config.gcc (a29k*-*-rtems*, [...]): New targets.

        * config.gcc (a29k*-*-rtems*, arm*-*-rtems*, c4x-*-rtems*,
        h8300-*-rtems*, hppa1.1-*-rtems, *mips*-*-rtems*): New targets.
        * config.gcc (*-rtems*): Add support for gthr-rtems.h.
        * gthr-rtems.h, config/a29k/rtems.h, config/arm/rtems-elf.h,
        config/h8300/rtems.h, config/mips/rtems.h: New files.

From-SVN: r38094

1 files changed, 120 insertions, 0 deletions

diff --git a/gcc/gthr-rtems.h b/gcc/gthr-rtems.h
new file mode 100644
index 00000000000..05400c57a3c
--- /dev/null
+++ b/gcc/gthr-rtems.h
@@ -0,0 +1,120 @@
+/* RTEMS threads compatibily routines for libgcc2 and libobjc.
+   by: Rosimildo da Silva( rdasilva@connecttel.com ) */
+/* Compile this one with gcc.  */
+/* Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* As a special exception, if you link this library with other files,
+   some of which are compiled with GCC, to produce an executable,
+   this library does not by itself cause the resulting executable
+   to be covered by the GNU General Public License.
+   This exception does not however invalidate any other reasons why
+   the executable file might be covered by the GNU General Public License.  */
+
+#ifndef __gthr_rtems_h
+#define __gthr_rtems_h
+
+
+#define __GTHREADS 1
+
+#define __GTHREAD_ONCE_INIT  0
+#define __GTHREAD_MUTEX_INIT_FUNCTION  rtems_gxx_mutex_init
+
+/* avoid depedency on rtems specific headers */
+typedef void *__gthread_key_t;
+typedef int   __gthread_once_t;
+typedef void *__gthread_mutex_t;
+
+/*
+ * External functions provided by RTEMS. They are very similar to their POSIX 
+ * counterparts. A "Wrapper API" is being use to avoid dependency on any RTEMS
+ * header files.
+ */
+
+/* generic per task variables */
+extern int rtems_gxx_once (__gthread_once_t *once, void (*func) ());
+extern int rtems_gxx_key_create (__gthread_key_t *key, void (*dtor) (void *));
+extern int rtems_gxx_key_dtor (__gthread_key_t key, void *ptr);
+extern int rtems_gxx_key_delete (__gthread_key_t key);
+extern void *rtems_gxx_getspecific (__gthread_key_t key);
+extern int rtems_gxx_setspecific (__gthread_key_t key, const void *ptr);
+
+/* mutex support */
+extern void rtems_gxx_mutex_init (__gthread_mutex_t *mutex);
+extern int rtems_gxx_mutex_lock (__gthread_mutex_t *mutex);
+extern int rtems_gxx_mutex_trylock (__gthread_mutex_t *mutex);
+extern int rtems_gxx_mutex_unlock (__gthread_mutex_t *mutex);
+
+
+/* Wrapper calls */
+static inline int
+__gthread_once (__gthread_once_t *once, void (*func) ())
+{
+   return rtems_gxx_once( once, func );
+}
+
+static inline int
+__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
+{
+  return rtems_gxx_key_create( key, dtor );
+}
+
+static inline int
+__gthread_key_dtor (__gthread_key_t key, void *ptr)
+{
+   return rtems_gxx_key_dtor(key, ptr);
+}
+
+static inline int
+__gthread_key_delete (__gthread_key_t key)
+{
+  return rtems_gxx_key_delete (key);
+}
+
+static inline void *
+__gthread_getspecific (__gthread_key_t key)
+{
+  return rtems_gxx_getspecific (key);
+}
+
+static inline int
+__gthread_setspecific (__gthread_key_t key, const void *ptr)
+{
+  return rtems_gxx_setspecific (key, ptr);
+}
+
+static inline int
+__gthread_mutex_lock (__gthread_mutex_t *mutex)
+{
+    return rtems_gxx_mutex_lock (mutex);
+}
+
+static inline int
+__gthread_mutex_trylock (__gthread_mutex_t *mutex)
+{
+    return rtems_gxx_mutex_trylock (mutex);
+}
+
+static inline int
+__gthread_mutex_unlock (__gthread_mutex_t *mutex)
+{
+    return rtems_gxx_mutex_unlock( mutex );
+}
+
+#endif /* __gthr_rtems_h */