1*36cd5fbdSRichard Henderson /*
2*36cd5fbdSRichard Henderson * Memory tagging, basic pass cases.
3*36cd5fbdSRichard Henderson *
4*36cd5fbdSRichard Henderson * Copyright (c) 2021 Linaro Ltd
5*36cd5fbdSRichard Henderson * SPDX-License-Identifier: GPL-2.0-or-later
6*36cd5fbdSRichard Henderson */
7*36cd5fbdSRichard Henderson
8*36cd5fbdSRichard Henderson #include "mte.h"
9*36cd5fbdSRichard Henderson
main(int ac,char ** av)10*36cd5fbdSRichard Henderson int main(int ac, char **av)
11*36cd5fbdSRichard Henderson {
12*36cd5fbdSRichard Henderson int *p0, *p1, *p2;
13*36cd5fbdSRichard Henderson long c;
14*36cd5fbdSRichard Henderson
15*36cd5fbdSRichard Henderson enable_mte(PR_MTE_TCF_NONE);
16*36cd5fbdSRichard Henderson p0 = alloc_mte_mem(sizeof(*p0));
17*36cd5fbdSRichard Henderson
18*36cd5fbdSRichard Henderson asm("irg %0,%1,%2" : "=r"(p1) : "r"(p0), "r"(1));
19*36cd5fbdSRichard Henderson assert(p1 != p0);
20*36cd5fbdSRichard Henderson asm("subp %0,%1,%2" : "=r"(c) : "r"(p0), "r"(p1));
21*36cd5fbdSRichard Henderson assert(c == 0);
22*36cd5fbdSRichard Henderson
23*36cd5fbdSRichard Henderson asm("stg %0, [%0]" : : "r"(p1));
24*36cd5fbdSRichard Henderson asm("ldg %0, [%1]" : "=r"(p2) : "r"(p0), "0"(p0));
25*36cd5fbdSRichard Henderson assert(p1 == p2);
26*36cd5fbdSRichard Henderson
27*36cd5fbdSRichard Henderson return 0;
28*36cd5fbdSRichard Henderson }
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