1 /* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
2 Copyright 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
4 This file is part of GDB.
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.
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.
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. */
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.
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.
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!
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
51 #include <proc_service.h>
52 #include <thread_db.h>
53 #include "gdbthread.h"
62 extern struct target_ops sol_thread_ops
; /* Forward declaration */
63 extern struct target_ops sol_core_ops
; /* Forward declaration */
65 /* place to store core_ops before we overwrite it */
66 static struct target_ops orig_core_ops
;
68 struct target_ops sol_thread_ops
;
69 struct target_ops sol_core_ops
;
71 extern int procfs_suppress_run
;
72 extern struct target_ops procfs_ops
; /* target vector for procfs.c */
73 extern struct target_ops core_ops
; /* target vector for corelow.c */
74 extern char *procfs_pid_to_str (int pid
);
76 /* Prototypes for supply_gregset etc. */
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. */
94 static struct ps_prochandle main_ph
;
95 static td_thragent_t
*main_ta
;
96 static int sol_thread_active
= 0;
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
);
108 static void init_sol_thread_ops (void);
109 static void init_sol_core_ops (void);
111 /* Default definitions: These must be defined in tm.h
112 if they are to be shared with a process module such as procfs. */
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)
121 #define BUILD_THREAD(TID, PID) (MERGEPID (PID, TID) | THREAD_FLAG)
123 /* Pointers to routines from lithread_db resolved by dlopen() */
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
,
134 static td_err_e (*p_td_ta_tsd_iter
) (const td_thragent_t
* ta_p
,
137 static td_err_e (*p_td_ta_thr_iter
) (const td_thragent_t
* ta_p
,
140 td_thr_state_e state
,
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
,
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
,
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
,
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
,
169 td_thrhandle_t
* th_p
);
170 static td_err_e (*p_td_ta_map_lwp2thr
) (const td_thragent_t
* ta_p
,
172 td_thrhandle_t
* th_p
);
173 static td_err_e (*p_td_thr_getgregs
) (const td_thrhandle_t
* th_p
,
175 static td_err_e (*p_td_thr_setgregs
) (const td_thrhandle_t
* th_p
,
176 const prgregset_t regset
);
182 td_err_string - Convert a thread_db error code to a string
186 char * td_err_string (errcode)
190 Return the thread_db error string associated with errcode. If errcode
191 is unknown, then return a message.
196 td_err_string (td_err_e errcode
)
198 static struct string_map
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"},
220 {TD_PARTIALREG
, "Only part of register set was writen/read"},
221 {TD_NOXREGS
, "X register set not available for given thread"}
223 const int td_err_size
= sizeof td_err_table
/ sizeof (struct string_map
);
227 for (i
= 0; i
< td_err_size
; i
++)
228 if (td_err_table
[i
].num
== errcode
)
229 return td_err_table
[i
].str
;
231 sprintf (buf
, "Unknown thread_db error code: %d", errcode
);
240 td_state_string - Convert a thread_db state code to a string
244 char * td_state_string (statecode)
248 Return the thread_db state string associated with statecode. If
249 statecode is unknown, then return a message.
254 td_state_string (td_thr_state_e statecode
)
256 static struct string_map
257 td_thr_state_table
[] =
259 {TD_THR_ANY_STATE
, "any state"},
260 {TD_THR_UNKNOWN
, "unknown"},
261 {TD_THR_STOPPED
, "stopped"},
263 {TD_THR_ACTIVE
, "active"},
264 {TD_THR_ZOMBIE
, "zombie"},
265 {TD_THR_SLEEP
, "sleep"},
266 {TD_THR_STOPPED_ASLEEP
, "stopped asleep"}
268 const int td_thr_state_table_size
= sizeof td_thr_state_table
/ sizeof (struct string_map
);
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
;
276 sprintf (buf
, "Unknown thread_db state code: %d", statecode
);
285 thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id.
289 int thread_to_lwp (thread_id, default_lwp)
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.
299 This function probably shouldn't call error()...
304 thread_to_lwp (int thread_id
, int default_lwp
)
310 if (is_lwp (thread_id
))
311 return thread_id
; /* It's already an LWP id */
313 /* It's a thread. Convert to lwp */
315 val
= p_td_ta_map_id2thr (main_ta
, GET_THREAD (thread_id
), &th
);
317 return -1; /* thread must have terminated */
318 else if (val
!= TD_OK
)
319 error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val
));
321 val
= p_td_thr_get_info (&th
, &ti
);
323 return -1; /* thread must have terminated */
324 else if (val
!= TD_OK
)
325 error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val
));
327 if (ti
.ti_state
!= TD_THR_ACTIVE
)
329 if (default_lwp
!= -1)
331 error ("thread_to_lwp: thread state not active: %s",
332 td_state_string (ti
.ti_state
));
335 return BUILD_LWP (ti
.ti_lid
, PIDGET (thread_id
));
342 lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id.
346 int lwp_to_thread (lwp_id)
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.
