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Current changes for NPTL on PPC



Here is the patch with all the extra files needed for NPTL on PPC32.
This together with the other patches I have just posted to phil-list
is running on my powermac and passing a lot of the tests.  I am using
current cvs binutils and current cvs gcc from the gcc-3_3-branch with
a patch from Alan Modra and Janis Johnson.  I am using a 2.5.64 kernel
(actually BK from a day or two ago) with some patches that I will send
to Linus shortly.

Paul.

diff -urN nptl-0.28/nptl/sysdeps/powerpc/Makefile libc/nptl/sysdeps/powerpc/Makefile
--- nptl-0.28/nptl/sysdeps/powerpc/Makefile	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/Makefile	Wed Mar 05 16:03:37 2003
@@ -0,0 +1,21 @@
+# Copyright (C) 2002, 2003 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, write to the Free
+# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff -urN nptl-0.28/nptl/sysdeps/powerpc/bits/atomic.h libc/nptl/sysdeps/powerpc/bits/atomic.h
--- nptl-0.28/nptl/sysdeps/powerpc/bits/atomic.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/bits/atomic.h	Sat Mar 08 13:31:16 2003
@@ -0,0 +1,115 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdint.h>
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+
+#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#ifdef UP
+#define __ARCH_ACQ_INSTR	""
+#define __ARCH_REL_INSTR	""
+#else
+#define __ARCH_ACQ_INSTR	"isync"
+#define __ARCH_REL_INSTR	"sync"
+#endif
+
+/*
+ * XXX At present these have both acquire and release semantics.
+ * Ultimately we should do separate _acq and _rel versions.
+ */
+
+/*
+ * XXX this may not work properly on 64-bit if the register
+ * containing oldval has the high half non-zero for some reason.
+ */
+#define __arch_compare_and_exchange_32_acq(mem, newval, oldval)	\
+({								\
+  unsigned int __tmp;						\
+  __asm __volatile(__ARCH_REL_INSTR "\n"			\
+		   "1:	lwarx	%0,0,%1\n"			\
+		   "	subf.	%0,%2,%0\n"			\
+		   "	bne	2f\n"				\
+		   "	stwcx.	%3,0,%1\n"			\
+		   "	bne-	1b\n"				\
+		   "2:	" __ARCH_ACQ_INSTR			\
+		   : "=&r" (__tmp)				\
+		   : "r" (mem), "r" (oldval), "r" (newval)	\
+		   : "cr0", "memory");				\
+  __tmp != 0;							\
+})
+
+#ifdef __powerpc64__
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval)	\
+({								\
+  unsigned long	__tmp;						\
+  __asm __volatile(__ARCH_REL_INSTR "\n"			\
+		   "1:	ldarx	%0,0,%1\n"			\
+		   "	subf.	%0,%2,%0\n"			\
+		   "	bne	2f\n"				\
+		   "	stdcx.	%3,0,%1\n"			\
+		   "	bne-	1b\n"				\
+		   "2:	" __ARCH_ACQ_INSTR			\
+		   : "=&r" (__tmp)				\
+		   : "r" (mem), "r" (oldval), "r" (newval)	\
+		   : "cr0", "memory");				\
+  __tmp != 0;							\
+})
+
+#else /* powerpc32 */
+#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+  (abort (), 0)
+#endif
+
+#define atomic_full_barrier()	__asm("sync" ::: "memory")
+#ifdef __powerpc64__
+#define atomic_read_barrier()	__asm("lwsync" ::: "memory")
+#else
+#define atomic_read_barrier()	__asm("sync" ::: "memory")
+#endif
+#define atomic_write_barrier()	__asm("eieio" ::: "memory")
diff -urN nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_init.c libc/nptl/sysdeps/powerpc/pthread_spin_init.c
--- nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_init.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/pthread_spin_init.c	Mon Mar 10 12:47:16 2003
@@ -0,0 +1,27 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_init (pthread_spinlock_t *lock, int pshared)
+{
+  *lock = 0;
+  return 0;
+}
diff -urN nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_lock.c libc/nptl/sysdeps/powerpc/pthread_spin_lock.c
--- nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_lock.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/pthread_spin_lock.c	Mon Mar 10 22:30:06 2003
@@ -0,0 +1,45 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_lock (lock)
+     pthread_spinlock_t *lock;
+{
+  unsigned int __tmp;
+
+  asm volatile (
+       "1:	lwarx	%0,0,%1\n"
+       "	cmpwi	0,%0,0\n"
+       "	bne-	2f\n"
+       "	stwcx.	%2,0,%1\n"
+       "	bne-	2f\n"
+       "	isync\n"
+       "	.subsection 1\n"
+       "2:	lwzx	%0,0,%1\n"
+       "	cmpwi	0,%0,0\n"
+       "	bne	2b\n"
+       "	b	1b\n"
+       "	.previous"
+       : "=&r" (__tmp)
+       : "r" (lock), "r" (1)
+       : "cr0", "memory");
+  return 0;
