Commit Graph

320 Commits

Author SHA1 Message Date
Norman Feske
f65606f179 Add resource-balancing support to parent interface
This is just the interface. The implementation is still missing.

Issue #887
2013-10-05 12:44:35 +02:00
Norman Feske
5befab7f3d Add 'String<SIZE>' buffer type to 'util/string.h'
The new 'String' buffer type is meant to replace the manually created
character buffers that are scattered throughout Genode. It plainly holds
a null-terminated string to be stored as a member variable (e.g., a
session label) or passed as RPC argument. It is not intended to become a
string API.
2013-10-05 12:44:35 +02:00
Martin Stein
00f16be122 base: fix bug in Allocator_guard::free
ref #589
2013-09-26 15:58:05 +02:00
Martin Stein
1571e09823 base: implement Object_pool::first_locked()
ref #589
2013-09-26 15:58:04 +02:00
Martin Stein
e07781dc1c base: destruct signal receiver platform specific
This is made for future signal framework in base-hw
wich needs a platform specific hook in the signal-
receiver destruction.

ref #589
2013-09-26 15:58:04 +02:00
Martin Stein
bf37159eb9 base: provide class Genode::Fifo_element
ref #528
2013-09-26 15:58:04 +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
Christian Helmuth
4556a9e353 Preserve thread-context area as early as possible 2013-09-26 14:42:52 +02:00
Norman Feske
f1dcaa746d Enable C++11 by default 2013-09-23 14:26:01 +02:00
Josef Söntgen
8b69d91c05 trace: method for getting buffer-wrap count 2013-09-23 14:26:01 +02:00
Norman Feske
20883c52b5 trace: Frontend for reading trace-buffer entries 2013-09-23 14:26:00 +02:00
Christian Helmuth
9f3c4c227e Put entry point at start of text segment / binary
Fixes #881.
2013-09-23 14:26:00 +02:00
Norman Feske
8243329ad4 os: Move Genode::Config into 'config' library
Originally, the convenience utility for accessing a process
configuration came in the form of a header file. But this causes
aliasing problems if multiple compilation units access the config while
the configuration gets dynamically updated. Moving the implementation of
the accessor to the singleton object into a library solves those
problems.
2013-09-23 14:25:58 +02:00
Norman Feske
4b4ba30498 base: Make Signal_receiver noncopyable
This change prevents accidental copying of signal receivers via a
compile error.
2013-09-18 14:58:55 +02:00
Norman Feske
21462cdbd2 base: Add const qualifiers to 'util/list.h'
This patch adds support for iterating through a const list. This allows
users of lists to be more rigid with regard to constness. Furthermore,
the patch adds the function 'List::insert_at' for inserting an element
at a specified position. By adding this function, we can remove code
duplication in nitpicker.
2013-09-18 14:58:55 +02:00
Norman Feske
690fc51fad Minor comment fix 2013-09-18 14:58:54 +02:00
Norman Feske
78c8145d9b base-hw: Define CACHE_LINE_SIZE_LOG2 for rpi 2013-09-18 14:58:54 +02:00
Christian Helmuth
46ee8241b4 thread: convenience trace methods
Implementation of declared trace methods for (null-temrinated) C string
and character buffer with given length.
2013-09-06 16:24:48 +02:00
Christian Prochaska
3e8e55ec16 CPU affinity configuration fixes
- if no affinity was set for a new thread before calling
  Cpu_session::start(), the CPU session's affinity gets set for this
  thread
- documentation fix: <affinity_space> -> <affinity-space>

Fixes #873.
2013-09-02 19:43:36 +02:00
Josef Söntgen
2501cb189e core: explicitly throw Out_of_metadata
In case there is not enough quota left to create the trace buffer
or trace policy dataspace throw Out_of_metadata explicitly instead
of rethrowing the Ram_session::Quota_exceeded exception. Now one
can catch Trace::Out_of_metadata exception in a client application.

In addition fix Allocator_guard::withdraw() checks because this
method does not throw any exceptions and a failed withdrawal goes
unoticed.

Fixes #871.
2013-09-02 19:43:00 +02:00
Josef Söntgen
82eb5e4323 base: only commit useful trace events
If the length of a trace event entry is zero it should be ommitted.

Fixes #851.
2013-08-30 13:32:06 +02:00
Martin Stein
d4e435d732 mmio: provide bitsets and test them
fix #853
2013-08-30 13:29:22 +02:00
Martin Stein
8188e85691 mmio: interpret read-verbosity switch
fix #825
2013-08-30 13:27:41 +02:00
Josef Söntgen
d967be473a base: fix pausing tracing subjects
Fixes #858.
2013-08-29 15:41:40 +02:00
Alexander Boettcher
77fe612adb base: fix thread_cap initialization
Fixes #842
2013-08-29 15:41:04 +02:00
Norman Feske
a652cb5110 Apply affinity subspacing to session requests 2013-08-15 09:22:50 +02:00
Josef Söntgen
a4066c358e Add trace points (RPC and signal) 2013-08-15 09:22:50 +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
a2b15349fd base: Add tracing support to CPU session interface 2013-08-13 17:27:40 +02:00
Christian Prochaska
fd11bd489e base: increase maximum file name length
This patch increases the maximum file name length to support
'qt5_qnitpickerviewwidget.lib.so'.

