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 written/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
);
456 /* Must get symbols from solibs before libthread_db can run! */
457 SOLIB_ADD ((char *) 0, from_tty
, (struct target_ops
*) 0);
459 if (sol_thread_active
)
461 printf_filtered ("sol-thread active.\n");
462 main_ph
.pid
= inferior_pid
; /* Save for xfer_memory */
463 push_target (&sol_thread_ops
);
464 inferior_pid
= lwp_to_thread (inferior_pid
);
465 if (inferior_pid
== -1)
466 inferior_pid
= main_ph
.pid
;
468 add_thread (inferior_pid
);
470 /* XXX - might want to iterate over all the threads and register them. */
473 /* Take a program previously attached to and detaches it.
474 The program resumes execution and will no longer stop
475 on signals, etc. We'd better not have left any breakpoints
476 in the program or it'll die when it hits one. For this
477 to work, it may be necessary for the process to have been
478 previously attached. It *might* work if the program was
479 started via the normal ptrace (PTRACE_TRACEME). */
482 sol_thread_detach (char *args
, int from_tty
)
484 inferior_pid
= PIDGET (main_ph
.pid
);
485 unpush_target (&sol_thread_ops
);
486 procfs_ops
.to_detach (args
, from_tty
);
489 /* Resume execution of process PID. If STEP is nozero, then
490 just single step it. If SIGNAL is nonzero, restart it with that
491 signal activated. We may have to convert pid from a thread-id to an LWP id
495 sol_thread_resume (int pid
, int step
, enum target_signal signo
)
497 struct cleanup
*old_chain
;
499 old_chain
= save_inferior_pid ();
501 inferior_pid
= thread_to_lwp (inferior_pid
, main_ph
.pid
);
502 if (inferior_pid
== -1)
503 inferior_pid
= procfs_first_available ();
509 pid
= thread_to_lwp (pid
, -2);
510 if (pid
== -2) /* Inactive thread */
511 error ("This version of Solaris can't start inactive threads.");
512 if (info_verbose
&& pid
== -1)
513 warning ("Specified thread %d seems to have terminated",
514 GET_THREAD (save_pid
));
517 procfs_ops
.to_resume (pid
, step
, signo
);
519 do_cleanups (old_chain
);
522 /* Wait for any threads to stop. We may have to convert PID from a thread id
523 to a LWP id, and vice versa on the way out. */
526 sol_thread_wait (int pid
, struct target_waitstatus
*ourstatus
)
530 struct cleanup
*old_chain
;
532 save_pid
= inferior_pid
;
533 old_chain
= save_inferior_pid ();
535 inferior_pid
= thread_to_lwp (inferior_pid
, main_ph
.pid
);
536 if (inferior_pid
== -1)
537 inferior_pid
= procfs_first_available ();
543 pid
= thread_to_lwp (pid
, -2);
544 if (pid
== -2) /* Inactive thread */
545 error ("This version of Solaris can't start inactive threads.");
546 if (info_verbose
&& pid
== -1)
547 warning ("Specified thread %d seems to have terminated",
548 GET_THREAD (save_pid
));
551 rtnval
= procfs_ops
.to_wait (pid
, ourstatus
);
553 if (ourstatus
->kind
!= TARGET_WAITKIND_EXITED
)
555 /* Map the LWP of interest back to the appropriate thread ID */
556 rtnval
= lwp_to_thread (rtnval
);
560 /* See if we have a new thread */
561 if (is_thread (rtnval
)
562 && rtnval
!= save_pid
563 && !in_thread_list (rtnval
))
565 printf_filtered ("[New %s]\n", target_pid_to_str (rtnval
));
570 /* During process initialization, we may get here without the thread package
571 being initialized, since that can only happen after we've found the shared
574 do_cleanups (old_chain
);
580 sol_thread_fetch_registers (int regno
)
583 td_thrhandle_t thandle
;
586 prfpregset_t fpregset
;
592 if (!is_thread (inferior_pid
))
593 { /* LWP: pass the request on to procfs.c */
594 if (target_has_execution
)
595 procfs_ops
.to_fetch_registers (regno
);
597 orig_core_ops
.to_fetch_registers (regno
);
601 /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
603 thread
= GET_THREAD (inferior_pid
);
606 error ("sol_thread_fetch_registers: thread == 0");
608 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
610 error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s",
611 td_err_string (val
