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;
protected:
ELFFile<ELFT> EF;
- void moveSymbolNext(DataRefImpl &Symb) const LLVM_OVERRIDE;
- error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolFileOffset(DataRefImpl Symb, uint64_t &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const LLVM_OVERRIDE;
- uint32_t getSymbolFlags(DataRefImpl Symb) const LLVM_OVERRIDE;
- error_code getSymbolType(DataRefImpl Symb, SymbolRef::Type &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolSection(DataRefImpl Symb, section_iterator &Res) const
- LLVM_OVERRIDE;
- error_code getSymbolValue(DataRefImpl Symb, uint64_t &Val) const;
-
- error_code getLibraryNext(DataRefImpl Data, LibraryRef &Result) const
- LLVM_OVERRIDE;
- error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const
- LLVM_OVERRIDE;
-
- void moveSectionNext(DataRefImpl &Sec) const LLVM_OVERRIDE;
- error_code getSectionName(DataRefImpl Sec, StringRef &Res) const
- LLVM_OVERRIDE;
- error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const
- LLVM_OVERRIDE;
- error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const LLVM_OVERRIDE;
- error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const;
- error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const
- LLVM_OVERRIDE;
- error_code isSectionText(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
- error_code isSectionData(DataRefImpl Sec, bool &Res) const;
- error_code isSectionBSS(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
- error_code isSectionRequiredForExecution(DataRefImpl Sec, bool &Res) const
- LLVM_OVERRIDE;
- error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
- error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const LLVM_OVERRIDE;
- error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const;
+ void moveSymbolNext(DataRefImpl &Symb) const override;
+ error_code getSymbolName(DataRefImpl Symb, StringRef &Res) const override;
+ error_code getSymbolAddress(DataRefImpl Symb, uint64_t &Res) const override;
+ error_code getSymbolAlignment(DataRefImpl Symb, uint32_t &Res) const override;
+ error_code getSymbolSize(DataRefImpl Symb, uint64_t &Res) const override;
+ uint32_t getSymbolFlags(DataRefImpl Symb) const override;
+ error_code getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Res) const override;
+ error_code getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const override;
+
+ error_code getLibraryNext(DataRefImpl Data,
+ LibraryRef &Result) const override;
+ error_code getLibraryPath(DataRefImpl Data, StringRef &Res) const override;
+
+ void moveSectionNext(DataRefImpl &Sec) const override;
+ error_code getSectionName(DataRefImpl Sec, StringRef &Res) const override;
+ error_code getSectionAddress(DataRefImpl Sec, uint64_t &Res) const override;
+ error_code getSectionSize(DataRefImpl Sec, uint64_t &Res) const override;
+ error_code getSectionContents(DataRefImpl Sec, StringRef &Res) const override;
+ error_code getSectionAlignment(DataRefImpl Sec, uint64_t &Res) const override;
+ error_code isSectionText(DataRefImpl Sec, bool &Res) const override;
+ error_code isSectionData(DataRefImpl Sec, bool &Res) const override;
+ error_code isSectionBSS(DataRefImpl Sec, bool &Res) const override;
+ error_code isSectionRequiredForExecution(DataRefImpl Sec,
+ bool &Res) const override;
+ error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const override;
+ error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const override;
+ error_code isSectionReadOnlyData(DataRefImpl Sec, bool &Res) const override;
error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl Symb,
- bool &Result) const LLVM_OVERRIDE;
- relocation_iterator section_rel_begin(DataRefImpl Sec) const;
- relocation_iterator section_rel_end(DataRefImpl Sec) const LLVM_OVERRIDE;
- section_iterator getRelocatedSection(DataRefImpl Sec) const LLVM_OVERRIDE;
-
- void moveRelocationNext(DataRefImpl &Rel) const LLVM_OVERRIDE;
- error_code getRelocationAddress(DataRefImpl Rel, uint64_t &Res) const
