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Re: thread-ready ABIs

To: "H . J . Lu" <>
Subject: Re: thread-ready ABIs
From: Ulrich Drepper <>
Date: 18 Jan 2002 11:20:17 -0800
Cc: GNU libc hacker <>,
In-reply-to: <>
References: <m3elkoa5dw.fsf@myware.mynet> <> <m3elkn4ikq.fsf@myware.mynet> <>
Reply-to: (Ulrich Drepper)
User-agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.5 (asparagus)
"H . J . Lu" <> writes:

> I can write to k0/k1. But the value is not perserved by kernel.

Strange.  This means the registers cannot have been used so far and if
the kernel can be changed it is free.

> I don't think so. k0/k1 is reserved for OS. I don't know if OS can
> restore it for use space or not.

There are so many different MIPS implementations that I wouldn't bet
on it.  One would have to look at the minimum architecture definition.
Also, what do the new MIPS32 cores do?

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