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Yocto project - Remote debugging problem [message #1707350]

Thu, 03 September 2015 21:43

Marc Samson

Messages: 3
Registered: September 2015

Junior Member

Hi

I am a newcomer to Eclipse and Linux. I have made a Yocto SDK that I am using in Eclipse to build the demo HelloWorld app that will run on a remote board that has the image corresponding to the SDK I am using.

In my remote debug configuration I setup the target with the ip address and all the necessary info.

When I try to remote debug I get this message:
Launching HelloWorld_gdb_arm-poky-linux-gnueabi has encountered problem.
Error during file upload.
Operation failed. File system input or output error
Operation failed. File system input or output error
Operation failed. File system input or output error

The executable was properly copied to my target. If I go to my target I can run the executable that was copied.

What could be the problem?
thanks for any help.

Ms

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Re: Yocto project - Remote debugging problem [message #1707405 is a reply to message #1707350]

Fri, 04 September 2015 14:02

Marc Khouzam

Messages: 357
Registered: July 2009

Senior Member

Hi,

After uploading the executable, CDT tries to change the permissions to make it executable. Maybe that step fails?
Either way, since you have the executable already, you can tell CDT to skip the upload by checking the appropriate box
in the main tab of your launch configuration. Be careful that if you recompile the binary on the host, you will have
to upload it again yourself.

Marc

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Re: Yocto project - Remote debugging problem [message #1707938 is a reply to message #1707405]

Thu, 10 September 2015 16:17

Marc Samson

Messages: 3
Registered: September 2015

Junior Member

Thanks Marc

I triedwhat you suggested.
I changed the permission manualy and I retried with skipping the copy. Now I have an other error.

Could not start gdbserver on the remote host.

But if I type on remote host "gdbserver --help"

I see the help for gdbserver so it is there.

On the console I have this
Last login: Tue Sep 8 18:43:54 2015 from msamson5
echo $PWD'>'
gdbserver :2345 /home/root;exit
root@nitrogen6x:~# echo $PWD'>'
/home/root>
root@nitrogen6x:~# gdbserver :2345 /home/root;exit
Process /home/root created; pid = 1016
Cannot exec /home/root: Permission denied.

Child exited with status 127
No program to debug. GDBserver exiting.
logout

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Re: Yocto project - Remote debugging problem [message #1707941 is a reply to message #1707938]

Thu, 10 September 2015 17:05

Marc Khouzam

Messages: 357
Registered: July 2009

Senior Member

It looks like gdbserver does not have the permissions to execute your binary which seems to be called /home/root
Make sure that file has executable permissions for the user that you use in your remote launch (your RSE connection prompted for a user/password at some point).

Marc

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