Initial check-in of gcc 4.7.2.

Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365

40 files changed, 3633 insertions, 0 deletions

diff --git a/gcc-4.7/libgomp/config/bsd/proc.c b/gcc-4.7/libgomp/config/bsd/proc.c
new file mode 100644
index 000000000..ec16f2c89
--- /dev/null
+++ b/gcc-4.7/libgomp/config/bsd/proc.c
@@ -0,0 +1,114 @@
+/* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains system specific routines related to counting
+   online processors and dynamic load balancing.  It is expected that
+   a system may well want to write special versions of each of these.
+
+   The following implementation uses a mix of POSIX and BSD routines.  */
+
+#include "libgomp.h"
+#include <unistd.h>
+#include <stdlib.h>
+#ifdef HAVE_GETLOADAVG
+# ifdef HAVE_SYS_LOADAVG_H
+#  include <sys/loadavg.h>
+# endif
+#endif
+#ifdef HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
+
+static int
+get_num_procs (void)
+{
+#ifdef _SC_NPROCESSORS_ONLN
+  return sysconf (_SC_NPROCESSORS_ONLN);
+#elif defined HW_NCPU
+  int ncpus = 1;
+  size_t len = sizeof(ncpus);
+  sysctl((int[2]) {CTL_HW, HW_NCPU}, 2, &ncpus, &len, NULL, 0);
+  return ncpus;
+#else
+  return 0;
+#endif
+}
+
+/* At startup, determine the default number of threads.  It would seem
+   this should be related to the number of cpus online.  */
+
+void
+gomp_init_num_threads (void)
+{
+  int ncpus = get_num_procs ();
+
+  if (ncpus > 0)
+    gomp_global_icv.nthreads_var = ncpus;
+}
+
+/* When OMP_DYNAMIC is set, at thread launch determine the number of
+   threads we should spawn for this team.  */
+/* ??? I have no idea what best practice for this is.  Surely some
+   function of the number of processors that are *still* online and
+   the load average.  Here I use the number of processors online
+   minus the 15 minute load average.  */
+
+unsigned
+gomp_dynamic_max_threads (void)
+{
+  unsigned n_onln, loadavg;
+  unsigned nthreads_var = gomp_icv (false)->nthreads_var;
+
+  n_onln = get_num_procs ();
+  if (!n_onln || n_onln > nthreads_var)
+    n_onln = nthreads_var;
+
+  loadavg = 0;
+#ifdef HAVE_GETLOADAVG
+  {
+    double dloadavg[3];
+    if (getloadavg (dloadavg, 3) == 3)
+      {
+	/* Add 0.1 to get a kind of biased rounding.  */
+	loadavg = dloadavg[2] + 0.1;
+      }
+  }
+#endif
+
+  if (loadavg >= n_onln)
+    return 1;
+  else
+    return n_onln - loadavg;
+}
+
+int
+omp_get_num_procs (void)
+{
+  int ncpus = get_num_procs ();
+  if (ncpus <= 0)
+    ncpus = gomp_icv (false)->nthreads_var;
+  return ncpus;
+}
+
+ialias (omp_get_num_procs)
diff --git a/gcc-4.7/libgomp/config/linux/affinity.c b/gcc-4.7/libgomp/config/linux/affinity.c
new file mode 100644
index 000000000..7a904df94
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/affinity.c
@@ -0,0 +1,123 @@
+/* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011
+   Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a CPU affinity setting.  */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+#include "libgomp.h"
+#include "proc.h"
+#include <stdlib.h>
+#include <unistd.h>
+
+#ifdef HAVE_PTHREAD_AFFINITY_NP
+
+static unsigned int affinity_counter;
+
+void
+gomp_init_affinity (void)
+{
+  cpu_set_t cpuset, cpusetnew;
+  size_t idx, widx;
+  unsigned long cpus = 0;
+
+  if (pthread_getaffinity_np (pthread_self (), sizeof (cpuset), &cpuset))
+    {
+      gomp_error ("could not get CPU affinity set");
+      free (gomp_cpu_affinity);
+      gomp_cpu_affinity = NULL;
+      gomp_cpu_affinity_len = 0;
+      return;
+    }
+
+  CPU_ZERO (&cpusetnew);
+  if (gomp_cpu_affinity_len == 0)
+    {
+      unsigned long count = gomp_cpuset_popcount (&cpuset);
+      if (count >= 65536)
+	count = 65536;
+      gomp_cpu_affinity = malloc (count * sizeof (unsigned short));
+      if (gomp_cpu_affinity == NULL)
+	{
+	  gomp_error ("not enough memory to store CPU affinity list");
+	  return;
+	}
+      for (widx = idx = 0; widx < count && idx < 65536; idx++)
+	if (CPU_ISSET (idx, &cpuset))
+	  {
+	    cpus++;
+	    gomp_cpu_affinity[widx++] = idx;
+	  }
+    }
+  else
+    for (widx = idx = 0; idx < gomp_cpu_affinity_len; idx++)
+      if (gomp_cpu_affinity[idx] < CPU_SETSIZE
+	  && CPU_ISSET (gomp_cpu_affinity[idx], &cpuset))
+	{
+	  if (! CPU_ISSET (gomp_cpu_affinity[idx], &cpusetnew))
+	    {
+	      cpus++;
+	      CPU_SET (gomp_cpu_affinity[idx], &cpusetnew);
+	    }
+	  gomp_cpu_affinity[widx++] = gomp_cpu_affinity[idx];
+	}
+
+  if (widx == 0)
+    {
+      gomp_error ("no CPUs left for affinity setting");
+      free (gomp_cpu_affinity);
+      gomp_cpu_affinity = NULL;
+      gomp_cpu_affinity_len = 0;
+      return;
+    }
+
+  gomp_cpu_affinity_len = widx;
+  if (cpus < gomp_available_cpus)
+    gomp_available_cpus = cpus;
+  CPU_ZERO (&cpuset);
+  CPU_SET (gomp_cpu_affinity[0], &cpuset);
+  pthread_setaffinity_np (pthread_self (), sizeof (cpuset), &cpuset);
+  affinity_counter = 1;
+}
+
+void
+gomp_init_thread_affinity (pthread_attr_t *attr)
+{
+  unsigned int cpu;
+  cpu_set_t cpuset;
+
+  cpu = __atomic_fetch_add (&affinity_counter, 1, MEMMODEL_RELAXED);
+  cpu %= gomp_cpu_affinity_len;
+  CPU_ZERO (&cpuset);
+  CPU_SET (gomp_cpu_affinity[cpu], &cpuset);
+  pthread_attr_setaffinity_np (attr, sizeof (cpu_set_t), &cpuset);
+}
+
+#else
+
+#include "../posix/affinity.c"
+
+#endif
diff --git a/gcc-4.7/libgomp/config/linux/alpha/futex.h b/gcc-4.7/libgomp/config/linux/alpha/futex.h
new file mode 100644
index 000000000..c8076bd29
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/alpha/futex.h
@@ -0,0 +1,103 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#ifndef SYS_futex
+#define SYS_futex               394
+#endif
+
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  register long sc_0 __asm__("$0");
+  register long sc_16 __asm__("$16");
+  register long sc_17 __asm__("$17");
+  register long sc_18 __asm__("$18");
+  register long sc_19 __asm__("$19");
+
+  sc_0 = SYS_futex;
+  sc_16 = (long) addr;
+  sc_17 = gomp_futex_wait;
+  sc_18 = val;
+  sc_19 = 0;
+  __asm volatile ("callsys"
+		  : "=r" (sc_0), "=r"(sc_19)
+		  : "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18), "1"(sc_19)
+		  : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",
+		    "$22", "$23", "$24", "$25", "$27", "$28", "memory");
+  if (__builtin_expect (sc_19, 0) && sc_0 == ENOSYS)
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sc_0 = SYS_futex;
+      sc_17 &= ~FUTEX_PRIVATE_FLAG;
+      sc_19 = 0;
+      __asm volatile ("callsys"
+		      : "=r" (sc_0), "=r"(sc_19)
+		      : "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18),
+			"1"(sc_19)
+		      : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",
+			"$22", "$23", "$24", "$25", "$27", "$28", "memory");
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  register long sc_0 __asm__("$0");
+  register long sc_16 __asm__("$16");
+  register long sc_17 __asm__("$17");
+  register long sc_18 __asm__("$18");
+  register long sc_19 __asm__("$19");
+
+  sc_0 = SYS_futex;
+  sc_16 = (long) addr;
+  sc_17 = gomp_futex_wake;
+  sc_18 = count;
+  __asm volatile ("callsys"
+		  : "=r" (sc_0), "=r"(sc_19)
+		  : "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18)
+		  : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",
+		    "$22", "$23", "$24", "$25", "$27", "$28", "memory");
+  if (__builtin_expect (sc_19, 0) && sc_0 == ENOSYS)
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sc_0 = SYS_futex;
+      sc_17 &= ~FUTEX_PRIVATE_FLAG;
+      __asm volatile ("callsys"
+		      : "=r" (sc_0), "=r"(sc_19)
+		      : "0"(sc_0), "r" (sc_16), "r"(sc_17), "r"(sc_18)
+		      : "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8",
+			"$22", "$23", "$24", "$25", "$27", "$28", "memory");
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/bar.c b/gcc-4.7/libgomp/config/linux/bar.c
new file mode 100644
index 000000000..223a2aec4
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/bar.c
@@ -0,0 +1,124 @@
+/* Copyright (C) 2005, 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a barrier synchronization
+   mechanism for libgomp.  This type is private to the library.  This 
+   implementation uses atomic instructions and the futex syscall.  */
+
+#include <limits.h>
+#include "wait.h"
+
+
+void
+gomp_barrier_wait_end (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  if (__builtin_expect ((state & 1) != 0, 0))
+    {
+      /* Next time we'll be awaiting TOTAL threads again.  */
+      bar->awaited = bar->total;
+      __atomic_store_n (&bar->generation, bar->generation + 4,
+			MEMMODEL_RELEASE);
+      futex_wake ((int *) &bar->generation, INT_MAX);
+    }
+  else
+    {
+      do
+	do_wait ((int *) &bar->generation, state);
+      while (__atomic_load_n (&bar->generation, MEMMODEL_ACQUIRE) == state);
+    }
+}
+
+void
+gomp_barrier_wait (gomp_barrier_t *bar)
+{
+  gomp_barrier_wait_end (bar, gomp_barrier_wait_start (bar));
+}
+
+/* Like gomp_barrier_wait, except that if the encountering thread
+   is not the last one to hit the barrier, it returns immediately.
