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

Thu Jun 26 12:44:13 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-ppc64le-linux-multistage` running on `ppc64le-clang-multistage-test` while building `bolt,lldb,llvm,utils` at step 4 "build stage 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/76/builds/10780

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

```
Step 4 (build stage 1) failure: 'ninja' (failure)
...
[5468/6440] Linking CXX executable bin/llvm-sim
[5469/6440] Linking CXX executable bin/llvm-tli-checker
[5470/6440] Creating library symlink lib/libLLVMTarget.so
[5471/6440] Building CXX object lib/Target/RISCV/TargetInfo/CMakeFiles/LLVMRISCVInfo.dir/RISCVTargetInfo.cpp.o
[5472/6440] Building CXX object lib/Target/RISCV/MCTargetDesc/CMakeFiles/LLVMRISCVDesc.dir/RISCVMCAsmInfo.cpp.o
[5473/6440] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVConstantPoolValue.cpp.o
[5474/6440] Creating library symlink lib/libLLVMBitWriter.so
[5475/6440] Building CXX object lib/Target/RISCV/CMakeFiles/LLVMRISCVCodeGen.dir/RISCVSelectionDAGInfo.cpp.o
[5476/6440] Linking CXX shared library lib/libLLVMSandboxIR.so.21.0git
[5477/6440] Linking CXX shared library lib/libLLVMDebugInfoLogicalView.so.21.0git
FAILED: lib/libLLVMDebugInfoLogicalView.so.21.0git 
: && /usr/lib64/ccache/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-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wl,-z,defs -Wl,-z,nodelete   -Wl,-rpath-link,/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/./lib  -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/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/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/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/stage1/lib && :
lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o: In function `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)::{lambda(llvm::DWARFLocationEntry const&)#3}>(long, llvm::DWARFLocationEntry const&)':
LVDWARFReader.cpp:(.text._ZN4llvm12function_refIFbRKNS_18DWARFLocationEntryEEE11callback_fnIZNS_11logicalview13LVDWARFReader19processLocationListENS_5dwarf9AttributeERKNS_14DWARFFormValueERKNS_8DWARFDieEmbEUlS3_E1_EEblS3_+0x354): undefined reference to `llvm::DWARFExpression::Operation::extract(llvm::DataExtractor, unsigned char, unsigned long, std::optional<llvm::dwarf::DwarfFormat>)'
LVDWARFReader.cpp:(.text._ZN4llvm12function_refIFbRKNS_18DWARFLocationEntryEEE11callback_fnIZNS_11logicalview13LVDWARFReader19processLocationListENS_5dwarf9AttributeERKNS_14DWARFFormValueERKNS_8DWARFDieEmbEUlS3_E1_EEblS3_+0x39c): undefined reference to `llvm::DWARFExpression::Operation::extract(llvm::DataExtractor, unsigned char, unsigned long, std::optional<llvm::dwarf::DwarfFormat>)'
lib/DebugInfo/LogicalView/CMakeFiles/LLVMDebugInfoLogicalView.dir/Readers/LVDWARFReader.cpp.o: In function `llvm::logicalview::LVDWARFReader::processLocationList(llvm::dwarf::Attribute, llvm::DWARFFormValue const&, llvm::DWARFDie const&, unsigned long, bool) [clone .localalias.4]':
LVDWARFReader.cpp:(.text._ZN4llvm11logicalview13LVDWARFReader19processLocationListENS_5dwarf9AttributeERKNS_14DWARFFormValueERKNS_8DWARFDieEmb+0x2f4): undefined reference to `llvm::DWARFExpression::Operation::extract(llvm::DataExtractor, unsigned char, unsigned long, std::optional<llvm::dwarf::DwarfFormat>)'
LVDWARFReader.cpp:(.text._ZN4llvm11logicalview13LVDWARFReader19processLocationListENS_5dwarf9AttributeERKNS_14DWARFFormValueERKNS_8DWARFDieEmb+0x4bc): undefined reference to `llvm::DWARFExpression::Operation::extract(llvm::DataExtractor, unsigned char, unsigned long, std::optional<llvm::dwarf::DwarfFormat>)'
collect2: error: ld returned 1 exit status
[5478/6440] Creating library symlink lib/libLLVMSandboxIR.so
[5479/6440] Building CXX object tools/llvm-exegesis/CMakeFiles/llvm-exegesis.dir/llvm-exegesis.cpp.o
In file included from /usr/include/c++/8/cassert:44,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSection.h:21,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCContext.h:24,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/tools/llvm-exegesis/lib/DisassemblerHelper.h:20,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/tools/llvm-exegesis/lib/Analysis.h:18,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/tools/llvm-exegesis/llvm-exegesis.cpp:14:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h: In member function ‘llvm::GOFF::ESDTextStyle llvm::MCSectionGOFF::getTextStyle() const’:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h:113:51: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
     assert(isED() || isPR() || isVirtualSection() && "Expect ED or PR section");
                                ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[5480/6440] Building CXX object lib/Target/RISCV/MCTargetDesc/CMakeFiles/LLVMRISCVDesc.dir/RISCVMCCodeEmitter.cpp.o
In file included from /usr/include/c++/8/cassert:44,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSection.h:21,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCContext.h:24,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCCodeEmitter.cpp:20:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h: In member function ‘llvm::GOFF::ESDTextStyle llvm::MCSectionGOFF::getTextStyle() const’:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h:113:51: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
     assert(isED() || isPR() || isVirtualSection() && "Expect ED or PR section");
                                ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[5481/6440] Building CXX object lib/Target/RISCV/MCTargetDesc/CMakeFiles/LLVMRISCVDesc.dir/RISCVAsmBackend.cpp.o
In file included from /usr/include/c++/8/cassert:44,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSection.h:21,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCContext.h:24,
                 from /home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp:14:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h: In member function ‘llvm::GOFF::ESDTextStyle llvm::MCSectionGOFF::getTextStyle() const’:
/home/buildbots/llvm-external-buildbots/workers/ppc64le-clang-multistage-test/clang-ppc64le-multistage/llvm/llvm/include/llvm/MC/MCSectionGOFF.h:113:51: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses]
     assert(isED() || isPR() || isVirtualSection() && "Expect ED or PR section");
                                ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

```

</details>

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