//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_OBJECT_ELF_OBJECT_FILE_H
-#define LLVM_OBJECT_ELF_OBJECT_FILE_H
+#ifndef LLVM_OBJECT_ELFOBJECTFILE_H
+#define LLVM_OBJECT_ELFOBJECTFILE_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/PointerIntPair.h"
namespace llvm {
namespace object {
-template <class ELFT>
-class ELFObjectFile : public ObjectFile {
+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)
ELFFile<ELFT> EF;
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;
+ std::error_code getSymbolName(DataRefImpl Symb,
+ StringRef &Res) const override;
+ std::error_code getSymbolAddress(DataRefImpl Symb,
+ uint64_t &Res) const override;
+ uint32_t getSymbolAlignment(DataRefImpl Symb) const override;
+ uint64_t getSymbolSize(DataRefImpl Symb) 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;
+ std::error_code getSymbolOther(DataRefImpl Symb, uint8_t &Res) const override;
+ std::error_code getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Res) const override;
+ section_iterator getSymbolSection(const Elf_Sym *Symb) const;
+ std::error_code getSymbolSection(DataRefImpl Symb,
+ section_iterator &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 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;
- error_code getRelocationAddress(DataRefImpl Rel,
- uint64_t &Res) const override;
- error_code getRelocationOffset(DataRefImpl Rel, uint64_t &Res) 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;
- error_code getRelocationType(DataRefImpl Rel, uint64_t &Res) const override;
- error_code getRelocationTypeName(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const override;
- error_code getRelocationValueString(DataRefImpl Rel,
- SmallVectorImpl<char> &Result) const override;
+ std::error_code getRelocationType(DataRefImpl Rel,
+ uint64_t &Res) const override;
+ std::error_code
+ getRelocationTypeName(DataRefImpl Rel,
+ SmallVectorImpl<char> &Result) const override;
uint64_t getROffset(DataRefImpl Rel) const;
StringRef getRelocationTypeName(uint32_t Type) const;
return DRI;
}
+ bool isExportedToOtherDSO(const Elf_Sym *ESym) const {
+ unsigned char Binding = ESym->getBinding();
+ unsigned char Visibility = ESym->getVisibility();
+
+ // A symbol is exported if its binding is either GLOBAL or WEAK, and its
+ // visibility is either DEFAULT or PROTECTED. All other symbols are not
+ // exported.
+ if ((Binding == ELF::STB_GLOBAL || Binding == ELF::STB_WEAK) &&
+ (Visibility == ELF::STV_DEFAULT || Visibility == ELF::STV_PROTECTED))
+ return true;
+
+ return false;
+ }
+
// 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(MemoryBuffer *Object, error_code &EC, bool BufferOwned = true);
+ ELFObjectFile(MemoryBufferRef Object, std::error_code &EC);
const Elf_Sym *getSymbol(DataRefImpl Symb) const;
section_iterator section_begin() const override;
section_iterator section_end() const 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;
+ 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 override;
+ StringRef getLoadName() const;
+
+ std::error_code getPlatformFlags(unsigned &Result) const override {
+ Result = EF.getHeader()->e_flags;
+ return std::error_code();
+ }
const ELFFile<ELFT> *getELFFile() const { return &EF; }
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;
+typedef ELFObjectFile<ELFType<support::little, false>> ELF32LEObjectFile;
+typedef ELFObjectFile<ELFType<support::little, true>> ELF64LEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, false>> ELF32BEObjectFile;
+typedef ELFObjectFile<ELFType<support::big, true>> ELF64BEObjectFile;
template <class ELFT>
void ELFObjectFile<ELFT>::moveSymbolNext(DataRefImpl &Symb) const {
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolName(DataRefImpl Symb,
- StringRef &Result) const {
+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;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolVersion(SymbolRef SymRef,
- StringRef &Version,
- bool &IsDefault) const {
+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 =
if (!Ver)
return Ver.getError();
Version = *Ver;
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolAddress(DataRefImpl Symb,
- uint64_t &Result) const {
+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;
+ return std::error_code();
case ELF::SHN_ABS:
Result = ESym->st_value;
- return object_error::success;
+ return std::error_code();
default:
break;
}
const Elf_Ehdr *Header = EF.getHeader();
Result = ESym->st_value;
- // Clear the ARM/Thumb indicator flag.
