[Lldb-commits] [PATCH] D97282: [lldb][AArch64] Add memory-tagging qSupported feature

David Spickett via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Tue Feb 23 06:26:17 PST 2021


DavidSpickett created this revision.
Herald added subscribers: danielkiss, kristof.beyls, krytarowski.
DavidSpickett requested review of this revision.
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Herald added a subscriber: lldb-commits.

This feature "memory-tagging+" indicates that lldb-server
supports memory tagging packets. (added in a later patch)

Checking that the system supports MTE requires reading
CPU features which would mean target/OS specific code in
GDBRemoteCommunicationServerCommon.

To avoid this, I've enabled the feature for all AArch64 Linux
at compile time. This is the only platform that has a chance
of supporting tagging. We need to check for tagging per memory
region in any case, so you'll get an error either way if it's
not enabled.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97282

Files:
  lldb/include/lldb/Target/Process.h
  lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
  lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
  lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerCommon.cpp
  lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
  lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h

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