org.jikesrvm.osr.ia32

Class BaselineExecutionStateExtractor

java.lang.Object

org.jikesrvm.osr.ExecutionStateExtractor

org.jikesrvm.osr.ia32.BaselineExecutionStateExtractor

public final class BaselineExecutionStateExtractor
extends ExecutionStateExtractor

A class that retrieves the VM scope descriptor from a suspended thread whose top method was compiled by the baseline compiler.

Constructor Summary

Constructors

Constructor and Description
BaselineExecutionStateExtractor()

Method Summary

Modifier and Type	Method and Description
ExecutionState	extractState(RVMThread thread, Offset osrFPoff, Offset methFPoff, int cmid) Implements ExecutionStateExtractor.extractState.
private static void	getVariableValue(byte[] stack, Offset offset, byte[] types, BaselineCompiledMethod compiledMethod, boolean kind, ExecutionState state)

Methods inherited from class org.jikesrvm.osr.ExecutionStateExtractor

printStackTraces

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaselineExecutionStateExtractor

public BaselineExecutionStateExtractor()

Method Detail

extractState

public ExecutionState extractState(RVMThread thread,
                                   Offset osrFPoff,
                                   Offset methFPoff,
                                   int cmid)

Implements ExecutionStateExtractor.extractState.

Specified by:

extractState in class ExecutionStateExtractor

Parameters:

thread - : the suspended thread, the registers and stack frames are used.

osrFPoff - : the osr method's stack frame offset

methFPoff - : the real method's stack frame offset

cmid - : the top application method ( system calls are unwounded ). return a ExecutionStateExtractor object.

Returns:

a VM scope descriptor (ExecutionState) for a compiled method on the top of a thread stack, (or a list of descriptors for an inlined method).

getVariableValue

private static void getVariableValue(byte[] stack,
                                     Offset offset,
                                     byte[] types,
                                     BaselineCompiledMethod compiledMethod,
                                     boolean kind,
                                     ExecutionState state)