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From "Martin Sebor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (STDCXX-199) [XLC++ 8.0/Linux/PPC] SIGSEGV throwing an exception
Date Wed, 14 Jun 2006 15:36:30 GMT
    [ http://issues.apache.org/jira/browse/STDCXX-199?page=comments#action_12416215 ] 

Martin Sebor commented on STDCXX-199:
-------------------------------------

-------- Original Message --------
Subject: Re: PMR #: 02264,K78,000-abnormal exit of code on execution
Date: Wed, 14 Jun 2006 11:24:13 -0400
From: Basil Kanneth <bkanneth@ca.ibm.com>
To: sebor@roguewave.com
CC: Zoran Kulina <zoran@ca.ibm.com>

Hi Martin,

Our investigation determined this is not a compiler issue.

The problem is you used a C compiler (xlc) to compile and link a C++ 
program. The C compiler will not link in the necessary C++ components such 
as C++ libraries.

When using the '-q64' option with xlc, the default '-lgcc_eh' library gets 
invoked at link time instead of the desired '-lgcc_s_64' library. Hence 
the 'segmentation fault' at execution time. 

The best solution is to use xlc++ when compiling C++ programs since we 
support linking C++ objects with xlc++.

Please contact me if you have any questions regarding this issue.

Sincerely,

Basil Kanneth
XL C/C++ and Fortran Support
IBM Software Group - Toronto Lab
+1 905-413-2880



Basil Kanneth/Toronto/IBM
06/08/2006 05:17 PM

To: sebor@roguewave.com
cc:
Subject: Re: PMR #: 02264,K78,000-abnormal exit of code on execution

Hi Martin, 

I would like to inform you that a defect has been opened for this PMR for 
XL C/C++ Advanced Edition V8.0 for Linux. 

>From my investigation, it appears to be the '-q64' option that causes the 
abnormal exit of code on execution.

I am further investigating on why the '-q64' option causes the problem. I 
will provide you with an update by Wednesday, June 14th, 2006.

Please feel free to contact me if you have any questions. 

Sincerely,

Basil Kanneth
XL C/C++ and Fortran Support
IBM Software Group - Toronto Lab
+1 905-413-2880



Basil Kanneth/Toronto/IBM 
06/06/2006 04:25 PM

To
sebor@roguewave.com
cc

Subject
PMR #: 02264,K78,000-abnormal exit of code on execution






Hi Martin, 

I am Basil Kanneth and I have taken ownership of this PMR.

I was able to reproduce the problem with the test case that you provided. 

I am investigating the issue. I will let you know of any updates by 
Friday, June 9th. 

Please feel free to contact me if you have any questions. 

Sincerely,

Basil Kanneth
XL C/C++ and Fortran Support
IBM Software Group - Toronto Lab
+1 905-413-2880

> [XLC++ 8.0/Linux/PPC] SIGSEGV throwing an exception
> ---------------------------------------------------
>
>          Key: STDCXX-199
>          URL: http://issues.apache.org/jira/browse/STDCXX-199
>      Project: C++ Standard Library
>         Type: Bug

>   Components: External
>     Versions: 4.1.3
>  Environment: XLC++ 8.0, gcc 3.3.3, SuSE Linux on PowerPC:
> $ uname -srvp && /lib64/tls/libc.so.6
> Linux 2.6.5-7.191-pseries64 #1 SMP Tue Jun 28 14:58:56 UTC
> 2005 ppc64
> GNU C Library stable release version 2.3.3 (20040412), by
> Roland McGrath et al.
> Copyright (C) 2004 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.
> There is NO warranty; not even for MERCHANTABILITY or
> FITNESS FOR A
> PARTICULAR PURPOSE.
> Configured for ppc64-suse-linux.
> Compiled by GNU CC version 3.3.3 (SuSE Linux).
> Compiled on a Linux 2.6.5 system on 2005-06-03.
> Available extensions:
>         GNU libio by Per Bothner
>         crypt add-on version 2.1 by Michael Glad and others
>         NPTL 0.61 by Ulrich Drepper
>         GNU Libidn by Simon Josefsson
>         BIND-8.2.3-T5B
>         NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
> Thread-local storage support included.
> Report bugs using the `glibcbug' script to <bugs@gnu.org>.
>     Reporter: Martin Sebor

>
> PMR 02264,K78,000
> When compiled and linked with XLC++ 8.0 using the specified command line options the
program below exits abnormally. The same program runs successfully to
> completion when compiled and linked with gcc on the same machine (using gcc -g -m64 t.cpp
-lsupc++).
> $ cat t.cpp && xlc -qversion && xlc t.cpp -q64 -g -lxlopt -lxl -libmc++
-lsupc++ -lgcc -lgcc_eh && ./a.out 
> struct A { };
> void foo ();
> void bar () throw (A) { return foo (); }
> int foobar ()
> {
>     try {
>         bar ();
>         return 1;
>     }
>     catch (A) { return 0; }
>     catch (...) { }
>     return 2;
> }
> int main ()
> {
>     return foobar ();
> }
> void foo ()
> {
>     struct B: A { };
>     B b;
>     throw b;
> }
> IBM XL C/C++ Advanced Edition V8.0 for Linux   
> Version: 08.00.0000.0000  
> Segmentation fault

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