kernel_liteos_a/kernel/base/include/los_stackinfo_pri.h

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2020-09-08 10:21:39 +08:00
/*
* 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.
*
* 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,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*/
#ifndef _LOS_STACK_INFO_PRI_H
#define _LOS_STACK_INFO_PRI_H
#include "los_typedef.h"
#include "arch_config.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
typedef struct {
VOID *stackTop;
UINT32 stackSize;
CHAR *stackName;
} StackInfo;
#define OS_INVALID_WATERLINE 0xFFFFFFFF
#define OS_STACK_MAGIC_CHECK(topstack) (*(UINTPTR *)(topstack) == OS_STACK_MAGIC_WORD) /* 1:magic valid 0:unvalid */
extern VOID OsExcStackInfo(VOID);
extern VOID OsExcStackInfoReg(const StackInfo *stackInfo, UINT32 stackNum);
extern VOID OsStackInit(VOID *stacktop, UINT32 stacksize);
/**
* @ingroup los_task
* @brief Get stack waterline.
*
* @par Description:
* This API is used to get stack waterline size and check stack whether overflow.
*
* @attention None
*
* @param stackBottom [IN] Type #const UINTPTR * pointer to stack bottom.
* @param stackTop [IN] Type #const UINTPTR * pointer to stack top.
* @param peakUsed [OUT] Type #UINT32 * stack waterline.
*
* @retval #LOS_NOK stack overflow
* @retval #LOS_OK stack is normal, not overflow
* @par Dependency:
* <ul><li>los_stackinfo_pri.h: the header file that contains the API declaration.</li></ul>
* @see
*/
extern UINT32 OsStackWaterLineGet(const UINTPTR *stackBottom, const UINTPTR *stackTop, UINT32 *peakUsed);
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_STACK_INFO_PRI_H */