diff options
Diffstat (limited to 'libpthread/nptl/pthreadP.h')
| -rw-r--r-- | libpthread/nptl/pthreadP.h | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/libpthread/nptl/pthreadP.h b/libpthread/nptl/pthreadP.h deleted file mode 100644 index 24168146f..000000000 --- a/libpthread/nptl/pthreadP.h +++ /dev/null @@ -1,466 +0,0 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _PTHREADP_H -#define _PTHREADP_H 1 - -#include <pthread.h> -#include <setjmp.h> -#include <stdbool.h> -#include <sys/syscall.h> -#include "descr.h" -#include <tls.h> -#include <lowlevellock.h> -#include <stackinfo.h> -#include <internaltypes.h> -#include <pthread-functions.h> -#include <atomic.h> - - -/* Atomic operations on TLS memory. */ -#ifndef THREAD_ATOMIC_CMPXCHG_VAL -# define THREAD_ATOMIC_CMPXCHG_VAL(descr, member, new, old) \ - atomic_compare_and_exchange_val_acq (&(descr)->member, new, old) -#endif - -#ifndef THREAD_ATOMIC_BIT_SET -# define THREAD_ATOMIC_BIT_SET(descr, member, bit) \ - atomic_bit_set (&(descr)->member, bit) -#endif - - -/* Adaptive mutex definitions. */ -#ifndef MAX_ADAPTIVE_COUNT -# define MAX_ADAPTIVE_COUNT 100 -#endif - - -/* Internal variables. */ - - -/* Default stack size. */ -extern size_t __default_stacksize attribute_hidden; - -/* Size and alignment of static TLS block. */ -extern size_t __static_tls_size attribute_hidden; -extern size_t __static_tls_align_m1 attribute_hidden; - -/* Flag whether the machine is SMP or not. */ -extern int __is_smp attribute_hidden; - -/* Thread descriptor handling. */ -extern list_t __stack_user; -hidden_proto (__stack_user) - -/* Attribute handling. */ -extern struct pthread_attr *__attr_list attribute_hidden; -extern lll_lock_t __attr_list_lock attribute_hidden; - -/* First available RT signal. */ -extern int __current_sigrtmin attribute_hidden; -/* Last available RT signal. */ -extern int __current_sigrtmax attribute_hidden; - -/* Concurrency handling. */ -extern int __concurrency_level attribute_hidden; - -/* Thread-local data key handling. */ -extern struct pthread_key_struct __pthread_keys[PTHREAD_KEYS_MAX]; -hidden_proto (__pthread_keys) - -/* Number of threads running. */ -extern unsigned int __nptl_nthreads attribute_hidden; - -/* The library can run in debugging mode where it performs a lot more - tests. */ -extern int __pthread_debug attribute_hidden; -/** For now disable debugging support. */ -#if 0 -# define DEBUGGING_P __builtin_expect (__pthread_debug, 0) -# define INVALID_TD_P(pd) (DEBUGGING_P && __find_in_stack_list (pd) == NULL) -# define INVALID_NOT_TERMINATED_TD_P(pd) INVALID_TD_P (pd) -#else -# define DEBUGGING_P 0 -/* Simplified test. This will not catch all invalid descriptors but - is better than nothing. And if the test triggers the thread - descriptor is guaranteed to be invalid. */ -# define INVALID_TD_P(pd) __builtin_expect ((pd)->tid <= 0, 0) -# define INVALID_NOT_TERMINATED_TD_P(pd) __builtin_expect ((pd)->tid < 0, 0) -#endif - - -/* Cancellation test. */ -#define CANCELLATION_P(self) \ - do { \ - int cancelhandling = THREAD_GETMEM (self, cancelhandling); \ - if (CANCEL_ENABLED_AND_CANCELED (cancelhandling)) \ - { \ - THREAD_SETMEM (self, result, PTHREAD_CANCELED); \ - __do_cancel (); \ - } \ - } while (0) - - -extern void __pthread_unwind (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#if !defined SHARED && !defined IS_IN_libpthread - weak_function -#endif - ; -extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute __attribute ((__noreturn__)) -#ifndef SHARED - weak_function -#endif - ; -extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) - __cleanup_fct_attribute; -#if defined NOT_IN_libc && defined IS_IN_libpthread -hidden_proto (__pthread_unwind) -hidden_proto (__pthread_unwind_next) -hidden_proto (__pthread_register_cancel) -hidden_proto (__pthread_unregister_cancel) -# ifdef SHARED -extern void attribute_hidden pthread_cancel_init (void); -# endif -#endif - - -/* Called when a thread reacts on a cancellation request. */ -static inline void -__attribute ((noreturn, always_inline)) -__do_cancel (void) -{ - struct pthread *self = THREAD_SELF; - - /* Make