Commit Graph

76 Commits

Author SHA1 Message Date
Christian Helmuth
92a339befd rump_fs: handle errors on mkdir correctly 2017-03-24 16:20:05 +01:00
Sebastian Sumpf
7ff2927edb rump: sync every 2s not every 10s
fixes issue #2345
2017-03-24 16:20:04 +01:00
Sebastian Sumpf
2cb767de2d rump: implement BIO_SYNC correctly
Send to storage and sync caches

issue #2345
2017-03-24 16:20:04 +01:00
Christian Helmuth
cb43e04691 ldso: defer execution of static constructors
Ldso now does not automatically execute static constructors of the
binary and shared libraries the binary depends on. If static
construction is required (e.g., if a shared library with constructor is
used or a compilation unit contains global statics) the component needs
to execute the constructors explicitly in Component::construct() via
Genode::Env::exec_static_constructors().

In the case of libc components this is done by the libc startup code
(i.e., the Component::construct() implementation in the libc).

The loading of shared objects at runtime is not affected by this change
and constructors of those objects are executed immediately.

Fixes #2332
2017-03-24 16:20:04 +01:00
Christian Helmuth
88db3c0df7 Fix some deprecated warnings
Issue #1987
2017-03-24 16:20:03 +01:00
Alexander Boettcher
517c098632 dde_rump: rumpuser_cv_timedwait: fix timeout calc
Code orginated from pthread implementation, so adjust it also for dde_rump.

Related to #2311
2017-03-15 12:32:27 +01:00
Norman Feske
29b8d609c9 Adjust file headers to refer to the AGPLv3 2017-02-28 12:59:29 +01:00
Christian Helmuth
b805e001db Add READ_READY support to file-system session
The read-ready packet informs the server that the client wants to be
notified if a handle becomes readable. When becoming readable, the
server acknowledges packet and the client may queue a read requests
accordingly.
2017-02-23 14:54:51 +01:00
Sebastian Sumpf
aa602032dd vfs: dynamic configuration support 2017-02-23 14:54:48 +01:00
Josef Söntgen
c407fb80fa jitterentropy: remove deprecated env() usage
This change introduces a Genode specific init function, which sets the
backend allocator used by jent_zalloc/zfree(). As consequence the
library can solely be used by native Genode components, direct libc
usage is not supported.

Fixes #2274.
2017-02-23 14:54:43 +01:00
Christian Helmuth
f9389109bf Support select in libc VFS plugin by read_ready() 2017-02-07 11:12:29 +01:00
Christian Helmuth
f1c877f205 Use Genode::size_t in rumpuser_getrandom_backend()
This streamlines the Genode-specific interface for both 32-bit and
64-bit architectures and fixes dynamic-linking issue with the rump
VFS due to differing size_t types.
2017-01-31 12:01:13 +01:00
Christian Prochaska
201bfabdac os/include/file_system_session: API transition (fix 'deprecated' warnings)
...and adaptation of the users of 'File_system::Session_rpc_object' to the
modified interface.

Issue #1987
2017-01-20 16:46:58 +01:00
Christian Prochaska
344f6f9e53 os/include/block: API transition (fix 'deprecated' warnings)
...and adaptation of the users of 'Block::Driver', 'Block::Root' and
'Block::Session_component' to the modified interface.

Issue #1987
2017-01-20 16:46:57 +01:00
Sebastian Sumpf
6fa6d72c0b rump_fs: Transition to new API
The rump libraries and the rump_fs component are now conform to the new base
API. Also the I/O back end should be running stable now.

issue #2224
2017-01-13 13:07:13 +01:00
Emery Hemingway
4c7ab07480 Rump kernel VFS plugin
Tests at libc_vfs_ext2, libc_vfs_fs_ext2.

Fix #1752
Ref #2224
2017-01-13 13:07:12 +01:00
Norman Feske
3d7b92ea50 Generalize ABI mechanism to shared objects
This patch make the ABI mechanism available to shared libraries other
than Genode's dynamic linker. It thereby allows us to introduce
intermediate ABIs at the granularity of shared libraries. This is useful
for slow-moving ABIs such as the libc's interface but it will also
become handy for the package management.