+}
diff -urN nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_trylock.c libc/nptl/sysdeps/powerpc/pthread_spin_trylock.c
--- nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_trylock.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/pthread_spin_trylock.c	Wed Mar 05 14:44:53 2003
@@ -0,0 +1,43 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include "pthreadP.h"
+
+int
+pthread_spin_trylock (lock)
+     pthread_spinlock_t *lock;
+{
+  unsigned int old;
+  int err = EBUSY;
+
+  asm ("1:	lwarx	%0,0,%2\n"
+       "	cmpwi	0,%0,0\n"
+       "	bne	2f\n"
+       "	stwcx.	%3,0,%2\n"
+       "	bne-	1b\n"
+       "	li	%1,0\n"
+       "	isync\n"
+       "2:	"
+       : "=&r" (old), "=&r" (err)
+       : "r" (lock), "r" (1), "1" (err)
+       : "cr0", "memory");
+
+  return err;
+}
diff -urN nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_unlock.c libc/nptl/sysdeps/powerpc/pthread_spin_unlock.c
--- nptl-0.28/nptl/sysdeps/powerpc/pthread_spin_unlock.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/pthread_spin_unlock.c	Wed Mar 05 14:24:57 2003
@@ -0,0 +1,28 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+  __asm __volatile ("sync" ::: "memory");
+  *lock = 0;
+  return 0;
+}
diff -urN nptl-0.28/nptl/sysdeps/powerpc/pthreaddef.h libc/nptl/sysdeps/powerpc/pthreaddef.h
--- nptl-0.28/nptl/sysdeps/powerpc/pthreaddef.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/pthreaddef.h	Wed Mar 05 14:46:47 2003
@@ -0,0 +1,44 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Default stack size.  */
+#define ARCH_STACK_DEFAULT_SIZE	(4 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning.  The ABI requires 16
+   bytes (for both 32-bit and 64-bit PowerPC).  */
+#define STACK_ALIGN		16
+
+/* Minimal stack size after allocating thread descriptor and guard size.  */
+#define MINIMAL_REST_STACK	4096
+
+/* Alignment requirement for TCB.  */
+#define TCB_ALIGNMENT		16
+
+/* The signal used for asynchronous cancelation.  */
+#define SIGCANCEL		__SIGRTMIN
+
+
+/* Location of current stack frame.  */
+#define CURRENT_STACK_FRAME	__builtin_frame_address (0)
+
+
+/* XXX Until we have a better place keep the definitions here.  */
+
+/* While there is no such syscall.  */
+#define __exit_thread_inline(val) \
+  INLINE_SYSCALL (exit, 0)
diff -urN nptl-0.28/nptl/sysdeps/powerpc/tcb-offsets.sym libc/nptl/sysdeps/powerpc/tcb-offsets.sym
--- nptl-0.28/nptl/sysdeps/powerpc/tcb-offsets.sym	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/tcb-offsets.sym	Wed Mar 05 16:00:27 2003
@@ -0,0 +1,16 @@
+#include <sysdep.h>
+#include <tls.h>
+
+--
+
+-- This could go into powerpc32/ instead and conditionalize #include of it.
+#ifndef __powerpc64__
+
+-- Abuse tls.h macros to derive offsets relative to the thread register.
+# undef __thread_register
+# define __thread_register	((void *) 0)
+# define thread_offsetof(mem)	((void *) &THREAD_SELF->mem - (void *) 0)
+
+MULTIPLE_THREADS_OFFSET		thread_offsetof (header.data.multiple_threads)
+
+#endif
diff -urN nptl-0.28/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c libc/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c
--- nptl-0.28/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/td_ta_map_lwp2thr.c	Mon Mar 10 14:56:56 2003
@@ -0,0 +1,48 @@
+/* Which thread is running on an LWP?  PowerPC version.
+   Copyright (C) 2002 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "thread_dbP.h"
+#include <tls.h>
+
+
+td_err_e
+td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
+{
+  LOG ("td_ta_map_lwp2thr");
+
+  /* Test whether the TA parameter is ok.  */
+  if (! ta_ok (ta))
+    return TD_BADTA;
+
+  prgregset_t regs;
+  if (ps_lgetregs (ta->ph, lwpid, regs) != PS_OK)
+    return TD_ERR;
+
+  /* XXX do we need to add on the offset to the pthread struct? */
+#ifndef __powerpc64__
+  th->th_unique = (void *) regs[PT_R2];
+#else
+  th->th_unique = (void *) regs[PT_R13];
+#endif
+
+  /* Found it.  Now complete the `td_thrhandle_t' object.  */
+  th->th_ta_p = (td_thragent_t *) ta;
+
+  return TD_OK;
+}
diff -urN nptl-0.28/nptl/sysdeps/powerpc/tls.h libc/nptl/sysdeps/powerpc/tls.h
--- nptl-0.28/nptl/sysdeps/powerpc/tls.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/powerpc/tls.h	Mon Mar 10 12:59:52 2003
@@ -0,0 +1,145 @@
+/* Definition for thread-local data handling.  NPTL/PowerPC version.
