Executable Formats
Executable formats are standardized file structures that define how machine code, data, and metadata are organized for execution by an operating system or runtime environment. They specify the layout of code sections, data segments, headers, and linking information, enabling the system to load and run programs correctly. Common examples include ELF (Executable and Linkable Format) on Linux/Unix, PE (Portable Executable) on Windows, and Mach-O on macOS.
Developers should understand executable formats when working on low-level systems programming, cross-platform development, or security analysis, as it helps in debugging, optimizing performance, and ensuring compatibility. Knowledge is crucial for tasks like creating loaders, analyzing malware, or developing compilers and linkers that generate correct binaries for target platforms.