libpthread/nptl: core of the "Native Posix Threading Library" for uClibc

targetting arm,sh,i386,mips,sparc for now

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

36 files changed, 4217 insertions, 0 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile
new file mode 100644
index 000000000..b32ce29ef
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile
@@ -0,0 +1,4 @@
+ifeq ($(subdir),nptl)
+CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions \
+		       -fno-asynchronous-unwind-tables $(fno-unit-at-a-time)
+endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Versions b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Versions
new file mode 100644
index 000000000..3b111ddb5
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Versions
@@ -0,0 +1,7 @@
+librt {
+  GLIBC_2.3.3 {
+    # Changed timer_t.
+    timer_create; timer_delete; timer_getoverrun; timer_gettime;
+    timer_settime;
+  }
+}
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
new file mode 100644
index 000000000..51fdab0fb
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h
@@ -0,0 +1,209 @@
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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.  */
+
+#ifndef _BITS_PTHREADTYPES_H
+#define _BITS_PTHREADTYPES_H	1
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_PTHREAD_ATTR_T 56
+# define __SIZEOF_PTHREAD_MUTEX_T 40
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 56
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 32
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#else
+# define __SIZEOF_PTHREAD_ATTR_T 36
+# define __SIZEOF_PTHREAD_MUTEX_T 24
+# define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+# define __SIZEOF_PTHREAD_COND_T 48
+# define __SIZEOF_PTHREAD_CONDATTR_T 4
+# define __SIZEOF_PTHREAD_RWLOCK_T 32
+# define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+# define __SIZEOF_PTHREAD_BARRIER_T 20
+# define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+#endif
+
+
+/* Thread identifiers.  The structure of the attribute type is not
+   exposed on purpose.  */
+typedef unsigned long int pthread_t;
+
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_ATTR_T];
+  long int __align;
+} pthread_attr_t;
+
+
+#if __WORDSIZE == 64
+typedef struct __pthread_internal_list
+{
+  struct __pthread_internal_list *__prev;
+  struct __pthread_internal_list *__next;
+} __pthread_list_t;
+#else
+typedef struct __pthread_internal_slist
+{
+  struct __pthread_internal_slist *__next;
+} __pthread_slist_t;
+#endif
+
+
+/* Data structures for mutex handling.  The structure of the attribute
+   type is not exposed on purpose.  */
+typedef union
+{
+  struct
+  {
+    int __lock;
+    unsigned int __count;
+    int __owner;
+#if __WORDSIZE == 64
+    unsigned int __nusers;
+#endif
+    /* KIND must stay at this position in the structure to maintain
+       binary compatibility.  */
+    int __kind;
+#if __WORDSIZE != 64
+    unsigned int __nusers;
+#endif
+    int __spins;
+  } __data;
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];
+  long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+  int __align;
+} pthread_mutexattr_t;
+
+
+/* Data structure for conditional variable handling.  The structure of
+   the attribute type is not exposed on purpose.  */
+typedef union
+{
+  struct
+  {
+    int __lock;
+    unsigned int __futex;
+    __extension__ unsigned long long int __total_seq;
+    __extension__ unsigned long long int __wakeup_seq;
+    __extension__ unsigned long long int __woken_seq;
+    void *__mutex;
+    unsigned int __nwaiters;
+    unsigned int __broadcast_seq;
+  } __data;
+  char __size[__SIZEOF_PTHREAD_COND_T];
+  __extension__ long long int __align;
+} pthread_cond_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_CONDATTR_T];
