Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1 | |
Eric Snow | c7ec998 | 2017-05-23 23:00:52 -0700 | [diff] [blame] | 2 | /* Top level execution of Python code (including in __main__) */ |
| 3 | |
| 4 | /* To help control the interfaces between the startup, execution and |
| 5 | * shutdown code, the phases are split across separate modules (boostrap, |
| 6 | * pythonrun, shutdown) |
| 7 | */ |
| 8 | |
| 9 | /* TODO: Cull includes following phase split */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 10 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 11 | #include "Python.h" |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 12 | |
Jeremy Hylton | 3e0055f | 2005-10-20 19:59:25 +0000 | [diff] [blame] | 13 | #include "Python-ast.h" |
Victor Stinner | 3bb183d | 2018-11-22 18:38:38 +0100 | [diff] [blame] | 14 | #undef Yield /* undefine macro conflicting with <winbase.h> */ |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 15 | |
Victor Stinner | e5014be | 2020-04-14 17:52:15 +0200 | [diff] [blame] | 16 | #include "pycore_interp.h" // PyInterpreterState.importlib |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 17 | #include "pycore_object.h" // _PyDebug_PrintTotalRefs() |
| 18 | #include "pycore_pyerrors.h" // _PyErr_Fetch |
| 19 | #include "pycore_pylifecycle.h" // _Py_UnhandledKeyboardInterrupt |
Victor Stinner | e5014be | 2020-04-14 17:52:15 +0200 | [diff] [blame] | 20 | #include "pycore_pystate.h" // _PyInterpreterState_GET() |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 21 | #include "pycore_sysmodule.h" // _PySys_Audit() |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 22 | |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 23 | #include "token.h" // INDENT |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 24 | #include "errcode.h" // E_EOF |
| 25 | #include "code.h" // PyCodeObject |
| 26 | #include "symtable.h" // PySymtable_BuildObject() |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 27 | #include "marshal.h" // PyMarshal_ReadLongFromFile() |
| 28 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 29 | #include "parser_interface.h" // PyParser_ASTFrom* |
Pablo Galindo | c5fc156 | 2020-04-22 23:29:27 +0100 | [diff] [blame] | 30 | |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 31 | #ifdef MS_WINDOWS |
| 32 | # include "malloc.h" // alloca() |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 33 | #endif |
Guido van Rossum | a9e7dc1 | 1992-10-18 18:53:57 +0000 | [diff] [blame] | 34 | |
Benjamin Peterson | 80a50ac | 2009-01-02 21:24:04 +0000 | [diff] [blame] | 35 | #ifdef MS_WINDOWS |
Victor Stinner | 4f98f46 | 2020-04-15 04:01:58 +0200 | [diff] [blame] | 36 | # undef BYTE |
| 37 | # include "windows.h" |
Benjamin Peterson | 80a50ac | 2009-01-02 21:24:04 +0000 | [diff] [blame] | 38 | #endif |
Martin v. Löwis | 5c88d81 | 2009-01-02 20:47:48 +0000 | [diff] [blame] | 39 | |
Guido van Rossum | a44823b | 1995-03-14 15:01:17 +0000 | [diff] [blame] | 40 | |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 41 | _Py_IDENTIFIER(builtins); |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 42 | _Py_IDENTIFIER(excepthook); |
Victor Stinner | 3f36a57 | 2013-11-12 21:39:02 +0100 | [diff] [blame] | 43 | _Py_IDENTIFIER(flush); |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 44 | _Py_IDENTIFIER(last_traceback); |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 45 | _Py_IDENTIFIER(last_type); |
| 46 | _Py_IDENTIFIER(last_value); |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 47 | _Py_IDENTIFIER(ps1); |
| 48 | _Py_IDENTIFIER(ps2); |
| 49 | _Py_IDENTIFIER(stdin); |
| 50 | _Py_IDENTIFIER(stdout); |
| 51 | _Py_IDENTIFIER(stderr); |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 52 | _Py_static_string(PyId_string, "<string>"); |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 53 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 54 | #ifdef __cplusplus |
| 55 | extern "C" { |
Neal Norwitz | 4281cef | 2006-03-04 19:58:13 +0000 | [diff] [blame] | 56 | #endif |
| 57 | |
Guido van Rossum | b73cc04 | 1993-11-01 16:28:59 +0000 | [diff] [blame] | 58 | /* Forward */ |
Amaury Forgeot d'Arc | 7fedbe5 | 2008-04-10 21:03:09 +0000 | [diff] [blame] | 59 | static void flush_io(void); |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 60 | static PyObject *run_mod(mod_ty, PyObject *, PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 61 | PyCompilerFlags *, PyArena *); |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 62 | static PyObject *run_pyc_file(FILE *, const char *, PyObject *, PyObject *, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 63 | PyCompilerFlags *); |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 64 | static int PyRun_InteractiveOneObjectEx(FILE *, PyObject *, PyCompilerFlags *); |
Guido van Rossum | ce3a72a | 2007-10-19 23:16:50 +0000 | [diff] [blame] | 65 | |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 66 | /* Parse input from a file and execute it */ |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 67 | int |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 68 | PyRun_AnyFileExFlags(FILE *fp, const char *filename, int closeit, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 69 | PyCompilerFlags *flags) |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 70 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 71 | if (filename == NULL) |
| 72 | filename = "???"; |
| 73 | if (Py_FdIsInteractive(fp, filename)) { |
| 74 | int err = PyRun_InteractiveLoopFlags(fp, filename, flags); |
| 75 | if (closeit) |
| 76 | fclose(fp); |
| 77 | return err; |
| 78 | } |
| 79 | else |
| 80 | return PyRun_SimpleFileExFlags(fp, filename, closeit, flags); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | int |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 84 | PyRun_InteractiveLoopFlags(FILE *fp, const char *filename_str, PyCompilerFlags *flags) |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 85 | { |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 86 | PyObject *filename, *v; |
| 87 | int ret, err; |
Victor Stinner | 37d66d7 | 2019-06-13 02:16:41 +0200 | [diff] [blame] | 88 | PyCompilerFlags local_flags = _PyCompilerFlags_INIT; |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 89 | int nomem_count = 0; |
Victor Stinner | 25420fe | 2017-11-20 18:12:22 -0800 | [diff] [blame] | 90 | #ifdef Py_REF_DEBUG |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 91 | int show_ref_count = _Py_GetConfig()->show_ref_count; |
Victor Stinner | 25420fe | 2017-11-20 18:12:22 -0800 | [diff] [blame] | 92 | #endif |
Jeremy Hylton | 9f324e9 | 2001-03-01 22:59:14 +0000 | [diff] [blame] | 93 | |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 94 | filename = PyUnicode_DecodeFSDefault(filename_str); |
| 95 | if (filename == NULL) { |
| 96 | PyErr_Print(); |
| 97 | return -1; |
| 98 | } |
| 99 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 100 | if (flags == NULL) { |
| 101 | flags = &local_flags; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 102 | } |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 103 | v = _PySys_GetObjectId(&PyId_ps1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 104 | if (v == NULL) { |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 105 | _PySys_SetObjectId(&PyId_ps1, v = PyUnicode_FromString(">>> ")); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 106 | Py_XDECREF(v); |
| 107 | } |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 108 | v = _PySys_GetObjectId(&PyId_ps2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 109 | if (v == NULL) { |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 110 | _PySys_SetObjectId(&PyId_ps2, v = PyUnicode_FromString("... ")); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 111 | Py_XDECREF(v); |
| 112 | } |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 113 | err = 0; |
| 114 | do { |
| 115 | ret = PyRun_InteractiveOneObjectEx(fp, filename, flags); |
| 116 | if (ret == -1 && PyErr_Occurred()) { |
| 117 | /* Prevent an endless loop after multiple consecutive MemoryErrors |
| 118 | * while still allowing an interactive command to fail with a |
| 119 | * MemoryError. */ |
| 120 | if (PyErr_ExceptionMatches(PyExc_MemoryError)) { |
| 121 | if (++nomem_count > 16) { |
| 122 | PyErr_Clear(); |
| 123 | err = -1; |
| 124 | break; |
| 125 | } |
| 126 | } else { |
| 127 | nomem_count = 0; |
| 128 | } |
| 129 | PyErr_Print(); |
| 130 | flush_io(); |
| 131 | } else { |
| 132 | nomem_count = 0; |
| 133 | } |
Eric Snow | dae0276 | 2017-09-14 00:35:58 -0700 | [diff] [blame] | 134 | #ifdef Py_REF_DEBUG |
Victor Stinner | 25420fe | 2017-11-20 18:12:22 -0800 | [diff] [blame] | 135 | if (show_ref_count) { |
Eric Snow | dae0276 | 2017-09-14 00:35:58 -0700 | [diff] [blame] | 136 | _PyDebug_PrintTotalRefs(); |
Victor Stinner | 25420fe | 2017-11-20 18:12:22 -0800 | [diff] [blame] | 137 | } |
Eric Snow | dae0276 | 2017-09-14 00:35:58 -0700 | [diff] [blame] | 138 | #endif |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 139 | } while (ret != E_EOF); |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 140 | Py_DECREF(filename); |
| 141 | return err; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 142 | } |
| 143 | |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 144 | /* A PyRun_InteractiveOneObject() auxiliary function that does not print the |
