1 /* Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
26 #include <sys/syscall.h>
29 #include <lowlevellock.h>
30 #include <stackinfo.h>
31 #include <internaltypes.h>
32 #include <pthread-functions.h>
34 #include <kernel-features.h>
37 /* Atomic operations on TLS memory. */
38 #ifndef THREAD_ATOMIC_CMPXCHG_VAL
39 # define THREAD_ATOMIC_CMPXCHG_VAL(descr, member, new, old) \
40 atomic_compare_and_exchange_val_acq (&(descr)->member, new, old)
43 #ifndef THREAD_ATOMIC_BIT_SET
44 # define THREAD_ATOMIC_BIT_SET(descr, member, bit) \
45 atomic_bit_set (&(descr)->member, bit)
49 /* Adaptive mutex definitions. */
50 #ifndef MAX_ADAPTIVE_COUNT
51 # define MAX_ADAPTIVE_COUNT 100
55 /* Magic cookie representing robust mutex with dead owner. */
56 #define PTHREAD_MUTEX_INCONSISTENT INT_MAX
57 /* Magic cookie representing not recoverable robust mutex. */
58 #define PTHREAD_MUTEX_NOTRECOVERABLE (INT_MAX - 1)
61 /* Internal mutex type value. */
64 PTHREAD_MUTEX_KIND_MASK_NP
= 3,
65 PTHREAD_MUTEX_ROBUST_NORMAL_NP
= 16,
66 PTHREAD_MUTEX_ROBUST_RECURSIVE_NP
67 = PTHREAD_MUTEX_ROBUST_NORMAL_NP
| PTHREAD_MUTEX_RECURSIVE_NP
,
68 PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP
69 = PTHREAD_MUTEX_ROBUST_NORMAL_NP
| PTHREAD_MUTEX_ERRORCHECK_NP
,
70 PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP
71 = PTHREAD_MUTEX_ROBUST_NORMAL_NP
| PTHREAD_MUTEX_ADAPTIVE_NP
,
72 PTHREAD_MUTEX_PRIO_INHERIT_NP
= 32,
73 PTHREAD_MUTEX_PI_NORMAL_NP
74 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_NORMAL
,
75 PTHREAD_MUTEX_PI_RECURSIVE_NP
76 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_RECURSIVE_NP
,
77 PTHREAD_MUTEX_PI_ERRORCHECK_NP
78 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ERRORCHECK_NP
,
79 PTHREAD_MUTEX_PI_ADAPTIVE_NP
80 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ADAPTIVE_NP
,
81 PTHREAD_MUTEX_PI_ROBUST_NORMAL_NP
82 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ROBUST_NORMAL_NP
,
83 PTHREAD_MUTEX_PI_ROBUST_RECURSIVE_NP
84 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ROBUST_RECURSIVE_NP
,
85 PTHREAD_MUTEX_PI_ROBUST_ERRORCHECK_NP
86 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP
,
87 PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP
88 = PTHREAD_MUTEX_PRIO_INHERIT_NP
| PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP
,
89 PTHREAD_MUTEX_PRIO_PROTECT_NP
= 64,
90 PTHREAD_MUTEX_PP_NORMAL_NP
91 = PTHREAD_MUTEX_PRIO_PROTECT_NP
| PTHREAD_MUTEX_NORMAL
,
92 PTHREAD_MUTEX_PP_RECURSIVE_NP
93 = PTHREAD_MUTEX_PRIO_PROTECT_NP
| PTHREAD_MUTEX_RECURSIVE_NP
,
94 PTHREAD_MUTEX_PP_ERRORCHECK_NP
95 = PTHREAD_MUTEX_PRIO_PROTECT_NP
| PTHREAD_MUTEX_ERRORCHECK_NP
,
96 PTHREAD_MUTEX_PP_ADAPTIVE_NP
97 = PTHREAD_MUTEX_PRIO_PROTECT_NP
| PTHREAD_MUTEX_ADAPTIVE_NP
100 #define PTHREAD_MUTEX_TYPE(m) \
103 /* Ceiling in __data.__lock. __data.__lock is signed, so don't
104 use the MSB bit in there, but in the mask also include that bit,
105 so that the compiler can optimize & PTHREAD_MUTEX_PRIO_CEILING_MASK
106 masking if the value is then shifted down by
107 PTHREAD_MUTEX_PRIO_CEILING_SHIFT. */
108 #define PTHREAD_MUTEX_PRIO_CEILING_SHIFT 19
109 #define PTHREAD_MUTEX_PRIO_CEILING_MASK 0xfff80000
112 /* Flags in mutex attr. */
