Add reset of buffered messages counter to the initialization function.
It is for testing purposes sinces in the application logging is
initialized only once.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Users may want to do some configuration after the kernel is up, but
before initializing the log_core. Making the log_core's init priority
configurable makes that possible.
Signed-off-by: Ian Oliver <io@amperecomputing.com>
Adding multidomain support by introducing log_link module which
acts as a receiver of log messages created by another domain.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
To enable custom formatting of the log output while still using existing
backend, this commit adds the `log_output_custom` feature.
To use, register a commit with `log_custom_output_msg_set` then set the
log backend format set using `log_backend_format_set` with
`LOG_OUTPUT_CUSTOM`
Signed-off-by: Lucas Denefle <lucas.denefle@converge.io>
Add macro for logging raw formatted string. It is similar to
LOG_PRINTK macro but contrary to LOG_PRINTK it should not append
carriage return character to any new line character found in the
string. LOG_PRINTK processed by log_output module has that to
mimic printk behavior.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Fix a bug introduced by 658123bb21 where if all backends were
ready prior to logging thread loop, thread was periodically
waken up for no reason. Fix is setting timeout to K_FOREVER
if all backends are ready after the initialization.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added check which ensures that only backends with autostart
flag set are enabled automatically by the logging.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This adds the bits to allow the process thread to notify
backends when it has finished processing pending log messages.
This allows, for example, flash-based backends to group writing
log messages to storage to limit wear, since log_output_flush()
is called per message. Also the backend does not have to resort
to using timer to periodically flush its buffer to storage,
avoiding waking up the device when there are no messages.
Another use of this is for backends requiring DMA transfers.
Grouping all pending log messages into one DMA transfer is
sometimes preferrable.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add option to Kconfig to enable log_output module. It is used
by most of the backends but it is an optional formatter helper
thus it is possible to run logging without it. One example might
be dictionary based logging which does not format log message
to a readable string.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Updated log_core to use spin lock instead of irq_lock.
Refactored z_log_msg_post_finalize function.
Update thresholds in the log_stack test.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Add early returns from functions which are not used when
there is only one frontend in the system (no backends). This
allows to significantly reduce logging code size in that
configuration.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Renaming objects which had 2 in the name to indicate that
it is v2 specific. Once logging v1 has been removed such
suffixes are redundant.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Remove v1 implementation from log_core and all references in the tree.
Remove modules used by v1: log_list and log_msg.
Remove Kconfig v1 specific options.
Remove Kconfig flags used for distinction between v1 and v2.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Extended logging backend API with log_backend_is_ready call which
returns 0 is backend is ready. Logging core will make sure that
all autostarted backends are ready before they are enabled.
This option allows to handle backends which are not yet ready
after init function is called (e.g. usb backend that is not plugged
in). If this is the only backend in the system, logging processing
will not start util first backend is ready.
Function for checking readiness is optional and when backend has
no such function it is assumed that backend is ready after
initialization function returns which makes this feature backward
compatible.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
In order to bring consistency in-tree, migrate all subsystems code to
the new prefix <zephyr/...>. Note that the conversion has been scripted,
refer to zephyrproject-rtos#45388 for more details.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
if CONFIG_LOG_TAG_MAX_LEN is 0, then a warning would be generated
on the MIN macro always being false, but as
CONFIG_LOG_TAG_MAX_LEN is a constant, then it is better to just
compile out the function if it's 0.
Signed-off-by: Ryan McClelland <ryanmcclelland@fb.com>
Extended logging v2 to support frontend api. Contrary to v1,
it is possible to have frontend and backends in the system.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added new flags to packaging API:
- CBPRINTF_PACKAGE_ADD_RO_STR_IDXS - when set, read-only string
locations are appended to the package
- CBPRINTF_PACKAGE_ADD_RW_STR_IDXS - when set, read-write string
locations are appended to the package (instead of appending actual
strings)
- CBPRINTF_PACKAGE_FIRST_RO_STR_CNT(n) - indicate that n first strings
are known to be read only. Ignored in runtime packaging.
Add function for copying packages with optional appending strings.
Changed CBPRINTF_MUST_RUNTIME_PACKAGE to use same flags as packaging.
Aligned logging and test to those changes.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Prompt was removed by 154ca8526 to ensure that it is not
disable when it is required. That removed possibility of
manually enabling that option my the user. Bringing prompt
back and adding check to code to fail compilation if
LOG2_ALWAYS_RUNTIME is not set but is required.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
This adds a utility function to check if an address is within
read only section. This is extracted from logging subsys so
use the new func in logging. The one is cbprintf_packaged is
also replaced.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add support for new API's log_backend_format_set and
log_format_set_all_active_backends to switch the logging format
for one backend and for all the active backends respectively.