+   The intended usage is that a thread which intends to gomp_barrier_destroy
+   this barrier calls gomp_barrier_wait, while all other threads
+   call gomp_barrier_wait_last.  When gomp_barrier_wait returns,
+   the barrier can be safely destroyed.  */
+
+void
+gomp_barrier_wait_last (gomp_barrier_t *bar)
+{
+  gomp_barrier_state_t state = gomp_barrier_wait_start (bar);
+  if (state & 1)
+    gomp_barrier_wait_end (bar, state);
+}
+
+void
+gomp_team_barrier_wake (gomp_barrier_t *bar, int count)
+{
+  futex_wake ((int *) &bar->generation, count == 0 ? INT_MAX : count);
+}
+
+void
+gomp_team_barrier_wait_end (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  unsigned int generation, gen;
+
+  if (__builtin_expect ((state & 1) != 0, 0))
+    {
+      /* Next time we'll be awaiting TOTAL threads again.  */
+      struct gomp_thread *thr = gomp_thread ();
+      struct gomp_team *team = thr->ts.team;
+
+      bar->awaited = bar->total;
+      if (__builtin_expect (team->task_count, 0))
+	{
+	  gomp_barrier_handle_tasks (state);
+	  state &= ~1;
+	}
+      else
+	{
+	  __atomic_store_n (&bar->generation, state + 3, MEMMODEL_RELEASE);
+	  futex_wake ((int *) &bar->generation, INT_MAX);
+	  return;
+	}
+    }
+
+  generation = state;
+  do
+    {
+      do_wait ((int *) &bar->generation, generation);
+      gen = __atomic_load_n (&bar->generation, MEMMODEL_ACQUIRE);
+      if (__builtin_expect (gen & 1, 0))
+	{
+	  gomp_barrier_handle_tasks (state);
+	  gen = __atomic_load_n (&bar->generation, MEMMODEL_ACQUIRE);
+	}
+      if ((gen & 2) != 0)
+	generation |= 2;
+    }
+  while (gen != state + 4);
+}
+
+void
+gomp_team_barrier_wait (gomp_barrier_t *bar)
+{
+  gomp_team_barrier_wait_end (bar, gomp_barrier_wait_start (bar));
+}
diff --git a/gcc-4.7/libgomp/config/linux/bar.h b/gcc-4.7/libgomp/config/linux/bar.h
new file mode 100644
index 000000000..58bd40d69
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/bar.h
@@ -0,0 +1,121 @@
+/* Copyright (C) 2005, 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a barrier synchronization
+   mechanism for libgomp.  This type is private to the library.  This 
+   implementation uses atomic instructions and the futex syscall.  */
+
+#ifndef GOMP_BARRIER_H
+#define GOMP_BARRIER_H 1
+
+#include "mutex.h"
+
+typedef struct
+{
+  /* Make sure total/generation is in a mostly read cacheline, while
+     awaited in a separate cacheline.  */
+  unsigned total __attribute__((aligned (64)));
+  unsigned generation;
+  unsigned awaited __attribute__((aligned (64)));
+} gomp_barrier_t;
+typedef unsigned int gomp_barrier_state_t;
+
+static inline void gomp_barrier_init (gomp_barrier_t *bar, unsigned count)
+{
+  bar->total = count;
+  bar->awaited = count;
+  bar->generation = 0;
+}
+
+static inline void gomp_barrier_reinit (gomp_barrier_t *bar, unsigned count)
+{
+  __atomic_add_fetch (&bar->awaited, count - bar->total, MEMMODEL_ACQ_REL);
+  bar->total = count;
+}
+
+static inline void gomp_barrier_destroy (gomp_barrier_t *bar)
+{
+}
+
+extern void gomp_barrier_wait (gomp_barrier_t *);
+extern void gomp_barrier_wait_last (gomp_barrier_t *);
+extern void gomp_barrier_wait_end (gomp_barrier_t *, gomp_barrier_state_t);
+extern void gomp_team_barrier_wait (gomp_barrier_t *);
+extern void gomp_team_barrier_wait_end (gomp_barrier_t *,
+					gomp_barrier_state_t);
+extern void gomp_team_barrier_wake (gomp_barrier_t *, int);
+
+static inline gomp_barrier_state_t
+gomp_barrier_wait_start (gomp_barrier_t *bar)
+{
+  unsigned int ret = __atomic_load_n (&bar->generation, MEMMODEL_ACQUIRE) & ~3;
+  /* A memory barrier is needed before exiting from the various forms
+     of gomp_barrier_wait, to satisfy OpenMP API version 3.1 section
+     2.8.6 flush Construct, which says there is an implicit flush during
+     a barrier region.  This is a convenient place to add the barrier,
+     so we use MEMMODEL_ACQ_REL here rather than MEMMODEL_ACQUIRE.  */
+  ret += __atomic_add_fetch (&bar->awaited, -1, MEMMODEL_ACQ_REL) == 0;
+  return ret;
+}
+
+static inline bool
+gomp_barrier_last_thread (gomp_barrier_state_t state)
+{
+  return state & 1;
+}
+
+/* All the inlines below must be called with team->task_lock
+   held.  */
+
+static inline void
+gomp_team_barrier_set_task_pending (gomp_barrier_t *bar)
+{
+  bar->generation |= 1;
+}
+
+static inline void
+gomp_team_barrier_clear_task_pending (gomp_barrier_t *bar)
+{
+  bar->generation &= ~1;
+}
+
+static inline void
+gomp_team_barrier_set_waiting_for_tasks (gomp_barrier_t *bar)
+{
+  bar->generation |= 2;
+}
+
+static inline bool
+gomp_team_barrier_waiting_for_tasks (gomp_barrier_t *bar)
+{
+  return (bar->generation & 2) != 0;
+}
+
+static inline void
+gomp_team_barrier_done (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  bar->generation = (state & ~3) + 4;
+}
+
+#endif /* GOMP_BARRIER_H */
diff --git a/gcc-4.7/libgomp/config/linux/futex.h b/gcc-4.7/libgomp/config/linux/futex.h
new file mode 100644
index 000000000..d0136f50a
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/futex.h
@@ -0,0 +1,69 @@
+/* Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+   Contributed by ARM Ltd.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+/* The include file hierachy above us (wait.h) has pushed visibility
+   hidden, this will be applied to prototypes with headers we include
+   with the effect that we cannot link against an external function
+   (syscall). The solution here is to push default visibility, include
+   our required headers then reinstante the original visibility.  */
+
+#pragma GCC visibility push(default)
+
+#define _GNU_SOURCE 
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#pragma GCC visibility pop
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long err = syscall (SYS_futex, addr, gomp_futex_wait, val, NULL);
+  if (__builtin_expect (err == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      syscall (SYS_futex, addr, gomp_futex_wait, val, NULL);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long err = syscall (SYS_futex, addr, gomp_futex_wake, count);
+  if (__builtin_expect (err == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      syscall (SYS_futex, addr, gomp_futex_wake, count);
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/ia64/futex.h b/gcc-4.7/libgomp/config/linux/ia64/futex.h
new file mode 100644
index 000000000..85cd02fa1
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/ia64/futex.h
@@ -0,0 +1,88 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+
+
+
+static inline long
+sys_futex0(int *addr, long op, int val)
+{
+  register long out0 asm ("out0") = (long) addr;
+  register long out1 asm ("out1") = op;
+  register long out2 asm ("out2") = val;
+  register long out3 asm ("out3") = 0;
+  register long r8 asm ("r8");
+  register long r10 asm ("r10");
+  register long r15 asm ("r15") = SYS_futex;
+
+  __asm __volatile ("break 0x100000"
+	: "=r"(r15), "=r"(out0), "=r"(out1), "=r"(out2), "=r"(out3),
+	  "=r"(r8), "=r"(r10)
+	: "r"(r15), "r"(out0), "r"(out1), "r"(out2), "r"(out3)
+	: "memory", "out4", "out5", "out6", "out7",
+	  /* Non-stacked integer registers, minus r8, r10, r15.  */
+	  "r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18",
+	  "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27",
+	  "r28", "r29", "r30", "r31",
+	  /* Predicate registers.  */
+	  "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15",
+	  /* Non-rotating fp registers.  */
+	  "f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
+	  /* Branch registers.  */
+	  "b6");
+  return r8 & r10;
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long err = sys_futex0 (addr, gomp_futex_wait, val);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wait, val);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long err = sys_futex0 (addr, gomp_futex_wake, count);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wake, count);
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("hint @pause" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/lock.c b/gcc-4.7/libgomp/config/linux/lock.c
new file mode 100644
index 000000000..047d8cdf7
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/lock.c
@@ -0,0 +1,264 @@
+/* Copyright (C) 2005, 2008, 2009, 2011, 2012 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of the public OpenMP locking
+   primitives.  This implementation uses atomic instructions and the futex
+   syscall.  */
+
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include "wait.h"
+
+
+/* The internal gomp_mutex_t and the external non-recursive omp_lock_t
+   have the same form.  Re-use it.  */
+
+void
+gomp_init_lock_30 (omp_lock_t *lock)
+{
+  gomp_mutex_init (lock);
+}
+
+void
+gomp_destroy_lock_30 (omp_lock_t *lock)
+{
+  gomp_mutex_destroy (lock);
+}
+
+void
+gomp_set_lock_30 (omp_lock_t *lock)
+{
+  gomp_mutex_lock (lock);
+}
+
+void
+gomp_unset_lock_30 (omp_lock_t *lock)
+{
+  gomp_mutex_unlock (lock);
+}
+
+int
+gomp_test_lock_30 (omp_lock_t *lock)
+{
+  int oldval = 0;
+
+  return __atomic_compare_exchange_n (lock, &oldval, 1, false,
+				      MEMMODEL_ACQUIRE, MEMMODEL_RELAXED);
+}
+
+void
+gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  memset (lock, '\0', sizeof (*lock));
+}
+
+void
+gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
+{
+}
+
+void
+gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+
+  if (lock->owner != me)
+    {
+      gomp_mutex_lock (&lock->lock);
+      lock->owner = me;
+    }
+
+  lock->count++;
+}
+
+void
+gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  if (--lock->count == 0)
+    {
+      lock->owner = NULL;
+      gomp_mutex_unlock (&lock->lock);
+    }
+}
+
+int
+gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+  int oldval;
+
+  if (lock->owner == me)
+    return ++lock->count;
+
+  oldval = 0;
+  if (__atomic_compare_exchange_n (&lock->lock, &oldval, 1, false,
+				   MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+    {
+      lock->owner = me;
+      lock->count = 1;
+      return 1;
+    }
+
+  return 0;
+}
+
+#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
+/* gomp_mutex_* can be safely locked in one thread and
+   unlocked in another thread, so the OpenMP 2.5 and OpenMP 3.0
+   non-nested locks can be the same.  */
+strong_alias (gomp_init_lock_30, gomp_init_lock_25)
+strong_alias (gomp_destroy_lock_30, gomp_destroy_lock_25)
+strong_alias (gomp_set_lock_30, gomp_set_lock_25)
+strong_alias (gomp_unset_lock_30, gomp_unset_lock_25)
+strong_alias (gomp_test_lock_30, gomp_test_lock_25)
+
+/* The external recursive omp_nest_lock_25_t form requires additional work.  */
+
+/* We need an integer to uniquely identify this thread.  Most generally
+   this is the thread's TID, which ideally we'd get this straight from
+   the TLS block where glibc keeps it.  Unfortunately, we can't get at
+   that directly.
