Esempio n. 1
0
void ciMethodData::load_data() {
  MethodData* mdo = get_MethodData();
  if (mdo == NULL) {
    return;
  }

  // To do: don't copy the data if it is not "ripe" -- require a minimum #
  // of invocations.

  // Snapshot the data -- actually, take an approximate snapshot of
  // the data.  Any concurrently executing threads may be changing the
  // data as we copy it.
  Copy::disjoint_words((HeapWord*) mdo,
                       (HeapWord*) &_orig,
                       sizeof(_orig) / HeapWordSize);
  Arena* arena = CURRENT_ENV->arena();
  _data_size = mdo->data_size();
  _extra_data_size = mdo->extra_data_size();
  int total_size = _data_size + _extra_data_size;
  _data = (intptr_t *) arena->Amalloc(total_size);
  Copy::disjoint_words((HeapWord*) mdo->data_base(), (HeapWord*) _data, total_size / HeapWordSize);

  // Traverse the profile data, translating any oops into their
  // ci equivalents.
  ResourceMark rm;
  ciProfileData* ci_data = first_data();
  ProfileData* data = mdo->first_data();
  while (is_valid(ci_data)) {
    ci_data->translate_from(data);
    ci_data = next_data(ci_data);
    data = mdo->next_data(data);
  }
  if (mdo->parameters_type_data() != NULL) {
    _parameters = data_layout_at(mdo->parameters_type_data_di());
    ciParametersTypeData* parameters = new ciParametersTypeData(_parameters);
    parameters->translate_from(mdo->parameters_type_data());
  }

  load_extra_data();

  // Note:  Extra data are all BitData, and do not need translation.
  _current_mileage = MethodData::mileage_of(mdo->method());
  _invocation_counter = mdo->invocation_count();
  _backedge_counter = mdo->backedge_count();
  _state = mdo->is_mature()? mature_state: immature_state;

  _eflags = mdo->eflags();
  _arg_local = mdo->arg_local();
  _arg_stack = mdo->arg_stack();
  _arg_returned  = mdo->arg_returned();
#ifndef PRODUCT
  if (ReplayCompiles) {
    ciReplay::initialize(this);
  }
#endif
}
Esempio n. 2
0
// copy our escape info to the MethodData* if it exists
void ciMethodData::update_escape_info() {
  VM_ENTRY_MARK;
  MethodData* mdo = get_MethodData();
  if ( mdo != NULL) {
    mdo->set_eflags(_eflags);
    mdo->set_arg_local(_arg_local);
    mdo->set_arg_stack(_arg_stack);
    mdo->set_arg_returned(_arg_returned);
    int arg_count = mdo->method()->size_of_parameters();
    for (int i = 0; i < arg_count; i++) {
      mdo->set_arg_modified(i, arg_modified(i));
    }
  }
}
Esempio n. 3
0
void ciMethodData::dump_replay_data(outputStream* out) {
  ResourceMark rm;
  MethodData* mdo = get_MethodData();
  Method* method = mdo->method();
  Klass* holder = method->method_holder();
  out->print("ciMethodData %s %s %s %d %d",
             holder->name()->as_quoted_ascii(),
             method->name()->as_quoted_ascii(),
             method->signature()->as_quoted_ascii(),
             _state,
             current_mileage());

  // dump the contents of the MDO header as raw data
  unsigned char* orig = (unsigned char*)&_orig;
  int length = sizeof(_orig);
  out->print(" orig %d", length);
  for (int i = 0; i < length; i++) {
    out->print(" %d", orig[i]);
  }

  // dump the MDO data as raw data
  int elements = (data_size() + extra_data_size()) / sizeof(intptr_t);
  out->print(" data %d", elements);
  for (int i = 0; i < elements; i++) {
    // We could use INTPTR_FORMAT here but that's a zero justified
    // which makes comparing it with the SA version of this output
    // harder.
#ifdef _LP64
    out->print(" 0x%" FORMAT64_MODIFIER "x", data()[i]);
#else
    out->print(" 0x%x", data()[i]);
#endif
  }

  // The MDO contained oop references as ciObjects, so scan for those
  // and emit pairs of offset and klass name so that they can be
  // reconstructed at runtime.  The first round counts the number of
  // oop references and the second actually emits them.
  ciParametersTypeData* parameters = parameters_type_data();
  for (int count = 0, round = 0; round < 2; round++) {
    if (round == 1) out->print(" oops %d", count);
    ProfileData* pdata = first_data();
    for ( ; is_valid(pdata); pdata = next_data(pdata)) {
      if (pdata->is_VirtualCallData()) {
        ciVirtualCallData* vdata = (ciVirtualCallData*)pdata;
        dump_replay_data_receiver_type_helper<ciVirtualCallData>(out, round, count, vdata);
        if (pdata->is_VirtualCallTypeData()) {
          ciVirtualCallTypeData* call_type_data = (ciVirtualCallTypeData*)pdata;
          dump_replay_data_call_type_helper<ciVirtualCallTypeData>(out, round, count, call_type_data);
        }
      } else if (pdata->is_ReceiverTypeData()) {
        ciReceiverTypeData* vdata = (ciReceiverTypeData*)pdata;
        dump_replay_data_receiver_type_helper<ciReceiverTypeData>(out, round, count, vdata);
      } else if (pdata->is_CallTypeData()) {
          ciCallTypeData* call_type_data = (ciCallTypeData*)pdata;
          dump_replay_data_call_type_helper<ciCallTypeData>(out, round, count, call_type_data);
      }
    }
    if (parameters != NULL) {
      for (int i = 0; i < parameters->number_of_parameters(); i++) {
        dump_replay_data_type_helper(out, round, count, parameters, ParametersTypeData::type_offset(i), parameters->valid_parameter_type(i));
      }
    }
  }
  for (int count = 0, round = 0; round < 2; round++) {
    if (round == 1) out->print(" methods %d", count);
    dump_replay_data_extra_data_helper(out, round, count);
  }
  out->cr();
}