To implement the feature, the build system had to be streamlined a bit.
In particular, archive dependencies and shared-lib dependencies are now
handled separately, and the global list of 'SHARED_LIBS' is no more.
Now, the variable with the same name holds the per-target list of shared
libraries used by the target.
2017-01-13 13:06:54 +01:00
Norman Feske
c450ddcb3d Disambiguate kernel-specific file names
This patch removes possible ambiguities with respect to the naming of
kernel-dependent binaries and libraries. It also removes the use of
kernel-specific global side effects from the build system. The reach of
kernel-specific peculiarities has thereby become limited to the actual
users of the respective 'syscall-<kernel>' libraries.

Kernel-specific build artifacts are no longer generated at magic places
within the build directory (like okl4's includes, or the L4 build
directories of L4/Fiasco and Fiasco.OC, or the build directories of
various kernels). Instead, such artifacts have been largely moved to the
libcache. E.g., the former '<build-dir>/l4/' build directory for the L4
build system resides at '<build-dir>/var/libcache/syscall-foc/build/'.
This way, the location is unique to the kernel. Note that various tools
are still generated somewhat arbitrarily under '<build-dir>/tool/' as
there is no proper formalism for building host tools yet.

As the result of this work, it has become possible to use a joint Genode
build directory that is usable with all kernels of a given hardware
platform. E.g., on x86_32, one can now seamlessly switch between linux,
nova, sel4, okl4, fiasco, foc, and pistachio without rebuilding any
components except for core, the kernel, the dynamic linker, and the timer
driver. At the current stage, such a build directory must still be
created manually. A change of the 'create_builddir' tool will follow to
make this feature easily available.

This patch also simplifies various 'run/boot_dir' plugins by removing
the option for an externally hosted kernel. This option remained unused
for many years now.

Issue #2190
2016-12-23 16:51:32 +01:00
Norman Feske
ccffbb0dfc Build dynamically linked executables by default
Fixes #2184
2016-12-14 11:22:27 +01:00
Christian Helmuth
53271d8c5f Use default component stack size where appropriate 2016-11-30 13:38:06 +01:00
Norman Feske
5a1cef6381 Make label prefixing more strict
This patch unconditionally applies the labeling of sessions and thereby
removes the most common use case of 'Child_policy::filter_session_args'.
Furthermore, the patch removes an ambiguity of the session labels of
sessions created by the parent of behalf of its child, e.g., the PD
session created as part of 'Child' now has the label "<child-name>"
whereas an unlabeled PD-session request originating from the child
has the label "<child-name> -> ". This way, the routing-policy of
'Child_policy::resolve_session_request' can differentiate both cases.

As a consequence, the stricter labeling must now be considered wherever
a precise label was specified as a key for a session route or a server-
side policy selection. The simplest way to adapt those cases is to use a
'label_prefix' instead of the 'label' attribute. Alternatively, the
'label' attribute may used by appending " -> " (note the whitespace).

Fixes #2171
2016-11-30 13:37:07 +01:00
Norman Feske
784e728727 Clean ldso from using deprecated APIs
Issue #1987
2016-11-08 15:26:32 +01:00
Norman Feske
e370e08e01 Define Genode::size_t as unsigned long
Fixes #2105
2016-10-21 12:39:29 +02:00
Norman Feske
17c79a9e23 base: avoid use of deprecated base/printf.h
Besides adapting the components to the use of base/log.h, the patch
cleans up a few base headers, i.e., it removes unused includes from
root/component.h, specifically base/heap.h and
ram_session/ram_session.h. Hence, components that relied on the implicit
inclusion of those headers have to manually include those headers now.

While adjusting the log messages, I repeatedly stumbled over the problem
that printing char * arguments is ambiguous. It is unclear whether to
print the argument as pointer or null-terminated string. To overcome
this problem, the patch introduces a new type 'Cstring' that allows the
caller to express that the argument should be handled as null-terminated
string. As a nice side effect, with this type in place, the optional len
argument of the 'String' class could be removed. Instead of supplying a
pair of (char const *, size_t), the constructor accepts a 'Cstring'.
This, in turn, clears the way let the 'String' constructor use the new
output mechanism to assemble a string from multiple arguments (and
thereby getting rid of snprintf within Genode in the near future).

To enforce the explicit resolution of the char * ambiguity, the 'char *'
overload of the 'print' function is marked as deleted.

Issue #1987
2016-08-29 17:27:10 +02:00
Stefan Kalkowski
7f8f0f50ea block layer: transition to new API
Ref #1987
Fix #2058
2016-08-29 17:23:20 +02:00
Emery Hemingway
7547820af6 server/rump_fs: local symlink target termination
Clients may write symlink targets with or without null-termination.

