lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-08-01 10:06:57 +03:00
Code Activity

pthread: Move most mutex tests from nptl to sysdeps/pthread

Browse Source 
So they can be checked with htl too.

XFAIL tst-mutex4, for which support is still missing in htl.
This commit is contained in:
Samuel Thibault
2020-02-09 17:15:47 +00:00
parent 71d52ac4d6
commit 74159dc58a
10 changed files with 8 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
sysdeps/pthread/Makefile
View File

@ -44,6 +44,7 @@ tests += tst-cnd-basic tst-mtx-trylock tst-cnd-broadcast \
tst-mtx-recursive tst-tss-basic tst-call-once tst-mtx-timedlock \
tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \
tst-basic7 \
tst-spin1 tst-spin2 tst-spin3 tst-spin4 \
tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex6 tst-mutex10 \
tst-spin1 tst-spin2 tst-spin3 tst-spin4
endif

83
sysdeps/pthread/tst-mutex1.c Normal file
View File

@ -0,0 +1,83 @@
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <pthread.h>
#include <stdio.h>
#include <errno.h>
#include <stdbool.h>
#include <libc-diag.h>
#ifndef ATTR
# define ATTR NULL
# define ATTR_NULL true
#endif
static int
do_test (void)
{
pthread_mutex_t m;
int e = pthread_mutex_init (&m, ATTR);
if (!ATTR_NULL && e == ENOTSUP)
{
puts ("cannot support selected type of mutexes");
return 0;
}
else if (e != 0)
{
puts ("mutex_init failed");
return 1;
}
/* This deliberately tests supplying a null pointer to a function whose
argument is marked __attribute__ ((nonnull)). */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT (5, "-Wnonnull");
if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
DIAG_POP_NEEDS_COMMENT;
if (pthread_mutex_lock (&m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
return 0;
}
#ifndef TEST_FUNCTION
# define TEST_FUNCTION do_test ()
#endif
#include "../test-skeleton.c"

109
sysdeps/pthread/tst-mutex10.c Normal file
View File

@ -0,0 +1,109 @@
/* Testing race while enabling lock elision.
Copyright (C) 2018-2020 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 <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <pthread.h>
#include <unistd.h>
#include <getopt.h>
#include <support/support.h>
#include <support/xthread.h>
static pthread_barrier_t barrier;
static pthread_mutex_t mutex;
static long long int iteration_count = 1000000;
static unsigned int thread_count = 3;
static void *
thr_func (void *arg)
{
long long int i;
for (i = 0; i < iteration_count; i++)
{
if ((uintptr_t) arg == 0)
{
xpthread_mutex_destroy (&mutex);
xpthread_mutex_init (&mutex, NULL);
}
xpthread_barrier_wait (&barrier);
/* Test if enabling lock elision works if it is enabled concurrently.
There was a race in FORCE_ELISION macro which leads to either
pthread_mutex_destroy returning EBUSY as the owner was recorded
by pthread_mutex_lock - in "normal mutex" code path - but was not
resetted in pthread_mutex_unlock - in "elision" code path.
Or it leads to the assertion in nptl/pthread_mutex_lock.c:
assert (mutex->__data.__owner == 0);
Please ensure that the test is run with lock elision:
export GLIBC_TUNABLES=glibc.elision.enable=1 */
xpthread_mutex_lock (&mutex);
xpthread_mutex_unlock (&mutex);
xpthread_barrier_wait (&barrier);
}
return NULL;
}
static int
do_test (void)
{
unsigned int i;
printf ("Starting %d threads to run %lld iterations.\n",
thread_count, iteration_count);
pthread_t *threads = xmalloc (thread_count * sizeof (pthread_t));
xpthread_barrier_init (&barrier, NULL, thread_count);
xpthread_mutex_init (&mutex, NULL);
for (i = 0; i < thread_count; i++)
threads[i] = xpthread_create (NULL, thr_func, (void *) (uintptr_t) i);
for (i = 0; i < thread_count; i++)
xpthread_join (threads[i]);
xpthread_barrier_destroy (&barrier);
free (threads);
return EXIT_SUCCESS;
}
#define OPT_ITERATIONS 10000
#define OPT_THREADS 10001
#define CMDLINE_OPTIONS \
{ "iterations", required_argument, NULL, OPT_ITERATIONS }, \
{ "threads", required_argument, NULL, OPT_THREADS },
static void
cmdline_process (int c)
{
long long int arg = strtoll (optarg, NULL, 0);
switch (c)
{
case OPT_ITERATIONS:
if (arg > 0)
iteration_count = arg;
break;
case OPT_THREADS:
if (arg > 0 && arg < 100)
thread_count = arg;
break;
}
}
#define CMDLINE_PROCESS cmdline_process
#define TIMEOUT 50
#include <support/test-driver.c>

