Re: [Qemu-devel] [PATCH] arm eabi TLS

[Thayne Harbaugh]

On Thu, 2007-12-13 at 01:21 +0000, Paul Brook wrote:
> > - It would be good to limit the changes in the CPU emulation code to
> > handle the TLS. For example, on MIPS, the TLS register must not be
> > stored in the CPU state. Same for ARM.
> 
> I disagree. The TLS register is part of the CPU state. On many machines 
> (including ARMv6 CPUs) it's an actual CPU register. I'm fairly sure the same 
> is true for recent MIPS revisions.

I agree with Paul.  Some archs actually use a CPU register and require
the kernel to help manage TLS.  Other archs can manage TLS completely in
user space.  It's been a while since I've investigated all the details
for each arch but I'll go review it.