Process tracing method, process tracing system and related device

Abstract

The invention provides a process tracing method, which comprises the following steps of: when a process tracing request is received, calling a target thread to send a preset signal to other threads of a process so as to inform the other threads of executing information collection preparation; detecting whether all threads are ready to collect stack frames and register information or not; and if so, controlling all threads to collect stack frames and register information at the same moment, wherein the stack frames and the register information are used for tracing a process. According to the method, analysts can be helped to quickly analyze the process state, the influence on process invasion is low, the debugging function during operation is realized, and the process tracing process is simplified. The invention further provides a process tracing system, a computer readable storage medium and a server, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the field of operating systems, in particular to a process tracing method, a process tracing system and related devices. Background technique [0002] Under the LINUX system, when a process exits abnormally due to various reasons, it is necessary to trace the running information of the process when it exits: signal information, stack frame information, registers and other information, which can help analysts locate the root cause of the exit. In addition, when the process is running normally, it is necessary to view the information that the process is currently running to help debuggers determine the health status of the current process. At present, the commonly used debugging method is to use the GDB tool for debugging, but this tool has the following disadvantages: [0003] 1) Under the embedded linux operating system, due to limited system resources, it often cannot be installed on the target machine, cannot be de...

AI Technical Summary

Problems solved by technology

[0003] 1) Under the embedded linux operating system, due to limited system resources, it is often not possible to install on the target machine, and cannot be debugged locally. Only a cross-debugging environment can be built, which is inconvenient to use

[0004] 2) GDB needs to restart the program, add a breakpoint to stop, check what happened when it stopped, and cannot view the information of the process running time

In addition, this method is highly intrusive to the process and cannot realize the function of runtime debugging

[0005] 3) When the program exits abnormally, the kernel needs to generate a coredump, and then use the GDB tool to load the coredump to analyze the reason for the exit. This method is inconvenient

In addition, the kernel only generates coredump for the specified signal, this method is not universal

Images