355 This function probably shouldn't call error()...
360 lwp_to_thread (int lwp
)
367 return lwp
; /* It's already a thread id */
369 /* It's an lwp. Convert it to a thread id. */
371 if (!sol_thread_alive (lwp
))
372 return -1; /* defunct lwp */
374 val
= p_td_ta_map_lwp2thr (main_ta
, GET_LWP (lwp
), &th
);
376 return -1; /* thread must have terminated */
377 else if (val
!= TD_OK
)
378 error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val
));
380 val
= p_td_thr_validate (&th
);
382 return lwp
; /* libthread doesn't know about it;
384 else if (val
!= TD_OK
)
385 error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val
));
387 val
= p_td_thr_get_info (&th
, &ti
);
389 return -1; /* thread must have terminated */
390 else if (val
!= TD_OK
)
391 error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val
));
393 return BUILD_THREAD (ti
.ti_tid
, PIDGET (lwp
));
400 save_inferior_pid - Save inferior_pid on the cleanup list
401 restore_inferior_pid - Restore inferior_pid from the cleanup list
405 struct cleanup *save_inferior_pid ()
406 void restore_inferior_pid (int pid)
410 These two functions act in unison to restore inferior_pid in
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.
424 static struct cleanup
*
425 save_inferior_pid (void)
427 return make_cleanup (restore_inferior_pid
, (void *) inferior_pid
);
431 restore_inferior_pid (void *pid
)
433 inferior_pid
= (int) pid
;
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. */
443 sol_thread_open (char *arg
, int from_tty
)
445 procfs_ops
.to_open (arg
, from_tty
);
448 /* Attach to process PID, then initialize for debugging it
449 and wait for the trace-trap that results from attaching. */
452 sol_thread_attach (char *args
, int from_tty
)
454 procfs_ops
.to_attach (args
, from_tty
);
455 /* Must get symbols from solibs before libthread_db can run! */
456 SOLIB_ADD ((char *) 0, from_tty
, (struct target_ops
*) 0);
457 if (sol_thread_active
)
459 printf_filtered ("sol-thread active.\n");
460 main_ph
.pid
= inferior_pid
; /* Save for xfer_memory */
461 push_target (&sol_thread_ops
);
462 inferior_pid
= lwp_to_thread (inferior_pid
);
463 if (inferior_pid
== -1)
464 inferior_pid
= main_ph
.pid
;
466 add_thread (inferior_pid
);
468 /* XXX - might want to iterate over all the threads and register them. */
471 /* Take a program previously attached to and detaches it.
472 The program resumes execution and will no longer stop
473 on signals, etc. We'd better not have left any breakpoints
474 in the program or it'll die when it hits one. For this
475 to work, it may be necessary for the process to have been
476 previously attached. It *might* work if the program was
477 started via the normal ptrace (PTRACE_TRACEME). */
480 sol_thread_detach (char *args
, int from_tty
)
482 inferior_pid
= PIDGET (main_ph
.pid
);
483 unpush_target (&sol_thread_ops
);
484 procfs_ops
.to_detach (args
, from_tty
);
487 /* Resume execution of process PID. If STEP is nozero, then
488 just single step it. If SIGNAL is nonzero, restart it with that
489 signal activated. We may have to convert pid from a thread-id to an LWP id
493 sol_thread_resume (int pid
, int step
, enum target_signal signo
)
495 struct cleanup
*old_chain
;
497 old_chain
= save_inferior_pid ();
499 inferior_pid
= thread_to_lwp (inferior_pid
, main_ph
.pid
);
500 if (inferior_pid
== -1)
501 inferior_pid
= procfs_first_available ();
507 pid
= thread_to_lwp (pid
, -2);
508 if (pid
== -2) /* Inactive thread */
509 error ("This version of Solaris can't start inactive threads.");
510 if (info_verbose
&& pid
== -1)
511 warning ("Specified thread %d seems to have terminated",
512 GET_THREAD (save_pid
));
515 procfs_ops
.to_resume (pid
, step
, signo
);
517 do_cleanups (old_chain
);
520 /* Wait for any threads to stop. We may have to convert PID from a thread id
521 to a LWP id, and vice versa on the way out. */
524 sol_thread_wait (int pid
, struct target_waitstatus
*ourstatus
)
528 struct cleanup
*old_chain
;
530 save_pid
= inferior_pid
;
531 old_chain
= save_inferior_pid ();
533 inferior_pid
= thread_to_lwp (inferior_pid
, main_ph
.pid
);
534 if (inferior_pid
== -1)
535 inferior_pid
= procfs_first_available ();
541 pid
= thread_to_lwp (pid
, -2);
542 if (pid
== -2) /* Inactive thread */
543 error ("This version of Solaris can't start inactive threads.");
544 if (info_verbose
&& pid
== -1)
545 warning ("Specified thread %d seems to have terminated",
546 GET_THREAD (save_pid
));
549 rtnval
= procfs_ops
.to_wait (pid
, ourstatus
);
551 if (ourstatus
->kind
!= TARGET_WAITKIND_EXITED
)
553 /* Map the LWP of interest back to the appropriate thread ID */
554 rtnval
= lwp_to_thread (rtnval
);
558 /* See if we have a new thread */
559 if (is_thread (rtnval
)
560 && rtnval
!= save_pid
561 && !in_thread_list (rtnval
))
563 printf_filtered ("[New %s]\n", target_pid_to_str (rtnval
));
568 /* During process initialization, we may get here without the thread package
569 being initialized, since that can only happen after we've found the shared
572 do_cleanups (old_chain
);
578 sol_thread_fetch_registers (int regno
)
581 td_thrhandle_t thandle
;
584 prfpregset_t fpregset
;
