1/* $NetBSD$ */
2
3/*
4 * Copyright (c) 2008 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/*
30 * Program to test atexit(3) and __cxa_atexit()/__cxa_finalize().
31 *
32 * Written by Jason R. Thorpe, February 2003.
33 * Public domain.
34 */
35
36#include <sys/cdefs.h>
37__COPYRIGHT("@(#) Copyright (c) 2008\
38 The NetBSD Foundation, inc. All rights reserved.");
39__RCSID("$NetBSD$");
40
41#include <stdio.h>
42#include <stdlib.h>
43#include <signal.h>
44#include <string.h>
45#include <unistd.h>
46
47extern int __cxa_atexit(void (*func)(void *), void *, void *);
48extern void __cxa_finalize(void *);
49
50static int dso_handle_1;
51static int dso_handle_2;
52static int dso_handle_3;
53
54static int arg_1;
55static int arg_2;
56static int arg_3;
57
58static int exiting_state;
59
60#define    ASSERT(expr)                                     \
61do {                                                        \
62	if ((expr) == 0) {                                      \
63		write(STDERR_FILENO, __func__, strlen(__func__));   \
64		write(STDERR_FILENO, ": ", 2);                      \
65		write(STDERR_FILENO, __STRING(expr),                \
66			  strlen(__STRING(expr)));                      \
67		write(STDERR_FILENO, "\n", 1);                      \
68		my_abort();                                         \
69	}                                                       \
70} while (/*CONSTCOND*/0)
71
72#define    SUCCESS()                                        \
73do {                                                        \
74	write(STDOUT_FILENO, __func__, strlen(__func__));       \
75	write(STDOUT_FILENO, "\n", 1);                          \
76} while (/*CONSTCOND*/0)
77
78static void
79my_abort(void)
80{
81
82	kill(getpid(), SIGABRT);
83	/* NOTREACHED */
84}
85
86static void
87cxa_handler_5(void *arg)
88{
89	static int cxa_handler_5_called;
90
91	ASSERT(arg == (void *)&arg_1);
92	ASSERT(cxa_handler_5_called == 0);
93	ASSERT(exiting_state == 5);
94
95	exiting_state--;
96	cxa_handler_5_called = 1;
97	SUCCESS();
98}
99
100static void
101cxa_handler_4(void *arg)
102{
103	static int cxa_handler_4_called;
104
105	ASSERT(arg == (void *)&arg_1);
106	ASSERT(cxa_handler_4_called == 0);
107	ASSERT(exiting_state == 4);
108
109	exiting_state--;
110	cxa_handler_4_called = 1;
111	SUCCESS();
112}
113
114static void
115cxa_handler_3(void *arg)
116{
117	static int cxa_handler_3_called;
118
119	ASSERT(arg == (void *)&arg_2);
120	ASSERT(cxa_handler_3_called == 0);
121	ASSERT(exiting_state == 3);
122
123	exiting_state--;
124	cxa_handler_3_called = 1;
125	SUCCESS();
126}
127
128static void
129cxa_handler_2(void *arg)
130{
131	static int cxa_handler_2_called;
132
133	ASSERT(arg == (void *)&arg_3);
134	ASSERT(cxa_handler_2_called == 0);
135	ASSERT(exiting_state == 2);
136
137	exiting_state--;
138	cxa_handler_2_called = 1;
139	SUCCESS();
140}
141
142static void
143normal_handler_1(void)
144{
145	static int normal_handler_1_called;
146
147	ASSERT(normal_handler_1_called == 0);
148	ASSERT(exiting_state == 1);
149
150	exiting_state--;
151	normal_handler_1_called = 1;
152	SUCCESS();
153}
154
155static void
156normal_handler_0(void)
157{
158	static int normal_handler_0_called;
159
160	ASSERT(normal_handler_0_called == 0);
161	ASSERT(exiting_state == 0);
162
163	normal_handler_0_called = 1;
164	SUCCESS();
165}
166
167int
168main(int argc, char *argv[])
169{
170
171	exiting_state = 5;
172
173	ASSERT(0 == atexit(normal_handler_0));
174	ASSERT(0 == atexit(normal_handler_1));
175	ASSERT(0 == __cxa_atexit(cxa_handler_4, &arg_1, &dso_handle_1));
176	ASSERT(0 == __cxa_atexit(cxa_handler_5, &arg_1, &dso_handle_1));
177	ASSERT(0 == __cxa_atexit(cxa_handler_3, &arg_2, &dso_handle_2));
178	ASSERT(0 == __cxa_atexit(cxa_handler_2, &arg_3, &dso_handle_3));
179
180	__cxa_finalize(&dso_handle_1);
181	__cxa_finalize(&dso_handle_2);
182	exit(0);
183}
184