clean feature: prevent_calling_precompiles_as_programs (#27100)

* clean feature: prevent_calling_precompiles_as_programs

* fix tests

* fix test

* remove comment

* fix test

* feedback

programs/bpf_loader/src/syscalls/cpi.rs

@@ -834,20 +834,16 @@ fn check_authorized_program(
     instruction_data: &[u8],
     invoke_context: &InvokeContext,
 ) -> Result<(), EbpfError<BpfError>> {
-    #[allow(clippy::blocks_in_if_conditions)]
     if native_loader::check_id(program_id)
         || bpf_loader::check_id(program_id)
         || bpf_loader_deprecated::check_id(program_id)
         || (bpf_loader_upgradeable::check_id(program_id)
             && !(bpf_loader_upgradeable::is_upgrade_instruction(instruction_data)
                 || bpf_loader_upgradeable::is_set_authority_instruction(instruction_data)
                 || bpf_loader_upgradeable::is_close_instruction(instruction_data)))
-        || (invoke_context
-            .feature_set
-            .is_active(&prevent_calling_precompiles_as_programs::id())
-            && is_precompile(program_id, |feature_id: &Pubkey| {
-                invoke_context.feature_set.is_active(feature_id)
-            }))
+        || is_precompile(program_id, |feature_id: &Pubkey| {
+            invoke_context.feature_set.is_active(feature_id)
+        })
     {
         return Err(SyscallError::ProgramNotSupported(*program_id).into());
     }

programs/bpf_loader/src/syscalls/mod.rs

@@ -36,8 +36,7 @@ use {
             self, blake3_syscall_enabled, check_physical_overlapping, check_slice_translation_size,
             curve25519_syscall_enabled, disable_cpi_setting_executable_and_rent_epoch,
             disable_fees_sysvar, enable_early_verification_of_account_modifications,
-            libsecp256k1_0_5_upgrade_enabled, limit_secp256k1_recovery_id,
-            prevent_calling_precompiles_as_programs, syscall_saturated_math,
+            libsecp256k1_0_5_upgrade_enabled, limit_secp256k1_recovery_id, syscall_saturated_math,
         },
         hash::{Hasher, HASH_BYTES},
         instruction::{

programs/ed25519-tests/tests/process_transaction.rs

@@ -4,7 +4,6 @@ use {
     solana_program_test::*,
     solana_sdk::{
         ed25519_instruction::new_ed25519_instruction,
-        feature_set,
         signature::Signer,
         transaction::{Transaction, TransactionError},
     },
@@ -60,27 +59,3 @@ async fn test_failure() {
         ))
     );
 }
-
-#[tokio::test]
-async fn test_success_call_builtin_program() {
-    let mut program_test = ProgramTest::default();
-    program_test.deactivate_feature(feature_set::prevent_calling_precompiles_as_programs::id());
-    let mut context = program_test.start_with_context().await;
-
-    let client = &mut context.banks_client;
-    let payer = &context.payer;
-    let recent_blockhash = context.last_blockhash;
-
-    let privkey = ed25519_dalek::Keypair::generate(&mut thread_rng());
-    let message_arr = b"hello";
-    let instruction = new_ed25519_instruction(&privkey, message_arr);
-
-    let transaction = Transaction::new_signed_with_payer(
-        &[instruction],
-        Some(&payer.pubkey()),
-        &[payer],
-        recent_blockhash,
-    );
-
-    assert_matches!(client.process_transaction(transaction).await, Ok(()));
-}

