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Diffstat (limited to 'vm/vm.go')
-rw-r--r--vm/vm.go451
1 files changed, 166 insertions, 285 deletions
diff --git a/vm/vm.go b/vm/vm.go
index 3647d7a5e..6f3945472 100644
--- a/vm/vm.go
+++ b/vm/vm.go
@@ -19,8 +19,6 @@ type Vm struct {
// For logging
debug bool
- Dbg Debugger
-
BreakPoints []int64
Stepping bool
Fn string
@@ -66,10 +64,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
destinations = analyseJumpDests(context.Code)
mem = NewMemory()
- stack = NewStack()
+ stack = newStack()
pc uint64 = 0
step = 0
- prevStep = 0
statedb = self.env.State()
jump = func(from uint64, to *big.Int) {
@@ -93,7 +90,6 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
for {
- prevStep = step
// The base for all big integer arithmetic
base := new(big.Int)
@@ -101,11 +97,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
// Get the memory location of pc
op = context.GetOp(pc)
- self.Printf("(pc) %-3d -o- %-14s (m) %-4d (s) %-4d ", pc, op.String(), mem.Len(), stack.Len())
- if self.Dbg != nil {
- //self.Dbg.Step(self, op, mem, stack, context)
- }
-
+ self.Printf("(pc) %-3d -o- %-14s (m) %-4d (s) %-4d ", pc, op.String(), mem.Len(), stack.len())
newMemSize, gas := self.calculateGasAndSize(context, caller, op, statedb, mem, stack)
self.Printf("(g) %-3v (%v)", gas, context.Gas)
@@ -125,40 +117,40 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
switch op {
// 0x20 range
case ADD:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v + %v", y, x)
- base.Add(y, x)
+ base.Add(x, y)
U256(base)
self.Printf(" = %v", base)
- // Pop result back on the stack
- stack.Push(base)
+ // pop result back on the stack
+ stack.push(base)
case SUB:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v - %v", y, x)
- base.Sub(y, x)
+ base.Sub(x, y)
U256(base)
self.Printf(" = %v", base)
- // Pop result back on the stack
- stack.Push(base)
+ // pop result back on the stack
+ stack.push(base)
case MUL:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v * %v", y, x)
- base.Mul(y, x)
+ base.Mul(x, y)
U256(base)
self.Printf(" = %v", base)
- // Pop result back on the stack
- stack.Push(base)
+ // pop result back on the stack
+ stack.push(base)
case DIV:
- x, y := stack.Pop(), stack.Pop()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v / %v", x, y)
if y.Cmp(ethutil.Big0) != 0 {
@@ -168,10 +160,10 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
U256(base)
self.Printf(" = %v", base)
- // Pop result back on the stack
- stack.Push(base)
+ // pop result back on the stack
+ stack.push(base)
case SDIV:
- x, y := S256(stack.Pop()), S256(stack.Pop())
+ x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v / %v", x, y)
@@ -191,9 +183,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
self.Printf(" = %v", base)
- stack.Push(base)
+ stack.push(base)
case MOD:
- x, y := stack.Pop(), stack.Pop()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v %% %v", x, y)
@@ -206,9 +198,9 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
U256(base)
self.Printf(" = %v", base)
- stack.Push(base)
+ stack.push(base)
case SMOD:
- x, y := S256(stack.Pop()), S256(stack.Pop())
+ x, y := S256(stack.pop()), S256(stack.pop())
self.Printf(" %v %% %v", x, y)
@@ -228,25 +220,25 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
self.Printf(" = %v", base)
- stack.Push(base)
