llvm dev - Nov 2015 - Compiling for AARCH64 (VMA=42)

Hi,

I am trying to compile LLVM for AARCH (VMA=42), here my cmake command:

cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 ..

But I get the following warning:

------------------------------------------------------------------------------------------
CMake Warning:
 Manually-specified variables were not used by the project:

   SANITIZER_AARCH64_VMA
------------------------------------------------------------------------------------------

is it wrong the way I’m defining the SANITIZER_AARCH64_VMA value?

Thanks.
Best,
Simone

Hi Simone,

Can I check- you do have compiler-rt checked out into projects/, right?

James
On Wed, 25 Nov 2015 at 17:20, Simone Atzeni via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hi,
>
> I am trying to compile LLVM for AARCH (VMA=42), here my cmake command:
>
> cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 ..
>
> But I get the following warning:
>
>
>
------------------------------------------------------------------------------------------
> CMake Warning:
>  Manually-specified variables were not used by the project:
>
>    SANITIZER_AARCH64_VMA
>
>
------------------------------------------------------------------------------------------
>
> is it wrong the way I’m defining the SANITIZER_AARCH64_VMA value?
>
> Thanks.
> Best,
> Simone
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20151125/ee5a60c3/attachment.html>

Yes, I do.

Simone
> On Nov 25, 2015, at 10:22, James Molloy <james at jamesmolloy.co.uk>
wrote:
> 
> Hi Simone,
> 
> Can I check- you do have compiler-rt checked out into projects/, right?
> 
> James
> On Wed, 25 Nov 2015 at 17:20, Simone Atzeni via llvm-dev <llvm-dev at
lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote:
> Hi,
> 
> I am trying to compile LLVM for AARCH (VMA=42), here my cmake command:
> 
> cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 ..
> 
> But I get the following warning:
> 
>
------------------------------------------------------------------------------------------
> CMake Warning:
>  Manually-specified variables were not used by the project:
> 
>    SANITIZER_AARCH64_VMA
>
------------------------------------------------------------------------------------------
> 
> is it wrong the way I’m defining the SANITIZER_AARCH64_VMA value?
> 
> Thanks.
> Best,
> Simone
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
<http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20151125/415146a1/attachment.html>

On 25 November 2015 at 17:19, Simone Atzeni via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
> cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 ..
Hi Simone,

That should actually be in CFLAGS:

-DCMAKE_C_FLAGS='-DSANITIZER_AARCH64_VMA=42'
-DCMAKE_CXX_FLAGS='-DSANITIZER_AARCH64_VMA=42'

It's a bit messy, sorry about that, but we're working on making the
VMA settings automatic without flags.

cheers,
--renato

Oh great thanks!

I actually have to do the same for PPC64 (44 and 46 bits).
Right now I am doing it in the same way you do for AARCH, so I am defining a
SANITIZER_PPC64_VMA variable.

The problem is that the check needs to be done at compile time in order to
select for example the right memory mapping in san_platform.h.

Do you guys have already an idea how to automize that? 

Best,
Simone
> On Nov 25, 2015, at 10:29, Renato Golin <renato.golin at linaro.org>
wrote:
> 
> On 25 November 2015 at 17:19, Simone Atzeni via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> cmake -G "Ninja" -D SANITIZER_AARCH64_VMA=42 ..
> 
> Hi Simone,
> 
> That should actually be in CFLAGS:
> 
> -DCMAKE_C_FLAGS='-DSANITIZER_AARCH64_VMA=42'
> -DCMAKE_CXX_FLAGS='-DSANITIZER_AARCH64_VMA=42'
> 
> It's a bit messy, sorry about that, but we're working on making the
> VMA settings automatic without flags.
> 
> cheers,
> --renato