Commit Graph

433 Commits

Author SHA1 Message Date
Christian Prochaska
44648bb5c7 tool_chain/cxx: use '__cxa_demangle()' for exception names
Fixes #1976
2016-05-23 15:52:50 +02:00
Christian Prochaska
2cde1d36c1 base: changes for GDB monitor
- add a new function 'binary_ready_hook_for_gdb()' in ldso. GDB can set a
  breakpoint at this function to know when ldso has loaded the binary
  into memory.
- get the thread state from the NOVA kernel immediately on 'pause()'

Fixes #1968
2016-05-23 15:52:49 +02:00
Norman Feske
807be83b1b Remove inconsistent use of 'is_' prefix
Fixes #1963
2016-05-23 15:52:39 +02:00
Norman Feske
15141f3ca7 Remove hand-crafted Rpc_functions typedefs 2016-05-23 15:52:39 +02:00
Norman Feske
ef9a7d2230 base: remove length limit of Type_list 2016-05-23 15:52:39 +02:00
Norman Feske
a99989af40 Separation of thread operations from CPU session
This patch moves the thread operations from the 'Cpu_session'
to the 'Cpu_thread' interface.

A noteworthy semantic change is the meaning of the former
'exception_handler' function, which used to define both, the default
exception handler or a thread-specific signal handler. Now, the
'Cpu_session::exception_sigh' function defines the CPU-session-wide
default handler whereas the 'Cpu_thread::exception_sigh' function
defines the thread-specific one.

To retain the ability to create 'Child' objects without invoking a
capability, the child's initial thread must be created outside the
'Child::Process'. It is now represented by the 'Child::Initial_thread',
which is passed as argument to the 'Child' constructor.

Fixes #1939
2016-05-23 15:52:39 +02:00
Christian Helmuth
3ba61a2ddf Move rust support to libports
Issue #1899
2016-05-23 15:52:38 +02:00
Norman Feske
a7b3072cc2 Pass Env & as first argument to connection objects
This patch supplements each existing connection type with an new
constructor that is meant to replace the original one. The new
one takes a reference to the component's environment as argument and
thereby does not rely on the presence of the globally accessible
'env()' interface.

The original constructors are marked as deprecated. Once we have
completely abolished the use of the global 'env()', we will remove them.

Fixes #1960
2016-05-23 15:52:37 +02:00
Norman Feske
3361651e9e base: remove dependency from deprecated config lib
Issue #1959
2016-05-23 15:52:37 +02:00
Norman Feske
8da737acfd base: add Attached_rom_dataspace::xml method
Issue #1959
2016-05-23 15:52:36 +02:00
Norman Feske
e0c0794f33 base: supplement comment of Xml_node constructor 2016-05-23 15:52:36 +02:00
Norman Feske
8d797105b3 Move Attach_*dataspace utils from os to base
Fixes #1958
2016-05-23 15:52:36 +02:00
Christian Helmuth
16914bddc8 Implement affinity test as component
This enables the use of the current Thread API to set thread affinity on
construction.
2016-05-23 15:52:36 +02:00
Norman Feske
f6dec901bb base: remove Component::name from API
It turns out that the name function does not have much use in practice
except for naming the thread of the component's initial entrypoint. For
dynamically linked components, this thread is created by the dynamic
linker. It is named "ep" in these cases. Considering that we will
eventually turn all regular components into dynamically linked
executables, the additional information provided by the
Component::name() function remains unused. So it is better to not bother
the component developers with adding boilerplate code.
2016-05-23 15:49:56 +02:00
Waylon Cude
1e95af5bab Fixed linking and memory allocation for rust
Now rlibs are actually linked to programs. Target files have been
modified to not generate code that requires compiler-rt. Added a target
for libstd-rust, but it's very broken right now. Moved alloc_system to
the libports folder because either a memory allocator needs to be
written in rust or posix_memalign needs to be implemented. Changed
liblibc to use freebsd as the OS instead of netbsd. Added a library with
unwind dummy functions.

Rust relies on atomic builtins, which are not implemented in libgcc for
ARM. One was implemented in rust, which was sufficient to get the
current rust test to run. Rust libs were added into the group of libs
for the linker so order no longer matters. The raspberry pi now uses an
armv6 target.
2016-05-23 15:49:56 +02:00
Norman Feske
ab88599682 base: document the return value of String::length 2016-05-23 15:49:56 +02:00
Norman Feske
fd401bdf53 Thread API cleanup
This patch cleans up the thread API and comes with the following
noteworthy changes:

- Introduced Cpu_session::Weight type that replaces a formerly used
  plain integer value to prevent the accidental mix-up of
  arguments.
- The enum definition of Cpu_session::DEFAULT_WEIGHT moved to
  Cpu_session::Weight::DEFAULT_WEIGHT
- New Thread constructor that takes a 'Env &' as first argument.
  The original constructors are now marked as deprecated. For the
  common use case where the default 'Weight' and 'Affinity' are
  used, a shortcut is provided. In the long term, those two
  constructors should be the only ones to remain.
- The former 'Thread<>' class template has been renamed to
  'Thread_deprecated'.
- The former 'Thread_base' class is now called 'Thread'.
- The new 'name()' accessor returns the thread's name as 'Name'
  object as centrally defined via 'Cpu_session::Name'. It is meant to
  replace the old-fashioned 'name' method that takes a buffer and size
  as arguments.
- Adaptation of the thread test to the new API

Issue #1954
2016-05-23 15:49:55 +02:00
Norman Feske
7b73d1d823 heap: add new-fashioned constructor 2016-05-09 13:25:11 +02:00
Norman Feske
1f395ae780 base: new interface for textual output
Issue #1942
2016-05-09 13:25:01 +02:00
Norman Feske
3bceefc9cf Omit superfluous use of "CAP"/"SIGNAL" services
The functionality of the former "CAP" and "SIGNAL" services is now
provided by core's "PD" service.
2016-05-09 13:24:51 +02:00
Norman Feske
dc8690ae37 Modularize base-internal headers
Issue #1952
2016-05-09 13:24:39 +02:00
Norman Feske
40a5af42eb Clean up base-library structure
This patch moves the base library from src/base to src/lib/base,
flattens the library-internal directory structure, and moves the common
parts of the library-description files to base/lib/mk/base.inc and
base/lib/mk/base-common.inc.

Furthermore, the patch fixes a few cosmetic issues (whitespace and
comments only) that I encountered while browsing the result.

Fixes #1952
2016-05-09 13:24:11 +02:00
Norman Feske
b8cd56cb90 Tweak slab allocators to use whole pages
Most slab allocators in core use a sliced heap as backing store. Since
sliced-heap allocations are performed at page-granularity, it is
sensible to dimension the slab blocks to fill whole pages.
2016-05-09 13:10:53 +02:00
Norman Feske
ba0545de07 Clean up 'Sliced_heap'
This patch cleans up the implementation of the sliced heap, adds a
constructor that takes references instead of pointers, and adds the
function 'meta_data_size' to determine the meta-data overhead per block.
The latter can be used to dimension slab allocators such that slab
blocks use whole pages.
2016-05-09 13:10:53 +02:00
Norman Feske
4f69772ecc Replace 'Env' interface with modern one
The original 'Env' interface as returned by 'Genode::env()' has been
renamed to 'Env_deprecated' and moved to deprecated/env.h. The new version
of base/env.h contains the interface passed to modern components that
use the component API via base/component.h.

