diff options
Diffstat (limited to 'gnu/llvm/lib/DebugInfo/CodeView/RecordName.cpp')
| -rw-r--r-- | gnu/llvm/lib/DebugInfo/CodeView/RecordName.cpp | 338 |
1 files changed, 0 insertions, 338 deletions
diff --git a/gnu/llvm/lib/DebugInfo/CodeView/RecordName.cpp b/gnu/llvm/lib/DebugInfo/CodeView/RecordName.cpp deleted file mode 100644 index d868ae237a4..00000000000 --- a/gnu/llvm/lib/DebugInfo/CodeView/RecordName.cpp +++ /dev/null @@ -1,338 +0,0 @@ -//===- RecordName.cpp ----------------------------------------- *- C++ --*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "llvm/DebugInfo/CodeView/RecordName.h" - -#include "llvm/ADT/SmallString.h" -#include "llvm/DebugInfo/CodeView/CVSymbolVisitor.h" -#include "llvm/DebugInfo/CodeView/CVTypeVisitor.h" -#include "llvm/DebugInfo/CodeView/SymbolRecordMapping.h" -#include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h" -#include "llvm/Support/FormatVariadic.h" - -using namespace llvm; -using namespace llvm::codeview; - -namespace { -class TypeNameComputer : public TypeVisitorCallbacks { - /// The type collection. Used to calculate names of nested types. - TypeCollection &Types; - TypeIndex CurrentTypeIndex = TypeIndex::None(); - - /// Name of the current type. Only valid before visitTypeEnd. - SmallString<256> Name; - -public: - explicit TypeNameComputer(TypeCollection &Types) : Types(Types) {} - - StringRef name() const { return Name; } - - /// Paired begin/end actions for all types. Receives all record data, - /// including the fixed-length record prefix. - Error visitTypeBegin(CVType &Record) override; - Error visitTypeBegin(CVType &Record, TypeIndex Index) override; - Error visitTypeEnd(CVType &Record) override; - -#define TYPE_RECORD(EnumName, EnumVal, Name) \ - Error visitKnownRecord(CVType &CVR, Name##Record &Record) override; -#define TYPE_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName) -#define MEMBER_RECORD(EnumName, EnumVal, Name) -#include "llvm/DebugInfo/CodeView/CodeViewTypes.def" -}; -} // namespace - -Error TypeNameComputer::visitTypeBegin(CVType &Record) { - llvm_unreachable("Must call visitTypeBegin with a TypeIndex!"); - return Error::success(); -} - -Error TypeNameComputer::visitTypeBegin(CVType &Record, TypeIndex Index) { - // Reset Name to the empty string. If the visitor sets it, we know it. - Name = ""; - CurrentTypeIndex = Index; - return Error::success(); -} - -Error TypeNameComputer::visitTypeEnd(CVType &CVR) { return Error::success(); } - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - FieldListRecord &FieldList) { - Name = "<field list>"; - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVRecord<TypeLeafKind> &CVR, - StringIdRecord &String) { - Name = String.getString(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, ArgListRecord &Args) { - auto Indices = Args.getIndices(); - uint32_t Size = Indices.size(); - Name = "("; - for (uint32_t I = 0; I < Size; ++I) { - assert(Indices[I] < CurrentTypeIndex); - - Name.append(Types.getTypeName(Indices[I])); - if (I + 1 != Size) - Name.append(", "); - } - Name.push_back(')'); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - StringListRecord &Strings) { - auto Indices = Strings.getIndices(); - uint32_t Size = Indices.size(); - Name = "\""; - for (uint32_t I = 0; I < Size; ++I) { - Name.append(Types.getTypeName(Indices[I])); - if (I + 1 != Size) - Name.append("\" \""); - } - Name.push_back('\"'); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, ClassRecord &Class) { - Name = Class.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, UnionRecord &Union) { - Name = Union.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, EnumRecord &Enum) { - Name = Enum.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, ArrayRecord &AT) { - Name = AT.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, VFTableRecord &VFT) { - Name = VFT.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, MemberFuncIdRecord &Id) { - Name = Id.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, ProcedureRecord &Proc) { - StringRef Ret = Types.getTypeName(Proc.getReturnType()); - StringRef Params = Types.getTypeName(Proc.getArgumentList()); - Name = formatv("{0} {1}", Ret, Params).sstr<256>(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - MemberFunctionRecord &MF) { - StringRef Ret = Types.getTypeName(MF.getReturnType()); - StringRef Class = Types.getTypeName(MF.getClassType()); - StringRef Params = Types.getTypeName(MF.getArgumentList()); - Name = formatv("{0} {1}::{2}", Ret, Class, Params).sstr<256>(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, FuncIdRecord &Func) { - Name = Func.