CRIS port, part 4: libstdc++-v3 parts

[Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>]

Greatly helped by porting.texi.  Note that the default value for
__glibcpp_long_double_bits is 128, which seems counter to most
targets, including CRIS, where "long double" is just an alias
for double.

Ok to commit?

Part 4, libstdc++-v3 port bits:

	* configure.target (LIMITSH): Set for cris.
	(cpu_include_dir): Set for cris-*-*.
	* config/cpu/cris/bits/atomicity.h: New file.
	* config/cpu/cris/bits/limits.h: New file.

Index: libstdc++-v3/configure.target
===================================================================
RCS file: /cvs/gcc/egcs/libstdc++-v3/configure.target,v
retrieving revision 1.28
diff -p -c -r1.28 configure.target
*** configure.target	2001/08/18 19:22:25	1.28
--- configure.target	2001/09/29 15:02:16
*************** case "${target_cpu}" in
*** 30,35 ****
--- 30,38 ----
    arm*)
      cpu_include_dir="config/cpu/arm"
      ;;
+   cris)
+     cpu_include_dir="config/cpu/cris"
+     ;;
    ia64)
      cpu_include_dir="config/cpu/ia64"
      ;;
*************** case "${target}" in
*** 139,144 ****
--- 142,150 ----
       ;;
     powerpc-*-*)
       LIMITSH=config/cpu/powerpc
+      ;;
+    cris-*-*)
+      LIMITSH=config/cpu/cris
       ;;
     *)
       LIMITSH=config/cpu/generic

diff -cprN libstdc++-v3/config/cpu/nothing/bits/atomicity.h libstdc++-v3/config/cpu/cris/bits/atomicity.h
*** libstdc++-v3/config/cpu/nothing/bits/atomicity.h	Thu Jan  1 01:00:00 1970
--- libstdc++-v3/config/cpu/cris/bits/atomicity.h	Thu Sep 27 17:34:01 2001
***************
*** 0 ****
--- 1,79 ----
+ // Low-level functions for atomic operations: Generic version  -*- C++ -*-
+ 
+ // Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library 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.
+ 
+ // This library 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 this library; 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, you may use this file as part of a free software
+ // library without restriction.  Specifically, if other files instantiate
+ // templates or use macros or inline functions from this file, or you compile
+ // this file and link it with other files to produce an executable, this
+ // file 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 _BITS_ATOMICITY_H
+ #define _BITS_ATOMICITY_H	1
+ 
+ // This entity must not cross a page boundary.
+ typedef int _Atomic_word __attribute__ ((__aligned__ (4)));
+ 
+ static inline _Atomic_word
+ __attribute__ ((__unused__))
+ __exchange_and_add (_Atomic_word* __mem, int __val)
+ {
+   int __tmp;
+   _Atomic_word __result;
+ 
+ #if (__CRIS_arch_version >= 10)
+   __asm__ __volatile__ (" clearf		\n"
+ 			"0:			\n"
+ 			" move.d %4,%2		\n"
+ 			" move.d [%3],%0	\n"
+ 			" add.d %0,%2		\n"
+ 			" ax			\n"
+ 			" move.d %2,[%3]	\n"
+ 			" bwf 0b		\n"
+ 			" clearf		\n"
+ 			:  "=&r" (__result), "=m" (*__mem), "=&r" (__tmp)
+ 			: "r" (__mem), "g" (__val), "m" (*__mem)
+ 			: "memory");
+ #else
+   __asm__ __volatile__ (" move $ccr,$r9		\n"
+ 			" di			\n"
+ 			" move.d %4,%2		\n"
+ 			" move.d [%3],%0	\n"
+ 			" add.d %0,%2		\n"
+ 			" move.d %2,[%3]	\n"
+ 			" move $r9,$ccr		\n"
+ 			:  "=&r" (__result), "=m" (*__mem), "=&r" (__tmp)
+ 			: "r" (__mem), "g" (__val), "m" (*__mem)
+ 			: "memory", "r9");
+ #endif
+ 
+   return __result;
+ }
+ 
+ static inline void
+ __attribute__ ((__unused__))
+ __atomic_add (_Atomic_word* __mem, int __val)
+ {
+   __exchange_and_add (__mem, __val);
+ }
+ 
+ #endif /* atomicity.h */
diff -cprN libstdc++-v3/config/cpu/nothing/bits/limits.h libstdc++-v3/config/cpu/cris/bits/limits.h
*** libstdc++-v3/config/cpu/nothing/bits/limits.h	Thu Jan  1 01:00:00 1970
--- libstdc++-v3/config/cpu/cris/bits/limits.h	Wed Sep 19 01:05:19 2001
***************
*** 0 ****
--- 1,33 ----
+ // Copyright (C) 2001 Free Software Foundation, Inc.
+ //
+ // This file is part of the GNU ISO C++ Library.  This library 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.
+ 
+ // This library 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 this library; 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, you may use this file as part of a free software
+ // library without restriction.  Specifically, if other files instantiate
+ // templates or use macros or inline functions from this file, or you compile
+ // this file and link it with other files to produce an executable, this
+ // file 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 _GLIBCPP_CPU_LIMITS
+ #define _GLIBCPP_CPU_LIMITS 1
+ 
+ #define __glibcpp_long_double_bits 64
+ 
+ #endif

brgds, H-P