powerpc: remove linux lowlevellock.h

This patch remove the powerpc specific lowlevellock.h and adjust some
implementation that rely on __lll_[rel/acq]_instr defines.

4 files changed, 15 insertions, 347 deletions

diff --git a/ChangeLog b/ChangeLog
index e127a08c27..0d37530437 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,14 @@
-2014-10-02  Chris Metcalf  <cmetcalf@tilera.com>
+2014-10-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Remove file.
+	* sysdeps/unix/sysv/linux/powerpc/pthread_spin_unlock.c
+	(pthread_spin_unlock): Use __ARCH_REL_INSTR instead of
+	__lll_rel_instr and __ARCH_ACQ_INSTR instead of __lll_acq_instr.
+	* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
+	Likewise.
+	(__old_sem_post): Likewise.
+
+2014-10-06  Chris Metcalf  <cmetcalf@tilera.com>
 
 	* sysdeps/unix/sysv/linux/tile/sysdep.h (INLINE_VSYSCALL): Define
 	INLINE_VSYSCALL, INTERNAL_VSYSCALL, and
diff --git a/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h b/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
deleted file mode 100644
index a651d23c50..0000000000
--- a/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
+++ /dev/null
@@ -1,342 +0,0 @@
-/* Copyright (C) 2003-2014 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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _LOWLEVELLOCK_H
-#define _LOWLEVELLOCK_H	1
-
-#include <time.h>
-#include <sys/param.h>
-#include <bits/pthreadtypes.h>
-#include <atomic.h>
-#include <kernel-features.h>
-
-#ifndef __NR_futex
-# define __NR_futex		221
-#endif
-#define FUTEX_WAIT		0
-#define FUTEX_WAKE		1
-#define FUTEX_REQUEUE		3
-#define FUTEX_CMP_REQUEUE	4
-#define FUTEX_WAKE_OP		5
-#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE	((4 << 24) | 1)
-#define FUTEX_LOCK_PI		6
-#define FUTEX_UNLOCK_PI		7
-#define FUTEX_TRYLOCK_PI	8
-#define FUTEX_WAIT_BITSET	9
-#define FUTEX_WAKE_BITSET	10
-#define FUTEX_WAIT_REQUEUE_PI   11
-#define FUTEX_CMP_REQUEUE_PI    12
-#define FUTEX_PRIVATE_FLAG	128
-#define FUTEX_CLOCK_REALTIME	256
-
-#define FUTEX_BITSET_MATCH_ANY	0xffffffff
-
-/* Values for 'private' parameter of locking macros.  Yes, the
-   definition seems to be backwards.  But it is not.  The bit will be
-   reversed before passing to the system call.  */
-#define LLL_PRIVATE	0
-#define LLL_SHARED	FUTEX_PRIVATE_FLAG
-
-#if !defined NOT_IN_libc || defined IS_IN_rtld
-/* In libc.so or ld.so all futexes are private.  */
-# ifdef __ASSUME_PRIVATE_FUTEX
-#  define __lll_private_flag(fl, private) \
-  ((fl) | FUTEX_PRIVATE_FLAG)
-# else
-#  define __lll_private_flag(fl, private) \
-  ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))
-# endif
-#else
-# ifdef __ASSUME_PRIVATE_FUTEX
-#  define __lll_private_flag(fl, private) \
-  (((fl) | FUTEX_PRIVATE_FLAG) ^ (private))
-# else
-#  define __lll_private_flag(fl, private) \
-  (__builtin_constant_p (private)					      \
-   ? ((private) == 0							      \
-      ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex))	      \
-      : (fl))								      \
-   : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG)				      \
-	      & THREAD_GETMEM (THREAD_SELF, header.private_futex))))
-# endif
-#endif
-
-#define lll_futex_wait(futexp, val, private) \
-  lll_futex_timed_wait (futexp, val, NULL, private)
-
-#define lll_futex_timed_wait(futexp, val, timespec, private) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp),		      \
-			      __lll_private_flag (FUTEX_WAIT, private),	      \
-			      (val), (timespec));			      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
-  })
-
-#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-    int __op = FUTEX_WAIT_BITSET | clockbit;				      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
-			      __lll_private_flag (__op, private),	      \
-			      (val), (timespec), NULL /* Unused.  */, 	      \
-			      FUTEX_BITSET_MATCH_ANY);			      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
-  })
-
-#define lll_futex_wake(futexp, nr, private) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp),		      \
-			      __lll_private_flag (FUTEX_WAKE, private),	      \
-			      (nr), 0);					      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
-  })
-
-/* Returns non-zero if error happened, zero if success.  */
-#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