241
sysdeps/pthread/tst-mutex2.c Normal file
View File

@ -0,0 +1,241 @@
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <pthread.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_mutex_t m;
static pthread_barrier_t b;
static void *
tf (void *arg)
{
int e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("child: 1st mutex_unlock succeeded");
exit (1);
}
else if (e != EPERM)
{
puts ("child: 1st mutex_unlock error != EPERM");
exit (1);
}
e = pthread_mutex_trylock (&m);
if (e == 0)
{
puts ("child: 1st trylock suceeded");
exit (1);
}
if (e != EBUSY)
{
puts ("child: 1st trylock didn't return EBUSY");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: 1st barrier_wait failed");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: 2nd barrier_wait failed");
exit (1);
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("child: 2nd mutex_unlock succeeded");
exit (1);
}
else if (e != EPERM)
{
puts ("child: 2nd mutex_unlock error != EPERM");
exit (1);
}
if (pthread_mutex_trylock (&m) != 0)
{
puts ("child: 2nd trylock failed");
exit (1);
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("child: 3rd mutex_unlock failed");
exit (1);
}
return NULL;
}
static int
do_test (void)
{
pthread_mutexattr_t a;
int e;
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0)
{
puts ("mutexattr_settype failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
e = pthread_mutex_init (&m, &a);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("1st mutex_unlock succeeded");
return 1;
}
else if (e != EPERM)
{
puts ("1st mutex_unlock error != EPERM");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
e = pthread_mutex_lock (&m);
if (e == 0)
{
puts ("2nd mutex_lock succeeded");
return 1;
}
else if (e != EDEADLK)
{
puts ("2nd mutex_lock error != EDEADLK");
return 1;
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("create failed");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("1st barrier_wait failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("2nd mutex_unlock failed");
return 1;
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("3rd mutex_unlock succeeded");
return 1;
}
else if (e != EPERM)
{
puts ("3rd mutex_unlock error != EPERM");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("2nd barrier_wait failed");
return 1;
}
if (pthread_join (th, NULL) != 0)
{
puts ("join failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
if (pthread_barrier_destroy (&b) != 0)
{
puts ("barrier_destroy failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

