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c906108c | 1 | /* Low level interface for debugging Solaris threads for GDB, the GNU debugger. |
23e04971 | 2 | Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc. |
c906108c | 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" | |
23e04971 | 60 | #include "gdbcore.h" |
c906108c | 61 | |
c5aa993b JM |
62 | extern struct target_ops sol_thread_ops; /* Forward declaration */ |
63 | extern struct target_ops sol_core_ops; /* Forward declaration */ | |
c906108c SS |
64 | |
65 | /* place to store core_ops before we overwrite it */ | |
66 | static struct target_ops orig_core_ops; | |
67 | ||
68 | struct target_ops sol_thread_ops; | |
69 | struct target_ops sol_core_ops; | |
70 | ||
71 | extern int procfs_suppress_run; | |
c5aa993b JM |
72 | extern struct target_ops procfs_ops; /* target vector for procfs.c */ |
73 | extern struct target_ops core_ops; /* target vector for corelow.c */ | |
a14ed312 | 74 | extern char *procfs_pid_to_str (int pid); |
c906108c | 75 | |
c60c0f5f MS |
76 | /* Prototypes for supply_gregset etc. */ |
77 | #include "gregset.h" | |
c906108c SS |
78 | |
79 | /* This struct is defined by us, but mainly used for the proc_service interface. | |
80 | We don't have much use for it, except as a handy place to get a real pid | |
81 | for memory accesses. */ | |
82 | ||
83 | struct ps_prochandle | |
c5aa993b JM |
84 | { |
85 | pid_t pid; | |
86 | }; | |
c906108c SS |
87 | |
88 | struct string_map | |
c5aa993b JM |
89 | { |
90 | int num; | |
91 | char *str; | |
92 | }; | |
c906108c SS |
93 | |
94 | static struct ps_prochandle main_ph; | |
95 | static td_thragent_t *main_ta; | |
96 | static int sol_thread_active = 0; | |
97 | ||
a14ed312 KB |
98 | static struct cleanup *save_inferior_pid (void); |
99 | static void restore_inferior_pid (void *pid); | |
100 | static char *td_err_string (td_err_e errcode); | |
101 | static char *td_state_string (td_thr_state_e statecode); | |
102 | static int thread_to_lwp (int thread_id, int default_lwp); | |
103 | static void sol_thread_resume (int pid, int step, enum target_signal signo); | |
104 | static int lwp_to_thread (int lwp); | |
105 | static int sol_thread_alive (int pid); | |
106 | static void sol_core_close (int quitting); | |
107 | ||
108 | static void init_sol_thread_ops (void); | |
109 | static void init_sol_core_ops (void); | |
c906108c | 110 | |
d4f3574e SS |
111 | /* Default definitions: These must be defined in tm.h |
112 | if they are to be shared with a process module such as procfs. */ | |
113 | ||
2f09097b ND |
114 | #define THREAD_FLAG 0x80000000 |
115 | #define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0) | |
116 | #define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0) | |
117 | #define GET_LWP(PID) TIDGET (PID) | |
118 | #define GET_THREAD(PID) TIDGET (PID) | |
119 | #define BUILD_LWP(TID, PID) MERGEPID (PID, TID) | |
d4f3574e | 120 | |
2f09097b | 121 | #define BUILD_THREAD(TID, PID) (MERGEPID (PID, TID) | THREAD_FLAG) |
c906108c SS |
122 | |
123 | /* Pointers to routines from lithread_db resolved by dlopen() */ | |
124 | ||
e245aa6b MS |
125 | static void (*p_td_log) (const int on_off); |
126 | static td_err_e (*p_td_ta_new) (const struct ps_prochandle * ph_p, | |
127 | td_thragent_t ** ta_pp); | |
128 | static td_err_e (*p_td_ta_delete) (td_thragent_t * ta_p); | |
129 | static td_err_e (*p_td_init) (void); | |
130 | static td_err_e (*p_td_ta_get_ph) (const td_thragent_t * ta_p, | |
131 | struct ps_prochandle ** ph_pp); | |
132 | static td_err_e (*p_td_ta_get_nthreads) (const td_thragent_t * ta_p, | |
133 | int *nthread_p); | |
134 | static td_err_e (*p_td_ta_tsd_iter) (const td_thragent_t * ta_p, | |
135 | td_key_iter_f * cb, | |
136 | void *cbdata_p); | |
137 | static td_err_e (*p_td_ta_thr_iter) (const td_thragent_t * ta_p, | |
138 | td_thr_iter_f * cb, | |
139 | void *cbdata_p, | |
140 | td_thr_state_e state, | |
141 | int ti_pri, | |
142 | sigset_t * ti_sigmask_p, | |
143 | unsigned ti_user_flags); | |
144 | static td_err_e (*p_td_thr_validate) (const td_thrhandle_t * th_p); | |
145 | static td_err_e (*p_td_thr_tsd) (const td_thrhandle_t * th_p, | |
146 | const thread_key_t key, | |
147 | void **data_pp); | |
148 | static td_err_e (*p_td_thr_get_info) (const td_thrhandle_t * th_p, | |
149 | td_thrinfo_t * ti_p); | |
150 | static td_err_e (*p_td_thr_getfpregs) (const td_thrhandle_t * th_p, | |
151 | prfpregset_t * fpregset); | |
152 | static td_err_e (*p_td_thr_getxregsize) (const td_thrhandle_t * th_p, | |
153 | int *xregsize); | |
154 | static td_err_e (*p_td_thr_getxregs) (const td_thrhandle_t * th_p, | |
155 | const caddr_t xregset); | |
156 | static td_err_e (*p_td_thr_sigsetmask) (const td_thrhandle_t * th_p, | |
157 | const sigset_t ti_sigmask); | |
158 | static td_err_e (*p_td_thr_setprio) (const td_thrhandle_t * th_p, | |
159 | const int ti_pri); | |
160 | static td_err_e (*p_td_thr_setsigpending) (const td_thrhandle_t * th_p, | |
161 | const uchar_t ti_pending_flag, | |
162 | const sigset_t ti_pending); | |
163 | static td_err_e (*p_td_thr_setfpregs) (const td_thrhandle_t * th_p, | |
164 | const prfpregset_t * fpregset); | |
165 | static td_err_e (*p_td_thr_setxregs) (const td_thrhandle_t * th_p, | |
166 | const caddr_t xregset); | |
167 | static td_err_e (*p_td_ta_map_id2thr) (const td_thragent_t * ta_p, | |
168 | thread_t tid, | |
169 | td_thrhandle_t * th_p); | |
170 | static td_err_e (*p_td_ta_map_lwp2thr) (const td_thragent_t * ta_p, | |
171 | lwpid_t lwpid, | |
172 | td_thrhandle_t * th_p); | |
173 | static td_err_e (*p_td_thr_getgregs) (const td_thrhandle_t * th_p, | |
174 | prgregset_t regset); | |
175 | static td_err_e (*p_td_thr_setgregs) (const td_thrhandle_t * th_p, | |
176 | const prgregset_t regset); | |
177 | ||
c906108c SS |
178 | /* |
179 | ||
c5aa993b | 180 | LOCAL FUNCTION |
c906108c | 181 | |
c5aa993b | 182 | td_err_string - Convert a thread_db error code to a string |
c906108c | 183 | |
c5aa993b | 184 | SYNOPSIS |
c906108c | 185 | |
c5aa993b | 186 | char * td_err_string (errcode) |
c906108c | 187 | |
c5aa993b | 188 | DESCRIPTION |
c906108c | 189 | |
c5aa993b JM |
190 | Return the thread_db error string associated with errcode. If errcode |
191 | is unknown, then return a message. | |
c906108c SS |
192 | |
193 | */ | |
194 | ||
195 | static char * | |
fba45db2 | 196 | td_err_string (td_err_e errcode) |
c906108c SS |
197 | { |
198 | static struct string_map | |
c5aa993b JM |
199 | td_err_table[] = |
200 | { | |
201 | {TD_OK, "generic \"call succeeded\""}, | |
202 | {TD_ERR, "generic error."}, | |
203 | {TD_NOTHR, "no thread can be found to satisfy query"}, | |
204 | {TD_NOSV, "no synch. variable can be found to satisfy query"}, | |
205 | {TD_NOLWP, "no lwp can be found to satisfy query"}, | |
206 | {TD_BADPH, "invalid process handle"}, | |
207 | {TD_BADTH, "invalid thread handle"}, | |
208 | {TD_BADSH, "invalid synchronization handle"}, | |
209 | {TD_BADTA, "invalid thread agent"}, | |
210 | {TD_BADKEY, "invalid key"}, | |
211 | {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"}, | |
212 | {TD_NOFPREGS, "FPU register set not available for given thread"}, | |
213 | {TD_NOLIBTHREAD, "application not linked with libthread"}, | |
214 | {TD_NOEVENT, "requested event is not supported"}, | |
215 | {TD_NOCAPAB, "capability not available"}, | |
216 | {TD_DBERR, "Debugger service failed"}, | |
217 | {TD_NOAPLIC, "Operation not applicable to"}, | |
218 | {TD_NOTSD, "No thread specific data for this thread"}, | |
219 | {TD_MALLOC, "Malloc failed"}, | |
8e1a459b | 220 | {TD_PARTIALREG, "Only part of register set was written/read"}, |
c5aa993b JM |
221 | {TD_NOXREGS, "X register set not available for given thread"} |
222 | }; | |
