def configure_extension_build():
r"""Configures extension build options according to system environment and user's choice.
Returns:
The input to parameters ext_modules, cmdclass, packages, and entry_points as required in setuptools.setup.
"""
try:
cmake_cache_vars = defaultdict(lambda: False,
cmake.get_cmake_cache_variables())
except FileNotFoundError:
# CMakeCache.txt does not exist. Probably running "python setup.py clean" over a clean directory.
cmake_cache_vars = defaultdict(lambda: False)
################################################################################
# Configure compile flags
################################################################################
library_dirs = []
if IS_WINDOWS:
# /NODEFAULTLIB makes sure we only link to DLL runtime
# and matches the flags set for protobuf and ONNX
extra_link_args = ['/NODEFAULTLIB:LIBCMT.LIB']
# /MD links against DLL runtime
# and matches the flags set for protobuf and ONNX
# /Z7 turns on symbolic debugging information in .obj files
# /EHa is about native C++ catch support for asynchronous
# structured exception handling (SEH)
# /DNOMINMAX removes builtin min/max functions
# /wdXXXX disables warning no. XXXX
extra_compile_args = [
'/MD', '/Z7', '/EHa', '/DNOMINMAX', '/wd4267', '/wd4251',
'/wd4522', '/wd4522', '/wd4838', '/wd4305', '/wd4244', '/wd4190',
'/wd4101', '/wd4996', '/wd4275'
]
if sys.version_info[0] == 2:
if not check_env_flag('FORCE_PY27_BUILD'):
report(
'The support for PyTorch with Python 2.7 on Windows is very experimental.'
)
report(
'Please set the flag `FORCE_PY27_BUILD` to 1 to continue build.'
)
sys.exit(1)
# /bigobj increases number of sections in .obj file, which is needed to link
# against libaries in Python 2.7 under Windows
extra_compile_args.append('/bigobj')
else:
extra_link_args = []
extra_compile_args = [
'-std=c++14',
'-Wall',
'-Wextra',
'-Wno-strict-overflow',
'-Wno-unused-parameter',
'-Wno-missing-field-initializers',
'-Wno-write-strings',
'-Wno-unknown-pragmas',
# This is required for Python 2 declarations that are deprecated in 3.
'-Wno-deprecated-declarations',
# Python 2.6 requires -fno-strict-aliasing, see
# http://legacy.python.org/dev/peps/pep-3123/
# We also depend on it in our code (even Python 3).
'-fno-strict-aliasing',
# Clang has an unfixed bug leading to spurious missing
# braces warnings, see
# https://bugs.llvm.org/show_bug.cgi?id=21629
'-Wno-missing-braces',
]
if check_env_flag('WERROR'):
extra_compile_args.append('-Werror')
library_dirs.append(lib_path)
# we specify exact lib names to avoid conflict with lua-torch installs
CAFFE2_LIBS = []
main_compile_args = []
main_libraries = ['shm', 'torch_python']
main_link_args = []
main_sources = ["torch/csrc/stub.cpp"]
# Before the introduction of stub.cpp, _C.so and libcaffe2.so defined
# some of the same symbols, and it was important for _C.so to be
# loaded before libcaffe2.so so that the versions in _C.so got
# used. This happened automatically because we loaded _C.so directly,
# and libcaffe2.so was brought in as a dependency (though I suspect it
# may have been possible to break by importing caffe2 first in the
# same process).
#
# Now, libtorch_python.so and libcaffe2.so define some of the same
# symbols. We directly load the _C.so stub, which brings both of these
# in as dependencies. We have to make sure that symbols continue to be
# looked up in libtorch_python.so first, by making sure it comes
# before libcaffe2.so in the linker command.
main_link_args.extend(CAFFE2_LIBS)
if cmake_cache_vars['USE_CUDA']:
library_dirs.append(os.path.dirname(cmake_cache_vars['CUDA_CUDA_LIB']))
if build_type.is_debug():
if IS_WINDOWS:
extra_link_args.append('/DEBUG:FULL')
else:
extra_compile_args += ['-O0', '-g']
extra_link_args += ['-O0', '-g']
if build_type.is_rel_with_deb_info():
if IS_WINDOWS:
extra_link_args.append('/DEBUG:FULL')
else:
extra_compile_args += ['-g']
extra_link_args += ['-g']
def make_relative_rpath(path):
if IS_DARWIN:
return '-Wl,-rpath,@loader_path/' + path
elif IS_WINDOWS:
return ''
else:
return '-Wl,-rpath,$ORIGIN/' + path
################################################################################
# Declare extensions and package
################################################################################
extensions = []
packages = find_packages(exclude=('tools', 'tools.*'))
C = Extension("torch._C",
libraries=main_libraries,
sources=main_sources,
language='c++',
extra_compile_args=main_compile_args + extra_compile_args,
include_dirs=[],
library_dirs=library_dirs,
extra_link_args=extra_link_args + main_link_args +
[make_relative_rpath('lib')])
extensions.append(C)
if not IS_WINDOWS:
DL = Extension("torch._dl", sources=["torch/csrc/dl.c"], language='c')
extensions.append(DL)
# These extensions are built by cmake and copied manually in build_extensions()
# inside the build_ext implementaiton
extensions.append(
Extension(name=str('caffe2.python.caffe2_pybind11_state'),
sources=[]), )
if cmake_cache_vars['USE_CUDA']:
extensions.append(
Extension(name=str('caffe2.python.caffe2_pybind11_state_gpu'),
sources=[]), )
if cmake_cache_vars['USE_ROCM']:
extensions.append(
Extension(name=str('caffe2.python.caffe2_pybind11_state_hip'),
sources=[]), )
cmdclass = {
'build_ext': build_ext,
'clean': clean,
'install': install,
}
entry_points = {
'console_scripts': [
'convert-caffe2-to-onnx = caffe2.python.onnx.bin.conversion:caffe2_to_onnx',
'convert-onnx-to-caffe2 = caffe2.python.onnx.bin.conversion:onnx_to_caffe2',
]
}
return extensions, cmdclass, packages, entry_points
def configure_extension_build():
r"""Configures extension build options according to system environment and user's choice.
