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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "class_linker.h"
     18 #include "common_test.h"
     19 #include "dex_file.h"
     20 #include "gtest/gtest.h"
     21 #include "indirect_reference_table.h"
     22 #include "jni_internal.h"
     23 #include "mem_map.h"
     24 #include "mirror/art_method-inl.h"
     25 #include "mirror/class-inl.h"
     26 #include "mirror/class_loader.h"
     27 #include "mirror/object_array-inl.h"
     28 #include "mirror/object-inl.h"
     29 #include "mirror/stack_trace_element.h"
     30 #include "runtime.h"
     31 #include "ScopedLocalRef.h"
     32 #include "scoped_thread_state_change.h"
     33 #include "thread.h"
     34 #include "UniquePtr.h"
     35 
     36 extern "C" JNIEXPORT jint JNICALL Java_MyClassNatives_bar(JNIEnv*, jobject, jint count) {
     37   return count + 1;
     38 }
     39 
     40 extern "C" JNIEXPORT jint JNICALL Java_MyClassNatives_sbar(JNIEnv*, jclass, jint count) {
     41   return count + 1;
     42 }
     43 
     44 namespace art {
     45 
     46 class JniCompilerTest : public CommonTest {
     47  protected:
     48   void CompileForTest(jobject class_loader, bool direct,
     49                       const char* method_name, const char* method_sig) {
     50     ScopedObjectAccess soa(Thread::Current());
     51     // Compile the native method before starting the runtime
     52     mirror::Class* c = class_linker_->FindClass("LMyClassNatives;",
     53                                                 soa.Decode<mirror::ClassLoader*>(class_loader));
     54     mirror::ArtMethod* method;
     55     if (direct) {
     56       method = c->FindDirectMethod(method_name, method_sig);
     57     } else {
     58       method = c->FindVirtualMethod(method_name, method_sig);
     59     }
     60     ASSERT_TRUE(method != NULL) << method_name << " " << method_sig;
     61     if (method->GetEntryPointFromCompiledCode() != NULL) {
     62       return;
     63     }
     64     CompileMethod(method);
     65     ASSERT_TRUE(method->GetEntryPointFromCompiledCode() != NULL) << method_name << " " << method_sig;
     66   }
     67 
     68   void SetUpForTest(bool direct, const char* method_name, const char* method_sig,
     69                     void* native_fnptr) {
     70     // Initialize class loader and compile method when runtime not started.
     71     if (!runtime_->IsStarted()) {
     72       {
     73         ScopedObjectAccess soa(Thread::Current());
     74         class_loader_ = LoadDex("MyClassNatives");
     75       }
     76       CompileForTest(class_loader_, direct, method_name, method_sig);
     77       // Start runtime.
     78       Thread::Current()->TransitionFromSuspendedToRunnable();
     79       bool started = runtime_->Start();
     80       CHECK(started);
     81     }
     82     // JNI operations after runtime start.
     83     env_ = Thread::Current()->GetJniEnv();
     84     jklass_ = env_->FindClass("MyClassNatives");
     85     ASSERT_TRUE(jklass_ != NULL) << method_name << " " << method_sig;
     86 
     87     if (direct) {
     88       jmethod_ = env_->GetStaticMethodID(jklass_, method_name, method_sig);
     89     } else {
     90       jmethod_ = env_->GetMethodID(jklass_, method_name, method_sig);
     91     }
     92     ASSERT_TRUE(jmethod_ != NULL) << method_name << " " << method_sig;
     93 
     94     if (native_fnptr != NULL) {
     95       JNINativeMethod methods[] = { { method_name, method_sig, native_fnptr } };
     96       ASSERT_EQ(JNI_OK, env_->RegisterNatives(jklass_, methods, 1))
     97               << method_name << " " << method_sig;
     98     } else {
     99       env_->UnregisterNatives(jklass_);
    100     }
    101 
    102     jmethodID constructor = env_->GetMethodID(jklass_, "<init>", "()V");
    103     jobj_ = env_->NewObject(jklass_, constructor);
    104     ASSERT_TRUE(jobj_ != NULL) << method_name << " " << method_sig;
    105   }
    106 
    107  public:
    108   static jclass jklass_;
    109   static jobject jobj_;
    110   static jobject class_loader_;
    111 
    112 
    113  protected:
    114   JNIEnv* env_;
    115   jmethodID jmethod_;
    116 };
    117 
    118 jclass JniCompilerTest::jklass_;
    119 jobject JniCompilerTest::jobj_;
    120 jobject JniCompilerTest::class_loader_;
    121 
    122 int gJava_MyClassNatives_foo_calls = 0;
    123 void Java_MyClassNatives_foo(JNIEnv* env, jobject thisObj) {
    124   // 1 = thisObj
    125   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    126   EXPECT_EQ(kNative, Thread::Current()->GetState());
    127   Locks::mutator_lock_->AssertNotHeld(Thread::Current());
    128   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    129   EXPECT_TRUE(thisObj != NULL);
    130   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    131   gJava_MyClassNatives_foo_calls++;
