#include "llvm/Object/MachO.h"
#include "llvm/ADT/Triple.h"
-#include "llvm/Object/MachOFormat.h"
-#include "llvm/Support/Casting.h"
#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
+#include "llvm/Support/Host.h"
#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
#include <cctype>
#include <cstring>
#include <limits>
namespace llvm {
namespace object {
-MachOObjectFileBase::MachOObjectFileBase(MemoryBuffer *Object, bool Is64bits,
- error_code &ec)
- : ObjectFile(getMachOType(true, Is64bits), Object) {
+struct nlist_base {
+ uint32_t n_strx;
+ uint8_t n_type;
+ uint8_t n_sect;
+ uint16_t n_desc;
+};
+
+struct section_base {
+ char sectname[16];
+ char segname[16];
+};
+
+template<typename T>
+static void SwapValue(T &Value) {
+ Value = sys::SwapByteOrder(Value);
}
-bool MachOObjectFileBase::is64Bit() const {
- return isa<MachOObjectFile<true> >(this);
+template<typename T>
+static void SwapStruct(T &Value);
+
+template<>
+void SwapStruct(MachO::any_relocation_info &H) {
+ SwapValue(H.r_word0);
+ SwapValue(H.r_word1);
}
-const MachOObjectFileBase::LoadCommand *
-MachOObjectFileBase::getLoadCommandInfo(unsigned Index) const {
- uint64_t Offset;
- uint64_t NewOffset = getHeaderSize();
- const LoadCommand *Load;
- unsigned I = 0;
- do {
- Offset = NewOffset;
- StringRef Data = getData(Offset, sizeof(LoadCommand));
- Load = reinterpret_cast<const LoadCommand*>(Data.data());
- NewOffset = Offset + Load->Size;
- ++I;
- } while (I != Index + 1);
+template<>
+void SwapStruct(MachO::load_command &L) {
+ SwapValue(L.cmd);
+ SwapValue(L.cmdsize);
+}
- return Load;
+template<>
+void SwapStruct(nlist_base &S) {
+ SwapValue(S.n_strx);
+ SwapValue(S.n_desc);
}
-void MachOObjectFileBase::ReadULEB128s(uint64_t Index,
- SmallVectorImpl<uint64_t> &Out) const {
- DataExtractor extractor(ObjectFile::getData(), true, 0);
+template<>
+void SwapStruct(MachO::section &S) {
+ SwapValue(S.addr);
+ SwapValue(S.size);
+ SwapValue(S.offset);
+ SwapValue(S.align);
+ SwapValue(S.reloff);
+ SwapValue(S.nreloc);
+ SwapValue(S.flags);
+ SwapValue(S.reserved1);
+ SwapValue(S.reserved2);
+}
- uint32_t offset = Index;
- uint64_t data = 0;
- while (uint64_t delta = extractor.getULEB128(&offset)) {
- data += delta;
- Out.push_back(data);
+template<>
+void SwapStruct(MachO::section_64 &S) {
+ SwapValue(S.addr);
+ SwapValue(S.size);
+ SwapValue(S.offset);
+ SwapValue(S.align);
+ SwapValue(S.reloff);
+ SwapValue(S.nreloc);
+ SwapValue(S.flags);
+ SwapValue(S.reserved1);
+ SwapValue(S.reserved2);
+ SwapValue(S.reserved3);
+}
+
+template<>
+void SwapStruct(MachO::nlist &S) {
+ SwapValue(S.n_strx);
+ SwapValue(S.n_desc);
+ SwapValue(S.n_value);
+}
+
+template<>
+void SwapStruct(MachO::nlist_64 &S) {
+ SwapValue(S.n_strx);
+ SwapValue(S.n_desc);
+ SwapValue(S.n_value);
+}
+
+template<>
+void SwapStruct(MachO::mach_header &H) {
+ SwapValue(H.magic);
+ SwapValue(H.cputype);
+ SwapValue(H.cpusubtype);
+ SwapValue(H.filetype);
+ SwapValue(H.ncmds);
+ SwapValue(H.sizeofcmds);
+ SwapValue(H.flags);
+}
+
+template<>
+void SwapStruct(MachO::mach_header_64 &H) {
+ SwapValue(H.magic);
+ SwapValue(H.cputype);
+ SwapValue(H.cpusubtype);
+ SwapValue(H.filetype);
+ SwapValue(H.ncmds);
+ SwapValue(H.sizeofcmds);
+ SwapValue(H.flags);
+ SwapValue(H.reserved);
+}
+
+template<>
+void SwapStruct(MachO::symtab_command &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.symoff);
+ SwapValue(C.nsyms);
+ SwapValue(C.stroff);
+ SwapValue(C.strsize);
+}
+
+template<>
+void SwapStruct(MachO::dysymtab_command &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.ilocalsym);
+ SwapValue(C.nlocalsym);
+ SwapValue(C.iextdefsym);
+ SwapValue(C.nextdefsym);
+ SwapValue(C.iundefsym);
+ SwapValue(C.nundefsym);
+ SwapValue(C.tocoff);
+ SwapValue(C.ntoc);
+ SwapValue(C.modtaboff);
+ SwapValue(C.nmodtab);
+ SwapValue(C.extrefsymoff);
+ SwapValue(C.nextrefsyms);
+ SwapValue(C.indirectsymoff);
+ SwapValue(C.nindirectsyms);
+ SwapValue(C.extreloff);
+ SwapValue(C.nextrel);
+ SwapValue(C.locreloff);
+ SwapValue(C.nlocrel);
+}
+
+template<>
+void SwapStruct(MachO::linkedit_data_command &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.dataoff);
+ SwapValue(C.datasize);
+}
+
+template<>
+void SwapStruct(MachO::segment_command &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.vmaddr);
+ SwapValue(C.vmsize);
+ SwapValue(C.fileoff);
+ SwapValue(C.filesize);
+ SwapValue(C.maxprot);
+ SwapValue(C.initprot);
+ SwapValue(C.nsects);
+ SwapValue(C.flags);
+}
+
+template<>
+void SwapStruct(MachO::segment_command_64 &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.vmaddr);
+ SwapValue(C.vmsize);
+ SwapValue(C.fileoff);
+ SwapValue(C.filesize);
+ SwapValue(C.maxprot);
+ SwapValue(C.initprot);
+ SwapValue(C.nsects);
+ SwapValue(C.flags);
+}
+
+template<>
+void SwapStruct(uint32_t &C) {
+ SwapValue(C);
+}
+
+template<>
+void SwapStruct(MachO::linker_options_command &C) {
+ SwapValue(C.cmd);
+ SwapValue(C.cmdsize);
+ SwapValue(C.count);
+}
+
+template<>
+void SwapStruct(MachO::data_in_code_entry &C) {
+ SwapValue(C.offset);
+ SwapValue(C.length);
+ SwapValue(C.kind);
+}
+
+template<typename T>
+T getStruct(const MachOObjectFile *O, const char *P) {
+ T Cmd;
+ memcpy(&Cmd, P, sizeof(T));
+ if (O->isLittleEndian() != sys::IsLittleEndianHost)
+ SwapStruct(Cmd);
+ return Cmd;
+}
+
+static uint32_t
+getSegmentLoadCommandNumSections(const MachOObjectFile *O,
+ const MachOObjectFile::LoadCommandInfo &L) {
+ if (O->is64Bit()) {
+ MachO::segment_command_64 S = O->getSegment64LoadCommand(L);
+ return S.nsects;
}
+ MachO::segment_command S = O->getSegmentLoadCommand(L);
+ return S.nsects;
}
-const MachOObjectFileBase::Header *MachOObjectFileBase::getHeader() const {
- StringRef Data = getData(0, sizeof(Header));
- return reinterpret_cast<const Header*>(Data.data());
+static const char *
+getSectionPtr(const MachOObjectFile *O, MachOObjectFile::LoadCommandInfo L,
+ unsigned Sec) {
+ uintptr_t CommandAddr = reinterpret_cast<uintptr_t>(L.Ptr);
+
+ bool Is64 = O->is64Bit();
+ unsigned SegmentLoadSize = Is64 ? sizeof(MachO::segment_command_64) :
+ sizeof(MachO::segment_command);
+ unsigned SectionSize = Is64 ? sizeof(MachO::section_64) :
+ sizeof(MachO::section);
+
+ uintptr_t SectionAddr = CommandAddr + SegmentLoadSize + Sec * SectionSize;
+ return reinterpret_cast<const char*>(SectionAddr);
}
-unsigned MachOObjectFileBase::getHeaderSize() const {
- return is64Bit() ? macho::Header64Size : macho::Header32Size;
+static const char *getPtr(const MachOObjectFile *O, size_t Offset) {
+ return O->getData().substr(Offset, 1).data();
}
-StringRef MachOObjectFileBase::getData(size_t Offset, size_t Size) const {
- return ObjectFile::getData().substr(Offset, Size);
+static nlist_base
+getSymbolTableEntryBase(const MachOObjectFile *O, DataRefImpl DRI) {
+ const char *P = reinterpret_cast<const char *>(DRI.p);
+ return getStruct<nlist_base>(O, P);
}
-ObjectFile *ObjectFile::createMachOObjectFile(MemoryBuffer *Buffer) {
- StringRef Magic = Buffer->getBuffer().slice(0, 4);
+static StringRef parseSegmentOrSectionName(const char *P) {
+ if (P[15] == 0)
+ // Null terminated.
