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c906108c SS |
1 | /* Low level interface for debugging Solaris threads for GDB, the GNU debugger. |
2 | Copyright 1996, 1997, 1998 Free Software Foundation, Inc. | |
3 | ||
c5aa993b | 4 | This file is part of GDB. |
c906108c | 5 | |
c5aa993b JM |
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. | |
c906108c | 10 | |
c5aa993b JM |
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. | |
c906108c | 15 | |
c5aa993b JM |
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, | |
19 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
20 | |
21 | /* This module implements a sort of half target that sits between the | |
22 | machine-independent parts of GDB and the /proc interface (procfs.c) to | |
23 | provide access to the Solaris user-mode thread implementation. | |
24 | ||
25 | Solaris threads are true user-mode threads, which are invoked via the thr_* | |
26 | and pthread_* (native and Posix respectivly) interfaces. These are mostly | |
27 | implemented in user-space, with all thread context kept in various | |
28 | structures that live in the user's heap. These should not be confused with | |
29 | lightweight processes (LWPs), which are implemented by the kernel, and | |
30 | scheduled without explicit intervention by the process. | |
31 | ||
32 | Just to confuse things a little, Solaris threads (both native and Posix) are | |
33 | actually implemented using LWPs. In general, there are going to be more | |
34 | threads than LWPs. There is no fixed correspondence between a thread and an | |
35 | LWP. When a thread wants to run, it gets scheduled onto the first available | |
36 | LWP and can therefore migrate from one LWP to another as time goes on. A | |
37 | sleeping thread may not be associated with an LWP at all! | |
38 | ||
39 | To make it possible to mess with threads, Sun provides a library called | |
40 | libthread_db.so.1 (not to be confused with libthread_db.so.0, which doesn't | |
41 | have a published interface). This interface has an upper part, which it | |
42 | provides, and a lower part which I provide. The upper part consists of the | |
43 | td_* routines, which allow me to find all the threads, query their state, | |
44 | etc... The lower part consists of all of the ps_*, which are used by the | |
45 | td_* routines to read/write memory, manipulate LWPs, lookup symbols, etc... | |
46 | The ps_* routines actually do most of their work by calling functions in | |
47 | procfs.c. */ | |
48 | ||
49 | #include "defs.h" | |
50 | #include <thread.h> | |
51 | #include <proc_service.h> | |
52 | #include <thread_db.h> | |
53 | #include "gdbthread.h" | |
54 | #include "target.h" | |
55 | #include "inferior.h" | |
56 | #include <fcntl.h> | |
c906108c SS |
57 | #include <sys/stat.h> |
58 | #include <dlfcn.h> | |
59 | #include "gdbcmd.h" | |
60 | ||
c5aa993b JM |
61 | extern struct target_ops sol_thread_ops; /* Forward declaration */ |
62 | extern struct target_ops sol_core_ops; /* Forward declaration */ | |
c906108c SS |
63 | |
64 | /* place to store core_ops before we overwrite it */ | |
65 | static struct target_ops orig_core_ops; | |
66 | ||
67 | struct target_ops sol_thread_ops; | |
68 | struct target_ops sol_core_ops; | |
69 | ||
70 | extern int procfs_suppress_run; | |
c5aa993b JM |
71 | extern struct target_ops procfs_ops; /* target vector for procfs.c */ |
72 | extern struct target_ops core_ops; /* target vector for corelow.c */ | |
c906108c SS |
73 | extern char *procfs_pid_to_str PARAMS ((int pid)); |
74 | ||
75 | /* Note that these prototypes differ slightly from those used in procfs.c | |
76 | for of two reasons. One, we can't use gregset_t, as that's got a whole | |
77 | different meaning under Solaris (also, see above). Two, we can't use the | |
78 | pointer form here as these are actually arrays of ints (for Sparc's at | |
79 | least), and are automatically coerced into pointers to ints when used as | |
80 | parameters. That makes it impossible to avoid a compiler warning when | |
81 | passing pr{g fp}regset_t's from a parameter to an argument of one of | |
82 | these functions. */ | |
83 | ||
84 | extern void supply_gregset PARAMS ((const prgregset_t)); | |
85 | extern void fill_gregset PARAMS ((prgregset_t, int)); | |
86 | extern void supply_fpregset PARAMS ((const prfpregset_t *)); | |
87 | extern void fill_fpregset PARAMS ((prfpregset_t *, int)); | |
88 | ||
89 | /* This struct is defined by us, but mainly used for the proc_service interface. | |
90 | We don't have much use for it, except as a handy place to get a real pid | |
91 | for memory accesses. */ | |
92 | ||
93 | struct ps_prochandle | |
c5aa993b JM |
94 | { |
95 | pid_t pid; | |
96 | }; | |
c906108c SS |
97 | |
98 | struct string_map | |
c5aa993b JM |
99 | { |
100 | int num; | |
101 | char *str; | |
102 | }; | |
c906108c SS |
103 | |
104 | static struct ps_prochandle main_ph; | |
105 | static td_thragent_t *main_ta; | |
106 | static int sol_thread_active = 0; | |
107 | ||
c5aa993b | 108 | static struct cleanup *save_inferior_pid PARAMS ((void)); |
7a292a7a | 109 | static void restore_inferior_pid PARAMS ((void *pid)); |
c906108c SS |
110 | static char *td_err_string PARAMS ((td_err_e errcode)); |
111 | static char *td_state_string PARAMS ((td_thr_state_e statecode)); | |
c5aa993b | 112 | static int thread_to_lwp PARAMS ((int thread_id, int default_lwp)); |
c906108c SS |
113 | static void sol_thread_resume PARAMS ((int pid, int step, |
114 | enum target_signal signo)); | |
115 | static int lwp_to_thread PARAMS ((int lwp)); | |
116 | static int sol_thread_alive PARAMS ((int pid)); | |
117 | static void sol_core_close PARAMS ((int quitting)); | |
118 | ||
119 | static void init_sol_thread_ops PARAMS ((void)); | |
120 | static void init_sol_core_ops PARAMS ((void)); | |
121 | ||
d4f3574e SS |
122 | /* Default definitions: These must be defined in tm.h |
123 | if they are to be shared with a process module such as procfs. */ | |
124 | ||
2f09097b ND |
125 | #define THREAD_FLAG 0x80000000 |
126 | #define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0) | |
127 | #define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0) | |
128 | #define GET_LWP(PID) TIDGET (PID) | |
129 | #define GET_THREAD(PID) TIDGET (PID) | |
130 | #define BUILD_LWP(TID, PID) MERGEPID (PID, TID) | |
d4f3574e | 131 | |
2f09097b | 132 | #define BUILD_THREAD(TID, PID) (MERGEPID (PID, TID) | THREAD_FLAG) |
c906108c SS |
133 | |
134 | /* Pointers to routines from lithread_db resolved by dlopen() */ | |
135 | ||
e245aa6b MS |
136 | static void (*p_td_log) (const int on_off); |
137 | static td_err_e (*p_td_ta_new) (const struct ps_prochandle * ph_p, | |
138 | td_thragent_t ** ta_pp); | |
139 | static td_err_e (*p_td_ta_delete) (td_thragent_t * ta_p); | |
140 | static td_err_e (*p_td_init) (void); | |
141 | static td_err_e (*p_td_ta_get_ph) (const td_thragent_t * ta_p, | |
142 | struct ps_prochandle ** ph_pp); | |
143 | static td_err_e (*p_td_ta_get_nthreads) (const td_thragent_t * ta_p, | |
144 | int *nthread_p); | |
145 | static td_err_e (*p_td_ta_tsd_iter) (const td_thragent_t * ta_p, | |
146 | td_key_iter_f * cb, | |
147 | void *cbdata_p); | |
148 | static td_err_e (*p_td_ta_thr_iter) (const td_thragent_t * ta_p, | |
149 | td_thr_iter_f * cb, | |
150 | void *cbdata_p, | |
151 | td_thr_state_e state, | |
152 | int ti_pri, | |
153 | sigset_t * ti_sigmask_p, | |
154 | unsigned ti_user_flags); | |
155 | static td_err_e (*p_td_thr_validate) (const td_thrhandle_t * th_p); | |
156 | static td_err_e (*p_td_thr_tsd) (const td_thrhandle_t * th_p, | |
157 | const thread_key_t key, | |
158 | void **data_pp); | |
159 | static td_err_e (*p_td_thr_get_info) (const td_thrhandle_t * th_p, | |
160 | td_thrinfo_t * ti_p); | |
161 | static td_err_e (*p_td_thr_getfpregs) (const td_thrhandle_t * th_p, | |
162 | prfpregset_t * fpregset); | |
