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Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/elision-lock.c')
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/elision-lock.c86
1 files changed, 0 insertions, 86 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c b/sysdeps/unix/sysv/linux/powerpc/elision-lock.c
deleted file mode 100644
index f7a5cbcd3a..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* elision-lock.c: Elided pthread mutex lock.
-   Copyright (C) 2015-2017 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
-   <http://www.gnu.org/licenses/>.  */
-
-#include <stdio.h>
-#include <pthread.h>
-#include <pthreadP.h>
-#include <lowlevellock.h>
-#include <elision-conf.h>
-#include "htm.h"
-
-#if !defined(LLL_LOCK) && !defined(EXTRAARG)
-/* Make sure the configuration code is always linked in for static
-   libraries.  */
-#include "elision-conf.c"
-#endif
-
-#ifndef EXTRAARG
-# define EXTRAARG
-#endif
-#ifndef LLL_LOCK
-# define LLL_LOCK(a,b) lll_lock(a,b), 0
-#endif
-
-#define aconf __elision_aconf
-
-/* Adaptive lock using transactions.
-   By default the lock region is run as a transaction, and when it
-   aborts or the lock is busy the lock adapts itself.  */
-
-int
-__lll_lock_elision (int *lock, short *adapt_count, EXTRAARG int pshared)
-{
-  /* adapt_count is accessed concurrently but is just a hint.  Thus,
-     use atomic accesses but relaxed MO is sufficient.  */
-  if (atomic_load_relaxed (adapt_count) > 0)
-    {
-      goto use_lock;
-    }
-
-  for (int i = aconf.try_tbegin; i > 0; i--)
-    {
-      if (__libc_tbegin (0))
-	{
-	  if (*lock == 0)
-	    return 0;
-	  /* Lock was busy.  Fall back to normal locking.  */
-	  __libc_tabort (_ABORT_LOCK_BUSY);
-	}
-      else
-	{
-	  /* A persistent failure indicates that a retry will probably
-	     result in another failure.  Use normal locking now and
-	     for the next couple of calls.  */
-	  if (_TEXASRU_FAILURE_PERSISTENT (__builtin_get_texasru ()))
-	    {
-	      if (aconf.skip_lock_internal_abort > 0)
-		atomic_store_relaxed (adapt_count,
-				      aconf.skip_lock_internal_abort);
-	      goto use_lock;
-	    }
-	}
-     }
-
-  /* Fall back to locks for a bit if retries have been exhausted */
-  if (aconf.try_tbegin > 0 && aconf.skip_lock_out_of_tbegin_retries > 0)
-    atomic_store_relaxed (adapt_count,
-			  aconf.skip_lock_out_of_tbegin_retries);
-
-use_lock:
-  return LLL_LOCK ((*lock), pshared);
-}