[all-commits] [llvm/llvm-project] 5ea091: [lldb][AArch64] Add memory tag writing to lldb

[David Spickett via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5ea091a8174bcce78839156bd044831cb5211d06
      https://github.com/llvm/llvm-project/commit/5ea091a8174bcce78839156bd044831cb5211d06
  Author: David Spickett <david.spickett at linaro.org>
  Date:   2021-07-27 (Tue, 27 Jul 2021)

  Changed paths:
    M lldb/include/lldb/Target/Process.h
    M lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.cpp
    M lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationClient.h
    M lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.cpp
    M lldb/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
    M lldb/source/Target/Process.cpp
    M lldb/unittests/Process/gdb-remote/GDBRemoteCommunicationClientTest.cpp

  Log Message:
  -----------
  [lldb][AArch64] Add memory tag writing to lldb

This adds memory tag writing to Process and the
GDB remote code. Supporting work for the
"memory tag write" command. (to follow)

Process WriteMemoryTags is similair to ReadMemoryTags.
It will pack the tags then call DoWriteMemoryTags.
That function will send the QMemTags packet to the gdb-remote.

The QMemTags packet follows the GDB specification in:
https://sourceware.org/gdb/current/onlinedocs/gdb/General-Query-Packets.html#General-Query-Packets

Note that lldb-server will be treating partial writes as
complete failures. So lldb doesn't need to handle the partial
write case in any special way.

Reviewed By: omjavaid

Differential Revision: https://reviews.llvm.org/D105181