mirror of
https://github.com/intel/llvm.git
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When doing a standalone build (i.e., building just LLDB against an existing LLVM/Clang installation), LLDB is currently unable to find any Clang resource directory that contains all the builtin headers we need to parse real source code. This causes several tests that actually parse source code on disk within the expression parser to fail (most notably nearly all the import-std-module tests). The reason why LLDB can't find the resource directory is that we search based on the path of the LLDB shared library path. We assumed that the Clang resource directory is in the same prefix and has the same relative path to the LLDB shared library (e.g., `../clang/10.0.0/include`). However for a standalone build where the existing Clang can be anywhere on the disk, so we can't just rely on the hardcoded relative paths to the LLDB shared library. It seems we can either solve this by copying the resource directory to the LLDB installation, symlinking it there or we pass the path to the Clang installation to the code that is trying to find the resource directory. When building the LLDB framework we currently copy the resource directory over to the framework folder (this is why the import-std-module are not failing on the Green Dragon standalone bot). This patch symlinks the resource directory of Clang into the LLDB build directory. The reason for that is simply that this is only needed when running LLDB from the build directory. Once LLDB and Clang/LLVM are installed the already existing logic can find the Clang resource directory by searching relative to the LLDB shared library. Reviewed By: kastiglione, JDevlieghere Differential Revision: https://reviews.llvm.org/D88581
224 lines
6.8 KiB
CMake
224 lines
6.8 KiB
CMake
if ( CMAKE_SYSTEM_NAME MATCHES "Windows" )
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add_definitions( -DEXPORT_LIBLLDB )
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endif()
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get_property(LLDB_ALL_PLUGINS GLOBAL PROPERTY LLDB_PLUGINS)
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if(LLDB_BUILD_FRAMEWORK)
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set(option_install_prefix INSTALL_PREFIX ${LLDB_FRAMEWORK_INSTALL_DIR})
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set(option_framework FRAMEWORK)
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endif()
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if(LLDB_ENABLE_PYTHON)
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get_target_property(python_bindings_dir swig_wrapper_python BINARY_DIR)
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set(lldb_python_wrapper ${python_bindings_dir}/LLDBWrapPython.cpp)
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endif()
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if(LLDB_ENABLE_LUA)
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get_target_property(lua_bindings_dir swig_wrapper_lua BINARY_DIR)
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set(lldb_lua_wrapper ${lua_bindings_dir}/LLDBWrapLua.cpp)
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endif()
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add_lldb_library(liblldb SHARED ${option_framework}
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SBAddress.cpp
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SBAttachInfo.cpp
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SBBlock.cpp
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SBBreakpoint.cpp
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SBBreakpointLocation.cpp
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SBBreakpointName.cpp
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SBBreakpointOptionCommon.cpp
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SBBroadcaster.cpp
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SBCommandInterpreter.cpp
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SBCommandInterpreterRunOptions.cpp
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SBCommandReturnObject.cpp
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SBCommunication.cpp
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SBCompileUnit.cpp
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SBData.cpp
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SBDebugger.cpp
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SBDeclaration.cpp
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SBEnvironment.cpp
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SBError.cpp
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SBEvent.cpp
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SBExecutionContext.cpp
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SBExpressionOptions.cpp
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SBFileSpec.cpp
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SBFile.cpp
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SBFileSpecList.cpp
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SBFrame.cpp
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SBFunction.cpp
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SBHostOS.cpp
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SBInstruction.cpp
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SBInstructionList.cpp
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SBLanguageRuntime.cpp
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SBLaunchInfo.cpp
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SBLineEntry.cpp
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SBListener.cpp
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SBMemoryRegionInfo.cpp
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SBMemoryRegionInfoList.cpp
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SBModule.cpp
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SBModuleSpec.cpp
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SBPlatform.cpp
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SBProcess.cpp
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SBProcessInfo.cpp
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SBQueue.cpp
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SBQueueItem.cpp
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SBReproducer.cpp
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SBSection.cpp
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SBSourceManager.cpp
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SBStream.cpp
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SBStringList.cpp
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SBStructuredData.cpp
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SBSymbol.cpp
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SBSymbolContext.cpp
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SBSymbolContextList.cpp
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SBTarget.cpp
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SBThread.cpp
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SBThreadCollection.cpp
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SBThreadPlan.cpp
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SBTrace.cpp
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SBTraceOptions.cpp
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SBType.cpp
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SBTypeCategory.cpp
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SBTypeEnumMember.cpp
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SBTypeFilter.cpp
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SBTypeFormat.cpp
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SBTypeNameSpecifier.cpp
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SBTypeSummary.cpp
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SBTypeSynthetic.cpp
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SBValue.cpp
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SBValueList.cpp
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SBVariablesOptions.cpp
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SBWatchpoint.cpp
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SBUnixSignals.cpp
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SystemInitializerFull.cpp
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${lldb_python_wrapper}
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${lldb_lua_wrapper}
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LINK_LIBS
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lldbBase
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lldbBreakpoint
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lldbCore
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lldbDataFormatters
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lldbExpression
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lldbHost
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lldbInitialization
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lldbInterpreter
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lldbSymbol
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lldbTarget
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lldbUtility
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${LLDB_ALL_PLUGINS}
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LINK_COMPONENTS
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Support
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${option_install_prefix}
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)
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# lib/pythonX.Y/dist-packages/lldb/_lldb.so is a symlink to lib/liblldb.so,
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# which depends on lib/libLLVM*.so (BUILD_SHARED_LIBS) or lib/libLLVM-10git.so
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# (LLVM_LINK_LLVM_DYLIB). Add an additional rpath $ORIGIN/../../../../lib so
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# that _lldb.so can be loaded from Python.
