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+.\"     $NetBSD: coredump_write.9,v 1.5 2010/12/02 12:54:13 wiz Exp $
+.\"
+.\" Copyright (c) 2005 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Matt Thomas.
+.\"
+.\" 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 December 24, 2005
+.Dt COREDUMP_WRITE 9
+.Os
+.Sh NAME
+.Nm coredump_write
+.Nd common coredump write routine
+.Sh SYNOPSIS
+.In sys/signalvar.h
+.Ft int
+.Fn coredump_write "void *iocookie" "enum uio_seg segflg" \
+"const void *data" "size_t len"
+.Sh DESCRIPTION
+.Fn coredump_write
+is used by both machine-dependent and machine-independent components
+to write information to a coredump.
+.Fa iocookie
+is an opaque pointer that was supplied to the caller of
+.Fn coredump_write .
+.Fa segflg
+indicates where the
+.Fa data
+is located, system space or user space.
+.Fa data
+points to the information to be written to the coredump.
+.Fa len
+is the amount of data to be written.
+.Pp
+.Fn coredump_write
+returns 0 on success and an appropriate error code on failure.
+.Sh CODE REFERENCES
+Process core dumps are initiated within the file
+.Pa sys/kern/kern_sig.c .
+Process core dumps for ELF
+.Nx
+binaries are performed within the files
+.Pa sys/kern/core_elf32.c
+or
+.Pa sys/kern/core_elf64.c .
+Process core dumps for other
+.Nx
+binaries are performed within the file
+.Pa sys/kern/core_netbsd.c .
+.Sh SEE ALSO
+.Xr cpu_coredump 9