diff options
Diffstat (limited to 'vm/vm.go')
| -rw-r--r-- | vm/vm.go | 518 |
1 files changed, 230 insertions, 288 deletions
@@ -19,8 +19,6 @@ type Vm struct { // For logging debug bool - Dbg Debugger - BreakPoints []int64 Stepping bool Fn string @@ -30,11 +28,8 @@ type Vm struct { func New(env Environment) *Vm { lt := LogTyPretty - if ethutil.Config.Diff { - lt = LogTyDiff - } - return &Vm{debug: false, env: env, logTy: lt, Recoverable: true} + return &Vm{debug: Debug, env: env, logTy: lt, Recoverable: true} } func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.Int, callData []byte) (ret []byte, err error) { @@ -69,10 +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) { @@ -96,7 +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) @@ -104,11 +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) @@ -128,40 +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 { @@ -171,10 +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) @@ -194,9 +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) @@ -209,9 +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) @@ -231,25 +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)) { @@ -262,91 +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()])) @@ -358,12 +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 @@ -374,12 +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 @@ -390,47 +379,52 @@ 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(" => %x", 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() - balance := statedb.GetBalance(addr) + addr := stack.pop().Bytes() + var balance *big.Int + if statedb.GetStateObject(addr) != nil { + balance = statedb.GetBalance(addr) + } else { + 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))) ) @@ -444,18 +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 { @@ -473,7 +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 { @@ -481,21 +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) @@ -503,80 +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()) @@ -585,41 +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) @@ -631,19 +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 @@ -653,7 +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 { @@ -666,24 +659,19 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I } addr = ref.Address() - fmt.Printf("CREATE %X\n", addr) - 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() @@ -691,6 +679,10 @@ func (self *Vm) Run(me, caller ContextRef, code []byte, value, gas, price *big.I // Get the arguments from the memory args := mem.Get(inOffset.Int64(), inSize.Int64()) + if len(value.Bytes()) > 0 { + gas.Add(gas, GasStipend) + } + var ( ret []byte err error @@ -702,35 +694,30 @@ 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) receiver.AddBalance(balance) + statedb.Delete(context.Address()) fallthrough @@ -747,176 +734,131 @@ 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 - } - } - } - } - } } -func (self *Vm) calculateGasAndSize(context *Context, caller ContextRef, op OpCode, statedb *state.StateDB, mem *Memory, stack *Stack) (*big.Int, *big.Int) { - gas := new(big.Int) - addStepGasUsage := func(amount *big.Int) { - if amount.Cmp(ethutil.Big0) >= 0 { - gas.Add(gas, amount) - } - } - - addStepGasUsage(GasStep) +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) - var newMemSize *big.Int = ethutil.Big0 - var additionalGas *big.Int = new(big.Int) - // Stack Check, memory resize & gas phase + // stack Check, memory resize & gas phase switch op { - // Stack checks only - case ISZERO, CALLDATALOAD, POP, JUMP, NOT, EXTCODESIZE, BLOCKHASH: // 1 - stack.require(1) - case JUMPI, ADD, SUB, DIV, MUL, SDIV, MOD, SMOD, LT, GT, SLT, SGT, EQ, AND, OR, XOR, BYTE, SIGNEXTEND: // 2 - stack.require(2) - case ADDMOD, MULMOD: // 3 - stack.require(3) + 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) case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16: n := int(op - SWAP1 + 2) stack.require(n) + gas.Set(GasFastestStep) case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16: n := int(op - DUP1 + 1) stack.require(n) + gas.Set(GasFastestStep) case LOG0, LOG1, LOG2, LOG3, LOG4: n := int(op - LOG0) stack.require(n + 2) - gas.Set(GasLog) - addStepGasUsage(new(big.Int).Mul(big.NewInt(int64(n)), GasLog)) + mSize, mStart := stack.data[stack.len()-2], stack.data[stack.len()-1] - mSize, mStart := stack.Peekn() - addStepGasUsage(mSize) + gas.Add(gas, GasLogBase) + gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(n)), GasLogTopic)) + gas.Add(gas, new(big.Int).Mul(mSize, GasLogByte)) newMemSize = calcMemSize(mStart, mSize) case EXP: - stack.require(2) - - gas.Set(big.NewInt(int64(len(stack.data[stack.Len()-2].Bytes()) + 1))) - // Gas only - case STOP: - gas.Set(ethutil.Big0) - case SUICIDE: - stack.require(1) - - gas.Set(ethutil.Big0) - case SLOAD: - stack.require(1) - - gas.Set(GasSLoad) - // Memory resize & Gas + gas.Add(gas, new(big.Int).Mul(big.NewInt(int64(len(stack.data[stack.len()-2].Bytes()))), GasExpByte)) case SSTORE: stack.require(2) - var mult *big.Int - y, x := stack.Peekn() + var g *big.Int + 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 - mult = ethutil.Big3 + g = GasStorageAdd } else if len(val) > 0 && len(y.Bytes()) == 0 { - statedb.Refund(self.env.Origin(), GasSStoreRefund) + statedb.Refund(self.env.Origin(), RefundStorage) - mult = ethutil.Big0 + g = GasStorageMod } else { // non 0 => non 0 (or 0 => 0) - mult = ethutil.Big1 + g = GasStorageMod + } + gas.Set(g) + case SUICIDE: + if !statedb.IsDeleted(context.Address()) { + statedb.Refund(self.env.Origin(), RefundSuicide) } - gas.Set(new(big.Int).Mul(mult, GasSStore)) - case BALANCE: - stack.require(1) - gas.Set(GasBalance) - case MSTORE: - stack.require(2) - newMemSize = calcMemSize(stack.Peek(), u256(32)) case MLOAD: - stack.require(1) - - newMemSize = calcMemSize(stack.Peek(), u256(32)) + newMemSize = calcMemSize(stack.peek(), u256(32)) case MSTORE8: - stack.require(2) - newMemSize = calcMemSize(stack.Peek(), u256(1)) + newMemSize = calcMemSize(stack.peek(), u256(1)) + case MSTORE: + newMemSize = calcMemSize(stack.peek(), u256(32)) case RETURN: - stack.require(2) - - newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2]) + newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2]) case SHA3: - stack.require(2) - gas.Set(GasSha) - newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2]) - additionalGas.Set(stack.data[stack.Len()-2]) + newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-2]) + + words := toWordSize(stack.data[stack.len()-2]) + gas.Add(gas, words.Mul(words, GasSha3Word)) case CALLDATACOPY: - stack.require(3) + newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3]) - newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3]) - additionalGas.Set(stack.data[stack.Len()-3]) + words := toWordSize(stack.data[stack.len()-3]) + gas.Add(gas, words.Mul(words, GasCopyWord)) case CODECOPY: - stack.require(3) + newMemSize = calcMemSize(stack.peek(), stack.data[stack.len()-3]) - newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3]) - additionalGas.Set(stack.data[stack.Len()-3]) + words := toWordSize(stack.data[stack.len()-3]) + gas.Add(gas, words.Mul(words, GasCopyWord)) case EXTCODECOPY: - stack.require(4) + newMemSize = calcMemSize(stack.data[stack.len()-2], stack.data[stack.len()-4]) - newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-4]) - additionalGas.Set(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]) case CALL, CALLCODE: - stack.require(7) - gas.Set(GasCall) - addStepGasUsage(stack.data[stack.Len()-1]) + gas.Add(gas, stack.data[stack.len()-1]) - x := calcMemSize(stack.data[stack.Len()-6], stack.data[stack.Len()-7]) - y := calcMemSize(stack.data[stack.Len()-4], stack.data[stack.Len()-5]) + if op == CALL { + if self.env.State().GetStateObject(stack.data[stack.len()-2].Bytes()) == nil { + gas.Add(gas, GasCallNewAccount) + } + } - newMemSize = ethutil.BigMax(x, y) - case CREATE: - stack.require(3) - gas.Set(GasCreate) + if len(stack.data[stack.len()-3].Bytes()) > 0 { + gas.Add(gas, GasCallValueTransfer) + } - newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-3]) - } + x := calcMemSize(stack.data[stack.len()-6], stack.data[stack.len()-7]) + y := calcMemSize(stack.data[stack.len()-4], stack.data[stack.len()-5]) - 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) + newMemSize = ethutil.BigMax(x, y) } if newMemSize.Cmp(ethutil.Big0) > 0 { - newMemSize.Add(newMemSize, u256(31)) - newMemSize.Div(newMemSize, u256(32)) - newMemSize.Mul(newMemSize, u256(32)) + newMemSizeWords := toWordSize(newMemSize) + newMemSize.Mul(newMemSizeWords, u256(32)) if newMemSize.Cmp(u256(int64(mem.Len()))) > 0 { - memGasUsage := new(big.Int).Sub(newMemSize, u256(int64(mem.Len()))) - memGasUsage.Mul(GasMemory, memGasUsage) - memGasUsage.Div(memGasUsage, u256(32)) - - addStepGasUsage(memGasUsage) + oldSize := toWordSize(big.NewInt(int64(mem.Len()))) + pow := new(big.Int).Exp(oldSize, ethutil.Big2, Zero) + linCoef := new(big.Int).Mul(oldSize, GasMemWord) + quadCoef := new(big.Int).Div(pow, GasQuadCoeffDenom) + oldTotalFee := new(big.Int).Add(linCoef, quadCoef) + + pow.Exp(newMemSizeWords, ethutil.Big2, Zero) + linCoef = new(big.Int).Mul(newMemSizeWords, GasMemWord) + quadCoef = new(big.Int).Div(pow, GasQuadCoeffDenom) + newTotalFee := new(big.Int).Add(linCoef, quadCoef) + + gas.Add(gas, new(big.Int).Sub(newTotalFee, oldTotalFee)) } - } return newMemSize, gas |