46     unsigned char *a;  in main()  local
68     a = mmap(0, page_sz, PROT_READ | PROT_WRITE,  in main()
70     if (a == MAP_FAILED) {  in main()
75     printf("a[] address is %p\n", a);  in main()
81     if (mprotect(a, page_sz, PROT_READ | PROT_WRITE | PROT_MTE)) {  in main()
87     a[0] = 1;  in main()
88     a[1] = 2;  in main()
90     printf("a[0] = %hhu a[1] = %hhu\n", a[0], a[1]);  in main()
93     a = (unsigned char *)insert_random_tag(a);  in main()
94     set_tag(a);  in main()
96     printf("%p\n", a);  in main()