macho

package
v0.0.32 Latest Latest
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 Go to latest Published: May 13, 2021 License: BSD-3-Clause Imports: 10 Imported by: 0

Documentation

Overview

Package macho implements access to Mach-O object files.

Index

Constants

View Source 
const (
	Magic32  uint32 = 0xfeedface
	Magic64  uint32 = 0xfeedfacf
	MagicFat uint32 = 0xcafebabe
)

Variables

This section is empty.

Functions

func RoundUp 

func RoundUp(x, align uint64) uint64

Types

type Cpu 

type Cpu uint32

A Cpu is a Mach-O cpu type. 

const (
	Cpu386   Cpu = 7
	CpuAmd64 Cpu = Cpu386 | cpuArch64
	CpuArm   Cpu = 12
	CpuArm64 Cpu = CpuArm | cpuArch64
	CpuPpc   Cpu = 18
	CpuPpc64 Cpu = CpuPpc | cpuArch64
)

func (Cpu) GoString 

func (i Cpu) GoString() string

func (Cpu) String 

func (i Cpu) String() string

type DyldInfo 

type DyldInfo struct {
	DyldInfoCmd
}

func (*DyldInfo) Copy 

func (s *DyldInfo) Copy() *DyldInfo

func (*DyldInfo) LoadSize 

func (s *DyldInfo) LoadSize(t *FileTOC) uint32

func (*DyldInfo) String 

func (s *DyldInfo) String() string

type DyldInfoCmd 

type DyldInfoCmd struct {
	LoadCmd
	Len                      uint32
	RebaseOff, RebaseLen     uint32 // file offset and length; data contains segment indices
	BindOff, BindLen         uint32 // file offset and length; data contains segment indices
	WeakBindOff, WeakBindLen uint32 // file offset and length
	LazyBindOff, LazyBindLen uint32 // file offset and length
	ExportOff, ExportLen     uint32 // file offset and length
}

LC_DYLD_INFO, LC_DYLD_INFO_ONLY

type Dylib 

type Dylib struct {
	DylibCmd
	Name           string
	Time           uint32
	CurrentVersion uint32
	CompatVersion  uint32
}

A Dylib represents a Mach-O load dynamic library command.

func (*Dylib) Copy 

func (s *Dylib) Copy() *Dylib

func (*Dylib) LoadSize 

func (s *Dylib) LoadSize(t *FileTOC) uint32

func (*Dylib) String 

func (s *Dylib) String() string

type DylibCmd 

type DylibCmd struct {
	LoadCmd
	Len            uint32
	Name           uint32
	Time           uint32
	CurrentVersion uint32
	CompatVersion  uint32
}

A DylibCmd is a Mach-O load dynamic library command.

type Dylinker 

type Dylinker struct {
	DylinkerCmd // shared by 3 commands, need the LoadCmd
	Name        string
}

func (*Dylinker) Copy 

func (s *Dylinker) Copy() *Dylinker

func (*Dylinker) LoadSize 

func (s *Dylinker) LoadSize(t *FileTOC) uint32

func (*Dylinker) String 

func (s *Dylinker) String() string

type DylinkerCmd 

type DylinkerCmd struct {
	LoadCmd
	Len  uint32
	Name uint32
}

A DylinkerCmd is a Mach-O load dynamic linker or environment command.

type Dysymtab 

type Dysymtab struct {
	DysymtabCmd
	IndirectSyms []uint32 // indices into Symtab.Syms
}

A Dysymtab represents a Mach-O dynamic symbol table command.

