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diff --git a/contrib/llvm/include/llvm/Object/ELFObjectFile.h b/contrib/llvm/include/llvm/Object/ELFObjectFile.h
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+//===- ELFObjectFile.h - ELF object file implementation ---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the ELFObjectFile template class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_ELFOBJECTFILE_H
+#define LLVM_OBJECT_ELFOBJECTFILE_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/PointerIntPair.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/Object/ELF.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/ELF.h"
+#include "llvm/Support/Endian.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <algorithm>
+#include <cctype>
+#include <limits>
+#include <utility>
+
+namespace llvm {
+namespace object {
+
+class ELFObjectFileBase : public ObjectFile {
+protected:
+ ELFObjectFileBase(unsigned int Type, MemoryBufferRef Source);
+
+public:
+ virtual std::error_code getRelocationAddend(DataRefImpl Rel,
+ int64_t &Res) const = 0;
+ virtual std::pair<symbol_iterator, symbol_iterator>
+ getELFDynamicSymbolIterators() const = 0;
+
+ virtual std::error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
+ bool &IsDefault) const = 0;
+
+ virtual uint64_t getSectionFlags(SectionRef Sec) const = 0;
+ virtual uint32_t getSectionType(SectionRef Sec) const = 0;
+
+ static inline bool classof(const Binary *v) { return v->isELF(); }
+};
+
+template <class ELFT> class ELFObjectFile : public ELFObjectFileBase {
+public:
+ LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
+
+ typedef typename ELFFile<ELFT>::uintX_t uintX_t;
+
+ typedef typename ELFFile<ELFT>::Elf_Sym Elf_Sym;
+ typedef typename ELFFile<ELFT>::Elf_Shdr Elf_Shdr;
+ typedef typename ELFFile<ELFT>::Elf_Ehdr Elf_Ehdr;
+ typedef typename ELFFile<ELFT>::Elf_Rel Elf_Rel;
+ typedef typename ELFFile<ELFT>::Elf_Rela Elf_Rela;
+ typedef typename ELFFile<ELFT>::Elf_Dyn Elf_Dyn;
+
+ typedef typename ELFFile<ELFT>::Elf_Sym_Iter Elf_Sym_Iter;
+ typedef typename ELFFile<ELFT>::Elf_Shdr_Iter Elf_Shdr_Iter;
+ typedef typename ELFFile<ELFT>::Elf_Dyn_Iter Elf_Dyn_Iter;
+
+protected:
+ ELFFile<ELFT> EF;
+
+ void moveSymbolNext(DataRefImpl &Symb) const override;
+ std::error_code getSymbolName(DataRefImpl Symb,
+ StringRef &Res) const override;
+ std::error_code getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Res) const override;
+ std::error_code getSymbolAlignment(DataRefImpl Symb,
+ uint32_t &Res) const override;
+ std::error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const override;
+ uint32_t getSymbolFlags(DataRefImpl Symb) const override;
+ std::error_code getSymbolOther(DataRefImpl Symb, uint8_t &Res) const override;
+ std::error_code getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Res) const override;
+ std::error_code getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const override;
+
+ void moveSectionNext(DataRefImpl &Sec) const override;
+ std::error_code getSectionName(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAddress(DataRefImpl Sec) const override;
+ uint64_t getSectionSize(DataRefImpl Sec) const override;
+ std::error_code getSectionContents(DataRefImpl Sec,
+ StringRef &Res) const override;
+ uint64_t getSectionAlignment(DataRefImpl Sec) const override;
+ bool isSectionText(DataRefImpl Sec) const override;
+ bool isSectionData(DataRefImpl Sec) const override;
+ bool isSectionBSS(DataRefImpl Sec) const override;
+ bool isSectionVirtual(DataRefImpl Sec) const override;
+ bool sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb) const override;
+ relocation_iterator section_rel_begin(DataRefImpl Sec) const override;
+ relocation_iterator section_rel_end(DataRefImpl Sec) const override;
+ section_iterator getRelocatedSection(DataRefImpl Sec) const override;
+
+ void moveRelocationNext(DataRefImpl &Rel) const override;
+ std::error_code getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ std::error_code getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
+ std::error_code getRelocationType(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ std::error_code
+ getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const override;
+ std::error_code
+ getRelocationValueString(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const override;
+
+ uint64_t getROffset(DataRefImpl Rel) const;
+ StringRef getRelocationTypeName(uint32_t Type) const;
+
+ /// \brief Get the relocation section that contains \a Rel.
