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" |
Victor Stinner | 3bb183d | 2018-11-22 18:38:38 +0100 | [diff] [blame] | 6 | #undef Yield /* undefine macro conflicting with <winbase.h> */ |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 7 | #include "pycore_import.h" // _PyImport_BootstrapImp() |
Victor Stinner | 61691d8 | 2019-10-02 23:51:20 +0200 | [diff] [blame] | 8 | #include "pycore_initconfig.h" |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 9 | #include "pycore_pyerrors.h" |
Victor Stinner | 621cebe | 2018-11-12 16:53:38 +0100 | [diff] [blame] | 10 | #include "pycore_pyhash.h" |
| 11 | #include "pycore_pylifecycle.h" |
Victor Stinner | d9ea5ca | 2020-04-15 02:57:50 +0200 | [diff] [blame] | 12 | #include "pycore_pymem.h" // _PyMem_SetDefaultAllocator() |
Victor Stinner | e5014be | 2020-04-14 17:52:15 +0200 | [diff] [blame] | 13 | #include "pycore_interp.h" // _PyInterpreterState_ClearModules() |
| 14 | #include "pycore_pystate.h" // _PyInterpreterState_GET() |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 15 | #include "pycore_sysmodule.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 16 | #include "errcode.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 17 | #include "marshal.h" |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 18 | #include "code.h" |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 19 | #include "importdl.h" |
Christian Heimes | 3d2b407 | 2017-09-30 00:53:19 +0200 | [diff] [blame] | 20 | #include "pydtrace.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 21 | |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 22 | #ifdef HAVE_FCNTL_H |
| 23 | #include <fcntl.h> |
| 24 | #endif |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 25 | #ifdef __cplusplus |
Brett Cannon | 9a5b25a | 2010-03-01 02:09:17 +0000 | [diff] [blame] | 26 | extern "C" { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 27 | #endif |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 28 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 29 | #define CACHEDIR "__pycache__" |
Guido van Rossum | 96774c1 | 2000-05-01 20:19:08 +0000 | [diff] [blame] | 30 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 31 | /* Forward references */ |
| 32 | static PyObject *import_add_module(PyThreadState *tstate, PyObject *name); |
| 33 | |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 34 | /* See _PyImport_FixupExtensionObject() below */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 35 | static PyObject *extensions = NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 36 | |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame] | 37 | /* This table is defined in config.c: */ |
| 38 | extern struct _inittab _PyImport_Inittab[]; |
| 39 | |
| 40 | struct _inittab *PyImport_Inittab = _PyImport_Inittab; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 41 | static struct _inittab *inittab_copy = NULL; |
Guido van Rossum | 66f1fa8 | 1991-04-03 19:03:52 +0000 | [diff] [blame] | 42 | |
Hai Shi | 46874c2 | 2020-01-30 17:20:25 -0600 | [diff] [blame] | 43 | _Py_IDENTIFIER(__path__); |
| 44 | _Py_IDENTIFIER(__spec__); |
| 45 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 46 | /*[clinic input] |
| 47 | module _imp |
| 48 | [clinic start generated code]*/ |
Serhiy Storchaka | 1009bf1 | 2015-04-03 23:53:51 +0300 | [diff] [blame] | 49 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=9c332475d8686284]*/ |
Brett Cannon | fd4d050 | 2014-05-30 11:21:14 -0400 | [diff] [blame] | 50 | |
| 51 | #include "clinic/import.c.h" |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 52 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 53 | /* Initialize things */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 54 | |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 55 | PyStatus |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 56 | _PyImportZip_Init(PyThreadState *tstate) |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 57 | { |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 58 | PyObject *path_hooks, *zipimport; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 59 | int err = 0; |
| 60 | |
| 61 | path_hooks = PySys_GetObject("path_hooks"); |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 62 | if (path_hooks == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 63 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 64 | "unable to get sys.path_hooks"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 65 | goto error; |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 66 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 67 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 68 | int verbose = _PyInterpreterState_GetConfig(tstate->interp)->verbose; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 69 | if (verbose) { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 70 | PySys_WriteStderr("# installing zipimport hook\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 71 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 72 | |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 73 | zipimport = PyImport_ImportModule("zipimport"); |
| 74 | if (zipimport == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 75 | _PyErr_Clear(tstate); /* No zip import module -- okay */ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 76 | if (verbose) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 77 | PySys_WriteStderr("# can't import zipimport\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 78 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 79 | } |
| 80 | else { |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 81 | _Py_IDENTIFIER(zipimporter); |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 82 | PyObject *zipimporter = _PyObject_GetAttrId(zipimport, |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 83 | &PyId_zipimporter); |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 84 | Py_DECREF(zipimport); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 85 | if (zipimporter == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 86 | _PyErr_Clear(tstate); /* No zipimporter object -- okay */ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 87 | if (verbose) { |
| 88 | PySys_WriteStderr("# can't import zipimport.zipimporter\n"); |
| 89 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 90 | } |
| 91 | else { |
Brett Cannon | 8923a4d | 2012-04-24 22:03:46 -0400 | [diff] [blame] | 92 | /* sys.path_hooks.insert(0, zipimporter) */ |
| 93 | err = PyList_Insert(path_hooks, 0, zipimporter); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 94 | Py_DECREF(zipimporter); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 95 | if (err < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 96 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 97 | } |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 98 | if (verbose) { |
| 99 | PySys_WriteStderr("# installed zipimport hook\n"); |
| 100 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 101 | } |
| 102 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 103 | |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 104 | return _PyStatus_OK(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 105 | |
| 106 | error: |
| 107 | PyErr_Print(); |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 108 | return _PyStatus_ERR("initializing zipimport failed"); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 109 | } |
| 110 | |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 111 | /* Locking primitives to prevent parallel imports of the same module |
| 112 | in different threads to return with a partially loaded module. |
| 113 | These calls are serialized by the global interpreter lock. */ |
| 114 | |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 115 | static PyThread_type_lock import_lock = NULL; |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 116 | static unsigned long import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 117 | static int import_lock_level = 0; |
| 118 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 119 | void |
| 120 | _PyImport_AcquireLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 121 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 122 | unsigned long me = PyThread_get_thread_ident(); |
| 123 | if (me == PYTHREAD_INVALID_THREAD_ID) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 124 | return; /* Too bad */ |
| 125 | if (import_lock == NULL) { |
| 126 | import_lock = PyThread_allocate_lock(); |
| 127 | if (import_lock == NULL) |
| 128 | return; /* Nothing much we can do. */ |
| 129 | } |
| 130 | if (import_lock_thread == me) { |
| 131 | import_lock_level++; |
| 132 | return; |
| 133 | } |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 134 | if (import_lock_thread != PYTHREAD_INVALID_THREAD_ID || |
| 135 | !PyThread_acquire_lock(import_lock, 0)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 136 | { |
| 137 | PyThreadState *tstate = PyEval_SaveThread(); |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 138 | PyThread_acquire_lock(import_lock, WAIT_LOCK); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 139 | PyEval_RestoreThread(tstate); |
| 140 | } |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 141 | assert(import_lock_level == 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 142 | import_lock_thread = me; |
| 143 | import_lock_level = 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 144 | } |
| 145 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 146 | int |
| 147 | _PyImport_ReleaseLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 148 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 149 | unsigned long me = PyThread_get_thread_ident(); |
| 150 | if (me == PYTHREAD_INVALID_THREAD_ID || import_lock == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 151 | return 0; /* Too bad */ |
| 152 | if (import_lock_thread != me) |
| 153 | return -1; |
| 154 | import_lock_level--; |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 155 | assert(import_lock_level >= 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 156 | if (import_lock_level == 0) { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 157 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 158 | PyThread_release_lock(import_lock); |
| 159 | } |
| 160 | return 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 161 | } |
| 162 | |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 163 | #ifdef HAVE_FORK |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 164 | /* 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] | 165 | created child processes do not share locks with the parent. |
| 166 | We now acquire the import lock around fork() calls but on some platforms |
| 167 | (Solaris 9 and earlier? see isue7242) that still left us with problems. */ |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 168 | PyStatus |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 169 | _PyImport_ReInitLock(void) |
| 170 | { |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 171 | if (import_lock != NULL) { |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 172 | if (_PyThread_at_fork_reinit(&import_lock) < 0) { |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 173 | return _PyStatus_ERR("failed to create a new lock"); |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 174 | } |
| 175 | } |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 176 | |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 177 | if (import_lock_level > 1) { |
| 178 | /* Forked as a side effect of import */ |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 179 | unsigned long me = PyThread_get_thread_ident(); |
Victor Stinner | 45b34a0 | 2020-06-02 17:13:49 +0200 | [diff] [blame] | 180 | PyThread_acquire_lock(import_lock, WAIT_LOCK); |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 181 | import_lock_thread = me; |
| 182 | import_lock_level--; |
| 183 | } else { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 184 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 185 | import_lock_level = 0; |
| 186 | } |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 187 | return _PyStatus_OK(); |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 188 | } |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 189 | #endif |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 190 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 191 | /*[clinic input] |
| 192 | _imp.lock_held |
| 193 | |
| 194 | Return True if the import lock is currently held, else False. |
| 195 | |
| 196 | On platforms without threads, return False. |
| 197 | [clinic start generated code]*/ |
| 198 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 199 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 200 | _imp_lock_held_impl(PyObject *module) |
| 201 | /*[clinic end generated code: output=8b89384b5e1963fc input=9b088f9b217d9bdf]*/ |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 202 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 203 | return PyBool_FromLong(import_lock_thread != PYTHREAD_INVALID_THREAD_ID); |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 204 | } |
| 205 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 206 | /*[clinic input] |
| 207 | _imp.acquire_lock |
| 208 | |
| 209 | Acquires the interpreter's import lock for the current thread. |
| 210 | |
| 211 | This lock should be used by import hooks to ensure thread-safety when importing |
| 212 | modules. On platforms without threads, this function does nothing. |
| 213 | [clinic start generated code]*/ |
| 214 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 215 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 216 | _imp_acquire_lock_impl(PyObject *module) |
| 217 | /*[clinic end generated code: output=1aff58cb0ee1b026 input=4a2d4381866d5fdc]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 218 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 219 | _PyImport_AcquireLock(); |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 220 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 221 | } |
| 222 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 223 | /*[clinic input] |
| 224 | _imp.release_lock |
| 225 | |
| 226 | Release the interpreter's import lock. |
| 227 | |
| 228 | On platforms without threads, this function does nothing. |
| 229 | [clinic start generated code]*/ |
| 230 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 231 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 232 | _imp_release_lock_impl(PyObject *module) |
| 233 | /*[clinic end generated code: output=7faab6d0be178b0a input=934fb11516dd778b]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 234 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 235 | if (_PyImport_ReleaseLock() < 0) { |
| 236 | PyErr_SetString(PyExc_RuntimeError, |
| 237 | "not holding the import lock"); |
| 238 | return NULL; |
| 239 | } |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 240 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 241 | } |
| 242 | |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 243 | void |
| 244 | _PyImport_Fini(void) |
| 245 | { |