113 #define PTHREAD_MUTEXATTR_PROTOCOL_SHIFT 28
114 #define PTHREAD_MUTEXATTR_PROTOCOL_MASK 0x30000000
115 #define PTHREAD_MUTEXATTR_PRIO_CEILING_SHIFT 12
116 #define PTHREAD_MUTEXATTR_PRIO_CEILING_MASK 0x00fff000
117 #define PTHREAD_MUTEXATTR_FLAG_ROBUST 0x40000000
118 #define PTHREAD_MUTEXATTR_FLAG_PSHARED 0x80000000
119 #define PTHREAD_MUTEXATTR_FLAG_BITS \
120 (PTHREAD_MUTEXATTR_FLAG_ROBUST | PTHREAD_MUTEXATTR_FLAG_PSHARED \
121 | PTHREAD_MUTEXATTR_PROTOCOL_MASK | PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
124 /* Check whether rwlock prefers readers. */
125 #define PTHREAD_RWLOCK_PREFER_READER_P(rwlock) \
126 ((rwlock)->__data.__flags == 0)
129 /* Bits used in robust mutex implementation. */
130 #define FUTEX_WAITERS 0x80000000
131 #define FUTEX_OWNER_DIED 0x40000000
132 #define FUTEX_TID_MASK 0x3fffffff
135 /* Internal variables. */
138 /* Default stack size. */
139 extern size_t __default_stacksize attribute_hidden
;
141 /* Size and alignment of static TLS block. */
142 extern size_t __static_tls_size attribute_hidden
;
143 extern size_t __static_tls_align_m1 attribute_hidden
;
145 /* Flag whether the machine is SMP or not. */
146 extern int __is_smp attribute_hidden
;
148 /* Thread descriptor handling. */
149 extern list_t __stack_user
;
150 hidden_proto (__stack_user
)
152 /* Attribute handling. */
153 extern struct pthread_attr
*__attr_list attribute_hidden
;
154 extern lll_lock_t __attr_list_lock attribute_hidden
;
156 /* First available RT signal. */
157 extern int __current_sigrtmin attribute_hidden
;
158 /* Last available RT signal. */
159 extern int __current_sigrtmax attribute_hidden
;
161 /* Concurrency handling. */
162 extern int __concurrency_level attribute_hidden
;
164 /* Thread-local data key handling. */
165 extern struct pthread_key_struct __pthread_keys
[PTHREAD_KEYS_MAX
];
166 hidden_proto (__pthread_keys
)
168 /* Number of threads running. */
169 extern unsigned int __nptl_nthreads attribute_hidden
;
171 #ifndef __ASSUME_SET_ROBUST_LIST
172 /* Negative if we do not have the system call and we can use it. */
173 extern int __set_robust_list_avail attribute_hidden
;
176 /* Thread Priority Protection. */
177 extern int __sched_fifo_min_prio attribute_hidden
;
178 extern int __sched_fifo_max_prio attribute_hidden
;
179 extern void __init_sched_fifo_prio (void) attribute_hidden
;
180 extern int __pthread_tpp_change_priority (int prev_prio
, int new_prio
)
182 extern int __pthread_current_priority (void) attribute_hidden
;
184 /* The library can run in debugging mode where it performs a lot more
186 extern int __pthread_debug attribute_hidden
;
187 /** For now disable debugging support. */
189 # define DEBUGGING_P __builtin_expect (__pthread_debug, 0)
190 # define INVALID_TD_P(pd) (DEBUGGING_P && __find_in_stack_list (pd) == NULL)
191 # define INVALID_NOT_TERMINATED_TD_P(pd) INVALID_TD_P (pd)
193 # define DEBUGGING_P 0
194 /* Simplified test. This will not catch all invalid descriptors but
195 is better than nothing. And if the test triggers the thread
196 descriptor is guaranteed to be invalid. */
197 # define INVALID_TD_P(pd) __builtin_expect ((pd)->tid <= 0, 0)
198 # define INVALID_NOT_TERMINATED_TD_P(pd) __builtin_expect ((pd)->tid < 0, 0)
