MachineSpecific (Jikes RVM API)

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org.jikesrvm
Class MachineSpecific

java.lang.Object
  org.jikesrvm.MachineSpecific

Direct Known Subclasses:: MachineSpecificIA

public abstract class MachineSpecific
extends Object
extends Object

Wrappers around machine specific code

Constructor Summary
`MachineSpecific()`

Method Summary
`void`	`adjustESP(ArchitectureSpecific.Registers registers, Offset delta, boolean traceAdjustments)` A thread's stack has been moved or resized.
`abstract void`	`baselineEmitLoadTIB(ArchitectureSpecific.Assembler asm, int dest, int object, Offset tibOffset)` The following method will emit code that moves a reference to an object's TIB into a destination register.
`abstract void`	`initializeStack(ArchitectureSpecific.Registers contextRegisters, Address ip, Address sp)` The following method initializes a thread stack as if "startoff" method had been called by an empty baseline-compiled "sentinel" frame with one local variable.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

MachineSpecific

public MachineSpecific()

Method Detail

baselineEmitLoadTIB

public abstract void baselineEmitLoadTIB(ArchitectureSpecific.Assembler asm,
                                         int dest,
                                         int object,
                                         Offset tibOffset)

The following method will emit code that moves a reference to an object's TIB into a destination register.

Parameters:: asm - the assembler object to emit code with; dest - the number of the destination register; object - the number of the register holding the object reference; tibOffset - the offset of the tib from the object header

initializeStack

public abstract void initializeStack(ArchitectureSpecific.Registers contextRegisters,
                                     Address ip,
                                     Address sp)

The following method initializes a thread stack as if "startoff" method had been called by an empty baseline-compiled "sentinel" frame with one local variable.

Parameters:: contextRegisters - The context registers for this thread; ip - The instruction pointer for the "startoff" method; sp - The base of the stack

adjustESP

public void adjustESP(ArchitectureSpecific.Registers registers,
                      Offset delta,
                      boolean traceAdjustments)

A thread's stack has been moved or resized. Adjust the ESP register to reflect new position.

Parameters:: registers - The registers for this thread; delta - The displacement to be applied; traceAdjustments - Log all adjustments to stderr if true