985 lines
22 KiB
Go
985 lines
22 KiB
Go
package vm
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import (
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"fmt"
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"math"
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"math/big"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/state"
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)
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type DebugVm struct {
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env Environment
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logTy byte
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logStr string
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err error
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// Debugging
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Dbg Debugger
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BreakPoints []int64
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Stepping bool
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Fn string
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Recoverable bool
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}
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func NewDebugVm(env Environment) *DebugVm {
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lt := LogTyPretty
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if ethutil.Config.Diff {
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lt = LogTyDiff
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}
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return &DebugVm{env: env, logTy: lt, Recoverable: true}
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}
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func (self *DebugVm) Run(me, caller ClosureRef, code []byte, value, gas, price *big.Int, callData []byte) (ret []byte, err error) {
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self.env.SetDepth(self.env.Depth() + 1)
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msg := self.env.State().Manifest().AddMessage(&state.Message{
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To: me.Address(), From: caller.Address(),
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Input: callData,
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Origin: self.env.Origin(),
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Block: self.env.BlockHash(), Timestamp: self.env.Time(), Coinbase: self.env.Coinbase(), Number: self.env.BlockNumber(),
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Value: value,
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})
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closure := NewClosure(msg, caller, me, code, gas, price)
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if p := Precompiled[string(me.Address())]; p != nil {
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return self.RunPrecompiled(p, callData, closure)
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}
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if self.Recoverable {
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// Recover from any require exception
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defer func() {
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if r := recover(); r != nil {
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self.Endl()
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closure.UseGas(closure.Gas)
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ret = closure.Return(nil)
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err = fmt.Errorf("%v", r)
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}
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}()
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}
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var (
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op OpCode
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destinations = analyseJumpDests(closure.Code)
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mem = NewMemory()
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stack = NewStack()
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pc uint64 = 0
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step = 0
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prevStep = 0
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statedb = self.env.State()
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require = func(m int) {
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if stack.Len() < m {
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panic(fmt.Sprintf("%04v (%v) stack err size = %d, required = %d", pc, op, stack.Len(), m))
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}
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}
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jump = func(from uint64, to *big.Int) {
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p := to.Uint64()
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self.Printf(" ~> %v", to)
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// Return to start
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if p == 0 {
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pc = 0
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} else {
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nop := OpCode(closure.GetOp(p))
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if !(nop == JUMPDEST || destinations[from] != nil) {
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panic(fmt.Sprintf("invalid jump destination (%v) %v", nop, p))
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} else if nop == JUMP || nop == JUMPI {
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panic(fmt.Sprintf("not allowed to JUMP(I) in to JUMP"))
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}
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pc = to.Uint64()
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}
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self.Endl()
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}
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)
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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)
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// Don't bother with the execution if there's no code.
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if len(code) == 0 {
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return closure.Return(nil), nil
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}
