1 files changed, 0 insertions, 248 deletions
diff --git a/contrib/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOI386.h b/contrib/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOI386.h
deleted file mode 100644
index f0de27ba14bb..000000000000
--- a/contrib/llvm/lib/ExecutionEngine/RuntimeDyld/Targets/RuntimeDyldMachOI386.h
+++ /dev/null
@@ -1,248 +0,0 @@
-//===---- RuntimeDyldMachOI386.h ---- MachO/I386 specific code. ---*- C++ -*-=//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDMACHOI386_H
-#define LLVM_LIB_EXECUTIONENGINE_RUNTIMEDYLD_TARGETS_RUNTIMEDYLDMACHOI386_H
-
-#include "../RuntimeDyldMachO.h"
-#include <string>
-
-#define DEBUG_TYPE "dyld"
-
-namespace llvm {
-
-class RuntimeDyldMachOI386
-    : public RuntimeDyldMachOCRTPBase<RuntimeDyldMachOI386> {
-public:
-
-  typedef uint32_t TargetPtrT;
-
-  RuntimeDyldMachOI386(RuntimeDyld::MemoryManager &MM,
-                       JITSymbolResolver &Resolver)
-      : RuntimeDyldMachOCRTPBase(MM, Resolver) {}
-
-  unsigned getMaxStubSize() const override { return 0; }
-
-  unsigned getStubAlignment() override { return 1; }
-
-  Expected<relocation_iterator>
-  processRelocationRef(unsigned SectionID, relocation_iterator RelI,
-                       const ObjectFile &BaseObjT,
-                       ObjSectionToIDMap &ObjSectionToID,
-                       StubMap &Stubs) override {
-    const MachOObjectFile &Obj =
-        static_cast<const MachOObjectFile &>(BaseObjT);
-    MachO::any_relocation_info RelInfo =
-        Obj.getRelocation(RelI->getRawDataRefImpl());
-    uint32_t RelType = Obj.getAnyRelocationType(RelInfo);
-
-    if (Obj.isRelocationScattered(RelInfo)) {
-      if (RelType == MachO::GENERIC_RELOC_SECTDIFF ||
-          RelType == MachO::GENERIC_RELOC_LOCAL_SECTDIFF)
-        return processSECTDIFFRelocation(SectionID, RelI, Obj,
-                                         ObjSectionToID);
-      else if (RelType == MachO::GENERIC_RELOC_VANILLA)
-        return processScatteredVANILLA(SectionID, RelI, Obj, ObjSectionToID);
-      return make_error<RuntimeDyldError>(("Unhandled I386 scattered relocation "
-                                           "type: " + Twine(RelType)).str());
-    }
-
-    switch (RelType) {
-    UNIMPLEMENTED_RELOC(MachO::GENERIC_RELOC_PAIR);
-    UNIMPLEMENTED_RELOC(MachO::GENERIC_RELOC_PB_LA_PTR);
-    UNIMPLEMENTED_RELOC(MachO::GENERIC_RELOC_TLV);
-    default:
-      if (RelType > MachO::GENERIC_RELOC_TLV)
-        return make_error<RuntimeDyldError>(("MachO I386 relocation type " +
-                                             Twine(RelType) +
-                                             " is out of range").str());
-      break;
-    }
-
-    RelocationEntry RE(getRelocationEntry(SectionID, Obj, RelI));
-    RE.Addend = memcpyAddend(RE);
-    RelocationValueRef Value;
-    if (auto ValueOrErr = getRelocationValueRef(Obj, RelI, RE, ObjSectionToID))
-      Value = *ValueOrErr;
-    else
-      return ValueOrErr.takeError();
-
-    // Addends for external, PC-rel relocations on i386 point back to the zero
-    // offset. Calculate the final offset from the relocation target instead.
-    // This allows us to use the same logic for both external and internal
-    // relocations in resolveI386RelocationRef.