- LLVM_OVERRIDE;
- error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) const
- LLVM_OVERRIDE;
- symbol_iterator getRelocationSymbol(DataRefImpl Rel) const LLVM_OVERRIDE;
- error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const;
+ bool &Result) 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;
+ error_code getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) const override;
+ symbol_iterator getRelocationSymbol(DataRefImpl Rel) const override;
+ error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const override;
error_code getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const
- LLVM_OVERRIDE;
+ SmallVectorImpl<char> &Result) const override;
error_code getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const
- LLVM_OVERRIDE;
+ SmallVectorImpl<char> &Result) const override;
uint64_t getROffset(DataRefImpl Rel) const;
StringRef getRelocationTypeName(uint32_t Type) const;
const Elf_Sym *getSymbol(DataRefImpl Symb) const;
- basic_symbol_iterator symbol_begin_impl() const LLVM_OVERRIDE;
- basic_symbol_iterator symbol_end_impl() const LLVM_OVERRIDE;
+ 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 LLVM_OVERRIDE;
- section_iterator section_end() const LLVM_OVERRIDE;
+ section_iterator section_begin() const override;
+ section_iterator section_end() const override;
- library_iterator needed_library_begin() const LLVM_OVERRIDE;
- library_iterator needed_library_end() const LLVM_OVERRIDE;
+ library_iterator needed_library_begin() const override;
+ library_iterator needed_library_end() const override;
error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const;
error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
bool &IsDefault) const;
- uint8_t getBytesInAddress() const LLVM_OVERRIDE;
- StringRef getFileFormatName() const LLVM_OVERRIDE;
- unsigned getArch() const LLVM_OVERRIDE;
- StringRef getLoadName() const LLVM_OVERRIDE;
+ uint8_t getBytesInAddress() const override;
+ StringRef getFileFormatName() const override;
+ unsigned getArch() const override;
+ StringRef getLoadName() const override;
const ELFFile<ELFT> *getELFFile() const { return &EF; }
return object_error::success;
}
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolFileOffset(DataRefImpl Symb,
- uint64_t &Result) const {
- const Elf_Sym *ESym = getSymbol(Symb);
- const Elf_Shdr *ESec;
- switch (EF.getSymbolTableIndex(ESym)) {
- case ELF::SHN_COMMON:
- // Unintialized symbols have no offset in the object file
- case ELF::SHN_UNDEF:
- Result = UnknownAddressOrSize;
- return object_error::success;
- case ELF::SHN_ABS:
- Result = ESym->st_value;
- return object_error::success;
- default:
- ESec = EF.getSection(ESym);
- }
-
- switch (ESym->getType()) {
- case ELF::STT_SECTION:
- Result = ESec ? ESec->sh_offset : UnknownAddressOrSize;
- return object_error::success;
- case ELF::STT_FUNC:
- case ELF::STT_OBJECT:
- case ELF::STT_NOTYPE:
- Result = ESym->st_value + (ESec ? ESec->sh_offset : 0);
- return object_error::success;
- default:
- Result = UnknownAddressOrSize;
- return object_error::success;
- }
-}
-
template <class ELFT>
error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
uint64_t &Result) const {
const Elf_Sym *ESym = getSymbol(Symb);
- const Elf_Shdr *ESec;
switch (EF.getSymbolTableIndex(ESym)) {
case ELF::SHN_COMMON:
case ELF::SHN_UNDEF:
Result = ESym->st_value;
return object_error::success;
default:
- ESec = EF.getSection(ESym);
+ break;
}
- switch (ESym->getType()) {
- case ELF::STT_SECTION:
- Result = ESec ? ESec->sh_addr : UnknownAddressOrSize;
- return object_error::success;
- case ELF::STT_FUNC:
- case ELF::STT_OBJECT:
- case ELF::STT_NOTYPE:
- case ELF::STT_TLS:
- bool IsRelocatable;
- switch (EF.getHeader()->e_type) {
- case ELF::ET_EXEC:
- case ELF::ET_DYN:
- IsRelocatable = false;
- break;
- default:
- IsRelocatable = true;
- }
- Result = ESym->st_value;
+ const Elf_Ehdr *Header = EF.getHeader();
+ Result = ESym->st_value;
- // Clear the ARM/Thumb indicator flag.