Issue #1832
2016-05-09 13:10:52 +02:00
Norman Feske
7274ca997d Remove Genode::Process from API
This patch makes the former 'Process' class private to the 'Child'
class and changes the constructor of the 'Child' in a way that
principally enables the implementation of single-threaded runtime
environments that virtualize the CPU, PD, and RAM services. The
new interfaces has become free from side effects. I.e., instead
of implicitly using Genode::env()->rm_session(), it takes the reference
to the local region map as argument. Also, the handling of the dynamic
linker via global variables is gone. Now, the linker binary must be
provided as constructor argument.

Fixes #1949
2016-05-09 13:10:52 +02:00
Norman Feske
b49e588c1c Assign threads to PD at its creation time
This patch replaces the former 'Pd_session::bind_thread' function by a
PD-capability argument of the 'Cpu_session::create_thread' function, and
removes the ancient thread-start protocol via 'Rm_session::add_client' and
'Cpu_session::set_pager'. Threads are now bound to PDs at their creation
time and implicitly paged according to the address space of the PD.

Note the API change:

This patch changes the signature of the 'Child' and 'Process' constructors.
There is a new 'address_space' argument, which represents the region map
representing the child's address space. It is supplied separately to the
PD session capability (which principally can be invoked to obtain the
PD's address space) to allow the population of the address space
without relying on an 'Pd_session::address_space' RPC call.
Furthermore, a new (optional) env_pd argument allows the explicit
overriding of the PD capability handed out to the child as part of its
environment. It can be used to intercept the interaction of the child
with its PD session at core. This is used by Noux.

Issue #1938
2016-05-09 13:10:52 +02:00
Norman Feske
2bc8a0f76a Move XML util from os to base repository
Since the dynamic linker depends on the XML utils and we plan to replace
the ancient 'Arg_string' with XML, it is time to move the 'Xml_node' and
'Xml_generator' to base/include.
2016-05-09 13:10:52 +02:00
Norman Feske
73b463cdbb Signal_handler: remove num argument from handler
We will eventually remove the delivery of the number of occurred signals
to the recipient. There haven't been any convincing use cases for this
feature. In the contrary, it actually led to wrong design choices in the
past where the rate of signals carried information (such as the progress
of time) that should better be obtained via an explicit RPC call.

The old 'Signal_rpc_member' template retains the old interface for now.
But the new 'Signal_handler' omits the 'unsigned' argument from the
handler function.
2016-05-09 13:10:52 +02:00
Christian Helmuth
861508ad68 Always recreate library archives
GNU ar only uses a flat module (object) name space but supports multiple
instances of objects with the same name. As we use subdirectories with
source file names that may clash (e.g., signal/common.cc and
server/common.cc in the base library) some of our static library
archives have multiple object instances. This is not an issue on archive
creation but works not as expected when updating archives. To avoid
updates of library archives we delete the files before calling GNU ar.
2016-05-09 13:10:52 +02:00
Norman Feske
511acad507 Consolidate RM service into PD session
This patch integrates three region maps into each PD session to
reduce the session overhead and to simplify the PD creation procedure.
Please refer to the issue cited below for an elaborative discussion.

Note the API change:

With this patch, the semantics of core's RM service have changed. Now,
the service is merely a tool for creating and destroying managed
dataspaces, which are rarely needed. Regular components no longer need a
RM session. For this reason, the corresponding argument for the
'Process' and 'Child' constructors has been removed.

The former interface of the 'Rm_session' is not named 'Region_map'. As a
minor refinement, the 'Fault_type' enum values are now part of the
'Region_map::State' struct.

Issue #1938
2016-05-09 13:10:51 +02:00
Norman Feske
e20bbe7002 base: remove integer return codes from PD-session
The return code of assign_parent remained unused. So this patch
removes it.

The bind_thread function fails only due to platform-specific limitations
such as the exhaustion of ID name spaces, which cannot be sensibly
handled by the PD-session client. If occurred, such conditions used to
be reflected by integer return codes that were used for diagnostic
messages only. The patch removes the return codes and leaves the
diagnostic output to core.

Fixes #1842
2016-05-09 13:09:56 +02:00
Christian Helmuth
9cd26c4d61 Prevent compiler warnings 2016-04-25 10:48:02 +02:00
Martin Stein
cba6f5f298 base: no exit handler for libc stdout log console
We don't want Genode environment objects that register their destructor
for program exit as it is mostly unnecessary and easily produces
dangling pointers. Thus, use unmanaged_singleton instead of the static
keyword.

Fixes #1941
2016-04-25 10:48:02 +02:00
Christian Helmuth
7a64e0bb80 ldso: dump link map of loaded shared objects
Also log the link-map information of shared objects loaded after startup
if 'ld_verbose' is configured.
2016-04-25 10:48:01 +02:00
Martin Stein
9508f397a2 ldso: use get_page_size_log2 instead of "12"
Ref #1941
2016-04-25 10:48:01 +02:00
Martin Stein
a96130f20b base: get rid of alloc align default value
When using the Allocator interface, one can't tell which alignment
resulting allocations fulfill. However, at least on ARM, given the
architectural alignment requirements of ARM memory accesses, one wants
memory allocations (what allocators are for in most cases) to be word
aligned automatically. Previously, at least the AVL allocator simply
called alloc_aligned without defining align in its alloc implementation.
This led to unaligned access faults (the default was 0) when using the
AVL allocator as Allocator (as done in the metadata management of a SLAB
of an AVL that uses the AVL as backing store). To avoid such pitfalls
in the future, we force users of alloc_aligned to always specify align
(why use alloc_aligned without align anyway).

Ref #1941
2016-04-25 10:48:01 +02:00
Johannes Schlatow
5b12034531 hw_zynq: refactor specs
This is a generalisation approach of the hw_zynq target. As the boards
typically use UART1 instead of UART0 (used by qemu), we have to
distinguish between those. Moreover, in general hw_zynq does not imply
zynq_qemu anymore, so that the support of particular boards can be
placed in third-party or community repositories (e.g. Genode world).

Fixes #1926
2016-04-25 10:48:00 +02:00
Norman Feske
05e09a6116 Improve warning message 2016-04-25 10:48:00 +02:00
Norman Feske
f186587cab Unify ipc_msgbuf.h across base platforms
Besides unifying the Msgbuf_base classes across all platforms, this
patch merges the Ipc_marshaller functionality into Msgbuf_base, which
leads to several further simplifications. For example, this patch
eventually moves the Native_connection_state and removes all state
from the former Ipc_server to the actual server loop, which not only
makes the flow of control and information much more obvious, but is
also more flexible. I.e., on NOVA, we don't even have the notion of
reply-and-wait. Now, we are no longer forced to pretend otherwise.

Issue #1832
2016-04-25 10:47:59 +02:00
Norman Feske
0c299c5e08 base: separate native CPU from CPU session
This patch unifies the CPU session interface across all platforms. The
former differences are moved to respective "native-CPU" interfaces.