+ stack.push(base)
case EXP:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
- self.Printf(" %v ** %v", y, x)
+ self.Printf(" %v ** %v", x, y)
- base.Exp(y, x, Pow256)
+ base.Exp(x, y, Pow256)
U256(base)
self.Printf(" = %v", base)
- stack.Push(base)
+ stack.push(base)
case SIGNEXTEND:
- back := stack.Pop().Uint64()
+ back := stack.pop().Uint64()
if back < 31 {
bit := uint(back*8 + 7)
- num := stack.Pop()
+ num := stack.pop()
mask := new(big.Int).Lsh(ethutil.Big1, bit)
mask.Sub(mask, ethutil.Big1)
if ethutil.BitTest(num, int(bit)) {
@@ -259,91 +251,91 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" = %v", num)
- stack.Push(num)
+ stack.push(num)
}
case NOT:
- base.Sub(Pow256, stack.Pop()).Sub(base, ethutil.Big1)
+ base.Sub(Pow256, stack.pop()).Sub(base, ethutil.Big1)
// Not needed
base = U256(base)
- stack.Push(base)
+ stack.push(base)
case LT:
- x, y := stack.Popn()
- self.Printf(" %v < %v", y, x)
+ x, y := stack.pop(), stack.pop()
+ self.Printf(" %v < %v", x, y)
// x < y
- if y.Cmp(x) < 0 {
- stack.Push(ethutil.BigTrue)
+ if x.Cmp(y) < 0 {
+ stack.push(ethutil.BigTrue)
} else {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
}
case GT:
- x, y := stack.Popn()
- self.Printf(" %v > %v", y, x)
+ x, y := stack.pop(), stack.pop()
+ self.Printf(" %v > %v", x, y)
// x > y
- if y.Cmp(x) > 0 {
- stack.Push(ethutil.BigTrue)
+ if x.Cmp(y) > 0 {
+ stack.push(ethutil.BigTrue)
} else {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
}
case SLT:
- y, x := S256(stack.Pop()), S256(stack.Pop())
- self.Printf(" %v < %v", y, x)
+ x, y := S256(stack.pop()), S256(stack.pop())
+ self.Printf(" %v < %v", x, y)
// x < y
- if y.Cmp(S256(x)) < 0 {
- stack.Push(ethutil.BigTrue)
+ if x.Cmp(S256(y)) < 0 {
+ stack.push(ethutil.BigTrue)
} else {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
}
case SGT:
- y, x := S256(stack.Pop()), S256(stack.Pop())
- self.Printf(" %v > %v", y, x)
+ x, y := S256(stack.pop()), S256(stack.pop())
+ self.Printf(" %v > %v", x, y)
// x > y
- if y.Cmp(x) > 0 {
- stack.Push(ethutil.BigTrue)
+ if x.Cmp(y) > 0 {
+ stack.push(ethutil.BigTrue)
} else {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
}
case EQ:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v == %v", y, x)
// x == y
if x.Cmp(y) == 0 {
- stack.Push(ethutil.BigTrue)
+ stack.push(ethutil.BigTrue)
} else {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
}
case ISZERO:
- x := stack.Pop()
+ x := stack.pop()
if x.Cmp(ethutil.BigFalse) > 0 {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
} else {
- stack.Push(ethutil.BigTrue)
+ stack.push(ethutil.BigTrue)
}
// 0x10 range
case AND:
- x, y := stack.Popn()
+ x, y := stack.pop(), stack.pop()
self.Printf(" %v & %v", y, x)
- stack.Push(base.And(y, x))
+ stack.push(base.And(x, y))
case OR:
- x, y := stack.Popn()
- self.Printf(" %v | %v", y, x)
+ x, y := stack.pop(), stack.pop()
+ self.Printf(" %v | %v", x, y)
- stack.Push(base.Or(y, x))
+ stack.push(base.Or(x, y))
case XOR:
- x, y := stack.Popn()
- self.Printf(" %v ^ %v", y, x)
+ x, y := stack.pop(), stack.pop()
+ self.Printf(" %v ^ %v", x, y)
- stack.Push(base.Xor(y, x))
+ stack.push(base.Xor(x, y))
case BYTE:
- val, th := stack.Popn()
+ th, val := stack.pop(), stack.pop()
if th.Cmp(big.NewInt(32)) < 0 {
byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