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, TypeServer2Record &TS) { - Name = TS.getName(); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, PointerRecord &Ptr) { - - if (Ptr.isPointerToMember()) { - const MemberPointerInfo &MI = Ptr.getMemberInfo(); - - StringRef Pointee = Types.getTypeName(Ptr.getReferentType()); - StringRef Class = Types.getTypeName(MI.getContainingType()); - Name = formatv("{0} {1}::*", Pointee, Class); - } else { - Name.append(Types.getTypeName(Ptr.getReferentType())); - - if (Ptr.getMode() == PointerMode::LValueReference) - Name.append("&"); - else if (Ptr.getMode() == PointerMode::RValueReference) - Name.append("&&"); - else if (Ptr.getMode() == PointerMode::Pointer) - Name.append("*"); - - // Qualifiers in pointer records apply to the pointer, not the pointee, so - // they go on the right. - if (Ptr.isConst()) - Name.append(" const"); - if (Ptr.isVolatile()) - Name.append(" volatile"); - if (Ptr.isUnaligned()) - Name.append(" __unaligned"); - if (Ptr.isRestrict()) - Name.append(" __restrict"); - } - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, ModifierRecord &Mod) { - uint16_t Mods = static_cast<uint16_t>(Mod.getModifiers()); - - if (Mods & uint16_t(ModifierOptions::Const)) - Name.append("const "); - if (Mods & uint16_t(ModifierOptions::Volatile)) - Name.append("volatile "); - if (Mods & uint16_t(ModifierOptions::Unaligned)) - Name.append("__unaligned "); - Name.append(Types.getTypeName(Mod.getModifiedType())); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - VFTableShapeRecord &Shape) { - Name = formatv("<vftable {0} methods>", Shape.getEntryCount()); - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord( - CVType &CVR, UdtModSourceLineRecord &ModSourceLine) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - UdtSourceLineRecord &SourceLine) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, BitFieldRecord &BF) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - MethodOverloadListRecord &Overloads) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, BuildInfoRecord &BI) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, LabelRecord &R) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - PrecompRecord &Precomp) { - return Error::success(); -} - -Error TypeNameComputer::visitKnownRecord(CVType &CVR, - EndPrecompRecord &EndPrecomp) { - return Error::success(); -} - -std::string llvm::codeview::computeTypeName(TypeCollection &Types, - TypeIndex Index) { - TypeNameComputer Computer(Types); - CVType Record = Types.getType(Index); - if (auto EC = visitTypeRecord(Record, Index, Computer)) { - consumeError(std::move(EC)); - return "<unknown UDT>"; - } - return Computer.name(); -} - -static int getSymbolNameOffset(CVSymbol Sym) { - switch (Sym.kind()) { - // See ProcSym - case SymbolKind::S_GPROC32: - case SymbolKind::S_LPROC32: - case SymbolKind::S_GPROC32_ID: - case SymbolKind::S_LPROC32_ID: - case SymbolKind::S_LPROC32_DPC: - case SymbolKind::S_LPROC32_DPC_ID: - return 35; - // See Thunk32Sym - case SymbolKind::S_THUNK32: - return 21; - // See SectionSym - case SymbolKind::S_SECTION: - return 16; - // See CoffGroupSym - case SymbolKind::S_COFFGROUP: - return 14; - // See PublicSym32, FileStaticSym, RegRelativeSym, DataSym, ThreadLocalDataSym - case SymbolKind::S_PUB32: - case SymbolKind::S_FILESTATIC: - case SymbolKind::S_REGREL32: - case SymbolKind::S_GDATA32: - case SymbolKind::S_LDATA32: - case SymbolKind::S_LMANDATA: - case SymbolKind::S_GMANDATA: - case SymbolKind::S_LTHREAD32: - case SymbolKind::S_GTHREAD32: - case SymbolKind::S_PROCREF: - case SymbolKind::S_LPROCREF: - return 10; - // See RegisterSym and LocalSym - case SymbolKind::S_REGISTER: - case SymbolKind::S_LOCAL: - return 6; - // See BlockSym - case SymbolKind::S_BLOCK32: - return 18; - // See LabelSym - case SymbolKind::S_LABEL32: - return 7; - // See ObjNameSym, ExportSym, and UDTSym - case SymbolKind::S_OBJNAME: - case SymbolKind::S_EXPORT: - case SymbolKind::S_UDT: - return 4; - // See BPRelativeSym - case SymbolKind::S_BPREL32: - return 8; - // See UsingNamespaceSym - case SymbolKind::S_UNAMESPACE: - return 0; - default: - return -1; - } -} - -StringRef llvm::codeview::getSymbolName(CVSymbol Sym) { - if (Sym.kind() == SymbolKind::S_CONSTANT) { - // S_CONSTANT is preceded by an APSInt, which has a variable length. So we - // have to do a full deserialization. - BinaryStreamReader Reader(Sym.content(), llvm::support::little); - // The container doesn't matter for single records. - SymbolRecordMapping Mapping(Reader, CodeViewContainer::ObjectFile); - ConstantSym Const(SymbolKind::S_CONSTANT); - cantFail(Mapping.visitSymbolBegin(Sym)); - cantFail(Mapping.visitKnownRecord(Sym, Const)); - cantFail(Mapping.visitSymbolEnd(Sym)); - return Const.Name; - } - - int Offset = getSymbolNameOffset(Sym); - if (Offset == -1) - return StringRef(); - - StringRef StringData = toStringRef(Sym.content()).drop_front(Offset); - return StringData.split('\0').first; -} |