NOVA is not covered by the patch and still relies on a custom version of
the core-internal 'cpu_session_component.h'. However, this will soon be
removed once the ongoing rework of pause/single-step on NOVA is
completed.

Fixes #1922
2016-04-25 10:47:57 +02:00
Norman Feske
e9dec93f4b base: optimized slab allocator
This patch changes the organization of the slab blocks within the slab
allocator. Originally, blocks were kept in a list sorted by the number
of free entries. However, it turned out that the maintenance of this
invariant involves a lot of overhead in the presence of a large number
of blocks. The new implementation manages blocks within a ring in no
particular order and maintains a pointer to the block where the next
allocation is attempted. This alleviates the need for sorting blocks
when allocating and deallocating.

Fixes #1908
2016-04-25 10:47:56 +02:00
Norman Feske
fbc35cb796 base: hide slab implementation details from API
Issue #1908
2016-04-25 10:47:56 +02:00
Norman Feske
db5969e6cc Stress test for the slab allocator
Issue #1908
2016-04-25 10:47:55 +02:00
Norman Feske
7cf40a0971 allocator_avl: hand back meta data when destructed
This patch ensures that the 'Allocator_avl' releases all memory obtained
from the meta-data allocator at destruction time. If allocations are
still dangling, it produces a warning, hinting at possible memory leaks.
Finally, it properly reverts all 'add_range' operations.
2016-04-25 10:47:55 +02:00
Norman Feske
ed37c2ecff core: use copy of region metadata in detach
This patch fixes a use-after-free problem raised by the recent ability of
the slab allocator to dynamically release empty slab blocks. The
Rm_session_component::detach function used to rely on the assumption
that the region metadata co-located with the allocator metadata of the
'_map' would stay intact even after a 'free' if the region.
2016-04-25 10:47:55 +02:00
Norman Feske
8971bb25ce heap: release ds pool meta data when destructed
This patch makes sure that the dataspace pool is flushed before
destructing the heap-local allocator-avl instance. With the original
destruction order, the allocator would still contain dangling
allocations on the account of the dataspace pool when destructed. In
practice, this caused no problem because the underlying backing store is
eventually freed on the destruction of the pool. But it triggers a
runtime warning of the allocator since it has become more strict with
regard to dangling allocations.
2016-04-25 10:47:55 +02:00
Emery Hemingway
d1dc5a9071 utility to retrieve aligned sizes from arg strings
Issue #1751
2016-04-25 10:47:52 +02:00
Timo Wischer
3e1fa54c61 sd_card: generalise RPi sd card driver
This enables to reuse the driver for zynq (and other platforms) in the
future.

Fixes #1925
2016-04-11 12:12:23 +02:00
Norman Feske
051e84c4b4 Move server API concept to base framework
This commit introduces the new `Component` interface in the form of the
headers base/component.h and base/entrypoint.h. The os/server.h API
has become merely a compatibilty wrapper and will eventually be removed.
The same holds true for os/signal_rpc_dispatcher.h. The mechanism has
moved to base/signal.h and is now called 'Signal_handler'.

Since the patch shuffles headers around, please do a 'make clean' in the
build directory.

Issue #1832
2016-04-11 11:51:46 +02:00
Christian Helmuth
0cacd41823 base: forward arguments in unmanaged_singleton
This enables the use of reference types for constructor arguments.
2016-04-11 11:51:44 +02:00
Christian Prochaska
146c694513 Reduce the maximum LOG session string length
The maximum possible string length is defined by the platform with the
lowest maximum IPC payload size (currently OKL4).

Fixes #1919
2016-04-11 11:51:43 +02:00
Johannes Schlatow
d32b5a54b6 base: remove duplicates from dependency list
This patch prevents duplicates in the DEPS argument to be passed to the build
stage.

Fixes #1916
2016-04-11 11:51:43 +02:00
Norman Feske
cda07b7da0 base: simplification of the IPC code
This commit replaces the stateful 'Ipc_client' type with the plain
function 'ipc_call' that takes all the needed state as arguments.
The stateful 'Ipc_server' class is retained but it moved from the public
API to the internal ipc_server.h header. The kernel-specific
implementations were cleaned up and simplified. E.g., the 'wait'
function does no longer exist. The badge and exception code are no
longer carried in the message buffers but are handled in kernel-specific
ways.

Issue #610
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
47878bd3e1 Remove 'Ipc_istream' and 'Ipc_ostream' from API
Fixes #610
2016-04-11 11:51:42 +02:00
Norman Feske
4cdfb9bc2f base: remove 'Native_connection_state' from API
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
da5d182ad3 base: remove 'Native_thread' from public API
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
9b0eb720b0 base: remove 'Native_utcb' from public API
Fixes #1905
2016-03-17 17:02:04 +01:00
Waylon Cude
28117fee12 Added rust support
Rust relies on atomic builtins, which are not implemented in libgcc for
ARM. One is implemented in rust, which is sufficient to get the
current rust test to run.

Issue #1899
2016-03-17 17:02:04 +01:00
Norman Feske
9a3185f8ed base-linux: remove chroot support
Fixes #1903
2016-03-08 17:00:54 +01:00
Norman Feske
76db3b9c06 base: retire 'Native_config'
This commit moves the parameters of the stack area to the base-internal
header 'stack_area.h'.

Issue #1832
2016-03-08 17:00:54 +01:00
Josef Söntgen
2490e399dc ldso: check binary pointer before lookup
Check if the binary pointer is valid before attempting to lookup the
symbol. Shared objects with unresolved symbols and missing depencies,
e.g a library that references 'errno' but is not linked against libc,
will now produce an error message when they are loaded by the dynamic
linker.

Fixes #1904.
2016-03-08 17:07:36 +01:00
Emery Hemingway
f46a504bb6 use Arg_string::set_arg_string to set session labels
Issue #1861
2016-03-07 16:10:32 +01:00
Emery Hemingway
723d9e7784 util/arg_string.h: set_arg_string
Convenience function to set x="y" style arguments.

Issue #1861
2016-03-07 16:10:32 +01:00
Christian Helmuth
688e86ab68 core: increase initial quota to 224K 2016-03-07 12:34:47 +01:00
Norman Feske
7f73e5e879 base: hide internals of the Thread API
This patch moves details about the stack allocation and organization
the base-internal headers. Thereby, I replaced the notion of "thread
contexts" by "stacks" as this term is much more intuitive. The fact that
we place thread-specific information at the bottom of the stack is not
worth introducing new terminology.

Issue #1832
2016-03-07 12:34:46 +01:00
Norman Feske
3473955212 base-linux/nova: unify include/rm_session/client.h
By moving the stub implementation to rm_session_client.cc, we can use
the generic base/include/rm_session/client.h for base-linux and
base-nova and merely use platform-specific implementations.

Issue #1832
2016-03-07 12:34:45 +01:00
Norman Feske
6e7f7bdad4 base: move crt0.h and elf.h to base/internal
Those headers remained unused outside the internal framework. So it is
better to remove them from the public API.