+ const Elf_Shdr *getRelSection(DataRefImpl Rel) const {
+ return EF.getSection(Rel.d.a);
+ }
+
+ const Elf_Rel *getRel(DataRefImpl Rel) const;
+ const Elf_Rela *getRela(DataRefImpl Rela) const;
+
+ Elf_Sym_Iter toELFSymIter(DataRefImpl Symb) const {
+ bool IsDynamic = Symb.p & 1;
+ if (IsDynamic)
+ return Elf_Sym_Iter(
+ EF.begin_dynamic_symbols().getEntSize(),
+ reinterpret_cast<const char *>(Symb.p & ~uintptr_t(1)), IsDynamic);
+ return Elf_Sym_Iter(EF.begin_symbols().getEntSize(),
+ reinterpret_cast<const char *>(Symb.p), IsDynamic);
+ }
+
+ DataRefImpl toDRI(Elf_Sym_Iter Symb) const {
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(Symb.get()) |
+ static_cast<uintptr_t>(Symb.isDynamic());
+ return DRI;
+ }
+
+ Elf_Shdr_Iter toELFShdrIter(DataRefImpl Sec) const {
+ return Elf_Shdr_Iter(EF.getHeader()->e_shentsize,
+ reinterpret_cast<const char *>(Sec.p));
+ }
+
+ DataRefImpl toDRI(Elf_Shdr_Iter Sec) const {
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(Sec.get());
+ return DRI;
+ }
+
+ DataRefImpl toDRI(const Elf_Shdr *Sec) const {
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(Sec);
+ return DRI;
+ }
+
+ Elf_Dyn_Iter toELFDynIter(DataRefImpl Dyn) const {
+ return Elf_Dyn_Iter(EF.begin_dynamic_table().getEntSize(),
+ reinterpret_cast<const char *>(Dyn.p));
+ }
+
+ DataRefImpl toDRI(Elf_Dyn_Iter Dyn) const {
+ DataRefImpl DRI;
+ DRI.p = reinterpret_cast<uintptr_t>(Dyn.get());
+ return DRI;
+ }
+
+ // This flag is used for classof, to distinguish ELFObjectFile from
+ // its subclass. If more subclasses will be created, this flag will
+ // have to become an enum.
+ bool isDyldELFObject;
+
+public:
+ ELFObjectFile(MemoryBufferRef Object, std::error_code &EC);
+
+ const Elf_Sym *getSymbol(DataRefImpl Symb) const;
+
+ basic_symbol_iterator symbol_begin_impl() const override;
+ basic_symbol_iterator symbol_end_impl() const override;
+
+ symbol_iterator dynamic_symbol_begin() const;
+ symbol_iterator dynamic_symbol_end() const;
+
+ section_iterator section_begin() const override;
+ section_iterator section_end() const override;
+
+ std::error_code getRelocationAddend(DataRefImpl Rel,
+ int64_t &Res) const override;
+ std::error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
+ bool &IsDefault) const override;
+
+ uint64_t getSectionFlags(SectionRef Sec) const override;
+ uint32_t getSectionType(SectionRef Sec) const override;
+
+ uint8_t getBytesInAddress() const override;
+ StringRef getFileFormatName() const override;
+ unsigned getArch() const override;
+ StringRef getLoadName() const;
+
+ std::error_code getPlatformFlags(unsigned &Result) const override {
+ Result = EF.getHeader()->e_flags;
+ return object_error::success;
+ }
+
+ const ELFFile<ELFT> *getELFFile() const { return &EF; }
+
+ bool isDyldType() const { return isDyldELFObject; }
+ static inline bool classof(const Binary *v) {
+ return v->getType() == getELFType(ELFT::TargetEndianness == support::little,
+ ELFT::Is64Bits);
+ }
+
+ std::pair<symbol_iterator, symbol_iterator>
+ getELFDynamicSymbolIterators() const override;
+
+ bool isRelocatableObject() const override;
+};
+
+// Use an alignment of 2 for the typedefs since that is the worst case for
+// ELF files in archives.
