Remove LLVM 8.0.1 files.

1 files changed, 0 insertions, 575 deletions

diff --git a/gnu/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h b/gnu/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
deleted file mode 100644
index 4c650e09ac1..00000000000
--- a/gnu/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
+++ /dev/null
@@ -1,575 +0,0 @@
-//===-- RuntimeDyldImpl.h - Run-time dynamic linker for MC-JIT --*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Interface for the implementations of runtime dynamic linker facilities.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDIMPL_H
-#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_RUNTIMEDYLDIMPL_H
-
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/ADT/StringMap.h"
-#include "llvm/ADT/Triple.h"
-#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
-#include "llvm/ExecutionEngine/RuntimeDyld.h"
-#include "llvm/ExecutionEngine/RuntimeDyldChecker.h"
-#include "llvm/Object/ObjectFile.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/Host.h"
-#include "llvm/Support/Mutex.h"
-#include "llvm/Support/SwapByteOrder.h"
-#include <map>
-#include <system_error>
-#include <unordered_map>
-
-using namespace llvm;
-using namespace llvm::object;
-
-namespace llvm {
-
-class Twine;
-
-#define UNIMPLEMENTED_RELOC(RelType) \
-  case RelType: \
-    return make_error<RuntimeDyldError>("Unimplemented relocation: " #RelType)
-
-/// SectionEntry - represents a section emitted into memory by the dynamic
-/// linker.
-class SectionEntry {
-  /// Name - section name.
-  std::string Name;
-
-  /// Address - address in the linker's memory where the section resides.
-  uint8_t *Address;
-
-  /// Size - section size. Doesn't include the stubs.
-  size_t Size;
-
-  /// LoadAddress - the address of the section in the target process's memory.
-  /// Used for situations in which JIT-ed code is being executed in the address
-  /// space of a separate process.  If the code executes in the same address
-  /// space where it was JIT-ed, this just equals Address.
-  uint64_t LoadAddress;
-
-  /// StubOffset - used for architectures with stub functions for far
-  /// relocations (like ARM).
-  uintptr_t StubOffset;
-
-  /// The total amount of space allocated for this section.  This includes the
-  /// section size and the maximum amount of space that the stubs can occupy.
-  size_t AllocationSize;
-
-  /// ObjAddress - address of the section in the in-memory object file.  Used
-  /// for calculating relocations in some object formats (like MachO).
-  uintptr_t ObjAddress;
-
-public:
-  SectionEntry(StringRef name, uint8_t *address, size_t size,
-               size_t allocationSize, uintptr_t objAddress)
-      : Name(name), Address(address), Size(size),
-        LoadAddress(reinterpret_cast<uintptr_t>(address)), StubOffset(size),
-        AllocationSize(allocationSize), ObjAddress(objAddress) {
-    // AllocationSize is used only in asserts, prevent an "unused private field"
-    // warning:
-    (void)AllocationSize;
-  }
-
-  StringRef getName() const { return Name; }
-
-  uint8_t *getAddress() const { return Address; }
-
-  /// Return the address of this section with an offset.
-  uint8_t *getAddressWithOffset(unsigned OffsetBytes) const {
-    assert(OffsetBytes <= AllocationSize && "Offset out of bounds!");
-    return Address + OffsetBytes;
-  }
-
-  size_t getSize() const { return Size; }
-
-  uint64_t getLoadAddress() const { return LoadAddress; }
-  void setLoadAddress(uint64_t LA) { LoadAddress = LA; }
-
-  /// Return the load address of this section with an offset.
-  uint64_t getLoadAddressWithOffset(unsigned OffsetBytes) const {
-    assert(OffsetBytes <= AllocationSize && "Offset out of bounds!");
-    return LoadAddress + OffsetBytes;
-  }
-
-  uintptr_t getStubOffset() const { return StubOffset; }
-
-  void advanceStubOffset(unsigned StubSize) {
-    StubOffset += StubSize;
-    assert(StubOffset <= AllocationSize && "Not enough space allocated!");
-  }
-
-  uintptr_t getObjAddress() const { return ObjAddress; }
-};
-
-/// RelocationEntry - used to represent relocations internally in the dynamic
-/// linker.
