What happens before your code even runs?

These sources provide a comprehensive overview of the program lifecycle from source code to execution, focusing heavily on the often-invisible stages before a program's main() function is called. The articles explain the role of compilers, which use a frontend to generate an intermediate representation (IR) and a backend to produce optimized machine code, often following a highly common modular design. This machine code is then processed by the linker, which performs symbol resolution to combine object files and libraries into a final executable file, resolving references to functions and variables. Finally, the loader, an essential part of the operating system, is responsible for placing this executable into virtual memory—often involving memory mapping—allocating essential resources like the stack and heap, and executing the program's startup code (like _start or crt0.o) before finally transferring control to main(). vs code format whole file, learn how to code for free, vs code format code, vs code, how to code, vscode, claude code, compile code, how to code in c, this ff7 fact will blow your mind, visual studio code, opencode, localhost coder, vs code tips and tricks, this ff7 fact about cloud will blow your mind, codeeditor, become an animator, coder'scorner, radiator water level goes down, learntocode, coolant level going down but no leaks, speedrun challenge, web development for beginners, minecraft speedrun world record Free Online Image Compressor :- https://30tools.com/image-compressor Compress your images online for free. Reduce the file size of your JPG, PNG, and WebP photos by up to 80% while maintaining excellent visual quality. on https://30tools.com/ Get More tools here....