Feature - `switch_to_new_elf_parser` (#30498)

Adds feature gate "switch_to_new_elf_parser".

programs/bpf_loader/src/syscalls/mod.rs

@@ -40,7 +40,7 @@ use {
             enable_early_verification_of_account_modifications,
             error_on_syscall_bpf_function_hash_collisions, libsecp256k1_0_5_upgrade_enabled,
             limit_secp256k1_recovery_id, reject_callx_r10,
-            stop_sibling_instruction_search_at_parent,
+            stop_sibling_instruction_search_at_parent, switch_to_new_elf_parser,
         },
         hash::{Hasher, HASH_BYTES},
         instruction::{
@@ -181,7 +181,7 @@ pub fn create_loader<'a>(
         static_syscalls: false,
         enable_elf_vaddr: false,
         reject_rodata_stack_overlap: false,
-        new_elf_parser: false,
+        new_elf_parser: feature_set.is_active(&switch_to_new_elf_parser::id()),
         aligned_memory_mapping: true,
         // Warning, do not use `Config::default()` so that configuration here is explicit.
     };

sdk/src/feature_set.rs

@@ -622,6 +622,10 @@ pub mod add_set_tx_loaded_accounts_data_size_instruction {
     solana_sdk::declare_id!("G6vbf1UBok8MWb8m25ex86aoQHeKTzDKzuZADHkShqm6");
 }
 
+pub mod switch_to_new_elf_parser {
+    solana_sdk::declare_id!("Cdkc8PPTeTNUPoZEfCY5AyetUrEdkZtNPMgz58nqyaHD");
+}
+
 lazy_static! {
     /// Map of feature identifiers to user-visible description
     pub static ref FEATURE_NAMES: HashMap<Pubkey, &'static str> = [
@@ -772,6 +776,7 @@ lazy_static! {
         (delay_visibility_of_program_deployment::id(), "delay visibility of program upgrades #30085"),
         (apply_cost_tracker_during_replay::id(), "apply cost tracker to blocks during replay #29595"),
         (add_set_tx_loaded_accounts_data_size_instruction::id(), "add compute budget instruction for setting account data size per transaction #30366"),
+        (switch_to_new_elf_parser::id(), "switch to new ELF parser #30497"),
         /*************** ADD NEW FEATURES HERE ***************/
     ]
     .iter()