c906108c SS |
223 | const int td_err_size = sizeof td_err_table / sizeof (struct string_map); |
224 | int i; | |
225 | static char buf[50]; | |
226 | ||
227 | for (i = 0; i < td_err_size; i++) | |
228 | if (td_err_table[i].num == errcode) | |
229 | return td_err_table[i].str; | |
c5aa993b | 230 | |
c906108c SS |
231 | sprintf (buf, "Unknown thread_db error code: %d", errcode); |
232 | ||
233 | return buf; | |
234 | } | |
235 | \f | |
236 | /* | |
237 | ||
c5aa993b | 238 | LOCAL FUNCTION |
c906108c | 239 | |
c5aa993b | 240 | td_state_string - Convert a thread_db state code to a string |
c906108c | 241 | |
c5aa993b | 242 | SYNOPSIS |
c906108c | 243 | |
c5aa993b | 244 | char * td_state_string (statecode) |
c906108c | 245 | |
c5aa993b | 246 | DESCRIPTION |
c906108c | 247 | |
c5aa993b JM |
248 | Return the thread_db state string associated with statecode. If |
249 | statecode is unknown, then return a message. | |
c906108c SS |
250 | |
251 | */ | |
252 | ||
253 | static char * | |
fba45db2 | 254 | td_state_string (td_thr_state_e statecode) |
c906108c SS |
255 | { |
256 | static struct string_map | |
c5aa993b JM |
257 | td_thr_state_table[] = |
258 | { | |
259 | {TD_THR_ANY_STATE, "any state"}, | |
260 | {TD_THR_UNKNOWN, "unknown"}, | |
261 | {TD_THR_STOPPED, "stopped"}, | |
262 | {TD_THR_RUN, "run"}, | |
263 | {TD_THR_ACTIVE, "active"}, | |
264 | {TD_THR_ZOMBIE, "zombie"}, | |
265 | {TD_THR_SLEEP, "sleep"}, | |
266 | {TD_THR_STOPPED_ASLEEP, "stopped asleep"} | |
267 | }; | |
c906108c SS |
268 | const int td_thr_state_table_size = sizeof td_thr_state_table / sizeof (struct string_map); |
269 | int i; | |
270 | static char buf[50]; | |
271 | ||
272 | for (i = 0; i < td_thr_state_table_size; i++) | |
273 | if (td_thr_state_table[i].num == statecode) | |
274 | return td_thr_state_table[i].str; | |
c5aa993b | 275 | |
c906108c SS |
276 | sprintf (buf, "Unknown thread_db state code: %d", statecode); |
277 | ||
278 | return buf; | |
279 | } | |
280 | \f | |
281 | /* | |
282 | ||
c5aa993b | 283 | LOCAL FUNCTION |
c906108c | 284 | |
c5aa993b | 285 | thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id. |
c906108c | 286 | |
c5aa993b | 287 | SYNOPSIS |
c906108c | 288 | |
c5aa993b | 289 | int thread_to_lwp (thread_id, default_lwp) |
c906108c | 290 | |
c5aa993b | 291 | DESCRIPTION |
c906108c | 292 | |
c5aa993b JM |
293 | This function converts a Posix or Solaris thread id to a lightweight |
294 | process id. If thread_id is non-existent, that's an error. If it's | |
295 | an inactive thread, then we return default_lwp. | |
c906108c | 296 | |
c5aa993b | 297 | NOTES |
c906108c | 298 | |
c5aa993b | 299 | This function probably shouldn't call error()... |
c906108c SS |
300 | |
301 | */ | |
302 | ||
303 | static int | |
fba45db2 | 304 | thread_to_lwp (int thread_id, int default_lwp) |
c906108c SS |
305 | { |
306 | td_thrinfo_t ti; | |
307 | td_thrhandle_t th; | |
308 | td_err_e val; | |
309 | ||
310 | if (is_lwp (thread_id)) | |
c5aa993b | 311 | return thread_id; /* It's already an LWP id */ |
c906108c SS |
312 | |
313 | /* It's a thread. Convert to lwp */ | |
314 | ||
315 | val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th); | |
316 | if (val == TD_NOTHR) | |
c5aa993b | 317 | return -1; /* thread must have terminated */ |
c906108c SS |
318 | else if (val != TD_OK) |
319 | error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val)); | |
320 | ||
321 | val = p_td_thr_get_info (&th, &ti); | |
322 | if (val == TD_NOTHR) | |
c5aa993b | 323 | return -1; /* thread must have terminated */ |
c906108c SS |
324 | else if (val != TD_OK) |
325 | error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val)); | |
326 | ||
327 | if (ti.ti_state != TD_THR_ACTIVE) | |
328 | { | |
329 | if (default_lwp != -1) | |
330 | return default_lwp; | |
331 | error ("thread_to_lwp: thread state not active: %s", | |
332 | td_state_string (ti.ti_state)); | |
333 | } | |
334 | ||
335 | return BUILD_LWP (ti.ti_lid, PIDGET (thread_id)); | |
336 | } | |
337 | \f | |
338 | /* | |
339 | ||
c5aa993b | 340 | LOCAL FUNCTION |
c906108c | 341 | |
c5aa993b | 342 | lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id. |
c906108c | 343 | |
c5aa993b | 344 | SYNOPSIS |
c906108c | 345 | |
c5aa993b | 346 | int lwp_to_thread (lwp_id) |
c906108c | 347 | |
c5aa993b | 348 | DESCRIPTION |
c906108c | 349 | |
c5aa993b JM |
350 | This function converts a lightweight process id to a Posix or Solaris |
351 | thread id. If thread_id is non-existent, that's an error. | |
c906108c | 352 | |
c5aa993b | 353 | NOTES |
c906108c | 354 | |
c5aa993b | 355 | This function probably shouldn't call error()... |
c906108c SS |
356 | |
357 | */ | |
358 | ||
359 | static int | |
fba45db2 | 360 | lwp_to_thread (int lwp) |
c906108c SS |
361 | { |
362 | td_thrinfo_t ti; | |
363 | td_thrhandle_t th; | |
364 | td_err_e val; | |
365 | ||
366 | if (is_thread (lwp)) | |
367 | return lwp; /* It's already a thread id */ | |
368 | ||
369 | /* It's an lwp. Convert it to a thread id. */ | |
370 | ||
371 | if (!sol_thread_alive (lwp)) | |
372 | return -1; /* defunct lwp */ | |
373 | ||
374 | val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th); | |
375 | if (val == TD_NOTHR) | |
c5aa993b | 376 | return -1; /* thread must have terminated */ |
c906108c SS |
377 | else if (val != TD_OK) |
378 | error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val)); | |
379 | ||
380 | val = p_td_thr_validate (&th); | |
381 | if (val == TD_NOTHR) | |
e245aa6b MS |
382 | return lwp; /* libthread doesn't know about it; |
383 | just return lwp */ | |
c906108c SS |
384 | else if (val != TD_OK) |
385 | error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val)); | |
386 | ||
387 | val = p_td_thr_get_info (&th, &ti); | |
388 | if (val == TD_NOTHR) | |
c5aa993b | 389 | return -1; /* thread must have terminated */ |
c906108c SS |
390 | else if (val != TD_OK) |
391 | error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val)); | |
392 | ||
393 | return BUILD_THREAD (ti.ti_tid, PIDGET (lwp)); | |
394 | } | |
395 | \f | |
396 | /* | |
397 | ||
c5aa993b | 398 | LOCAL FUNCTION |
c906108c | 399 | |
c5aa993b JM |
400 | save_inferior_pid - Save inferior_pid on the cleanup list |
401 | restore_inferior_pid - Restore inferior_pid from the cleanup list | |
c906108c | 402 | |
c5aa993b | 403 | SYNOPSIS |
c906108c | 404 | |
c5aa993b JM |
405 | struct cleanup *save_inferior_pid () |
406 | void restore_inferior_pid (int pid) | |
c906108c | 407 | |
c5aa993b | 408 | DESCRIPTION |
c906108c | 409 | |
c5aa993b JM |
410 | These two functions act in unison to restore inferior_pid in |
411 | case of an error. | |
c906108c | 412 | |
c5aa993b | 413 | NOTES |
c906108c | 414 | |
c5aa993b JM |
415 | inferior_pid is a global variable that needs to be changed by many of |
416 | these routines before calling functions in procfs.c. In order to | |
417 | guarantee that inferior_pid gets restored (in case of errors), you | |
418 | need to call save_inferior_pid before changing it. At the end of the | |
419 | function, you should invoke do_cleanups to restore it. | |
c906108c SS |
420 | |
421 | */ | |
422 | ||
423 | ||
424 | static struct cleanup * | |
fba45db2 | 425 | save_inferior_pid (void) |
c906108c | 426 | { |
c5aa993b | 427 | return make_cleanup (restore_inferior_pid, (void *) inferior_pid); |
c906108c SS |
428 | } |
429 | ||
430 | static void | |
fba45db2 | 431 | restore_inferior_pid (void *pid) |
c906108c | 432 | { |
7a292a7a | 433 | inferior_pid = (int) pid; |
c906108c SS |
434 | } |
435 | \f | |
436 | ||
437 | /* Most target vector functions from here on actually just pass through to | |
438 | procfs.c, as they don't need to do anything specific for threads. */ | |
439 | ||
440 | ||
441 | /* ARGSUSED */ | |
442 | static void | |