202 /* Cancellation test. */
203 #define CANCELLATION_P(self) \
205 int cancelhandling = THREAD_GETMEM (self, cancelhandling); \
206 if (CANCEL_ENABLED_AND_CANCELED (cancelhandling)) \
208 THREAD_SETMEM (self, result, PTHREAD_CANCELED); \
214 extern void __pthread_unwind (__pthread_unwind_buf_t
*__buf
)
215 __cleanup_fct_attribute
__attribute ((__noreturn__
))
216 #if !defined SHARED && !defined IS_IN_libpthread
220 extern void __pthread_unwind_next (__pthread_unwind_buf_t
*__buf
)
221 __cleanup_fct_attribute
__attribute ((__noreturn__
))
226 extern void __pthread_register_cancel (__pthread_unwind_buf_t
*__buf
)
227 __cleanup_fct_attribute
;
228 extern void __pthread_unregister_cancel (__pthread_unwind_buf_t
*__buf
)
229 __cleanup_fct_attribute
;
230 #if defined NOT_IN_libc && defined IS_IN_libpthread
231 hidden_proto (__pthread_unwind
)
232 hidden_proto (__pthread_unwind_next
)
233 hidden_proto (__pthread_register_cancel
)
234 hidden_proto (__pthread_unregister_cancel
)
236 extern void attribute_hidden
pthread_cancel_init (void);
241 /* Called when a thread reacts on a cancellation request. */
243 __attribute ((noreturn
, always_inline
))
246 struct pthread
*self
= THREAD_SELF
;
248 /* Make sure we get no more cancellations. */
249 THREAD_ATOMIC_BIT_SET (self
, cancelhandling
, EXITING_BIT
);
251 __pthread_unwind ((__pthread_unwind_buf_t
*)
252 THREAD_GETMEM (self
, cleanup_jmp_buf
));
256 /* Set cancellation mode to asynchronous. */
257 #define CANCEL_ASYNC() \
258 __pthread_enable_asynccancel ()
259 /* Reset to previous cancellation mode. */
260 #define CANCEL_RESET(oldtype) \
261 __pthread_disable_asynccancel (oldtype)
263 #if !defined NOT_IN_libc
264 /* Same as CANCEL_ASYNC, but for use in libc.so. */
265 # define LIBC_CANCEL_ASYNC() \
266 __libc_enable_asynccancel ()
267 /* Same as CANCEL_RESET, but for use in libc.so. */
268 # define LIBC_CANCEL_RESET(oldtype) \
269 __libc_disable_asynccancel (oldtype)
270 # define LIBC_CANCEL_HANDLED() \
271 __asm (".globl " __SYMBOL_PREFIX "__libc_enable_asynccancel"); \
272 __asm (".globl " __SYMBOL_PREFIX "__libc_disable_asynccancel")
273 #elif defined NOT_IN_libc && defined IS_IN_libpthread
274 # define LIBC_CANCEL_ASYNC() CANCEL_ASYNC ()
275 # define LIBC_CANCEL_RESET(val) CANCEL_RESET (val)
276 # define LIBC_CANCEL_HANDLED() \
277 __asm (".globl " __SYMBOL_PREFIX "__pthread_enable_asynccancel"); \
278 __asm (".globl " __SYMBOL_PREFIX "__pthread_disable_asynccancel")
279 #elif defined NOT_IN_libc && defined IS_IN_librt
280 # define LIBC_CANCEL_ASYNC() \
281 __librt_enable_asynccancel ()
282 # define LIBC_CANCEL_RESET(val) \
283 __librt_disable_asynccancel (val)
284 # define LIBC_CANCEL_HANDLED() \
285 __asm (".globl " __SYMBOL_PREFIX "__librt_enable_asynccancel"); \
286 __asm (".globl " __SYMBOL_PREFIX "__librt_disable_asynccancel")
288 # define LIBC_CANCEL_ASYNC() 0 /* Just a dummy value. */
289 # define LIBC_CANCEL_RESET(val) ((void)(val)) /* Nothing, but evaluate it. */
290 # define LIBC_CANCEL_HANDLED() /* Nothing. */
293 /* The signal used for asynchronous cancelation. */
294 #define SIGCANCEL __SIGRTMIN
297 /* Signal needed for the kernel-supported POSIX timer implementation.