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for {
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prevStep = step
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// The base for all big integer arithmetic
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base := new(big.Int)
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step++
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// Get the memory location of pc
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op = closure.GetOp(pc)
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gas := new(big.Int)
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addStepGasUsage := func(amount *big.Int) {
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if amount.Cmp(ethutil.Big0) >= 0 {
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gas.Add(gas, amount)
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}
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}
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addStepGasUsage(GasStep)
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var newMemSize *big.Int = ethutil.Big0
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var additionalGas *big.Int = new(big.Int)
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// Stack Check, memory resize & gas phase
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switch op {
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// Stack checks only
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case ISZERO, CALLDATALOAD, POP, JUMP, NOT: // 1
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require(1)
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case ADD, SUB, DIV, SDIV, MOD, SMOD, LT, GT, SLT, SGT, EQ, AND, OR, XOR, BYTE, SIGNEXTEND: // 2
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require(2)
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case ADDMOD, MULMOD: // 3
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require(3)
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case SWAP1, SWAP2, SWAP3, SWAP4, SWAP5, SWAP6, SWAP7, SWAP8, SWAP9, SWAP10, SWAP11, SWAP12, SWAP13, SWAP14, SWAP15, SWAP16:
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n := int(op - SWAP1 + 2)
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require(n)
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case DUP1, DUP2, DUP3, DUP4, DUP5, DUP6, DUP7, DUP8, DUP9, DUP10, DUP11, DUP12, DUP13, DUP14, DUP15, DUP16:
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n := int(op - DUP1 + 1)
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require(n)
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case LOG0, LOG1, LOG2, LOG3, LOG4:
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n := int(op - LOG0)
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require(n + 2)
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gas.Set(GasLog)
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addStepGasUsage(new(big.Int).Mul(big.NewInt(int64(n)), GasLog))
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mSize, mStart := stack.Peekn()
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addStepGasUsage(mSize)
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newMemSize = calcMemSize(mStart, mSize)
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case EXP:
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require(2)
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gas.Set(big.NewInt(int64(len(stack.data[stack.Len()-2].Bytes()) + 1)))
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// Gas only
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case STOP:
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gas.Set(ethutil.Big0)
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case SUICIDE:
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require(1)
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gas.Set(ethutil.Big0)
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case SLOAD:
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require(1)
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gas.Set(GasSLoad)
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// Memory resize & Gas
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case SSTORE:
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require(2)
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var mult *big.Int
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y, x := stack.Peekn()
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val := statedb.GetState(closure.Address(), x.Bytes())
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if len(val) == 0 && len(y.Bytes()) > 0 {
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// 0 => non 0
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mult = ethutil.Big3
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} else if len(val) > 0 && len(y.Bytes()) == 0 {
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statedb.Refund(caller.Address(), GasSStoreRefund)
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mult = ethutil.Big0
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} else {
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// non 0 => non 0 (or 0 => 0)
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mult = ethutil.Big1
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}
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gas.Set(new(big.Int).Mul(mult, GasSStore))
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case BALANCE:
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require(1)
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gas.Set(GasBalance)
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case MSTORE:
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require(2)
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newMemSize = calcMemSize(stack.Peek(), u256(32))
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case MLOAD:
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require(1)
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newMemSize = calcMemSize(stack.Peek(), u256(32))
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case MSTORE8:
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require(2)
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newMemSize = calcMemSize(stack.Peek(), u256(1))
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case RETURN:
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require(2)
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newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
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case SHA3:
