1 //===----- EPCDebugObjectRegistrar.cpp - EPC-based debug registration -----===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/ExecutionEngine/Orc/EPCDebugObjectRegistrar.h" 10 11 #include "llvm/ExecutionEngine/Orc/Core.h" 12 #include "llvm/ExecutionEngine/Orc/Shared/SimplePackedSerialization.h" 13 #include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h" 14 #include "llvm/Support/BinaryStreamWriter.h" 15 16 namespace llvm { 17 namespace orc { 18 19 Expected<std::unique_ptr<EPCDebugObjectRegistrar>> createJITLoaderGDBRegistrar( 20 ExecutionSession &ES, 21 std::optional<ExecutorAddr> RegistrationFunctionDylib) { 22 auto &EPC = ES.getExecutorProcessControl(); 23 24 if (!RegistrationFunctionDylib) { 25 if (auto D = EPC.loadDylib(nullptr)) 26 RegistrationFunctionDylib = *D; 27 else 28 return D.takeError(); 29 } 30 31 SymbolStringPtr RegisterFn = 32 EPC.getTargetTriple().isOSBinFormatMachO() 33 ? EPC.intern("_llvm_orc_registerJITLoaderGDBWrapper") 34 : EPC.intern("llvm_orc_registerJITLoaderGDBWrapper"); 35 36 SymbolLookupSet RegistrationSymbols; 37 RegistrationSymbols.add(RegisterFn); 38 39 auto Result = 40 EPC.lookupSymbols({{*RegistrationFunctionDylib, RegistrationSymbols}}); 41 if (!Result) 42 return Result.takeError(); 43 44 assert(Result->size() == 1 && "Unexpected number of dylibs in result"); 45 assert((*Result)[0].size() == 1 && 46 "Unexpected number of addresses in result"); 47 48 ExecutorAddr RegisterAddr = (*Result)[0][0].getAddress(); 49 return std::make_unique<EPCDebugObjectRegistrar>(ES, RegisterAddr); 50 } 51 52 Error EPCDebugObjectRegistrar::registerDebugObject(ExecutorAddrRange TargetMem, 53 bool AutoRegisterCode) { 54 return ES.callSPSWrapper<void(shared::SPSExecutorAddrRange, bool)>( 55 RegisterFn, TargetMem, AutoRegisterCode); 56 } 57 58 } // namespace orc 59 } // namespace llvm 60