Serhiy Storchaka | 505ff75 | 2014-02-09 13:33:53 +0200 | [diff] [blame] | 246 | Py_CLEAR(extensions); |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 247 | if (import_lock != NULL) { |
| 248 | PyThread_free_lock(import_lock); |
| 249 | import_lock = NULL; |
| 250 | } |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 251 | } |
| 252 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 253 | void |
| 254 | _PyImport_Fini2(void) |
| 255 | { |
| 256 | /* Use the same memory allocator than PyImport_ExtendInittab(). */ |
| 257 | PyMemAllocatorEx old_alloc; |
| 258 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 259 | |
| 260 | /* Free memory allocated by PyImport_ExtendInittab() */ |
| 261 | PyMem_RawFree(inittab_copy); |
Gregory Szorc | 64224a4 | 2020-05-01 11:07:54 -0700 | [diff] [blame] | 262 | inittab_copy = NULL; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 263 | |
| 264 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 265 | } |
| 266 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 267 | /* Helper for sys */ |
| 268 | |
| 269 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 270 | PyImport_GetModuleDict(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 271 | { |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 272 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 273 | if (interp->modules == NULL) { |
Victor Stinner | 87d3b9d | 2020-03-25 19:27:36 +0100 | [diff] [blame] | 274 | Py_FatalError("interpreter has no modules dictionary"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 275 | } |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 276 | return interp->modules; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 277 | } |
| 278 | |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 279 | /* In some corner cases it is important to be sure that the import |
| 280 | machinery has been initialized (or not cleaned up yet). For |
| 281 | example, see issue #4236 and PyModule_Create2(). */ |
| 282 | |
| 283 | int |
| 284 | _PyImport_IsInitialized(PyInterpreterState *interp) |
| 285 | { |
| 286 | if (interp->modules == NULL) |
| 287 | return 0; |
| 288 | return 1; |
| 289 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 290 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 291 | PyObject * |
| 292 | _PyImport_GetModuleId(struct _Py_Identifier *nameid) |
| 293 | { |
| 294 | PyObject *name = _PyUnicode_FromId(nameid); /* borrowed */ |
| 295 | if (name == NULL) { |
| 296 | return NULL; |
| 297 | } |
| 298 | return PyImport_GetModule(name); |
| 299 | } |
| 300 | |
| 301 | int |
| 302 | _PyImport_SetModule(PyObject *name, PyObject *m) |
| 303 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 304 | PyThreadState *tstate = _PyThreadState_GET(); |
| 305 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 306 | return PyObject_SetItem(modules, name, m); |
| 307 | } |
| 308 | |
| 309 | int |
| 310 | _PyImport_SetModuleString(const char *name, PyObject *m) |
| 311 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 312 | PyThreadState *tstate = _PyThreadState_GET(); |
| 313 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 314 | return PyMapping_SetItemString(modules, name, m); |
| 315 | } |
| 316 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 317 | static PyObject * |
| 318 | import_get_module(PyThreadState *tstate, PyObject *name) |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 319 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 320 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 321 | if (modules == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 322 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 323 | "unable to get sys.modules"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 324 | return NULL; |
| 325 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 326 | |
| 327 | PyObject *m; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 328 | Py_INCREF(modules); |
| 329 | if (PyDict_CheckExact(modules)) { |
| 330 | m = PyDict_GetItemWithError(modules, name); /* borrowed */ |
| 331 | Py_XINCREF(m); |
| 332 | } |
| 333 | else { |
| 334 | m = PyObject_GetItem(modules, name); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 335 | if (m == NULL && _PyErr_ExceptionMatches(tstate, PyExc_KeyError)) { |
| 336 | _PyErr_Clear(tstate); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 337 | } |
| 338 | } |
| 339 | Py_DECREF(modules); |
| 340 | return m; |
| 341 | } |
| 342 | |
| 343 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 344 | static int |
| 345 | import_ensure_initialized(PyThreadState *tstate, PyObject *mod, PyObject *name) |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 346 | { |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 347 | PyInterpreterState *interp = tstate->interp; |
| 348 | PyObject *spec; |
| 349 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 350 | _Py_IDENTIFIER(_lock_unlock_module); |
| 351 | |
| 352 | /* Optimization: only call _bootstrap._lock_unlock_module() if |
| 353 | __spec__._initializing is true. |
| 354 | NOTE: because of this, initializing must be set *before* |
| 355 | stuffing the new module in sys.modules. |
| 356 | */ |
| 357 | spec = _PyObject_GetAttrId(mod, &PyId___spec__); |
| 358 | int busy = _PyModuleSpec_IsInitializing(spec); |
| 359 | Py_XDECREF(spec); |
| 360 | if (busy) { |
| 361 | /* Wait until module is done importing. */ |
| 362 | PyObject *value = _PyObject_CallMethodIdOneArg( |
| 363 | interp->importlib, &PyId__lock_unlock_module, name); |
| 364 | if (value == NULL) { |
| 365 | return -1; |
| 366 | } |
| 367 | Py_DECREF(value); |
| 368 | } |
| 369 | return 0; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 370 | } |
| 371 | |
| 372 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 373 | /* Helper for pythonrun.c -- return magic number and tag. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 374 | |
| 375 | long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 376 | PyImport_GetMagicNumber(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 377 | { |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 378 | long res; |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 379 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 380 | PyObject *external, *pyc_magic; |
| 381 | |
| 382 | external = PyObject_GetAttrString(interp->importlib, "_bootstrap_external"); |
| 383 | if (external == NULL) |
| 384 | return -1; |
| 385 | pyc_magic = PyObject_GetAttrString(external, "_RAW_MAGIC_NUMBER"); |
| 386 | Py_DECREF(external); |
Brett Cannon | 77b2abd | 2012-07-09 16:09:00 -0400 | [diff] [blame] | 387 | if (pyc_magic == NULL) |
| 388 | return -1; |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 389 | res = PyLong_AsLong(pyc_magic); |
Benjamin Peterson | 66f3659 | 2012-07-09 22:21:55 -0700 | [diff] [blame] | 390 | Py_DECREF(pyc_magic); |
| 391 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 392 | } |
| 393 | |
| 394 | |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 395 | extern const char * _PySys_ImplCacheTag; |
| 396 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 397 | const char * |
| 398 | PyImport_GetMagicTag(void) |
| 399 | { |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 400 | return _PySys_ImplCacheTag; |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 401 | } |
| 402 | |
Brett Cannon | 98979b8 | 2012-07-02 15:13:11 -0400 | [diff] [blame] | 403 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 404 | /* Magic for extension modules (built-in as well as dynamically |
| 405 | loaded). To prevent initializing an extension module more than |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 406 | once, we keep a static dictionary 'extensions' keyed by the tuple |
| 407 | (module name, module name) (for built-in modules) or by |
| 408 | (filename, module name) (for dynamically loaded modules), containing these |
| 409 | modules. A copy of the module's dictionary is stored by calling |
| 410 | _PyImport_FixupExtensionObject() immediately after the module initialization |
| 411 | function succeeds. A copy can be retrieved from there by calling |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 412 | import_find_extension(). |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 413 | |
Barry Warsaw | 7c9627b | 2010-06-17 18:38:20 +0000 | [diff] [blame] | 414 | Modules which do support multiple initialization set their m_size |
| 415 | field to a non-negative number (indicating the size of the |
| 416 | module-specific state). They are still recorded in the extensions |
| 417 | dictionary, to avoid loading shared libraries twice. |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 418 | */ |
| 419 | |
| 420 | int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 421 | _PyImport_FixupExtensionObject(PyObject *mod, PyObject *name, |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 422 | PyObject *filename, PyObject *modules) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 423 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 424 | if (mod == NULL || !PyModule_Check(mod)) { |
| 425 | PyErr_BadInternalCall(); |
| 426 | return -1; |
| 427 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 428 | |
| 429 | struct PyModuleDef *def = PyModule_GetDef(mod); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 430 | if (!def) { |
| 431 | PyErr_BadInternalCall(); |
| 432 | return -1; |
| 433 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 434 | |
| 435 | PyThreadState *tstate = _PyThreadState_GET(); |
| 436 | if (PyObject_SetItem(modules, name, mod) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 437 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 438 | } |
| 439 | if (_PyState_AddModule(tstate, mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 440 | PyMapping_DelItem(modules, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 441 | return -1; |
| 442 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 443 | |
| 444 | if (_Py_IsMainInterpreter(tstate)) { |
| 445 | if (def->m_size == -1) { |
| 446 | if (def->m_base.m_copy) { |
| 447 | /* Somebody already imported the module, |
| 448 | likely under a different name. |
| 449 | XXX this should really not happen. */ |
| 450 | Py_CLEAR(def->m_base.m_copy); |
| 451 | } |
| 452 | PyObject *dict = PyModule_GetDict(mod); |
| 453 | if (dict == NULL) { |
| 454 | return -1; |
| 455 | } |
| 456 | def->m_base.m_copy = PyDict_Copy(dict); |
| 457 | if (def->m_base.m_copy == NULL) { |
| 458 | return -1; |
| 459 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 460 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 461 | |
| 462 | if (extensions == NULL) { |
| 463 | extensions = PyDict_New(); |
| 464 | if (extensions == NULL) { |
| 465 | return -1; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | PyObject *key = PyTuple_Pack(2, filename, name); |
| 470 | if (key == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 471 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 472 | } |
| 473 | int res = PyDict_SetItem(extensions, key, (PyObject *)def); |
| 474 | Py_DECREF(key); |
| 475 | if (res < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 476 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 477 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 478 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 479 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 480 | return 0; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 481 | } |
| 482 | |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 483 | int |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 484 | _PyImport_FixupBuiltin(PyObject *mod, const char *name, PyObject *modules) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 485 | { |
| 486 | int res; |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 487 | PyObject *nameobj; |
Victor Stinner | 21fcd0c | 2011-03-07 18:28:15 +0100 | [diff] [blame] | 488 | nameobj = PyUnicode_InternFromString(name); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 489 | if (nameobj == NULL) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 490 | return -1; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 491 | res = _PyImport_FixupExtensionObject(mod, nameobj, nameobj, modules); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 492 | Py_DECREF(nameobj); |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 493 | return res; |
| 494 | } |
| 495 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 496 | static PyObject * |
| 497 | import_find_extension(PyThreadState *tstate, PyObject *name, |
| 498 | PyObject *filename) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 499 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 500 | if (extensions == NULL) { |
| 501 | return NULL; |
| 502 | } |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 503 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 504 | PyObject *key = PyTuple_Pack(2, filename, name); |
| 505 | if (key == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 506 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 507 | } |
| 508 | PyModuleDef* def = (PyModuleDef *)PyDict_GetItemWithError(extensions, key); |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 509 | Py_DECREF(key); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 510 | if (def == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 511 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 512 | } |
| 513 | |
| 514 | PyObject *mod, *mdict; |
| 515 | PyObject *modules = tstate->interp->modules; |
| 516 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 517 | if (def->m_size == -1) { |
| 518 | /* Module does not support repeated initialization */ |
| 519 | if (def->m_base.m_copy == NULL) |
| 520 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 521 | mod = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 522 | if (mod == NULL) |
| 523 | return NULL; |
| 524 | mdict = PyModule_GetDict(mod); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 525 | if (mdict == NULL) { |
| 526 | Py_DECREF(mod); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 527 | return NULL; |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 528 | } |
| 529 | if (PyDict_Update(mdict, def->m_base.m_copy)) { |
| 530 | Py_DECREF(mod); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 531 | return NULL; |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 532 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 533 | } |
| 534 | else { |
| 535 | if (def->m_base.m_init == NULL) |
| 536 | return NULL; |
| 537 | mod = def->m_base.m_init(); |
| 538 | if (mod == NULL) |
| 539 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 540 | if (PyObject_SetItem(modules, name, mod) == -1) { |
Christian Heimes | 09ca794 | 2013-07-20 14:51:53 +0200 | [diff] [blame] | 541 | Py_DECREF(mod); |
| 542 | return NULL; |
| 543 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 544 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 545 | if (_PyState_AddModule(tstate, mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 546 | PyMapping_DelItem(modules, name); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 547 | Py_DECREF(mod); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 548 | return NULL; |
