1 /*
2 * Check decoding of getcpu syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * Copyright (c) 2016-2017 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32
33 #include <asm/unistd.h>
34
35 #ifdef __NR_getcpu
36
37 # include <stdio.h>
38 # include <unistd.h>
39
40 int
main(void)41 main(void)
42 {
43 unsigned *bogus_cpu =
44 (unsigned *) tail_alloc(sizeof(*bogus_cpu)) + 1;
45 unsigned *bogus_node =
46 (unsigned *) tail_alloc(sizeof(*bogus_node)) + 1;
47 unsigned *bogus_tcache =
48 (unsigned *) tail_alloc(sizeof(*bogus_tcache)) + 1;
49
50 long res;
51 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned, cpu);
52 TAIL_ALLOC_OBJECT_CONST_PTR(unsigned, node);
53 long *tcache = tail_alloc(128);
54
55 res = syscall(__NR_getcpu, NULL, NULL, NULL);
56 printf("getcpu(NULL, NULL, NULL) = %s\n", sprintrc(res));
57
58 res = syscall(__NR_getcpu, bogus_cpu, bogus_node, bogus_tcache);
59 printf("getcpu(%p, %p, %p) = %s\n",
60 bogus_cpu, bogus_node, bogus_tcache, sprintrc(res));
61
62 res = syscall(__NR_getcpu, cpu, node, tcache);
63 if (res != 0)
64 perror_msg_and_skip("getcpu");
65
66 printf("getcpu([%u], [%u], %p) = 0\n", *cpu, *node, tcache);
67
68 puts("+++ exited with 0 +++");
69
70 return 0;
71 }
72
73 #else
74
75 SKIP_MAIN_UNDEFINED("__NR_getcpu");
76
77 #endif
78