sysdeps/powerpc/nofpu/soft-supp.h

   1 /* Internal support stuff for complete soft float.
   2    Copyright (C) 2002-2024 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #if defined __NO_FPRS__ && !defined _SOFT_FLOAT
  20
  21 # include <fenv_libc.h>
  22
  23 #else
  24
  25 # include <fenv.h>
  26
  27 typedef union
  28 {
  29   fenv_t fenv;
  30   unsigned int l[2];
  31 } fenv_union_t;
  32
  33 #endif
  34
  35 extern __thread int __sim_exceptions_thread attribute_tls_model_ie;
  36 libc_hidden_tls_proto (__sim_exceptions_thread, tls_model ("initial-exec"));
  37 extern __thread int __sim_disabled_exceptions_thread attribute_tls_model_ie;
  38 libc_hidden_tls_proto (__sim_disabled_exceptions_thread,
  39                        tls_model ("initial-exec"));
  40 extern __thread int __sim_round_mode_thread attribute_tls_model_ie;
  41 libc_hidden_tls_proto (__sim_round_mode_thread, tls_model ("initial-exec"));
  42
  43 /* These variables were formerly global, so there are compat symbols
  44    for global versions as well.  */
  45
  46 #include <shlib-compat.h>
  47 #define SIM_GLOBAL_COMPAT SHLIB_COMPAT (libc, GLIBC_2_3_2, GLIBC_2_19)
  48 #if SIM_GLOBAL_COMPAT
  49 extern int __sim_exceptions_global;
  50 libc_hidden_proto (__sim_exceptions_global);
  51 extern int __sim_disabled_exceptions_global ;
  52 libc_hidden_proto (__sim_disabled_exceptions_global);
  53 extern int __sim_round_mode_global;
  54 libc_hidden_proto (__sim_round_mode_global);
  55 # define SIM_COMPAT_SYMBOL(GLOBAL_NAME, NAME) \
  56   compat_symbol (libc, GLOBAL_NAME, NAME, GLIBC_2_3_2)
  57 # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((GLOBAL_VAR) = (THREAD_VAR))
  58 #else
  59 # define SIM_SET_GLOBAL(GLOBAL_VAR, THREAD_VAR) ((void) 0)
  60 #endif
  61
  62 extern void __simulate_exceptions (int x) attribute_hidden;