git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

configure.host (aix4*|aix5*): Add atomic_word_dir. 

* configure.host (aix4*|aix5*): Add atomic_word_dir.
	* config/os/aix/atomic_word.h: New file.

From-SVN: r92673
This commit is contained in:
David Edelsohn 2004-12-28 16:34:16 +00:00 committed by David Edelsohn
parent 0e256a822b
commit 7afe555c33
3 changed files with 50 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libstdc++-v3/ChangeLog
View File

@ -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> 2004-12-27 Jason Merrill <jason@redhat.com>
Add memory barriers to the double-checked locking used for static Add memory barriers to the double-checked locking used for static

43
libstdc++-v3/config/os/aix/atomic_word.h Normal file
View File

@ -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

2
libstdc++-v3/configure.host
View File

@ -155,11 +155,13 @@ case "${host_os}" in
# explicitly duplicate the directory for 4.[<3]. # explicitly duplicate the directory for 4.[<3].
os_include_dir="os/aix" os_include_dir="os/aix"
atomicity_dir="os/aix" atomicity_dir="os/aix"
atomic_word_dir="os/aix"
OPT_LDFLAGS="-Wl,-G" OPT_LDFLAGS="-Wl,-G"
;; ;;
aix4.*) aix4.*)
os_include_dir="os/generic" os_include_dir="os/generic"
atomicity_dir="os/aix" atomicity_dir="os/aix"
atomic_word_dir="os/aix"
;; ;;
aix*) aix*)
os_include_dir="os/generic" os_include_dir="os/generic"