[yocto] using gdb with externalsrc

[Dave Kimble]

Yes, I'm able to debug the externalsrc component. I can see variables, set breakpoints, step/next through the code etc. (so the symbols are valid). And local changes to the externalsrc component are reflected when I debug.

But I can't list the externalsrc component source code from within gdb (or find it anywhere in the image). The source for all of the other components is in the image (and I can list it in gdb). When I try to list the code for the externalsrc component, gdb prints this error message:
"[path on my build? machine]/sourceFile.c: No such file or directory."

If I don't use externalsrc at all, I can debug all of the components and list source code for all of them from within gdb.

So, I can't solve how to get the externalsrc source code into the image. I don't mind if I have to use "set substitute-path" from within gdb if externalsrc source files are put in a different place (although, it'd be ideal if they were put in the same place).

Thanks


________________________________________
From: Khem Raj <raj.khem at gmail.com>
Sent: Wednesday, July 15, 2015 1:49 PM
To: Dave Kimble
Cc: yocto at yoctoproject.org
Subject: Re: [yocto] using gdb with externalsrc

On Wed, Jul 15, 2015 at 9:36 AM, Dave Kimble <dkimble at alticast.com> wrote:
> We've got a component of an existing Yocto project under active development
> that we'd like to debug with gdb.
>
> We've added these features to get gdb and the debug symbol packages into the
> image:
>
> EXTRA_IMAGE_FEATURES = "debug-tweaks tools-debug"
>
> IMAGE_FEATURES = "ssh-server-openssh dbg-pkgs"
>
>
> We've added these variables to build the component under active development
> from the local code:
> INHERIT += "externalsrc"
> EXTERNALSRC_pn-[component] = "[local source code path]/[component]"
>
> All seems well, as the build succeeds and the component in the image
> reflects local code changes. However, the component source code never makes
> it into the image, so it can't be referenced in gdb.
>
> Is there a secret to using dbg-pkgs and EXTERNALSRC together?

Can you check if -dbg package for extrnalsrc component is installed ?
secondly, does the debugging work if you dont isue externalsrc for
this particular component.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.yoctoproject.org/pipermail/yocto/attachments/20150715/38e02d42/attachment.html>