+   Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _TLS_H
+#define _TLS_H	1
+
+# include <dl-sysdep.h>
+
+#ifndef __ASSEMBLER__
+# include <stddef.h>
+# include <stdint.h>
+
+/* Type for the dtv.  */
+typedef union dtv
+{
+  size_t counter;
+  void *pointer;
+} dtv_t;
+
+#else /* __ASSEMBLER__ */
+# include <tcb-offsets.h>
+#endif /* __ASSEMBLER__ */
+
+
+/* We require TLS support in the tools.  */
+#ifndef HAVE_TLS_SUPPORT
+# error "TLS support is required."
+#endif
+
+/* Signal that TLS support is available.  */
+# define USE_TLS	1
+
+#ifndef __ASSEMBLER__
+
+/* Get system call information.  */
+# include <sysdep.h>
+
+/* Get the thread descriptor definition.  */
+# include <nptl/descr.h>
+
+/* This layout is actually wholly private and not affected by the ABI.
+   Nor does it overlap the pthread data structure, so we need nothing
+   extra here at all.  */
+typedef struct
+{
+  dtv_t *dtv;
+} tcbhead_t;
+
+/* This is the size of the initial TCB.  */
+# define TLS_INIT_TCB_SIZE	sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB.  */
+# define TLS_INIT_TCB_ALIGN	__alignof__ (tcbhead_t)
+
+/* This is the size of the TCB.  */
+# define TLS_TCB_SIZE		sizeof (tcbhead_t)
+
+/* Alignment requirements for the TCB.  */
+# define TLS_TCB_ALIGN		__alignof__ (tcbhead_t)
+
+/* This is the size we need before TCB.  */
+# define TLS_PRE_TCB_SIZE	sizeof (struct pthread)
+
+/* XXX if __alignof__(struct pthread) > __alignof(tcbhead_t)
+   we could be in trouble.  -- paulus */
+
+# ifndef __powerpc64__
+/* Register r2 (tp) is reserved by the ABI as "thread pointer". */
+register void *__thread_register __asm__("r2");
+# else
+/* Register r13 (tp) is reserved by the ABI as "thread pointer". */
+register void *__thread_register __asm__("r13");
+# endif
+
+/* The following assumes that TP (R2 or R13) points to the end of the
+   TCB + 0x7000 (per the ABI).  This implies that TCB address is
+   TP-(TLS_TCB_SIZE + 0x7000).  As we define TLS_DTV_AT_TP we can
+   assume that the pthread struct is allocated immediately ahead of the
+   TCB.  This implies that the pthread_descr address is
+   TP-(TLS_PRE_TCB_SIZE + TLS_TCB_SIZE + 0x7000).  */
+# define TLS_TCB_OFFSET	0x7000
+
+/* The TP points to the start of the thread blocks.  */
+# define TLS_DTV_AT_TP	1
+
+/* Install the dtv pointer.  The pointer passed is to the element with
+   index -1 which contain the length.  */
+# define INSTALL_DTV(tcbp, dtvp) \
+  ((tcbhead_t *) (tcbp))->dtv = dtvp + 1
+
+/* Install new dtv for current thread.  */
+# define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv))
+
+/* Return dtv of given thread descriptor.  */
+# define GET_DTV(tcbp)	(((tcbhead_t *) (tcbp))->dtv)
+
+/* Code to initially initialize the thread pointer.  This might need
+   special attention since 'errno' is not yet available and if the
+   operation can cause a failure 'errno' must not be touched.  */
+# define TLS_INIT_TP(tcbp, secondcall) \
+    (__thread_register = (void *) (tcbp) + TLS_TCB_OFFSET + TLS_TCB_SIZE, NULL)
+
+/* Return the address of the dtv for the current thread.  */
+# define THREAD_DTV() \
+     (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET - TLS_TCB_SIZE))->dtv)
+
+/* Return the thread descriptor for the current thread.  */
+# define THREAD_SELF \
+    ((struct pthread *) (__thread_register \
+			 - TLS_TCB_OFFSET - TLS_TCB_SIZE - TLS_PRE_TCB_SIZE))
+
+/* Read member of the thread descriptor directly.  */
+# define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member)
+
+/* Same as THREAD_GETMEM, but the member offset can be non-constant.  */
+# define THREAD_GETMEM_NC(descr, member, idx) \
+    ((void)(descr), (THREAD_SELF)->member[idx])
+
+/* Set member of the thread descriptor directly.  */
+# define THREAD_SETMEM(descr, member, value) \
+    ((void)(descr), (THREAD_SELF)->member = (value))
+
+/* Same as THREAD_SETMEM, but the member offset can be non-constant.  */
+# define THREAD_SETMEM_NC(descr, member, idx, value) \
+    ((void)(descr), (THREAD_SELF)->member[idx] = (value))
+
+#endif /* __ASSEMBLER__ */
+
+#endif	/* tls.h */
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile libc/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile	Mon Mar 10 14:36:50 2003
@@ -0,0 +1,2 @@
+# pull in __syscall_error routine
+libpthread-routines += sysdep
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h libc/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h	Wed Mar 05 14:13:24 2003
