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Merge pull request #3067 from karalabe/vm-avoid-hashing

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cmd, core, internal, light, tests: avoid hashing the code in the VM
pull/3068/head
Péter Szilágyi 8 years ago committed by GitHub
parent d8715fba1a cb84e3f029
commit 0731b44809
17 changed files with 59 additions and 37 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 5
      cmd/evm/main.go
  2. 16
      core/execution.go
  3. 4
      core/state/state_object.go
  4. 7
      core/state/state_test.go
  5. 11
      core/state/statedb.go
  6. 9
      core/state/statedb_test.go
  7. 2
      core/state/sync_test.go
  8. 11
      core/vm/contract.go
  9. 3
      core/vm/environment.go
  10. 2
      core/vm/jit_test.go
  11. 2
      core/vm/logger_test.go
  12. 2
      core/vm/runtime/runtime.go
  13. 9
      core/vm/vm.go
  14. 2
      internal/ethapi/tracer_test.go
  15. 3
      light/state_test.go
  16. 3
      tests/block_test_util.go
  17. 5
      tests/util.go

5
cmd/evm/main.go
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@ -30,6 +30,7 @@ import (
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/logger/glog"
"gopkg.in/urfave/cli.v1"
@ -146,7 +147,9 @@ func run(ctx *cli.Context) error {
)
} else {
receiver := statedb.CreateAccount(common.StringToAddress("receiver"))
receiver.SetCode(common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name)))
code := common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name))
receiver.SetCode(crypto.Keccak256Hash(code), code)
ret, err = vmenv.Call(
sender,
receiver.Address(),

16
core/execution.go
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@ -27,14 +27,14 @@ import (
// Call executes within the given contract
func Call(env vm.Environment, caller vm.ContractRef, addr common.Address, input []byte, gas, gasPrice, value *big.Int) (ret []byte, err error) {
ret, _, err = exec(env, caller, &addr, &addr, input, env.Db().GetCode(addr), gas, gasPrice, value)
ret, _, err = exec(env, caller, &addr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value)
return ret, err
}
// CallCode executes the given address' code as the given contract address
func CallCode(env vm.Environment, caller vm.ContractRef, addr common.Address, input []byte, gas, gasPrice, value *big.Int) (ret []byte, err error) {
callerAddr := caller.Address()
ret, _, err = exec(env, caller, &callerAddr, &addr, input, env.Db().GetCode(addr), gas, gasPrice, value)
ret, _, err = exec(env, caller, &callerAddr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, value)
return ret, err
}
@ -43,13 +43,13 @@ func DelegateCall(env vm.Environment, caller vm.ContractRef, addr common.Address
callerAddr := caller.Address()
originAddr := env.Origin()
callerValue := caller.Value()
ret, _, err = execDelegateCall(env, caller, &originAddr, &callerAddr, &addr, input, env.Db().GetCode(addr), gas, gasPrice, callerValue)
ret, _, err = execDelegateCall(env, caller, &originAddr, &callerAddr, &addr, env.Db().GetCodeHash(addr), input, env.Db().GetCode(addr), gas, gasPrice, callerValue)
return ret, err
}
// Create creates a new contract with the given code
func Create(env vm.Environment, caller vm.ContractRef, code []byte, gas, gasPrice, value *big.Int) (ret []byte, address common.Address, err error) {
ret, address, err = exec(env, caller, nil, nil, nil, code, gas, gasPrice, value)
ret, address, err = exec(env, caller, nil, nil, crypto.Keccak256Hash(code), nil, code, gas, gasPrice, value)
// Here we get an error if we run into maximum stack depth,
// See: https://github.com/ethereum/yellowpaper/pull/131
// and YP definitions for CREATE instruction
@ -59,7 +59,7 @@ func Create(env vm.Environment, caller vm.ContractRef, code []byte, gas, gasPric
return ret, address, err
}
func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.Address, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) {
func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.Address, codeHash common.Hash, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) {
evm := env.Vm()
// Depth check execution. Fail if we're trying to execute above the
// limit.
@ -105,7 +105,7 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A
// EVM. The contract is a scoped environment for this execution context
// only.
contract := vm.NewContract(caller, to, value, gas, gasPrice)
contract.SetCallCode(codeAddr, code)
contract.SetCallCode(codeAddr, codeHash, code)
defer contract.Finalise()
ret, err = evm.Run(contract, input)
@ -135,7 +135,7 @@ func exec(env vm.Environment, caller vm.ContractRef, address, codeAddr *common.A
return ret, addr, err
}
func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toAddr, codeAddr *common.Address, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) {
func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toAddr, codeAddr *common.Address, codeHash common.Hash, input, code []byte, gas, gasPrice, value *big.Int) (ret []byte, addr common.Address, err error) {
evm := env.Vm()
// Depth check execution. Fail if we're trying to execute above the
// limit.
@ -155,7 +155,7 @@ func execDelegateCall(env vm.Environment, caller vm.ContractRef, originAddr, toA
// Iinitialise a new contract and make initialise the delegate values
contract := vm.NewContract(caller, to, value, gas, gasPrice).AsDelegate()
contract.SetCallCode(codeAddr, code)
contract.SetCallCode(codeAddr, codeHash, code)
defer contract.Finalise()
ret, err = evm.Run(contract, input)

