Add (guix build-system linux-module).
* guix/build/linux-module-build-system.scm: New file. * guix/build-system/linux-module.scm: New file. * doc/guix.texi (Build Systems): Document it. * Makefile.am (MODULES): Add them.
This commit is contained in:
Danny Milosavljevic
parent
12327d7447
commit
ce6312999f
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@ -120,6 +120,7 @@ MODULES = \
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guix/build-system/gnu.scm \
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guix/build-system/guile.scm \
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guix/build-system/haskell.scm \
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guix/build-system/linux-module.scm \
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guix/build-system/perl.scm \
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guix/build-system/python.scm \
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guix/build-system/ocaml.scm \
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@ -173,6 +174,7 @@ MODULES = \
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guix/build/texlive-build-system.scm \
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guix/build/waf-build-system.scm \
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guix/build/haskell-build-system.scm \
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guix/build/linux-module-build-system.scm \
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guix/build/store-copy.scm \
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guix/build/utils.scm \
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guix/build/union.scm \
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@ -6210,6 +6210,33 @@ is not enabled by default. It can be enabled with @code{#:glib-or-gtk?}.
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@end table
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@end defvr
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@defvr {Scheme Variable} linux-module-build-system
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@var{linux-module-build-system} allows building Linux kernel modules.
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@cindex build phases
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This build system is an extension of @var{gnu-build-system}, but with the
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following phases changed:
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@table @code
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@item configure
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This phase configures the environment so that the Linux kernel's Makefile
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can be used to build the external kernel module.
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@item build
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This phase uses the Linux kernel's Makefile in order to build the external
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kernel module.
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@item install
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This phase uses the Linux kernel's Makefile in order to install the external
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kernel module.
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@end table
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It is possible and useful to specify the Linux kernel to use for building
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the module (in the "arguments" form of a package using the
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linux-module-build-system, use the key #:linux to specify it).
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@end defvr
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Lastly, for packages that do not need anything as sophisticated, a
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``trivial'' build system is provided. It is trivial in the sense that
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it provides basically no support: it does not pull any implicit inputs,
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@ -0,0 +1,166 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
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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 derivations)
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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 (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 (default-kmod)
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"Return the default kmod 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 'kmod)))
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(define (default-gcc)
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"Return the default gcc package."
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;; Do not use `@' to avoid introducing circular dependencies.
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(let ((module (resolve-interface '(gnu packages gcc))))
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(module-ref module 'gcc-7)))
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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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(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 outputs #:allow-other-keys)
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(let* ((out (assoc-ref outputs "out"))
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(out-lib-build (string-append out "/lib/modules/build")))
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; TODO: Only preserve the minimum, i.e. [Kbuild], Kconfig, scripts, include, ".config".
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(copy-recursively "." out-lib-build)
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#t)))))))))
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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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'(#:source #:target #:gcc #:kmod #:linux #:inputs #:native-inputs))
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(and (not target) ;XXX: no cross-compilation
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(bag
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(name name)
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(system system)
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(host-inputs `(,@(if source
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`(("source" ,source))
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'())
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,@inputs
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,@(standard-packages)))
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(build-inputs `(("linux" ,linux) ; for "Module.symvers".
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("linux-module-builder"
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,(make-linux-module-builder linux))
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,@native-inputs
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;; TODO: Remove "gmp", "mpfr", "mpc" since they are only needed to compile the gcc plugins. Maybe remove "flex", "bison", "elfutils", "perl", "openssl". That leaves very little ("bc", "gcc", "kmod").
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,@(package-native-inputs linux)))
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(outputs outputs)
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(build linux-module-build)
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(arguments (strip-keyword-arguments private-keywords arguments)))))
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(define* (linux-module-build store name inputs
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#:key
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(search-paths '())
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(tests? #t)
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(phases '(@ (guix build linux-module-build-system)
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%standard-phases))
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(outputs '("out"))
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(system (%current-system))
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(guile #f)
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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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`(begin
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(use-modules ,@modules)
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(linux-module-build #:name ,name
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#:source ,(match (assoc-ref inputs "source")
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(((? derivation? source))
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(derivation->output-path source))
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((source)
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source)
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(source
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source))
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#:search-paths ',(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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#:tests? ,tests?
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#:outputs %outputs
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#:inputs %build-inputs)))
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(define guile-for-build
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(match guile
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((? package?)
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(package-derivation store guile system #:graft? #f))
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(#f ; the default
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(let* ((distro (resolve-interface '(gnu packages commencement)))
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(guile (module-ref distro 'guile-final)))
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(package-derivation store guile system #:graft? #f)))))
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(build-expression->derivation store name builder
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#:system system
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#:inputs inputs
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#:modules imported-modules
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#:outputs outputs
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#:guile-for-build guile-for-build))
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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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@ -0,0 +1,78 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
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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 linux-module-build-system)
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#:use-module ((guix build gnu-build-system) #:prefix gnu:)
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#:use-module (guix build utils)
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#:use-module (ice-9 ftw)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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linux-module-build))
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;; Commentary:
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;;
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;; Builder-side code of linux-module build.
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;;
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;; Code:
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;; TODO: It might make sense to provide "Module.symvers" in the future.
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(define* (configure #:key inputs #:allow-other-keys)
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#t)
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(define* (build #:key inputs make-flags #:allow-other-keys)
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(apply invoke "make" "-C"
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(string-append (assoc-ref inputs "linux-module-builder")
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"/lib/modules/build")
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(string-append "M=" (getcwd))
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(or make-flags '())))
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;; This block was copied from make-linux-libre--only took the "modules_install"
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;; part.
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(define* (install #:key inputs native-inputs outputs #:allow-other-keys)
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(let* ((out (assoc-ref outputs "out"))
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(moddir (string-append out "/lib/modules"))
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(kmod (assoc-ref (or native-inputs inputs) "kmod")))
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;; Install kernel modules
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(mkdir-p moddir)
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(invoke "make" "-C"
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(string-append (assoc-ref inputs "linux-module-builder")
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"/lib/modules/build")
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(string-append "M=" (getcwd))
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(string-append "DEPMOD=" kmod "/bin/depmod")
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(string-append "MODULE_DIR=" moddir)
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(string-append "INSTALL_PATH=" out)
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(string-append "INSTALL_MOD_PATH=" out)
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"INSTALL_MOD_STRIP=1"
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"modules_install")))
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(define %standard-phases
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(modify-phases gnu:%standard-phases
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(replace 'configure configure)
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(replace 'build build)
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(replace 'install install)))
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(define* (linux-module-build #:key inputs (phases %standard-phases)
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#:allow-other-keys #:rest args)
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"Build the given package, applying all of PHASES in order, with a Linux kernel in attendance."
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(apply gnu:gnu-build
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#:inputs inputs #:phases phases
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args))
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;;; linux-module-build-system.scm ends here
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