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glibc/malloc/tst-mcheck.c

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* elf/dl-close.c: Include stddef.h. (_dl_close): If called recursively, just remember GC needs to be rerun and decrease l_direct_opencount. Avoid GC if l_direct_opencount decreased to 1. Rerun GC at the end if any destructor unloaded some additional libraries. * elf/Makefile: Add rules to build and run unload6 test. * elf/unload6.c: New test. * elf/unload6mod1.c: New file. * elf/unload6mod2.c: New file. * elf/unload6mod3.c: New file. * malloc/hooks.c (mem2chunk_check): Add magic_p argument, set *magic_p if magic_p is not NULL. (top_check): Invoke MALLOC_FAILURE_ACTION if MORECORE failed. (malloc_check): Fail if sz == -1. (free_check): Adjust mem2chunk_check caller. (realloc_check): Likewise. Fail if bytes == -1. If bytes == 0 and oldmem != NULL, call free_check and return NULL. If reallocating and returning NULL, invert magic byte again to make oldmem valid region for further checking. (memalign_check): Fail if bytes == -1. * malloc/Makefile: Add rules to build and run tst-mcheck. * malloc/tst-mcheck.c: New test.
2005-04-27 03:39:11 +02:00
/* Copyright (C) 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2005.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
static int errors = 0;
static void
merror (const char *msg)
{
++errors;
printf ("Error: %s\n", msg);
}
int
main (void)
{
void *p, *q;
errno = 0;
p = malloc (-1);
if (p != NULL)
merror ("malloc (-1) succeeded.");
else if (errno != ENOMEM)
merror ("errno is not set correctly.");
p = malloc (10);
if (p == NULL)
merror ("malloc (10) failed.");
p = realloc (p, 0);
if (p != NULL)
merror ("realloc (p, 0) failed.");
p = malloc (0);
if (p == NULL)
merror ("malloc (0) failed.");
p = realloc (p, 0);
if (p != NULL)
merror ("realloc (p, 0) failed.");
q = malloc (256);
if (q == NULL)
merror ("malloc (256) failed.");
p = malloc (512);
if (p == NULL)
merror ("malloc (512) failed.");
if (realloc (p, -256) != NULL)
merror ("realloc (p, -256) succeeded.");
else if (errno != ENOMEM)
merror ("errno is not set correctly.");
free (p);
p = malloc (512);
if (p == NULL)
merror ("malloc (512) failed.");
if (realloc (p, -1) != NULL)
merror ("realloc (p, -1) succeeded.");
else if (errno != ENOMEM)
merror ("errno is not set correctly.");
free (p);
free (q);
return errors != 0;
}