Issue #1832
2016-03-07 12:34:45 +01:00
Norman Feske
2e701f9afa base: update include guards
This patch cleans up the include guards, assisted by the
tool/fix_include_ifndef script.
2016-03-07 12:34:45 +01:00
Norman Feske
e6729316ff base: uniform base-internal header structure
This patch establishes a common organization of header files
internal to the base framework. The internal headers are located at
'<repository>/src/include/base/internal/'. This structure has been
choosen to make the nature of those headers immediately clear when
included:

  #include <base/internal/lock_helper.h>

Issue #1832
2016-03-07 12:34:45 +01:00
Norman Feske
be496c6dc1 base: remove kernel-specific base/sleep.h
With this patch, the platform differences reside solely in the
implementation of the base library.

Issue #1832
2016-03-07 12:34:44 +01:00
Norman Feske
62b1c55399 Integrate CAP session into PD session
This patch integrates the functionality of the former CAP session into
the PD session and unifies the approch of supplementing the generic PD
session with kernel-specific functionality. The latter is achieved by
the new 'Native_pd' interface. The kernel-specific interface can be
obtained via the Pd_session::native_pd accessor function. The
kernel-specific interfaces are named Nova_native_pd, Foc_native_pd, and
Linux_native_pd.

The latter change allowed for to deduplication of the
pd_session_component code among the various base platforms.

To retain API compatibility, we keep the 'Cap_session' and
'Cap_connection' around. But those classes have become mere wrappers
around the PD session interface.

Issue #1841
2016-03-07 12:34:44 +01:00
Norman Feske
b1910cdd54 Integrate SIGNAL session into PD session
This patch removes the SIGNAL service from core and moves its
functionality to the PD session. Furthermore, it unifies the PD service
implementation and terminology across the various base platforms.

Issue #1841
2016-03-07 12:34:44 +01:00
Norman Feske
5d559a0699 Move util/volatile_object.h from os to base 2016-03-07 12:34:44 +01:00
Martin Stein
ff10687a6c toolchain: report missing ports at once
Previously, ports that were needed for a scenario and that were not
prepared or outdated, triggered one assertion each during the second
build stage. The commit slots a mechanism in ahead that gathers all
these ports during the first build stage and reports them in form of a
list before the second build stage is entered.  This list can be used
directly as argument for tool/ports/prepare_port to prepare respectively
update the ports. If, however, this mechanism is not available, for
example because a target is build without the first build stage, the old
assertion still prevents the target from running into troubles with a
missing port.

Fixes #1872
2016-03-07 12:34:43 +01:00
Reto Buerki
f1d2d7251d hw_x86_64_muen: Include static ACPI report ROM
Enable the ACPI functionality in the platform_drv on hw_x86_64_muen and
provide a simple generated XML report as ROM session in order to make
the PCI configuration space available.

This is a requirement to implement support for MSI on hw_x86_64_muen.
2016-02-26 11:36:53 +01:00
Sebastian Sumpf
d17134baef ldso: Support for RISC-V
issue #1880
2016-02-26 11:36:51 +01:00
Sebastian Sumpf
8c6e3c6251 riscv: create_builddir support
issue #1880
2016-02-26 11:36:50 +01:00
Sebastian Sumpf
d424134073 cxx: Simplify C++ exception wrapper functions
The wrapper functions (e.g., 'Unwind_*' and friends) now have the same signature
as the original function in 'libgcc', reside in a separate C file which is
archived to cxx.lib.a. In supc++.o we prefix the wrapped functions with '_cxx_'.

This also enables support for riscv.

related to #1880
2016-02-16 14:38:02 +01:00
Sebastian Sumpf
bfe5208e0e base: Align heap/slab allocation to machine word size
required by riscv

related to #1880
2016-02-16 14:38:02 +01:00
Christian Helmuth
2a698ffd5f signal: prevent submission of contexts w/o receiver
This prevents a sporadic null-pointer dereference in the nic_loopback
test, which occurred once in 100 runs. I'm not sure if there's still a
race window (we may investigate) with context dissolve.
2016-01-26 16:20:47 +01:00
Alexander Boettcher
0423369f7f base: Unbound_thread exception in rm::add_client 2016-01-26 16:20:38 +01:00
Stefan Kalkowski
b0b4c3c7fa noux: consider stack alignment constraints
The interim stack in a forked noux process has to consider the architecture
dependent stack alignment constraints.

Fix #1852
2016-01-26 16:20:37 +01:00
Stefan Kalkowski
7aff1895bf hw: enable SMP for ARM Cortex A9
This commit enables multi-processing for all Cortex A9 SoCs we currently
support. Moreover, it thereby enables the L2 cache for i.MX6 that was not
enabled until now. However, the QEMU variants hw_pbxa9 and hw_zynq still
only use 1 core, because the busy cpu synchronization used when initializing
multiple Cortex A9 cores leads to horrible boot times on QEMU.

During this work the CPU initialization in general was reworked. From now
on lots of hardware specifics were put into the 'spec' specific files, some
generic hook functions and abstractions thereby were eliminated. This
results to more lean implementations for instance on non-SMP platforms,
or in the x86 case where cache maintainance is a non-issue.

Due to the fact that memory/cache coherency and SMP are closely coupled
on ARM Cortex A9 this commit combines so different aspects.

Fix #1312
Fix #1807
2016-01-26 16:20:18 +01:00
Martin Stein
c58de0d80e hw_panda: driver for Cortex-A9 wakeup generator
Ref #1312
2016-01-15 16:42:12 +01:00
Stefan Kalkowski
23f9761297 base: minimize critical section in Semaphore::up
When unblocking a thread in Semaphore::up() while holding the fifo meta-data
lock, it might happen that the lock holder gets destroyed by the one it was
unblocking. This happened for instance in the pthread test in the past, where
thread destruction was synchronized via a semaphore. There is no need to hold
the lock during the unblock operation, so we should do it outside the critical
section.

Fix #1333
2015-12-10 13:16:27 +01:00
Martin Stein
492bd39619 epit timer: raise precision
Previously we used a pretty slow external clock source for the timer. This
resulted in such a low TICS_PER_MS value that the granularity wasn't
sufficient to find a setup with a precision better than 1 second error per
minute. Now we use the so-called High Frequency Reference Clock as input
with TICS_PER_MS=33333 and the timer precision is significantly < 1 second per
minute.

Fixes #1805
2015-12-10 13:16:26 +01:00
Sebastian Sumpf
41b9f6bd03 ldso: Make truly self relocatable
On Linux the linker can now be loaded at arbitrary addresses, this became
necessary for newer kernel versions. The 'linux_arm' target is not supported.

Issue #1728
2015-12-10 13:16:25 +01:00
Stefan Kalkowski
d65beb970d dde_linux: KMS-based Intel framebuffer driver (II)
* enable i915 driver from Linux 3.14.5
* tested for generation 5 till 8 GPUs

The driver can be configured at run-time via the config ROM. Every
connector of the graphic card can be configured separately using the
following syntax

  <config>
    <connector name="LVDS-11" width="1280" height="800" enabled="true"/>
  </config>

Also, when enabled within the intel framebuffer driver configuration like
the following

  <config buffered="yes"/>

a simple ram dataspace is propagated to the client and the driver
itselfs copies from that buffer to the framebuffer triggered via refresh
calls. This option is useful to alleviate tearing effects.

