Expose executable and rent_epoch in AccountInfo (#8619)

programs/bpf_loader/src/lib.rs

@@ -97,6 +97,9 @@ pub fn serialize_parameters(
                 .unwrap();
             v.write_all(&keyed_account.try_account_ref()?.data).unwrap();
             v.write_all(keyed_account.owner()?.as_ref()).unwrap();
+            v.write_u8(keyed_account.executable()? as u8).unwrap();
+            v.write_u64::<LittleEndian>(keyed_account.rent_epoch()? as u64)
+                .unwrap();
         }
     }
     v.write_u64::<LittleEndian>(data.len() as u64).unwrap();
@@ -129,7 +132,9 @@ pub fn deserialize_parameters(
                 .data
                 .clone_from_slice(&buffer[start..end]);
             start += keyed_account.data_len()? // data
-                + mem::size_of::<Pubkey>(); // owner
+                + mem::size_of::<Pubkey>() // owner
+                + mem::size_of::<u8>() // executable
+                + mem::size_of::<u64>(); // rent_epoch
         }
     }
     Ok(())

sdk/bpf/c/inc/solana_sdk.h

@@ -170,12 +170,14 @@ SOL_FN_PREFIX bool SolPubkey_same(const SolPubkey *one, const SolPubkey *two) {
  */
 typedef struct {
   SolPubkey *key;      /** Public key of the account */
-  bool is_signer;      /** Transaction was signed by this account's key? */
-  bool is_writable;    /** Is the account writable? */
   uint64_t *lamports;  /** Number of lamports owned by this account */
   uint64_t data_len;   /** Length of data in bytes */
   uint8_t *data;       /** On-chain data within this account */
   SolPubkey *owner;    /** Program that owns this account */
+  uint64_t rent_epoch; /** The epoch at which this account will next owe rent */
+  bool is_signer;      /** Transaction was signed by this account's key? */
+  bool is_writable;    /** Is the account writable? */
+  bool executable;     /** This account's data contains a loaded program (and is now read-only) */
 } SolKeyedAccount;
 
 /**
@@ -315,13 +317,23 @@ SOL_FN_PREFIX bool sol_deserialize(
       // owner
       params->ka[i].owner = (SolPubkey *) input;
       input += sizeof(SolPubkey);
+
+      // executable?
+      params->ka[i].executable = *(uint8_t *) input;
+      input += sizeof(uint8_t);
+
+      // rent epoch
+      params->ka[i].rent_epoch = *(uint64_t *) input;
+      input += sizeof(uint64_t);
     } else {
       params->ka[i].is_signer = params->ka[dup_info].is_signer;
       params->ka[i].key = params->ka[dup_info].key;
       params->ka[i].lamports = params->ka[dup_info].lamports;
       params->ka[i].data_len = params->ka[dup_info].data_len;
       params->ka[i].data = params->ka[dup_info].data;
       params->ka[i].owner = params->ka[dup_info].owner;
+      params->ka[i].executable = params->ka[dup_info].executable;
+      params->ka[i].rent_epoch = params->ka[dup_info].rent_epoch;
     }
   }
 
@@ -387,6 +399,10 @@ SOL_FN_PREFIX void sol_log_params(const SolParameters *params) {
     sol_log_array(params->ka[i].data, params->ka[i].data_len);
     sol_log("  - Owner");
     sol_log_key(params->ka[i].owner);
+    sol_log("  - Executable");
+    sol_log_64(0, 0, 0, 0, params->ka[i].executable);
+    sol_log("  - Rent Epoch");
+    sol_log_64(0, 0, 0, 0, params->ka[i].rent_epoch);
   }
   sol_log("- Instruction data\0");
   sol_log_array(params->data, params->data_len);

sdk/src/account.rs

@@ -1,8 +1,4 @@
-use crate::{
-    hash::Hash,
-    instruction::InstructionError,
-    {clock::Epoch, pubkey::Pubkey},
-};
+use crate::{clock::Epoch, hash::Hash, instruction::InstructionError, pubkey::Pubkey};
 use std::{
     cell::{Ref, RefCell, RefMut},
     cmp, fmt,
@@ -183,6 +179,10 @@ impl<'a> KeyedAccount<'a> {
         Ok(self.try_borrow()?.executable)
     }
 
+    pub fn rent_epoch(&self) -> Result<Epoch, InstructionError> {
+        Ok(self.try_borrow()?.rent_epoch)
+    }
+
     pub fn try_account_ref(&'a self) -> Result<Ref<Account>, InstructionError> {
         self.try_borrow()
     }

sdk/src/account_info.rs

@@ -1,4 +1,4 @@
-use crate::{account::Account, program_error::ProgramError, pubkey::Pubkey};
+use crate::{account::Account, clock::Epoch, program_error::ProgramError, pubkey::Pubkey};
 use std::{
     cell::{Ref, RefCell, RefMut},
     cmp, fmt,
@@ -20,25 +20,34 @@ pub struct AccountInfo<'a> {
     pub data: Rc<RefCell<&'a mut [u8]>>,
     /// Program that owns this account
     pub owner: &'a Pubkey,
+    /// This account's data contains a loaded program (and is now read-only)
+    pub executable: bool,
+    /// The epoch at which this account will next owe rent
+    pub rent_epoch: Epoch,
 }
 
