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/* Verify that pthreads uses the default thread stack size set with the
GLIBC_PTHREAD_DEFAULT_STACKSIZE environment variable.
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 <pthread.h>
#include <stdio.h>
#include <string.h>
/* It is possible that the default stack size somehow ends up being 1MB, thus
giving a false positive. The ideal way to test this would be to get the
current stacksize fork a process with the default stack size set to
something different to the current stack size and verify in the child
process that the environment variable worked. */
#define STACKSIZE 1024 * 1024L
void *
thr (void *u)
{
size_t stacksize, guardsize;
pthread_attr_t attr;
pthread_getattr_np (pthread_self (), &attr);
pthread_attr_getstacksize (&attr, &stacksize);
pthread_attr_getguardsize (&attr, &guardsize);
/* FIXME once guardsize is excluded from stacksize. */
if (stacksize - guardsize != STACKSIZE)
{
printf ("Stack size is %zu, should be %zu\n", stacksize - guardsize,
STACKSIZE);
return (void *) 1;
}
return NULL;
}
int
do_test (int argc, char **argv)
{
pthread_t t;
void *thr_ret;
int ret;
if ((ret = pthread_create (&t, NULL, thr, NULL)) != 0)
{
printf ("thread create failed: %s\n", strerror (ret));
return 1;
}
if ((ret = pthread_join (t, &thr_ret)) != 0)
{
printf ("join failed: %s\n", strerror (ret));
return 1;
}
if (thr_ret != NULL && thr_ret != PTHREAD_CANCELED)
return 1;
return 0;
}
#include "../test-skeleton.c"
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