Re: [Xen-devel] [PATCH] x86/efi: Do not insert timestamps in efi files

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Oct 24, 2018 at 02:49:49PM +0200, Bernhard M. Wiedemann wrote:
> On 24/10/2018 10.16, Andrew Cooper wrote:
> > This change is fine in principle, but do all i386pep compatible versions
> > of LD support this parameter?
> 
> It seems, it was added in 2014 to GNU binutils when the default was
> reversed to be unreproducible:
> https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=eeb14e5a5b378450ca2ed139e76f317f491f4613

I think adding this unconditionally will break older ld? Keep in mind
that our supported binutils dates back to 2005.

Either some sort of filtering is required or we bump the required
binutils version.  For the former route see ld-ver-build-id in
Config.mk.

Wei.

> 
> Don't know about other ld implementations.


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