--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gthr-solaris.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,561 @@
+/* Threads compatibility routines for libgcc2 and libobjc.  */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1999, 2000, 2004, 2005, 2006, 2008, 2009
+   Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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.
+
+GCC 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 GCC_GTHR_SOLARIS_H
+#define GCC_GTHR_SOLARIS_H
+
+/* Solaris threads as found in Solaris 2.[456].
+   Actually these are Unix International (UI) threads, but I don't
+   know if anyone else implements these.  */
+
+#define __GTHREADS 1
+
+#include <thread.h>
+#include <errno.h>
+
+#ifdef __cplusplus
+#define UNUSED(x)
+#else
+#define UNUSED(x) x __attribute__((unused))
+#endif
+
+typedef thread_key_t __gthread_key_t;
+typedef struct {
+  mutex_t mutex;
+  int once;
+} __gthread_once_t;
+typedef mutex_t __gthread_mutex_t;
+
+typedef struct {
+  long depth;
+  thread_t owner;
+  mutex_t actual;
+} __gthread_recursive_mutex_t;
+
+#define __GTHREAD_ONCE_INIT { DEFAULTMUTEX, 0 }
+#define __GTHREAD_MUTEX_INIT DEFAULTMUTEX
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
+
+#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+# define __gthrw(name) \
+  static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
+# define __gthrw_(name) __gthrw_ ## name
+#else
+# define __gthrw(name)
+# define __gthrw_(name) name
+#endif
+
+__gthrw(thr_keycreate)
+__gthrw(thr_getspecific)
+__gthrw(thr_setspecific)
+__gthrw(thr_create)
+__gthrw(thr_self)
+
+__gthrw(mutex_init)
+__gthrw(mutex_destroy)
+__gthrw(mutex_lock)
+__gthrw(mutex_trylock)
+__gthrw(mutex_unlock)
+
+#ifdef _LIBOBJC
+__gthrw(thr_exit)
+__gthrw(thr_getprio)
+__gthrw(thr_setprio)
+__gthrw(thr_yield)
+
+__gthrw(cond_init)
+__gthrw(cond_destroy)
+__gthrw(cond_wait)
+__gthrw(cond_broadcast)
+__gthrw(cond_signal)
+
+#endif
+
+#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
+
+/* This will not actually work in Solaris 2.5, since libc contains
+   dummy symbols of all thr_* routines.  */
+
+static inline int
+__gthread_active_p (void)
+{
+  static void *const __gthread_active_ptr = (void *) &__gthrw_(thr_create);
+  return __gthread_active_ptr != 0;
+}
+
+#else /* not SUPPORTS_WEAK */
+
+static inline int
+__gthread_active_p (void)
+{
+  return 1;
+}
+
+#endif /* SUPPORTS_WEAK */
+
+#ifdef _LIBOBJC
+
+/* Key structure for maintaining thread specific storage */
+static thread_key_t _objc_thread_storage;
+
+/* Thread local storage for a single thread */
+static void *thread_local_storage = NULL;
+
+/* Backend initialization functions */
+
+/* Initialize the threads subsystem.  */
+static inline int
+__gthread_objc_init_thread_system (void)
+{
+  /* Initialize the thread storage key.  */
+  if (__gthread_active_p ()
+      && __gthrw_(thr_keycreate) (&_objc_thread_storage, NULL) == 0)
+    return 0;
+
+  return -1;
+}
+
+/* Close the threads subsystem.  */
+static inline int
+__gthread_objc_close_thread_system (void)
+{
+  if (__gthread_active_p ())
+    return 0;
+  else
+    return -1;
+}
+
+/* Backend thread functions */
+
+/* Create a new thread of execution.  */
+static inline objc_thread_t
+__gthread_objc_thread_detach (void (*func)(void *), void *arg)
+{
+  objc_thread_t thread_id;
+  thread_t new_thread_id = 0;
+
+  if (!__gthread_active_p ())
+    return NULL;
+
+  if (__gthrw_(thr_create) (NULL, 0, (void *) func, arg,
+		  THR_DETACHED | THR_NEW_LWP,
+		  &new_thread_id) == 0)
+    thread_id = *(objc_thread_t *) &new_thread_id;
+  else
+    thread_id = NULL;
+
+  return thread_id;
+}
+
+/* Set the current thread's priority.  */
+static inline int
+__gthread_objc_thread_set_priority (int priority)
+{
+  int sys_priority = 0;
+
+  if (!__gthread_active_p ())
+    return -1;
+
+  switch (priority)
+    {
+    case OBJC_THREAD_INTERACTIVE_PRIORITY:
+      sys_priority = 300;
+      break;