-			      __lll_private_flag (FUTEX_CMP_REQUEUE, private),\
-			      (nr_wake), (nr_move), (mutex), (val));	      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
-  })
-
-/* Returns non-zero if error happened, zero if success.  */
-#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
-			      __lll_private_flag (FUTEX_WAKE_OP, private),    \
-			      (nr_wake), (nr_wake2), (futexp2),		      \
-			      FUTEX_OP_CLEAR_WAKE_IF_GT_ONE);		      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
-  })
-
-/* Priority Inheritance support.  */
-#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \
-  lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private)
-
-#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit,      \
-					mutex, private)			      \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-    int __op = FUTEX_WAIT_REQUEUE_PI | clockbit;			      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp),		      \
-			      __lll_private_flag (__op, private),	      \
-			      (val), (timespec), mutex); 		      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret;		      \
-  })
-
-#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv)  \
-  ({									      \
-    INTERNAL_SYSCALL_DECL (__err);					      \
-    long int __ret;							      \
-									      \
-    __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp),		      \
-			      __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\
-			      (nr_wake), (nr_move), (mutex), (val));	      \
-    INTERNAL_SYSCALL_ERROR_P (__ret, __err);				      \
-  })
-
-
-#ifdef UP
-# define __lll_acq_instr	""
-# define __lll_rel_instr	""
-#else
-# define __lll_acq_instr	"isync"
-# ifdef _ARCH_PWR4
-/*
- * Newer powerpc64 processors support the new "light weight" sync (lwsync)
- * So if the build is using -mcpu=[power4,power5,power5+,970] we can
- * safely use lwsync.
- */
-#  define __lll_rel_instr	"lwsync"
-# else
-/*
- * Older powerpc32 processors don't support the new "light weight"
- * sync (lwsync).  So the only safe option is to use normal sync
- * for all powerpc32 applications.
- */
-#  define __lll_rel_instr	"sync"
-# endif
-#endif
-
-/* Set *futex to ID if it is 0, atomically.  Returns the old value */
-#define __lll_base_trylock(futex, id) \
-  ({ int __val;								      \
-     __asm __volatile ("1:	lwarx	%0,0,%2" MUTEX_HINT_ACQ "\n"	      \
-		       "	cmpwi	0,%0,0\n"			      \
-		       "	bne	2f\n"				      \
-		       "	stwcx.	%3,0,%2\n"			      \
-		       "	bne-	1b\n"				      \
-		       "2:	" __lll_acq_instr			      \
-		       : "=&r" (__val), "=m" (*futex)			      \
-		       : "r" (futex), "r" (id), "m" (*futex)		      \
-		       : "cr0", "memory");				      \
-     __val;								      \
-  })
-
-/* Set *futex to 1 if it is 0, atomically.  Returns the old value */
-#define __lll_trylock(futex) __lll_base_trylock (futex, 1)
-
-#define lll_trylock(lock)	__lll_trylock (&(lock))
-
-/* Set *futex to 2 if it is 0, atomically.  Returns the old value */
-#define __lll_cond_trylock(futex) __lll_base_trylock (futex, 2)
-
-#define lll_cond_trylock(lock)	__lll_cond_trylock (&(lock))
-
-
-extern void __lll_lock_wait_private (int *futex) attribute_hidden;
-extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
-extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden;
-
-#define lll_lock(lock, private) \
-  (void) ({								      \
-    int *__futex = &(lock);						      \
-    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
-			  0) != 0)					      \
-      {									      \
-	if (__builtin_constant_p (private) && (private) == LLL_PRIVATE)	      \
-	  __lll_lock_wait_private (__futex);				      \
-	else								      \
-	  __lll_lock_wait (__futex, private);				      \
-      }									      \
-  })
-
-#define lll_robust_lock(lock, id, private) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
-								0), 0))	      \
-      __val = __lll_robust_lock_wait (__futex, private);		      \
-    __val;								      \
-  })
-
-#define lll_cond_lock(lock, private) \
-  (void) ({								      \
-    int *__futex = &(lock);						      \
-    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 2, 0),\
-			  0) != 0)					      \
-      __lll_lock_wait (__futex, private);				      \
-  })
-