runtime/src/bank.rs

@@ -14571,25 +14571,25 @@ pub(crate) mod tests {
             if bank.slot == 0 {
                 assert_eq!(
                     bank.hash().to_string(),
-                    "9tLrxkBoNE7zEUZ2g72ZwE4fTfhUQnhC8A4Xt4EmYhP1"
+                    "5gY6TCgB9NymbbxgFgAjvYLpXjyXiVyyruS1aEwbWKLK"
                 );
             }
             if bank.slot == 32 {
                 assert_eq!(
                     bank.hash().to_string(),
-                    "AxphC8xDj9gmFosor5gyiovNvPVMydJCFRUTxn2wFiQf"
+                    "6uJ5C4QDXWCN39EjJ5Frcz73nnS2jMJ55KgkQff12Fqp"
                 );
             }
             if bank.slot == 64 {
                 assert_eq!(
                     bank.hash().to_string(),
-                    "4vZCSbBuL8xjE43rCy9Cm3dCh1BMj45heMiMb6n6qgzA"
+                    "4u8bxZRLYdQBkWRBwmpcwcQVMCJoEpzY7hCuAzxr3kCe"
                 );
             }
             if bank.slot == 128 {
                 assert_eq!(
                     bank.hash().to_string(),
-                    "46LUpeBdJuisnfwgYisvh4x7jnxzBaLfHF614GtcTs59"
+                    "4c5F8UbcDD8FM7qXcfv6BPPo6nHNYJQmN5gHiCMTdEzX"
                 );
                 break;
             }
@@ -14817,7 +14817,7 @@ pub(crate) mod tests {
         // No more slots should be shrunk
         assert_eq!(bank2.shrink_candidate_slots(), 0);
         // alive_counts represents the count of alive accounts in the three slots 0,1,2
-        assert_eq!(alive_counts, vec![9, 1, 7]);
+        assert_eq!(alive_counts, vec![11, 1, 7]);
     }
 
     #[test]
@@ -14863,7 +14863,7 @@ pub(crate) mod tests {
             .map(|_| bank.process_stale_slot_with_budget(0, force_to_return_alive_account))
             .sum();
         // consumed_budgets represents the count of alive accounts in the three slots 0,1,2
-        assert_eq!(consumed_budgets, 10);
+        assert_eq!(consumed_budgets, 12);
     }
 
     #[test]

runtime/src/builtins.rs

@@ -2,10 +2,8 @@
 use solana_frozen_abi::abi_example::AbiExample;
 use {
     crate::system_instruction_processor,
-    solana_program_runtime::invoke_context::{InvokeContext, ProcessInstructionWithContext},
-    solana_sdk::{
-        feature_set, instruction::InstructionError, pubkey::Pubkey, stake, system_program,
-    },
+    solana_program_runtime::invoke_context::ProcessInstructionWithContext,
+    solana_sdk::{feature_set, pubkey::Pubkey, stake, system_program},
     std::fmt,
 };
 
@@ -141,14 +139,6 @@ fn genesis_builtins() -> Vec<Builtin> {
     ]
 }
 
-/// place holder for precompile programs, remove when the precompile program is deactivated via feature activation
-fn dummy_process_instruction(
-    _first_instruction_account: usize,
-    _invoke_context: &mut InvokeContext,
-) -> Result<(), InstructionError> {
-    Ok(())
-}
-
 /// Dynamic feature transitions for builtin programs
 fn builtin_feature_transitions() -> Vec<BuiltinFeatureTransition> {
     vec![
@@ -160,24 +150,6 @@ fn builtin_feature_transitions() -> Vec<BuiltinFeatureTransition> {
             ),
             feature_id: feature_set::add_compute_budget_program::id(),
         },
-        BuiltinFeatureTransition::RemoveOrRetain {
-            previously_added_builtin: Builtin::new(
-                "secp256k1_program",
-                solana_sdk::secp256k1_program::id(),
-                dummy_process_instruction,
-            ),
-            addition_feature_id: feature_set::secp256k1_program_enabled::id(),
-            removal_feature_id: feature_set::prevent_calling_precompiles_as_programs::id(),
-        },
-        BuiltinFeatureTransition::RemoveOrRetain {
-            previously_added_builtin: Builtin::new(
-                "ed25519_program",
-                solana_sdk::ed25519_program::id(),
-                dummy_process_instruction,
-            ),
-            addition_feature_id: feature_set::ed25519_program_enabled::id(),
-            removal_feature_id: feature_set::prevent_calling_precompiles_as_programs::id(),
-        },
         BuiltinFeatureTransition::Add {
             builtin: Builtin::new(
                 "address_lookup_table_program",

