1  
       2  /* Frozen modules bootstrap
       3   *
       4   * Limited and restricted Python interpreter to run
       5   * "Tools/build/deepfreeze.py" on systems with no or older Python
       6   * interpreter.
       7   */
       8  
       9  #include "Python.h"
      10  #include "pycore_import.h"
      11  
      12  /* Includes for frozen modules: */
      13  #include "Python/frozen_modules/importlib._bootstrap.h"
      14  #include "Python/frozen_modules/importlib._bootstrap_external.h"
      15  #include "Python/frozen_modules/zipimport.h"
      16  /* End includes */
      17  
      18  uint32_t _Py_next_func_version = 1;
      19  
      20  /* Empty initializer for deepfrozen modules */
      21  int _Py_Deepfreeze_Init(void)
      22  {
      23      return 0;
      24  }
      25  /* Empty finalizer for deepfrozen modules */
      26  void
      27  _Py_Deepfreeze_Fini(void)
      28  {
      29  }
      30  
      31  /* Note that a negative size indicates a package. */
      32  
      33  static const struct _frozen bootstrap_modules[] = {
      34      {"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap)},
      35      {"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external)},
      36      {"zipimport", _Py_M__zipimport, (int)sizeof(_Py_M__zipimport)},
      37      {0, 0, 0} /* bootstrap sentinel */
      38  };
      39  static const struct _frozen stdlib_modules[] = {
      40      {0, 0, 0} /* stdlib sentinel */
      41  };
      42  static const struct _frozen test_modules[] = {
      43      {0, 0, 0} /* test sentinel */
      44  };
      45  const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
      46  const struct _frozen *_PyImport_FrozenStdlib = stdlib_modules;
      47  const struct _frozen *_PyImport_FrozenTest = test_modules;
      48  
      49  static const struct _module_alias aliases[] = {
      50      {"_frozen_importlib", "importlib._bootstrap"},
      51      {"_frozen_importlib_external", "importlib._bootstrap_external"},
      52      {0, 0} /* aliases sentinel */
      53  };
      54  const struct _module_alias *_PyImport_FrozenAliases = aliases;
      55  
      56  /* Embedding apps may change this pointer to point to their favorite
      57     collection of frozen modules: */
      58  
      59  const struct _frozen *PyImport_FrozenModules = NULL;
      60  
      61  int
      62  #ifdef MS_WINDOWS
      63  wmain(int argc, wchar_t **argv)
      64  #else
      65  main(int argc, char **argv)
      66  #endif
      67  {
      68      PyStatus status;
      69  
      70      PyConfig config;
      71      PyConfig_InitIsolatedConfig(&config);
      72      // don't warn, pybuilddir.txt does not exist yet
      73      config.pathconfig_warnings = 0;
      74      // parse arguments
      75      config.parse_argv = 1;
      76      // add current script dir to sys.path
      77      config.isolated = 0;
      78      config.safe_path = 0;
      79  
      80  #ifdef MS_WINDOWS
      81      status = PyConfig_SetArgv(&config, argc, argv);
      82  #else
      83      status = PyConfig_SetBytesArgv(&config, argc, argv);
      84  #endif
      85      if (PyStatus_Exception(status)) {
      86          goto error;
      87      }
      88  
      89      status = PyConfig_Read(&config);
      90      if (config.run_filename == NULL) {
      91          status = PyStatus_Error("Run filename expected");
      92          goto error;
      93      }
      94  
      95  #define CLEAR(ATTR) \
      96      do { \
      97          PyMem_RawFree(ATTR); \
      98          ATTR = NULL; \
      99      } while (0)
     100  
     101      // isolate from system Python
     102      CLEAR(config.base_prefix);
     103      CLEAR(config.prefix);
     104      CLEAR(config.base_exec_prefix);
     105      CLEAR(config.exec_prefix);
     106  
     107      status = Py_InitializeFromConfig(&config);
     108      if (PyStatus_Exception(status)) {
     109          goto error;
     110      }
     111      PyConfig_Clear(&config);
     112  
     113      return Py_RunMain();
     114  
     115  error:
     116      PyConfig_Clear(&config);
     117      if (PyStatus_IsExit(status)) {
     118          return status.exitcode;
     119      }
     120      Py_ExitStatusException(status);
     121  }
     122