-    // bool IsExtern = Obj.getPlainRelocationExternal(RelInfo);
-    // if (IsExtern && RE.IsPCRel) {
-    //   uint64_t RelocAddr = 0;
-    //   RelI->getAddress(RelocAddr);
-    //   Value.Addend += RelocAddr + 4;
-    // }
-    if (RE.IsPCRel)
-      makeValueAddendPCRel(Value, RelI, 1 << RE.Size);
-
-    RE.Addend = Value.Offset;
-
-    if (Value.SymbolName)
-      addRelocationForSymbol(RE, Value.SymbolName);
-    else
-      addRelocationForSection(RE, Value.SectionID);
-
-    return ++RelI;
-  }
-
-  void resolveRelocation(const RelocationEntry &RE, uint64_t Value) override {
-    LLVM_DEBUG(dumpRelocationToResolve(RE, Value));
-
-    const SectionEntry &Section = Sections[RE.SectionID];
-    uint8_t *LocalAddress = Section.getAddressWithOffset(RE.Offset);
-
-    if (RE.IsPCRel) {
-      uint64_t FinalAddress = Section.getLoadAddressWithOffset(RE.Offset);
-      Value -= FinalAddress + 4; // see MachOX86_64::resolveRelocation.
-    }
-
-    switch (RE.RelType) {
-    case MachO::GENERIC_RELOC_VANILLA:
-      writeBytesUnaligned(Value + RE.Addend, LocalAddress, 1 << RE.Size);
-      break;
-    case MachO::GENERIC_RELOC_SECTDIFF:
-    case MachO::GENERIC_RELOC_LOCAL_SECTDIFF: {
-      uint64_t SectionABase = Sections[RE.Sections.SectionA].getLoadAddress();
-      uint64_t SectionBBase = Sections[RE.Sections.SectionB].getLoadAddress();
-      assert((Value == SectionABase || Value == SectionBBase) &&
-             "Unexpected SECTDIFF relocation value.");
-      Value = SectionABase - SectionBBase + RE.Addend;
-      writeBytesUnaligned(Value, LocalAddress, 1 << RE.Size);
-      break;
-    }
-    default:
-      llvm_unreachable("Invalid relocation type!");
-    }
-  }
-
-  Error finalizeSection(const ObjectFile &Obj, unsigned SectionID,
-                       const SectionRef &Section) {
-    StringRef Name;
-    Section.getName(Name);
-
-    if (Name == "__jump_table")
-      return populateJumpTable(cast<MachOObjectFile>(Obj), Section, SectionID);
-    else if (Name == "__pointers")
-      return populateIndirectSymbolPointersSection(cast<MachOObjectFile>(Obj),
-                                                   Section, SectionID);
-    return Error::success();
-  }
-
-private:
-  Expected<relocation_iterator>
-  processSECTDIFFRelocation(unsigned SectionID, relocation_iterator RelI,
-                            const ObjectFile &BaseObjT,
-                            ObjSectionToIDMap &ObjSectionToID) {
-    const MachOObjectFile &Obj =
-        static_cast<const MachOObjectFile&>(BaseObjT);
-    MachO::any_relocation_info RE =
-        Obj.getRelocation(RelI->getRawDataRefImpl());
-
-    SectionEntry &Section = Sections[SectionID];
-    uint32_t RelocType = Obj.getAnyRelocationType(RE);
-    bool IsPCRel = Obj.getAnyRelocationPCRel(RE);
-    unsigned Size = Obj.getAnyRelocationLength(RE);
-    uint64_t Offset = RelI->getOffset();
-    uint8_t *LocalAddress = Section.getAddressWithOffset(Offset);
-    unsigned NumBytes = 1 << Size;
-    uint64_t Addend = readBytesUnaligned(LocalAddress, NumBytes);
-
-    ++RelI;
-    MachO::any_relocation_info RE2 =
-        Obj.getRelocation(RelI->getRawDataRefImpl());
-
-    uint32_t AddrA = Obj.getScatteredRelocationValue(RE);
-    section_iterator SAI = getSectionByAddress(Obj, AddrA);
-    assert(SAI != Obj.section_end() && "Can't find section for address A");
