1. Start gdb -q: Suppress unnecessary output. file a.out: Specify the debug file. gdb –args a.out a.txt: Specify arguments. set args a.txt: Specify arguments after starting gdb. run a.txt: Run with specified arguments. start a.txt: Start with specified arguments (break at main). cd $dir; path $dir: Specify environment variables. run > a.txt: Redirect output to … Read more
Follow+Star Public Account, don’t miss the wonderful content Source | Zhihu Wei Yixiao Embedded development cannot be separated from debugging tools, and there are many debugging tools on the market, but in terms of compatibility and versatility, GDB absolutely holds a leading advantage. Today, let’s talk about this powerful GDB tool. Naked Running State: The … Read more
Introduction to GDB GDB (GNU Debugger) is a powerful command-line debugging tool. Generally, when developing on Windows, command-line debugging is rarely used, as debuggers are mostly integrated with compilers in IDEs. Of course, you can also directly use gcc and gdb to compile and debug our C programs on Windows. For example, MinGW (a collection … Read more
From WeChat Official Account: Embedded and Linux Matters Starting To start gdb, simply type the gdb command in the shell. After starting, it will display the following information and show the gdb prompt. ➜ example gdb GNU gdb (Ubuntu 8.1.1-0ubuntu1) 8.1.1 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or … Read more
This article is compiled from “Debugging with GDB: the GNU Source-Level Debugger for GDB (GDB)” — Fsf Article Navigation ◈ Table of Contents00% ◈ break11% ◈ info breakpoints18% ◈ disable20% ◈ enable22% ◈ clear26% ◈ delete30% ◈ tbreak32% ◈ watch33% ◈ step36% ◈ reverse-step40% ◈ next42% ◈ reverse-next44% ◈ return46% ◈ finish48% ◈ until50% ◈ … Read more
Debugging C programs used to confuse me. However, when I was writing my operating system, I had many bugs to debug. I was fortunate to use the QEMU emulator, which allowed me to attach a debugger to my operating system. This debugger is gdb. — Julia Evans This article navigation ◈ 1. Set Breakpoints13% ◈ … Read more
(Click the public account above, follow quickly) Compiled by: Linux China / Lv Feng, English: Julia Evans https://linux.cn/article-9588-1.html This week, I discovered that I could call C functions from gdb. This seemed cool because I previously thought that gdb was just a read-only debugging tool at best. I was surprised that gdb could call functions. … Read more
1. Why Use Makefile for Compiling Multiple .C Files: (1). Generally, when we are developing a project, we will create a project with many directories, and each directory contains many .C files, which requires joint compilation. (2). If we compile manually, the multiple program files are intertwined, leading to dependencies and dependent relationships between different … Read more
In Chapter 3 of “Running Beginner’s Guide,” Ben Shu introduced the method of step-by-step debugging the kernel using Eclipse + QEMU. With the kernel compiled using Ben Shu’s unique O0 option, you can freely explore the kernel. Today, Ben Shu will introduce the IDE debugging tool developed by ARM: DS-5. DS-5 is a secondary development … Read more
First of all, I would like to thank everyone for their feedback on the last video. It was a very meaningful discussion. The performance of AC6 this time is astonishing; it can jump around even without optimization. 【Experiment Purpose】 The purpose is to test the debugging phenomena in the C environment with the same program … Read more