+typedef ELFObjectFile<ELFType<support::little, 2, false> > ELF32LEObjectFile;
+typedef ELFObjectFile<ELFType<support::little, 2, true> > ELF64LEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, 2, false> > ELF32BEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, 2, true> > ELF64BEObjectFile;
+
+template <class ELFT>
+void ELFObjectFile<ELFT>::moveSymbolNext(DataRefImpl &Symb) const {
+ Symb = toDRI(++toELFSymIter(Symb));
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
+ StringRef &Result) const {
+ ErrorOr<StringRef> Name = EF.getSymbolName(toELFSymIter(Symb));
+ if (!Name)
+ return Name.getError();
+ Result = *Name;
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
+ StringRef &Version,
+ bool &IsDefault) const {
+ DataRefImpl Symb = SymRef.getRawDataRefImpl();
+ const Elf_Sym *symb = getSymbol(Symb);
+ ErrorOr<StringRef> Ver =
+ EF.getSymbolVersion(EF.getSection(Symb.d.b), symb, IsDefault);
+ if (!Ver)
+ return Ver.getError();
+ Version = *Ver;
+ return object_error::success;
+}
+
+template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getSectionFlags(SectionRef Sec) const {
+ DataRefImpl DRI = Sec.getRawDataRefImpl();
+ return toELFShdrIter(DRI)->sh_flags;
+}
+
+template <class ELFT>
+uint32_t ELFObjectFile<ELFT>::getSectionType(SectionRef Sec) const {
+ DataRefImpl DRI = Sec.getRawDataRefImpl();
+ return toELFShdrIter(DRI)->sh_type;
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Result) const {
+ const Elf_Sym *ESym = getSymbol(Symb);
+ switch (EF.getSymbolTableIndex(ESym)) {
+ case ELF::SHN_COMMON:
+ case ELF::SHN_UNDEF:
+ Result = UnknownAddressOrSize;
+ return object_error::success;
+ case ELF::SHN_ABS:
+ Result = ESym->st_value;
+ return object_error::success;
+ default:
+ break;
+ }
+
+ const Elf_Ehdr *Header = EF.getHeader();
+ Result = ESym->st_value;
+
+ // Clear the ARM/Thumb or microMIPS indicator flag.
+ if ((Header->e_machine == ELF::EM_ARM || Header->e_machine == ELF::EM_MIPS) &&
+ ESym->getType() == ELF::STT_FUNC)
+ Result &= ~1;
+
+ if (Header->e_type == ELF::ET_REL)
+ Result += EF.getSection(ESym)->sh_addr;
+
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
+ uint32_t &Res) const {
+ Elf_Sym_Iter Sym = toELFSymIter(Symb);
+ if (Sym->st_shndx == ELF::SHN_COMMON)
+ Res = Sym->st_value;
+ else
+ Res = 0;
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
+ uint64_t &Result) const {
+ Result = toELFSymIter(Symb)->st_size;
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSymbolOther(DataRefImpl Symb,
+ uint8_t &Result) const {
+ Result = toELFSymIter(Symb)->st_other;
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Result) const {
+ const Elf_Sym *ESym = getSymbol(Symb);
+
+ switch (ESym->getType()) {
+ case ELF::STT_NOTYPE:
+ Result = SymbolRef::ST_Unknown;
+ break;
+ case ELF::STT_SECTION:
+ Result = SymbolRef::ST_Debug;
+ break;
+ case ELF::STT_FILE:
+ Result = SymbolRef::ST_File;
+ break;
+ case ELF::STT_FUNC:
+ Result = SymbolRef::ST_Function;
+ break;
+ case ELF::STT_OBJECT:
+ case ELF::STT_COMMON:
+ case ELF::STT_TLS:
+ Result = SymbolRef::ST_Data;
+ break;
+ default:
+ Result = SymbolRef::ST_Other;
+ break;
+ }
+ return object_error::success;
+}
+
+template <class ELFT>
+uint32_t ELFObjectFile<ELFT>::getSymbolFlags(DataRefImpl Symb) const {
+ Elf_Sym_Iter EIter = toELFSymIter(Symb);
+ const Elf_Sym *ESym = &*EIter;
+
