gh-158539: Keep layout assertions with debug-offset validation

Author: pablogsal

Modules/_remote_debugging/debug_offsets_validation.h

@@ -48,6 +48,15 @@ static_assert(
         PY_REMOTE_ASYNC_DEBUG_OFFSETS_TOTAL_SIZE,
     "Update _remote_debugging validation for _Py_AsyncioModuleDebugOffsets");
 
+/* Derive unexported offsets from adjacent fields to keep the debug-offset
+ * table compatible across patch releases. */
+static_assert(offsetof(PyThreadState, exc_info) ==
+              offsetof(PyThreadState, current_exception) + sizeof(uintptr_t),
+              "exc_info must immediately follow current_exception");
+static_assert(offsetof(_PyErr_StackItem, previous_item) ==
+              offsetof(_PyErr_StackItem, exc_value) + sizeof(uintptr_t),
+              "previous_item must immediately follow exc_value");
+
 /*
  * This logic lives in a private header because it is shared by module.c and
  * asyncio.c. Keep the helpers static inline so they stay local to those users

Modules/_remote_debugging/threads.c

@@ -20,15 +20,6 @@
 /* Bound traversal of corrupted remote exception chains. */
 #define MAX_EXCEPTION_CHAIN_DEPTH (2 << 15)
 
-/* Derive unexported offsets from adjacent fields to keep the debug-offset
- * table compatible across patch releases. */
-static_assert(offsetof(PyThreadState, exc_info) ==
-              offsetof(PyThreadState, current_exception) + sizeof(uintptr_t),
-              "exc_info must immediately follow current_exception");
-static_assert(offsetof(_PyErr_StackItem, previous_item) ==
-              offsetof(_PyErr_StackItem, exc_value) + sizeof(uintptr_t),
-              "previous_item must immediately follow exc_value");
-
 /* ============================================================================
  * THREAD ITERATION FUNCTIONS
  * ============================================================================ */