2004-08-17 Paolo Bonzini <bonzini@gnu.org>

[pf3gnuchains/gcc-fork.git] / gcc / gthr.h

diff --git a/gcc/gthr.h b/gcc/gthr.h
index d1028cb..22b2ecd 100644 (file)
--- a/gcc/gthr.h
+++ b/gcc/gthr.h
@@ -1,23 +1,23 @@
-/* Threads compatibily routines for libgcc2.  */
+/* Threads compatibility routines for libgcc2.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
 
-This file is part of GNU CC.
+This file is part of GCC.
 
-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.
+GCC 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.
+GCC 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.  */
+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.  */
 
 /* As a special exception, if you link this library with other files,
    some of which are compiled with GCC, to produce an executable,
@@ -26,13 +26,15 @@ Boston, MA 02111-1307, USA.  */
    This exception does not however invalidate any other reasons why
    the executable file might be covered by the GNU General Public License.  */
 
-#ifndef __gthr_h
-#define __gthr_h
+#ifndef GCC_GTHR_H
+#define GCC_GTHR_H
+
+#pragma GCC visibility push(default)
 
 /* If this file is compiled with threads support, it must
        #define __GTHREADS 1
    to indicate that threads support is present.  Also it has define
-   function 
+   function
      int __gthread_active_p ()
    that returns 1 if thread system is active, 0 if not.
 
@@ -48,6 +50,12 @@ Boston, MA 02111-1307, USA.  */
      __GTHREAD_MUTEX_INIT
                to initialize __gthread_mutex_t to get a fast
                non-recursive mutex.
+     __GTHREAD_MUTEX_INIT_FUNCTION
+               some systems can't initialize a mutex without a
+               function call.  On such systems, define this to a
+               function which looks like this:
+                 void __GTHREAD_MUTEX_INIT_FUNCTION (__gthread_mutex_t *)
+               Don't define __GTHREAD_MUTEX_INIT in this case
 
    The threads interface must define the following static functions:
 
@@ -56,8 +64,6 @@ Boston, MA 02111-1307, USA.  */
      int __gthread_key_create (__gthread_key_t *keyp, void (*dtor) (void *))
      int __gthread_key_delete (__gthread_key_t key)
 
-     int __gthread_key_dtor (__gthread_key_t key, void *ptr)
-
      void *__gthread_getspecific (__gthread_key_t key)
      int __gthread_setspecific (__gthread_key_t key, const void *ptr)
 
@@ -74,7 +80,7 @@ Boston, MA 02111-1307, USA.  */
      Solaris/UI threads with -D_SOLARIS_THREADS
 */
 
-/* Check first for thread specific defines. */
+/* Check first for thread specific defines.  */
 #if _PTHREADS
 #include "gthr-posix.h"
 #elif _DCE_THREADS
@@ -82,7 +88,7 @@ Boston, MA 02111-1307, USA.  */
 #elif _SOLARIS_THREADS
 #include "gthr-solaris.h"
 
-/* Include GTHREAD_FILE if one is defined. */
+/* Include GTHREAD_FILE if one is defined.  */
 #elif defined(HAVE_GTHR_DEFAULT)
 #if SUPPORTS_WEAK
 #ifndef GTHREAD_USE_WEAK
@@ -91,9 +97,11 @@ Boston, MA 02111-1307, USA.  */
 #endif
 #include "gthr-default.h"
 
-/* Fallback to single thread definitions. */
+/* Fallback to single thread definitions.  */
 #else
 #include "gthr-single.h"
 #endif
 
-#endif /* not __gthr_h */
+#pragma GCC visibility pop
+
+#endif /* ! GCC_GTHR_H */