_db can only be initialized when it |
843 | finds the right variables in libthread.so. Since it's a shared library, | |
844 | those variables don't show up until the library gets mapped and the symbol | |
845 | table is read in. */ | |
8fc2b417 SG |
846 | |
847 | void | |
848 | sol_thread_new_objfile (objfile) | |
849 | struct objfile *objfile; | |
850 | { | |
851 | td_err_e val; | |
852 | ||
853 | if (!objfile) | |
854 | { | |
855 | sol_thread_active = 0; | |
856 | ||
857 | return; | |
858 | } | |
859 | ||
3780c337 MS |
860 | /* don't do anything if init failed to resolve the libthread_db library */ |
861 | if (!procfs_suppress_run) | |
862 | return; | |
863 | ||
8fc2b417 SG |
864 | /* Now, initialize the thread debugging library. This needs to be done after |
865 | the shared libraries are located because it needs information from the | |
866 | user's thread library. */ | |
867 | ||
4915acad | 868 | val = p_td_init (); |
8fc2b417 | 869 | if (val != TD_OK) |
934741a1 | 870 | error ("target_new_objfile: td_init: %s", td_err_string (val)); |
8fc2b417 | 871 | |
4915acad | 872 | val = p_td_ta_new (&main_ph, &main_ta); |
8fc2b417 SG |
873 | if (val == TD_NOLIBTHREAD) |
874 | return; | |
875 | else if (val != TD_OK) | |
934741a1 | 876 | error ("target_new_objfile: td_ta_new: %s", td_err_string (val)); |
8fc2b417 SG |
877 | |
878 | sol_thread_active = 1; | |
879 | } | |
880 | ||
881 | /* Clean up after the inferior dies. */ | |
882 | ||
883 | static void | |
884 | sol_thread_mourn_inferior () | |
885 | { | |
3780c337 | 886 | unpush_target (&sol_thread_ops); |
8fc2b417 SG |
887 | procfs_ops.to_mourn_inferior (); |
888 | } | |
889 | ||
890 | /* Mark our target-struct as eligible for stray "run" and "attach" commands. */ | |
a50cedad | 891 | |
8fc2b417 SG |
892 | static int |
893 | sol_thread_can_run () | |
894 | { | |
895 | return procfs_suppress_run; | |
896 | } | |
897 | ||
3780c337 MS |
898 | /* |
899 | ||
900 | LOCAL FUNCTION | |
901 | ||
902 | sol_thread_alive - test thread for "aliveness" | |
903 | ||
904 | SYNOPSIS | |
905 | ||
906 | static bool sol_thread_alive (int pid); | |
907 | ||
908 | DESCRIPTION | |
909 | ||
910 | returns true if thread still active in inferior. | |
911 | ||
912 | */ | |
913 | ||
a50cedad | 914 | static int |
8fc2b417 SG |
915 | sol_thread_alive (pid) |
916 | int pid; | |
917 | { | |
3780c337 MS |
918 | if (is_thread (pid)) /* non-kernel thread */ |
919 | { | |
920 | td_err_e val; | |
921 | td_thrhandle_t th; | |
922 | ||
923 | pid = GET_THREAD (pid); | |
924 | if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK) | |
925 | return 0; /* thread not found */ | |
926 | if ((val = p_td_thr_validate (&th)) != TD_OK) | |
927 | return 0; /* thread not valid */ | |
928 | return 1; /* known thread: return true */ | |
929 | } | |
930 | else /* kernel thread (LWP): let procfs test it */ | |
0274a484 DT |
931 | { |
932 | if (target_has_execution) | |
933 | return procfs_ops.to_thread_alive (pid); | |
934 | else | |
935 | return orig_core_ops.to_thread_alive (pid); | |
936 | } | |
8fc2b417 SG |
937 | } |
938 | ||
a50cedad | 939 | static void |
8fc2b417 SG |
940 | sol_thread_stop () |
941 | { | |
942 | procfs_ops.to_stop (); | |
943 | } | |
a50cedad SG |
944 | \f |
945 | /* These routines implement the lower half of the thread_db interface. Ie: the | |
946 | ps_* routines. */ | |
8fc2b417 | 947 | |
37f58dce FL |
948 | /* Various versions of <proc_service.h> have slightly |
949 | different function prototypes. In particular, we have | |
950 | ||
951 | NEWER OLDER | |
952 | struct ps_prochandle * const struct ps_prochandle * | |
953 | void* char* | |
954 | const void* char* | |
955 | int size_t | |
956 | ||
957 | Which one you have depends on solaris version and what | |
958 | patches you've applied. On the theory that there are | |
959 | only two major variants, we have configure check the | |
