001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.vmmagic.pragma;
014
015import java.lang.annotation.Retention;
016import java.lang.annotation.RetentionPolicy;
017import java.lang.annotation.Target;
018import java.lang.annotation.ElementType;
019import org.vmmagic.Pragma;
020
021/**
022 * Methods of a class that implements this interface
023 * are treated specially by the machine code compiler:
024 * the method prologue saves all the volatile registers
025 * and the method epilogue restores all the volatile registers
026 */
027@Retention(RetentionPolicy.RUNTIME)
028@Target(ElementType.TYPE)
029@Pragma
030public @interface SaveVolatile { }