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"(1)); 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