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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 | ||
122 | #define THREAD_FLAG 0x80000000 | |
123 | #define is_thread(ARG) (((ARG) & THREAD_FLAG) != 0) | |
124 | #define is_lwp(ARG) (((ARG) & THREAD_FLAG) == 0) | |
125 | #define GET_LWP(LWP_ID) (TIDGET(LWP_ID)) | |
126 | #define GET_THREAD(THREAD_ID) (((THREAD_ID) >> 16) & 0x7fff) | |
127 | #define BUILD_LWP(LWP_ID, PID) ((LWP_ID) << 16 | (PID)) | |
128 | #define BUILD_THREAD(THREAD_ID, PID) (THREAD_FLAG | BUILD_LWP (THREAD_ID, PID)) | |
129 | ||
130 | /* Pointers to routines from lithread_db resolved by dlopen() */ | |
131 | ||
132 | static void | |
133 | (*p_td_log) (const int on_off); | |
134 | static td_err_e | |
c5aa993b | 135 | (*p_td_ta_new) (const struct ps_prochandle * ph_p, td_thragent_t ** ta_pp); |
c906108c | 136 | static td_err_e |
c5aa993b | 137 | (*p_td_ta_delete) (td_thragent_t * ta_p); |
c906108c SS |
138 | static td_err_e |
139 | (*p_td_init) (void); | |
140 | static td_err_e | |
c5aa993b | 141 | (*p_td_ta_get_ph) (const td_thragent_t * ta_p, struct ps_prochandle ** ph_pp); |
c906108c | 142 | static td_err_e |
c5aa993b | 143 | (*p_td_ta_get_nthreads) (const td_thragent_t * ta_p, int *nthread_p); |
c906108c | 144 | static td_err_e |
c5aa993b | 145 | (*p_td_ta_tsd_iter) (const td_thragent_t * ta_p, td_key_iter_f * cb, void *cbdata_p); |
c906108c | 146 | static td_err_e |
c5aa993b JM |
147 | (*p_td_ta_thr_iter) (const td_thragent_t * ta_p, td_thr_iter_f * cb, void *cbdata_p, td_thr_state_e state, |
148 | int ti_pri, sigset_t * ti_sigmask_p, unsigned ti_user_flags); | |
c906108c | 149 | static td_err_e |
c5aa993b | 150 | (*p_td_thr_validate) (const td_thrhandle_t * th_p); |
c906108c | 151 | static td_err_e |
c5aa993b | 152 | (*p_td_thr_tsd) (const td_thrhandle_t * th_p, const thread_key_t key, void **data_pp); |
c906108c | 153 | static td_err_e |
c5aa993b | 154 | (*p_td_thr_get_info) (const td_thrhandle_t * th_p, td_thrinfo_t * ti_p); |
c906108c | 155 | static td_err_e |
c5aa993b | 156 | (*p_td_thr_getfpregs) (const td_thrhandle_t * th_p, prfpregset_t * fpregset); |
c906108c | 157 | static td_err_e |
c5aa993b | 158 | (*p_td_thr_getxregsize) (const td_thrhandle_t * th_p, int *xregsize); |
c906108c | 159 | static td_err_e |
c5aa993b | 160 | (*p_td_thr_getxregs) (const td_thrhandle_t * th_p, const caddr_t xregset); |
c906108c | 161 | static td_err_e |
c5aa993b | 162 | (*p_td_thr_sigsetmask) (const td_thrhandle_t * th_p, const sigset_t ti_sigmask); |
c906108c | 163 | static td_err_e |
c5aa993b | 164 | (*p_td_thr_setprio) (const td_thrhandle_t * th_p, const int ti_pri); |
c906108c | 165 | static td_err_e |
c5aa993b | 166 | (*p_td_thr_setsigpending) (const td_thrhandle_t * th_p, const uchar_t ti_pending_flag, const sigset_t ti_pending); |
c906108c | 167 | static td_err_e |
c5aa993b | 168 | (*p_td_thr_setfpregs) (const td_thrhandle_t * th_p, const prfpregset_t * fpregset); |
c906108c | 169 | static td_err_e |
c5aa993b | 170 | (*p_td_thr_setxregs) (const td_thrhandle_t * th_p, const caddr_t xregset); |
c906108c | 171 | static td_err_e |
c5aa993b | 172 | (*p_td_ta_map_id2thr) (const td_thragent_t * ta_p, thread_t tid, td_thrhandle_t * th_p); |
c906108c | 173 | static td_err_e |
c5aa993b | 174 | (*p_td_ta_map_lwp2thr) (const td_thragent_t * ta_p, lwpid_t lwpid, td_thrhandle_t * th_p); |
c906108c | 175 | static td_err_e |
c5aa993b | 176 | (*p_td_thr_getgregs) (const td_thrhandle_t * th_p, prgregset_t regset); |
c906108c | 177 | static td_err_e |
c5aa993b | 178 | (*p_td_thr_setgregs) (const td_thrhandle_t * th_p, const prgregset_t regset); |
c906108c SS |
179 | \f |
180 | /* | |
181 | ||
c5aa993b | 182 | LOCAL FUNCTION |
c906108c | 183 | |
c5aa993b | 184 | td_err_string - Convert a thread_db error code to a string |
c906108c | 185 | |
c5aa993b | 186 | SYNOPSIS |
c906108c | 187 | |
c5aa993b | 188 | char * td_err_string (errcode) |
c906108c | 189 | |
c5aa993b | 190 | DESCRIPTION |
c906108c | 191 | |
c5aa993b JM |
192 | Return the thread_db error string associated with errcode. If errcode |
193 | is unknown, then return a message. | |
c906108c SS |
194 | |
195 | */ | |
196 | ||
197 | static char * | |
198 | td_err_string (errcode) | |
199 | td_err_e errcode; | |
200 | { | |
201 | static struct string_map | |
c5aa993b JM |
202 | td_err_table[] = |
203 | { | |
204 | {TD_OK, "generic \"call succeeded\""}, | |
205 | {TD_ERR, "generic error."}, | |
206 | {TD_NOTHR, "no thread can be found to satisfy query"}, | |
207 | {TD_NOSV, "no synch. variable can be found to satisfy query"}, | |
208 | {TD_NOLWP, "no lwp can be found to satisfy query"}, | |
209 | {TD_BADPH, "invalid process handle"}, | |
210 | {TD_BADTH, "invalid thread handle"}, | |
211 | {TD_BADSH, "invalid synchronization handle"}, | |
212 | {TD_BADTA, "invalid thread agent"}, | |
213 | {TD_BADKEY, "invalid key"}, | |
214 | {TD_NOMSG, "td_thr_event_getmsg() called when there was no message"}, | |
215 | {TD_NOFPREGS, "FPU register set not available for given thread"}, | |
216 | {TD_NOLIBTHREAD, "application not linked with libthread"}, | |
217 | {TD_NOEVENT, "requested event is not supported"}, | |
218 | {TD_NOCAPAB, "capability not available"}, | |
219 | {TD_DBERR, "Debugger service failed"}, | |
220 | {TD_NOAPLIC, "Operation not applicable to"}, | |
221 | {TD_NOTSD, "No thread specific data for this thread"}, | |
222 | {TD_MALLOC, "Malloc failed"}, | |
223 | {TD_PARTIALREG, "Only part of register set was writen/read"}, | |
224 | {TD_NOXREGS, "X register set not available for given thread"} | |
225 | }; | |
c906108c SS |
226 | const int td_err_size = sizeof td_err_table / sizeof (struct string_map); |
227 | int i; | |
228 | static char buf[50]; | |
229 | ||
230 | for (i = 0; i < td_err_size; i++) | |
231 | if (td_err_table[i].num == errcode) | |
232 | return td_err_table[i].str; | |
c5aa993b | 233 | |
c906108c SS |
234 | sprintf (buf, "Unknown thread_db error code: %d", errcode); |
235 | ||
236 | return buf; | |
237 | } | |
238 | \f | |
239 | /* | |
240 | ||
c5aa993b | 241 | LOCAL FUNCTION |
c906108c | 242 | |
c5aa993b | 243 | td_state_string - Convert a thread_db state code to a string |
c906108c | 244 | |
c5aa993b | 245 | SYNOPSIS |
c906108c | 246 | |
c5aa993b | 247 | char * td_state_string (statecode) |
c906108c | 248 | |
c5aa993b | 249 | DESCRIPTION |
c906108c | 250 | |
c5aa993b JM |
251 | Return the thread_db state string associated with statecode. If |
252 | statecode is unknown, then return a message. | |
c906108c SS |
253 | |
254 | */ | |
255 | ||
256 | static char * | |
257 | td_state_string (statecode) | |
258 | td_thr_state_e statecode; | |
259 | { | |
260 | static struct string_map | |
c5aa993b JM |
261 | td_thr_state_table[] = |
262 | { | |
263 | {TD_THR_ANY_STATE, "any state"}, | |
264 | {TD_THR_UNKNOWN, "unknown"}, | |
265 | {TD_THR_STOPPED, "stopped"}, | |
266 | {TD_THR_RUN, "run"}, | |
