Re: processor threads

["nagaraju.m" <nagaraju.m@redpinesignals.com>]

Michael,

Thanks for replying.

Can you please forward me any links on how to implement threads support 
to a specific target.


Thanks,
Nagraju


Michael Snyder wrote:
> nagaraju.m wrote:
>> Hi Michael,
>>
>>     I mean to say that we are having 4 hardware threads.  Our company 
>> has its own processor on which we will be working.         The 
>> processor currently we are working has 4 threads in it.
>>
>>     Each thread has it own set of registers (ex: program counter).
>>
>>     Currently the GDB which we are using is supporting only single 
>> thread (ex: thread 0).
>>     Now we trying to use GDB for remaining threads.
>>
>>     My Question is does GDB handles hardware threads??
>
> Good, thank you for the clarification.
>
> The answer is "yes and no".  GDB supports threads, per se, but
> it doesn't have any special knowledge about hardware threads
> as opposed to any other kind of threads.
>
> What you can do (and what others have done successfully before),
> is just teach your remote server/stub/agent to tell gdb
> "I have four threads, and here are their register sets".
>
> Gdb will then just think of them as ordinary threads.
> Should be enough for you to get the job done, with maybe
> a few extra tweaks that can be snuck in as off-band
> monitor commands.
>
> Good luck,
> Michael
>
>
>