@@ -0,0 +1,166 @@
+/* Copyright (C) 2003 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, 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
+   deliberately not exposed.  */
+typedef struct __opaque_pthread *pthread_t;
+
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_ATTR_T];
+  long int __align;
+} pthread_attr_t;
+
+
+/* Data structures for mutex handling.  The structure of the attribute
+   type is deliberately not exposed.  */
+typedef union
+{
+  struct
+  {
+    int __lock;
+    unsigned int __count;
+    struct pthread *__owner;
+    /* KIND must stay at this position in the structure to maintain
+       binary compatibility.  */
+    int __kind;
+  } __data;
+  char __size[__SIZEOF_PTHREAD_MUTEX_T];
+  long int __align;
+} pthread_mutex_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
+  long int __align;
+} pthread_mutexattr_t;
+
+
+/* Data structure for conditional variable handling.  The structure of
+   the attribute type is deliberately not exposed.  */
+typedef union
+{
+  struct
+  {
+    int __lock;
+    int __pad;
+    unsigned long long int __total_seq;
+    unsigned long long int __wakeup_seq;
+    unsigned long long int __woken_seq;
+  } __data;
+  char __size[__SIZEOF_PTHREAD_COND_T];
+  long int __align;
+} pthread_cond_t;
+
+typedef union
+{
+  char __size[__SIZEOF_PTHREAD_CONDATTR_T];
+  long int __align;
+} pthread_condattr_t;
+
+
+/* Keys for thread-specific data */
+typedef unsigned int pthread_key_t;
+
+
+/* Once-only execution */
+typedef int pthread_once_t;
+
+
+#ifdef __USE_UNIX98
+/* Data structure for read-write lock variable handling.  The
+   structure of the attribute type is deliberately not exposed.  */
+typedef union
+{
+  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;
+    pthread_t __writer;
+    /* FLAGS must stay at this position in the structure to maintain
+       binary compatibility.  */
+    unsigned int __flags;
+  } __data;
+  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 -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h libc/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h	Wed Mar 05 14:20:01 2003
@@ -0,0 +1,43 @@
+/* Copyright (C) 2003 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, 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   ((int) ((~0u) >> 1))
+
+
+typedef union
+{
+  char __size[__SIZEOF_SEM_T];
+  long int __align;
+} sem_t;
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/createthread.c	Fri Mar 07 15:57:41 2003
@@ -0,0 +1,24 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Paul Mackerras <paulus au ibm com>.
+
+   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.  */
+
+/* Value passed to 'clone' for initialization of the thread register.  */
+#define TLS_VALUE ((void *)(pd) + TLS_TCB_OFFSET + TLS_TCB_SIZE + TLS_PRE_TCB_SIZE)
+
+/* Get the real implementation.	 */
+#include <nptl/sysdeps/pthread/createthread.c>
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/fork.c	Fri Mar 07 15:41:28 2003
@@ -0,0 +1,31 @@
+/* Copyright (C) 2003 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, 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, 5,						      \
+		  CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0,     \
+		  NULL, &THREAD_SELF->tid, NULL)
+
+#include "../fork.c"
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevellock.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevellock.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevellock.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevellock.c	Thu Mar 06 21:42:50 2003
@@ -0,0 +1,21 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* No difference to lowlevellock.c  */
+#include "lowlevellock.c"
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevelmutex.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevelmutex.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevelmutex.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/libc-lowlevelmutex.c	Thu Mar 06 21:43:03 2003
@@ -0,0 +1,21 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* No difference to lowlevelmutex.c  */
+#include "lowlevelmutex.c"
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.c	Mon Mar 10 19:27:30 2003
@@ -0,0 +1,130 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <lowlevellock.h>
+#include <sys/time.h>
+
+
+void __lll_lock_wait (int *futex, int val)
