1 /* Low level interface for debugging AIX 4.3+ pthreads.
3 Copyright 1999, 2000, 2002 Free Software Foundation, Inc.
4 Written by Nick Duffek <nsd@redhat.com>.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 /* This module uses the libpthdebug.a library provided by AIX 4.3+ for
25 debugging pthread applications.
27 Some name prefix conventions:
28 pthdb_ provided by libpthdebug.a
29 pdc_ callbacks that this module provides to libpthdebug.a
30 pd_ variables or functions interfacing with libpthdebug.a
32 libpthdebug peculiarities:
34 - pthdb_ptid_pthread() is prototyped in <sys/pthdebug.h>, but
35 it's not documented, and after several calls it stops working
36 and causes other libpthdebug functions to fail.
38 - pthdb_tid_pthread() doesn't always work after
39 pthdb_session_update(), but it does work after cycling through
40 all threads using pthdb_pthread().
45 #include "gdb_assert.h"
46 #include "gdbthread.h"
53 #include "coff/internal.h" /* for libcoff.h */
54 #include "bfd/libcoff.h" /* for xcoff_data */
58 #include <sys/types.h>
59 #include <sys/ptrace.h>
65 #include <sys/pthdebug.h>
67 /* Whether to emit debugging output. */
68 static int debug_aix_thread
;
70 /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */
71 #ifndef PTHDB_VERSION_3
72 #define pthdb_tid_t tid_t
75 /* Return whether to treat PID as a debuggable thread id. */
77 #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0)
79 /* Build a thread ptid. */
80 #define BUILD_THREAD(TID, PID) ptid_build (PID, 0, TID)
82 /* Build and lwp ptid. */
83 #define BUILD_LWP(LWP, PID) MERGEPID (PID, LWP)
85 /* pthdb_user_t value that we pass to pthdb functions. 0 causes
86 PTHDB_BAD_USER errors, so use 1. */
90 /* Success and failure values returned by pthdb callbacks. */
92 #define PDC_SUCCESS PTHDB_SUCCESS
93 #define PDC_FAILURE PTHDB_CALLBACK
95 /* Private data attached to each element in GDB's thread list. */
97 struct private_thread_info
{
98 pthdb_pthread_t pdtid
; /* thread's libpthdebug id */
99 pthdb_tid_t tid
; /* kernel thread id */
102 /* Information about a thread of which libpthdebug is aware. */
105 pthdb_pthread_t pdtid
;
110 /* This module's target-specific operations, active while pd_able is true. */
112 static struct target_ops aix_thread_ops
;
114 /* Copy of the target over which ops is pushed.
115 This is more convenient than a pointer to child_ops or core_ops,
116 because they lack current_target's default callbacks. */
118 static struct target_ops base_target
;
120 /* Address of the function that libpthread will call when libpthdebug
121 is ready to be initialized. */
123 static CORE_ADDR pd_brk_addr
;
125 /* Whether the current application is debuggable by pthdb. */
127 static int pd_able
= 0;
129 /* Whether a threaded application is being debugged. */
131 static int pd_active
= 0;
133 /* Whether the current architecture is 64-bit.
134 Only valid when pd_able is true. */
138 /* Saved pointer to previous owner of target_new_objfile_hook. */
140 static void (*target_new_objfile_chain
)(struct objfile
*);
142 /* Forward declarations for pthdb callbacks. */
144 static int pdc_symbol_addrs (pthdb_user_t
, pthdb_symbol_t
*, int);
145 static int pdc_read_data (pthdb_user_t
, void *, pthdb_addr_t
, size_t);
146 static int pdc_write_data (pthdb_user_t
, void *, pthdb_addr_t
, size_t);
147 static int pdc_read_regs (pthdb_user_t user
, pthdb_tid_t tid
,
148 unsigned long long flags
,
149 pthdb_context_t
*context
);
150 static int pdc_write_regs (pthdb_user_t user
, pthdb_tid_t tid
,
151 unsigned long long flags
,
152 pthdb_context_t
*context
);
153 static int pdc_alloc (pthdb_user_t
, size_t, void **);
154 static int pdc_realloc (pthdb_user_t
, void *, size_t, void **);
155 static int pdc_dealloc (pthdb_user_t
, void *);
157 /* pthdb callbacks. */
159 static pthdb_callbacks_t pd_callbacks
= {
171 /* Current pthdb session. */
173 static pthdb_session_t pd_session
;
175 /* Return a printable representation of pthdebug function return
179 pd_status2str (int status
)
183 case PTHDB_SUCCESS
: return "SUCCESS";
184 case PTHDB_NOSYS
: return "NOSYS";
185 case PTHDB_NOTSUP
: return "NOTSUP";
186 case PTHDB_BAD_VERSION
: return "BAD_VERSION";
187 case PTHDB_BAD_USER
: return "BAD_USER";
188 case PTHDB_BAD_SESSION
: return "BAD_SESSION";
189 case PTHDB_BAD_MODE
: return "BAD_MODE";
190 case PTHDB_BAD_FLAGS
: return "BAD_FLAGS";
191 case PTHDB_BAD_CALLBACK
: return "BAD_CALLBACK";
192 case PTHDB_BAD_POINTER
: return "BAD_POINTER";
193 case PTHDB_BAD_CMD
: return "BAD_CMD";
194 case PTHDB_BAD_PTHREAD
: return "BAD_PTHREAD";
195 case PTHDB_BAD_ATTR
: return "BAD_ATTR";
196 case PTHDB_BAD_MUTEX
: return "BAD_MUTEX";
197 case PTHDB_BAD_MUTEXATTR
: return "BAD_MUTEXATTR";
198 case PTHDB_BAD_COND
: return "BAD_COND";
199 case PTHDB_BAD_CONDATTR
: return "BAD_CONDATTR";
200 case PTHDB_BAD_RWLOCK
: return "BAD_RWLOCK";
201 case PTHDB_BAD_RWLOCKATTR
: return "BAD_RWLOCKATTR";
202 case PTHDB_BAD_KEY
: return "BAD_KEY";
203 case PTHDB_BAD_PTID
