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-rw-r--r--src/debug/macho/fat.go153
-rw-r--r--src/debug/macho/file.go726
-rw-r--r--src/debug/macho/file_test.go425
-rw-r--r--src/debug/macho/macho.go341
-rw-r--r--src/debug/macho/reloctype.go72
-rw-r--r--src/debug/macho/reloctype_string.go49
-rw-r--r--src/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base641
-rw-r--r--src/debug/macho/testdata/clang-386-darwin.obj.base641
-rw-r--r--src/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base641
-rw-r--r--src/debug/macho/testdata/clang-amd64-darwin.obj.base641
-rw-r--r--src/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base641
-rw-r--r--src/debug/macho/testdata/gcc-386-darwin-exec.base641
-rw-r--r--src/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base641
-rw-r--r--src/debug/macho/testdata/gcc-amd64-darwin-exec-with-bad-dysym.base641
-rw-r--r--src/debug/macho/testdata/gcc-amd64-darwin-exec.base641
-rw-r--r--src/debug/macho/testdata/hello.c8
16 files changed, 1783 insertions, 0 deletions
diff --git a/src/debug/macho/fat.go b/src/debug/macho/fat.go
new file mode 100644
index 0000000..679cefb
--- /dev/null
+++ b/src/debug/macho/fat.go
@@ -0,0 +1,153 @@
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package macho
+
+import (
+ "encoding/binary"
+ "fmt"
+ "internal/saferio"
+ "io"
+ "os"
+)
+
+// A FatFile is a Mach-O universal binary that contains at least one architecture.
+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
+}
+
+// ErrNotFat is returned from NewFatFile or OpenFat when the file is not a
+// universal binary but may be a thin binary, based on its magic number.
+var ErrNotFat = &FormatError{0, "not a fat Mach-O file", nil}
+
+// 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 NewFatFile(r io.ReaderAt) (*FatFile, error) {
+ var ff FatFile
+ sr := io.NewSectionReader(r, 0, 1<<63-1)
+
+ // Read the fat_header struct, which is always in big endian.
+ // Start with the magic number.
+ err := binary.Read(sr, binary.BigEndian, &ff.Magic)
+ if err != nil {
+ return nil, &FormatError{0, "error reading magic number", nil}
+ } else if ff.Magic != MagicFat {
+ // See if this is a Mach-O file via its magic number. The magic
+ // must be converted to little endian first though.
+ var buf [4]byte
+ binary.BigEndian.PutUint32(buf[:], ff.Magic)
+ leMagic := binary.LittleEndian.Uint32(buf[:])
+ if leMagic == Magic32 || leMagic == Magic64 {
+ return nil, ErrNotFat
+ } else {
+ return nil, &FormatError{0, "invalid magic number", nil}
+ }
+ }
+ offset := int64(4)
+
+ // Read the number of FatArchHeaders that come after the fat_header.
+ var narch uint32
+ err = binary.Read(sr, binary.BigEndian, &narch)
+ if err != nil {
+ return nil, &FormatError{offset, "invalid fat_header", nil}
+ }
+ offset += 4
+
+ if narch < 1 {
+ return nil, &FormatError{offset, "file contains no images", nil}
+ }
+
+ // Combine the Cpu and SubCpu (both uint32) into a uint64 to make sure
+ // there are not duplicate architectures.
+ seenArches := make(map[uint64]bool)
+ // Make sure that all images are for the same MH_ type.
+ var machoType Type
+
+ // Following the fat_header comes narch fat_arch structs that index
+ // Mach-O images further in the file.
+ c := saferio.SliceCap((*FatArch)(nil), uint64(narch))
+ if c < 0 {
+ return nil, &FormatError{offset, "too many images", nil}
+ }
+ ff.Arches = make([]FatArch, 0, c)
+ for i := uint32(0); i < narch; i++ {
+ var fa FatArch
+ err = binary.Read(sr, binary.BigEndian, &fa.FatArchHeader)
+ if err != nil {
+ return nil, &FormatError{offset, "invalid fat_arch header", nil}
+ }
+ offset += fatArchHeaderSize
+
+ fr := io.NewSectionReader(r, int64(fa.Offset), int64(fa.Size))
+ fa.File, err = NewFile(fr)
+ if err != nil {
+ return nil, err
+ }
+
+ // Make sure the architecture for this image is not duplicate.
+ seenArch := (uint64(fa.Cpu) << 32) | uint64(fa.SubCpu)
+ if o, k := seenArches[seenArch]; o || k {
+ return nil, &FormatError{offset, fmt.Sprintf("duplicate architecture cpu=%v, subcpu=%#x", fa.Cpu, fa.SubCpu), nil}
+ }
+ seenArches[seenArch] = true
+
+ // Make sure the Mach-O type matches that of the first image.
+ if i == 0 {
+ machoType = fa.Type
+ } else {
+ if fa.Type != machoType {
+ return nil, &FormatError{offset, fmt.Sprintf("Mach-O type for architecture #%d (type=%#x) does not match first (type=%#x)", i, fa.Type, machoType), nil}
+ }
+ }
+
+ ff.Arches = append(ff.Arches, fa)
+ }
+
+ return &ff, nil
+}
+
+// OpenFat opens the named file using os.Open and prepares it for use as a Mach-O
+// universal binary.
+func OpenFat(name string) (*FatFile, error) {
+ f, err := os.Open(name)
+ if err != nil {
+ return nil, err
+ }
+ ff, err := NewFatFile(f)
+ if err != nil {
+ f.Close()
+ return nil, err
+ }
+ ff.closer = f
+ return ff, nil
+}
+
+func (ff *FatFile) Close() error {
+ var err error
+ if ff.closer != nil {
+ err = ff.closer.Close()
+ ff.closer = nil
+ }
+ return err
+}
diff --git a/src/debug/macho/file.go b/src/debug/macho/file.go
new file mode 100644
index 0000000..ecde25a
--- /dev/null
+++ b/src/debug/macho/file.go
@@ -0,0 +1,726 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+/*
+Package macho implements access to Mach-O object files.
+
+# Security
+
+This package is not designed to be hardened against adversarial inputs, and is
+outside the scope of https://go.dev/security/policy. In particular, only basic
+validation is done when parsing object files. As such, care should be taken when
+parsing untrusted inputs, as parsing malformed files may consume significant
+resources, or cause panics.
+*/
+package macho
+
+// High level access to low level data structures.
+
+import (
+ "bytes"
+ "compress/zlib"
+ "debug/dwarf"
+ "encoding/binary"
+ "fmt"
+ "internal/saferio"
+ "io"
+ "os"
+ "strings"
+)
+
+// A File represents an open Mach-O file.
+type File struct {
+ FileHeader
+ ByteOrder binary.ByteOrder
+ Loads []Load
+ Sections []*Section
+
+ Symtab *Symtab
+ Dysymtab *Dysymtab
+
+ closer io.Closer
+}
+
+// A Load represents any Mach-O load command.
+type Load interface {
+ Raw() []byte
+}
+
+// A LoadBytes is the uninterpreted bytes of a Mach-O load command.
+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
+}
+
+// A Segment represents a Mach-O 32-bit or 64-bit load segment command.
+type Segment struct {
+ LoadBytes
+ 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
+ sr *io.SectionReader
+}
+
+// Data reads and returns the contents of the segment.
+func (s *Segment) Data() ([]byte, error) {
+ return saferio.ReadDataAt(s.sr, s.Filesz, 0)
+}
+
+// Open returns a new ReadSeeker reading the segment.
+func (s *Segment) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) }
+
+type SectionHeader struct {
+ Name string
+ Seg string
+ Addr uint64
+ Size uint64
+ Offset uint32
+ Align uint32
+ Reloff uint32
+ Nreloc uint32
+ Flags uint32
+}
+
+// A Reloc represents a Mach-O relocation.
