Format
Mach-O
Summary
- Name
- Mach-O
- Version
- 64bit
- Identifiers
- PUID: fmt/693
- Description
- Mach-O is a standard used to store programs and libraries on disk in the Apple Mac app binary interface. Mach-O files generally lack a format extension.
- Source
- Digital Preservation Department / The National Archives
- Developed by
- Apple Computer, Inc.
- Supported by
- Apple Computer, Inc.
Internal signatures
Mach-O 64 bit 1
- Note
- BOF: þíúÏ (0xFEEDFACF)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
FEEDFACF- Endianness
- None
Mach-O 64 bit 2
- Note
- BOF: Ïúíþ (0xCFFAEDFE)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 0
- Byte Sequence
CFFAEDFE- Endianness
- None
Changelog
-
Added in V81
- Release date
- 18 February 2015
Mach-O 64bit: New signature. Inspired by research conducted by Ange Albertini.
Mach-O 64bit: Full entry added.