Skip to content

set code size for precompile #45

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
open-junius merged 1 commit into from
Jan 29, 2026
Merged

set code size for precompile #45

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 18 additions & 3 deletions frame/evm/src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1052,6 +1052,24 @@ impl<T: Config> Pallet<T> {
/// Get the account metadata (hash and size) from storage if it exists,
/// or compute it from code and store it if it doesn't exist.
pub fn account_code_metadata(address: H160) -> CodeMetadata {
const EMPTY_CODE_HASH: [u8; 32] =
hex_literal::hex!("c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470");

let is_precompile = match T::PrecompilesValue::get().is_precompile(address, 0) {
IsPrecompileResult::Answer { is_precompile, .. } => is_precompile,
IsPrecompileResult::OutOfGas => false,
};

// If the address is a precompile, we return size 1 and empty hash.
// Then the contract call bypass the code size check for precompile calls.
// It will make the call like IPrecompile.call successful.
if is_precompile {
return CodeMetadata {
size: 1,
hash: EMPTY_CODE_HASH.into(),
};
}

if let Some(meta) = <AccountCodesMetadata<T>>::get(address) {
return meta;
}
Expand All @@ -1061,9 +1079,6 @@ impl<T: Config> Pallet<T> {
// If code is empty we return precomputed hash for empty code.
// We don't store it as this address could get code deployed in the future.
if code.is_empty() {
const EMPTY_CODE_HASH: [u8; 32] = hex_literal::hex!(
"c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470"
);
return CodeMetadata {
size: 0,
hash: EMPTY_CODE_HASH.into(),
Expand Down
Loading