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core, eth/tracer: initialize tracer statedb in CaptureStart (#22333)

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This commit is contained in:
Daniel Liu 2024-04-23 14:35:43 +08:00
parent 5edfd8f9eb
commit 5cb014b60f
13 changed files with 711 additions and 415 deletions
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30
cmd/evm/json_logger.go
View file

@ -33,15 +33,23 @@ type JSONLogger struct {
}
func NewJSONLogger(cfg *vm.LogConfig, writer io.Writer) *JSONLogger {
return &JSONLogger{json.NewEncoder(writer), cfg}
l := &JSONLogger{json.NewEncoder(writer), cfg}
if l.cfg == nil {
l.cfg = &vm.LogConfig{}
}
return l
}
func (l *JSONLogger) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
return nil
func (l *JSONLogger) CaptureStart(env *vm.EVM, from, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
}
func (l *JSONLogger) CaptureFault(*vm.EVM, uint64, vm.OpCode, uint64, uint64, *vm.ScopeContext, int, error) {
}
// CaptureState outputs state information on the logger.
func (l *JSONLogger) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
func (l *JSONLogger) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) {
memory := scope.Memory
stack := scope.Stack
log := vm.StructLog{
Pc: pc,
Op: op,
@ -63,24 +71,20 @@ func (l *JSONLogger) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cos
}
log.Stack = logstack
}
return l.encoder.Encode(log)
}
// CaptureFault outputs state information on the logger.
func (l *JSONLogger) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
return nil
l.encoder.Encode(log)
}
// CaptureEnd is triggered at end of execution.
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {
type endLog struct {
Output string `json:"output"`
GasUsed math.HexOrDecimal64 `json:"gasUsed"`
Time time.Duration `json:"time"`
Err string `json:"error,omitempty"`
}
var errMsg string
if err != nil {
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, err.Error()})
errMsg = err.Error()
}
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, ""})
l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, errMsg})
}

18
core/vm/eips.go
View file

@ -67,9 +67,9 @@ func enable1884(jt *JumpTable) {
}
}
func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
balance, _ := uint256.FromBig(interpreter.evm.StateDB.GetBalance(callContext.contract.Address()))
callContext.stack.push(balance)
func opSelfBalance(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
balance, _ := uint256.FromBig(interpreter.evm.StateDB.GetBalance(scope.Contract.Address()))
scope.Stack.push(balance)
return nil, nil
}
@ -86,9 +86,9 @@ func enable1344(jt *JumpTable) {
}
// opChainID implements CHAINID opcode
func opChainID(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opChainID(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
chainId, _ := uint256.FromBig(interpreter.evm.chainConfig.ChainId)
callContext.stack.push(chainId)
scope.Stack.push(chainId)
return nil, nil
}
@ -149,9 +149,9 @@ func enable3198(jt *JumpTable) {
}
// opBaseFee implements BASEFEE opcode
func opBaseFee(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opBaseFee(pc *uint64, interpreter *EVMInterpreter, callContext *ScopeContext) ([]byte, error) {
baseFee, _ := uint256.FromBig(common.MinGasPrice50x)
callContext.stack.push(baseFee)
callContext.Stack.push(baseFee)
return nil, nil
}
@ -167,7 +167,7 @@ func enable3855(jt *JumpTable) {
}
// opPush0 implements the PUSH0 opcode
func opPush0(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int))
func opPush0(pc *uint64, interpreter *EVMInterpreter, callContext *ScopeContext) ([]byte, error) {
callContext.Stack.push(new(uint256.Int))
return nil, nil
}

6
core/vm/evm.go
View file

@ -248,7 +248,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
if !isPrecompile && evm.chainRules.IsEIP158 && value.Sign() == 0 {
// Calling a non existing account, don't do anything, but ping the tracer
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
evm.vmConfig.Tracer.CaptureEnd(ret, 0, 0, nil)
}
return nil, gas, nil
@ -266,7 +266,7 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
// Capture the tracer start/end events in debug mode
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(caller.Address(), addr, false, input, gas, value)
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), addr, false, input, gas, value)
defer func() { // Lazy evaluation of the parameters
evm.vmConfig.Tracer.CaptureEnd(ret, gas-contract.Gas, time.Since(start), err)
@ -439,7 +439,7 @@ func (evm *EVM) create(caller ContractRef, codeAndHash *codeAndHash, gas uint64,
contract.SetCodeOptionalHash(&address, codeAndHash)
if evm.vmConfig.Debug && evm.depth == 0 {
evm.vmConfig.Tracer.CaptureStart(caller.Address(), address, true, codeAndHash.code, gas, value)
evm.vmConfig.Tracer.CaptureStart(evm, caller.Address(), address, true, codeAndHash.code, gas, value)
}
start := time.Now()

