OCEOS/oceos logging
OCEOS Logging
OCEOS logs time stamped records of anomalies detected during execution.
Logging Introduction
OCEOS logging is structured as a circular buffer, older entries are overwritten by new entries once all entries are in use. System calls are provided to add entries the log, set its maximum size, and return the number of entries, and reset.
It is set up initially as an array of 32-bit words that starts at a 32-bit aligned address provided by the application developer.
OCEOS does not change the log entries after reset, so if log area is located in non-volatile memory, after reset, the application can read to recover possible reasons of failure. Only call to oceos_log_reset() can be used to reset all log entries if desired.
Log directives can be called from main() after oceos_init().
The read and write indices are stored in the log area and if equal indicate that the log is empty.
The application developer can specify a function to be called when 3/4 of log entries are in use. This function is called again only after 3/4 of log entries have been read and the log has again become 3/4 full.
OCEOS will call a user defined function void oceos_on_full_log(void*).
void oceos_on_full_log(void*);
/*
* Create the application configuration structure
*/
struct application_configuration app_config = {0};
app_config.log_full_function = &oceos_on_full_log; // NULL => ignore
Log entry types are defined in system_log.h header file. A log entry type is an 8-bit number. Values from 0 to 127 can be defined by the application developer. Values from 128 to 255 are used by OCEOS as below.
enum LOG_ENTRY_TYPE{
LOG_SYS_OK = 0x80U,
LOG_NULL_FATAL,
LOG_OCEOS_ABORT,
LOG_INVALID_SYSTEM_STATE,
LOG_LOG_NOT_VALID_ENTRY,
LOG_STATUS_INVALID,
LOG_NULL_POINTER,
LOG_INIT_FAIL,
LOG_TIME_INIT_FAIL,
LOG_TIME_CONFIG_FREEZE_FAIL,
LOG_TIME_CONFIG_UNFREEZE_FAIL,
LOG_TIME_RESET_FAIL,
LOG_TIME_SCALER_FAIL,
LOG_TIME_RELOAD_FAIL,
LOG_TIME_COUNTER_FAIL,
LOG_TIME_CONTROL_FAIL,
LOG_TIME_POINTER_NULL,
LOG_TIME_POINTER_LOW_NULL,
LOG_TIME_START_FAIL,
LOG_FIXED_INIT_FAIL,
LOG_DYNAMIC_INIT_FAIL,
LOG_INIT_TASK_START_FAIL,
LOG_DEADLINE_MISSED,
LOG_TASK_DISABLED,
LOG_TASK_ENABLED,
LOG_JOB_INVALID,
LOG_JOB_NONE_FREE,
LOG_JOB_NOT_EXECUTING,
LOG_JOB_NOT_ACTIVE,
LOG_READYQ_TOO_BIG,
LOG_READYQ_SENTINEL_BAD,
LOG_READYQ_FULL,
LOG_READYQ_EMPTY,
LOG_READYQ_PUT_DISABLED_TASK,
LOG_READYQ_PUT_FAIL,
LOG_READYQ_REMOVE_DONE,
LOG_READYQ_REMOVE_FAIL,
LOG_PARAM_BAD_ID,
LOG_PARAM_BAD_TIME,
LOG_PARAM_ACTION_MISSING,
LOG_PARAM_JOB_MISSING,
LOG_MUTEX_BAD_CEILING,
LOG_MUTEX_ALREADY_HELD,
LOG_MUTEX_ALREADY_FREE,
LOG_MUTEX_WRONG_JOB,
LOG_MUTEX_NESTING_BAD,
LOG_MUTEX_EXIT_HOLDING,
LOG_SEMAPHORE_COUNT_EXCEEDED,
LOG_SEMAPHORE_MAX_ALREADY_REACHED,
LOG_SEMAPHORE_INVALID_PENDING_JOB,
LOG_SEMAPHORE_PENDING_REMOVE_FAIL,
LOG_SEMAPHORE_PENDING_TIMED_REMOVE_FAIL,
LOG_SEMAPHORE_TRANSFER_READYQ_FAIL,
LOG_DATAQ_FULL,
LOG_DATAQ_EMPTY,
LOG_DATAQ_COUNT_EXCEEDED,
LOG_DATAQ_PENDING_QUEUE_FULL,
LOG_DATAQ_INVALID_PENDING_JOB,
LOG_DATAQ_PENDING_REMOVE_FAIL,
LOG_DATAQ_TIMED_JOB_REMOVE_FAIL,
LOG_TIMED_ACTION_TIMER_NULL,
LOG_TIMED_ACTION_TIMER_STOP_FAIL,
LOG_TIMED_ACTION_NOT_INIT,
LOG_TIMED_ACTION_INT_REG_FAILED, // Failed to register timed action interrupt handler
LOG_TIMED_ACTION_INVALID,
LOG_TIMED_ACTION_BAD_INDEX,
LOG_TIMED_ACTION_MISSED,
LOG_TIMED_ACTION_Q_FULL,
LOG_TIMED_ACTION_Q_EMPTY,
LOG_TIMED_ACTION_PUT_FAIL,
LOG_TIMED_ACTION_REMOVE_FAIL,
LOG_TIMED_ACTION_BAD_JOB_ID,
LOG_TIMED_ACTION_DO_FAIL,
LOG_SYSTEM_ERROR,
LOG_TIME_BSP_SYSFREQ_NULL,
LOG_SEMAPHORE_TIMEOUT_NOT_INIT, // If user wants to use semaphore with timeout without previous initialization of timed actions
LOG_DATAQ_TIMEOUT_NOT_INIT, // If user wants to use dataq with timeout without previous initialization of timed actions
LOG_TIMED_ACTION_START_WHILE_RUNNING,
LOG_INT_HANDLER_IS_NULL,
LOG_SET_OCEOS_TRAP_HANDLER_FAILED,
LOG_INT_CALLED_NO_INIT,
LOG_FAILED_SET_INT_PRIO, // Failed to set PendSV priority
LOG_FAILED_PENDSV_INIT,
LOG_SYS_TIME_NOT_INIT // System time is not initialized
};
Logging Configuration
Application defines arrays to hold OCEOS internal data. User must specified array to accommodate all logging information. Please read OCEOS data area layouts
#define LOG_DATA_ARRAY_SIZE_U32S 0x100// Calculated value. Read manual U32_t log_data[LOG_DATA_ARRAY_SIZE_U32S]; ... /* * Create the application configuration structure */ struct application_configuration app_config = {0}; app_config.log_address = (adrs_t)log_data;
User must define number of log entries.
