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org.jikesrvm.classloader
Class NativeMethod

java.lang.Object
  extended by org.jikesrvm.classloader.AnnotatedElement
      extended by org.jikesrvm.classloader.RVMMember
          extended by org.jikesrvm.classloader.RVMMethod
              extended by org.jikesrvm.classloader.NativeMethod
All Implemented Interfaces:
AnnotatedElement, BytecodeConstants, ClassLoaderConstants, Constants, HeapLayoutConstants, ThinLockConstants, TIBLayoutConstants, SizeConstants
public final class NativeMethod
extends RVMMethod

A native method of a java class.

Field Summary
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
 
Fields inherited from interface org.jikesrvm.classloader.BytecodeConstants
JBC_aaload, JBC_aastore, JBC_aconst_null, JBC_aload, JBC_aload_0, JBC_aload_1, JBC_aload_2, JBC_aload_3, JBC_anewarray, JBC_areturn, JBC_arraylength, JBC_astore, JBC_astore_0, JBC_astore_1, JBC_astore_2, JBC_astore_3, JBC_athrow, JBC_baload, JBC_bastore, JBC_bipush, JBC_caload, JBC_castore, JBC_checkcast, JBC_d2f, JBC_d2i, JBC_d2l, JBC_dadd, JBC_daload, JBC_dastore, JBC_dcmpg, JBC_dcmpl, JBC_dconst_0, JBC_dconst_1, JBC_ddiv, JBC_dload, JBC_dload_0, JBC_dload_1, JBC_dload_2, JBC_dload_3, JBC_dmul, JBC_dneg, JBC_drem, JBC_dreturn, JBC_dstore, JBC_dstore_0, JBC_dstore_1, JBC_dstore_2, JBC_dstore_3, JBC_dsub, JBC_dup, JBC_dup_x1, JBC_dup_x2, JBC_dup2, JBC_dup2_x1, JBC_dup2_x2, JBC_f2d, JBC_f2i, JBC_f2l, JBC_fadd, JBC_faload, JBC_fastore, JBC_fcmpg, JBC_fcmpl, JBC_fconst_0, JBC_fconst_1, JBC_fconst_2, JBC_fdiv, JBC_fload, JBC_fload_0, JBC_fload_1, JBC_fload_2, JBC_fload_3, JBC_fmul, JBC_fneg, JBC_frem, JBC_freturn, JBC_fstore, JBC_fstore_0, JBC_fstore_1, JBC_fstore_2, JBC_fstore_3, JBC_fsub, JBC_getfield, JBC_getstatic, JBC_goto, JBC_goto_w, JBC_i2d, JBC_i2f, JBC_i2l, JBC_iadd, JBC_iaload, JBC_iand, JBC_iastore, JBC_iconst_0, JBC_iconst_1, JBC_iconst_2, JBC_iconst_3, JBC_iconst_4, JBC_iconst_5, JBC_iconst_m1, JBC_idiv, JBC_if_acmpeq, JBC_if_acmpne, JBC_if_icmpeq, JBC_if_icmpge, JBC_if_icmpgt, JBC_if_icmple, JBC_if_icmplt, JBC_if_icmpne, JBC_ifeq, JBC_ifge, JBC_ifgt, JBC_ifle, JBC_iflt, JBC_ifne, JBC_ifnonnull, JBC_ifnull, JBC_iinc, JBC_iload, JBC_iload_0, JBC_iload_1, JBC_iload_2, JBC_iload_3, JBC_impdep1, JBC_impdep2, JBC_imul, JBC_ineg, JBC_instanceof, JBC_int2byte, JBC_int2char, JBC_int2short, JBC_invokeinterface, JBC_invokespecial, JBC_invokestatic, JBC_invokevirtual, JBC_ior, JBC_irem, JBC_ireturn, JBC_ishl, JBC_ishr, JBC_istore, JBC_istore_0, JBC_istore_1, JBC_istore_2, JBC_istore_3, JBC_isub, JBC_iushr, JBC_ixor, JBC_jsr, JBC_jsr_w, JBC_l2d, JBC_l2f, JBC_l2i, JBC_ladd, JBC_laload, JBC_land, JBC_lastore, JBC_lcmp, JBC_lconst_0, JBC_lconst_1, JBC_ldc, JBC_ldc_w, JBC_ldc2_w, JBC_ldiv, JBC_length, JBC_lload, JBC_lload_0, JBC_lload_1, JBC_lload_2, JBC_lload_3, JBC_lmul, JBC_lneg, JBC_lookupswitch, JBC_lor, JBC_lrem, JBC_lreturn, JBC_lshl, JBC_lshr, JBC_lstore, JBC_lstore_0, JBC_lstore_1, JBC_lstore_2, JBC_lstore_3, JBC_lsub, JBC_lushr, JBC_lxor, JBC_monitorenter, JBC_monitorexit, JBC_multianewarray, JBC_name, JBC_new, JBC_newarray, JBC_nop, JBC_pop, JBC_pop2, JBC_putfield, JBC_putstatic, JBC_ret, JBC_return, JBC_saload, JBC_sastore, JBC_sipush, JBC_swap, JBC_tableswitch, JBC_wide, JBC_xxxunusedxxx
 
