281 lines
7.5 KiB
Go
281 lines
7.5 KiB
Go
package main
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import (
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"context"
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"fmt"
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"io"
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"os"
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"strconv"
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"text/tabwriter"
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"github.com/ipfs/go-cid"
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"github.com/urfave/cli/v2"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-state-types/abi"
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"github.com/filecoin-project/go-state-types/network"
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"github.com/filecoin-project/lotus/build"
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"github.com/filecoin-project/lotus/chain/beacon"
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"github.com/filecoin-project/lotus/chain/beacon/drand"
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"github.com/filecoin-project/lotus/chain/consensus/filcns"
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"github.com/filecoin-project/lotus/chain/stmgr"
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"github.com/filecoin-project/lotus/chain/store"
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"github.com/filecoin-project/lotus/chain/types"
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"github.com/filecoin-project/lotus/chain/vm"
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lcli "github.com/filecoin-project/lotus/cli"
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"github.com/filecoin-project/lotus/node/repo"
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"github.com/filecoin-project/lotus/storage/sealer/ffiwrapper"
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)
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const MAINNET_GENESIS_TIME = 1598306400
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// USAGE: Sync a node, then call migrate-nv17 on some old state. Pass in the cid of the migrated state root,
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// the epoch you migrated at, the network version you migrated to, and a message CID. You will be able to replay any
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// message from between the migration epoch, and where your node originally synced to. Note: You may run into issues
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// with state that changed between the epoch you migrated at, and when the message was originally processed.
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// This can be avoided by replaying messages from close to the migration epoch, or circumvented by using a custom
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// FVM bundle.
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var gasTraceCmd = &cli.Command{
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Name: "trace-gas",
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Description: "replay a message on the specified stateRoot and network version to get an execution trace",
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ArgsUsage: "[migratedStateRootCid networkVersion messageCid]",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "repo",
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Value: "~/.lotus",
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},
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},
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Action: func(cctx *cli.Context) error {
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ctx := context.TODO()
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if cctx.NArg() != 3 {
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return lcli.IncorrectNumArgs(cctx)
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}
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stateRootCid, err := cid.Decode(cctx.Args().Get(0))
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if err != nil {
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return fmt.Errorf("failed to parse input: %w", err)
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}
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nv, err := strconv.ParseInt(cctx.Args().Get(1), 10, 32)
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if err != nil {
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return fmt.Errorf("failed to parse input: %w", err)
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}
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messageCid, err := cid.Decode(cctx.Args().Get(2))
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if err != nil {
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return fmt.Errorf("failed to parse input: %w", err)
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}
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fsrepo, err := repo.NewFS(cctx.String("repo"))
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if err != nil {
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return err
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}
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lkrepo, err := fsrepo.Lock(repo.FullNode)
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if err != nil {
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return err
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}
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defer lkrepo.Close() //nolint:errcheck
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bs, err := lkrepo.Blockstore(ctx, repo.UniversalBlockstore)
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if err != nil {
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return fmt.Errorf("failed to open blockstore: %w", err)
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}
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defer func() {
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if c, ok := bs.(io.Closer); ok {
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if err := c.Close(); err != nil {
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log.Warnf("failed to close blockstore: %s", err)
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}
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}
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}()
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mds, err := lkrepo.Datastore(context.Background(), "/metadata")
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if err != nil {
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return err
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}
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dcs := build.DrandConfigSchedule()
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shd := beacon.Schedule{}
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for _, dc := range dcs {
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bc, err := drand.NewDrandBeacon(MAINNET_GENESIS_TIME, build.BlockDelaySecs, nil, dc.Config)
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if err != nil {
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return xerrors.Errorf("creating drand beacon: %w", err)
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}
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shd = append(shd, beacon.BeaconPoint{Start: dc.Start, Beacon: bc})
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}
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cs := store.NewChainStore(bs, bs, mds, filcns.Weight, nil)
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defer cs.Close() //nolint:errcheck
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sm, err := stmgr.NewStateManager(cs, filcns.NewTipSetExecutor(), vm.Syscalls(ffiwrapper.ProofVerifier), filcns.DefaultUpgradeSchedule(), shd)
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if err != nil {
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return err
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}
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msg, err := cs.GetMessage(ctx, messageCid)
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if err != nil {
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return err
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}
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// Set to block limit so message will not run out of gas
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msg.GasLimit = build.BlockGasLimit
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err = cs.Load(ctx)
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if err != nil {
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return err
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}
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tw := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', tabwriter.AlignRight)
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res, err := sm.CallAtStateAndVersion(ctx, msg, stateRootCid, network.Version(nv))
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if err != nil {
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return err
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}
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fmt.Println("Total gas used: ", res.MsgRct.GasUsed)
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printInternalExecutions(0, []types.ExecutionTrace{res.ExecutionTrace}, tw)
