Programmer Think

Demand: 1. Create a per-cpu variable, initialize and modify it 2.per-cpu variable is a synchronization mechanism in Linux kernel. When all CPUs in the system access and share a variable V, CPU0 modifies the value of variable V. CPU1 also modif ...

linux Kernel Learning 10 - Start with the first kernel module 1. Preparations c File #include <linux/init.h> #include <linux/module.h> // The kernel module initialization function can load a kernel module through the insmod comman ...

work environment System: macOS Mojave 10.14.6 CMake: Version 3.15.0-rc4 Hello,World! - Custom compilation options CMake allows you to add compilation options to your project, so that you can choose the most appropriate compilation solution based on the user's environment and needs. For example, you can set the MathFunctions library as an opti ...

Links to the original text: https://www.cnblogs.com/webor2006/p/4509729.html Last time, we encapsulated the string tool module. This time, we mainly encapsulated the parameter configuration module. There are many configuration-related op ...

First login 7z official organization website https://www.7-zip.org/ Friends with poor English can switch to Chinese first. Open the LZMA SDK page on the left and download the latest SDK and instructions as shown below. After downloading, SD ...

1. New Construction Select New Project - > Application - > Qt Widgets Application - > Choose in the Welcom interface Enter the project name Name, and select the project storage path, click Next. The next page continues to click Next (as the default project path, you decide not to check). Select Base class as Qwidget, enter Class name ...

Configuration and compilation of linux kernel Select the Linux kernel transplanted by Jiuding s5pv210 development board, and download the address as follows: Links: http://pan.baidu.com/s/1sl15QMD Password: by3o 1. First check Makefile Check Makefile to see two variables in Makefile: ARCH and CROS_COMPILE. (1) Check whether the cross-co ...

Database Architecture: One Primary and Two Subordinate master: 192.168.0.11 slave1: 192.168.0.201 slave2: 192.168.0.202 MHA software: Download address mha4mysql-manager-0.57.tar.gz mha4mysql-node-0.57.tar.gz The Manager Toolkit mainly includes the following tools: Masha_check_ssh Checks the SSH configuration of MHA Masha_check_repl che ...

This article takes one of my small projects as an example to illustrate the basic writing of Makefile files for GNU Make.Since I haven't read the GNU Make documentation carefully and don't know about the POSIX-compliant Makefile format, I may not be writing a Makefile very seriously, so don't hesitate to ask someone who is good at it. My small ...

Refer to github: https://github.com/bonnyfone/adb-arm The original purpose was to get shell privileges using adb shell after the arm platform compiled, and then avoid the problem that other privileges could not execute su. At first, I modified the su.c in the android source code, commented out the root and shell permission validation part, co ...