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if(LLDB_ENABLE_PYTHON AND (BUILD_SHARED_LIBS OR LLVM_LINK_LLVM_DYLIB) AND UNIX AND NOT APPLE)
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set_property(TARGET liblldb APPEND PROPERTY INSTALL_RPATH "\$ORIGIN/../../../../lib${LLVM_LIBDIR_SUFFIX}")
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endif()
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if(Python3_RPATH)
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set_property(TARGET liblldb APPEND PROPERTY INSTALL_RPATH "${Python3_RPATH}")
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set_property(TARGET liblldb APPEND PROPERTY BUILD_RPATH "${Python3_RPATH}")
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endif()
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if(LLDB_ENABLE_PYTHON)
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add_dependencies(liblldb swig_wrapper_python)
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if (MSVC)
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set_property(SOURCE ${lldb_python_wrapper} APPEND_STRING PROPERTY COMPILE_FLAGS " /W0")
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else()
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set_property(SOURCE ${lldb_python_wrapper} APPEND_STRING PROPERTY COMPILE_FLAGS " -w")
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endif()
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set_source_files_properties(${lldb_python_wrapper} PROPERTIES GENERATED ON)
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if (CLANG_CL)
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set_property(SOURCE ${lldb_python_wrapper} APPEND_STRING
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PROPERTY COMPILE_FLAGS " -Wno-unused-function")
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endif()
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if (LLVM_COMPILER_IS_GCC_COMPATIBLE AND
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NOT "${CMAKE_SYSTEM_NAME}" MATCHES "Darwin")
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set_property(SOURCE ${lldb_python_wrapper} APPEND_STRING
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PROPERTY COMPILE_FLAGS " -Wno-sequence-point -Wno-cast-qual")
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endif ()
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endif()
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if(LLDB_ENABLE_LUA)
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add_dependencies(liblldb swig_wrapper_lua)
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target_include_directories(liblldb PRIVATE ${LUA_INCLUDE_DIR})
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if (MSVC)
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set_property(SOURCE ${lldb_lua_wrapper} APPEND_STRING PROPERTY COMPILE_FLAGS " /W0")
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else()
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set_property(SOURCE ${lldb_lua_wrapper} APPEND_STRING PROPERTY COMPILE_FLAGS " -w")
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endif()
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set_source_files_properties(${lldb_lua_wrapper} PROPERTIES GENERATED ON)
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endif()
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set_target_properties(liblldb
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PROPERTIES
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VERSION ${LLDB_VERSION}
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)
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if (NOT CMAKE_SYSTEM_NAME MATCHES "Windows")
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if (NOT LLDB_EXPORT_ALL_SYMBOLS)
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# If we're not exporting all symbols, we'll want to explicitly set
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# the exported symbols here. This prevents 'log enable --stack ...'
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# from working on some systems but limits the liblldb size.
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MESSAGE("-- Symbols (liblldb): exporting all symbols from the lldb namespace")
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add_llvm_symbol_exports(liblldb ${CMAKE_CURRENT_SOURCE_DIR}/liblldb.exports)
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else()
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# Don't use an explicit export. Instead, tell the linker to
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# export all symbols.
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MESSAGE("-- Symbols (liblldb): exporting all symbols from the lldb and lldb_private namespaces")
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add_llvm_symbol_exports(liblldb ${CMAKE_CURRENT_SOURCE_DIR}/liblldb-private.exports)
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endif()
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set_target_properties(liblldb_exports PROPERTIES FOLDER "lldb misc")
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endif()
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if (MSVC)
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# Only MSVC has the ABI compatibility problem and avoids using FindPythonLibs,
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# so only it needs to explicitly link against ${Python3_LIBRARIES}
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if (LLDB_ENABLE_PYTHON)
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target_link_libraries(liblldb PRIVATE ${Python3_LIBRARIES})
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endif()
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else()
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set_target_properties(liblldb
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PROPERTIES
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OUTPUT_NAME lldb
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)
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endif()
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# The Clang expression parser in LLDB requires the Clang resource directory to function.
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if (TARGET clang-resource-headers)
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# If building alongside Clang, just add a dependency to ensure it is build together with liblldb.
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add_dependencies(liblldb clang-resource-headers)
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else()
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# In a standalone build create a symlink from the LLDB library directory that points to the
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# resource directory in the Clang library directory. LLDB searches relative to its install path,
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# and the symlink is created in the same relative path as the resource directory of Clang when
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# building alongside Clang.
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# When building the LLDB framework, this isn't necessary as there we copy everything we need into
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# the framework (including the Clang resourece directory).
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if(NOT LLDB_BUILD_FRAMEWORK)
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set(LLDB_CLANG_RESOURCE_DIR_PARENT "$<TARGET_FILE_DIR:liblldb>/clang")
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file(MAKE_DIRECTORY "${LLDB_CLANG_RESOURCE_DIR_PARENT}")
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add_custom_command(TARGET liblldb POST_BUILD
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COMMENT "Linking Clang resource dir into LLDB build directory: ${LLDB_CLANG_RESOURCE_DIR_PARENT}"
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COMMAND ${CMAKE_COMMAND} -E make_directory "${LLDB_CLANG_RESOURCE_DIR_PARENT}"
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COMMAND ${CMAKE_COMMAND} -E create_symlink "${LLDB_EXTERNAL_CLANG_RESOURCE_DIR}"
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"${LLDB_CLANG_RESOURCE_DIR_PARENT}/${LLDB_CLANG_RESOURCE_DIR_NAME}"
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)
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endif()
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endif()
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if(LLDB_BUILD_FRAMEWORK)
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include(LLDBFramework)
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endif()
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