org.jikesrvm.classloader

Class NativeMethod

java.lang.Object

org.jikesrvm.classloader.AnnotatedElement

org.jikesrvm.classloader.RVMMember

org.jikesrvm.classloader.RVMMethod

org.jikesrvm.classloader.NativeMethod

All Implemented Interfaces:

AnnotatedElement

public final class NativeMethod
extends RVMMethod

A native method of a java class.

Field Summary

Fields

Modifier and Type	Field and Description
private Address	nativeIP the IP of the native procedure
private Address	nativeTOC the TOC of the native procedure.

Fields inherited from class org.jikesrvm.classloader.RVMMethod

currentCompiledMethod

Fields inherited from class org.jikesrvm.classloader.RVMMember

memRef, modifiers, offset

Fields inherited from class org.jikesrvm.classloader.AnnotatedElement

declaredAnnotationDatas

Constructor Summary

Constructors

Constructor and Description
NativeMethod(TypeReference declaringClass, MemberReference memRef, short modifiers, TypeReference[] exceptionTypes, Atom signature, RVMAnnotation[] annotations, RVMAnnotation[][] parameterAnnotations, Object annotationDefault) Construct native method information

Method Summary

Modifier and Type	Method and Description
protected CompiledMethod	genCode() Generates the code for this method.
private String	getMangledName(boolean sig) Computes the mangled name of the native routine: Java_Class_Method_Sig
Address	getNativeIP()
Address	getNativeTOC()
void	registerNativeSymbol(Address symbolAddress) Registers a native method.
private String	replaceCharWithString(String originalString, char targetChar, String replaceString)
private boolean	resolveNativeMethod()
void	unregisterNativeSymbol()

Methods inherited from class org.jikesrvm.classloader.RVMMethod

compile, createDefaultConstructor, createReflectionMethod, findOrCreateJtocOffset, getAnnotationDefault, getCurrentCompiledMethod, getCurrentEntryCodeArray, getDeclaredParameterAnnotations, getExceptionTypes, getInvoker, getParameterTypes, getParameterWords, getReturnType, hasNoInlinePragma, invalidateCompiledMethod, isAbstract, isBridge, isClassInitializer, isCompiled, isFinal, isInterruptible, isNative, isNonMovingAllocation, isObjectInitializer, isObjectInitializerHelper, isPure, isRuntimePure, isRuntimeServiceMethod, isSpecializedInvoke, isStatic, isStrictFP, isSynchronized, isSynthetic, isSysCall, isUninterruptible, isUnpreemptible, isVarArgs, mayWrite, readMethod, replaceCompiledMethod

Methods inherited from class org.jikesrvm.classloader.RVMMember

getDeclaringClass, getDescriptor, getId, getMemberRef, getModifiers, getName, getOffset, getSignature, hashCode, hasOffset, isPrivate, isProtected, isPublic, setOffset, toString

Methods inherited from class org.jikesrvm.classloader.AnnotatedElement

getAnnotation, getAnnotations, getAnnotationsInternal, getDeclaredAnnotations, getDeclaredAnnotationsInternal, hasAnnotations, hasBaselineNoRegistersAnnotation, hasBaselineSaveLSRegistersAnnotation, hasInlineAnnotation, hasInterruptibleAnnotation, hasLogicallyUninterruptibleAnnotation, hasNoBoundsCheckAnnotation, hasNoCheckStoreAnnotation, hasNoEscapesAnnotation, hasNoInlineAnnotation, hasNonMovingAllocationAnnotation, hasNonMovingAnnotation, hasNoNullCheckAnnotation, hasNoOptCompileAnnotation, hasPreemptibleAnnotation, hasPureAnnotation, hasRuntimeFinalAnnotation, hasRuntimePureAnnotation, hasUninterruptibleAnnotation, hasUninterruptibleNoWarnAnnotation, hasUnpreemptibleAnnotation, hasUnpreemptibleNoWarnAnnotation, hasUntracedAnnotation, isAnnotationDeclared, isAnnotationPresent, readAnnotations, toAnnotations

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.reflect.AnnotatedElement

getAnnotationsByType, getDeclaredAnnotation, getDeclaredAnnotationsByType

Field Detail

nativeIP

private Address nativeIP

the IP of the native procedure

nativeTOC

private Address nativeTOC

the TOC of the native procedure. Only used if the VM is built for the PowerPC 64 Bit ELF ABI. TODO: Consider making a subclass of NativeMethod for this ABI and pushing this field down to it. For now, just bloat up all native methods by 1 slot.

Constructor Detail

NativeMethod

NativeMethod(TypeReference declaringClass,
             MemberReference memRef,
             short modifiers,
             TypeReference[] exceptionTypes,
             Atom signature,
             RVMAnnotation[] annotations,
             RVMAnnotation[][] parameterAnnotations,
             Object annotationDefault)

Construct native method information

Parameters:

declaringClass - the RVMClass object of the class that declared this method.

memRef - the canonical memberReference for this member.

modifiers - modifiers associated with this member.

exceptionTypes - exceptions thrown by this method.

signature - generic type of this method.

annotations - array of runtime visible annotations

parameterAnnotations - array of runtime visible parameter annotations

annotationDefault - value for this annotation that appears

Method Detail

genCode

protected CompiledMethod genCode()

Description copied from class: RVMMethod

Generates the code for this method.

Specified by:

genCode in class RVMMethod

Returns:

an object representing the compiled method

getNativeIP

public Address getNativeIP()

getNativeTOC

public Address getNativeTOC()

replaceCharWithString

private String replaceCharWithString(String originalString,
                                     char targetChar,
                                     String replaceString)

getMangledName

private String getMangledName(boolean sig)

Computes the mangled name of the native routine: Java_Class_Method_Sig

Parameters:

sig - whether the sig name should be appended

Returns:

the mangled name

resolveNativeMethod

private boolean resolveNativeMethod()

registerNativeSymbol

public void registerNativeSymbol(Address symbolAddress)

Registers a native method.

Parameters:

symbolAddress - address of native function that implements the method

unregisterNativeSymbol

public void unregisterNativeSymbol()