Debugging using Proc file system | Linux kernel internals | Linux device driver The Linux kernel is the core component of the Linux operating system and is responsible for managing system resources, including hardware devices, memory, and processes. It provides a range of services, including process management, memory management, file system management, and network management. The kernel is designed to be modular, allowing drivers, file systems, and other components to be loaded dynamically at runtime. This modular design makes it possible to add or remove features from the kernel without having to recompile the entire operating system. To interact with the kernel, applications can use system calls, which are functions provided by the kernel that allow user-space processes to perform privileged operations, such as creating new processes, allocating memory, and accessing hardware devices. The Proc file system is a virtual file system in Linux that provides information about running processes and system resources in real-time. It can also be used for debugging purposes by allowing access to various kernel data structures and system information. To use the Proc file system for debugging, you can navigate to the /proc directory and examine the files and directories within it. For example, the /proc/PID/status file contains information about a specific process, including its status and memory usage. You can also use the /proc/PID/maps file to examine the memory mappings of a process or the /proc/net directory to view network statistics and connections. In addition to the Proc file system, Linux provides other tools for debugging, such as GDB (GNU Debugger) and strace, which can be used for tracing system calls and examining program execution. Overall, the Proc file system is a useful tool for debugging Linux systems and gaining insights into system resources and processes. Developers can also extend the kernel by writing kernel modules, which are pieces of code that can be dynamically loaded into the kernel at runtime to add new features, such as device drivers or file systems. Understanding the Linux kernel internals is essential for developing low-level system software, such as device drivers, and for optimizing system performance. ----------------------------------------------------------------------------------------------------------------------------------------------- Linux kernel foundation course Full Stack Linux Kernel & Device Driver Programming Course Its a complete guided course of ~140+ hrs. combination of following modules. Life time LMS access Get full LMS access instantly after enrolling, 125+ hrs of recorded lectures – System programming, Linux Kernel Internals, Linux Device Drivers and Linux Debudding techniques. Real Time Projects Work with real time projects through out the course. Expert resources and useful tools to help make your project a success, from ideation to enterprise adoption. Interview preparation 1-on-1 on demand mock interview sessions will be taken by experts having experience of cracking SDE interviews of tie one company like Samsung, Qualcomm, Intel & Cisco etc. Contribute to open source Contributing to open source can be a rewarding way to learn, teach, and build experience in just about any skill you can imagine. --------------------------------------------------------------------------------------------------------------------------------------- Linux System Programming ~30 hrs. training This module will teach you the necessary theory and applications to properly understand the advanced algorithms and concepts of C and Linux system. Linux Kernel Internals ~30 hrs. training In this module we will cover Linux Kernel Internals. To have sufficient understanding of Linux Operating System or any other Operating System, for that matter, and what makes them functional at core. Linux Device Driver ~30 hrs. training This module teaches you how to develop device drivers in the Linux for projects on embedded platforms -raspberry pi 4, Beaglebone black, or on the traditional PC platform. through theory and practical Linux Socket Programming ~30 hrs. training In this module, you will learn Linux Socket Programming which provides quite a complete discussion presented in graphically manner with working programs from the very basic networking up to the packet level. Network Device Drivers ~30 hrs. training This module will teach you how to write Linux device driver for PCI device, GPIO (General Purpose IO), USB and pseudo Network device with PING (ICMP protocol) functionality. Contact : info@linuxkernelfoundation.com --------------------------------------------------------------------------------------------------------------------------------------- Like share subscribe our channel for more such content.