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+.\" 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)