1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
|
/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <tst-stack-align.h>
#include <unistd.h>
static int res, fds[2], result;
static bool test_destructors;
extern void in_dso (int *, bool *, int *);
static void __attribute__ ((constructor)) con (void)
{
res = TEST_STACK_ALIGN () ? -1 : 1;
}
static void __attribute__ ((destructor)) des (void)
{
if (!test_destructors)
return;
char c = TEST_STACK_ALIGN () ? 'B' : 'A';
write (fds[1], &c, 1);
}
static int
do_test (void)
{
if (!res)
{
puts ("binary's constructor has not been run");
result = 1;
}
else if (res != 1)
{
puts ("binary's constructor has been run without sufficient alignment");
result = 1;
}
if (TEST_STACK_ALIGN ())
{
puts ("insufficient stack alignment in do_test");
result = 1;
}
in_dso (&result, &test_destructors, &fds[1]);
if (pipe (fds) < 0)
{
printf ("couldn't create pipe: %m\n");
return 1;
}
pid_t pid = fork ();
if (pid < 0)
{
printf ("fork failed: %m\n");
return 1;
}
if (!pid)
{
close (fds[0]);
test_destructors = true;
exit (0);
}
close (fds[1]);
unsigned char c;
ssize_t len;
int des_seen = 0, dso_des_seen = 0;
while ((len = TEMP_FAILURE_RETRY (read (fds[0], &c, 1))) > 0)
{
switch (c)
{
case 'B':
puts ("insufficient alignment in binary's destructor");
result = 1;
/* FALLTHROUGH */
case 'A':
des_seen++;
break;
case 'D':
puts ("insufficient alignment in DSO destructor");
result = 1;
/* FALLTHROUGH */
case 'C':
dso_des_seen++;
break;
default:
printf ("unexpected character %x read from pipe", c);
result = 1;
break;
}
}
close (fds[0]);
if (des_seen != 1)
{
printf ("binary destructor run %d times instead of once\n", des_seen);
result = 1;
}
if (dso_des_seen != 1)
{
printf ("DSO destructor run %d times instead of once\n", dso_des_seen);
result = 1;
}
int status;
pid_t termpid;
termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
if (termpid == -1)
{
printf ("waitpid failed: %m\n");
result = 1;
}
else if (termpid != pid)
{
printf ("waitpid returned %ld != %ld\n",
(long int) termpid, (long int) pid);
result = 1;
}
else if (!WIFEXITED (status) || WEXITSTATUS (status))
{
puts ("child hasn't exited with exit status 0");
result = 1;
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|