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Re: kdb and optimizations

From: Thomas Schwinge
Subject: Re: kdb and optimizations
Date: Mon, 8 Apr 2013 00:06:23 +0200
User-agent: Notmuch/0.9-101-g81dad07 (http://notmuchmail.org) Emacs/23.4.1 (i486-pc-linux-gnu)


On Sun, 7 Apr 2013 21:10:09 +0200, Samuel Thibault <samuel.thibault@gnu.org> 
> In the Debian package, when building the kdb-enabled kernel,
> we pass -fno-omit-frame-pointer in CFLAGS, and I'll push
> -fno-optimize-sibling-calls too. Both of them permit to get useful call
> traces in kdb. They should rather be included in the upstream
> configfrag.ac, don't they?

With KDB not handling DWARF information, what you propose is probably the
"right" thing to do indeed, depite the performance loss (which I don't
know how big it is).


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