1 /* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* This module implements a sort of half target that sits between the
23 machine-independent parts of GDB and the /proc interface (procfs.c) to
24 provide access to the Solaris user-mode thread implementation.
26 Solaris threads are true user-mode threads, which are invoked via the thr_*
27 and pthread_* (native and Posix respectivly) interfaces. These are mostly
28 implemented in user-space, with all thread context kept in various
29 structures that live in the user's heap. These should not be confused with
30 lightweight processes (LWPs), which are implemented by the kernel, and
31 scheduled without explicit intervention by the process.
33 Just to confuse things a little, Solaris threads (both native and Posix) are
34 actually implemented using LWPs. In general, there are going to be more
35 threads than LWPs. There is no fixed correspondence between a thread and an
36 LWP. When a thread wants to run, it gets scheduled onto the first available
37 LWP and can therefore migrate from one LWP to another as time goes on. A
38 sleeping thread may not be associated with an LWP at all!
40 To make it possible to mess with threads, Sun provides a library called
41 libthread_db.so.1 (not to be confused with libthread_db.so.0, which doesn't
42 have a published interface). This interface has an upper part, which it
43 provides, and a lower part which I provide. The upper part consists of the
44 td_* routines, which allow me to find all the threads, query their state,
45 etc... The lower part consists of all of the ps_*, which are used by the
46 td_* routines to read/write memory, manipulate LWPs, lookup symbols, etc...
47 The ps_* routines actually do most of their work by calling functions in
52 #include <proc_service.h>
53 #include <thread_db.h>
54 #include "gdbthread.h"
65 #include "gdb_string.h"
67 extern struct target_ops sol_thread_ops
; /* Forward declaration */
68 extern struct target_ops sol_core_ops
; /* Forward declaration */
70 /* place to store core_ops before we overwrite it */
71 static struct target_ops orig_core_ops
;
73 struct target_ops sol_thread_ops
;
74 struct target_ops sol_core_ops
;
76 extern int procfs_suppress_run
;
77 extern struct target_ops procfs_ops
; /* target vector for procfs.c */
78 extern struct target_ops core_ops
; /* target vector for corelow.c */
79 extern char *procfs_pid_to_str (ptid_t ptid
);
81 /* Prototypes for supply_gregset etc. */
84 /* This struct is defined by us, but mainly used for the proc_service interface.
85 We don't have much use for it, except as a handy place to get a real pid
86 for memory accesses. */
99 static struct ps_prochandle main_ph
;
100 static td_thragent_t
*main_ta
;
101 static int sol_thread_active
= 0;
103 static char *td_err_string (td_err_e errcode
);
104 static char *td_state_string (td_thr_state_e statecode
);
105 static ptid_t
thread_to_lwp (ptid_t thread_id
, int default_lwp
);
106 static void sol_thread_resume (ptid_t ptid
, int step
, enum target_signal signo
);
107 static ptid_t
lwp_to_thread (ptid_t lwp
);
108 static int sol_thread_alive (ptid_t ptid
);
109 static void sol_core_close (int quitting
);
111 static void init_sol_thread_ops (void);
112 static void init_sol_core_ops (void);
114 /* Default definitions: These must be defined in tm.h
115 if they are to be shared with a process module such as procfs. */
117 #define GET_PID(ptid) ptid_get_pid (ptid)
118 #define GET_LWP(ptid) ptid_get_lwp (ptid)
119 #define GET_THREAD(ptid) ptid_get_tid (ptid)
121 #define is_lwp(ptid) (GET_LWP (ptid) != 0)
122 #define is_thread(ptid) (GET_THREAD (ptid) != 0)
124 #define BUILD_LWP(lwp, pid) ptid_build (pid, lwp, 0)
125 #define BUILD_THREAD(tid, pid) ptid_build (pid, 0, tid)
127 /* Pointers to routines from lithread_db resolved by dlopen() */
129 static void (*p_td_log
) (const int on_off
);
130 static td_err_e (*p_td_ta_new
