@ -108,13 +108,13 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
}
)
vmlogger . Debugf ( "(%d) (%x) %x (code=%d) gas: %v (d) %x\n" , self . env . Depth ( ) , caller . Address ( ) [ : 4 ] , closure . Address ( ) , len ( code ) , closure . Gas , callData )
// Don't bother with the execution if there's no code.
if len ( code ) == 0 {
return closure . Return ( nil ) , nil
}
vmlogger . Debugf ( "(%d) (%x) %x gas: %v (d) %x\n" , self . env . Depth ( ) , caller . Address ( ) [ : 4 ] , closure . Address ( ) , closure . Gas , callData )
for {
prevStep = step
// The base for all big integer arithmetic
@ -134,6 +134,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
addStepGasUsage ( GasStep )
var newMemSize * big . Int = ethutil . Big0
var additionalGas * big . Int = new ( big . Int )
// Stack Check, memory resize & gas phase
switch op {
// Stack checks only
@ -213,22 +214,24 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
newMemSize = calcMemSize ( stack . Peek ( ) , stack . data [ stack . Len ( ) - 2 ] )
case SHA3 :
require ( 2 )
gas . Set ( GasSha )
newMemSize = calcMemSize ( stack . Peek ( ) , stack . data [ stack . Len ( ) - 2 ] )
additionalGas . Set ( stack . data [ stack . Len ( ) - 2 ] )
case CALLDATACOPY :
require ( 2 )
newMemSize = calcMemSize ( stack . Peek ( ) , stack . data [ stack . Len ( ) - 3 ] )
additionalGas . Set ( stack . data [ stack . Len ( ) - 3 ] )
case CODECOPY :
require ( 3 )
newMemSize = calcMemSize ( stack . Peek ( ) , stack . data [ stack . Len ( ) - 3 ] )
additionalGas . Set ( stack . data [ stack . Len ( ) - 3 ] )
case EXTCODECOPY :
require ( 4 )
newMemSize = calcMemSize ( stack . data [ stack . Len ( ) - 2 ] , stack . data [ stack . Len ( ) - 4 ] )
additionalGas . Set ( stack . data [ stack . Len ( ) - 4 ] )
case CALL , CALLCODE :
require ( 7 )
gas . Set ( GasCall )
@ -245,20 +248,23 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
newMemSize = calcMemSize ( stack . data [ stack . Len ( ) - 2 ] , stack . data [ stack . Len ( ) - 3 ] )
}
if newMemSize . Cmp ( ethutil . Big0 ) > 0 {
newMemSize . Add ( newMemSize , u256 ( 31 ) )
newMemSize . Div ( newMemSize , u256 ( 32 ) )
newMemSize . Mul ( newMemSize , u256 ( 32 ) )
switch op {
case CALLDATACOPY , CODECOPY , EXTCODECOPY :
addStepGasUsage ( new ( big . Int ) . Div ( newMemSize , u256 ( 32 ) ) )
additionalGas . Add ( additionalGas , u256 ( 31 ) )
additionalGas . Div ( additionalGas , u256 ( 32 ) )
addStepGasUsage ( additionalGas )
case SHA3 :
g := new ( big . Int ) . Div ( newMemSize , u256 ( 32 ) )
g . Mul ( g , GasSha3Byte )
addStepGasUsage ( g )
additionalGas . Add ( additionalGas , u256 ( 31 ) )
additionalGas . Div ( additionalGas , u256 ( 32 ) )
additionalGas . Mul ( additionalGas , GasSha3Byte )
addStepGasUsage ( additionalGas )
}
if newMemSize . Cmp ( ethutil . Big0 ) > 0 {
newMemSize . Add ( newMemSize , u256 ( 31 ) )
newMemSize . Div ( newMemSize , u256 ( 32 ) )
newMemSize . Mul ( newMemSize , u256 ( 32 ) )
if newMemSize . Cmp ( u256 ( int64 ( mem . Len ( ) ) ) ) > 0 {
memGasUsage := new ( big . Int ) . Sub ( newMemSize , u256 ( int64 ( mem . Len ( ) ) ) )
memGasUsage . Mul ( GasMemory , memGasUsage )
@ -643,9 +649,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
case CODECOPY , EXTCODECOPY :
var code [ ] byte
if op == EXTCODECOPY {
addr := stack . Pop ( ) . Bytes ( )
code = statedb . GetCode ( addr )
code = statedb . GetCode ( stack . Pop ( ) . Bytes ( ) )
} else {
code = closure . Code
}
@ -663,12 +667,11 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
} else if cOff + l > size {
l = uint64 ( math . Min ( float64 ( cOff + l ) , float64 ( size ) ) )
}
codeCopy := code [ cOff : cOff + l ]
mem . Set ( mOff , l , codeCopy )
self . Printf ( " => [%v, %v, %v] %x" , mOff , cOff , l , code [ cOff : cOff + l ] )
self . Printf ( " => [%v, %v, %v] %x" , mOff , cOff , l , codeCopy )
case GASPRICE :
stack . Push ( closure . Price )
@ -891,7 +894,7 @@ func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *
size , offset := stack . Popn ( )
ret := mem . Get ( offset . Int64 ( ) , size . Int64 ( ) )
self . Printf ( " => (%d) 0x%x" , len ( ret ) , ret ) . Endl ( )
self . Printf ( " => [%v, %v] (%d) 0x%x" , offset , size , len ( ret ) , ret ) . Endl ( )
return closure . Return ( ret ) , nil
case SUICIDE :