How to Setup GNU Debugger

Open a root terminal in Kali or Linux system and run the command : adb install gdb -y
Now open another terminal and check if genymotion is running and adb is connected or not using adb command : adb devices
If this commands returns some device its good, otherwise we need to connect adb to genymotion using command: adb connect <genymotion-ip:5555>
Now as you are connected to genymotion using adb, lets enter into shell: adb shell
We need to check if we have gdbserver in our genymotion or not, to check this we need to move into location: cd /system/bin/ && ls | grep “gdbserver”
If gdbserver file is there its good, otherwise we need to download it manually and push it using adb to respected location. To download file click here & download Linux 64-bit (x86).
Its time to attach the process. To check the process of any running android application, we can run command: adb shell ps | grep “application-name”
As we have the PID, we can attach it using gdbserver: gdbserver :8888 –attach PID
We also need to forward all the tcp traffic to this port 8888 to do so we can run command: adb forward tcp:8888 tcp:8888
Its time to launch gdb, in the terminal run command : gdb
To start debugging we need to set the target : target remote :8888
Now we are all set to interact with the memory segment and registers of the process.

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