예제 #1
0
GOTO_TARGET_END

GOTO_TARGET(invokeDirect, bool methodCallRange)
    {
        u2 thisReg;

        vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
        ref = FETCH(1);             /* method ref */
        vdst = FETCH(2);            /* 4 regs -or- first reg */

        EXPORT_PC();

        if (methodCallRange) {
            ILOGV("|invoke-direct-range args=%d @0x%04x {regs=v%d-v%d}",
                vsrc1, ref, vdst, vdst+vsrc1-1);
            thisReg = vdst;
        } else {
            ILOGV("|invoke-direct args=%d @0x%04x {regs=0x%04x %x}",
                vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
            thisReg = vdst & 0x0f;
        }
        if (!checkForNull((Object*) GET_REGISTER(thisReg)))
            GOTO_exceptionThrown();

        methodToCall = dvmDexGetResolvedMethod(methodClassDex, ref);
        if (methodToCall == NULL) {
            methodToCall = dvmResolveMethod(curMethod->clazz, ref,
                            METHOD_DIRECT);
            if (methodToCall == NULL) {
                ILOGV("+ unknown direct method\n");     // should be impossible
                GOTO_exceptionThrown();
            }
        }
        GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
    }
예제 #2
0
GOTO_TARGET_END

GOTO_TARGET(invokeInterface, bool methodCallRange)
    {
        Object* thisPtr;
        ClassObject* thisClass;

        EXPORT_PC();

        vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
        ref = FETCH(1);             /* method ref */
        vdst = FETCH(2);            /* 4 regs -or- first reg */

        /*
         * The object against which we are executing a method is always
         * in the first argument.
         */
        if (methodCallRange) {
            assert(vsrc1 > 0);
            ILOGV("|invoke-interface-range args=%d @0x%04x {regs=v%d-v%d}",
                vsrc1, ref, vdst, vdst+vsrc1-1);
            thisPtr = (Object*) GET_REGISTER(vdst);
        } else {
            assert((vsrc1>>4) > 0);
            ILOGV("|invoke-interface args=%d @0x%04x {regs=0x%04x %x}",
                vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
            thisPtr = (Object*) GET_REGISTER(vdst & 0x0f);
        }

        if (!checkForNull(thisPtr))
            GOTO_exceptionThrown();

        thisClass = thisPtr->clazz;

        /*
         * Given a class and a method index, find the Method* with the
         * actual code we want to execute.
         */
        methodToCall = dvmFindInterfaceMethodInCache(thisClass, ref, curMethod,
                        methodClassDex);
#if defined(WITH_JIT) && defined(MTERP_STUB)
        self->callsiteClass = thisClass;
        self->methodToCall = methodToCall;
#endif
        if (methodToCall == NULL) {
            assert(dvmCheckException(self));
            GOTO_exceptionThrown();
        }

        GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
    }
예제 #3
0
GOTO_TARGET_END

GOTO_TARGET(invokeSuper, bool methodCallRange)
    {
        Method* baseMethod;
        u2 thisReg;

        EXPORT_PC();

        vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
        ref = FETCH(1);             /* method ref */
        vdst = FETCH(2);            /* 4 regs -or- first reg */

        if (methodCallRange) {
            ILOGV("|invoke-super-range args=%d @0x%04x {regs=v%d-v%d}",
                vsrc1, ref, vdst, vdst+vsrc1-1);
            thisReg = vdst;
        } else {
            ILOGV("|invoke-super args=%d @0x%04x {regs=0x%04x %x}",
                vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
            thisReg = vdst & 0x0f;
        }
        /* impossible in well-formed code, but we must check nevertheless */
        if (!checkForNull((Object*) GET_REGISTER(thisReg)))
            GOTO_exceptionThrown();

        /*
         * Resolve the method.  This is the correct method for the static
         * type of the object.  We also verify access permissions here.
         * The first arg to dvmResolveMethod() is just the referring class
         * (used for class loaders and such), so we don't want to pass
         * the superclass into the resolution call.
         */
        baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref);
        if (baseMethod == NULL) {
            baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL);
            if (baseMethod == NULL) {
                ILOGV("+ unknown method or access denied\n");
                GOTO_exceptionThrown();
            }
        }

