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 extern "C" {
30
31
32 #define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); return res;}
33 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}
34
35 #define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); iGlobalStatus = 2; }
36
37 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); iGlobalStatus = 2; }
38
39 #define THREADS_LIMIT 2000
40
41
42 jvmtiEnv *jvmti;
43 jint iGlobalStatus = 0;
44 jthread susp_thrd[THREADS_LIMIT];
45 static jvmtiEventCallbacks callbacks;
46 static jvmtiCapabilities jvmti_caps;
47 jrawMonitorID jraw_monitor[20];
48
49 int process_once = 0;
50
51
52
53 int printdump = 0;
54
55
56 void debug_printf(const char *fmt, ...) {
57 va_list args;
58
59 va_start(args, fmt);
60 if (printdump) {
61 vprintf(fmt, args);
62 }
63 va_end(args);
64 }
65
66
67 void JNICALL vmInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread) {
68
69 debug_printf("VMInit event done\n");
70
71 }
72
73 void JNICALL vmExit(jvmtiEnv *jvmti_env, JNIEnv *env) {
74 debug_printf("------------ JVMTI_EVENT_VM_DEATH ------------\n");
75 }
76
77 void JNICALL classFileLoadEvent(jvmtiEnv *jvmti_env, JNIEnv *env,
78 jclass class_being_redifined,
79 jobject loader, const char* name,
80 jobject protection_domain,
81 jint class_data_len,
82 const unsigned char* class_data,
83 jint* new_class_data_len,
84 unsigned char** new_class_data) {
85
86 }
87
88
89
90 void init_callbacks() {
91 memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));
92 callbacks.VMInit = vmInit;
93 callbacks.VMDeath = vmExit;
94 callbacks.ClassFileLoadHook = classFileLoadEvent;
95 }
96
97
98 #ifdef STATIC_BUILD
99 JNIEXPORT jint JNICALL Agent_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
100 return Agent_Initialize(jvm, options, reserved);
101 }
102 JNIEXPORT jint JNICALL Agent_OnAttach_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
103 return Agent_Initialize(jvm, options, reserved);
104 }
105 JNIEXPORT jint JNI_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
106 return JNI_VERSION_1_8;
107 }
108 #endif
109 jint Agent_Initialize(JavaVM * jvm, char *options, void *reserved) {
110 jint res;
111
112 if (options && strlen(options) > 0) {
113 if (strstr(options, "printdump")) {
114 printdump = 1;
115 }
116 }
117
118 res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
119 if (res < 0) {
120 debug_printf("Wrong result of a valid call to GetEnv!\n");
121 return JNI_ERR;
122 }
123
124
125 /* Add capabilities */
126 res = jvmti->GetPotentialCapabilities(&jvmti_caps);
127 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
128
129 res = jvmti->AddCapabilities(&jvmti_caps);
130 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
131
132 /* Enable events */
133 init_callbacks();
134 res = jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks));
135 JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);
136
137 res = jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_VM_INIT, NULL);
138 JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);
139
140 res = jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL);
141 JVMTI_ERROR_CHECK("SetEventNotificationMode for vm death event returned error", res);
142
143 return JNI_OK;
144 }
145
146
147 JNIEXPORT jint JNICALL
148 Java_nsk_jvmti_unit_functions_nosuspendMonitorInfo_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {
149 return iGlobalStatus;
150 }
151
152 JNIEXPORT void JNICALL
153 Java_nsk_jvmti_unit_functions_nosuspendMonitorInfo_JvmtiTest_CheckMonitorInfo(JNIEnv * env, jclass cls, jthread thr, jobject oobj, jint expected_count) {
154
155 jvmtiError ret;
156 jint count;
157 jobject *owned_monitor;
158
159 debug_printf(" jvmti GetMonitorInfo \n");
160
161
162 ret = jvmti->GetOwnedMonitorInfo(thr, &count, &owned_monitor);
163 if (ret != JVMTI_ERROR_NONE) {
164 printf("Error: GetMonitorInfo %d \n", ret);
165 iGlobalStatus = 2;
166 }
167
168 if (expected_count != 0 && expected_count != count) {
169 printf("Error: GetMonitorInfo expected count %d but got %d \n", expected_count, count);
170 iGlobalStatus = 2;
171 }
172
173 if (expected_count !=0) {
174
175 ret = jvmti->GetCurrentContendedMonitor(thr, owned_monitor);
176 if (ret != JVMTI_ERROR_NONE) {
177 printf("Error: GetContendedMonitorInfo %d \n", ret);
178 iGlobalStatus = 2;
179 }
180 }
181
182 }
183
184 }