DbiModuleDescriptor.cpp revision 341825 
1//===- DbiModuleDescriptor.cpp - PDB module information -------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
11#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
12#include "llvm/Support/BinaryStreamReader.h"
13#include "llvm/Support/Endian.h"
14#include "llvm/Support/Error.h"
15#include "llvm/Support/MathExtras.h"
16#include <cstdint>
17
18using namespace llvm;
19using namespace llvm::pdb;
20using namespace llvm::support;
21
22DbiModuleDescriptor::DbiModuleDescriptor() = default;
23
24DbiModuleDescriptor::DbiModuleDescriptor(const DbiModuleDescriptor &Info) =
25    default;
26
27DbiModuleDescriptor::~DbiModuleDescriptor() = default;
28
29Error DbiModuleDescriptor::initialize(BinaryStreamRef Stream,
30                                      DbiModuleDescriptor &Info) {
31  BinaryStreamReader Reader(Stream);
32  if (auto EC = Reader.readObject(Info.Layout))
33    return EC;
34
35  if (auto EC = Reader.readCString(Info.ModuleName))
36    return EC;
37
38  if (auto EC = Reader.readCString(Info.ObjFileName))
39    return EC;
40  return Error::success();
41}
42
43bool DbiModuleDescriptor::hasECInfo() const {
44  return (Layout->Flags & ModInfoFlags::HasECFlagMask) != 0;
45}
46
47uint16_t DbiModuleDescriptor::getTypeServerIndex() const {
48  return (Layout->Flags & ModInfoFlags::TypeServerIndexMask) >>
49         ModInfoFlags::TypeServerIndexShift;
50}
51
52const SectionContrib &DbiModuleDescriptor::getSectionContrib() const {
53  return Layout->SC;
54}
55
56uint16_t DbiModuleDescriptor::getModuleStreamIndex() const {
57  return Layout->ModDiStream;
58}
59
60uint32_t DbiModuleDescriptor::getSymbolDebugInfoByteSize() const {
61  return Layout->SymBytes;
62}
63
64uint32_t DbiModuleDescriptor::getC11LineInfoByteSize() const {
65  return Layout->C11Bytes;
66}
67
68uint32_t DbiModuleDescriptor::getC13LineInfoByteSize() const {
69  return Layout->C13Bytes;
70}
71
72uint32_t DbiModuleDescriptor::getNumberOfFiles() const {
73  return Layout->NumFiles;
74}
75
76uint32_t DbiModuleDescriptor::getSourceFileNameIndex() const {
77  return Layout->SrcFileNameNI;
78}
79
80uint32_t DbiModuleDescriptor::getPdbFilePathNameIndex() const {
81  return Layout->PdbFilePathNI;
82}
83
84StringRef DbiModuleDescriptor::getModuleName() const { return ModuleName; }
85
86StringRef DbiModuleDescriptor::getObjFileName() const { return ObjFileName; }
87
88uint32_t DbiModuleDescriptor::getRecordLength() const {
89  uint32_t M = ModuleName.str().size() + 1;
90  uint32_t O = ObjFileName.str().size() + 1;
91  uint32_t Size = sizeof(ModuleInfoHeader) + M + O;
92  Size = alignTo(Size, 4);
93  return Size;
94}
95