| 549 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 550 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 551 | int verbose = _PyInterpreterState_GetConfig(tstate->interp)->verbose; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 552 | if (verbose) { |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 553 | PySys_FormatStderr("import %U # previously loaded (%R)\n", |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 554 | name, filename); |
| 555 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 556 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 557 | } |
| 558 | |
| 559 | |
| 560 | /* Get the module object corresponding to a module name. |
| 561 | First check the modules dictionary if there's one there, |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 562 | if not, create a new one and insert it in the modules dictionary. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 563 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 564 | static PyObject * |
| 565 | import_add_module(PyThreadState *tstate, PyObject *name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 566 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 567 | PyObject *modules = tstate->interp->modules; |
| 568 | if (modules == NULL) { |
| 569 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 570 | "no import module dictionary"); |
| 571 | return NULL; |
| 572 | } |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 573 | |
Eric Snow | 86b7afd | 2017-09-04 17:54:09 -0600 | [diff] [blame] | 574 | PyObject *m; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 575 | if (PyDict_CheckExact(modules)) { |
| 576 | m = PyDict_GetItemWithError(modules, name); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 577 | Py_XINCREF(m); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 578 | } |
| 579 | else { |
| 580 | m = PyObject_GetItem(modules, name); |
Min ho Kim | c4cacc8 | 2019-07-31 08:16:13 +1000 | [diff] [blame] | 581 | // For backward-compatibility we copy the behavior |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 582 | // of PyDict_GetItemWithError(). |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 583 | if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) { |
| 584 | _PyErr_Clear(tstate); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 585 | } |
Serhiy Storchaka | 48a583b | 2016-02-10 10:31:20 +0200 | [diff] [blame] | 586 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 587 | if (_PyErr_Occurred(tstate)) { |
Serhiy Storchaka | 48a583b | 2016-02-10 10:31:20 +0200 | [diff] [blame] | 588 | return NULL; |
| 589 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 590 | if (m != NULL && PyModule_Check(m)) { |
| 591 | return m; |
| 592 | } |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 593 | Py_XDECREF(m); |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 594 | m = PyModule_NewObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 595 | if (m == NULL) |
| 596 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 597 | if (PyObject_SetItem(modules, name, m) != 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 598 | Py_DECREF(m); |
| 599 | return NULL; |
| 600 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 601 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 602 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 603 | } |
| 604 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 605 | PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 606 | PyImport_AddModuleObject(PyObject *name) |
| 607 | { |
| 608 | PyThreadState *tstate = _PyThreadState_GET(); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 609 | PyObject *mod = import_add_module(tstate, name); |
| 610 | if (mod) { |
| 611 | PyObject *ref = PyWeakref_NewRef(mod, NULL); |
| 612 | Py_DECREF(mod); |
| 613 | if (ref == NULL) { |
| 614 | return NULL; |
| 615 | } |
| 616 | mod = PyWeakref_GetObject(ref); |
| 617 | Py_DECREF(ref); |
| 618 | } |
| 619 | return mod; /* borrowed reference */ |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 620 | } |
| 621 | |
| 622 | |
| 623 | PyObject * |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 624 | PyImport_AddModule(const char *name) |
| 625 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 626 | PyObject *nameobj = PyUnicode_FromString(name); |
| 627 | if (nameobj == NULL) { |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 628 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 629 | } |
| 630 | PyObject *module = PyImport_AddModuleObject(nameobj); |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 631 | Py_DECREF(nameobj); |
| 632 | return module; |
| 633 | } |
| 634 | |
| 635 | |
Serhiy Storchaka | 8287aad | 2020-10-11 16:51:07 +0300 | [diff] [blame] | 636 | /* Remove name from sys.modules, if it's there. |
| 637 | * Can be called with an exception raised. |
| 638 | * If fail to remove name a new exception will be chained with the old |
| 639 | * exception, otherwise the old exception is preserved. |
| 640 | */ |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 641 | static void |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 642 | remove_module(PyThreadState *tstate, PyObject *name) |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 643 | { |
Zackery Spytz | 94a64e9 | 2019-05-08 10:31:23 -0600 | [diff] [blame] | 644 | PyObject *type, *value, *traceback; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 645 | _PyErr_Fetch(tstate, &type, &value, &traceback); |
| 646 | |
| 647 | PyObject *modules = tstate->interp->modules; |
Serhiy Storchaka | 8287aad | 2020-10-11 16:51:07 +0300 | [diff] [blame] | 648 | if (PyDict_CheckExact(modules)) { |
| 649 | PyObject *mod = _PyDict_Pop(modules, name, Py_None); |
| 650 | Py_XDECREF(mod); |
Zackery Spytz | 94a64e9 | 2019-05-08 10:31:23 -0600 | [diff] [blame] | 651 | } |
Serhiy Storchaka | 8287aad | 2020-10-11 16:51:07 +0300 | [diff] [blame] | 652 | else if (PyMapping_DelItem(modules, name) < 0) { |
| 653 | if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) { |
| 654 | _PyErr_Clear(tstate); |
| 655 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 656 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 657 | |
Serhiy Storchaka | 8287aad | 2020-10-11 16:51:07 +0300 | [diff] [blame] | 658 | _PyErr_ChainExceptions(type, value, traceback); |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 659 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 660 | |
Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 661 | |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 662 | /* Execute a code object in a module and return the module object |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 663 | * WITH INCREMENTED REFERENCE COUNT. If an error occurs, name is |
| 664 | * removed from sys.modules, to avoid leaving damaged module objects |
| 665 | * in sys.modules. The caller may wish to restore the original |
| 666 | * module object (if any) in this case; PyImport_ReloadModule is an |
| 667 | * example. |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 668 | * |
| 669 | * Note that PyImport_ExecCodeModuleWithPathnames() is the preferred, richer |
| 670 | * interface. The other two exist primarily for backward compatibility. |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 671 | */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 672 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 673 | PyImport_ExecCodeModule(const char *name, PyObject *co) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 674 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 675 | return PyImport_ExecCodeModuleWithPathnames( |
| 676 | name, co, (char *)NULL, (char *)NULL); |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 677 | } |
| 678 | |
| 679 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 680 | PyImport_ExecCodeModuleEx(const char *name, PyObject *co, const char *pathname) |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 681 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 682 | return PyImport_ExecCodeModuleWithPathnames( |
| 683 | name, co, pathname, (char *)NULL); |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 684 | } |
| 685 | |
| 686 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 687 | PyImport_ExecCodeModuleWithPathnames(const char *name, PyObject *co, |
| 688 | const char *pathname, |
| 689 | const char *cpathname) |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 690 | { |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 691 | PyObject *m = NULL; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 692 | PyObject *nameobj, *pathobj = NULL, *cpathobj = NULL, *external= NULL; |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 693 | |
| 694 | nameobj = PyUnicode_FromString(name); |
| 695 | if (nameobj == NULL) |
| 696 | return NULL; |
| 697 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 698 | if (cpathname != NULL) { |
| 699 | cpathobj = PyUnicode_DecodeFSDefault(cpathname); |
| 700 | if (cpathobj == NULL) |
| 701 | goto error; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 702 | } |
| 703 | else |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 704 | cpathobj = NULL; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 705 | |
| 706 | if (pathname != NULL) { |
| 707 | pathobj = PyUnicode_DecodeFSDefault(pathname); |
| 708 | if (pathobj == NULL) |
| 709 | goto error; |
| 710 | } |
| 711 | else if (cpathobj != NULL) { |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 712 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 713 | _Py_IDENTIFIER(_get_sourcefile); |
| 714 | |
| 715 | if (interp == NULL) { |
Victor Stinner | 87d3b9d | 2020-03-25 19:27:36 +0100 | [diff] [blame] | 716 | Py_FatalError("no current interpreter"); |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 717 | } |
| 718 | |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 719 | external= PyObject_GetAttrString(interp->importlib, |
| 720 | "_bootstrap_external"); |
| 721 | if (external != NULL) { |
Jeroen Demeyer | 59ad110 | 2019-07-11 10:59:05 +0200 | [diff] [blame] | 722 | pathobj = _PyObject_CallMethodIdOneArg( |
| 723 | external, &PyId__get_sourcefile, cpathobj); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 724 | Py_DECREF(external); |
| 725 | } |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 726 | if (pathobj == NULL) |
| 727 | PyErr_Clear(); |
| 728 | } |
| 729 | else |
| 730 | pathobj = NULL; |
| 731 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 732 | m = PyImport_ExecCodeModuleObject(nameobj, co, pathobj, cpathobj); |
| 733 | error: |
| 734 | Py_DECREF(nameobj); |
| 735 | Py_XDECREF(pathobj); |
| 736 | Py_XDECREF(cpathobj); |
| 737 | return m; |
| 738 | } |
| 739 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 740 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 741 | module_dict_for_exec(PyThreadState *tstate, PyObject *name) |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 742 | { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 743 | _Py_IDENTIFIER(__builtins__); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 744 | PyObject *m, *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 745 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 746 | m = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 747 | if (m == NULL) |
| 748 | return NULL; |
| 749 | /* If the module is being reloaded, we get the old module back |
| 750 | and re-use its dict to exec the new code. */ |
| 751 | d = PyModule_GetDict(m); |
Serhiy Storchaka | b510e10 | 2020-10-26 12:47:57 +0200 | [diff] [blame] | 752 | int r = _PyDict_ContainsId(d, &PyId___builtins__); |
| 753 | if (r == 0) { |
| 754 | r = _PyDict_SetItemId(d, &PyId___builtins__, |
| 755 | PyEval_GetBuiltins()); |
| 756 | } |
| 757 | if (r < 0) { |
| 758 | remove_module(tstate, name); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 759 | Py_DECREF(m); |
Serhiy Storchaka | b510e10 | 2020-10-26 12:47:57 +0200 | [diff] [blame] | 760 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 761 | } |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 762 | |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 763 | Py_INCREF(d); |
| 764 | Py_DECREF(m); |
| 765 | return d; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 766 | } |
| 767 | |
| 768 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 769 | exec_code_in_module(PyThreadState *tstate, PyObject *name, |
| 770 | PyObject *module_dict, PyObject *code_object) |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 771 | { |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 772 | PyObject *v, *m; |
| 773 | |
| 774 | v = PyEval_EvalCode(code_object, module_dict, module_dict); |
| 775 | if (v == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 776 | remove_module(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 777 | return NULL; |
| 778 | } |
| 779 | Py_DECREF(v); |
| 780 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 781 | m = import_get_module(tstate, name); |
| 782 | if (m == NULL && !_PyErr_Occurred(tstate)) { |
| 783 | _PyErr_Format(tstate, PyExc_ImportError, |
| 784 | "Loaded module %R not found in sys.modules", |
| 785 | name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 786 | } |
| 787 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 788 | return m; |
| 789 | } |
| 790 | |
| 791 | PyObject* |
| 792 | PyImport_ExecCodeModuleObject(PyObject *name, PyObject *co, PyObject *pathname, |
| 793 | PyObject *cpathname) |
| 794 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 795 | PyThreadState *tstate = _PyThreadState_GET(); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 796 | PyObject *d, *external, *res; |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 797 | _Py_IDENTIFIER(_fix_up_module); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 798 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 799 | d = module_dict_for_exec(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 800 | if (d == NULL) { |
| 801 | return NULL; |
| 802 | } |
| 803 | |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 804 | if (pathname == NULL) { |
| 805 | pathname = ((PyCodeObject *)co)->co_filename; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 806 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 807 | external = PyObject_GetAttrString(tstate->interp->importlib, |
| 808 | "_bootstrap_external"); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 809 | if (external == NULL) { |
| 810 | Py_DECREF(d); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 811 | return NULL; |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 812 | } |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 813 | res = _PyObject_CallMethodIdObjArgs(external, |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 814 | &PyId__fix_up_module, |
| 815 | d, name, pathname, cpathname, NULL); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 816 | Py_DECREF(external); |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 817 | if (res != NULL) { |
