1.\" $NetBSD: gcore.1,v 1.13 2008/04/30 13:11:01 martin Exp $ 2.\" 3.\" Copyright (c) 2003 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Christos Zoulas. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.\" 31.Dd January 9, 2005 32.Dt GCORE 1 33.Os 34.Sh NAME 35.Nm gcore 36.Nd get core images of running process 37.Sh SYNOPSIS 38.Nm 39.Op Fl c Ar corename 40.Ar pid 41.Op Ar pid ... 42.Sh DESCRIPTION 43.Nm 44creates a core image of the specified processes 45suitable for use with 46.Xr gdb 1 . 47By default, the core is written to the file 48.Dq Pa \*[Lt]progname\*[Gt].core , 49where 50.Dq Aq Pa progname 51is the program name of the process corresponding to the pid that is given on 52the command line. 53This filename can be changed by supplying the 54.Fl c Ar corename 55argument, or setting 56.Dq Pa proc.\*[Lt]pid\*[Gt].corename 57with 58.Xr sysctl 8 . 59.Sh FILES 60.Bl -tag -width /var/log/messages -compact 61.It Pa \*[Lt]progname\*[Gt].core 62The core image. 63.El 64.Sh SEE ALSO 65.Xr gdb 1 , 66.Xr sysctl 8 67.Sh HISTORY 68.Nm 69appeared in BSD 4.2, disappeared in 70.Nx 1.2 , 71and reappeared in 72.Nx 2.0 . 73.Sh BUGS 74The process is not stopped while the core file is generated, so it might 75not be consistent. 76