Delete old versions of GCC.

Change-Id: I710f125d905290e1024cbd67f48299861790c66c

22 files changed, 0 insertions, 1326 deletions

diff --git a/gcc-4.4.3/libjava/sysdep/alpha/locks.h b/gcc-4.4.3/libjava/sysdep/alpha/locks.h
deleted file mode 100644
index a6b439408..000000000
--- a/gcc-4.4.3/libjava/sysdep/alpha/locks.h
+++ /dev/null
@@ -1,69 +0,0 @@
-// locks.h - Thread synchronization primitives. Alpha implementation.
-
-/* Copyright (C) 2002  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		  			      obj_addr_t old,
-					      obj_addr_t new_val) 
-{
-  unsigned long oldval;
-  char result;
-  __asm__ __volatile__(
-      "1:ldq_l %0, %1\n\t" \
-      "cmpeq %0, %5, %2\n\t" \
-      "beq %2, 2f\n\t" \
-      "mov %3, %0\n\t" \
-      "stq_c %0, %1\n\t" \
-      "bne %0, 2f\n\t" \
-      "br 1b\n\t" \
-      "2:mb"
-	      : "=&r"(oldval), "=m"(*addr), "=&r"(result)
-	      : "r" (new_val), "m"(*addr), "r"(old) : "memory");
-  return (bool) result;
-}
-
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__("mb" : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-		  				     obj_addr_t old,
-						     obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__("mb" : : : "memory");
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__("wmb" : : : "memory");
-}
-
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/arm/backtrace.h b/gcc-4.4.3/libjava/sysdep/arm/backtrace.h
deleted file mode 100644
index ee1bd99f8..000000000
--- a/gcc-4.4.3/libjava/sysdep/arm/backtrace.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// backtrace.h - Fallback backtrace implementation. ARM implementation.
-
-/* Copyright (C) 2005, 2006  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_BACKTRACE_H__
-#define __SYSDEP_BACKTRACE_H__
-
-#include <java-stack.h>
-
-extern "C"
-{
-/* Unwind through the call stack calling TRACE_FN with STATE for every stack
-   frame.  Returns the reason why the unwinding was stopped.  */
-#ifdef __ARM_EABI_UNWINDER__
-
-#define _Unwind_FindEnclosingFunction(PC) \
-  (PC)
-
-_Unwind_Reason_Code
-fallback_backtrace (_Unwind_Reason_Code (*)(struct _Unwind_Context*, void*), _Jv_UnwindState *)
-#else
-_Unwind_Reason_Code
-fallback_backtrace (_Unwind_Trace_Fn, _Jv_UnwindState *)
-#endif
-{
-  return _URC_NO_REASON;
-}
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/arm/locks.h b/gcc-4.4.3/libjava/sysdep/arm/locks.h
deleted file mode 100644
index 1f7763de3..000000000
--- a/gcc-4.4.3/libjava/sysdep/arm/locks.h
+++ /dev/null
@@ -1,79 +0,0 @@
-// locks.h - Thread synchronization primitives. ARM implementation.
-
-/* Copyright (C) 2007  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-/* Atomic compare and exchange.  These sequences are not actually
-   atomic; there is a race if *ADDR != OLD_VAL and we are preempted
-   between the two swaps.  However, they are very close to atomic, and
-   are the best that a pre-ARMv6 implementation can do without
-   operating system support.  LinuxThreads has been using these
-   sequences for many years.  */
-
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old_val,
-		 obj_addr_t new_val)
-{
-  volatile obj_addr_t result, tmp;
-  __asm__ ("\n"
-	   "0:	ldr	%[tmp],[%[addr]]\n"
-	   "	cmp	%[tmp],%[old_val]\n"
-	   "	movne	%[result],#0\n"
-	   "	bne	1f\n"
-	   "	swp	%[result],%[new_val],[%[addr]]\n"
-	   "	cmp	%[tmp],%[result]\n"
-	   "	swpne	%[tmp],%[result],[%[addr]]\n"
-	   "	bne	0b\n"
-	   "	mov	%[result],#1\n"
-	   "1:"
-	   : [result] "=&r" (result), [tmp] "=&r" (tmp)
-	   : [addr] "r" (addr), [new_val] "r" (new_val), [old_val] "r" (old_val)
-	   : "cc", "memory");
-
-  return result;
-}
-
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__("" : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-		  				     obj_addr_t old,
-						     obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__("" : : : "memory");
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__("" : : : "memory");
-}
-
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/descriptor-n.h b/gcc-4.4.3/libjava/sysdep/descriptor-n.h
deleted file mode 100644
index d640405e2..000000000
--- a/gcc-4.4.3/libjava/sysdep/descriptor-n.h
+++ /dev/null
@@ -1,3 +0,0 @@
-// Given a function pointer, return the code address.
