1 /*
2 * Copyright (C) 2013 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 <iostream>
18 #include <pthread.h>
19 #include <stdio.h>
20 #include <vector>
21
22 #include "art_method-inl.h"
23 #include "base/logging.h"
24 #include "jni.h"
25
26 namespace art {
27
28 static JavaVM* jvm = nullptr;
29
30 static jint Java_Main_intFastNativeMethod(JNIEnv*, jclass, jint a, jint b, jint c);
31 static jint Java_Main_intCriticalNativeMethod(jint a, jint b, jint c);
32
33 static JNINativeMethod sMainMethods[] = {
34 {"intFastNativeMethod", "(III)I", reinterpret_cast<void*>(Java_Main_intFastNativeMethod) },
35 {"intCriticalNativeMethod", "(III)I", reinterpret_cast<void*>(Java_Main_intCriticalNativeMethod) },
36 };
37
JNI_OnLoad(JavaVM * vm,void *)38 extern "C" JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void*) {
39 CHECK(vm != nullptr);
40 CHECK(jvm == nullptr);
41 jvm = vm;
42 std::cout << "JNI_OnLoad called" << std::endl;
43
44 return JNI_VERSION_1_6;
45 }
46
JNI_OnUnload(JavaVM *,void *)47 extern "C" JNIEXPORT void JNI_OnUnload(JavaVM*, void*) {
48 // std::cout since LOG(INFO) adds extra stuff like pid.
49 std::cout << "JNI_OnUnload called" << std::endl;
50 // Clear jvm for CHECK in test 004-JniTest.
51 jvm = nullptr;
52 }
53
AttachHelper(void * arg)54 static void* AttachHelper(void* arg) {
55 CHECK(jvm != nullptr);
56
57 JNIEnv* env = nullptr;
58 JavaVMAttachArgs args = { JNI_VERSION_1_6, __FUNCTION__, nullptr };
59 int attach_result = jvm->AttachCurrentThread(&env, &args);
60 CHECK_EQ(attach_result, 0);
61
62 typedef void (*Fn)(JNIEnv*);
63 Fn fn = reinterpret_cast<Fn>(arg);
64 fn(env);
65
66 int detach_result = jvm->DetachCurrentThread();
67 CHECK_EQ(detach_result, 0);
68 return nullptr;
69 }
70
PthreadHelper(void (* fn)(JNIEnv *))71 static void PthreadHelper(void (*fn)(JNIEnv*)) {
72 pthread_t pthread;
73 int pthread_create_result = pthread_create(&pthread, nullptr, AttachHelper,
74 reinterpret_cast<void*>(fn));
75 CHECK_EQ(pthread_create_result, 0);
76 int pthread_join_result = pthread_join(pthread, nullptr);
77 CHECK_EQ(pthread_join_result, 0);
78 }
79
testFindClassOnAttachedNativeThread(JNIEnv * env)80 static void testFindClassOnAttachedNativeThread(JNIEnv* env) {
81 jclass clazz = env->FindClass("Main");
82 CHECK(clazz != nullptr);
83 CHECK(!env->ExceptionCheck());
84
85 jobjectArray array = env->NewObjectArray(0, clazz, nullptr);
86 CHECK(array != nullptr);
87 CHECK(!env->ExceptionCheck());
88 }
89
90 // http://b/10994325
Java_Main_testFindClassOnAttachedNativeThread(JNIEnv *,jclass)91 extern "C" JNIEXPORT void JNICALL Java_Main_testFindClassOnAttachedNativeThread(JNIEnv*, jclass) {
92 PthreadHelper(&testFindClassOnAttachedNativeThread);
93 }
94
testFindFieldOnAttachedNativeThread(JNIEnv * env)95 static void testFindFieldOnAttachedNativeThread(JNIEnv* env) {
96 jclass clazz = env->FindClass("Main");
97 CHECK(clazz != nullptr);
98 CHECK(!env->ExceptionCheck());
99
100 jfieldID field = env->GetStaticFieldID(clazz, "testFindFieldOnAttachedNativeThreadField", "Z");
101 CHECK(field != nullptr);
102 CHECK(!env->ExceptionCheck());
103
104 env->SetStaticBooleanField(clazz, field, JNI_TRUE);
105 }
106
Java_Main_testFindFieldOnAttachedNativeThreadNative(JNIEnv *,jclass)107 extern "C" JNIEXPORT void JNICALL Java_Main_testFindFieldOnAttachedNativeThreadNative(JNIEnv*,
108 jclass) {
109 PthreadHelper(&testFindFieldOnAttachedNativeThread);
110 }
111
testReflectFieldGetFromAttachedNativeThread(JNIEnv * env)112 static void testReflectFieldGetFromAttachedNativeThread(JNIEnv* env) {
113 jclass clazz = env->FindClass("Main");
114 CHECK(clazz != nullptr);
115 CHECK(!env->ExceptionCheck());
116
117 jclass class_clazz = env->FindClass("java/lang/Class");
118 CHECK(class_clazz != nullptr);
119 CHECK(!env->ExceptionCheck());
120
121 jmethodID getFieldMetodId = env->GetMethodID(class_clazz, "getField",
122 "(Ljava/lang/String;)Ljava/lang/reflect/Field;");
