77f0bea7创建于 4月21日历史提交
/****************************************************************************
 * arch/xtensa/src/esp32s2/esp32s2_user.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 <nuttx/arch.h>

#include <arch/loadstore.h>
#include <arch/xtensa/xtensa_corebits.h>

#include <sys/types.h>
#include <assert.h>
#include <debug.h>

#include "xtensa.h"

/****************************************************************************
 * Public Data
 ****************************************************************************/

/****************************************************************************
 * Private Data
 ****************************************************************************/

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

#ifdef CONFIG_ARCH_USE_TEXT_HEAP
#ifdef CONFIG_ENDIAN_BIG
#error not implemented
#endif
#ifndef CONFIG_BUILD_FLAT
#error permission check not implemented
#endif
#endif

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

/****************************************************************************
 * Name: xtensa_user
 *
 * Description:
 *   ESP32S2-specific user exception handler.
 *
 ****************************************************************************/

uint32_t *xtensa_user(int exccause, uint32_t *regs)
{
  /* xtensa_user_panic never returns. */

  xtensa_user_panic(exccause, regs);

  while (1)
    {
    }
}