[Bug 1517257] Re: apport-retrace should install and use gdb for target release

[Martin Pitt]

Idea from sprint discussion:

In apport:
 - Don't try to run gdb from the retracing target sandbox

 - Add --gdb-root <path> argument to apport-retrace that will set PATH,
LD_LIBRARY_PATH, and possibly some env var to specify the gdb plugin dir
to appropriate subdirs of <path>. Calling "gdb" should then prefer
running gdb from that dir.

In the retracer deployment:
 - add --gdb-root on the sandbox with the same release but the host's native architecture
 - Ensure that gdb is installed in that

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https://bugs.launchpad.net/bugs/1517257

Title:
  apport-retrace should install and use gdb for target release

Status in Apport:
  Triaged
Status in apport package in Ubuntu:
  Triaged

Bug description:
  apport-retrace will use the version of gdb installed on the system
  performing the retrace. This can cause issues retracing crash reports
  from releases that have a newer toolchain revision than the system
  performing the retrace. Subsequently, it would be better if apport-
  retrace were to install gdb into the sandbox being used for retracing
  and used that version of gdb for analyzing the core dump.

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