-
+/* Threads compatibility routines for libgcc2 and libobjc. */
/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2001, 2004, 2005
+ Free Software Foundation, Inc.
This file is part of GCC.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
/* As a special exception, if you link this library with other files,
some of which are compiled with GCC, to produce an executable,
typedef pthread_key_t __gthread_key_t;
typedef pthread_once_t __gthread_once_t;
typedef pthread_mutex_t __gthread_mutex_t;
+typedef pthread_mutex_t __gthread_recursive_mutex_t;
-#define __GTHREAD_ONCE_INIT pthread_once_init
+#define __GTHREAD_ONCE_INIT __gthrw_pthread_once_init
#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
-#define __GTHREAD_MUTEX_INIT_DEFAULT pthread_once_init
+#define __GTHREAD_MUTEX_INIT_DEFAULT __gthrw_pthread_once_init
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+# define __gthrw(name) \
+ static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)))
+#else
+# define __gthrw_asmname(cname) __gthrw_asmnamep (__USER_LABEL_PREFIX__, cname)
+# define __gthrw_asmnamep(prefix, cname) __gthrw_string (prefix) cname
+# define __gthrw_string(x) #x
+# define __gthrw(name) \
+ extern __typeof(name) __gthrw_ ## name __asm (__gthrw_asmname (#name))
+#endif
-#pragma weak pthread_once
-#pragma weak pthread_once_init
-#pragma weak pthread_keycreate
-#pragma weak pthread_key_delete
-#pragma weak pthread_getspecific
-#pragma weak pthread_setspecific
-#pragma weak pthread_create
-#pragma weak pthread_mutex_init
-#pragma weak pthread_mutex_lock
-#pragma weak pthread_mutex_trylock
-#pragma weak pthread_mutex_unlock
+__gthrw(pthread_once);
+__gthrw(pthread_once_init);
+__gthrw(pthread_keycreate);
+__gthrw(pthread_key_delete);
+__gthrw(pthread_getspecific);
+__gthrw(pthread_setspecific);
+__gthrw(pthread_create);
+__gthrw(pthread_mutex_init);
+__gthrw(pthread_mutex_lock);
+__gthrw(pthread_mutex_trylock);
+__gthrw(pthread_mutex_unlock);
+__gthrw(pthread_mutexattr_create);
+__gthrw(pthread_mutexattr_setkind_np);
+__gthrw(pthread_mutexattr_delete);
#ifdef _LIBOBJC
/* Objective-C. */
-#pragma weak pthread_cond_broadcast
-#pragma weak pthread_cond_destroy
-#pragma weak pthread_cond_init
-#pragma weak pthread_cond_signal
-#pragma weak pthread_cond_wait
-#pragma weak pthread_exit
-#pragma weak pthread_getunique_np
-#pragma weak pthread_mutex_destroy
-#pragma weak pthread_self
-#pragma weak pthread_yield
+__gthrw(pthread_cond_broadcast);
+__gthrw(pthread_cond_destroy);
+__gthrw(pthread_cond_init);
+__gthrw(pthread_cond_signal);
+__gthrw(pthread_cond_wait);
+__gthrw(pthread_exit);
+__gthrw(pthread_getunique_np);
+__gthrw(pthread_mutex_destroy);
+__gthrw(pthread_self);
+__gthrw(pthread_yield);
#endif
+#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+
static inline int
__gthread_active_p (void)
{
- static void *const __gthread_active_ptr = (void *) &pthread_create;
+ static void *const __gthread_active_ptr = (void *) &__gthrw_pthread_create;
return __gthread_active_ptr != 0;
}
__gthread_objc_init_thread_system (void)
{
if (__gthread_active_p ())
- /* Initialize the thread storage key */
- return pthread_keycreate (&_objc_thread_storage, NULL);
+ /* Initialize the thread storage key. */
+ return __gthrw_pthread_keycreate (&_objc_thread_storage, NULL);
else
return -1;
}
if (!__gthread_active_p ())
return NULL;
- if (!(pthread_create (&new_thread_handle, pthread_attr_default,
+ if (!(__gthrw_pthread_create (&new_thread_handle, pthread_attr_default,
(void *) func, arg)))
{
/* ??? May not work! (64bit) */
}
/* Change the priority. */
- if (pthread_setprio (pthread_self (), sys_priority) >= 0)
+ if (pthread_setprio (__gthrw_pthread_self (), sys_priority) >= 0)
return 0;
else
/* Failed */
if (__gthread_active_p ())
{
- if ((sys_priority = pthread_getprio (pthread_self ())) >= 0)
+ if ((sys_priority = pthread_getprio (__gthrw_pthread_self ())) >= 0)
{
if (sys_priority >= PRI_FG_MIN_NP
&& sys_priority <= PRI_FG_MAX_NP)
__gthread_objc_thread_yield (void)
{
if (__gthread_active_p ())
- pthread_yield ();
+ __gthrw_pthread_yield ();
}
/* Terminate the current thread. */
{
if (__gthread_active_p ())
/* exit the thread */
- pthread_exit (&__objc_thread_exit_status);