| 145 | * error on failure. */ |
| 146 | static int |
| 147 | PyRun_InteractiveOneObjectEx(FILE *fp, PyObject *filename, |
| 148 | PyCompilerFlags *flags) |
Jeremy Hylton | 9f324e9 | 2001-03-01 22:59:14 +0000 | [diff] [blame] | 149 | { |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 150 | PyObject *m, *d, *v, *w, *oenc = NULL, *mod_name; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 151 | mod_ty mod; |
| 152 | PyArena *arena; |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 153 | const char *ps1 = "", *ps2 = "", *enc = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 154 | int errcode = 0; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 155 | _Py_IDENTIFIER(encoding); |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 156 | _Py_IDENTIFIER(__main__); |
| 157 | |
| 158 | mod_name = _PyUnicode_FromId(&PyId___main__); /* borrowed */ |
| 159 | if (mod_name == NULL) { |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 160 | return -1; |
| 161 | } |
Tim Peters | fe2127d | 2001-07-16 05:37:24 +0000 | [diff] [blame] | 162 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 163 | if (fp == stdin) { |
Benjamin Peterson | fe1b22a | 2013-04-29 10:23:08 -0400 | [diff] [blame] | 164 | /* Fetch encoding from sys.stdin if possible. */ |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 165 | v = _PySys_GetObjectId(&PyId_stdin); |
Benjamin Peterson | fe1b22a | 2013-04-29 10:23:08 -0400 | [diff] [blame] | 166 | if (v && v != Py_None) { |
| 167 | oenc = _PyObject_GetAttrId(v, &PyId_encoding); |
| 168 | if (oenc) |
Serhiy Storchaka | 0651583 | 2016-11-20 09:13:07 +0200 | [diff] [blame] | 169 | enc = PyUnicode_AsUTF8(oenc); |
Benjamin Peterson | fe1b22a | 2013-04-29 10:23:08 -0400 | [diff] [blame] | 170 | if (!enc) |
| 171 | PyErr_Clear(); |
| 172 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 173 | } |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 174 | v = _PySys_GetObjectId(&PyId_ps1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 175 | if (v != NULL) { |
| 176 | v = PyObject_Str(v); |
| 177 | if (v == NULL) |
| 178 | PyErr_Clear(); |
Victor Stinner | 386fe71 | 2010-05-19 00:34:15 +0000 | [diff] [blame] | 179 | else if (PyUnicode_Check(v)) { |
Serhiy Storchaka | 0651583 | 2016-11-20 09:13:07 +0200 | [diff] [blame] | 180 | ps1 = PyUnicode_AsUTF8(v); |
Victor Stinner | 386fe71 | 2010-05-19 00:34:15 +0000 | [diff] [blame] | 181 | if (ps1 == NULL) { |
| 182 | PyErr_Clear(); |
| 183 | ps1 = ""; |
| 184 | } |
| 185 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 186 | } |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 187 | w = _PySys_GetObjectId(&PyId_ps2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 188 | if (w != NULL) { |
| 189 | w = PyObject_Str(w); |
| 190 | if (w == NULL) |
| 191 | PyErr_Clear(); |
Victor Stinner | 386fe71 | 2010-05-19 00:34:15 +0000 | [diff] [blame] | 192 | else if (PyUnicode_Check(w)) { |
Serhiy Storchaka | 0651583 | 2016-11-20 09:13:07 +0200 | [diff] [blame] | 193 | ps2 = PyUnicode_AsUTF8(w); |
Victor Stinner | 386fe71 | 2010-05-19 00:34:15 +0000 | [diff] [blame] | 194 | if (ps2 == NULL) { |
| 195 | PyErr_Clear(); |
| 196 | ps2 = ""; |
| 197 | } |
| 198 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 199 | } |
| 200 | arena = PyArena_New(); |
| 201 | if (arena == NULL) { |
| 202 | Py_XDECREF(v); |
| 203 | Py_XDECREF(w); |
| 204 | Py_XDECREF(oenc); |
| 205 | return -1; |
| 206 | } |
Pablo Galindo | c5fc156 | 2020-04-22 23:29:27 +0100 | [diff] [blame] | 207 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 208 | mod = PyParser_ASTFromFileObject(fp, filename, enc, Py_single_input, |
| 209 | ps1, ps2, flags, &errcode, arena); |
Pablo Galindo | c5fc156 | 2020-04-22 23:29:27 +0100 | [diff] [blame] | 210 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 211 | Py_XDECREF(v); |
| 212 | Py_XDECREF(w); |
| 213 | Py_XDECREF(oenc); |
| 214 | if (mod == NULL) { |
| 215 | PyArena_Free(arena); |
| 216 | if (errcode == E_EOF) { |
| 217 | PyErr_Clear(); |
| 218 | return E_EOF; |
| 219 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 220 | return -1; |
| 221 | } |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 222 | m = PyImport_AddModuleObject(mod_name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 223 | if (m == NULL) { |
| 224 | PyArena_Free(arena); |
| 225 | return -1; |
| 226 | } |
| 227 | d = PyModule_GetDict(m); |
| 228 | v = run_mod(mod, filename, d, d, flags, arena); |
| 229 | PyArena_Free(arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 230 | if (v == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 231 | return -1; |
| 232 | } |
| 233 | Py_DECREF(v); |
Antoine Pitrou | 9845c7e | 2014-05-11 13:42:17 +0200 | [diff] [blame] | 234 | flush_io(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 235 | return 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 236 | } |
| 237 | |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 238 | int |
xdegaye | e0582a3 | 2017-11-12 16:50:48 +0100 | [diff] [blame] | 239 | PyRun_InteractiveOneObject(FILE *fp, PyObject *filename, PyCompilerFlags *flags) |
| 240 | { |
| 241 | int res; |
| 242 | |
| 243 | res = PyRun_InteractiveOneObjectEx(fp, filename, flags); |
| 244 | if (res == -1) { |
| 245 | PyErr_Print(); |
| 246 | flush_io(); |
| 247 | } |
| 248 | return res; |
| 249 | } |
| 250 | |
| 251 | int |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 252 | PyRun_InteractiveOneFlags(FILE *fp, const char *filename_str, PyCompilerFlags *flags) |
| 253 | { |
| 254 | PyObject *filename; |
| 255 | int res; |
| 256 | |
| 257 | filename = PyUnicode_DecodeFSDefault(filename_str); |
| 258 | if (filename == NULL) { |
| 259 | PyErr_Print(); |
| 260 | return -1; |
| 261 | } |
| 262 | res = PyRun_InteractiveOneObject(fp, filename, flags); |
| 263 | Py_DECREF(filename); |
| 264 | return res; |
| 265 | } |
| 266 | |
| 267 | |
Martin v. Löwis | be4c0f5 | 2001-01-04 20:30:56 +0000 | [diff] [blame] | 268 | /* Check whether a file maybe a pyc file: Look at the extension, |
| 269 | the file type, and, if we may close it, at the first few bytes. */ |
| 270 | |
| 271 | static int |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 272 | maybe_pyc_file(FILE *fp, const char* filename, const char* ext, int closeit) |
Martin v. Löwis | be4c0f5 | 2001-01-04 20:30:56 +0000 | [diff] [blame] | 273 | { |
Brett Cannon | f299abd | 2015-04-13 14:21:02 -0400 | [diff] [blame] | 274 | if (strcmp(ext, ".pyc") == 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 275 | return 1; |
Martin v. Löwis | be4c0f5 | 2001-01-04 20:30:56 +0000 | [diff] [blame] | 276 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 277 | /* Only look into the file if we are allowed to close it, since |
| 278 | it then should also be seekable. */ |
| 279 | if (closeit) { |
| 280 | /* Read only two bytes of the magic. If the file was opened in |
| 281 | text mode, the bytes 3 and 4 of the magic (\r\n) might not |
| 282 | be read as they are on disk. */ |
| 283 | unsigned int halfmagic = PyImport_GetMagicNumber() & 0xFFFF; |
| 284 | unsigned char buf[2]; |
| 285 | /* Mess: In case of -x, the stream is NOT at its start now, |
| 286 | and ungetc() was used to push back the first newline, |
| 287 | which makes the current stream position formally undefined, |
| 288 | and a x-platform nightmare. |
| 289 | Unfortunately, we have no direct way to know whether -x |
| 290 | was specified. So we use a terrible hack: if the current |
| 291 | stream position is not 0, we assume -x was specified, and |
| 292 | give up. Bug 132850 on SourceForge spells out the |
| 293 | hopelessness of trying anything else (fseek and ftell |
| 294 | don't work predictably x-platform for text-mode files). |
| 295 | */ |
| 296 | int ispyc = 0; |
| 297 | if (ftell(fp) == 0) { |
| 298 | if (fread(buf, 1, 2, fp) == 2 && |
| 299 | ((unsigned int)buf[1]<<8 | buf[0]) == halfmagic) |
| 300 | ispyc = 1; |
| 301 | rewind(fp); |
| 302 | } |
| 303 | return ispyc; |
| 304 | } |
| 305 | return 0; |
Tim Peters | d08e382 | 2003-04-17 15:24:21 +0000 | [diff] [blame] | 306 | } |
Martin v. Löwis | be4c0f5 | 2001-01-04 20:30:56 +0000 | [diff] [blame] | 307 | |
Antoine Pitrou | 32d483c | 2013-07-30 21:01:23 +0200 | [diff] [blame] | 308 | static int |
| 309 | set_main_loader(PyObject *d, const char *filename, const char *loader_name) |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 310 | { |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 311 | PyObject *filename_obj, *bootstrap, *loader_type = NULL, *loader; |
Nick Coghlan | b7a5894 | 2012-07-15 23:21:08 +1000 | [diff] [blame] | 312 | int result = 0; |
Andrew Svetlov | 90c0eb2 | 2012-11-01 14:51:14 +0200 | [diff] [blame] | 313 | |
| 314 | filename_obj = PyUnicode_DecodeFSDefault(filename); |
| 315 | if (filename_obj == NULL) |
| 316 | return -1; |
Victor Stinner | 81a7be3 | 2020-04-14 15:14:01 +0200 | [diff] [blame] | 317 | PyInterpreterState *interp = _PyInterpreterState_GET(); |
Eric Snow | 32439d6 | 2015-05-02 19:15:18 -0600 | [diff] [blame] | 318 | bootstrap = PyObject_GetAttrString(interp->importlib, |
| 319 | "_bootstrap_external"); |
| 320 | if (bootstrap != NULL) { |
| 321 | loader_type = PyObject_GetAttrString(bootstrap, loader_name); |
| 322 | Py_DECREF(bootstrap); |
| 323 | } |