));
613 /* Get the integer regs */
615 val
= p_td_thr_getgregs (&thandle
, gregset
);
617 && val
!= TD_PARTIALREG
)
618 error ("sol_thread_fetch_registers: td_thr_getgregs %s",
619 td_err_string (val
));
621 /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp
622 are saved (by a thread context switch). */
624 /* And, now the fp regs */
626 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
628 && val
!= TD_NOFPREGS
)
629 error ("sol_thread_fetch_registers: td_thr_getfpregs %s",
630 td_err_string (val
));
632 /* Note that we must call supply_{g fp}regset *after* calling the td routines
633 because the td routines call ps_lget* which affect the values stored in the
636 supply_gregset ((gdb_gregset_t
*) &gregset
);
637 supply_fpregset ((gdb_fpregset_t
*) &fpregset
);
640 /* thread_db doesn't seem to handle this right */
641 val
= td_thr_getxregsize (&thandle
, &xregsize
);
642 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
643 error ("sol_thread_fetch_registers: td_thr_getxregsize %s",
644 td_err_string (val
));
648 xregset
= alloca (xregsize
);
649 val
= td_thr_getxregs (&thandle
, xregset
);
651 error ("sol_thread_fetch_registers: td_thr_getxregs %s",
652 td_err_string (val
));
658 sol_thread_store_registers (int regno
)
661 td_thrhandle_t thandle
;
664 prfpregset_t fpregset
;
670 if (!is_thread (inferior_pid
))
671 { /* LWP: pass the request on to procfs.c */
672 procfs_ops
.to_store_registers (regno
);
676 /* Solaris thread: convert inferior_pid into a td_thrhandle_t */
678 thread
= GET_THREAD (inferior_pid
);
680 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
682 error ("sol_thread_store_registers: td_ta_map_id2thr %s",
683 td_err_string (val
));
686 { /* Not writing all the regs */
687 /* save new register value */
688 char old_value
[REGISTER_SIZE
];
689 memcpy (old_value
, ®isters
[REGISTER_BYTE (regno
)], REGISTER_SIZE
);
691 val
= p_td_thr_getgregs (&thandle
, gregset
);
693 error ("sol_thread_store_registers: td_thr_getgregs %s",
694 td_err_string (val
));
695 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
697 error ("sol_thread_store_registers: td_thr_getfpregs %s",
698 td_err_string (val
));
700 /* restore new register value */
701 memcpy (®isters
[REGISTER_BYTE (regno
)], old_value
, REGISTER_SIZE
);
704 /* thread_db doesn't seem to handle this right */
705 val
= td_thr_getxregsize (&thandle
, &xregsize
);
706 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
707 error ("sol_thread_store_registers: td_thr_getxregsize %s",
708 td_err_string (val
));
712 xregset
= alloca (xregsize
);
713 val
= td_thr_getxregs (&thandle
, xregset
);
715 error ("sol_thread_store_registers: td_thr_getxregs %s",
716 td_err_string (val
));
721 fill_gregset ((gdb_gregset_t
*) &gregset
, regno
);
722 fill_fpregset ((gdb_fpregset_t
*) &fpregset
, regno
);
724 val
= p_td_thr_setgregs (&thandle
, gregset
);
726 error ("sol_thread_store_registers: td_thr_setgregs %s",
727 td_err_string (val
));
728 val
= p_td_thr_setfpregs (&thandle
, &fpregset
);
730 error ("sol_thread_store_registers: td_thr_setfpregs %s",
731 td_err_string (val
));
734 /* thread_db doesn't seem to handle this right */
735 val
= td_thr_getxregsize (&thandle
, &xregsize
);
736 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
737 error ("sol_thread_store_registers: td_thr_getxregsize %s",
738 td_err_string (val
));
740 /* Should probably do something about writing the xregs here, but what are
745 /* Get ready to modify the registers array. On machines which store
746 individual registers, this doesn't need to do anything. On machines
747 which store all the registers in one fell swoop, this makes sure
748 that registers contains all the registers from the program being
752 sol_thread_prepare_to_store (void)
754 procfs_ops
.to_prepare_to_store ();
757 /* Transfer LEN bytes between GDB address MYADDR and target address
758 MEMADDR. If DOWRITE is non-zero, transfer them to the target,
759 otherwise transfer them from the target. TARGET is unused.