960 | prototype of ps_pdwrite (), and use that info to make | |
961 | appropriate typedefs here. */ | |
962 | ||
963 | #ifdef PROC_SERVICE_IS_OLD | |
964 | typedef const struct ps_prochandle * gdb_ps_prochandle_t; | |
965 | typedef char * gdb_ps_read_buf_t; | |
966 | typedef char * gdb_ps_write_buf_t; | |
bbee94c7 | 967 | typedef int gdb_ps_size_t; |
37f58dce FL |
968 | #else |
969 | typedef struct ps_prochandle * gdb_ps_prochandle_t; | |
970 | typedef void * gdb_ps_read_buf_t; | |
971 | typedef const void * gdb_ps_write_buf_t; | |
972 | typedef size_t gdb_ps_size_t; | |
bbee94c7 FL |
973 | #endif |
974 | ||
37f58dce | 975 | |
a50cedad SG |
976 | /* The next four routines are called by thread_db to tell us to stop and stop |
977 | a particular process or lwp. Since GDB ensures that these are all stopped | |
978 | by the time we call anything in thread_db, these routines need to do | |
979 | nothing. */ | |
8fc2b417 | 980 | |
8fc2b417 | 981 | ps_err_e |
bbee94c7 | 982 | ps_pstop (gdb_ps_prochandle_t ph) |
8fc2b417 | 983 | { |
8fc2b417 SG |
984 | return PS_OK; |
985 | } | |
986 | ||
987 | ps_err_e | |
bbee94c7 | 988 | ps_pcontinue (gdb_ps_prochandle_t ph) |
8fc2b417 | 989 | { |
8fc2b417 SG |
990 | return PS_OK; |
991 | } | |
992 | ||
993 | ps_err_e | |
bbee94c7 | 994 | ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid) |
8fc2b417 | 995 | { |
8fc2b417 SG |
996 | return PS_OK; |
997 | } | |
998 | ||
999 | ps_err_e | |
bbee94c7 | 1000 | ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid) |
8fc2b417 | 1001 | { |
8fc2b417 SG |
1002 | return PS_OK; |
1003 | } | |
1004 | ||
1005 | ps_err_e | |
bbee94c7 | 1006 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name, |
8fc2b417 SG |
1007 | const char *ld_symbol_name, paddr_t *ld_symbol_addr) |
1008 | { | |
1009 | struct minimal_symbol *ms; | |
1010 | ||
1011 | ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL); | |
1012 | ||
1013 | if (!ms) | |
1014 | return PS_NOSYM; | |
1015 | ||
1016 | *ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms); | |
1017 | ||
1018 | return PS_OK; | |
1019 | } | |
1020 | ||
a50cedad SG |
1021 | /* Common routine for reading and writing memory. */ |
1022 | ||
8fc2b417 SG |
1023 | static ps_err_e |
1024 | rw_common (int dowrite, const struct ps_prochandle *ph, paddr_t addr, | |
1025 | char *buf, int size) | |
1026 | { | |
934741a1 | 1027 | struct cleanup *old_chain; |
8fc2b417 | 1028 | |
934741a1 | 1029 | old_chain = save_inferior_pid (); |
8fc2b417 | 1030 | |
0f5b751a MS |
1031 | if (is_thread (inferior_pid) || /* A thread */ |
1032 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ | |
1033 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
1034 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
8fc2b417 SG |
1035 | |
1036 | while (size > 0) | |
1037 | { | |
1038 | int cc; | |
1039 | ||
0274a484 DT |
1040 | if (target_has_execution) |
1041 | cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops); | |
1042 | else | |
1043 | cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops); | |
8fc2b417 SG |
1044 | |
1045 | if (cc < 0) | |
1046 | { | |
1047 | if (dowrite == 0) | |
3780c337 | 1048 | print_sys_errmsg ("rw_common (): read", errno); |
8fc2b417 | 1049 | else |
3780c337 | 1050 | print_sys_errmsg ("rw_common (): write", errno); |
8fc2b417 | 1051 | |
934741a1 | 1052 | do_cleanups (old_chain); |
8fc2b417 SG |
1053 | |
1054 | return PS_ERR; | |
1055 | } | |
1056 | size -= cc; | |
1057 | buf += cc; | |
1058 | } | |
1059 | ||
934741a1 | 1060 | do_cleanups (old_chain); |
8fc2b417 SG |
1061 | |
1062 | return PS_OK; | |
1063 | } | |
1064 | ||
1065 | ps_err_e | |
bbee94c7 FL |
1066 | ps_pdread (gdb_ps_prochandle_t ph, paddr_t addr, |
1067 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) | |
8fc2b417 SG |
1068 | { |
1069 | return rw_common (0, ph, addr, buf, size); | |
1070 | } | |
1071 | ||
1072 | ps_err_e | |
bbee94c7 FL |
1073 | ps_pdwrite (gdb_ps_prochandle_t ph, paddr_t addr, |