The  driver distributes all available connectors of the graphic card and
their supported resolutions via a report. It looks like follows

  <connectors>
    <connector name="LVDS-11" connected="1">
      <mode width="1280" height="800" hz="60"/>
      ...
    </connector>
    ...
  </connectors>

The driver distributes the report only if this is stated within its
configuration, like the following

  <config>
    <report connectors="yes"/>
  </config>

Fix #1764
2015-11-29 18:17:07 +01:00
Alexander Boettcher
e49a5ee19f base: make reference ram cap part of child policy
Issue #1539
2015-11-27 12:18:54 +01:00
Sebastian Sumpf
0c3dfbad65 base-hw: use signal context list for pending signals
'block_for_signal' and 'pending_signal' now set pending flag in signal context
in order to determine pending signal. The context list is also used by the
'Signal_receiver' during destruction.

Fixes #1738
2015-11-27 12:18:50 +01:00
Alexander Boettcher
c7df65e1da base: invalidate thread cap if task creation fails
Issue #1778
2015-11-18 12:22:09 +01:00
Alexander Boettcher
3789a75ed6 base: support ascii_to for uint64_t
Issue #1764
2015-11-18 12:22:07 +01:00
Christian Helmuth
a0d92fcdb8 platform_drv: increase RAM config for -O0 builds 2015-11-18 12:22:05 +01:00
Norman Feske
82991ba378 base: fix warning in console.cc 2015-11-04 13:49:01 +01:00
Alexander Boettcher
f42f946f3b base: support parsing multiboot for phys. memory
Issue #1741
2015-11-04 14:09:27 +01:00
Alexander Boettcher
7ea5884ffc base: use mmio framework for multiboot handling
Issue #1741
2015-11-04 14:09:26 +01:00
Norman Feske
96d021b9d4 base: char const * comparison operators for String 2015-11-03 17:04:16 +01:00
Alexander Boettcher
f9fbe34644 base: avoid detaching not attached trace_control 2015-10-28 15:06:23 +01:00
Alexander Boettcher
c4f8af2665 hw_zynq: limit cpu count to 1 in mp_server.run
qemu says:

Number of SMP cpus requested (2), exceeds max cpus supported by machine `xilinx-zynq-a9' (1)
2015-10-28 15:06:22 +01:00
Sebastian Sumpf
2b429ee84c base: Dispatch server signal in entry point
Currently, when a signal arrives in the main thread, the signal dispatcher is
retrieved and called from the main thread, the dispatcher uses a proxy object
that in turn sends an RPC to the entry point. This becomes a problem when the
entry point destroys the dispatcher object, before the dispatch function has
been called by the main thread. Therefore, the main thread should simply send an
RPC to the entry point upon signal arrival and the dispatching should be handled
solely by the entry point.

Issue #1738
2015-10-28 15:06:22 +01:00
Alexander Boettcher
2e62543fdb nova: use remote revoke
Fixes #1733
2015-10-09 16:38:48 +02:00
Emery Hemingway
df0bbe0b0e ascii_to() utility for boolean values
Also, Genode::Arg was adapted to use the new utility for boolean tokens
and strings.

Issue #1648
2015-10-09 16:35:30 +02:00
Alexander Boettcher
286edaed68 base: detect and stop self de-structing threads
Issue #1687
2015-10-06 12:18:51 +02:00
Stefan Kalkowski
c1492da15b base: do not lock interleaved in object pool
Holding the object pool's lock while trying to obtain an object's lock
can leave to dead-lock situations, when more than one thread tries to
access multiple objects at once (e.g.: when transfer_quota gets called
simultanously by the init and entrypoint thread in core). To circumvent
holding the object pool lock too long, but access object pointers safely
on the other hand, this commit updates the object pool implementation
to use weak pointers during the object retrieval.

Fix #1704
2015-09-30 12:20:41 +02:00
Stefan Kalkowski
b585583ec7 core: do not destroy in object pool's apply scope
Destroying an object within the scope of a lambda/functor executed
in the object pool's apply function leads potentially to memory corruption.
Within the scope the corresponding object is locked and unlocked when
leaving the scope. Therefore, it is illegal to free the object's memory meanwhile.
This commit eliminates several places in core that destroyed wrongly in
the object pool's scope.

Fix #1713
2015-09-30 12:20:40 +02:00
Stefan Kalkowski
ccb968ff7d safeguard the synchronized allocator template
* Move the Synced_interface from os -> base
* Align the naming of "synchronized" helpers to "Synced_*"
* Move Synced_range_allocator to core's private headers
* Remove the raw() and lock() members from Synced_allocator and
  Synced_range_allocator, and re-use the Synced_interface for them
* Make core's Mapped_mem_allocator a friend class of Synced_range_allocator
  to enable the needed "unsafe" access of its physical and virtual allocators

Fix #1697
2015-09-30 12:20:39 +02:00
Alexander Boettcher
9b21c88bc6 base: handle unsupported printf commands better
The commit consumes the argument of a unsupported printf command.

Without the commit - a subsequent command uses the argument of the preceding
command, which may cause memory corruption or page faults for sequences using
string commands, e.g.

Genode::printf("%#x %s\n", 0x20, "Test");

'#' is not supported by Genode::printf. In this scenario a pagefault at
address 0x20 is caused.

Fixes #1701
2015-09-30 12:20:38 +02:00
Alexy Gallardo Segura
de87ecfc62 foc_odroid_x2: basic configuration for gpio pins
Fixes #1669
2015-09-30 12:20:38 +02:00
Alexy Gallardo Segura
49b3d520a9 exynos: generalize Exynos5 fb_drv for Exynos4/5
Fixes #1678
2015-09-30 12:20:37 +02:00
Stefan Kalkowski
ed52d5a211 Introduce 'spec' subdirectories to outline aspects
Instead of holding SPEC-variable dependent files and directories inline
within the repository structure, move them into 'spec' subdirectories
at the corresponding levels, e.g.:

  repos/base/include/spec
  repos/base/mk/spec
  repos/base/lib/mk/spec
  repos/base/src/core/spec
  ...

Moreover, this commit removes the 'platform' directories. That term was
used in an overloaded sense. All SPEC-relative 'platform' directories are
now named 'spec'. Other files, like for instance those related to the
kernel/architecture specific startup library, where moved from 'platform'
directories to explicit, more meaningful places like e.g.: 'src/lib/startup'.

Fix #1673
2015-09-16 13:58:50 +02:00
Stefan Kalkowski
acc46f70b7 codezero: remove support from Genode (fix #1668) 2015-09-09 15:14:29 +02:00
Johannes Schlatow
40b31876d2 base-hw: Add basic Zynq-7000 support (QEMU)
Ref #1599
2015-09-09 15:14:28 +02:00
Stefan Kalkowski
458b4d6fc4 base: redesign object pool using lambda interface
Instead of returning pointers to locked objects via a lookup function,
the new object pool implementation restricts object access to
functors resp. lambda expressions that are applied to the objects
within the pool itself.