@@ -355,12 +347,12 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => 0x%x", base.Bytes())
- stack.Push(base)
+ stack.push(base)
case ADDMOD:
- x := stack.Pop()
- y := stack.Pop()
- z := stack.Pop()
+ x := stack.pop()
+ y := stack.pop()
+ z := stack.pop()
add := new(big.Int).Add(x, y)
if len(z.Bytes()) > 0 { // NOT 0x0
@@ -371,12 +363,12 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" %v + %v %% %v = %v", x, y, z, base)
- stack.Push(base)
+ stack.push(base)
case MULMOD:
- x := stack.Pop()
- y := stack.Pop()
- z := stack.Pop()
+ x := stack.pop()
+ y := stack.pop()
+ z := stack.pop()
mul := new(big.Int).Mul(x, y)
if len(z.Bytes()) > 0 { // NOT 0x0
@@ -387,24 +379,24 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" %v + %v %% %v = %v", x, y, z, base)
- stack.Push(base)
+ stack.push(base)
// 0x20 range
case SHA3:
- size, offset := stack.Popn()
+ size, offset := stack.pop(), stack.pop()
data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64()))
- stack.Push(ethutil.BigD(data))
+ stack.push(ethutil.BigD(data))
self.Printf(" => (%v) %x", size, data)
// 0x30 range
case ADDRESS:
- stack.Push(ethutil.BigD(context.Address()))
+ stack.push(ethutil.BigD(context.Address()))
self.Printf(" => %x", context.Address())
case BALANCE:
- addr := stack.Pop().Bytes()
+ addr := stack.pop().Bytes()
var balance *big.Int
if statedb.GetStateObject(addr) != nil {
balance = statedb.GetBalance(addr)
@@ -412,27 +404,27 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
balance = base
}
- stack.Push(balance)
+ stack.push(balance)
self.Printf(" => %v (%x)", balance, addr)
case ORIGIN:
origin := self.env.Origin()
- stack.Push(ethutil.BigD(origin))
+ stack.push(ethutil.BigD(origin))
self.Printf(" => %x", origin)
case CALLER:
caller := context.caller.Address()
- stack.Push(ethutil.BigD(caller))
+ stack.push(ethutil.BigD(caller))
self.Printf(" => %x", caller)
case CALLVALUE:
- stack.Push(value)
+ stack.push(value)
self.Printf(" => %v", value)
case CALLDATALOAD:
var (
- offset = stack.Pop()
+ offset = stack.pop()
data = make([]byte, 32)
lenData = big.NewInt(int64(len(callData)))
)
@@ -446,18 +438,18 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => 0x%x", data)
- stack.Push(ethutil.BigD(data))
+ stack.push(ethutil.BigD(data))
case CALLDATASIZE:
l := int64(len(callData))
- stack.Push(big.NewInt(l))
+ stack.push(big.NewInt(l))
self.Printf(" => %d", l)
case CALLDATACOPY:
var (
size = uint64(len(callData))
- mOff = stack.Pop().Uint64()
- cOff = stack.Pop().Uint64()
- l = stack.Pop().Uint64()
+ mOff = stack.pop().Uint64()
+ cOff = stack.pop().Uint64()
+ l = stack.pop().Uint64()
)
if cOff > size {
@@ -475,7 +467,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
case CODESIZE, EXTCODESIZE:
var code []byte
if op == EXTCODESIZE {
- addr := stack.Pop().Bytes()
+ addr := stack.pop().Bytes()
code = statedb.GetCode(addr)
} else {
@@ -483,21 +475,21 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
l := big.NewInt(int64(len(code)))
- stack.Push(l)
+ stack.push(l)
self.Printf(" => %d", l)
case CODECOPY, EXTCODECOPY:
var code []byte
if op == EXTCODECOPY {
- code = statedb.GetCode(stack.Pop().Bytes())
+ code = statedb.GetCode(stack.pop().Bytes())
} else {
code = context.Code
}
context := NewContext(nil, nil, code, ethutil.Big0, ethutil.Big0)
var (
- mOff = stack.Pop().Uint64()
- cOff = stack.Pop().Uint64()
- l = stack.Pop().Uint64()
