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-single.h | 292 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 gcc/gthr-single.h (limited to 'gcc/gthr-single.h') diff --git a/gcc/gthr-single.h b/gcc/gthr-single.h new file mode 100644 index 000000000..357528ad1 --- /dev/null +++ b/gcc/gthr-single.h @@ -0,0 +1,292 @@ +/* Threads compatibility routines for libgcc2 and libobjc. */ +/* Compile this one with gcc. */ +/* Copyright (C) 1997, 1999, 2000, 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 +. */ + +#ifndef GCC_GTHR_SINGLE_H +#define GCC_GTHR_SINGLE_H + +/* Just provide compatibility for mutex handling. */ + +typedef int __gthread_key_t; +typedef int __gthread_once_t; +typedef int __gthread_mutex_t; +typedef int __gthread_recursive_mutex_t; + +#define __GTHREAD_ONCE_INIT 0 +#define __GTHREAD_MUTEX_INIT 0 +#define __GTHREAD_RECURSIVE_MUTEX_INIT 0 + +#define UNUSED __attribute__((unused)) + +#ifdef _LIBOBJC + +/* 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) +{ + /* No thread support available */ + return -1; +} + +/* Close the threads subsystem. */ +static inline int +__gthread_objc_close_thread_system (void) +{ + /* No thread support available */ + 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 UNUSED) +{ + /* No thread support available */ + return NULL; +} + +/* Set the current thread's priority. */ +static inline int +__gthread_objc_thread_set_priority (int priority UNUSED) +{ + /* No thread support available */ + return -1; +} + +/* Return the current thread's priority. */ +static inline int +__gthread_objc_thread_get_priority (void) +{ + return OBJC_THREAD_INTERACTIVE_PRIORITY; +} + +/* Yield our process time to another thread. */ +static inline void +__gthread_objc_thread_yield (void) +{ + return; +} + +/* Terminate the current thread. */ +static inline int +__gthread_objc_thread_exit (void) +{ + /* No thread support available */ + /* Should we really exit the program */ + /* exit (&__objc_thread_exit_status); */ + return -1; +} + +/* Returns an integer value which uniquely describes a thread. */ +static inline objc_thread_t +__gthread_objc_thread_id (void) +{ + /* No thread support, use 1. */ + return (objc_thread_t) 1; +} + +/* Sets the thread's local storage pointer. */ +static inline int +__gthread_objc_thread_set_data (void *value) +{ + thread_local_storage = value; + return 0; +} + +/* Returns the thread's local storage pointer. */ +static inline void * +__gthread_objc_thread_get_data (void) +{ + return thread_local_storage; +} + +/* Backend mutex functions */ + +/* Allocate a mutex. */ +static inline int +__gthread_objc_mutex_allocate (objc_mutex_t mutex UNUSED) +{ + return 0; +} + +/* Deallocate a mutex. */ +static inline int +__gthread_objc_mutex_deallocate (objc_mutex_t mutex UNUSED) +{ + return 0; +} + +/* Grab a lock on a mutex. */ +static inline int +__gthread_objc_mutex_lock (objc_mutex_t mutex UNUSED) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Try to grab a lock on a mutex. */ +static inline int +__gthread_objc_mutex_trylock (objc_mutex_t mutex UNUSED) +{ + /* There can only be one thread, so we always get the lock */ + return 0; +} + +/* Unlock the mutex */ +static inline int +__gthread_objc_mutex_unlock (objc_mutex_t mutex UNUSED) +{ + return 0; +} + +/* Backend condition mutex functions */ + +/* Allocate a condition. */ +static inline int +__gthread_objc_condition_allocate (objc_condition_t condition UNUSED) +{ + return 0; +} + +/* Deallocate a condition. */ +static inline int +__gthread_objc_condition_deallocate (objc_condition_t condition UNUSED) +{ + return 0; +} + +/* Wait on the condition */ +static inline int +__gthread_objc_condition_wait (objc_condition_t condition UNUSED, + objc_mutex_t mutex UNUSED) +{ + return 0; +} + +/* Wake up all threads waiting on this condition. */ +static inline int +__gthread_objc_condition_broadcast (objc_condition_t condition UNUSED) +{ + return 0; +} + +/* Wake up one thread waiting on this condition. */ +static inline int +__gthread_objc_condition_signal (objc_condition_t condition UNUSED) +{ + return 0; +} + +#else /* _LIBOBJC */ + +static inline int +__gthread_active_p (void) +{ + return 0; +} + +static inline int +__gthread_once (__gthread_once_t *__once UNUSED, void (*__func) (void) UNUSED) +{ + return 0; +} + +static inline int UNUSED +__gthread_key_create (__gthread_key_t *__key UNUSED, void (*__func) (void *) UNUSED) +{ + return 0; +} + +static int UNUSED +__gthread_key_delete (__gthread_key_t __key UNUSED) +{ + return 0; +} + +static inline void * +__gthread_getspecific (__gthread_key_t __key UNUSED) +{ + return 0; +} + +static inline int +__gthread_setspecific (__gthread_key_t __key UNUSED, const void *__v UNUSED) +{ + return 0; +} + +static inline int +__gthread_mutex_destroy (__gthread_mutex_t *__mutex UNUSED) +{ + return 0; +} + +static inline int +__gthread_mutex_lock (__gthread_mutex_t *__mutex UNUSED) +{ + return 0; +} + +static inline int +__gthread_mutex_trylock (__gthread_mutex_t *__mutex UNUSED) +{ + return 0; +} + +static inline int +__gthread_mutex_unlock (__gthread_mutex_t *__mutex UNUSED) +{ + return 0; +} + +static inline int +__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) +{ + return __gthread_mutex_lock (__mutex); +} + +static inline int +__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) +{ + return __gthread_mutex_trylock (__mutex); +} + +static inline int +__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) +{ + return __gthread_mutex_unlock (__mutex); +} + +#endif /* _LIBOBJC */ + +#undef UNUSED + +#endif /* ! GCC_GTHR_SINGLE_H */ -- cgit v1.2.3