[all-commits] [llvm/llvm-project] 3ad618: Update qHostInfo/LC_NOTE so multiple address bits ...

Jason Molenda via All-commits all-commits at lists.llvm.org
Tue Aug 15 13:21:53 PDT 2023

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3ad618f4aea1ef7442f7ff75d92632aec177a4fd
  Author: Jason Molenda <jmolenda at apple.com>
  Date:   2023-08-15 (Tue, 15 Aug 2023)

  Changed paths:
    M lldb/docs/lldb-gdb-remote.txt
    M lldb/include/lldb/Symbol/ObjectFile.h
    A lldb/include/lldb/Utility/AddressableBits.h
    M lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
    M lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.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/mach-core/ProcessMachCore.cpp
    A lldb/source/Utility/AddressableBits.cpp
    M lldb/source/Utility/CMakeLists.txt

  Log Message:
  Update qHostInfo/LC_NOTE so multiple address bits can be specified

On AArch64 systems, we may have different page table setups for
low memory and high memory, and therefore a different number of
bits used for addressing depending on which half of memory the
address is in.

This patch extends the qHostInfo and LC_NOTE "addrable bits" so
that it can specify the number of addressing bits in high memory
and in low memory separately.  It builds on the patch I added in
https://reviews.llvm.org/D151292 where Process tracks the separate
address masks, and there is a user setting to set them manually.

Differential Revision: https://reviews.llvm.org/D157667

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