: return "BAD_PTID";
204 case PTHDB_BAD_TID
: return "BAD_TID";
205 case PTHDB_CALLBACK
: return "CALLBACK";
206 case PTHDB_CONTEXT
: return "CONTEXT";
207 case PTHDB_HELD
: return "HELD";
208 case PTHDB_NOT_HELD
: return "NOT_HELD";
209 case PTHDB_MEMORY
: return "MEMORY";
210 case PTHDB_NOT_PTHREADED
: return "NOT_PTHREADED";
211 case PTHDB_SYMBOL
: return "SYMBOL";
212 case PTHDB_NOT_AVAIL
: return "NOT_AVAIL";
213 case PTHDB_INTERNAL
: return "INTERNAL";
214 default: return "UNKNOWN";
218 /* A call to ptrace(REQ, ID, ...) just returned RET. Check for
219 exceptional conditions and either return nonlocally or else return
220 1 for success and 0 for failure. */
223 ptrace_check (int req
, int id
, int ret
)
225 if (ret
== 0 && !errno
)
228 /* According to ptrace(2), ptrace may fail with EPERM if "the
229 Identifier parameter corresponds to a kernel thread which is
230 stopped in kernel mode and whose computational state cannot be
231 read or written." This happens quite often with register reads. */
238 if (ret
== -1 && errno
== EPERM
)
240 if (debug_aix_thread
)
241 fprintf_unfiltered (gdb_stdlog
,
242 "ptrace (%d, %d) = %d (errno = %d)",
243 req
, id
, ret
, errno
);
244 return ret
== -1 ? 0 : 1;
248 error ("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)",
249 req
, id
, ret
, errno
, safe_strerror (errno
));
250 return 0; /* Not reached. */
253 /* Call ptracex (REQ, ID, ADDR, DATA, BUF). Return success. */
256 ptrace64aix (int req
, int id
, long long addr
, int data
, int *buf
)
259 return ptrace_check (req
, id
, ptracex (req
, id
, addr
, data
, buf
));
262 /* Call ptrace (REQ, ID, ADDR, DATA, BUF). Return success. */
265 ptrace32 (int req
, int id
, int *addr
, int data
, int *buf
)
268 return ptrace_check (req
, id
,
269 ptrace (req
, id
, (int *) addr
, data
, buf
));
272 /* If *PIDP is a composite process/thread id, convert it to a
276 pid_to_prc (ptid_t
*ptidp
)
282 *ptidp
= pid_to_ptid (PIDGET (ptid
));
285 /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to
286 the address of SYMBOLS[<i>].name. */
289 pdc_symbol_addrs (pthdb_user_t user
, pthdb_symbol_t
*symbols
, int count
)
291 struct minimal_symbol
*ms
;
295 if (debug_aix_thread
)
296 fprintf_unfiltered (gdb_stdlog
,
297 "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)",
298 user
, (long) symbols
, count
);
300 for (i
= 0; i
< count
; i
++)
302 name
= symbols
[i
].name
;
303 if (debug_aix_thread
)
304 fprintf_unfiltered (gdb_stdlog
,
305 " symbols[%d].name = \"%s\"", i
, name
);
311 if (!(ms
= lookup_minimal_symbol (name
, NULL
, NULL
)))
313 if (debug_aix_thread
)
314 fprintf_unfiltered (gdb_stdlog
, " returning PDC_FAILURE");
317 symbols
[i
].addr
= SYMBOL_VALUE_ADDRESS (ms
);
319 if (debug_aix_thread
)
320 fprintf_unfiltered (gdb_stdlog
, " symbols[%d].addr = 0x%llx",
323 if (debug_aix_thread
)
324 fprintf_unfiltered (gdb_stdlog
, " returning PDC_SUCCESS");
328 /* Read registers call back function should be able to read the
329 context information of a debuggee kernel thread from an active
330 process or from a core file. The information should be formatted
331 in context64 form for both 32-bit and 64-bit process.
332 If successful return 0, else non-zero is returned. */
335 pdc_read_regs (pthdb_user_t user
,
337 unsigned long long flags
,
338 pthdb_context_t
*context
)
340 /* This function doesn't appear to be used, so we could probably
341 just return 0 here. HOWEVER, if it is not defined, the OS will
342 complain and several thread debug functions will fail. In case
343 this is needed, I have implemented what I think it should do,
344 however this code is untested. */
349 struct ptxsprs sprs64
;
350 struct ptsprs sprs32
;
352 if (debug_aix_thread
)
353 fprintf_unfiltered (gdb_stdlog
, "pdc_read_regs tid=%d flags=%llx\n",
356 /* General-purpose registers. */
357 if (flags
& PTHDB_FLAG_GPRS
)
361 if (!ptrace64aix (PTT_READ_GPRS
, tid
,
362 (unsigned long) gprs64
, 0, NULL
))
363 memset (gprs64
, 0, sizeof (gprs64
));
364 memcpy (context
->gpr
, gprs64
, sizeof(gprs64
));
368 if (!ptrace32 (PTT_READ_GPRS
, tid
, gprs32
, 0, NULL
))
369 memset (gprs32
, 0, sizeof (gprs32
));
370 memcpy (context
->gpr
, gprs32
, sizeof(gprs32
));
374 /* Floating-point registers. */
375 if (flags
& PTHDB_FLAG_FPRS
)
377 if (!ptrace32 (PTT_READ_FPRS
, tid
, (int *) fprs
, 0, NULL
))
378 memset (fprs
, 0, sizeof (fprs
));
379 memcpy (context
->fpr
, fprs
, sizeof(fprs
));
382 /* Special-purpose registers. */
383 if (flags
& PTHDB_FLAG_SPRS
)
387 if (!ptrace64aix (PTT_READ_SPRS
, tid
,
388 (unsigned long) &sprs64
, 0, NULL
))
389 memset (&sprs64
, 0, sizeof (sprs64
));
390 memcpy (&context
->msr
, &sprs64
, sizeof(sprs64
));
394 if (!ptrace32 (PTT_READ_SPRS
, tid
, (int *) &sprs32
, 0, NULL
))
395 memset (&sprs32
, 0, sizeof (sprs32
));
396 memcpy (&context
->msr
, &sprs32
, sizeof(sprs32
));
402 /* Write register function should be able to write requested context
403 information to specified debuggee's kernel thread id.
