LLVM  16.0.0git
COFFWriter.h
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1 //===- COFFWriter.h ---------------------------------------------*- 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 #ifndef LLVM_LIB_OBJCOPY_COFF_COFFWRITER_H
10 #define LLVM_LIB_OBJCOPY_COFF_COFFWRITER_H
11 
13 #include "llvm/Support/Error.h"
15 #include <cstddef>
16 #include <utility>
17 
18 namespace llvm {
19 namespace objcopy {
20 namespace coff {
21 
22 struct Object;
23 
24 class COFFWriter {
25  Object &Obj;
26  std::unique_ptr<WritableMemoryBuffer> Buf;
27  raw_ostream &Out;
28 
29  size_t FileSize;
30  size_t FileAlignment;
31  size_t SizeOfInitializedData;
32  StringTableBuilder StrTabBuilder;
33 
34  template <class SymbolTy> std::pair<size_t, size_t> finalizeSymbolTable();
35  Error finalizeRelocTargets();
36  Error finalizeSymbolContents();
37  void layoutSections();
38  Expected<size_t> finalizeStringTable();
39 
40  Error finalize(bool IsBigObj);
41 
42  void writeHeaders(bool IsBigObj);
43  void writeSections();
44  template <class SymbolTy> void writeSymbolStringTables();
45 
46  Error write(bool IsBigObj);
47 
48  Error patchDebugDirectory();
49  Expected<uint32_t> virtualAddressToFileAddress(uint32_t RVA);
50 
51 public:
52  virtual ~COFFWriter() {}
53  Error write();
54 
56  : Obj(Obj), Out(Out), StrTabBuilder(StringTableBuilder::WinCOFF) {}
57 };
58 
59 } // end namespace coff
60 } // end namespace objcopy
61 } // end namespace llvm
62 
63 #endif // LLVM_LIB_OBJCOPY_COFF_COFFWRITER_H
MemoryBuffer.h
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
llvm::objcopy::coff::COFFWriter::COFFWriter
COFFWriter(Object &Obj, raw_ostream &Out)
Definition: COFFWriter.h:55
Error.h
llvm::Expected
Tagged union holding either a T or a Error.
Definition: APFloat.h:41
StringTableBuilder.h
llvm::objcopy::coff::Object
Definition: COFFObject.h:96
llvm::raw_ostream
This class implements an extremely fast bulk output stream that can only output to a stream.
Definition: raw_ostream.h:52
llvm::OutputFileType::Object
@ Object
llvm::objcopy::coff::COFFWriter
Definition: COFFWriter.h:24
uint32_t
llvm::Error
Lightweight error class with error context and mandatory checking.
Definition: Error.h:155
llvm::StringTableBuilder
Utility for building string tables with deduplicated suffixes.
Definition: StringTableBuilder.h:23
llvm::objcopy::coff::COFFWriter::write
Error write()
Definition: COFFWriter.cpp:456
llvm::objcopy::coff::COFFWriter::~COFFWriter
virtual ~COFFWriter()
Definition: COFFWriter.h:52