+
+   If we don't support (or have disabled) TLS, one function call is as
+   good (or bad) as any other.  Use the syscall all the time.
+
+   On an ILP32 system (defined here as not LP64), we can make do with
+   any thread-local pointer.  Ideally we'd use the TLS base address,
+   since that requires the least amount of arithmetic, but that's not
+   always available directly.  Make do with the gomp_thread pointer
+   since it's handy.  */
+
+# if !defined (HAVE_TLS)
+static inline int gomp_tid (void)
+{
+  return syscall (SYS_gettid);
+}
+# elif !defined(__LP64__)
+static inline int gomp_tid (void)
+{
+  return (int) gomp_thread ();
+}
+# else
+static __thread int tid_cache;
+static inline int gomp_tid (void)
+{
+  int tid = tid_cache;
+  if (__builtin_expect (tid == 0, 0))
+    tid_cache = tid = syscall (SYS_gettid);
+  return tid;
+}
+# endif
+
+
+void
+gomp_init_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  memset (lock, 0, sizeof (*lock));
+}
+
+void
+gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+}
+
+void
+gomp_set_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  int otid, tid = gomp_tid ();
+
+  while (1)
+    {
+      otid = 0;
+      if (__atomic_compare_exchange_n (&lock->owner, &otid, tid, false,
+				       MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+	{
+	  lock->count = 1;
+	  return;
+	}
+      if (otid == tid)
+	{
+	  lock->count++;
+	  return;
+	}
+
+      do_wait (&lock->owner, otid);
+    }
+}
+
+void
+gomp_unset_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  /* ??? Validate that we own the lock here.  */
+
+  if (--lock->count == 0)
+    {
+      __atomic_store_n (&lock->owner, 0, MEMMODEL_RELEASE);
+      futex_wake (&lock->owner, 1);
+    }
+}
+
+int
+gomp_test_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  int otid, tid = gomp_tid ();
+
+  otid = 0;
+  if (__atomic_compare_exchange_n (&lock->owner, &otid, tid, false,
+				   MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+    {
+      lock->count = 1;
+      return 1;
+    }
+  if (otid == tid)
+    return ++lock->count;
+
+  return 0;
+}
+
+omp_lock_symver (omp_init_lock)
+omp_lock_symver (omp_destroy_lock)
+omp_lock_symver (omp_set_lock)
+omp_lock_symver (omp_unset_lock)
+omp_lock_symver (omp_test_lock)
+omp_lock_symver (omp_init_nest_lock)
+omp_lock_symver (omp_destroy_nest_lock)
+omp_lock_symver (omp_set_nest_lock)
+omp_lock_symver (omp_unset_nest_lock)
+omp_lock_symver (omp_test_nest_lock)
+
+#else
+
+ialias (omp_init_lock)
+ialias (omp_init_nest_lock)
+ialias (omp_destroy_lock)
+ialias (omp_destroy_nest_lock)
+ialias (omp_set_lock)
+ialias (omp_set_nest_lock)
+ialias (omp_unset_lock)
+ialias (omp_unset_nest_lock)
+ialias (omp_test_lock)
+ialias (omp_test_nest_lock)
+
+#endif
diff --git a/gcc-4.7/libgomp/config/linux/mips/futex.h b/gcc-4.7/libgomp/config/linux/mips/futex.h
new file mode 100644
index 000000000..93655d311
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/mips/futex.h
@@ -0,0 +1,66 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Ilie Garbacea <ilie@mips.com>, Chao-ying Fu <fu@mips.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+#define FUTEX_WAIT 0
+#define FUTEX_WAKE 1
+
+static inline void
+sys_futex0 (int *addr, int op, int val)
+{
+  register unsigned long __v0 asm("$2") = (unsigned long) SYS_futex;
+  register unsigned long __a0 asm("$4") = (unsigned long) addr;
+  register unsigned long __a1 asm("$5") = (unsigned long) op;
+  register unsigned long __a2 asm("$6") = (unsigned long) val;
+  register unsigned long __a3 asm("$7") = 0;
+
+  __asm volatile ("syscall"
+		  /* returns $a3 (errno), $v0 (return value) */
+		  : "=r" (__v0), "=r" (__a3)
+		  /* arguments in v0 (syscall) a0-a3 */
+		  : "r" (__v0), "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a3)
+		  /* clobbers at, v1, t0-t9, memory */
+		  : "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", "$14",
+		    "$15", "$24", "$25", "memory");
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  sys_futex0 (addr, FUTEX_WAIT, val);
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  sys_futex0 (addr, FUTEX_WAKE, count);
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/mutex.c b/gcc-4.7/libgomp/config/linux/mutex.c
new file mode 100644
index 000000000..1b84ffb09
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/mutex.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 2005, 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.  */
+
+#include "wait.h"
+
+long int gomp_futex_wake = FUTEX_WAKE | FUTEX_PRIVATE_FLAG;
+long int gomp_futex_wait = FUTEX_WAIT | FUTEX_PRIVATE_FLAG;
+
+void
+gomp_mutex_lock_slow (gomp_mutex_t *mutex, int oldval)
+{
+  /* First loop spins a while.  */
+  while (oldval == 1)
+    {
+      if (do_spin (mutex, 1))
+	{
+	  /* Spin timeout, nothing changed.  Set waiting flag.  */
+	  oldval = __atomic_exchange_n (mutex, -1, MEMMODEL_ACQUIRE);
+	  if (oldval == 0)
+	    return;
+	  futex_wait (mutex, -1);
+	  break;
+	}
+      else
+	{
+	  /* Something changed.  If now unlocked, we're good to go.  */
+	  oldval = 0;
+	  if (__atomic_compare_exchange_n (mutex, &oldval, 1, false,
+					   MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+	    return;
+	}
+    }
+
+  /* Second loop waits until mutex is unlocked.  We always exit this
+     loop with wait flag set, so next unlock will awaken a thread.  */
+  while ((oldval = __atomic_exchange_n (mutex, -1, MEMMODEL_ACQUIRE)))
+    do_wait (mutex, -1);
+}
+
+void
+gomp_mutex_unlock_slow (gomp_mutex_t *mutex)
+{
+  futex_wake (mutex, 1);
+}
diff --git a/gcc-4.7/libgomp/config/linux/mutex.h b/gcc-4.7/libgomp/config/linux/mutex.h
new file mode 100644
index 000000000..912152ec3
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/mutex.h
@@ -0,0 +1,66 @@
+/* Copyright (C) 2005, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.  */
+
+#ifndef GOMP_MUTEX_H
+#define GOMP_MUTEX_H 1
+
+typedef int gomp_mutex_t;
+
+#define GOMP_MUTEX_INIT_0 1
+
+extern void gomp_mutex_lock_slow (gomp_mutex_t *mutex, int);
+extern void gomp_mutex_unlock_slow (gomp_mutex_t *mutex);
+
+static inline void
+gomp_mutex_init (gomp_mutex_t *mutex)
+{
+  *mutex = 0;
+}
+
+static inline void
+gomp_mutex_destroy (gomp_mutex_t *mutex)
+{
+}
+
+static inline void
+gomp_mutex_lock (gomp_mutex_t *mutex)
+{
+  int oldval = 0;
+  if (!__atomic_compare_exchange_n (mutex, &oldval, 1, false,
+				    MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+    gomp_mutex_lock_slow (mutex, oldval);
+}
+
+static inline void
+gomp_mutex_unlock (gomp_mutex_t *mutex)
+{
+  int wait = __atomic_exchange_n (mutex, 0, MEMMODEL_RELEASE);
+  if (__builtin_expect (wait < 0, 0))
+    gomp_mutex_unlock_slow (mutex);
+}
+#endif /* GOMP_MUTEX_H */
diff --git a/gcc-4.7/libgomp/config/linux/omp-lock.h b/gcc-4.7/libgomp/config/linux/omp-lock.h
new file mode 100644
index 000000000..2ca7c5e1d
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/omp-lock.h
@@ -0,0 +1,12 @@
+/* This header is used during the build process to find the size and 
+   alignment of the public OpenMP locks, so that we can export data
+   structures without polluting the namespace.
+
+   When using the Linux futex primitive, non-recursive locks require
+   one int.  Recursive locks require we identify the owning task
+   and so require in addition one int and a pointer.  */
+
+typedef int omp_lock_t;
+typedef struct { int lock, count; void *owner; } omp_nest_lock_t;
+typedef int omp_lock_25_t;
+typedef struct { int owner, count; } omp_nest_lock_25_t;
diff --git a/gcc-4.7/libgomp/config/linux/powerpc/futex.h b/gcc-4.7/libgomp/config/linux/powerpc/futex.h
new file mode 100644
index 000000000..9d928e204
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/powerpc/futex.h
@@ -0,0 +1,86 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+
+static inline long
+sys_futex0 (int *addr, int op, int val)
+{
+  register long int r0  __asm__ ("r0");
+  register long int r3  __asm__ ("r3");
+  register long int r4  __asm__ ("r4");
+  register long int r5  __asm__ ("r5");
+  register long int r6  __asm__ ("r6");
+
+  r0 = SYS_futex;
+  r3 = (long) addr;
+  r4 = op;
+  r5 = val;
+  r6 = 0;
+
+  /* ??? The powerpc64 sysdep.h file clobbers ctr; the powerpc32 sysdep.h
+     doesn't.  It doesn't much matter for us.  In the interest of unity,
+     go ahead and clobber it always.  */
+
+  __asm volatile ("sc; mfcr %0"
+		  : "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6)
+		  : "r"(r0), "r"(r3), "r"(r4), "r"(r5), "r"(r6)
+		  : "r7", "r8", "r9", "r10", "r11", "r12",
+		    "cr0", "ctr", "memory");
+  if (__builtin_expect (r0 & (1 << 28), 0))
+    return r3;
+  return 0;
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long err = sys_futex0 (addr, gomp_futex_wait, val);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wait, val);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long err = sys_futex0 (addr, gomp_futex_wake, count);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wake, count);
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/proc.c b/gcc-4.7/libgomp/config/linux/proc.c
new file mode 100644
index 000000000..8d9cfb599
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/proc.c
@@ -0,0 +1,164 @@
+/* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
+   Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains system specific routines related to counting
+   online processors and dynamic load balancing.  */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE 1
+#endif
+#include "libgomp.h"
+#include "proc.h"
+#include <stdlib.h>
+#include <unistd.h>
+#ifdef HAVE_GETLOADAVG
+# ifdef HAVE_SYS_LOADAVG_H
+#  include <sys/loadavg.h>
+# endif
+#endif
+
+#ifdef HAVE_PTHREAD_AFFINITY_NP
+unsigned long
+gomp_cpuset_popcount (cpu_set_t *cpusetp)
+{
+#ifdef CPU_COUNT
+  /* glibc 2.6 and above provide a macro for this.  */
+  return CPU_COUNT (cpusetp);
+#else
+  size_t i;
+  unsigned long ret = 0;
+  extern int check[sizeof (cpusetp->__bits[0]) == sizeof (unsigned long int)];
+
+  (void) check;
+  for (i = 0; i < sizeof (*cpusetp) / sizeof (cpusetp->__bits[0]); i++)
+    {
+      unsigned long int mask = cpusetp->__bits[i];
+      if (mask == 0)
+	continue;
+      ret += __builtin_popcountl (mask);
+    }
+  return ret;
+#endif
+}
+#endif
+
+/* At startup, determine the default number of threads.  It would seem
+   this should be related to the number of cpus online.  */
+
+void
+gomp_init_num_threads (void)
+{
+#ifdef HAVE_PTHREAD_AFFINITY_NP
+  cpu_set_t cpuset;
+
+  if (pthread_getaffinity_np (pthread_self (), sizeof (cpuset), &cpuset) == 0)
+    {
+      /* Count only the CPUs this process can use.  */
+      gomp_global_icv.nthreads_var = gomp_cpuset_popcount (&cpuset);
+      if (gomp_global_icv.nthreads_var == 0)
+	gomp_global_icv.nthreads_var = 1;
+      return;
+    }
+#endif
+#ifdef _SC_NPROCESSORS_ONLN
+  gomp_global_icv.nthreads_var = sysconf (_SC_NPROCESSORS_ONLN);
+#endif
+}
+
+static int
+get_num_procs (void)
+{
+#ifdef HAVE_PTHREAD_AFFINITY_NP
+  cpu_set_t cpuset;
+
+  if (gomp_cpu_affinity == NULL)
+    {
+      /* Count only the CPUs this process can use.  */
+      if (pthread_getaffinity_np (pthread_self (), sizeof (cpuset),
+				  &cpuset) == 0)
+	{
+	  int ret = gomp_cpuset_popcount (&cpuset);
+	  return ret != 0 ? ret : 1;
+	}
+    }
+  else
+    {
+      /* We can't use pthread_getaffinity_np in this case
+	 (we have changed it ourselves, it binds to just one CPU).
