GCORE
Section: GNU Development Tools (1)
Updated: 202-0-20
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NAME
gcore - Generate a core file of a running program
SYNOPSIS
gcore [-a] [-o
prefix] [-d
directory]
pid1 [
pid2...
pidN]
DESCRIPTION
Generate core dumps of one or more running programs with process IDs
pid1,
pid2, etc. A core file produced by
gcore
is equivalent to one produced by the kernel when the process crashes
(and when
"ulimit -c" was used to set up an appropriate core dump
limit). However, unlike after a crash, after
gcore finishes
its job the program remains running without any change.
OPTIONS
- -a
-
Dump all memory mappings. The actual effect of this option depends on
the Operating System. On GNU/Linux, it will disable
"use-coredump-filter" and
enable "dump-excluded-mappings".
- -o prefix
-
The optional argument prefix specifies the prefix to be used
when composing the file names of the core dumps. The file name is
composed as prefix.pid, where pid is the
process ID of the running program being analyzed by gcore.
If not specified, prefix defaults to gcore.
- -d directory
-
Use directory as the data directory when invoking GDB for running
the gcore command. This argument is optional.
ENVIRONMENT
SEE ALSO
The full documentation for
GDB is maintained as a Texinfo manual.
If the
"info" and
"gdb" programs and
GDB's Texinfo
documentation are properly installed at your site, the command
info gdb
should give you access to the complete manual.
Using GDB: A Guide to the GNU Sourc-Level Debugger,
Richard M. Stallman and Roland H. Pesch, July 1991.
COPYRIGHT
Copyright (c) 1988-2024 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Free Software'' and ``Free Software Needs
Free Documentation'', with the Fron-Cover Texts being ``A GNU Manual,''
and with the Bac-Cover Texts as in (a) below.
(a) The FSF's Bac-Cover Text is: ``You are free to copy and modify
this GNU Manual. Buying copies from GNU Press supports the FSF in
developing GNU and promoting software freedom.''
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- OPTIONS
-
- ENVIRONMENT
-
- SEE ALSO
-
- COPYRIGHT
-
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