1 /*
2 * Copyright (C) 2016 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 <jni.h>
18 #include <stdio.h>
19
20 #include <android-base/logging.h>
21 #include <android-base/macros.h>
22
23 #include "art_method-inl.h"
24 #include "jni/java_vm_ext.h"
25 #include "runtime.h"
26
27 namespace art {
28
29 constexpr jint TEST_900_ENV_VERSION_NUMBER = 0x900FFFFF;
30 constexpr uintptr_t ENV_VALUE = 900;
31
32 // Allow this library to be used as a plugin too so we can test the stack.
GetEnvHandler(JavaVMExt * vm ATTRIBUTE_UNUSED,void ** new_env,jint version)33 static jint GetEnvHandler(JavaVMExt* vm ATTRIBUTE_UNUSED, void** new_env, jint version) {
34 printf("%s called in test 900\n", __func__);
35 if (version != TEST_900_ENV_VERSION_NUMBER) {
36 return JNI_EVERSION;
37 }
38 printf("GetEnvHandler called with version 0x%x\n", version);
39 *new_env = reinterpret_cast<void*>(ENV_VALUE);
40 return JNI_OK;
41 }
42
ArtPlugin_Initialize()43 extern "C" bool ArtPlugin_Initialize() {
44 printf("%s called in test 900\n", __func__);
45 Runtime::Current()->GetJavaVM()->AddEnvironmentHook(GetEnvHandler);
46 return true;
47 }
48
ArtPlugin_Deinitialize()49 extern "C" bool ArtPlugin_Deinitialize() {
50 printf("%s called in test 900\n", __func__);
51 return true;
52 }
53
Agent_OnLoad(JavaVM * vm,char * options,void * reserved ATTRIBUTE_UNUSED)54 extern "C" JNIEXPORT jint JNICALL Agent_OnLoad(JavaVM* vm,
55 char* options,
56 void* reserved ATTRIBUTE_UNUSED) {
57 printf("Agent_OnLoad called with options \"%s\"\n", options);
58 if (strcmp("test_900_round_2", options) == 0) {
59 return 0;
60 }
61 uintptr_t env = 0;
62 jint res = vm->GetEnv(reinterpret_cast<void**>(&env), TEST_900_ENV_VERSION_NUMBER);
63 if (res != JNI_OK) {
64 printf("GetEnv(TEST_900_ENV_VERSION_NUMBER) returned non-zero\n");
65 }
66 printf("GetEnv returned '%" PRIdPTR "' environment!\n", env);
67 return 0;
68 }
69
Agent_OnUnload(JavaVM * vm ATTRIBUTE_UNUSED)70 extern "C" JNIEXPORT void JNICALL Agent_OnUnload(JavaVM* vm ATTRIBUTE_UNUSED) {
71 printf("Agent_OnUnload called\n");
72 }
73
74 } // namespace art
75