Eric Snow | 58cfdd8 | 2014-05-29 12:31:39 -0600 | [diff] [blame] | 818 | Py_DECREF(res); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 819 | res = exec_code_in_module(tstate, name, d, co); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 820 | } |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 821 | Py_DECREF(d); |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 822 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 826 | static void |
| 827 | update_code_filenames(PyCodeObject *co, PyObject *oldname, PyObject *newname) |
| 828 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 829 | PyObject *constants, *tmp; |
| 830 | Py_ssize_t i, n; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 831 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 832 | if (PyUnicode_Compare(co->co_filename, oldname)) |
| 833 | return; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 834 | |
Serhiy Storchaka | 576f132 | 2016-01-05 21:27:54 +0200 | [diff] [blame] | 835 | Py_INCREF(newname); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 836 | Py_XSETREF(co->co_filename, newname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 837 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 838 | constants = co->co_consts; |
| 839 | n = PyTuple_GET_SIZE(constants); |
| 840 | for (i = 0; i < n; i++) { |
| 841 | tmp = PyTuple_GET_ITEM(constants, i); |
| 842 | if (PyCode_Check(tmp)) |
| 843 | update_code_filenames((PyCodeObject *)tmp, |
| 844 | oldname, newname); |
| 845 | } |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 846 | } |
| 847 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 848 | static void |
| 849 | update_compiled_module(PyCodeObject *co, PyObject *newname) |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 850 | { |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 851 | PyObject *oldname; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 852 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 853 | if (PyUnicode_Compare(co->co_filename, newname) == 0) |
| 854 | return; |
Hirokazu Yamamoto | 4f447fb | 2009-03-04 01:52:10 +0000 | [diff] [blame] | 855 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 856 | oldname = co->co_filename; |
| 857 | Py_INCREF(oldname); |
| 858 | update_code_filenames(co, oldname, newname); |
| 859 | Py_DECREF(oldname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 860 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 861 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 862 | /*[clinic input] |
| 863 | _imp._fix_co_filename |
| 864 | |
| 865 | code: object(type="PyCodeObject *", subclass_of="&PyCode_Type") |
| 866 | Code object to change. |
| 867 | |
| 868 | path: unicode |
| 869 | File path to use. |
| 870 | / |
| 871 | |
| 872 | Changes code.co_filename to specify the passed-in file path. |
| 873 | [clinic start generated code]*/ |
| 874 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 875 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 876 | _imp__fix_co_filename_impl(PyObject *module, PyCodeObject *code, |
Larry Hastings | 89964c4 | 2015-04-14 18:07:59 -0400 | [diff] [blame] | 877 | PyObject *path) |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 878 | /*[clinic end generated code: output=1d002f100235587d input=895ba50e78b82f05]*/ |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 879 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 880 | { |
Brett Cannon | a6dec2e | 2014-01-10 07:43:55 -0500 | [diff] [blame] | 881 | update_compiled_module(code, path); |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 882 | |
| 883 | Py_RETURN_NONE; |
| 884 | } |
| 885 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 886 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 887 | /* Forward */ |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 888 | static const struct _frozen * find_frozen(PyObject *); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 889 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 890 | |
| 891 | /* Helper to test for built-in module */ |
| 892 | |
| 893 | static int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 894 | is_builtin(PyObject *name) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 895 | { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 896 | int i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 897 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 898 | if (_PyUnicode_EqualToASCIIString(name, PyImport_Inittab[i].name)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 899 | if (PyImport_Inittab[i].initfunc == NULL) |
| 900 | return -1; |
| 901 | else |
| 902 | return 1; |
| 903 | } |
| 904 | } |
| 905 | return 0; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 906 | } |
| 907 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 908 | |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 909 | /* 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] | 910 | possibly by fetching it from the path_importer_cache dict. If it |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 911 | 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] | 912 | that can handle the path item. Return None if no hook could; |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 913 | this tells our caller that the path based finder could not find |
| 914 | a finder for this path item. Cache the result in |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 915 | path_importer_cache. */ |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 916 | |
| 917 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 918 | get_path_importer(PyThreadState *tstate, PyObject *path_importer_cache, |
| 919 | PyObject *path_hooks, PyObject *p) |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 920 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 921 | PyObject *importer; |
| 922 | Py_ssize_t j, nhooks; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 923 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 924 | /* These conditions are the caller's responsibility: */ |
| 925 | assert(PyList_Check(path_hooks)); |
| 926 | assert(PyDict_Check(path_importer_cache)); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 927 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 928 | nhooks = PyList_Size(path_hooks); |
| 929 | if (nhooks < 0) |
| 930 | return NULL; /* Shouldn't happen */ |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 931 | |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 932 | importer = PyDict_GetItemWithError(path_importer_cache, p); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 933 | if (importer != NULL || _PyErr_Occurred(tstate)) { |
| 934 | Py_XINCREF(importer); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 935 | return importer; |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 936 | } |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 937 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 938 | /* set path_importer_cache[p] to None to avoid recursion */ |
| 939 | if (PyDict_SetItem(path_importer_cache, p, Py_None) != 0) |
| 940 | return NULL; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 941 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 942 | for (j = 0; j < nhooks; j++) { |
| 943 | PyObject *hook = PyList_GetItem(path_hooks, j); |
| 944 | if (hook == NULL) |
| 945 | return NULL; |
Petr Viktorin | ffd9753 | 2020-02-11 17:46:57 +0100 | [diff] [blame] | 946 | importer = PyObject_CallOneArg(hook, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 947 | if (importer != NULL) |
| 948 | break; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 949 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 950 | if (!_PyErr_ExceptionMatches(tstate, PyExc_ImportError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 951 | return NULL; |
| 952 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 953 | _PyErr_Clear(tstate); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | } |
| 955 | if (importer == NULL) { |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 956 | Py_RETURN_NONE; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 957 | } |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 958 | if (PyDict_SetItem(path_importer_cache, p, importer) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 959 | Py_DECREF(importer); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 960 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 961 | } |
| 962 | return importer; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 963 | } |
| 964 | |
Benjamin Peterson | e502451 | 2018-09-12 12:06:42 -0700 | [diff] [blame] | 965 | PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 966 | PyImport_GetImporter(PyObject *path) |
| 967 | { |
| 968 | PyThreadState *tstate = _PyThreadState_GET(); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 969 | PyObject *path_importer_cache = PySys_GetObject("path_importer_cache"); |
| 970 | PyObject *path_hooks = PySys_GetObject("path_hooks"); |
| 971 | if (path_importer_cache == NULL || path_hooks == NULL) { |
| 972 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 973 | } |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 974 | return get_path_importer(tstate, path_importer_cache, path_hooks, path); |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 975 | } |
| 976 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 977 | static PyObject* |
| 978 | create_builtin(PyThreadState *tstate, PyObject *name, PyObject *spec) |
| 979 | { |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 980 | PyObject *mod = import_find_extension(tstate, name, name); |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 981 | if (mod || _PyErr_Occurred(tstate)) { |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 982 | return mod; |
| 983 | } |
| 984 | |
| 985 | PyObject *modules = tstate->interp->modules; |
| 986 | for (struct _inittab *p = PyImport_Inittab; p->name != NULL; p++) { |
| 987 | if (_PyUnicode_EqualToASCIIString(name, p->name)) { |
| 988 | if (p->initfunc == NULL) { |
| 989 | /* Cannot re-init internal module ("sys" or "builtins") */ |
| 990 | return PyImport_AddModuleObject(name); |
| 991 | } |
| 992 | |
| 993 | mod = (*p->initfunc)(); |
| 994 | if (mod == NULL) { |
| 995 | return NULL; |
| 996 | } |
| 997 | |
| 998 | if (PyObject_TypeCheck(mod, &PyModuleDef_Type)) { |
| 999 | return PyModule_FromDefAndSpec((PyModuleDef*)mod, spec); |
| 1000 | } |
| 1001 | else { |
| 1002 | /* Remember pointer to module init function. */ |
| 1003 | PyModuleDef *def = PyModule_GetDef(mod); |
| 1004 | if (def == NULL) { |
| 1005 | return NULL; |
| 1006 | } |
| 1007 | |
| 1008 | def->m_base.m_init = p->initfunc; |
| 1009 | if (_PyImport_FixupExtensionObject(mod, name, name, |
| 1010 | modules) < 0) { |
| 1011 | return NULL; |
| 1012 | } |
| 1013 | return mod; |
| 1014 | } |
| 1015 | } |
| 1016 | } |
| 1017 | |
| 1018 | // not found |
| 1019 | Py_RETURN_NONE; |
| 1020 | } |
| 1021 | |
| 1022 | |
| 1023 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1024 | /*[clinic input] |
| 1025 | _imp.create_builtin |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1026 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1027 | spec: object |
| 1028 | / |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1029 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1030 | Create an extension module. |
| 1031 | [clinic start generated code]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1032 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1033 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1034 | _imp_create_builtin(PyObject *module, PyObject *spec) |
| 1035 | /*[clinic end generated code: output=ace7ff22271e6f39 input=37f966f890384e47]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1036 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1037 | PyThreadState *tstate = _PyThreadState_GET(); |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1038 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 1039 | PyObject *name = PyObject_GetAttrString(spec, "name"); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1040 | if (name == NULL) { |
| 1041 | return NULL; |
| 1042 | } |
| 1043 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 1044 | PyObject *mod = create_builtin(tstate, name, spec); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1045 | Py_DECREF(name); |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 1046 | return mod; |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1047 | } |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1048 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1049 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1050 | /* Frozen modules */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1051 | |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1052 | static const struct _frozen * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1053 | find_frozen(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1054 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1055 | const struct _frozen *p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1056 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1057 | if (name == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1058 | return NULL; |
Benjamin Peterson | d968e27 | 2008-11-05 22:48:33 +0000 | [diff] [blame] | 1059 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1060 | for (p = PyImport_FrozenModules; ; p++) { |
| 1061 | if (p->name == NULL) |
| 1062 | return NULL; |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1063 | if (_PyUnicode_EqualToASCIIString(name, p->name)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1064 | break; |
| 1065 | } |
| 1066 | return p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1067 | } |
| 1068 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1069 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1070 | get_frozen_object(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1071 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1072 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1073 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1074 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1075 | if (p == NULL) { |
| 1076 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1077 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1078 | name); |
| 1079 | return NULL; |
| 1080 | } |
| 1081 | if (p->code == NULL) { |
| 1082 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1083 | "Excluded frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1084 | name); |
| 1085 | return NULL; |
| 1086 | } |
| 1087 | size = p->size; |
| 1088 | if (size < 0) |
| 1089 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1090 | return PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1091 | } |
| 1092 | |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1093 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1094 | is_frozen_package(PyObject *name) |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1095 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1096 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1097 | int size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1098 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1099 | if (p == NULL) { |
