gnu: linux-initrd: Allow Guile modules to be embedded in the initrd.
* gnu/packages/linux-initrd.scm (raw-build-system): New macro. (module-package, compiled-module-package): New procedures. (expression->initrd): Add `modules' keyword parameter. Add "modules" and "modules/compiled" inputs; copy them onto the initrd. * guix/derivations.scm (imported-modules, compiled-modules): Publicize.
This commit is contained in:
Ludovic Courtès
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f02b5474f1
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f989fa392f
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@ -19,10 +19,14 @@
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(define-module (gnu packages linux-initrd)
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#:use-module (guix utils)
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#:use-module (guix licenses)
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#:use-module (guix build-system)
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#:use-module ((guix derivations)
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#:select (imported-modules compiled-modules %guile-for-build))
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#:use-module (gnu packages)
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#:use-module (gnu packages cpio)
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#:use-module (gnu packages compression)
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#:use-module (gnu packages linux)
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#:use-module (gnu packages guile)
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#:use-module ((gnu packages make-bootstrap)
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#:select (%guile-static-stripped))
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#:use-module (guix packages)
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@ -38,6 +42,49 @@
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;;; Code:
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(define-syntax-rule (raw-build-system (store system name inputs) body ...)
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"Lift BODY to a package build system."
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;; TODO: Generalize.
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(build-system
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(name "raw")
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(description "Raw build system")
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(build (lambda* (store name source inputs #:key system #:allow-other-keys)
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(parameterize ((%guile-for-build (package-derivation store
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guile-2.0)))
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body ...)))))
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(define (module-package modules)
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"Return a package that contains all of MODULES, a list of Guile module
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names."
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(package
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(name "guile-modules")
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(version "0")
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(source #f)
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(build-system (raw-build-system (store system name inputs)
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(imported-modules store modules
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#:name name
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#:system system)))
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(synopsis "Set of Guile modules")
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(description synopsis)
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(license gpl3+)
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(home-page "http://www.gnu.org/software/guix/")))
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(define (compiled-module-package modules)
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"Return a package that contains the .go files corresponding to MODULES, a
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list of Guile module names."
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(package
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(name "guile-compiled-modules")
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(version "0")
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(source #f)
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(build-system (raw-build-system (store system name inputs)
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(compiled-modules store modules
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#:name name
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#:system system)))
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(synopsis "Set of compiled Guile modules")
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(description synopsis)
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(license gpl3+)
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(home-page "http://www.gnu.org/software/guix/")))
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(define* (expression->initrd exp
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#:key
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(guile %guile-static-stripped)
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@ -45,12 +92,13 @@
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(gzip gzip)
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(name "guile-initrd")
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(system (%current-system))
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(modules '())
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(linux #f)
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(linux-modules '()))
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"Return a package that contains a Linux initrd (a gzipped cpio archive)
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containing GUILE and that evaluates EXP upon booting. LINUX-MODULES is a list
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of `.ko' file names to be copied from LINUX into the initrd."
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;; TODO: Add a `modules' parameter.
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of `.ko' file names to be copied from LINUX into the initrd. MODULES is a
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list of Guile module names to be embedded in the initrd."
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;; General Linux overview in `Documentation/early-userspace/README' and
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;; `Documentation/filesystems/ramfs-rootfs-initramfs.txt'.
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@ -72,6 +120,16 @@ of `.ko' file names to be copied from LINUX into the initrd."
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"/bin/cpio"))
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(gzip (string-append (assoc-ref %build-inputs "gzip")
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"/bin/gzip"))
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(modules (assoc-ref %build-inputs "modules"))
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(gos (assoc-ref %build-inputs "modules/compiled"))
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(scm-dir (string-append "share/guile/" (effective-version)))
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(go-dir (format #f ".cache/guile/ccache/~a-~a-~a-~a"
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(effective-version)
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(if (eq? (native-endianness) (endianness little))
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"LE"
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"BE")
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(sizeof '*)
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(effective-version)))
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(out (assoc-ref %outputs "out")))
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(mkdir out)
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(mkdir "contents")
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@ -84,19 +142,23 @@ of `.ko' file names to be copied from LINUX into the initrd."
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(chmod "init" #o555)
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(chmod "bin/guile" #o555)
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;; Copy Guile modules.
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(chmod scm-dir #o777)
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(copy-recursively modules scm-dir
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#:follow-symlinks? #t)
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(copy-recursively gos (string-append "lib/guile/"
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(effective-version) "/ccache")
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#:follow-symlinks? #t)
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;; Compile `init'.
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(let ((go-dir (format #f ".cache/guile/ccache/~a-~a-~a-~a"
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(effective-version)
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(if (eq? (native-endianness) (endianness little))
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"LE"
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"BE")
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(sizeof '*)
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(effective-version))))
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(mkdir-p go-dir)
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(set! %load-path (cons modules %load-path))
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(set! %load-compiled-path (cons gos %load-compiled-path))
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(compile-file "init"
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#:opts %auto-compilation-options
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#:output-file (string-append go-dir "/init.go")))
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#:output-file (string-append go-dir "/init.go"))
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;; Copy Linux modules.
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(let* ((linux (assoc-ref %build-inputs "linux"))
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(module-dir (and linux
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(string-append linux "/lib/modules"))))
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@ -161,6 +223,8 @@ of `.ko' file names to be copied from LINUX into the initrd."
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(inputs `(("guile" ,guile)
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("cpio" ,cpio)
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("gzip" ,gzip)
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("modules" ,(module-package modules))
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("modules/compiled" ,(compiled-module-package modules))
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,@(if linux
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`(("linux" ,linux))
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'())))
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@ -61,6 +61,8 @@
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derivation
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%guile-for-build
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imported-modules
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compiled-modules
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build-expression->derivation
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imported-files))
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