undefined reference to `__dso_handle' for *.so lib

Question

I try to build my shared object, which linked with to *.a libraries and one *.so object. I'm instantiate 2 singletone classes from my so, which included into static library. See api of them below:

template
class Singleton {
public:
    virtual ~Singleton() {}
    static std::unique_ptr& instance()
    {
        static std::mutex mutex;
        std::lock_guard lock(mutex);
        
        static std::unique_ptr _instance;
        if (_instance == nullptr) {
            _instance.reset(new T);


        }
            return _instance;
        }
}

And second one

class RTCEngine 
        : public IRTCEngine
        , public ISignalingClientObserver
        , public Observable
        , public std::enable_shared_from_this
    {
    public:
        static std::shared_ptr instance()
        {
            static std::mutex mutex;
            std::lock_guard lock(mutex);

            static std::shared_ptr _instance;
            if (_instance == nullptr) {
                _instance.reset(new RTCEngine());
            }
            return _instance;
        }

They called inside my own class, which is inheritated from QObject. Compiling step walkthroug, but I have a linkage errors:

internalconnectionlogick.o: in function `__static_initialization_and_destruction_0(int, int)':
internalconnectionlogick.cpp:(.text+0x1a78): undefined reference to `__dso_handle'
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: internalconnectionlogick.cpp:(.text+0x1a88): undefined reference to `__dso_handle'
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: internalconnectionlogick.cpp:(.text+0x1aac): undefined reference to `__dso_handle'
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: internalconnectionlogick.cpp:(.text+0x1ac4): undefined reference to `__dso_handle'
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: internalconnectionlogick.cpp:(.text+0x1ad8): undefined reference to `__dso_handle'
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: internalconnectionlogick.o:internalconnectionlogick.cpp:(.text+0x1ae8): more undefined references to `__dso_handle' follow
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: libLIBVKS.so.1.0.0: hidden symbol `__dso_handle' isn't defined
/home/user/AuroraOS/mersdk/targets/AuroraOS-4.0.2.89-base-armv7hl.default/opt/cross/bin/armv7hl-meego-linux-gnueabi-ld: final link failed: bad value

As build system I'm using qmake, I build it from qt. Here is pro for my *.so

TARGET = LIBVKS
TEMPLATE = lib
CONFIG += sailfishapp
DEFINES += LIBVKS_LIBRARY
DEFINES += QT_DEPRECATED_WARNINGS

QMAKE_CXXFLAGS_DEBUG = -Wall -fPIC 
QMAKE_CFLAGS_DEBUG = -Wall -fPIC 
QMAKE_LFLAGS_DEBUG += -rdynamic

LIBS += -L$${dependencies_directory}/RtcSdk/lib -lRTCSDK  <- here is with singletones
LIBS += -L$${dependencies_directory}/WebRtc/lib -lwebrtc
LIBS += -L$${dependencies_directory}/ffmpeg/lib -lffmpeg

LIBS += -lpthread -ldl -lglib-2.0 -lgio-2.0 -lgobject-2.0 -latomic -lstdc++
LIBS += -nostartfiles

And here is *.a object which I link, inside my, so, and where I get the problems, Here provided all flags, source files are not included, it's not necessary

    TARGET = RTCSDK
    TEMPLATE = lib
    CONFIG += staticlib debug
    CONFIG += sailfishapp
    LIBS += -lpthread -ldl -lX11 -lglib-2.0 -lgio-2.0 -lgobject-2.0 -lGLEW -lGLU -lGL

I can't solve the problem with dso, because I call singletone clases for inside initialization. How can I build, or link this libraries together for correct work?

undefined reference to `__dso_handle' for *.so lib

0 Answers