+ return P;
+ // Not null terminated, so this is a 16 char string.
+ return StringRef(P, 16);
+}
+
+// Helper to advance a section or symbol iterator multiple increments at a time.
+template<class T>
+static error_code advance(T &it, size_t Val) {
error_code ec;
- bool Is64Bits = Magic == "\xFE\xED\xFA\xCF" || Magic == "\xCF\xFA\xED\xFE";
- ObjectFile *Ret;
- if (Is64Bits)
- Ret = new MachOObjectFile<true>(Buffer, ec);
- else
- Ret = new MachOObjectFile<false>(Buffer, ec);
- if (ec)
- return NULL;
- return Ret;
+ while (Val--) {
+ it.increment(ec);
+ }
+ return ec;
}
-/*===-- Symbols -----------------------------------------------------------===*/
+template<class T>
+static void advanceTo(T &it, size_t Val) {
+ if (error_code ec = advance(it, Val))
+ report_fatal_error(ec.message());
+}
+
+static unsigned getCPUType(const MachOObjectFile *O) {
+ return O->getHeader().cputype;
+}
+
+static void printRelocationTargetName(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE,
+ raw_string_ostream &fmt) {
+ bool IsScattered = O->isRelocationScattered(RE);
+
+ // Target of a scattered relocation is an address. In the interest of
+ // generating pretty output, scan through the symbol table looking for a
+ // symbol that aligns with that address. If we find one, print it.
+ // Otherwise, we just print the hex address of the target.
+ if (IsScattered) {
+ uint32_t Val = O->getPlainRelocationSymbolNum(RE);
+
+ error_code ec;
+ for (symbol_iterator SI = O->begin_symbols(), SE = O->end_symbols();
+ SI != SE; SI.increment(ec)) {
+ if (ec) report_fatal_error(ec.message());
+
+ uint64_t Addr;
+ StringRef Name;
-void MachOObjectFileBase::moveToNextSymbol(DataRefImpl &DRI) const {
- uint32_t LoadCommandCount = getHeader()->NumLoadCommands;
- while (DRI.d.a < LoadCommandCount) {
- const LoadCommand *Command = getLoadCommandInfo(DRI.d.a);
- if (Command->Type == macho::LCT_Symtab) {
- const SymtabLoadCommand *SymtabLoadCmd =
- reinterpret_cast<const SymtabLoadCommand*>(Command);
- if (DRI.d.b < SymtabLoadCmd->NumSymbolTableEntries)
- return;
+ if ((ec = SI->getAddress(Addr)))
+ report_fatal_error(ec.message());
+ if (Addr != Val) continue;
+ if ((ec = SI->getName(Name)))
+ report_fatal_error(ec.message());
+ fmt << Name;
+ return;
}
- DRI.d.a++;
- DRI.d.b = 0;
+ // If we couldn't find a symbol that this relocation refers to, try
+ // to find a section beginning instead.
+ for (section_iterator SI = O->begin_sections(), SE = O->end_sections();
+ SI != SE; SI.increment(ec)) {
+ if (ec) report_fatal_error(ec.message());
+
+ uint64_t Addr;
+ StringRef Name;
+
+ if ((ec = SI->getAddress(Addr)))
+ report_fatal_error(ec.message());
+ if (Addr != Val) continue;
+ if ((ec = SI->getName(Name)))
+ report_fatal_error(ec.message());
+ fmt << Name;
+ return;
+ }
+
+ fmt << format("0x%x", Val);
+ return;
}
-}
-const MachOObjectFileBase::SymbolTableEntryBase *
-MachOObjectFileBase::getSymbolTableEntryBase(DataRefImpl DRI) const {
- const LoadCommand *Command = getLoadCommandInfo(DRI.d.a);
- const SymtabLoadCommand *SymtabLoadCmd =
- reinterpret_cast<const SymtabLoadCommand*>(Command);
- return getSymbolTableEntryBase(DRI, SymtabLoadCmd);
+ StringRef S;
+ bool isExtern = O->getPlainRelocationExternal(RE);
+ uint64_t Val = O->getPlainRelocationSymbolNum(RE);
+
+ if (isExtern) {
+ symbol_iterator SI = O->begin_symbols();
+ advanceTo(SI, Val);
+ SI->getName(S);
+ } else {
+ section_iterator SI = O->begin_sections();
+ // Adjust for the fact that sections are 1-indexed.
+ advanceTo(SI, Val - 1);
+ SI->getName(S);
+ }
+
+ fmt << S;
}
-const MachOObjectFileBase::SymbolTableEntryBase *
-MachOObjectFileBase::getSymbolTableEntryBase(DataRefImpl DRI,
- const SymtabLoadCommand *SymtabLoadCmd) const {
- uint64_t SymbolTableOffset = SymtabLoadCmd->SymbolTableOffset;
- unsigned Index = DRI.d.b;
+static uint32_t
+getPlainRelocationAddress(const MachO::any_relocation_info &RE) {
+ return RE.r_word0;
+}
- unsigned SymbolTableEntrySize = is64Bit() ?
- sizeof(MachOFormat::SymbolTableEntry<true>) :
- sizeof(MachOFormat::SymbolTableEntry<false>);
+static unsigned
+getScatteredRelocationAddress(const MachO::any_relocation_info &RE) {
+ return RE.r_word0 & 0xffffff;
+}
- uint64_t Offset = SymbolTableOffset + Index * SymbolTableEntrySize;
- StringRef Data = getData(Offset, SymbolTableEntrySize);
- return reinterpret_cast<const SymbolTableEntryBase*>(Data.data());
+static bool getPlainRelocationPCRel(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE) {
+ if (O->isLittleEndian())
+ return (RE.r_word1 >> 24) & 1;
+ return (RE.r_word1 >> 7) & 1;
}
-error_code MachOObjectFileBase::getSymbolNext(DataRefImpl DRI,
- SymbolRef &Result) const {
- DRI.d.b++;
- moveToNextSymbol(DRI);
- Result = SymbolRef(DRI, this);
- return object_error::success;
+static bool
+getScatteredRelocationPCRel(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE) {
+ return (RE.r_word0 >> 30) & 1;
}
-error_code MachOObjectFileBase::getSymbolName(DataRefImpl DRI,
- StringRef &Result) const {
- const LoadCommand *Command = getLoadCommandInfo(DRI.d.a);
- const SymtabLoadCommand *SymtabLoadCmd =
- reinterpret_cast<const SymtabLoadCommand*>(Command);
+static unsigned getPlainRelocationLength(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE) {
+ if (O->isLittleEndian())
+ return (RE.r_word1 >> 25) & 3;
+ return (RE.r_word1 >> 5) & 3;
+}
- StringRef StringTable = getData(SymtabLoadCmd->StringTableOffset,
- SymtabLoadCmd->StringTableSize);
+static unsigned
+getScatteredRelocationLength(const MachO::any_relocation_info &RE) {
+ return (RE.r_word0 >> 28) & 3;
+}
- const SymbolTableEntryBase *Entry =
- getSymbolTableEntryBase(DRI, SymtabLoadCmd);
- uint32_t StringIndex = Entry->StringIndex;
+static unsigned getPlainRelocationType(const MachOObjectFile *O,
+ const MachO::any_relocation_info &RE) {
+ if (O->isLittleEndian())
+ return RE.r_word1 >> 28;
+ return RE.r_word1 & 0xf;
+}
- const char *Start = &StringTable.data()[StringIndex];
- Result = StringRef(Start);
+static unsigned
+getScatteredRelocationType(const MachO::any_relocation_info &RE) {
+ return (RE.r_word0 >> 24) & 0xf;
+}
- return object_error::success;
+static uint32_t getSectionFlags(const MachOObjectFile *O,
+ DataRefImpl Sec) {
+ if (O->is64Bit()) {
+ MachO::section_64 Sect = O->getSection64(Sec);
+ return Sect.flags;
+ }
+ MachO::section Sect = O->getSection(Sec);
+ return Sect.flags;
}
-error_code MachOObjectFileBase::getSymbolNMTypeChar(DataRefImpl DRI,
- char &Result) const {
- const SymbolTableEntryBase *Entry = getSymbolTableEntryBase(DRI);
- uint8_t Type = Entry->Type;
- uint16_t Flags = Entry->Flags;
+MachOObjectFile::MachOObjectFile(MemoryBuffer *Object,
+ bool IsLittleEndian, bool Is64bits,
+ error_code &ec)
+ : ObjectFile(getMachOType(IsLittleEndian, Is64bits), Object),
+ SymtabLoadCmd(NULL), DysymtabLoadCmd(NULL), DataInCodeLoadCmd(NULL) {
+ uint32_t LoadCommandCount = this->getHeader().ncmds;
+ MachO::LoadCommandType SegmentLoadType = is64Bit() ?
