/* pthread_getattr_np test.
Copyright (C) 2003-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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 <error.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stackinfo.h>
#include <libc-diag.h>
static void *
tf (void *arg)
{
pthread_attr_t a, *ap, a2;
int err;
void *result = NULL;
if (arg == NULL)
{
ap = &a2;
err = pthread_attr_init (ap);
if (err)
{
error (0, err, "pthread_attr_init failed");
return tf;
}
}
else
ap = (pthread_attr_t *) arg;
err = pthread_getattr_np (pthread_self (), &a);
if (err)
{
error (0, err, "pthread_getattr_np failed");
result = tf;
}
int detachstate1, detachstate2;
err = pthread_attr_getdetachstate (&a, &detachstate1);
if (err)
{
error (0, err, "pthread_attr_getdetachstate failed");
result = tf;
}
else
{
err = pthread_attr_getdetachstate (ap, &detachstate2);
if (err)
{
error (0, err, "pthread_attr_getdetachstate failed");
result = tf;
}
else if (detachstate1 != detachstate2)
{
error (0, 0, "detachstate differs %d != %d",
detachstate1, detachstate2);
result = tf;
}
}
void *stackaddr;
size_t stacksize;
err = pthread_attr_getstack (&a, &stackaddr, &stacksize);
if (err)
{
error (0, err, "pthread_attr_getstack failed");
result = tf;
}
else if ((void *) &a < stackaddr
|| (void *) &a >= stackaddr + stacksize)
{
error (0, 0, "pthread_attr_getstack returned range does not cover thread's stack");
result = tf;
}
else
printf ("thread stack %p-%p (0x%zx)\n", stackaddr, stackaddr + stacksize,
stacksize);
size_t guardsize1, guardsize2;
err = pthread_attr_getguardsize (&a, &guardsize1);
if (err)
{
error (0, err, "pthread_attr_getguardsize failed");
result = tf;
}
else
{
err = pthread_attr_getguardsize (ap, &guardsize2);
if (err)
{
error (0, err, "pthread_attr_getguardsize failed");
result = tf;
}
else if (guardsize1 != guardsize2)
{
error (0, 0, "guardsize differs %zd != %zd",
guardsize1, guardsize2);
result = tf;
}
else
printf ("thread guardsize %zd\n", guardsize1);
}
int scope1, scope2;
err = pthread_attr_getscope (&a, &scope1);
if (err)
{
error (0, err, "pthread_attr_getscope failed");
result = tf;
}
else
{
err = pthread_attr_getscope (ap, &scope2);
if (err)
{
error (0, err, "pthread_attr_getscope failed");
result = tf;
}
else if (scope1 != scope2)
{
error (0, 0, "scope differs %d != %d",
scope1, scope2);
result = tf;
}
}
int inheritsched1, inheritsched2;
err = pthread_attr_getinheritsched (&a, &inheritsched1);
if (err)
{
error (0, err, "pthread_attr_getinheritsched failed");
result = tf;
}
else
{
err = pthread_attr_getinheritsched (ap, &inheritsched2);
if (err)
{
error (0, err, "pthread_attr_getinheritsched failed");
result = tf;
}
else if (inheritsched1 != inheritsched2)
{
error (0, 0, "inheritsched differs %d != %d",
inheritsched1, inheritsched2);
result = tf;
}
}
cpu_set_t c1, c2;
err = pthread_getaffinity_np (pthread_self (), sizeof (c1), &c1);
if (err == 0)
{
err = pthread_attr_getaffinity_np (&a, sizeof (c2), &c2);
if (err)
{
error (0, err, "pthread_attr_getaffinity_np failed");
result = tf;
}
else if (memcmp (&c1, &c2, sizeof (c1)))
{
error (0, 0, "pthread_attr_getaffinity_np returned different CPU mask than pthread_getattr_np");
result = tf;
}
}
err = pthread_attr_destroy (&a);
if (err)
{
error (0, err, "pthread_attr_destroy failed");
result = tf;
}
if (ap == &a2)
{
err = pthread_attr_destroy (ap);
if (err)
{
error (0, err, "pthread_attr_destroy failed");
result = tf;
}
}
return result;
}
static int
do_test (void)
{
int result = 0;
pthread_attr_t a;
cpu_set_t c1, c2;
int err = pthread_attr_init (&a);
if (err)
{
error (0, err, "pthread_attr_init failed");
result = 1;
}
err = pthread_attr_getaffinity_np (&a, sizeof (c1), &c1);
if (err && err != ENOSYS)
{
error (0, err, "pthread_attr_getaffinity_np failed");
result = 1;
}
err = pthread_attr_destroy (&a);
if (err)
{
error (0, err, "pthread_attr_destroy failed");
result = 1;
}
err = pthread_getattr_np (pthread_self (), &a);
if (err)
{
error (0, err, "pthread_getattr_np failed");
