Alles, was ich mir gewünscht hätte, dass es mir jemand früher gesagt hätte.
Zephyr RTOS has quickly become one of the most important open-source real-time operating systems in the embedded industry. It is used more and more in IoT, wearables, industrial equipment, and non safety-critical automotive applications.
The Linux kernel supplied by a Yocto Project Board Support Package (BSP) is a good starting point for a new project, but kernels used in real-world products rarely remain unchanged. Modifying the Linux kernel is one of the major tasks for an Embedded Systems Engineer working in a Linux development environment. Linux Kernel changes are necessary when adapting an embedded Linux system to custom hardware or project-specific requirements.
The Linux kernel log is one of the most important diagnostic tools in Linux development and system troubleshooting. Understanding the kernel log is therefore essential. Before exploring how the kernel logging mechanism works, it is important to understand its core component, which is the printk() function.