core/vm/runtime: set random to enable merge-opcodes (#29799)

core/vm/runtime/runtime.go

@@ -57,6 +57,10 @@ type Config struct {
 // sets defaults on the config
 func setDefaults(cfg *Config) {
 	if cfg.ChainConfig == nil {
+		var (
+			shanghaiTime = uint64(0)
+			cancunTime   = uint64(0)
+		)
 		cfg.ChainConfig = &params.ChainConfig{
 			ChainID:                       big.NewInt(1),
 			HomesteadBlock:                new(big.Int),
@@ -72,9 +76,14 @@ func setDefaults(cfg *Config) {
 			MuirGlacierBlock:              new(big.Int),
 			BerlinBlock:                   new(big.Int),
 			LondonBlock:                   new(big.Int),
+			ArrowGlacierBlock:             nil,
+			GrayGlacierBlock:              nil,
+			TerminalTotalDifficulty:       big.NewInt(0),
+			TerminalTotalDifficultyPassed: true,
+			MergeNetsplitBlock:            nil,
+			ShanghaiTime:                  &shanghaiTime,
+			CancunTime:                    &cancunTime}
 	}
-	}
-
 	if cfg.Difficulty == nil {
 		cfg.Difficulty = new(big.Int)
 	}
@@ -101,6 +110,10 @@ func setDefaults(cfg *Config) {
 	if cfg.BlobBaseFee == nil {
 		cfg.BlobBaseFee = big.NewInt(params.BlobTxMinBlobGasprice)
 	}
+	// Merge indicators
+	if t := cfg.ChainConfig.ShanghaiTime; cfg.ChainConfig.TerminalTotalDifficultyPassed || (t != nil && *t == 0) {
+		cfg.Random = &(common.Hash{})
+	}
 }
 
 // Execute executes the code using the input as call data during the execution.

core/vm/runtime/runtime_test.go

@@ -105,7 +105,7 @@ func TestExecute(t *testing.T) {
 
 func TestCall(t *testing.T) {
 	state, _ := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
-	address := common.HexToAddress("0x0a")
+	address := common.HexToAddress("0xaa")
 	state.SetCode(address, []byte{
 		byte(vm.PUSH1), 10,
 		byte(vm.PUSH1), 0,
@@ -725,7 +725,7 @@ func TestRuntimeJSTracer(t *testing.T) {
 				byte(vm.CREATE),
 				byte(vm.POP),
 			},
-			results: []string{`"1,1,952855,6,12"`, `"1,1,952855,6,0"`},
+			results: []string{`"1,1,952853,6,12"`, `"1,1,952853,6,0"`},
 		},
 		{
 			// CREATE2
@@ -741,7 +741,7 @@ func TestRuntimeJSTracer(t *testing.T) {
 				byte(vm.CREATE2),
 				byte(vm.POP),
 			},
-			results: []string{`"1,1,952846,6,13"`, `"1,1,952846,6,0"`},
+			results: []string{`"1,1,952844,6,13"`, `"1,1,952844,6,0"`},
 		},
 		{
 			// CALL