+2002-11-01 Benjamin Kosnik <bkoz@redhat.com>
+
+ PR libstdc++/7926
+ * configure.target: Simplify.
+ * config/cpu/i386/atomicity.h: Remove.
+ * config/cpu/i386: Remove.
+ * config/cpu/arm/atomicity.h: Remove.
+ * config/cpu/arm: Remove.
+ * config/cpu/x86-64/atomicity.h: Remove.
+ * config/cpu/x86-64: Remove.
+
2002-11-01 Christian Ehrhardt <ehrhardt@mathematik.uni-ulm.de>
PR libstdc++/8197
+++ /dev/null
-// Low-level functions for atomic operations: ARM version -*- C++ -*-
-
-// Copyright (C) 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;
-
-/* It isn't possible to write an atomic add instruction using the ARM
- SWP instruction without using either a global guard variable or a
- guard bit somewhere in the Atomic word. However, even with a guard
- bit we need to understand the thread model (if any) in order to
- make co-operatively threaded applications work correctly.
-
- The previous Thumb-based implementations were also completely
- broken, since they failed to switch back into Thumb mode (Gas bug,
- I think). */
-
-static inline _Atomic_word
-__attribute__ ((__unused__))
-__exchange_and_add (volatile _Atomic_word* __mem, int __val)
-{
- _Atomic_word __result = *__mem;
-
- *__mem = __result + __val;
- return __result;
-}
-
-static inline void
-__attribute__ ((__unused__))
-__atomic_add (volatile _Atomic_word *__mem, int __val)
-{
- __exchange_and_add (__mem, __val);
-}
-
-#endif /* atomicity.h */
+++ /dev/null
-// Low-level functions for atomic operations: x86, x < 4 version -*- 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 */
-
-
-
-
+++ /dev/null
-// Low-level functions for atomic operations: AMD x86-64, -*- C++ -*-
-
-// 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 _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 */
# Try to guess a default cpu_include_dir based on the name of the CPU. We
# cannot do this for os_include_dir; there are too many portable operating
# systems out there. :-)
+abi_baseline_triplet=${target}
+c_model=c_std
+c_compatibility=no
if test -d ${glibcpp_srcdir}/config/cpu/${target_cpu}; then
cpu_include_dir="cpu/${target_cpu}"
else
cpu_include_dir="cpu/generic"
fi
-abi_baseline_triplet=${target}
-
-c_model=c_std
-c_compatibility=no
-
# TARGET-SPECIFIC OVERRIDES
# Set any CPU-dependent bits.
alpha*)
cpu_include_dir="cpu/alpha"
;;
- arm* | strongarm* | xscale* )
- cpu_include_dir="cpu/arm"
- ;;
- i486 | i586 | i686 | i786)
- # add athlons here maybe
+ athlon* | i586 | i686 | i786 | x86_64)
cpu_include_dir="cpu/i486"
;;
- m68k | m680[246]0)
+ m680[246]0)
cpu_include_dir="cpu/m68k"
;;
- mips*)
- # MIPS chips are unreliable as to sc/ll support. By default
- # don't use atomic instructions and override for the OS.
- cpu_include_dir="cpu/generic"
- ;;
- mmix)
- ATOMICITYH="cpu/generic"
- ;;
powerpc* | rs6000)
cpu_include_dir="cpu/powerpc"
;;
- s390 | s390x)
+ s390x)
cpu_include_dir="cpu/s390"
;;
sparc* | ultrasparc)
cpu_include_dir="cpu/sparc"
;;
- x86_64*)
- cpu_include_dir="cpu/x86-64"
- ;;
esac
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