298 We can reuse the cancellation signal since we can distinguish
299 cancellation from timer expirations. */
300 #define SIGTIMER SIGCANCEL
303 /* Signal used to implement the setuid et.al. functions. */
304 #define SIGSETXID (__SIGRTMIN + 1)
306 /* Used to communicate with signal handler. */
307 extern struct xid_command
*__xidcmd attribute_hidden
;
310 /* Internal prototypes. */
312 /* Thread list handling. */
313 extern struct pthread
*__find_in_stack_list (struct pthread
*pd
)
314 attribute_hidden internal_function
;
316 /* Deallocate a thread's stack after optionally making sure the thread
317 descriptor is still valid. */
318 extern void __free_tcb (struct pthread
*pd
) attribute_hidden internal_function
;
320 /* Free allocated stack. */
321 extern void __deallocate_stack (struct pthread
*pd
)
322 attribute_hidden internal_function
;
324 /* Mark all the stacks except for the current one as available. This
325 function also re-initializes the lock for the stack cache. */
326 extern void __reclaim_stacks (void) attribute_hidden
;
328 /* Make all threads's stacks executable. */
329 extern int __make_stacks_executable (void **stack_endp
)
330 internal_function attribute_hidden
;
332 /* longjmp handling. */
333 extern void __pthread_cleanup_upto (__jmp_buf target
, char *targetframe
);
334 #if defined NOT_IN_libc && defined IS_IN_libpthread
335 hidden_proto (__pthread_cleanup_upto
)
339 /* Functions with versioned interfaces. */
340 extern int __pthread_create_2_1 (pthread_t
*newthread
,
341 const pthread_attr_t
*attr
,
342 void *(*start_routine
) (void *), void *arg
);
343 extern int __pthread_create_2_0 (pthread_t
*newthread
,
344 const pthread_attr_t
*attr
,
345 void *(*start_routine
) (void *), void *arg
);
346 extern int __pthread_attr_init_2_1 (pthread_attr_t
*attr
);
347 extern int __pthread_attr_init_2_0 (pthread_attr_t
*attr
);
350 /* Event handlers for libthread_db interface. */
351 extern void __nptl_create_event (void);
352 extern void __nptl_death_event (void);
353 hidden_proto (__nptl_create_event
)
354 hidden_proto (__nptl_death_event
)
356 /* Register the generation counter in the libpthread with the libc. */
357 #ifdef TLS_MULTIPLE_THREADS_IN_TCB
358 extern void __libc_pthread_init (unsigned long int *ptr
,
359 void (*reclaim
) (void),
360 const struct pthread_functions
*functions
)
363 extern int *__libc_pthread_init (unsigned long int *ptr
,
364 void (*reclaim
) (void),
365 const struct pthread_functions
*functions
)
368 /* Variable set to a nonzero value if more than one thread runs or ran. */
369 extern int __pthread_multiple_threads attribute_hidden
;
370 /* Pointer to the corresponding variable in libc. */
371 extern int *__libc_multiple_threads_ptr attribute_hidden
;
374 /* Find a thread given its TID. */
375 extern struct pthread
*__find_thread_by_id (pid_t tid
) attribute_hidden
380 #define __find_thread_by_id(tid) \
381 (__find_thread_by_id ? (__find_thread_by_id) (tid) : (struct pthread *) NULL)
384 extern void __pthread_init_static_tls (struct link_map
*) attribute_hidden
;
387 /* Namespace save aliases. */
388 extern int __pthread_getschedparam (pthread_t thread_id
, int *policy
,
389 struct sched_param
*param
);
390 extern int __pthread_setschedparam (pthread_t thread_id
, int policy
,
391 const struct sched_param
*param
);
392 extern int __pthread_setcancelstate (int state
, int *oldstate
);
393 extern int __pthread_mutex_init (pthread_mutex_t
*__mutex
,
394 __const pthread_mutexattr_t
*__mutexattr
);
395 extern int __pthread_mutex_init_internal (pthread_mutex_t
*__mutex
,
396 __const pthread_mutexattr_t
*__mutexattr
)
398 extern int __pthread_mutex_destroy (pthread_mutex_t
*__mutex
);
399 extern int __pthread_mutex_destroy_internal (pthread_mutex_t
*__mutex
)
401 extern int __pthread_mutex_trylock (pthread_mutex_t
*_mutex
);
402 extern int __pthread_mutex_lock (pthread_mutex_t
*__mutex
);
403 extern int __pthread_mutex_lock_internal (pthread_mutex_t
