go-ethereum/cmd/evm/runner.go
rjl493456442 623b17ba20
core/state: state reader abstraction (#29761)
This pull request introduces a state.Reader interface for state
accessing.

The interface could be implemented in various ways. It can be pure trie
only reader, or the combination of trie and state snapshot. What's more,
this interface allows us to have more flexibility in the future, e.g.
the
archive reader (for accessing archive state).

Additionally, this pull request removes the following metrics

- `chain/snapshot/account/reads`
- `chain/snapshot/storage/reads`
2024-09-05 13:10:47 +03:00

313 lines
9.3 KiB
Go

// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"math/big"
"os"
goruntime "runtime"
"testing"
"time"
"github.com/ethereum/go-ethereum/cmd/evm/internal/compiler"
"github.com/ethereum/go-ethereum/cmd/utils"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/core/vm/runtime"
"github.com/ethereum/go-ethereum/eth/tracers/logger"
"github.com/ethereum/go-ethereum/internal/flags"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/triedb"
"github.com/ethereum/go-ethereum/triedb/hashdb"
"github.com/urfave/cli/v2"
)
var runCommand = &cli.Command{
Action: runCmd,
Name: "run",
Usage: "Run arbitrary evm binary",
ArgsUsage: "<code>",
Description: `The run command runs arbitrary EVM code.`,
Flags: flags.Merge(vmFlags, traceFlags),
}
// readGenesis will read the given JSON format genesis file and return
// the initialized Genesis structure
func readGenesis(genesisPath string) *core.Genesis {
// Make sure we have a valid genesis JSON
//genesisPath := ctx.Args().First()
if len(genesisPath) == 0 {
utils.Fatalf("Must supply path to genesis JSON file")
}
file, err := os.Open(genesisPath)
if err != nil {
utils.Fatalf("Failed to read genesis file: %v", err)
}
defer file.Close()
genesis := new(core.Genesis)
if err := json.NewDecoder(file).Decode(genesis); err != nil {
utils.Fatalf("invalid genesis file: %v", err)
}
return genesis
}
type execStats struct {
time time.Duration // The execution time.
allocs int64 // The number of heap allocations during execution.
bytesAllocated int64 // The cumulative number of bytes allocated during execution.
}
func timedExec(bench bool, execFunc func() ([]byte, uint64, error)) (output []byte, gasLeft uint64, stats execStats, err error) {
if bench {
result := testing.Benchmark(func(b *testing.B) {
for i := 0; i < b.N; i++ {
output, gasLeft, err = execFunc()
}
})
// Get the average execution time from the benchmarking result.
// There are other useful stats here that could be reported.
stats.time = time.Duration(result.NsPerOp())
stats.allocs = result.AllocsPerOp()
stats.bytesAllocated = result.AllocedBytesPerOp()
} else {
var memStatsBefore, memStatsAfter goruntime.MemStats
goruntime.ReadMemStats(&memStatsBefore)
startTime := time.Now()
output, gasLeft, err = execFunc()
stats.time = time.Since(startTime)
goruntime.ReadMemStats(&memStatsAfter)
stats.allocs = int64(memStatsAfter.Mallocs - memStatsBefore.Mallocs)
stats.bytesAllocated = int64(memStatsAfter.TotalAlloc - memStatsBefore.TotalAlloc)
}
return output, gasLeft, stats, err
}
func runCmd(ctx *cli.Context) error {
logconfig := &logger.Config{
EnableMemory: !ctx.Bool(DisableMemoryFlag.Name),
DisableStack: ctx.Bool(DisableStackFlag.Name),
DisableStorage: ctx.Bool(DisableStorageFlag.Name),
EnableReturnData: !ctx.Bool(DisableReturnDataFlag.Name),
Debug: ctx.Bool(DebugFlag.Name),
}
var (
tracer *tracing.Hooks
debugLogger *logger.StructLogger
statedb *state.StateDB
chainConfig *params.ChainConfig
sender = common.BytesToAddress([]byte("sender"))
receiver = common.BytesToAddress([]byte("receiver"))
preimages = ctx.Bool(DumpFlag.Name)
blobHashes []common.Hash // TODO (MariusVanDerWijden) implement blob hashes in state tests
blobBaseFee = new(big.Int) // TODO (MariusVanDerWijden) implement blob fee in state tests
)
if ctx.Bool(MachineFlag.Name) {
tracer = logger.NewJSONLogger(logconfig, os.Stdout)
} else if ctx.Bool(DebugFlag.Name) {
debugLogger = logger.NewStructLogger(logconfig)
tracer = debugLogger.Hooks()
} else {
debugLogger = logger.NewStructLogger(logconfig)
}
initialGas := ctx.Uint64(GasFlag.Name)
genesisConfig := new(core.Genesis)
genesisConfig.GasLimit = initialGas
if ctx.String(GenesisFlag.Name) != "" {