163 | static td_err_e (*p_td_thr_getxregsize) (const td_thrhandle_t * th_p, | |
164 | int *xregsize); | |
165 | static td_err_e (*p_td_thr_getxregs) (const td_thrhandle_t * th_p, | |
166 | const caddr_t xregset); | |
167 | static td_err_e (*p_td_thr_sigsetmask) (const td_thrhandle_t * th_p, | |
168 | const sigset_t ti_sigmask); | |
169 | static td_err_e (*p_td_thr_setprio) (const td_thrhandle_t * th_p, | |
170 | const int ti_pri); | |
171 | static td_err_e (*p_td_thr_setsigpending) (const td_thrhandle_t * th_p, | |
172 | const uchar_t ti_pending_flag, | |
173 | const sigset_t ti_pending); | |
174 | static td_err_e (*p_td_thr_setfpregs) (const td_thrhandle_t * th_p, | |
175 | const prfpregset_t * fpregset); | |
176 | static td_err_e (*p_td_thr_setxregs) (const td_thrhandle_t * th_p, | |
177 | const caddr_t xregset); | |
178 | static td_err_e (*p_td_ta_map_id2thr) (const td_thragent_t * ta_p, | |
179 | thread_t tid, | |
180 | td_thrhandle_t * th_p); | |
181 | static td_err_e (*p_td_ta_map_lwp2thr) (const td_thragent_t * ta_p, | |
182 | lwpid_t lwpid, | |
183 | td_thrhandle_t * th_p); | |
184 | static td_err_e (*p_td_thr_getgregs) (const td_thrhandle_t * th_p, | |
185 | prgregset_t regset); | |
186 | static td_err_e (*p_td_thr_setgregs) (const td_thrhandle_t * th_p, | |
187 | const prgregset_t regset); | |
188 | ||
c906108c SS |
189 | /* |
190 | ||
c5aa993b | 191 | LOCAL FUNCTION |
c906108c | 192 | |
c5aa993b | 193 | td_err_string - Convert a thread_db error code to a string |
c906108c | 194 | |
c5aa993b | 195 | SYNOPSIS |
c906108c | 196 | |
c5aa993b | 197 | char * td_err_string (errcode) |
c906108c | 198 | |
c5aa993b | 199 | DESCRIPTION |
c906108c | 200 | |
c5aa993b JM |
201 | Return the thread_db error string associated with errcode. If errcode |
202 | is unknown, then return a message. | |
c906108c SS |
203 | |
204 | */ | |
205 | ||
206 | static char * | |
207 | td_err_string (errcode) | |
208 | td_err_e errcode; | |
209 | { | |
210 | static struct string_map | |
c5aa993b JM |
211 | td_err_table[] = |
212 | { | |
213 | {TD_OK, "generic \"call succeeded\""}, | |
214 | {TD_ERR, "generic error."}, | |
215 | {TD_NOTHR, "no thread can be found to satisfy query"}, | |
216 | {TD_NOSV, "no synch. variable can be found to satisfy query"}, | |
217 | {TD_NOLWP, "no lwp can be found to satisfy query"}, | |
218 | {TD_BADPH, "invalid process handle"}, | |
219 | {TD_BADTH, "invalid thread handle"}, | |
220 | {TD_BADSH, "invalid synchronization handle"}, | |
221 | {TD_BADTA, "invalid thread agent"}, | |
222 | {TD_BADKEY, "invalid key"}, | |
223 | {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"}, | |
224 | {TD_NOFPREGS, "FPU register set not available for given thread"}, | |
225 | {TD_NOLIBTHREAD, "application not linked with libthread"}, | |
226 | {TD_NOEVENT, "requested event is not supported"}, | |
227 | {TD_NOCAPAB, "capability not available"}, | |
228 | {TD_DBERR, "Debugger service failed"}, | |
229 | {TD_NOAPLIC, "Operation not applicable to"}, | |
230 | {TD_NOTSD, "No thread specific data for this thread"}, | |
231 | {TD_MALLOC, "Malloc failed"}, | |
232 | {TD_PARTIALREG, "Only part of register set was writen/read"}, | |
233 | {TD_NOXREGS, "X register set not available for given thread"} | |
234 | }; | |
c906108c SS |
235 | const int td_err_size = sizeof td_err_table / sizeof (struct string_map); |
236 | int i; | |
237 | static char buf[50]; | |
238 | ||
239 | for (i = 0; i < td_err_size; i++) | |
240 | if (td_err_table[i].num == errcode) | |
241 | return td_err_table[i].str; | |
c5aa993b | 242 | |
c906108c SS |
243 | sprintf (buf, "Unknown thread_db error code: %d", errcode); |
244 | ||
245 | return buf; | |
246 | } | |
247 | \f | |
248 | /* | |
249 | ||
c5aa993b | 250 | LOCAL FUNCTION |
c906108c | 251 | |
c5aa993b | 252 | td_state_string - Convert a thread_db state code to a string |
c906108c | 253 | |
c5aa993b | 254 | SYNOPSIS |
c906108c | 255 | |
c5aa993b | 256 | char * td_state_string (statecode) |
c906108c | 257 | |
c5aa993b | 258 | DESCRIPTION |
c906108c | 259 | |
c5aa993b JM |
260 | Return the thread_db state string associated with statecode. If |
261 | statecode is unknown, then return a message. | |
c906108c SS |
262 | |
263 | */ | |
264 | ||
265 | static char * | |
266 | td_state_string (statecode) | |
267 | td_thr_state_e statecode; | |
268 | { | |
269 | static struct string_map | |
c5aa993b JM |
270 | td_thr_state_table[] = |
271 | { | |
272 | {TD_THR_ANY_STATE, "any state"}, | |
273 | {TD_THR_UNKNOWN, "unknown"}, | |
274 | {TD_THR_STOPPED, "stopped"}, | |
275 | {TD_THR_RUN, "run"}, | |
276 | {TD_THR_ACTIVE, "active"}, | |
277 | {TD_THR_ZOMBIE, "zombie"}, | |
278 | {TD_THR_SLEEP, "sleep"}, | |
279 | {TD_THR_STOPPED_ASLEEP, "stopped asleep"} | |
280 | }; | |
c906108c SS |
281 | const int td_thr_state_table_size = sizeof td_thr_state_table / sizeof (struct string_map); |
282 | int i; | |
283 | static char buf[50]; | |
284 | ||
285 | for (i = 0; i < td_thr_state_table_size; i++) | |
286 | if (td_thr_state_table[i].num == statecode) | |
287 | return td_thr_state_table[i].str; | |
c5aa993b | 288 | |
c906108c SS |
289 | sprintf (buf, "Unknown thread_db state code: %d", statecode); |
290 | ||
291 | return buf; | |
292 | } | |
293 | \f | |
294 | /* | |
295 | ||
c5aa993b | 296 | LOCAL FUNCTION |
c906108c | 297 | |
c5aa993b | 298 | thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id. |
c906108c | 299 | |
c5aa993b | 300 | SYNOPSIS |
c906108c | 301 | |
c5aa993b | 302 | int thread_to_lwp (thread_id, default_lwp) |
c906108c | 303 | |
c5aa993b | 304 | DESCRIPTION |
c906108c | 305 | |
c5aa993b JM |
306 | This function converts a Posix or Solaris thread id to a lightweight |
307 | process id. If thread_id is non-existent, that's an error. If it's | |
308 | an inactive thread, then we return default_lwp. | |
c906108c | 309 | |
c5aa993b | 310 | NOTES |
c906108c | 311 | |
c5aa993b | 312 | This function probably shouldn't call error()... |
c906108c SS |
313 | |
314 | */ | |
315 | ||
316 | static int | |
317 | thread_to_lwp (thread_id, default_lwp) | |
318 | int thread_id; | |
319 | int default_lwp; | |
320 | { | |
321 | td_thrinfo_t ti; | |
322 | td_thrhandle_t th; | |
323 | td_err_e val; | |
324 | ||
325 | if (is_lwp (thread_id)) | |
c5aa993b | 326 | return thread_id; /* It's already an LWP id */ |
c906108c SS |
327 | |
328 | /* It's a thread. Convert to lwp */ | |
329 | ||
330 | val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th); | |
331 | if (val == TD_NOTHR) | |
c5aa993b | 332 | return -1; /* thread must have terminated */ |
c906108c SS |
333 | else if (val != TD_OK) |
334 | error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val)); | |
335 | ||
336 | val = p_td_thr_get_info (&th, &ti); | |
337 | if (val == TD_NOTHR) | |
c5aa993b | 338 | return -1; /* thread must have terminated */ |
c906108c SS |
339 | else if (val != TD_OK) |
340 | error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val)); | |
341 | ||
342 | if (ti.ti_state != TD_THR_ACTIVE) | |
343 | { | |
344 | if (default_lwp != -1) | |
345 | return default_lwp; | |
346 | error ("thread_to_lwp: thread state not active: %s", | |
347 | td_state_string (ti.ti_state)); | |
348 | } | |
349 | ||
350 | return BUILD_LWP (ti.ti_lid, PIDGET (thread_id)); | |
351 | } | |
352 | \f | |
353 | /* | |
354 | ||
c5aa993b | 355 | LOCAL FUNCTION |
c906108c | 356 | |
c5aa993b | 357 | lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id. |
c906108c | 358 | |
c5aa993b | 359 | SYNOPSIS |
c906108c | 360 | |
c5aa993b | 361 | int lwp_to_thread (lwp_id) |
c906108c | 362 | |
c5aa993b | 363 | DESCRIPTION |
c906108c | 364 | |
c5aa993b JM |
365 | This function converts a lightweight process id to a Posix or Solaris |
366 | thread id. If thread_id is non-existent, that's an error. | |
c906108c | 367 | |
c5aa993b | 368 | NOTES |
c906108c | 369 | |
c5aa993b | 370 | This function probably shouldn't call error()... |
c906108c SS |
371 | |
372 | */ | |
