Port BPFLoader2 activation to FeatureSet and rework built-in program activation

core/src/builtins.rs

@@ -0,0 +1,44 @@
+use solana_runtime::{
+    bank::{Builtin, Builtins, Entrypoint},
+    feature_set,
+};
+use solana_sdk::{genesis_config::ClusterType, pubkey::Pubkey};
+
+/// Builtin programs that are always available
+fn genesis_builtins(cluster_type: ClusterType) -> Vec<Builtin> {
+    let builtins = if cluster_type != ClusterType::MainnetBeta {
+        vec![
+            solana_bpf_loader_deprecated_program!(),
+            solana_bpf_loader_program!(),
+        ]
+    } else {
+        // Remove this `else` block and the `cluster_type` argument to this function once
+        // `feature_set::bpf_loader2_program::id()` is active on Mainnet Beta
+        vec![solana_bpf_loader_deprecated_program!()]
+    };
+
+    builtins
+        .into_iter()
+        .map(|b| Builtin::new(&b.0, b.1, Entrypoint::Loader(b.2)))
+        .collect()
+}
+
+/// Builtin programs activated dynamically by feature
+fn feature_builtins() -> Vec<(Builtin, Pubkey)> {
+    let builtins = vec![(
+        solana_bpf_loader_program!(),
+        feature_set::bpf_loader2_program::id(),
+    )];
+
+    builtins
+        .into_iter()
+        .map(|(b, p)| (Builtin::new(&b.0, b.1, Entrypoint::Loader(b.2)), p))
+        .collect()
+}
+
+pub(crate) fn get(cluster_type: ClusterType) -> Builtins {
+    Builtins {
+        genesis_builtins: genesis_builtins(cluster_type),
+        feature_builtins: feature_builtins(),
+    }
+}

core/src/lib.rs

@@ -6,11 +6,15 @@
 //! command-line tools to spin up validators and a Rust library
 //!
 
+#[macro_use]
+extern crate solana_bpf_loader_program;
+
 pub mod accounts_background_service;
 pub mod accounts_hash_verifier;
 pub mod banking_stage;
 pub mod bigtable_upload_service;
 pub mod broadcast_stage;
+mod builtins;
 pub mod cache_block_time_service;
 pub mod cluster_info_vote_listener;
 pub mod commitment_service;

core/src/test_validator.rs

@@ -69,6 +69,7 @@ impl TestValidator {
             &Pubkey::new_rand(),
             42,
             bootstrap_validator_lamports,
+            solana_sdk::genesis_config::ClusterType::Development,
         );
         genesis_config.rent.lamports_per_byte_year = 1;
         genesis_config.rent.exemption_threshold = 1.0;

core/src/validator.rs

@@ -2,6 +2,7 @@
 
 use crate::{
     broadcast_stage::BroadcastStageType,
+    builtins,
     cache_block_time_service::{CacheBlockTimeSender, CacheBlockTimeService},
     cluster_info::{ClusterInfo, Node},
     cluster_info_vote_listener::VoteTracker,
@@ -791,6 +792,7 @@ fn new_banks_from_ledger(
         new_hard_forks: config.new_hard_forks.clone(),
         frozen_accounts: config.frozen_accounts.clone(),
         debug_keys: config.debug_keys.clone(),
+        additional_builtins: Some(builtins::get(genesis_config.cluster_type)),
         ..blockstore_processor::ProcessOptions::default()
     };