-#define lll_robust_cond_lock(lock, id, private) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    int __id = id | FUTEX_WAITERS;					      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, __id,\
-								0), 0))	      \
-      __val = __lll_robust_lock_wait (__futex, private);		      \
-    __val;								      \
-  })
-
-
-extern int __lll_timedlock_wait
-  (int *futex, const struct timespec *, int private) attribute_hidden;
-extern int __lll_robust_timedlock_wait
-  (int *futex, const struct timespec *, int private) attribute_hidden;
-
-#define lll_timedlock(lock, abstime, private) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, 1, 0),\
-			  0) != 0)					      \
-      __val = __lll_timedlock_wait (__futex, abstime, private);		      \
-    __val;								      \
-  })
-
-#define lll_robust_timedlock(lock, abstime, id, private) \
-  ({									      \
-    int *__futex = &(lock);						      \
-    int __val = 0;							      \
-    if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id,  \
-								0), 0))	      \
-      __val = __lll_robust_timedlock_wait (__futex, abstime, private);	      \
-    __val;								      \
-  })
-
-#define lll_unlock(lock, private) \
-  ((void) ({								      \
-    int *__futex = &(lock);						      \
-    int __val = atomic_exchange_rel (__futex, 0);			      \
-    if (__glibc_unlikely (__val > 1))					      \
-      lll_futex_wake (__futex, 1, private);				      \
-  }))
-
-#define lll_robust_unlock(lock, private) \
-  ((void) ({								      \
-    int *__futex = &(lock);						      \
-    int __val = atomic_exchange_rel (__futex, 0);			      \
-    if (__glibc_unlikely (__val & FUTEX_WAITERS))			      \
-      lll_futex_wake (__futex, 1, private);				      \
-  }))
-
-#define lll_islocked(futex) \
-  (futex != 0)
-
-
-/* Initializers for lock.  */
-#define LLL_LOCK_INITIALIZER		(0)
-#define LLL_LOCK_INITIALIZER_LOCKED	(1)
-
-/* The states of a lock are:
-    0  -  untaken
-    1  -  taken by one user
-   >1  -  taken by more users */
-
-/* The kernel notifies a process which uses CLONE_CHILD_CLEARTID via futex
-   wakeup when the clone terminates.  The memory location contains the
-   thread ID while the clone is running and is reset to zero
-   afterwards.	*/
-#define lll_wait_tid(tid) \
-  do {									      \
-    __typeof (tid) __tid;						      \
-    while ((__tid = (tid)) != 0)					      \
-      lll_futex_wait (&(tid), __tid, LLL_SHARED);			      \
-  } while (0)
-
-extern int __lll_timedwait_tid (int *, const struct timespec *)
-     attribute_hidden;
-
-#define lll_timedwait_tid(tid, abstime) \
-  ({									      \
-    int __res = 0;							      \
-    if ((tid) != 0)							      \
-      __res = __lll_timedwait_tid (&(tid), (abstime));			      \
-    __res;								      \
-  })
-
-#endif	/* lowlevellock.h */
diff --git a/sysdeps/unix/sysv/linux/powerpc/pthread_spin_unlock.c b/sysdeps/unix/sysv/linux/powerpc/pthread_spin_unlock.c
index 2b8c84d756..4906205ce0 100644
--- a/sysdeps/unix/sysv/linux/powerpc/pthread_spin_unlock.c
+++ b/sysdeps/unix/sysv/linux/powerpc/pthread_spin_unlock.c
@@ -22,7 +22,7 @@
 int
 pthread_spin_unlock (pthread_spinlock_t *lock)
 {
-  __asm __volatile (__lll_rel_instr ::: "memory");
+  __asm __volatile (__ARCH_REL_INSTR ::: "memory");
   *lock = 0;
   return 0;
 }
diff --git a/sysdeps/unix/sysv/linux/powerpc/sem_post.c b/sysdeps/unix/sysv/linux/powerpc/sem_post.c
index f222d9a69c..831a8dd4de 100644
--- a/sysdeps/unix/sysv/linux/powerpc/sem_post.c
+++ b/sysdeps/unix/sysv/linux/powerpc/sem_post.c
@@ -30,9 +30,9 @@ __new_sem_post (sem_t *sem)
 {
   struct new_sem *isem = (struct new_sem *) sem;
 
-  __asm __volatile (__lll_rel_instr ::: "memory");
+  __asm __volatile (__ARCH_REL_INSTR ::: "memory");
   atomic_increment (&isem->value);
-  __asm __volatile (__lll_acq_instr ::: "memory");
+  __asm __volatile (__ARCH_ACQ_INSTR ::: "memory");
   if (isem->nwaiters > 0)
     {
       int err = lll_futex_wake (&isem->value, 1,
@@ -55,7 +55,7 @@ __old_sem_post (sem_t *sem)
 {
   int *futex = (int *) sem;
 
-  __asm __volatile (__lll_rel_instr ::: "memory");
+  __asm __volatile (__ARCH_REL_INSTR ::: "memory");
   (void) atomic_increment_val (futex);
   /* We always have to assume it is a shared semaphore.  */
   int err = lll_futex_wake (futex, 1, LLL_SHARED);