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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 
18 using namespace llvm;
19 using namespace llvm::pdb;
20 using namespace llvm::support;
21 
22 DbiModuleDescriptor::DbiModuleDescriptor() = default;
23 
24 DbiModuleDescriptor::DbiModuleDescriptor(const DbiModuleDescriptor &Info) =
25     default;
26 
27 DbiModuleDescriptor::~DbiModuleDescriptor() = default;
28 
initialize(BinaryStreamRef Stream,DbiModuleDescriptor & Info)29 Error 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 
hasECInfo() const43 bool DbiModuleDescriptor::hasECInfo() const {
44   return (Layout->Flags & ModInfoFlags::HasECFlagMask) != 0;
45 }
46 
getTypeServerIndex() const47 uint16_t DbiModuleDescriptor::getTypeServerIndex() const {
48   return (Layout->Flags & ModInfoFlags::TypeServerIndexMask) >>
49          ModInfoFlags::TypeServerIndexShift;
50 }
51 
getSectionContrib() const52 const SectionContrib &DbiModuleDescriptor::getSectionContrib() const {
53   return Layout->SC;
54 }
55 
getModuleStreamIndex() const56 uint16_t DbiModuleDescriptor::getModuleStreamIndex() const {
57   return Layout->ModDiStream;
58 }
59 
getSymbolDebugInfoByteSize() const60 uint32_t DbiModuleDescriptor::getSymbolDebugInfoByteSize() const {
61   return Layout->SymBytes;
62 }
63 
getC11LineInfoByteSize() const64 uint32_t DbiModuleDescriptor::getC11LineInfoByteSize() const {
65   return Layout->C11Bytes;
66 }
67 
getC13LineInfoByteSize() const68 uint32_t DbiModuleDescriptor::getC13LineInfoByteSize() const {
69   return Layout->C13Bytes;
70 }
71 
getNumberOfFiles() const72 uint32_t DbiModuleDescriptor::getNumberOfFiles() const {
73   return Layout->NumFiles;
74 }
75 
getSourceFileNameIndex() const76 uint32_t DbiModuleDescriptor::getSourceFileNameIndex() const {
77   return Layout->SrcFileNameNI;
78 }
79 
getPdbFilePathNameIndex() const80 uint32_t DbiModuleDescriptor::getPdbFilePathNameIndex() const {
81   return Layout->PdbFilePathNI;
82 }
83 
getModuleName() const84 StringRef DbiModuleDescriptor::getModuleName() const { return ModuleName; }
85 
getObjFileName() const86 StringRef DbiModuleDescriptor::getObjFileName() const { return ObjFileName; }
87 
getRecordLength() const88 uint32_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