Commit Graph

62 Commits

Author SHA1 Message Date
Martin Stein
99ec536c53 thread: init thread cap for non-core main threads
ref 
2014-02-28 10:11:13 +01:00
Martin Stein
523791b361 base: generic implementation of Context_allocator
ref 
2014-02-25 14:58:05 +01:00
Martin Stein
0b64328944 base: setup thread object for main thread in CRT0
For a main thread a thread object is created by the CRT0 before _main gets
called so that _main can already run in a generic environment that, e.g.,
catches stack overflows as a page-fault instead of corrupting the BSS.
Additionally dynamic programs have only one CRT0 - the one of the LDSO -
which does the initialization for both LDSO and program.

ref 
2014-02-25 14:58:05 +01:00
Martin Stein
f7149623ca base: rename reload_parent_cap.cc
ref 
2014-02-25 14:58:04 +01:00
Stefan Kalkowski
5447c406e5 thread: rearrange thread context management
Use a bit allocator for the allocation management of thread contexts,
instead of holding allocation information within the Thread_base objects,
which lead to race conditions in the past.

Moreover, extend the Thread_base class interface with the ability to
to add additional stacks to a thread, and associate the context they're
located in with the corresponding Thread_base object. Additional stacks
can be used to do user-level scheduling with stack switching, without breaking
Genode's API.

Fixes 
Fixes 
2014-01-27 18:54:09 +01:00
Christian Helmuth
7e517179c9 Unify stack alignment among all platforms
The alignment is now done in Thread_base::Context. Implementations are
forced to use Context::stack_top(), which aligns the stack top.
2014-01-27 18:54:08 +01:00
Norman Feske
89403a24b3 Avoid target-name ambiguity of "test-thread"
Both base/src/test/thread and base-okl4/src/test/okl4_03_thread used the
same target name, which ultimately confused the build system when
building on OKL4.
2013-12-28 19:50:25 +01:00
Martin Stein
883aa83e62 okl4 & priority.run: new order of core services
ref 
2013-11-25 09:46:28 +01:00
Alexander Boettcher
a6af6c80ab base: count caps replied by a rpc function
Issue 
2013-11-18 11:01:45 +01:00
Martin Stein
20e91d0b60 base: individual implementations of pager-object
ref 
2013-11-14 19:57:30 +01:00
Christian Prochaska
cc04ffcf42 GDB monitor: find out page faulting thread
Fixes .
2013-10-25 23:49:00 +02:00
Christian Helmuth
f763e5ec2a Move main bootstrap to platform-specific object
To prevent multiple execution of main-bootstrap, I moved the code to a
statically initialized object. The reason for this change is that
_main() is exeuted twice when starting dynamic binaries. Now, the object
is part of the base-common library which is linked with ld.lib.so.
2013-09-26 15:00:16 +02:00
Norman Feske
149356f7ab core: TRACE service interface and implementation 2013-08-15 09:22:47 +02:00
Norman Feske
fe4a6d7d81 base: User-level tracing support 2013-08-14 18:43:19 +02:00
Norman Feske
5fe29e8e4a Express affinities via Cartesian coordinates
This patch introduces new types for expressing CPU affinities. Instead
of dealing with physical CPU numbers, affinities are expressed as
rectangles in a grid of virtual CPU nodes. This clears the way to
conveniently assign sets of adjacent CPUs to subsystems, each of them
managing their respective viewport of the coordinate space.

By using 2D Cartesian coordinates, the locality of CPU nodes can be
modeled for different topologies such as SMP (simple Nx1 grid), grids of
NUMA nodes, or ring topologies.
2013-08-13 17:08:24 +02:00
Alexander Boettcher
4ae1faf14d base: add affinity support to pager construction
Propagating the affinity information is needed to allow for assigning
a pager thread that is local to the CPU of the to-be-created thread.

issue 
2013-08-13 17:08:23 +02:00
Alexander Boettcher
e5eeda2ec9 run: support TFTP servers using absolute paths
TFTP server requiring absolute directory names are supported (better) -
specify in RUN_OPT "--tftp-absolute" to create Pulsar config with absolute
path names for PXE boot.