+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
+}
+
+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
+ sr *io.SectionReader
+}
+
+// Data reads and returns the contents of the Mach-O section.
+func (s *Section) Data() ([]byte, error) {
+ return saferio.ReadDataAt(s.sr, s.Size, 0)
+}
+
+// Open returns a new ReadSeeker reading the Mach-O section.
+func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) }
+
+// A Dylib represents a Mach-O load dynamic library command.
+type Dylib struct {
+ LoadBytes
+ Name string
+ Time uint32
+ CurrentVersion uint32
+ CompatVersion uint32
+}
+
+// A Symtab represents a Mach-O symbol table command.
+type Symtab struct {
+ LoadBytes
+ SymtabCmd
+ Syms []Symbol
+}
+
+// A Dysymtab represents a Mach-O dynamic symbol table command.
+type Dysymtab struct {
+ LoadBytes
+ DysymtabCmd
+ IndirectSyms []uint32 // indices into Symtab.Syms
+}
+
+// A Rpath represents a Mach-O rpath command.
+type Rpath struct {
+ LoadBytes
+ Path string
+}
+
+// A Symbol is a Mach-O 32-bit or 64-bit symbol table entry.
+type Symbol struct {
+ Name string
+ Type uint8
+ Sect uint8
+ Desc uint16
+ Value uint64
+}
+
+/*
+ * Mach-O reader
+ */
+
+// FormatError is returned by some operations if the data does
+// not have the correct format for an object file.
+type FormatError struct {
+ off int64
+ msg string
+ val any
+}
+
+func (e *FormatError) Error() string {
+ msg := e.msg
+ if e.val != nil {
+ msg += fmt.Sprintf(" '%v'", e.val)
+ }
+ msg += fmt.Sprintf(" in record at byte %#x", e.off)
+ return msg
+}
+
+// Open opens the named file using os.Open and prepares it for use as a Mach-O binary.
+func Open(name string) (*File, error) {
+ f, err := os.Open(name)
+ if err != nil {
+ return nil, err
+ }
+ ff, err := NewFile(f)
+ if err != nil {
+ f.Close()
+ return nil, err
+ }
+ ff.closer = f
+ return ff, nil
+}
+
+// Close closes the File.
+// If the File was created using NewFile directly instead of Open,
+// Close has no effect.
+func (f *File) Close() error {
+ var err error
+ if f.closer != nil {
+ err = f.closer.Close()
+ f.closer = nil
+ }
+ return err
+}
+
+// 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 NewFile(r io.ReaderAt) (*File, error) {
+ f := new(File)
+ sr := io.NewSectionReader(r, 0, 1<<63-1)
+
+ // Read and decode Mach magic to determine byte order, size.
+ // Magic32 and Magic64 differ only in the bottom bit.
+ var ident [4]byte
+ if _, err := r.ReadAt(ident[0:], 0); err != nil {
+ return nil, err
+ }
+ be := binary.BigEndian.Uint32(ident[0:])
+ le := binary.LittleEndian.Uint32(ident[0:])
+ switch Magic32 &^ 1 {
+ case be &^ 1:
+ f.ByteOrder = binary.BigEndian
+ f.Magic = be
+ case le &^ 1:
+ f.ByteOrder = binary.LittleEndian
+ f.Magic = le
+ default:
+ return nil, &FormatError{0, "invalid magic number", nil}
+ }
+
+ // Read entire file header.
+ if err := binary.Read(sr, f.ByteOrder, &f.FileHeader); err != nil {
+ return nil, err
+ }
+
+ // Then load commands.
+ offset := int64(fileHeaderSize32)
+ if f.Magic == Magic64 {
+ offset = fileHeaderSize64
+ }
+ dat, err := saferio.ReadDataAt(r, uint64(f.Cmdsz), offset)
+ if err != nil {
+ return nil, err
+ }
+ c := saferio.SliceCap((*Load)(nil), uint64(f.Ncmd))
+ if c < 0 {
+ return nil, &FormatError{offset, "too many load commands", nil}
+ }
+ f.Loads = make([]Load, 0, c)
+ bo := f.ByteOrder
+ for i := uint32(0); i < f.Ncmd; i++ {
+ // Each load command begins with uint32 command and length.
+ if len(dat) < 8 {
+ return nil, &FormatError{offset, "command block too small", nil}
+ }
+ cmd, siz := LoadCmd(bo.Uint32(dat[0:4])), bo.Uint32(dat[4:8])
+ if siz < 8 || siz > uint32(len(dat)) {
+ return nil, &FormatError{offset, "invalid command block size", nil}
+ }
+ var cmddat []byte
+ cmddat, dat = dat[0:siz], dat[siz:]
+ offset += int64(siz)
+ var s *Segment
+ switch cmd {
+ default:
+ f.Loads = append(f.Loads, LoadBytes(cmddat))
+
+ case LoadCmdRpath:
+ var hdr RpathCmd
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &hdr); err != nil {
+ return nil, err
+ }
+ l := new(Rpath)
+ if hdr.Path >= uint32(len(cmddat)) {
+ return nil, &FormatError{offset, "invalid path in rpath command", hdr.Path}
+ }
+ l.Path = cstring(cmddat[hdr.Path:])
+ l.LoadBytes = LoadBytes(cmddat)
+ f.Loads = append(f.Loads, l)
+
+ case LoadCmdDylib:
+ var hdr DylibCmd
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &hdr); err != nil {
+ return nil, err
+ }
+ l := new(Dylib)
+ if hdr.Name >= uint32(len(cmddat)) {
+ return nil, &FormatError{offset, "invalid name in dynamic library command", hdr.Name}
+ }
+ l.Name = cstring(cmddat[hdr.Name:])
+ l.Time = hdr.Time
+ l.CurrentVersion = hdr.CurrentVersion
+ l.CompatVersion = hdr.CompatVersion
+ l.LoadBytes = LoadBytes(cmddat)
+ f.Loads = append(f.Loads, l)
+
+ case LoadCmdSymtab:
+ var hdr SymtabCmd
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &hdr); err != nil {
+ return nil, err
+ }
+ strtab := make([]byte, hdr.Strsize)
+ if _, err := r.ReadAt(strtab, int64(hdr.Stroff)); err != nil {
+ return nil, err
+ }
+ var symsz int
+ if f.Magic == Magic64 {
+ symsz = 16
+ } else {
+ symsz = 12
+ }
+ symdat, err := saferio.ReadDataAt(r, uint64(hdr.Nsyms)*uint64(symsz), int64(hdr.Symoff))
+ if err != nil {
+ return nil, err
+ }
+ st, err := f.parseSymtab(symdat, strtab, cmddat, &hdr, offset)
+ if err != nil {
+ return nil, err
+ }
+ f.Loads = append(f.Loads, st)
+ f.Symtab = st
+
+ case LoadCmdDysymtab:
+ var hdr DysymtabCmd
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &hdr); err != nil {
+ return nil, err
+ }
+ if hdr.Iundefsym > uint32(len(f.Symtab.Syms)) {
+ return nil, &FormatError{offset, fmt.Sprintf(
+ "undefined symbols index in dynamic symbol table command is greater than symbol table length (%d > %d)",
+ hdr.Iundefsym, len(f.Symtab.Syms)), nil}
+ } else if hdr.Iundefsym+hdr.Nundefsym > uint32(len(f.Symtab.Syms)) {