761 Returns the number of bytes transferred. */
764 sol_thread_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int dowrite
,
765 struct target_ops
*target
)
768 struct cleanup
*old_chain
;
770 old_chain
= save_inferior_pid ();
772 if (is_thread (inferior_pid
) || /* A thread */
773 !target_thread_alive (inferior_pid
)) /* An lwp, but not alive */
774 inferior_pid
= procfs_first_available (); /* Find any live lwp. */
775 /* Note: don't need to call switch_to_thread; we're just reading memory. */
777 if (target_has_execution
)
778 retval
= procfs_ops
.to_xfer_memory (memaddr
, myaddr
, len
, dowrite
, target
);
780 retval
= orig_core_ops
.to_xfer_memory (memaddr
, myaddr
, len
,
783 do_cleanups (old_chain
);
788 /* Print status information about what we're accessing. */
791 sol_thread_files_info (struct target_ops
*ignore
)
793 procfs_ops
.to_files_info (ignore
);
797 sol_thread_kill_inferior (void)
799 procfs_ops
.to_kill ();
803 sol_thread_notice_signals (int pid
)
805 procfs_ops
.to_notice_signals (PIDGET (pid
));
808 /* Fork an inferior process, and start debugging it with /proc. */
811 sol_thread_create_inferior (char *exec_file
, char *allargs
, char **env
)
813 procfs_ops
.to_create_inferior (exec_file
, allargs
, env
);
815 if (sol_thread_active
&& inferior_pid
!= 0)
817 main_ph
.pid
= inferior_pid
; /* Save for xfer_memory */
819 push_target (&sol_thread_ops
);
821 inferior_pid
= lwp_to_thread (inferior_pid
);
822 if (inferior_pid
== -1)
823 inferior_pid
= main_ph
.pid
;
825 if (!in_thread_list (inferior_pid
))
826 add_thread (inferior_pid
);
830 /* This routine is called whenever a new symbol table is read in, or when all
831 symbol tables are removed. libthread_db can only be initialized when it
832 finds the right variables in libthread.so. Since it's a shared library,
833 those variables don't show up until the library gets mapped and the symbol
836 /* This new_objfile event is now managed by a chained function pointer.
837 * It is the callee's responsability to call the next client on the chain.
840 /* Saved pointer to previous owner of the new_objfile event. */
841 static void (*target_new_objfile_chain
) (struct objfile
*);
844 sol_thread_new_objfile (struct objfile
*objfile
)
850 sol_thread_active
= 0;
854 /* don't do anything if init failed to resolve the libthread_db library */
855 if (!procfs_suppress_run
)
858 /* Now, initialize the thread debugging library. This needs to be done after
859 the shared libraries are located because it needs information from the
860 user's thread library. */
865 warning ("sol_thread_new_objfile: td_init: %s", td_err_string (val
));
869 val
= p_td_ta_new (&main_ph
, &main_ta
);
870 if (val
== TD_NOLIBTHREAD
)
872 else if (val
!= TD_OK
)
874 warning ("sol_thread_new_objfile: td_ta_new: %s", td_err_string (val
));
878 sol_thread_active
= 1;
880 /* Call predecessor on chain, if any. */
881 if (target_new_objfile_chain
)
882 target_new_objfile_chain (objfile
);
885 /* Clean up after the inferior dies. */
888 sol_thread_mourn_inferior (void)
890 unpush_target (&sol_thread_ops
);
891 procfs_ops
.to_mourn_inferior ();
894 /* Mark our target-struct as eligible for stray "run" and "attach" commands. */
897 sol_thread_can_run (void)
899 return procfs_suppress_run
;
906 sol_thread_alive - test thread for "aliveness"
910 static bool sol_thread_alive (int pid);
914 returns true if thread still active in inferior.