genesisConfig = readGenesis(ctx.String(GenesisFlag.Name))
if genesisConfig.GasLimit != 0 {
initialGas = genesisConfig.GasLimit
}
} else {
genesisConfig.Config = params.AllDevChainProtocolChanges
}
db := rawdb.NewMemoryDatabase()
triedb := triedb.NewDatabase(db, &triedb.Config{
Preimages: preimages,
HashDB: hashdb.Defaults,
})
defer triedb.Close()
genesis := genesisConfig.MustCommit(db, triedb)
sdb := state.NewDatabase(triedb, nil)
statedb, _ = state.New(genesis.Root(), sdb)
chainConfig = genesisConfig.Config
if ctx.String(SenderFlag.Name) != "" {
sender = common.HexToAddress(ctx.String(SenderFlag.Name))
}
if ctx.String(ReceiverFlag.Name) != "" {
receiver = common.HexToAddress(ctx.String(ReceiverFlag.Name))
}
var code []byte
codeFileFlag := ctx.String(CodeFileFlag.Name)
codeFlag := ctx.String(CodeFlag.Name)
// The '--code' or '--codefile' flag overrides code in state
if codeFileFlag != "" || codeFlag != "" {
var hexcode []byte
if codeFileFlag != "" {
var err error
// If - is specified, it means that code comes from stdin
if codeFileFlag == "-" {
//Try reading from stdin
if hexcode, err = io.ReadAll(os.Stdin); err != nil {
fmt.Printf("Could not load code from stdin: %v\n", err)
os.Exit(1)
}
} else {
// Codefile with hex assembly
if hexcode, err = os.ReadFile(codeFileFlag); err != nil {
fmt.Printf("Could not load code from file: %v\n", err)
os.Exit(1)
}
}
} else {
hexcode = []byte(codeFlag)
}
hexcode = bytes.TrimSpace(hexcode)
if len(hexcode)%2 != 0 {
fmt.Printf("Invalid input length for hex data (%d)\n", len(hexcode))
os.Exit(1)
}
code = common.FromHex(string(hexcode))
} else if fn := ctx.Args().First(); len(fn) > 0 {
// EASM-file to compile
src, err := os.ReadFile(fn)
if err != nil {
return err
}
bin, err := compiler.Compile(fn, src, false)
if err != nil {
return err
}
code = common.Hex2Bytes(bin)
}
runtimeConfig := runtime.Config{
Origin: sender,
State: statedb,
GasLimit: initialGas,
GasPrice: flags.GlobalBig(ctx, PriceFlag.Name),
Value: flags.GlobalBig(ctx, ValueFlag.Name),
Difficulty: genesisConfig.Difficulty,
Time: genesisConfig.Timestamp,
Coinbase: genesisConfig.Coinbase,
BlockNumber: new(big.Int).SetUint64(genesisConfig.Number),
BaseFee: genesisConfig.BaseFee,
BlobHashes: blobHashes,
BlobBaseFee: blobBaseFee,
EVMConfig: vm.Config{
Tracer: tracer,
},
}
if chainConfig != nil {
runtimeConfig.ChainConfig = chainConfig
} else {
runtimeConfig.ChainConfig = params.AllEthashProtocolChanges
}
var hexInput []byte
if inputFileFlag := ctx.String(InputFileFlag.Name); inputFileFlag != "" {
var err error
if hexInput, err = os.ReadFile(inputFileFlag); err != nil {
fmt.Printf("could not load input from file: %v\n", err)
os.Exit(1)
}
} else {
hexInput = []byte(ctx.String(InputFlag.Name))
}
hexInput = bytes.TrimSpace(hexInput)
if len(hexInput)%2 != 0 {
fmt.Println("input length must be even")
os.Exit(1)
}
input := common.FromHex(string(hexInput))
var execFunc func() ([]byte, uint64, error)
if ctx.Bool(CreateFlag.Name) {
input = append(code, input...)
execFunc = func() ([]byte, uint64, error) {
output, _, gasLeft, err := runtime.Create(input, &runtimeConfig)
return output, gasLeft, err
}
} else {
if len(code) > 0 {
statedb.SetCode(receiver, code)
}
execFunc = func() ([]byte, uint64, error) {
return runtime.Call(receiver, input, &runtimeConfig)
}
}
bench := ctx.Bool(BenchFlag.Name)
output, leftOverGas, stats, err := timedExec(bench, execFunc)
if ctx.Bool(DumpFlag.Name) {
root, err := statedb.Commit(genesisConfig.Number, true)
if err != nil {
fmt.Printf("Failed to commit changes %v\n", err)
return err
}
dumpdb, err := state.New(root, sdb)
if err != nil {
fmt.Printf("Failed to open statedb %v\n", err)
return err
}
fmt.Println(string(dumpdb.Dump(nil)))
}
if ctx.Bool(DebugFlag.Name) {
if debugLogger != nil {
fmt.Fprintln(os.Stderr, "#### TRACE ####")
logger.WriteTrace(os.Stderr, debugLogger.StructLogs())
}
fmt.Fprintln(os.Stderr, "#### LOGS ####")
logger.WriteLogs(os.Stderr, statedb.Logs())
}
if bench || ctx.Bool(StatDumpFlag.Name) {
fmt.Fprintf(os.Stderr, `EVM gas used: %d
execution time: %v
allocations: %d
allocated bytes: %d
`, initialGas-leftOverGas, stats.time, stats.allocs, stats.bytesAllocated)
}
if tracer == nil {
fmt.Printf("%#x\n", output)
if err != nil {
fmt.Printf(" error: %v\n", err)
}
}
return nil
}