1//===-- RuntimeDyldCOFF.h - Run-time dynamic linker for MC-JIT ---*- C++ -*-==//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// COFF support for MC-JIT runtime dynamic linker.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_RUNTIME_DYLD_COFF_H
14#define LLVM_RUNTIME_DYLD_COFF_H
15
16#include "RuntimeDyldImpl.h"
17
18#define DEBUG_TYPE "dyld"
19
20using namespace llvm;
21
22namespace llvm {
23
24// Common base class for COFF dynamic linker support.
25// Concrete subclasses for each target can be found in ./Targets.
26class RuntimeDyldCOFF : public RuntimeDyldImpl {
27
28public:
29 std::unique_ptr<RuntimeDyld::LoadedObjectInfo>
30 loadObject(const object::ObjectFile &Obj) override;
31 bool isCompatibleFile(const object::ObjectFile &Obj) const override;
32
33 static std::unique_ptr<RuntimeDyldCOFF>
34 create(Triple::ArchType Arch, RuntimeDyld::MemoryManager &MemMgr,
35 JITSymbolResolver &Resolver);
36
37protected:
38 RuntimeDyldCOFF(RuntimeDyld::MemoryManager &MemMgr,
39 JITSymbolResolver &Resolver, unsigned PointerSize,
40 uint32_t PointerReloc)
41 : RuntimeDyldImpl(MemMgr, Resolver), PointerSize(PointerSize),
42 PointerReloc(PointerReloc) {
43 assert((PointerSize == 4 || PointerSize == 8) && "Unexpected pointer size");
44 }
45
46 uint64_t getSymbolOffset(const SymbolRef &Sym);
47 uint64_t getDLLImportOffset(unsigned SectionID, StubMap &Stubs,
48 StringRef Name, bool SetSectionIDMinus1 = false);
49
50 static constexpr StringRef getImportSymbolPrefix() { return "__imp_"; }
51
52private:
53 unsigned PointerSize;
54 uint32_t PointerReloc;
55};
56
57} // end namespace llvm
58
59#undef DEBUG_TYPE
60
61#endif
62