123 CHECK(getFieldMetodId != nullptr);
124 CHECK(!env->ExceptionCheck());
125
126 jstring field_name = env->NewStringUTF("testReflectFieldGetFromAttachedNativeThreadField");
127 CHECK(field_name != nullptr);
128 CHECK(!env->ExceptionCheck());
129
130 jobject field = env->CallObjectMethod(clazz, getFieldMetodId, field_name);
131 CHECK(field != nullptr);
132 CHECK(!env->ExceptionCheck());
133
134 jclass field_clazz = env->FindClass("java/lang/reflect/Field");
135 CHECK(field_clazz != nullptr);
136 CHECK(!env->ExceptionCheck());
137
138 jmethodID getBooleanMetodId = env->GetMethodID(field_clazz, "getBoolean",
139 "(Ljava/lang/Object;)Z");
140 CHECK(getBooleanMetodId != nullptr);
141 CHECK(!env->ExceptionCheck());
142
143 jboolean value = env->CallBooleanMethod(field, getBooleanMetodId, /* ignored */ clazz);
144 CHECK(value == false);
145 CHECK(!env->ExceptionCheck());
146 }
147
148 // http://b/15539150
Java_Main_testReflectFieldGetFromAttachedNativeThreadNative(JNIEnv *,jclass)149 extern "C" JNIEXPORT void JNICALL Java_Main_testReflectFieldGetFromAttachedNativeThreadNative(
150 JNIEnv*, jclass) {
151 PthreadHelper(&testReflectFieldGetFromAttachedNativeThread);
152 }
153
154
155 // http://b/11243757
Java_Main_testCallStaticVoidMethodOnSubClassNative(JNIEnv * env,jclass)156 extern "C" JNIEXPORT void JNICALL Java_Main_testCallStaticVoidMethodOnSubClassNative(JNIEnv* env,
157 jclass) {
158 jclass super_class = env->FindClass("Main$testCallStaticVoidMethodOnSubClass_SuperClass");
159 CHECK(super_class != nullptr);
160
161 jmethodID execute = env->GetStaticMethodID(super_class, "execute", "()V");
162 CHECK(execute != nullptr);
163
164 jclass sub_class = env->FindClass("Main$testCallStaticVoidMethodOnSubClass_SubClass");
165 CHECK(sub_class != nullptr);
166
167 env->CallStaticVoidMethod(sub_class, execute);
168 }
169
Java_Main_testGetMirandaMethodNative(JNIEnv * env,jclass)170 extern "C" JNIEXPORT jobject JNICALL Java_Main_testGetMirandaMethodNative(JNIEnv* env, jclass) {
171 jclass abstract_class = env->FindClass("Main$testGetMirandaMethod_MirandaAbstract");
172 CHECK(abstract_class != nullptr);
173 jmethodID miranda_method = env->GetMethodID(abstract_class, "inInterface", "()Z");
174 CHECK(miranda_method != nullptr);
175 return env->ToReflectedMethod(abstract_class, miranda_method, JNI_FALSE);
176 }
177
178 // https://code.google.com/p/android/issues/detail?id=63055
Java_Main_testZeroLengthByteBuffers(JNIEnv * env,jclass)179 extern "C" void JNICALL Java_Main_testZeroLengthByteBuffers(JNIEnv* env, jclass) {
180 std::vector<uint8_t> buffer(1);
181 jobject byte_buffer = env->NewDirectByteBuffer(&buffer[0], 0);
182 CHECK(byte_buffer != nullptr);
183 CHECK(!env->ExceptionCheck());
184
185 CHECK_EQ(env->GetDirectBufferAddress(byte_buffer), &buffer[0]);
186 CHECK_EQ(env->GetDirectBufferCapacity(byte_buffer), 0);
187 }
188
189 constexpr size_t kByteReturnSize = 7;
190 jbyte byte_returns[kByteReturnSize] = { 0, 1, 2, 127, -1, -2, -128 };
191
Java_Main_byteMethod(JNIEnv *,jclass,jbyte b1,jbyte b2,jbyte b3,jbyte b4,jbyte b5,jbyte b6,jbyte b7,jbyte b8,jbyte b9,jbyte b10)192 extern "C" jbyte JNICALL Java_Main_byteMethod(JNIEnv*, jclass, jbyte b1, jbyte b2,
193 jbyte b3, jbyte b4, jbyte b5, jbyte b6,
194 jbyte b7, jbyte b8, jbyte b9, jbyte b10) {
195 // We use b1 to drive the output.
196 CHECK_EQ(b2, 2);
197 CHECK_EQ(b3, -3);
198 CHECK_EQ(b4, 4);
199 CHECK_EQ(b5, -5);
200 CHECK_EQ(b6, 6);
201 CHECK_EQ(b7, -7);
202 CHECK_EQ(b8, 8);
203 CHECK_EQ(b9, -9);
204 CHECK_EQ(b10, 10);
205
206 CHECK_LE(0, b1);
207 CHECK_LT(b1, static_cast<jbyte>(kByteReturnSize));
208
209 return byte_returns[b1];
210 }
211
212 constexpr size_t kShortReturnSize = 9;
213 jshort short_returns[kShortReturnSize] = { 0, 1, 2, 127, 32767, -1, -2, -128,
214 static_cast<jshort>(0x8000) };
215 // The weird static_cast is because short int is only guaranteed down to -32767, not Java's -32768.
