pthread: Move spin tests from nptl to sysdeps/pthread

So they can be checked with htl too.

5 files changed, 376 insertions, 0 deletions

diff --git a/sysdeps/pthread/Makefile b/sysdeps/pthread/Makefile
index db4d573070..6b66031706 100644
--- a/sysdeps/pthread/Makefile
+++ b/sysdeps/pthread/Makefile
@@ -44,5 +44,6 @@ 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 \
 
 endif
diff --git a/sysdeps/pthread/tst-spin1.c b/sysdeps/pthread/tst-spin1.c
new file mode 100644
index 0000000000..3480f407c4
--- /dev/null
+++ b/sysdeps/pthread/tst-spin1.c
@@ -0,0 +1,56 @@
+/* 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>
+
+
+static int
+do_test (void)
+{
+  pthread_spinlock_t s;
+
+  if (pthread_spin_init (&s, PTHREAD_PROCESS_PRIVATE) != 0)
+    {
+      puts ("spin_init failed");
+      return 1;
+    }
+
+  if (pthread_spin_lock (&s) != 0)
+    {
+      puts ("spin_lock failed");
+      return 1;
+    }
+
+  if (pthread_spin_unlock (&s) != 0)
+    {
+      puts ("spin_unlock failed");
+      return 1;
+    }
+
+  if (pthread_spin_destroy (&s) != 0)
+    {
+      puts ("spin_destroy failed");
+      return 1;
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/pthread/tst-spin2.c b/sysdeps/pthread/tst-spin2.c
new file mode 100644
index 0000000000..135228a958
--- /dev/null
+++ b/sysdeps/pthread/tst-spin2.c
@@ -0,0 +1,158 @@
+/* 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-spin2.XXXXXX";
+  char data[ps];
+  void *mem;
+  int fd;
+  pthread_spinlock_t *s;
+  pid_t pid;
+  char *p;
+  int err;
+
+  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;
+    }
+
+  s = (pthread_spinlock_t *) (((uintptr_t) mem
+			       + __alignof (pthread_spinlock_t))
+			      & ~(__alignof (pthread_spinlock_t) - 1));
+  p = (char *) (s + 1);
+
+  if (pthread_spin_init (s, PTHREAD_PROCESS_SHARED) != 0)
+    {
+      puts ("spin_init failed");
+      return 1;
+    }
+
+  if (pthread_spin_lock (s) != 0)
+    {
+      puts ("spin_lock failed");
+      return 1;
+    }
+
+  err = pthread_spin_trylock (s);
+  if (err == 0)
+    {
+      puts ("1st spin_trylock succeeded");
+      return 1;
+    }
+  else if (err != EBUSY)
+    {
+      puts ("1st spin_trylock didn't return EBUSY");
+      return 1;
+    }
+
+  err = pthread_spin_unlock (s);
+  if (err != 0)
+    {
+      puts ("parent: spin_unlock failed");
+      return 1;
+    }
+
+  err = pthread_spin_trylock (s);
+  if (err != 0)
+    {
+      puts ("2nd spin_trylock failed");
+      return 1;
+    }
+
+  *p = 0;
+
+  puts ("going to fork now");
+  pid = fork ();
+  if (pid == -1)
+    {
+      puts ("fork failed");
+      return 1;
+    }
+  else if (pid == 0)
+    {
+      /* Play some lock ping-pong.  It's our turn to unlock first.  */
+      if ((*p)++ != 0)
+	{
+	  puts ("child: *p != 0");
+	  return 1;
+	}
+
+      if (pthread_spin_unlock (s) != 0)
+	{
+	  puts ("child: 1st spin_unlock failed");
+	  return 1;
+	}
+
+      puts ("child done");
+    }
+  else
+    {
+      if (pthread_spin_lock (s) != 0)
+	{
+	  puts ("parent: 2nd spin_lock failed");
+	  return 1;
+	}
+
+      puts ("waiting for child");
+
+      waitpid (pid, NULL, 0);
+
+      puts ("parent done");
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/pthread/tst-spin3.c b/sysdeps/pthread/tst-spin3.c
new file mode 100644
index 0000000000..d64dab4443
--- /dev/null
+++ b/sysdeps/pthread/tst-spin3.c
@@ -0,0 +1,53 @@
+/* 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>
+
+static int do_test (void);
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
+static int
+do_test (void)
+{
+  pthread_spinlock_t s;
+
+  if (pthread_spin_init (&s, PTHREAD_PROCESS_PRIVATE) != 0)
+    {
+      puts ("spin_init failed");
+      return 1;
+    }
+
+  if (pthread_spin_lock (&s) != 0)
+    {
+      puts ("1st spin_lock failed");
+      return 1;
+    }
+
+  delayed_exit (1);
+
+  /* This call should never return.  */
+  xpthread_spin_lock (&s);
+
+  puts ("2nd spin_lock returned");
+  return 1;
+}
diff --git a/sysdeps/pthread/tst-spin4.c b/sysdeps/pthread/tst-spin4.c
new file mode 100644
index 0000000000..99fe7aa6aa
--- /dev/null
+++ b/sysdeps/pthread/tst-spin4.c
@@ -0,0 +1,108 @@
+#include <pthread.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static int count = 0;
+
+static void *
+thread_add_one (void *arg)
+{
+  int tmp;
+  pthread_spinlock_t *lock = (pthread_spinlock_t *) arg;
+
+  /* When do_test holds the lock for 1 sec, the two thread will be
+     in contention for the lock. */
+  if (pthread_spin_lock (lock) != 0)
+    {
+      puts ("thread_add_one(): spin_lock failed");
+      pthread_exit ((void *) 1l);
+    }
+
+  /* sleep 1s before modifying count */
+  tmp = count;
+  sleep (1);
+  count = tmp + 1;
+
+  if (pthread_spin_unlock (lock) != 0)
+    {
+      puts ("thread_add_one(): spin_unlock failed");
+      pthread_exit ((void *) 1l);
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t thr1, thr2;
+  pthread_spinlock_t lock;
+  int tmp;
+
+  if (pthread_spin_init (&lock, PTHREAD_PROCESS_PRIVATE) != 0)
+    {
+      puts ("spin_init failed");
+      return 1;
+    }
+
+  if (pthread_spin_lock (&lock) != 0)
+    {
+      puts ("1st spin_lock failed");
+      return 1;
+    }
+
+  if (pthread_create (&thr1, NULL, thread_add_one, (void *) &lock) != 0)
+    {
+      puts ("1st pthread_create failed");
+      return 1;
+    }
+
+  if (pthread_create (&thr2, NULL, thread_add_one, (void *) &lock) != 0)
+    {
+      puts ("2nd pthread_create failed");
+      return 1;
+    }
+
+  /* sleep 1s before modifying count */
+  tmp = count;
+  sleep (1);
+  count = tmp + 1;
+
+  if (pthread_spin_unlock (&lock) != 0)
+    {
+      puts ("1st spin_unlock failed");
+      return 1;
+    }
+
+  void *status;
+  if (pthread_join (thr1, &status) != 0)
+    {
+      puts ("1st pthread_join failed");
+      return 1;
+    }
+  if (status != NULL)
+    {
+      puts ("failure in the 1st thread");
+      return 1;
+    }
+  if (pthread_join (thr2, &status) != 0)
+    {
+      puts ("2nd pthread_join failed");
+      return 1;
+    }
+  if (status != NULL)
+    {
+      puts ("failure in the 2nd thread");
+      return 1;
+    }
+
+  if (count != 3)
+    {
+      printf ("count is %d, should be 3\n", count);
+      return 1;
+    }
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"