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 | 61691d8 | 2019-10-02 23:51:20 +0200 | [diff] [blame] | 7 | #include "pycore_initconfig.h" |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 8 | #include "pycore_pyerrors.h" |
Victor Stinner | 621cebe | 2018-11-12 16:53:38 +0100 | [diff] [blame] | 9 | #include "pycore_pyhash.h" |
| 10 | #include "pycore_pylifecycle.h" |
Victor Stinner | d9ea5ca | 2020-04-15 02:57:50 +0200 | [diff] [blame] | 11 | #include "pycore_pymem.h" // _PyMem_SetDefaultAllocator() |
Victor Stinner | e5014be | 2020-04-14 17:52:15 +0200 | [diff] [blame] | 12 | #include "pycore_interp.h" // _PyInterpreterState_ClearModules() |
| 13 | #include "pycore_pystate.h" // _PyInterpreterState_GET() |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 14 | #include "pycore_sysmodule.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 15 | #include "errcode.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 16 | #include "marshal.h" |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 17 | #include "code.h" |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 18 | #include "importdl.h" |
Christian Heimes | 3d2b407 | 2017-09-30 00:53:19 +0200 | [diff] [blame] | 19 | #include "pydtrace.h" |
Guido van Rossum | c405b7b | 1991-06-04 19:39:42 +0000 | [diff] [blame] | 20 | |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 21 | #ifdef HAVE_FCNTL_H |
| 22 | #include <fcntl.h> |
| 23 | #endif |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 24 | #ifdef __cplusplus |
Brett Cannon | 9a5b25a | 2010-03-01 02:09:17 +0000 | [diff] [blame] | 25 | extern "C" { |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 26 | #endif |
Guido van Rossum | 55a8338 | 2000-09-20 20:31:38 +0000 | [diff] [blame] | 27 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 28 | #define CACHEDIR "__pycache__" |
Guido van Rossum | 96774c1 | 2000-05-01 20:19:08 +0000 | [diff] [blame] | 29 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 30 | /* Forward references */ |
| 31 | static PyObject *import_add_module(PyThreadState *tstate, PyObject *name); |
| 32 | |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 33 | /* See _PyImport_FixupExtensionObject() below */ |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 34 | static PyObject *extensions = NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 35 | |
Guido van Rossum | 771c6c8 | 1997-10-31 18:37:24 +0000 | [diff] [blame] | 36 | /* This table is defined in config.c: */ |
| 37 | extern struct _inittab _PyImport_Inittab[]; |
| 38 | |
| 39 | struct _inittab *PyImport_Inittab = _PyImport_Inittab; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 40 | static struct _inittab *inittab_copy = NULL; |
Guido van Rossum | 66f1fa8 | 1991-04-03 19:03:52 +0000 | [diff] [blame] | 41 | |
Hai Shi | 46874c2 | 2020-01-30 17:20:25 -0600 | [diff] [blame] | 42 | _Py_IDENTIFIER(__path__); |
| 43 | _Py_IDENTIFIER(__spec__); |
| 44 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 45 | /*[clinic input] |
| 46 | module _imp |
| 47 | [clinic start generated code]*/ |
Serhiy Storchaka | 1009bf1 | 2015-04-03 23:53:51 +0300 | [diff] [blame] | 48 | /*[clinic end generated code: output=da39a3ee5e6b4b0d input=9c332475d8686284]*/ |
Brett Cannon | fd4d050 | 2014-05-30 11:21:14 -0400 | [diff] [blame] | 49 | |
| 50 | #include "clinic/import.c.h" |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 51 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 52 | /* Initialize things */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 53 | |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 54 | PyStatus |
Victor Stinner | b45d259 | 2019-06-20 00:05:23 +0200 | [diff] [blame] | 55 | _PyImportHooks_Init(PyThreadState *tstate) |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 56 | { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 57 | PyObject *v, *path_hooks = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 58 | int err = 0; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 59 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 60 | /* adding sys.path_hooks and sys.path_importer_cache */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 61 | v = PyList_New(0); |
| 62 | if (v == NULL) |
| 63 | goto error; |
| 64 | err = PySys_SetObject("meta_path", v); |
| 65 | Py_DECREF(v); |
| 66 | if (err) |
| 67 | goto error; |
| 68 | v = PyDict_New(); |
| 69 | if (v == NULL) |
| 70 | goto error; |
| 71 | err = PySys_SetObject("path_importer_cache", v); |
| 72 | Py_DECREF(v); |
| 73 | if (err) |
| 74 | goto error; |
| 75 | path_hooks = PyList_New(0); |
| 76 | if (path_hooks == NULL) |
| 77 | goto error; |
| 78 | err = PySys_SetObject("path_hooks", path_hooks); |
| 79 | if (err) { |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 80 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 81 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 82 | Py_DECREF(path_hooks); |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 83 | return _PyStatus_OK(); |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 84 | |
| 85 | error: |
Victor Stinner | b45d259 | 2019-06-20 00:05:23 +0200 | [diff] [blame] | 86 | _PyErr_Print(tstate); |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 87 | return _PyStatus_ERR("initializing sys.meta_path, sys.path_hooks, " |
Victor Stinner | f7e5b56 | 2017-11-15 15:48:08 -0800 | [diff] [blame] | 88 | "or path_importer_cache failed"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 89 | } |
| 90 | |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 91 | PyStatus |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 92 | _PyImportZip_Init(PyThreadState *tstate) |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 93 | { |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 94 | PyObject *path_hooks, *zipimport; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 95 | int err = 0; |
| 96 | |
| 97 | path_hooks = PySys_GetObject("path_hooks"); |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 98 | if (path_hooks == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 99 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 100 | "unable to get sys.path_hooks"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 101 | goto error; |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 102 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 103 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 104 | int verbose = _PyInterpreterState_GetConfig(tstate->interp)->verbose; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 105 | if (verbose) { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 106 | PySys_WriteStderr("# installing zipimport hook\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 107 | } |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 108 | |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 109 | zipimport = PyImport_ImportModule("zipimport"); |
| 110 | if (zipimport == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 111 | _PyErr_Clear(tstate); /* No zip import module -- okay */ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 112 | if (verbose) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 113 | PySys_WriteStderr("# can't import zipimport\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 114 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 115 | } |
| 116 | else { |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 117 | _Py_IDENTIFIER(zipimporter); |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 118 | PyObject *zipimporter = _PyObject_GetAttrId(zipimport, |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 119 | &PyId_zipimporter); |
ukwksk | 5e6312c | 2018-05-15 04:10:52 +0900 | [diff] [blame] | 120 | Py_DECREF(zipimport); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 121 | if (zipimporter == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 122 | _PyErr_Clear(tstate); /* No zipimporter object -- okay */ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 123 | if (verbose) { |
| 124 | PySys_WriteStderr("# can't import zipimport.zipimporter\n"); |
| 125 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 126 | } |
| 127 | else { |
Brett Cannon | 8923a4d | 2012-04-24 22:03:46 -0400 | [diff] [blame] | 128 | /* sys.path_hooks.insert(0, zipimporter) */ |
| 129 | err = PyList_Insert(path_hooks, 0, zipimporter); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 130 | Py_DECREF(zipimporter); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 131 | if (err < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 132 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 133 | } |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 134 | if (verbose) { |
| 135 | PySys_WriteStderr("# installed zipimport hook\n"); |
| 136 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 137 | } |
| 138 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 139 | |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 140 | return _PyStatus_OK(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 141 | |
| 142 | error: |
| 143 | PyErr_Print(); |
Victor Stinner | 331a6a5 | 2019-05-27 16:39:22 +0200 | [diff] [blame] | 144 | return _PyStatus_ERR("initializing zipimport failed"); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 145 | } |
| 146 | |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 147 | /* Locking primitives to prevent parallel imports of the same module |
| 148 | in different threads to return with a partially loaded module. |
| 149 | These calls are serialized by the global interpreter lock. */ |
| 150 | |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 151 | static PyThread_type_lock import_lock = NULL; |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 152 | static unsigned long import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 153 | static int import_lock_level = 0; |
| 154 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 155 | void |
| 156 | _PyImport_AcquireLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 157 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 158 | unsigned long me = PyThread_get_thread_ident(); |
| 159 | if (me == PYTHREAD_INVALID_THREAD_ID) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 160 | return; /* Too bad */ |
| 161 | if (import_lock == NULL) { |
| 162 | import_lock = PyThread_allocate_lock(); |
| 163 | if (import_lock == NULL) |
| 164 | return; /* Nothing much we can do. */ |
| 165 | } |
| 166 | if (import_lock_thread == me) { |
| 167 | import_lock_level++; |
| 168 | return; |
| 169 | } |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 170 | if (import_lock_thread != PYTHREAD_INVALID_THREAD_ID || |
| 171 | !PyThread_acquire_lock(import_lock, 0)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 172 | { |
| 173 | PyThreadState *tstate = PyEval_SaveThread(); |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 174 | PyThread_acquire_lock(import_lock, WAIT_LOCK); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 175 | PyEval_RestoreThread(tstate); |
| 176 | } |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 177 | assert(import_lock_level == 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 178 | import_lock_thread = me; |
| 179 | import_lock_level = 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Benjamin Peterson | 0df35a9 | 2009-10-04 20:32:25 +0000 | [diff] [blame] | 182 | int |
| 183 | _PyImport_ReleaseLock(void) |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 184 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 185 | unsigned long me = PyThread_get_thread_ident(); |
| 186 | if (me == PYTHREAD_INVALID_THREAD_ID || import_lock == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 187 | return 0; /* Too bad */ |
| 188 | if (import_lock_thread != me) |
| 189 | return -1; |
| 190 | import_lock_level--; |
Antoine Pitrou | 202b606 | 2012-12-18 22:18:17 +0100 | [diff] [blame] | 191 | assert(import_lock_level >= 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 192 | if (import_lock_level == 0) { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 193 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 194 | PyThread_release_lock(import_lock); |
| 195 | } |
| 196 | return 1; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 197 | } |
| 198 | |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 199 | #ifdef HAVE_FORK |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 200 | /* 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] | 201 | created child processes do not share locks with the parent. |
| 202 | We now acquire the import lock around fork() calls but on some platforms |
| 203 | (Solaris 9 and earlier? see isue7242) that still left us with problems. */ |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 204 | PyStatus |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 205 | _PyImport_ReInitLock(void) |
| 206 | { |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 207 | if (import_lock != NULL) { |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 208 | if (_PyThread_at_fork_reinit(&import_lock) < 0) { |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 209 | return _PyStatus_ERR("failed to create a new lock"); |
Christian Heimes | 418fd74 | 2015-04-19 21:08:42 +0200 | [diff] [blame] | 210 | } |
| 211 | } |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 212 | |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 213 | if (import_lock_level > 1) { |
| 214 | /* Forked as a side effect of import */ |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 215 | unsigned long me = PyThread_get_thread_ident(); |
Victor Stinner | 45b34a0 | 2020-06-02 17:13:49 +0200 | [diff] [blame] | 216 | PyThread_acquire_lock(import_lock, WAIT_LOCK); |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 217 | import_lock_thread = me; |
| 218 | import_lock_level--; |
| 219 | } else { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 220 | import_lock_thread = PYTHREAD_INVALID_THREAD_ID; |
Nick Coghlan | b2ddf79 | 2010-12-02 04:11:46 +0000 | [diff] [blame] | 221 | import_lock_level = 0; |
| 222 | } |
Victor Stinner | 26881c8 | 2020-06-02 15:51:37 +0200 | [diff] [blame] | 223 | return _PyStatus_OK(); |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 224 | } |
Dong-hee Na | 62f75fe | 2020-04-15 01:16:24 +0900 | [diff] [blame] | 225 | #endif |
Guido van Rossum | 8ee3e5a | 2005-09-14 18:09:42 +0000 | [diff] [blame] | 226 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 227 | /*[clinic input] |
| 228 | _imp.lock_held |
| 229 | |
| 230 | Return True if the import lock is currently held, else False. |
| 231 | |
| 232 | On platforms without threads, return False. |
| 233 | [clinic start generated code]*/ |
| 234 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 235 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 236 | _imp_lock_held_impl(PyObject *module) |
| 237 | /*[clinic end generated code: output=8b89384b5e1963fc input=9b088f9b217d9bdf]*/ |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 238 | { |
Serhiy Storchaka | aefa7eb | 2017-03-23 15:48:39 +0200 | [diff] [blame] | 239 | return PyBool_FromLong(import_lock_thread != PYTHREAD_INVALID_THREAD_ID); |
Tim Peters | 6923234 | 2001-08-30 05:16:13 +0000 | [diff] [blame] | 240 | } |
| 241 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 242 | /*[clinic input] |
| 243 | _imp.acquire_lock |
| 244 | |
| 245 | Acquires the interpreter's import lock for the current thread. |
| 246 | |
| 247 | This lock should be used by import hooks to ensure thread-safety when importing |
| 248 | modules. On platforms without threads, this function does nothing. |
| 249 | [clinic start generated code]*/ |
| 250 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 251 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 252 | _imp_acquire_lock_impl(PyObject *module) |
| 253 | /*[clinic end generated code: output=1aff58cb0ee1b026 input=4a2d4381866d5fdc]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 254 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 255 | _PyImport_AcquireLock(); |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 256 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 257 | } |
| 258 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 259 | /*[clinic input] |
| 260 | _imp.release_lock |
| 261 | |
| 262 | Release the interpreter's import lock. |
| 263 | |
| 264 | On platforms without threads, this function does nothing. |
| 265 | [clinic start generated code]*/ |
| 266 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 267 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 268 | _imp_release_lock_impl(PyObject *module) |
| 269 | /*[clinic end generated code: output=7faab6d0be178b0a input=934fb11516dd778b]*/ |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 270 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 271 | if (_PyImport_ReleaseLock() < 0) { |
| 272 | PyErr_SetString(PyExc_RuntimeError, |
| 273 | "not holding the import lock"); |
| 274 | return NULL; |
| 275 | } |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 276 | Py_RETURN_NONE; |
Guido van Rossum | c4f4ca9 | 2003-02-12 21:46:11 +0000 | [diff] [blame] | 277 | } |
| 278 | |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 279 | void |
| 280 | _PyImport_Fini(void) |
| 281 | { |
Serhiy Storchaka | 505ff75 | 2014-02-09 13:33:53 +0200 | [diff] [blame] | 282 | Py_CLEAR(extensions); |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 283 | if (import_lock != NULL) { |
| 284 | PyThread_free_lock(import_lock); |
| 285 | import_lock = NULL; |
| 286 | } |
Antoine Pitrou | 8db076c | 2011-10-30 19:13:55 +0100 | [diff] [blame] | 287 | } |
| 288 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 289 | void |
| 290 | _PyImport_Fini2(void) |
| 291 | { |