sure we get no more cancellations. */ - THREAD_ATOMIC_BIT_SET (self, cancelhandling, EXITING_BIT); - - __pthread_unwind ((__pthread_unwind_buf_t *) - THREAD_GETMEM (self, cleanup_jmp_buf)); -} - - -/* Set cancellation mode to asynchronous. */ -#define CANCEL_ASYNC() \ - __pthread_enable_asynccancel () -/* Reset to previous cancellation mode. */ -#define CANCEL_RESET(oldtype) \ - __pthread_disable_asynccancel (oldtype) - -#if !defined NOT_IN_libc -/* Same as CANCEL_ASYNC, but for use in libc.so. */ -# define LIBC_CANCEL_ASYNC() \ - __libc_enable_asynccancel () -/* Same as CANCEL_RESET, but for use in libc.so. */ -# define LIBC_CANCEL_RESET(oldtype) \ - __libc_disable_asynccancel (oldtype) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__libc_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__libc_disable_asynccancel") -#elif defined NOT_IN_libc && defined IS_IN_libpthread -# define LIBC_CANCEL_ASYNC() CANCEL_ASYNC () -# define LIBC_CANCEL_RESET(val) CANCEL_RESET (val) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__pthread_disable_asynccancel") -#elif defined NOT_IN_libc && defined IS_IN_librt -# define LIBC_CANCEL_ASYNC() \ - __librt_enable_asynccancel () -# define LIBC_CANCEL_RESET(val) \ - __librt_disable_asynccancel (val) -# define LIBC_CANCEL_HANDLED() \ - __asm (".globl " __SYMBOL_PREFIX "__librt_enable_asynccancel"); \ - __asm (".globl " __SYMBOL_PREFIX "__librt_disable_asynccancel") -#else -# define LIBC_CANCEL_ASYNC() 0 /* Just a dummy value. */ -# define LIBC_CANCEL_RESET(val) ((void)(val)) /* Nothing, but evaluate it. */ -# define LIBC_CANCEL_HANDLED() /* Nothing. */ -#endif - -/* The signal used for asynchronous cancelation. */ -#define SIGCANCEL __SIGRTMIN - - -/* Signal needed for the kernel-supported POSIX timer implementation. - We can reuse the cancellation signal since we can distinguish - cancellation from timer expirations. */ -#define SIGTIMER SIGCANCEL - - -/* Signal used to implement the setuid et.al. functions. */ -#define SIGSETXID (__SIGRTMIN + 1) - -/* Used to communicate with signal handler. */ -extern struct xid_command *__xidcmd attribute_hidden; - - -/* Internal prototypes. */ - -/* Thread list handling. */ -extern struct pthread *__find_in_stack_list (struct pthread *pd) - attribute_hidden internal_function; - -/* Deallocate a thread's stack after optionally making sure the thread - descriptor is still valid. */ -extern void __free_tcb (struct pthread *pd) attribute_hidden internal_function; - -/* Free allocated stack. */ -extern void __deallocate_stack (struct pthread *pd) - attribute_hidden internal_function; - -/* Mark all the stacks except for the current one as available. This - function also re-initializes the lock for the stack cache. */ -extern void __reclaim_stacks (void) attribute_hidden; - -/* Make all threads's stacks executable. */ -extern int __make_stacks_executable (void **stack_endp) - internal_function attribute_hidden; - -/* longjmp handling. */ -extern void __pthread_cleanup_upto (__jmp_buf target, char *targetframe); -#if defined NOT_IN_libc && defined IS_IN_libpthread -hidden_proto (__pthread_cleanup_upto) -#endif - - -/* Functions with versioned interfaces. */ -extern int __pthread_create_2_1 (pthread_t *newthread, - const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg); -extern int __pthread_create_2_0 (pthread_t *newthread, - const pthread_attr_t *attr, - void *(*start_routine) (void *), void *arg); -extern int __pthread_attr_init_2_1 (pthread_attr_t *attr); -extern int __pthread_attr_init_2_0 (pthread_attr_t *attr); - - -/* Event handlers for libthread_db interface. */ -extern void __nptl_create_event (void); -extern void __nptl_death_event (void); -hidden_proto (__nptl_create_event) -hidden_proto (__nptl_death_event) - -/* Register the generation counter in the libpthread with the libc. */ -#ifdef TLS_MULTIPLE_THREADS_IN_TCB -extern void __libc_pthread_init (unsigned long int *ptr, - void (*reclaim) (void), - const struct pthread_functions *functions) - internal_function; -#else -extern int *__libc_pthread_init (unsigned long int *ptr, - void (*reclaim) (void), - const