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>> 20 createJITLoaderGDBRegistrar(ExecutionSession &ES) { 21 auto &EPC = ES.getExecutorProcessControl(); 22 auto ProcessHandle = EPC.loadDylib(nullptr); 23 if (!ProcessHandle) 24 return ProcessHandle.takeError(); 25 26 SymbolStringPtr RegisterFn = 27 EPC.getTargetTriple().isOSBinFormatMachO() 28 ? EPC.intern("_llvm_orc_registerJITLoaderGDBWrapper") 29 : EPC.intern("llvm_orc_registerJITLoaderGDBWrapper"); 30 31 SymbolLookupSet RegistrationSymbols; 32 RegistrationSymbols.add(RegisterFn); 33 34 auto Result = EPC.lookupSymbols({{*ProcessHandle, RegistrationSymbols}}); 35 if (!Result) 36 return Result.takeError(); 37 38 assert(Result->size() == 1 && "Unexpected number of dylibs in result"); 39 assert((*Result)[0].size() == 1 && 40 "Unexpected number of addresses in result"); 41 42 return std::make_unique<EPCDebugObjectRegistrar>(ES, (*Result)[0][0]); 43 } 44 45 Error EPCDebugObjectRegistrar::registerDebugObject(sys::MemoryBlock TargetMem) { 46 return ES.callSPSWrapper<void(SPSExecutorAddress, uint64_t)>( 47 RegisterFn, ExecutorAddress::fromPtr(TargetMem.base()), 48 static_cast<uint64_t>(TargetMem.allocatedSize())); 49 } 50 51 } // namespace orc 52 } // namespace llvm 53