AddressSanitizerOnAndroidO

Current aosp/o-preview and aosp/master branches support running applications under AddressSanitizer on fully locked production devices.

See this patch for the details of the implementation. To use this feature,

1. add "android:debuggable" to the application manifest
2. add libclang_rt.asan-${arch}-android.so library found in the NDK to the native libraries directory
3. add wrap.sh file (see contents below) to the same directory.

Note that multi-arch APKs need to repeat steps 2 and 3 for each architecture. In steps 2 and 3, substitute ${arch} with the target architecture name, which can be found by running readelf -d native.so | grep libclang_rt on any native library in your application. Note that architecture name is not the same as Android ABI name.

wrap.sh

#!/system/bin/sh
HERE="$(cd "$(dirname "$0")" && pwd)"
export ASAN_OPTIONS=log_to_syslog=false,allow_user_segv_handler=1
export LD_PRELOAD=$HERE/libclang_rt.asan-${arch}-android.so
$@