nuttx/arch/z80/src/common/z80_assert.c

/****************************************************************************
 * arch/z80/src/common/z80_assert.c
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <stdint.h>
#include <stdlib.h>
#include <assert.h>
#include <debug.h>

#include <nuttx/irq.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/syslog/syslog.h>
#include <nuttx/usb/usbdev_trace.h>

#include "chip.h"
#include "z80_arch.h"
#include "sched/sched.h"
#include "z80_internal.h"

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* USB trace dumping */

#ifndef CONFIG_USBDEV_TRACE
#  undef CONFIG_ARCH_USBDUMP
#endif

#ifndef CONFIG_BOARD_RESET_ON_ASSERT
#  define CONFIG_BOARD_RESET_ON_ASSERT 0
#endif

/****************************************************************************
 * Private Functions
 ****************************************************************************/

/****************************************************************************
 * Name: _up_assert
 ****************************************************************************/

static void _up_assert(void)
{
  /* Flush any buffered SYSLOG data */

  syslog_flush();

  /* Are we in an interrupt handler or the idle task? */

  if (up_interrupt_context() || running_task()->flink == NULL)
    {
      up_irq_save();
      for (; ; )
        {
#if CONFIG_BOARD_RESET_ON_ASSERT >= 1
          board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
#endif
#ifdef CONFIG_ARCH_LEDS
          board_autoled_on(LED_PANIC);
          up_mdelay(250);
          board_autoled_off(LED_PANIC);
          up_mdelay(250);
#endif
        }
    }
  else
    {
#if CONFIG_BOARD_RESET_ON_ASSERT >= 2
      board_reset(CONFIG_BOARD_ASSERT_RESET_VALUE);
#endif
    }
}

/****************************************************************************
 * Name: assert_tracecallback
 ****************************************************************************/

#ifdef CONFIG_ARCH_USBDUMP
static int usbtrace_syslog(FAR const char *fmt, ...)
{
  va_list ap;

  /* Let vsyslog do the real work */

  va_start(ap, fmt);
  vsyslog(LOG_EMERG, fmt, ap);
  va_end(ap);
  return OK;
}

static int assert_tracecallback(struct usbtrace_s *trace, void *arg)
{
  usbtrace_trprintf(FAR usbtrace_syslog, trace->event, FAR trace->value);
  return 0;
}
#endif

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: up_assert
 ****************************************************************************/

void up_assert(const char *filename, int lineno)
{
#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG_ALERT)
  struct tcb_s *rtcb = running_task();
#endif

  board_autoled_on(LED_ASSERTION);

  /* Flush any buffered SYSLOG data (from prior to the assertion) */

  syslog_flush();

#if CONFIG_TASK_NAME_SIZE > 0
  _alert("Assertion failed at file:%s line: %d task: %s\n",
        filename, lineno, rtcb->name);
#else
  _alert("Assertion failed at file:%s line: %d\n",
        filename, lineno);
#endif

  REGISTER_DUMP();
  up_stackdump();

#ifdef CONFIG_ARCH_USBDUMP
  /* Dump USB trace data */

  usbtrace_enumerate(assert_tracecallback, NULL);
#endif

  /* Flush any buffered SYSLOG data (from the above) */

  syslog_flush();

#ifdef CONFIG_BOARD_CRASHDUMP
  /* Execute board-specific crash dump logic */

  board_crashdump(z80_getsp(), running_task(), filename, lineno);
#endif

  _up_assert();
}