nto_extra_thread_info

[Aleksandar Ristovski]

Hello,

This patch introduces extra thread info for nto target, and 
fixes a bug in procfs_find_new_threads.

Thanks,

-- 
Aleksandar Ristovski
QNX Software Systems

ChangeLog:


* nto-tdep.c (nto_thread_state_str): New array.
(nto_extra_thread_info): New function definition.
* nto-tdep.h (gdbthread.h): New include.
(private_thread_info): New struct.
(nto_extra_thread_info): New declaration.
* nto-procfs.c (procfs_thread_alive): Properly check if
thread is still alive.
(update_thread_private_data_name, 
update_thread_private_data): New
function definition.
(procfs_find_new_threads): Fetch thread private data.
(init_procfs_ops): Register to_extra_thread_info.



(change log not exactly as shown; attaching it for clarity)
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