1074 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) | |
8fc2b417 | 1075 | { |
bbee94c7 | 1076 | return rw_common (1, ph, addr, (char*) buf, size); |
8fc2b417 SG |
1077 | } |
1078 | ||
1079 | ps_err_e | |
bbee94c7 FL |
1080 | ps_ptread (gdb_ps_prochandle_t ph, paddr_t addr, |
1081 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) | |
8fc2b417 SG |
1082 | { |
1083 | return rw_common (0, ph, addr, buf, size); | |
1084 | } | |
1085 | ||
1086 | ps_err_e | |
bbee94c7 FL |
1087 | ps_ptwrite (gdb_ps_prochandle_t ph, paddr_t addr, |
1088 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) | |
8fc2b417 | 1089 | { |
bbee94c7 | 1090 | return rw_common (1, ph, addr, (char*) buf, size); |
8fc2b417 SG |
1091 | } |
1092 | ||
a50cedad SG |
1093 | /* Get integer regs */ |
1094 | ||
8fc2b417 | 1095 | ps_err_e |
bbee94c7 | 1096 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, |
8fc2b417 SG |
1097 | prgregset_t gregset) |
1098 | { | |
934741a1 | 1099 | struct cleanup *old_chain; |
8fc2b417 | 1100 | |
934741a1 | 1101 | old_chain = save_inferior_pid (); |
8fc2b417 | 1102 | |
934741a1 | 1103 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); |
8fc2b417 | 1104 | |
0274a484 DT |
1105 | if (target_has_execution) |
1106 | procfs_ops.to_fetch_registers (-1); | |
1107 | else | |
1108 | orig_core_ops.to_fetch_registers (-1); | |
8fc2b417 SG |
1109 | fill_gregset (gregset, -1); |
1110 | ||
934741a1 | 1111 | do_cleanups (old_chain); |
8fc2b417 SG |
1112 | |
1113 | return PS_OK; | |
1114 | } | |
1115 | ||
a50cedad SG |
1116 | /* Set integer regs */ |
1117 | ||
8fc2b417 | 1118 | ps_err_e |
bbee94c7 | 1119 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, |
8fc2b417 SG |
1120 | const prgregset_t gregset) |
1121 | { | |
934741a1 | 1122 | struct cleanup *old_chain; |
8fc2b417 | 1123 | |
934741a1 | 1124 | old_chain = save_inferior_pid (); |
8fc2b417 | 1125 | |
934741a1 | 1126 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); |
8fc2b417 SG |
1127 | |
1128 | supply_gregset (gregset); | |
0274a484 DT |
1129 | if (target_has_execution) |
1130 | procfs_ops.to_store_registers (-1); | |
1131 | else | |
1132 | orig_core_ops.to_store_registers (-1); | |
8fc2b417 | 1133 | |
934741a1 | 1134 | do_cleanups (old_chain); |
8fc2b417 SG |
1135 | |
1136 | return PS_OK; | |
1137 | } | |
1138 | ||
1139 | void | |
1140 | ps_plog (const char *fmt, ...) | |
1141 | { | |
1142 | va_list args; | |
1143 | ||
1144 | va_start (args, fmt); | |
1145 | ||
1146 | vfprintf_filtered (gdb_stderr, fmt, args); | |
1147 | } | |
1148 | ||
a50cedad SG |
1149 | /* Get size of extra register set. Currently a noop. */ |
1150 | ||
8fc2b417 | 1151 | ps_err_e |
bbee94c7 | 1152 | ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize) |
8fc2b417 | 1153 | { |
934741a1 | 1154 | #if 0 |
8fc2b417 SG |
1155 | int lwp_fd; |
1156 | int regsize; | |
1157 | ps_err_e val; | |
1158 | ||
8fc2b417 SG |
1159 | val = get_lwp_fd (ph, lwpid, &lwp_fd); |
1160 | if (val != PS_OK) | |
1161 | return val; | |
1162 | ||
1163 | if (ioctl (lwp_fd, PIOCGXREGSIZE, ®size)) | |
1164 | { | |
1165 | if (errno == EINVAL) | |
1166 | return PS_NOFREGS; /* XXX Wrong code, but this is the closest | |
1167 | thing in proc_service.h */ | |
1168 | ||
1169 | print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno); | |
1170 | return PS_ERR; | |
1171 | } | |
1172 | #endif | |
1173 | ||
1174 | return PS_OK; | |
1175 | } | |
1176 | ||
a50cedad SG |
1177 | /* Get extra register set. Currently a noop. */ |
1178 | ||
8fc2b417 | 1179 | ps_err_e |
bbee94c7 | 1180 | ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) |
8fc2b417 | 1181 | { |
934741a1 | 1182 | #if 0 |
8fc2b417 SG |
1183 | int lwp_fd; |
1184 | ps_err_e val; | |
1185 | ||
8fc2b417 SG |
1186 | val = get_lwp_fd (ph, lwpid, &lwp_fd); |
1187 | if (val != PS_OK) | |
1188 | return val; | |
1189 | ||
1190 | if (ioctl (lwp_fd, PIOCGXREG, xregset)) | |