451
core/vm/instructions.go
View file

@ -26,68 +26,68 @@ import (
"golang.org/x/crypto/sha3"
)
func opAdd(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opAdd(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Add(&x, y)
return nil, nil
}
func opSub(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opSub(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Sub(&x, y)
return nil, nil
}
func opMul(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opMul(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Mul(&x, y)
return nil, nil
}
func opDiv(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opDiv(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Div(&x, y)
return nil, nil
}
func opSdiv(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opSdiv(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.SDiv(&x, y)
return nil, nil
}
func opMod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opMod(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Mod(&x, y)
return nil, nil
}
func opSmod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opSmod(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.SMod(&x, y)
return nil, nil
}
func opExp(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
base, exponent := callContext.stack.pop(), callContext.stack.peek()
func opExp(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
base, exponent := scope.Stack.pop(), scope.Stack.peek()
exponent.Exp(&base, exponent)
return nil, nil
}
func opSignExtend(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
back, num := callContext.stack.pop(), callContext.stack.peek()
func opSignExtend(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
back, num := scope.Stack.pop(), scope.Stack.peek()
num.ExtendSign(num, &back)
return nil, nil
}
func opNot(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x := callContext.stack.peek()
func opNot(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x := scope.Stack.peek()
x.Not(x)
return nil, nil
}
func opLt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opLt(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
if x.Lt(y) {
y.SetOne()
} else {
@ -96,8 +96,8 @@ func opLt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte
return nil, nil
}
func opGt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opGt(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
if x.Gt(y) {
y.SetOne()
} else {
@ -106,8 +106,8 @@ func opGt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte
return nil, nil
}
func opSlt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opSlt(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
if x.Slt(y) {
y.SetOne()
} else {
@ -116,8 +116,8 @@ func opSlt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byt
return nil, nil
}
func opSgt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opSgt(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
if x.Sgt(y) {
y.SetOne()
} else {
@ -126,8 +126,8 @@ func opSgt(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byt
return nil, nil
}
func opEq(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opEq(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
if x.Eq(y) {
y.SetOne()
} else {
@ -136,8 +136,8 @@ func opEq(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte
return nil, nil
}
func opIszero(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x := callContext.stack.peek()
func opIszero(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x := scope.Stack.peek()
if x.IsZero() {
x.SetOne()
} else {
@ -146,32 +146,32 @@ func opIszero(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
return nil, nil
}
func opAnd(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opAnd(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.And(&x, y)
return nil, nil
}
func opOr(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opOr(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Or(&x, y)
return nil, nil
}
func opXor(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y := callContext.stack.pop(), callContext.stack.peek()
func opXor(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y := scope.Stack.pop(), scope.Stack.peek()
y.Xor(&x, y)
return nil, nil
}
func opByte(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
th, val := callContext.stack.pop(), callContext.stack.peek()
func opByte(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
th, val := scope.Stack.pop(), scope.Stack.peek()
val.Byte(&th)
return nil, nil
}
func opAddmod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y, z := callContext.stack.pop(), callContext.stack.pop(), callContext.stack.peek()
func opAddmod(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y, z := scope.Stack.pop(), scope.Stack.pop(), scope.Stack.peek()
if z.IsZero() {
z.Clear()
} else {
@ -180,8 +180,8 @@ func opAddmod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
return nil, nil
}
func opMulmod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x, y, z := callContext.stack.pop(), callContext.stack.pop(), callContext.stack.peek()
func opMulmod(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x, y, z := scope.Stack.pop(), scope.Stack.pop(), scope.Stack.peek()
z.MulMod(&x, &y, z)
return nil, nil
}
@ -189,9 +189,9 @@ func opMulmod(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
// opSHL implements Shift Left
// The SHL instruction (shift left) pops 2 values from the stack, first arg1 and then arg2,
// and pushes on the stack arg2 shifted to the left by arg1 number of bits.
func opSHL(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opSHL(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
// Note, second operand is left in the stack; accumulate result into it, and no need to push it afterwards
shift, value := callContext.stack.pop(), callContext.stack.peek()
shift, value := scope.Stack.pop(), scope.Stack.peek()
if shift.LtUint64(256) {
value.Lsh(value, uint(shift.Uint64()))
} else {
@ -203,9 +203,9 @@ func opSHL(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byt
// opSHR implements Logical Shift Right
// The SHR instruction (logical shift right) pops 2 values from the stack, first arg1 and then arg2,
// and pushes on the stack arg2 shifted to the right by arg1 number of bits with zero fill.
func opSHR(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opSHR(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
// Note, second operand is left in the stack; accumulate result into it, and no need to push it afterwards
shift, value := callContext.stack.pop(), callContext.stack.peek()
shift, value := scope.Stack.pop(), scope.Stack.peek()
if shift.LtUint64(256) {
value.Rsh(value, uint(shift.Uint64()))
} else {
@ -217,8 +217,8 @@ func opSHR(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byt
// opSAR implements Arithmetic Shift Right
// The SAR instruction (arithmetic shift right) pops 2 values from the stack, first arg1 and then arg2,
// and pushes on the stack arg2 shifted to the right by arg1 number of bits with sign extension.
func opSAR(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
shift, value := callContext.stack.pop(), callContext.stack.peek()
func opSAR(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
shift, value := scope.Stack.pop(), scope.Stack.peek()
if shift.GtUint64(256) {
if value.Sign() >= 0 {
value.Clear()
@ -233,9 +233,9 @@ func opSAR(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byt
return nil, nil
}
func opKeccak256(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
offset, size := callContext.stack.pop(), callContext.stack.peek()
data := callContext.memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
func opKeccak256(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
offset, size := scope.Stack.pop(), scope.Stack.peek()
data := scope.Memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
if interpreter.hasher == nil {
interpreter.hasher = sha3.NewLegacyKeccak256().(keccakState)
@ -253,37 +253,37 @@ func opKeccak256(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx)
size.SetBytes(interpreter.hasherBuf[:])
return nil, nil
}
func opAddress(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetBytes(callContext.contract.Address().Bytes()))
func opAddress(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetBytes(scope.Contract.Address().Bytes()))
return nil, nil
}
func opBalance(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
slot := callContext.stack.peek()
func opBalance(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
slot := scope.Stack.peek()
address := common.Address(slot.Bytes20())
slot.SetFromBig(interpreter.evm.StateDB.GetBalance(address))
return nil, nil
}
func opOrigin(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetBytes(interpreter.evm.Origin.Bytes()))
func opOrigin(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetBytes(interpreter.evm.Origin.Bytes()))
return nil, nil
}
func opCaller(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetBytes(callContext.contract.Caller().Bytes()))
func opCaller(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetBytes(scope.Contract.Caller().Bytes()))
return nil, nil
}
func opCallValue(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
v, _ := uint256.FromBig(callContext.contract.value)
callContext.stack.push(v)
func opCallValue(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v, _ := uint256.FromBig(scope.Contract.value)
scope.Stack.push(v)
return nil, nil
}
func opCallDataLoad(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
x := callContext.stack.peek()
func opCallDataLoad(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
x := scope.Stack.peek()
if offset, overflow := x.Uint64WithOverflow(); !overflow {
data := getData(callContext.contract.Input, offset, 32)
data := getData(scope.Contract.Input, offset, 32)
x.SetBytes(data)
} else {
x.Clear()
@ -291,16 +291,16 @@ func opCallDataLoad(pc *uint64, interpreter *EVMInterpreter, callContext *callCt
return nil, nil
}
func opCallDataSize(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(uint64(len(callContext.contract.Input))))
func opCallDataSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(uint64(len(scope.Contract.Input))))
return nil, nil
}
func opCallDataCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCallDataCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var (
memOffset = callContext.stack.pop()
dataOffset = callContext.stack.pop()
length = callContext.stack.pop()
memOffset = scope.Stack.pop()
dataOffset = scope.Stack.pop()
length = scope.Stack.pop()
)
dataOffset64, overflow := dataOffset.Uint64WithOverflow()
if overflow {
@ -309,21 +309,21 @@ func opCallDataCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCt
// These values are checked for overflow during gas cost calculation
memOffset64 := memOffset.Uint64()
length64 := length.Uint64()
callContext.memory.Set(memOffset64, length64, getData(callContext.contract.Input, dataOffset64, length64))
scope.Memory.Set(memOffset64, length64, getData(scope.Contract.Input, dataOffset64, length64))
return nil, nil
}
func opReturnDataSize(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(uint64(len(interpreter.returnData))))
func opReturnDataSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(uint64(len(interpreter.returnData))))
return nil, nil
}
func opReturnDataCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opReturnDataCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var (
memOffset = callContext.stack.pop()
dataOffset = callContext.stack.pop()
length = callContext.stack.pop()
memOffset = scope.Stack.pop()
dataOffset = scope.Stack.pop()
length = scope.Stack.pop()
)
offset64, overflow := dataOffset.Uint64WithOverflow()
@ -337,42 +337,42 @@ func opReturnDataCopy(pc *uint64, interpreter *EVMInterpreter, callContext *call
if overflow || uint64(len(interpreter.returnData)) < end64 {
return nil, ErrReturnDataOutOfBounds
}
callContext.memory.Set(memOffset.Uint64(), length.Uint64(), interpreter.returnData[offset64:end64])
scope.Memory.Set(memOffset.Uint64(), length.Uint64(), interpreter.returnData[offset64:end64])
return nil, nil
}
func opExtCodeSize(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