+{
+  do {
+      lll_futex_wait (futex, val+1);
+  } while ((val = __lll_add(futex, 1)) != 0);
+  *futex = 2;
+}
+hidden_proto (__lll_lock_wait)
+
+
+int __lll_timedlock_wait (int *futex, int val, const struct timespec *abstime)
+{
+  int err;
+
+  /* Reject invalid timeouts.  */
+  if (abstime->tv_nsec >= 1000000000)
+    return EINVAL;
+
+  do {
+    struct timeval tv;
+    struct timespec rt;
+    int sec, nsec;
+
+    /* Get the current time.  */
+    gettimeofday (&tv, NULL);
+
+    /* Compute relative timeout.  */
+    sec = abstime->tv_sec - tv.tv_sec;
+    nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+    if (nsec < 0) {
+      nsec += 1000000000;
+      --sec;
+    }
+
+    /* Already timed out?  */
+    err = -ETIMEDOUT;
+    if (sec < 0)
+      break;
+
+    /* Wait.  */
+    rt.tv_sec = sec;
+    rt.tv_nsec = nsec;
+    err = lll_futex_timed_wait (futex, val+1, &rt);
+  } while (err == 0 && (val = __lll_add(futex, 1)) != 0);
+
+  *futex = 2;
+  return -err;
+}
+hidden_proto (__lll_timedlock_wait)
+
+
+/* XXX Should not be in libc.so  */
+int lll_unlock_wake_cb (int *futex)
+{
+  __lll_add(futex, 1);
+  return 0;
+}
+hidden_proto (lll_unlock_wake_cb)
+
+
+/* XXX Should not be in libc.so  */
+int __lll_timedwait_tid (int *tidp, const struct timespec *abstime)
+{
+  int tid;
+  int err = 0;
+
+  if (abstime == NULL || abstime->tv_nsec >= 1000000000)
+    return EINVAL;
+
+  /* Repeat until thread terminated.  */
+  while ((tid = *tidp) != 0) {
+    struct timeval tv;
+    struct timespec rt;
+    int sec, nsec;
+
+    /* Get the current time.  */
+    gettimeofday (&tv, NULL);
+
+    /* Compute relative timeout.  */
+    sec = abstime->tv_sec - tv.tv_sec;
+    nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+    if (nsec < 0) {
+      nsec += 1000000000;
+      --sec;
+    }
+
+    /* Already timed out?  */
+    err = -ETIMEDOUT;
+    if (sec < 0)
+      break;
+
+    /* Wait.  */
+    rt.tv_sec = sec;
+    rt.tv_nsec = nsec;
+
+    /* Wait until thread terminates.  */
+    err = lll_futex_timed_wait (tidp, tid, &rt);
+    if (err != 0)
+      break;
+  }
+
+  return -err;
+}
+
+hidden_proto (__lll_timedwait_tid)
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevellock.h	Tue Mar 11 16:04:14 2003
@@ -0,0 +1,230 @@
+/* Copyright (C) 2003 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 Libr	\ary; 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>
+
+#define __NR_futex		221
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+
+/* Initializer for compatibility lock.	*/
+#define LLL_MUTEX_LOCK_INITIALIZER (0)
+
+#define lll_futex_wait(futexp, val)				\
+  ({								\
+    INTERNAL_SYSCALL_DECL(__err);				\
+    long int __ret;						\
+								\
+    __ret = INTERNAL_SYSCALL(futex, __err, 4,			\
+			     (futexp), FUTEX_WAIT, (val), 0);	\
+    INTERNAL_SYSCALL_ERROR_P(__ret, __err)? -__ret: 0;		\
+  })
+
+#define lll_futex_timed_wait(futexp, val, timespec)			\
+  ({									\
+    INTERNAL_SYSCALL_DECL(__err);					\
+    long int __ret;							\
+									\
+    __ret = INTERNAL_SYSCALL(futex, __err, 4,				\
+			     (futexp), FUTEX_WAIT, (val), (timespec));	\
+    INTERNAL_SYSCALL_ERROR_P(__ret, __err)? -__ret: 0;			\
+  })
+
+#define lll_futex_wake(futexp, nr) 				\
+  ({								\
+    INTERNAL_SYSCALL_DECL(__err);				\
+    long int __ret;						\
+								\
+    __ret = INTERNAL_SYSCALL(futex, __err, 4,			\
+			     (futexp), FUTEX_WAKE, (nr), 0);	\
+    INTERNAL_SYSCALL_ERROR_P(__ret, __err)? -__ret: 0;		\
+  })
+
+#ifdef UP
+#define __lll_acq_instr	""
+#define __lll_rel_instr	""
+#else
+#define __lll_acq_instr	"isync"
+#define __lll_rel_instr	"sync"
+#endif
+
+/* Set *futex to 1 if it is 0, atomically.  Returns the old value */
+#define __lll_trylock(futex)				\
+  ({ int __val;							\
+     __asm __volatile ("1:	lwarx	%0,0,%2\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" (1), "1" (*futex)	\
+		       : "cr0", "memory");			\
+     __val;							\
+  })
+
+#define lll_mutex_trylock(lock)	__lll_trylock(&(lock))
+
+/* Add inc to *futex atomically and return the old value. */
+#define __lll_add(futex, inc)						\
+  ({ int __val, __tmp;							\
+     __asm __volatile ("1:	lwarx	%0,0,%3\n"			\
+		       "	addi	%1,%0,%4\n"			\
+		       "	stwcx.	%1,0,%3\n"			\
+		       "	bne-	1b"				\
+		       : "=&b" (__val), "=&r" (__tmp), "=m" (*futex)	\
+		       : "r" (futex), "I" (inc), "2" (*futex)		\