fba45db2 | 443 | sol_thread_open (char *arg, int from_tty) |
c906108c SS |
444 | { |
445 | procfs_ops.to_open (arg, from_tty); | |
446 | } | |
447 | ||
448 | /* Attach to process PID, then initialize for debugging it | |
449 | and wait for the trace-trap that results from attaching. */ | |
450 | ||
451 | static void | |
fba45db2 | 452 | sol_thread_attach (char *args, int from_tty) |
c906108c SS |
453 | { |
454 | procfs_ops.to_attach (args, from_tty); | |
23715f29 | 455 | |
71150974 MS |
456 | /* Must get symbols from solibs before libthread_db can run! */ |
457 | SOLIB_ADD ((char *) 0, from_tty, (struct target_ops *) 0); | |
458 | ||
c906108c SS |
459 | if (sol_thread_active) |
460 | { | |
461 | printf_filtered ("sol-thread active.\n"); | |
c5aa993b | 462 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
463 | push_target (&sol_thread_ops); |
464 | inferior_pid = lwp_to_thread (inferior_pid); | |
465 | if (inferior_pid == -1) | |
466 | inferior_pid = main_ph.pid; | |
467 | else | |
468 | add_thread (inferior_pid); | |
469 | } | |
470 | /* XXX - might want to iterate over all the threads and register them. */ | |
471 | } | |
472 | ||
473 | /* Take a program previously attached to and detaches it. | |
474 | The program resumes execution and will no longer stop | |
475 | on signals, etc. We'd better not have left any breakpoints | |
476 | in the program or it'll die when it hits one. For this | |
477 | to work, it may be necessary for the process to have been | |
478 | previously attached. It *might* work if the program was | |
479 | started via the normal ptrace (PTRACE_TRACEME). */ | |
480 | ||
481 | static void | |
fba45db2 | 482 | sol_thread_detach (char *args, int from_tty) |
c906108c | 483 | { |
d4f3574e | 484 | inferior_pid = PIDGET (main_ph.pid); |
c906108c SS |
485 | unpush_target (&sol_thread_ops); |
486 | procfs_ops.to_detach (args, from_tty); | |
487 | } | |
488 | ||
489 | /* Resume execution of process PID. If STEP is nozero, then | |
490 | just single step it. If SIGNAL is nonzero, restart it with that | |
491 | signal activated. We may have to convert pid from a thread-id to an LWP id | |
492 | for procfs. */ | |
493 | ||
494 | static void | |
fba45db2 | 495 | sol_thread_resume (int pid, int step, enum target_signal signo) |
c906108c SS |
496 | { |
497 | struct cleanup *old_chain; | |
498 | ||
499 | old_chain = save_inferior_pid (); | |
500 | ||
501 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
502 | if (inferior_pid == -1) | |
503 | inferior_pid = procfs_first_available (); | |
504 | ||
505 | if (pid != -1) | |
506 | { | |
507 | int save_pid = pid; | |
508 | ||
509 | pid = thread_to_lwp (pid, -2); | |
510 | if (pid == -2) /* Inactive thread */ | |
511 | error ("This version of Solaris can't start inactive threads."); | |
512 | if (info_verbose && pid == -1) | |
c5aa993b | 513 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
514 | GET_THREAD (save_pid)); |
515 | } | |
516 | ||
517 | procfs_ops.to_resume (pid, step, signo); | |
518 | ||
519 | do_cleanups (old_chain); | |
520 | } | |
521 | ||
522 | /* Wait for any threads to stop. We may have to convert PID from a thread id | |
523 | to a LWP id, and vice versa on the way out. */ | |
524 | ||
525 | static int | |
fba45db2 | 526 | sol_thread_wait (int pid, struct target_waitstatus *ourstatus) |
c906108c SS |
527 | { |
528 | int rtnval; | |
529 | int save_pid; | |
530 | struct cleanup *old_chain; | |
531 | ||
532 | save_pid = inferior_pid; | |
533 | old_chain = save_inferior_pid (); | |
534 | ||
535 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
536 | if (inferior_pid == -1) | |
537 | inferior_pid = procfs_first_available (); | |
538 | ||
539 | if (pid != -1) | |
540 | { | |
541 | int save_pid = pid; | |
542 | ||
543 | pid = thread_to_lwp (pid, -2); | |
544 | if (pid == -2) /* Inactive thread */ | |
545 | error ("This version of Solaris can't start inactive threads."); | |
546 | if (info_verbose && pid == -1) | |
c5aa993b | 547 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
548 | GET_THREAD (save_pid)); |
549 | } | |
550 | ||
551 | rtnval = procfs_ops.to_wait (pid, ourstatus); | |
552 | ||
553 | if (ourstatus->kind != TARGET_WAITKIND_EXITED) | |
554 | { | |
555 | /* Map the LWP of interest back to the appropriate thread ID */ | |
556 | rtnval = lwp_to_thread (rtnval); | |
557 | if (rtnval == -1) | |
558 | rtnval = save_pid; | |
559 | ||
560 | /* See if we have a new thread */ | |
561 | if (is_thread (rtnval) | |
562 | && rtnval != save_pid | |
563 | && !in_thread_list (rtnval)) | |
564 | { | |
565 | printf_filtered ("[New %s]\n", target_pid_to_str (rtnval)); | |
566 | add_thread (rtnval); | |
567 | } | |
568 | } | |
569 | ||
570 | /* During process initialization, we may get here without the thread package | |
571 | being initialized, since that can only happen after we've found the shared | |
572 | libs. */ | |
573 | ||
574 | do_cleanups (old_chain); | |
575 | ||
576 | return rtnval; | |
577 | } | |
578 | ||
579 | static void | |
fba45db2 | 580 | sol_thread_fetch_registers (int regno) |
c906108c SS |
581 | { |
582 | thread_t thread; | |
583 | td_thrhandle_t thandle; | |
584 | td_err_e val; | |
585 | prgregset_t gregset; | |
586 | prfpregset_t fpregset; | |
587 | #if 0 | |
588 | int xregsize; | |
589 | caddr_t xregset; | |
590 | #endif | |
591 | ||
592 | if (!is_thread (inferior_pid)) | |
c5aa993b | 593 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
594 | if (target_has_execution) |
595 | procfs_ops.to_fetch_registers (regno); | |
596 | else | |
597 | orig_core_ops.to_fetch_registers (regno); | |
598 | return; | |
599 | } | |
600 | ||
601 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
602 | ||
603 | thread = GET_THREAD (inferior_pid); | |
604 | ||
605 | if (thread == 0) | |
606 | error ("sol_thread_fetch_registers: thread == 0"); | |
607 | ||
608 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
609 | if (val != TD_OK) | |
610 | error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s", | |
611 | td_err_string (val)); | |
612 | ||
613 | /* Get the integer regs */ | |
614 | ||
615 | val = p_td_thr_getgregs (&thandle, gregset); | |
616 | if (val != TD_OK | |
617 | && val != TD_PARTIALREG) | |
618 | error ("sol_thread_fetch_registers: td_thr_getgregs %s", | |
619 | td_err_string (val)); | |
620 | ||
621 | /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp | |
622 | are saved (by a thread context switch). */ | |
623 | ||
624 | /* And, now the fp regs */ | |
625 | ||
626 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
627 | if (val != TD_OK | |
628 | && val != TD_NOFPREGS) | |
629 | error ("sol_thread_fetch_registers: td_thr_getfpregs %s", | |
630 | td_err_string (val)); | |
631 | ||
632 | /* Note that we must call supply_{g fp}regset *after* calling the td routines | |
633 | because the td routines call ps_lget* which affect the values stored in the | |
634 | registers array. */ | |
635 | ||
c60c0f5f MS |
636 | supply_gregset ((gdb_gregset_t *) &gregset); |
637 | supply_fpregset ((gdb_fpregset_t *) &fpregset); | |
c906108c SS |
638 | |
639 | #if 0 | |
640 | /* thread_db doesn't seem to handle this right */ | |
641 | val = td_thr_getxregsize (&thandle, &xregsize); | |
642 | if (val != TD_OK && val != TD_NOXREGS) | |
643 | error ("sol_thread_fetch_registers: td_thr_getxregsize %s", | |
644 | td_err_string (val)); | |
645 | ||
646 | if (val == TD_OK) | |
647 | { | |
648 | xregset = alloca (xregsize); | |
649 | val = td_thr_getxregs (&thandle, xregset); | |
650 | if (val != TD_OK) | |
651 | error ("sol_thread_fetch_registers: td_thr_getxregs %s", | |
652 | td_err_string (val)); | |
653 | } | |
654 | #endif | |
655 | } | |
656 | ||
657 | static void | |
fba45db2 | 658 | sol_thread_store_registers (int regno) |
