[Ubuntu Daily PPA] How to install debug symbols package

[NormandC]

@sgrogan wrote recently that he activated the debug symbols packages on the Daily Builds PPA. (Thanks! )

From what I understand, this may allow to generate a more useful backtrace log, but AFAIK nobody has tested this so far.

The problem is that there is no easy way to install these debug symbols packages.

From what I was able to gather, here's what you need to do to install debug symbols packages.

Please note that you cannot use GUI tools! I tried using the Software sources GUI tool and it messed up my sources!

Note: on Kubuntu and other KDE-based desktops, please replace gksudo gedit with kdesudo kate.

First, the PPA needs one more deb line, and the file in sources.list.d needs to be edited.

On Ubuntu 14.04 LTS:

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gksudo gedit /etc/apt/sources.list.d/freecad-maintainers-freecad-daily-trusty.list

On Ubuntu 16.04 LTS:

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gksudo gedit /etc/apt/sources.list.d/freecad-maintainers-freecad-daily-xenial.list

On Ubuntu 16.10:

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gksudo gedit /etc/apt/sources.list.d/freecad-maintainers-freecad-daily-yakkety.list

On Ubuntu 17.04:

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gksudo gedit /etc/apt/sources.list.d/freecad-maintainers-freecad-daily-zesty.list

Next, we copy the first line starting with deb and ending with main, and we append /debug to the copied line.

For trusty, the new line will look like this:

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deb http://ppa.launchpad.net/freecad-maintainers/freecad-daily/ubuntu trusty main/debug

For other versions, "trusty" will be replaced by the proper distro name.

Save the changes and close the file.

Next, the sources list needs to be updated:

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sudo apt-get update

And finally we can install the debug symbols package:

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sudo apt-get install freecad-daily-dbgsym

The package was not listed in the Synaptic package manager even after refreshing the sources, I was only able to install it from the terminal.

Now to test!


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Source: How to install debug symbols for installed packages?

[Kunda1]

Now to test!

Nice!
Linking https://forum.freecadweb.org/viewtopic.php?t=20007
When we get this working we should mention it in the Wiki FreeCAD Debugging page

[sgrogan]

@sgrogan wrote recently that he activated the debug symbols packages on the Daily Builds PPA. (Thanks! )

From what I understand, this may allow to generate a more useful backtrace log, but AFAIK nobody has tested this so far.

The problem is that there is no easy way to install these debug symbols packages.

I haven't tried yet, but why wouldn't

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sudo apt-get install freecad-daily-dbgsym

work?
Thanks for the link, it's good to know that gdb can find the libs automatically.

[NormandC]

I haven't tried yet, but why wouldn't

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sudo apt-get install freecad-daily-dbgsym

work?

Because that's one of the first things I tried and it didn't work, the package wasn't found. You really need to edit the freecad-maintainers-freecad-daily-<version>.list file and add the main/debug line. Only then is the package found.

it's good to know that gdb can find the libs automatically.

It's untested

[sgrogan]

Because that's one of the first things I tried and it didn't work, the package wasn't found. You really need to edit the freecad-maintainers-freecad-daily-<version>.list file and add the main/debug line. Only then is the package found.

My question was more rhetorical, I assumed that you had tried it already. The broken link at the end of your link probably explained it.
I googled around before I activated this and the debug symbols should not effect performance. This seems distinct from a debug build. Thanks for testing this NormandC! Have you crashed FreeCAD on purpose yet?

[NormandC]

The broken link at the end of your link probably explained it.

Broken link?

I read that by default, Canonical didn't want the package software (like Synaptic) to be polluted with debug packages, since most end users will never use them.

Have you crashed FreeCAD on purpose yet?

I can't seem to leave the forum and try!

[sgrogan]

Broken link?

EDIT:
from the comments ppa.launchpad.net/USER/PPA/ubuntu but it's not a real link

I can't seem to leave the forum and try!

FreeCAD doesn't crash easily anyway, you must work at it

[kkremitzki]

Rather than doing gksudo gedit etc, it's also easy to just use sudo -e FILENAME which will open up FILENAME with whatever editor the environment variable EDITOR is set to, e.g. for me I have:

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$ echo $EDITOR
/usr/bin/nvim

[NormandC]

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$ echo $EDITOR

Returns an empty line for me. I've never set this variable and wouldn't know how, which I'm pretty sure is the case for most Ubuntu users.

sudo -e FILENAME opens the file in nano

I'm a GUI guy, I use the terminal only when I *have* to. A terminal-based text editor is a no-go for me.

[kkremitzki]

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$ echo $EDITOR

Returns an empty line for me. I've never set this variable and wouldn't know how, which I'm pretty sure is the case for most Ubuntu users.

sudo -e FILENAME opens the file in nano

I'm a GUI guy, I use the terminal only when I *have* to. A terminal-based text editor is a no-go for me.

By default Ubuntu uses nano, yeah; it's vi(m) in Centos and Arch, I believe. You can set it by, for example,

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echo "export EDITOR=vim" >> ~/.bashrc

But if you're a GUI guy and not a fan of nano I doubt vim would be any preferable this is more of an aside for people who prefer to do things in the command line.