diff options
author | Ian Lance Taylor <iant@google.com> | 2011-01-21 18:19:03 +0000 |
---|---|---|
committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2011-01-21 18:19:03 +0000 |
commit | ff5f50c52c421d75940ef9392211e3ab24d71332 (patch) | |
tree | 27d8768fb1d25696d3c40b42535eb5e073c278da /libgo/go/debug | |
parent | d6ed1c8903e728f4233122554bab5910853338bd (diff) | |
download | gcc-ff5f50c52c421d75940ef9392211e3ab24d71332.zip gcc-ff5f50c52c421d75940ef9392211e3ab24d71332.tar.gz gcc-ff5f50c52c421d75940ef9392211e3ab24d71332.tar.bz2 |
Remove the types float and complex.
Update to current version of Go library.
Update testsuite for removed types.
* go-lang.c (go_langhook_init): Omit float_type_size when calling
go_create_gogo.
* go-c.h: Update declaration of go_create_gogo.
From-SVN: r169098
Diffstat (limited to 'libgo/go/debug')
-rw-r--r-- | libgo/go/debug/dwarf/testdata/typedef.c | 7 | ||||
-rwxr-xr-x | libgo/go/debug/dwarf/testdata/typedef.elf | bin | 11546 -> 10837 bytes | |||
-rw-r--r-- | libgo/go/debug/dwarf/testdata/typedef.macho | bin | 4608 -> 5256 bytes | |||
-rw-r--r-- | libgo/go/debug/dwarf/type_test.go | 33 | ||||
-rw-r--r-- | libgo/go/debug/elf/elf.go | 9 | ||||
-rw-r--r-- | libgo/go/debug/elf/file.go | 161 | ||||
-rw-r--r-- | libgo/go/debug/macho/file.go | 157 | ||||
-rw-r--r-- | libgo/go/debug/macho/macho.go | 80 | ||||
-rw-r--r-- | libgo/go/debug/pe/file.go | 78 | ||||
-rw-r--r-- | libgo/go/debug/pe/file_test.go | 4 | ||||
-rw-r--r-- | libgo/go/debug/proc/proc_nacl.go | 20 | ||||
-rw-r--r-- | libgo/go/debug/proc/regs_nacl_386.go | 5 |
12 files changed, 489 insertions, 65 deletions
diff --git a/libgo/go/debug/dwarf/testdata/typedef.c b/libgo/go/debug/dwarf/testdata/typedef.c index 2ceb00c..664d021 100644 --- a/libgo/go/debug/dwarf/testdata/typedef.c +++ b/libgo/go/debug/dwarf/testdata/typedef.c @@ -9,6 +9,7 @@ gcc -gdwarf-2 -m64 -c typedef.c && gcc -gdwarf-2 -m64 -o typedef.elf typedef.o OS X Mach-O: gcc -gdwarf-2 -m64 -c typedef.c -o typedef.macho */ +#include <complex.h> typedef volatile int* t_ptr_volatile_int; typedef const char *t_ptr_const_char; @@ -16,6 +17,9 @@ typedef long t_long; typedef unsigned short t_ushort; typedef int t_func_int_of_float_double(float, double); typedef int (*t_ptr_func_int_of_float_double)(float, double); +typedef int (*t_ptr_func_int_of_float_complex)(float complex); +typedef int (*t_ptr_func_int_of_double_complex)(double complex); +typedef int (*t_ptr_func_int_of_long_double_complex)(long double complex); typedef int *t_func_ptr_int_of_char_schar_uchar(char, signed char, unsigned char); typedef void t_func_void_of_char(char); typedef void t_func_void_of_void(void); @@ -65,6 +69,9 @@ t_my_union *a12a; t_my_enum *a13; t_my_list *a14; t_my_tree *a15; +t_ptr_func_int_of_float_complex *a16; +t_ptr_func_int_of_double_complex *a17; +t_ptr_func_int_of_long_double_complex *a18; int main() { diff --git a/libgo/go/debug/dwarf/testdata/typedef.elf b/libgo/go/debug/dwarf/testdata/typedef.elf Binary files differindex ea9291f..44df8da 100755 --- a/libgo/go/debug/dwarf/testdata/typedef.elf +++ b/libgo/go/debug/dwarf/testdata/typedef.elf diff --git a/libgo/go/debug/dwarf/testdata/typedef.macho b/libgo/go/debug/dwarf/testdata/typedef.macho Binary files differindex bf1dfd2..41019c1 100644 --- a/libgo/go/debug/dwarf/testdata/typedef.macho +++ b/libgo/go/debug/dwarf/testdata/typedef.macho diff --git a/libgo/go/debug/dwarf/type_test.go b/libgo/go/debug/dwarf/type_test.go index 6c2daaa..e01f735 100644 --- a/libgo/go/debug/dwarf/type_test.go +++ b/libgo/go/debug/dwarf/type_test.go @@ -12,21 +12,24 @@ import ( ) var typedefTests = map[string]string{ - "t_ptr_volatile_int": "*volatile int", - "t_ptr_const_char": "*const char", - "t_long": "long int", - "t_ushort": "short unsigned int", - "t_func_int_of_float_double": "func(float, double) int", - "t_ptr_func_int_of_float_double": "*func(float, double) int", - "t_func_ptr_int_of_char_schar_uchar": "func(char, signed char, unsigned char) *int", - "t_func_void_of_char": "func(char) void", - "t_func_void_of_void": "func() void", - "t_func_void_of_ptr_char_dots": "func(*char, ...) void", - "t_my_struct": "struct my_struct {vi volatile int@0; x char@4 : 1@7; y int@4 : 4@27; array [40]long long int@8}", - "t_my_union": "union my_union {vi volatile int@0; x char@0 : 1@7; y int@0 : 4@28; array [40]long long int@0}", - "t_my_enum": "enum my_enum {e1=1; e2=2; e3=-5; e4=1000000000000000}", - "t_my_list": "struct list {val short int@0; next *t_my_list@8}", - "t_my_tree": "struct tree {left *struct tree@0; right *struct tree@8; val long long unsigned int@16}", + "t_ptr_volatile_int": "*volatile int", + "t_ptr_const_char": "*const char", + "t_long": "long int", + "t_ushort": "short unsigned int", + "t_func_int_of_float_double": "func(float, double) int", + "t_ptr_func_int_of_float_double": "*func(float, double) int", + "t_ptr_func_int_of_float_complex": "*func(complex float) int", + "t_ptr_func_int_of_double_complex": "*func(complex double) int", + "t_ptr_func_int_of_long_double_complex": "*func(complex long double) int", + "t_func_ptr_int_of_char_schar_uchar": "func(char, signed char, unsigned char) *int", + "t_func_void_of_char": "func(char) void", + "t_func_void_of_void": "func() void", + "t_func_void_of_ptr_char_dots": "func(*char, ...) void", + "t_my_struct": "struct my_struct {vi volatile int@0; x char@4 : 1@7; y int@4 : 4@27; array [40]long long int@8}", + "t_my_union": "union my_union {vi volatile int@0; x char@0 : 1@7; y int@0 : 4@28; array [40]long long int@0}", + "t_my_enum": "enum my_enum {e1=1; e2=2; e3=-5; e4=1000000000000000}", + "t_my_list": "struct list {val short int@0; next *t_my_list@8}", + "t_my_tree": "struct tree {left *struct tree@0; right *struct tree@8; val long long unsigned int@16}", } func elfData(t *testing.T, name string) *Data { diff --git a/libgo/go/debug/elf/elf.go b/libgo/go/debug/elf/elf.go index 46d618c..74e9799 100644 --- a/libgo/go/debug/elf/elf.go +++ b/libgo/go/debug/elf/elf.go @@ -1356,9 +1356,12 @@ type Sym32 struct { const Sym32Size = 16 -func ST_BIND(info uint8) SymBind { return SymBind(info >> 4) } -func ST_TYPE(bind SymBind, typ SymType) uint8 { return uint8(bind)<<4 | uint8(typ)&0xf } -func ST_VISIBILITY(other uint8) SymVis { return SymVis(other & 3) } +func ST_BIND(info uint8) SymBind { return SymBind(info >> 4) } +func ST_TYPE(info uint8) SymType { return SymType(info & 0xF) } +func ST_INFO(bind SymBind, typ SymType) uint8 { + return uint8(bind)<<4 | uint8(typ)&0xf +} +func ST_VISIBILITY(other uint8) SymVis { return SymVis(other & 3) } /* * ELF64 diff --git a/libgo/go/debug/elf/file.go b/libgo/go/debug/elf/file.go index 568370b..e69317a 100644 --- a/libgo/go/debug/elf/file.go +++ b/libgo/go/debug/elf/file.go @@ -75,6 +75,15 @@ func (s *Section) Data() ([]byte, os.Error) { return dat[0:n], err } +// stringTable reads and returns the string table given by the +// specified link value. +func (f *File) stringTable(link uint32) ([]byte, os.Error) { + if link <= 0 || link >= uint32(len(f.Sections)) { + return nil, os.ErrorString("section has invalid string