| # Copyright (C) 2021 The Android Open Source Project |
| # |
| # Licensed 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. |
| |
| # This is the init script that is passed to `emcc --em-config=.emscripten` |
| # (Wasm toolchain). It sets vars to locate the various emsdk / llvm dirs. |
| |
| import os |
| import sys |
| from platform import system |
| |
| # We cannot use __file__ here. |
| this_file = os.getenv('EM_CONFIG') |
| if this_file is None: |
| sys.stderr.write('Could not find EM_CONFIG in .emscripten\n') |
| sys.exit(1) |
| |
| root_dir = os.path.dirname(os.path.dirname(os.path.dirname(this_file))) |
| buildools_os = 'mac' if system().lower() == 'darwin' else 'linux64' |
| node_path = os.path.join(root_dir, 'buildtools', buildools_os, 'nodejs') |
| emsdk_path = os.path.join(root_dir, 'buildtools', buildools_os, 'emsdk') |
| |
| # Exported vars. |
| NODE_JS = os.path.join(node_path, 'bin', 'node') |
| LLVM_ROOT = os.path.join(emsdk_path, 'bin') |
| BINARYEN_ROOT = emsdk_path |
| EMSCRIPTEN_ROOT = os.path.join(emsdk_path, 'emscripten') |
| COMPILER_ENGINE = NODE_JS |
| JS_ENGINES = [NODE_JS] |
