235 lines
6.0 KiB
C
235 lines
6.0 KiB
C
/* Threads compatibility routines for libgcc2 and libobjc.
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Compile this one with gcc.
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Copyright (C) 2004-2014 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* TPF needs its own version of gthr-*.h because TPF always links to
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the thread library. However, for performance reasons we still do not
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want to issue thread api calls unless a check is made to see that we
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are running as a thread. */
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#ifndef GCC_GTHR_TPF_H
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#define GCC_GTHR_TPF_H
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/* POSIX threads specific definitions.
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Easy, since the interface is just one-to-one mapping. */
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#define __GTHREADS 1
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/* Some implementations of <pthread.h> require this to be defined. */
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#ifndef _REENTRANT
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#define _REENTRANT 1
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#endif
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#include <pthread.h>
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#include <unistd.h>
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typedef pthread_key_t __gthread_key_t;
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typedef pthread_once_t __gthread_once_t;
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typedef pthread_mutex_t __gthread_mutex_t;
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typedef pthread_mutex_t __gthread_recursive_mutex_t;
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#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
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#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER
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#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP)
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#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP
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#endif
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#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
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#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT
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#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
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#define NOTATHREAD 00
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#define ECBBASEPTR (unsigned long int) *(unsigned int *)0x00000514u
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#define ECBPG2PTR ECBBASEPTR + 0x1000
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#define CE2THRCPTR *((unsigned char *)(ECBPG2PTR + 16))
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#define __tpf_pthread_active() (CE2THRCPTR != NOTATHREAD)
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#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
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# define __gthrw(name) \
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static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
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# define __gthrw_(name) __gthrw_ ## name
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#else
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# define __gthrw(name)
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# define __gthrw_(name) name
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#endif
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__gthrw(pthread_once)
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__gthrw(pthread_key_create)
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__gthrw(pthread_key_delete)
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__gthrw(pthread_getspecific)
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__gthrw(pthread_setspecific)
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__gthrw(pthread_create)
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__gthrw(pthread_mutex_lock)
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__gthrw(pthread_mutex_trylock)
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__gthrw(pthread_mutex_unlock)
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__gthrw(pthread_mutexattr_init)
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__gthrw(pthread_mutexattr_settype)
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__gthrw(pthread_mutexattr_destroy)
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__gthrw(pthread_mutex_init)
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__gthrw(pthread_mutex_destroy)
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static inline int
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__gthread_active_p (void)
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{
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return 1;
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}
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static inline int
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__gthread_once (__gthread_once_t *__once, void (*__func) (void))
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_once) (__once, __func);
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else
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return -1;
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}
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static inline int
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__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_key_create) (__key, __dtor);
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else
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return -1;
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}
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static inline int
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__gthread_key_delete (__gthread_key_t __key)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_key_delete) (__key);
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else
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return -1;
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}
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static inline void *
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__gthread_getspecific (__gthread_key_t __key)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_getspecific) (__key);
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else
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return NULL;
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}
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static inline int
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__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_setspecific) (__key, __ptr);
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else
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return -1;
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}
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static inline int
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__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_mutex_destroy) (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_mutex_lock (__gthread_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_mutex_lock) (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_mutex_trylock) (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthrw_(pthread_mutex_unlock) (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthread_mutex_lock (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthread_mutex_trylock (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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return __gthread_mutex_unlock (__mutex);
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else
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return 0;
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}
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static inline int
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__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
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{
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if (__tpf_pthread_active ())
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{
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pthread_mutexattr_t __attr;
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int __r;
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__r = __gthrw_(pthread_mutexattr_init) (&__attr);
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if (!__r)
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__r = __gthrw_(pthread_mutexattr_settype) (&__attr,
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PTHREAD_MUTEX_RECURSIVE);
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if (!__r)
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__r = __gthrw_(pthread_mutex_init) (__mutex, &__attr);
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if (!__r)
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__r = __gthrw_(pthread_mutexattr_destroy) (&__attr);
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return __r;
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}
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return 0;
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}
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static inline int
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__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex)
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{
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return __gthread_mutex_destroy (__mutex);
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}
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#endif /* ! GCC_GTHR_TPF_H */
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