Hi,
Index: lib/libc/sys/utrace.2 =================================================================== RCS file: lib/libc/sys/utrace.2 diff -N lib/libc/sys/utrace.2 --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ lib/libc/sys/utrace.2 18 Jul 2011 09:28:15 -0000 @@ -0,0 +1,93 @@ +.\" $OpenBSD: utrace.2,v 1.13 2008/05/02 18:38:32 martin Exp $ +.\" $NetBSD: utrace.2,v 1.13 2008/05/02 18:38:32 martin 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.mcga...@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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS +.\" ``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 FOUNDATION OR CONTRIBUTORS +.\" 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. +.\" +.Dd Mdocdate$
Should be $Mdocdate$.
+.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/uio.h +.In sys/ktrace.h +.Ft int +.Fn utrace "const char *label" "void *addr" "size_t len" +.Sh DESCRIPTION +Adds a record to the process trace with information supplied by user. +The record is identified by +.Fa label +and 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.
Just use `.Rv -std'.
+.Sh ERRORS +.Bl -tag -width Er +.It Bq Er ENOSYS +Currently running kernel was compiled without +.Xr ktrace 2 +support (option KTRACE). +.It Bq Er EINVAL +The length of the +.Fa label +string was longer than +.Dv KTR_USER_MAXIDLEN-1
Use KTR_USER_MADIDLEN\-1 or groff/mandoc may break at the hyphen.
+or the +specified data length +.Fa len +was bigger than +.Dv KTR_USER_MAXLEN . +.El +.Sh SEE ALSO +.Xr kdump 1 , +.Xr ktrace 1 , +.Xr ktrace 2 , +.Xr options 4 +.Sh HISTORY +The +.Fn utrace +system call first appeared in +.Fx 2.2 . +It was added to +.Ox +in +.Ox 5.0 . +The +.Fa label +argument is an extension.
Take care, Kristaps