) (const struct ps_prochandle
* ph_p
,
131 td_thragent_t
** ta_pp
);
132 static td_err_e (*p_td_ta_delete
) (td_thragent_t
* ta_p
);
133 static td_err_e (*p_td_init
) (void);
134 static td_err_e (*p_td_ta_get_ph
) (const td_thragent_t
* ta_p
,
135 struct ps_prochandle
** ph_pp
);
136 static td_err_e (*p_td_ta_get_nthreads
) (const td_thragent_t
* ta_p
,
138 static td_err_e (*p_td_ta_tsd_iter
) (const td_thragent_t
* ta_p
,
141 static td_err_e (*p_td_ta_thr_iter
) (const td_thragent_t
* ta_p
,
144 td_thr_state_e state
,
146 sigset_t
* ti_sigmask_p
,
147 unsigned ti_user_flags
);
148 static td_err_e (*p_td_thr_validate
) (const td_thrhandle_t
* th_p
);
149 static td_err_e (*p_td_thr_tsd
) (const td_thrhandle_t
* th_p
,
150 const thread_key_t key
,
152 static td_err_e (*p_td_thr_get_info
) (const td_thrhandle_t
* th_p
,
153 td_thrinfo_t
* ti_p
);
154 static td_err_e (*p_td_thr_getfpregs
) (const td_thrhandle_t
* th_p
,
155 prfpregset_t
* fpregset
);
156 static td_err_e (*p_td_thr_getxregsize
) (const td_thrhandle_t
* th_p
,
158 static td_err_e (*p_td_thr_getxregs
) (const td_thrhandle_t
* th_p
,
159 const caddr_t xregset
);
160 static td_err_e (*p_td_thr_sigsetmask
) (const td_thrhandle_t
* th_p
,
161 const sigset_t ti_sigmask
);
162 static td_err_e (*p_td_thr_setprio
) (const td_thrhandle_t
* th_p
,
164 static td_err_e (*p_td_thr_setsigpending
) (const td_thrhandle_t
* th_p
,
165 const uchar_t ti_pending_flag
,
166 const sigset_t ti_pending
);
167 static td_err_e (*p_td_thr_setfpregs
) (const td_thrhandle_t
* th_p
,
168 const prfpregset_t
* fpregset
);
169 static td_err_e (*p_td_thr_setxregs
) (const td_thrhandle_t
* th_p
,
170 const caddr_t xregset
);
171 static td_err_e (*p_td_ta_map_id2thr
) (const td_thragent_t
* ta_p
,
173 td_thrhandle_t
* th_p
);
174 static td_err_e (*p_td_ta_map_lwp2thr
) (const td_thragent_t
* ta_p
,
176 td_thrhandle_t
* th_p
);
177 static td_err_e (*p_td_thr_getgregs
) (const td_thrhandle_t
* th_p
,
179 static td_err_e (*p_td_thr_setgregs
) (const td_thrhandle_t
* th_p
,
180 const prgregset_t regset
);
186 td_err_string - Convert a thread_db error code to a string
190 char * td_err_string (errcode)
194 Return the thread_db error string associated with errcode. If errcode
195 is unknown, then return a message.
200 td_err_string (td_err_e errcode
)
202 static struct string_map
205 {TD_OK
, "generic \"call succeeded\""},
206 {TD_ERR
, "generic error."},
207 {TD_NOTHR
, "no thread can be found to satisfy query"},
208 {TD_NOSV
, "no synch. variable can be found to satisfy query"},
209 {TD_NOLWP
, "no lwp can be found to satisfy query"},
210 {TD_BADPH
, "invalid process handle"},
211 {TD_BADTH
, "invalid thread handle"},
212 {TD_BADSH
, "invalid synchronization handle"},
213 {TD_BADTA
, "invalid thread agent"},
214 {TD_BADKEY
, "invalid key"},
215 {TD_NOMSG
, "td_thr_event_getmsg() called when there was no message"},
216 {TD_NOFPREGS
, "FPU register set not available for given thread"},
217 {TD_NOLIBTHREAD
, "application not linked with libthread"},
218 {TD_NOEVENT
, "requested event is not supported"},
219 {TD_NOCAPAB
, "capability not available"},
220 {TD_DBERR
, "Debugger service failed"},
221 {TD_NOAPLIC
, "Operation not applicable to"},
222 {TD_NOTSD
, "No thread specific data for this thread"},
223 {TD_MALLOC
, "Malloc failed"},
224 {TD_PARTIALREG
, "Only part of register set was written/read"},
225 {TD_NOXREGS
, "X register set not available for given thread"}
227 const int td_err_size
= sizeof td_err_table
/ sizeof (struct string_map
);
231 for (i
= 0; i
< td_err_size
; i
++)
232 if (td_err_table
[i
].num
== errcode
)
233 return td_err_table
[i
].str
;
235 sprintf (buf
, "Unknown thread_db error code: %d", errcode
);
244 td_state_string - Convert a thread_db state code to a string
248 char * td_state_string (statecode)
252 Return the thread_db state string associated with statecode. If
253 statecode is unknown, then return a message.
