diff options
author | Ludovic Courtès <ludo@gnu.org> | 2015-10-29 22:20:57 +0100 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2015-10-29 23:03:08 +0100 |
commit | a241a7ac65358628aecd4e8d4905cc3b66aa894c (patch) | |
tree | c5f96a720ffd079a252f0b20cbe48ec3eefcacf5 /gnu/services.scm | |
parent | 12f92e38d7b7add735b0cfe9a09a27c99d6f9977 (diff) | |
download | guix-a241a7ac65358628aecd4e8d4905cc3b66aa894c.tar guix-a241a7ac65358628aecd4e8d4905cc3b66aa894c.tar.gz |
services: Add 'linux-bare-metal-service-type'.
* gnu/services.scm (modprobe-wrapper): Remove.
(activation-script): Do not use it. Remove calls to
'activate-modprobe' and 'activate-ptrace-attach' in gexp.
(%modprobe-wrapper, %linux-kernel-activation,
linux-bare-metal-service-type, %linux-bare-metal-service): New
variables.
* gnu/system.scm (essential-services): Add %LINUX-BARE-METAL-SERVICE to
the list, unless CONTAINER? is true.
Diffstat (limited to 'gnu/services.scm')
-rw-r--r-- | gnu/services.scm | 59 |
1 files changed, 37 insertions, 22 deletions
diff --git a/gnu/services.scm b/gnu/services.scm index 818252386f..c8a2a2604f 100644 --- a/gnu/services.scm +++ b/gnu/services.scm @@ -63,6 +63,7 @@ boot-service-type activation-service-type activation-service->script + %linux-bare-metal-service etc-service-type etc-directory setuid-program-service-type @@ -244,20 +245,6 @@ file." (union-build #$output '#$things)) #:modules '((guix build union)))))) -(define (modprobe-wrapper) - "Return a wrapper for the 'modprobe' command that knows where modules live. - -This wrapper is typically invoked by the Linux kernel ('call_modprobe', in -kernel/kmod.c), a situation where the 'LINUX_MODULE_DIRECTORY' environment -variable is not set---hence the need for this wrapper." - (let ((modprobe "/run/current-system/profile/bin/modprobe")) - (gexp->script "modprobe" - #~(begin - (setenv "LINUX_MODULE_DIRECTORY" - "/run/booted-system/kernel/lib/modules") - (apply execl #$modprobe - (cons #$modprobe (cdr (command-line)))))))) - (define* (activation-service->script service) "Return as a monadic value the activation script for SERVICE, a service of ACTIVATION-SCRIPT-TYPE." @@ -282,8 +269,7 @@ ACTIVATION-SCRIPT-TYPE." (mlet* %store-monad ((actions (service-activations)) (modules (imported-modules %modules)) - (compiled (compiled-modules %modules)) - (modprobe (modprobe-wrapper))) + (compiled (compiled-modules %modules))) (gexp->file "activate" #~(begin (eval-when (expand load eval) @@ -298,12 +284,6 @@ ACTIVATION-SCRIPT-TYPE." (activate-/bin/sh (string-append #$(canonical-package bash) "/bin/sh")) - ;; Tell the kernel to use our 'modprobe' command. - (activate-modprobe #$modprobe) - - ;; Let users debug their own processes! - (activate-ptrace-attach) - ;; Run the services' activation snippets. ;; TODO: Use 'load-compiled'. (for-each primitive-load '#$actions) @@ -329,6 +309,41 @@ ACTIVATION-SCRIPT-TYPE." ;; receives. (service activation-service-type #t)) +(define %modprobe-wrapper + ;; Wrapper for the 'modprobe' command that knows where modules live. + ;; + ;; This wrapper is typically invoked by the Linux kernel ('call_modprobe', + ;; in kernel/kmod.c), a situation where the 'LINUX_MODULE_DIRECTORY' + ;; environment variable is not set---hence the need for this wrapper. + (let ((modprobe "/run/current-system/profile/bin/modprobe")) + (program-file "modprobe" + #~(begin + (setenv "LINUX_MODULE_DIRECTORY" + "/run/booted-system/kernel/lib/modules") + (apply execl #$modprobe + (cons #$modprobe (cdr (command-line)))))))) + +(define %linux-kernel-activation + ;; Activation of the Linux kernel running on the bare metal (as opposed to + ;; running in a container.) + #~(begin + ;; Tell the kernel to use our 'modprobe' command. + (activate-modprobe #$%modprobe-wrapper) + + ;; Let users debug their own processes! + (activate-ptrace-attach))) + +(define linux-bare-metal-service-type + (service-type (name 'linux-bare-metal) + (extensions + (list (service-extension activation-service-type + (const %linux-kernel-activation)))))) + +(define %linux-bare-metal-service + ;; The service that does things that are needed on the "bare metal", but not + ;; necessary or impossible in a container. + (service linux-bare-metal-service-type #f)) + (define (etc-directory service) "Return the directory for SERVICE, a service of type ETC-SERVICE-TYPE." (files->etc-directory (service-parameters service))) |