New upstream version 1.48.0~beta.8+dfsg1

[rustc.git] / library / std / src / sys / sgx / rwlock.rs

diff --git a/library/std/src/sys/sgx/rwlock.rs b/library/std/src/sys/sgx/rwlock.rs
index 722b4f5e0ba387fcc98b584025d8ee59aa6629bf..3bf2a7d8fb46c3df0f81230768f1289f01b8762d 100644 (file)
--- a/library/std/src/sys/sgx/rwlock.rs
+++ b/library/std/src/sys/sgx/rwlock.rs
@@ -1,3 +1,6 @@
+#[cfg(test)]
+mod tests;
+
 use crate::num::NonZeroUsize;
 
 use super::waitqueue::{
@@ -198,50 +201,3 @@ pub unsafe extern "C" fn __rust_rwlock_unlock(p: *mut RWLock) -> i32 {
     (*p).unlock();
     return 0;
 }
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-    use crate::mem::{self, MaybeUninit};
-    use core::array::FixedSizeArray;
-
-    // Verify that the bytes of initialized RWLock are the same as in
-    // libunwind. If they change, `src/UnwindRustSgx.h` in libunwind needs to
-    // be changed too.
-    #[test]
-    fn test_c_rwlock_initializer() {
-        #[rustfmt::skip]
-        const RWLOCK_INIT: &[u8] = &[
-            /* 0x00 */ 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x10 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x20 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x30 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x40 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x50 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x60 */ 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x70 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-            /* 0x80 */ 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
-        ];
-
-        #[inline(never)]
-        fn zero_stack() {
-            test::black_box(MaybeUninit::<[RWLock; 16]>::zeroed());
-        }
-
-        #[inline(never)]
-        unsafe fn rwlock_new(init: &mut MaybeUninit<RWLock>) {
-            init.write(RWLock::new());
-        }
-
-        unsafe {
-            // try hard to make sure that the padding/unused bytes in RWLock
-            // get initialized as 0. If the assertion below fails, that might
-            // just be an issue with the test code and not with the value of
-            // RWLOCK_INIT.
-            zero_stack();
-            let mut init = MaybeUninit::<RWLock>::zeroed();
-            rwlock_new(&mut init);
-            assert_eq!(mem::transmute::<_, [u8; 144]>(init.assume_init()).as_slice(), RWLOCK_INIT)
-        };
-    }
-}