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cmd/evm: statet8n output folder + tx hashes on trace filenames (#21406)

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* t8ntool: add output basedir

* t8ntool: add txhash to trace filename

* t8ntool: don't default to '.' basedir, allow absolute paths
This commit is contained in:
Martin Holst Swende 2020-08-19 11:31:13 +02:00 committed by GitHub
parent 560d44479c
commit 7ebc6c43ff
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 46 additions and 26 deletions
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18
cmd/evm/README.md
View File

@ -29,6 +29,8 @@ Command line params that has to be supported are
--trace Output full trace logs to files <txhash>.jsonl
--trace.nomemory Disable full memory dump in traces
--trace.nostack Disable stack output in traces
--trace.noreturndata Disable return data output in traces
--output.basedir value Specifies where output files are placed. Will be created if it does not exist. (default: ".")
--output.alloc alloc Determines where to put the alloc of the post-state.
`stdout` - into the stdout output
`stderr` - into the stderr output
@ -232,13 +234,13 @@ Example where blockhashes are provided:
./evm t8n --input.alloc=./testdata/3/alloc.json --input.txs=./testdata/3/txs.json --input.env=./testdata/3/env.json --trace
```
```
cat trace-0.jsonl | grep BLOCKHASH -C2
cat trace-0-0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81.jsonl | grep BLOCKHASH -C2
```
```
{"pc":0,"op":96,"gas":"0x5f58ef8","gasCost":"0x3","memory":"0x","memSize":0,"stack":[],"returnStack":[],"depth":1,"refund":0,"opName":"PUSH1","error":""}
{"pc":2,"op":64,"gas":"0x5f58ef5","gasCost":"0x14","memory":"0x","memSize":0,"stack":["0x1"],"returnStack":[],"depth":1,"refund":0,"opName":"BLOCKHASH","error":""}
{"pc":3,"op":0,"gas":"0x5f58ee1","gasCost":"0x0","memory":"0x","memSize":0,"stack":["0xdac58aa524e50956d0c0bae7f3f8bb9d35381365d07804dd5b48a5a297c06af4"],"returnStack":[],"depth":1,"refund":0,"opName":"STOP","error":""}
{"output":"","gasUsed":"0x17","time":155861}
{"pc":0,"op":96,"gas":"0x5f58ef8","gasCost":"0x3","memory":"0x","memSize":0,"stack":[],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"PUSH1","error":""}
{"pc":2,"op":64,"gas":"0x5f58ef5","gasCost":"0x14","memory":"0x","memSize":0,"stack":["0x1"],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"BLOCKHASH","error":""}
{"pc":3,"op":0,"gas":"0x5f58ee1","gasCost":"0x0","memory":"0x","memSize":0,"stack":["0xdac58aa524e50956d0c0bae7f3f8bb9d35381365d07804dd5b48a5a297c06af4"],"returnStack":[],"returnData":null,"depth":1,"refund":0,"opName":"STOP","error":""}
{"output":"","gasUsed":"0x17","time":112885}
```
In this example, the caller has not provided the required blockhash:
@ -254,9 +256,9 @@ Error code: 4
Another thing that can be done, is to chain invocations:
```
./evm t8n --input.alloc=./testdata/1/alloc.json --input.txs=./testdata/1/txs.json --input.env=./testdata/1/env.json --output.alloc=stdout | ./evm t8n --input.alloc=stdin --input.env=./testdata/1/env.json --input.txs=./testdata/1/txs.json
INFO [06-29|11:52:04.934] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [06-29|11:52:04.936] rejected tx index=0 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [06-29|11:52:04.936] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [08-03|15:25:15.168] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [08-03|15:25:15.169] rejected tx index=0 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
INFO [08-03|15:25:15.169] rejected tx index=1 hash="0557ba…18d673" from=0x8A8eAFb1cf62BfBeb1741769DAE1a9dd47996192 error="nonce too low"
```
What happened here, is that we first applied two identical transactions, so the second one was rejected.

4
cmd/evm/internal/t8ntool/execution.go
View File

@ -81,7 +81,7 @@ type stEnvMarshaling struct {
// Apply applies a set of transactions to a pre-state
func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
txs types.Transactions, miningReward int64,
getTracerFn func(txIndex int) (tracer vm.Tracer, err error)) (*state.StateDB, *ExecutionResult, error) {
getTracerFn func(txIndex int, txHash common.Hash) (tracer vm.Tracer, err error)) (*state.StateDB, *ExecutionResult, error) {
// Capture errors for BLOCKHASH operation, if we haven't been supplied the
// required blockhashes
@ -135,7 +135,7 @@ func (pre *Prestate) Apply(vmConfig vm.Config, chainConfig *params.ChainConfig,
rejectedTxs = append(rejectedTxs, i)
continue
}
tracer, err := getTracerFn(txIndex)
tracer, err := getTracerFn(txIndex, tx.Hash())
if err != nil {
return nil, nil, err
}

5
cmd/evm/internal/t8ntool/flags.go
View File

@ -42,6 +42,11 @@ var (
Name: "trace.noreturndata",
Usage: "Disable return data output in traces",
}
OutputBasedir = cli.StringFlag{
Name: "output.basedir",
Usage: "Specifies where output files are placed. Will be created if it does not exist.",
