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159 lines
4.5 KiB
159 lines
4.5 KiB
//===-- PdbUtil.h -----------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_PDBUTIL_H
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#define LLDB_SOURCE_PLUGINS_SYMBOLFILE_NATIVEPDB_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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llvm::StringRef name() const {
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if (m_kind == Struct || m_kind == Union)
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return cvclass.Name;
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if (m_kind == Enum)
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return cvenum.Name;
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return cvunion.Name;
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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, Block& block,
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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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