1 /*
2 * Memory tagging, basic pass cases.
3 *
4 * Copyright (c) 2021 Linaro Ltd
5 * SPDX-License-Identifier: GPL-2.0-or-later
6 */
7
8 #include "mte.h"
9
main(int ac,char ** av)10 int main(int ac, char **av)
11 {
12 int *p0, *p1, *p2;
13 long c;
14
15 enable_mte(PR_MTE_TCF_NONE);
16 p0 = alloc_mte_mem(sizeof(*p0));
17
18 asm("irg %0,%1,%2" : "=r"(p1) : "r"(p0), "r"(1l));
19 assert(p1 != p0);
20 asm("subp %0,%1,%2" : "=r"(c) : "r"(p0), "r"(p1));
21 assert(c == 0);
22
23 asm("stg %0, [%0]" : : "r"(p1));
24 asm("ldg %0, [%1]" : "=r"(p2) : "r"(p0), "0"(p0));
25 assert(p1 == p2);
26
27 return 0;
28 }
29