Add PubkeyError for ProgramError (#10748)

programs/bpf/c/src/error_handling/error_handling.c

@@ -35,6 +35,9 @@ extern uint64_t entrypoint(const uint8_t *input) {
     case(6):
       sol_log("return unknown builtin");
       return TO_BUILTIN(50);
+    case(9):
+      sol_log("return pubkey error");
+      return MAX_SEED_LENGTH_EXCEEDED;
     default:
       sol_log("Unrecognized command");
       return ERROR_INVALID_INSTRUCTION_DATA;

programs/bpf/rust/error_handling/src/lib.rs

@@ -10,7 +10,7 @@ use solana_sdk::{
     entrypoint::ProgramResult,
     info,
     program_error::{PrintProgramError, ProgramError},
-    pubkey::Pubkey,
+    pubkey::{Pubkey, PubkeyError},
 };
 use thiserror::Error;
 
@@ -73,6 +73,10 @@ fn process_instruction(
             assert_eq!(*data, *data2);
             Ok(())
         }
+        9 => {
+            info!("return pubkey error");
+            Err(PubkeyError::MaxSeedLengthExceeded.into())
+        }
         _ => {
             info!("Unsupported");
             Err(ProgramError::InvalidInstructionData)

programs/bpf/tests/programs.rs

@@ -301,6 +301,14 @@ mod bpf {
                 result.unwrap_err().unwrap(),
                 TransactionError::InstructionError(0, InstructionError::InvalidInstructionData)
             );
+
+            let instruction = Instruction::new(program_id, &9u8, account_metas.clone());
+            let result = bank_client.send_instruction(&mint_keypair, instruction);
+            assert_eq!(
+                result.unwrap_err().unwrap(),
+                TransactionError::InstructionError(0, InstructionError::MaxSeedLengthExceeded)
+            );
+
         }
     }