From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/gthr-solaris.h | 562 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 562 insertions(+) create mode 100644 gcc/gthr-solaris.h (limited to 'gcc/gthr-solaris.h') diff --git a/gcc/gthr-solaris.h b/gcc/gthr-solaris.h new file mode 100644 index 000000000..5aed7ad0d --- /dev/null +++ b/gcc/gthr-solaris.h @@ -0,0 +1,562 @@ +/* Threads compatibility routines for libgcc2 and libobjc. */ +/* Compile this one with gcc. */ +/* Copyright (C) 1997, 1999, 2000, 2004, 2005, 2006, 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 +. */ + +#ifndef GCC_GTHR_SOLARIS_H +#define GCC_GTHR_SOLARIS_H + +/* Solaris threads as found in Solaris 2.[456]. + Actually these are Unix International (UI) threads, but I don't + know if anyone else implements these. */ + +#define __GTHREADS 1 + +#include +#include + +#ifdef __cplusplus +#define UNUSED(x) +#else +#define UNUSED(x) x __attribute__((unused)) +#endif + +typedef thread_key_t __gthread_key_t; +typedef struct { + mutex_t mutex; + int once; +} __gthread_once_t; +typedef mutex_t __gthread_mutex_t; + +typedef struct { + long depth; + thread_t owner; + mutex_t actual; +} __gthread_recursive_mutex_t; + +#define __GTHREAD_ONCE_INIT { DEFAULTMUTEX, 0 } +#define __GTHREAD_MUTEX_INIT DEFAULTMUTEX +#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(thr_keycreate) +__gthrw(thr_getspecific) +__gthrw(thr_setspecific) +__gthrw(thr_create) +__gthrw(thr_self) + +__gthrw(mutex_init) +__gthrw(mutex_destroy) +__gthrw(mutex_lock) +__gthrw(mutex_trylock) +__gthrw(mutex_unlock) + +#ifdef _LIBOBJC +__gthrw(thr_exit) +__gthrw(thr_getprio) +__gthrw(thr_setprio) +__gthrw(thr_yield) + +__gthrw(cond_init) +__gthrw(cond_destroy) +__gthrw(cond_wait) +__gthrw(cond_broadcast) +__gthrw(cond_signal) + +#endif + +#if SUPPORTS_WEAK && GTHREAD_USE_WEAK + +/* This will not actually work in Solaris 2.5, since libc contains + dummy symbols of all thr_* routines. */ + +static inline int +__gthread_active_p (void) +{ + static void *const __gthread_active_ptr + = __extension__ (void *) &__gthrw_(thr_create); + return __gthread_active_ptr != 0; +} + +#else /* not SUPPORTS_WEAK */ + +static inline int +__gthread_active_p (void) +{ + return 1; +} + +#endif /* SUPPORTS_WEAK */ + +#ifdef _LIBOBJC + +/* Key structure for maintaining thread specific storage */ +static thread_key_t _objc_thread_storage; + +/* Thread local storage for a single thread */ +static void *thread_local_storage = NULL; + +/* Backend initialization functions */ + +/* Initialize the threads subsystem. */ +static inline int +__gthread_objc_init_thread_system (void) +{ + /* Initialize the thread storage key. */ + if (__gthread_active_p () + && __gthrw_(thr_keycreate) (&_objc_thread_storage, NULL) == 0) + return 0; + + return -1; +} + +/* Close the threads subsystem. */ +static inline int +__gthread_objc_close_thread_system (void) +{ + if (__gthread_active_p ()) + return 0; + else + return -1; +} + +/* Backend thread functions */ + +/* Create a new thread of execution. */ +static inline objc_thread_t +__gthread_objc_thread_detach (void (*func)(void *), void *arg) +{ + objc_thread_t thread_id; + thread_t new_thread_id = 0; + + if (!__gthread_active_p ()) + return NULL; + + if (__gthrw_(thr_create) (NULL, 0, (void *) func, arg, + THR_DETACHED | THR_NEW_LWP, + &new_thread_id) == 0) + thread_id = *(objc_thread_t *) &new_thread_id; + else + thread_id = NULL; + + return thread_id; +} + +/* Set the current thread's priority. */ +static inline int +__gthread_objc_thread_set_priority (int priority) +{ + int sys_priority = 0; + + if (!