Method of parallel regulating multi-task of imbedding system

Abstract

A method for multitasking concurrent debugging of an embedded system, comprising the following steps: setting at least one stack trace record area for each stack in the memory, and initializing; executing the print information record function, and calling the print content preservation function during the printing process Save the print information to the stack trace record area; respectively execute the entry trace record function at the entrance and the exit trace record function at the exit, and perform instrumentation at the function entry and exit of the application program respectively; call for stack trace The analysis and debugging function of the record area is used to display the basic information of all stack trace record areas, the function call process of the specified stack trace record area and the saved print content of the specified stack trace record area. The method of the invention does not affect the task scheduling process of the tested software, and smoothly executes multi-task concurrent debugging; the analysis of software abnormality directly uses the information recorded in the stack trace recording area without analyzing hardware, so the implementation is simple and easy to use.

Description

technical field [0001] The invention relates to a method for multi-task concurrent debugging of an embedded system in the communication field. Background technique [0002] In the software developed on the embedded operating system, such as communication software, a large number of state machine processing mechanisms are used. The traditional debugging method can be summarized as the following process: set a breakpoint--program pause--observe the program state--continue to run. However, the traditional method of setting breakpoints for debugging is time-consuming and laborious. If you want to check whether a message has arrived, you need to set a breakpoint in the message processing function and wait for the message to arrive. When the message arrives, the program stops and then single-step tracking , and observe whether it is consistent with the design. Moreover, after the breakpoint is stopped, due to the concurrency of the multi-tasking system, the environment after the ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to overcome that the existing software debugging technology is not well applicable to multi-task concurrent debugging;

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