1 /* Internal support stuff for complete soft float. 2 Copyright (C) 2002-2022 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; 63