[Bug c++/11456] Segfault in dot. AIX 5.1, GCC 3.2.2

["yuvraj_hande at i2 dot com" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11456


yuvraj_hande at i2 dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |WONTFIX


------- Additional Comments From yuvraj_hande at i2 dot com  2003-08-27 15:51 -------
We have got solution, and "dot" executable is running without any problem 
after building and linking with IBM C Compiler ( /usr/vac/bin/cc).

I have downloaded the patch for gcc3.3 and builded gcc with this patch, which 
adds options -mnatural-align to gcc, builded "dot" with two options.  Check 
this link 
http://gcc.gnu.org/ml/gcc-patches/2003-04/msg02222.html .
But that didn't help, I was still getting core dump at runtime. ( Core dump 
was because of alignment of structure members, and accessing invalid memory 
address by structure pointer.)   Check out this link for support of this 
assumption, 
http://developer.apple.com/documentation/DeveloperTools/Conceptual/MachORuntime
/2rt_powerpc_abi/chapter_3_section_3.html
And analyzing the core with gdb also support the assumption.

Then, using the IBM C Compiler for building the "dot" source and even third 
party libs, solved the problem.


Thanks for your time.

Regards,