From f989fa392f1786720cf18e75cc085e4f0f8d76d9 Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Wed, 28 Aug 2013 23:59:14 +0200 Subject: 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. --- gnu/packages/linux-initrd.scm | 102 ++++++++++++++++++++++++++++++++++-------- 1 file changed, 83 insertions(+), 19 deletions(-) (limited to 'gnu') diff --git a/gnu/packages/linux-initrd.scm b/gnu/packages/linux-initrd.scm index 348e411d07..db54699ac1 100644 --- a/gnu/packages/linux-initrd.scm +++ b/gnu/packages/linux-initrd.scm @@ -19,10 +19,14 @@ (define-module (gnu packages linux-initrd) #:use-module (guix utils) #:use-module (guix licenses) + #:use-module (guix build-system) + #:use-module ((guix derivations) + #:select (imported-modules compiled-modules %guile-for-build)) #:use-module (gnu packages) #:use-module (gnu packages cpio) #:use-module (gnu packages compression) #:use-module (gnu packages linux) + #:use-module (gnu packages guile) #:use-module ((gnu packages make-bootstrap) #:select (%guile-static-stripped)) #:use-module (guix packages) @@ -38,6 +42,49 @@ ;;; Code: +(define-syntax-rule (raw-build-system (store system name inputs) body ...) + "Lift BODY to a package build system." + ;; TODO: Generalize. + (build-system + (name "raw") + (description "Raw build system") + (build (lambda* (store name source inputs #:key system #:allow-other-keys) + (parameterize ((%guile-for-build (package-derivation store + guile-2.0))) + body ...))))) + +(define (module-package modules) + "Return a package that contains all of MODULES, a list of Guile module +names." + (package + (name "guile-modules") + (version "0") + (source #f) + (build-system (raw-build-system (store system name inputs) + (imported-modules store modules + #:name name + #:system system))) + (synopsis "Set of Guile modules") + (description synopsis) + (license gpl3+) + (home-page "http://www.gnu.org/software/guix/"))) + +(define (compiled-module-package modules) + "Return a package that contains the .go files corresponding to MODULES, a +list of Guile module names." + (package + (name "guile-compiled-modules") + (version "0") + (source #f) + (build-system (raw-build-system (store system name inputs) + (compiled-modules store modules + #:name name + #:system system))) + (synopsis "Set of compiled Guile modules") + (description synopsis) + (license gpl3+) + (home-page "http://www.gnu.org/software/guix/"))) + (define* (expression->initrd exp #:key (guile %guile-static-stripped) @@ -45,12 +92,13 @@ (gzip gzip) (name "guile-initrd") (system (%current-system)) + (modules '()) (linux #f) (linux-modules '())) "Return a package that contains a Linux initrd (a gzipped cpio archive) containing GUILE and that evaluates EXP upon booting. LINUX-MODULES is a list -of `.ko' file names to be copied from LINUX into the initrd." - ;; TODO: Add a `modules' parameter. +of `.ko' file names to be copied from LINUX into the initrd. MODULES is a +list of Guile module names to be embedded in the initrd." ;; General Linux overview in `Documentation/early-userspace/README' and ;; `Documentation/filesystems/ramfs-rootfs-initramfs.txt'. @@ -67,12 +115,22 @@ of `.ko' file names to be copied from LINUX into the initrd." (rnrs bytevectors) ((system foreign) #:select (sizeof))) - (let ((guile (assoc-ref %build-inputs "guile")) - (cpio (string-append (assoc-ref %build-inputs "cpio") - "/bin/cpio")) - (gzip (string-append (assoc-ref %build-inputs "gzip") - "/bin/gzip")) - (out (assoc-ref %outputs "out"))) + (let ((guile (assoc-ref %build-inputs "guile")) + (cpio (string-append (assoc-ref %build-inputs "cpio") + "/bin/cpio")) + (gzip (string-append (assoc-ref %build-inputs "gzip") + "/bin/gzip")) + (modules (assoc-ref %build-inputs "modules")) + (gos (assoc-ref %build-inputs "modules/compiled")) + (scm-dir (string-append "share/guile/" (effective-version))) + (go-dir (format #f ".cache/guile/ccache/~a-~a-~a-~a" + (effective-version) + (if (eq? (native-endianness) (endianness little)) + "LE" + "BE") + (sizeof '*) + (effective-version))) + (out (assoc-ref %outputs "out"))) (mkdir out) (mkdir "contents") (with-directory-excursion "contents" @@ -84,19 +142,23 @@ of `.ko' file names to be copied from LINUX into the initrd." (chmod "init" #o555) (chmod "bin/guile" #o555) + ;; Copy Guile modules. + (chmod scm-dir #o777) + (copy-recursively modules scm-dir + #:follow-symlinks? #t) + (copy-recursively gos (string-append "lib/guile/" + (effective-version) "/ccache") + #:follow-symlinks? #t) + ;; Compile `init'. - (let ((go-dir (format #f ".cache/guile/ccache/~a-~a-~a-~a" - (effective-version) - (if (eq? (native-endianness) (endianness little)) - "LE" - "BE") - (sizeof '*) - (effective-version)))) - (mkdir-p go-dir) - (compile-file "init" - #:opts %auto-compilation-options - #:output-file (string-append go-dir "/init.go"))) + (mkdir-p go-dir) + (set! %load-path (cons modules %load-path)) + (set! %load-compiled-path (cons gos %load-compiled-path)) + (compile-file "init" + #:opts %auto-compilation-options + #:output-file (string-append go-dir "/init.go")) + ;; Copy Linux modules. (let* ((linux (assoc-ref %build-inputs "linux")) (module-dir (and linux (string-append linux "/lib/modules")))) @@ -161,6 +223,8 @@ of `.ko' file names to be copied from LINUX into the initrd." (inputs `(("guile" ,guile) ("cpio" ,cpio) ("gzip" ,gzip) + ("modules" ,(module-package modules)) + ("modules/compiled" ,(compiled-module-package modules)) ,@(if linux `(("linux" ,linux)) '()))) -- cgit v1.2.3