216
Java_Main_shortMethod(JNIEnv *,jclass,jshort s1,jshort s2,jshort s3,jshort s4,jshort s5,jshort s6,jshort s7,jshort s8,jshort s9,jshort s10)217 extern "C" jshort JNICALL Java_Main_shortMethod(JNIEnv*, jclass, jshort s1, jshort s2,
218 jshort s3, jshort s4, jshort s5, jshort s6,
219 jshort s7, jshort s8, jshort s9, jshort s10) {
220 // We use s1 to drive the output.
221 CHECK_EQ(s2, 2);
222 CHECK_EQ(s3, -3);
223 CHECK_EQ(s4, 4);
224 CHECK_EQ(s5, -5);
225 CHECK_EQ(s6, 6);
226 CHECK_EQ(s7, -7);
227 CHECK_EQ(s8, 8);
228 CHECK_EQ(s9, -9);
229 CHECK_EQ(s10, 10);
230
231 CHECK_LE(0, s1);
232 CHECK_LT(s1, static_cast<jshort>(kShortReturnSize));
233
234 return short_returns[s1];
235 }
236
Java_Main_booleanMethod(JNIEnv *,jclass,jboolean b1,jboolean b2,jboolean b3,jboolean b4,jboolean b5,jboolean b6,jboolean b7,jboolean b8,jboolean b9,jboolean b10)237 extern "C" jboolean JNICALL Java_Main_booleanMethod(JNIEnv*, jclass, jboolean b1,
238 jboolean b2, jboolean b3, jboolean b4,
239 jboolean b5, jboolean b6, jboolean b7,
240 jboolean b8, jboolean b9, jboolean b10) {
241 // We use b1 to drive the output.
242 CHECK_EQ(b2, JNI_TRUE);
243 CHECK_EQ(b3, JNI_FALSE);
244 CHECK_EQ(b4, JNI_TRUE);
245 CHECK_EQ(b5, JNI_FALSE);
246 CHECK_EQ(b6, JNI_TRUE);
247 CHECK_EQ(b7, JNI_FALSE);
248 CHECK_EQ(b8, JNI_TRUE);
249 CHECK_EQ(b9, JNI_FALSE);
250 CHECK_EQ(b10, JNI_TRUE);
251
252 CHECK(b1 == JNI_TRUE || b1 == JNI_FALSE);
253 return b1;
254 }
255
256 constexpr size_t kCharReturnSize = 8;
257 jchar char_returns[kCharReturnSize] = { 0, 1, 2, 127, 255, 256, 15000, 34000 };
258
Java_Main_charMethod(JNIEnv *,jclass,jchar c1,jchar c2,jchar c3,jchar c4,jchar c5,jchar c6,jchar c7,jchar c8,jchar c9,jchar c10)259 extern "C" jchar JNICALL Java_Main_charMethod(JNIEnv*, jclass, jchar c1, jchar c2,
260 jchar c3, jchar c4, jchar c5, jchar c6, jchar c7,
261 jchar c8, jchar c9, jchar c10) {
262 // We use c1 to drive the output.
263 CHECK_EQ(c2, 'a');
264 CHECK_EQ(c3, 'b');
265 CHECK_EQ(c4, 'c');
266 CHECK_EQ(c5, '0');
267 CHECK_EQ(c6, '1');
268 CHECK_EQ(c7, '2');
269 CHECK_EQ(c8, 1234);
270 CHECK_EQ(c9, 2345);
271 CHECK_EQ(c10, 3456);
272
273 CHECK_LT(c1, static_cast<jchar>(kCharReturnSize));
274
275 return char_returns[c1];
276 }
277
Java_Main_removeLocalObject(JNIEnv * env,jclass,jclass o)278 extern "C" JNIEXPORT void JNICALL Java_Main_removeLocalObject(JNIEnv* env, jclass, jclass o) {
279 // Delete the arg to see if it crashes.
280 env->DeleteLocalRef(o);
281 }
282
Java_Main_nativeIsAssignableFrom(JNIEnv * env,jclass,jclass from,jclass to)283 extern "C" JNIEXPORT jboolean JNICALL Java_Main_nativeIsAssignableFrom(JNIEnv* env, jclass,
284 jclass from, jclass to) {
285 return env->IsAssignableFrom(from, to);
286 }
287
testShallowGetCallingClassLoader(JNIEnv * env)288 static void testShallowGetCallingClassLoader(JNIEnv* env) {
289 // Test direct call.