258 td_state_string (td_thr_state_e statecode
)
260 static struct string_map
261 td_thr_state_table
[] =
263 {TD_THR_ANY_STATE
, "any state"},
264 {TD_THR_UNKNOWN
, "unknown"},
265 {TD_THR_STOPPED
, "stopped"},
267 {TD_THR_ACTIVE
, "active"},
268 {TD_THR_ZOMBIE
, "zombie"},
269 {TD_THR_SLEEP
, "sleep"},
270 {TD_THR_STOPPED_ASLEEP
, "stopped asleep"}
272 const int td_thr_state_table_size
= sizeof td_thr_state_table
/ sizeof (struct string_map
);
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
;
280 sprintf (buf
, "Unknown thread_db state code: %d", statecode
);
289 thread_to_lwp - Convert a Posix or Solaris thread id to a LWP id.
293 tpid_t thread_to_lwp (thread_id, default_lwp)
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.
303 This function probably shouldn't call error()...
308 thread_to_lwp (ptid_t thread_id
, int default_lwp
)
314 if (is_lwp (thread_id
))
315 return thread_id
; /* It's already an LWP id */
317 /* It's a thread. Convert to lwp */
319 val
= p_td_ta_map_id2thr (main_ta
, GET_THREAD (thread_id
), &th
);
321 return pid_to_ptid (-1); /* thread must have terminated */
322 else if (val
!= TD_OK
)
323 error ("thread_to_lwp: td_ta_map_id2thr %s", td_err_string (val
));
325 val
= p_td_thr_get_info (&th
, &ti
);
327 return pid_to_ptid (-1); /* thread must have terminated */
328 else if (val
!= TD_OK
)
329 error ("thread_to_lwp: td_thr_get_info: %s", td_err_string (val
));
331 if (ti
.ti_state
!= TD_THR_ACTIVE
)
333 if (default_lwp
!= -1)
334 return pid_to_ptid (default_lwp
);
335 error ("thread_to_lwp: thread state not active: %s",
336 td_state_string (ti
.ti_state
));
339 return BUILD_LWP (ti
.ti_lid
, PIDGET (thread_id
));
346 lwp_to_thread - Convert a LWP id to a Posix or Solaris thread id.
350 int lwp_to_thread (lwp_id)
354 This function converts a lightweight process id to a Posix or Solaris
355 thread id. If thread_id is non-existent, that's an error.
359 This function probably shouldn't call error()...
364 lwp_to_thread (ptid_t lwp
)
371 return lwp
; /* It's already a thread id */
373 /* It's an lwp. Convert it to a thread id. */
375 if (!sol_thread_alive (lwp
))
376 return pid_to_ptid (-1); /* defunct lwp */
378 val
= p_td_ta_map_lwp2thr (main_ta
, GET_LWP (lwp
), &th
);
380 return pid_to_ptid (-1); /* thread must have terminated */
381 else if (val
!= TD_OK
)
382 error ("lwp_to_thread: td_ta_map_lwp2thr: %s.", td_err_string (val
));
384 val
= p_td_thr_validate (&th
);
386 return lwp
; /* libthread doesn't know about it;
388 else if (val
!= TD_OK
)
389 error ("lwp_to_thread: td_thr_validate: %s.", td_err_string (val
));
391 val
= p_td_thr_get_info (&th
, &ti
);
393 return pid_to_ptid (-1); /* thread must have terminated */
394 else if (val
!= TD_OK
)
395 error ("lwp_to_thread: td_thr_get_info: %s.", td_err_string (val
));
397 return BUILD_THREAD (ti
.ti_tid
, PIDGET (lwp
));
401 /* Most target vector functions from here on actually just pass through to
402 procfs.c, as they don't need to do anything specific for threads. */
405 sol_thread_open (char *arg
, int from_tty
)
407 procfs_ops
.to_open (arg
, from_tty
);
410 /* Attach to process PID, then initialize for debugging it
411 and wait for the trace-trap that results from attaching. */
414 sol_thread_attach (char *args
, int from_tty
)
416 procfs_ops
.to_attach (args
, from_tty
);
418 /* Must get symbols from solibs before libthread_db can run! */
419 SOLIB_ADD ((char *) 0, from_tty
, (struct target_ops
*) 0, auto_solib_add
);
421 if (sol_thread_active
)
423 printf_filtered ("sol-thread active.\n");
424 main_ph
.ptid
= inferior_ptid
; /* Save for xfer_memory */
425 push_target (&sol_thread_ops
);
426 inferior_ptid
= lwp_to_thread (inferior_ptid
);
427 if (PIDGET (inferior_ptid
) == -1)
428 inferior_ptid
= main_ph
.ptid
;
430 add_thread (inferior_ptid
);
432 /* XXX - might want to iterate over all the threads and register them. */
435 /* Take a program previously attached to and detaches it.