+	 Count instead the number of different CPUs we are
+	 using.  gomp_init_affinity updated gomp_available_cpus to
+	 the number of CPUs in the GOMP_AFFINITY mask that we are
+	 allowed to use though.  */
+      return gomp_available_cpus;
+    }
+#endif
+#ifdef _SC_NPROCESSORS_ONLN
+  return sysconf (_SC_NPROCESSORS_ONLN);
+#else
+  return gomp_icv (false)->nthreads_var;
+#endif
+}
+
+/* When OMP_DYNAMIC is set, at thread launch determine the number of
+   threads we should spawn for this team.  */
+/* ??? I have no idea what best practice for this is.  Surely some
+   function of the number of processors that are *still* online and
+   the load average.  Here I use the number of processors online
+   minus the 15 minute load average.  */
+
+unsigned
+gomp_dynamic_max_threads (void)
+{
+  unsigned n_onln, loadavg, nthreads_var = gomp_icv (false)->nthreads_var;
+
+  n_onln = get_num_procs ();
+  if (n_onln > nthreads_var)
+    n_onln = nthreads_var;
+
+  loadavg = 0;
+#ifdef HAVE_GETLOADAVG
+  {
+    double dloadavg[3];
+    if (getloadavg (dloadavg, 3) == 3)
+      {
+	/* Add 0.1 to get a kind of biased rounding.  */
+	loadavg = dloadavg[2] + 0.1;
+      }
+  }
+#endif
+
+  if (loadavg >= n_onln)
+    return 1;
+  else
+    return n_onln - loadavg;
+}
+
+int
+omp_get_num_procs (void)
+{
+  return get_num_procs ();
+}
+
+ialias (omp_get_num_procs)
diff --git a/gcc-4.7/libgomp/config/linux/proc.h b/gcc-4.7/libgomp/config/linux/proc.h
new file mode 100644
index 000000000..f9e311088
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/proc.h
@@ -0,0 +1,34 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+   Contributed by Uros Bizjak <ubizjak@gmail.com>
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef GOMP_PROC_H
+#define GOMP_PROC_H 1
+
+#include <sched.h>
+
+#ifdef HAVE_PTHREAD_AFFINITY_NP
+extern unsigned long gomp_cpuset_popcount (cpu_set_t *);
+#endif
+
+#endif /* GOMP_PROC_H */
diff --git a/gcc-4.7/libgomp/config/linux/ptrlock.c b/gcc-4.7/libgomp/config/linux/ptrlock.c
new file mode 100644
index 000000000..5896f424a
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/ptrlock.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.  */
+
+#include <endian.h>
+#include <limits.h>
+#include "wait.h"
+
+void *
+gomp_ptrlock_get_slow (gomp_ptrlock_t *ptrlock)
+{
+  int *intptr;
+  uintptr_t oldval = 1;
+
+  __atomic_compare_exchange_n (ptrlock, &oldval, 2, false,
+			       MEMMODEL_RELAXED, MEMMODEL_RELAXED);
+
+  /* futex works on ints, not pointers.
+     But a valid work share pointer will be at least
+     8 byte aligned, so it is safe to assume the low
+     32-bits of the pointer won't contain values 1 or 2.  */
+  __asm volatile ("" : "=r" (intptr) : "0" (ptrlock));
+#if __BYTE_ORDER == __BIG_ENDIAN
+  if (sizeof (*ptrlock) > sizeof (int))
+    intptr += (sizeof (*ptrlock) / sizeof (int)) - 1;
+#endif
+  do
+    do_wait (intptr, 2);
+  while (*intptr == 2);
+  __asm volatile ("" : : : "memory");
+  return *ptrlock;
+}
+
+void
+gomp_ptrlock_set_slow (gomp_ptrlock_t *ptrlock)
+{
+  int *intptr;
+
+  __asm volatile ("" : "=r" (intptr) : "0" (ptrlock));
+#if __BYTE_ORDER == __BIG_ENDIAN
+  if (sizeof (*ptrlock) > sizeof (int))
+    intptr += (sizeof (*ptrlock) / sizeof (int)) - 1;
+#endif
+  futex_wake (intptr, INT_MAX);
+}
diff --git a/gcc-4.7/libgomp/config/linux/ptrlock.h b/gcc-4.7/libgomp/config/linux/ptrlock.h
new file mode 100644
index 000000000..2f17e09cc
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/ptrlock.h
@@ -0,0 +1,74 @@
+/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.
+
+   A ptrlock has four states:
+   0/NULL Initial
+   1      Owned by me, I get to write a pointer to ptrlock.
+   2      Some thread is waiting on the ptrlock.
+   >2     Ptrlock contains a valid pointer.
+   It is not valid to gain the ptrlock and then write a NULL to it.  */
+
+#ifndef GOMP_PTRLOCK_H
+#define GOMP_PTRLOCK_H 1
+
+typedef void *gomp_ptrlock_t;
+
+static inline void gomp_ptrlock_init (gomp_ptrlock_t *ptrlock, void *ptr)
+{
+  *ptrlock = ptr;
+}
+
+extern void *gomp_ptrlock_get_slow (gomp_ptrlock_t *ptrlock);
+static inline void *gomp_ptrlock_get (gomp_ptrlock_t *ptrlock)
+{
+  uintptr_t oldval;
+
+  if ((uintptr_t) *ptrlock > 2)
+    return *ptrlock;
+
+  oldval = 0;
+  if (__atomic_compare_exchange_n (ptrlock, &oldval, 1, false,
+				   MEMMODEL_ACQUIRE, MEMMODEL_ACQUIRE))
+    return NULL;
+
+  return gomp_ptrlock_get_slow (ptrlock);
+}
+
+extern void gomp_ptrlock_set_slow (gomp_ptrlock_t *ptrlock);
+static inline void gomp_ptrlock_set (gomp_ptrlock_t *ptrlock, void *ptr)
+{
+  void *wait = __atomic_exchange_n (ptrlock, ptr, MEMMODEL_RELEASE);
+  if ((uintptr_t) wait != 1)
+    gomp_ptrlock_set_slow (ptrlock);
+}
+
+static inline void gomp_ptrlock_destroy (gomp_ptrlock_t *ptrlock)
+{
+}
+
+#endif /* GOMP_PTRLOCK_H */
diff --git a/gcc-4.7/libgomp/config/linux/s390/futex.h b/gcc-4.7/libgomp/config/linux/s390/futex.h
new file mode 100644
index 000000000..e015c921d
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/s390/futex.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+
+static inline long
+sys_futex0 (int *addr, int op, int val)
+{
+  register long int gpr2  __asm__ ("2");
+  register long int gpr3  __asm__ ("3");
+  register long int gpr4  __asm__ ("4");
+  register long int gpr5  __asm__ ("5");
+
+  gpr2 = (long) addr;
+  gpr3 = op;
+  gpr4 = val;
+  gpr5 = 0;
+
+  __asm volatile ("svc %b1"
+		  : "=d" (gpr2)
+		  : "i" (SYS_futex),
+		    "0" (gpr2), "d" (gpr3), "d" (gpr4), "d" (gpr5)
+		  : "memory");
+  return gpr2;
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long err = sys_futex0 (addr, gomp_futex_wait, val);
+  if (__builtin_expect (err == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wait, val);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long err = sys_futex0 (addr, gomp_futex_wake, count);
+  if (__builtin_expect (err == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wake, count);
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/sem.c b/gcc-4.7/libgomp/config/linux/sem.c
new file mode 100644
index 000000000..3f2fc9988
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/sem.c
@@ -0,0 +1,83 @@
+/* Copyright (C) 2005, 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a semaphore synchronization
+   mechanism for libgomp.  This type is private to the library.  This 
+   implementation uses atomic instructions and the futex syscall.  */
+
+#include "wait.h"
+
+void
+gomp_sem_wait_slow (gomp_sem_t *sem, int count)
+{
+  /* First loop spins a while.  */
+  while (count == 0)
+    if (do_spin (sem, 0)
+	/* Spin timeout, nothing changed.  Set waiting flag.  */
+	&& __atomic_compare_exchange_n (sem, &count, SEM_WAIT, false,
+					MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+      {
+	futex_wait (sem, SEM_WAIT);
+	count = *sem;
+	break;
+      }
+  /* Something changed.  If it wasn't the wait flag, we're good to go.  */
+    else if (__builtin_expect (((count = *sem) & SEM_WAIT) == 0 && count != 0,
+			       1))
+      {
+	if (__atomic_compare_exchange_n (sem, &count, count - SEM_INC, false,
+					 MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+	  return;
+      }
+
+  /* Second loop waits until semaphore is posted.  We always exit this
+     loop with wait flag set, so next post will awaken a thread.  */
+  while (1)
+    {
+      unsigned int wake = count & ~SEM_WAIT;
+      int newval = SEM_WAIT;
+
+      if (wake != 0)
+	newval |= wake - SEM_INC;
+      if (__atomic_compare_exchange_n (sem, &count, newval, false,
+				       MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+	{
+	  if (wake != 0)
+	    {
+	      /* If we can wake more threads, do so now.  */
+	      if (wake > SEM_INC)
+		gomp_sem_post_slow (sem);
+	      break;
+	    }
+	  do_wait (sem, SEM_WAIT);
+	  count = *sem;
+	}
+    }
+}
+
+void
+gomp_sem_post_slow (gomp_sem_t *sem)
+{
+  futex_wake (sem, 1);
+}
diff --git a/gcc-4.7/libgomp/config/linux/sem.h b/gcc-4.7/libgomp/config/linux/sem.h
new file mode 100644
index 000000000..9bf480ded
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/sem.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 2005, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a semaphore synchronization
+   mechanism for libgomp.  This type is private to the library.  This 
+   counting semaphore implementation uses atomic instructions and the
+   futex syscall, and a single 32-bit int to store semaphore state.
