From c41462e417026f79ee22903b6b7bebb8bac30c65 Mon Sep 17 00:00:00 2001
From: Richard Patel <me@terorie.dev>
Date: Sat, 9 Jul 2022 01:23:27 +0200
Subject: [PATCH] Fix sol_get_processed_sibling_instruction on 32-bit hosts

---
 programs/bpf_loader/src/syscalls/mod.rs | 9 +++++----
 sdk/program/src/instruction.rs          | 8 ++++----
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/programs/bpf_loader/src/syscalls/mod.rs b/programs/bpf_loader/src/syscalls/mod.rs
index 2c33dd96d1725c..e3bde1a2c0875e 100644
--- a/programs/bpf_loader/src/syscalls/mod.rs
+++ b/programs/bpf_loader/src/syscalls/mod.rs
@@ -1750,8 +1750,9 @@ declare_syscall!(
                 result
             );
 
-            if *data_len == instruction_context.get_instruction_data().len()
-                && *accounts_len == instruction_context.get_number_of_instruction_accounts()
+            if *data_len == (instruction_context.get_instruction_data().len() as u64)
+                && *accounts_len
+                    == (instruction_context.get_number_of_instruction_accounts() as u64)
             {
                 let program_id = question_mark!(
                     translate_type_mut::<Pubkey>(
@@ -1809,8 +1810,8 @@ declare_syscall!(
                 );
                 accounts.clone_from_slice(account_metas.as_slice());
             }
-            *data_len = instruction_context.get_instruction_data().len();
-            *accounts_len = instruction_context.get_number_of_instruction_accounts();
+            *data_len = instruction_context.get_instruction_data().len() as u64;
+            *accounts_len = instruction_context.get_number_of_instruction_accounts() as u64;
             *result = Ok(true as u64);
             return;
         }
diff --git a/sdk/program/src/instruction.rs b/sdk/program/src/instruction.rs
index 7b2931847b463c..3a6ff0e0bbb7a1 100644
--- a/sdk/program/src/instruction.rs
+++ b/sdk/program/src/instruction.rs
@@ -664,9 +664,9 @@ impl CompiledInstruction {
 #[derive(Default, Debug, Clone, Copy)]
 pub struct ProcessedSiblingInstruction {
     /// Length of the instruction data
-    pub data_len: usize,
+    pub data_len: u64,
     /// Number of AccountMeta structures
-    pub accounts_len: usize,
+    pub accounts_len: u64,
 }
 
 /// Returns a sibling instruction from the processed sibling instruction list.
@@ -698,8 +698,8 @@ pub fn get_processed_sibling_instruction(index: usize) -> Option<Instruction> {
         } {
             let mut data = Vec::new();
             let mut accounts = Vec::new();
-            data.resize_with(meta.data_len, u8::default);
-            accounts.resize_with(meta.accounts_len, AccountMeta::default);
+            data.resize_with(meta.data_len as usize, u8::default);
+            accounts.resize_with(meta.accounts_len as usize, AccountMeta::default);
 
             let _ = unsafe {
                 crate::syscalls::sol_get_processed_sibling_instruction(