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0a39bb32 PA |
1 | /* This testcase is part of GDB, the GNU debugger. |
2 | ||
618f726f | 3 | Copyright 2015-2016 Free Software Foundation, Inc. |
0a39bb32 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 <assert.h> | |
19 | #include <pthread.h> | |
20 | #include <unistd.h> | |
21 | #include <setjmp.h> | |
22 | ||
23 | /* Number of threads. */ | |
24 | #define NTHREADS 10 | |
25 | ||
26 | /* When set, threads exit. */ | |
27 | volatile int break_out; | |
28 | ||
29 | pthread_barrier_t barrier; | |
30 | ||
31 | /* Entry point for threads that setjmp/longjmp. */ | |
32 | ||
33 | static void * | |
34 | thread_longjmp (void *arg) | |
35 | { | |
36 | jmp_buf env; | |
37 | ||
38 | pthread_barrier_wait (&barrier); | |
39 | ||
40 | while (!break_out) | |
41 | { | |
42 | if (setjmp (env) == 0) | |
43 | longjmp (env, 1); | |
44 | ||
45 | usleep (1); | |
46 | } | |
47 | return NULL; | |
48 | } | |
49 | ||
50 | /* Entry point for threads that try/catch. */ | |
51 | ||
52 | static void * | |
53 | thread_try_catch (void *arg) | |
54 | { | |
55 | volatile unsigned int counter = 0; | |
56 | ||
57 | pthread_barrier_wait (&barrier); | |
58 | ||
59 | while (!break_out) | |
60 | { | |
61 | try | |
62 | { | |
63 | throw 1; | |
64 | } | |
65 | catch (...) | |
66 | { | |
67 | counter++; | |
68 | } | |
69 | ||
70 | usleep (1); | |
71 | } | |
72 | return NULL; | |
73 | } | |
74 | ||
75 | int | |
76 | main (void) | |
77 | { | |
78 | pthread_t threads[NTHREADS]; | |
79 | int i; | |
80 | int ret; | |
81 | ||
82 | /* Don't run forever. */ | |
83 | alarm (180); | |
84 | ||
85 | pthread_barrier_init (&barrier, NULL, NTHREADS + 1); | |
86 | ||
87 | for (i = 0; i < NTHREADS; i++) | |
88 | { | |
89 | /* Half of the threads does setjmp/longjmp, the other half does | |
90 | try/catch. */ | |
91 | if ((i % 2) == 0) | |
92 | ret = pthread_create (&threads[i], NULL, thread_longjmp , NULL); | |
93 | else | |
94 | ret = pthread_create (&threads[i], NULL, thread_try_catch , NULL); | |
95 | assert (ret == 0); | |
96 | } | |
97 | ||
98 | /* Wait until all threads are running. */ | |
99 | pthread_barrier_wait (&barrier); | |
100 | ||
101 | #define LINE usleep (1) | |
102 | ||
103 | /* The other thread's setjmp/longjmp/try/catch should not disturb | |
104 | this thread's stepping over these lines. */ | |
105 | ||
106 | LINE; /* set break here */ | |
107 | LINE; /* line 1 */ | |
108 | LINE; /* line 2 */ | |
109 | LINE; /* line 3 */ | |
110 | LINE; /* line 4 */ | |
111 | LINE; /* line 5 */ | |
112 | LINE; /* line 6 */ | |
113 | LINE; /* line 7 */ | |
114 | LINE; /* line 8 */ | |
115 | LINE; /* line 9 */ | |
116 | LINE; /* line 10 */ | |
117 | ||
118 | break_out = 1; | |
119 | ||
120 | for (i = 0; i < NTHREADS; i++) | |
121 | { | |
122 | ret = pthread_join (threads[i], NULL); | |
123 | assert (ret == 0); | |
124 | } | |
125 | ||
126 | return 0; | |
127 | } |