241
sysdeps/pthread/tst-mutex3.c Normal file
View File

@ -0,0 +1,241 @@
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <pthread.h>
#include <stdio.h>
#include <stdlib.h>
static pthread_mutex_t m;
static pthread_barrier_t b;
static void *
tf (void *arg)
{
int e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("1st mutex_unlock in child succeeded");
exit (1);
}
if (e != EPERM)
{
puts ("1st mutex_unlock in child didn't return EPERM");
exit (1);
}
e = pthread_mutex_trylock (&m);
if (e == 0)
{
puts ("mutex_trylock in second thread succeeded");
exit (1);
}
if (e != EBUSY)
{
puts ("mutex_trylock returned wrong value");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("barrier_wait failed");
exit (1);
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("barrier_wait failed");
exit (1);
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("2nd mutex_unlock in child succeeded");
exit (1);
}
if (e != EPERM)
{
puts ("2nd mutex_unlock in child didn't return EPERM");
exit (1);
}
if (pthread_mutex_trylock (&m) != 0)
{
puts ("2nd mutex_trylock in second thread failed");
exit (1);
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("3rd mutex_unlock in second thread failed");
exit (1);
}
return NULL;
}
static int
do_test (void)
{
pthread_mutexattr_t a;
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_RECURSIVE) != 0)
{
puts ("mutexattr_settype failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
int e;
e = pthread_mutex_init (&m, &a);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("2nd mutex_lock failed");
return 1;
}
if (pthread_mutex_trylock (&m) != 0)
{
puts ("1st trylock failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("mutex_unlock failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("2nd mutex_unlock failed");
return 1;
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("create failed");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("barrier_wait failed");
return 1;
}
if (pthread_mutex_unlock (&m) != 0)
{
puts ("3rd mutex_unlock failed");
return 1;
}
e = pthread_mutex_unlock (&m);
if (e == 0)
{
puts ("4th mutex_unlock succeeded");
return 1;
}
if (e != EPERM)
{
puts ("4th mutex_unlock didn't return EPERM");
return 1;
}
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("barrier_wait failed");
return 1;
}
if (pthread_join (th, NULL) != 0)
{
puts ("join failed");
return 1;
}
if (pthread_barrier_destroy (&b) != 0)
{
puts ("barrier_destroy failed");
return 1;
}
if (pthread_mutex_destroy (&m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

276
sysdeps/pthread/tst-mutex4.c Normal file
View File

@ -0,0 +1,276 @@
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <pthread.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/wait.h>
static int
do_test (void)
{
size_t ps = sysconf (_SC_PAGESIZE);
char tmpfname[] = "/tmp/tst-mutex4.XXXXXX";
char data[ps];
void *mem;
int fd;
pthread_mutex_t *m;
pthread_mutexattr_t a;
pid_t pid;
char *p;
int err;
int s;
pthread_barrier_t *b;
pthread_barrierattr_t ba;
fd = mkstemp (tmpfname);
if (fd == -1)
{
printf ("cannot open temporary file: %m\n");
return 1;
}
/* Make sure it is always removed. */
unlink (tmpfname);
/* Create one page of data. */
memset (data, '\0', ps);
/* Write the data to the file. */
if (write (fd, data, ps) != (ssize_t) ps)
