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4b665d2445
Previously extractors tried to be stateless with any additional context information needed in order to parse items being passed in via the extraction method. This led to quite cumbersome implementation challenges and awkwardness of use. This patch brings back support for stateful extractors, making the implementation and usage simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305093 91177308-0d34-0410-b5e6-96231b3b80d8
112 lines
3.4 KiB
C++
112 lines
3.4 KiB
C++
//===- DebugInlineeLinesSubsection.h ----------------------------*- C++ -*-===//
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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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#ifndef LLVM_DEBUGINFO_CODEVIEW_BUGINLINEELINESSUBSECTION_H
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#define LLVM_DEBUGINFO_CODEVIEW_BUGINLINEELINESSUBSECTION_H
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#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
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#include "llvm/DebugInfo/CodeView/Line.h"
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#include "llvm/Support/BinaryStreamArray.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/Error.h"
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namespace llvm {
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namespace codeview {
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class DebugInlineeLinesSubsectionsRef;
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class DebugChecksumsSubsection;
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enum class InlineeLinesSignature : uint32_t {
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Normal, // CV_INLINEE_SOURCE_LINE_SIGNATURE
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ExtraFiles // CV_INLINEE_SOURCE_LINE_SIGNATURE_EX
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};
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struct InlineeSourceLineHeader {
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TypeIndex Inlinee; // ID of the function that was inlined.
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support::ulittle32_t FileID; // Offset into FileChecksums subsection.
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support::ulittle32_t SourceLineNum; // First line of inlined code.
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// If extra files present:
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// ulittle32_t ExtraFileCount;
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// ulittle32_t Files[];
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};
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struct InlineeSourceLine {
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const InlineeSourceLineHeader *Header;
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FixedStreamArray<support::ulittle32_t> ExtraFiles;
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};
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}
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template <> struct VarStreamArrayExtractor<codeview::InlineeSourceLine> {
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Error operator()(BinaryStreamRef Stream, uint32_t &Len,
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codeview::InlineeSourceLine &Item);
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bool HasExtraFiles = false;
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};
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namespace codeview {
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class DebugInlineeLinesSubsectionRef final : public DebugSubsectionRef {
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typedef VarStreamArray<InlineeSourceLine> LinesArray;
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typedef LinesArray::Iterator Iterator;
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public:
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DebugInlineeLinesSubsectionRef();
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static bool classof(const DebugSubsectionRef *S) {
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return S->kind() == DebugSubsectionKind::InlineeLines;
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}
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Error initialize(BinaryStreamReader Reader);
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bool hasExtraFiles() const;
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Iterator begin() const { return Lines.begin(); }
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Iterator end() const { return Lines.end(); }
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private:
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InlineeLinesSignature Signature;
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VarStreamArray<InlineeSourceLine> Lines;
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};
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class DebugInlineeLinesSubsection final : public DebugSubsection {
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public:
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struct Entry {
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std::vector<support::ulittle32_t> ExtraFiles;
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InlineeSourceLineHeader Header;
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};
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DebugInlineeLinesSubsection(DebugChecksumsSubsection &Checksums,
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bool HasExtraFiles = false);
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static bool classof(const DebugSubsection *S) {
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return S->kind() == DebugSubsectionKind::InlineeLines;
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}
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Error commit(BinaryStreamWriter &Writer) const override;
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uint32_t calculateSerializedSize() const override;
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void addInlineSite(TypeIndex FuncId, StringRef FileName, uint32_t SourceLine);
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void addExtraFile(StringRef FileName);
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bool hasExtraFiles() const { return HasExtraFiles; }
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void setHasExtraFiles(bool Has) { HasExtraFiles = Has; }
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std::vector<Entry>::const_iterator begin() const { return Entries.begin(); }
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std::vector<Entry>::const_iterator end() const { return Entries.end(); }
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private:
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DebugChecksumsSubsection &Checksums;
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bool HasExtraFiles = false;
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uint32_t ExtraFileCount = 0;
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std::vector<Entry> Entries;
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};
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}
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}
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#endif
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