Merge remote-tracking branch 'origin/master' into execution-split

.clabot

@@ -0,0 +1,5 @@
+{
+  "contributors": "https://api.github.com/repos/OffchainLabs/clabot-config/contents/nitro-contributors.json",
+  "message": "We require contributors to sign our Contributor License Agreement. In order for us to review and merge your code, please sign the linked documents below to get yourself added. https://na3.docusign.net/Member/PowerFormSigning.aspx?PowerFormId=b15c81cc-b5ea-42a6-9107-3992526f2898&env=na3&acct=6e152afc-6284-44af-a4c1-d8ef291db402&v=2",
+  "label": "s"
+}

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: CI
+run-name: CI triggered from @${{ github.actor }} of ${{ github.head_ref }}
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - master
+
+jobs:
+  run-tests:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.19
+
+      - name: Test
+        run: make test

arbitrum/apibackend.go

@@ -68,7 +68,7 @@ func CreateFallbackClient(fallbackClientUrl string, fallbackClientTimeout time.D
 	var fallbackClient types.FallbackClient
 	var err error
 	fallbackClient, err = rpc.Dial(fallbackClientUrl)
-	if fallbackClient == nil || err != nil {
+	if err != nil {
 		return nil, fmt.Errorf("failed creating fallback connection: %w", err)
 	}
 	if fallbackClientTimeout != 0 {
@@ -172,7 +172,7 @@ func (a *APIBackend) SyncProgressMap() map[string]interface{} {
 func (a *APIBackend) SyncProgress() ethereum.SyncProgress {
 	progress := a.SyncProgressMap()
 
-	if progress == nil || len(progress) == 0 {
+	if len(progress) == 0 {
 		return ethereum.SyncProgress{}
 	}
 	return ethereum.SyncProgress{
@@ -191,7 +191,6 @@ func (a *APIBackend) FeeHistory(
 	newestBlock rpc.BlockNumber,
 	rewardPercentiles []float64,
 ) (*big.Int, [][]*big.Int, []*big.Int, []float64, error) {
-
 	if core.GetArbOSSpeedLimitPerSecond == nil {
 		return nil, nil, nil, nil, errors.New("ArbOS not installed")
 	}
@@ -230,7 +229,7 @@ func (a *APIBackend) FeeHistory(
 
 	// use the most recent average compute rate for all blocks
 	// note: while we could query this value for each block, it'd be prohibitively expensive
-	state, _, err := a.StateAndHeaderByNumber(ctx, rpc.BlockNumber(newestBlock))
+	state, _, err := a.StateAndHeaderByNumber(ctx, newestBlock)
 	if err != nil {
 		return common.Big0, nil, nil, nil, err
 	}
@@ -296,7 +295,6 @@ func (a *APIBackend) FeeHistory(
 			fullnessAnalogue = 1.0
 		}
 		gasUsed[block-oldestBlock] = fullnessAnalogue
-
 	}
 	if newestBlock == latestBlock {
 		basefees[blocks] = basefees[blocks-1] // guess the basefee won't change

arbitrum/recordingdb.go

@@ -113,9 +113,7 @@ func (db *RecordingKV) Close() error {
 	return nil
 }
 
-func (db *RecordingKV) Release() {
-	return
-}
+func (db *RecordingKV) Release() {}
 
 func (db *RecordingKV) GetRecordedEntries() map[common.Hash][]byte {
 	return db.readDbEntries
@@ -322,7 +320,7 @@ func (r *RecordingDatabase) GetOrRecreateState(ctx context.Context, header *type
 		}
 		err = r.addStateVerify(stateDb, block.Root())
 		if err != nil {
-			return nil, fmt.Errorf("failed commiting state for block %d : %w", blockToRecreate, err)
+			return nil, fmt.Errorf("failed committing state for block %d : %w", blockToRecreate, err)
 		}
 		r.dereferenceRoot(lastRoot)
 		lastRoot = block.Root()

core/state/snapshot/snapshot_test.go

@@ -241,6 +241,7 @@ func TestDiffLayerExternalInvalidationPartialFlatten(t *testing.T) {
 
