cpukit/score/src/profilingisrentryexit.c


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/*
 * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifdef HAVE_CONFIG_H
  #include "config.h"
#endif

#include <rtems/score/profiling.h>

void _Profiling_Outer_most_interrupt_entry_and_exit(
  Per_CPU_Control *per_cpu,
  CPU_Counter_ticks interrupt_entry_instant,
  CPU_Counter_ticks interrupt_exit_instant
)
{
#if defined( RTEMS_PROFILING )
  Per_CPU_Stats *stats = &per_cpu->Stats;
  CPU_Counter_ticks delta = _CPU_Counter_difference(
    interrupt_exit_instant,
    interrupt_entry_instant
  );

  ++stats->interrupt_count;
  stats->total_interrupt_time += delta;

  if ( stats->max_interrupt_time < delta ) {
    stats->max_interrupt_time = delta;
  }
#else
  (void) per_cpu;
  (void) interrupt_entry_instant;
  (void) interrupt_exit_instant;
#endif
}