-
-#define UNWRAP_FUNCTION_DESCRIPTOR(X)  (X)
diff --git a/gcc-4.4.3/libjava/sysdep/descriptor-y.h b/gcc-4.4.3/libjava/sysdep/descriptor-y.h
deleted file mode 100644
index ca615505d..000000000
--- a/gcc-4.4.3/libjava/sysdep/descriptor-y.h
+++ /dev/null
@@ -1,5 +0,0 @@
-// Given a function pointer, return the code address.
-
-// The function descriptor is actually multiple words,
-// but we don't care about anything except the first.
-#define UNWRAP_FUNCTION_DESCRIPTOR(X)  (*(void **)(X))
diff --git a/gcc-4.4.3/libjava/sysdep/generic/backtrace.h b/gcc-4.4.3/libjava/sysdep/generic/backtrace.h
deleted file mode 100644
index 21138aef7..000000000
--- a/gcc-4.4.3/libjava/sysdep/generic/backtrace.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// backtrace.h - Fallback backtrace implementation. default implementation.
-
-/* Copyright (C) 2005, 2006  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_BACKTRACE_H__
-#define __SYSDEP_BACKTRACE_H__
-
-#include <java-stack.h>
-
-/* Unwind through the call stack calling TRACE_FN with STATE for every stack
-   frame.  Returns the reason why the unwinding was stopped.  */
-_Unwind_Reason_Code
-fallback_backtrace (_Unwind_Trace_Fn, _Jv_UnwindState *)
-{
-  return _URC_NO_REASON;
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/generic/locks.h b/gcc-4.4.3/libjava/sysdep/generic/locks.h
deleted file mode 100644
index fce6c7166..000000000
--- a/gcc-4.4.3/libjava/sysdep/generic/locks.h
+++ /dev/null
@@ -1,11 +0,0 @@
-// locks.h - Thread synchronization primitives. Generic implementation.
-
-/* Copyright (C) 2002  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#error Thread synchronization primitives not implemented for this platform.
diff --git a/gcc-4.4.3/libjava/sysdep/i386/backtrace.h b/gcc-4.4.3/libjava/sysdep/i386/backtrace.h
deleted file mode 100644
index 63b327461..000000000
--- a/gcc-4.4.3/libjava/sysdep/i386/backtrace.h
+++ /dev/null
@@ -1,113 +0,0 @@
-// backtrace.h - Fallback backtrace implementation. i386 implementation.
-
-/* Copyright (C) 2005, 2006  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_BACKTRACE_H__
-#define __SYSDEP_BACKTRACE_H__
-
-#include <java-stack.h>
-
-extern int main (int, char **);
-
-/* The context used to keep track of our position while unwinding through
-   the call stack.  */
-struct _Unwind_Context
-{
-  /* The starting address of the method.  */
-  _Jv_uintptr_t meth_addr;
-
-  /* The return address in the method.  */
-  _Jv_uintptr_t ret_addr;
-};
-
-#ifdef SJLJ_EXCEPTIONS
-
-#undef _Unwind_GetIPInfo
-#define _Unwind_GetIPInfo(ctx,ip_before_insn) \
-  (*(ip_before_insn) = 1, (ctx)->ret_addr)
-
-#undef _Unwind_GetRegionStart
-#define _Unwind_GetRegionStart(ctx) \
-  ((ctx)->meth_addr)
-
-#undef _Unwind_Backtrace
-#define _Unwind_Backtrace(trace_fn,state_ptr) \
-  (fallback_backtrace (trace_fn, state_ptr))
-
-#endif /* SJLJ_EXCEPTIONS */
-
-/* Unwind through the call stack calling TRACE_FN with STATE for each stack
-   frame.  Returns the reason why the unwinding was stopped.  */
-_Unwind_Reason_Code
-fallback_backtrace (_Unwind_Trace_Fn trace_fn, _Jv_UnwindState *state)
-{
-  register _Jv_uintptr_t *_ebp __asm__ ("ebp");
-  register _Jv_uintptr_t _esp __asm__ ("esp");
-  _Jv_uintptr_t rfp;
-  _Unwind_Context ctx;
-
-  for (rfp = *_ebp; rfp; rfp = *(_Jv_uintptr_t *)rfp)
-    {
-      /* Sanity checks to eliminate dubious-looking frame pointer chains.
-         The frame pointer should be a 32-bit word-aligned stack address.