 // TestPostCapBasicDataAccess tests some functionality regarding capping/flattening.
 func TestPostCapBasicDataAccess(t *testing.T) {
+	t.Skip("Arbitrum: Test fails due to our modifications to Tree.Cap function.")
 	// setAccount is a helper to construct a random account entry and assign it to
 	// an account slot in a snapshot
 	setAccount := func(accKey string) map[common.Hash][]byte {

core/state/statedb.go

@@ -430,10 +430,12 @@ func (s *StateDB) SubBalance(addr common.Address, amount *big.Int) {
 func (s *StateDB) SetBalance(addr common.Address, amount *big.Int) {
 	stateObject := s.GetOrNewStateObject(addr)
 	if stateObject != nil {
+		if amount == nil {
+			amount = big.NewInt(0)
+		}
 		prevBalance := stateObject.Balance()
 		s.unexpectedBalanceDelta.Add(s.unexpectedBalanceDelta, amount)
 		s.unexpectedBalanceDelta.Sub(s.unexpectedBalanceDelta, prevBalance)
-
 		stateObject.SetBalance(amount)
 	}
 }

core/state_transition.go

@@ -461,9 +461,10 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 
 	// Arbitrum: record self destructs
 	if st.evm.Config.Debug {
-		for _, address := range st.evm.StateDB.GetSuicides() {
+		suicides := st.evm.StateDB.GetSuicides()
+		for i, address := range suicides {
 			balance := st.evm.StateDB.GetBalance(address)
-			st.evm.Config.Tracer.CaptureArbitrumTransfer(st.evm, &address, nil, balance, false, "selfDestruct")
+			st.evm.Config.Tracer.CaptureArbitrumTransfer(st.evm, &suicides[i], nil, balance, false, "selfDestruct")
 		}
 	}
 
@@ -477,7 +478,6 @@ func (st *StateTransition) TransitionDb() (*ExecutionResult, error) {
 }
 
 func (st *StateTransition) refundGas(refundQuotient uint64) {
-
 	st.gasRemaining += st.evm.ProcessingHook.ForceRefundGas()
 
 	nonrefundable := st.evm.ProcessingHook.NonrefundableGas()

core/types/receipt_test.go

@@ -412,7 +412,7 @@ func clearComputedFieldsOnReceipt(receipt *Receipt) *Receipt {
 	cpy.BlockHash = common.Hash{0xff, 0xff, 0x22}
 	cpy.BlockNumber = big.NewInt(math.MaxUint32)
 	cpy.TransactionIndex = math.MaxUint32
-	cpy.ContractAddress = common.Address{0xff, 0xff, 0x33}
+	cpy.ContractAddress = common.Address{} // Arbitrum: we check address is blank before rederiving
 	cpy.GasUsed = 0xffffffff
 	cpy.Logs = clearComputedFieldsOnLogs(receipt.Logs)
 	return &cpy

core/types/transaction_marshalling.go

@@ -145,7 +145,7 @@ func (tx *Transaction) MarshalJSON() ([]byte, error) {
 		enc.Value = (*hexutil.Big)(itx.Value)
 		enc.To = tx.To()
 	case *ArbitrumUnsignedTx:
-		enc.From = (*common.Address)(&itx.From)
+		enc.From = &itx.From
 		enc.ChainID = (*hexutil.Big)(itx.ChainId)
 		enc.Nonce = (*hexutil.Uint64)(&itx.Nonce)
 		enc.Gas = (*hexutil.Uint64)(&itx.Gas)
@@ -163,7 +163,7 @@ func (tx *Transaction) MarshalJSON() ([]byte, error) {
 		enc.Data = (*hexutil.Bytes)(&itx.Data)
 		enc.To = tx.To()
 	case *ArbitrumRetryTx:
-		enc.From = (*common.Address)(&itx.From)
+		enc.From = &itx.From
 		enc.TicketId = &itx.TicketId
 		enc.RefundTo = &itx.RefundTo
 		enc.ChainID = (*hexutil.Big)(itx.ChainId)

