diff --git a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp --- a/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp +++ b/llvm/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp @@ -308,7 +308,9 @@ << " SID: " << SectionID << " Offset: " << format("%p", (uintptr_t)Addr) << " flags: " << *FlagsOrErr << "\n"); - GlobalSymbolTable[Name] = SymbolTableEntry(SectionID, Addr, *JITSymFlags); + if (!Name.empty()) // Skip absolute symbol relocations. + GlobalSymbolTable[Name] = + SymbolTableEntry(SectionID, Addr, *JITSymFlags); } else if (SymType == object::SymbolRef::ST_Function || SymType == object::SymbolRef::ST_Data || SymType == object::SymbolRef::ST_Unknown || @@ -340,8 +342,9 @@ << " SID: " << SectionID << " Offset: " << format("%p", (uintptr_t)SectOffset) << " flags: " << *FlagsOrErr << "\n"); - GlobalSymbolTable[Name] = - SymbolTableEntry(SectionID, SectOffset, *JITSymFlags); + if (!Name.empty()) // Skip absolute symbol relocations + GlobalSymbolTable[Name] = + SymbolTableEntry(SectionID, SectOffset, *JITSymFlags); } } @@ -769,8 +772,9 @@ LLVM_DEBUG(dbgs() << "Allocating common symbol " << Name << " address " << format("%p", Addr) << "\n"); - GlobalSymbolTable[Name] = - SymbolTableEntry(SectionID, Offset, std::move(*JITSymFlags)); + if (!Name.empty()) // Skip absolute symbol relocations. + GlobalSymbolTable[Name] = + SymbolTableEntry(SectionID, Offset, std::move(*JITSymFlags)); Offset += Size; Addr += Size; } @@ -930,6 +934,8 @@ if (Loc == GlobalSymbolTable.end()) { ExternalSymbolRelocations[SymbolName].push_back(RE); } else { + assert(!SymbolName.empty() && + "Empty symbol should not be in GlobalSymbolTable"); // Copy the RE since we want to modify its addend. RelocationEntry RECopy = RE; const auto &SymInfo = Loc->second; @@ -1237,7 +1243,8 @@ for (auto &RelocKV : SharedThis->ExternalSymbolRelocations) { StringRef Name = RelocKV.first(); - assert(!Name.empty() && "Symbol has no name?"); + if (Name.empty()) // Skip absolute symbol relocations. + continue; assert(!SharedThis->GlobalSymbolTable.count(Name) && "Name already processed. RuntimeDyld instances can not be re-used " "when finalizing with finalizeAsync.");