[all-commits] [llvm/llvm-project] ef006e: [CodeView] Add source languages ObjC and ObjC++

[Stefan Gränitz via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ef006eb0bc5e8d069deee7e7d93d7cf5d55fd791
      https://github.com/llvm/llvm-project/commit/ef006eb0bc5e8d069deee7e7d93d7cf5d55fd791
  Author: Stefan Gränitz <stefan.graenitz at gmail.com>
  Date:   2023-03-17 (Fri, 17 Mar 2023)

  Changed paths:
    M lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp
    M lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp
    M llvm/include/llvm/DebugInfo/CodeView/CodeView.h
    M llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
    M llvm/lib/DebugInfo/CodeView/EnumTables.cpp
    M llvm/lib/DebugInfo/PDB/PDBExtras.cpp
    M llvm/lib/DebugInfo/PDB/PDBSymbolCompiland.cpp
    M llvm/test/DebugInfo/COFF/language.ll
    A llvm/test/DebugInfo/COFF/objc.ll
    A llvm/test/DebugInfo/COFF/objcpp.ll
    M llvm/tools/llvm-pdbutil/MinimalSymbolDumper.cpp

  Log Message:
  -----------
  [CodeView] Add source languages ObjC and ObjC++

This patch adds llvm::codeview::SourceLanguage entries, DWARF translations, and PDB source file extensions in LLVM and allow LLDB's PDB parsers to recognize them correctly.

The CV_CFL_LANG enum in the Visual Studio 2022 documentation https://learn.microsoft.com/en-us/visualstudio/debugger/debug-interface-access/cv-cfl-lang defines:
```
    CV_CFL_OBJC     = 0x11,
    CV_CFL_OBJCXX   = 0x12,
```

Since the initial commit in D24317, ObjC was emitted as C language and ObjC++ as Masm.

Reviewed By: DavidSpickett

Differential Revision: https://reviews.llvm.org/D146221