"First packet sent to gdb remote stub?"

[Xinan Tang]

Hi

  I have a question on what is the first packet sent to gdb remote stub?
The gdb I used is v6.1.

  After I issued command `set debug remote 1' and `target remote
udp:host_addr:port", I saw the first packet is "Hc-1". 

  However my remote stub captures a package "+".  Should this ACK
package  be sent first rather than the "Hc-1" package? 

Thanks

--Xinan