slot := callContext.stack.peek()
func opExtCodeSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
slot := scope.Stack.peek()
slot.SetUint64(uint64(interpreter.evm.StateDB.GetCodeSize(common.Address(slot.Bytes20()))))
return nil, nil
}
func opCodeSize(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCodeSize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
l := new(uint256.Int)
l.SetUint64(uint64(len(callContext.contract.Code)))
callContext.stack.push(l)
l.SetUint64(uint64(len(scope.Contract.Code)))
scope.Stack.push(l)
return nil, nil
}
func opCodeCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var (
memOffset = callContext.stack.pop()
codeOffset = callContext.stack.pop()
length = callContext.stack.pop()
memOffset = scope.Stack.pop()
codeOffset = scope.Stack.pop()
length = scope.Stack.pop()
)
uint64CodeOffset, overflow := codeOffset.Uint64WithOverflow()
if overflow {
uint64CodeOffset = 0xffffffffffffffff
}
codeCopy := getData(callContext.contract.Code, uint64CodeOffset, length.Uint64())
callContext.memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)
codeCopy := getData(scope.Contract.Code, uint64CodeOffset, length.Uint64())
scope.Memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)
return nil, nil
}
func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var (
stack = callContext.stack
stack = scope.Stack
a = stack.pop()
memOffset = stack.pop()
codeOffset = stack.pop()
@ -384,7 +384,7 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx
}
addr := common.Address(a.Bytes20())
codeCopy := getData(interpreter.evm.StateDB.GetCode(addr), uint64CodeOffset, length.Uint64())
callContext.memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)
scope.Memory.Set(memOffset.Uint64(), length.Uint64(), codeCopy)
return nil, nil
}
@ -392,16 +392,21 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx
// opExtCodeHash returns the code hash of a specified account.
// There are several cases when the function is called, while we can relay everything
// to `state.GetCodeHash` function to ensure the correctness.
// (1) Caller tries to get the code hash of a normal contract account, state
//
// (1) Caller tries to get the code hash of a normal contract account, state
//
// should return the relative code hash and set it as the result.
//
// (2) Caller tries to get the code hash of a non-existent account, state should
// (2) Caller tries to get the code hash of a non-existent account, state should
//
// return common.Hash{} and zero will be set as the result.
//
// (3) Caller tries to get the code hash for an account without contract code,
// (3) Caller tries to get the code hash for an account without contract code,
//
// state should return emptyCodeHash(0xc5d246...) as the result.
//
// (4) Caller tries to get the code hash of a precompiled account, the result
// (4) Caller tries to get the code hash of a precompiled account, the result
//
// should be zero or emptyCodeHash.
//
// It is worth noting that in order to avoid unnecessary create and clean,
@ -410,13 +415,15 @@ func opExtCodeCopy(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx
// If the precompile account is not transferred any amount on a private or
// customized chain, the return value will be zero.
//
// (5) Caller tries to get the code hash for an account which is marked as suicided
// (5) Caller tries to get the code hash for an account which is marked as suicided
//
// in the current transaction, the code hash of this account should be returned.
//
// (6) Caller tries to get the code hash for an account which is marked as deleted,
// (6) Caller tries to get the code hash for an account which is marked as deleted,
//
// this account should be regarded as a non-existent account and zero should be returned.
func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
slot := callContext.stack.peek()
func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
slot := scope.Stack.peek()
address := common.Address(slot.Bytes20())
if interpreter.evm.StateDB.Empty(address) {
slot.Clear()
@ -426,14 +433,14 @@ func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx
return nil, nil
}
func opGasprice(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opGasprice(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v, _ := uint256.FromBig(interpreter.evm.GasPrice)
callContext.stack.push(v)
scope.Stack.push(v)
return nil, nil
}
func opBlockhash(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
num := callContext.stack.peek()
func opBlockhash(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
num := scope.Stack.peek()
num64, overflow := num.Uint64WithOverflow()
if overflow {
num.Clear()
@ -454,108 +461,108 @@ func opBlockhash(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx)
return nil, nil
}
func opCoinbase(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetBytes(interpreter.evm.Coinbase.Bytes()))
func opCoinbase(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetBytes(interpreter.evm.Coinbase.Bytes()))
return nil, nil
}
func opTimestamp(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opTimestamp(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v, _ := uint256.FromBig(interpreter.evm.Time)
callContext.stack.push(v)
scope.Stack.push(v)
return nil, nil
}
func opNumber(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opNumber(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v, _ := uint256.FromBig(interpreter.evm.BlockNumber)
callContext.stack.push(v)
scope.Stack.push(v)
return nil, nil
}
func opDifficulty(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opDifficulty(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v, _ := uint256.FromBig(interpreter.evm.Difficulty)
callContext.stack.push(v)
scope.Stack.push(v)
return nil, nil
}
func opRandom(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opRandom(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var v *uint256.Int
if interpreter.evm.Context.Random != nil {
v = new(uint256.Int).SetBytes((interpreter.evm.Context.Random.Bytes()))
} else { // if context random is not set, use emptyCodeHash as default
v = new(uint256.Int).SetBytes(emptyCodeHash.Bytes())
}
callContext.stack.push(v)
scope.Stack.push(v)
return nil, nil
}
func opGasLimit(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(interpreter.evm.GasLimit))
func opGasLimit(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(interpreter.evm.GasLimit))
return nil, nil
}
func opPop(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.pop()
func opPop(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.pop()
return nil, nil
}
func opMload(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
v := callContext.stack.peek()
func opMload(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
v := scope.Stack.peek()
offset := int64(v.Uint64())
v.SetBytes(callContext.memory.GetPtr(offset, 32))
v.SetBytes(scope.Memory.GetPtr(offset, 32))
return nil, nil
}
func opMstore(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opMstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
// pop value of the stack
mStart, val := callContext.stack.pop(), callContext.stack.pop()
callContext.memory.Set32(mStart.Uint64(), &val)
mStart, val := scope.Stack.pop(), scope.Stack.pop()
scope.Memory.Set32(mStart.Uint64(), &val)
return nil, nil
}
func opMstore8(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
off, val := callContext.stack.pop(), callContext.stack.pop()
callContext.memory.store[off.Uint64()] = byte(val.Uint64())
func opMstore8(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
off, val := scope.Stack.pop(), scope.Stack.pop()
scope.Memory.store[off.Uint64()] = byte(val.Uint64())
return nil, nil
}
func opSload(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
loc := callContext.stack.peek()
func opSload(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
loc := scope.Stack.peek()
hash := common.Hash(loc.Bytes32())
val := interpreter.evm.StateDB.GetState(callContext.contract.Address(), hash)
val := interpreter.evm.StateDB.GetState(scope.Contract.Address(), hash)
loc.SetBytes(val.Bytes())
return nil, nil
}
func opSstore(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opSstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
loc := callContext.stack.pop()
val := callContext.stack.pop()
interpreter.evm.StateDB.SetState(callContext.contract.Address(),
loc := scope.Stack.pop()
val := scope.Stack.pop()
interpreter.evm.StateDB.SetState(scope.Contract.Address(),
common.Hash(loc.Bytes32()), common.Hash(val.Bytes32()))
return nil, nil
}
func opJump(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opJump(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if atomic.LoadInt32(&interpreter.evm.abort) != 0 {
return nil, errStopToken
}
pos := callContext.stack.pop()
if !callContext.contract.validJumpdest(&pos) {
pos := scope.Stack.pop()
if !scope.Contract.validJumpdest(&pos) {
return nil, ErrInvalidJump
}
*pc = pos.Uint64() - 1 // pc will be increased by the interpreter loop
return nil, nil
}
func opJumpi(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opJumpi(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if atomic.LoadInt32(&interpreter.evm.abort) != 0 {
return nil, errStopToken
}
pos, cond := callContext.stack.pop(), callContext.stack.pop()
pos, cond := scope.Stack.pop(), scope.Stack.pop()
if !cond.IsZero() {
if !callContext.contract.validJumpdest(&pos) {
if !scope.Contract.validJumpdest(&pos) {
return nil, ErrInvalidJump
}
*pc = pos.Uint64() - 1 // pc will be increased by the interpreter loop
@ -563,34 +570,34 @@ func opJumpi(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]b
return nil, nil
}
func opJumpdest(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opJumpdest(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
return nil, nil
}
func opPc(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(*pc))
func opPc(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(*pc))
return nil, nil
}
func opMsize(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(uint64(callContext.memory.Len())))
func opMsize(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(uint64(scope.Memory.Len())))
return nil, nil
}
func opGas(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.push(new(uint256.Int).SetUint64(callContext.contract.Gas))
func opGas(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.push(new(uint256.Int).SetUint64(scope.Contract.Gas))
return nil, nil
}
func opCreate(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
var (
value = callContext.stack.pop()
offset, size = callContext.stack.pop(), callContext.stack.pop()
input = callContext.memory.GetCopy(int64(offset.Uint64()), int64(size.Uint64()))
gas = callContext.contract.Gas
value = scope.Stack.pop()
offset, size = scope.Stack.pop(), scope.Stack.pop()
input = scope.Memory.GetCopy(int64(offset.Uint64()), int64(size.Uint64()))
gas = scope.Contract.Gas
)
if interpreter.evm.chainRules.IsEIP150 {
gas -= gas / 64
@ -598,8 +605,8 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
// reuse size int for stackvalue
stackvalue := size
callContext.contract.UseGas(gas)
res, addr, returnGas, suberr := interpreter.evm.Create(callContext.contract, input, gas, value.ToBig())
scope.Contract.UseGas(gas)
res, addr, returnGas, suberr := interpreter.evm.Create(scope.Contract, input, gas, value.ToBig())
// Push item on the stack based on the returned error. If the ruleset is
// homestead we must check for CodeStoreOutOfGasError (homestead only
// rule) and treat as an error, if the ruleset is frontier we must
@ -611,8 +618,8 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
} else {
stackvalue.SetBytes(addr.Bytes())
}
callContext.stack.push(&stackvalue)
callContext.contract.Gas += returnGas
scope.Stack.push(&stackvalue)
scope.Contract.Gas += returnGas
if suberr == ErrExecutionReverted {
interpreter.returnData = res // set REVERT data to return data buffer
@ -622,24 +629,24 @@ func opCreate(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]
return nil, nil
}
func opCreate2(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCreate2(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
