mirror of
https://github.com/intel/llvm.git
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548 lines
15 KiB
C++
548 lines
15 KiB
C++
//===-- PdbUtil.cpp ---------------------------------------------*- 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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#include "PdbUtil.h"
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#include "PdbSymUid.h"
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#include "llvm/DebugInfo/CodeView/SymbolDeserializer.h"
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#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
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#include "llvm/DebugInfo/PDB/Native/TpiStream.h"
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#include "lldb/Utility/LLDBAssert.h"
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#include "lldb/lldb-enumerations.h"
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using namespace lldb_private;
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using namespace lldb_private::npdb;
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using namespace llvm::codeview;
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using namespace llvm::pdb;
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CVTagRecord CVTagRecord::create(CVType type) {
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assert(IsTagRecord(type) && "type is not a tag record!");
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switch (type.kind()) {
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case LF_CLASS:
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case LF_STRUCTURE:
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case LF_INTERFACE: {
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ClassRecord cr;
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llvm::cantFail(TypeDeserializer::deserializeAs<ClassRecord>(type, cr));
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return CVTagRecord(std::move(cr));
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}
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case LF_UNION: {
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UnionRecord ur;
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llvm::cantFail(TypeDeserializer::deserializeAs<UnionRecord>(type, ur));
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return CVTagRecord(std::move(ur));
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}
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case LF_ENUM: {
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EnumRecord er;
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llvm::cantFail(TypeDeserializer::deserializeAs<EnumRecord>(type, er));
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return CVTagRecord(std::move(er));
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}
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default:
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llvm_unreachable("Unreachable!");
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}
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}
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CVTagRecord::CVTagRecord(ClassRecord &&c)
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: cvclass(std::move(c)),
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m_kind(cvclass.Kind == TypeRecordKind::Struct ? Struct : Class) {}
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CVTagRecord::CVTagRecord(UnionRecord &&u)
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: cvunion(std::move(u)), m_kind(Union) {}
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CVTagRecord::CVTagRecord(EnumRecord &&e) : cvenum(std::move(e)), m_kind(Enum) {}
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PDB_SymType lldb_private::npdb::CVSymToPDBSym(SymbolKind kind) {
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switch (kind) {
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case S_COMPILE3:
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case S_OBJNAME:
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return PDB_SymType::CompilandDetails;
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case S_ENVBLOCK:
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return PDB_SymType::CompilandEnv;
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case S_THUNK32:
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case S_TRAMPOLINE:
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return PDB_SymType::Thunk;
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case S_COFFGROUP:
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return PDB_SymType::CoffGroup;
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case S_EXPORT:
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return PDB_SymType::Export;
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case S_LPROC32:
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case S_GPROC32:
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case S_LPROC32_DPC:
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return PDB_SymType::Function;
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case S_PUB32:
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return PDB_SymType::PublicSymbol;
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case S_INLINESITE:
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return PDB_SymType::InlineSite;
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case S_LOCAL:
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case S_BPREL32:
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case S_REGREL32:
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case S_MANCONSTANT:
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case S_CONSTANT:
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case S_LDATA32:
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case S_GDATA32:
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case S_LMANDATA:
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case S_GMANDATA:
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case S_LTHREAD32:
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case S_GTHREAD32:
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return PDB_SymType::Data;
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case S_BLOCK32:
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return PDB_SymType::Block;
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case S_LABEL32:
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return PDB_SymType::Label;
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case S_CALLSITEINFO:
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return PDB_SymType::CallSite;
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case S_HEAPALLOCSITE:
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return PDB_SymType::HeapAllocationSite;
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case S_CALLEES:
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return PDB_SymType::Callee;
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case S_CALLERS:
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return PDB_SymType::Caller;
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default:
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lldbassert(false && "Invalid symbol record kind!");
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}
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return PDB_SymType::None;
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}
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PDB_SymType lldb_private::npdb::CVTypeToPDBType(TypeLeafKind kind) {
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switch (kind) {
