| //===- TapiFile.cpp -------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the Text-based Dynamcic Library Stub format. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Object/TapiFile.h" |
| #include "llvm/ADT/StringRef.h" |
| #include "llvm/Object/Error.h" |
| #include "llvm/Support/MemoryBuffer.h" |
| #include "llvm/TextAPI/Symbol.h" |
| |
| using namespace llvm; |
| using namespace MachO; |
| using namespace object; |
| |
| static uint32_t getFlags(const Symbol *Sym) { |
| uint32_t Flags = BasicSymbolRef::SF_Global; |
| if (Sym->isUndefined()) |
| Flags |= BasicSymbolRef::SF_Undefined; |
| else |
| Flags |= BasicSymbolRef::SF_Exported; |
| |
| if (Sym->isWeakDefined() || Sym->isWeakReferenced()) |
| Flags |= BasicSymbolRef::SF_Weak; |
| |
| return Flags; |
| } |
| |
| TapiFile::TapiFile(MemoryBufferRef Source, const InterfaceFile &interface, |
| Architecture Arch) |
| : SymbolicFile(ID_TapiFile, Source), Arch(Arch) { |
| for (const auto *Symbol : interface.symbols()) { |
| if (!Symbol->getArchitectures().has(Arch)) |
| continue; |
| |
| switch (Symbol->getKind()) { |
| case SymbolKind::GlobalSymbol: |
| Symbols.emplace_back(StringRef(), Symbol->getName(), getFlags(Symbol)); |
| break; |
| case SymbolKind::ObjectiveCClass: |
| if (interface.getPlatforms().count(PlatformKind::macOS) && |
| Arch == AK_i386) { |
| Symbols.emplace_back(ObjC1ClassNamePrefix, Symbol->getName(), |
| getFlags(Symbol)); |
| } else { |
| Symbols.emplace_back(ObjC2ClassNamePrefix, Symbol->getName(), |
| getFlags(Symbol)); |
| Symbols.emplace_back(ObjC2MetaClassNamePrefix, Symbol->getName(), |
| getFlags(Symbol)); |
| } |
| break; |
| case SymbolKind::ObjectiveCClassEHType: |
| Symbols.emplace_back(ObjC2EHTypePrefix, Symbol->getName(), |
| getFlags(Symbol)); |
| break; |
| case SymbolKind::ObjectiveCInstanceVariable: |
| Symbols.emplace_back(ObjC2IVarPrefix, Symbol->getName(), |
| getFlags(Symbol)); |
| break; |
| } |
| } |
| } |
| |
| TapiFile::~TapiFile() = default; |
| |
| void TapiFile::moveSymbolNext(DataRefImpl &DRI) const { DRI.d.a++; } |
| |
| Error TapiFile::printSymbolName(raw_ostream &OS, DataRefImpl DRI) const { |
| assert(DRI.d.a < Symbols.size() && "Attempt to access symbol out of bounds"); |
| const Symbol &Sym = Symbols[DRI.d.a]; |
| OS << Sym.Prefix << Sym.Name; |
| return Error::success(); |
| } |
| |
| Expected<uint32_t> TapiFile::getSymbolFlags(DataRefImpl DRI) const { |
| assert(DRI.d.a < Symbols.size() && "Attempt to access symbol out of bounds"); |
| return Symbols[DRI.d.a].Flags; |
| } |
| |
| basic_symbol_iterator TapiFile::symbol_begin() const { |
| DataRefImpl DRI; |
| DRI.d.a = 0; |
| return BasicSymbolRef{DRI, this}; |
| } |
| |
| basic_symbol_iterator TapiFile::symbol_end() const { |
| DataRefImpl DRI; |
| DRI.d.a = Symbols.size(); |
| return BasicSymbolRef{DRI, this}; |
| } |