Hello,
# [GNU-732] GDB support for ARMv9 Scalable Matrix Extension (SME)
* Continued working on gdbserver and remote protocol support for
programs that change the SVE vector length during execution:
- Studied the 2020 discussion around Luis' proposal to support changed
VL size in the Remote Serial Protocol / gdbserver, as well as
relevant parts of the RSP itself.
- Started studying GDB's type system and how it handles dynamic types,
and also the target description code to assess the feasibility of
making the vector registers use a dynamically sized type.
- Luis made a second proposal in that mailing list discussion where
the target description wouldn't be transferred via the remote
protocol, just the vector length. Then both GDB and gdbserver could
locally update their own descriptions based on that. Starting to
think about this alternative. It would probably be simpler than
changing the target description to use a dynamically sized type for
the Z registers.
# Basic setup / onboarding
* Work laptop arrived. Set it up.
--
Thiago
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