290 {
291 jclass vmstack_clazz = env->FindClass("dalvik/system/VMStack");
292 CHECK(vmstack_clazz != nullptr);
293 CHECK(!env->ExceptionCheck());
294
295 jmethodID getCallingClassLoaderMethodId = env->GetStaticMethodID(vmstack_clazz,
296 "getCallingClassLoader",
297 "()Ljava/lang/ClassLoader;");
298 CHECK(getCallingClassLoaderMethodId != nullptr);
299 CHECK(!env->ExceptionCheck());
300
301 jobject class_loader = env->CallStaticObjectMethod(vmstack_clazz,
302 getCallingClassLoaderMethodId);
303 CHECK(class_loader == nullptr);
304 CHECK(!env->ExceptionCheck());
305 }
306
307 // Test one-level call. Use System.loadLibrary().
308 {
309 jclass system_clazz = env->FindClass("java/lang/System");
310 CHECK(system_clazz != nullptr);
311 CHECK(!env->ExceptionCheck());
312
313 jmethodID loadLibraryMethodId = env->GetStaticMethodID(system_clazz, "loadLibrary",
314 "(Ljava/lang/String;)V");
315 CHECK(loadLibraryMethodId != nullptr);
316 CHECK(!env->ExceptionCheck());
317
318 // Create a string object.
319 jobject library_string = env->NewStringUTF("non_existing_library");
320 CHECK(library_string != nullptr);
321 CHECK(!env->ExceptionCheck());
322
323 env->CallStaticVoidMethod(system_clazz, loadLibraryMethodId, library_string);
324 CHECK(env->ExceptionCheck());
325
326 // We expect UnsatisfiedLinkError.
327 jthrowable thrown = env->ExceptionOccurred();
328 env->ExceptionClear();
329
330 jclass unsatisfied_link_error_clazz = env->FindClass("java/lang/UnsatisfiedLinkError");
331 jclass thrown_class = env->GetObjectClass(thrown);
332 CHECK(env->IsSameObject(unsatisfied_link_error_clazz, thrown_class));
333 }
334 }
335
336 // http://b/16867274
Java_Main_nativeTestShallowGetCallingClassLoader(JNIEnv *,jclass)337 extern "C" JNIEXPORT void JNICALL Java_Main_nativeTestShallowGetCallingClassLoader(JNIEnv*,
338 jclass) {
339 PthreadHelper(&testShallowGetCallingClassLoader);
340 }
341
testShallowGetStackClass2(JNIEnv * env)342 static void testShallowGetStackClass2(JNIEnv* env) {
343 jclass vmstack_clazz = env->FindClass("dalvik/system/VMStack");
344 CHECK(vmstack_clazz != nullptr);
345 CHECK(!env->ExceptionCheck());
346
347 // Test direct call.
348 {
349 jmethodID getStackClass2MethodId = env->GetStaticMethodID(vmstack_clazz, "getStackClass2",
350 "()Ljava/lang/Class;");
351 CHECK(getStackClass2MethodId != nullptr);
352 CHECK(!env->ExceptionCheck());
353
354 jobject caller_class = env->CallStaticObjectMethod(vmstack_clazz, getStackClass2MethodId);
355 CHECK(caller_class == nullptr);
356 CHECK(!env->ExceptionCheck());
357 }
358
359 // Test one-level call. Use VMStack.getStackClass1().
360 {
361 jmethodID getStackClass1MethodId = env->GetStaticMethodID(vmstack_clazz, "getStackClass1",
362 "()Ljava/lang/Class;");
363 CHECK(getStackClass1MethodId != nullptr);
364 CHECK(!env->ExceptionCheck());
365
366 jobject caller_class = env->CallStaticObjectMethod(vmstack_clazz, getStackClass1MethodId);
367 CHECK(caller_class == nullptr);
368 CHECK(!env->ExceptionCheck());
369 }
370
371 // For better testing we would need to compile against libcore and have a two-deep stack
372 // ourselves.
373 }
374
Java_Main_nativeTestShallowGetStackClass2(JNIEnv *,jclass)375 extern "C" JNIEXPORT void JNICALL Java_Main_nativeTestShallowGetStackClass2(JNIEnv*, jclass) {
376 PthreadHelper(&testShallowGetStackClass2);
377 }
378
379 class JniCallNonvirtualVoidMethodTest {
380 public:
JniCallNonvirtualVoidMethodTest(JNIEnv * env)381 explicit JniCallNonvirtualVoidMethodTest(JNIEnv* env)
382 : env_(env),
383 check_jni_ri_(true),
384 check_jni_android_(true),
385 super_(GetClass("JniCallNonvirtualTest")),
386 sub_(GetClass("JniCallNonvirtualTestSubclass")),
387 super_constructor_(GetMethodID(super_, true, "<init>")),
388 super_static_(GetMethodID(super_, false, "staticMethod")),
389 super_nonstatic_(GetMethodID(super_, true, "nonstaticMethod")),
390 sub_constructor_(GetMethodID(sub_, true, "<init>")),
391 sub_static_(GetMethodID(sub_, false, "staticMethod")),
392 sub_nonstatic_(GetMethodID(sub_, true, "nonstaticMethod")),
393 super_field_(GetFieldID(super_, "nonstaticMethodSuperCalled")),
394 sub_field_(GetFieldID(super_, "nonstaticMethodSubCalled")) {}
395
Test()396 void Test() {
397 TestStaticCallNonvirtualMethod();
398 TestNewObject();
399 TestnonstaticCallNonvirtualMethod();
400 }
401
402 JNIEnv* const env_;
403
404 bool const check_jni_ri_;
405 bool const check_jni_android_;
406
407 jclass const super_;
408 jclass const sub_;
409
410 jmethodID const super_constructor_;
411 jmethodID const super_static_;
412 jmethodID const super_nonstatic_;
413 jmethodID const sub_constructor_;
414 jmethodID const sub_static_;
415 jmethodID const sub_nonstatic_;
416
417 jfieldID const super_field_;
418 jfieldID const sub_field_;
419
420 private:
GetClass(const char * class_name)421 jclass GetClass(const char* class_name) {
422 jclass c = env_->FindClass(class_name);
423 if (env_->ExceptionCheck()) {
424 env_->ExceptionDescribe();
425 env_->FatalError(__FUNCTION__);
426 }
427 CHECK(!env_->ExceptionCheck());
428 CHECK(c != nullptr);
429 return c;
430 }
431
GetMethodID(jclass c,bool nonstatic,const char * method_name)432 jmethodID GetMethodID(jclass c, bool nonstatic, const char* method_name) {
433 jmethodID m = ((nonstatic) ?
