Merge "disable CFI on some stagefright_foundation internals" into rvc-dev am: 4aac5779

#undef HIDE

#define HIDE __attribute__((visibility("hidden")))

// The internals of AUnion cause problems with CFI

#undef  NO_CFI

#define NO_CFI __attribute__((no_sanitize("cfi")))

namespace android {

/**

     * \param args      arbitrary arguments for constructor

     */

    template<typename T, typename ...Args>

    inline static void emplace(size_t totalSize, T *addr, Args&&... args) {

    inline static void NO_CFI emplace(size_t totalSize, T *addr, Args&&... args) {

        new(addr)T(std::forward<Args>(args)...);

        // clear slack space - this is not technically required

        constexpr size_t size = sizeof(T);

    template<

            typename T, typename ...Args,

            typename=typename std::enable_if<is_one_of<T, void, Ts...>::value>::type>

    inline void emplace(Args&&... args) {

    inline void NO_CFI emplace(Args&&... args) {

        _AUnion_impl::emplace(

                sizeof(_type), reinterpret_cast<T*>(&mValue), std::forward<Args>(args)...);

    }