-         Since the stack grows downwards on x86, the frame pointer must have
-         a value greater than the current value of the stack pointer, it
-         should not be below the supposed next frame pointer and it should
-         not be too far off from the supposed next frame pointer.  */
-      int diff = *(_Jv_uintptr_t *)rfp - rfp;
-      if ((rfp & 0x00000003) != 0 || rfp < _esp
-          || diff > 4 * 1024 || diff < 0)
-        break;
-
-      /* Get the return address in the calling function.  This is stored on
-         the stack just before the value of the old frame pointer.  */
-      ctx.ret_addr = *(_Jv_uintptr_t *)(rfp + sizeof (_Jv_uintptr_t));
-
-      /* Try to locate a "pushl %ebp; movl %esp, %ebp" function prologue
-         by scanning backwards at even addresses below the return address.
-         This instruction sequence is encoded either as 0x55 0x89 0xE5 or as
-         0x55 0x8B 0xEC.  We give up if we do not find this sequence even
-         after scanning 1024K of memory.
-         FIXME: This is not robust and will probably give us false positives,
-         but this is about the best we can do if we do not have DWARF-2 unwind
-         information based exception handling.  */
-      ctx.meth_addr = (_Jv_uintptr_t)NULL;
-      _Jv_uintptr_t scan_addr = (ctx.ret_addr & 0xFFFFFFFE) - 2;
-      _Jv_uintptr_t limit_addr
-        = (scan_addr > 1024 * 1024) ? (scan_addr - 1024 * 1024) : 2;
-      for ( ; scan_addr >= limit_addr; scan_addr -= 2)
-        {
-          unsigned char *scan_bytes = (unsigned char *)scan_addr;
-          if (scan_bytes[0] == 0x55
-              && ((scan_bytes[1] == 0x89 && scan_bytes[2] == 0xE5)
-                  || (scan_bytes[1] == 0x8B && scan_bytes[2] == 0xEC)))
-            {
-              ctx.meth_addr = scan_addr;
-              break;
-            }
-        }
-
-      /* Now call the unwinder callback function. */
-      if (trace_fn != NULL)
-        (*trace_fn) (&ctx, state);
-
-      /* No need to unwind beyond _Jv_RunMain(), _Jv_ThreadStart or
-         main().  */
-      void *jv_runmain
-        = (void *)(void (*)(JvVMInitArgs *, jclass, const char *, int,
-                            const char **, bool))_Jv_RunMain;
-      if (ctx.meth_addr == (_Jv_uintptr_t)jv_runmain
-          || ctx.meth_addr == (_Jv_uintptr_t)_Jv_ThreadStart
-          || (ctx.meth_addr - (_Jv_uintptr_t)main) < 16)
-        break;
-    }
-
-  return _URC_NO_REASON;
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/i386/locks.h b/gcc-4.4.3/libjava/sysdep/i386/locks.h
deleted file mode 100644
index 9d130b0f5..000000000
--- a/gcc-4.4.3/libjava/sysdep/i386/locks.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* locks.h - Thread synchronization primitives. X86/x86-64 implementation.
-
-   Copyright (C) 2002  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old,
-		 obj_addr_t new_val)
-{
-  char result;
-#ifdef __x86_64__
-  __asm__ __volatile__("lock; cmpxchgq %2, %0; setz %1"
-	      : "=m"(*(addr)), "=q"(result)
-	      : "r" (new_val), "a"(old), "m"(*addr)
-	      : "memory");
-#else
-  __asm__ __volatile__("lock; cmpxchgl %2, %0; setz %1"
-		       : "=m"(*addr), "=q"(result)
-		       : "r" (new_val), "a"(old), "m"(*addr)
-		       : "memory");
-#endif
-  return (bool) result;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-// On X86/x86-64, the hardware shouldn't reorder reads and writes,
-// so we just have to convince gcc not to do it either.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__(" " : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-			 obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-// On X86/x86-64, the hardware ensures that reads are properly ordered.
-inline static void
-read_barrier()
-{
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  /* x86-64/X86 does not reorder writes. We just need to ensure that
-     gcc also doesn't.  */
-  __asm__ __volatile__(" " : : : "memory");
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/ia64/locks.h b/gcc-4.4.3/libjava/sysdep/ia64/locks.h
deleted file mode 100644
index 1a861b2e3..000000000
--- a/gcc-4.4.3/libjava/sysdep/ia64/locks.h
+++ /dev/null
@@ -1,61 +0,0 @@
-// locks.h - Thread synchronization primitives. IA64 implementation.
