cpython-lru_cache-weakref: Python/traceback.c annotate

annotate Python/traceback.c @ 42736:ddefbdbdbcb5 2.5

Backport fix of #1752175.

author	Georg Brandl <georg@python.org>
date	Thu, 23 Aug 2007 18:08:33 +0000
parents	0e95c77512f5
children	6620a510e9a9

rev	line source
145 853b736a6a9e Added copyright notice. Guido van Rossum <guido@python.org> parents: 86 diff changeset	1
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Traceback implementation */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	3
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	4 #include "Python.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	5
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 31739 diff changeset	6 #include "code.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	7 #include "frameobject.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	8 #include "structmember.h"
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	9 #include "osdefs.h"
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	10 #include "traceback.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	11
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	12 #define OFF(x) offsetof(PyTracebackObject, x)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	13
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	14 static struct memberlist tb_memberlist[] = {
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	15 {"tb_next", T_OBJECT, OFF(tb_next)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	16 {"tb_frame", T_OBJECT, OFF(tb_frame)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	17 {"tb_lasti", T_INT, OFF(tb_lasti)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	18 {"tb_lineno", T_INT, OFF(tb_lineno)},
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	19 {NULL} /* Sentinel */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	20 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	21
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	22 static PyObject *
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	23 tb_getattr(PyTracebackObject tb, char name)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	24 {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	25 return PyMember_Get((char *)tb, tb_memberlist, name);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	26 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	27
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	28 static void
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	29 tb_dealloc(PyTracebackObject *tb)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	30 {
22650 2288c724fe2b Call PyObject_GC_UnTrack before putting an object on the list of trash. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21077 diff changeset	31 PyObject_GC_UnTrack(tb);
11999 c94247b5c355 Christian Tismer's "trashcan" patch: Guido van Rossum <guido@python.org> parents: 11294 diff changeset	32 Py_TRASHCAN_SAFE_BEGIN(tb)
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	33 Py_XDECREF(tb->tb_next);
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	34 Py_XDECREF(tb->tb_frame);
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	35 PyObject_GC_Del(tb);
11999 c94247b5c355 Christian Tismer's "trashcan" patch: Guido van Rossum <guido@python.org> parents: 11294 diff changeset	36 Py_TRASHCAN_SAFE_END(tb)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	37 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	38
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	39 static int
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	40 tb_traverse(PyTracebackObject tb, visitproc visit, void arg)
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	41 {
37756 7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or Thomas Wouters <thomas@python.org> parents: 37748 diff changeset	42 Py_VISIT(tb->tb_next);
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or Thomas Wouters <thomas@python.org> parents: 37748 diff changeset	43 Py_VISIT(tb->tb_frame);
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or Thomas Wouters <thomas@python.org> parents: 37748 diff changeset	44 return 0;
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	45 }
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	46
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	47 static void
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	48 tb_clear(PyTracebackObject *tb)
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	49 {
37748 d1547426ab61 Use Py_CLEAR instead of in-place DECREF/XDECREF or custom macros, for Thomas Wouters <thomas@python.org> parents: 37086 diff changeset	50 Py_CLEAR(tb->tb_next);
d1547426ab61 Use Py_CLEAR instead of in-place DECREF/XDECREF or custom macros, for Thomas Wouters <thomas@python.org> parents: 37086 diff changeset	51 Py_CLEAR(tb->tb_frame);
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	52 }
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	53
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	54 PyTypeObject PyTraceBack_Type = {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	55 PyObject_HEAD_INIT(&PyType_Type)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	56 0,
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	57 "traceback",
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	58 sizeof(PyTracebackObject),
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	59 0,
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	60 (destructor)tb_dealloc, /tp_dealloc/
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	61 0, /tp_print/
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	62 (getattrfunc)tb_getattr, /tp_getattr/
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	63 0, /tp_setattr/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	64 0, /tp_compare/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	65 0, /tp_repr/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	66 0, /tp_as_number/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	67 0, /tp_as_sequence/
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	68 0, /tp_as_mapping/
20623 4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	69 0, /* tp_hash */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	70 0, /* tp_call */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	71 0, /* tp_str */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	72 0, /* tp_getattro */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	73 0, /* tp_setattro */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	74 0, /* tp_as_buffer */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	75 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,/* tp_flags */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	76 0, /* tp_doc */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	77 (traverseproc)tb_traverse, /* tp_traverse */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	78 (inquiry)tb_clear, /* tp_clear */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	79 0, /* tp_richcompare */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	80 0, /* tp_weaklistoffset */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	81 0, /* tp_iter */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	82 0, /* tp_iternext */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	83 0, /* tp_methods */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	84 0, /* tp_members */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	85 0, /* tp_getset */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	86 0, /* tp_base */
4fb7727e4f47 Make traceback objects collectable. Jeremy Hylton <jeremy@alum.mit.edu> parents: 20618 diff changeset	87 0, /* tp_dict */
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	88 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	89
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	90 static PyTracebackObject *
49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	91 newtracebackobject(PyTracebackObject next, PyFrameObject frame)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	92 {
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	93 PyTracebackObject *tb;
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	94 if ((next != NULL && !PyTraceBack_Check(next)) \|\|
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	95 frame == NULL \|\| !PyFrame_Check(frame)) {
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	96 PyErr_BadInternalCall();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	97 return NULL;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	98 }
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	99 tb = PyObject_GC_New(PyTracebackObject, &PyTraceBack_Type);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	100 if (tb != NULL) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	101 Py_XINCREF(next);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	102 tb->tb_next = next;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	103 Py_XINCREF(frame);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	104 tb->tb_frame = frame;
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	105 tb->tb_lasti = frame->f_lasti;
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	106 tb->tb_lineno = PyCode_Addr2Line(frame->f_code,
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 23029 diff changeset	107 frame->f_lasti);
22650 2288c724fe2b Call PyObject_GC_UnTrack before putting an object on the list of trash. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 21077 diff changeset	108 PyObject_GC_Track(tb);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	109 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	110 return tb;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	111 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	112
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	113 int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	114 PyTraceBack_Here(PyFrameObject *frame)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	115 {
40704 0e95c77512f5 Make PyTraceBack_Here use the current thread, not the Martin v. Löwis <martin@v.loewis.de> parents: 37756 diff changeset	116 PyThreadState *tstate = PyThreadState_GET();
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	117 PyTracebackObject oldtb = (PyTracebackObject ) tstate->curexc_traceback;
49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	118 PyTracebackObject *tb = newtracebackobject(oldtb, frame);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	119 if (tb == NULL)
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	120 return -1;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	121 tstate->curexc_traceback = (PyObject *)tb;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: 5404 diff changeset	122 Py_XDECREF(oldtb);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	123 return 0;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	124 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	125
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	126 static int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	127 tb_displayline(PyObject f, char filename, int lineno, char *name)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	128 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	129 int err = 0;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	130 FILE *xfp;
21057 2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c. Tim Peters <tim.peters@gmail.com> parents: 20623 diff changeset	131 char linebuf[2000];
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	132 int i;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	133 if (filename == NULL \|\| name == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	134 return -1;
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	135 /* This is needed by Emacs' compile command */
21057 2c0a9a5086e1 SF bug 485175: buffer overflow in traceback.c. Tim Peters <tim.peters@gmail.com> parents: 20623 diff changeset	136 #define FMT " File \"%.500s\", line %d, in %.500s\n"
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	137 xfp = fopen(filename, "r" PY_STDIOTEXTMODE);
