llvm dev - Feb 2017 - Using ASAN on C code called from other languages

Hi all,

I have haskell code that calls into C code and i'd like to compile the C
code with ASAN. I've managed to convince the build system to compile the
C code with '-fsanitize=address -g' (so that if I get a link errors of
the ASAN library isn't linked) and then also managed to link libasan,
but when my trivial test program with an obvious out-of-bounds access
run, I don't get the ASAN error I was expecting.

Is there some ASAN initialisation step that isn't happening?

Any clues appreciated.

Cheers,
Erik
-- 
----------------------------------------------------------------------
Erik de Castro Lopo
http://www.mega-nerd.com/

I don't know anything about haskell, but if you post a minimal reproducer
here
we *may* be able to help.

--kcc

On Sun, Feb 5, 2017 at 11:35 PM, Erik de Castro Lopo via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> Hi all,
>
> I have haskell code that calls into C code and i'd like to compile the
C
> code with ASAN. I've managed to convince the build system to compile
the
> C code with '-fsanitize=address -g' (so that if I get a link errors
of
> the ASAN library isn't linked) and then also managed to link libasan,
> but when my trivial test program with an obvious out-of-bounds access
> run, I don't get the ASAN error I was expecting.
>
> Is there some ASAN initialisation step that isn't happening?
>
> Any clues appreciated.
>
> Cheers,
> Erik
> --
> ----------------------------------------------------------------------
> Erik de Castro Lopo
> http://www.mega-nerd.com/
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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Kostya Serebryany wrote:
> I don't know anything about haskell, but if you post a minimal
reproducer
> here
> we *may* be able to help.
Its just so happens that I do have something here:

    https://github.com/erikd-ambiata/haskell-sanitize

The Readme should have all the information you need. Any problems,
please let mw know.

Cheers,
Erik
-- 
----------------------------------------------------------------------
Erik de Castro Lopo
http://www.mega-nerd.com/