Module openj9.dtfj

Package com.ibm.dtfj.addressspace

Class DumpReaderAddressSpace

java.lang.Object

com.ibm.dtfj.addressspace.CommonAddressSpace

com.ibm.dtfj.addressspace.DumpReaderAddressSpace

All Implemented Interfaces:

IAbstractAddressSpace

public class DumpReaderAddressSpace
extends CommonAddressSpace

Constructor Summary

Constructors

Constructor	Description
DumpReaderAddressSpace(MemoryRange[] ranges, DumpReader reader, boolean isLittleEndian, boolean is64Bit)

Method Summary

Modifier and Type	Method	Description
int	getBytesAt(int asid, long address, byte[] buffer)
boolean	isExecutable(int asid, long address)
boolean	isReadOnly(int asid, long address)
boolean	isShared(int asid, long address)

Methods declared in class com.ibm.dtfj.addressspace.CommonAddressSpace

_residentRange, bytesPerPointer, compareAddress, findPattern, findWhichMemoryRange, getByteAt, getByteOrder, getIntAt, getLongAt, getMemoryBytes, getMemoryBytes, getMemoryRanges, getPointerAt, getShortAt

Methods declared in class java.lang.Object

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

Constructor Details

DumpReaderAddressSpace

public DumpReaderAddressSpace(MemoryRange[] ranges,
 DumpReader reader,
 boolean isLittleEndian,
 boolean is64Bit)

Method Details

isExecutable

public boolean isExecutable(int asid,
 long address)
                     throws MemoryAccessException

Parameters:

asid - an address space ID

address - a byte-offset into the asid

Returns:

true if this memory address is within an executable page

Throws:

MemoryAccessException - if the memory cannot be read

isReadOnly

public boolean isReadOnly(int asid,
 long address)
                   throws MemoryAccessException

Parameters:

asid - an address space ID

address - a byte-offset into the asid

Returns:

true if write access to this memory address was disabled in the image

Throws:

MemoryAccessException - if the memory cannot be read

isShared

public boolean isShared(int asid,
 long address)
                 throws MemoryAccessException

Parameters:

asid - an address space ID

address - a byte-offset into the asid

Returns:

true if this memory address is shared between processes

Throws:

MemoryAccessException - if the memory cannot be read

getBytesAt

public int getBytesAt(int asid,
 long address,
 byte[] buffer)
               throws MemoryAccessException

Parameters:

asid - an address space ID

address - a byte-offset into the asid

buffer - a byte array to receive the bytes

Returns:

the number of bytes read into buffer

Throws:

MemoryAccessException - if the memory cannot be read