1 /* 2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "tests.h" 29 #include <asm/unistd.h> 30 31 #if defined __NR_get_robust_list && defined __NR_set_robust_list 32 33 # include <stdio.h> 34 # include <unistd.h> 35 36 static const char * 37 sprintaddr(void *addr) 38 { 39 static char buf[sizeof(addr) * 2 + sizeof("0x")]; 40 41 if (!addr) 42 return "NULL"; 43 else 44 snprintf(buf, sizeof(buf), "%p", addr); 45 46 return buf; 47 } 48 49 int 50 main(void) 51 { 52 const pid_t pid = getpid(); 53 const long long_pid = (unsigned long) (0xdeadbeef00000000LL | pid); 54 void **p_head = tail_alloc(sizeof(void *)); 55 size_t *p_len = tail_alloc(sizeof(size_t)); 56 57 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len)) 58 perror_msg_and_skip("get_robust_list"); 59 printf("get_robust_list(%d, [%s], [%lu]) = 0\n", 60 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len); 61 62 void *head = tail_alloc(*p_len); 63 if (syscall(__NR_set_robust_list, head, *p_len)) 64 perror_msg_and_skip("set_robust_list"); 65 printf("set_robust_list(%p, %lu) = 0\n", 66 head, (unsigned long) *p_len); 67 68 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len)) 69 perror_msg_and_skip("get_robust_list"); 70 printf("get_robust_list(%d, [%s], [%lu]) = 0\n", 71 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len); 72 73 puts("+++ exited with 0 +++"); 74 return 0; 75 } 76 77 #else 78 79 SKIP_MAIN_UNDEFINED("__NR_get_robust_list && __NR_set_robust_list") 80 81 #endif 82