| 292 | /* Use the same memory allocator than PyImport_ExtendInittab(). */ |
| 293 | PyMemAllocatorEx old_alloc; |
| 294 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 295 | |
| 296 | /* Free memory allocated by PyImport_ExtendInittab() */ |
| 297 | PyMem_RawFree(inittab_copy); |
Gregory Szorc | 64224a4 | 2020-05-01 11:07:54 -0700 | [diff] [blame] | 298 | inittab_copy = NULL; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 299 | |
| 300 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 301 | } |
| 302 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 303 | /* Helper for sys */ |
| 304 | |
| 305 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 306 | PyImport_GetModuleDict(void) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 307 | { |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 308 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 309 | if (interp->modules == NULL) { |
Victor Stinner | 87d3b9d | 2020-03-25 19:27:36 +0100 | [diff] [blame] | 310 | Py_FatalError("interpreter has no modules dictionary"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 311 | } |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 312 | return interp->modules; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 313 | } |
| 314 | |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 315 | /* In some corner cases it is important to be sure that the import |
| 316 | machinery has been initialized (or not cleaned up yet). For |
| 317 | example, see issue #4236 and PyModule_Create2(). */ |
| 318 | |
| 319 | int |
| 320 | _PyImport_IsInitialized(PyInterpreterState *interp) |
| 321 | { |
| 322 | if (interp->modules == NULL) |
| 323 | return 0; |
| 324 | return 1; |
| 325 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 326 | |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 327 | PyObject * |
| 328 | _PyImport_GetModuleId(struct _Py_Identifier *nameid) |
| 329 | { |
| 330 | PyObject *name = _PyUnicode_FromId(nameid); /* borrowed */ |
| 331 | if (name == NULL) { |
| 332 | return NULL; |
| 333 | } |
| 334 | return PyImport_GetModule(name); |
| 335 | } |
| 336 | |
| 337 | int |
| 338 | _PyImport_SetModule(PyObject *name, PyObject *m) |
| 339 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 340 | PyThreadState *tstate = _PyThreadState_GET(); |
| 341 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 342 | return PyObject_SetItem(modules, name, m); |
| 343 | } |
| 344 | |
| 345 | int |
| 346 | _PyImport_SetModuleString(const char *name, PyObject *m) |
| 347 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 348 | PyThreadState *tstate = _PyThreadState_GET(); |
| 349 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 350 | return PyMapping_SetItemString(modules, name, m); |
| 351 | } |
| 352 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 353 | static PyObject * |
| 354 | import_get_module(PyThreadState *tstate, PyObject *name) |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 355 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 356 | PyObject *modules = tstate->interp->modules; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 357 | if (modules == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 358 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 359 | "unable to get sys.modules"); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 360 | return NULL; |
| 361 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 362 | |
| 363 | PyObject *m; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 364 | Py_INCREF(modules); |
| 365 | if (PyDict_CheckExact(modules)) { |
| 366 | m = PyDict_GetItemWithError(modules, name); /* borrowed */ |
| 367 | Py_XINCREF(m); |
| 368 | } |
| 369 | else { |
| 370 | m = PyObject_GetItem(modules, name); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 371 | if (m == NULL && _PyErr_ExceptionMatches(tstate, PyExc_KeyError)) { |
| 372 | _PyErr_Clear(tstate); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 373 | } |
| 374 | } |
| 375 | Py_DECREF(modules); |
| 376 | return m; |
| 377 | } |
| 378 | |
| 379 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 380 | static int |
| 381 | import_ensure_initialized(PyThreadState *tstate, PyObject *mod, PyObject *name) |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 382 | { |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 383 | PyInterpreterState *interp = tstate->interp; |
| 384 | PyObject *spec; |
| 385 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 386 | _Py_IDENTIFIER(_lock_unlock_module); |
| 387 | |
| 388 | /* Optimization: only call _bootstrap._lock_unlock_module() if |
| 389 | __spec__._initializing is true. |
| 390 | NOTE: because of this, initializing must be set *before* |
| 391 | stuffing the new module in sys.modules. |
| 392 | */ |
| 393 | spec = _PyObject_GetAttrId(mod, &PyId___spec__); |
| 394 | int busy = _PyModuleSpec_IsInitializing(spec); |
| 395 | Py_XDECREF(spec); |
| 396 | if (busy) { |
| 397 | /* Wait until module is done importing. */ |
| 398 | PyObject *value = _PyObject_CallMethodIdOneArg( |
| 399 | interp->importlib, &PyId__lock_unlock_module, name); |
| 400 | if (value == NULL) { |
| 401 | return -1; |
| 402 | } |
| 403 | Py_DECREF(value); |
| 404 | } |
| 405 | return 0; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 406 | } |
| 407 | |
| 408 | |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 409 | /* List of names to clear in sys */ |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 410 | static const char * const sys_deletes[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 411 | "path", "argv", "ps1", "ps2", |
| 412 | "last_type", "last_value", "last_traceback", |
| 413 | "path_hooks", "path_importer_cache", "meta_path", |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 414 | "__interactivehook__", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 415 | NULL |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 416 | }; |
| 417 | |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 418 | static const char * const sys_files[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 419 | "stdin", "__stdin__", |
| 420 | "stdout", "__stdout__", |
| 421 | "stderr", "__stderr__", |
| 422 | NULL |
Guido van Rossum | 05f9dce | 1998-02-19 20:58:44 +0000 | [diff] [blame] | 423 | }; |
| 424 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 425 | /* Un-initialize things, as good as we can */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 426 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 427 | void |
Victor Stinner | 987a0dc | 2019-06-19 10:36:10 +0200 | [diff] [blame] | 428 | _PyImport_Cleanup(PyThreadState *tstate) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 429 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 430 | PyInterpreterState *interp = tstate->interp; |
| 431 | PyObject *modules = interp->modules; |
| 432 | if (modules == NULL) { |
| 433 | /* Already done */ |
| 434 | return; |
| 435 | } |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 436 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 437 | /* Delete some special variables first. These are common |
| 438 | places where user values hide and people complain when their |
| 439 | destructors fail. Since the modules containing them are |
| 440 | deleted *last* of all, they would come too late in the normal |
| 441 | destruction order. Sigh. */ |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 442 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 443 | /* XXX Perhaps these precautions are obsolete. Who knows? */ |
| 444 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 445 | int verbose = _PyInterpreterState_GetConfig(interp)->verbose; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 446 | if (verbose) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 447 | PySys_WriteStderr("# clear builtins._\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 448 | } |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 449 | if (PyDict_SetItemString(interp->builtins, "_", Py_None) < 0) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 450 | PyErr_WriteUnraisable(NULL); |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 451 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 452 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 453 | const char * const *p; |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 454 | for (p = sys_deletes; *p != NULL; p++) { |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 455 | if (verbose) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 456 | PySys_WriteStderr("# clear sys.%s\n", *p); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 457 | } |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 458 | if (PyDict_SetItemString(interp->sysdict, *p, Py_None) < 0) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 459 | PyErr_WriteUnraisable(NULL); |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 460 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 461 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 462 | for (p = sys_files; *p != NULL; p+=2) { |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 463 | if (verbose) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 464 | PySys_WriteStderr("# restore sys.%s\n", *p); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 465 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 466 | PyObject *value = _PyDict_GetItemStringWithError(interp->sysdict, |
| 467 | *(p+1)); |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 468 | if (value == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 469 | if (_PyErr_Occurred(tstate)) { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 470 | PyErr_WriteUnraisable(NULL); |
| 471 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 472 | value = Py_None; |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 473 | } |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 474 | if (PyDict_SetItemString(interp->sysdict, *p, value) < 0) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 475 | PyErr_WriteUnraisable(NULL); |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 476 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 477 | } |
Guido van Rossum | 05f9dce | 1998-02-19 20:58:44 +0000 | [diff] [blame] | 478 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 479 | /* We prepare a list which will receive (name, weakref) tuples of |
| 480 | modules when they are removed from sys.modules. The name is used |
| 481 | for diagnosis messages (in verbose mode), while the weakref helps |
| 482 | detect those modules which have been held alive. */ |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 483 | PyObject *weaklist = PyList_New(0); |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 484 | if (weaklist == NULL) { |
| 485 | PyErr_WriteUnraisable(NULL); |
| 486 | } |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 487 | |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 488 | #define STORE_MODULE_WEAKREF(name, mod) \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 489 | if (weaklist != NULL) { \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 490 | PyObject *wr = PyWeakref_NewRef(mod, NULL); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 491 | if (wr) { \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 492 | PyObject *tup = PyTuple_Pack(2, name, wr); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 493 | if (!tup || PyList_Append(weaklist, tup) < 0) { \ |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 494 | PyErr_WriteUnraisable(NULL); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 495 | } \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 496 | Py_XDECREF(tup); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 497 | Py_DECREF(wr); \ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 498 | } \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 499 | else { \ |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 500 | PyErr_WriteUnraisable(NULL); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 501 | } \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 502 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 503 | #define CLEAR_MODULE(name, mod) \ |
| 504 | if (PyModule_Check(mod)) { \ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 505 | if (verbose && PyUnicode_Check(name)) { \ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 506 | PySys_FormatStderr("# cleanup[2] removing %U\n", name); \ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 507 | } \ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 508 | STORE_MODULE_WEAKREF(name, mod); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 509 | if (PyObject_SetItem(modules, name, Py_None) < 0) { \ |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 510 | PyErr_WriteUnraisable(NULL); \ |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 511 | } \ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 512 | } |
Guido van Rossum | a0fec2b | 1998-02-06 17:16:02 +0000 | [diff] [blame] | 513 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 514 | /* Remove all modules from sys.modules, hoping that garbage collection |
| 515 | can reclaim most of them. */ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 516 | if (PyDict_CheckExact(modules)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 517 | Py_ssize_t pos = 0; |
| 518 | PyObject *key, *value; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 519 | while (PyDict_Next(modules, &pos, &key, &value)) { |
| 520 | CLEAR_MODULE(key, value); |
| 521 | } |
| 522 | } |
| 523 | else { |
| 524 | PyObject *iterator = PyObject_GetIter(modules); |
| 525 | if (iterator == NULL) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 526 | PyErr_WriteUnraisable(NULL); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 527 | } |
| 528 | else { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 529 | PyObject *key; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 530 | while ((key = PyIter_Next(iterator))) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 531 | PyObject *value = PyObject_GetItem(modules, key); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 532 | if (value == NULL) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 533 | PyErr_WriteUnraisable(NULL); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 534 | continue; |
| 535 | } |
| 536 | CLEAR_MODULE(key, value); |
| 537 | Py_DECREF(value); |
| 538 | Py_DECREF(key); |
| 539 | } |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 540 | if (PyErr_Occurred()) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 541 | PyErr_WriteUnraisable(NULL); |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 542 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 543 | Py_DECREF(iterator); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 544 | } |
| 545 | } |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 546 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 547 | /* Clear the modules dict. */ |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 548 | if (PyDict_CheckExact(modules)) { |
| 549 | PyDict_Clear(modules); |
| 550 | } |
| 551 | else { |
| 552 | _Py_IDENTIFIER(clear); |
Jeroen Demeyer | 762f93f | 2019-07-08 10:19:25 +0200 | [diff] [blame] | 553 | if (_PyObject_CallMethodIdNoArgs(modules, &PyId_clear) == NULL) { |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 554 | PyErr_WriteUnraisable(NULL); |
| 555 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 556 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 557 | /* Restore the original builtins dict, to ensure that any |
| 558 | user data gets cleared. */ |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 559 | PyObject *dict = PyDict_Copy(interp->builtins); |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 560 | if (dict == NULL) { |
| 561 | PyErr_WriteUnraisable(NULL); |
| 562 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 563 | PyDict_Clear(interp->builtins); |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 564 | if (PyDict_Update(interp->builtins, interp->builtins_copy)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 565 | _PyErr_Clear(tstate); |
Serhiy Storchaka | c1a6832 | 2018-04-29 22:16:30 +0300 | [diff] [blame] | 566 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 567 | Py_XDECREF(dict); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 568 | /* Collect references */ |
| 569 | _PyGC_CollectNoFail(); |
Antoine Pitrou | 5f454a0 | 2013-05-06 21:15:57 +0200 | [diff] [blame] | 570 | /* Dump GC stats before it's too late, since it uses the warnings |
| 571 | machinery. */ |
Victor Stinner | 67e0de6 | 2019-11-20 11:48:18 +0100 | [diff] [blame] | 572 | _PyGC_DumpShutdownStats(tstate); |
Antoine Pitrou | 5f454a0 | 2013-05-06 21:15:57 +0200 | [diff] [blame] | 573 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 574 | /* Now, if there are any modules left alive, clear their globals to |
| 575 | minimize potential leaks. All C extension modules actually end |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 576 | up here, since they are kept alive in the interpreter state. |
| 577 | |
| 578 | The special treatment of "builtins" here is because even |
| 579 | when it's not referenced as a module, its dictionary is |
| 580 | referenced by almost every module's __builtins__. Since |
| 581 | deleting a module clears its dictionary (even if there are |
| 582 | references left to it), we need to delete the "builtins" |
| 583 | module last. Likewise, we don't delete sys until the very |
| 584 | end because it is implicitly referenced (e.g. by print). */ |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 585 | if (weaklist != NULL) { |