var (
endowment = callContext.stack.pop()
offset, size = callContext.stack.pop(), callContext.stack.pop()
salt = callContext.stack.pop()
input = callContext.memory.GetCopy(int64(offset.Uint64()), int64(size.Uint64()))
gas = callContext.contract.Gas
endowment = scope.Stack.pop()
offset, size = scope.Stack.pop(), scope.Stack.pop()
salt = scope.Stack.pop()
input = scope.Memory.GetCopy(int64(offset.Uint64()), int64(size.Uint64()))
gas = scope.Contract.Gas
)
// Apply EIP150
gas -= gas / 64
callContext.contract.UseGas(gas)
scope.Contract.UseGas(gas)
// reuse size int for stackvalue
stackvalue := size
res, addr, returnGas, suberr := interpreter.evm.Create2(callContext.contract, input, gas,
res, addr, returnGas, suberr := interpreter.evm.Create2(scope.Contract, input, gas,
endowment.ToBig(), salt.ToBig())
// Push item on the stack based on the returned error.
if suberr != nil {
@ -647,8 +654,8 @@ func opCreate2(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([
} else {
stackvalue.SetBytes(addr.Bytes())
}
callContext.stack.push(&stackvalue)
callContext.contract.Gas += returnGas
scope.Stack.push(&stackvalue)
scope.Contract.Gas += returnGas
if suberr == ErrExecutionReverted {
interpreter.returnData = res // set REVERT data to return data buffer
@ -658,8 +665,8 @@ func opCreate2(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([
return nil, nil
}
func opCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
stack := callContext.stack
func opCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
stack := scope.Stack
// Pop gas. The actual gas in interpreter.evm.callGasTemp.
// We can use this as a temporary value
temp := stack.pop()
@ -668,7 +675,7 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]by
addr, value, inOffset, inSize, retOffset, retSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
toAddr := common.Address(addr.Bytes20())
// Get the arguments from the memory.
args := callContext.memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
args := scope.Memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
if interpreter.readOnly && !value.IsZero() {
return nil, ErrWriteProtection
@ -676,7 +683,7 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]by
if !value.IsZero() {
gas += params.CallStipend
}
ret, returnGas, err := interpreter.evm.Call(callContext.contract, toAddr, args, gas, value.ToBig())
ret, returnGas, err := interpreter.evm.Call(scope.Contract, toAddr, args, gas, value.ToBig())
if err != nil {
temp.Clear()
} else {
@ -685,17 +692,17 @@ func opCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]by
stack.push(&temp)
if err == nil || err == ErrExecutionReverted {
ret = common.CopyBytes(ret)
callContext.memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
scope.Memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
}
callContext.contract.Gas += returnGas
scope.Contract.Gas += returnGas
interpreter.returnData = ret
return ret, nil
}
func opCallCode(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opCallCode(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
// Pop gas. The actual gas is in interpreter.evm.callGasTemp.
stack := callContext.stack
stack := scope.Stack
// We use it as a temporary value
temp := stack.pop()
gas := interpreter.evm.callGasTemp
@ -703,12 +710,12 @@ func opCallCode(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) (
addr, value, inOffset, inSize, retOffset, retSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
toAddr := common.Address(addr.Bytes20())
// Get arguments from the memory.
args := callContext.memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
args := scope.Memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
if !value.IsZero() {
gas += params.CallStipend
}
ret, returnGas, err := interpreter.evm.CallCode(callContext.contract, toAddr, args, gas, value.ToBig())
ret, returnGas, err := interpreter.evm.CallCode(scope.Contract, toAddr, args, gas, value.ToBig())
if err != nil {
temp.Clear()
} else {
@ -717,16 +724,16 @@ func opCallCode(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) (
stack.push(&temp)
if err == nil || err == ErrExecutionReverted {
ret = common.CopyBytes(ret)
callContext.memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
scope.Memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
}
callContext.contract.Gas += returnGas
scope.Contract.Gas += returnGas
interpreter.returnData = ret
return ret, nil
}
func opDelegateCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
stack := callContext.stack
func opDelegateCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
stack := scope.Stack
// Pop gas. The actual gas is in interpreter.evm.callGasTemp.
// We use it as a temporary value
temp := stack.pop()
@ -735,9 +742,9 @@ func opDelegateCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCt
addr, inOffset, inSize, retOffset, retSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
toAddr := common.Address(addr.Bytes20())
// Get arguments from the memory.
args := callContext.memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
args := scope.Memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
ret, returnGas, err := interpreter.evm.DelegateCall(callContext.contract, toAddr, args, gas)
ret, returnGas, err := interpreter.evm.DelegateCall(scope.Contract, toAddr, args, gas)
if err != nil {
temp.Clear()
} else {
@ -746,17 +753,17 @@ func opDelegateCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCt
stack.push(&temp)
if err == nil || err == ErrExecutionReverted {
ret = common.CopyBytes(ret)
callContext.memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
scope.Memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
}
callContext.contract.Gas += returnGas
scope.Contract.Gas += returnGas
interpreter.returnData = ret
return ret, nil
}
func opStaticCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opStaticCall(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
// Pop gas. The actual gas is in interpreter.evm.callGasTemp.
stack := callContext.stack
stack := scope.Stack
// We use it as a temporary value
temp := stack.pop()
gas := interpreter.evm.callGasTemp
@ -764,9 +771,9 @@ func opStaticCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx)
addr, inOffset, inSize, retOffset, retSize := stack.pop(), stack.pop(), stack.pop(), stack.pop(), stack.pop()
toAddr := common.Address(addr.Bytes20())
// Get arguments from the memory.
args := callContext.memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
args := scope.Memory.GetPtr(int64(inOffset.Uint64()), int64(inSize.Uint64()))
ret, returnGas, err := interpreter.evm.StaticCall(callContext.contract, toAddr, args, gas)
ret, returnGas, err := interpreter.evm.StaticCall(scope.Contract, toAddr, args, gas)
if err != nil {
temp.Clear()
} else {
@ -775,45 +782,45 @@ func opStaticCall(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx)
stack.push(&temp)
if err == nil || err == ErrExecutionReverted {
ret = common.CopyBytes(ret)
callContext.memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
scope.Memory.Set(retOffset.Uint64(), retSize.Uint64(), ret)
}
callContext.contract.Gas += returnGas
scope.Contract.Gas += returnGas
interpreter.returnData = ret
return ret, nil
}
func opReturn(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
offset, size := callContext.stack.pop(), callContext.stack.pop()
ret := callContext.memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
func opReturn(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
offset, size := scope.Stack.pop(), scope.Stack.pop()
ret := scope.Memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
return ret, errStopToken
}
func opRevert(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
offset, size := callContext.stack.pop(), callContext.stack.pop()
ret := callContext.memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
func opRevert(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
offset, size := scope.Stack.pop(), scope.Stack.pop()
ret := scope.Memory.GetPtr(int64(offset.Uint64()), int64(size.Uint64()))
interpreter.returnData = ret
return ret, ErrExecutionReverted
}
func opUndefined(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
return nil, &ErrInvalidOpCode{opcode: OpCode(callContext.contract.Code[*pc])}
func opUndefined(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
return nil, &ErrInvalidOpCode{opcode: OpCode(scope.Contract.Code[*pc])}
}
func opStop(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opStop(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
return nil, errStopToken
}
func opSelfdestruct(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opSelfdestruct(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
beneficiary := callContext.stack.pop()
balance := interpreter.evm.StateDB.GetBalance(callContext.contract.Address())
beneficiary := scope.Stack.pop()
balance := interpreter.evm.StateDB.GetBalance(scope.Contract.Address())
interpreter.evm.StateDB.AddBalance(common.Address(beneficiary.Bytes20()), balance)
interpreter.evm.StateDB.Suicide(callContext.contract.Address())
interpreter.evm.StateDB.Suicide(scope.Contract.Address())
return nil, errStopToken
}
@ -821,21 +828,21 @@ func opSelfdestruct(pc *uint64, interpreter *EVMInterpreter, callContext *callCt
// make log instruction function
func makeLog(size int) executionFunc {
return func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if interpreter.readOnly {
return nil, ErrWriteProtection
}
topics := make([]common.Hash, size)
stack := callContext.stack
stack := scope.Stack
mStart, mSize := stack.pop(), stack.pop()
for i := 0; i < size; i++ {
addr := stack.pop()
topics[i] = common.Hash(addr.Bytes32())
}
d := callContext.memory.GetCopy(int64(mStart.Uint64()), int64(mSize.Uint64()))
d := scope.Memory.GetCopy(int64(mStart.Uint64()), int64(mSize.Uint64()))
interpreter.evm.StateDB.AddLog(&types.Log{
Address: callContext.contract.Address(),
Address: scope.Contract.Address(),
Topics: topics,
Data: d,
// This is a non-consensus field, but assigned here because
@ -848,24 +855,24 @@ func makeLog(size int) executionFunc {
}
// opPush1 is a specialized version of pushN
func opPush1(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
func opPush1(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
var (
codeLen = uint64(len(callContext.contract.Code))
codeLen = uint64(len(scope.Contract.Code))
integer = new(uint256.Int)
)
*pc += 1
if *pc < codeLen {
callContext.stack.push(integer.SetUint64(uint64(callContext.contract.Code[*pc])))
scope.Stack.push(integer.SetUint64(uint64(scope.Contract.Code[*pc])))
} else {
callContext.stack.push(integer.Clear())
scope.Stack.push(integer.Clear())
}
return nil, nil
}
// make push instruction function
func makePush(size uint64, pushByteSize int) executionFunc {
return func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
codeLen := len(callContext.contract.Code)
return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
codeLen := len(scope.Contract.Code)
startMin := codeLen
if int(*pc+1) < startMin {
@ -878,8 +885,8 @@ func makePush(size uint64, pushByteSize int) executionFunc {
}
integer := new(uint256.Int)
callContext.stack.push(integer.SetBytes(common.RightPadBytes(
callContext.contract.Code[startMin:endMin], pushByteSize)))
scope.Stack.push(integer.SetBytes(common.RightPadBytes(
scope.Contract.Code[startMin:endMin], pushByteSize)))
*pc += size
return nil, nil
@ -888,8 +895,8 @@ func makePush(size uint64, pushByteSize int) executionFunc {
// make dup instruction function
func makeDup(size int64) executionFunc {
return func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.dup(int(size))
return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.dup(int(size))
return nil, nil
}
}
@ -898,8 +905,8 @@ func makeDup(size int64) executionFunc {
func makeSwap(size int64) executionFunc {
// switch n + 1 otherwise n would be swapped with n
size++
return func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error) {
callContext.stack.swap(int(size))
return func(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
scope.Stack.swap(int(size))
return nil, nil
}
}

