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3c8325fb | 1 | /* Convert floating-point exceptions from prctl form. |
688903eb | 2 | Copyright (C) 2013-2018 Free Software Foundation, Inc. |
3c8325fb JM |
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 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <fenv_libc.h> | |
20 | #include <sys/prctl.h> | |
21 | ||
22 | /* Convert EXCEPTS from prctl bits to FE_* form, returning the | |
23 | converted value. */ | |
24 | ||
25 | int | |
26 | __fexcepts_from_prctl (int excepts) | |
27 | { | |
28 | int result = 0; | |
29 | if (excepts & PR_FP_EXC_OVF) | |
30 | result |= FE_OVERFLOW; | |
31 | if (excepts & PR_FP_EXC_UND) | |
32 | result |= FE_UNDERFLOW; | |
33 | if (excepts & PR_FP_EXC_INV) | |
34 | result |= FE_INVALID; | |
35 | if (excepts & PR_FP_EXC_DIV) | |
36 | result |= FE_DIVBYZERO; | |
37 | if (excepts & PR_FP_EXC_RES) | |
38 | result |= FE_INEXACT; | |
39 | return result; | |
40 | } | |
41 | ||
42 | libm_hidden_def (__fexcepts_from_prctl) |