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glibc/sysdeps/generic/malloc-machine.h
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/* Basic platform-independent macro definitions for mutexes, | |
thread-specific data and parameters for malloc. | |
Copyright (C) 2003-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#ifndef _GENERIC_MALLOC_MACHINE_H | |
#define _GENERIC_MALLOC_MACHINE_H | |
#include <atomic.h> | |
#ifndef atomic_full_barrier | |
# define atomic_full_barrier() __asm ("" ::: "memory") | |
#endif | |
#ifndef atomic_read_barrier | |
# define atomic_read_barrier() atomic_full_barrier () | |
#endif | |
#ifndef atomic_write_barrier | |
# define atomic_write_barrier() atomic_full_barrier () | |
#endif | |
#ifndef DEFAULT_TOP_PAD | |
# define DEFAULT_TOP_PAD 131072 | |
#endif | |
#endif /* !defined(_GENERIC_MALLOC_MACHINE_H) */ |