+ MachO::LC_SEGMENT_64 : MachO::LC_SEGMENT;
+
+ MachOObjectFile::LoadCommandInfo Load = getFirstLoadCommandInfo();
+ for (unsigned I = 0; ; ++I) {
+ if (Load.C.cmd == MachO::LC_SYMTAB) {
+ assert(!SymtabLoadCmd && "Multiple symbol tables");
+ SymtabLoadCmd = Load.Ptr;
+ } else if (Load.C.cmd == MachO::LC_DYSYMTAB) {
+ assert(!DysymtabLoadCmd && "Multiple dynamic symbol tables");
+ DysymtabLoadCmd = Load.Ptr;
+ } else if (Load.C.cmd == MachO::LC_DATA_IN_CODE) {
+ assert(!DataInCodeLoadCmd && "Multiple data in code tables");
+ DataInCodeLoadCmd = Load.Ptr;
+ } else if (Load.C.cmd == SegmentLoadType) {
+ uint32_t NumSections = getSegmentLoadCommandNumSections(this, Load);
+ for (unsigned J = 0; J < NumSections; ++J) {
+ const char *Sec = getSectionPtr(this, Load, J);
+ Sections.push_back(Sec);
+ }
+ }
- char Char;
- switch (Type & macho::STF_TypeMask) {
- case macho::STT_Undefined:
- Char = 'u';
- break;
- case macho::STT_Absolute:
- case macho::STT_Section:
- Char = 's';
- break;
- default:
- Char = '?';
+ if (I == LoadCommandCount - 1)
break;
+ else
+ Load = getNextLoadCommandInfo(Load);
}
+}
- if (Flags & (macho::STF_External | macho::STF_PrivateExtern))
- Char = toupper(static_cast<unsigned char>(Char));
- Result = Char;
+error_code MachOObjectFile::getSymbolNext(DataRefImpl Symb,
+ SymbolRef &Res) const {
+ unsigned SymbolTableEntrySize = is64Bit() ?
+ sizeof(MachO::nlist_64) :
+ sizeof(MachO::nlist);
+ Symb.p += SymbolTableEntrySize;
+ Res = SymbolRef(Symb, this);
return object_error::success;
}
-error_code MachOObjectFileBase::getSymbolFlags(DataRefImpl DRI,
- uint32_t &Result) const {
- const SymbolTableEntryBase *Entry = getSymbolTableEntryBase(DRI);
- uint8_t MachOType = Entry->Type;
- uint16_t MachOFlags = Entry->Flags;
-
- // TODO: Correctly set SF_ThreadLocal
- Result = SymbolRef::SF_None;
-
- if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeUndefined)
- Result |= SymbolRef::SF_Undefined;
-
- if (MachOFlags & macho::STF_StabsEntryMask)
- Result |= SymbolRef::SF_FormatSpecific;
+error_code MachOObjectFile::getSymbolName(DataRefImpl Symb,
+ StringRef &Res) const {
+ StringRef StringTable = getStringTableData();
+ nlist_base Entry = getSymbolTableEntryBase(this, Symb);
+ const char *Start = &StringTable.data()[Entry.n_strx];
+ Res = StringRef(Start);
+ return object_error::success;
+}
- if (MachOType & MachO::NlistMaskExternal) {
- Result |= SymbolRef::SF_Global;
- if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeUndefined)
- Result |= SymbolRef::SF_Common;
+error_code MachOObjectFile::getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Res) const {
+ if (is64Bit()) {
+ MachO::nlist_64 Entry = getSymbol64TableEntry(Symb);
+ Res = Entry.n_value;
+ } else {
+ MachO::nlist Entry = getSymbolTableEntry(Symb);
+ Res = Entry.n_value;
}
+ return object_error::success;
+}
- if (MachOFlags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef))
- Result |= SymbolRef::SF_Weak;
+error_code
+MachOObjectFile::getSymbolFileOffset(DataRefImpl Symb,
+ uint64_t &Res) const {
+ nlist_base Entry = getSymbolTableEntryBase(this, Symb);
+ getSymbolAddress(Symb, Res);
+ if (Entry.n_sect) {
+ uint64_t Delta;
+ DataRefImpl SecRel;
+ SecRel.d.a = Entry.n_sect-1;
+ if (is64Bit()) {
+ MachO::section_64 Sec = getSection64(SecRel);
+ Delta = Sec.offset - Sec.addr;
+ } else {
+ MachO::section Sec = getSection(SecRel);
+ Delta = Sec.offset - Sec.addr;
+ }
- if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeAbsolute)
- Result |= SymbolRef::SF_Absolute;
+ Res += Delta;
+ }
return object_error::success;
}
-error_code MachOObjectFileBase::getSymbolSection(DataRefImpl Symb,
- section_iterator &Res) const {
- const SymbolTableEntryBase *Entry = getSymbolTableEntryBase(Symb);
- uint8_t index = Entry->SectionIndex;
-
- if (index == 0)
- Res = end_sections();
- else
- Res = section_iterator(SectionRef(Sections[index-1], this));
+error_code MachOObjectFile::getSymbolAlignment(DataRefImpl DRI,
+ uint32_t &Result) const {
+ uint32_t flags;
+ this->getSymbolFlags(DRI, flags);
+ if (flags & SymbolRef::SF_Common) {
+ nlist_base Entry = getSymbolTableEntryBase(this, DRI);
+ Result = 1 << MachO::GET_COMM_ALIGN(Entry.n_desc);
+ } else {
+ Result = 0;
+ }
+ return object_error::success;
+}
+error_code MachOObjectFile::getSymbolSize(DataRefImpl DRI,
+ uint64_t &Result) const {
+ uint64_t BeginOffset;
+ uint64_t EndOffset = 0;
+ uint8_t SectionIndex;
+
+ nlist_base Entry = getSymbolTableEntryBase(this, DRI);
+ uint64_t Value;
+ getSymbolAddress(DRI, Value);
+
+ BeginOffset = Value;
+
+ SectionIndex = Entry.n_sect;
+ if (!SectionIndex) {
+ uint32_t flags = SymbolRef::SF_None;
+ this->getSymbolFlags(DRI, flags);
+ if (flags & SymbolRef::SF_Common)
+ Result = Value;
+ else
+ Result = UnknownAddressOrSize;
+ return object_error::success;
+ }
+ // Unfortunately symbols are unsorted so we need to touch all
+ // symbols from load command
+ error_code ec;
+ for (symbol_iterator I = begin_symbols(), E = end_symbols(); I != E;
+ I.increment(ec)) {
+ DataRefImpl DRI = I->getRawDataRefImpl();
+ Entry = getSymbolTableEntryBase(this, DRI);
+ getSymbolAddress(DRI, Value);
+ if (Entry.n_sect == SectionIndex && Value > BeginOffset)
+ if (!EndOffset || Value < EndOffset)
+ EndOffset = Value;
+ }
+ if (!EndOffset) {
+ uint64_t Size;
+ DataRefImpl Sec;
+ Sec.d.a = SectionIndex-1;
+ getSectionSize(Sec, Size);
+ getSectionAddress(Sec, EndOffset);
+ EndOffset += Size;
+ }
+ Result = EndOffset - BeginOffset;
return object_error::success;
}
-error_code MachOObjectFileBase::getSymbolType(DataRefImpl Symb,
- SymbolRef::Type &Res) const {
- const SymbolTableEntryBase *Entry = getSymbolTableEntryBase(Symb);
- uint8_t n_type = Entry->Type;
+error_code MachOObjectFile::getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Res) const {
+ nlist_base Entry = getSymbolTableEntryBase(this, Symb);
+ uint8_t n_type = Entry.n_type;
Res = SymbolRef::ST_Other;
// If this is a STAB debugging symbol, we can do nothing more.
- if (n_type & MachO::NlistMaskStab) {
+ if (n_type & MachO::N_STAB) {
Res = SymbolRef::ST_Debug;
return object_error::success;
}
- switch (n_type & MachO::NlistMaskType) {
- case MachO::NListTypeUndefined :
+ switch (n_type & MachO::N_TYPE) {
+ case MachO::N_UNDF :
Res = SymbolRef::ST_Unknown;
break;
- case MachO::NListTypeSection :
+ case MachO::N_SECT :
Res = SymbolRef::ST_Function;
break;
}
return object_error::success;
}
-error_code MachOObjectFileBase::getSymbolValue(DataRefImpl Symb,
- uint64_t &Val) const {
- report_fatal_error("getSymbolValue unimplemented in MachOObjectFileBase");
-}
+error_code MachOObjectFile::getSymbolFlags(DataRefImpl DRI,
+ uint32_t &Result) const {
+ nlist_base Entry = getSymbolTableEntryBase(this, DRI);
-symbol_iterator MachOObjectFileBase::begin_symbols() const {
- // DRI.d.a = segment number; DRI.d.b = symbol index.
