Hello,

# [GNU-767] Support changing SVE vector length in remote debugging

* Continued working on the testsuite regressions introduced by my code. - Realised that gdbserver uses “thread->tdesc != NULL” as a proxy of whether it has already attached to the inferior process. My change to track the target description per-thread instead of per-process invalidated this equivalence. Fixed a few places to use “proc->attached” instead, which is the direct way of testing that condition. - Now looking into an issue with gdbserver loading libthread_db.so.

# Misc

- Reviewed Tom Tromey's “[PATCH 00/36] C++-ify breakpoints” patch series¹. Spotted one bug.