lib.unwind
Class AddressSpace

java.lang.Object
  lib.unwind.AddressSpace

Direct Known Subclasses:

LibunwindAddressSpace, TestUnwind.TestAddressSpace

public abstract class AddressSpace
extends Object

Field Summary

(package private) int	magic
(package private) static int	MAGIC Marker so that it is possible to confirm that this is an AddressSpace.
long	unwAddressSpace
Unwind	unwinder

Constructor Summary

AddressSpace(Unwind unwinder, ByteOrder byteOrder)

Method Summary

abstract int	accessMem(long addr, byte[] valp, boolean write)
abstract int	accessReg(Number regnum, byte[] val, boolean write) Access LIBUNWIND Register REGNUM.
Cursor	createCursor()
protected void	finalize()
abstract int	findProcInfo(long ip, boolean needUnwindInfo, ProcInfo procInfo) Locate the information needed to unwind a particular procedure.
abstract long	getReg(Number regnum) See UnwindH.hxx:access_reg(write=false); only used for small integer registers.
abstract void	putUnwindInfo(ProcInfo procInfo) Used to free a ProcInfo object created with needUnwindInfo as true.
void	setCachingPolicy(CachingPolicy cachingPolicy)
abstract void	setReg(Number regnum, long regval) See UnwindH.hxx:access_reg(write=true); only used for small integer registers.

Methods inherited from class java.lang.Object

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

Field Detail

MAGIC

static final int MAGIC

Marker so that it is possible to confirm that this is an AddressSpace.

See Also:

Constant Field Values

magic

final int magic

See Also:

Constant Field Values

unwAddressSpace

public final long unwAddressSpace

unwinder

public final Unwind unwinder

Constructor Detail

AddressSpace

public AddressSpace(Unwind unwinder,
                    ByteOrder byteOrder)

Method Detail

finalize

protected void finalize()

Overrides:

finalize in class Object

createCursor

public Cursor createCursor()

setCachingPolicy

public void setCachingPolicy(CachingPolicy cachingPolicy)

findProcInfo

public abstract int findProcInfo(long ip,
                                 boolean needUnwindInfo,
                                 ProcInfo procInfo)

Locate the information needed to unwind a particular procedure.

Parameters:

ip - the instruction-address inside the procedure whose information is needed.

needUnwindInfo - whether the format, unwind_info_size and unwind_info fields of the returned ProcInfo should be set.

Returns:

A ProcInfo object holding the processes info.

putUnwindInfo

public abstract void putUnwindInfo(ProcInfo procInfo)

Used to free a ProcInfo object created with needUnwindInfo as true.

Parameters:

procInfo - the procInfo object to be freed.

accessMem

public abstract int accessMem(long addr,
                              byte[] valp,
                              boolean write)

getReg

public abstract long getReg(Number regnum)

See UnwindH.hxx:access_reg(write=false); only used for small integer registers.

setReg

public abstract void setReg(Number regnum,
                            long regval)

See UnwindH.hxx:access_reg(write=true); only used for small integer registers.

accessReg

public abstract int accessReg(Number regnum,
                              byte[] val,
                              boolean write)

Access LIBUNWIND Register REGNUM.