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case LF_ARRAY:
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return PDB_SymType::ArrayType;
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case LF_ARGLIST:
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return PDB_SymType::FunctionSig;
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case LF_BCLASS:
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return PDB_SymType::BaseClass;
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case LF_BINTERFACE:
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return PDB_SymType::BaseInterface;
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case LF_CLASS:
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case LF_STRUCTURE:
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case LF_INTERFACE:
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case LF_UNION:
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return PDB_SymType::UDT;
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case LF_POINTER:
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return PDB_SymType::PointerType;
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case LF_ENUM:
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return PDB_SymType::Enum;
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case LF_PROCEDURE:
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return PDB_SymType::FunctionSig;
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case LF_BITFIELD:
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return PDB_SymType::BuiltinType;
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default:
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lldbassert(false && "Invalid type record kind!");
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}
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return PDB_SymType::None;
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}
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bool lldb_private::npdb::SymbolHasAddress(const CVSymbol &sym) {
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switch (sym.kind()) {
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case S_GPROC32:
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case S_LPROC32:
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case S_GPROC32_ID:
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case S_LPROC32_ID:
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case S_LPROC32_DPC:
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case S_LPROC32_DPC_ID:
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case S_THUNK32:
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case S_TRAMPOLINE:
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case S_COFFGROUP:
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case S_BLOCK32:
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case S_LABEL32:
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case S_CALLSITEINFO:
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case S_HEAPALLOCSITE:
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case S_LDATA32:
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case S_GDATA32:
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case S_LMANDATA:
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case S_GMANDATA:
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case S_LTHREAD32:
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case S_GTHREAD32:
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return true;
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default:
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return false;
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}
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}
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bool lldb_private::npdb::SymbolIsCode(const CVSymbol &sym) {
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switch (sym.kind()) {
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case S_GPROC32:
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case S_LPROC32:
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case S_GPROC32_ID:
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case S_LPROC32_ID:
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case S_LPROC32_DPC:
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case S_LPROC32_DPC_ID:
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case S_THUNK32:
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case S_TRAMPOLINE:
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case S_COFFGROUP:
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case S_BLOCK32:
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return true;
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default:
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return false;
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}
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}
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template <typename RecordT> RecordT createRecord(const CVSymbol &sym) {
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RecordT record(static_cast<SymbolRecordKind>(sym.kind()));
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cantFail(SymbolDeserializer::deserializeAs<RecordT>(sym, record));
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return record;
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}
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template <typename RecordT>
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static SegmentOffset GetSegmentAndOffset(const CVSymbol &sym) {
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RecordT record = createRecord<RecordT>(sym);
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return {record.Segment, record.CodeOffset};
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}
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template <>
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SegmentOffset GetSegmentAndOffset<TrampolineSym>(const CVSymbol &sym) {
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TrampolineSym record = createRecord<TrampolineSym>(sym);
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return {record.ThunkSection, record.ThunkOffset};
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}
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template <> SegmentOffset GetSegmentAndOffset<Thunk32Sym>(const CVSymbol &sym) {
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Thunk32Sym record = createRecord<Thunk32Sym>(sym);
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return {record.Segment, record.Offset};
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}
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template <>
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SegmentOffset GetSegmentAndOffset<CoffGroupSym>(const CVSymbol &sym) {
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CoffGroupSym record = createRecord<CoffGroupSym>(sym);
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return {record.Segment, record.Offset};
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}
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template <> SegmentOffset GetSegmentAndOffset<DataSym>(const CVSymbol &sym) {
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DataSym record = createRecord<DataSym>(sym);
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return {record.Segment, record.DataOffset};
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}
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template <>
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SegmentOffset GetSegmentAndOffset<ThreadLocalDataSym>(const CVSymbol &sym) {