-class RelocationEntry {
-public:
-  /// SectionID - the section this relocation points to.
-  unsigned SectionID;
-
-  /// Offset - offset into the section.
-  uint64_t Offset;
-
-  /// RelType - relocation type.
-  uint32_t RelType;
-
-  /// Addend - the relocation addend encoded in the instruction itself.  Also
-  /// used to make a relocation section relative instead of symbol relative.
-  int64_t Addend;
-
-  struct SectionPair {
-      uint32_t SectionA;
-      uint32_t SectionB;
-  };
-
-  /// SymOffset - Section offset of the relocation entry's symbol (used for GOT
-  /// lookup).
-  union {
-    uint64_t SymOffset;
-    SectionPair Sections;
-  };
-
-  /// True if this is a PCRel relocation (MachO specific).
-  bool IsPCRel;
-
-  /// The size of this relocation (MachO specific).
-  unsigned Size;
-
-  // ARM (MachO and COFF) specific.
-  bool IsTargetThumbFunc = false;
-
-  RelocationEntry(unsigned id, uint64_t offset, uint32_t type, int64_t addend)
-      : SectionID(id), Offset(offset), RelType(type), Addend(addend),
-        SymOffset(0), IsPCRel(false), Size(0), IsTargetThumbFunc(false) {}
-
-  RelocationEntry(unsigned id, uint64_t offset, uint32_t type, int64_t addend,
-                  uint64_t symoffset)
-      : SectionID(id), Offset(offset), RelType(type), Addend(addend),
-        SymOffset(symoffset), IsPCRel(false), Size(0),
-        IsTargetThumbFunc(false) {}
-
-  RelocationEntry(unsigned id, uint64_t offset, uint32_t type, int64_t addend,
-                  bool IsPCRel, unsigned Size)
-      : SectionID(id), Offset(offset), RelType(type), Addend(addend),
-        SymOffset(0), IsPCRel(IsPCRel), Size(Size), IsTargetThumbFunc(false) {}
-
-  RelocationEntry(unsigned id, uint64_t offset, uint32_t type, int64_t addend,
-                  unsigned SectionA, uint64_t SectionAOffset, unsigned SectionB,
-                  uint64_t SectionBOffset, bool IsPCRel, unsigned Size)
-      : SectionID(id), Offset(offset), RelType(type),
-        Addend(SectionAOffset - SectionBOffset + addend), IsPCRel(IsPCRel),
-        Size(Size), IsTargetThumbFunc(false) {
-    Sections.SectionA = SectionA;
-    Sections.SectionB = SectionB;
-  }
-
-  RelocationEntry(unsigned id, uint64_t offset, uint32_t type, int64_t addend,
-                  unsigned SectionA, uint64_t SectionAOffset, unsigned SectionB,
-                  uint64_t SectionBOffset, bool IsPCRel, unsigned Size,
-                  bool IsTargetThumbFunc)
-      : SectionID(id), Offset(offset), RelType(type),
-        Addend(SectionAOffset - SectionBOffset + addend), IsPCRel(IsPCRel),
-        Size(Size), IsTargetThumbFunc(IsTargetThumbFunc) {
-    Sections.SectionA = SectionA;
-    Sections.SectionB = SectionB;
-  }
-};
-
-class RelocationValueRef {
-public:
-  unsigned SectionID;
-  uint64_t Offset;
-  int64_t Addend;
-  const char *SymbolName;
-  bool IsStubThumb = false;
-  RelocationValueRef() : SectionID(0), Offset(0), Addend(0),
-                         SymbolName(nullptr) {}
-
-  inline bool operator==(const RelocationValueRef &Other) const {
-    return SectionID == Other.SectionID && Offset == Other.Offset &&
-           Addend == Other.Addend && SymbolName == Other.SymbolName &&
-           IsStubThumb == Other.IsStubThumb;
-  }
-  inline bool operator<(const RelocationValueRef &Other) const {
-    if (SectionID != Other.SectionID)
-      return SectionID < Other.SectionID;
-    if (Offset != Other.Offset)
-      return Offset < Other.Offset;
-    if (Addend != Other.Addend)
-      return Addend < Other.Addend;
-    if (IsStubThumb != Other.IsStubThumb)
-      return IsStubThumb < Other.IsStubThumb;
-    return SymbolName < Other.SymbolName;
-  }
-};
-
-/// Symbol info for RuntimeDyld.