+ uint32_t Result = SymbolRef::SF_None;
+
+ if (ESym->getBinding() != ELF::STB_LOCAL)
+ Result |= SymbolRef::SF_Global;
+
+ if (ESym->getBinding() == ELF::STB_WEAK)
+ Result |= SymbolRef::SF_Weak;
+
+ if (ESym->st_shndx == ELF::SHN_ABS)
+ Result |= SymbolRef::SF_Absolute;
+
+ if (ESym->getType() == ELF::STT_FILE || ESym->getType() == ELF::STT_SECTION ||
+ EIter == EF.begin_symbols() || EIter == EF.begin_dynamic_symbols())
+ Result |= SymbolRef::SF_FormatSpecific;
+
+ if (EF.getSymbolTableIndex(ESym) == ELF::SHN_UNDEF)
+ Result |= SymbolRef::SF_Undefined;
+
+ if (ESym->getType() == ELF::STT_COMMON ||
+ EF.getSymbolTableIndex(ESym) == ELF::SHN_COMMON)
+ Result |= SymbolRef::SF_Common;
+
+ return Result;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const {
+ const Elf_Sym *ESym = getSymbol(Symb);
+ const Elf_Shdr *ESec = EF.getSection(ESym);
+ if (!ESec)
+ Res = section_end();
+ else {
+ DataRefImpl Sec;
+ Sec.p = reinterpret_cast<intptr_t>(ESec);
+ Res = section_iterator(SectionRef(Sec, this));
+ }
+ return object_error::success;
+}
+
+template <class ELFT>
+void ELFObjectFile<ELFT>::moveSectionNext(DataRefImpl &Sec) const {
+ Sec = toDRI(++toELFShdrIter(Sec));
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
+ StringRef &Result) const {
+ ErrorOr<StringRef> Name = EF.getSectionName(&*toELFShdrIter(Sec));
+ if (!Name)
+ return Name.getError();
+ Result = *Name;
+ return object_error::success;
+}
+
+template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_addr;
+}
+
+template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_size;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
+ StringRef &Result) const {
+ Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
+ Result = StringRef((const char *)base() + EShdr->sh_offset, EShdr->sh_size);
+ return object_error::success;
+}
+
+template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_addralign;
+}
+
+template <class ELFT>
+bool ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_flags & ELF::SHF_EXECINSTR;
+}
+
+template <class ELFT>
+bool ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec) const {
+ Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
+ return EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
+ EShdr->sh_type == ELF::SHT_PROGBITS;
+}
+
+template <class ELFT>
+bool ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec) const {
+ Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
+ return EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
+ EShdr->sh_type == ELF::SHT_NOBITS;
+}
+
+template <class ELFT>
+bool ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_type == ELF::SHT_NOBITS;
+}
+
+template <class ELFT>
+bool ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
+ DataRefImpl Symb) const {
+ Elf_Sym_Iter ESym = toELFSymIter(Symb);
+
+ uintX_t Index = ESym->st_shndx;
+ bool Reserved = Index >= ELF::SHN_LORESERVE && Index <= ELF::SHN_HIRESERVE;
+
+ return !Reserved && (&*toELFShdrIter(Sec) == EF.getSection(ESym->st_shndx));
+}
+
+template <class ELFT>
+relocation_iterator
+ELFObjectFile<ELFT>::section_rel_begin(DataRefImpl Sec) const {
+ DataRefImpl RelData;
+ uintptr_t SHT = reinterpret_cast<uintptr_t>(EF.begin_sections().get());
+ RelData.d.a = (Sec.p - SHT) / EF.getHeader()->e_shentsize;
+ RelData.d.b = 0;
+ return relocation_iterator(RelocationRef(RelData, this));
+}
+
