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Re: AccessController speedup
- From: Ranjit Mathew <rmathew at gmail dot com>
- To: Scott Gilbertson <scottg at mantatest dot com>
- Cc: java at gcc dot gnu dot org
- Date: Wed, 23 Aug 2006 10:46:58 +0530
- Subject: Re: AccessController speedup
- Openpgp: url=http://rmathew.com/aa_6C114B8F.txt
- References: <20060814142608.GA10501@redhat.com> <005f01c6c603$21fa6f60$3c16a8c0@scott>
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Scott Gilbertson wrote:
>
> I'm getting a segmentation fault that could be related to the recent
> unwinder changes. I have the core dump and binary that generated the
> backtrace below. The problem happens with both static and dynamic
> executables.
>
> Is there any information I can provide (memory dumps or whatever) that would
> help to determine what's happening?
>
> Do you suppose "--disable-tls" or "--enable-sjlj-exceptions" has anything to
> do with it?
As Andrew has noted, the Linux targets assume that DWARF-2
unwinding information is available and no one seems to test
the SJLJ case. If you can help it, do not use SJLJ-based EH.
If you still want to use SJLJ-based EH, you'll have to
at least use the fallback unwinder in "sysdep/i386/backtrace.h".
You'll have to change "configure.host" to effect this
change (see the case for CygWin/MinGW).
There will of course be other places in GCJ/GCC that assume
that a Linux target has DWARF-2 unwinding information
available.
HTH,
Ranjit.
- --
Ranjit Mathew Email: rmathew AT gmail DOT com
Bangalore, INDIA. Web: http://rmathew.com/
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