Re: gdb supported on powerpc-apple-darwin ?

Mario Emmenlauer
2008-08-16T22:07:33Z

Hi,

Dr. Rolf Jansen wrote:
>>>> Which version of FSF gdb does gdb-908 compare to?
>>> Compare in which respect? Which features are you looking for?
>>
>> The question was based on the assumption that there is a common patch
>> base on both forks. If the information exchange is little, it does not
>> make sense to try to compare.
>>
>> I'm not actually missing a specific feature. I have rather experienced
>> bad performance and integration with my favorite GUI, using the mi
>> (actually mi2, I believe) interface. I read that the Apple fork is not
>> completely compatible in respect to this interface, for the sake of
>> better Xcode integration, which made me hope the FSF gdb would work
>> better.
>
> Well you have three options:
>
> 1. if you favourite GUI is open source, then you can try
> to accomodate for the Apples mi dialect there.

Sadly, it isn't. But I called on the developers, lets see what happens.

> OR
>
> 2. you can add in the FSF mi into Apples GDB. This
> sounds more complicated than it is. I did this
> the other way around. I produced an mi for Xcode
> called miX and mixed it into the current FSF
> GDB. With that I can do cross platform debugging
> from within Xcode.
>
> <http://code.google.com/p/xcxdb/>

I saw your post in this regard, quite nice!
It seems a good starting point if I should decide to contribute
to gdb.

> To make a reasonable decision for 1 | 2 | 3, you might first want to
> figure out which MI commands are mis-understood by Apples-gdb or which
> MI results are mis-understood by your favourite GUI.
>
> For this you might want to let your GUI call gdb by the way of a proxy
> shell script. This shell script contains the following lines:
>
> #!/bin/sh
> tee ~/Desktop/gdb-session.in | /usr/bin/gdb --interp=mi2 | tee
> ~/Desktop/gdb-session.out

Thanks, this is indeed the first thing to do. I will check and see whats
going on between the GUI and gdb, and which commands exactly confuse
the former. I already know that these are few, so with some luck I
can even avoid them.

Cheers,

Mario