        /*
         * Combine the object we found with the vtable offset in the
         * method's class.
         *
         * We're using the current method's class' superclass, not the
         * superclass of "this".  This is because we might be executing
         * in a method inherited from a superclass, and we want to run
         * in that class' superclass.
         */
        if (baseMethod->methodIndex >= curMethod->clazz->super->vtableCount) {
            /*
             * Method does not exist in the superclass.  Could happen if
             * superclass gets updated.
             */
            dvmThrowException("Ljava/lang/NoSuchMethodError;",
                baseMethod->name);
            GOTO_exceptionThrown();
        }
        methodToCall = curMethod->clazz->super->vtable[baseMethod->methodIndex];
#if 0
        if (dvmIsAbstractMethod(methodToCall)) {
            dvmThrowException("Ljava/lang/AbstractMethodError;",
                "abstract method not implemented");
            GOTO_exceptionThrown();
        }
#else
        assert(!dvmIsAbstractMethod(methodToCall) ||
            methodToCall->nativeFunc != NULL);
#endif
        LOGVV("+++ base=%s.%s super-virtual=%s.%s\n",
            baseMethod->clazz->descriptor, baseMethod->name,
            methodToCall->clazz->descriptor, methodToCall->name);
        assert(methodToCall != NULL);

        GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
    }
예제 #4
0
GOTO_TARGET_END


GOTO_TARGET(invokeVirtual, bool methodCallRange)
    {
        Method* baseMethod;
        Object* thisPtr;

        EXPORT_PC();

        vsrc1 = INST_AA(inst);      /* AA (count) or BA (count + arg 5) */
        ref = FETCH(1);             /* method ref */
        vdst = FETCH(2);            /* 4 regs -or- first reg */

        /*
         * The object against which we are executing a method is always
         * in the first argument.
         */
        if (methodCallRange) {
            assert(vsrc1 > 0);
            ILOGV("|invoke-virtual-range args=%d @0x%04x {regs=v%d-v%d}",
                vsrc1, ref, vdst, vdst+vsrc1-1);
            thisPtr = (Object*) GET_REGISTER(vdst);
        } else {
            assert((vsrc1>>4) > 0);
            ILOGV("|invoke-virtual args=%d @0x%04x {regs=0x%04x %x}",
                vsrc1 >> 4, ref, vdst, vsrc1 & 0x0f);
            thisPtr = (Object*) GET_REGISTER(vdst & 0x0f);
        }

        if (!checkForNull(thisPtr))
            GOTO_exceptionThrown();

        /*
         * Resolve the method.  This is the correct method for the static
         * type of the object.  We also verify access permissions here.
         */
        baseMethod = dvmDexGetResolvedMethod(methodClassDex, ref);
        if (baseMethod == NULL) {
            baseMethod = dvmResolveMethod(curMethod->clazz, ref,METHOD_VIRTUAL);
            if (baseMethod == NULL) {
                ILOGV("+ unknown method or access denied\n");
                GOTO_exceptionThrown();
            }
        }

        /*
         * Combine the object we found with the vtable offset in the
         * method.
         */
        assert(baseMethod->methodIndex < thisPtr->clazz->vtableCount);
        methodToCall = thisPtr->clazz->vtable[baseMethod->methodIndex];

#if 0
        if (dvmIsAbstractMethod(methodToCall)) {
            /*
             * This can happen if you create two classes, Base and Sub, where
             * Sub is a sub-class of Base.  Declare a protected abstract
             * method foo() in Base, and invoke foo() from a method in Base.
             * Base is an "abstract base class" and is never instantiated
             * directly.  Now, Override foo() in Sub, and use Sub.  This
             * Works fine unless Sub stops providing an implementation of
             * the method.
             */
            dvmThrowException("Ljava/lang/AbstractMethodError;",
                "abstract method not implemented");
            GOTO_exceptionThrown();
        }
#else
        assert(!dvmIsAbstractMethod(methodToCall) ||
            methodToCall->nativeFunc != NULL);
#endif