590 if (!is_thread (inferior_pid
))
591 { /* LWP: pass the request on to procfs.c */
592 if (target_has_execution
)
593 procfs_ops
.to_fetch_registers (regno
);
595 orig_core_ops
.to_fetch_registers (regno
);
599 /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
601 thread
= GET_THREAD (inferior_pid
);
604 error ("sol_thread_fetch_registers: thread == 0");
606 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
608 error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s",
609 td_err_string (val
));
611 /* Get the integer regs */
613 val
= p_td_thr_getgregs (&thandle
, gregset
);
615 && val
!= TD_PARTIALREG
)
616 error ("sol_thread_fetch_registers: td_thr_getgregs %s",
617 td_err_string (val
));
619 /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp
620 are saved (by a thread context switch). */
622 /* And, now the fp regs */
624 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
626 && val
!= TD_NOFPREGS
)
627 error ("sol_thread_fetch_registers: td_thr_getfpregs %s",
628 td_err_string (val
));
630 /* Note that we must call supply_{g fp}regset *after* calling the td routines
631 because the td routines call ps_lget* which affect the values stored in the
634 supply_gregset ((gdb_gregset_t
*) &gregset
);
635 supply_fpregset ((gdb_fpregset_t
*) &fpregset
);
638 /* thread_db doesn't seem to handle this right */
639 val
= td_thr_getxregsize (&thandle
, &xregsize
);
640 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
641 error ("sol_thread_fetch_registers: td_thr_getxregsize %s",
642 td_err_string (val
));
646 xregset
= alloca (xregsize
);
647 val
= td_thr_getxregs (&thandle
, xregset
);
649 error ("sol_thread_fetch_registers: td_thr_getxregs %s",
650 td_err_string (val
));
656 sol_thread_store_registers (int regno
)
659 td_thrhandle_t thandle
;
662 prfpregset_t fpregset
;
668 if (!is_thread (inferior_pid
))
669 { /* LWP: pass the request on to procfs.c */
670 procfs_ops
.to_store_registers (regno
);
674 /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
676 thread
= GET_THREAD (inferior_pid
);
678 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
680 error ("sol_thread_store_registers: td_ta_map_id2thr %s",
681 td_err_string (val
));
684 { /* Not writing all the regs */
685 /* save new register value */
686 char old_value
[REGISTER_SIZE
];
687 memcpy (old_value
, ®isters
[REGISTER_BYTE (regno
)], REGISTER_SIZE
);
689 val
= p_td_thr_getgregs (&thandle
, gregset
);
691 error ("sol_thread_store_registers: td_thr_getgregs %s",
692 td_err_string (val
));
693 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
695 error ("sol_thread_store_registers: td_thr_getfpregs %s",
696 td_err_string (val
));
698 /* restore new register value */
699 memcpy (®isters
[REGISTER_BYTE (regno
)], old_value
, REGISTER_SIZE
);
702 /* thread_db doesn't seem to handle this right */
703 val
= td_thr_getxregsize (&thandle
, &xregsize
);
704 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
705 error ("sol_thread_store_registers: td_thr_getxregsize %s",
706 td_err_string (val
));
710 xregset
= alloca (xregsize
);
711 val
= td_thr_getxregs (&thandle
, xregset
);
713 error ("sol_thread_store_registers: td_thr_getxregs %s",
714 td_err_string (val
));
719 fill_gregset ((gdb_gregset_t
*) &gregset
, regno
);
720 fill_fpregset ((gdb_fpregset_t
*) &fpregset
, regno
);
722 val
= p_td_thr_setgregs (&thandle
, gregset
);
724 error ("sol_thread_store_registers: td_thr_setgregs %s",
725 td_err_string (val
));
726 val
= p_td_thr_setfpregs (&thandle
, &fpregset
);
728 error ("sol_thread_store_registers: td_thr_setfpregs %s",
729 td_err_string (val
));
732 /* thread_db doesn't seem to handle this right */
733 val
= td_thr_getxregsize (&thandle
, &xregsize
);
734 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
735 error ("sol_thread_store_registers: td_thr_getxregsize %s",
736 td_err_string (val
));
738 /* Should probably do something about writing the xregs here, but what are
743 /* Get ready to modify the registers array. On machines which store
744 individual registers, this doesn't need to do anything. On machines
745 which store all the registers in one fell swoop, this makes sure
746 that registers contains all the registers from the program being
750 sol_thread_prepare_to_store (void)
752 procfs_ops
.to_prepare_to_store ();
756 sol_thread_xfer_memory (memaddr
, myaddr
, len
, dowrite
, target
)
761 struct target_ops
*target
; /* ignored */
764 struct cleanup
*old_chain
;
766 old_chain
= save_inferior_pid ();
768 if (is_thread (inferior_pid
) || /* A thread */
769 !target_thread_alive (inferior_pid
)) /* An lwp, but not alive */
770 inferior_pid
= procfs_first_available (); /* Find any live lwp. */
771 /* Note: don't need to call switch_to_thread; we're just reading memory. */
773 if (target_has_execution
)
774 retval
= procfs_ops
.to_xfer_memory (memaddr
, myaddr
, len
, dowrite
, target
);
776 retval
= orig_core_ops
.to_xfer_memory (memaddr
, myaddr
, len
,
779 do_cleanups (old_chain
);
784 /* Print status information about what we're accessing. */
787 sol_thread_files_info (struct target_ops
*ignore
)
789 procfs_ops
.to_files_info (ignore
);
793 sol_thread_kill_inferior (void)