404 If successful return 0, else non-zero is returned. */
407 pdc_write_regs (pthdb_user_t user
,
409 unsigned long long flags
,
410 pthdb_context_t
*context
)
412 /* This function doesn't appear to be used, so we could probably
413 just return 0 here. HOWEVER, if it is not defined, the OS will
414 complain and several thread debug functions will fail. In case
415 this is needed, I have implemented what I think it should do,
416 however this code is untested. */
418 if (debug_aix_thread
)
419 fprintf_unfiltered (gdb_stdlog
, "pdc_write_regs tid=%d flags=%llx\n",
422 /* General-purpose registers. */
423 if (flags
& PTHDB_FLAG_GPRS
)
426 ptrace64aix (PTT_WRITE_GPRS
, tid
,
427 (unsigned long) context
->gpr
, 0, NULL
);
429 ptrace32 (PTT_WRITE_GPRS
, tid
, (int *) context
->gpr
, 0, NULL
);
432 /* Floating-point registers. */
433 if (flags
& PTHDB_FLAG_FPRS
)
435 ptrace32 (PTT_WRITE_FPRS
, tid
, (int *) context
->fpr
, 0, NULL
);
438 /* Special-purpose registers. */
439 if (flags
& PTHDB_FLAG_SPRS
)
443 ptrace64aix (PTT_WRITE_SPRS
, tid
,
444 (unsigned long) &context
->msr
, 0, NULL
);
448 ptrace32 (PTT_WRITE_SPRS
, tid
, (int *) &context
->msr
, 0, NULL
);
454 /* pthdb callback: read LEN bytes from process ADDR into BUF. */
457 pdc_read_data (pthdb_user_t user
, void *buf
,
458 pthdb_addr_t addr
, size_t len
)
462 if (debug_aix_thread
)
463 fprintf_unfiltered (gdb_stdlog
,
464 "pdc_read_data (user = %ld, buf = 0x%lx, addr = 0x%llx, len = %ld)",
465 user
, (long) buf
, addr
, len
);
467 status
= target_read_memory (addr
, buf
, len
);
468 ret
= status
== 0 ? PDC_SUCCESS
: PDC_FAILURE
;
470 if (debug_aix_thread
)
471 fprintf_unfiltered (gdb_stdlog
, " status=%d, returning %s",
472 status
, pd_status2str (ret
));
476 /* pthdb callback: write LEN bytes from BUF to process ADDR. */
479 pdc_write_data (pthdb_user_t user
, void *buf
,
480 pthdb_addr_t addr
, size_t len
)
484 if (debug_aix_thread
)
485 fprintf_unfiltered (gdb_stdlog
,
486 "pdc_write_data (user = %ld, buf = 0x%lx, addr = 0x%llx, len = %ld)",
487 user
, (long) buf
, addr
, len
);
489 status
= target_write_memory (addr
, buf
, len
);
490 ret
= status
== 0 ? PDC_SUCCESS
: PDC_FAILURE
;
492 if (debug_aix_thread
)
493 fprintf_unfiltered (gdb_stdlog
, " status=%d, returning %s", status
,
494 pd_status2str (ret
));
498 /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it
502 pdc_alloc (pthdb_user_t user
, size_t len
, void **bufp
)
504 if (debug_aix_thread
)
505 fprintf_unfiltered (gdb_stdlog
,
506 "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)",
507 user
, len
, (long) bufp
);
508 *bufp
= xmalloc (len
);
509 if (debug_aix_thread
)
510 fprintf_unfiltered (gdb_stdlog
,
511 " malloc returned 0x%lx", (long) *bufp
);
513 /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never
516 return *bufp
? PDC_SUCCESS
: PDC_FAILURE
;
519 /* pthdb callback: reallocate BUF, which was allocated by the alloc or
520 realloc callback, so that it contains LEN bytes, and store a
521 pointer to the result in BUFP. */
524 pdc_realloc (pthdb_user_t user
, void *buf
, size_t len
, void **bufp
)
526 if (debug_aix_thread
)
527 fprintf_unfiltered (gdb_stdlog
,
528 "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)",
529 user
, (long) buf
, len
, (long) bufp
);
530 *bufp
= xrealloc (buf
, len
);
531 if (debug_aix_thread
)
532 fprintf_unfiltered (gdb_stdlog
,
533 " realloc returned 0x%lx", (long) *bufp
);
534 return *bufp
? PDC_SUCCESS
: PDC_FAILURE
;
537 /* pthdb callback: free BUF, which was allocated by the alloc or
541 pdc_dealloc (pthdb_user_t user
, void *buf
)
543 if (debug_aix_thread
)
544 fprintf_unfiltered (gdb_stdlog
,
545 "pdc_free (user = %ld, buf = 0x%lx)", user
,
551 /* Return a printable representation of pthread STATE. */
554 state2str (pthdb_state_t state
)
558 case PST_IDLE
: return "idle"; /* being created */
559 case PST_RUN
: return "running"; /* running */
560 case PST_SLEEP
: return "sleeping"; /* awaiting an event */
561 case PST_READY
: return "ready"; /* runnable */
562 case PST_TERM
: return "finished"; /* awaiting a join/detach */
563 default: return "unknown";
567 /* qsort() comparison function for sorting pd_thread structs by pthid. */
570 pcmp (const void *p1v
, const void *p2v
)
572 struct pd_thread
*p1
= (struct pd_thread
*) p1v
;
573 struct pd_thread
*p2
= (struct pd_thread
*) p2v
;
574 return p1
->pthid
< p2
->pthid
? -1 : p1
->pthid
> p2
->pthid
;
577 /* iterate_over_threads() callback for counting GDB threads. */
580 giter_count (struct thread_info
*thread
, void *countp
)
586 /* iterate_over_threads() callback for accumulating GDB thread pids. */
589 giter_accum (struct thread_info
*thread
, void *bufp
)
591 **(struct thread_info
***) bufp
= thread
;
592 (*(struct thread_info
***) bufp
)++;
596 /* ptid comparison function */
599 ptid_cmp (ptid_t ptid1
, ptid_t ptid2
)
603 if (ptid_get_pid (ptid1
) < ptid_get_pid (ptid2
))
605 else if (ptid_get_pid (ptid1
) > ptid_get_pid (ptid2
))
607 else if (ptid_get_tid (ptid1
) < ptid_get_tid (ptid2
))
609 else if (ptid_get_tid (ptid1
) > ptid_get_tid (ptid2
))
611 else if (ptid_get_lwp (ptid1
) < ptid_get_lwp (ptid2
))
613 else if (ptid_get_lwp (ptid1
) > ptid_get_lwp (ptid2
))
619 /* qsort() comparison function for sorting thread_info structs by pid. */
622 gcmp (const void *t1v
, const void *t2v
)
624 struct thread_info
*t1
= *(struct thread_info
**) t1v
;
625 struct thread_info
*t2
= *(struct thread_info
**) t2v
;
626 return ptid_cmp (t1
->ptid
, t2
->ptid
);
629 /* Synchronize GDB's thread list with libpthdebug's.
