* sysdeps/unix/sysv/linux/m68k/fchownat.c: Include string.h.

	* sysdeps/sparc/sparc32/dl-machine.h (LD_SO_PRELOAD): Remove unused
	define.

	* sysdeps/sparc/sparc32/bits/atomic.h: Include stdint.h, add
	{,u}atomic*_t typedefs.
	(__sparc32_atomic_do_lock): Add __volatile and memory clobber.
	(__sparc32_atomic_do_unlock): Add memory barrier.
	(__sparc32_atomic_do_lock24, __sparc32_atomic_do_unlock24): Define.
	[!SHARED] (__v9_compare_and_exchange_val_32_acq): Define.
	(__v7_compare_and_exchange_val_acq, __v7_compare_and_exchange_bool_acq,
	__v7_exchange_acq, __v7_exchange_and_add, __v7_exchange_24_rel,
	__v7_compare_and_exchange_val_24_acq, __atomic_is_v9,
	atomic_exchange_acq, atomic_compare_and_exchange_val_24_acq,
	atomic_exchange_24_rel): Define.
	[SHARED] (atomic_exchange_and_add): Define.
	[!SHARED] (__ATOMIC_HWCAP_SPARC_V9): Define.
	[!SHARED] (_dl_hwcap): New weak decl.
	* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h (atomic_exchange_24_rel,
	atomic_compare_and_exchange_val_24_acq): Define.
	* sysdeps/sparc/sparc64/bits/atomic.h (atomic_exchange_24_rel,
	atomic_compare_and_exchange_val_24_acq): Define.

1 files changed, 131 insertions, 0 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
new file mode 100644
index 0000000000..a7611d6a88
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
@@ -0,0 +1,131 @@
+/* low level locking for pthread library.  SPARC version.
+   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Mackerras <paulus@au.ibm.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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <sys/time.h>
+
+
+void
+__lll_lock_wait (int *futex)
+{
+  do
+    {
+      int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1);
+      if (oldval != 0)
+	lll_futex_wait (futex, 2);
+    }
+  while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0);
+}
+
+
+int
+__lll_timedlock_wait (int *futex, const struct timespec *abstime)
+{
+  /* Reject invalid timeouts.  */
+  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
+    return EINVAL;
+
+  do
+    {
+      struct timeval tv;
+      struct timespec rt;
+
+      /* Get the current time.  */
+      (void) __gettimeofday (&tv, NULL);
+
+      /* Compute relative timeout.  */
+      rt.tv_sec = abstime->tv_sec - tv.tv_sec;
+      rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+      if (rt.tv_nsec < 0)
+	{
+	  rt.tv_nsec += 1000000000;
+	  --rt.tv_sec;
+	}
+
+      /* Already timed out?  */
+      if (rt.tv_sec < 0)
+	return ETIMEDOUT;
+
+      /* Wait.  */
+      int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1);
+      if (oldval != 0)
+	lll_futex_timed_wait (futex, 2, &rt);
+    }
+  while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0);
+
+  return 0;
+}
+
+
+/* These don't get included in libc.so  */
+#ifdef IS_IN_libpthread
+int
+lll_unlock_wake_cb (int *futex)
+{
+  int val = atomic_exchange_24_rel (futex, 0);
+
+  if (__builtin_expect (val > 1, 0))
+    lll_futex_wake (futex, 1);
+
+  return 0;
+}
+
+
+int
+__lll_timedwait_tid (int *tidp, const struct timespec *abstime)
+{
+  int tid;
+
+  if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)
+    return EINVAL;
+
+  /* Repeat until thread terminated.  */
+  while ((tid = *tidp) != 0)
+    {
+      struct timeval tv;
+      struct timespec rt;
+
+      /* Get the current time.  */
+      (void) __gettimeofday (&tv, NULL);
+
+      /* Compute relative timeout.  */
+      rt.tv_sec = abstime->tv_sec - tv.tv_sec;
+      rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+      if (rt.tv_nsec < 0)
+	{
+	  rt.tv_nsec += 1000000000;
+	  --rt.tv_sec;
+	}
+
+      /* Already timed out?  */
+      if (rt.tv_sec < 0)
+	return ETIMEDOUT;
+
+      /* Wait until thread terminates.  */
+      if (lll_futex_timed_wait (tidp, tid, &rt) == -ETIMEDOUT)
+	return ETIMEDOUT;
+    }
+
+  return 0;
+}
+
+#endif