TLS Support

[Sebastian Huber]

----- Am 29. Jan 2016 um 18:53 schrieb Joel Sherrill joel.sherrill at gmail.com:

> On Fri, Jan 29, 2016 at 12:21 AM, Sebastian Huber <
> sebastian.huber at embedded-brains.de> wrote:
> 
>> On 28/01/16 21:17, Gedare Bloom wrote:
>>
>>> Do we have a list of target architectures with working TLS?
>>>
>>
>>
>> https://docs.rtems.org/doc-current/share/rtems/html/cpu_supplement/index.html
>>
>>
>>> Is it worth compiling such a list?
>>>
>>
>> Its worth to keep this information up to date.
> 
> 
> At this point, I know mips and x86 are broken. x86 looks like some
> moderately straight forward
> work. MIPS looks harder.

The MIPS TLS support is quite well documented here:

https://www.linux-mips.org/wiki/NPTL

We just need an exception handler to deal with the "rdhwr" instruction.  I am not sure if this works with the GDB simulator.