c906108c SS |
659 | { |
660 | thread_t thread; | |
661 | td_thrhandle_t thandle; | |
662 | td_err_e val; | |
c60c0f5f | 663 | prgregset_t gregset; |
c906108c SS |
664 | prfpregset_t fpregset; |
665 | #if 0 | |
666 | int xregsize; | |
667 | caddr_t xregset; | |
668 | #endif | |
669 | ||
670 | if (!is_thread (inferior_pid)) | |
c5aa993b | 671 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
672 | procfs_ops.to_store_registers (regno); |
673 | return; | |
674 | } | |
675 | ||
676 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
677 | ||
678 | thread = GET_THREAD (inferior_pid); | |
679 | ||
680 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
681 | if (val != TD_OK) | |
682 | error ("sol_thread_store_registers: td_ta_map_id2thr %s", | |
683 | td_err_string (val)); | |
684 | ||
685 | if (regno != -1) | |
686 | { /* Not writing all the regs */ | |
687 | /* save new register value */ | |
688 | char old_value[REGISTER_SIZE]; | |
c5aa993b | 689 | memcpy (old_value, ®isters[REGISTER_BYTE (regno)], REGISTER_SIZE); |
c906108c | 690 | |
c60c0f5f | 691 | val = p_td_thr_getgregs (&thandle, gregset); |
c906108c SS |
692 | if (val != TD_OK) |
693 | error ("sol_thread_store_registers: td_thr_getgregs %s", | |
694 | td_err_string (val)); | |
695 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
696 | if (val != TD_OK) | |
697 | error ("sol_thread_store_registers: td_thr_getfpregs %s", | |
698 | td_err_string (val)); | |
699 | ||
700 | /* restore new register value */ | |
c5aa993b | 701 | memcpy (®isters[REGISTER_BYTE (regno)], old_value, REGISTER_SIZE); |
c906108c SS |
702 | |
703 | #if 0 | |
704 | /* thread_db doesn't seem to handle this right */ | |
705 | val = td_thr_getxregsize (&thandle, &xregsize); | |
706 | if (val != TD_OK && val != TD_NOXREGS) | |
707 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
708 | td_err_string (val)); | |
709 | ||
710 | if (val == TD_OK) | |
711 | { | |
712 | xregset = alloca (xregsize); | |
713 | val = td_thr_getxregs (&thandle, xregset); | |
714 | if (val != TD_OK) | |
715 | error ("sol_thread_store_registers: td_thr_getxregs %s", | |
716 | td_err_string (val)); | |
717 | } | |
718 | #endif | |
719 | } | |
720 | ||
c60c0f5f MS |
721 | fill_gregset ((gdb_gregset_t *) &gregset, regno); |
722 | fill_fpregset ((gdb_fpregset_t *) &fpregset, regno); | |
c906108c | 723 | |
c60c0f5f | 724 | val = p_td_thr_setgregs (&thandle, gregset); |
c906108c SS |
725 | if (val != TD_OK) |
726 | error ("sol_thread_store_registers: td_thr_setgregs %s", | |
727 | td_err_string (val)); | |
728 | val = p_td_thr_setfpregs (&thandle, &fpregset); | |
729 | if (val != TD_OK) | |
730 | error ("sol_thread_store_registers: td_thr_setfpregs %s", | |
731 | td_err_string (val)); | |
732 | ||
733 | #if 0 | |
734 | /* thread_db doesn't seem to handle this right */ | |
735 | val = td_thr_getxregsize (&thandle, &xregsize); | |
736 | if (val != TD_OK && val != TD_NOXREGS) | |
737 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
738 | td_err_string (val)); | |
739 | ||
740 | /* Should probably do something about writing the xregs here, but what are | |
741 | they? */ | |
742 | #endif | |
743 | } | |
744 | ||
745 | /* Get ready to modify the registers array. On machines which store | |
746 | individual registers, this doesn't need to do anything. On machines | |
747 | which store all the registers in one fell swoop, this makes sure | |
748 | that registers contains all the registers from the program being | |
749 | debugged. */ | |
750 | ||
751 | static void | |
fba45db2 | 752 | sol_thread_prepare_to_store (void) |
c906108c SS |
753 | { |
754 | procfs_ops.to_prepare_to_store (); | |
755 | } | |
756 | ||
c338868a KB |
757 | /* Transfer LEN bytes between GDB address MYADDR and target address |
758 | MEMADDR. If DOWRITE is non-zero, transfer them to the target, | |
759 | otherwise transfer them from the target. TARGET is unused. | |
760 | ||
761 | Returns the number of bytes transferred. */ | |
762 | ||
c906108c | 763 | static int |
c338868a KB |
764 | sol_thread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int dowrite, |
765 | struct target_ops *target) | |
c906108c SS |
766 | { |
767 | int retval; | |
768 | struct cleanup *old_chain; | |
769 | ||
770 | old_chain = save_inferior_pid (); | |
771 | ||
c5aa993b | 772 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
773 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
774 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
775 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
776 | ||
777 | if (target_has_execution) | |
778 | retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target); | |
779 | else | |
780 | retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len, | |
781 | dowrite, target); | |
782 | ||
783 | do_cleanups (old_chain); | |
784 | ||
785 | return retval; | |
786 | } | |
787 | ||
788 | /* Print status information about what we're accessing. */ | |
789 | ||
790 | static void | |
fba45db2 | 791 | sol_thread_files_info (struct target_ops *ignore) |
c906108c SS |
792 | { |
793 | procfs_ops.to_files_info (ignore); | |
794 | } | |
795 | ||
796 | static void | |
fba45db2 | 797 | sol_thread_kill_inferior (void) |
c906108c SS |
798 | { |
799 | procfs_ops.to_kill (); | |
800 | } | |
801 | ||
802 | static void | |
fba45db2 | 803 | sol_thread_notice_signals (int pid) |
c906108c SS |
804 | { |
805 | procfs_ops.to_notice_signals (PIDGET (pid)); | |
806 | } | |
807 | ||
808 | /* Fork an inferior process, and start debugging it with /proc. */ | |
809 | ||
810 | static void | |
fba45db2 | 811 | sol_thread_create_inferior (char *exec_file, char *allargs, char **env) |
c906108c SS |
812 | { |
813 | procfs_ops.to_create_inferior (exec_file, allargs, env); | |
814 | ||
815 | if (sol_thread_active && inferior_pid != 0) | |
816 | { | |
c5aa993b | 817 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
818 | |
819 | push_target (&sol_thread_ops); | |
820 | ||
821 | inferior_pid = lwp_to_thread (inferior_pid); | |
822 | if (inferior_pid == -1) | |
823 | inferior_pid = main_ph.pid; | |
824 | ||
e245aa6b MS |
825 | if (!in_thread_list (inferior_pid)) |
826 | add_thread (inferior_pid); | |
c906108c SS |
827 | } |
828 | } | |
829 | ||
830 | /* This routine is called whenever a new symbol table is read in, or when all | |
831 | symbol tables are removed. libthread_db can only be initialized when it | |
832 | finds the right variables in libthread.so. Since it's a shared library, | |
833 | those variables don't show up until the library gets mapped and the symbol | |
834 | table is read in. */ | |
835 | ||
11cf8741 JM |
836 | /* This new_objfile event is now managed by a chained function pointer. |
837 | * It is the callee's responsability to call the next client on the chain. | |
838 | */ | |
839 | ||
840 | /* Saved pointer to previous owner of the new_objfile event. */ | |
507f3c78 | 841 | static void (*target_new_objfile_chain) (struct objfile *); |
11cf8741 | 842 | |
c906108c | 843 | void |
fba45db2 | 844 | sol_thread_new_objfile (struct objfile *objfile) |
c906108c SS |
845 | { |
846 | td_err_e val; | |
847 | ||
848 | if (!objfile) | |
849 | { | |
850 | sol_thread_active = 0; | |
11cf8741 | 851 | goto quit; |
c906108c SS |
852 | } |
853 | ||
854 | /* don't do anything if init failed to resolve the libthread_db library */ | |
855 | if (!procfs_suppress_run) | |
11cf8741 | 856 | goto quit; |
c906108c SS |
857 | |
858 | /* Now, initialize the thread debugging library. This needs to be done after | |
859 | the shared libraries are located because it needs information from the | |
860 | user's thread library. */ | |
861 | ||
862 | val = p_td_init (); | |
863 | if (val != TD_OK) | |
11cf8741 JM |
864 | { |