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return tw.Flush()
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},
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}
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var replayOfflineCmd = &cli.Command{
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Name: "replay-offline",
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Description: "replay a message to get a gas trace",
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ArgsUsage: "[messageCid]",
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "repo",
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Value: "~/.lotus",
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},
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&cli.Int64Flag{
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Name: "lookback-limit",
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Value: 10000,
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},
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},
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Action: func(cctx *cli.Context) error {
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ctx := context.TODO()
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if cctx.NArg() != 1 {
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return lcli.IncorrectNumArgs(cctx)
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}
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messageCid, err := cid.Decode(cctx.Args().Get(0))
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if err != nil {
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return fmt.Errorf("failed to parse input: %w", err)
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}
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lookbackLimit := cctx.Int("lookback-limit")
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fsrepo, err := repo.NewFS(cctx.String("repo"))
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if err != nil {
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return err
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}
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lkrepo, err := fsrepo.Lock(repo.FullNode)
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if err != nil {
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return err
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}
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defer lkrepo.Close() //nolint:errcheck
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bs, err := lkrepo.Blockstore(ctx, repo.UniversalBlockstore)
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if err != nil {
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return fmt.Errorf("failed to open blockstore: %w", err)
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}
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defer func() {
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if c, ok := bs.(io.Closer); ok {
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if err := c.Close(); err != nil {
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log.Warnf("failed to close blockstore: %s", err)
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}
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}
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}()
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mds, err := lkrepo.Datastore(context.Background(), "/metadata")
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if err != nil {
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return err
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}
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dcs := build.DrandConfigSchedule()
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shd := beacon.Schedule{}
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for _, dc := range dcs {
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bc, err := drand.NewDrandBeacon(MAINNET_GENESIS_TIME, build.BlockDelaySecs, nil, dc.Config)
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if err != nil {
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return xerrors.Errorf("creating drand beacon: %w", err)
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}
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shd = append(shd, beacon.BeaconPoint{Start: dc.Start, Beacon: bc})
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}
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cs := store.NewChainStore(bs, bs, mds, filcns.Weight, nil)
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defer cs.Close() //nolint:errcheck
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sm, err := stmgr.NewStateManager(cs, filcns.NewTipSetExecutor(), vm.Syscalls(ffiwrapper.ProofVerifier), filcns.DefaultUpgradeSchedule(), shd)
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if err != nil {
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return err
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}
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msg, err := cs.GetMessage(ctx, messageCid)
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if err != nil {
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return err
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}
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err = cs.Load(ctx)
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if err != nil {
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return err
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}
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ts, _, _, err := sm.SearchForMessage(ctx, cs.GetHeaviestTipSet(), messageCid, abi.ChainEpoch(lookbackLimit), true)
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if err != nil {
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return err
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}
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if ts == nil {
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return xerrors.Errorf("could not find message within the last %d epochs", lookbackLimit)
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}
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executionTs, err := cs.GetTipsetByHeight(ctx, ts.Height()-2, ts, true)
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if err != nil {
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return err
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}
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tw := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', tabwriter.AlignRight)
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res, err := sm.CallWithGas(ctx, msg, []types.ChainMsg{}, executionTs)
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if err != nil {
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return err
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}
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fmt.Println("Total gas used: ", res.MsgRct.GasUsed)
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printInternalExecutions(0, []types.ExecutionTrace{res.ExecutionTrace}, tw)
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return tw.Flush()
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},
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}
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func printInternalExecutions(depth int, trace []types.ExecutionTrace, tw *tabwriter.Writer) {
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if depth == 0 {
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_, _ = fmt.Fprintf(tw, "Depth\tFrom\tTo\tMethod\tTotalGas\tComputeGas\tStorageGas\t\tExitCode\n")
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}
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for _, im := range trace {
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sumGas := im.SumGas()
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_, _ = fmt.Fprintf(tw, "%d\t%s\t%s\t%d\t%d\t%d\t%d\t\t%d\n", depth, truncateString(im.Msg.From.String(), 10), truncateString(im.Msg.To.String(), 10), im.Msg.Method, sumGas.TotalGas, sumGas.ComputeGas, sumGas.StorageGas, im.MsgRct.ExitCode)
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printInternalExecutions(depth+1, im.Subcalls, tw)
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}
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}
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func truncateString(str string, length int) string {
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if len(str) <= length {
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return str
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}
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truncated := ""
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count := 0
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for _, char := range str {
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truncated += string(char)
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count++
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if count >= length {
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break
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}
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}
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truncated += "..."
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return truncated
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}
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