Understanding Linux Executable Loading: A Deep Dive into Kernel Internals
摘要
When you type ./myprogram and press Enter, a complex dance begins between your shell, the kernel, and the dynamic linker. In milliseconds, the kernel must validate your program, map it into memory, set up a new process, and hand control to your code. This seemingly simple action involves multiple subsystems, security checks, and clever optimizations that have evolved over decades. Let's pull back the curtain and see exactly how Linux breathes life into your programs.