| 1100 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1101 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1102 | name); |
| 1103 | return NULL; |
| 1104 | } |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1105 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1106 | size = p->size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1107 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1108 | if (size < 0) |
| 1109 | Py_RETURN_TRUE; |
| 1110 | else |
| 1111 | Py_RETURN_FALSE; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1112 | } |
| 1113 | |
| 1114 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1115 | /* Initialize a frozen module. |
Brett Cannon | 3c2ac44 | 2009-03-08 20:49:47 +0000 | [diff] [blame] | 1116 | 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] | 1117 | an exception set if the initialization failed. |
| 1118 | This function is also used from frozenmain.c */ |
Guido van Rossum | 0b34490 | 1995-02-07 15:35:27 +0000 | [diff] [blame] | 1119 | |
| 1120 | int |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1121 | PyImport_ImportFrozenModuleObject(PyObject *name) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1122 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1123 | PyThreadState *tstate = _PyThreadState_GET(); |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1124 | const struct _frozen *p; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1125 | PyObject *co, *m, *d; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1126 | int ispackage; |
| 1127 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1128 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1129 | p = find_frozen(name); |
| 1130 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1131 | if (p == NULL) |
| 1132 | return 0; |
| 1133 | if (p->code == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1134 | _PyErr_Format(tstate, PyExc_ImportError, |
| 1135 | "Excluded frozen object named %R", |
| 1136 | name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1137 | return -1; |
| 1138 | } |
| 1139 | size = p->size; |
| 1140 | ispackage = (size < 0); |
| 1141 | if (ispackage) |
| 1142 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1143 | co = PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1144 | if (co == NULL) |
| 1145 | return -1; |
| 1146 | if (!PyCode_Check(co)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1147 | _PyErr_Format(tstate, PyExc_TypeError, |
| 1148 | "frozen object %R is not a code object", |
| 1149 | name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1150 | goto err_return; |
| 1151 | } |
| 1152 | if (ispackage) { |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1153 | /* Set __path__ to the empty list */ |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1154 | PyObject *l; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1155 | int err; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1156 | m = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1157 | if (m == NULL) |
| 1158 | goto err_return; |
| 1159 | d = PyModule_GetDict(m); |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1160 | l = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1161 | if (l == NULL) { |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 1162 | Py_DECREF(m); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1163 | goto err_return; |
| 1164 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1165 | err = PyDict_SetItemString(d, "__path__", l); |
| 1166 | Py_DECREF(l); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 1167 | Py_DECREF(m); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1168 | if (err != 0) |
| 1169 | goto err_return; |
| 1170 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1171 | d = module_dict_for_exec(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1172 | if (d == NULL) { |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1173 | goto err_return; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1174 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1175 | m = exec_code_in_module(tstate, name, d, co); |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 1176 | Py_DECREF(d); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1177 | if (m == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1178 | goto err_return; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1179 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1180 | Py_DECREF(co); |
| 1181 | Py_DECREF(m); |
| 1182 | return 1; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1183 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1184 | err_return: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1185 | Py_DECREF(co); |
| 1186 | return -1; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1187 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1188 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1189 | int |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1190 | PyImport_ImportFrozenModule(const char *name) |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1191 | { |
| 1192 | PyObject *nameobj; |
| 1193 | int ret; |
| 1194 | nameobj = PyUnicode_InternFromString(name); |
| 1195 | if (nameobj == NULL) |
| 1196 | return -1; |
| 1197 | ret = PyImport_ImportFrozenModuleObject(nameobj); |
| 1198 | Py_DECREF(nameobj); |
| 1199 | return ret; |
| 1200 | } |
| 1201 | |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1202 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1203 | /* Import a module, either built-in, frozen, or external, and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 1204 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1205 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1206 | PyObject * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1207 | PyImport_ImportModule(const char *name) |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1208 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1209 | PyObject *pname; |
| 1210 | PyObject *result; |
Marc-André Lemburg | 3c61c35 | 2001-02-09 19:40:15 +0000 | [diff] [blame] | 1211 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1212 | pname = PyUnicode_FromString(name); |
| 1213 | if (pname == NULL) |
| 1214 | return NULL; |
| 1215 | result = PyImport_Import(pname); |
| 1216 | Py_DECREF(pname); |
| 1217 | return result; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1218 | } |
| 1219 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1220 | |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1221 | /* Import a module without blocking |
| 1222 | * |
| 1223 | * At first it tries to fetch the module from sys.modules. If the module was |
| 1224 | * never loaded before it loads it with PyImport_ImportModule() unless another |
| 1225 | * thread holds the import lock. In the latter case the function raises an |
| 1226 | * ImportError instead of blocking. |
| 1227 | * |
| 1228 | * Returns the module object with incremented ref count. |
| 1229 | */ |
| 1230 | PyObject * |
| 1231 | PyImport_ImportModuleNoBlock(const char *name) |
| 1232 | { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1233 | return PyImport_ImportModule(name); |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1234 | } |
| 1235 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1236 | |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1237 | /* Remove importlib frames from the traceback, |
| 1238 | * except in Verbose mode. */ |
| 1239 | static void |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1240 | remove_importlib_frames(PyThreadState *tstate) |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1241 | { |
| 1242 | const char *importlib_filename = "<frozen importlib._bootstrap>"; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1243 | const char *external_filename = "<frozen importlib._bootstrap_external>"; |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1244 | const char *remove_frames = "_call_with_frames_removed"; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1245 | int always_trim = 0; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1246 | int in_importlib = 0; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1247 | PyObject *exception, *value, *base_tb, *tb; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1248 | PyObject **prev_link, **outer_link = NULL; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1249 | |
| 1250 | /* Synopsis: if it's an ImportError, we trim all importlib chunks |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1251 | from the traceback. We always trim chunks |
| 1252 | which end with a call to "_call_with_frames_removed". */ |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1253 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1254 | _PyErr_Fetch(tstate, &exception, &value, &base_tb); |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 1255 | if (!exception || _PyInterpreterState_GetConfig(tstate->interp)->verbose) { |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1256 | goto done; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1257 | } |
| 1258 | |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1259 | if (PyType_IsSubtype((PyTypeObject *) exception, |
| 1260 | (PyTypeObject *) PyExc_ImportError)) |
| 1261 | always_trim = 1; |
| 1262 | |
| 1263 | prev_link = &base_tb; |
| 1264 | tb = base_tb; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1265 | while (tb != NULL) { |
| 1266 | PyTracebackObject *traceback = (PyTracebackObject *)tb; |
| 1267 | PyObject *next = (PyObject *) traceback->tb_next; |
| 1268 | PyFrameObject *frame = traceback->tb_frame; |
Victor Stinner | a42ca74 | 2020-04-28 19:01:31 +0200 | [diff] [blame] | 1269 | PyCodeObject *code = PyFrame_GetCode(frame); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1270 | int now_in_importlib; |
| 1271 | |
| 1272 | assert(PyTraceBack_Check(tb)); |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1273 | now_in_importlib = _PyUnicode_EqualToASCIIString(code->co_filename, importlib_filename) || |
| 1274 | _PyUnicode_EqualToASCIIString(code->co_filename, external_filename); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1275 | if (now_in_importlib && !in_importlib) { |
| 1276 | /* This is the link to this chunk of importlib tracebacks */ |
| 1277 | outer_link = prev_link; |
| 1278 | } |
| 1279 | in_importlib = now_in_importlib; |
| 1280 | |
| 1281 | if (in_importlib && |
| 1282 | (always_trim || |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1283 | _PyUnicode_EqualToASCIIString(code->co_name, remove_frames))) { |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1284 | Py_XINCREF(next); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 1285 | Py_XSETREF(*outer_link, next); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1286 | prev_link = outer_link; |
| 1287 | } |
| 1288 | else { |
| 1289 | prev_link = (PyObject **) &traceback->tb_next; |
| 1290 | } |
Victor Stinner | 8852ad4 | 2020-04-29 01:28:13 +0200 | [diff] [blame] | 1291 | Py_DECREF(code); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1292 | tb = next; |
| 1293 | } |
| 1294 | done: |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1295 | _PyErr_Restore(tstate, exception, value, base_tb); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1296 | } |
| 1297 | |
| 1298 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1299 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1300 | resolve_name(PyThreadState *tstate, PyObject *name, PyObject *globals, int level) |
Thomas Wouters | f7f438b | 2006-02-28 16:09:29 +0000 | [diff] [blame] | 1301 | { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1302 | _Py_IDENTIFIER(__package__); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1303 | _Py_IDENTIFIER(__name__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1304 | _Py_IDENTIFIER(parent); |
| 1305 | PyObject *abs_name; |
| 1306 | PyObject *package = NULL; |
| 1307 | PyObject *spec; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1308 | Py_ssize_t last_dot; |
| 1309 | PyObject *base; |
| 1310 | int level_up; |
| 1311 | |
| 1312 | if (globals == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1313 | _PyErr_SetString(tstate, PyExc_KeyError, "'__name__' not in globals"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1314 | goto error; |
| 1315 | } |
| 1316 | if (!PyDict_Check(globals)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1317 | _PyErr_SetString(tstate, PyExc_TypeError, "globals must be a dict"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1318 | goto error; |
| 1319 | } |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1320 | package = _PyDict_GetItemIdWithError(globals, &PyId___package__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1321 | if (package == Py_None) { |
| 1322 | package = NULL; |
| 1323 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1324 | else if (package == NULL && _PyErr_Occurred(tstate)) { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1325 | goto error; |
| 1326 | } |
| 1327 | spec = _PyDict_GetItemIdWithError(globals, &PyId___spec__); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1328 | if (spec == NULL && _PyErr_Occurred(tstate)) { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1329 | goto error; |
| 1330 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1331 | |
| 1332 | if (package != NULL) { |
| 1333 | Py_INCREF(package); |
| 1334 | if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1335 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1336 | "package must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1337 | goto error; |
| 1338 | } |
| 1339 | else if (spec != NULL && spec != Py_None) { |
| 1340 | int equal; |
| 1341 | PyObject *parent = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1342 | if (parent == NULL) { |
| 1343 | goto error; |
| 1344 | } |
| 1345 | |
| 1346 | equal = PyObject_RichCompareBool(package, parent, Py_EQ); |
| 1347 | Py_DECREF(parent); |
| 1348 | if (equal < 0) { |
| 1349 | goto error; |
| 1350 | } |
| 1351 | else if (equal == 0) { |
| 1352 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1353 | "__package__ != __spec__.parent", 1) < 0) { |
| 1354 | goto error; |
| 1355 | } |
| 1356 | } |
| 1357 | } |
| 1358 | } |
| 1359 | else if (spec != NULL && spec != Py_None) { |
| 1360 | package = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1361 | if (package == NULL) { |
| 1362 | goto error; |
| 1363 | } |
| 1364 | else if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1365 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1366 | "__spec__.parent must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1367 | goto error; |
| 1368 | } |
| 1369 | } |
| 1370 | else { |
| 1371 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1372 | "can't resolve package from __spec__ or __package__, " |
| 1373 | "falling back on __name__ and __path__", 1) < 0) { |
| 1374 | goto error; |
| 1375 | } |
| 1376 | |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1377 | package = _PyDict_GetItemIdWithError(globals, &PyId___name__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1378 | if (package == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1379 | if (!_PyErr_Occurred(tstate)) { |
