// A LoadCmd is a Mach-O load command.
type LoadCmd uint32

const (
	LoadCmdSegment    LoadCmd = 0x1
	LoadCmdSymtab     LoadCmd = 0x2
	LoadCmdThread     LoadCmd = 0x4
	LoadCmdUnixThread LoadCmd = 0x5 // thread+stack
	LoadCmdDysymtab   LoadCmd = 0xb
	LoadCmdDylib      LoadCmd = 0xc // load dylib command
	LoadCmdDylinker   LoadCmd = 0xf // id dylinker command (not load dylinker command)

package ld

import (
	"bytes"
	"compress/zlib"
	"debug/macho"
	"encoding/binary"
	"fmt"
	"io"
	"os"
	"reflect"
	"unsafe"
)

type loadCmd struct {
	Cmd macho.LoadCmd
	Len uint32
}

type dyldInfoCmd struct {
	Cmd                      macho.LoadCmd
	Len                      uint32
	RebaseOff, RebaseLen     uint32
	BindOff, BindLen         uint32
	WeakBindOff, WeakBindLen uint32

type LoadBytes []byte

func (b LoadBytes) Raw() []byte { return b }

// A SegmentHeader is the header for a Mach-O 32-bit or 64-bit load segment command.
type SegmentHeader struct {
	Cmd     LoadCmd
	Len     uint32
	Name    string
	Addr    uint64
	Memsz   uint64
	Offset  uint64
	Filesz  uint64
	Maxprot uint32
	Prot    uint32
	Nsect   uint32
	Flag    uint32
}

pkg debug/macho, const GENERIC_RELOC_VANILLA = 0
pkg debug/macho, const GENERIC_RELOC_VANILLA RelocTypeGeneric
pkg debug/macho, const LoadCmdRpath = 2147483676
pkg debug/macho, const LoadCmdRpath LoadCmd
pkg debug/macho, const X86_64_RELOC_BRANCH = 2
pkg debug/macho, const X86_64_RELOC_BRANCH RelocTypeX86_64
pkg debug/macho, const X86_64_RELOC_GOT = 4
pkg debug/macho, const X86_64_RELOC_GOT RelocTypeX86_64

pkg debug/macho, const LoadCmdDylib LoadCmd
pkg debug/macho, const LoadCmdDylinker LoadCmd
pkg debug/macho, const LoadCmdDysymtab LoadCmd
pkg debug/macho, const LoadCmdSegment LoadCmd
pkg debug/macho, const LoadCmdSegment64 LoadCmd
pkg debug/macho, const LoadCmdSymtab LoadCmd
pkg debug/macho, const LoadCmdThread LoadCmd
pkg debug/macho, const LoadCmdUnixThread LoadCmd
pkg debug/macho, const Magic32 uint32

		{"(FatArch).ImportedSymbols", Method, 3},
		{"(FatArch).Section", Method, 3},
		{"(FatArch).Segment", Method, 3},
		{"(LoadBytes).Raw", Method, 0},
		{"(LoadCmd).GoString", Method, 0},
		{"(LoadCmd).String", Method, 0},
		{"(RelocTypeARM).GoString", Method, 10},
		{"(RelocTypeARM).String", Method, 10},
		{"(RelocTypeARM64).GoString", Method, 10},
		{"(RelocTypeARM64).String", Method, 10},