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Diffstat (limited to 'common/src/tx_trace_initialize.c')
| -rw-r--r-- | common/src/tx_trace_initialize.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/common/src/tx_trace_initialize.c b/common/src/tx_trace_initialize.c new file mode 100644 index 00000000..1be5408c --- /dev/null +++ b/common/src/tx_trace_initialize.c @@ -0,0 +1,152 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) Microsoft Corporation. All rights reserved. */ +/* */ +/* This software is licensed under the Microsoft Software License */ +/* Terms for Microsoft Azure RTOS. Full text of the license can be */ +/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ +/* and in the root directory of this software. */ +/* */ +/**************************************************************************/ + + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** ThreadX Component */ +/** */ +/** Trace */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#define TX_SOURCE_CODE + + +/* Include necessary system files. */ + +#include "tx_api.h" +#include "tx_trace.h" +#ifdef TX_ENABLE_EVENT_TRACE + + +/* Define the pointer to the start of the trace buffer control structure. */ + +TX_TRACE_HEADER *_tx_trace_header_ptr; + + +/* Define the pointer to the start of the trace object registry area in the trace buffer. */ + +TX_TRACE_OBJECT_ENTRY *_tx_trace_registry_start_ptr; + + +/* Define the pointer to the end of the trace object registry area in the trace buffer. */ + +TX_TRACE_OBJECT_ENTRY *_tx_trace_registry_end_ptr; + + +/* Define the pointer to the starting entry of the actual trace event area of the trace buffer. */ + +TX_TRACE_BUFFER_ENTRY *_tx_trace_buffer_start_ptr; + + +/* Define the pointer to the ending entry of the actual trace event area of the trace buffer. */ + +TX_TRACE_BUFFER_ENTRY *_tx_trace_buffer_end_ptr; + + +/* Define the pointer to the current entry of the actual trace event area of the trace buffer. */ + +TX_TRACE_BUFFER_ENTRY *_tx_trace_buffer_current_ptr; + + +/* Define the trace event enable bits, where each bit represents a type of event that can be enabled + or disabled dynamically by the application. */ + +ULONG _tx_trace_event_enable_bits; + + +/* Define a counter that is used in environments that don't have a timer source. This counter + is incremented on each use giving each event a unique timestamp. */ + +ULONG _tx_trace_simulated_time; + + +/* Define the function pointer used to call the application when the trace buffer wraps. If NULL, + the application has not registered a callback function. */ + +VOID (*_tx_trace_full_notify_function)(VOID *buffer); + + +/* Define the total number of registry entries. */ + +ULONG _tx_trace_total_registry_entries; + + +/* Define a counter that is used to track the number of available registry entries. */ + +ULONG _tx_trace_available_registry_entries; + + +/* Define an index that represents the start of the registry search. */ + +ULONG _tx_trace_registry_search_start; + +#endif + + +/**************************************************************************/ +/* */ +/* FUNCTION RELEASE */ +/* */ +/* _tx_trace_initialize PORTABLE C */ +/* 6.0 */ +/* AUTHOR */ +/* */ +/* William E. Lamie, Microsoft Corporation */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function initializes the various control data structures for */ +/* the trace component. */ +/* */ +/* INPUT */ +/* */ +/* None */ +/* */ +/* OUTPUT */ +/* */ +/* None */ +/* */ +/* CALLS */ +/* */ +/* None */ +/* */ +/* CALLED BY */ +/* */ +/* _tx_initialize_high_level High level initialization */ +/* */ +/* RELEASE HISTORY */ +/* */ +/* DATE NAME DESCRIPTION */ +/* */ +/* 05-19-2020 William E. Lamie Initial Version 6.0 */ +/* */ +/**************************************************************************/ +VOID _tx_trace_initialize(VOID) +{ + +#ifdef TX_ENABLE_EVENT_TRACE +#ifndef TX_DISABLE_REDUNDANT_CLEARING + + /* Initialize all the pointers to the trace buffer to NULL. */ + _tx_trace_header_ptr = TX_NULL; + _tx_trace_registry_start_ptr = TX_NULL; + _tx_trace_registry_end_ptr = TX_NULL; + _tx_trace_buffer_start_ptr = TX_NULL; + _tx_trace_buffer_end_ptr = TX_NULL; + _tx_trace_buffer_current_ptr = TX_NULL; +#endif +#endif +} + |