+ __gthrw_pthread_exit (&__objc_thread_exit_status);
/* Failed if we reached here */
return -1;
{
if (__gthread_active_p ())
{
- pthread_t self = pthread_self ();
+ pthread_t self = __gthrw_pthread_self ();
- return (objc_thread_t) pthread_getunique_np (&self);
+ return (objc_thread_t) __gthrw_pthread_getunique_np (&self);
}
else
return (objc_thread_t) 1;
__gthread_objc_thread_set_data (void *value)
{
if (__gthread_active_p ())
- return pthread_setspecific (_objc_thread_storage, value);
+ return __gthrw_pthread_setspecific (_objc_thread_storage, value);
else
{
thread_local_storage = value;
if (__gthread_active_p ())
{
- if (!(pthread_getspecific (_objc_thread_storage, &value)))
+ if (!(__gthrw_pthread_getspecific (_objc_thread_storage, &value)))
return value;
return NULL;
{
mutex->backend = objc_malloc (sizeof (pthread_mutex_t));
- if (pthread_mutex_init ((pthread_mutex_t *) mutex->backend,
+ if (__gthrw_pthread_mutex_init ((pthread_mutex_t *) mutex->backend,
pthread_mutexattr_default))
{
objc_free (mutex->backend);
{
if (__gthread_active_p ())
{
- if (pthread_mutex_destroy ((pthread_mutex_t *) mutex->backend))
+ if (__gthrw_pthread_mutex_destroy ((pthread_mutex_t *) mutex->backend))
return -1;
objc_free (mutex->backend);
__gthread_objc_mutex_lock (objc_mutex_t mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_lock ((pthread_mutex_t *) mutex->backend);
+ return __gthrw_pthread_mutex_lock ((pthread_mutex_t *) mutex->backend);
else
return 0;
}
__gthread_objc_mutex_trylock (objc_mutex_t mutex)
{
if (__gthread_active_p ()
- && pthread_mutex_trylock ((pthread_mutex_t *) mutex->backend) != 1)
+ && __gthrw_pthread_mutex_trylock ((pthread_mutex_t *) mutex->backend) != 1)
return -1;
return 0;
__gthread_objc_mutex_unlock (objc_mutex_t mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_unlock ((pthread_mutex_t *) mutex->backend);
+ return __gthrw_pthread_mutex_unlock ((pthread_mutex_t *) mutex->backend);
else
return 0;
}
__gthread_once (__gthread_once_t *once, void (*func) (void))
{
if (__gthread_active_p ())
- return pthread_once (once, func);
+ return __gthrw_pthread_once (once, func);
else
return -1;
}
static inline int
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
{
- return pthread_keycreate (key, dtor);
+ return __gthrw_pthread_keycreate (key, dtor);
}
static inline int
__gthread_getspecific (__gthread_key_t key)
{
void *ptr;
- if (pthread_getspecific (key, &ptr) == 0)
+ if (__gthrw_pthread_getspecific (key, &ptr) == 0)
return ptr;
else
return 0;
static inline int
__gthread_setspecific (__gthread_key_t key, const void *ptr)
{
- return pthread_setspecific (key, (void *) ptr);
+ return __gthrw_pthread_setspecific (key, (void *) ptr);
}
static inline void
__gthread_mutex_init_function (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- pthread_mutex_init (mutex, pthread_mutexattr_default);
+ __gthrw_pthread_mutex_init (mutex, pthread_mutexattr_default);
}
static inline int
__gthread_mutex_lock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_lock (mutex);
+ return __gthrw_pthread_mutex_lock (mutex);
else
return 0;
}
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_trylock (mutex);
+ return __gthrw_pthread_mutex_trylock (mutex);
else
return 0;
}
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
{
if (__gthread_active_p ())
- return pthread_mutex_unlock (mutex);
+ return __gthrw_pthread_mutex_unlock (mutex);
else
return 0;
}
+static inline int
+__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
+{
+ if (__gthread_active_p ())
+ {
+ pthread_mutexattr_t attr;
+ int r;
+
+ r = __gthrw_pthread_mutexattr_create (&attr);
+ if (!r)
+ r = __gthrw_pthread_mutexattr_setkind_np (&attr, MUTEX_RECURSIVE_NP);
+ if (!r)
+ r = __gthrw_pthread_mutex_init (mutex, attr);
+ if (!r)
+ r = __gthrw_pthread_mutexattr_delete (&attr);
+ return r;
+ }
+}
+
+static inline int
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
+{
+ return __gthread_mutex_lock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
+{
+ return __gthread_mutex_trylock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
+{
+ return __gthread_mutex_unlock (mutex);
+}
+
#endif /* _LIBOBJC */
#undef UNUSED
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