func (*Dysymtab) Copy 

func (s *Dysymtab) Copy() *Dysymtab

func (*Dysymtab) LoadSize 

func (s *Dysymtab) LoadSize(t *FileTOC) uint32

func (*Dysymtab) String 

func (s *Dysymtab) String() string

type DysymtabCmd 

type DysymtabCmd struct {
	LoadCmd
	Len            uint32
	Ilocalsym      uint32
	Nlocalsym      uint32
	Iextdefsym     uint32
	Nextdefsym     uint32
	Iundefsym      uint32
	Nundefsym      uint32
	Tocoffset      uint32
	Ntoc           uint32
	Modtaboff      uint32
	Nmodtab        uint32
	Extrefsymoff   uint32
	Nextrefsyms    uint32
	Indirectsymoff uint32
	Nindirectsyms  uint32
	Extreloff      uint32
	Nextrel        uint32
	Locreloff      uint32
	Nlocrel        uint32
}

A DysymtabCmd is a Mach-O dynamic symbol table command.

type EncryptionInfo 

type EncryptionInfo struct {
	EncryptionInfoCmd
}

func (*EncryptionInfo) Copy 

func (s *EncryptionInfo) Copy() *EncryptionInfo

func (*EncryptionInfo) LoadSize 

func (s *EncryptionInfo) LoadSize(t *FileTOC) uint32

func (*EncryptionInfo) String 

func (s *EncryptionInfo) String() string

type EncryptionInfoCmd 

type EncryptionInfoCmd struct {
	LoadCmd
	Len                uint32
	CryptOff, CryptLen uint32 // file offset and length
	CryptId            uint32
}

LC_ENCRYPTION_INFO, LC_ENCRYPTION_INFO_64

type EntryPointCmd 

type EntryPointCmd struct {
	LoadCmd
	Len       uint32
	EntryOff  uint64 // file offset
	StackSize uint64 // if not zero, initial stack size
}

type FatArch 

type FatArch struct {
	FatArchHeader
	*File
}

A FatArch is a Mach-O File inside a FatFile.

type FatArchHeader 

type FatArchHeader struct {
	Cpu    Cpu
	SubCpu uint32
	Offset uint32
	Size   uint32
	Align  uint32
}

A FatArchHeader represents a fat header for a specific image architecture.

type FatFile 

type FatFile struct {
	Magic  uint32
	Arches []FatArch
	// contains filtered or unexported fields
}

A FatFile is a Mach-O universal binary that contains at least one architecture.

func NewFatFile 

func NewFatFile(r io.ReaderAt) (*FatFile, error)

NewFatFile creates a new FatFile for accessing all the Mach-O images in a universal binary. The Mach-O binary is expected to start at position 0 in the ReaderAt.

func OpenFat 

func OpenFat(name string) (*FatFile, error)

OpenFat opens the named file using os.Open and prepares it for use as a Mach-O universal binary.

func (*FatFile) Close 

func (ff *FatFile) Close() error

type File 

type File struct {
	FileTOC

	Symtab   *Symtab
	Dysymtab *Dysymtab
	// contains filtered or unexported fields
}

A File represents an open Mach-O file.

func NewFile 

func NewFile(r io.ReaderAt) (*File, error)

NewFile creates a new File for accessing a Mach-O binary in an underlying reader. The Mach-O binary is expected to start at position 0 in the ReaderAt.

func Open 

func Open(name string) (*File, error)

Open opens the named file using os.Open and prepares it for use as a Mach-O binary.

func (*File) Close 

func (f *File) Close() error

Close closes the File. If the File was created using NewFile directly instead of Open, Close has no effect.

func (*File) DWARF 

func (f *File) DWARF() (*dwarf.Data, error)

DWARF returns the DWARF debug information for the Mach-O file.

func (*File) ImportedLibraries 

func (f *File) ImportedLibraries() ([]string, error)

ImportedLibraries returns the paths of all libraries referred to by the binary f that are expected to be linked with the binary at dynamic link time.

func (*File) ImportedSymbols 

func (f *File) ImportedSymbols() ([]string, error)

ImportedSymbols returns the names of all symbols referred to by the binary f that are expected to be satisfied by other libraries at dynamic load time.

func (*File) Section 

func (f *File) Section(name string) *Section

Section returns the first section with the given name, or nil if no such section exists.