Returns:
The input to parameters ext_modules, cmdclass, packages, and entry_points as required in setuptools.setup.
"""
try:
cmake_cache_vars = defaultdict(lambda: False, cmake.get_cmake_cache_variables())
except FileNotFoundError:
# CMakeCache.txt does not exist. Probably running "python setup.py clean" over a clean directory.
cmake_cache_vars = defaultdict(lambda: False)
################################################################################
# Configure compile flags
################################################################################
library_dirs = []
extra_install_requires = []
if IS_WINDOWS:
# /NODEFAULTLIB makes sure we only link to DLL runtime
# and matches the flags set for protobuf and ONNX
extra_link_args = ['/NODEFAULTLIB:LIBCMT.LIB']
# /MD links against DLL runtime
# and matches the flags set for protobuf and ONNX
# /EHsc is about standard C++ exception handling
# /DNOMINMAX removes builtin min/max functions
# /wdXXXX disables warning no. XXXX
extra_compile_args = ['/MD', '/EHsc', '/DNOMINMAX',
'/wd4267', '/wd4251', '/wd4522', '/wd4522', '/wd4838',
'/wd4305', '/wd4244', '/wd4190', '/wd4101', '/wd4996',
'/wd4275']
else:
extra_link_args = []
extra_compile_args = [
'-Wall',
'-Wextra',
'-Wno-strict-overflow',
'-Wno-unused-parameter',
'-Wno-missing-field-initializers',
'-Wno-write-strings',
'-Wno-unknown-pragmas',
# This is required for Python 2 declarations that are deprecated in 3.
'-Wno-deprecated-declarations',
# Python 2.6 requires -fno-strict-aliasing, see
# http://legacy.python.org/dev/peps/pep-3123/
# We also depend on it in our code (even Python 3).
'-fno-strict-aliasing',
# Clang has an unfixed bug leading to spurious missing
# braces warnings, see
# https://bugs.llvm.org/show_bug.cgi?id=21629
'-Wno-missing-braces',
]
if check_env_flag('WERROR'):
extra_compile_args.append('-Werror')
library_dirs.append(lib_path)
main_compile_args = []
main_libraries = ['torch_python']
main_link_args = []
main_sources = ["torch/csrc/stub.c"]
if cmake_cache_vars['USE_CUDA']:
library_dirs.append(
os.path.dirname(cmake_cache_vars['CUDA_CUDA_LIB']))
if cmake_cache_vars['USE_NUMPY']:
extra_install_requires += ['numpy']
if build_type.is_debug():
if IS_WINDOWS:
extra_compile_args.append('/Z7')
extra_link_args.append('/DEBUG:FULL')
else:
extra_compile_args += ['-O0', '-g']
extra_link_args += ['-O0', '-g']
if build_type.is_rel_with_deb_info():
if IS_WINDOWS:
extra_compile_args.append('/Z7')
extra_link_args.append('/DEBUG:FULL')
else:
extra_compile_args += ['-g']
extra_link_args += ['-g']
def make_relative_rpath(path):
if IS_DARWIN:
return '-Wl,-rpath,@loader_path/' + path
elif IS_WINDOWS:
return ''
else:
return '-Wl,-rpath,$ORIGIN/' + path
################################################################################
# Declare extensions and package
################################################################################
extensions = []
packages = find_packages(exclude=('tools', 'tools.*'))
C = Extension("torch._C",
libraries=main_libraries,
sources=main_sources,
language='c',
extra_compile_args=main_compile_args + extra_compile_args,
include_dirs=[],
library_dirs=library_dirs,
extra_link_args=extra_link_args + main_link_args + [make_relative_rpath('lib')])
extensions.append(C)
if not IS_WINDOWS:
DL = Extension("torch._dl",
sources=["torch/csrc/dl.c"],
language='c')
extensions.append(DL)
# These extensions are built by cmake and copied manually in build_extensions()
# inside the build_ext implementation
extensions.append(
Extension(
name=str('caffe2.python.caffe2_pybind11_state'),
sources=[]),
)
if cmake_cache_vars['USE_CUDA']:
extensions.append(
Extension(
name=str('caffe2.python.caffe2_pybind11_state_gpu'),
sources=[]),
)
if cmake_cache_vars['USE_ROCM']:
extensions.append(
Extension(
name=str('caffe2.python.caffe2_pybind11_state_hip'),
sources=[]),
)
cmdclass = {
'build_ext': build_ext,
'clean': clean,
'install': install,
}
entry_points = {
'console_scripts': [
'convert-caffe2-to-onnx = caffe2.python.onnx.bin.conversion:caffe2_to_onnx',
'convert-onnx-to-caffe2 = caffe2.python.onnx.bin.conversion:onnx_to_caffe2',
]
}
return extensions, cmdclass, packages, entry_points, extra_install_requires
