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Simba7
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PostPosted: Sat Feb 01, 2014 6:36 pm    Post subject: Multilib on UltraSPARC Reply with quote

It seems that http://www.gentoo.org/proj/en/base/sparc/multilib.xml doesn't work anymore. I tried to access the binhost, but it doesn't exist.

So, I can not compile either multilib gcc or glibc. Any workarounds for this?
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NeddySeagoon
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PostPosted: Sat Feb 01, 2014 9:39 pm    Post subject: Reply with quote

Simba7,

I have multilib SPARC on a dead U10 that I replaced with a Raspberry Pi.
I may be able to recover a few packages from the HDD. As it was ~SPARC, I used to run it with FEATURES=buildpkg.

What packages do you want?

64 bit userland on SPARC is generally a bad thing as you loose half the CPU registers.
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Simba7
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PostPosted: Sun Feb 02, 2014 1:31 am    Post subject: Reply with quote

NeddySeagoon wrote:
What packages do you want?

I think just gcc and glibc.
NeddySeagoon wrote:
64 bit userland on SPARC is generally a bad thing as you loose half the CPU registers.

So, 64bit on SPARC is a bad thing? Should I stick with just 32bit userland?
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mattst88
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PostPosted: Sun Feb 02, 2014 3:55 am    Post subject: Reply with quote

NeddySeagoon wrote:
64 bit userland on SPARC is generally a bad thing as you loose half the CPU registers.


I think you're misinterpreting something here.

The SPARC's floating-point registers are organized such that an even-odd pair of single-precision (i.e., 32-bit) registers act as a single double-precision (i.e., 64-bit) register.

This has nothing to do with integer registers, and has nothing to do with 32-bit vs 64-bit ABIs.


/me waves to Simba7. (another former member of the Tomchu forum!)
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NeddySeagoon
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PostPosted: Sun Feb 02, 2014 1:52 pm    Post subject: Reply with quote

mattst88,

Thank you for clearing that up.
Wasn't it you that did mulilib SPARC in the first place?
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Simba7
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PostPosted: Sun Feb 02, 2014 2:36 pm    Post subject: Reply with quote

NeddySeagoon wrote:
Thank you for clearing that up

Ahh. Ok. I still want to go multilib on these systems.

If you need a maintainer, I'd be willing to volunteer.
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NeddySeagoon
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PostPosted: Sun Feb 02, 2014 3:39 pm    Post subject: Reply with quote

Simba7,

The binaries for multilib SPARC that I have (gcc and glibc) are at http://grytpype-thynne.org/~roy/Simba7/
OK I have another glibc but you won't want that. It rendered my box unbootable :)

Have fun.

Contact the proxy maintainers project if you wish to help out, or post bugs with patches at bugs.gentoo.org
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Simba7
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PostPosted: Sun Feb 02, 2014 8:42 pm    Post subject: Reply with quote

When was the last stage3 that included 2.13 or 2.14? I'm trying with the latest stage3 and it's whining about downgrading glibc-2.15.

EDIT: Nevermind. I found a stage3-multilib at http://distfiles.gentoo.org/releases/sparc/autobuilds/current-stage3-sparc64-multilib/stage3-sparc64-multilib-20131111.tar.bz2 . Can't believe I missed that.
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