+ return nil, &FormatError{offset, fmt.Sprintf(
+ "number of undefined symbols after index in dynamic symbol table command is greater than symbol table length (%d > %d)",
+ hdr.Iundefsym+hdr.Nundefsym, len(f.Symtab.Syms)), nil}
+ }
+ dat := make([]byte, hdr.Nindirectsyms*4)
+ if _, err := r.ReadAt(dat, int64(hdr.Indirectsymoff)); err != nil {
+ return nil, err
+ }
+ x := make([]uint32, hdr.Nindirectsyms)
+ if err := binary.Read(bytes.NewReader(dat), bo, x); err != nil {
+ return nil, err
+ }
+ st := new(Dysymtab)
+ st.LoadBytes = LoadBytes(cmddat)
+ st.DysymtabCmd = hdr
+ st.IndirectSyms = x
+ f.Loads = append(f.Loads, st)
+ f.Dysymtab = st
+
+ case LoadCmdSegment:
+ var seg32 Segment32
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &seg32); err != nil {
+ return nil, err
+ }
+ s = new(Segment)
+ s.LoadBytes = cmddat
+ s.Cmd = cmd
+ s.Len = siz
+ s.Name = cstring(seg32.Name[0:])
+ s.Addr = uint64(seg32.Addr)
+ s.Memsz = uint64(seg32.Memsz)
+ s.Offset = uint64(seg32.Offset)
+ s.Filesz = uint64(seg32.Filesz)
+ s.Maxprot = seg32.Maxprot
+ s.Prot = seg32.Prot
+ s.Nsect = seg32.Nsect
+ s.Flag = seg32.Flag
+ f.Loads = append(f.Loads, s)
+ for i := 0; i < int(s.Nsect); i++ {
+ var sh32 Section32
+ if err := binary.Read(b, bo, &sh32); err != nil {
+ return nil, err
+ }
+ sh := new(Section)
+ sh.Name = cstring(sh32.Name[0:])
+ sh.Seg = cstring(sh32.Seg[0:])
+ sh.Addr = uint64(sh32.Addr)
+ sh.Size = uint64(sh32.Size)
+ sh.Offset = sh32.Offset
+ sh.Align = sh32.Align
+ sh.Reloff = sh32.Reloff
+ sh.Nreloc = sh32.Nreloc
+ sh.Flags = sh32.Flags
+ if err := f.pushSection(sh, r); err != nil {
+ return nil, err
+ }
+ }
+
+ case LoadCmdSegment64:
+ var seg64 Segment64
+ b := bytes.NewReader(cmddat)
+ if err := binary.Read(b, bo, &seg64); err != nil {
+ return nil, err
+ }
+ s = new(Segment)
+ s.LoadBytes = cmddat
+ s.Cmd = cmd
+ s.Len = siz
+ s.Name = cstring(seg64.Name[0:])
+ s.Addr = seg64.Addr
+ s.Memsz = seg64.Memsz
+ s.Offset = seg64.Offset
+ s.Filesz = seg64.Filesz
+ s.Maxprot = seg64.Maxprot
+ s.Prot = seg64.Prot
+ s.Nsect = seg64.Nsect
+ s.Flag = seg64.Flag
+ f.Loads = append(f.Loads, s)
+ for i := 0; i < int(s.Nsect); i++ {
+ var sh64 Section64
+ if err := binary.Read(b, bo, &sh64); err != nil {
+ return nil, err
+ }
+ sh := new(Section)
+ sh.Name = cstring(sh64.Name[0:])
+ sh.Seg = cstring(sh64.Seg[0:])
+ sh.Addr = sh64.Addr
+ sh.Size = sh64.Size
+ sh.Offset = sh64.Offset
+ sh.Align = sh64.Align
+ sh.Reloff = sh64.Reloff
+ sh.Nreloc = sh64.Nreloc
+ sh.Flags = sh64.Flags
+ if err := f.pushSection(sh, r); err != nil {
+ return nil, err
+ }
+ }
+ }
+ if s != nil {
+ if int64(s.Offset) < 0 {
+ return nil, &FormatError{offset, "invalid section offset", s.Offset}
+ }
+ if int64(s.Filesz) < 0 {
+ return nil, &FormatError{offset, "invalid section file size", s.Filesz}
+ }
+ s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.Filesz))
+ s.ReaderAt = s.sr
+ }
+ }
+ return f, nil
+}
+
+func (f *File) parseSymtab(symdat, strtab, cmddat []byte, hdr *SymtabCmd, offset int64) (*Symtab, error) {
+ bo := f.ByteOrder
+ c := saferio.SliceCap((*Symbol)(nil), uint64(hdr.Nsyms))
+ if c < 0 {
+ return nil, &FormatError{offset, "too many symbols", nil}
+ }
+ symtab := make([]Symbol, 0, c)
+ b := bytes.NewReader(symdat)
+ for i := 0; i < int(hdr.Nsyms); i++ {
+ var n Nlist64
+ if f.Magic == Magic64 {
+ if err := binary.Read(b, bo, &n); err != nil {
+ return nil, err
+ }
+ } else {
+ var n32 Nlist32
+ if err := binary.Read(b, bo, &n32); err != nil {
+ return nil, err
+ }
+ n.Name = n32.Name
+ n.Type = n32.Type
+ n.Sect = n32.Sect
+ n.Desc = n32.Desc
+ n.Value = uint64(n32.Value)
+ }
+ if n.Name >= uint32(len(strtab)) {
+ return nil, &FormatError{offset, "invalid name in symbol table", n.Name}
+ }
+ // We add "_" to Go symbols. Strip it here. See issue 33808.
+ name := cstring(strtab[n.Name:])
+ if strings.Contains(name, ".") && name[0] == '_' {
+ name = name[1:]
+ }
+ symtab = append(symtab, Symbol{
+ Name: name,
+ Type: n.Type,
+ Sect: n.Sect,
+ Desc: n.Desc,
+ Value: n.Value,
+ })
+ }
+ st := new(Symtab)
+ st.LoadBytes = LoadBytes(cmddat)
+ st.Syms = symtab
+ return st, nil
+}
+
+type relocInfo struct {
+ Addr uint32
+ Symnum uint32
+}
+
+func (f *File) pushSection(sh *Section, r io.ReaderAt) error {
+ f.Sections = append(f.Sections, sh)
+ sh.sr = io.NewSectionReader(r, int64(sh.Offset), int64(sh.Size))
+ sh.ReaderAt = sh.sr
+
+ if sh.Nreloc > 0 {
+ reldat, err := saferio.ReadDataAt(r, uint64(sh.Nreloc)*8, int64(sh.Reloff))
+ if err != nil {
+ return err
+ }
+ b := bytes.NewReader(reldat)
+
+ bo := f.ByteOrder
+
+ sh.Relocs = make([]Reloc, sh.Nreloc)
+ for i := range sh.Relocs {
+ rel := &sh.Relocs[i]
+
+ var ri relocInfo
+ if err := binary.Read(b, bo, &ri); err != nil {
+ return err
+ }
+
+ if ri.Addr&(1<<31) != 0 { // scattered
+ rel.Addr = ri.Addr & (1<<24 - 1)
+ rel.Type = uint8((ri.Addr >> 24) & (1<<4 - 1))
+ rel.Len = uint8((ri.Addr >> 28) & (1<<2 - 1))
+ rel.Pcrel = ri.Addr&(1<<30) != 0
+ rel.Value = ri.Symnum
+ rel.Scattered = true
+ } else {
+ switch bo {
+ case binary.LittleEndian:
+ rel.Addr = ri.Addr
+ rel.Value = ri.Symnum & (1<<24 - 1)
+ rel.Pcrel = ri.Symnum&(1<<24) != 0
+ rel.Len = uint8((ri.Symnum >> 25) & (1<<2 - 1))
+ rel.Extern = ri.Symnum&(1<<27) != 0
+ rel.Type = uint8((ri.Symnum >> 28) & (1<<4 - 1))
+ case binary.BigEndian:
+ rel.Addr = ri.Addr
+ rel.Value = ri.Symnum >> 8
+ rel.Pcrel = ri.Symnum&(1<<7) != 0
+ rel.Len = uint8((ri.Symnum >> 5) & (1<<2 - 1))
+ rel.Extern = ri.Symnum&(1<<4) != 0
+ rel.Type = uint8(ri.Symnum & (1<<4 - 1))
+ default:
+ panic("unreachable")
+ }
+ }
+ }
+ }
+
+ return nil
+}
+
+func cstring(b []byte) string {
+ i := bytes.IndexByte(b, 0)
+ if i == -1 {
+ i = len(b)
+ }
+ return string(b[0:i])
+}
+
+// Segment returns the first Segment with the given name, or nil if no such segment exists.