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	138 if (xfp == NULL) {
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	139 /* Search tail of filename in sys.path before giving up */
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	140 PyObject *path;
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	141 char *tail = strrchr(filename, SEP);
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	142 if (tail == NULL)
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	143 tail = filename;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	144 else
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	145 tail++;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	146 path = PySys_GetObject("path");
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	147 if (path != NULL && PyList_Check(path)) {
36521 30aef3ce2b26 Use Py_ssize_t to count the Martin v. Löwis <martin@v.loewis.de> parents: 35742 diff changeset	148 Py_ssize_t _npath = PyList_Size(path);
30aef3ce2b26 Use Py_ssize_t to count the Martin v. Löwis <martin@v.loewis.de> parents: 35742 diff changeset	149 int npath = Py_SAFE_DOWNCAST(_npath, Py_ssize_t, int);
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	150 size_t taillen = strlen(tail);
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	151 char namebuf[MAXPATHLEN+1];
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	152 for (i = 0; i < npath; i++) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	153 PyObject *v = PyList_GetItem(path, i);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	154 if (v == NULL) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	155 PyErr_Clear();
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	156 break;
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	157 }
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	158 if (PyString_Check(v)) {
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	159 size_t len;
37086 3b7b295cca90 Use macro versions instead of function versions when we already know the type. Neal Norwitz <nnorwitz@gmail.com> parents: 36877 diff changeset	160 len = PyString_GET_SIZE(v);
1909 0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	161 if (len + 1 + taillen >= MAXPATHLEN)
0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	162 continue; /* Too long */
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	163 strcpy(namebuf, PyString_AsString(v));
13096 8c8de5b736dc Trent Mick's Win64 changes: size_t vs. int or long; also some overflow Guido van Rossum <guido@python.org> parents: 12576 diff changeset	164 if (strlen(namebuf) != len)
1909 0c232194a64f * Python/traceback.c: security fix -- check for buffer oveflow Guido van Rossum <guido@python.org> parents: 1831 diff changeset	165 continue; /* v contains '\0' */
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	166 if (len > 0 && namebuf[len-1] != SEP)
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	167 namebuf[len++] = SEP;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	168 strcpy(namebuf+len, tail);
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	169 xfp = fopen(namebuf, "r" PY_STDIOTEXTMODE);
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	170 if (xfp != NULL) {
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	171 filename = namebuf;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	172 break;
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	173 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	174 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	175 }
4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	176 }
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	177 }
21077 379fc66f4c96 Use PyOS_snprintf instead of sprintf. Jeremy Hylton <jeremy@alum.mit.edu> parents: 21057 diff changeset	178 PyOS_snprintf(linebuf, sizeof(linebuf), FMT, filename, lineno, name);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	179 err = PyFile_WriteString(linebuf, f);
36877 e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity. Hye-Shik Chang <hyeshik@gmail.com> parents: 36521 diff changeset	180 if (xfp == NULL)
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	181 return err;
36877 e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity. Hye-Shik Chang <hyeshik@gmail.com> parents: 36521 diff changeset	182 else if (err != 0) {
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity. Hye-Shik Chang <hyeshik@gmail.com> parents: 36521 diff changeset	183 fclose(xfp);
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity. Hye-Shik Chang <hyeshik@gmail.com> parents: 36521 diff changeset	184 return err;
e9a7a2784e17 SF #1444030: Fix several potential defects found by Coverity. Hye-Shik Chang <hyeshik@gmail.com> parents: 36521 diff changeset	185 }
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	186 for (i = 0; i < lineno; i++) {
11294 d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	187 char* pLastChar = &linebuf[sizeof(linebuf)-2];
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	188 do {
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	189 *pLastChar = '\0';
23029 8291473fde3e Mass checkin of universal newline support. Jack Jansen <jack.jansen@cwi.nl> parents: 22650 diff changeset	190 if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, xfp, NULL) == NULL)
11294 d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	191 break;
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	192 /* fgets read something; if it didn't get as
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	193 far as pLastChar, it must have found a newline
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	194 or hit the end of the file; if pLastChar is \n,
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	195 it obviously found a newline; else we haven't
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	196 yet seen a newline, so must continue */
d3696bf08eee Tim Peters fixed PR#75: very long lines cause incorrect tracebacks. Guido van Rossum <guido@python.org> parents: 5608 diff changeset	197 } while (pLastChar != '\0' && pLastChar != '\n');
