Merge changes from topic "libvndksupport_cp"

extern struct android_namespace_t* android_get_exported_namespace(const char*);

static const char* namespace_name = NULL;

static struct android_namespace_t* get_vendor_namespace() {

    const char* namespace_names[] = {"sphal", "default", NULL};

    static struct android_namespace_t* vendor_namespace = NULL;

    if (vendor_namespace == NULL) {

        int name_idx = 0;

        while (namespace_names[name_idx] != NULL) {

            vendor_namespace = android_get_exported_namespace(namespace_names[name_idx]);

            if (vendor_namespace != NULL) {

                namespace_name = namespace_names[name_idx];

                break;

            }

            name_idx++;

        }

    }

    return vendor_namespace;

}

void* android_load_sphal_library(const char* name, int flag) {

    struct android_namespace_t* sphal_namespace = android_get_exported_namespace("sphal");

    if (sphal_namespace != NULL) {

    struct android_namespace_t* vendor_namespace = get_vendor_namespace();

    if (vendor_namespace != NULL) {

        const android_dlextinfo dlextinfo = {

            .flags = ANDROID_DLEXT_USE_NAMESPACE, .library_namespace = sphal_namespace,

            .flags = ANDROID_DLEXT_USE_NAMESPACE, .library_namespace = vendor_namespace,

        };

        void* handle = android_dlopen_ext(name, flag, &dlextinfo);

        if (!handle) {

            ALOGE(

                "Could not load %s from sphal namespace: %s. ",

                name, dlerror());

            ALOGE("Could not load %s from %s namespace: %s.", name, namespace_name, dlerror());

        }

        return handle;

    } else {

        ALOGI(

            "sphal namespace is not configured for this process. "

            "Loading %s from the current namespace instead.",

            name);

        ALOGD("Loading %s from current namespace instead of sphal namespace.", name);

        return dlopen(name, flag);

    }

}