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-rw-r--r--gnu/build/linux-modules.scm23
1 files changed, 22 insertions, 1 deletions
diff --git a/gnu/build/linux-modules.scm b/gnu/build/linux-modules.scm
index c66ef97012..9b9fc0d9d8 100644
--- a/gnu/build/linux-modules.scm
+++ b/gnu/build/linux-modules.scm
@@ -1,6 +1,7 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2016, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
+;;; Copyright © 2018 Danny Milosavljevic <dannym@scratchpost.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -48,7 +49,9 @@
device-module-aliases
known-module-aliases
matching-modules
- missing-modules))
+ missing-modules
+
+ write-module-alias-database))
;;; Commentary:
;;;
@@ -486,4 +489,22 @@ are required to access DEVICE."
(remove (cut member <> provided) modules))
'()))
+(define (write-module-alias-database directory)
+ "Traverse the '.ko' files in DIRECTORY and create the corresponding
+'modules.alias' file."
+ (define aliases
+ (map (lambda (file)
+ (cons (file-name->module-name file) (module-aliases file)))
+ (find-files directory "\\.ko$")))
+
+ (call-with-output-file (string-append directory "/modules.alias")
+ (lambda (port)
+ (display "# Aliases extracted from modules themselves.\n" port)
+ (for-each (match-lambda
+ ((module . aliases)
+ (for-each (lambda (alias)
+ (format port "alias ~a ~a\n" alias module))
+ aliases)))
+ aliases))))
+
;;; linux-modules.scm ends here