com.oracle.svm.jni.access

Class JNINativeLinkage

java.lang.Object

com.oracle.svm.jni.access.JNINativeLinkage

public final class JNINativeLinkage
extends Object

Encapsulates the code address of a native method's implementation at runtime. This object is accessed in the method's compiled JNINativeCallWrapperMethod.

Constructor Summary

Constructors

Constructor and Description
JNINativeLinkage(String declaringClass, String name, String descriptor) Creates an object for linking the address of a native method.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Returns true iff obj is a JNINativeLinkage and has the same declaring class, name and descriptor as this object.
CGlobalDataInfo	getBuiltInAddress()
String	getDeclaringClassName()
String	getDescriptor()
String	getName()
org.graalvm.word.PointerBase	getOrFindEntryPoint() Gets the native address for the native method represented by this object, attempting to resolve it if it is currently 0.
int	hashCode()
boolean	isBuiltInFunction()
static String	mangle(String s)
void	setEntryPoint(org.graalvm.nativeimage.c.function.CFunctionPointer fnptr) Sets the native address for the native method represented by this object.
String	toString()
void	unsetEntryPoint() Resets the entry point stored for the native method represented by this object, triggering a symbol lookup when the method is called the next time.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

JNINativeLinkage

public JNINativeLinkage(String declaringClass,
                        String name,
                        String descriptor)

Creates an object for linking the address of a native method.

Parameters:

declaringClass - the name of the class declaring the native method

name - the name of the native method

descriptor - the descriptor of the native method

Method Detail

getDeclaringClassName

public String getDeclaringClassName()

getName

public String getName()

getDescriptor

public String getDescriptor()

isBuiltInFunction

public boolean isBuiltInFunction()

getBuiltInAddress

public CGlobalDataInfo getBuiltInAddress()

setEntryPoint

public void setEntryPoint(org.graalvm.nativeimage.c.function.CFunctionPointer fnptr)

Sets the native address for the native method represented by this object.

unsetEntryPoint

public void unsetEntryPoint()

Resets the entry point stored for the native method represented by this object, triggering a symbol lookup when the method is called the next time.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Returns true iff obj is a JNINativeLinkage and has the same declaring class, name and descriptor as this object.

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

getOrFindEntryPoint

public org.graalvm.word.PointerBase getOrFindEntryPoint()

Gets the native address for the native method represented by this object, attempting to resolve it if it is currently 0.

mangle

public static String mangle(String s)