los_cppsupport.h

/*
 * Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
 * Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
 *
 * 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.
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 * 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 of the copyright holder 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,
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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/**
 * @defgroup los_cppsupport c++
 * @ingroup kernel
 */

#ifndef _LOS_CPPSUPPORT_H
#define _LOS_CPPSUPPORT_H

#include "los_typedef.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/**
 * @ingroup los_cppsupport
 * If scatter load is disabled, this flag should be passed as the third parameter when LOS_CppSystemInit() is called.
 */
#define NO_SCATTER 2

/**
 * @ingroup los_cppsupport
 * @brief System cppsupport initialization.
 *
 * @par Description:
 * This API is used to initialize the cppsupport .
 * @attention
 * <ul>
 * <li>initArrayStart is the start address of .init_array section,
 * initArrayEnd is the end address of .init_array section.</li>
 * <li>initArrayStart must be smaller than initArrayEnd,
 * initArrayStart and initArrayEnd should be 4(32 bits platform) or 8(64 bits platform) bytes alignment.</li>
 * </ul>
 *
 * @param  initArrayStart  [IN] Start address of init_array section.
 * @param  initArrayEnd    [IN] End address of init_array section.
 * @param  flag            [IN] Under what circumstances when LOS_CppSystemInit() is called,
 *                              BEFORE_SCATTER, AFTER_SCATTER or NO_SCATTER.
 *
 * @retval 0 always return 0.
 * @par Dependency:
 * <ul><li>los_cppsupport.h: the header file that contains the API declaration.</li></ul>
 * @see None.
 */
extern INT32 LOS_CppSystemInit(UINTPTR initArrayStart, UINTPTR initArrayEnd, INT32 flag);

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* _LOS_CPPSUPPORT_H */