631 There are some benefits of doing this every time the inferior stops:
633 - allows users to run thread-specific commands without needing to
634 run "info threads" first
636 - helps pthdb_tid_pthread() work properly (see "libpthdebug
637 peculiarities" at the top of this module)
639 - simplifies the demands placed on libpthdebug, which seems to
640 have difficulty with certain call patterns */
643 sync_threadlists (void)
645 int cmd
, status
, infpid
;
646 int pcount
, psize
, pi
, gcount
, gi
;
647 struct pd_thread
*pbuf
;
648 struct thread_info
**gbuf
, **g
, *thread
;
649 pthdb_pthread_t pdtid
;
653 /* Accumulate an array of libpthdebug threads sorted by pthread id. */
657 pbuf
= (struct pd_thread
*) xmalloc (psize
* sizeof *pbuf
);
659 for (cmd
= PTHDB_LIST_FIRST
;; cmd
= PTHDB_LIST_NEXT
)
661 status
= pthdb_pthread (pd_session
, &pdtid
, cmd
);
662 if (status
!= PTHDB_SUCCESS
|| pdtid
== PTHDB_INVALID_PTHREAD
)
665 status
= pthdb_pthread_ptid (pd_session
, pdtid
, &pthid
);
666 if (status
!= PTHDB_SUCCESS
|| pthid
== PTHDB_INVALID_PTID
)
672 pbuf
= (struct pd_thread
*) xrealloc (pbuf
,
673 psize
* sizeof *pbuf
);
675 pbuf
[pcount
].pdtid
= pdtid
;
676 pbuf
[pcount
].pthid
= pthid
;
680 for (pi
= 0; pi
< pcount
; pi
++)
682 status
= pthdb_pthread_tid (pd_session
, pbuf
[pi
].pdtid
, &tid
);
683 if (status
!= PTHDB_SUCCESS
)
684 tid
= PTHDB_INVALID_TID
;
688 qsort (pbuf
, pcount
, sizeof *pbuf
, pcmp
);
690 /* Accumulate an array of GDB threads sorted by pid. */
693 iterate_over_threads (giter_count
, &gcount
);
694 g
= gbuf
= (struct thread_info
**) xmalloc (gcount
* sizeof *gbuf
);
695 iterate_over_threads (giter_accum
, &g
);
696 qsort (gbuf
, gcount
, sizeof *gbuf
, gcmp
);
698 /* Apply differences between the two arrays to GDB's thread list. */
700 infpid
= PIDGET (inferior_ptid
);
701 for (pi
= gi
= 0; pi
< pcount
|| gi
< gcount
;)
705 delete_thread (gbuf
[gi
]->ptid
);
708 else if (gi
== gcount
)
710 thread
= add_thread (BUILD_THREAD (pbuf
[pi
].pthid
, infpid
));
711 thread
->private = xmalloc (sizeof (struct private_thread_info
));
712 thread
->private->pdtid
= pbuf
[pi
].pdtid
;
713 thread
->private->tid
= pbuf
[pi
].tid
;
721 pptid
= BUILD_THREAD (pbuf
[pi
].pthid
, infpid
);
722 gptid
= gbuf
[gi
]->ptid
;
723 pdtid
= pbuf
[pi
].pdtid
;
726 cmp_result
= ptid_cmp (pptid
, gptid
);
730 gbuf
[gi
]->private->pdtid
= pdtid
;
731 gbuf
[gi
]->private->tid
= tid
;
735 else if (cmp_result
> 0)
737 delete_thread (gptid
);
742 thread
= add_thread (pptid
);
743 thread
->private = xmalloc (sizeof (struct private_thread_info
));
744 thread
->private->pdtid
= pdtid
;
745 thread
->private->tid
= tid
;
755 /* Iterate_over_threads() callback for locating a thread whose kernel
756 thread just received a trap signal. */
759 iter_trap (struct thread_info
*thread
, void *unused
)
761 struct thrdsinfo64 thrinf
;
764 /* getthrds(3) isn't prototyped in any AIX 4.3.3 #include file. */
765 extern int getthrds (pid_t
, struct thrdsinfo64
*,
766 int, pthdb_tid_t
*, int);
768 tid
= thread
->private->tid
;
769 if (tid
== PTHDB_INVALID_TID
)
772 if (getthrds (PIDGET (inferior_ptid
), &thrinf
,
773 sizeof (thrinf
), &tid
, 1) != 1)
776 return thrinf
.ti_cursig
== SIGTRAP
;
779 /* Synchronize libpthdebug's state with the inferior and with GDB,
780 generate a composite process/thread <pid> for the current thread,
781 set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */
784 pd_update (int set_infpid
)
788 struct thread_info
*thread
;
791 return inferior_ptid
;
793 status
= pthdb_session_update (pd_session
);
794 if (status
!= PTHDB_SUCCESS
)
795 return inferior_ptid
;
799 /* Define "current thread" as one that just received a trap signal. */
801 thread
= iterate_over_threads (iter_trap
, NULL
);
803 ptid
= inferior_ptid
;
808 inferior_ptid
= ptid
;
813 /* Try to start debugging threads in the current process.
814 If successful and SET_INFPID, set inferior_ptid to reflect the
818 pd_activate (int set_infpid
)
822 status
= pthdb_session_init (PD_USER
, arch64
? PEM_64BIT
: PEM_32BIT
,
823 PTHDB_FLAG_REGS
, &pd_callbacks
,
825 if (status
!= PTHDB_SUCCESS
)
827 return inferior_ptid
;
830 return pd_update (set_infpid
);
833 /* Undo the effects of pd_activate(). */
840 pthdb_session_destroy (pd_session
);
842 pid_to_prc (&inferior_ptid
);
846 /* An object file has just been loaded. Check whether the current
847 application is pthreaded, and if so, prepare for thread debugging. */
854 struct minimal_symbol
*ms
;
856 /* Don't initialize twice. */
860 /* Check application word size. */
861 arch64
= REGISTER_RAW_SIZE (0) == 8;
863 /* Check whether the application is pthreaded. */
865 status
= pthdb_session_pthreaded (PD_USER
, PTHDB_FLAG_REGS
,
866 &pd_callbacks
, &stub_name
);
867 if ((status
!= PTHDB_SUCCESS
&&
868 status
!= PTHDB_NOT_PTHREADED
) || !stub_name
)
871 /* Set a breakpoint on the returned stub function. */
872 if (!(ms
= lookup_minimal_symbol (stub_name
, NULL
, NULL
)))
874 pd_brk_addr
= SYMBOL_VALUE_ADDRESS (ms
);
875 if (!create_thread_event_breakpoint (pd_brk_addr
))
878 /* Prepare for thread debugging. */
879 base_target
= current_target
;
880 push_target (&aix_thread_ops
);
883 /* If we're debugging a core file or an attached inferior, the
884 pthread library may already have been initialized, so try to
885 activate thread debugging. */
889 /* Undo the effects of pd_enable(). */
899 unpush_target (&aix_thread_ops
);
902 /* target_new_objfile_hook callback.
