266 lines
11 KiB
Scheme
266 lines
11 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
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;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com>
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;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2021 Tobias Geerinckx-Rice <me@tobias.gr>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build-system linux-module)
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#:use-module (guix store)
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#:use-module (guix utils)
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#:use-module (guix gexp)
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#:use-module (guix monads)
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#:use-module (guix search-paths)
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#:use-module (guix build-system)
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#:use-module (guix build-system gnu)
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#:use-module (guix packages)
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#:use-module (guix platform)
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#:use-module (ice-9 match)
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#:export (%linux-module-build-system-modules
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linux-module-build
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linux-module-build-system))
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;; Commentary:
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;;
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;; Code:
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(define %linux-module-build-system-modules
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;; Build-side modules imported by default.
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`((guix build linux-module-build-system)
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,@%gnu-build-system-modules))
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(define (default-linux)
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"Return the default Linux package."
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;; Do not use `@' to avoid introducing circular dependencies.
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(let ((module (resolve-interface '(gnu packages linux))))
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(module-ref module 'linux-libre)))
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(define (system->arch system)
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(platform-linux-architecture (lookup-platform-by-target-or-system system)))
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(define (make-linux-module-builder linux)
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(package
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(inherit linux)
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(name (string-append (package-name linux) "-module-builder"))
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(inputs
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`(("linux" ,linux)))
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(arguments
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(substitute-keyword-arguments (package-arguments linux)
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((#:phases phases)
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#~(modify-phases #$phases
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(replace 'build
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(lambda _
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(invoke "make" "modules_prepare")))
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(delete 'strip) ;faster
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(replace 'install
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(lambda* (#:key inputs #:allow-other-keys)
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(let ((out-lib-build (string-append #$output "/lib/modules/build")))
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;; Delete some huge items that we probably don't need.
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;; TODO: Only preserve the minimum, i.e. [Kbuild], Kconfig,
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;; scripts, include, ".config".
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(copy-recursively "." out-lib-build)
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(for-each (lambda (name)
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(when (file-exists? name)
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(delete-file-recursively name)))
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(map (lambda (name)
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(string-append out-lib-build "/" name))
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'("arch" ; 137 MB
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;;"tools" ; 44 MB built by our 'build phase
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"tools/testing" ; 14 MB
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"tools/perf" ; 17 MB
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"drivers" ; 600 MB
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"Documentation" ; 52 MB
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"fs" ; 43 MB
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"net" ; 33 MB
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"samples" ; 2 MB
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"sound"))) ; 40 MB
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;; Reinstate arch/**/dts since "scripts/dtc" depends on it.
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;; Reinstate arch/**/include directories.
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;; Reinstate arch/**/Makefile.
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;; Reinstate arch/**/module.lds.
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(for-each
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(lambda (name)
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(mkdir-p (dirname (string-append out-lib-build "/" name)))
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(copy-recursively name
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(string-append out-lib-build "/" name)))
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(append (find-files "arch" "^(dts|include)$"
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#:directories? #t)
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(find-files "arch" "^(Makefile|module.lds)$")))
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(let* ((linux #$(this-package-input "linux")))
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(install-file (string-append linux "/System.map")
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out-lib-build)
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(let ((source (string-append linux "/Module.symvers")))
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(when (file-exists? source)
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(install-file source out-lib-build)))))))))))))
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(define* (lower name
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#:key source inputs native-inputs outputs
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system target
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(linux (default-linux))
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#:allow-other-keys
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#:rest arguments)
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"Return a bag for NAME."
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(define private-keywords
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`(#:target #:gcc #:kmod #:linux #:inputs #:native-inputs
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,@(if target '() '(#:target))))
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(bag
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(name name)
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(system system) (target target)
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(build-inputs `(,@(if source
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`(("source" ,source))
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'())
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,@native-inputs
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;; TODO: Remove "gmp", "mpfr", "mpc" since they are
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;; only needed to compile the gcc plugins. Maybe
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;; remove "flex", "bison", "elfutils", "perl",
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;; "openssl". That leaves very little ("bc", "gcc",
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;; "kmod").
