Kprobe is a powerful debugging and tracing tool in the Linux kernel that allows developers to dynamically insert breakpoints at almost any instruction in the kernel, enabling the collection of debugging and performance information without the need to reboot the system, modify the kernel source code, or recompile the kernel. In the previous article, Introduction … Read more
This article is aimed at those who want to develop a debugger for the Linux Armv8a architecture. It can serve as a reference, and I will use my experience from developing two debuggers to clearly describe the key technical details in as simple language as possible.Due to space limitations, this article will only discuss the … Read more
In addition to measuring basic parameters such as voltage, current, resistance, capacitance, and inductance, digital multimeters can be adapted for various uses, expanding their functionality to achieve a multi-purpose tool. Here is a method for using a digital multimeter to determine internal breakpoints in wires and cables: when there is an internal break in the … Read more
A multimeter is the preferred tool for electricians to troubleshoot faults. For many electricians, short circuit faults are easy to check with a multimeter, but finding breakpoints is not as straightforward. Today, I will share a method for using a multimeter to check for wire breakpoints. The steps are as follows:1. Connect one end of … Read more