Exemple #1
0
static jobject de_robv_android_xposed_XposedBridge_cloneToSubclassNative(JNIEnv* env, jclass clazz, jobject objIndirect, jclass clzIndirect) {
    Object* obj = (Object*) dvmDecodeIndirectRef(dvmThreadSelf(), objIndirect);
    ClassObject* clz = (ClassObject*) dvmDecodeIndirectRef(dvmThreadSelf(), clzIndirect);

    jobject copyIndirect = env->AllocObject(clzIndirect);
    if (copyIndirect == NULL)
        return NULL;

    Object* copy = (Object*) dvmDecodeIndirectRef(dvmThreadSelf(), copyIndirect);
    size_t size = obj->clazz->objectSize;
    size_t offset = sizeof(Object);
    memcpy((char*)copy + offset, (char*)obj + offset, size - offset);

    if (IS_CLASS_FLAG_SET(clz, CLASS_ISFINALIZABLE))
        dvmSetFinalizable(copy);

    return copyIndirect;
}
Exemple #2
0
/*
 * Create a copy of an object, for Object.clone().
 *
 * We use the size actually allocated, rather than obj->clazz->objectSize,
 * because the latter doesn't work for array objects.
 */
Object* dvmCloneObject(Object* obj, int flags)
{
    assert(dvmIsValidObject(obj));
    ClassObject* clazz = obj->clazz;

    /* Class.java shouldn't let us get here (java.lang.Class is final
     * and does not implement Clonable), but make extra sure.
     * A memcpy() clone will wreak havoc on a ClassObject's "innards".
     */
    assert(!dvmIsTheClassClass(clazz));

    size_t size;
    if (IS_CLASS_FLAG_SET(clazz, CLASS_ISARRAY)) {
        size = dvmArrayObjectSize((ArrayObject *)obj);
    } else {
        size = clazz->objectSize;
    }

    Object* copy = (Object*)dvmMalloc(size, flags);
    copy->tag = 0;
    if (copy == NULL)
        return NULL;

    DVM_OBJECT_INIT(copy, clazz);
    size_t offset = sizeof(Object);
    /* Copy instance data.  We assume memcpy copies by words. */
    memcpy((char*)copy + offset, (char*)obj + offset, size - offset);

    /* Mark the clone as finalizable if appropriate. */
    if (IS_CLASS_FLAG_SET(clazz, CLASS_ISFINALIZABLE)) {
        dvmSetFinalizable(copy);
    }

    dvmTrackAllocation(clazz, size);    /* notify DDMS */

    pthread_mutex_lock(&gDvm.s_mtx);
    if(gDvm.newObjHook){
        gDvm.newObjHook(copy);
    }
    pthread_mutex_unlock(&gDvm.s_mtx);

    return copy;
}