+		       : "cr0");					\
+     __val;								\
+  })
+
+extern void __lll_lock_wait (int *futex, int val) attribute_hidden;
+
+#define lll_mutex_lock(lock)				\
+  (void) ({						\
+    int *__futex = &(lock);				\
+    int __val = __lll_add(__futex, 1);			\
+    __asm __volatile(__lll_acq_instr ::: "memory");	\
+    if (__builtin_expect(__val != 0, 0))		\
+      __lll_lock_wait(__futex, __val);			\
+  })
+
+extern int __lll_timedlock_wait
+	(int *futex, int val, const struct timespec *) attribute_hidden;
+
+#define lll_mutex_timedlock(lock, abstime)			\
+  ({ int *__futex = &(lock);					\
+     int __val = __lll_add(__futex, 1);				\
+     __asm __volatile(__lll_acq_instr ::: "memory");		\
+     if (__builtin_expect(__val != 0, 0))			\
+       __val = __lll_timedlock_wait(__futex, __val, (abstime));	\
+     __val;							\
+  })
+
+#define lll_mutex_unlock(lock)				\
+  (void) ({						\
+    int *__futex = &(lock);				\
+     __asm __volatile(__lll_rel_instr ::: "memory");	\
+    int __val = __lll_add(__futex, -1);			\
+    if (__builtin_expect(__val != 1, 0)) {		\
+      *__futex = 0;					\
+      lll_futex_wake(__futex, 1);			\
+    }							\
+  })
+
+#define lll_mutex_islocked(futex) \
+  (futex != 0)
+
+
+/* Our internal lock implementation is identical to the binary-compatible
+   mutex implementation. */
+
+/* Type for lock object.  */
+typedef int lll_lock_t;
+
+/* Initializers for lock.  */
+#define LLL_LOCK_INITIALIZER		(0)
+#define LLL_LOCK_INITIALIZER_LOCKED	(1)
+
+extern int lll_unlock_wake_cb (int *__futex) attribute_hidden;
+
+/* The states of a lock are:
+    0  -  untaken
+    1  -  taken by one user
+   >1  -  taken by more users */
+
+#define lll_trylock(lock)	lll_mutex_trylock(lock)
+#define lll_lock(lock)		lll_mutex_lock(lock)
+#define lll_unlock(lock)	lll_mutex_unlock(lock)
+#define lll_islocked(lock)	lll_mutex_islocked(lock)
+
+/* The kernel notifies a process which uses CLONE_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);		\
+    }						\
+  } 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;						\
+  })
+
+#define lll_wake_tid(tid) {			\
+  do {						\
+    (tid) = 0;					\
+    lll_futex_wake(&(tid), 0x7fffffff);		\
+  } while (0)
+
+
+/* Decrement *futex if it is > 0, and return the old value */
+#define __lll_dec_if_positive(futex)					\
+  ({ int __val, __tmp;							\
+     __asm __volatile ("1:	lwarx	%0,0,%3\n"			\
+		       "	cmpwi	0,%0,0\n"			\
+		       "	addi	%1,%0,-1\n"			\
+		       "	ble	2f\n"				\
+		       "	stwcx.	%1,0,%3\n"			\
+		       "	bne-	1b\n"				\
+		       "2:	" __lll_acq_instr			\
+		       : "=&b" (__val), "=&r" (__tmp), "=m" (*futex)	\
+		       : "r" (futex), "2" (*futex)			\
+		       : "cr0");					\
+     __val;								\
+  })
+
+
+/* Conditional variable handling.  */
+
+extern void __lll_cond_wait (pthread_cond_t *cond)
+     attribute_hidden;
+extern int __lll_cond_timedwait (pthread_cond_t *cond,
+				 const struct timespec *abstime)
+     attribute_hidden;
+extern void __lll_cond_wake (pthread_cond_t *cond)
+     attribute_hidden;
+extern void __lll_cond_broadcast (pthread_cond_t *cond)
+     attribute_hidden;
+
+#define lll_cond_wait(cond) \
+  __lll_cond_wait (cond)
+#define lll_cond_timedwait(cond, abstime) \
+  __lll_cond_timedwait (cond, abstime)
+#define lll_cond_wake(cond) \
+  __lll_cond_wake (cond)
+#define lll_cond_broadcast(cond) \
+  __lll_cond_broadcast (cond)
+
+#endif	/* lowlevellock.h */
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevelmutex.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevelmutex.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevelmutex.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/lowlevelmutex.c	Sat Mar 08 12:59:38 2003
@@ -0,0 +1,20 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* Nothing needed here in fact. */
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h	Fri Mar 07 14:48:58 2003
@@ -0,0 +1,101 @@
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Franz Sirl <Franz Sirl-kernel lauterbach 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 <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if !defined NOT_IN_libc || defined IS_IN_libpthread
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args)				\
+  .section ".text";							\
+  ENTRY (name)								\
+    SINGLE_THREAD_P;							\
+    bne- .Lpseudo_cancel;						\
