Hello,
# [GNU-767] Support changing SVE vector length in remote debugging
* Continued working on the testsuite regressions introduced by my code.
- Found out that the crash I was investigating (which happens when
gdbserver thinks that the kernel doesn't support SVE and crashes)
only occurs with kernel v5.4 from Ubuntu 20.04 and not with
Ubuntu 22.04's v5.15. In the former version,
ptrace(PTRACE_GETREGSET, …, NT_ARM_SVE, …) often returns -1 (but not
always) and gdbserver interprets this as meaning that SVE isn't
supported. The newer kernel always returns successfully from this
call. gdbserver still acts weird so there's more digging to do, but
at least it doesn't crash.
# Misc
- Took one day of vacation.
--
Thiago
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