From: Danny Milosavljevic <dannym@scratchpost.org>
To: 30604@debbugs.gnu.org
Subject: [bug#30604] [PATCH v8 7/7] linux-initrd: Factorize %modprobe and flat-linux-module-directory.
Date: Sat, 3 Mar 2018 14:55:33 +0100 [thread overview]
Message-ID: <20180303135533.6112-8-dannym@scratchpost.org> (raw)
In-Reply-To: <20180303135533.6112-1-dannym@scratchpost.org>
* gnu/build/linux-modules.scm (module-aliases->module-file-names): New
procedure.
* gnu/system/linux-initrd.scm (%modprobe): Use
module-aliases->module-file-names.
(flat-linux-module-directory): Use module-aliases->module-file-names.
---
gnu/build/linux-modules.scm | 56 +++++++++++++++++++++-
gnu/system/linux-initrd.scm | 110 ++++++++++++++++++--------------------------
2 files changed, 100 insertions(+), 66 deletions(-)
diff --git a/gnu/build/linux-modules.scm b/gnu/build/linux-modules.scm
index af217c974..44059ad93 100644
--- a/gnu/build/linux-modules.scm
+++ b/gnu/build/linux-modules.scm
@@ -21,6 +21,7 @@
#:use-module (guix elf)
#:use-module (guix glob)
#:use-module (guix build syscalls)
+ #:use-module (guix build utils) ; find-files
#:use-module (rnrs io ports)
#:use-module (rnrs bytevectors)
#:use-module (srfi srfi-1)
@@ -28,9 +29,12 @@
#:use-module (ice-9 vlist)
#:use-module (ice-9 match)
#:use-module (ice-9 rdelim)
+ #:use-module (ice-9 regex)
+ #:use-module (ice-9 ftw)
#:export (dot-ko
ensure-dot-ko
module-aliases
+ module-aliases->module-file-names
module-dependencies
recursive-module-dependencies
modules-loaded
@@ -385,7 +389,7 @@ ALIAS is a string like \"scsi:t-0x00\" as returned by
(define (install-module-files module-files output)
"Install MODULE-FILES to OUTPUT.
-Precondition: OUTPUT is an empty directory."
+Precondition: OUTPUT is an empty directory except for \"modules.builtin\"."
(let ((aliases
(map (lambda (module-file-name)
(format #t "copying '~a'...~%" module-file-name)
@@ -431,4 +435,54 @@ Precondition: OUTPUT is an empty directory."
(_ #f))
aliases))))))
+(define (module-aliases->module-file-names linux aliases)
+ "Resolve ALIASES to module file names, including their dependencies (which will appear
+first). Each alias will map to a list of module file names.
+LINUX is the directory containing \"lib\"."
+ (define (string->regexp str)
+ ;; Return a regexp that matches STR exactly.
+ (string-append "^" (regexp-quote str) "$"))
+
+ (define module-dir
+ (string-append linux "/lib/modules"))
+
+ (define (find-only-entry directory)
+ (match (scandir directory)
+ (("." ".." basename)
+ (string-append directory "/" basename))))
+
+ (define linux-release-module-directory
+ (find-only-entry module-dir))
+
+ (define known-module-aliases*
+ (known-module-aliases
+ (string-append linux-release-module-directory
+ "/modules.alias")))
+ (define (resolve-alias alias)
+ "If possible, resolve ALIAS to a list of module names.
+Otherwise return just ALIAS as possible module names."
+ (match (delete-duplicates (matching-modules alias
+ known-module-aliases*))
+ (()
+ (list alias))
+ (items
+ items)))
+
+ (define (lookup module)
+ (let ((name (ensure-dot-ko module)))
+ (match (find-files module-dir (string->regexp name))
+ ((file)
+ file)
+ (()
+ (error "module not found" name module-dir))
+ ((_ ...)
