File: DynamicLoaderWasmDYLD.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (70 lines) | stat: -rw-r--r-- 2,331 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
//===-- DynamicLoaderWasmDYLD.cpp -----------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "DynamicLoaderWasmDYLD.h"

#include "Plugins/ObjectFile/wasm/ObjectFileWasm.h"
#include "lldb/Core/Module.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Section.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
#include "lldb/Utility/Log.h"

using namespace lldb;
using namespace lldb_private;
using namespace lldb_private::wasm;

LLDB_PLUGIN_DEFINE(DynamicLoaderWasmDYLD)

DynamicLoaderWasmDYLD::DynamicLoaderWasmDYLD(Process *process)
    : DynamicLoader(process) {}

void DynamicLoaderWasmDYLD::Initialize() {
  PluginManager::RegisterPlugin(GetPluginNameStatic(),
                                GetPluginDescriptionStatic(), CreateInstance);
}

ConstString DynamicLoaderWasmDYLD::GetPluginNameStatic() {
  static ConstString g_plugin_name("wasm-dyld");
  return g_plugin_name;
}

const char *DynamicLoaderWasmDYLD::GetPluginDescriptionStatic() {
  return "Dynamic loader plug-in that watches for shared library "
         "loads/unloads in WebAssembly engines.";
}

DynamicLoader *DynamicLoaderWasmDYLD::CreateInstance(Process *process,
                                                     bool force) {
  bool should_create = force;
  if (!should_create) {
    should_create =
        (process->GetTarget().GetArchitecture().GetTriple().getArch() ==
         llvm::Triple::wasm32);
  }

  if (should_create)
    return new DynamicLoaderWasmDYLD(process);

  return nullptr;
}

void DynamicLoaderWasmDYLD::DidAttach() {
  Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_DYNAMIC_LOADER));
  LLDB_LOGF(log, "DynamicLoaderWasmDYLD::%s()", __FUNCTION__);

  // Ask the process for the list of loaded WebAssembly modules.
  auto error = m_process->LoadModules();
  LLDB_LOG_ERROR(log, std::move(error), "Couldn't load modules: {0}");
}

ThreadPlanSP DynamicLoaderWasmDYLD::GetStepThroughTrampolinePlan(Thread &thread,
                                                                 bool stop) {
  return ThreadPlanSP();
}