[Lldb-commits] [lldb] [lldb-dap] Validate utf8 protocol messages. (PR #181261)

LLVM Continuous Integration via lldb-commits lldb-commits at lists.llvm.org
Tue Feb 17 14:11:10 PST 2026 

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `cross-project-tests-sie-ubuntu-dwarf5` running on `doug-worker-1b` while building `lldb` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/163/builds/34737

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

```
Step 5 (build-unified-tree) failure: build (failure)
...
152.657 [378/8/5194] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/SourceBreakpoint.cpp.o
153.934 [377/8/5195] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Variables.cpp.o
154.152 [376/8/5196] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/DAP.cpp.o
154.247 [375/8/5197] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Watchpoint.cpp.o
157.928 [374/8/5198] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/AttachRequestHandler.cpp.o
157.933 [373/8/5199] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/CancelRequestHandler.cpp.o
158.428 [372/8/5200] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/CompileUnitsRequestHandler.cpp.o
158.575 [371/8/5201] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/BreakpointLocationsRequestHandler.cpp.o
160.070 [370/8/5202] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/CompletionsRequestHandler.cpp.o
160.268 [369/8/5203] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DataBreakpointInfoRequestHandler.cpp.o
FAILED: tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DataBreakpointInfoRequestHandler.cpp.o 
/opt/ccache/bin/g++ -DHAVE_ROUND -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GLIBCXX_USE_CXX11_ABI=1 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/tools/lldb/tools/lldb-dap -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/include -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/tools/lldb/include -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/include -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/include -I/usr/include/python3.10 -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/llvm/../clang/include -I/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/build/tools/lldb/../clang/include -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 -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-stringop-truncation -O3 -DNDEBUG -UNDEBUG -fno-exceptions -funwind-tables -fno-rtti -std=c++17 -MD -MT tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DataBreakpointInfoRequestHandler.cpp.o -MF tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DataBreakpointInfoRequestHandler.cpp.o.d -o tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DataBreakpointInfoRequestHandler.cpp.o -c /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp: In member function ‘virtual llvm::Expected<lldb_dap::protocol::DataBreakpointInfoResponseBody> lldb_dap::DataBreakpointInfoRequestHandler::Run(const lldb_dap::protocol::DataBreakpointInfoArguments&) const’:
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp:97:46: error: invalid user-defined conversion from ‘const lldb_dap::protocol::String’ to ‘const string&’ {aka ‘const std::__cxx11::basic_string<char>&’} [-fpermissive]
   97 |       return llvm::make_error<DAPError>(args.name + " is not a valid address",
      |                                         ~~~~~^~~~
In file included from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/DAPTypes.h:19,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolTypes.h:23,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/ExceptionBreakpoint.h:13,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/DAP.h:14,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp:9:
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolBase.h:66:3: note: candidate is: ‘lldb_dap::protocol::String::operator std::string&()’ (near match)
   66 |   operator std::string &() { return m_str; }
      |   ^~~~~~~~
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolBase.h:66:3: note:   passing ‘const lldb_dap::protocol::String*’ as ‘this’ argument discards qualifiers
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp:97:53: error: passing ‘const lldb_dap::protocol::String’ as ‘this’ argument discards qualifiers [-fpermissive]
   97 |       return llvm::make_error<DAPError>(args.name + " is not a valid address",
      |                                                     ^~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/DAPTypes.h:19,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolTypes.h:23,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/ExceptionBreakpoint.h:13,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/DAP.h:14,
                 from /home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Handler/DataBreakpointInfoRequestHandler.cpp:9:
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolBase.h:66:3: note:   in call to ‘lldb_dap::protocol::String::operator std::string&()’
   66 |   operator std::string &() { return m_str; }
      |   ^~~~~~~~
/home/buildbot/buildbot-root/cross-project-tests-sie-ubuntu-dwarf5/llvm-project/lldb/tools/lldb-dap/Protocol/ProtocolBase.h:122:44: note:   initializing argument 1 of ‘lldb_dap::protocol::String lldb_dap::protocol::operator+(const string&, const lldb_dap::protocol::String&)’
  122 | inline String operator+(const std::string &LHS, const String &RHS) {
      |                         ~~~~~~~~~~~~~~~~~~~^~~
160.793 [369/7/5204] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/ConfigurationDoneRequestHandler.cpp.o
160.915 [369/6/5205] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/ContinueRequestHandler.cpp.o
163.905 [369/5/5206] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/EvaluateRequestHandler.cpp.o
164.221 [369/4/5207] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DisconnectRequestHandler.cpp.o
164.418 [369/3/5208] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/InitializeRequestHandler.cpp.o
164.957 [369/2/5209] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/ExceptionInfoRequestHandler.cpp.o
165.700 [369/1/5210] Building CXX object tools/lldb/tools/lldb-dap/CMakeFiles/lldbDAP.dir/Handler/DisassembleRequestHandler.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/181261

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