com.oracle.svm.core.genscavenge

Class PathExhibitor.FrameVisitor

java.lang.Object

com.oracle.svm.core.genscavenge.PathExhibitor.FrameVisitor

All Implemented Interfaces:

StackFrameVisitor

Enclosing class:

PathExhibitor

public static class PathExhibitor.FrameVisitor
extends Object
implements StackFrameVisitor

A reusable StackFrameVisitor.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.graalvm.word.Pointer	targetPointer A pointer to the object I am looking for.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FrameVisitor()

Method Summary

Modifier and Type	Method and Description
void	initialize(Object targetObject, PathExhibitor.PathElements res)
void	reset()
boolean	visitFrame(org.graalvm.word.Pointer sp, org.graalvm.nativeimage.c.function.CodePointer ip, CodeInfo codeInfo, DeoptimizedFrame deoptimizedFrame) Called for each frame that is visited.

Methods inherited from class java.lang.Object

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

Field Detail

targetPointer

protected org.graalvm.word.Pointer targetPointer

A pointer to the object I am looking for.

Constructor Detail

FrameVisitor

protected FrameVisitor()

Method Detail

initialize

public void initialize(Object targetObject,
                       PathExhibitor.PathElements res)

visitFrame

public boolean visitFrame(org.graalvm.word.Pointer sp,
                          org.graalvm.nativeimage.c.function.CodePointer ip,
                          CodeInfo codeInfo,
                          DeoptimizedFrame deoptimizedFrame)

Description copied from interface: StackFrameVisitor

Called for each frame that is visited. Note that unless this method is annotated with Uninterruptible or executing within a safepoint, the frame on the stack could be deoptimized at any safepoint check. Nevertheless, the passed codeInfo remains valid for accessing information about the code at the (possibly outdated) instruction pointer (this is ensured by the caller).

Specified by:

visitFrame in interface StackFrameVisitor

Parameters:

sp - The stack pointer of the frame being visited.

ip - The instruction pointer of the frame being visited.

codeInfo - Information on the code at the IP, for use with CodeInfoAccess.

deoptimizedFrame - The information about a deoptimized frame, or null if the frame is not deoptimized.

Returns:

true if visiting should continue, false otherwise.

reset

public void reset()