Fixed SIGILL in stack_alignment test

Author: lhecker

src/context.rs

@@ -174,20 +174,18 @@ mod tests {
  #[test]
  fn stack_alignment() {
  extern "C" fn context_function(t: Transfer) -> ! {
- let i = [0u8; 512];
- assert_eq!(&i as *const _ as usize % 16, 0);
-
- t.context.resume(0);
+ let i: [u8; 512] = unsafe { mem::uninitialized() };
+ t.context.resume(&i as *const _ as usize % 16);
  unreachable!();
  }
 
  let stack = ProtectedFixedSizeStack::default();
  assert_eq!(stack.top() as usize % 16, 0);
  assert_eq!(stack.bottom() as usize % 16, 0);
 
- let t = Transfer::new(Context::new(&stack, context_function), 0);
-
- t.context.resume(0);
+ let mut t = Transfer::new(Context::new(&stack, context_function), 0);
+ t = t.context.resume(0);
+ assert_eq!(t.data, 0);
  }
 
  #[test]