+ (error "several modules by that name"
+ name module-dir)))))
+ (append-map (lambda (alias)
+ (let ((modules (map lookup (resolve-alias alias))))
+ (append (recursive-module-dependencies modules
+ #:lookup-module
+ lookup) modules)))
+ aliases))
+
;;; linux-modules.scm ends here
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm
index 8050ac47e..dc826c63e 100644
--- a/gnu/system/linux-initrd.scm
+++ b/gnu/system/linux-initrd.scm
@@ -58,35 +58,14 @@
(define* (%modprobe linux-module-directory #:key
(guile %guile-static-stripped))
+ "Minimal implementation of modprobe for our initrd.
+LINUX-MODULE-DIRECTORY is the directory that contains \"lib\"."
(program-file "modprobe"
(with-imported-modules (source-module-closure
'((gnu build linux-modules)))
#~(begin
(use-modules (gnu build linux-modules) (ice-9 getopt-long)
- (ice-9 match) (srfi srfi-1) (ice-9 ftw))
- (define (find-only-entry directory)
- (match (scandir directory)
- (("." ".." basename)
- (string-append directory "/" basename))))
- (define (resolve-alias alias)
- (let* ((linux-release-module-directory
- (find-only-entry (string-append "/lib/modules"))))
- (match (delete-duplicates (matching-modules alias
- (known-module-aliases
- (string-append linux-release-module-directory
- "/modules.alias"))))
- (()
- (error "no alias by that name" alias))
- (items
- items))))
- (define (lookup-module module)
- (let* ((linux-release-module-directory
- (find-only-entry (string-append "/lib/modules")))
- (file-name (string-append linux-release-module-directory
- "/" (ensure-dot-ko module))))
- (if (file-exists? file-name)
- file-name
- (error "no module file found for module" module))))
+ (ice-9 match) (srfi srfi-1))
(define option-spec
'((quiet (single-char #\q) (value #f))))
(define options
@@ -98,22 +77,31 @@
(for-each (match-lambda
(('quiet . #t)
#f)
- ((() modules ...)
- (for-each (lambda (alias)
- (catch #t
- (lambda ()
- (let ((modules (resolve-alias alias))) (for-each (lambda (module)
- (load-linux-module*
- (lookup-module module)
- #:lookup-module
- lookup-module))
- modules)))
- (lambda (key . args)
- (display (cons* key args)
- (current-error-port))
- (newline (current-error-port))
- (set! exit-status 1))))
- modules)))
+ ((() aliases ...)
+ (catch #t
+ (lambda ()
+ (let ((module-file-names
+ (module-aliases->module-file-names
+ #$linux-module-directory aliases)))
+ (for-each (lambda (name)
+ (catch 'system-error
+ (lambda ()
+ (when (not (load-linux-module* name
+ #:recursive?
+ #f))
+ (set! exit-status 1)))
+ (lambda (key . args)
+ (when (not (= EEXIST
+ (system-error-errno
+ (cons key args))))
+ (print-exception (current-error-port)
+ #f key args)
+ (set! exit-status 1)))))
+ module-file-names)))
+ (lambda (key . args)
+ (print-exception (current-error-port)
+ #f key args)
+ (set! exit-status 1)))))
options)
(exit exit-status))))
#:guile guile))
@@ -173,17 +161,17 @@ the derivations referenced by EXP are automatically copied to the initrd."
#:references-graphs `(("init-closure" ,init)
("modprobe-closure" ,modprobe))))
-(define (flat-linux-module-directory linux modules)
- "Return a flat directory containing the Linux kernel modules listed in
-MODULES and taken from LINUX."
+(define (flat-linux-module-directory linux aliases)
+ "Return a flat directory containing the Linux kernel modules resolved by
+ALIASES and taken from LINUX."