- DataRefImpl DRI;
- moveToNextSymbol(DRI);
- return symbol_iterator(SymbolRef(DRI, this));
-}
+ uint8_t MachOType = Entry.n_type;
+ uint16_t MachOFlags = Entry.n_desc;
-symbol_iterator MachOObjectFileBase::end_symbols() const {
- DataRefImpl DRI;
- DRI.d.a = getHeader()->NumLoadCommands;
- return symbol_iterator(SymbolRef(DRI, this));
-}
+ // TODO: Correctly set SF_ThreadLocal
+ Result = SymbolRef::SF_None;
-symbol_iterator MachOObjectFileBase::begin_dynamic_symbols() const {
- // TODO: implement
- report_fatal_error("Dynamic symbols unimplemented in MachOObjectFileBase");
-}
+ if ((MachOType & MachO::N_TYPE) == MachO::N_UNDF)
+ Result |= SymbolRef::SF_Undefined;
-symbol_iterator MachOObjectFileBase::end_dynamic_symbols() const {
- // TODO: implement
- report_fatal_error("Dynamic symbols unimplemented in MachOObjectFileBase");
-}
+ if (MachOType & MachO::N_STAB)
+ Result |= SymbolRef::SF_FormatSpecific;
-library_iterator MachOObjectFileBase::begin_libraries_needed() const {
- // TODO: implement
- report_fatal_error("Needed libraries unimplemented in MachOObjectFileBase");
-}
+ if (MachOType & MachO::N_EXT) {
+ Result |= SymbolRef::SF_Global;
+ if ((MachOType & MachO::N_TYPE) == MachO::N_UNDF) {
+ uint64_t Value;
+ getSymbolAddress(DRI, Value);
+ if (Value)
+ Result |= SymbolRef::SF_Common;
+ }
+ }
-library_iterator MachOObjectFileBase::end_libraries_needed() const {
- // TODO: implement
- report_fatal_error("Needed libraries unimplemented in MachOObjectFileBase");
-}
+ if (MachOFlags & (MachO::N_WEAK_REF | MachO::N_WEAK_DEF))
+ Result |= SymbolRef::SF_Weak;
-StringRef MachOObjectFileBase::getLoadName() const {
- // TODO: Implement
- report_fatal_error("get_load_name() unimplemented in MachOObjectFileBase");
+ if ((MachOType & MachO::N_TYPE) == MachO::N_ABS)
+ Result |= SymbolRef::SF_Absolute;
+
+ return object_error::success;
}
-/*===-- Sections ----------------------------------------------------------===*/
+error_code
+MachOObjectFile::getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const {
+ nlist_base Entry = getSymbolTableEntryBase(this, Symb);
+ uint8_t index = Entry.n_sect;
-std::size_t MachOObjectFileBase::getSectionIndex(DataRefImpl Sec) const {
- SectionList::const_iterator loc =
- std::find(Sections.begin(), Sections.end(), Sec);
- assert(loc != Sections.end() && "Sec is not a valid section!");
- return std::distance(Sections.begin(), loc);
+ if (index == 0) {
+ Res = end_sections();
+ } else {
+ DataRefImpl DRI;
+ DRI.d.a = index - 1;
+ Res = section_iterator(SectionRef(DRI, this));
+ }
+
+ return object_error::success;
}
-const MachOObjectFileBase::SectionBase*
-MachOObjectFileBase::getSectionBase(DataRefImpl DRI) const {
- const LoadCommand *Command = getLoadCommandInfo(DRI.d.a);
- uintptr_t CommandAddr = reinterpret_cast<uintptr_t>(Command);
+error_code MachOObjectFile::getSymbolValue(DataRefImpl Symb,
+ uint64_t &Val) const {
+ report_fatal_error("getSymbolValue unimplemented in MachOObjectFile");
+}
- bool Is64 = is64Bit();
- unsigned SegmentLoadSize =
- Is64 ? sizeof(MachOFormat::SegmentLoadCommand<true>) :
- sizeof(MachOFormat::SegmentLoadCommand<false>);
- unsigned SectionSize = Is64 ? sizeof(MachOFormat::Section<true>) :
- sizeof(MachOFormat::Section<false>);
+error_code MachOObjectFile::getSectionNext(DataRefImpl Sec,
+ SectionRef &Res) const {
+ Sec.d.a++;
+ Res = SectionRef(Sec, this);
+ return object_error::success;
+}
- uintptr_t SectionAddr = CommandAddr + SegmentLoadSize + DRI.d.b * SectionSize;
- return reinterpret_cast<const SectionBase*>(SectionAddr);
+error_code
+MachOObjectFile::getSectionName(DataRefImpl Sec, StringRef &Result) const {
+ ArrayRef<char> Raw = getSectionRawName(Sec);
+ Result = parseSegmentOrSectionName(Raw.data());
+ return object_error::success;
}
-static StringRef parseSegmentOrSectionName(const char *P) {
- if (P[15] == 0)
- // Null terminated.
- return P;
- // Not null terminated, so this is a 16 char string.
- return StringRef(P, 16);
+error_code
+MachOObjectFile::getSectionAddress(DataRefImpl Sec, uint64_t &Res) const {
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Res = Sect.addr;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Res = Sect.addr;
+ }
+ return object_error::success;
}
-ArrayRef<char> MachOObjectFileBase::getSectionRawName(DataRefImpl DRI) const {
- const SectionBase *Base = getSectionBase(DRI);
- return ArrayRef<char>(Base->Name);
+error_code
+MachOObjectFile::getSectionSize(DataRefImpl Sec, uint64_t &Res) const {
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Res = Sect.size;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Res = Sect.size;
+ }
+
+ return object_error::success;
}
-error_code MachOObjectFileBase::getSectionName(DataRefImpl DRI,
- StringRef &Result) const {
- ArrayRef<char> Raw = getSectionRawName(DRI);
- Result = parseSegmentOrSectionName(Raw.data());
+error_code
+MachOObjectFile::getSectionContents(DataRefImpl Sec, StringRef &Res) const {
+ uint32_t Offset;
+ uint64_t Size;
+
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Offset = Sect.offset;
+ Size = Sect.size;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Offset = Sect.offset;
+ Size = Sect.size;
+ }
+
+ Res = this->getData().substr(Offset, Size);
return object_error::success;
}
-ArrayRef<char>
-MachOObjectFileBase::getSectionRawFinalSegmentName(DataRefImpl Sec) const {
- const SectionBase *Base = getSectionBase(Sec);
- return ArrayRef<char>(Base->SegmentName);
+error_code
+MachOObjectFile::getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const {
+ uint32_t Align;
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Align = Sect.align;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Align = Sect.align;
+ }
+
+ Res = uint64_t(1) << Align;
+ return object_error::success;
}
-StringRef
-MachOObjectFileBase::getSectionFinalSegmentName(DataRefImpl DRI) const {
- ArrayRef<char> Raw = getSectionRawFinalSegmentName(DRI);
- return parseSegmentOrSectionName(Raw.data());
+error_code
+MachOObjectFile::isSectionText(DataRefImpl Sec, bool &Res) const {
+ uint32_t Flags = getSectionFlags(this, Sec);
+ Res = Flags & MachO::S_ATTR_PURE_INSTRUCTIONS;
+ return object_error::success;
}
-error_code MachOObjectFileBase::isSectionData(DataRefImpl DRI,
- bool &Result) const {
+error_code MachOObjectFile::isSectionData(DataRefImpl DRI, bool &Result) const {
// FIXME: Unimplemented.
Result = false;
return object_error::success;
}
-error_code MachOObjectFileBase::isSectionBSS(DataRefImpl DRI,
- bool &Result) const {
+error_code MachOObjectFile::isSectionBSS(DataRefImpl DRI, bool &Result) const {
// FIXME: Unimplemented.
Result = false;
return object_error::success;
}
error_code
-MachOObjectFileBase::isSectionRequiredForExecution(DataRefImpl Sec,
- bool &Result) const {
+MachOObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
+ bool &Result) const {
// FIXME: Unimplemented.
Result = true;
return object_error::success;
}
-error_code MachOObjectFileBase::isSectionVirtual(DataRefImpl Sec,
- bool &Result) const {
+error_code MachOObjectFile::isSectionVirtual(DataRefImpl Sec,
+ bool &Result) const {
// FIXME: Unimplemented.
Result = false;
return object_error::success;
}
-error_code MachOObjectFileBase::isSectionReadOnlyData(DataRefImpl Sec,
- bool &Result) const {
+error_code
+MachOObjectFile::isSectionZeroInit(DataRefImpl Sec, bool &Res) const {
+ uint32_t Flags = getSectionFlags(this, Sec);
+ unsigned SectionType = Flags & MachO::SECTION_TYPE;
+ Res = SectionType == MachO::S_ZEROFILL ||
+ SectionType == MachO::S_GB_ZEROFILL;
+ return object_error::success;
+}
+
+error_code MachOObjectFile::isSectionReadOnlyData(DataRefImpl Sec,
+ bool &Result) const {
// Consider using the code from isSectionText to look for __const sections.
