[MonoDevelop] remote debugging a hello world application

[Ian Norton]

Ian Norton <ian.norton-badrul at thales-esecurity.com> wrote:

>Jerrill <jerrill at gmail.com> wrote:
>
>>I'm ultimately going to try and remote debug an application on an
>>embedded
>>Linux device, but I though I would try out the process locally first
>>and
>>have run into a problem.
>>
>>I have the following application (debug-test.cs):
>>
>>-----------------------
>>using System;
>>
>>namespace debugtest
>>{
>>	class MainClass
>>	{
>>		public static void Main (string[] args)
>>		{
>>			Console.WriteLine ("Hello World once!"); //breakpoint here!
>>			Console.WriteLine ("Hello World twice!");
>>			Console.WriteLine ("Hello World three times!");
>>		}
>>	}
>>}
>>---------------------
>>
>>I launch MonoDevelop 2.6 on Ubuntu 11.10 with the environment variable
>>MONODEVELOP_SDB_TEST set to 1. This gives me the Run->Run With->Custom
>>Command Mono Soft Debugger option. I start the debugger listening on
>>port
>>127.0.0.1:10000 and get the "Waiting for debugger to connect..."
>>window.
>>
>>From the command line I execute the following:
>>
>>mono --debug
>>--debugger-agent=transport=dt_socket,address=127.0.0.1:10000
>>debug-test.exe
>>
>>And nothing happens.... The "Waiting for debugger to connect..."
>window
>>never goes away. I can confirm that a connection is made as follows:
>>
>># netstat -n inet
>>Active Internet connections (w/o servers)
>>Proto Recv-Q Send-Q Local Address           Foreign Address        
>>State      
>>...
>>tcp       13      0 127.0.0.1:10000         127.0.0.1:44421        
>>ESTABLISHED
>>...
>>
>>And when I click the Cancel button, only then does the command prompt
>>reappear after the following message:
>>
>>debugger-agent: DWP handshake failed.
>>
>>If I run the debugger without the listener running I get the
>following:
>>
>>debugger-agent: Unable to connect to 127.0.0.1:10000
>>
>>So *something* is happening, but it doesn't appear to be a debugging
>>session.
>>
>>If I debug with Run->Run With->Mono Soft Debugger I can successfully
>>debug.
>>When I inspect how this is all invoked I get the following:
>>
>>#ps aux
>>USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME
>>COMMAND
>>...
>>jerrill   8159  0.1  0.6  65712 13752 pts/1    Sl+  01:03   0:00
>>/usr/bin/gnome-terminal --disable-factory --title MonoDevelop External
>>Console -e bash -c 'cd
>>/home/jerrill/projects/debug-test/debug-test/debug-test/bin/Debug ;
>>/usr/bin/mono  --debug
>>--debugger-agent=transport=dt_socket,address=127.0.0.1:44327
>>"/home/jerrill/projects/debug-test/debug-test/debug-test/bin/Debug/debug-test.exe"
>>
>>; echo; read -p "Press any key to continue..." -n1;'
>>
>>jerrill   8163  0.0  0.0   2212   720 pts/1    S+   01:03   0:00
>>gnome-pty-helper
>>
>>jerrill   8164  0.0  0.0   5396  1128 pts/3    Ss+  01:03   0:00 bash
>>-c cd
>>/home/jerrill/projects/debug-test/debug-test/debug-test/bin/Debug ;
>>/usr/bin/mono  --debug
>>--debugger-agent=transport=dt_socket,address=127.0.0.1:44327
>>"/home/jerrill/projects/debug-test/debug-test/debug-test/bin/Debug/debug-test.exe"
>>
>>; echo; read -p "Press any key to continue..." -n1;
>>
>>jerrill   8165  0.0  0.1  13924  3880 pts/3    Sl+  01:03   0:00
>>/usr/bin/mono --debug
>>--debugger-agent=transport=dt_socket,address=127.0.0.1:44327
>>/home/jerrill/projects/debug-test/debug-test/debug-test/bin/Debug/debug-test.exe
>>
>>I can see that my assembly is being invoked nearly the same way,
>except
>>for
>>using the hidden addin in the failing case.
>>
>>Can anyone shed some light on what I'm doing wrong? 
>>
>>Thank you in advance for your help!
>>Jerrill
>>
>>--
>>View this message in context:
>>http://mono.1490590.n4.nabble.com/remote-debugging-a-hello-world-application-tp4591791p4591791.html
>>Sent from the Mono - MonoDevelop IDE mailing list archive at
>>Nabble.com.
>>_______________________________________________
>>Monodevelop-list mailing list
>>Monodevelop-list at lists.ximian.com
>>http://lists.ximian.com/mailman/listinfo/monodevelop-list
>
>You are doing all the right things, I could only get this working with
>mono 2.10.8 and monodevelop 2.8.x as built from sources, checkout my
>pmono ubuntu packages. I use them at work and often do remote debug.
>
>Ian

http://inorton.wordpress.com/2012/01/19/mono-2-10-8-and-monodevelop-2-8-5-1-packages-for-ubutnu-oneric/