#define NUMBER_OF_LOG_ENTRIES 16 // 16 to 1024 /* * Create the application configuration structure */ struct application_configuration app_config = {0}; app_config.log_number_of_entries = NUMBER_OF_LOG_ENTRIES;
API Functions
| Directive | Description | main | task | IRQ handler |
|---|---|---|---|---|
| oceos_log_add_entry() | Add a log entry | * | * | * |
| oceos_log_remove_entry() | Read and remove the oldest unread log entry | * | * | * |
| oceos_log_get_indexed_entry() | Read the log entry at the given index | * | * | * |
| oceos_log_reset() | Clear all log entries and reset to empty | * | * | * |
| oceos_log_get_size() | Get the number of log entries | * | * | * |
oceos_log_add_entry()
Header File
system_log.h
Description
Prototype
Parameters
Parameter Description Returns
This function returns enum DIRECTIVE_STATUS.
enum DIRECTIVE_STATUS Description INCORRECT_STATE If system Meta pointer is NULL or Init pointer is NULL or Start up phase check fail or Fixed data checksum failed (check log)
INVALID_NAME If Start Sentinel for fixed area is corrupt or Start Sentinel for dynamic area is corrupt
INVALID_NUMBER If Configuration and actual parameters do not match (In configuration file was defined 5 tasks, but created less)
SUCCESSFUL If All OK Example Usage
oceos_log_remove_entry()
Header File
system_log.h
Description
Prototype
Parameters
Parameter Description Returns
This function returns enum DIRECTIVE_STATUS.
enum DIRECTIVE_STATUS Description INCORRECT_STATE If system Meta pointer is NULL or Init pointer is NULL or Start up phase check fail or Fixed data checksum failed (check log)
INVALID_NAME If Start Sentinel for fixed area is corrupt or Start Sentinel for dynamic area is corrupt
INVALID_NUMBER If Configuration and actual parameters do not match (In configuration file was defined 5 tasks, but created less)
SUCCESSFUL If All OK Example Usage
oceos_log_get_indexed_entry()
Header File
system_log.h
Description
Prototype
Parameters
Parameter Description Returns
This function returns enum DIRECTIVE_STATUS.
enum DIRECTIVE_STATUS Description INCORRECT_STATE If system Meta pointer is NULL or Init pointer is NULL or Start up phase check fail or Fixed data checksum failed (check log)
INVALID_NAME If Start Sentinel for fixed area is corrupt or Start Sentinel for dynamic area is corrupt
INVALID_NUMBER If Configuration and actual parameters do not match (In configuration file was defined 5 tasks, but created less)
SUCCESSFUL If All OK Example Usage
oceos_log_reset()
Header File
system_log.h
Description
Prototype
Parameters
Parameter Description Returns
This function returns enum DIRECTIVE_STATUS.
enum DIRECTIVE_STATUS Description INCORRECT_STATE If system Meta pointer is NULL or Init pointer is NULL or Start up phase check fail or Fixed data checksum failed (check log)
INVALID_NAME If Start Sentinel for fixed area is corrupt or Start Sentinel for dynamic area is corrupt
INVALID_NUMBER If Configuration and actual parameters do not match (In configuration file was defined 5 tasks, but created less)
SUCCESSFUL If All OK Example Usage
oceos_log_get_size()
Header File
system_log.h
Description
Prototype
Parameters
Parameter Description Returns
This function returns enum DIRECTIVE_STATUS.
enum DIRECTIVE_STATUS Description INCORRECT_STATE If system Meta pointer is NULL or Init pointer is NULL or Start up phase check fail or Fixed data checksum failed (check log)
INVALID_NAME If Start Sentinel for fixed area is corrupt or Start Sentinel for dynamic area is corrupt
INVALID_NUMBER If Configuration and actual parameters do not match (In configuration file was defined 5 tasks, but created less)
SUCCESSFUL If All OK Example Usage