1191 | { | |
1192 | print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno); | |
1193 | return PS_ERR; | |
1194 | } | |
1195 | #endif | |
1196 | ||
1197 | return PS_OK; | |
1198 | } | |
1199 | ||
a50cedad SG |
1200 | /* Set extra register set. Currently a noop. */ |
1201 | ||
8fc2b417 | 1202 | ps_err_e |
bbee94c7 | 1203 | ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) |
8fc2b417 | 1204 | { |
934741a1 | 1205 | #if 0 |
8fc2b417 SG |
1206 | int lwp_fd; |
1207 | ps_err_e val; | |
1208 | ||
8fc2b417 SG |
1209 | val = get_lwp_fd (ph, lwpid, &lwp_fd); |
1210 | if (val != PS_OK) | |
1211 | return val; | |
1212 | ||
1213 | if (ioctl (lwp_fd, PIOCSXREG, xregset)) | |
1214 | { | |
1215 | print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno); | |
1216 | return PS_ERR; | |
1217 | } | |
1218 | #endif | |
1219 | ||
1220 | return PS_OK; | |
1221 | } | |
1222 | ||
a50cedad SG |
1223 | /* Get floating-point regs. */ |
1224 | ||
8fc2b417 | 1225 | ps_err_e |
bbee94c7 | 1226 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, |
8fc2b417 SG |
1227 | prfpregset_t *fpregset) |
1228 | { | |
934741a1 | 1229 | struct cleanup *old_chain; |
8fc2b417 | 1230 | |
934741a1 | 1231 | old_chain = save_inferior_pid (); |
8fc2b417 | 1232 | |
934741a1 | 1233 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); |
8fc2b417 | 1234 | |
0274a484 DT |
1235 | if (target_has_execution) |
1236 | procfs_ops.to_fetch_registers (-1); | |
1237 | else | |
1238 | orig_core_ops.to_fetch_registers (-1); | |
2d24a021 | 1239 | fill_fpregset (fpregset, -1); |
8fc2b417 | 1240 | |
934741a1 | 1241 | do_cleanups (old_chain); |
8fc2b417 SG |
1242 | |
1243 | return PS_OK; | |
1244 | } | |
1245 | ||
a50cedad SG |
1246 | /* Set floating-point regs. */ |
1247 | ||
8fc2b417 | 1248 | ps_err_e |
bbee94c7 | 1249 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, |
8fc2b417 SG |
1250 | const prfpregset_t *fpregset) |
1251 | { | |
934741a1 | 1252 | struct cleanup *old_chain; |
8fc2b417 | 1253 | |
934741a1 | 1254 | old_chain = save_inferior_pid (); |
8fc2b417 | 1255 | |
934741a1 | 1256 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); |
8fc2b417 | 1257 | |
2d24a021 | 1258 | supply_fpregset (fpregset); |
0274a484 DT |
1259 | if (target_has_execution) |
1260 | procfs_ops.to_store_registers (-1); | |
1261 | else | |
1262 | orig_core_ops.to_store_registers (-1); | |
8fc2b417 | 1263 | |
934741a1 | 1264 | do_cleanups (old_chain); |
8fc2b417 SG |
1265 | |
1266 | return PS_OK; | |
1267 | } | |
f0fce3b8 JM |
1268 | |
1269 | #ifdef TM_I386SOL2_H | |
1270 | ||
1271 | /* Get local descriptor table. */ | |
1272 | ||
1273 | #include <sys/procfs.h> | |
1274 | #include <sys/reg.h> | |
1275 | #include <sys/sysi86.h> | |
1276 | ||
1277 | static int nldt_allocated = 0; | |
1278 | static struct ssd *ldt_bufp = NULL; | |
1279 | ||
1280 | ps_err_e | |
bbee94c7 FL |
1281 | ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid, |
1282 | struct ssd *pldt) | |
f0fce3b8 JM |
1283 | { |
1284 | gregset_t gregset; | |
1285 | int lwp_fd; | |
1286 | ps_err_e val; | |
1287 | int nldt; | |
1288 | int i; | |
1289 | ||
1290 | /* Get procfs file descriptor for the LWP. */ | |
1291 | lwp_fd = procfs_get_pid_fd (BUILD_LWP (lwpid, PIDGET (inferior_pid))); | |
1292 | if (lwp_fd < 0) | |
1293 | return PS_BADLID; | |
1294 | ||
1295 | /* Fetch registers und LDT descriptors. */ | |
1296 | if (ioctl (lwp_fd, PIOCGREG, &gregset) == -1) | |
1297 | return PS_ERR; | |
1298 | ||
1299 | if (ioctl (lwp_fd, PIOCNLDT, &nldt) == -1) | |
1300 | return PS_ERR; | |
1301 | ||
1302 | if (nldt_allocated < nldt) | |
1303 | { | |
1304 | ldt_bufp | |
1305 | = (struct ssd *) xrealloc (ldt_bufp, (nldt + 1) * sizeof (struct ssd)); | |
1306 | nldt_allocated = nldt; | |
1307 | } | |
1308 | ||
1309 | if (ioctl (lwp_fd, PIOCLDT, ldt_bufp) == -1) | |
1310 | return PS_ERR; | |
1311 | ||
1312 | /* Search LDT for the LWP via register GS. */ | |
