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authorobscuren <geffobscura@gmail.com>2014-12-20 09:21:13 +0800
committerobscuren <geffobscura@gmail.com>2014-12-20 09:21:13 +0800
commit1508a23a6fe3cc50f718bfd6c62caae056534c09 (patch)
tree78853077f6b961bf27c5bdf74673c255e96aba1d /vm
parentf5b8f3d41b533d51eb81e895ed9b6aa31d7aaaef (diff)
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Minor updates on gas and removed/refactored old code.
Diffstat (limited to 'vm')
-rw-r--r--vm/environment.go5
-rw-r--r--vm/vm_debug.go41
2 files changed, 27 insertions, 19 deletions
diff --git a/vm/environment.go b/vm/environment.go
index d77fb1419..969bc5e43 100644
--- a/vm/environment.go
+++ b/vm/environment.go
@@ -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)
+}
diff --git a/vm/vm_debug.go b/vm/vm_debug.go
index fd16a3895..aa3291e66 100644
--- a/vm/vm_debug.go
+++ b/vm/vm_debug.go
@@ -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: