org.graalvm.compiler.hotspot.stubs

Class ExceptionHandlerStub

java.lang.Object

org.graalvm.compiler.hotspot.stubs.Stub

org.graalvm.compiler.hotspot.stubs.SnippetStub

org.graalvm.compiler.hotspot.stubs.ExceptionHandlerStub

All Implemented Interfaces:

Snippets

public class ExceptionHandlerStub
extends SnippetStub

Stub called by the exception handler entry point in a compiled method. This entry point is used when returning to a method to handle an exception thrown by a callee. It is not used for routing implicit exceptions. Therefore, it does not need to save any registers as HotSpot uses a caller save convention.

The descriptor for a call to this stub is HotSpotBackend.EXCEPTION_HANDLER.

Field Summary

Fields

Modifier and Type	Field and Description
static HotSpotForeignCallDescriptor	EXCEPTION_HANDLER_FOR_PC

Fields inherited from class org.graalvm.compiler.hotspot.stubs.SnippetStub

method

Fields inherited from class org.graalvm.compiler.hotspot.stubs.Stub

code, linkage, options, providers

Constructor Summary

Constructors

Constructor and Description
ExceptionHandlerStub(OptionValues options, HotSpotProviders providers, HotSpotForeignCallLinkage linkage)

Method Summary

Modifier and Type	Method and Description
static Word	exceptionHandlerForPc(ForeignCallDescriptor exceptionHandlerForPc, Word thread)
protected Object	getConstantParameterValue(int index, String name)

Methods inherited from class org.graalvm.compiler.hotspot.stubs.SnippetStub

buildInitialGraph, debugScopeContext, getGraph, getInstalledCodeOwner, getMethod, makeConstArgs, registerSnippet, toString

Methods inherited from class org.graalvm.compiler.hotspot.stubs.Stub

checkSafeDataReference, createLIRSuites, createSuites, getCode, getCompilationResult, getDestroyedCallerRegisters, getLinkage, getRegisterConfig, getStubCompilationId, initDestroyedCallerRegisters, shouldSaveRegistersAroundCalls

Methods inherited from class java.lang.Object

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

Field Detail

EXCEPTION_HANDLER_FOR_PC

public static final HotSpotForeignCallDescriptor EXCEPTION_HANDLER_FOR_PC

Constructor Detail

ExceptionHandlerStub

public ExceptionHandlerStub(OptionValues options,
                            HotSpotProviders providers,
                            HotSpotForeignCallLinkage linkage)

Method Detail

getConstantParameterValue

protected Object getConstantParameterValue(int index,
                                           String name)

Overrides:

getConstantParameterValue in class SnippetStub

exceptionHandlerForPc

public static Word exceptionHandlerForPc(ForeignCallDescriptor exceptionHandlerForPc,
                                         Word thread)