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require(2)
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gas.Set(GasSha)
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newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-2])
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additionalGas.Set(stack.data[stack.Len()-2])
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case CALLDATACOPY:
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require(2)
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newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
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additionalGas.Set(stack.data[stack.Len()-3])
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case CODECOPY:
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require(3)
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newMemSize = calcMemSize(stack.Peek(), stack.data[stack.Len()-3])
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additionalGas.Set(stack.data[stack.Len()-3])
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case EXTCODECOPY:
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require(4)
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newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-4])
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additionalGas.Set(stack.data[stack.Len()-4])
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case CALL, CALLCODE:
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require(7)
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gas.Set(GasCall)
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addStepGasUsage(stack.data[stack.Len()-1])
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x := calcMemSize(stack.data[stack.Len()-6], stack.data[stack.Len()-7])
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y := calcMemSize(stack.data[stack.Len()-4], stack.data[stack.Len()-5])
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newMemSize = ethutil.BigMax(x, y)
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case CREATE:
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require(3)
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gas.Set(GasCreate)
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newMemSize = calcMemSize(stack.data[stack.Len()-2], stack.data[stack.Len()-3])
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}
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switch op {
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case CALLDATACOPY, CODECOPY, EXTCODECOPY:
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additionalGas.Add(additionalGas, u256(31))
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additionalGas.Div(additionalGas, u256(32))
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addStepGasUsage(additionalGas)
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case SHA3:
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additionalGas.Add(additionalGas, u256(31))
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additionalGas.Div(additionalGas, u256(32))
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additionalGas.Mul(additionalGas, GasSha3Byte)
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addStepGasUsage(additionalGas)
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}
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if newMemSize.Cmp(ethutil.Big0) > 0 {
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newMemSize.Add(newMemSize, u256(31))
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newMemSize.Div(newMemSize, u256(32))
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newMemSize.Mul(newMemSize, u256(32))
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if newMemSize.Cmp(u256(int64(mem.Len()))) > 0 {
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memGasUsage := new(big.Int).Sub(newMemSize, u256(int64(mem.Len())))
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memGasUsage.Mul(GasMemory, memGasUsage)
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memGasUsage.Div(memGasUsage, u256(32))
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addStepGasUsage(memGasUsage)
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}
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}
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self.Printf("(pc) %-3d -o- %-14s", pc, op.String())
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self.Printf(" (m) %-4d (s) %-4d (g) %-3v (%v)", mem.Len(), stack.Len(), gas, closure.Gas)
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if !closure.UseGas(gas) {
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self.Endl()
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tmp := new(big.Int).Set(closure.Gas)
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closure.UseGas(closure.Gas)
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return closure.Return(nil), OOG(gas, tmp)
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}
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mem.Resize(newMemSize.Uint64())
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switch op {
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// 0x20 range
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case ADD:
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x, y := stack.Popn()
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self.Printf(" %v + %v", y, x)
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base.Add(y, x)
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U256(base)
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self.Printf(" = %v", base)
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// Pop result back on the stack
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stack.Push(base)
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case SUB:
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x, y := stack.Popn()
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self.Printf(" %v - %v", y, x)
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base.Sub(y, x)
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U256(base)
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self.Printf(" = %v", base)
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// Pop result back on the stack
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stack.Push(base)
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case MUL:
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x, y := stack.Popn()
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self.Printf(" %v * %v", y, x)
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base.Mul(y, x)