373 | ||
374 | static int | |
375 | lwp_to_thread (lwp) | |
376 | int lwp; | |
377 | { | |
378 | td_thrinfo_t ti; | |
379 | td_thrhandle_t th; | |
380 | td_err_e val; | |
381 | ||
382 | if (is_thread (lwp)) | |
383 | return lwp; /* It's already a thread id */ | |
384 | ||
385 | /* It's an lwp. Convert it to a thread id. */ | |
386 | ||
387 | if (!sol_thread_alive (lwp)) | |
388 | return -1; /* defunct lwp */ | |
389 | ||
390 | val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th); | |
391 | if (val == TD_NOTHR) | |
c5aa993b | 392 | return -1; /* thread must have terminated */ |
c906108c SS |
393 | else if (val != TD_OK) |
394 | error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val)); | |
395 | ||
396 | val = p_td_thr_validate (&th); | |
397 | if (val == TD_NOTHR) | |
e245aa6b MS |
398 | return lwp; /* libthread doesn't know about it; |
399 | just return lwp */ | |
c906108c SS |
400 | else if (val != TD_OK) |
401 | error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val)); | |
402 | ||
403 | val = p_td_thr_get_info (&th, &ti); | |
404 | if (val == TD_NOTHR) | |
c5aa993b | 405 | return -1; /* thread must have terminated */ |
c906108c SS |
406 | else if (val != TD_OK) |
407 | error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val)); | |
408 | ||
409 | return BUILD_THREAD (ti.ti_tid, PIDGET (lwp)); | |
410 | } | |
411 | \f | |
412 | /* | |
413 | ||
c5aa993b | 414 | LOCAL FUNCTION |
c906108c | 415 | |
c5aa993b JM |
416 | save_inferior_pid - Save inferior_pid on the cleanup list |
417 | restore_inferior_pid - Restore inferior_pid from the cleanup list | |
c906108c | 418 | |
c5aa993b | 419 | SYNOPSIS |
c906108c | 420 | |
c5aa993b JM |
421 | struct cleanup *save_inferior_pid () |
422 | void restore_inferior_pid (int pid) | |
c906108c | 423 | |
c5aa993b | 424 | DESCRIPTION |
c906108c | 425 | |
c5aa993b JM |
426 | These two functions act in unison to restore inferior_pid in |
427 | case of an error. | |
c906108c | 428 | |
c5aa993b | 429 | NOTES |
c906108c | 430 | |
c5aa993b JM |
431 | inferior_pid is a global variable that needs to be changed by many of |
432 | these routines before calling functions in procfs.c. In order to | |
433 | guarantee that inferior_pid gets restored (in case of errors), you | |
434 | need to call save_inferior_pid before changing it. At the end of the | |
435 | function, you should invoke do_cleanups to restore it. | |
c906108c SS |
436 | |
437 | */ | |
438 | ||
439 | ||
440 | static struct cleanup * | |
441 | save_inferior_pid () | |
442 | { | |
c5aa993b | 443 | return make_cleanup (restore_inferior_pid, (void *) inferior_pid); |
c906108c SS |
444 | } |
445 | ||
446 | static void | |
447 | restore_inferior_pid (pid) | |
7a292a7a | 448 | void *pid; |
c906108c | 449 | { |
7a292a7a | 450 | inferior_pid = (int) pid; |
c906108c SS |
451 | } |
452 | \f | |
453 | ||
454 | /* Most target vector functions from here on actually just pass through to | |
455 | procfs.c, as they don't need to do anything specific for threads. */ | |
456 | ||
457 | ||
458 | /* ARGSUSED */ | |
459 | static void | |
460 | sol_thread_open (arg, from_tty) | |
461 | char *arg; | |
462 | int from_tty; | |
463 | { | |
464 | procfs_ops.to_open (arg, from_tty); | |
465 | } | |
466 | ||
467 | /* Attach to process PID, then initialize for debugging it | |
468 | and wait for the trace-trap that results from attaching. */ | |
469 | ||
470 | static void | |
471 | sol_thread_attach (args, from_tty) | |
472 | char *args; | |
473 | int from_tty; | |
474 | { | |
475 | procfs_ops.to_attach (args, from_tty); | |
476 | /* Must get symbols from solibs before libthread_db can run! */ | |
c5aa993b | 477 | SOLIB_ADD ((char *) 0, from_tty, (struct target_ops *) 0); |
c906108c SS |
478 | if (sol_thread_active) |
479 | { | |
480 | printf_filtered ("sol-thread active.\n"); | |
c5aa993b | 481 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
482 | push_target (&sol_thread_ops); |
483 | inferior_pid = lwp_to_thread (inferior_pid); | |
484 | if (inferior_pid == -1) | |
485 | inferior_pid = main_ph.pid; | |
486 | else | |
487 | add_thread (inferior_pid); | |
488 | } | |
489 | /* XXX - might want to iterate over all the threads and register them. */ | |
490 | } | |
491 | ||
492 | /* Take a program previously attached to and detaches it. | |
493 | The program resumes execution and will no longer stop | |
494 | on signals, etc. We'd better not have left any breakpoints | |
495 | in the program or it'll die when it hits one. For this | |
496 | to work, it may be necessary for the process to have been | |
497 | previously attached. It *might* work if the program was | |
498 | started via the normal ptrace (PTRACE_TRACEME). */ | |
499 | ||
500 | static void | |
501 | sol_thread_detach (args, from_tty) | |
502 | char *args; | |
503 | int from_tty; | |
504 | { | |
d4f3574e | 505 | inferior_pid = PIDGET (main_ph.pid); |
c906108c SS |
506 | unpush_target (&sol_thread_ops); |
507 | procfs_ops.to_detach (args, from_tty); | |
508 | } | |
509 | ||
510 | /* Resume execution of process PID. If STEP is nozero, then | |
511 | just single step it. If SIGNAL is nonzero, restart it with that | |
512 | signal activated. We may have to convert pid from a thread-id to an LWP id | |
513 | for procfs. */ | |
514 | ||
515 | static void | |
516 | sol_thread_resume (pid, step, signo) | |
517 | int pid; | |
518 | int step; | |
519 | enum target_signal signo; | |
520 | { | |
521 | struct cleanup *old_chain; | |
522 | ||
523 | old_chain = save_inferior_pid (); | |
524 | ||
525 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
526 | if (inferior_pid == -1) | |
527 | inferior_pid = procfs_first_available (); | |
528 | ||
529 | if (pid != -1) | |
530 | { | |
531 | int save_pid = pid; | |
532 | ||
533 | pid = thread_to_lwp (pid, -2); | |
534 | if (pid == -2) /* Inactive thread */ | |
535 | error ("This version of Solaris can't start inactive threads."); | |
536 | if (info_verbose && pid == -1) | |
c5aa993b | 537 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
538 | GET_THREAD (save_pid)); |
539 | } | |
540 | ||
541 | procfs_ops.to_resume (pid, step, signo); | |
542 | ||
543 | do_cleanups (old_chain); | |
544 | } | |
545 | ||
546 | /* Wait for any threads to stop. We may have to convert PID from a thread id | |
547 | to a LWP id, and vice versa on the way out. */ | |
548 | ||
549 | static int | |
550 | sol_thread_wait (pid, ourstatus) | |
551 | int pid; | |
552 | struct target_waitstatus *ourstatus; | |
553 | { | |
554 | int rtnval; | |
555 | int save_pid; | |
556 | struct cleanup *old_chain; | |
557 | ||
558 | save_pid = inferior_pid; | |
559 | old_chain = save_inferior_pid (); | |
560 | ||
561 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
562 | if (inferior_pid == -1) | |
563 | inferior_pid = procfs_first_available (); | |
564 | ||
565 | if (pid != -1) | |
566 | { | |
567 | int save_pid = pid; | |
568 | ||
569 | pid = thread_to_lwp (pid, -2); | |
570 | if (pid == -2) /* Inactive thread */ | |
571 | error ("This version of Solaris can't start inactive threads."); | |
572 | if (info_verbose && pid == -1) | |
c5aa993b | 573 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
574 | GET_THREAD (save_pid)); |
575 | } | |
576 | ||
577 | rtnval = procfs_ops.to_wait (pid, ourstatus); | |
578 | ||
579 | if (ourstatus->kind != TARGET_WAITKIND_EXITED) | |
580 | { | |
581 | /* Map the LWP of interest back to the appropriate thread ID */ | |
582 | rtnval = lwp_to_thread (rtnval); | |
583 | if (rtnval == -1) | |
584 | rtnval = save_pid; | |
585 | ||
586 | /* See if we have a new thread */ | |
587 | if (is_thread (rtnval) | |
588 | && rtnval != save_pid | |
589 | && !in_thread_list (rtnval)) | |
590 | { | |
591 | printf_filtered ("[New %s]\n", target_pid_to_str (rtnval)); | |
592 | add_thread (rtnval); | |
593 | } | |
594 | } | |
595 | ||
596 | /* During process initialization, we may get here without the thread package | |