267 | {TD_THR_ACTIVE, "active"}, | |
268 | {TD_THR_ZOMBIE, "zombie"}, | |
269 | {TD_THR_SLEEP, "sleep"}, | |
270 | {TD_THR_STOPPED_ASLEEP, "stopped asleep"} | |
271 | }; | |
c906108c SS |
272 | const int td_thr_state_table_size = sizeof td_thr_state_table / sizeof (struct string_map); |
273 | int i; | |
274 | static char buf[50]; | |
275 | ||
276 | for (i = 0; i < td_thr_state_table_size; i++) | |
277 | if (td_thr_state_table[i].num == statecode) | |
278 | return td_thr_state_table[i].str; | |
c5aa993b | 279 | |
c906108c SS |
280 | sprintf (buf, "Unknown thread_db state code: %d", statecode); |
281 | ||
282 | return buf; | |
283 | } | |
284 | \f | |
285 | /* | |
286 | ||
c5aa993b | 287 | LOCAL FUNCTION |
c906108c | 288 | |
c5aa993b | 289 | thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id. |
c906108c | 290 | |
c5aa993b | 291 | SYNOPSIS |
c906108c | 292 | |
c5aa993b | 293 | int thread_to_lwp (thread_id, default_lwp) |
c906108c | 294 | |
c5aa993b | 295 | DESCRIPTION |
c906108c | 296 | |
c5aa993b JM |
297 | This function converts a Posix or Solaris thread id to a lightweight |
298 | process id. If thread_id is non-existent, that's an error. If it's | |
299 | an inactive thread, then we return default_lwp. | |
c906108c | 300 | |
c5aa993b | 301 | NOTES |
c906108c | 302 | |
c5aa993b | 303 | This function probably shouldn't call error()... |
c906108c SS |
304 | |
305 | */ | |
306 | ||
307 | static int | |
308 | thread_to_lwp (thread_id, default_lwp) | |
309 | int thread_id; | |
310 | int default_lwp; | |
311 | { | |
312 | td_thrinfo_t ti; | |
313 | td_thrhandle_t th; | |
314 | td_err_e val; | |
315 | ||
316 | if (is_lwp (thread_id)) | |
c5aa993b | 317 | return thread_id; /* It's already an LWP id */ |
c906108c SS |
318 | |
319 | /* It's a thread. Convert to lwp */ | |
320 | ||
321 | val = p_td_ta_map_id2thr (main_ta, GET_THREAD (thread_id), &th); | |
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_ta_map_id2thr %s", td_err_string (val)); | |
326 | ||
327 | val = p_td_thr_get_info (&th, &ti); | |
328 | if (val == TD_NOTHR) | |
c5aa993b | 329 | return -1; /* thread must have terminated */ |
c906108c SS |
330 | else if (val != TD_OK) |
331 | error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val)); | |
332 | ||
333 | if (ti.ti_state != TD_THR_ACTIVE) | |
334 | { | |
335 | if (default_lwp != -1) | |
336 | return default_lwp; | |
337 | error ("thread_to_lwp: thread state not active: %s", | |
338 | td_state_string (ti.ti_state)); | |
339 | } | |
340 | ||
341 | return BUILD_LWP (ti.ti_lid, PIDGET (thread_id)); | |
342 | } | |
343 | \f | |
344 | /* | |
345 | ||
c5aa993b | 346 | LOCAL FUNCTION |
c906108c | 347 | |
c5aa993b | 348 | lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id. |
c906108c | 349 | |
c5aa993b | 350 | SYNOPSIS |
c906108c | 351 | |
c5aa993b | 352 | int lwp_to_thread (lwp_id) |
c906108c | 353 | |
c5aa993b | 354 | DESCRIPTION |
c906108c | 355 | |
c5aa993b JM |
356 | This function converts a lightweight process id to a Posix or Solaris |
357 | thread id. If thread_id is non-existent, that's an error. | |
c906108c | 358 | |
c5aa993b | 359 | NOTES |
c906108c | 360 | |
c5aa993b | 361 | This function probably shouldn't call error()... |
c906108c SS |
362 | |
363 | */ | |
364 | ||
365 | static int | |
366 | lwp_to_thread (lwp) | |
367 | int lwp; | |
368 | { | |
369 | td_thrinfo_t ti; | |
370 | td_thrhandle_t th; | |
371 | td_err_e val; | |
372 | ||
373 | if (is_thread (lwp)) | |
374 | return lwp; /* It's already a thread id */ | |
375 | ||
376 | /* It's an lwp. Convert it to a thread id. */ | |
377 | ||
378 | if (!sol_thread_alive (lwp)) | |
379 | return -1; /* defunct lwp */ | |
380 | ||
381 | val = p_td_ta_map_lwp2thr (main_ta, GET_LWP (lwp), &th); | |
382 | if (val == TD_NOTHR) | |
c5aa993b | 383 | return -1; /* thread must have terminated */ |
c906108c SS |
384 | else if (val != TD_OK) |
385 | error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val)); | |
386 | ||
387 | val = p_td_thr_validate (&th); | |
388 | if (val == TD_NOTHR) | |
389 | return lwp; /* libthread doesn't know about it, just return lwp */ | |
390 | else if (val != TD_OK) | |
391 | error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val)); | |
392 | ||
393 | val = p_td_thr_get_info (&th, &ti); | |
394 | if (val == TD_NOTHR) | |
c5aa993b | 395 | return -1; /* thread must have terminated */ |
c906108c SS |
396 | else if (val != TD_OK) |
397 | error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val)); | |
398 | ||
399 | return BUILD_THREAD (ti.ti_tid, PIDGET (lwp)); | |
400 | } | |
401 | \f | |
402 | /* | |
403 | ||
c5aa993b | 404 | LOCAL FUNCTION |
c906108c | 405 | |
c5aa993b JM |
406 | save_inferior_pid - Save inferior_pid on the cleanup list |
407 | restore_inferior_pid - Restore inferior_pid from the cleanup list | |
c906108c | 408 | |
c5aa993b | 409 | SYNOPSIS |
c906108c | 410 | |
c5aa993b JM |
411 | struct cleanup *save_inferior_pid () |
412 | void restore_inferior_pid (int pid) | |
c906108c | 413 | |
c5aa993b | 414 | DESCRIPTION |
c906108c | 415 | |
c5aa993b JM |
416 | These two functions act in unison to restore inferior_pid in |
417 | case of an error. | |
c906108c | 418 | |
c5aa993b | 419 | NOTES |
c906108c | 420 | |
c5aa993b JM |
421 | inferior_pid is a global variable that needs to be changed by many of |
422 | these routines before calling functions in procfs.c. In order to | |
423 | guarantee that inferior_pid gets restored (in case of errors), you | |
424 | need to call save_inferior_pid before changing it. At the end of the | |
425 | function, you should invoke do_cleanups to restore it. | |
c906108c SS |
426 | |
427 | */ | |
428 | ||
429 | ||
430 | static struct cleanup * | |
431 | save_inferior_pid () | |
432 | { | |
c5aa993b | 433 | return make_cleanup (restore_inferior_pid, (void *) inferior_pid); |
c906108c SS |
434 | } |
435 | ||
436 | static void | |
437 | restore_inferior_pid (pid) | |
7a292a7a | 438 | void *pid; |
c906108c | 439 | { |
7a292a7a | 440 | inferior_pid = (int) pid; |
c906108c SS |
441 | } |
442 | \f | |
443 | ||
444 | /* Most target vector functions from here on actually just pass through to | |
445 | procfs.c, as they don't need to do anything specific for threads. */ | |
446 | ||
447 | ||
448 | /* ARGSUSED */ | |
449 | static void | |
450 | sol_thread_open (arg, from_tty) | |
451 | char *arg; | |
452 | int from_tty; | |
453 | { | |
454 | procfs_ops.to_open (arg, from_tty); | |
455 | } | |
456 | ||
457 | /* Attach to process PID, then initialize for debugging it | |
458 | and wait for the trace-trap that results from attaching. */ | |
459 | ||
460 | static void | |
461 | sol_thread_attach (args, from_tty) | |
462 | char *args; | |
463 | int from_tty; | |
464 | { | |
465 | procfs_ops.to_attach (args, from_tty); | |
466 | /* Must get symbols from solibs before libthread_db can run! */ | |
c5aa993b | 467 | SOLIB_ADD ((char *) 0, from_tty, (struct target_ops *) 0); |
