/* POSIX spinlock implementation. M68k version. Copyright (C) 2000 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; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include "internals.h" int __pthread_spin_lock (pthread_spinlock_t *lock) { unsigned int val; do __asm__ __volatile__ ("tas %1; sne %0" : "=dm" (val), "=m" (*lock) : "m" (*lock) : "cc"); while (val); return 0; } weak_alias (__pthread_spin_lock, pthread_spin_lock) int __pthread_spin_trylock (pthread_spinlock_t *lock) { unsigned int val; __asm__ __volatile__ ("tas %1; sne %0" : "=dm" (val), "=m" (*lock) : "m" (*lock) : "cc"); return val ? EBUSY : 0; } weak_alias (__pthread_spin_trylock, pthread_spin_trylock) int __pthread_spin_unlock (pthread_spinlock_t *lock) { return *lock = 0; } weak_alias (__pthread_spin_unlock, pthread_spin_unlock) int __pthread_spin_init (pthread_spinlock_t *lock, int pshared) { /* We can ignore the `pshared' parameter. Since we are busy-waiting all processes which can access the memory location `lock' points to can use the spinlock. */ return *lock = 0; } weak_alias (__pthread_spin_init, pthread_spin_init) int __pthread_spin_destroy (pthread_spinlock_t *lock) { /* Nothing to do. */ return 0; } weak_alias (__pthread_spin_destroy, pthread_spin_destroy) 8642f0c581cfe7ce2d29c757'>root/libm/w_expl.c
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/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.

   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/>.  */

/* wrapper expl */
#include <math.h>
#include "math_private.h"

#if !defined __NO_LONG_DOUBLE_MATH
long double
expl (long double x)
{
# if __UCLIBC_HAS_FENV__
  long double z = (long double) __ieee754_exp ((double) x);
  if (__builtin_expect (!isfinite (z) || z == 0, 0)
      && isfinite (x) && _LIB_VERSION != _IEEE_)
    return __kernel_standard_l (x, x, 206 + !!signbit (x));

  return z;
# else
  return (long double) __ieee754_exp ((double) x);
# endif /* __UCLIBC_HAS_FENV__ */
}
libm_hidden_def(expl)
#endif /* __NO_LONG_DOUBLE_MATH */