135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/****************************************************************************
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* mm/kasan/kasan.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __MM_KASAN_KASAN_H
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#define __MM_KASAN_KASAN_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stddef.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_MM_KASAN
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# define kasan_poison(addr, size)
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# define kasan_unpoison(addr, size)
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# define kasan_register(addr, size)
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# define kasan_init_early()
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#ifdef CONFIG_MM_KASAN
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/****************************************************************************
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* Name: kasan_poison
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*
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* Description:
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* Mark the memory range as inaccessible
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*
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* Input Parameters:
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* addr - range start address
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* size - range size
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void kasan_poison(FAR const void *addr, size_t size);
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/****************************************************************************
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* Name: kasan_unpoison
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*
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* Description:
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* Mark the memory range as accessible
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*
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* Input Parameters:
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* addr - range start address
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* size - range size
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void kasan_unpoison(FAR const void *addr, size_t size);
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/****************************************************************************
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* Name: kasan_register
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*
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* Description:
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* Monitor the memory range for invalid access check
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*
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* Input Parameters:
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* addr - range start address
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* size - range size
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*
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* Returned Value:
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* None.
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*
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* Note:
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* The size is shrinked for the shadow region
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*
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****************************************************************************/
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void kasan_register(FAR void *addr, FAR size_t *size);
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/****************************************************************************
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* Name: kasan_init_early
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*
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* Description:
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* Initialize the kasan early, setup g_region_init variable.
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* This used for some platfroms clear bss late, and error use kasan before
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* called kasan_register().
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*
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* Input Parameters:
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* None.
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*
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* Returned Value:
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* None.
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*
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****************************************************************************/
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void kasan_init_early(void);
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#endif /* CONFIG_MM_KASAN */
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __MM_KASAN_KASAN_H */
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