Commit Graph

979 Commits

Author SHA1 Message Date
Christian Prochaska
d67cb43605 Noux: increase ENV_MAX_LEN
Fixes #515.
2012-11-26 20:58:10 +01:00
Christian Prochaska
ec0b6f82a5 Noux: add tar hardlink support in 'stat()'
Fixes #481.
2012-11-26 20:58:10 +01:00
Stefan Kalkowski
d233186900 L4Linux: hold queue lock in block driver (fix #395)
When finishing a block request in the L4Linux block stub driver,
we#ve to hold the queue lock before using __blk_end_request_all, or
simply use blk_end_request_all instead. Moreover, this commit simplifies
the lock/unlock behaviour when the block queue has to be stopped, or resumed.
Thanks to I. Ismagilov for these suggestions.
2012-11-26 20:58:10 +01:00
Josef Söntgen
2e6de3759c Noux: add getrlimit() dummy to libc_noux
As long as there is no proper getrlimit() support prevent programs
from using it by providing a dummy implementation.
2012-11-26 20:58:10 +01:00
Josef Söntgen
14c1f64733 libports: set getrlimit() to weak in libc
This functions needs to be overriden by libc_noux.
2012-11-26 20:58:10 +01:00
Josef Söntgen
569e0a2e6c Remove unneeded PDBG() messages 2012-11-26 20:58:10 +01:00
Josef Söntgen
e82f61f938 Noux: add noux-pkg/openssh interactive run-script
Currently only ssh(1) is tested but scp(1) should also work. Noux
still misses some functionality which is needed for sshd(1).
2012-11-26 20:58:10 +01:00
Josef Söntgen
46597d3b17 Noux: add noux-pkg/openssh 2012-11-26 20:58:10 +01:00
Josef Söntgen
5c413929ef Noux: add ioctl() to Vfs
File_io_channel now includes ioctl() because pseudo devices which are
implemented as a file-system, e.g. /dev/tty, are controlled via ioctl()
requests. The method is exported to the Vfs through the Vfs_io_channel
class.
2012-11-26 20:58:09 +01:00
Josef Söntgen
c24a95b819 Noux: add random_file_system
The random file-system provides an arc4 based urandom implementation
which is needed for OpenSSL.

NOTE: the Arc4random class currently _does not collect enough_ random
bytes!
2012-11-26 20:58:09 +01:00
Josef Söntgen
7f359a5978 Noux: add stdio_file_system
This file-system provides a connection to the terminal through a device
node, e.g. /dev/tty.
2012-11-26 20:58:09 +01:00
Josef Söntgen
ebfe49ca84 Noux: use Terminal::Connection as singleton
We will reuse the terminal connection in the stdio filesystem
to implement /dev/tty. Therefor we need to access the terminal
from different locations which is simplified if it is provided
by a singleton.
2012-11-26 20:58:09 +01:00
Josef Söntgen
82eb0e9f9a Noux: add TIOCSETAF/W dummy to Terminal_io_channel 2012-11-26 20:58:09 +01:00
Josef Söntgen
59c369a608 Noux: add TIOCSETAF/W support
These ioctl() request are used to set attributes of the underlying
terminal device.
2012-11-26 20:58:09 +01:00
Josef Söntgen
9ce32d6414 Terminal: fix color variable initialization 2012-11-26 20:58:09 +01:00
Josef Söntgen
42df6e3d01 libports: add test/libc_resolv target
libc_resolv is used by noux-pkgs and is only a runtime dependency but
therefore needs to be build.
2012-11-26 20:58:09 +01:00
Norman Feske
91e6ab2baf Linux: Robustness of socket life-time management
This patch improves the life-time management of socket descriptors and
addresses several corner cases exposed by the 'bomb' test.

The lookup and association of file descriptors with global IDs have been
turned into an atomic operation. Otherwise, multiple threads interacting
with the singleton 'ep_sd_registry' may override each other's
associations.

Closing the socket pair used for the reply channel has been implemented
via the RAII pattern to capture all corner cases, in particular
exceptions.

If blocking operations are interrupted by signals, we throw a
'Blocking_canceled' exception.

We preserve core's socket descriptor at 'PARENT_SOCKET_HANDLE' to avoid
a corner case where the parent capability is going to dup2'ed to the
same handle.