    132 }
    133 
    134 TEST_F(JniCompilerTest, CompileAndRunNoArgMethod) {
    135   TEST_DISABLED_FOR_PORTABLE();
    136   SetUpForTest(false, "foo", "()V",
    137                reinterpret_cast<void*>(&Java_MyClassNatives_foo));
    138 
    139   EXPECT_EQ(0, gJava_MyClassNatives_foo_calls);
    140   env_->CallNonvirtualVoidMethod(jobj_, jklass_, jmethod_);
    141   EXPECT_EQ(1, gJava_MyClassNatives_foo_calls);
    142   env_->CallNonvirtualVoidMethod(jobj_, jklass_, jmethod_);
    143   EXPECT_EQ(2, gJava_MyClassNatives_foo_calls);
    144 }
    145 
    146 TEST_F(JniCompilerTest, CompileAndRunIntMethodThroughStub) {
    147   TEST_DISABLED_FOR_PORTABLE();
    148   SetUpForTest(false, "bar", "(I)I",
    149                NULL /* calling through stub will link with &Java_MyClassNatives_bar */);
    150 
    151   ScopedObjectAccess soa(Thread::Current());
    152   std::string reason;
    153   ASSERT_TRUE(
    154       Runtime::Current()->GetJavaVM()->LoadNativeLibrary("", soa.Decode<mirror::ClassLoader*>(class_loader_),
    155                                                          reason)) << reason;
    156 
    157   jint result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 24);
    158   EXPECT_EQ(25, result);
    159 }
    160 
    161 TEST_F(JniCompilerTest, CompileAndRunStaticIntMethodThroughStub) {
    162   TEST_DISABLED_FOR_PORTABLE();
    163   SetUpForTest(true, "sbar", "(I)I",
    164                NULL /* calling through stub will link with &Java_MyClassNatives_sbar */);
    165 
    166   ScopedObjectAccess soa(Thread::Current());
    167   std::string reason;
    168   ASSERT_TRUE(
    169       Runtime::Current()->GetJavaVM()->LoadNativeLibrary("", soa.Decode<mirror::ClassLoader*>(class_loader_),
    170                                                          reason)) << reason;
    171 
    172   jint result = env_->CallStaticIntMethod(jklass_, jmethod_, 42);
    173   EXPECT_EQ(43, result);
    174 }
    175 
    176 int gJava_MyClassNatives_fooI_calls = 0;
    177 jint Java_MyClassNatives_fooI(JNIEnv* env, jobject thisObj, jint x) {
    178   // 1 = thisObj
    179   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    180   EXPECT_EQ(kNative, Thread::Current()->GetState());
    181   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    182   EXPECT_TRUE(thisObj != NULL);
    183   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    184   gJava_MyClassNatives_fooI_calls++;
    185   return x;
    186 }
    187 
    188 TEST_F(JniCompilerTest, CompileAndRunIntMethod) {
    189   TEST_DISABLED_FOR_PORTABLE();
    190   SetUpForTest(false, "fooI", "(I)I",
    191                reinterpret_cast<void*>(&Java_MyClassNatives_fooI));
    192 
    193   EXPECT_EQ(0, gJava_MyClassNatives_fooI_calls);
    194   jint result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 42);
    195   EXPECT_EQ(42, result);
    196   EXPECT_EQ(1, gJava_MyClassNatives_fooI_calls);
    197   result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 0xCAFED00D);
    198   EXPECT_EQ(static_cast<jint>(0xCAFED00D), result);
    199   EXPECT_EQ(2, gJava_MyClassNatives_fooI_calls);
    200 }
    201 
    202 int gJava_MyClassNatives_fooII_calls = 0;
    203 jint Java_MyClassNatives_fooII(JNIEnv* env, jobject thisObj, jint x, jint y) {
    204   // 1 = thisObj
    205   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    206   EXPECT_EQ(kNative, Thread::Current()->GetState());
    207   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    208   EXPECT_TRUE(thisObj != NULL);
    209   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    210   gJava_MyClassNatives_fooII_calls++;
    211   return x - y;  // non-commutative operator
    212 }
    213 
    214 TEST_F(JniCompilerTest, CompileAndRunIntIntMethod) {
    215   TEST_DISABLED_FOR_PORTABLE();
    216   SetUpForTest(false, "fooII", "(II)I",
    217                reinterpret_cast<void*>(&Java_MyClassNatives_fooII));
    218 
    219   EXPECT_EQ(0, gJava_MyClassNatives_fooII_calls);
    220   jint result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 99, 10);
    221   EXPECT_EQ(99 - 10, result);
    222   EXPECT_EQ(1, gJava_MyClassNatives_fooII_calls);
    223   result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 0xCAFEBABE,
    224                                          0xCAFED00D);
    225   EXPECT_EQ(static_cast<jint>(0xCAFEBABE - 0xCAFED00D), result);
    226   EXPECT_EQ(2, gJava_MyClassNatives_fooII_calls);
    227 }
    228 
    229 int gJava_MyClassNatives_fooJJ_calls = 0;
    230 jlong Java_MyClassNatives_fooJJ(JNIEnv* env, jobject thisObj, jlong x, jlong y) {
    231   // 1 = thisObj
    232   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    233   EXPECT_EQ(kNative, Thread::Current()->GetState());
    234   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    235   EXPECT_TRUE(thisObj != NULL);