(define build-exp
(with-imported-modules (source-module-closure
'((guix build utils)
(gnu build linux-modules)))
#~(begin
- (use-modules (ice-9 match) (ice-9 regex) (ice-9 ftw)
+ (use-modules (ice-9 match) (ice-9 ftw)
(srfi srfi-1)
- (guix build utils)
+ (guix build utils) ; TODO: Remove
(gnu build linux-modules))
(define (string->regexp str)
@@ -193,33 +181,25 @@ MODULES and taken from LINUX."
(define module-dir
(string-append #$linux "/lib/modules"))
- (define (lookup module)
- (let ((name (ensure-dot-ko module)))
- (match (find-files module-dir (string->regexp name))
- ((file)
- file)
- (()
- (error "module not found" name module-dir))
- ((_ ...)
- (error "several modules by that name"
- name module-dir)))))
+ (define (find-only-entry directory)
+ (match (scandir directory)
+ (("." ".." basename)
+ (string-append directory "/" basename))))
+
+ (define linux-release-module-directory
+ (find-only-entry module-dir))
(define modules
- (let ((modules (map lookup '#$modules)))
- (append modules
- (recursive-module-dependencies modules
- #:lookup-module lookup))))
+ (module-aliases->module-file-names #$linux '#$aliases))
(define version
- (match
- (filter
- (lambda (name)
- (not (string-prefix? "." name)))
- (scandir module-dir))
- ((item) item)))
+ (basename linux-release-module-directory))
(let ((output (string-append #$output "/lib/modules/" version)))
(mkdir-p output)
+ (install-file
+ (string-append linux-release-module-directory "/modules.builtin")
+ output)
(install-module-files (delete-duplicates modules) output))
#t)))
(computed-file "linux-modules" build-exp))
next prev parent reply other threads:[~2018-03-03 13:56 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-25 11:45 [bug#30604] [PATCH 0/4] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-02-25 11:48 ` [bug#30604] [PATCH 1/4] gnu: kmod: Split off kmod-minimal Danny Milosavljevic
2018-02-25 11:48 ` [bug#30604] [PATCH 2/4] gnu: Add kmod-minimal-static Danny Milosavljevic
2018-02-25 11:48 ` [bug#30604] [PATCH 3/4] linux-initrd: Add kmod Danny Milosavljevic
2018-02-25 14:05 ` Mathieu Othacehe
2018-02-25 15:07 ` Danny Milosavljevic
2018-02-26 11:51 ` Mathieu Othacehe
2018-02-25 11:48 ` [bug#30604] [PATCH 4/4] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-02-26 1:10 ` [bug#30604] [PATCH 1/4] gnu: kmod: Split off kmod-minimal Marius Bakke
2018-02-26 3:50 ` [bug#30604] [PATCH v2 0/6] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 1/6] gnu: kmod: Split off kmod-minimal Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 2/6] gnu: Add kmod-minimal-static Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 3/6] linux-initrd: Add kmod Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 4/6] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 5/6] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-02-26 3:50 ` [bug#30604] [PATCH v2 6/6] vm: Make the virtio-blk is uniquely identifyable in /sys Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 0/6] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 1/6] gnu: kmod: Split off kmod-minimal Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 2/6] gnu: Add kmod-minimal-static Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 3/6] linux-initrd: Add kmod Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 4/6] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-02-27 14:26 ` Ludovic Courtès
2018-02-26 4:06 ` [bug#30604] [PATCH v3 5/6] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-02-26 4:06 ` [bug#30604] [PATCH v3 6/6] vm: Make the virtio-blk is uniquely identifyable in /sys Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 0/7] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 1/7] gnu: kmod: Split off kmod-minimal Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 2/7] gnu: Add kmod-minimal-static Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 3/7] linux-initrd: Add kmod Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 4/7] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 5/7] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 6/7] vm: Make the virtio-blk uniquely identifyable in /sys Danny Milosavljevic
