mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-20 11:11:24 +00:00
89 lines
3.0 KiB
Groff
89 lines
3.0 KiB
Groff
.\" $NetBSD: utrace.2,v 1.11 2003/04/24 12:17:49 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
.\" by Gregory McGarry <g.mcgarry@ieee.org>.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the NetBSD
|
|
.\" Foundation, Inc. and its contributors.
|
|
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
.\" contributors may be used to endorse or promote products derived
|
|
.\" from this software without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd December 28, 2000
|
|
.Dt UTRACE 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm utrace
|
|
.Nd insert user record in ktrace log
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In sys/types.h
|
|
.In sys/param.h
|
|
.In sys/time.h
|
|
.In sys/uio.h
|
|
.In sys/ktrace.h
|
|
.Ft int
|
|
.Fn utrace "const void *addr" "size_t len"
|
|
.Sh DESCRIPTION
|
|
Adds a record to the process trace with information supplied by user.
|
|
The record contains
|
|
.Fa len
|
|
bytes from memory pointed to by
|
|
.Fa addr .
|
|
This call only has an effect if the calling process is being traced.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion, a value of 0 is returned.
|
|
Otherwise, a value of -1 is returned and
|
|
.Va errno
|
|
is set to indicate the error.
|
|
.Sh ERRORS
|
|
.Bl -tag -width Er
|
|
.It Bq Er EINVAL
|
|
Specified data length
|
|
.Fa len
|
|
was bigger than
|
|
.Dv KTR_USER_MAXLEN .
|
|
.It Bq Er ENOMEM
|
|
Insufficient memory to honor the request.
|
|
.It Bq Er ENOSYS
|
|
Currently running kernel was compiled without
|
|
.Xr ktrace 2
|
|
support (option KTRACE).
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr kdump 1 ,
|
|
.Xr ktrace 1 ,
|
|
.Xr ktrace 2
|
|
.Sh HISTORY
|
|
The
|
|
.Fn utrace
|
|
system call first appeared in
|
|
.Fx 2.2 .
|