Common Object File Format (COFF) is a standardized format that specifies the layout and organization of executable and object files in computer programming. It is used to facilitate the compilation, linking, and execution of software programs across different computer systems and architectures.
COFF was originally developed by UNIX System Laboratories as a replacement for the older a.out format. It has since evolved into a widely adopted format for executable files and libraries in various operating systems, including Unix, Linux, and Windows.
The COFF format defines a consistent structure for storing various sections of code, data, and symbols in a binary file. It includes a header that provides essential information about the file, such as its architecture, size, and entry point. It also supports multiple sections, such as text (executable instructions), data (initialized variables), and bss (uninitialized variables), allowing for efficient memory allocation and management.
Additionally, COFF supports the storage of debug information, which aids in program debugging and optimization. It provides a mechanism for storing symbols, source code line numbers, and other debugging-related data, facilitating the identification and resolution of software bugs.
The adoption of COFF as a widely supported file format enables software developers to create portable executables that can be executed on various hardware platforms and operating systems with minimal modifications. This standardized format plays a crucial role in ensuring compatibility and interoperability of software across different environments.