+    default:
+    case OBJC_THREAD_BACKGROUND_PRIORITY:
+      sys_priority = 200;
+      break;
+    case OBJC_THREAD_LOW_PRIORITY:
+      sys_priority = 1000;
+      break;
+    }
+
+  /* Change priority */
+  if (__gthrw_(thr_setprio) (__gthrw_(thr_self) (), sys_priority) == 0)
+    return 0;
+  else
+    return -1;
+}
+
+/* Return the current thread's priority.  */
+static inline int
+__gthread_objc_thread_get_priority (void)
+{
+  int sys_priority;
+
+  if (!__gthread_active_p ())
+    return OBJC_THREAD_INTERACTIVE_PRIORITY;
+
+  if (__gthrw_(thr_getprio) (__gthrw_(thr_self) (), &sys_priority) == 0)
+    {
+      if (sys_priority >= 250)
+	return OBJC_THREAD_INTERACTIVE_PRIORITY;
+      else if (sys_priority >= 150)
+	return OBJC_THREAD_BACKGROUND_PRIORITY;
+      return OBJC_THREAD_LOW_PRIORITY;
+    }
+
+  /* Couldn't get priority.  */
+  return -1;
+}
+
+/* Yield our process time to another thread.  */
+static inline void
+__gthread_objc_thread_yield (void)
+{
+  if (__gthread_active_p ())
+    __gthrw_(thr_yield) ();
+}
+
+/* Terminate the current thread.  */
+static inline int
+__gthread_objc_thread_exit (void)
+{
+  if (__gthread_active_p ())
+    /* exit the thread */
+    __gthrw_(thr_exit) (&__objc_thread_exit_status);
+
+  /* Failed if we reached here */
+  return -1;
+}
+
+/* Returns an integer value which uniquely describes a thread.  */
+static inline objc_thread_t
+__gthread_objc_thread_id (void)
+{
+  if (__gthread_active_p ())
+    return (objc_thread_t) __gthrw_(thr_self) ();
+  else
+    return (objc_thread_t) 1;
+}
+
+/* Sets the thread's local storage pointer.  */
+static inline int
+__gthread_objc_thread_set_data (void *value)
+{
+  if (__gthread_active_p ())
+    {
+      if (__gthrw_(thr_setspecific) (_objc_thread_storage, value) == 0)
+	return 0;
+      else
+	return -1;
+    }
+  else
+    {
+      thread_local_storage = value;
+      return 0;
+    }
+}
+
+/* Returns the thread's local storage pointer.  */
+static inline void *
+__gthread_objc_thread_get_data (void)
+{
+  void *value = NULL;
+
+  if (__gthread_active_p ())
+    {
+      if (__gthrw_(thr_getspecific) (_objc_thread_storage, &value) == 0)
+	return value;
+      else
+	return NULL;
+    }
+  else
+    return thread_local_storage;
+}
+
+/* Backend mutex functions */
+
+/* Allocate a mutex.  */
+static inline int
+__gthread_objc_mutex_allocate (objc_mutex_t mutex)
+{
+  if (__gthread_active_p ()
+      && __gthrw_(mutex_init) ((mutex_t *) (&(mutex->backend)), USYNC_THREAD, 0))
+    return -1;
+
+  return 0;
+}
+
+/* Deallocate a mutex.  */
+static inline int
+__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
+{
+  if (__gthread_active_p ())
+    __gthrw_(mutex_destroy) ((mutex_t *) (&(mutex->backend)));
+
+  return 0;
+}
+
+/* Grab a lock on a mutex.  */
+static inline int
+__gthread_objc_mutex_lock (objc_mutex_t mutex)
+{
+  if (__gthread_active_p ()
+      && __gthrw_(mutex_lock) ((mutex_t *) (&(mutex->backend))) != 0)
+    return -1;
+
+  return 0;
+}
+
+/* Try to grab a lock on a mutex.  */
+static inline int
+__gthread_objc_mutex_trylock (objc_mutex_t mutex)
+{
+  if (__gthread_active_p ()
+      && __gthrw_(mutex_trylock) ((mutex_t *) (&(mutex->backend))) != 0)
+    return -1;
+
+  return 0;
+}
+
+/* Unlock the mutex */
+static inline int
+__gthread_objc_mutex_unlock (objc_mutex_t mutex)
+{
+  if (__gthread_active_p ()
+      && __gthrw_(mutex_unlock) ((mutex_t *) (&(mutex->backend))) != 0)
+    return -1;
+
+  return 0;
+}
+
+/* Backend condition mutex functions */
+
+/* Allocate a condition.  */
+static inline int
+__gthread_objc_condition_allocate (objc_condition_t condition)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(cond_init) ((cond_t *) (&(condition->backend)), USYNC_THREAD,
+		      NULL);
+  else
+    return 0;
+}
+
+/* Deallocate a condition.  */
+static inline int
+__gthread_objc_condition_deallocate (objc_condition_t condition)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(cond_destroy) ((cond_t *) (&(condition->backend)));
