The printk family of functions is used elsewhere, so make this
consistent. Also, printk has a smaller stack footprint.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The CONFIG_LOG_PROCESS_TRIGGER_THRESHOLD option can be used to wake up
the background log processing thread when a given number of messages
have been queued.
Currently, the msg_finalize() routine which is responsible for
queueing a log message for later handling appends messages to the
global list after performing the threshold check and waking up the
thread.
This leads to a race condition with undesirable behavior if the
threshold == 1:
- the msg_finalize() thread is scheduled out by calling k_wakeup()
- the log processing thread wakes up, notice that no messages are
queued, and goes back to sleep
- the msg_finalize() thread is scheduled back in and the message is
queued for processing
This defers the handling of the message until the processing thread
wakes up again after the CONFIG_LOG_PROCESS_THREAD_SLEEP_MS timeout,
which is not what the user wants.
Fix this by queueing the message before waking up the handler thread.
(This also may improve responsiveness for larger threshold values.)
Signed-off-by: Marti Bolivar <marti@foundries.io>
Make the severity level prefixes the same length. This helps both
readability of mixed level logs, and it's also consistent with how the
levels are named in the public API macros.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Enabling internal processing thread allows implicit initialization
and processing log messages in case mutlithreading is enabled.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Documenting new logger features: waking up processing thread
and internal logger processing thread.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
When enabled, logger is creating own thread which processes buffered
logs. When no logs to process, thread sleeps for configurable period.
Thread can be waken up if number of buffered log messages exceeds
configured threshold. Logging sample aligned to use new feature.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added configurable threshold of number of buffered log messages
on which log wakes up thread which processes buffered logs. Thread
ID is provided during logger initialization. Feature is optional
and can be disabled by setting CONFIG_LOG_PROCESS_TRIGGER_THR to 0.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Log API can be used before user can explicitly initialize the logger.
In order to ensure that logger core is ready to buffer log messages
it must be initialize as early as possible. Initialization does not
include initialization of default backend since driver may not be
ready and backend is needed only when log messages are processed.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Bool symbols implicitly default to 'n'.
A 'default n' can make sense e.g. in a Kconfig.defconfig file, if you
want to override a 'default y' on the base definition of the symbol. It
isn't used like that on any of these symbols though.
Remove some 'default ""' properties on string symbols too.
Also make definitions more consistent by converting some
config FOO
<type>
prompt "foo"
definitions to a shorter form:
config FOO
<type> "foo"
This shorthand works for int/hex/string symbols too, not just for bool
symbols.
Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
It is possible that user provides 0 hz frquency to the log_output
(if CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=0). In that case timestamp
must not be formatted to avoid division by 0.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Uninitialized variable error could lead to a situation where
printk calls processed by the logger were dropped.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Adding new implementation of logging subsystem. New features
includes: support for multiple backends, improving performance
by deferring log processing to the known context, adding
timestamps and logs filtering options (compile time, runtime,
module level, instance level). Console backend added as the
example backend.
Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
There were multiple spots where code was using the _wait_q_t
abstraction as a synonym for a dlist and doing direct list management
on them with the dlist APIs. Refactor _wait_q_t into a proper opaque
struct (not a typedef for sys_dlist_t) and write a simple wrapper API
for the existing usages. Now replacement of wait_q with a different
data structure is much cleaner.
Note that there were some SYS_DLIST_FOR_EACH_SAFE loops in mailbox.c
that got replaced by the normal/non-safe macro. While these loops do
mutate the list in the code body, they always do an early return in
those circumstances instead of returning into the macro'd for() loop,
so the _SAFE usage was needless.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
In IPv4 we need to select the network interface, where the packet
is to be sent, using the IPv4 address instead of default network
interface.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Instead of always allocating both IPv6 and IPv4 address information
to every network interface, allow more fine grained address
configuration. So it is possible to have IPv6 or IPv4 only network
interfaces.
This commit introduces two new config options:
CONFIG_NET_IF_MAX_IPV4_COUNT and CONFIG_NET_IF_MAX_IPV6_COUNT
which tell how many IP address information structs are allocated
statically. At runtime when network interface is setup, it is then
possible to attach this IP address info struct to a specific
network interface. This can save considerable amount of memory
as the IP address information struct can be quite large (depends
on how many IP addresses user configures in the system).
Note that the value of CONFIG_NET_IF_MAX_IPV4_COUNT and
CONFIG_NET_IF_MAX_IPV6_COUNT should reflect the estimated number of
network interfaces in the system. So if if CONFIG_NET_IF_MAX_IPV6_COUNT
is set to 1 and there are two network interfaces that need IPv6
addresses, then the system will not be able to setup IPv6 addresses to
the second network interface in this case. This scenario might be
just fine if the second network interface is IPv4 only. The net_if.c
will print a warning during startup if mismatch about the counts and
the actual number of network interface is detected.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Thread and interrupt events may well arrive before the subsystem
initialization call has been made. Just swallow such events.