597 | being initialized, since that can only happen after we've found the shared | |
598 | libs. */ | |
599 | ||
600 | do_cleanups (old_chain); | |
601 | ||
602 | return rtnval; | |
603 | } | |
604 | ||
605 | static void | |
606 | sol_thread_fetch_registers (regno) | |
607 | int regno; | |
608 | { | |
609 | thread_t thread; | |
610 | td_thrhandle_t thandle; | |
611 | td_err_e val; | |
612 | prgregset_t gregset; | |
613 | prfpregset_t fpregset; | |
614 | #if 0 | |
615 | int xregsize; | |
616 | caddr_t xregset; | |
617 | #endif | |
618 | ||
619 | if (!is_thread (inferior_pid)) | |
c5aa993b | 620 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
621 | if (target_has_execution) |
622 | procfs_ops.to_fetch_registers (regno); | |
623 | else | |
624 | orig_core_ops.to_fetch_registers (regno); | |
625 | return; | |
626 | } | |
627 | ||
628 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
629 | ||
630 | thread = GET_THREAD (inferior_pid); | |
631 | ||
632 | if (thread == 0) | |
633 | error ("sol_thread_fetch_registers: thread == 0"); | |
634 | ||
635 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
636 | if (val != TD_OK) | |
637 | error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s", | |
638 | td_err_string (val)); | |
639 | ||
640 | /* Get the integer regs */ | |
641 | ||
642 | val = p_td_thr_getgregs (&thandle, gregset); | |
643 | if (val != TD_OK | |
644 | && val != TD_PARTIALREG) | |
645 | error ("sol_thread_fetch_registers: td_thr_getgregs %s", | |
646 | td_err_string (val)); | |
647 | ||
648 | /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp | |
649 | are saved (by a thread context switch). */ | |
650 | ||
651 | /* And, now the fp regs */ | |
652 | ||
653 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
654 | if (val != TD_OK | |
655 | && val != TD_NOFPREGS) | |
656 | error ("sol_thread_fetch_registers: td_thr_getfpregs %s", | |
657 | td_err_string (val)); | |
658 | ||
659 | /* Note that we must call supply_{g fp}regset *after* calling the td routines | |
660 | because the td routines call ps_lget* which affect the values stored in the | |
661 | registers array. */ | |
662 | ||
663 | supply_gregset (gregset); | |
664 | supply_fpregset (&fpregset); | |
665 | ||
666 | #if 0 | |
667 | /* thread_db doesn't seem to handle this right */ | |
668 | val = td_thr_getxregsize (&thandle, &xregsize); | |
669 | if (val != TD_OK && val != TD_NOXREGS) | |
670 | error ("sol_thread_fetch_registers: td_thr_getxregsize %s", | |
671 | td_err_string (val)); | |
672 | ||
673 | if (val == TD_OK) | |
674 | { | |
675 | xregset = alloca (xregsize); | |
676 | val = td_thr_getxregs (&thandle, xregset); | |
677 | if (val != TD_OK) | |
678 | error ("sol_thread_fetch_registers: td_thr_getxregs %s", | |
679 | td_err_string (val)); | |
680 | } | |
681 | #endif | |
682 | } | |
683 | ||
684 | static void | |
685 | sol_thread_store_registers (regno) | |
686 | int regno; | |
687 | { | |
688 | thread_t thread; | |
689 | td_thrhandle_t thandle; | |
690 | td_err_e val; | |
691 | prgregset_t regset; | |
692 | prfpregset_t fpregset; | |
693 | #if 0 | |
694 | int xregsize; | |
695 | caddr_t xregset; | |
696 | #endif | |
697 | ||
698 | if (!is_thread (inferior_pid)) | |
c5aa993b | 699 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
700 | procfs_ops.to_store_registers (regno); |
701 | return; | |
702 | } | |
703 | ||
704 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
705 | ||
706 | thread = GET_THREAD (inferior_pid); | |
707 | ||
708 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
709 | if (val != TD_OK) | |
710 | error ("sol_thread_store_registers: td_ta_map_id2thr %s", | |
711 | td_err_string (val)); | |
712 | ||
713 | if (regno != -1) | |
714 | { /* Not writing all the regs */ | |
715 | /* save new register value */ | |
716 | char old_value[REGISTER_SIZE]; | |
c5aa993b | 717 | memcpy (old_value, ®isters[REGISTER_BYTE (regno)], REGISTER_SIZE); |
c906108c SS |
718 | |
719 | val = p_td_thr_getgregs (&thandle, regset); | |
720 | if (val != TD_OK) | |
721 | error ("sol_thread_store_registers: td_thr_getgregs %s", | |
722 | td_err_string (val)); | |
723 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
724 | if (val != TD_OK) | |
725 | error ("sol_thread_store_registers: td_thr_getfpregs %s", | |
726 | td_err_string (val)); | |
727 | ||
728 | /* restore new register value */ | |
c5aa993b | 729 | memcpy (®isters[REGISTER_BYTE (regno)], old_value, REGISTER_SIZE); |
c906108c SS |
730 | |
731 | #if 0 | |
732 | /* thread_db doesn't seem to handle this right */ | |
733 | val = td_thr_getxregsize (&thandle, &xregsize); | |
734 | if (val != TD_OK && val != TD_NOXREGS) | |
735 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
736 | td_err_string (val)); | |
737 | ||
738 | if (val == TD_OK) | |
739 | { | |
740 | xregset = alloca (xregsize); | |
741 | val = td_thr_getxregs (&thandle, xregset); | |
742 | if (val != TD_OK) | |
743 | error ("sol_thread_store_registers: td_thr_getxregs %s", | |
744 | td_err_string (val)); | |
745 | } | |
746 | #endif | |
747 | } | |
748 | ||
749 | fill_gregset (regset, regno); | |
750 | fill_fpregset (&fpregset, regno); | |
751 | ||
752 | val = p_td_thr_setgregs (&thandle, regset); | |
753 | if (val != TD_OK) | |
754 | error ("sol_thread_store_registers: td_thr_setgregs %s", | |
755 | td_err_string (val)); | |
756 | val = p_td_thr_setfpregs (&thandle, &fpregset); | |
757 | if (val != TD_OK) | |
758 | error ("sol_thread_store_registers: td_thr_setfpregs %s", | |
759 | td_err_string (val)); | |
760 | ||
761 | #if 0 | |
762 | /* thread_db doesn't seem to handle this right */ | |
763 | val = td_thr_getxregsize (&thandle, &xregsize); | |
764 | if (val != TD_OK && val != TD_NOXREGS) | |
765 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
766 | td_err_string (val)); | |
767 | ||
768 | /* Should probably do something about writing the xregs here, but what are | |
769 | they? */ | |
770 | #endif | |
771 | } | |
772 | ||
773 | /* Get ready to modify the registers array. On machines which store | |
774 | individual registers, this doesn't need to do anything. On machines | |
775 | which store all the registers in one fell swoop, this makes sure | |
776 | that registers contains all the registers from the program being | |
777 | debugged. */ | |
778 | ||
779 | static void | |
780 | sol_thread_prepare_to_store () | |
781 | { | |
782 | procfs_ops.to_prepare_to_store (); | |
783 | } | |
784 | ||
785 | static int | |
786 | sol_thread_xfer_memory (memaddr, myaddr, len, dowrite, target) | |
787 | CORE_ADDR memaddr; | |
788 | char *myaddr; | |
789 | int len; | |
790 | int dowrite; | |
c5aa993b | 791 | struct target_ops *target; /* ignored */ |
c906108c SS |
792 | { |
793 | int retval; | |
794 | struct cleanup *old_chain; | |
795 | ||
796 | old_chain = save_inferior_pid (); | |
797 | ||
c5aa993b | 798 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
799 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
800 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
801 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
802 | ||
803 | if (target_has_execution) | |
804 | retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target); | |
805 | else | |
806 | retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len, | |
807 | dowrite, target); | |
808 | ||
809 | do_cleanups (old_chain); | |
810 | ||
811 | return retval; | |
812 | } | |
813 | ||
814 | /* Print status information about what we're accessing. */ | |
815 | ||
816 | static void | |
817 | sol_thread_files_info (ignore) | |
818 | struct target_ops *ignore; | |
819 | { | |
820 | procfs_ops.to_files_info (ignore); | |
821 | } | |
822 | ||
823 | static void | |
824 | sol_thread_kill_inferior () | |
825 | { | |
826 | procfs_ops.to_kill (); | |
827 | } | |
828 | ||
829 | static void | |
830 | sol_thread_notice_signals (pid) | |
831 | int pid; | |
832 | { | |
