Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 1 | /* Module definition and import implementation */ |
| 2 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 3 | #include "Python.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 4 | |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 5 | #include "Python-ast.h" |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 6 | #undef Yield /* undefine macro conflicting with winbase.h */ |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 7 | #include "internal/hash.h" |
| 8 | #include "internal/import.h" |
Eric Snow | 2ebc5ce | 2017-09-07 23:51:28 -0600 | [diff] [blame] | 9 | #include "internal/pystate.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 10 | #include "errcode.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 11 | #include "marshal.h" |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 12 | #include "code.h" |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 13 | #include "frameobject.h" |
Guido van Rossum | d8bac6d | 1992-02-26 15:19:13 +0000 | [diff] [blame] | 14 | #include "osdefs.h" |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 15 | #include "importdl.h" |
Christian Heimes | 3d2b407 | 2017-09-30 00:53:19 +0200 | [diff] [blame] | 16 | #include "pydtrace.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 17 | |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 18 | #ifdef HAVE_FCNTL_H |
| 19 | #include <fcntl.h> |
| 20 | #endif |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 21 | #ifdef __cplusplus |
Brett Cannon | 9a5b25a | 2010-03-01 02:09:17 +0000 | [diff] [blame] | 22 | extern "C" { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 23 | #endif |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 24 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 25 | #define CACHEDIR "__pycache__" |
Guido van Rossum | 96774c1 | 2000-05-01 20:19:08 +0000 | [diff] [blame] | 26 | |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 27 | /* See _PyImport_FixupExtensionObject() below */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 28 | static PyObject *extensions = NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 29 | |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame] | 30 | /* This table is defined in config.c: */ |
| 31 | extern struct _inittab _PyImport_Inittab[]; |
| 32 | |
| 33 | struct _inittab *PyImport_Inittab = _PyImport_Inittab; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 34 | static struct _inittab *inittab_copy = NULL; |
Guido van Rossum | 66f1fa8 | 1991-04-03 19:03:52 +0000 | [diff] [blame] | 35 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 36 | /*[clinic input] |
| 37 | module _imp |
| 38 | [clinic start generated code]*/ |
Serhiy Storchaka | 1009bf1 | 2015-04-03 23:53:51 +0300 | [diff] [blame] | 39 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=9c332475d8686284]*/ |
Brett Cannon | fd4d050 | 2014-05-30 11:21:14 -0400 | [diff] [blame] | 40 | |
| 41 | #include "clinic/import.c.h" |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 42 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 43 | /* Initialize things */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 44 | |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 45 | _PyInitError |
Victor Stinner | 672b6ba | 2017-12-06 17:25:50 +0100 | [diff] [blame] | 46 | _PyImport_Init(PyInterpreterState *interp) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 47 | { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 48 | interp->builtins_copy = PyDict_Copy(interp->builtins); |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 49 | if (interp->builtins_copy == NULL) { |
| 50 | return _Py_INIT_ERR("Can't backup builtins dict"); |
| 51 | } |
| 52 | return _Py_INIT_OK(); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 53 | } |
| 54 | |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 55 | _PyInitError |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 56 | _PyImportHooks_Init(void) |
| 57 | { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 58 | PyObject *v, *path_hooks = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 59 | int err = 0; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 60 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 61 | /* adding sys.path_hooks and sys.path_importer_cache */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 62 | v = PyList_New(0); |
| 63 | if (v == NULL) |
| 64 | goto error; |
| 65 | err = PySys_SetObject("meta_path", v); |
| 66 | Py_DECREF(v); |
| 67 | if (err) |
| 68 | goto error; |
| 69 | v = PyDict_New(); |
| 70 | if (v == NULL) |
| 71 | goto error; |
| 72 | err = PySys_SetObject("path_importer_cache", v); |
| 73 | Py_DECREF(v); |
| 74 | if (err) |
| 75 | goto error; |
| 76 | path_hooks = PyList_New(0); |
| 77 | if (path_hooks == NULL) |
| 78 | goto error; |
| 79 | err = PySys_SetObject("path_hooks", path_hooks); |
| 80 | if (err) { |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 81 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 82 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 83 | Py_DECREF(path_hooks); |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 84 | return _Py_INIT_OK(); |
| 85 | |
| 86 | error: |
| 87 | PyErr_Print(); |
| 88 | return _Py_INIT_ERR("initializing sys.meta_path, sys.path_hooks, " |
| 89 | "or path_importer_cache failed"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 90 | } |
| 91 | |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 92 | _PyInitError |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 93 | _PyImportZip_Init(void) |
| 94 | { |
| 95 | PyObject *path_hooks, *zimpimport; |
| 96 | int err = 0; |
| 97 | |
| 98 | path_hooks = PySys_GetObject("path_hooks"); |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 99 | if (path_hooks == NULL) { |
| 100 | PyErr_SetString(PyExc_RuntimeError, "unable to get sys.path_hooks"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 101 | goto error; |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 102 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 103 | |
| 104 | if (Py_VerboseFlag) |
| 105 | PySys_WriteStderr("# installing zipimport hook\n"); |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 106 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 107 | zimpimport = PyImport_ImportModule("zipimport"); |
| 108 | if (zimpimport == NULL) { |
| 109 | PyErr_Clear(); /* No zip import module -- okay */ |
| 110 | if (Py_VerboseFlag) |
| 111 | PySys_WriteStderr("# can't import zipimport\n"); |
| 112 | } |
| 113 | else { |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 114 | _Py_IDENTIFIER(zipimporter); |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 115 | PyObject *zipimporter = _PyObject_GetAttrId(zimpimport, |
| 116 | &PyId_zipimporter); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 117 | Py_DECREF(zimpimport); |
| 118 | if (zipimporter == NULL) { |
| 119 | PyErr_Clear(); /* No zipimporter object -- okay */ |
| 120 | if (Py_VerboseFlag) |
| 121 | PySys_WriteStderr( |
| 122 | "# can't import zipimport.zipimporter\n"); |
| 123 | } |
| 124 | else { |
Brett Cannon | 8923a4d | 2012-04-24 22:03:46 -0400 | [diff] [blame] | 125 | /* sys.path_hooks.insert(0, zipimporter) */ |
| 126 | err = PyList_Insert(path_hooks, 0, zipimporter); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 127 | Py_DECREF(zipimporter); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 128 | if (err < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 129 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 130 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 131 | if (Py_VerboseFlag) |
| 132 | PySys_WriteStderr( |
| 133 | "# installed zipimport hook\n"); |
| 134 | } |
| 135 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 136 | |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 137 | return _Py_INIT_OK(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 138 | |
| 139 | error: |
| 140 | PyErr_Print(); |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 141 | return _Py_INIT_ERR("initializing zipimport failed"); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 142 | } |
| 143 | |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 144 | /* Locking primitives to prevent parallel imports of the same module |
| 145 | in different threads to return with a partially loaded module. |
| 146 | These calls are serialized by the global interpreter lock. */ |
| 147 | |
Guido van Rossum | 49b5606 | 1998-10-01 20:42:43 +0000 | [diff] [blame] | 148 | #include "pythread.h" |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 149 | |
Guido van Rossum | 65d5b57 | 1998-12-21 19:32:43 +0000 | [diff] [blame] | 150 | static PyThread_type_lock import_lock = 0; |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 151 | static unsigned long import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 152 | static int import_lock_level = 0; |
| 153 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 154 | void |
| 155 | _PyImport_AcquireLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 156 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 157 | unsigned long me = PyThread_get_thread_ident(); |
| 158 | if (me == PYTHREAD_INVALID_THREAD_ID) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 159 | return; /* Too bad */ |
| 160 | if (import_lock == NULL) { |
| 161 | import_lock = PyThread_allocate_lock(); |
| 162 | if (import_lock == NULL) |
| 163 | return; /* Nothing much we can do. */ |
| 164 | } |
| 165 | if (import_lock_thread == me) { |
| 166 | import_lock_level++; |
| 167 | return; |
| 168 | } |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 169 | if (import_lock_thread != PYTHREAD_INVALID_THREAD_ID || |
| 170 | !PyThread_acquire_lock(import_lock, 0)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 171 | { |
| 172 | PyThreadState *tstate = PyEval_SaveThread(); |
| 173 | PyThread_acquire_lock(import_lock, 1); |
| 174 | PyEval_RestoreThread(tstate); |
| 175 | } |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 176 | assert(import_lock_level == 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 177 | import_lock_thread = me; |
| 178 | import_lock_level = 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 179 | } |
| 180 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 181 | int |
| 182 | _PyImport_ReleaseLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 183 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 184 | unsigned long me = PyThread_get_thread_ident(); |
| 185 | if (me == PYTHREAD_INVALID_THREAD_ID || import_lock == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 186 | return 0; /* Too bad */ |
| 187 | if (import_lock_thread != me) |
| 188 | return -1; |
| 189 | import_lock_level--; |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 190 | assert(import_lock_level >= 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 191 | if (import_lock_level == 0) { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 192 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 193 | PyThread_release_lock(import_lock); |
| 194 | } |
| 195 | return 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 196 | } |
| 197 | |
Antoine Pitrou | f7ecfac | 2017-05-28 11:35:14 +0200 | [diff] [blame] | 198 | /* This function is called from PyOS_AfterFork_Child to ensure that newly |
Gregory P. Smith | 24cec9f | 2010-03-01 06:18:41 +0000 | [diff] [blame] | 199 | created child processes do not share locks with the parent. |
| 200 | We now acquire the import lock around fork() calls but on some platforms |
| 201 | (Solaris 9 and earlier? see isue7242) that still left us with problems. */ |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 202 | |
| 203 | void |
| 204 | _PyImport_ReInitLock(void) |
| 205 | { |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 206 | if (import_lock != NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 207 | import_lock = PyThread_allocate_lock(); |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 208 | if (import_lock == NULL) { |
| 209 | Py_FatalError("PyImport_ReInitLock failed to create a new lock"); |
| 210 | } |
| 211 | } |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 212 | if (import_lock_level > 1) { |
| 213 | /* Forked as a side effect of import */ |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 214 | unsigned long me = PyThread_get_thread_ident(); |
Brett Cannon | e4710cf | 2012-11-15 21:39:36 -0500 | [diff] [blame] | 215 | /* The following could fail if the lock is already held, but forking as |
| 216 | a side-effect of an import is a) rare, b) nuts, and c) difficult to |
| 217 | do thanks to the lock only being held when doing individual module |
| 218 | locks per import. */ |
| 219 | PyThread_acquire_lock(import_lock, NOWAIT_LOCK); |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 220 | import_lock_thread = me; |
| 221 | import_lock_level--; |
| 222 | } else { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 223 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 224 | import_lock_level = 0; |
| 225 | } |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 226 | } |
| 227 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 228 | /*[clinic input] |
| 229 | _imp.lock_held |
| 230 | |
| 231 | Return True if the import lock is currently held, else False. |
| 232 | |
| 233 | On platforms without threads, return False. |
| 234 | [clinic start generated code]*/ |
| 235 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 236 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 237 | _imp_lock_held_impl(PyObject *module) |
| 238 | /*[clinic end generated code: output=8b89384b5e1963fc input=9b088f9b217d9bdf]*/ |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 239 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 240 | return PyBool_FromLong(import_lock_thread != PYTHREAD_INVALID_THREAD_ID); |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 241 | } |
| 242 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 243 | /*[clinic input] |
| 244 | _imp.acquire_lock |
| 245 | |
| 246 | Acquires the interpreter's import lock for the current thread. |
| 247 | |
| 248 | This lock should be used by import hooks to ensure thread-safety when importing |
| 249 | modules. On platforms without threads, this function does nothing. |
| 250 | [clinic start generated code]*/ |
| 251 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 252 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 253 | _imp_acquire_lock_impl(PyObject *module) |
| 254 | /*[clinic end generated code: output=1aff58cb0ee1b026 input=4a2d4381866d5fdc]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 255 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 256 | _PyImport_AcquireLock(); |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 257 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 258 | } |
| 259 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 260 | /*[clinic input] |
| 261 | _imp.release_lock |
| 262 | |
| 263 | Release the interpreter's import lock. |
| 264 | |
| 265 | On platforms without threads, this function does nothing. |
| 266 | [clinic start generated code]*/ |
