libstdc++/7383: atomic operations not atomic on ppc405

[dank@kegel.com]

The following reply was made to PR libstdc++/7383; it has been noted by GNATS.

From: dank@kegel.com
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, dank@kegel.com,
 	gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: libstdc++/7383: atomic operations not atomic on ppc405
Date: Thu, 25 Jul 2002 12:02:18 -0700

 I have updated my patch to also fix the stwcx in boehm-gc used by gcj;
 see http://www.kegel.com/xgcc3/gcc-20020722-ppc405erratum77.patch
 This new patch is untested, but extremely similar to the earlier
 patch which did seem to fix the libstdc++ problem, and simple
 enough that one might be able to trust it by inspection.
 
 Note that libc/4155 is related; you have to fix both.
 http://bugs.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4155
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7383