tests/lib/libc/stdlib/h_atexit.c

   1 /* $NetBSD: h_atexit.c,v 1.1 2011/01/12 19:44:08 pgoyette Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code was contributed to The NetBSD Foundation by Jason R. Thorpe.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  21  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include <sys/cdefs.h>
  32 __COPYRIGHT("@(#) Copyright (c) 2011\
  33  The NetBSD Foundation, inc. All rights reserved.");
  34 __RCSID("$NetBSD: h_atexit.c,v 1.1 2011/01/12 19:44:08 pgoyette Exp $");
  35
  36 #include <stdio.h>
  37 #include <stdlib.h>
  38 #include <signal.h>
  39 #include <string.h>
  40 #include <unistd.h>
  41
  42 extern int __cxa_atexit(void (*func)(void *), void *, void *);
  43 extern void __cxa_finalize(void *);
  44
  45 static int dso_handle_1;
  46 static int dso_handle_2;
  47 static int dso_handle_3;
  48
  49 static int arg_1;
  50 static int arg_2;
  51 static int arg_3;
  52
  53 static int exiting_state;
  54
  55 #define ASSERT(expr)                                                    \
  56 do {                                                                    \
  57         if ((expr) == 0) {                                              \
  58                 write(STDERR_FILENO, __func__, strlen(__func__));       \
  59                 write(STDERR_FILENO, ": ", 2);                          \
  60                 write(STDERR_FILENO, __STRING(expr),                    \
  61                       strlen(__STRING(expr)));                          \
  62                 write(STDERR_FILENO, "\n", 1);                          \
  63                 my_abort();                                             \
  64         }                                                               \
  65 } while (/*CONSTCOND*/0)
  66
  67 #define SUCCESS()                                                       \
  68 do {                                                                    \
  69         write(STDOUT_FILENO, __func__, strlen(__func__));               \
  70         write(STDOUT_FILENO, "\n", 1);                                  \
  71 } while (/*CONSTCOND*/0)
  72
  73 static void
  74 my_abort(void)
  75 {
  76
  77         kill(getpid(), SIGABRT);
  78         /* NOTREACHED */
  79 }
  80
  81 static void
  82 cxa_handler_5(void *arg)
  83 {
  84         static int cxa_handler_5_called;
  85
  86         ASSERT(arg == (void *)&arg_1);
  87         ASSERT(cxa_handler_5_called == 0);
  88         ASSERT(exiting_state == 5);
  89
  90         exiting_state--;
  91         cxa_handler_5_called = 1;
  92         SUCCESS();
  93 }
  94
  95 static void
  96 cxa_handler_4(void *arg)
  97 {
  98         static int cxa_handler_4_called;
  99
 100         ASSERT(arg == (void *)&arg_1);
 101         ASSERT(cxa_handler_4_called == 0);
 102         ASSERT(exiting_state == 4);
 103
 104         exiting_state--;
 105         cxa_handler_4_called = 1;
 106         SUCCESS();
 107 }
 108
 109 static void
 110 cxa_handler_3(void *arg)
 111 {
 112         static int cxa_handler_3_called;
 113
 114         ASSERT(arg == (void *)&arg_2);
 115         ASSERT(cxa_handler_3_called == 0);
 116         ASSERT(exiting_state == 3);
 117
 118         exiting_state--;
 119         cxa_handler_3_called = 1;
 120         SUCCESS();
 121 }
 122
 123 static void
 124 cxa_handler_2(void *arg)
 125 {
 126         static int cxa_handler_2_called;
 127
 128         ASSERT(arg == (void *)&arg_3);
 129         ASSERT(cxa_handler_2_called == 0);
 130         ASSERT(exiting_state == 2);
 131
 132         exiting_state--;
 133         cxa_handler_2_called = 1;
 134         SUCCESS();
 135 }
 136
 137 static void
 138 normal_handler_1(void)
 139 {
 140         static int normal_handler_1_called;
 141
 142         ASSERT(normal_handler_1_called == 0);
 143         ASSERT(exiting_state == 1);
 144
 145         exiting_state--;
 146         normal_handler_1_called = 1;
 147         SUCCESS();
 148 }
 149
 150 static void
 151 normal_handler_0(void)
 152 {
 153         static int normal_handler_0_called;
 154
 155         ASSERT(normal_handler_0_called == 0);
 156         ASSERT(exiting_state == 0);
 157
 158         normal_handler_0_called = 1;
 159         SUCCESS();
 160 }
 161
 162 int
 163 main(int argc, char *argv[])
 164 {
 165
 166         exiting_state = 5;
 167
 168         ASSERT(0 == atexit(normal_handler_0));
 169         ASSERT(0 == atexit(normal_handler_1));
 170         ASSERT(0 == __cxa_atexit(cxa_handler_4, &arg_1, &dso_handle_1));
 171         ASSERT(0 == __cxa_atexit(cxa_handler_5, &arg_1, &dso_handle_1));
 172         ASSERT(0 == __cxa_atexit(cxa_handler_3, &arg_2, &dso_handle_2));
 173         ASSERT(0 == __cxa_atexit(cxa_handler_2, &arg_3, &dso_handle_3));
 174
 175         __cxa_finalize(&dso_handle_1);
 176         __cxa_finalize(&dso_handle_2);
 177         exit(0);
 178 }