sysdeps/powerpc/powerpc32/e500/nofpu/fenv_const.c

   1 /* Constant floating-point environments for e500.
   2    Copyright (C) 2004-2016 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 /* The use of "unsigned long long" as the type to define the
  20    bit-pattern explicitly, rather than the type "double" used in
  21    <bits/fenv.h>, means that we cannot include <fenv_libc.h> here to
  22    get the enum constants for the SPEFSCR bits to enable
  23    exceptions.  */
  24
  25 #include <sys/prctl.h>
  26
  27 /* If the default argument is used we use this value.  */
  28 const unsigned long long __fe_dfl_env __attribute__ ((aligned (8))) =
  29   0x3cULL;
  30
  31 /* The same representation is used for femode_t.  */
  32 extern const unsigned long long __fe_dfl_mode
  33   __attribute__ ((aligned (8), alias ("__fe_dfl_env")));
  34
  35 /* Floating-point environment where none of the exceptions are masked.  */
  36 const unsigned long long __fe_enabled_env __attribute__ ((aligned (8))) =
  37   (((unsigned long long) (PR_FP_EXC_DIV
  38                           | PR_FP_EXC_OVF
  39                           | PR_FP_EXC_UND
  40                           | PR_FP_EXC_RES
  41                           | PR_FP_EXC_INV)) << 32) | 0x7cULL;
  42
  43 /* Non-IEEE mode.  */
  44 const unsigned long long __fe_nonieee_env __attribute__ ((aligned (8))) =
  45   0x0ULL;