18
core/vm/instructions_test.go
View file

@ -107,7 +107,7 @@ func testTwoOperandOp(t *testing.T, tests []TwoOperandTestcase, opFn executionFu
expected := new(uint256.Int).SetBytes(common.Hex2Bytes(test.Expected))
stack.push(x)
stack.push(y)
opFn(&pc, evmInterpreter, &callCtx{nil, stack, nil})
opFn(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
if len(stack.data) != 1 {
t.Errorf("Expected one item on stack after %v, got %d: ", name, len(stack.data))
}
@ -222,7 +222,7 @@ func TestAddMod(t *testing.T) {
stack.push(z)
stack.push(y)
stack.push(x)
opAddmod(&pc, evmInterpreter, &callCtx{nil, stack, nil})
opAddmod(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
actual := stack.pop()
if actual.Cmp(expected) != 0 {
t.Errorf("Testcase %d, expected %x, got %x", i, expected, actual)
@ -244,7 +244,7 @@ func getResult(args []*twoOperandParams, opFn executionFunc) []TwoOperandTestcas
y := new(uint256.Int).SetBytes(common.Hex2Bytes(param.y))
stack.push(x)
stack.push(y)
_, err := opFn(&pc, interpreter, &callCtx{nil, stack, nil})
_, err := opFn(&pc, interpreter, &ScopeContext{nil, stack, nil})
if err != nil {
log.Fatalln(err)
}
@ -308,7 +308,7 @@ func opBenchmark(bench *testing.B, op executionFunc, args ...string) {
a.SetBytes(arg)
stack.push(a)
}
op(&pc, evmInterpreter, &callCtx{nil, stack, nil})
op(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
stack.pop()
}
}
@ -535,13 +535,13 @@ func TestOpMstore(t *testing.T) {
v := "abcdef00000000000000abba000000000deaf000000c0de00100000000133700"
stack.push(new(uint256.Int).SetBytes(common.Hex2Bytes(v)))
stack.push(new(uint256.Int))
opMstore(&pc, evmInterpreter, &callCtx{mem, stack, nil})
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
if got := common.Bytes2Hex(mem.GetCopy(0, 32)); got != v {
t.Fatalf("Mstore fail, got %v, expected %v", got, v)
}
stack.push(new(uint256.Int).SetUint64(0x1))
stack.push(new(uint256.Int))
opMstore(&pc, evmInterpreter, &callCtx{mem, stack, nil})
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
if common.Bytes2Hex(mem.GetCopy(0, 32)) != "0000000000000000000000000000000000000000000000000000000000000001" {
t.Fatalf("Mstore failed to overwrite previous value")
}
@ -565,7 +565,7 @@ func BenchmarkOpMstore(bench *testing.B) {
for i := 0; i < bench.N; i++ {
stack.push(value)
stack.push(memStart)
opMstore(&pc, evmInterpreter, &callCtx{mem, stack, nil})
opMstore(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
}
}
@ -585,7 +585,7 @@ func BenchmarkOpKeccak256(bench *testing.B) {
for i := 0; i < bench.N; i++ {
stack.push(uint256.NewInt(32))
stack.push(start)
opKeccak256(&pc, evmInterpreter, &callCtx{mem, stack, nil})
opKeccak256(&pc, evmInterpreter, &ScopeContext{mem, stack, nil})
}
}
@ -681,7 +681,7 @@ func TestRandom(t *testing.T) {
pc = uint64(0)
evmInterpreter = NewEVMInterpreter(env, env.vmConfig)
)
opRandom(&pc, evmInterpreter, &callCtx{nil, stack, nil})
opRandom(&pc, evmInterpreter, &ScopeContext{nil, stack, nil})
if len(stack.data) != 1 {
t.Errorf("Expected one item on stack after %v, got %d: ", tt.name, len(stack.data))
}

24
core/vm/interpreter.go
View file

@ -60,12 +60,12 @@ type Interpreter interface {
CanRun([]byte) bool
}
// callCtx contains the things that are per-call, such as stack and memory,
// ScopeContext contains the things that are per-call, such as stack and memory,
// but not transients like pc and gas
type callCtx struct {
memory *Memory
stack *Stack
contract *Contract
type ScopeContext struct {
Memory *Memory
Stack *Stack
Contract *Contract
}
// keccakState wraps sha3.state. In addition to the usual hash methods, it also supports
@ -170,10 +170,10 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
op OpCode // current opcode
mem = NewMemory() // bound memory
stack = newstack() // local stack
callContext = &callCtx{
memory: mem,
stack: stack,
contract: contract,
callContext = &ScopeContext{
Memory: mem,
Stack: stack,
Contract: contract,
}
// For optimisation reason we're using uint64 as the program counter.
// It's theoretically possible to go above 2^64. The YP defines the PC
@ -192,9 +192,9 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
defer func() {
if err != nil {
if !logged {
in.cfg.Tracer.CaptureState(in.evm, pcCopy, op, gasCopy, cost, mem, stack, contract, in.evm.depth, err)
in.cfg.Tracer.CaptureState(in.evm, pcCopy, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err)
} else {
in.cfg.Tracer.CaptureFault(in.evm, pcCopy, op, gasCopy, cost, mem, stack, contract, in.evm.depth, err)
in.cfg.Tracer.CaptureFault(in.evm, pcCopy, op, gasCopy, cost, callContext, in.evm.depth, err)
}
}
}()
@ -257,7 +257,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
}
if in.cfg.Debug {
in.cfg.Tracer.CaptureState(in.evm, pc, op, gasCopy, cost, mem, stack, contract, in.evm.depth, err)
in.cfg.Tracer.CaptureState(in.evm, pc, op, gasCopy, cost, callContext, in.returnData, in.evm.depth, err)
logged = true
}

2
core/vm/jump_table.go
View file

@ -21,7 +21,7 @@ import (
)
type (
executionFunc func(pc *uint64, interpreter *EVMInterpreter, callContext *callCtx) ([]byte, error)
executionFunc func(pc *uint64, interpreter *EVMInterpreter, callContext *ScopeContext) ([]byte, error)
gasFunc func(*EVM, *Contract, *Stack, *Memory, uint64) (uint64, error) // last parameter is the requested memory size as a uint64
// memorySizeFunc returns the required size, and whether the operation overflowed a uint64
memorySizeFunc func(*Stack) (size uint64, overflow bool)

