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annotate lib/ExecutionEngine/RuntimeDyld/RuntimeDyldCOFF.cpp @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 1172e4bd9c6f
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1 //===-- RuntimeDyldCOFF.cpp - Run-time dynamic linker for MC-JIT -*- C++ -*-==//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // Implementation of COFF support for the MC-JIT runtime dynamic linker.
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11 //
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12 //===----------------------------------------------------------------------===//
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13
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14 #include "RuntimeDyldCOFF.h"
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15 #include "Targets/RuntimeDyldCOFFI386.h"
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16 #include "Targets/RuntimeDyldCOFFX86_64.h"
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17 #include "llvm/ADT/STLExtras.h"
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18 #include "llvm/ADT/Triple.h"
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19 #include "llvm/Object/ObjectFile.h"
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20
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21 using namespace llvm;
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22 using namespace llvm::object;
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23
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24 #define DEBUG_TYPE "dyld"
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25
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26 namespace {
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27
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28 class LoadedCOFFObjectInfo final
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29 : public RuntimeDyld::LoadedObjectInfoHelper<LoadedCOFFObjectInfo> {
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30 public:
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31 LoadedCOFFObjectInfo(RuntimeDyldImpl &RTDyld, ObjSectionToIDMap ObjSecToIDMap)
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32 : LoadedObjectInfoHelper(RTDyld, std::move(ObjSecToIDMap)) {}
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33
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34 OwningBinary<ObjectFile>
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35 getObjectForDebug(const ObjectFile &Obj) const override {
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36 return OwningBinary<ObjectFile>();
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37 }
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38 };
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39 }
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40
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41 namespace llvm {
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42
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43 std::unique_ptr<RuntimeDyldCOFF>
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44 llvm::RuntimeDyldCOFF::create(Triple::ArchType Arch,
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45 RuntimeDyld::MemoryManager &MemMgr,
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46 RuntimeDyld::SymbolResolver &Resolver) {
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47 switch (Arch) {
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48 default:
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49 llvm_unreachable("Unsupported target for RuntimeDyldCOFF.");
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50 break;
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51 case Triple::x86:
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52 return make_unique<RuntimeDyldCOFFI386>(MemMgr, Resolver);
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53 case Triple::x86_64:
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54 return make_unique<RuntimeDyldCOFFX86_64>(MemMgr, Resolver);
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55 }
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56 }
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57
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58 std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
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59 RuntimeDyldCOFF::loadObject(const object::ObjectFile &O) {
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60 return llvm::make_unique<LoadedCOFFObjectInfo>(*this, loadObjectImpl(O));
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61 }
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62
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63 uint64_t RuntimeDyldCOFF::getSymbolOffset(const SymbolRef &Sym) {
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64 // The value in a relocatable COFF object is the offset.
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65 return Sym.getValue();
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66 }
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67
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68 bool RuntimeDyldCOFF::isCompatibleFile(const object::ObjectFile &Obj) const {
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69 return Obj.isCOFF();
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70 }
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71
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72 } // namespace llvm