Re: NSString retain crash

[Luboš Doležel]

Hi,

turns out that everything works as expected when I specify

-fconstant-string-class=NSConstantString

I'm not sure what the difference to the default NXConstantString is, but 
it works now.

Luboš

On 15.10.2012 21:38, Luboš Doležel wrote:
> Hi,
>
> - gnustep-base 1.2.40 (Gentoo -r1)
> - libobjc2 1.6.1
> - clang 3.1
> - Gentoo Linux
> - not yet, I'll do that
>
> With the old GCC ObjC runtime, the same code says "NXConstantString
> doesn't recognize retain" and it crashes as well. I don't think that's
> correct either, but the new runtime is what bothers me more.
>
> Luboš
>
> On 10/15/2012 08:45 PM, Ivan Vučica wrote:
> > Hi,
> >
> > Just a bit of information collecting:
> > - which version of GNUstep Base are you using (or, which svn revision
> > if applicable)?
> > - which runtime are you using (gcc libobjc, libobjc2, or something
> > else) and which version (or svn revision)?
> > - which compiler and version?
> > - which OS (a Linux-based OS, or a BSD, or something else)?
> > - if you are not using latest svn revision of GNUstep Base, did you
> > try that?
> >
> > Info above may help someone reproduce the problem or suggest a fix.
> > Looks nasty to me, but is probably easy to fix.
> >
> > Regards,
> >
> > Ivan Vučica
> > via phone
> >
> > 15. 10. 2012., u 12:04, Luboš Doležel <address@hidden> napisao:
> >
> > > Hi,
> > >
> > > I have a problem where setting NSCell's value to a string crashes.
> > > I've tracked to problem down to a simple test that reproduces the crash:
> > >
> > > NSString* str = @"test";
> > > [str retain];
> > >
> > > Backtrace:
> > >
> > > #0  objc_msg_lookup_internal (receiver=<optimized out>,
> > > selector=<optimized out>, receiver=<optimized out>,
> > > selector=<optimized out>, sender=<optimized out>) at sendmsg2.c:66
> > > #1  objc_msg_lookup (receiver=<optimized out>, selector=<optimized
> > > out>) at sendmsg2.c:398
> > > #2  0x0000000000400796 in main () at str-retain.m:6
> > >
> > > Why does the retain call cause a crash? I've learned that such
> > > constant strings don't use refcounting internally, but I don't think
> > > it should crash anyway.
> > >
> > > Thanks!
> > > --
> > > Luboš Doležel
> > >
> > >
> > > _______________________________________________
> > > Discuss-gnustep mailing list
> > > address@hidden
> > > https://lists.gnu.org/mailman/listinfo/discuss-gnustep
>
>
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--
Luboš Doležel