//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_RUNTIME_DYLD_MACHO_H
-#define LLVM_RUNTIME_DYLD_MACHO_H
+#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDMACHO_H
+#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDMACHO_H
-#include "ObjectImageCommon.h"
#include "RuntimeDyldImpl.h"
#include "llvm/Object/MachO.h"
#include "llvm/Support/Format.h"
// EH frame sections with the memory manager.
SmallVector<EHFrameRelatedSections, 2> UnregisteredEHFrameSections;
- RuntimeDyldMachO(RTDyldMemoryManager *mm) : RuntimeDyldImpl(mm) {}
+ RuntimeDyldMachO(RuntimeDyld::MemoryManager &MemMgr,
+ RuntimeDyld::SymbolResolver &Resolver)
+ : RuntimeDyldImpl(MemMgr, Resolver) {}
/// This convenience method uses memcpy to extract a contiguous addend (the
/// addend size and offset are taken from the corresponding fields of the RE).
/// filled in, since immediate encodings are highly target/opcode specific.
/// For targets/opcodes with simple, contiguous immediates (e.g. X86) the
/// memcpyAddend method can be used to read the immediate.
- RelocationEntry getRelocationEntry(unsigned SectionID, ObjectImage &ObjImg,
+ RelocationEntry getRelocationEntry(unsigned SectionID,
+ const ObjectFile &BaseTObj,
const relocation_iterator &RI) const {
const MachOObjectFile &Obj =
- static_cast<const MachOObjectFile &>(*ObjImg.getObjectFile());
+ static_cast<const MachOObjectFile &>(BaseTObj);
MachO::any_relocation_info RelInfo =
Obj.getRelocation(RI->getRawDataRefImpl());
bool IsPCRel = Obj.getAnyRelocationPCRel(RelInfo);
unsigned Size = Obj.getAnyRelocationLength(RelInfo);
- uint64_t Offset;
- RI->getOffset(Offset);
+ uint64_t Offset = RI->getOffset();
MachO::RelocationInfoType RelType =
static_cast<MachO::RelocationInfoType>(Obj.getAnyRelocationType(RelInfo));
return RelocationEntry(SectionID, Offset, RelType, 0, IsPCRel, Size);
}
+ /// Process a scattered vanilla relocation.
+ relocation_iterator processScatteredVANILLA(
+ unsigned SectionID, relocation_iterator RelI,
+ const ObjectFile &BaseObjT,
+ RuntimeDyldMachO::ObjSectionToIDMap &ObjSectionToID);
+
/// Construct a RelocationValueRef representing the relocation target.
/// For Symbols in known sections, this will return a RelocationValueRef
/// representing a (SectionID, Offset) pair.
/// In both cases the Addend field is *NOT* fixed up to be PC-relative. That
/// should be done by the caller where appropriate by calling makePCRel on
/// the RelocationValueRef.
- RelocationValueRef getRelocationValueRef(ObjectImage &ObjImg,
+ RelocationValueRef getRelocationValueRef(const ObjectFile &BaseTObj,
const relocation_iterator &RI,
const RelocationEntry &RE,
- ObjSectionToIDMap &ObjSectionToID,
- const SymbolTableMap &Symbols);
+ ObjSectionToIDMap &ObjSectionToID);
/// Make the RelocationValueRef addend PC-relative.
- void makeValueAddendPCRel(RelocationValueRef &Value, ObjectImage &ObjImg,
+ void makeValueAddendPCRel(RelocationValueRef &Value,
const relocation_iterator &RI,
unsigned OffsetToNextPC);
/// Dump information about the relocation entry (RE) and resolved value.
void dumpRelocationToResolve(const RelocationEntry &RE, uint64_t Value) const;
-public:
- /// Create an ObjectImage from the given ObjectBuffer.
- static ObjectImage *createObjectImage(ObjectBuffer *InputBuffer) {
- return new ObjectImageCommon(InputBuffer);
- }
+ // Return a section iterator for the section containing the given address.
+ static section_iterator getSectionByAddress(const MachOObjectFile &Obj,
+ uint64_t Addr);
- /// Create an ObjectImage from the given ObjectFile.
- static ObjectImage *
- createObjectImageFromFile(std::unique_ptr<object::ObjectFile> InputObject) {
- return new ObjectImageCommon(std::move(InputObject));
- }
+
+ // Populate __pointers section.
+ void populateIndirectSymbolPointersSection(const MachOObjectFile &Obj,
+ const SectionRef &PTSection,
+ unsigned PTSectionID);
+
+public:
/// Create a RuntimeDyldMachO instance for the given target architecture.
- static std::unique_ptr<RuntimeDyldMachO> create(Triple::ArchType Arch,
- RTDyldMemoryManager *mm);
+ static std::unique_ptr<RuntimeDyldMachO>
+ create(Triple::ArchType Arch,
+ RuntimeDyld::MemoryManager &MemMgr,
+ RuntimeDyld::SymbolResolver &Resolver);
- /// Write the least significant 'Size' bytes in 'Value' out at the address
- /// pointed to by Addr. Check for overflow.
- bool writeBytesUnaligned(uint8_t *Addr, uint64_t Value, unsigned Size);
+ std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
+ loadObject(const object::ObjectFile &O) override;
SectionEntry &getSection(unsigned SectionID) { return Sections[SectionID]; }
- bool isCompatibleFormat(const ObjectBuffer *Buffer) const override;
- bool isCompatibleFile(const object::ObjectFile *Obj) const override;
- void registerEHFrames() override;
+ bool isCompatibleFile(const object::ObjectFile &Obj) const override;
};
/// RuntimeDyldMachOTarget - Templated base class for generic MachO linker
Impl &impl() { return static_cast<Impl &>(*this); }
const Impl &impl() const { return static_cast<const Impl &>(*this); }
+ unsigned char *processFDE(uint8_t *P, int64_t DeltaForText,
+ int64_t DeltaForEH);
+
public:
- RuntimeDyldMachOCRTPBase(RTDyldMemoryManager *mm) : RuntimeDyldMachO(mm) {}
-
- void finalizeLoad(ObjectImage &ObjImg, ObjSectionToIDMap &SectionMap) {
- unsigned EHFrameSID = RTDYLD_INVALID_SECTION_ID;
- unsigned TextSID = RTDYLD_INVALID_SECTION_ID;
- unsigned ExceptTabSID = RTDYLD_INVALID_SECTION_ID;
- ObjSectionToIDMap::iterator i, e;
-
- for (i = SectionMap.begin(), e = SectionMap.end(); i != e; ++i) {
- const SectionRef &Section = i->first;
- StringRef Name;
- Section.getName(Name);
- if (Name == "__eh_frame")
- EHFrameSID = i->second;
- else if (Name == "__text")
- TextSID = i->second;
- else if (Name == "__gcc_except_tab")
- ExceptTabSID = i->second;
- else
- impl().finalizeSection(ObjImg, i->second, Section);
- }
- UnregisteredEHFrameSections.push_back(
- EHFrameRelatedSections(EHFrameSID, TextSID, ExceptTabSID));
- }
+ RuntimeDyldMachOCRTPBase(RuntimeDyld::MemoryManager &MemMgr,
+ RuntimeDyld::SymbolResolver &Resolver)
+ : RuntimeDyldMachO(MemMgr, Resolver) {}
+
+ void finalizeLoad(const ObjectFile &Obj,
+ ObjSectionToIDMap &SectionMap) override;
+ void registerEHFrames() override;
};
} // end namespace llvm