Serhiy Storchaka | c93c58b | 2018-10-29 19:30:16 +0200 | [diff] [blame] | 586 | Py_ssize_t i; |
| 587 | /* Since dict is ordered in CPython 3.6+, modules are saved in |
| 588 | importing order. First clear modules imported later. */ |
| 589 | for (i = PyList_GET_SIZE(weaklist) - 1; i >= 0; i--) { |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 590 | PyObject *tup = PyList_GET_ITEM(weaklist, i); |
Antoine Pitrou | 79ba388 | 2013-08-06 22:50:15 +0200 | [diff] [blame] | 591 | PyObject *name = PyTuple_GET_ITEM(tup, 0); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 592 | PyObject *mod = PyWeakref_GET_OBJECT(PyTuple_GET_ITEM(tup, 1)); |
| 593 | if (mod == Py_None) |
| 594 | continue; |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 595 | assert(PyModule_Check(mod)); |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 596 | dict = PyModule_GetDict(mod); |
| 597 | if (dict == interp->builtins || dict == interp->sysdict) |
| 598 | continue; |
| 599 | Py_INCREF(mod); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 600 | if (verbose && PyUnicode_Check(name)) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 601 | PySys_FormatStderr("# cleanup[3] wiping %U\n", name); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 602 | } |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 603 | _PyModule_Clear(mod); |
| 604 | Py_DECREF(mod); |
Antoine Pitrou | 070cb3c | 2013-05-08 13:23:25 +0200 | [diff] [blame] | 605 | } |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 606 | Py_DECREF(weaklist); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 607 | } |
Guido van Rossum | 758eec0 | 1998-01-19 21:58:26 +0000 | [diff] [blame] | 608 | |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 609 | /* Next, delete sys and builtins (in that order) */ |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 610 | if (verbose) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 611 | PySys_FormatStderr("# cleanup[3] wiping sys\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 612 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 613 | _PyModule_ClearDict(interp->sysdict); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 614 | if (verbose) { |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 615 | PySys_FormatStderr("# cleanup[3] wiping builtins\n"); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 616 | } |
Serhiy Storchaka | 013bb91 | 2014-02-10 18:21:34 +0200 | [diff] [blame] | 617 | _PyModule_ClearDict(interp->builtins); |
| 618 | |
Eddie Elizondo | 4590f72 | 2020-02-04 02:29:25 -0800 | [diff] [blame] | 619 | /* Clear module dict copies stored in the interpreter state */ |
| 620 | _PyInterpreterState_ClearModules(interp); |
| 621 | |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 622 | /* Clear and delete the modules directory. Actual modules will |
| 623 | still be there only if imported during the execution of some |
| 624 | destructor. */ |
Eric Snow | 93c92f7 | 2017-09-13 23:46:04 -0700 | [diff] [blame] | 625 | interp->modules = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 626 | Py_DECREF(modules); |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 627 | |
| 628 | /* Once more */ |
| 629 | _PyGC_CollectNoFail(); |
| 630 | |
Serhiy Storchaka | e9d9494 | 2018-04-25 20:58:40 +0300 | [diff] [blame] | 631 | #undef CLEAR_MODULE |
Antoine Pitrou | dcedaf6 | 2013-07-31 23:14:08 +0200 | [diff] [blame] | 632 | #undef STORE_MODULE_WEAKREF |
Guido van Rossum | 8d15b5d | 1990-10-26 14:58:58 +0000 | [diff] [blame] | 633 | } |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 634 | |
| 635 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 636 | /* Helper for pythonrun.c -- return magic number and tag. */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 637 | |
| 638 | long |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 639 | PyImport_GetMagicNumber(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 640 | { |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 641 | long res; |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 642 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 643 | PyObject *external, *pyc_magic; |
| 644 | |
| 645 | external = PyObject_GetAttrString(interp->importlib, "_bootstrap_external"); |
| 646 | if (external == NULL) |
| 647 | return -1; |
| 648 | pyc_magic = PyObject_GetAttrString(external, "_RAW_MAGIC_NUMBER"); |
| 649 | Py_DECREF(external); |
Brett Cannon | 77b2abd | 2012-07-09 16:09:00 -0400 | [diff] [blame] | 650 | if (pyc_magic == NULL) |
| 651 | return -1; |
Antoine Pitrou | 44b4b6a | 2012-07-10 18:27:54 +0200 | [diff] [blame] | 652 | res = PyLong_AsLong(pyc_magic); |
Benjamin Peterson | 66f3659 | 2012-07-09 22:21:55 -0700 | [diff] [blame] | 653 | Py_DECREF(pyc_magic); |
| 654 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 655 | } |
| 656 | |
| 657 | |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 658 | extern const char * _PySys_ImplCacheTag; |
| 659 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 660 | const char * |
| 661 | PyImport_GetMagicTag(void) |
| 662 | { |
Brett Cannon | 3adc7b7 | 2012-07-09 14:22:12 -0400 | [diff] [blame] | 663 | return _PySys_ImplCacheTag; |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 664 | } |
| 665 | |
Brett Cannon | 98979b8 | 2012-07-02 15:13:11 -0400 | [diff] [blame] | 666 | |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 667 | /* Magic for extension modules (built-in as well as dynamically |
| 668 | loaded). To prevent initializing an extension module more than |
Andrew Svetlov | 6b2cbeb | 2012-12-14 17:04:59 +0200 | [diff] [blame] | 669 | once, we keep a static dictionary 'extensions' keyed by the tuple |
| 670 | (module name, module name) (for built-in modules) or by |
| 671 | (filename, module name) (for dynamically loaded modules), containing these |
| 672 | modules. A copy of the module's dictionary is stored by calling |
| 673 | _PyImport_FixupExtensionObject() immediately after the module initialization |
| 674 | function succeeds. A copy can be retrieved from there by calling |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 675 | _PyImport_FindExtensionObject(). |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 676 | |
Barry Warsaw | 7c9627b | 2010-06-17 18:38:20 +0000 | [diff] [blame] | 677 | Modules which do support multiple initialization set their m_size |
| 678 | field to a non-negative number (indicating the size of the |
| 679 | module-specific state). They are still recorded in the extensions |
| 680 | dictionary, to avoid loading shared libraries twice. |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 681 | */ |
| 682 | |
| 683 | int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 684 | _PyImport_FixupExtensionObject(PyObject *mod, PyObject *name, |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 685 | PyObject *filename, PyObject *modules) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 686 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 687 | if (mod == NULL || !PyModule_Check(mod)) { |
| 688 | PyErr_BadInternalCall(); |
| 689 | return -1; |
| 690 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 691 | |
| 692 | struct PyModuleDef *def = PyModule_GetDef(mod); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 693 | if (!def) { |
| 694 | PyErr_BadInternalCall(); |
| 695 | return -1; |
| 696 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 697 | |
| 698 | PyThreadState *tstate = _PyThreadState_GET(); |
| 699 | if (PyObject_SetItem(modules, name, mod) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 700 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 701 | } |
| 702 | if (_PyState_AddModule(tstate, mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 703 | PyMapping_DelItem(modules, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 704 | return -1; |
| 705 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 706 | |
| 707 | if (_Py_IsMainInterpreter(tstate)) { |
| 708 | if (def->m_size == -1) { |
| 709 | if (def->m_base.m_copy) { |
| 710 | /* Somebody already imported the module, |
| 711 | likely under a different name. |
| 712 | XXX this should really not happen. */ |
| 713 | Py_CLEAR(def->m_base.m_copy); |
| 714 | } |
| 715 | PyObject *dict = PyModule_GetDict(mod); |
| 716 | if (dict == NULL) { |
| 717 | return -1; |
| 718 | } |
| 719 | def->m_base.m_copy = PyDict_Copy(dict); |
| 720 | if (def->m_base.m_copy == NULL) { |
| 721 | return -1; |
| 722 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 723 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 724 | |
| 725 | if (extensions == NULL) { |
| 726 | extensions = PyDict_New(); |
| 727 | if (extensions == NULL) { |
| 728 | return -1; |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | PyObject *key = PyTuple_Pack(2, filename, name); |
| 733 | if (key == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 734 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 735 | } |
| 736 | int res = PyDict_SetItem(extensions, key, (PyObject *)def); |
| 737 | Py_DECREF(key); |
| 738 | if (res < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 739 | return -1; |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 740 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 741 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 742 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 743 | return 0; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 744 | } |
| 745 | |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 746 | int |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 747 | _PyImport_FixupBuiltin(PyObject *mod, const char *name, PyObject *modules) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 748 | { |
| 749 | int res; |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 750 | PyObject *nameobj; |
Victor Stinner | 21fcd0c | 2011-03-07 18:28:15 +0100 | [diff] [blame] | 751 | nameobj = PyUnicode_InternFromString(name); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 752 | if (nameobj == NULL) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 753 | return -1; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 754 | res = _PyImport_FixupExtensionObject(mod, nameobj, nameobj, modules); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 755 | Py_DECREF(nameobj); |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 756 | return res; |
| 757 | } |
| 758 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 759 | static PyObject * |
| 760 | import_find_extension(PyThreadState *tstate, PyObject *name, |
| 761 | PyObject *filename) |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 762 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 763 | if (extensions == NULL) { |
| 764 | return NULL; |
| 765 | } |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 766 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 767 | PyObject *key = PyTuple_Pack(2, filename, name); |
| 768 | if (key == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 769 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 770 | } |
| 771 | PyModuleDef* def = (PyModuleDef *)PyDict_GetItemWithError(extensions, key); |
Benjamin Peterson | 5cb8a31 | 2012-12-15 00:05:16 -0500 | [diff] [blame] | 772 | Py_DECREF(key); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 773 | if (def == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 774 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | PyObject *mod, *mdict; |
| 778 | PyObject *modules = tstate->interp->modules; |
| 779 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 780 | if (def->m_size == -1) { |
| 781 | /* Module does not support repeated initialization */ |
| 782 | if (def->m_base.m_copy == NULL) |
| 783 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 784 | mod = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 785 | if (mod == NULL) |
| 786 | return NULL; |
| 787 | mdict = PyModule_GetDict(mod); |
| 788 | if (mdict == NULL) |
| 789 | return NULL; |
| 790 | if (PyDict_Update(mdict, def->m_base.m_copy)) |
| 791 | return NULL; |
| 792 | } |
| 793 | else { |
| 794 | if (def->m_base.m_init == NULL) |
| 795 | return NULL; |
| 796 | mod = def->m_base.m_init(); |
| 797 | if (mod == NULL) |
| 798 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 799 | if (PyObject_SetItem(modules, name, mod) == -1) { |
Christian Heimes | 09ca794 | 2013-07-20 14:51:53 +0200 | [diff] [blame] | 800 | Py_DECREF(mod); |
| 801 | return NULL; |
| 802 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 803 | Py_DECREF(mod); |
| 804 | } |
Victor Stinner | 82c83bd | 2019-11-22 18:52:27 +0100 | [diff] [blame] | 805 | if (_PyState_AddModule(tstate, mod, def) < 0) { |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 806 | PyMapping_DelItem(modules, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 807 | return NULL; |
| 808 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 809 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 810 | int verbose = _PyInterpreterState_GetConfig(tstate->interp)->verbose; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 811 | if (verbose) { |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 812 | PySys_FormatStderr("import %U # previously loaded (%R)\n", |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 813 | name, filename); |
| 814 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 815 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 816 | } |
| 817 | |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 818 | PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 819 | _PyImport_FindExtensionObject(PyObject *name, PyObject *filename) |
| 820 | { |
| 821 | PyThreadState *tstate = _PyThreadState_GET(); |
| 822 | return import_find_extension(tstate, name, filename); |
| 823 | } |
| 824 | |
| 825 | |
| 826 | PyObject * |
| 827 | _PyImport_FindBuiltin(PyThreadState *tstate, const char *name) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 828 | { |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 829 | PyObject *res, *nameobj; |
Victor Stinner | 21fcd0c | 2011-03-07 18:28:15 +0100 | [diff] [blame] | 830 | nameobj = PyUnicode_InternFromString(name); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 831 | if (nameobj == NULL) |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 832 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 833 | res = import_find_extension(tstate, nameobj, nameobj); |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 834 | Py_DECREF(nameobj); |
Victor Stinner | 49d3f25 | 2010-10-17 01:24:53 +0000 | [diff] [blame] | 835 | return res; |
| 836 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 837 | |
| 838 | /* Get the module object corresponding to a module name. |
| 839 | First check the modules dictionary if there's one there, |
Walter Dörwald | f0dfc7a | 2003-10-20 14:01:56 +0000 | [diff] [blame] | 840 | if not, create a new one and insert it in the modules dictionary. |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 841 | Because the former action is most common, THIS DOES NOT RETURN A |
| 842 | 'NEW' REFERENCE! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 843 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 844 | static PyObject * |
| 845 | import_add_module(PyThreadState *tstate, PyObject *name) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 846 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 847 | PyObject *modules = tstate->interp->modules; |
| 848 | if (modules == NULL) { |
| 849 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 850 | "no import module dictionary"); |
| 851 | return NULL; |
| 852 | } |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 853 | |
Eric Snow | 86b7afd | 2017-09-04 17:54:09 -0600 | [diff] [blame] | 854 | PyObject *m; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 855 | if (PyDict_CheckExact(modules)) { |
| 856 | m = PyDict_GetItemWithError(modules, name); |
| 857 | } |
| 858 | else { |
| 859 | m = PyObject_GetItem(modules, name); |
Min ho Kim | c4cacc8 | 2019-07-31 08:16:13 +1000 | [diff] [blame] | 860 | // For backward-compatibility we copy the behavior |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 861 | // of PyDict_GetItemWithError(). |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 862 | if (_PyErr_ExceptionMatches(tstate, PyExc_KeyError)) { |
| 863 | _PyErr_Clear(tstate); |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 864 | } |
Serhiy Storchaka | 48a583b | 2016-02-10 10:31:20 +0200 | [diff] [blame] | 865 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 866 | if (_PyErr_Occurred(tstate)) { |
Serhiy Storchaka | 48a583b | 2016-02-10 10:31:20 +0200 | [diff] [blame] | 867 | return NULL; |
| 868 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 869 | if (m != NULL && PyModule_Check(m)) { |
| 870 | return m; |
| 871 | } |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 872 | m = PyModule_NewObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 873 | if (m == NULL) |
| 874 | return NULL; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 875 | if (PyObject_SetItem(modules, name, m) != 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 876 | Py_DECREF(m); |
| 877 | return NULL; |
| 878 | } |
| 879 | Py_DECREF(m); /* Yes, it still exists, in modules! */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 880 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 881 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 882 | } |
| 883 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 884 | PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 885 | PyImport_AddModuleObject(PyObject *name) |
| 886 | { |
| 887 | PyThreadState *tstate = _PyThreadState_GET(); |
| 888 | return import_add_module(tstate, name); |
| 889 | } |
| 890 | |
| 891 | |