{
puts ("short write");
return 1;
}
mem = mmap (NULL, ps, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (mem == MAP_FAILED)
{
printf ("mmap failed: %m\n");
return 1;
}
m = (pthread_mutex_t *) (((uintptr_t) mem + __alignof (pthread_mutex_t) - 1)
& ~(__alignof (pthread_mutex_t) - 1));
b = (pthread_barrier_t *) (((uintptr_t) (m + 1)
+ __alignof (pthread_barrier_t) - 1)
& ~(__alignof (pthread_barrier_t) - 1));
p = (char *) (b + 1);
if (pthread_mutexattr_init (&a) != 0)
{
puts ("mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_getpshared (&a, &s) != 0)
{
puts ("1st mutexattr_getpshared failed");
return 1;
}
if (s != PTHREAD_PROCESS_PRIVATE)
{
puts ("default pshared value wrong");
return 1;
}
if (pthread_mutexattr_setpshared (&a, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("mutexattr_setpshared failed");
return 1;
}
if (pthread_mutexattr_getpshared (&a, &s) != 0)
{
puts ("2nd mutexattr_getpshared failed");
return 1;
}
if (s != PTHREAD_PROCESS_SHARED)
{
puts ("pshared value after setpshared call wrong");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&a, PTHREAD_PRIO_INHERIT) != 0)
{
puts ("pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
if ((err = pthread_mutex_init (m, &a)) != 0)
{
#ifdef ENABLE_PI
if (err == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
puts ("mutex_init failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
puts ("mutex_lock failed");
return 1;
}
if (pthread_mutexattr_destroy (&a) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_barrierattr_init (&ba) != 0)
{
puts ("barrierattr_init failed");
return 1;
}
if (pthread_barrierattr_setpshared (&ba, PTHREAD_PROCESS_SHARED) != 0)
{
puts ("barrierattr_setpshared failed");
return 1;
}
if (pthread_barrier_init (b, &ba, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_barrierattr_destroy (&ba) != 0)
{
puts ("barrierattr_destroy failed");
return 1;
}
err = pthread_mutex_trylock (m);
if (err == 0)
{
puts ("mutex_trylock succeeded");
return 1;
}
else if (err != EBUSY)
{
puts ("mutex_trylock didn't return EBUSY");
return 1;
}
*p = 0;
if (pthread_mutex_unlock (m) != 0)
{
puts ("parent: 1st mutex_unlock failed");
return 1;
}
puts ("going to fork now");
pid = fork ();
if (pid == -1)
{
puts ("fork failed");
return 1;
}
else if (pid == 0)
{
if (pthread_mutex_lock (m) != 0)
{
puts ("child: mutex_lock failed");
return 1;
}
int e = pthread_barrier_wait (b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("child: barrier_wait failed");
return 1;
}
if ((*p)++ != 0)
{
puts ("child: *p != 0");
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
puts ("child: mutex_unlock failed");
return 1;
}
puts ("child done");
}
else
{
int e = pthread_barrier_wait (b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("parent: barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
puts ("parent: 2nd mutex_lock failed");
return 1;
}
if (*p != 1)
{
puts ("*p != 1");
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
puts ("parent: 2nd mutex_unlock failed");
return 1;
}
if (pthread_mutex_destroy (m) != 0)
{
puts ("mutex_destroy failed");
return 1;
}
if (pthread_barrier_destroy (b) != 0)
{
puts ("barrier_destroy failed");
return 1;
}
puts ("parent done");
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