result = 1;
}
int detachstate;
err = pthread_attr_getdetachstate (&a, &detachstate);
if (err)
{
error (0, err, "pthread_attr_getdetachstate failed");
result = 1;
}
else if (detachstate != PTHREAD_CREATE_JOINABLE)
{
error (0, 0, "initial thread not joinable");
result = 1;
}
void *stackaddr;
size_t stacksize;
err = pthread_attr_getstack (&a, &stackaddr, &stacksize);
if (err)
{
error (0, err, "pthread_attr_getstack failed");
result = 1;
}
else if ((void *) &a < stackaddr
|| (void *) &a >= stackaddr + stacksize)
{
error (0, 0, "pthread_attr_getstack returned range does not cover main's stack");
result = 1;
}
else
printf ("initial thread stack %p-%p (0x%zx)\n", stackaddr,
stackaddr + stacksize, stacksize);
size_t guardsize;
err = pthread_attr_getguardsize (&a, &guardsize);
if (err)
{
error (0, err, "pthread_attr_getguardsize failed");
result = 1;
}
else if (guardsize != 0)
{
error (0, 0, "pthread_attr_getguardsize returned %zd != 0",
guardsize);
result = 1;
}
int scope;
err = pthread_attr_getscope (&a, &scope);
if (err)
{
error (0, err, "pthread_attr_getscope failed");
result = 1;
}
else if (scope != PTHREAD_SCOPE_SYSTEM)
{
error (0, 0, "pthread_attr_getscope returned %d != PTHREAD_SCOPE_SYSTEM",
scope);
result = 1;
}
int inheritsched;
err = pthread_attr_getinheritsched (&a, &inheritsched);
if (err)
{
error (0, err, "pthread_attr_getinheritsched failed");
result = 1;
}
else if (inheritsched != PTHREAD_INHERIT_SCHED)
{
error (0, 0, "pthread_attr_getinheritsched returned %d != PTHREAD_INHERIT_SCHED",
inheritsched);
result = 1;
}
err = pthread_getaffinity_np (pthread_self (), sizeof (c1), &c1);
if (err == 0)
{
err = pthread_attr_getaffinity_np (&a, sizeof (c2), &c2);
if (err)
{
error (0, err, "pthread_attr_getaffinity_np failed");
result = 1;
}
else if (memcmp (&c1, &c2, sizeof (c1)))
{
error (0, 0, "pthread_attr_getaffinity_np returned different CPU mask than pthread_getattr_np");
result = 1;
}
}
err = pthread_attr_destroy (&a);
if (err)
{
error (0, err, "pthread_attr_destroy failed");
result = 1;
}
pthread_t th;
err = pthread_create (&th, NULL, tf, NULL);
if (err)
{
error (0, err, "pthread_create #1 failed");
result = 1;
}
else
{
void *ret;
err = pthread_join (th, &ret);
if (err)
{
error (0, err, "pthread_join #1 failed");
result = 1;
}
else if (ret != NULL)
result = 1;
}
err = pthread_attr_init (&a);
if (err)
{
error (0, err, "pthread_attr_init failed");
result = 1;
}
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
/* GCC 8 warns about aliasing of the restrict-qualified arguments
passed &a. Since pthread_create does not dereference its fourth
argument, this aliasing, which is deliberate in this test, cannot
in fact cause problems. */
DIAG_IGNORE_NEEDS_COMMENT (8, "-Wrestrict");
#endif
err = pthread_create (&th, &a, tf, &a);
DIAG_POP_NEEDS_COMMENT;
if (err)
{
error (0, err, "pthread_create #2 failed");
result = 1;
}
else
{
void *ret;
err = pthread_join (th, &ret);
if (err)
{
error (0, err, "pthread_join #2 failed");
result = 1;
}
else if (ret != NULL)
result = 1;
}
err = pthread_attr_setguardsize (&a, 16 * sysconf (_SC_PAGESIZE));
if (err)
{
error (0, err, "pthread_attr_setguardsize failed");
result = 1;
}
DIAG_PUSH_NEEDS_COMMENT;
#if __GNUC_PREREQ (7, 0)
/* GCC 8 warns about aliasing of the restrict-qualified arguments
passed &a. Since pthread_create does not dereference its fourth
argument, this aliasing, which is deliberate in this test, cannot
in fact cause problems. */
DIAG_IGNORE_NEEDS_COMMENT (8, "-Wrestrict");
#endif
err = pthread_create (&th, &a, tf, &a);
DIAG_POP_NEEDS_COMMENT;
if (err)
{
error (0, err, "pthread_create #3 failed");
result = 1;
}
else
{
void *ret;
err = pthread_join (th, &ret);
if (err)
{
error (0, err, "pthread_join #3 failed");
result = 1;
}
else if (ret != NULL)
result = 1;
}
err = pthread_attr_destroy (&a);
if (err)
{
error (0, err, "pthread_attr_destroy failed");
result = 1;
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"