50 lines
1023 B
C
50 lines
1023 B
C
/**
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* @file access.c
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* @author zhangzheng (1358745329@qq.com)
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* @brief
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* @version 0.1
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* @date 2023-12-05
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*
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* @copyright Copyright (c) 2023
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*
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*/
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#include "types.h"
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#include <task.h>
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#include <mm_space.h>
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#include <thread.h>
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#include <util.h>
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/**
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* @brief 检测内存是否可访问
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* TODO: 需要检查动态申请的内存
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* @param tg_task 目标进程
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* @param addr 开始地址
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* @param size 大小
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* @param ignore_null 是否忽略nullptr
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* @return bool_t TRUE：可访问，FALSE：不可访问
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*/
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bool_t is_rw_access(task_t *tg_task, void *addr, size_t size, bool_t ignore_null)
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{
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if (tg_task == NULL)
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{
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return FALSE;
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}
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#if !IS_ENABLED(CONFIG_MMU)
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if (addr == NULL && ignore_null)
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{
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return TRUE;
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}
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void *mem;
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size_t mem_size;
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mm_space_get_ram_block(&tg_task->mm_space, &mem, &mem_size);
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if (mem <= addr && (((char *)addr + size) <= ((char *)mem + mem_size)))
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{
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return TRUE;
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}
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return FALSE;
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#else
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return TRUE;
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#endif
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}
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