Additional a symbolic link is created from the build directory to
"$PXE_TFTP_DIR_BASE$PXE_TFTP_DIR_OFFSET" automatically. This eases the use
together with autopilot for x86.
2013-06-14 14:27:14 +02:00
Alexander Boettcher
1887222b53 okl4: use bender, read out comport from BDA
Issue 
2013-06-12 11:36:14 +02:00
Christian Helmuth
b355897f53 update x86emu to 1.20
+ document x86emu move from os -> libports

Fixes 
2013-06-12 11:35:12 +02:00
Alexander Boettcher
2a761c7fea run: extend genode_until_run by a spawn id
genode_until_run can be called now with a spawn id to able to reattach to a
spawned process (amt, serial output). Run scripts can now call genode_until_run
multiple times.
2013-05-08 09:42:44 +02:00
Stefan Kalkowski
8e9e866161 Unify framebuffer driver binary names (fix )
Introduce 'framebuffer' SPEC variable to distinguish hardware framebuffer
drivers furthermore from the SDL framebuffer driver used by Genode/Linux.
2013-05-07 13:04:30 +02:00
Alexander Boettcher
8a393183e9 run: PXE+AMT support for x86 kernels
Issue 
2013-04-12 10:56:27 +02:00
Alexander Boettcher
455f606f31 run: add Pulsar PXE boot support for x86 kernels
Issue 
2013-04-12 10:56:27 +02:00
Alexander Boettcher
fff1a374ed run: add Intel AMT support to x86 kernels
Issue 
2013-04-12 10:56:27 +02:00
Norman Feske
21de42c45d core: Introduce 'Address_space' interface
The new core-internal 'Address_space' interface enables cores RM service
to flush mappings of a PD in which a given 'Rm_client' thread resides.
Prior this patch, each platform invented their own way to flush mappings
in the respective 'rm_session_support.cc' implementation. However, those
implementations used to deal poorly with some corner cases. In
particular, if a PD session was destroyed prior a RM session, the RM
session would try to use no longer existing PD session. The new
'Address_space' uses the just added weak-pointer mechanism to deal with
this issue.

Furthermore, the generic 'Rm_session_component::detach' function has
been improved to avoid duplicated unmap operations for platforms that
implement the 'Address_space' interface. Therefore, it is related to
issue . Right now, this is OKL4 only, but other platforms will follow.
2013-03-12 21:53:08 +01:00
Christian Prochaska
a99193ad90 Rework the internal lock interface
With this patch, the 'futex' syscall gets used for blocking and unblocking
of threads in the Linux-specific lock implementation.

The 'Native_thread_id' type, which was previously used in the
lock-internal 'Applicant' class to identify a thread to be woken up,
was not suitable anymore for implementing this change. With this patch,
the 'Thread_base*' type gets used instead, which also has the positive
effect of making the public 'cancelable_lock.h' header file
platform-independent.

Fixes .
2013-02-25 22:14:21 +01:00
Martin Stein
0f8803245a base: make signal framework usable for base-hw
ref 
2013-02-22 20:28:28 +01:00
Norman Feske
b618c9343e Remove os/config
This patch moves the os/config examples to their respective run scripts,
removes some of them, and moves the priority example to the src/init
directory (where other examples are located).

Additionally, this patch adapts the OKL4-specific priority.run test to
the recent changes of the timer interface.
2013-02-20 14:49:16 +01:00
Norman Feske
fae63f4fa9 Merge base libraries into a single library
This patch simplifies the way of how Genode's base libraries are
organized. Originally, the base API was implemented in the form of many
small libraries such as 'thread', 'env', 'server', etc. Most of them
used to consist of only a small number of files. Because those libraries
are incorporated in any build, the checking of their inter-dependencies
made the build process more verbose than desired. Also, the number of
libraries and their roles (core only, non-core only, shared by both core
and non-core) were not easy to capture.

Hereby, the base libraries have been reduced to the following few
libraries:

- startup.mk contains the startup code for normal Genode processes.
  On some platform, core is able to use the library as well.
- base-common.mk contains the parts of the base library that are
  identical by core and non-core processes.
- base.mk contains the complete base API implementation for non-core
  processes

Consequently, the 'LIBS' declaration in 'target.mk' files becomes
simpler as well. In the most simple case, only the 'base' library must
be mentioned.

