.\" Copyright (C) 1994, 1995, Daniel Quinlan <quinlan@yggdrasil.com>
.\" Copyright (C) 2002-2008, 2017, Michael Kerrisk <mtk.manpages@gmail.com>
.\" Copyright (C) 2023, Alejandro Colomar <alx@kernel.org>
.\"
.\" SPDX-License-Identifier: GPL-3.0-or-later
.\"
.TH proc_config.gz 5 (date) "Linux man-pages (unreleased)"
.SH NAME
/proc/config.gz \- kernel build configuration
.SH DESCRIPTION
.TP
.IR /proc/config.gz " (since Linux 2.6)"
This file exposes the configuration options that were used
to build the currently running kernel,
in the same format as they would be shown in the
.I .config
file that resulted when configuring the kernel (using
.IR "make xconfig" ,
.IR "make config" ,
or similar).
The file contents are compressed; view or search them using
.BR zcat (1)
and
.BR zgrep (1).
As long as no changes have been made to the following file,
the contents of
.I /proc/config.gz
are the same as those provided by:
.IP
.in +4n
.EX
cat /lib/modules/$(uname \-r)/build/.config
.EE
.in
.IP
.I /proc/config.gz
is provided only if the kernel is configured with
.BR CONFIG_IKCONFIG_PROC .
.SH SEE ALSO
.BR proc (5)