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https://github.com/zephyrproject-rtos/zephyr
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ef4521396e
This feature is still under development, so it's APIs shouldn't be publicly advertised yet. And while they are being relocated, they are renamed to adhere to kernel coding conventions. Change-Id: I7a41d98e2fbb3b975fa42814cf64854f8cc0b623 Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/* 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 <minik.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_proc *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 = timer_read();
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k_monitor_wptr->data1 = X->Ident;
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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->Ident, timer_read());
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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 = timer_read();
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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->Ident;
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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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