table link") + } + return f.Sections[link].Data() +} + // Open returns a new ReadSeeker reading the ELF section. func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } @@ -108,9 +117,9 @@ func (p *Prog) Open() io.ReadSeeker { return io.NewSectionReader(p.sr, 0, 1<<63- // A Symbol represents an entry in an ELF symbol table section. type Symbol struct { - Name uint32 + Name string Info, Other byte - Section uint32 + Section SectionIndex Value, Size uint64 } @@ -160,6 +169,17 @@ func (f *File) Close() os.Error { return err } +// SectionByType returns the first section in f with the +// given type, or nil if there is no such section. +func (f *File) SectionByType(typ SectionType) *Section { + for _, s := range f.Sections { + if s.Type == typ { + return s + } + } + return nil +} + // NewFile creates a new File for accessing an ELF binary in an underlying reader. // The ELF binary is expected to start at position 0 in the ReaderAt. func NewFile(r io.ReaderAt) (*File, os.Error) { @@ -293,9 +313,8 @@ func NewFile(r io.ReaderAt) (*File, os.Error) { } // Load section header string table. - s := f.Sections[shstrndx] - shstrtab := make([]byte, s.Size) - if _, err := r.ReadAt(shstrtab, int64(s.Offset)); err != nil { + shstrtab, err := f.Sections[shstrndx].Data() + if err != nil { return nil, err } for i, s := range f.Sections { @@ -309,25 +328,65 @@ func NewFile(r io.ReaderAt) (*File, os.Error) { return f, nil } -func (f *File) getSymbols() ([]Symbol, os.Error) { +// getSymbols returns a slice of Symbols from parsing the symbol table +// with the given type. +func (f *File) getSymbols(typ SectionType) ([]Symbol, os.Error) { switch f.Class { case ELFCLASS64: - return f.getSymbols64() + return f.getSymbols64(typ) + + case ELFCLASS32: + return f.getSymbols32(typ) } return nil, os.ErrorString("not implemented") } -// GetSymbols returns a slice of Symbols from parsing the symbol table. -func (f *File) getSymbols64() ([]Symbol, os.Error) { - var symtabSection *Section - for _, section := range f.Sections { - if section.Type == SHT_SYMTAB { - symtabSection = section - break - } +func (f *File) getSymbols32(typ SectionType) ([]Symbol, os.Error) { + symtabSection := f.SectionByType(typ) + if symtabSection == nil { + return nil, os.ErrorString("no symbol section") + } + + data, err := symtabSection.Data() + if err != nil { + return nil, os.ErrorString("cannot load symbol section") + } + symtab := bytes.NewBuffer(data) + if symtab.Len()%Sym32Size != 0 { + return nil, os.ErrorString("length of symbol section is not a multiple of SymSize") + } + + strdata, err := f.stringTable(symtabSection.Link) + if err != nil { + return nil, os.ErrorString("cannot load string table section") + } + + // The first entry is all zeros. + var skip [Sym32Size]byte + symtab.Read(skip[0:]) + + symbols := make([]Symbol, symtab.Len()/Sym32Size) + + i := 0 + var sym Sym32 + for symtab.Len() > 0 { + binary.Read(symtab, f.ByteOrder, &sym) + str, _ := getString(strdata, int(sym.Name)) + symbols[i].Name = str + symbols[i].Info = sym.Info + symbols[i].Other = sym.Other + symbols[i].Section = SectionIndex(sym.Shndx) + symbols[i].Value = uint64(sym.Value) + symbols[i].Size = uint64(sym.Size) + i++ } + return symbols, nil +} + +func (f *File) getSymbols64(typ SectionType) ([]Symbol, os.Error) { + symtabSection := f.SectionByType(typ) if symtabSection == nil { return nil, os.ErrorString("no symbol section") } @@ -341,6 +400,11 @@ func (f *File) getSymbols64() ([]Symbol, os.Error) { return nil, os.ErrorString("length of symbol section is not a