* 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, 59 insertions, 0 deletions

diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
new file mode 100644
index 0000000000..429494e257
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc32/sem_trywait.c
@@ -0,0 +1,59 @@
+/* sem_trywait -- wait on a semaphore.  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 <internaltypes.h>
+#include <semaphore.h>
+
+#include <shlib-compat.h>
+
+
+int
+__new_sem_trywait (sem_t *sem)
+{
+  int *futex = (int *) sem;
+  int val;
+
+  if (*futex > 0)
+    {
+      if (__atomic_is_v9)
+	val = atomic_decrement_if_positive (futex);
+      else
+	{
+	  __sparc32_atomic_do_lock24 (futex + 1);
+	  val = *futex;
+	  if (val > 0)
+	    *futex = val - 1;
+	  __sparc32_atomic_do_unlock24 (futex + 1);
+	}
+      if (val > 0)
+	return 0;
+    }
+
+  __set_errno (EAGAIN);
+  return -1;
+}
+versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1);
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_trywait, __old_sem_trywait)
+compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0);
+#endif