1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* Procedure definition for FE_NOMASK_ENV for Linux/ppc64.
Copyright (C) 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <fenv.h>
#include <errno.h>
#include <sysdep.h>
#include <sys/syscall.h>
#include <sys/prctl.h>
#include <kernel-features.h>
const fenv_t *
__fe_nomask_env (void)
{
#if defined PR_SET_FPEXC && defined PR_FP_EXC_PRECISE
int result;
INTERNAL_SYSCALL_DECL (err);
result = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC, PR_FP_EXC_PRECISE);
# ifndef __ASSUME_NEW_PRCTL_SYSCALL
if (INTERNAL_SYSCALL_ERROR_P (result, err)
&& INTERNAL_SYSCALL_ERRNO (result, err) == EINVAL)
__set_errno (ENOSYS);
# endif
#else
__set_errno (ENOSYS);
#endif
return FE_ENABLED_ENV;
}
|