-class SymbolTableEntry {
-public:
-  SymbolTableEntry() = default;
-
-  SymbolTableEntry(unsigned SectionID, uint64_t Offset, JITSymbolFlags Flags)
-      : Offset(Offset), SectionID(SectionID), Flags(Flags) {}
-
-  unsigned getSectionID() const { return SectionID; }
-  uint64_t getOffset() const { return Offset; }
-  void setOffset(uint64_t NewOffset) { Offset = NewOffset; }
-
-  JITSymbolFlags getFlags() const { return Flags; }
-
-private:
-  uint64_t Offset = 0;
-  unsigned SectionID = 0;
-  JITSymbolFlags Flags = JITSymbolFlags::None;
-};
-
-typedef StringMap<SymbolTableEntry> RTDyldSymbolTable;
-
-class RuntimeDyldImpl {
-  friend class RuntimeDyld::LoadedObjectInfo;
-  friend class RuntimeDyldCheckerImpl;
-protected:
-  static const unsigned AbsoluteSymbolSection = ~0U;
-
-  // The MemoryManager to load objects into.
-  RuntimeDyld::MemoryManager &MemMgr;
-
-  // The symbol resolver to use for external symbols.
-  JITSymbolResolver &Resolver;
-
-  // Attached RuntimeDyldChecker instance. Null if no instance attached.
-  RuntimeDyldCheckerImpl *Checker;
-
-  // A list of all sections emitted by the dynamic linker.  These sections are
-  // referenced in the code by means of their index in this list - SectionID.
-  typedef SmallVector<SectionEntry, 64> SectionList;
-  SectionList Sections;
-
-  typedef unsigned SID; // Type for SectionIDs
-#define RTDYLD_INVALID_SECTION_ID ((RuntimeDyldImpl::SID)(-1))
-
-  // Keep a map of sections from object file to the SectionID which
-  // references it.
-  typedef std::map<SectionRef, unsigned> ObjSectionToIDMap;
-
-  // A global symbol table for symbols from all loaded modules.
-  RTDyldSymbolTable GlobalSymbolTable;
-
-  // Keep a map of common symbols to their info pairs
-  typedef std::vector<SymbolRef> CommonSymbolList;
-
-  // For each symbol, keep a list of relocations based on it. Anytime
-  // its address is reassigned (the JIT re-compiled the function, e.g.),
-  // the relocations get re-resolved.
-  // The symbol (or section) the relocation is sourced from is the Key
-  // in the relocation list where it's stored.
-  typedef SmallVector<RelocationEntry, 64> RelocationList;
-  // Relocations to sections already loaded. Indexed by SectionID which is the
-  // source of the address. The target where the address will be written is
-  // SectionID/Offset in the relocation itself.
-  std::unordered_map<unsigned, RelocationList> Relocations;
-
-  // Relocations to external symbols that are not yet resolved.  Symbols are
-  // external when they aren't found in the global symbol table of all loaded
-  // modules.  This map is indexed by symbol name.
-  StringMap<RelocationList> ExternalSymbolRelocations;
-
-
-  typedef std::map<RelocationValueRef, uintptr_t> StubMap;
-
-  Triple::ArchType Arch;
-  bool IsTargetLittleEndian;
-  bool IsMipsO32ABI;
-  bool IsMipsN32ABI;
-  bool IsMipsN64ABI;
-
-  // True if all sections should be passed to the memory manager, false if only
-  // sections containing relocations should be. Defaults to 'false'.