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U256(base)
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self.Printf(" = %v", base)
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// Pop result back on the stack
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stack.Push(base)
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case DIV:
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x, y := stack.Pop(), stack.Pop()
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self.Printf(" %v / %v", x, y)
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if y.Cmp(ethutil.Big0) != 0 {
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base.Div(x, y)
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}
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U256(base)
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self.Printf(" = %v", base)
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// Pop result back on the stack
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stack.Push(base)
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case SDIV:
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x, y := S256(stack.Pop()), S256(stack.Pop())
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self.Printf(" %v / %v", x, y)
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if y.Cmp(ethutil.Big0) == 0 {
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base.Set(ethutil.Big0)
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} else {
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n := new(big.Int)
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if new(big.Int).Mul(x, y).Cmp(ethutil.Big0) < 0 {
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n.SetInt64(-1)
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} else {
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n.SetInt64(1)
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}
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base.Div(x.Abs(x), y.Abs(y)).Mul(base, n)
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U256(base)
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}
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self.Printf(" = %v", base)
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stack.Push(base)
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case MOD:
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x, y := stack.Pop(), stack.Pop()
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self.Printf(" %v %% %v", x, y)
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if y.Cmp(ethutil.Big0) == 0 {
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base.Set(ethutil.Big0)
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} else {
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base.Mod(x, y)
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}
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U256(base)
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self.Printf(" = %v", base)
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stack.Push(base)
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case SMOD:
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x, y := S256(stack.Pop()), S256(stack.Pop())
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self.Printf(" %v %% %v", x, y)
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if y.Cmp(ethutil.Big0) == 0 {
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base.Set(ethutil.Big0)
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} else {
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n := new(big.Int)
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if x.Cmp(ethutil.Big0) < 0 {
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n.SetInt64(-1)
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} else {
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n.SetInt64(1)
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}
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base.Mod(x.Abs(x), y.Abs(y)).Mul(base, n)
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U256(base)
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}
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self.Printf(" = %v", base)
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stack.Push(base)
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case EXP:
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x, y := stack.Popn()
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self.Printf(" %v ** %v", y, x)
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base.Exp(y, x, Pow256)
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U256(base)
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self.Printf(" = %v", base)
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stack.Push(base)
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case SIGNEXTEND:
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back := stack.Pop().Uint64()
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if back < 31 {
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bit := uint(back*8 + 7)
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num := stack.Pop()
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mask := new(big.Int).Lsh(ethutil.Big1, bit)
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mask.Sub(mask, ethutil.Big1)
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if ethutil.BitTest(num, int(bit)) {
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num.Or(num, mask.Not(mask))
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} else {
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num.And(num, mask)
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}
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num = U256(num)
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self.Printf(" = %v", num)
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stack.Push(num)
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}
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case NOT:
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base.Sub(Pow256, stack.Pop()).Sub(base, ethutil.Big1)
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|
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// Not needed
|
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//base = U256(base)
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stack.Push(base)
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case LT:
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x, y := stack.Popn()
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self.Printf(" %v < %v", y, x)
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// x < y