+ mOff = stack.pop().Uint64()
+ cOff = stack.pop().Uint64()
+ l = stack.pop().Uint64()
)
codeCopy := context.GetCode(cOff, l)
@@ -505,80 +497,80 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, codeCopy)
case GASPRICE:
- stack.Push(context.Price)
+ stack.push(context.Price)
self.Printf(" => %x", context.Price)
// 0x40 range
case BLOCKHASH:
- num := stack.Pop()
+ num := stack.pop()
n := new(big.Int).Sub(self.env.BlockNumber(), ethutil.Big257)
if num.Cmp(n) > 0 && num.Cmp(self.env.BlockNumber()) < 0 {
- stack.Push(ethutil.BigD(self.env.GetHash(num.Uint64())))
+ stack.push(ethutil.BigD(self.env.GetHash(num.Uint64())))
} else {
- stack.Push(ethutil.Big0)
+ stack.push(ethutil.Big0)
}
- self.Printf(" => 0x%x", stack.Peek().Bytes())
+ self.Printf(" => 0x%x", stack.peek().Bytes())
case COINBASE:
coinbase := self.env.Coinbase()
- stack.Push(ethutil.BigD(coinbase))
+ stack.push(ethutil.BigD(coinbase))
self.Printf(" => 0x%x", coinbase)
case TIMESTAMP:
time := self.env.Time()
- stack.Push(big.NewInt(time))
+ stack.push(big.NewInt(time))
self.Printf(" => 0x%x", time)
case NUMBER:
number := self.env.BlockNumber()
- stack.Push(U256(number))
+ stack.push(U256(number))
self.Printf(" => 0x%x", number.Bytes())
case DIFFICULTY:
difficulty := self.env.Difficulty()
- stack.Push(difficulty)
+ stack.push(difficulty)
self.Printf(" => 0x%x", difficulty.Bytes())
case GASLIMIT:
self.Printf(" => %v", self.env.GasLimit())
- stack.Push(self.env.GasLimit())
+ stack.push(self.env.GasLimit())
// 0x50 range
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
a := uint64(op - PUSH1 + 1)
byts := context.GetRangeValue(pc+1, a)
- // Push value to stack
- stack.Push(ethutil.BigD(byts))
+ // push value to stack
+ stack.push(ethutil.BigD(byts))
pc += a
step += int(op) - int(PUSH1) + 1
self.Printf(" => 0x%x", byts)
case POP:
- stack.Pop()
+ stack.pop()
case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
n := int(op - DUP1 + 1)
- stack.Dupn(n)
+ stack.dup(n)
- self.Printf(" => [%d] 0x%x", n, stack.Peek().Bytes())
+ self.Printf(" => [%d] 0x%x", n, stack.peek().Bytes())
case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
n := int(op - SWAP1 + 2)
- x, y := stack.Swapn(n)
+ stack.swap(n)
- self.Printf(" => [%d] %x [0] %x", n, x.Bytes(), y.Bytes())
+ self.Printf(" => [%d]", n)
case LOG0, LOG1, LOG2, LOG3, LOG4:
n := int(op - LOG0)
topics := make([][]byte, n)
- mSize, mStart := stack.Popn()
+ mStart, mSize := stack.pop(), stack.pop()
for i := 0; i < n; i++ {
- topics[i] = ethutil.LeftPadBytes(stack.Pop().Bytes(), 32)
+ topics[i] = ethutil.LeftPadBytes(stack.pop().Bytes(), 32)
}
data := mem.Get(mStart.Int64(), mSize.Int64())
@@ -587,41 +579,40 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
self.Printf(" => %v", log)
case MLOAD:
- offset := stack.Pop()
+ offset := stack.pop()
val := ethutil.BigD(mem.Get(offset.Int64(), 32))
- stack.Push(val)
+ stack.push(val)
self.Printf(" => 0x%x", val.Bytes())
case MSTORE: // Store the value at stack top-1 in to memory at location stack top
- // Pop value of the stack
- val, mStart := stack.Popn()
+ // pop value of the stack
+ mStart, val := stack.pop(), stack.pop()
mem.Set(mStart.Uint64(), 32, ethutil.BigToBytes(val, 256))
self.Printf(" => 0x%x", val)
case MSTORE8:
- off := stack.Pop()
- val := stack.Pop()
+ off, val := stack.pop(), stack.pop()