93
core/vm/logger.go
View file

@ -18,10 +18,10 @@ package vm
import (
"encoding/hex"
"errors"
"fmt"
"io"
"math/big"
"strings"
"time"
"github.com/XinFinOrg/XDPoSChain/common"
@ -31,8 +31,6 @@ import (
"github.com/XinFinOrg/XDPoSChain/params"
)
var errTraceLimitReached = errors.New("the number of logs reached the specified limit")
// Storage represents a contract's storage.
type Storage map[common.Hash]common.Hash
@ -105,10 +103,10 @@ func (s *StructLog) ErrorString() string {
// Note that reference types are actual VM data structures; make copies
// if you need to retain them beyond the current call.
type Tracer interface {
CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error
CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error
CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error
CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error
CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int)
CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error)
CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error)
CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error)
}
// StructLogger is an EVM state logger and implements Tracer.
@ -137,17 +135,19 @@ func NewStructLogger(cfg *LogConfig) *StructLogger {
}
// CaptureStart implements the Tracer interface to initialize the tracing operation.
func (l *StructLogger) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
return nil
func (l *StructLogger) CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
}
// CaptureState logs a new structured log message and pushes it out to the environment
//
// CaptureState also tracks SSTORE ops to track dirty values.
func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
// CaptureState also tracks SLOAD/SSTORE ops to track storage change.
func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) {
memory := scope.Memory
stack := scope.Stack
contract := scope.Contract
// check if already accumulated the specified number of logs
if l.cfg.Limit != 0 && l.cfg.Limit <= len(l.logs) {
return errTraceLimitReached
return
}
// initialise new changed values storage container for this contract
@ -188,17 +188,15 @@ func (l *StructLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost ui
log := StructLog{pc, op, gas, cost, mem, memory.Len(), stck, storage, depth, env.StateDB.GetRefund(), err}
l.logs = append(l.logs, log)
return nil
}
// CaptureFault implements the Tracer interface to trace an execution fault
// while running an opcode.
func (l *StructLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
return nil
func (l *StructLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) {
}
// CaptureEnd is called after the call finishes to finalize the tracing.
func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {
l.output = output
l.err = err
if l.cfg.Debug {
@ -207,7 +205,6 @@ func (l *StructLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration
fmt.Printf(" error: %v\n", err)
}
}
return nil
}
// StructLogs returns the captured log entries.
@ -261,3 +258,65 @@ func WriteLogs(writer io.Writer, logs []*types.Log) {
fmt.Fprintln(writer)
}
}
type mdLogger struct {
out io.Writer
cfg *LogConfig
}
// NewMarkdownLogger creates a logger which outputs information in a format adapted
// for human readability, and is also a valid markdown table
func NewMarkdownLogger(cfg *LogConfig, writer io.Writer) *mdLogger {
l := &mdLogger{writer, cfg}
if l.cfg == nil {
l.cfg = &LogConfig{}
}
return l
}
func (t *mdLogger) CaptureStart(env *EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
if !create {
fmt.Fprintf(t.out, "From: `%v`\nTo: `%v`\nData: `0x%x`\nGas: `%d`\nValue `%v` wei\n",
from.String(), to.String(),
input, gas, value)
} else {
fmt.Fprintf(t.out, "From: `%v`\nCreate at: `%v`\nData: `0x%x`\nGas: `%d`\nValue `%v` wei\n",
from.String(), to.String(),
input, gas, value)
}
fmt.Fprintf(t.out, `
| Pc | Op | Cost | Stack | RStack | Refund |
|-------|-------------|------|-----------|-----------|---------|
`)
}
// CaptureState also tracks SLOAD/SSTORE ops to track storage change.
func (t *mdLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) {
stack := scope.Stack
fmt.Fprintf(t.out, "| %4d | %10v | %3d |", pc, op, cost)
if !t.cfg.DisableStack {
// format stack
var a []string
for _, elem := range stack.data {
a = append(a, fmt.Sprintf("%v", elem.String()))
}
b := fmt.Sprintf("[%v]", strings.Join(a, ","))
fmt.Fprintf(t.out, "%10v |", b)
}
fmt.Fprintf(t.out, "%10v |", env.StateDB.GetRefund())
fmt.Fprintln(t.out, "")
if err != nil {
fmt.Fprintf(t.out, "Error: %v\n", err)
}
}
func (t *mdLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, depth int, err error) {
fmt.Fprintf(t.out, "\nError: at pc=%d, op=%v: %v\n", pc, op, err)
}
func (t *mdLogger) CaptureEnd(output []byte, gasUsed uint64, tm time.Duration, err error) {
fmt.Fprintf(t.out, "\nOutput: `0x%x`\nConsumed gas: `%d`\nError: `%v`\n",
output, gasUsed, err)
}

21
core/vm/logger_json.go
View file

@ -41,12 +41,16 @@ func NewJSONLogger(cfg *LogConfig, writer io.Writer) *JSONLogger {
return l
}
func (l *JSONLogger) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
return nil
func (l *JSONLogger) CaptureStart(env *EVM, from, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
}
func (l *JSONLogger) CaptureFault(*EVM, uint64, OpCode, uint64, uint64, *ScopeContext, int, error) {}
// CaptureState outputs state information on the logger.
func (l *JSONLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
func (l *JSONLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint64, scope *ScopeContext, rData []byte, depth int, err error) {
memory := scope.Memory
stack := scope.Stack
log := StructLog{
Pc: pc,
Op: op,
@ -69,16 +73,11 @@ func (l *JSONLogger) CaptureState(env *EVM, pc uint64, op OpCode, gas, cost uint
}
log.Stack = logstack
}
return l.encoder.Encode(log)
}
// CaptureFault outputs state information on the logger.
func (l *JSONLogger) CaptureFault(env *EVM, pc uint64, op OpCode, gas, cost uint64, memory *Memory, stack *Stack, contract *Contract, depth int, err error) error {
return l.CaptureState(env, pc, op, gas, cost, memory, stack, contract, depth, err)
l.encoder.Encode(log)
}
// CaptureEnd is triggered at end of execution.
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {
type endLog struct {
Output string `json:"output"`
GasUsed math.HexOrDecimal64 `json:"gasUsed"`
@ -89,5 +88,5 @@ func (l *JSONLogger) CaptureEnd(output []byte, gasUsed uint64, t time.Duration,
if err != nil {
errMsg = err.Error()
}
return l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, errMsg})
l.encoder.Encode(endLog{common.Bytes2Hex(output), math.HexOrDecimal64(gasUsed), t, errMsg})
}

13
core/vm/logger_test.go
View file

@ -52,14 +52,17 @@ func TestStoreCapture(t *testing.T) {
var (
env = NewEVM(Context{}, &dummyStatedb{}, nil, params.TestChainConfig, Config{})
logger = NewStructLogger(nil)
mem = NewMemory()
stack = newstack()
contract = NewContract(&dummyContractRef{}, &dummyContractRef{}, new(big.Int), 0)
scope = &ScopeContext{
Memory: NewMemory(),
Stack: newstack(),
Contract: contract,
}
)
stack.push(uint256.NewInt(1))
stack.push(new(uint256.Int))
scope.Stack.push(uint256.NewInt(1))
scope.Stack.push(new(uint256.Int))
var index common.Hash
logger.CaptureState(env, 0, SSTORE, 0, 0, mem, stack, contract, 0, nil)
logger.CaptureState(env, 0, SSTORE, 0, 0, scope, nil, 0, nil)
if len(logger.changedValues[contract.Address()]) == 0 {
t.Fatalf("expected exactly 1 changed value on address %x, got %d", contract.Address(), len(logger.changedValues[contract.Address()]))
}