434 env_->GetMethodID(c, method_name, "()V") :
435 env_->GetStaticMethodID(c, method_name, "()V"));
436 if (env_->ExceptionCheck()) {
437 env_->ExceptionDescribe();
438 env_->FatalError(__FUNCTION__);
439 }
440 CHECK(m != nullptr);
441 return m;
442 }
443
CallConstructor(jclass c,jmethodID m)444 jobject CallConstructor(jclass c, jmethodID m) {
445 jobject o = env_->NewObject(c, m);
446 if (env_->ExceptionCheck()) {
447 env_->ExceptionDescribe();
448 env_->FatalError(__FUNCTION__);
449 }
450 CHECK(o != nullptr);
451 return o;
452 }
453
CallMethod(jobject o,jclass c,jmethodID m,bool nonstatic,const char * test_case)454 void CallMethod(jobject o, jclass c, jmethodID m, bool nonstatic, const char* test_case) {
455 printf("RUNNING %s\n", test_case);
456 env_->CallNonvirtualVoidMethod(o, c, m);
457 bool exception_check = env_->ExceptionCheck();
458 if (c == nullptr || !nonstatic) {
459 if (!exception_check) {
460 printf("FAILED %s due to missing exception\n", test_case);
461 env_->FatalError("Expected NullPointerException with null jclass");
462 }
463 env_->ExceptionClear();
464 } else if (exception_check) {
465 printf("FAILED %s due to pending exception\n", test_case);
466 env_->ExceptionDescribe();
467 env_->FatalError(test_case);
468 }
469 printf("PASSED %s\n", test_case);
470 }
471
GetFieldID(jclass c,const char * field_name)472 jfieldID GetFieldID(jclass c, const char* field_name) {
473 jfieldID m = env_->GetFieldID(c, field_name, "Z");
474 if (env_->ExceptionCheck()) {
475 env_->ExceptionDescribe();
476 env_->FatalError(__FUNCTION__);
477 }
478 CHECK(m != nullptr);
479 return m;
480 }
481
GetBooleanField(jobject o,jfieldID f)482 jboolean GetBooleanField(jobject o, jfieldID f) {
483 jboolean b = env_->GetBooleanField(o, f);
484 if (env_->ExceptionCheck()) {
485 env_->ExceptionDescribe();
486 env_->FatalError(__FUNCTION__);
487 }
488 return b;
489 }
490
TestStaticCallNonvirtualMethod()491 void TestStaticCallNonvirtualMethod() {
492 if (!check_jni_ri_&& !check_jni_android_) {
493 CallMethod(nullptr, nullptr, super_static_, false, "null object, null class, super static");
494 }
495 if (!check_jni_android_) {
496 CallMethod(nullptr, super_, super_static_, false, "null object, super class, super static");
497 }
498 if (!check_jni_android_) {
499 CallMethod(nullptr, sub_, super_static_, false, "null object, sub class, super static");
500 }
501
502 if (!check_jni_ri_ && !check_jni_android_) {
503 CallMethod(nullptr, nullptr, sub_static_, false, "null object, null class, sub static");
504 }
505 if (!check_jni_android_) {
506 CallMethod(nullptr, sub_, sub_static_, false, "null object, super class, sub static");
507 }
508 if (!check_jni_android_) {
509 CallMethod(nullptr, super_, sub_static_, false, "null object, super class, sub static");
510 }
511 }
512
TestNewObject()513 void TestNewObject() {
514 jobject super_super = CallConstructor(super_, super_constructor_);
515 jobject super_sub = CallConstructor(super_, sub_constructor_);
516 jobject sub_super = CallConstructor(sub_, super_constructor_);
517 jobject sub_sub = CallConstructor(sub_, sub_constructor_);
518
519 CHECK(env_->IsInstanceOf(super_super, super_));
520 CHECK(!env_->IsInstanceOf(super_super, sub_));
521
522 // Note that even though we called (and ran) the subclass
523 // constructor, we are not the subclass.
