Gentoo Archives: gentoo-dev

From: "Robin H. Johnson" <robbat2@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] Support for multiple ABIs for amd64 (64bit,32bit) in multilib overlay
Date: Mon, 12 Oct 2009 21:18:13
Message-Id: robbat2-20091012T210609-279214517Z@orbis-terrarum.net
In Reply to: Re: [gentoo-dev] Support for multiple ABIs for amd64 (64bit,32bit) in multilib overlay by Mike Frysinger
1 On Mon, Oct 12, 2009 at 04:50:23PM -0400, Mike Frysinger wrote:
2 > what exactly does this "lib32" do ? naming USE flags according to specific
3 > ABI implementations is a bad idea. you have to forget special casing anything
4 > to "lib32 vs lib64". amd64, while the most common, is hardly extensible. we
5 > must handle multiple ABIs which easily might have the same bitsize.
6 The canonical example for this does still remain MIPS I believe.
7
8 The most common ABIs in MIPS are:
9 o32, n32 - Both in Gentoo releases
10 n64 - Was experimentally done in Gentoo (default-linux/mips/2007.1-dev/generic-be/n64)
11 o64, eabi, meabi, nubi - Not sure if they were were ever released in any way.
12
13 Crossdev DOES support the full swath of these last I checked it.
14
15 --
16 Robin Hugh Johnson
17 Gentoo Linux: Developer, Trustee & Infrastructure Lead
18 E-Mail : robbat2@g.o
19 GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85

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