add OnSystemCallStartV2

core/state_processor.go

@@ -208,8 +208,10 @@ func ApplyTransaction(config *params.ChainConfig, bc ChainContext, author *commo
 // contract. This method is exported to be used in tests.
 func ProcessBeaconBlockRoot(beaconRoot common.Hash, vmenv *vm.EVM, statedb *state.StateDB) {
 	if tracer := vmenv.Config.Tracer; tracer != nil {
-		if tracer.OnSystemCallStart != nil {
-			tracer.OnSystemCallStart(vmenv.GetVMContext())
+		if tracer.OnSystemCallStartV2 != nil {
+			tracer.OnSystemCallStartV2(vmenv.GetVMContext())
+		} else if tracer.OnSystemCallStart != nil {
+			tracer.OnSystemCallStart()
 		}
 		if tracer.OnSystemCallEnd != nil {
 			defer tracer.OnSystemCallEnd()
@@ -237,8 +239,10 @@ func ProcessBeaconBlockRoot(beaconRoot common.Hash, vmenv *vm.EVM, statedb *stat
 // as per EIP-2935.
 func ProcessParentBlockHash(prevHash common.Hash, vmenv *vm.EVM, statedb *state.StateDB) {
 	if tracer := vmenv.Config.Tracer; tracer != nil {
-		if tracer.OnSystemCallStart != nil {
-			tracer.OnSystemCallStart(vmenv.GetVMContext())
+		if tracer.OnSystemCallStartV2 != nil {
+			tracer.OnSystemCallStartV2(vmenv.GetVMContext())
+		} else if tracer.OnSystemCallStart != nil {
+			tracer.OnSystemCallStart()
 		}
 		if tracer.OnSystemCallEnd != nil {
 			defer tracer.OnSystemCallEnd()

core/tracing/hooks.go

@@ -148,7 +148,11 @@ type (
 	//
 	// Note that system call happens outside normal transaction execution, so the `OnTxStart/OnTxEnd` hooks
 	// will not be invoked.
-	OnSystemCallStartHook = func(vm *VMContext)
+	OnSystemCallStartHook = func()
+
+	// OnSystemCallStartHookV2 is called when a system call is about to be executed. Refer
+	// to `OnSystemCallStartHook` for more information.
+	OnSystemCallStartHookV2 = func(vm *VMContext)
 
 	// OnSystemCallEndHook is called when a system call has finished executing. Today,
 	// this hook is invoked when the EIP-4788 system call is about to be executed to set the
@@ -214,6 +218,7 @@ type Hooks struct {
 	OnGenesisBlock      GenesisBlockHook
 	OnReorg             ReorgHook
 	OnSystemCallStart   OnSystemCallStartHook
+	OnSystemCallStartV2 OnSystemCallStartHookV2
 	OnSystemCallEnd     OnSystemCallEndHook
 	// State events
 	OnBalanceChange BalanceChangeHook

eth/tracers/logger/logger_json.go

@@ -127,7 +127,7 @@ func (l *jsonLogger) OnOpcode(pc uint64, op byte, gas, cost uint64, scope tracin
 	l.encoder.Encode(log)
 }
 
-func (l *jsonLogger) onSystemCallStart(_ *tracing.VMContext) {
+func (l *jsonLogger) onSystemCallStart() {
 	// Process no events while in system call.
 	hooks := *l.hooks
 	*l.hooks = tracing.Hooks{