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* Re: c++/6787: seg fault when loading dynamic library that contains dynamic_cast
@ 2003-02-23 20:37 neroden
0 siblings, 0 replies; 3+ messages in thread
From: neroden @ 2003-02-23 20:37 UTC (permalink / raw)
To: aznagar, gcc-bugs, gcc-prs, nobody
Synopsis: seg fault when loading dynamic library that contains dynamic_cast
State-Changed-From-To: feedback->closed
State-Changed-By: neroden
State-Changed-When: Sun Feb 23 20:37:53 2003
State-Changed-Why:
No feedback 3 months
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6787
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c++/6787: seg fault when loading dynamic library that contains dynamic_cast
@ 2002-09-15 4:34 nathan
0 siblings, 0 replies; 3+ messages in thread
From: nathan @ 2002-09-15 4:34 UTC (permalink / raw)
To: aznagar, gcc-bugs, gcc-prs, nobody
Synopsis: seg fault when loading dynamic library that contains dynamic_cast
State-Changed-From-To: open->feedback
State-Changed-By: nathan
State-Changed-When: Sun Sep 15 04:34:18 2002
State-Changed-Why:
cannot reproduce works for me on both 2.96RH and 3.3 cvs
Linux uha.cs.bris.ac.uk 2.4.18-10 #1 Wed Aug 7 11:39:21 EDT 2002 i686 unknown
glibc 2.2.5
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6787
^ permalink raw reply [flat|nested] 3+ messages in thread
* c++/6787: seg fault when loading dynamic library that contains dynamic_cast
@ 2002-05-23 12:26 aznagar
0 siblings, 0 replies; 3+ messages in thread
From: aznagar @ 2002-05-23 12:26 UTC (permalink / raw)
To: gcc-gnats
>Number: 6787
>Category: c++
>Synopsis: seg fault when loading dynamic library that contains dynamic_cast
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Thu May 23 12:26:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Dirk Walther
>Release: 3.1 and 2.96
>Organization:
>Environment:
RedHat linux 7.1 on a i686
>Description:
A dynamic library loader that has been compiled with g++-2.96 crashes with a segmentation fault when loading a dynamic library that has been compiled with g++-3.1 and that contains dynamic_cast.
The problem does not occur when the library loader is compiled using g++-3.1 - in this case it loads and executes libraries compiled with g++-2.96 or g++-3.1 just fine. Also, the problem does not occur when both library loader and library are compiled with g++-2.96.
I have attached the code for simple examples for the library loader, the library, and a log of a debug attempt.
In real life, the library loader is Matlab (compiled with g++-2.95.2) which I cannot recompile. The library is a MEX function that needs to use g++-3.x
>How-To-Repeat:
Use the code and the compiler flags as mentioned in the attached file.
>Fix:
The library loader should be recompiled using g++-3.x. Unfortunately, this is not possible for me with Matlab.
>Release-Note:
>Audit-Trail:
>Unformatted:
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^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2003-02-23 20:37 UTC | newest]
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2003-02-23 20:37 c++/6787: seg fault when loading dynamic library that contains dynamic_cast neroden
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2002-09-15 4:34 nathan
2002-05-23 12:26 aznagar
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