| 1 | /* Install given floating-point environment and raise exceptions for |
|---|
| 2 | atomic compound assignment. |
|---|
| 3 | Copyright (C) 2013-2024 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 |
|---|
| 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 | |
|---|