| 892 | PyObject * |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 893 | PyImport_AddModule(const char *name) |
| 894 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 895 | PyObject *nameobj = PyUnicode_FromString(name); |
| 896 | if (nameobj == NULL) { |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 897 | return NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 898 | } |
| 899 | PyObject *module = PyImport_AddModuleObject(nameobj); |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 900 | Py_DECREF(nameobj); |
| 901 | return module; |
| 902 | } |
| 903 | |
| 904 | |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 905 | /* Remove name from sys.modules, if it's there. */ |
| 906 | static void |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 907 | remove_module(PyThreadState *tstate, PyObject *name) |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 908 | { |
Zackery Spytz | 94a64e9 | 2019-05-08 10:31:23 -0600 | [diff] [blame] | 909 | PyObject *type, *value, *traceback; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 910 | _PyErr_Fetch(tstate, &type, &value, &traceback); |
| 911 | |
| 912 | PyObject *modules = tstate->interp->modules; |
Zackery Spytz | 94a64e9 | 2019-05-08 10:31:23 -0600 | [diff] [blame] | 913 | if (!PyMapping_HasKey(modules, name)) { |
| 914 | goto out; |
| 915 | } |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 916 | if (PyMapping_DelItem(modules, name) < 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 917 | _PyErr_SetString(tstate, PyExc_RuntimeError, |
| 918 | "deleting key in sys.modules failed"); |
| 919 | _PyErr_ChainExceptions(type, value, traceback); |
| 920 | return; |
Eric Snow | 3f9eee6 | 2017-09-15 16:35:20 -0600 | [diff] [blame] | 921 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 922 | |
Zackery Spytz | 94a64e9 | 2019-05-08 10:31:23 -0600 | [diff] [blame] | 923 | out: |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 924 | _PyErr_Restore(tstate, type, value, traceback); |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 925 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 926 | |
Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 927 | |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 928 | /* Execute a code object in a module and return the module object |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 929 | * WITH INCREMENTED REFERENCE COUNT. If an error occurs, name is |
| 930 | * removed from sys.modules, to avoid leaving damaged module objects |
| 931 | * in sys.modules. The caller may wish to restore the original |
| 932 | * module object (if any) in this case; PyImport_ReloadModule is an |
| 933 | * example. |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 934 | * |
| 935 | * Note that PyImport_ExecCodeModuleWithPathnames() is the preferred, richer |
| 936 | * interface. The other two exist primarily for backward compatibility. |
Tim Peters | 1cd7017 | 2004-08-02 03:52:12 +0000 | [diff] [blame] | 937 | */ |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 938 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 939 | PyImport_ExecCodeModule(const char *name, PyObject *co) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 940 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 941 | return PyImport_ExecCodeModuleWithPathnames( |
| 942 | name, co, (char *)NULL, (char *)NULL); |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 943 | } |
| 944 | |
| 945 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 946 | PyImport_ExecCodeModuleEx(const char *name, PyObject *co, const char *pathname) |
Guido van Rossum | e32bf6e | 1998-02-11 05:53:02 +0000 | [diff] [blame] | 947 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 948 | return PyImport_ExecCodeModuleWithPathnames( |
| 949 | name, co, pathname, (char *)NULL); |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 950 | } |
| 951 | |
| 952 | PyObject * |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 953 | PyImport_ExecCodeModuleWithPathnames(const char *name, PyObject *co, |
| 954 | const char *pathname, |
| 955 | const char *cpathname) |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 956 | { |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 957 | PyObject *m = NULL; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 958 | PyObject *nameobj, *pathobj = NULL, *cpathobj = NULL, *external= NULL; |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 959 | |
| 960 | nameobj = PyUnicode_FromString(name); |
| 961 | if (nameobj == NULL) |
| 962 | return NULL; |
| 963 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 964 | if (cpathname != NULL) { |
| 965 | cpathobj = PyUnicode_DecodeFSDefault(cpathname); |
| 966 | if (cpathobj == NULL) |
| 967 | goto error; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 968 | } |
| 969 | else |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 970 | cpathobj = NULL; |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 971 | |
| 972 | if (pathname != NULL) { |
| 973 | pathobj = PyUnicode_DecodeFSDefault(pathname); |
| 974 | if (pathobj == NULL) |
| 975 | goto error; |
| 976 | } |
| 977 | else if (cpathobj != NULL) { |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 978 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 979 | _Py_IDENTIFIER(_get_sourcefile); |
| 980 | |
| 981 | if (interp == NULL) { |
Victor Stinner | 87d3b9d | 2020-03-25 19:27:36 +0100 | [diff] [blame] | 982 | Py_FatalError("no current interpreter"); |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 983 | } |
| 984 | |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 985 | external= PyObject_GetAttrString(interp->importlib, |
| 986 | "_bootstrap_external"); |
| 987 | if (external != NULL) { |
Jeroen Demeyer | 59ad110 | 2019-07-11 10:59:05 +0200 | [diff] [blame] | 988 | pathobj = _PyObject_CallMethodIdOneArg( |
| 989 | external, &PyId__get_sourcefile, cpathobj); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 990 | Py_DECREF(external); |
| 991 | } |
Brett Cannon | a6473f9 | 2012-07-13 13:57:03 -0400 | [diff] [blame] | 992 | if (pathobj == NULL) |
| 993 | PyErr_Clear(); |
| 994 | } |
| 995 | else |
| 996 | pathobj = NULL; |
| 997 | |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 998 | m = PyImport_ExecCodeModuleObject(nameobj, co, pathobj, cpathobj); |
| 999 | error: |
| 1000 | Py_DECREF(nameobj); |
| 1001 | Py_XDECREF(pathobj); |
| 1002 | Py_XDECREF(cpathobj); |
| 1003 | return m; |
| 1004 | } |
| 1005 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1006 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1007 | module_dict_for_exec(PyThreadState *tstate, PyObject *name) |
Victor Stinner | 27ee089 | 2011-03-04 12:57:09 +0000 | [diff] [blame] | 1008 | { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1009 | _Py_IDENTIFIER(__builtins__); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1010 | PyObject *m, *d = NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1011 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1012 | m = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1013 | if (m == NULL) |
| 1014 | return NULL; |
| 1015 | /* If the module is being reloaded, we get the old module back |
| 1016 | and re-use its dict to exec the new code. */ |
| 1017 | d = PyModule_GetDict(m); |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1018 | if (_PyDict_GetItemIdWithError(d, &PyId___builtins__) == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1019 | if (_PyErr_Occurred(tstate) || |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1020 | _PyDict_SetItemId(d, &PyId___builtins__, |
| 1021 | PyEval_GetBuiltins()) != 0) |
| 1022 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1023 | remove_module(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1024 | return NULL; |
| 1025 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1026 | } |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1027 | |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1028 | return d; /* Return a borrowed reference. */ |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1029 | } |
| 1030 | |
| 1031 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1032 | exec_code_in_module(PyThreadState *tstate, PyObject *name, |
| 1033 | PyObject *module_dict, PyObject *code_object) |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1034 | { |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1035 | PyObject *v, *m; |
| 1036 | |
| 1037 | v = PyEval_EvalCode(code_object, module_dict, module_dict); |
| 1038 | if (v == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1039 | remove_module(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1040 | return NULL; |
| 1041 | } |
| 1042 | Py_DECREF(v); |
| 1043 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1044 | m = import_get_module(tstate, name); |
| 1045 | if (m == NULL && !_PyErr_Occurred(tstate)) { |
| 1046 | _PyErr_Format(tstate, PyExc_ImportError, |
| 1047 | "Loaded module %R not found in sys.modules", |
| 1048 | name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1049 | } |
| 1050 | |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1051 | return m; |
| 1052 | } |
| 1053 | |
| 1054 | PyObject* |
| 1055 | PyImport_ExecCodeModuleObject(PyObject *name, PyObject *co, PyObject *pathname, |
| 1056 | PyObject *cpathname) |
| 1057 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1058 | PyThreadState *tstate = _PyThreadState_GET(); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1059 | PyObject *d, *external, *res; |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1060 | _Py_IDENTIFIER(_fix_up_module); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1061 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1062 | d = module_dict_for_exec(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1063 | if (d == NULL) { |
| 1064 | return NULL; |
| 1065 | } |
| 1066 | |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1067 | if (pathname == NULL) { |
| 1068 | pathname = ((PyCodeObject *)co)->co_filename; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1069 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1070 | external = PyObject_GetAttrString(tstate->interp->importlib, |
| 1071 | "_bootstrap_external"); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1072 | if (external == NULL) |
| 1073 | return NULL; |
| 1074 | res = _PyObject_CallMethodIdObjArgs(external, |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1075 | &PyId__fix_up_module, |
| 1076 | d, name, pathname, cpathname, NULL); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1077 | Py_DECREF(external); |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1078 | if (res != NULL) { |
Eric Snow | 58cfdd8 | 2014-05-29 12:31:39 -0600 | [diff] [blame] | 1079 | Py_DECREF(res); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1080 | res = exec_code_in_module(tstate, name, d, co); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1081 | } |
Eric Snow | 08197a4 | 2014-05-12 17:54:55 -0600 | [diff] [blame] | 1082 | return res; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1083 | } |
| 1084 | |
| 1085 | |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1086 | static void |
| 1087 | update_code_filenames(PyCodeObject *co, PyObject *oldname, PyObject *newname) |
| 1088 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1089 | PyObject *constants, *tmp; |
| 1090 | Py_ssize_t i, n; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1091 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1092 | if (PyUnicode_Compare(co->co_filename, oldname)) |
| 1093 | return; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1094 | |
Serhiy Storchaka | 576f132 | 2016-01-05 21:27:54 +0200 | [diff] [blame] | 1095 | Py_INCREF(newname); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 1096 | Py_XSETREF(co->co_filename, newname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1097 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1098 | constants = co->co_consts; |
| 1099 | n = PyTuple_GET_SIZE(constants); |
| 1100 | for (i = 0; i < n; i++) { |
| 1101 | tmp = PyTuple_GET_ITEM(constants, i); |
| 1102 | if (PyCode_Check(tmp)) |
| 1103 | update_code_filenames((PyCodeObject *)tmp, |
| 1104 | oldname, newname); |
| 1105 | } |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1106 | } |
| 1107 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1108 | static void |
| 1109 | update_compiled_module(PyCodeObject *co, PyObject *newname) |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1110 | { |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1111 | PyObject *oldname; |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1112 | |
Victor Stinner | 2f42ae5 | 2011-03-20 00:41:24 +0100 | [diff] [blame] | 1113 | if (PyUnicode_Compare(co->co_filename, newname) == 0) |
| 1114 | return; |
Hirokazu Yamamoto | 4f447fb | 2009-03-04 01:52:10 +0000 | [diff] [blame] | 1115 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1116 | oldname = co->co_filename; |
| 1117 | Py_INCREF(oldname); |
| 1118 | update_code_filenames(co, oldname, newname); |
| 1119 | Py_DECREF(oldname); |
Antoine Pitrou | d35cbf6 | 2009-01-06 19:02:24 +0000 | [diff] [blame] | 1120 | } |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1121 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1122 | /*[clinic input] |
| 1123 | _imp._fix_co_filename |
| 1124 | |
| 1125 | code: object(type="PyCodeObject *", subclass_of="&PyCode_Type") |
| 1126 | Code object to change. |
| 1127 | |
| 1128 | path: unicode |
| 1129 | File path to use. |
| 1130 | / |
| 1131 | |
| 1132 | Changes code.co_filename to specify the passed-in file path. |
| 1133 | [clinic start generated code]*/ |
| 1134 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1135 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1136 | _imp__fix_co_filename_impl(PyObject *module, PyCodeObject *code, |
Larry Hastings | 89964c4 | 2015-04-14 18:07:59 -0400 | [diff] [blame] | 1137 | PyObject *path) |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1138 | /*[clinic end generated code: output=1d002f100235587d input=895ba50e78b82f05]*/ |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 1139 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 1140 | { |
Brett Cannon | a6dec2e | 2014-01-10 07:43:55 -0500 | [diff] [blame] | 1141 | update_compiled_module(code, path); |
Brett Cannon | 442c9b9 | 2011-03-23 16:14:42 -0700 | [diff] [blame] | 1142 | |
| 1143 | Py_RETURN_NONE; |
| 1144 | } |
| 1145 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1146 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1147 | /* Forward */ |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1148 | static const struct _frozen * find_frozen(PyObject *); |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1149 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1150 | |
| 1151 | /* Helper to test for built-in module */ |
| 1152 | |
| 1153 | static int |
Victor Stinner | 9587286 | 2011-03-07 18:20:56 +0100 | [diff] [blame] | 1154 | is_builtin(PyObject *name) |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1155 | { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1156 | int i; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1157 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) { |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1158 | if (_PyUnicode_EqualToASCIIString(name, PyImport_Inittab[i].name)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1159 | if (PyImport_Inittab[i].initfunc == NULL) |
| 1160 | return -1; |
| 1161 | else |
| 1162 | return 1; |
| 1163 | } |
| 1164 | } |
| 1165 | return 0; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1166 | } |
| 1167 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1168 | |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 1169 | /* 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] | 1170 | possibly by fetching it from the path_importer_cache dict. If it |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 1171 | 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] | 1172 | that can handle the path item. Return None if no hook could; |
Brett Cannon | fdcdd9e | 2016-07-08 11:00:00 -0700 | [diff] [blame] | 1173 | this tells our caller that the path based finder could not find |
| 1174 | a finder for this path item. Cache the result in |
| 1175 | path_importer_cache. |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1176 | Returns a borrowed reference. */ |
| 1177 | |
| 1178 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1179 | get_path_importer(PyThreadState *tstate, PyObject *path_importer_cache, |
| 1180 | PyObject *path_hooks, PyObject *p) |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1181 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1182 | PyObject *importer; |
| 1183 | Py_ssize_t j, nhooks; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1184 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1185 | /* These conditions are the caller's responsibility: */ |
| 1186 | assert(PyList_Check(path_hooks)); |
| 1187 | assert(PyDict_Check(path_importer_cache)); |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1188 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1189 | nhooks = PyList_Size(path_hooks); |
| 1190 | if (nhooks < 0) |
| 1191 | return NULL; /* Shouldn't happen */ |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1192 | |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1193 | importer = PyDict_GetItemWithError(path_importer_cache, p); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1194 | if (importer != NULL || _PyErr_Occurred(tstate)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1195 | return importer; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1196 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1197 | /* set path_importer_cache[p] to None to avoid recursion */ |
