1 //===-- RuntimeDyldCOFF.cpp - Run-time dynamic linker for MC-JIT -*- C++ -*-==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Implementation of COFF support for the MC-JIT runtime dynamic linker.
12 //===----------------------------------------------------------------------===//
14 #include "RuntimeDyldCOFF.h"
15 #include "Targets/RuntimeDyldCOFFI386.h"
16 #include "Targets/RuntimeDyldCOFFThumb.h"
17 #include "Targets/RuntimeDyldCOFFX86_64.h"
18 #include "llvm/ADT/STLExtras.h"
19 #include "llvm/ADT/Triple.h"
20 #include "llvm/Object/ObjectFile.h"
23 using namespace llvm::object;
25 #define DEBUG_TYPE "dyld"
29 class LoadedCOFFObjectInfo final
30 : public LoadedObjectInfoHelper<LoadedCOFFObjectInfo,
31 RuntimeDyld::LoadedObjectInfo> {
34 RuntimeDyldImpl &RTDyld,
35 RuntimeDyld::LoadedObjectInfo::ObjSectionToIDMap ObjSecToIDMap)
36 : LoadedObjectInfoHelper(RTDyld, std::move(ObjSecToIDMap)) {}
38 OwningBinary<ObjectFile>
39 getObjectForDebug(const ObjectFile &Obj) const override {
40 return OwningBinary<ObjectFile>();
47 std::unique_ptr<RuntimeDyldCOFF>
48 llvm::RuntimeDyldCOFF::create(Triple::ArchType Arch,
49 RuntimeDyld::MemoryManager &MemMgr,
50 JITSymbolResolver &Resolver) {
52 default: llvm_unreachable("Unsupported target for RuntimeDyldCOFF.");
54 return make_unique<RuntimeDyldCOFFI386>(MemMgr, Resolver);
56 return make_unique<RuntimeDyldCOFFThumb>(MemMgr, Resolver);
58 return make_unique<RuntimeDyldCOFFX86_64>(MemMgr, Resolver);
62 std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
63 RuntimeDyldCOFF::loadObject(const object::ObjectFile &O) {
64 if (auto ObjSectionToIDOrErr = loadObjectImpl(O)) {
65 return llvm::make_unique<LoadedCOFFObjectInfo>(*this, *ObjSectionToIDOrErr);
68 raw_string_ostream ErrStream(ErrorStr);
69 logAllUnhandledErrors(ObjSectionToIDOrErr.takeError(), ErrStream, "");
74 uint64_t RuntimeDyldCOFF::getSymbolOffset(const SymbolRef &Sym) {
75 // The value in a relocatable COFF object is the offset.
76 return Sym.getValue();
79 bool RuntimeDyldCOFF::isCompatibleFile(const object::ObjectFile &Obj) const {