From owner-freebsd-hackers@FreeBSD.ORG  Fri Oct 21 07:51:34 2011
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Cc: freebsd-hackers <freebsd-hackers@freebsd.org>
Subject: Re: .eh_frame, .eh_frame_hdr - how to remove that trash
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> on entry into each function, which is different from usual x86
> convention.
> Asynchronous unwind info (yeah, same stuff you keep referring to as
> crap), is the only way you can debug your program or get anything
> remotely close to usable backtrace, by default.

i understand but i DO NOT called compiler with -g option which clearly 
means that i do not want to debug isn't it?