最近有debug linux kernel的需求,在mac上配置了一套环境,最后效果是一个可debug的内核,连带一组软件包,可以直接在其上编译和运行代码和debug,避免了静态编译再打包拷贝,并且配置了vscode,可以可视化debug。 以kernel 5.13为例,所有脚本和编译之后的内核放在git上,可以快速搭建起整个环境 DKernel-Plus 6
1. 执行/usr/bin/crash /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux vmcore 2. 具体分析过程见:Linux内核:分析coredump文件 - 内核代码崩溃 更多Linux内核源码高阶知识请加开发交流Q群篇【318652197】获取,进群免费获取相关资料,免费观看公开课技术分享,入群不亏,快来加入我们吧~ 资源免费领...
1 root root 45705940 Jul 8 19:32 kernel-debug-core-4.18.0-80.7.1.el8.x86_64.rpm -rw-r--r--. 1 root root 455986024 Jul 8 19:36 kernel-debug-debuginfo-4.18.0-80.7.1.el8.x86_64.rpm -rw-r--r--. 1 root root 12922076 Jul 8 19:32 kernel-debug-devel-4.18.0-80.7.1.el8.x8...
1)开启了DEBUG宏 其实开启DEBUG宏的方法很简单,在需要pr_debug/dev_dbg输出的模块开头,直接#define DEBUG即可,kernel中有一个例子: /* init/main.c */ #define DEBUG /* Enable initcall_debug */ 不过这种方法有个缺点:我们必须准确的知道需要debug那个C文件,如果想大网撒鱼(例如,想debug为什么新修改的DTS文...
The kernel has two different debugger front ends (kdb and kgdb) which interface to the debug core. It is possible to use either of the debugger front ends and dynamically transition between them if you configure the kernel properly at compile and runtime. ...
echo "filestm32-adc.c+p;filestm32-adc-core.c+p" > /sys/kernel/debug/dynamic_debug/control A another method is to use a wildcard. The match rule supports * (matches zero or more characters) and ? (matches exactly one character). For example, you can match all USB drivers: ...
1. 执行/usr/bin/crash /usr/lib/debug/lib/modules/2.6.32-220.el6.x86_64/vmlinux vmcore 2. 具体分析过程见:http://blog.csdn.net/guowenyan001/article/details/12975221 参考资料: 深入探索kdump、crash:http://www.ibm.com/developerworks/cn/linux/l-cn-kdump4/index.html?ca=drs ...
#打开svcsock.c文件中所有动态输出语句echo 'file svcsock.c +p' > /sys/kernel/debug/dynamic_debug/control#打开usbcore模块所有动态输出语句echo 'module usbcore +p' > /sys/kernel/debug/dynamic_debug/control#打开svc_process()函数中所有的动态输出语句echo 'func svc_process +p' > /sys/kernel/deb...
Compile-time checks and compiler options —> Compile the kernel with debug info和Compile the kernel with frame pointers KGDB 然后保存退出 开始编译 代码语言:javascript 代码运行次数:0 运行 AI代码解释 make bzImage 成功信息类似这样: 代码语言:javascript ...
Use a second computer to debug the kernel on another Mac. Debug or inspect a kernel core file from a kernel panic. Use the Kernel Debug Kit to set up two-machine debugging and an optional core-dump server. Use two-machine debugging to dynamically examine the state of your kext at runtim...