|
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if y.Cmp(x) < 0 {
|
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stack.Push(ethutil.BigTrue)
|
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} else {
|
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stack.Push(ethutil.BigFalse)
|
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}
|
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case GT:
|
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x, y := stack.Popn()
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self.Printf(" %v > %v", y, x)
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|
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// x > y
|
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if y.Cmp(x) > 0 {
|
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stack.Push(ethutil.BigTrue)
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} else {
|
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stack.Push(ethutil.BigFalse)
|
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}
|
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|
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case SLT:
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y, x := S256(stack.Pop()), S256(stack.Pop())
|
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self.Printf(" %v < %v", y, x)
|
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// x < y
|
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if y.Cmp(S256(x)) < 0 {
|
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stack.Push(ethutil.BigTrue)
|
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} else {
|
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stack.Push(ethutil.BigFalse)
|
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}
|
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case SGT:
|
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y, x := S256(stack.Pop()), S256(stack.Pop())
|
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self.Printf(" %v > %v", y, x)
|
|
|
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// x > y
|
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if y.Cmp(x) > 0 {
|
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stack.Push(ethutil.BigTrue)
|
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} else {
|
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stack.Push(ethutil.BigFalse)
|
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}
|
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|
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case EQ:
|
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x, y := stack.Popn()
|
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self.Printf(" %v == %v", y, x)
|
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|
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// x == y
|
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if x.Cmp(y) == 0 {
|
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stack.Push(ethutil.BigTrue)
|
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} else {
|
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stack.Push(ethutil.BigFalse)
|
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}
|
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case ISZERO:
|
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x := stack.Pop()
|
|
if x.Cmp(ethutil.BigFalse) > 0 {
|
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stack.Push(ethutil.BigFalse)
|
|
} else {
|
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stack.Push(ethutil.BigTrue)
|
|
}
|
|
|
|
// 0x10 range
|
|
case AND:
|
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x, y := stack.Popn()
|
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self.Printf(" %v & %v", y, x)
|
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|
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stack.Push(base.And(y, x))
|
|
case OR:
|
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x, y := stack.Popn()
|
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self.Printf(" %v | %v", y, x)
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|
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stack.Push(base.Or(y, x))
|
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case XOR:
|
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x, y := stack.Popn()
|
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self.Printf(" %v ^ %v", y, x)
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|
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stack.Push(base.Xor(y, x))
|
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case BYTE:
|
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val, th := stack.Popn()
|
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|
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if th.Cmp(big.NewInt(32)) < 0 {
|
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byt := big.NewInt(int64(ethutil.LeftPadBytes(val.Bytes(), 32)[th.Int64()]))
|
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|
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base.Set(byt)
|
|
} else {
|
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base.Set(ethutil.BigFalse)
|
|
}
|
|
|
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self.Printf(" => 0x%x", base.Bytes())
|
|
|
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stack.Push(base)
|
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case ADDMOD:
|
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|
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x := stack.Pop()
|
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y := stack.Pop()
|
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z := stack.Pop()
|
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|
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base.Add(x, y)
|
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base.Mod(base, z)
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U256(base)
|
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|
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self.Printf(" = %v", base)
|
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|
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stack.Push(base)
|
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case MULMOD:
|
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|
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x := stack.Pop()
|
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y := stack.Pop()
|
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z := stack.Pop()
|
|
|
|
base.Mul(x, y)
|
|
base.Mod(base, z)
|
|
|
|