*__mutex
)
405 extern int __pthread_mutex_cond_lock (pthread_mutex_t
*__mutex
)
406 attribute_hidden internal_function
;
407 extern int __pthread_mutex_unlock (pthread_mutex_t
*__mutex
);
408 extern int __pthread_mutex_unlock_internal (pthread_mutex_t
*__mutex
)
410 extern int __pthread_mutex_unlock_usercnt (pthread_mutex_t
*__mutex
,
412 attribute_hidden internal_function
;
413 extern int __pthread_mutexattr_init (pthread_mutexattr_t
*attr
);
414 extern int __pthread_mutexattr_destroy (pthread_mutexattr_t
*attr
);
415 extern int __pthread_mutexattr_settype (pthread_mutexattr_t
*attr
, int kind
);
416 extern int __pthread_attr_destroy (pthread_attr_t
*attr
);
417 extern int __pthread_attr_getdetachstate (const pthread_attr_t
*attr
,
419 extern int __pthread_attr_setdetachstate (pthread_attr_t
*attr
,
421 extern int __pthread_attr_getinheritsched (const pthread_attr_t
*attr
,
423 extern int __pthread_attr_setinheritsched (pthread_attr_t
*attr
, int inherit
);
424 extern int __pthread_attr_getschedparam (const pthread_attr_t
*attr
,
425 struct sched_param
*param
);
426 extern int __pthread_attr_setschedparam (pthread_attr_t
*attr
,
427 const struct sched_param
*param
);
428 extern int __pthread_attr_getschedpolicy (const pthread_attr_t
*attr
,
430 extern int __pthread_attr_setschedpolicy (pthread_attr_t
*attr
, int policy
);
431 extern int __pthread_attr_getscope (const pthread_attr_t
*attr
, int *scope
);
432 extern int __pthread_attr_setscope (pthread_attr_t
*attr
, int scope
);
433 extern int __pthread_attr_getstackaddr (__const pthread_attr_t
*__restrict
434 __attr
, void **__restrict __stackaddr
);
435 extern int __pthread_attr_setstackaddr (pthread_attr_t
*__attr
,
437 extern int __pthread_attr_getstacksize (__const pthread_attr_t
*__restrict
439 size_t *__restrict __stacksize
);
440 extern int __pthread_attr_setstacksize (pthread_attr_t
*__attr
,
442 extern int __pthread_attr_getstack (__const pthread_attr_t
*__restrict __attr
,
443 void **__restrict __stackaddr
,
444 size_t *__restrict __stacksize
);
445 extern int __pthread_attr_setstack (pthread_attr_t
*__attr
, void *__stackaddr
,
447 extern int __pthread_rwlock_init (pthread_rwlock_t
*__restrict __rwlock
,
448 __const pthread_rwlockattr_t
*__restrict
450 extern int __pthread_rwlock_destroy (pthread_rwlock_t
*__rwlock
);
451 extern int __pthread_rwlock_rdlock (pthread_rwlock_t
*__rwlock
);
452 extern int __pthread_rwlock_rdlock_internal (pthread_rwlock_t
*__rwlock
);
453 extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t
*__rwlock
);
454 extern int __pthread_rwlock_wrlock (pthread_rwlock_t
*__rwlock
);
455 extern int __pthread_rwlock_wrlock_internal (pthread_rwlock_t
*__rwlock
);
456 extern int __pthread_rwlock_trywrlock (pthread_rwlock_t
*__rwlock
);
457 extern int __pthread_rwlock_unlock (pthread_rwlock_t
*__rwlock
);
458 extern int __pthread_rwlock_unlock_internal (pthread_rwlock_t
*__rwlock
);
459 extern int __pthread_cond_broadcast (pthread_cond_t
*cond
);
460 extern int __pthread_cond_destroy (pthread_cond_t
*cond
);
461 extern int __pthread_cond_init (pthread_cond_t
*cond
,
462 const pthread_condattr_t
*cond_attr
);
463 extern int __pthread_cond_signal (pthread_cond_t
*cond
);
464 extern int __pthread_cond_wait (pthread_cond_t
*cond
, pthread_mutex_t
*mutex
);
465 extern int __pthread_cond_timedwait (pthread_cond_t
*cond
,
466 pthread_mutex_t
*mutex
,
467 const struct timespec
*abstime
);
468 extern int __pthread_condattr_destroy (pthread_condattr_t
*attr
);
469 extern int __pthread_condattr_init (pthread_condattr_t
*attr
);
470 extern int __pthread_key_create (pthread_key_t
*key
, void (*destr
) (void *));
471 extern int __pthread_key_create_internal (pthread_key_t
*key
,
472 void (*destr
) (void *));
473 extern void *__pthread_getspecific (pthread_key_t key
);
474 extern void *__pthread_getspecific_internal (pthread_key_t key
);
475 extern int __pthread_setspecific (pthread_key_t key
, const void *value
