| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| """Util to invoke NDK compiler toolchain.""" |
| # pylint: disable=invalid-name |
| from __future__ import absolute_import as _abs |
| |
| import subprocess |
| import os |
| from .._ffi.base import py_str |
| from .cc import get_target_by_dump_machine |
| |
| |
| def create_shared(output, objects, options=None): |
| """Create shared library. |
| |
| Parameters |
| ---------- |
| output : str |
| The target shared library. |
| |
| objects : list |
| List of object files. |
| |
| options : list of str, optional |
| The additional options. |
| """ |
| if "TVM_NDK_CC" not in os.environ: |
| raise RuntimeError( |
| "Require environment variable TVM_NDK_CC" " to be the NDK standalone compiler" |
| ) |
| compiler = os.environ["TVM_NDK_CC"] |
| cmd = [compiler] |
| cmd += ["-o", output] |
| |
| if isinstance(objects, str): |
| cmd += [objects] |
| else: |
| cmd += objects |
| |
| options = options if options else ["-shared", "-fPIC", "-lm"] |
| cmd += options |
| |
| proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT) |
| (out, _) = proc.communicate() |
| |
| if proc.returncode != 0: |
| msg = "Compilation error:\n" |
| msg += py_str(out) |
| raise RuntimeError(msg) |
| |
| |
| # assign output format |
| create_shared.output_format = "so" |
| create_shared.get_target_triple = ( |
| get_target_by_dump_machine(os.environ["TVM_NDK_CC"]) if "TVM_NDK_CC" in os.environ else None |
| ) |