/*******************************************************************************
 * Copyright IBM Corp. and others 2014
 *
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which accompanies this
 * distribution and is available at https://www.eclipse.org/legal/epl-2.0/
 * or the Apache License, Version 2.0 which accompanies this distribution and
 * is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * This Source Code may also be made available under the following
 * Secondary Licenses when the conditions for such availability set
 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
 * General Public License, version 2 with the GNU Classpath
 * Exception [1] and GNU General Public License, version 2 with the
 * OpenJDK Assembly Exception [2].
 *
 * [1] https://www.gnu.org/software/classpath/license.html
 * [2] https://openjdk.org/legal/assembly-exception.html
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0 OR GPL-2.0-only WITH Classpath-exception-2.0 OR GPL-2.0-only WITH OpenJDK-assembly-exception-1.0
 *******************************************************************************/

#ifndef JITBUILDER_STACKATLASPOD_INCL
#define JITBUILDER_STACKATLASPOD_INCL

#include <stdint.h>

/*
 * This structure describes the shape of the encoded stack atlas information.
 * It must be a C++ POD object and follow all the rules behind POD formation.
 * Because its fields may be extracted by a runtime system, its exact layout
 * shape MUST be preserved.
 *
 * DO NOT subclass this struct.  A project may replace it by including an
 * identically named header file earlier in the IPATH.
 */

namespace OMR
{

struct StackAtlasPOD
   {
   uint16_t numberOfMaps;
   uint16_t bytesPerStackMap;
   int32_t frameObjectParmOffset;
   int32_t localBaseOffset;
   };

}

#endif // !defined(JITBUILDER_STACKATLASPOD_INCL)
