llvm dev - Sep 2015 - LLVM Runtime Code Generation on Android

Hi,

Is there anybody out there that is experienced with run-time code
generation on an android device?
Is it even possible to achieve this?

I compiled both llvm and clang for x64 android tablet and everything seemed
fine until i tried to call exposed generated function through my native
code: it gave an error that indicating I dont have rights to execute code
in this memory block.(I will add the exact error when i access my
development machine. )

My tablet is not rooted so I can not be sure that is caused by memory
protection. But I would expect llvm/clang to handle memory rights that
generated code resides in. right?

Thanks,
Ali
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Yup, there's even a library for it included in AOSP:

https://android.googlesource.com/platform/external/vixl/


On Sun, Sep 6, 2015 at 4:02 PM, Ali Demiröz <llvm-dev at lists.llvm.org>
wrote:
> Hi,
>
> Is there anybody out there that is experienced with run-time code
> generation on an android device?
> Is it even possible to achieve this?
>
> I compiled both llvm and clang for x64 android tablet and everything
> seemed fine until i tried to call exposed generated function through my
> native code: it gave an error that indicating I dont have rights to execute
> code in this memory block.(I will add the exact error when i access my
> development machine. )
>
> My tablet is not rooted so I can not be sure that is caused by memory
> protection. But I would expect llvm/clang to handle memory rights that
> generated code resides in. right?
>
> Thanks,
> Ali
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
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Exception previously mentioned : "signal SIGSEGV: address access protected
(fault address: 0x7f5ef23010)"
Architecture : AARCH64

@Bruce Thanks, I didn't know such library exist. Is this library somehow
related to LLVM? Actually my question was if it is possible to generate and
run code with LLVM on Android(AARCH64).


On Mon, Sep 7, 2015 at 3:03 PM, Bruce Hoult <bruce at hoult.org> wrote:
> Yup, there's even a library for it included in AOSP:
>
> https://android.googlesource.com/platform/external/vixl/
>
>
> On Sun, Sep 6, 2015 at 4:02 PM, Ali Demiröz <llvm-dev at
lists.llvm.org>
> wrote:
>
>> Hi,
>>
>> Is there anybody out there that is experienced with run-time code
>> generation on an android device?
>> Is it even possible to achieve this?
>>
>> I compiled both llvm and clang for x64 android tablet and everything
>> seemed fine until i tried to call exposed generated function through my
>> native code: it gave an error that indicating I dont have rights to
execute
>> code in this memory block.(I will add the exact error when i access my
>> development machine. )
>>
>> My tablet is not rooted so I can not be sure that is caused by memory
>> protection. But I would expect llvm/clang to handle memory rights that
>> generated code resides in. right?
>>
>> Thanks,
>> Ali
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>>
>
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