[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 `sanitizer-aarch64-linux` running on `sanitizer-buildbot7` while building `bolt,lldb,llvm,utils` at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/51/builds/18671

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

```
Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure)
...
+ grep -E '^\+[^+]'
+_ZN4llvm15DWARFExpression9Operation7extractENS_13DataExtractorEhmNSt20__InternalSymbolizer8optionalINS_5dwarf11DwarfFormatEEE U
+_ZN4llvm5dwarf10CFIProgram15getOperandTypesEv U
+_ZNK4llvm5dwarf10CFIProgram11Instruction18getOperandAsSignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram11Instruction20getOperandAsUnsignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram15callFrameStringEj U
+ echo 'Failed: unexpected symbols'
Failed: unexpected symbols
+ exit 1
[2600/2660] Building CXX object compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.aarch64.dir/asan_interceptors.cpp.o
FAILED: compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64 && FLAGS=-march=armv8-a CLANG=/home/b/sanitizer-aarch64-linux/build/build_default/./bin/clang /home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o
ninja: build stopped: subcommand failed.
FAILED: runtimes/runtimes-stamps/runtimes-build /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-stamps/runtimes-build 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins && /usr/bin/cmake --build .
ninja: build stopped: subcommand failed.

How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild


@@@STEP_FAILURE@@@

@@@STEP_FAILURE@@@

@@@STEP_FAILURE@@@
@@@BUILD_STEP test compiler-rt symbolizer@@@
ninja: Entering directory `build_default'
[0/5] Performing build step for 'builtins'
ninja: no work to do.
[1/5] No install step for 'builtins'
[3/5] Completed 'builtins'
[3/5] Performing configure step for 'runtimes'
Not searching for unused variables given on the command line.
loading initial cache file /home/b/sanitizer-aarch64-linux/build/build_default/projects/runtimes/tmp/runtimes-cache-Release.cmake
-- Performing bootstrapping runtimes build.
-- Building with -fPIC
-- LLVM host triple: aarch64-unknown-linux-gnu
-- LLVM default target triple: aarch64-unknown-linux-gnu
-- Using libunwind testing configuration: /home/b/sanitizer-aarch64-linux/build/llvm-project/libunwind/test/configs/llvm-libunwind-shared.cfg.in
-- Failed to locate sphinx-build executable (missing: SPHINX_EXECUTABLE) 
-- Using libc++abi testing configuration: /home/b/sanitizer-aarch64-linux/build/llvm-project/libcxxabi/test/configs/llvm-libc++abi-shared.cfg.in
-- Using libc++ testing configuration: /home/b/sanitizer-aarch64-linux/build/llvm-project/libcxx/test/configs/llvm-libc++-shared.cfg.in
-- Clang-tidy tests are disabled since the Clang development package has no clangTidy target.
-- ABI list file not generated for configuration aarch64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew, `check-cxx-abilist` will not be available.
-- Compiler-RT supported architectures: aarch64
-- Generated Sanitizer SUPPORTED_TOOLS list on "Linux" is "asan;lsan;hwasan;msan;tsan;ubsan"
-- sanitizer_common tests on "Linux" will run against "asan;lsan;hwasan;msan;tsan;ubsan"
-- Configuring done (1.2s)
-- Generating done (0.1s)
Step 8 (build compiler-rt symbolizer) failure: build compiler-rt symbolizer (failure)
...
+ grep -E '^\+[^+]'
+_ZN4llvm15DWARFExpression9Operation7extractENS_13DataExtractorEhmNSt20__InternalSymbolizer8optionalINS_5dwarf11DwarfFormatEEE U
+_ZN4llvm5dwarf10CFIProgram15getOperandTypesEv U
+_ZNK4llvm5dwarf10CFIProgram11Instruction18getOperandAsSignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram11Instruction20getOperandAsUnsignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram15callFrameStringEj U
+ echo 'Failed: unexpected symbols'
Failed: unexpected symbols
+ exit 1
[2600/2660] Building CXX object compiler-rt/lib/asan/CMakeFiles/RTAsan_dynamic.aarch64.dir/asan_interceptors.cpp.o
FAILED: compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64 && FLAGS=-march=armv8-a CLANG=/home/b/sanitizer-aarch64-linux/build/build_default/./bin/clang /home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o
ninja: build stopped: subcommand failed.
FAILED: runtimes/runtimes-stamps/runtimes-build /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-stamps/runtimes-build 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins && /usr/bin/cmake --build .
ninja: build stopped: subcommand failed.

How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild




Step 9 (test compiler-rt symbolizer) failure: test compiler-rt symbolizer (failure)
...
+ grep -E '^\+[^+]'
+_ZN4llvm15DWARFExpression9Operation7extractENS_13DataExtractorEhmNSt20__InternalSymbolizer8optionalINS_5dwarf11DwarfFormatEEE U
+_ZN4llvm5dwarf10CFIProgram15getOperandTypesEv U
+_ZNK4llvm5dwarf10CFIProgram11Instruction18getOperandAsSignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram11Instruction20getOperandAsUnsignedERKS1_j U
+_ZNK4llvm5dwarf10CFIProgram15callFrameStringEj U
+ echo 'Failed: unexpected symbols'
+ exit 1
Failed: unexpected symbols
[54/225] Generating Rtsan-aarch64-FileOffset64-Test
FAILED: compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64 && FLAGS=-march=armv8-a CLANG=/home/b/sanitizer-aarch64-linux/build/build_default/./bin/clang /home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/compiler-rt/lib/sanitizer_common/symbolizer/RTSanitizerCommonSymbolizerInternal.aarch64.o
ninja: build stopped: subcommand failed.
FAILED: runtimes/CMakeFiles/check-compiler-rt /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/CMakeFiles/check-compiler-rt 
cd /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins && /usr/bin/cmake --build /home/b/sanitizer-aarch64-linux/build/build_default/runtimes/runtimes-bins/ --target check-compiler-rt --config Release
ninja: build stopped: subcommand failed.

How to reproduce locally: https://github.com/google/sanitizers/wiki/SanitizerBotReproduceBuild





```

</details>

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