| * Memory tagging, basic fail cases, synchronous signals. |
| * Copyright (c) 2021 Linaro Ltd |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| void pass(int sig, siginfo_t *info, void *uc) |
| assert(info->si_code == SEGV_MTESERR); |
| int main(int ac, char **av) |
| enable_mte(PR_MTE_TCF_SYNC); |
| p0 = alloc_mte_mem(sizeof(*p0)); |
| /* Create two differently tagged pointers. */ |
| asm("irg %0,%1,%2" : "=r"(p1) : "r"(p0), "r"(excl)); |
| asm("gmi %0,%1,%0" : "+r"(excl) : "r" (p1)); |
| asm("irg %0,%1,%2" : "=r"(p2) : "r"(p0), "r"(excl)); |
| /* Store the tag from the first pointer. */ |
| asm("stg %0, [%0]" : : "r"(p1)); |
| memset(&sa, 0, sizeof(sa)); |
| sa.sa_flags = SA_SIGINFO; |
| sigaction(SIGSEGV, &sa, NULL); |