[LLVMdev] ASan testing on Android

[Evgeniy Stepanov]

On Fri, Oct 18, 2013 at 3:27 AM, Greg Fitzgerald <garious at gmail.com> wrote:

> Some updates:
>
> First, thanks so much for creating these test suites.  Troubleshooting
> is going very quickly!
>
>
> > There is some flakiness in SanitizerCommon.SpinMutex test.
>
> Yes, I'm seeing that too.  SpinMutexTry as well.  Should these be disabled?
>

There is an issue in the spinlock on ARM: it's implemented with plain
non-atomic loads and stores. It seems that android ndk does not have the
atomics we need for this, and we did not have time to do an asm
implementation yet.


>
>
> > ARM JellyBean works over here.
>
> I found a configuration that works well on JB 4.1.2 and 4.2.2.  The
> trick is to build the ASan *runtime* with *CMake*.  If you build the
> runtime using the Make build, the test suite falls over.
>
> Also, lots of tests fail when running on the Android Emulator.  This
> is a convenient environment for testing, but is there any hope of
> getting all of ASan working on it?  I see that simple cases such as
> detecting use-after-free and stack-buffer-overflow work on the
> emulator.
>

We did not run the tests on emulator. Not sure what would it take to fix
the tests there. It can't be super hard, though.


>
>
> Regarding:
> https://code.google.com/p/address-sanitizer/wiki/Android
>
> I see that the Make build puts the ASan runtime into its install
> directory, and the test suite from the CMake build uses the local copy
> of the ASan runtime for testing.
>
> To reproduce the error I'm seeing, run the Android CMake build in the
> Release+Asserts directory of the Make build.  Install the ASan runtime
> from the Make build and then run the AsanTests test suite.
>

Do you mean it's a compile-time issue with the path in Android.cmake?



>
> Thanks,
> Greg
>
> On Wed, Oct 16, 2013 at 11:55 PM, Evgeniy Stepanov <eugenis at google.com>
> wrote:
> > ARM JellyBean works over here. There is some flakiness in
> > SanitizerCommon.SpinMutex test.
> >
> >
> > On Wed, Oct 16, 2013 at 11:36 PM, Greg Fitzgerald <garious at gmail.com>
> wrote:
> >>
> >> I'm following these instructions with the latest code from llvm.org:
> >>
> >>
> >>
> https://code.google.com/p/address-sanitizer/source/browse/trunk/build/scripts/slave/buildbot_cmake.sh
> >>
> >> Of SanitizerTest, AsanTest and AsanNoinstTest, I cannot get any of the
> >> 3 to pass all its tests.  I've tried using an Android device running
> >> JellyBean as well as the latest Android Emulator (20130917, api level
> >> 18).  What run-time environments are known to work?
> >>
> >> Thanks,
> >> Greg
> >> _______________________________________________
> >> LLVM Developers mailing list
> >> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >
> >
>
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