Commit Graph

363 Commits

Author SHA1 Message Date
Alexander Boettcher
1a6963813c libc: avoid race using Libc::suspend with pthreads
TOCTTOU bug, in our case time of check to time of sleep bug
2017-02-28 12:59:24 +01:00
Christian Prochaska
db0dc0d97c libc: unblock main thread in 'Kernel::resume_all()'
If 'Libc::Kernel::resume:all()' is called from a non-main thread, send a
signal to unblock the main thread from 'wait_and_dispatch_one_signal()'.

Fixes 
2017-02-28 12:59:24 +01:00
Josef Söntgen
69c48a3626 os: refactor Global_file_system_factory
The global file system factory is now created explicitly and the
global singleton accessor function was removed.

Fixes .
2017-02-28 12:59:23 +01:00
Martin Stein
a74a0092b3 nic_router.run: raise Qemu RAM size
Ref 
2017-02-28 12:59:22 +01:00
Martin Stein
d301022fe7 nic_router.run: do not append but concatenate
Makes the script more readable and saves 100 LOC.

Ref 
2017-02-28 12:59:22 +01:00
Martin Stein
d2832c3e4d lwip/http_clnt: remove unused variable
Ref 
2017-02-28 12:59:22 +01:00
Martin Stein
a88954394a nic_bridge tests: simplify test names
Ref 
2017-02-28 12:59:21 +01:00
Martin Stein
dc4e2325d0 nic_router.run: use static IP config in general
Dynamic IP configuration is a problem when testing on real machines
in a network that behaves differently than the DHCP in QEMU.

Ref 
2017-02-28 12:59:21 +01:00
Martin Stein
959b80bab1 lxip/lwip tests: non-libc attributes to config tag
The 'server_ip' and 'server_port' attributes for 'lxip/udp_client' and
'lwip/http_clnt' as well as the 'port' attribute for 'lxip/udp_echo' and
'lwip/http_srv_static' are not directly libc-related so they should not
live in the libc tag but in the config tag of the component.

Ref 
2017-02-28 12:59:21 +01:00
Martin Stein
a9535d5311 nic_router.run: update to new usage of the VFS tag
Use <config><vfs/></config> instead of <config><libc><vfs/></libc></config>.

Ref 
2017-02-28 12:59:21 +01:00
Martin Stein
06e605defa LibC VFS: Warn on possible FD path leaks 2017-02-28 12:59:19 +01:00
Martin Stein
222a789fef LibC socket FS: Fix leak of remote and local files 2017-02-28 12:59:19 +01:00
Christian Prochaska
1df4e53cba Qt5: use 'Libc::with_libc()' where needed
Fixes 
2017-02-28 12:59:19 +01:00
Christian Helmuth
4eb04119a5 test: TCP echo server and client 2017-02-28 12:59:19 +01:00
Josef Söntgen
15821e32ec nic: remove usage of deprecated env()
This commit includes changes to the Nic::Session_component interface.
We now pass the entire env to the component instead of only ram, rm and
the ep because we need the env to open connections from within the
Session_component implemenation. So far only the cadence_gem driver
needs this, though.

Issue .
2017-02-28 12:59:18 +01:00
Christian Helmuth
eab477370f libc: select support for components
Libc components cannot use regular calls to select() as this may suspend
their execution. In this case incoming RPCs will be deferred until
select() returns and the component returns to the entrypoint dispatch
loop. The Libc::Signal_handler solves this problem with a its select()
that either returns the currently ready file descriptors immediately or
calls the registered handler function during libc resume.
2017-02-28 12:59:17 +01:00
Christian Helmuth
f7f18710de libc: tests for components using RPC and select() 2017-02-28 12:59:16 +01:00
Christian Helmuth
0aac473229 libc: component-compatible execution semantics
Now, the libc kernel supports to execute application code from all RPC
functions not only Component::construct(). This is enabled by the
Libc::with_libc() scope function.
2017-02-28 12:59:16 +01:00
Norman Feske
3a65f0bba3 libc: 'with_libc' mechanism to enter libc runtime
This commit extends an easy-to-use mechanism to allow Genode component
code to enter/leave the libc application context. This is needed
whenever low-level component code (like signal handlers or RPC
functions) need to interact with potentially blocking libc I/O
functions.

Please note that this commit contains the API-level design only. The
actual context switching code 'execute_in_application_context' is
missing.
2017-02-28 12:59:16 +01:00
Christian Helmuth
fdad5116dd libc: support for socket file system
The socket file system can be configured in the "socket" attribute of
the libc config node like follows.

  <vfs> <dir name="socket"> <fs/> </dir> </vfs>
  <libc ... socket="/socket"/>

This configures the socket file system libc backend to access files in
"/socket" for socket operations.
2017-02-28 12:59:16 +01:00
Emery Hemingway
9d7cda04fa test: RFC862 UDP echo server 2017-02-28 12:59:15 +01:00
Christian Helmuth
eda0828ca0 Skip binary files in GEN_INCLUDES
A binary file may be a temporary Vim .swp file when examining contrib
sources. The commit prevents build errors like

  .../repos/dde_linux/lib/mk/lxip_include.mk:29:
  target '.../x86_64/var/libcache/lxip_include/include/include/include/Binary'
  given more than once in the same rule
  .../repos/dde_linux/lib/mk/lxip_include.mk:29:
  target '.../x86_64/var/libcache/lxip_include/include/include/include/file'
  given more than once in the same rule
  ...
2017-02-23 15:03:28 +01:00
Christian Helmuth
61b6dccf13 Queued read/write/read_ready in VFS and servers 2017-02-23 15:03:28 +01:00
Christian Helmuth
01daf19947 Extend libc counter tests 2017-02-23 14:54:51 +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
Christian Helmuth
8185a49b4c libc: replace Timed_semaphore by suspend with timeout 2017-02-23 14:54:50 +01:00
Martin Stein
ed370a8f5c Introduce gpio_drv function in run scripts
Do not use automatic alias in the run tool for the name of the
gpio-driver binary.