865 | warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val)); | |
866 | goto quit; | |
867 | } | |
c906108c SS |
868 | |
869 | val = p_td_ta_new (&main_ph, &main_ta); | |
870 | if (val == TD_NOLIBTHREAD) | |
11cf8741 | 871 | goto quit; |
c906108c | 872 | else if (val != TD_OK) |
11cf8741 JM |
873 | { |
874 | warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val)); | |
875 | goto quit; | |
876 | } | |
c906108c SS |
877 | |
878 | sol_thread_active = 1; | |
11cf8741 JM |
879 | quit: |
880 | /* Call predecessor on chain, if any. */ | |
881 | if (target_new_objfile_chain) | |
882 | target_new_objfile_chain (objfile); | |
c906108c SS |
883 | } |
884 | ||
885 | /* Clean up after the inferior dies. */ | |
886 | ||
887 | static void | |
fba45db2 | 888 | sol_thread_mourn_inferior (void) |
c906108c SS |
889 | { |
890 | unpush_target (&sol_thread_ops); | |
891 | procfs_ops.to_mourn_inferior (); | |
892 | } | |
893 | ||
894 | /* Mark our target-struct as eligible for stray "run" and "attach" commands. */ | |
895 | ||
896 | static int | |
fba45db2 | 897 | sol_thread_can_run (void) |
c906108c SS |
898 | { |
899 | return procfs_suppress_run; | |
900 | } | |
901 | ||
902 | /* | |
903 | ||
c5aa993b | 904 | LOCAL FUNCTION |
c906108c | 905 | |
c5aa993b | 906 | sol_thread_alive - test thread for "aliveness" |
c906108c | 907 | |
c5aa993b | 908 | SYNOPSIS |
c906108c | 909 | |
c5aa993b | 910 | static bool sol_thread_alive (int pid); |
c906108c | 911 | |
c5aa993b | 912 | DESCRIPTION |
c906108c | 913 | |
c5aa993b | 914 | returns true if thread still active in inferior. |
c906108c SS |
915 | |
916 | */ | |
917 | ||
918 | static int | |
fba45db2 | 919 | sol_thread_alive (int pid) |
c906108c SS |
920 | { |
921 | if (is_thread (pid)) /* non-kernel thread */ | |
922 | { | |
923 | td_err_e val; | |
924 | td_thrhandle_t th; | |
925 | ||
926 | pid = GET_THREAD (pid); | |
927 | if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK) | |
c5aa993b | 928 | return 0; /* thread not found */ |
c906108c | 929 | if ((val = p_td_thr_validate (&th)) != TD_OK) |
c5aa993b JM |
930 | return 0; /* thread not valid */ |
931 | return 1; /* known thread: return true */ | |
c906108c | 932 | } |
c5aa993b JM |
933 | else |
934 | /* kernel thread (LWP): let procfs test it */ | |
c906108c SS |
935 | { |
936 | if (target_has_execution) | |
937 | return procfs_ops.to_thread_alive (pid); | |
938 | else | |
939 | return orig_core_ops.to_thread_alive (pid); | |
940 | } | |
941 | } | |
942 | ||
943 | static void | |
fba45db2 | 944 | sol_thread_stop (void) |
c906108c SS |
945 | { |
946 | procfs_ops.to_stop (); | |
947 | } | |
948 | \f | |
949 | /* These routines implement the lower half of the thread_db interface. Ie: the | |
950 | ps_* routines. */ | |
951 | ||
952 | /* Various versions of <proc_service.h> have slightly | |
953 | different function prototypes. In particular, we have | |
954 | ||
c5aa993b JM |
955 | NEWER OLDER |
956 | struct ps_prochandle * const struct ps_prochandle * | |
957 | void* char* | |
958 | const void* char* | |
959 | int size_t | |
c906108c SS |
960 | |
961 | Which one you have depends on solaris version and what | |
962 | patches you've applied. On the theory that there are | |
963 | only two major variants, we have configure check the | |
964 | prototype of ps_pdwrite (), and use that info to make | |
965 | appropriate typedefs here. */ | |
966 | ||
967 | #ifdef PROC_SERVICE_IS_OLD | |
c5aa993b JM |
968 | typedef const struct ps_prochandle *gdb_ps_prochandle_t; |
969 | typedef char *gdb_ps_read_buf_t; | |
970 | typedef char *gdb_ps_write_buf_t; | |
c906108c | 971 | typedef int gdb_ps_size_t; |
291dcb3e | 972 | typedef paddr_t gdb_ps_addr_t; |
c906108c | 973 | #else |
c5aa993b JM |
974 | typedef struct ps_prochandle *gdb_ps_prochandle_t; |
975 | typedef void *gdb_ps_read_buf_t; | |
976 | typedef const void *gdb_ps_write_buf_t; | |
c906108c | 977 | typedef size_t gdb_ps_size_t; |
291dcb3e | 978 | typedef psaddr_t gdb_ps_addr_t; |
c906108c SS |
979 | #endif |
980 | ||
981 | ||
982 | /* The next four routines are called by thread_db to tell us to stop and stop | |
983 | a particular process or lwp. Since GDB ensures that these are all stopped | |
984 | by the time we call anything in thread_db, these routines need to do | |
985 | nothing. */ | |
986 | ||
d4f3574e SS |
987 | /* Process stop */ |
988 | ||
c906108c SS |
989 | ps_err_e |
990 | ps_pstop (gdb_ps_prochandle_t ph) | |
991 | { | |
992 | return PS_OK; | |
993 | } | |
994 | ||
d4f3574e SS |
995 | /* Process continue */ |
996 | ||
c906108c SS |
997 | ps_err_e |
998 | ps_pcontinue (gdb_ps_prochandle_t ph) | |
999 | { | |
1000 | return PS_OK; | |
1001 | } | |
1002 | ||
d4f3574e SS |
1003 | /* LWP stop */ |
1004 | ||
c906108c SS |
1005 | ps_err_e |
1006 | ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1007 | { | |
1008 | return PS_OK; | |
1009 | } | |
1010 | ||
d4f3574e SS |
1011 | /* LWP continue */ |
1012 | ||
c906108c SS |
1013 | ps_err_e |
1014 | ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1015 | { | |
1016 | return PS_OK; | |
1017 | } | |
1018 | ||
d4f3574e SS |
1019 | /* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */ |
1020 | ||
c906108c SS |
1021 | ps_err_e |
1022 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name, | |
291dcb3e | 1023 | const char *ld_symbol_name, gdb_ps_addr_t * ld_symbol_addr) |
c906108c SS |
1024 | { |
1025 | struct minimal_symbol *ms; | |
1026 | ||
1027 | ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL); | |
1028 | ||
1029 | if (!ms) | |
1030 | return PS_NOSYM; | |
1031 | ||
1032 | *ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms); | |
1033 | ||
1034 | return PS_OK; | |
1035 | } | |
1036 | ||
1037 | /* Common routine for reading and writing memory. */ | |
1038 | ||
1039 | static ps_err_e | |
291dcb3e | 1040 | rw_common (int dowrite, const struct ps_prochandle *ph, gdb_ps_addr_t addr, |
c906108c SS |
1041 | char *buf, int size) |
1042 | { | |
1043 | struct cleanup *old_chain; | |
1044 | ||
1045 | old_chain = save_inferior_pid (); | |
1046 | ||
c5aa993b | 1047 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
1048 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
1049 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
1050 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
1051 | ||
23e04971 MS |
1052 | #if defined (__sparcv9) |
1053 | /* For Sparc64 cross Sparc32, make sure the address has not been | |
1054 | accidentally sign-extended (or whatever) to beyond 32 bits. */ | |
359431fb | 1055 | if (bfd_get_arch_size (exec_bfd) == 32) |
23e04971 MS |
1056 | addr &= 0xffffffff; |
1057 | #endif | |
1058 | ||
c906108c SS |
1059 | while (size > 0) |
1060 | { | |
1061 | int cc; | |
1062 | ||
1063 | if (target_has_execution) | |
1064 | cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops); | |
1065 | else | |
1066 | cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops); | |
1067 | ||
1068 | if (cc < 0) | |
1069 | { | |
1070 | if (dowrite == 0) | |
1071 | print_sys_errmsg ("rw_common (): read", errno); | |
1072 | else | |
1073 | print_sys_errmsg ("rw_common (): write", errno); | |
1074 | ||
1075 | do_cleanups (old_chain); | |
1076 | ||
1077 | return PS_ERR; | |
1078 | } | |
d5cb3e0e MS |
1079 | else if (cc == 0) |
1080 | { | |
1081 | if (dowrite == 0) | |
1082 | warning ("rw_common (): unable to read at addr 0x%lx", | |
1083 | (long) addr); | |
1084 | else | |
1085 | warning ("rw_common (): unable to write at addr 0x%lx", | |
1086 | (long) addr); | |
1087 | ||
1088 | do_cleanups (old_chain); | |
1089 | ||
1090 | return PS_ERR; | |
1091 | } | |
1092 | ||
c906108c SS |
1093 | size -= cc; |
1094 | buf += cc; | |
1095 | } | |
1096 | ||
1097 | do_cleanups (old_chain); | |
1098 | ||