1313 | for (i = 0; i < nldt; i++) | |
1314 | { | |
cfd7cb29 | 1315 | if (ldt_bufp[i].sel == (gregset[GS] & 0xffff)) |
f0fce3b8 JM |
1316 | { |
1317 | *pldt = ldt_bufp[i]; | |
1318 | return PS_OK; | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | /* LDT not found. */ | |
1323 | return PS_ERR; | |
1324 | } | |
1325 | #endif /* TM_I386SOL2_H */ | |
8fc2b417 | 1326 | \f |
a50cedad SG |
1327 | /* Convert a pid to printable form. */ |
1328 | ||
8fc2b417 SG |
1329 | char * |
1330 | solaris_pid_to_str (pid) | |
1331 | int pid; | |
1332 | { | |
1333 | static char buf[100]; | |
1334 | ||
3780c337 MS |
1335 | /* in case init failed to resolve the libthread_db library */ |
1336 | if (!procfs_suppress_run) | |
1337 | return procfs_pid_to_str (pid); | |
1338 | ||
934741a1 | 1339 | if (is_thread (pid)) |
8fc2b417 SG |
1340 | { |
1341 | int lwp; | |
1342 | ||
1343 | lwp = thread_to_lwp (pid, -2); | |
1344 | ||
3780c337 MS |
1345 | if (lwp == -1) |
1346 | sprintf (buf, "Thread %d (defunct)", GET_THREAD (pid)); | |
1347 | else if (lwp != -2) | |
934741a1 | 1348 | sprintf (buf, "Thread %d (LWP %d)", GET_THREAD (pid), GET_LWP (lwp)); |
8fc2b417 | 1349 | else |
934741a1 | 1350 | sprintf (buf, "Thread %d ", GET_THREAD (pid)); |
8fc2b417 | 1351 | } |
3780c337 | 1352 | else if (GET_LWP (pid) != 0) |
934741a1 | 1353 | sprintf (buf, "LWP %d ", GET_LWP (pid)); |
3780c337 MS |
1354 | else |
1355 | sprintf (buf, "process %d ", PIDGET (pid)); | |
8fc2b417 SG |
1356 | |
1357 | return buf; | |
1358 | } | |
1359 | \f | |
0f5b751a | 1360 | |
02227894 DT |
1361 | /* Worker bee for find_new_threads |
1362 | Callback function that gets called once per USER thread (i.e., not | |
1363 | kernel) thread. */ | |
1364 | ||
1365 | static int | |
1366 | sol_find_new_threads_callback(th, ignored) | |
1367 | const td_thrhandle_t *th; | |
1368 | void *ignored; | |
1369 | { | |
1370 | td_err_e retval; | |
1371 | td_thrinfo_t ti; | |
1372 | int pid; | |
1373 | ||
1374 | if ((retval = p_td_thr_get_info(th, &ti)) != TD_OK) | |
1375 | { | |
1376 | return -1; | |
1377 | } | |
1378 | pid = BUILD_THREAD(ti.ti_tid, PIDGET(inferior_pid)); | |
1379 | if (!in_thread_list(pid)) | |
1380 | add_thread(pid); | |
1381 | ||
1382 | return 0; | |
1383 | } | |
1384 | ||
1385 | void | |
1386 | sol_find_new_threads() | |
1387 | { | |
f0fce3b8 JM |
1388 | /* don't do anything if init failed to resolve the libthread_db library */ |
1389 | if (!procfs_suppress_run) | |
1390 | return; | |
1391 | ||
02227894 DT |
1392 | if (inferior_pid == -1) |
1393 | { | |
1394 | printf_filtered("No process.\n"); | |
1395 | return; | |
1396 | } | |
1397 | p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *)0, | |
1398 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, | |
1399 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1400 | } | |
1401 | ||
0274a484 DT |
1402 | static void |
1403 | sol_core_open (filename, from_tty) | |
1404 | char *filename; | |
1405 | int from_tty; | |
1406 | { | |
1407 | orig_core_ops.to_open (filename, from_tty); | |
1408 | } | |
1409 | ||
1410 | static void | |
1411 | sol_core_close (quitting) | |
1412 | int quitting; | |
1413 | { | |
1414 | orig_core_ops.to_close (quitting); | |
1415 | } | |
1416 | ||
1417 | static void | |
1418 | sol_core_detach (args, from_tty) | |
1419 | char *args; | |
1420 | int from_tty; | |
1421 | { | |
1422 | unpush_target (&core_ops); | |
1423 | orig_core_ops.to_detach (args, from_tty); | |
1424 | } | |
1425 | ||
1426 | static void | |
1427 | sol_core_files_info (t) | |
1428 | struct target_ops *t; | |
1429 | { | |
1430 | orig_core_ops.to_files_info (t); | |
1431 | } | |
1432 | ||
0f5b751a MS |
1433 | #ifdef MAINTENANCE_CMDS |
1434 | /* Worker bee for info sol-thread command. This is a callback function that | |
1435 | gets called once for each Solaris thread (ie. not kernel thread) in the | |
1436 | inferior. Print anything interesting that we can think of. */ | |
