nuttx/mm/kasan/kasan.h

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/****************************************************************************
* mm/kasan/kasan.h
*
* 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.
*
****************************************************************************/
#ifndef __MM_KASAN_KASAN_H
#define __MM_KASAN_KASAN_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <stddef.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_MM_KASAN
# define kasan_poison(addr, size)
# define kasan_unpoison(addr, size)
# define kasan_register(addr, size)
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
#ifdef CONFIG_MM_KASAN
/****************************************************************************
* Name: kasan_poison
*
* Description:
* Mark the memory range as inaccessible
*
* Input Parameters:
* addr - range start address
* size - range size
*
* Returned Value:
* None.
*
****************************************************************************/
void kasan_poison(FAR const void *addr, size_t size);
/****************************************************************************
* Name: kasan_unpoison
*
* Description:
* Mark the memory range as accessible
*
* Input Parameters:
* addr - range start address
* size - range size
*
* Returned Value:
* None.
*
****************************************************************************/
void kasan_unpoison(FAR const void *addr, size_t size);
/****************************************************************************
* Name: kasan_register
*
* Description:
* Monitor the memory range for invalid access check
*
* Input Parameters:
* addr - range start address
* size - range size
*
* Returned Value:
* None.
*
* Note:
* The size is shrinked for the shadow region
*
****************************************************************************/
void kasan_register(FAR void *addr, FAR size_t *size);
#endif /* CONFIG_MM_KASAN */
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __MM_KASAN_KASAN_H */