Nick Coghlan | 3f94cbf | 2012-07-15 19:10:39 +1000 | [diff] [blame] | 324 | if (loader_type == NULL) { |
Andrew Svetlov | 90c0eb2 | 2012-11-01 14:51:14 +0200 | [diff] [blame] | 325 | Py_DECREF(filename_obj); |
Nick Coghlan | 3f94cbf | 2012-07-15 19:10:39 +1000 | [diff] [blame] | 326 | return -1; |
| 327 | } |
Andrew Svetlov | 90c0eb2 | 2012-11-01 14:51:14 +0200 | [diff] [blame] | 328 | loader = PyObject_CallFunction(loader_type, "sN", "__main__", filename_obj); |
Nick Coghlan | b7a5894 | 2012-07-15 23:21:08 +1000 | [diff] [blame] | 329 | Py_DECREF(loader_type); |
| 330 | if (loader == NULL) { |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 331 | return -1; |
| 332 | } |
Nick Coghlan | b7a5894 | 2012-07-15 23:21:08 +1000 | [diff] [blame] | 333 | if (PyDict_SetItemString(d, "__loader__", loader) < 0) { |
| 334 | result = -1; |
| 335 | } |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 336 | Py_DECREF(loader); |
Nick Coghlan | b7a5894 | 2012-07-15 23:21:08 +1000 | [diff] [blame] | 337 | return result; |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | int |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 341 | PyRun_SimpleFileExFlags(FILE *fp, const char *filename, int closeit, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 342 | PyCompilerFlags *flags) |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 343 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 344 | PyObject *m, *d, *v; |
| 345 | const char *ext; |
Hynek Schlawack | 5c6b3e2 | 2012-11-07 09:02:24 +0100 | [diff] [blame] | 346 | int set_file_name = 0, ret = -1; |
Victor Stinner | 0fcab4a | 2011-01-04 12:59:15 +0000 | [diff] [blame] | 347 | size_t len; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 348 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 349 | m = PyImport_AddModule("__main__"); |
| 350 | if (m == NULL) |
| 351 | return -1; |
Hynek Schlawack | 5c6b3e2 | 2012-11-07 09:02:24 +0100 | [diff] [blame] | 352 | Py_INCREF(m); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 353 | d = PyModule_GetDict(m); |
| 354 | if (PyDict_GetItemString(d, "__file__") == NULL) { |
| 355 | PyObject *f; |
Victor Stinner | 4c7c8c3 | 2010-10-16 13:14:10 +0000 | [diff] [blame] | 356 | f = PyUnicode_DecodeFSDefault(filename); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 357 | if (f == NULL) |
Hynek Schlawack | 5c6b3e2 | 2012-11-07 09:02:24 +0100 | [diff] [blame] | 358 | goto done; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 359 | if (PyDict_SetItemString(d, "__file__", f) < 0) { |
| 360 | Py_DECREF(f); |
Hynek Schlawack | 5c6b3e2 | 2012-11-07 09:02:24 +0100 | [diff] [blame] | 361 | goto done; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 362 | } |
Barry Warsaw | 916048d | 2011-09-20 14:45:44 -0400 | [diff] [blame] | 363 | if (PyDict_SetItemString(d, "__cached__", Py_None) < 0) { |
| 364 | Py_DECREF(f); |
Hynek Schlawack | 5c6b3e2 | 2012-11-07 09:02:24 +0100 | [diff] [blame] | 365 | goto done; |
Barry Warsaw | 916048d | 2011-09-20 14:45:44 -0400 | [diff] [blame] | 366 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 367 | set_file_name = 1; |
| 368 | Py_DECREF(f); |
| 369 | } |
| 370 | len = strlen(filename); |
| 371 | ext = filename + len - (len > 4 ? 4 : 0); |
| 372 | if (maybe_pyc_file(fp, filename, ext, closeit)) { |
Christian Heimes | 04ac4c1 | 2012-09-11 15:47:28 +0200 | [diff] [blame] | 373 | FILE *pyc_fp; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 374 | /* Try to run a pyc file. First, re-open in binary */ |
| 375 | if (closeit) |
| 376 | fclose(fp); |
Victor Stinner | daf4555 | 2013-08-28 00:53:59 +0200 | [diff] [blame] | 377 | if ((pyc_fp = _Py_fopen(filename, "rb")) == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 378 | fprintf(stderr, "python: Can't reopen .pyc file\n"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 379 | goto done; |
| 380 | } |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 381 | |
| 382 | if (set_main_loader(d, filename, "SourcelessFileLoader") < 0) { |
| 383 | fprintf(stderr, "python: failed to set __main__.__loader__\n"); |
| 384 | ret = -1; |
Christian Heimes | 04ac4c1 | 2012-09-11 15:47:28 +0200 | [diff] [blame] | 385 | fclose(pyc_fp); |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 386 | goto done; |
| 387 | } |
Christian Heimes | 04ac4c1 | 2012-09-11 15:47:28 +0200 | [diff] [blame] | 388 | v = run_pyc_file(pyc_fp, filename, d, d, flags); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 389 | } else { |
Nick Coghlan | 85e729e | 2012-07-15 18:09:52 +1000 | [diff] [blame] | 390 | /* When running from stdin, leave __main__.__loader__ alone */ |
| 391 | if (strcmp(filename, "<stdin>") != 0 && |
| 392 | set_main_loader(d, filename, "SourceFileLoader") < 0) { |
| 393 | fprintf(stderr, "python: failed to set __main__.__loader__\n"); |
| 394 | ret = -1; |
| 395 | goto done; |
| 396 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 397 | v = PyRun_FileExFlags(fp, filename, Py_file_input, d, d, |
| 398 | closeit, flags); |
| 399 | } |
| 400 | flush_io(); |
| 401 | if (v == NULL) { |
Zackery Spytz | d8cba5d | 2018-07-03 13:47:22 -0600 | [diff] [blame] | 402 | Py_CLEAR(m); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 403 | PyErr_Print(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 404 | goto done; |
| 405 | } |
| 406 | Py_DECREF(v); |
| 407 | ret = 0; |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 408 | done: |
INADA Naoki | 82daa60 | 2018-11-29 20:01:27 +0900 | [diff] [blame] | 409 | if (set_file_name) { |
| 410 | if (PyDict_DelItemString(d, "__file__")) { |
| 411 | PyErr_Clear(); |
| 412 | } |
| 413 | if (PyDict_DelItemString(d, "__cached__")) { |
| 414 | PyErr_Clear(); |
| 415 | } |
| 416 | } |
Zackery Spytz | d8cba5d | 2018-07-03 13:47:22 -0600 | [diff] [blame] | 417 | Py_XDECREF(m); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 418 | return ret; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | int |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 422 | PyRun_SimpleStringFlags(const char *command, PyCompilerFlags *flags) |
Guido van Rossum | 393661d | 2001-08-31 17:40:15 +0000 | [diff] [blame] | 423 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 424 | PyObject *m, *d, *v; |
| 425 | m = PyImport_AddModule("__main__"); |
| 426 | if (m == NULL) |
| 427 | return -1; |
| 428 | d = PyModule_GetDict(m); |
| 429 | v = PyRun_StringFlags(command, Py_file_input, d, d, flags); |
| 430 | if (v == NULL) { |
| 431 | PyErr_Print(); |
| 432 | return -1; |
| 433 | } |
| 434 | Py_DECREF(v); |
| 435 | return 0; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 436 | } |
| 437 | |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 438 | static int |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 439 | parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename, |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 440 | Py_ssize_t *lineno, Py_ssize_t *offset, PyObject **text) |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 441 | { |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 442 | Py_ssize_t hold; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 443 | PyObject *v; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 444 | _Py_IDENTIFIER(msg); |
| 445 | _Py_IDENTIFIER(filename); |
| 446 | _Py_IDENTIFIER(lineno); |
| 447 | _Py_IDENTIFIER(offset); |
| 448 | _Py_IDENTIFIER(text); |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 449 | |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 450 | *message = NULL; |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 451 | *filename = NULL; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 452 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 453 | /* new style errors. `err' is an instance */ |
Benjamin Peterson | 0a9a636 | 2012-04-03 00:35:36 -0400 | [diff] [blame] | 454 | *message = _PyObject_GetAttrId(err, &PyId_msg); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 455 | if (!*message) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 456 | goto finally; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 457 | |
Benjamin Peterson | 0a9a636 | 2012-04-03 00:35:36 -0400 | [diff] [blame] | 458 | v = _PyObject_GetAttrId(err, &PyId_filename); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 459 | if (!v) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 460 | goto finally; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 461 | if (v == Py_None) { |
| 462 | Py_DECREF(v); |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 463 | *filename = _PyUnicode_FromId(&PyId_string); |
| 464 | if (*filename == NULL) |
| 465 | goto finally; |
| 466 | Py_INCREF(*filename); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 467 | } |
| 468 | else { |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 469 | *filename = v; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 470 | } |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 471 | |
Benjamin Peterson | 0a9a636 | 2012-04-03 00:35:36 -0400 | [diff] [blame] | 472 | v = _PyObject_GetAttrId(err, &PyId_lineno); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 473 | if (!v) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 474 | goto finally; |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 475 | hold = PyLong_AsSsize_t(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 476 | Py_DECREF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 477 | if (hold < 0 && PyErr_Occurred()) |