1437 | ||
1438 | static int | |
1439 | info_cb (th, s) | |
1440 | const td_thrhandle_t *th; | |
1441 | void *s; | |
1442 | { | |
1443 | td_err_e ret; | |
1444 | td_thrinfo_t ti; | |
1445 | struct minimal_symbol *msym; | |
1446 | ||
1447 | if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK) | |
1448 | { | |
1449 | printf_filtered ("%s thread #%d, lwp %d, ", | |
1450 | ti.ti_type == TD_THR_SYSTEM ? "system" : "user ", | |
1451 | ti.ti_tid, ti.ti_lid); | |
1452 | switch (ti.ti_state) { | |
1453 | default: | |
1454 | case TD_THR_UNKNOWN: printf_filtered ("<unknown state>"); break; | |
1455 | case TD_THR_STOPPED: printf_filtered ("(stopped)"); break; | |
1456 | case TD_THR_RUN: printf_filtered ("(run) "); break; | |
1457 | case TD_THR_ACTIVE: printf_filtered ("(active) "); break; | |
1458 | case TD_THR_ZOMBIE: printf_filtered ("(zombie) "); break; | |
1459 | case TD_THR_SLEEP: printf_filtered ("(asleep) "); break; | |
1460 | case TD_THR_STOPPED_ASLEEP: | |
1461 | printf_filtered ("(stopped asleep)"); break; | |
1462 | } | |
1463 | /* Print thr_create start function: */ | |
1464 | if (ti.ti_startfunc != 0) | |
1465 | if (msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc)) | |
1466 | printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym)); | |
1467 | else | |
1468 | printf_filtered (" startfunc: 0x%08x\n", ti.ti_startfunc); | |
1469 | ||
1470 | /* If thread is asleep, print function that went to sleep: */ | |
1471 | if (ti.ti_state == TD_THR_SLEEP) | |
1472 | if (msym = lookup_minimal_symbol_by_pc (ti.ti_pc)) | |
1473 | printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym)); | |
1474 | else | |
1475 | printf_filtered (" - Sleep func: 0x%08x\n", ti.ti_startfunc); | |
1476 | ||
1477 | /* Wrap up line, if necessary */ | |
1478 | if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0) | |
1479 | printf_filtered ("\n"); /* don't you hate counting newlines? */ | |
1480 | } | |
1481 | else | |
1482 | warning ("info sol-thread: failed to get info for thread."); | |
1483 | ||
1484 | return 0; | |
1485 | } | |
1486 | ||
1487 | /* List some state about each Solaris user thread in the inferior. */ | |
1488 | ||
1489 | static void | |
1490 | info_solthreads (args, from_tty) | |
1491 | char *args; | |
1492 | int from_tty; | |
1493 | { | |
1494 | p_td_ta_thr_iter (main_ta, info_cb, args, | |
1495 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, | |
1496 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1497 | } | |
1498 | #endif /* MAINTENANCE_CMDS */ | |
1499 | ||
0274a484 DT |
1500 | static int |
1501 | ignore (addr, contents) | |
1502 | CORE_ADDR addr; | |
1503 | char *contents; | |
1504 | { | |
1505 | return 0; | |
1506 | } | |
1507 | ||
8fc2b417 SG |
1508 | struct target_ops sol_thread_ops = { |
1509 | "solaris-threads", /* to_shortname */ | |
1510 | "Solaris threads and pthread.", /* to_longname */ | |
1511 | "Solaris threads and pthread support.", /* to_doc */ | |
1512 | sol_thread_open, /* to_open */ | |
1513 | 0, /* to_close */ | |
4915acad | 1514 | sol_thread_attach, /* to_attach */ |
4ef1f467 DT |
1515 | NULL, /* to_post_attach */ |
1516 | NULL, /* to_require_attach */ | |
8fc2b417 | 1517 | sol_thread_detach, /* to_detach */ |
4ef1f467 | 1518 | NULL, /* to_require_detach */ |
4915acad SG |
1519 | sol_thread_resume, /* to_resume */ |
1520 | sol_thread_wait, /* to_wait */ | |
4ef1f467 | 1521 | NULL, /* to_post_wait */ |
8fc2b417 SG |
1522 | sol_thread_fetch_registers, /* to_fetch_registers */ |
1523 | sol_thread_store_registers, /* to_store_registers */ | |
1524 | sol_thread_prepare_to_store, /* to_prepare_to_store */ | |
4915acad SG |
1525 | sol_thread_xfer_memory, /* to_xfer_memory */ |
1526 | sol_thread_files_info, /* to_files_info */ | |
8fc2b417 SG |
1527 | memory_insert_breakpoint, /* to_insert_breakpoint */ |
1528 | memory_remove_breakpoint, /* to_remove_breakpoint */ | |
