| 0,0 → 1,103 |
|---|
| /* Threads compatibility routines for libgcc2. */ |
| /* Compile this one with gcc. */ |
| /* Copyright (C) 1997, 1998, 2004, 2008, 2009 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 3, 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef GCC_GTHR_H |
| #define GCC_GTHR_H |
| |
| typedef unsigned int __gthread_key_t; |
| |
| typedef struct { |
| volatile int done; |
| int started; |
| } __gthread_once_t; |
| |
| typedef struct { |
| volatile int counter; |
| } __gthread_mutex_t; |
| |
| |
| void *tls_alloc(void); |
| |
| static int __gthread_mutex_lock (__gthread_mutex_t *mutex) |
| { |
| __mutex_lock(&mutex->counter); |
| return 0; |
| }; |
| |
| static int __gthread_mutex_unlock (__gthread_mutex_t *mutex) |
| { |
| mutex->counter = 0; |
| return 0; |
| }; |
| |
| static inline int __gthread_key_create (__gthread_key_t *__key, |
| void (*__dtor) (void *) __attribute__((unused))) |
| { |
| int __status = 0; |
| void *__tls_index = tls_alloc(); |
| if (__tls_index != NULL) |
| { |
| *__key = (unsigned int)__tls_index; |
| |
| #ifdef MINGW32_SUPPORTS_MT_EH /* FIXME */ |
| /* Mingw runtime will run the dtors in reverse order for each thread |
| when the thread exits. */ |
| // __status = __mingwthr_key_dtor (*__key, __dtor); |
| #endif |
| |
| } |
| else |
| __status = (int) ENOMEM; |
| return __status; |
| } |
| |
| |
| static inline void * |
| __gthread_getspecific (__gthread_key_t __key) |
| { |
| void *val; |
| __asm__ __volatile__( |
| "movl %%fs:(%1), %0" |
| :"=r"(val) |
| :"r"(__key)); |
| |
| return val; |
| }; |
| |
| static inline int |
| __gthread_setspecific (__gthread_key_t __key, const void *__ptr) |
| { |
| if(!(__key & 3)) |
| { |
| __asm__ __volatile__( |
| "movl %0, %%fs:(%1)" |
| ::"r"(__ptr),"r"(__key)); |
| return 0; |
| } |
| else return EINVAL; |
| } |
| |
| |
| #endif |