| 1198 | if (PyDict_SetItem(path_importer_cache, p, Py_None) != 0) |
| 1199 | return NULL; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1200 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1201 | for (j = 0; j < nhooks; j++) { |
| 1202 | PyObject *hook = PyList_GetItem(path_hooks, j); |
| 1203 | if (hook == NULL) |
| 1204 | return NULL; |
Petr Viktorin | ffd9753 | 2020-02-11 17:46:57 +0100 | [diff] [blame] | 1205 | importer = PyObject_CallOneArg(hook, p); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1206 | if (importer != NULL) |
| 1207 | break; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1208 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1209 | if (!_PyErr_ExceptionMatches(tstate, PyExc_ImportError)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1210 | return NULL; |
| 1211 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1212 | _PyErr_Clear(tstate); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1213 | } |
| 1214 | if (importer == NULL) { |
Brett Cannon | aa93642 | 2012-04-27 15:30:58 -0400 | [diff] [blame] | 1215 | return Py_None; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1216 | } |
| 1217 | if (importer != NULL) { |
| 1218 | int err = PyDict_SetItem(path_importer_cache, p, importer); |
| 1219 | Py_DECREF(importer); |
| 1220 | if (err != 0) |
| 1221 | return NULL; |
| 1222 | } |
| 1223 | return importer; |
Just van Rossum | 52e14d6 | 2002-12-30 22:08:05 +0000 | [diff] [blame] | 1224 | } |
| 1225 | |
Benjamin Peterson | e502451 | 2018-09-12 12:06:42 -0700 | [diff] [blame] | 1226 | PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1227 | PyImport_GetImporter(PyObject *path) |
| 1228 | { |
| 1229 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1230 | PyObject *importer=NULL, *path_importer_cache=NULL, *path_hooks=NULL; |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 1231 | |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 1232 | path_importer_cache = PySys_GetObject("path_importer_cache"); |
| 1233 | path_hooks = PySys_GetObject("path_hooks"); |
| 1234 | if (path_importer_cache != NULL && path_hooks != NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1235 | importer = get_path_importer(tstate, path_importer_cache, |
Victor Stinner | 1e53bba | 2013-07-16 22:26:05 +0200 | [diff] [blame] | 1236 | path_hooks, path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1237 | } |
| 1238 | Py_XINCREF(importer); /* get_path_importer returns a borrowed reference */ |
| 1239 | return importer; |
Christian Heimes | 9cd1775 | 2007-11-18 19:35:23 +0000 | [diff] [blame] | 1240 | } |
| 1241 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1242 | /*[clinic input] |
| 1243 | _imp.create_builtin |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1244 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1245 | spec: object |
| 1246 | / |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1247 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1248 | Create an extension module. |
| 1249 | [clinic start generated code]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1250 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1251 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 1252 | _imp_create_builtin(PyObject *module, PyObject *spec) |
| 1253 | /*[clinic end generated code: output=ace7ff22271e6f39 input=37f966f890384e47]*/ |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1254 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1255 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1256 | struct _inittab *p; |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1257 | PyObject *name; |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 1258 | const char *namestr; |
Victor Stinner | 5eb4f59 | 2013-11-14 22:38:52 +0100 | [diff] [blame] | 1259 | PyObject *mod; |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1260 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1261 | name = PyObject_GetAttrString(spec, "name"); |
| 1262 | if (name == NULL) { |
| 1263 | return NULL; |
| 1264 | } |
| 1265 | |
Victor Stinner | 5eb4f59 | 2013-11-14 22:38:52 +0100 | [diff] [blame] | 1266 | mod = _PyImport_FindExtensionObject(name, name); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1267 | if (mod || _PyErr_Occurred(tstate)) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1268 | Py_DECREF(name); |
Raymond Hettinger | f0afe77 | 2016-08-31 08:44:11 -0700 | [diff] [blame] | 1269 | Py_XINCREF(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1270 | return mod; |
| 1271 | } |
| 1272 | |
| 1273 | namestr = PyUnicode_AsUTF8(name); |
| 1274 | if (namestr == NULL) { |
| 1275 | Py_DECREF(name); |
| 1276 | return NULL; |
| 1277 | } |
Guido van Rossum | 25ce566 | 1997-08-02 03:10:38 +0000 | [diff] [blame] | 1278 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1279 | PyObject *modules = tstate->interp->modules; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1280 | for (p = PyImport_Inittab; p->name != NULL; p++) { |
Antoine Pitrou | 6c40eb7 | 2012-01-18 20:16:09 +0100 | [diff] [blame] | 1281 | PyModuleDef *def; |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1282 | if (_PyUnicode_EqualToASCIIString(name, p->name)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1283 | if (p->initfunc == NULL) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1284 | /* Cannot re-init internal module ("sys" or "builtins") */ |
| 1285 | mod = PyImport_AddModule(namestr); |
| 1286 | Py_DECREF(name); |
| 1287 | return mod; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1288 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1289 | mod = (*p->initfunc)(); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1290 | if (mod == NULL) { |
| 1291 | Py_DECREF(name); |
| 1292 | return NULL; |
| 1293 | } |
| 1294 | if (PyObject_TypeCheck(mod, &PyModuleDef_Type)) { |
| 1295 | Py_DECREF(name); |
| 1296 | return PyModule_FromDefAndSpec((PyModuleDef*)mod, spec); |
| 1297 | } else { |
| 1298 | /* Remember pointer to module init function. */ |
| 1299 | def = PyModule_GetDef(mod); |
Christian Heimes | a78b627 | 2016-09-09 00:25:03 +0200 | [diff] [blame] | 1300 | if (def == NULL) { |
| 1301 | Py_DECREF(name); |
| 1302 | return NULL; |
| 1303 | } |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1304 | def->m_base.m_init = p->initfunc; |
Eric Snow | d393c1b | 2017-09-14 12:18:12 -0600 | [diff] [blame] | 1305 | if (_PyImport_FixupExtensionObject(mod, name, name, |
| 1306 | modules) < 0) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1307 | Py_DECREF(name); |
| 1308 | return NULL; |
| 1309 | } |
| 1310 | Py_DECREF(name); |
| 1311 | return mod; |
| 1312 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1313 | } |
| 1314 | } |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 1315 | Py_DECREF(name); |
| 1316 | Py_RETURN_NONE; |
Guido van Rossum | 7f133ed | 1991-02-19 12:23:57 +0000 | [diff] [blame] | 1317 | } |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1318 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1319 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1320 | /* Frozen modules */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1321 | |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1322 | static const struct _frozen * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1323 | find_frozen(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1324 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1325 | const struct _frozen *p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1326 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1327 | if (name == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1328 | return NULL; |
Benjamin Peterson | d968e27 | 2008-11-05 22:48:33 +0000 | [diff] [blame] | 1329 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1330 | for (p = PyImport_FrozenModules; ; p++) { |
| 1331 | if (p->name == NULL) |
| 1332 | return NULL; |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1333 | if (_PyUnicode_EqualToASCIIString(name, p->name)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1334 | break; |
| 1335 | } |
| 1336 | return p; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1337 | } |
| 1338 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1339 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1340 | get_frozen_object(PyObject *name) |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1341 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1342 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1343 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1344 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1345 | if (p == NULL) { |
| 1346 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1347 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1348 | name); |
| 1349 | return NULL; |
| 1350 | } |
| 1351 | if (p->code == NULL) { |
| 1352 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1353 | "Excluded frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1354 | name); |
| 1355 | return NULL; |
| 1356 | } |
| 1357 | size = p->size; |
| 1358 | if (size < 0) |
| 1359 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1360 | return PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1361 | } |
| 1362 | |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1363 | static PyObject * |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1364 | is_frozen_package(PyObject *name) |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1365 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1366 | const struct _frozen *p = find_frozen(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1367 | int size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1368 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1369 | if (p == NULL) { |
| 1370 | PyErr_Format(PyExc_ImportError, |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1371 | "No such frozen object named %R", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1372 | name); |
| 1373 | return NULL; |
| 1374 | } |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1375 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1376 | size = p->size; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1377 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1378 | if (size < 0) |
| 1379 | Py_RETURN_TRUE; |
| 1380 | else |
| 1381 | Py_RETURN_FALSE; |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 1382 | } |
| 1383 | |
| 1384 | |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1385 | /* Initialize a frozen module. |
Brett Cannon | 3c2ac44 | 2009-03-08 20:49:47 +0000 | [diff] [blame] | 1386 | 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] | 1387 | an exception set if the initialization failed. |
| 1388 | This function is also used from frozenmain.c */ |
Guido van Rossum | 0b34490 | 1995-02-07 15:35:27 +0000 | [diff] [blame] | 1389 | |
| 1390 | int |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1391 | PyImport_ImportFrozenModuleObject(PyObject *name) |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1392 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1393 | PyThreadState *tstate = _PyThreadState_GET(); |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 1394 | const struct _frozen *p; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1395 | PyObject *co, *m, *d; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1396 | int ispackage; |
| 1397 | int size; |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 1398 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1399 | p = find_frozen(name); |
| 1400 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1401 | if (p == NULL) |
| 1402 | return 0; |
| 1403 | if (p->code == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1404 | _PyErr_Format(tstate, PyExc_ImportError, |
| 1405 | "Excluded frozen object named %R", |
| 1406 | name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1407 | return -1; |
| 1408 | } |
| 1409 | size = p->size; |
| 1410 | ispackage = (size < 0); |
| 1411 | if (ispackage) |
| 1412 | size = -size; |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1413 | co = PyMarshal_ReadObjectFromString((const char *)p->code, size); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1414 | if (co == NULL) |
| 1415 | return -1; |
| 1416 | if (!PyCode_Check(co)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1417 | _PyErr_Format(tstate, PyExc_TypeError, |
| 1418 | "frozen object %R is not a code object", |
| 1419 | name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1420 | goto err_return; |
| 1421 | } |
| 1422 | if (ispackage) { |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1423 | /* Set __path__ to the empty list */ |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1424 | PyObject *l; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1425 | int err; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1426 | m = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1427 | if (m == NULL) |
| 1428 | goto err_return; |
| 1429 | d = PyModule_GetDict(m); |
Brett Cannon | 3e0651b | 2013-05-31 23:18:39 -0400 | [diff] [blame] | 1430 | l = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1431 | if (l == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1432 | goto err_return; |
| 1433 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1434 | err = PyDict_SetItemString(d, "__path__", l); |
| 1435 | Py_DECREF(l); |
| 1436 | if (err != 0) |
| 1437 | goto err_return; |
| 1438 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1439 | d = module_dict_for_exec(tstate, name); |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1440 | if (d == NULL) { |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1441 | goto err_return; |
Brett Cannon | 18fc4e7 | 2014-04-04 10:01:46 -0400 | [diff] [blame] | 1442 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1443 | m = exec_code_in_module(tstate, name, d, co); |
| 1444 | if (m == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1445 | goto err_return; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1446 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1447 | Py_DECREF(co); |
| 1448 | Py_DECREF(m); |
| 1449 | return 1; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1450 | |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1451 | err_return: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1452 | Py_DECREF(co); |
| 1453 | return -1; |
Guido van Rossum | f56e3db | 1993-04-01 20:59:32 +0000 | [diff] [blame] | 1454 | } |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1455 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1456 | int |
Serhiy Storchaka | c679227 | 2013-10-19 21:03:34 +0300 | [diff] [blame] | 1457 | PyImport_ImportFrozenModule(const char *name) |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 1458 | { |
| 1459 | PyObject *nameobj; |
| 1460 | int ret; |
| 1461 | nameobj = PyUnicode_InternFromString(name); |
| 1462 | if (nameobj == NULL) |
| 1463 | return -1; |
| 1464 | ret = PyImport_ImportFrozenModuleObject(nameobj); |
| 1465 | Py_DECREF(nameobj); |
| 1466 | return ret; |
| 1467 | } |
| 1468 | |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1469 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1470 | /* Import a module, either built-in, frozen, or external, and return |
Guido van Rossum | 7f9fa97 | 1995-01-20 16:53:12 +0000 | [diff] [blame] | 1471 | its module object WITH INCREMENTED REFERENCE COUNT */ |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1472 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1473 | PyObject * |
Jeremy Hylton | af68c87 | 2005-12-10 18:50:16 +0000 | [diff] [blame] | 1474 | PyImport_ImportModule(const char *name) |
Guido van Rossum | 74e6a11 | 1994-08-29 12:54:38 +0000 | [diff] [blame] | 1475 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1476 | PyObject *pname; |
| 1477 | PyObject *result; |
Marc-André Lemburg | 3c61c35 | 2001-02-09 19:40:15 +0000 | [diff] [blame] | 1478 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1479 | pname = PyUnicode_FromString(name); |
| 1480 | if (pname == NULL) |
| 1481 | return NULL; |
| 1482 | result = PyImport_Import(pname); |
| 1483 | Py_DECREF(pname); |
| 1484 | return result; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 1485 | } |
| 1486 | |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1487 | |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1488 | /* Import a module without blocking |
| 1489 | * |
| 1490 | * At first it tries to fetch the module from sys.modules. If the module was |
| 1491 | * never loaded before it loads it with PyImport_ImportModule() unless another |
| 1492 | * thread holds the import lock. In the latter case the function raises an |
| 1493 | * ImportError instead of blocking. |
| 1494 | * |
| 1495 | * Returns the module object with incremented ref count. |
| 1496 | */ |
| 1497 | PyObject * |
| 1498 | PyImport_ImportModuleNoBlock(const char *name) |
| 1499 | { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1500 | return PyImport_ImportModule(name); |
Christian Heimes | 072c0f1 | 2008-01-03 23:01:04 +0000 | [diff] [blame] | 1501 | } |
| 1502 | |
Guido van Rossum | 17fc85f | 1997-09-06 18:52:03 +0000 | [diff] [blame] | 1503 | |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1504 | /* Remove importlib frames from the traceback, |
| 1505 | * except in Verbose mode. */ |
| 1506 | static void |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1507 | remove_importlib_frames(PyThreadState *tstate) |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1508 | { |
