glibc/malloc/tst-posix_memalign.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

129 lines
3.1 KiB
C

/* Test for posix_memalign.
Copyright (C) 2013-2019 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 <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <libc-diag.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;
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
/* GCC 7 warns about too-large allocations; here we want to test
that they fail. */
DIAG_IGNORE_NEEDS_COMMENT (7, "-Walloc-size-larger-than=");
#endif
/* An attempt to allocate a huge value should return ENOMEM and
p should remain NULL. */
ret = posix_memalign (&p, sizeof (void *), -1);
#if __GNUC_PREREQ (7, 0)
DIAG_POP_NEEDS_COMMENT;
#endif
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;
/* Test to expose integer overflow in malloc internals from BZ #16038. */
ret = posix_memalign (&p, -1, pagesize);
if (ret != EINVAL)
merror ("posix_memalign (&p, -1, 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"