hotspot/src/cpu/zero/vm/interpreter_zero.cpp
author twisti
Wed, 12 May 2010 03:49:52 -0700
changeset 5427 08c6b2b940f7
parent 4745 5ec280d96474
child 5547 f4b087cbb361
permissions -rw-r--r--
6951784: Zero deoptimizer changes Summary: The way Zero currently handles deoptimization can lead to methods being freed while they are still being executed. Reviewed-by: twisti Contributed-by: Gary Benson <gbenson@redhat.com>

/*
 * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
 * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

#include "incls/_precompiled.incl"
#include "incls/_interpreter_zero.cpp.incl"

address AbstractInterpreterGenerator::generate_slow_signature_handler() {
  _masm->advance(1);
  return (address) InterpreterRuntime::slow_signature_handler;
}

address InterpreterGenerator::generate_math_entry(
    AbstractInterpreter::MethodKind kind) {
  if (!InlineIntrinsics)
    return NULL;

  Unimplemented();
}

address InterpreterGenerator::generate_abstract_entry() {
  return ShouldNotCallThisEntry();
}

address InterpreterGenerator::generate_method_handle_entry() {
  return ShouldNotCallThisEntry();
}

bool AbstractInterpreter::can_be_compiled(methodHandle m) {
  return true;
}

int AbstractInterpreter::size_activation(methodOop method,
                                         int tempcount,
                                         int popframe_extra_args,
                                         int moncount,
                                         int callee_param_count,
                                         int callee_locals,
                                         bool is_top_frame) {
  return layout_activation(method,
                           tempcount,
                           popframe_extra_args,
                           moncount,
                           callee_param_count,
                           callee_locals,
                           (frame*) NULL,
                           (frame*) NULL,
                           is_top_frame);
}

void Deoptimization::unwind_callee_save_values(frame* f,
                                               vframeArray* vframe_array) {
}