1 /*
2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@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 *
sprintaddr(void * addr)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
main(void)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