1/* Copyright (C) 2003-2024 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 <pthread.h>
19#include <shlib-compat.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <unistd.h>
23
24#include <support/xunistd.h>
25
26/* LinuxThreads pthread_cleanup_{push,pop} helpers. */
27extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer,
28 void (*__routine) (void *),
29 void *__arg);
30compat_symbol_reference (libpthread, _pthread_cleanup_push,
31 _pthread_cleanup_push, GLIBC_2_0);
32extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer,
33 int __execute);
34compat_symbol_reference (libpthread, _pthread_cleanup_pop,
35 _pthread_cleanup_pop, GLIBC_2_0);
36
37static int fds[2];
38static pthread_barrier_t b2;
39static int global;
40
41/* Defined in tst-cleanup4aux.c, never compiled with -fexceptions. */
42extern void fn5 (void);
43extern void fn7 (void);
44extern void fn9 (void);
45
46void
47clh (void *arg)
48{
49 int val = (long int) arg;
50
51 printf (format: "clh (%d)\n", val);
52
53 global *= val;
54 global += val;
55}
56
57
58static __attribute__((noinline)) void
59fn_read (void)
60{
61 int r = pthread_barrier_wait (barrier: &b2);
62 if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
63 {
64 printf (format: "%s: barrier_wait failed\n", __FUNCTION__);
65 exit (1);
66 }
67
68 char c;
69 xread (fds[0], &c, 1);
70}
71
72
73__attribute__((noinline)) void
74fn0 (void)
75{
76 pthread_cleanup_push (clh, (void *) 1l);
77
78 fn_read ();
79
80 pthread_cleanup_pop (1);
81}
82
83
84__attribute__((noinline)) void
85fn1 (void)
86{
87 /* This is the old LinuxThreads pthread_cleanup_{push,pop}. */
88 struct _pthread_cleanup_buffer b;
89 _pthread_cleanup_push (buffer: &b, routine: clh, arg: (void *) 2l);
90
91 fn0 ();
92
93 _pthread_cleanup_pop (buffer: &b, execute: 1);
94}
95
96
97static __attribute__((noinline)) void
98fn2 (void)
99{
100 pthread_cleanup_push (clh, (void *) 3l);
101
102 fn1 ();
103
104 pthread_cleanup_pop (1);
105}
106
107
108static void *
109tf (void *a)
110{
111 switch ((long) a)
112 {
113 case 0:
114 fn2 ();
115 break;
116 case 1:
117 fn5 ();
118 break;
119 case 2:
120 fn7 ();
121 break;
122 case 3:
123 fn9 ();
124 break;
125 }
126
127 return NULL;
128}
129
130
131int
132do_test (void)
133{
134 int result = 0;
135
136 if (pipe (pipedes: fds) != 0)
137 {
138 puts (s: "pipe failed");
139 exit (1);
140 }
141
142 if (pthread_barrier_init (barrier: &b2, NULL, count: 2) != 0)
143 {
144 puts (s: "b2 init failed");
145 exit (1);
146 }
147
148 const int expect[] =
149 {
150 15, /* 1 2 3 */
151 276, /* 1 4 5 6 */
152 120, /* 1 7 8 */
153 460 /* 1 2 9 10 */
154 };
155
156 long i;
157 for (i = 0; i < 4; ++i)
158 {
159 global = 0;
160
161 printf (format: "test %ld\n", i);
162
163 pthread_t th;
164 if (pthread_create (newthread: &th, NULL, start_routine: tf, arg: (void *) i) != 0)
165 {
166 puts (s: "create failed");
167 exit (1);
168 }
169
170 int e = pthread_barrier_wait (barrier: &b2);
171 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
172 {
173 printf (format: "%s: barrier_wait failed\n", __FUNCTION__);
174 exit (1);
175 }
176
177 pthread_cancel (th: th);
178
179 void *r;
180 if ((e = pthread_join (th: th, thread_return: &r)) != 0)
181 {
182 printf (format: "join failed: %d\n", e);
183 _exit (1);
184 }
185
186 if (r != PTHREAD_CANCELED)
187 {
188 puts (s: "thread not canceled");
189 exit (1);
190 }
191
192 if (global != expect[i])
193 {
194 printf (format: "global = %d, expected %d\n", global, expect[i]);
195 result = 1;
196 }
197 }
198
199 return result;
200}
201
202#define TEST_FUNCTION do_test ()
203#include "../test-skeleton.c"
204

source code of glibc/nptl/tst-cleanup4.c