Fields inherited from interface org.jikesrvm.Constants
NOT_REACHED, REFLECTION_FPRS_BITS, REFLECTION_FPRS_MASK, REFLECTION_GPRS_BITS, REFLECTION_GPRS_MASK
 
Fields inherited from interface org.jikesrvm.objectmodel.ThinLockConstants
TL_DEDICATED_U16_OFFSET, TL_DEDICATED_U16_SHIFT, TL_LOCK_COUNT_MASK, TL_LOCK_COUNT_SHIFT, TL_LOCK_COUNT_UNIT, TL_LOCK_ID_MASK, TL_LOCK_ID_SHIFT, TL_NUM_BITS_RC, TL_NUM_BITS_STAT, TL_NUM_BITS_TID, TL_STAT_BIASABLE, TL_STAT_FAT, TL_STAT_MASK, TL_STAT_SHIFT, TL_STAT_THIN, TL_THREAD_ID_MASK, TL_THREAD_ID_SHIFT, TL_UNLOCK_MASK
 
Fields inherited from interface org.jikesrvm.SizeConstants
BITS_IN_ADDRESS, BITS_IN_BOOLEAN, BITS_IN_BYTE, BITS_IN_CHAR, BITS_IN_DOUBLE, BITS_IN_EXTENT, BITS_IN_FLOAT, BITS_IN_INT, BITS_IN_LONG, BITS_IN_OFFSET, BITS_IN_PAGE, BITS_IN_SHORT, BITS_IN_WORD, BYTES_IN_ADDRESS, BYTES_IN_BOOLEAN, BYTES_IN_BYTE, BYTES_IN_CHAR, BYTES_IN_DOUBLE, BYTES_IN_EXTENT, BYTES_IN_FLOAT, BYTES_IN_INT, BYTES_IN_LONG, BYTES_IN_OFFSET, BYTES_IN_PAGE, BYTES_IN_SHORT, BYTES_IN_WORD, LOG_BITS_IN_ADDRESS, LOG_BITS_IN_BOOLEAN, LOG_BITS_IN_BYTE, LOG_BITS_IN_CHAR, LOG_BITS_IN_DOUBLE, LOG_BITS_IN_EXTENT, LOG_BITS_IN_FLOAT, LOG_BITS_IN_INT, LOG_BITS_IN_LONG, LOG_BITS_IN_OFFSET, LOG_BITS_IN_PAGE, LOG_BITS_IN_SHORT, LOG_BITS_IN_WORD, LOG_BYTES_IN_ADDRESS, LOG_BYTES_IN_BOOLEAN, LOG_BYTES_IN_BYTE, LOG_BYTES_IN_CHAR, LOG_BYTES_IN_DOUBLE, LOG_BYTES_IN_EXTENT, LOG_BYTES_IN_FLOAT, LOG_BYTES_IN_INT, LOG_BYTES_IN_LONG, LOG_BYTES_IN_OFFSET, LOG_BYTES_IN_PAGE, LOG_BYTES_IN_SHORT, LOG_BYTES_IN_WORD
 