In particular, an incoming change to the way _ready_thread works
causes the main and idle thread initialization to throw thread ready
events (which isn't wrong!), which the current setup can't handle.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
If network based syslog backend is enabled in Kconfig file,
then syslog messages are sent to external system using UDP.
See RFC 5424 and RFC 5426 for details about the syslog protocol.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Introducing CMake is an important step in a larger effort to make
Zephyr easy to use for application developers working on different
platforms with different development environment needs.
Simplified, this change retains Kconfig as-is, and replaces all
Makefiles with CMakeLists.txt. The DSL-like Make language that KBuild
offers is replaced by a set of CMake extentions. These extentions have
either provided simple one-to-one translations of KBuild features or
introduced new concepts that replace KBuild concepts.
This is a breaking change for existing test infrastructure and build
scripts that are maintained out-of-tree. But for FW itself, no porting
should be necessary.
For users that just want to continue their work with minimal
disruption the following should suffice:
Install CMake 3.8.2+
Port any out-of-tree Makefiles to CMake.
Learn the absolute minimum about the new command line interface:
$ cd samples/hello_world
$ mkdir build && cd build
$ cmake -DBOARD=nrf52_pca10040 ..
$ cd build
$ make
PR: zephyrproject-rtos#4692
docs: http://docs.zephyrproject.org/getting_started/getting_started.html
Signed-off-by: Sebastian Boe <sebastian.boe@nordicsemi.no>
A CPU fault occurs when sys_k_event_logger_get_wait()
api invoked with config KERNEL_EVENT_LOGGER_THREAD
enabled.
sys_k_event_logger_get_wait() supposed to pend on a
semaphore when all the events from kernel event logger
are read.But when sys_k_event_logger_get_wait() inovked
with config KERNEL_EVENT_LOGGER_THREAD(i.e captures thread
events) subsquent call inside this function will write to
kernel event log buffer to capture pend event.This will
release the semaphore on which sys_k_event_logger_get_wait()
was pending hence thread gets unpend before swap gets called.
Which in other words a thread which is invoking
sys_k_event_logger_get_wait()(i. e sem_count = 0) get pends
and unpends in single function flow when KERNEL_EVENT_LOGGER_THREAD
enabled.
This would cause overlapping of the stack address where
return address of "_pend_current_thread" stored with esp of
callee saved(i. e thread->callee_saved.esp). Thus return adrress
of "_pend_current_thread" would be overwitten with zero. Which
in turn causes CPU fault.
The thread invoking sys_k_event_logger_get_wait() supposed
to only read the events of the threads which logged to kernel event
logger buffer. But it should not write to kernel event logger
buffer. Otherwise it would cause the race condition explained above.
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.
Change-Id: I9ccb7c01a7d8c4ad8b1e55a1b45622aad2a57e57
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This adds a new event type to the kernel event logger that tracks
thread-related events: being added to the ready queue, pending a
thread, and exiting a thread.
It's the only event type that contains "subevents" and thus has a
non-void parameter in their respective _sys_k_event_logger_*()
function. Luckily, as isn't the case with other events (such as IRQs
and thread switching), these functions are called from
platform-agnostic places, so there's no need to worry about changing
the assembly guts.
This is the first patch in a series adding support for better real-time
profiling of Zephyr applications.
Jira: ZEP-1463
Change-Id: I6d63607ba347f7a9cac3d016fef8f5a0a830e267
Signed-off-by: Leandro Pereira <leandro.pereira@intel.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.
Jira: ZEP-2051
Change-Id: Icbf9e542b23208890a3a32358447d44cdc274ef1
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Fix doxygen comment typos used to generate API docs
Change-Id: I3efff6f5fa26f87d1e658d6336fef01ce45f5bb0
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
k_sem_take() is documented as returning negative value for error and
0 for success. The old code didn't work.
Change-Id: I717b35d73fced476b50e3207410858f86c2ef9bc
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.
Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.
Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file. Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.
Jira: ZEP-1457
Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Remove legacy option and use SYS_CLOCK_EXISTS where appropriate.
Change-Id: I3d524ea2776e638683f0196c0cc342359d5d810f
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Move logging out of misc/ to its own subsystem. Anything related to
logging and any new logging features or backends could be added here
instead of the generic location in misc/ which is overcrowded with
options that are not related to eachother.
Jira: ZEP-1467
Change-Id: If6a3ea625c3a3562a7a61a0ba5fd7e6ca75518ba
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Johan Hedberg