4
core/state/state_object.go
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@ -273,9 +273,9 @@ func (self *StateObject) Code(db trie.Database) []byte {
return code
}
func (self *StateObject) SetCode(code []byte) {
func (self *StateObject) SetCode(codeHash common.Hash, code []byte) {
self.code = code
self.data.CodeHash = crypto.Keccak256(code)
self.data.CodeHash = codeHash[:]
self.dirtyCode = true
if self.onDirty != nil {
self.onDirty(self.Address())

7
core/state/state_test.go
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@ -24,6 +24,7 @@ import (
checker "gopkg.in/check.v1"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
)
@ -40,7 +41,7 @@ func (s *StateSuite) TestDump(c *checker.C) {
obj1 := s.state.GetOrNewStateObject(toAddr([]byte{0x01}))
obj1.AddBalance(big.NewInt(22))
obj2 := s.state.GetOrNewStateObject(toAddr([]byte{0x01, 0x02}))
obj2.SetCode([]byte{3, 3, 3, 3, 3, 3, 3})
obj2.SetCode(crypto.Keccak256Hash([]byte{3, 3, 3, 3, 3, 3, 3}), []byte{3, 3, 3, 3, 3, 3, 3})
obj3 := s.state.GetOrNewStateObject(toAddr([]byte{0x02}))
obj3.SetBalance(big.NewInt(44))
@ -148,7 +149,7 @@ func TestSnapshot2(t *testing.T) {
so0 := state.GetStateObject(stateobjaddr0)
so0.SetBalance(big.NewInt(42))
so0.SetNonce(43)
so0.SetCode([]byte{'c', 'a', 'f', 'e'})
so0.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e'}), []byte{'c', 'a', 'f', 'e'})
so0.remove = false
so0.deleted = false
state.SetStateObject(so0)
@ -160,7 +161,7 @@ func TestSnapshot2(t *testing.T) {
so1 := state.GetStateObject(stateobjaddr1)
so1.SetBalance(big.NewInt(52))
so1.SetNonce(53)
so1.SetCode([]byte{'c', 'a', 'f', 'e', '2'})
so1.SetCode(crypto.Keccak256Hash([]byte{'c', 'a', 'f', 'e', '2'}), []byte{'c', 'a', 'f', 'e', '2'})
so1.remove = true
so1.deleted = true
state.SetStateObject(so1)

11
core/state/statedb.go
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@ -24,6 +24,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/logger/glog"
@ -246,6 +247,14 @@ func (self *StateDB) GetCodeSize(addr common.Address) int {
return size
}
func (self *StateDB) GetCodeHash(addr common.Address) common.Hash {
stateObject := self.GetStateObject(addr)
if stateObject == nil {
return common.Hash{}
}
return common.BytesToHash(stateObject.CodeHash())
}
func (self *StateDB) GetState(a common.Address, b common.Hash) common.Hash {
stateObject := self.GetStateObject(a)
if stateObject != nil {
@ -283,7 +292,7 @@ func (self *StateDB) SetNonce(addr common.Address, nonce uint64) {
func (self *StateDB) SetCode(addr common.Address, code []byte) {
stateObject := self.GetOrNewStateObject(addr)
if stateObject != nil {
stateObject.SetCode(code)
stateObject.SetCode(crypto.Keccak256Hash(code), code)
}
}