    236   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    237   gJava_MyClassNatives_fooJJ_calls++;
    238   return x - y;  // non-commutative operator
    239 }
    240 
    241 TEST_F(JniCompilerTest, CompileAndRunLongLongMethod) {
    242   TEST_DISABLED_FOR_PORTABLE();
    243   SetUpForTest(false, "fooJJ", "(JJ)J",
    244                reinterpret_cast<void*>(&Java_MyClassNatives_fooJJ));
    245 
    246   EXPECT_EQ(0, gJava_MyClassNatives_fooJJ_calls);
    247   jlong a = 0x1234567890ABCDEFll;
    248   jlong b = 0xFEDCBA0987654321ll;
    249   jlong result = env_->CallNonvirtualLongMethod(jobj_, jklass_, jmethod_, a, b);
    250   EXPECT_EQ(a - b, result);
    251   EXPECT_EQ(1, gJava_MyClassNatives_fooJJ_calls);
    252   result = env_->CallNonvirtualLongMethod(jobj_, jklass_, jmethod_, b, a);
    253   EXPECT_EQ(b - a, result);
    254   EXPECT_EQ(2, gJava_MyClassNatives_fooJJ_calls);
    255 }
    256 
    257 int gJava_MyClassNatives_fooDD_calls = 0;
    258 jdouble Java_MyClassNatives_fooDD(JNIEnv* env, jobject thisObj, jdouble x, jdouble y) {
    259   // 1 = thisObj
    260   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    261   EXPECT_EQ(kNative, Thread::Current()->GetState());
    262   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    263   EXPECT_TRUE(thisObj != NULL);
    264   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    265   gJava_MyClassNatives_fooDD_calls++;
    266   return x - y;  // non-commutative operator
    267 }
    268 
    269 TEST_F(JniCompilerTest, CompileAndRunDoubleDoubleMethod) {
    270   TEST_DISABLED_FOR_PORTABLE();
    271   SetUpForTest(false, "fooDD", "(DD)D",
    272                reinterpret_cast<void*>(&Java_MyClassNatives_fooDD));
    273 
    274   EXPECT_EQ(0, gJava_MyClassNatives_fooDD_calls);
    275   jdouble result = env_->CallNonvirtualDoubleMethod(jobj_, jklass_, jmethod_,
    276                                                     99.0, 10.0);
    277   EXPECT_EQ(99.0 - 10.0, result);
    278   EXPECT_EQ(1, gJava_MyClassNatives_fooDD_calls);
    279   jdouble a = 3.14159265358979323846;
    280   jdouble b = 0.69314718055994530942;
    281   result = env_->CallNonvirtualDoubleMethod(jobj_, jklass_, jmethod_, a, b);
    282   EXPECT_EQ(a - b, result);
    283   EXPECT_EQ(2, gJava_MyClassNatives_fooDD_calls);
    284 }
    285 
    286 int gJava_MyClassNatives_fooJJ_synchronized_calls = 0;
    287 jlong Java_MyClassNatives_fooJJ_synchronized(JNIEnv* env, jobject thisObj, jlong x, jlong y) {
    288   // 1 = thisObj
    289   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    290   EXPECT_EQ(kNative, Thread::Current()->GetState());
    291   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    292   EXPECT_TRUE(thisObj != NULL);
    293   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    294   gJava_MyClassNatives_fooJJ_synchronized_calls++;
    295   return x | y;
    296 }
    297 
    298 TEST_F(JniCompilerTest, CompileAndRun_fooJJ_synchronized) {
    299   TEST_DISABLED_FOR_PORTABLE();
    300   SetUpForTest(false, "fooJJ_synchronized", "(JJ)J",
    301                reinterpret_cast<void*>(&Java_MyClassNatives_fooJJ_synchronized));
    302 
    303   EXPECT_EQ(0, gJava_MyClassNatives_fooJJ_synchronized_calls);
    304   jlong a = 0x1000000020000000ULL;
    305   jlong b = 0x00ff000000aa0000ULL;
    306   jlong result = env_->CallNonvirtualLongMethod(jobj_, jklass_, jmethod_, a, b);
    307   EXPECT_EQ(a | b, result);
    308   EXPECT_EQ(1, gJava_MyClassNatives_fooJJ_synchronized_calls);
    309 }
    310 
    311 int gJava_MyClassNatives_fooIOO_calls = 0;
    312 jobject Java_MyClassNatives_fooIOO(JNIEnv* env, jobject thisObj, jint x, jobject y,
    313                             jobject z) {
    314   // 3 = this + y + z
    315   EXPECT_EQ(3U, Thread::Current()->NumStackReferences());
    316   EXPECT_EQ(kNative, Thread::Current()->GetState());
    317   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    318   EXPECT_TRUE(thisObj != NULL);
    319   EXPECT_TRUE(env->IsInstanceOf(thisObj, JniCompilerTest::jklass_));
    320   gJava_MyClassNatives_fooIOO_calls++;
    321   switch (x) {
    322     case 1:
    323       return y;
    324     case 2:
    325       return z;
    326     default:
    327       return thisObj;
    328   }
    329 }
    330 
    331 TEST_F(JniCompilerTest, CompileAndRunIntObjectObjectMethod) {
    332   TEST_DISABLED_FOR_PORTABLE();
    333   SetUpForTest(false, "fooIOO",
    334                "(ILjava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
    335                reinterpret_cast<void*>(&Java_MyClassNatives_fooIOO));
    336 
    337   EXPECT_EQ(0, gJava_MyClassNatives_fooIOO_calls);
    338   jobject result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 0, NULL, NULL);
