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//===-- PdbUtil.h -----------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLDB_PLUGINS_SYMBOLFILENATIVEPDB_PDBUTIL_H
#define LLDB_PLUGINS_SYMBOLFILENATIVEPDB_PDBUTIL_H
#include "lldb/Expression/DWARFExpression.h"
#include "lldb/Symbol/Variable.h"
#include "lldb/lldb-enumerations.h"
#include "llvm/ADT/Optional.h"
#include "llvm/DebugInfo/CodeView/CodeView.h"
#include "llvm/DebugInfo/CodeView/SymbolRecord.h"
#include "llvm/DebugInfo/CodeView/TypeRecord.h"
#include "llvm/DebugInfo/PDB/PDBTypes.h"
#include "PdbSymUid.h"
#include <tuple>
#include <utility>
namespace llvm {
namespace pdb {
class TpiStream;
}
} // namespace llvm
namespace lldb_private {
namespace npdb {
class PdbIndex;
struct CVTagRecord {
enum Kind { Class, Struct, Union, Enum };
static CVTagRecord create(llvm::codeview::CVType type);
Kind kind() const { return m_kind; }
const llvm::codeview::TagRecord &asTag() const {
if (m_kind == Struct || m_kind == Class)
return cvclass;
if (m_kind == Enum)
return cvenum;
return cvunion;
}
const llvm::codeview::ClassRecord &asClass() const {
assert(m_kind == Struct || m_kind == Class);
return cvclass;
}
const llvm::codeview::EnumRecord &asEnum() const {
assert(m_kind == Enum);
return cvenum;
}
const llvm::codeview::UnionRecord &asUnion() const {
assert(m_kind == Union);
return cvunion;
}
llvm::StringRef name() const {
if (m_kind == Struct || m_kind == Union)
return cvclass.Name;
if (m_kind == Enum)
return cvenum.Name;
return cvunion.Name;
}
private:
CVTagRecord(llvm::codeview::ClassRecord &&c);
CVTagRecord(llvm::codeview::UnionRecord &&u);
CVTagRecord(llvm::codeview::EnumRecord &&e);
union {
llvm::codeview::ClassRecord cvclass;
llvm::codeview::EnumRecord cvenum;
llvm::codeview::UnionRecord cvunion;
};
Kind m_kind;
};
struct SegmentOffset {
SegmentOffset() = default;
SegmentOffset(uint16_t s, uint32_t o) : segment(s), offset(o) {}
uint16_t segment = 0;
uint32_t offset = 0;
};
struct SegmentOffsetLength {
SegmentOffsetLength() = default;
SegmentOffsetLength(uint16_t s, uint32_t o, uint32_t l)
: so(s, o), length(l) {}
SegmentOffset so;
uint32_t length = 0;
};
struct VariableInfo {
llvm::StringRef name;
llvm::codeview::TypeIndex type;
llvm::Optional<DWARFExpression> location;
llvm::Optional<Variable::RangeList> ranges;
};
llvm::pdb::PDB_SymType CVSymToPDBSym(llvm::codeview::SymbolKind kind);
llvm::pdb::PDB_SymType CVTypeToPDBType(llvm::codeview::TypeLeafKind kind);
bool SymbolHasAddress(const llvm::codeview::CVSymbol &sym);
bool SymbolIsCode(const llvm::codeview::CVSymbol &sym);
SegmentOffset GetSegmentAndOffset(const llvm::codeview::CVSymbol &sym);
SegmentOffsetLength
GetSegmentOffsetAndLength(const llvm::codeview::CVSymbol &sym);
template <typename RecordT> bool IsValidRecord(const RecordT &sym) {
return true;
}
inline bool IsValidRecord(const llvm::codeview::ProcRefSym &sym) {
// S_PROCREF symbols have 1-based module indices.
return sym.Module > 0;
}
bool IsForwardRefUdt(llvm::codeview::CVType cvt);
bool IsTagRecord(llvm::codeview::CVType cvt);
bool IsClassStructUnion(llvm::codeview::CVType cvt);
bool IsForwardRefUdt(const PdbTypeSymId &id, llvm::pdb::TpiStream &tpi);
bool IsTagRecord(const PdbTypeSymId &id, llvm::pdb::TpiStream &tpi);
lldb::AccessType TranslateMemberAccess(llvm::codeview::MemberAccess access);
llvm::codeview::TypeIndex GetFieldListIndex(llvm::codeview::CVType cvt);
llvm::codeview::TypeIndex
LookThroughModifierRecord(llvm::codeview::CVType modifier);
llvm::StringRef DropNameScope(llvm::StringRef name);
VariableInfo GetVariableNameInfo(llvm::codeview::CVSymbol symbol);
VariableInfo GetVariableLocationInfo(PdbIndex &index, PdbCompilandSymId var_id,
lldb::ModuleSP module);
size_t GetTypeSizeForSimpleKind(llvm::codeview::SimpleTypeKind kind);
lldb::BasicType
GetCompilerTypeForSimpleKind(llvm::codeview::SimpleTypeKind kind);
PdbTypeSymId GetBestPossibleDecl(PdbTypeSymId id, llvm::pdb::TpiStream &tpi);
size_t GetSizeOfType(PdbTypeSymId id, llvm::pdb::TpiStream &tpi);
} // namespace npdb
} // namespace lldb_private
#endif
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