func (*File) Segment 

func (f *File) Segment(name string) *Segment

Segment returns the first Segment with the given name, or nil if no such segment exists.

type FileHeader 

type FileHeader struct {
	Magic        uint32
	Cpu          Cpu
	SubCpu       uint32
	Type         HdrType
	NCommands    uint32 // number of load commands
	SizeCommands uint32 // size of all the load commands, not including this header.
	Flags        HdrFlags
}

A FileHeader represents a Mach-O file header.

func (*FileHeader) Put 

func (h *FileHeader) Put(b []byte, o binary.ByteOrder) int

type FileTOC 

type FileTOC struct {
	FileHeader
	ByteOrder binary.ByteOrder
	Loads     []Load
	Sections  []*Section
}

func (*FileTOC) AddLoad 

func (t *FileTOC) AddLoad(l Load)

func (*FileTOC) AddSection 

func (t *FileTOC) AddSection(s *Section)

Adds section to the most recently added Segment

func (*FileTOC) AddSegment 

func (t *FileTOC) AddSegment(s *Segment)

AddSegment adds segment s to the file table of contents, and also zeroes out the segment information with the expectation that this will be added next.

func (*FileTOC) DerivedCopy 

func (t *FileTOC) DerivedCopy(Type HdrType, Flags HdrFlags) *FileTOC

DerivedCopy returns a modified copy of the TOC, with empty loads and sections, and with the specified header type and flags.

func (*FileTOC) FileSize 

func (t *FileTOC) FileSize() uint64

FileSize returns the size in bytes of the header, load commands, and the in-file contents of all the segments and sections included in those load commands, accounting for their offsets within the file.

func (*FileTOC) HdrSize 

func (t *FileTOC) HdrSize() uint32

HdrSize returns the size in bytes of the Macho header for a given magic number (where the magic number has been appropriately byte-swapped).

func (*FileTOC) LoadAlign 

func (t *FileTOC) LoadAlign() uint64

LoadAlign returns the required alignment of Load commands in a binary. This is used to add padding for necessary alignment.

func (*FileTOC) LoadSize 

func (t *FileTOC) LoadSize() uint32

LoadSize returns the size of all the load commands in a file's table-of contents (but not their associated data, e.g., sections and symbol tables)

func (*FileTOC) Put 

func (t *FileTOC) Put(buffer []byte) int

Put writes the header and all load commands to buffer, using the byte ordering specified in FileTOC t. For sections, this writes the headers that come in-line with the segment Load commands, but does not write the reference data for those sections.

func (*FileTOC) SymbolSize 

func (t *FileTOC) SymbolSize() uint32

SymbolSize returns the size in bytes of a Symbol (Nlist32 or Nlist64)

func (*FileTOC) TOCSize 

func (t *FileTOC) TOCSize() uint32

TOCSize returns the size in bytes of the object file representation of the header and Load Commands (including Segments and Sections, but not their contents) at the beginning of a Mach-O file. This typically overlaps the text segment in the object file.

type FormatError 

type FormatError struct {
	// contains filtered or unexported fields
}

FormatError is returned by some operations if the data does not have the correct format for an object file.

