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[lldb] Use the Python limited API with SWIG 4.2 or later (#153119) #153472

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Merged
JDevlieghere merged 1 commit into from
Aug 14, 2025
Merged

[lldb] Use the Python limited API with SWIG 4.2 or later (#153119) #153472

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10 changes: 9 additions & 1 deletion lldb/cmake/modules/LLDBConfig.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -68,7 +68,6 @@ add_optional_dependency(LLDB_ENABLE_FBSDVMCORE "Enable libfbsdvmcore support in
option(LLDB_USE_ENTITLEMENTS "When codesigning, use entitlements if available" ON)
option(LLDB_BUILD_FRAMEWORK "Build LLDB.framework (Darwin only)" OFF)
option(LLDB_ENABLE_PROTOCOL_SERVERS "Enable protocol servers (e.g. MCP) in LLDB" ON)
option(LLDB_ENABLE_PYTHON_LIMITED_API "Force LLDB to only use the Python Limited API (requires SWIG 4.2 or later)" OFF)
option(LLDB_NO_INSTALL_DEFAULT_RPATH "Disable default RPATH settings in binaries" OFF)
option(LLDB_USE_SYSTEM_DEBUGSERVER "Use the system's debugserver for testing (Darwin only)." OFF)
option(LLDB_SKIP_STRIP "Whether to skip stripping of binaries when installing lldb." OFF)
Expand Down Expand Up @@ -174,11 +173,20 @@ if (LLDB_ENABLE_PYTHON)
${default_embed_python_home})

include_directories(${Python3_INCLUDE_DIRS})

if (LLDB_EMBED_PYTHON_HOME)
get_filename_component(PYTHON_HOME "${Python3_EXECUTABLE}" DIRECTORY)
set(LLDB_PYTHON_HOME "${PYTHON_HOME}" CACHE STRING
"Path to use as PYTHONHOME in lldb. If a relative path is specified, it will be resolved at runtime relative to liblldb directory.")
endif()

if (SWIG_VERSION VERSION_GREATER_EQUAL "4.2" AND NOT LLDB_EMBED_PYTHON_HOME)
set(default_enable_python_limited_api ON)
else()
set(default_enable_python_limited_api OFF)
endif()
option(LLDB_ENABLE_PYTHON_LIMITED_API "Force LLDB to only use the Python Limited API (requires SWIG 4.2 or later)"
${default_enable_python_limited_api})
endif()

if (LLVM_EXTERNAL_CLANG_SOURCE_DIR)
Expand Down
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