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01/02: Add (guix build-system linux-module).
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guix-commits |
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Subject: |
01/02: Add (guix build-system linux-module). |
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Date: |
Thu, 11 Apr 2019 11:53:13 -0400 (EDT) |
dannym pushed a commit to branch master
in repository guix.
commit ce6312999f20bb8d7e73c29b315747b1f4d184aa
Author: Danny Milosavljevic <address@hidden>
Date: Fri Apr 5 11:41:17 2019 +0200
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.
---
Makefile.am | 2 +
doc/guix.texi | 27 +++++
guix/build-system/linux-module.scm | 166 +++++++++++++++++++++++++++++++
guix/build/linux-module-build-system.scm | 78 +++++++++++++++
4 files changed, 273 insertions(+)
diff --git a/Makefile.am b/Makefile.am
index 704f245..8d52326 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -120,6 +120,7 @@ MODULES = \
guix/build-system/gnu.scm \
guix/build-system/guile.scm \
guix/build-system/haskell.scm \
+ guix/build-system/linux-module.scm \
guix/build-system/perl.scm \
guix/build-system/python.scm \
guix/build-system/ocaml.scm \
@@ -173,6 +174,7 @@ MODULES = \
guix/build/texlive-build-system.scm \
guix/build/waf-build-system.scm \
guix/build/haskell-build-system.scm \
+ guix/build/linux-module-build-system.scm \
guix/build/store-copy.scm \
guix/build/utils.scm \
guix/build/union.scm \
diff --git a/doc/guix.texi b/doc/guix.texi
index 7dc4e18..9be7d9a 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -6210,6 +6210,33 @@ is not enabled by default. It can be enabled with
@code{#:glib-or-gtk?}.
@end table
@end defvr
address@hidden {Scheme Variable} linux-module-build-system
address@hidden allows building Linux kernel modules.
+
address@hidden build phases
+This build system is an extension of @var{gnu-build-system}, but with the
+following phases changed:
+
address@hidden @code
+
address@hidden configure
+This phase configures the environment so that the Linux kernel's Makefile
+can be used to build the external kernel module.
+
address@hidden build
+This phase uses the Linux kernel's Makefile in order to build the external
+kernel module.
+
address@hidden install
+This phase uses the Linux kernel's Makefile in order to install the external
+kernel module.
address@hidden table
+
+It is possible and useful to specify the Linux kernel to use for building
+the module (in the "arguments" form of a package using the
+linux-module-build-system, use the key #:linux to specify it).
address@hidden defvr
+
Lastly, for packages that do not need anything as sophisticated, a
``trivial'' build system is provided. It is trivial in the sense that
it provides basically no support: it does not pull any implicit inputs,
diff --git a/guix/build-system/linux-module.scm
b/guix/build-system/linux-module.scm
new file mode 100644
index 0000000..3ed3351
--- /dev/null
+++ b/guix/build-system/linux-module.scm
@@ -0,0 +1,166 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Danny Milosavljevic <address@hidden>
+;;;
+;;; 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-system linux-module)
+ #:use-module (guix store)
+ #:use-module (guix utils)
+ #:use-module (guix derivations)
+ #:use-module (guix search-paths)
+ #:use-module (guix build-system)
+ #:use-module (guix build-system gnu)
+ #:use-module (guix packages)
+ #:use-module (ice-9 match)
+ #:export (%linux-module-build-system-modules
+ linux-module-build
+ linux-module-build-system))
+
+;; Commentary:
+;;
+;; Code:
+
+(define %linux-module-build-system-modules
+ ;; Build-side modules imported by default.
+ `((guix build linux-module-build-system)
+ ,@%gnu-build-system-modules))
+
+(define (default-linux)
+ "Return the default Linux package."
+
+ ;; Do not use `@' to avoid introducing circular dependencies.
+ (let ((module (resolve-interface '(gnu packages linux))))
+ (module-ref module 'linux-libre)))
+
+(define (default-kmod)
+ "Return the default kmod package."
+
+ ;; Do not use `@' to avoid introducing circular dependencies.