    339   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    340   EXPECT_EQ(1, gJava_MyClassNatives_fooIOO_calls);
    341 
    342   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 0, NULL, jklass_);
    343   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    344   EXPECT_EQ(2, gJava_MyClassNatives_fooIOO_calls);
    345   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 1, NULL, jklass_);
    346   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    347   EXPECT_EQ(3, gJava_MyClassNatives_fooIOO_calls);
    348   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 2, NULL, jklass_);
    349   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    350   EXPECT_EQ(4, gJava_MyClassNatives_fooIOO_calls);
    351 
    352   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 0, jklass_, NULL);
    353   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    354   EXPECT_EQ(5, gJava_MyClassNatives_fooIOO_calls);
    355   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 1, jklass_, NULL);
    356   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    357   EXPECT_EQ(6, gJava_MyClassNatives_fooIOO_calls);
    358   result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, 2, jklass_, NULL);
    359   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    360   EXPECT_EQ(7, gJava_MyClassNatives_fooIOO_calls);
    361 }
    362 
    363 int gJava_MyClassNatives_fooSII_calls = 0;
    364 jint Java_MyClassNatives_fooSII(JNIEnv* env, jclass klass, jint x, jint y) {
    365   // 1 = klass
    366   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    367   EXPECT_EQ(kNative, Thread::Current()->GetState());
    368   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    369   EXPECT_TRUE(klass != NULL);
    370   EXPECT_TRUE(env->IsInstanceOf(JniCompilerTest::jobj_, klass));
    371   gJava_MyClassNatives_fooSII_calls++;
    372   return x + y;
    373 }
    374 
    375 TEST_F(JniCompilerTest, CompileAndRunStaticIntIntMethod) {
    376   TEST_DISABLED_FOR_PORTABLE();
    377   SetUpForTest(true, "fooSII", "(II)I",
    378                reinterpret_cast<void*>(&Java_MyClassNatives_fooSII));
    379 
    380   EXPECT_EQ(0, gJava_MyClassNatives_fooSII_calls);
    381   jint result = env_->CallStaticIntMethod(jklass_, jmethod_, 20, 30);
    382   EXPECT_EQ(50, result);
    383   EXPECT_EQ(1, gJava_MyClassNatives_fooSII_calls);
    384 }
    385 
    386 int gJava_MyClassNatives_fooSDD_calls = 0;
    387 jdouble Java_MyClassNatives_fooSDD(JNIEnv* env, jclass klass, jdouble x, jdouble y) {
    388   // 1 = klass
    389   EXPECT_EQ(1U, Thread::Current()->NumStackReferences());
    390   EXPECT_EQ(kNative, Thread::Current()->GetState());
    391   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    392   EXPECT_TRUE(klass != NULL);
    393   EXPECT_TRUE(env->IsInstanceOf(JniCompilerTest::jobj_, klass));
    394   gJava_MyClassNatives_fooSDD_calls++;
    395   return x - y;  // non-commutative operator
    396 }
    397 
    398 TEST_F(JniCompilerTest, CompileAndRunStaticDoubleDoubleMethod) {
    399   TEST_DISABLED_FOR_PORTABLE();
    400   SetUpForTest(true, "fooSDD", "(DD)D",
    401                reinterpret_cast<void*>(&Java_MyClassNatives_fooSDD));
    402 
    403   EXPECT_EQ(0, gJava_MyClassNatives_fooSDD_calls);
    404   jdouble result = env_->CallStaticDoubleMethod(jklass_, jmethod_, 99.0, 10.0);
    405   EXPECT_EQ(99.0 - 10.0, result);
    406   EXPECT_EQ(1, gJava_MyClassNatives_fooSDD_calls);
    407   jdouble a = 3.14159265358979323846;
    408   jdouble b = 0.69314718055994530942;
    409   result = env_->CallStaticDoubleMethod(jklass_, jmethod_, a, b);
    410   EXPECT_EQ(a - b, result);
    411   EXPECT_EQ(2, gJava_MyClassNatives_fooSDD_calls);
    412 }
    413 
    414 int gJava_MyClassNatives_fooSIOO_calls = 0;
    415 jobject Java_MyClassNatives_fooSIOO(JNIEnv* env, jclass klass, jint x, jobject y,
    416                              jobject z) {
    417   // 3 = klass + y + z
    418   EXPECT_EQ(3U, Thread::Current()->NumStackReferences());
    419   EXPECT_EQ(kNative, Thread::Current()->GetState());
    420   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    421   EXPECT_TRUE(klass != NULL);
    422   EXPECT_TRUE(env->IsInstanceOf(JniCompilerTest::jobj_, klass));
    423   gJava_MyClassNatives_fooSIOO_calls++;
    424   switch (x) {
    425     case 1:
    426       return y;
    427     case 2:
    428       return z;
    429     default:
    430       return klass;
    431   }
    432 }
    433 
    434 
    435 TEST_F(JniCompilerTest, CompileAndRunStaticIntObjectObjectMethod) {
    436   TEST_DISABLED_FOR_PORTABLE();
    437   SetUpForTest(true, "fooSIOO",
    438                "(ILjava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
    439                reinterpret_cast<void*>(&Java_MyClassNatives_fooSIOO));
    440 
    441   EXPECT_EQ(0, gJava_MyClassNatives_fooSIOO_calls);
