C++ Target::CreateBreakpoint方法代码示例

BreakpointSP
LanguageRuntime::CreateExceptionBreakpoint(
    Target &target,
    lldb::LanguageType language,
    bool catch_bp,
    bool throw_bp,
    bool is_internal)
{
    BreakpointSP exc_breakpt_sp;
    BreakpointResolverSP resolver_sp(new ExceptionBreakpointResolver(NULL, language, catch_bp, throw_bp));
    SearchFilterSP filter_sp(target.GetSearchFilterForModule(NULL));

    exc_breakpt_sp = target.CreateBreakpoint (filter_sp, resolver_sp, is_internal);

    return exc_breakpt_sp;
}

BreakpointSP
LanguageRuntime::CreateExceptionBreakpoint (Target &target,
                                            lldb::LanguageType language,
                                            bool catch_bp,
                                            bool throw_bp,
                                            bool is_internal)
{
    BreakpointResolverSP resolver_sp(new ExceptionBreakpointResolver(language, catch_bp, throw_bp));
    SearchFilterSP filter_sp(new ExceptionSearchFilter(target.shared_from_this(), language));
    bool hardware = false;
    bool resolve_indirect_functions = false;
    BreakpointSP exc_breakpt_sp (target.CreateBreakpoint (filter_sp, resolver_sp, is_internal, hardware, resolve_indirect_functions));
    if (exc_breakpt_sp)
    {
        Breakpoint::BreakpointPreconditionSP precondition_sp = CreateExceptionPrecondition(language, catch_bp, throw_bp);
        if (precondition_sp)
            exc_breakpt_sp->SetPrecondition(precondition_sp);

        if (is_internal)
            exc_breakpt_sp->SetBreakpointKind("exception");
    }
    
    return exc_breakpt_sp;
}

BreakpointSP
PlatformDarwin::SetThreadCreationBreakpoint (Target &target)
{
    BreakpointSP bp_sp;
    static const char *g_bp_names[] =
    {
        "start_wqthread",
        "_pthread_wqthread",
        "_pthread_start",
    };

    static const char *g_bp_modules[] =
    {
        "libsystem_c.dylib",
        "libSystem.B.dylib"
    };

    FileSpecList bp_modules;
    for (int i = 0; i < sizeof(g_bp_modules)/sizeof(const char *); i++)
    {
        const char *bp_module = g_bp_modules[i];
        bp_modules.Append(FileSpec(bp_module, false));
    }

    bool internal = true;
    LazyBool skip_prologue = eLazyBoolNo;
    bp_sp = target.CreateBreakpoint (&bp_modules,
                                     NULL,
                                     g_bp_names,
                                     sizeof(g_bp_names)/sizeof(const char *),
                                     eFunctionNameTypeFull,
                                     skip_prologue,
                                     internal);

    return bp_sp;
}

lldb::BreakpointSP Breakpoint::CreateFromStructuredData(
    Target &target, StructuredData::ObjectSP &object_data, Status &error) {
  BreakpointSP result_sp;

  StructuredData::Dictionary *breakpoint_dict = object_data->GetAsDictionary();

  if (!breakpoint_dict || !breakpoint_dict->IsValid()) {
    error.SetErrorString("Can't deserialize from an invalid data object.");
    return result_sp;
  }

  StructuredData::Dictionary *resolver_dict;
  bool success = breakpoint_dict->GetValueForKeyAsDictionary(
      BreakpointResolver::GetSerializationKey(), resolver_dict);
  if (!success) {
    error.SetErrorStringWithFormat(
        "Breakpoint data missing toplevel resolver key");
    return result_sp;
  }

  Status create_error;
  BreakpointResolverSP resolver_sp =
      BreakpointResolver::CreateFromStructuredData(*resolver_dict,
                                                   create_error);
  if (create_error.Fail()) {
    error.SetErrorStringWithFormat(
        "Error creating breakpoint resolver from data: %s.",
        create_error.AsCString());
    return result_sp;
  }

  StructuredData::Dictionary *filter_dict;
  success = breakpoint_dict->GetValueForKeyAsDictionary(
      SearchFilter::GetSerializationKey(), filter_dict);
  SearchFilterSP filter_sp;
  if (!success)
    filter_sp.reset(
        new SearchFilterForUnconstrainedSearches(target.shared_from_this()));
  else {
    filter_sp = SearchFilter::CreateFromStructuredData(target, *filter_dict,
                                                       create_error);
    if (create_error.Fail()) {
      error.SetErrorStringWithFormat(
          "Error creating breakpoint filter from data: %s.",
          create_error.AsCString());
      return result_sp;
    }
  }

  std::unique_ptr<BreakpointOptions> options_up;
  StructuredData::Dictionary *options_dict;
  success = breakpoint_dict->GetValueForKeyAsDictionary(
      BreakpointOptions::GetSerializationKey(), options_dict);
  if (success) {
    options_up = BreakpointOptions::CreateFromStructuredData(
        target, *options_dict, create_error);
    if (create_error.Fail()) {
      error.SetErrorStringWithFormat(
          "Error creating breakpoint options from data: %s.",
          create_error.AsCString());
      return result_sp;
    }
  }

  bool hardware = false;
  success = breakpoint_dict->GetValueForKeyAsBoolean(
      Breakpoint::GetKey(OptionNames::Hardware), hardware);

  result_sp =
      target.CreateBreakpoint(filter_sp, resolver_sp, false, hardware, true);

  if (result_sp && options_up) {
    result_sp->m_options_up = std::move(options_up);
  }

  StructuredData::Array *names_array;
  success = breakpoint_dict->GetValueForKeyAsArray(
      Breakpoint::GetKey(OptionNames::Names), names_array);
  if (success && names_array) {
    size_t num_names = names_array->GetSize();
    for (size_t i = 0; i < num_names; i++) {
      llvm::StringRef name;
      Status error;
      success = names_array->GetItemAtIndexAsString(i, name);
      target.AddNameToBreakpoint(result_sp, name.str().c_str(), error);
    }
  }

  return result_sp;
}