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	198 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	199 if (i == lineno) {
674 4e2d239dc64c Move printing of filename and lineno to tb_displayline. Guido van Rossum <guido@python.org> parents: 597 diff changeset	200 char *p = linebuf;
2811 07fc4fefb683 ignore control-l (parallelling change to tokenizer.c) Guido van Rossum <guido@python.org> parents: 2062 diff changeset	201 while (p == ' ' \|\| p == '\t' \|\| *p == '\014')
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	202 p++;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	203 err = PyFile_WriteString(" ", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	204 if (err == 0) {
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	205 err = PyFile_WriteString(p, f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	206 if (err == 0 && strchr(p, '\n') == NULL)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	207 err = PyFile_WriteString("\n", f);
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	208 }
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	209 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	210 fclose(xfp);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	211 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	212 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	213
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	214 static int
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	215 tb_printinternal(PyTracebackObject tb, PyObject f, int limit)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	216 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	217 int err = 0;
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	218 int depth = 0;
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	219 PyTracebackObject *tb1 = tb;
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	220 while (tb1 != NULL) {
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	221 depth++;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	222 tb1 = tb1->tb_next;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	223 }
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	224 while (tb != NULL && err == 0) {
5046 658815230546 Get the line number from PyCode_Addr2Line instead of believing Guido van Rossum <guido@python.org> parents: 4503 diff changeset	225 if (depth <= limit) {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	226 err = tb_displayline(f,
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	227 PyString_AsString(
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	228 tb->tb_frame->f_code->co_filename),
1831 216b755515e6 add function name to traceback info Guido van Rossum <guido@python.org> parents: 1425 diff changeset	229 tb->tb_lineno,
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	230 PyString_AsString(tb->tb_frame->f_code->co_name));
5046 658815230546 Get the line number from PyCode_Addr2Line instead of believing Guido van Rossum <guido@python.org> parents: 4503 diff changeset	231 }
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	232 depth--;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	233 tb = tb->tb_next;
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	234 if (err == 0)
79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	235 err = PyErr_CheckSignals();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	236 }
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	237 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	238 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	239
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	240 int
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	241 PyTraceBack_Print(PyObject v, PyObject f)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	242 {
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	243 int err;
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	244 PyObject *limitv;
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	245 int limit = 1000;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	246 if (v == NULL)
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	247 return 0;
20618 57b51966a4f1 Removed two pointless and obfuscating macros. Tim Peters <tim.peters@gmail.com> parents: 14375 diff changeset	248 if (!PyTraceBack_Check(v)) {
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	249 PyErr_BadInternalCall();
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	250 return -1;
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	251 }
5372 424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	252 limitv = PySys_GetObject("tracebacklimit");
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	253 if (limitv && PyInt_Check(limitv)) {
424922afc1bb Quickly renamed. Guido van Rossum <guido@python.org> parents: 5317 diff changeset	254 limit = PyInt_AsLong(limitv);
1425 72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	255 if (limit <= 0)
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	256 return 0;
72bddfad351a * mpzmodule.c: cast some methods to the proper type. Guido van Rossum <guido@python.org> parents: 1257 diff changeset	257 }
12137 5b5581af951c Change traceback error message to "most recent call last" from Guido van Rossum <guido@python.org> parents: 11999 diff changeset	258 err = PyFile_WriteString("Traceback (most recent call last):\n", f);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	259 if (!err)
31739 49ec0d8f08ec Moved tracebackobject to traceback.h, Closes SF Bug #497067 Nicholas Bastin <nick.bastin@gmail.com> parents: 30968 diff changeset	260 err = tb_printinternal((PyTracebackObject *)v, f, limit);
5608 79e49cbce2ef PyFile_WriteString now returns an error indicator instead of calling Guido van Rossum <guido@python.org> parents: 5405 diff changeset	261 return err;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	262 }

Mercurial > cpython-lru_cache-weakref

annotate Python/traceback.c @ 42736:ddefbdbdbcb5 2.5