[llvm] [llvm][dwarfdump] Add --child-tags option to filter by DWARF tags (PR #165720)

Tue Nov 4 03:48:16 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `amdgpu-offload-rhel-9-cmake-build-only` running on `rocm-docker-rhel-9` while building `llvm` at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/205/builds/26852

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

```
Step 4 (annotate) failure: '../llvm-zorg/zorg/buildbot/builders/annotated/amdgpu-offload-cmake.py --jobs=32' (failure)
...
[7782/8172] Building CXX object tools/llvm-extract/CMakeFiles/llvm-extract.dir/llvm-extract.cpp.o
[7783/8172] Building CXX object tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o
[7784/8172] Linking CXX shared library lib/libFIRAnalysis.so.22.0git
[7785/8172] Creating library symlink lib/libFIRAnalysis.so
[7786/8172] Linking CXX executable bin/llvm-extract
[7787/8172] Building CXX object tools/flang/lib/Optimizer/Transforms/CMakeFiles/FIRTransforms.dir/MIFOpConversion.cpp.o
[7788/8172] Building CXX object tools/llvm-gsymutil/CMakeFiles/llvm-gsymutil.dir/llvm-gsymutil-driver.cpp.o
[7789/8172] Building CXX object tools/dsymutil/CMakeFiles/dsymutil.dir/dsymutil.cpp.o
[7790/8172] Building Opts.inc...
[7791/8172] Linking CXX executable bin/llvm-dwarfdump
FAILED: bin/llvm-dwarfdump 
: && /usr/bin/c++ -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-array-bounds -Wno-stringop-overread -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,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/./lib  -Wl,--gc-sections tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/SectionSizes.cpp.o tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/Statistics.cpp.o tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o -o bin/llvm-dwarfdump  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/lib:"  lib/libLLVMAMDGPUDesc.so.22.0git  lib/libLLVMSPIRVDesc.so.22.0git  lib/libLLVMX86Desc.so.22.0git  lib/libLLVMAMDGPUInfo.so.22.0git  lib/libLLVMSPIRVInfo.so.22.0git  lib/libLLVMX86Info.so.22.0git  lib/libLLVMDebugInfoDWARF.so.22.0git  lib/libLLVMObject.so.22.0git  lib/libLLVMMC.so.22.0git  lib/libLLVMDebugInfoDWARFLowLevel.so.22.0git  lib/libLLVMTargetParser.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/lib && :
/usr/bin/ld: tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o: undefined reference to symbol '_ZN4llvm5dwarf6getTagENS_9StringRefE'
/usr/bin/ld: /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/./lib/libLLVMBinaryFormat.so.22.0git: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[7792/8172] Building CXX object tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/llvm-isel-fuzzer.cpp.o
[7793/8172] Building CXX object tools/llvm-ir2vec/CMakeFiles/llvm-ir2vec.dir/llvm-ir2vec.cpp.o
[7794/8172] Building CXX object tools/llvm-ifs/CMakeFiles/llvm-ifs.dir/ErrorCollector.cpp.o
[7795/8172] Linking CXX shared library lib/libFIRCodeGen.so.22.0git
[7796/8172] Linking CXX executable bin/fir-lsp-server
[7797/8172] Building CXX object tools/dsymutil/CMakeFiles/dsymutil.dir/DwarfLinkerForBinary.cpp.o
[7798/8172] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/DebugInfoLinker.cpp.o
[7799/8172] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/llvm-dwarfutil.cpp.o
[7800/8172] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/cmake_pch.hxx.gch
[7801/8172] Building CXX object tools/llvm-gsymutil/CMakeFiles/llvm-gsymutil.dir/llvm-gsymutil.cpp.o
[7802/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/BenchmarkResult.cpp.o
[7803/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/LatencyBenchmarkRunner.cpp.o
[7804/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/BenchmarkRunner.cpp.o
[7805/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/ParallelSnippetGenerator.cpp.o
[7806/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/semantics.cpp.o
[7807/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o
[7808/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/LlvmState.cpp.o
[7809/8172] Building CXX object tools/flang/lib/Optimizer/OpenMP/CMakeFiles/FlangOpenMPTransforms.dir/DoConcurrentConversion.cpp.o
[7810/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/Assembler.cpp.o
[7811/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetGenerator.cpp.o
[7812/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetFile.cpp.o
[7813/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/UopsBenchmarkRunner.cpp.o
[7814/8172] Building CXX object tools/llvm-exegesis/CMakeFiles/llvm-exegesis.dir/llvm-exegesis.cpp.o
[7815/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/Target.cpp.o
[7816/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetRepetitor.cpp.o
[7817/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/expression.cpp.o
[7818/8172] Building CXX object tools/llvm-exegesis/lib/X86/CMakeFiles/obj.LLVMExegesisX86.dir/Target.cpp.o
[7819/8172] Building CXX object tools/flang/tools/fir-opt/CMakeFiles/fir-opt.dir/fir-opt.cpp.o
[7820/8172] Building CXX object tools/flang/tools/tco/CMakeFiles/tco.dir/tco.cpp.o
[7821/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-atomic.cpp.o
[7822/8172] Building CXX object tools/flang/lib/Optimizer/HLFIR/Transforms/CMakeFiles/HLFIRTransforms.dir/LowerHLFIRIntrinsics.cpp.o
[7823/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names.cpp.o
[7824/8172] Building CXX object tools/flang/tools/bbc/CMakeFiles/bbc.dir/bbc.cpp.o
ninja: build stopped: subcommand failed.
Step 7 (build cmake config) failure: build cmake config (failure)
...