| 267 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 268 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 269 | _imp_release_lock_impl(PyObject *module) |
| 270 | /*[clinic end generated code: output=7faab6d0be178b0a input=934fb11516dd778b]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 271 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 272 | if (_PyImport_ReleaseLock() < 0) { |
| 273 | PyErr_SetString(PyExc_RuntimeError, |
| 274 | "not holding the import lock"); |
| 275 | return NULL; |
| 276 | } |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 277 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 278 | } |
| 279 | |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 280 | void |
| 281 | _PyImport_Fini(void) |
| 282 | { |
Serhiy Storchaka | 505ff75 | 2014-02-09 13:33:53 +0200 | [diff] [blame] | 283 | Py_CLEAR(extensions); |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 284 | if (import_lock != NULL) { |
| 285 | PyThread_free_lock(import_lock); |
| 286 | import_lock = NULL; |
| 287 | } |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 288 | } |
| 289 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 290 | void |
| 291 | _PyImport_Fini2(void) |
| 292 | { |
| 293 | /* Use the same memory allocator than PyImport_ExtendInittab(). */ |
| 294 | PyMemAllocatorEx old_alloc; |
| 295 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 296 | |
| 297 | /* Free memory allocated by PyImport_ExtendInittab() */ |
| 298 | PyMem_RawFree(inittab_copy); |
| 299 | |
| 300 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 301 | } |
| 302 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 303 | /* Helper for sys */ |
| 304 | |
| 305 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 306 | PyImport_GetModuleDict(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 307 | { |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 308 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 309 | if (interp->modules == NULL) { |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 310 | Py_FatalError("PyImport_GetModuleDict: no module dictionary!"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 311 | } |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 312 | return interp->modules; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 313 | } |
| 314 | |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 315 | /* In some corner cases it is important to be sure that the import |
| 316 | machinery has been initialized (or not cleaned up yet). For |
| 317 | example, see issue #4236 and PyModule_Create2(). */ |
| 318 | |
| 319 | int |
| 320 | _PyImport_IsInitialized(PyInterpreterState *interp) |
| 321 | { |
| 322 | if (interp->modules == NULL) |
| 323 | return 0; |
| 324 | return 1; |
| 325 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 326 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 327 | PyObject * |
| 328 | _PyImport_GetModuleId(struct _Py_Identifier *nameid) |
| 329 | { |
| 330 | PyObject *name = _PyUnicode_FromId(nameid); /* borrowed */ |
| 331 | if (name == NULL) { |
| 332 | return NULL; |
| 333 | } |
| 334 | return PyImport_GetModule(name); |
| 335 | } |
| 336 | |
| 337 | int |
| 338 | _PyImport_SetModule(PyObject *name, PyObject *m) |
| 339 | { |
| 340 | PyObject *modules = PyImport_GetModuleDict(); |
| 341 | return PyObject_SetItem(modules, name, m); |
| 342 | } |
| 343 | |
| 344 | int |
| 345 | _PyImport_SetModuleString(const char *name, PyObject *m) |
| 346 | { |
| 347 | PyObject *modules = PyImport_GetModuleDict(); |
| 348 | return PyMapping_SetItemString(modules, name, m); |
| 349 | } |
| 350 | |
| 351 | PyObject * |
| 352 | PyImport_GetModule(PyObject *name) |
| 353 | { |
| 354 | PyObject *m; |
| 355 | PyObject *modules = PyImport_GetModuleDict(); |
| 356 | if (modules == NULL) { |
| 357 | PyErr_SetString(PyExc_RuntimeError, "unable to get sys.modules"); |
| 358 | return NULL; |
| 359 | } |
| 360 | Py_INCREF(modules); |
| 361 | if (PyDict_CheckExact(modules)) { |
| 362 | m = PyDict_GetItemWithError(modules, name); /* borrowed */ |
| 363 | Py_XINCREF(m); |
| 364 | } |
| 365 | else { |
| 366 | m = PyObject_GetItem(modules, name); |
| 367 | if (PyErr_ExceptionMatches(PyExc_KeyError)) { |
| 368 | PyErr_Clear(); |
| 369 | } |
| 370 | } |
| 371 | Py_DECREF(modules); |
| 372 | return m; |
| 373 | } |
| 374 | |
| 375 | |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 376 | /* List of names to clear in sys */ |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 377 | static const char * const sys_deletes[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 378 | "path", "argv", "ps1", "ps2", |
| 379 | "last_type", "last_value", "last_traceback", |
| 380 | "path_hooks", "path_importer_cache", "meta_path", |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 381 | "__interactivehook__", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 382 | /* misc stuff */ |
| 383 | "flags", "float_info", |
| 384 | NULL |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 385 | }; |
| 386 | |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 387 | static const char * const sys_files[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 388 | "stdin", "__stdin__", |
| 389 | "stdout", "__stdout__", |
| 390 | "stderr", "__stderr__", |
| 391 | NULL |
Guido van Rossum | 05f9dce | 1998-02-19 20:58:44 +0000 | [diff] [blame] | 392 | }; |
| 393 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 394 | /* Un-initialize things, as good as we can */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 395 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 396 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 397 | PyImport_Cleanup(void) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 398 | { |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 399 | Py_ssize_t pos; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 400 | PyObject *key, *value, *dict; |
| 401 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 402 | PyObject *modules = PyImport_GetModuleDict(); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 403 | PyObject *weaklist = NULL; |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 404 | const char * const *p; |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 405 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 406 | if (modules == NULL) |
| 407 | return; /* Already done */ |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 408 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 409 | /* Delete some special variables first. These are common |
| 410 | places where user values hide and people complain when their |
| 411 | destructors fail. Since the modules containing them are |
| 412 | deleted *last* of all, they would come too late in the normal |
| 413 | destruction order. Sigh. */ |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 414 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 415 | /* XXX Perhaps these precautions are obsolete. Who knows? */ |
| 416 | |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 417 | if (Py_VerboseFlag) |
| 418 | PySys_WriteStderr("# clear builtins._\n"); |
| 419 | PyDict_SetItemString(interp->builtins, "_", Py_None); |
| 420 | |
| 421 | for (p = sys_deletes; *p != NULL; p++) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 422 | if (Py_VerboseFlag) |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 423 | PySys_WriteStderr("# clear sys.%s\n", *p); |
| 424 | PyDict_SetItemString(interp->sysdict, *p, Py_None); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 425 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 426 | for (p = sys_files; *p != NULL; p+=2) { |
| 427 | if (Py_VerboseFlag) |
| 428 | PySys_WriteStderr("# restore sys.%s\n", *p); |
| 429 | value = PyDict_GetItemString(interp->sysdict, *(p+1)); |
| 430 | if (value == NULL) |
| 431 | value = Py_None; |
| 432 | PyDict_SetItemString(interp->sysdict, *p, value); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 433 | } |
Guido van Rossum | 05f9dce | 1998-02-19 20:58:44 +0000 | [diff] [blame] | 434 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 435 | /* We prepare a list which will receive (name, weakref) tuples of |
| 436 | modules when they are removed from sys.modules. The name is used |
| 437 | for diagnosis messages (in verbose mode), while the weakref helps |
| 438 | detect those modules which have been held alive. */ |
| 439 | weaklist = PyList_New(0); |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 440 | if (weaklist == NULL) |
| 441 | PyErr_Clear(); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 442 | |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 443 | #define STORE_MODULE_WEAKREF(name, mod) \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 444 | if (weaklist != NULL) { \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 445 | PyObject *wr = PyWeakref_NewRef(mod, NULL); \ |
| 446 | if (name && wr) { \ |
| 447 | PyObject *tup = PyTuple_Pack(2, name, wr); \ |
| 448 | PyList_Append(weaklist, tup); \ |
| 449 | Py_XDECREF(tup); \ |
| 450 | } \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 451 | Py_XDECREF(wr); \ |
| 452 | if (PyErr_Occurred()) \ |
| 453 | PyErr_Clear(); \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 454 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 455 | #define CLEAR_MODULE(name, mod) \ |
| 456 | if (PyModule_Check(mod)) { \ |
| 457 | if (Py_VerboseFlag && PyUnicode_Check(name)) \ |
| 458 | PySys_FormatStderr("# cleanup[2] removing %U\n", name); \ |
| 459 | STORE_MODULE_WEAKREF(name, mod); \ |
| 460 | PyObject_SetItem(modules, name, Py_None); \ |
| 461 | } |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 462 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 463 | /* Remove all modules from sys.modules, hoping that garbage collection |
| 464 | can reclaim most of them. */ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 465 | if (PyDict_CheckExact(modules)) { |
| 466 | pos = 0; |
| 467 | while (PyDict_Next(modules, &pos, &key, &value)) { |
| 468 | CLEAR_MODULE(key, value); |
| 469 | } |
| 470 | } |
| 471 | else { |
| 472 | PyObject *iterator = PyObject_GetIter(modules); |
| 473 | if (iterator == NULL) { |
| 474 | PyErr_Clear(); |
| 475 | } |
| 476 | else { |
| 477 | while ((key = PyIter_Next(iterator))) { |
| 478 | value = PyObject_GetItem(modules, key); |
| 479 | if (value == NULL) { |
| 480 | PyErr_Clear(); |
| 481 | continue; |
| 482 | } |
| 483 | CLEAR_MODULE(key, value); |
| 484 | Py_DECREF(value); |
| 485 | Py_DECREF(key); |
| 486 | } |
| 487 | Py_DECREF(iterator); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 488 | } |
| 489 | } |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 490 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 491 | /* Clear the modules dict. */ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 492 | if (PyDict_CheckExact(modules)) { |
| 493 | PyDict_Clear(modules); |
| 494 | } |
| 495 | else { |
| 496 | _Py_IDENTIFIER(clear); |
| 497 | if (_PyObject_CallMethodId(modules, &PyId_clear, "") == NULL) |
| 498 | PyErr_Clear(); |
| 499 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 500 | /* Restore the original builtins dict, to ensure that any |
| 501 | user data gets cleared. */ |
| 502 | dict = PyDict_Copy(interp->builtins); |
| 503 | if (dict == NULL) |
| 504 | PyErr_Clear(); |
| 505 | PyDict_Clear(interp->builtins); |
| 506 | if (PyDict_Update(interp->builtins, interp->builtins_copy)) |
| 507 | PyErr_Clear(); |
| 508 | Py_XDECREF(dict); |
Antoine Pitrou | 40322e6 | 2013-08-11 00:30:09 +0200 | [diff] [blame] | 509 | /* Clear module dict copies stored in the interpreter state */ |
| 510 | _PyState_ClearModules(); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 511 | /* Collect references */ |
| 512 | _PyGC_CollectNoFail(); |
Antoine Pitrou | 5f454a0 | 2013-05-06 21:15:57 +0200 | [diff] [blame] | 513 | /* Dump GC stats before it's too late, since it uses the warnings |
| 514 | machinery. */ |
| 515 | _PyGC_DumpShutdownStats(); |
| 516 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 517 | /* Now, if there are any modules left alive, clear their globals to |
| 518 | minimize potential leaks. All C extension modules actually end |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 519 | up here, since they are kept alive in the interpreter state. |
| 520 | |
| 521 | The special treatment of "builtins" here is because even |
| 522 | when it's not referenced as a module, its dictionary is |
| 523 | referenced by almost every module's __builtins__. Since |
| 524 | deleting a module clears its dictionary (even if there are |
| 525 | references left to it), we need to delete the "builtins" |
| 526 | module last. Likewise, we don't delete sys until the very |
| 527 | end because it is implicitly referenced (e.g. by print). */ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 528 | if (weaklist != NULL) { |
| 529 | Py_ssize_t i, n; |
| 530 | n = PyList_GET_SIZE(weaklist); |
| 531 | for (i = 0; i < n; i++) { |
| 532 | PyObject *tup = PyList_GET_ITEM(weaklist, i); |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 533 | PyObject *name = PyTuple_GET_ITEM(tup, 0); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 534 | PyObject *mod = PyWeakref_GET_OBJECT(PyTuple_GET_ITEM(tup, 1)); |
| 535 | if (mod == Py_None) |
| 536 | continue; |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 537 | assert(PyModule_Check(mod)); |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 538 | dict = PyModule_GetDict(mod); |
| 539 | if (dict == interp->builtins || dict == interp->sysdict) |
| 540 | continue; |
| 541 | Py_INCREF(mod); |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 542 | if (Py_VerboseFlag && PyUnicode_Check(name)) |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 543 | PySys_FormatStderr("# cleanup[3] wiping %U\n", name); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 544 | _PyModule_Clear(mod); |
| 545 | Py_DECREF(mod); |
Antoine Pitrou | 070cb3c | 2013-05-08 13:23:25 +0200 | [diff] [blame] | 546 | } |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 547 | Py_DECREF(weaklist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 548 | } |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 549 | |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 550 | /* Next, delete sys and builtins (in that order) */ |
| 551 | if (Py_VerboseFlag) |
| 552 | PySys_FormatStderr("# cleanup[3] wiping sys\n"); |
| 553 | _PyModule_ClearDict(interp->sysdict); |
| 554 | if (Py_VerboseFlag) |
| 555 | PySys_FormatStderr("# cleanup[3] wiping builtins\n"); |
| 556 | _PyModule_ClearDict(interp->builtins); |
| 557 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 558 | /* Clear and delete the modules directory. Actual modules will |
| 559 | still be there only if imported during the execution of some |
| 560 | destructor. */ |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 561 | interp->modules = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 562 | Py_DECREF(modules); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 563 | |
| 564 | /* Once more */ |
| 565 | _PyGC_CollectNoFail(); |
| 566 | |
| 567 | #undef STORE_MODULE_WEAKREF |
