com.oracle.svm.core.stack

Interface StackFrameVisitor

All Known Implementing Classes:

FramePointerMapWalker, PathExhibitor.FrameVisitor, StackTraceBuilder, ThreadStackPrinter.AllocationFreeStackFrameVisitor, ThreadStackPrinter.Stage0StackFrameVisitor, ThreadStackPrinter.Stage1StackFrameVisitor

public interface StackFrameVisitor

Given access to a thread stack frame, perform some computation on it.

Method Summary

Modifier and Type	Method and Description
default boolean	epilogue() Called after all frames have been visited.
default boolean	prologue() Called before any calls to the visitFrame method.
boolean	visitFrame(org.graalvm.word.Pointer sp, org.graalvm.nativeimage.c.function.CodePointer ip, DeoptimizedFrame deoptimizedFrame) Called for each frame that is visited.

Method Detail

prologue

default boolean prologue()

Called before any calls to the visitFrame method.

Returns:

true if visiting should continue, false otherwise.

visitFrame

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

Called for each frame that is visited.

Parameters:

sp - The stack pointer of the frame being visited.

ip - The instruction pointer of the frame being visited.

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

Returns:

true if visiting should continue, false otherwise.

epilogue

default boolean epilogue()

Called after all frames have been visited.