// Alternately, emit S_ATTR_PURE_INSTRUCTIONS and/or S_ATTR_SOME_INSTRUCTIONS
// to use section attributes to distinguish code from data.
return object_error::success;
}
-relocation_iterator MachOObjectFileBase::getSectionRelBegin(DataRefImpl Sec) const {
- DataRefImpl ret;
- ret.d.b = getSectionIndex(Sec);
- return relocation_iterator(RelocationRef(ret, this));
+error_code
+MachOObjectFile::sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
+ bool &Result) const {
+ SymbolRef::Type ST;
+ this->getSymbolType(Symb, ST);
+ if (ST == SymbolRef::ST_Unknown) {
+ Result = false;
+ return object_error::success;
+ }
+
+ uint64_t SectBegin, SectEnd;
+ getSectionAddress(Sec, SectBegin);
+ getSectionSize(Sec, SectEnd);
+ SectEnd += SectBegin;
+
+ uint64_t SymAddr;
+ getSymbolAddress(Symb, SymAddr);
+ Result = (SymAddr >= SectBegin) && (SymAddr < SectEnd);
+
+ return object_error::success;
}
-section_iterator MachOObjectFileBase::end_sections() const {
- DataRefImpl DRI;
- DRI.d.a = getHeader()->NumLoadCommands;
- return section_iterator(SectionRef(DRI, this));
+relocation_iterator MachOObjectFile::section_rel_begin(DataRefImpl Sec) const {
+ uint32_t Offset;
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Offset = Sect.reloff;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Offset = Sect.reloff;
+ }
+
+ DataRefImpl Ret;
+ Ret.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
+ return relocation_iterator(RelocationRef(Ret, this));
}
-/*===-- Relocations -------------------------------------------------------===*/
+relocation_iterator
+MachOObjectFile::section_rel_end(DataRefImpl Sec) const {
+ uint32_t Offset;
+ uint32_t Num;
+ if (is64Bit()) {
+ MachO::section_64 Sect = getSection64(Sec);
+ Offset = Sect.reloff;
+ Num = Sect.nreloc;
+ } else {
+ MachO::section Sect = getSection(Sec);
+ Offset = Sect.reloff;
+ Num = Sect.nreloc;
+ }
-error_code MachOObjectFileBase::getRelocationNext(DataRefImpl Rel,
- RelocationRef &Res) const {
- ++Rel.d.a;
+ const MachO::any_relocation_info *P =
+ reinterpret_cast<const MachO::any_relocation_info *>(getPtr(this, Offset));
+
+ DataRefImpl Ret;
+ Ret.p = reinterpret_cast<uintptr_t>(P + Num);
+ return relocation_iterator(RelocationRef(Ret, this));
+}
+
+error_code MachOObjectFile::getRelocationNext(DataRefImpl Rel,
+ RelocationRef &Res) const {
+ const MachO::any_relocation_info *P =
+ reinterpret_cast<const MachO::any_relocation_info *>(Rel.p);
+ Rel.p = reinterpret_cast<uintptr_t>(P + 1);
Res = RelocationRef(Rel, this);
return object_error::success;
}
-// Helper to advance a section or symbol iterator multiple increments at a time.
-template<class T>
-error_code advance(T &it, size_t Val) {
- error_code ec;
- while (Val--) {
- it.increment(ec);
- }
- return ec;
+error_code
+MachOObjectFile::getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const {
+ report_fatal_error("getRelocationAddress not implemented in MachOObjectFile");
}
-template<class T>
-void advanceTo(T &it, size_t Val) {
- if (error_code ec = advance(it, Val))
- report_fatal_error(ec.message());
+error_code MachOObjectFile::getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Res) const {
+ MachO::any_relocation_info RE = getRelocation(Rel);
+ Res = getAnyRelocationAddress(RE);
+ return object_error::success;
}
-void
-MachOObjectFileBase::printRelocationTargetName(const RelocationEntry *RE,
- raw_string_ostream &fmt) const {
- unsigned Arch = getArch();
- bool isScattered = (Arch != Triple::x86_64) &&
- (RE->Word0 & macho::RF_Scattered);
+symbol_iterator
+MachOObjectFile::getRelocationSymbol(DataRefImpl Rel) const {
+ MachO::any_relocation_info RE = getRelocation(Rel);
+ uint32_t SymbolIdx = getPlainRelocationSymbolNum(RE);
+ bool isExtern = getPlainRelocationExternal(RE);
+ if (!isExtern)
+ return end_symbols();
- // Target of a scattered relocation is an address. In the interest of
- // generating pretty output, scan through the symbol table looking for a
- // symbol that aligns with that address. If we find one, print it.
- // Otherwise, we just print the hex address of the target.
- if (isScattered) {
- uint32_t Val = RE->Word1;
+ MachO::symtab_command S = getSymtabLoadCommand();
+ unsigned SymbolTableEntrySize = is64Bit() ?
+ sizeof(MachO::nlist_64) :
+ sizeof(MachO::nlist);
+ uint64_t Offset = S.symoff + SymbolIdx * SymbolTableEntrySize;
+ DataRefImpl Sym;
+ Sym.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
+ return symbol_iterator(SymbolRef(Sym, this));
+}
- error_code ec;
- for (symbol_iterator SI = begin_symbols(), SE = end_symbols(); SI != SE;
- SI.increment(ec)) {
- if (ec) report_fatal_error(ec.message());
+error_code MachOObjectFile::getRelocationType(DataRefImpl Rel,
+ uint64_t &Res) const {
+ MachO::any_relocation_info RE = getRelocation(Rel);
+ Res = getAnyRelocationType(RE);
+ return object_error::success;
+}
- uint64_t Addr;
- StringRef Name;
+error_code
+MachOObjectFile::getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const {
+ StringRef res;
+ uint64_t RType;
+ getRelocationType(Rel, RType);
+
+ unsigned Arch = this->getArch();
+
+ switch (Arch) {
+ case Triple::x86: {
+ static const char *const Table[] = {
+ "GENERIC_RELOC_VANILLA",
+ "GENERIC_RELOC_PAIR",
+ "GENERIC_RELOC_SECTDIFF",
+ "GENERIC_RELOC_PB_LA_PTR",
+ "GENERIC_RELOC_LOCAL_SECTDIFF",
+ "GENERIC_RELOC_TLV" };
+
+ if (RType > 6)
+ res = "Unknown";
+ else
+ res = Table[RType];
+ break;
+ }
+ case Triple::x86_64: {
+ static const char *const Table[] = {
+ "X86_64_RELOC_UNSIGNED",
+ "X86_64_RELOC_SIGNED",
+ "X86_64_RELOC_BRANCH",
+ "X86_64_RELOC_GOT_LOAD",
+ "X86_64_RELOC_GOT",
+ "X86_64_RELOC_SUBTRACTOR",
+ "X86_64_RELOC_SIGNED_1",
+ "X86_64_RELOC_SIGNED_2",
+ "X86_64_RELOC_SIGNED_4",
+ "X86_64_RELOC_TLV" };
+
+ if (RType > 9)
+ res = "Unknown";
+ else
+ res = Table[RType];
+ break;
+ }
+ case Triple::arm: {
+ static const char *const Table[] = {
+ "ARM_RELOC_VANILLA",
+ "ARM_RELOC_PAIR",
+ "ARM_RELOC_SECTDIFF",
+ "ARM_RELOC_LOCAL_SECTDIFF",
+ "ARM_RELOC_PB_LA_PTR",
+ "ARM_RELOC_BR24",
+ "ARM_THUMB_RELOC_BR22",
+ "ARM_THUMB_32BIT_BRANCH",
+ "ARM_RELOC_HALF",
+ "ARM_RELOC_HALF_SECTDIFF" };
+
+ if (RType > 9)
+ res = "Unknown";
+ else
+ res = Table[RType];
+ break;
+ }
+ case Triple::ppc: {
+ static const char *const Table[] = {
+ "PPC_RELOC_VANILLA",
+ "PPC_RELOC_PAIR",
+ "PPC_RELOC_BR14",
+ "PPC_RELOC_BR24",
+ "PPC_RELOC_HI16",
+ "PPC_RELOC_LO16",
+ "PPC_RELOC_HA16",
+ "PPC_RELOC_LO14",
+ "PPC_RELOC_SECTDIFF",
+ "PPC_RELOC_PB_LA_PTR",
+ "PPC_RELOC_HI16_SECTDIFF",
+ "PPC_RELOC_LO16_SECTDIFF",
+ "PPC_RELOC_HA16_SECTDIFF",
+ "PPC_RELOC_JBSR",
+ "PPC_RELOC_LO14_SECTDIFF",
+ "PPC_RELOC_LOCAL_SECTDIFF" };
+
+ res = Table[RType];
+ break;
+ }
+ case Triple::UnknownArch:
+ res = "Unknown";
+ break;
+ }
+ Result.append(res.begin(), res.end());
+ return object_error::success;
+}
- if ((ec = SI->getAddress(Addr)))
- report_fatal_error(ec.message());
- if (Addr != Val) continue;
- if ((ec = SI->getName(Name)))
- report_fatal_error(ec.message());
- fmt << Name;
- return;
+error_code
+MachOObjectFile::getRelocationValueString(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const {
+ MachO::any_relocation_info RE = getRelocation(Rel);
+
+ unsigned Arch = this->getArch();
+
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ unsigned Type = this->getAnyRelocationType(RE);
+ bool IsPCRel = this->getAnyRelocationPCRel(RE);
+
+ // Determine any addends that should be displayed with the relocation.