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ThreadLocalDataSym record = createRecord<ThreadLocalDataSym>(sym);
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return {record.Segment, record.DataOffset};
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}
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SegmentOffset lldb_private::npdb::GetSegmentAndOffset(const CVSymbol &sym) {
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switch (sym.kind()) {
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case S_GPROC32:
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case S_LPROC32:
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case S_GPROC32_ID:
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case S_LPROC32_ID:
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case S_LPROC32_DPC:
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case S_LPROC32_DPC_ID:
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return ::GetSegmentAndOffset<ProcSym>(sym);
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case S_THUNK32:
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return ::GetSegmentAndOffset<Thunk32Sym>(sym);
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break;
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case S_TRAMPOLINE:
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return ::GetSegmentAndOffset<TrampolineSym>(sym);
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break;
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case S_COFFGROUP:
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return ::GetSegmentAndOffset<CoffGroupSym>(sym);
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break;
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case S_BLOCK32:
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return ::GetSegmentAndOffset<BlockSym>(sym);
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break;
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case S_LABEL32:
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return ::GetSegmentAndOffset<LabelSym>(sym);
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break;
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case S_CALLSITEINFO:
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return ::GetSegmentAndOffset<CallSiteInfoSym>(sym);
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break;
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case S_HEAPALLOCSITE:
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return ::GetSegmentAndOffset<HeapAllocationSiteSym>(sym);
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break;
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case S_LDATA32:
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case S_GDATA32:
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case S_LMANDATA:
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case S_GMANDATA:
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return ::GetSegmentAndOffset<DataSym>(sym);
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break;
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case S_LTHREAD32:
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case S_GTHREAD32:
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return ::GetSegmentAndOffset<ThreadLocalDataSym>(sym);
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break;
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default:
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lldbassert(false && "Record does not have a segment/offset!");
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}
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return {0, 0};
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}
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template <typename RecordT>
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SegmentOffsetLength GetSegmentOffsetAndLength(const CVSymbol &sym) {
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RecordT record = createRecord<RecordT>(sym);
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return {record.Segment, record.CodeOffset, record.CodeSize};
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}
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template <>
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SegmentOffsetLength
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GetSegmentOffsetAndLength<TrampolineSym>(const CVSymbol &sym) {
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TrampolineSym record = createRecord<TrampolineSym>(sym);
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return {record.ThunkSection, record.ThunkOffset, record.Size};
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}
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template <>
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SegmentOffsetLength GetSegmentOffsetAndLength<Thunk32Sym>(const CVSymbol &sym) {
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Thunk32Sym record = createRecord<Thunk32Sym>(sym);
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return SegmentOffsetLength{record.Segment, record.Offset, record.Length};
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}
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template <>
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SegmentOffsetLength
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GetSegmentOffsetAndLength<CoffGroupSym>(const CVSymbol &sym) {
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CoffGroupSym record = createRecord<CoffGroupSym>(sym);
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return SegmentOffsetLength{record.Segment, record.Offset, record.Size};
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}
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SegmentOffsetLength
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lldb_private::npdb::GetSegmentOffsetAndLength(const CVSymbol &sym) {
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switch (sym.kind()) {
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case S_GPROC32:
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case S_LPROC32:
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case S_GPROC32_ID:
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case S_LPROC32_ID:
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case S_LPROC32_DPC:
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case S_LPROC32_DPC_ID:
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return ::GetSegmentOffsetAndLength<ProcSym>(sym);
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case S_THUNK32:
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return ::GetSegmentOffsetAndLength<Thunk32Sym>(sym);
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break;
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case S_TRAMPOLINE:
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return ::GetSegmentOffsetAndLength<TrampolineSym>(sym);
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break;
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case S_COFFGROUP:
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return ::GetSegmentOffsetAndLength<CoffGroupSym>(sym);
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break;
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case S_BLOCK32:
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return ::GetSegmentOffsetAndLength<BlockSym>(sym);
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break;
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default:
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lldbassert(false && "Record does not have a segment/offset/length triple!");
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}