+template <class ELFT>
+relocation_iterator
+ELFObjectFile<ELFT>::section_rel_end(DataRefImpl Sec) const {
+ DataRefImpl RelData;
+ uintptr_t SHT = reinterpret_cast<uintptr_t>(EF.begin_sections().get());
+ const Elf_Shdr *S = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+ RelData.d.a = (Sec.p - SHT) / EF.getHeader()->e_shentsize;
+ if (S->sh_type != ELF::SHT_RELA && S->sh_type != ELF::SHT_REL)
+ RelData.d.b = 0;
+ else
+ RelData.d.b = S->sh_size / S->sh_entsize;
+
+ return relocation_iterator(RelocationRef(RelData, this));
+}
+
+template <class ELFT>
+section_iterator
+ELFObjectFile<ELFT>::getRelocatedSection(DataRefImpl Sec) const {
+ if (EF.getHeader()->e_type != ELF::ET_REL)
+ return section_end();
+
+ Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
+ uintX_t Type = EShdr->sh_type;
+ if (Type != ELF::SHT_REL && Type != ELF::SHT_RELA)
+ return section_end();
+
+ const Elf_Shdr *R = EF.getSection(EShdr->sh_info);
+ return section_iterator(SectionRef(toDRI(R), this));
+}
+
+// Relocations
+template <class ELFT>
+void ELFObjectFile<ELFT>::moveRelocationNext(DataRefImpl &Rel) const {
+ ++Rel.d.b;
+}
+
+template <class ELFT>
+symbol_iterator
+ELFObjectFile<ELFT>::getRelocationSymbol(DataRefImpl Rel) const {
+ uint32_t symbolIdx;
+ const Elf_Shdr *sec = getRelSection(Rel);
+ switch (sec->sh_type) {
+ default:
+ report_fatal_error("Invalid section type in Rel!");
+ case ELF::SHT_REL: {
+ symbolIdx = getRel(Rel)->getSymbol(EF.isMips64EL());
+ break;
+ }
+ case ELF::SHT_RELA: {
+ symbolIdx = getRela(Rel)->getSymbol(EF.isMips64EL());
+ break;
+ }
+ }
+ if (!symbolIdx)
+ return symbol_end();
+
+ const Elf_Shdr *SymSec = EF.getSection(sec->sh_link);
+
+ DataRefImpl SymbolData;
+ switch (SymSec->sh_type) {
+ default:
+ report_fatal_error("Invalid symbol table section type!");
+ case ELF::SHT_SYMTAB:
+ SymbolData = toDRI(EF.begin_symbols() + symbolIdx);
+ break;
+ case ELF::SHT_DYNSYM:
+ SymbolData = toDRI(EF.begin_dynamic_symbols() + symbolIdx);
+ break;
+ }
+
+ return symbol_iterator(SymbolRef(SymbolData, this));
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Result) const {
+ uint64_t ROffset = getROffset(Rel);
+ const Elf_Ehdr *Header = EF.getHeader();
+
+ if (Header->e_type == ELF::ET_REL) {
+ const Elf_Shdr *RelocationSec = getRelSection(Rel);
+ const Elf_Shdr *RelocatedSec = EF.getSection(RelocationSec->sh_info);
+ Result = ROffset + RelocatedSec->sh_addr;
+ } else {
+ Result = ROffset;
+ }
+
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
+ uint64_t &Result) const {
+ assert(EF.getHeader()->e_type == ELF::ET_REL &&
+ "Only relocatable object files have relocation offsets");
+ Result = getROffset(Rel);
+ return object_error::success;
+}
+
+template <class ELFT>
+uint64_t ELFObjectFile<ELFT>::getROffset(DataRefImpl Rel) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ switch (sec->sh_type) {
+ default:
+ report_fatal_error("Invalid section type in Rel!");
+ case ELF::SHT_REL:
+ return getRel(Rel)->r_offset;
+ case ELF::SHT_RELA:
+ return getRela(Rel)->r_offset;
+ }
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
+ uint64_t &Result) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ switch (sec->sh_type) {
+ default:
+ report_fatal_error("Invalid section type in Rel!");
+ case ELF::SHT_REL: {
+ Result = getRel(Rel)->getType(EF.isMips64EL());
+ break;
+ }
