[patch] gdbserver: Add qnx target

[Aleksandar Ristovski]

Hello,

This patch adds QNX Neutrino gdbserver. The server is in 
working order. It does not support multiprocess.

Patch depends on 
http://sourceware.org/ml/gdb-patches/2009-06/msg00428.html


The patch is quite straight-forward. The only more invasive 
change is the change to configure.ac and Makefile.in.

This is why I am attaching two patches and two change logs.

1) gdbserver-extra_srv_libs - ChangeLog
(Note: this patch is not complete, I could not regenerate 
configure since I do not have autoconf version 2.59, I would 
appreciate if someone could generate if for me).

* Makefile.in (gdbreplay): Add $(GDBSERVER_LIBS) to linking 
step.
* configure.ac (GDBSERVER_LIBS): Add $extra_srv_libs.


2) gdbserver-ntotarget - ChangeLog

* configure.srv (i[34567]86-*-nto*): New target.
* nto-low.c, nto-low.h, nto-x86-low.c: New files.
* remote-utils.c (include sys/iomgr.h): New include for 
__QNX__ only.
(nto_comctrl): New function for __QNX__ only.
(enable_async_io, disable_async_io): Call nto_comcntrl for 
__QNX__ only.


Thank you,

-- 
Aleksandar Ristovski
QNX Software Systems
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