ports/sysdeps/arm/fegetenv.c

   1 /* Store current floating-point environment.
   2    Copyright (C) 1997,98,99,2000,01,05,10 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <fenv.h>
  20 #include <fpu_control.h>
  21
  22 #include <unistd.h>
  23 #include <ldsodefs.h>
  24 #include <dl-procinfo.h>
  25 #include <sysdep.h>
  26
  27 int
  28 __fegetenv (fenv_t *envp)
  29 {
  30   if (GLRO (dl_hwcap) & HWCAP_ARM_VFP)
  31     {
  32       unsigned long int temp;
  33       _FPU_GETCW (temp);
  34       envp->__cw = temp;
  35
  36       /* Success.  */
  37       return 0;
  38     }
  39
  40   /* Unsupported, so fail.  */
  41   return 1;
  42 }
  43
  44 #include <shlib-compat.h>
  45 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
  46 strong_alias (__fegetenv, __old_fegetenv)
  47 compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
  48 #endif
  49
  50 libm_hidden_ver (__fegetenv, fegetenv)
  51 versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);