+ case ELF::SHT_RELA: {
+ Result = getRela(Rel)->getType(EF.isMips64EL());
+ break;
+ }
+ }
+ return object_error::success;
+}
+
+template <class ELFT>
+StringRef ELFObjectFile<ELFT>::getRelocationTypeName(uint32_t Type) const {
+ return getELFRelocationTypeName(EF.getHeader()->e_machine, Type);
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getRelocationTypeName(
+ DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ uint32_t type;
+ switch (sec->sh_type) {
+ default:
+ return object_error::parse_failed;
+ case ELF::SHT_REL: {
+ type = getRel(Rel)->getType(EF.isMips64EL());
+ break;
+ }
+ case ELF::SHT_RELA: {
+ type = getRela(Rel)->getType(EF.isMips64EL());
+ break;
+ }
+ }
+
+ EF.getRelocationTypeName(type, Result);
+ return object_error::success;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getRelocationAddend(DataRefImpl Rel,
+ int64_t &Result) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ switch (sec->sh_type) {
+ default:
+ report_fatal_error("Invalid section type in Rel!");
+ case ELF::SHT_REL: {
+ Result = 0;
+ return object_error::success;
+ }
+ case ELF::SHT_RELA: {
+ Result = getRela(Rel)->r_addend;
+ return object_error::success;
+ }
+ }
+}
+
+template <class ELFT>
+std::error_code ELFObjectFile<ELFT>::getRelocationValueString(
+ DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
+ const Elf_Shdr *sec = getRelSection(Rel);
+ uint8_t type;
+ StringRef res;
+ int64_t addend = 0;
+ uint16_t symbol_index = 0;
+ switch (sec->sh_type) {
+ default:
+ return object_error::parse_failed;
+ case ELF::SHT_REL: {
+ type = getRel(Rel)->getType(EF.isMips64EL());
+ symbol_index = getRel(Rel)->getSymbol(EF.isMips64EL());
+ // TODO: Read implicit addend from section data.
+ break;
+ }
+ case ELF::SHT_RELA: {
+ type = getRela(Rel)->getType(EF.isMips64EL());
+ symbol_index = getRela(Rel)->getSymbol(EF.isMips64EL());
+ addend = getRela(Rel)->r_addend;
+ break;
+ }
+ }
+ const Elf_Sym *symb =
+ EF.template getEntry<Elf_Sym>(sec->sh_link, symbol_index);
+ ErrorOr<StringRef> SymName =
+ EF.getSymbolName(EF.getSection(sec->sh_link), symb);
+ if (!SymName)
+ return SymName.getError();
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_X86_64:
+ switch (type) {
+ case ELF::R_X86_64_PC8:
+ case ELF::R_X86_64_PC16:
+ case ELF::R_X86_64_PC32: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << *SymName << (addend < 0 ? "" : "+") << addend << "-P";
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ case ELF::R_X86_64_8:
+ case ELF::R_X86_64_16:
+ case ELF::R_X86_64_32:
+ case ELF::R_X86_64_32S:
+ case ELF::R_X86_64_64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << *SymName << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ } break;
+ default:
+ res = "Unknown";
+ }
+ break;
+ case ELF::EM_AARCH64: {
+ std::string fmtbuf;
+ raw_string_ostream fmt(fmtbuf);
+ fmt << *SymName;
+ if (addend != 0)
+ fmt << (addend < 0 ? "" : "+") << addend;
+ fmt.flush();
+ Result.append(fmtbuf.begin(), fmtbuf.end());
+ break;
+ }
+ case ELF::EM_386:
+ case ELF::EM_ARM:
+ case ELF::EM_HEXAGON:
+ case ELF::EM_MIPS:
+ res = *SymName;
+ break;
+ default:
+ res = "Unknown";
+ }
+ if (Result.empty())
+ Result.append(res.begin(), res.end());
+ return object_error::success;
+}
+
+template <class ELFT>
+const typename ELFFile<ELFT>::Elf_Sym *
+ELFObjectFile<ELFT>::getSymbol(DataRefImpl Symb) const {
