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Debugging mode for vm

This commit is contained in:
obscuren 2014-07-05 13:24:49 +02:00
parent 329887df99
commit b232acd04e
1 changed files with 14 additions and 17 deletions
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31
ethchain/vm.go
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@ -24,14 +24,10 @@ var (
GasTx = big.NewInt(500) GasTx = big.NewInt(500)
) )
func CalculateTxGas(initSize *big.Int) *big.Int { type Debugger interface {
totalGas := new(big.Int) BreakHook(step int, op OpCode, mem *Memory, stack *Stack, stateObject *StateObject) bool
StepHook(step int, op OpCode, mem *Memory, stack *Stack, stateObject *StateObject) bool
txTotalBytes := new(big.Int).Set(initSize) BreakPoints() []int64
txTotalBytes.Div(txTotalBytes, ethutil.Big32)
totalGas.Add(totalGas, new(big.Int).Mul(txTotalBytes, GasSStore))
return totalGas
} }
type Vm struct { type Vm struct {
@ -53,14 +49,13 @@ type Vm struct {
err error err error
// Debugging // Debugging
Hook DebugHook Dbg Debugger
BreakPoints []int64 BreakPoints []int64
Stepping bool Stepping bool
Fn string Fn string
} }
type DebugHook func(step int, op OpCode, mem *Memory, stack *Stack, stateObject *StateObject) bool
type RuntimeVars struct { type RuntimeVars struct {
Origin []byte Origin []byte
Block *Block Block *Block
@ -754,12 +749,14 @@ func (vm *Vm) RunClosure(closure *Closure) (ret []byte, err error) {
vm.Endl() vm.Endl()
if vm.Hook != nil { if vm.Dbg != nil {
for _, instrNo := range vm.BreakPoints { for _, instrNo := range vm.Dbg.BreakPoints() {
if pc.Cmp(big.NewInt(instrNo)) == 0 || vm.Stepping { if pc.Cmp(big.NewInt(instrNo)) == 0 {
vm.Stepping = true if !vm.Dbg.BreakHook(prevStep, op, mem, stack, closure.Object()) {
return nil, nil
if !vm.Hook(prevStep, op, mem, stack, closure.Object()) { }
} else if vm.Stepping {
if !vm.Dbg.StepHook(prevStep, op, mem, stack, closure.Object()) {
return nil, nil return nil, nil
} }
} }