U256(base)
|
|
|
|
self.Printf(" = %v", base)
|
|
|
|
stack.Push(base)
|
|
|
|
// 0x20 range
|
|
case SHA3:
|
|
size, offset := stack.Popn()
|
|
data := crypto.Sha3(mem.Get(offset.Int64(), size.Int64()))
|
|
|
|
stack.Push(ethutil.BigD(data))
|
|
|
|
self.Printf(" => %x", data)
|
|
// 0x30 range
|
|
case ADDRESS:
|
|
stack.Push(ethutil.BigD(closure.Address()))
|
|
|
|
self.Printf(" => %x", closure.Address())
|
|
case BALANCE:
|
|
|
|
addr := stack.Pop().Bytes()
|
|
balance := statedb.GetBalance(addr)
|
|
|
|
stack.Push(balance)
|
|
|
|
self.Printf(" => %v (%x)", balance, addr)
|
|
case ORIGIN:
|
|
origin := self.env.Origin()
|
|
|
|
stack.Push(ethutil.BigD(origin))
|
|
|
|
self.Printf(" => %x", origin)
|
|
case CALLER:
|
|
caller := closure.caller.Address()
|
|
stack.Push(ethutil.BigD(caller))
|
|
|
|
self.Printf(" => %x", caller)
|
|
case CALLVALUE:
|
|
stack.Push(value)
|
|
|
|
self.Printf(" => %v", value)
|
|
case CALLDATALOAD:
|
|
var (
|
|
offset = stack.Pop()
|
|
data = make([]byte, 32)
|
|
lenData = big.NewInt(int64(len(callData)))
|
|
)
|
|
|
|
if lenData.Cmp(offset) >= 0 {
|
|
length := new(big.Int).Add(offset, ethutil.Big32)
|
|
length = ethutil.BigMin(length, lenData)
|
|
|
|
copy(data, callData[offset.Int64():length.Int64()])
|
|
}
|
|
|
|
self.Printf(" => 0x%x", data)
|
|
|
|
stack.Push(ethutil.BigD(data))
|
|
case CALLDATASIZE:
|
|
l := int64(len(callData))
|
|
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()
|
|
)
|
|
|
|
if cOff > size {
|
|
cOff = 0
|
|
l = 0
|
|
} else if cOff+l > size {
|
|
l = 0
|
|
}
|
|
|
|
code := callData[cOff : cOff+l]
|
|
|
|
mem.Set(mOff, l, code)
|
|
|
|
self.Printf(" => [%v, %v, %v] %x", mOff, cOff, l, callData[cOff:cOff+l])
|
|
case CODESIZE, EXTCODESIZE:
|
|
var code []byte
|
|
if op == EXTCODESIZE {
|
|
addr := stack.Pop().Bytes()
|
|
|
|
code = statedb.GetCode(addr)
|
|
} else {
|
|
code = closure.Code
|
|
}
|
|
|
|
l := big.NewInt(int64(len(code)))
|
|
stack.Push(l)
|
|
|
|
self.Printf(" => %d", l)
|
|
case CODECOPY, EXTCODECOPY:
|
|
var code []byte
|
|
if op == EXTCODECOPY {
|
|
code = statedb.GetCode(stack.Pop().Bytes())
|
|
} else {
|
|
code = closure.Code
|
|
}
|
|
|
|
var (
|
|
size = uint64(len(code))
|
|
mOff = stack.Pop().Uint64()
|
|
cOff = stack.Pop().Uint64()
|
|
l = stack.Pop().Uint64()
|
|
)
|
|
|
|
if cOff > size {
|
|
cOff = 0
|
|
l = 0
|
|
} 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, codeCopy)
|
|
case GASPRICE:
|
|
stack.Push(closure.Price)
|
|
|
|
self.Printf(" => %v", closure.Price)
|
|
|
|
// 0x40 range
|
|
case PREVHASH:
|
|
prevHash := self.env.PrevHash()
|
|
|
|
stack.Push(ethutil.BigD(prevHash))
|
|
|
|
self.Printf(" => 0x%x", prevHash)
|
|
case COINBASE:
|
|
coinbase := self.env.Coinbase()
|
|
|
|
stack.Push(ethutil.BigD(coinbase))
|
|
|
|
self.Printf(" => 0x%x", coinbase)
|
|
case TIMESTAMP:
|
|
time := self.env.Time()
|
|
|
|
stack.Push(big.NewInt(time))
|
|
|
|
self.Printf(" => 0x%x", time)
|
|
case NUMBER:
|
|
number := self.env.BlockNumber()
|
|
|
|
stack.Push(number)
|
|
|
|
self.Printf(" => 0x%x", number.Bytes())
|
|
case DIFFICULTY:
|
|
difficulty := self.env.Difficulty()
|
|
|
|
stack.Push(difficulty)
|
|
|
|
self.Printf(" => 0x%x", difficulty.Bytes())
|
|
case 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 := big.NewInt(int64(op) - int64(PUSH1) + 1)
|
|
a := uint64(op - PUSH1 + 1)
|
|
//pc.Add(pc, ethutil.Big1)
|
|
byts := closure.GetRangeValue(pc+1, a)
|
|
val := ethutil.BigD(byts)
|
|
// Push value to stack
|
|
stack.Push(val)
|
|
pc += a
|
|
//pc.Add(pc, a.Sub(a, big.NewInt(1)))
|
|
|
|
step += int(op) - int(PUSH1) + 1
|
|
|
|
self.Printf(" => 0x%x", byts)
|
|
case 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)
|
|
|
|
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)
|
|
|
|
self.Printf(" => [%d] %x [0] %x", n, x.Bytes(), y.Bytes())
|
|
case LOG0, LOG1, LOG2, LOG3, LOG4:
|
|
n := int(op - LOG0)
|
|
topics := make([][]byte, n)
|
|
mSize, mStart := stack.Popn()
|
|
for i := 0; i < n; i++ {
|
|
topics[i] = ethutil.LeftPadBytes(stack.Pop().Bytes(), 32)
|
|
}
|
|
|
|
data := mem.Geti(mStart.Int64(), mSize.Int64())
|
|
log := &Log{closure.Address(), topics, data}
|
|
self.env.AddLog(log)
|
|
|
|
self.Printf(" => %v", log)
|
|
case MLOAD:
|
|
offset := stack.Pop()
|
|
val := ethutil.BigD(mem.Get(offset.Int64(), 32))
|
|
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()
|
|
mem.Set(mStart.Uint64(), 32, ethutil.BigToBytes(val, 256))
|
|
|
|
self.Printf(" => 0x%x", val)
|
|
case MSTORE8:
|
|
off := stack.Pop()
|
|
val := stack.Pop()
|
|
|
|
mem.store[off.Int64()] = byte(val.Int64() & 0xff)
|
|
|
|
self.Printf(" => [%v] 0x%x", off, val)
|
|
case SLOAD:
|
|
loc := stack.Pop()
|
|
val := ethutil.BigD(statedb.GetState(closure.Address(), loc.Bytes()))
|
|
stack.Push(val)
|
|
|
|
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
|
|
case SSTORE:
|
|
val, loc := stack.Popn()
|
|
statedb.SetState(closure.Address(), loc.Bytes(), val)
|
|
|
|
closure.message.AddStorageChange(loc.Bytes())
|
|
|
|
self.Printf(" {0x%x : 0x%x}", loc.Bytes(), val.Bytes())
|
|
case JUMP:
|
|
jump(pc, stack.Pop())
|
|
|
|
continue
|
|
case JUMPI:
|
|
cond, pos := stack.Popn()
|
|
|
|
if cond.Cmp(ethutil.BigTrue) >= 0 {
|
|
jump(pc, pos)
|
|
|
|
continue
|
|
}
|
|
|
|
case JUMPDEST:
|
|
case PC:
|
|
stack.Push(big.NewInt(int64(pc)))
|
|
case MSIZE:
|
|
stack.Push(big.NewInt(int64(mem.Len())))
|
|
case GAS:
|
|
stack.Push(closure.Gas)
|
|
// 0x60 range
|
|
case CREATE:
|
|
|
|
var (
|
|
err error
|
|
value = stack.Pop()
|
|
size, offset = stack.Popn()
|
|
input = mem.Get(offset.Int64(), size.Int64())
|
|
gas = new(big.Int).Set(closure.Gas)
|
|
|
|
// Snapshot the current stack so we are able to
|
|
// revert back to it later.
|
|
//snapshot = self.env.State().Copy()
|
|
)
|
|
|
|
// Generate a new address
|
|
n := statedb.GetNonce(closure.Address())
|
|
addr := crypto.CreateAddress(closure.Address(), n)
|
|
statedb.SetNonce(closure.Address(), n+1)
|
|
|
|
self.Printf(" (*) %x", addr).Endl()
|
|
|
|
closure.UseGas(closure.Gas)
|
|
|
|
ret, err, ref := self.env.Create(closure, addr, input, gas, price, value)
|
|
if err != nil {
|
|
stack.Push(ethutil.BigFalse)
|
|
|
|
self.Printf("CREATE err %v", err)
|
|
} else {
|
|
// gas < len(ret) * CreateDataGas == NO_CODE
|
|
dataGas := big.NewInt(int64(len(ret)))
|
|
dataGas.Mul(dataGas, GasCreateByte)
|
|
if closure.UseGas(dataGas) {
|
|
ref.SetCode(ret)
|
|
msg.Output = ret
|
|
}
|
|
|
|
stack.Push(ethutil.BigD(addr))
|
|
}
|
|
|
|
self.Endl()
|
|
|
|
// Debug hook
|
|
if self.Dbg != nil {
|
|
self.Dbg.SetCode(closure.Code)
|
|
}
|
|
case CALL, CALLCODE:
|
|
self.Endl()
|
|
|
|
gas := stack.Pop()
|
|
// Pop gas and value of the stack.