Support for 'Thread_base::join' within core to enable leaving Genode via
Control-C.
2012-11-26 20:58:09 +01:00
Norman Feske
5c8373bec3 Cleanup destruction of RPC entrypoints
This patch introduces clean synchronization between the entrypoint
thread and the caller of the 'Rpc_entrypoint' destructor. The most
important change is the handling of the 'Ipc_server' destruction. This
object is in the local scope of the server's entry function. However,
since the server loop used to be an infinite loop, there was hardly any
chance to destruct the object in a clean way. Hence, the
'Rpc_entrypoint' destructor used to explicitly call '~Ipc_server'.
Unfortunately, this approach led to problems because there are indeed
rare cases where the server thread leaves the scope of the entry
function, namely uncaught exceptions. In such a case, the destructor
would have been called twice.

With the new protocol, we make sure to leave the scope of the entry
function and thereby destroy the 'Ipc_server' object as expected. This
is achieved by propagating the exit condition through a local RPC call
to the entrypoint. This way, the blocking state of the entrypoint
becomes unblocked. Furthermore, '~Rpc_entrypoint' makes use of the new
'join' function to wait for the completion of the server thread.
2012-11-26 20:58:09 +01:00
Christian Helmuth
3a6b739384 Add more known segment types for dynamic ELFs
These segments are not critical and the commit reduces noise in the log.
2012-11-26 11:34:00 +01:00
Norman Feske
0bcf55800f Eagerly map DMA buffers
This patch is a work-around for issue #452.
2012-11-26 09:45:20 +01:00
Norman Feske
f2e47ef9f4 Whitespace 2012-11-26 09:45:13 +01:00
Norman Feske
1cc1308a80 Include 'EXT_OBJECTS' in ld group
Fixes #509.
2012-11-23 18:16:52 +01:00
Norman Feske
2ac7c5258b News item about how Genode came to the Pandaboard 2012-11-23 17:22:09 +01:00
Sebastian Sumpf
b902d5ed72 FOC: Change interrupt mode heuristic
Don't touch interrupts modes for IRQs below 16 if not explicitly requested.

Fixes issue #512
2012-11-23 12:20:28 +01:00
Stefan Kalkowski
5f81705488 Atapi: limit block count in DMA request (fix #514)
The block count in DMA requests is limited to 8 bit. Therefore,
if a client requests more than 255 blocks in a single packet request,
split the request in a loop.
2012-11-23 12:20:28 +01:00
Alexander Boettcher
c63a6d94f6 NOVA: add chain_loader 'bender'
'Bender' can detect serial ports accessible via PCI and writes the I/O ports
to the Bios Data area (BDA).

Usage together with the PXE bootloader ease life running Genode/NOVA on native
hardware, where a standard serial device isn't available anymore anywhere.
2012-11-23 12:20:28 +01:00
Alexander Boettcher
94c6b7bd10 NOVA: map boot modules rx only 2012-11-23 12:20:28 +01:00
Alexander Boettcher
d5ef49acf9 NOVA: fix bootstrap if modules are loaded above 3G
We don't can use map_local_one_to_one for boot modules because it happens
that boot modules can be at addresses above physical 3G boundary for x86_32.

Defer the mapping of modules until the point where the core allocators
are set up properly and then remap the physical pages to virtual addresses
below 3G.
2012-11-23 12:20:27 +01:00
Alexander Boettcher
b8ab3673cd NOVA: support to restrict memory rwx bits in core 2012-11-23 12:20:27 +01:00
Alexander Boettcher
4d12464cee Read BIOS data area (BDA) to get serial I/O ports
If the I/O ports are non default (3f8), we had to specify manually the correct
I/O ports. With this commit the BDA is read and the I/O port of the first
serial interface (COM) is taken. If no serial interface is available no device
configuration will be undertaken.
2012-11-23 12:20:27 +01:00
Ivan Loskutov
5e66b6d5ed Add OMAP4 GPIO driver
Add Gpio session interface. Add test for Pandaboard.

