1
2 /*
3 * Copyright (C) 2019 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 #include <cstdio>
19 #include <memory>
20 #include <mutex>
21 #include <string>
22 #include <vector>
23
24 #include "android-base/logging.h"
25 #include "android-base/macros.h"
26 #include "android-base/stringprintf.h"
27 #include "jni.h"
28 #include "jvmti.h"
29 #include "scoped_local_ref.h"
30 #include "scoped_utf_chars.h"
31
32 // Test infrastructure
33 #include "jni_helper.h"
34 #include "jvmti_helper.h"
35 #include "test_env.h"
36 #include "ti_macros.h"
37
38 namespace art {
39 namespace Test1975StructuralTransform {
40
Java_art_Test1975_readNativeFields(JNIEnv * env,jclass k,jclass f_class,jlongArray f)41 extern "C" JNIEXPORT void JNICALL Java_art_Test1975_readNativeFields(JNIEnv* env,
42 jclass k,
43 jclass f_class,
44 jlongArray f) {
45 jint len = env->GetArrayLength(f);
46 for (jint i = 0; i < len; i++) {
47 jlong fid_val;
48 env->GetLongArrayRegion(f, i, 1, &fid_val);
49 jfieldID fid = reinterpret_cast<jfieldID>(static_cast<intptr_t>(fid_val));
50 // For this test everything is objects and static.
51 jobject val = env->GetStaticObjectField(f_class, fid);
52 env->CallStaticVoidMethod(
53 k,
54 env->GetStaticMethodID(
55 k, "printNativeField", "(JLjava/lang/reflect/Field;Ljava/lang/Object;)V"),
56 fid_val,
57 env->ToReflectedField(f_class, fid, true),
58 val);
59 env->DeleteLocalRef(val);
60 }
61 }
62
Java_art_Test1975_getNativeFields(JNIEnv * env,jclass,jobjectArray f)63 extern "C" JNIEXPORT jlongArray JNICALL Java_art_Test1975_getNativeFields(JNIEnv* env,
64 jclass,
65 jobjectArray f) {
66 jint len = env->GetArrayLength(f);
67 jlongArray arr = env->NewLongArray(len);
68 for (jint i = 0; i < len; i++) {
69 jfieldID fid = env->FromReflectedField(env->GetObjectArrayElement(f, i));
70 jlong lfid = static_cast<jlong>(reinterpret_cast<intptr_t>(fid));
71 env->SetLongArrayRegion(arr, i, 1, &lfid);
72 }
73 return arr;
74 }
75
76 } // namespace Test1975StructuralTransform
77 } // namespace art
78