func (*FormatError) Error 

func (e *FormatError) Error() string

func (*FormatError) String 

func (e *FormatError) String() string

type HdrFlags 

type HdrFlags uint32
const (
	FlagNoUndefs              HdrFlags = 0x1
	FlagIncrLink              HdrFlags = 0x2
	FlagDyldLink              HdrFlags = 0x4
	FlagBindAtLoad            HdrFlags = 0x8
	FlagPrebound              HdrFlags = 0x10
	FlagSplitSegs             HdrFlags = 0x20
	FlagLazyInit              HdrFlags = 0x40
	FlagTwoLevel              HdrFlags = 0x80
	FlagForceFlat             HdrFlags = 0x100
	FlagNoMultiDefs           HdrFlags = 0x200
	FlagNoFixPrebinding       HdrFlags = 0x400
	FlagPrebindable           HdrFlags = 0x800
	FlagAllModsBound          HdrFlags = 0x1000
	FlagSubsectionsViaSymbols HdrFlags = 0x2000
	FlagCanonical             HdrFlags = 0x4000
	FlagWeakDefines           HdrFlags = 0x8000
	FlagBindsToWeak           HdrFlags = 0x10000
	FlagAllowStackExecution   HdrFlags = 0x20000
	FlagRootSafe              HdrFlags = 0x40000
	FlagSetuidSafe            HdrFlags = 0x80000
	FlagNoReexportedDylibs    HdrFlags = 0x100000
	FlagPIE                   HdrFlags = 0x200000
	FlagDeadStrippableDylib   HdrFlags = 0x400000
	FlagHasTLVDescriptors     HdrFlags = 0x800000
	FlagNoHeapExecution       HdrFlags = 0x1000000
	FlagAppExtensionSafe      HdrFlags = 0x2000000
)

type HdrType 

type HdrType uint32

A HdrType is the Mach-O file type, e.g. an object file, executable, or dynamic library. 

const (
	MhObject  HdrType = 1
	MhExecute HdrType = 2
	MhCore    HdrType = 4
	MhDylib   HdrType = 6
	MhBundle  HdrType = 8
	MhDsym    HdrType = 0xa
)

func (HdrType) GoString 

func (t HdrType) GoString() string

func (HdrType) String 

func (t HdrType) String() string

type LinkEditData 

type LinkEditData struct {
	LinkEditDataCmd
}

func (*LinkEditData) Copy 

func (s *LinkEditData) Copy() *LinkEditData

func (*LinkEditData) LoadSize 

func (s *LinkEditData) LoadSize(t *FileTOC) uint32

func (*LinkEditData) String 

func (s *LinkEditData) String() string

type LinkEditDataCmd 

type LinkEditDataCmd struct {
	LoadCmd
	Len              uint32
	DataOff, DataLen uint32 // file offset and length
}

LC_CODE_SIGNATURE, LC_SEGMENT_SPLIT_INFO, LC_FUNCTION_STARTS, LC_DATA_IN_CODE, LC_DYLIB_CODE_SIGN_DRS

type Load 

type Load interface {
	String() string
	Command() LoadCmd
	LoadSize(*FileTOC) uint32 // Need the TOC for alignment, sigh.
	Put([]byte, binary.ByteOrder) int
}

A Load represents any Mach-O load command.

type LoadBytes 

type LoadBytes []byte

LoadBytes is the uninterpreted bytes of a Mach-O load command.

func (LoadBytes) Copy 

func (b LoadBytes) Copy() LoadBytes

func (LoadBytes) LoadSize 

func (b LoadBytes) LoadSize(t *FileTOC) uint32

func (LoadBytes) Raw 

func (b LoadBytes) Raw() []byte

func (LoadBytes) String 

func (b LoadBytes) String() string

type LoadCmd 

type LoadCmd uint32

A LoadCmd is a Mach-O load command. 

const (
	// Note 3 and 8 are obsolete
	LcSegment            LoadCmd = 0x1
	LcSymtab             LoadCmd = 0x2
	LcThread             LoadCmd = 0x4
	LcUnixthread         LoadCmd = 0x5 // thread+stack
	LcDysymtab           LoadCmd = 0xb
	LcDylib              LoadCmd = 0xc // load dylib command
	LcIdDylib            LoadCmd = 0xd // dynamically linked shared lib ident
	LcLoadDylinker       LoadCmd = 0xe // load a dynamic linker
	LcIdDylinker         LoadCmd = 0xf // id dylinker command (not load dylinker command)
	LcSegment64          LoadCmd = 0x19
	LcUuid               LoadCmd = 0x1b
	LcCodeSignature      LoadCmd = 0x1d
	LcSegmentSplitInfo   LoadCmd = 0x1e
	LcRpath              LoadCmd = 0x8000001c
	LcEncryptionInfo     LoadCmd = 0x21
	LcDyldInfo           LoadCmd = 0x22
	LcDyldInfoOnly       LoadCmd = 0x80000022
	LcVersionMinMacosx   LoadCmd = 0x24
	LcVersionMinIphoneos LoadCmd = 0x25
	LcFunctionStarts     LoadCmd = 0x26
	LcDyldEnvironment    LoadCmd = 0x27
	LcMain               LoadCmd = 0x80000028 // replacement for UnixThread
	LcDataInCode         LoadCmd = 0x29       // There are non-instructions in text
	LcSourceVersion      LoadCmd = 0x2a       // Source version used to build binary
	LcDylibCodeSignDrs   LoadCmd = 0x2b
	LcEncryptionInfo64   LoadCmd = 0x2c
	LcVersionMinTvos     LoadCmd = 0x2f
	LcVersionMinWatchos  LoadCmd = 0x30
)

