Date: Sun, 30 Jun 2013 08:02:18 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: Proposed roadmap to 1.0 On Sun, Jun 30, 2013 at 08:21:25AM +0100, Justin Cormack wrote: > > > > Do we currently support 64-bit ppc? > > > > > > No, but 32-bit apps can run on 64-bit kernel as far as I know. I was > > > just looking at the 64-bit ABI earlier today and it's rather > > > gratuitously ugly, but probably not too hard to support. > > > > Apparently, it's also slower on some CPUs: > > http://www.yellowdog-board.com/viewtopic.php?p=23037#p23037 > > I think that may not be true with newer silicon. IBM apparently no longer > ship 32 bit userspace compatibility code. Are you talking about AIX or a build of Linux they ship? My guess would be they're just not shipping 32-bit libs, which wouldn't really make any difference if your intent is to use a musl ecosystem instead. If it's 32-bit support turned off in the kernel (is that even possible?), that could also easily be turned back on. > You can get access to new > hardware at no cost through their partner program. Plus I still have one. :) > MIPS64 would be nice as the Chinese are making them (Loongson) for general > use. You can also run 32-bit userspace on MIPS64. However if you want to do this, the n32 ABI (analogous to x32 on x86_64) is moderately more efficient and less ugly. So I agree MIPS n32 and maybe also n64 are interesting to support. Rich
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