|
Packit |
6c4009 |
/* Test for pvalloc.
|
|
Packit |
6c4009 |
Copyright (C) 2013-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <errno.h>
|
|
Packit |
6c4009 |
#include <malloc.h>
|
|
Packit |
6c4009 |
#include <stdio.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <unistd.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static int errors = 0;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static void
|
|
Packit |
6c4009 |
merror (const char *msg)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
++errors;
|
|
Packit |
6c4009 |
printf ("Error: %s\n", msg);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
static int
|
|
Packit |
6c4009 |
do_test (void)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
void *p;
|
|
Packit |
6c4009 |
unsigned long pagesize = getpagesize ();
|
|
Packit |
6c4009 |
unsigned long ptrval;
|
|
Packit |
6c4009 |
int save;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
errno = 0;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* An attempt to allocate a huge value should return NULL and set
|
|
Packit |
6c4009 |
errno to ENOMEM. */
|
|
Packit |
6c4009 |
p = pvalloc (-1);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
save = errno;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p != NULL)
|
|
Packit |
6c4009 |
merror ("pvalloc (-1) succeeded.");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p == NULL && save != ENOMEM)
|
|
Packit |
6c4009 |
merror ("pvalloc (-1) errno is not set correctly");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
free (p);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
errno = 0;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Test to expose integer overflow in malloc internals from BZ #15855. */
|
|
Packit |
6c4009 |
p = pvalloc (-pagesize);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
save = errno;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p != NULL)
|
|
Packit |
6c4009 |
merror ("pvalloc (-pagesize) succeeded.");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p == NULL && save != ENOMEM)
|
|
Packit |
6c4009 |
merror ("pvalloc (-pagesize) errno is not set correctly");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
free (p);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* A zero-sized allocation should succeed with glibc, returning a
|
|
Packit |
6c4009 |
non-NULL value. */
|
|
Packit |
6c4009 |
p = pvalloc (0);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p == NULL)
|
|
Packit |
6c4009 |
merror ("pvalloc (0) failed.");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
free (p);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* Check the alignment of the returned pointer is correct. */
|
|
Packit |
6c4009 |
p = pvalloc (32);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if (p == NULL)
|
|
Packit |
6c4009 |
merror ("pvalloc (32) failed.");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
ptrval = (unsigned long) p;
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
if ((ptrval & (pagesize - 1)) != 0)
|
|
Packit |
6c4009 |
merror ("returned pointer is not page aligned.");
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
free (p);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
return errors != 0;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#define TEST_FUNCTION do_test ()
|
|
Packit |
6c4009 |
#include "../test-skeleton.c"
|