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GCC will insert various calls to pthread functions when compiling C++ code with static initializers, even when the user doesn't link their program against libpthread explicitly. This is used to make static initializers thread-safe, e.g. when building a library that does not itself use thread functionality and thus does not link against libpthread - but is intended to be used with other code that does use libpthread explicitly. This makes these symbols available in libc.
63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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void __pthread_fork_prepare(void);
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void __pthread_fork_child(void);
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void __pthread_fork_parent(void);
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void __pthread_fork_atfork_register_prepare(void (*)(void));
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void __pthread_fork_atfork_register_parent(void (*)(void));
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void __pthread_fork_atfork_register_child(void (*)(void));
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int __pthread_mutex_lock(pthread_mutex_t*);
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int __pthread_mutex_unlock(pthread_mutex_t*);
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int __pthread_mutex_init(pthread_mutex_t*, const pthread_mutexattr_t*);
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typedef void (*KeyDestructor)(void*);
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int __pthread_key_create(pthread_key_t*, KeyDestructor);
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int __pthread_key_delete(pthread_key_t);
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void* __pthread_getspecific(pthread_key_t);
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int __pthread_setspecific(pthread_key_t, const void*);
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int __pthread_self();
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void __pthread_key_destroy_for_current_thread();
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#define __PTHREAD_MUTEX_NORMAL 0
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#define __PTHREAD_MUTEX_RECURSIVE 1
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#define __PTHREAD_MUTEX_INITIALIZER \
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{ \
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0, 0, 0, __PTHREAD_MUTEX_NORMAL \
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}
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__END_DECLS
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