-    uint64_t SectionABase = SAI->getAddress();
-    uint64_t SectionAOffset = AddrA - SectionABase;
-    SectionRef SectionA = *SAI;
-    bool IsCode = SectionA.isText();
-    uint32_t SectionAID = ~0U;
-    if (auto SectionAIDOrErr =
-        findOrEmitSection(Obj, SectionA, IsCode, ObjSectionToID))
-      SectionAID = *SectionAIDOrErr;
-    else
-      return SectionAIDOrErr.takeError();
-
-    uint32_t AddrB = Obj.getScatteredRelocationValue(RE2);
-    section_iterator SBI = getSectionByAddress(Obj, AddrB);
-    assert(SBI != Obj.section_end() && "Can't find section for address B");
-    uint64_t SectionBBase = SBI->getAddress();
-    uint64_t SectionBOffset = AddrB - SectionBBase;
-    SectionRef SectionB = *SBI;
-    uint32_t SectionBID = ~0U;
-    if (auto SectionBIDOrErr =
-        findOrEmitSection(Obj, SectionB, IsCode, ObjSectionToID))
-      SectionBID = *SectionBIDOrErr;
-    else
-      return SectionBIDOrErr.takeError();
-
-    // Compute the addend 'C' from the original expression 'A - B + C'.
-    Addend -= AddrA - AddrB;
-
-    LLVM_DEBUG(dbgs() << "Found SECTDIFF: AddrA: " << AddrA
-                      << ", AddrB: " << AddrB << ", Addend: " << Addend
-                      << ", SectionA ID: " << SectionAID << ", SectionAOffset: "
-                      << SectionAOffset << ", SectionB ID: " << SectionBID
-                      << ", SectionBOffset: " << SectionBOffset << "\n");
-    RelocationEntry R(SectionID, Offset, RelocType, Addend, SectionAID,
-                      SectionAOffset, SectionBID, SectionBOffset,
-                      IsPCRel, Size);
-
-    addRelocationForSection(R, SectionAID);
-
-    return ++RelI;
-  }
-
-  // Populate stubs in __jump_table section.
-  Error populateJumpTable(const MachOObjectFile &Obj,
-                          const SectionRef &JTSection,
-                         unsigned JTSectionID) {
-    MachO::dysymtab_command DySymTabCmd = Obj.getDysymtabLoadCommand();
-    MachO::section Sec32 = Obj.getSection(JTSection.getRawDataRefImpl());
-    uint32_t JTSectionSize = Sec32.size;
-    unsigned FirstIndirectSymbol = Sec32.reserved1;
-    unsigned JTEntrySize = Sec32.reserved2;
-    unsigned NumJTEntries = JTSectionSize / JTEntrySize;
-    uint8_t *JTSectionAddr = getSectionAddress(JTSectionID);
-    unsigned JTEntryOffset = 0;
-
-    if (JTSectionSize % JTEntrySize != 0)
-      return make_error<RuntimeDyldError>("Jump-table section does not contain "
-                                          "a whole number of stubs?");
-
-    for (unsigned i = 0; i < NumJTEntries; ++i) {
-      unsigned SymbolIndex =
-          Obj.getIndirectSymbolTableEntry(DySymTabCmd, FirstIndirectSymbol + i);
-      symbol_iterator SI = Obj.getSymbolByIndex(SymbolIndex);
-      Expected<StringRef> IndirectSymbolName = SI->getName();
-      if (!IndirectSymbolName)
-        return IndirectSymbolName.takeError();
-      uint8_t *JTEntryAddr = JTSectionAddr + JTEntryOffset;
-      createStubFunction(JTEntryAddr);
-      RelocationEntry RE(JTSectionID, JTEntryOffset + 1,
-                         MachO::GENERIC_RELOC_VANILLA, 0, true, 2);
-      addRelocationForSymbol(RE, *IndirectSymbolName);
-      JTEntryOffset += JTEntrySize;
-    }
-
-    return Error::success();
-  }
-
-};
-}
-
-#undef DEBUG_TYPE
-
-#endif