833 | procfs_ops.to_notice_signals (PIDGET (pid)); | |
834 | } | |
835 | ||
836 | /* Fork an inferior process, and start debugging it with /proc. */ | |
837 | ||
838 | static void | |
839 | sol_thread_create_inferior (exec_file, allargs, env) | |
840 | char *exec_file; | |
841 | char *allargs; | |
842 | char **env; | |
843 | { | |
844 | procfs_ops.to_create_inferior (exec_file, allargs, env); | |
845 | ||
846 | if (sol_thread_active && inferior_pid != 0) | |
847 | { | |
c5aa993b | 848 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
849 | |
850 | push_target (&sol_thread_ops); | |
851 | ||
852 | inferior_pid = lwp_to_thread (inferior_pid); | |
853 | if (inferior_pid == -1) | |
854 | inferior_pid = main_ph.pid; | |
855 | ||
e245aa6b MS |
856 | if (!in_thread_list (inferior_pid)) |
857 | add_thread (inferior_pid); | |
c906108c SS |
858 | } |
859 | } | |
860 | ||
861 | /* This routine is called whenever a new symbol table is read in, or when all | |
862 | symbol tables are removed. libthread_db can only be initialized when it | |
863 | finds the right variables in libthread.so. Since it's a shared library, | |
864 | those variables don't show up until the library gets mapped and the symbol | |
865 | table is read in. */ | |
866 | ||
11cf8741 JM |
867 | /* This new_objfile event is now managed by a chained function pointer. |
868 | * It is the callee's responsability to call the next client on the chain. | |
869 | */ | |
870 | ||
871 | /* Saved pointer to previous owner of the new_objfile event. */ | |
872 | static void (*target_new_objfile_chain) PARAMS ((struct objfile *)); | |
873 | ||
c906108c SS |
874 | void |
875 | sol_thread_new_objfile (objfile) | |
876 | struct objfile *objfile; | |
877 | { | |
878 | td_err_e val; | |
879 | ||
880 | if (!objfile) | |
881 | { | |
882 | sol_thread_active = 0; | |
11cf8741 | 883 | goto quit; |
c906108c SS |
884 | } |
885 | ||
886 | /* don't do anything if init failed to resolve the libthread_db library */ | |
887 | if (!procfs_suppress_run) | |
11cf8741 | 888 | goto quit; |
c906108c SS |
889 | |
890 | /* Now, initialize the thread debugging library. This needs to be done after | |
891 | the shared libraries are located because it needs information from the | |
892 | user's thread library. */ | |
893 | ||
894 | val = p_td_init (); | |
895 | if (val != TD_OK) | |
11cf8741 JM |
896 | { |
897 | warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val)); | |
898 | goto quit; | |
899 | } | |
c906108c SS |
900 | |
901 | val = p_td_ta_new (&main_ph, &main_ta); | |
902 | if (val == TD_NOLIBTHREAD) | |
11cf8741 | 903 | goto quit; |
c906108c | 904 | else if (val != TD_OK) |
11cf8741 JM |
905 | { |
906 | warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val)); | |
907 | goto quit; | |
908 | } | |
c906108c SS |
909 | |
910 | sol_thread_active = 1; | |
11cf8741 JM |
911 | quit: |
912 | /* Call predecessor on chain, if any. */ | |
913 | if (target_new_objfile_chain) | |
914 | target_new_objfile_chain (objfile); | |
c906108c SS |
915 | } |
916 | ||
917 | /* Clean up after the inferior dies. */ | |
918 | ||
919 | static void | |
920 | sol_thread_mourn_inferior () | |
921 | { | |
922 | unpush_target (&sol_thread_ops); | |
923 | procfs_ops.to_mourn_inferior (); | |
924 | } | |
925 | ||
926 | /* Mark our target-struct as eligible for stray "run" and "attach" commands. */ | |
927 | ||
928 | static int | |
929 | sol_thread_can_run () | |
930 | { | |
931 | return procfs_suppress_run; | |
932 | } | |
933 | ||
934 | /* | |
935 | ||
c5aa993b | 936 | LOCAL FUNCTION |
c906108c | 937 | |
c5aa993b | 938 | sol_thread_alive - test thread for "aliveness" |
c906108c | 939 | |
c5aa993b | 940 | SYNOPSIS |
c906108c | 941 | |
c5aa993b | 942 | static bool sol_thread_alive (int pid); |
c906108c | 943 | |
c5aa993b | 944 | DESCRIPTION |
c906108c | 945 | |
c5aa993b | 946 | returns true if thread still active in inferior. |
c906108c SS |
947 | |
948 | */ | |
949 | ||
950 | static int | |
951 | sol_thread_alive (pid) | |
952 | int pid; | |
953 | { | |
954 | if (is_thread (pid)) /* non-kernel thread */ | |
955 | { | |
956 | td_err_e val; | |
957 | td_thrhandle_t th; | |
958 | ||
959 | pid = GET_THREAD (pid); | |
960 | if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK) | |
c5aa993b | 961 | return 0; /* thread not found */ |
c906108c | 962 | if ((val = p_td_thr_validate (&th)) != TD_OK) |
c5aa993b JM |
963 | return 0; /* thread not valid */ |
964 | return 1; /* known thread: return true */ | |
c906108c | 965 | } |
c5aa993b JM |
966 | else |
967 | /* kernel thread (LWP): let procfs test it */ | |
c906108c SS |
968 | { |
969 | if (target_has_execution) | |
970 | return procfs_ops.to_thread_alive (pid); | |
971 | else | |
972 | return orig_core_ops.to_thread_alive (pid); | |
973 | } | |
974 | } | |
975 | ||
976 | static void | |
977 | sol_thread_stop () | |
978 | { | |
979 | procfs_ops.to_stop (); | |
980 | } | |
981 | \f | |
982 | /* These routines implement the lower half of the thread_db interface. Ie: the | |
983 | ps_* routines. */ | |
984 | ||
985 | /* Various versions of <proc_service.h> have slightly | |
986 | different function prototypes. In particular, we have | |
987 | ||
c5aa993b JM |
988 | NEWER OLDER |
989 | struct ps_prochandle * const struct ps_prochandle * | |
990 | void* char* | |
991 | const void* char* | |
992 | int size_t | |
c906108c SS |
993 | |
994 | Which one you have depends on solaris version and what | |
995 | patches you've applied. On the theory that there are | |
996 | only two major variants, we have configure check the | |
997 | prototype of ps_pdwrite (), and use that info to make | |
998 | appropriate typedefs here. */ | |
999 | ||
1000 | #ifdef PROC_SERVICE_IS_OLD | |
c5aa993b JM |
1001 | typedef const struct ps_prochandle *gdb_ps_prochandle_t; |
1002 | typedef char *gdb_ps_read_buf_t; | |
1003 | typedef char *gdb_ps_write_buf_t; | |
c906108c | 1004 | typedef int gdb_ps_size_t; |
291dcb3e | 1005 | typedef paddr_t gdb_ps_addr_t; |
c906108c | 1006 | #else |
c5aa993b JM |
1007 | typedef struct ps_prochandle *gdb_ps_prochandle_t; |
1008 | typedef void *gdb_ps_read_buf_t; | |
1009 | typedef const void *gdb_ps_write_buf_t; | |
c906108c | 1010 | typedef size_t gdb_ps_size_t; |
291dcb3e | 1011 | typedef psaddr_t gdb_ps_addr_t; |
c906108c SS |
1012 | #endif |
1013 | ||
1014 | ||
1015 | /* The next four routines are called by thread_db to tell us to stop and stop | |
1016 | a particular process or lwp. Since GDB ensures that these are all stopped | |
1017 | by the time we call anything in thread_db, these routines need to do | |
1018 | nothing. */ | |
1019 | ||
d4f3574e SS |
1020 | /* Process stop */ |
1021 | ||
c906108c SS |
1022 | ps_err_e |
1023 | ps_pstop (gdb_ps_prochandle_t ph) | |
1024 | { | |
1025 | return PS_OK; | |
1026 | } | |
1027 | ||
d4f3574e SS |
1028 | /* Process continue */ |
1029 | ||
c906108c SS |
1030 | ps_err_e |
1031 | ps_pcontinue (gdb_ps_prochandle_t ph) | |
1032 | { | |
1033 | return PS_OK; | |
1034 | } | |
1035 | ||
d4f3574e SS |
1036 | /* LWP stop */ |
1037 | ||
c906108c SS |
1038 | ps_err_e |
1039 | ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1040 | { | |
1041 | return PS_OK; | |
1042 | } | |
1043 | ||
d4f3574e SS |
1044 | /* LWP continue */ |
1045 | ||
c906108c SS |
1046 | ps_err_e |
1047 | ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1048 | { | |
1049 | return PS_OK; | |
1050 | } | |
1051 | ||
d4f3574e SS |
1052 | /* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */ |
1053 | ||
c906108c SS |
1054 | ps_err_e |
1055 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name, | |
291dcb3e | 1056 | const char *ld_symbol_name, gdb_ps_addr_t * ld_symbol_addr) |
c906108c SS |
1057 | { |
1058 | struct minimal_symbol *ms; | |
1059 | ||
1060 | ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL); | |
1061 | ||
1062 | if (!ms) | |
1063 | return PS_NOSYM; | |
1064 | ||
1065 | *ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms); | |
