llvm dev - Oct 2016 - [ASAN] Getting ASAN working on a non pthread baremetal OS

Hello,

 

I'm working on getting the address sanitizer working on a baremetal OS for
an embedded ARM device.

 

It seems like ASAN was built with an expectation that POSIX calls and
pthreads will be present in the underlying environment. And on linking with
libclang_rt.asan-aarch64.a; I am getting a whole bunch of missing symbols
(as expected).

 

What I would like to know is, what would I have to do to build ASAN without
pthread support? Is it just a matter of playing around with the
asan_interceptors.cc and the sanitizer_common_interceptors.cc? From what
I've read online there doesn't seem to be a switch to just turn off
pthreads
and TLS.

 

Thank you in advance for your assistance in this matter.

 

Regards,

Nikhil Gupta

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Hi Gupta,

You have asked this question in another list already, I suggest we continue
there.

--kcc

On Mon, Oct 24, 2016 at 8:32 AM, Gupta Nikhil via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hello,
>
>
>
> I’m working on getting the address sanitizer working on a baremetal OS for
> an embedded ARM device.
>
>
>
> It seems like ASAN was built with an expectation that POSIX calls and
> pthreads will be present in the underlying environment. And on linking with
*libclang_rt.asan-aarch64.a;
> *I am getting a whole bunch of missing symbols (as expected).
>
>
>
> What I would like to know is, what would I have to do to build ASAN
> without pthread support? Is it just a matter of playing around with the
> asan_interceptors.cc and the sanitizer_common_interceptors.cc? From what
> I’ve read online there doesn’t seem to be a switch to just turn off
> pthreads and TLS.
>
>
>
> Thank you in advance for your assistance in this matter.
>
>
>
> Regards,
>
> Nikhil Gupta
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
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