+  int __align;
+} pthread_condattr_t;
+
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K
+/* Data structure for read-write lock variable handling.  The
+   structure of the attribute type is not exposed on purpose.  */
+typedef union
+{
+# if __WORDSIZE == 64
+  struct
+  {
+    int __lock;
+    unsigned int __nr_readers;
+    unsigned int __readers_wakeup;
+    unsigned int __writer_wakeup;
+    unsigned int __nr_readers_queued;
+    unsigned int __nr_writers_queued;
+    int __writer;
+    int __pad1;
+    unsigned long int __pad2;
+    unsigned long int __pad3;
+    /* FLAGS must stay at this position in the structure to maintain
+       binary compatibility.  */
+    unsigned int __flags;
+  } __data;
+# else
+  struct
+  {
+    int __lock;
+    unsigned int __nr_readers;
+    unsigned int __readers_wakeup;
+    unsigned int __writer_wakeup;
+    unsigned int __nr_readers_queued;
+    unsigned int __nr_writers_queued;
+    /* FLAGS must stay at this position in the structure to maintain
+       binary compatibility.  */
+    unsigned int __flags;
+    int __writer;
+  } __data;
+# endif
+  char __size[__SIZEOF_PTHREAD_RWLOCK_T];
+  long int __align;
+} pthread_rwlock_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
+  long int __align;
+} pthread_rwlockattr_t;
+#endif
+
+
+#ifdef __USE_XOPEN2K
+/* POSIX spinlock data type.  */
+typedef volatile int pthread_spinlock_t;
+
+
+/* POSIX barriers data type.  The structure of the type is
+   deliberately not exposed.  */
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_BARRIER_T];
+  long int __align;
+} pthread_barrier_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
+  int __align;
+} pthread_barrierattr_t;
+#endif
+
+
+#endif	/* bits/pthreadtypes.h */
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/semaphore.h
new file mode 100644
index 000000000..57edbbbfb
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/bits/semaphore.h
@@ -0,0 +1,44 @@
+/* Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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.  */
+
+#ifndef _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+# define __SIZEOF_SEM_T	32
+#else
+# define __SIZEOF_SEM_T	16
+#endif
+
+
+/* Value returned if `sem_open' failed.  */
+#define SEM_FAILED      ((sem_t *) 0)
+
+/* Maximum value the semaphore can have.  */
+#define SEM_VALUE_MAX   (2147483647)
+
+
+typedef union
+{
+  char __size[__SIZEOF_SEM_T];
+  long int __align;
+} sem_t;
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S
new file mode 100644
index 000000000..dfa6adb3e
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/clone.S
@@ -0,0 +1,2 @@
+#define RESET_PID
+#include <sysdeps/unix/sysv/linux/x86_64/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
new file mode 100644
index 000000000..02485daa5
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/compat-timer.h
@@ -0,0 +1,46 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.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; 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 <signal.h>
+#include <time.h>
+#include <sys/types.h>
+
+#define OLD_TIMER_MAX	256
+
+extern timer_t __compat_timer_list[OLD_TIMER_MAX] attribute_hidden;
+
+
+extern int __timer_create_new (clockid_t clock_id, struct sigevent *evp,
+			       timer_t *timerid);
+extern int __timer_delete_new (timer_t timerid);
+extern int __timer_getoverrun_new (timer_t timerid);
+extern int __timer_gettime_new (timer_t timerid, struct itimerspec *value);
+extern int __timer_settime_new (timer_t timerid, int flags,
+				const struct itimerspec *value,
+				struct itimerspec *ovalue);
+
+
+extern int __timer_create_old (clockid_t clock_id, struct sigevent *evp,
+			       int *timerid);
+extern int __timer_delete_old (int timerid);
+extern int __timer_getoverrun_old (int timerid);
