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
LLDB_PLUGIN_DEFINE(DynamicLoaderWasmDYLD)23 LLDB_PLUGIN_DEFINE(DynamicLoaderWasmDYLD)
24
25 DynamicLoaderWasmDYLD::DynamicLoaderWasmDYLD(Process *process)
26 : DynamicLoader(process) {}
27
Initialize()28 void DynamicLoaderWasmDYLD::Initialize() {
29 PluginManager::RegisterPlugin(GetPluginNameStatic(),
30 GetPluginDescriptionStatic(), CreateInstance);
31 }
32
GetPluginNameStatic()33 ConstString DynamicLoaderWasmDYLD::GetPluginNameStatic() {
34 static ConstString g_plugin_name("wasm-dyld");
35 return g_plugin_name;
36 }
37
GetPluginDescriptionStatic()38 const char *DynamicLoaderWasmDYLD::GetPluginDescriptionStatic() {
39 return "Dynamic loader plug-in that watches for shared library "
40 "loads/unloads in WebAssembly engines.";
41 }
42
CreateInstance(Process * process,bool force)43 DynamicLoader *DynamicLoaderWasmDYLD::CreateInstance(Process *process,
44 bool force) {
45 bool should_create = force;
46 if (!should_create) {
47 should_create =
48 (process->GetTarget().GetArchitecture().GetTriple().getArch() ==
49 llvm::Triple::wasm32);
50 }
51
52 if (should_create)
53 return new DynamicLoaderWasmDYLD(process);
54
55 return nullptr;
56 }
57
DidAttach()58 void DynamicLoaderWasmDYLD::DidAttach() {
59 Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_DYNAMIC_LOADER));
60 LLDB_LOGF(log, "DynamicLoaderWasmDYLD::%s()", __FUNCTION__);
61
62 // Ask the process for the list of loaded WebAssembly modules.
63 auto error = m_process->LoadModules();
64 LLDB_LOG_ERROR(log, std::move(error), "Couldn't load modules: {0}");
65 }
66
GetStepThroughTrampolinePlan(Thread & thread,bool stop)67 ThreadPlanSP DynamicLoaderWasmDYLD::GetStepThroughTrampolinePlan(Thread &thread,
68 bool stop) {
69 return ThreadPlanSP();
70 }
71