.\"     $NetBSD: gcore.1,v 1.15 2014/01/21 02:53:30 reed Exp $
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.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Christos Zoulas.
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.Dd January 9, 2005
.Dt GCORE 1
.Os
.Sh NAME
.Nm gcore
.Nd get core images of running process
.Sh SYNOPSIS
.Nm
.Op Fl c Ar corename
.Ar pid
.Op Ar pid ...
.Sh DESCRIPTION
.Nm
creates a core image of the specified processes
suitable for use with
.Xr gdb 1 .
By default, the core is written to the file
.Dq Pa \*[Lt]progname\*[Gt].core ,
where
.Dq Aq Pa progname
is the program name of the process corresponding to the pid that is given on
the command line.
This filename can be changed by supplying the
.Fl c Ar corename
argument, or setting
.Dq Pa proc.\*[Lt]pid\*[Gt].corename
with
.Xr sysctl 8 .
.Sh FILES
.Bl -tag -width /var/log/messages -compact
.It Pa \*[Lt]progname\*[Gt].core
The core image.
.El
.Sh SEE ALSO
.Xr gdb 1 ,
.Xr sysctl 8
.Sh HISTORY
.Nm
appeared in
.Bx 4.2 ,
disappeared in
.Nx 1.2 ,
and reappeared in
.Nx 2.0 .
.Sh BUGS
The process is not stopped while the core file is generated, so it might
not be consistent.