Issue #345.
2013-08-13 17:08:26 +02:00
Martin Stein
bb00aebc9e hw & signal: consider initial SLAB blocks
By now Signal_session_component has allocated initial SLAB
blocks in constructor, wich crashed with the root
components assumptions about the RAM quota needs of
session creation. Thus, if the background allocator was already
exhausted from component allocation the session was created
with broken initial SLAB blocks.

fix #574
2013-08-13 17:08:26 +02:00
Norman Feske
35723d813d core: evaluate CPU session affinity argument 2013-08-13 17:08:25 +02:00
Norman Feske
fd95637289 Interface for setting CPU connection affinity 2013-08-13 17:08:25 +02:00
Norman Feske
6d837c9e26 Attach affinity information to session requests
This patch extends the 'Parent::session()' and 'Root::session()'
functions with an additional 'affinity' parameter, which is inteded to
express the preferred affinity of the new session. For CPU sessions
provided by core, the values will be used to select the set of CPUs
assigned to the CPU session. For other services, the session affinity
information can be utilized to optimize the locality of the server
thread with the client. For example, to enable the IRQ session to route
an IRQ to the CPU core on which the corresponding device driver (the IRQ
client) is running.
2013-08-13 17:08:25 +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
2e58428b51 run: Rpc_entrypoint test running on multiple CPUs
Add run script to autopilot list

Issue #814
2013-08-13 17:08:24 +02:00
Alexander Boettcher
9e8255948d base: add affinity to rpc_entrypoint constructor
Issue #814
2013-08-13 17:08:24 +02:00
Alexander Boettcher
0079179f05 base: store initial ax and di registers in crt0.s
The values are used by a follow up commit by nova to get the boot CPU number.

Issue #814
2013-08-13 17:08:24 +02:00
Alexander Boettcher
fdaeda47bb run: extend affinity test
* read out supported number of CPUs
* start per CPU a thread
* monitor by main thread liveness of remote CPU threads
* add a round variable
* terminate run script after a specific round or after 90s
* on qemu wait 5 rounds, on native runs 40

Add run script to autopilot list

Issue #814
2013-08-13 17:08:24 +02:00
Alexander Boettcher
683832f461 base: avoid deadlock if invalid object is called
This avoids a deadlock if during issuing a printf the low level IPC fails.
. Printf uses an address space local lock and if we are trying again
to make a printf we deadlock forever ...
2013-08-13 17:08:23 +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 #814
2013-08-13 17:08:23 +02:00
Alexander Boettcher
717be91e16 base: deny region creation exceeding size of a ds
The rm_session implementation expects that offset + size must be
part of one dataspace. Unfortunately the parameters are not checked
properly during an rm::attach.

During an detach memory behind the actual region can be unmapped by such
bogus region entries.

Issues #591
2013-08-05 15:15:40 +02:00
Christian Prochaska
09049278a6 Round up RM session size to page granularity
Since RM sessions can be used as dataspaces and dataspace sizes are
supposed to have page granularity, RM session sizes should have page
granularity, too.

Fixes #799.
2013-07-18 11:56:44 +02:00
Josef Söntgen
505f4290ec base: activate Rpc_entrypoint explicitly in dtor
The Rpc_exit call is delivered via RPC which results in a deadlock
if the Rpc_entrypoint has not been started yet. To prevent this
situation we active the Rpc_entrypoint explicitly before we call
Rpc_exit.

Fixes #811.
2013-07-16 12:32:29 +02:00
Stefan Kalkowski
a341f744ce Cortex A15: temporarily remove -mcpu switch again
Make compiler stop complaining about every compilation unit.

Fixes #810.
2013-07-16 12:29:47 +02:00
Stefan Kalkowski
946bd297e6 Add -mcpu flag to ARM CPU spec files (Ref #797)
When using certain assembler instructions, e.g. 'smc' that are
only available on some CPUs of the same architecture like ARMv7a,
it's necessary to specify the target CPU for the assembler. Otherwise
it will complain about.
2013-07-11 12:44:24 +02:00
Christian Prochaska
c962240922 crt0 cleanup
- use the generic 'crt0.s' for Linux
- move the read-only '__dso_handle' definition into the '.text' section
- move the '__initial_sp' definition into the '.bss' section
- remove the '_main_utcb' definition

Part of #766.
2013-07-05 12:37:43 +02:00
Martin Stein
ee4c98e093 base: provide BSS boundary marks in genode.ld
This enables us to use the generic linker script for
base-hw also.

Ref #766
2013-07-05 12:37:43 +02:00
Josef Söntgen
cb76c0c45f core: remove hardcoded 'init' from Log output
Until now the print procedure call in the Log_session_component
did contain a hardcoded 'init' string. Adding a method to filter
the session args to prefix the label and labelling the initial
Cpu_connection for the init-process enabled us to remove the
hardcoded string.

Fixes #789.
2013-07-05 12:37:42 +02:00