314 lines
9.3 KiB
Go
314 lines
9.3 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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"encoding/json"
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"fmt"
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"io"
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"math/big"
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"os"
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goruntime "runtime"
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"slices"
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"testing"
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"time"
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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"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/tracing"
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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/eth/tracers/logger"
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"github.com/ethereum/go-ethereum/internal/flags"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/triedb"
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"github.com/ethereum/go-ethereum/triedb/hashdb"
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"github.com/urfave/cli/v2"
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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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Flags: slices.Concat(vmFlags, traceFlags),
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}
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// readGenesis will read the given JSON format genesis file and return
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// the initialized Genesis structure
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func readGenesis(genesisPath string) *core.Genesis {
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// Make sure we have a valid genesis JSON
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//genesisPath := ctx.Args().First()
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if len(genesisPath) == 0 {
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utils.Fatalf("Must supply path to genesis JSON file")
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}
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file, err := os.Open(genesisPath)
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if err != nil {
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utils.Fatalf("Failed to read genesis file: %v", err)
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}
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defer file.Close()
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genesis := new(core.Genesis)
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if err := json.NewDecoder(file).Decode(genesis); err != nil {
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utils.Fatalf("invalid genesis file: %v", err)
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}
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return genesis
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}
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type execStats struct {
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time time.Duration // The execution time.
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allocs int64 // The number of heap allocations during execution.
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bytesAllocated int64 // The cumulative number of bytes allocated during execution.
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}
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func timedExec(bench bool, execFunc func() ([]byte, uint64, error)) (output []byte, gasLeft uint64, stats execStats, err error) {
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if bench {
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result := testing.Benchmark(func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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output, gasLeft, err = execFunc()
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}
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})
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// Get the average execution time from the benchmarking result.
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// There are other useful stats here that could be reported.
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stats.time = time.Duration(result.NsPerOp())
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stats.allocs = result.AllocsPerOp()
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stats.bytesAllocated = result.AllocedBytesPerOp()
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} else {
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var memStatsBefore, memStatsAfter goruntime.MemStats
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goruntime.ReadMemStats(&memStatsBefore)
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startTime := time.Now()
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output, gasLeft, err = execFunc()
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stats.time = time.Since(startTime)
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goruntime.ReadMemStats(&memStatsAfter)
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stats.allocs = int64(memStatsAfter.Mallocs - memStatsBefore.Mallocs)
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stats.bytesAllocated = int64(memStatsAfter.TotalAlloc - memStatsBefore.TotalAlloc)
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}
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return output, gasLeft, stats, err
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}
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func runCmd(ctx *cli.Context) error {
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logconfig := &logger.Config{
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EnableMemory: !ctx.Bool(DisableMemoryFlag.Name),
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DisableStack: ctx.Bool(DisableStackFlag.Name),
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DisableStorage: ctx.Bool(DisableStorageFlag.Name),
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EnableReturnData: !ctx.Bool(DisableReturnDataFlag.Name),
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Debug: ctx.Bool(DebugFlag.Name),
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}
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var (
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tracer *tracing.Hooks
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debugLogger *logger.StructLogger
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statedb *state.StateDB
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chainConfig *params.ChainConfig
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sender = common.BytesToAddress([]byte("sender"))
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receiver = common.BytesToAddress([]byte("receiver"))
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preimages = ctx.Bool(DumpFlag.Name)
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blobHashes []common.Hash // TODO (MariusVanDerWijden) implement blob hashes in state tests
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blobBaseFee = new(big.Int) // TODO (MariusVanDerWijden) implement blob fee in state tests
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)
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if ctx.Bool(MachineFlag.Name) {
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tracer = logger.NewJSONLogger(logconfig, os.Stdout)
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} else if ctx.Bool(DebugFlag.Name) {
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debugLogger = logger.NewStructLogger(logconfig)
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tracer = debugLogger.Hooks()
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} else {
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debugLogger = logger.NewStructLogger(logconfig)
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}
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initialGas := ctx.Uint64(GasFlag.Name)
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genesisConfig := new(core.Genesis)
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genesisConfig.GasLimit = initialGas
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if ctx.String(GenesisFlag.Name) != "" {
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genesisConfig = readGenesis(ctx.String(GenesisFlag.Name))
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if genesisConfig.GasLimit != 0 {
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initialGas = genesisConfig.GasLimit
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}
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} else {
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genesisConfig.Config = params.AllDevChainProtocolChanges
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}
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db := rawdb.NewMemoryDatabase()
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triedb := triedb.NewDatabase(db, &triedb.Config{
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Preimages: preimages,
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HashDB: hashdb.Defaults,
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})
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defer triedb.Close()
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genesis := genesisConfig.MustCommit(db, triedb)
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sdb := state.NewDatabase(triedb, nil)
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statedb, _ = state.New(genesis.Root(), sdb)
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chainConfig = genesisConfig.Config
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if ctx.String(SenderFlag.Name) != "" {
