5261 libm should stop using synonyms.h
5298 fabs is 0-sized, confuses dis(1) and others
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Approved by: Gordon Ross <gwr@nexenta.com>

          --- old/usr/src/lib/libm/common/m9x/fex_handler.c
          +++ new/usr/src/lib/libm/common/m9x/fex_handler.c

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END

  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24   24   */
  25   25  /*
  26   26   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27   27   * Use is subject to license terms.
  28   28   */
  29   29  
  30      -#pragma weak fex_get_handling = __fex_get_handling
  31      -#pragma weak fex_set_handling = __fex_set_handling
  32      -#pragma weak fex_getexcepthandler = __fex_getexcepthandler
  33      -#pragma weak fex_setexcepthandler = __fex_setexcepthandler
       30 +#pragma weak __fex_get_handling = fex_get_handling
       31 +#pragma weak __fex_set_handling = fex_set_handling
       32 +#pragma weak __fex_getexcepthandler = fex_getexcepthandler
       33 +#pragma weak __fex_setexcepthandler = fex_setexcepthandler
  34   34  
  35      -#include "fenv_synonyms.h"
  36   35  #include <fenv.h>
  37   36  #include <ucontext.h>
  38   37  #include <thread.h>
  39   38  #include "fex_handler.h"
  40   39  
  41   40  int fex_get_handling(int e)
  42   41  {
  43   42          struct fex_handler_data *thr_handlers;
  44   43          int                                             i;
  45   44  

  46   45          thr_handlers = __fex_get_thr_handlers();
  47   46          for (i = 0; i < FEX_NUM_EXC; i++)
  48   47                  if (e & (1 << i))
  49   48                          return thr_handlers[i].__mode;
  50   49          return FEX_NOHANDLER;
  51   50  }
  52   51  
  53   52  int fex_set_handling(int e, int mode, void (*handler)())
  54   53  {
  55   54          struct fex_handler_data *thr_handlers;
  56   55          int                                             i;
  57   56  
  58   57          if (e & ~((1 << FEX_NUM_EXC) - 1))
  59   58                  return 0;
  60   59          thr_handlers = __fex_get_thr_handlers();
  61   60          for (i = 0; i < FEX_NUM_EXC; i++) {
  62   61                  if (e & (1 << i)) {
  63   62                          thr_handlers[i].__mode = mode;
  64   63                          thr_handlers[i].__handler = handler;
  65   64                  }
  66   65          }
  67   66          __fex_update_te();
  68   67          return 1;
  69   68  }
  70   69  
  71   70  void fex_getexcepthandler(fex_handler_t *buf, int e)
  72   71  {
  73   72          struct fex_handler_data *thr_handlers;
  74   73          int                                             i;
  75   74  
  76   75          thr_handlers = __fex_get_thr_handlers();
  77   76          for (i = 0; i < FEX_NUM_EXC; i++)
  78   77                  if (e & (1 << i))
  79   78                          (*buf)[i] = thr_handlers[i];
  80   79  }
  81   80  
  82   81  void fex_setexcepthandler(const fex_handler_t *buf, int e)
  83   82  {
  84   83          struct fex_handler_data *thr_handlers;
  85   84          int                                             i;
  86   85  
  87   86          thr_handlers = __fex_get_thr_handlers();
  88   87          for (i = 0; i < FEX_NUM_EXC; i++)
  89   88                  if (e & (1 << i))
  90   89                          thr_handlers[i] = (*buf)[i];
  91   90          __fex_update_te();
  92   91  }

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