формат исполняемых файлов и файлов Linking Format (ELF)  (format of Executable and Linking Format (ELF) files)
  
Примечание (Note)
ELF first appeared in System V.  The ELF format is an adopted
       standard.
       The extensions for e_phnum, e_shnum, and e_shstrndx respectively
       are Linux extensions.  Sun, BSD, and AMD64 also support them; for
       further information, look under SEE ALSO.