torch-mlir/python/CMakeLists.txt

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CMake
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################################################################################
# Resources that must be packaged into the python tree
################################################################################
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file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/npcomp/compiler/backend/refjit_resources")
add_custom_target(NPCOMPPythonResources)
add_custom_command(
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TARGET NPCOMPPythonResources
COMMAND ${CMAKE_COMMAND} -E copy
# TODO: Make the runtime library work for windows.
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${CMAKE_BINARY_DIR}/lib/libNPCOMPCompilerRuntimeShlib.so
${CMAKE_CURRENT_BINARY_DIR}/npcomp/compiler/generic/backend/libNPCOMPCompilerRuntimeShlib.so
)
add_dependencies(NPCOMPPythonResources
NPCOMPCompilerRuntimeShlib
)
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################################################################################
# Manage python source files
################################################################################
npcomp_python_create_symlinks(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
################################################################################
# Native extensions
################################################################################
# Normally on unix-like platforms, extensions are built as "MODULE" libraries
# and do not explicitly link to the python shared object. This allows for
# come greater deployment flexibility since the extension will bind to
# symbols in the python interpreter on load. However, it also keeps the
# linker from erroring on undefined symbols, leaving this to (usually obtuse)
# runtime errors. Building in "SHARED" mode with an explicit link to the
# python libraries allows us to build with the expectation of no undefined
# symbols, which is better for development.
# TODO(laurenzo): Windows requires linking against the PYTHON_LIBRARIES
# TODO(laurenzo): OSX requires allowing undefined (-undefined dynamic_lookup)
if(NPCOMP_PYTHON_BINDINGS_VERSION_LOCKED)
set(NPCOMP_PYEXT_LINK_MODE SHARED)
set(NPCOMP_PYEXT_LIBADD ${Python3_LIBRARIES})
else()
set(NPCOMP_PYEXT_LINK_MODE MODULE)
set(NPCOMP_PYEXT_LIBADD)
endif()
if(NPCOMP_ENABLE_REFJIT)
list(APPEND NPCOMP_PYEXT_LIBADD
NPCOMPBackendRefJITPythonModule
)
endif()
add_library(NPCOMPNativePyExt ${NPCOMP_PYEXT_LINK_MODE}
NpcompModule.cpp
)
set_target_properties(NPCOMPNativePyExt PROPERTIES LIBRARY_OUTPUT_DIRECTORY
"${CMAKE_CURRENT_BINARY_DIR}")
set_target_properties(NPCOMPNativePyExt PROPERTIES OUTPUT_NAME _npcomp)
set_target_properties(NPCOMPNativePyExt PROPERTIES PREFIX
"${PYTHON_MODULE_PREFIX}")
set_target_properties(NPCOMPNativePyExt PROPERTIES SUFFIX
"${PYTHON_MODULE_EXTENSION}")
# pybind requires binding code to be compiled with -fvisibility=hidden
# Better code can be generated if the entire project compiles that way, but
# that is not enforced here.
set_target_properties(NPCOMPNativePyExt PROPERTIES CXX_VISIBILITY_PRESET "hidden")
get_property(dialect_libs GLOBAL PROPERTY MLIR_DIALECT_LIBS)
get_property(conversion_libs GLOBAL PROPERTY MLIR_CONVERSION_LIBS)
target_link_libraries(NPCOMPNativePyExt
PRIVATE
# Transitive dep on the shared library links most things from there.
NPCOMP
NPCOMPInitAll
NPCOMPPythonCommon
${NPCOMP_PYEXT_LIBADD}
)
npcomp_python_target_compile_options(NPCOMPNativePyExt)
mlir_check_all_link_libraries(NPCOMPNativePyExt)