919 sol_thread_alive (int pid
)
921 if (is_thread (pid
)) /* non-kernel thread */
926 pid
= GET_THREAD (pid
);
927 if ((val
= p_td_ta_map_id2thr (main_ta
, pid
, &th
)) != TD_OK
)
928 return 0; /* thread not found */
929 if ((val
= p_td_thr_validate (&th
)) != TD_OK
)
930 return 0; /* thread not valid */
931 return 1; /* known thread: return true */
934 /* kernel thread (LWP): let procfs test it */
936 if (target_has_execution
)
937 return procfs_ops
.to_thread_alive (pid
);
939 return orig_core_ops
.to_thread_alive (pid
);
944 sol_thread_stop (void)
946 procfs_ops
.to_stop ();
949 /* These routines implement the lower half of the thread_db interface. Ie: the
952 /* Various versions of <proc_service.h> have slightly
953 different function prototypes. In particular, we have
956 struct ps_prochandle * const struct ps_prochandle *
961 Which one you have depends on solaris version and what
962 patches you've applied. On the theory that there are
963 only two major variants, we have configure check the
964 prototype of ps_pdwrite (), and use that info to make
965 appropriate typedefs here. */
967 #ifdef PROC_SERVICE_IS_OLD
968 typedef const struct ps_prochandle
*gdb_ps_prochandle_t
;
969 typedef char *gdb_ps_read_buf_t
;
970 typedef char *gdb_ps_write_buf_t
;
971 typedef int gdb_ps_size_t
;
972 typedef paddr_t gdb_ps_addr_t
;
974 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
975 typedef void *gdb_ps_read_buf_t
;
976 typedef const void *gdb_ps_write_buf_t
;
977 typedef size_t gdb_ps_size_t
;
978 typedef psaddr_t gdb_ps_addr_t
;
982 /* The next four routines are called by thread_db to tell us to stop and stop
983 a particular process or lwp. Since GDB ensures that these are all stopped
984 by the time we call anything in thread_db, these routines need to do
990 ps_pstop (gdb_ps_prochandle_t ph
)
995 /* Process continue */
998 ps_pcontinue (gdb_ps_prochandle_t ph
)
1006 ps_lstop (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1014 ps_lcontinue (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1019 /* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */
1022 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *ld_object_name
,
1023 const char *ld_symbol_name
, gdb_ps_addr_t
* ld_symbol_addr
)
1025 struct minimal_symbol
*ms
;
1027 ms
= lookup_minimal_symbol (ld_symbol_name
, NULL
, NULL
);
1032 *ld_symbol_addr
= SYMBOL_VALUE_ADDRESS (ms
);
1037 /* Common routine for reading and writing memory. */
1040 rw_common (int dowrite
, const struct ps_prochandle
*ph
, gdb_ps_addr_t addr
,
1041 char *buf
, int size
)
1043 struct cleanup
*old_chain
;
1045 old_chain
= save_inferior_pid ();
1047 if (is_thread (inferior_pid
) || /* A thread */
1048 !target_thread_alive (inferior_pid
)) /* An lwp, but not alive */
1049 inferior_pid
= procfs_first_available (); /* Find any live lwp. */
1050 /* Note: don't need to call switch_to_thread; we're just reading memory. */
1052 #if defined (__sparcv9)
1053 /* For Sparc64 cross Sparc32, make sure the address has not been
1054 accidentally sign-extended (or whatever) to beyond 32 bits. */
1055 if (bfd_get_arch_size (exec_bfd
) == 32)
1063 if (target_has_execution
)
1064 cc
= procfs_ops
.to_xfer_memory (addr
, buf
, size
, dowrite
, &procfs_ops
);
1066 cc
= orig_core_ops
.to_xfer_memory (addr
, buf
, size
, dowrite
, &core_ops
);
1071 print_sys_errmsg ("rw_common (): read", errno
);
1073 print_sys_errmsg ("rw_common (): write", errno
);
1075 do_cleanups (old_chain
);
1082 warning ("rw_common (): unable to read at addr 0x%lx",
1085 warning ("rw_common (): unable to write at addr 0x%lx",
1088 do_cleanups (old_chain
);
1097 do_cleanups (old_chain
);
1102 /* Copies SIZE bytes from target process .data segment to debugger memory. */
1105 ps_pdread (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1106 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
1108 return rw_common (0, ph
, addr
, buf
, size
);
1111 /* Copies SIZE bytes from debugger memory .data segment to target process. */
1114 ps_pdwrite (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1115 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
1117 return rw_common (1, ph
, addr
, (char *) buf
, size
);
1120 /* Copies SIZE bytes from target process .text segment to debugger memory. */
1123 ps_ptread (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1124 gdb_ps_read_buf_t buf
, gdb_ps_size_t size
)
1126 return rw_common (0, ph
, addr
, buf
, size
);
1129 /* Copies SIZE bytes from debugger memory .text segment to target process. */
1132 ps_ptwrite (gdb_ps_prochandle_t ph
, gdb_ps_addr_t addr
,
1133 gdb_ps_write_buf_t buf
, gdb_ps_size_t size
)
1135 return rw_common (1, ph
, addr
, (char *) buf
, size
);
1138 /* Get integer regs for LWP */
1141 ps_lgetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1142 prgregset_t gregset
)
1144 struct cleanup
*old_chain
;
1146 old_chain
= save_inferior_pid ();
1148 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1150 if (target_has_execution
)
1151 procfs_ops
.to_fetch_registers (-1);
1153 orig_core_ops
.to_fetch_registers (-1);
1154 fill_gregset ((gdb_gregset_t
*) gregset
, -1);
1156 do_cleanups (old_chain
);
1161 /* Set integer regs for LWP */
1164 ps_lsetregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1165 const prgregset_t gregset
)
1167 struct cleanup
*old_chain
;
1169 old_chain
= save_inferior_pid ();
1171 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1173 supply_gregset ((gdb_gregset_t
*) gregset
);
1174 if (target_has_execution
)
1175 procfs_ops
.to_store_registers (-1);
1177 orig_core_ops
.to_store_registers (-1);
1179 do_cleanups (old_chain
);
1184 /* Log a message (sends to gdb_stderr). */
1187 ps_plog (const char *fmt
,...)