+func (f *File) Segment(name string) *Segment {
+ for _, l := range f.Loads {
+ if s, ok := l.(*Segment); ok && s.Name == name {
+ return s
+ }
+ }
+ return nil
+}
+
+// Section returns the first section with the given name, or nil if no such
+// section exists.
+func (f *File) Section(name string) *Section {
+ for _, s := range f.Sections {
+ if s.Name == name {
+ return s
+ }
+ }
+ return nil
+}
+
+// DWARF returns the DWARF debug information for the Mach-O file.
+func (f *File) DWARF() (*dwarf.Data, error) {
+ dwarfSuffix := func(s *Section) string {
+ switch {
+ case strings.HasPrefix(s.Name, "__debug_"):
+ return s.Name[8:]
+ case strings.HasPrefix(s.Name, "__zdebug_"):
+ return s.Name[9:]
+ default:
+ return ""
+ }
+
+ }
+ sectionData := func(s *Section) ([]byte, error) {
+ b, err := s.Data()
+ if err != nil && uint64(len(b)) < s.Size {
+ return nil, err
+ }
+
+ if len(b) >= 12 && string(b[:4]) == "ZLIB" {
+ dlen := binary.BigEndian.Uint64(b[4:12])
+ dbuf := make([]byte, dlen)
+ r, err := zlib.NewReader(bytes.NewBuffer(b[12:]))
+ if err != nil {
+ return nil, err
+ }
+ if _, err := io.ReadFull(r, dbuf); err != nil {
+ return nil, err
+ }
+ if err := r.Close(); err != nil {
+ return nil, err
+ }
+ b = dbuf
+ }
+ return b, nil
+ }
+
+ // There are many other DWARF sections, but these
+ // are the ones the debug/dwarf package uses.
+ // Don't bother loading others.
+ var dat = map[string][]byte{"abbrev": nil, "info": nil, "str": nil, "line": nil, "ranges": nil}
+ for _, s := range f.Sections {
+ suffix := dwarfSuffix(s)
+ if suffix == "" {
+ continue
+ }
+ if _, ok := dat[suffix]; !ok {
+ continue
+ }
+ b, err := sectionData(s)
+ if err != nil {
+ return nil, err
+ }
+ dat[suffix] = b
+ }
+
+ d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, dat["ranges"], dat["str"])
+ if err != nil {
+ return nil, err
+ }
+
+ // Look for DWARF4 .debug_types sections and DWARF5 sections.
+ for i, s := range f.Sections {
+ suffix := dwarfSuffix(s)
+ if suffix == "" {
+ continue
+ }
+ if _, ok := dat[suffix]; ok {
+ // Already handled.
+ continue
+ }
+
+ b, err := sectionData(s)
+ if err != nil {
+ return nil, err
+ }
+
+ if suffix == "types" {
+ err = d.AddTypes(fmt.Sprintf("types-%d", i), b)
+ } else {
+ err = d.AddSection(".debug_"+suffix, b)
+ }
+ if err != nil {
+ return nil, err
+ }
+ }
+
+ return d, nil
+}
+
+// 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 (f *File) ImportedSymbols() ([]string, error) {
+ if f.Dysymtab == nil || f.Symtab == nil {
+ return nil, &FormatError{0, "missing symbol table", nil}
+ }
+
+ st := f.Symtab
+ dt := f.Dysymtab
+ var all []string
+ for _, s := range st.Syms[dt.Iundefsym : dt.Iundefsym+dt.Nundefsym] {
+ all = append(all, s.Name)
+ }
+ return all, nil
+}
+
+// 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 (f *File) ImportedLibraries() ([]string, error) {
+ var all []string
+ for _, l := range f.Loads {
+ if lib, ok := l.(*Dylib); ok {
+ all = append(all, lib.Name)
+ }
+ }
+ return all, nil
+}
diff --git a/src/debug/macho/file_test.go b/src/debug/macho/file_test.go
new file mode 100644
index 0000000..313c376
--- /dev/null
+++ b/src/debug/macho/file_test.go
@@ -0,0 +1,425 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package macho
+
+import (
+ "bytes"
+ "internal/obscuretestdata"
+ "io"
+ "reflect"
+ "testing"
+)
+
+type fileTest struct {
+ file string
+ hdr FileHeader
+ loads []any
+ sections []*SectionHeader
+ relocations map[string][]Reloc
+}
+
+var fileTests = []fileTest{
+ {
+ "testdata/gcc-386-darwin-exec.base64",
+ FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0xc, 0x3c0, 0x85},
+ []any{
+ &SegmentHeader{LoadCmdSegment, 0x38, "__PAGEZERO", 0x0, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
+ &SegmentHeader{LoadCmdSegment, 0xc0, "__TEXT", 0x1000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x2, 0x0},
+ &SegmentHeader{LoadCmdSegment, 0xc0, "__DATA", 0x2000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x2, 0x0},
+ &SegmentHeader{LoadCmdSegment, 0x7c, "__IMPORT", 0x3000, 0x1000, 0x2000, 0x1000, 0x7, 0x7, 0x1, 0x0},
+ &SegmentHeader{LoadCmdSegment, 0x38, "__LINKEDIT", 0x4000, 0x1000, 0x3000, 0x12c, 0x7, 0x1, 0x0, 0x0},
+ nil, // LC_SYMTAB
+ nil, // LC_DYSYMTAB
+ nil, // LC_LOAD_DYLINKER
+ nil, // LC_UUID
+ nil, // LC_UNIXTHREAD
+ &Dylib{nil, "/usr/lib/libgcc_s.1.dylib", 0x2, 0x10000, 0x10000},
+ &Dylib{nil, "/usr/lib/libSystem.B.dylib", 0x2, 0x6f0104, 0x10000},
+ },
+ []*SectionHeader{
+ {"__text", "__TEXT", 0x1f68, 0x88, 0xf68, 0x2, 0x0, 0x0, 0x80000400},
+ {"__cstring", "__TEXT", 0x1ff0, 0xd, 0xff0, 0x0, 0x0, 0x0, 0x2},
+ {"__data", "__DATA", 0x2000, 0x14, 0x1000, 0x2, 0x0, 0x0, 0x0},
+ {"__dyld", "__DATA", 0x2014, 0x1c, 0x1014, 0x2, 0x0, 0x0, 0x0},
+ {"__jump_table", "__IMPORT", 0x3000, 0xa, 0x2000, 0x6, 0x0, 0x0, 0x4000008},
+ },
+ nil,
+ },
+ {
+ "testdata/gcc-amd64-darwin-exec.base64",
+ FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0xb, 0x568, 0x85},
+ []any{
+ &SegmentHeader{LoadCmdSegment64, 0x48, "__PAGEZERO", 0x0, 0x100000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0},
+ &SegmentHeader{LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x5, 0x0},
+ &SegmentHeader{LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x3, 0x0},
+ &SegmentHeader{LoadCmdSegment64, 0x48, "__LINKEDIT", 0x100002000, 0x1000, 0x2000, 0x140, 0x7, 0x1, 0x0, 0x0},
+ nil, // LC_SYMTAB
+ nil, // LC_DYSYMTAB
+ nil, // LC_LOAD_DYLINKER
+ nil, // LC_UUID
+ nil, // LC_UNIXTHREAD
+ &Dylib{nil, "/usr/lib/libgcc_s.1.dylib", 0x2, 0x10000, 0x10000},
+ &Dylib{nil, "/usr/lib/libSystem.B.dylib", 0x2, 0x6f0104, 0x10000},