9
core/state/statedb_test.go
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@ -21,6 +21,7 @@ import (
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
)
@ -40,7 +41,7 @@ func TestUpdateLeaks(t *testing.T) {
obj.SetState(common.BytesToHash([]byte{i, i, i}), common.BytesToHash([]byte{i, i, i, i}))
}
if i%3 == 0 {
obj.SetCode([]byte{i, i, i, i, i})
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i}), []byte{i, i, i, i, i})
}
state.UpdateStateObject(obj)
}
@ -70,7 +71,7 @@ func TestIntermediateLeaks(t *testing.T) {
obj.SetState(common.BytesToHash([]byte{i, i, i, 0}), common.BytesToHash([]byte{i, i, i, i, 0}))
}
if i%3 == 0 {
obj.SetCode([]byte{i, i, i, i, i, 0})
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i, 0}), []byte{i, i, i, i, i, 0})
}
transState.UpdateStateObject(obj)
@ -82,7 +83,7 @@ func TestIntermediateLeaks(t *testing.T) {
obj.SetState(common.BytesToHash([]byte{i, i, i, 1}), common.BytesToHash([]byte{i, i, i, i, 1}))
}
if i%3 == 0 {
obj.SetCode([]byte{i, i, i, i, i, 1})
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i, 1}), []byte{i, i, i, i, i, 1})
}
transState.UpdateStateObject(obj)
@ -94,7 +95,7 @@ func TestIntermediateLeaks(t *testing.T) {
obj.SetState(common.BytesToHash([]byte{i, i, i, 1}), common.BytesToHash([]byte{i, i, i, i, 1}))
}
if i%3 == 0 {
obj.SetCode([]byte{i, i, i, i, i, 1})
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i, 1}), []byte{i, i, i, i, i, 1})
}
finalState.UpdateStateObject(obj)
}

2
core/state/sync_test.go
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@ -54,7 +54,7 @@ func makeTestState() (ethdb.Database, common.Hash, []*testAccount) {
acc.nonce = uint64(42 * i)
if i%3 == 0 {
obj.SetCode([]byte{i, i, i, i, i})
obj.SetCode(crypto.Keccak256Hash([]byte{i, i, i, i, i}), []byte{i, i, i, i, i})
acc.code = []byte{i, i, i, i, i}
}
state.UpdateStateObject(obj)

11
core/vm/contract.go
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@ -27,7 +27,7 @@ type ContractRef interface {
ReturnGas(*big.Int, *big.Int)
Address() common.Address
Value() *big.Int
SetCode([]byte)
SetCode(common.Hash, []byte)
ForEachStorage(callback func(key, value common.Hash) bool)
}
@ -44,8 +44,9 @@ type Contract struct {
jumpdests destinations // result of JUMPDEST analysis.
Code []byte
Input []byte
CodeHash common.Hash
CodeAddr *common.Address
Input []byte
value, Gas, UsedGas, Price *big.Int
@ -143,14 +144,16 @@ func (c *Contract) Value() *big.Int {
}
// SetCode sets the code to the contract
func (self *Contract) SetCode(code []byte) {
func (self *Contract) SetCode(hash common.Hash, code []byte) {
self.Code = code
self.CodeHash = hash
}
// SetCallCode sets the code of the contract and address of the backing data
// object
func (self *Contract) SetCallCode(addr *common.Address, code []byte) {
func (self *Contract) SetCallCode(addr *common.Address, hash common.Hash, code []byte) {
self.Code = code
self.CodeHash = hash
self.CodeAddr = addr
}

3
core/vm/environment.go
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@ -94,6 +94,7 @@ type Database interface {
GetNonce(common.Address) uint64
SetNonce(common.Address, uint64)
GetCodeHash(common.Address) common.Hash
GetCodeSize(common.Address) int
GetCode(common.Address) []byte
SetCode(common.Address, []byte)
@ -118,7 +119,7 @@ type Account interface {
Balance() *big.Int
Address() common.Address
ReturnGas(*big.Int, *big.Int)
SetCode([]byte)
SetCode(common.Hash, []byte)
ForEachStorage(cb func(key, value common.Hash) bool)
Value() *big.Int
}