func (LoadCmd) Command 

func (c LoadCmd) Command() LoadCmd

func (LoadCmd) GoString 

func (i LoadCmd) GoString() string

func (LoadCmd) Put 

func (lc LoadCmd) Put(b []byte, o binary.ByteOrder) int

func (LoadCmd) String 

func (i LoadCmd) String() string

type LoadCmdBytes 

type LoadCmdBytes struct {
	LoadCmd
	LoadBytes
}

LoadCmdBytes is a command-tagged sequence of bytes. This is used for Load Commands that are not (yet) interesting to us, and to common up this behavior for all those that are.

func (LoadCmdBytes) Copy 

func (s LoadCmdBytes) Copy() LoadCmdBytes

func (LoadCmdBytes) String 

func (s LoadCmdBytes) String() string

type Nlist32 

type Nlist32 struct {
	Name  uint32
	Type  uint8
	Sect  uint8
	Desc  uint16
	Value uint32
}

An Nlist32 is a Mach-O 32-bit symbol table entry.

type Nlist64 

type Nlist64 struct {
	Name  uint32
	Type  uint8
	Sect  uint8
	Desc  uint16
	Value uint64
}

An Nlist64 is a Mach-O 64-bit symbol table entry.

func (*Nlist64) Put32 

func (n *Nlist64) Put32(b []byte, o binary.ByteOrder) uint32

func (*Nlist64) Put64 

func (n *Nlist64) Put64(b []byte, o binary.ByteOrder) uint32

type NoteCmd 

type NoteCmd struct {
	LoadCmd
	Len            uint32
	Name           [16]byte
	Offset, Filesz uint64 // file offset and length
}

type Regs386 

type Regs386 struct {
	AX    uint32
	BX    uint32
	CX    uint32
	DX    uint32
	DI    uint32
	SI    uint32
	BP    uint32
	SP    uint32
	SS    uint32
	FLAGS uint32
	IP    uint32
	CS    uint32
	DS    uint32
	ES    uint32
	FS    uint32
	GS    uint32
}

Regs386 is the Mach-O 386 register structure.

type RegsAMD64 

type RegsAMD64 struct {
	AX    uint64
	BX    uint64
	CX    uint64
	DX    uint64
	DI    uint64
	SI    uint64
	BP    uint64
	SP    uint64
	R8    uint64
	R9    uint64
	R10   uint64
	R11   uint64
	R12   uint64
	R13   uint64
	R14   uint64
	R15   uint64
	IP    uint64
	FLAGS uint64
	CS    uint64
	FS    uint64
	GS    uint64
}

RegsAMD64 is the Mach-O AMD64 register structure.

type Reloc 

type Reloc struct {
	Addr  uint32
	Value uint32
	// when Scattered == false && Extern == true, Value is the symbol number.
	// when Scattered == false && Extern == false, Value is the section number.
	// when Scattered == true, Value is the value that this reloc refers to.
	Type      uint8
	Len       uint8 // 0=byte, 1=word, 2=long, 3=quad
	Pcrel     bool
	Extern    bool // valid if Scattered == false
	Scattered bool
}

