1
2 /* Frozen modules bootstrap
3 *
4 * Limited and restricted Python interpreter to run
5 * "Tools/scripts/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 /* End includes */
16
17 /* Empty initializer for deepfrozen modules */
_Py_Deepfreeze_Init(void)18 int _Py_Deepfreeze_Init(void)
19 {
20 return 0;
21 }
22 /* Empty finalizer for deepfrozen modules */
23 void
_Py_Deepfreeze_Fini(void)24 _Py_Deepfreeze_Fini(void)
25 {
26 }
27
28 /* Note that a negative size indicates a package. */
29
30 static const struct _frozen bootstrap_modules[] = {
31 {"_frozen_importlib", _Py_M__importlib__bootstrap, (int)sizeof(_Py_M__importlib__bootstrap)},
32 {"_frozen_importlib_external", _Py_M__importlib__bootstrap_external, (int)sizeof(_Py_M__importlib__bootstrap_external)},
33 {0, 0, 0} /* bootstrap sentinel */
34 };
35 static const struct _frozen stdlib_modules[] = {
36 {0, 0, 0} /* stdlib sentinel */
37 };
38 static const struct _frozen test_modules[] = {
39 {0, 0, 0} /* test sentinel */
40 };
41 const struct _frozen *_PyImport_FrozenBootstrap = bootstrap_modules;
42 const struct _frozen *_PyImport_FrozenStdlib = stdlib_modules;
43 const struct _frozen *_PyImport_FrozenTest = test_modules;
44
45 static const struct _module_alias aliases[] = {
46 {"_frozen_importlib", "importlib._bootstrap"},
47 {"_frozen_importlib_external", "importlib._bootstrap_external"},
48 {0, 0} /* aliases sentinel */
49 };
50 const struct _module_alias *_PyImport_FrozenAliases = aliases;
51
52 /* Embedding apps may change this pointer to point to their favorite
53 collection of frozen modules: */
54
55 const struct _frozen *PyImport_FrozenModules = NULL;
56
57 int
58 #ifdef MS_WINDOWS
wmain(int argc,wchar_t ** argv)59 wmain(int argc, wchar_t **argv)
60 #else
61 main(int argc, char **argv)
62 #endif
63 {
64 PyStatus status;
65
66 PyConfig config;
67 PyConfig_InitIsolatedConfig(&config);
68 // don't warn, pybuilddir.txt does not exist yet
69 config.pathconfig_warnings = 0;
70 // parse arguments
71 config.parse_argv = 1;
72 // add current script dir to sys.path
73 config.isolated = 0;
74 config.safe_path = 0;
75
76 #ifdef MS_WINDOWS
77 status = PyConfig_SetArgv(&config, argc, argv);
78 #else
79 status = PyConfig_SetBytesArgv(&config, argc, argv);
80 #endif
81 if (PyStatus_Exception(status)) {
82 goto error;
83 }
84
85 status = PyConfig_Read(&config);
86 if (config.run_filename == NULL) {
87 status = PyStatus_Error("Run filename expected");
88 goto error;
89 }
90
91 #define CLEAR(ATTR) \
92 do { \
93 PyMem_RawFree(ATTR); \
94 ATTR = NULL; \
95 } while (0)
96
97 // isolate from system Python
98 CLEAR(config.base_prefix);
99 CLEAR(config.prefix);
100 CLEAR(config.base_exec_prefix);
101 CLEAR(config.exec_prefix);
102
103 status = Py_InitializeFromConfig(&config);
104 if (PyStatus_Exception(status)) {
105 goto error;
106 }
107 PyConfig_Clear(&config);
108
109 return Py_RunMain();
110
111 error:
112 PyConfig_Clear(&config);
113 if (PyStatus_IsExit(status)) {
114 return status.exitcode;
115 }
116 Py_ExitStatusException(status);
117 }
118
119