436 The program resumes execution and will no longer stop
437 on signals, etc. We'd better not have left any breakpoints
438 in the program or it'll die when it hits one. For this
439 to work, it may be necessary for the process to have been
440 previously attached. It *might* work if the program was
441 started via the normal ptrace (PTRACE_TRACEME). */
444 sol_thread_detach (char *args
, int from_tty
)
446 inferior_ptid
= pid_to_ptid (PIDGET (main_ph
.ptid
));
447 unpush_target (&sol_thread_ops
);
448 procfs_ops
.to_detach (args
, from_tty
);
451 /* Resume execution of process PID. If STEP is nozero, then
452 just single step it. If SIGNAL is nonzero, restart it with that
453 signal activated. We may have to convert pid from a thread-id to an LWP id
457 sol_thread_resume (ptid_t ptid
, int step
, enum target_signal signo
)
459 struct cleanup
*old_chain
;
461 old_chain
= save_inferior_ptid ();
463 inferior_ptid
= thread_to_lwp (inferior_ptid
, PIDGET (main_ph
.ptid
));
464 if (PIDGET (inferior_ptid
) == -1)
465 inferior_ptid
= procfs_first_available ();
467 if (PIDGET (ptid
) != -1)
469 ptid_t save_ptid
= ptid
;
471 ptid
= thread_to_lwp (ptid
, -2);
472 if (PIDGET (ptid
) == -2) /* Inactive thread */
473 error ("This version of Solaris can't start inactive threads.");
474 if (info_verbose
&& PIDGET (ptid
) == -1)
475 warning ("Specified thread %ld seems to have terminated",
476 GET_THREAD (save_ptid
));
479 procfs_ops
.to_resume (ptid
, step
, signo
);
481 do_cleanups (old_chain
);
484 /* Wait for any threads to stop. We may have to convert PID from a thread id
485 to a LWP id, and vice versa on the way out. */
488 sol_thread_wait (ptid_t ptid
, struct target_waitstatus
*ourstatus
)
492 struct cleanup
*old_chain
;
494 save_ptid
= inferior_ptid
;
495 old_chain
= save_inferior_ptid ();
497 inferior_ptid
= thread_to_lwp (inferior_ptid
, PIDGET (main_ph
.ptid
));
498 if (PIDGET (inferior_ptid
) == -1)
499 inferior_ptid
= procfs_first_available ();
501 if (PIDGET (ptid
) != -1)
503 ptid_t save_ptid
= ptid
;
505 ptid
= thread_to_lwp (ptid
, -2);
506 if (PIDGET (ptid
) == -2) /* Inactive thread */
507 error ("This version of Solaris can't start inactive threads.");
508 if (info_verbose
&& PIDGET (ptid
) == -1)
509 warning ("Specified thread %ld seems to have terminated",
510 GET_THREAD (save_ptid
));
513 rtnval
= procfs_ops
.to_wait (ptid
, ourstatus
);
515 if (ourstatus
->kind
!= TARGET_WAITKIND_EXITED
)
517 /* Map the LWP of interest back to the appropriate thread ID */
518 rtnval
= lwp_to_thread (rtnval
);
519 if (PIDGET (rtnval
) == -1)
522 /* See if we have a new thread */
523 if (is_thread (rtnval
)
524 && !ptid_equal (rtnval
, save_ptid
)
525 && !in_thread_list (rtnval
))
527 printf_filtered ("[New %s]\n", target_pid_to_str (rtnval
));
532 /* During process initialization, we may get here without the thread package
533 being initialized, since that can only happen after we've found the shared
536 do_cleanups (old_chain
);
542 sol_thread_fetch_registers (int regno
)
545 td_thrhandle_t thandle
;
548 prfpregset_t fpregset
;
554 if (!is_thread (inferior_ptid
))
555 { /* LWP: pass the request on to procfs.c */
556 if (target_has_execution
)
557 procfs_ops
.to_fetch_registers (regno
);
559 orig_core_ops
.to_fetch_registers (regno
);
563 /* Solaris thread: convert inferior_ptid into a td_thrhandle_t */
565 thread
= GET_THREAD (inferior_ptid
);
568 error ("sol_thread_fetch_registers: thread == 0");
570 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
572 error ("sol_thread_fetch_registers: td_ta_map_id2thr: %s",
573 td_err_string (val
));
575 /* Get the integer regs */
577 val
= p_td_thr_getgregs (&thandle
, gregset
);
579 && val
!= TD_PARTIALREG
)
580 error ("sol_thread_fetch_registers: td_thr_getgregs %s",