795 procfs_ops
.to_kill ();
799 sol_thread_notice_signals (int pid
)
801 procfs_ops
.to_notice_signals (PIDGET (pid
));
804 /* Fork an inferior process, and start debugging it with /proc. */
807 sol_thread_create_inferior (char *exec_file
, char *allargs
, char **env
)
809 procfs_ops
.to_create_inferior (exec_file
, allargs
, env
);
811 if (sol_thread_active
&& inferior_pid
!= 0)
813 main_ph
.pid
= inferior_pid
; /* Save for xfer_memory */
815 push_target (&sol_thread_ops
);
817 inferior_pid
= lwp_to_thread (inferior_pid
);
818 if (inferior_pid
== -1)
819 inferior_pid
= main_ph
.pid
;
821 if (!in_thread_list (inferior_pid
))
822 add_thread (inferior_pid
);
826 /* This routine is called whenever a new symbol table is read in, or when all
827 symbol tables are removed. libthread_db can only be initialized when it
828 finds the right variables in libthread.so. Since it's a shared library,
829 those variables don't show up until the library gets mapped and the symbol
832 /* This new_objfile event is now managed by a chained function pointer.
833 * It is the callee's responsability to call the next client on the chain.
836 /* Saved pointer to previous owner of the new_objfile event. */
837 static void (*target_new_objfile_chain
) (struct objfile
*);
840 sol_thread_new_objfile (struct objfile
*objfile
)
846 sol_thread_active
= 0;
850 /* don't do anything if init failed to resolve the libthread_db library */
851 if (!procfs_suppress_run
)
854 /* Now, initialize the thread debugging library. This needs to be done after
855 the shared libraries are located because it needs information from the
856 user's thread library. */
861 warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val
));
865 val
= p_td_ta_new (&main_ph
, &main_ta
);
866 if (val
== TD_NOLIBTHREAD
)
868 else if (val
!= TD_OK
)
870 warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val
));
874 sol_thread_active
= 1;
876 /* Call predecessor on chain, if any. */
877 if (target_new_objfile_chain
)
878 target_new_objfile_chain (objfile
);
881 /* Clean up after the inferior dies. */
884 sol_thread_mourn_inferior (void)
886 unpush_target (&sol_thread_ops
);
887 procfs_ops
.to_mourn_inferior ();
890 /* Mark our target-struct as eligible for stray "run" and "attach" commands. */
893 sol_thread_can_run (void)
895 return procfs_suppress_run
;
902 sol_thread_alive - test thread for "aliveness"
906 static bool sol_thread_alive (int pid);
910 returns true if thread still active in inferior.
915 sol_thread_alive (int pid
)
917 if (is_thread (pid
)) /* non-kernel thread */
922 pid
= GET_THREAD (pid
);
923 if ((val
= p_td_ta_map_id2thr (main_ta
, pid
, &th
)) != TD_OK
)
924 return 0; /* thread not found */
925 if ((val
= p_td_thr_validate (&th
)) != TD_OK
)
926 return 0; /* thread not valid */
927 return 1; /* known thread: return true */
930 /* kernel thread (LWP): let procfs test it */
932 if (target_has_execution
)
933 return procfs_ops
.to_thread_alive (pid
);
935 return orig_core_ops
.to_thread_alive (pid
);
940 sol_thread_stop (void)
942 procfs_ops
.to_stop ();
945 /* These routines implement the lower half of the thread_db interface. Ie: the
948 /* Various versions of <proc_service.h> have slightly
949 different function prototypes. In particular, we have
952 struct ps_prochandle * const struct ps_prochandle *
957 Which one you have depends on solaris version and what
958 patches you've applied. On the theory that there are
959 only two major variants, we have configure check the
960 prototype of ps_pdwrite (), and use that info to make
961 appropriate typedefs here. */
963 #ifdef PROC_SERVICE_IS_OLD
964 typedef const struct ps_prochandle
*gdb_ps_prochandle_t
;
965 typedef char *gdb_ps_read_buf_t
;
966 typedef char *gdb_ps_write_buf_t
;
967 typedef int gdb_ps_size_t
;
968 typedef paddr_t gdb_ps_addr_t
;
970 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
971 typedef void *gdb_ps_read_buf_t
;
972 typedef const void *gdb_ps_write_buf_t
;
973 typedef size_t gdb_ps_size_t
;
974 typedef psaddr_t gdb_ps_addr_t
;
978 /* The next four routines are called by thread_db to tell us to stop and stop
979 a particular process or lwp. Since GDB ensures that these are all stopped
980 by the time we call anything in thread_db, these routines need to do
986 ps_pstop (gdb_ps_prochandle_t ph
)
991 /* Process continue */
994 ps_pcontinue (gdb_ps_prochandle_t ph
)
1002 ps_lstop (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1010 ps_lcontinue (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1015 /* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */
1018 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *ld_object_name
,
1019 const char *ld_symbol_name
, gdb_ps_addr_t
* ld_symbol_addr
)
1021 struct minimal_symbol
*ms
;
1023 ms
= lookup_minimal_symbol (ld_symbol_name
, NULL
, NULL
);
1028 *ld_symbol_addr
= SYMBOL_VALUE_ADDRESS (ms
);
1033 /* Common routine for reading and writing memory. */
1036 rw_common (int dowrite
, const struct ps_prochandle
*ph
, gdb_ps_addr_t addr
,
1037 char *buf
, int size
)
1039 struct cleanup
*old_chain
;
1041 old_chain
= save_inferior_pid ();
1043 if (is_thread (inferior_pid
) || /* A thread */