mem.store[off.Int64()] = byte(val.Int64() & 0xff)
self.Printf(" => [%v] 0x%x", off, val)
case SLOAD:
- loc := stack.Pop()
+ loc := stack.pop()
val := ethutil.BigD(statedb.GetState(context.Address(), loc.Bytes()))
- stack.Push(val)
+ stack.push(val)
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
case SSTORE:
- val, loc := stack.Popn()
+ loc, val := stack.pop(), stack.pop()
statedb.SetState(context.Address(), loc.Bytes(), val)
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
case JUMP:
- jump(pc, stack.Pop())
+ jump(pc, stack.pop())
continue
case JUMPI:
- cond, pos := stack.Popn()
+ pos, cond := stack.pop(), stack.pop()
if cond.Cmp(ethutil.BigTrue) >= 0 {
jump(pc, pos)
@@ -633,19 +624,19 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
case JUMPDEST:
case PC:
- stack.Push(big.NewInt(int64(pc)))
+ stack.push(big.NewInt(int64(pc)))
case MSIZE:
- stack.Push(big.NewInt(int64(mem.Len())))
+ stack.push(big.NewInt(int64(mem.Len())))
case GAS:
- stack.Push(context.Gas)
+ stack.push(context.Gas)
self.Printf(" => %x", context.Gas)
// 0x60 range
case CREATE:
var (
- value = stack.Pop()
- size, offset = stack.Popn()
+ value = stack.pop()
+ offset, size = stack.pop(), stack.pop()
input = mem.Get(offset.Int64(), size.Int64())
gas = new(big.Int).Set(context.Gas)
addr []byte
@@ -655,7 +646,7 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
context.UseGas(context.Gas)
ret, suberr, ref := self.env.Create(context, nil, input, gas, price, value)
if suberr != nil {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
self.Printf(" (*) 0x0 %v", suberr)
} else {
@@ -668,23 +659,19 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
addr = ref.Address()
- stack.Push(ethutil.BigD(addr))
+ stack.push(ethutil.BigD(addr))
}
- // Debug hook
- if self.Dbg != nil {
- self.Dbg.SetCode(context.Code)
- }
case CALL, CALLCODE:
- gas := stack.Pop()
- // Pop gas and value of the stack.
- value, addr := stack.Popn()
+ gas := stack.pop()
+ // pop gas and value of the stack.
+ addr, value := stack.pop(), stack.pop()
value = U256(value)
- // Pop input size and offset
- inSize, inOffset := stack.Popn()
- // Pop return size and offset
- retSize, retOffset := stack.Popn()
+ // pop input size and offset
+ inOffset, inSize := stack.pop(), stack.pop()
+ // pop return size and offset
+ retOffset, retSize := stack.pop(), stack.pop()
address := ethutil.Address(addr.Bytes())
self.Printf(" => %x", address).Endl()
@@ -707,30 +694,24 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
}
if err != nil {
- stack.Push(ethutil.BigFalse)
+ stack.push(ethutil.BigFalse)
vmlogger.Debugln(err)
} else {
- stack.Push(ethutil.BigTrue)
+ stack.push(ethutil.BigTrue)
mem.Set(retOffset.Uint64(), retSize.Uint64(), ret)
}
self.Printf("resume %x (%v)", context.Address(), context.Gas)
-
- // Debug hook
- if self.Dbg != nil {
- self.Dbg.SetCode(context.Code)
- }
-
case RETURN:
- size, offset := stack.Popn()
+ offset, size := stack.pop(), stack.pop()
ret := mem.Get(offset.Int64(), size.Int64())
self.Printf(" => [%v, %v] (%d) 0x%x", offset, size, len(ret), ret).Endl()
return context.Return(ret), nil
case SUICIDE:
- receiver := statedb.GetOrNewStateObject(stack.Pop().Bytes())
+ receiver := statedb.GetOrNewStateObject(stack.pop().Bytes())
balance := statedb.GetBalance(context.Address())
self.Printf(" => (%x) %v", receiver.Address()[:4], balance)
