CODEWITHSUNDEEP
c++debugginggdbcloud9-ide
amigo421
amigo421

Reputation: 2541

Cloud9 IDE: debug c++ application

tried to run simple c++ applciation in Cloud9 online IDE. I'm newbie in remote gdb debugging ("remote - I don't mean real remote debug, but a using client/server debug , as I see there is actually local debugging but, anyway , I see runner configuration that uses gdbserver and gdb on the same host). I'm using c++ runner provided on the community forum, which has an only difference from default c++ runner that builds using makefile instead of direct g++ compilation. here it is:

{
  "script": [
    "set -e",
    "cd /home/ubuntu/workspace/build",
    "make",
    "chmod 755 \"my_app\"",
    "if [ \"$debug\" == true ]; then ",
      "gdbserver --once :15470 \"my_app\" $args",
    "else",
      "my_app $args",
    "fi"
  ],
  "info": "Running Project",
  "debugport": 15470,
  "debugger": "gdb",
  "executable": "my",
  "maxdepth": 50,
  "$debugDefaultState": false,
  "env": {},
  "selector": "^.*\\.(cpp|cc)$"
}

when I'm running this with enabled debug, I see this output:

Running Project                                                                                                                                                                                                                                      
....
[100%] Built target my_app                                                                                                                                                                                                                         
Process my_app created; pid = 25969                                                                                                                                                                                                            
Listening on port 15470                                                                                                                                                                                                                              
Remote debugging from host 127.0.0.1                                                                                                                                                                                                                 
My Test Application                                                                                                                                                                                                                                     
        description of my test applciation                                                                                                                                                                                                       
usage:                                                                                                                                                                                                                                               
         my_app [task_name] [task_parameters ...]                                                                                                                                                                                              

Child exited with status 1                                                                                                                                                                                                                           
GDBserver exiting

so this is a default run of the app without parameters , which only shows a description . however it doesn't stop on any breakpoint. this is a primary issue and my question here

From the output above , for me, it is unclear - is gdb successfully connected to gdbserver or not? so the problem is in the connection between gdbserver and gdb ? or in IDE which didn't stop on the breakpoint? (I've set the breakpoints in a lot of places, including before/after description output and at start/end of main function)

Upvotes: 2

Views: 1504

Answers (1)

amigo421
amigo421

Reputation: 2541

As suggested in comments, the problem was resolved by adding gcc flags to add debug info into the build, I mean

"/usr/bin/g++ -ggdb3

actually I was using C9 for a build and debug c++ project based on cmake . so it works , no problem but requires some effort to tune builders and runners. against each target in cmake manually. it's not so useful, but can be used

Upvotes: 1

Related Questions