    442   jobject result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, NULL, NULL);
    443   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    444   EXPECT_EQ(1, gJava_MyClassNatives_fooSIOO_calls);
    445 
    446   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, NULL, jobj_);
    447   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    448   EXPECT_EQ(2, gJava_MyClassNatives_fooSIOO_calls);
    449   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 1, NULL, jobj_);
    450   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    451   EXPECT_EQ(3, gJava_MyClassNatives_fooSIOO_calls);
    452   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 2, NULL, jobj_);
    453   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    454   EXPECT_EQ(4, gJava_MyClassNatives_fooSIOO_calls);
    455 
    456   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, jobj_, NULL);
    457   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    458   EXPECT_EQ(5, gJava_MyClassNatives_fooSIOO_calls);
    459   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 1, jobj_, NULL);
    460   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    461   EXPECT_EQ(6, gJava_MyClassNatives_fooSIOO_calls);
    462   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 2, jobj_, NULL);
    463   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    464   EXPECT_EQ(7, gJava_MyClassNatives_fooSIOO_calls);
    465 }
    466 
    467 int gJava_MyClassNatives_fooSSIOO_calls = 0;
    468 jobject Java_MyClassNatives_fooSSIOO(JNIEnv* env, jclass klass, jint x, jobject y, jobject z) {
    469   // 3 = klass + y + z
    470   EXPECT_EQ(3U, Thread::Current()->NumStackReferences());
    471   EXPECT_EQ(kNative, Thread::Current()->GetState());
    472   EXPECT_EQ(Thread::Current()->GetJniEnv(), env);
    473   EXPECT_TRUE(klass != NULL);
    474   EXPECT_TRUE(env->IsInstanceOf(JniCompilerTest::jobj_, klass));
    475   gJava_MyClassNatives_fooSSIOO_calls++;
    476   switch (x) {
    477     case 1:
    478       return y;
    479     case 2:
    480       return z;
    481     default:
    482       return klass;
    483   }
    484 }
    485 
    486 TEST_F(JniCompilerTest, CompileAndRunStaticSynchronizedIntObjectObjectMethod) {
    487   TEST_DISABLED_FOR_PORTABLE();
    488   SetUpForTest(true, "fooSSIOO",
    489                "(ILjava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;",
    490                reinterpret_cast<void*>(&Java_MyClassNatives_fooSSIOO));
    491 
    492   EXPECT_EQ(0, gJava_MyClassNatives_fooSSIOO_calls);
    493   jobject result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, NULL, NULL);
    494   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    495   EXPECT_EQ(1, gJava_MyClassNatives_fooSSIOO_calls);
    496 
    497   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, NULL, jobj_);
    498   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    499   EXPECT_EQ(2, gJava_MyClassNatives_fooSSIOO_calls);
    500   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 1, NULL, jobj_);
    501   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    502   EXPECT_EQ(3, gJava_MyClassNatives_fooSSIOO_calls);
    503   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 2, NULL, jobj_);
    504   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    505   EXPECT_EQ(4, gJava_MyClassNatives_fooSSIOO_calls);
    506 
    507   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 0, jobj_, NULL);
    508   EXPECT_TRUE(env_->IsSameObject(jklass_, result));
    509   EXPECT_EQ(5, gJava_MyClassNatives_fooSSIOO_calls);
    510   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 1, jobj_, NULL);
    511   EXPECT_TRUE(env_->IsSameObject(jobj_, result));
    512   EXPECT_EQ(6, gJava_MyClassNatives_fooSSIOO_calls);
    513   result = env_->CallStaticObjectMethod(jklass_, jmethod_, 2, jobj_, NULL);
    514   EXPECT_TRUE(env_->IsSameObject(NULL, result));
    515   EXPECT_EQ(7, gJava_MyClassNatives_fooSSIOO_calls);
    516 }
    517 
    518 void Java_MyClassNatives_throwException(JNIEnv* env, jobject) {
    519   jclass c = env->FindClass("java/lang/RuntimeException");
    520   env->ThrowNew(c, "hello");
    521 }
    522 
    523 TEST_F(JniCompilerTest, ExceptionHandling) {
    524   TEST_DISABLED_FOR_PORTABLE();
    525   {
    526     ASSERT_FALSE(runtime_->IsStarted());
    527     ScopedObjectAccess soa(Thread::Current());
    528     class_loader_ = LoadDex("MyClassNatives");
    529 
    530     // all compilation needs to happen before Runtime::Start
    531     CompileForTest(class_loader_, false, "foo", "()V");
    532     CompileForTest(class_loader_, false, "throwException", "()V");
    533     CompileForTest(class_loader_, false, "foo", "()V");
    534   }
    535   // Start runtime to avoid re-initialization in SetupForTest.
