[Lldb-commits] [lldb] b3757f3 - [lldb/CMake] Autodetect Python dependency

Davidino Italiano via lldb-commits lldb-commits at lists.llvm.org
Mon Jan 6 10:17:23 PST 2020



> On Jan 6, 2020, at 9:07 AM, Jonas Devlieghere via lldb-commits <lldb-commits at lists.llvm.org> wrote:
> 
> 
> Author: Jonas Devlieghere
> Date: 2020-01-06T09:05:05-08:00
> New Revision: b3757f3091d1c718a91f5b06b7364b2af28339fa
> 
> URL: https://github.com/llvm/llvm-project/commit/b3757f3091d1c718a91f5b06b7364b2af28339fa
> DIFF: https://github.com/llvm/llvm-project/commit/b3757f3091d1c718a91f5b06b7364b2af28339fa.diff
> 
> LOG: [lldb/CMake] Autodetect Python dependency
> 
> Python was the last remaining "optional" dependency for LLDB. This moves
> the code to find Python into FindPythonInterpAndLibs using the same
> principles as FindCursesAndPanel.
> 
> Differential revision: https://reviews.llvm.org/D72107
> 
> Added: 
>    lldb/cmake/modules/FindPythonInterpAndLibs.cmake
>    lldb/lldb/cmake/modules/FindPythonInterpAndLibs.cmake
> 
> Modified: 
>    lldb/cmake/modules/LLDBConfig.cmake
> 
> Removed: 
> 
> 
> 
> ################################################################################
> diff  --git a/lldb/cmake/modules/FindPythonInterpAndLibs.cmake b/lldb/cmake/modules/FindPythonInterpAndLibs.cmake
> new file mode 100644
> index 000000000000..fcbf0212d72b
> --- /dev/null
> +++ b/lldb/cmake/modules/FindPythonInterpAndLibs.cmake
> @@ -0,0 +1,51 @@
> +#.rst:
> +# FindPythonInterpAndLibs
> +# -----------
> +#
> +# Find the python interpreter and libraries as a whole.
> +
> +if(PYTHON_LIBRARIES AND PYTHON_INCLUDE_DIRS AND PYTHON_EXECUTABLE)
> +  set(PYTHONINTERPANDLIBS_FOUND TRUE)
> +else()
> +  if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
> +    find_package(Python3 COMPONENTS Interpreter Development QUIET)
> +    if (Python3_FOUND AND Python3_Interpreter_FOUND)
> +      set(PYTHON_LIBRARIES ${Python3_LIBRARIES})
> +      set(PYTHON_INCLUDE_DIRS ${Python3_INCLUDE_DIRS})
> +      set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
> +      mark_as_advanced(
> +        PYTHON_LIBRARIES
> +        PYTHON_INCLUDE_DIRS
> +        PYTHON_EXECUTABLE)
> +    endif()
> +  else()
> +    find_package(PythonInterp QUIET)
> +    find_package(PythonLibs QUIET)
> +    if(PYTHONINTERP_FOUND AND PYTHONLIBS_FOUND)
> +      if (NOT CMAKE_CROSSCOMPILING)
> +        string(REPLACE "." ";" pythonlibs_version_list ${PYTHONLIBS_VERSION_STRING})
> +        list(GET pythonlibs_version_list 0 pythonlibs_major)
> +        list(GET pythonlibs_version_list 1 pythonlibs_minor)
> +
> +        # Ignore the patch version. Some versions of macOS report a 
> diff erent
> +        # patch version for the system provided interpreter and libraries.
> +        if (CMAKE_CROSSCOMPILING OR (PYTHON_VERSION_MAJOR VERSION_EQUAL pythonlibs_major AND
> +            PYTHON_VERSION_MINOR VERSION_EQUAL pythonlibs_minor))
> +          mark_as_advanced(
> +            PYTHON_LIBRARIES
> +            PYTHON_INCLUDE_DIRS
> +            PYTHON_EXECUTABLE)
> +        endif()
> +      endif()
> +    endif()
> +  endif()
> +
> +  include(FindPackageHandleStandardArgs)
