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Inspecting crashes intro #2198

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May 22, 2019
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Inspecting crashes intro #2198

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Inspecting crashes intro
peteruithoven May 22, 2019
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Gnome > GNU
peteruithoven May 22, 2019
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Merge branch 'master' into gdb-intro
peteruithoven May 22, 2019
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14 changes: 14 additions & 0 deletions docs/code/os-dev.md
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Expand Up @@ -130,3 +130,17 @@ G_MESSAGES_DEBUG=all ./Application
[More information on message logging](https://developer.gnome.org/glib/stable/glib-Message-Logging.html#g-log).

To view logs from all your applications you can use `journalctl`. [More info](https://www.digitalocean.com/community/tutorials/how-to-use-journalctl-to-view-and-manipulate-systemd-logs).

## Inspecting crashes {#inspecting-crashes}

The [GNU Project Debugger (gdb)](https://www.gnu.org/software/gdb/) can do a lot, but we're mostly going to focus on getting useful information when an application crashes.
1. Open an application in gdb, for example AppCenter by running:
```
gdb io.elementary.appcenter
```
2. Now run this application by typing `run` and pressing enter.
3. If the application doesn't crash right away try reproducing the crash.
4. Get more information by typing `backtrace` and pressing enter.
5. Please share the lines after `(gdb) backtrace`, those should provide useful information.

Another tutorial: [Debugging with GDB](https://betterexplained.com/articles/debugging-with-gdb/)