A Reloc represents a Mach-O relocation.

type RelocTypeARM 

type RelocTypeARM int
const (
	ARM_RELOC_VANILLA        RelocTypeARM = 0
	ARM_RELOC_PAIR           RelocTypeARM = 1
	ARM_RELOC_SECTDIFF       RelocTypeARM = 2
	ARM_RELOC_LOCAL_SECTDIFF RelocTypeARM = 3
	ARM_RELOC_PB_LA_PTR      RelocTypeARM = 4
	ARM_RELOC_BR24           RelocTypeARM = 5
	ARM_THUMB_RELOC_BR22     RelocTypeARM = 6
	ARM_THUMB_32BIT_BRANCH   RelocTypeARM = 7
	ARM_RELOC_HALF           RelocTypeARM = 8
	ARM_RELOC_HALF_SECTDIFF  RelocTypeARM = 9
)

func (RelocTypeARM) GoString 

func (r RelocTypeARM) GoString() string

func (RelocTypeARM) String 

func (i RelocTypeARM) String() string

type RelocTypeARM64 

type RelocTypeARM64 int
const (
	ARM64_RELOC_UNSIGNED            RelocTypeARM64 = 0
	ARM64_RELOC_SUBTRACTOR          RelocTypeARM64 = 1
	ARM64_RELOC_BRANCH26            RelocTypeARM64 = 2
	ARM64_RELOC_PAGE21              RelocTypeARM64 = 3
	ARM64_RELOC_PAGEOFF12           RelocTypeARM64 = 4
	ARM64_RELOC_GOT_LOAD_PAGE21     RelocTypeARM64 = 5
	ARM64_RELOC_GOT_LOAD_PAGEOFF12  RelocTypeARM64 = 6
	ARM64_RELOC_POINTER_TO_GOT      RelocTypeARM64 = 7
	ARM64_RELOC_TLVP_LOAD_PAGE21    RelocTypeARM64 = 8
	ARM64_RELOC_TLVP_LOAD_PAGEOFF12 RelocTypeARM64 = 9
	ARM64_RELOC_ADDEND              RelocTypeARM64 = 10
)

func (RelocTypeARM64) GoString 

func (r RelocTypeARM64) GoString() string

func (RelocTypeARM64) String 

func (i RelocTypeARM64) String() string

type RelocTypeGeneric 

type RelocTypeGeneric int
const (
	GENERIC_RELOC_VANILLA        RelocTypeGeneric = 0
	GENERIC_RELOC_PAIR           RelocTypeGeneric = 1
	GENERIC_RELOC_SECTDIFF       RelocTypeGeneric = 2
	GENERIC_RELOC_PB_LA_PTR      RelocTypeGeneric = 3
	GENERIC_RELOC_LOCAL_SECTDIFF RelocTypeGeneric = 4
	GENERIC_RELOC_TLV            RelocTypeGeneric = 5
)

func (RelocTypeGeneric) GoString 

func (r RelocTypeGeneric) GoString() string

func (RelocTypeGeneric) String 

func (i RelocTypeGeneric) String() string

type RelocTypeX86_64 

type RelocTypeX86_64 int
const (
	X86_64_RELOC_UNSIGNED   RelocTypeX86_64 = 0
	X86_64_RELOC_SIGNED     RelocTypeX86_64 = 1
	X86_64_RELOC_BRANCH     RelocTypeX86_64 = 2
	X86_64_RELOC_GOT_LOAD   RelocTypeX86_64 = 3
	X86_64_RELOC_GOT        RelocTypeX86_64 = 4
	X86_64_RELOC_SUBTRACTOR RelocTypeX86_64 = 5
	X86_64_RELOC_SIGNED_1   RelocTypeX86_64 = 6
	X86_64_RELOC_SIGNED_2   RelocTypeX86_64 = 7
	X86_64_RELOC_SIGNED_4   RelocTypeX86_64 = 8
	X86_64_RELOC_TLV        RelocTypeX86_64 = 9
)

func (RelocTypeX86_64) GoString 

func (r RelocTypeX86_64) GoString() string

func (RelocTypeX86_64) String 

func (i RelocTypeX86_64) String() string

type Rpath 

type Rpath struct {
	LoadCmd
	Path string
}

A Rpath represents a Mach-O rpath command.