| 1380 | _PyErr_SetString(tstate, PyExc_KeyError, |
| 1381 | "'__name__' not in globals"); |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1382 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1383 | goto error; |
| 1384 | } |
| 1385 | |
| 1386 | Py_INCREF(package); |
| 1387 | if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1388 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1389 | "__name__ must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1390 | goto error; |
| 1391 | } |
| 1392 | |
Serhiy Storchaka | b510e10 | 2020-10-26 12:47:57 +0200 | [diff] [blame] | 1393 | int haspath = _PyDict_ContainsId(globals, &PyId___path__); |
| 1394 | if (haspath < 0) { |
| 1395 | goto error; |
| 1396 | } |
| 1397 | if (!haspath) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1398 | Py_ssize_t dot; |
| 1399 | |
Serhiy Storchaka | b510e10 | 2020-10-26 12:47:57 +0200 | [diff] [blame] | 1400 | if (PyUnicode_READY(package) < 0) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1401 | goto error; |
| 1402 | } |
| 1403 | |
| 1404 | dot = PyUnicode_FindChar(package, '.', |
| 1405 | 0, PyUnicode_GET_LENGTH(package), -1); |
| 1406 | if (dot == -2) { |
| 1407 | goto error; |
| 1408 | } |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1409 | else if (dot == -1) { |
| 1410 | goto no_parent_error; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1411 | } |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1412 | PyObject *substr = PyUnicode_Substring(package, 0, dot); |
| 1413 | if (substr == NULL) { |
| 1414 | goto error; |
| 1415 | } |
| 1416 | Py_SETREF(package, substr); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1417 | } |
| 1418 | } |
| 1419 | |
| 1420 | last_dot = PyUnicode_GET_LENGTH(package); |
| 1421 | if (last_dot == 0) { |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1422 | goto no_parent_error; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1423 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1424 | |
| 1425 | for (level_up = 1; level_up < level; level_up += 1) { |
| 1426 | last_dot = PyUnicode_FindChar(package, '.', 0, last_dot, -1); |
| 1427 | if (last_dot == -2) { |
| 1428 | goto error; |
| 1429 | } |
| 1430 | else if (last_dot == -1) { |
Ngalim Siregar | c5fa449 | 2019-08-03 12:46:02 +0700 | [diff] [blame] | 1431 | _PyErr_SetString(tstate, PyExc_ImportError, |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1432 | "attempted relative import beyond top-level " |
| 1433 | "package"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1434 | goto error; |
| 1435 | } |
| 1436 | } |
| 1437 | |
| 1438 | base = PyUnicode_Substring(package, 0, last_dot); |
| 1439 | Py_DECREF(package); |
| 1440 | if (base == NULL || PyUnicode_GET_LENGTH(name) == 0) { |
| 1441 | return base; |
| 1442 | } |
| 1443 | |
| 1444 | abs_name = PyUnicode_FromFormat("%U.%U", base, name); |
| 1445 | Py_DECREF(base); |
| 1446 | return abs_name; |
| 1447 | |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1448 | no_parent_error: |
| 1449 | _PyErr_SetString(tstate, PyExc_ImportError, |
| 1450 | "attempted relative import " |
| 1451 | "with no known parent package"); |
| 1452 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1453 | error: |
| 1454 | Py_XDECREF(package); |
| 1455 | return NULL; |
| 1456 | } |
| 1457 | |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1458 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1459 | import_find_and_load(PyThreadState *tstate, PyObject *abs_name) |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1460 | { |
| 1461 | _Py_IDENTIFIER(_find_and_load); |
| 1462 | PyObject *mod = NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1463 | PyInterpreterState *interp = tstate->interp; |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 1464 | int import_time = _PyInterpreterState_GetConfig(interp)->import_time; |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1465 | static int import_level; |
| 1466 | static _PyTime_t accumulated; |
| 1467 | |
| 1468 | _PyTime_t t1 = 0, accumulated_copy = accumulated; |
| 1469 | |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1470 | PyObject *sys_path = PySys_GetObject("path"); |
| 1471 | PyObject *sys_meta_path = PySys_GetObject("meta_path"); |
| 1472 | PyObject *sys_path_hooks = PySys_GetObject("path_hooks"); |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1473 | if (_PySys_Audit(tstate, "import", "OOOOO", |
| 1474 | abs_name, Py_None, sys_path ? sys_path : Py_None, |
| 1475 | sys_meta_path ? sys_meta_path : Py_None, |
| 1476 | sys_path_hooks ? sys_path_hooks : Py_None) < 0) { |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1477 | return NULL; |
| 1478 | } |
| 1479 | |
| 1480 | |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1481 | /* XOptions is initialized after first some imports. |
| 1482 | * So we can't have negative cache before completed initialization. |
| 1483 | * Anyway, importlib._find_and_load is much slower than |
| 1484 | * _PyDict_GetItemIdWithError(). |
| 1485 | */ |
| 1486 | if (import_time) { |
| 1487 | static int header = 1; |
| 1488 | if (header) { |
| 1489 | fputs("import time: self [us] | cumulative | imported package\n", |
| 1490 | stderr); |
| 1491 | header = 0; |
| 1492 | } |
| 1493 | |
| 1494 | import_level++; |
| 1495 | t1 = _PyTime_GetPerfCounter(); |
| 1496 | accumulated = 0; |
| 1497 | } |
| 1498 | |
| 1499 | if (PyDTrace_IMPORT_FIND_LOAD_START_ENABLED()) |
Andy Lester | fc2d8d6 | 2020-03-30 15:19:14 -0500 | [diff] [blame] | 1500 | PyDTrace_IMPORT_FIND_LOAD_START(PyUnicode_AsUTF8(abs_name)); |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1501 | |
| 1502 | mod = _PyObject_CallMethodIdObjArgs(interp->importlib, |
| 1503 | &PyId__find_and_load, abs_name, |
| 1504 | interp->import_func, NULL); |
| 1505 | |
| 1506 | if (PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED()) |
Andy Lester | fc2d8d6 | 2020-03-30 15:19:14 -0500 | [diff] [blame] | 1507 | PyDTrace_IMPORT_FIND_LOAD_DONE(PyUnicode_AsUTF8(abs_name), |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1508 | mod != NULL); |
| 1509 | |
| 1510 | if (import_time) { |
| 1511 | _PyTime_t cum = _PyTime_GetPerfCounter() - t1; |
| 1512 | |
| 1513 | import_level--; |
| 1514 | fprintf(stderr, "import time: %9ld | %10ld | %*s%s\n", |
| 1515 | (long)_PyTime_AsMicroseconds(cum - accumulated, _PyTime_ROUND_CEILING), |
| 1516 | (long)_PyTime_AsMicroseconds(cum, _PyTime_ROUND_CEILING), |
| 1517 | import_level*2, "", PyUnicode_AsUTF8(abs_name)); |
| 1518 | |
| 1519 | accumulated = accumulated_copy + cum; |
| 1520 | } |
| 1521 | |
| 1522 | return mod; |
| 1523 | } |
| 1524 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1525 | PyObject * |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1526 | PyImport_GetModule(PyObject *name) |
| 1527 | { |
| 1528 | PyThreadState *tstate = _PyThreadState_GET(); |
| 1529 | PyObject *mod; |
| 1530 | |
| 1531 | mod = import_get_module(tstate, name); |
| 1532 | if (mod != NULL && mod != Py_None) { |
| 1533 | if (import_ensure_initialized(tstate, mod, name) < 0) { |
| 1534 | Py_DECREF(mod); |
| 1535 | remove_importlib_frames(tstate); |
| 1536 | return NULL; |
| 1537 | } |
| 1538 | } |
| 1539 | return mod; |
| 1540 | } |
| 1541 | |
| 1542 | PyObject * |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1543 | PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals, |
| 1544 | PyObject *locals, PyObject *fromlist, |
| 1545 | int level) |
| 1546 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1547 | PyThreadState *tstate = _PyThreadState_GET(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1548 | _Py_IDENTIFIER(_handle_fromlist); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1549 | PyObject *abs_name = NULL; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1550 | PyObject *final_mod = NULL; |
| 1551 | PyObject *mod = NULL; |
| 1552 | PyObject *package = NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1553 | PyInterpreterState *interp = tstate->interp; |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1554 | int has_from; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1555 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1556 | if (name == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1557 | _PyErr_SetString(tstate, PyExc_ValueError, "Empty module name"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1558 | goto error; |
| 1559 | } |
| 1560 | |
| 1561 | /* The below code is importlib.__import__() & _gcd_import(), ported to C |
| 1562 | for added performance. */ |
| 1563 | |
| 1564 | if (!PyUnicode_Check(name)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1565 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1566 | "module name must be a string"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1567 | goto error; |
| 1568 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1569 | if (PyUnicode_READY(name) < 0) { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1570 | goto error; |
| 1571 | } |
| 1572 | if (level < 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1573 | _PyErr_SetString(tstate, PyExc_ValueError, "level must be >= 0"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1574 | goto error; |
| 1575 | } |
Brett Cannon | 849113a | 2016-01-22 15:25:50 -0800 | [diff] [blame] | 1576 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1577 | if (level > 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1578 | abs_name = resolve_name(tstate, name, globals, level); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1579 | if (abs_name == NULL) |
Brett Cannon | 9fa8126 | 2016-01-22 16:39:02 -0800 | [diff] [blame] | 1580 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1581 | } |
| 1582 | else { /* level == 0 */ |
| 1583 | if (PyUnicode_GET_LENGTH(name) == 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1584 | _PyErr_SetString(tstate, PyExc_ValueError, "Empty module name"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1585 | goto error; |
| 1586 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1587 | abs_name = name; |
| 1588 | Py_INCREF(abs_name); |
| 1589 | } |
| 1590 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1591 | mod = import_get_module(tstate, abs_name); |
| 1592 | if (mod == NULL && _PyErr_Occurred(tstate)) { |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1593 | goto error; |
| 1594 | } |
| 1595 | |
Serhiy Storchaka | b4baace | 2017-07-06 08:09:03 +0300 | [diff] [blame] | 1596 | if (mod != NULL && mod != Py_None) { |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1597 | if (import_ensure_initialized(tstate, mod, name) < 0) { |
| 1598 | goto error; |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1599 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1600 | } |
| 1601 | else { |
Neil Schemenauer | 11cc289 | 2017-12-07 16:24:59 -0800 | [diff] [blame] | 1602 | Py_XDECREF(mod); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1603 | mod = import_find_and_load(tstate, abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1604 | if (mod == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1605 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1606 | } |
| 1607 | } |
| 1608 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1609 | has_from = 0; |
| 1610 | if (fromlist != NULL && fromlist != Py_None) { |
| 1611 | has_from = PyObject_IsTrue(fromlist); |
| 1612 | if (has_from < 0) |
| 1613 | goto error; |
| 1614 | } |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1615 | if (!has_from) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1616 | Py_ssize_t len = PyUnicode_GET_LENGTH(name); |
| 1617 | if (level == 0 || len > 0) { |
| 1618 | Py_ssize_t dot; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1619 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1620 | dot = PyUnicode_FindChar(name, '.', 0, len, 1); |
| 1621 | if (dot == -2) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1622 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1623 | } |
| 1624 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1625 | if (dot == -1) { |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1626 | /* No dot in module name, simple exit */ |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1627 | final_mod = mod; |
| 1628 | Py_INCREF(mod); |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1629 | goto error; |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1630 | } |
| 1631 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1632 | if (level == 0) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1633 | PyObject *front = PyUnicode_Substring(name, 0, dot); |
| 1634 | if (front == NULL) { |
| 1635 | goto error; |
| 1636 | } |
| 1637 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1638 | final_mod = PyImport_ImportModuleLevelObject(front, NULL, NULL, NULL, 0); |
Antoine Pitrou | b78174c | 2012-05-06 17:15:23 +0200 | [diff] [blame] | 1639 | Py_DECREF(front); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1640 | } |
| 1641 | else { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1642 | Py_ssize_t cut_off = len - dot; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1643 | Py_ssize_t abs_name_len = PyUnicode_GET_LENGTH(abs_name); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1644 | PyObject *to_return = PyUnicode_Substring(abs_name, 0, |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1645 | abs_name_len - cut_off); |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1646 | if (to_return == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1647 | goto error; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1648 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1649 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1650 | final_mod = import_get_module(tstate, to_return); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1651 | Py_DECREF(to_return); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1652 | if (final_mod == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1653 | if (!_PyErr_Occurred(tstate)) { |
| 1654 | _PyErr_Format(tstate, PyExc_KeyError, |
| 1655 | "%R not in sys.modules as expected", |
| 1656 | to_return); |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1657 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1658 | goto error; |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1659 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1660 | } |
| 1661 | } |
| 1662 | else { |
| 1663 | final_mod = mod; |
| 1664 | Py_INCREF(mod); |
| 1665 | } |
| 1666 | } |
| 1667 | else { |
Serhiy Storchaka | 4e24425 | 2018-03-11 10:52:37 +0200 | [diff] [blame] | 1668 | PyObject *path; |
| 1669 | if (_PyObject_LookupAttrId(mod, &PyId___path__, &path) < 0) { |
| 1670 | goto error; |
| 1671 | } |
| 1672 | if (path) { |
| 1673 | Py_DECREF(path); |
| 1674 | final_mod = _PyObject_CallMethodIdObjArgs( |
| 1675 | interp->importlib, &PyId__handle_fromlist, |
| 1676 | mod, fromlist, interp->import_func, NULL); |
| 1677 | } |
| 1678 | else { |
| 1679 | final_mod = mod; |
| 1680 | Py_INCREF(mod); |
| 1681 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1682 | } |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1683 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1684 | error: |
