org.jikesrvm.architecture

Class JNIHelpers

java.lang.Object

org.jikesrvm.architecture.JNIHelpers

public final class JNIHelpers
extends Object

Dispatches calls to JNIHelpers to the appropriate architecture-specific class.

This is necessary until the PowerPC JNI design is changed to match the design for IA32 JNI (i.e. until PowerPC uses C code to do var args passing on both sides). When PPC uses C var arg passing, the code can be refactored and moved from the JNI helpers into a single, architecture-independent class.

Constructor Summary

Constructors

Constructor and Description
JNIHelpers()

Method Summary

Modifier and Type	Method and Description
static Object	invokeInitializer(Class<?> cls, int methodID, Address argAddress, boolean isJvalue, boolean isDotDotStyle)
static Object	invokeWithDotDotVarArg(int methodID, TypeReference expectReturnType)
static Object	invokeWithDotDotVarArg(Object obj, int methodID, TypeReference expectReturnType, boolean skip4Args)
static Object	invokeWithVarArg(int methodID, Address argAddress, TypeReference expectReturnType)
static Object	invokeWithVarArg(Object obj, int methodID, Address argAddress, TypeReference expectReturnType, boolean skip4Args)

Methods inherited from class java.lang.Object

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

Constructor Detail

JNIHelpers

public JNIHelpers()

Method Detail

invokeInitializer

public static Object invokeInitializer(Class<?> cls,
                                       int methodID,
                                       Address argAddress,
                                       boolean isJvalue,
                                       boolean isDotDotStyle)
                                throws Exception

Throws:

Exception

invokeWithDotDotVarArg

public static Object invokeWithDotDotVarArg(int methodID,
                                            TypeReference expectReturnType)
                                     throws Exception

Throws:

Exception

invokeWithDotDotVarArg

public static Object invokeWithDotDotVarArg(Object obj,
                                            int methodID,
                                            TypeReference expectReturnType,
                                            boolean skip4Args)
                                     throws Exception

Throws:

Exception

invokeWithVarArg

public static Object invokeWithVarArg(int methodID,
                                      Address argAddress,
                                      TypeReference expectReturnType)
                               throws Exception

Throws:

Exception

invokeWithVarArg

public static Object invokeWithVarArg(Object obj,
                                      int methodID,
                                      Address argAddress,
                                      TypeReference expectReturnType,
                                      boolean skip4Args)
                               throws Exception

Throws:

Exception