Merge commit '1c630cb2fbc0' from apple/stable/20200714 into swift/main

 Conflicts:
	lldb/cmake/modules/FindPythonInterpAndLibs.cmake
	lldb/test/Shell/lit.site.cfg.py.in

Author: JDevlieghere

lldb/CMakeLists.txt

@@ -61,7 +61,7 @@ endif()
 
 if (LLDB_ENABLE_PYTHON)
   execute_process(
-    COMMAND ${PYTHON_EXECUTABLE}
+    COMMAND ${Python3_EXECUTABLE}
         -c "import distutils.sysconfig; print(distutils.sysconfig.get_python_lib(True, False, ''))"
     OUTPUT_VARIABLE LLDB_PYTHON_DEFAULT_RELATIVE_PATH
     OUTPUT_STRIP_TRAILING_WHITESPACE)

lldb/bindings/python/CMakeLists.txt

@@ -26,7 +26,7 @@ function(create_python_package swig_target working_dir pkg_dir)
     set(copy_cmd COMMAND ${CMAKE_COMMAND} -E copy ${ARG_FILES} ${pkg_dir})
   endif()
   if(NOT ARG_NOINIT)
-    set(init_cmd COMMAND ${PYTHON_EXECUTABLE}
+    set(init_cmd COMMAND ${Python3_EXECUTABLE}
         "${LLDB_SOURCE_DIR}/bindings/python/createPythonInit.py"
         "${pkg_dir}" ${ARG_FILES})
   endif()

lldb/cmake/modules/FindPythonAndSwig.cmake

@@ -0,0 +1,57 @@
+#.rst:
+# FindPythonAndSwig
+# -----------
+#
+# Find the python interpreter and libraries as a whole.
+
+macro(FindPython3)
+  # Use PYTHON_HOME as a hint to find Python 3.
+  set(Python3_ROOT_DIR "${PYTHON_HOME}")
+  find_package(Python3 COMPONENTS Interpreter Development)
+  if(Python3_FOUND AND Python3_Interpreter_FOUND)
+
+    # The install name for the Python 3 framework in Xcode is relative to
+    # the framework's location and not the dylib itself.
+    #
+    #   @rpath/Python3.framework/Versions/3.x/Python3
+    #
+    # This means that we need to compute the path to the Python3.framework
+    # and use that as the RPATH instead of the usual dylib's directory.
+    #
+    # The check below shouldn't match Homebrew's Python framework as it is
+    # called Python.framework instead of Python3.framework.
+    if (APPLE AND Python3_LIBRARIES MATCHES "Python3.framework")
+      string(FIND "${Python3_LIBRARIES}" "Python3.framework" python_framework_pos)
+      string(SUBSTRING "${Python3_LIBRARIES}" "0" ${python_framework_pos} Python3_RPATH)
+    endif()
+
+    set(PYTHON3_FOUND TRUE)
+    mark_as_advanced(
+      Python3_LIBRARIES
+      Python3_INCLUDE_DIRS
+      Python3_EXECUTABLE
+      Python3_RPATH
+      SWIG_EXECUTABLE)
+  endif()
+endmacro()
+
+if(Python3_LIBRARIES AND Python3_INCLUDE_DIRS AND Python3_EXECUTABLE AND SWIG_EXECUTABLE)
+  set(PYTHONANDSWIG_FOUND TRUE)
+else()
+  find_package(SWIG 2.0)
+  if (SWIG_FOUND)
+      FindPython3()
+  else()
+    message(STATUS "SWIG 2 or later is required for Python support in LLDB but could not be found")
+  endif()
+
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(PythonAndSwig
+                                    FOUND_VAR
+                                      PYTHONANDSWIG_FOUND
+                                    REQUIRED_VARS
+                                      Python3_LIBRARIES
+                                      Python3_INCLUDE_DIRS
+                                      Python3_EXECUTABLE
+                                      SWIG_EXECUTABLE)
+endif()

lldb/cmake/modules/FindPythonInterpAndLibs.cmake

@@ -56,7 +56,7 @@ add_optional_dependency(LLDB_ENABLE_LIBEDIT "Enable editline support in LLDB" Li
 add_optional_dependency(LLDB_ENABLE_CURSES "Enable curses support in LLDB" CursesAndPanel CURSESANDPANEL_FOUND)
 add_optional_dependency(LLDB_ENABLE_LZMA "Enable LZMA compression support in LLDB" LibLZMA LIBLZMA_FOUND)
 add_optional_dependency(LLDB_ENABLE_LUA "Enable Lua scripting support in LLDB" LuaAndSwig LUAANDSWIG_FOUND)
-add_optional_dependency(LLDB_ENABLE_PYTHON "Enable Python scripting support in LLDB" PythonInterpAndLibs PYTHONINTERPANDLIBS_FOUND)
+add_optional_dependency(LLDB_ENABLE_PYTHON "Enable Python scripting support in LLDB" PythonAndSwig PYTHONANDSWIG_FOUND)
 add_optional_dependency(LLDB_ENABLE_LIBXML2 "Enable Libxml 2 support in LLDB" LibXml2 LIBXML2_FOUND VERSION 2.8)
 
