/*
* This file is part of the Jikes RVM project (http://jikesrvm.org).
*
* This file is licensed to You under the Eclipse Public License (EPL);
* You may not use this file except in compliance with the License. You
* may obtain a copy of the License at
*
* http://www.opensource.org/licenses/eclipse-1.0.php
*
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership.
*/
package org.jikesrvm.osr.ppc;
import org.jikesrvm.ArchitectureSpecific;
import org.jikesrvm.ppc.BaselineConstants;
import org.jikesrvm.runtime.Magic;
import org.jikesrvm.scheduler.RVMThread;
import org.vmmagic.pragma.NoInline;
import org.vmmagic.pragma.Uninterruptible;
import org.vmmagic.unboxed.Address;
import org.vmmagic.unboxed.Offset;
/**
* Code used for recover register value after on stack replacement.
*/
@Uninterruptible
public abstract class PostThreadSwitch implements BaselineConstants {
/* This method must be inlined to keep the correctness
* This method is called at the end of threadSwitch, the caller
* is threadSwitchFrom<...>
*/
@NoInline
public static void postProcess(RVMThread myThread) {
/* We need to generate thread specific code and install new code.
* We have to make sure that no GC happens from here and before
* the new code get executed.
*/
// add branch instruction from CTR.
ArchitectureSpecific.CodeArray bridge = myThread.bridgeInstructions;
Address bridgeaddr = Magic.objectAsAddress(bridge);
Offset offset = myThread.fooFPOffset.plus(STACKFRAME_NEXT_INSTRUCTION_OFFSET);
Magic.objectAsAddress(myThread.getStack()).store(bridgeaddr, offset);
myThread.fooFPOffset = Offset.zero();
myThread.isWaitingForOsr = false;
myThread.bridgeInstructions = null;
}
}