Guido van Rossum | 8d15b5d | 1990-10-26 14:58:58 +0000 | [diff] [blame] | 568 | } |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 569 | |
| 570 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 571 | /* Helper for pythonrun.c -- return magic number and tag. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 572 | |
| 573 | long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 574 | PyImport_GetMagicNumber(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 575 | { |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 576 | long res; |
Brett Cannon | 77b2abd | 2012-07-09 16:09:00 -0400 | [diff] [blame] | 577 | PyInterpreterState *interp = PyThreadState_Get()->interp; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 578 | PyObject *external, *pyc_magic; |
| 579 | |
| 580 | external = PyObject_GetAttrString(interp->importlib, "_bootstrap_external"); |
| 581 | if (external == NULL) |
| 582 | return -1; |
| 583 | pyc_magic = PyObject_GetAttrString(external, "_RAW_MAGIC_NUMBER"); |
| 584 | Py_DECREF(external); |
Brett Cannon | 77b2abd | 2012-07-09 16:09:00 -0400 | [diff] [blame] | 585 | if (pyc_magic == NULL) |
| 586 | return -1; |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 587 | res = PyLong_AsLong(pyc_magic); |
Benjamin Peterson | 66f3659 | 2012-07-09 22:21:55 -0700 | [diff] [blame] | 588 | Py_DECREF(pyc_magic); |
| 589 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 590 | } |
| 591 | |
| 592 | |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 593 | extern const char * _PySys_ImplCacheTag; |
| 594 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 595 | const char * |
| 596 | PyImport_GetMagicTag(void) |
| 597 | { |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 598 | return _PySys_ImplCacheTag; |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 599 | } |
| 600 | |
Brett Cannon | 98979b8 | 2012-07-02 15:13:11 -0400 | [diff] [blame] | 601 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 602 | /* Magic for extension modules (built-in as well as dynamically |
| 603 | loaded). To prevent initializing an extension module more than |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 604 | once, we keep a static dictionary 'extensions' keyed by the tuple |
| 605 | (module name, module name) (for built-in modules) or by |
| 606 | (filename, module name) (for dynamically loaded modules), containing these |
| 607 | modules. A copy of the module's dictionary is stored by calling |
| 608 | _PyImport_FixupExtensionObject() immediately after the module initialization |
| 609 | function succeeds. A copy can be retrieved from there by calling |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 610 | _PyImport_FindExtensionObject(). |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 611 | |
Barry Warsaw | 7c9627b | 2010-06-17 18:38:20 +0000 | [diff] [blame] | 612 | Modules which do support multiple initialization set their m_size |
| 613 | field to a non-negative number (indicating the size of the |
| 614 | module-specific state). They are still recorded in the extensions |
| 615 | dictionary, to avoid loading shared libraries twice. |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 616 | */ |
| 617 | |
| 618 | int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 619 | _PyImport_FixupExtensionObject(PyObject *mod, PyObject *name, |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 620 | PyObject *filename, PyObject *modules) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 621 | { |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 622 | PyObject *dict, *key; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 623 | struct PyModuleDef *def; |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 624 | int res; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 625 | if (extensions == NULL) { |
| 626 | extensions = PyDict_New(); |
| 627 | if (extensions == NULL) |
| 628 | return -1; |
| 629 | } |
| 630 | if (mod == NULL || !PyModule_Check(mod)) { |
| 631 | PyErr_BadInternalCall(); |
| 632 | return -1; |
| 633 | } |
| 634 | def = PyModule_GetDef(mod); |
| 635 | if (!def) { |
| 636 | PyErr_BadInternalCall(); |
| 637 | return -1; |
| 638 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 639 | if (PyObject_SetItem(modules, name, mod) < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 640 | return -1; |
| 641 | if (_PyState_AddModule(mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 642 | PyMapping_DelItem(modules, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 643 | return -1; |
| 644 | } |
| 645 | if (def->m_size == -1) { |
| 646 | if (def->m_base.m_copy) { |
| 647 | /* Somebody already imported the module, |
| 648 | likely under a different name. |
| 649 | XXX this should really not happen. */ |
Serhiy Storchaka | 505ff75 | 2014-02-09 13:33:53 +0200 | [diff] [blame] | 650 | Py_CLEAR(def->m_base.m_copy); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 651 | } |
| 652 | dict = PyModule_GetDict(mod); |
| 653 | if (dict == NULL) |
| 654 | return -1; |
| 655 | def->m_base.m_copy = PyDict_Copy(dict); |
| 656 | if (def->m_base.m_copy == NULL) |
| 657 | return -1; |
| 658 | } |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 659 | key = PyTuple_Pack(2, filename, name); |
| 660 | if (key == NULL) |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 661 | return -1; |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 662 | res = PyDict_SetItem(extensions, key, (PyObject *)def); |
| 663 | Py_DECREF(key); |
| 664 | if (res < 0) |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 665 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 666 | return 0; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 667 | } |
| 668 | |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 669 | int |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 670 | _PyImport_FixupBuiltin(PyObject *mod, const char *name, PyObject *modules) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 671 | { |
| 672 | int res; |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 673 | PyObject *nameobj; |
Victor Stinner | 21fcd0c | 2011-03-07 18:28:15 +0100 | [diff] [blame] | 674 | nameobj = PyUnicode_InternFromString(name); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 675 | if (nameobj == NULL) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 676 | return -1; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 677 | res = _PyImport_FixupExtensionObject(mod, nameobj, nameobj, modules); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 678 | Py_DECREF(nameobj); |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 679 | return res; |
| 680 | } |
| 681 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 682 | PyObject * |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 683 | _PyImport_FindExtensionObject(PyObject *name, PyObject *filename) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 684 | { |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 685 | PyObject *modules = PyImport_GetModuleDict(); |
| 686 | return _PyImport_FindExtensionObjectEx(name, filename, modules); |
| 687 | } |
| 688 | |
| 689 | PyObject * |
| 690 | _PyImport_FindExtensionObjectEx(PyObject *name, PyObject *filename, |
| 691 | PyObject *modules) |
| 692 | { |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 693 | PyObject *mod, *mdict, *key; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 694 | PyModuleDef* def; |
| 695 | if (extensions == NULL) |
| 696 | return NULL; |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 697 | key = PyTuple_Pack(2, filename, name); |
| 698 | if (key == NULL) |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 699 | return NULL; |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 700 | def = (PyModuleDef *)PyDict_GetItem(extensions, key); |
| 701 | Py_DECREF(key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 702 | if (def == NULL) |
| 703 | return NULL; |
| 704 | if (def->m_size == -1) { |
| 705 | /* Module does not support repeated initialization */ |
| 706 | if (def->m_base.m_copy == NULL) |
| 707 | return NULL; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 708 | mod = _PyImport_AddModuleObject(name, modules); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 709 | if (mod == NULL) |
| 710 | return NULL; |
| 711 | mdict = PyModule_GetDict(mod); |
| 712 | if (mdict == NULL) |
| 713 | return NULL; |
| 714 | if (PyDict_Update(mdict, def->m_base.m_copy)) |
| 715 | return NULL; |
| 716 | } |
| 717 | else { |
| 718 | if (def->m_base.m_init == NULL) |
| 719 | return NULL; |
| 720 | mod = def->m_base.m_init(); |
| 721 | if (mod == NULL) |
| 722 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 723 | if (PyObject_SetItem(modules, name, mod) == -1) { |
Christian Heimes | 09ca794 | 2013-07-20 14:51:53 +0200 | [diff] [blame] | 724 | Py_DECREF(mod); |
| 725 | return NULL; |
| 726 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 727 | Py_DECREF(mod); |
| 728 | } |
| 729 | if (_PyState_AddModule(mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 730 | PyMapping_DelItem(modules, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 731 | Py_DECREF(mod); |
| 732 | return NULL; |
| 733 | } |
| 734 | if (Py_VerboseFlag) |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 735 | PySys_FormatStderr("import %U # previously loaded (%R)\n", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 736 | name, filename); |
| 737 | return mod; |
Brett Cannon | 9a5b25a | 2010-03-01 02:09:17 +0000 | [diff] [blame] | 738 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 739 | } |
| 740 | |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 741 | PyObject * |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 742 | _PyImport_FindBuiltin(const char *name, PyObject *modules) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 743 | { |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 744 | PyObject *res, *nameobj; |
Victor Stinner | 21fcd0c | 2011-03-07 18:28:15 +0100 | [diff] [blame] | 745 | nameobj = PyUnicode_InternFromString(name); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 746 | if (nameobj == NULL) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 747 | return NULL; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 748 | res = _PyImport_FindExtensionObjectEx(nameobj, nameobj, modules); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 749 | Py_DECREF(nameobj); |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 750 | return res; |
| 751 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 752 | |
| 753 | /* Get the module object corresponding to a module name. |
| 754 | First check the modules dictionary if there's one there, |
Walter Dörwald | f0dfc7a | 2003-10-20 14:01:56 +0000 | [diff] [blame] | 755 | if not, create a new one and insert it in the modules dictionary. |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 756 | Because the former action is most common, THIS DOES NOT RETURN A |
| 757 | 'NEW' REFERENCE! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 758 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 759 | PyObject * |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 760 | PyImport_AddModuleObject(PyObject *name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 761 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 762 | PyObject *modules = PyImport_GetModuleDict(); |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 763 | return _PyImport_AddModuleObject(name, modules); |
| 764 | } |
| 765 | |
| 766 | PyObject * |
| 767 | _PyImport_AddModuleObject(PyObject *name, PyObject *modules) |
| 768 | { |
Eric Snow | 86b7afd | 2017-09-04 17:54:09 -0600 | [diff] [blame] | 769 | PyObject *m; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 770 | if (PyDict_CheckExact(modules)) { |
| 771 | m = PyDict_GetItemWithError(modules, name); |
| 772 | } |
| 773 | else { |
| 774 | m = PyObject_GetItem(modules, name); |
| 775 | // For backward-comaptibility we copy the behavior |
| 776 | // of PyDict_GetItemWithError(). |
| 777 | if (PyErr_ExceptionMatches(PyExc_KeyError)) { |
| 778 | PyErr_Clear(); |
| 779 | } |
Serhiy Storchaka | 48a583b | 2016-02-10 10:31:20 +0200 | [diff] [blame] | 780 | } |
| 781 | if (PyErr_Occurred()) { |
| 782 | return NULL; |
| 783 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 784 | if (m != NULL && PyModule_Check(m)) { |
| 785 | return m; |
| 786 | } |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 787 | m = PyModule_NewObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 788 | if (m == NULL) |
| 789 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 790 | if (PyObject_SetItem(modules, name, m) != 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 791 | Py_DECREF(m); |
| 792 | return NULL; |
| 793 | } |
| 794 | Py_DECREF(m); /* Yes, it still exists, in modules! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 795 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 796 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 797 | } |
| 798 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 799 | PyObject * |
| 800 | PyImport_AddModule(const char *name) |
| 801 | { |
| 802 | PyObject *nameobj, *module; |
| 803 | nameobj = PyUnicode_FromString(name); |
| 804 | if (nameobj == NULL) |
| 805 | return NULL; |
| 806 | module = PyImport_AddModuleObject(nameobj); |
| 807 | Py_DECREF(nameobj); |
| 808 | return module; |
| 809 | } |
| 810 | |
| 811 | |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 812 | /* Remove name from sys.modules, if it's there. */ |
| 813 | static void |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 814 | remove_module(PyObject *name) |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 815 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 816 | PyObject *modules = PyImport_GetModuleDict(); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 817 | if (PyMapping_DelItem(modules, name) < 0) { |
| 818 | if (!PyMapping_HasKey(modules, name)) { |
| 819 | return; |
| 820 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 821 | Py_FatalError("import: deleting existing key in" |
| 822 | "sys.modules failed"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 823 | } |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 824 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 825 | |
Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 826 | |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 827 | /* Execute a code object in a module and return the module object |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 828 | * WITH INCREMENTED REFERENCE COUNT. If an error occurs, name is |
| 829 | * removed from sys.modules, to avoid leaving damaged module objects |
| 830 | * in sys.modules. The caller may wish to restore the original |
| 831 | * module object (if any) in this case; PyImport_ReloadModule is an |
| 832 | * example. |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 833 | * |
| 834 | * Note that PyImport_ExecCodeModuleWithPathnames() is the preferred, richer |
