[lldb] [llvm] [NFC][DebugInfo][DWARF] Create new low-level dwarf library (PR #145081)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `polly-x86_64-linux-shared` running on `polly-x86_64-gce2` while building `bolt,lldb,llvm,utils` at step 5 "build".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/97/builds/7490

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build) failure: 'ninja' (failure)
...
[1999/4442] Creating library symlink lib/libLLVMObjCopy.so
[2000/4442] Linking CXX shared library lib/libLLVMObjectYAML.so.21.0git
[2001/4442] Creating library symlink lib/libLLVMObjectYAML.so
[2002/4442] Linking CXX shared library lib/libLLVMDebugInfoDWARF.so.21.0git
[2003/4442] Creating library symlink lib/libLLVMDebugInfoDWARF.so
[2004/4442] Linking CXX shared library lib/libLLVMDebugInfoPDB.so.21.0git
[2005/4442] Creating library symlink lib/libLLVMDebugInfoPDB.so
[2006/4442] Linking CXX shared library lib/libLLVMDebugInfoGSYM.so.21.0git
[2007/4442] Creating library symlink lib/libLLVMDebugInfoGSYM.so
[2008/4442] Linking CXX shared library lib/libLLVMDebugInfoLogicalView.so.21.0git
FAILED: lib/libLLVMDebugInfoLogicalView.so.21.0git 
: && /usr/bin/c++ -fPIC -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete -fuse-ld=lld -Wl,--color-diagnostics   -Wl,--gc-sections -shared -Wl,-soname,libLLVMDebugInfoLogicalView.so.21.0git -o lib/libLLVMDebugInfoLogicalView.so.21.0git lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVCompare.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVElement.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVLine.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVLocation.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVObject.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVOptions.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVRange.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVReader.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVScope.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVSort.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVSourceLanguage.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVSupport.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVSymbol.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Core/LVType.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/LVReaderHandler.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVBinaryReader.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVCodeViewReader.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVCodeViewVisitor.cpp.o lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o  -Wl,-rpath,"\$ORIGIN/../lib:/home/worker/buildbot-workers/polly-x86_64-gce2/rundir/llvm.obj/lib:"  lib/libLLVMDebugInfoDWARF.so.21.0git  lib/libLLVMDebugInfoPDB.so.21.0git  lib/libLLVMObject.so.21.0git  lib/libLLVMMC.so.21.0git  lib/libLLVMBinaryFormat.so.21.0git  lib/libLLVMTargetParser.so.21.0git  lib/libLLVMDebugInfoCodeView.so.21.0git  lib/libLLVMSupport.so.21.0git  lib/libLLVMDemangle.so.21.0git  -Wl,-rpath-link,/home/worker/buildbot-workers/polly-x86_64-gce2/rundir/llvm.obj/lib && :
ld.lld: error: undefined symbol: llvm::DWARFExpression::Operation::extract(llvm::DataExtractor, unsigned char, unsigned long, std::optional<llvm::dwarf::DwarfFormat>)
>>> referenced by LVDWARFReader.cpp
>>>               lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o:(bool llvm::function_ref<bool (llvm::DWARFLocationEntry const&)>::callback_fn<llvm::logicalview::LVDWARFReader::processLocationList(llvm::dwarf::Attribute, llvm::DWARFFormValue const&, llvm::DWARFDie const&, unsigned long, bool)::'lambda1'(llvm::DWARFLocationEntry const&)>(long, llvm::DWARFLocationEntry const&))
>>> referenced by LVDWARFReader.cpp
>>>               lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o:(bool llvm::function_ref<bool (llvm::DWARFLocationEntry const&)>::callback_fn<llvm::logicalview::LVDWARFReader::processLocationList(llvm::dwarf::Attribute, llvm::DWARFFormValue const&, llvm::DWARFDie const&, unsigned long, bool)::'lambda1'(llvm::DWARFLocationEntry const&)>(long, llvm::DWARFLocationEntry const&))
>>> referenced by LVDWARFReader.cpp
>>>               lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o:(llvm::logicalview::LVDWARFReader::processLocationList(llvm::dwarf::Attribute, llvm::DWARFFormValue const&, llvm::DWARFDie const&, unsigned long, bool) (.localalias))
>>> referenced 1 more times
collect2: error: ld returned 1 exit status
[2009/4442] Linking CXX shared library lib/libLLVMSymbolize.so.21.0git
[2010/4442] Building X86GenSubtargetInfo.inc...
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/145081