2018-02-27 11:26 ` [bug#30604] [PATCH v4 7/7] linux-boot: Call make-static-device-nodes much earlier Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 0/7] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 1/7] gnu: kmod: Split off kmod-minimal Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 2/7] gnu: Add kmod-minimal-static Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 3/7] linux-initrd: Add kmod Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 4/7] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 5/7] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 6/7] vm: Make the virtio-blk is uniquely identifyable in /sys Danny Milosavljevic
2018-02-27 15:50 ` [bug#30604] [PATCH v5 7/7] linux-boot: Call make-static-device-nodes much earlier Danny Milosavljevic
2018-03-02 14:16 ` [bug#30604] [PATCH v6 0/6] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 1/6] linux-modules: Add module-aliases Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 2/6] linux-modules: Add install-modules Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 3/6] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 4/6] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 5/6] vm: Make the virtio-blk uniquely identifiable in /sys Danny Milosavljevic
2018-03-02 14:17 ` [bug#30604] [PATCH v6 6/6] linux-initrd: Provide modprobe to the initrd Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 0/6] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 1/6] linux-modules: Add module-aliases Danny Milosavljevic
2018-03-02 16:47 ` Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 2/6] linux-modules: Add install-modules Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 3/6] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-03-02 16:47 ` Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 4/6] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 5/6] vm: Make the virtio-blk uniquely identifiable in /sys Danny Milosavljevic
2018-03-02 15:34 ` [bug#30604] [PATCH v7 6/6] linux-initrd: Provide modprobe to the initrd Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 0/7] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 1/7] linux-modules: Add module-aliases Danny Milosavljevic
2018-03-03 21:58 ` Ludovic Courtès
2018-03-03 13:55 ` [bug#30604] [PATCH v8 2/7] linux-modules: Add install-modules Danny Milosavljevic
2018-03-03 15:32 ` Danny Milosavljevic
2018-03-03 22:07 ` Ludovic Courtès
2018-03-04 12:45 ` Danny Milosavljevic
2018-03-04 12:53 ` Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 3/7] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-03-03 22:48 ` Ludovic Courtès
2018-03-04 1:06 ` Danny Milosavljevic
2018-03-04 1:54 ` Danny Milosavljevic
2018-03-04 12:34 ` Danny Milosavljevic
2018-03-09 22:06 ` Ludovic Courtès
2018-03-09 22:13 ` Danny Milosavljevic
2018-03-09 22:19 ` Danny Milosavljevic
2018-03-09 22:44 ` Danny Milosavljevic
2018-03-12 12:38 ` Ludovic Courtès
2018-03-12 12:39 ` [bug#30604] [PATCH v10 1/6] linux-modules: Add "modules.alias" writer Ludovic Courtès
2018-03-12 12:39 ` [bug#30604] [PATCH v10 2/6] linux-modules: Add 'load-linux-modules-from-directory' Ludovic Courtès
2018-03-12 19:26 ` Danny Milosavljevic
2018-03-12 12:39 ` [bug#30604] [PATCH v10 3/6] linux-modules: Add 'load-needed-linux-modules' Ludovic Courtès
2018-03-12 19:40 ` Danny Milosavljevic
2018-03-12 21:10 ` Ludovic Courtès
2018-03-12 12:39 ` [bug#30604] [PATCH v10 4/6] vm: Make the virtio-blk uniquely identifiable in /sys Ludovic Courtès
