Implementation method of lightweight debugging tool applied to avionics software

Abstract

The invention discloses an implementation method of a lightweight debugging tool applied to avionics software, the debugging tool comprises a debugging tool process for providing a user operation interface and a debugging thread embedded into a target process, and the debugging tool process and the debugging thread communicate with each other through a socket; A debugging thread is embedded into atarget process, resides in the target process and is used for completing symbol table analysis, memory read-write, stack analysis and code segment execution; standard output and standard abnormal output of all target programs are redirected to a socket handle through a dump system calling interface provided by linux and transmitted to a debugging tool process from socket, and the debugging tool process receives data and then displays the data on an operation control interface. The lightweight debugging tool has no external dependence, supports a linux operating system platform and does not cause 'pause 'of a target program, and is particularly suitable for the technical field of airborne embedded software.

Description

technical field [0001] The invention relates to the technical field of airborne embedded software, in particular to an implementation method of a lightweight debugging tool applied to avionics software. Background technique [0002] With the development of electronic technology, in the field of civil avionics (Avionics), the on-board system is becoming larger and larger, and the embedded software running in the system is also more complex. A large number of Linux operating systems have been introduced into modern avionics system software, and the services provided by the operating system can provide richer business functions to meet customers' ever-improving experience needs. [0003] The increasingly complex avionics software system will inevitably introduce more software faults and errors, so it is necessary to provide the necessary fault and error location and troubleshooting means in the avionics software system. The most common troubleshooting methods are operation log...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the existing debugging tools applied to the linux system of avionics software rely on various third-party libraries. If all the dependent libraries are imported into the avionics software system, the complexity will increase and take up more More resources will also increase the cost of airworthiness certification of avionics software; in addition, the debugging of the target program by the existing debugging tools will cause the target program to "pause" (all threads stop executing, and the PC pointer stays at the current position, waiting for the debugging tool to send Subsequent operation "command"), which cannot be covered for some scenarios that require the continuous operation of the target program

Images