+extern int __timer_gettime_old (int timerid, struct itimerspec *value);
+extern int __timer_settime_old (int timerid, int flags,
+				const struct itimerspec *value,
+				struct itimerspec *ovalue);
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/fork.c
new file mode 100644
index 000000000..c828e158d
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/fork.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.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 <sched.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <tls.h>
+
+
+#define ARCH_FORK() \
+  INLINE_SYSCALL (clone, 4,						      \
+		  CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0,     \
+		  NULL, &THREAD_SELF->tid)
+
+#include "../fork.c"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S
new file mode 100644
index 000000000..3621efa4f
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S
@@ -0,0 +1,30 @@
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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.  */
+
+/* In libc.so we do not unconditionally use the lock prefix.  Only if
+   the application is using threads.  */
+#ifndef UP
+# define LOCK \
+	cmpl	$0, __libc_multiple_threads(%rip); 			      \
+	je	0f;							      \
+	lock;								      \
+0:
+#endif
+
+#include "lowlevellock.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
new file mode 100644
index 000000000..3a49e25dd
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S
@@ -0,0 +1,283 @@
+/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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 <sysdep.h>
+#include <pthread-errnos.h>
+
+	.text
+
+#ifndef LOCK
+# ifdef UP
+#  define LOCK
+# else
+#  define LOCK lock
+# endif
+#endif
+
+#define SYS_futex		202
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+/* For the calculation see asm/vsyscall.h.  */
+#define VSYSCALL_ADDR_vgettimeofday	0xffffffffff600000
+
+
+	.globl	__lll_mutex_lock_wait
+	.type	__lll_mutex_lock_wait,@function
+	.hidden	__lll_mutex_lock_wait
+	.align	16
+__lll_mutex_lock_wait:
+	pushq	%r10
+	pushq	%rdx
+
+	xorq	%r10, %r10	/* No timeout.  */
+	movl	$2, %edx
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
+
+	cmpl	%edx, %eax	/* NB:	 %edx == 2 */
+	jne	2f
+
+1:	movl	$SYS_futex, %eax
+	syscall
+
+2:	movl	%edx, %eax
+	xchgl	%eax, (%rdi)	/* NB:	 lock is implied */
+
+	testl	%eax, %eax
+	jnz	1b
+
+	popq	%rdx
+	popq	%r10
+	retq
+	.size	__lll_mutex_lock_wait,.-__lll_mutex_lock_wait
+
+
+#ifdef NOT_IN_libc
+	.globl	__lll_mutex_timedlock_wait
+	.type	__lll_mutex_timedlock_wait,@function
+	.hidden	__lll_mutex_timedlock_wait
+	.align	16
+__lll_mutex_timedlock_wait:
+	/* Check for a valid timeout value.  */
+	cmpq	$1000000000, 8(%rdx)
+	jae	3f
+
+	pushq	%r8
+	pushq	%r9
+	pushq	%r12
+	pushq	%r13
+	pushq	%r14
+
+	/* Stack frame for the timespec and timeval structs.  */
+	subq	$16, %rsp
+
+	movq	%rdi, %r12
+	movq	%rdx, %r13
+
+1:
+	/* Get current time.  */
+	movq	%rsp, %rdi
+	xorl	%esi, %esi
+	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
+	/* This is a regular function call, all caller-save registers
+	   might be clobbered.  */
+	callq	*%rax
+
+	/* Compute relative timeout.  */
+	movq	8(%rsp), %rax
+	movl	$1000, %edi
+	mul	%rdi		/* Milli seconds to nano seconds.  */
+	movq	(%r13), %rdi
+	movq	8(%r13), %rsi
+	subq	(%rsp), %rdi
+	subq	%rax, %rsi
+	jns	4f
+	addq	$1000000000, %rsi
+	decq	%rdi
+4:	testq	%rdi, %rdi
+	js	5f		/* Time is already up.  */
+
+	/* Futex call.  */
+	movq	%rdi, (%rsp)	/* Store relative timeout.  */
+	movq	%rsi, 8(%rsp)
+
+	movl	$1, %eax
+	movl	$2, %edx
+	LOCK
+	cmpxchgl %edx, (%r12)
+
+	testl	%eax, %eax
+	je	8f
+
+	movq	%rsp, %r10
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
+	movq	%r12, %rdi
+	movl	$SYS_futex, %eax
+	syscall
+	movq	%rax, %rcx
+
+8:				/* NB: %edx == 2 */