581 td_err_string (val
));
583 /* For the sparc, TD_PARTIALREG means that only i0->i7, l0->l7, pc and sp
584 are saved (by a thread context switch). */
586 /* And, now the fp regs */
588 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
590 && val
!= TD_NOFPREGS
)
591 error ("sol_thread_fetch_registers: td_thr_getfpregs %s",
592 td_err_string (val
));
594 /* Note that we must call supply_{g fp}regset *after* calling the td routines
595 because the td routines call ps_lget* which affect the values stored in the
598 supply_gregset ((gdb_gregset_t
*) &gregset
);
599 supply_fpregset ((gdb_fpregset_t
*) &fpregset
);
602 /* thread_db doesn't seem to handle this right */
603 val
= td_thr_getxregsize (&thandle
, &xregsize
);
604 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
605 error ("sol_thread_fetch_registers: td_thr_getxregsize %s",
606 td_err_string (val
));
610 xregset
= alloca (xregsize
);
611 val
= td_thr_getxregs (&thandle
, xregset
);
613 error ("sol_thread_fetch_registers: td_thr_getxregs %s",
614 td_err_string (val
));
620 sol_thread_store_registers (int regno
)
623 td_thrhandle_t thandle
;
626 prfpregset_t fpregset
;
632 if (!is_thread (inferior_ptid
))
633 { /* LWP: pass the request on to procfs.c */
634 procfs_ops
.to_store_registers (regno
);
638 /* Solaris thread: convert inferior_ptid into a td_thrhandle_t */
640 thread
= GET_THREAD (inferior_ptid
);
642 val
= p_td_ta_map_id2thr (main_ta
, thread
, &thandle
);
644 error ("sol_thread_store_registers: td_ta_map_id2thr %s",
645 td_err_string (val
));
648 { /* Not writing all the regs */
649 char old_value
[MAX_REGISTER_SIZE
];
651 /* Save new register value. */
652 regcache_collect (regno
, old_value
);
654 val
= p_td_thr_getgregs (&thandle
, gregset
);
656 error ("sol_thread_store_registers: td_thr_getgregs %s",
657 td_err_string (val
));
658 val
= p_td_thr_getfpregs (&thandle
, &fpregset
);
660 error ("sol_thread_store_registers: td_thr_getfpregs %s",
661 td_err_string (val
));
663 /* Restore new register value. */
664 supply_register (regno
, old_value
);
667 /* thread_db doesn't seem to handle this right */
668 val
= td_thr_getxregsize (&thandle
, &xregsize
);
669 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
670 error ("sol_thread_store_registers: td_thr_getxregsize %s",
671 td_err_string (val
));
675 xregset
= alloca (xregsize
);
676 val
= td_thr_getxregs (&thandle
, xregset
);
678 error ("sol_thread_store_registers: td_thr_getxregs %s",
679 td_err_string (val
));
684 fill_gregset ((gdb_gregset_t
*) &gregset
, regno
);
685 fill_fpregset ((gdb_fpregset_t
*) &fpregset
, regno
);
687 val
= p_td_thr_setgregs (&thandle
, gregset
);
689 error ("sol_thread_store_registers: td_thr_setgregs %s",
690 td_err_string (val
));
691 val
= p_td_thr_setfpregs (&thandle
, &fpregset
);
693 error ("sol_thread_store_registers: td_thr_setfpregs %s",
694 td_err_string (val
));
697 /* thread_db doesn't seem to handle this right */
698 val
= td_thr_getxregsize (&thandle
, &xregsize
);
699 if (val
!= TD_OK
&& val
!= TD_NOXREGS
)
700 error ("sol_thread_store_registers: td_thr_getxregsize %s",
701 td_err_string (val
));
703 /* Should probably do something about writing the xregs here, but what are
708 /* Get ready to modify the registers array. On machines which store
709 individual registers, this doesn't need to do anything. On machines
710 which store all the registers in one fell swoop, this makes sure
711 that registers contains all the registers from the program being
715 sol_thread_prepare_to_store (void)
717 procfs_ops
.to_prepare_to_store ();
720 /* Transfer LEN bytes between GDB address MYADDR and target address
721 MEMADDR. If DOWRITE is non-zero, transfer them to the target,
722 otherwise transfer them from the target. TARGET is unused.
