forked from OSchip/llvm-project
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
//===-- RuntimeDyldCOFF.cpp - Run-time dynamic linker for MC-JIT -*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Implementation of COFF support for the MC-JIT runtime dynamic linker.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "RuntimeDyldCOFF.h"
|
|
#include "Targets/RuntimeDyldCOFFI386.h"
|
|
#include "Targets/RuntimeDyldCOFFThumb.h"
|
|
#include "Targets/RuntimeDyldCOFFX86_64.h"
|
|
#include "llvm/ADT/STLExtras.h"
|
|
#include "llvm/ADT/Triple.h"
|
|
#include "llvm/Object/ObjectFile.h"
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::object;
|
|
|
|
#define DEBUG_TYPE "dyld"
|
|
|
|
namespace {
|
|
|
|
class LoadedCOFFObjectInfo final
|
|
: public LoadedObjectInfoHelper<LoadedCOFFObjectInfo,
|
|
RuntimeDyld::LoadedObjectInfo> {
|
|
public:
|
|
LoadedCOFFObjectInfo(
|
|
RuntimeDyldImpl &RTDyld,
|
|
RuntimeDyld::LoadedObjectInfo::ObjSectionToIDMap ObjSecToIDMap)
|
|
: LoadedObjectInfoHelper(RTDyld, std::move(ObjSecToIDMap)) {}
|
|
|
|
OwningBinary<ObjectFile>
|
|
getObjectForDebug(const ObjectFile &Obj) const override {
|
|
return OwningBinary<ObjectFile>();
|
|
}
|
|
};
|
|
}
|
|
|
|
namespace llvm {
|
|
|
|
std::unique_ptr<RuntimeDyldCOFF>
|
|
llvm::RuntimeDyldCOFF::create(Triple::ArchType Arch,
|
|
RuntimeDyld::MemoryManager &MemMgr,
|
|
JITSymbolResolver &Resolver) {
|
|
switch (Arch) {
|
|
default: llvm_unreachable("Unsupported target for RuntimeDyldCOFF.");
|
|
case Triple::x86:
|
|
return make_unique<RuntimeDyldCOFFI386>(MemMgr, Resolver);
|
|
case Triple::thumb:
|
|
return make_unique<RuntimeDyldCOFFThumb>(MemMgr, Resolver);
|
|
case Triple::x86_64:
|
|
return make_unique<RuntimeDyldCOFFX86_64>(MemMgr, Resolver);
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
|
|
RuntimeDyldCOFF::loadObject(const object::ObjectFile &O) {
|
|
if (auto ObjSectionToIDOrErr = loadObjectImpl(O)) {
|
|
return llvm::make_unique<LoadedCOFFObjectInfo>(*this, *ObjSectionToIDOrErr);
|
|
} else {
|
|
HasError = true;
|
|
raw_string_ostream ErrStream(ErrorStr);
|
|
logAllUnhandledErrors(ObjSectionToIDOrErr.takeError(), ErrStream);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
uint64_t RuntimeDyldCOFF::getSymbolOffset(const SymbolRef &Sym) {
|
|
// The value in a relocatable COFF object is the offset.
|
|
return Sym.getValue();
|
|
}
|
|
|
|
bool RuntimeDyldCOFF::isCompatibleFile(const object::ObjectFile &Obj) const {
|
|
return Obj.isCOFF();
|
|
}
|
|
|
|
} // namespace llvm
|