diff options
Diffstat (limited to 'libc/malloc/tst-posix_memalign.c')
-rw-r--r-- | libc/malloc/tst-posix_memalign.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/libc/malloc/tst-posix_memalign.c b/libc/malloc/tst-posix_memalign.c new file mode 100644 index 000000000..27c0dd2bd --- /dev/null +++ b/libc/malloc/tst-posix_memalign.c @@ -0,0 +1,108 @@ +/* Test for posix_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 <stdlib.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; + int ret; + unsigned long pagesize = getpagesize (); + unsigned long ptrval; + + p = NULL; + + /* An attempt to allocate a huge value should return ENOMEM and + p should remain NULL. */ + ret = posix_memalign (&p, sizeof (void *), -1); + + if (ret != ENOMEM) + merror ("posix_memalign (&p, sizeof (void *), -1) succeeded."); + + if (ret == ENOMEM && p != NULL) + merror ("returned an error but pointer was modified"); + + free (p); + + p = NULL; + + /* Test to expose integer overflow in malloc internals from BZ #15857. */ + ret = posix_memalign (&p, pagesize, -pagesize); + + if (ret != ENOMEM) + merror ("posix_memalign (&p, pagesize, -pagesize) succeeded."); + + free (p); + + p = NULL; + + /* A zero-sized allocation should succeed with glibc, returning zero + and setting p to a non-NULL value. */ + ret = posix_memalign (&p, sizeof (void *), 0); + + if (ret != 0 || p == NULL) + merror ("posix_memalign (&p, sizeof (void *), 0) failed."); + + free (p); + + ret = posix_memalign (&p, 0x300, 10); + + if (ret != EINVAL) + merror ("posix_memalign (&p, 0x300, 10) succeeded."); + + ret = posix_memalign (&p, 0, 10); + + if (ret != EINVAL) + merror ("posix_memalign (&p, 0, 10) succeeded."); + + p = NULL; + + ret = posix_memalign (&p, 0x100, 10); + + if (ret != 0) + merror ("posix_memalign (&p, 0x100, 10) failed."); + + if (ret == 0 && p == NULL) + merror ("returned success but pointer is NULL"); + + ptrval = (unsigned long) p; + + if (ret == 0 && (ptrval & 0xff) != 0) + merror ("pointer is not aligned to 0x100"); + + free (p); + + return errors != 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |