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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (guix build linux-module-build-system)
+ #:use-module ((guix build gnu-build-system) #:prefix gnu:)
+ #:use-module (guix build utils)
+ #:use-module (ice-9 ftw)
+ #:use-module (ice-9 match)
+ #:use-module (srfi srfi-1)
+ #:use-module (srfi srfi-26)
+ #:export (%standard-phases
+ linux-module-build))
+
+;; Commentary:
+;;
+;; Builder-side code of linux-module build.
+;;
+;; Code:
+
+;; TODO: It might make sense to provide "Module.symvers" in the future.
+(define* (configure #:key inputs #:allow-other-keys)
+ #t)
+
+(define* (build #:key inputs make-flags #:allow-other-keys)
+ (apply invoke "make" "-C"
+ (string-append (assoc-ref inputs "linux-module-builder")
+ "/lib/modules/build")
+ (string-append "M=" (getcwd))
+ (or make-flags '())))
+
+;; This block was copied from make-linux-libre--only took the "modules_install"
+;; part.
+(define* (install #:key inputs native-inputs outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out"))
+ (moddir (string-append out "/lib/modules"))
+ (kmod (assoc-ref (or native-inputs inputs) "kmod")))
+ ;; Install kernel modules
+ (mkdir-p moddir)
+ (invoke "make" "-C"
+ (string-append (assoc-ref inputs "linux-module-builder")
+ "/lib/modules/build")
+ (string-append "M=" (getcwd))
+ (string-append "DEPMOD=" kmod "/bin/depmod")
+ (string-append "MODULE_DIR=" moddir)
+ (string-append "INSTALL_PATH=" out)
+ (string-append "INSTALL_MOD_PATH=" out)
+ "INSTALL_MOD_STRIP=1"
+ "modules_install")))
+
+(define %standard-phases
+ (modify-phases gnu:%standard-phases
+ (replace 'configure configure)
+ (replace 'build build)
+ (replace 'install install)))
+
+(define* (linux-module-build #:key inputs (phases %standard-phases)
+ #:allow-other-keys #:rest args)
+ "Build the given package, applying all of PHASES in order, with a Linux kernel in attendance."
+ (apply gnu:gnu-build
+ #:inputs inputs #:phases phases
+ args))
+
+;;; linux-module-build-system.scm ends here