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VMDebugger.class.st
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VMDebugger.class.st
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Class {
#name : #VMDebugger,
#superclass : #SpPresenter,
#instVars : [
'virtualMachine',
'cogit',
'machineSimulator',
'instructions',
'stepButton',
'disassembleAtPCButton',
'machineState',
'initialInstructionToDisassemble',
'stack',
'frameContainer'
],
#category : #'VMMaker-Tools'
}
{ #category : #specs }
VMDebugger class >> defaultSpec [
^ SpBoxLayout newHorizontal
add: #stack;
add: (SpBoxLayout newVertical
add: #frameContainer;
yourself);
yourself
]
{ #category : #'as yet unclassified' }
VMDebugger class >> openOn: aVirtualMachine [
self new
virtualMachine: aVirtualMachine;
openWithSpec.
]
{ #category : #accessing }
VMDebugger >> cogit [
^ cogit
]
{ #category : #accessing }
VMDebugger >> cogit: anObject [
cogit := anObject
]
{ #category : #initialization }
VMDebugger >> connectPresenters [
| instructionsContextMenu |
stack whenSelectionChangedDo: [ :selection |
selection isEmpty ifFalse: [ self selectFrame: selection selectedItem ] ].
stepButton action: [ self step ].
disassembleAtPCButton action: [ self disassembleAtPC ].
instructionsContextMenu := SpMenuPresenter new.
instructionsContextMenu addItem: [ :item |
item
name: 'Set Intruction Pointer Here';
action: [ self setInstructionPointerToSelectedInstruction ] ].
instructionsContextMenu addItem: [ :item |
item
name: 'Run to Here';
action: [ self runToSelectedInstruction ] ].
instructionsContextMenu addItem: [ :item |
item
name: 'Inspect';
action: [ instructions selection selectedItem inspect ] ].
instructions contextMenu: instructionsContextMenu
]
{ #category : #actions }
VMDebugger >> disassembleAtPC [
self initialInstructionToDisassemble: machineSimulator instructionPointerRegisterValue.
self refreshInstructions.
]
{ #category : #showing }
VMDebugger >> initialDisassembly [
^ machineSimulator disassembler
printImmediatesInHexa;
useAlternatePrinterVariant;
disassembleNext: 150
instructionsIn: (cogit objectMemory memory memoryObject
copyFrom: self initialInstructionToDisassemble - cogit objectMemory memory initialAddress + 1
to: self initialInstructionToDisassemble - cogit objectMemory memory initialAddress + 600)
startAddress: self initialInstructionToDisassemble
pc: machineSimulator instructionPointerRegisterValue
]
{ #category : #showing }
VMDebugger >> initialExtent [
^ 1000@1000
]
{ #category : #showing }
VMDebugger >> initialInstructionToDisassemble [
^ initialInstructionToDisassemble
ifNil: [ machineSimulator instructionPointerRegisterValue ]
]
{ #category : #showing }
VMDebugger >> initialInstructionToDisassemble: anInstructionAddress [
initialInstructionToDisassemble := anInstructionAddress
]
{ #category : #initialization }
VMDebugger >> initializePresenters [
machineState := self newTable.
machineState
addColumn: (SpStringTableColumn evaluated: #name);
addColumn: (SpStringTableColumn evaluated: #alias);
addColumn: (SpStringTableColumn evaluated: [ :register | register printString ]).
instructions := self newTable.
instructions
addColumn: (SpStringTableColumn evaluated: [ :item | item address hex ]);
addColumn:
((SpImageTableColumn evaluated: [ :item |
item address = machineSimulator instructionPointerRegisterValue
ifTrue: [ self iconNamed: #forward ] ])
width: 50;
yourself);
addColumn: (SpStringTableColumn evaluated: #assemblyCodeString);
addColumn: (SpStringTableColumn evaluated: [:e | e codeBytesString: cogit objectMemory memory ]).
stack := self newTable.
stack
" addColumn: (SpStringTableColumn evaluated: [ :aPosition | aPosition specialRegister ] );"
addColumn: (SpStringTableColumn evaluated: [ :aFrame | aFrame description ] )
" addColumn: (SpStringTableColumn evaluated: [ :aPosition |
[aPosition value hex] on: Error do: [ 'Error' ] ])".
frameContainer := self newCode.
stepButton := self newButton.
stepButton label: 'Step'.
disassembleAtPCButton := self newButton.
disassembleAtPCButton label: 'Disassemble at PC'
]
{ #category : #accessing }
VMDebugger >> machineSimulator [
^ machineSimulator
]
{ #category : #accessing }
VMDebugger >> machineSimulator: anObject [
machineSimulator := anObject
]
{ #category : #showing }
VMDebugger >> openWithSpec [
" self refreshRegisters.
self refreshInstructions.
" self refreshStack.
super openWithSpec.
]
{ #category : #showing }
VMDebugger >> refreshInstructions [
instructions items: self initialDisassembly
]
{ #category : #showing }
VMDebugger >> refreshRegisters [
machineState items: machineSimulator registerDescriptors
]
{ #category : #showing }
VMDebugger >> refreshStack [
stack items: virtualMachine stack
]
{ #category : #'as yet unclassified' }
VMDebugger >> runToSelectedInstruction [
| selectedInstruction |
selectedInstruction := self selectedInstruction.
machineSimulator
startAt: machineSimulator instructionPointerRegisterValue
until: selectedInstruction address
timeout: 100000 "microseconds = 100ms"
count: 0.
self refreshStack.
]
{ #category : #events }
VMDebugger >> selectFrame: aVMStackFrame [
frameContainer text: aVMStackFrame sourceCode
]
{ #category : #'as yet unclassified' }
VMDebugger >> selectedInstruction [
^ instructions selection selectedItem
]
{ #category : #actions }
VMDebugger >> setInstructionPointerToSelectedInstruction [
machineSimulator instructionPointerRegisterValue: instructions selection selectedItem address
]
{ #category : #actions }
VMDebugger >> step [
machineSimulator step.
self refreshStack.
self refreshRegisters
]
{ #category : #accessing }
VMDebugger >> virtualMachine [
^ virtualMachine
]
{ #category : #accessing }
VMDebugger >> virtualMachine: anObject [
virtualMachine := anObject
]