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
44
45
46
47
48
49
|
.\" Copyright, the authors of the Linux man-pages project
.\"
.\" SPDX-License-Identifier: Linux-man-pages-copyleft
.\"
.TH PR_SET_FPEMU 2const 2025-05-17 "Linux man-pages (unreleased)"
.SH NAME
PR_SET_FPEMU
\-
set floating-point emulation control bits
.SH LIBRARY
Standard C library
.RI ( libc ,\~ \-lc )
.SH SYNOPSIS
.nf
.BR "#include <linux/prctl.h>" " /* Definition of " PR_* " constants */"
.B #include <sys/prctl.h>
.P
.BI "int prctl(PR_SET_FPEMU, long " fpemu );
.fi
.SH DESCRIPTION
Set floating-point emulation control bits to
.IR fpemu .
Pass
.B PR_FPEMU_NOPRINT
to silently emulate floating-point operation accesses, or
.B PR_FPEMU_SIGFPE
to not emulate floating-point operations and send
.B SIGFPE
instead.
.SH RETURN VALUE
On success,
0 is returned.
On error, \-1 is returned, and
.I errno
is set to indicate the error.
.SH ERRORS
.TP
.B EINVAL
.I fpemu
is not a valid value.
.SH STANDARDS
Linux.
ia64 only.
.SH HISTORY
Linux 2.4.18, 2.5.9.
(ia64)
.SH SEE ALSO
.BR prctl (2),
.BR PR_GET_FPEMU (2const)
|