1191 va_start (args
, fmt
);
1193 vfprintf_filtered (gdb_stderr
, fmt
, args
);
1196 /* Get size of extra register set. Currently a noop. */
1199 ps_lgetxregsize (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, int *xregsize
)
1206 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1210 if (ioctl (lwp_fd
, PIOCGXREGSIZE
, ®size
))
1212 if (errno
== EINVAL
)
1213 return PS_NOFREGS
; /* XXX Wrong code, but this is the closest
1214 thing in proc_service.h */
1216 print_sys_errmsg ("ps_lgetxregsize (): PIOCGXREGSIZE", errno
);
1224 /* Get extra register set. Currently a noop. */
1227 ps_lgetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
1233 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1237 if (ioctl (lwp_fd
, PIOCGXREG
, xregset
))
1239 print_sys_errmsg ("ps_lgetxregs (): PIOCGXREG", errno
);
1247 /* Set extra register set. Currently a noop. */
1250 ps_lsetxregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
, caddr_t xregset
)
1256 val
= get_lwp_fd (ph
, lwpid
, &lwp_fd
);
1260 if (ioctl (lwp_fd
, PIOCSXREG
, xregset
))
1262 print_sys_errmsg ("ps_lsetxregs (): PIOCSXREG", errno
);
1270 /* Get floating-point regs for LWP */
1273 ps_lgetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1274 prfpregset_t
* fpregset
)
1276 struct cleanup
*old_chain
;
1278 old_chain
= save_inferior_pid ();
1280 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1282 if (target_has_execution
)
1283 procfs_ops
.to_fetch_registers (-1);
1285 orig_core_ops
.to_fetch_registers (-1);
1286 fill_fpregset ((gdb_fpregset_t
*) fpregset
, -1);
1288 do_cleanups (old_chain
);
1293 /* Set floating-point regs for LWP */
1296 ps_lsetfpregs (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1297 const prfpregset_t
* fpregset
)
1299 struct cleanup
*old_chain
;
1301 old_chain
= save_inferior_pid ();
1303 inferior_pid
= BUILD_LWP (lwpid
, PIDGET (inferior_pid
));
1305 supply_fpregset ((gdb_fpregset_t
*) fpregset
);
1306 if (target_has_execution
)
1307 procfs_ops
.to_store_registers (-1);
1309 orig_core_ops
.to_store_registers (-1);
1311 do_cleanups (old_chain
);
1316 #ifdef PR_MODEL_LP64
1317 /* Identify process as 32-bit or 64-bit.
1318 At the moment I'm using bfd to do this.
1319 There might be a more solaris-specific (eg. procfs) method,
1320 but this ought to work. */
1323 ps_pdmodel (gdb_ps_prochandle_t ph
, int *data_model
)
1326 *data_model
= PR_MODEL_UNKNOWN
;
1327 else if (bfd_get_arch_size (exec_bfd
) == 32)
1328 *data_model
= PR_MODEL_ILP32
;
1330 *data_model
= PR_MODEL_LP64
;
1334 #endif /* PR_MODEL_LP64 */
1336 #ifdef TM_I386SOL2_H
1338 /* Reads the local descriptor table of a LWP. */
1341 ps_lgetLDT (gdb_ps_prochandle_t ph
, lwpid_t lwpid
,
1344 /* NOTE: only used on Solaris, therefore OK to refer to procfs.c */
1345 extern struct ssd
*procfs_find_LDT_entry (int);
1348 /* FIXME: can't I get the process ID from the prochandle or something?
