sysdeps/powerpc/nofpu/soft-supp.h

   1 /* Internal support stuff for complete soft float.
   2    Copyright (C) 2002-2019 Free Software Foundation, Inc.
   3    Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library.  If not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #if defined __NO_FPRS__ && !defined _SOFT_FLOAT
  21
  22 # include <fenv_libc.h>
  23
  24 #else
  25
  26 # include <fenv.h>
  27
  28 typedef union
  29 {
  30   fenv_t fenv;
  31   unsigned int l[2];
  32 } fenv_union_t;
  33
  34 #endif
  35
  36 extern __thread int __sim_exceptions_thread attribute_tls_model_ie;
  37 libc_hidden_tls_proto (__sim_exceptions_thread, tls_model ("initial-exec"));
  38 extern __thread int __sim_disabled_exceptions_thread attribute_tls_model_ie;
  39 libc_hidden_tls_proto (__sim_disabled_exceptions_thread,
  40                        tls_model ("initial-exec"));
  41 extern __thread int __sim_round_mode_thread attribute_tls_model_ie;
  42 libc_hidden_tls_proto (__sim_round_mode_thread, tls_model ("initial-exec"));
  43
  44 /* These variables were formerly global, so there are compat symbols
  45    for global versions as well.  */
  46
  47 #include <shlib-compat.h>
  48 #define SIM_GLOBAL_COMPAT SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_19)
  49 #if SIM_GLOBAL_COMPAT
  50 extern int __sim_exceptions_global;
  51 libc_hidden_proto (__sim_exceptions_global);
  52 extern int __sim_disabled_exceptions_global ;
  53 libc_hidden_proto (__sim_disabled_exceptions_global);
  54 extern int __sim_round_mode_global;
  55 libc_hidden_proto (__sim_round_mode_global);
  56 # define SIM_COMPAT_SYMBOL(GLOBAL_NAME, NAME) \
  57   compat_symbol (libc, GLOBAL_NAME, NAME, GLIBC_2_3_2)
  58 # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((GLOBAL_VAR) = (THREAD_VAR))
  59 #else
  60 # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((void) 0)
  61 #endif
  62
  63 extern void __simulate_exceptions (int x) attribute_hidden;