| 835 | * interface. The other two exist primarily for backward compatibility. |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 836 | */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 837 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 838 | PyImport_ExecCodeModule(const char *name, PyObject *co) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 839 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 840 | return PyImport_ExecCodeModuleWithPathnames( |
| 841 | name, co, (char *)NULL, (char *)NULL); |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 842 | } |
| 843 | |
| 844 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 845 | PyImport_ExecCodeModuleEx(const char *name, PyObject *co, const char *pathname) |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 846 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 847 | return PyImport_ExecCodeModuleWithPathnames( |
| 848 | name, co, pathname, (char *)NULL); |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 849 | } |
| 850 | |
| 851 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 852 | PyImport_ExecCodeModuleWithPathnames(const char *name, PyObject *co, |
| 853 | const char *pathname, |
| 854 | const char *cpathname) |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 855 | { |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 856 | PyObject *m = NULL; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 857 | PyObject *nameobj, *pathobj = NULL, *cpathobj = NULL, *external= NULL; |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 858 | |
| 859 | nameobj = PyUnicode_FromString(name); |
| 860 | if (nameobj == NULL) |
| 861 | return NULL; |
| 862 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 863 | if (cpathname != NULL) { |
| 864 | cpathobj = PyUnicode_DecodeFSDefault(cpathname); |
| 865 | if (cpathobj == NULL) |
| 866 | goto error; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 867 | } |
| 868 | else |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 869 | cpathobj = NULL; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 870 | |
| 871 | if (pathname != NULL) { |
| 872 | pathobj = PyUnicode_DecodeFSDefault(pathname); |
| 873 | if (pathobj == NULL) |
| 874 | goto error; |
| 875 | } |
| 876 | else if (cpathobj != NULL) { |
| 877 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
| 878 | _Py_IDENTIFIER(_get_sourcefile); |
| 879 | |
| 880 | if (interp == NULL) { |
| 881 | Py_FatalError("PyImport_ExecCodeModuleWithPathnames: " |
| 882 | "no interpreter!"); |
| 883 | } |
| 884 | |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 885 | external= PyObject_GetAttrString(interp->importlib, |
| 886 | "_bootstrap_external"); |
| 887 | if (external != NULL) { |
| 888 | pathobj = _PyObject_CallMethodIdObjArgs(external, |
| 889 | &PyId__get_sourcefile, cpathobj, |
| 890 | NULL); |
| 891 | Py_DECREF(external); |
| 892 | } |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 893 | if (pathobj == NULL) |
| 894 | PyErr_Clear(); |
| 895 | } |
| 896 | else |
| 897 | pathobj = NULL; |
| 898 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 899 | m = PyImport_ExecCodeModuleObject(nameobj, co, pathobj, cpathobj); |
| 900 | error: |
| 901 | Py_DECREF(nameobj); |
| 902 | Py_XDECREF(pathobj); |
| 903 | Py_XDECREF(cpathobj); |
| 904 | return m; |
| 905 | } |
| 906 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 907 | static PyObject * |
| 908 | module_dict_for_exec(PyObject *name) |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 909 | { |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 910 | PyObject *m, *d = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 911 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 912 | m = PyImport_AddModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | if (m == NULL) |
| 914 | return NULL; |
| 915 | /* If the module is being reloaded, we get the old module back |
| 916 | and re-use its dict to exec the new code. */ |
| 917 | d = PyModule_GetDict(m); |
| 918 | if (PyDict_GetItemString(d, "__builtins__") == NULL) { |
| 919 | if (PyDict_SetItemString(d, "__builtins__", |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 920 | PyEval_GetBuiltins()) != 0) { |
| 921 | remove_module(name); |
| 922 | return NULL; |
| 923 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 924 | } |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 925 | |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 926 | return d; /* Return a borrowed reference. */ |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | static PyObject * |
| 930 | exec_code_in_module(PyObject *name, PyObject *module_dict, PyObject *code_object) |
| 931 | { |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 932 | PyObject *v, *m; |
| 933 | |
| 934 | v = PyEval_EvalCode(code_object, module_dict, module_dict); |
| 935 | if (v == NULL) { |
| 936 | remove_module(name); |
| 937 | return NULL; |
| 938 | } |
| 939 | Py_DECREF(v); |
| 940 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 941 | m = PyImport_GetModule(name); |
| 942 | if (m == NULL) { |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 943 | PyErr_Format(PyExc_ImportError, |
| 944 | "Loaded module %R not found in sys.modules", |
| 945 | name); |
| 946 | return NULL; |
| 947 | } |
| 948 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 949 | return m; |
| 950 | } |
| 951 | |
| 952 | PyObject* |
| 953 | PyImport_ExecCodeModuleObject(PyObject *name, PyObject *co, PyObject *pathname, |
| 954 | PyObject *cpathname) |
| 955 | { |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 956 | PyObject *d, *external, *res; |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 957 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
| 958 | _Py_IDENTIFIER(_fix_up_module); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 959 | |
| 960 | d = module_dict_for_exec(name); |
| 961 | if (d == NULL) { |
| 962 | return NULL; |
| 963 | } |
| 964 | |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 965 | if (pathname == NULL) { |
| 966 | pathname = ((PyCodeObject *)co)->co_filename; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 967 | } |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 968 | external = PyObject_GetAttrString(interp->importlib, "_bootstrap_external"); |
| 969 | if (external == NULL) |
| 970 | return NULL; |
| 971 | res = _PyObject_CallMethodIdObjArgs(external, |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 972 | &PyId__fix_up_module, |
| 973 | d, name, pathname, cpathname, NULL); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 974 | Py_DECREF(external); |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 975 | if (res != NULL) { |
Eric Snow | 58cfdd8 | 2014-05-29 12:31:39 -0600 | [diff] [blame] | 976 | Py_DECREF(res); |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 977 | res = exec_code_in_module(name, d, co); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 978 | } |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 979 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 980 | } |
| 981 | |
| 982 | |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 983 | static void |
| 984 | update_code_filenames(PyCodeObject *co, PyObject *oldname, PyObject *newname) |
| 985 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 986 | PyObject *constants, *tmp; |
| 987 | Py_ssize_t i, n; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 988 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 989 | if (PyUnicode_Compare(co->co_filename, oldname)) |
| 990 | return; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 991 | |
Serhiy Storchaka | 576f132 | 2016-01-05 21:27:54 +0200 | [diff] [blame] | 992 | Py_INCREF(newname); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 993 | Py_XSETREF(co->co_filename, newname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 994 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 995 | constants = co->co_consts; |
| 996 | n = PyTuple_GET_SIZE(constants); |
| 997 | for (i = 0; i < n; i++) { |
| 998 | tmp = PyTuple_GET_ITEM(constants, i); |
| 999 | if (PyCode_Check(tmp)) |
| 1000 | update_code_filenames((PyCodeObject *)tmp, |
| 1001 | oldname, newname); |
| 1002 | } |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1003 | } |
| 1004 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1005 | static void |
| 1006 | update_compiled_module(PyCodeObject *co, PyObject *newname) |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1007 | { |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1008 | PyObject *oldname; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1009 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1010 | if (PyUnicode_Compare(co->co_filename, newname) == 0) |
| 1011 | return; |
Hirokazu Yamamoto | 4f447fb | 2009-03-04 01:52:10 +0000 | [diff] [blame] | 1012 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1013 | oldname = co->co_filename; |
| 1014 | Py_INCREF(oldname); |
| 1015 | update_code_filenames(co, oldname, newname); |
| 1016 | Py_DECREF(oldname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1017 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1018 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1019 | /*[clinic input] |
| 1020 | _imp._fix_co_filename |
| 1021 | |
| 1022 | code: object(type="PyCodeObject *", subclass_of="&PyCode_Type") |
| 1023 | Code object to change. |
| 1024 | |
| 1025 | path: unicode |
| 1026 | File path to use. |
| 1027 | / |
| 1028 | |
| 1029 | Changes code.co_filename to specify the passed-in file path. |
| 1030 | [clinic start generated code]*/ |
| 1031 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1032 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1033 | _imp__fix_co_filename_impl(PyObject *module, PyCodeObject *code, |
Larry Hastings | 89964c4 | 2015-04-14 18:07:59 -0400 | [diff] [blame] | 1034 | PyObject *path) |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1035 | /*[clinic end generated code: output=1d002f100235587d input=895ba50e78b82f05]*/ |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 1036 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1037 | { |
Brett Cannon | a6dec2e | 2014-01-10 07:43:55 -0500 | [diff] [blame] | 1038 | update_compiled_module(code, path); |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 1039 | |
| 1040 | Py_RETURN_NONE; |
| 1041 | } |
| 1042 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1043 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1044 | /* Forward */ |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1045 | static const struct _frozen * find_frozen(PyObject *); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1046 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1047 | |
| 1048 | /* Helper to test for built-in module */ |
| 1049 | |
| 1050 | static int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 1051 | is_builtin(PyObject *name) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1052 | { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1053 | int i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1054 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1055 | if (_PyUnicode_EqualToASCIIString(name, PyImport_Inittab[i].name)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1056 | if (PyImport_Inittab[i].initfunc == NULL) |
| 1057 | return -1; |
| 1058 | else |
| 1059 | return 1; |
| 1060 | } |
| 1061 | } |
| 1062 | return 0; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1063 | } |
| 1064 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1065 | |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 1066 | /* Return a finder object for a sys.path/pkg.__path__ item 'p', |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1067 | possibly by fetching it from the path_importer_cache dict. If it |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1068 | wasn't yet cached, traverse path_hooks until a hook is found |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1069 | that can handle the path item. Return None if no hook could; |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 1070 | this tells our caller that the path based finder could not find |
| 1071 | a finder for this path item. Cache the result in |
| 1072 | path_importer_cache. |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1073 | Returns a borrowed reference. */ |
| 1074 | |
| 1075 | static PyObject * |
| 1076 | get_path_importer(PyObject *path_importer_cache, PyObject *path_hooks, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1077 | PyObject *p) |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1078 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1079 | PyObject *importer; |
| 1080 | Py_ssize_t j, nhooks; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1081 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1082 | /* These conditions are the caller's responsibility: */ |
| 1083 | assert(PyList_Check(path_hooks)); |
| 1084 | assert(PyDict_Check(path_importer_cache)); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1085 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1086 | nhooks = PyList_Size(path_hooks); |
| 1087 | if (nhooks < 0) |
| 1088 | return NULL; /* Shouldn't happen */ |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1089 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1090 | importer = PyDict_GetItem(path_importer_cache, p); |
| 1091 | if (importer != NULL) |
| 1092 | return importer; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1093 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1094 | /* set path_importer_cache[p] to None to avoid recursion */ |
| 1095 | if (PyDict_SetItem(path_importer_cache, p, Py_None) != 0) |
| 1096 | return NULL; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1097 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1098 | for (j = 0; j < nhooks; j++) { |
| 1099 | PyObject *hook = PyList_GetItem(path_hooks, j); |
| 1100 | if (hook == NULL) |
| 1101 | return NULL; |
Victor Stinner | de4ae3d | 2016-12-04 22:59:09 +0100 | [diff] [blame] | 1102 | importer = PyObject_CallFunctionObjArgs(hook, p, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1103 | if (importer != NULL) |
| 1104 | break; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1105 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1106 | if (!PyErr_ExceptionMatches(PyExc_ImportError)) { |
| 1107 | return NULL; |
| 1108 | } |
| 1109 | PyErr_Clear(); |
| 1110 | } |
| 1111 | if (importer == NULL) { |
Brett Cannon | aa93642 | 2012-04-27 15:30:58 -0400 | [diff] [blame] | 1112 | return Py_None; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1113 | } |
| 1114 | if (importer != NULL) { |
| 1115 | int err = PyDict_SetItem(path_importer_cache, p, importer); |
| 1116 | Py_DECREF(importer); |
| 1117 | if (err != 0) |
| 1118 | return NULL; |
| 1119 | } |
| 1120 | return importer; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1121 | } |
| 1122 | |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 1123 | PyAPI_FUNC(PyObject *) |
| 1124 | PyImport_GetImporter(PyObject *path) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1125 | PyObject *importer=NULL, *path_importer_cache=NULL, *path_hooks=NULL; |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 1126 | |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 1127 | path_importer_cache = PySys_GetObject("path_importer_cache"); |
