Mercurial > hg > CbC > CbC_llvm

comparison lib/DebugInfo/PDB/Native/InjectedSourceStream.cpp @ 148:63bd29f05246

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
merged
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 19:46:37 +0900
parents c2174574ed3a
children
comparison
equal deleted inserted replaced
146:3fc4d5c3e21e 148:63bd29f05246
1 //===- InjectedSourceStream.cpp - PDB Headerblock Stream Access -----------===//
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 #include "llvm/DebugInfo/PDB/Native/InjectedSourceStream.h"
10
11 #include "llvm/DebugInfo/MSF/MappedBlockStream.h"
12 #include "llvm/DebugInfo/PDB/Native/Hash.h"
13 #include "llvm/DebugInfo/PDB/Native/PDBStringTable.h"
14 #include "llvm/DebugInfo/PDB/Native/RawConstants.h"
15 #include "llvm/DebugInfo/PDB/Native/RawTypes.h"
16 #include "llvm/Support/BinaryStreamReader.h"
17 #include "llvm/Support/Endian.h"
18
19 using namespace llvm;
20 using namespace llvm::msf;
21 using namespace llvm::support;
22 using namespace llvm::pdb;
23
24 InjectedSourceStream::InjectedSourceStream(
25 std::unique_ptr<MappedBlockStream> Stream)
26 : Stream(std::move(Stream)) {}
27
28 Error InjectedSourceStream::reload(const PDBStringTable &Strings) {
29 BinaryStreamReader Reader(*Stream);
30
31 if (auto EC = Reader.readObject(Header))
32 return EC;
33
34 if (Header->Version !=
35 static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))
36 return make_error<RawError>(raw_error_code::corrupt_file,
37 "Invalid headerblock header version");
38
39 if (auto EC = InjectedSourceTable.load(Reader))
40 return EC;
41
42 for (const auto& Entry : *this) {
43 if (Entry.second.Size != sizeof(SrcHeaderBlockEntry))
44 return make_error<RawError>(raw_error_code::corrupt_file,
45 "Invalid headerbock entry size");
46 if (Entry.second.Version !=
47 static_cast<uint32_t>(PdbRaw_SrcHeaderBlockVer::SrcVerOne))
48 return make_error<RawError>(raw_error_code::corrupt_file,
49 "Invalid headerbock entry version");
50
51 // Check that all name references are valid.
52 auto Name = Strings.getStringForID(Entry.second.FileNI);
53 if (!Name)
54 return Name.takeError();
55 auto ObjName = Strings.getStringForID(Entry.second.ObjNI);
56 if (!ObjName)
57 return ObjName.takeError();
58 auto VName = Strings.getStringForID(Entry.second.VFileNI);
59 if (!VName)
60 return VName.takeError();
61 }
62
63 assert(Reader.bytesRemaining() == 0);
64 return Error::success();
65 }