+   The low 31 bits are the count, the top bit is a flag set when some
+   threads may be waiting.  */
+
+#ifndef GOMP_SEM_H
+#define GOMP_SEM_H 1
+
+#include <limits.h> /* For INT_MIN */
+
+typedef int gomp_sem_t;
+#define SEM_WAIT INT_MIN
+#define SEM_INC 1
+
+extern void gomp_sem_wait_slow (gomp_sem_t *, int);
+extern void gomp_sem_post_slow (gomp_sem_t *);
+
+static inline void
+gomp_sem_init (gomp_sem_t *sem, int value)
+{
+  *sem = value * SEM_INC;
+}
+
+static inline void
+gomp_sem_destroy (gomp_sem_t *sem)
+{
+}
+
+static inline void
+gomp_sem_wait (gomp_sem_t *sem)
+{
+  int count = *sem;
+
+  while ((count & ~SEM_WAIT) != 0)
+    if (__atomic_compare_exchange_n (sem, &count, count - SEM_INC, true,
+				     MEMMODEL_ACQUIRE, MEMMODEL_RELAXED))
+      return;
+  gomp_sem_wait_slow (sem, count);
+}
+
+static inline void
+gomp_sem_post (gomp_sem_t *sem)
+{
+  int count = *sem;
+
+  /* Clear SEM_WAIT here so that if there are no more waiting threads
+     we transition back to the uncontended state that does not make
+     futex syscalls.  If there are waiting threads then when one is
+     awoken it will set SEM_WAIT again, so other waiting threads are
+     woken on a future gomp_sem_post.  Furthermore, the awoken thread
+     will wake other threads in case gomp_sem_post was called again
+     before it had time to set SEM_WAIT.  */
+  while (!__atomic_compare_exchange_n (sem, &count,
+				       (count + SEM_INC) & ~SEM_WAIT, true,
+				       MEMMODEL_RELEASE, MEMMODEL_RELAXED))
+    continue;
+
+  if (__builtin_expect (count & SEM_WAIT, 0))
+    gomp_sem_post_slow (sem);
+}
+#endif /* GOMP_SEM_H */
diff --git a/gcc-4.7/libgomp/config/linux/sparc/futex.h b/gcc-4.7/libgomp/config/linux/sparc/futex.h
new file mode 100644
index 000000000..96e37b820
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/sparc/futex.h
@@ -0,0 +1,94 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+
+static inline long
+sys_futex0 (int *addr, int op, int val)
+{
+  register long int g1  __asm__ ("g1");
+  register long int o0  __asm__ ("o0");
+  register long int o1  __asm__ ("o1");
+  register long int o2  __asm__ ("o2");
+  register long int o3  __asm__ ("o3");
+
+  g1 = SYS_futex;
+  o0 = (long) addr;
+  o1 = op;
+  o2 = val;
+  o3 = 0;
+
+#ifdef __arch64__
+# define SYSCALL_STRING "ta\t0x6d; bcs,a,pt %%xcc, 1f; sub %%g0, %%o0, %%o0; 1:"
+#else
+# define SYSCALL_STRING "ta\t0x10; bcs,a 1f; sub %%g0, %%o0, %%o0; 1:"
+#endif
+
+  __asm volatile (SYSCALL_STRING
+		  : "=r" (g1), "=r" (o0)
+		  : "0" (g1), "1" (o0), "r" (o1), "r" (o2), "r" (o3)
+		  : "g2", "g3", "g4", "g5", "g6",
+		    "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7",
+		    "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15",
+		    "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
+		    "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31",
+#ifdef __arch64__
+		    "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46",
+		    "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62",
+#endif
+		    "cc", "memory");
+  return o0;
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long err = sys_futex0 (addr, gomp_futex_wait, val);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wait, val);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long err = sys_futex0 (addr, gomp_futex_wake, count);
+  if (__builtin_expect (err == ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wake, count);
+    }
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("rd %%ccr, %%g0" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/linux/tile/futex.h b/gcc-4.7/libgomp/config/linux/tile/futex.h
new file mode 100644
index 000000000..2e733a740
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/tile/futex.h
@@ -0,0 +1,73 @@
+/* Copyright (C) 2011, 2012
+   Free Software Foundation, Inc.
+   Contributed by Walter Lee (walt@tilera.com)
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#include <sys/syscall.h>
+#include <linux/futex.h>
+
+static inline void
+sys_futex0 (int *addr, int op, int val)
+{
+  long _sys_result;
+  long _clobber_r2, _clobber_r3, _clobber_r4, _clobber_r5, _clobber_r10;
+  int err;
+
+  __asm__ __volatile__ (
+    "swint1"
+    : "=R00" (_sys_result), "=R01" (err), "=R02" (_clobber_r2),
+      "=R03" (_clobber_r3), "=R04" (_clobber_r4), "=R05" (_clobber_r5),
+      "=R10" (_clobber_r10)
+    : "R10" (SYS_futex), "R00" (addr), "R01" (op), "R02" (val),
+      "R03" (0)
+    :  "r6",  "r7",
+       "r8",  "r9",        "r11", "r12", "r13", "r14", "r15",
+      "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+      "r24", "r25", "r26", "r27", "r28", "r29", "memory");
+}
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  sys_futex0 (addr, FUTEX_WAIT, val);
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  sys_futex0 (addr, FUTEX_WAKE, count);
+}
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("" : : : "memory");
+}
+
+static inline void
+atomic_write_barrier (void)
+{
+  __sync_synchronize ();
+}
diff --git a/gcc-4.7/libgomp/config/linux/wait.h b/gcc-4.7/libgomp/config/linux/wait.h
new file mode 100644
index 000000000..4f6598558
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/wait.h
@@ -0,0 +1,71 @@
+/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.  */
+
+#ifndef GOMP_WAIT_H
+#define GOMP_WAIT_H 1
+
+#include "libgomp.h"
+#include <errno.h>
+
+#define FUTEX_WAIT	0
+#define FUTEX_WAKE	1
+#define FUTEX_PRIVATE_FLAG	128L
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(hidden)
+#endif
+
+extern long int gomp_futex_wait, gomp_futex_wake;
+
+#include <futex.h>
+
+static inline int do_spin (int *addr, int val)
+{
+  unsigned long long i, count = gomp_spin_count_var;
+
+  if (__builtin_expect (gomp_managed_threads > gomp_available_cpus, 0))
+    count = gomp_throttled_spin_count_var;
+  for (i = 0; i < count; i++)
+    if (__builtin_expect (*addr != val, 0))
+      return 0;
+    else
+      cpu_relax ();
+  return 1;
+}
+
+static inline void do_wait (int *addr, int val)
+{
+  if (do_spin (addr, val))
+    futex_wait (addr, val);
+}
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#endif /* GOMP_WAIT_H */
diff --git a/gcc-4.7/libgomp/config/linux/x86/futex.h b/gcc-4.7/libgomp/config/linux/x86/futex.h
new file mode 100644
index 000000000..f6d26dc49
--- /dev/null
+++ b/gcc-4.7/libgomp/config/linux/x86/futex.h
@@ -0,0 +1,147 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Provide target-specific access to the futex system call.  */
+
+#ifdef __x86_64__
+# ifndef SYS_futex
+#  define SYS_futex	202
+# endif
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  register long r10 __asm__("%r10");
+  long res;
+
+  r10 = 0;
+  __asm volatile ("syscall"
+		  : "=a" (res)
+		  : "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wait),
+		    "d" (val), "r" (r10)
+		  : "r11", "rcx", "memory");
+  if (__builtin_expect (res == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      r10 = 0;
+      __asm volatile ("syscall"
+		      : "=a" (res)
+		      : "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wait),
+			"d" (val), "r" (r10)
+		      : "r11", "rcx", "memory");
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long res;
+
+  __asm volatile ("syscall"
+		  : "=a" (res)
+		  : "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wake),
+		    "d" (count)
+		  : "r11", "rcx", "memory");
+  if (__builtin_expect (res == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      __asm volatile ("syscall"
+		      : "=a" (res)
+		      : "0" (SYS_futex), "D" (addr), "S" (gomp_futex_wake),
+			"d" (count)
+		      : "r11", "rcx", "memory");
+    }
+}
+#else
+# ifndef SYS_futex
+#  define SYS_futex	240
+# endif
+
+# ifdef __PIC__
+
+static inline long
+sys_futex0 (int *addr, int op, int val)
+{
+  long res;
+
+  __asm volatile ("xchgl\t%%ebx, %2\n\t"
+		  "int\t$0x80\n\t"
+		  "xchgl\t%%ebx, %2"
+		  : "=a" (res)
+		  : "0"(SYS_futex), "r" (addr), "c"(op),
+		    "d"(val), "S"(0)
+		  : "memory");
+  return res;
+}
+
+# else
+
+static inline long
+sys_futex0 (int *addr, int op, int val)
+{
+  long res;
+
+  __asm volatile ("int $0x80"
+		  : "=a" (res)
+		  : "0"(SYS_futex), "b" (addr), "c"(op),
+		    "d"(val), "S"(0)
+		  : "memory");
+  return res;
+}
+
+# endif /* __PIC__ */
+
+static inline void
+futex_wait (int *addr, int val)
+{
+  long res = sys_futex0 (addr, gomp_futex_wait, val);
+  if (__builtin_expect (res == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wait, val);
+    }
+}
+
+static inline void
+futex_wake (int *addr, int count)
+{
+  long res = sys_futex0 (addr, gomp_futex_wake, count);
+  if (__builtin_expect (res == -ENOSYS, 0))
+    {
+      gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG;
+      gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG;
+      sys_futex0 (addr, gomp_futex_wake, count);
+    }
+}
+
+#endif /* __x86_64__ */
+
+static inline void
+cpu_relax (void)
+{
+  __asm volatile ("rep; nop" : : : "memory");
+}
diff --git a/gcc-4.7/libgomp/config/mingw32/proc.c b/gcc-4.7/libgomp/config/mingw32/proc.c
new file mode 100644
index 000000000..03d101a59
--- /dev/null
+++ b/gcc-4.7/libgomp/config/mingw32/proc.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+   Contributed by Danny Smith <dannysmith@users.sourceforge.net>
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains system specific routines related to counting
+   online processors and dynamic load balancing.  It is expected that
+   a system may well want to write special versions of each of these.