2
core/vm/jit_test.go
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@ -135,7 +135,7 @@ func (account) SetNonce(uint64) {}
func (account) Balance() *big.Int { return nil }
func (account) Address() common.Address { return common.Address{} }
func (account) ReturnGas(*big.Int, *big.Int) {}
func (account) SetCode([]byte) {}
func (account) SetCode(common.Hash, []byte) {}
func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
func runVmBench(test vmBench, b *testing.B) {

2
core/vm/logger_test.go
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@ -30,7 +30,7 @@ type dummyContractRef struct {
func (dummyContractRef) ReturnGas(*big.Int, *big.Int) {}
func (dummyContractRef) Address() common.Address { return common.Address{} }
func (dummyContractRef) Value() *big.Int { return new(big.Int) }
func (dummyContractRef) SetCode([]byte) {}
func (dummyContractRef) SetCode(common.Hash, []byte) {}
func (d *dummyContractRef) ForEachStorage(callback func(key, value common.Hash) bool) {
d.calledForEach = true
}

2
core/vm/runtime/runtime.go
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@ -104,7 +104,7 @@ func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) {
receiver = cfg.State.CreateAccount(common.StringToAddress("contract"))
)
// set the receiver's (the executing contract) code for execution.
receiver.SetCode(code)
receiver.SetCode(crypto.Keccak256Hash(code), code)
// Call the code with the given configuration.
ret, err := vmenv.Call(

9
core/vm/vm.go
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@ -71,10 +71,11 @@ func (evm *EVM) Run(contract *Contract, input []byte) (ret []byte, err error) {
return nil, nil
}
var (
codehash = crypto.Keccak256Hash(contract.Code) // codehash is used when doing jump dest caching
program *Program
)
codehash := contract.CodeHash // codehash is used when doing jump dest caching
if codehash == (common.Hash{}) {
codehash = crypto.Keccak256Hash(contract.Code)
}
var program *Program
if evm.cfg.EnableJit {
// If the JIT is enabled check the status of the JIT program,
// if it doesn't exist compile a new program in a separate

2
internal/ethapi/tracer_test.go
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@ -93,7 +93,7 @@ func (account) SetNonce(uint64) {}
func (account) Balance() *big.Int { return nil }
func (account) Address() common.Address { return common.Address{} }
func (account) ReturnGas(*big.Int, *big.Int) {}
func (account) SetCode([]byte) {}
func (account) SetCode(common.Hash, []byte) {}
func (account) ForEachStorage(cb func(key, value common.Hash) bool) {}
func runTrace(tracer *JavascriptTracer) (interface{}, error) {

3
light/state_test.go
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@ -23,6 +23,7 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/trie"
"golang.org/x/net/context"
@ -60,7 +61,7 @@ func makeTestState() (common.Hash, ethdb.Database) {
so.SetNonce(100)
}
so.AddBalance(big.NewInt(int64(i)))
so.SetCode([]byte{i, i, i})
so.SetCode(crypto.Keccak256Hash([]byte{i, i, i}), []byte{i, i, i})
so.UpdateRoot(sdb)
st.UpdateStateObject(so)
}

3
tests/block_test_util.go
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@ -31,6 +31,7 @@ import (
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/logger/glog"
@ -219,7 +220,7 @@ func (t *BlockTest) InsertPreState(db ethdb.Database) (*state.StateDB, error) {
return nil, err
}
obj := statedb.CreateAccount(common.HexToAddress(addrString))
obj.SetCode(code)
obj.SetCode(crypto.Keccak256Hash(code), code)
obj.SetBalance(balance)
obj.SetNonce(nonce)
for k, v := range acct.Storage {

5
tests/util.go
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@ -108,12 +108,13 @@ func StateObjectFromAccount(db ethdb.Database, addr string, account Account, onD
account.Code = account.Code[2:]
}
code := common.Hex2Bytes(account.Code)
codeHash := crypto.Keccak256Hash(code)
obj := state.NewObject(common.HexToAddress(addr), state.Account{
Balance: common.Big(account.Balance),
CodeHash: crypto.Keccak256(code),
CodeHash: codeHash[:],
Nonce: common.Big(account.Nonce).Uint64(),
}, onDirty)
obj.SetCode(code)
obj.SetCode(codeHash, code)
return obj
}

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