+  else
+    return 0;
+}
+
+/* Wait on the condition */
+static inline int
+__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(cond_wait) ((cond_t *) (&(condition->backend)),
+		      (mutex_t *) (&(mutex->backend)));
+  else
+    return 0;
+}
+
+/* Wake up all threads waiting on this condition.  */
+static inline int
+__gthread_objc_condition_broadcast (objc_condition_t condition)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(cond_broadcast) ((cond_t *) (&(condition->backend)));
+  else
+    return 0;
+}
+
+/* Wake up one thread waiting on this condition.  */
+static inline int
+__gthread_objc_condition_signal (objc_condition_t condition)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(cond_signal) ((cond_t *) (&(condition->backend)));
+  else
+    return 0;
+}
+
+#else /* _LIBOBJC */
+
+static inline int
+__gthread_once (__gthread_once_t *__once, void (*__func) (void))
+{
+  if (! __gthread_active_p ())
+    return -1;
+
+  if (__once == 0 || __func == 0)
+    return EINVAL;
+
+  if (__once->once == 0)
+    {
+      int __status = __gthrw_(mutex_lock) (&__once->mutex);
+      if (__status != 0)
+	return __status;
+      if (__once->once == 0)
+	{
+	  (*__func) ();
+	  __once->once++;
+	}
+      __gthrw_(mutex_unlock) (&__once->mutex);
+    }
+  return 0;
+}
+
+static inline int
+__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *))
+{
+  /* Solaris 2.5 contains thr_* routines no-op in libc, so test if we actually
+     got a reasonable key value, and if not, fail.  */
+  *__key = (__gthread_key_t)-1;
+  if (__gthrw_(thr_keycreate) (__key, __dtor) != 0
+      || *__key == (__gthread_key_t)-1)
+    return -1;
+  else
+    return 0;
+}
+
+static inline int
+__gthread_key_delete (__gthread_key_t UNUSED (__key))
+{
+  /* Not possible.  */
+  return -1;
+}
+
+static inline void *
+__gthread_getspecific (__gthread_key_t __key)
+{
+  void *__ptr;
+  if (__gthrw_(thr_getspecific) (__key, &__ptr) == 0)
+    return __ptr;
+  else
+    return 0;
+}
+
+static inline int
+__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
+{
+  return __gthrw_(thr_setspecific) (__key, (void *) __ptr);
+}
+
+static inline int
+__gthread_mutex_destroy (__gthread_mutex_t * UNUSED(__mutex))
+{
+  if (__gthread_active_p ())
+    return __gthrw_(mutex_destroy) (__mutex);
+  else
+    return 0;
+}
+
+static inline int
+__gthread_mutex_lock (__gthread_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(mutex_lock) (__mutex);
+  else
+    return 0;
+}
+
+static inline int
+__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(mutex_trylock) (__mutex);
+  else
+    return 0;
+}
+
+static inline int
+__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    return __gthrw_(mutex_unlock) (__mutex);
+  else
+    return 0;
+}
+
+static inline int
+__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
+{
+  __mutex->depth = 0;
+  __mutex->owner = (thread_t) 0;
+  return __gthrw_(mutex_init) (&__mutex->actual, USYNC_THREAD, 0);
+}
+
+static inline int
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    {
+      thread_t __me = __gthrw_(thr_self) ();
+
+      if (__mutex->owner != __me)
+	{
+	  __gthrw_(mutex_lock) (&__mutex->actual);
+	  __mutex->owner = __me;
+	}
+
+      __mutex->depth++;
+    }
+  return 0;
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    {
+      thread_t __me = __gthrw_(thr_self) ();
+
+      if (__mutex->owner != __me)
+	{
+	  if (__gthrw_(mutex_trylock) (&__mutex->actual))
+	    return 1;
+	  __mutex->owner = __me;
+	}
+
+      __mutex->depth++;
+    }
+  return 0;
+}
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
+{
+  if (__gthread_active_p ())
+    {
+      if (--__mutex->depth == 0)
+	{
+	   __mutex->owner = (thread_t) 0;
+	   __gthrw_(mutex_unlock) (&__mutex->actual);
+	}
+    }
+  return 0;
+}
+
+#endif /* _LIBOBJC */
+
+#undef UNUSED
+
+#endif /* ! GCC_GTHR_SOLARIS_H */