        LOGVV("+++ base=%s.%s virtual[%d]=%s.%s\n",
            baseMethod->clazz->descriptor, baseMethod->name,
            (u4) baseMethod->methodIndex,
            methodToCall->clazz->descriptor, methodToCall->name);
        assert(methodToCall != NULL);

#if 0
        if (vsrc1 != methodToCall->insSize) {
            LOGW("WRONG METHOD: base=%s.%s virtual[%d]=%s.%s\n",
                baseMethod->clazz->descriptor, baseMethod->name,
                (u4) baseMethod->methodIndex,
                methodToCall->clazz->descriptor, methodToCall->name);
            //dvmDumpClass(baseMethod->clazz);
            //dvmDumpClass(methodToCall->clazz);
            dvmDumpAllClasses(0);
        }
#endif

        GOTO_invokeMethod(methodCallRange, methodToCall, vsrc1, vdst);
    }
예제 #5
0
GOTO_TARGET(filledNewArray, bool methodCallRange)
    {
        ClassObject* arrayClass;
        ArrayObject* newArray;
        u4* contents;
        char typeCh;
        int i;
        u4 arg5;

        EXPORT_PC();

        ref = FETCH(1);             /* class ref */
        vdst = FETCH(2);            /* first 4 regs -or- range base */

        if (methodCallRange) {
            vsrc1 = INST_AA(inst);  /* #of elements */
            arg5 = -1;              /* silence compiler warning */
            ILOGV("|filled-new-array-range args=%d @0x%04x {regs=v%d-v%d}",
                vsrc1, ref, vdst, vdst+vsrc1-1);
        } else {
            arg5 = INST_A(inst);
            vsrc1 = INST_B(inst);   /* #of elements */
            ILOGV("|filled-new-array args=%d @0x%04x {regs=0x%04x %x}",
                vsrc1, ref, vdst, arg5);
        }

        /*
         * Resolve the array class.
         */
        arrayClass = dvmDexGetResolvedClass(methodClassDex, ref);
        if (arrayClass == NULL) {
            arrayClass = dvmResolveClass(curMethod->clazz, ref, false);
            if (arrayClass == NULL)
                GOTO_exceptionThrown();
        }
        /*
        if (!dvmIsArrayClass(arrayClass)) {
            dvmThrowException("Ljava/lang/RuntimeError;",
                "filled-new-array needs array class");
            GOTO_exceptionThrown();
        }
        */
        /* verifier guarantees this is an array class */
        assert(dvmIsArrayClass(arrayClass));
        assert(dvmIsClassInitialized(arrayClass));

        /*
         * Create an array of the specified type.
         */
        LOGVV("+++ filled-new-array type is '%s'\n", arrayClass->descriptor);
        typeCh = arrayClass->descriptor[1];
        if (typeCh == 'D' || typeCh == 'J') {
            /* category 2 primitives not allowed */
            dvmThrowException("Ljava/lang/RuntimeError;",
                "bad filled array req");
            GOTO_exceptionThrown();
        } else if (typeCh != 'L' && typeCh != '[' && typeCh != 'I') {
            /* TODO: requires multiple "fill in" loops with different widths */
            LOGE("non-int primitives not implemented\n");
            dvmThrowException("Ljava/lang/InternalError;",
                "filled-new-array not implemented for anything but 'int'");
            GOTO_exceptionThrown();
        }

        newArray = dvmAllocArrayByClass(arrayClass, vsrc1, ALLOC_DONT_TRACK);
        if (newArray == NULL)
            GOTO_exceptionThrown();

        /*
         * Fill in the elements.  It's legal for vsrc1 to be zero.
         */
        contents = (u4*) newArray->contents;
        if (methodCallRange) {
            for (i = 0; i < vsrc1; i++)
                contents[i] = GET_REGISTER(vdst+i);
        } else {
            assert(vsrc1 <= 5);
            if (vsrc1 == 5) {
                contents[4] = GET_REGISTER(arg5);
                vsrc1--;
            }
            for (i = 0; i < vsrc1; i++) {
                contents[i] = GET_REGISTER(vdst & 0x0f);
                vdst >>= 4;
            }
        }

        retval.l = newArray;
    }