Hi,
I managed to generate a set of SIP files which compile and link
without errors, but when I try to actually instantiate one of the
objects (actually, it is a a widget from the Okteta library), I end up
crashing in siplib.c like this:
5502 in /build/buildd/sip4-4.13.3/siplib/siplib.c
(gdb)
Program received signal SIGSEGV, Segmentation fault.
createClassType (client=client@entry=0x7fffdd5adcc0
<sipModuleAPI_okteta>, ctd=ctd@entry=
0x7fffdd5b1e40 <sipTypeDef_okteta_Okteta_Character>,
mod_dict=mod_dict@entry=
{'__name__': 'PyOkteta4.okteta', 'Okteta': <sip.wrappertype at
remote 0x14ec480>, '__doc__': None, '__package__': None})
at /build/buildd/sip4-4.13.3/siplib/siplib.c:5502
5502 in /build/buildd/sip4-4.13.3/siplib/siplib.c
(gdb)
Looking at the source code, we are in this loop:
5488 for (sup = ctd->ctd_supers, i = 0; i < nrsupers; ++i, ++sup)
5489 {
5490 PyObject *st;
5491 sipTypeDef *sup_td = getGeneratedType(sup, client);
5492
5493 /*
5494 * Initialise the super-class if necessary. It
will always be in
5495 * the same module if it needs doing.
5496 */
5497 if (createClassType(client, (sipClassTypeDef
*)sup_td, mod_dict) < 0)
5498 goto relbases;
5499
5500 st = (PyObject *)sipTypeAsPyTypeObject(sup_td);
5501
5502 Py_INCREF(st);
5503 PyTuple_SET_ITEM(bases, i, st);
5504 }
Now, i'm a bit out of my comfort zone here ;-), but "st" is NULL and
the immediate cause of the crash, and looking back nrsupers should be
3 because:
(gdb) p ctd.ctd_supers[0]
$86 = {
sc_type = 24,
sc_module = 0,
sc_flag = 1
}
(gdb) p ctd.ctd_supers[1]
$87 = {
sc_type = 65535,
sc_module = 255,
sc_flag = 1
}
(gdb) p ctd.ctd_supers[2]
$88 = {
sc_type = 0,
sc_module = 0,
sc_flag = 0
}
(gdb) p ctd.ctd_supers @ 3
$95 = {0x7fffdd5ad41c <supers_Okteta_Character>, 0x0,
0x7fffdd3797b0 <init_Okteta_Character(sipSimpleWrapper*,
PyObject*, PyObject*, PyObject**, PyObject**, PyObject**)>}
I'm guessing I've screwed up the bindings in some way to do with the
superclasses of Character, but since that is simply QChar, I'm not
sure what to look at next. Reproduction just requires to try and add
an Okteta::ByteArrayColumnView using designer, but I am guessing that
the error is a very basic one on my part. Any nudges/hints much
appreciated!
Thanks, Shaheed
P.S. The .msp file and the generated .sip files can be found at:
http://quickgit.kde.org/index.php?p=kate.git&a=tree&hb=31e3a2c995e9981e8cdf40b4973aedd1f39d893c&h=d15d85b0b1843713b0d591a611a8840c81feba12&f=kate%2Fplugins%2Fpate%2Fsrc%2Fsip
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