+
+   The following implementation uses win32 API routines.  */
+
+#include "libgomp.h"
+#include <windows.h>
+
+/* Count the CPU's currently available to this process.  */
+static unsigned int
+count_avail_process_cpus ()
+{
+  DWORD_PTR process_cpus;
+  DWORD_PTR system_cpus;
+
+  if (GetProcessAffinityMask (GetCurrentProcess (),
+			      &process_cpus, &system_cpus))
+    {
+      unsigned int count;
+      for (count = 0; process_cpus != 0; process_cpus >>= 1)  
+	if (process_cpus & 1)
+	  count++;
+      return count;
+    }
+  return 1;
+}
+
+/* At startup, determine the default number of threads.  It would seem
+   this should be related to the number of cpus available to the process.  */
+
+void
+gomp_init_num_threads (void)
+{
+  gomp_global_icv.nthreads_var = count_avail_process_cpus ();
+}
+
+/* When OMP_DYNAMIC is set, at thread launch determine the number of
+   threads we should spawn for this team.  FIXME:  How do we adjust for
+   load average on MS Windows?  */
+
+unsigned
+gomp_dynamic_max_threads (void)
+{
+  unsigned int n_onln = count_avail_process_cpus ();
+  unsigned int nthreads_var = gomp_icv (false)->nthreads_var;
+  return n_onln > nthreads_var ? nthreads_var : n_onln;
+}
+
+int
+omp_get_num_procs (void)
+{
+  return count_avail_process_cpus ();
+}
+
+ialias (omp_get_num_procs)
diff --git a/gcc-4.7/libgomp/config/mingw32/time.c b/gcc-4.7/libgomp/config/mingw32/time.c
new file mode 100644
index 000000000..a89815544
--- /dev/null
+++ b/gcc-4.7/libgomp/config/mingw32/time.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2006, 2009 Free Software Foundation, Inc.
+   Contributed by Francois-Xavier Coudert <coudert@clipper.ens.fr>
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains timer routines for mingw32.  */
+
+#include "libgomp.h"
+#include <unistd.h>
+#include <sys/timeb.h>
+
+double
+omp_get_wtime (void)
+{
+  struct _timeb timebuf;
+  _ftime (&timebuf);
+  return (timebuf.time + (long)(timebuf.millitm) / 1e3);
+}
+
+double
+omp_get_wtick (void)
+{
+  return 1e-3;
+}
+
+ialias (omp_get_wtime)
+ialias (omp_get_wtick)
diff --git a/gcc-4.7/libgomp/config/osf/sem.h b/gcc-4.7/libgomp/config/osf/sem.h
new file mode 100644
index 000000000..7dcb542d5
--- /dev/null
+++ b/gcc-4.7/libgomp/config/osf/sem.h
@@ -0,0 +1,53 @@
+/* Copyright (C) 2011 Free Software Foundation, Inc.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a variant of config/posix/sem.h for Tru64 UNIX.  The librt
+   sem_init implementation assumes int (4-byte) alignment for sem_t, while
+   the type only requires short (2-byte) alignment.  This mismatch causes
+   lots of unaligned access warnings from the kernel, so enforce that
+   alignment.  */
+
+#ifndef GOMP_SEM_H
+#define GOMP_SEM_H 1
+
+#include <semaphore.h>
+
+typedef sem_t gomp_sem_t __attribute__((aligned (__alignof__ (int))));
+
+static inline void gomp_sem_init (gomp_sem_t *sem, int value)
+{
+  sem_init (sem, 0, value);
+}
+
+extern void gomp_sem_wait (gomp_sem_t *sem);
+
+static inline void gomp_sem_post (gomp_sem_t *sem)
+{
+  sem_post (sem);
+}
+
+static inline void gomp_sem_destroy (gomp_sem_t *sem)
+{
+  sem_destroy (sem);
+}
+#endif /* GOMP_SEM_H  */
diff --git a/gcc-4.7/libgomp/config/posix/affinity.c b/gcc-4.7/libgomp/config/posix/affinity.c
new file mode 100644
index 000000000..25865fcb5
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/affinity.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2006, 2009 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a generic stub implementation of a CPU affinity setting.  */
+
+#include "libgomp.h"
+
+void
+gomp_init_affinity (void)
+{
+}
+
+void
+gomp_init_thread_affinity (pthread_attr_t *attr)
+{
+  (void) attr;
+}
diff --git a/gcc-4.7/libgomp/config/posix/bar.c b/gcc-4.7/libgomp/config/posix/bar.c
new file mode 100644
index 000000000..0101d1f25
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/bar.c
@@ -0,0 +1,178 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default implementation of a barrier synchronization mechanism
+   for libgomp.  This type is private to the library.  Note that we rely on
+   being able to adjust the barrier count while threads are blocked, so the
+   POSIX pthread_barrier_t won't work.  */
+
+#include "libgomp.h"
+
+
+void
+gomp_barrier_init (gomp_barrier_t *bar, unsigned count)
+{
+  gomp_mutex_init (&bar->mutex1);
+#ifndef HAVE_SYNC_BUILTINS
+  gomp_mutex_init (&bar->mutex2);
+#endif
+  gomp_sem_init (&bar->sem1, 0);
+  gomp_sem_init (&bar->sem2, 0);
+  bar->total = count;
+  bar->arrived = 0;
+  bar->generation = 0;
+}
+
+void
+gomp_barrier_destroy (gomp_barrier_t *bar)
+{
+  /* Before destroying, make sure all threads have left the barrier.  */
+  gomp_mutex_lock (&bar->mutex1);
+  gomp_mutex_unlock (&bar->mutex1);
+
+  gomp_mutex_destroy (&bar->mutex1);
+#ifndef HAVE_SYNC_BUILTINS
+  gomp_mutex_destroy (&bar->mutex2);
+#endif
+  gomp_sem_destroy (&bar->sem1);
+  gomp_sem_destroy (&bar->sem2);
+}
+
+void
+gomp_barrier_reinit (gomp_barrier_t *bar, unsigned count)
+{
+  gomp_mutex_lock (&bar->mutex1);
+  bar->total = count;
+  gomp_mutex_unlock (&bar->mutex1);
+}
+
+void
+gomp_barrier_wait_end (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  unsigned int n;
+
+  if (state & 1)
+    {
+      n = --bar->arrived;
+      if (n > 0)
+	{
+	  do
+	    gomp_sem_post (&bar->sem1);
+	  while (--n != 0);
+	  gomp_sem_wait (&bar->sem2);
+	}
+      gomp_mutex_unlock (&bar->mutex1);
+    }
+  else
+    {
+      gomp_mutex_unlock (&bar->mutex1);
+      gomp_sem_wait (&bar->sem1);
+
+#ifdef HAVE_SYNC_BUILTINS
+      n = __sync_add_and_fetch (&bar->arrived, -1);
+#else
+      gomp_mutex_lock (&bar->mutex2);
+      n = --bar->arrived;
+      gomp_mutex_unlock (&bar->mutex2);
+#endif
+
+      if (n == 0)
+	gomp_sem_post (&bar->sem2);
+    }
+}
+
+void
+gomp_barrier_wait (gomp_barrier_t *barrier)
+{
+  gomp_barrier_wait_end (barrier, gomp_barrier_wait_start (barrier));
+}
+
+void
+gomp_team_barrier_wait_end (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  unsigned int n;
+
+  if (state & 1)
+    {
+      n = --bar->arrived;
+      struct gomp_thread *thr = gomp_thread ();
+      struct gomp_team *team = thr->ts.team;
+
+      if (team->task_count)
+	{
+	  gomp_barrier_handle_tasks (state);
+	  if (n > 0)
+	    gomp_sem_wait (&bar->sem2);
+	  gomp_mutex_unlock (&bar->mutex1);
+	  return;
+	}
+
+      bar->generation = state + 3;
+      if (n > 0)
+	{
+	  do
+	    gomp_sem_post (&bar->sem1);
+	  while (--n != 0);
+	  gomp_sem_wait (&bar->sem2);
+	}
+      gomp_mutex_unlock (&bar->mutex1);
+    }
+  else
+    {
+      gomp_mutex_unlock (&bar->mutex1);
+      do
+	{
+	  gomp_sem_wait (&bar->sem1);
+	  if (bar->generation & 1)
+	    gomp_barrier_handle_tasks (state);
+	}
+      while (bar->generation != state + 4);
+
+#ifdef HAVE_SYNC_BUILTINS
+      n = __sync_add_and_fetch (&bar->arrived, -1);
+#else
+      gomp_mutex_lock (&bar->mutex2);
+      n = --bar->arrived;
+      gomp_mutex_unlock (&bar->mutex2);
+#endif
+
+      if (n == 0)
+	gomp_sem_post (&bar->sem2);
+    }
+}
+
+void
+gomp_team_barrier_wait (gomp_barrier_t *barrier)
+{
+  gomp_team_barrier_wait_end (barrier, gomp_barrier_wait_start (barrier));
+}
+
+void
+gomp_team_barrier_wake (gomp_barrier_t *bar, int count)
+{
+  if (count == 0)
+    count = bar->total - 1;
+  while (count-- > 0)
+    gomp_sem_post (&bar->sem1);
+}
diff --git a/gcc-4.7/libgomp/config/posix/bar.h b/gcc-4.7/libgomp/config/posix/bar.h
new file mode 100644
index 000000000..ac8ae6f85
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/bar.h
@@ -0,0 +1,115 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default implementation of a barrier synchronization mechanism
+   for libgomp.  This type is private to the library.  Note that we rely on
+   being able to adjust the barrier count while threads are blocked, so the
+   POSIX pthread_barrier_t won't work.  */
+
+#ifndef GOMP_BARRIER_H
+#define GOMP_BARRIER_H 1
+
+#include <pthread.h>
+
+typedef struct
+{
+  gomp_mutex_t mutex1;
+#ifndef HAVE_SYNC_BUILTINS
+  gomp_mutex_t mutex2;
+#endif
+  gomp_sem_t sem1;
+  gomp_sem_t sem2;
+  unsigned total;
+  unsigned arrived;
+  unsigned generation;
+} gomp_barrier_t;
+typedef unsigned int gomp_barrier_state_t;
+
+extern void gomp_barrier_init (gomp_barrier_t *, unsigned);
+extern void gomp_barrier_reinit (gomp_barrier_t *, unsigned);
+extern void gomp_barrier_destroy (gomp_barrier_t *);
+
+extern void gomp_barrier_wait (gomp_barrier_t *);
+extern void gomp_barrier_wait_end (gomp_barrier_t *, gomp_barrier_state_t);
+extern void gomp_team_barrier_wait (gomp_barrier_t *);
+extern void gomp_team_barrier_wait_end (gomp_barrier_t *,
+					gomp_barrier_state_t);
+extern void gomp_team_barrier_wake (gomp_barrier_t *, int);
+
+static inline gomp_barrier_state_t
+gomp_barrier_wait_start (gomp_barrier_t *bar)
+{
+  unsigned int ret;
+  gomp_mutex_lock (&bar->mutex1);
+  ret = bar->generation & ~3;
+  ret += ++bar->arrived == bar->total;
+  return ret;
+}
+
+static inline bool
+gomp_barrier_last_thread (gomp_barrier_state_t state)
+{
+  return state & 1;
+}
+
+static inline void
+gomp_barrier_wait_last (gomp_barrier_t *bar)
+{
+  gomp_barrier_wait (bar);
+}
+
+/* All the inlines below must be called with team->task_lock
+   held.  */
+
+static inline void
+gomp_team_barrier_set_task_pending (gomp_barrier_t *bar)
+{
+  bar->generation |= 1;
+}
+
+static inline void
+gomp_team_barrier_clear_task_pending (gomp_barrier_t *bar)
+{
+  bar->generation &= ~1;
+}
+
+static inline void
+gomp_team_barrier_set_waiting_for_tasks (gomp_barrier_t *bar)
+{
+  bar->generation |= 2;
+}
+
+static inline bool
+gomp_team_barrier_waiting_for_tasks (gomp_barrier_t *bar)
+{
+  return (bar->generation & 2) != 0;
+}
+
+static inline void
+gomp_team_barrier_done (gomp_barrier_t *bar, gomp_barrier_state_t state)
+{
+  bar->generation = (state & ~3) + 4;
+}
+
+#endif /* GOMP_BARRIER_H */
diff --git a/gcc-4.7/libgomp/config/posix/lock.c b/gcc-4.7/libgomp/config/posix/lock.c
new file mode 100644
index 000000000..8cd715e64
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/lock.c
@@ -0,0 +1,307 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default PTHREADS implementation of the public OpenMP
+   locking primitives.