524 CHECK(env_->IsInstanceOf(super_sub, super_));
525 CHECK(!env_->IsInstanceOf(super_sub, sub_));
526
527 // Note that even though we called the superclass constructor, we
528 // are still the subclass.
529 CHECK(env_->IsInstanceOf(sub_super, super_));
530 CHECK(env_->IsInstanceOf(sub_super, sub_));
531
532 CHECK(env_->IsInstanceOf(sub_sub, super_));
533 CHECK(env_->IsInstanceOf(sub_sub, sub_));
534 }
535
TestnonstaticCallNonvirtualMethod(bool super_object,bool super_class,bool super_method,const char * test_case)536 void TestnonstaticCallNonvirtualMethod(bool super_object, bool super_class, bool super_method, const char* test_case) {
537 if (check_jni_android_) {
538 if (super_object && !super_method) {
539 return; // We don't allow a call with sub class method on the super class instance.
540 }
541 if (super_class && !super_method) {
542 return; // We don't allow a call with the sub class method with the super class argument.
543 }
544 }
545 jobject o = ((super_object) ?
546 CallConstructor(super_, super_constructor_) :
547 CallConstructor(sub_, sub_constructor_));
548 jclass c = (super_class) ? super_ : sub_;
549 jmethodID m = (super_method) ? super_nonstatic_ : sub_nonstatic_;
550 CallMethod(o, c, m, true, test_case);
551 jboolean super_field = GetBooleanField(o, super_field_);
552 jboolean sub_field = GetBooleanField(o, sub_field_);
553 CHECK_EQ(super_field, super_method);
554 CHECK_NE(sub_field, super_method);
555 }
556
TestnonstaticCallNonvirtualMethod()557 void TestnonstaticCallNonvirtualMethod() {
558 TestnonstaticCallNonvirtualMethod(true, true, true, "super object, super class, super nonstatic");
559 TestnonstaticCallNonvirtualMethod(true, false, true, "super object, sub class, super nonstatic");
560 TestnonstaticCallNonvirtualMethod(true, false, false, "super object, sub class, sub nonstatic");
561 TestnonstaticCallNonvirtualMethod(true, true, false, "super object, super class, sub nonstatic");
562
563 TestnonstaticCallNonvirtualMethod(false, true, true, "sub object, super class, super nonstatic");
564 TestnonstaticCallNonvirtualMethod(false, false, true, "sub object, sub class, super nonstatic");
565 TestnonstaticCallNonvirtualMethod(false, false, false, "sub object, sub class, sub nonstatic");
566 TestnonstaticCallNonvirtualMethod(false, true, false, "sub object, super class, sub nonstatic");
567 }
568 };
569
Java_Main_testCallNonvirtual(JNIEnv * env,jclass)570 extern "C" void JNICALL Java_Main_testCallNonvirtual(JNIEnv* env, jclass) {
571 JniCallNonvirtualVoidMethodTest(env).Test();
572 }
573
Java_Main_testNewStringObject(JNIEnv * env,jclass)574 extern "C" JNIEXPORT void JNICALL Java_Main_testNewStringObject(JNIEnv* env, jclass) {
575 jclass c = env->FindClass("java/lang/String");
576 CHECK(c != nullptr);
577
578 jmethodID mid1 = env->GetMethodID(c, "<init>", "()V");
579 CHECK(mid1 != nullptr);
580 CHECK(!env->ExceptionCheck());
581 jmethodID mid2 = env->GetMethodID(c, "<init>", "([B)V");
582 CHECK(mid2 != nullptr);
583 CHECK(!env->ExceptionCheck());
584 jmethodID mid3 = env->GetMethodID(c, "<init>", "([C)V");
585 CHECK(mid3 != nullptr);
586 CHECK(!env->ExceptionCheck());
587 jmethodID mid4 = env->GetMethodID(c, "<init>", "(Ljava/lang/String;)V");
588 CHECK(mid4 != nullptr);
589 CHECK(!env->ExceptionCheck());
590
591 const char* test_array = "Test";
592 int byte_array_length = strlen(test_array);
593 jbyteArray byte_array = env->NewByteArray(byte_array_length);
594 env->SetByteArrayRegion(byte_array, 0, byte_array_length, reinterpret_cast<const jbyte*>(test_array));
595
596 // Test NewObject
597 jstring s = reinterpret_cast<jstring>(env->NewObject(c, mid2, byte_array));
598 CHECK(s != nullptr);
599 CHECK_EQ(env->GetStringLength(s), byte_array_length);
600 CHECK_EQ(env->GetStringUTFLength(s), byte_array_length);
601 const char* chars = env->GetStringUTFChars(s, nullptr);
602 CHECK_EQ(strcmp(test_array, chars), 0);
603 env->ReleaseStringUTFChars(s, chars);
604
605 // Test AllocObject and Call(Nonvirtual)VoidMethod
606 jstring s1 = reinterpret_cast<jstring>(env->AllocObject(c));
