Start chain from bellatrix state

beacon-chain/blockchain/log.go

@@ -87,6 +87,7 @@ func logBlockSyncStatus(block interfaces.BeaconBlock, blockRoot [32]byte, justif
 			"version":                   version.String(block.Version()),
 			"sinceSlotStartTime":        prysmTime.Now().Sub(startTime),
 			"chainServiceProcessedTime": prysmTime.Now().Sub(receivedTime),
+			"deposits":                  len(block.Body().Deposits()),
 		}).Debug("Synced new block")
 	} else {
 		log.WithFields(logrus.Fields{

beacon-chain/core/blocks/BUILD.bazel

@@ -19,12 +19,7 @@ go_library(
         "withdrawals.go",
     ],
     importpath = "github.com/prysmaticlabs/prysm/v3/beacon-chain/core/blocks",
-    visibility = [
-        "//beacon-chain:__subpackages__",
-        "//testing/spectest:__subpackages__",
-        "//testing/util:__pkg__",
-        "//validator:__subpackages__",
-    ],
+    visibility = ["//visibility:public"],
     deps = [
         "//beacon-chain/core/helpers:go_default_library",
         "//beacon-chain/core/signing:go_default_library",

beacon-chain/core/blocks/genesis.go

@@ -3,9 +3,16 @@
 package blocks
 
 import (
+	"context"
+
+	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/v3/beacon-chain/state"
 	fieldparams "github.com/prysmaticlabs/prysm/v3/config/fieldparams"
 	"github.com/prysmaticlabs/prysm/v3/config/params"
+	"github.com/prysmaticlabs/prysm/v3/consensus-types/blocks"
+	"github.com/prysmaticlabs/prysm/v3/consensus-types/interfaces"
 	"github.com/prysmaticlabs/prysm/v3/encoding/bytesutil"
+	enginev1 "github.com/prysmaticlabs/prysm/v3/proto/engine/v1"
 	ethpb "github.com/prysmaticlabs/prysm/v3/proto/prysm/v1alpha1"
 )
 
@@ -29,3 +36,64 @@ func NewGenesisBlock(stateRoot []byte) *ethpb.SignedBeaconBlock {
 	}
 	return block
 }
+
+var ErrUnrecognizedState = errors.New("uknonwn underlying type for state.BeaconState value")
+
+func NewGenesisBlockForState(ctx context.Context, st state.BeaconState) (interfaces.SignedBeaconBlock, error) {
+	root, err := st.HashTreeRoot(ctx)
+	if err != nil {
+		return nil, err
+	}
+	ps := st.ToProto()
+	switch ps.(type) {
+	case *ethpb.BeaconState, *ethpb.BeaconStateAltair:
+		return blocks.NewSignedBeaconBlock(&ethpb.SignedBeaconBlock{
+			Block: &ethpb.BeaconBlock{
+				ParentRoot: params.BeaconConfig().ZeroHash[:],
+				StateRoot:  root[:],
+				Body: &ethpb.BeaconBlockBody{
+					RandaoReveal: make([]byte, fieldparams.BLSSignatureLength),
+					Eth1Data: &ethpb.Eth1Data{
+						DepositRoot: make([]byte, 32),
+						BlockHash:   make([]byte, 32),
+					},
+					Graffiti: make([]byte, 32),
+				},
+			},
+			Signature: params.BeaconConfig().EmptySignature[:],
+		})
+	case *ethpb.BeaconStateBellatrix:
+		return blocks.NewSignedBeaconBlock(&ethpb.SignedBeaconBlockBellatrix{
+			Block: &ethpb.BeaconBlockBellatrix{
+				ParentRoot: params.BeaconConfig().ZeroHash[:],
+				StateRoot:  root[:],
+				Body: &ethpb.BeaconBlockBodyBellatrix{
+					RandaoReveal: make([]byte, 96),
+					Eth1Data: &ethpb.Eth1Data{
+						DepositRoot: make([]byte, 32),
+						BlockHash:   make([]byte, 32),
+					},
+					Graffiti: make([]byte, 32),
+					SyncAggregate: &ethpb.SyncAggregate{
+						SyncCommitteeBits:      make([]byte, fieldparams.SyncCommitteeLength/8),
+						SyncCommitteeSignature: make([]byte, fieldparams.BLSSignatureLength),
+					},
+					ExecutionPayload: &enginev1.ExecutionPayload{
+						ParentHash:    make([]byte, 32),
+						FeeRecipient:  make([]byte, 20),
+						StateRoot:     make([]byte, 32),
+						ReceiptsRoot:  make([]byte, 32),
+						LogsBloom:     make([]byte, 256),
+						PrevRandao:    make([]byte, 32),
+						BaseFeePerGas: make([]byte, 32),
+						BlockHash:     make([]byte, 32),
+						Transactions:  make([][]byte, 0),
+					},
+				},
+			},
+			Signature: params.BeaconConfig().EmptySignature[:],
+		})
+	default:
+		return nil, ErrUnrecognizedState
+	}
+}

beacon-chain/core/transition/BUILD.bazel

@@ -6,6 +6,7 @@ go_library(
         "log.go",
         "skip_slot_cache.go",
         "state.go",
+        "state-bellatrix.go",
         "trailing_slot_state_cache.go",
         "transition.go",
         "transition_no_verify_sig.go",
@@ -36,6 +37,7 @@ go_library(
         "//beacon-chain/state:go_default_library",
         "//beacon-chain/state/state-native:go_default_library",
         "//beacon-chain/state/stateutil:go_default_library",
+        "//config/fieldparams:go_default_library",
         "//config/params:go_default_library",
         "//consensus-types/blocks:go_default_library",
         "//consensus-types/interfaces:go_default_library",
@@ -45,6 +47,7 @@ go_library(
         "//encoding/bytesutil:go_default_library",
         "//math:go_default_library",
         "//monitoring/tracing:go_default_library",
+        "//proto/engine/v1:go_default_library",
         "//proto/prysm/v1alpha1:go_default_library",
         "//runtime/version:go_default_library",
         "@com_github_pkg_errors//:go_default_library",