724 Returns the number of bytes transferred. */
727 sol_thread_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int dowrite
,
728 struct mem_attrib
*attrib
,
729 struct target_ops
*target
)
732 struct cleanup
*old_chain
;
734 old_chain
= save_inferior_ptid ();
736 if (is_thread (inferior_ptid
) || /* A thread */
737 !target_thread_alive (inferior_ptid
)) /* An lwp, but not alive */
738 inferior_ptid
= procfs_first_available (); /* Find any live lwp. */
739 /* Note: don't need to call switch_to_thread; we're just reading memory. */
741 if (target_has_execution
)
742 retval
= procfs_ops
.to_xfer_memory (memaddr
, myaddr
, len
,
743 dowrite
, attrib
, target
);
745 retval
= orig_core_ops
.to_xfer_memory (memaddr
, myaddr
, len
,
746 dowrite
, attrib
, target
);
748 do_cleanups (old_chain
);
753 /* Perform partial transfers on OBJECT. See target_read_partial
754 and target_write_partial for details of each variant. One, and
755 only one, of readbuf or writebuf must be non-NULL. */
758 sol_thread_xfer_partial (struct target_ops
*ops
, enum target_object object
,
759 const char *annex
, void *readbuf
,
760 const void *writebuf
, ULONGEST offset
, LONGEST len
)
763 struct cleanup
*old_chain
;
765 old_chain
= save_inferior_ptid ();
767 if (is_thread (inferior_ptid
) || /* A thread */
768 !target_thread_alive (inferior_ptid
)) /* An lwp, but not alive */
769 inferior_ptid
= procfs_first_available (); /* Find any live lwp. */
770 /* Note: don't need to call switch_to_thread; we're just reading memory. */
772 if (target_has_execution
)
773 retval
= procfs_ops
.to_xfer_partial (ops
, object
, annex
,
774 readbuf
, writebuf
, offset
, len
);
776 retval
= orig_core_ops
.to_xfer_partial (ops
, object
, annex
,
777 readbuf
, writebuf
, offset
, 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 (ptid_t ptid
)
801 procfs_ops
.to_notice_signals (pid_to_ptid (PIDGET (ptid
)));
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
&& !ptid_equal (inferior_ptid
, null_ptid
))
813 main_ph
.ptid
= inferior_ptid
; /* Save for xfer_memory */
815 push_target (&sol_thread_ops
);
817 inferior_ptid
= lwp_to_thread (inferior_ptid
);
818 if (PIDGET (inferior_ptid
) == -1)
819 inferior_ptid
= main_ph
.ptid
;
821 if (!in_thread_list (inferior_ptid
))
822 add_thread (inferior_ptid
);
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 (ptid_t ptid);
910 returns true if thread still active in inferior.
915 sol_thread_alive (ptid_t ptid
)
917 if (is_thread (ptid
)) /* non-kernel thread */
923 pid
= GET_THREAD (ptid
);
924 if ((val
= p_td_ta_map_id2thr (main_ta
, pid
, &th
)) != TD_OK
)
925 return 0; /* thread not found */
926 if ((val
= p_td_thr_validate (&th
)) != TD_OK
)
927 return 0; /* thread not valid */
928 return 1; /* known thread: return true */
931 /* kernel thread (LWP): let procfs test it */
933 if (target_has_execution
)
934 return procfs_ops
.to_thread_alive (ptid
);
936 return orig_core_ops
.to_thread_alive (ptid
);
941 sol_thread_stop (void)
943 procfs_ops
.to_stop ();
946 /* These routines implement the lower half of the thread_db interface. Ie: the
949 /* Various versions of <proc_service.h> have slightly
950 different function prototypes. In particular, we have
953 struct ps_prochandle * const struct ps_prochandle *
958 Which one you have depends on solaris version and what
959 patches you've applied. On the theory that there are
960 only two major variants, we have configure check the
961 prototype of ps_pdwrite (), and use that info to make
962 appropriate typedefs here. */
964 #ifdef PROC_SERVICE_IS_OLD
965 typedef const struct ps_prochandle
*gdb_ps_prochandle_t
;
966 typedef char *gdb_ps_read_buf_t
;
967 typedef char *gdb_ps_write_buf_t
;
968 typedef int gdb_ps_size_t
;
969 typedef paddr_t gdb_ps_addr_t
;
971 typedef struct ps_prochandle
*gdb_ps_prochandle_t
;
972 typedef void *gdb_ps_read_buf_t
;
973 typedef const void *gdb_ps_write_buf_t
;
974 typedef size_t gdb_ps_size_t
;
975 typedef psaddr_t gdb_ps_addr_t
;
