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>
5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
Reviewed by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Gordon Ross <gwr@nexenta.com>
Approved by: Gordon Ross <gwr@nexenta.com>

          --- old/usr/src/lib/libm/common/Q/asinhl.c
          +++ new/usr/src/lib/libm/common/Q/asinhl.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      -#if defined(ELFOBJ)
  31      -#pragma weak asinhl = __asinhl
  32      -#endif
       30 +#pragma weak __asinhl = asinhl
  33   31  
  34   32  #include "libm.h"
  35   33  
  36   34  static const long double
  37   35          ln2     = 6.931471805599453094172321214581765680755e-0001L,
  38   36          one     = 1.0L,
  39   37          big     = 1.0e+20L,
  40   38          tiny    = 1.0e-20L;
  41   39  
  42   40  long double

  43   41  asinhl(long double x) {
  44   42          long double t, w;
  45   43          volatile long double dummy;
  46   44  
  47   45          w = fabsl(x);
  48   46          if (isnanl(x))
  49   47                  return (x + x); /* x is NaN */
  50   48          if (w < tiny) {
  51   49  #ifndef lint
  52   50                  dummy = x + big;        /* inexact if x != 0 */
  53   51  #endif
  54   52                  return (x);     /* tiny x */
  55   53          } else if (w < big) {
  56   54                  t = one / w;
  57   55                  return (copysignl(log1pl(w + w / (t + sqrtl(one + t * t))), x));
  58   56          } else
  59   57                  return (copysignl(logl(w) + ln2, x));
  60   58  }

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