904 If OBJFILE is non-null, check whether a threaded application is
905 being debugged, and if so, prepare for thread debugging.
907 If OBJFILE is null, stop debugging threads. */
910 new_objfile (struct objfile
*objfile
)
917 if (target_new_objfile_chain
)
918 target_new_objfile_chain (objfile
);
921 /* Attach to process specified by ARGS. */
924 aix_thread_attach (char *args
, int from_tty
)
926 base_target
.to_attach (args
, from_tty
);
930 /* Detach from the process attached to by aix_thread_attach(). */
933 aix_thread_detach (char *args
, int from_tty
)
936 base_target
.to_detach (args
, from_tty
);
939 /* Tell the inferior process to continue running thread PID if != -1
940 and all threads otherwise. */
943 aix_thread_resume (ptid_t ptid
, int step
, enum target_signal sig
)
945 struct thread_info
*thread
;
950 struct cleanup
*cleanup
= save_inferior_ptid ();
951 inferior_ptid
= pid_to_ptid (PIDGET (inferior_ptid
));
952 base_target
.to_resume (ptid
, step
, sig
);
953 do_cleanups (cleanup
);
957 thread
= find_thread_pid (ptid
);
959 error ("aix-thread resume: unknown pthread %ld",
962 tid
[0] = thread
->private->tid
;
963 if (tid
[0] == PTHDB_INVALID_TID
)
964 error ("aix-thread resume: no tid for pthread %ld",
969 ptrace64aix (PTT_CONTINUE
, tid
[0], 1,
970 target_signal_to_host (sig
), (int *) tid
);
972 ptrace32 (PTT_CONTINUE
, tid
[0], (int *) 1,
973 target_signal_to_host (sig
), (int *) tid
);
977 /* Wait for thread/process ID if != -1 or for any thread otherwise.
978 If an error occurs, return -1, else return the pid of the stopped
982 aix_thread_wait (ptid_t ptid
, struct target_waitstatus
*status
)
984 struct cleanup
*cleanup
= save_inferior_ptid ();
988 inferior_ptid
= pid_to_ptid (PIDGET (inferior_ptid
));
989 ptid
= base_target
.to_wait (ptid
, status
);
990 do_cleanups (cleanup
);
992 if (PIDGET (ptid
) == -1)
993 return pid_to_ptid (-1);
995 /* Check whether libpthdebug might be ready to be initialized. */
996 if (!pd_active
&& status
->kind
== TARGET_WAITKIND_STOPPED
&&
997 status
->value
.sig
== TARGET_SIGNAL_TRAP
&&
998 read_pc_pid (ptid
) - DECR_PC_AFTER_BREAK
== pd_brk_addr
)
999 return pd_activate (0);
1001 return pd_update (0);
1004 /* Record that the 64-bit general-purpose registers contain VALS. */
1007 supply_gprs64 (uint64_t *vals
)
1011 for (regno
= 0; regno
< 32; regno
++)
1012 supply_register (regno
, (char *) (vals
+ regno
));
1015 /* Record that 32-bit register REGNO contains VAL. */
1018 supply_reg32 (int regno
, uint32_t val
)
1020 supply_register (regno
, (char *) &val
);
1023 /* Record that the floating-point registers contain VALS. */
1026 supply_fprs (double *vals
)
1030 for (regno
= 0; regno
< 32; regno
++)
1031 supply_register (regno
+ FP0_REGNUM
, (char *) (vals
+ regno
));
1034 /* Record that the special registers contain the specified 64-bit and
1038 supply_sprs64 (uint64_t iar
, uint64_t msr
, uint32_t cr
,
1039 uint64_t lr
, uint64_t ctr
, uint32_t xer
)
1041 int regno
= FIRST_UISA_SP_REGNUM
;
1043 supply_register (regno
, (char *) &iar
);
1044 supply_register (regno
+ 1, (char *) &msr
);
1045 supply_register (regno
+ 2, (char *) &cr
);
1046 supply_register (regno
+ 3, (char *) &lr
);
1047 supply_register (regno
+ 4, (char *) &ctr
);
1048 supply_register (regno
+ 5, (char *) &xer
);
1051 /* Record that the special registers contain the specified 32-bit
1055 supply_sprs32 (uint32_t iar
, uint32_t msr
, uint32_t cr
,
1056 uint32_t lr
, uint32_t ctr
, uint32_t xer
)
1058 int regno
= FIRST_UISA_SP_REGNUM
;
1060 supply_register (regno
, (char *) &iar
);
1061 supply_register (regno
+ 1, (char *) &msr
);
1062 supply_register (regno
+ 2, (char *) &cr
);
1063 supply_register (regno
+ 3, (char *) &lr
);
1064 supply_register (regno
+ 4, (char *) &ctr
);
1065 supply_register (regno
+ 5, (char *) &xer
);
1068 /* Fetch all registers from pthread PDTID, which doesn't have a kernel
1071 There's no way to query a single register from a non-kernel
1072 pthread, so there's no need for a single-register version of this
1076 fetch_regs_user_thread (pthdb_pthread_t pdtid
)
1079 pthdb_context_t ctx
;
1081 if (debug_aix_thread
)
1082 fprintf_unfiltered (gdb_stdlog
,
1083 "fetch_regs_user_thread %lx\n", (long) pdtid
);
1084 status
= pthdb_pthread_context (pd_session
, pdtid
, &ctx
);
1085 if (status
!= PTHDB_SUCCESS
)
1086 error ("aix-thread: fetch_registers: pthdb_pthread_context returned %s",
1087 pd_status2str (status
));
1089 /* General-purpose registers. */
1092 supply_gprs64 (ctx
.gpr
);
1094 for (i
= 0; i
< 32; i
++)
1095 supply_reg32 (i
, ctx
.gpr
[i
]);
1097 /* Floating-point registers. */
1099 supply_fprs (ctx
.fpr
);
1101 /* Special registers. */
1104 supply_sprs64 (ctx
.iar
, ctx
.msr
, ctx
.cr
, ctx
.lr
, ctx
.ctr
, ctx
.xer
);
1106 supply_sprs32 (ctx
.iar
, ctx
.msr
, ctx
.cr
, ctx
.lr
, ctx
.ctr
, ctx
.xer
);
1109 /* Fetch register REGNO if != -1 or all registers otherwise from
1112 AIX provides a way to query all of a kernel thread's GPRs, FPRs, or
1113 SPRs, but there's no way to query individual registers within those
1114 groups. Therefore, if REGNO != -1, this function fetches an entire
1117 Unfortunately, kernel thread register queries often fail with
1118 EPERM, indicating that the thread is in kernel space. This breaks
1119 backtraces of threads other than the current one. To make that
1120 breakage obvious without throwing an error to top level (which is
1121 bad e.g. during "info threads" output), zero registers that can't
1125 fetch_regs_kernel_thread (int regno
, pthdb_tid_t tid
)
1127 uint64_t gprs64
[32];
1128 uint32_t gprs32
[32];
1130 struct ptxsprs sprs64
;
