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