ports/72014: Eclipse doesn't work (SigBus 10) if it has been built with GTK

[Jeremy Messenger]

On Fri, 02 Sep 2005 12:17:48 -0500, Jeremy Messenger <mezz7 at cox.net> wrote:

> On Fri, 02 Sep 2005 04:40:15 -0500, Panagiotis Astithas <past at ebs.gr>  
> wrote:
>
>> I'm forwarding this to the people who are responsible for this.
>>
>> Daniel Roethlisberger wrote:
>>> I have just double checked on my pentium-m box, I can confirm that
>>> adding -mno-sse2 does solve the problem for me (at least as far as I  
>>> can
>>> tell, as there is no definitive way to reproduce the problem).
>>>  Compiling x11-toolkits/gtk20 with CPUTYPE?=pentium-m and CFLAGS=-O  
>>> -pipe
>>> results in an unstable eclipse, while compiling gtk20 with the same
>>> CPUTYPE but CFLAGS=-O -pipe -mno-sse2 saves the day, giving me a stable
>>> eclipse.
>>>  Can we add some kind of -mno-sse2 hack to the GTK port for the time
>>> being, or is there a better solution?
>>
>>
>> Some background:
>>
>> In PR ports/72014 it was reported a long time ago that eclipse/gtk  
>> crashes and this was tracked down to non-standard compiler  
>> optimizations when building gtk. There have been similar bug reports  
>> filed against the eclipse and gcc bug databases. Some gcc people have  
>> tracked it down to incorrect stack alignment (see ports/72014 for the  
>> pointers) and have received reports that using -mno-sse2 fixed it.  
>> Daniel has verified that this seems to help our case also.
>
> It's a nice find the locate that SSE2 is causing the problem.  
> Mono/gtk-sharp have the same problems and we always have to tell them to  
> not tweak the CPUTYPE. After look at our PR and GCC's PRs, looks like  
> might be either GCC or our libc bug.
>
>> Therefore the question is, should we force -mno-sse2 to the compiler  
>> flags for the gtk ports? I would expect less bug reports from people  
>> who compile gtk apps with non-standard CFLAGS, at least.
>
> It's good idea, I would like to add -mno-sse2 too. Here's patch, so let  
> me know if I don't understand it correct or/and my English isn't right.

I have committed it in both MC and offical ports tree.

Cheers,
Mezz

> http://people.freebsd.org/~mezz/diff/gtk20.diff
>
> Keep in mind, this patch is for MC. After that go in MC and I will put  
> in offical one too.
>
> Cheers,
> Mezz
>
>> Cheers,
>>
>> Panagiotis


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