1 /*
2 * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 #include <stdio.h>
25 #include <string.h>
26 #include "jvmti.h"
27 #include "agent_common.h"
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #ifndef JNI_ENV_ARG
34
35 #ifdef __cplusplus
36 #define JNI_ENV_ARG(x, y) y
37 #define JNI_ENV_ARG1(x)
38 #define JNI_ENV_PTR(x) x
39 #else
40 #define JNI_ENV_ARG(x,y) x, y
41 #define JNI_ENV_ARG1(x) x
42 #define JNI_ENV_PTR(x) (*x)
43 #endif
44
45 #endif
46
47 #define JVMTI_ENV_ARG JNI_ENV_ARG
48 #define JVMTI_ENV_ARG1 JNI_ENV_ARG1
49 #define JVMTI_ENV_PTR JNI_ENV_PTR
50
51 #define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); return res;}
52 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}
53
54 #define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); iGlobalStatus = 2; }
55
56 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); iGlobalStatus = 2; }
57
58 #define THREADS_LIMIT 2000
59
60
61 jvmtiEnv *jvmti;
62 jint iGlobalStatus = 0;
63 jthread susp_thrd[THREADS_LIMIT];
64 static jvmtiEventCallbacks callbacks;
65 static jvmtiCapabilities jvmti_caps;
66 jrawMonitorID jraw_monitor[20];
67
68 int process_once = 0;
69
70
71
72 int printdump = 0;
73
74
75 void debug_printf(const char *fmt, ...) {
76 va_list args;
77
78 va_start(args, fmt);
79 if (printdump) {
80 vprintf(fmt, args);
81 }
82 va_end(args);
83 }
84
85
86 void JNICALL vmInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread) {
87
88 debug_printf("VMInit event done\n");
89
90 }
91
92 void JNICALL vmExit(jvmtiEnv *jvmti_env, JNIEnv *env) {
93 debug_printf("------------ JVMTI_EVENT_VM_DEATH ------------\n");
94 }
95
96 void JNICALL classFileLoadEvent(jvmtiEnv *jvmti_env, JNIEnv *env,
97 jclass class_being_redifined,
98 jobject loader, const char* name,
99 jobject protection_domain,
100 jint class_data_len,
101 const unsigned char* class_data,
102 jint* new_class_data_len,
103 unsigned char** new_class_data) {
104
105 }
106
107
108
109 void init_callbacks() {
110 memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));
111 callbacks.VMInit = vmInit;
112 callbacks.VMDeath = vmExit;
113 callbacks.ClassFileLoadHook = classFileLoadEvent;
114 }
115
116
117 #ifdef STATIC_BUILD
118 JNIEXPORT jint JNICALL Agent_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
119 return Agent_Initialize(jvm, options, reserved);
120 }
121 JNIEXPORT jint JNICALL Agent_OnAttach_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
122 return Agent_Initialize(jvm, options, reserved);
123 }
124 JNIEXPORT jint JNI_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
125 return JNI_VERSION_1_8;
126 }
127 #endif
128 jint Agent_Initialize(JavaVM * jvm, char *options, void *reserved) {
129 jint res;
130
131 if (options && strlen(options) > 0) {
132 if (strstr(options, "printdump")) {
133 printdump = 1;
134 }
135 }
136
137 res = JNI_ENV_PTR(jvm)->
138 GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), JVMTI_VERSION_1_1);
139 if (res < 0) {
140 debug_printf("Wrong result of a valid call to GetEnv!\n");
141 return JNI_ERR;
142 }
143
144
145 /* Add capabilities */
146 res = JVMTI_ENV_PTR(jvmti)->GetPotentialCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
147 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
148
149 res = JVMTI_ENV_PTR(jvmti)->AddCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
150 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
151
152 /* Enable events */
153 init_callbacks();
154 res = JVMTI_ENV_PTR(jvmti)->SetEventCallbacks(JVMTI_ENV_ARG(jvmti, &callbacks), sizeof(callbacks));
155 JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);
156
157 res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_INIT,NULL);
158 JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);
159
160 res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_DEATH,NULL);
161 JVMTI_ERROR_CHECK("SetEventNotificationMode for vm death event returned error", res);
162
163 return JNI_OK;
164 }
165
166
167 JNIEXPORT jint JNICALL
168 Java_nsk_jvmti_unit_functions_nosuspendMonitorInfo_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {
169 return iGlobalStatus;
170 }
171
172 JNIEXPORT void JNICALL
173 Java_nsk_jvmti_unit_functions_nosuspendMonitorInfo_JvmtiTest_CheckMonitorInfo(JNIEnv * env, jclass cls, jthread thr, jobject oobj, jint expected_count) {
174
175 jvmtiError ret;
176 jint count;
177 jobject *owned_monitor;
178
179 debug_printf(" jvmti GetMonitorInfo \n");
180
181
182 ret = JVMTI_ENV_PTR(jvmti)->GetOwnedMonitorInfo(JVMTI_ENV_ARG(jvmti, thr), &count , &owned_monitor);
183 if (ret != JVMTI_ERROR_NONE) {
184 printf("Error: GetMonitorInfo %d \n", ret);
185 iGlobalStatus = 2;
186 }
187
188 if (expected_count != 0 && expected_count != count) {
189 printf("Error: GetMonitorInfo expected count %d but got %d \n", expected_count, count);
190 iGlobalStatus = 2;
191 }
192
193 if (expected_count !=0 ) {
194
195 ret = JVMTI_ENV_PTR(jvmti)->GetCurrentContendedMonitor(JVMTI_ENV_ARG(jvmti, thr), owned_monitor);
196 if (ret != JVMTI_ERROR_NONE) {
197 printf("Error: GetContendedMonitorInfo %d \n", ret);
198 iGlobalStatus = 2;
199 }
200 }
201
202 }
203
204 #ifdef __cplusplus
205 }
206 #endif