1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 
  26 /*
  27  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30 
  31 #pragma weak __fegetprec = fegetprec
  32 #pragma weak __fesetprec = fesetprec
  33 
  34 #include <fenv.h>
  35 #include <ucontext.h>
  36 #include <thread.h>
  37 #include "fex_handler.h"
  38 
  39 int
  40 fegetprec(void)
  41 {
  42         unsigned long fsr;
  43 
  44         __fenv_getfsr(&fsr);
  45         return (__fenv_get_rp(fsr));
  46 }
  47 
  48 int
  49 fesetprec(int r)
  50 {
  51         unsigned long fsr;
  52 
  53         if (r != FE_FLTPREC && r != FE_DBLPREC && r != FE_LDBLPREC)
  54                 return (0);
  55 
  56         __fenv_getfsr(&fsr);
  57         __fenv_set_rp(fsr, r);
  58         __fenv_setfsr(&fsr);
  59         return (1);
  60 }