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authorJakub Jelinek <jakub@redhat.com>2005-05-24 16:31:35 +0000
committerJakub Jelinek <jakub@redhat.com>2005-05-24 16:31:35 +0000
commitfa5b2af750e09b61ffc5f636f269968429de1ba1 (patch)
tree9d1ca066b56ea69650148357d2873df6e5398f7f /linuxthreads/sysdeps/arm/pspinlock.c
parent79fa824a275808f400d3751e2559471f5cb43119 (diff)
Updated to fedora-glibc-20050524T1606
Diffstat (limited to 'linuxthreads/sysdeps/arm/pspinlock.c')
-rw-r--r--linuxthreads/sysdeps/arm/pspinlock.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/linuxthreads/sysdeps/arm/pspinlock.c b/linuxthreads/sysdeps/arm/pspinlock.c
deleted file mode 100644
index 665e270b69..0000000000
--- a/linuxthreads/sysdeps/arm/pspinlock.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* POSIX spinlock implementation. Arm 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,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <errno.h>
-#include <pthread.h>
-#include "internals.h"
-
-
-int
-__pthread_spin_lock (pthread_spinlock_t *lock)
-{
- unsigned int val;
-
- do
- asm volatile ("swp %0, %1, [%2]"
- : "=r" (val)
- : "0" (1), "r" (lock)
- : "memory");
- while (val != 0);
-
- return 0;
-}
-weak_alias (__pthread_spin_lock, pthread_spin_lock)
-
-
-int
-__pthread_spin_trylock (pthread_spinlock_t *lock)
-{
- unsigned int val;
-
- asm volatile ("swp %0, %1, [%2]"
- : "=r" (val)
- : "0" (1), "r" (lock)
- : "memory");
-
- return val ? EBUSY : 0;
-}
-weak_alias (__pthread_spin_trylock, pthread_spin_trylock)
-
-
-int
-__pthread_spin_unlock (pthread_spinlock_t *lock)
-{
- 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. */
- return *lock = 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)