| // Copyright 2017 Google Inc. All rights reserved. |
| // |
| // 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. |
| |
| #include <Python.h> |
| #include <android-base/file.h> |
| #include <osdefs.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string> |
| |
| int main(int argc, char *argv[]) { |
| // PYTHONEXECUTABLE is only used on MacOs X, when the Python interpreter |
| // embedded in an application bundle. It is not sure that we have this use case |
| // for Android hermetic Python. So remove this environment variable to make |
| // our self-contained environment more strict. |
| // For user (.py) program, it can access hermetic .par file path through |
| // sys.argv[0]. |
| unsetenv(const_cast<char *>("PYTHONEXECUTABLE")); |
| |
| // Always enable Python "-s" option. We don't need user-site directories, |
| // everything's supposed to be hermetic. |
| Py_NoUserSiteDirectory = 1; |
| |
| // Ignore PYTHONPATH and PYTHONHOME from the environment. Unless we're not |
| // running from inside the zip file, in which case the user may have |
| // specified a PYTHONPATH. |
| #ifdef ANDROID_AUTORUN |
| Py_IgnoreEnvironmentFlag = 1; |
| #endif |
| |
| Py_DontWriteBytecodeFlag = 1; |
| |
| // Resolving absolute path based on argv[0] is not reliable since it may |
| // include something unusable, too bad. |
| // android::base::GetExecutablePath() also handles for Darwin/Windows. |
| std::string executable_path = android::base::GetExecutablePath(); |
| |
| // Set the equivalent of PYTHONHOME internally. |
| Py_SetPythonHome(strdup(executable_path.c_str())); |
| |
| #ifdef ANDROID_AUTORUN |
| argc += 1; |
| char **new_argv = reinterpret_cast<char**>(calloc(argc, sizeof(*argv))); |
| |
| // Inject the path to our binary into argv[1] so the Py_Main won't parse any |
| // other options, and will execute the __main__.py script inside the zip file |
| // attached to our executable. |
| new_argv[0] = argv[0]; |
| new_argv[1] = strdup(executable_path.c_str()); |
| for (int i = 1; i < argc - 1; i++) { |
| new_argv[i+1] = argv[i]; |
| } |
| argv = new_argv; |
| #endif |
| |
| return Py_Main(argc, argv); |
| } |