607 CHECK(s1 != nullptr);
608 jstring s2 = reinterpret_cast<jstring>(env->AllocObject(c));
609 CHECK(s2 != nullptr);
610 jstring s3 = reinterpret_cast<jstring>(env->AllocObject(c));
611 CHECK(s3 != nullptr);
612 jstring s4 = reinterpret_cast<jstring>(env->AllocObject(c));
613 CHECK(s4 != nullptr);
614
615 jcharArray char_array = env->NewCharArray(5);
616 jstring string_arg = env->NewStringUTF("helloworld");
617
618 // With Var Args
619 env->CallVoidMethod(s1, mid1);
620 env->CallNonvirtualVoidMethod(s2, c, mid2, byte_array);
621
622 // With JValues
623 jvalue args3[1];
624 args3[0].l = char_array;
625 jvalue args4[1];
626 args4[0].l = string_arg;
627 env->CallVoidMethodA(s3, mid3, args3);
628 env->CallNonvirtualVoidMethodA(s4, c, mid4, args4);
629
630 // Test with global and weak global references
631 jstring s5 = reinterpret_cast<jstring>(env->AllocObject(c));
632 CHECK(s5 != nullptr);
633 s5 = reinterpret_cast<jstring>(env->NewGlobalRef(s5));
634 jstring s6 = reinterpret_cast<jstring>(env->AllocObject(c));
635 CHECK(s6 != nullptr);
636 s6 = reinterpret_cast<jstring>(env->NewWeakGlobalRef(s6));
637
638 env->CallVoidMethod(s5, mid1);
639 env->CallNonvirtualVoidMethod(s6, c, mid2, byte_array);
640 CHECK_EQ(env->GetStringLength(s5), 0);
641 CHECK_EQ(env->GetStringLength(s6), byte_array_length);
642 const char* chars6 = env->GetStringUTFChars(s6, nullptr);
643 CHECK_EQ(strcmp(test_array, chars6), 0);
644 env->ReleaseStringUTFChars(s6, chars6);
645 }
646
Java_Main_testGetMethodID(JNIEnv * env,jclass,jclass c)647 extern "C" JNIEXPORT jlong JNICALL Java_Main_testGetMethodID(JNIEnv* env, jclass, jclass c) {
648 return reinterpret_cast<jlong>(env->GetMethodID(c, "a", "()V"));
649 }
650
Java_Main_enterJniCriticalSection(JNIEnv * env,jclass,jint arraySize,jbyteArray array0,jbyteArray array1)651 extern "C" JNIEXPORT void JNICALL Java_Main_enterJniCriticalSection(JNIEnv* env, jclass,
652 jint arraySize,
653 jbyteArray array0,
654 jbyteArray array1) {
655 for (int i = 0; i < 50000; ++i) {
656 char* data0 = reinterpret_cast<char*>(env->GetPrimitiveArrayCritical(array0, nullptr));
657 char* data1 = reinterpret_cast<char*>(env->GetPrimitiveArrayCritical(array1, nullptr));
658 bool up = i % 2 == 0;
659 for (int j = 0; j < arraySize; ++j) {
660 if (up) {
661 data1[j] = data0[j] + 1;
662 } else {
663 data0[j] = data1[j] + 1;
664 }
665 }
666 env->ReleasePrimitiveArrayCritical(array1, data1, 0);
667 env->ReleasePrimitiveArrayCritical(array0, data0, 0);
668 }
669 }
670
671 class JniCallDefaultMethodsTest {
672 public:
JniCallDefaultMethodsTest(JNIEnv * env)673 explicit JniCallDefaultMethodsTest(JNIEnv* env)
674 : env_(env), concrete_class_(env_->FindClass("ConcreteClass")) {
675 CHECK(!env_->ExceptionCheck());
676 CHECK(concrete_class_ != nullptr);
677 }
678
Test()679 void Test() {
680 TestCalls("ConcreteClass", { "JniCallNonOverridenDefaultMethod",
681 "JniCallOverridenDefaultMethod",
682 "JniCallOverridenDefaultMethodWithSuper",
683 "JniCallOverridenAbstractMethod",
684 "JniCallConflictDefaultMethod",
685 "JniCallSoftConflictMethod" });
686 TestCalls("DefaultInterface", { "JniCallNonOverridenDefaultMethod",
687 "JniCallOverridenDefaultMethod",
688 "JniCallOverridenAbstractMethod",
689 "JniCallConflictDefaultMethod",
690 "JniCallSoftConflictMethod" });
691 TestCalls("AbstractInterface", { "JniCallSoftConflictMethod" });
692 TestCalls("ConflictInterface", { "JniCallConflictDefaultMethod" });
693 }
694
695 private:
TestCalls(const char * declaring_class,std::vector<const char * > methods)696 void TestCalls(const char* declaring_class, std::vector<const char*> methods) {
697 jmethodID new_method = env_->GetMethodID(concrete_class_, "<init>", "()V");
698 jobject obj = env_->NewObject(concrete_class_, new_method);
699 CHECK(!env_->ExceptionCheck());
700 CHECK(obj != nullptr);
701 jclass decl_class = env_->FindClass(declaring_class);
702 CHECK(!env_->ExceptionCheck());
703 CHECK(decl_class != nullptr);
704 for (const char* method : methods) {