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,@(package-native-inputs linux)
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,@(if target
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;; Use the standard cross inputs of
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;; 'gnu-build-system'.
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(standard-cross-packages target 'host)
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'())
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;; Keep the standard inputs of 'gnu-build-system'.
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,@(standard-packages)))
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(host-inputs `(,@inputs
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("linux" ,linux)
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("linux-module-builder"
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,(make-linux-module-builder linux))))
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(target-inputs (if target
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(standard-cross-packages target 'target)
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'()))
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(outputs outputs)
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(build (if target linux-module-build-cross linux-module-build))
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(arguments (strip-keyword-arguments private-keywords arguments))))
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(define* (linux-module-build name inputs
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#:key
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source target
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(search-paths '())
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(tests? #t)
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(phases '%standard-phases)
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(outputs '("out"))
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(make-flags ''())
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(parallel-build? #t)
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(system (%current-system))
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(source-directory ".")
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(guile #f)
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(substitutable? #t)
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(imported-modules
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%linux-module-build-system-modules)
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(modules '((guix build linux-module-build-system)
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(guix build utils))))
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"Build SOURCE using LINUX, and with INPUTS."
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(define builder
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(with-imported-modules imported-modules
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#~(begin
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(use-modules #$@(sexp->gexp modules))
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#$(with-build-variables inputs outputs
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#~(linux-module-build #:name #$name
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#:source #+source
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#:source-directory #$source-directory
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#:search-paths '#$(sexp->gexp
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(map search-path-specification->sexp
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search-paths))
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#:phases #$phases
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#:system #$system
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#:target #$target
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#:arch #$(system->arch (or target system))
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#:tests? #$tests?
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#:outputs #$(outputs->gexp outputs)
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#:make-flags #$make-flags
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#:parallel-build? #$parallel-build?
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#:inputs #$(input-tuples->gexp inputs))))))
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(mlet %store-monad ((guile (package->derivation (or guile (default-guile))
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system #:graft? #f)))
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(gexp->derivation name builder
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#:system system
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#:guile-for-build guile
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#:substitutable? substitutable?)))
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(define* (linux-module-build-cross
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name
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#:key
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source target
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build-inputs target-inputs host-inputs
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(guile #f)
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(outputs '("out"))
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(make-flags ''())
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(parallel-build? #t)
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(search-paths '())
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(native-search-paths '())
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(tests? #f)
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(phases '%standard-phases)
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(system (%current-system))
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(source-directory ".")
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(substitutable? #t)
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(imported-modules
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%linux-module-build-system-modules)
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(modules '((guix build linux-module-build-system)
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(guix build utils))))
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(define builder
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(with-imported-modules imported-modules
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#~(begin
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(use-modules #$@(sexp->gexp modules))
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(define %build-host-inputs
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'#+(input-tuples->gexp build-inputs))
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(define %build-target-inputs
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(append #$(input-tuples->gexp host-inputs)
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#+(input-tuples->gexp target-inputs)))
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(linux-module-build #:name #$name
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#:source #+source
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#:source-directory #$source-directory
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#:system #$system
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#:target #$target
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#:arch #$(system->arch (or target system))
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#:outputs #$(outputs->gexp outputs)
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#:make-flags #$make-flags
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#:inputs %build-target-inputs
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#:native-inputs %build-host-inputs
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#:search-paths
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'#$(sexp->gexp
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(map search-path-specification->sexp
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search-paths))
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#:native-search-paths
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'#$(map
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search-path-specification->sexp
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native-search-paths)
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#:phases #$phases
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#:tests? #$tests?))))
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(mlet %store-monad ((guile (package->derivation (or guile (default-guile))
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system #:graft? #f)))
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(gexp->derivation name builder
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#:system system
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#:guile-for-build guile
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#:substitutable? substitutable?)))
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(define linux-module-build-system
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(build-system
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(name 'linux-module)
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(description "The Linux module build system")
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(lower lower)))
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;;; linux-module.scm ends here
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