func (*Rpath) Command 

func (s *Rpath) Command() LoadCmd

func (*Rpath) Copy 

func (s *Rpath) Copy() *Rpath

func (*Rpath) LoadSize 

func (s *Rpath) LoadSize(t *FileTOC) uint32

func (*Rpath) String 

func (s *Rpath) String() string

type RpathCmd 

type RpathCmd struct {
	LoadCmd
	Len  uint32
	Path uint32
}

A RpathCmd is a Mach-O rpath command.

type SecFlags 

type SecFlags uint32

type Section 

type Section struct {
	SectionHeader
	Relocs []Reloc

	// Embed ReaderAt for ReadAt method.
	// Do not embed SectionReader directly
	// to avoid having Read and Seek.
	// If a client wants Read and Seek it must use
	// Open() to avoid fighting over the seek offset
	// with other clients.
	io.ReaderAt
	// contains filtered or unexported fields
}

func (*Section) Copy 

func (s *Section) Copy() *Section

func (*Section) Data 

func (s *Section) Data() ([]byte, error)

Data reads and returns the contents of the Mach-O section.

func (*Section) Open 

func (s *Section) Open() io.ReadSeeker

Open returns a new ReadSeeker reading the Mach-O section.

func (*Section) Put32 

func (s *Section) Put32(b []byte, o binary.ByteOrder) int

func (*Section) Put64 

func (s *Section) Put64(b []byte, o binary.ByteOrder) int

func (*Section) PutData 

func (s *Section) PutData(b []byte)

func (*Section) PutRelocs 

func (s *Section) PutRelocs(b []byte, o binary.ByteOrder) int

func (*Section) PutUncompressedData 

func (s *Section) PutUncompressedData(b []byte)

func (*Section) UncompressedSize 

func (s *Section) UncompressedSize() uint64

type Section32 

type Section32 struct {
	Name     [16]byte
	Seg      [16]byte
	Addr     uint32
	Size     uint32
	Offset   uint32
	Align    uint32
	Reloff   uint32
	Nreloc   uint32
	Flags    SecFlags
	Reserve1 uint32
	Reserve2 uint32
}

A Section32 is a 32-bit Mach-O section header.

type Section64 

type Section64 struct {
	Name     [16]byte
	Seg      [16]byte
	Addr     uint64
	Size     uint64
	Offset   uint32
	Align    uint32
	Reloff   uint32
	Nreloc   uint32
	Flags    SecFlags
	Reserve1 uint32
	Reserve2 uint32
	Reserve3 uint32
}

A Section64 is a 64-bit Mach-O section header.

type SectionHeader 

type SectionHeader struct {
	Name      string
	Seg       string
	Addr      uint64
	Size      uint64
	Offset    uint32
	Align     uint32
	Reloff    uint32
	Nreloc    uint32
	Flags     SecFlags
	Reserved1 uint32
	Reserved2 uint32
	Reserved3 uint32 // only present if original was 64-bit
}

type SegFlags 

type SegFlags uint32

type Segment 

type Segment struct {
	SegmentHeader

	// Embed ReaderAt for ReadAt method.
	// Do not embed SectionReader directly
	// to avoid having Read and Seek.
	// If a client wants Read and Seek it must use
	// Open() to avoid fighting over the seek offset
	// with other clients.
	io.ReaderAt
	// contains filtered or unexported fields
}

A Segment represents a Mach-O 32-bit or 64-bit load segment command.

