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359f5fe6 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
8acc9f48 | 3 | Copyright 2009-2013 Free Software Foundation, Inc. |
359f5fe6 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 | 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 <signal.h> | |
26 | #include <sys/types.h> | |
27 | #include <unistd.h> | |
28 | #include <sys/syscall.h> | |
29 | ||
30 | #include <features.h> | |
31 | #ifdef __UCLIBC__ | |
32 | #if !(defined(__UCLIBC_HAS_MMU__) || defined(__ARCH_HAS_MMU__)) | |
33 | #define HAS_NOMMU | |
34 | #endif | |
35 | #endif | |
36 | ||
37 | #define STACK_SIZE 0x1000 | |
38 | ||
39 | static int | |
40 | tkill (int lwpid, int signo) | |
41 | { | |
42 | return syscall (__NR_tkill, lwpid, signo); | |
43 | } | |
44 | ||
45 | static pid_t | |
46 | gettid (void) | |
47 | { | |
48 | return syscall (__NR_gettid); | |
49 | } | |
50 | ||
51 | static int | |
52 | fn (void *unused) | |
53 | { | |
54 | tkill (gettid (), SIGUSR1); | |
55 | return 0; | |
56 | } | |
57 | ||
58 | int | |
59 | main (int argc, char **argv) | |
60 | { | |
61 | unsigned char *stack; | |
62 | int new_pid; | |
63 | ||
64 | stack = malloc (STACK_SIZE); | |
65 | assert (stack != NULL); | |
66 | ||
67 | new_pid = clone (fn, stack + STACK_SIZE, CLONE_FILES | |
68 | #if defined(__UCLIBC__) && defined(HAS_NOMMU) | |
69 | | CLONE_VM | |
70 | #endif /* defined(__UCLIBC__) && defined(HAS_NOMMU) */ | |
71 | , NULL, NULL, NULL, NULL); | |
72 | assert (new_pid > 0); | |
73 | ||
74 | return 0; | |
75 | } |