76
sysdeps/pthread/tst-mutex6.c Normal file
View File

@ -0,0 +1,76 @@
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <stdbool.h>
#ifndef TEST_FUNCTION
static int do_test (void);
# define TEST_FUNCTION do_test ()
#endif
#include "../test-skeleton.c"
#ifndef ATTR
pthread_mutexattr_t *attr;
# define ATTR attr
#endif
#ifndef ATTR_NULL
# define ATTR_NULL (ATTR == NULL)
#endif
static int
do_test (void)
{
pthread_mutex_t m;
int e = pthread_mutex_init (&m, ATTR);
if (!ATTR_NULL && e == ENOTSUP)
{
puts ("cannot support selected type of mutexes");
e = pthread_mutex_init (&m, NULL);
}
if (e != 0)
{
puts ("mutex_init failed");
return 1;
}
if (!ATTR_NULL && pthread_mutexattr_destroy (ATTR) != 0)
{
puts ("mutexattr_destroy failed");
return 1;
}
if (pthread_mutex_lock (&m) != 0)
{
puts ("1st mutex_lock failed");
return 1;
}
delayed_exit (1);
/* This call should never return. */
xpthread_mutex_lock (&m);
puts ("2nd mutex_lock returned");
return 1;
}

435
sysdeps/pthread/tst-mutex8.c Normal file
View File

@ -0,0 +1,435 @@
/* Copyright (C) 2003-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@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
<https://www.gnu.org/licenses/>. */
/* This test checks behavior not required by POSIX. */
#include <errno.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <elf/dl-tunables.h>
static pthread_mutex_t *m;
static pthread_barrier_t b;
static pthread_cond_t c;
static bool done;
static void
cl (void *arg)
{
if (pthread_mutex_unlock (m) != 0)
{
puts ("cl: mutex_unlocked failed");
exit (1);
}
}
static void *
tf (void *arg)
{
if (pthread_mutex_lock (m) != 0)
{
puts ("tf: mutex_lock failed");
return (void *) 1l;
}
int e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("barrier_wait failed");
return (void *) 1l;
}
if (arg == NULL)
do
if (pthread_cond_wait (&c, m) != 0)
{
puts ("tf: cond_wait failed");
return (void *) 1l;
}
while (! done);
else
do
{
pthread_cleanup_push (cl, NULL);
if (pthread_cond_wait (&c, m) != 0)
{
puts ("tf: cond_wait failed");
return (void *) 1l;
}
pthread_cleanup_pop (0);
}
while (! done);
if (pthread_mutex_unlock (m) != 0)
{
puts ("tf: mutex_unlock failed");
return (void *) 1l;
}
return NULL;
}
static int
check_type (const char *mas, pthread_mutexattr_t *ma)
{
int e;
/* Check if a mutex will be elided. Lock elision can only be activated via
the tunables framework. By default, lock elision is disabled. */
bool assume_elided_mutex = false;
#if HAVE_TUNABLES
int ma_type = PTHREAD_MUTEX_TIMED_NP;
if (ma != NULL)
{
e = pthread_mutexattr_gettype (ma, &ma_type);
if (e != 0)
{
printf ("pthread_mutexattr_gettype failed with %d (%m)\n", e);
return 1;
}
}
if (ma_type == PTHREAD_MUTEX_TIMED_NP)
{
/* This type of mutex can be elided if elision is enabled via the tunables
framework. Some tests below are failing if the mutex is elided.
Thus we only run those if we assume that the mutex won't be elided. */
if (TUNABLE_GET_FULL (glibc, elision, enable, int32_t, NULL) == 1)
assume_elided_mutex = true;
}
#endif
e = pthread_mutex_init (m, ma);
if (e != 0)
{
#ifdef ENABLE_PI
if (e == ENOTSUP)
{
puts ("PI mutexes unsupported");
return 0;
}
#endif
printf ("1st mutex_init failed for %s\n", mas);
return 1;
}
if (pthread_mutex_destroy (m) != 0)
{
printf ("immediate mutex_destroy failed for %s\n", mas);
return 1;
}
if (pthread_mutex_init (m, ma) != 0)
{
printf ("2nd mutex_init failed for %s\n", mas);
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
printf ("1st mutex_lock failed for %s\n", mas);
return 1;
}
/* Elided mutexes don't fail destroy, thus only test this if we don't assume
elision. */
if (assume_elided_mutex == false)
{
e = pthread_mutex_destroy (m);
if (e == 0)
{
printf ("mutex_destroy of self-locked mutex succeeded for %s\n", mas);
return 1;
}
if (e != EBUSY)
{
printf ("\
mutex_destroy of self-locked mutex did not return EBUSY %s\n",
mas);
return 1;
}
}
if (pthread_mutex_unlock (m) != 0)
{
printf ("1st mutex_unlock failed for %s\n", mas);
return 1;
}
if (pthread_mutex_trylock (m) != 0)
{
printf ("mutex_trylock failed for %s\n", mas);
return 1;
}
