liblaunch: ensure stack pointers remain aligned

2026-04-01 18:53:04 +01:00
parent 3bd5899ece
commit 28d986c628
1 changed files with 6 additions and 0 deletions
@@ -24,6 +24,9 @@ void *stack_writer_put_string(
 	w->w_local_sp -= (len + 1);
 	w->w_remote_sp -= (len + 1);

+	w->w_local_sp &= ~0x0F;
+	w->w_remote_sp &= ~0x0F;
+
 	char *local_ptr = (char *)w->w_local_sp;
 	virt_addr_t remote_ptr = w->w_remote_sp;

@@ -46,6 +49,9 @@ void *stack_writer_put(
 	w->w_local_sp -= len;
 	w->w_remote_sp -= len;

+	w->w_local_sp &= ~0x0F;
+	w->w_remote_sp &= ~0x0F;
+
 	void *local_ptr = (char *)w->w_local_sp;
 	virt_addr_t remote_ptr = w->w_remote_sp;