1099 | return PS_OK; | |
1100 | } | |
1101 | ||
d4f3574e SS |
1102 | /* Copies SIZE bytes from target process .data segment to debugger memory. */ |
1103 | ||
c906108c | 1104 | ps_err_e |
291dcb3e | 1105 | ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1106 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
1107 | { | |
1108 | return rw_common (0, ph, addr, buf, size); | |
1109 | } | |
1110 | ||
d4f3574e SS |
1111 | /* Copies SIZE bytes from debugger memory .data segment to target process. */ |
1112 | ||
c906108c | 1113 | ps_err_e |
291dcb3e | 1114 | ps_pdwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1115 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
1116 | { | |
c5aa993b | 1117 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1118 | } |
1119 | ||
d4f3574e SS |
1120 | /* Copies SIZE bytes from target process .text segment to debugger memory. */ |
1121 | ||
c906108c | 1122 | ps_err_e |
291dcb3e | 1123 | ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1124 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) |
1125 | { | |
1126 | return rw_common (0, ph, addr, buf, size); | |
1127 | } | |
1128 | ||
d4f3574e SS |
1129 | /* Copies SIZE bytes from debugger memory .text segment to target process. */ |
1130 | ||
c906108c | 1131 | ps_err_e |
291dcb3e | 1132 | ps_ptwrite (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr, |
c906108c SS |
1133 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) |
1134 | { | |
c5aa993b | 1135 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1136 | } |
1137 | ||
d4f3574e | 1138 | /* Get integer regs for LWP */ |
c906108c SS |
1139 | |
1140 | ps_err_e | |
1141 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1142 | prgregset_t gregset) | |
1143 | { | |
1144 | struct cleanup *old_chain; | |
1145 | ||
1146 | old_chain = save_inferior_pid (); | |
1147 | ||
1148 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1149 | |
c906108c SS |
1150 | if (target_has_execution) |
1151 | procfs_ops.to_fetch_registers (-1); | |
1152 | else | |
1153 | orig_core_ops.to_fetch_registers (-1); | |
c60c0f5f | 1154 | fill_gregset ((gdb_gregset_t *) gregset, -1); |
c906108c SS |
1155 | |
1156 | do_cleanups (old_chain); | |
1157 | ||
1158 | return PS_OK; | |
1159 | } | |
1160 | ||
d4f3574e | 1161 | /* Set integer regs for LWP */ |
c906108c SS |
1162 | |
1163 | ps_err_e | |
1164 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1165 | const prgregset_t gregset) | |
1166 | { | |
1167 | struct cleanup *old_chain; | |
1168 | ||
1169 | old_chain = save_inferior_pid (); | |
1170 | ||
1171 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1172 | |
c60c0f5f | 1173 | supply_gregset ((gdb_gregset_t *) gregset); |
c906108c SS |
1174 | if (target_has_execution) |
1175 | procfs_ops.to_store_registers (-1); | |
1176 | else | |
1177 | orig_core_ops.to_store_registers (-1); | |
1178 | ||
1179 | do_cleanups (old_chain); | |
1180 | ||
1181 | return PS_OK; | |
1182 | } | |
1183 | ||
d4f3574e SS |
1184 | /* Log a message (sends to gdb_stderr). */ |
1185 | ||
c906108c | 1186 | void |
c5aa993b | 1187 | ps_plog (const char *fmt,...) |
c906108c SS |
1188 | { |
1189 | va_list args; | |
1190 | ||
1191 | va_start (args, fmt); | |
1192 | ||
1193 | vfprintf_filtered (gdb_stderr, fmt, args); | |
1194 | } | |
1195 | ||
1196 | /* Get size of extra register set. Currently a noop. */ | |
1197 | ||
1198 | ps_err_e | |
1199 | ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize) | |
1200 | { | |
1201 | #if 0 | |
1202 | int lwp_fd; | |
1203 | int regsize; | |
1204 | ps_err_e val; | |
1205 | ||
1206 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1207 | if (val != PS_OK) | |
1208 | return val; | |
1209 | ||
1210 | if (ioctl (lwp_fd, PIOCGXREGSIZE, ®size)) | |
1211 | { | |
1212 | if (errno == EINVAL) | |
1213 | return PS_NOFREGS; /* XXX Wrong code, but this is the closest | |
1214 | thing in proc_service.h */ | |
1215 | ||
1216 | print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno); | |
1217 | return PS_ERR; | |
1218 | } | |
1219 | #endif | |
1220 | ||
1221 | return PS_OK; | |
1222 | } | |
1223 | ||
1224 | /* Get extra register set. Currently a noop. */ | |
1225 | ||
1226 | ps_err_e | |
1227 | ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1228 | { | |
1229 | #if 0 | |
1230 | int lwp_fd; | |
1231 | ps_err_e val; | |
1232 | ||
1233 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1234 | if (val != PS_OK) | |
1235 | return val; | |
1236 | ||
1237 | if (ioctl (lwp_fd, PIOCGXREG, xregset)) | |
1238 | { | |
1239 | print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno); | |
1240 | return PS_ERR; | |
1241 | } | |
1242 | #endif | |
1243 | ||
1244 | return PS_OK; | |
1245 | } | |
1246 | ||
1247 | /* Set extra register set. Currently a noop. */ | |
1248 | ||
1249 | ps_err_e | |
1250 | ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1251 | { | |
1252 | #if 0 | |
1253 | int lwp_fd; | |
1254 | ps_err_e val; | |
1255 | ||
1256 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1257 | if (val != PS_OK) | |
1258 | return val; | |
1259 | ||
1260 | if (ioctl (lwp_fd, PIOCSXREG, xregset)) | |
1261 | { | |
1262 | print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno); | |
1263 | return PS_ERR; | |
1264 | } | |
1265 | #endif | |
1266 | ||
1267 | return PS_OK; | |
1268 | } | |
1269 | ||
d4f3574e | 1270 | /* Get floating-point regs for LWP */ |
c906108c SS |
1271 | |
1272 | ps_err_e | |
1273 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1274 | prfpregset_t * fpregset) |
c906108c SS |
1275 | { |
1276 | struct cleanup *old_chain; | |
1277 | ||
1278 | old_chain = save_inferior_pid (); | |
1279 | ||
1280 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
1281 | ||
1282 | if (target_has_execution) | |
1283 | procfs_ops.to_fetch_registers (-1); | |
1284 | else | |
1285 | orig_core_ops.to_fetch_registers (-1); | |
c60c0f5f | 1286 | fill_fpregset ((gdb_fpregset_t *) fpregset, -1); |
c906108c SS |
1287 | |
1288 | do_cleanups (old_chain); | |
1289 | ||
1290 | return PS_OK; | |
1291 | } | |
1292 | ||
d4f3574e | 1293 | /* Set floating-point regs for LWP */ |
c906108c SS |
1294 | |
1295 | ps_err_e | |
1296 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1297 | const prfpregset_t * fpregset) |
c906108c SS |
1298 | { |
1299 | struct cleanup *old_chain; | |
1300 | ||
1301 | old_chain = save_inferior_pid (); | |
1302 | ||
1303 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1304 | |
c60c0f5f | 1305 | supply_fpregset ((gdb_fpregset_t *) fpregset); |
c906108c SS |
1306 | if (target_has_execution) |
1307 | procfs_ops.to_store_registers (-1); | |
1308 | else | |
1309 | orig_core_ops.to_store_registers (-1); | |
1310 | ||
1311 | do_cleanups (old_chain); | |
1312 | ||
1313 | return PS_OK; | |
1314 | } | |
1315 | ||
23715f29 | 1316 | #ifdef PR_MODEL_LP64 |
23e04971 MS |
1317 | /* Identify process as 32-bit or 64-bit. |
1318 | At the moment I'm using bfd to do this. | |
1319 | There might be a more solaris-specific (eg. procfs) method, | |
1320 | but this ought to work. */ | |
1321 | ||
1322 | ps_err_e | |
1323 | ps_pdmodel (gdb_ps_prochandle_t ph, int *data_model) | |
1324 | { | |
1325 | if (exec_bfd == 0) | |
a95ac8b6 PS |
1326 | *data_model = PR_MODEL_UNKNOWN; |
1327 | else if (bfd_get_arch_size (exec_bfd) == 32) | |
23e04971 MS |
1328 | *data_model = PR_MODEL_ILP32; |
1329 | else | |
1330 | *data_model = PR_MODEL_LP64; | |
1331 | ||
1332 | return PS_OK; | |
1333 | } | |
23715f29 | 1334 | #endif /* PR_MODEL_LP64 */ |
23e04971 | 1335 | |
c906108c SS |
1336 | #ifdef TM_I386SOL2_H |
1337 | ||
d4f3574e SS |
1338 | /* Reads the local descriptor table of a LWP. */ |
1339 | ||
c906108c SS |
1340 | ps_err_e |
1341 | ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1342 | struct ssd *pldt) | |
