2014-11-10 02:47:37 -08:00
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/*
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This file is part of go-ethereum
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go-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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go-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @authors
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* Jeffrey Wilcke <i@jev.io>
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* @date 2014
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*
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*/
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package main
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import (
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"flag"
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"fmt"
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"log"
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"math/big"
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"os"
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"runtime"
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"time"
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2014-12-04 02:30:41 -08:00
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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2014-11-10 03:42:16 -08:00
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"github.com/ethereum/go-ethereum/ethdb"
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2014-11-10 02:47:37 -08:00
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"github.com/ethereum/go-ethereum/ethutil"
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"github.com/ethereum/go-ethereum/logger"
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"github.com/ethereum/go-ethereum/state"
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"github.com/ethereum/go-ethereum/trie"
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"github.com/ethereum/go-ethereum/vm"
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)
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var (
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code = flag.String("code", "", "evm code")
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loglevel = flag.Int("log", 4, "log level")
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gas = flag.String("gas", "1000000000", "gas amount")
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price = flag.String("price", "0", "gas price")
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value = flag.String("value", "0", "tx value")
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dump = flag.Bool("dump", false, "dump state after run")
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2014-11-11 13:51:26 -08:00
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data = flag.String("data", "", "data")
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)
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func perr(v ...interface{}) {
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fmt.Println(v...)
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//os.Exit(1)
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}
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func main() {
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flag.Parse()
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logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))
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2014-12-04 03:35:23 -08:00
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ethutil.ReadConfig("/tmp/evmtest", "/tmp/evm", "")
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db, _ := ethdb.NewMemDatabase()
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statedb := state.New(trie.New(db, ""))
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sender := statedb.NewStateObject([]byte("sender"))
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receiver := statedb.NewStateObject([]byte("receiver"))
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//receiver.SetCode([]byte(*code))
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receiver.SetCode(ethutil.Hex2Bytes(*code))
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vmenv := NewEnv(statedb, []byte("evmuser"), ethutil.Big(*value))
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tstart := time.Now()
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2014-12-04 02:30:41 -08:00
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ret, e := vmenv.Call(sender, receiver.Address(), ethutil.Hex2Bytes(*data), ethutil.Big(*gas), ethutil.Big(*price), ethutil.Big(*value))
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logger.Flush()
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if e != nil {
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perr(e)
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}
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2014-11-10 03:42:16 -08:00
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if *dump {
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fmt.Println(string(statedb.Dump()))
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}
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var mem runtime.MemStats
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runtime.ReadMemStats(&mem)
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fmt.Printf("vm took %v\n", time.Since(tstart))
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fmt.Printf(`alloc: %d
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tot alloc: %d
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no. malloc: %d
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heap alloc: %d
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heap objs: %d
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num gc: %d
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`, mem.Alloc, mem.TotalAlloc, mem.Mallocs, mem.HeapAlloc, mem.HeapObjects, mem.NumGC)
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fmt.Printf("%x\n", ret)
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}
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type VMEnv struct {
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state *state.StateDB
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block *types.Block
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transactor []byte
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value *big.Int
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depth int
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Gas *big.Int
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time int64
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}
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func NewEnv(state *state.StateDB, transactor []byte, value *big.Int) *VMEnv {
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return &VMEnv{
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state: state,
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transactor: transactor,
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value: value,
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time: time.Now().Unix(),
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}
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}
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func (self *VMEnv) State() *state.StateDB { return self.state }
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func (self *VMEnv) Origin() []byte { return self.transactor }
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func (self *VMEnv) BlockNumber() *big.Int { return ethutil.Big0 }
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func (self *VMEnv) PrevHash() []byte { return make([]byte, 32) }
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func (self *VMEnv) Coinbase() []byte { return self.transactor }
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func (self *VMEnv) Time() int64 { return self.time }
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func (self *VMEnv) Difficulty() *big.Int { return ethutil.Big1 }
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func (self *VMEnv) BlockHash() []byte { return make([]byte, 32) }
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func (self *VMEnv) Value() *big.Int { return self.value }
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func (self *VMEnv) GasLimit() *big.Int { return big.NewInt(1000000000) }
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func (self *VMEnv) Depth() int { return 0 }
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func (self *VMEnv) SetDepth(i int) { self.depth = i }
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func (self *VMEnv) AddLog(log *state.Log) {
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self.state.AddLog(log)
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}
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func (self *VMEnv) Transfer(from, to vm.Account, amount *big.Int) error {
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return vm.Transfer(from, to, amount)
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}
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func (self *VMEnv) vm(addr, data []byte, gas, price, value *big.Int) *core.Execution {
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evm := vm.New(self, vm.DebugVmTy)
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return core.NewExecution(evm, addr, data, gas, price, value)
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}
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func (self *VMEnv) Call(caller vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error) {
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exe := self.vm(addr, data, gas, price, value)
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ret, err := exe.Call(addr, caller)
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self.Gas = exe.Gas
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return ret, err
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}
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func (self *VMEnv) CallCode(caller vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error) {
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exe := self.vm(caller.Address(), data, gas, price, value)
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return exe.Call(addr, caller)
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}
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func (self *VMEnv) Create(caller vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ClosureRef) {
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exe := self.vm(addr, data, gas, price, value)
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return exe.Create(caller)
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}
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