Precompiles (#201)

* Moved PR to monorepo

* Update evm-template/runtime/src/lib.rs

Co-authored-by: Amar Singh <asinghchrony@protonmail.com>

* minimal precompile config

* try fix remaining merge conflicts by accepting all incoming

* into merge again

* clippy fix

* use workspace dep as per suggestion

* try fix

* insert revert bytecode in evm account storage at genesis for precompile addresses

* toml sort

---------

Co-authored-by: Nikita Khateev <nikita.khateev@openzeppelin.com>

evm-template/node/Cargo.toml

@@ -82,6 +82,7 @@ fc-rpc = { workspace = true }
 fc-rpc-core = { workspace = true }
 fc-storage = { workspace = true }
 fp-dynamic-fee = { workspace = true, features = [ "std" ] }
+fp-evm = { workspace = true }
 fp-rpc = { workspace = true }
 
 [build-dependencies]

evm-template/node/src/chain_spec.rs

@@ -1,12 +1,16 @@
+use std::collections::BTreeMap;
+
 use cumulus_primitives_core::ParaId;
+use fp_evm::GenesisAccount;
 use hex_literal::hex;
 use parachain_template_runtime::{
-    constants::currency::EXISTENTIAL_DEPOSIT, AccountId, AuraId, Signature,
+    constants::currency::EXISTENTIAL_DEPOSIT, AccountId, AuraId,
+    OpenZeppelinPrecompiles as Precompiles, Runtime, Signature,
 };
 use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
 use sc_service::ChainType;
 use serde::{Deserialize, Serialize};
-use sp_core::{ecdsa, Pair, Public};
+use sp_core::{ecdsa, Pair, Public, H160};
 use sp_runtime::traits::{IdentifyAccount, Verify};
 
 /// Specialized `ChainSpec` for the normal parachain runtime.
@@ -200,6 +204,24 @@ fn testnet_genesis(
         "evmChainId": {
             "chainId": 9999
         },
+        "evm": {
+            "accounts": Precompiles::<Runtime>::used_addresses()
+                .map(|addr| {
+                    (
+                        addr,
+                        GenesisAccount {
+                            nonce: Default::default(),
+                            balance: Default::default(),
+                            storage: Default::default(),
+                            // bytecode to revert without returning data
+                            // (PUSH1 0x00 PUSH1 0x00 REVERT)
+                            code: vec![0x60, 0x00, 0x60, 0x00, 0xFD],
+                        },
+                    )
+                })
+                .into_iter()
+                .collect::<BTreeMap<H160, GenesisAccount>>(),
+        },
         "polkadotXcm": {
             "safeXcmVersion": Some(SAFE_XCM_VERSION),
         },