+    DO_CALL (SYS_ify (syscall_name));					\
+    PSEUDO_RET;								\
+  .Lpseudo_cancel:							\
+    stwu 1,-48(1);							\
+    mflr 9;								\
+    stw 9,52(1);							\
+    DOCARGS_##args;	/* save syscall args around CENABLE.  */	\
+    CENABLE;								\
+    stw 3,16(1);	/* store CENABLE return value (MASK).  */	\
+    UNDOCARGS_##args;	/* restore syscall args.  */			\
+    DO_CALL (SYS_ify (syscall_name));					\
+    mfcr 0;		/* save CR/R3 around CDISABLE.  */		\
+    stw 3,8(1);								\
+    stw 0,12(1);							\
+    lwz 3,16(1);	/* pass MASK to CDISABLE.  */			\
+    CDISABLE;								\
+    lwz 4,52(1);							\
+    lwz 0,12(1);	/* restore CR/R3. */				\
+    lwz 3,8(1);								\
+    mtlr 4;								\
+    mtcr 0;								\
+    addi 1,1,48;
+
+# define DOCARGS_0
+# define UNDOCARGS_0
+
+# define DOCARGS_1	stw 3,20(1); DOCARGS_0
+# define UNDOCARGS_1	lwz 3,20(1); UNDOCARGS_0
+
+# define DOCARGS_2	stw 4,24(1); DOCARGS_1
+# define UNDOCARGS_2	lwz 4,24(1); UNDOCARGS_1
+
+# define DOCARGS_3	stw 5,28(1); DOCARGS_2
+# define UNDOCARGS_3	lwz 5,28(1); UNDOCARGS_2
+
+# define DOCARGS_4	stw 6,32(1); DOCARGS_3
+# define UNDOCARGS_4	lwz 6,32(1); UNDOCARGS_3
+
+# define DOCARGS_5	stw 7,36(1); DOCARGS_4
+# define UNDOCARGS_5	lwz 7,36(1); UNDOCARGS_4
+
+# define DOCARGS_6	stw 8,40(1); DOCARGS_5
+# define UNDOCARGS_6	lwz 8,40(1); UNDOCARGS_5
+
+# ifdef IS_IN_libpthread
+#  define CENABLE	bl JUMPTARGET(__pthread_enable_asynccancel)
+#  define CDISABLE	bl JUMPTARGET(__pthread_disable_asynccancel)
+# else
+#  define CENABLE	bl JUMPTARGET(__libc_enable_asynccancel)
+#  define CDISABLE	bl JUMPTARGET(__libc_disable_asynccancel)
+# endif
+
+# ifndef __ASSEMBLER__
+#  define SINGLE_THREAD_P						\
+  __builtin_expect (THREAD_GETMEM (THREAD_SELF, header.data.multiple_threads) \
+		    == 0, 1)
+# else
+#  define SINGLE_THREAD_P						\
+  lwz 10,MULTIPLE_THREADS_OFFSET(2);					\
+  cmpwi 10,0
+# endif
+
+#elif !defined __ASSEMBLER__
+
+/* This code should never be used but we define it anyhow.  */
+# define SINGLE_THREAD_P (1)
+
+#endif
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S libc/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S	Fri Mar 07 09:14:43 2003
@@ -0,0 +1,35 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep-cancel.h>
+#define _ERRNO_H	1
+#include <bits/errno.h>
+#include <kernel-features.h>
+
+/* Clone the calling process, but without copying the whole address space.
+   The calling process is suspended until the new process exits or is
+   replaced by a call to `execve'.  Return -1 for errors, 0 to the new process,
+   and the process ID of the new process to the old process.  */
+
+ENTRY (__vfork)
+	DO_CALL (SYS_ify (vfork));
+	PSEUDO_RET
+
+PSEUDO_END (__vfork)
+
+weak_alias (__vfork, vfork)
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/pthread_once.c	Fri Mar 07 08:21:09 2003
@@ -0,0 +1,98 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include "pthreadP.h"
+#include <lowlevellock.h>
+
+
+unsigned long int __fork_generation attribute_hidden;
+
+
+static void
+clear_once_control (void *arg)
+{
+  pthread_once_t *once_control = (pthread_once_t *) arg;
+
+  *once_control = 0;
+  lll_futex_wake (once_control, INT_MAX);
+}
+
+
+int __pthread_once (pthread_once_t *once_control, void (*init_routine) (void))
+{
+  for (;;) {
+    int oldval;
+    int newval;
+    int tmp;
+
+    /* Pseudo code:
+       newval = __fork_generation | 1;
+       oldval = *once_control;
+       if ((oldval & 2) == 0) {
+	 *once_control = newval;
+       }
+       Do this atomically.
+    */
+    newval = __fork_generation | 1;
+    __asm __volatile ( "1:	lwarx	%0,0,%3\n"
+		       "	andi.	%1,%0,2\n"
+		       "	bne	2f\n"
+		       "	stwcx.	%4,0,%3\n"
+		       "2:	isync"
+		       : "=&r" (oldval), "=&r" (tmp), "=m" (*once_control)
+		       : "r" (once_control), "r" (newval), "m" (*once_control)
+		       : "cr0");
+
+    /* Check if the initializer has already been done.  */
+    if ((oldval & 2) != 0)
+      return 0;
+
+    /* Check if another thread already runs the initializer.	*/
+    if ((oldval & 1) == 0)
+      break;
+
+    /* Check whether the initializer execution was interrupted by a fork.  */
+    if (oldval != newval)
+      break;
+
+    /* Same generation, some other thread was faster. Wait.  */
+    lll_futex_wait (once_control, oldval);
+  }
+
+
+  /* This thread is the first here.  Do the initialization.