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sender = common.HexToAddress(ctx.String(SenderFlag.Name))
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}
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if ctx.String(ReceiverFlag.Name) != "" {
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receiver = common.HexToAddress(ctx.String(ReceiverFlag.Name))
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}
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var code []byte
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codeFileFlag := ctx.String(CodeFileFlag.Name)
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codeFlag := ctx.String(CodeFlag.Name)
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// The '--code' or '--codefile' flag overrides code in state
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if codeFileFlag != "" || codeFlag != "" {
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var hexcode []byte
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if codeFileFlag != "" {
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var err error
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// If - is specified, it means that code comes from stdin
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if codeFileFlag == "-" {
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//Try reading from stdin
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if hexcode, err = io.ReadAll(os.Stdin); 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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} else {
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// Codefile with hex assembly
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if hexcode, err = os.ReadFile(codeFileFlag); 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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}
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} else {
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hexcode = []byte(codeFlag)
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}
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hexcode = bytes.TrimSpace(hexcode)
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if len(hexcode)%2 != 0 {
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fmt.Printf("Invalid input length for hex data (%d)\n", len(hexcode))
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os.Exit(1)
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}
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code = common.FromHex(string(hexcode))
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} else if fn := ctx.Args().First(); len(fn) > 0 {
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// EASM-file to compile
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src, err := os.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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}
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runtimeConfig := runtime.Config{
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Origin: sender,
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State: statedb,
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GasLimit: initialGas,
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GasPrice: flags.GlobalBig(ctx, PriceFlag.Name),
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Value: flags.GlobalBig(ctx, ValueFlag.Name),
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Difficulty: genesisConfig.Difficulty,
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Time: genesisConfig.Timestamp,
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Coinbase: genesisConfig.Coinbase,
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BlockNumber: new(big.Int).SetUint64(genesisConfig.Number),
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BaseFee: genesisConfig.BaseFee,
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BlobHashes: blobHashes,
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BlobBaseFee: blobBaseFee,
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EVMConfig: vm.Config{
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Tracer: tracer,
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},
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}
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if chainConfig != nil {
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runtimeConfig.ChainConfig = chainConfig
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} else {
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runtimeConfig.ChainConfig = params.AllEthashProtocolChanges
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}
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var hexInput []byte
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if inputFileFlag := ctx.String(InputFileFlag.Name); inputFileFlag != "" {
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var err error
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if hexInput, err = os.ReadFile(inputFileFlag); err != nil {
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fmt.Printf("could not load input 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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hexInput = []byte(ctx.String(InputFlag.Name))
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}
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hexInput = bytes.TrimSpace(hexInput)
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if len(hexInput)%2 != 0 {
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fmt.Println("input length must be even")
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os.Exit(1)
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}
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input := common.FromHex(string(hexInput))
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var execFunc func() ([]byte, uint64, error)
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if ctx.Bool(CreateFlag.Name) {
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input = append(code, input...)
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execFunc = func() ([]byte, uint64, error) {
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output, _, gasLeft, err := runtime.Create(input, &runtimeConfig)
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return output, gasLeft, err
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}
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} else {
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if len(code) > 0 {
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statedb.SetCode(receiver, code)
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}
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execFunc = func() ([]byte, uint64, error) {
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return runtime.Call(receiver, input, &runtimeConfig)
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}
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}
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bench := ctx.Bool(BenchFlag.Name)
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output, leftOverGas, stats, err := timedExec(bench, execFunc)
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if ctx.Bool(DumpFlag.Name) {
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root, err := statedb.Commit(genesisConfig.Number, true)
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if err != nil {
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fmt.Printf("Failed to commit changes %v\n", err)
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return err
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}
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dumpdb, err := state.New(root, sdb)
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if err != nil {
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fmt.Printf("Failed to open statedb %v\n", err)
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return err
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}
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fmt.Println(string(dumpdb.Dump(nil)))
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}
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if ctx.Bool(DebugFlag.Name) {
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if debugLogger != nil {
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fmt.Fprintln(os.Stderr, "#### TRACE ####")
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logger.WriteTrace(os.Stderr, debugLogger.StructLogs())
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}
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fmt.Fprintln(os.Stderr, "#### LOGS ####")
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logger.WriteLogs(os.Stderr, statedb.Logs())
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}
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if bench || ctx.Bool(StatDumpFlag.Name) {
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fmt.Fprintf(os.Stderr, `EVM gas used: %d
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execution time: %v
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allocations: %d
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allocated bytes: %d
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`, initialGas-leftOverGas, stats.time, stats.allocs, stats.bytesAllocated)
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}
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if tracer == nil {
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fmt.Printf("%#x\n", output)
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if err != nil {
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fmt.Printf(" error: %v\n", err)
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}
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}
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return nil
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}
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