| 1128 | path_hooks = PySys_GetObject("path_hooks"); |
| 1129 | if (path_importer_cache != NULL && path_hooks != NULL) { |
| 1130 | importer = get_path_importer(path_importer_cache, |
| 1131 | path_hooks, path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1132 | } |
| 1133 | Py_XINCREF(importer); /* get_path_importer returns a borrowed reference */ |
| 1134 | return importer; |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 1135 | } |
| 1136 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1137 | /*[clinic input] |
| 1138 | _imp.create_builtin |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1139 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1140 | spec: object |
| 1141 | / |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1142 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1143 | Create an extension module. |
| 1144 | [clinic start generated code]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1145 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1146 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1147 | _imp_create_builtin(PyObject *module, PyObject *spec) |
| 1148 | /*[clinic end generated code: output=ace7ff22271e6f39 input=37f966f890384e47]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1149 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1150 | struct _inittab *p; |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1151 | PyObject *name; |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 1152 | const char *namestr; |
Victor Stinner | 5eb4f59 | 2013-11-14 22:38:52 +0100 | [diff] [blame] | 1153 | PyObject *mod; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1154 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1155 | name = PyObject_GetAttrString(spec, "name"); |
| 1156 | if (name == NULL) { |
| 1157 | return NULL; |
| 1158 | } |
| 1159 | |
Victor Stinner | 5eb4f59 | 2013-11-14 22:38:52 +0100 | [diff] [blame] | 1160 | mod = _PyImport_FindExtensionObject(name, name); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1161 | if (mod || PyErr_Occurred()) { |
| 1162 | Py_DECREF(name); |
Raymond Hettinger | f0afe77 | 2016-08-31 08:44:11 -0700 | [diff] [blame] | 1163 | Py_XINCREF(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1164 | return mod; |
| 1165 | } |
| 1166 | |
| 1167 | namestr = PyUnicode_AsUTF8(name); |
| 1168 | if (namestr == NULL) { |
| 1169 | Py_DECREF(name); |
| 1170 | return NULL; |
| 1171 | } |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1172 | |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 1173 | PyObject *modules = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1174 | for (p = PyImport_Inittab; p->name != NULL; p++) { |
Antoine Pitrou | 6c40eb7 | 2012-01-18 20:16:09 +0100 | [diff] [blame] | 1175 | PyModuleDef *def; |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1176 | if (_PyUnicode_EqualToASCIIString(name, p->name)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1177 | if (p->initfunc == NULL) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1178 | /* Cannot re-init internal module ("sys" or "builtins") */ |
| 1179 | mod = PyImport_AddModule(namestr); |
| 1180 | Py_DECREF(name); |
| 1181 | return mod; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1182 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1183 | mod = (*p->initfunc)(); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1184 | if (mod == NULL) { |
| 1185 | Py_DECREF(name); |
| 1186 | return NULL; |
| 1187 | } |
| 1188 | if (PyObject_TypeCheck(mod, &PyModuleDef_Type)) { |
| 1189 | Py_DECREF(name); |
| 1190 | return PyModule_FromDefAndSpec((PyModuleDef*)mod, spec); |
| 1191 | } else { |
| 1192 | /* Remember pointer to module init function. */ |
| 1193 | def = PyModule_GetDef(mod); |
Christian Heimes | a78b627 | 2016-09-09 00:25:03 +0200 | [diff] [blame] | 1194 | if (def == NULL) { |
| 1195 | Py_DECREF(name); |
| 1196 | return NULL; |
| 1197 | } |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1198 | def->m_base.m_init = p->initfunc; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 1199 | if (modules == NULL) { |
| 1200 | modules = PyImport_GetModuleDict(); |
| 1201 | } |
| 1202 | if (_PyImport_FixupExtensionObject(mod, name, name, |
| 1203 | modules) < 0) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1204 | Py_DECREF(name); |
| 1205 | return NULL; |
| 1206 | } |
| 1207 | Py_DECREF(name); |
| 1208 | return mod; |
| 1209 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1210 | } |
| 1211 | } |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1212 | Py_DECREF(name); |
| 1213 | Py_RETURN_NONE; |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1214 | } |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1215 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1216 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1217 | /* Frozen modules */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1218 | |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1219 | static const struct _frozen * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1220 | find_frozen(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1221 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1222 | const struct _frozen *p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1223 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1224 | if (name == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1225 | return NULL; |
Benjamin Peterson | d968e27 | 2008-11-05 22:48:33 +0000 | [diff] [blame] | 1226 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1227 | for (p = PyImport_FrozenModules; ; p++) { |
| 1228 | if (p->name == NULL) |
| 1229 | return NULL; |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1230 | if (_PyUnicode_EqualToASCIIString(name, p->name)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1231 | break; |
| 1232 | } |
| 1233 | return p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1234 | } |
| 1235 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1236 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1237 | get_frozen_object(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1238 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1239 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1240 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1241 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1242 | if (p == NULL) { |
| 1243 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1244 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1245 | name); |
| 1246 | return NULL; |
| 1247 | } |
| 1248 | if (p->code == NULL) { |
| 1249 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1250 | "Excluded frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1251 | name); |
| 1252 | return NULL; |
| 1253 | } |
| 1254 | size = p->size; |
| 1255 | if (size < 0) |
| 1256 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1257 | return PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1258 | } |
| 1259 | |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1260 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1261 | is_frozen_package(PyObject *name) |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1262 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1263 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1264 | int size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1265 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1266 | if (p == NULL) { |
| 1267 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1268 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1269 | name); |
| 1270 | return NULL; |
| 1271 | } |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1272 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1273 | size = p->size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1274 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1275 | if (size < 0) |
| 1276 | Py_RETURN_TRUE; |
| 1277 | else |
| 1278 | Py_RETURN_FALSE; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1279 | } |
| 1280 | |
| 1281 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1282 | /* Initialize a frozen module. |
Brett Cannon | 3c2ac44 | 2009-03-08 20:49:47 +0000 | [diff] [blame] | 1283 | Return 1 for success, 0 if the module is not found, and -1 with |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1284 | an exception set if the initialization failed. |
| 1285 | This function is also used from frozenmain.c */ |
Guido van Rossum | 0b34490 | 1995-02-07 15:35:27 +0000 | [diff] [blame] | 1286 | |
| 1287 | int |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1288 | PyImport_ImportFrozenModuleObject(PyObject *name) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1289 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1290 | const struct _frozen *p; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1291 | PyObject *co, *m, *d; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1292 | int ispackage; |
| 1293 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1294 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1295 | p = find_frozen(name); |
| 1296 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1297 | if (p == NULL) |
| 1298 | return 0; |
| 1299 | if (p->code == NULL) { |
| 1300 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1301 | "Excluded frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1302 | name); |
| 1303 | return -1; |
| 1304 | } |
| 1305 | size = p->size; |
| 1306 | ispackage = (size < 0); |
| 1307 | if (ispackage) |
| 1308 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1309 | co = PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1310 | if (co == NULL) |
| 1311 | return -1; |
| 1312 | if (!PyCode_Check(co)) { |
| 1313 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1314 | "frozen object %R is not a code object", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1315 | name); |
| 1316 | goto err_return; |
| 1317 | } |
| 1318 | if (ispackage) { |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1319 | /* Set __path__ to the empty list */ |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1320 | PyObject *l; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1321 | int err; |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1322 | m = PyImport_AddModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1323 | if (m == NULL) |
| 1324 | goto err_return; |
| 1325 | d = PyModule_GetDict(m); |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1326 | l = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1327 | if (l == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1328 | goto err_return; |
| 1329 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1330 | err = PyDict_SetItemString(d, "__path__", l); |
| 1331 | Py_DECREF(l); |
| 1332 | if (err != 0) |
| 1333 | goto err_return; |
| 1334 | } |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1335 | d = module_dict_for_exec(name); |
| 1336 | if (d == NULL) { |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1337 | goto err_return; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1338 | } |
| 1339 | m = exec_code_in_module(name, d, co); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1340 | if (m == NULL) |
| 1341 | goto err_return; |
| 1342 | Py_DECREF(co); |
| 1343 | Py_DECREF(m); |
| 1344 | return 1; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1345 | err_return: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1346 | Py_DECREF(co); |
| 1347 | return -1; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1348 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1349 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1350 | int |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1351 | PyImport_ImportFrozenModule(const char *name) |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1352 | { |
| 1353 | PyObject *nameobj; |
| 1354 | int ret; |
| 1355 | nameobj = PyUnicode_InternFromString(name); |
| 1356 | if (nameobj == NULL) |
| 1357 | return -1; |
| 1358 | ret = PyImport_ImportFrozenModuleObject(nameobj); |
| 1359 | Py_DECREF(nameobj); |
| 1360 | return ret; |
| 1361 | } |
| 1362 | |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1363 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1364 | /* Import a module, either built-in, frozen, or external, and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 1365 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1366 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1367 | PyObject * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1368 | PyImport_ImportModule(const char *name) |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1369 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1370 | PyObject *pname; |
| 1371 | PyObject *result; |
Marc-André Lemburg | 3c61c35 | 2001-02-09 19:40:15 +0000 | [diff] [blame] | 1372 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1373 | pname = PyUnicode_FromString(name); |
| 1374 | if (pname == NULL) |
| 1375 | return NULL; |
| 1376 | result = PyImport_Import(pname); |
| 1377 | Py_DECREF(pname); |
| 1378 | return result; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1379 | } |
| 1380 | |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1381 | /* Import a module without blocking |
| 1382 | * |
| 1383 | * At first it tries to fetch the module from sys.modules. If the module was |
| 1384 | * never loaded before it loads it with PyImport_ImportModule() unless another |
| 1385 | * thread holds the import lock. In the latter case the function raises an |
| 1386 | * ImportError instead of blocking. |
| 1387 | * |
| 1388 | * Returns the module object with incremented ref count. |
| 1389 | */ |
| 1390 | PyObject * |
| 1391 | PyImport_ImportModuleNoBlock(const char *name) |
| 1392 | { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1393 | return PyImport_ImportModule(name); |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1394 | } |
| 1395 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1396 | |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1397 | /* Remove importlib frames from the traceback, |
| 1398 | * except in Verbose mode. */ |
| 1399 | static void |
| 1400 | remove_importlib_frames(void) |
| 1401 | { |
| 1402 | const char *importlib_filename = "<frozen importlib._bootstrap>"; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1403 | const char *external_filename = "<frozen importlib._bootstrap_external>"; |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1404 | const char *remove_frames = "_call_with_frames_removed"; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1405 | int always_trim = 0; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1406 | int in_importlib = 0; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1407 | PyObject *exception, *value, *base_tb, *tb; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1408 | PyObject **prev_link, **outer_link = NULL; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1409 | |
| 1410 | /* Synopsis: if it's an ImportError, we trim all importlib chunks |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1411 | from the traceback. We always trim chunks |
| 1412 | which end with a call to "_call_with_frames_removed". */ |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1413 | |