core/vm/instructions.go

@@ -428,7 +428,6 @@ func opExtCodeHash(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext)
 }
 
 func opGasprice(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
-
 	// Arbitrum: provide an opportunity to remove the tip from the gas price
 	gasPrice := interpreter.evm.ProcessingHook.GasPriceOp(interpreter.evm)
 

core/vm/logger.go

@@ -28,7 +28,7 @@ import (
 // Note that reference types are actual VM data structures; make copies
 // if you need to retain them beyond the current call.
 type EVMLogger interface {
-	// Arbitrum: capture a transfer, mint, or burn that happens outside of EVM exectuion
+	// Arbitrum: capture a transfer, mint, or burn that happens outside of EVM execution
 	CaptureArbitrumTransfer(env *EVM, from, to *common.Address, value *big.Int, before bool, purpose string)
 	CaptureArbitrumStorageGet(key common.Hash, depth int, before bool)
 	CaptureArbitrumStorageSet(key, value common.Hash, depth int, before bool)

eth/tracers/internal/tracetest/calltrace_test.go

@@ -53,8 +53,19 @@ type callLog struct {
 	Data    hexutil.Bytes  `json:"data"`
 }
 
+type arbitrumTransfer struct {
+	Purpose string  `json:"purpose"`
+	From    *string `json:"from"`
+	To      *string `json:"to"`
+	Value   string  `json:"value"`
+}
+
 // callTrace is the result of a callTracer run.
 type callTrace struct {
+	// Arbitrum: we add these here due to the tracer returning the top frame
+	BeforeEVMTransfers *[]arbitrumTransfer `json:"beforeEVMTransfers,omitempty"`
+	AfterEVMTransfers  *[]arbitrumTransfer `json:"afterEVMTransfers,omitempty"`
+
 	From         common.Address  `json:"from"`
 	Gas          *hexutil.Uint64 `json:"gas"`
 	GasUsed      *hexutil.Uint64 `json:"gasUsed"`
@@ -327,7 +338,7 @@ func TestZeroValueToNotExitCall(t *testing.T) {
 	if err != nil {
 		t.Fatalf("failed to retrieve trace result: %v", err)
 	}
-	wantStr := `{"from":"0x682a80a6f560eec50d54e63cbeda1c324c5f8d1b","gas":"0x7148","gasUsed":"0x54d8","to":"0x00000000000000000000000000000000deadbeef","input":"0x","calls":[{"from":"0x00000000000000000000000000000000deadbeef","gas":"0x6cbf","gasUsed":"0x0","to":"0x00000000000000000000000000000000000000ff","input":"0x","value":"0x0","type":"CALL"}],"value":"0x0","type":"CALL"}`
+	wantStr := `{"beforeEVMTransfers":[{"purpose":"feePayment","from":"0x682a80a6f560eeC50d54E63CBeDa1c324C5F8d1b","to":null,"value":"0x0"}],"afterEVMTransfers":[{"purpose":"gasRefund","from":null,"to":"0x682a80a6f560eeC50d54E63CBeDa1c324C5F8d1b","value":"0x0"},{"purpose":"tip","from":null,"to":"0x0000000000000000000000000000000000000000","value":"0x0"}],"from":"0x682a80a6f560eec50d54e63cbeda1c324c5f8d1b","gas":"0x7148","gasUsed":"0x54d8","to":"0x00000000000000000000000000000000deadbeef","input":"0x","calls":[{"from":"0x00000000000000000000000000000000deadbeef","gas":"0x6cbf","gasUsed":"0x0","to":"0x00000000000000000000000000000000000000ff","input":"0x","value":"0x0","type":"CALL"}],"value":"0x0","type":"CALL"}`
 	if string(res) != wantStr {
 		t.Fatalf("trace mismatch\n have: %v\n want: %v\n", string(res), wantStr)
 	}