1529 | terminal_init_inferior, /* to_terminal_init */ | |
1530 | terminal_inferior, /* to_terminal_inferior */ | |
1531 | terminal_ours_for_output, /* to_terminal_ours_for_output */ | |
1532 | terminal_ours, /* to_terminal_ours */ | |
1533 | child_terminal_info, /* to_terminal_info */ | |
1534 | sol_thread_kill_inferior, /* to_kill */ | |
1535 | 0, /* to_load */ | |
1536 | 0, /* to_lookup_symbol */ | |
1537 | sol_thread_create_inferior, /* to_create_inferior */ | |
4ef1f467 DT |
1538 | NULL, /* to_post_startup_inferior */ |
1539 | NULL, /* to_acknowledge_created_inferior */ | |
1540 | NULL, /* to_clone_and_follow_inferior */ | |
1541 | NULL, /* to_post_follow_inferior_by_clone */ | |
1542 | NULL, /* to_insert_fork_catchpoint */ | |
1543 | NULL, /* to_remove_fork_catchpoint */ | |
1544 | NULL, /* to_insert_vfork_catchpoint */ | |
1545 | NULL, /* to_remove_vfork_catchpoint */ | |
1546 | NULL, /* to_has_forked */ | |
1547 | NULL, /* to_has_vforked */ | |
1548 | NULL, /* to_can_follow_vfork_prior_to_exec */ | |
1549 | NULL, /* to_post_follow_vfork */ | |
1550 | NULL, /* to_insert_exec_catchpoint */ | |
1551 | NULL, /* to_remove_exec_catchpoint */ | |
1552 | NULL, /* to_has_execd */ | |
1553 | NULL, /* to_reported_exec_events_per_exec_call */ | |
1554 | NULL, /* to_has_syscall_event */ | |
1555 | NULL, /* to_has_exited */ | |
8fc2b417 SG |
1556 | sol_thread_mourn_inferior, /* to_mourn_inferior */ |
1557 | sol_thread_can_run, /* to_can_run */ | |
1558 | sol_thread_notice_signals, /* to_notice_signals */ | |
1559 | sol_thread_alive, /* to_thread_alive */ | |
1560 | sol_thread_stop, /* to_stop */ | |
4ef1f467 DT |
1561 | NULL, /* to_enable_exception_callback */ |
1562 | NULL, /* to_get_current_exception_event */ | |
1563 | NULL, /* to_pid_to_exec_file */ | |
1564 | NULL, /* to_core_file_to_sym_file */ | |
8fc2b417 SG |
1565 | process_stratum, /* to_stratum */ |
1566 | 0, /* to_next */ | |
1567 | 1, /* to_has_all_memory */ | |
1568 | 1, /* to_has_memory */ | |
1569 | 1, /* to_has_stack */ | |
1570 | 1, /* to_has_registers */ | |
1571 | 1, /* to_has_execution */ | |
1572 | 0, /* sections */ | |
1573 | 0, /* sections_end */ | |
1574 | OPS_MAGIC /* to_magic */ | |
1575 | }; | |
1576 | ||
0274a484 DT |
1577 | struct target_ops sol_core_ops = { |
1578 | "solaris-core", /* to_shortname */ | |
1579 | "Solaris core threads and pthread.", /* to_longname */ | |
1580 | "Solaris threads and pthread support for core files.", /* to_doc */ | |
1581 | sol_core_open, /* to_open */ | |
1582 | sol_core_close, /* to_close */ | |
1583 | sol_thread_attach, /* XXX to_attach */ | |
4ef1f467 DT |
1584 | NULL, /* to_post_attach */ |
1585 | NULL, /* to_require_attach */ | |
0274a484 | 1586 | sol_core_detach, /* to_detach */ |
4ef1f467 | 1587 | NULL, /* to_require_detach */ |
0274a484 DT |
1588 | 0, /* to_resume */ |
1589 | 0, /* to_wait */ | |
4ef1f467 | 1590 | NULL, /* to_post_wait */ |
0274a484 DT |
1591 | sol_thread_fetch_registers, /* to_fetch_registers */ |
1592 | 0, /* to_store_registers */ | |
1593 | 0, /* to_prepare_to_store */ | |
1594 | sol_thread_xfer_memory, /* XXX to_xfer_memory */ | |
1595 | sol_core_files_info, /* to_files_info */ | |
1596 | ignore, /* to_insert_breakpoint */ | |
1597 | ignore, /* to_remove_breakpoint */ | |
1598 | 0, /* to_terminal_init */ | |
1599 | 0, /* to_terminal_inferior */ | |
1600 | 0, /* to_terminal_ours_for_output */ | |
1601 | 0, /* to_terminal_ours */ | |
1602 | 0, /* to_terminal_info */ | |
1603 | 0, /* to_kill */ | |
1604 | 0, /* to_load */ | |
1605 | 0, /* to_lookup_symbol */ | |
1606 | sol_thread_create_inferior, /* XXX to_create_inferior */ | |
4ef1f467 DT |
1607 | NULL, /* to_post_startup_inferior */ |
1608 | NULL, /* to_acknowledge_created_inferior */ | |
1609 | NULL, /* to_clone_and_follow_inferior */ | |
1610 | NULL, /* to_post_follow_inferior_by_clone */ | |
1611 | NULL, /* to_insert_fork_catchpoint */ | |
