| /* Threads compatibility routines for libgcc2. */ |
| /* Compile this one with gcc. */ |
| /* Copyright (C) 2003 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| 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. |
| |
| 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 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, |
| this library does not by itself 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. */ |
| |
| |
| #include "gthr-gnat.h" |
| |
| #ifdef __cplusplus |
| #define UNUSED(x) |
| #else |
| #define UNUSED(x) x __attribute__((unused)) |
| #endif |
| |
| void __gnat_default_lock (void); |
| void __gnat_default_unlock (void); |
| |
| void |
| __gnat_default_lock (void) |
| { |
| return; |
| } |
| |
| void |
| __gnat_default_unlock (void) |
| { |
| return; |
| } |
| |
| static void (*__gnat_task_lock) (void) = *__gnat_default_lock; |
| static void (*__gnat_task_unlock) (void) = *__gnat_default_unlock; |
| |
| void |
| __gnat_install_locks (void (*lock) (void), void (*unlock) (void)) |
| { |
| __gnat_task_lock = lock; |
| __gnat_task_unlock = unlock; |
| } |
| |
| int |
| __gthread_active_p (void) |
| { |
| return 0; |
| } |
| |
| int |
| __gthread_mutex_lock (__gthread_mutex_t * UNUSED (mutex)) |
| { |
| __gnat_task_lock (); |
| return 0; |
| } |
| |
| int |
| __gthread_mutex_unlock (__gthread_mutex_t * UNUSED (mutex)) |
| { |
| __gnat_task_unlock (); |
| return 0; |
| } |