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annotate lib/ExecutionEngine/RuntimeDyld/RuntimeDyldCOFF.cpp @ 148:63bd29f05246

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merged
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 19:46:37 +0900
parents c2174574ed3a
children
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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 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // Implementation of COFF support for the MC-JIT runtime dynamic linker.
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10 //
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11 //===----------------------------------------------------------------------===//
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12
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13 #include "RuntimeDyldCOFF.h"
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14 #include "Targets/RuntimeDyldCOFFI386.h"
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15 #include "Targets/RuntimeDyldCOFFThumb.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 LoadedObjectInfoHelper<LoadedCOFFObjectInfo,
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30 RuntimeDyld::LoadedObjectInfo> {
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31 public:
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32 LoadedCOFFObjectInfo(
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33 RuntimeDyldImpl &RTDyld,
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34 RuntimeDyld::LoadedObjectInfo::ObjSectionToIDMap ObjSecToIDMap)
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35 : LoadedObjectInfoHelper(RTDyld, std::move(ObjSecToIDMap)) {}
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36
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37 OwningBinary<ObjectFile>
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38 getObjectForDebug(const ObjectFile &Obj) const override {
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39 return OwningBinary<ObjectFile>();
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40 }
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41 };
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42 }
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43
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44 namespace llvm {
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45
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46 std::unique_ptr<RuntimeDyldCOFF>
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47 llvm::RuntimeDyldCOFF::create(Triple::ArchType Arch,
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48 RuntimeDyld::MemoryManager &MemMgr,
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49 JITSymbolResolver &Resolver) {
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50 switch (Arch) {
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51 default: llvm_unreachable("Unsupported target for RuntimeDyldCOFF.");
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52 case Triple::x86:
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53 return make_unique<RuntimeDyldCOFFI386>(MemMgr, Resolver);
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54 case Triple::thumb:
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55 return make_unique<RuntimeDyldCOFFThumb>(MemMgr, Resolver);
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56 case Triple::x86_64:
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57 return make_unique<RuntimeDyldCOFFX86_64>(MemMgr, Resolver);
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58 }
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59 }
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61 std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
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62 RuntimeDyldCOFF::loadObject(const object::ObjectFile &O) {
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63 if (auto ObjSectionToIDOrErr = loadObjectImpl(O)) {
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64 return llvm::make_unique<LoadedCOFFObjectInfo>(*this, *ObjSectionToIDOrErr);
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65 } else {
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66 HasError = true;
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67 raw_string_ostream ErrStream(ErrorStr);
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68 logAllUnhandledErrors(ObjSectionToIDOrErr.takeError(), ErrStream);
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69 return nullptr;
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70 }
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71 }
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73 uint64_t RuntimeDyldCOFF::getSymbolOffset(const SymbolRef &Sym) {
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74 // The value in a relocatable COFF object is the offset.
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75 return Sym.getValue();
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76 }
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78 bool RuntimeDyldCOFF::isCompatibleFile(const object::ObjectFile &Obj) const {
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79 return Obj.isCOFF();
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80 }
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81
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82 } // namespace llvm