-  bool ProcessAllSections;
-
-  // This mutex prevents simultaneously loading objects from two different
-  // threads.  This keeps us from having to protect individual data structures
-  // and guarantees that section allocation requests to the memory manager
-  // won't be interleaved between modules.  It is also used in mapSectionAddress
-  // and resolveRelocations to protect write access to internal data structures.
-  //
-  // loadObject may be called on the same thread during the handling of of
-  // processRelocations, and that's OK.  The handling of the relocation lists
-  // is written in such a way as to work correctly if new elements are added to
-  // the end of the list while the list is being processed.
-  sys::Mutex lock;
-
-  virtual unsigned getMaxStubSize() = 0;
-  virtual unsigned getStubAlignment() = 0;
-
-  bool HasError;
-  std::string ErrorStr;
-
-  uint64_t getSectionLoadAddress(unsigned SectionID) const {
-    return Sections[SectionID].getLoadAddress();
-  }
-
-  uint8_t *getSectionAddress(unsigned SectionID) const {
-    return Sections[SectionID].getAddress();
-  }
-
-  void writeInt16BE(uint8_t *Addr, uint16_t Value) {
-    if (IsTargetLittleEndian)
-      sys::swapByteOrder(Value);
-    *Addr       = (Value >> 8) & 0xFF;
-    *(Addr + 1) = Value & 0xFF;
-  }
-
-  void writeInt32BE(uint8_t *Addr, uint32_t Value) {
-    if (IsTargetLittleEndian)
-      sys::swapByteOrder(Value);
-    *Addr       = (Value >> 24) & 0xFF;
-    *(Addr + 1) = (Value >> 16) & 0xFF;
-    *(Addr + 2) = (Value >> 8) & 0xFF;
-    *(Addr + 3) = Value & 0xFF;
-  }
-
-  void writeInt64BE(uint8_t *Addr, uint64_t Value) {
-    if (IsTargetLittleEndian)
-      sys::swapByteOrder(Value);
-    *Addr       = (Value >> 56) & 0xFF;
-    *(Addr + 1) = (Value >> 48) & 0xFF;
-    *(Addr + 2) = (Value >> 40) & 0xFF;
-    *(Addr + 3) = (Value >> 32) & 0xFF;
-    *(Addr + 4) = (Value >> 24) & 0xFF;
-    *(Addr + 5) = (Value >> 16) & 0xFF;
-    *(Addr + 6) = (Value >> 8) & 0xFF;
-    *(Addr + 7) = Value & 0xFF;
-  }
-
-  virtual void setMipsABI(const ObjectFile &Obj) {
-    IsMipsO32ABI = false;
-    IsMipsN32ABI = false;
-    IsMipsN64ABI = false;
-  }
-
-  /// Endian-aware read Read the least significant Size bytes from Src.
-  uint64_t readBytesUnaligned(uint8_t *Src, unsigned Size) const;
-
-  /// Endian-aware write. Write the least significant Size bytes from Value to
-  /// Dst.
-  void writeBytesUnaligned(uint64_t Value, uint8_t *Dst, unsigned Size) const;
-
-  /// Generate JITSymbolFlags from a libObject symbol.
-  virtual Expected<JITSymbolFlags> getJITSymbolFlags(const SymbolRef &Sym);
-
-  /// Modify the given target address based on the given symbol flags.
-  /// This can be used by subclasses to tweak addresses based on symbol flags,
-  /// For example: the MachO/ARM target uses it to set the low bit if the target
-  /// is a thumb symbol.
-  virtual uint64_t modifyAddressBasedOnFlags(uint64_t Addr,
-                                             JITSymbolFlags Flags) const {
-    return Addr;
-  }
-
-  /// Given the common symbols discovered in the object file, emit a
-  /// new section for them and update the symbol mappings in the object and
-  /// symbol table.
-  Error emitCommonSymbols(const ObjectFile &Obj,
-                          CommonSymbolList &CommonSymbols, uint64_t CommonSize,
-                          uint32_t CommonAlign);
-
-  /// Emits section data from the object file to the MemoryManager.
