libstdc++/5037: Multithreaded read access to strings not threadsafe on Solaris/Sparc

[Craig]

[craigk:/opt/tools/gcc-3.0/include/g++-v3/sparc-sun-solaris2.7/bits]$
head -1 atomicity.h
// Low-level functions for atomic operations: Sparc32 version  -*- C++
-*-      

For giggles, I tried running the test program w/ 3.0.2 about an hour
ago.  It fails.

--C

ljrittle@gcc.gnu.org wrote:
> 
> Synopsis: Multithreaded read access to strings not threadsafe on Solaris/Sparc
> 
> State-Changed-From-To: open->feedback
> State-Changed-By: ljrittle
> State-Changed-When: Thu Dec  6 13:08:46 2001
> State-Changed-Why:
>     OK, I looked at build.log and I do see that gcc is reporting
>     a reasonable thread model.  Can you verify that
>     config/cpu/sparc/sparc32/bits/atomicity.h is being used
>     to implement the spinlocks used by string<>?  This file
>     was installed on your system in
>     $prefix/include/g++-v3/<target-triple>/bits/atomicity.h .
>     First of all, make sure the one installed is not the
>     generic copy of atomicity.h (internally labelled:
>     Generic version).  Thanks for your help.
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=5037&database=gcc