Fixes #2043
2016-08-10 11:07:46 +02:00
Emery Hemingway
f8337b511b Move Session_label from os to base
Session_label constructor now takes a bare string rather than a
serialized argument buffer.
Replace all instances of previous constructor with 'label_from_args'
function.

Issue #1787
2016-07-11 13:09:24 +02:00
Emery Hemingway
632444ae23 server/rump_fs: transition to the new base API
Use new env, component and logging frameworks.
Sync file system and block device on component entrypoint.
Support for 'root' session argument.
Increase Rump open file descriptor limit.

Issue #1987
Fixes #2011
2016-06-28 11:09:26 +02:00
Emery Hemingway
8ae2f65da8 uniform XML boolean attribute access
Replace 'attribute(...).has_value("yes")`
with 'attribute_value(..., false)'.

This allows for boolean configuration to be set with values such as
"true", "false", "yes", "no", or "1", "0".

Fixes #2002
2016-06-22 12:21:42 +02:00
Emery Hemingway
51e8f05fb6 Ajdust run scenarios for strict policy matching
Issue #1901
2016-06-22 12:21:41 +02:00
Emery Hemingway
f06087625f server/rump_fs: skip . and .. directory elements
Do not return elements for '.' and '..' during directory reads.

Fixes #1998
2016-06-06 12:12:54 +02:00
Stefan Kalkowski
7f0c3eee6d rump_fs: set inode in Directory::read accordingly
Fix #1989
2016-06-04 13:45:26 +02:00
Norman Feske
807be83b1b Remove inconsistent use of 'is_' prefix
Fixes #1963
2016-05-23 15:52:39 +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
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
Emery Hemingway
52cc50174f Amend File_system session with SEEK_TAIL support
Used to read or write from the end of a file when multiple packets may
be in transit.

Supported by ram_fs, rump_fs, and vfs servers.

Fixes #1775
2016-05-09 13:10:53 +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
Emery Hemingway
cb952d2087 obscure File_system::Out_of_node_handles exception
Replace the Out_of_node_handles exception with Out_of_metadata.
Clients need to know when the server is out of internal resources,
but not why.

Cleanup and sort the errors at file_system_session.h.
Remove 'Size_limit_reached exception' from File_system, which was
internal to ram_fs.

Issue #1751
Fixes #1909
2016-04-25 10:47:52 +02:00
Stefan Kalkowski
5085ad36c3 tool: remove deprecated 'make prepare' mechanism
Fix #1897
2016-03-17 17:02:04 +01:00
Sebastian Sumpf
6b1923bbe6 rump_fs: handle non-existing root directory 2016-02-12 09:17:23 +01:00
Emery Hemingway
2d50552522 Remove Genode namespace from File_system
Fixes #1845
2016-01-08 14:48:52 +01:00
Emery Hemingway
20dc750d6a Update run scenarios for policy label matching
Issue #1766
2015-11-29 18:17:06 +01:00
Christian Helmuth
a01b1793eb dde_rump: fix race condition in rumpuser_mtx
The new mutex is a binary semaphore based on the implementation of
Genode::Semaphore using an applicant FIFO.
2015-11-18 12:22:06 +01:00
Christian Helmuth
60fa8ade1a dde_rump: propagate CC_OLEVEL to buildrump.sh
This effectively enables configuring builds with -O0 for rump sources.
Note, if the build directory is not clean, at least var/libcache/rump*
should be removed before building with changed etc/tools.conf.
2015-11-18 12:22:05 +01:00
Christian Helmuth
5c6f7bdea0 dde_rump: remove static globals 2015-11-18 12:22:05 +01:00
Emery Hemingway
2da239d0c8 void sync(char const *path)
Sync now takes a path argument at VFS and File system interfaces.

Issue #1648
2015-11-04 14:09:23 +01:00
Norman Feske
67b3c23281 dde_rump: adaptation to Xml_node change 2015-10-06 12:18:56 +02:00
Alexander Boettcher
6426d4098c dde_rump: handle ENOENT error case
Related to #1687
2015-09-30 17:13:11 +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
Emery Hemingway
2f1db06deb rump_fs/fuse_fs/lx_fs/ram_fs: symlink fixup
Allow symlinks to be passed to the read and write file system utilities.

Disallow writes to symlinks with offsets in file system servers, this is
to ensure that writing the target of a symlink is an atomic operation.

Fixes #1604
2015-07-21 09:40:19 +02:00