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Research of Analyzing the Running Status of Embedded Operating System

Author: JiangHao
Tutor: HuGuanRong
School: Huazhong University of Science and Technology
Course: Computer Applications
Keywords: Embedded operating system Running state Boundary scan test
CLC: TP316
Type: Master's thesis
Year: 2008
Downloads: 40
Quote: 1
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Abstract


In recent years, with the rapid development of embedded technology , embedded system has been widely penetrated into all aspects of people's daily life . A wide variety of embedded systems , ARM family of processors is currently the most widely used processors . Become a common embedded operating system Linux operating system open source and stable . Has great significance in the development of embedded systems , embedded - based operating system running state analysis , monitoring tools . On the basis of various embedded operating system running state analysis techniques is given and an analysis based on the operating system running state of the boundary-scan test (JTAG) technology for the embedded Linux operating system running on the ARM programs. The parallel port of the host through a conversion buffer circuit connected to the JTAG port of the target machine , the host writes through the parallel port to operate the JTAG port of the target machine , by reading the parallel port to get information from the target JTAG shift . JTAG operation interface module is packaged as a dynamic library , the upper analysis module channel to access to information and the operation of the target machine , the module stopping the target system is running , read and write registers , read-write memory , set breakpoints and watch points , recovery program run was interrupted , and other functions . JTAG operations by calling the interface , the upper module running on the ARM processor embedded Linux operating system running state . The analysis focuses on two parts of the process and memory . Part of the process of the kernel function call chain analysis , The process relationship analysis , the process described in the character content analysis . Portion of memory to achieve a state analysis of physical memory usage , virtual memory usage analysis , analysis of the page table .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Operating system
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