- if (Header->e_machine == ELF::EM_ARM && ESym->getType() == ELF::STT_FUNC)
+ // 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;
+ if (Header->e_type == ELF::ET_REL) {
+ const typename ELFFile<ELFT>::Elf_Shdr * Section = EF.getSection(ESym);
+ if (Section != nullptr)
+ Result += Section->sh_addr;
+ }
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb,
- uint32_t &Res) const {
+uint32_t ELFObjectFile<ELFT>::getSymbolAlignment(DataRefImpl Symb) 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;
+ return Sym->st_value;
+ return 0;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb,
- uint64_t &Result) const {
- Result = toELFSymIter(Symb)->st_size;
- return object_error::success;
+uint64_t ELFObjectFile<ELFT>::getSymbolSize(DataRefImpl Symb) const {
+ return toELFSymIter(Symb)->st_size;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
- SymbolRef::Type &Result) const {
+std::error_code ELFObjectFile<ELFT>::getSymbolOther(DataRefImpl Symb,
+ uint8_t &Result) const {
+ Result = toELFSymIter(Symb)->st_other;
+ return std::error_code();
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getSymbolType(DataRefImpl Symb,
+ SymbolRef::Type &Result) const {
const Elf_Sym *ESym = getSymbol(Symb);
switch (ESym->getType()) {
Result = SymbolRef::ST_Other;
break;
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
EF.getSymbolTableIndex(ESym) == ELF::SHN_COMMON)
Result |= SymbolRef::SF_Common;
+ if (isExportedToOtherDSO(ESym))
+ Result |= SymbolRef::SF_Exported;
+
+ if (ESym->getVisibility() == ELF::STV_HIDDEN)
+ Result |= SymbolRef::SF_Hidden;
+
return Result;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
- section_iterator &Res) const {
- const Elf_Sym *ESym = getSymbol(Symb);
+section_iterator
+ELFObjectFile<ELFT>::getSymbolSection(const Elf_Sym *ESym) const {
const Elf_Shdr *ESec = EF.getSection(ESym);
if (!ESec)
- Res = section_end();
+ return section_end();
else {
DataRefImpl Sec;
Sec.p = reinterpret_cast<intptr_t>(ESec);
- Res = section_iterator(SectionRef(Sec, this));
+ return section_iterator(SectionRef(Sec, this));
}
- return object_error::success;
+}
+
+template <class ELFT>
+std::error_code
+ELFObjectFile<ELFT>::getSymbolSection(DataRefImpl Symb,
+ section_iterator &Res) const {
+ Res = getSymbolSection(getSymbol(Symb));
+ return std::error_code();
}
template <class ELFT>
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSectionName(DataRefImpl Sec,
- StringRef &Result) const {
+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;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec,
- uint64_t &Result) const {
- Result = toELFShdrIter(Sec)->sh_addr;
- return object_error::success;
+uint64_t ELFObjectFile<ELFT>::getSectionAddress(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_addr;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec,
- uint64_t &Result) const {
- Result = toELFShdrIter(Sec)->sh_size;
- return object_error::success;
+uint64_t ELFObjectFile<ELFT>::getSectionSize(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_size;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSectionContents(DataRefImpl Sec,
- StringRef &Result) const {
+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;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec,
- uint64_t &Result) const {
- Result = toELFShdrIter(Sec)->sh_addralign;
- return object_error::success;
+uint64_t ELFObjectFile<ELFT>::getSectionAlignment(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_addralign;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec,
- bool &Result) const {
- Result = toELFShdrIter(Sec)->sh_flags & ELF::SHF_EXECINSTR;
- return object_error::success;
+bool ELFObjectFile<ELFT>::isSectionText(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_flags & ELF::SHF_EXECINSTR;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec,
- bool &Result) const {
+bool ELFObjectFile<ELFT>::isSectionData(DataRefImpl Sec) const {
Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
- Result = EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
- EShdr->sh_type == ELF::SHT_PROGBITS;
- return object_error::success;
+ return EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