+ },
+ []*SectionHeader{
+ {"__text", "__TEXT", 0x100000f14, 0x6d, 0xf14, 0x2, 0x0, 0x0, 0x80000400},
+ {"__symbol_stub1", "__TEXT", 0x100000f81, 0xc, 0xf81, 0x0, 0x0, 0x0, 0x80000408},
+ {"__stub_helper", "__TEXT", 0x100000f90, 0x18, 0xf90, 0x2, 0x0, 0x0, 0x0},
+ {"__cstring", "__TEXT", 0x100000fa8, 0xd, 0xfa8, 0x0, 0x0, 0x0, 0x2},
+ {"__eh_frame", "__TEXT", 0x100000fb8, 0x48, 0xfb8, 0x3, 0x0, 0x0, 0x6000000b},
+ {"__data", "__DATA", 0x100001000, 0x1c, 0x1000, 0x3, 0x0, 0x0, 0x0},
+ {"__dyld", "__DATA", 0x100001020, 0x38, 0x1020, 0x3, 0x0, 0x0, 0x0},
+ {"__la_symbol_ptr", "__DATA", 0x100001058, 0x10, 0x1058, 0x2, 0x0, 0x0, 0x7},
+ },
+ nil,
+ },
+ {
+ "testdata/gcc-amd64-darwin-exec-debug.base64",
+ FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0xa, 0x4, 0x5a0, 0},
+ []any{
+ nil, // LC_UUID
+ &SegmentHeader{LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x0, 0x7, 0x5, 0x5, 0x0},
+ &SegmentHeader{LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x0, 0x0, 0x7, 0x3, 0x3, 0x0},
+ &SegmentHeader{LoadCmdSegment64, 0x278, "__DWARF", 0x100002000, 0x1000, 0x1000, 0x1bc, 0x7, 0x3, 0x7, 0x0},
+ },
+ []*SectionHeader{
+ {"__text", "__TEXT", 0x100000f14, 0x0, 0x0, 0x2, 0x0, 0x0, 0x80000400},
+ {"__symbol_stub1", "__TEXT", 0x100000f81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000408},
+ {"__stub_helper", "__TEXT", 0x100000f90, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0},
+ {"__cstring", "__TEXT", 0x100000fa8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2},
+ {"__eh_frame", "__TEXT", 0x100000fb8, 0x0, 0x0, 0x3, 0x0, 0x0, 0x6000000b},
+ {"__data", "__DATA", 0x100001000, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0},
+ {"__dyld", "__DATA", 0x100001020, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0},
+ {"__la_symbol_ptr", "__DATA", 0x100001058, 0x0, 0x0, 0x2, 0x0, 0x0, 0x7},
+ {"__debug_abbrev", "__DWARF", 0x100002000, 0x36, 0x1000, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_aranges", "__DWARF", 0x100002036, 0x30, 0x1036, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_frame", "__DWARF", 0x100002066, 0x40, 0x1066, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_info", "__DWARF", 0x1000020a6, 0x54, 0x10a6, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_line", "__DWARF", 0x1000020fa, 0x47, 0x10fa, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_pubnames", "__DWARF", 0x100002141, 0x1b, 0x1141, 0x0, 0x0, 0x0, 0x0},
+ {"__debug_str", "__DWARF", 0x10000215c, 0x60, 0x115c, 0x0, 0x0, 0x0, 0x0},
+ },
+ nil,
+ },
+ {
+ "testdata/clang-386-darwin-exec-with-rpath.base64",
+ FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0x10, 0x42c, 0x1200085},
+ []any{
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_DYLD_INFO_ONLY
+ nil, // LC_SYMTAB
+ nil, // LC_DYSYMTAB
+ nil, // LC_LOAD_DYLINKER
+ nil, // LC_UUID
+ nil, // LC_VERSION_MIN_MACOSX
+ nil, // LC_SOURCE_VERSION
+ nil, // LC_MAIN
+ nil, // LC_LOAD_DYLIB
+ &Rpath{nil, "/my/rpath"},
+ nil, // LC_FUNCTION_STARTS
+ nil, // LC_DATA_IN_CODE
+ },
+ nil,
+ nil,
+ },
+ {
+ "testdata/clang-amd64-darwin-exec-with-rpath.base64",
+ FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0x10, 0x4c8, 0x200085},
+ []any{
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_SEGMENT
+ nil, // LC_DYLD_INFO_ONLY
+ nil, // LC_SYMTAB
+ nil, // LC_DYSYMTAB
+ nil, // LC_LOAD_DYLINKER
+ nil, // LC_UUID
+ nil, // LC_VERSION_MIN_MACOSX
+ nil, // LC_SOURCE_VERSION
+ nil, // LC_MAIN
+ nil, // LC_LOAD_DYLIB
+ &Rpath{nil, "/my/rpath"},
+ nil, // LC_FUNCTION_STARTS
+ nil, // LC_DATA_IN_CODE
+ },
+ nil,
+ nil,
+ },
+ {
+ "testdata/clang-386-darwin.obj.base64",
+ FileHeader{0xfeedface, Cpu386, 0x3, 0x1, 0x4, 0x138, 0x2000},
+ nil,
+ nil,
+ map[string][]Reloc{
+ "__text": {
+ {
+ Addr: 0x1d,
+ Type: uint8(GENERIC_RELOC_VANILLA),
+ Len: 2,
+ Pcrel: true,
+ Extern: true,
+ Value: 1,
+ Scattered: false,
+ },
+ {
+ Addr: 0xe,
+ Type: uint8(GENERIC_RELOC_LOCAL_SECTDIFF),
+ Len: 2,
+ Pcrel: false,
+ Value: 0x2d,
+ Scattered: true,
+ },
+ {
+ Addr: 0x0,
+ Type: uint8(GENERIC_RELOC_PAIR),
+ Len: 2,
+ Pcrel: false,
+ Value: 0xb,
+ Scattered: true,
+ },
+ },
+ },
+ },
+ {
+ "testdata/clang-amd64-darwin.obj.base64",
+ FileHeader{0xfeedfacf, CpuAmd64, 0x3, 0x1, 0x4, 0x200, 0x2000},
+ nil,
+ nil,
+ map[string][]Reloc{
+ "__text": {
+ {
+ Addr: 0x19,
+ Type: uint8(X86_64_RELOC_BRANCH),
+ Len: 2,
+ Pcrel: true,
+ Extern: true,
+ Value: 1,
+ },
+ {
+ Addr: 0xb,
+ Type: uint8(X86_64_RELOC_SIGNED),
+ Len: 2,
+ Pcrel: true,
+ Extern: false,
+ Value: 2,
+ },
+ },
+ "__compact_unwind": {
+ {
+ Addr: 0x0,
+ Type: uint8(X86_64_RELOC_UNSIGNED),
+ Len: 3,
+ Pcrel: false,
+ Extern: false,
+ Value: 1,
+ },
+ },
+ },
+ },
+}
+
+func readerAtFromObscured(name string) (io.ReaderAt, error) {
+ b, err := obscuretestdata.ReadFile(name)
+ if err != nil {
+ return nil, err
+ }
+ return bytes.NewReader(b), nil
+}
+
+func openObscured(name string) (*File, error) {
+ ra, err := readerAtFromObscured(name)
+ if err != nil {
+ return nil, err
+ }
+ ff, err := NewFile(ra)
+ if err != nil {
+ return nil, err
+ }
+ return ff, nil
+}
+
+func openFatObscured(name string) (*FatFile, error) {
+ ra, err := readerAtFromObscured(name)
+ if err != nil {
+ return nil, err
+ }
+ ff, err := NewFatFile(ra)
+ if err != nil {
+ return nil, err
+ }
+ return ff, nil
+}
+
+func TestOpen(t *testing.T) {
+ for i := range fileTests {
+ tt := &fileTests[i]
+
+ // Use obscured files to prevent Apple’s notarization service from
+ // mistaking them as candidates for notarization and rejecting the entire
+ // toolchain.