-  /// \param IsCode if it's true then allocateCodeSection() will be
-  ///        used for emits, else allocateDataSection() will be used.
-  /// \return SectionID.
-  Expected<unsigned> emitSection(const ObjectFile &Obj,
-                                 const SectionRef &Section,
-                                 bool IsCode);
-
-  /// Find Section in LocalSections. If the secton is not found - emit
-  ///        it and store in LocalSections.
-  /// \param IsCode if it's true then allocateCodeSection() will be
-  ///        used for emmits, else allocateDataSection() will be used.
-  /// \return SectionID.
-  Expected<unsigned> findOrEmitSection(const ObjectFile &Obj,
-                                       const SectionRef &Section, bool IsCode,
-                                       ObjSectionToIDMap &LocalSections);
-
-  // Add a relocation entry that uses the given section.
-  void addRelocationForSection(const RelocationEntry &RE, unsigned SectionID);
-
-  // Add a relocation entry that uses the given symbol.  This symbol may
-  // be found in the global symbol table, or it may be external.
-  void addRelocationForSymbol(const RelocationEntry &RE, StringRef SymbolName);
-
-  /// Emits long jump instruction to Addr.
-  /// \return Pointer to the memory area for emitting target address.
-  uint8_t *createStubFunction(uint8_t *Addr, unsigned AbiVariant = 0);
-
-  /// Resolves relocations from Relocs list with address from Value.
-  void resolveRelocationList(const RelocationList &Relocs, uint64_t Value);
-
-  /// A object file specific relocation resolver
-  /// \param RE The relocation to be resolved
-  /// \param Value Target symbol address to apply the relocation action
-  virtual void resolveRelocation(const RelocationEntry &RE, uint64_t Value) = 0;
-
-  /// Parses one or more object file relocations (some object files use
-  ///        relocation pairs) and stores it to Relocations or SymbolRelocations
-  ///        (this depends on the object file type).
-  /// \return Iterator to the next relocation that needs to be parsed.
-  virtual Expected<relocation_iterator>
-  processRelocationRef(unsigned SectionID, relocation_iterator RelI,
-                       const ObjectFile &Obj, ObjSectionToIDMap &ObjSectionToID,
-                       StubMap &Stubs) = 0;
-
-  void applyExternalSymbolRelocations(
-      const StringMap<JITEvaluatedSymbol> ExternalSymbolMap);
-
-  /// Resolve relocations to external symbols.
-  Error resolveExternalSymbols();
-
-  // Compute an upper bound of the memory that is required to load all
-  // sections
-  Error computeTotalAllocSize(const ObjectFile &Obj,
-                              uint64_t &CodeSize, uint32_t &CodeAlign,
-                              uint64_t &RODataSize, uint32_t &RODataAlign,
-                              uint64_t &RWDataSize, uint32_t &RWDataAlign);
-
-  // Compute GOT size
-  unsigned computeGOTSize(const ObjectFile &Obj);
-
-  // Compute the stub buffer size required for a section
-  unsigned computeSectionStubBufSize(const ObjectFile &Obj,
-                                     const SectionRef &Section);
-
-  // Implementation of the generic part of the loadObject algorithm.
-  Expected<ObjSectionToIDMap> loadObjectImpl(const object::ObjectFile &Obj);
-
-  // Return size of Global Offset Table (GOT) entry
-  virtual size_t getGOTEntrySize() { return 0; }
-
-  // Return true if the relocation R may require allocating a GOT entry.
-  virtual bool relocationNeedsGot(const RelocationRef &R) const {
-    return false;
-  }
-
-  // Return true if the relocation R may require allocating a stub.