705 jmethodID method_id = env_->GetMethodID(decl_class, method, "()V");
706 CHECK(!env_->ExceptionCheck());
707 printf("Calling method %s->%s on object of type ConcreteClass\n", declaring_class, method);
708 env_->CallVoidMethod(obj, method_id);
709 if (env_->ExceptionCheck()) {
710 jthrowable thrown = env_->ExceptionOccurred();
711 env_->ExceptionClear();
712 jmethodID to_string = env_->GetMethodID(
713 env_->FindClass("java/lang/Object"), "toString", "()Ljava/lang/String;");
714 jstring exception_string = (jstring) env_->CallObjectMethod(thrown, to_string);
715 CHECK(!env_->ExceptionCheck());
716 const char* exception_string_utf8 = env_->GetStringUTFChars(exception_string, nullptr);
717 CHECK(!env_->ExceptionCheck());
718 CHECK(exception_string_utf8 != nullptr);
719 printf("EXCEPTION OCCURED: %s\n", exception_string_utf8);
720 env_->ReleaseStringUTFChars(exception_string, exception_string_utf8);
721 }
722 }
723 }
724
725 JNIEnv* env_;
726 jclass concrete_class_;
727 };
728
Java_Main_testCallDefaultMethods(JNIEnv * env)729 extern "C" JNIEXPORT void JNICALL Java_Main_testCallDefaultMethods(JNIEnv* env) {
730 JniCallDefaultMethodsTest(env).Test();
731 }
732
InvokeSpecificMethod(JNIEnv * env,jobject obj,const char * method)733 static void InvokeSpecificMethod(JNIEnv* env, jobject obj, const char* method) {
734 jclass lambda_class = env->FindClass("LambdaInterface");
735 CHECK(!env->ExceptionCheck());
736 CHECK(lambda_class != nullptr);
737 jmethodID method_id = env->GetMethodID(lambda_class, method, "()V");
738 CHECK(!env->ExceptionCheck());
739 env->CallVoidMethod(obj, method_id);
740 CHECK(!env->ExceptionCheck());
741 }
742
Java_Main_testInvokeLambdaDefaultMethod(JNIEnv * e,jclass,jobject l)743 extern "C" JNIEXPORT void JNICALL Java_Main_testInvokeLambdaDefaultMethod(
744 JNIEnv* e, jclass, jobject l) {
745 InvokeSpecificMethod(e, l, "sayHiTwice");
746 }
747
Java_Main_testInvokeLambdaMethod(JNIEnv * e,jclass,jobject l)748 extern "C" JNIEXPORT void JNICALL Java_Main_testInvokeLambdaMethod(JNIEnv* e, jclass, jobject l) {
749 InvokeSpecificMethod(e, l, "sayHi");
750 }
751
752 // Register on-demand because many tests share this JNI library and
753 // we can't unconditionally register them.
Java_Main_registerNativesJniTest(JNIEnv * e,jclass kls)754 extern "C" JNIEXPORT jboolean JNICALL Java_Main_registerNativesJniTest(JNIEnv* e, jclass kls) {
755 const size_t numMethods = sizeof(sMainMethods)/sizeof(JNINativeMethod);
756
757 if (e->RegisterNatives(kls, sMainMethods, numMethods) < 0) {
758 std::cerr << "RegisterNatives failed for 'Main'" << std::endl;
759 return JNI_FALSE;
760 }
761
762 return JNI_TRUE;
763 }
764
765 // Annotated with @FastNative in Java code. Doesn't need to be explicitly registered with "!".
766 // NOTE: Has to be registered explicitly to avoid mutator lock check failures.
Java_Main_intFastNativeMethod(JNIEnv *,jclass,jint a,jint b,jint c)767 static jint Java_Main_intFastNativeMethod(JNIEnv*, jclass, jint a, jint b, jint c) {
768 return a + b + c;
769 }
770
771 // Annotated with @CriticalNative in Java code. Doesn't need to be explicitly registered with "!".
772 // NOTE: Has to be registered explicitly to avoid mutator lock check failures.
Java_Main_intCriticalNativeMethod(jint a,jint b,jint c)773 static jint Java_Main_intCriticalNativeMethod(jint a, jint b, jint c) {
774 // Note that unlike a "Fast Native" method this excludes JNIEnv and the jclass parameters.
775 return a + b + c;
776 }
777
Java_Main_isSlowDebug(JNIEnv *,jclass)778 extern "C" JNIEXPORT jboolean JNICALL Java_Main_isSlowDebug(JNIEnv*, jclass) {
779 // Return whether slow-debug is on. Only relevant for debug builds.
780 if (kIsDebugBuild) {
781 // Register a dummy flag and get the default value it should be initialized with.
782 static bool dummy_flag = false;
783 dummy_flag = RegisterRuntimeDebugFlag(&dummy_flag);
784
785 return dummy_flag ? JNI_TRUE : JNI_FALSE;
786 }
787 // To pass the Java-side test, just so "on" for release builds.
788 return JNI_TRUE;
789 }
790
791 } // namespace art
792
793