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return {0, 0, 0};
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}
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bool lldb_private::npdb::IsForwardRefUdt(CVType cvt) {
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ClassRecord cr;
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UnionRecord ur;
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EnumRecord er;
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switch (cvt.kind()) {
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case LF_CLASS:
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case LF_STRUCTURE:
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case LF_INTERFACE:
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llvm::cantFail(TypeDeserializer::deserializeAs<ClassRecord>(cvt, cr));
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return cr.isForwardRef();
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case LF_UNION:
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llvm::cantFail(TypeDeserializer::deserializeAs<UnionRecord>(cvt, ur));
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return ur.isForwardRef();
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case LF_ENUM:
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llvm::cantFail(TypeDeserializer::deserializeAs<EnumRecord>(cvt, er));
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return er.isForwardRef();
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default:
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return false;
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}
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}
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bool lldb_private::npdb::IsTagRecord(llvm::codeview::CVType cvt) {
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switch (cvt.kind()) {
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case LF_CLASS:
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case LF_STRUCTURE:
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case LF_UNION:
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case LF_ENUM:
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return true;
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default:
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return false;
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}
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}
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bool lldb_private::npdb::IsForwardRefUdt(const PdbTypeSymId &id,
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TpiStream &tpi) {
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if (id.is_ipi || id.index.isSimple())
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return false;
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return IsForwardRefUdt(tpi.getType(id.index));
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}
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bool lldb_private::npdb::IsTagRecord(const PdbTypeSymId &id, TpiStream &tpi) {
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if (id.is_ipi || id.index.isSimple())
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return false;
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return IsTagRecord(tpi.getType(id.index));
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}
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lldb::AccessType
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lldb_private::npdb::TranslateMemberAccess(MemberAccess access) {
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switch (access) {
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case MemberAccess::Private:
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return lldb::eAccessPrivate;
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case MemberAccess::Protected:
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return lldb::eAccessProtected;
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case MemberAccess::Public:
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return lldb::eAccessPublic;
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case MemberAccess::None:
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return lldb::eAccessNone;
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}
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llvm_unreachable("unreachable");
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}
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TypeIndex lldb_private::npdb::GetFieldListIndex(CVType cvt) {
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switch (cvt.kind()) {
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case LF_CLASS:
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case LF_STRUCTURE:
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case LF_INTERFACE: {
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ClassRecord cr;
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cantFail(TypeDeserializer::deserializeAs<ClassRecord>(cvt, cr));
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return cr.FieldList;
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}
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case LF_UNION: {
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UnionRecord ur;
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cantFail(TypeDeserializer::deserializeAs<UnionRecord>(cvt, ur));
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return ur.FieldList;
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}
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case LF_ENUM: {
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EnumRecord er;
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cantFail(TypeDeserializer::deserializeAs<EnumRecord>(cvt, er));
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return er.FieldList;
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}
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default:
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llvm_unreachable("Unreachable!");
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}
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}
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TypeIndex lldb_private::npdb::LookThroughModifierRecord(CVType modifier) {
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lldbassert(modifier.kind() == LF_MODIFIER);
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ModifierRecord mr;
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llvm::cantFail(TypeDeserializer::deserializeAs<ModifierRecord>(modifier, mr));
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return mr.ModifiedType;
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}
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llvm::StringRef lldb_private::npdb::DropNameScope(llvm::StringRef name) {
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// Not all PDB names can be parsed with CPlusPlusNameParser.
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// E.g. it fails on names containing `anonymous namespace'.
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// So we simply drop everything before '::'
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auto offset = name.rfind("::");
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if (offset == llvm::StringRef::npos)
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return name;
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assert(offset + 2 <= name.size());
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return name.substr(offset + 2);
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}
