#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDELF_H
#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDELF_H
#include "RuntimeDyldImpl.h"
#include "llvm/ADT/DenseMap.h"
using namespace llvm;
namespace llvm {
class RuntimeDyldELF : public RuntimeDyldImpl {
void resolveRelocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend,
uint64_t SymOffset = 0, SID SectionID = 0);
void resolveX86_64Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend,
uint64_t SymOffset);
void resolveX86Relocation(const SectionEntry &Section, uint64_t Offset,
uint32_t Value, uint32_t Type, int32_t Addend);
void resolveAArch64Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend);
void resolveARMRelocation(const SectionEntry &Section, uint64_t Offset,
uint32_t Value, uint32_t Type, int32_t Addend);
void resolveMIPSRelocation(const SectionEntry &Section, uint64_t Offset,
uint32_t Value, uint32_t Type, int32_t Addend);
void resolvePPC32Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend);
void resolvePPC64Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend);
void resolveSystemZRelocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend);
void resolveMIPS64Relocation(const SectionEntry &Section, uint64_t Offset,
uint64_t Value, uint32_t Type, int64_t Addend,
uint64_t SymOffset, SID SectionID);
int64_t evaluateMIPS64Relocation(const SectionEntry &Section,
uint64_t Offset, uint64_t Value,
uint32_t Type, int64_t Addend,
uint64_t SymOffset, SID SectionID);
void applyMIPS64Relocation(uint8_t *TargetPtr, int64_t CalculatedValue,
uint32_t Type);
unsigned getMaxStubSize() override {
if (Arch == Triple::aarch64 || Arch == Triple::aarch64_be)
return 20; if (Arch == Triple::arm || Arch == Triple::thumb)
return 8; else if (IsMipsO32ABI)
return 16;
else if (Arch == Triple::ppc64 || Arch == Triple::ppc64le)
return 44;
else if (Arch == Triple::x86_64)
return 6; else if (Arch == Triple::systemz)
return 16;
else
return 0;
}
unsigned getStubAlignment() override {
if (Arch == Triple::systemz)
return 8;
else
return 1;
}
void setMipsABI(const ObjectFile &Obj) override;
void findPPC64TOCSection(const ELFObjectFileBase &Obj,
ObjSectionToIDMap &LocalSections,
RelocationValueRef &Rel);
void findOPDEntrySection(const ELFObjectFileBase &Obj,
ObjSectionToIDMap &LocalSections,
RelocationValueRef &Rel);
size_t getGOTEntrySize();
SectionEntry &getSection(unsigned SectionID) { return Sections[SectionID]; }
uint64_t allocateGOTEntries(unsigned SectionID, unsigned no);
void resolveGOTOffsetRelocation(unsigned SectionID, uint64_t Offset,
uint64_t GOTOffset);
RelocationEntry computeGOTOffsetRE(unsigned SectionID,
uint64_t GOTOffset,
uint64_t SymbolOffset,
unsigned Type);
void *computePlaceholderAddress(unsigned SectionID, uint64_t Offset) const;
void processSimpleRelocation(unsigned SectionID, uint64_t Offset, unsigned RelType, RelocationValueRef Value);
uint32_t getMatchingLoRelocation(uint32_t RelType,
bool IsLocal = false) const;
unsigned GOTSectionID;
unsigned CurrentGOTIndex;
DenseMap<SID, SID> SectionToGOTMap;
StringMap<uint64_t> GOTSymbolOffsets;
SmallVector<std::pair<RelocationValueRef, RelocationEntry>, 8> PendingRelocs;
SmallVector<SID, 2> UnregisteredEHFrameSections;
SmallVector<SID, 2> RegisteredEHFrameSections;
bool relocationNeedsStub(const RelocationRef &R) const override;
public:
RuntimeDyldELF(RuntimeDyld::MemoryManager &MemMgr,
RuntimeDyld::SymbolResolver &Resolver);
~RuntimeDyldELF() override;
std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
loadObject(const object::ObjectFile &O) override;
void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override;
relocation_iterator
processRelocationRef(unsigned SectionID, relocation_iterator RelI,
const ObjectFile &Obj,
ObjSectionToIDMap &ObjSectionToID,
StubMap &Stubs) override;
bool isCompatibleFile(const object::ObjectFile &Obj) const override;
void registerEHFrames() override;
void deregisterEHFrames() override;
void finalizeLoad(const ObjectFile &Obj,
ObjSectionToIDMap &SectionMap) override;
};
}
#endif