los_stackinfo_pri.h

浏览该文件的文档.

/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2019-2020. All rights reserved.
 * Description: Stack Info Private Headfile
 * Author: Huawei LiteOS Team
 * Create: 2019-09-01
 * 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 "string.h"
#include "los_typedef.h"
#include "arch/exception.h"
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
 
typedef struct {
    VOID *stackTop;
    UINT32 stackSize;
    CHAR *stackName;
} StackInfo;
 
#define OS_INVALID_WATERLINE 0xFFFFFFFF
#define OS_STACK_MAGIC_CHECK(topOfStack) (*(UINTPTR *)(topOfStack) == OS_STACK_MAGIC_WORD) /* 1:magic valid 0:invalid */
 
extern VOID OsExcStackInfo(VOID);
extern VOID OsExcStackInfoReg(const StackInfo *stackInfo, UINT32 stackNum);
extern UINT32 OsStackWaterLineGet(const UINTPTR *stackBottom, const UINTPTR *stackTop, UINT32 *peakUsed);
extern VOID OsGetStackInfo(const StackInfo **stackInfo, UINT32 *stackNum);
 
STATIC INLINE VOID OsStackInit(VOID *topOfStack, UINT32 stacksize)
{
    /* initialize the task stack, write magic num to stack top */
    (VOID)memset(topOfStack, (INT32)OS_STACK_INIT, stacksize);
    *((UINTPTR *)topOfStack) = OS_STACK_MAGIC_WORD;
}
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* _LOS_STACK_INFO_PRI_H */