Thanks!

On Thu, May 25, 2017 at 5:24 PM, 'Evgenii Stepanov' via
address-sanitizer <address-sanitizer@googlegroups.com> wrote:
> Yes, you need this fix:
> https://android-review.googlesource.com/#/c/318859/
>
>
> On Wed, May 24, 2017 at 11:41 AM, Francis Ricci <francisjri...@gmail.com> 
> wrote:
>> Appears to work fine on android 6, so my guess is that 7 introduces a
>> bug of some sort.
>>
>> On Wed, May 24, 2017 at 11:57 AM, Francis Ricci <francisjri...@gmail.com> 
>> wrote:
>>> Do you have experience using the wrap property? When I attempt to use it,
>>> even for very simple wrappers on system apps, it crashes the entire phone
>>> due to a failure to restat the file descriptor table, which appears to
>>> result from a failure to run CreateFromFd on a pipe (S_ISFIFO) in the
>>> zygote. This occurs even on system apps (tried
>>> wrap.com.google.android.youtube, in addition to my own apps), and even when
>>> the wrapper is as simple as I could come up with (for example, 'setprop
>>> wrap.com.google.android.youtube "exec $@" '). It reproduces for me on a 5X
>>> and a 6P running android 7.1.2. Both are rooted, with selinux set to
>>> permissive.
>>>
>>> I could try flashing my phone with an older version of android, if this is
>>> likely to be a bug in android itself.
>>>
>>> On Thursday, May 18, 2017 at 3:48:39 PM UTC-4, Evgeniy Stepanov wrote:
>>>>
>>>> Hi,
>>>>
>>>> There is a system property that lets you prepend anything to the
>>>> zygote command line for a specific application, "wrap.<app-name>". It
>>>> requires a rooted device, but does not require remounting system r/w.
>>>>
>>>> In theory, this requirement could be relaxed by allowing wrapping apps
>>>> even on a locked device based on the app manifest - some property like
>>>> "debuggable". That requires changing android platform source.
>>>>
>>>> https://source.android.com/devices/tech/debug/asan#using_the_wrap_property
>>>>
>>>> On Thu, May 18, 2017 at 8:29 AM, Francis Ricci <franci...@gmail.com>
>>>> wrote:
>>>> > Hi all!
>>>> >
>>>> > Historically, I've always used ASan on a rooted/flashed device, as the
>>>> > asan_device_setup script requires root access. Is it possible (even in
>>>> > theory, or with some extra work in the codebase) to run ASan on a
>>>> > non-rooted
>>>> > device? I know you can for a simple C++ binary, since you can just run
>>>> > that
>>>> > via the command-line with LD_PRELOAD. But I know things are quite a bit
>>>> > more
>>>> > complex for apps, since you can't over-write app_process without a r/w
>>>> > system partition. What I've found online so far mostly points to shadow
>>>> > memory and libc issues.
>>>> >
>>>> > It would be quite valuable for me to be able to run ASan on apps on
>>>> > non-rooted phones (even if I could only get a subset of checks to work),
>>>> > so
>>>> > I'd be willing to put in a fair amount of work to make it happen, if
>>>> > it's
>>>> > the sort of thing that could be possible.
>>>> >
>>>> > Thanks!
>>>> > Francis
>>>> >
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>>>
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