Fixes #427
2012-11-23 12:20:27 +01:00
Norman Feske
deb465e442 Improve robustness of chroot-related tests 2012-11-23 12:20:27 +01:00
Stefan Kalkowski
53529e0eeb Fiasco.OC: enable i.MX53 platform 2012-11-23 12:20:27 +01:00
Stefan Kalkowski
88316abca1 Merge panda_a2 and panda SPEC (fix #505, fix #506)
There is no obvious reason for having two different SPEC variables, definitions,
and pathes for the Pandaboard platform. It even lead to problems regarding the
omap4 framebuffer driver (look at issue #505 and #506).
2012-11-23 12:20:27 +01:00
Martin Stein
1b73f80350 base-hw: Fix bug in 'thread_resume' syscall. 2012-11-23 12:20:26 +01:00
Martin Stein
b7c1404fbf base & core: Use FIFO to queue RM faulters.
By now RM faulters are hold in a LIFO. Thus a starvation problem
occurs on managed dataspaces when multiple threads throw pagefaults
continuously.
2012-11-23 12:20:26 +01:00
Martin Stein
05f5999e71 cpu_session: Access thread state by value 2012-11-23 12:20:22 +01:00
Martin Stein
4dadd6a437 base-hw: Read and write whole thread states.
By now there is no use case for read/write a single register
of a thread state. Thus the new syscalls 'read_thread_state' and
'write_thread_state' replace the old ones 'read_register' and
'write_register'.
2012-11-22 09:21:53 +01:00
Martin Stein
6cb89f79e3 base_hw & arm_v7: Use write-back caching.
Add 'resume_faulter' syscall that is similar to 'resume_thread', but
is called only when resuming a thread after resolving its pagefault.
This way the kernel can flush caches after resolving a pagefault. This is
because by now the MMU doesn't use caches when doing a pagetable walk.
2012-11-22 09:21:53 +01:00
Martin Stein
4723b08322 base_hw: Use TLB-specific 'struct Page_flags'.
'Page_flags' maps application-specific memory attributes
to the TLB-specific memory attributes. Thereby it avoids
functions with lots of parameters, by declaring appropriate
bitfields on a single POD value.
2012-11-22 09:21:53 +01:00
Christian Prochaska
47690b8802 Noux: make install target configurable
With this patch the make install target for Noux applications gets defined
in the 'NOUX_INSTALL_TARGET' make variable with 'install-strip' as default.

Fixes #503.
2012-11-22 09:21:53 +01:00
Norman Feske
8e831d2224 base-linux: Support customization of UIDs and GIDs
With this patch, custom UIDs and GIDs can be assigned to individual
Genode processes or whole Genode subsystems.

The new 'base-linux/run/lx_uid.run' script contains an example of how to
use the feature.

Fixes #510
2012-11-22 09:21:48 +01:00
Norman Feske
959df5d46b Generalize handling of PD-session arguments
On Linux, we want to attach additional attributes to processes, i.e.,
the chroot location, the designated UID, and GID. Instead of polluting
the generic code with such Linux-specific platform details, I introduced
the new 'Native_pd_args' type, which can be customized for each
platform. The platform-dependent policy of init is factored out in the
new 'pd_args' library.

The new 'base-linux/run/lx_pd_args.run' script can be used to validate
the propagation of those attributes into core.

Note that this patch does not add the interpretation of the new UID and
PID attributes by core. This will be subject of a follow-up patch.

Related to #510.
2012-11-21 20:04:07 +01:00
Torsten Hilbrich
59eb8bf3a8 base-linux: Add chdir after performing chroot
This ensures that the cwd of the process is within the chroot
environment, improving security for root processes.

The cwd after the chroot is the same as before, this is needed to
start binaries given as relative path name.
2012-11-21 20:03:52 +01:00
Norman Feske
bcabbe2c92 Add 'Thread_base::join()'
Using the new 'join()' function, the caller can explicitly block for the
completion of the thread's 'entry()' function. The test case for this
feature can be found at 'os/src/test/thread_join'. For hybrid
Linux/Genode programs, the 'Thread_base::join()' does not map directly
to 'pthread_join'. The latter function gets already called by the
destructor of 'Thread_base'. According to the documentation, subsequent
calls of 'pthread_join' for one thread may result in undefined behaviour.
So we use a 'Genode::Lock' on this platform, which is in line with the
other platforms.

Related to #194, #501
2012-11-19 12:43:34 +01:00
Christian Helmuth
2995011b34 base-linux: implement IPC server destruction
When an IPC server is finalized two important things should happen:
First, the association of the server socket with a capability must be
invalidated. And finally, the server socket pair (server side and client
side) must be closed.

Related to #38.
2012-11-16 13:55:08 +01:00
Christian Helmuth
d23ee02e9a Destruct IPC-server object on entrypoint destruction
The IPC-server object exists solely on the stack of the entrypoint
thread and, therefore, would never be destructed as the thread is just
killed. Now, the object is explicitly destructed in the entrypoint
destructor. An alternative solution could instruct the entrypoint thread
the terminate, which would automatically cleanup its stack.

The object pool is assumed to be empty on destruction of the entrypoint.
If not, we warn and at least dissolve all RPC objects.
2012-11-16 13:55:00 +01:00
Christian Helmuth
2cdac0eb32 bomb test: stack size on 64-bit / dense logging 2012-11-15 12:58:47 +01:00
Christian Helmuth
d7c511ad87 base: entrypoint stack size 2048 machine words
This makes the stack fit for 32-bit as well as 64-bit platforms.
2012-11-15 12:58:46 +01:00
Christian Helmuth
3d35c3e23b base-fiasco: support 64bit build hosts 2012-11-15 10:32:05 +01:00