2018-03-12 12:39 ` [bug#30604] [PATCH v10 5/6] linux-initrd: Provide our own 'modprobe' program Ludovic Courtès
2018-03-12 20:09 ` Danny Milosavljevic
2018-03-12 21:12 ` Danny Milosavljevic
2018-03-13 8:54 ` Ludovic Courtès
2018-03-12 22:14 ` Ludovic Courtès
2018-03-12 22:15 ` [bug#30604] [PATCH v11 1/6] linux-modules: Add "modules.alias" writer Ludovic Courtès
2018-03-12 22:15 ` [bug#30604] [PATCH v11 2/6] linux-modules: Add 'load-linux-modules-from-directory' Ludovic Courtès
2018-03-12 22:48 ` Danny Milosavljevic
2018-03-12 22:15 ` [bug#30604] [PATCH v11 3/6] linux-modules: Add 'load-needed-linux-modules' Ludovic Courtès
2018-03-12 23:00 ` Danny Milosavljevic
2018-03-13 8:55 ` Ludovic Courtès
2018-03-12 22:15 ` [bug#30604] [PATCH v11 4/6] vm: Make the virtio-blk uniquely identifiable in /sys Ludovic Courtès
2018-03-12 22:49 ` Danny Milosavljevic
2018-03-12 22:15 ` [bug#30604] [PATCH v11 5/6] linux-initrd: Provide our own 'modprobe' program Ludovic Courtès
2018-03-13 8:50 ` Ludovic Courtès
2018-03-13 9:28 ` Ludovic Courtès
2018-03-13 12:28 ` Danny Milosavljevic
2018-03-12 22:15 ` [bug#30604] [PATCH v11 6/6] linux-modules: Add "modules.devname" writer Ludovic Courtès
2018-03-12 22:55 ` Danny Milosavljevic
2018-03-13 8:56 ` Ludovic Courtès
2018-03-12 22:48 ` [bug#30604] [PATCH v11 1/6] linux-modules: Add "modules.alias" writer Danny Milosavljevic
2018-03-13 9:27 ` [bug#30604] [PATCH v10 5/6] linux-initrd: Provide our own 'modprobe' program Danny Milosavljevic
2018-03-13 10:51 ` Ludovic Courtès
2018-03-13 12:05 ` Danny Milosavljevic
2018-03-13 19:17 ` Danny Milosavljevic
2018-03-12 12:39 ` [bug#30604] [PATCH v10 6/6] linux-modules: Add "modules.devname" writer Ludovic Courtès
2018-03-12 19:54 ` [bug#30604] [PATCH v10 1/6] linux-modules: Add "modules.alias" writer Danny Milosavljevic
2018-03-12 21:13 ` Ludovic Courtès
2018-03-09 22:36 ` [bug#30604] [PATCH v8 3/7] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 4/7] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 5/7] vm: Make the virtio-blk uniquely identifiable in /sys Danny Milosavljevic
2018-03-03 13:55 ` [bug#30604] [PATCH v8 6/7] linux-initrd: Provide modprobe to the initrd Danny Milosavljevic
2018-03-03 13:55 ` Danny Milosavljevic [this message]
2018-03-03 18:01 ` [bug#30604] [PATCH v8 7/7] linux-initrd: Factorize %modprobe and flat-linux-module-directory Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 0/7] Load Linux module only when supported hardware is present Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 1/7] linux-modules: Add "modules.devname" and "modules.alias" writer Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 2/7] linux-modules: Add module-aliases->module-file-names Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 3/7] linux-initrd: Provide pure-Guile modprobe Danny Milosavljevic
2018-03-11 20:24 ` Danny Milosavljevic
2018-03-12 14:45 ` Ludovic Courtès
2018-03-12 17:51 ` Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 4/7] linux-boot: Load kernel modules only when the hardware is present Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 5/7] vm: Allow qemu-image builder to load Linux kernel modules Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 6/7] vm: Make the virtio-blk uniquely identifiable in /sys Danny Milosavljevic
2018-03-04 1:09 ` [bug#30604] [PATCH v9 7/7] linux-initrd: Use module-aliases->module-file-names, too Danny Milosavljevic
2018-03-09 22:26 ` Danny Milosavljevic
2018-03-18 15:03 ` [bug#30604] Keyboard detection before ‘cryptsetup’ runs Ludovic Courtès
2018-03-23 13:02 ` Danny Milosavljevic
2018-03-23 15:07 ` Danny Milosavljevic
2018-03-24 17:07 ` Ludovic Courtès
2018-03-24 17:12 ` Ludovic Courtès
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