1351 if (inferior_pid
<= 0 || lwpid
<= 0)
1354 ret
= procfs_find_LDT_entry (BUILD_LWP (lwpid
, PIDGET (inferior_pid
)));
1357 memcpy (pldt
, ret
, sizeof (struct ssd
));
1360 else /* LDT not found. */
1363 #endif /* TM_I386SOL2_H */
1365 /* Convert a pid to printable form. */
1368 solaris_pid_to_str (int pid
)
1370 static char buf
[100];
1372 /* in case init failed to resolve the libthread_db library */
1373 if (!procfs_suppress_run
)
1374 return procfs_pid_to_str (pid
);
1376 if (is_thread (pid
))
1380 lwp
= thread_to_lwp (pid
, -2);
1383 sprintf (buf
, "Thread %d (defunct)", GET_THREAD (pid
));
1385 sprintf (buf
, "Thread %d (LWP %d)", GET_THREAD (pid
), GET_LWP (lwp
));
1387 sprintf (buf
, "Thread %d ", GET_THREAD (pid
));
1389 else if (GET_LWP (pid
) != 0)
1390 sprintf (buf
, "LWP %d ", GET_LWP (pid
));
1392 sprintf (buf
, "process %d ", PIDGET (pid
));
1398 /* Worker bee for find_new_threads
1399 Callback function that gets called once per USER thread (i.e., not
1403 sol_find_new_threads_callback (const td_thrhandle_t
*th
, void *ignored
)
1409 if ((retval
= p_td_thr_get_info (th
, &ti
)) != TD_OK
)
1413 pid
= BUILD_THREAD (ti
.ti_tid
, PIDGET (inferior_pid
));
1414 if (!in_thread_list (pid
))
1421 sol_find_new_threads (void)
1423 /* don't do anything if init failed to resolve the libthread_db library */
1424 if (!procfs_suppress_run
)
1427 if (inferior_pid
== -1)
1429 printf_filtered ("No process.\n");
1432 procfs_find_new_threads (); /* first find new kernel threads. */
1433 p_td_ta_thr_iter (main_ta
, sol_find_new_threads_callback
, (void *) 0,
1434 TD_THR_ANY_STATE
, TD_THR_LOWEST_PRIORITY
,
1435 TD_SIGNO_MASK
, TD_THR_ANY_USER_FLAGS
);
1439 sol_core_open (char *filename
, int from_tty
)
1441 orig_core_ops
.to_open (filename
, from_tty
);
1445 sol_core_close (int quitting
)
1447 orig_core_ops
.to_close (quitting
);
1451 sol_core_detach (char *args
, int from_tty
)
1453 unpush_target (&core_ops
);
1454 orig_core_ops
.to_detach (args
, from_tty
);
1458 sol_core_files_info (struct target_ops
*t
)
1460 orig_core_ops
.to_files_info (t
);
1463 /* Worker bee for info sol-thread command. This is a callback function that
1464 gets called once for each Solaris thread (ie. not kernel thread) in the
1465 inferior. Print anything interesting that we can think of. */
1468 info_cb (const td_thrhandle_t
*th
, void *s
)
1473 if ((ret
= p_td_thr_get_info (th
, &ti
)) == TD_OK
)
1475 printf_filtered ("%s thread #%d, lwp %d, ",
1476 ti
.ti_type
== TD_THR_SYSTEM
? "system" : "user ",
1477 ti
.ti_tid
, ti
.ti_lid
);
1478 switch (ti
.ti_state
)
1481 case TD_THR_UNKNOWN
:
1482 printf_filtered ("<unknown state>");
1484 case TD_THR_STOPPED
:
1485 printf_filtered ("(stopped)");
1488 printf_filtered ("(run) ");
1491 printf_filtered ("(active) ");
1494 printf_filtered ("(zombie) ");
1497 printf_filtered ("(asleep) ");
1499 case TD_THR_STOPPED_ASLEEP
:
1500 printf_filtered ("(stopped asleep)");
1503 /* Print thr_create start function: */
1504 if (ti
.ti_startfunc
!= 0)
1506 struct minimal_symbol
*msym
;
1507 msym
= lookup_minimal_symbol_by_pc (ti
.ti_startfunc
);
1509 printf_filtered (" startfunc: %s\n", SYMBOL_NAME (msym
));
1511 printf_filtered (" startfunc: 0x%s\n", paddr (ti
.ti_startfunc
));
1514 /* If thread is asleep, print function that went to sleep: */
1515 if (ti
.ti_state
== TD_THR_SLEEP
)
1517 struct minimal_symbol
*msym
;
1518 msym
= lookup_minimal_symbol_by_pc (ti
.ti_pc
);
1520 printf_filtered (" - Sleep func: %s\n", SYMBOL_NAME (msym
));
1522 printf_filtered (" - Sleep func: 0x%s\n", paddr (ti