__gthread_active_p ()) + return -1; + + switch (priority) + { + case OBJC_THREAD_INTERACTIVE_PRIORITY: + sys_priority = 300; + break; + default: + case OBJC_THREAD_BACKGROUND_PRIORITY: + sys_priority = 200; + break; + case OBJC_THREAD_LOW_PRIORITY: + sys_priority = 1000; + break; + } + + /* Change priority */ + if (__gthrw_(thr_setprio) (__gthrw_(thr_self) (), sys_priority) == 0) + return 0; + else + return -1; +} + +/* Return the current thread's priority. */ +static inline int +__gthread_objc_thread_get_priority (void) +{ + int sys_priority; + + if (!__gthread_active_p ()) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + + if (__gthrw_(thr_getprio) (__gthrw_(thr_self) (), &sys_priority) == 0) + { + if (sys_priority >= 250) + return OBJC_THREAD_INTERACTIVE_PRIORITY; + else if (sys_priority >= 150) + return OBJC_THREAD_BACKGROUND_PRIORITY; + return OBJC_THREAD_LOW_PRIORITY; + } + + /* Couldn't get priority. */ + return -1; +} + +/* Yield our process time to another thread. */ +static inline void +__gthread_objc_thread_yield (void) +{ + if (__gthread_active_p ()) + __gthrw_(thr_yield) (); +} + +/* Terminate the current thread. */ +static inline int +__gthread_objc_thread_exit (void) +{ + if (__gthread_active_p ()) + /* exit the thread */ + __gthrw_(thr_exit) (&__objc_thread_exit_status); + + /* Failed if we reached here */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +static inline objc_thread_t +__gthread_objc_thread_id (void) +{ + if (__gthread_active_p ()) + return (objc_thread_t) __gthrw_(thr_self) (); + else + return (objc_thread_t) 1; +} + +/* Sets the thread's local storage pointer. */ +static inline int +__gthread_objc_thread_set_data (void *value) +{ + if (__gthread_active_p ()) + { + if (__gthrw_(thr_setspecific) (_objc_thread_storage, value) == 0) + return 0; + else + return -1; + } + else + { + thread_local_storage = value; + return 0; + } +} + +/* Returns the thread's local storage pointer. */ +static inline void * +__gthread_objc_thread_get_data (void) +{ + void *value = NULL; + + if (__gthread_active_p ()) + { + if (__gthrw_(thr_getspecific) (_objc_thread_storage, &value) == 0) + return value; + else + return NULL; + } + else + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +static inline int +__gthread_objc_mutex_allocate (objc_mutex_t mutex) +{ + if (__gthread_active_p () + && __gthrw_(mutex_init) ((mutex_t *) (&(mutex->backend)), USYNC_THREAD, 0)) + return -1; + + return 0; +} + +/* Deallocate a mutex. */ +static inline int +__gthread_objc_mutex_deallocate (objc_mutex_t mutex) +{ + if (__gthread_active_p ()) + __gthrw_(mutex_destroy) ((mutex_t *) (&(mutex->backend))); + + return 0; +} + +/* Grab a lock on a mutex. */ +static inline int +__gthread_objc_mutex_lock (objc_mutex_t mutex) +{ + if (__gthread_active_p () + && __gthrw_(mutex_lock) ((mutex_t *) (&(mutex->backend))) != 0) + return -1; + + return 0; +} + +/* Try to grab a lock on a mutex. */ +static inline int +__gthread_objc_mutex_trylock (objc_mutex_t mutex) +{ + if (__gthread_active_p () + && __gthrw_(mutex_trylock) ((mutex_t *) (&(mutex->backend))) != 0) + return -1; + + return 0; +} + +/* Unlock the mutex */ +static inline int +__gthread_objc_mutex_unlock (objc_mutex_t mutex) +{ + if (__gthread_active_p () + && __gthrw_(mutex_unlock) ((mutex_t *) (&(mutex->backend))) != 0) + return -1; + + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +static inline int +__gthread_objc_condition_allocate (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(cond_init) ((cond_t *) (&(condition->backend)), USYNC_THREAD, + NULL); + else + return 