@@ -753,117 +734,17 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I
pc++
self.Endl()
-
- if self.Dbg != nil {
- for _, instrNo := range self.Dbg.BreakPoints() {
- if pc == uint64(instrNo) {
- self.Stepping = true
-
- if !self.Dbg.BreakHook(prevStep, op, mem, stack, statedb.GetStateObject(context.Address())) {
- return nil, nil
- }
- } else if self.Stepping {
- if !self.Dbg.StepHook(prevStep, op, mem, stack, statedb.GetStateObject(context.Address())) {
- return nil, nil
- }
- }
- }
- }
-
}
}
-type req struct {
- stack int
- gas *big.Int
-}
-
-var _baseCheck = map[OpCode]req{
- // Req Stack Gas price
- ADD: {2, GasFastestStep},
- LT: {2, GasFastestStep},
- GT: {2, GasFastestStep},
- SLT: {2, GasFastestStep},
- SGT: {2, GasFastestStep},
- EQ: {2, GasFastestStep},
- ISZERO: {1, GasFastestStep},
- SUB: {2, GasFastestStep},
- AND: {2, GasFastestStep},
- OR: {2, GasFastestStep},
- XOR: {2, GasFastestStep},
- NOT: {1, GasFastestStep},
- BYTE: {2, GasFastestStep},
- CALLDATALOAD: {1, GasFastestStep},
- CALLDATACOPY: {3, GasFastestStep},
- MLOAD: {1, GasFastestStep},
- MSTORE: {2, GasFastestStep},
- MSTORE8: {2, GasFastestStep},
- CODECOPY: {3, GasFastestStep},
- MUL: {2, GasFastStep},
- DIV: {2, GasFastStep},
- SDIV: {2, GasFastStep},
- MOD: {2, GasFastStep},
- SMOD: {2, GasFastStep},
- SIGNEXTEND: {2, GasFastStep},
- ADDMOD: {3, GasMidStep},
- MULMOD: {3, GasMidStep},
- JUMP: {1, GasMidStep},
- JUMPI: {2, GasSlowStep},
- EXP: {2, GasSlowStep},
- ADDRESS: {0, GasQuickStep},
- ORIGIN: {0, GasQuickStep},
- CALLER: {0, GasQuickStep},
- CALLVALUE: {0, GasQuickStep},
- CODESIZE: {0, GasQuickStep},
- GASPRICE: {0, GasQuickStep},
- COINBASE: {0, GasQuickStep},
- TIMESTAMP: {0, GasQuickStep},
- NUMBER: {0, GasQuickStep},
- CALLDATASIZE: {0, GasQuickStep},
- DIFFICULTY: {0, GasQuickStep},
- GASLIMIT: {0, GasQuickStep},
- POP: {0, GasQuickStep},
- PC: {0, GasQuickStep},
- MSIZE: {0, GasQuickStep},
- GAS: {0, GasQuickStep},
- BLOCKHASH: {1, GasExtStep},
- BALANCE: {0, GasExtStep},
- EXTCODESIZE: {1, GasExtStep},
- EXTCODECOPY: {4, GasExtStep},
- SLOAD: {1, GasStorageGet},
- SSTORE: {2, Zero},
- SHA3: {1, GasSha3Base},
- CREATE: {3, GasCreate},
- CALL: {7, GasCall},
- CALLCODE: {7, GasCall},
- JUMPDEST: {0, GasJumpDest},
- SUICIDE: {1, Zero},
- RETURN: {2, Zero},
-}
-
-func baseCheck(op OpCode, stack *Stack, gas *big.Int) {
- if r, ok := _baseCheck[op]; ok {
- stack.require(r.stack)
-
- gas.Add(gas, r.gas)
- }
-}
-
-func toWordSize(size *big.Int) *big.Int {
- tmp := new(big.Int)
- tmp.Add(size, u256(31))
- tmp.Div(tmp, u256(32))
- return tmp
-}
-
-func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCode, statedb *state.StateDB, mem *Memory, stack *Stack) (*big.Int, *big.Int) {
+func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCode, statedb *state.StateDB, mem *Memory, stack *stack) (*big.Int, *big.Int) {
var (
gas = new(big.Int)
newMemSize *big.Int = new(big.Int)
)
baseCheck(op, stack, gas)
- // Stack Check, memory resize & gas phase
+ // stack Check, memory resize & gas phase
switch op {
case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
gas.Set(GasFastestStep)
@@ -879,7 +760,7 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
n := int(op - LOG0)
stack.require(n + 2)
- mSize, mStart := stack.Peekn()
+ mSize, mStart := stack.data[stack.len()-2], stack.data[stack.len()-1]