| 1414 | PyErr_Fetch(&exception, &value, &base_tb); |
| 1415 | if (!exception || Py_VerboseFlag) |
| 1416 | goto done; |
| 1417 | if (PyType_IsSubtype((PyTypeObject *) exception, |
| 1418 | (PyTypeObject *) PyExc_ImportError)) |
| 1419 | always_trim = 1; |
| 1420 | |
| 1421 | prev_link = &base_tb; |
| 1422 | tb = base_tb; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1423 | while (tb != NULL) { |
| 1424 | PyTracebackObject *traceback = (PyTracebackObject *)tb; |
| 1425 | PyObject *next = (PyObject *) traceback->tb_next; |
| 1426 | PyFrameObject *frame = traceback->tb_frame; |
| 1427 | PyCodeObject *code = frame->f_code; |
| 1428 | int now_in_importlib; |
| 1429 | |
| 1430 | assert(PyTraceBack_Check(tb)); |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1431 | now_in_importlib = _PyUnicode_EqualToASCIIString(code->co_filename, importlib_filename) || |
| 1432 | _PyUnicode_EqualToASCIIString(code->co_filename, external_filename); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1433 | if (now_in_importlib && !in_importlib) { |
| 1434 | /* This is the link to this chunk of importlib tracebacks */ |
| 1435 | outer_link = prev_link; |
| 1436 | } |
| 1437 | in_importlib = now_in_importlib; |
| 1438 | |
| 1439 | if (in_importlib && |
| 1440 | (always_trim || |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1441 | _PyUnicode_EqualToASCIIString(code->co_name, remove_frames))) { |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1442 | Py_XINCREF(next); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 1443 | Py_XSETREF(*outer_link, next); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1444 | prev_link = outer_link; |
| 1445 | } |
| 1446 | else { |
| 1447 | prev_link = (PyObject **) &traceback->tb_next; |
| 1448 | } |
| 1449 | tb = next; |
| 1450 | } |
| 1451 | done: |
| 1452 | PyErr_Restore(exception, value, base_tb); |
| 1453 | } |
| 1454 | |
| 1455 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1456 | static PyObject * |
| 1457 | resolve_name(PyObject *name, PyObject *globals, int level) |
Thomas Wouters | f7f438b | 2006-02-28 16:09:29 +0000 | [diff] [blame] | 1458 | { |
Eric Snow | b523f84 | 2013-11-22 09:05:39 -0700 | [diff] [blame] | 1459 | _Py_IDENTIFIER(__spec__); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1460 | _Py_IDENTIFIER(__package__); |
| 1461 | _Py_IDENTIFIER(__path__); |
| 1462 | _Py_IDENTIFIER(__name__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1463 | _Py_IDENTIFIER(parent); |
| 1464 | PyObject *abs_name; |
| 1465 | PyObject *package = NULL; |
| 1466 | PyObject *spec; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1467 | Py_ssize_t last_dot; |
| 1468 | PyObject *base; |
| 1469 | int level_up; |
| 1470 | |
| 1471 | if (globals == NULL) { |
| 1472 | PyErr_SetString(PyExc_KeyError, "'__name__' not in globals"); |
| 1473 | goto error; |
| 1474 | } |
| 1475 | if (!PyDict_Check(globals)) { |
| 1476 | PyErr_SetString(PyExc_TypeError, "globals must be a dict"); |
| 1477 | goto error; |
| 1478 | } |
| 1479 | package = _PyDict_GetItemId(globals, &PyId___package__); |
| 1480 | if (package == Py_None) { |
| 1481 | package = NULL; |
| 1482 | } |
| 1483 | spec = _PyDict_GetItemId(globals, &PyId___spec__); |
| 1484 | |
| 1485 | if (package != NULL) { |
| 1486 | Py_INCREF(package); |
| 1487 | if (!PyUnicode_Check(package)) { |
| 1488 | PyErr_SetString(PyExc_TypeError, "package must be a string"); |
| 1489 | goto error; |
| 1490 | } |
| 1491 | else if (spec != NULL && spec != Py_None) { |
| 1492 | int equal; |
| 1493 | PyObject *parent = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1494 | if (parent == NULL) { |
| 1495 | goto error; |
| 1496 | } |
| 1497 | |
| 1498 | equal = PyObject_RichCompareBool(package, parent, Py_EQ); |
| 1499 | Py_DECREF(parent); |
| 1500 | if (equal < 0) { |
| 1501 | goto error; |
| 1502 | } |
| 1503 | else if (equal == 0) { |
| 1504 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1505 | "__package__ != __spec__.parent", 1) < 0) { |
| 1506 | goto error; |
| 1507 | } |
| 1508 | } |
| 1509 | } |
| 1510 | } |
| 1511 | else if (spec != NULL && spec != Py_None) { |
| 1512 | package = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1513 | if (package == NULL) { |
| 1514 | goto error; |
| 1515 | } |
| 1516 | else if (!PyUnicode_Check(package)) { |
| 1517 | PyErr_SetString(PyExc_TypeError, |
| 1518 | "__spec__.parent must be a string"); |
| 1519 | goto error; |
| 1520 | } |
| 1521 | } |
| 1522 | else { |
| 1523 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1524 | "can't resolve package from __spec__ or __package__, " |
| 1525 | "falling back on __name__ and __path__", 1) < 0) { |
| 1526 | goto error; |
| 1527 | } |
| 1528 | |
| 1529 | package = _PyDict_GetItemId(globals, &PyId___name__); |
| 1530 | if (package == NULL) { |
| 1531 | PyErr_SetString(PyExc_KeyError, "'__name__' not in globals"); |
| 1532 | goto error; |
| 1533 | } |
| 1534 | |
| 1535 | Py_INCREF(package); |
| 1536 | if (!PyUnicode_Check(package)) { |
| 1537 | PyErr_SetString(PyExc_TypeError, "__name__ must be a string"); |
| 1538 | goto error; |
| 1539 | } |
| 1540 | |
| 1541 | if (_PyDict_GetItemId(globals, &PyId___path__) == NULL) { |
| 1542 | Py_ssize_t dot; |
| 1543 | |
| 1544 | if (PyUnicode_READY(package) < 0) { |
| 1545 | goto error; |
| 1546 | } |
| 1547 | |
| 1548 | dot = PyUnicode_FindChar(package, '.', |
| 1549 | 0, PyUnicode_GET_LENGTH(package), -1); |
| 1550 | if (dot == -2) { |
| 1551 | goto error; |
| 1552 | } |
| 1553 | |
| 1554 | if (dot >= 0) { |
| 1555 | PyObject *substr = PyUnicode_Substring(package, 0, dot); |
| 1556 | if (substr == NULL) { |
| 1557 | goto error; |
| 1558 | } |
| 1559 | Py_SETREF(package, substr); |
| 1560 | } |
| 1561 | } |
| 1562 | } |
| 1563 | |
| 1564 | last_dot = PyUnicode_GET_LENGTH(package); |
| 1565 | if (last_dot == 0) { |
| 1566 | PyErr_SetString(PyExc_ImportError, |
| 1567 | "attempted relative import with no known parent package"); |
| 1568 | goto error; |
| 1569 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1570 | |
| 1571 | for (level_up = 1; level_up < level; level_up += 1) { |
| 1572 | last_dot = PyUnicode_FindChar(package, '.', 0, last_dot, -1); |
| 1573 | if (last_dot == -2) { |
| 1574 | goto error; |
| 1575 | } |
| 1576 | else if (last_dot == -1) { |
| 1577 | PyErr_SetString(PyExc_ValueError, |
| 1578 | "attempted relative import beyond top-level " |
| 1579 | "package"); |
| 1580 | goto error; |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | base = PyUnicode_Substring(package, 0, last_dot); |
| 1585 | Py_DECREF(package); |
| 1586 | if (base == NULL || PyUnicode_GET_LENGTH(name) == 0) { |
| 1587 | return base; |
| 1588 | } |
| 1589 | |
| 1590 | abs_name = PyUnicode_FromFormat("%U.%U", base, name); |
| 1591 | Py_DECREF(base); |
| 1592 | return abs_name; |
| 1593 | |
| 1594 | error: |
| 1595 | Py_XDECREF(package); |
| 1596 | return NULL; |
| 1597 | } |
| 1598 | |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1599 | static PyObject * |
| 1600 | import_find_and_load(PyObject *abs_name) |
| 1601 | { |
| 1602 | _Py_IDENTIFIER(_find_and_load); |
| 1603 | PyObject *mod = NULL; |
| 1604 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
| 1605 | int import_time = interp->core_config.import_time; |
| 1606 | static int import_level; |
| 1607 | static _PyTime_t accumulated; |
| 1608 | |
| 1609 | _PyTime_t t1 = 0, accumulated_copy = accumulated; |
| 1610 | |
| 1611 | /* XOptions is initialized after first some imports. |
| 1612 | * So we can't have negative cache before completed initialization. |
| 1613 | * Anyway, importlib._find_and_load is much slower than |
| 1614 | * _PyDict_GetItemIdWithError(). |
| 1615 | */ |
| 1616 | if (import_time) { |
| 1617 | static int header = 1; |
| 1618 | if (header) { |
| 1619 | fputs("import time: self [us] | cumulative | imported package\n", |
| 1620 | stderr); |
| 1621 | header = 0; |
| 1622 | } |
| 1623 | |
| 1624 | import_level++; |
| 1625 | t1 = _PyTime_GetPerfCounter(); |
| 1626 | accumulated = 0; |
| 1627 | } |
| 1628 | |
| 1629 | if (PyDTrace_IMPORT_FIND_LOAD_START_ENABLED()) |
| 1630 | PyDTrace_IMPORT_FIND_LOAD_START(PyUnicode_AsUTF8(abs_name)); |
| 1631 | |
| 1632 | mod = _PyObject_CallMethodIdObjArgs(interp->importlib, |
| 1633 | &PyId__find_and_load, abs_name, |
| 1634 | interp->import_func, NULL); |
| 1635 | |
| 1636 | if (PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED()) |
| 1637 | PyDTrace_IMPORT_FIND_LOAD_DONE(PyUnicode_AsUTF8(abs_name), |
| 1638 | mod != NULL); |
| 1639 | |
| 1640 | if (import_time) { |
| 1641 | _PyTime_t cum = _PyTime_GetPerfCounter() - t1; |
| 1642 | |
| 1643 | import_level--; |
| 1644 | fprintf(stderr, "import time: %9ld | %10ld | %*s%s\n", |
| 1645 | (long)_PyTime_AsMicroseconds(cum - accumulated, _PyTime_ROUND_CEILING), |
| 1646 | (long)_PyTime_AsMicroseconds(cum, _PyTime_ROUND_CEILING), |
| 1647 | import_level*2, "", PyUnicode_AsUTF8(abs_name)); |
| 1648 | |
| 1649 | accumulated = accumulated_copy + cum; |
| 1650 | } |
| 1651 | |
| 1652 | return mod; |
| 1653 | } |
| 1654 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1655 | PyObject * |
| 1656 | PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals, |
| 1657 | PyObject *locals, PyObject *fromlist, |
| 1658 | int level) |
| 1659 | { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1660 | _Py_IDENTIFIER(_handle_fromlist); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1661 | PyObject *abs_name = NULL; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1662 | PyObject *final_mod = NULL; |
| 1663 | PyObject *mod = NULL; |
| 1664 | PyObject *package = NULL; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1665 | PyInterpreterState *interp = PyThreadState_GET()->interp; |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1666 | int has_from; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1667 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1668 | if (name == NULL) { |
| 1669 | PyErr_SetString(PyExc_ValueError, "Empty module name"); |
| 1670 | goto error; |
| 1671 | } |
| 1672 | |
| 1673 | /* The below code is importlib.__import__() & _gcd_import(), ported to C |
| 1674 | for added performance. */ |
| 1675 | |
| 1676 | if (!PyUnicode_Check(name)) { |
| 1677 | PyErr_SetString(PyExc_TypeError, "module name must be a string"); |
| 1678 | goto error; |
| 1679 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1680 | if (PyUnicode_READY(name) < 0) { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1681 | goto error; |
| 1682 | } |
| 1683 | if (level < 0) { |
| 1684 | PyErr_SetString(PyExc_ValueError, "level must be >= 0"); |
| 1685 | goto error; |
| 1686 | } |
Brett Cannon | 849113a | 2016-01-22 15:25:50 -0800 | [diff] [blame] | 1687 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1688 | if (level > 0) { |
| 1689 | abs_name = resolve_name(name, globals, level); |
| 1690 | if (abs_name == NULL) |
Brett Cannon | 9fa8126 | 2016-01-22 16:39:02 -0800 | [diff] [blame] | 1691 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1692 | } |
| 1693 | else { /* level == 0 */ |
| 1694 | if (PyUnicode_GET_LENGTH(name) == 0) { |
| 1695 | PyErr_SetString(PyExc_ValueError, "Empty module name"); |
| 1696 | goto error; |
| 1697 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1698 | abs_name = name; |
| 1699 | Py_INCREF(abs_name); |
| 1700 | } |
| 1701 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 1702 | mod = PyImport_GetModule(abs_name); |
Serhiy Storchaka | b4baace | 2017-07-06 08:09:03 +0300 | [diff] [blame] | 1703 | if (mod != NULL && mod != Py_None) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1704 | _Py_IDENTIFIER(__spec__); |
| 1705 | _Py_IDENTIFIER(_initializing); |
| 1706 | _Py_IDENTIFIER(_lock_unlock_module); |
Eric Snow | b523f84 | 2013-11-22 09:05:39 -0700 | [diff] [blame] | 1707 | PyObject *value = NULL; |
| 1708 | PyObject *spec; |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1709 | int initializing = 0; |
| 1710 | |
Antoine Pitrou | 0398985 | 2012-08-28 00:24:52 +0200 | [diff] [blame] | 1711 | /* Optimization: only call _bootstrap._lock_unlock_module() if |
Eric Snow | b523f84 | 2013-11-22 09:05:39 -0700 | [diff] [blame] | 1712 | __spec__._initializing is true. |
| 1713 | NOTE: because of this, initializing must be set *before* |
Antoine Pitrou | 0398985 | 2012-08-28 00:24:52 +0200 | [diff] [blame] | 1714 | stuffing the new module in sys.modules. |
| 1715 | */ |
Eric Snow | b523f84 | 2013-11-22 09:05:39 -0700 | [diff] [blame] | 1716 | spec = _PyObject_GetAttrId(mod, &PyId___spec__); |
| 1717 | if (spec != NULL) { |
| 1718 | value = _PyObject_GetAttrId(spec, &PyId__initializing); |
| 1719 | Py_DECREF(spec); |
| 1720 | } |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1721 | if (value == NULL) |
| 1722 | PyErr_Clear(); |
| 1723 | else { |
| 1724 | initializing = PyObject_IsTrue(value); |
| 1725 | Py_DECREF(value); |
| 1726 | if (initializing == -1) |
| 1727 | PyErr_Clear(); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1728 | if (initializing > 0) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1729 | value = _PyObject_CallMethodIdObjArgs(interp->importlib, |
| 1730 | &PyId__lock_unlock_module, abs_name, |
| 1731 | NULL); |
| 1732 | if (value == NULL) |
| 1733 | goto error; |
| 1734 | Py_DECREF(value); |
| 1735 | } |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1736 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1737 | } |
| 1738 | else { |
Neil Schemenauer | 11cc289 | 2017-12-07 16:24:59 -0800 | [diff] [blame] | 1739 | Py_XDECREF(mod); |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1740 | mod = import_find_and_load(abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1741 | if (mod == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1742 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1743 | } |
| 1744 | } |
| 1745 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1746 | has_from = 0; |
| 1747 | if (fromlist != NULL && fromlist != Py_None) { |
| 1748 | has_from = PyObject_IsTrue(fromlist); |
| 1749 | if (has_from < 0) |
| 1750 | goto error; |
| 1751 | } |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1752 | if (!has_from) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1753 | Py_ssize_t len = PyUnicode_GET_LENGTH(name); |
| 1754 | if (level == 0 || len > 0) { |
| 1755 | Py_ssize_t dot; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1756 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1757 | dot = PyUnicode_FindChar(name, '.', 0, len, 1); |
| 1758 | if (dot == -2) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1759 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1760 | } |
| 1761 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1762 | if (dot == -1) { |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1763 | /* No dot in module name, simple exit */ |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1764 | final_mod = mod; |
| 1765 | Py_INCREF(mod); |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1766 | goto error; |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1767 | } |