+ return &*toELFSymIter(Symb);
+}
+
+template <class ELFT>
+const typename ELFObjectFile<ELFT>::Elf_Rel *
+ELFObjectFile<ELFT>::getRel(DataRefImpl Rel) const {
+ return EF.template getEntry<Elf_Rel>(Rel.d.a, Rel.d.b);
+}
+
+template <class ELFT>
+const typename ELFObjectFile<ELFT>::Elf_Rela *
+ELFObjectFile<ELFT>::getRela(DataRefImpl Rela) const {
+ return EF.template getEntry<Elf_Rela>(Rela.d.a, Rela.d.b);
+}
+
+template <class ELFT>
+ELFObjectFile<ELFT>::ELFObjectFile(MemoryBufferRef Object, std::error_code &EC)
+ : ELFObjectFileBase(
+ getELFType(static_cast<endianness>(ELFT::TargetEndianness) ==
+ support::little,
+ ELFT::Is64Bits),
+ Object),
+ EF(Data.getBuffer(), EC) {}
+
+template <class ELFT>
+basic_symbol_iterator ELFObjectFile<ELFT>::symbol_begin_impl() const {
+ return basic_symbol_iterator(SymbolRef(toDRI(EF.begin_symbols()), this));
+}
+
+template <class ELFT>
+basic_symbol_iterator ELFObjectFile<ELFT>::symbol_end_impl() const {
+ return basic_symbol_iterator(SymbolRef(toDRI(EF.end_symbols()), this));
+}
+
+template <class ELFT>
+symbol_iterator ELFObjectFile<ELFT>::dynamic_symbol_begin() const {
+ return symbol_iterator(SymbolRef(toDRI(EF.begin_dynamic_symbols()), this));
+}
+
+template <class ELFT>
+symbol_iterator ELFObjectFile<ELFT>::dynamic_symbol_end() const {
+ return symbol_iterator(SymbolRef(toDRI(EF.end_dynamic_symbols()), this));
+}
+
+template <class ELFT>
+section_iterator ELFObjectFile<ELFT>::section_begin() const {
+ return section_iterator(SectionRef(toDRI(EF.begin_sections()), this));
+}
+
+template <class ELFT>
+section_iterator ELFObjectFile<ELFT>::section_end() const {
+ return section_iterator(SectionRef(toDRI(EF.end_sections()), this));
+}
+
+template <class ELFT>
+StringRef ELFObjectFile<ELFT>::getLoadName() const {
+ Elf_Dyn_Iter DI = EF.begin_dynamic_table();
+ Elf_Dyn_Iter DE = EF.end_dynamic_table();
+
+ while (DI != DE && DI->getTag() != ELF::DT_SONAME)
+ ++DI;
+
+ if (DI != DE)
+ return EF.getDynamicString(DI->getVal());
+ return "";
+}
+
+template <class ELFT>
+uint8_t ELFObjectFile<ELFT>::getBytesInAddress() const {
+ return ELFT::Is64Bits ? 8 : 4;
+}
+
+template <class ELFT>
+StringRef ELFObjectFile<ELFT>::getFileFormatName() const {
+ bool IsLittleEndian = ELFT::TargetEndianness == support::little;
+ switch (EF.getHeader()->e_ident[ELF::EI_CLASS]) {
+ case ELF::ELFCLASS32:
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_386:
+ return "ELF32-i386";
+ case ELF::EM_X86_64:
+ return "ELF32-x86-64";
+ case ELF::EM_ARM:
+ return (IsLittleEndian ? "ELF32-arm-little" : "ELF32-arm-big");
+ case ELF::EM_HEXAGON:
+ return "ELF32-hexagon";
+ case ELF::EM_MIPS:
+ return "ELF32-mips";
+ case ELF::EM_PPC:
+ return "ELF32-ppc";
+ case ELF::EM_SPARC:
+ case ELF::EM_SPARC32PLUS:
+ return "ELF32-sparc";
+ default:
+ return "ELF32-unknown";
+ }
+ case ELF::ELFCLASS64:
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_386:
+ return "ELF64-i386";
+ case ELF::EM_X86_64:
+ return "ELF64-x86-64";
+ case ELF::EM_AARCH64:
+ return (IsLittleEndian ? "ELF64-aarch64-little" : "ELF64-aarch64-big");
+ case ELF::EM_PPC64:
+ return "ELF64-ppc64";
+ case ELF::EM_S390:
+ return "ELF64-s390";
+ case ELF::EM_SPARCV9:
+ return "ELF64-sparc";
+ case ELF::EM_MIPS:
+ return "ELF64-mips";
+ default:
+ return "ELF64-unknown";
+ }
+ default:
+ // FIXME: Proper error handling.
