1 /* Store current floating-point environment and clear 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 23 void __atomic_feholdexcept(fenv_t * envp)24__atomic_feholdexcept (fenv_t *envp) 25 { 26 fenv_union_t u; 27 28 u.l[0] = __sim_exceptions_thread; 29 /* The rounding mode is not changed by arithmetic, so no need to 30 save it. */ 31 u.l[1] = __sim_disabled_exceptions_thread; 32 *envp = u.fenv; 33 34 /* This function postdates the global variables being turned into 35 compat symbols, so no need to set them. */ 36 __sim_exceptions_thread = 0; 37 __sim_disabled_exceptions_thread = FE_ALL_EXCEPT; 38 } 39