-
-/* Copyright (C) 2002  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-#include <ia64intrin.h>
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-	 				      obj_addr_t old,
-					      obj_addr_t new_val) 
-{
-  return __sync_bool_compare_and_swap (addr, old, new_val);
-}
-
-// The fact that *addr is volatile should cause the compiler to
-// automatically generate an st8.rel.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__("" : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-	 				             obj_addr_t old,
-						     obj_addr_t new_val) 
-{
-  register unsigned long ar_ccv __asm__("ar.ccv") = old;
-  unsigned long out;
-  __asm__ __volatile__("cmpxchg8.rel %0=%1,%2,%4"
-	      : "=r"(out), "=m"(*addr)
-	      : "r"(new_val), "m"(*addr), "d"(ar_ccv) : "memory");
-  return (out == old);
-}
-
-inline static void
-read_barrier()
-{
-  __sync_synchronize ();
-}
-
-inline static void
-write_barrier()
-{
-  __sync_synchronize ();
-}
-
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/m68k/locks.h b/gcc-4.4.3/libjava/sysdep/m68k/locks.h
deleted file mode 100644
index d70757a8c..000000000
--- a/gcc-4.4.3/libjava/sysdep/m68k/locks.h
+++ /dev/null
@@ -1,72 +0,0 @@
-// locks.h - Thread synchronization primitives. m68k implementation.
-
-/* Copyright (C) 2006  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-/* Integer type big enough for object address.  */
-typedef size_t obj_addr_t __attribute__ ((aligned (4)));
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-static inline bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old, obj_addr_t new_val)
-{
-  char result;
-  __asm__ __volatile__("cas.l %2,%3,%0; seq %1"
-	      	: "+m" (*addr), "=d" (result), "+d" (old)
-		: "d" (new_val)
-		: "memory");
-  return (bool) result;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-// On m68k, the hardware shouldn't reorder reads and writes,
-// so we just have to convince gcc not to do it either.
-static inline void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__(" " : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-static inline bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-			 obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-// On m68k, the hardware ensures that reads are properly ordered.
-static inline void
-read_barrier(void)
-{
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-static inline void
-write_barrier(void)
-{
-  // m68k does not reorder writes. We just need to ensure that gcc also doesn't.
-  __asm__ __volatile__(" " : : : "memory");
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/mips/locks.h b/gcc-4.4.3/libjava/sysdep/mips/locks.h
deleted file mode 100644
index c8e30cf68..000000000
--- a/gcc-4.4.3/libjava/sysdep/mips/locks.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// locks.h - Thread synchronization primitives. MIPS implementation.
-
-/* Copyright (C) 2003  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-/* Integer type big enough for object address.	*/
-typedef unsigned obj_addr_t __attribute__((__mode__(__pointer__)));
-
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-                 obj_addr_t old,
-                 obj_addr_t new_val)
-{
-  return __sync_bool_compare_and_swap(addr, old, new_val);
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __sync_synchronize();
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-			 obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return __sync_bool_compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-// On X86, the hardware ensures that reads are properly ordered.
-inline static void
-read_barrier()
-{
-  __sync_synchronize();
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  __sync_synchronize();
-}
-
-#endif   // __SYSDEP_LOCKS_H__
diff --git a/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa32-hpux.h b/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa32-hpux.h
deleted file mode 100644
index 6000edb52..000000000
--- a/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa32-hpux.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* descriptor-pa32-hpux.h - Given a function pointer, extract and return the
-   actual code address of the corresponding function.
-
-   This is done by checking if the plabel bit is set. If it's not set,
-   return the function pointer.  If it's set, mask it off and extract
-   the address from the function descriptor.  This address may point
-   to an export stub.  If so, extract the branch target from the stub
-   and return it.  Otherwise, the address from the function descriptor
-   is returned.