1066 | ||
1067 | return PS_OK; | |
1068 | } | |
1069 | ||
1070 | /* Common routine for reading and writing memory. */ | |
1071 | ||
1072 | static ps_err_e | |
291dcb3e | 1073 | rw_common (int dowrite, const struct ps_prochandle *ph, gdb_ps_addr_t addr, |
c906108c SS |
1074 | char *buf, int size) |
1075 | { | |
1076 | struct cleanup *old_chain; | |
1077 | ||
1078 | old_chain = save_inferior_pid (); | |
1079 | ||
c5aa993b | 1080 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
1081 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
1082 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
1083 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
1084 | ||
1085 | while (size > 0) | |
1086 | { | |
1087 | int cc; | |
1088 | ||
1089 | if (target_has_execution) | |
1090 | cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops); | |
1091 | else | |
1092 | cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops); | |
1093 | ||
1094 | if (cc < 0) | |
1095 | { | |
1096 | if (dowrite == 0) | |
1097 | print_sys_errmsg ("rw_common (): read", errno); | |
1098 | else | |
1099 | print_sys_errmsg ("rw_common (): write", errno); | |
1100 | ||
1101 | do_cleanups (old_chain); | |
1102 | ||
1103 | return PS_ERR; | |
1104 | } | |
1105 | size -= cc; | |
1106 | buf += cc; | |
1107 | } | |
1108 | ||
1109 | do_cleanups (old_chain); | |
1110 | ||
1111 | return PS_OK; | |
1112 | } | |
1113 | ||
d4f3574e SS |
1114 | /* Copies SIZE bytes from target process .data segment to debugger memory. */ |
1115 | ||
c906108c | 1116 | ps_err_e |
291dcb3e | 1117 | ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1118 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
1119 | { | |
1120 | return rw_common (0, ph, addr, buf, size); | |
1121 | } | |
1122 | ||
d4f3574e SS |
1123 | /* Copies SIZE bytes from debugger memory .data segment to target process. */ |
1124 | ||
c906108c | 1125 | ps_err_e |
291dcb3e | 1126 | ps_pdwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1127 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
1128 | { | |
c5aa993b | 1129 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1130 | } |
1131 | ||
d4f3574e SS |
1132 | /* Copies SIZE bytes from target process .text segment to debugger memory. */ |
1133 | ||
c906108c | 1134 | ps_err_e |
291dcb3e | 1135 | ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1136 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
1137 | { | |
1138 | return rw_common (0, ph, addr, buf, size); | |
1139 | } | |
1140 | ||
d4f3574e SS |
1141 | /* Copies SIZE bytes from debugger memory .text segment to target process. */ |
1142 | ||
c906108c | 1143 | ps_err_e |
291dcb3e | 1144 | ps_ptwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1145 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
1146 | { | |
c5aa993b | 1147 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1148 | } |
1149 | ||
d4f3574e | 1150 | /* Get integer regs for LWP */ |
c906108c SS |
1151 | |
1152 | ps_err_e | |
1153 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1154 | prgregset_t gregset) | |
1155 | { | |
1156 | struct cleanup *old_chain; | |
1157 | ||
1158 | old_chain = save_inferior_pid (); | |
1159 | ||
1160 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1161 | |
c906108c SS |
1162 | if (target_has_execution) |
1163 | procfs_ops.to_fetch_registers (-1); | |
1164 | else | |
1165 | orig_core_ops.to_fetch_registers (-1); | |
1166 | fill_gregset (gregset, -1); | |
1167 | ||
1168 | do_cleanups (old_chain); | |
1169 | ||
1170 | return PS_OK; | |
1171 | } | |
1172 | ||
d4f3574e | 1173 | /* Set integer regs for LWP */ |
c906108c SS |
1174 | |
1175 | ps_err_e | |
1176 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1177 | const prgregset_t gregset) | |
1178 | { | |
1179 | struct cleanup *old_chain; | |
1180 | ||
1181 | old_chain = save_inferior_pid (); | |
1182 | ||
1183 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1184 | |
c906108c SS |
1185 | supply_gregset (gregset); |
1186 | if (target_has_execution) | |
1187 | procfs_ops.to_store_registers (-1); | |
1188 | else | |
1189 | orig_core_ops.to_store_registers (-1); | |
1190 | ||
1191 | do_cleanups (old_chain); | |
1192 | ||
1193 | return PS_OK; | |
1194 | } | |
1195 | ||
d4f3574e SS |
1196 | /* Log a message (sends to gdb_stderr). */ |
1197 | ||
c906108c | 1198 | void |
c5aa993b | 1199 | ps_plog (const char *fmt,...) |
c906108c SS |
1200 | { |
1201 | va_list args; | |
1202 | ||
1203 | va_start (args, fmt); | |
1204 | ||
1205 | vfprintf_filtered (gdb_stderr, fmt, args); | |
1206 | } | |
1207 | ||
1208 | /* Get size of extra register set. Currently a noop. */ | |
1209 | ||
1210 | ps_err_e | |
1211 | ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize) | |
1212 | { | |
1213 | #if 0 | |
1214 | int lwp_fd; | |
1215 | int regsize; | |
1216 | ps_err_e val; | |
1217 | ||
1218 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1219 | if (val != PS_OK) | |
1220 | return val; | |
1221 | ||
1222 | if (ioctl (lwp_fd, PIOCGXREGSIZE, ®size)) | |
1223 | { | |
1224 | if (errno == EINVAL) | |
1225 | return PS_NOFREGS; /* XXX Wrong code, but this is the closest | |
1226 | thing in proc_service.h */ | |
1227 | ||
1228 | print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno); | |
1229 | return PS_ERR; | |
1230 | } | |
1231 | #endif | |
1232 | ||
1233 | return PS_OK; | |
1234 | } | |
1235 | ||
1236 | /* Get extra register set. Currently a noop. */ | |
1237 | ||
1238 | ps_err_e | |
1239 | ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1240 | { | |
1241 | #if 0 | |
1242 | int lwp_fd; | |
1243 | ps_err_e val; | |
1244 | ||
1245 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1246 | if (val != PS_OK) | |
1247 | return val; | |
1248 | ||
1249 | if (ioctl (lwp_fd, PIOCGXREG, xregset)) | |
1250 | { | |
1251 | print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno); | |
1252 | return PS_ERR; | |
1253 | } | |
1254 | #endif | |
1255 | ||
1256 | return PS_OK; | |
1257 | } | |
1258 | ||
1259 | /* Set extra register set. Currently a noop. */ | |
1260 | ||
1261 | ps_err_e | |
1262 | ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1263 | { | |
1264 | #if 0 | |
1265 | int lwp_fd; | |
1266 | ps_err_e val; | |
1267 | ||
1268 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1269 | if (val != PS_OK) | |
1270 | return val; | |
1271 | ||
1272 | if (ioctl (lwp_fd, PIOCSXREG, xregset)) | |
1273 | { | |
1274 | print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno); | |
1275 | return PS_ERR; | |
1276 | } | |
1277 | #endif | |
1278 | ||
1279 | return PS_OK; | |
1280 | } | |
1281 | ||
d4f3574e | 1282 | /* Get floating-point regs for LWP */ |
c906108c SS |
1283 | |
1284 | ps_err_e | |
1285 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1286 | prfpregset_t * fpregset) |
c906108c SS |
1287 | { |
1288 | struct cleanup *old_chain; | |
1289 | ||
1290 | old_chain = save_inferior_pid (); | |
1291 | ||
1292 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
1293 | ||
1294 | if (target_has_execution) | |
1295 | procfs_ops.to_fetch_registers (-1); | |
1296 | else | |
1297 | orig_core_ops.to_fetch_registers (-1); | |
1298 | fill_fpregset (fpregset, -1); | |
1299 | ||
1300 | do_cleanups (old_chain); | |
1301 | ||
1302 | return PS_OK; | |
1303 | } | |
1304 | ||
d4f3574e | 1305 | /* Set floating-point regs for LWP */ |
c906108c SS |
1306 | |
1307 | ps_err_e | |
1308 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1309 | const prfpregset_t * fpregset) |
c906108c SS |
1310 | { |
1311 | struct cleanup *old_chain; | |
1312 | ||
1313 | old_chain = save_inferior_pid (); | |
1314 | ||
1315 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1316 | |
c906108c SS |
1317 | supply_fpregset (fpregset); |
1318 | if (target_has_execution) | |
1319 | procfs_ops.to_store_registers (-1); | |
1320 | else | |
1321 | orig_core_ops.to_store_registers (-1); | |
1322 | ||