    536   Thread::Current()->TransitionFromSuspendedToRunnable();
    537   bool started = runtime_->Start();
    538   CHECK(started);
    539 
    540   gJava_MyClassNatives_foo_calls = 0;
    541 
    542   // Check a single call of a JNI method is ok
    543   SetUpForTest(false, "foo", "()V", reinterpret_cast<void*>(&Java_MyClassNatives_foo));
    544   env_->CallNonvirtualVoidMethod(jobj_, jklass_, jmethod_);
    545   EXPECT_EQ(1, gJava_MyClassNatives_foo_calls);
    546   EXPECT_FALSE(Thread::Current()->IsExceptionPending());
    547 
    548   // Get class for exception we expect to be thrown
    549   ScopedLocalRef<jclass> jlre(env_, env_->FindClass("java/lang/RuntimeException"));
    550   SetUpForTest(false, "throwException", "()V",
    551                reinterpret_cast<void*>(&Java_MyClassNatives_throwException));
    552   // Call Java_MyClassNatives_throwException (JNI method that throws exception)
    553   env_->CallNonvirtualVoidMethod(jobj_, jklass_, jmethod_);
    554   EXPECT_EQ(1, gJava_MyClassNatives_foo_calls);
    555   EXPECT_TRUE(env_->ExceptionCheck() == JNI_TRUE);
    556   ScopedLocalRef<jthrowable> exception(env_, env_->ExceptionOccurred());
    557   env_->ExceptionClear();
    558   EXPECT_TRUE(env_->IsInstanceOf(exception.get(), jlre.get()));
    559 
    560   // Check a single call of a JNI method is ok
    561   SetUpForTest(false, "foo", "()V", reinterpret_cast<void*>(&Java_MyClassNatives_foo));
    562   env_->CallNonvirtualVoidMethod(jobj_, jklass_, jmethod_);
    563   EXPECT_EQ(2, gJava_MyClassNatives_foo_calls);
    564 }
    565 
    566 jint Java_MyClassNatives_nativeUpCall(JNIEnv* env, jobject thisObj, jint i) {
    567   if (i <= 0) {
    568     // We want to check raw Object*/Array* below
    569     ScopedObjectAccess soa(env);
    570 
    571     // Build stack trace
    572     jobject internal = Thread::Current()->CreateInternalStackTrace(soa);
    573     jobjectArray ste_array = Thread::InternalStackTraceToStackTraceElementArray(env, internal);
    574     mirror::ObjectArray<mirror::StackTraceElement>* trace_array =
    575         soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(ste_array);
    576     EXPECT_TRUE(trace_array != NULL);
    577     EXPECT_EQ(11, trace_array->GetLength());
    578 
    579     // Check stack trace entries have expected values
    580     for (int32_t i = 0; i < trace_array->GetLength(); ++i) {
    581       EXPECT_EQ(-2, trace_array->Get(i)->GetLineNumber());
    582       mirror::StackTraceElement* ste = trace_array->Get(i);
    583       EXPECT_STREQ("MyClassNatives.java", ste->GetFileName()->ToModifiedUtf8().c_str());
    584       EXPECT_STREQ("MyClassNatives", ste->GetDeclaringClass()->ToModifiedUtf8().c_str());
    585       EXPECT_STREQ("fooI", ste->GetMethodName()->ToModifiedUtf8().c_str());
    586     }
    587 
    588     // end recursion
    589     return 0;
    590   } else {
    591     jclass jklass = env->FindClass("MyClassNatives");
    592     EXPECT_TRUE(jklass != NULL);
    593     jmethodID jmethod = env->GetMethodID(jklass, "fooI", "(I)I");
    594     EXPECT_TRUE(jmethod != NULL);
    595 
    596     // Recurse with i - 1
    597     jint result = env->CallNonvirtualIntMethod(thisObj, jklass, jmethod, i - 1);
    598 
    599     // Return sum of all depths
    600     return i + result;
    601   }
    602 }
    603 
    604 TEST_F(JniCompilerTest, NativeStackTraceElement) {
    605   TEST_DISABLED_FOR_PORTABLE();
    606   SetUpForTest(false, "fooI", "(I)I",
    607                reinterpret_cast<void*>(&Java_MyClassNatives_nativeUpCall));
    608   jint result = env_->CallNonvirtualIntMethod(jobj_, jklass_, jmethod_, 10);
    609   EXPECT_EQ(10+9+8+7+6+5+4+3+2+1, result);
    610 }
    611 
    612 jobject Java_MyClassNatives_fooO(JNIEnv* env, jobject, jobject x) {
    613   return env->NewGlobalRef(x);
    614 }
    615 
    616 TEST_F(JniCompilerTest, ReturnGlobalRef) {
    617   TEST_DISABLED_FOR_PORTABLE();
    618   SetUpForTest(false, "fooO", "(Ljava/lang/Object;)Ljava/lang/Object;",
    619                reinterpret_cast<void*>(&Java_MyClassNatives_fooO));
    620   jobject result = env_->CallNonvirtualObjectMethod(jobj_, jklass_, jmethod_, jobj_);