c906108c SS |
468 | if (sol_thread_active) |
469 | { | |
470 | printf_filtered ("sol-thread active.\n"); | |
c5aa993b | 471 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
472 | push_target (&sol_thread_ops); |
473 | inferior_pid = lwp_to_thread (inferior_pid); | |
474 | if (inferior_pid == -1) | |
475 | inferior_pid = main_ph.pid; | |
476 | else | |
477 | add_thread (inferior_pid); | |
478 | } | |
479 | /* XXX - might want to iterate over all the threads and register them. */ | |
480 | } | |
481 | ||
482 | /* Take a program previously attached to and detaches it. | |
483 | The program resumes execution and will no longer stop | |
484 | on signals, etc. We'd better not have left any breakpoints | |
485 | in the program or it'll die when it hits one. For this | |
486 | to work, it may be necessary for the process to have been | |
487 | previously attached. It *might* work if the program was | |
488 | started via the normal ptrace (PTRACE_TRACEME). */ | |
489 | ||
490 | static void | |
491 | sol_thread_detach (args, from_tty) | |
492 | char *args; | |
493 | int from_tty; | |
494 | { | |
495 | unpush_target (&sol_thread_ops); | |
496 | procfs_ops.to_detach (args, from_tty); | |
497 | } | |
498 | ||
499 | /* Resume execution of process PID. If STEP is nozero, then | |
500 | just single step it. If SIGNAL is nonzero, restart it with that | |
501 | signal activated. We may have to convert pid from a thread-id to an LWP id | |
502 | for procfs. */ | |
503 | ||
504 | static void | |
505 | sol_thread_resume (pid, step, signo) | |
506 | int pid; | |
507 | int step; | |
508 | enum target_signal signo; | |
509 | { | |
510 | struct cleanup *old_chain; | |
511 | ||
512 | old_chain = save_inferior_pid (); | |
513 | ||
514 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
515 | if (inferior_pid == -1) | |
516 | inferior_pid = procfs_first_available (); | |
517 | ||
518 | if (pid != -1) | |
519 | { | |
520 | int save_pid = pid; | |
521 | ||
522 | pid = thread_to_lwp (pid, -2); | |
523 | if (pid == -2) /* Inactive thread */ | |
524 | error ("This version of Solaris can't start inactive threads."); | |
525 | if (info_verbose && pid == -1) | |
c5aa993b | 526 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
527 | GET_THREAD (save_pid)); |
528 | } | |
529 | ||
530 | procfs_ops.to_resume (pid, step, signo); | |
531 | ||
532 | do_cleanups (old_chain); | |
533 | } | |
534 | ||
535 | /* Wait for any threads to stop. We may have to convert PID from a thread id | |
536 | to a LWP id, and vice versa on the way out. */ | |
537 | ||
538 | static int | |
539 | sol_thread_wait (pid, ourstatus) | |
540 | int pid; | |
541 | struct target_waitstatus *ourstatus; | |
542 | { | |
543 | int rtnval; | |
544 | int save_pid; | |
545 | struct cleanup *old_chain; | |
546 | ||
547 | save_pid = inferior_pid; | |
548 | old_chain = save_inferior_pid (); | |
549 | ||
550 | inferior_pid = thread_to_lwp (inferior_pid, main_ph.pid); | |
551 | if (inferior_pid == -1) | |
552 | inferior_pid = procfs_first_available (); | |
553 | ||
554 | if (pid != -1) | |
555 | { | |
556 | int save_pid = pid; | |
557 | ||
558 | pid = thread_to_lwp (pid, -2); | |
559 | if (pid == -2) /* Inactive thread */ | |
560 | error ("This version of Solaris can't start inactive threads."); | |
561 | if (info_verbose && pid == -1) | |
c5aa993b | 562 | warning ("Specified thread %d seems to have terminated", |
c906108c SS |
563 | GET_THREAD (save_pid)); |
564 | } | |
565 | ||
566 | rtnval = procfs_ops.to_wait (pid, ourstatus); | |
567 | ||
568 | if (ourstatus->kind != TARGET_WAITKIND_EXITED) | |
569 | { | |
570 | /* Map the LWP of interest back to the appropriate thread ID */ | |
571 | rtnval = lwp_to_thread (rtnval); | |
572 | if (rtnval == -1) | |
573 | rtnval = save_pid; | |
574 | ||
575 | /* See if we have a new thread */ | |
576 | if (is_thread (rtnval) | |
577 | && rtnval != save_pid | |
578 | && !in_thread_list (rtnval)) | |
579 | { | |
580 | printf_filtered ("[New %s]\n", target_pid_to_str (rtnval)); | |
581 | add_thread (rtnval); | |
582 | } | |
583 | } | |
584 | ||
585 | /* During process initialization, we may get here without the thread package | |
586 | being initialized, since that can only happen after we've found the shared | |
587 | libs. */ | |
588 | ||
589 | do_cleanups (old_chain); | |
590 | ||
591 | return rtnval; | |
592 | } | |
593 | ||
594 | static void | |
595 | sol_thread_fetch_registers (regno) | |
596 | int regno; | |
597 | { | |
598 | thread_t thread; | |
599 | td_thrhandle_t thandle; | |
600 | td_err_e val; | |
601 | prgregset_t gregset; | |
602 | prfpregset_t fpregset; | |
603 | #if 0 | |
604 | int xregsize; | |
605 | caddr_t xregset; | |
606 | #endif | |
607 | ||
608 | if (!is_thread (inferior_pid)) | |
c5aa993b | 609 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
610 | if (target_has_execution) |
611 | procfs_ops.to_fetch_registers (regno); | |
612 | else | |
613 | orig_core_ops.to_fetch_registers (regno); | |
614 | return; | |
615 | } | |
616 | ||
617 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
618 | ||
619 | thread = GET_THREAD (inferior_pid); | |
620 | ||
621 | if (thread == 0) | |
622 | error ("sol_thread_fetch_registers: thread == 0"); | |
623 | ||
624 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
625 | if (val != TD_OK) | |
626 | error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s", | |
627 | td_err_string (val)); | |
628 | ||
629 | /* Get the integer regs */ | |
630 | ||
631 | val = p_td_thr_getgregs (&thandle, gregset); | |
632 | if (val != TD_OK | |
633 | && val != TD_PARTIALREG) | |
634 | error ("sol_thread_fetch_registers: td_thr_getgregs %s", | |
635 | td_err_string (val)); | |
636 | ||
637 | /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp | |
638 | are saved (by a thread context switch). */ | |
639 | ||
640 | /* And, now the fp regs */ | |
641 | ||
642 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
643 | if (val != TD_OK | |
644 | && val != TD_NOFPREGS) | |
645 | error ("sol_thread_fetch_registers: td_thr_getfpregs %s", | |
646 | td_err_string (val)); | |
647 | ||
648 | /* Note that we must call supply_{g fp}regset *after* calling the td routines | |
649 | because the td routines call ps_lget* which affect the values stored in the | |
650 | registers array. */ | |
651 | ||
652 | supply_gregset (gregset); | |
653 | supply_fpregset (&fpregset); | |
654 | ||
655 | #if 0 | |
656 | /* thread_db doesn't seem to handle this right */ | |
657 | val = td_thr_getxregsize (&thandle, &xregsize); | |
658 | if (val != TD_OK && val != TD_NOXREGS) | |
659 | error ("sol_thread_fetch_registers: td_thr_getxregsize %s", | |
660 | td_err_string (val)); | |
661 | ||
662 | if (val == TD_OK) | |
663 | { | |
664 | xregset = alloca (xregsize); | |
665 | val = td_thr_getxregs (&thandle, xregset); | |
666 | if (val != TD_OK) | |