171
core/vm/runtime/runtime_test.go
View file

@ -19,6 +19,7 @@ package runtime
import (
"fmt"
"math/big"
"os"
"strings"
"testing"
@ -329,32 +330,161 @@ func TestBlockhash(t *testing.T) {
}
}
// BenchmarkSimpleLoop test a pretty simple loop which loops
// 1M (1 048 575) times.
// Takes about 200 ms
func BenchmarkSimpleLoop(b *testing.B) {
// 0xfffff = 1048575 loops
code := []byte{
byte(vm.PUSH3), 0x0f, 0xff, 0xff,
byte(vm.JUMPDEST), // [ count ]
byte(vm.PUSH1), 1, // [count, 1]
byte(vm.SWAP1), // [1, count]
byte(vm.SUB), // [ count -1 ]
byte(vm.DUP1), // [ count -1 , count-1]
byte(vm.PUSH1), 4, // [count-1, count -1, label]
byte(vm.JUMPI), // [ 0 ]
byte(vm.STOP),
// benchmarkNonModifyingCode benchmarks code, but if the code modifies the
// state, this should not be used, since it does not reset the state between runs.
func benchmarkNonModifyingCode(gas uint64, code []byte, name string, b *testing.B) {
cfg := new(Config)
setDefaults(cfg)
cfg.State, _ = state.New(common.Hash{}, state.NewDatabase(rawdb.NewMemoryDatabase()))
cfg.GasLimit = gas
var (
destination = common.BytesToAddress([]byte("contract"))
vmenv = NewEnv(cfg)
sender = vm.AccountRef(cfg.Origin)
)
cfg.State.CreateAccount(destination)
eoa := common.HexToAddress("E0")
{
cfg.State.CreateAccount(eoa)
cfg.State.SetNonce(eoa, 100)
}
reverting := common.HexToAddress("EE")
{
cfg.State.CreateAccount(reverting)
cfg.State.SetCode(reverting, []byte{
byte(vm.PUSH1), 0x00,
byte(vm.PUSH1), 0x00,
byte(vm.REVERT),
})
}
//cfg.State.CreateAccount(cfg.Origin)
// set the receiver's (the executing contract) code for execution.
cfg.State.SetCode(destination, code)
vmenv.Call(sender, destination, nil, gas, cfg.Value)
b.Run(name, func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
vmenv.Call(sender, destination, nil, gas, cfg.Value)
}
})
}
// BenchmarkSimpleLoop test a pretty simple loop which loops until OOG
// 55 ms
func BenchmarkSimpleLoop(b *testing.B) {
staticCallIdentity := []byte{
byte(vm.JUMPDEST), // [ count ]
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.PUSH1), 0x4, // address of identity
byte(vm.GAS), // gas
byte(vm.STATICCALL),
byte(vm.POP), // pop return value
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
callIdentity := []byte{
byte(vm.JUMPDEST), // [ count ]
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.DUP1), // value
byte(vm.PUSH1), 0x4, // address of identity
byte(vm.GAS), // gas
byte(vm.CALL),
byte(vm.POP), // pop return value
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
callInexistant := []byte{
byte(vm.JUMPDEST), // [ count ]
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.DUP1), // value
byte(vm.PUSH1), 0xff, // address of existing contract
byte(vm.GAS), // gas
byte(vm.CALL),
byte(vm.POP), // pop return value
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
callEOA := []byte{
byte(vm.JUMPDEST), // [ count ]
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.DUP1), // value
byte(vm.PUSH1), 0xE0, // address of EOA
byte(vm.GAS), // gas
byte(vm.CALL),
byte(vm.POP), // pop return value
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
loopingCode := []byte{
byte(vm.JUMPDEST), // [ count ]
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.DUP1), // out insize
byte(vm.DUP1), // in offset
byte(vm.PUSH1), 0x4, // address of identity
byte(vm.GAS), // gas
byte(vm.POP), byte(vm.POP), byte(vm.POP), byte(vm.POP), byte(vm.POP), byte(vm.POP),
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
calllRevertingContractWithInput := []byte{
byte(vm.JUMPDEST), //
// push args for the call
byte(vm.PUSH1), 0, // out size
byte(vm.DUP1), // out offset
byte(vm.PUSH1), 0x20, // in size
byte(vm.PUSH1), 0x00, // in offset
byte(vm.PUSH1), 0x00, // value
byte(vm.PUSH1), 0xEE, // address of reverting contract
byte(vm.GAS), // gas
byte(vm.CALL),
byte(vm.POP), // pop return value
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
//tracer := vm.NewJSONLogger(nil, os.Stdout)
//Execute(code, nil, &Config{
//Execute(loopingCode, nil, &Config{
// EVMConfig: vm.Config{
// Debug: true,
// Tracer: tracer,
// }})
// 100M gas
benchmarkNonModifyingCode(100000000, staticCallIdentity, "staticcall-identity-100M", b)
benchmarkNonModifyingCode(100000000, callIdentity, "call-identity-100M", b)
benchmarkNonModifyingCode(100000000, loopingCode, "loop-100M", b)
benchmarkNonModifyingCode(100000000, callInexistant, "call-nonexist-100M", b)
benchmarkNonModifyingCode(100000000, callEOA, "call-EOA-100M", b)
benchmarkNonModifyingCode(100000000, calllRevertingContractWithInput, "call-reverting-100M", b)
for i := 0; i < b.N; i++ {
Execute(code, nil, nil)
}
//benchmarkNonModifyingCode(10000000, staticCallIdentity, "staticcall-identity-10M", b)
//benchmarkNonModifyingCode(10000000, loopingCode, "loop-10M", b)
}
// TestEip2929Cases contains various testcases that are used for
@ -381,7 +511,8 @@ func TestEip2929Cases(t *testing.T) {
code, ops)
Execute(code, nil, &Config{
EVMConfig: vm.Config{
Debug: false,
Debug: true,
Tracer: vm.NewMarkdownLogger(nil, os.Stdout),
ExtraEips: []int{2929},
},
})

107
eth/tracers/tracer.go
View file

@ -27,6 +27,7 @@ import (
"github.com/XinFinOrg/XDPoSChain/common"
"github.com/XinFinOrg/XDPoSChain/common/hexutil"
"github.com/XinFinOrg/XDPoSChain/core"
"github.com/XinFinOrg/XDPoSChain/core/vm"
"github.com/XinFinOrg/XDPoSChain/crypto"
"github.com/XinFinOrg/XDPoSChain/log"
@ -286,8 +287,6 @@ func (cw *contractWrapper) pushObject(vm *duktape.Context) {
// Tracer provides an implementation of Tracer that evaluates a Javascript
// function for each VM execution step.
type Tracer struct {
inited bool // Flag whether the context was already inited from the EVM
vm *duktape.Context // Javascript VM instance
tracerObject int // Stack index of the tracer JavaScript object
@ -526,7 +525,7 @@ func wrapError(context string, err error) error {
}
// CaptureStart implements the Tracer interface to initialize the tracing operation.
func (jst *Tracer) CaptureStart(from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) error {
func (jst *Tracer) CaptureStart(env *vm.EVM, from common.Address, to common.Address, create bool, input []byte, gas uint64, value *big.Int) {
jst.ctx["type"] = "CALL"
if create {
jst.ctx["type"] = "CREATE"
@ -537,73 +536,75 @@ func (jst *Tracer) CaptureStart(from common.Address, to common.Address, create b
jst.ctx["gas"] = gas
jst.ctx["value"] = value
return nil
// Initialize the context
jst.ctx["block"] = env.Context.BlockNumber.Uint64()
jst.dbWrapper.db = env.StateDB
// Compute intrinsic gas
isHomestead := env.ChainConfig().IsHomestead(env.Context.BlockNumber)
intrinsicGas, err := core.IntrinsicGas(input, nil, jst.ctx["type"] == "CREATE", isHomestead)
if err != nil {
return
}
jst.ctx["intrinsicGas"] = intrinsicGas
}
// CaptureState implements the Tracer interface to trace a single step of VM execution.
func (jst *Tracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
if jst.err == nil {
// Initialize the context if it wasn't done yet
if !jst.inited {
jst.ctx["block"] = env.BlockNumber.Uint64()
jst.inited = true
}
// If tracing was interrupted, set the error and stop
if atomic.LoadUint32(&jst.interrupt) > 0 {
jst.err = jst.reason
return nil
}
jst.opWrapper.op = op
jst.stackWrapper.stack = stack
jst.memoryWrapper.memory = memory
jst.contractWrapper.contract = contract
jst.dbWrapper.db = env.StateDB
*jst.pcValue = uint(pc)
*jst.gasValue = uint(gas)
*jst.costValue = uint(cost)
*jst.depthValue = uint(depth)
*jst.refundValue = uint(env.StateDB.GetRefund())
jst.errorValue = nil
if err != nil {
jst.errorValue = new(string)
*jst.errorValue = err.Error()
}
_, err := jst.call("step", "log", "db")
if err != nil {
jst.err = wrapError("step", err)
}
func (jst *Tracer) CaptureState(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, rData []byte, depth int, err error) {
if jst.err != nil {
return
}
return nil
}
// If tracing was interrupted, set the error and stop
if atomic.LoadUint32(&jst.interrupt) > 0 {
jst.err = jst.reason
return
}
jst.opWrapper.op = op
jst.stackWrapper.stack = scope.Stack
jst.memoryWrapper.memory = scope.Memory
jst.contractWrapper.contract = scope.Contract
// CaptureFault implements the Tracer interface to trace an execution fault
// while running an opcode.
func (jst *Tracer) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, memory *vm.Memory, stack *vm.Stack, contract *vm.Contract, depth int, err error) error {
if jst.err == nil {
// Apart from the error, everything matches the previous invocation
*jst.pcValue = uint(pc)
*jst.gasValue = uint(gas)
*jst.costValue = uint(cost)
*jst.depthValue = uint(depth)
*jst.refundValue = uint(env.StateDB.GetRefund())
jst.errorValue = nil
if err != nil {
jst.errorValue = new(string)
*jst.errorValue = err.Error()
_, err := jst.call("fault", "log", "db")
if err != nil {
jst.err = wrapError("fault", err)
}
}
return nil
if _, err := jst.call("step", "log", "db"); err != nil {
jst.err = wrapError("step", err)
}
}
// CaptureFault implements the Tracer interface to trace an execution fault
func (jst *Tracer) CaptureFault(env *vm.EVM, pc uint64, op vm.OpCode, gas, cost uint64, scope *vm.ScopeContext, depth int, err error) {
if jst.err != nil {
return
}
// Apart from the error, everything matches the previous invocation
jst.errorValue = new(string)
*jst.errorValue = err.Error()
if _, err := jst.call("fault", "log", "db"); err != nil {
jst.err = wrapError("fault", err)
}
}
// CaptureEnd is called after the call finishes to finalize the tracing.
func (jst *Tracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) error {
func (jst *Tracer) CaptureEnd(output []byte, gasUsed uint64, t time.Duration, err error) {
jst.ctx["output"] = output
jst.ctx["gasUsed"] = gasUsed
jst.ctx["time"] = t.String()
jst.ctx["gasUsed"] = gasUsed
if err != nil {
jst.ctx["error"] = err.Error()
}
return nil
}
// GetResult calls the Javascript 'result' function and returns its value, or any accumulated error

