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528be9fe | 1 | /* Install given floating-point environment. |
d4697bc9 | 2 | Copyright (C) 2000-2014 Free Software Foundation, Inc. |
528be9fe AJ |
3 | This file is part of the GNU C Library. |
4 | Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
528be9fe AJ |
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 | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
528be9fe | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
528be9fe AJ |
19 | |
20 | #include <fenv_libc.h> | |
21 | #include <fpu_control.h> | |
22 | #include <stddef.h> | |
23 | #include <asm/ptrace.h> | |
24 | #include <sys/ptrace.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | int | |
28 | fesetenv (const fenv_t *envp) | |
29 | { | |
30 | fenv_t env; | |
31 | ||
32 | if (envp == FE_DFL_ENV) | |
33 | { | |
99252c8c JM |
34 | env.__fpc = _FPU_DEFAULT; |
35 | env.__ieee_instruction_pointer = 0; | |
528be9fe AJ |
36 | } |
37 | else if (envp == FE_NOMASK_ENV) | |
38 | { | |
99252c8c JM |
39 | env.__fpc = FPC_EXCEPTION_MASK; |
40 | env.__ieee_instruction_pointer = 0; | |
528be9fe AJ |
41 | } |
42 | else | |
43 | env = (*envp); | |
44 | ||
99252c8c | 45 | _FPU_SETCW (env.__fpc); |
528be9fe AJ |
46 | |
47 | /* Success. */ | |
48 | return 0; | |
49 | } | |
76f2646f | 50 | libm_hidden_def (fesetenv) |