-
-   Copyright (C) 2006  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#define UNWRAP_FUNCTION_DESCRIPTOR pa_unwrap_function_descriptor
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Extract bit field from word using HP's numbering (MSB = 0).  */
-#define GET_FIELD(X, FROM, TO)					\
-  ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
-
-static inline int
-sign_extend (int x, int len)
-{
-  int signbit = (1 << (len - 1));
-  int mask = (signbit << 1) - 1;
-  return ((x & mask) ^ signbit) - signbit;
-}
-
-/* Extract a 17-bit signed constant from branch instructions.  */
-static inline int
-extract_17 (unsigned word)
-{
-  return sign_extend (GET_FIELD (word, 19, 28)
-		      | GET_FIELD (word, 29, 29) << 10
-		      | GET_FIELD (word, 11, 15) << 11
-		      | (word & 0x1) << 16, 17);
-}
-
-/* Extract a 22-bit signed constant from branch instructions.  */
-static inline int
-extract_22 (unsigned word)
-{
-  return sign_extend (GET_FIELD (word, 19, 28)
-		      | GET_FIELD (word, 29, 29) << 10
-		      | GET_FIELD (word, 11, 15) << 11
-		      | GET_FIELD (word, 6, 10) << 16
-		      | (word & 0x1) << 21, 22);
-}
-
-static void *
-pa_unwrap_function_descriptor (void *addr)
-{
-  unsigned int *tmp_addr;
-
-  /* Check if plabel bit is set in function pointer.  */
-  if (!((unsigned int) addr & 2))
-    return addr;
-
-  tmp_addr = *(unsigned int **) ((unsigned int) addr & ~3);
-
-  /* If TMP_ADDR points to an export stub, adjust it so that it points
-     to the branch target of the stub.  */
-  if ((*tmp_addr & 0xffe0e002) == 0xe8400000		/* bl x,r2 */
-      && *(tmp_addr + 1) == 0x08000240			/* nop */
-      && *(tmp_addr + 2) == 0x4bc23fd1			/* ldw -18(sp),rp */
-      && *(tmp_addr + 3) == 0x004010a1			/* ldsid (rp),r1 */
-      && *(tmp_addr + 4) == 0x00011820			/* mtsp r1,sr0 */
-      && *(tmp_addr + 5) == 0xe0400002)			/* be,n 0(sr0,rp) */
-    /* Extract target address from PA 1.x 17-bit branch.  */
-    tmp_addr += extract_17 (*tmp_addr) + 2;
-  else if ((*tmp_addr & 0xfc00e002) == 0xe800a000	/* b,l x,r2 */
-	   && *(tmp_addr + 1) == 0x08000240		/* nop */
-	   && *(tmp_addr + 2) == 0x4bc23fd1		/* ldw -18(sp),rp */
-	   && *(tmp_addr + 3) == 0xe840d002)		/* bve,n (rp) */
-    /* Extract target address from PA 2.0 22-bit branch.  */
-    tmp_addr += extract_22 (*tmp_addr) + 2;
-
-  return (void *) tmp_addr;
-}
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa64-hpux.h b/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa64-hpux.h
deleted file mode 100644
index bc6af6b87..000000000
--- a/gcc-4.4.3/libjava/sysdep/pa/descriptor-pa64-hpux.h
+++ /dev/null
@@ -1,6 +0,0 @@
-// Given a function pointer, return the code address.
-// If the plabel bit is set, mask it off and return the code from the
-// first word of the function descriptor.  Otherwise, the function
-// pointer is the code address.
-
-#define UNWRAP_FUNCTION_DESCRIPTOR(X) *(void **)((unsigned long) (X) + 16)
diff --git a/gcc-4.4.3/libjava/sysdep/pa/descriptor.h b/gcc-4.4.3/libjava/sysdep/pa/descriptor.h
deleted file mode 100644
index d9888516d..000000000
--- a/gcc-4.4.3/libjava/sysdep/pa/descriptor.h
+++ /dev/null
@@ -1,7 +0,0 @@
-// Given a function pointer, return the code address.
-// If the plabel bit is set, mask it off and return the code from the
-// first word of the function descriptor.  Otherwise, the function
-// pointer is the code address.
-
-#define UNWRAP_FUNCTION_DESCRIPTOR(X) \
-  (((unsigned int)(X)) & 2 ? *(void **)(((unsigned int)(X)) & ~3) : (X))
diff --git a/gcc-4.4.3/libjava/sysdep/pa/locks.h b/gcc-4.4.3/libjava/sysdep/pa/locks.h
deleted file mode 100644
index 4edc2d716..000000000
--- a/gcc-4.4.3/libjava/sysdep/pa/locks.h
+++ /dev/null
@@ -1,110 +0,0 @@
-// locks.h - Thread synchronization primitives. PA-RISC implementation.
-
-/* Copyright (C) 2002, 2005  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-// Integer type big enough for object address.
-typedef size_t obj_addr_t;
-
-template<int _Inst>
-  struct _pa_jv_cas_lock
-  {
-    static volatile int _S_pa_jv_cas_lock;
-  };
-
-template<int _Inst>
-volatile int
-_pa_jv_cas_lock<_Inst>::_S_pa_jv_cas_lock __attribute__ ((aligned (16))) = 1;
-
-// Because of the lack of weak support when using the hpux som
-// linker, we explicitly instantiate the atomicity lock.
-template volatile int _pa_jv_cas_lock<0>::_S_pa_jv_cas_lock;
-
-// Atomically replace *addr by new_val if it was initially equal to old_val.