Fix #884
Fix #1658
2015-09-09 15:14:28 +02:00
Alexander Boettcher
c5877b5575 hw: remove access_thread_regs syscall
Issue #1652
2015-09-09 15:14:27 +02:00
Alexander Boettcher
6e481127ce hw: increase stack size for thread test
Stack size of cpu helper is insufficient if a exception is thrown during
'test_create_as_many_threads()'

Related to #1652
2015-09-09 15:14:27 +02:00
Christian Helmuth
ae43d13b90 Remove always_hybrid spec
With always_hybrid also the lx_hybrid_x86 platform in
tool/create_builddir vanishes.

Fixes #1619
2015-09-09 15:14:27 +02:00
Reinier Millo Sánchez
98da445269 gpio: RaspberryPI GPIO driver
Fixes #1654
2015-08-31 09:09:23 +02:00
Reinier Millo Sánchez
433f859cb9 foc_odroid_x2: USB support
Fixes #1627
2015-08-31 09:09:22 +02:00
Christian Helmuth
10aba44982 thread: increase test timeout
Because of recently added test cases the script exceeds the timeout on
some embedded boards and base-hw.
2015-08-24 11:38:53 +02:00
Adrian-Ken Rueegsegger
c2ff0ae9d4 Minor cleanup fixes
- Fix spelling errors
- Remove extra semicolons
- Remove extra spaces

Fixes #1650
2015-08-21 11:00:59 +02:00
Norman Feske
b4e3e99cc8 base: add Weak_object::weak_ptr const
Issue #1649
2015-08-21 11:00:58 +02:00
Josef Söntgen
4992903233 Rename audio_out_drv to audio_drv
With the introducation of the Audio_in session interface it makes
sense to rename the current available audio drivers. At the moment
only the dde_bsd audio_drv supports Audio_out as well as Audio_in.
The Linux audio_drv only supports Audio_out (there is no demand for
Audio_in support currently) but is renamed nonetheless to make it
easiert to write generic run scripts.

Issue #1644.
2015-08-21 10:59:46 +02:00
Stefan Kalkowski
eafe5e81e3 core: unify and simplify paging code (Fix #1641)
For most platforms except of NOVA a distinction between pager entrypoint
and pager activation is not needed, and only exists due to historical
reasons. Moreover, the pager thread's execution path is almost identical
between most platforms excluding NOVA, HW, and Fisco.OC. Therefore,
this commit unifies the pager loop for the other platforms, and removes
the pager activation class.
2015-08-21 10:58:59 +02:00
Alexander Boettcher
626b0a68f3 base: increase base-control size for 32bit
It is insufficient for creating threads up to the maximum supported limit
(256 by now).

Issue #1601
2015-08-21 10:58:58 +02:00
Alexander Boettcher
9081653c96 Extend thread test
Issue #1601
2015-08-21 10:58:58 +02:00
Alexander Boettcher
fe4e0702d4 base: contain chunk_size heap consumption
Increase internal chunk size of heap only if an allocation succeeded
beforehand. Otherwise the chunk size increases with every unsuccessful
invocation and a upgrade of the used ram session will be insufficient and of
no use at all.

Fixes #1632
2015-07-21 09:36:46 +02:00
Martin Stein
f3e76b3e9a base: use BDA header in base-nova like base-hw
Moves the Bios Data Area header from base-hw to base. Modifies the
base-nova core console that it uses the header as replacement for
the previous BDA bit logic.

Ref #1625
2015-07-21 09:30:12 +02:00
Martin Stein
c6f73d365a unmanaged singleton: allow private constructors
Introduces a class Unmanaged_singleton_constructor that can be declared as
friend to be able to call unmanaged_singleton on classes with a private
constructor. Enables the appliance of the singleton pattern.

Ref #1625
2015-07-21 09:30:12 +02:00
Alexander Boettcher
0b019d0508 base: move x86 uart driver from nova to base
So it can be reused by base-hw-x86 instead of re-writing it.

Fixes #1403
2015-07-21 09:30:11 +02:00
Stefan Kalkowski
0f05fa6fd4 base: resolve dead lock in weak pointer templates
This commit eliminates the mutual interlaced taking of destruction lock,
list lock and weak pointer locks that could lead to a dead-lock situation
when a lock pointer was tried to construct while a weak object is in
destruction progress.
Now, all weak pointers are invalidated and dequeued at the very
beginning of the weak object's destruction. Moreover, before a weak pointer
gets invalidated during destruction of a weak object, it gets dequeued, and
the list lock is freed again to avoid the former dead-lock.

Fix #1607
2015-07-21 09:30:04 +02:00
Josef Söntgen
7e40f5f587 base: use proper Cpu_session when tracing threads
Up to now it was not possible to trace threads that use a different
Cpu_session rather than env()->cpu_session() (as done by VirtualBox).
This problem is now solved by setting the Cpu_session explicitly when
creating the event logger and attaching the trace control area when
creating the thread.

Fixes #1618.
2015-07-21 09:28:26 +02:00
Alexy Gallardo Segura
c14fe7e6c7 foc: Odroid-X2 basic support
Fix #1597
2015-07-21 09:28:25 +02:00
Alexander Boettcher
c42e770384 detach ds from all rm sessions before destruction
Fixes #1617
2015-07-21 09:28:24 +02:00
Norman Feske
0cd93c64aa ldso: add lx_environ to symbol map
This symbol must be exported to build dynamically-linked executables on
the lx_hybrid_x86 base platform.
2015-07-07 19:48:07 +02:00
Stefan Kalkowski
c951c30d8a base: extend weak pointer test (Ref #1607)
Add a test where a locked pointer shall be taken during object destruction.
Moreover, extend the run-script so it runs on different platforms with
"real" timers.
2015-07-07 19:48:06 +02:00
Stefan Kalkowski
89255c3979 remove Versatile Express board (Fix #1611) 2015-07-07 19:48:06 +02:00
Emery Hemingway
46b7227ef0 cxx: notify parent on abort() (in main thread)
Fixes #1605
2015-07-01 15:09:32 +02:00
Stefan Kalkowski
691df908aa core: remove Rm_member from RM session component
Rm_member does not fulfill a useful role, but makes understanding of
the RM session component more difficult.

Ref #956
2015-07-01 14:46:17 +02:00
Stefan Kalkowski
dc36b63acb base: turn align_addr tool into constexpr
Thereby, the tool can be used to calculate static compile-time values.
Ref #1588
2015-07-01 14:46:17 +02:00
Stefan Kalkowski
b856bfdfcd base: let bit allocator use fine-grained sizes
Ref #1588
2015-07-01 14:46:17 +02:00
Christian Helmuth
11c31c4432 Prevent silly text-segment alignment on all platforms
We set 'ld -z max-page-size' to 4KiB to prevent the linker from aligning
the text segment to any built-in default (e.g., 4MiB on x86_64 or 64KiB
on ARM). Otherwise, the padding bytes are wasted at the beginning of the
final binary.
2015-07-01 14:46:16 +02:00
Stefan Kalkowski
2a351215f4 base: remove pager code from public API
Fix #1593
2015-07-01 14:46:15 +02:00
Norman Feske
e143084b04 base: fix warning in RPC framework
The recent change of the TRACE session interface triggered the
following warning:

/home/no/src/genode/repos/base/include/base/ipc.h:79:4: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized]
    *reinterpret_cast<T *>(&_sndbuf[_write_offset]) = value;
    ^
In file included from /home/no/src/genode/repos/base/src/core/include/trace/session_component.h:19:0,
                 from /home/no/src/genode/repos/base/src/core/trace_session_component.cc:15:
/home/no/src/genode/repos/base/include/base/rpc_server.h:132:42: note: ‘ret’ was declared here
     typename This_rpc_function::Ret_type ret;

The warning occurs for basic return types (like size_t), which are
indeed not initialized. The variable gets its value assigned by the
corresponding 'call_member' overload, to which the variable is passed as
reference. But the compiler apparently is not able to detect this assignment.

