# # Copyright (c) 2014-2015 Wind River Systems, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # menuconfig KERNEL_EVENT_LOGGER bool prompt "Enable kernel event logger features" default n select RING_BUFFER help This feature enables the usage of the profiling logger. Provides the logging of sleep events (either entering or leaving low power conditions), context switch events, interrupt events, boot events and a method to collect these event messages. if KERNEL_EVENT_LOGGER config KERNEL_EVENT_LOGGER_BUFFER_SIZE int prompt "Kernel event logger buffer size" default 128 help Buffer size in 32-bit words. config KERNEL_EVENT_LOGGER_DYNAMIC bool prompt "Kernel event logger dynamic enabling" default n help If enabled, kernel event logger is not logging any data to the ring buffer It is up to the application to set the appropriate flags to enable/disable the logging of each event type. config KERNEL_EVENT_LOGGER_CUSTOM_TIMESTAMP bool prompt "Kernel event logger custom timestamp" default n help This flag enables the possibility to set the timer function to be used to populate kernel event logger timestamp. This has to be done at runtime by calling sys_k_event_logger_set_timer and providing the function callback. menu "Kernel event logging points" config KERNEL_EVENT_LOGGER_CONTEXT_SWITCH bool prompt "Context switch event logging point" default n help Enable the context switch event messages. config KERNEL_EVENT_LOGGER_INTERRUPT bool prompt "Interrupt event logging point" default n help Enable interrupt event messages. These messages provide the following information: The time when interrupts occur. config KERNEL_EVENT_LOGGER_SLEEP bool prompt "Sleep event logging point" default n depends on SYS_POWER_MANAGEMENT help Enable low power condition event messages. These messages provide the following information: - When the CPU went to sleep mode. - When the CPU woke up. - The ID of the interrupt that woke the CPU up. endmenu endif