This post explains how to create a userspace C program as a Buildroot package that tests an existing kernel module. It details steps including creating package directories and files, defining dependencies, and populating configuration files. The process includes setting installation commands and proper source code structure for successful compilation and deployment.
∞C++26 in GCC 16 zero-fills your local variables: time to recompile your C++ programs
C++ programmers should note that while global variables are zero-initialized by default, local variables are not, which can lead to errors if they remain uninitialized. Recent C++26 enhancements ensure local variables are zero-filled, a behavior not present in C++23. This difference is evident in assembly code comparisons across optimization levels.