Re: [gentoo-dev] x32 fun pants

[Mike Frysinger]

On Tuesday 06 December 2011 17:13:35 Markos Chandras wrote:
> On 12/02/2011 08:54 PM, Mike Frysinger wrote:
> > progress update: - binutils-2.22 in ~arch should work fine -
> > glibc-2.14.1-r1 in ~arch includes support when "x32" is in
> > MULTILIB_ABIS - linux-headers-3.1 includes support when "x32" is in
> > MULTILIB_ABIS - you'll still need gcc-4.7 from the toolchain
> > overlay - a 3.1 kernel can be obtained here:
> > https://github.com/hjl-tools/linux
> >
> > the only problem is with bootstrapping.  there is no way atm to
> > live migrate between multilibs on your system.  this isn't a new
> > problem ... we've been punting all bugs where people try to go from
> > MULTILIB_ABIS="amd64" to "x86 amd64" on a live system.  same issue
> > applies when adding "x32" to the list.
>
> First of all thanks for your effort. I am really looking forward to
> using this new ABI. Can you please tell me which bug is the one you
> are referring to? Not sure how to search for that in bugzilla

there isn't a specific bug on the topic.  there are random ones where people 
try to emerge gcc and it errors out when building the 32bit ABI.  this is 
generally because they started off with a no-multilib profile and then later 
switched it a multilib profile.  we've just marked them as INVALID: install a 
multilib stage3 if you want multilib.

> > i've been contemplating how to address this, but so far, it seems
> > like the easiest is to post a glibc binpkg which includes all
> > possible ABIs and have people install that first.  then they should
> > be able to install gcc/linux- headers freely and rebuild glibc
> > after that.
>
> Do you have such a glibc binary around?

i'll post binaries here:
	http://dev.gentoo.org/~vapier/x32/
-mike