Declaring 'ret' with a C++11-style default initializer fixes the warning.
2015-06-22 14:43:40 +02:00
Norman Feske
5d678dba9e core: throw Trace::Out_of_metadata in subjects()
While importing trace sources as trace subjects into a TRACE session,
the session quota might become depleted. The TRACE session already keeps
track of the session quota via an allocator guard but the 'subjects' RPC
function missed to handle the out-of-memory condition. This patch
reflects the error condition as an 'Out_of_metadata' exception to the
TRACE client. It also contains an extension of the trace test to
exercise the corner case.
2015-06-22 14:43:39 +02:00
Alexander Boettcher
705257cf22 cxx: show thread name in event of abort
Issue #1591
2015-06-22 14:43:39 +02:00
Norman Feske
a23ac5f569 base/nova: add idle threads to trace sources
Issue #813
2015-06-22 14:43:39 +02:00
Norman Feske
959572968d core: provide thread exec times via TRACE service
This patch enable clients of core's TRACE service to obtain the
execution times of trace subjects (i.e., threads). The execution time is
delivered as part of the 'Subject_info' structure.

Right now, the feature is available solely on NOVA. On all other base
platforms, the returned execution times are 0.

Issue #813
2015-06-22 14:43:38 +02:00
Norman Feske
2d8a4917a5 base: add Trace::Subject_info::state_name
Issue #813
2015-06-22 14:43:37 +02:00
Josef Söntgen
80893dfcfc platform_drv: specific AUDIO/HDAUDIO class aliases
The alias AUDIO matches audio multimedia device while the HDAUDIO
alias matches HD audio multimedia devices.

Fixes #1581
2015-06-22 14:43:37 +02:00
Christian Prochaska
4cae6c0d12 cxx: report names of uncaught exceptions again
Fixes #1582
2015-06-22 14:43:37 +02:00
Norman Feske
5317cca031 base/allocator.h: clarify use of delete operator
Issue #1571
2015-06-22 14:43:35 +02:00
Stefan Kalkowski
409ac1468e core: implement core allocator's free (ref #1573) 2015-06-22 14:43:35 +02:00
Alexander Boettcher
1f40d9de6a pci: convert to platform_drv
Fixes #1542
2015-06-22 14:43:34 +02:00
Norman Feske
4f927f651b core: handle IRQ sessions by separate entrypoint
Fixes #1572
2015-06-22 14:43:34 +02:00
Alexander Boettcher
1c38d4903b x86: use report_rom for acpi and pci driver
Issue #1542
2015-06-09 11:00:12 +02:00
Norman Feske
ef9c745e42 ldso: add memcpy and memset to symbol.map
On ARM, the compiler generates calls to memcpy and memset. Most
dynamically linked programs use the libc, which provides these
functions. However, if a dynamically linked program does not use the
libc (e.g., noux/minimal or the new version of cli_monitor), those
symbols remain unresolved. By adding them to ldso's symbol.map, the
dynamic linker will resolve them with the functions of the cxx
library, which is part of the dynamic linker.

Issue #1561
2015-06-09 11:00:11 +02:00
Alexander Boettcher
e1896e3b44 run: add platform_drv include for usage by scripts
Related to #765 and used for issue #1542
2015-06-09 11:00:10 +02:00
Stefan Kalkowski
28804e2bfb base: remove cap_integrity test (fix #1536) 2015-05-26 09:40:04 +02:00
Stefan Kalkowski
554146d39c base: enforce ram_quota donations to be consistent
For several basic sessions that core provides default ram quota values
exist in the form of enum values. They are used e.g. by init to deduce
session costs. Unfortunately they were not used when actually establishing
the session, which lead to inconsistencies.

Ref #1443
2015-05-26 09:40:03 +02:00
Stefan Kalkowski
a93266548f base: remove unused enum from object pool
Ref #1443
2015-05-26 09:40:03 +02:00
Stefan Kalkowski
217f62b89d base: move retry template function to util header
Ref #1443
2015-05-26 09:40:03 +02:00
Stefan Kalkowski
64bfe233d7 base: make CAP session upgradeable
* Introduce 'Out_of_metadata' exception for capability allocation

Ref #1443
2015-05-26 09:40:02 +02:00
Stefan Kalkowski
73c3a81e0b base: make PD session upgradeable
Ref #1443
2015-05-26 09:40:02 +02:00
Norman Feske
35a52f0282 base: const qualifiers in base/trace/types.h
This patch adds missing const qualifiers to the == operators of
'Subject_id' and 'Policy_id'. Thanks to Pirmin Duss for reporting.
2015-05-26 09:39:53 +02:00
Christian Helmuth
8990346c6c mmio: fix compiler warnings
We implicitly know that the value range will not exceed access_t despite
the integer-based arithmetics, i.e., negation and shift operations.

Fixes #1524
2015-05-26 09:39:53 +02:00
Norman Feske
e2fe071871 Minor comment refinements for the manual 2015-05-26 09:39:50 +02:00
Christian Prochaska
72e31090ee tool_chain: update GCC to version 4.9.2
Fixes #1520
2015-05-26 09:39:49 +02:00
Christian Prochaska
2706e4cd75 tool_chain: cleanup
Fixes #1517
2015-05-26 09:39:49 +02:00
Alexander Boettcher
e84284c0cd base: remove shared irq from core
Cleanup commit after all relevant drivers got adapted to use the x86 platform
driver (pci_drv).

Issue #1471
2015-05-26 09:39:47 +02:00
Alexander Boettcher
3783db66e2 base: implement detach for core context_area
Required to destroy threads within in core. Used when IRQs get reused on
platforms where every IRQ needs a thread in core.

Issue #1471
2015-05-26 09:39:47 +02:00
Christian Prochaska
3a378bb970 libc_noux: remove dependency on 'platform_env.h'
Currently, libc_noux includes the 'base/src/base/env/platform_env.h' file
to be able to reinitialize the environment using the 'Platform_env'
interface. For base-linux, a special version of this file exists and the
inclusion of the generic version in libc_noux causes GCC 4.9 to make wrong
assumptions about the memory layout of the 'Env' object returned by
'Genode::env()'.

This commit moves the reinitialization functions to the 'Env' interface to
avoid the need to include the 'platform_env.h' file in libc_noux.

Fixes #1510
2015-05-26 09:39:47 +02:00
Adrian-Ken Rueegsegger
96149db858 base: Add #UD exception to x86_64 Cpu_state 2015-05-20 17:52:59 +02:00
Norman Feske
4736488d99 core: change order of _export_ds and _clear_ds
On seL4, we need to convert untyped memory to page frames before being
able to use it as normal memory. There already exists the hook function
'_export_ds' that is principally suitable for such tasks. It is
currently solely used on Linux where we have to create a file for each
dataspace. To make the hook useful also for seL4, we need to call
_export_ds prior _clear_ds. Otherwise, we would try to clear memory that
is still untyped.
2015-05-20 17:52:57 +02:00
Alexander Boettcher
d998df3b7f base: extend irq session to support MSIs
Works on base-nova and base-foc, the other kernels have no MSI support.

