mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
104 lines
3.2 KiB
Groff
104 lines
3.2 KiB
Groff
.\" Copyright (c) 1983, 1990, 1992, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" 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 University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
.\"
|
|
.\" @(#)gcore.1 8.2 (Berkeley) 4/18/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd April 18, 1994
|
|
.Dt GCORE 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm gcore
|
|
.Nd get core images of running process
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl s
|
|
.Op Fl c Ar core
|
|
.Op Ar executable
|
|
.Ar pid
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility creates a core image of the specified process,
|
|
suitable for use with
|
|
.Xr gdb 1 .
|
|
By default, the core is written to the file
|
|
.Dq Pa core.<pid> .
|
|
The process identifier,
|
|
.Ar pid ,
|
|
must be given on the command line.
|
|
If no executable image is
|
|
specified,
|
|
.Nm
|
|
will use
|
|
.Dq Pa /proc/<pid>/file .
|
|
.Pp
|
|
The following options are available:
|
|
.Bl -tag -width indent
|
|
.It Fl c
|
|
Write the core file to the specified file instead of
|
|
.Dq Pa core.<pid> .
|
|
.It Fl s
|
|
Stop the process while gathering the core image, and resume it
|
|
when done.
|
|
This guarantees that the resulting core dump will
|
|
be in a consistent state.
|
|
The process is resumed even if it was
|
|
already stopped.
|
|
The same effect can be achieved manually with
|
|
.Xr kill 1 .
|
|
.El
|
|
.Sh FILES
|
|
.Bl -tag -width /var/log/messages -compact
|
|
.It Pa core.<pid>
|
|
the core image
|
|
.It Pa /proc/<pid>/file
|
|
the executable image
|
|
.El
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
utility appeared in
|
|
.Bx 4.2 .
|
|
.Sh BUGS
|
|
Context switches or paging activity that occur while
|
|
.Nm
|
|
is running may cause the program to become confused.
|
|
For best results, use
|
|
.Fl s
|
|
to temporarily stop the target process.
|
|
.Pp
|
|
The
|
|
.Nm
|
|
utility is not compatible with the original
|
|
.Bx 4.2
|
|
version.
|