Gentoo Archives: gentoo-dev

From: Mike Frysinger <vapier@g.o>
To: gentoo-dev@l.g.o
Subject: Re: [gentoo-dev] x32 fun pants
Date: Thu, 15 Sep 2011 20:38:21
Message-Id: 201109151633.48737.vapier@gentoo.org
In Reply to: Re: [gentoo-dev] x32 fun pants by "Michał Górny"
On Thursday, September 15, 2011 16:12:00 Michał Górny wrote:
> On Thu, 15 Sep 2011 15:34:06 -0400 Mike Frysinger wrote: > > KEYWORDS wise, i'd like to avoid having to add "x32" everywhere. > > instead, reusing "amd64". only downside is the existing USE=amd64 > > behavior, but we can address that by making MULTILIB_ABIS a > > USE_EXPAND (i think this came up before with the portage multilib > > discussion). > > Hrm, wouldn't that be more like x86 keyword? AFAICS the type sizes for > x86 and x32 would match.
the sizeof(long) and sizeof(void*) are the same between x86 and x32. however, that's about the only thing. for example, x32 gets access to 64bit registers when working with 64bit types (long long) and the tuple is x86_64-pc-linux- gnu. in general, it seems to be closer to amd64 than x32. -mike

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Replies

Subject Author
Re: [gentoo-dev] x32 fun pants Joshua Kinard <kumba@g.o>
Re: [gentoo-dev] x32 fun pants "Michał Górny" <mgorny@g.o>