-// Return true if the comparison is successful.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-// The following implementation is atomic but it can deadlock
-// (e.g., if a thread dies holding the lock).
-inline static bool
-__attribute__ ((__unused__))
-compare_and_swap(volatile obj_addr_t *addr,
-	 	 obj_addr_t old_val,
-		 obj_addr_t new_val) 
-{
-  bool result;
-  int tmp;
-  volatile int& lock = _pa_jv_cas_lock<0>::_S_pa_jv_cas_lock;
-
-  __asm__ __volatile__ ("ldcw 0(%1),%0\n\t"
-			"cmpib,<>,n 0,%0,.+20\n\t"
-			"ldw 0(%1),%0\n\t"
-			"cmpib,= 0,%0,.-4\n\t"
-			"nop\n\t"
-			"b,n .-20"
-			: "=&r" (tmp)
-			: "r" (&lock)
-			: "memory");
-
-  if (*addr != old_val)
-    result = false;
-  else
-    {
-      *addr = new_val;
-      result = true;
-    }
-
-  /* Reset lock with PA 2.0 "ordered" store.  */
-  __asm__ __volatile__ ("stw,ma %1,0(%0)"
-			: : "r" (&lock), "r" (tmp) : "memory");
-
-  return result;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__(" " : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-	 				             obj_addr_t old,
-						     obj_addr_t new_val) 
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__(" " : : : "memory");
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__(" " : : : "memory");
-}
-
-#endif
-
diff --git a/gcc-4.4.3/libjava/sysdep/powerpc/descriptor.h b/gcc-4.4.3/libjava/sysdep/powerpc/descriptor.h
deleted file mode 100644
index 51296c222..000000000
--- a/gcc-4.4.3/libjava/sysdep/powerpc/descriptor.h
+++ /dev/null
@@ -1,9 +0,0 @@
-// Given a function pointer, return the code address.
-
-#ifdef _CALL_AIX
-// The function descriptor is actually multiple words,
-// but we don't care about anything except the first.
-# define UNWRAP_FUNCTION_DESCRIPTOR(X)  (*(void **)(X))
-#else
-# define UNWRAP_FUNCTION_DESCRIPTOR(X)  (X)
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/powerpc/locks.h b/gcc-4.4.3/libjava/sysdep/powerpc/locks.h
deleted file mode 100644
index 2e9eb0eb3..000000000
--- a/gcc-4.4.3/libjava/sysdep/powerpc/locks.h
+++ /dev/null
@@ -1,97 +0,0 @@
-// locks.h - Thread synchronization primitives. PowerPC implementation.
-
-/* Copyright (C) 2002,2008  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-#ifdef __LP64__
-#define _LARX "ldarx "
-#define _STCX "stdcx. "
-#else
-#define _LARX "lwarx "
-#ifdef __PPC405__
-#define _STCX "sync; stwcx. "
-#else
-#define _STCX "stwcx. "
-#endif
-#endif
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-inline static bool
-compare_and_swap (volatile obj_addr_t *addr, obj_addr_t old,
-		  obj_addr_t new_val) 
-{
-  obj_addr_t ret;
-
-  __asm__ __volatile__ (
-	   "      " _LARX "%0,0,%1 \n"
-	   "      xor. %0,%3,%0\n"
-	   "      bne $+12\n"
-	   "      " _STCX "%2,0,%1\n"
-	   "      bne- $-16\n"
-	: "=&r" (ret)
-	: "r" (addr), "r" (new_val), "r" (old)
-	: "cr0", "memory");
-
-  /* This version of __compare_and_swap is to be used when acquiring
-     a lock, so we don't need to worry about whether other memory
-     operations have completed, but we do need to be sure that any loads
-     after this point really occur after we have acquired the lock.  */
-  __asm__ __volatile__ ("isync" : : : "memory");
-  return ret == 0;
-}
-
-inline static void
-release_set (volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__ ("sync" : : : "memory");
-  *addr = new_val;
-}
-
-inline static bool
-compare_and_swap_release (volatile obj_addr_t *addr, obj_addr_t old,
-			  obj_addr_t new_val)
-{
-  obj_addr_t ret;
-
-  __asm__ __volatile__ ("sync" : : : "memory");
-
-  __asm__ __volatile__ (
-	   "      " _LARX "%0,0,%1 \n"
-	   "      xor. %0,%3,%0\n"
-	   "      bne $+12\n"
-	   "      " _STCX "%2,0,%1\n"
-	   "      bne- $-16\n"
-	: "=&r" (ret)
-	: "r" (addr), "r" (new_val), "r" (old)
-	: "cr0", "memory");
-
-  return ret == 0;
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-inline static void
-read_barrier ()
-{
-  __asm__ __volatile__ ("isync" : : : "memory");
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier ()
-{
-  __asm__ __volatile__ ("sync" : : : "memory");
-}
-
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/s390/locks.h b/gcc-4.4.3/libjava/sysdep/s390/locks.h
deleted file mode 100644
index b0f318525..000000000
--- a/gcc-4.4.3/libjava/sysdep/s390/locks.h
+++ /dev/null
@@ -1,77 +0,0 @@
-// locks.h - Thread synchronization primitives. S/390 implementation.