1044 !target_thread_alive (inferior_pid
)) /* An lwp, but not alive */
1045 inferior_pid
= procfs_first_available (); /* Find any live lwp. */
1046 /* Note: don't need to call switch_to_thread; we're just reading memory. */
1048 #if defined (__sparcv9)
1049 /* For Sparc64 cross Sparc32, make sure the address has not been
1050 accidentally sign-extended (or whatever) to beyond 32 bits. */
1051 if (bfd_get_arch_size (exec_bfd
) == 32)
1059 if (target_has_execution
)
1060 cc
= procfs_ops
.to_xfer_memory (addr
, buf
, size
, dowrite
, &procfs_ops
);
1062 cc
= orig_core_ops
.to_xfer_memory (addr
, buf
, size
, dowrite
, &core_ops
);
1067 print_sys_errmsg ("rw_common (): read", errno
);
1069 print_sys_errmsg ("rw_common (): write", errno
);
1071 do_cleanups (old_chain
);
1078 warning ("rw_common (): unable to read at addr 0x%lx",
1081 warning ("rw_common (): unable to write at addr 0x%lx",
1084 do_cleanups (old_chain
);
1093 do_cleanups (old_chain
);
1098 /* Copies SIZE bytes from target process .data segment to debugger memory. */
1101 ps_pdread (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1102 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
1104 return rw_common (0, ph
, addr
, buf
, size
);
1107 /* Copies SIZE bytes from debugger memory .data segment to target process. */
1110 ps_pdwrite (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1111 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
1113 return rw_common (1, ph
, addr
, (char *) buf
, size
);
1116 /* Copies SIZE bytes from target process .text segment to debugger memory. */
1119 ps_ptread (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1120 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
1122 return rw_common (0, ph
, addr
, buf
, size
);
1125 /* Copies SIZE bytes from debugger memory .text segment to target process. */
1128 ps_ptwrite (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1129 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
1131 return rw_common (1, ph
, addr
, (char *) buf
, size
);
1134 /* Get integer regs for LWP */
1137 ps_lgetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1138 prgregset_t gregset
)
1140 struct cleanup
*old_chain
;
1142 old_chain
= save_inferior_pid ();
1144 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1146 if (target_has_execution
)
1147 procfs_ops
.to_fetch_registers (-1);
1149 orig_core_ops
.to_fetch_registers (-1);
1150 fill_gregset ((gdb_gregset_t
*) gregset
, -1);
1152 do_cleanups (old_chain
);
1157 /* Set integer regs for LWP */
1160 ps_lsetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1161 const prgregset_t gregset
)
1163 struct cleanup
*old_chain
;
1165 old_chain
= save_inferior_pid ();
1167 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1169 supply_gregset ((gdb_gregset_t
*) gregset
);
1170 if (target_has_execution
)
1171 procfs_ops
.to_store_registers (-1);
1173 orig_core_ops
.to_store_registers (-1);
1175 do_cleanups (old_chain
);
1180 /* Log a message (sends to gdb_stderr). */
1183 ps_plog (const char *fmt
,...)
1187 va_start (args
, fmt
);
1189 vfprintf_filtered (gdb_stderr
, fmt
, args
);
1192 /* Get size of extra register set. Currently a noop. */
1195 ps_lgetxregsize (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, int *xregsize
)
1202 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1206 if (ioctl (lwp_fd
, PIOCGXREGSIZE
, ®size
))
1208 if (errno
== EINVAL
)
1209 return PS_NOFREGS
; /* XXX Wrong code, but this is the closest
1210 thing in proc_service.h */
1212 print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno
);
1220 /* Get extra register set. Currently a noop. */
1223 ps_lgetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
1229 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1233 if (ioctl (lwp_fd
, PIOCGXREG
, xregset
))
1235 print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno
);
1243 /* Set extra register set. Currently a noop. */
1246 ps_lsetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
1252 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1256 if (ioctl (lwp_fd
, PIOCSXREG
, xregset
))
1258 print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno
);
1266 /* Get floating-point regs for LWP */
1269 ps_lgetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1270 prfpregset_t
* fpregset
)
1272 struct cleanup
*old_chain
;
1274 old_chain
= save_inferior_pid ();
1276 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1278 if (target_has_execution
)
1279 procfs_ops
.to_fetch_registers (-1);
1281 orig_core_ops
.to_fetch_registers (-1);
1282 fill_fpregset ((gdb_fpregset_t
*) fpregset
, -1);
1284 do_cleanups (old_chain
);
1289 /* Set floating-point regs for LWP */
1292 ps_lsetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1293 const prfpregset_t
* fpregset
)
1295 struct cleanup
*old_chain
;
1297 old_chain
= save_inferior_pid ();
1299 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1301 supply_fpregset ((gdb_fpregset_t
*) fpregset
);
1302 if (target_has_execution
)
1303 procfs_ops
.to_store_registers (-1);
1305 orig_core_ops
.to_store_registers (-1);
1307 do_cleanups (old_chain
);
1312 /* Identify process as 32-bit or 64-bit.
