From 6b6ede3d15f04fe825cfa9f697507457e3640344 Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Sat, 14 Feb 2015 23:00:19 -0600
Subject: resolve merge

---
 libpthread/linuxthreads/sysdeps/alpha/pspinlock.c | 109 ----------------------
 1 file changed, 109 deletions(-)
 delete mode 100644 libpthread/linuxthreads/sysdeps/alpha/pspinlock.c

(limited to 'libpthread/linuxthreads/sysdeps/alpha/pspinlock.c')

diff --git a/libpthread/linuxthreads/sysdeps/alpha/pspinlock.c b/libpthread/linuxthreads/sysdeps/alpha/pspinlock.c
deleted file mode 100644
index cdf4be99c..000000000
--- a/libpthread/linuxthreads/sysdeps/alpha/pspinlock.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* POSIX spinlock implementation.  Alpha version.
-   Copyright (C) 2000 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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-
-/* This implementation is similar to the one used in the Linux kernel.
-   But the kernel is byte instructions for the memory access.  This is
-   faster but unusable here.  The problem is that only 128
-   threads/processes could use the spinlock at the same time.  If (by
-   a design error in the program) a thread/process would hold the
-   spinlock for a time long enough to accumulate 128 waiting
-   processes, the next one will find a positive value in the spinlock
-   and assume it is unlocked.  We cannot accept that.  */
-
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
-  unsigned int tmp;
-  __asm__ __volatile__
-    ("1:	ldl_l	%0,%1\n"
-     "		blbs	%0,2f\n"
-     "		or	%0,1,%0\n"
-     "		stl_c	%0,%1\n"
-     "		beq	%0,2f\n"
-     "		mb\n"
-     ".subsection 2\n"
-     "2:	ldl	%0,%1\n"
-     "		blbs	%0,2b\n"
-     "		br	1b\n"
-     ".previous"
-     : "=r" (tmp), "=m" (lock)
-     : "m" (lock));
-  return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
-  unsigned long int oldval;
-  unsigned long int temp;
-
-  __asm__ __volatile__
-    ("1:	ldl_l	%0,%1\n"
-     "		and	%0,%3,%2\n"
-     "		bne	%2,2f\n"
-     "		xor	%0,%3,%0\n"
-     "		stl_c	%0,%1\n"
-     "		beq	%0,3f\n"
-     "		mb\n"
-     "2:\n"
-     ".subsection 2\n"
-     "3:	br	1b\n"
-     ".previous"
-     : "=&r" (temp), "=m" (*lock), "=&r" (oldval)
-     : "Ir" (1UL), "m" (*lock));
-
-  return oldval == 0 ? 0 : EBUSY;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
-  __asm__ __volatile__ ("mb");
-  return *lock = 0;
-}
-weak_alias (__pthread_spin_unlock, pthread_spin_unlock)
-
-
-int
-__pthread_spin_init (pthread_spinlock_t *lock, int pshared)
-{
-  /* We can ignore the `pshared' parameter.  Since we are busy-waiting
-     all processes which can access the memory location `lock' points
-     to can use the spinlock.  */
-  *lock = 0;
-  return 0;
-}
-weak_alias (__pthread_spin_init, pthread_spin_init)
-
-
-int
-__pthread_spin_destroy (pthread_spinlock_t *lock)
-{
-  /* Nothing to do.  */
-  return 0;
-}
-weak_alias (__pthread_spin_destroy, pthread_spin_destroy)
-- 
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