1131 struct ptsprs sprs32
;
1134 if (debug_aix_thread
)
1135 fprintf_unfiltered (gdb_stdlog
,
1136 "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n",
1137 (long) tid
, regno
, arch64
);
1139 /* General-purpose registers. */
1140 if (regno
== -1 || regno
< FP0_REGNUM
)
1144 if (!ptrace64aix (PTT_READ_GPRS
, tid
,
1145 (unsigned long) gprs64
, 0, NULL
))
1146 memset (gprs64
, 0, sizeof (gprs64
));
1147 supply_gprs64 (gprs64
);
1151 if (!ptrace32 (PTT_READ_GPRS
, tid
, gprs32
, 0, NULL
))
1152 memset (gprs32
, 0, sizeof (gprs32
));
1153 for (i
= 0; i
< 32; i
++)
1154 supply_reg32 (i
, gprs32
[i
]);
1158 /* Floating-point registers. */
1160 if (regno
== -1 || (regno
>= FP0_REGNUM
&& regno
<= FPLAST_REGNUM
))
1162 if (!ptrace32 (PTT_READ_FPRS
, tid
, (int *) fprs
, 0, NULL
))
1163 memset (fprs
, 0, sizeof (fprs
));
1167 /* Special-purpose registers. */
1170 (regno
> FPLAST_REGNUM
&& regno
<= LAST_UISA_SP_REGNUM
))
1174 if (!ptrace64aix (PTT_READ_SPRS
, tid
,
1175 (unsigned long) &sprs64
, 0, NULL
))
1176 memset (&sprs64
, 0, sizeof (sprs64
));
1177 supply_sprs64 (sprs64
.pt_iar
, sprs64
.pt_msr
, sprs64
.pt_cr
,
1178 sprs64
.pt_lr
, sprs64
.pt_ctr
, sprs64
.pt_xer
);
1182 if (!ptrace32 (PTT_READ_SPRS
, tid
, (int *) &sprs32
, 0, NULL
))
1183 memset (&sprs32
, 0, sizeof (sprs32
));
1184 supply_sprs32 (sprs32
.pt_iar
, sprs32
.pt_msr
, sprs32
.pt_cr
,
1185 sprs32
.pt_lr
, sprs32
.pt_ctr
, sprs32
.pt_xer
);
1187 if (REGISTER_RAW_SIZE (LAST_UISA_SP_REGNUM
))
1188 supply_register (LAST_UISA_SP_REGNUM
, (char *) &sprs32
.pt_mq
);
1193 /* Fetch register REGNO if != -1 or all registers otherwise in the
1194 thread/process specified by inferior_ptid. */
1197 aix_thread_fetch_registers (int regno
)
1199 struct thread_info
*thread
;
1202 if (!PD_TID (inferior_ptid
))
1203 base_target
.to_fetch_registers (regno
);
1206 thread
= find_thread_pid (inferior_ptid
);
1207 tid
= thread
->private->tid
;
1209 if (tid
== PTHDB_INVALID_TID
)
1210 fetch_regs_user_thread (thread
->private->pdtid
);
1212 fetch_regs_kernel_thread (regno
, tid
);
1216 /* Store the gp registers into an array of uint32_t or uint64_t. */
1219 fill_gprs64 (uint64_t *vals
)
1223 for (regno
= 0; regno
< FP0_REGNUM
; regno
++)
1224 if (register_cached (regno
))
1225 regcache_collect (regno
, vals
+ regno
);
1229 fill_gprs32 (uint32_t *vals
)
1233 for (regno
= 0; regno
< FP0_REGNUM
; regno
++)
1234 if (register_cached (regno
))
1235 regcache_collect (regno
, vals
+ regno
);
1238 /* Store the floating point registers into a double array. */
1240 fill_fprs (double *vals
)
1244 for (regno
= FP0_REGNUM
; regno
< FPLAST_REGNUM
; regno
++)
1245 if (register_cached (regno
))
1246 regcache_collect (regno
, vals
+ regno
);
1249 /* Store the special registers into the specified 64-bit and 32-bit
1253 fill_sprs64 (uint64_t *iar
, uint64_t *msr
, uint32_t *cr
,
1254 uint64_t *lr
, uint64_t *ctr
, uint32_t *xer
)
1256 int regno
= FIRST_UISA_SP_REGNUM
;
1258 gdb_assert (sizeof (*iar
) == REGISTER_RAW_SIZE (regno
));
1260 if (register_cached (regno
))
1261 regcache_collect (regno
, iar
);
1262 if (register_cached (regno
+ 1))
1263 regcache_collect (regno
+ 1, msr
);
1264 if (register_cached (regno
+ 2))
1265 regcache_collect (regno
+ 2, cr
);
1266 if (register_cached (regno
+ 3))
1267 regcache_collect (regno
+ 3, lr
);
1268 if (register_cached (regno
+ 4))
1269 regcache_collect (regno
+ 4, ctr
);
1270 if (register_cached (regno
+ 5))
1271 regcache_collect (regno
+ 5, xer
);
1275 fill_sprs32 (unsigned long *iar
, unsigned long *msr
, unsigned long *cr
,
1276 unsigned long *lr
, unsigned long *ctr
, unsigned long *xer
)
1278 int regno
= FIRST_UISA_SP_REGNUM
;
1280 /* If this assert() fails, the most likely reason is that GDB was
1281 built incorrectly. In order to make use of many of the header
1282 files in /usr/include/sys, GDB needs to be configured so that
1283 sizeof (long) == 4). */
1284 gdb_assert (sizeof (*iar
) == REGISTER_RAW_SIZE (regno
));
1286 if (register_cached (regno
))
1287 regcache_collect (regno
, iar
);
1288 if (register_cached (regno
+ 1))
1289 regcache_collect (regno
+ 1, msr
);
1290 if (register_cached (regno
+ 2))
1291 regcache_collect (regno
+ 2, cr
);
1292 if (register_cached (regno
+ 3))
1293 regcache_collect (regno
+ 3, lr
);
1294 if (register_cached (regno
+ 4))
1295 regcache_collect (regno
+ 4, ctr
);
1296 if (register_cached (regno
+ 5))
1297 regcache_collect (regno
+ 5, xer
);
1300 /* Store all registers into pthread PDTID, which doesn't have a kernel
1303 It's possible to store a single register into a non-kernel pthread,
1304 but I doubt it's worth the effort. */
1307 store_regs_user_thread (pthdb_pthread_t pdtid
)
1310 pthdb_context_t ctx
;
1315 if (debug_aix_thread
)
1316 fprintf_unfiltered (gdb_stdlog
,
1317 "store_regs_user_thread %lx\n", (long) pdtid
);
1319 /* Retrieve the thread's current context for its non-register
1321 status
= pthdb_pthread_context (pd_session
, pdtid
, &ctx
);
1322 if (status
!= PTHDB_SUCCESS
)
1323 error ("aix-thread: store_registers: pthdb_pthread_context returned %s",
1324 pd_status2str (status
));
1326 /* Collect general-purpose register values from the regcache. */
1328 for (i
= 0; i
< 32; i
++)
1329 if (register_cached (i
))
1333 regcache_collect (i
, (void *) &int64
);
1338 regcache_collect (i
, (void *) &int32
);
1343 /* Collect floating-point register values from the regcache. */
1344 fill_fprs (ctx
.fpr
);
1346 /* Special registers (always kept in ctx as 64 bits). */
1349 fill_sprs64 (&ctx
.iar
, &ctx
.msr
, &ctx
.cr
, &ctx
.lr
, &ctx
.ctr
, &ctx
.xer
);
1353 /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32.
