1 | /* Copyright (C) 2003-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <dlfcn.h> |
19 | #include <errno.h> |
20 | #include <pthread.h> |
21 | #include <signal.h> |
22 | #include <semaphore.h> |
23 | #include <stdint.h> |
24 | #include <stdio.h> |
25 | #include <stdlib.h> |
26 | #include <unistd.h> |
27 | #include <pthreaddef.h> |
28 | |
29 | #define THE_SIG SIGUSR1 |
30 | |
31 | /* The stack size can be overriden. With a sufficiently large stack |
32 | size, thread stacks for terminated threads are freed, but this does |
33 | not happen with the default size of 1 MiB. */ |
34 | enum { default_stack_size_in_mb = 1 }; |
35 | static long stack_size_in_mb; |
36 | |
37 | #define N 10 |
38 | static pthread_t th[N]; |
39 | |
40 | |
41 | static int do_test (void); |
42 | |
43 | #define TEST_FUNCTION do_test () |
44 | #include "../test-skeleton.c" |
45 | |
46 | #define CB(n) \ |
47 | static void \ |
48 | cb##n (void) \ |
49 | { \ |
50 | if (th[n] != pthread_self ()) \ |
51 | { \ |
52 | write_message ("wrong callback\n"); \ |
53 | _exit (1); \ |
54 | } \ |
55 | } |
56 | CB (0) |
57 | CB (1) |
58 | CB (2) |
59 | CB (3) |
60 | CB (4) |
61 | CB (5) |
62 | CB (6) |
63 | CB (7) |
64 | CB (8) |
65 | CB (9) |
66 | static void (*cbs[]) (void) = |
67 | { |
68 | cb0, cb1, cb2, cb3, cb4, cb5, cb6, cb7, cb8, cb9 |
69 | }; |
70 | |
71 | |
72 | sem_t s; |
73 | |
74 | |
75 | pthread_barrier_t b; |
76 | |
77 | #define TOTAL_SIGS 1000 |
78 | int nsigs; |
79 | |
80 | |
81 | int |
82 | do_test (void) |
83 | { |
84 | if (stack_size_in_mb == 0) |
85 | stack_size_in_mb = default_stack_size_in_mb; |
86 | |
87 | if ((uintptr_t) pthread_self () & (TCB_ALIGNMENT - 1)) |
88 | { |
89 | puts (s: "initial thread's struct pthread not aligned enough" ); |
90 | exit (1); |
91 | } |
92 | |
93 | if (pthread_barrier_init (barrier: &b, NULL, N + 1) != 0) |
94 | { |
95 | puts (s: "barrier_init failed" ); |
96 | exit (1); |
97 | } |
98 | |
99 | if (sem_init (sem: &s, pshared: 0, value: 0) != 0) |
100 | { |
101 | puts (s: "sem_init failed" ); |
102 | exit (1); |
103 | } |
104 | |
105 | void *h = dlopen (file: "tst-tls3mod.so" , RTLD_LAZY); |
106 | if (h == NULL) |
107 | { |
108 | puts (s: "dlopen failed" ); |
109 | exit (1); |
110 | } |
111 | |
112 | void *(*tf) (void *) = dlsym (handle: h, name: "tf" ); |
113 | if (tf == NULL) |
114 | { |
115 | puts (s: "dlsym for tf failed" ); |
116 | exit (1); |
117 | } |
118 | |
119 | struct sigaction sa; |
120 | sa.sa_handler = dlsym (handle: h, name: "handler" ); |
121 | if (sa.sa_handler == NULL) |
122 | { |
123 | puts (s: "dlsym for handler failed" ); |
124 | exit (1); |
125 | } |
126 | sigemptyset (&sa.sa_mask); |
127 | sa.sa_flags = 0; |
128 | if (sigaction (THE_SIG, act: &sa, NULL) != 0) |
129 | { |
130 | puts (s: "sigaction failed" ); |
131 | exit (1); |
132 | } |
133 | |
134 | pthread_attr_t a; |
135 | |
136 | if (pthread_attr_init (attr: &a) != 0) |
137 | { |
138 | puts (s: "attr_init failed" ); |
139 | exit (1); |
140 | } |
141 | |
142 | if (pthread_attr_setstacksize (attr: &a, stacksize: stack_size_in_mb * 1024 * 1024) != 0) |
143 | { |
144 | puts (s: "attr_setstacksize failed" ); |
145 | return 1; |
146 | } |
147 | |
148 | int r; |
149 | for (r = 0; r < 10; ++r) |
150 | { |
151 | int i; |
152 | for (i = 0; i < N; ++i) |
153 | if (pthread_create (newthread: &th[i], attr: &a, start_routine: tf, arg: cbs[i]) != 0) |
154 | { |
155 | puts (s: "pthread_create failed" ); |
156 | exit (1); |
157 | } |
158 | |
159 | nsigs = 0; |
160 | |
161 | pthread_barrier_wait (barrier: &b); |
162 | |
163 | sigset_t ss; |
164 | sigemptyset (&ss); |
165 | sigaddset (&ss, THE_SIG); |
166 | if (pthread_sigmask (SIG_BLOCK, newmask: &ss, NULL) != 0) |
167 | { |
168 | puts (s: "pthread_sigmask failed" ); |
169 | exit (1); |
170 | } |
171 | |
172 | /* Start sending signals. */ |
173 | for (i = 0; i < TOTAL_SIGS; ++i) |
174 | { |
175 | if (kill (pid: getpid (), THE_SIG) != 0) |
176 | { |
177 | puts (s: "kill failed" ); |
178 | exit (1); |
179 | } |
180 | |
181 | if (TEMP_FAILURE_RETRY (sem_wait (&s)) != 0) |
182 | { |
183 | puts (s: "sem_wait failed" ); |
184 | exit (1); |
185 | } |
186 | |
187 | ++nsigs; |
188 | } |
189 | |
190 | pthread_barrier_wait (barrier: &b); |
191 | |
192 | if (pthread_sigmask (SIG_UNBLOCK, newmask: &ss, NULL) != 0) |
193 | { |
194 | puts (s: "pthread_sigmask failed" ); |
195 | exit (1); |
196 | } |
197 | |
198 | for (i = 0; i < N; ++i) |
199 | if (pthread_join (th: th[i], NULL) != 0) |
200 | { |
201 | puts (s: "join failed" ); |
202 | exit (1); |
203 | } |
204 | } |
205 | |
206 | if (pthread_attr_destroy (attr: &a) != 0) |
207 | { |
208 | puts (s: "attr_destroy failed" ); |
209 | exit (1); |
210 | } |
211 | |
212 | return 0; |
213 | } |
214 | |