1323 | do_cleanups (old_chain); | |
1324 | ||
1325 | return PS_OK; | |
1326 | } | |
1327 | ||
1328 | #ifdef TM_I386SOL2_H | |
1329 | ||
d4f3574e SS |
1330 | /* Reads the local descriptor table of a LWP. */ |
1331 | ||
c906108c SS |
1332 | ps_err_e |
1333 | ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1334 | struct ssd *pldt) | |
1335 | { | |
05e28a7b AC |
1336 | /* NOTE: only used on Solaris, therefore OK to refer to procfs.c */ |
1337 | extern struct ssd *procfs_find_LDT_entry (int); | |
1338 | struct ssd *ret; | |
c906108c | 1339 | |
2f09097b ND |
1340 | /* FIXME: can't I get the process ID from the prochandle or something? |
1341 | */ | |
1342 | ||
1343 | if (inferior_pid <= 0 || lwpid <= 0) | |
1344 | return PS_BADLID; | |
1345 | ||
05e28a7b AC |
1346 | ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_pid))); |
1347 | if (ret) | |
c906108c | 1348 | { |
05e28a7b AC |
1349 | memcpy (pldt, ret, sizeof (struct ssd)); |
1350 | return PS_OK; | |
c906108c | 1351 | } |
05e28a7b | 1352 | else /* LDT not found. */ |
c906108c | 1353 | return PS_ERR; |
c5aa993b | 1354 | } |
c906108c SS |
1355 | #endif /* TM_I386SOL2_H */ |
1356 | \f | |
1357 | /* Convert a pid to printable form. */ | |
1358 | ||
1359 | char * | |
1360 | solaris_pid_to_str (pid) | |
1361 | int pid; | |
1362 | { | |
1363 | static char buf[100]; | |
1364 | ||
1365 | /* in case init failed to resolve the libthread_db library */ | |
1366 | if (!procfs_suppress_run) | |
1367 | return procfs_pid_to_str (pid); | |
1368 | ||
1369 | if (is_thread (pid)) | |
1370 | { | |
1371 | int lwp; | |
1372 | ||
1373 | lwp = thread_to_lwp (pid, -2); | |
1374 | ||
1375 | if (lwp == -1) | |
1376 | sprintf (buf, "Thread %d (defunct)", GET_THREAD (pid)); | |
1377 | else if (lwp != -2) | |
1378 | sprintf (buf, "Thread %d (LWP %d)", GET_THREAD (pid), GET_LWP (lwp)); | |
1379 | else | |
1380 | sprintf (buf, "Thread %d ", GET_THREAD (pid)); | |
1381 | } | |
1382 | else if (GET_LWP (pid) != 0) | |
1383 | sprintf (buf, "LWP %d ", GET_LWP (pid)); | |
1384 | else | |
1385 | sprintf (buf, "process %d ", PIDGET (pid)); | |
1386 | ||
1387 | return buf; | |
1388 | } | |
1389 | \f | |
1390 | ||
1391 | /* Worker bee for find_new_threads | |
1392 | Callback function that gets called once per USER thread (i.e., not | |
1393 | kernel) thread. */ | |
1394 | ||
1395 | static int | |
c5aa993b | 1396 | sol_find_new_threads_callback (th, ignored) |
c906108c SS |
1397 | const td_thrhandle_t *th; |
1398 | void *ignored; | |
1399 | { | |
1400 | td_err_e retval; | |
1401 | td_thrinfo_t ti; | |
1402 | int pid; | |
1403 | ||
c5aa993b | 1404 | if ((retval = p_td_thr_get_info (th, &ti)) != TD_OK) |
c906108c SS |
1405 | { |
1406 | return -1; | |
1407 | } | |
c5aa993b JM |
1408 | pid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_pid)); |
1409 | if (!in_thread_list (pid)) | |
1410 | add_thread (pid); | |
c906108c SS |
1411 | |
1412 | return 0; | |
1413 | } | |
1414 | ||
d4f3574e | 1415 | static void |
b83266a0 | 1416 | sol_find_new_threads () |
c906108c SS |
1417 | { |
1418 | /* don't do anything if init failed to resolve the libthread_db library */ | |
1419 | if (!procfs_suppress_run) | |
1420 | return; | |
1421 | ||
1422 | if (inferior_pid == -1) | |
1423 | { | |
c5aa993b | 1424 | printf_filtered ("No process.\n"); |
c906108c SS |
1425 | return; |
1426 | } | |
c3f6f71d | 1427 | procfs_find_new_threads (); /* first find new kernel threads. */ |
c5aa993b | 1428 | p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0, |
c906108c SS |
1429 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1430 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1431 | } | |
1432 | ||
1433 | static void | |
1434 | sol_core_open (filename, from_tty) | |
1435 | char *filename; | |
1436 | int from_tty; | |
1437 | { | |
1438 | orig_core_ops.to_open (filename, from_tty); | |
1439 | } | |
1440 | ||
1441 | static void | |
1442 | sol_core_close (quitting) | |
1443 | int quitting; | |
1444 | { | |
1445 | orig_core_ops.to_close (quitting); | |
1446 | } | |
1447 | ||
1448 | static void | |
1449 | sol_core_detach (args, from_tty) | |
1450 | char *args; | |
1451 | int from_tty; | |
1452 | { | |
1453 | unpush_target (&core_ops); | |
1454 | orig_core_ops.to_detach (args, from_tty); | |
1455 | } | |
1456 | ||
1457 | static void | |
1458 | sol_core_files_info (t) | |
1459 | struct target_ops *t; | |
1460 | { | |
1461 | orig_core_ops.to_files_info (t); | |
1462 | } | |
1463 | ||
c906108c SS |
1464 | /* Worker bee for info sol-thread command. This is a callback function that |
1465 | gets called once for each Solaris thread (ie. not kernel thread) in the | |
1466 | inferior. Print anything interesting that we can think of. */ | |
1467 | ||
c5aa993b | 1468 | static int |
c906108c SS |
1469 | info_cb (th, s) |
1470 | const td_thrhandle_t *th; | |
1471 | void *s; | |
1472 | { | |
1473 | td_err_e ret; | |
1474 | td_thrinfo_t ti; | |
c906108c SS |
1475 | |
1476 | if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK) | |
1477 | { | |
c5aa993b JM |
1478 | printf_filtered ("%s thread #%d, lwp %d, ", |
1479 | ti.ti_type == TD_THR_SYSTEM ? "system" : "user ", | |
c906108c | 1480 | ti.ti_tid, ti.ti_lid); |
c5aa993b JM |
1481 | switch (ti.ti_state) |
1482 | { | |
c906108c | 1483 | default: |
c5aa993b JM |
1484 | case TD_THR_UNKNOWN: |
1485 | printf_filtered ("<unknown state>"); | |
1486 | break; | |
1487 | case TD_THR_STOPPED: | |
1488 | printf_filtered ("(stopped)"); | |
1489 | break; | |
1490 | case TD_THR_RUN: | |
1491 | printf_filtered ("(run) "); | |
1492 | break; | |
1493 | case TD_THR_ACTIVE: | |
1494 | printf_filtered ("(active) "); | |
1495 | break; | |
1496 | case TD_THR_ZOMBIE: | |
1497 | printf_filtered ("(zombie) "); | |
1498 | break; | |
1499 | case TD_THR_SLEEP: | |
1500 | printf_filtered ("(asleep) "); | |
1501 | break; | |
1502 | case TD_THR_STOPPED_ASLEEP: | |
1503 | printf_filtered ("(stopped asleep)"); | |
1504 | break; | |
1505 | } | |
c906108c SS |
1506 | /* Print thr_create start function: */ |
1507 | if (ti.ti_startfunc != 0) | |
4ce44c66 JM |
1508 | { |
1509 | struct minimal_symbol *msym; | |
1510 | msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc); | |
1511 | if (msym) | |
1512 | printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym)); | |
1513 | else | |
1514 | printf_filtered (" startfunc: 0x%s\n", paddr (ti.ti_startfunc)); | |
1515 | } | |
c906108c SS |
1516 | |
1517 | /* If thread is asleep, print function that went to sleep: */ | |
1518 | if (ti.ti_state == TD_THR_SLEEP) | |
4ce44c66 JM |
1519 | { |
1520 | struct minimal_symbol *msym; | |
1521 | msym = lookup_minimal_symbol_by_pc (ti.ti_pc); | |
1522 | if (msym) | |
1523 | printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym)); | |
1524 | else | |
1525 | printf_filtered (" - Sleep func: 0x%s\n", paddr (ti.ti_startfunc)); | |
1526 | } | |
c906108c SS |
1527 | |
1528 | /* Wrap up line, if necessary */ | |
1529 | if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0) | |
1530 | printf_filtered ("\n"); /* don't you hate counting newlines? */ | |
1531 | } | |
1532 | else | |
1533 | warning ("info sol-thread: failed to get info for thread."); | |
1534 | ||
c5aa993b | 1535 | return 0; |
c906108c SS |
1536 | } |
1537 | ||
1538 | /* List some state about each Solaris user thread in the inferior. */ | |
1539 | ||
1540 | static void | |
1541 | info_solthreads (args, from_tty) | |
1542 | char *args; | |
1543 | int from_tty; | |
1544 | { | |
c5aa993b | 1545 | p_td_ta_thr_iter (main_ta, info_cb, args, |
c906108c SS |
1546 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1547 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1548 | } | |
c906108c SS |
1549 | |
1550 | static int | |
1551 | ignore (addr, contents) | |
1552 | CORE_ADDR addr; | |
1553 | char *contents; | |
1554 | { | |
1555 | return 0; | |
1556 | } | |
1557 | ||
1558 | ||
1559 | static void | |
1560 | init_sol_thread_ops () | |
1561 | { | |