667 | error ("sol_thread_fetch_registers: td_thr_getxregs %s", | |
668 | td_err_string (val)); | |
669 | } | |
670 | #endif | |
671 | } | |
672 | ||
673 | static void | |
674 | sol_thread_store_registers (regno) | |
675 | int regno; | |
676 | { | |
677 | thread_t thread; | |
678 | td_thrhandle_t thandle; | |
679 | td_err_e val; | |
680 | prgregset_t regset; | |
681 | prfpregset_t fpregset; | |
682 | #if 0 | |
683 | int xregsize; | |
684 | caddr_t xregset; | |
685 | #endif | |
686 | ||
687 | if (!is_thread (inferior_pid)) | |
c5aa993b | 688 | { /* LWP: pass the request on to procfs.c */ |
c906108c SS |
689 | procfs_ops.to_store_registers (regno); |
690 | return; | |
691 | } | |
692 | ||
693 | /* Solaris thread: convert inferior_pid into a td_thrhandle_t */ | |
694 | ||
695 | thread = GET_THREAD (inferior_pid); | |
696 | ||
697 | val = p_td_ta_map_id2thr (main_ta, thread, &thandle); | |
698 | if (val != TD_OK) | |
699 | error ("sol_thread_store_registers: td_ta_map_id2thr %s", | |
700 | td_err_string (val)); | |
701 | ||
702 | if (regno != -1) | |
703 | { /* Not writing all the regs */ | |
704 | /* save new register value */ | |
705 | char old_value[REGISTER_SIZE]; | |
c5aa993b | 706 | memcpy (old_value, ®isters[REGISTER_BYTE (regno)], REGISTER_SIZE); |
c906108c SS |
707 | |
708 | val = p_td_thr_getgregs (&thandle, regset); | |
709 | if (val != TD_OK) | |
710 | error ("sol_thread_store_registers: td_thr_getgregs %s", | |
711 | td_err_string (val)); | |
712 | val = p_td_thr_getfpregs (&thandle, &fpregset); | |
713 | if (val != TD_OK) | |
714 | error ("sol_thread_store_registers: td_thr_getfpregs %s", | |
715 | td_err_string (val)); | |
716 | ||
717 | /* restore new register value */ | |
c5aa993b | 718 | memcpy (®isters[REGISTER_BYTE (regno)], old_value, REGISTER_SIZE); |
c906108c SS |
719 | |
720 | #if 0 | |
721 | /* thread_db doesn't seem to handle this right */ | |
722 | val = td_thr_getxregsize (&thandle, &xregsize); | |
723 | if (val != TD_OK && val != TD_NOXREGS) | |
724 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
725 | td_err_string (val)); | |
726 | ||
727 | if (val == TD_OK) | |
728 | { | |
729 | xregset = alloca (xregsize); | |
730 | val = td_thr_getxregs (&thandle, xregset); | |
731 | if (val != TD_OK) | |
732 | error ("sol_thread_store_registers: td_thr_getxregs %s", | |
733 | td_err_string (val)); | |
734 | } | |
735 | #endif | |
736 | } | |
737 | ||
738 | fill_gregset (regset, regno); | |
739 | fill_fpregset (&fpregset, regno); | |
740 | ||
741 | val = p_td_thr_setgregs (&thandle, regset); | |
742 | if (val != TD_OK) | |
743 | error ("sol_thread_store_registers: td_thr_setgregs %s", | |
744 | td_err_string (val)); | |
745 | val = p_td_thr_setfpregs (&thandle, &fpregset); | |
746 | if (val != TD_OK) | |
747 | error ("sol_thread_store_registers: td_thr_setfpregs %s", | |
748 | td_err_string (val)); | |
749 | ||
750 | #if 0 | |
751 | /* thread_db doesn't seem to handle this right */ | |
752 | val = td_thr_getxregsize (&thandle, &xregsize); | |
753 | if (val != TD_OK && val != TD_NOXREGS) | |
754 | error ("sol_thread_store_registers: td_thr_getxregsize %s", | |
755 | td_err_string (val)); | |
756 | ||
757 | /* Should probably do something about writing the xregs here, but what are | |
758 | they? */ | |
759 | #endif | |
760 | } | |
761 | ||
762 | /* Get ready to modify the registers array. On machines which store | |
763 | individual registers, this doesn't need to do anything. On machines | |
764 | which store all the registers in one fell swoop, this makes sure | |
765 | that registers contains all the registers from the program being | |
766 | debugged. */ | |
767 | ||
768 | static void | |
769 | sol_thread_prepare_to_store () | |
770 | { | |
771 | procfs_ops.to_prepare_to_store (); | |
772 | } | |
773 | ||
774 | static int | |
775 | sol_thread_xfer_memory (memaddr, myaddr, len, dowrite, target) | |
776 | CORE_ADDR memaddr; | |
777 | char *myaddr; | |
778 | int len; | |
779 | int dowrite; | |
c5aa993b | 780 | struct target_ops *target; /* ignored */ |
c906108c SS |
781 | { |
782 | int retval; | |
783 | struct cleanup *old_chain; | |
784 | ||
785 | old_chain = save_inferior_pid (); | |
786 | ||
c5aa993b | 787 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
788 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
789 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
790 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
791 | ||
792 | if (target_has_execution) | |
793 | retval = procfs_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target); | |
794 | else | |
795 | retval = orig_core_ops.to_xfer_memory (memaddr, myaddr, len, | |
796 | dowrite, target); | |
797 | ||
798 | do_cleanups (old_chain); | |
799 | ||
800 | return retval; | |
801 | } | |
802 | ||
803 | /* Print status information about what we're accessing. */ | |
804 | ||
805 | static void | |
806 | sol_thread_files_info (ignore) | |
807 | struct target_ops *ignore; | |
808 | { | |
809 | procfs_ops.to_files_info (ignore); | |
810 | } | |
811 | ||
812 | static void | |
813 | sol_thread_kill_inferior () | |
814 | { | |
815 | procfs_ops.to_kill (); | |
816 | } | |
817 | ||
818 | static void | |
819 | sol_thread_notice_signals (pid) | |
820 | int pid; | |
821 | { | |
822 | procfs_ops.to_notice_signals (PIDGET (pid)); | |
823 | } | |
824 | ||
825 | /* Fork an inferior process, and start debugging it with /proc. */ | |
826 | ||
827 | static void | |
828 | sol_thread_create_inferior (exec_file, allargs, env) | |
829 | char *exec_file; | |
830 | char *allargs; | |
831 | char **env; | |
832 | { | |
833 | procfs_ops.to_create_inferior (exec_file, allargs, env); | |
834 | ||
835 | if (sol_thread_active && inferior_pid != 0) | |
836 | { | |
c5aa993b | 837 | main_ph.pid = inferior_pid; /* Save for xfer_memory */ |
c906108c SS |
838 | |
839 | push_target (&sol_thread_ops); | |
840 | ||
841 | inferior_pid = lwp_to_thread (inferior_pid); | |
842 | if (inferior_pid == -1) | |
843 | inferior_pid = main_ph.pid; | |
844 | ||
845 | add_thread (inferior_pid); | |
846 | } | |
847 | } | |
848 | ||
849 | /* This routine is called whenever a new symbol table is read in, or when all | |
850 | symbol tables are removed. libthread_db can only be initialized when it | |
851 | finds the right variables in libthread.so. Since it's a shared library, | |
852 | those variables don't show up until the library gets mapped and the symbol | |
853 | table is read in. */ | |
854 | ||
855 | void | |
856 | sol_thread_new_objfile (objfile) | |
857 | struct objfile *objfile; | |
858 | { | |
859 | td_err_e val; | |
860 | ||
861 | if (!objfile) | |
862 | { | |
863 | sol_thread_active = 0; | |
864 | ||
865 | return; | |
866 | } | |
867 | ||
868 | /* don't do anything if init failed to resolve the libthread_db library */ | |
869 | if (!procfs_suppress_run) | |
870 | return; | |
871 | ||
