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40d2ca9f43
There is a lot of duplicate code for printing line info between YAML and the raw output printer. This introduces a base class that can be shared between the two, and makes some minor cleanups in the process. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301728 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
//===- ModuleDebugStream.cpp - PDB Module Info Stream Access --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/DebugInfo/PDB/Native/ModuleDebugStream.h"
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
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#include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
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#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
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#include "llvm/DebugInfo/PDB/Native/RawError.h"
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#include "llvm/DebugInfo/PDB/Native/RawTypes.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/BinaryStreamRef.h"
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#include "llvm/Support/Error.h"
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#include <algorithm>
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#include <cstdint>
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using namespace llvm;
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using namespace llvm::codeview;
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using namespace llvm::msf;
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using namespace llvm::pdb;
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ModuleDebugStream::ModuleDebugStream(const DbiModuleDescriptor &Module,
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std::unique_ptr<MappedBlockStream> Stream)
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: Mod(Module), Stream(std::move(Stream)) {}
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ModuleDebugStream::~ModuleDebugStream() = default;
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Error ModuleDebugStream::reload() {
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BinaryStreamReader Reader(*Stream);
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uint32_t SymbolSize = Mod.getSymbolDebugInfoByteSize();
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uint32_t C11Size = Mod.getC11LineInfoByteSize();
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uint32_t C13Size = Mod.getC13LineInfoByteSize();
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if (C11Size > 0 && C13Size > 0)
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return make_error<RawError>(raw_error_code::corrupt_file,
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"Module has both C11 and C13 line info");
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BinaryStreamRef S;
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if (auto EC = Reader.readInteger(Signature))
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return EC;
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if (auto EC = Reader.readArray(SymbolsSubstream, SymbolSize - 4))
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return EC;
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if (auto EC = Reader.readStreamRef(LinesSubstream, C11Size))
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return EC;
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if (auto EC = Reader.readStreamRef(C13LinesSubstream, C13Size))
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return EC;
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BinaryStreamReader LineReader(C13LinesSubstream);
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if (auto EC =
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LineReader.readArray(LinesAndChecksums, LineReader.bytesRemaining()))
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return EC;
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uint32_t GlobalRefsSize;
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if (auto EC = Reader.readInteger(GlobalRefsSize))
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return EC;
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if (auto EC = Reader.readStreamRef(GlobalRefsSubstream, GlobalRefsSize))
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return EC;
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if (Reader.bytesRemaining() > 0)
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return make_error<RawError>(raw_error_code::corrupt_file,
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"Unexpected bytes in module stream.");
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return Error::success();
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}
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iterator_range<codeview::CVSymbolArray::Iterator>
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ModuleDebugStream::symbols(bool *HadError) const {
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return make_range(SymbolsSubstream.begin(HadError), SymbolsSubstream.end());
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}
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llvm::iterator_range<ModuleDebugStream::LinesAndChecksumsIterator>
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ModuleDebugStream::linesAndChecksums() const {
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return make_range(LinesAndChecksums.begin(), LinesAndChecksums.end());
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}
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bool ModuleDebugStream::hasLineInfo() const {
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return C13LinesSubstream.getLength() > 0;
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}
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Error ModuleDebugStream::commit() { return Error::success(); }
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