| 1768 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1769 | if (level == 0) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1770 | PyObject *front = PyUnicode_Substring(name, 0, dot); |
| 1771 | if (front == NULL) { |
| 1772 | goto error; |
| 1773 | } |
| 1774 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1775 | final_mod = PyImport_ImportModuleLevelObject(front, NULL, NULL, NULL, 0); |
Antoine Pitrou | b78174c | 2012-05-06 17:15:23 +0200 | [diff] [blame] | 1776 | Py_DECREF(front); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1777 | } |
| 1778 | else { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1779 | Py_ssize_t cut_off = len - dot; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1780 | Py_ssize_t abs_name_len = PyUnicode_GET_LENGTH(abs_name); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1781 | PyObject *to_return = PyUnicode_Substring(abs_name, 0, |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1782 | abs_name_len - cut_off); |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1783 | if (to_return == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1784 | goto error; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1785 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1786 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 1787 | final_mod = PyImport_GetModule(to_return); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1788 | Py_DECREF(to_return); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1789 | if (final_mod == NULL) { |
| 1790 | PyErr_Format(PyExc_KeyError, |
| 1791 | "%R not in sys.modules as expected", |
| 1792 | to_return); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1793 | goto error; |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1794 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1795 | } |
| 1796 | } |
| 1797 | else { |
| 1798 | final_mod = mod; |
| 1799 | Py_INCREF(mod); |
| 1800 | } |
| 1801 | } |
| 1802 | else { |
Alexandre Vassalotti | 865eaa1 | 2013-05-02 10:44:04 -0700 | [diff] [blame] | 1803 | final_mod = _PyObject_CallMethodIdObjArgs(interp->importlib, |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1804 | &PyId__handle_fromlist, mod, |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1805 | fromlist, interp->import_func, |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1806 | NULL); |
| 1807 | } |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1808 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1809 | error: |
| 1810 | Py_XDECREF(abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1811 | Py_XDECREF(mod); |
| 1812 | Py_XDECREF(package); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1813 | if (final_mod == NULL) |
| 1814 | remove_importlib_frames(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1815 | return final_mod; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 1816 | } |
| 1817 | |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1818 | PyObject * |
Benjamin Peterson | 04778a8 | 2011-05-25 09:29:00 -0500 | [diff] [blame] | 1819 | PyImport_ImportModuleLevel(const char *name, PyObject *globals, PyObject *locals, |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1820 | PyObject *fromlist, int level) |
| 1821 | { |
| 1822 | PyObject *nameobj, *mod; |
| 1823 | nameobj = PyUnicode_FromString(name); |
| 1824 | if (nameobj == NULL) |
| 1825 | return NULL; |
| 1826 | mod = PyImport_ImportModuleLevelObject(nameobj, globals, locals, |
| 1827 | fromlist, level); |
| 1828 | Py_DECREF(nameobj); |
| 1829 | return mod; |
| 1830 | } |
| 1831 | |
| 1832 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1833 | /* Re-import a module of any kind and return its module object, WITH |
| 1834 | INCREMENTED REFERENCE COUNT */ |
| 1835 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1836 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1837 | PyImport_ReloadModule(PyObject *m) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1838 | { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 1839 | _Py_IDENTIFIER(imp); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1840 | _Py_IDENTIFIER(reload); |
| 1841 | PyObject *reloaded_module = NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 1842 | PyObject *imp = _PyImport_GetModuleId(&PyId_imp); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1843 | if (imp == NULL) { |
| 1844 | imp = PyImport_ImportModule("imp"); |
| 1845 | if (imp == NULL) { |
| 1846 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1847 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1848 | } |
Victor Stinner | ad3c03b | 2011-03-14 09:21:33 -0400 | [diff] [blame] | 1849 | |
Victor Stinner | 55ba38a | 2016-12-09 16:09:30 +0100 | [diff] [blame] | 1850 | reloaded_module = _PyObject_CallMethodIdObjArgs(imp, &PyId_reload, m, NULL); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1851 | Py_DECREF(imp); |
| 1852 | return reloaded_module; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1853 | } |
| 1854 | |
| 1855 | |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1856 | /* Higher-level import emulator which emulates the "import" statement |
| 1857 | more accurately -- it invokes the __import__() function from the |
| 1858 | builtins of the current globals. This means that the import is |
| 1859 | done using whatever import hooks are installed in the current |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1860 | environment. |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 1861 | A dummy list ["__doc__"] is passed as the 4th argument so that |
Neal Norwitz | 80e7f27 | 2007-08-26 06:45:23 +0000 | [diff] [blame] | 1862 | e.g. PyImport_Import(PyUnicode_FromString("win32com.client.gencache")) |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 1863 | will return <module "gencache"> instead of <module "win32com">. */ |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1864 | |
| 1865 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1866 | PyImport_Import(PyObject *module_name) |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1867 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1868 | static PyObject *silly_list = NULL; |
| 1869 | static PyObject *builtins_str = NULL; |
| 1870 | static PyObject *import_str = NULL; |
| 1871 | PyObject *globals = NULL; |
| 1872 | PyObject *import = NULL; |
| 1873 | PyObject *builtins = NULL; |
| 1874 | PyObject *r = NULL; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1875 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1876 | /* Initialize constant string objects */ |
| 1877 | if (silly_list == NULL) { |
| 1878 | import_str = PyUnicode_InternFromString("__import__"); |
| 1879 | if (import_str == NULL) |
| 1880 | return NULL; |
| 1881 | builtins_str = PyUnicode_InternFromString("__builtins__"); |
| 1882 | if (builtins_str == NULL) |
| 1883 | return NULL; |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1884 | silly_list = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1885 | if (silly_list == NULL) |
| 1886 | return NULL; |
| 1887 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1888 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1889 | /* Get the builtins from current globals */ |
| 1890 | globals = PyEval_GetGlobals(); |
| 1891 | if (globals != NULL) { |
| 1892 | Py_INCREF(globals); |
| 1893 | builtins = PyObject_GetItem(globals, builtins_str); |
| 1894 | if (builtins == NULL) |
| 1895 | goto err; |
| 1896 | } |
| 1897 | else { |
| 1898 | /* No globals -- use standard builtins, and fake globals */ |
| 1899 | builtins = PyImport_ImportModuleLevel("builtins", |
| 1900 | NULL, NULL, NULL, 0); |
| 1901 | if (builtins == NULL) |
| 1902 | return NULL; |
| 1903 | globals = Py_BuildValue("{OO}", builtins_str, builtins); |
| 1904 | if (globals == NULL) |
| 1905 | goto err; |
| 1906 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1907 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1908 | /* Get the __import__ function from the builtins */ |
| 1909 | if (PyDict_Check(builtins)) { |
| 1910 | import = PyObject_GetItem(builtins, import_str); |
| 1911 | if (import == NULL) |
| 1912 | PyErr_SetObject(PyExc_KeyError, import_str); |
| 1913 | } |
| 1914 | else |
| 1915 | import = PyObject_GetAttr(builtins, import_str); |
| 1916 | if (import == NULL) |
| 1917 | goto err; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1918 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1919 | /* Call the __import__ function with the proper argument list |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1920 | Always use absolute import here. |
| 1921 | Calling for side-effect of import. */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1922 | r = PyObject_CallFunction(import, "OOOOi", module_name, globals, |
| 1923 | globals, silly_list, 0, NULL); |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1924 | if (r == NULL) |
| 1925 | goto err; |
| 1926 | Py_DECREF(r); |
| 1927 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 1928 | r = PyImport_GetModule(module_name); |
| 1929 | if (r == NULL && !PyErr_Occurred()) { |
Serhiy Storchaka | 145541c | 2017-06-15 20:54:38 +0300 | [diff] [blame] | 1930 | PyErr_SetObject(PyExc_KeyError, module_name); |
| 1931 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1932 | |
| 1933 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1934 | Py_XDECREF(globals); |
| 1935 | Py_XDECREF(builtins); |
| 1936 | Py_XDECREF(import); |
Tim Peters | 50d8d37 | 2001-02-28 05:34:27 +0000 | [diff] [blame] | 1937 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1938 | return r; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1939 | } |
| 1940 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1941 | /*[clinic input] |
| 1942 | _imp.extension_suffixes |
| 1943 | |
| 1944 | Returns the list of file suffixes used to identify extension modules. |
| 1945 | [clinic start generated code]*/ |
| 1946 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1947 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1948 | _imp_extension_suffixes_impl(PyObject *module) |
| 1949 | /*[clinic end generated code: output=0bf346e25a8f0cd3 input=ecdeeecfcb6f839e]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1950 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1951 | PyObject *list; |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1952 | const char *suffix; |
| 1953 | unsigned int index = 0; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1954 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1955 | list = PyList_New(0); |
| 1956 | if (list == NULL) |
| 1957 | return NULL; |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1958 | #ifdef HAVE_DYNAMIC_LOADING |
| 1959 | while ((suffix = _PyImport_DynLoadFiletab[index])) { |
| 1960 | PyObject *item = PyUnicode_FromString(suffix); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1961 | if (item == NULL) { |
| 1962 | Py_DECREF(list); |
| 1963 | return NULL; |
| 1964 | } |
| 1965 | if (PyList_Append(list, item) < 0) { |
| 1966 | Py_DECREF(list); |
| 1967 | Py_DECREF(item); |
| 1968 | return NULL; |
| 1969 | } |
| 1970 | Py_DECREF(item); |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1971 | index += 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1972 | } |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1973 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1974 | return list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1975 | } |
| 1976 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1977 | /*[clinic input] |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1978 | _imp.init_frozen |
| 1979 | |
| 1980 | name: unicode |
| 1981 | / |
| 1982 | |
| 1983 | Initializes a frozen module. |
| 1984 | [clinic start generated code]*/ |
| 1985 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1986 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1987 | _imp_init_frozen_impl(PyObject *module, PyObject *name) |
| 1988 | /*[clinic end generated code: output=fc0511ed869fd69c input=13019adfc04f3fb3]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1989 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1990 | int ret; |
| 1991 | PyObject *m; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1992 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1993 | ret = PyImport_ImportFrozenModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1994 | if (ret < 0) |
| 1995 | return NULL; |
| 1996 | if (ret == 0) { |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 1997 | Py_RETURN_NONE; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1998 | } |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1999 | m = PyImport_AddModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2000 | Py_XINCREF(m); |
| 2001 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2002 | } |
| 2003 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2004 | /*[clinic input] |
| 2005 | _imp.get_frozen_object |
| 2006 | |
| 2007 | name: unicode |
| 2008 | / |
| 2009 | |
| 2010 | Create a code object for a frozen module. |
| 2011 | [clinic start generated code]*/ |
| 2012 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2013 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2014 | _imp_get_frozen_object_impl(PyObject *module, PyObject *name) |
| 2015 | /*[clinic end generated code: output=2568cc5b7aa0da63 input=ed689bc05358fdbd]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2016 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2017 | return get_frozen_object(name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 2018 | } |
| 2019 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2020 | /*[clinic input] |
| 2021 | _imp.is_frozen_package |
| 2022 | |
| 2023 | name: unicode |
| 2024 | / |
| 2025 | |
| 2026 | Returns True if the module name is of a frozen package. |
| 2027 | [clinic start generated code]*/ |
| 2028 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2029 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2030 | _imp_is_frozen_package_impl(PyObject *module, PyObject *name) |
| 2031 | /*[clinic end generated code: output=e70cbdb45784a1c9 input=81b6cdecd080fbb8]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2032 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2033 | return is_frozen_package(name); |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 2034 | } |
| 2035 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2036 | /*[clinic input] |
| 2037 | _imp.is_builtin |
| 2038 | |
| 2039 | name: unicode |
| 2040 | / |
| 2041 | |
| 2042 | Returns True if the module name corresponds to a built-in module. |
| 2043 | [clinic start generated code]*/ |
| 2044 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 2045 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2046 | _imp_is_builtin_impl(PyObject *module, PyObject *name) |
| 2047 | /*[clinic end generated code: output=3bfd1162e2d3be82 input=86befdac021dd1c7]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2048 | { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2049 | return PyLong_FromLong(is_builtin(name)); |
| 2050 | } |
| 2051 | |
| 2052 | /*[clinic input] |
| 2053 | _imp.is_frozen |
| 2054 | |
| 2055 | name: unicode |
| 2056 | / |
| 2057 | |
| 2058 | Returns True if the module name corresponds to a frozen module. |
