Re: [Pyobjc-dev] GNUstep.

[Mirko V. <mi...@ob...>]

Ronald Oussoren <ous...@ci...> ha scritto:

> > How to proceed ?
> Lot's of ifdefs is not the right solution. The code in class-builder.m 
> should use the definitions from objc_support.h instead of the native 
> Apple/NexStep definitions. Hopefully this mechanism solves most of your 
> problems.

Ok, I've modified all the code to use objc_support. There are yet some
GNU_RUNTIME/GNUSTEP but it is much much better now.

The runtime support, apart for bugs and missing objc_addClass() implementation,
should be quit ok, but unfortunately it dumps core:

(gdb) r
Starting program: /usr/local/bin/python dictionary.py
(no debugging symbols found)...(no debugging symbols found)...(no debugging
symbols found)...
Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line
2627 in elfstab_build_psymtabs
Deprecated bfd_read called at
/usr/src/gnu/usr.bin/binutils/gdb/../../../../contrib/gdb/gdb/dbxread.c line
933 in fill_symbuf
(no debugging symbols found)...
Program received signal SIGSEGV, Segmentation fault.
0x805471b in PyObject_Print ()
(gdb) where
#0  0x805471b in PyObject_Print ()
#1  0x80a4dce in PyFile_WriteObject ()
#2  0x8070230 in PyEval_EvalCode ()
#3  0x807246c in PyEval_EvalCodeEx ()
#4  0x806ee79 in PyEval_EvalCode ()
#5  0x8089117 in PyRun_FileExFlags ()
#6  0x80890d2 in PyRun_FileExFlags ()
#7  0x80890a6 in PyRun_FileExFlags ()
#8  0x8088438 in PyRun_SimpleFileExFlags ()
#9  0x8087f54 in PyRun_AnyFileExFlags ()
#10 0x8052c59 in Py_Main ()
#11 0x8052570 in main ()
#12 0x80524cb in _start ()

It prints correctly the class returned by objc.lookUpClass() but it hangs
when it try to print the object.
Any hints where should I start looking ?
Thanks.

> BTW. I noticed GNUstep has a build-option for using a 
> garbage-collector. Using that option might cause problems with 
> subclassing Objective-C classes from Python, the current code depends 
> on reference-counts in both Python and Objective-C to detect if objects 
> are alive.

I know, but I've never used it and it seems to remember that is a bit untested.

-- 
Ciao
Mirko