+ report_fatal_error("Invalid ELFCLASS!");
+ }
+}
+
+template <class ELFT>
+unsigned ELFObjectFile<ELFT>::getArch() const {
+ bool IsLittleEndian = ELFT::TargetEndianness == support::little;
+ switch (EF.getHeader()->e_machine) {
+ case ELF::EM_386:
+ return Triple::x86;
+ case ELF::EM_X86_64:
+ return Triple::x86_64;
+ case ELF::EM_AARCH64:
+ return Triple::aarch64;
+ case ELF::EM_ARM:
+ return Triple::arm;
+ case ELF::EM_HEXAGON:
+ return Triple::hexagon;
+ case ELF::EM_MIPS:
+ switch (EF.getHeader()->e_ident[ELF::EI_CLASS]) {
+ case ELF::ELFCLASS32:
+ return IsLittleEndian ? Triple::mipsel : Triple::mips;
+ case ELF::ELFCLASS64:
+ return IsLittleEndian ? Triple::mips64el : Triple::mips64;
+ default:
+ report_fatal_error("Invalid ELFCLASS!");
+ }
+ case ELF::EM_PPC:
+ return Triple::ppc;
+ case ELF::EM_PPC64:
+ return IsLittleEndian ? Triple::ppc64le : Triple::ppc64;
+ case ELF::EM_S390:
+ return Triple::systemz;
+
+ case ELF::EM_SPARC:
+ case ELF::EM_SPARC32PLUS:
+ return Triple::sparc;
+ case ELF::EM_SPARCV9:
+ return Triple::sparcv9;
+
+ default:
+ return Triple::UnknownArch;
+ }
+}
+
+template <class ELFT>
+std::pair<symbol_iterator, symbol_iterator>
+ELFObjectFile<ELFT>::getELFDynamicSymbolIterators() const {
+ return std::make_pair(dynamic_symbol_begin(), dynamic_symbol_end());
+}
+
+template <class ELFT> bool ELFObjectFile<ELFT>::isRelocatableObject() const {
+ return EF.getHeader()->e_type == ELF::ET_REL;
+}
+
+inline std::error_code getELFRelocationAddend(const RelocationRef R,
+ int64_t &Addend) {
+ const ObjectFile *Obj = R.getObjectFile();
+ DataRefImpl DRI = R.getRawDataRefImpl();
+ return cast<ELFObjectFileBase>(Obj)->getRelocationAddend(DRI, Addend);
+}
+
+inline std::pair<symbol_iterator, symbol_iterator>
+getELFDynamicSymbolIterators(const SymbolicFile *Obj) {
+ return cast<ELFObjectFileBase>(Obj)->getELFDynamicSymbolIterators();
+}
+
+inline std::error_code GetELFSymbolVersion(const ObjectFile *Obj,
+ const SymbolRef &Sym,
+ StringRef &Version,
+ bool &IsDefault) {
+ return cast<ELFObjectFileBase>(Obj)
+ ->getSymbolVersion(Sym, Version, IsDefault);
+}
+}
+}
+
+#endif
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