Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a module that looks up a "miniroot" section within its ELF object,

Browse Source 
and passes that to md_root_setconf(). The file system image can be added
with objcopy after the module is built.
This commit is contained in:
ad 2008-05-02 13:03:58 +00:00
parent 1253c2cad4
commit 8c94e76aa9
2 changed files with 65 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/modules/miniroot/Makefile Normal file
View File

@ -0,0 +1,6 @@
# $NetBSD: Makefile,v 1.1 2008/05/02 13:03:58 ad Exp $
KMOD= miniroot
SRCS= miniroot.c
.include <bsd.kmod.mk>

59
sys/modules/miniroot/miniroot.c Normal file
View File

@ -0,0 +1,59 @@
/* $NetBSD: miniroot.c,v 1.1 2008/05/02 13:03:58 ad Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: miniroot.c,v 1.1 2008/05/02 13:03:58 ad Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <dev/md.h>
MODULE(MODULE_CLASS_MISC, miniroot, NULL);
static int
miniroot_modcmd(modcmd_t cmd, void *arg)
{
void *addr;
int error;
size_t size;
switch (cmd) {
case MODULE_CMD_INIT:
error = module_find_section("miniroot", &addr, &size);
if (error == 0 && size != 0)
md_root_setconf(addr, size);
break;
default:
return ENOTTY;
}
return 0;
}