+
+   Because OpenMP uses different entry points for normal and recursive
+   locks, and pthreads uses only one entry point, a system may be able
+   to do better and streamline the locking as well as reduce the size
+   of the types exported.  */
+
+/* We need Unix98 extensions to get recursive locks.  On Tru64 UNIX V4.0F,
+   the declarations are available without _XOPEN_SOURCE, which actually
+   breaks compilation.  */
+#ifndef __osf__
+#define _XOPEN_SOURCE 500
+#endif
+
+#include "libgomp.h"
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+void
+gomp_init_lock_30 (omp_lock_t *lock)
+{
+  pthread_mutex_init (lock, NULL);
+}
+
+void
+gomp_destroy_lock_30 (omp_lock_t *lock)
+{
+  pthread_mutex_destroy (lock);
+}
+
+void
+gomp_set_lock_30 (omp_lock_t *lock)
+{
+  pthread_mutex_lock (lock);
+}
+
+void
+gomp_unset_lock_30 (omp_lock_t *lock)
+{
+  pthread_mutex_unlock (lock);
+}
+
+int
+gomp_test_lock_30 (omp_lock_t *lock)
+{
+  return pthread_mutex_trylock (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  pthread_mutex_init (&lock->lock, NULL);
+  lock->count = 0;
+  lock->owner = NULL;
+}
+
+void
+gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  pthread_mutex_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+
+  if (lock->owner != me)
+    {
+      pthread_mutex_lock (&lock->lock);
+      lock->owner = me;
+    }
+  lock->count++;
+}
+
+void
+gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  if (--lock->count == 0)
+    {
+      lock->owner = NULL;
+      pthread_mutex_unlock (&lock->lock);
+    }
+}
+
+int
+gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+
+  if (lock->owner != me)
+    {
+      if (pthread_mutex_trylock (&lock->lock) != 0)
+	return 0;
+      lock->owner = me;
+    }
+
+  return ++lock->count;
+}
+
+#else
+
+void
+gomp_init_lock_30 (omp_lock_t *lock)
+{
+  sem_init (lock, 0, 1);
+}
+
+void
+gomp_destroy_lock_30 (omp_lock_t *lock)
+{
+  sem_destroy (lock);
+}
+
+void
+gomp_set_lock_30 (omp_lock_t *lock)
+{
+  while (sem_wait (lock) != 0)
+    ;
+}
+
+void
+gomp_unset_lock_30 (omp_lock_t *lock)
+{
+  sem_post (lock);
+}
+
+int
+gomp_test_lock_30 (omp_lock_t *lock)
+{
+  return sem_trywait (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  sem_init (&lock->lock, 0, 1);
+  lock->count = 0;
+  lock->owner = NULL;
+}
+
+void
+gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  sem_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+
+  if (lock->owner != me)
+    {
+      while (sem_wait (&lock->lock) != 0)
+	;
+      lock->owner = me;
+    }
+  lock->count++;
+}
+
+void
+gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  if (--lock->count == 0)
+    {
+      lock->owner = NULL;
+      sem_post (&lock->lock);
+    }
+}
+
+int
+gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
+{
+  void *me = gomp_icv (true);
+
+  if (lock->owner != me)
+    {
+      if (sem_trywait (&lock->lock) != 0)
+	return 0;
+      lock->owner = me;
+    }
+
+  return ++lock->count;
+}
+#endif
+
+#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
+void
+gomp_init_lock_25 (omp_lock_25_t *lock)
+{
+  pthread_mutex_init (lock, NULL);
+}
+
+void
+gomp_destroy_lock_25 (omp_lock_25_t *lock)
+{
+  pthread_mutex_destroy (lock);
+}
+
+void
+gomp_set_lock_25 (omp_lock_25_t *lock)
+{
+  pthread_mutex_lock (lock);
+}
+
+void
+gomp_unset_lock_25 (omp_lock_25_t *lock)
+{
+  pthread_mutex_unlock (lock);
+}
+
+int
+gomp_test_lock_25 (omp_lock_25_t *lock)
+{
+  return pthread_mutex_trylock (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  pthread_mutexattr_t attr;
+
+  pthread_mutexattr_init (&attr);
+  pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
+  pthread_mutex_init (&lock->lock, &attr);
+  lock->count = 0;
+  pthread_mutexattr_destroy (&attr);
+}
+
+void
+gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  pthread_mutex_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  pthread_mutex_lock (&lock->lock);
+  lock->count++;
+}
+
+void
+gomp_unset_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  lock->count--;
+  pthread_mutex_unlock (&lock->lock);
+}
+
+int
+gomp_test_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+  if (pthread_mutex_trylock (&lock->lock) == 0)
+    return ++lock->count;
+  return 0;
+}
+
+omp_lock_symver (omp_init_lock)
+omp_lock_symver (omp_destroy_lock)
+omp_lock_symver (omp_set_lock)
+omp_lock_symver (omp_unset_lock)
+omp_lock_symver (omp_test_lock)
+omp_lock_symver (omp_init_nest_lock)
+omp_lock_symver (omp_destroy_nest_lock)
+omp_lock_symver (omp_set_nest_lock)
+omp_lock_symver (omp_unset_nest_lock)
+omp_lock_symver (omp_test_nest_lock)
+
+#else
+
+ialias (omp_init_lock)
+ialias (omp_init_nest_lock)
+ialias (omp_destroy_lock)
+ialias (omp_destroy_nest_lock)
+ialias (omp_set_lock)
+ialias (omp_set_nest_lock)
+ialias (omp_unset_lock)
+ialias (omp_unset_nest_lock)
+ialias (omp_test_lock)
+ialias (omp_test_nest_lock)
+
+#endif
diff --git a/gcc-4.7/libgomp/config/posix/mutex.c b/gcc-4.7/libgomp/config/posix/mutex.c
new file mode 100644
index 000000000..39bb64da0
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/mutex.c
@@ -0,0 +1 @@
+/* Everything is in the header.  */
diff --git a/gcc-4.7/libgomp/config/posix/mutex.h b/gcc-4.7/libgomp/config/posix/mutex.h
new file mode 100644
index 000000000..b6617a4bd
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/mutex.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 2005, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default PTHREADS implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  */
+
+#ifndef GOMP_MUTEX_H
+#define GOMP_MUTEX_H 1
+
+#include <pthread.h>
+
+typedef pthread_mutex_t gomp_mutex_t;
+
+#define GOMP_MUTEX_INIT_0 0
+
+static inline void gomp_mutex_init (gomp_mutex_t *mutex)
+{
+  pthread_mutex_init (mutex, NULL);
+}
+
+static inline void gomp_mutex_lock (gomp_mutex_t *mutex)
+{
+  pthread_mutex_lock (mutex);
+}
+
+static inline void gomp_mutex_unlock (gomp_mutex_t *mutex)
+{
+   pthread_mutex_unlock (mutex);
+}
+
+static inline void gomp_mutex_destroy (gomp_mutex_t *mutex)
+{
+  pthread_mutex_destroy (mutex);
+}
+
+#endif /* GOMP_MUTEX_H */
diff --git a/gcc-4.7/libgomp/config/posix/omp-lock.h b/gcc-4.7/libgomp/config/posix/omp-lock.h
new file mode 100644
index 000000000..e51dc271f
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/omp-lock.h
@@ -0,0 +1,23 @@
+/* This header is used during the build process to find the size and 
+   alignment of the public OpenMP locks, so that we can export data
+   structures without polluting the namespace.
+
+   In this default POSIX implementation, we used to map the two locks to the
+   same PTHREADS primitive, but for OpenMP 3.0 sem_t needs to be used
+   instead, as pthread_mutex_unlock should not be called by different
+   thread than the one that called pthread_mutex_lock.  */
+
+#include <pthread.h>
+#include <semaphore.h>
+
+typedef pthread_mutex_t omp_lock_25_t;
+typedef struct { pthread_mutex_t lock; int count; } omp_nest_lock_25_t;
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+/* If we don't have working semaphores, we'll make all explicit tasks
+   tied to the creating thread.  */
+typedef pthread_mutex_t omp_lock_t;
+typedef struct { pthread_mutex_t lock; int count; void *owner; } omp_nest_lock_t;
+#else
+typedef sem_t omp_lock_t;
+typedef struct { sem_t lock; int count; void *owner; } omp_nest_lock_t;
+#endif
diff --git a/gcc-4.7/libgomp/config/posix/proc.c b/gcc-4.7/libgomp/config/posix/proc.c
new file mode 100644
index 000000000..aacf41e52
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/proc.c
@@ -0,0 +1,101 @@
+/* Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains system specific routines related to counting
+   online processors and dynamic load balancing.  It is expected that
+   a system may well want to write special versions of each of these.
