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b73715df TV |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
88b9d363 | 3 | Copyright 2019-2022 Free Software Foundation, Inc. |
b73715df TV |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include <stdio.h> | |
19 | #include <unistd.h> | |
20 | #include <pthread.h> | |
21 | #include <string.h> | |
22 | #include <stdlib.h> | |
23 | ||
24 | static char *program_name; | |
25 | ||
26 | static void * | |
27 | f (void *arg) | |
28 | { | |
29 | int res = vfork (); | |
30 | ||
31 | if (res == -1) | |
32 | { | |
33 | perror ("vfork"); | |
34 | return NULL; | |
35 | } | |
36 | else if (res == 0) | |
37 | { | |
38 | /* Child. */ | |
39 | execl (program_name, program_name, "1", NULL); | |
40 | perror ("exec"); | |
41 | abort (); | |
42 | } | |
43 | else | |
44 | { | |
45 | /* Parent. */ | |
46 | return NULL; | |
47 | } | |
48 | } | |
49 | ||
50 | int | |
51 | main (int argc, char **argv) | |
52 | { | |
53 | pthread_t tid; | |
54 | ||
55 | if (argc > 1) | |
56 | { | |
57 | /* Getting here via execl. */ | |
58 | return 0; | |
59 | } | |
60 | ||
61 | program_name = argv[0]; | |
62 | ||
63 | pthread_create (&tid, NULL, f, NULL); | |
64 | pthread_join (tid, NULL); | |
65 | return 0; | |
66 | } |