Re: Objective-C gdb (was: Re: Problem with AppKit/Fonts?)

[Richard Frith-Macdonald]

On Friday, July 11, 2003, at 09:23 PM, Adam Fedor wrote:

> > I've just installed the CVS version of gdb, but the Objective-C
> > support is pretty useless since the "next" command does not work
> > properly.
>
> Can someone give me access to a ix86 machine so I can try to fix this? 
> Other people have reported this and I can't replicate it on my ppc. It 
> would be a bummer for 6.0 to come out and have it not work with 
> Objective-C.

I use gdb on ix86 machines ... and I have no problem with the 'next' 
command.
Perhaps what's needed is a short test program to run the debugger on, 
and
an explanation of how to reproduce the problem with 'next'

The one thing I do find annoying with the current objc support in gdb 
is that
the 'print' command doesn't handle methods returning char* nicely.
What I mean is, if 'x' is a variable of type 'char*' pointing to the 
string "hello"
then 'print x' will display the numeric value of the pointer followed 
by the
string "hello", but if x is an NNString, 'print [x cString]' or 'print 
x UTF8String'
will just print the numeric value of the resulting pointer, not the 
content of
the string.
Of course you can work around that using an explicit cast
'print (char*)[x UTF8String]'  but it's still annoying.