1354 Solution: use 32-bit temp variables. (The assert() in fill_sprs32()
1355 will fail if the size of an unsigned long is incorrect. If this
1356 happens, GDB needs to be reconfigured so that longs are 32-bits.) */
1357 unsigned long tmp_iar
, tmp_msr
, tmp_cr
, tmp_lr
, tmp_ctr
, tmp_xer
;
1359 fill_sprs32 (&tmp_iar
, &tmp_msr
, &tmp_cr
, &tmp_lr
, &tmp_ctr
, &tmp_xer
);
1360 if (register_cached (FIRST_UISA_SP_REGNUM
))
1362 if (register_cached (FIRST_UISA_SP_REGNUM
+ 1))
1364 if (register_cached (FIRST_UISA_SP_REGNUM
+ 2))
1366 if (register_cached (FIRST_UISA_SP_REGNUM
+ 3))
1368 if (register_cached (FIRST_UISA_SP_REGNUM
+ 4))
1370 if (register_cached (FIRST_UISA_SP_REGNUM
+ 5))
1374 status
= pthdb_pthread_setcontext (pd_session
, pdtid
, &ctx
);
1375 if (status
!= PTHDB_SUCCESS
)
1376 error ("aix-thread: store_registers: pthdb_pthread_setcontext returned %s",
1377 pd_status2str (status
));
1380 /* Store register REGNO if != -1 or all registers otherwise into
1383 AIX provides a way to set all of a kernel thread's GPRs, FPRs, or
1384 SPRs, but there's no way to set individual registers within those
1385 groups. Therefore, if REGNO != -1, this function stores an entire
1389 store_regs_kernel_thread (int regno
, pthdb_tid_t tid
)
1391 uint64_t gprs64
[32];
1392 uint32_t gprs32
[32];
1394 struct ptxsprs sprs64
;
1395 struct ptsprs sprs32
;
1398 if (debug_aix_thread
)
1399 fprintf_unfiltered (gdb_stdlog
,
1400 "store_regs_kernel_thread tid=%lx regno=%d\n",
1403 /* General-purpose registers. */
1404 if (regno
== -1 || regno
< FP0_REGNUM
)
1408 /* Pre-fetch: some regs may not be in the cache. */
1409 ptrace64aix (PTT_READ_GPRS
, tid
, (unsigned long) gprs64
, 0, NULL
);
1410 fill_gprs64 (gprs64
);
1411 ptrace64aix (PTT_WRITE_GPRS
, tid
, (unsigned long) gprs64
, 0, NULL
);
1415 /* Pre-fetch: some regs may not be in the cache. */
1416 ptrace32 (PTT_READ_GPRS
, tid
, gprs32
, 0, NULL
);
1417 fill_gprs32 (gprs32
);
1418 ptrace32 (PTT_WRITE_GPRS
, tid
, gprs32
, 0, NULL
);
1422 /* Floating-point registers. */
1424 if (regno
== -1 || (regno
>= FP0_REGNUM
&& regno
<= FPLAST_REGNUM
))
1426 /* Pre-fetch: some regs may not be in the cache. */
1427 ptrace32 (PTT_READ_FPRS
, tid
, (int *) fprs
, 0, NULL
);
1429 ptrace32 (PTT_WRITE_FPRS
, tid
, (int *) fprs
, 0, NULL
);
1432 /* Special-purpose registers. */
1435 (regno
> FPLAST_REGNUM
&& regno
<= LAST_UISA_SP_REGNUM
))
1439 /* Pre-fetch: some registers won't be in the cache. */
1440 ptrace64aix (PTT_READ_SPRS
, tid
,
1441 (unsigned long) &sprs64
, 0, NULL
);
1442 fill_sprs64 (&sprs64
.pt_iar
, &sprs64
.pt_msr
, &sprs64
.pt_cr
,
1443 &sprs64
.pt_lr
, &sprs64
.pt_ctr
, &sprs64
.pt_xer
);
1444 ptrace64aix (PTT_WRITE_SPRS
, tid
,
1445 (unsigned long) &sprs64
, 0, NULL
);
1449 /* Pre-fetch: some registers won't be in the cache. */
1450 ptrace32 (PTT_READ_SPRS
, tid
, (int *) &sprs32
, 0, NULL
);
1452 fill_sprs32 (&sprs32
.pt_iar
, &sprs32
.pt_msr
, &sprs32
.pt_cr
,
1453 &sprs32
.pt_lr
, &sprs32
.pt_ctr
, &sprs32
.pt_xer
);
1455 if (REGISTER_RAW_SIZE (LAST_UISA_SP_REGNUM
))
1456 if (register_cached (LAST_UISA_SP_REGNUM
))
1457 regcache_collect (LAST_UISA_SP_REGNUM
, &sprs32
.pt_mq
);
1459 ptrace32 (PTT_WRITE_SPRS
, tid
, (int *) &sprs32
, 0, NULL
);
1464 /* Store gdb's current view of the register set into the
1465 thread/process specified by inferior_ptid. */
1468 aix_thread_store_registers (int regno
)
1470 struct thread_info
*thread
;
1473 if (!PD_TID (inferior_ptid
))
1474 base_target
.to_store_registers (regno
);
1477 thread
= find_thread_pid (inferior_ptid
);
1478 tid
= thread
->private->tid
;
1480 if (tid
== PTHDB_INVALID_TID
)
1481 store_regs_user_thread (thread
->private->pdtid
);
1483 store_regs_kernel_thread (regno
, tid
);
1487 /* Transfer LEN bytes of memory from GDB address MYADDR to target
1488 address MEMADDR if WRITE and vice versa otherwise. */
1491 aix_thread_xfer_memory (CORE_ADDR memaddr
, char *myaddr
, int len
, int write
,
1492 struct mem_attrib
*attrib
,
1493 struct target_ops
*target
)
1496 struct cleanup
*cleanup
= save_inferior_ptid ();
1498 inferior_ptid
= pid_to_ptid (PIDGET (inferior_ptid
));
1499 n
= base_target
.to_xfer_memory (memaddr
, myaddr
, len
,
1500 write
, attrib
, &base_target
);