Value: "",
}
OutputAllocFlag = cli.StringFlag{
Name: "output.alloc",
Usage: "Determines where to put the `alloc` of the post-state.\n" +

40
cmd/evm/internal/t8ntool/transition.go
View File

@ -22,6 +22,7 @@ import (
"io/ioutil"
"math/big"
"os"
"path"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
@ -75,11 +76,22 @@ func Main(ctx *cli.Context) error {
log.Root().SetHandler(glogger)
var (
err error
tracer vm.Tracer
err error
tracer vm.Tracer
baseDir = ""
)
var getTracer func(txIndex int) (vm.Tracer, error)
var getTracer func(txIndex int, txHash common.Hash) (vm.Tracer, error)
// If user specified a basedir, make sure it exists
if ctx.IsSet(OutputBasedir.Name) {
if base := ctx.String(OutputBasedir.Name); len(base) > 0 {
err := os.MkdirAll(base, 0755) // //rw-r--r--
if err != nil {
return NewError(ErrorIO, fmt.Errorf("failed creating output basedir: %v", err))
}
baseDir = base
}
}
if ctx.Bool(TraceFlag.Name) {
// Configure the EVM logger
logConfig := &vm.LogConfig{
@ -95,11 +107,11 @@ func Main(ctx *cli.Context) error {
prevFile.Close()
}
}()
getTracer = func(txIndex int) (vm.Tracer, error) {
getTracer = func(txIndex int, txHash common.Hash) (vm.Tracer, error) {
if prevFile != nil {
prevFile.Close()
}
traceFile, err := os.Create(fmt.Sprintf("trace-%d.jsonl", txIndex))
traceFile, err := os.Create(path.Join(baseDir, fmt.Sprintf("trace-%d-%v.jsonl", txIndex, txHash.String())))
if err != nil {
return nil, NewError(ErrorIO, fmt.Errorf("failed creating trace-file: %v", err))
}
@ -107,7 +119,7 @@ func Main(ctx *cli.Context) error {
return vm.NewJSONLogger(logConfig, traceFile), nil
}
} else {
getTracer = func(txIndex int) (tracer vm.Tracer, err error) {
getTracer = func(txIndex int, txHash common.Hash) (tracer vm.Tracer, err error) {
return nil, nil
}
}
@ -197,7 +209,7 @@ func Main(ctx *cli.Context) error {
//postAlloc := state.DumpGenesisFormat(false, false, false)
collector := make(Alloc)
state.DumpToCollector(collector, false, false, false, nil, -1)
return dispatchOutput(ctx, result, collector)
return dispatchOutput(ctx, baseDir, result, collector)
}
@ -224,12 +236,12 @@ func (g Alloc) OnAccount(addr common.Address, dumpAccount state.DumpAccount) {
}
// saveFile marshalls the object to the given file
func saveFile(filename string, data interface{}) error {
func saveFile(baseDir, filename string, data interface{}) error {
b, err := json.MarshalIndent(data, "", " ")
if err != nil {
return NewError(ErrorJson, fmt.Errorf("failed marshalling output: %v", err))
}
if err = ioutil.WriteFile(filename, b, 0644); err != nil {
if err = ioutil.WriteFile(path.Join(baseDir, filename), b, 0644); err != nil {
return NewError(ErrorIO, fmt.Errorf("failed writing output: %v", err))
}
return nil
@ -237,26 +249,26 @@ func saveFile(filename string, data interface{}) error {
// dispatchOutput writes the output data to either stderr or stdout, or to the specified
// files
func dispatchOutput(ctx *cli.Context, result *ExecutionResult, alloc Alloc) error {
func dispatchOutput(ctx *cli.Context, baseDir string, result *ExecutionResult, alloc Alloc) error {
stdOutObject := make(map[string]interface{})
stdErrObject := make(map[string]interface{})
dispatch := func(fName, name string, obj interface{}) error {
dispatch := func(baseDir, fName, name string, obj interface{}) error {
switch fName {
case "stdout":
stdOutObject[name] = obj
case "stderr":
stdErrObject[name] = obj
default: // save to file
if err := saveFile(fName, obj); err != nil {
if err := saveFile(baseDir, fName, obj); err != nil {
return err
}
}
return nil
}
if err := dispatch(ctx.String(OutputAllocFlag.Name), "alloc", alloc); err != nil {
if err := dispatch(baseDir, ctx.String(OutputAllocFlag.Name), "alloc", alloc); err != nil {
return err
}
if err := dispatch(ctx.String(OutputResultFlag.Name), "result", result); err != nil {
if err := dispatch(baseDir, ctx.String(OutputResultFlag.Name), "result", result); err != nil {
return err
}
if len(stdOutObject) > 0 {

1
cmd/evm/main.go
View File

@ -146,6 +146,7 @@ var stateTransitionCommand = cli.Command{
t8ntool.TraceDisableMemoryFlag,
t8ntool.TraceDisableStackFlag,
t8ntool.TraceDisableReturnDataFlag,
t8ntool.OutputBasedir,
t8ntool.OutputAllocFlag,
t8ntool.OutputResultFlag,
t8ntool.InputAllocFlag,

4
cmd/evm/transition-test.sh
View File

@ -155,10 +155,10 @@ echo "Example where blockhashes are provided: "
cmd="./evm t8n --input.alloc=./testdata/3/alloc.json --input.txs=./testdata/3/txs.json --input.env=./testdata/3/env.json --trace"
tick && echo $cmd && tick
$cmd 2>&1 >/dev/null
cmd="cat trace-0.jsonl | grep BLOCKHASH -C2"
cmd="cat trace-0-0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81.jsonl | grep BLOCKHASH -C2"
tick && echo $cmd && tick
echo "$ticks"
cat trace-0.jsonl | grep BLOCKHASH -C2
cat trace-0-0x72fadbef39cd251a437eea619cfeda752271a5faaaa2147df012e112159ffb81.jsonl | grep BLOCKHASH -C2
echo "$ticks"
echo ""