/usr/include/atomic_ops/sysdeps/gcc/sh.h is in libatomic-ops-dev 7.6.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | /*
* Copyright (c) 2009 by Takashi YOSHII. All rights reserved.
*
*
* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
*
* Permission is hereby granted to use or copy this program
* for any purpose, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*/
#include "../all_atomic_load_store.h"
#include "../ordered.h"
/* sh has tas.b(byte) only */
#include "../test_and_set_t_is_char.h"
AO_INLINE AO_TS_VAL_t
AO_test_and_set_full(volatile AO_TS_t *addr)
{
int oldval;
__asm__ __volatile__(
"tas.b @%1; movt %0"
: "=r" (oldval)
: "r" (addr)
: "t", "memory");
return oldval? AO_TS_CLEAR : AO_TS_SET;
}
#define AO_HAVE_test_and_set_full
/* TODO: Very incomplete. */
|