872 | /* Now, initialize the thread debugging library. This needs to be done after | |
873 | the shared libraries are located because it needs information from the | |
874 | user's thread library. */ | |
875 | ||
876 | val = p_td_init (); | |
877 | if (val != TD_OK) | |
878 | error ("target_new_objfile: td_init: %s", td_err_string (val)); | |
879 | ||
880 | val = p_td_ta_new (&main_ph, &main_ta); | |
881 | if (val == TD_NOLIBTHREAD) | |
882 | return; | |
883 | else if (val != TD_OK) | |
884 | error ("target_new_objfile: td_ta_new: %s", td_err_string (val)); | |
885 | ||
886 | sol_thread_active = 1; | |
887 | } | |
888 | ||
889 | /* Clean up after the inferior dies. */ | |
890 | ||
891 | static void | |
892 | sol_thread_mourn_inferior () | |
893 | { | |
894 | unpush_target (&sol_thread_ops); | |
895 | procfs_ops.to_mourn_inferior (); | |
896 | } | |
897 | ||
898 | /* Mark our target-struct as eligible for stray "run" and "attach" commands. */ | |
899 | ||
900 | static int | |
901 | sol_thread_can_run () | |
902 | { | |
903 | return procfs_suppress_run; | |
904 | } | |
905 | ||
906 | /* | |
907 | ||
c5aa993b | 908 | LOCAL FUNCTION |
c906108c | 909 | |
c5aa993b | 910 | sol_thread_alive - test thread for "aliveness" |
c906108c | 911 | |
c5aa993b | 912 | SYNOPSIS |
c906108c | 913 | |
c5aa993b | 914 | static bool sol_thread_alive (int pid); |
c906108c | 915 | |
c5aa993b | 916 | DESCRIPTION |
c906108c | 917 | |
c5aa993b | 918 | returns true if thread still active in inferior. |
c906108c SS |
919 | |
920 | */ | |
921 | ||
922 | static int | |
923 | sol_thread_alive (pid) | |
924 | int pid; | |
925 | { | |
926 | if (is_thread (pid)) /* non-kernel thread */ | |
927 | { | |
928 | td_err_e val; | |
929 | td_thrhandle_t th; | |
930 | ||
931 | pid = GET_THREAD (pid); | |
932 | if ((val = p_td_ta_map_id2thr (main_ta, pid, &th)) != TD_OK) | |
c5aa993b | 933 | return 0; /* thread not found */ |
c906108c | 934 | if ((val = p_td_thr_validate (&th)) != TD_OK) |
c5aa993b JM |
935 | return 0; /* thread not valid */ |
936 | return 1; /* known thread: return true */ | |
c906108c | 937 | } |
c5aa993b JM |
938 | else |
939 | /* kernel thread (LWP): let procfs test it */ | |
c906108c SS |
940 | { |
941 | if (target_has_execution) | |
942 | return procfs_ops.to_thread_alive (pid); | |
943 | else | |
944 | return orig_core_ops.to_thread_alive (pid); | |
945 | } | |
946 | } | |
947 | ||
948 | static void | |
949 | sol_thread_stop () | |
950 | { | |
951 | procfs_ops.to_stop (); | |
952 | } | |
953 | \f | |
954 | /* These routines implement the lower half of the thread_db interface. Ie: the | |
955 | ps_* routines. */ | |
956 | ||
957 | /* Various versions of <proc_service.h> have slightly | |
958 | different function prototypes. In particular, we have | |
959 | ||
c5aa993b JM |
960 | NEWER OLDER |
961 | struct ps_prochandle * const struct ps_prochandle * | |
962 | void* char* | |
963 | const void* char* | |
964 | int size_t | |
c906108c SS |
965 | |
966 | Which one you have depends on solaris version and what | |
967 | patches you've applied. On the theory that there are | |
968 | only two major variants, we have configure check the | |
969 | prototype of ps_pdwrite (), and use that info to make | |
970 | appropriate typedefs here. */ | |
971 | ||
972 | #ifdef PROC_SERVICE_IS_OLD | |
c5aa993b JM |
973 | typedef const struct ps_prochandle *gdb_ps_prochandle_t; |
974 | typedef char *gdb_ps_read_buf_t; | |
975 | typedef char *gdb_ps_write_buf_t; | |
c906108c SS |
976 | typedef int gdb_ps_size_t; |
977 | #else | |
c5aa993b JM |
978 | typedef struct ps_prochandle *gdb_ps_prochandle_t; |
979 | typedef void *gdb_ps_read_buf_t; | |
980 | typedef const void *gdb_ps_write_buf_t; | |
c906108c SS |
981 | typedef size_t gdb_ps_size_t; |
982 | #endif | |
983 | ||
984 | ||
985 | /* The next four routines are called by thread_db to tell us to stop and stop | |
986 | a particular process or lwp. Since GDB ensures that these are all stopped | |
987 | by the time we call anything in thread_db, these routines need to do | |
988 | nothing. */ | |
989 | ||
990 | ps_err_e | |
991 | ps_pstop (gdb_ps_prochandle_t ph) | |
992 | { | |
993 | return PS_OK; | |
994 | } | |
995 | ||
996 | ps_err_e | |
997 | ps_pcontinue (gdb_ps_prochandle_t ph) | |
998 | { | |
999 | return PS_OK; | |
1000 | } | |
1001 | ||
1002 | ps_err_e | |
1003 | ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1004 | { | |
1005 | return PS_OK; | |
1006 | } | |
1007 | ||
1008 | ps_err_e | |
1009 | ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid) | |
1010 | { | |
1011 | return PS_OK; | |
1012 | } | |
1013 | ||
1014 | ps_err_e | |
1015 | ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *ld_object_name, | |
c5aa993b | 1016 | const char *ld_symbol_name, paddr_t * ld_symbol_addr) |
c906108c SS |
1017 | { |
1018 | struct minimal_symbol *ms; | |
1019 | ||
1020 | ms = lookup_minimal_symbol (ld_symbol_name, NULL, NULL); | |
1021 | ||
1022 | if (!ms) | |
1023 | return PS_NOSYM; | |
1024 | ||
1025 | *ld_symbol_addr = SYMBOL_VALUE_ADDRESS (ms); | |
1026 | ||
1027 | return PS_OK; | |
1028 | } | |
1029 | ||
1030 | /* Common routine for reading and writing memory. */ | |
1031 | ||
1032 | static ps_err_e | |
1033 | rw_common (int dowrite, const struct ps_prochandle *ph, paddr_t addr, | |
1034 | char *buf, int size) | |
1035 | { | |
1036 | struct cleanup *old_chain; | |
1037 | ||
1038 | old_chain = save_inferior_pid (); | |
1039 | ||
c5aa993b | 1040 | if (is_thread (inferior_pid) || /* A thread */ |
c906108c SS |
1041 | !target_thread_alive (inferior_pid)) /* An lwp, but not alive */ |
1042 | inferior_pid = procfs_first_available (); /* Find any live lwp. */ | |
1043 | /* Note: don't need to call switch_to_thread; we're just reading memory. */ | |
1044 | ||
1045 | while (size > 0) | |
1046 | { | |
1047 | int cc; | |
1048 | ||
1049 | if (target_has_execution) | |
1050 | cc = procfs_ops.to_xfer_memory (addr, buf, size, dowrite, &procfs_ops); | |
1051 | else | |
1052 | cc = orig_core_ops.to_xfer_memory (addr, buf, size, dowrite, &core_ops); | |
1053 | ||
1054 | if (cc < 0) | |
1055 | { | |
1056 | if (dowrite == 0) | |
1057 | print_sys_errmsg ("rw_common (): read", errno); | |
1058 | else | |
1059 | print_sys_errmsg ("rw_common (): write", errno); | |
1060 | ||
1061 | do_cleanups (old_chain); | |
1062 | ||
1063 | return PS_ERR; | |
1064 | } | |
1065 | size -= cc; | |
1066 | buf += cc; | |
1067 | } | |
1068 | ||
1069 | do_cleanups (old_chain); | |
1070 | ||
1071 | return PS_OK; | |
1072 | } | |
1073 | ||
1074 | ps_err_e | |
1075 | ps_pdread (gdb_ps_prochandle_t ph, paddr_t addr, | |
1076 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) | |
1077 | { | |
1078 | return rw_common (0, ph, addr, buf, size); | |
1079 | } | |
1080 | ||
1081 | ps_err_e | |
1082 | ps_pdwrite (gdb_ps_prochandle_t ph, paddr_t addr, | |
1083 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) | |
1084 | { | |