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lldb::BasicType
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lldb_private::npdb::GetCompilerTypeForSimpleKind(SimpleTypeKind kind) {
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switch (kind) {
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case SimpleTypeKind::Boolean128:
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case SimpleTypeKind::Boolean16:
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case SimpleTypeKind::Boolean32:
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case SimpleTypeKind::Boolean64:
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case SimpleTypeKind::Boolean8:
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return lldb::eBasicTypeBool;
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case SimpleTypeKind::Byte:
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case SimpleTypeKind::UnsignedCharacter:
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return lldb::eBasicTypeUnsignedChar;
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case SimpleTypeKind::NarrowCharacter:
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return lldb::eBasicTypeChar;
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case SimpleTypeKind::SignedCharacter:
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case SimpleTypeKind::SByte:
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return lldb::eBasicTypeSignedChar;
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case SimpleTypeKind::Character16:
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return lldb::eBasicTypeChar16;
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case SimpleTypeKind::Character32:
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return lldb::eBasicTypeChar32;
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case SimpleTypeKind::Complex80:
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return lldb::eBasicTypeLongDoubleComplex;
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case SimpleTypeKind::Complex64:
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return lldb::eBasicTypeDoubleComplex;
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case SimpleTypeKind::Complex32:
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return lldb::eBasicTypeFloatComplex;
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case SimpleTypeKind::Float128:
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case SimpleTypeKind::Float80:
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return lldb::eBasicTypeLongDouble;
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case SimpleTypeKind::Float64:
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return lldb::eBasicTypeDouble;
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case SimpleTypeKind::Float32:
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return lldb::eBasicTypeFloat;
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case SimpleTypeKind::Float16:
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return lldb::eBasicTypeHalf;
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case SimpleTypeKind::Int128:
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return lldb::eBasicTypeInt128;
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case SimpleTypeKind::Int64:
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case SimpleTypeKind::Int64Quad:
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return lldb::eBasicTypeLongLong;
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case SimpleTypeKind::Int32:
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return lldb::eBasicTypeInt;
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case SimpleTypeKind::Int16:
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case SimpleTypeKind::Int16Short:
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return lldb::eBasicTypeShort;
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case SimpleTypeKind::UInt128:
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return lldb::eBasicTypeUnsignedInt128;
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case SimpleTypeKind::UInt64:
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case SimpleTypeKind::UInt64Quad:
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return lldb::eBasicTypeUnsignedLongLong;
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case SimpleTypeKind::HResult:
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case SimpleTypeKind::UInt32:
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return lldb::eBasicTypeUnsignedInt;
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case SimpleTypeKind::UInt16:
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case SimpleTypeKind::UInt16Short:
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return lldb::eBasicTypeUnsignedShort;
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case SimpleTypeKind::Int32Long:
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return lldb::eBasicTypeLong;
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case SimpleTypeKind::UInt32Long:
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return lldb::eBasicTypeUnsignedLong;
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case SimpleTypeKind::Void:
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return lldb::eBasicTypeVoid;
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case SimpleTypeKind::WideCharacter:
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return lldb::eBasicTypeWChar;
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default:
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return lldb::eBasicTypeInvalid;
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}
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}
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size_t lldb_private::npdb::GetTypeSizeForSimpleKind(SimpleTypeKind kind) {
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switch (kind) {
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case SimpleTypeKind::Boolean128:
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case SimpleTypeKind::Int128:
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case SimpleTypeKind::UInt128:
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case SimpleTypeKind::Float128:
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return 16;
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case SimpleTypeKind::Complex80:
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case SimpleTypeKind::Float80:
|
|
return 10;
|
|
case SimpleTypeKind::Boolean64:
|
|
case SimpleTypeKind::Complex64:
|
|
case SimpleTypeKind::UInt64:
|
|
case SimpleTypeKind::UInt64Quad:
|
|
case SimpleTypeKind::Float64:
|
|
case SimpleTypeKind::Int64:
|
|
case SimpleTypeKind::Int64Quad:
|
|
return 8;
|
|
case SimpleTypeKind::Boolean32:
|
|
case SimpleTypeKind::Character32:
|
|
case SimpleTypeKind::Complex32:
|
|
case SimpleTypeKind::Float32:
|
|
case SimpleTypeKind::Int32:
|
|
case SimpleTypeKind::Int32Long:
|
|
case SimpleTypeKind::UInt32Long:
|
|
case SimpleTypeKind::HResult:
|
|
case SimpleTypeKind::UInt32:
|
|
return 4;
|
|
case SimpleTypeKind::Boolean16:
|
|
case SimpleTypeKind::Character16:
|
|
case SimpleTypeKind::Float16:
|
|
case SimpleTypeKind::Int16:
|
|
case SimpleTypeKind::Int16Short:
|
|
case SimpleTypeKind::UInt16:
|
|
case SimpleTypeKind::UInt16Short:
|
|
case SimpleTypeKind::WideCharacter:
|
|
return 2;
|
|
case SimpleTypeKind::Boolean8:
|
|
case SimpleTypeKind::Byte:
|
|
case SimpleTypeKind::UnsignedCharacter:
|
|
case SimpleTypeKind::NarrowCharacter:
|
|
case SimpleTypeKind::SignedCharacter:
|
|
case SimpleTypeKind::SByte:
|
|
return 1;
|
|
case SimpleTypeKind::Void:
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|