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Re: [PATCH] [AArch64] Define BE loader name.
- From: Steve McIntyre <steve dot mcintyre at linaro dot org>
- To: libc-ports at sourceware dot org
- Cc: Andrew Pinski <pinskia at gmail dot com>, Marcus Shawcroft <marcus dot shawcroft at gmail dot com>, carlos at redhat dot com
- Date: Mon, 13 Jan 2014 18:16:23 +0000
- Subject: Re: [PATCH] [AArch64] Define BE loader name.
- Authentication-results: sourceware.org; auth=none
[ I hope this threads OK - replying to the thread using the list
>We need technical arguments from both sides to reach consensus.
>Marcus has to come up with real reasons for needing the new dynamic
Carlos already contributed to a ML discussion that happened after
Linaro Connect in November last year, where we had broad consensus
from the distros about separating the dynamic linker names for BE and
As a background to that, I'm the team lead for Big Endian work in the
Linaro Networking Group (LNG). For a variety of reasons we're working
on supporting both BE and LE code on a single system and we're
investigating various options. Yes, it's a *horrible* idea but there
are people who really want to use this. I can envisage places where we
may want to have have both BE and LE binaries co-existing in the same
system, and it would be nice if that's not locked out here.
I'll be honest: I *don't* think that the general purpose Linux distros
are likely to care about BE ARM or AArch64 systems in the same way as
us, but who knows what might come up?
>Andrew, you need to come up with concrete reasons for not wanting to
>use a symlink or a copy.
>This is *exactly* the same kind of change we made for the 32-bit ARM
>hard-float dynamic linker name change.
Yup, Been there, done that. In future, would it not make sense in
general to try and keep dynamic linkers separated by default?
>The only wrinkle is that a symlink doesn't actually work:
>If Markus is suggesting using a symlink he'll have to look into the
>problem I posted, because the last time I checked the symlink setup
>didn't work and required a hack to be used until all binaries had
Yup. :-( I remember the hack I came up with, and I've pointed Marcus
at it to help him understand what we did and why:
>Thankfully in the case of the hard-float dynamic linker name change
>we had consensus that the name change was needed to support a mixed
Steve McIntyre firstname.lastname@example.org
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