A Method Applicable to Multi-task Software Process Stack Usage Depth Detection

Abstract

The invention discloses a method suitable for process stack use depth detection of multi-task software. The method comprises the steps of firstly, generating a stack depth detection instruction on the ground; secondly, creating a plurality of processes and allocating stack regions and process control blocks to the processes; thirdly, initializing the stack regions of all the processes into specific identifiers; fourthly, executing the processes and enabling application software to execute a maximum running path test; fifthly, upwards injecting the stack depth detection instruction to an SRAM run by the task software; and finally, performing detection to obtain first addresses which are not specific identifiers in the processes, making a calculation to obtain a use depth ratio of the ith process stack region, and downwards transmitting the use depth ratio to the ground through a test control channel. Compared with the prior art, the method has the advantages that by generating the stack depth detection instruction on the ground, the shortcoming that general stack depth detection can be carried out by installing professional detection software or by virtue of special hardware is overcome; and the method is simple and easy to use.

Description

technical field [0001] The invention relates to the field of software testing, in particular to a method suitable for deep detection of multi-task software process stack usage. Background technique [0002] The spacecraft central processing unit software (or integrated processing unit software) is usually a large embedded software, which consists of operating system software and application software. Among them, the application software runs on the operating system software, and the operating system software is the application software Provide functions such as hardware management, interrupt management, and process management. The on-board operating system software widely adopts RTEMS system or VxWorks system. On-orbit spacecraft or satellites are limited by the hardware level. The memory resources of spaceborne equipment computers are generally only a few megabytes. The allocation method uses static allocation to avoid the risk of memory leaks. At the same time, in order to...

AI Technical Summary

Problems solved by technology

The main disadvantage of dynamic testing technology is that it can only detect code that actually overflows dynamically

In fact, only a very small amount of code can trigger stack overflow, so dynamic testing technology cannot detect all possible stack overflow codes, and the stack depth tested by it is often less than or equal to the actual maximum depth of the stack

In addition, the above-mentioned test methods generally require the use of special tools, and the test and analysis are relatively complicated, which may not be applicable to spacecraft application software.

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