1313 At the moment I'm using bfd to do this.
1314 There might be a more solaris-specific (eg. procfs) method,
1315 but this ought to work. */
1318 ps_pdmodel (gdb_ps_prochandle_t ph
, int *data_model
)
1323 if (bfd_get_arch_size (exec_bfd
) == 32)
1324 *data_model
= PR_MODEL_ILP32
;
1326 *data_model
= PR_MODEL_LP64
;
1331 #ifdef TM_I386SOL2_H
1333 /* Reads the local descriptor table of a LWP. */
1336 ps_lgetLDT (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1339 /* NOTE: only used on Solaris, therefore OK to refer to procfs.c */
1340 extern struct ssd
*procfs_find_LDT_entry (int);
1343 /* FIXME: can't I get the process ID from the prochandle or something?
1346 if (inferior_pid
<= 0 || lwpid
<= 0)
1349 ret
= procfs_find_LDT_entry (BUILD_LWP (lwpid
, PIDGET (inferior_pid
)));
1352 memcpy (pldt
, ret
, sizeof (struct ssd
));
1355 else /* LDT not found. */
1358 #endif /* TM_I386SOL2_H */
1360 /* Convert a pid to printable form. */
1363 solaris_pid_to_str (int pid
)
1365 static char buf
[100];
1367 /* in case init failed to resolve the libthread_db library */
1368 if (!procfs_suppress_run
)
1369 return procfs_pid_to_str (pid
);
1371 if (is_thread (pid
))
1375 lwp
= thread_to_lwp (pid
, -2);
1378 sprintf (buf
, "Thread %d (defunct)", GET_THREAD (pid
));
1380 sprintf (buf
, "Thread %d (LWP %d)", GET_THREAD (pid
), GET_LWP (lwp
));
1382 sprintf (buf
, "Thread %d ", GET_THREAD (pid
));
1384 else if (GET_LWP (pid
) != 0)
1385 sprintf (buf
, "LWP %d ", GET_LWP (pid
));
1387 sprintf (buf
, "process %d ", PIDGET (pid
));
1393 /* Worker bee for find_new_threads
1394 Callback function that gets called once per USER thread (i.e., not
1398 sol_find_new_threads_callback (const td_thrhandle_t
*th
, void *ignored
)
1404 if ((retval
= p_td_thr_get_info (th
, &ti
)) != TD_OK
)
1408 pid
= BUILD_THREAD (ti
.ti_tid
, PIDGET (inferior_pid
));
1409 if (!in_thread_list (pid
))
1416 sol_find_new_threads (void)
1418 /* don't do anything if init failed to resolve the libthread_db library */
1419 if (!procfs_suppress_run
)
1422 if (inferior_pid
== -1)
1424 printf_filtered ("No process.\n");
1427 procfs_find_new_threads (); /* first find new kernel threads. */
1428 p_td_ta_thr_iter (main_ta
, sol_find_new_threads_callback
, (void *) 0,
1429 TD_THR_ANY_STATE
, TD_THR_LOWEST_PRIORITY
,
1430 TD_SIGNO_MASK
, TD_THR_ANY_USER_FLAGS
);
1434 sol_core_open (char *filename
, int from_tty
)
1436 orig_core_ops
.to_open (filename
, from_tty
);
1440 sol_core_close (int quitting
)
1442 orig_core_ops
.to_close (quitting
);
1446 sol_core_detach (char *args
, int from_tty
)
1448 unpush_target (&core_ops
);
1449 orig_core_ops
.to_detach (args
, from_tty
);
1453 sol_core_files_info (struct target_ops
*t
)
1455 orig_core_ops
.to_files_info (t
);
1458 /* Worker bee for info sol-thread command. This is a callback function that
1459 gets called once for each Solaris thread (ie. not kernel thread) in the
1460 inferior. Print anything interesting that we can think of. */
1463 info_cb (const td_thrhandle_t
*th
, void *s
)
1468 if ((ret
= p_td_thr_get_info (th
, &ti
)) == TD_OK
)
1470 printf_filtered ("%s thread #%d, lwp %d, ",
1471 ti
.ti_type
== TD_THR_SYSTEM
? "system" : "user ",
1472 ti
.ti_tid
, ti
.ti_lid
);
1473 switch (ti
.ti_state
)
1476 case TD_THR_UNKNOWN
:
1477 printf_filtered ("<unknown state>");
1479 case TD_THR_STOPPED
:
1480 printf_filtered ("(stopped)");
1483 printf_filtered ("(run) ");
1486 printf_filtered ("(active) ");
1489 printf_filtered ("(zombie) ");
1492 printf_filtered ("(asleep) ");
1494 case TD_THR_STOPPED_ASLEEP
:
1495 printf_filtered ("(stopped asleep)");
1498 /* Print thr_create start function: */
1499 if (ti
.ti_startfunc
!= 0)
1501 struct minimal_symbol
*msym
;
1502 msym
= lookup_minimal_symbol_by_pc (ti
.ti_startfunc
);