-  virtual bool relocationNeedsStub(const RelocationRef &R) const {
-    return true;    // Conservative answer
-  }
-
-public:
-  RuntimeDyldImpl(RuntimeDyld::MemoryManager &MemMgr,
-                  JITSymbolResolver &Resolver)
-    : MemMgr(MemMgr), Resolver(Resolver), Checker(nullptr),
-      ProcessAllSections(false), HasError(false) {
-  }
-
-  virtual ~RuntimeDyldImpl();
-
-  void setProcessAllSections(bool ProcessAllSections) {
-    this->ProcessAllSections = ProcessAllSections;
-  }
-
-  void setRuntimeDyldChecker(RuntimeDyldCheckerImpl *Checker) {
-    this->Checker = Checker;
-  }
-
-  virtual std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
-  loadObject(const object::ObjectFile &Obj) = 0;
-
-  uint8_t* getSymbolLocalAddress(StringRef Name) const {
-    // FIXME: Just look up as a function for now. Overly simple of course.
-    // Work in progress.
-    RTDyldSymbolTable::const_iterator pos = GlobalSymbolTable.find(Name);
-    if (pos == GlobalSymbolTable.end())
-      return nullptr;
-    const auto &SymInfo = pos->second;
-    // Absolute symbols do not have a local address.
-    if (SymInfo.getSectionID() == AbsoluteSymbolSection)
-      return nullptr;
-    return getSectionAddress(SymInfo.getSectionID()) + SymInfo.getOffset();
-  }
-
-  JITEvaluatedSymbol getSymbol(StringRef Name) const {
-    // FIXME: Just look up as a function for now. Overly simple of course.
-    // Work in progress.
-    RTDyldSymbolTable::const_iterator pos = GlobalSymbolTable.find(Name);
-    if (pos == GlobalSymbolTable.end())
-      return nullptr;
-    const auto &SymEntry = pos->second;
-    uint64_t SectionAddr = 0;
-    if (SymEntry.getSectionID() != AbsoluteSymbolSection)
-      SectionAddr = getSectionLoadAddress(SymEntry.getSectionID());
-    uint64_t TargetAddr = SectionAddr + SymEntry.getOffset();
-
-    // FIXME: Have getSymbol should return the actual address and the client
-    //        modify it based on the flags. This will require clients to be
-    //        aware of the target architecture, which we should build
-    //        infrastructure for.
-    TargetAddr = modifyAddressBasedOnFlags(TargetAddr, SymEntry.getFlags());
-    return JITEvaluatedSymbol(TargetAddr, SymEntry.getFlags());
-  }
-
-  std::map<StringRef, JITEvaluatedSymbol> getSymbolTable() const {
-    std::map<StringRef, JITEvaluatedSymbol> Result;
-
-    for (auto &KV : GlobalSymbolTable) {
-      auto SectionID = KV.second.getSectionID();
-      uint64_t SectionAddr = 0;
-      if (SectionID != AbsoluteSymbolSection)
-        SectionAddr = getSectionLoadAddress(SectionID);
-      Result[KV.first()] =
-        JITEvaluatedSymbol(SectionAddr + KV.second.getOffset(), KV.second.getFlags());
-    }
-
-    return Result;
-  }
-
-  void resolveRelocations();
-
-  void resolveLocalRelocations();
-
-  static void finalizeAsync(std::unique_ptr<RuntimeDyldImpl> This,
-                            std::function<void(Error)> OnEmitted,
-                            std::unique_ptr<MemoryBuffer> UnderlyingBuffer);
-
-  void reassignSectionAddress(unsigned SectionID, uint64_t Addr);
-
-  void mapSectionAddress(const void *LocalAddress, uint64_t TargetAddress);
-
-  // Is the linker in an error state?
-  bool hasError() { return HasError; }
-
-  // Mark the error condition as handled and continue.
-  void clearError() { HasError = false; }
-
-  // Get the error message.
-  StringRef getErrorString() { return ErrorStr; }
-
-  virtual bool isCompatibleFile(const ObjectFile &Obj) const = 0;
-
-  virtual void registerEHFrames();
-
-  void deregisterEHFrames();
-
-  virtual Error finalizeLoad(const ObjectFile &ObjImg,
-                             ObjSectionToIDMap &SectionMap) {
-    return Error::success();
-  }
-};
-
-} // end namespace llvm
-
-#endif