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3c8325fb | 1 | /* Store current floating-point environment. e500 version. |
d4697bc9 | 2 | Copyright (C) 2004-2014 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 <sysdep.h> | |
21 | #include <sys/prctl.h> | |
22 | ||
23 | int | |
24 | __fegetenv (fenv_t *envp) | |
25 | { | |
26 | fenv_union_t u; | |
27 | INTERNAL_SYSCALL_DECL (err); | |
28 | int r; | |
29 | ||
30 | r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &u.l[0]); | |
31 | if (INTERNAL_SYSCALL_ERROR_P (r, err)) | |
32 | return -1; | |
33 | ||
34 | u.l[1] = fegetenv_register (); | |
35 | *envp = u.fenv; | |
36 | ||
37 | /* Success. */ | |
38 | return 0; | |
39 | } | |
40 | ||
41 | #include <shlib-compat.h> | |
42 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
43 | strong_alias (__fegetenv, __old_fegetenv) | |
44 | compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1); | |
45 | #endif | |
46 | ||
47 | versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2); |