| 1509 | const char *importlib_filename = "<frozen importlib._bootstrap>"; |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 1510 | const char *external_filename = "<frozen importlib._bootstrap_external>"; |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1511 | const char *remove_frames = "_call_with_frames_removed"; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1512 | int always_trim = 0; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1513 | int in_importlib = 0; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1514 | PyObject *exception, *value, *base_tb, *tb; |
Benjamin Peterson | fa87370 | 2012-07-09 13:43:53 -0700 | [diff] [blame] | 1515 | PyObject **prev_link, **outer_link = NULL; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1516 | |
| 1517 | /* Synopsis: if it's an ImportError, we trim all importlib chunks |
Nick Coghlan | 42c0766 | 2012-07-31 21:14:18 +1000 | [diff] [blame] | 1518 | from the traceback. We always trim chunks |
| 1519 | which end with a call to "_call_with_frames_removed". */ |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1520 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1521 | _PyErr_Fetch(tstate, &exception, &value, &base_tb); |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 1522 | if (!exception || _PyInterpreterState_GetConfig(tstate->interp)->verbose) { |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1523 | goto done; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1524 | } |
| 1525 | |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1526 | if (PyType_IsSubtype((PyTypeObject *) exception, |
| 1527 | (PyTypeObject *) PyExc_ImportError)) |
| 1528 | always_trim = 1; |
| 1529 | |
| 1530 | prev_link = &base_tb; |
| 1531 | tb = base_tb; |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1532 | while (tb != NULL) { |
| 1533 | PyTracebackObject *traceback = (PyTracebackObject *)tb; |
| 1534 | PyObject *next = (PyObject *) traceback->tb_next; |
| 1535 | PyFrameObject *frame = traceback->tb_frame; |
Victor Stinner | a42ca74 | 2020-04-28 19:01:31 +0200 | [diff] [blame] | 1536 | PyCodeObject *code = PyFrame_GetCode(frame); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1537 | int now_in_importlib; |
| 1538 | |
| 1539 | assert(PyTraceBack_Check(tb)); |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1540 | now_in_importlib = _PyUnicode_EqualToASCIIString(code->co_filename, importlib_filename) || |
| 1541 | _PyUnicode_EqualToASCIIString(code->co_filename, external_filename); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1542 | if (now_in_importlib && !in_importlib) { |
| 1543 | /* This is the link to this chunk of importlib tracebacks */ |
| 1544 | outer_link = prev_link; |
| 1545 | } |
| 1546 | in_importlib = now_in_importlib; |
| 1547 | |
| 1548 | if (in_importlib && |
| 1549 | (always_trim || |
Serhiy Storchaka | f4934ea | 2016-11-16 10:17:58 +0200 | [diff] [blame] | 1550 | _PyUnicode_EqualToASCIIString(code->co_name, remove_frames))) { |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1551 | Py_XINCREF(next); |
Serhiy Storchaka | ec39756 | 2016-04-06 09:50:03 +0300 | [diff] [blame] | 1552 | Py_XSETREF(*outer_link, next); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1553 | prev_link = outer_link; |
| 1554 | } |
| 1555 | else { |
| 1556 | prev_link = (PyObject **) &traceback->tb_next; |
| 1557 | } |
Victor Stinner | 8852ad4 | 2020-04-29 01:28:13 +0200 | [diff] [blame] | 1558 | Py_DECREF(code); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1559 | tb = next; |
| 1560 | } |
| 1561 | done: |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1562 | _PyErr_Restore(tstate, exception, value, base_tb); |
Antoine Pitrou | bc07a5c | 2012-07-08 12:01:27 +0200 | [diff] [blame] | 1563 | } |
| 1564 | |
| 1565 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1566 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1567 | resolve_name(PyThreadState *tstate, PyObject *name, PyObject *globals, int level) |
Thomas Wouters | f7f438b | 2006-02-28 16:09:29 +0000 | [diff] [blame] | 1568 | { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1569 | _Py_IDENTIFIER(__package__); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1570 | _Py_IDENTIFIER(__name__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1571 | _Py_IDENTIFIER(parent); |
| 1572 | PyObject *abs_name; |
| 1573 | PyObject *package = NULL; |
| 1574 | PyObject *spec; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1575 | Py_ssize_t last_dot; |
| 1576 | PyObject *base; |
| 1577 | int level_up; |
| 1578 | |
| 1579 | if (globals == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1580 | _PyErr_SetString(tstate, PyExc_KeyError, "'__name__' not in globals"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1581 | goto error; |
| 1582 | } |
| 1583 | if (!PyDict_Check(globals)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1584 | _PyErr_SetString(tstate, PyExc_TypeError, "globals must be a dict"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1585 | goto error; |
| 1586 | } |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1587 | package = _PyDict_GetItemIdWithError(globals, &PyId___package__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1588 | if (package == Py_None) { |
| 1589 | package = NULL; |
| 1590 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1591 | else if (package == NULL && _PyErr_Occurred(tstate)) { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1592 | goto error; |
| 1593 | } |
| 1594 | spec = _PyDict_GetItemIdWithError(globals, &PyId___spec__); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1595 | if (spec == NULL && _PyErr_Occurred(tstate)) { |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1596 | goto error; |
| 1597 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1598 | |
| 1599 | if (package != NULL) { |
| 1600 | Py_INCREF(package); |
| 1601 | if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1602 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1603 | "package must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1604 | goto error; |
| 1605 | } |
| 1606 | else if (spec != NULL && spec != Py_None) { |
| 1607 | int equal; |
| 1608 | PyObject *parent = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1609 | if (parent == NULL) { |
| 1610 | goto error; |
| 1611 | } |
| 1612 | |
| 1613 | equal = PyObject_RichCompareBool(package, parent, Py_EQ); |
| 1614 | Py_DECREF(parent); |
| 1615 | if (equal < 0) { |
| 1616 | goto error; |
| 1617 | } |
| 1618 | else if (equal == 0) { |
| 1619 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1620 | "__package__ != __spec__.parent", 1) < 0) { |
| 1621 | goto error; |
| 1622 | } |
| 1623 | } |
| 1624 | } |
| 1625 | } |
| 1626 | else if (spec != NULL && spec != Py_None) { |
| 1627 | package = _PyObject_GetAttrId(spec, &PyId_parent); |
| 1628 | if (package == NULL) { |
| 1629 | goto error; |
| 1630 | } |
| 1631 | else if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1632 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1633 | "__spec__.parent must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1634 | goto error; |
| 1635 | } |
| 1636 | } |
| 1637 | else { |
| 1638 | if (PyErr_WarnEx(PyExc_ImportWarning, |
| 1639 | "can't resolve package from __spec__ or __package__, " |
| 1640 | "falling back on __name__ and __path__", 1) < 0) { |
| 1641 | goto error; |
| 1642 | } |
| 1643 | |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1644 | package = _PyDict_GetItemIdWithError(globals, &PyId___name__); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1645 | if (package == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1646 | if (!_PyErr_Occurred(tstate)) { |
| 1647 | _PyErr_SetString(tstate, PyExc_KeyError, |
| 1648 | "'__name__' not in globals"); |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1649 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1650 | goto error; |
| 1651 | } |
| 1652 | |
| 1653 | Py_INCREF(package); |
| 1654 | if (!PyUnicode_Check(package)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1655 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1656 | "__name__ must be a string"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1657 | goto error; |
| 1658 | } |
| 1659 | |
Serhiy Storchaka | a24107b | 2019-02-25 17:59:46 +0200 | [diff] [blame] | 1660 | if (_PyDict_GetItemIdWithError(globals, &PyId___path__) == NULL) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1661 | Py_ssize_t dot; |
| 1662 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1663 | if (_PyErr_Occurred(tstate) || PyUnicode_READY(package) < 0) { |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1664 | goto error; |
| 1665 | } |
| 1666 | |
| 1667 | dot = PyUnicode_FindChar(package, '.', |
| 1668 | 0, PyUnicode_GET_LENGTH(package), -1); |
| 1669 | if (dot == -2) { |
| 1670 | goto error; |
| 1671 | } |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1672 | else if (dot == -1) { |
| 1673 | goto no_parent_error; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1674 | } |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1675 | PyObject *substr = PyUnicode_Substring(package, 0, dot); |
| 1676 | if (substr == NULL) { |
| 1677 | goto error; |
| 1678 | } |
| 1679 | Py_SETREF(package, substr); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1680 | } |
| 1681 | } |
| 1682 | |
| 1683 | last_dot = PyUnicode_GET_LENGTH(package); |
| 1684 | if (last_dot == 0) { |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1685 | goto no_parent_error; |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1686 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1687 | |
| 1688 | for (level_up = 1; level_up < level; level_up += 1) { |
| 1689 | last_dot = PyUnicode_FindChar(package, '.', 0, last_dot, -1); |
| 1690 | if (last_dot == -2) { |
| 1691 | goto error; |
| 1692 | } |
| 1693 | else if (last_dot == -1) { |
Ngalim Siregar | c5fa449 | 2019-08-03 12:46:02 +0700 | [diff] [blame] | 1694 | _PyErr_SetString(tstate, PyExc_ImportError, |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1695 | "attempted relative import beyond top-level " |
| 1696 | "package"); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1697 | goto error; |
| 1698 | } |
| 1699 | } |
| 1700 | |
| 1701 | base = PyUnicode_Substring(package, 0, last_dot); |
| 1702 | Py_DECREF(package); |
| 1703 | if (base == NULL || PyUnicode_GET_LENGTH(name) == 0) { |
| 1704 | return base; |
| 1705 | } |
| 1706 | |
| 1707 | abs_name = PyUnicode_FromFormat("%U.%U", base, name); |
| 1708 | Py_DECREF(base); |
| 1709 | return abs_name; |
| 1710 | |
Ben Lewis | 92420b3 | 2019-09-11 20:09:47 +1000 | [diff] [blame] | 1711 | no_parent_error: |
| 1712 | _PyErr_SetString(tstate, PyExc_ImportError, |
| 1713 | "attempted relative import " |
| 1714 | "with no known parent package"); |
| 1715 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1716 | error: |
| 1717 | Py_XDECREF(package); |
| 1718 | return NULL; |
| 1719 | } |
| 1720 | |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1721 | static PyObject * |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1722 | import_find_and_load(PyThreadState *tstate, PyObject *abs_name) |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1723 | { |
| 1724 | _Py_IDENTIFIER(_find_and_load); |
| 1725 | PyObject *mod = NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1726 | PyInterpreterState *interp = tstate->interp; |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 1727 | int import_time = _PyInterpreterState_GetConfig(interp)->import_time; |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1728 | static int import_level; |
| 1729 | static _PyTime_t accumulated; |
| 1730 | |
| 1731 | _PyTime_t t1 = 0, accumulated_copy = accumulated; |
| 1732 | |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1733 | PyObject *sys_path = PySys_GetObject("path"); |
| 1734 | PyObject *sys_meta_path = PySys_GetObject("meta_path"); |
| 1735 | PyObject *sys_path_hooks = PySys_GetObject("path_hooks"); |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1736 | if (_PySys_Audit(tstate, "import", "OOOOO", |
| 1737 | abs_name, Py_None, sys_path ? sys_path : Py_None, |
| 1738 | sys_meta_path ? sys_meta_path : Py_None, |
| 1739 | sys_path_hooks ? sys_path_hooks : Py_None) < 0) { |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1740 | return NULL; |
| 1741 | } |
| 1742 | |
| 1743 | |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1744 | /* XOptions is initialized after first some imports. |
| 1745 | * So we can't have negative cache before completed initialization. |
| 1746 | * Anyway, importlib._find_and_load is much slower than |
| 1747 | * _PyDict_GetItemIdWithError(). |
| 1748 | */ |
| 1749 | if (import_time) { |
| 1750 | static int header = 1; |
| 1751 | if (header) { |
| 1752 | fputs("import time: self [us] | cumulative | imported package\n", |
| 1753 | stderr); |
| 1754 | header = 0; |
| 1755 | } |
| 1756 | |
| 1757 | import_level++; |
| 1758 | t1 = _PyTime_GetPerfCounter(); |
| 1759 | accumulated = 0; |
| 1760 | } |
| 1761 | |
| 1762 | if (PyDTrace_IMPORT_FIND_LOAD_START_ENABLED()) |
Andy Lester | fc2d8d6 | 2020-03-30 15:19:14 -0500 | [diff] [blame] | 1763 | PyDTrace_IMPORT_FIND_LOAD_START(PyUnicode_AsUTF8(abs_name)); |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1764 | |
| 1765 | mod = _PyObject_CallMethodIdObjArgs(interp->importlib, |
| 1766 | &PyId__find_and_load, abs_name, |
| 1767 | interp->import_func, NULL); |
| 1768 | |
| 1769 | if (PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED()) |
Andy Lester | fc2d8d6 | 2020-03-30 15:19:14 -0500 | [diff] [blame] | 1770 | PyDTrace_IMPORT_FIND_LOAD_DONE(PyUnicode_AsUTF8(abs_name), |
Neil Schemenauer | eea3cc1 | 2017-12-03 09:26:03 -0800 | [diff] [blame] | 1771 | mod != NULL); |
| 1772 | |
| 1773 | if (import_time) { |
| 1774 | _PyTime_t cum = _PyTime_GetPerfCounter() - t1; |
| 1775 | |
| 1776 | import_level--; |
| 1777 | fprintf(stderr, "import time: %9ld | %10ld | %*s%s\n", |
| 1778 | (long)_PyTime_AsMicroseconds(cum - accumulated, _PyTime_ROUND_CEILING), |
| 1779 | (long)_PyTime_AsMicroseconds(cum, _PyTime_ROUND_CEILING), |
| 1780 | import_level*2, "", PyUnicode_AsUTF8(abs_name)); |
| 1781 | |
| 1782 | accumulated = accumulated_copy + cum; |
| 1783 | } |
| 1784 | |
| 1785 | return mod; |
| 1786 | } |
| 1787 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1788 | PyObject * |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1789 | PyImport_GetModule(PyObject *name) |
| 1790 | { |
| 1791 | PyThreadState *tstate = _PyThreadState_GET(); |
| 1792 | PyObject *mod; |
| 1793 | |
| 1794 | mod = import_get_module(tstate, name); |
| 1795 | if (mod != NULL && mod != Py_None) { |
| 1796 | if (import_ensure_initialized(tstate, mod, name) < 0) { |
| 1797 | Py_DECREF(mod); |
| 1798 | remove_importlib_frames(tstate); |
| 1799 | return NULL; |
| 1800 | } |
| 1801 | } |
| 1802 | return mod; |
| 1803 | } |
| 1804 | |
| 1805 | PyObject * |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1806 | PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals, |
| 1807 | PyObject *locals, PyObject *fromlist, |
| 1808 | int level) |
| 1809 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1810 | PyThreadState *tstate = _PyThreadState_GET(); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1811 | _Py_IDENTIFIER(_handle_fromlist); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1812 | PyObject *abs_name = NULL; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1813 | PyObject *final_mod = NULL; |
| 1814 | PyObject *mod = NULL; |
| 1815 | PyObject *package = NULL; |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1816 | PyInterpreterState *interp = tstate->interp; |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1817 | int has_from; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1818 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1819 | if (name == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1820 | _PyErr_SetString(tstate, PyExc_ValueError, "Empty module name"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1821 | goto error; |
| 1822 | } |
| 1823 | |
| 1824 | /* The below code is importlib.__import__() & _gcd_import(), ported to C |
| 1825 | for added performance. */ |
| 1826 | |
| 1827 | if (!PyUnicode_Check(name)) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1828 | _PyErr_SetString(tstate, PyExc_TypeError, |
| 1829 | "module name must be a string"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1830 | goto error; |
| 1831 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1832 | if (PyUnicode_READY(name) < 0) { |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1833 | goto error; |
| 1834 | } |
| 1835 | if (level < 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1836 | _PyErr_SetString(tstate, PyExc_ValueError, "level must be >= 0"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1837 | goto error; |
| 1838 | } |
Brett Cannon | 849113a | 2016-01-22 15:25:50 -0800 | [diff] [blame] | 1839 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1840 | if (level > 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1841 | abs_name = resolve_name(tstate, name, globals, level); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1842 | if (abs_name == NULL) |
Brett Cannon | 9fa8126 | 2016-01-22 16:39:02 -0800 | [diff] [blame] | 1843 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1844 | } |
| 1845 | else { /* level == 0 */ |
| 1846 | if (PyUnicode_GET_LENGTH(name) == 0) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1847 | _PyErr_SetString(tstate, PyExc_ValueError, "Empty module name"); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1848 | goto error; |
| 1849 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1850 | abs_name = name; |
| 1851 | Py_INCREF(abs_name); |
| 1852 | } |
| 1853 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1854 | mod = import_get_module(tstate, abs_name); |