+ (let ((module (resolve-interface '(gnu packages linux))))
+ (module-ref module 'kmod)))
+
+(define (default-gcc)
+ "Return the default gcc package."
+
+ ;; Do not use `@' to avoid introducing circular dependencies.
+ (let ((module (resolve-interface '(gnu packages gcc))))
+ (module-ref module 'gcc-7)))
+
+(define (make-linux-module-builder linux)
+ (package
+ (inherit linux)
+ (name (string-append (package-name linux) "-module-builder"))
+ (arguments
+ (substitute-keyword-arguments (package-arguments linux)
+ ((#:phases phases)
+ `(modify-phases ,phases
+ (replace 'build
+ (lambda _
+ (invoke "make" "modules_prepare")))
+ (delete 'strip) ; faster.
+ (replace 'install
+ (lambda* (#:key outputs #:allow-other-keys)
+ (let* ((out (assoc-ref outputs "out"))
+ (out-lib-build (string-append out "/lib/modules/build")))
+ ; TODO: Only preserve the minimum, i.e. [Kbuild], Kconfig,
scripts, include, ".config".
+ (copy-recursively "." out-lib-build)
+ #t)))))))))
+
+(define* (lower name
+ #:key source inputs native-inputs outputs
+ system target
+ (linux (default-linux))
+ #:allow-other-keys
+ #:rest arguments)
+ "Return a bag for NAME."
+ (define private-keywords
+ '(#:source #:target #:gcc #:kmod #:linux #:inputs #:native-inputs))
+
+ (and (not target) ;XXX: no cross-compilation
+ (bag
+ (name name)
+ (system system)
+ (host-inputs `(,@(if source
+ `(("source" ,source))
+ '())
+ ,@inputs
+ ,@(standard-packages)))
+ (build-inputs `(("linux" ,linux) ; for "Module.symvers".
+ ("linux-module-builder"
+ ,(make-linux-module-builder linux))
+ ,@native-inputs
+ ;; 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").
+ ,@(package-native-inputs linux)))
+ (outputs outputs)
+ (build linux-module-build)
+ (arguments (strip-keyword-arguments private-keywords arguments)))))
+
+(define* (linux-module-build store name inputs
+ #:key
+ (search-paths '())
+ (tests? #t)
+ (phases '(@ (guix build linux-module-build-system)
+ %standard-phases))
+ (outputs '("out"))
+ (system (%current-system))
+ (guile #f)
+ (imported-modules
+ %linux-module-build-system-modules)
+ (modules '((guix build linux-module-build-system)
+ (guix build utils))))
+ "Build SOURCE using LINUX, and with INPUTS."
+ (define builder
+ `(begin
+ (use-modules ,@modules)
+ (linux-module-build #:name ,name
+ #:source ,(match (assoc-ref inputs "source")
+ (((? derivation? source))
+ (derivation->output-path source))
+ ((source)
+ source)
+ (source
+ source))
+ #:search-paths ',(map search-path-specification->sexp
+ search-paths)
+ #:phases ,phases
+ #:system ,system
+ #:tests? ,tests?
+ #:outputs %outputs
+ #:inputs %build-inputs)))
+
+ (define guile-for-build
+ (match guile
+ ((? package?)
+ (package-derivation store guile system #:graft? #f))
+ (#f ; the default
+ (let* ((distro (resolve-interface '(gnu packages commencement)))
+ (guile (module-ref distro 'guile-final)))
+ (package-derivation store guile system #:graft? #f)))))
+
+ (build-expression->derivation store name builder
+ #:system system
+ #:inputs inputs
+ #:modules imported-modules
+ #:outputs outputs
+ #:guile-for-build guile-for-build))
+
+(define linux-module-build-system
+ (build-system
+ (name 'linux-module)
+ (description "The Linux module build system")
+ (lower lower)))
+
+;;; linux-module.scm ends here
diff --git a/guix/build/linux-module-build-system.scm
b/guix/build/linux-module-build-system.scm
new file mode 100644
index 0000000..a6664f1
--- /dev/null
+++ b/guix/build/linux-module-build-system.scm
@@ -0,0 +1,78 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2019 Danny Milosavljevic <address@hidden>
+;;;
+;;; 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