> +  find_package_handle_standard_args(PythonInterpAndLibs
> +                                    FOUND_VAR
> +                                      PYTHONINTERPANDLIBS_FOUND
> +                                    REQUIRED_VARS
> +                                      PYTHON_LIBRARIES
> +                                      PYTHON_INCLUDE_DIRS
> +                                      PYTHON_EXECUTABLE)
> +endif()
> 
> diff  --git a/lldb/cmake/modules/LLDBConfig.cmake b/lldb/cmake/modules/LLDBConfig.cmake
> index 52b8257951be..12fb97fc9d7d 100644
> --- a/lldb/cmake/modules/LLDBConfig.cmake
> +++ b/lldb/cmake/modules/LLDBConfig.cmake
> @@ -51,16 +51,8 @@ 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" Lua LUA_FOUND)
> +add_optional_dependency(LLDB_ENABLE_PYTHON "Enable Python scripting support in LLDB" PythonInterpAndLibs PYTHONINTERPANDLIBS_FOUND)
> 
> -set(default_enable_python ON)
> -
> -if(CMAKE_SYSTEM_NAME MATCHES "Android")
> -  set(default_enable_python OFF)
> -elseif(IOS)
> -  set(default_enable_python OFF)
> -endif()
> -
> -option(LLDB_ENABLE_PYTHON "Enable Python scripting integration." ${default_enable_python})
> option(LLDB_RELOCATABLE_PYTHON "Use the PYTHONHOME environment variable to locate Python." OFF)
> option(LLDB_USE_SYSTEM_SIX "Use six.py shipped with system and do not install a copy of it" OFF)
> option(LLDB_USE_ENTITLEMENTS "When codesigning, use entitlements if available" ON)
> @@ -142,48 +134,13 @@ if (LLDB_ENABLE_LIBEDIT)
> endif()
> 
> if (LLDB_ENABLE_PYTHON)
> -  if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
> -    find_package(Python3 COMPONENTS Interpreter Development REQUIRED)
> -    if(Python3_VERSION VERSION_LESS 3.5)
> -      message(SEND_ERROR "Python 3.5 or newer is required (found: ${Python3_VERSION}")
> -    endif()
> -    set(PYTHON_LIBRARIES ${Python3_LIBRARIES})
> -    include_directories(${Python3_INCLUDE_DIRS})
> -
> -    if (NOT LLDB_RELOCATABLE_PYTHON)
> -      get_filename_component(PYTHON_HOME "${Python3_EXECUTABLE}" DIRECTORY)
> -      file(TO_CMAKE_PATH "${PYTHON_HOME}" LLDB_PYTHON_HOME)
> -    endif()
> -  else()
> -    find_package(PythonInterp REQUIRED)
> -    find_package(PythonLibs REQUIRED)
> -
> -    if (NOT CMAKE_CROSSCOMPILING)
> -      string(REPLACE "." ";" pythonlibs_version_list ${PYTHONLIBS_VERSION_STRING})
> -      list(GET pythonlibs_version_list 0 pythonlibs_major)
> -      list(GET pythonlibs_version_list 1 pythonlibs_minor)
> -
> -      # Ignore the patch version. Some versions of macOS report a 
> diff erent patch
> -      # version for the system provided interpreter and libraries.
> -      if (NOT PYTHON_VERSION_MAJOR VERSION_EQUAL pythonlibs_major OR
> -          NOT PYTHON_VERSION_MINOR VERSION_EQUAL pythonlibs_minor)
> -        message(FATAL_ERROR "Found incompatible Python interpreter (${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR})"
> -                            " and Python libraries (${pythonlibs_major}.${pythonlibs_minor})")
> -      endif()
> -    endif()
> -
> -    if (PYTHON_INCLUDE_DIR)
> -      include_directories(${PYTHON_INCLUDE_DIR})
> -    endif()