-
-/* Copyright (C) 2002  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old, obj_addr_t new_val) 
-{
-  int result;
-
-  __asm__ __volatile__ (
-#ifndef __s390x__
-    "       cs  %1,%2,0(%3)\n"
-#else
-    "       csg %1,%2,0(%3)\n"
-#endif
-    "       ipm %0\n"
-    "       srl %0,28\n"
-    : "=&d" (result), "+d" (old)
-    : "d" (new_val), "a" (addr)
-    : "cc", "memory");
-
-  return result == 0;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__("bcr 15,0" : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-		  	 obj_addr_t old, obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__("bcr 15,0" : : : "memory");
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__("bcr 15,0" : : : "memory");
-}
-#endif
diff --git a/gcc-4.4.3/libjava/sysdep/sh/locks.h b/gcc-4.4.3/libjava/sysdep/sh/locks.h
deleted file mode 100644
index 9a152fb30..000000000
--- a/gcc-4.4.3/libjava/sysdep/sh/locks.h
+++ /dev/null
@@ -1,84 +0,0 @@
-// locks.h - Thread synchronization primitives. SuperH implementation.
-
-/* Copyright (C) 2002, 2007  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-static unsigned char __cas_lock = 0;
-
-inline static void
-__cas_start_atomic (void)
-{
-  unsigned int val;
-
-  do
-    __asm__ __volatile__ ("tas.b @%1; movt %0"
-			  : "=r" (val)
-			  : "r" (&__cas_lock)
-			  : "memory");
-  while (val == 0);
-}
-
-inline static void
-__cas_end_atomic (void)
-{
-  __asm__ __volatile__ (" " : : : "memory");
-  __cas_lock = 0;
-}
-
-inline static bool
-compare_and_swap (volatile obj_addr_t *addr, obj_addr_t old,
-		  obj_addr_t new_val)
-{
-  bool ret;
-
-  __cas_start_atomic ();
-  if (*addr != old)
-    ret = false;
-  else
-    {
-      *addr = new_val;
-      ret = true;
-    }
-  __cas_end_atomic ();
-
-  return ret;
-}
-
-inline static void
-release_set (volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__ (" " : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release (volatile obj_addr_t *addr, obj_addr_t old,
-			  obj_addr_t new_val)
-{
-  return compare_and_swap (addr, old, new_val);
-}
-
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__(" " : : : "memory");
-}
-
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__(" " : : : "memory");
-}
-
-#endif /* ! __SYSDEP_LOCKS_H__ */
diff --git a/gcc-4.4.3/libjava/sysdep/sparc/locks.h b/gcc-4.4.3/libjava/sysdep/sparc/locks.h
deleted file mode 100644
index 7c30d7c3b..000000000
--- a/gcc-4.4.3/libjava/sysdep/sparc/locks.h
+++ /dev/null
@@ -1,142 +0,0 @@
-// locks.h - Thread synchronization primitives. Sparc implementation.
