Need to autostart gdb and enable debugging to a file

graysky · 2019-01-07 16:20:51

Currently, I have an autostart entry in lxde:

xfce4-terminal --geometry 120x30 -e "gdb -ex run /usr/lib/kodi/kodi-x11"

When the bug manifests itself, I will need to:
1) alt+TAB to the xterm
2) physically type `ctrl+c`
3) physically type `thread apply all bt`
4) save the contents of the terminal to a file

Is there any method to automate some or all of those steps?

Last edited by graysky (2019-01-07 17:32:42)

eschwartz · 2019-01-07 18:01:52

Is your question just about how to bash script with redirection to a dynamic file? Because you can just redirect >$variable or >$(command substitution).

As for the question you didn't ask, why are you trying to run gdb in the background, since if you're not doing an interactive session while running the program and trying to modify its state, then you can just print information about an existing dump using coredumpctl.

graysky · 2019-01-07 22:43:13

It wasn't clear to me how to save a dump using the method I outlined. Perhaps something like this would be better:

gdb /usr/lib/kodi/kodi.bin --core=filename --batch -ex "thread apply all bt" 2>/dev/null >> /path/to/trace.log

eschwartz · 2019-01-08 00:10:48

I'm very confused, systemd-coredump is automatically configured by default to acquire and save coredumps for a program that terminates with the relevant signals.

So asking for help in your original post "how do I background a process run indirectly using gdb to automatically save a coredump" was a bit... confusing. Your edits have not exactly cleared things up, though you've now obscured the meaning of my initial response.

"When the bug manifests itself" -- nice, you never even mentioned there was a bug in the first place, now it is this well-known thing.

Arch Linux

#1 2019-01-07 16:20:51

Need to autostart gdb and enable debugging to a file

#2 2019-01-07 18:01:52

Re: Need to autostart gdb and enable debugging to a file

#3 2019-01-07 22:43:13

Re: Need to autostart gdb and enable debugging to a file

#4 2019-01-08 00:10:48

Re: Need to autostart gdb and enable debugging to a file

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