core/tracing: add vm context to system call hook

core/state_processor.go

@@ -183,7 +183,7 @@ func ApplyTransaction(config *params.ChainConfig, bc ChainContext, author *commo
 func ProcessBeaconBlockRoot(beaconRoot common.Hash, vmenv *vm.EVM, statedb *state.StateDB) {
 	if tracer := vmenv.Config.Tracer; tracer != nil {
 		if tracer.OnSystemCallStart != nil {
-			tracer.OnSystemCallStart()
+			tracer.OnSystemCallStart(vmenv.GetVMContext())
 		}
 		if tracer.OnSystemCallEnd != nil {
 			defer tracer.OnSystemCallEnd()
@@ -212,7 +212,7 @@ func ProcessBeaconBlockRoot(beaconRoot common.Hash, vmenv *vm.EVM, statedb *stat
 func ProcessParentBlockHash(prevHash common.Hash, vmenv *vm.EVM, statedb *state.StateDB) {
 	if tracer := vmenv.Config.Tracer; tracer != nil {
 		if tracer.OnSystemCallStart != nil {
-			tracer.OnSystemCallStart()
+			tracer.OnSystemCallStart(vmenv.GetVMContext())
 		}
 		if tracer.OnSystemCallEnd != nil {
 			defer tracer.OnSystemCallEnd()

core/tracing/hooks.go

@@ -142,7 +142,7 @@ type (
 	//
 	// Note that system call happens outside normal transaction execution, so the `OnTxStart/OnTxEnd` hooks
 	// will not be invoked.
-	OnSystemCallStartHook = func()
+	OnSystemCallStartHook = 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

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() {
+func (l *jsonLogger) onSystemCallStart(_ *tracing.VMContext) {
 	// Process no events while in system call.
 	hooks := *l.hooks
 	*l.hooks = tracing.Hooks{