1 /* Procedure definition for FE_NOMASK_ENV for Linux/ppc64.
2 Copyright (C) 2003-2022 Free Software Foundation, Inc.
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 <https://www.gnu.org/licenses/>. */
18
19 #include <fenv_libc.h>
20 #include <errno.h>
21 #include <sysdep.h>
22 #include <sys/syscall.h>
23 #include <sys/prctl.h>
24 #include <shlib-compat.h>
25
26 const fenv_t *
__fe_nomask_env_priv(void)27 __fe_nomask_env_priv (void)
28 {
29 #if defined PR_SET_FPEXC && defined PR_FP_EXC_PRECISE
30 INTERNAL_SYSCALL_CALL (prctl, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
31 #else
32 __set_errno (ENOSYS);
33 #endif
34 return FE_ENABLED_ENV;
35 }
36 #if SHLIB_COMPAT (libm, GLIBC_2_3, GLIBC_2_19)
37 compat_symbol (libm, __fe_nomask_env_priv, __fe_nomask_env, GLIBC_2_3);
38 #endif
39