| 1685 | Py_XDECREF(abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1686 | Py_XDECREF(mod); |
| 1687 | Py_XDECREF(package); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1688 | if (final_mod == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1689 | remove_importlib_frames(tstate); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1690 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1691 | return final_mod; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 1692 | } |
| 1693 | |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1694 | PyObject * |
Benjamin Peterson | 04778a8 | 2011-05-25 09:29:00 -0500 | [diff] [blame] | 1695 | PyImport_ImportModuleLevel(const char *name, PyObject *globals, PyObject *locals, |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1696 | PyObject *fromlist, int level) |
| 1697 | { |
| 1698 | PyObject *nameobj, *mod; |
| 1699 | nameobj = PyUnicode_FromString(name); |
| 1700 | if (nameobj == NULL) |
| 1701 | return NULL; |
| 1702 | mod = PyImport_ImportModuleLevelObject(nameobj, globals, locals, |
| 1703 | fromlist, level); |
| 1704 | Py_DECREF(nameobj); |
| 1705 | return mod; |
| 1706 | } |
| 1707 | |
| 1708 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1709 | /* Re-import a module of any kind and return its module object, WITH |
| 1710 | INCREMENTED REFERENCE COUNT */ |
| 1711 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1712 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1713 | PyImport_ReloadModule(PyObject *m) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1714 | { |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1715 | _Py_IDENTIFIER(importlib); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1716 | _Py_IDENTIFIER(reload); |
| 1717 | PyObject *reloaded_module = NULL; |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1718 | PyObject *importlib = _PyImport_GetModuleId(&PyId_importlib); |
| 1719 | if (importlib == NULL) { |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1720 | if (PyErr_Occurred()) { |
| 1721 | return NULL; |
| 1722 | } |
| 1723 | |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1724 | importlib = PyImport_ImportModule("importlib"); |
| 1725 | if (importlib == NULL) { |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1726 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1727 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1728 | } |
Victor Stinner | ad3c03b | 2011-03-14 09:21:33 -0400 | [diff] [blame] | 1729 | |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1730 | reloaded_module = _PyObject_CallMethodIdOneArg(importlib, &PyId_reload, m); |
| 1731 | Py_DECREF(importlib); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1732 | return reloaded_module; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1733 | } |
| 1734 | |
| 1735 | |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1736 | /* Higher-level import emulator which emulates the "import" statement |
| 1737 | more accurately -- it invokes the __import__() function from the |
| 1738 | builtins of the current globals. This means that the import is |
| 1739 | done using whatever import hooks are installed in the current |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1740 | environment. |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 1741 | A dummy list ["__doc__"] is passed as the 4th argument so that |
Neal Norwitz | 80e7f27 | 2007-08-26 06:45:23 +0000 | [diff] [blame] | 1742 | e.g. PyImport_Import(PyUnicode_FromString("win32com.client.gencache")) |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 1743 | will return <module "gencache"> instead of <module "win32com">. */ |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1744 | |
| 1745 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1746 | PyImport_Import(PyObject *module_name) |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1747 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1748 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1749 | static PyObject *silly_list = NULL; |
| 1750 | static PyObject *builtins_str = NULL; |
| 1751 | static PyObject *import_str = NULL; |
| 1752 | PyObject *globals = NULL; |
| 1753 | PyObject *import = NULL; |
| 1754 | PyObject *builtins = NULL; |
| 1755 | PyObject *r = NULL; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1756 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1757 | /* Initialize constant string objects */ |
| 1758 | if (silly_list == NULL) { |
| 1759 | import_str = PyUnicode_InternFromString("__import__"); |
| 1760 | if (import_str == NULL) |
| 1761 | return NULL; |
| 1762 | builtins_str = PyUnicode_InternFromString("__builtins__"); |
| 1763 | if (builtins_str == NULL) |
| 1764 | return NULL; |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1765 | silly_list = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1766 | if (silly_list == NULL) |
| 1767 | return NULL; |
| 1768 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1769 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1770 | /* Get the builtins from current globals */ |
| 1771 | globals = PyEval_GetGlobals(); |
| 1772 | if (globals != NULL) { |
| 1773 | Py_INCREF(globals); |
| 1774 | builtins = PyObject_GetItem(globals, builtins_str); |
| 1775 | if (builtins == NULL) |
| 1776 | goto err; |
| 1777 | } |
| 1778 | else { |
| 1779 | /* No globals -- use standard builtins, and fake globals */ |
| 1780 | builtins = PyImport_ImportModuleLevel("builtins", |
| 1781 | NULL, NULL, NULL, 0); |
| 1782 | if (builtins == NULL) |
| 1783 | return NULL; |
| 1784 | globals = Py_BuildValue("{OO}", builtins_str, builtins); |
| 1785 | if (globals == NULL) |
| 1786 | goto err; |
| 1787 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1788 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1789 | /* Get the __import__ function from the builtins */ |
| 1790 | if (PyDict_Check(builtins)) { |
| 1791 | import = PyObject_GetItem(builtins, import_str); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1792 | if (import == NULL) { |
| 1793 | _PyErr_SetObject(tstate, PyExc_KeyError, import_str); |
| 1794 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1795 | } |
| 1796 | else |
| 1797 | import = PyObject_GetAttr(builtins, import_str); |
| 1798 | if (import == NULL) |
| 1799 | goto err; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1800 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1801 | /* Call the __import__ function with the proper argument list |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1802 | Always use absolute import here. |
| 1803 | Calling for side-effect of import. */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1804 | r = PyObject_CallFunction(import, "OOOOi", module_name, globals, |
| 1805 | globals, silly_list, 0, NULL); |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 1806 | if (r == NULL) |
| 1807 | goto err; |
| 1808 | Py_DECREF(r); |
| 1809 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1810 | r = import_get_module(tstate, module_name); |
| 1811 | if (r == NULL && !_PyErr_Occurred(tstate)) { |
| 1812 | _PyErr_SetObject(tstate, PyExc_KeyError, module_name); |
Serhiy Storchaka | 145541c | 2017-06-15 20:54:38 +0300 | [diff] [blame] | 1813 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1814 | |
| 1815 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1816 | Py_XDECREF(globals); |
| 1817 | Py_XDECREF(builtins); |
| 1818 | Py_XDECREF(import); |
Tim Peters | 50d8d37 | 2001-02-28 05:34:27 +0000 | [diff] [blame] | 1819 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1820 | return r; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1821 | } |
| 1822 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1823 | /*[clinic input] |
| 1824 | _imp.extension_suffixes |
| 1825 | |
| 1826 | Returns the list of file suffixes used to identify extension modules. |
| 1827 | [clinic start generated code]*/ |
| 1828 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1829 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1830 | _imp_extension_suffixes_impl(PyObject *module) |
| 1831 | /*[clinic end generated code: output=0bf346e25a8f0cd3 input=ecdeeecfcb6f839e]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1832 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1833 | PyObject *list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1834 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1835 | list = PyList_New(0); |
| 1836 | if (list == NULL) |
| 1837 | return NULL; |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1838 | #ifdef HAVE_DYNAMIC_LOADING |
Stéphane Wirtel | 0d765e3 | 2019-03-20 00:37:20 +0100 | [diff] [blame] | 1839 | const char *suffix; |
| 1840 | unsigned int index = 0; |
| 1841 | |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1842 | while ((suffix = _PyImport_DynLoadFiletab[index])) { |
| 1843 | PyObject *item = PyUnicode_FromString(suffix); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1844 | if (item == NULL) { |
| 1845 | Py_DECREF(list); |
| 1846 | return NULL; |
| 1847 | } |
| 1848 | if (PyList_Append(list, item) < 0) { |
| 1849 | Py_DECREF(list); |
| 1850 | Py_DECREF(item); |
| 1851 | return NULL; |
| 1852 | } |
| 1853 | Py_DECREF(item); |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1854 | index += 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1855 | } |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 1856 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1857 | return list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1858 | } |
| 1859 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1860 | /*[clinic input] |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1861 | _imp.init_frozen |
| 1862 | |
| 1863 | name: unicode |
| 1864 | / |
| 1865 | |
| 1866 | Initializes a frozen module. |
| 1867 | [clinic start generated code]*/ |
| 1868 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1869 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1870 | _imp_init_frozen_impl(PyObject *module, PyObject *name) |
| 1871 | /*[clinic end generated code: output=fc0511ed869fd69c input=13019adfc04f3fb3]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1872 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1873 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1874 | int ret; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1875 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1876 | ret = PyImport_ImportFrozenModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1877 | if (ret < 0) |
| 1878 | return NULL; |
| 1879 | if (ret == 0) { |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 1880 | Py_RETURN_NONE; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1881 | } |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 1882 | return import_add_module(tstate, name); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1883 | } |
| 1884 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1885 | /*[clinic input] |
| 1886 | _imp.get_frozen_object |
| 1887 | |
| 1888 | name: unicode |
| 1889 | / |
| 1890 | |
| 1891 | Create a code object for a frozen module. |
| 1892 | [clinic start generated code]*/ |
| 1893 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1894 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1895 | _imp_get_frozen_object_impl(PyObject *module, PyObject *name) |
| 1896 | /*[clinic end generated code: output=2568cc5b7aa0da63 input=ed689bc05358fdbd]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1897 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1898 | return get_frozen_object(name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1899 | } |
| 1900 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1901 | /*[clinic input] |
| 1902 | _imp.is_frozen_package |
| 1903 | |
| 1904 | name: unicode |
| 1905 | / |
| 1906 | |
| 1907 | Returns True if the module name is of a frozen package. |
| 1908 | [clinic start generated code]*/ |
| 1909 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1910 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1911 | _imp_is_frozen_package_impl(PyObject *module, PyObject *name) |
| 1912 | /*[clinic end generated code: output=e70cbdb45784a1c9 input=81b6cdecd080fbb8]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1913 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1914 | return is_frozen_package(name); |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1915 | } |
| 1916 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1917 | /*[clinic input] |
| 1918 | _imp.is_builtin |
| 1919 | |
| 1920 | name: unicode |
| 1921 | / |
| 1922 | |
| 1923 | Returns True if the module name corresponds to a built-in module. |
| 1924 | [clinic start generated code]*/ |
| 1925 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1926 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1927 | _imp_is_builtin_impl(PyObject *module, PyObject *name) |
| 1928 | /*[clinic end generated code: output=3bfd1162e2d3be82 input=86befdac021dd1c7]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1929 | { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1930 | return PyLong_FromLong(is_builtin(name)); |
| 1931 | } |
| 1932 | |
| 1933 | /*[clinic input] |
| 1934 | _imp.is_frozen |
| 1935 | |
| 1936 | name: unicode |
| 1937 | / |
| 1938 | |
| 1939 | Returns True if the module name corresponds to a frozen module. |
| 1940 | [clinic start generated code]*/ |
| 1941 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1942 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1943 | _imp_is_frozen_impl(PyObject *module, PyObject *name) |
| 1944 | /*[clinic end generated code: output=01f408f5ec0f2577 input=7301dbca1897d66b]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1945 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1946 | const struct _frozen *p; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1947 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1948 | p = find_frozen(name); |
| 1949 | return PyBool_FromLong((long) (p == NULL ? 0 : p->size)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1950 | } |
| 1951 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 1952 | /* Common implementation for _imp.exec_dynamic and _imp.exec_builtin */ |
| 1953 | static int |
| 1954 | exec_builtin_or_dynamic(PyObject *mod) { |
| 1955 | PyModuleDef *def; |
| 1956 | void *state; |
| 1957 | |
| 1958 | if (!PyModule_Check(mod)) { |
| 1959 | return 0; |
| 1960 | } |
| 1961 | |
| 1962 | def = PyModule_GetDef(mod); |
| 1963 | if (def == NULL) { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 1964 | return 0; |
| 1965 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 1966 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 1967 | state = PyModule_GetState(mod); |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 1968 | if (state) { |
| 1969 | /* Already initialized; skip reload */ |
| 1970 | return 0; |
| 1971 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 1972 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 1973 | return PyModule_ExecDef(mod, def); |
| 1974 | } |
| 1975 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 1976 | #ifdef HAVE_DYNAMIC_LOADING |
