[all-commits] [llvm/llvm-project] 34a8e6: [LLDB] Enable 64 bit debug/type offset

[Alexander Yermolovich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 34a8e6eee666fe1e67b8b689abe5e4e95bf6b166
      https://github.com/llvm/llvm-project/commit/34a8e6eee666fe1e67b8b689abe5e4e95bf6b166
  Author: Alexander Yermolovich <ayermolo at meta.com>
  Date:   2023-02-22 (Wed, 22 Feb 2023)

  Changed paths:
    M lldb/include/lldb/Core/dwarf.h
    M lldb/include/lldb/Symbol/DWARFCallFrameInfo.h
    M lldb/source/Plugins/SymbolFile/DWARF/AppleDWARFIndex.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DIERef.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DIERef.h
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFBaseDIE.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfo.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.h
    M lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/DebugNamesDWARFIndex.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/ManualDWARFIndex.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/NameToDIE.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.cpp
    M lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDwo.h
    M lldb/test/Shell/SymbolFile/DWARF/DW_AT_range-DW_FORM_sec_offset.s
    M lldb/unittests/Expression/DWARFExpressionTest.cpp
    M lldb/unittests/SymbolFile/DWARF/DWARFIndexCachingTest.cpp

  Log Message:
  -----------
  [LLDB] Enable 64 bit debug/type offset

This came out of from https://discourse.llvm.org/t/dwarf-dwp-4gb-limit/63902
With big binaries we can have .dwp files where .debug_info.dwo section can grow
beyond 4GB. We would like to support this in LLVM and in LLDB.

The plan is to enable manual parsing of cu/tu index in DWARF library
(https://reviews.llvm.org/D137882), and then
switch internal index data structure to 64 bit.
For the second part is to enable 64bit offset support in LLDB with
this patch.

Reviewed By: labath

Differential Revision: https://reviews.llvm.org/D138618