关键词: 嵌入式软件, 内存泄露检测, 动态插装, 动态检测, 分布式检测

Abstract: Dynamic memory assignment brings a great deal of flexibility for the C/C++ programmers, but this poses a potentially serious problem-memory leak. Compared with desktop systems, embedded systems have weak processing capability, small memory space, long running time. If memory leak occurs during the execution of a program, it results in  unexpected consequences. Therefore, it is necessary to find the code which causes a memory leak as early as possible. In this paper, a distributed memory leak detection method for embedded software is presented which is based on dynamic detection techniques and program instrumentation technology. The main idea of this method is that when the program is running on the target machine, the instrumentation code automatically intercepts memory operation functions, collects memory operation information and sends the  information to the server. The experimental results show that the performance of memory leak detection has been greatly improved through the use of distributed processing technology.

Key words: embedded software, memory leak detection, dynamic instrumentation, dynamic detection, distributed detection