cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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WRC+poonceonces+Once.litmus (465B)

      1C WRC+poonceonces+Once
      2
      3(*
      4 * Result: Sometimes
      5 *
      6 * This litmus test is an extension of the message-passing pattern,
      7 * where the first write is moved to a separate process.  Note that this
      8 * test has no ordering at all.
      9 *)
     10
     11{}
     12
     13P0(int *x)
     14{
     15	WRITE_ONCE(*x, 1);
     16}
     17
     18P1(int *x, int *y)
     19{
     20	int r0;
     21
     22	r0 = READ_ONCE(*x);
     23	WRITE_ONCE(*y, 1);
     24}
     25
     26P2(int *x, int *y)
     27{
     28	int r0;
     29	int r1;
     30
     31	r0 = READ_ONCE(*y);
     32	r1 = READ_ONCE(*x);
     33}
     34
     35exists (1:r0=1 /\ 2:r0=1 /\ 2:r1=0)