1504 printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym
));
1506 printf_filtered (" startfunc: 0x%s\n", paddr (ti
.ti_startfunc
));
1509 /* If thread is asleep, print function that went to sleep: */
1510 if (ti
.ti_state
== TD_THR_SLEEP
)
1512 struct minimal_symbol
*msym
;
1513 msym
= lookup_minimal_symbol_by_pc (ti
.ti_pc
);
1515 printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym
));
1517 printf_filtered (" - Sleep func: 0x%s\n", paddr (ti
.ti_startfunc
));
1520 /* Wrap up line, if necessary */
1521 if (ti
.ti_state
!= TD_THR_SLEEP
&& ti
.ti_startfunc
== 0)
1522 printf_filtered ("\n"); /* don't you hate counting newlines? */
1525 warning ("info sol-thread: failed to get info for thread.");
1530 /* List some state about each Solaris user thread in the inferior. */
1533 info_solthreads (char *args
, int from_tty
)
1535 p_td_ta_thr_iter (main_ta
, info_cb
, args
,
1536 TD_THR_ANY_STATE
, TD_THR_LOWEST_PRIORITY
,
1537 TD_SIGNO_MASK
, TD_THR_ANY_USER_FLAGS
);
1541 ignore (CORE_ADDR addr
, char *contents
)
1548 init_sol_thread_ops (void)
1550 sol_thread_ops
.to_shortname
= "solaris-threads";
1551 sol_thread_ops
.to_longname
= "Solaris threads and pthread.";
1552 sol_thread_ops
.to_doc
= "Solaris threads and pthread support.";
1553 sol_thread_ops
.to_open
= sol_thread_open
;
1554 sol_thread_ops
.to_close
= 0;
1555 sol_thread_ops
.to_attach
= sol_thread_attach
;
1556 sol_thread_ops
.to_detach
= sol_thread_detach
;
1557 sol_thread_ops
.to_resume
= sol_thread_resume
;
1558 sol_thread_ops
.to_wait
= sol_thread_wait
;
1559 sol_thread_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1560 sol_thread_ops
.to_store_registers
= sol_thread_store_registers
;
1561 sol_thread_ops
.to_prepare_to_store
= sol_thread_prepare_to_store
;
1562 sol_thread_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1563 sol_thread_ops
.to_files_info
= sol_thread_files_info
;
1564 sol_thread_ops
.to_insert_breakpoint
= memory_insert_breakpoint
;
1565 sol_thread_ops
.to_remove_breakpoint
= memory_remove_breakpoint
;
1566 sol_thread_ops
.to_terminal_init
= terminal_init_inferior
;
1567 sol_thread_ops
.to_terminal_inferior
= terminal_inferior
;
1568 sol_thread_ops
.to_terminal_ours_for_output
= terminal_ours_for_output
;
1569 sol_thread_ops
.to_terminal_ours
= terminal_ours
;
1570 sol_thread_ops
.to_terminal_info
= child_terminal_info
;
1571 sol_thread_ops
.to_kill
= sol_thread_kill_inferior
;
1572 sol_thread_ops
.to_load
= 0;
1573 sol_thread_ops
.to_lookup_symbol
= 0;
1574 sol_thread_ops
.to_create_inferior
= sol_thread_create_inferior
;
1575 sol_thread_ops
.to_mourn_inferior
= sol_thread_mourn_inferior
;
1576 sol_thread_ops
.to_can_run
= sol_thread_can_run
;
1577 sol_thread_ops
.to_notice_signals
= sol_thread_notice_signals
;
1578 sol_thread_ops
.to_thread_alive
= sol_thread_alive
;
1579 sol_thread_ops
.to_pid_to_str
= solaris_pid_to_str
;
1580 sol_thread_ops
.to_find_new_threads
= sol_find_new_threads
;
1581 sol_thread_ops
.to_stop
= sol_thread_stop
;
1582 sol_thread_ops
.to_stratum
= process_stratum
;
1583 sol_thread_ops
.to_has_all_memory
= 1;
1584 sol_thread_ops
.to_has_memory
= 1;
1585 sol_thread_ops
.to_has_stack
= 1;
1586 sol_thread_ops
.to_has_registers
= 1;
1587 sol_thread_ops
.to_has_execution
= 1;
1588 sol_thread_ops
.to_has_thread_control
= tc_none
;
1589 sol_thread_ops
.to_sections
= 0;
1590 sol_thread_ops
.to_sections_end
= 0;
1591 sol_thread_ops
.to_magic
= OPS_MAGIC
;
1596 init_sol_core_ops (void)
1598 sol_core_ops
.to_shortname
= "solaris-core";
1599 sol_core_ops
.to_longname
= "Solaris core threads and pthread.";
1600 sol_core_ops
.to_doc
= "Solaris threads and pthread support for core files.";
1601 sol_core_ops
.to_open
= sol_core_open
;
1602 sol_core_ops
.to_close
= sol_core_close
;
1603 sol_core_ops