+ // See golang.org/issue/34986
+ f, err := openObscured(tt.file)
+ if err != nil {
+ t.Error(err)
+ continue
+ }
+ if !reflect.DeepEqual(f.FileHeader, tt.hdr) {
+ t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr)
+ continue
+ }
+ for i, l := range f.Loads {
+ if len(l.Raw()) < 8 {
+ t.Errorf("open %s, command %d:\n\tload command %T don't have enough data\n", tt.file, i, l)
+ }
+ }
+ if tt.loads != nil {
+ for i, l := range f.Loads {
+ if i >= len(tt.loads) {
+ break
+ }
+
+ want := tt.loads[i]
+ if want == nil {
+ continue
+ }
+
+ switch l := l.(type) {
+ case *Segment:
+ have := &l.SegmentHeader
+ if !reflect.DeepEqual(have, want) {
+ t.Errorf("open %s, command %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
+ }
+ case *Dylib:
+ have := l
+ have.LoadBytes = nil
+ if !reflect.DeepEqual(have, want) {
+ t.Errorf("open %s, command %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
+ }
+ case *Rpath:
+ have := l
+ have.LoadBytes = nil
+ if !reflect.DeepEqual(have, want) {
+ t.Errorf("open %s, command %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
+ }
+ default:
+ t.Errorf("open %s, command %d: unknown load command\n\thave %#v\n\twant %#v\n", tt.file, i, l, want)
+ }
+ }
+ tn := len(tt.loads)
+ fn := len(f.Loads)
+ if tn != fn {
+ t.Errorf("open %s: len(Loads) = %d, want %d", tt.file, fn, tn)
+ }
+ }
+
+ if tt.sections != nil {
+ for i, sh := range f.Sections {
+ if i >= len(tt.sections) {
+ break
+ }
+ have := &sh.SectionHeader
+ want := tt.sections[i]
+ if !reflect.DeepEqual(have, want) {
+ t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want)
+ }
+ }
+ tn := len(tt.sections)
+ fn := len(f.Sections)
+ if tn != fn {
+ t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn)
+ }
+ }
+
+ if tt.relocations != nil {
+ for i, sh := range f.Sections {
+ have := sh.Relocs
+ want := tt.relocations[sh.Name]
+ if !reflect.DeepEqual(have, want) {
+ t.Errorf("open %s, relocations in section %d (%s):\n\thave %#v\n\twant %#v\n", tt.file, i, sh.Name, have, want)
+ }
+ }
+ }
+ }
+}
+
+func TestOpenFailure(t *testing.T) {
+ filename := "file.go" // not a Mach-O file
+ _, err := Open(filename) // don't crash
+ if err == nil {
+ t.Errorf("open %s: succeeded unexpectedly", filename)
+ }
+}
+
+func TestOpenFat(t *testing.T) {
+ ff, err := openFatObscured("testdata/fat-gcc-386-amd64-darwin-exec.base64")
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ if ff.Magic != MagicFat {
+ t.Errorf("OpenFat: got magic number %#x, want %#x", ff.Magic, MagicFat)
+ }
+ if len(ff.Arches) != 2 {
+ t.Errorf("OpenFat: got %d architectures, want 2", len(ff.Arches))
+ }
+
+ for i := range ff.Arches {
+ arch := &ff.Arches[i]
+ ftArch := &fileTests[i]
+
+ if arch.Cpu != ftArch.hdr.Cpu || arch.SubCpu != ftArch.hdr.SubCpu {
+ t.Errorf("OpenFat: architecture #%d got cpu=%#x subtype=%#x, expected cpu=%#x, subtype=%#x", i, arch.Cpu, arch.SubCpu, ftArch.hdr.Cpu, ftArch.hdr.SubCpu)
+ }
+
+ if !reflect.DeepEqual(arch.FileHeader, ftArch.hdr) {
+ t.Errorf("OpenFat header:\n\tgot %#v\n\twant %#v\n", arch.FileHeader, ftArch.hdr)
+ }
+ }
+}
+
+func TestOpenFatFailure(t *testing.T) {
+ filename := "file.go" // not a Mach-O file
+ if _, err := OpenFat(filename); err == nil {
+ t.Errorf("OpenFat %s: succeeded unexpectedly", filename)
+ }
+
+ filename = "testdata/gcc-386-darwin-exec.base64" // not a fat Mach-O
+ ff, err := openFatObscured(filename)
+ if err != ErrNotFat {
+ t.Errorf("OpenFat %s: got %v, want ErrNotFat", filename, err)
+ }
+ if ff != nil {
+ t.Errorf("OpenFat %s: got %v, want nil", filename, ff)
+ }
+}
+
+func TestRelocTypeString(t *testing.T) {
+ if X86_64_RELOC_BRANCH.String() != "X86_64_RELOC_BRANCH" {
+ t.Errorf("got %v, want %v", X86_64_RELOC_BRANCH.String(), "X86_64_RELOC_BRANCH")
+ }
+ if X86_64_RELOC_BRANCH.GoString() != "macho.X86_64_RELOC_BRANCH" {
+ t.Errorf("got %v, want %v", X86_64_RELOC_BRANCH.GoString(), "macho.X86_64_RELOC_BRANCH")
+ }
+}
+
+func TestTypeString(t *testing.T) {
+ if TypeExec.String() != "Exec" {
+ t.Errorf("got %v, want %v", TypeExec.String(), "Exec")
+ }
+ if TypeExec.GoString() != "macho.Exec" {
+ t.Errorf("got %v, want %v", TypeExec.GoString(), "macho.Exec")
+ }
+}
+
+func TestOpenBadDysymCmd(t *testing.T) {
+ _, err := openObscured("testdata/gcc-amd64-darwin-exec-with-bad-dysym.base64")
+ if err == nil {
+ t.Fatal("openObscured did not fail when opening a file with an invalid dynamic symbol table command")
+ }
+}
diff --git a/src/debug/macho/macho.go b/src/debug/macho/macho.go
new file mode 100644
index 0000000..9fa9f95
--- /dev/null
+++ b/src/debug/macho/macho.go
@@ -0,0 +1,341 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Mach-O header data structures
+// Originally at:
+// http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/MachORuntime/Reference/reference.html (since deleted by Apple)
+// Archived copy at:
+// https://web.archive.org/web/20090819232456/http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORuntime/index.html
+// For cloned PDF see:
+// https://github.com/aidansteele/osx-abi-macho-file-format-reference
+
+package macho
+
+import "strconv"
+
+// A FileHeader represents a Mach-O file header.
