| 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 | |
| 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 | } |