Merge branch 'oz-audit-sep-base' into library-fix-review

.github/workflows/l1-contracts-ci.yaml

@@ -121,6 +121,7 @@ jobs:
             l2-contracts/artifacts-zk
             l2-contracts/cache-zk
             l2-contracts/typechain
+            l1-contracts/lib
 
       - name: Run tests
         working-directory: ./l1-contracts
@@ -162,6 +163,7 @@ jobs:
             l2-contracts/artifacts-zk
             l2-contracts/cache-zk
             l2-contracts/typechain
+            l1-contracts/lib
 
       - name: Install foundry zksync
         run: |
@@ -217,9 +219,6 @@ jobs:
       - name: Build L2 contracts
         run: yarn l2 build
 
-      - name: Build L2 contracts
-        run: yarn l2 build
-
       - name: Run tests
         run: yarn l1 test --no-compile
 
@@ -283,6 +282,7 @@ jobs:
             l2-contracts/artifacts-zk
             l2-contracts/cache-zk
             l2-contracts/typechain
+            l1-contracts/lib
 
       - name: Run coverage
         run: FOUNDRY_PROFILE=default yarn test:foundry && FOUNDRY_PROFILE=default yarn coverage:foundry --report summary --report lcov

README.md

@@ -7,8 +7,7 @@ decentralization. Since it's EVM compatible (Solidity/Vyper), 99% of Ethereum pr
 or re-auditing a single line of code. ZKsync Era also uses an LLVM-based compiler that will eventually let developers
 write smart contracts in C++, Rust and other popular languages.
 
-This repository contains both L1 and L2 ZKsync smart contracts. For their description see the
-[system overview](docs/overview.md).
+This repository contains both L1 and L2 ZKsync smart contracts.
 
 ## Disclaimer
 

docs/README.md

@@ -3,7 +3,6 @@
 The order of the files here only roughly represents the order of reading. A lot of topics are intertwined, so it is recommended to read everything first to have a complete picture and then refer to specific documents for more details.
 
 - [Glossary](./glossary.md)
-- [Overview](./overview.md)
 - Contracts of an individual chain
   - [ZK Chain basics](./settlement_contracts/zkchain_basics.md)
   - Data availability

l1-contracts/contracts/common/libraries/UnsafeBytes.sol

@@ -30,6 +30,13 @@ library UnsafeBytes {
         }
     }
 
+    function readUint128(bytes memory _bytes, uint256 _start) internal pure returns (uint128 result, uint256 offset) {
+        assembly {
+            offset := add(_start, 16)
+            result := mload(add(_bytes, offset))
+        }
+    }
+
     function readUint256(bytes memory _bytes, uint256 _start) internal pure returns (uint256 result, uint256 offset) {
         assembly {
             offset := add(_start, 32)