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/i386/src/asinl.s
          +++ new/usr/src/lib/libm/i386/src/asinl.s

   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   * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.

  23   23   */
  24   24  /*
  25   25   * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  26   26   * Use is subject to license terms.
  27   27   */
  28   28  
  29   29          .file   "asinl.s"
  30   30  
  31   31  #include "libm.h"
  32   32  LIBM_ANSI_PRAGMA_WEAK(asinl,function)
  33      -#include "libm_synonyms.h"
  34      -
  35      -#undef fabs
  36   33  
  37   34          ENTRY(asinl)
  38   35          fldt    4(%esp)                 / push x
  39   36          fld1                            / push 1
  40   37          fld     %st(1)                  / x , 1 , x
  41   38          fabs                            / |x| , 1 , x
  42   39          fucomp
  43   40          fstsw   %ax
  44   41          sahf
  45   42          ja      9f

  46   43          fadd    %st(1),%st              / 1+x,x
  47   44          fld1                            / 1,1+x,x
  48   45          fsub    %st(2),%st              / 1-x,1+x,x
  49   46          fmulp   %st,%st(1)              / (1-x)*(1+x),x
  50   47          fsqrt                           / sqrt((1-x)*(1+x)),x
  51   48          fpatan                          / atan(x/sqrt((1-x)*(1+x)))
  52   49          ret
  53   50  9:
  54   51          / |x| > 1
  55   52          fstp    %st(0)                  / x
  56   53          fsub    %st,%st(0)              / +/-0 or NaN+invalid
  57   54          fdiv    %st,%st(0)              / NaN+invalid or NaN
  58   55          ret
  59   56          .align  4
  60   57          SET_SIZE(asinl)

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