Using format_set function pointer in log_backend_api struct as a hook
to set the log format at runtime in the backends. Add function pointer
table with helper functions to be used as a way to select log format.
Add supported log format types as macros to use with the API.
Signed-off-by: Aastha Grover <aastha.grover@intel.com>
Updated log_core to use spin lock instead of irq_lock.
Refactored z_log_msg_post_finalize function.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Logging v2 did not support getting memory usage data. Adding this
support by creating common api for getting current and maximum
usage. Tracking of maximum usage is optional and can be enabled
using CONFIG_LOG_MEM_UTILIZATION.
Updated shell command to use common API.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Fixed a dependency from printk.h to logging headers which in
certain configurations could lead to circular dependencies.
Cleaned up printk.c to call z_log_vprintk from vprintk.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Algorithm was failing in case when overflow mode was enabled
but allocation of new message failed. It could happen if message
size exceeded buffer size. Losing track of buffered messages
can lead to logging processing freeze.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
MIPS (Microprocessor without Interlocked Pipelined Stages) is a
instruction set architecture (ISA) developed by MIPS Computer
Systems, now MIPS Technologies.
This commit provides MIPS architecture support to Zephyr. It is
compatible with the MIPS32 Release 1 specification.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Reduced logging mode selection to deferred, immediate, minimal and
frontend. Decoupled logging version from mode and created CONFIG_LOG1
which can be used to explicitly select deprecated version.
From now on, chosing CONFIG_LOG_MODE_{IMMEDIATE,DEFERRED} will result
in version2.
Deprecated CONFIG_LOG2_MODE_{IMMEDIATE,DEFERRED} with cmake warning.
Codebase adapted to those changes.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
When message is dropped then log_process is called with
bypass flag set and additionally z_log_dropped() is called.
In both functions counter of buffered messages was decremented.
That resulted in counter being decremented twice. It resulted
in logging misbehavior after messages being dropped (delayed
processing). Fixing it by decrementing the counter in log_process
only when bypass flag is not set.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Use value returned by atomic_inc to decide on action.
Previously direct value was used and that could lead to
delays in logging processing because thread waking up
could be mishandled.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Tag can be changed at runtime. Feature is enabled by setting
maximum tag length to positive value. Additionally, default
tag can be configured in Kconfig.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
When LOG2 is enabled, timestamp func which was just set
according to various conditions, is overwritten using sysclock.
Since sysclock is very fast, it will cause uint32_t to wrap very
fast and cause the time to start over from 0 often.
This commit combines the two statements doing the same thing,
to one statement.
Signed-off-by: Emil Lindqvist <emil@lindq.gr>
A variable is tracking number of buffered messages. This is used
to trigger processing thread in certain cases. Counter was not
handled correctly when message was dropped. In certain cases that
can lead to hanging of log processing.
Added counter decrementation in the callback called whenever
message is dropped.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Previously, a `uint32_t` was aliased as an `atomic_t`. However,
with #39531, `atomic_t` is now a `long` under the hood, which
is 64-bit on 64-bit platforms.
Fixes#40369
Signed-off-by: Christopher Friedt <chrisfriedt@gmail.com>
There were some leftovers in logging after attempt to use
logging as tracing backend. Removing all references since it
lead to test compilation failures.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added log_internal.h for internal APIs. Move functions out of
log_core.h. Log_core.h shall have only macros and functions related
to logging message creation. Log_core.h is included by log.h thus
number of dependencies in that headers must be limited to minimum
to allow including without risk of circular dependencies.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Cleanup and preparation commit for linker script generator.
Zephyr linker scripts provides start and end symbols for each larger
areas in the linker script.
The symbols _image_rom_start and _image_rom_end corresponds to the group
ROMABLE_REGION defined in the ld linker scripts.
The symbols _image_rodata_start and _image_rodata_end is not placed as
independent group but covers common-rom.ld, thread-local-storage.ld,
kobject-rom.ld and snippets-rodata.ld.
This commit align those names and prepares for generation of groups in
linker scripts.
The symbols describing the ROMABLE_REGION will be renamed to:
_image_rom_start -> __rom_region_start
_image_rom_end -> __rom_region_end
The rodata will also use the group symbol notation as:
_image_rodata_start -> __rodata_region_start
_image_rodata_end -> __rodata_region_end
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Add the number of strdup buffers currently in use to the
`log strdup_utilization` shell command.
Signed-off-by: Andrew Hedin <andrew.hedin@lairdconnect.com>
It is mainly for testing purposes where logging is multiple times
reinitialized.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
