Method and device for processing application process commands in Linux system

Abstract

The invention provides a method and a device for processing application process commands in a Linux system. In an application progress in the Linux system, threads are increased and a shell module is generated; a shell progress is introduced into the Linux system; the shell progress interacts with the shell module in the application progress. The method includes pre-setting a shell progress command and creating a command shared file by the shell progress; acquiring a command string input from a serial port of the Linux system by the shell progress; judging whether the command string is a shell progress command or not by the shell progress; if yes, analyzing and executing the command string by the shell progress, and if not, writing the command string into the command shared file and sending a signal to the shell module in the designated application progress by the shell progress; acquiring the command string from the command shared file by the shell module after receiving the signal. By the method and the device, execution conditions of the application progress can be checked at any time under the condition that normal operation of the application progress is not affected.

Description

technical field [0001] The invention relates to the technical field of LINUX, in particular to a method and a device for processing application process commands in a LINUX system. Background technique [0002] In a specific implementation, the user can obtain the execution status of the application process in the following three ways. [0003] 1) GDB debugging to view the running status [0004] GDB is a powerful application process debugging tool under UNIX system released by the GNU open source organization. It is also the default debugger of the LINUX system and can be used to debug embedded real-time systems. GDB has two ways to debug and track the running application process: one is to use the ps command under LINUX to view the process identification PID of the running application process, and then use the GDB PID format to mount the running application process; It is to use GDB to associate the source code first, then use GDB to debug, and use the attach command in G...

AI Technical Summary

Problems solved by technology

Although GDB can conveniently suspend the running of the application process, so as to view the variables when the application process is running and the flow of the application process when it is running, this method of interrupting the running of the application process for positioning cannot be applied to the continuous running of the application process. application scenarios

[0012] 2) The application process actively reports the execution status regularly and cannot meet the real-time requirements

[0015] The remote simulated shell sends the shell command to the required terminal through communication, and the communication of each intermediate node is required to be completely normal. This method is invalid when the communication is blocked.

In addition, the specified shell command needs to be registered by the user before it can be used, and the number of registered commands is limited. In an emergency, if the command to be executed is not registered, there is nothing you can do

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