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malloc: Add memalign test.

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ChangeLog:

2013-10-04  Will Newton  <will.newton@linaro.org>

    * malloc/Makefile: Add tst-memalign.
    * malloc/tst-memalign.c: New file.
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Will Newton 2013-08-16 17:06:10 +01:00
parent 4cb81307b3
commit 215c7d4344
3 changed files with 105 additions and 1 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2013-10-04 Will Newton <will.newton@linaro.org>
* malloc/Makefile: Add tst-memalign.
* malloc/tst-memalign.c: New file.
2013-10-04 Alan Modra <amodra@gmail.com>
* sysdeps/powerpc/powerpc32/dl-machine.c (__process_machine_rela):

2
malloc/Makefile
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@ -27,7 +27,7 @@ headers := $(dist-headers) obstack.h mcheck.h
tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \
tst-mallocstate tst-mcheck tst-mallocfork tst-trim1 \
tst-malloc-usable tst-realloc tst-posix_memalign \
tst-pvalloc
tst-pvalloc tst-memalign
test-srcs = tst-mtrace
routines = malloc morecore mcheck mtrace obstack

99
malloc/tst-memalign.c Normal file
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@ -0,0 +1,99 @@
/* Test for memalign.
Copyright (C) 2013 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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 <malloc.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
static int errors = 0;
static void
merror (const char *msg)
{
++errors;
printf ("Error: %s\n", msg);
}
static int
do_test (void)
{
void *p;
unsigned long pagesize = getpagesize ();
unsigned long ptrval;
int save;
errno = 0;
/* An attempt to allocate a huge value should return NULL and set
errno to ENOMEM. */
p = memalign (sizeof (void *), -1);
save = errno;
if (p != NULL)
merror ("memalign (sizeof (void *), -1) succeeded.");
if (p == NULL && save != ENOMEM)
merror ("memalign (sizeof (void *), -1) errno is not set correctly");
free (p);
errno = 0;
/* Test to expose integer overflow in malloc internals from BZ #15857. */
p = memalign (pagesize, -pagesize);
save = errno;
if (p != NULL)
merror ("memalign (pagesize, -pagesize) succeeded.");
if (p == NULL && save != ENOMEM)
merror ("memalign (pagesize, -pagesize) errno is not set correctly");
free (p);
/* A zero-sized allocation should succeed with glibc, returning a
non-NULL value. */
p = memalign (sizeof (void *), 0);
if (p == NULL)
merror ("memalign (sizeof (void *), 0) failed.");
free (p);
/* Check the alignment of the returned pointer is correct. */
p = memalign (0x100, 10);
if (p == NULL)
merror ("memalign (0x100, 10) failed.");
ptrval = (unsigned long) p;
if ((ptrval & 0xff) != 0)
merror ("pointer is not aligned to 0x100");
free (p);
return errors != 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"