linux kernel debugging tutorial

(ext3) debugging supportThe above three items must be selected, and must be built in (that is, the mark *). this is very important. Check after configuration. does the config file contain "config_ext3_fs = y. if it is not "config_ext3_fs = y" but "config_ext3_fs = m", you will encounter the following error when running the kernel: Too troot: effect_root (/sysroot,/sysroot/initrd) failed * NIC DriverMake su

Linux Kernel development-Process Control and Linux kernel development process This chapter mainly analyzes the definition, status, data structure, and other concepts of processes from the perspective of code. Process Definition A process is a running program and a dynamic executable entity. A program is a collection o

QEMU+GDB Debugging kernel (version>4.8) When debugging the "Linux kernel" (Version > 4.8) with Qemu and gdb, something wrong occurs: Picture as follows: Why? The kernel (version >4.8) feature KASLR has been. What is KASLR?Pleas

-proposed Universe main Multiverse restricted Deb-src http://mirrors.163.com/ubuntu/lucid-proposed Universe main Multiverse restricted Deb/http Mirrors.163.com/ubuntu/lucid-backports Universe main Multiverse restricted Deb-src http://mirrors.163.com/ Ubuntu/lucid-backports Universe main Multiverse restricted Deb-src http://mirrors.163.com/ubuntu/ Lucid-updates Universe main Multiverse restricted 5) What problems have you actually encountered during the compilation process, an

error. Debugging system faults even if you use all the monitoring and debugging technologies, sometimes there are still errors in the driver.Such execution of the driver may cause system faults. When this happens, it is vital to obtain enough information to solve the problem. Note that "fault" does not mean "panic ". Linux code non-It is often robust and can res

Upgrade Ubuntu 10.04 with 2.6.32 kernel to 3.0 kernel graphic tutorial, 10.042.6.32 1. Complete the following practical work and screenshot the practice steps: 1) download and install the Virtual Machine VMWare Workstation; 2) install Linux2.x on the virtual machine; 3) Compile the Linux 2. upgrade x

Upgrade Ubuntu10.04 with 2.6.32 kernel to 3.0 kernel graphic tutorial 1. Complete the following practical work and screenshot the practice steps: 1) download and install the Virtual Machine VMWare Workstation; 2) install Linux2.x on the virtual machine; 3) Compile the Linux 2. upgrade x

INITRD storage device driver is a good solution to this problem.In the boot order, INITRD will be loaded after the Vmlinuz code execution, using the INITRD mechanism can be a good solution to different hardware environments, is the Linux distribution, USB device to start the necessary. In the embedded system, when the hardware is relatively fixed, the INITRD function is not as large as that of the PC, but it is the function of simplifying the

Experimental process:Open the shell terminal and execute the following command:CD linuxkernel/Qemu-kernel LINUX-3.18.6/ARCH/X86/BOOT/BZIMAGE-INITRD rootfs.imgAfter execution, the Qemu window will pop up, output the Linux kernel boot information and display menuos after successful startup.Enter help to indicate that the

Cool! Use sourcesight for kernel source code debugging Hedgehog @ http://blog.csdn.net/littlehedgehog When I accidentally saw such a good thing, I did not dare to enjoy it exclusively. I adjusted the text slightly. I also told me the problem, so that I would not try again later. Original post: Http://www.oldlinux.org/oldlinux/viewthread.php? Tid = 11074 extra = Page % 3d1 The or

Fan + Original works reproduced please specify the source + "Linux kernel analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000First, the experimental process1. Delete the original menu, and clone the new menu, with TEST_FORK.C overlay test.c2. Make rootfs after the new kernel boot, test fork function3. Use the-s-s frozen core to prepare for comm

Article Title: Use kgdb to debug Linux kernel and kernel modules. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded sys

] @GLIBC_2.00804a014 A _edata0804a01c A _end080484BC T _fini080484d8 R _FP_HW080482BC T _init08048330 T _start0804a014 b completed.69900804a00c W Data_start0804a018 b dtor_idx.6992080483C0 T Frame_dummy080483e4 T MainU [email protected] @GLIBC_2.03.4 LDDUse the LDD command to view the shared link library dependencies of a binary program, including the name of the library, the start address, to determine whether the segment error occurred in your own program or in a shared library that depends on

that is passed from the user space. It is important to emphasize again that in the kernel module or driver writing, we strongly recommend that you use the interface provided by the kernel to generate and manipulate the IOCTL command number, which gives the command number a specific meaning, makes our program more robust, and, on the other hand, improves the portability of the program.Finally, we introduce

emphasize again that in the kernel module or driver writing, we strongly recommend that you use the interface provided by the kernel to generate and manipulate the IOCTL command number, which gives the command number a specific meaning, makes our program more robust, and, on the other hand, improves the portability of the program.Finally, we introduce the compilation and

. What the modules can do is limited-for example, they can't add or subtract fields from public data structures such as process descriptors (LCTT: It can disrupt the entire kernel and the system's functionality). However, in other ways, they are mature kernel-level code that can be compiled into the kernel at any time when needed (so that all restrictions can be

. Advantages and disadvantages of this method: integration to kernel 1. directly compile with the kernel. The process is relatively simple and can be configured through Linux menuconfig. 2. no initialization script is required. 3. for a relatively stable developed device driver, you can compile it into a kernel file wi

Chen Chaojan Original works reproduced please specify the source"Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000Experimental stepsLanding Lab Building Virtual machine http://www.shiyanlou.com/courses/195Open the shell terminal and execute the following command:CD linuxkernel/Qemu-kernel LIN