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5c5019c2 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
3 | Copyright 2015 Free Software Foundation, Inc. | |
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 | Test that GDB doesn't lose an event for a thread it didn't know | |
19 | about, until an event is reported for it. */ | |
20 | ||
21 | #define _GNU_SOURCE | |
22 | #include <sched.h> | |
23 | #include <assert.h> | |
24 | #include <stdlib.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/wait.h> | |
27 | ||
28 | #define STACK_SIZE 0x1000 | |
29 | ||
30 | int clone_pid; | |
31 | ||
32 | static int | |
33 | clone_fn (void *unused) | |
34 | { | |
35 | return 0; | |
36 | } | |
37 | ||
38 | void * | |
39 | thread_fn (void *arg) | |
40 | { | |
41 | unsigned char *stack; | |
42 | int res; | |
43 | ||
44 | stack = malloc (STACK_SIZE); | |
45 | assert (stack != NULL); | |
46 | ||
47 | #ifdef __ia64__ | |
48 | clone_pid = __clone2 (clone_fn, stack, STACK_SIZE, CLONE_VM, NULL); | |
49 | #else | |
50 | clone_pid = clone (clone_fn, stack + STACK_SIZE, CLONE_VM, NULL); | |
51 | #endif | |
52 | ||
53 | assert (clone_pid > 0); | |
54 | ||
55 | /* Wait for child. */ | |
56 | res = waitpid (clone_pid, NULL, __WCLONE); | |
57 | assert (res != -1); | |
58 | ||
59 | return NULL; | |
60 | } | |
61 | ||
62 | int | |
63 | main (int argc, char **argv) | |
64 | { | |
65 | pthread_t child; | |
66 | ||
67 | alarm (300); | |
68 | ||
69 | pthread_create (&child, NULL, thread_fn, NULL); | |
70 | pthread_join (child); | |
71 | ||
72 | return 0; | |
73 | } |