979 /* The next four routines are called by thread_db to tell us to stop and stop
980 a particular process or lwp. Since GDB ensures that these are all stopped
981 by the time we call anything in thread_db, these routines need to do
987 ps_pstop (gdb_ps_prochandle_t ph
)
992 /* Process continue */
995 ps_pcontinue (gdb_ps_prochandle_t ph
)
1003 ps_lstop (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1011 ps_lcontinue (gdb_ps_prochandle_t ph
, lwpid_t lwpid
)
1016 /* Looks up the symbol LD_SYMBOL_NAME in the debugger's symbol table. */
1019 ps_pglobal_lookup (gdb_ps_prochandle_t ph
, const char *ld_object_name
,
1020 const char *ld_symbol_name
, gdb_ps_addr_t
* ld_symbol_addr
)
1022 struct minimal_symbol
*ms
;
1024 ms
= lookup_minimal_symbol (ld_symbol_name
, NULL
, NULL
);
1029 *ld_symbol_addr
= SYMBOL_VALUE_ADDRESS (ms
);
1034 /* Common routine for reading and writing memory. */
1037 rw_common (int dowrite
, const struct ps_prochandle
*ph
, gdb_ps_addr_t addr
,
1038 char *buf
, int size
)
1040 struct cleanup
*old_chain
;
1042 old_chain
= save_inferior_ptid ();
1044 if (is_thread (inferior_ptid
) || /* A thread */
1045 !target_thread_alive (inferior_ptid
)) /* An lwp, but not alive */
1046 inferior_ptid
= procfs_first_available (); /* Find any live lwp. */
1047 /* Note: don't need to call switch_to_thread; we're just reading memory. */
1049 #if defined (__sparcv9)
1050 /* For Sparc64 cross Sparc32, make sure the address has not been
1051 accidentally sign-extended (or whatever) to beyond 32 bits. */
1052 if (bfd_get_arch_size (exec_bfd
) == 32)
1060 /* FIXME: passing 0 as attrib argument. */
1061 if (target_has_execution
)
1062 cc
= procfs_ops
.to_xfer_memory (addr
, buf
, size
,
1063 dowrite
, 0, &procfs_ops
);
1065 cc
= orig_core_ops
.to_xfer_memory (addr
, buf
, size
,
1066 dowrite
, 0, &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_ptid ();
1148 inferior_ptid
= BUILD_LWP (lwpid
, PIDGET (inferior_ptid
));
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_ptid ();
1171 inferior_ptid
= BUILD_LWP (lwpid
, PIDGET (inferior_ptid
));
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_ptid ();
1280 inferior_ptid
= BUILD_LWP (lwpid
, PIDGET (inferior_ptid
));
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_ptid ();
1303 inferior_ptid
= BUILD_LWP (lwpid
, PIDGET (inferior_ptid
));
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 (ptid_t
);
1348 /* FIXME: can't I get the process ID from the prochandle or something?
1351 if (PIDGET (inferior_ptid
) <= 0 || lwpid
<= 0)
1354 ret
= procfs_find_LDT_entry (BUILD_LWP (lwpid
, PIDGET (inferior_ptid
)));
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 (ptid_t ptid
)
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 (ptid
);
1376 if (is_thread (ptid
))
1380 lwp
= thread_to_lwp (ptid
, -2);
1382 if (PIDGET (lwp
) == -1)
1383 sprintf (buf
, "Thread %ld (defunct)", GET_THREAD (ptid
));
1384 else if (PIDGET (lwp
) != -2)
1385 sprintf (buf
, "Thread %ld (LWP %ld)", GET_THREAD (ptid
), GET_LWP (lwp
));
1387 sprintf (buf
, "Thread %ld ", GET_THREAD (ptid
));
1389 else if (GET_LWP (ptid
) != 0)
1390 sprintf (buf
, "LWP %ld ", GET_LWP (ptid
));
1392 sprintf (buf
, "process %d ", PIDGET (ptid
));
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 ptid
= BUILD_THREAD (ti
.ti_tid
, PIDGET (inferior_ptid
));
1414 if (!in_thread_list (ptid
))
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 (PIDGET (inferior_ptid
) == -1)
1429 printf_filtered ("No process.\n");
1432 procfs_ops
.to_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", DEPRECATED_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", DEPRECATED_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 sol_find_memory_regions (int (*func
) (CORE_ADDR
,
1552 return procfs_ops
.to_find_memory_regions (func
, data
);
1556 sol_make_note_section (bfd
*obfd
, int *note_size
)
1558 return procfs_ops
.to_make_corefile_notes (obfd
, note_size
);
1562 ignore (CORE_ADDR addr
, char *contents
)
1569 init_sol_thread_ops (void)
1571 sol_thread_ops
