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[pdb] Parse the module info stream for each module.
Differential Revision: http://reviews.llvm.org/D20026 Reviewed By: rnk llvm-svn: 268942
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Zachary Turner
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May 9, 2016
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| //===- ModStream.h - PDB Module Info Stream Access ------------------------===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is distributed under the University of Illinois Open Source | ||
| // License. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #ifndef LLVM_DEBUGINFO_PDB_RAW_MODSTREAM_H | ||
| #define LLVM_DEBUGINFO_PDB_RAW_MODSTREAM_H | ||
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| #include "llvm/ADT/iterator_range.h" | ||
| #include "llvm/DebugInfo/CodeView/SymbolRecord.h" | ||
| #include "llvm/DebugInfo/PDB/Raw/ByteStream.h" | ||
| #include "llvm/DebugInfo/PDB/Raw/MappedBlockStream.h" | ||
| #include "llvm/Support/Error.h" | ||
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| namespace llvm { | ||
| namespace pdb { | ||
| class PDBFile; | ||
| class ModInfo; | ||
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| class ModStream { | ||
| public: | ||
| ModStream(PDBFile &File, const ModInfo &Module); | ||
| ~ModStream(); | ||
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| Error reload(); | ||
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| iterator_range<codeview::SymbolIterator> symbols() const; | ||
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| private: | ||
| const ModInfo &Mod; | ||
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| MappedBlockStream Stream; | ||
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| ByteStream SymbolsSubstream; | ||
| ByteStream LinesSubstream; | ||
| ByteStream C13LinesSubstream; | ||
| ByteStream GlobalRefsSubstream; | ||
| }; | ||
| } | ||
| } | ||
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| //===- ModStream.cpp - PDB Module Info Stream Access ----------------------===// | ||
| // | ||
| // The LLVM Compiler Infrastructure | ||
| // | ||
| // This file is distributed under the University of Illinois Open Source | ||
| // License. See LICENSE.TXT for details. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| #include "llvm/DebugInfo/PDB/Raw/ModStream.h" | ||
| #include "llvm/DebugInfo/PDB/Raw/ModInfo.h" | ||
| #include "llvm/DebugInfo/PDB/Raw/RawError.h" | ||
| #include "llvm/DebugInfo/PDB/Raw/StreamReader.h" | ||
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| using namespace llvm; | ||
| using namespace llvm::pdb; | ||
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| ModStream::ModStream(PDBFile &File, const ModInfo &Module) | ||
| : Mod(Module), Stream(Module.getModuleStreamIndex(), File) {} | ||
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| ModStream::~ModStream() {} | ||
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| Error ModStream::reload() { | ||
| StreamReader Reader(Stream); | ||
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| uint32_t SymbolSize = Mod.getSymbolDebugInfoByteSize(); | ||
| uint32_t C11Size = Mod.getLineInfoByteSize(); | ||
| uint32_t C13Size = Mod.getC13LineInfoByteSize(); | ||
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| if (C11Size > 0 && C13Size > 0) | ||
| return llvm::make_error<RawError>(raw_error_code::corrupt_file, | ||
| "Module has both C11 and C13 line info"); | ||
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| if (auto EC = SymbolsSubstream.initialize(Reader, SymbolSize)) | ||
| return EC; | ||
| if (auto EC = LinesSubstream.initialize(Reader, C11Size)) | ||
| return EC; | ||
| if (auto EC = C13LinesSubstream.initialize(Reader, C13Size)) | ||
| return EC; | ||
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| uint32_t GlobalRefsSize; | ||
| if (auto EC = Reader.readInteger(GlobalRefsSize)) | ||
| return EC; | ||
| if (auto EC = GlobalRefsSubstream.initialize(Reader, GlobalRefsSize)) | ||
| return EC; | ||
| if (Reader.bytesRemaining() > 0) | ||
| return llvm::make_error<RawError>(raw_error_code::corrupt_file, | ||
| "Unexpected bytes in module stream."); | ||
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| return Error::success(); | ||
| } | ||
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| iterator_range<codeview::SymbolIterator> ModStream::symbols() const { | ||
| return codeview::makeSymbolRange(SymbolsSubstream.data().slice(4)); | ||
| } |
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