func (*Segment) Copy 

func (s *Segment) Copy() *Segment

func (*Segment) CopyZeroed 

func (s *Segment) CopyZeroed() *Segment

func (*Segment) Data 

func (s *Segment) Data() ([]byte, error)

Data reads and returns the contents of the segment.

func (*Segment) LoadSize 

func (s *Segment) LoadSize(t *FileTOC) uint32

func (*Segment) Open 

func (s *Segment) Open() io.ReadSeeker

Open returns a new ReadSeeker reading the segment.

func (*Segment) Put32 

func (s *Segment) Put32(b []byte, o binary.ByteOrder) int

func (*Segment) Put64 

func (s *Segment) Put64(b []byte, o binary.ByteOrder) int

func (*Segment) String 

func (s *Segment) String() string

func (*Segment) UncompressedSize 

func (s *Segment) UncompressedSize(t *FileTOC, align uint64) uint64

UncompressedSize returns the size of the segment with its sections uncompressed, ignoring its offset within the file. The returned size is rounded up to the power of two in align.

type Segment32 

type Segment32 struct {
	LoadCmd
	Len     uint32
	Name    [16]byte
	Addr    uint32
	Memsz   uint32
	Offset  uint32
	Filesz  uint32
	Maxprot uint32
	Prot    uint32
	Nsect   uint32
	Flag    SegFlags
}

A Segment32 is a 32-bit Mach-O segment load command.

type Segment64 

type Segment64 struct {
	LoadCmd
	Len     uint32
	Name    [16]byte
	Addr    uint64
	Memsz   uint64
	Offset  uint64
	Filesz  uint64
	Maxprot uint32
	Prot    uint32
	Nsect   uint32
	Flag    SegFlags
}

A Segment64 is a 64-bit Mach-O segment load command.

type SegmentHeader 

type SegmentHeader struct {
	LoadCmd
	Len       uint32
	Name      string // 16 characters or fewer
	Addr      uint64 // memory address
	Memsz     uint64 // memory size
	Offset    uint64 // file offset
	Filesz    uint64 // number of bytes starting at that file offset
	Maxprot   uint32
	Prot      uint32
	Nsect     uint32
	Flag      SegFlags
	Firstsect uint32
}

A SegmentHeader is the header for a Mach-O 32-bit or 64-bit load segment command.

func (*SegmentHeader) String 

func (s *SegmentHeader) String() string

type Symbol 

type Symbol struct {
	Name  string
	Type  uint8
	Sect  uint8
	Desc  uint16
	Value uint64
}

A Symbol is a Mach-O 32-bit or 64-bit symbol table entry.

type Symtab 

type Symtab struct {
	SymtabCmd
	Syms []Symbol
}

A Symtab represents a Mach-O symbol table command.

func (*Symtab) Copy 

func (s *Symtab) Copy() *Symtab

func (*Symtab) LoadSize 

func (s *Symtab) LoadSize(t *FileTOC) uint32

func (*Symtab) Put 

func (s *Symtab) Put(b []byte, o binary.ByteOrder) int

func (*Symtab) String 

func (s *Symtab) String() string

type SymtabCmd 

type SymtabCmd struct {
	LoadCmd
	Len     uint32
	Symoff  uint32
	Nsyms   uint32
	Stroff  uint32
	Strsize uint32
}

A SymtabCmd is a Mach-O symbol table command.

type Thread 

type Thread struct {
	LoadCmd
	Len  uint32
	Type uint32
	Data []uint32
}

A Thread is a Mach-O thread state command.

type Uuid 

type Uuid struct {
	UuidCmd
}

func (*Uuid) Copy 

func (s *Uuid) Copy() *Uuid

func (*Uuid) LoadSize 

func (s *Uuid) LoadSize(t *FileTOC) uint32

func (*Uuid) Put 

func (s *Uuid) Put(b []byte, o binary.ByteOrder) int

func (*Uuid) String 

func (s *Uuid) String() string

type UuidCmd 

type UuidCmd struct {
	LoadCmd
	Len uint32
	Id  [16]byte
}

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