Fixes 
2013-02-19 14:45:55 +01:00
Norman Feske
bcdc706f42 Unify 'ipc.h' and 'ipc_generic.h' across platforms
The distinction between 'ipc.h' and 'ipc_generic.h' is no more. The only
use case for platform-specific extensions of the IPC support was the
marshalling of capabilities. However, this case is accommodated by a
function interface ('_marshal_capability', '_unmarshal_capability'). By
moving the implementation of these functions from the headers into the
respective ipc libraries, we can abandon the platform-specific 'ipc.h'
headers.
2013-02-14 13:23:37 +01:00
Norman Feske
b1f63e3356 Turn 'platform_env.h' into a private header
This patch removes 'platform_env.h' from the public API headers because
this header was not part of the API anyway.
2013-02-14 13:23:36 +01:00
Alexander Boettcher
9453d319cb base: add remove_client to rm_session
Fixes 
2013-02-11 12:01:25 +01:00
Norman Feske
73ab30c22c Update copyright headers to 2013 2013-01-10 21:44:47 +01:00
Alexander Boettcher
c2d3543e62 base: replace obj_by_* by lookup_and_lock
Add functionality to lookup an object and lock it. Additional the case is
handled that a object may be already in-destruction and the lookup will deny
returning the object.

The object_pool generalize the lookup and lock functionality of the rpc_server
and serve as base for following up patches to fix dangling pointer issues.
2013-01-10 11:13:13 +01:00
Martin Stein
05f5999e71 cpu_session: Access thread state by value 2012-11-23 12:20:22 +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 .
2012-11-21 20:04:07 +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 , 
2012-11-19 12:43:34 +01:00
Martin Stein
91c27f3f72 base: Tell a mapping wether it maps IO memory. 2012-11-14 16:36:51 +01:00
Norman Feske
db2b1a37ae Propagate process labels to PD sessions
On Linux, we use the session label for naming the corresponding Linux
process. When looking up the processes via 'ps', the Genode process
hierarchy becomes immediately visible.
2012-11-05 17:31:04 +01:00
Stefan Kalkowski
dc3d784e6d Introduce platform-specific services for core
By now all services in core where created, and registered in the generic
main routine. Although there exists already a x86-specific service (I/O ports)
there was no possibility to announce core-services for certain platforms only.
This commit introduces a hook function in the 'Platform' class, that enables
registration of platform-specific services. Moreover, the io-port service
is offered on x86 platforms only now.
2012-10-29 10:08:29 +01:00
Alexander Boettcher
664e0dc7cd Provide cpu_session_cap via environment object
Preparation to solve issue 
2012-10-24 11:34:33 +02:00
Sebastian Sumpf
4a3d852b65 Core: Shared IRQ support for Nova/FOC/OKL4
Implement shared IRQs using 'Irq_proxy' class.

Nova: Added global worker 'Irq_thread' support in core and adapted Irq_session.

FOC: Adapted IRQ session code, x86 has shared IRQ support, ARM uses the old
model. Read and set 'mode' argument (from MADT) in 'Irq_session'.

OKL4: Use generic 'Irq_proxy'

Fixes issue 
2012-10-11 17:10:16 +02:00
Norman Feske
4a1b545770 Move 'Child' API implementation to library 2012-10-09 13:45:33 +02:00
Alexander Boettcher
ea38aad30e Move context area definition to native_type 2012-09-24 09:17:54 +02:00
Norman Feske
83bdfea9b0 Extend Cpu_session with thread-affinity API
This patch introduces the functions 'affinity' and 'num_cpus' to the CPU
session interface. The interface extension will allow the assignment of
individual threads to CPUs. At this point, it is just a stub with no
actual platform support.
2012-09-05 10:25:04 +02:00
Norman Feske
94caac575b Compile warning fix 2012-08-22 09:51:27 +02:00
Martin Stein
9369057f90 Extend RAM/CPU session for base-hw context-areas. 2012-08-02 16:41:21 +02:00
Christian Helmuth
36ae42b8ff Check for required tools on 'make prepare'
Fixes .
2012-05-29 13:55:00 +02:00
Christian Prochaska
7a369bc74d Add an 'executable' flag to 'Rm_session::attach()'
With this patch clients of the RM service can state if they want a mapping
to be executable or not. This allows dataspaces to be mapped as
non-executable on Linux by default and as executable only if needed.

Partially fixes .
2012-04-20 11:21:19 +02:00
Norman Feske
de2723c794 Heuristics for determining python2 for OKL4 2012-04-16 11:49:44 +02:00