/* Elided mutexes don't fail destroy. */
if (assume_elided_mutex == false)
{
e = pthread_mutex_destroy (m);
if (e == 0)
{
printf ("mutex_destroy of self-trylocked mutex succeeded for %s\n",
mas);
return 1;
}
if (e != EBUSY)
{
printf ("\
mutex_destroy of self-trylocked mutex did not return EBUSY %s\n",
mas);
return 1;
}
}
if (pthread_mutex_unlock (m) != 0)
{
printf ("2nd mutex_unlock failed for %s\n", mas);
return 1;
}
pthread_t th;
if (pthread_create (&th, NULL, tf, NULL) != 0)
{
puts ("1st create failed");
return 1;
}
done = false;
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("1st barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
printf ("2nd mutex_lock failed for %s\n", mas);
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
printf ("3rd mutex_unlock failed for %s\n", mas);
return 1;
}
/* Elided mutexes don't fail destroy. */
if (assume_elided_mutex == false)
{
e = pthread_mutex_destroy (m);
if (e == 0)
{
printf ("mutex_destroy of condvar-used mutex succeeded for %s\n",
mas);
return 1;
}
if (e != EBUSY)
{
printf ("\
mutex_destroy of condvar-used mutex did not return EBUSY for %s\n", mas);
return 1;
}
}
done = true;
if (pthread_cond_signal (&c) != 0)
{
puts ("cond_signal failed");
return 1;
}
void *r;
if (pthread_join (th, &r) != 0)
{
puts ("join failed");
return 1;
}
if (r != NULL)
{
puts ("thread didn't return NULL");
return 1;
}
if (pthread_mutex_destroy (m) != 0)
{
printf ("mutex_destroy after condvar-use failed for %s\n", mas);
return 1;
}
if (pthread_mutex_init (m, ma) != 0)
{
printf ("3rd mutex_init failed for %s\n", mas);
return 1;
}
if (pthread_create (&th, NULL, tf, (void *) 1) != 0)
{
puts ("2nd create failed");
return 1;
}
done = false;
e = pthread_barrier_wait (&b);
if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
{
puts ("2nd barrier_wait failed");
return 1;
}
if (pthread_mutex_lock (m) != 0)
{
printf ("3rd mutex_lock failed for %s\n", mas);
return 1;
}
if (pthread_mutex_unlock (m) != 0)
{
printf ("4th mutex_unlock failed for %s\n", mas);
return 1;
}
/* Elided mutexes don't fail destroy. */
if (assume_elided_mutex == false)
{
e = pthread_mutex_destroy (m);
if (e == 0)
{
printf ("2nd mutex_destroy of condvar-used mutex succeeded for %s\n",
mas);
return 1;
}
if (e != EBUSY)
{
printf ("\
2nd mutex_destroy of condvar-used mutex did not return EBUSY for %s\n",
mas);
return 1;
}
}
if (pthread_cancel (th) != 0)
{
puts ("cond_cancel failed");
return 1;
}
if (pthread_join (th, &r) != 0)
{
puts ("join failed");
return 1;
}
if (r != PTHREAD_CANCELED)
{
puts ("thread not canceled");
return 1;
}
if (pthread_mutex_destroy (m) != 0)
{
printf ("mutex_destroy after condvar-canceled failed for %s\n", mas);
return 1;
}
return 0;
}
static int
do_test (void)
{
pthread_mutex_t mm;
m = &mm;
if (pthread_barrier_init (&b, NULL, 2) != 0)
{
puts ("barrier_init failed");
return 1;
}
if (pthread_cond_init (&c, NULL) != 0)
{
puts ("cond_init failed");
return 1;
}
puts ("check normal mutex");
int res = check_type ("normal", NULL);
pthread_mutexattr_t ma;
if (pthread_mutexattr_init (&ma) != 0)
{
puts ("1st mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_RECURSIVE) != 0)
{
puts ("1st mutexattr_settype failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&ma, PTHREAD_PRIO_INHERIT))
{
puts ("1st pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
puts ("check recursive mutex");
res |= check_type ("recursive", &ma);
if (pthread_mutexattr_destroy (&ma) != 0)
{
puts ("1st mutexattr_destroy failed");
return 1;
}
if (pthread_mutexattr_init (&ma) != 0)
{
puts ("2nd mutexattr_init failed");
return 1;
}
if (pthread_mutexattr_settype (&ma, PTHREAD_MUTEX_ERRORCHECK) != 0)
{
puts ("2nd mutexattr_settype failed");
return 1;
}
#ifdef ENABLE_PI
if (pthread_mutexattr_setprotocol (&ma, PTHREAD_PRIO_INHERIT))
{
puts ("2nd pthread_mutexattr_setprotocol failed");
return 1;
}
#endif
puts ("check error-checking mutex");
res |= check_type ("error-checking", &ma);
if (pthread_mutexattr_destroy (&ma) != 0)
{
puts ("2nd mutexattr_destroy failed");
return 1;
}
return res;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"