libstdc++ cpu/bits for x86-64

Andreas Jaeger aj@suse.de
Thu Oct 18 10:04:00 GMT 2001


Here're are limits.h and atomicity.h for x86-64 together with the
needed patches for configure.target.  Ok to commit?

Andreas

2001-10-18  Andreas Jaeger  <aj@suse.de>

	* config/cpu/x86-64/bits/limits.h: New file.

	* config/cpu/x86-64/bits/atomicity.h: New file.

	* configure.target: Add x86-64.

Index: configure.target
===================================================================
RCS file: /cvs/gcc/egcs/libstdc++-v3/configure.target,v
retrieving revision 1.29
diff -u -p -r1.29 configure.target
--- configure.target	2001/09/29 16:49:19	1.29
+++ configure.target	2001/10/18 09:16:38
@@ -57,6 +57,9 @@ case "${target_cpu}" in
   sparc*)
     cpu_include_dir="config/cpu/sparc/sparc32"
     ;;
+  x86_64*)
+    cpu_include_dir="config/cpu/x86-64"
+    ;;
   *)
     cpu_include_dir="config/cpu/generic"
     ;;
@@ -137,14 +140,17 @@ esac
 # THIS TABLE IS SORTED.  KEEP IT THAT WAY.
 
 case "${target}" in
+   cris-*-*)
+     LIMITSH=config/cpu/cris
+     ;;
    i?86-*-*)
      LIMITSH=config/cpu/i386
      ;;
    powerpc-*-*)
      LIMITSH=config/cpu/powerpc
      ;;
-   cris-*-*)
-     LIMITSH=config/cpu/cris
+   x86_64-*-*)
+     LIMITSH=config/cpu/x86-64
      ;;
    *)
      LIMITSH=config/cpu/generic
============================================================
Index: libstdc++-v3/config/cpu/x86-64/bits/atomicity.h
--- libstdc++-v3/config/cpu/x86-64/bits/atomicity.h	created
+++ libstdc++-v3/config/cpu/x86-64/bits/atomicity.h	Thu Oct 18 11:01:27 2001	1.1
@@ -0,0 +1,55 @@
+// Low-level functions for atomic operations: AMD x86-64, -*- C++ -*-
+
+// Copyright (C) 1999, 2000, 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
+
+typedef int _Atomic_word;
+
+static inline _Atomic_word
+__attribute__ ((__unused__))
+__exchange_and_add (volatile _Atomic_word *__mem, int __val)
+{
+  register _Atomic_word __result;
+  __asm__ __volatile__ ("lock; xaddl %0,%2"
+			: "=r" (__result)
+                        : "0" (__val), "m" (*__mem)
+                        : "memory");
+  return __result;
+}
+
+static inline void
+__attribute__ ((__unused__))
+__atomic_add (volatile _Atomic_word* __mem, int __val)
+{
+  __asm__ __volatile__ ("lock; addl %0,%1"
+			: : "ir" (__val), "m" (*__mem) : "memory");
+}
+
+#endif /* atomicity.h */
============================================================
Index: libstdc++-v3/config/cpu/x86-64/bits/limits.h
--- libstdc++-v3/config/cpu/x86-64/bits/limits.h	created
+++ libstdc++-v3/config/cpu/x86-64/bits/limits.h	Thu Oct 18 11:12:46 2001	1.1
@@ -0,0 +1,36 @@
+// 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
+
+// Some operating systems set this
+#ifndef __glibcpp_long_double_bits
+#define __glibcpp_long_double_bits 80
+#endif
+
+#endif

-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj



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