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0e5bf2a8 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
32d0add0 | 3 | Copyright 2009-2015 Free Software Foundation, Inc. |
0e5bf2a8 PA |
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 <pthread.h> | |
19 | #include <unistd.h> | |
20 | #include <stdlib.h> | |
21 | #include <assert.h> | |
22 | ||
23 | static const char *image; | |
24 | static volatile pthread_t main_thread; | |
25 | static char *argv1 = "go away"; | |
26 | ||
27 | static void * | |
28 | thread_execler (void *arg) | |
29 | { | |
30 | int i; | |
31 | ||
32 | i = pthread_join (main_thread, NULL); | |
33 | assert (i == 0); | |
34 | ||
35 | /* Exec ourselves again. */ | |
36 | if (execl (image, image, argv1, NULL) == -1) /* break-here */ | |
37 | { | |
38 | perror ("execl"); | |
39 | abort (); | |
40 | } | |
41 | ||
42 | return NULL; | |
43 | } | |
44 | ||
45 | int | |
46 | main (int argc, char **argv) | |
47 | { | |
48 | pthread_t thread; | |
49 | int i; | |
50 | ||
51 | image = argv[0]; | |
52 | ||
53 | /* Pass "inf" as argument to keep re-execing ad infinitum, which can | |
54 | be useful for manual testing. Passing any other argument exits | |
55 | immediately (and that's what the execl above does by | |
56 | default). */ | |
57 | if (argc == 2 && strcmp (argv[1], "inf") == 0) | |
58 | argv1 = argv[1]; | |
59 | else if (argc > 1) | |
60 | exit (0); | |
61 | ||
62 | main_thread = pthread_self (); | |
63 | ||
64 | i = pthread_create (&thread, NULL, thread_execler, NULL); | |
65 | assert (i == 0); | |
66 | ||
67 | pthread_exit (NULL); | |
68 | /* NOTREACHED */ | |
69 | return 0; | |
70 | } |