| 478 | goto finally; |
Serhiy Storchaka | 56f6e76 | 2015-09-06 21:25:30 +0300 | [diff] [blame] | 479 | *lineno = hold; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 480 | |
Benjamin Peterson | 0a9a636 | 2012-04-03 00:35:36 -0400 | [diff] [blame] | 481 | v = _PyObject_GetAttrId(err, &PyId_offset); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 482 | if (!v) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 483 | goto finally; |
| 484 | if (v == Py_None) { |
| 485 | *offset = -1; |
| 486 | Py_DECREF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 487 | } else { |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 488 | hold = PyLong_AsSsize_t(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 489 | Py_DECREF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 490 | if (hold < 0 && PyErr_Occurred()) |
| 491 | goto finally; |
Serhiy Storchaka | 56f6e76 | 2015-09-06 21:25:30 +0300 | [diff] [blame] | 492 | *offset = hold; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 493 | } |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 494 | |
Benjamin Peterson | 0a9a636 | 2012-04-03 00:35:36 -0400 | [diff] [blame] | 495 | v = _PyObject_GetAttrId(err, &PyId_text); |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 496 | if (!v) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 497 | goto finally; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 498 | if (v == Py_None) { |
| 499 | Py_DECREF(v); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 500 | *text = NULL; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 501 | } |
| 502 | else { |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 503 | *text = v; |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 504 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 505 | return 1; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 506 | |
| 507 | finally: |
Benjamin Peterson | 80d5042 | 2012-04-03 00:30:38 -0400 | [diff] [blame] | 508 | Py_XDECREF(*message); |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 509 | Py_XDECREF(*filename); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 510 | return 0; |
Barry Warsaw | 035574d | 1997-08-29 22:07:17 +0000 | [diff] [blame] | 511 | } |
| 512 | |
Jeremy Hylton | 9f1b993 | 2001-02-28 07:07:43 +0000 | [diff] [blame] | 513 | static void |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 514 | print_error_text(PyObject *f, Py_ssize_t offset, PyObject *text_obj) |
Jeremy Hylton | 9f1b993 | 2001-02-28 07:07:43 +0000 | [diff] [blame] | 515 | { |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 516 | /* Convert text to a char pointer; return if error */ |
| 517 | const char *text = PyUnicode_AsUTF8(text_obj); |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 518 | if (text == NULL) |
| 519 | return; |
| 520 | |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 521 | /* Convert offset from 1-based to 0-based */ |
| 522 | offset--; |
| 523 | |
| 524 | /* Strip leading whitespace from text, adjusting offset as we go */ |
| 525 | while (*text == ' ' || *text == '\t' || *text == '\f') { |
| 526 | text++; |
| 527 | offset--; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 528 | } |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 529 | |
| 530 | /* Calculate text length excluding trailing newline */ |
| 531 | Py_ssize_t len = strlen(text); |
| 532 | if (len > 0 && text[len-1] == '\n') { |
| 533 | len--; |
| 534 | } |
| 535 | |
| 536 | /* Clip offset to at most len */ |
| 537 | if (offset > len) { |
| 538 | offset = len; |
| 539 | } |
| 540 | |
| 541 | /* Skip past newlines embedded in text */ |
| 542 | for (;;) { |
| 543 | const char *nl = strchr(text, '\n'); |
| 544 | if (nl == NULL) { |
| 545 | break; |
| 546 | } |
| 547 | Py_ssize_t inl = nl - text; |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 548 | if (inl >= offset) { |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 549 | break; |
| 550 | } |
| 551 | inl += 1; |
| 552 | text += inl; |
| 553 | len -= inl; |
| 554 | offset -= (int)inl; |
| 555 | } |
| 556 | |
| 557 | /* Print text */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 558 | PyFile_WriteString(" ", f); |
| 559 | PyFile_WriteString(text, f); |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 560 | |
| 561 | /* Make sure there's a newline at the end */ |
| 562 | if (text[len] != '\n') { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 563 | PyFile_WriteString("\n", f); |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 564 | } |
| 565 | |
| 566 | /* Don't print caret if it points to the left of the text */ |
| 567 | if (offset < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 568 | return; |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 569 | |
| 570 | /* Write caret line */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 571 | PyFile_WriteString(" ", f); |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 572 | while (--offset >= 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 573 | PyFile_WriteString(" ", f); |
Guido van Rossum | 15bc9ab | 2020-05-14 19:22:48 -0700 | [diff] [blame] | 574 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 575 | PyFile_WriteString("^\n", f); |
Jeremy Hylton | 9f1b993 | 2001-02-28 07:07:43 +0000 | [diff] [blame] | 576 | } |
| 577 | |
Tim Peters | cf615b5 | 2003-04-19 18:47:02 +0000 | [diff] [blame] | 578 | |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 579 | int |
| 580 | _Py_HandleSystemExit(int *exitcode_p) |
| 581 | { |
Victor Stinner | da7933e | 2020-04-13 03:04:28 +0200 | [diff] [blame] | 582 | int inspect = _Py_GetConfig()->inspect; |
Victor Stinner | c96be81 | 2019-05-14 17:34:56 +0200 | [diff] [blame] | 583 | if (inspect) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 584 | /* Don't exit if -i flag was given. This flag is set to 0 |
| 585 | * when entering interactive mode for inspecting. */ |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 586 | return 0; |
Victor Stinner | c96be81 | 2019-05-14 17:34:56 +0200 | [diff] [blame] | 587 | } |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 588 | |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 589 | if (!PyErr_ExceptionMatches(PyExc_SystemExit)) { |
| 590 | return 0; |
| 591 | } |
| 592 | |
| 593 | PyObject *exception, *value, *tb; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 594 | PyErr_Fetch(&exception, &value, &tb); |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 595 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 596 | fflush(stdout); |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 597 | |
| 598 | int exitcode = 0; |
| 599 | if (value == NULL || value == Py_None) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 600 | goto done; |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 601 | } |
| 602 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 603 | if (PyExceptionInstance_Check(value)) { |
| 604 | /* The error code should be in the `code' attribute. */ |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 605 | _Py_IDENTIFIER(code); |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 606 | PyObject *code = _PyObject_GetAttrId(value, &PyId_code); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 607 | if (code) { |
| 608 | Py_DECREF(value); |
| 609 | value = code; |
| 610 | if (value == Py_None) |
| 611 | goto done; |
| 612 | } |
| 613 | /* If we failed to dig out the 'code' attribute, |
| 614 | just let the else clause below print the error. */ |
| 615 | } |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 616 | |
| 617 | if (PyLong_Check(value)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 618 | exitcode = (int)PyLong_AsLong(value); |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 619 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 620 | else { |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 621 | PyObject *sys_stderr = _PySys_GetObjectId(&PyId_stderr); |
Nick Coghlan | d979e43 | 2014-02-09 10:43:21 +1000 | [diff] [blame] | 622 | /* We clear the exception here to avoid triggering the assertion |
| 623 | * in PyObject_Str that ensures it won't silently lose exception |
| 624 | * details. |
| 625 | */ |
| 626 | PyErr_Clear(); |
Victor Stinner | 7126dbc | 2010-05-21 23:45:42 +0000 | [diff] [blame] | 627 | if (sys_stderr != NULL && sys_stderr != Py_None) { |
| 628 | PyFile_WriteObject(value, sys_stderr, Py_PRINT_RAW); |
| 629 | } else { |
| 630 | PyObject_Print(value, stderr, Py_PRINT_RAW); |
| 631 | fflush(stderr); |
| 632 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 633 | PySys_WriteStderr("\n"); |
| 634 | exitcode = 1; |
| 635 | } |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 636 | |
Tim Peters | cf615b5 | 2003-04-19 18:47:02 +0000 | [diff] [blame] | 637 | done: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 638 | /* Restore and clear the exception info, in order to properly decref |
| 639 | * the exception, value, and traceback. If we just exit instead, |
| 640 | * these leak, which confuses PYTHONDUMPREFS output, and may prevent |
| 641 | * some finalizers from running. |
| 642 | */ |
| 643 | PyErr_Restore(exception, value, tb); |
| 644 | PyErr_Clear(); |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 645 | *exitcode_p = exitcode; |
