[all-commits] [llvm/llvm-project] 593522: Add an explicit API to read the Xcode SDK DWARF at...

[adrian-prantl via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 5935227e11f5b8e7111ee4a076c10a62d0648689
      https://github.com/llvm/llvm-project/commit/5935227e11f5b8e7111ee4a076c10a62d0648689
  Author: Adrian Prantl <aprantl at apple.com>
  Date:   2020-05-06 (Wed, 06 May 2020)

  Changed paths:
    M lldb/include/lldb/Core/Module.h
    M lldb/include/lldb/Symbol/SymbolFile.h
    M lldb/source/Core/Module.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/unittests/SymbolFile/DWARF/XcodeSDKModuleTests.cpp

  Log Message:
  -----------
  Add an explicit API to read the Xcode SDK DWARF attribute from compile units

When debugging from a SymbolMap the creation of CompileUnits for the
individual object files is so lazy that RegisterXcodeSDK() is not
invoked at all before the Swift TypeSystem wants to read it. This
patch fixes this by introducing an explicit
SymbolFile::ParseXcodeSDK() call that can be invoked deterministically
before the result is required.

<rdar://problem/62532151+62326862>

https://reviews.llvm.org/D79273