eth/tracers/internal/tracetest/testdata/call_tracer/create.json

@@ -46,7 +46,29 @@
   },
   "input": "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",
   "result": {
-    "from": "0x13e4acefe6a6700604929946e70e6443e4e73447",
+    "beforeEVMTransfers": [
+      {
+        "purpose": "feePayment",
+        "from": "0x13e4ACeFE6a6700604929946E70E6443E4E73447",
+        "to": null,
+        "value": "0x2a0383e2a65c00"
+      }
+    ],
+    "afterEVMTransfers": [
+      {
+        "purpose": "gasRefund",
+        "from": null,
+        "to": "0x13e4ACeFE6a6700604929946E70E6443E4E73447",
+        "value": "0x0"
+      },
+      {
+        "purpose": "tip",
+        "from": null,
+        "to": "0xD049bfd667cB46Aa3Ef5Df0dA3e57DB3Be39E511",
+        "value": "0x2a0383e2a65c00"
+      }
+    ],
+	"from": "0x13e4acefe6a6700604929946e70e6443e4e73447",
     "gas": "0x5e106",
     "gasUsed": "0x897be",
     "input": "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",

eth/tracers/internal/tracetest/testdata/call_tracer/deep_calls.json

@@ -109,7 +109,29 @@
   },
   "input": "0xf88b8206628504a817c8008303d09094c212e03b9e060e36facad5fd8f4435412ca22e6b80a451a34eb80000000000000000000000000000000000000000000000280faf689c35ac00002aa0a7ee5b7877811bf671d121b40569462e722657044808dc1d6c4f1e4233ec145ba0417e7543d52b65738d9df419cbe40a708424f4d54b0fc145c0a64545a2bb1065",
   "result": {
-    "calls": [
+    "beforeEVMTransfers": [
+      {
+        "purpose": "feePayment",
+        "from": "0x70C9217D814985faEF62B124420F8dFbdDD96433",
+        "to": null,
+        "value": "0x11c37937e08000"
+      }
+    ],
+    "afterEVMTransfers": [
+      {
+        "purpose": "gasRefund",
+        "from": null,
+        "to": "0x70C9217D814985faEF62B124420F8dFbdDD96433",
+        "value": "0xac27a3b12e800"
+      },
+      {
+        "purpose": "tip",
+        "from": null,
+        "to": "0x1977C248e1014Cc103929Dd7f154199C916E39Ec",
+        "value": "0x700fefccd9800"
+      }
+    ],
+	"calls": [
       {
         "from": "0xc212e03b9e060e36facad5fd8f4435412ca22e6b",
         "gas": "0x31217",

eth/tracers/internal/tracetest/testdata/call_tracer/delegatecall.json

@@ -62,6 +62,28 @@
   },
   "input": "0xf889448504a817c800832dc6c094269296dddce321a6bcbaa2f0181127593d732cba80a47065cb480000000000000000000000001523e55a1ca4efbae03355775ae89f8d7699ad9e29a080ed81e4c5e9971a730efab4885566e2c868cd80bd4166d0ed8c287fdf181650a069d7c49215e3d4416ad239cd09dbb71b9f04c16b33b385d14f40b618a7a65115",
   "result": {
+    "beforeEVMTransfers": [
+      {
+        "purpose": "feePayment",
+        "from": "0xA529806c67cc6486d4D62024471772F47F6FD672",
+        "to": null,
+        "value": "0xd529ae9e860000"
+      }
+    ],
+    "afterEVMTransfers": [
+      {
+        "purpose": "gasRefund",
+        "from": null,
+        "to": "0xA529806c67cc6486d4D62024471772F47F6FD672",
+        "value": "0xd1b8093ff89800"
+      },
+      {
+        "purpose": "tip",
+        "from": null,
+        "to": "0x5659922cE141EedBC2733678f9806c77b4eEBEE8",
+        "value": "0x371a55e8d6800"
+      }
+    ],
     "calls": [
       {
         "calls": [