Fields inherited from interface org.jikesrvm.objectmodel.TIBLayoutConstants
IMT_METHOD_SLOTS, NEEDS_DYNAMIC_LINK, TIB_ARRAY_ELEMENT_TIB_INDEX, TIB_DOES_IMPLEMENT_INDEX, TIB_FIRST_SPECIALIZED_METHOD_INDEX, TIB_FIRST_VIRTUAL_METHOD_INDEX, TIB_INTERFACE_DISPATCH_TABLE_INDEX, TIB_SUPERCLASS_IDS_INDEX, TIB_TYPE_INDEX
 
Fields inherited from interface org.jikesrvm.HeapLayoutConstants
BAD_MAP_COMPRESSION, BOOT_IMAGE_CODE_END, BOOT_IMAGE_CODE_SIZE, BOOT_IMAGE_CODE_START, BOOT_IMAGE_DATA_END, BOOT_IMAGE_DATA_SIZE, BOOT_IMAGE_DATA_START, BOOT_IMAGE_END, BOOT_IMAGE_RMAP_END, BOOT_IMAGE_RMAP_START, MAX_BOOT_IMAGE_RMAP_SIZE, MAXIMUM_MAPPABLE
 
Fields inherited from interface org.jikesrvm.classloader.ClassLoaderConstants
ACC_ABSTRACT, ACC_ANNOTATION, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VOLATILE, APPLICABLE_TO_CLASSES, APPLICABLE_TO_FIELDS, APPLICABLE_TO_METHODS, ArrayTypeCode, BooleanTypeCode, BRIDGE, ByteTypeCode, CharTypeCode, CLASS_INITIALIZED, CLASS_INITIALIZER_FAILED, CLASS_INITIALIZING, CLASS_INSTANTIATED, CLASS_LOADED, CLASS_RESOLVED, CLASS_VACANT, ClassTypeCode, CP_CLASS, CP_DOUBLE, CP_FLOAT, CP_INT, CP_LONG, CP_MEMBER, CP_STRING, CP_UTF, DoubleTypeCode, FloatTypeCode, IntTypeCode, LongTypeCode, ShortTypeCode, TAG_DOUBLE, TAG_FIELDREF, TAG_FLOAT, TAG_INT, TAG_INTERFACE_METHODREF, TAG_LONG, TAG_MEMBERNAME_AND_DESCRIPTOR, TAG_METHODREF, TAG_STRING, TAG_TYPEREF, TAG_UNUSED, TAG_UTF, VARARGS, VoidTypeCode
 
Constructor Summary
NativeMethod(TypeReference declaringClass, MemberReference memRef, short modifiers, TypeReference[] exceptionTypes, Atom signature, RVMAnnotation[] annotations, RVMAnnotation[][] parameterAnnotations, Object annotationDefault)
          Construct native method information
 
Method Summary
protected  CompiledMethod genCode()
          Generate the code for this method
private  String getMangledName(boolean sig)
          Compute the mangled name of the native routine: Java_Class_Method_Sig
 Address getNativeIP()
          Get the native IP for this method
 Address getNativeTOC()
          get the native TOC for this method
 void registerNativeSymbol(Address symbolAddress)
          Registers a native method
private  String replaceCharWithString(String originalString, char targetChar, String replaceString)
          replace a character in a string with a string
private  boolean resolveNativeMethod()
           
 void unregisterNativeSymbol()
          Unregisters a native method
 
Methods inherited from class org.jikesrvm.classloader.RVMMethod
compile, createAnnotationInit, createAnnotationMethod, 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
 

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 VM.BuildForPowerOpenABI. TODO: Consider making a PowerOpen subclass of NativeMethod 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
Generate the code for this method

Specified by:
genCode in class RVMMethod

getNativeIP

public Address getNativeIP()
Get the native IP for this method

getNativeTOC

public Address getNativeTOC()
get the native TOC for this method

replaceCharWithString

private String replaceCharWithString(String originalString,
                                     char targetChar,
                                     String replaceString)
replace a character in a string with a string

getMangledName

private String getMangledName(boolean sig)
Compute the mangled name of the native routine: Java_Class_Method_Sig

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()
Unregisters a native method

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