//
//===----------------------------------------------------------------------===//
-#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;
+};
+
+template <class ELFT> class ELFObjectFile : public ELFObjectFileBase {
public:
LLVM_ELF_IMPORT_TYPES_ELFT(ELFT)
std::error_code getSymbolSection(DataRefImpl Symb,
section_iterator &Res) const override;
- std::error_code getLibraryNext(DataRefImpl Data,
- LibraryRef &Result) const override;
- std::error_code getLibraryPath(DataRefImpl Data,
- StringRef &Res) const override;
-
void moveSectionNext(DataRefImpl &Sec) const override;
std::error_code getSectionName(DataRefImpl Sec,
StringRef &Res) const override;
bool isDyldELFObject;
public:
- ELFObjectFile(std::unique_ptr<MemoryBuffer> Object, std::error_code &EC);
+ 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;
-
- std::error_code getRelocationAddend(DataRefImpl Rel, int64_t &Res) const;
+ std::error_code getRelocationAddend(DataRefImpl Rel,
+ int64_t &Res) const override;
std::error_code getSymbolVersion(SymbolRef Symb, StringRef &Version,
- bool &IsDefault) const;
+ bool &IsDefault) const override;
uint8_t getBytesInAddress() const override;
StringRef getFileFormatName() const override;
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
}
template <class ELFT>
-ELFObjectFile<ELFT>::ELFObjectFile(std::unique_ptr<MemoryBuffer> Object,
- std::error_code &EC)
- : ObjectFile(getELFType(static_cast<endianness>(ELFT::TargetEndianness) ==
- support::little,
- ELFT::Is64Bits),
- std::move(Object)),
- EF(Data->getBuffer(), 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>
-std::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>
-std::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;
}
}
-/// FIXME: Maybe we should have a base ElfObjectFile that is not a template
-/// and make these member functions?
+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();
- // 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);
-
- // Big-endian 64-bit
- if (const ELF64BEObjectFile *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
- return ELFObj->getRelocationAddend(DRI, Addend);
-
- llvm_unreachable("Object passed to getELFRelocationAddend() is not ELF");
+ 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");
+ return cast<ELFObjectFileBase>(Obj)->getELFDynamicSymbolIterators();
}
-/// This is a generic interface for retrieving GNU symbol version
-/// information from an ELFObjectFile.
inline std::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");
+ return cast<ELFObjectFileBase>(Obj)
+ ->getSymbolVersion(Sym, Version, IsDefault);
}
}
}
projects / oota-llvm.git / blobdiff