runtime/src/genesis_utils.rs

@@ -27,6 +27,7 @@ pub fn bootstrap_validator_stake_lamports() -> u64 {
 // Number of lamports automatically used for genesis accounts
 pub const fn genesis_sysvar_and_builtin_program_lamports() -> u64 {
     const NUM_BUILTIN_PROGRAMS: u64 = 4;
+    const NUM_PRECOMPILES: u64 = 2;
     const FEES_SYSVAR_MIN_BALANCE: u64 = 946_560;
     const STAKE_HISTORY_MIN_BALANCE: u64 = 114_979_200;
     const CLOCK_SYSVAR_MIN_BALANCE: u64 = 1_169_280;
@@ -41,6 +42,7 @@ pub const fn genesis_sysvar_and_builtin_program_lamports() -> u64 {
         + EPOCH_SCHEDULE_SYSVAR_MIN_BALANCE
         + RECENT_BLOCKHASHES_SYSVAR_MIN_BALANCE
         + NUM_BUILTIN_PROGRAMS
+        + NUM_PRECOMPILES
 }
 
 pub struct ValidatorVoteKeypairs {

runtime/src/message_processor.rs

@@ -10,7 +10,7 @@ use {
     },
     solana_sdk::{
         account::WritableAccount,
-        feature_set::{prevent_calling_precompiles_as_programs, FeatureSet},
+        feature_set::FeatureSet,
         hash::Hash,
         message::SanitizedMessage,
         precompiles::is_precompile,
@@ -86,10 +86,8 @@ impl MessageProcessor {
             .zip(program_indices.iter())
             .enumerate()
         {
-            let is_precompile = invoke_context
-                .feature_set
-                .is_active(&prevent_calling_precompiles_as_programs::id())
-                && is_precompile(program_id, |id| invoke_context.feature_set.is_active(id));
+            let is_precompile =
+                is_precompile(program_id, |id| invoke_context.feature_set.is_active(id));
 
             // Fixup the special instructions key if present
             // before the account pre-values are taken care of

sdk/src/feature_set.rs

@@ -201,8 +201,6 @@ pub mod do_support_realloc {
     solana_sdk::declare_id!("75m6ysz33AfLA5DDEzWM1obBrnPQRSsdVQ2nRmc8Vuu1");
 }
 
-// Note: when this feature is cleaned up, also remove the secp256k1 program from
-// the list of builtins and remove its files from /programs
 pub mod prevent_calling_precompiles_as_programs {
     solana_sdk::declare_id!("4ApgRX3ud6p7LNMJmsuaAcZY5HWctGPr5obAsjB3A54d");
 }

sdk/src/precompiles.rs

@@ -4,9 +4,7 @@
 
 use {
     crate::{
-        decode_error::DecodeError,
-        feature_set::{prevent_calling_precompiles_as_programs, FeatureSet},
-        instruction::CompiledInstruction,
+        decode_error::DecodeError, feature_set::FeatureSet, instruction::CompiledInstruction,
         pubkey::Pubkey,
     },
     lazy_static::lazy_static,
@@ -81,12 +79,12 @@ lazy_static! {
     static ref PRECOMPILES: Vec<Precompile> = vec![
         Precompile::new(
             crate::secp256k1_program::id(),
-            Some(prevent_calling_precompiles_as_programs::id()),
+            None, // always enabled
             crate::secp256k1_instruction::verify,
         ),
         Precompile::new(
             crate::ed25519_program::id(),
-            Some(prevent_calling_precompiles_as_programs::id()),
+            None, // always enabled
             crate::ed25519_instruction::verify,
         ),
     ];