[Lldb-commits] [PATCH] D82863: [LLDB] Add support to resize SVE registers at run-time

Muhammad Omair Javaid via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Tue Jun 30 04:18:59 PDT 2020

omjavaid created this revision.
omjavaid added a reviewer: labath.
Herald added a subscriber: tschuett.
Herald added a reviewer: rengolin.
omjavaid added parent revisions: D82853: [LLDB] Support custom expedited register set in gdb-remote, D82855: [LLDB] Send SVE vg register in custom expedited registerset , D82857: [LLDB] Add per-thread register infos shared pointer in gdb-remote, D79699: Add ptrace register access for AArch64 SVE registers.

This patch builds on previously submitted SVE patches regarding expedited register set and per thread register infos. (D82853 <https://reviews.llvm.org/D82853> D82855 <https://reviews.llvm.org/D82855> and D82857 <https://reviews.llvm.org/D82857>)

We need to resize SVE register based on value received in expedited list. Also we need to resize SVE registers when we write vg register using register write vg command. The resize will result in a updated offset for all of fpr and sve register set. This offset will be configured in native register context by RegisterInfoInterface and will be updated  by GDBRemoteProcess and GDBRemoteRegisterContext.

A follow up patch will provide a API test to verify this change.



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