[ACTIVITY] Report for week #44

Hello,

# TCWG CI

- Working on Abe change to always add detected flaky tests to the flaky.xfail file, even if they are already present in the baseline results. Sent a few versions of Gerrit review request already.

# [GNU-981] FEAT_GCS (Guarded Control Stack) support in GDB

- Prepared environment to develop and test GDB: built Linux kernel from Mark Brown's arm64-gcs branch and booted it in an Arm FVP supporting the feature. Successfully ran native GDB in it to debug a program (though I didn't use any GCS feature for this test).