+type FileHeader struct {
+ Magic uint32
+ Cpu Cpu
+ SubCpu uint32
+ Type Type
+ Ncmd uint32
+ Cmdsz uint32
+ Flags uint32
+}
+
+const (
+ fileHeaderSize32 = 7 * 4
+ fileHeaderSize64 = 8 * 4
+)
+
+const (
+ Magic32 uint32 = 0xfeedface
+ Magic64 uint32 = 0xfeedfacf
+ MagicFat uint32 = 0xcafebabe
+)
+
+// A Type is the Mach-O file type, e.g. an object file, executable, or dynamic library.
+type Type uint32
+
+const (
+ TypeObj Type = 1
+ TypeExec Type = 2
+ TypeDylib Type = 6
+ TypeBundle Type = 8
+)
+
+var typeStrings = []intName{
+ {uint32(TypeObj), "Obj"},
+ {uint32(TypeExec), "Exec"},
+ {uint32(TypeDylib), "Dylib"},
+ {uint32(TypeBundle), "Bundle"},
+}
+
+func (t Type) String() string { return stringName(uint32(t), typeStrings, false) }
+func (t Type) GoString() string { return stringName(uint32(t), typeStrings, true) }
+
+// A Cpu is a Mach-O cpu type.
+type Cpu uint32
+
+const cpuArch64 = 0x01000000
+
+const (
+ Cpu386 Cpu = 7
+ CpuAmd64 Cpu = Cpu386 | cpuArch64
+ CpuArm Cpu = 12
+ CpuArm64 Cpu = CpuArm | cpuArch64
+ CpuPpc Cpu = 18
+ CpuPpc64 Cpu = CpuPpc | cpuArch64
+)
+
+var cpuStrings = []intName{
+ {uint32(Cpu386), "Cpu386"},
+ {uint32(CpuAmd64), "CpuAmd64"},
+ {uint32(CpuArm), "CpuArm"},
+ {uint32(CpuArm64), "CpuArm64"},
+ {uint32(CpuPpc), "CpuPpc"},
+ {uint32(CpuPpc64), "CpuPpc64"},
+}
+
+func (i Cpu) String() string { return stringName(uint32(i), cpuStrings, false) }
+func (i Cpu) GoString() string { return stringName(uint32(i), cpuStrings, true) }
+
+// 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)
+ LoadCmdSegment64 LoadCmd = 0x19
+ LoadCmdRpath LoadCmd = 0x8000001c
+)
+
+var cmdStrings = []intName{
+ {uint32(LoadCmdSegment), "LoadCmdSegment"},
+ {uint32(LoadCmdThread), "LoadCmdThread"},
+ {uint32(LoadCmdUnixThread), "LoadCmdUnixThread"},
+ {uint32(LoadCmdDylib), "LoadCmdDylib"},
+ {uint32(LoadCmdSegment64), "LoadCmdSegment64"},
+ {uint32(LoadCmdRpath), "LoadCmdRpath"},
+}
+
+func (i LoadCmd) String() string { return stringName(uint32(i), cmdStrings, false) }
+func (i LoadCmd) GoString() string { return stringName(uint32(i), cmdStrings, true) }
+
+type (
+ // A Segment32 is a 32-bit Mach-O segment load command.
+ Segment32 struct {
+ Cmd LoadCmd
+ Len uint32
+ Name [16]byte
+ Addr uint32
+ Memsz uint32
+ Offset uint32
+ Filesz uint32
+ Maxprot uint32
+ Prot uint32
+ Nsect uint32
+ Flag uint32
+ }
+
+ // A Segment64 is a 64-bit Mach-O segment load command.
+ Segment64 struct {
+ Cmd LoadCmd
+ Len uint32
+ Name [16]byte
+ Addr uint64
+ Memsz uint64
+ Offset uint64
+ Filesz uint64
+ Maxprot uint32
+ Prot uint32
+ Nsect uint32
+ Flag uint32
+ }
+
+ // A SymtabCmd is a Mach-O symbol table command.
+ SymtabCmd struct {
+ Cmd LoadCmd
+ Len uint32
+ Symoff uint32
+ Nsyms uint32
+ Stroff uint32
+ Strsize uint32
+ }
+
+ // A DysymtabCmd is a Mach-O dynamic symbol table command.
+ DysymtabCmd struct {
+ Cmd 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 DylibCmd is a Mach-O load dynamic library command.
+ DylibCmd struct {
+ Cmd LoadCmd
+ Len uint32
+ Name uint32
+ Time uint32
+ CurrentVersion uint32
+ CompatVersion uint32
+ }
+
+ // A RpathCmd is a Mach-O rpath command.
+ RpathCmd struct {
+ Cmd LoadCmd
+ Len uint32
+ Path uint32
+ }
+
+ // A Thread is a Mach-O thread state command.
+ Thread struct {
+ Cmd LoadCmd
+ Len uint32
+ Type uint32
+ Data []uint32
+ }
+)
+
+const (
+ FlagNoUndefs uint32 = 0x1
+ FlagIncrLink uint32 = 0x2
+ FlagDyldLink uint32 = 0x4
+ FlagBindAtLoad uint32 = 0x8
+ FlagPrebound uint32 = 0x10
+ FlagSplitSegs uint32 = 0x20
+ FlagLazyInit uint32 = 0x40
+ FlagTwoLevel uint32 = 0x80
+ FlagForceFlat uint32 = 0x100
+ FlagNoMultiDefs uint32 = 0x200
+ FlagNoFixPrebinding uint32 = 0x400
+ FlagPrebindable uint32 = 0x800
+ FlagAllModsBound uint32 = 0x1000
+ FlagSubsectionsViaSymbols uint32 = 0x2000
+ FlagCanonical uint32 = 0x4000
+ FlagWeakDefines uint32 = 0x8000
+ FlagBindsToWeak uint32 = 0x10000
+ FlagAllowStackExecution uint32 = 0x20000
+ FlagRootSafe uint32 = 0x40000
+ FlagSetuidSafe uint32 = 0x80000
+ FlagNoReexportedDylibs uint32 = 0x100000
+ FlagPIE uint32 = 0x200000
+ FlagDeadStrippableDylib uint32 = 0x400000
+ FlagHasTLVDescriptors uint32 = 0x800000
+ FlagNoHeapExecution uint32 = 0x1000000
+ FlagAppExtensionSafe uint32 = 0x2000000
+)
+
+// A Section32 is a 32-bit Mach-O section header.
+type Section32 struct {
+ Name [16]byte
+ Seg [16]byte
+ Addr uint32
+ Size uint32
+ Offset uint32
+ Align uint32
+ Reloff uint32
+ Nreloc uint32
+ Flags uint32
+ Reserve1 uint32
+ Reserve2 uint32
+}
+
+// A Section64 is a 64-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 uint32
+ Reserve1 uint32
+ Reserve2 uint32
+ Reserve3 uint32
+}
+
+// An Nlist32 is a Mach-O 32-bit symbol table entry.
+type Nlist32 struct {
+ Name uint32
+ Type uint8
+ Sect uint8
+ Desc uint16
+ Value uint32
+}
+
+// An Nlist64 is a Mach-O 64-bit symbol table entry.
+type Nlist64 struct {
+ Name uint32
+ Type uint8
+ Sect uint8
+ Desc uint16
+ Value uint64
+}
+
+// Regs386 is the Mach-O 386 register structure.
