[yocto] gdb/gdbserver vs. eclipse
Rudolf J Streif
rudolf.streif at gmail.com
Sat Sep 5 09:17:48 PDT 2015
>
> I think I made some progress - see attached image.
Good.
>
> As you can see I stepped into printf and friends.
>
> For this to work I needed a few more things:
>
> 1) directory needs the be the same on host and target
>
> the executable on the host:
>
> /home/student/BBBworkspace/HelloBBBAutotooled/src/HelloBBBAutotooled
>
> the executable on the target:
>
> /home/student/BBBWorkspace/HelloBBBAutotooled/src/HelloBBBAutotooled
>
I do not have to do that. As a matter of fact the executable on my target is
copied to /usr/bin from the Eclipse workspace. See "Remote Absolute File Path"
in the Debug Configuration.
> 2) .gdbinit
>
> I copied my gdbinit on the host to
>
> /home/student/BBBworkspace/HelloBBBAutotooled/.gdbinit
>
Yes, that's where Eclipse's Debug Configuration expects it if you do not change
the setting of "GDB Command File" in the Main subtab of the Debugger tab in
the Debug configuration.
> that's the .gdbinit
>
> # don't use default libs from x86/Ubuntu:
> set sysroot /opt/adt-target-sysroot/beagle-bone-black-ml
> set solib-absolute-prefix /opt/adt-target-sysroot/beagle-bone-black-ml
> set solib-search-path /opt/adt-target-sysroot/beagle-bone-black-ml
> # point to the libraries with debug info:
> set debug-file-directory
> /opt/adt-target-sysroot/beagle-bone-black-ml/usr/lib/debug
> # point to the source code:
> set substitute-path /usr/src/debug
> /opt/adt-target-sysroot/beagle-bone-black-ml/usr/src/debug
> set substitute-path /
> /opt/adt-target-sysroot/beagle-bone-black-ml/usr/src/debug
>
Yes, looks like mine except that my target is a MinnowBoard Max and I
installed my SDK in a different location.
> 3) Once you enter the debug view you need to go to the gdb console and:
>
> source /home/student/BBBworkspace/HelloBBBAutotooled/.gdbinit
>
Strange. I don't have to do that if GDB command file is set to the path in the
workspace. I would expect that Eclipse passes the .gdbinit from the workspace
explicitly to GDB. However, I do have
add-auto-load-safe-path .
in my global .gdbinit (~/.gdbinit).
Cheers,
Rudi
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