diff options
| -rw-r--r-- | libstdc++-v3/ChangeLog | 5 | ||||
| -rw-r--r-- | libstdc++-v3/config/os/aix/atomic_word.h | 43 | ||||
| -rw-r--r-- | libstdc++-v3/configure.host | 2 |
3 files changed, 50 insertions, 0 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index da33b5d..65f877d 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,8 @@ +2004-12-28 David Edelsohn <edelsohn@gnu.org> + + * configure.host (aix4*|aix5*): Add atomic_word_dir. + * config/os/aix/atomic_word.h: New file. + 2004-12-27 Jason Merrill <jason@redhat.com> Add memory barriers to the double-checked locking used for static diff --git a/libstdc++-v3/config/os/aix/atomic_word.h b/libstdc++-v3/config/os/aix/atomic_word.h new file mode 100644 index 0000000..5834bbc --- /dev/null +++ b/libstdc++-v3/config/os/aix/atomic_word.h @@ -0,0 +1,43 @@ +// Low-level type for atomic operations -*- C++ -*- + +// Copyright (C) 2004 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 _GLIBCXX_ATOMIC_WORD_H +#define _GLIBCXX_ATOMIC_WORD_H 1 + +typedef int _Atomic_word; + +#ifdef _ARCH_PPC +#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("isync":::"memory") +#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("sync":::"memory") +#else +#define _GLIBCXX_READ_MEM_BARRIER __asm __volatile ("":::"memory") +#define _GLIBCXX_WRITE_MEM_BARRIER __asm __volatile ("":::"memory") +#endif + +#endif diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host index cf18e98..3557459 100644 --- a/libstdc++-v3/configure.host +++ b/libstdc++-v3/configure.host @@ -155,11 +155,13 @@ case "${host_os}" in # explicitly duplicate the directory for 4.[<3]. os_include_dir="os/aix" atomicity_dir="os/aix" + atomic_word_dir="os/aix" OPT_LDFLAGS="-Wl,-G" ;; aix4.*) os_include_dir="os/generic" atomicity_dir="os/aix" + atomic_word_dir="os/aix" ;; aix*) os_include_dir="os/generic" |