glibc/malloc/tst-mallocalign1.c
H.J. Lu dc76a059fd Add a generic malloc test for MALLOC_ALIGNMENT
1. Add sysdeps/generic/malloc-size.h to define size related macros for
malloc.
2. Move x86_64/tst-mallocalign1.c to malloc and replace ALIGN_MASK with
MALLOC_ALIGN_MASK.
3. Add tst-mallocalign1 to tests-exclude-mcheck for i386 and x32 since
mcheck doesn't honor MALLOC_ALIGNMENT.
2021-07-09 06:39:30 -07:00

72 lines
1.7 KiB
C

/* Verify that MALLOC_ALIGNMENT is honored by malloc.
Copyright (C) 2012-2021 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
<https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <malloc-size.h>
static void *
test (size_t s)
{
void *p = malloc (s);
printf ("malloc: %zu, %p: %zu\n", s, p,
((uintptr_t) p) & MALLOC_ALIGN_MASK);
return p;
}
static int
do_test (void)
{
void *p;
int ret = 0;
p = test (2);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (8);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (13);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (16);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (23);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (43);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
p = test (123);
ret |= (uintptr_t) p & MALLOC_ALIGN_MASK;
free (p);
return ret;
}
#include <support/test-driver.c>