+ // These require decoding the relocation type, which is triple-specific.
+
+ // X86_64 has entirely custom relocation types.
+ if (Arch == Triple::x86_64) {
+ bool isPCRel = getAnyRelocationPCRel(RE);
+
+ switch (Type) {
+ case MachO::X86_64_RELOC_GOT_LOAD:
+ case MachO::X86_64_RELOC_GOT: {
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "@GOT";
+ if (isPCRel) fmt << "PCREL";
+ break;
+ }
+ case MachO::X86_64_RELOC_SUBTRACTOR: {
+ DataRefImpl RelNext = Rel;
+ RelNext.d.a++;
+ MachO::any_relocation_info RENext = getRelocation(RelNext);
+
+ // X86_64_RELOC_SUBTRACTOR must be followed by a relocation of type
+ // X86_64_RELOC_UNSIGNED.
+ // NOTE: Scattered relocations don't exist on x86_64.
+ unsigned RType = getAnyRelocationType(RENext);
+ if (RType != MachO::X86_64_RELOC_UNSIGNED)
+ report_fatal_error("Expected X86_64_RELOC_UNSIGNED after "
+ "X86_64_RELOC_SUBTRACTOR.");
+
+ // The X86_64_RELOC_UNSIGNED contains the minuend symbol;
+ // X86_64_RELOC_SUBTRACTOR contains the subtrahend.
+ printRelocationTargetName(this, RENext, fmt);
+ fmt << "-";
+ printRelocationTargetName(this, RE, fmt);
+ break;
+ }
+ case MachO::X86_64_RELOC_TLV:
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "@TLV";
+ if (isPCRel) fmt << "P";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_1:
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "-1";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_2:
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "-2";
+ break;
+ case MachO::X86_64_RELOC_SIGNED_4:
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "-4";
+ break;
+ default:
+ printRelocationTargetName(this, RE, fmt);
+ break;
+ }
+ // X86 and ARM share some relocation types in common.
+ } else if (Arch == Triple::x86 || Arch == Triple::arm ||
+ Arch == Triple::ppc) {
+ // Generic relocation types...
+ switch (Type) {
+ case MachO::GENERIC_RELOC_PAIR: // prints no info
+ return object_error::success;
+ case MachO::GENERIC_RELOC_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ RelNext.d.a++;
+ MachO::any_relocation_info RENext = getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = getAnyRelocationType(RENext);
+
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_SECTDIFF.");
+
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(this, RENext, fmt);
+ break;
+ }
}
- // If we couldn't find a symbol that this relocation refers to, try
- // to find a section beginning instead.
- for (section_iterator SI = begin_sections(), SE = end_sections(); SI != SE;
- SI.increment(ec)) {
- if (ec) report_fatal_error(ec.message());
+ if (Arch == Triple::x86 || Arch == Triple::ppc) {
+ switch (Type) {
+ case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: {
+ DataRefImpl RelNext = Rel;
+ RelNext.d.a++;
+ MachO::any_relocation_info RENext = getRelocation(RelNext);
+
+ // X86 sect diff's must be followed by a relocation of type
+ // GENERIC_RELOC_PAIR.
+ unsigned RType = getAnyRelocationType(RENext);
+ if (RType != MachO::GENERIC_RELOC_PAIR)
+ report_fatal_error("Expected GENERIC_RELOC_PAIR after "
+ "GENERIC_RELOC_LOCAL_SECTDIFF.");
+
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "-";
+ printRelocationTargetName(this, RENext, fmt);
+ break;
+ }
+ case MachO::GENERIC_RELOC_TLV: {
+ printRelocationTargetName(this, RE, fmt);
+ fmt << "@TLV";
+ if (IsPCRel) fmt << "P";
+ break;
+ }
+ default:
+ printRelocationTargetName(this, RE, fmt);
+ }
+ } else { // ARM-specific relocations
+ switch (Type) {
+ case MachO::ARM_RELOC_HALF:
+ case MachO::ARM_RELOC_HALF_SECTDIFF: {
+ // Half relocations steal a bit from the length field to encode
+ // whether this is an upper16 or a lower16 relocation.
+ bool isUpper = getAnyRelocationLength(RE) >> 1;
+
+ if (isUpper)
+ fmt << ":upper16:(";
+ else
+ fmt << ":lower16:(";
+ printRelocationTargetName(this, RE, fmt);
+
+ DataRefImpl RelNext = Rel;
+ RelNext.d.a++;
+ MachO::any_relocation_info RENext = getRelocation(RelNext);
+
+ // ARM half relocs must be followed by a relocation of type
+ // ARM_RELOC_PAIR.
+ unsigned RType = getAnyRelocationType(RENext);
+ if (RType != MachO::ARM_RELOC_PAIR)
+ report_fatal_error("Expected ARM_RELOC_PAIR after "
+ "ARM_RELOC_HALF");
+
+ // NOTE: The half of the target virtual address is stashed in the
+ // address field of the secondary relocation, but we can't reverse
+ // engineer the constant offset from it without decoding the movw/movt
+ // instruction to find the other half in its immediate field.
+
+ // ARM_RELOC_HALF_SECTDIFF encodes the second section in the
+ // symbol/section pointer of the follow-on relocation.
+ if (Type == MachO::ARM_RELOC_HALF_SECTDIFF) {
+ fmt << "-";
+ printRelocationTargetName(this, RENext, fmt);
+ }
+
+ fmt << ")";
+ break;
+ }
+ default: {
+ printRelocationTargetName(this, RE, fmt);
+ }
+ }
+ }
+ } else
+ printRelocationTargetName(this, RE, fmt);
- uint64_t Addr;
- StringRef Name;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ return object_error::success;
+}
- if ((ec = SI->getAddress(Addr)))
- report_fatal_error(ec.message());
- if (Addr != Val) continue;
- if ((ec = SI->getName(Name)))
- report_fatal_error(ec.message());
- fmt << Name;
- return;
- }
+error_code
+MachOObjectFile::getRelocationHidden(DataRefImpl Rel, bool &Result) const {
+ unsigned Arch = getArch();
+ uint64_t Type;
+ getRelocationType(Rel, Type);
- fmt << format("0x%x", Val);
- return;
+ Result = false;
+
+ // On arches that use the generic relocations, GENERIC_RELOC_PAIR
+ // is always hidden.
+ if (Arch == Triple::x86 || Arch == Triple::arm || Arch == Triple::ppc) {
+ if (Type == MachO::GENERIC_RELOC_PAIR) Result = true;
+ } else if (Arch == Triple::x86_64) {
+ // On x86_64, X86_64_RELOC_UNSIGNED is hidden only when it follows
+ // an X86_64_RELOC_SUBTRACTOR.
+ if (Type == MachO::X86_64_RELOC_UNSIGNED && Rel.d.a > 0) {
+ DataRefImpl RelPrev = Rel;
+ RelPrev.d.a--;
+ uint64_t PrevType;
+ getRelocationType(RelPrev, PrevType);
+ if (PrevType == MachO::X86_64_RELOC_SUBTRACTOR)
+ Result = true;
+ }
}
- StringRef S;
- bool isExtern = (RE->Word1 >> 27) & 1;
- uint32_t Val = RE->Word1 & 0xFFFFFF;
+ return object_error::success;
+}
- if (isExtern) {
- symbol_iterator SI = begin_symbols();
- advanceTo(SI, Val);
- SI->getName(S);
- } else {
- section_iterator SI = begin_sections();
- advanceTo(SI, Val);
- SI->getName(S);
- }
+error_code MachOObjectFile::getLibraryNext(DataRefImpl LibData,
+ LibraryRef &Res) const {
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
- fmt << S;
+error_code MachOObjectFile::getLibraryPath(DataRefImpl LibData,
+ StringRef &Res) const {
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
}
-error_code MachOObjectFileBase::getLibraryNext(DataRefImpl LibData,
- LibraryRef &Res) const {
- report_fatal_error("Needed libraries unimplemented in MachOObjectFileBase");
+symbol_iterator MachOObjectFile::begin_symbols() const {
+ DataRefImpl DRI;
+ if (!SymtabLoadCmd)
+ return symbol_iterator(SymbolRef(DRI, this));
+
+ MachO::symtab_command Symtab = getSymtabLoadCommand();
+ DRI.p = reinterpret_cast<uintptr_t>(getPtr(this, Symtab.symoff));
+ return symbol_iterator(SymbolRef(DRI, this));
}
-error_code MachOObjectFileBase::getLibraryPath(DataRefImpl LibData,
- StringRef &Res) const {
- report_fatal_error("Needed libraries unimplemented in MachOObjectFileBase");
+symbol_iterator MachOObjectFile::end_symbols() const {
+ DataRefImpl DRI;
+ if (!SymtabLoadCmd)
+ return symbol_iterator(SymbolRef(DRI, this));
+
+ MachO::symtab_command Symtab = getSymtabLoadCommand();
+ unsigned SymbolTableEntrySize = is64Bit() ?