| 646 | return 1; |
Ka-Ping Yee | 26fabb0 | 2001-03-23 15:36:41 +0000 | [diff] [blame] | 647 | } |
| 648 | |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 649 | |
| 650 | static void |
| 651 | handle_system_exit(void) |
| 652 | { |
| 653 | int exitcode; |
| 654 | if (_Py_HandleSystemExit(&exitcode)) { |
| 655 | Py_Exit(exitcode); |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 660 | static void |
| 661 | _PyErr_PrintEx(PyThreadState *tstate, int set_sys_last_vars) |
Guido van Rossum | a61691e | 1998-02-06 22:27:24 +0000 | [diff] [blame] | 662 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 663 | PyObject *exception, *v, *tb, *hook; |
Guido van Rossum | 66e8e86 | 2001-03-23 17:54:43 +0000 | [diff] [blame] | 664 | |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 665 | handle_system_exit(); |
| 666 | |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 667 | _PyErr_Fetch(tstate, &exception, &v, &tb); |
| 668 | if (exception == NULL) { |
| 669 | goto done; |
| 670 | } |
| 671 | |
| 672 | _PyErr_NormalizeException(tstate, &exception, &v, &tb); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 673 | if (tb == NULL) { |
| 674 | tb = Py_None; |
| 675 | Py_INCREF(tb); |
| 676 | } |
| 677 | PyException_SetTraceback(v, tb); |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 678 | if (exception == NULL) { |
| 679 | goto done; |
| 680 | } |
| 681 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 682 | /* Now we know v != NULL too */ |
| 683 | if (set_sys_last_vars) { |
xdegaye | 66caacf | 2017-10-23 18:08:41 +0200 | [diff] [blame] | 684 | if (_PySys_SetObjectId(&PyId_last_type, exception) < 0) { |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 685 | _PyErr_Clear(tstate); |
xdegaye | 66caacf | 2017-10-23 18:08:41 +0200 | [diff] [blame] | 686 | } |
| 687 | if (_PySys_SetObjectId(&PyId_last_value, v) < 0) { |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 688 | _PyErr_Clear(tstate); |
xdegaye | 66caacf | 2017-10-23 18:08:41 +0200 | [diff] [blame] | 689 | } |
| 690 | if (_PySys_SetObjectId(&PyId_last_traceback, tb) < 0) { |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 691 | _PyErr_Clear(tstate); |
xdegaye | 66caacf | 2017-10-23 18:08:41 +0200 | [diff] [blame] | 692 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 693 | } |
Victor Stinner | 0905437 | 2013-11-06 22:41:44 +0100 | [diff] [blame] | 694 | hook = _PySys_GetObjectId(&PyId_excepthook); |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 695 | if (_PySys_Audit(tstate, "sys.excepthook", "OOOO", hook ? hook : Py_None, |
| 696 | exception, v, tb) < 0) { |
Steve Dower | bea33f5 | 2019-11-28 08:46:11 -0800 | [diff] [blame] | 697 | if (PyErr_ExceptionMatches(PyExc_RuntimeError)) { |
| 698 | PyErr_Clear(); |
| 699 | goto done; |
| 700 | } |
| 701 | _PyErr_WriteUnraisableMsg("in audit hook", NULL); |
| 702 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 703 | if (hook) { |
Victor Stinner | 71cb64a | 2016-08-20 00:57:43 +0200 | [diff] [blame] | 704 | PyObject* stack[3]; |
| 705 | PyObject *result; |
| 706 | |
| 707 | stack[0] = exception; |
| 708 | stack[1] = v; |
| 709 | stack[2] = tb; |
Victor Stinner | 559bb6a | 2016-08-22 22:48:54 +0200 | [diff] [blame] | 710 | result = _PyObject_FastCall(hook, stack, 3); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 711 | if (result == NULL) { |
Victor Stinner | 1208328 | 2019-05-17 23:05:29 +0200 | [diff] [blame] | 712 | handle_system_exit(); |
| 713 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 714 | PyObject *exception2, *v2, *tb2; |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 715 | _PyErr_Fetch(tstate, &exception2, &v2, &tb2); |
| 716 | _PyErr_NormalizeException(tstate, &exception2, &v2, &tb2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 717 | /* It should not be possible for exception2 or v2 |
| 718 | to be NULL. However PyErr_Display() can't |
| 719 | tolerate NULLs, so just be safe. */ |
| 720 | if (exception2 == NULL) { |
| 721 | exception2 = Py_None; |
| 722 | Py_INCREF(exception2); |
| 723 | } |
| 724 | if (v2 == NULL) { |
| 725 | v2 = Py_None; |
| 726 | Py_INCREF(v2); |
| 727 | } |
| 728 | fflush(stdout); |
| 729 | PySys_WriteStderr("Error in sys.excepthook:\n"); |
| 730 | PyErr_Display(exception2, v2, tb2); |
| 731 | PySys_WriteStderr("\nOriginal exception was:\n"); |
| 732 | PyErr_Display(exception, v, tb); |
| 733 | Py_DECREF(exception2); |
| 734 | Py_DECREF(v2); |
| 735 | Py_XDECREF(tb2); |
| 736 | } |
| 737 | Py_XDECREF(result); |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 738 | } |
| 739 | else { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 740 | PySys_WriteStderr("sys.excepthook is missing\n"); |
| 741 | PyErr_Display(exception, v, tb); |
| 742 | } |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 743 | |
| 744 | done: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 745 | Py_XDECREF(exception); |
| 746 | Py_XDECREF(v); |
| 747 | Py_XDECREF(tb); |
Ka-Ping Yee | b5c5132 | 2001-03-23 02:46:52 +0000 | [diff] [blame] | 748 | } |
| 749 | |
Victor Stinner | 438a12d | 2019-05-24 17:01:38 +0200 | [diff] [blame] | 750 | void |
| 751 | _PyErr_Print(PyThreadState *tstate) |
| 752 | { |
| 753 | _PyErr_PrintEx(tstate, 1); |
| 754 | } |
| 755 | |
| 756 | void |
| 757 | PyErr_PrintEx(int set_sys_last_vars) |
| 758 | { |
| 759 | PyThreadState *tstate = _PyThreadState_GET(); |
| 760 | _PyErr_PrintEx(tstate, set_sys_last_vars); |
| 761 | } |
| 762 | |
| 763 | void |
| 764 | PyErr_Print(void) |
| 765 | { |
| 766 | PyErr_PrintEx(1); |
| 767 | } |
| 768 | |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 769 | static void |
| 770 | print_exception(PyObject *f, PyObject *value) |
| 771 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 772 | int err = 0; |
Serhiy Storchaka | 98c4433 | 2020-10-10 22:23:42 +0300 | [diff] [blame^] | 773 | PyObject *type, *tb, *tmp; |
Martin v. Löwis | 1c67dd9 | 2011-10-14 15:16:45 +0200 | [diff] [blame] | 774 | _Py_IDENTIFIER(print_file_and_line); |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 775 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 776 | if (!PyExceptionInstance_Check(value)) { |
Victor Stinner | 52ce3b0 | 2013-12-09 02:10:08 +0100 | [diff] [blame] | 777 | err = PyFile_WriteString("TypeError: print_exception(): Exception expected for value, ", f); |
| 778 | err += PyFile_WriteString(Py_TYPE(value)->tp_name, f); |
| 779 | err += PyFile_WriteString(" found\n", f); |
| 780 | if (err) |
| 781 | PyErr_Clear(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 782 | return; |
| 783 | } |
Benjamin Peterson | 2658260 | 2008-08-23 20:08:07 +0000 | [diff] [blame] | 784 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 785 | Py_INCREF(value); |
| 786 | fflush(stdout); |
| 787 | type = (PyObject *) Py_TYPE(value); |
| 788 | tb = PyException_GetTraceback(value); |
| 789 | if (tb && tb != Py_None) |
| 790 | err = PyTraceBack_Print(tb, f); |
| 791 | if (err == 0 && |
Serhiy Storchaka | 98c4433 | 2020-10-10 22:23:42 +0300 | [diff] [blame^] | 792 | (err = _PyObject_LookupAttrId(value, &PyId_print_file_and_line, &tmp)) > 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 793 | { |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 794 | PyObject *message, *filename, *text; |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 795 | Py_ssize_t lineno, offset; |
Serhiy Storchaka | 98c4433 | 2020-10-10 22:23:42 +0300 | [diff] [blame^] | 796 | err = 0; |
| 797 | Py_DECREF(tmp); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 798 | if (!parse_syntax_error(value, &message, &filename, |
| 799 | &lineno, &offset, &text)) |
| 800 | PyErr_Clear(); |
| 801 | else { |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 802 | PyObject *line; |
| 803 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 804 | Py_DECREF(value); |
| 805 | value = message; |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 806 | |
Ammar Askar | 90d2970 | 2020-06-02 08:17:24 +0000 | [diff] [blame] | 807 | line = PyUnicode_FromFormat(" File \"%S\", line %zd\n", |
Victor Stinner | efa7a0e | 2013-11-07 12:37:56 +0100 | [diff] [blame] | 808 | filename, lineno); |
| 809 | Py_DECREF(filename); |
| 810 | if (line != NULL) { |
| 811 | PyFile_WriteObject(line, f, Py_PRINT_RAW); |
| 812 | Py_DECREF(line); |
| 813 | } |
| 814 | |
| 815 | if (text != NULL) { |
| 816 | print_error_text(f, offset, text); |
| 817 | Py_DECREF(text); |
| 818 | } |
| 819 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 820 | /* Can't be bothered to check all those |
| 821 | PyFile_WriteString() calls */ |
| 822 | if (PyErr_Occurred()) |
| 823 | err = -1; |
| 824 | } |
| 825 | } |
| 826 | if (err) { |
| 827 | /* Don't do anything else */ |
| 828 | } |
| 829 | else { |
| 830 | PyObject* moduleName; |
Serhiy Storchaka | ceeef10 | 2018-06-15 11:09:43 +0300 | [diff] [blame] | 831 | const char *className; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 832 | _Py_IDENTIFIER(__module__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 833 | assert(PyExceptionClass_Check(type)); |
| 834 | className = PyExceptionClass_Name(type); |
| 835 | if (className != NULL) { |
Serhiy Storchaka | ceeef10 | 2018-06-15 11:09:43 +0300 | [diff] [blame] | 836 | const char *dot = strrchr(className, '.'); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 837 | if (dot != NULL) |
