import "golang.org/x/tools/cmd/splitdwarf/internal/macho"
Package macho implements access to Mach-O object files.
fat.go file.go macho.go reloctype.go reloctype_string.go
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 )
type DyldInfo struct { 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
A Dylib represents a Mach-O load dynamic library command.
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 struct { DylinkerCmd // shared by 3 commands, need the LoadCmd Name string }
A DylinkerCmd is a Mach-O load dynamic linker or environment command.
type Dysymtab struct { DysymtabCmd IndirectSyms []uint32 // indices into Symtab.Syms }
A Dysymtab represents a Mach-O dynamic symbol table command.
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 struct { EncryptionInfoCmd }
func (s *EncryptionInfo) Copy() *EncryptionInfo
func (s *EncryptionInfo) LoadSize(t *FileTOC) uint32
func (s *EncryptionInfo) String() string
type EncryptionInfoCmd struct { LoadCmd Len uint32 CryptOff, CryptLen uint32 // file offset and length CryptId uint32 }
LC_ENCRYPTION_INFO, LC_ENCRYPTION_INFO_64
type EntryPointCmd struct { LoadCmd Len uint32 EntryOff uint64 // file offset StackSize uint64 // if not zero, initial stack size }
type FatArch struct { FatArchHeader *File }
A FatArch is a Mach-O File inside a FatFile.
A FatArchHeader represents a fat header for a specific image architecture.
A FatFile is a Mach-O universal binary that contains at least one architecture.
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.
OpenFat opens the named file using os.Open and prepares it for use as a Mach-O universal binary.
type File struct { FileTOC Symtab *Symtab Dysymtab *Dysymtab // contains filtered or unexported fields }
A File represents an open Mach-O file.
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.
Open opens the named file using os.Open and prepares it for use as a Mach-O binary.
Close closes the File. If the File was created using NewFile directly instead of Open, Close has no effect.
DWARF returns the DWARF debug information for the Mach-O file.
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.
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.
Section returns the first section with the given name, or nil if no such section exists.
Segment returns the first Segment with the given name, or nil if no such segment exists.
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.
Adds section to the most recently added 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.
DerivedCopy returns a modified copy of the TOC, with empty loads and sections, and with the specified header type and flags.
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.
HdrSize returns the size in bytes of the Macho header for a given magic number (where the magic number has been appropriately byte-swapped).
LoadAlign returns the required alignment of Load commands in a binary. This is used to add padding for necessary alignment.
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)
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.
SymbolSize returns the size in bytes of a Symbol (Nlist32 or Nlist64)
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 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 (e *FormatError) Error() string
func (e *FormatError) String() string
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 )
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 )
type LinkEditData struct { LinkEditDataCmd }
func (s *LinkEditData) Copy() *LinkEditData
func (s *LinkEditData) LoadSize(t *FileTOC) uint32
func (s *LinkEditData) String() string
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 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.
LoadBytes is the uninterpreted bytes of a Mach-O load command.
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 )
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 (s LoadCmdBytes) Copy() LoadCmdBytes
func (s LoadCmdBytes) String() string
An Nlist32 is a Mach-O 32-bit symbol table entry.
An Nlist64 is a Mach-O 64-bit symbol table entry.
type NoteCmd struct { LoadCmd Len uint32 Name [16]byte Offset, Filesz uint64 // file offset and length }
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 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 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.
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 (r RelocTypeARM) GoString() string
func (i RelocTypeARM) String() string
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 (r RelocTypeARM64) GoString() string
func (i RelocTypeARM64) String() string
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 (r RelocTypeGeneric) GoString() string
func (i RelocTypeGeneric) String() string
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 (r RelocTypeX86_64) GoString() string
func (i RelocTypeX86_64) String() string
A Rpath represents a Mach-O rpath command.
A RpathCmd is a Mach-O rpath command.
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 }
Data reads and returns the contents of the Mach-O section.
func (s *Section) Open() io.ReadSeeker
Open returns a new ReadSeeker reading the Mach-O section.
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 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 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 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.
Data reads and returns the contents of the segment.
func (s *Segment) Open() io.ReadSeeker
Open returns a new ReadSeeker reading the segment.
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 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 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 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 (s *SegmentHeader) String() string
A Symbol is a Mach-O 32-bit or 64-bit symbol table entry.
A Symtab represents a Mach-O symbol table command.
type SymtabCmd struct { LoadCmd Len uint32 Symoff uint32 Nsyms uint32 Stroff uint32 Strsize uint32 }
A SymtabCmd is a Mach-O symbol table command.
A Thread is a Mach-O thread state command.
Package macho imports 10 packages (graph) and is imported by 1 packages. Updated 2021-01-23. Refresh now. Tools for package owners.