Proposal for Hybrid Threading Model and simpler Async IO

[Florian Weimer]

On 05/07/2014 07:54 PM, Jeremy Manson wrote:

>By contrast, all of the thread-local state in
> libc is stored at (or reached from) the bottom of the stack, and it is
> compiler agnostic.

glibc (and code compile for glibc) addresses thread-local data relative 
to the %fs offset, which (I think) cannot be changed from user space, so 
it can't really be part of stack switching.

-- 
Florian Weimer / Red Hat Product Security Team