mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-24 12:37:16 +00:00
f30733c806
Added the ability to directly compile and run ethereum assembly using the evm utility: `evm run <file>`. This is equivalant to `evm compile <file> | evm run`.
152 lines
4.2 KiB
Go
152 lines
4.2 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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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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//
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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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//
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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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package main
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"time"
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goruntime "runtime"
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"github.com/ethereum/go-ethereum/cmd/evm/internal/compiler"
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"github.com/ethereum/go-ethereum/cmd/utils"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/core/vm/runtime"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/log"
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cli "gopkg.in/urfave/cli.v1"
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)
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var runCommand = cli.Command{
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Action: runCmd,
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Name: "run",
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Usage: "run arbitrary evm binary",
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ArgsUsage: "<code>",
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Description: `The run command runs arbitrary EVM code.`,
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}
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func runCmd(ctx *cli.Context) error {
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glogger := log.NewGlogHandler(log.StreamHandler(os.Stderr, log.TerminalFormat(false)))
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glogger.Verbosity(log.Lvl(ctx.GlobalInt(VerbosityFlag.Name)))
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log.Root().SetHandler(glogger)
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var (
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db, _ = ethdb.NewMemDatabase()
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statedb, _ = state.New(common.Hash{}, db)
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sender = common.StringToAddress("sender")
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logger = vm.NewStructLogger(nil)
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)
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statedb.CreateAccount(sender)
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var (
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code []byte
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ret []byte
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err error
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)
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if fn := ctx.Args().First(); len(fn) > 0 {
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src, err := ioutil.ReadFile(fn)
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if err != nil {
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return err
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}
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bin, err := compiler.Compile(fn, src, false)
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if err != nil {
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return err
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}
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code = common.Hex2Bytes(bin)
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} else if ctx.GlobalString(CodeFlag.Name) != "" {
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code = common.Hex2Bytes(ctx.GlobalString(CodeFlag.Name))
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} else {
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var hexcode []byte
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if ctx.GlobalString(CodeFileFlag.Name) != "" {
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var err error
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hexcode, err = ioutil.ReadFile(ctx.GlobalString(CodeFileFlag.Name))
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if err != nil {
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fmt.Printf("Could not load code from file: %v\n", err)
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os.Exit(1)
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}
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} else {
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var err error
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hexcode, err = ioutil.ReadAll(os.Stdin)
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if err != nil {
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fmt.Printf("Could not load code from stdin: %v\n", err)
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os.Exit(1)
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}
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}
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code = common.Hex2Bytes(string(bytes.TrimRight(hexcode, "\n")))
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}
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runtimeConfig := runtime.Config{
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Origin: sender,
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State: statedb,
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GasLimit: ctx.GlobalUint64(GasFlag.Name),
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GasPrice: utils.GlobalBig(ctx, PriceFlag.Name),
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Value: utils.GlobalBig(ctx, ValueFlag.Name),
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EVMConfig: vm.Config{
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Tracer: logger,
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Debug: ctx.GlobalBool(DebugFlag.Name),
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DisableGasMetering: ctx.GlobalBool(DisableGasMeteringFlag.Name),
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},
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}
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tstart := time.Now()
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if ctx.GlobalBool(CreateFlag.Name) {
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input := append(code, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name))...)
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ret, _, err = runtime.Create(input, &runtimeConfig)
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} else {
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receiver := common.StringToAddress("receiver")
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statedb.SetCode(receiver, code)
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ret, err = runtime.Call(receiver, common.Hex2Bytes(ctx.GlobalString(InputFlag.Name)), &runtimeConfig)
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}
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execTime := time.Since(tstart)
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if ctx.GlobalBool(DumpFlag.Name) {
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statedb.Commit(true)
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fmt.Println(string(statedb.Dump()))
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}
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if ctx.GlobalBool(DebugFlag.Name) {
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fmt.Fprintln(os.Stderr, "#### TRACE ####")
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vm.WriteTrace(os.Stderr, logger.StructLogs())
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fmt.Fprintln(os.Stderr, "#### LOGS ####")
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vm.WriteLogs(os.Stderr, statedb.Logs())
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var mem goruntime.MemStats
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goruntime.ReadMemStats(&mem)
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fmt.Fprintf(os.Stderr, `evm execution time: %v
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heap objects: %d
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allocations: %d
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total allocations: %d
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GC calls: %d
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`, execTime, mem.HeapObjects, mem.Alloc, mem.TotalAlloc, mem.NumGC)
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}
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fmt.Printf("0x%x", ret)
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if err != nil {
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fmt.Printf(" error: %v", err)
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}
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fmt.Println()
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return nil
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}
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