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6c9b0f68 | 1 | /* Determine floating-point rounding mode within libc. ARM version. |
b168057a | 2 | Copyright (C) 2012-2015 Free Software Foundation, Inc. |
6c9b0f68 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 | #ifndef _ARM_GET_ROUNDING_MODE_H | |
20 | #define _ARM_GET_ROUNDING_MODE_H 1 | |
21 | ||
22 | #include <arm-features.h> | |
23 | #include <fenv.h> | |
24 | #include <fpu_control.h> | |
25 | ||
26 | /* Return the floating-point rounding mode. */ | |
27 | ||
28 | static inline int | |
29 | get_rounding_mode (void) | |
30 | { | |
1a2f40e5 W |
31 | fpu_control_t fpscr; |
32 | ||
33 | /* FE_TONEAREST is the only supported rounding mode | |
34 | if a VFP unit isn't present. */ | |
35 | if (!ARM_HAVE_VFP) | |
6c9b0f68 | 36 | return FE_TONEAREST; |
1a2f40e5 W |
37 | |
38 | _FPU_GETCW (fpscr); | |
b5570d92 | 39 | return fpscr & _FPU_MASK_RM; |
6c9b0f68 JM |
40 | } |
41 | ||
42 | #endif /* get-rounding-mode.h */ |