2009-06-19 Aleksandar Ristovski <aristovski@qnx.com>

	    Pedro Alves <pedro@codesourcery.com>

	* target.h (struct target_ops) <supports_multi_process>: New
	callback.
	(target_supports_multi_process): New.
	* server.c (handle_query): Even if GDB reports support, only
	enable multi-process if the target also supports it.  Report
	multi-process support only if the target backend supports it.
	* linux-low.c (linux_supports_multi_process): New function.
	(linux_target_ops): Install it as target_supports_multi_process
	callback.