nuttx/arch/sim/src/up_schednote.c
2016-02-16 16:08:59 -06:00

198 lines
6.6 KiB
C

/****************************************************************************
* arch/sim/src/up_schednote.c
*
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <syslog.h>
#include <nuttx/sched.h>
#ifdef CONFIG_SCHED_INSTRUMENTATION
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: sched_note_start, sched_note_stop, sched_note_switch,
* sched_note_premption
*
* Description:
* Hooks to scheduler monitor
*
* Input Parameters:
* Varies
*
* Returned Value:
* None
*
****************************************************************************/
void sched_note_start(FAR struct tcb_s *tcb)
{
#ifdef CONFIG_SMP
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "CPU%d: Start %s, TCB@%p, state=%d\n",
tcb->cpu, tcb->name, tcb, tcb->task_state);
#else
lowsyslog(LOG_INFO, "CPU%d: Start TCB@%p, state=%d\n"
tcb->cpu, tcb, tcb->task_state);
#endif
#else
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "Start %s, TCB@%p, state=%d\n",
tcb->name, tcb, tcb->task_state);
#else
lowsyslog(LOG_INFO, "Start TCB@%p, state=%d\n",
tcb, tcb->task_state);
#endif
#endif
}
void sched_note_stop(FAR struct tcb_s *tcb)
{
#ifdef CONFIG_SMP
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "CPU%d: Stop %s, TCB@%p, state=%d\n",
tcb->cpu, tcb->name, tcb, tcb->task_state);
#else
lowsyslog(LOG_INFO, "CPU%d: Stop TCB@%p, state=%d\n",
tcb->cpu, tcb, tcb->task_state);
#endif
#else
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "Stop %s, TCB@%p, state=%d\n",
tcb->name, tcb, tcb->task_state);
#else
lowsyslog(LOG_INFO, "Stop TCB@%p, state=%d\n",
tcb, tcb->task_state);
#endif
#endif
}
void sched_note_switch(FAR struct tcb_s *from, FAR struct tcb_s *to)
{
#ifdef CONFIG_SMP
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "CPU%d: Suspend %s, TCB@%p, state=%d\n",
from->cpu, from->name, from, from->task_state);
lowsyslog(LOG_INFO, "CPU%d: Resume %s, TCB@%p, state=%d\n",
to->cpu, to->name, to, to->task_state);
#else
lowsyslog(LOG_INFO, "CPU%d: Suspend TCB@%p, state=%d\n",
from->cpu, from, from->task_state);
lowsyslog(LOG_INFO, "CPU%d: Resume TCB@%p, state=%d\n",
to->cpu, to, to->task_state);
#endif
#else
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "Suspend %s, TCB@%p, state=%d\n",
from->name, from, from->task_state);
lowsyslog(LOG_INFO, "Resume %s, TCB@%p, state=%d\n",
to->name, to, to->task_state);
#else
lowsyslog(LOG_INFO, "Suspend TCB@%p, state=%d\n",
from, from->task_state);
lowsyslog(LOG_INFO, "Resume TCB@%p, state=%d\n",
to, to->task_state);
#endif
#endif
}
#ifdef CONFIG_SCHED_INSTRUMENTATION_PREEMPTION
/* This does not work well... it interferes with the operation of the
* simulated /dev/console device which, of course, does disable preemption
* and does use critical sections.
*/
#warning CONFIG_SCHED_INSTRUMENTATION_PREEMPTION is a bad idea
void sched_note_premption(FAR struct tcb_s *tcb, bool locked)
{
#ifdef CONFIG_SMP
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "CPU%d: Task %s TCB@%p preemption %s\n",
tcb->cpu, tcb->name, tcb, locked ? "LOCKED" : "UNLOCKED");
#else
lowsyslog(LOG_INFO, "CPU%d: TCB@%p preemption %s\n",
tcb->cpu, tcb, locked ? "LOCKED" : "UNLOCKED");
#endif
#else
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "Task %s, TCB@%p preemption %s\n",
tcb->name, tcb, locked ? "LOCKED" : "UNLOCKED");
#else
lowsyslog(LOG_INFO, "TCB@%p preemption %s\n",
tcb, locked ? "LOCKED" : "UNLOCKED");
#endif
#endif
}
#endif
#ifdef CONFIG_SCHED_INSTRUMENTATION_CSECTION
/* This does not work well... it interferes with the operation of the
* simulated /dev/console device which, of course, does disable preemption
* and does use critical sections.
*/
#warning CONFIG_SCHED_INSTRUMENTATION_CSECTION is a bad idea
void sched_note_csection(FAR struct tcb_s *tcb, bool enter)
{
#ifdef CONFIG_SMP
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "CPU%d: Task %s TCB@%p critical section %s\n",
tcb->cpu, tcb->name, tcb, enter ? "ENTER" : "LEAVE");
#else
lowsyslog(LOG_INFO, "CPU%d: TCB@%p critical section %s\n",
tcb->cpu, tcb, enter ? "ENTER" : "LEAVE");
#endif
#else
#if CONFIG_TASK_NAME_SIZE > 0
lowsyslog(LOG_INFO, "Task %s, TCB@%p critical section %s\n",
tcb->name, tcb, enter ? "ENTER" : "LEAVE");
#else
lowsyslog(LOG_INFO, "TCB@%p critical section %s\n",
tcb, enter ? "ENTER" : "LEAVE");
#endif
#endif
}
#endif
#endif /* CONFIG_SCHED_INSTRUMENTATION */