Ref 
2017-02-23 14:54:50 +01:00
Christian Helmuth
957653d4b9 libc: separate unit for freeaddrinfo/getaddrinfo
Preperation for merge of libc_resolv into libc.
2017-02-23 14:54:50 +01:00
Sebastian Sumpf
aa602032dd vfs: dynamic configuration support 2017-02-23 14:54:48 +01:00
Sebastian Sumpf
643a09b518 libc: late intialization of plugins
- for-each plugin iterator
* Call 'init(Genode::env &)' for each plugin bofore 'Libc::construct' or
'main' is called
2017-02-23 14:54:46 +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 .
2017-02-23 14:54:43 +01:00
Alexander Boettcher
22f02396c0 qt5: avoid cryptic messages if not prepared
Fixes 
2017-02-23 14:54:43 +01:00
Norman Feske
a4e2999e7d libc: warn but don't stop on too early allocations 2017-02-07 19:20:29 +01:00
Norman Feske
10bb3fbe38 qt5: add missing routes to run scripts
Issue 
2017-02-07 11:12:31 +01:00
Christian Helmuth
f9389109bf Support select in libc VFS plugin by read_ready() 2017-02-07 11:12:29 +01:00
Christian Helmuth
ba1bd071df libc counter test 2017-02-07 11:12:28 +01:00
Norman Feske
f8349b5bc7 os/slave.h: Remove use of global allocator
This patch eliminates the need for a global allocator by passing the
parent-service registry as argument to the 'Slave::Policy' constructor.

Fixes 
2017-02-07 11:12:28 +01:00
Christian Helmuth
c0d61858c3 Support for suspendable read in VFS and libC
The support has two parts. First, a VFS plugin now gets passed an
I/O-response handler callback on construction, which informs users of the
VFS that an I/O event occurred. This enables, for example, the libC to
check if blocking read can be completed. Further, the VFS file I/O
interface provides now functions for suspendable reads, i.e.,
queue_read() and complete_read().
2017-02-07 11:12:27 +01:00
Norman Feske
d1df1dbd87 libc: API transition (fix deprecated warnings)
Issue 
2017-02-07 11:12:24 +01:00
Norman Feske
25bcc2dfa6 libc: add Libc::Allocator that uses malloc/free 2017-02-07 11:12:23 +01:00
Christian Helmuth
0f6800b20f libc: use task switch in select() 2017-02-07 11:12:23 +01:00
Christian Helmuth
59c0796820 libc: test for select()
Issue 
2017-02-07 11:12:21 +01:00
Christian Helmuth
e93fe55e54 libc: clear frame pointer on user-context entry
If built with frame-pointer support the backtrace now stops at the user
entry code. Before, the libc kernel stack was trced back too.
2017-01-31 14:58:36 +01:00
Norman Feske
c65f78671f VFS block test
This test reproduces an issue of the VFS block file system when the
underlying block device has a coarser granularity than the block
requests issued by the VFS client. I.e., if the underlying block device
has a block size of 4K, writing a sequence of (non-4K-aligned) 512 blocks
that crosss a 4K boundary corrupts the data on the block device.

Issue 
2017-01-31 12:01:19 +01:00
Norman Feske
cd3a5852d6 Warn about the use of deprecated headers
This commit enables compile-time warnings displayed whenever a deprecated
API header is included, and adjusts the existing #include directives
accordingly.

Issue 
2017-01-31 12:01:18 +01:00
Emery Hemingway
9b3ecb114d lib/posix: populate environment variables from config
Parse ``<env key="..." value=".."/>`` nodes from the config ROM and
populate a list at the 'genode_envp' and 'environ' symbols.

Test script at run/libc_getenv.

Fix 
2017-01-31 12:01:16 +01:00
Christian Helmuth
60c9192335 Enforce building jitterentropy library with -O0
Fixes 
2017-01-31 12:01:13 +01:00
Norman Feske
47a129c6af run/platform_drv.inc: add 'need_usb_hid' function
This function returns the information whether the used platform relies
on USB HID for interactive scenarios by default as is the case for most
ARM platforms. In contrast, for x86 the USB driver can be omitted because
we can use the PS/2 driver (that is readily available in repos/os/).
2017-01-31 12:01:12 +01:00
Martin Stein
b57834f26b lwip/http_clnt: circumvent LWIP cleanup exceptions
Cleaning up LWIP when returning from the main function sporadically
leads to endless errors "Error: sys_arch_mbox_fetch: unknown exception
occured!". We let the client sleep forever at the end of its main function
to prevent tests from failing due to a flooded log.

Reg 
2017-01-31 12:01:12 +01:00
Norman Feske
02d5efcf3f init: apply routing to environment sessions
The init component used to create the CPU/RAM/PD/ROM sessions (the child
environment) for its children by issuing session requests to its parent,
which is typically core. This policy was hard-wired. This patch enables
the routing of the environment sessions of the children of init
according to the configured routing policy.

Because there is no hard-wired policy regarding the environment sessions
anymore, routes to respective services must be explicitly declared in
the init configuration. For this reason, the patch adjusts several run
scripts in this respect.

This patch removes the outdated '<if-args>' special handling of session
labels. The '<if-args>' feature will eventually be removed completely
(ref )

Issue 
Issue 
Issue 
Issue 
2017-01-31 12:01:11 +01:00