1 /*
2 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2015-2017 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "tests.h"
30 #include <asm/unistd.h>
31
32 #if defined __NR_get_robust_list && defined __NR_set_robust_list
33
34 # include <stdio.h>
35 # include <unistd.h>
36
37 static const char *
sprintaddr(void * addr)38 sprintaddr(void *addr)
39 {
40 static char buf[sizeof(addr) * 2 + sizeof("0x")];
41
42 if (!addr)
43 return "NULL";
44 else
45 snprintf(buf, sizeof(buf), "%p", addr);
46
47 return buf;
48 }
49
50 int
main(void)51 main(void)
52 {
53 const pid_t pid = getpid();
54 const long long_pid = (unsigned long) (0xdeadbeef00000000LL | pid);
55 TAIL_ALLOC_OBJECT_CONST_PTR(void *, p_head);
56 TAIL_ALLOC_OBJECT_CONST_PTR(size_t, p_len);
57
58 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
59 perror_msg_and_skip("get_robust_list");
60 printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
61 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
62
63 void *head = tail_alloc(*p_len);
64 if (syscall(__NR_set_robust_list, head, *p_len))
65 perror_msg_and_skip("set_robust_list");
66 printf("set_robust_list(%p, %lu) = 0\n",
67 head, (unsigned long) *p_len);
68
69 if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
70 perror_msg_and_skip("get_robust_list");
71 printf("get_robust_list(%d, [%s], [%lu]) = 0\n",
72 (int) pid, sprintaddr(*p_head), (unsigned long) *p_len);
73
74 puts("+++ exited with 0 +++");
75 return 0;
76 }
77
78 #else
79
80 SKIP_MAIN_UNDEFINED("__NR_get_robust_list && __NR_set_robust_list")
81
82 #endif
83