On 9/25/12 7:56 PM, Stefan Teleman (JIRA) wrote:


      [ 
https://issues.apache.org/jira/browse/STDCXX-1066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Anybody around here, except Stefan, who has access to a SPARC V8 machine updated to the specified kernel update or later, and who is willing to run a simple test program? It's a 5 minute job at most.

Thanks!


Stefan Teleman closed STDCXX-1066.
----------------------------------

     Resolution: Won't Fix

Bug will not be fixed upstream. It is fixed in the Solaris releases.

SPARCV8 requires pthread_mutex_t and pthread_cond_t to be aligned on an 8-byte 
boundary
---------------------------------------------------------------------------------------

                 Key: STDCXX-1066
                 URL: https://issues.apache.org/jira/browse/STDCXX-1066
             Project: C++ Standard Library
          Issue Type: Bug
          Components: Thread Safety
    Affects Versions: 4.2.1, 4.2.2, 4.2.x, 4.3.x
         Environment: Solaris 10 Update 6 or later on SPARCV8 [32-bit]
Defect is compiler-independent - in reality it only affects Sun Studio and GCC.
            Reporter: Stefan Teleman
              Labels: features, runtime, threads
             Fix For: 4.2.2, 4.2.x, 4.3.x

         Attachments: _config-gcc.h.stdcxx-1066.patch, 
_config-sunpro.h.stdcxx-1066.patch, ctype.cpp.stdcxx-1066.patch, 
exception.cpp.stdcxx-1066.patch, ios.cpp.stdcxx-1066.patch, 
iostream.cpp.stdcxx-1066.patch, iostream.stdcxx-1066.patch, 
locale_body.cpp.stdcxx-1066.patch, locale_classic.cpp.stdcxx-1066.patch, 
messages.cpp.stdcxx-1066.patch, _mutex.h.stdcxx-1066.patch, 
time_put.cpp.stdcxx-1066.patch, use_facet.h.stdcxx-1066.patch


Starting with Solaris 10 Update 6, on SPARCV8, pthread_mutex_t and 
pthread_cond_t MUST be aligned on an 8-byte boundary. Misaligned access will 
result in either SEGV or SIGBUS.
There are numerous places in the multi-threaded version of stdcxx where 
pthread_mutex_t and/or pthread_cond_t types are contained within an union, but 
with an enforced alignment different than 8. All these instances must be 
corrected, and #ifdef-guarded for SPARCV8.
Patches to follow shortly, this is just opening the issue.
Warning: the patchset resolving this issue is very large, and it affects a 
large number of files.

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