diff options
Diffstat (limited to 'gnu/system/linux-initrd.scm')
| -rw-r--r-- | gnu/system/linux-initrd.scm | 152 |
1 files changed, 43 insertions, 109 deletions
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm index 627d17bac2..93f751b757 100644 --- a/gnu/system/linux-initrd.scm +++ b/gnu/system/linux-initrd.scm @@ -34,6 +34,7 @@ #:use-module (ice-9 match) #:use-module (ice-9 regex) #:use-module (srfi srfi-1) + #:use-module (srfi srfi-26) #:export (expression->initrd base-initrd)) @@ -53,106 +54,37 @@ (gzip gzip) (name "guile-initrd") (system (%current-system)) - (modules '()) - (to-copy '()) - (linux #f) - (linux-modules '())) + (modules '())) "Return a derivation that builds a Linux initrd (a gzipped cpio archive) -containing GUILE and that evaluates EXP, a G-expression, upon booting. +containing GUILE and that evaluates EXP, a G-expression, upon booting. All +the derivations referenced by EXP are automatically copied to the initrd. -LINUX-MODULES is a list of '.ko' file names to be copied from LINUX into the -initrd. TO-COPY is a list of additional derivations or packages to copy to -the initrd. MODULES is a list of Guile module names to be embedded in 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'. - (define graph-files - (unfold-right zero? - number->string - 1- - (length to-copy))) - - (mlet %store-monad ((source (imported-modules modules)) - (compiled (compiled-modules modules)) - (module-dir (flat-linux-module-directory linux - linux-modules))) + (mlet %store-monad ((init (gexp->script "init" exp + #:modules modules + #:guile guile))) (define builder - ;; TODO: Move most of this code to (gnu build linux-initrd). #~(begin - (use-modules (gnu build linux-initrd) - (guix build utils) - (guix build store-copy) - (ice-9 pretty-print) - (ice-9 popen) - (ice-9 match) - (ice-9 ftw) - (srfi srfi-26) - (system base compile) - (rnrs bytevectors) - ((system foreign) #:select (sizeof))) - - (let ((modules #$source) - (gos #$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)))) - (mkdir #$output) - (mkdir "contents") - - (with-directory-excursion "contents" - (copy-recursively #$guile ".") - (call-with-output-file "init" - (lambda (p) - (format p "#!/bin/guile -ds~%!#~%" #$guile) - (pretty-print '#$exp p))) - (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'. - (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")) + (use-modules (gnu build linux-initrd)) - ;; Copy Linux modules. - (mkdir "modules") - (copy-recursively #$module-dir "modules") - - ;; Populate the initrd's store. - (with-directory-excursion ".." - (populate-store '#$graph-files "contents")) - - ;; Reset the timestamps of all the files that will make it in the - ;; initrd. - (for-each (cut utime <> 0 0 0 0) - (find-files "." ".*")) - - (write-cpio-archive (string-append #$output "/initrd") "." - #:cpio (string-append #$cpio "/bin/cpio") - #:gzip (string-append #$gzip "/bin/gzip")))))) + (mkdir #$output) + (build-initrd (string-append #$output "/initrd") + #:guile #$guile + #:init #$init + ;; Copy everything INIT refers to into the initrd. + #:references-graphs '("closure") + #:cpio (string-append #$cpio "/bin/cpio") + #:gzip (string-append #$gzip "/bin/gzip")))) (gexp->derivation name builder #:modules '((guix build utils) (guix build store-copy) (gnu build linux-initrd)) - #:references-graphs (zip graph-files to-copy)))) + #:references-graphs `(("closure" ,init))))) (define (flat-linux-module-directory linux modules) "Return a flat directory containing the Linux kernel modules listed in @@ -199,6 +131,7 @@ initrd code." volatile-root? (extra-modules '()) guile-modules-in-chroot?) + ;; TODO: Support boot-time device mappings. "Return a monadic derivation that builds a generic initrd. FILE-SYSTEMS is a list of file-systems to be mounted by the initrd, possibly in addition to the root file system specified on the kernel command line via '--root'. @@ -264,28 +197,29 @@ exception and backtrace!)." (list unionfs-fuse/static) '()))) - (expression->initrd - #~(begin - (use-modules (gnu build linux-boot) - (guix build utils) - (srfi srfi-26)) - - (with-output-to-port (%make-void-port "w") - (lambda () - (set-path-environment-variable "PATH" '("bin" "sbin") - '#$helper-packages))) - - (boot-system #:mounts '#$(map file-system->spec file-systems) - #:linux-modules '#$linux-modules - #:qemu-guest-networking? #$qemu-networking? - #:guile-modules-in-chroot? '#$guile-modules-in-chroot? - #:volatile-root? '#$volatile-root?)) - #:name "base-initrd" - #:modules '((guix build utils) - (gnu build linux-boot) - (gnu build file-systems)) - #:to-copy helper-packages - #:linux linux-libre - #:linux-modules linux-modules)) + (mlet %store-monad ((kodir (flat-linux-module-directory linux-libre + linux-modules))) + (expression->initrd + #~(begin + (use-modules (gnu build linux-boot) + (guix build utils) + (srfi srfi-26)) + + (with-output-to-port (%make-void-port "w") + (lambda () + (set-path-environment-variable "PATH" '("bin" "sbin") + '#$helper-packages))) + + (boot-system #:mounts '#$(map file-system->spec file-systems) + #:linux-modules (map (lambda (file) + (string-append #$kodir "/" file)) + '#$linux-modules) + #:qemu-guest-networking? #$qemu-networking? + #:guile-modules-in-chroot? '#$guile-modules-in-chroot? + #:volatile-root? '#$volatile-root?)) + #:name "base-initrd" + #:modules '((guix build utils) + (gnu build linux-boot) + (gnu build file-systems))))) ;;; linux-initrd.scm ends here |