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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/gthr-tpf.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/gthr-tpf.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/gthr-tpf.h b/gcc-4.2.1-5666.3/gcc/gthr-tpf.h new file mode 100644 index 000000000..b63d527e8 --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/gthr-tpf.h @@ -0,0 +1,222 @@ +/* Threads compatibility routines for libgcc2 and libobjc. + Compile this one with gcc. + Copyright (C) 2004, 2005 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, 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, + 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. */ + + +/* TPF needs its own version of gthr-*.h because TPF always links to + the thread library. However, for performance reasons we still do not + want to issue thread api calls unless a check is made to see that we + are running as a thread. */ + +#ifndef GCC_GTHR_TPF_H +#define GCC_GTHR_TPF_H + +/* POSIX threads specific definitions. + Easy, since the interface is just one-to-one mapping. */ + +#define __GTHREADS 1 + +/* Some implementations of <pthread.h> require this to be defined. */ +#ifndef _REENTRANT +#define _REENTRANT 1 +#endif + +#include <pthread.h> +#include <unistd.h> + +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; + +#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) +#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER +#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) +#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP +#endif + +#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER +#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT +#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function + +#define NOTATHREAD 00 +#define ECBBASEPTR (unsigned long int) *(unsigned int *)0x00000514u +#define ECBPG2PTR ECBBASEPTR + 0x1000 +#define CE2THRCPTR *((unsigned char *)(ECBPG2PTR + 16)) +#define __tpf_pthread_active() (CE2THRCPTR != NOTATHREAD) + +#if SUPPORTS_WEAK && GTHREAD_USE_WEAK +# define __gthrw(name) \ + static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name))); +# define __gthrw_(name) __gthrw_ ## name +#else +# define __gthrw(name) +# define __gthrw_(name) name +#endif + +__gthrw(pthread_once) +__gthrw(pthread_key_create) +__gthrw(pthread_key_delete) +__gthrw(pthread_getspecific) +__gthrw(pthread_setspecific) +__gthrw(pthread_create) + +__gthrw(pthread_mutex_lock) +__gthrw(pthread_mutex_trylock) +__gthrw(pthread_mutex_unlock) +__gthrw(pthread_mutexattr_init) +__gthrw(pthread_mutexattr_settype) +__gthrw(pthread_mutexattr_destroy) +__gthrw(pthread_mutex_init) + +static inline int +__gthread_active_p (void) +{ + return 1; +} + +static inline int +__gthread_once (__gthread_once_t *once, void (*func) (void)) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_once) (once, func); + else + return -1; +} + +static inline int +__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *)) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_key_create) (key, dtor); + else + return -1; +} + +static inline int +__gthread_key_delete (__gthread_key_t key) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_key_delete) (key); + else + return -1; +} + +static inline void * +__gthread_getspecific (__gthread_key_t key) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_getspecific) (key); + else + return NULL; +} + +static inline int +__gthread_setspecific (__gthread_key_t key, const void *ptr) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_setspecific) (key, ptr); + else + return -1; +} + +static inline int +__gthread_mutex_lock (__gthread_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_mutex_lock) (mutex); + else + return 0; +} + +static inline int +__gthread_mutex_trylock (__gthread_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_mutex_trylock) (mutex); + else + return 0; +} + +static inline int +__gthread_mutex_unlock (__gthread_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthrw_(pthread_mutex_unlock) (mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthread_mutex_lock (mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthread_mutex_trylock (mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + return __gthread_mutex_unlock (mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex) +{ + if (__tpf_pthread_active ()) + { + pthread_mutexattr_t attr; + int r; + + r = __gthrw_(pthread_mutexattr_init) (&attr); + if (!r) + r = __gthrw_(pthread_mutexattr_settype) (&attr, PTHREAD_MUTEX_RECURSIVE); + if (!r) + r = __gthrw_(pthread_mutex_init) (mutex, &attr); + if (!r) + r = __gthrw_(pthread_mutexattr_destroy) (&attr); + return r; + } + return 0; +} + + +#endif /* ! GCC_GTHR_TPF_H */ |