1343 | { | |
05e28a7b AC |
1344 | /* NOTE: only used on Solaris, therefore OK to refer to procfs.c */ |
1345 | extern struct ssd *procfs_find_LDT_entry (int); | |
1346 | struct ssd *ret; | |
c906108c | 1347 | |
2f09097b ND |
1348 | /* FIXME: can't I get the process ID from the prochandle or something? |
1349 | */ | |
1350 | ||
1351 | if (inferior_pid <= 0 || lwpid <= 0) | |
1352 | return PS_BADLID; | |
1353 | ||
05e28a7b AC |
1354 | ret = procfs_find_LDT_entry (BUILD_LWP (lwpid, PIDGET (inferior_pid))); |
1355 | if (ret) | |
c906108c | 1356 | { |
05e28a7b AC |
1357 | memcpy (pldt, ret, sizeof (struct ssd)); |
1358 | return PS_OK; | |
c906108c | 1359 | } |
05e28a7b | 1360 | else /* LDT not found. */ |
c906108c | 1361 | return PS_ERR; |
c5aa993b | 1362 | } |
c906108c SS |
1363 | #endif /* TM_I386SOL2_H */ |
1364 | \f | |
1365 | /* Convert a pid to printable form. */ | |
1366 | ||
1367 | char * | |
fba45db2 | 1368 | solaris_pid_to_str (int pid) |
c906108c SS |
1369 | { |
1370 | static char buf[100]; | |
1371 | ||
1372 | /* in case init failed to resolve the libthread_db library */ | |
1373 | if (!procfs_suppress_run) | |
1374 | return procfs_pid_to_str (pid); | |
1375 | ||
1376 | if (is_thread (pid)) | |
1377 | { | |
1378 | int lwp; | |
1379 | ||
1380 | lwp = thread_to_lwp (pid, -2); | |
1381 | ||
1382 | if (lwp == -1) | |
1383 | sprintf (buf, "Thread %d (defunct)", GET_THREAD (pid)); | |
1384 | else if (lwp != -2) | |
1385 | sprintf (buf, "Thread %d (LWP %d)", GET_THREAD (pid), GET_LWP (lwp)); | |
1386 | else | |
1387 | sprintf (buf, "Thread %d ", GET_THREAD (pid)); | |
1388 | } | |
1389 | else if (GET_LWP (pid) != 0) | |
1390 | sprintf (buf, "LWP %d ", GET_LWP (pid)); | |
1391 | else | |
1392 | sprintf (buf, "process %d ", PIDGET (pid)); | |
1393 | ||
1394 | return buf; | |
1395 | } | |
1396 | \f | |
1397 | ||
1398 | /* Worker bee for find_new_threads | |
1399 | Callback function that gets called once per USER thread (i.e., not | |
1400 | kernel) thread. */ | |
1401 | ||
1402 | static int | |
fba45db2 | 1403 | sol_find_new_threads_callback (const td_thrhandle_t *th, void *ignored) |
c906108c SS |
1404 | { |
1405 | td_err_e retval; | |
1406 | td_thrinfo_t ti; | |
1407 | int pid; | |
1408 | ||
c5aa993b | 1409 | if ((retval = p_td_thr_get_info (th, &ti)) != TD_OK) |
c906108c SS |
1410 | { |
1411 | return -1; | |
1412 | } | |
c5aa993b JM |
1413 | pid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_pid)); |
1414 | if (!in_thread_list (pid)) | |
1415 | add_thread (pid); | |
c906108c SS |
1416 | |
1417 | return 0; | |
1418 | } | |
1419 | ||
d4f3574e | 1420 | static void |
fba45db2 | 1421 | sol_find_new_threads (void) |
c906108c SS |
1422 | { |
1423 | /* don't do anything if init failed to resolve the libthread_db library */ | |
1424 | if (!procfs_suppress_run) | |
1425 | return; | |
1426 | ||
1427 | if (inferior_pid == -1) | |
1428 | { | |
c5aa993b | 1429 | printf_filtered ("No process.\n"); |
c906108c SS |
1430 | return; |
1431 | } | |
c3f6f71d | 1432 | procfs_find_new_threads (); /* first find new kernel threads. */ |
c5aa993b | 1433 | p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0, |
c906108c SS |
1434 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1435 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1436 | } | |
1437 | ||
1438 | static void | |
fba45db2 | 1439 | sol_core_open (char *filename, int from_tty) |
c906108c SS |
1440 | { |
1441 | orig_core_ops.to_open (filename, from_tty); | |
1442 | } | |
1443 | ||
1444 | static void | |
fba45db2 | 1445 | sol_core_close (int quitting) |
c906108c SS |
1446 | { |
1447 | orig_core_ops.to_close (quitting); | |
1448 | } | |
1449 | ||
1450 | static void | |
fba45db2 | 1451 | sol_core_detach (char *args, int from_tty) |
c906108c SS |
1452 | { |
1453 | unpush_target (&core_ops); | |
1454 | orig_core_ops.to_detach (args, from_tty); | |
1455 | } | |
1456 | ||
1457 | static void | |
fba45db2 | 1458 | sol_core_files_info (struct target_ops *t) |
c906108c SS |
1459 | { |
1460 | orig_core_ops.to_files_info (t); | |
1461 | } | |
1462 | ||
c906108c SS |
1463 | /* Worker bee for info sol-thread command. This is a callback function that |
1464 | gets called once for each Solaris thread (ie. not kernel thread) in the | |
1465 | inferior. Print anything interesting that we can think of. */ | |
1466 | ||
c5aa993b | 1467 | static int |
fba45db2 | 1468 | info_cb (const td_thrhandle_t *th, void *s) |
c906108c SS |
1469 | { |
1470 | td_err_e ret; | |
1471 | td_thrinfo_t ti; | |
c906108c SS |
1472 | |
1473 | if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK) | |
1474 | { | |
c5aa993b JM |
1475 | printf_filtered ("%s thread #%d, lwp %d, ", |
1476 | ti.ti_type == TD_THR_SYSTEM ? "system" : "user ", | |
c906108c | 1477 | ti.ti_tid, ti.ti_lid); |
c5aa993b JM |
1478 | switch (ti.ti_state) |
1479 | { | |
c906108c | 1480 | default: |
c5aa993b JM |
1481 | case TD_THR_UNKNOWN: |
1482 | printf_filtered ("<unknown state>"); | |
1483 | break; | |
1484 | case TD_THR_STOPPED: | |
1485 | printf_filtered ("(stopped)"); | |
1486 | break; | |
1487 | case TD_THR_RUN: | |
1488 | printf_filtered ("(run) "); | |
1489 | break; | |
1490 | case TD_THR_ACTIVE: | |
1491 | printf_filtered ("(active) "); | |
1492 | break; | |
1493 | case TD_THR_ZOMBIE: | |
1494 | printf_filtered ("(zombie) "); | |
1495 | break; | |
1496 | case TD_THR_SLEEP: | |
1497 | printf_filtered ("(asleep) "); | |
1498 | break; | |
1499 | case TD_THR_STOPPED_ASLEEP: | |
1500 | printf_filtered ("(stopped asleep)"); | |
1501 | break; | |
1502 | } | |
c906108c SS |
1503 | /* Print thr_create start function: */ |
1504 | if (ti.ti_startfunc != 0) | |
4ce44c66 JM |
1505 | { |
1506 | struct minimal_symbol *msym; | |
1507 | msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc); | |
1508 | if (msym) | |
1509 | printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym)); | |
1510 | else | |
1511 | printf_filtered (" startfunc: 0x%s\n", paddr (ti.ti_startfunc)); | |
1512 | } | |
c906108c SS |
1513 | |
1514 | /* If thread is asleep, print function that went to sleep: */ | |
1515 | if (ti.ti_state == TD_THR_SLEEP) | |
4ce44c66 JM |
1516 | { |
1517 | struct minimal_symbol *msym; | |
1518 | msym = lookup_minimal_symbol_by_pc (ti.ti_pc); | |
1519 | if (msym) | |
1520 | printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym)); | |
1521 | else | |
1522 | printf_filtered (" - Sleep func: 0x%s\n", paddr (ti.ti_startfunc)); | |
1523 | } | |
c906108c SS |
1524 | |
1525 | /* Wrap up line, if necessary */ | |
1526 | if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0) | |
1527 | printf_filtered ("\n"); /* don't you hate counting newlines? */ | |
1528 | } | |
1529 | else | |
1530 | warning ("info sol-thread: failed to get info for thread."); | |
1531 | ||
c5aa993b | 1532 | return 0; |
c906108c SS |
1533 | } |
1534 | ||
1535 | /* List some state about each Solaris user thread in the inferior. */ | |
1536 | ||
1537 | static void | |
fba45db2 | 1538 | info_solthreads (char *args, int from_tty) |
c906108c | 1539 | { |
c5aa993b | 1540 | p_td_ta_thr_iter (main_ta, info_cb, args, |
c906108c SS |
1541 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1542 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1543 | } | |
c906108c SS |
1544 | |
1545 | static int | |
fba45db2 | 1546 | ignore (CORE_ADDR addr, char *contents) |
c906108c SS |
1547 | { |
1548 | return 0; | |
1549 | } | |
1550 | ||
1551 | ||
1552 | static void | |
fba45db2 | 1553 | init_sol_thread_ops (void) |
c906108c SS |
1554 | { |
1555 | sol_thread_ops.to_shortname = "solaris-threads"; | |
1556 | sol_thread_ops.to_longname = "Solaris threads and pthread."; | |
1557 | sol_thread_ops.to_doc = "Solaris threads and pthread support."; | |