1612 | NULL, /* to_remove_fork_catchpoint */ | |
1613 | NULL, /* to_insert_vfork_catchpoint */ | |
1614 | NULL, /* to_remove_vfork_catchpoint */ | |
1615 | NULL, /* to_has_forked */ | |
1616 | NULL, /* to_has_vforked */ | |
1617 | NULL, /* to_can_follow_vfork_prior_to_exec */ | |
1618 | NULL, /* to_post_follow_vfork */ | |
1619 | NULL, /* to_insert_exec_catchpoint */ | |
1620 | NULL, /* to_remove_exec_catchpoint */ | |
1621 | NULL, /* to_has_execd */ | |
1622 | NULL, /* to_reported_exec_events_per_exec_call */ | |
1623 | NULL, /* to_has_syscall_event */ | |
1624 | NULL, /* to_has_exited */ | |
0274a484 DT |
1625 | 0, /* to_mourn_inferior */ |
1626 | 0, /* to_can_run */ | |
1627 | 0, /* to_notice_signals */ | |
1628 | 0, /* to_thread_alive */ | |
1629 | 0, /* to_stop */ | |
4ef1f467 DT |
1630 | NULL, /* to_enable_exception_callback */ |
1631 | NULL, /* to_get_current_exception_event */ | |
1632 | NULL, /* to_pid_to_exec_file */ | |
1633 | NULL, /* to_core_file_to_sym_file */ | |
0274a484 DT |
1634 | core_stratum, /* to_stratum */ |
1635 | 0, /* to_next */ | |
1636 | 0, /* to_has_all_memory */ | |
1637 | 1, /* to_has_memory */ | |
1638 | 1, /* to_has_stack */ | |
1639 | 1, /* to_has_registers */ | |
1640 | 0, /* to_has_execution */ | |
1641 | 0, /* sections */ | |
1642 | 0, /* sections_end */ | |
1643 | OPS_MAGIC /* to_magic */ | |
1644 | }; | |
1645 | ||
1646 | /* we suppress the call to add_target of core_ops in corelow because | |
1647 | if there are two targets in the stratum core_stratum, find_core_target | |
1648 | won't know which one to return. see corelow.c for an additonal | |
1649 | comment on coreops_suppress_target. */ | |
1650 | int coreops_suppress_target = 1; | |
1651 | ||
8fc2b417 SG |
1652 | void |
1653 | _initialize_sol_thread () | |
1654 | { | |
4915acad SG |
1655 | void *dlhandle; |
1656 | ||
1657 | dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW); | |
1658 | if (!dlhandle) | |
1659 | goto die; | |
1660 | ||
1661 | #define resolve(X) \ | |
1662 | if (!(p_##X = dlsym (dlhandle, #X))) \ | |
1663 | goto die; | |
1664 | ||
1665 | resolve (td_log); | |
1666 | resolve (td_ta_new); | |
1667 | resolve (td_ta_delete); | |
1668 | resolve (td_init); | |
1669 | resolve (td_ta_get_ph); | |
1670 | resolve (td_ta_get_nthreads); | |
1671 | resolve (td_ta_tsd_iter); | |
1672 | resolve (td_ta_thr_iter); | |
1673 | resolve (td_thr_validate); | |
1674 | resolve (td_thr_tsd); | |
1675 | resolve (td_thr_get_info); | |
1676 | resolve (td_thr_getfpregs); | |
1677 | resolve (td_thr_getxregsize); | |
1678 | resolve (td_thr_getxregs); | |
1679 | resolve (td_thr_sigsetmask); | |
1680 | resolve (td_thr_setprio); | |
1681 | resolve (td_thr_setsigpending); | |
1682 | resolve (td_thr_setfpregs); | |
1683 | resolve (td_thr_setxregs); | |
1684 | resolve (td_ta_map_id2thr); | |
1685 | resolve (td_ta_map_lwp2thr); | |
1686 | resolve (td_thr_getgregs); | |
1687 | resolve (td_thr_setgregs); | |
1688 | ||
8fc2b417 SG |
1689 | add_target (&sol_thread_ops); |
1690 | ||
1691 | procfs_suppress_run = 1; | |
4915acad | 1692 | |
0f5b751a MS |
1693 | #ifdef MAINTENANCE_CMDS |
1694 | add_cmd ("sol-threads", class_maintenance, info_solthreads, | |
1695 | "Show info on Solaris user threads.\n", &maintenanceinfolist); | |
1696 | #endif /* MAINTENANCE_CMDS */ | |
1697 | ||
0274a484 DT |
1698 | memcpy(&orig_core_ops, &core_ops, sizeof (struct target_ops)); |
1699 | memcpy(&core_ops, &sol_core_ops, sizeof (struct target_ops)); | |
1700 | add_target (&core_ops); | |
1701 | ||
4915acad SG |
1702 | return; |
1703 | ||
1704 | die: | |
1705 | ||
1706 | fprintf_unfiltered (gdb_stderr, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ()); | |
1707 | ||
1708 | if (dlhandle) | |
1709 | dlclose (dlhandle); | |
1710 | ||
0274a484 DT |
1711 | /* allow the user to debug non-threaded core files */ |
1712 | add_target(&core_ops); | |
1713 | ||
4915acad | 1714 | return; |
8fc2b417 | 1715 | } |