0; +} + +/* Deallocate a condition. */ +static inline int +__gthread_objc_condition_deallocate (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(cond_destroy) ((cond_t *) (&(condition->backend))); + else + return 0; +} + +/* Wait on the condition */ +static inline int +__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(cond_wait) ((cond_t *) (&(condition->backend)), + (mutex_t *) (&(mutex->backend))); + else + return 0; +} + +/* Wake up all threads waiting on this condition. */ +static inline int +__gthread_objc_condition_broadcast (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(cond_broadcast) ((cond_t *) (&(condition->backend))); + else + return 0; +} + +/* Wake up one thread waiting on this condition. */ +static inline int +__gthread_objc_condition_signal (objc_condition_t condition) +{ + if (__gthread_active_p ()) + return __gthrw_(cond_signal) ((cond_t *) (&(condition->backend))); + else + return 0; +} + +#else /* _LIBOBJC */ + +static inline int +__gthread_once (__gthread_once_t *__once, void (*__func) (void)) +{ + if (! __gthread_active_p ()) + return -1; + + if (__once == 0 || __func == 0) + return EINVAL; + + if (__once->once == 0) + { + int __status = __gthrw_(mutex_lock) (&__once->mutex); + if (__status != 0) + return __status; + if (__once->once == 0) + { + (*__func) (); + __once->once++; + } + __gthrw_(mutex_unlock) (&__once->mutex); + } + return 0; +} + +static inline int +__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) +{ + /* Solaris 2.5 contains thr_* routines no-op in libc, so test if we actually + got a reasonable key value, and if not, fail. */ + *__key = (__gthread_key_t)-1; + if (__gthrw_(thr_keycreate) (__key, __dtor) != 0 + || *__key == (__gthread_key_t)-1) + return -1; + else + return 0; +} + +static inline int +__gthread_key_delete (__gthread_key_t UNUSED (__key)) +{ + /* Not possible. */ + return -1; +} + +static inline void * +__gthread_getspecific (__gthread_key_t __key) +{ + void *__ptr; + if (__gthrw_(thr_getspecific) (__key, &__ptr) == 0) + return __ptr; + else + return 0; +} + +static inline int +__gthread_setspecific (__gthread_key_t __key, const void *__ptr) +{ + return __gthrw_(thr_setspecific) (__key, (void *) __ptr); +} + +static inline int +__gthread_mutex_destroy (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(mutex_destroy) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_lock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(mutex_lock) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_trylock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(mutex_trylock) (__mutex); + else + return 0; +} + +static inline int +__gthread_mutex_unlock (__gthread_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + return __gthrw_(mutex_unlock) (__mutex); + else + return 0; +} + +static inline int +__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) +{ + __mutex->depth = 0; + __mutex->owner = (thread_t) 0; + return __gthrw_(mutex_init) (&__mutex->actual, USYNC_THREAD, 0); +} + +static inline int +__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) +{ + if (__gthread_active_p ()) + { + thread_t __me = __gthrw_(thr_self) (); + + if (__mutex->owner != __me) + { + __gthrw_(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 ()) + { + thread_t __me = __gthrw_(thr_self) (); + + if (__mutex->owner != __me) + { + if (__gthrw_(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 = (thread_t) 0; + __gthrw_(mutex_unlock) (&__mutex->actual); + } + } + return 0; +} + +#endif /* _LIBOBJC */ + +#undef UNUSED + +#endif /* ! GCC_GTHR_SOLARIS_H */ -- cgit v1.2.3