+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
+}
+
+// RegsAMD64 is the Mach-O AMD64 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
+}
+
+type intName struct {
+ i uint32
+ s string
+}
+
+func stringName(i uint32, names []intName, goSyntax bool) string {
+ for _, n := range names {
+ if n.i == i {
+ if goSyntax {
+ return "macho." + n.s
+ }
+ return n.s
+ }
+ }
+ return strconv.FormatUint(uint64(i), 10)
+}
diff --git a/src/debug/macho/reloctype.go b/src/debug/macho/reloctype.go
new file mode 100644
index 0000000..496dfce
--- /dev/null
+++ b/src/debug/macho/reloctype.go
@@ -0,0 +1,72 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package macho
+
+//go:generate stringer -type=RelocTypeGeneric,RelocTypeX86_64,RelocTypeARM,RelocTypeARM64 -output reloctype_string.go
+
+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 (r RelocTypeGeneric) GoString() string { return "macho." + r.String() }
+
+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 (r RelocTypeX86_64) GoString() string { return "macho." + r.String() }
+
+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 (r RelocTypeARM) GoString() string { return "macho." + r.String() }
+
+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 (r RelocTypeARM64) GoString() string { return "macho." + r.String() }
diff --git a/src/debug/macho/reloctype_string.go b/src/debug/macho/reloctype_string.go
new file mode 100644
index 0000000..9c2b131
--- /dev/null
+++ b/src/debug/macho/reloctype_string.go
@@ -0,0 +1,49 @@
+// Code generated by "stringer -type=RelocTypeGeneric,RelocTypeX86_64,RelocTypeARM,RelocTypeARM64 -output reloctype_string.go"; DO NOT EDIT.
+
+package macho
+
+import "strconv"
+
+const _RelocTypeGeneric_name = "GENERIC_RELOC_VANILLAGENERIC_RELOC_PAIRGENERIC_RELOC_SECTDIFFGENERIC_RELOC_PB_LA_PTRGENERIC_RELOC_LOCAL_SECTDIFFGENERIC_RELOC_TLV"
+
+var _RelocTypeGeneric_index = [...]uint8{0, 21, 39, 61, 84, 112, 129}
+
+func (i RelocTypeGeneric) String() string {
+ if i < 0 || i >= RelocTypeGeneric(len(_RelocTypeGeneric_index)-1) {
+ return "RelocTypeGeneric(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+ return _RelocTypeGeneric_name[_RelocTypeGeneric_index[i]:_RelocTypeGeneric_index[i+1]]
+}
+
+const _RelocTypeX86_64_name = "X86_64_RELOC_UNSIGNEDX86_64_RELOC_SIGNEDX86_64_RELOC_BRANCHX86_64_RELOC_GOT_LOADX86_64_RELOC_GOTX86_64_RELOC_SUBTRACTORX86_64_RELOC_SIGNED_1X86_64_RELOC_SIGNED_2X86_64_RELOC_SIGNED_4X86_64_RELOC_TLV"
+
+var _RelocTypeX86_64_index = [...]uint8{0, 21, 40, 59, 80, 96, 119, 140, 161, 182, 198}
+
+func (i RelocTypeX86_64) String() string {
+ if i < 0 || i >= RelocTypeX86_64(len(_RelocTypeX86_64_index)-1) {
+ return "RelocTypeX86_64(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+ return _RelocTypeX86_64_name[_RelocTypeX86_64_index[i]:_RelocTypeX86_64_index[i+1]]
+}
+
+const _RelocTypeARM_name = "ARM_RELOC_VANILLAARM_RELOC_PAIRARM_RELOC_SECTDIFFARM_RELOC_LOCAL_SECTDIFFARM_RELOC_PB_LA_PTRARM_RELOC_BR24ARM_THUMB_RELOC_BR22ARM_THUMB_32BIT_BRANCHARM_RELOC_HALFARM_RELOC_HALF_SECTDIFF"
+
+var _RelocTypeARM_index = [...]uint8{0, 17, 31, 49, 73, 92, 106, 126, 148, 162, 185}
+
+func (i RelocTypeARM) String() string {
+ if i < 0 || i >= RelocTypeARM(len(_RelocTypeARM_index)-1) {
+ return "RelocTypeARM(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+ return _RelocTypeARM_name[_RelocTypeARM_index[i]:_RelocTypeARM_index[i+1]]
+}
+
+const _RelocTypeARM64_name = "ARM64_RELOC_UNSIGNEDARM64_RELOC_SUBTRACTORARM64_RELOC_BRANCH26ARM64_RELOC_PAGE21ARM64_RELOC_PAGEOFF12ARM64_RELOC_GOT_LOAD_PAGE21ARM64_RELOC_GOT_LOAD_PAGEOFF12ARM64_RELOC_POINTER_TO_GOTARM64_RELOC_TLVP_LOAD_PAGE21ARM64_RELOC_TLVP_LOAD_PAGEOFF12ARM64_RELOC_ADDEND"
+
+var _RelocTypeARM64_index = [...]uint16{0, 20, 42, 62, 80, 101, 128, 158, 184, 212, 243, 261}
+
+func (i RelocTypeARM64) String() string {
+ if i < 0 || i >= RelocTypeARM64(len(_RelocTypeARM64_index)-1) {
+ return "RelocTypeARM64(" + strconv.FormatInt(int64(i), 10) + ")"
+ }
+ return _RelocTypeARM64_name[_RelocTypeARM64_index[i]:_RelocTypeARM64_index[i+1]]
+}
diff --git a/src/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64 b/src/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64
new file mode 100644
index 0000000..64047f1
--- /dev/null
+++ b/src/debug/macho/testdata/clang-386-darwin-exec-with-rpath.base64
@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/clang-386-darwin.obj.base64 b/src/debug/macho/testdata/clang-386-darwin.obj.base64
new file mode 100644
index 0000000..60a0765
--- /dev/null
+++ b/src/debug/macho/testdata/clang-386-darwin.obj.base64
@@ -0,0 +1 @@
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
diff --git a/src/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64 b/src/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64
new file mode 100644
index 0000000..2682181
--- /dev/null
+++ b/src/debug/macho/testdata/clang-amd64-darwin-exec-with-rpath.base64
@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/clang-amd64-darwin.obj.base64 b/src/debug/macho/testdata/clang-amd64-darwin.obj.base64
new file mode 100644
index 0000000..b8f1fce
--- /dev/null
+++ b/src/debug/macho/testdata/clang-amd64-darwin.obj.base64
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diff --git a/src/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base64 b/src/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec.base64
new file mode 100644
index 0000000..407d977
--- /dev/null
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@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/gcc-386-darwin-exec.base64 b/src/debug/macho/testdata/gcc-386-darwin-exec.base64
new file mode 100644
index 0000000..5e40ed6
--- /dev/null
+++ b/src/debug/macho/testdata/gcc-386-darwin-exec.base64
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diff --git a/src/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base64 b/src/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base64
new file mode 100644
index 0000000..8884566
--- /dev/null
+++ b/src/debug/macho/testdata/gcc-amd64-darwin-exec-debug.base64
@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/gcc-amd64-darwin-exec-with-bad-dysym.base64 b/src/debug/macho/testdata/gcc-amd64-darwin-exec-with-bad-dysym.base64
new file mode 100644
index 0000000..8e04366
--- /dev/null
+++ b/src/debug/macho/testdata/gcc-amd64-darwin-exec-with-bad-dysym.base64
@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/gcc-amd64-darwin-exec.base64 b/src/debug/macho/testdata/gcc-amd64-darwin-exec.base64
new file mode 100644
index 0000000..b48ae56
--- /dev/null
+++ b/src/debug/macho/testdata/gcc-amd64-darwin-exec.base64
@@ -0,0 +1 @@
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diff --git a/src/debug/macho/testdata/hello.c b/src/debug/macho/testdata/hello.c
new file mode 100644
index 0000000..a689d36
--- /dev/null
+++ b/src/debug/macho/testdata/hello.c
@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int
+main(void)
+{
+ printf("hello, world\n");
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 03:56:44 +0000