set default newlib dir's structure

git-svn-id: svn://kolibrios.org@4874 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/libc/include/gthr.h

@@ -0,0 +1,103 @@
+/* Threads compatibility routines for libgcc2.  */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1998, 2004, 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_H
+#define GCC_GTHR_H
+
+typedef unsigned int __gthread_key_t;
+
+typedef struct {
+  volatile int done;
+  int started;
+} __gthread_once_t;
+
+typedef struct {
+  volatile int counter;
+} __gthread_mutex_t;
+
+
+void *tls_alloc(void);
+
+static int __gthread_mutex_lock (__gthread_mutex_t *mutex)
+{
+    __mutex_lock(&mutex->counter);
+    return 0;
+};
+
+static int __gthread_mutex_unlock (__gthread_mutex_t *mutex)
+{
+    mutex->counter = 0;
+    return 0;
+};
+
+static inline int __gthread_key_create (__gthread_key_t *__key,
+              void (*__dtor) (void *) __attribute__((unused)))
+{
+    int __status = 0;
+    void *__tls_index = tls_alloc();
+    if (__tls_index != NULL)
+    {
+        *__key = (unsigned int)__tls_index;
+
+#ifdef MINGW32_SUPPORTS_MT_EH               /* FIXME */
+      /* Mingw runtime will run the dtors in reverse order for each thread
+         when the thread exits.  */
+//      __status = __mingwthr_key_dtor (*__key, __dtor);
+#endif
+
+    }
+    else
+        __status = (int) ENOMEM;
+    return __status;
+}
+
+
+static inline void *
+__gthread_getspecific (__gthread_key_t __key)
+{
+    void *val;
+    __asm__ __volatile__(
+    "movl %%fs:(%1), %0"
+    :"=r"(val)
+    :"r"(__key));
+
+  return val;
+};
+
+static inline int
+__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
+{
+    if(!(__key & 3))
+    {
+        __asm__ __volatile__(
+        "movl %0, %%fs:(%1)"
+        ::"r"(__ptr),"r"(__key));
+        return 0;
+    }
+    else return EINVAL;
+}
+
+
+#endif