1 /* Install given floating-point environment and raise exceptions for 2 atomic compound assignment. 3 Copyright (C) 2013-2021 Free Software Foundation, Inc. 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 #include "soft-fp.h" 21 #include "soft-supp.h" 22 #include <signal.h> 23 24 void __atomic_feupdateenv(const fenv_t * envp)25__atomic_feupdateenv (const fenv_t *envp) 26 { 27 fenv_union_t u; 28 int saved_exceptions = __sim_exceptions_thread; 29 30 /* This function postdates the global variables being turned into 31 compat symbols, so no need to set them. */ 32 u.fenv = *envp; 33 __sim_exceptions_thread |= u.l[0]; 34 __sim_disabled_exceptions_thread = u.l[1]; 35 if (saved_exceptions & ~__sim_disabled_exceptions_thread) 36 raise (SIGFPE); 37 } 38