1562 | sol_thread_ops.to_shortname = "solaris-threads"; | |
1563 | sol_thread_ops.to_longname = "Solaris threads and pthread."; | |
1564 | sol_thread_ops.to_doc = "Solaris threads and pthread support."; | |
1565 | sol_thread_ops.to_open = sol_thread_open; | |
1566 | sol_thread_ops.to_close = 0; | |
1567 | sol_thread_ops.to_attach = sol_thread_attach; | |
1568 | sol_thread_ops.to_detach = sol_thread_detach; | |
1569 | sol_thread_ops.to_resume = sol_thread_resume; | |
1570 | sol_thread_ops.to_wait = sol_thread_wait; | |
1571 | sol_thread_ops.to_fetch_registers = sol_thread_fetch_registers; | |
1572 | sol_thread_ops.to_store_registers = sol_thread_store_registers; | |
1573 | sol_thread_ops.to_prepare_to_store = sol_thread_prepare_to_store; | |
1574 | sol_thread_ops.to_xfer_memory = sol_thread_xfer_memory; | |
1575 | sol_thread_ops.to_files_info = sol_thread_files_info; | |
1576 | sol_thread_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1577 | sol_thread_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1578 | sol_thread_ops.to_terminal_init = terminal_init_inferior; | |
1579 | sol_thread_ops.to_terminal_inferior = terminal_inferior; | |
1580 | sol_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1581 | sol_thread_ops.to_terminal_ours = terminal_ours; | |
1582 | sol_thread_ops.to_terminal_info = child_terminal_info; | |
1583 | sol_thread_ops.to_kill = sol_thread_kill_inferior; | |
1584 | sol_thread_ops.to_load = 0; | |
1585 | sol_thread_ops.to_lookup_symbol = 0; | |
1586 | sol_thread_ops.to_create_inferior = sol_thread_create_inferior; | |
1587 | sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior; | |
1588 | sol_thread_ops.to_can_run = sol_thread_can_run; | |
1589 | sol_thread_ops.to_notice_signals = sol_thread_notice_signals; | |
1590 | sol_thread_ops.to_thread_alive = sol_thread_alive; | |
ed9a39eb | 1591 | sol_thread_ops.to_pid_to_str = solaris_pid_to_str; |
b83266a0 | 1592 | sol_thread_ops.to_find_new_threads = sol_find_new_threads; |
c906108c SS |
1593 | sol_thread_ops.to_stop = sol_thread_stop; |
1594 | sol_thread_ops.to_stratum = process_stratum; | |
1595 | sol_thread_ops.to_has_all_memory = 1; | |
1596 | sol_thread_ops.to_has_memory = 1; | |
1597 | sol_thread_ops.to_has_stack = 1; | |
1598 | sol_thread_ops.to_has_registers = 1; | |
1599 | sol_thread_ops.to_has_execution = 1; | |
1600 | sol_thread_ops.to_has_thread_control = tc_none; | |
1601 | sol_thread_ops.to_sections = 0; | |
1602 | sol_thread_ops.to_sections_end = 0; | |
1603 | sol_thread_ops.to_magic = OPS_MAGIC; | |
1604 | } | |
1605 | ||
1606 | ||
1607 | static void | |
1608 | init_sol_core_ops () | |
1609 | { | |
c5aa993b JM |
1610 | sol_core_ops.to_shortname = "solaris-core"; |
1611 | sol_core_ops.to_longname = "Solaris core threads and pthread."; | |
1612 | sol_core_ops.to_doc = "Solaris threads and pthread support for core files."; | |
1613 | sol_core_ops.to_open = sol_core_open; | |
1614 | sol_core_ops.to_close = sol_core_close; | |
1615 | sol_core_ops.to_attach = sol_thread_attach; | |
1616 | sol_core_ops.to_detach = sol_core_detach; | |
c906108c | 1617 | /* sol_core_ops.to_resume = 0; */ |
c5aa993b JM |
1618 | /* sol_core_ops.to_wait = 0; */ |
1619 | sol_core_ops.to_fetch_registers = sol_thread_fetch_registers; | |
c906108c SS |
1620 | /* sol_core_ops.to_store_registers = 0; */ |
1621 | /* sol_core_ops.to_prepare_to_store = 0; */ | |
c5aa993b JM |
1622 | sol_core_ops.to_xfer_memory = sol_thread_xfer_memory; |
1623 | sol_core_ops.to_files_info = sol_core_files_info; | |
1624 | sol_core_ops.to_insert_breakpoint = ignore; | |
1625 | sol_core_ops.to_remove_breakpoint = ignore; | |
c906108c SS |
1626 | /* sol_core_ops.to_terminal_init = 0; */ |
1627 | /* sol_core_ops.to_terminal_inferior = 0; */ | |
1628 | /* sol_core_ops.to_terminal_ours_for_output = 0; */ | |
1629 | /* sol_core_ops.to_terminal_ours = 0; */ | |
1630 | /* sol_core_ops.to_terminal_info = 0; */ | |
1631 | /* sol_core_ops.to_kill = 0; */ | |
1632 | /* sol_core_ops.to_load = 0; */ | |
1633 | /* sol_core_ops.to_lookup_symbol = 0; */ | |
c5aa993b JM |
1634 | sol_core_ops.to_create_inferior = sol_thread_create_inferior; |
1635 | sol_core_ops.to_stratum = core_stratum; | |
1636 | sol_core_ops.to_has_all_memory = 0; | |
1637 | sol_core_ops.to_has_memory = 1; | |
1638 | sol_core_ops.to_has_stack = 1; | |
1639 | sol_core_ops.to_has_registers = 1; | |
1640 | sol_core_ops.to_has_execution = 0; | |
1641 | sol_core_ops.to_has_thread_control = tc_none; | |
db348f27 | 1642 | sol_core_ops.to_thread_alive = sol_thread_alive; |
ed9a39eb | 1643 | sol_core_ops.to_pid_to_str = solaris_pid_to_str; |
db348f27 ND |
1644 | /* On Solaris/x86, when debugging a threaded core file from process <n>, |
1645 | the following causes "info threads" to produce "procfs: couldn't find pid | |
1646 | <n> in procinfo list" where <n> is the pid of the process that produced | |
1647 | the core file. Disable it for now. */ | |
1648 | /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */ | |
c5aa993b JM |
1649 | sol_core_ops.to_sections = 0; |
1650 | sol_core_ops.to_sections_end = 0; | |
1651 | sol_core_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1652 | } |
1653 | ||
1654 | /* we suppress the call to add_target of core_ops in corelow because | |
1655 | if there are two targets in the stratum core_stratum, find_core_target | |
1656 | won't know which one to return. see corelow.c for an additonal | |
1657 | comment on coreops_suppress_target. */ | |
1658 | int coreops_suppress_target = 1; | |
1659 | ||
1660 | void | |
1661 | _initialize_sol_thread () | |
1662 | { | |
1663 | void *dlhandle; | |
1664 | ||
1665 | init_sol_thread_ops (); | |
1666 | init_sol_core_ops (); | |
1667 | ||
1668 | dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW); | |
1669 | if (!dlhandle) | |
1670 | goto die; | |
1671 | ||
1672 | #define resolve(X) \ | |
1673 | if (!(p_##X = dlsym (dlhandle, #X))) \ | |
1674 | goto die; | |
1675 | ||
1676 | resolve (td_log); | |
1677 | resolve (td_ta_new); | |
1678 | resolve (td_ta_delete); | |
1679 | resolve (td_init); | |
1680 | resolve (td_ta_get_ph); | |
1681 | resolve (td_ta_get_nthreads); | |
1682 | resolve (td_ta_tsd_iter); | |
1683 | resolve (td_ta_thr_iter); | |
1684 | resolve (td_thr_validate); | |
1685 | resolve (td_thr_tsd); | |
1686 | resolve (td_thr_get_info); | |
1687 | resolve (td_thr_getfpregs); | |
1688 | resolve (td_thr_getxregsize); | |
1689 | resolve (td_thr_getxregs); | |
1690 | resolve (td_thr_sigsetmask); | |
1691 | resolve (td_thr_setprio); | |
1692 | resolve (td_thr_setsigpending); | |
1693 | resolve (td_thr_setfpregs); | |
1694 | resolve (td_thr_setxregs); | |
1695 | resolve (td_ta_map_id2thr); | |
1696 | resolve (td_ta_map_lwp2thr); | |
1697 | resolve (td_thr_getgregs); | |
1698 | resolve (td_thr_setgregs); | |
1699 | ||
1700 | add_target (&sol_thread_ops); | |
1701 | ||
1702 | procfs_suppress_run = 1; | |
1703 | ||
c5aa993b JM |
1704 | add_cmd ("sol-threads", class_maintenance, info_solthreads, |
1705 | "Show info on Solaris user threads.\n", &maintenanceinfolist); | |
c906108c | 1706 | |
c5aa993b JM |
1707 | memcpy (&orig_core_ops, &core_ops, sizeof (struct target_ops)); |
1708 | memcpy (&core_ops, &sol_core_ops, sizeof (struct target_ops)); | |
c906108c SS |
1709 | add_target (&core_ops); |
1710 | ||
11cf8741 JM |
1711 | /* Hook into new_objfile notification. */ |
1712 | target_new_objfile_chain = target_new_objfile_hook; | |
1713 | target_new_objfile_hook = sol_thread_new_objfile; | |
c906108c SS |
1714 | return; |
1715 | ||
c5aa993b | 1716 | die: |
c906108c SS |
1717 | |
1718 | fprintf_unfiltered (gdb_stderr, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ()); | |
1719 | ||
1720 | if (dlhandle) | |
1721 | dlclose (dlhandle); | |
1722 | ||
1723 | /* allow the user to debug non-threaded core files */ | |
c5aa993b | 1724 | add_target (&core_ops); |
c906108c SS |
1725 | |
1726 | return; | |
1727 | } |