| 1 | /* Store current floating-point environment and clear exceptions for |
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| 2 | atomic compound assignment. |
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| 3 | Copyright (C) 2013-2024 Free Software Foundation, Inc. |
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| 4 | This file is part of the GNU C Library. |
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| 5 | |
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| 6 | The GNU C Library is free software; you can redistribute it and/or |
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| 7 | modify it under the terms of the GNU Lesser General Public |
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| 8 | License as published by the Free Software Foundation; either |
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| 9 | version 2.1 of the License, or (at your option) any later version. |
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| 10 | |
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| 11 | The GNU C Library is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | Lesser General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU Lesser General Public |
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| 17 | License along with the GNU C Library. If not, see |
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| 18 | <https://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #include "soft-fp.h" |
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| 21 | #include "soft-supp.h" |
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| 22 | |
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| 23 | void |
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| 24 | __atomic_feholdexcept (fenv_t *envp) |
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| 25 | { |
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| 26 | fenv_union_t u; |
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| 27 | |
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| 28 | u.l[0] = __sim_exceptions_thread; |
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| 29 | /* The rounding mode is not changed by arithmetic, so no need to |
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| 30 | save it. */ |
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| 31 | u.l[1] = __sim_disabled_exceptions_thread; |
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| 32 | *envp = u.fenv; |
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| 33 | |
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| 34 | /* This function postdates the global variables being turned into |
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| 35 | compat symbols, so no need to set them. */ |
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| 36 | __sim_exceptions_thread = 0; |
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| 37 | __sim_disabled_exceptions_thread = FE_ALL_EXCEPT; |
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| 38 | } |
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| 39 | |
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