+ EShdr->sh_type == ELF::SHT_PROGBITS;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec,
- bool &Result) const {
+bool ELFObjectFile<ELFT>::isSectionBSS(DataRefImpl Sec) const {
Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
- Result = EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
- EShdr->sh_type == ELF::SHT_NOBITS;
- return object_error::success;
-}
-
-template <class ELFT>
-error_code
-ELFObjectFile<ELFT>::isSectionRequiredForExecution(DataRefImpl Sec,
- bool &Result) const {
- Result = toELFShdrIter(Sec)->sh_flags & ELF::SHF_ALLOC;
- return object_error::success;
-}
-
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec,
- bool &Result) const {
- Result = toELFShdrIter(Sec)->sh_type == ELF::SHT_NOBITS;
- return object_error::success;
-}
-
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionZeroInit(DataRefImpl Sec,
- bool &Result) const {
- Result = toELFShdrIter(Sec)->sh_type == ELF::SHT_NOBITS;
- return object_error::success;
+ return EShdr->sh_flags & (ELF::SHF_ALLOC | ELF::SHF_WRITE) &&
+ EShdr->sh_type == ELF::SHT_NOBITS;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::isSectionReadOnlyData(DataRefImpl Sec,
- bool &Result) const {
- Elf_Shdr_Iter EShdr = toELFShdrIter(Sec);
- Result = !(EShdr->sh_flags & (ELF::SHF_WRITE | ELF::SHF_EXECINSTR));
- return object_error::success;
+bool ELFObjectFile<ELFT>::isSectionVirtual(DataRefImpl Sec) const {
+ return toELFShdrIter(Sec)->sh_type == ELF::SHT_NOBITS;
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
- DataRefImpl Symb,
- bool &Result) const {
+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;
- Result = !Reserved && (&*toELFShdrIter(Sec) == EF.getSection(ESym->st_shndx));
- return object_error::success;
+ return !Reserved && (&*toELFShdrIter(Sec) == EF.getSection(ESym->st_shndx));
}
template <class ELFT>
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
- uint64_t &Result) const {
+std::error_code
+ELFObjectFile<ELFT>::getRelocationAddress(DataRefImpl Rel,
+ uint64_t &Result) const {
uint64_t ROffset = getROffset(Rel);
const Elf_Ehdr *Header = EF.getHeader();
Result = ROffset;
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getRelocationOffset(DataRefImpl Rel,
- uint64_t &Result) const {
+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;
+ return std::error_code();
}
template <class ELFT>
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
- uint64_t &Result) const {
+std::error_code ELFObjectFile<ELFT>::getRelocationType(DataRefImpl Rel,
+ uint64_t &Result) const {
const Elf_Shdr *sec = getRelSection(Rel);
switch (sec->sh_type) {
default:
break;
}
}
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getRelocationTypeName(
+std::error_code ELFObjectFile<ELFT>::getRelocationTypeName(
DataRefImpl Rel, SmallVectorImpl<char> &Result) const {
const Elf_Shdr *sec = getRelSection(Rel);
uint32_t type;
}
EF.getRelocationTypeName(type, Result);
- return object_error::success;
+ return std::error_code();
}
template <class ELFT>
-error_code ELFObjectFile<ELFT>::getRelocationAddend(DataRefImpl Rel,
- int64_t &Result) const {
+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;
+ return std::error_code();
}
case ELF::SHT_RELA: {
Result = getRela(Rel)->r_addend;
- return object_error::success;
+ return std::error_code();
}
}
}
-template <class ELFT>
-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_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 {
}
template <class ELFT>
-ELFObjectFile<ELFT>::ELFObjectFile(MemoryBuffer *Object, error_code &ec,
- bool BufferOwned)
- : ObjectFile(getELFType(static_cast<endianness>(ELFT::TargetEndianness) ==
- support::little,
- ELFT::Is64Bits),
- Object, BufferOwned),
- EF(Object, ec) {}
+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 "";
}
-template <class ELFT>
-library_iterator ELFObjectFile<ELFT>::needed_library_begin() 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;
-
- return library_iterator(LibraryRef(toDRI(DI), this));
-}
-
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::getLibraryNext(DataRefImpl Data,
- LibraryRef &Result) const {
- Elf_Dyn_Iter DI = toELFDynIter(Data);
- Elf_Dyn_Iter DE = EF.end_dynamic_table();
-
- // Skip to the next DT_NEEDED entry.
