1. Basics of Macro Definition: The Essence of Text Replacement A macro is one of the core functionalities of the C language preprocessing phase, and it is essentially text replacement, expanded by the preprocessor before compilation. Basic Syntax #define macro_name replacement_text Example: #define PI 3.1415926 #define MAX(a, b) ((a) > (b) ? (a) : (b)) … Read more
The C Language in Operating Systems: Applications of C in the Linux Kernel In the field of operating systems, the C language is undoubtedly a crucial programming language. Especially in the development of the Linux kernel, C serves as the primary programming language, allowing users to interact with hardware at a lower level. In this … Read more
Table of Contents 1 Definition of the Linux Kernel ARM64 Interrupt Vector Table 2 Setting the Base Address of the Interrupt Vector Table in Linux Kernel ARM64 3 Introduction to the kernel_ventry Macro 4 Unimplemented Exception Vectors: elx_yyy_invalid 5 Introduction to el1_irq – Jumping to the Registered Handler Function 6 handle_domain_irq 7 Introduction to Interrupt … Read more
✦ ✧ RISC-V March Progress Report ✦ Meta is Testing Its First RISC-V Based Chip for AI Training According to a report by Tom’s Hardware on March 11, 2025, Meta is testing its first AI chip based on the RISC-V architecture for AI training. Previously, Meta primarily used high-end AI GPUs from NVIDIA, such as … Read more
Introduction This article provides a brief overview of some knowledge related to Embedded Linux, serving as a reference for those who, like me, wish to advance from microcontroller programming to Embedded Linux. With the increasing number of tutorials on Embedded Linux, I believe many friends studying microcontrollers have started to explore this area. What to … Read more
Guests | Zhang Yu, Duan Xiongchun, Song Muchun, Xie Yongji, Deng Liang Author | Ling Min With the rapid evolution of the internet, many star products shine under the halo of the times; but behind the noise, there is a group of people quietly safeguarding the stability of the internet world. Today, we introduce this … Read more
Postscript: Today is a short comic, mainly intended to illustrate a principle: the key to a clean codebase is not the type of language used, but the people maintaining that codebase. Regardless of how well-designed the codebase is or how advanced the programming language used, if the original principles are not upheld, the end result … Read more
Introduction This article provides a brief overview of some knowledge related to Embedded Linux, serving as a reference for those who, like me, wish to advance from microcontroller programming to Embedded Linux. With the increasing number of tutorials on Embedded Linux, I believe many friends studying microcontrollers have started to explore this area. What to … Read more
Follow+Star Public Account Number, don’t miss out on exciting content Source | Baiwen Technology WeChat Public Account | Embedded Column The Linux kernel source code contains numerous files, and it can be confusing to understand the relationship between Makefile, Kconfig, and .config. Without a clear understanding of the kernel compilation system, one may struggle with … Read more
(Click the public account above to quickly follow) English: SOFTPEDIA, Translation: Open Source China Community www.oschina.net/news/88954/ubuntu-17-10-powered-by-linux-kernel-4-13-gcc-7-2 If you have good articles to submit, please click → here for details The upcoming Ubuntu 17.10 (Artful Aardvark) operating system is powered by the latest Linux Kernel 4.13 and will be included in the stable repository along with … Read more