| 1855 | if (mod == NULL && _PyErr_Occurred(tstate)) { |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1856 | goto error; |
| 1857 | } |
| 1858 | |
Serhiy Storchaka | b4baace | 2017-07-06 08:09:03 +0300 | [diff] [blame] | 1859 | if (mod != NULL && mod != Py_None) { |
Joannah Nanjekye | 37c2220 | 2019-09-11 13:47:39 +0100 | [diff] [blame] | 1860 | if (import_ensure_initialized(tstate, mod, name) < 0) { |
| 1861 | goto error; |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1862 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1863 | } |
| 1864 | else { |
Neil Schemenauer | 11cc289 | 2017-12-07 16:24:59 -0800 | [diff] [blame] | 1865 | Py_XDECREF(mod); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1866 | mod = import_find_and_load(tstate, abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1867 | if (mod == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1868 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1869 | } |
| 1870 | } |
| 1871 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1872 | has_from = 0; |
| 1873 | if (fromlist != NULL && fromlist != Py_None) { |
| 1874 | has_from = PyObject_IsTrue(fromlist); |
| 1875 | if (has_from < 0) |
| 1876 | goto error; |
| 1877 | } |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1878 | if (!has_from) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1879 | Py_ssize_t len = PyUnicode_GET_LENGTH(name); |
| 1880 | if (level == 0 || len > 0) { |
| 1881 | Py_ssize_t dot; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1882 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1883 | dot = PyUnicode_FindChar(name, '.', 0, len, 1); |
| 1884 | if (dot == -2) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1885 | goto error; |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1886 | } |
| 1887 | |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1888 | if (dot == -1) { |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1889 | /* No dot in module name, simple exit */ |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1890 | final_mod = mod; |
| 1891 | Py_INCREF(mod); |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1892 | goto error; |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1893 | } |
| 1894 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1895 | if (level == 0) { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1896 | PyObject *front = PyUnicode_Substring(name, 0, dot); |
| 1897 | if (front == NULL) { |
| 1898 | goto error; |
| 1899 | } |
| 1900 | |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1901 | final_mod = PyImport_ImportModuleLevelObject(front, NULL, NULL, NULL, 0); |
Antoine Pitrou | b78174c | 2012-05-06 17:15:23 +0200 | [diff] [blame] | 1902 | Py_DECREF(front); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1903 | } |
| 1904 | else { |
Victor Stinner | 744c34e | 2016-05-20 11:36:13 +0200 | [diff] [blame] | 1905 | Py_ssize_t cut_off = len - dot; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1906 | Py_ssize_t abs_name_len = PyUnicode_GET_LENGTH(abs_name); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1907 | PyObject *to_return = PyUnicode_Substring(abs_name, 0, |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1908 | abs_name_len - cut_off); |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1909 | if (to_return == NULL) { |
Antoine Pitrou | ea3eb88 | 2012-05-17 18:55:59 +0200 | [diff] [blame] | 1910 | goto error; |
Antoine Pitrou | 22a1d17 | 2012-04-16 22:06:21 +0200 | [diff] [blame] | 1911 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1912 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1913 | final_mod = import_get_module(tstate, to_return); |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1914 | Py_DECREF(to_return); |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1915 | if (final_mod == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1916 | if (!_PyErr_Occurred(tstate)) { |
| 1917 | _PyErr_Format(tstate, PyExc_KeyError, |
| 1918 | "%R not in sys.modules as expected", |
| 1919 | to_return); |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1920 | } |
Serhiy Storchaka | 133138a | 2016-08-02 22:51:21 +0300 | [diff] [blame] | 1921 | goto error; |
Brett Cannon | 49f8d8b | 2012-04-14 21:50:00 -0400 | [diff] [blame] | 1922 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1923 | } |
| 1924 | } |
| 1925 | else { |
| 1926 | final_mod = mod; |
| 1927 | Py_INCREF(mod); |
| 1928 | } |
| 1929 | } |
| 1930 | else { |
Serhiy Storchaka | 4e24425 | 2018-03-11 10:52:37 +0200 | [diff] [blame] | 1931 | PyObject *path; |
| 1932 | if (_PyObject_LookupAttrId(mod, &PyId___path__, &path) < 0) { |
| 1933 | goto error; |
| 1934 | } |
| 1935 | if (path) { |
| 1936 | Py_DECREF(path); |
| 1937 | final_mod = _PyObject_CallMethodIdObjArgs( |
| 1938 | interp->importlib, &PyId__handle_fromlist, |
| 1939 | mod, fromlist, interp->import_func, NULL); |
| 1940 | } |
| 1941 | else { |
| 1942 | final_mod = mod; |
| 1943 | Py_INCREF(mod); |
| 1944 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1945 | } |
Antoine Pitrou | 6efa50a | 2012-05-07 21:41:59 +0200 | [diff] [blame] | 1946 | |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1947 | error: |
| 1948 | Py_XDECREF(abs_name); |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1949 | Py_XDECREF(mod); |
| 1950 | Py_XDECREF(package); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1951 | if (final_mod == NULL) { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 1952 | remove_importlib_frames(tstate); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 1953 | } |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 1954 | return final_mod; |
Guido van Rossum | 75acc9c | 1998-03-03 22:26:50 +0000 | [diff] [blame] | 1955 | } |
| 1956 | |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1957 | PyObject * |
Benjamin Peterson | 04778a8 | 2011-05-25 09:29:00 -0500 | [diff] [blame] | 1958 | PyImport_ImportModuleLevel(const char *name, PyObject *globals, PyObject *locals, |
Victor Stinner | fe93faf | 2011-03-14 15:54:52 -0400 | [diff] [blame] | 1959 | PyObject *fromlist, int level) |
| 1960 | { |
| 1961 | PyObject *nameobj, *mod; |
| 1962 | nameobj = PyUnicode_FromString(name); |
| 1963 | if (nameobj == NULL) |
| 1964 | return NULL; |
| 1965 | mod = PyImport_ImportModuleLevelObject(nameobj, globals, locals, |
| 1966 | fromlist, level); |
| 1967 | Py_DECREF(nameobj); |
| 1968 | return mod; |
| 1969 | } |
| 1970 | |
| 1971 | |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1972 | /* Re-import a module of any kind and return its module object, WITH |
| 1973 | INCREMENTED REFERENCE COUNT */ |
| 1974 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 1975 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 1976 | PyImport_ReloadModule(PyObject *m) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1977 | { |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1978 | _Py_IDENTIFIER(importlib); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1979 | _Py_IDENTIFIER(reload); |
| 1980 | PyObject *reloaded_module = NULL; |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1981 | PyObject *importlib = _PyImport_GetModuleId(&PyId_importlib); |
| 1982 | if (importlib == NULL) { |
Stefan Krah | 027b09c | 2019-03-25 21:50:58 +0100 | [diff] [blame] | 1983 | if (PyErr_Occurred()) { |
| 1984 | return NULL; |
| 1985 | } |
| 1986 | |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1987 | importlib = PyImport_ImportModule("importlib"); |
| 1988 | if (importlib == NULL) { |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1989 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1990 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1991 | } |
Victor Stinner | ad3c03b | 2011-03-14 09:21:33 -0400 | [diff] [blame] | 1992 | |
Robert Rouhani | f40bd46 | 2020-05-01 16:28:06 -0700 | [diff] [blame] | 1993 | reloaded_module = _PyObject_CallMethodIdOneArg(importlib, &PyId_reload, m); |
| 1994 | Py_DECREF(importlib); |
Brett Cannon | 62228db | 2012-04-29 14:38:11 -0400 | [diff] [blame] | 1995 | return reloaded_module; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 1996 | } |
| 1997 | |
| 1998 | |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 1999 | /* Higher-level import emulator which emulates the "import" statement |
| 2000 | more accurately -- it invokes the __import__() function from the |
| 2001 | builtins of the current globals. This means that the import is |
| 2002 | done using whatever import hooks are installed in the current |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 2003 | environment. |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 2004 | A dummy list ["__doc__"] is passed as the 4th argument so that |
Neal Norwitz | 80e7f27 | 2007-08-26 06:45:23 +0000 | [diff] [blame] | 2005 | e.g. PyImport_Import(PyUnicode_FromString("win32com.client.gencache")) |
Guido van Rossum | 6058eb4 | 1998-12-21 19:51:00 +0000 | [diff] [blame] | 2006 | will return <module "gencache"> instead of <module "win32com">. */ |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2007 | |
| 2008 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2009 | PyImport_Import(PyObject *module_name) |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2010 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 2011 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2012 | static PyObject *silly_list = NULL; |
| 2013 | static PyObject *builtins_str = NULL; |
| 2014 | static PyObject *import_str = NULL; |
| 2015 | PyObject *globals = NULL; |
| 2016 | PyObject *import = NULL; |
| 2017 | PyObject *builtins = NULL; |
| 2018 | PyObject *r = NULL; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2019 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2020 | /* Initialize constant string objects */ |
| 2021 | if (silly_list == NULL) { |
| 2022 | import_str = PyUnicode_InternFromString("__import__"); |
| 2023 | if (import_str == NULL) |
| 2024 | return NULL; |
| 2025 | builtins_str = PyUnicode_InternFromString("__builtins__"); |
| 2026 | if (builtins_str == NULL) |
| 2027 | return NULL; |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 2028 | silly_list = PyList_New(0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2029 | if (silly_list == NULL) |
| 2030 | return NULL; |
| 2031 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2032 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2033 | /* Get the builtins from current globals */ |
| 2034 | globals = PyEval_GetGlobals(); |
| 2035 | if (globals != NULL) { |
| 2036 | Py_INCREF(globals); |
| 2037 | builtins = PyObject_GetItem(globals, builtins_str); |
| 2038 | if (builtins == NULL) |
| 2039 | goto err; |
| 2040 | } |
| 2041 | else { |
| 2042 | /* No globals -- use standard builtins, and fake globals */ |
| 2043 | builtins = PyImport_ImportModuleLevel("builtins", |
| 2044 | NULL, NULL, NULL, 0); |
| 2045 | if (builtins == NULL) |
| 2046 | return NULL; |
| 2047 | globals = Py_BuildValue("{OO}", builtins_str, builtins); |
| 2048 | if (globals == NULL) |
| 2049 | goto err; |
| 2050 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2051 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2052 | /* Get the __import__ function from the builtins */ |
| 2053 | if (PyDict_Check(builtins)) { |
| 2054 | import = PyObject_GetItem(builtins, import_str); |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 2055 | if (import == NULL) { |
| 2056 | _PyErr_SetObject(tstate, PyExc_KeyError, import_str); |
| 2057 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2058 | } |
| 2059 | else |
| 2060 | import = PyObject_GetAttr(builtins, import_str); |
| 2061 | if (import == NULL) |
| 2062 | goto err; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2063 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2064 | /* Call the __import__ function with the proper argument list |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 2065 | Always use absolute import here. |
| 2066 | Calling for side-effect of import. */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2067 | r = PyObject_CallFunction(import, "OOOOi", module_name, globals, |
| 2068 | globals, silly_list, 0, NULL); |
Brett Cannon | bc2eff3 | 2010-09-19 21:39:02 +0000 | [diff] [blame] | 2069 | if (r == NULL) |
| 2070 | goto err; |
| 2071 | Py_DECREF(r); |
| 2072 | |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 2073 | r = import_get_module(tstate, module_name); |
| 2074 | if (r == NULL && !_PyErr_Occurred(tstate)) { |
| 2075 | _PyErr_SetObject(tstate, PyExc_KeyError, module_name); |
Serhiy Storchaka | 145541c | 2017-06-15 20:54:38 +0300 | [diff] [blame] | 2076 | } |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2077 | |
| 2078 | err: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2079 | Py_XDECREF(globals); |
| 2080 | Py_XDECREF(builtins); |
| 2081 | Py_XDECREF(import); |
Tim Peters | 50d8d37 | 2001-02-28 05:34:27 +0000 | [diff] [blame] | 2082 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2083 | return r; |
Guido van Rossum | d47a0a8 | 1997-08-14 20:11:26 +0000 | [diff] [blame] | 2084 | } |
| 2085 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2086 | /*[clinic input] |
| 2087 | _imp.extension_suffixes |
| 2088 | |
| 2089 | Returns the list of file suffixes used to identify extension modules. |
| 2090 | [clinic start generated code]*/ |
| 2091 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2092 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2093 | _imp_extension_suffixes_impl(PyObject *module) |
| 2094 | /*[clinic end generated code: output=0bf346e25a8f0cd3 input=ecdeeecfcb6f839e]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2095 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2096 | PyObject *list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2097 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2098 | list = PyList_New(0); |
| 2099 | if (list == NULL) |
| 2100 | return NULL; |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 2101 | #ifdef HAVE_DYNAMIC_LOADING |
Stéphane Wirtel | 0d765e3 | 2019-03-20 00:37:20 +0100 | [diff] [blame] | 2102 | const char *suffix; |
| 2103 | unsigned int index = 0; |
| 2104 | |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 2105 | while ((suffix = _PyImport_DynLoadFiletab[index])) { |
| 2106 | PyObject *item = PyUnicode_FromString(suffix); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2107 | if (item == NULL) { |
| 2108 | Py_DECREF(list); |
| 2109 | return NULL; |
| 2110 | } |
| 2111 | if (PyList_Append(list, item) < 0) { |
| 2112 | Py_DECREF(list); |
| 2113 | Py_DECREF(item); |
| 2114 | return NULL; |
| 2115 | } |
| 2116 | Py_DECREF(item); |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 2117 | index += 1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2118 | } |
Brett Cannon | 2657df4 | 2012-05-04 15:20:40 -0400 | [diff] [blame] | 2119 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2120 | return list; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2121 | } |
| 2122 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2123 | /*[clinic input] |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2124 | _imp.init_frozen |
| 2125 | |
| 2126 | name: unicode |
| 2127 | / |
| 2128 | |
| 2129 | Initializes a frozen module. |
| 2130 | [clinic start generated code]*/ |
| 2131 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2132 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2133 | _imp_init_frozen_impl(PyObject *module, PyObject *name) |
| 2134 | /*[clinic end generated code: output=fc0511ed869fd69c input=13019adfc04f3fb3]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2135 | { |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 2136 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2137 | int ret; |
| 2138 | PyObject *m; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2139 | |
Victor Stinner | 53dc735 | 2011-03-20 01:50:21 +0100 | [diff] [blame] | 2140 | ret = PyImport_ImportFrozenModuleObject(name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2141 | if (ret < 0) |
| 2142 | return NULL; |
| 2143 | if (ret == 0) { |
Serhiy Storchaka | 228b12e | 2017-01-23 09:47:21 +0200 | [diff] [blame] | 2144 | Py_RETURN_NONE; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2145 | } |
Victor Stinner | 0a28f8d | 2019-06-19 02:54:39 +0200 | [diff] [blame] | 2146 | m = import_add_module(tstate, name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2147 | Py_XINCREF(m); |
| 2148 | return m; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2149 | } |
| 2150 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2151 | /*[clinic input] |
| 2152 | _imp.get_frozen_object |
| 2153 | |
| 2154 | name: unicode |
| 2155 | / |
| 2156 | |
| 2157 | Create a code object for a frozen module. |
| 2158 | [clinic start generated code]*/ |
| 2159 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2160 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2161 | _imp_get_frozen_object_impl(PyObject *module, PyObject *name) |
| 2162 | /*[clinic end generated code: output=2568cc5b7aa0da63 input=ed689bc05358fdbd]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2163 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2164 | return get_frozen_object(name); |
Guido van Rossum | 6ec1efb | 1995-08-04 04:08:57 +0000 | [diff] [blame] | 2165 | } |
| 2166 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2167 | /*[clinic input] |
| 2168 | _imp.is_frozen_package |
| 2169 | |
| 2170 | name: unicode |
| 2171 | / |
| 2172 | |
| 2173 | Returns True if the module name is of a frozen package. |
| 2174 | [clinic start generated code]*/ |
| 2175 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2176 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2177 | _imp_is_frozen_package_impl(PyObject *module, PyObject *name) |
