type FatFile struct {
	Magic  uint32
	Arches []FatArch
	closer io.Closer
}

// A FatArchHeader represents a fat header for a specific image architecture.
type FatArchHeader struct {
	Cpu    Cpu
	SubCpu uint32
	Offset uint32
	Size   uint32
	Align  uint32
}

const fatArchHeaderSize = 5 * 4

// A FatArch is a Mach-O File inside a FatFile.
type FatArch struct {
	FatArchHeader
	*File
}

pkg debug/macho, method (FatArch) Close() error
pkg debug/macho, method (FatArch) DWARF() (*dwarf.Data, error)
pkg debug/macho, method (FatArch) ImportedLibraries() ([]string, error)
pkg debug/macho, method (FatArch) ImportedSymbols() ([]string, error)
pkg debug/macho, method (FatArch) Section(string) *Section
pkg debug/macho, method (FatArch) Segment(string) *Segment
pkg debug/macho, type FatArch struct

		{"(Cpu).String", Method, 0},
		{"(Dylib).Raw", Method, 0},
		{"(Dysymtab).Raw", Method, 0},
		{"(FatArch).Close", Method, 3},
		{"(FatArch).DWARF", Method, 3},
		{"(FatArch).ImportedLibraries", Method, 3},
		{"(FatArch).ImportedSymbols", Method, 3},
		{"(FatArch).Section", Method, 3},
		{"(FatArch).Segment", Method, 3},
		{"(LoadBytes).Raw", Method, 0},
		{"(LoadCmd).GoString", Method, 0},