[7782/8172] Building CXX object tools/llvm-extract/CMakeFiles/llvm-extract.dir/llvm-extract.cpp.o
[7783/8172] Building CXX object tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o
[7784/8172] Linking CXX shared library lib/libFIRAnalysis.so.22.0git
[7785/8172] Creating library symlink lib/libFIRAnalysis.so
[7786/8172] Linking CXX executable bin/llvm-extract
[7787/8172] Building CXX object tools/flang/lib/Optimizer/Transforms/CMakeFiles/FIRTransforms.dir/MIFOpConversion.cpp.o
[7788/8172] Building CXX object tools/llvm-gsymutil/CMakeFiles/llvm-gsymutil.dir/llvm-gsymutil-driver.cpp.o
[7789/8172] Building CXX object tools/dsymutil/CMakeFiles/dsymutil.dir/dsymutil.cpp.o
[7790/8172] Building Opts.inc...
[7791/8172] Linking CXX executable bin/llvm-dwarfdump
FAILED: bin/llvm-dwarfdump 
: && /usr/bin/c++ -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-array-bounds -Wno-stringop-overread -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,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/./lib  -Wl,--gc-sections tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/SectionSizes.cpp.o tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/Statistics.cpp.o tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o -o bin/llvm-dwarfdump  -Wl,-rpath,"\$ORIGIN/../lib:/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/lib:"  lib/libLLVMAMDGPUDesc.so.22.0git  lib/libLLVMSPIRVDesc.so.22.0git  lib/libLLVMX86Desc.so.22.0git  lib/libLLVMAMDGPUInfo.so.22.0git  lib/libLLVMSPIRVInfo.so.22.0git  lib/libLLVMX86Info.so.22.0git  lib/libLLVMDebugInfoDWARF.so.22.0git  lib/libLLVMObject.so.22.0git  lib/libLLVMMC.so.22.0git  lib/libLLVMDebugInfoDWARFLowLevel.so.22.0git  lib/libLLVMTargetParser.so.22.0git  lib/libLLVMSupport.so.22.0git  -Wl,-rpath-link,/home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/lib && :
/usr/bin/ld: tools/llvm-dwarfdump/CMakeFiles/llvm-dwarfdump.dir/llvm-dwarfdump.cpp.o: undefined reference to symbol '_ZN4llvm5dwarf6getTagENS_9StringRefE'
/usr/bin/ld: /home/botworker/bbot/amdgpu-offload-rhel-9-cmake-build-only/build/./lib/libLLVMBinaryFormat.so.22.0git: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
[7792/8172] Building CXX object tools/llvm-isel-fuzzer/CMakeFiles/llvm-isel-fuzzer.dir/llvm-isel-fuzzer.cpp.o
[7793/8172] Building CXX object tools/llvm-ir2vec/CMakeFiles/llvm-ir2vec.dir/llvm-ir2vec.cpp.o
[7794/8172] Building CXX object tools/llvm-ifs/CMakeFiles/llvm-ifs.dir/ErrorCollector.cpp.o
[7795/8172] Linking CXX shared library lib/libFIRCodeGen.so.22.0git
[7796/8172] Linking CXX executable bin/fir-lsp-server
[7797/8172] Building CXX object tools/dsymutil/CMakeFiles/dsymutil.dir/DwarfLinkerForBinary.cpp.o
[7798/8172] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/DebugInfoLinker.cpp.o
[7799/8172] Building CXX object tools/llvm-dwarfutil/CMakeFiles/llvm-dwarfutil.dir/llvm-dwarfutil.cpp.o
[7800/8172] Building CXX object tools/flang/lib/Frontend/CMakeFiles/flangFrontend.dir/cmake_pch.hxx.gch
[7801/8172] Building CXX object tools/llvm-gsymutil/CMakeFiles/llvm-gsymutil.dir/llvm-gsymutil.cpp.o
[7802/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/BenchmarkResult.cpp.o
[7803/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/LatencyBenchmarkRunner.cpp.o
[7804/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/BenchmarkRunner.cpp.o
[7805/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/ParallelSnippetGenerator.cpp.o
[7806/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/semantics.cpp.o
[7807/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SerialSnippetGenerator.cpp.o
[7808/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/LlvmState.cpp.o
[7809/8172] Building CXX object tools/flang/lib/Optimizer/OpenMP/CMakeFiles/FlangOpenMPTransforms.dir/DoConcurrentConversion.cpp.o
[7810/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/Assembler.cpp.o
[7811/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetGenerator.cpp.o
[7812/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetFile.cpp.o
[7813/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/UopsBenchmarkRunner.cpp.o
[7814/8172] Building CXX object tools/llvm-exegesis/CMakeFiles/llvm-exegesis.dir/llvm-exegesis.cpp.o
[7815/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/Target.cpp.o
[7816/8172] Building CXX object tools/llvm-exegesis/lib/CMakeFiles/obj.LLVMExegesis.dir/SnippetRepetitor.cpp.o
[7817/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/expression.cpp.o
[7818/8172] Building CXX object tools/llvm-exegesis/lib/X86/CMakeFiles/obj.LLVMExegesisX86.dir/Target.cpp.o
[7819/8172] Building CXX object tools/flang/tools/fir-opt/CMakeFiles/fir-opt.dir/fir-opt.cpp.o
[7820/8172] Building CXX object tools/flang/tools/tco/CMakeFiles/tco.dir/tco.cpp.o
[7821/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/check-omp-atomic.cpp.o
[7822/8172] Building CXX object tools/flang/lib/Optimizer/HLFIR/Transforms/CMakeFiles/HLFIRTransforms.dir/LowerHLFIRIntrinsics.cpp.o
[7823/8172] Building CXX object tools/flang/lib/Semantics/CMakeFiles/FortranSemantics.dir/resolve-names.cpp.o
[7824/8172] Building CXX object tools/flang/tools/bbc/CMakeFiles/bbc.dir/bbc.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/165720