.to_shortname
= "solaris-threads";
1572 sol_thread_ops
.to_longname
= "Solaris threads and pthread.";
1573 sol_thread_ops
.to_doc
= "Solaris threads and pthread support.";
1574 sol_thread_ops
.to_open
= sol_thread_open
;
1575 sol_thread_ops
.to_attach
= sol_thread_attach
;
1576 sol_thread_ops
.to_detach
= sol_thread_detach
;
1577 sol_thread_ops
.to_resume
= sol_thread_resume
;
1578 sol_thread_ops
.to_wait
= sol_thread_wait
;
1579 sol_thread_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1580 sol_thread_ops
.to_store_registers
= sol_thread_store_registers
;
1581 sol_thread_ops
.to_prepare_to_store
= sol_thread_prepare_to_store
;
1582 sol_thread_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1583 sol_thread_ops
.to_xfer_partial
= sol_thread_xfer_partial
;
1584 sol_thread_ops
.to_files_info
= sol_thread_files_info
;
1585 sol_thread_ops
.to_insert_breakpoint
= memory_insert_breakpoint
;
1586 sol_thread_ops
.to_remove_breakpoint
= memory_remove_breakpoint
;
1587 sol_thread_ops
.to_terminal_init
= terminal_init_inferior
;
1588 sol_thread_ops
.to_terminal_inferior
= terminal_inferior
;
1589 sol_thread_ops
.to_terminal_ours_for_output
= terminal_ours_for_output
;
1590 sol_thread_ops
.to_terminal_ours
= terminal_ours
;
1591 sol_thread_ops
.to_terminal_save_ours
= terminal_save_ours
;
1592 sol_thread_ops
.to_terminal_info
= child_terminal_info
;
1593 sol_thread_ops
.to_kill
= sol_thread_kill_inferior
;
1594 sol_thread_ops
.to_create_inferior
= sol_thread_create_inferior
;
1595 sol_thread_ops
.to_mourn_inferior
= sol_thread_mourn_inferior
;
1596 sol_thread_ops
.to_can_run
= sol_thread_can_run
;
1597 sol_thread_ops
.to_notice_signals
= sol_thread_notice_signals
;
1598 sol_thread_ops
.to_thread_alive
= sol_thread_alive
;
1599 sol_thread_ops
.to_pid_to_str
= solaris_pid_to_str
;
1600 sol_thread_ops
.to_find_new_threads
= sol_find_new_threads
;
1601 sol_thread_ops
.to_stop
= sol_thread_stop
;
1602 sol_thread_ops
.to_stratum
= process_stratum
;
1603 sol_thread_ops
.to_has_all_memory
= 1;
1604 sol_thread_ops
.to_has_memory
= 1;
1605 sol_thread_ops
.to_has_stack
= 1;
1606 sol_thread_ops
.to_has_registers
= 1;
1607 sol_thread_ops
.to_has_execution
= 1;
1608 sol_thread_ops
.to_has_thread_control
= tc_none
;
1609 sol_thread_ops
.to_find_memory_regions
= sol_find_memory_regions
;
1610 sol_thread_ops
.to_make_corefile_notes
= sol_make_note_section
;
1611 sol_thread_ops
.to_magic
= OPS_MAGIC
;
1616 init_sol_core_ops (void)
1618 sol_core_ops
.to_shortname
= "solaris-core";
1619 sol_core_ops
.to_longname
= "Solaris core threads and pthread.";
1620 sol_core_ops
.to_doc
= "Solaris threads and pthread support for core files.";
1621 sol_core_ops
.to_open
= sol_core_open
;
1622 sol_core_ops
.to_close
= sol_core_close
;
1623 sol_core_ops
.to_attach
= sol_thread_attach
;
1624 sol_core_ops
.to_detach
= sol_core_detach
;
1625 sol_core_ops
.to_fetch_registers
= sol_thread_fetch_registers
;
1626 sol_core_ops
.to_xfer_memory
= sol_thread_xfer_memory
;
1627 sol_core_ops
.to_xfer_partial
= sol_thread_xfer_partial
;
1628 sol_core_ops
.to_files_info
= sol_core_files_info
;
1629 sol_core_ops
.to_insert_breakpoint
= ignore
;
1630 sol_core_ops
.to_remove_breakpoint
= ignore
;
1631 sol_core_ops
.to_create_inferior
= sol_thread_create_inferior
;
1632 sol_core_ops
.to_stratum
= core_stratum
;
1633 sol_core_ops
.to_has_memory
= 1;
1634 sol_core_ops
.to_has_stack
= 1;
1635 sol_core_ops
.to_has_registers
= 1;
1636 sol_core_ops
.to_has_thread_control
= tc_none
;
1637 sol_core_ops
.to_thread_alive
= sol_thread_alive
;
1638 sol_core_ops
.to_pid_to_str
= solaris_pid_to_str
;
1639 /* On Solaris/x86, when debugging a threaded core file from process <n>,
1640 the following causes "info threads" to produce "procfs: couldn't find pid
1641 <n> in procinfo list" where <n> is the pid of the process that produced
1642 the core file. Disable it for now. */
1643 /* sol_core_ops.to_find_new_threads = sol_find_new_threads; */
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
);