[Lldb-commits] [lldb] [lldb] Fix self-deadlock from frame identity aliasing in scripted frame providers (PR #208992)

[via lldb-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

The build failed before running any tests. Click on a failure below to see the details.

<details>
<summary>tools/lldb/tools/lldb-dap/CMakeFiles/obj.lldbDAP.dir/ProtocolUtils.cpp.o</summary>

```
FAILED: tools/lldb/tools/lldb-dap/CMakeFiles/obj.lldbDAP.dir/ProtocolUtils.cpp.o
sccache /opt/llvm/bin/clang++ -DHAVE_ROUND -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/lldb/tools/lldb-dap -I/home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/tools/lldb-dap -I/home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/lldb/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/../clang/include -I/home/gha/actions-runner/_work/llvm-project/llvm-project/build/tools/lldb/../clang/include -gmlt -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wno-pass-failed -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -ffunction-sections -fdata-sections -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-vla-extension -O3 -DNDEBUG -std=c++17 -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -MD -MT tools/lldb/tools/lldb-dap/CMakeFiles/obj.lldbDAP.dir/ProtocolUtils.cpp.o -MF tools/lldb/tools/lldb-dap/CMakeFiles/obj.lldbDAP.dir/ProtocolUtils.cpp.o.d -o tools/lldb/tools/lldb-dap/CMakeFiles/obj.lldbDAP.dir/ProtocolUtils.cpp.o -c /home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/tools/lldb-dap/ProtocolUtils.cpp
/home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/tools/lldb-dap/ProtocolUtils.cpp:221:8: error: no member named 'lock_guard' in namespace 'std'
221 |   std::lock_guard<lldb::SBMutex> guard(lock);
|        ^~~~~~~~~~
/home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/tools/lldb-dap/ProtocolUtils.cpp:221:32: error: expected '(' for function-style cast or type construction
221 |   std::lock_guard<lldb::SBMutex> guard(lock);
|                   ~~~~~~~~~~~~~^
/home/gha/actions-runner/_work/llvm-project/llvm-project/lldb/tools/lldb-dap/ProtocolUtils.cpp:221:34: error: use of undeclared identifier 'guard'
221 |   std::lock_guard<lldb::SBMutex> guard(lock);
|                                  ^~~~~
3 errors generated.
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/208992