 option(LLDB_USE_SYSTEM_SIX "Use six.py shipped with system and do not install a copy of it" OFF)
@@ -88,11 +88,6 @@ if(LLDB_BUILD_FRAMEWORK)
   if(NOT APPLE)
     message(FATAL_ERROR "LLDB.framework can only be generated when targeting Apple platforms")
   endif()
-  # CMake 3.6 did not correctly emit POST_BUILD commands for Apple Framework targets
-  # CMake < 3.8 did not have the BUILD_RPATH target property
-  if(CMAKE_VERSION VERSION_LESS 3.8)
-    message(FATAL_ERROR "LLDB_BUILD_FRAMEWORK is not supported on CMake < 3.8")
-  endif()
 
   set(LLDB_FRAMEWORK_VERSION A CACHE STRING "LLDB.framework version (default is A)")
   set(LLDB_FRAMEWORK_BUILD_DIR bin CACHE STRING "Output directory for LLDB.framework")
@@ -158,9 +153,9 @@ if (LLDB_ENABLE_PYTHON)
     "Embed PYTHONHOME in the binary. If set to OFF, PYTHONHOME environment variable will be used to to locate Python."
     ${default_embed_python_home})
 
-  include_directories(${PYTHON_INCLUDE_DIRS})
+  include_directories(${Python3_INCLUDE_DIRS})
   if (LLDB_EMBED_PYTHON_HOME)
-    get_filename_component(PYTHON_HOME "${PYTHON_EXECUTABLE}" DIRECTORY)
+    get_filename_component(PYTHON_HOME "${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()

lldb/cmake/modules/LLDBConfig.cmake

@@ -134,9 +134,9 @@ if(LLDB_ENABLE_PYTHON AND (BUILD_SHARED_LIBS OR LLVM_LINK_LLVM_DYLIB) AND UNIX A
   set_property(TARGET liblldb APPEND PROPERTY INSTALL_RPATH "\$ORIGIN/../../../../lib${LLVM_LIBDIR_SUFFIX}")
 endif()
 
-if(PYTHON_RPATH)
-  set_property(TARGET liblldb APPEND PROPERTY INSTALL_RPATH "${PYTHON_RPATH}")
-  set_property(TARGET liblldb APPEND PROPERTY BUILD_RPATH   "${PYTHON_RPATH}")
+if(Python3_RPATH)
+  set_property(TARGET liblldb APPEND PROPERTY INSTALL_RPATH "${Python3_RPATH}")
+  set_property(TARGET liblldb APPEND PROPERTY BUILD_RPATH   "${Python3_RPATH}")
 endif()
 
 if (MSVC)
@@ -200,9 +200,9 @@ endif()
 
 if ( CMAKE_SYSTEM_NAME MATCHES "Windows" )
   # Only MSVC has the ABI compatibility problem and avoids using FindPythonLibs,
-  # so only it needs to explicitly link against ${PYTHON_LIBRARIES}
+  # so only it needs to explicitly link against ${Python3_LIBRARIES}
   if (MSVC AND LLDB_ENABLE_PYTHON)
-    target_link_libraries(liblldb PRIVATE ${PYTHON_LIBRARIES})
+    target_link_libraries(liblldb PRIVATE ${Python3_LIBRARIES})
   endif()
 else()
   set_target_properties(liblldb

lldb/source/API/CMakeLists.txt

@@ -3,4 +3,4 @@ add_subdirectory(ELF)
 add_subdirectory(Mach-O)
 add_subdirectory(PECOFF)
 add_subdirectory(JIT)
-add_subdirectory(wasm)
+add_subdirectory(wasm)

lldb/source/Plugins/ObjectFile/CMakeLists.txt

@@ -4,4 +4,4 @@ add_lldb_library(lldbPluginScriptInterpreterNone PLUGIN
   LINK_LIBS
     lldbCore
     lldbInterpreter
-  )
+  )

lldb/source/Plugins/ScriptInterpreter/None/CMakeLists.txt

@@ -19,7 +19,7 @@ add_lldb_library(lldbPluginScriptInterpreterPython PLUGIN
     lldbHost
     lldbInterpreter
     lldbTarget
-    ${PYTHON_LIBRARIES}
+    ${Python3_LIBRARIES}
     ${LLDB_LIBEDIT_LIBS}
 
   LINK_COMPONENTS

lldb/source/Plugins/ScriptInterpreter/Python/CMakeLists.txt

@@ -1,6 +1,6 @@
 function(add_python_test_target name test_script args comment)
   set(PYTHON_TEST_COMMAND
-    ${PYTHON_EXECUTABLE}
+    ${Python3_EXECUTABLE}
     ${test_script}
     ${args}
     )