DWZ 0.14 released

Mark Wielaard mark@klomp.org
Tue Mar 9 09:09:18 GMT 2021


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.

Cheers,

Mark


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