.ti_startfunc
));
1525 /* Wrap up line, if necessary */
1526 if (ti
.ti_state
!= TD_THR_SLEEP
&& ti
.ti_startfunc
== 0)
1527 printf_filtered ("\n"); /* don't you hate counting newlines? */
1530 warning ("info sol-thread: failed to get info for thread.");
1535 /* List some state about each Solaris user thread in the inferior. */
1538 info_solthreads (char *args
, int from_tty
)
1540 p_td_ta_thr_iter (main_ta
, info_cb
, args
,
1541 TD_THR_ANY_STATE
, TD_THR_LOWEST_PRIORITY
,
1542 TD_SIGNO_MASK
, TD_THR_ANY_USER_FLAGS
);
1546 ignore (CORE_ADDR addr
, char *contents
)
1553 init_sol_thread_ops (void)
1555 sol_thread_ops
.to_shortname
= "solaris-threads";
1556 sol_thread_ops
.to_longname
= "Solaris threads and pthread.";
1557 sol_thread_ops
.to_doc
= "Solaris threads and pthread support.";
1558 sol_thread_ops
.to_open
= sol_thread_open
;
1559 sol_thread_ops
.to_close
= 0;
1560 sol_thread_ops
.to_attach
= sol_thread_attach
;
1561 sol_thread_ops
.to_detach
= sol_thread_detach
;
1562 sol_thread_ops
.to_resume
= sol_thread_resume
;
1563 sol_thread_ops
.to_wait
= sol_thread_wait
;
1564 sol_thread_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1565 sol_thread_ops
.to_store_registers
= sol_thread_store_registers
;
1566 sol_thread_ops
.to_prepare_to_store
= sol_thread_prepare_to_store
;
1567 sol_thread_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1568 sol_thread_ops
.to_files_info
= sol_thread_files_info
;
1569 sol_thread_ops
.to_insert_breakpoint
= memory_insert_breakpoint
;
1570 sol_thread_ops
.to_remove_breakpoint
= memory_remove_breakpoint
;
1571 sol_thread_ops
.to_terminal_init
= terminal_init_inferior
;
1572 sol_thread_ops
.to_terminal_inferior
= terminal_inferior
;
1573 sol_thread_ops
.to_terminal_ours_for_output
= terminal_ours_for_output
;
1574 sol_thread_ops
.to_terminal_ours
= terminal_ours
;
1575 sol_thread_ops
.to_terminal_info
= child_terminal_info
;
1576 sol_thread_ops
.to_kill
= sol_thread_kill_inferior
;
1577 sol_thread_ops
.to_load
= 0;
1578 sol_thread_ops
.to_lookup_symbol
= 0;
1579 sol_thread_ops
.to_create_inferior
= sol_thread_create_inferior
;
1580 sol_thread_ops
.to_mourn_inferior
= sol_thread_mourn_inferior
;
1581 sol_thread_ops
.to_can_run
= sol_thread_can_run
;
1582 sol_thread_ops
.to_notice_signals
= sol_thread_notice_signals
;
1583 sol_thread_ops
.to_thread_alive
= sol_thread_alive
;
1584 sol_thread_ops
.to_pid_to_str
= solaris_pid_to_str
;
1585 sol_thread_ops
.to_find_new_threads
= sol_find_new_threads
;
1586 sol_thread_ops
.to_stop
= sol_thread_stop
;
1587 sol_thread_ops
.to_stratum
= process_stratum
;
1588 sol_thread_ops
.to_has_all_memory
= 1;
1589 sol_thread_ops
.to_has_memory
= 1;
1590 sol_thread_ops
.to_has_stack
= 1;
1591 sol_thread_ops
.to_has_registers
= 1;
1592 sol_thread_ops
.to_has_execution
= 1;
1593 sol_thread_ops
.to_has_thread_control
= tc_none
;
1594 sol_thread_ops
.to_sections
= 0;
1595 sol_thread_ops
.to_sections_end
= 0;
1596 sol_thread_ops
.to_magic
= OPS_MAGIC
;
1601 init_sol_core_ops (void)
1603 sol_core_ops
.to_shortname
= "solaris-core";
1604 sol_core_ops
.to_longname
= "Solaris core threads and pthread.";
1605 sol_core_ops
.to_doc
= "Solaris threads and pthread support for core files.";
1606 sol_core_ops
.to_open
= sol_core_open
;
1607 sol_core_ops
.to_close
= sol_core_close
;
1608 sol_core_ops
.to_attach
= sol_thread_attach
;
1609 sol_core_ops
.to_detach
= sol_core_detach
;
1610 /* sol_core_ops.to_resume = 0; */
1611 /* sol_core_ops.to_wait = 0; */
1612 sol_core_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1613 /* sol_core_ops.to_store_registers = 0; */
