System for automatically monitoring memory leakage and memory out-of-range in inlaid system

Abstract

The invention discloses a system for automatically monitoring memory leakage and overstep in an embedded system, comprising: memory application unit, memory release unit, module state sensing unit, management configuration unit and leakage memory release unit, where the module state sensing unit is connected with the memory application unit, memory release unit and leakage memory release unit to trigger them to operate the memory; the management configuration unit is connected with the memory application, memory release unit and leakage memory release unit; an alarm unit is connected with the memory release unit and the leakage memory release unit. And the system makes improper memory operations in an embedded system able to be found in time, beneficial to effective utilization of limited memory in the embedded system.

Description

technical field [0001] 本发明涉及一种嵌入式系统中自动监测内存泄漏与内存越界的系统,属于计算机技术领域。 Background technique [0002] 嵌入式系统是一种资源比较受限的系统,资源要比桌面PC更为宝贵,因而内存有效使用的重要性勿庸置疑。如何利用好有限的内存发挥最大效能,就成了嵌入式系统进一步发展的问题关键。 [0003] 然而,不恰当的内存操作通常阻碍了内存的使用,如:“内存泄漏”,也即不能正确地释放已分配的动态内存,就是一种非常难于检测的内存错误,持续的内存泄漏会使程序性能下降到最终完全不能运行,进而影响到所有其它有动态内存需求的程序,在某些相对简单的嵌入式平台上甚至会妨碍操作系统的运转;又如“内存越界”,一种不合法的内存操作,极可能破坏到本程序中正在使用的其它数据,严重的时候还可能对其它正在运行的程序甚至整个系统造成影响。 [0004] 因此如何有效地监测内存泄漏与内存越界是亟待解决的一个问题。 Contents of the invention [0005] 本发明要解决的技术问题是:提出一种能够自动监测内存泄漏与内存越界的系统,使得嵌入式系统中不恰当的内存操作能够及时发现,有利于嵌入式系统中有限内存的效率使用。 [0006] 本发明是通过下述技术手段来实现的: [0007] 一种嵌入式系统中自动监测内存泄漏与内存越界的系统,包括:内存申请单元、内存释放单元、模块状态感知单元、管理配置单元以及泄漏内存释放单元,其中: [0008] 所述的内存申请单元,用于内存申请过程操作; [0009] 所述的内存释放单元,用于内存释放过程操作; [0010] 所述的模块状态感知单元,用于接收应用程序模块的各种运行状态信息,并与所述的内存申请单元、内存释放单元以及泄漏内存释放单元连接,触发上述单元对内存进行操作; [0011] 所述的管理配置单元,用于建立和实时更新保存模块的标识、模块使用内存情况以及模块分配内存地址的内存索引,与所述的内存申请单元、内存释放单元以及泄漏内存释放单元连接; [0012] 所述的泄漏内存释放单元,用于判断是否存在泄漏内存并释放泄漏内存; [0013] 所述的报警单元,用于进行内存泄漏与内存越界地报警,与所述的内存...

AI Technical Summary

Problems solved by technology

[0003] However, inappropriate memory operations usually hinder the use of memory, such as: "memory leak", that is, the failure to correctly release the allocated dynamic memory, is a very difficult memory error to detect, continuous memory leaks will make the program The performance drops to the point that it cannot run at all, and then affects all other programs with dynamic memory requirements, and even hinders the operation of the operating system on some relatively simple embedded platforms; another example is "memory out of bounds", an illegal Memory operations are very likely to destroy other data being used in this program, and in severe cases may also affect other running programs or even the entire system

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