    621   EXPECT_EQ(JNILocalRefType, env_->GetObjectRefType(result));
    622   EXPECT_TRUE(env_->IsSameObject(result, jobj_));
    623 }
    624 
    625 jint local_ref_test(JNIEnv* env, jobject thisObj, jint x) {
    626   // Add 10 local references
    627   ScopedObjectAccess soa(env);
    628   for (int i = 0; i < 10; i++) {
    629     soa.AddLocalReference<jobject>(soa.Decode<mirror::Object*>(thisObj));
    630   }
    631   return x+1;
    632 }
    633 
    634 TEST_F(JniCompilerTest, LocalReferenceTableClearingTest) {
    635   TEST_DISABLED_FOR_PORTABLE();
    636   SetUpForTest(false, "fooI", "(I)I", reinterpret_cast<void*>(&local_ref_test));
    637   // 1000 invocations of a method that adds 10 local references
    638   for (int i = 0; i < 1000; i++) {
    639     jint result = env_->CallIntMethod(jobj_, jmethod_, i);
    640     EXPECT_TRUE(result == i + 1);
    641   }
    642 }
    643 
    644 void my_arraycopy(JNIEnv* env, jclass klass, jobject src, jint src_pos, jobject dst, jint dst_pos, jint length) {
    645   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jklass_, klass));
    646   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jklass_, dst));
    647   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jobj_, src));
    648   EXPECT_EQ(1234, src_pos);
    649   EXPECT_EQ(5678, dst_pos);
    650   EXPECT_EQ(9876, length);
    651 }
    652 
    653 TEST_F(JniCompilerTest, JavaLangSystemArrayCopy) {
    654   TEST_DISABLED_FOR_PORTABLE();
    655   SetUpForTest(true, "arraycopy", "(Ljava/lang/Object;ILjava/lang/Object;II)V",
    656                reinterpret_cast<void*>(&my_arraycopy));
    657   env_->CallStaticVoidMethod(jklass_, jmethod_, jobj_, 1234, jklass_, 5678, 9876);
    658 }
    659 
    660 jboolean my_casi(JNIEnv* env, jobject unsafe, jobject obj, jlong offset, jint expected, jint newval) {
    661   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jobj_, unsafe));
    662   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jobj_, obj));
    663   EXPECT_EQ(0x12345678ABCDEF88ll, offset);
    664   EXPECT_EQ(static_cast<jint>(0xCAFEF00D), expected);
    665   EXPECT_EQ(static_cast<jint>(0xEBADF00D), newval);
    666   return JNI_TRUE;
    667 }
    668 
    669 TEST_F(JniCompilerTest, CompareAndSwapInt) {
    670   TEST_DISABLED_FOR_PORTABLE();
    671   SetUpForTest(false, "compareAndSwapInt", "(Ljava/lang/Object;JII)Z",
    672                reinterpret_cast<void*>(&my_casi));
    673   jboolean result = env_->CallBooleanMethod(jobj_, jmethod_, jobj_, 0x12345678ABCDEF88ll, 0xCAFEF00D, 0xEBADF00D);
    674   EXPECT_EQ(result, JNI_TRUE);
    675 }
    676 
    677 jint my_gettext(JNIEnv* env, jclass klass, jlong val1, jobject obj1, jlong val2, jobject obj2) {
    678   EXPECT_TRUE(env->IsInstanceOf(JniCompilerTest::jobj_, klass));
    679   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jobj_, obj1));
    680   EXPECT_TRUE(env->IsSameObject(JniCompilerTest::jobj_, obj2));
    681   EXPECT_EQ(0x12345678ABCDEF88ll, val1);
    682   EXPECT_EQ(0x7FEDCBA987654321ll, val2);
    683   return 42;
    684 }
    685 
    686 TEST_F(JniCompilerTest, GetText) {
    687   TEST_DISABLED_FOR_PORTABLE();
    688   SetUpForTest(true, "getText", "(JLjava/lang/Object;JLjava/lang/Object;)I",
    689                reinterpret_cast<void*>(&my_gettext));
    690   jint result = env_->CallStaticIntMethod(jklass_, jmethod_, 0x12345678ABCDEF88ll, jobj_,
    691                                           0x7FEDCBA987654321ll, jobj_);
    692   EXPECT_EQ(result, 42);
    693 }
    694 
    695 TEST_F(JniCompilerTest, GetSinkPropertiesNative) {
    696   TEST_DISABLED_FOR_PORTABLE();
    697   SetUpForTest(false, "getSinkPropertiesNative", "(Ljava/lang/String;)[Ljava/lang/Object;", NULL);
    698   // This space intentionally left blank. Just testing compilation succeeds.
    699 }
    700 
    701 // This should return jclass, but we're imitating a bug pattern.
    702 jobject Java_MyClassNatives_instanceMethodThatShouldReturnClass(JNIEnv* env, jobject) {
    703   return env->NewStringUTF("not a class!");
    704 }
    705 
    706 // This should return jclass, but we're imitating a bug pattern.