struct pthread_functions *functions) - internal_function; - -/* Variable set to a nonzero value if more than one thread runs or ran. */ -extern int __pthread_multiple_threads attribute_hidden; -/* Pointer to the corresponding variable in libc. */ -extern int *__libc_multiple_threads_ptr attribute_hidden; -#endif - -/* Find a thread given its TID. */ -extern struct pthread *__find_thread_by_id (pid_t tid) attribute_hidden -#ifdef SHARED -; -#else -weak_function; -#define __find_thread_by_id(tid) \ - (__find_thread_by_id ? (__find_thread_by_id) (tid) : (struct pthread *) NULL) -#endif - -extern void __pthread_init_static_tls (struct link_map *) attribute_hidden; - - -/* Namespace save aliases. */ -extern int __pthread_getschedparam (pthread_t thread_id, int *policy, - struct sched_param *param); -extern int __pthread_setschedparam (pthread_t thread_id, int policy, - const struct sched_param *param); -extern int __pthread_setcancelstate (int state, int *oldstate); -extern int __pthread_mutex_init (pthread_mutex_t *__mutex, - __const pthread_mutexattr_t *__mutexattr); -extern int __pthread_mutex_init_internal (pthread_mutex_t *__mutex, - __const pthread_mutexattr_t *__mutexattr) - attribute_hidden; -extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex); -extern int __pthread_mutex_destroy_internal (pthread_mutex_t *__mutex) - attribute_hidden; -extern int __pthread_mutex_trylock (pthread_mutex_t *_mutex); -extern int __pthread_mutex_lock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_lock_internal (pthread_mutex_t *__mutex) - attribute_hidden; -extern int __pthread_mutex_cond_lock (pthread_mutex_t *__mutex) - attribute_hidden internal_function; -extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex); -extern int __pthread_mutex_unlock_internal (pthread_mutex_t *__mutex) - attribute_hidden; -extern int __pthread_mutex_unlock_usercnt (pthread_mutex_t *__mutex, - int __decr) - attribute_hidden internal_function; -extern int __pthread_mutexattr_init (pthread_mutexattr_t *attr); -extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *attr); -extern int __pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind); -extern int __pthread_attr_destroy (pthread_attr_t *attr); -extern int __pthread_attr_getdetachstate (const pthread_attr_t *attr, - int *detachstate); -extern int __pthread_attr_setdetachstate (pthread_attr_t *attr, - int detachstate); -extern int __pthread_attr_getinheritsched (const pthread_attr_t *attr, - int *inherit); -extern int __pthread_attr_setinheritsched (pthread_attr_t *attr, int inherit); -extern int __pthread_attr_getschedparam (const pthread_attr_t *attr, - struct sched_param *param); -extern int __pthread_attr_setschedparam (pthread_attr_t *attr, - const struct sched_param *param); -extern int __pthread_attr_getschedpolicy (const pthread_attr_t *attr, - int *policy); -extern int __pthread_attr_setschedpolicy (pthread_attr_t *attr, int policy); -extern int __pthread_attr_getscope (const pthread_attr_t *attr, int *scope); -extern int __pthread_attr_setscope (pthread_attr_t *attr, int scope); -extern int __pthread_attr_getstackaddr (__const pthread_attr_t *__restrict - __attr, void **__restrict __stackaddr); -extern int __pthread_attr_setstackaddr (pthread_attr_t *__attr, - void *__stackaddr); -extern int __pthread_attr_getstacksize (__const pthread_attr_t *__restrict - __attr, - size_t *__restrict __stacksize); -extern int __pthread_attr_setstacksize (pthread_attr_t *__attr, - size_t __stacksize); -extern int __pthread_attr_getstack (__const pthread_attr_t *__restrict __attr, - void **__restrict __stackaddr, - size_t *__restrict __stacksize); -extern int __pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, - size_t __stacksize); -extern int __pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, - __const pthread_rwlockattr_t *__restrict - __attr); -extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_rdlock_internal (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_wrlock_internal (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock); -extern int __pthread_rwlock_unlock_internal (pthread_rwlock_t *__rwlock); -extern int __pthread_cond_broadcast (pthread_cond_t *cond); -extern int __pthread_cond_destroy (pthread_cond_t *cond); -extern int __pthread_cond_init (pthread_cond_t *cond, - const pthread_condattr_t *cond_attr); -extern int __pthread_cond_signal (pthread_cond_t *cond); -extern int __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex); -extern int __pthread_cond_timedwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -extern int __pthread_condattr_destroy (pthread_condattr_t *attr); -extern int __pthread_condattr_init (pthread_condattr_t *attr); -extern int __pthread_key_create (pthread_key_t *key, void (*destr) (void *)); -extern int __pthread_key_create_internal (pthread_key_t *key, - void (*destr) (void *)); -extern void *__pthread_getspecific (pthread_key_t key); -extern void *__pthread_getspecific_internal (pthread_key_t key); -extern int __pthread_setspecific (pthread_key_t key, const void *value); -extern int __pthread_setspecific_internal (pthread_key_t key, - const void *value); -extern int __pthread_once (pthread_once_t *once_control, - void (*init_routine) (void)); -extern int __pthread_once_internal (pthread_once_t *once_control, - void (*init_routine) (void)); -extern int __pthread_atfork (void (*prepare) (void), void (*parent) (void), - void (*child) (void)); -extern pthread_t __pthread_self (void); -extern int __pthread_equal (pthread_t thread1, pthread_t thread2); -extern int __pthread_kill (pthread_t threadid, int signo); -extern void __pthread_exit (void *value); -extern int __pthread_setcanceltype (int type, int *oldtype); -extern int __pthread_enable_asynccancel (void) attribute_hidden; -extern void __pthread_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - -extern int __pthread_cond_broadcast_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_destroy_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_init_2_0 (pthread_cond_2_0_t *cond, - const pthread_condattr_t *cond_attr); -extern int __pthread_cond_signal_2_0 (pthread_cond_2_0_t *cond); -extern int __pthread_cond_timedwait_2_0 (pthread_cond_2_0_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); -extern int __pthread_cond_wait_2_0 (pthread_cond_2_0_t *cond, - pthread_mutex_t *mutex); - -extern int __pthread_getaffinity_np (pthread_t th, size_t cpusetsize, - cpu_set_t *cpuset); - -/* The two functions are in libc.so and not exported. */ -extern int __libc_enable_asynccancel (void) attribute_hidden; -extern void __libc_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - - -/* The two functions are in librt.so and not exported. */ -extern int __librt_enable_asynccancel (void) attribute_hidden; -extern void __librt_disable_asynccancel (int oldtype) - internal_function attribute_hidden; - -#ifdef IS_IN_libpthread -/* Special versions which use non-exported functions. */ -extern void __pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg) - attribute_hidden; -# undef pthread_cleanup_push -# define pthread_cleanup_push(routine,arg) \ - { struct _pthread_cleanup_buffer _buffer; \ - __pthread_cleanup_push (&_buffer, (routine), (arg)); - -extern void __pthread_cleanup_pop (struct _pthread_cleanup_buffer *buffer, - int execute) attribute_hidden; -# undef pthread_cleanup_pop -# define pthread_cleanup_pop(execute) \ - __pthread_cleanup_pop (&_buffer, (execute)); } -#endif - -extern void __pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void __pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer, - int execute); - -/* Old cleanup interfaces, still used in libc.so. */ -extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *buffer, - int execute); -extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *buffer, - void (*routine) (void *), void *arg); -extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *buffer, - int execute); - -extern void __nptl_deallocate_tsd (void) attribute_hidden; - -extern int __nptl_setxid (struct xid_command *cmdp) attribute_hidden; - -#ifdef SHARED -# define PTHREAD_STATIC_FN_REQUIRE(name) -#else -# define PTHREAD_STATIC_FN_REQUIRE(name) __asm (".globl " #name); -#endif - -#endif /* pthreadP.h */ |