Playground project to learn more about the Mach-O file format.

swift run macho-reader <path-to-binary>

You should see a similar output:

1. Parsing Mach-O Files
2. llios
3. Hello, Mach-O
4. Swift metadata
5. Machismo
6. Mach-O Executable

Mach-O implementation details can be in Xcode's folder. In my case this is the path:

/Applications/Xcode-System.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk

These are some useful relative paths:

1. /usr/include/mach-o/loader.h
2. /usr/include/mach/vm_prot.h