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.\" ========================================================================
.\"
.IX Title "GCORE 1"
.TH GCORE 1 "2016-11-23" "gdb-7.10" "GNU Development Tools"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
gcore \- Generate a core file of a running program
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
gcore [\-o \fIfilename\fR] \fIpid\fR
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Generate a core dump of a running program with process \s-1ID \s0\fIpid\fR.
Produced file is equivalent to a kernel produced core file as if the process
crashed (and if \f(CW\*(C`ulimit \-c\*(C'\fR were used to set up an appropriate core dump
limit).  Unlike after a crash, after \fBgcore\fR the program remains
running without any change.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-o\fR \fIfilename\fR" 4
.IX Item "-o filename"
The optional argument
\&\fIfilename\fR specifies the file name where to put the core dump.
If not specified, the file name defaults to \fIcore.\fIpid\fI\fR,
where \fIpid\fR is the running program process \s-1ID.\s0
.SH "SEE ALSO"
.IX Header "SEE ALSO"
The full documentation for \s-1GDB\s0 is maintained as a Texinfo manual.
If the \f(CW\*(C`info\*(C'\fR and \f(CW\*(C`gdb\*(C'\fR programs and \s-1GDB\s0's Texinfo
documentation are properly installed at your site, the command
.PP
.Vb 1
\&        info gdb
.Ve
.PP
should give you access to the complete manual.
.PP
\&\fIUsing \s-1GDB: A\s0 Guide to the \s-1GNU\s0 Source-Level Debugger\fR,
Richard M. Stallman and Roland H. Pesch, July 1991.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1988\-2015 Free Software Foundation, Inc.
.PP
Permission is granted to copy, distribute and/or modify this document
under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being \*(L"Free Software\*(R" and \*(L"Free Software Needs
Free Documentation\*(R", with the Front-Cover Texts being \*(L"A \s-1GNU\s0 Manual,\*(R"
and with the Back-Cover Texts as in (a) below.
.PP
(a) The \s-1FSF\s0's Back-Cover Text is: \*(L"You are free to copy and modify
this \s-1GNU\s0 Manual.  Buying copies from \s-1GNU\s0 Press supports the \s-1FSF\s0 in
developing \s-1GNU\s0 and promoting software freedom.\*(R"