Precompile functions usage report

[natanasow]

Problem

We should investigate how many times precompile functions are used in the current mainnet contracts, and how many transactions have interacted with the current contracts.

Solution

Disassemble contracts bytecode to find out calls to the 0x167, fetch the contract results for these contracts, and get the calls generated in the fetched transactions.

First part:

• fetch all contracts on mainnet
• disassemble their bytecode, look up for call, staticcall, delegatecall against 0x167 and list how many times each precompile function is used

Second part:

• fetch all transactions that have interacted with these contracts
• get their calls via MAPI /contracts/results/<tx_hash>/actions
• humanize the data and add it to the report

Alternatives

No response

[natanasow]

Here is the PoC branch https://github.com/hashgraph/hedera-smart-contracts/tree/precompile-functions-usage-report/tools/analysis/precompile-contract-functions-analyzer

[Nana-EC]

@natanasow this was a great effort. What's the next steps. I would suggest

1. Paste the README result into this ticket for reference even if that branch gets deleted
2. Open a PR for any changes to existing tools you had to make
3. Open tickets capturing any features not supported that you had to hack together so that in future we don't have to hack anything together and we can just rerun checked in steps