594c85e95f
Previously the code that parsed debug info to create lldb's Symbol objects such as Variable, Type, Function, etc was tightly coupled to the AST reconstruction code. This made it difficult / impossible to implement functions such as ParseDeclsForContext() that were only supposed to be operating on clang AST's. By splitting these apart, the logic becomes much cleaner and we have a clear separation of responsibilities. llvm-svn: 349383
152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
//===-- PdbUtil.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 LLDB_PLUGINS_SYMBOLFILENATIVEPDB_PDBUTIL_H
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#define LLDB_PLUGINS_SYMBOLFILENATIVEPDB_PDBUTIL_H
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#include "lldb/Expression/DWARFExpression.h"
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#include "lldb/Symbol/Variable.h"
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#include "lldb/lldb-enumerations.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/DebugInfo/CodeView/CodeView.h"
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#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
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#include "llvm/DebugInfo/CodeView/TypeRecord.h"
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#include "llvm/DebugInfo/PDB/PDBTypes.h"
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#include "PdbSymUid.h"
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#include <tuple>
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#include <utility>
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namespace llvm {
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namespace pdb {
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class TpiStream;
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}
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} // namespace llvm
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namespace lldb_private {
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namespace npdb {
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class PdbIndex;
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struct CVTagRecord {
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enum Kind { Class, Struct, Union, Enum };
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static CVTagRecord create(llvm::codeview::CVType type);
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Kind kind() const { return m_kind; }
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const llvm::codeview::TagRecord &asTag() const {
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if (m_kind == Struct || m_kind == Class)
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return cvclass;
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if (m_kind == Enum)
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return cvenum;
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return cvunion;
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}
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const llvm::codeview::ClassRecord &asClass() const {
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assert(m_kind == Struct || m_kind == Class);
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return cvclass;
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}
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const llvm::codeview::EnumRecord &asEnum() const {
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assert(m_kind == Enum);
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return cvenum;
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}
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const llvm::codeview::UnionRecord &asUnion() const {
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assert(m_kind == Union);
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return cvunion;
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}
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private:
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CVTagRecord(llvm::codeview::ClassRecord &&c);
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CVTagRecord(llvm::codeview::UnionRecord &&u);
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CVTagRecord(llvm::codeview::EnumRecord &&e);
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union {
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llvm::codeview::ClassRecord cvclass;
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llvm::codeview::EnumRecord cvenum;
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llvm::codeview::UnionRecord cvunion;
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};
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Kind m_kind;
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};
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struct SegmentOffset {
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SegmentOffset() = default;
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SegmentOffset(uint16_t s, uint32_t o) : segment(s), offset(o) {}
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uint16_t segment = 0;
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uint32_t offset = 0;
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};
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struct SegmentOffsetLength {
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SegmentOffsetLength() = default;
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SegmentOffsetLength(uint16_t s, uint32_t o, uint32_t l)
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: so(s, o), length(l) {}
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SegmentOffset so;
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uint32_t length = 0;
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};
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struct VariableInfo {
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llvm::StringRef name;
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llvm::codeview::TypeIndex type;
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llvm::Optional<DWARFExpression> location;
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llvm::Optional<Variable::RangeList> ranges;
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};
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llvm::pdb::PDB_SymType CVSymToPDBSym(llvm::codeview::SymbolKind kind);
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llvm::pdb::PDB_SymType CVTypeToPDBType(llvm::codeview::TypeLeafKind kind);
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bool SymbolHasAddress(const llvm::codeview::CVSymbol &sym);
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bool SymbolIsCode(const llvm::codeview::CVSymbol &sym);
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SegmentOffset GetSegmentAndOffset(const llvm::codeview::CVSymbol &sym);
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SegmentOffsetLength
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GetSegmentOffsetAndLength(const llvm::codeview::CVSymbol &sym);
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template <typename RecordT> bool IsValidRecord(const RecordT &sym) {
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return true;
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}
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inline bool IsValidRecord(const llvm::codeview::ProcRefSym &sym) {
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// S_PROCREF symbols have 1-based module indices.
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return sym.Module > 0;
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}
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bool IsForwardRefUdt(llvm::codeview::CVType cvt);
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bool IsTagRecord(llvm::codeview::CVType cvt);
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bool IsClassStructUnion(llvm::codeview::CVType cvt);
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bool IsForwardRefUdt(const PdbTypeSymId &id, llvm::pdb::TpiStream &tpi);
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bool IsTagRecord(const PdbTypeSymId &id, llvm::pdb::TpiStream &tpi);
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lldb::AccessType TranslateMemberAccess(llvm::codeview::MemberAccess access);
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llvm::codeview::TypeIndex GetFieldListIndex(llvm::codeview::CVType cvt);
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llvm::codeview::TypeIndex
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LookThroughModifierRecord(llvm::codeview::CVType modifier);
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llvm::StringRef DropNameScope(llvm::StringRef name);
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VariableInfo GetVariableNameInfo(llvm::codeview::CVSymbol symbol);
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VariableInfo GetVariableLocationInfo(PdbIndex &index, PdbCompilandSymId var_id,
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lldb::ModuleSP module);
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size_t GetTypeSizeForSimpleKind(llvm::codeview::SimpleTypeKind kind);
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lldb::BasicType
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GetCompilerTypeForSimpleKind(llvm::codeview::SimpleTypeKind kind);
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PdbTypeSymId GetBestPossibleDecl(PdbTypeSymId id, llvm::pdb::TpiStream &tpi);
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size_t GetSizeOfType(PdbTypeSymId id, llvm::pdb::TpiStream &tpi);
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} // namespace npdb
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} // namespace lldb_private
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#endif
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