+ sizeof(MachO::nlist_64) :
+ sizeof(MachO::nlist);
+ unsigned Offset = Symtab.symoff +
+ Symtab.nsyms * SymbolTableEntrySize;
+ DRI.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
+ return symbol_iterator(SymbolRef(DRI, this));
}
+symbol_iterator MachOObjectFile::begin_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in MachOObjectFile");
+}
-/*===-- Miscellaneous -----------------------------------------------------===*/
+symbol_iterator MachOObjectFile::end_dynamic_symbols() const {
+ // TODO: implement
+ report_fatal_error("Dynamic symbols unimplemented in MachOObjectFile");
+}
+
+section_iterator MachOObjectFile::begin_sections() const {
+ DataRefImpl DRI;
+ return section_iterator(SectionRef(DRI, this));
+}
+
+section_iterator MachOObjectFile::end_sections() const {
+ DataRefImpl DRI;
+ DRI.d.a = Sections.size();
+ return section_iterator(SectionRef(DRI, this));
+}
+
+library_iterator MachOObjectFile::begin_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
+
+library_iterator MachOObjectFile::end_libraries_needed() const {
+ // TODO: implement
+ report_fatal_error("Needed libraries unimplemented in MachOObjectFile");
+}
-uint8_t MachOObjectFileBase::getBytesInAddress() const {
+uint8_t MachOObjectFile::getBytesInAddress() const {
return is64Bit() ? 8 : 4;
}
-StringRef MachOObjectFileBase::getFileFormatName() const {
+StringRef MachOObjectFile::getFileFormatName() const {
+ unsigned CPUType = getCPUType(this);
if (!is64Bit()) {
- switch (getHeader()->CPUType) {
- case llvm::MachO::CPUTypeI386:
+ switch (CPUType) {
+ case llvm::MachO::CPU_TYPE_I386:
return "Mach-O 32-bit i386";
- case llvm::MachO::CPUTypeARM:
+ case llvm::MachO::CPU_TYPE_ARM:
return "Mach-O arm";
- case llvm::MachO::CPUTypePowerPC:
+ case llvm::MachO::CPU_TYPE_POWERPC:
return "Mach-O 32-bit ppc";
default:
- assert((getHeader()->CPUType & llvm::MachO::CPUArchABI64) == 0 &&
+ assert((CPUType & llvm::MachO::CPU_ARCH_ABI64) == 0 &&
"64-bit object file when we're not 64-bit?");
return "Mach-O 32-bit unknown";
}
}
// Make sure the cpu type has the correct mask.
- assert((getHeader()->CPUType & llvm::MachO::CPUArchABI64)
- == llvm::MachO::CPUArchABI64 &&
- "32-bit object file when we're 64-bit?");
+ assert((CPUType & llvm::MachO::CPU_ARCH_ABI64)
+ == llvm::MachO::CPU_ARCH_ABI64 &&
+ "32-bit object file when we're 64-bit?");
- switch (getHeader()->CPUType) {
- case llvm::MachO::CPUTypeX86_64:
+ switch (CPUType) {
+ case llvm::MachO::CPU_TYPE_X86_64:
return "Mach-O 64-bit x86-64";
- case llvm::MachO::CPUTypePowerPC64:
+ case llvm::MachO::CPU_TYPE_POWERPC64:
return "Mach-O 64-bit ppc64";
default:
return "Mach-O 64-bit unknown";
}
}
-unsigned MachOObjectFileBase::getArch() const {
- switch (getHeader()->CPUType) {
- case llvm::MachO::CPUTypeI386:
+Triple::ArchType MachOObjectFile::getArch(uint32_t CPUType) {
+ switch (CPUType) {
+ case llvm::MachO::CPU_TYPE_I386:
return Triple::x86;
- case llvm::MachO::CPUTypeX86_64:
+ case llvm::MachO::CPU_TYPE_X86_64:
return Triple::x86_64;
- case llvm::MachO::CPUTypeARM:
+ case llvm::MachO::CPU_TYPE_ARM:
return Triple::arm;
- case llvm::MachO::CPUTypePowerPC:
+ case llvm::MachO::CPU_TYPE_POWERPC:
return Triple::ppc;
- case llvm::MachO::CPUTypePowerPC64:
+ case llvm::MachO::CPU_TYPE_POWERPC64:
return Triple::ppc64;
default:
return Triple::UnknownArch;
}
}
+unsigned MachOObjectFile::getArch() const {
+ return getArch(getCPUType(this));
+}
+
+StringRef MachOObjectFile::getLoadName() const {
+ // TODO: Implement
+ report_fatal_error("get_load_name() unimplemented in MachOObjectFile");
+}
+
+relocation_iterator MachOObjectFile::section_rel_begin(unsigned Index) const {
+ DataRefImpl DRI;
+ DRI.d.a = Index;
+ return section_rel_begin(DRI);
+}
+
+relocation_iterator MachOObjectFile::section_rel_end(unsigned Index) const {
+ DataRefImpl DRI;
+ DRI.d.a = Index;
+ return section_rel_end(DRI);
+}
+
+dice_iterator MachOObjectFile::begin_dices() const {
+ DataRefImpl DRI;
+ if (!DataInCodeLoadCmd)
+ return dice_iterator(DiceRef(DRI, this));
+
+ MachO::linkedit_data_command DicLC = getDataInCodeLoadCommand();
+ DRI.p = reinterpret_cast<uintptr_t>(getPtr(this, DicLC.dataoff));
+ return dice_iterator(DiceRef(DRI, this));
+}
+
+dice_iterator MachOObjectFile::end_dices() const {
+ DataRefImpl DRI;
+ if (!DataInCodeLoadCmd)
+ return dice_iterator(DiceRef(DRI, this));
+
+ MachO::linkedit_data_command DicLC = getDataInCodeLoadCommand();
+ unsigned Offset = DicLC.dataoff + DicLC.datasize;
+ DRI.p = reinterpret_cast<uintptr_t>(getPtr(this, Offset));
+ return dice_iterator(DiceRef(DRI, this));
+}
+
+StringRef
+MachOObjectFile::getSectionFinalSegmentName(DataRefImpl Sec) const {
+ ArrayRef<char> Raw = getSectionRawFinalSegmentName(Sec);
+ return parseSegmentOrSectionName(Raw.data());
+}
+
+ArrayRef<char>
+MachOObjectFile::getSectionRawName(DataRefImpl Sec) const {
+ const section_base *Base =
+ reinterpret_cast<const section_base *>(Sections[Sec.d.a]);
+ return ArrayRef<char>(Base->sectname);
+}
+
+ArrayRef<char>
+MachOObjectFile::getSectionRawFinalSegmentName(DataRefImpl Sec) const {
+ const section_base *Base =
+ reinterpret_cast<const section_base *>(Sections[Sec.d.a]);
+ return ArrayRef<char>(Base->segname);
+}
+
+bool
+MachOObjectFile::isRelocationScattered(const MachO::any_relocation_info &RE)
+ const {
+ if (getCPUType(this) == MachO::CPU_TYPE_X86_64)
+ return false;
+ return getPlainRelocationAddress(RE) & MachO::R_SCATTERED;
+}
+
+unsigned MachOObjectFile::getPlainRelocationSymbolNum(
+ const MachO::any_relocation_info &RE) const {
+ if (isLittleEndian())
+ return RE.r_word1 & 0xffffff;
+ return RE.r_word1 >> 8;
+}
+
+bool MachOObjectFile::getPlainRelocationExternal(
+ const MachO::any_relocation_info &RE) const {
+ if (isLittleEndian())
+ return (RE.r_word1 >> 27) & 1;
+ return (RE.r_word1 >> 4) & 1;
+}
+
+bool MachOObjectFile::getScatteredRelocationScattered(
+ const MachO::any_relocation_info &RE) const {
+ return RE.r_word0 >> 31;
+}
+
+uint32_t MachOObjectFile::getScatteredRelocationValue(
+ const MachO::any_relocation_info &RE) const {
+ return RE.r_word1;
+}
+
+unsigned MachOObjectFile::getAnyRelocationAddress(
+ const MachO::any_relocation_info &RE) const {
+ if (isRelocationScattered(RE))
+ return getScatteredRelocationAddress(RE);
+ return getPlainRelocationAddress(RE);
+}
+
+unsigned MachOObjectFile::getAnyRelocationPCRel(
+ const MachO::any_relocation_info &RE) const {
+ if (isRelocationScattered(RE))
+ return getScatteredRelocationPCRel(this, RE);
