AccessController speedup

[Ranjit Mathew]

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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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