 impl<'a> fmt::Debug for AccountInfo<'a> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         let data_len = cmp::min(64, self.data_len());
         let data_str = if data_len > 0 {
             format!(
-                " data: {}",
+                " data: {} ...",
                 hex::encode(self.data.borrow()[..data_len].to_vec())
             )
         } else {
             "".to_string()
         };
         write!(
             f,
-            "AccountInfo {{ lamports: {} data.len: {} owner: {} {} }}",
+            "AccountInfo {{ key: {} owner: {} is_signer: {} is_writable: {} executable: {} rent_epoch: {} lamports: {} data.len: {} {} }}",
+            self.key,
+            self.owner,
+            self.is_signer,
+            self.is_writable,
+            self.executable,
+            self.rent_epoch,
             self.lamports(),
             self.data_len(),
-            self.owner,
             data_str,
         )
     }
@@ -57,10 +66,6 @@ impl<'a> AccountInfo<'a> {
         self.key
     }
 
-    pub fn is_writable(&self) -> bool {
-        self.is_writable
-    }
-
     pub fn lamports(&self) -> u64 {
         **self.lamports.borrow()
     }
@@ -116,6 +121,8 @@ impl<'a> AccountInfo<'a> {
         lamports: &'a mut u64,
         data: &'a mut [u8],
         owner: &'a Pubkey,
+        executable: bool,
+        rent_epoch: Epoch,
     ) -> Self {
         Self {
             key,
@@ -124,6 +131,8 @@ impl<'a> AccountInfo<'a> {
             lamports: Rc::new(RefCell::new(lamports)),
             data: Rc::new(RefCell::new(data)),
             owner,
+            executable,
+            rent_epoch,
         }
     }
 
@@ -148,6 +157,8 @@ impl<'a> From<(&'a Pubkey, &'a mut Account)> for AccountInfo<'a> {
             &mut account.lamports,
             &mut account.data,
             &account.owner,
+            account.executable,
+            account.rent_epoch,
         )
     }
 }
@@ -161,6 +172,8 @@ impl<'a> From<(&'a Pubkey, bool, &'a mut Account)> for AccountInfo<'a> {
             &mut account.lamports,
             &mut account.data,
             &account.owner,
+            account.executable,
+            account.rent_epoch,
         )
     }
 }
@@ -174,6 +187,8 @@ impl<'a> From<&'a mut (Pubkey, Account)> for AccountInfo<'a> {
             &mut account.lamports,
             &mut account.data,
             &account.owner,
+            account.executable,
+            account.rent_epoch,
         )
     }
 }
@@ -195,6 +210,8 @@ pub fn create_is_signer_account_infos<'a>(
                 &mut account.lamports,
                 &mut account.data,
                 &account.owner,
+                account.executable,
+                account.rent_epoch,
             )
         })
         .collect()

sdk/src/entrypoint.rs

@@ -67,18 +67,12 @@ pub unsafe fn deserialize<'a>(input: *mut u8) -> (&'a Pubkey, Vec<AccountInfo<'a
         let dup_info = *(input.add(offset) as *const u8);
         offset += size_of::<u8>();
         if dup_info == std::u8::MAX {
-            let is_signer = {
-                #[allow(clippy::cast_ptr_alignment)]
-                let is_signer = *(input.add(offset) as *const u8);
-                is_signer != 0
-            };
+            #[allow(clippy::cast_ptr_alignment)]
+            let is_signer = *(input.add(offset) as *const u8) != 0;
             offset += size_of::<u8>();
 
-            let is_writable = {
-                #[allow(clippy::cast_ptr_alignment)]
-                let is_writable = *(input.add(offset) as *const u8);
-                is_writable != 0
-            };
+            #[allow(clippy::cast_ptr_alignment)]
+            let is_writable = *(input.add(offset) as *const u8) != 0;
             offset += size_of::<u8>();
 
             let key: &Pubkey = &*(input.add(offset) as *const Pubkey);
@@ -100,13 +94,23 @@ pub unsafe fn deserialize<'a>(input: *mut u8) -> (&'a Pubkey, Vec<AccountInfo<'a
             let owner: &Pubkey = &*(input.add(offset) as *const Pubkey);
             offset += size_of::<Pubkey>();
 
+            #[allow(clippy::cast_ptr_alignment)]
+            let executable = *(input.add(offset) as *const u8) != 0;
+            offset += size_of::<u8>();
+
+            #[allow(clippy::cast_ptr_alignment)]
+            let rent_epoch = *(input.add(offset) as *const u64);
+            offset += size_of::<u64>();
+
             accounts.push(AccountInfo {
                 is_signer,
                 is_writable,
                 key,
                 lamports,
                 data,
                 owner,
+                executable,
+                rent_epoch,
             });
         } else {
             // Duplicate account, clone the original