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From: Mark Wielaard <>
To: Allan Sandfeld Jensen <>
Subject: Re: DWZ 0.14 released
Date: Tue, 9 Mar 2021 10:09:18 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <7438883.9MRIfJ1mQo@twilight>

Hi Allan,

On Tue, Mar 09, 2021 at 09:06:54AM +0100, Allan Sandfeld Jensen wrote:
> Btw, question for gcc/binutils
> Any reason the work done by tools like dwz couldn't be done in the compiler or 
> linker? Seems a bit odd to have a post-linker that optimizes the generated 
> code, when optimizations should already be enabled.

dwz does two kinds of optimization. First it attempts to optimize the
DWARF debugging information for a given object (executable or shared
library). Secondly it tries to put shared pieces of a list of given
objects into a supplemental file that gets referenced from all the
given object files.

Technically the first optimization could be done by the linker. But
the second optimization is really a post-linker step.



  reply	other threads:[~2021-03-09  9:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-08 12:43 Tom de Vries
2021-03-09  8:06 ` Allan Sandfeld Jensen
2021-03-09  9:09   ` Mark Wielaard [this message]
2021-03-09 11:38     ` Hannes Domani
2021-03-09 11:45       ` Jakub Jelinek
2021-03-12 16:48         ` Nick Alcock

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