1 //===-- DynamicLoaderWasmDYLD.cpp -----------------------------------------===// 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 "DynamicLoaderWasmDYLD.h" 10 11 #include "Plugins/ObjectFile/wasm/ObjectFileWasm.h" 12 #include "lldb/Core/Module.h" 13 #include "lldb/Core/PluginManager.h" 14 #include "lldb/Core/Section.h" 15 #include "lldb/Target/Process.h" 16 #include "lldb/Target/Target.h" 17 #include "lldb/Utility/Log.h" 18 19 using namespace lldb; 20 using namespace lldb_private; 21 using namespace lldb_private::wasm; 22 23 LLDB_PLUGIN_DEFINE(DynamicLoaderWasmDYLD) 24 25 DynamicLoaderWasmDYLD::DynamicLoaderWasmDYLD(Process *process) 26 : DynamicLoader(process) {} 27 28 void DynamicLoaderWasmDYLD::Initialize() { 29 PluginManager::RegisterPlugin(GetPluginNameStatic(), 30 GetPluginDescriptionStatic(), CreateInstance); 31 } 32 33 llvm::StringRef DynamicLoaderWasmDYLD::GetPluginDescriptionStatic() { 34 return "Dynamic loader plug-in that watches for shared library " 35 "loads/unloads in WebAssembly engines."; 36 } 37 38 DynamicLoader *DynamicLoaderWasmDYLD::CreateInstance(Process *process, 39 bool force) { 40 bool should_create = force; 41 if (!should_create) { 42 should_create = 43 (process->GetTarget().GetArchitecture().GetTriple().getArch() == 44 llvm::Triple::wasm32); 45 } 46 47 if (should_create) 48 return new DynamicLoaderWasmDYLD(process); 49 50 return nullptr; 51 } 52 53 void DynamicLoaderWasmDYLD::DidAttach() { 54 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_DYNAMIC_LOADER)); 55 LLDB_LOGF(log, "DynamicLoaderWasmDYLD::%s()", __FUNCTION__); 56 57 // Ask the process for the list of loaded WebAssembly modules. 58 auto error = m_process->LoadModules(); 59 LLDB_LOG_ERROR(log, std::move(error), "Couldn't load modules: {0}"); 60 } 61 62 ThreadPlanSP DynamicLoaderWasmDYLD::GetStepThroughTrampolinePlan(Thread &thread, 63 bool stop) { 64 return ThreadPlanSP(); 65 } 66