genode

mirror of https://github.com/genodelabs/genode.git synced 2024-12-20 22:23:16 +00:00

History

Emery Hemingway 2f1db06deb rump_fs/fuse_fs/lx_fs/ram_fs: symlink fixup Allow symlinks to be passed to the read and write file system utilities. Disallow writes to symlinks with offsets in file system servers, this is to ensure that writing the target of a symlink is an atomic operation. Fixes #1604		2015-07-21 09:40:19 +02:00
..
include	base: const-correctness of Allocator interface	2015-04-17 16:13:22 +02:00
lib	arm: enable cpu cortex_a15 compiler flag	2015-02-27 11:48:04 +01:00
patches	dde_rump: don't build non-Genode shared libraries	2015-05-26 09:39:48 +02:00
ports	dde_rump: don't build non-Genode shared libraries	2015-05-26 09:39:48 +02:00
run	autopilot: adapt runscripts to new run tool	2015-01-26 12:28:41 +01:00
src	rump_fs/fuse_fs/lx_fs/ram_fs: symlink fixup	2015-07-21 09:40:19 +02:00
Makefile	Enable hash checks for ports mechanism	2014-05-27 13:45:03 +02:00
README	Move repositories to 'repos/' subdirectory	2014-05-14 16:08:00 +02:00

README

                             ================================
                             Genode's Rump Kernel kernel port
                             ================================

This repository contains the Genode version of the [http://wiki.netbsd.org/rumpkernel/ - rump kernel].
The kernel is currently used to gain file-system access from within Genode. In
order to achieve that, a Genode file-system server is located at
_src/server/rump_fs_. For accessing the server through the libc, the _libc_fs_
plugin can be facilitated, which is available in the _libports_ repository.

Building instructions
#####################

In order to build the file-system server, issue

! make prepare

from the directory this file is contained in.


Add

! REPOSITORIES += $(GENODE_DIR)/repos/dde_rump

to your _etc/build.conf_ file of you build directory.

Finally,

! make server/rumps_fs

called from your build directory will build the server. You may also specify

! make run/rump_ext2

to run a simple test scenario.


Configuration
#############

Here is an example snippet that configures the server:

!<start name="rump_fs">
!  <resource name="RAM" quantum="8M" />
!  <provides><service name="File_system"/></provides>
!  <config fs="ext2fs"><policy label="" root="/" writeable="yes"/></config>
!</start>

The server is looking for a service that provides a Genode block session. If
there is more than one block session in the system, the block session must be
routed to the right block-session server. The value of the _fs_ attribute of
the _config_ node can be one of the following: _ext2fs_ for EXT2, _cd9660_ for
ISO-9660, or _msdos_ for FAT file-system support. _root_ defines the directory
of the file system as seen as root directory by the client. The server hands
most of its RAM quota to the rump kernel. This means the larger the quota is,
the larger the internal block caches of the rump kernel will be.