1501 do_cleanups (cleanup
);
1506 /* Kill and forget about the inferior process. */
1509 aix_thread_kill (void)
1511 struct cleanup
*cleanup
= save_inferior_ptid ();
1513 inferior_ptid
= pid_to_ptid (PIDGET (inferior_ptid
));
1514 base_target
.to_kill ();
1515 do_cleanups (cleanup
);
1518 /* Clean up after the inferior exits. */
1521 aix_thread_mourn_inferior (void)
1524 base_target
.to_mourn_inferior ();
1527 /* Return whether thread PID is still valid. */
1530 aix_thread_thread_alive (ptid_t ptid
)
1533 return base_target
.to_thread_alive (ptid
);
1535 /* We update the thread list every time the child stops, so all
1536 valid threads should be in the thread list. */
1537 return in_thread_list (ptid
);
1540 /* Return a printable representation of composite PID for use in
1541 "info threads" output. */
1544 aix_thread_pid_to_str (ptid_t ptid
)
1546 static char *ret
= NULL
;
1549 return base_target
.to_pid_to_str (ptid
);
1551 /* Free previous return value; a new one will be allocated by
1555 xasprintf (&ret
, "Thread %ld", ptid_get_tid (ptid
));
1559 /* Return a printable representation of extra information about
1560 THREAD, for use in "info threads" output. */
1563 aix_thread_extra_thread_info (struct thread_info
*thread
)
1565 struct ui_file
*buf
;
1567 pthdb_pthread_t pdtid
;
1569 pthdb_state_t state
;
1570 pthdb_suspendstate_t suspendstate
;
1571 pthdb_detachstate_t detachstate
;
1574 static char *ret
= NULL
;
1576 if (!PD_TID (thread
->ptid
))
1579 buf
= mem_fileopen ();
1581 pdtid
= thread
->private->pdtid
;
1582 tid
= thread
->private->tid
;
1584 if (tid
!= PTHDB_INVALID_TID
)
1585 fprintf_unfiltered (buf
, "tid %d", tid
);
1587 status
= pthdb_pthread_state (pd_session
, pdtid
, &state
);
1588 if (status
!= PTHDB_SUCCESS
)
1590 fprintf_unfiltered (buf
, ", %s", state2str (state
));
1592 status
= pthdb_pthread_suspendstate (pd_session
, pdtid
,
1594 if (status
== PTHDB_SUCCESS
&& suspendstate
== PSS_SUSPENDED
)
1595 fprintf_unfiltered (buf
, ", suspended");
1597 status
= pthdb_pthread_detachstate (pd_session
, pdtid
,
1599 if (status
== PTHDB_SUCCESS
&& detachstate
== PDS_DETACHED
)
1600 fprintf_unfiltered (buf
, ", detached");
1602 pthdb_pthread_cancelpend (pd_session
, pdtid
, &cancelpend
);
1603 if (status
== PTHDB_SUCCESS
&& cancelpend
)
1604 fprintf_unfiltered (buf
, ", cancel pending");
1606 ui_file_write (buf
, "", 1);
1608 xfree (ret
); /* Free old buffer. */
1610 ret
= ui_file_xstrdup (buf
, &length
);
1611 ui_file_delete (buf
);
1616 /* Initialize target aix_thread_ops. */
1619 init_aix_thread_ops (void)
1621 aix_thread_ops
.to_shortname
= "aix-threads";
1622 aix_thread_ops
.to_longname
= "AIX pthread support";
1623 aix_thread_ops
.to_doc
= "AIX pthread support";
1625 aix_thread_ops
.to_attach
= aix_thread_attach
;
1626 aix_thread_ops
.to_detach
= aix_thread_detach
;
1627 aix_thread_ops
.to_resume
= aix_thread_resume
;
1628 aix_thread_ops
.to_wait
= aix_thread_wait
;
1629 aix_thread_ops
.to_fetch_registers
= aix_thread_fetch_registers
;
1630 aix_thread_ops
.to_store_registers
= aix_thread_store_registers
;
1631 aix_thread_ops
.to_xfer_memory
= aix_thread_xfer_memory
;
1632 /* No need for aix_thread_ops.to_create_inferior, because we activate thread
1633 debugging when the inferior reaches pd_brk_addr. */
1634 aix_thread_ops
.to_kill
= aix_thread_kill
;
1635 aix_thread_ops
.to_mourn_inferior
= aix_thread_mourn_inferior
;
1636 aix_thread_ops
.to_thread_alive
= aix_thread_thread_alive
;
1637 aix_thread_ops
.to_pid_to_str
= aix_thread_pid_to_str
;
1638 aix_thread_ops
.to_extra_thread_info
= aix_thread_extra_thread_info
;
1639 aix_thread_ops
.to_stratum
= thread_stratum
;
1640 aix_thread_ops
.to_magic
= OPS_MAGIC
;
1643 /* Module startup initialization function, automagically called by
1647 _initialize_aix_thread (void)
1649 init_aix_thread_ops ();
1650 add_target (&aix_thread_ops
);
1652 /* Notice when object files get loaded and unloaded. */
1653 target_new_objfile_chain
= target_new_objfile_hook
;
1654 target_new_objfile_hook
= new_objfile
;
1656 add_show_from_set (add_set_cmd ("aix-thread", no_class
, var_zinteger
,
1657 (char *) &debug_aix_thread
,
1658 "Set debugging of AIX thread module.\n"
1659 "Enables printf debugging output.\n",