+	xorl	%eax, %eax
+	LOCK
+	cmpxchgl %edx, (%rdi)
+	jnz	7f
+
+6:	addq	$16, %rsp
+	popq	%r14
+	popq	%r13
+	popq	%r12
+	popq	%r9
+	popq	%r8
+	retq
+
+	/* Check whether the time expired.  */
+7:	cmpq	$-ETIMEDOUT, %rcx
+	je	5f
+
+	/* Make sure the current holder knows we are going to sleep.  */
+	movl	%edx, %eax
+	xchgl	%eax, (%rdi)
+	testl	%eax, %eax
+	jz	6b
+	jmp	1b
+
+3:	movl	$EINVAL, %eax
+	retq
+
+5:	movl	$ETIMEDOUT, %eax
+	jmp	6b
+	.size	__lll_mutex_timedlock_wait,.-__lll_mutex_timedlock_wait
+#endif
+
+
+#ifdef NOT_IN_libc
+	.globl	lll_unlock_wake_cb
+	.type	lll_unlock_wake_cb,@function
+	.hidden	lll_unlock_wake_cb
+	.align	16
+lll_unlock_wake_cb:
+	pushq	%rsi
+	pushq	%rdx
+
+	LOCK
+	addl	$1, (%rdi)
+	jng	1f
+
+	popq	%rdx
+	popq	%rsi
+	retq
+	.size	lll_unlock_wake_cb,.-lll_unlock_wake_cb
+#endif
+
+
+	.globl	__lll_mutex_unlock_wake
+	.type	__lll_mutex_unlock_wake,@function
+	.hidden	__lll_mutex_unlock_wake
+	.align	16
+__lll_mutex_unlock_wake:
+	pushq	%rsi
+	pushq	%rdx
+
+	movl	$0, (%rdi)
+	movl	$FUTEX_WAKE, %esi
+	movl	$1, %edx	/* Wake one thread.  */
+	movl	$SYS_futex, %eax
+	syscall
+
+	popq	%rdx
+	popq	%rsi
+	retq
+	.size	__lll_mutex_unlock_wake,.-__lll_mutex_unlock_wake
+
+
+#ifdef NOT_IN_libc
+	.globl	__lll_timedwait_tid
+	.type	__lll_timedwait_tid,@function
+	.hidden	__lll_timedwait_tid
+	.align	16
+__lll_timedwait_tid:
+	pushq	%r12
+	pushq	%r13
+
+	movq	%rdi, %r12
+	movq	%rsi, %r13
+
+	subq	$16, %rsp
+
+	/* Get current time.  */
+2:	movq	%rsp, %rdi
+	xorl	%esi, %esi
+	movq	$VSYSCALL_ADDR_vgettimeofday, %rax
+	callq	*%rax
+
+	/* Compute relative timeout.  */
+	movq	8(%rsp), %rax
+	movl	$1000, %edi
+	mul	%rdi		/* Milli seconds to nano seconds.  */
+	movq	(%r13), %rdi
+	movq	8(%r13), %rsi
+	subq	(%rsp), %rdi
+	subq	%rax, %rsi
+	jns	5f
+	addq	$1000000000, %rsi
+	decq	%rdi
+5:	testq	%rdi, %rdi
+	js	6f		/* Time is already up.  */
+
+	movq	%rdi, (%rsp)	/* Store relative timeout.  */
+	movq	%rsi, 8(%rsp)
+
+	movl	(%r12), %edx
+	testl	%edx, %edx
+	jz	4f
+
+	movq	%rsp, %r10
+#if FUTEX_WAIT == 0
+	xorl	%esi, %esi
+#else
+	movl	$FUTEX_WAIT, %esi
+#endif
+	movq	%r12, %rdi
+	movl	$SYS_futex, %eax
+	syscall
+
+	cmpl	$0, (%rdi)
+	jne	1f
+4:	xorl	%eax, %eax
+
+8:	addq	$16, %rsp
+	popq	%r13
+	popq	%r12
+	retq
+
+1:	cmpq	$-ETIMEDOUT, %rax
+	jne	2b
+
+6:	movl	$ETIMEDOUT, %eax
+	jmp	8b
+	.size	__lll_timedwait_tid,.-__lll_timedwait_tid
+#endif
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
new file mode 100644
index 000000000..40c2518af
--- /dev/null
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
@@ -0,0 +1,341 @@
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+   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.  */
+
+#ifndef _LOWLEVELLOCK_H
+#define _LOWLEVELLOCK_H	1
+
+#include <time.h>
+#include <sys/param.h>
+#include <bits/pthreadtypes.h>
+
+#ifndef LOCK_INSTR
+# ifdef UP
+#  define LOCK_INSTR	/* nothing */
+# else
+#  define LOCK_INSTR "lock;"
+# endif
+#endif
+
+#define SYS_futex		202
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+
+/* Initializer for compatibility lock.  */
+#define LLL_MUTEX_LOCK_INITIALIZER		(0)
+#define LLL_MUTEX_LOCK_INITIALIZER_LOCKED	(1)
+#define LLL_MUTEX_LOCK_INITIALIZER_WAITERS	(2)
+
+/* Delay in spinlock loop.  */
+#define BUSY_WAIT_NOP          asm ("rep; nop")
+
+
+#define lll_futex_wait(futex, val) \
+  do {									      \
+    int __ignore;							      \
+    register __typeof (val) _val asm ("edx") = (val);			      \
+    __asm __volatile ("xorq %%r10, %%r10\n\t"				      \
+		      "syscall"						      \
+		      : "=a" (__ignore)					      \
+		      : "0" (SYS_futex), "D" (futex), "S" (FUTEX_WAIT),	      \
+			"d" (_val)					      \
+		      : "memory", "cc", "r10", "r11", "cx");		      \
+  } while (0)
+
+
+#define lll_futex_wake(futex, nr) \
+  do {									      \
+    int