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Diffstat (limited to 'gcc-4.9/libgcc/config/mips/gthr-mipssde.h')
| -rw-r--r-- | gcc-4.9/libgcc/config/mips/gthr-mipssde.h | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/mips/gthr-mipssde.h b/gcc-4.9/libgcc/config/mips/gthr-mipssde.h new file mode 100644 index 000000000..834701399 --- /dev/null +++ b/gcc-4.9/libgcc/config/mips/gthr-mipssde.h @@ -0,0 +1,237 @@ +/* MIPS SDE threads compatibility routines for libgcc2 and libobjc. */ +/* Compile this one with gcc. */ +/* Copyright (C) 2006-2014 Free Software Foundation, Inc. + Contributed by Nigel Stephens <nigel@mips.com> + +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_MIPSSDE_H +#define GCC_GTHR_MIPSSDE_H + +/* MIPS SDE threading API specific definitions. + Easy, since the interface is pretty much one-to-one. */ + +#define __GTHREADS 1 + +#include <sdethread.h> +#include <unistd.h> + +#ifdef __cplusplus +extern "C" { +#endif + +typedef __sdethread_key_t __gthread_key_t; +typedef __sdethread_once_t __gthread_once_t; +typedef __sdethread_mutex_t __gthread_mutex_t; + +typedef struct { + long depth; + __sdethread_t owner; + __sdethread_mutex_t actual; +} __gthread_recursive_mutex_t; + +#define __GTHREAD_MUTEX_INIT __SDETHREAD_MUTEX_INITIALIZER("gthr") +#define __GTHREAD_ONCE_INIT __SDETHREAD_ONCE_INIT +static inline int +__gthread_recursive_mutex_init_function(__gthread_recursive_mutex_t *__mutex); +#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function + +#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(__sdethread_once) +__gthrw(__sdethread_key_create) +__gthrw(__sdethread_key_delete) +__gthrw(__sdethread_getspecific) +__gthrw(__sdethread_setspecific) + +__gthrw(__sdethread_self) + +__gthrw(__sdethread_mutex_lock) +__gthrw(__sdethread_mutex_trylock) +__gthrw(__sdethread_mutex_unlock) + +__gthrw(__sdethread_mutex_init) + +__gthrw(__sdethread_threading) + +#if SUPPORTS_WEAK && GTHREAD_USE_WEAK + +static inline int +__gthread_active_p (void) +{ + return !!(void *)&__sdethread_threading; +} + +#else /* not SUPPORTS_WEAK */ + +static inline int +__gthread_active_p (void) +{ + return 1; +} + +#endif /* SUPPORTS_WEAK */ + +static inline int +__gthread_once (__gthread_once_t *__once, void (*__func) (void)) +{ + if (__gthread_active_p ()) + return __gthrw_(__sdethread_once) (__once, __func); + else + return -1; +} + +static inline int +__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) +{ + return __gthrw_(__sdethread_key_create) (__key, __dtor); +} + +static inline int +__gthread_key_delete (__gthread_key_t __key) +{ + return __gthrw_(__sdethread_key_delete) (__key); +} + +static inline void * +__gthread_getspecific (__gthread_key_t __key) +{ + return __gthrw_(__sdethread_getspecific) (__key); +} + +static inline int +__gthread_setspecific (__gthread_key_t __key, const void *__ptr) +{ + return __gthrw_(__sdethread_setspecific) (__key, __ptr); +} + +static inline int +__gthread_mutex_destroy (__gthread_mutex_t * UNUSED(__mutex)) +{ + return 0; +} + +static inline int +__gthread_mutex_lock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(__sdethread_mutex_lock) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_trylock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(__sdethread_mutex_trylock) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_unlock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(__sdethread_mutex_unlock) (__mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) +{ + __mutex->depth = 0; + __mutex->owner = __gthrw_(__sdethread_self) (); + return __gthrw_(__sdethread_mutex_init) (&__mutex->actual, NULL); +} + +static inline int +__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + { + __sdethread_t __me = __gthrw_(__sdethread_self) (); + + if (__mutex->owner != __me) + { + __gthrw_(__sdethread_mutex_lock) (&__mutex->actual); + __mutex->owner = __me; + } + + __mutex->depth++; + } + return 0; +} + +static inline int +__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + { + __sdethread_t __me = __gthrw_(__sdethread_self) (); + + if (__mutex->owner != __me) + { + if (__gthrw_(__sdethread_mutex_trylock) (&__mutex->actual)) + return 1; + __mutex->owner = __me; + } + + __mutex->depth++; + } + return 0; +} + +static inline int +__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + { + if (--__mutex->depth == 0) + { + __mutex->owner = (__sdethread_t) 0; + __gthrw_(__sdethread_mutex_unlock) (&__mutex->actual); + } + } + return 0; +} + +static inline int +__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t + * UNUSED(__mutex)) +{ + return 0; +} + +#ifdef __cplusplus +} +#endif + +#endif /* ! GCC_GTHR_MIPSSDE_H */ |