);
476 extern int __pthread_setspecific_internal (pthread_key_t key
,
478 extern int __pthread_once (pthread_once_t
*once_control
,
479 void (*init_routine
) (void));
480 extern int __pthread_once_internal (pthread_once_t
*once_control
,
481 void (*init_routine
) (void));
482 extern int __pthread_atfork (void (*prepare
) (void), void (*parent
) (void),
483 void (*child
) (void));
484 extern pthread_t
__pthread_self (void);
485 extern int __pthread_equal (pthread_t thread1
, pthread_t thread2
);
486 extern int __pthread_kill (pthread_t threadid
, int signo
);
487 extern void __pthread_exit (void *value
);
488 extern int __pthread_setcanceltype (int type
, int *oldtype
);
489 extern int __pthread_enable_asynccancel (void) attribute_hidden
;
490 extern void __pthread_disable_asynccancel (int oldtype
)
491 internal_function attribute_hidden
;
493 extern int __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t
*cond
);
494 extern int __pthread_cond_destroy_2_0 (pthread_cond_2_0_t
*cond
);
495 extern int __pthread_cond_init_2_0 (pthread_cond_2_0_t
*cond
,
496 const pthread_condattr_t
*cond_attr
);
497 extern int __pthread_cond_signal_2_0 (pthread_cond_2_0_t
*cond
);
498 extern int __pthread_cond_timedwait_2_0 (pthread_cond_2_0_t
*cond
,
499 pthread_mutex_t
*mutex
,
500 const struct timespec
*abstime
);
501 extern int __pthread_cond_wait_2_0 (pthread_cond_2_0_t
*cond
,
502 pthread_mutex_t
*mutex
);
504 extern int __pthread_getaffinity_np (pthread_t th
, size_t cpusetsize
,
507 /* The two functions are in libc.so and not exported. */
508 extern int __libc_enable_asynccancel (void) attribute_hidden
;
509 extern void __libc_disable_asynccancel (int oldtype
)
510 internal_function attribute_hidden
;
513 /* The two functions are in librt.so and not exported. */
514 extern int __librt_enable_asynccancel (void) attribute_hidden
;
515 extern void __librt_disable_asynccancel (int oldtype
)
516 internal_function attribute_hidden
;
518 #ifdef IS_IN_libpthread
519 /* Special versions which use non-exported functions. */
520 extern void __pthread_cleanup_push (struct _pthread_cleanup_buffer
*buffer
,
521 void (*routine
) (void *), void *arg
)
523 # undef pthread_cleanup_push
524 # define pthread_cleanup_push(routine,arg) \
525 { struct _pthread_cleanup_buffer _buffer; \
526 __pthread_cleanup_push (&_buffer, (routine), (arg));
528 extern void __pthread_cleanup_pop (struct _pthread_cleanup_buffer
*buffer
,
529 int execute
) attribute_hidden
;
530 # undef pthread_cleanup_pop
531 # define pthread_cleanup_pop(execute) \
532 __pthread_cleanup_pop (&_buffer, (execute)); }
535 extern void __pthread_cleanup_push_defer (struct _pthread_cleanup_buffer
*buffer
,
536 void (*routine
) (void *), void *arg
);
537 extern void __pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer
*buffer
,
540 /* Old cleanup interfaces, still used in libc.so. */
541 extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer
*buffer
,
542 void (*routine
) (void *), void *arg
);
543 extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer
*buffer
,
545 extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer
*buffer
,
546 void (*routine
) (void *), void *arg
);
547 extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer
*buffer
,
550 extern void __nptl_deallocate_tsd (void) attribute_hidden
;
552 extern int __nptl_setxid (struct xid_command
*cmdp
) attribute_hidden
;
554 extern void __free_stack_cache (void) attribute_hidden
;
556 extern void __wait_lookup_done (void) attribute_hidden
;
559 # define PTHREAD_STATIC_FN_REQUIRE(name)
561 # define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name);
565 #ifndef __NR_set_robust_list
566 /* XXX For the time being... Once we can rely on the kernel headers
567 having the definition remove these lines. */
568 # if defined __i386__
569 # define __NR_set_robust_list 311
570 # elif defined __x86_64__
571 # define __NR_set_robust_list 273
575 #endif /* pthreadP.h */