Bug / Crash Android: DLL Not found: cannot locate symbol "_Unwind_Resume"

[kingshijie]

Hi there,

The lib was built using NDK r16b. This is our Application.mk:

Code:

NDK_TOOLCHAIN_VERSION := clang
APP_OPTIM := release
APP_PLATFORM := android-17
APP_STL := c++_shared
APP_CPPFLAGS += -std=c++11
APP_ABI := armeabi-v7a arm64-v8a x86

excerpt from Android.mk:

Code:

LOCAL_LDLIBS += -latomic
LOCAL_CPP_FEATURES += exceptions
LOCAL_CPP_FEATURES += rtti
LOCAL_ARM_NEON := true

We've tested building with 2019.2.9f1, 2019.3.0f6, and 2020.1.0b3, runs fine in Galaxy S4 and Note 10 Lite.  "_Unwind_Resume" is a symbol related to exception handling, and the lib requires exception support, so my take is that for some reason exception-handling related code is being stripped.

What are your build settings?

Hi, josemendez.

We have just encountered the same problem, I have searched a lot and seems lot of talks about ndk mismatches, so i looked into the libOni.so as the Post(https://github.com/google/oboe/issues/966) indicates, the _Unwind_Resume was not found just as I assumed. I tested with Unity2019.4.8f1, and it works on most 'runtime' and only fails for few(sorry can't tell more details about our 'runtime').

As far as I know, the Unity 2019 has upgrade its ndk to r19(https://docs.unity3d.com/Manual/android-sdksetup.html), so can you please compile the .so with r19 and send me a test libOni.so to see if we can fix this issue, it will helps a lot, thank you!