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+.\" $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: src/lib/libc/sys/utrace.2,v 1.3 2004/07/03 23:14:34 ru Exp %
+.\"
+.\" $FreeBSD$
+.Dd December 28, 2000
+.Dt UTRACE 2
+.Os
+.Sh 名称
+.Nm utrace
+.Nd ktrace のログの中へのユーザレコードの挿入
+.Sh ライブラリ
+.Lb libc
+.Sh 書式
+.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 解説
+プロセストレースに、ユーザによって供給された情報のレコードを追加します。
+このレコードは
+.Fa addr
+によって指されているメモリから
+.Fa len
+バイトを格納しています。
+この呼び出しは、
+呼び出したプロセスがトレースされている場合にのみ効果があります。
+.Sh 戻り値
+.Rv -std
+.Sh エラー
+.Bl -tag -width Er
+.It Bq Er EINVAL
+指定されたデータの長さ
+.Fa len
+が
+.Dv KTR_USER_MAXLEN
+よりも大きいです。
+.It Bq Er ENOMEM
+要求を実現するためにはメモリが不足しています。
+.It Bq Er ENOSYS
+現在実行中のカーネルが
+.Xr ktrace 2
+のサポート
+.Pq Cd "options KTRACE"
+を外してコンパイルされています。
+.El
+.Sh 関連項目
+.Xr kdump 1 ,
+.Xr ktrace 1 ,
+.Xr ktrace 2
+.Sh 歴史
+.Fn utrace
+システムコールは
+.Fx 2.2
+ではじめて登場しました。