sysdeps/powerpc/nofpu/feupdateenv.c

   1 /* Install given floating-point environment and raise exceptions
   2    (soft-float edition).
   3    Copyright (C) 2002-2014 Free Software Foundation, Inc.
   4    Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
   5    This file is part of the GNU C Library.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library.  If not, see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #include "soft-fp.h"
  22 #include "soft-supp.h"
  23 #include <signal.h>
  24
  25 int
  26 __feupdateenv (const fenv_t *envp)
  27 {
  28   int saved_exceptions;
  29
  30   /* Save currently set exceptions.  */
  31   saved_exceptions = __sim_exceptions_thread;
  32
  33   /* Set environment.  */
  34   fesetenv (envp);
  35
  36   /* Raise old exceptions.  */
  37   __sim_exceptions_thread |= saved_exceptions;
  38   SIM_SET_GLOBAL (__sim_exceptions_global, __sim_exceptions_thread);
  39   if (saved_exceptions & ~__sim_disabled_exceptions_thread)
  40     raise (SIGFPE);
  41
  42   return 0;
  43 }
  44
  45 #include <shlib-compat.h>
  46 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
  47 strong_alias (__feupdateenv, __old_feupdateenv)
  48 compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1);
  49 #endif
  50
  51 libm_hidden_ver (__feupdateenv, feupdateenv)
  52 versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);