feat: support override for both evm and cosmos states

CHANGELOG.md

@@ -38,6 +38,7 @@
 - [\#658](https://github.com/cosmos/evm/pull/658) Fix race condition between legacypool's RemoveTx and runReorg.
 - [\#687](https://github.com/cosmos/evm/pull/687) Avoid blocking node shutdown when evm indexer is enabled, log startup failures instead of using errgroup.
 - [\#689](https://github.com/cosmos/evm/pull/689) Align debug addr for hex address.
+- [\#713](https://github.com/cosmos/evm/pull/713) Support cosmos state overrides in eth_call for dynamic precompiles.
 - [\#668](https://github.com/cosmos/evm/pull/668) Fix panic in legacy mempool when Reset() was called with a skipped header between old and new block.
 - [\#723](https://github.com/cosmos/evm/pull/723) Fix TransactionIndex in receipt generation to use actual EthTxIndex instead of loop index.
 - [\#729](https://github.com/cosmos/evm/pull/729) Remove non-deterministic state mutation from EVM pre-blocker.

proto/cosmos/evm/vm/v1/query.proto

@@ -92,6 +92,11 @@ service Query {
     option (google.api.http).get = "/cosmos/evm/vm/v1/config";
   }
 
+  // Precompile queries if an address is a precompile (static or dynamic)
+  rpc Precompile(QueryPrecompileRequest) returns (QueryPrecompileResponse) {
+    option (google.api.http).get = "/cosmos/evm/vm/v1/precompile/{address}";
+  }
+
   // GlobalMinGasPrice queries the MinGasPrice
   // it's similar to feemarket module's method,
   // but makes the conversion to 18 decimals
@@ -111,6 +116,18 @@ message QueryConfigResponse {
   ChainConfig config = 1;
 }
 
+// QueryPrecompileRequest defines the request type for querying if an address is a precompile
+message QueryPrecompileRequest {
+  // address is the ethereum hex address to check
+  string address = 1;
+}
+
+// QueryPrecompileResponse returns information about whether the address is a precompile
+message QueryPrecompileResponse {
+  // is_precompile indicates if the address is a precompile contract
+  bool is_precompile = 1;
+}
+
 // QueryAccountRequest is the request type for the Query/Account RPC method.
 message QueryAccountRequest {
   option (gogoproto.equal) = false;
@@ -251,6 +268,19 @@ message QueryParamsResponse {
       [ (gogoproto.nullable) = false, (amino.dont_omitempty) = true ];
 }
 
+// StateEntry defines a single state change operation
+message StateEntry {
+  bytes key = 1;
+  bytes value = 2;
+  bool delete = 3;
+}
+
+// StoreStateDiff defines a set of state changes for a single store
+message StoreStateDiff {
+  string name = 1;
+  repeated StateEntry entries = 2 [ (gogoproto.nullable) = false ];
+}
+
 // EthCallRequest defines EthCall request
 message EthCallRequest {
   // args uses the same json format as the json rpc api.
@@ -265,6 +295,8 @@ message EthCallRequest {
   int64 chain_id = 4;
   // state overrides encoded as json
   bytes overrides = 5;
+  // state_overrides represents the state overrides before executing the call
+  repeated StoreStateDiff state_overrides = 6 [ (gogoproto.nullable) = false ];
 }
 
 // EstimateGasResponse defines EstimateGas response

rpc/backend/call_tx.go

@@ -384,19 +384,6 @@ func (b *Backend) DoCall(
 		return nil, errors.New("header not found")
 	}
 
-	var bzOverrides []byte
-	if overrides != nil {
-		bzOverrides = *overrides
-	}
-
-	req := evmtypes.EthCallRequest{
-		Args:            bz,
-		GasCap:          b.RPCGasCap(),
-		ProposerAddress: sdk.ConsAddress(header.Header.ProposerAddress),
-		ChainId:         b.EvmChainID.Int64(),
-		Overrides:       bzOverrides,
-	}
-
 	// From ContextWithHeight: if the provided height is 0,
 	// it will return an empty context and the gRPC query will use
 	// the latest block height for querying.
@@ -416,6 +403,36 @@ func (b *Backend) DoCall(
 	// this makes sure resources are cleaned up.
 	defer cancel()
 
+	var isPrecompile bool
+	if args.To != nil {
+		precompileReq := &evmtypes.QueryPrecompileRequest{Address: args.To.Hex()}
+		if res, err := b.QueryClient.Precompile(ctx, precompileReq); err == nil {
+			isPrecompile = res.IsPrecompile
+		}
+	}
+
+	evmOverrides, cosmosOverrides, err := rpctypes.ParseOverrides(overrides, isPrecompile)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse overrides: %w", err)
+	}
+
+	var bzOverrides []byte
+	if evmOverrides != nil {
+		bzOverrides, err = json.Marshal(evmOverrides)
+		if err != nil {
+			return nil, fmt.Errorf("failed to marshal EVM overrides: %w", err)
+		}
+	}
+
+	req := evmtypes.EthCallRequest{
+		Args:            bz,
+		GasCap:          b.RPCGasCap(),
+		ProposerAddress: sdk.ConsAddress(header.Header.ProposerAddress),
+		ChainId:         b.EvmChainID.Int64(),
+		Overrides:       bzOverrides,
+		StateOverrides:  cosmosOverrides,
+	}
+
 	res, err := b.QueryClient.EthCall(ctx, &req)
 	if err != nil {
 		return nil, err