.to_attach
= sol_thread_attach
;
1604 sol_core_ops
.to_detach
= sol_core_detach
;
1605 /* sol_core_ops.to_resume = 0; */
1606 /* sol_core_ops.to_wait = 0; */
1607 sol_core_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1608 /* sol_core_ops.to_store_registers = 0; */
1609 /* sol_core_ops.to_prepare_to_store = 0; */
1610 sol_core_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1611 sol_core_ops
.to_files_info
= sol_core_files_info
;
1612 sol_core_ops
.to_insert_breakpoint
= ignore
;
1613 sol_core_ops
.to_remove_breakpoint
= ignore
;
1614 /* sol_core_ops.to_terminal_init = 0; */
1615 /* sol_core_ops.to_terminal_inferior = 0; */
1616 /* sol_core_ops.to_terminal_ours_for_output = 0; */
1617 /* sol_core_ops.to_terminal_ours = 0; */
1618 /* sol_core_ops.to_terminal_info = 0; */
1619 /* sol_core_ops.to_kill = 0; */
1620 /* sol_core_ops.to_load = 0; */
1621 /* sol_core_ops.to_lookup_symbol = 0; */
1622 sol_core_ops
.to_create_inferior
= sol_thread_create_inferior
;
1623 sol_core_ops
.to_stratum
= core_stratum
;
1624 sol_core_ops
.to_has_all_memory
= 0;
1625 sol_core_ops
.to_has_memory
= 1;
1626 sol_core_ops
.to_has_stack
= 1;
1627 sol_core_ops
.to_has_registers
= 1;
1628 sol_core_ops
.to_has_execution
= 0;
1629 sol_core_ops
.to_has_thread_control
= tc_none
;
1630 sol_core_ops
.to_thread_alive
= sol_thread_alive
;
1631 sol_core_ops
.to_pid_to_str
= solaris_pid_to_str
;
1632 /* On Solaris/x86, when debugging a threaded core file from process <n>,
1633 the following causes "info threads" to produce "procfs: couldn't find pid
1634 <n> in procinfo list" where <n> is the pid of the process that produced
1635 the core file. Disable it for now. */
1636 /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */
1637 sol_core_ops
.to_sections
= 0;
1638 sol_core_ops
.to_sections_end
= 0;
1639 sol_core_ops
.to_magic
= OPS_MAGIC
;
1642 /* we suppress the call to add_target of core_ops in corelow because
1643 if there are two targets in the stratum core_stratum, find_core_target
1644 won't know which one to return. see corelow.c for an additonal
1645 comment on coreops_suppress_target. */
1646 int coreops_suppress_target
= 1;
1649 _initialize_sol_thread (void)
1653 init_sol_thread_ops ();
1654 init_sol_core_ops ();
1656 dlhandle
= dlopen ("libthread_db.so.1", RTLD_NOW
);
1660 #define resolve(X) \
1661 if (!(p_##X = dlsym (dlhandle, #X))) \
1665 resolve (td_ta_new
);
1666 resolve (td_ta_delete
);
1668 resolve (td_ta_get_ph
);
1669 resolve (td_ta_get_nthreads
);
1670 resolve (td_ta_tsd_iter
);
1671 resolve (td_ta_thr_iter
);
1672 resolve (td_thr_validate
);
1673 resolve (td_thr_tsd
);
1674 resolve (td_thr_get_info
);
1675 resolve (td_thr_getfpregs
);
1676 resolve (td_thr_getxregsize
);
1677 resolve (td_thr_getxregs
);
1678 resolve (td_thr_sigsetmask
);
1679 resolve (td_thr_setprio
);
1680 resolve (td_thr_setsigpending
);
1681 resolve (td_thr_setfpregs
);
1682 resolve (td_thr_setxregs
);
1683 resolve (td_ta_map_id2thr
);
1684 resolve (td_ta_map_lwp2thr
);
1685 resolve (td_thr_getgregs
);
1686 resolve (td_thr_setgregs
);
1688 add_target (&sol_thread_ops
);
1690 procfs_suppress_run
= 1;
1692 add_cmd ("sol-threads", class_maintenance
, info_solthreads
,
1693 "Show info on Solaris user threads.\n", &maintenanceinfolist
);
1695 memcpy (&orig_core_ops
, &core_ops
, sizeof (struct target_ops
));
1696 memcpy (&core_ops
, &sol_core_ops
, sizeof (struct target_ops
));
1697 add_target (&core_ops
);
1699 /* Hook into new_objfile notification. */
1700 target_new_objfile_chain
= target_new_objfile_hook
;
1701 target_new_objfile_hook
= sol_thread_new_objfile
;
1706 fprintf_unfiltered (gdb_stderr
, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ());
1711 /* allow the user to debug non-threaded core files */
1712 add_target (&core_ops
);