c5aa993b | 1085 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1086 | } |
1087 | ||
1088 | ps_err_e | |
1089 | ps_ptread (gdb_ps_prochandle_t ph, paddr_t addr, | |
1090 | gdb_ps_read_buf_t buf, gdb_ps_size_t size) | |
1091 | { | |
1092 | return rw_common (0, ph, addr, buf, size); | |
1093 | } | |
1094 | ||
1095 | ps_err_e | |
1096 | ps_ptwrite (gdb_ps_prochandle_t ph, paddr_t addr, | |
1097 | gdb_ps_write_buf_t buf, gdb_ps_size_t size) | |
1098 | { | |
c5aa993b | 1099 | return rw_common (1, ph, addr, (char *) buf, size); |
c906108c SS |
1100 | } |
1101 | ||
1102 | /* Get integer regs */ | |
1103 | ||
1104 | ps_err_e | |
1105 | ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1106 | prgregset_t gregset) | |
1107 | { | |
1108 | struct cleanup *old_chain; | |
1109 | ||
1110 | old_chain = save_inferior_pid (); | |
1111 | ||
1112 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1113 | |
c906108c SS |
1114 | if (target_has_execution) |
1115 | procfs_ops.to_fetch_registers (-1); | |
1116 | else | |
1117 | orig_core_ops.to_fetch_registers (-1); | |
1118 | fill_gregset (gregset, -1); | |
1119 | ||
1120 | do_cleanups (old_chain); | |
1121 | ||
1122 | return PS_OK; | |
1123 | } | |
1124 | ||
1125 | /* Set integer regs */ | |
1126 | ||
1127 | ps_err_e | |
1128 | ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1129 | const prgregset_t gregset) | |
1130 | { | |
1131 | struct cleanup *old_chain; | |
1132 | ||
1133 | old_chain = save_inferior_pid (); | |
1134 | ||
1135 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1136 | |
c906108c SS |
1137 | supply_gregset (gregset); |
1138 | if (target_has_execution) | |
1139 | procfs_ops.to_store_registers (-1); | |
1140 | else | |
1141 | orig_core_ops.to_store_registers (-1); | |
1142 | ||
1143 | do_cleanups (old_chain); | |
1144 | ||
1145 | return PS_OK; | |
1146 | } | |
1147 | ||
1148 | void | |
c5aa993b | 1149 | ps_plog (const char *fmt,...) |
c906108c SS |
1150 | { |
1151 | va_list args; | |
1152 | ||
1153 | va_start (args, fmt); | |
1154 | ||
1155 | vfprintf_filtered (gdb_stderr, fmt, args); | |
1156 | } | |
1157 | ||
1158 | /* Get size of extra register set. Currently a noop. */ | |
1159 | ||
1160 | ps_err_e | |
1161 | ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize) | |
1162 | { | |
1163 | #if 0 | |
1164 | int lwp_fd; | |
1165 | int regsize; | |
1166 | ps_err_e val; | |
1167 | ||
1168 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1169 | if (val != PS_OK) | |
1170 | return val; | |
1171 | ||
1172 | if (ioctl (lwp_fd, PIOCGXREGSIZE, ®size)) | |
1173 | { | |
1174 | if (errno == EINVAL) | |
1175 | return PS_NOFREGS; /* XXX Wrong code, but this is the closest | |
1176 | thing in proc_service.h */ | |
1177 | ||
1178 | print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno); | |
1179 | return PS_ERR; | |
1180 | } | |
1181 | #endif | |
1182 | ||
1183 | return PS_OK; | |
1184 | } | |
1185 | ||
1186 | /* Get extra register set. Currently a noop. */ | |
1187 | ||
1188 | ps_err_e | |
1189 | ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1190 | { | |
1191 | #if 0 | |
1192 | int lwp_fd; | |
1193 | ps_err_e val; | |
1194 | ||
1195 | val = get_lwp_fd (ph, lwpid, &lwp_fd); | |
1196 | if (val != PS_OK) | |
1197 | return val; | |
1198 | ||
1199 | if (ioctl (lwp_fd, PIOCGXREG, xregset)) | |
1200 | { | |
1201 | print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno); | |
1202 | return PS_ERR; | |
1203 | } | |
1204 | #endif | |
1205 | ||
1206 | return PS_OK; | |
1207 | } | |
1208 | ||
1209 | /* Set extra register set. Currently a noop. */ | |
1210 | ||
1211 | ps_err_e | |
1212 | ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset) | |
1213 | { | |
1214 | #if 0 | |
1215 | int lwp_fd; | |
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, PIOCSXREG, xregset)) | |
1223 | { | |
1224 | print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno); | |
1225 | return PS_ERR; | |
1226 | } | |
1227 | #endif | |
1228 | ||
1229 | return PS_OK; | |
1230 | } | |
1231 | ||
1232 | /* Get floating-point regs. */ | |
1233 | ||
1234 | ps_err_e | |
1235 | ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1236 | prfpregset_t * fpregset) |
c906108c SS |
1237 | { |
1238 | struct cleanup *old_chain; | |
1239 | ||
1240 | old_chain = save_inferior_pid (); | |
1241 | ||
1242 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
1243 | ||
1244 | if (target_has_execution) | |
1245 | procfs_ops.to_fetch_registers (-1); | |
1246 | else | |
1247 | orig_core_ops.to_fetch_registers (-1); | |
1248 | fill_fpregset (fpregset, -1); | |
1249 | ||
1250 | do_cleanups (old_chain); | |
1251 | ||
1252 | return PS_OK; | |
1253 | } | |
1254 | ||
1255 | /* Set floating-point regs. */ | |
1256 | ||
1257 | ps_err_e | |
1258 | ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
c5aa993b | 1259 | const prfpregset_t * fpregset) |
c906108c SS |
1260 | { |
1261 | struct cleanup *old_chain; | |
1262 | ||
1263 | old_chain = save_inferior_pid (); | |
1264 | ||
1265 | inferior_pid = BUILD_LWP (lwpid, PIDGET (inferior_pid)); | |
c5aa993b | 1266 | |
c906108c SS |
1267 | supply_fpregset (fpregset); |
1268 | if (target_has_execution) | |
1269 | procfs_ops.to_store_registers (-1); | |
1270 | else | |
1271 | orig_core_ops.to_store_registers (-1); | |
1272 | ||
1273 | do_cleanups (old_chain); | |
1274 | ||
1275 | return PS_OK; | |
1276 | } | |
1277 | ||
1278 | #ifdef TM_I386SOL2_H | |
1279 | ||
1280 | /* Get local descriptor table. */ | |
1281 | ||
1282 | #include <sys/procfs.h> | |
1283 | #include <sys/reg.h> | |
1284 | #include <sys/sysi86.h> | |
1285 | ||
1286 | static int nldt_allocated = 0; | |
1287 | static struct ssd *ldt_bufp = NULL; | |
1288 | ||
1289 | ps_err_e | |
1290 | ps_lgetLDT (gdb_ps_prochandle_t ph, lwpid_t lwpid, | |
1291 | struct ssd *pldt) | |
1292 | { | |
1293 | gregset_t gregset; | |
1294 | int lwp_fd; | |
1295 | ps_err_e val; | |
1296 | int nldt; | |
1297 | int i; | |
1298 | ||
1299 | /* Get procfs file descriptor for the LWP. */ | |
1300 | lwp_fd = procfs_get_pid_fd (BUILD_LWP (lwpid, PIDGET (inferior_pid))); | |
1301 | if (lwp_fd < 0) | |
1302 | return PS_BADLID; | |
1303 | ||
1304 | /* Fetch registers und LDT descriptors. */ | |
1305 | if (ioctl (lwp_fd, PIOCGREG, &gregset) == -1) | |
1306 | return PS_ERR; | |
1307 | ||
1308 | if (ioctl (lwp_fd, PIOCNLDT, &nldt) == -1) | |
1309 | return PS_ERR; | |
1310 | ||
1311 | if (nldt_allocated < nldt) | |
1312 | { | |
1313 | ldt_bufp | |
1314 | = (struct ssd *) xrealloc (ldt_bufp, (nldt + 1) * sizeof (struct ssd)); | |
1315 | nldt_allocated = nldt; | |
1316 | } | |
1317 | ||
1318 | if (ioctl (lwp_fd, PIOCLDT, ldt_bufp) == -1) | |
1319 | return PS_ERR; | |
1320 | ||
1321 | /* Search LDT for the LWP via register GS. */ | |
1322 | for (i = 0; i < nldt; i++) | |
1323 | { | |
1324 | if (ldt_bufp[i].sel == (gregset[GS] & 0xffff)) | |
1325 | { | |
1326 | *pldt = ldt_bufp[i]; | |