+     Register a cleanup handler so that in case the thread gets
+     interrupted the initialization can be restarted.  */
+  pthread_cleanup_push (clear_once_control, once_control);
+
+  init_routine ();
+
+  pthread_cleanup_pop (0);
+
+
+  /* Add one to *once_control to take the bottom 2 bits from 01 to 10.  */
+  __lll_add(once_control, 1);
+
+  /* Wake up all other threads.  */
+  lll_futex_wake (once_control, INT_MAX);
+
+  return 0;
+}
+weak_alias (__pthread_once, pthread_once)
+strong_alias (__pthread_once, __pthread_once_internal)
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_post.c	Mon Mar 10 12:57:46 2003
@@ -0,0 +1,45 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+#include <lowlevellock.h>
+
+#include <shlib-compat.h>
+
+int __new_sem_post (sem_t *sem)
+{
+  int *futex = (int *) sem;
+  int err, nr;
+
+  __asm __volatile(__lll_rel_instr ::: "memory");
+  nr = __lll_add(futex, 1);
+  err = lll_futex_wake(futex, nr);
+  if (err == 0)
+    return 0;
+  __set_errno(-err);
+  return -1;
+}
+versioned_symbol (libpthread, __new_sem_post, sem_post, GLIBC_2_1);
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_post, __old_sem_post)
+compat_symbol (libpthread, __old_sem_post, sem_post, GLIBC_2_0);
+#endif
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_timedwait.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_timedwait.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_timedwait.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_timedwait.c	Mon Mar 10 12:57:12 2003
@@ -0,0 +1,81 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+#include <lowlevellock.h>
+
+#include <shlib-compat.h>
+
+
+int sem_timedwait (sem_t *sem, const struct timespec *abstime)
+{
+  int *futex = (int *) sem;
+  int val;
+  int err;
+
+  if (*futex > 0) {
+    val = __lll_dec_if_positive(futex);
+    if (val > 0)
+      return 0;
+  }
+
+  err = -EINVAL;
+  if (abstime->tv_nsec >= 1000000000)
+    goto error_return;
+
+  do {
+    struct timeval tv;
+    struct timespec rt;
+    int sec, nsec;
+
+    /* Get the current time.  */
+    gettimeofday(&tv, NULL);
+
+    /* Compute relative timeout.  */
+    sec = abstime->tv_sec - tv.tv_sec;
+    nsec = abstime->tv_nsec - tv.tv_usec * 1000;
+    if (nsec < 0) {
+      nsec += 1000000000;
+      --sec;
+    }
+
+    /* Already timed out?  */
+    err = -ETIMEDOUT;
+    if (sec < 0)
+      goto error_return;
+
+    /* Do wait.  */
+    rt.tv_sec = sec;
+    rt.tv_nsec = nsec;
+    err = lll_futex_timed_wait (futex, 0, &rt);
+    if (err != 0 && err != -EWOULDBLOCK)
+      goto error_return;
+
+    val = __lll_dec_if_positive(futex);
+  } while (val <= 0);
+
+  return 0;
+
+ error_return:
+  __set_errno(-err);
+  return -1;
+}
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_trywait.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_trywait.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_trywait.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_trywait.c	Thu Mar 06 22:54:29 2003
@@ -0,0 +1,47 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+#include <lowlevellock.h>
+
+#include <shlib-compat.h>
+
+
+int __new_sem_trywait (sem_t *sem)
+{
+  int *futex = (int *) sem;
+  int val;
+
+  if (*futex > 0) {
+    val = __lll_dec_if_positive(futex);
+    if (val > 0)
+      return 0;
+  }
+
+  __set_errno (EAGAIN);
+  return -1;
+}
+versioned_symbol (libpthread, __new_sem_trywait, sem_trywait, GLIBC_2_1);
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_trywait, __old_sem_trywait)
+compat_symbol (libpthread, __old_sem_trywait, sem_trywait, GLIBC_2_0);
+#endif
diff -urN nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_wait.c libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_wait.c
--- nptl-0.28/nptl/sysdeps/unix/sysv/linux/powerpc/sem_wait.c	Thu Jan 01 10:00:00 1970
+++ libc/nptl/sysdeps/unix/sysv/linux/powerpc/sem_wait.c	Thu Mar 06 22:58:38 2003
@@ -0,0 +1,53 @@
+/* Copyright (C) 2003 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <sysdep.h>
+#include <internaltypes.h>
+#include <semaphore.h>
+#include <lowlevellock.h>
+
+#include <shlib-compat.h>
+
+
+int __new_sem_wait (sem_t *sem)
+{
+  int *futex = (int *) sem;
+  int val;
+  int err;
+
+  do {
+    if (*futex > 0) {
+      val = __lll_dec_if_positive(futex);
+      if (val > 0)
+	return 0;
+    }
+
+    err = lll_futex_wait(futex, 0);
+  } while (err == 0 || err == -EWOULDBLOCK);
+
+  __set_errno(-err);
+  return -1;
+}
+
+versioned_symbol (libpthread, __new_sem_wait, sem_wait, GLIBC_2_1);
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+strong_alias (__new_sem_wait, __old_sem_wait)
+compat_symbol (libpthread, __old_sem_wait, sem_wait, GLIBC_2_0);
+#endif





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