| 838 | className = dot+1; |
| 839 | } |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 840 | |
Martin v. Löwis | 1ee1b6f | 2011-10-10 18:11:30 +0200 | [diff] [blame] | 841 | moduleName = _PyObject_GetAttrId(type, &PyId___module__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 842 | if (moduleName == NULL || !PyUnicode_Check(moduleName)) |
| 843 | { |
Victor Stinner | 13b21bd | 2011-05-26 14:25:13 +0200 | [diff] [blame] | 844 | Py_XDECREF(moduleName); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 845 | err = PyFile_WriteString("<unknown>", f); |
| 846 | } |
| 847 | else { |
Serhiy Storchaka | f5894dd | 2016-11-16 15:40:39 +0200 | [diff] [blame] | 848 | if (!_PyUnicode_EqualToASCIIId(moduleName, &PyId_builtins)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 849 | { |
Victor Stinner | 937114f | 2013-11-07 00:12:30 +0100 | [diff] [blame] | 850 | err = PyFile_WriteObject(moduleName, f, Py_PRINT_RAW); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 851 | err += PyFile_WriteString(".", f); |
| 852 | } |
| 853 | Py_DECREF(moduleName); |
| 854 | } |
| 855 | if (err == 0) { |
| 856 | if (className == NULL) |
| 857 | err = PyFile_WriteString("<unknown>", f); |
| 858 | else |
| 859 | err = PyFile_WriteString(className, f); |
| 860 | } |
| 861 | } |
| 862 | if (err == 0 && (value != Py_None)) { |
| 863 | PyObject *s = PyObject_Str(value); |
| 864 | /* only print colon if the str() of the |
| 865 | object is not the empty string |
| 866 | */ |
Martin Panter | 3263f68 | 2016-02-28 03:16:11 +0000 | [diff] [blame] | 867 | if (s == NULL) { |
| 868 | PyErr_Clear(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 869 | err = -1; |
Martin Panter | 3263f68 | 2016-02-28 03:16:11 +0000 | [diff] [blame] | 870 | PyFile_WriteString(": <exception str() failed>", f); |
| 871 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 872 | else if (!PyUnicode_Check(s) || |
Victor Stinner | e251d6d | 2011-11-20 19:20:00 +0100 | [diff] [blame] | 873 | PyUnicode_GetLength(s) != 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 874 | err = PyFile_WriteString(": ", f); |
| 875 | if (err == 0) |
| 876 | err = PyFile_WriteObject(s, f, Py_PRINT_RAW); |
| 877 | Py_XDECREF(s); |
| 878 | } |
| 879 | /* try to write a newline in any case */ |
Martin Panter | 3263f68 | 2016-02-28 03:16:11 +0000 | [diff] [blame] | 880 | if (err < 0) { |
| 881 | PyErr_Clear(); |
| 882 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 883 | err += PyFile_WriteString("\n", f); |
| 884 | Py_XDECREF(tb); |
| 885 | Py_DECREF(value); |
| 886 | /* If an error happened here, don't show it. |
| 887 | XXX This is wrong, but too many callers rely on this behavior. */ |
| 888 | if (err != 0) |
| 889 | PyErr_Clear(); |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 890 | } |
| 891 | |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 892 | static const char cause_message[] = |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 893 | "\nThe above exception was the direct cause " |
| 894 | "of the following exception:\n\n"; |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 895 | |
Serhiy Storchaka | 2d06e84 | 2015-12-25 19:53:18 +0200 | [diff] [blame] | 896 | static const char context_message[] = |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 897 | "\nDuring handling of the above exception, " |
| 898 | "another exception occurred:\n\n"; |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 899 | |
| 900 | static void |
| 901 | print_exception_recursive(PyObject *f, PyObject *value, PyObject *seen) |
| 902 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 903 | int err = 0, res; |
| 904 | PyObject *cause, *context; |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 905 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 906 | if (seen != NULL) { |
| 907 | /* Exception chaining */ |
Zane Bitter | de86073 | 2017-10-17 17:29:39 -0400 | [diff] [blame] | 908 | PyObject *value_id = PyLong_FromVoidPtr(value); |
| 909 | if (value_id == NULL || PySet_Add(seen, value_id) == -1) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 910 | PyErr_Clear(); |
| 911 | else if (PyExceptionInstance_Check(value)) { |
Zane Bitter | de86073 | 2017-10-17 17:29:39 -0400 | [diff] [blame] | 912 | PyObject *check_id = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 913 | cause = PyException_GetCause(value); |
| 914 | context = PyException_GetContext(value); |
Benjamin Peterson | d5a1c44 | 2012-05-14 22:09:31 -0700 | [diff] [blame] | 915 | if (cause) { |
Zane Bitter | de86073 | 2017-10-17 17:29:39 -0400 | [diff] [blame] | 916 | check_id = PyLong_FromVoidPtr(cause); |
| 917 | if (check_id == NULL) { |
| 918 | res = -1; |
| 919 | } else { |
| 920 | res = PySet_Contains(seen, check_id); |
| 921 | Py_DECREF(check_id); |
| 922 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 923 | if (res == -1) |
| 924 | PyErr_Clear(); |
| 925 | if (res == 0) { |
| 926 | print_exception_recursive( |
| 927 | f, cause, seen); |
| 928 | err |= PyFile_WriteString( |
| 929 | cause_message, f); |
| 930 | } |
| 931 | } |
Benjamin Peterson | d5a1c44 | 2012-05-14 22:09:31 -0700 | [diff] [blame] | 932 | else if (context && |
| 933 | !((PyBaseExceptionObject *)value)->suppress_context) { |
Zane Bitter | de86073 | 2017-10-17 17:29:39 -0400 | [diff] [blame] | 934 | check_id = PyLong_FromVoidPtr(context); |
| 935 | if (check_id == NULL) { |
| 936 | res = -1; |
| 937 | } else { |
| 938 | res = PySet_Contains(seen, check_id); |
| 939 | Py_DECREF(check_id); |
| 940 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 941 | if (res == -1) |
| 942 | PyErr_Clear(); |
| 943 | if (res == 0) { |
| 944 | print_exception_recursive( |
| 945 | f, context, seen); |
| 946 | err |= PyFile_WriteString( |
| 947 | context_message, f); |
| 948 | } |
| 949 | } |
| 950 | Py_XDECREF(context); |
| 951 | Py_XDECREF(cause); |
| 952 | } |
Zane Bitter | de86073 | 2017-10-17 17:29:39 -0400 | [diff] [blame] | 953 | Py_XDECREF(value_id); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | } |
| 955 | print_exception(f, value); |
| 956 | if (err != 0) |
| 957 | PyErr_Clear(); |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 958 | } |
| 959 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 960 | void |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 961 | _PyErr_Display(PyObject *file, PyObject *exception, PyObject *value, PyObject *tb) |
Ka-Ping Yee | b5c5132 | 2001-03-23 02:46:52 +0000 | [diff] [blame] | 962 | { |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 963 | assert(file != NULL && file != Py_None); |
| 964 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 965 | PyObject *seen; |
Antoine Pitrou | 24201d4 | 2013-10-13 21:53:13 +0200 | [diff] [blame] | 966 | if (PyExceptionInstance_Check(value) |
| 967 | && tb != NULL && PyTraceBack_Check(tb)) { |
| 968 | /* Put the traceback on the exception, otherwise it won't get |
| 969 | displayed. See issue #18776. */ |
| 970 | PyObject *cur_tb = PyException_GetTraceback(value); |
| 971 | if (cur_tb == NULL) |
| 972 | PyException_SetTraceback(value, tb); |
| 973 | else |
| 974 | Py_DECREF(cur_tb); |
| 975 | } |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 976 | |
| 977 | /* We choose to ignore seen being possibly NULL, and report |
| 978 | at least the main exception (it could be a MemoryError). |
| 979 | */ |
| 980 | seen = PySet_New(NULL); |
| 981 | if (seen == NULL) { |
| 982 | PyErr_Clear(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 983 | } |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 984 | print_exception_recursive(file, value, seen); |
| 985 | Py_XDECREF(seen); |
Victor Stinner | a85a1d3 | 2019-05-28 16:01:17 +0200 | [diff] [blame] | 986 | |
| 987 | /* Call file.flush() */ |
Jeroen Demeyer | 762f93f | 2019-07-08 10:19:25 +0200 | [diff] [blame] | 988 | PyObject *res = _PyObject_CallMethodIdNoArgs(file, &PyId_flush); |
Victor Stinner | a85a1d3 | 2019-05-28 16:01:17 +0200 | [diff] [blame] | 989 | if (!res) { |
| 990 | /* Silently ignore file.flush() error */ |
| 991 | PyErr_Clear(); |
| 992 | } |
| 993 | else { |
| 994 | Py_DECREF(res); |
| 995 | } |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 996 | } |
| 997 | |
| 998 | void |
| 999 | PyErr_Display(PyObject *exception, PyObject *value, PyObject *tb) |
| 1000 | { |
| 1001 | PyObject *file = _PySys_GetObjectId(&PyId_stderr); |
| 1002 | if (file == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1003 | _PyObject_Dump(value); |
| 1004 | fprintf(stderr, "lost sys.stderr\n"); |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 1005 | return; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1006 | } |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 1007 | if (file == Py_None) { |
| 1008 | return; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1009 | } |
Victor Stinner | cd590a7 | 2019-05-28 00:39:52 +0200 | [diff] [blame] | 1010 | |
| 1011 | _PyErr_Display(file, exception, value, tb); |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1012 | } |
| 1013 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1014 | PyObject * |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1015 | PyRun_StringFlags(const char *str, int start, PyObject *globals, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1016 | PyObject *locals, PyCompilerFlags *flags) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1017 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1018 | PyObject *ret = NULL; |
