[racket-dev] Compile racket without native compare-and-swap support?

On 04/30/14 02:07, Matthew Flatt wrote:
> It's been a very long time since I touched a machine where the stack
> grows up. Does changing `c->cont->buf.stack_size` to `c->stack_size`
> work?

I'm not sure:

mkdir xsrc
make xsrc/precomp.h
env XFORM_PRECOMP=yes ../racketcgc  -cqu 
/usr/ports/pobj/racket-6.0-debug/racket-6.0/src/racket/gc2/xform.rkt 
--setup . --cpp "cc -E -I./.. 
-I/usr/ports/pobj/racket-6.0-debug/racket-6.0/src/racket/gc2/../include 
-I/usr/local/include -I/usr/X11R6/include -pthread -I/usr/local/include 
    -DMZ_USES_SHARED_LIB "  --keep-lines -o xsrc/precomp.h 
/usr/ports/pobj/racket-6.0-debug/racket-6.0/src/racket/gc2/precomp.c
Segmentation fault (core dumped)

The output of gdb: 
http://juanfra.info/bl/racket-2014/backtrace-racket-6.0.log

>
> At Wed, 30 Apr 2014 00:21:10 +0200, Juan Francisco Cantero Hurtado wrote:
>> On 04/28/14 21:13, Matthew Flatt wrote:
>>> Sorry --- I now see that `--enable-pthread` is forced for OpenBSD. I
>>> think it should be on by default, but not actually forced, so I've made
>>> that repair.
>>>
>>> More to the point, I've pushed a repair so that CAS is attempted only
>>> when futures or places are enabled.
>>
>> I've compiled racket 6.0 with both patches. Now I see another
>> (unrelated) problem:
>>
>> setjmpup.c: In function 'scheme_uncopy_stack'
>> setjmpup.c:358: error: 'struct Scheme_Cont' has no member named 'buf'
>>
>> http://juanfra.info/bl/racket-2014/racket-6.0-3.log
>>
>>>
>>> At Mon, 28 Apr 2014 20:45:35 +0200, Juan Francisco Cantero Hurtado wrote:
>>>> On 04/28/14 20:08, Matthew Flatt wrote:
>>>>> I think `--enable-pthread` is triggering the attempt to use CAS. Can
>>>>> you leave that one out?
>>>>
>>>> I tried without enable-pthread. I see the same problem
>>>> http://juanfra.info/bl/racket-2014/racket-6.0-2.log
>>>>
>>>>>
>>>>> At Mon, 28 Apr 2014 19:59:10 +0200, Juan Francisco Cantero Hurtado wrote:
>>>>>> On 04/28/14 01:03, Matthew Flatt wrote:
>>>>>>> At Mon, 28 Apr 2014 00:58:48 +0200, Juan Francisco Cantero Hurtado wrote:
>>>>>>>> I'm trying to compile Racket 6.0 on OpenBSD/hppa but the compilation
>>>>>>>> fails because there is not support for CAS on OpenBSD/hppa. Is it
>>>>>>>> possible compile racket on platforms without atomic CAS?.
>>>>>>>
>>>>>>> Does it help to use
>>>>>>>
>>>>>>>      --disable-places --disable-futures
>>>>>>>
>>>>>>> as arguments to `configure`?
>>>>>>
>>>>>> No, I use always both arguments because we don't have support for tls on
>>>>>> OpenBSD. Here is the log of the build:
>>>>>> http://juanfra.info/bl/racket-2014/racket-6.0.log