- do
- ++DI;
- while (DI != DE && DI->getTag() != ELF::DT_NEEDED);
-
- Result = LibraryRef(toDRI(DI), this);
- return object_error::success;
-}
-
-template <class ELFT>
-error_code ELFObjectFile<ELFT>::getLibraryPath(DataRefImpl Data,
- StringRef &Res) const {
- Res = EF.getDynamicString(toELFDynIter(Data)->getVal());
- return object_error::success;
-}
-
-template <class ELFT>
-library_iterator ELFObjectFile<ELFT>::needed_library_end() const {
- return library_iterator(LibraryRef(toDRI(EF.end_dynamic_table()), this));
-}
-
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_X86_64:
return "ELF32-x86-64";
case ELF::EM_ARM:
- return "ELF32-arm";
+ return (IsLittleEndian ? "ELF32-arm-little" : "ELF32-arm-big");
case ELF::EM_HEXAGON:
return "ELF32-hexagon";
case ELF::EM_MIPS:
case ELF::EM_X86_64:
return "ELF64-x86-64";
case ELF::EM_AARCH64:
- return "ELF64-aarch64";
+ return (IsLittleEndian ? "ELF64-aarch64-little" : "ELF64-aarch64-big");
case ELF::EM_PPC64:
return "ELF64-ppc64";
case ELF::EM_S390:
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_HEXAGON:
return Triple::hexagon;
case ELF::EM_MIPS:
- return (ELFT::TargetEndianness == support::little) ? Triple::mipsel
- : Triple::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 (ELFT::TargetEndianness == support::little) ? Triple::ppc64le
- : Triple::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;
+ return IsLittleEndian ? Triple::sparcel : Triple::sparc;
case ELF::EM_SPARCV9:
return Triple::sparcv9;
}
}
-/// FIXME: Maybe we should have a base ElfObjectFile that is not a template
-/// and make these member functions?
-inline error_code getELFRelocationAddend(const RelocationRef R,
- int64_t &Addend) {
- const ObjectFile *Obj = R.getObjectFile();
- DataRefImpl DRI = R.getRawDataRefImpl();
- // Little-endian 32-bit
- if (const ELF32LEObjectFile *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
- return ELFObj->getRelocationAddend(DRI, Addend);
-
- // Big-endian 32-bit
- if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
- return ELFObj->getRelocationAddend(DRI, Addend);
-
- // Little-endian 64-bit
- if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
- return ELFObj->getRelocationAddend(DRI, Addend);
+template <class ELFT>
+std::pair<symbol_iterator, symbol_iterator>
+ELFObjectFile<ELFT>::getELFDynamicSymbolIterators() const {
+ return std::make_pair(dynamic_symbol_begin(), dynamic_symbol_end());
+}
- // Big-endian 64-bit
- if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
- return ELFObj->getRelocationAddend(DRI, Addend);
+template <class ELFT> bool ELFObjectFile<ELFT>::isRelocatableObject() const {
+ return EF.getHeader()->e_type == ELF::ET_REL;
+}
- llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
+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(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");
+getELFDynamicSymbolIterators(const SymbolicFile *Obj) {
+ return cast<ELFObjectFileBase>(Obj)->getELFDynamicSymbolIterators();
}
-/// This is a generic interface for retrieving GNU symbol version
-/// information from an ELFObjectFile.
-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);
-
- // Big-endian 32-bit
- if (const ELF32BEObjectFile *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
- return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
-
- // Little-endian 64-bit
- if (const ELF64LEObjectFile *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
- return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
-
- // Big-endian 64-bit
- if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
- return ELFObj->getSymbolVersion(Sym, Version, IsDefault);
-
- llvm_unreachable("Object passed to GetELFSymbolVersion() is not ELF");
-}
-}
+inline std::error_code GetELFSymbolVersion(const ObjectFile *Obj,
+ const SymbolRef &Sym,
+ StringRef &Version,
+ bool &IsDefault) {
+ return cast<ELFObjectFileBase>(Obj)
+ ->getSymbolVersion(Sym, Version, IsDefault);
}
+} // namespace object
+} // namespace llvm
#endif
projects / oota-llvm.git / blobdiff