| 1019 | mod_ty mod; |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1020 | PyArena *arena; |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1021 | PyObject *filename; |
| 1022 | |
| 1023 | filename = _PyUnicode_FromId(&PyId_string); /* borrowed */ |
| 1024 | if (filename == NULL) |
| 1025 | return NULL; |
| 1026 | |
| 1027 | arena = PyArena_New(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1028 | if (arena == NULL) |
| 1029 | return NULL; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1030 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 1031 | mod = PyParser_ASTFromStringObject(str, filename, start, flags, arena); |
Pablo Galindo | c5fc156 | 2020-04-22 23:29:27 +0100 | [diff] [blame] | 1032 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1033 | if (mod != NULL) |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1034 | ret = run_mod(mod, filename, globals, locals, flags, arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1035 | PyArena_Free(arena); |
| 1036 | return ret; |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 1037 | } |
| 1038 | |
| 1039 | PyObject * |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1040 | PyRun_FileExFlags(FILE *fp, const char *filename_str, int start, PyObject *globals, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1041 | PyObject *locals, int closeit, PyCompilerFlags *flags) |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 1042 | { |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1043 | PyObject *ret = NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1044 | mod_ty mod; |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1045 | PyArena *arena = NULL; |
| 1046 | PyObject *filename; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1047 | |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1048 | filename = PyUnicode_DecodeFSDefault(filename_str); |
| 1049 | if (filename == NULL) |
| 1050 | goto exit; |
| 1051 | |
| 1052 | arena = PyArena_New(); |
| 1053 | if (arena == NULL) |
| 1054 | goto exit; |
| 1055 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 1056 | mod = PyParser_ASTFromFileObject(fp, filename, NULL, start, NULL, NULL, |
| 1057 | flags, NULL, arena); |
Pablo Galindo | c5fc156 | 2020-04-22 23:29:27 +0100 | [diff] [blame] | 1058 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1059 | if (closeit) |
| 1060 | fclose(fp); |
| 1061 | if (mod == NULL) { |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1062 | goto exit; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1063 | } |
| 1064 | ret = run_mod(mod, filename, globals, locals, flags, arena); |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1065 | |
| 1066 | exit: |
| 1067 | Py_XDECREF(filename); |
| 1068 | if (arena != NULL) |
| 1069 | PyArena_Free(arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1070 | return ret; |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 1071 | } |
| 1072 | |
Guido van Rossum | 6c193fa | 2007-12-05 05:14:58 +0000 | [diff] [blame] | 1073 | static void |
| 1074 | flush_io(void) |
| 1075 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1076 | PyObject *f, *r; |
| 1077 | PyObject *type, *value, *traceback; |
Amaury Forgeot d'Arc | 9ed7735 | 2008-04-04 23:25:27 +0000 | [diff] [blame] | 1078 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1079 | /* Save the current exception */ |
| 1080 | PyErr_Fetch(&type, &value, &traceback); |
Amaury Forgeot d'Arc | 9ed7735 | 2008-04-04 23:25:27 +0000 | [diff] [blame] | 1081 | |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 1082 | f = _PySys_GetObjectId(&PyId_stderr); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1083 | if (f != NULL) { |
Jeroen Demeyer | 762f93f | 2019-07-08 10:19:25 +0200 | [diff] [blame] | 1084 | r = _PyObject_CallMethodIdNoArgs(f, &PyId_flush); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1085 | if (r) |
| 1086 | Py_DECREF(r); |
| 1087 | else |
| 1088 | PyErr_Clear(); |
| 1089 | } |
Victor Stinner | bd303c1 | 2013-11-07 23:07:29 +0100 | [diff] [blame] | 1090 | f = _PySys_GetObjectId(&PyId_stdout); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1091 | if (f != NULL) { |
Jeroen Demeyer | 762f93f | 2019-07-08 10:19:25 +0200 | [diff] [blame] | 1092 | r = _PyObject_CallMethodIdNoArgs(f, &PyId_flush); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1093 | if (r) |
| 1094 | Py_DECREF(r); |
| 1095 | else |
| 1096 | PyErr_Clear(); |
| 1097 | } |
Amaury Forgeot d'Arc | 9ed7735 | 2008-04-04 23:25:27 +0000 | [diff] [blame] | 1098 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1099 | PyErr_Restore(type, value, traceback); |
Guido van Rossum | 6c193fa | 2007-12-05 05:14:58 +0000 | [diff] [blame] | 1100 | } |
| 1101 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1102 | static PyObject * |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1103 | run_eval_code_obj(PyThreadState *tstate, PyCodeObject *co, PyObject *globals, PyObject *locals) |
Gregory P. Smith | 38f11cc | 2019-02-16 12:57:40 -0800 | [diff] [blame] | 1104 | { |
| 1105 | PyObject *v; |
Gregory P. Smith | d9bc543 | 2019-02-20 17:35:54 -0800 | [diff] [blame] | 1106 | /* |
| 1107 | * We explicitly re-initialize _Py_UnhandledKeyboardInterrupt every eval |
| 1108 | * _just in case_ someone is calling into an embedded Python where they |
| 1109 | * don't care about an uncaught KeyboardInterrupt exception (why didn't they |
| 1110 | * leave config.install_signal_handlers set to 0?!?) but then later call |
| 1111 | * Py_Main() itself (which _checks_ this flag and dies with a signal after |
| 1112 | * its interpreter exits). We don't want a previous embedded interpreter's |
| 1113 | * uncaught exception to trigger an unexplained signal exit from a future |
| 1114 | * Py_Main() based one. |
| 1115 | */ |
| 1116 | _Py_UnhandledKeyboardInterrupt = 0; |
Victor Stinner | 9ef5dca | 2019-05-16 17:38:16 +0200 | [diff] [blame] | 1117 | |
| 1118 | /* Set globals['__builtins__'] if it doesn't exist */ |
| 1119 | if (globals != NULL && PyDict_GetItemString(globals, "__builtins__") == NULL) { |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1120 | if (PyDict_SetItemString(globals, "__builtins__", |
| 1121 | tstate->interp->builtins) < 0) { |
Victor Stinner | 9ef5dca | 2019-05-16 17:38:16 +0200 | [diff] [blame] | 1122 | return NULL; |
| 1123 | } |
| 1124 | } |
| 1125 | |
Gregory P. Smith | 38f11cc | 2019-02-16 12:57:40 -0800 | [diff] [blame] | 1126 | v = PyEval_EvalCode((PyObject*)co, globals, locals); |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1127 | if (!v && _PyErr_Occurred(tstate) == PyExc_KeyboardInterrupt) { |
Gregory P. Smith | 38f11cc | 2019-02-16 12:57:40 -0800 | [diff] [blame] | 1128 | _Py_UnhandledKeyboardInterrupt = 1; |
| 1129 | } |
| 1130 | return v; |
| 1131 | } |
| 1132 | |
| 1133 | static PyObject * |
Victor Stinner | 95701bd | 2013-11-06 18:41:07 +0100 | [diff] [blame] | 1134 | run_mod(mod_ty mod, PyObject *filename, PyObject *globals, PyObject *locals, |
| 1135 | PyCompilerFlags *flags, PyArena *arena) |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1136 | { |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1137 | PyThreadState *tstate = _PyThreadState_GET(); |
| 1138 | PyCodeObject *co = PyAST_CompileObject(mod, filename, flags, -1, arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1139 | if (co == NULL) |
| 1140 | return NULL; |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1141 | |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1142 | if (_PySys_Audit(tstate, "exec", "O", co) < 0) { |
Steve Dower | b82e17e | 2019-05-23 08:45:22 -0700 | [diff] [blame] | 1143 | Py_DECREF(co); |
| 1144 | return NULL; |
| 1145 | } |
| 1146 | |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1147 | PyObject *v = run_eval_code_obj(tstate, co, globals, locals); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1148 | Py_DECREF(co); |
| 1149 | return v; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 1150 | } |
| 1151 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1152 | static PyObject * |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 1153 | run_pyc_file(FILE *fp, const char *filename, PyObject *globals, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1154 | PyObject *locals, PyCompilerFlags *flags) |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 1155 | { |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1156 | PyThreadState *tstate = _PyThreadState_GET(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1157 | PyCodeObject *co; |
| 1158 | PyObject *v; |
| 1159 | long magic; |
| 1160 | long PyImport_GetMagicNumber(void); |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 1161 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1162 | magic = PyMarshal_ReadLongFromFile(fp); |
| 1163 | if (magic != PyImport_GetMagicNumber()) { |
Victor Stinner | 5200f55 | 2015-03-18 13:56:25 +0100 | [diff] [blame] | 1164 | if (!PyErr_Occurred()) |
| 1165 | PyErr_SetString(PyExc_RuntimeError, |
| 1166 | "Bad magic number in .pyc file"); |
Zackery Spytz | ea73775 | 2018-06-23 21:15:24 -0600 | [diff] [blame] | 1167 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1168 | } |