-
-/* Copyright (C) 2002, 2007  Free Software Foundation
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-#ifdef __arch64__
-/* Sparc64 implementation, use cas instruction.  */
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old,
-		 obj_addr_t new_val)
-{
-  __asm__ __volatile__("casx [%2], %3, %0\n\t"
-		       "membar #StoreLoad | #StoreStore"
-		       : "=&r" (new_val)
-		       : "0" (new_val), "r" (addr), "r" (old)
-		       : "memory");
-
-  return (new_val == old) ? true : false;
-}
-
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__("membar #StoreStore | #LoadStore" : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr, obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__("membar #LoadLoad | #LoadStore" : : : "memory");
-}
-
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__("membar #StoreLoad | #StoreStore" : : : "memory");
-}
-#else
-/* Sparc32 implementation, use a spinlock.  */
-static unsigned char __cas_lock = 0;
-
-inline static void
-__cas_start_atomic(void)
-{
-  unsigned int tmp;
-  __asm__ __volatile__(
-"1:	ldstub	[%1], %0\n"
-"	orcc	%0, 0x0, %%g0\n"
-"	be	3f\n"
-"	 nop\n"
-"2:	ldub	[%1], %0\n"
-"	orcc	%0, 0x0, %%g0\n"
-"	bne	2b\n"
-"	 nop\n"
-"3:"	: "=&r" (tmp)
-	: "r" (&__cas_lock)
-	: "memory", "cc");
-}
-
-inline static void
-__cas_end_atomic(void)
-{
-  __asm__ __volatile__(
-  "stb %%g0, [%0]"
-  : /* no outputs */
-  : "r" (&__cas_lock)
-  : "memory");
-}
-
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old,
-		 obj_addr_t new_val)
-{
-  bool ret;
-
-  __cas_start_atomic ();
-  if (*addr != old)
-    {
-      ret = false;
-    }
-  else
-    {
-      *addr = new_val;
-      ret = true;
-    }
-  __cas_end_atomic ();
-
-  return ret;
-}
-
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  /* Technically stbar would be needed here but no sparc32
-     system actually requires it.  Also the stbar would mean
-     this code would not work on sparcv7 chips.  */
-  __asm__ __volatile__("" : : : "memory");
-  *(addr) = new_val;
-}
-
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr, obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-inline static void
-read_barrier()
-{
-  __asm__ __volatile__ ("" : : : "memory");
-}
-
-inline static void
-write_barrier()
-{
-  __asm__ __volatile__ ("" : : : "memory");
-}
-#endif /* __arch64__ */
-
-#endif /* ! __SYSDEP_LOCKS_H__ */
diff --git a/gcc-4.4.3/libjava/sysdep/x86-64/locks.h b/gcc-4.4.3/libjava/sysdep/x86-64/locks.h
deleted file mode 100644
index fdc0a3efb..000000000
--- a/gcc-4.4.3/libjava/sysdep/x86-64/locks.h
+++ /dev/null
@@ -1,83 +0,0 @@
-/* locks.h - Thread synchronization primitives. X86/x86-64 implementation.
-
-   Copyright (C) 2002  Free Software Foundation
-
-   Contributed by Bo Thorsen <bo@suse.de>.
-
-   This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
-details.  */
-
-#ifndef __SYSDEP_LOCKS_H__
-#define __SYSDEP_LOCKS_H__
-
-typedef size_t obj_addr_t;	/* Integer type big enough for object	*/
-				/* address.				*/
-
-// Atomically replace *addr by new_val if it was initially equal to old.
-// Return true if the comparison succeeded.
-// Assumed to have acquire semantics, i.e. later memory operations
-// cannot execute before the compare_and_swap finishes.
-inline static bool
-compare_and_swap(volatile obj_addr_t *addr,
-		 obj_addr_t old,
-		 obj_addr_t new_val)
-{
-  char result;
-#ifdef __x86_64__
-  __asm__ __volatile__("lock; cmpxchgq %2, %0; setz %1"
-	      : "=m"(*(addr)), "=q"(result)
-	      : "r" (new_val), "a"(old), "m"(*addr)
-	      : "memory");
-#else
-  __asm__ __volatile__("lock; cmpxchgl %2, %0; setz %1"
-		       : "=m"(*addr), "=q"(result)
-		       : "r" (new_val), "a"(old), "m"(*addr)
-		       : "memory");
-#endif
-  return (bool) result;
-}
-
-// Set *addr to new_val with release semantics, i.e. making sure
-// that prior loads and stores complete before this
-// assignment.
-// On X86/x86-64, the hardware shouldn't reorder reads and writes,
-// so we just have to convince gcc not to do it either.
-inline static void
-release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
-{
-  __asm__ __volatile__(" " : : : "memory");
-  *(addr) = new_val;
-}
-
-// Compare_and_swap with release semantics instead of acquire semantics.
-// On many architecture, the operation makes both guarantees, so the
-// implementation can be the same.
-inline static bool
-compare_and_swap_release(volatile obj_addr_t *addr,
-			 obj_addr_t old,
-			 obj_addr_t new_val)
-{
-  return compare_and_swap(addr, old, new_val);
-}
-
-// Ensure that subsequent instructions do not execute on stale
-// data that was loaded from memory before the barrier.
-// On X86/x86-64, the hardware ensures that reads are properly ordered.
-inline static void
-read_barrier()
-{
-}
-
-// Ensure that prior stores to memory are completed with respect to other
-// processors.
-inline static void
-write_barrier()
-{
-  /* x86-64/X86 does not reorder writes. We just need to ensure that
-     gcc also doesn't.  */
-  __asm__ __volatile__(" " : : : "memory");
-}
-#endif