| 1977 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1978 | /*[clinic input] |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1979 | _imp.create_dynamic |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1980 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1981 | spec: object |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1982 | file: object = NULL |
| 1983 | / |
| 1984 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1985 | Create an extension module. |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1986 | [clinic start generated code]*/ |
| 1987 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1988 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1989 | _imp_create_dynamic_impl(PyObject *module, PyObject *spec, PyObject *file) |
| 1990 | /*[clinic end generated code: output=83249b827a4fde77 input=c31b954f4cf4e09d]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1991 | { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1992 | PyObject *mod, *name, *path; |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 1993 | FILE *fp; |
| 1994 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1995 | name = PyObject_GetAttrString(spec, "name"); |
| 1996 | if (name == NULL) { |
| 1997 | return NULL; |
| 1998 | } |
| 1999 | |
| 2000 | path = PyObject_GetAttrString(spec, "origin"); |
| 2001 | if (path == NULL) { |
| 2002 | Py_DECREF(name); |
| 2003 | return NULL; |
| 2004 | } |
| 2005 | |
Serhiy Storchaka | 4db8988 | 2021-01-12 16:43:32 +0200 | [diff] [blame] | 2006 | PyThreadState *tstate = _PyThreadState_GET(); |
| 2007 | mod = import_find_extension(tstate, name, path); |
Serhiy Storchaka | 8905fcc | 2018-12-11 08:38:03 +0200 | [diff] [blame] | 2008 | if (mod != NULL || PyErr_Occurred()) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2009 | Py_DECREF(name); |
| 2010 | Py_DECREF(path); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2011 | return mod; |
| 2012 | } |
| 2013 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2014 | if (file != NULL) { |
| 2015 | fp = _Py_fopen_obj(path, "r"); |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2016 | if (fp == NULL) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2017 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2018 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2019 | return NULL; |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2020 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2021 | } |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2022 | else |
| 2023 | fp = NULL; |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2024 | |
| 2025 | mod = _PyImport_LoadDynamicModuleWithSpec(spec, fp); |
| 2026 | |
| 2027 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2028 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2029 | if (fp) |
| 2030 | fclose(fp); |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2031 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2032 | } |
| 2033 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2034 | /*[clinic input] |
| 2035 | _imp.exec_dynamic -> int |
| 2036 | |
| 2037 | mod: object |
| 2038 | / |
| 2039 | |
| 2040 | Initialize an extension module. |
| 2041 | [clinic start generated code]*/ |
| 2042 | |
| 2043 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2044 | _imp_exec_dynamic_impl(PyObject *module, PyObject *mod) |
| 2045 | /*[clinic end generated code: output=f5720ac7b465877d input=9fdbfcb250280d3a]*/ |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2046 | { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2047 | return exec_builtin_or_dynamic(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2048 | } |
| 2049 | |
| 2050 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 2051 | #endif /* HAVE_DYNAMIC_LOADING */ |
| 2052 | |
Larry Hastings | 7726ac9 | 2014-01-31 22:03:12 -0800 | [diff] [blame] | 2053 | /*[clinic input] |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2054 | _imp.exec_builtin -> int |
| 2055 | |
| 2056 | mod: object |
| 2057 | / |
| 2058 | |
| 2059 | Initialize a built-in module. |
| 2060 | [clinic start generated code]*/ |
| 2061 | |
| 2062 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2063 | _imp_exec_builtin_impl(PyObject *module, PyObject *mod) |
| 2064 | /*[clinic end generated code: output=0262447b240c038e input=7beed5a2f12a60ca]*/ |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2065 | { |
| 2066 | return exec_builtin_or_dynamic(mod); |
| 2067 | } |
| 2068 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2069 | /*[clinic input] |
| 2070 | _imp.source_hash |
| 2071 | |
| 2072 | key: long |
| 2073 | source: Py_buffer |
| 2074 | [clinic start generated code]*/ |
| 2075 | |
| 2076 | static PyObject * |
| 2077 | _imp_source_hash_impl(PyObject *module, long key, Py_buffer *source) |
| 2078 | /*[clinic end generated code: output=edb292448cf399ea input=9aaad1e590089789]*/ |
| 2079 | { |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2080 | union { |
| 2081 | uint64_t x; |
| 2082 | char data[sizeof(uint64_t)]; |
| 2083 | } hash; |
| 2084 | hash.x = _Py_KeyedHash((uint64_t)key, source->buf, source->len); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2085 | #if !PY_LITTLE_ENDIAN |
| 2086 | // Force to little-endian. There really ought to be a succinct standard way |
| 2087 | // to do this. |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2088 | for (size_t i = 0; i < sizeof(hash.data)/2; i++) { |
| 2089 | char tmp = hash.data[i]; |
| 2090 | hash.data[i] = hash.data[sizeof(hash.data) - i - 1]; |
| 2091 | hash.data[sizeof(hash.data) - i - 1] = tmp; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2092 | } |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2093 | #endif |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2094 | return PyBytes_FromStringAndSize(hash.data, sizeof(hash.data)); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2095 | } |
| 2096 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 2097 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 2098 | PyDoc_STRVAR(doc_imp, |
Brett Cannon | 6f44d66 | 2012-04-15 16:08:47 -0400 | [diff] [blame] | 2099 | "(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] | 2100 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 2101 | static PyMethodDef imp_methods[] = { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2102 | _IMP_EXTENSION_SUFFIXES_METHODDEF |
| 2103 | _IMP_LOCK_HELD_METHODDEF |
| 2104 | _IMP_ACQUIRE_LOCK_METHODDEF |
| 2105 | _IMP_RELEASE_LOCK_METHODDEF |
| 2106 | _IMP_GET_FROZEN_OBJECT_METHODDEF |
| 2107 | _IMP_IS_FROZEN_PACKAGE_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2108 | _IMP_CREATE_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2109 | _IMP_INIT_FROZEN_METHODDEF |
| 2110 | _IMP_IS_BUILTIN_METHODDEF |
| 2111 | _IMP_IS_FROZEN_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2112 | _IMP_CREATE_DYNAMIC_METHODDEF |
| 2113 | _IMP_EXEC_DYNAMIC_METHODDEF |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2114 | _IMP_EXEC_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2115 | _IMP__FIX_CO_FILENAME_METHODDEF |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2116 | _IMP_SOURCE_HASH_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2117 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2118 | }; |
| 2119 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 2120 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2121 | static int |
| 2122 | imp_module_exec(PyObject *module) |
| 2123 | { |
| 2124 | const wchar_t *mode = _Py_GetConfig()->check_hash_pycs_mode; |
| 2125 | PyObject *pyc_mode = PyUnicode_FromWideChar(mode, -1); |
| 2126 | if (pyc_mode == NULL) { |
| 2127 | return -1; |
| 2128 | } |
| 2129 | if (PyModule_AddObjectRef(module, "check_hash_based_pycs", pyc_mode) < 0) { |
| 2130 | Py_DECREF(pyc_mode); |
| 2131 | return -1; |
| 2132 | } |
| 2133 | Py_DECREF(pyc_mode); |
| 2134 | |
| 2135 | return 0; |
| 2136 | } |
| 2137 | |
| 2138 | |
| 2139 | static PyModuleDef_Slot imp_slots[] = { |
| 2140 | {Py_mod_exec, imp_module_exec}, |
| 2141 | {0, NULL} |
| 2142 | }; |
| 2143 | |
| 2144 | static struct PyModuleDef imp_module = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2145 | PyModuleDef_HEAD_INIT, |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2146 | .m_name = "_imp", |
| 2147 | .m_doc = doc_imp, |
| 2148 | .m_size = 0, |
| 2149 | .m_methods = imp_methods, |
| 2150 | .m_slots = imp_slots, |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 2151 | }; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2152 | |
Jason Tishler | 6bc06ec | 2003-09-04 11:59:50 +0000 | [diff] [blame] | 2153 | PyMODINIT_FUNC |
Benjamin Peterson | c65ef77 | 2018-01-29 11:33:57 -0800 | [diff] [blame] | 2154 | PyInit__imp(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2155 | { |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2156 | return PyModuleDef_Init(&imp_module); |
| 2157 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2158 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2159 | |
| 2160 | // Import the _imp extension by calling manually _imp.create_builtin() and |
| 2161 | // _imp.exec_builtin() since importlib is not initialized yet. Initializing |
| 2162 | // importlib requires the _imp module: this function fix the bootstrap issue. |
| 2163 | PyObject* |
| 2164 | _PyImport_BootstrapImp(PyThreadState *tstate) |
| 2165 | { |
| 2166 | PyObject *name = PyUnicode_FromString("_imp"); |
| 2167 | if (name == NULL) { |
| 2168 | return NULL; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2169 | } |
| 2170 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2171 | // Mock a ModuleSpec object just good enough for PyModule_FromDefAndSpec(): |
| 2172 | // an object with just a name attribute. |
| 2173 | // |
| 2174 | // _imp.__spec__ is overriden by importlib._bootstrap._instal() anyway. |
| 2175 | PyObject *attrs = Py_BuildValue("{sO}", "name", name); |
| 2176 | if (attrs == NULL) { |
| 2177 | goto error; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2178 | } |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2179 | PyObject *spec = _PyNamespace_New(attrs); |
| 2180 | Py_DECREF(attrs); |
| 2181 | if (spec == NULL) { |
| 2182 | goto error; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2183 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2184 | |
Victor Stinner | 6223071 | 2020-11-18 23:18:29 +0100 | [diff] [blame] | 2185 | // Create the _imp module from its definition. |
| 2186 | PyObject *mod = create_builtin(tstate, name, spec); |
| 2187 | Py_CLEAR(name); |
| 2188 | Py_DECREF(spec); |
| 2189 | if (mod == NULL) { |
| 2190 | goto error; |
| 2191 | } |
| 2192 | assert(mod != Py_None); // not found |
| 2193 | |
| 2194 | // Execute the _imp module: call imp_module_exec(). |
| 2195 | if (exec_builtin_or_dynamic(mod) < 0) { |
| 2196 | Py_DECREF(mod); |
| 2197 | goto error; |
| 2198 | } |
| 2199 | return mod; |
| 2200 | |
| 2201 | error: |
| 2202 | Py_XDECREF(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2203 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2204 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2205 | |
| 2206 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2207 | /* API for embedding applications that want to add their own entries |
| 2208 | to the table of built-in modules. This should normally be called |
| 2209 | *before* Py_Initialize(). When the table resize fails, -1 is |
| 2210 | returned and the existing table is unchanged. |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2211 | |
| 2212 | After a similar function by Just van Rossum. */ |
| 2213 | |
| 2214 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2215 | PyImport_ExtendInittab(struct _inittab *newtab) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2216 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2217 | struct _inittab *p; |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2218 | size_t i, n; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2219 | int res = 0; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2220 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2221 | /* Count the number of entries in both tables */ |
| 2222 | for (n = 0; newtab[n].name != NULL; n++) |
| 2223 | ; |
| 2224 | if (n == 0) |
| 2225 | return 0; /* Nothing to do */ |
| 2226 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) |
| 2227 | ; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2228 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2229 | /* Force default raw memory allocator to get a known allocator to be able |
| 2230 | to release the memory in _PyImport_Fini2() */ |
| 2231 | PyMemAllocatorEx old_alloc; |
| 2232 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2233 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2234 | /* Allocate new memory for the combined table */ |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2235 | p = NULL; |
| 2236 | if (i + n <= SIZE_MAX / sizeof(struct _inittab) - 1) { |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2237 | size_t size = sizeof(struct _inittab) * (i + n + 1); |
| 2238 | p = PyMem_RawRealloc(inittab_copy, size); |
| 2239 | } |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2240 | if (p == NULL) { |
| 2241 | res = -1; |
| 2242 | goto done; |
| 2243 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2244 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2245 | /* Copy the tables into the new memory at the first call |
| 2246 | to PyImport_ExtendInittab(). */ |
| 2247 | if (inittab_copy != PyImport_Inittab) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2248 | memcpy(p, PyImport_Inittab, (i+1) * sizeof(struct _inittab)); |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2249 | } |
| 2250 | memcpy(p + i, newtab, (n + 1) * sizeof(struct _inittab)); |
| 2251 | PyImport_Inittab = inittab_copy = p; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2252 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2253 | done: |
| 2254 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2255 | return res; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2256 | } |
| 2257 | |
| 2258 | /* Shorthand to add a single entry given a name and a function */ |
| 2259 | |
| 2260 | int |
Brett Cannon | a826f32 | 2009-04-02 03:41:46 +0000 | [diff] [blame] | 2261 | PyImport_AppendInittab(const char *name, PyObject* (*initfunc)(void)) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2262 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2263 | struct _inittab newtab[2]; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2264 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2265 | memset(newtab, '\0', sizeof newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2266 | |
Serhiy Storchaka | 20b39b2 | 2014-09-28 11:27:24 +0300 | [diff] [blame] | 2267 | newtab[0].name = name; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2268 | newtab[0].initfunc = initfunc; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2269 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2270 | return PyImport_ExtendInittab(newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2271 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2272 | |
| 2273 | #ifdef __cplusplus |
| 2274 | } |
| 2275 | #endif |