172
eth/tracers/tracer_test.go
View file

@ -47,21 +47,150 @@ type dummyStatedb struct {
state.StateDB
}
func (*dummyStatedb) GetRefund() uint64 { return 1337 }
func (*dummyStatedb) GetRefund() uint64 { return 1337 }
func (*dummyStatedb) GetBalance(addr common.Address) *big.Int { return new(big.Int) }
func runTrace(tracer *Tracer) (json.RawMessage, error) {
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
var (
startGas uint64 = 10000
value = big.NewInt(0)
)
contract := vm.NewContract(account{}, account{}, big.NewInt(0), 10000)
contract.Code = []byte{byte(vm.PUSH1), 0x1, byte(vm.PUSH1), 0x1, 0x0}
_, err := env.Interpreter().Run(contract, []byte{}, false)
tracer.CaptureStart(env, contract.Caller(), contract.Address(), false, []byte{}, startGas, value)
ret, err := env.Interpreter().Run(contract, []byte{}, false)
tracer.CaptureEnd(ret, startGas-contract.Gas, 1, err)
if err != nil {
return nil, err
}
return tracer.GetResult()
}
func TestTracer(t *testing.T) {
execTracer := func(code string) []byte {
t.Helper()
tracer, err := New(code)
if err != nil {
t.Fatal(err)
}
ret, err := runTrace(tracer)
if err != nil {
t.Fatal(err)
}
return ret
}
for i, tt := range []struct {
code string
want string
}{
{ // tests that we don't panic on bad arguments to memory access
code: "{depths: [], step: function(log) { this.depths.push(log.memory.slice(-1,-2)); }, fault: function() {}, result: function() { return this.depths; }}",
want: `[{},{},{}]`,
}, { // tests that we don't panic on bad arguments to stack peeks
code: "{depths: [], step: function(log) { this.depths.push(log.stack.peek(-1)); }, fault: function() {}, result: function() { return this.depths; }}",
want: `["0","0","0"]`,
}, { // tests that we don't panic on bad arguments to memory getUint
code: "{ depths: [], step: function(log, db) { this.depths.push(log.memory.getUint(-64));}, fault: function() {}, result: function() { return this.depths; }}",
want: `["0","0","0"]`,
}, { // tests some general counting
code: "{count: 0, step: function() { this.count += 1; }, fault: function() {}, result: function() { return this.count; }}",
want: `3`,
}, { // tests that depth is reported correctly
code: "{depths: [], step: function(log) { this.depths.push(log.stack.length()); }, fault: function() {}, result: function() { return this.depths; }}",
want: `[0,1,2]`,
}, { // tests to-string of opcodes
code: "{opcodes: [], step: function(log) { this.opcodes.push(log.op.toString()); }, fault: function() {}, result: function() { return this.opcodes; }}",
want: `["PUSH1","PUSH1","STOP"]`,
}, { // tests intrinsic gas
code: "{depths: [], step: function() {}, fault: function() {}, result: function(ctx) { return ctx.gasUsed+'.'+ctx.intrinsicGas; }}",
want: `"6.21000"`,
},
} {
if have := execTracer(tt.code); tt.want != string(have) {
t.Errorf("testcase %d: expected return value to be %s got %s\n\tcode: %v", i, tt.want, string(have), tt.code)
}
}
}
func TestHalt(t *testing.T) {
t.Skip("duktape doesn't support abortion")
timeout := errors.New("stahp")
tracer, err := New("{step: function() { while(1); }, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
go func() {
time.Sleep(1 * time.Second)
tracer.Stop(timeout)
}()
if _, err = runTrace(tracer); err.Error() != "stahp in server-side tracer function 'step'" {
t.Errorf("Expected timeout error, got %v", err)
}
}
func TestHaltBetweenSteps(t *testing.T) {
tracer, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
scope := &vm.ScopeContext{
Contract: vm.NewContract(&account{}, &account{}, big.NewInt(0), 0),
}
tracer.CaptureState(env, 0, 0, 0, 0, scope, nil, 0, nil)
timeout := errors.New("stahp")
tracer.Stop(timeout)
tracer.CaptureState(env, 0, 0, 0, 0, scope, nil, 0, nil)
if _, err := tracer.GetResult(); err.Error() != timeout.Error() {
t.Errorf("Expected timeout error, got %v", err)
}
}
// TestNoStepExec tests a regular value transfer (no exec), and accessing the statedb
// in 'result'
func TestNoStepExec(t *testing.T) {
runEmptyTrace := func(tracer *Tracer) (json.RawMessage, error) {
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
startGas := uint64(10000)
contract := vm.NewContract(account{}, account{}, big.NewInt(0), startGas)
tracer.CaptureStart(env, contract.Caller(), contract.Address(), false, []byte{}, startGas, big.NewInt(0))
tracer.CaptureEnd(nil, startGas-contract.Gas, 1, nil)
return tracer.GetResult()
}
execTracer := func(code string) []byte {
t.Helper()
tracer, err := New(code)
if err != nil {
t.Fatal(err)
}
ret, err := runEmptyTrace(tracer)
if err != nil {
t.Fatal(err)
}
return ret
}
for i, tt := range []struct {
code string
want string
}{
{ // tests that we don't panic on accessing the db methods
code: "{depths: [], step: function() {}, fault: function() {}, result: function(ctx, db){ return db.getBalance(ctx.to)} }",
want: `"0"`,
},
} {
if have := execTracer(tt.code); tt.want != string(have) {
t.Errorf("testcase %d: expected return value to be %s got %s\n\tcode: %v", i, tt.want, string(have), tt.code)
}
}
}
// TestRegressionPanicSlice tests that we don't panic on bad arguments to memory access
func TestRegressionPanicSlice(t *testing.T) {
tracer, err := New("{depths: [], step: function(log) { this.depths.push(log.memory.slice(-1,-2)); }, fault: function() {}, result: function() { return this.depths; }}")
@ -139,40 +268,3 @@ func TestOpcodes(t *testing.T) {
t.Errorf("Expected return value to be [\"PUSH1\",\"PUSH1\",\"STOP\"], got %s", string(ret))
}
}
func TestHalt(t *testing.T) {
t.Skip("duktape doesn't support abortion")
timeout := errors.New("stahp")
tracer, err := New("{step: function() { while(1); }, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
go func() {
time.Sleep(1 * time.Second)
tracer.Stop(timeout)
}()
if _, err = runTrace(tracer); err.Error() != "stahp in server-side tracer function 'step'" {
t.Errorf("Expected timeout error, got %v", err)
}
}
func TestHaltBetweenSteps(t *testing.T) {
tracer, err := New("{step: function() {}, fault: function() {}, result: function() { return null; }}")
if err != nil {
t.Fatal(err)
}
env := vm.NewEVM(vm.Context{BlockNumber: big.NewInt(1)}, &dummyStatedb{}, nil, params.TestChainConfig, vm.Config{Debug: true, Tracer: tracer})
contract := vm.NewContract(&account{}, &account{}, big.NewInt(0), 0)
tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
timeout := errors.New("stahp")
tracer.Stop(timeout)
tracer.CaptureState(env, 0, 0, 0, 0, nil, nil, contract, 0, nil)
if _, err := tracer.GetResult(); err.Error() != timeout.Error() {
t.Errorf("Expected timeout error, got %v", err)
}
}