+
+   The following implementation uses a mix of POSIX and BSD routines.  */
+
+#include "libgomp.h"
+#include <unistd.h>
+#include <stdlib.h>
+#ifdef HAVE_GETLOADAVG
+# ifdef HAVE_SYS_LOADAVG_H
+#  include <sys/loadavg.h>
+# endif
+#endif
+
+
+/* At startup, determine the default number of threads.  It would seem
+   this should be related to the number of cpus online.  */
+
+void
+gomp_init_num_threads (void)
+{
+#ifdef _SC_NPROCESSORS_ONLN
+  gomp_global_icv.nthreads_var = sysconf (_SC_NPROCESSORS_ONLN);
+#endif
+}
+
+/* When OMP_DYNAMIC is set, at thread launch determine the number of
+   threads we should spawn for this team.  */
+/* ??? I have no idea what best practice for this is.  Surely some
+   function of the number of processors that are *still* online and
+   the load average.  Here I use the number of processors online
+   minus the 15 minute load average.  */
+
+unsigned
+gomp_dynamic_max_threads (void)
+{
+  unsigned n_onln, loadavg;
+  unsigned nthreads_var = gomp_icv (false)->nthreads_var;
+
+#ifdef _SC_NPROCESSORS_ONLN
+  n_onln = sysconf (_SC_NPROCESSORS_ONLN);
+  if (n_onln > nthreads_var)
+    n_onln = nthreads_var;
+#else
+  n_onln = nthreads_var;
+#endif
+
+  loadavg = 0;
+#ifdef HAVE_GETLOADAVG
+  {
+    double dloadavg[3];
+    if (getloadavg (dloadavg, 3) == 3)
+      {
+	/* Add 0.1 to get a kind of biased rounding.  */
+	loadavg = dloadavg[2] + 0.1;
+      }
+  }
+#endif
+
+  if (loadavg >= n_onln)
+    return 1;
+  else
+    return n_onln - loadavg;
+}
+
+int
+omp_get_num_procs (void)
+{
+#ifdef _SC_NPROCESSORS_ONLN
+  return sysconf (_SC_NPROCESSORS_ONLN);
+#else
+  return gomp_icv (false)->nthreads_var;
+#endif
+}
+
+ialias (omp_get_num_procs)
diff --git a/gcc-4.7/libgomp/config/posix/ptrlock.c b/gcc-4.7/libgomp/config/posix/ptrlock.c
new file mode 100644
index 000000000..39bb64da0
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/ptrlock.c
@@ -0,0 +1 @@
+/* Everything is in the header.  */
diff --git a/gcc-4.7/libgomp/config/posix/ptrlock.h b/gcc-4.7/libgomp/config/posix/ptrlock.h
new file mode 100644
index 000000000..246e1caac
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/ptrlock.h
@@ -0,0 +1,66 @@
+/* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Jakub Jelinek <jakub@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is a Linux specific implementation of a mutex synchronization
+   mechanism for libgomp.  This type is private to the library.  This
+   implementation uses atomic instructions and the futex syscall.  */
+
+#ifndef GOMP_PTRLOCK_H
+#define GOMP_PTRLOCK_H 1
+
+typedef struct { void *ptr; gomp_mutex_t lock; } gomp_ptrlock_t;
+
+static inline void gomp_ptrlock_init (gomp_ptrlock_t *ptrlock, void *ptr)
+{
+  ptrlock->ptr = ptr;
+  gomp_mutex_init (&ptrlock->lock);
+}
+
+static inline void *gomp_ptrlock_get (gomp_ptrlock_t *ptrlock)
+{
+  if (ptrlock->ptr != NULL)
+    return ptrlock->ptr;
+
+  gomp_mutex_lock (&ptrlock->lock);
+  if (ptrlock->ptr != NULL)
+    {
+      gomp_mutex_unlock (&ptrlock->lock);
+      return ptrlock->ptr;
+    }
+
+  return NULL;
+}
+
+static inline void gomp_ptrlock_set (gomp_ptrlock_t *ptrlock, void *ptr)
+{
+  ptrlock->ptr = ptr;
+  gomp_mutex_unlock (&ptrlock->lock);
+}
+
+static inline void gomp_ptrlock_destroy (gomp_ptrlock_t *ptrlock)
+{
+  gomp_mutex_destroy (&ptrlock->lock);
+}
+
+#endif /* GOMP_PTRLOCK_H */
diff --git a/gcc-4.7/libgomp/config/posix/sem.c b/gcc-4.7/libgomp/config/posix/sem.c
new file mode 100644
index 000000000..e05767513
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/sem.c
@@ -0,0 +1,123 @@
+/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default POSIX 1003.1b implementation of a semaphore
+   synchronization mechanism for libgomp.  This type is private to
+   the library.
+
+   This is a bit heavy weight for what we need, in that we're not
+   interested in sem_wait as a cancelation point, but it's not too
+   bad for a default.  */
+
+#include "libgomp.h"
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+#include <stdlib.h>
+
+void gomp_sem_init (gomp_sem_t *sem, int value)
+{
+  int ret;
+
+  ret = pthread_mutex_init (&sem->mutex, NULL);
+  if (ret)
+    return;
+
+  ret = pthread_cond_init (&sem->cond, NULL);
+  if (ret)
+    return;
+
+  sem->value = value;
+}
+
+void gomp_sem_wait (gomp_sem_t *sem)
+{
+  int ret;
+
+  ret = pthread_mutex_lock (&sem->mutex);
+  if (ret)
+    return;
+
+  if (sem->value > 0)
+    {
+      sem->value--;
+      ret = pthread_mutex_unlock (&sem->mutex);
+      return;
+    }
+
+  while (sem->value <= 0)
+    {
+      ret = pthread_cond_wait (&sem->cond, &sem->mutex);
+      if (ret)
+	{
+	  pthread_mutex_unlock (&sem->mutex);
+	  return;
+	}
+    }
+
+  sem->value--;
+  ret = pthread_mutex_unlock (&sem->mutex);
+  return;
+}
+
+void gomp_sem_post (gomp_sem_t *sem)
+{
+  int ret;
+
+  ret = pthread_mutex_lock (&sem->mutex);
+  if (ret)
+    return;
+
+  sem->value++;
+
+  ret = pthread_mutex_unlock (&sem->mutex);
+  if (ret)
+    return;
+
+  ret = pthread_cond_signal (&sem->cond);
+
+  return;
+}
+
+void gomp_sem_destroy (gomp_sem_t *sem)
+{
+  int ret;
+
+  ret = pthread_mutex_destroy (&sem->mutex);
+  if (ret)
+    return;
+
+  ret = pthread_cond_destroy (&sem->cond);
+
+  return;
+}
+#else /* HAVE_BROKEN_POSIX_SEMAPHORES  */
+void
+gomp_sem_wait (gomp_sem_t *sem)
+{
+  /* With POSIX, the wait can be canceled by signals.  We don't want that.
+     It is expected that the return value here is -1 and errno is EINTR.  */
+  while (sem_wait (sem) != 0)
+    continue;
+}
+#endif
diff --git a/gcc-4.7/libgomp/config/posix/sem.h b/gcc-4.7/libgomp/config/posix/sem.h
new file mode 100644
index 000000000..b68230de0
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/sem.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This is the default POSIX 1003.1b implementation of a semaphore
+   synchronization mechanism for libgomp.  This type is private to
+   the library.
+
+   This is a bit heavy weight for what we need, in that we're not
+   interested in sem_wait as a cancelation point, but it's not too
+   bad for a default.  */
+
+#ifndef GOMP_SEM_H
+#define GOMP_SEM_H 1
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(default)
+#endif
+
+#include <semaphore.h>
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+#include <pthread.h>
+
+struct gomp_sem
+{
+  pthread_mutex_t	mutex;
+  pthread_cond_t	cond;
+  int			value;
+};
+
+typedef struct gomp_sem gomp_sem_t;
+
+extern void gomp_sem_init (gomp_sem_t *sem, int value);
+
+extern void gomp_sem_wait (gomp_sem_t *sem);
+
+extern void gomp_sem_post (gomp_sem_t *sem);
+
+extern void gomp_sem_destroy (gomp_sem_t *sem);
+
+#else /* HAVE_BROKEN_POSIX_SEMAPHORES  */
+
+typedef sem_t gomp_sem_t;
+
+static inline void gomp_sem_init (gomp_sem_t *sem, int value)
+{
+  sem_init (sem, 0, value);
+}
+
+extern void gomp_sem_wait (gomp_sem_t *sem);
+
+static inline void gomp_sem_post (gomp_sem_t *sem)
+{
+  sem_post (sem);
+}
+
+static inline void gomp_sem_destroy (gomp_sem_t *sem)
+{
+  sem_destroy (sem);
+}
+#endif /* doesn't HAVE_BROKEN_POSIX_SEMAPHORES  */
+#endif /* GOMP_SEM_H  */
diff --git a/gcc-4.7/libgomp/config/posix/time.c b/gcc-4.7/libgomp/config/posix/time.c
new file mode 100644
index 000000000..eb196f648
--- /dev/null
+++ b/gcc-4.7/libgomp/config/posix/time.c
@@ -0,0 +1,78 @@
+/* Copyright (C) 2005, 2009 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   Libgomp 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 General Public License for
+   more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* This file contains system specific timer routines.  It is expected that
+   a system may well want to write special versions of each of these.
+
+   The following implementation uses the most simple POSIX routines.
+   If present, POSIX 4 clocks should be used instead.  */
+
+#include "libgomp.h"
+#include <unistd.h>
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+#  include <sys/time.h>
+# else
+#  include <time.h>
+# endif
+#endif
+
+
+double
+omp_get_wtime (void)
+{
+#ifdef HAVE_CLOCK_GETTIME
+  struct timespec ts;
+# ifdef CLOCK_MONOTONIC
+  if (clock_gettime (CLOCK_MONOTONIC, &ts) < 0)
+# endif
+    clock_gettime (CLOCK_REALTIME, &ts);
+  return ts.tv_sec + ts.tv_nsec / 1e9;
+#else
+  struct timeval tv;
+  gettimeofday (&tv, NULL);
+  return tv.tv_sec + tv.tv_usec / 1e6;
+#endif
+}
+
+double
+omp_get_wtick (void)
+{
+#ifdef HAVE_CLOCK_GETTIME
+  struct timespec ts;
+# ifdef CLOCK_MONOTONIC
+  if (clock_getres (CLOCK_MONOTONIC, &ts) < 0)
+# endif
+    clock_getres (CLOCK_REALTIME, &ts);
+  return ts.tv_sec + ts.tv_nsec / 1e9;
+#else
+  return 1.0 / sysconf(_SC_CLK_TCK);
+#endif
+}
+
+ialias (omp_get_wtime)
+ialias (omp_get_wtick)