ocr: (Ofset macro used) Header (type structexec) Text segment N_TXTOFF(header) Data segment N_DATOFF(neader) Text relocation intormation (type siructrelocation info) N_TRELOFFlheader) Data-relocation-intormation N DRELOFF(header) Symbol table (type struct nlist) N - SYMOFF(header) String table (nunn strx field from symbol N_STROFF(header) table points to: - offsets here) Figure a.out object-file format.