Package ghidra.pcode.emu.jit.gen

Record Class FieldForSpaceIndirect

java.lang.Object

java.lang.Record

ghidra.pcode.emu.jit.gen.FieldForSpaceIndirect

Record Components:

space - the address space of the state space to pre-fetch

All Implemented Interfaces:

FieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>, InstanceFieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>

public record FieldForSpaceIndirect(AddressSpace space)
extends Record
implements InstanceFieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>

A field request for a pre-fetched JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace

The field is used for indirect memory accesses. For those, the address space is given in the p-code, but the offset must be computed at run time. Thus, we can pre-fetch the state space, but not any particular page.

Constructor Summary

Constructors

Constructor	Description
FieldForSpaceIndirect(AddressSpace space)	Creates an instance of a FieldForSpaceIndirect record class.

Method Summary

Modifier and Type	Method	Description
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
<THIS extends JitCompiledPassage, N extends Emitter.Next> Emitter<N>	genInit(Emitter<N> em, Local<Types.TRef<THIS>> localThis, JitCodeGenerator<THIS> gen, org.objectweb.asm.ClassVisitor cv)	Emit the field declaration and its initialization bytecode
<THIS extends JitCompiledPassage, N extends Emitter.Next> Emitter<Emitter.Ent<N,Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>>	genLoad(Emitter<N> em, Local<Types.TRef<THIS>> localThis, JitCodeGenerator<THIS> gen)	Emit code to load the field onto the JVM stack
final int	hashCode()	Returns a hash code value for this object.
String	name()	Derive a suitable name for the field
AddressSpace	space()	Returns the value of the space record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class java.lang.Object

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

Constructor Details

FieldForSpaceIndirect

public FieldForSpaceIndirect(AddressSpace space)

Creates an instance of a FieldForSpaceIndirect record class.

Parameters:

space - the value for the space record component

Method Details

name

public String name()

Description copied from interface: FieldReq

Derive a suitable name for the field

Specified by:

name in interface FieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>

Returns:

the name

genInit

public <THIS extends JitCompiledPassage,
N extends Emitter.Next>
Emitter<N> genInit(Emitter<N> em,
 Local<Types.TRef<THIS>> localThis,
 JitCodeGenerator<THIS> gen,
 org.objectweb.asm.ClassVisitor cv)

Emit the field declaration and its initialization bytecode

The declaration is emitted into the class definition, and the initialization code is emitted into the class constructor.

Consider the "ram" space. The declaration is equivalent to:

 private final JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace spaceInd_ram;
 

And the initialization is equivalent to:

 spaceInd_ram = state.getForSpace(ADDRESS_FACTORY.getAddressSpace(ramId));
 

Specified by:

genInit in interface InstanceFieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>

Type Parameters:

THIS - the type of the compiled passage

N - the incoming stack

Parameters:

em - the emitter typed with the incoming stack

localThis - a handle to the local holding the this reference

gen - the code generator

cv - the visitor for the class definition

Returns:

the emitter typed with the incoming stack

genLoad

public <THIS extends JitCompiledPassage,
N extends Emitter.Next>
Emitter<Emitter.Ent<N,Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>> genLoad(Emitter<N> em,
 Local<Types.TRef<THIS>> localThis,
 JitCodeGenerator<THIS> gen)

Description copied from interface: InstanceFieldReq

Emit code to load the field onto the JVM stack

Specified by:

genLoad in interface InstanceFieldReq<Types.TRef<JitBytesPcodeExecutorStatePiece.JitBytesPcodeExecutorStateSpace>>

Type Parameters:

THIS - the type of the compiled passage

N - the incoming stack

Parameters:

em - the emitter typed with the incoming stack

localThis - a handle to the local holding the this reference

gen - the code generator

Returns:

the emitter typed with the resulting stack, i.e., having pushed the value

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

space

public AddressSpace space()

Returns the value of the space record component.

Returns:

the value of the space record component