Gentoo Archives: gentoo-mips

From: Manuel Lauss <mano@×××××××××××××××××××.net>
To: gentoo-mips@l.g.o
Subject: Re: [gentoo-mips] Re: What kind of MIPS hardware do we have? (Looking to restart Gentoo/MIPS, need info)
Date: Wed, 21 Jul 2010 08:04:47
Message-Id: 20100721080431.GA19651@wormhole
In Reply to: [gentoo-mips] Re: What kind of MIPS hardware do we have? (Looking to restart Gentoo/MIPS, need info) by Matt Turner
On Sat, Jul 10, 2010 at 11:13:04PM -0400, Matt Turner wrote:
> On Thu, Jul 8, 2010 at 12:22 PM, Matt Turner <mattst88@×××××.com> wrote: > > Hi, > > I'm going to be working on Gentoo/MIPS. I'm planning to provide N32 > > stages, and I want to know what kind of MIPS hardware people have to > > run Gentoo. With this info, I should be able to better prioritize the > > tasks. > > > > So please reply with what kind of hardware you've got. > > > > Thanks! > > Matt > > Thanks everybody for your responses. > > A bit of background: MIPS has 3 ABIs: o32, n32, n64. o32 is the common > denominator, but is pretty inefficient. See [1]. As I suspected, all > the hardware people care about can use the n32 ABI, which is quite a > bit better. > > To summarize the hardware collection > - 5 MIPS III/Loongson little-endian STMicroelectronics systems (Lemote, Gdium) > - 11 MIPS IV big-endian SGI systems > - 3 MIPS IV little-endian Cobalt systems > - 2 MIPS64 selectable-endian Broadcom systems
I have some little-endian MIPS32 hardware which runs latest Gentoo.
> I've got a working n32 big-endian installation, and am preparing an > n32 little-endian installation at the moment. Once these are set up, > I'll start preparing some n32 stages.
> I think first priority should be mips4 big-endian. From there, I don't > know whether I should build a mips4-le stage for cobalt systems, or a > mips3-le stage that would work for cobalt and Loongson. Do we know of > any plain MIPS III little-endian hardware?
I believe all the small MIPS32-based routers which run OpenWRT qualify. Hoever I get the impression you want to focus on the "large" SGI and 64bit Broadcom systems?
> Also, the MIPS port is going to be pretty unmaintainable until we can > kill off ~mips from ACCEPT_KEYWORDS. Currently, attempting to upgrade > almost anything causes something to break.
In my experience, lots of packages have problems with GCC-4.4 (removal of the "h" asm constraint), and above all, the toolchain itself is pretty problematic: Lots of linker errors with large libraries (e.g. xulrunner, qt-webkit, gcj, ...) Manuel