Benjamin Peterson | 42aa93b | 2017-12-09 10:26:52 -0800 | [diff] [blame] | 1169 | /* Skip the rest of the header. */ |
| 1170 | (void) PyMarshal_ReadLongFromFile(fp); |
Antoine Pitrou | 5136ac0 | 2012-01-13 18:52:16 +0100 | [diff] [blame] | 1171 | (void) PyMarshal_ReadLongFromFile(fp); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1172 | (void) PyMarshal_ReadLongFromFile(fp); |
Zackery Spytz | ea73775 | 2018-06-23 21:15:24 -0600 | [diff] [blame] | 1173 | if (PyErr_Occurred()) { |
| 1174 | goto error; |
| 1175 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1176 | v = PyMarshal_ReadLastObjectFromFile(fp); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1177 | if (v == NULL || !PyCode_Check(v)) { |
| 1178 | Py_XDECREF(v); |
| 1179 | PyErr_SetString(PyExc_RuntimeError, |
| 1180 | "Bad code object in .pyc file"); |
Zackery Spytz | ea73775 | 2018-06-23 21:15:24 -0600 | [diff] [blame] | 1181 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1182 | } |
Zackery Spytz | ea73775 | 2018-06-23 21:15:24 -0600 | [diff] [blame] | 1183 | fclose(fp); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1184 | co = (PyCodeObject *)v; |
Victor Stinner | 1c1e68c | 2020-03-27 15:11:45 +0100 | [diff] [blame] | 1185 | v = run_eval_code_obj(tstate, co, globals, locals); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1186 | if (v && flags) |
| 1187 | flags->cf_flags |= (co->co_flags & PyCF_MASK); |
| 1188 | Py_DECREF(co); |
| 1189 | return v; |
Zackery Spytz | ea73775 | 2018-06-23 21:15:24 -0600 | [diff] [blame] | 1190 | error: |
| 1191 | fclose(fp); |
| 1192 | return NULL; |
Guido van Rossum | fdef271 | 1994-09-14 13:31:04 +0000 | [diff] [blame] | 1193 | } |
| 1194 | |
Guido van Rossum | 8259805 | 1997-03-05 00:20:32 +0000 | [diff] [blame] | 1195 | PyObject * |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1196 | Py_CompileStringObject(const char *str, PyObject *filename, int start, |
| 1197 | PyCompilerFlags *flags, int optimize) |
Jeremy Hylton | bc32024 | 2001-03-22 02:47:58 +0000 | [diff] [blame] | 1198 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1199 | PyCodeObject *co; |
| 1200 | mod_ty mod; |
| 1201 | PyArena *arena = PyArena_New(); |
| 1202 | if (arena == NULL) |
| 1203 | return NULL; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1204 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 1205 | mod = PyParser_ASTFromStringObject(str, filename, start, flags, arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1206 | if (mod == NULL) { |
| 1207 | PyArena_Free(arena); |
| 1208 | return NULL; |
| 1209 | } |
| 1210 | if (flags && (flags->cf_flags & PyCF_ONLY_AST)) { |
| 1211 | PyObject *result = PyAST_mod2obj(mod); |
| 1212 | PyArena_Free(arena); |
| 1213 | return result; |
| 1214 | } |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1215 | co = PyAST_CompileObject(mod, filename, flags, optimize, arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1216 | PyArena_Free(arena); |
| 1217 | return (PyObject *)co; |
Guido van Rossum | 5b72218 | 1993-03-30 17:46:03 +0000 | [diff] [blame] | 1218 | } |
| 1219 | |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1220 | PyObject * |
| 1221 | Py_CompileStringExFlags(const char *str, const char *filename_str, int start, |
| 1222 | PyCompilerFlags *flags, int optimize) |
| 1223 | { |
| 1224 | PyObject *filename, *co; |
| 1225 | filename = PyUnicode_DecodeFSDefault(filename_str); |
| 1226 | if (filename == NULL) |
| 1227 | return NULL; |
| 1228 | co = Py_CompileStringObject(str, filename, start, flags, optimize); |
| 1229 | Py_DECREF(filename); |
| 1230 | return co; |
| 1231 | } |
| 1232 | |
Martin v. Löwis | 4d0d471 | 2010-12-03 20:14:31 +0000 | [diff] [blame] | 1233 | /* For use in Py_LIMITED_API */ |
| 1234 | #undef Py_CompileString |
| 1235 | PyObject * |
| 1236 | PyCompileString(const char *str, const char *filename, int start) |
| 1237 | { |
| 1238 | return Py_CompileStringFlags(str, filename, start, NULL); |
| 1239 | } |
| 1240 | |
Dino Viehland | 4154069 | 2019-05-28 16:21:17 -0700 | [diff] [blame] | 1241 | const char * |
| 1242 | _Py_SourceAsString(PyObject *cmd, const char *funcname, const char *what, PyCompilerFlags *cf, PyObject **cmd_copy) |
| 1243 | { |
| 1244 | const char *str; |
| 1245 | Py_ssize_t size; |
| 1246 | Py_buffer view; |
| 1247 | |
| 1248 | *cmd_copy = NULL; |
| 1249 | if (PyUnicode_Check(cmd)) { |
| 1250 | cf->cf_flags |= PyCF_IGNORE_COOKIE; |
| 1251 | str = PyUnicode_AsUTF8AndSize(cmd, &size); |
| 1252 | if (str == NULL) |
| 1253 | return NULL; |
| 1254 | } |
| 1255 | else if (PyBytes_Check(cmd)) { |
| 1256 | str = PyBytes_AS_STRING(cmd); |
| 1257 | size = PyBytes_GET_SIZE(cmd); |
| 1258 | } |
| 1259 | else if (PyByteArray_Check(cmd)) { |
| 1260 | str = PyByteArray_AS_STRING(cmd); |
| 1261 | size = PyByteArray_GET_SIZE(cmd); |
| 1262 | } |
| 1263 | else if (PyObject_GetBuffer(cmd, &view, PyBUF_SIMPLE) == 0) { |
| 1264 | /* Copy to NUL-terminated buffer. */ |
| 1265 | *cmd_copy = PyBytes_FromStringAndSize( |
| 1266 | (const char *)view.buf, view.len); |
| 1267 | PyBuffer_Release(&view); |
| 1268 | if (*cmd_copy == NULL) { |
| 1269 | return NULL; |
| 1270 | } |
| 1271 | str = PyBytes_AS_STRING(*cmd_copy); |
| 1272 | size = PyBytes_GET_SIZE(*cmd_copy); |
| 1273 | } |
| 1274 | else { |
| 1275 | PyErr_Format(PyExc_TypeError, |
| 1276 | "%s() arg 1 must be a %s object", |
| 1277 | funcname, what); |
| 1278 | return NULL; |
| 1279 | } |
| 1280 | |
| 1281 | if (strlen(str) != (size_t)size) { |
| 1282 | PyErr_SetString(PyExc_ValueError, |
| 1283 | "source code string cannot contain null bytes"); |
| 1284 | Py_CLEAR(*cmd_copy); |
| 1285 | return NULL; |
| 1286 | } |
| 1287 | return str; |
| 1288 | } |
| 1289 | |
Jeremy Hylton | 4b38da6 | 2001-02-02 18:19:15 +0000 | [diff] [blame] | 1290 | struct symtable * |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1291 | Py_SymtableStringObject(const char *str, PyObject *filename, int start) |
Jeremy Hylton | 4b38da6 | 2001-02-02 18:19:15 +0000 | [diff] [blame] | 1292 | { |
Victor Stinner | 37d66d7 | 2019-06-13 02:16:41 +0200 | [diff] [blame] | 1293 | PyCompilerFlags flags = _PyCompilerFlags_INIT; |
Dino Viehland | 4154069 | 2019-05-28 16:21:17 -0700 | [diff] [blame] | 1294 | return _Py_SymtableStringObjectFlags(str, filename, start, &flags); |
| 1295 | } |
| 1296 | |
| 1297 | struct symtable * |
| 1298 | _Py_SymtableStringObjectFlags(const char *str, PyObject *filename, int start, PyCompilerFlags *flags) |
| 1299 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1300 | struct symtable *st; |
| 1301 | mod_ty mod; |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1302 | PyArena *arena; |
| 1303 | |
| 1304 | arena = PyArena_New(); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1305 | if (arena == NULL) |
| 1306 | return NULL; |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 1307 | |
Lysandros Nikolaou | 564cd18 | 2020-06-22 02:47:46 +0300 | [diff] [blame] | 1308 | mod = PyParser_ASTFromStringObject(str, filename, start, flags, arena); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1309 | if (mod == NULL) { |
| 1310 | PyArena_Free(arena); |
| 1311 | return NULL; |
| 1312 | } |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1313 | st = PySymtable_BuildObject(mod, filename, 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1314 | PyArena_Free(arena); |
| 1315 | return st; |
Jeremy Hylton | 4b38da6 | 2001-02-02 18:19:15 +0000 | [diff] [blame] | 1316 | } |
| 1317 | |
Victor Stinner | 14e461d | 2013-08-26 22:28:21 +0200 | [diff] [blame] | 1318 | struct symtable * |
| 1319 | Py_SymtableString(const char *str, const char *filename_str, int start) |
| 1320 | { |
| 1321 | PyObject *filename; |
| 1322 | struct symtable *st; |
| 1323 | |
| 1324 | filename = PyUnicode_DecodeFSDefault(filename_str); |
| 1325 | if (filename == NULL) |
| 1326 | return NULL; |
| 1327 | st = Py_SymtableStringObject(str, filename, start); |
| 1328 | Py_DECREF(filename); |
| 1329 | return st; |
| 1330 | } |
| 1331 | |
Zachary Ware | c4821d6 | 2014-11-21 23:35:12 -0600 | [diff] [blame] | 1332 | #if defined(USE_STACKCHECK) |
| 1333 | #if defined(WIN32) && defined(_MSC_VER) |
| 1334 | |
| 1335 | /* Stack checking for Microsoft C */ |
| 1336 | |
| 1337 | #include <malloc.h> |
| 1338 | #include <excpt.h> |
| 1339 | |
| 1340 | /* |
| 1341 | * Return non-zero when we run out of memory on the stack; zero otherwise. |
| 1342 | */ |
| 1343 | int |
| 1344 | PyOS_CheckStack(void) |
| 1345 | { |
| 1346 | __try { |
| 1347 | /* alloca throws a stack overflow exception if there's |
| 1348 | not enough space left on the stack */ |
| 1349 | alloca(PYOS_STACK_MARGIN * sizeof(void*)); |
| 1350 | return 0; |
| 1351 | } __except (GetExceptionCode() == STATUS_STACK_OVERFLOW ? |
| 1352 | EXCEPTION_EXECUTE_HANDLER : |
| 1353 | EXCEPTION_CONTINUE_SEARCH) { |
| 1354 | int errcode = _resetstkoflw(); |
| 1355 | if (errcode == 0) |
| 1356 | { |
| 1357 | Py_FatalError("Could not reset the stack!"); |
| 1358 | } |
| 1359 | } |
| 1360 | return 1; |
| 1361 | } |
| 1362 | |
| 1363 | #endif /* WIN32 && _MSC_VER */ |
| 1364 | |
| 1365 | /* Alternate implementations can be added here... */ |
| 1366 | |
| 1367 | #endif /* USE_STACKCHECK */ |
| 1368 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 1369 | #ifdef __cplusplus |
| 1370 | } |
| 1371 | #endif |