| 2059 | [clinic start generated code]*/ |
| 2060 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2061 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2062 | _imp_is_frozen_impl(PyObject *module, PyObject *name) |
| 2063 | /*[clinic end generated code: output=01f408f5ec0f2577 input=7301dbca1897d66b]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2064 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 2065 | const struct _frozen *p; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2066 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2067 | p = find_frozen(name); |
| 2068 | return PyBool_FromLong((long) (p == NULL ? 0 : p->size)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2069 | } |
| 2070 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2071 | /* Common implementation for _imp.exec_dynamic and _imp.exec_builtin */ |
| 2072 | static int |
| 2073 | exec_builtin_or_dynamic(PyObject *mod) { |
| 2074 | PyModuleDef *def; |
| 2075 | void *state; |
| 2076 | |
| 2077 | if (!PyModule_Check(mod)) { |
| 2078 | return 0; |
| 2079 | } |
| 2080 | |
| 2081 | def = PyModule_GetDef(mod); |
| 2082 | if (def == NULL) { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2083 | return 0; |
| 2084 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 2085 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2086 | state = PyModule_GetState(mod); |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2087 | if (state) { |
| 2088 | /* Already initialized; skip reload */ |
| 2089 | return 0; |
| 2090 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 2091 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2092 | return PyModule_ExecDef(mod, def); |
| 2093 | } |
| 2094 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 2095 | #ifdef HAVE_DYNAMIC_LOADING |
| 2096 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2097 | /*[clinic input] |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2098 | _imp.create_dynamic |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2099 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2100 | spec: object |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2101 | file: object = NULL |
| 2102 | / |
| 2103 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2104 | Create an extension module. |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2105 | [clinic start generated code]*/ |
| 2106 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2107 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2108 | _imp_create_dynamic_impl(PyObject *module, PyObject *spec, PyObject *file) |
| 2109 | /*[clinic end generated code: output=83249b827a4fde77 input=c31b954f4cf4e09d]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2110 | { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2111 | PyObject *mod, *name, *path; |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2112 | FILE *fp; |
| 2113 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2114 | name = PyObject_GetAttrString(spec, "name"); |
| 2115 | if (name == NULL) { |
| 2116 | return NULL; |
| 2117 | } |
| 2118 | |
| 2119 | path = PyObject_GetAttrString(spec, "origin"); |
| 2120 | if (path == NULL) { |
| 2121 | Py_DECREF(name); |
| 2122 | return NULL; |
| 2123 | } |
| 2124 | |
| 2125 | mod = _PyImport_FindExtensionObject(name, path); |
| 2126 | if (mod != NULL) { |
| 2127 | Py_DECREF(name); |
| 2128 | Py_DECREF(path); |
| 2129 | Py_INCREF(mod); |
| 2130 | return mod; |
| 2131 | } |
| 2132 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2133 | if (file != NULL) { |
| 2134 | fp = _Py_fopen_obj(path, "r"); |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2135 | if (fp == NULL) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2136 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2137 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2138 | return NULL; |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2139 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2140 | } |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2141 | else |
| 2142 | fp = NULL; |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2143 | |
| 2144 | mod = _PyImport_LoadDynamicModuleWithSpec(spec, fp); |
| 2145 | |
| 2146 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2147 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2148 | if (fp) |
| 2149 | fclose(fp); |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2150 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2151 | } |
| 2152 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2153 | /*[clinic input] |
| 2154 | _imp.exec_dynamic -> int |
| 2155 | |
| 2156 | mod: object |
| 2157 | / |
| 2158 | |
| 2159 | Initialize an extension module. |
| 2160 | [clinic start generated code]*/ |
| 2161 | |
| 2162 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2163 | _imp_exec_dynamic_impl(PyObject *module, PyObject *mod) |
| 2164 | /*[clinic end generated code: output=f5720ac7b465877d input=9fdbfcb250280d3a]*/ |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2165 | { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2166 | return exec_builtin_or_dynamic(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2167 | } |
| 2168 | |
| 2169 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 2170 | #endif /* HAVE_DYNAMIC_LOADING */ |
| 2171 | |
Larry Hastings | 7726ac9 | 2014-01-31 22:03:12 -0800 | [diff] [blame] | 2172 | /*[clinic input] |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2173 | _imp.exec_builtin -> int |
| 2174 | |
| 2175 | mod: object |
| 2176 | / |
| 2177 | |
| 2178 | Initialize a built-in module. |
| 2179 | [clinic start generated code]*/ |
| 2180 | |
| 2181 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2182 | _imp_exec_builtin_impl(PyObject *module, PyObject *mod) |
| 2183 | /*[clinic end generated code: output=0262447b240c038e input=7beed5a2f12a60ca]*/ |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2184 | { |
| 2185 | return exec_builtin_or_dynamic(mod); |
| 2186 | } |
| 2187 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2188 | /*[clinic input] |
| 2189 | _imp.source_hash |
| 2190 | |
| 2191 | key: long |
| 2192 | source: Py_buffer |
| 2193 | [clinic start generated code]*/ |
| 2194 | |
| 2195 | static PyObject * |
| 2196 | _imp_source_hash_impl(PyObject *module, long key, Py_buffer *source) |
| 2197 | /*[clinic end generated code: output=edb292448cf399ea input=9aaad1e590089789]*/ |
| 2198 | { |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2199 | union { |
| 2200 | uint64_t x; |
| 2201 | char data[sizeof(uint64_t)]; |
| 2202 | } hash; |
| 2203 | hash.x = _Py_KeyedHash((uint64_t)key, source->buf, source->len); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2204 | #if !PY_LITTLE_ENDIAN |
| 2205 | // Force to little-endian. There really ought to be a succinct standard way |
| 2206 | // to do this. |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2207 | for (size_t i = 0; i < sizeof(hash.data)/2; i++) { |
| 2208 | char tmp = hash.data[i]; |
| 2209 | hash.data[i] = hash.data[sizeof(hash.data) - i - 1]; |
| 2210 | hash.data[sizeof(hash.data) - i - 1] = tmp; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2211 | } |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2212 | #endif |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2213 | return PyBytes_FromStringAndSize(hash.data, sizeof(hash.data)); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2214 | } |
| 2215 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 2216 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 2217 | PyDoc_STRVAR(doc_imp, |
Brett Cannon | 6f44d66 | 2012-04-15 16:08:47 -0400 | [diff] [blame] | 2218 | "(Extremely) low-level import machinery bits as used by importlib and imp."); |
Guido van Rossum | 0207e6d | 1997-09-09 22:04:42 +0000 | [diff] [blame] | 2219 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 2220 | static PyMethodDef imp_methods[] = { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2221 | _IMP_EXTENSION_SUFFIXES_METHODDEF |
| 2222 | _IMP_LOCK_HELD_METHODDEF |
| 2223 | _IMP_ACQUIRE_LOCK_METHODDEF |
| 2224 | _IMP_RELEASE_LOCK_METHODDEF |
| 2225 | _IMP_GET_FROZEN_OBJECT_METHODDEF |
| 2226 | _IMP_IS_FROZEN_PACKAGE_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2227 | _IMP_CREATE_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2228 | _IMP_INIT_FROZEN_METHODDEF |
| 2229 | _IMP_IS_BUILTIN_METHODDEF |
| 2230 | _IMP_IS_FROZEN_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2231 | _IMP_CREATE_DYNAMIC_METHODDEF |
| 2232 | _IMP_EXEC_DYNAMIC_METHODDEF |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2233 | _IMP_EXEC_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2234 | _IMP__FIX_CO_FILENAME_METHODDEF |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2235 | _IMP_SOURCE_HASH_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2236 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2237 | }; |
| 2238 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 2239 | |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 2240 | static struct PyModuleDef impmodule = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2241 | PyModuleDef_HEAD_INIT, |
Brett Cannon | 6f44d66 | 2012-04-15 16:08:47 -0400 | [diff] [blame] | 2242 | "_imp", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2243 | doc_imp, |
| 2244 | 0, |
| 2245 | imp_methods, |
| 2246 | NULL, |
| 2247 | NULL, |
| 2248 | NULL, |
| 2249 | NULL |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 2250 | }; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2251 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2252 | const char *_Py_CheckHashBasedPycsMode = "default"; |
| 2253 | |
Jason Tishler | 6bc06ec | 2003-09-04 11:59:50 +0000 | [diff] [blame] | 2254 | PyMODINIT_FUNC |
Benjamin Peterson | c65ef77 | 2018-01-29 11:33:57 -0800 | [diff] [blame] | 2255 | PyInit__imp(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2256 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2257 | PyObject *m, *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2258 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2259 | m = PyModule_Create(&impmodule); |
| 2260 | if (m == NULL) |
| 2261 | goto failure; |
| 2262 | d = PyModule_GetDict(m); |
| 2263 | if (d == NULL) |
| 2264 | goto failure; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2265 | PyObject *pyc_mode = PyUnicode_FromString(_Py_CheckHashBasedPycsMode); |
| 2266 | if (pyc_mode == NULL) { |
| 2267 | goto failure; |
| 2268 | } |
| 2269 | if (PyDict_SetItemString(d, "check_hash_based_pycs", pyc_mode) < 0) { |
| 2270 | Py_DECREF(pyc_mode); |
| 2271 | goto failure; |
| 2272 | } |
| 2273 | Py_DECREF(pyc_mode); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2274 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2275 | return m; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 2276 | failure: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2277 | Py_XDECREF(m); |
| 2278 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2279 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2280 | |
| 2281 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2282 | /* API for embedding applications that want to add their own entries |
| 2283 | to the table of built-in modules. This should normally be called |
| 2284 | *before* Py_Initialize(). When the table resize fails, -1 is |
| 2285 | returned and the existing table is unchanged. |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2286 | |
| 2287 | After a similar function by Just van Rossum. */ |
| 2288 | |
| 2289 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2290 | PyImport_ExtendInittab(struct _inittab *newtab) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2291 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2292 | struct _inittab *p; |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2293 | size_t i, n; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2294 | int res = 0; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2295 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2296 | /* Count the number of entries in both tables */ |
| 2297 | for (n = 0; newtab[n].name != NULL; n++) |
| 2298 | ; |
| 2299 | if (n == 0) |
| 2300 | return 0; /* Nothing to do */ |
| 2301 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) |
| 2302 | ; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2303 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2304 | /* Force default raw memory allocator to get a known allocator to be able |
| 2305 | to release the memory in _PyImport_Fini2() */ |
| 2306 | PyMemAllocatorEx old_alloc; |
| 2307 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2308 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2309 | /* Allocate new memory for the combined table */ |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2310 | p = NULL; |
| 2311 | if (i + n <= SIZE_MAX / sizeof(struct _inittab) - 1) { |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2312 | size_t size = sizeof(struct _inittab) * (i + n + 1); |
| 2313 | p = PyMem_RawRealloc(inittab_copy, size); |
| 2314 | } |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2315 | if (p == NULL) { |
| 2316 | res = -1; |
| 2317 | goto done; |
| 2318 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2319 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2320 | /* Copy the tables into the new memory at the first call |
| 2321 | to PyImport_ExtendInittab(). */ |
| 2322 | if (inittab_copy != PyImport_Inittab) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2323 | memcpy(p, PyImport_Inittab, (i+1) * sizeof(struct _inittab)); |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2324 | } |
| 2325 | memcpy(p + i, newtab, (n + 1) * sizeof(struct _inittab)); |
| 2326 | PyImport_Inittab = inittab_copy = p; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2327 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2328 | done: |
| 2329 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2330 | return res; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2331 | } |
| 2332 | |
| 2333 | /* Shorthand to add a single entry given a name and a function */ |
| 2334 | |
| 2335 | int |
Brett Cannon | a826f32 | 2009-04-02 03:41:46 +0000 | [diff] [blame] | 2336 | PyImport_AppendInittab(const char *name, PyObject* (*initfunc)(void)) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2337 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2338 | struct _inittab newtab[2]; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2339 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2340 | memset(newtab, '\0', sizeof newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2341 | |
Serhiy Storchaka | 20b39b2 | 2014-09-28 11:27:24 +0300 | [diff] [blame] | 2342 | newtab[0].name = name; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2343 | newtab[0].initfunc = initfunc; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2344 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2345 | return PyImport_ExtendInittab(newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2346 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2347 | |
| 2348 | #ifdef __cplusplus |
| 2349 | } |
| 2350 | #endif |