+ return getPlainRelocationPCRel(this, RE);
+}
+
+unsigned MachOObjectFile::getAnyRelocationLength(
+ const MachO::any_relocation_info &RE) const {
+ if (isRelocationScattered(RE))
+ return getScatteredRelocationLength(RE);
+ return getPlainRelocationLength(this, RE);
+}
+
+unsigned
+MachOObjectFile::getAnyRelocationType(
+ const MachO::any_relocation_info &RE) const {
+ if (isRelocationScattered(RE))
+ return getScatteredRelocationType(RE);
+ return getPlainRelocationType(this, RE);
+}
+
+SectionRef
+MachOObjectFile::getRelocationSection(
+ const MachO::any_relocation_info &RE) const {
+ if (isRelocationScattered(RE) || getPlainRelocationExternal(RE))
+ return *end_sections();
+ unsigned SecNum = getPlainRelocationSymbolNum(RE) - 1;
+ DataRefImpl DRI;
+ DRI.d.a = SecNum;
+ return SectionRef(DRI, this);
+}
+
+MachOObjectFile::LoadCommandInfo
+MachOObjectFile::getFirstLoadCommandInfo() const {
+ MachOObjectFile::LoadCommandInfo Load;
+
+ unsigned HeaderSize = is64Bit() ? sizeof(MachO::mach_header_64) :
+ sizeof(MachO::mach_header);
+ Load.Ptr = getPtr(this, HeaderSize);
+ Load.C = getStruct<MachO::load_command>(this, Load.Ptr);
+ return Load;
+}
+
+MachOObjectFile::LoadCommandInfo
+MachOObjectFile::getNextLoadCommandInfo(const LoadCommandInfo &L) const {
+ MachOObjectFile::LoadCommandInfo Next;
+ Next.Ptr = L.Ptr + L.C.cmdsize;
+ Next.C = getStruct<MachO::load_command>(this, Next.Ptr);
+ return Next;
+}
+
+MachO::section MachOObjectFile::getSection(DataRefImpl DRI) const {
+ return getStruct<MachO::section>(this, Sections[DRI.d.a]);
+}
+
+MachO::section_64 MachOObjectFile::getSection64(DataRefImpl DRI) const {
+ return getStruct<MachO::section_64>(this, Sections[DRI.d.a]);
+}
+
+MachO::section MachOObjectFile::getSection(const LoadCommandInfo &L,
+ unsigned Index) const {
+ const char *Sec = getSectionPtr(this, L, Index);
+ return getStruct<MachO::section>(this, Sec);
+}
+
+MachO::section_64 MachOObjectFile::getSection64(const LoadCommandInfo &L,
+ unsigned Index) const {
+ const char *Sec = getSectionPtr(this, L, Index);
+ return getStruct<MachO::section_64>(this, Sec);
+}
+
+MachO::nlist
+MachOObjectFile::getSymbolTableEntry(DataRefImpl DRI) const {
+ const char *P = reinterpret_cast<const char *>(DRI.p);
+ return getStruct<MachO::nlist>(this, P);
+}
+
+MachO::nlist_64
+MachOObjectFile::getSymbol64TableEntry(DataRefImpl DRI) const {
+ const char *P = reinterpret_cast<const char *>(DRI.p);
+ return getStruct<MachO::nlist_64>(this, P);
+}
+
+MachO::linkedit_data_command
+MachOObjectFile::getLinkeditDataLoadCommand(const LoadCommandInfo &L) const {
+ return getStruct<MachO::linkedit_data_command>(this, L.Ptr);
+}
+
+MachO::segment_command
+MachOObjectFile::getSegmentLoadCommand(const LoadCommandInfo &L) const {
+ return getStruct<MachO::segment_command>(this, L.Ptr);
+}
+
+MachO::segment_command_64
+MachOObjectFile::getSegment64LoadCommand(const LoadCommandInfo &L) const {
+ return getStruct<MachO::segment_command_64>(this, L.Ptr);
+}
+
+MachO::linker_options_command
+MachOObjectFile::getLinkerOptionsLoadCommand(const LoadCommandInfo &L) const {
+ return getStruct<MachO::linker_options_command>(this, L.Ptr);
+}
+
+MachO::any_relocation_info
+MachOObjectFile::getRelocation(DataRefImpl Rel) const {
+ const char *P = reinterpret_cast<const char *>(Rel.p);
+ return getStruct<MachO::any_relocation_info>(this, P);
+}
+
+MachO::data_in_code_entry
+MachOObjectFile::getDice(DataRefImpl Rel) const {
+ const char *P = reinterpret_cast<const char *>(Rel.p);
+ return getStruct<MachO::data_in_code_entry>(this, P);
+}
+
+MachO::mach_header MachOObjectFile::getHeader() const {
+ return getStruct<MachO::mach_header>(this, getPtr(this, 0));
+}
+
+MachO::mach_header_64 MachOObjectFile::getHeader64() const {
+ return getStruct<MachO::mach_header_64>(this, getPtr(this, 0));
+}
+
+uint32_t MachOObjectFile::getIndirectSymbolTableEntry(
+ const MachO::dysymtab_command &DLC,
+ unsigned Index) const {
+ uint64_t Offset = DLC.indirectsymoff + Index * sizeof(uint32_t);
+ return getStruct<uint32_t>(this, getPtr(this, Offset));
+}
+
+MachO::data_in_code_entry
+MachOObjectFile::getDataInCodeTableEntry(uint32_t DataOffset,
+ unsigned Index) const {
+ uint64_t Offset = DataOffset + Index * sizeof(MachO::data_in_code_entry);
+ return getStruct<MachO::data_in_code_entry>(this, getPtr(this, Offset));
+}
+
+MachO::symtab_command MachOObjectFile::getSymtabLoadCommand() const {
+ return getStruct<MachO::symtab_command>(this, SymtabLoadCmd);
+}
+
+MachO::dysymtab_command MachOObjectFile::getDysymtabLoadCommand() const {
+ return getStruct<MachO::dysymtab_command>(this, DysymtabLoadCmd);
+}
+
+MachO::linkedit_data_command
+MachOObjectFile::getDataInCodeLoadCommand() const {
+ if (DataInCodeLoadCmd)
+ return getStruct<MachO::linkedit_data_command>(this, DataInCodeLoadCmd);
+
+ // If there is no DataInCodeLoadCmd return a load command with zero'ed fields.
+ MachO::linkedit_data_command Cmd;
+ Cmd.cmd = MachO::LC_DATA_IN_CODE;
+ Cmd.cmdsize = sizeof(MachO::linkedit_data_command);
+ Cmd.dataoff = 0;
+ Cmd.datasize = 0;
+ return Cmd;
+}
+
+StringRef MachOObjectFile::getStringTableData() const {
+ MachO::symtab_command S = getSymtabLoadCommand();
+ return getData().substr(S.stroff, S.strsize);
+}
+
+bool MachOObjectFile::is64Bit() const {
+ return getType() == getMachOType(false, true) ||
+ getType() == getMachOType(true, true);
+}
+
+void MachOObjectFile::ReadULEB128s(uint64_t Index,
+ SmallVectorImpl<uint64_t> &Out) const {
+ DataExtractor extractor(ObjectFile::getData(), true, 0);
+
+ uint32_t offset = Index;
+ uint64_t data = 0;
+ while (uint64_t delta = extractor.getULEB128(&offset)) {
+ data += delta;
+ Out.push_back(data);
+ }
+}
+
+ObjectFile *ObjectFile::createMachOObjectFile(MemoryBuffer *Buffer) {
+ StringRef Magic = Buffer->getBuffer().slice(0, 4);
+ error_code ec;
+ OwningPtr<ObjectFile> Ret;
+ if (Magic == "\xFE\xED\xFA\xCE")
+ Ret.reset(new MachOObjectFile(Buffer, false, false, ec));
+ else if (Magic == "\xCE\xFA\xED\xFE")
+ Ret.reset(new MachOObjectFile(Buffer, true, false, ec));
+ else if (Magic == "\xFE\xED\xFA\xCF")
+ Ret.reset(new MachOObjectFile(Buffer, false, true, ec));
+ else if (Magic == "\xCF\xFA\xED\xFE")
+ Ret.reset(new MachOObjectFile(Buffer, true, true, ec));
+ else {
+ delete Buffer;
+ return NULL;
+ }
+
+ if (ec)
+ return NULL;
+ return Ret.take();
+}
+
} // end namespace object
} // end namespace llvm
projects / oota-llvm.git / blobdiff