    707 jobject Java_MyClassNatives_staticMethodThatShouldReturnClass(JNIEnv* env, jclass) {
    708   return env->NewStringUTF("not a class!");
    709 }
    710 
    711 TEST_F(JniCompilerTest, UpcallReturnTypeChecking_Instance) {
    712   TEST_DISABLED_FOR_PORTABLE();
    713   SetUpForTest(false, "instanceMethodThatShouldReturnClass", "()Ljava/lang/Class;",
    714                reinterpret_cast<void*>(&Java_MyClassNatives_instanceMethodThatShouldReturnClass));
    715 
    716   CheckJniAbortCatcher check_jni_abort_catcher;
    717   // TODO: check type of returns with portable JNI compiler.
    718   // This native method is bad, and tries to return a jstring as a jclass.
    719   env_->CallObjectMethod(jobj_, jmethod_);
    720   check_jni_abort_catcher.Check("attempt to return an instance of java.lang.String from java.lang.Class MyClassNatives.instanceMethodThatShouldReturnClass()");
    721 
    722   // Here, we just call the method incorrectly; we should catch that too.
    723   env_->CallVoidMethod(jobj_, jmethod_);
    724   check_jni_abort_catcher.Check("attempt to return an instance of java.lang.String from java.lang.Class MyClassNatives.instanceMethodThatShouldReturnClass()");
    725   env_->CallStaticVoidMethod(jklass_, jmethod_);
    726   check_jni_abort_catcher.Check("calling non-static method java.lang.Class MyClassNatives.instanceMethodThatShouldReturnClass() with CallStaticVoidMethodV");
    727 }
    728 
    729 TEST_F(JniCompilerTest, UpcallReturnTypeChecking_Static) {
    730   TEST_DISABLED_FOR_PORTABLE();
    731   SetUpForTest(true, "staticMethodThatShouldReturnClass", "()Ljava/lang/Class;",
    732                reinterpret_cast<void*>(&Java_MyClassNatives_staticMethodThatShouldReturnClass));
    733 
    734   CheckJniAbortCatcher check_jni_abort_catcher;
    735   // TODO: check type of returns with portable JNI compiler.
    736   // This native method is bad, and tries to return a jstring as a jclass.
    737   env_->CallStaticObjectMethod(jklass_, jmethod_);
    738   check_jni_abort_catcher.Check("attempt to return an instance of java.lang.String from java.lang.Class MyClassNatives.staticMethodThatShouldReturnClass()");
    739 
    740   // Here, we just call the method incorrectly; we should catch that too.
    741   env_->CallStaticVoidMethod(jklass_, jmethod_);
    742   check_jni_abort_catcher.Check("attempt to return an instance of java.lang.String from java.lang.Class MyClassNatives.staticMethodThatShouldReturnClass()");
    743   env_->CallVoidMethod(jobj_, jmethod_);
    744   check_jni_abort_catcher.Check("calling static method java.lang.Class MyClassNatives.staticMethodThatShouldReturnClass() with CallVoidMethodV");
    745 }
    746 
    747 // This should take jclass, but we're imitating a bug pattern.
    748 void Java_MyClassNatives_instanceMethodThatShouldTakeClass(JNIEnv*, jobject, jclass) {
    749 }
    750 
    751 // This should take jclass, but we're imitating a bug pattern.
    752 void Java_MyClassNatives_staticMethodThatShouldTakeClass(JNIEnv*, jclass, jclass) {
    753 }
    754 
    755 TEST_F(JniCompilerTest, UpcallArgumentTypeChecking_Instance) {
    756   TEST_DISABLED_FOR_PORTABLE();
    757   SetUpForTest(false, "instanceMethodThatShouldTakeClass", "(ILjava/lang/Class;)V",
    758                reinterpret_cast<void*>(&Java_MyClassNatives_instanceMethodThatShouldTakeClass));
    759 
    760   CheckJniAbortCatcher check_jni_abort_catcher;
    761   // We deliberately pass a bad second argument here.
    762   env_->CallVoidMethod(jobj_, jmethod_, 123, env_->NewStringUTF("not a class!"));
    763   check_jni_abort_catcher.Check("bad arguments passed to void MyClassNatives.instanceMethodThatShouldTakeClass(int, java.lang.Class)");
    764 }
    765 
    766 TEST_F(JniCompilerTest, UpcallArgumentTypeChecking_Static) {
    767   TEST_DISABLED_FOR_PORTABLE();
    768   SetUpForTest(true, "staticMethodThatShouldTakeClass", "(ILjava/lang/Class;)V",
    769                reinterpret_cast<void*>(&Java_MyClassNatives_staticMethodThatShouldTakeClass));
    770 
    771   CheckJniAbortCatcher check_jni_abort_catcher;
    772   // We deliberately pass a bad second argument here.
    773   env_->CallStaticVoidMethod(jklass_, jmethod_, 123, env_->NewStringUTF("not a class!"));
    774   check_jni_abort_catcher.Check("bad arguments passed to void MyClassNatives.staticMethodThatShouldTakeClass(int, java.lang.Class)");
    775 }
    776 
    777 }  // namespace art
    778