[Mono-dev] Error building mono on x86

[Rafael Teixeira]

AFAIR your x64 mono will jit to 32 bits your x86 marked DLL if the main
application is also marked as x86 , and then it will p/invoke properly your
32 bit .so, although in Linux where to place .so files is a bit more
complex.

On Wed, Feb 18, 2015, 07:16 Rafael Mueller - Inventti <
rafael at inventti.com.br> wrote:

>  Hi,
>
>
>  I forgot to say, but I'm trying to build it as x86 on a x64 machine -
> the compilation as x64 worked (without the --host)
>
>
>  Compilation on a x86 box also worked.
>
>
>  This problem happens when I compile as x86 on a x64 box.
>
>
>  Thanks,
>
> Rafael
>
>
>   ------------------------------
> *From:* Miguel de Icaza <miguel at xamarin.com>
> *Sent:* Wednesday, February 18, 2015 12:21 AM
> *To:* Rafael Mueller - Inventti
> *Cc:* mono-devel-list at lists.ximian.com
> *Subject:* Re: [Mono-dev] Error building mono on x86
>
>  Hello,
>
>  I am not sure why you are passing a --host command line option.
> Configure should be able to figure this out on its own.
>
>  Miguel
>
> On Tue, Feb 17, 2015 at 6:29 PM, Rafael Mueller - Inventti <
> rafael at inventti.com.br> wrote:
>
>>  Hi there,
>>
>>
>>  My (c#) application (compiled on windows, as x86) needs to load a 32
>> bits library (.so), so I must compile mono as x86, right?
>>
>>
>>  I've downloaded the 3.12 source and configured it with
>>
>> ./configure --host=i386-pc-linux-gnu
>>
>>
>>  But it always fails to compile:
>>
>> In file included from mono-context.c:8:0:
>> mono-context.c: In function ‘mono_sigctx_to_monoctx’:
>> ../../mono/utils/mono-sigcontext.h:144:74: error: ‘REG_EAX’ undeclared
>> (first use in this function)
>>   #define UCONTEXT_REG_EAX(ctx) (((ucontext_t*)(ctx))->uc_mcontext.gregs
>> [REG_EAX])
>>
>>
>>  I've tried to add AC_GNU_SOURCE on configure.ac and also compiling with
>> CFLAGS="$CFLAGS -D_GNU_SOURCE" but I still can't compile it.
>>
>>
>>  I'm doing anything wrong? Any other advice to compile it on x86?
>>
>>
>>  I've also tried with mono 3.2.3 and 3.6, without success.
>>
>>
>>  Kind regards,
>>
>> Rafael
>>
>> _______________________________________________
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>> Mono-devel-list at lists.ximian.com
>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
>>
>>
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