From 23e525e1097f6f993aecd4f0b14d518546b876a4 Mon Sep 17 00:00:00 2001
From: Mathieu Othacehe <m.othacehe@gmail.com>
Date: Mon, 10 Apr 2017 19:18:13 +0200
Subject: [PATCH] syscalls: Add load-linux-module.
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* guix/build/syscalls.scm (load-linux-module): New procedure. Reimplemented
from guile-linux-syscalls.patch.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
---
 guix/build/syscalls.scm | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/guix/build/syscalls.scm b/guix/build/syscalls.scm
index d1f3cd65c4..0529c228a5 100644
--- a/guix/build/syscalls.scm
+++ b/guix/build/syscalls.scm
@@ -578,6 +578,18 @@ constants from <sys/mount.h>."
                (list cmd (strerror err))
                (list err))))))
 
+(define-as-needed (load-linux-module data #:optional (options ""))
+  (let ((proc (syscall->procedure int "init_module"
+                                  (list '* unsigned-long '*))))
+    (let-values (((ret err)
+                  (proc (bytevector->pointer data)
+                        (bytevector-length data)
+                        (string->pointer options))))
+      (unless (zero? ret)
+        (throw 'system-error "load-linux-module" "~A"
+               (list (strerror err))
+               (list err))))))
+
 (define (kernel? pid)
   "Return #t if PID designates a \"kernel thread\" rather than a normal
 user-land process."