Issue #1216
2015-05-20 17:39:14 +02:00
Norman Feske
c1cb3a6642 Increase initial block for cxx malloc
This patch avoids the attempt to extend the cxx-local heap during the
startup phase of an application. Originally, the static part of the cxx
was merely 100 bytes, which did not suffice to run the minimalistic test
roottask on seL4.
2015-05-06 11:32:06 +02:00
Norman Feske
89e987b22e base/x86_32: preserve EBX value in crt0 2015-05-06 11:32:06 +02:00
Alexander Boettcher
0ed45d92ff base: string length handling fix in Rpc_in_buffer
If a null-terminated string exactly of length MAX (0 byte included) is
provided, it will be handled as invalid because of wrong string size length
checks.

Commit fixes this.

Discovered during #1486 development.
2015-05-06 10:55:18 +02:00
Christian Helmuth
f20b6bdc88 Prevent overlap of stack and thread-context members
Now, Thread::Context provides the first word of the stack to prevent the
overlapping of stack top and the 'stack_base' member.

Fixes #1491
2015-05-06 10:55:17 +02:00
Christian Helmuth
98def2488a thread: move Thread_base::myself() to separate file
The thread library (thread.cc) in base-foc shared 95% of the code with
the generic implementation except myself(). Therefore, its
implementation is now separated from the other generic sources into
myself.cc, which allows base-foc to use a foc-specific primitive to
enable our base libraries in L4Linux.

Issue #1491
2015-05-06 10:55:17 +02:00
Martin Stein
c9272937e7 CPU session: apply quota via relative weightings
Physical CPU quota was previously given to a thread on construction only
by directly specifying a percentage of the quota of the according CPU
session. Now, a new thread is given a weighting that can be any value.
The physical counter-value of such a weighting depends on the weightings
of the other threads at the CPU session. Thus, the physical quota of all
threads of a CPU session must be updated when a weighting is added or
removed. This is each time the session creates or destroys a thread.

This commit also adapts the "cpu_quota" test in base-hw accordingly.

Ref #1464
2015-05-06 10:55:16 +02:00
Josef Söntgen
2c39c75e1c base: remove Irq_connection::wait_for_irq() 2015-04-23 16:48:00 +02:00
Alexander Boettcher
faa25e1df6 base: make irq_session asynchronous
second step

options: factor out common parts of irq_session_component.cc
options: use on foc arm no proxy threads

Fixes #1456
2015-04-23 16:47:58 +02:00
Alexander Boettcher
e2cbc7c5b3 base: unify some irq_session headers
remove repos/base-*/include/irq_session headers and use only a unification
from   repos/base/include/irq_session

first step

Issue #1456
2015-04-23 16:47:57 +02:00
Norman Feske
97dc9664fe base: move flex_iterator.h to include/util
Fixes #1482
2015-04-17 16:13:22 +02:00
Norman Feske
eaab23c012 base: const-correctness of Allocator interface
This patch adds const qualifiers to the functions Allocator::consumed,
Allocator::overhead, Allocator::avail, and Range_allocator::valid_addr.

Fixes #1481
2015-04-17 16:13:22 +02:00
Norman Feske
c4dea1057b Document empty Pd_session_client::assign_pci 2015-04-17 16:13:22 +02:00
Stefan Kalkowski
b949489641 base: remove local capability from generic base
* Instead of using local capabilities within core's context area implementation
  for stack allocation/attachment, simply do both operations while stack gets
  attached, thereby getting rid of the local capabilities in generic code
* In base-hw the UTCB of core's main thread gets mapped directly instead of
  constructing a dataspace component out of it and hand over its local
  capability
* Remove local capability implementation from all platforms except Linux

Ref #1443
2015-04-17 16:13:20 +02:00
Stefan Kalkowski
a168c9d6ce core: remove global capability id counter
The global capability ID counter is not used by NOVA and Fiasco.OC
and in the future not needed by base-hw too. Thereby, remove the static
counter variable from the generic code base and add it where appropriated.

Ref #1443
2015-04-17 16:13:19 +02:00
Stefan Kalkowski
358380046c base: assign allocator and quota to platform pd
Enable platform specific allocations and ram quota accounting for
protection domains. Needed to allocate object identity references
in the base-hw kernel when delegating capabilities via IPC.
Moreover, it can be used to account translation table entries in the
future.

Ref #1443
2015-04-17 16:13:19 +02:00
Norman Feske
d9d65aa86b base: use reference for ascii_to output argument
Issue #1477
2015-04-17 16:13:19 +02:00
Norman Feske
d884cf1a9a base: unify ascii_to conversion functions
This patch addresses the first point of the issue #1477, namely
replacing the function-template magic by plain function overloads.

Issue #1477
2015-04-13 14:18:16 +02:00
Christian Prochaska
0fd53c7fe4 Extract numeric string arguments with the correct signedness
There are lots of places where a numeric argument of an argument string
gets extraced as signed long value and then assigned to an unsigned long
variable. If the value in the string was negative, it would not be
detected as invalid (and replaced by the default value), but become a
positive bogus value.

With this patch, numeric values which are supposed to be unsigned get
extracted with the 'ulong_value()' function, which returns the default
value for negative numbers.

Fixes #1472
2015-04-13 14:18:15 +02:00
Christian Helmuth
0fb5ce0918 base: run mp_server on hw_x86_64 as single core 2015-04-09 16:04:47 +02:00
Norman Feske
ea9c2199e8 base: extend emergency dataspace size
The emergency dataspace is used to accommodate the corner case where
a signal context capability is created while issuing the first
resource request. Normally, the attempt to upgrade the signal-session
quota under such a constrained situation would fail. By freeing the
emergency dataspace in this situation, we regain enough quota to
upgrade the signal session.

This is a follow up commit for "base: Raise RAM quota of signal session
to 16K" and fixes the resource_request test on 64-bit platforms.
2015-04-09 16:04:46 +02:00
Norman Feske
eaac3cc1bd Revised API documentation
This patch curates the API documentation to become suitable for the
functional specificaton, which is partially generated from the header
files.
2015-04-09 16:04:46 +02:00
Norman Feske
394fce110e base: coding style 2015-04-09 16:04:45 +02:00
Norman Feske
13a0c336d9 base: separate the API's 'Thread_base' constructor
The 'Thread_base' class is constructed differently in some special cases
like the main thread or a thread that use a distinct CPU session. The
official API, however, should be clean from such artifacts. Hence, I
separated the official constructor from the other cases.
2015-04-09 16:04:45 +02:00
Norman Feske
0d74435448 base: remove Genode::parent_cap from the API
Components interact with their environments using the Genode::Env class
instead of directly using the parent capability.
2015-04-09 16:04:45 +02:00
Norman Feske
695ac957f4 base: add missing override annotations 2015-04-09 16:04:44 +02:00