Re: gdb for ObjC

[David Relson]

Lars,

Getting source code is the easy part.  Getting it to build is harder.

Years ago, someone created an unofficial Objective-C patch for gdb-4.17 
which worked quite well.  When gdb-4.18 came out, I was able to adapt it 
and get a usable gdb-objc-4.18.  When gdb-5.0 came out, the adaptation was 
much harder because of significant changes to gdb's 
architecture.  None-the-less I was able to create a usable gdb-objc-5.0.  I 
was unable to apply some parts of the 4.18 patch to 5.0, so I left them 
out.  The debugger was usable and useful.

A year or two back, Apple officially signed its gdb patches to the FSF.  It 
is hoped that one day the Objective-C support will be merged into a gdb 
release and this work of unofficial patching will no longer be called for.

If you want the 4.18 and 5.0 patches, they're available at 
ftp://ftp.osagesoftware.com/pub/outgoing/

David

P.S. As I'm not presently developing Objective-C code, I haven't updated 
them for gdb-5.1 or later releases.



At 02:42 PM 7/23/02, Lars wrote:
> I got that answer on darwin-development@lists.apple.com:
>
> ----- Forwarded by Lars Sonchocky-Helldorf/BBDO-InterOne/DE on 23.07.2002
> 20:40 -----
>
>
> Perrone Alessandro <alex@unive.it>
> 23.07.2002 12:16
>
>
>         To:     darwin-development@lists.apple.com
>         cc:     Lars.Sonchocky-Helldorf@bbdo-interone.de
>         Subject:        RE: Building Apple's gdb on Linux
>
> Hi
> >I am asking this because I am looking for an version of gdb that supports
> >Objective-C. Since Apple's gdb supports ObjC very well, this idea came to
> >my mind.
> If you compile gdb 4.16, it support OBJC very well.
> To be sure to compile the right version, connect to ftp.swarm.org and
> go to the /pub/swarm/src/needed directory and download the
> gdb-objc-4.16.tar.gz.
> Hope this help.
>   ALEX
>
>
>
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