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Minor updates on gas and removed/refactored old code.

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This commit is contained in:
obscuren
2014-12-20 02:21:13 +01:00
parent f5b8f3d41b
commit 1508a23a6f
6 changed files with 55 additions and 42 deletions
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5
vm/environment.go
View File

@ -2,6 +2,7 @@ package vm
import (
"errors"
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/ethutil"
@ -74,3 +75,7 @@ func (self *Log) Data() []byte {
func (self *Log) RlpData() interface{} {
return []interface{}{self.address, ethutil.ByteSliceToInterface(self.topics), self.data}
}
func (self *Log) String() string {
return fmt.Sprintf("[A=%x T=%x D=%x]", self.address, self.topics, self.data)
}

41
vm/vm_debug.go
View File

@ -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])
}
switch op {
case CALLDATACOPY, CODECOPY, EXTCODECOPY:
additionalGas.Add(additionalGas, u256(31))
additionalGas.Div(additionalGas, u256(32))
addStepGasUsage(additionalGas)
case SHA3:
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))
switch op {
case CALLDATACOPY, CODECOPY, EXTCODECOPY:
addStepGasUsage(new(big.Int).Div(newMemSize, u256(32)))
case SHA3:
g := new(big.Int).Div(newMemSize, u256(32))
g.Mul(g, GasSha3Byte)
addStepGasUsage(g)
}
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: