Applied H.J.Lu's patch to not require -lpthread when compiling single threaded Objective-C programs.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35141 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 181 insertions, 0 deletions

diff --git a/libobjc/thr-objc.c b/libobjc/thr-objc.c
new file mode 100644
index 00000000000..48150f0ef3e
--- /dev/null
+++ b/libobjc/thr-objc.c
@@ -0,0 +1,181 @@
+/* GNU Objective C Runtime Thread Interface.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 2, or (at your option) any later version.
+
+GNU CC 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 General Public License for more
+details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, if you link this library with files compiled with
+   GCC to produce an executable, this does not cause the resulting executable
+   to be covered by the GNU General Public License. This exception does not
+   however invalidate any other reasons why the executable file might be
+   covered by the GNU General Public License.  */
+
+#define _LIBOBJC
+#include "tconfig.h"
+#include "defaults.h"
+#include <objc/thr.h>
+#include "runtime.h"
+#include <gthr.h>
+
+/* Backend initialization functions */
+
+/* Initialize the threads subsystem. */
+int
+__objc_init_thread_system(void)
+{
+  return __gthread_objc_init_thread_system ();
+}
+
+/* Close the threads subsystem. */
+int
+__objc_close_thread_system(void)
+{
+  return __gthread_objc_close_thread_system ();
+}
+
+/* Backend thread functions */
+
+/* Create a new thread of execution. */
+objc_thread_t
+__objc_thread_detach(void (*func)(void *), void *arg)
+{
+  return __gthread_objc_thread_detach (func, arg);
+}
+
+/* Set the current thread's priority. */
+int
+__objc_thread_set_priority(int priority)
+{
+  return __gthread_objc_thread_set_priority (priority);
+}
+
+/* Return the current thread's priority. */
+int
+__objc_thread_get_priority(void)
+{
+  return __gthread_objc_thread_get_priority ();
+}
+
+/* Yield our process time to another thread. */
+void
+__objc_thread_yield(void)
+{
+  __gthread_objc_thread_yield ();
+}
+
+/* Terminate the current thread. */
+int
+__objc_thread_exit(void)
+{
+  return __gthread_objc_thread_exit ();
+}
+
+/* Returns an integer value which uniquely describes a thread. */
+objc_thread_t
+__objc_thread_id(void)
+{
+  return __gthread_objc_thread_id ();
+}
+
+/* Sets the thread's local storage pointer. */
+int
+__objc_thread_set_data(void *value)
+{
+  return __gthread_objc_thread_set_data (value);
+}
+
+/* Returns the thread's local storage pointer. */
+void *
+__objc_thread_get_data(void)
+{
+  return __gthread_objc_thread_get_data ();
+}
+
+/* Backend mutex functions */
+
+/* Allocate a mutex. */
+int
+__objc_mutex_allocate(objc_mutex_t mutex)
+{
+  return __gthread_objc_mutex_allocate (mutex);
+}
+
+/* Deallocate a mutex. */
+int
+__objc_mutex_deallocate(objc_mutex_t mutex)
+{
+  return __gthread_objc_mutex_deallocate (mutex);
+}
+
+/* Grab a lock on a mutex. */
+int
+__objc_mutex_lock(objc_mutex_t mutex)
+{
+  return __gthread_objc_mutex_lock (mutex);
+}
+
+/* Try to grab a lock on a mutex. */
+int
+__objc_mutex_trylock(objc_mutex_t mutex)
+{
+  return __gthread_objc_mutex_trylock (mutex);
+}
+
+/* Unlock the mutex */
+int
+__objc_mutex_unlock(objc_mutex_t mutex)
+{
+  return __gthread_objc_mutex_unlock (mutex);
+}
+
+/* Backend condition mutex functions */
+
+/* Allocate a condition. */
+int
+__objc_condition_allocate(objc_condition_t condition)
+{
+  return __gthread_objc_condition_allocate (condition);
+}
+
+/* Deallocate a condition. */
+int
+__objc_condition_deallocate(objc_condition_t condition)
+{
+  return __gthread_objc_condition_deallocate (condition);
+}
+
+/* Wait on the condition */
+int
+__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex)
+{
+  return __gthread_objc_condition_wait (condition, mutex);
+}
+
+/* Wake up all threads waiting on this condition. */
+int
+__objc_condition_broadcast(objc_condition_t condition)
+{
+  return __gthread_objc_condition_broadcast (condition);
+}
+
+/* Wake up one thread waiting on this condition. */
+int
+__objc_condition_signal(objc_condition_t condition)
+{
+  return __gthread_objc_condition_signal (condition);
+}
+
+/* End of File */