internal/ethapi: use overriden baseFee for gasPrice (#29051)

commit ethereum/go-ethereum@e47a7c2.

eth_call and debug_traceCall allow users to override various block fields,
among them base fee. However the overriden base fee was not considered for
computing the effective gas price of that message, and instead base fee of the
base block was used. This has been fixed in this commit.

eth/tracers/api.go

@@ -1054,7 +1054,7 @@ func (api *API) TraceCall(ctx context.Context, args ethapi.TransactionArgs, bloc
 		config.BlockOverrides.Apply(&vmctx)
 	}
 	// Execute the trace
-	msg, err := args.ToMessage(api.backend.RPCGasCap(), block.BaseFee())
+	msg, err := args.ToMessage(api.backend.RPCGasCap(), vmctx.BaseFee)
 	if err != nil {
 		return nil, err
 	}

internal/ethapi/api.go

@@ -1054,14 +1054,14 @@ func doCall(
 	defer cancel()
 
 	// Get a new instance of the EVM.
-	msg, err := args.ToMessage(globalGasCap, header.BaseFee)
-	if err != nil {
-		return nil, err
-	}
 	blockCtx := core.NewEVMBlockContext(header, NewChainContext(ctx, b), nil)
 	if blockOverrides != nil {
 		blockOverrides.Apply(&blockCtx)
 	}
+	msg, err := args.ToMessage(globalGasCap, blockCtx.BaseFee)
+	if err != nil {
+		return nil, err
+	}
 	evm, vmError, err := b.GetEVM(ctx, msg, state, header, &vm.Config{NoBaseFee: true}, &blockCtx)
 	if err != nil {
 		return nil, err