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From: "Kevin F. Quinn" <kevquinn@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Subject: Re: [gentoo-dev] Optimizing performance
Date: Sat, 24 Dec 2005 12:37:39 +0100	[thread overview]
Message-ID: <20051224123739.0417e95d@c1358217.kevquinn.com> (raw)
In-Reply-To: <200512240052.46266@enterprise.flameeyes.is-a-geek.org>

On Sat, 24 Dec 2005 00:52:46 +0100
"Diego 'Flameeyes' Pettenò" <flameeyes@gentoo.org> wrote:

> Actually, if the binaries are not stripped, they consume more memory.

I'm still convinced this is untrue (apart from disk space).  Debug
symbols are not part of the executable view.  The kernel & loader map
PT_LOAD sections, which do not include the debug symbols.  Indeed debug
segments don't have a load address, so the loader won't know where to
put them if it does. Compare and contrast the output of 'readelf
-l' (which shows the program headers - in particular look at the
PT_LOAD sections) and 'readelf -s' (which shows all segments).

If any one can point me to code in the kernel or loader that maps debug
symbol sections I'm sure many would be interested.

-- 
Kevin F. Quinn

-- 
gentoo-dev@gentoo.org mailing list



  parent reply	other threads:[~2005-12-24 11:35 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-15 12:48 [gentoo-dev] Optimizing performance Patrick Lauer
2005-12-15 13:43 ` Francesco Riosa
2005-12-15 14:17   ` Diego 'Flameeyes' Pettenò
2005-12-15 16:00   ` Patrick Lauer
2005-12-15 16:57     ` Matthijs van der Vleuten
2005-12-15 14:13 ` Chris Gianelloni
2005-12-15 18:08   ` Wernfried Haas
2005-12-15 18:39     ` Curtis Napier
2005-12-15 14:43 ` [gentoo-dev] " Duncan
2005-12-15 15:43   ` Patrick Lauer
2005-12-15 15:50     ` Donnie Berkholz
2005-12-23 17:28       ` Paul de Vrieze
2005-12-23 17:36         ` Donnie Berkholz
2005-12-23 17:58           ` Lares Moreau
2005-12-15 16:03     ` Diego 'Flameeyes' Pettenò
2005-12-15 17:49       ` [gentoo-dev] " Duncan
2005-12-15 17:06     ` [gentoo-dev] " Francesco Riosa
2005-12-15 15:58 ` [gentoo-dev] " Nathaniel McCallum
2005-12-15 18:38 ` John Myers
2005-12-23 17:35   ` Paul de Vrieze
2005-12-23 23:52     ` Diego 'Flameeyes' Pettenò
2005-12-24  2:08       ` John Myers
2005-12-24 11:37       ` Kevin F. Quinn [this message]
2005-12-24 12:05         ` Diego 'Flameeyes' Pettenò
2005-12-27 15:38       ` Paul de Vrieze
2005-12-28  5:37         ` [gentoo-dev] " Duncan
2005-12-28  9:50           ` Duncan

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