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9d4a934c AB |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
b811d2c2 | 3 | Copyright 2018-2020 Free Software Foundation, Inc. |
9d4a934c AB |
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 <unistd.h> | |
19 | #include <stdlib.h> | |
20 | ||
21 | static void | |
22 | breakpt () | |
23 | { | |
24 | asm ("" ::: "memory"); | |
25 | } | |
26 | ||
27 | static void | |
28 | go_child () | |
29 | { | |
30 | breakpt (); | |
31 | ||
32 | while (1) | |
33 | sleep (1); | |
34 | } | |
35 | ||
36 | static void | |
37 | go_parent () | |
38 | { | |
39 | breakpt (); | |
40 | ||
41 | while (1) | |
42 | sleep (1); | |
43 | } | |
44 | ||
45 | int | |
46 | main () | |
47 | { | |
48 | pid_t pid; | |
49 | ||
50 | pid = fork (); | |
51 | if (pid == -1) | |
52 | abort (); | |
53 | ||
54 | if (pid == 0) | |
55 | go_child (); | |
56 | else | |
57 | go_parent (); | |
58 | ||
59 | exit (EXIT_SUCCESS); | |
60 | } |