1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
//===-- 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
|
