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