1614 /* sol_core_ops.to_prepare_to_store = 0; */
1615 sol_core_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1616 sol_core_ops
.to_files_info
= sol_core_files_info
;
1617 sol_core_ops
.to_insert_breakpoint
= ignore
;
1618 sol_core_ops
.to_remove_breakpoint
= ignore
;
1619 /* sol_core_ops.to_terminal_init = 0; */
1620 /* sol_core_ops.to_terminal_inferior = 0; */
1621 /* sol_core_ops.to_terminal_ours_for_output = 0; */
1622 /* sol_core_ops.to_terminal_ours = 0; */
1623 /* sol_core_ops.to_terminal_info = 0; */
1624 /* sol_core_ops.to_kill = 0; */
1625 /* sol_core_ops.to_load = 0; */
1626 /* sol_core_ops.to_lookup_symbol = 0; */
1627 sol_core_ops
.to_create_inferior
= sol_thread_create_inferior
;
1628 sol_core_ops
.to_stratum
= core_stratum
;
1629 sol_core_ops
.to_has_all_memory
= 0;
1630 sol_core_ops
.to_has_memory
= 1;
1631 sol_core_ops
.to_has_stack
= 1;
1632 sol_core_ops
.to_has_registers
= 1;
1633 sol_core_ops
.to_has_execution
= 0;
1634 sol_core_ops
.to_has_thread_control
= tc_none
;
1635 sol_core_ops
.to_thread_alive
= sol_thread_alive
;
1636 sol_core_ops
.to_pid_to_str
= solaris_pid_to_str
;
1637 /* On Solaris/x86, when debugging a threaded core file from process <n>,
1638 the following causes "info threads" to produce "procfs: couldn't find pid
1639 <n> in procinfo list" where <n> is the pid of the process that produced
1640 the core file. Disable it for now. */
1641 /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */
1642 sol_core_ops
.to_sections
= 0;
1643 sol_core_ops
.to_sections_end
= 0;
1644 sol_core_ops
.to_magic
= OPS_MAGIC
;
1647 /* we suppress the call to add_target of core_ops in corelow because
1648 if there are two targets in the stratum core_stratum, find_core_target
1649 won't know which one to return. see corelow.c for an additonal
1650 comment on coreops_suppress_target. */
1651 int coreops_suppress_target
= 1;
1654 _initialize_sol_thread (void)
1658 init_sol_thread_ops ();
1659 init_sol_core_ops ();
1661 dlhandle
= dlopen ("libthread_db.so.1", RTLD_NOW
);
1665 #define resolve(X) \
1666 if (!(p_##X = dlsym (dlhandle, #X))) \
1670 resolve (td_ta_new
);
1671 resolve (td_ta_delete
);
1673 resolve (td_ta_get_ph
);
1674 resolve (td_ta_get_nthreads
);
1675 resolve (td_ta_tsd_iter
);
1676 resolve (td_ta_thr_iter
);
1677 resolve (td_thr_validate
);
1678 resolve (td_thr_tsd
);
1679 resolve (td_thr_get_info
);
1680 resolve (td_thr_getfpregs
);
1681 resolve (td_thr_getxregsize
);
1682 resolve (td_thr_getxregs
);
1683 resolve (td_thr_sigsetmask
);
1684 resolve (td_thr_setprio
);
1685 resolve (td_thr_setsigpending
);
1686 resolve (td_thr_setfpregs
);
1687 resolve (td_thr_setxregs
);
1688 resolve (td_ta_map_id2thr
);
1689 resolve (td_ta_map_lwp2thr
);
1690 resolve (td_thr_getgregs
);
1691 resolve (td_thr_setgregs
);
1693 add_target (&sol_thread_ops
);
1695 procfs_suppress_run
= 1;
1697 add_cmd ("sol-threads", class_maintenance
, info_solthreads
,
1698 "Show info on Solaris user threads.\n", &maintenanceinfolist
);
1700 memcpy (&orig_core_ops
, &core_ops
, sizeof (struct target_ops
));
1701 memcpy (&core_ops
, &sol_core_ops
, sizeof (struct target_ops
));
1702 add_target (&core_ops
);
1704 /* Hook into new_objfile notification. */
1705 target_new_objfile_chain
= target_new_objfile_hook
;
1706 target_new_objfile_hook
= sol_thread_new_objfile
;
1711 fprintf_unfiltered (gdb_stderr
, "[GDB will not be able to debug user-mode threads: %s]\n", dlerror ());
1716 /* allow the user to debug non-threaded core files */
1717 add_target (&core_ops
);