fix: backport msg size and uint64 fixes

v2/contracts/Revert.sol

@@ -21,7 +21,7 @@ struct RevertOptions {
 /// @param revertMessage Arbitrary data sent back in onRevert.
 struct RevertContext {
     address asset;
-    uint64 amount;
+    uint256 amount;
     bytes revertMessage;
 }
 

v2/contracts/evm/GatewayEVM.sol

@@ -42,6 +42,8 @@ contract GatewayEVM is
     bytes32 public constant ASSET_HANDLER_ROLE = keccak256("ASSET_HANDLER_ROLE");
     /// @notice New role identifier for pauser role.
     bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
+    /// @notice Max size of payload + revertOptions revert message.
+    uint256 public constant MAX_PAYLOAD_SIZE = 1024;
 
     /// @custom:oz-upgrades-unsafe-allow constructor
     constructor() {
@@ -280,6 +282,7 @@ contract GatewayEVM is
     {
         if (msg.value == 0) revert InsufficientETHAmount();
         if (receiver == address(0)) revert ZeroAddress();
+        if (payload.length + revertOptions.revertMessage.length >= MAX_PAYLOAD_SIZE) revert PayloadSizeExceeded();
 
         (bool deposited,) = tssAddress.call{ value: msg.value }("");
 
@@ -307,6 +310,7 @@ contract GatewayEVM is
     {
         if (amount == 0) revert InsufficientERC20Amount();
         if (receiver == address(0)) revert ZeroAddress();
+        if (payload.length + revertOptions.revertMessage.length >= MAX_PAYLOAD_SIZE) revert PayloadSizeExceeded();
 
         transferFromToAssetHandler(msg.sender, asset, amount);
 
@@ -327,6 +331,8 @@ contract GatewayEVM is
         nonReentrant
     {
         if (receiver == address(0)) revert ZeroAddress();
+        if (payload.length + revertOptions.revertMessage.length >= MAX_PAYLOAD_SIZE) revert PayloadSizeExceeded();
+
         emit Called(msg.sender, receiver, payload, revertOptions);
     }
 

v2/contracts/evm/interfaces/IGatewayEVM.sol

@@ -87,6 +87,9 @@ interface IGatewayEVMErrors {
 
     /// @notice Error when trying to call onRevert method using arbitrary call.
     error NotAllowedToCallOnRevert();
+
+    /// @notice Error indicating payload size exceeded in external functions.
+    error PayloadSizeExceeded();
 }
 
 /// @title IGatewayEVM

v2/contracts/zevm/GatewayZEVM.sol

@@ -36,6 +36,9 @@ contract GatewayZEVM is
     /// @notice New role identifier for pauser role.
     bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");
 
+    /// @notice Max size of message + revertOptions revert message.
+    uint256 public constant MAX_MESSAGE_SIZE = 1024;
+
     /// @dev Only Fungible module address allowed modifier.
     modifier onlyFungible() {
         if (msg.sender != FUNGIBLE_MODULE_ADDRESS) {
@@ -178,6 +181,7 @@ contract GatewayZEVM is
         if (receiver.length == 0) revert ZeroAddress();
         if (amount == 0) revert InsufficientZRC20Amount();
         if (gasLimit == 0) revert InsufficientGasLimit();
+        if (message.length + revertOptions.revertMessage.length >= MAX_MESSAGE_SIZE) revert MessageSizeExceeded();
 
         uint256 gasFee = _withdrawZRC20WithGasLimit(amount, zrc20, gasLimit);
         emit Withdrawn(
@@ -234,6 +238,7 @@ contract GatewayZEVM is
     {
         if (receiver.length == 0) revert ZeroAddress();
         if (amount == 0) revert InsufficientZetaAmount();
+        if (message.length + revertOptions.revertMessage.length >= MAX_MESSAGE_SIZE) revert MessageSizeExceeded();
 
         _transferZETA(amount, FUNGIBLE_MODULE_ADDRESS);
         emit Withdrawn(msg.sender, chainId, receiver, address(zetaToken), amount, 0, 0, message, 0, revertOptions);
@@ -257,8 +262,8 @@ contract GatewayZEVM is
         whenNotPaused
     {
         if (receiver.length == 0) revert ZeroAddress();
-        if (message.length == 0) revert EmptyMessage();
         if (gasLimit == 0) revert InsufficientGasLimit();
+        if (message.length + revertOptions.revertMessage.length >= MAX_MESSAGE_SIZE) revert MessageSizeExceeded();
 
         (address gasZRC20, uint256 gasFee) = IZRC20(zrc20).withdrawGasFeeWithGasLimit(gasLimit);
         if (!IZRC20(gasZRC20).transferFrom(msg.sender, FUNGIBLE_MODULE_ADDRESS, gasFee)) {

v2/contracts/zevm/interfaces/IGatewayZEVM.sol

@@ -84,11 +84,11 @@ interface IGatewayZEVMErrors {
     /// @notice Error indicating that only WZETA or the Fungible module can call the function.
     error OnlyWZETAOrFungible();
 
-    /// @notice Error indicating call method received empty message as argument.
-    error EmptyMessage();
-
     /// @notice Error indicating an insufficient gas limit.
     error InsufficientGasLimit();
+
+    /// @notice Error indicating message size exceeded in external functions.
+    error MessageSizeExceeded();
 }
 
 /// @title IGatewayZEVM