|
|
value, addr := stack.Popn()
|
|
// Pop input size and offset
|
|
inSize, inOffset := stack.Popn()
|
|
// Pop return size and offset
|
|
retSize, retOffset := stack.Popn()
|
|
|
|
// Get the arguments from the memory
|
|
args := mem.Get(inOffset.Int64(), inSize.Int64())
|
|
|
|
var (
|
|
ret []byte
|
|
err error
|
|
)
|
|
if op == CALLCODE {
|
|
ret, err = self.env.CallCode(closure, addr.Bytes(), args, gas, price, value)
|
|
} else {
|
|
ret, err = self.env.Call(closure, addr.Bytes(), args, gas, price, value)
|
|
}
|
|
|
|
if err != nil {
|
|
stack.Push(ethutil.BigFalse)
|
|
|
|
vmlogger.Debugln(err)
|
|
} else {
|
|
stack.Push(ethutil.BigTrue)
|
|
msg.Output = ret
|
|
|
|
mem.Set(retOffset.Uint64(), retSize.Uint64(), ret)
|
|
}
|
|
self.Printf("resume %x (%v)", closure.Address(), closure.Gas)
|
|
|
|
// Debug hook
|
|
if self.Dbg != nil {
|
|
self.Dbg.SetCode(closure.Code)
|
|
}
|
|
|
|
case RETURN:
|
|
size, offset := stack.Popn()
|
|
ret := mem.Get(offset.Int64(), size.Int64())
|
|
|
|
self.Printf(" => [%v, %v] (%d) 0x%x", offset, size, len(ret), ret).Endl()
|
|
|
|
return closure.Return(ret), nil
|
|
case SUICIDE:
|
|
receiver := statedb.GetOrNewStateObject(stack.Pop().Bytes())
|
|
balance := statedb.GetBalance(closure.Address())
|
|
|
|
self.Printf(" => (%x) %v", receiver.Address()[:4], balance)
|
|
|
|
receiver.AddAmount(balance)
|
|
statedb.Delete(closure.Address())
|
|
|
|
fallthrough
|
|
case STOP: // Stop the closure
|
|
self.Endl()
|
|
|
|
return closure.Return(nil), nil
|
|
default:
|
|
vmlogger.Debugf("(pc) %-3v Invalid opcode %x\n", pc, op)
|
|
|
|
closure.ReturnGas(big.NewInt(1), nil)
|
|
|
|
return closure.Return(nil), fmt.Errorf("Invalid opcode %x", op)
|
|
}
|
|
|
|
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(closure.Address())) {
|
|
return nil, nil
|
|
}
|
|
} else if self.Stepping {
|
|
if !self.Dbg.StepHook(prevStep, op, mem, stack, statedb.GetStateObject(closure.Address())) {
|
|
return nil, nil
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
func (self *DebugVm) RunPrecompiled(p *PrecompiledAccount, callData []byte, closure *Closure) (ret []byte, err error) {
|
|
gas := p.Gas(len(callData))
|
|
if closure.UseGas(gas) {
|
|
ret = p.Call(callData)
|
|
self.Printf("NATIVE_FUNC => %x", ret)
|
|
self.Endl()
|
|
|
|
return closure.Return(ret), nil
|
|
} else {
|
|
self.Endl()
|
|
|
|
tmp := new(big.Int).Set(closure.Gas)
|
|
|
|
closure.UseGas(closure.Gas)
|
|
|
|
return closure.Return(nil), OOG(gas, tmp)
|
|
}
|
|
}
|
|
|
|
func (self *DebugVm) Printf(format string, v ...interface{}) VirtualMachine {
|
|
if self.logTy == LogTyPretty {
|
|
self.logStr += fmt.Sprintf(format, v...)
|
|
}
|
|
|
|
return self
|
|
}
|
|
|
|
func (self *DebugVm) Endl() VirtualMachine {
|
|
if self.logTy == LogTyPretty {
|
|
vmlogger.Debugln(self.logStr)
|
|
self.logStr = ""
|
|
}
|
|
|
|
return self
|
|
}
|
|
|
|
func (self *DebugVm) Env() Environment {
|
|
return self.env
|
|
}
|