ECOFF

ECOFF
Filename extension	`none, .o, .so`
Developed by	MIPS
Type of format	Binary, executable, object, shared libraries
Extended from	COFF

The Extended Common Object File Format (ECOFF) is a file format for executables, object code, and shared libraries.

ECOFF was developed for the MIPS platform, and was used by DEC Ultrix and Tru64 (previously Digital Unix and OSF/1), SGI Irix, and Linux/MIPS.