> +  include_directories(${PYTHON_INCLUDE_DIRS})
> +  if (NOT LLDB_RELOCATABLE_PYTHON)
> +    get_filename_component(PYTHON_HOME "${PYTHON_EXECUTABLE}" DIRECTORY)
> +    file(TO_CMAKE_PATH "${PYTHON_HOME}" LLDB_PYTHON_HOME)
>   endif()
> endif()
> 
> -if (NOT LLDB_ENABLE_PYTHON)
> -  unset(PYTHON_INCLUDE_DIR)
> -  unset(PYTHON_LIBRARIES)
> -  unset(PYTHON_EXECUTABLE)
> -endif()
> -
> if (LLVM_EXTERNAL_CLANG_SOURCE_DIR)
>   include_directories(${LLVM_EXTERNAL_CLANG_SOURCE_DIR}/include)
> else ()
> 
> diff  --git a/lldb/lldb/cmake/modules/FindPythonInterpAndLibs.cmake b/lldb/lldb/cmake/modules/FindPythonInterpAndLibs.cmake
> new file mode 100644
> index 000000000000..90c902f74ae5
> --- /dev/null
> +++ b/lldb/lldb/cmake/modules/FindPythonInterpAndLibs.cmake
> @@ -0,0 +1,51 @@
> +#.rst:
> +# FindPythonInterpndLibs
> +# -----------
> +#
> +# Find the python interpreter and libraries as a whole.
> +
> +if(PYTHON_LIBRARIES AND PYTHON_INCLUDE_DIRS AND PYTHON_EXECUTABLE)
> +  set(PYTHONINTERPANDLIBS_FOUND TRUE)
> +else()
> +  if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
> +    find_package(Python3 COMPONENTS Interpreter Development QUIET)
> +    if (Python3_FOUND AND Python3_Interpreter_FOUND)
> +      set(PYTHON_LIBRARIES ${Python3_LIBRARIES})
> +      set(PYTHON_INCLUDE_DIRS ${Python3_INCLUDE_DIRS})
> +      set(PYTHON_EXECUTABLE ${Python3_EXECUTABLE})
> +      mark_as_advanced(
> +        PYTHON_LIBRARIES
> +        PYTHON_INCLUDE_DIRS
> +        PYTHON_EXECUTABLE)
> +    endif()
> +  else()
> +    find_package(PythonInterp QUIET)
> +    find_package(PythonLibs QUIET)
> +    if(PYTHONINTERP_FOUND AND PYTHONLIBS_FOUND)
> +      if (NOT CMAKE_CROSSCOMPILING)
> +        string(REPLACE "." ";" pythonlibs_version_list ${PYTHONLIBS_VERSION_STRING})
> +        list(GET pythonlibs_version_list 0 pythonlibs_major)
> +        list(GET pythonlibs_version_list 1 pythonlibs_minor)
> +
> +        # Ignore the patch version. Some versions of macOS report a 
> diff erent
> +        # patch version for the system provided interpreter and libraries.
> +        if (CMAKE_CROSSCOMPILING OR (PYTHON_VERSION_MAJOR VERSION_EQUAL pythonlibs_major AND
> +            PYTHON_VERSION_MINOR VERSION_EQUAL pythonlibs_minor))
> +          mark_as_advanced(
> +            PYTHON_LIBRARIES
> +            PYTHON_INCLUDE_DIRS
> +            PYTHON_EXECUTABLE)
> +        endif()
> +      endif()
> +    endif()
> +  endif()
> +c
> +  include(FindPackageHandleStandardArgs)
> +  find_package_handle_standard_args(PythonInterpAndLibs
> +                                    FOUND_VAR
> +                                      PYTHONINTERPANDLIBS_FOUND
> +                                    REQUIRED_VARS
> +                                      PYTHON_LIBRARIES
> +                                      PYTHON_INCLUDE_DIRS
> +                                      PYTHON_EXECUTABLE)
> +endif()
> 


I see a bunch of tests failing after this: "ImportError: No module named site".
Reverting seems to fix the problem. If you need any info to reproduce let me know.

--
Davide


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