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/* Copyright (C) 2003-2017 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/>. */
#include <sysdep.h>
#include <tls.h>
#include <nptl/pthreadP.h>
#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
# if IS_IN (libpthread)
# define __local_multiple_threads __pthread_multiple_threads
# elif IS_IN (libc)
# define __local_multiple_threads __libc_multiple_threads
# endif
# if IS_IN (libpthread) || IS_IN (libc)
extern int __local_multiple_threads attribute_hidden;
# define SINGLE_THREAD_P __glibc_likely (__local_multiple_threads == 0)
# else
/* There is no __local_multiple_threads for librt, so use the TCB. */
# define SINGLE_THREAD_P \
__glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
# endif
#else
/* For rtld, et cetera. */
# define SINGLE_THREAD_P 1
#endif
# define RTLD_SINGLE_THREAD_P \
__glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
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