- if (EF.getHeader()->e_machine == ELF::EM_ARM)
- Result &= ~1;
+ // Clear the ARM/Thumb indicator flag.
+ if (Header->e_machine == ELF::EM_ARM && ESym->getType() == ELF::STT_FUNC)
+ Result &= ~1;
- if (IsRelocatable && ESec != 0)
- Result += ESec->sh_addr;
- return object_error::success;
- default:
- Result = UnknownAddressOrSize;
- return object_error::success;
- }
+ if (Header->e_type == ELF::ET_REL)
+ Result += EF.getSection(ESym)->sh_addr;
+
+ return object_error::success;
}
template <class ELFT>
return object_error::success;
}
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolValue(DataRefImpl Symb,
- uint64_t &Val) const {
- const Elf_Sym *ESym = getSymbol(Symb);
- Val = ESym->st_value;
- return object_error::success;
-}
-
template <class ELFT>
void ELFObjectFile<ELFT>::moveSectionNext(DataRefImpl &Sec) const {
Sec = toDRI(++toELFShdrIter(Sec));
template <class ELFT>
error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
uint64_t &Result) const {
+ assert((EF.getHeader()->e_type == ELF::ET_EXEC ||
+ EF.getHeader()->e_type == ELF::ET_DYN) &&
+ "Only executable and shared objects files have relocation addresses");
Result = getROffset(Rel);
return object_error::success;
}
template <class ELFT>
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;
}
/// FIXME: Maybe we should have a base ElfObjectFile that is not a template
/// and make these member functions?
-static inline error_code getELFRelocationAddend(const RelocationRef R,
- int64_t &Addend) {
+inline error_code getELFRelocationAddend(const RelocationRef R,
+ int64_t &Addend) {
const ObjectFile *Obj = R.getObjectFile();
DataRefImpl DRI = R.getRawDataRefImpl();
// Little-endian 32-bit
llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
}
+inline std::pair<symbol_iterator, symbol_iterator>
+getELFDynamicSymbolIterators(SymbolicFile *Obj) {
+ if (const ELF32LEObjectFile *ELF = dyn_cast<ELF32LEObjectFile>(Obj))
+ return std::make_pair(ELF->dynamic_symbol_begin(),
+ ELF->dynamic_symbol_end());
+ if (const ELF64LEObjectFile *ELF = dyn_cast<ELF64LEObjectFile>(Obj))
+ return std::make_pair(ELF->dynamic_symbol_begin(),
+ ELF->dynamic_symbol_end());
+ if (const ELF32BEObjectFile *ELF = dyn_cast<ELF32BEObjectFile>(Obj))
+ return std::make_pair(ELF->dynamic_symbol_begin(),
+ ELF->dynamic_symbol_end());
+ if (const ELF64BEObjectFile *ELF = cast<ELF64BEObjectFile>(Obj))
+ return std::make_pair(ELF->dynamic_symbol_begin(),
+ ELF->dynamic_symbol_end());
+
+ llvm_unreachable(
+ "Object passed to getELFDynamicSymbolIterators() is not ELF");
+}
+
/// This is a generic interface for retrieving GNU symbol version
/// information from an ELFObjectFile.
-static inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
- const SymbolRef &Sym,
- StringRef &Version,
- bool &IsDefault) {
+inline error_code GetELFSymbolVersion(const ObjectFile *Obj,
+ const SymbolRef &Sym, StringRef &Version,
+ bool &IsDefault) {
// Little-endian 32-bit
if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
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