GDB - establish communication between gdb and OCD Deamon









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I write OCD Daemon for an architecture that is not yet supported by already existing ones. As for now I try to establish remote communication between GDB <-> My_OCD_Daemon and here problems start. Right after I demand connection with my daemon by "target remote tcp:IP:PORT" gdb starts sending a bunch of requests, here are few of them:



Sending packet: $Hg0#df...Ack
Packet received:



Sending packet: $qxtn#cb...Ack



Packet received: XOCD



...



Sending packet: $qxtocdversion#99...Ack



Packet received: 6000



Sending packet: $p2b0#34...Ack



Reply contains invalid hex digit 79



Fetching next packet



...



For most of them it is enough if I reply just '+' which denotes successful reception. However there are commands like $p2b0#34 which expects some sane size value back.



So, is there a way to skip this never ending chain of requests from GDB and make it wait for user input?
How such init/hand-shake procedure shall look like?



Thanks.










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    I write OCD Daemon for an architecture that is not yet supported by already existing ones. As for now I try to establish remote communication between GDB <-> My_OCD_Daemon and here problems start. Right after I demand connection with my daemon by "target remote tcp:IP:PORT" gdb starts sending a bunch of requests, here are few of them:



    Sending packet: $Hg0#df...Ack
    Packet received:



    Sending packet: $qxtn#cb...Ack



    Packet received: XOCD



    ...



    Sending packet: $qxtocdversion#99...Ack



    Packet received: 6000



    Sending packet: $p2b0#34...Ack



    Reply contains invalid hex digit 79



    Fetching next packet



    ...



    For most of them it is enough if I reply just '+' which denotes successful reception. However there are commands like $p2b0#34 which expects some sane size value back.



    So, is there a way to skip this never ending chain of requests from GDB and make it wait for user input?
    How such init/hand-shake procedure shall look like?



    Thanks.










    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I write OCD Daemon for an architecture that is not yet supported by already existing ones. As for now I try to establish remote communication between GDB <-> My_OCD_Daemon and here problems start. Right after I demand connection with my daemon by "target remote tcp:IP:PORT" gdb starts sending a bunch of requests, here are few of them:



      Sending packet: $Hg0#df...Ack
      Packet received:



      Sending packet: $qxtn#cb...Ack



      Packet received: XOCD



      ...



      Sending packet: $qxtocdversion#99...Ack



      Packet received: 6000



      Sending packet: $p2b0#34...Ack



      Reply contains invalid hex digit 79



      Fetching next packet



      ...



      For most of them it is enough if I reply just '+' which denotes successful reception. However there are commands like $p2b0#34 which expects some sane size value back.



      So, is there a way to skip this never ending chain of requests from GDB and make it wait for user input?
      How such init/hand-shake procedure shall look like?



      Thanks.










      share|improve this question













      I write OCD Daemon for an architecture that is not yet supported by already existing ones. As for now I try to establish remote communication between GDB <-> My_OCD_Daemon and here problems start. Right after I demand connection with my daemon by "target remote tcp:IP:PORT" gdb starts sending a bunch of requests, here are few of them:



      Sending packet: $Hg0#df...Ack
      Packet received:



      Sending packet: $qxtn#cb...Ack



      Packet received: XOCD



      ...



      Sending packet: $qxtocdversion#99...Ack



      Packet received: 6000



      Sending packet: $p2b0#34...Ack



      Reply contains invalid hex digit 79



      Fetching next packet



      ...



      For most of them it is enough if I reply just '+' which denotes successful reception. However there are commands like $p2b0#34 which expects some sane size value back.



      So, is there a way to skip this never ending chain of requests from GDB and make it wait for user input?
      How such init/hand-shake procedure shall look like?



      Thanks.







      gdb daemon gnu






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      asked Nov 12 at 0:06









      DannyS

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          Okay so it looks like we can not "bypass" or "skip" this initial stage of gdb. It is used to configure gdb session and shall be conducted with care. Passing odd values to gdb will result in odd baheviour during debugging session.






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            Okay so it looks like we can not "bypass" or "skip" this initial stage of gdb. It is used to configure gdb session and shall be conducted with care. Passing odd values to gdb will result in odd baheviour during debugging session.






            share|improve this answer
























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              Okay so it looks like we can not "bypass" or "skip" this initial stage of gdb. It is used to configure gdb session and shall be conducted with care. Passing odd values to gdb will result in odd baheviour during debugging session.






              share|improve this answer






















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                up vote
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                Okay so it looks like we can not "bypass" or "skip" this initial stage of gdb. It is used to configure gdb session and shall be conducted with care. Passing odd values to gdb will result in odd baheviour during debugging session.






                share|improve this answer












                Okay so it looks like we can not "bypass" or "skip" this initial stage of gdb. It is used to configure gdb session and shall be conducted with care. Passing odd values to gdb will result in odd baheviour during debugging session.







                share|improve this answer












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                share|improve this answer










                answered Nov 27 at 9:43









                DannyS

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