124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/* k_task_monitor.c - microkernel task monitoring subsystem */
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/*
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* Copyright (c) 1997-2010, 2013-2015 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef CONFIG_TASK_MONITOR
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#include <micro_private.h>
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#include <microkernel/ticks.h>
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#include <drivers/system_timer.h>
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#include <toolchain.h>
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#include <sections.h>
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static struct k_mrec __noinit k_monitor_buff[CONFIG_TASK_MONITOR_CAPACITY];
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static const int k_monitor_capacity = CONFIG_TASK_MONITOR_CAPACITY;
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const int _k_monitor_mask = CONFIG_TASK_MONITOR_MASK;
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static struct k_mrec *k_monitor_wptr = k_monitor_buff;
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static int k_monitor_nrec = 0;
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static int K_monitor_wind = 0;
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k_task_monitor_hook_t _k_task_switch_callback = NULL;
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extern const int _k_num_events;
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void task_monitor_hook_set(k_task_monitor_hook_t func)
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{
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_k_task_switch_callback = func;
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}
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void _k_task_monitor(struct k_task *X, uint32_t D)
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{
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#ifdef CONFIG_TASK_DEBUG
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if (!_k_debug_halt)
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#endif
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{
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k_monitor_wptr->time = _sys_clock_cycle_get();
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k_monitor_wptr->data1 = X->id;
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k_monitor_wptr->data2 = D;
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if (++K_monitor_wind == k_monitor_capacity) {
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K_monitor_wind = 0;
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k_monitor_wptr = k_monitor_buff;
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} else {
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++k_monitor_wptr;
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}
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if (k_monitor_nrec < k_monitor_capacity) {
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k_monitor_nrec++;
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}
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}
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if ((_k_task_switch_callback != NULL) && (D == 0)) {
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(_k_task_switch_callback)(X->id, _sys_clock_cycle_get());
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}
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}
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void _k_task_monitor_args(struct k_args *A)
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{
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#ifdef CONFIG_TASK_DEBUG
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if (!_k_debug_halt)
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#endif
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{
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k_monitor_wptr->time = _sys_clock_cycle_get();
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if ((uint32_t)A < _k_num_events) {
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k_monitor_wptr->data2 = MO_EVENT | (uint32_t)A;
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} else {
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k_monitor_wptr->data1 = _k_current_task->id;
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k_monitor_wptr->data2 = MO_LCOMM | A->Comm;
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}
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if (++K_monitor_wind == k_monitor_capacity) {
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K_monitor_wind = 0;
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k_monitor_wptr = k_monitor_buff;
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} else {
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++k_monitor_wptr;
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}
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if (k_monitor_nrec < k_monitor_capacity) {
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k_monitor_nrec++;
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}
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}
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}
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void _k_task_monitor_read(struct k_args *A)
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{
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A->args.z4.nrec = k_monitor_nrec;
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if (A->args.z4.rind < k_monitor_nrec) {
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int i = K_monitor_wind - k_monitor_nrec + A->args.z4.rind;
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if (i < 0) {
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i += k_monitor_capacity;
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}
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A->args.z4.mrec = k_monitor_buff[i];
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}
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}
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#endif /* CONFIG_TASK_MONITOR */
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