mach-o
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The Anatomy of a Mach-O: Structure, Code Signing, and PAC
The Mach Object (Mach-O) is the binary format used on Apple’s operating systems for executables, libraries, and object code.
Offensive Security, Open Source, and Glitter

The Mach Object (Mach-O) is the binary format used on Apple’s operating systems for executables, libraries, and object code.