1558 | sol_thread_ops.to_open = sol_thread_open; | |
1559 | sol_thread_ops.to_close = 0; | |
1560 | sol_thread_ops.to_attach = sol_thread_attach; | |
1561 | sol_thread_ops.to_detach = sol_thread_detach; | |
1562 | sol_thread_ops.to_resume = sol_thread_resume; | |
1563 | sol_thread_ops.to_wait = sol_thread_wait; | |
1564 | sol_thread_ops.to_fetch_registers = sol_thread_fetch_registers; | |
1565 | sol_thread_ops.to_store_registers = sol_thread_store_registers; | |
1566 | sol_thread_ops.to_prepare_to_store = sol_thread_prepare_to_store; | |
1567 | sol_thread_ops.to_xfer_memory = sol_thread_xfer_memory; | |
1568 | sol_thread_ops.to_files_info = sol_thread_files_info; | |
1569 | sol_thread_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1570 | sol_thread_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1571 | sol_thread_ops.to_terminal_init = terminal_init_inferior; | |
1572 | sol_thread_ops.to_terminal_inferior = terminal_inferior; | |
1573 | sol_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1574 | sol_thread_ops.to_terminal_ours = terminal_ours; | |
1575 | sol_thread_ops.to_terminal_info = child_terminal_info; | |
1576 | sol_thread_ops.to_kill = sol_thread_kill_inferior; | |
1577 | sol_thread_ops.to_load = 0; | |
1578 | sol_thread_ops.to_lookup_symbol = 0; | |
1579 | sol_thread_ops.to_create_inferior = sol_thread_create_inferior; | |
1580 | sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior; | |
1581 | sol_thread_ops.to_can_run = sol_thread_can_run; | |
1582 | sol_thread_ops.to_notice_signals = sol_thread_notice_signals; | |
1583 | sol_thread_ops.to_thread_alive = sol_thread_alive; | |
ed9a39eb | 1584 | sol_thread_ops.to_pid_to_str = solaris_pid_to_str; |
b83266a0 | 1585 | sol_thread_ops.to_find_new_threads = sol_find_new_threads; |
c906108c SS |
1586 | sol_thread_ops.to_stop = sol_thread_stop; |
1587 | sol_thread_ops.to_stratum = process_stratum; | |
1588 | sol_thread_ops.to_has_all_memory = 1; | |
1589 | sol_thread_ops.to_has_memory = 1; | |
1590 | sol_thread_ops.to_has_stack = 1; | |
1591 | sol_thread_ops.to_has_registers = 1; | |
1592 | sol_thread_ops.to_has_execution = 1; | |
1593 | sol_thread_ops.to_has_thread_control = tc_none; | |
1594 | sol_thread_ops.to_sections = 0; | |
1595 | sol_thread_ops.to_sections_end = 0; | |
1596 | sol_thread_ops.to_magic = OPS_MAGIC; | |
1597 | } | |
1598 | ||
1599 | ||
1600 | static void | |
fba45db2 | 1601 | init_sol_core_ops (void) |
c906108c | 1602 | { |
c5aa993b JM |
1603 | sol_core_ops.to_shortname = "solaris-core"; |
1604 | sol_core_ops.to_longname = "Solaris core threads and pthread."; | |
1605 | sol_core_ops.to_doc = "Solaris threads and pthread support for core files."; | |
1606 | sol_core_ops.to_open = sol_core_open; | |
1607 | sol_core_ops.to_close = sol_core_close; | |
1608 | sol_core_ops.to_attach = sol_thread_attach; | |
1609 | sol_core_ops.to_detach = sol_core_detach; | |
c906108c | 1610 | /* sol_core_ops.to_resume = 0; */ |
c5aa993b JM |
1611 | /* sol_core_ops.to_wait = 0; */ |
1612 | sol_core_ops.to_fetch_registers = sol_thread_fetch_registers; | |
c906108c SS |
1613 | /* sol_core_ops.to_store_registers = 0; */ |
1614 | /* sol_core_ops.to_prepare_to_store = 0; */ | |
c5aa993b JM |
1615 | sol_core_ops.to_xfer_memory = sol_thread_xfer_memory; |
1616 | sol_core_ops.to_files_info = sol_core_files_info; | |
1617 | sol_core_ops.to_insert_breakpoint = ignore; | |
1618 | sol_core_ops.to_remove_breakpoint = ignore; | |
c906108c SS |
1619 | /* sol_core_ops.to_terminal_init = 0; */ |
1620 | /* sol_core_ops.to_terminal_inferior = 0; */ | |
1621 | /* sol_core_ops.to_terminal_ours_for_output = 0; */ | |
1622 | /* sol_core_ops.to_terminal_ours = 0; */ | |
1623 | /* sol_core_ops.to_terminal_info = 0; */ | |
1624 | /* sol_core_ops.to_kill = 0; */ | |
1625 | /* sol_core_ops.to_load = 0; */ | |
1626 | /* sol_core_ops.to_lookup_symbol = 0; */ | |
c5aa993b JM |
1627 | sol_core_ops.to_create_inferior = sol_thread_create_inferior; |
1628 | sol_core_ops.to_stratum = core_stratum; | |
1629 | sol_core_ops.to_has_all_memory = 0; | |
1630 | sol_core_ops.to_has_memory = 1; | |
1631 | sol_core_ops.to_has_stack = 1; | |
1632 | sol_core_ops.to_has_registers = 1; | |
1633 | sol_core_ops.to_has_execution = 0; | |
1634 | sol_core_ops.to_has_thread_control = tc_none; | |
db348f27 | 1635 | sol_core_ops.to_thread_alive = sol_thread_alive; |
ed9a39eb | 1636 | sol_core_ops.to_pid_to_str = solaris_pid_to_str; |
db348f27 ND |
1637 | /* On Solaris/x86, when debugging a threaded core file from process <n>, |
1638 | the following causes "info threads" to produce "procfs: couldn't find pid | |
1639 | <n> in procinfo list" where <n> is the pid of the process that produced | |
1640 | the core file. Disable it for now. */ | |
1641 | /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */ | |
c5aa993b JM |
1642 | sol_core_ops.to_sections = 0; |
1643 | sol_core_ops.to_sections_end = 0; | |
1644 | sol_core_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1645 | } |
1646 | ||
1647 | /* we suppress the call to add_target of core_ops in corelow because | |
1648 | if there are two targets in the stratum core_stratum, find_core_target | |
1649 | won't know which one to return. see corelow.c for an additonal | |
1650 | comment on coreops_suppress_target. */ | |
1651 | int coreops_suppress_target = 1; | |
1652 | ||
1653 | void | |
fba45db2 | 1654 | _initialize_sol_thread (void) |
c906108c SS |
1655 | { |
1656 | void *dlhandle; | |
1657 | ||
1658 | init_sol_thread_ops (); | |
1659 | init_sol_core_ops (); | |
1660 | ||
1661 | dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW); | |
1662 | if (!dlhandle) | |
1663 | goto die; | |
1664 | ||
1665 | #define resolve(X) \ | |
1666 | if (!(p_##X = dlsym (dlhandle, #X))) \ | |
1667 | goto die; | |
1668 | ||
1669 | resolve (td_log); | |
1670 | resolve (td_ta_new); | |
1671 | resolve (td_ta_delete); | |
1672 | resolve (td_init); | |
1673 | resolve (td_ta_get_ph); | |
1674 | resolve (td_ta_get_nthreads); | |
1675 | resolve (td_ta_tsd_iter); | |
1676 | resolve (td_ta_thr_iter); | |
1677 | resolve (td_thr_validate); | |
1678 | resolve (td_thr_tsd); | |
1679 | resolve (td_thr_get_info); | |
1680 | resolve (td_thr_getfpregs); | |
1681 | resolve (td_thr_getxregsize); | |
1682 | resolve (td_thr_getxregs); | |
1683 | resolve (td_thr_sigsetmask); | |
1684 | resolve (td_thr_setprio); | |
1685 | resolve (td_thr_setsigpending); | |
1686 | resolve (td_thr_setfpregs); | |
1687 | resolve (td_thr_setxregs); | |
1688 | resolve (td_ta_map_id2thr); | |
1689 | resolve (td_ta_map_lwp2thr); | |
1690 | resolve (td_thr_getgregs); | |
1691 | resolve (td_thr_setgregs); | |
1692 | ||
1693 | add_target (&sol_thread_ops); | |
1694 | ||
1695 | procfs_suppress_run = 1; | |
1696 | ||
c5aa993b JM |
1697 | add_cmd ("sol-threads", class_maintenance, info_solthreads, |
1698 | "Show info on Solaris user threads.\n", &maintenanceinfolist); | |
c906108c | 1699 | |
c5aa993b JM |
1700 | memcpy (&orig_core_ops, &core_ops, sizeof (struct target_ops)); |
1701 | memcpy (&core_ops, &sol_core_ops, sizeof (struct target_ops)); | |
c906108c SS |
1702 | add_target (&core_ops); |
1703 | ||
11cf8741 JM |
1704 | /* Hook into new_objfile notification. */ |
1705 | target_new_objfile_chain = target_new_objfile_hook; | |
1706 | target_new_objfile_hook = sol_thread_new_objfile; | |
c906108c SS |
1707 | return; |
1708 | ||
c5aa993b | 1709 | die: |
c906108c SS |
1710 | |
1711 | fprintf_unfiltered (gdb_stderr, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ()); | |
1712 | ||
1713 | if (dlhandle) | |
1714 | dlclose (dlhandle); | |
1715 | ||
1716 | /* allow the user to debug non-threaded core files */ | |
c5aa993b | 1717 | add_target (&core_ops); |
c906108c SS |
1718 | |
1719 | return; | |
1720 | } |