multiple of Sym64Size") } + strdata, err := f.stringTable(symtabSection.Link) + if err != nil { + return nil, os.ErrorString("cannot load string table section") + } + // The first entry is all zeros. var skip [Sym64Size]byte symtab.Read(skip[0:]) @@ -351,10 +415,11 @@ func (f *File) getSymbols64() ([]Symbol, os.Error) { var sym Sym64 for symtab.Len() > 0 { binary.Read(symtab, f.ByteOrder, &sym) - symbols[i].Name = sym.Name + str, _ := getString(strdata, int(sym.Name)) + symbols[i].Name = str symbols[i].Info = sym.Info symbols[i].Other = sym.Other - symbols[i].Section = uint32(sym.Shndx) + symbols[i].Section = SectionIndex(sym.Shndx) symbols[i].Value = sym.Value symbols[i].Size = sym.Size i++ @@ -403,7 +468,7 @@ func (f *File) applyRelocationsAMD64(dst []byte, rels []byte) os.Error { return os.ErrorString("length of relocation section is not a multiple of Sym64Size") } - symbols, err := f.getSymbols() + symbols, err := f.getSymbols(SHT_SYMTAB) if err != nil { return err } @@ -478,3 +543,63 @@ func (f *File) DWARF() (*dwarf.Data, os.Error) { abbrev, info, str := dat[0], dat[1], dat[2] return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) } + +// 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. +// It does not return weak symbols. +func (f *File) ImportedSymbols() ([]string, os.Error) { + sym, err := f.getSymbols(SHT_DYNSYM) + if err != nil { + return nil, err + } + var all []string + for _, s := range sym { + if ST_BIND(s.Info) == STB_GLOBAL && s.Section == SHN_UNDEF { + all = append(all, s.Name) + } + } + return all, nil +} + +// ImportedLibraries returns the names 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, os.Error) { + ds := f.SectionByType(SHT_DYNAMIC) + if ds == nil { + // not dynamic, so no libraries + return nil, nil + } + d, err := ds.Data() + if err != nil { + return nil, err + } + str, err := f.stringTable(ds.Link) + if err != nil { + return nil, err + } + var all []string + for len(d) > 0 { + var tag DynTag + var value uint64 + switch f.Class { + case ELFCLASS32: + tag = DynTag(f.ByteOrder.Uint32(d[0:4])) + value = uint64(f.ByteOrder.Uint32(d[4:8])) + d = d[8:] + case ELFCLASS64: + tag = DynTag(f.ByteOrder.Uint64(d[0:8])) + value = f.ByteOrder.Uint64(d[8:16]) + d = d[16:] + } + if tag == DT_NEEDED { + s, ok := getString(str, int(value)) + if ok { + all = append(all, s) + } + } + } + + return all, nil +} diff --git a/libgo/go/debug/macho/file.go b/libgo/go/debug/macho/file.go index d280226..fd8da94 100644 --- a/libgo/go/debug/macho/file.go +++ b/libgo/go/debug/macho/file.go @@ -24,6 +24,9 @@ type File struct { Loads []Load Sections []*Section + Symtab *Symtab + Dysymtab *Dysymtab + closer io.Closer } @@ -112,6 +115,28 @@ func (s *Section) Data() ([]byte, os.Error) { // 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 +} /* * Mach-O reader @@ -217,6 +242,71 @@ func NewFile(r io.ReaderAt) (*File, os.Error) { default: f.Loads[i] = LoadBytes(cmddat) + case LoadCmdDylib: + var hdr DylibCmd + b := bytes.NewBuffer(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[i] = l + + case LoadCmdSymtab: + var hdr SymtabCmd + b := bytes.NewBuffer(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 := make([]byte, int(hdr.Nsyms)*symsz) + if _, err := r.ReadAt(symdat, int64(hdr.Symoff)); err != nil { + return nil, err + } + st, err := f.parseSymtab(symdat, strtab, cmddat, &hdr, offset) + if err != nil { + return nil, err + } + f.Loads[i] = st + f.Symtab = st + + case LoadCmdDysymtab: + var hdr DysymtabCmd + b := bytes.NewBuffer(cmddat) + if err := binary.Read(b, bo, &hdr); err != nil { + return nil, err + } + 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.NewBuffer(dat), bo, x); err != nil { + return nil, err + } + st := new(Dysymtab) + st.LoadBytes = LoadBytes(cmddat) + st.DysymtabCmd = hdr + st.IndirectSyms = x + f.Loads[i] = st + f.Dysymtab = st + case LoadCmdSegment: var seg32 Segment32 b := bytes.NewBuffer(cmddat) @@ -301,6 +391,43 @@ func NewFile(r io.ReaderAt) (*File, os.Error) { return f, nil } +func (f *File) parseSymtab(symdat, strtab, cmddat []byte, hdr *SymtabCmd, offset int64) (*Symtab, os.Error) { + bo := f.ByteOrder + symtab := make([]Symbol, hdr.Nsyms) + b := bytes.NewBuffer(symdat) + for i := range symtab { + 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) + } + sym := &symtab[i] + if n.Name >= uint32(len(strtab)) { + return nil, &FormatError{offset, "invalid name in symbol table", n.Name} + } + sym.Name = cstring(strtab[n.Name:]) + sym.Type = n.Type + sym.Sect = n.Sect + sym.Desc = n.Desc + sym.Value = n.Value + } + st := new(Symtab) + st.LoadBytes = LoadBytes(cmddat) + st.Syms = symtab + return st, nil +} + func (f *File) pushSection(sh *Section, r io.ReaderAt) { f.Sections = append(f.Sections, sh) sh.sr = io.NewSectionReader(r, int64(sh.Offset), int64(sh.Size)) @@ -358,3 +485,33 @@ func (f *File) DWARF() (*dwarf.Data, os.Error) { abbrev, info, str := dat[0], dat[1], dat[2] return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) } + +// 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, os.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, os.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/libgo/go/debug/macho/macho.go b/libgo/go/debug/macho/macho.go index a45d782..1386f5a 100644 --- a/libgo/go/debug/macho/macho.go +++ b/libgo/go/debug/macho/macho.go @@ -59,16 +59,21 @@ type LoadCmd uint32 const ( LoadCmdSegment LoadCmd = 1 - LoadCmdSegment64 LoadCmd = 25 + LoadCmdSymtab LoadCmd = 2 LoadCmdThread LoadCmd = 4 LoadCmdUnixThread LoadCmd = 5 // thread+stack + LoadCmdDysymtab LoadCmd = 11 + LoadCmdDylib LoadCmd = 12 + LoadCmdDylinker LoadCmd = 15 + LoadCmdSegment64 LoadCmd = 25 ) var cmdStrings = []intName{ {uint32(LoadCmdSegment), "LoadCmdSegment"}, - {uint32(LoadCmdSegment64), "LoadCmdSegment64"}, {uint32(LoadCmdThread), "LoadCmdThread"}, {uint32(LoadCmdUnixThread), "LoadCmdUnixThread"}, + {uint32(LoadCmdDylib), "LoadCmdDylib"}, + {uint32(LoadCmdSegment64), "LoadCmdSegment64"}, } func (i LoadCmd) String() string { return stringName(uint32(i), cmdStrings, false) } @@ -104,6 +109,16 @@ type Segment32 struct { Flag uint32 } +// A DylibCmd is a Mach-O load dynamic library command. +type DylibCmd struct { + Cmd LoadCmd + Len uint32 + Name uint32 + Time uint32 + CurrentVersion uint32 + CompatVersion uint32 +} + // A Section32 is a 32-bit Mach-O section header. type Section32 struct { Name [16]byte @@ -135,6 +150,67 @@ type Section64 struct { Reserve3 uint32 } +// A SymtabCmd is a Mach-O symbol table command. +type SymtabCmd struct { + Cmd LoadCmd + Len uint32 + Symoff uint32 + Nsyms uint32 + Stroff uint32 + Strsize uint32 +} + +// A DysymtabCmd is a Mach-O dynamic symbol table command. +type 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 +} + +// 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 +} + +// 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 +} + // A Thread is a Mach-O thread state command. type Thread struct { Cmd LoadCmd diff --git a/libgo/go/debug/pe/file.go b/libgo/go/debug/pe/file.go index 904d2f8..82c0240 100644 --- a/libgo/go/debug/pe/file.go +++ b/libgo/go/debug/pe/file.go @@ -49,6 +49,17 @@ type Section struct { sr *io.SectionReader } +type ImportDirectory struct { + OriginalFirstThunk uint32 + TimeDateStamp uint32 + ForwarderChain uint32 + Name uint32 + FirstThunk uint32 + + dll string + rva []uint32 +} + // Data reads and returns the contents of the PE section. func (s *Section) Data() ([]byte, os.Error) { dat := make([]byte, s.sr.Size()) @@ -229,3 +240,70 @@ func (f *File) DWARF() (*dwarf.Data, os.Error) { abbrev, info, str := dat[0], dat[1], dat[2] return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) } + +// 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. +// It does not return weak symbols. +func (f *File) ImportedSymbols() ([]string, os.Error) { + ds := f.Section(".idata") + if ds == nil { + // not dynamic, so no libraries + return nil, nil + } + d, err := ds.Data() + if err != nil { + return nil, err + } + var ida []ImportDirectory + for len(d) > 0 { + var dt ImportDirectory + dt.OriginalFirstThunk = binary.LittleEndian.Uint32(d[0:4]) + dt.Name = binary.LittleEndian.Uint32(d[12:16]) + dt.FirstThunk = binary.LittleEndian.Uint32(d[16:20]) + d = d[20:] + if dt.OriginalFirstThunk == 0 { + break + } + ida = append(ida, dt) + } + for i, _ := range ida { + for len(d) > 0 { + va := binary.LittleEndian.Uint32(d[0:4]) + d = d[4:] + if va == 0 { + break + } + ida[i].rva = append(ida[i].rva, va) + } + } + for _, _ = range ida { + for len(d) > 0 { + va := binary.LittleEndian.Uint32(d[0:4]) + d = d[4:] + if va == 0 { + break + } + } + } + names, _ := ds.Data() + var all []string + for _, dt := range ida { + dt.dll, _ = getString(names, int(dt.Name-ds.VirtualAddress)) + for _, va := range dt.rva { + fn, _ := getString(names, int(va-ds.VirtualAddress+2)) + all = append(all, fn+":"+dt.dll) + } + } + + return all, nil +} + +// ImportedLibraries returns the names 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, os.Error) { + // TODO + // cgo -dynimport don't use this for windows PE, so just return. + return nil, nil +} diff --git a/libgo/go/debug/pe/file_test.go b/libgo/go/debug/pe/file_test.go index c000c5f..2c5c25b 100644 --- a/libgo/go/debug/pe/file_test.go +++ b/libgo/go/debug/pe/file_test.go @@ -16,7 +16,7 @@ type fileTest struct { } var fileTests = []fileTest{ - fileTest{ + { "testdata/gcc-386-mingw-obj", FileHeader{0x014c, 0x000c, 0x0, 0x64a, 0x1e, 0x0, 0x104}, []*SectionHeader{ @@ -34,7 +34,7 @@ var fileTests = []fileTest{ &SectionHeader{".debug_aranges", 0, 0, 32, 1408, 1590, 0, 2, 0, 1108344832}, }, }, - fileTest{ + { "testdata/gcc-386-mingw-exec", FileHeader{0x014c, 0x000f, 0x4c6a1b60, 0x3c00, 0x282, 0xe0, 0x107}, []*SectionHeader{ diff --git a/libgo/go/debug/proc/proc_nacl.go b/libgo/go/debug/proc/proc_nacl.go deleted file mode 100644 index be26bbf..0000000 --- a/libgo/go/debug/proc/proc_nacl.go +++ /dev/null @@ -1,20 +0,0 @@ -// 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 proc - -import ( - "os" - "syscall" -) - -// Process tracing is not supported on Native Client. - -func Attach(pid int) (Process, os.Error) { - return nil, os.NewSyscallError("ptrace", syscall.ENACL) -} - -func ForkExec(argv0 string, argv []string, envv []string, dir string, fd []*os.File) (Process, os.Error) { - return nil, os.NewSyscallError("fork/exec", syscall.ENACL) -} diff --git a/libgo/go/debug/proc/regs_nacl_386.go b/libgo/go/debug/proc/regs_nacl_386.go deleted file mode 100644 index 60c9ac7..0000000 --- a/libgo/go/debug/proc/regs_nacl_386.go +++ /dev/null @@ -1,5 +0,0 @@ -// 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 proc |