| 2178 | /*[clinic end generated code: output=e70cbdb45784a1c9 input=81b6cdecd080fbb8]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2179 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2180 | return is_frozen_package(name); |
Brett Cannon | 8d11013 | 2009-03-15 02:20:16 +0000 | [diff] [blame] | 2181 | } |
| 2182 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2183 | /*[clinic input] |
| 2184 | _imp.is_builtin |
| 2185 | |
| 2186 | name: unicode |
| 2187 | / |
| 2188 | |
| 2189 | Returns True if the module name corresponds to a built-in module. |
| 2190 | [clinic start generated code]*/ |
| 2191 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 2192 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2193 | _imp_is_builtin_impl(PyObject *module, PyObject *name) |
| 2194 | /*[clinic end generated code: output=3bfd1162e2d3be82 input=86befdac021dd1c7]*/ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2195 | { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2196 | return PyLong_FromLong(is_builtin(name)); |
| 2197 | } |
| 2198 | |
| 2199 | /*[clinic input] |
| 2200 | _imp.is_frozen |
| 2201 | |
| 2202 | name: unicode |
| 2203 | / |
| 2204 | |
| 2205 | Returns True if the module name corresponds to a frozen module. |
| 2206 | [clinic start generated code]*/ |
| 2207 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2208 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2209 | _imp_is_frozen_impl(PyObject *module, PyObject *name) |
| 2210 | /*[clinic end generated code: output=01f408f5ec0f2577 input=7301dbca1897d66b]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2211 | { |
Benjamin Peterson | 6fba3db | 2013-03-18 23:13:31 -0700 | [diff] [blame] | 2212 | const struct _frozen *p; |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2213 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2214 | p = find_frozen(name); |
| 2215 | return PyBool_FromLong((long) (p == NULL ? 0 : p->size)); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2216 | } |
| 2217 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2218 | /* Common implementation for _imp.exec_dynamic and _imp.exec_builtin */ |
| 2219 | static int |
| 2220 | exec_builtin_or_dynamic(PyObject *mod) { |
| 2221 | PyModuleDef *def; |
| 2222 | void *state; |
| 2223 | |
| 2224 | if (!PyModule_Check(mod)) { |
| 2225 | return 0; |
| 2226 | } |
| 2227 | |
| 2228 | def = PyModule_GetDef(mod); |
| 2229 | if (def == NULL) { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2230 | return 0; |
| 2231 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 2232 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2233 | state = PyModule_GetState(mod); |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2234 | if (state) { |
| 2235 | /* Already initialized; skip reload */ |
| 2236 | return 0; |
| 2237 | } |
Brett Cannon | 52794db | 2016-09-07 17:00:43 -0700 | [diff] [blame] | 2238 | |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2239 | return PyModule_ExecDef(mod, def); |
| 2240 | } |
| 2241 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 2242 | #ifdef HAVE_DYNAMIC_LOADING |
| 2243 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2244 | /*[clinic input] |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2245 | _imp.create_dynamic |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2246 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2247 | spec: object |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2248 | file: object = NULL |
| 2249 | / |
| 2250 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2251 | Create an extension module. |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2252 | [clinic start generated code]*/ |
| 2253 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2254 | static PyObject * |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2255 | _imp_create_dynamic_impl(PyObject *module, PyObject *spec, PyObject *file) |
| 2256 | /*[clinic end generated code: output=83249b827a4fde77 input=c31b954f4cf4e09d]*/ |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2257 | { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2258 | PyObject *mod, *name, *path; |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2259 | FILE *fp; |
| 2260 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2261 | name = PyObject_GetAttrString(spec, "name"); |
| 2262 | if (name == NULL) { |
| 2263 | return NULL; |
| 2264 | } |
| 2265 | |
| 2266 | path = PyObject_GetAttrString(spec, "origin"); |
| 2267 | if (path == NULL) { |
| 2268 | Py_DECREF(name); |
| 2269 | return NULL; |
| 2270 | } |
| 2271 | |
| 2272 | mod = _PyImport_FindExtensionObject(name, path); |
Serhiy Storchaka | 8905fcc | 2018-12-11 08:38:03 +0200 | [diff] [blame] | 2273 | if (mod != NULL || PyErr_Occurred()) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2274 | Py_DECREF(name); |
| 2275 | Py_DECREF(path); |
Serhiy Storchaka | 8905fcc | 2018-12-11 08:38:03 +0200 | [diff] [blame] | 2276 | Py_XINCREF(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2277 | return mod; |
| 2278 | } |
| 2279 | |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2280 | if (file != NULL) { |
| 2281 | fp = _Py_fopen_obj(path, "r"); |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2282 | if (fp == NULL) { |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2283 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2284 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2285 | return NULL; |
Victor Stinner | e9ddbf6 | 2011-03-22 10:46:35 +0100 | [diff] [blame] | 2286 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2287 | } |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2288 | else |
| 2289 | fp = NULL; |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2290 | |
| 2291 | mod = _PyImport_LoadDynamicModuleWithSpec(spec, fp); |
| 2292 | |
| 2293 | Py_DECREF(name); |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2294 | Py_DECREF(path); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2295 | if (fp) |
| 2296 | fclose(fp); |
Victor Stinner | fefd70c | 2011-03-14 15:54:07 -0400 | [diff] [blame] | 2297 | return mod; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2298 | } |
| 2299 | |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2300 | /*[clinic input] |
| 2301 | _imp.exec_dynamic -> int |
| 2302 | |
| 2303 | mod: object |
| 2304 | / |
| 2305 | |
| 2306 | Initialize an extension module. |
| 2307 | [clinic start generated code]*/ |
| 2308 | |
| 2309 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2310 | _imp_exec_dynamic_impl(PyObject *module, PyObject *mod) |
| 2311 | /*[clinic end generated code: output=f5720ac7b465877d input=9fdbfcb250280d3a]*/ |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2312 | { |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2313 | return exec_builtin_or_dynamic(mod); |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2314 | } |
| 2315 | |
| 2316 | |
Guido van Rossum | 96a8fb7 | 1999-12-22 14:09:35 +0000 | [diff] [blame] | 2317 | #endif /* HAVE_DYNAMIC_LOADING */ |
| 2318 | |
Larry Hastings | 7726ac9 | 2014-01-31 22:03:12 -0800 | [diff] [blame] | 2319 | /*[clinic input] |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2320 | _imp.exec_builtin -> int |
| 2321 | |
| 2322 | mod: object |
| 2323 | / |
| 2324 | |
| 2325 | Initialize a built-in module. |
| 2326 | [clinic start generated code]*/ |
| 2327 | |
| 2328 | static int |
Serhiy Storchaka | 1a2b24f | 2016-07-07 17:35:15 +0300 | [diff] [blame] | 2329 | _imp_exec_builtin_impl(PyObject *module, PyObject *mod) |
| 2330 | /*[clinic end generated code: output=0262447b240c038e input=7beed5a2f12a60ca]*/ |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2331 | { |
| 2332 | return exec_builtin_or_dynamic(mod); |
| 2333 | } |
| 2334 | |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2335 | /*[clinic input] |
| 2336 | _imp.source_hash |
| 2337 | |
| 2338 | key: long |
| 2339 | source: Py_buffer |
| 2340 | [clinic start generated code]*/ |
| 2341 | |
| 2342 | static PyObject * |
| 2343 | _imp_source_hash_impl(PyObject *module, long key, Py_buffer *source) |
| 2344 | /*[clinic end generated code: output=edb292448cf399ea input=9aaad1e590089789]*/ |
| 2345 | { |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2346 | union { |
| 2347 | uint64_t x; |
| 2348 | char data[sizeof(uint64_t)]; |
| 2349 | } hash; |
| 2350 | hash.x = _Py_KeyedHash((uint64_t)key, source->buf, source->len); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2351 | #if !PY_LITTLE_ENDIAN |
| 2352 | // Force to little-endian. There really ought to be a succinct standard way |
| 2353 | // to do this. |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2354 | for (size_t i = 0; i < sizeof(hash.data)/2; i++) { |
| 2355 | char tmp = hash.data[i]; |
| 2356 | hash.data[i] = hash.data[sizeof(hash.data) - i - 1]; |
| 2357 | hash.data[sizeof(hash.data) - i - 1] = tmp; |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2358 | } |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2359 | #endif |
Benjamin Peterson | 8362077 | 2017-12-09 12:18:56 -0800 | [diff] [blame] | 2360 | return PyBytes_FromStringAndSize(hash.data, sizeof(hash.data)); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2361 | } |
| 2362 | |
Barry Warsaw | 28a691b | 2010-04-17 00:19:56 +0000 | [diff] [blame] | 2363 | |
Martin v. Löwis | 14f8b4c | 2002-06-13 20:33:02 +0000 | [diff] [blame] | 2364 | PyDoc_STRVAR(doc_imp, |
Brett Cannon | 6f44d66 | 2012-04-15 16:08:47 -0400 | [diff] [blame] | 2365 | "(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] | 2366 | |
Guido van Rossum | 79f25d9 | 1997-04-29 20:08:16 +0000 | [diff] [blame] | 2367 | static PyMethodDef imp_methods[] = { |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2368 | _IMP_EXTENSION_SUFFIXES_METHODDEF |
| 2369 | _IMP_LOCK_HELD_METHODDEF |
| 2370 | _IMP_ACQUIRE_LOCK_METHODDEF |
| 2371 | _IMP_RELEASE_LOCK_METHODDEF |
| 2372 | _IMP_GET_FROZEN_OBJECT_METHODDEF |
| 2373 | _IMP_IS_FROZEN_PACKAGE_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2374 | _IMP_CREATE_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2375 | _IMP_INIT_FROZEN_METHODDEF |
| 2376 | _IMP_IS_BUILTIN_METHODDEF |
| 2377 | _IMP_IS_FROZEN_METHODDEF |
Nick Coghlan | d5cacbb | 2015-05-23 22:24:10 +1000 | [diff] [blame] | 2378 | _IMP_CREATE_DYNAMIC_METHODDEF |
| 2379 | _IMP_EXEC_DYNAMIC_METHODDEF |
Larry Hastings | 1df0b35 | 2015-08-24 19:53:56 -0700 | [diff] [blame] | 2380 | _IMP_EXEC_BUILTIN_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2381 | _IMP__FIX_CO_FILENAME_METHODDEF |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2382 | _IMP_SOURCE_HASH_METHODDEF |
Brett Cannon | 4caa61d | 2014-01-09 19:03:32 -0500 | [diff] [blame] | 2383 | {NULL, NULL} /* sentinel */ |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2384 | }; |
| 2385 | |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 2386 | |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 2387 | static struct PyModuleDef impmodule = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2388 | PyModuleDef_HEAD_INIT, |
Brett Cannon | 6f44d66 | 2012-04-15 16:08:47 -0400 | [diff] [blame] | 2389 | "_imp", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2390 | doc_imp, |
| 2391 | 0, |
| 2392 | imp_methods, |
| 2393 | NULL, |
| 2394 | NULL, |
| 2395 | NULL, |
| 2396 | NULL |
Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 2397 | }; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2398 | |
Jason Tishler | 6bc06ec | 2003-09-04 11:59:50 +0000 | [diff] [blame] | 2399 | PyMODINIT_FUNC |
Benjamin Peterson | c65ef77 | 2018-01-29 11:33:57 -0800 | [diff] [blame] | 2400 | PyInit__imp(void) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2401 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2402 | PyObject *m, *d; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2403 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2404 | m = PyModule_Create(&impmodule); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2405 | if (m == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2406 | goto failure; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2407 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2408 | d = PyModule_GetDict(m); |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2409 | if (d == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2410 | goto failure; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2411 | } |
| 2412 | |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 2413 | const wchar_t *mode = _Py_GetConfig()->check_hash_pycs_mode; |
Victor Stinner | 410b85a | 2019-05-13 17:12:45 +0200 | [diff] [blame] | 2414 | PyObject *pyc_mode = PyUnicode_FromWideChar(mode, -1); |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 2415 | if (pyc_mode == NULL) { |
| 2416 | goto failure; |
| 2417 | } |
| 2418 | if (PyDict_SetItemString(d, "check_hash_based_pycs", pyc_mode) < 0) { |
| 2419 | Py_DECREF(pyc_mode); |
| 2420 | goto failure; |
| 2421 | } |
| 2422 | Py_DECREF(pyc_mode); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2423 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2424 | return m; |
Guido van Rossum | aee0bad | 1997-09-05 07:33:22 +0000 | [diff] [blame] | 2425 | failure: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2426 | Py_XDECREF(m); |
| 2427 | return NULL; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 2428 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2429 | |
| 2430 | |
Guido van Rossum | b18618d | 2000-05-03 23:44:39 +0000 | [diff] [blame] | 2431 | /* API for embedding applications that want to add their own entries |
| 2432 | to the table of built-in modules. This should normally be called |
| 2433 | *before* Py_Initialize(). When the table resize fails, -1 is |
| 2434 | returned and the existing table is unchanged. |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2435 | |
| 2436 | After a similar function by Just van Rossum. */ |
| 2437 | |
| 2438 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 2439 | PyImport_ExtendInittab(struct _inittab *newtab) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2440 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2441 | struct _inittab *p; |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2442 | size_t i, n; |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2443 | int res = 0; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2444 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2445 | /* Count the number of entries in both tables */ |
| 2446 | for (n = 0; newtab[n].name != NULL; n++) |
| 2447 | ; |
| 2448 | if (n == 0) |
| 2449 | return 0; /* Nothing to do */ |
| 2450 | for (i = 0; PyImport_Inittab[i].name != NULL; i++) |
| 2451 | ; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2452 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2453 | /* Force default raw memory allocator to get a known allocator to be able |
| 2454 | to release the memory in _PyImport_Fini2() */ |
| 2455 | PyMemAllocatorEx old_alloc; |
| 2456 | _PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2457 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2458 | /* Allocate new memory for the combined table */ |
Benjamin Peterson | 0c644fc | 2017-12-15 23:42:33 -0800 | [diff] [blame] | 2459 | p = NULL; |
| 2460 | if (i + n <= SIZE_MAX / sizeof(struct _inittab) - 1) { |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2461 | size_t size = sizeof(struct _inittab) * (i + n + 1); |
| 2462 | p = PyMem_RawRealloc(inittab_copy, size); |
| 2463 | } |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2464 | if (p == NULL) { |
| 2465 | res = -1; |
| 2466 | goto done; |
| 2467 | } |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2468 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2469 | /* Copy the tables into the new memory at the first call |
| 2470 | to PyImport_ExtendInittab(). */ |
| 2471 | if (inittab_copy != PyImport_Inittab) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2472 | memcpy(p, PyImport_Inittab, (i+1) * sizeof(struct _inittab)); |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2473 | } |
| 2474 | memcpy(p + i, newtab, (n + 1) * sizeof(struct _inittab)); |
| 2475 | PyImport_Inittab = inittab_copy = p; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2476 | |
Victor Stinner | 92a3c6f | 2017-12-06 18:12:59 +0100 | [diff] [blame] | 2477 | done: |
| 2478 | PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc); |
| 2479 | return res; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2480 | } |
| 2481 | |
| 2482 | /* Shorthand to add a single entry given a name and a function */ |
| 2483 | |
| 2484 | int |
Brett Cannon | a826f32 | 2009-04-02 03:41:46 +0000 | [diff] [blame] | 2485 | PyImport_AppendInittab(const char *name, PyObject* (*initfunc)(void)) |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2486 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2487 | struct _inittab newtab[2]; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2488 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2489 | memset(newtab, '\0', sizeof newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2490 | |
Serhiy Storchaka | 20b39b2 | 2014-09-28 11:27:24 +0300 | [diff] [blame] | 2491 | newtab[0].name = name; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2492 | newtab[0].initfunc = initfunc; |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2493 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2494 | return PyImport_ExtendInittab(newtab); |
Guido van Rossum | 09cae1f | 1998-05-14 02:32:54 +0000 | [diff] [blame] | 2495 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2496 | |
| 2497 | #ifdef __cplusplus |
| 2498 | } |
| 2499 | #endif |