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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:
;; Copied from make-linux-libre's "configure" phase.
(define* (configure #:key inputs target #:allow-other-keys)
(setenv "KCONFIG_NOTIMESTAMP" "1")
(setenv "KBUILD_BUILD_TIMESTAMP" (getenv "SOURCE_DATE_EPOCH"))
;(let ((arch ,(system->linux-architecture
; (or (%current-target-system)
; (%current-system)))))
; (setenv "ARCH" arch)
; (format #t "`ARCH' set to `~a'~%" (getenv "ARCH")))
(when target
(setenv "CROSS_COMPILE" (string-append target "-"))
(format #t "`CROSS_COMPILE' set to `~a'~%"
(getenv "CROSS_COMPILE")))
; TODO: (setenv "EXTRA_VERSION" ,extra-version)
; TODO: kernel ".config".
#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
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