Add GasStation predeploy

op-service/predeploys/addresses.go

@@ -31,6 +31,7 @@ const (
 	SuperchainWETH                = "0x4200000000000000000000000000000000000024"
 	ETHLiquidity                  = "0x4200000000000000000000000000000000000025"
 	SuperchainTokenBridge         = "0x4200000000000000000000000000000000000028"
+	GasStation                    = "0x4300000000000000000000000000000000000001"
 	Create2Deployer               = "0x13b0D85CcB8bf860b6b79AF3029fCA081AE9beF2"
 	MultiCall3                    = "0xcA11bde05977b3631167028862bE2a173976CA11"
 	Safe_v130                     = "0x69f4D1788e39c87893C980c06EdF4b7f686e2938"
@@ -72,6 +73,7 @@ var (
 	SuperchainWETHAddr                = common.HexToAddress(SuperchainWETH)
 	ETHLiquidityAddr                  = common.HexToAddress(ETHLiquidity)
 	SuperchainTokenBridgeAddr         = common.HexToAddress(SuperchainTokenBridge)
+	GasStationAddr                    = common.HexToAddress(GasStation)
 	Create2DeployerAddr               = common.HexToAddress(Create2Deployer)
 	MultiCall3Addr                    = common.HexToAddress(MultiCall3)
 	Safe_v130Addr                     = common.HexToAddress(Safe_v130)
@@ -174,6 +176,9 @@ func init() {
 		Address:       EntryPoint_v070Addr,
 		ProxyDisabled: true,
 	}
+	Predeploys["GasStation"] = &Predeploy{
+		Address: GasStationAddr,
+	}
 
 	for _, predeploy := range Predeploys {
 		PredeploysByAddress[predeploy.Address] = predeploy

packages/contracts-bedrock/scripts/L2Genesis.s.sol

@@ -32,6 +32,7 @@ import { ICrossDomainMessenger } from "interfaces/universal/ICrossDomainMessenge
 import { IL2CrossDomainMessenger } from "interfaces/L2/IL2CrossDomainMessenger.sol";
 import { IGasPriceOracle } from "interfaces/L2/IGasPriceOracle.sol";
 import { IL1Block } from "interfaces/L2/IL1Block.sol";
+import { GasStation } from "src/L2/GasStation.sol";
 
 struct L1Dependencies {
     address payable l1CrossDomainMessengerProxy;
@@ -243,6 +244,19 @@ contract L2Genesis is Deployer {
                 EIP1967Helper.setImplementation(addr, implementation);
             }
         }
+
+        // Handle GasStation separately since it's outside the 0x42 range
+        if (!Predeploys.notProxied(Predeploys.GAS_STATION)) {
+            console.log("Setting GasStation proxy at %s", Predeploys.GAS_STATION);
+            vm.etch(Predeploys.GAS_STATION, code);
+            EIP1967Helper.setAdmin(Predeploys.GAS_STATION, Predeploys.PROXY_ADMIN);
+
+            if (Predeploys.isSupportedPredeploy(Predeploys.GAS_STATION, cfg.useInterop())) {
+                address implementation = Predeploys.predeployToCodeNamespace(Predeploys.GAS_STATION);
+                console.log("Setting proxy %s implementation: %s", Predeploys.GAS_STATION, implementation);
+                EIP1967Helper.setImplementation(Predeploys.GAS_STATION, implementation);
+            }
+        }
     }
 
     /// @notice Sets all the implementations for the predeploy proxies. For contracts without proxies,
@@ -277,6 +291,7 @@ contract L2Genesis is Deployer {
         setSchemaRegistry(); // 20
         setEAS(); // 21
         setGovernanceToken(); // 42: OP (not behind a proxy)
+        setGasStation(); // 4300...01: GasStation (proxied)
         if (cfg.useInterop()) {
             setCrossL2Inbox(); // 22
             setL2ToL2CrossDomainMessenger(); // 23
@@ -675,4 +690,13 @@ contract L2Genesis is Deployer {
             vm.deal(devAccounts[i], DEV_ACCOUNT_FUND_AMT);
         }
     }
+
+    /// @notice This predeploy is following the safety invariant #1.
+    function setGasStation() internal {
+        address impl = _setImplementationCode(Predeploys.GAS_STATION);
+
+        GasStation(payable(impl)).initialize({ _dao: address(0) });
+
+        GasStation(payable(Predeploys.GAS_STATION)).initialize({ _dao: cfg.finalSystemOwner() });
+    }
 }