1327 | return PS_OK; | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | /* LDT not found. */ | |
1332 | return PS_ERR; | |
c5aa993b | 1333 | } |
c906108c SS |
1334 | #endif /* TM_I386SOL2_H */ |
1335 | \f | |
1336 | /* Convert a pid to printable form. */ | |
1337 | ||
1338 | char * | |
1339 | solaris_pid_to_str (pid) | |
1340 | int pid; | |
1341 | { | |
1342 | static char buf[100]; | |
1343 | ||
1344 | /* in case init failed to resolve the libthread_db library */ | |
1345 | if (!procfs_suppress_run) | |
1346 | return procfs_pid_to_str (pid); | |
1347 | ||
1348 | if (is_thread (pid)) | |
1349 | { | |
1350 | int lwp; | |
1351 | ||
1352 | lwp = thread_to_lwp (pid, -2); | |
1353 | ||
1354 | if (lwp == -1) | |
1355 | sprintf (buf, "Thread %d (defunct)", GET_THREAD (pid)); | |
1356 | else if (lwp != -2) | |
1357 | sprintf (buf, "Thread %d (LWP %d)", GET_THREAD (pid), GET_LWP (lwp)); | |
1358 | else | |
1359 | sprintf (buf, "Thread %d ", GET_THREAD (pid)); | |
1360 | } | |
1361 | else if (GET_LWP (pid) != 0) | |
1362 | sprintf (buf, "LWP %d ", GET_LWP (pid)); | |
1363 | else | |
1364 | sprintf (buf, "process %d ", PIDGET (pid)); | |
1365 | ||
1366 | return buf; | |
1367 | } | |
1368 | \f | |
1369 | ||
1370 | /* Worker bee for find_new_threads | |
1371 | Callback function that gets called once per USER thread (i.e., not | |
1372 | kernel) thread. */ | |
1373 | ||
1374 | static int | |
c5aa993b | 1375 | sol_find_new_threads_callback (th, ignored) |
c906108c SS |
1376 | const td_thrhandle_t *th; |
1377 | void *ignored; | |
1378 | { | |
1379 | td_err_e retval; | |
1380 | td_thrinfo_t ti; | |
1381 | int pid; | |
1382 | ||
c5aa993b | 1383 | if ((retval = p_td_thr_get_info (th, &ti)) != TD_OK) |
c906108c SS |
1384 | { |
1385 | return -1; | |
1386 | } | |
c5aa993b JM |
1387 | pid = BUILD_THREAD (ti.ti_tid, PIDGET (inferior_pid)); |
1388 | if (!in_thread_list (pid)) | |
1389 | add_thread (pid); | |
c906108c SS |
1390 | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | void | |
b83266a0 | 1395 | sol_find_new_threads () |
c906108c SS |
1396 | { |
1397 | /* don't do anything if init failed to resolve the libthread_db library */ | |
1398 | if (!procfs_suppress_run) | |
1399 | return; | |
1400 | ||
1401 | if (inferior_pid == -1) | |
1402 | { | |
c5aa993b | 1403 | printf_filtered ("No process.\n"); |
c906108c SS |
1404 | return; |
1405 | } | |
c5aa993b | 1406 | p_td_ta_thr_iter (main_ta, sol_find_new_threads_callback, (void *) 0, |
c906108c SS |
1407 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1408 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1409 | } | |
1410 | ||
1411 | static void | |
1412 | sol_core_open (filename, from_tty) | |
1413 | char *filename; | |
1414 | int from_tty; | |
1415 | { | |
1416 | orig_core_ops.to_open (filename, from_tty); | |
1417 | } | |
1418 | ||
1419 | static void | |
1420 | sol_core_close (quitting) | |
1421 | int quitting; | |
1422 | { | |
1423 | orig_core_ops.to_close (quitting); | |
1424 | } | |
1425 | ||
1426 | static void | |
1427 | sol_core_detach (args, from_tty) | |
1428 | char *args; | |
1429 | int from_tty; | |
1430 | { | |
1431 | unpush_target (&core_ops); | |
1432 | orig_core_ops.to_detach (args, from_tty); | |
1433 | } | |
1434 | ||
1435 | static void | |
1436 | sol_core_files_info (t) | |
1437 | struct target_ops *t; | |
1438 | { | |
1439 | orig_core_ops.to_files_info (t); | |
1440 | } | |
1441 | ||
c906108c SS |
1442 | /* Worker bee for info sol-thread command. This is a callback function that |
1443 | gets called once for each Solaris thread (ie. not kernel thread) in the | |
1444 | inferior. Print anything interesting that we can think of. */ | |
1445 | ||
c5aa993b | 1446 | static int |
c906108c SS |
1447 | info_cb (th, s) |
1448 | const td_thrhandle_t *th; | |
1449 | void *s; | |
1450 | { | |
1451 | td_err_e ret; | |
1452 | td_thrinfo_t ti; | |
1453 | struct minimal_symbol *msym; | |
1454 | ||
1455 | if ((ret = p_td_thr_get_info (th, &ti)) == TD_OK) | |
1456 | { | |
c5aa993b JM |
1457 | printf_filtered ("%s thread #%d, lwp %d, ", |
1458 | ti.ti_type == TD_THR_SYSTEM ? "system" : "user ", | |
c906108c | 1459 | ti.ti_tid, ti.ti_lid); |
c5aa993b JM |
1460 | switch (ti.ti_state) |
1461 | { | |
c906108c | 1462 | default: |
c5aa993b JM |
1463 | case TD_THR_UNKNOWN: |
1464 | printf_filtered ("<unknown state>"); | |
1465 | break; | |
1466 | case TD_THR_STOPPED: | |
1467 | printf_filtered ("(stopped)"); | |
1468 | break; | |
1469 | case TD_THR_RUN: | |
1470 | printf_filtered ("(run) "); | |
1471 | break; | |
1472 | case TD_THR_ACTIVE: | |
1473 | printf_filtered ("(active) "); | |
1474 | break; | |
1475 | case TD_THR_ZOMBIE: | |
1476 | printf_filtered ("(zombie) "); | |
1477 | break; | |
1478 | case TD_THR_SLEEP: | |
1479 | printf_filtered ("(asleep) "); | |
1480 | break; | |
1481 | case TD_THR_STOPPED_ASLEEP: | |
1482 | printf_filtered ("(stopped asleep)"); | |
1483 | break; | |
1484 | } | |
c906108c SS |
1485 | /* Print thr_create start function: */ |
1486 | if (ti.ti_startfunc != 0) | |
1487 | if (msym = lookup_minimal_symbol_by_pc (ti.ti_startfunc)) | |
1488 | printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym)); | |
1489 | else | |
1490 | printf_filtered (" startfunc: 0x%08x\n", ti.ti_startfunc); | |
1491 | ||
1492 | /* If thread is asleep, print function that went to sleep: */ | |
1493 | if (ti.ti_state == TD_THR_SLEEP) | |
1494 | if (msym = lookup_minimal_symbol_by_pc (ti.ti_pc)) | |
1495 | printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym)); | |
1496 | else | |
1497 | printf_filtered (" - Sleep func: 0x%08x\n", ti.ti_startfunc); | |
1498 | ||
1499 | /* Wrap up line, if necessary */ | |
1500 | if (ti.ti_state != TD_THR_SLEEP && ti.ti_startfunc == 0) | |
1501 | printf_filtered ("\n"); /* don't you hate counting newlines? */ | |
1502 | } | |
1503 | else | |
1504 | warning ("info sol-thread: failed to get info for thread."); | |
1505 | ||
c5aa993b | 1506 | return 0; |
c906108c SS |
1507 | } |
1508 | ||
1509 | /* List some state about each Solaris user thread in the inferior. */ | |
1510 | ||
1511 | static void | |
1512 | info_solthreads (args, from_tty) | |
1513 | char *args; | |
1514 | int from_tty; | |
1515 | { | |
c5aa993b | 1516 | p_td_ta_thr_iter (main_ta, info_cb, args, |
c906108c SS |
1517 | TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY, |
1518 | TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS); | |
1519 | } | |
c906108c SS |
1520 | |
1521 | static int | |
1522 | ignore (addr, contents) | |
1523 | CORE_ADDR addr; | |
1524 | char *contents; | |
1525 | { | |
1526 | return 0; | |
1527 | } | |
1528 | ||
1529 | ||
1530 | static void | |
1531 | init_sol_thread_ops () | |
1532 | { | |
1533 | sol_thread_ops.to_shortname = "solaris-threads"; | |
1534 | sol_thread_ops.to_longname = "Solaris threads and pthread."; | |
1535 | sol_thread_ops.to_doc = "Solaris threads and pthread support."; | |