gas.Add(gas, GasLogBase)
gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(n)), GasLogTopic))
@@ -887,12 +768,12 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
newMemSize = calcMemSize(mStart, mSize)
case EXP:
- gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.Len()-2].Bytes()))), GasExpByte))
+ gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.len()-2].Bytes()))), GasExpByte))
case SSTORE:
stack.require(2)
var g *big.Int
- y, x := stack.Peekn()
+ y, x := stack.data[stack.len()-2], stack.data[stack.len()-1]
val := statedb.GetState(context.Address(), x.Bytes())
if len(val) == 0 && len(y.Bytes()) > 0 {
// 0 => non 0
@@ -911,51 +792,51 @@ func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCo
statedb.Refund(self.env.Origin(), RefundSuicide)
}
case MLOAD:
- newMemSize = calcMemSize(stack.Peek(), u256(32))
+ newMemSize = calcMemSize(stack.peek(), u256(32))
case MSTORE8:
- newMemSize = calcMemSize(stack.Peek(), u256(1))
+ newMemSize = calcMemSize(stack.peek(), u256(1))
case MSTORE:
- newMemSize = calcMemSize(stack.Peek(), u256(32))
+ newMemSize = calcMemSize(stack.peek(), u256(32))
case RETURN:
- newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
+ newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
case SHA3:
- newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
+ newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2])
- words := toWordSize(stack.data[stack.Len()-2])
+ words := toWordSize(stack.data[stack.len()-2])
gas.Add(gas, words.Mul(words, GasSha3Word))
case CALLDATACOPY:
- newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
+ newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
- words := toWordSize(stack.data[stack.Len()-3])
+ words := toWordSize(stack.data[stack.len()-3])
gas.Add(gas, words.Mul(words, GasCopyWord))
case CODECOPY:
- newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
+ newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3])
- words := toWordSize(stack.data[stack.Len()-3])
+ words := toWordSize(stack.data[stack.len()-3])
gas.Add(gas, words.Mul(words, GasCopyWord))
case EXTCODECOPY:
- newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-4])
+ newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-4])
- words := toWordSize(stack.data[stack.Len()-4])
+ words := toWordSize(stack.data[stack.len()-4])
gas.Add(gas, words.Mul(words, GasCopyWord))
case CREATE:
- newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-3])
+ newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-3])
case CALL, CALLCODE:
- gas.Add(gas, stack.data[stack.Len()-1])
+ gas.Add(gas, stack.data[stack.len()-1])
if op == CALL {
- if self.env.State().GetStateObject(stack.data[stack.Len()-2].Bytes()) == nil {
+ if self.env.State().GetStateObject(stack.data[stack.len()-2].Bytes()) == nil {
gas.Add(gas, GasCallNewAccount)
}
}
- if len(stack.data[stack.Len()-3].Bytes()) > 0 {
+ if len(stack.data[stack.len()-3].Bytes()) > 0 {
gas.Add(gas, GasCallValueTransfer)
}
- x := calcMemSize(stack.data[stack.Len()-6], stack.data[stack.Len()-7])
- y := calcMemSize(stack.data[stack.Len()-4], stack.data[stack.Len()-5])
+ x := calcMemSize(stack.data[stack.len()-6], stack.data[stack.len()-7])
+ y := calcMemSize(stack.data[stack.len()-4], stack.data[stack.len()-5])
newMemSize = ethutil.BigMax(x, y)
}
generated by cgit (git 2.34.1) at 2024-11-16 23:08:50 +0800