1536 | sol_thread_ops.to_open = sol_thread_open; | |
1537 | sol_thread_ops.to_close = 0; | |
1538 | sol_thread_ops.to_attach = sol_thread_attach; | |
1539 | sol_thread_ops.to_detach = sol_thread_detach; | |
1540 | sol_thread_ops.to_resume = sol_thread_resume; | |
1541 | sol_thread_ops.to_wait = sol_thread_wait; | |
1542 | sol_thread_ops.to_fetch_registers = sol_thread_fetch_registers; | |
1543 | sol_thread_ops.to_store_registers = sol_thread_store_registers; | |
1544 | sol_thread_ops.to_prepare_to_store = sol_thread_prepare_to_store; | |
1545 | sol_thread_ops.to_xfer_memory = sol_thread_xfer_memory; | |
1546 | sol_thread_ops.to_files_info = sol_thread_files_info; | |
1547 | sol_thread_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
1548 | sol_thread_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
1549 | sol_thread_ops.to_terminal_init = terminal_init_inferior; | |
1550 | sol_thread_ops.to_terminal_inferior = terminal_inferior; | |
1551 | sol_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output; | |
1552 | sol_thread_ops.to_terminal_ours = terminal_ours; | |
1553 | sol_thread_ops.to_terminal_info = child_terminal_info; | |
1554 | sol_thread_ops.to_kill = sol_thread_kill_inferior; | |
1555 | sol_thread_ops.to_load = 0; | |
1556 | sol_thread_ops.to_lookup_symbol = 0; | |
1557 | sol_thread_ops.to_create_inferior = sol_thread_create_inferior; | |
1558 | sol_thread_ops.to_mourn_inferior = sol_thread_mourn_inferior; | |
1559 | sol_thread_ops.to_can_run = sol_thread_can_run; | |
1560 | sol_thread_ops.to_notice_signals = sol_thread_notice_signals; | |
1561 | sol_thread_ops.to_thread_alive = sol_thread_alive; | |
b83266a0 | 1562 | sol_thread_ops.to_find_new_threads = sol_find_new_threads; |
c906108c SS |
1563 | sol_thread_ops.to_stop = sol_thread_stop; |
1564 | sol_thread_ops.to_stratum = process_stratum; | |
1565 | sol_thread_ops.to_has_all_memory = 1; | |
1566 | sol_thread_ops.to_has_memory = 1; | |
1567 | sol_thread_ops.to_has_stack = 1; | |
1568 | sol_thread_ops.to_has_registers = 1; | |
1569 | sol_thread_ops.to_has_execution = 1; | |
1570 | sol_thread_ops.to_has_thread_control = tc_none; | |
1571 | sol_thread_ops.to_sections = 0; | |
1572 | sol_thread_ops.to_sections_end = 0; | |
1573 | sol_thread_ops.to_magic = OPS_MAGIC; | |
1574 | } | |
1575 | ||
1576 | ||
1577 | static void | |
1578 | init_sol_core_ops () | |
1579 | { | |
c5aa993b JM |
1580 | sol_core_ops.to_shortname = "solaris-core"; |
1581 | sol_core_ops.to_longname = "Solaris core threads and pthread."; | |
1582 | sol_core_ops.to_doc = "Solaris threads and pthread support for core files."; | |
1583 | sol_core_ops.to_open = sol_core_open; | |
1584 | sol_core_ops.to_close = sol_core_close; | |
1585 | sol_core_ops.to_attach = sol_thread_attach; | |
1586 | sol_core_ops.to_detach = sol_core_detach; | |
c906108c | 1587 | /* sol_core_ops.to_resume = 0; */ |
c5aa993b JM |
1588 | /* sol_core_ops.to_wait = 0; */ |
1589 | sol_core_ops.to_fetch_registers = sol_thread_fetch_registers; | |
c906108c SS |
1590 | /* sol_core_ops.to_store_registers = 0; */ |
1591 | /* sol_core_ops.to_prepare_to_store = 0; */ | |
c5aa993b JM |
1592 | sol_core_ops.to_xfer_memory = sol_thread_xfer_memory; |
1593 | sol_core_ops.to_files_info = sol_core_files_info; | |
1594 | sol_core_ops.to_insert_breakpoint = ignore; | |
1595 | sol_core_ops.to_remove_breakpoint = ignore; | |
c906108c SS |
1596 | /* sol_core_ops.to_terminal_init = 0; */ |
1597 | /* sol_core_ops.to_terminal_inferior = 0; */ | |
1598 | /* sol_core_ops.to_terminal_ours_for_output = 0; */ | |
1599 | /* sol_core_ops.to_terminal_ours = 0; */ | |
1600 | /* sol_core_ops.to_terminal_info = 0; */ | |
1601 | /* sol_core_ops.to_kill = 0; */ | |
1602 | /* sol_core_ops.to_load = 0; */ | |
1603 | /* sol_core_ops.to_lookup_symbol = 0; */ | |
c5aa993b JM |
1604 | sol_core_ops.to_create_inferior = sol_thread_create_inferior; |
1605 | sol_core_ops.to_stratum = core_stratum; | |
1606 | sol_core_ops.to_has_all_memory = 0; | |
1607 | sol_core_ops.to_has_memory = 1; | |
1608 | sol_core_ops.to_has_stack = 1; | |
1609 | sol_core_ops.to_has_registers = 1; | |
1610 | sol_core_ops.to_has_execution = 0; | |
1611 | sol_core_ops.to_has_thread_control = tc_none; | |
1612 | sol_core_ops.to_sections = 0; | |
1613 | sol_core_ops.to_sections_end = 0; | |
1614 | sol_core_ops.to_magic = OPS_MAGIC; | |
c906108c SS |
1615 | } |
1616 | ||
1617 | /* we suppress the call to add_target of core_ops in corelow because | |
1618 | if there are two targets in the stratum core_stratum, find_core_target | |
1619 | won't know which one to return. see corelow.c for an additonal | |
1620 | comment on coreops_suppress_target. */ | |
1621 | int coreops_suppress_target = 1; | |
1622 | ||
1623 | void | |
1624 | _initialize_sol_thread () | |
1625 | { | |
1626 | void *dlhandle; | |
1627 | ||
1628 | init_sol_thread_ops (); | |
1629 | init_sol_core_ops (); | |
1630 | ||
1631 | dlhandle = dlopen ("libthread_db.so.1", RTLD_NOW); | |
1632 | if (!dlhandle) | |
1633 | goto die; | |
1634 | ||
1635 | #define resolve(X) \ | |
1636 | if (!(p_##X = dlsym (dlhandle, #X))) \ | |
1637 | goto die; | |
1638 | ||
1639 | resolve (td_log); | |
1640 | resolve (td_ta_new); | |
1641 | resolve (td_ta_delete); | |
1642 | resolve (td_init); | |
1643 | resolve (td_ta_get_ph); | |
1644 | resolve (td_ta_get_nthreads); | |
1645 | resolve (td_ta_tsd_iter); | |
1646 | resolve (td_ta_thr_iter); | |
1647 | resolve (td_thr_validate); | |
1648 | resolve (td_thr_tsd); | |
1649 | resolve (td_thr_get_info); | |
1650 | resolve (td_thr_getfpregs); | |
1651 | resolve (td_thr_getxregsize); | |
1652 | resolve (td_thr_getxregs); | |
1653 | resolve (td_thr_sigsetmask); | |
1654 | resolve (td_thr_setprio); | |
1655 | resolve (td_thr_setsigpending); | |
1656 | resolve (td_thr_setfpregs); | |
1657 | resolve (td_thr_setxregs); | |
1658 | resolve (td_ta_map_id2thr); | |
1659 | resolve (td_ta_map_lwp2thr); | |
1660 | resolve (td_thr_getgregs); | |
1661 | resolve (td_thr_setgregs); | |
1662 | ||
1663 | add_target (&sol_thread_ops); | |
1664 | ||
1665 | procfs_suppress_run = 1; | |
1666 | ||
c5aa993b JM |
1667 | add_cmd ("sol-threads", class_maintenance, info_solthreads, |
1668 | "Show info on Solaris user threads.\n", &maintenanceinfolist); | |
c906108c | 1669 | |
c5aa993b JM |
1670 | memcpy (&orig_core_ops, &core_ops, sizeof (struct target_ops)); |
1671 | memcpy (&core_ops, &sol_core_ops, sizeof (struct target_ops)); | |
c906108c SS |
1672 | add_target (&core_ops); |
1673 | ||
1674 | return; | |
1675 | ||
c5aa993b | 1676 | die: |
c906108c SS |
1677 | |
1678 | fprintf_unfiltered (gdb_stderr, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ()); | |
1679 | ||
1680 | if (dlhandle) | |
1681 | dlclose (dlhandle); | |
1682 | ||
1683 | /* allow the user to debug non-threaded core files */ | |
c5aa993b | 1684 | add_target (&core_ops); |
c906108c SS |
1685 | |
1686 | return; | |
1687 | } |