1 /*
2 * Copyright (c) 2007, 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 #include <stdlib.h>
24 #include <string.h>
25 #include "jvmti.h"
26 #include "agent_common.h"
27 #include "jni_tools.h"
28 #include "jvmti_tools.h"
29
30 extern "C" {
31
32 /* ============================================================================= */
33
34 static jlong timeout = 0;
35
36 #define STATUS_FAIL 97
37
38 #define EVENTS_COUNT 2
39
40 static jvmtiEvent events[EVENTS_COUNT] = {
41 JVMTI_EVENT_VM_INIT,
42 JVMTI_EVENT_VM_DEATH
43 };
44
45 static jvmtiCapabilities initCaps;
46
47 /* ============================================================================= */
48
49 /**
50 * Get and check current capabilities.
51 * @returns NSK_FALSE if any error occured.
52 */
53 static int checkCapabilities(jvmtiEnv* jvmti, jvmtiCapabilities* initCaps, const char where[]) {
54 int success = NSK_TRUE;
55 jvmtiCapabilities caps;
56
57 memset(&caps, 0, sizeof(jvmtiCapabilities));
58
59 NSK_DISPLAY0("GetCapabilities() for current JVMTI env\n");
60 if (!NSK_JVMTI_VERIFY(
61 NSK_CPP_STUB2(GetCapabilities, jvmti, &caps))) {
62 return NSK_FALSE;
63 }
64
65 return success;
66 }
67
68 /**
69 * Add given capabilities list.
70 * @returns NSK_FALSE if any error occured.
71 */
72 static int addCapabilities(jvmtiEnv* jvmti, jvmtiCapabilities* caps, const char where[]) {
73 NSK_DISPLAY0("AddCapabilities() for current JVMTI env\n");
74 if (!NSK_JVMTI_VERIFY(
75 NSK_CPP_STUB2(AddCapabilities, jvmti, caps))) {
76 return NSK_FALSE;
77 }
78 NSK_DISPLAY0(" ... set\n");
79
80 return NSK_TRUE;
81 }
82
83 /**
84 * Get potential capabilities to the given list.
85 * @returns NSK_FALSE if any error occured.
86 */
87 static int getPotentialCapabilities(jvmtiEnv* jvmti, jvmtiCapabilities* caps) {
88 NSK_DISPLAY0("GetPotentialCapabilities() for current JVMTI env\n");
89 if (!NSK_JVMTI_VERIFY(
90 NSK_CPP_STUB2(GetPotentialCapabilities, jvmti, caps))) {
91 return NSK_FALSE;
92 }
93
94 return NSK_TRUE;
95 }
96
97 /* ============================================================================= */
98
99 /** Agent algorithm. */
100 static void JNICALL
101 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
102 NSK_DISPLAY0("Wait for debugee to become ready\n");
103 if (!nsk_jvmti_waitForSync(timeout))
104 return;
105
106 NSK_DISPLAY0(">>> Testcase #3: Check capabilities in agent thread\n");
107 if (!checkCapabilities(jvmti, &initCaps, "agent thread")) {
108 nsk_jvmti_setFailStatus();
109 }
110
111 NSK_DISPLAY0("Let debugee to finish\n");
112 if (!nsk_jvmti_resumeSync())
113 return;
114 }
115
116 /* ============================================================================= */
117
118 /**
119 * Callback for VM_INIT event.
120 */
121 JNIEXPORT void JNICALL
122 callbackVMInit(jvmtiEnv* jvmti, JNIEnv* jni, jthread thread) {
123
124 NSK_DISPLAY0(">>> Testcase #2: Check capabilities in VM_INIT callback\n");
125 if (!checkCapabilities(jvmti, &initCaps, "VM_INIT callback")) {
126 nsk_jvmti_setFailStatus();
127 }
128
129 }
130
131 /**
132 * Callback for VM_DEATH event.
133 */
134 JNIEXPORT void JNICALL
135 callbackVMDeath(jvmtiEnv* jvmti, JNIEnv* jni) {
136 int success = NSK_TRUE;
137
138 NSK_DISPLAY0(">>> Testcase #4: Check capabilities in VM_DEATH callback\n");
139 success = checkCapabilities(jvmti, &initCaps, "VM_DEATH callback");
140
141 NSK_DISPLAY1("Disable events: %d events\n", EVENTS_COUNT);
142 if (!nsk_jvmti_enableEvents(JVMTI_DISABLE, EVENTS_COUNT, events, NULL)) {
143 success = NSK_FALSE;
144 } else {
145 NSK_DISPLAY0(" ... disabled\n");
146 }
147
148 if (!success) {
149 NSK_DISPLAY1("Exit with FAIL exit status: %d\n", STATUS_FAIL);
150 NSK_BEFORE_TRACE(exit(STATUS_FAIL));
151 }
152 }
153
154 /* ============================================================================= */
155
156 /** Agent library initialization. */
157 #ifdef STATIC_BUILD
158 JNIEXPORT jint JNICALL Agent_OnLoad_addcaps003(JavaVM *jvm, char *options, void *reserved) {
159 return Agent_Initialize(jvm, options, reserved);
160 }
161 JNIEXPORT jint JNICALL Agent_OnAttach_addcaps003(JavaVM *jvm, char *options, void *reserved) {
162 return Agent_Initialize(jvm, options, reserved);
163 }
164 JNIEXPORT jint JNI_OnLoad_addcaps003(JavaVM *jvm, char *options, void *reserved) {
165 return JNI_VERSION_1_8;
166 }
167 #endif
168 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
169 jvmtiEnv* jvmti = NULL;
170
171 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
172 return JNI_ERR;
173
174 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
175
176 if (!NSK_VERIFY((jvmti =
177 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
178 return JNI_ERR;
179
180 {
181 jvmtiEventCallbacks eventCallbacks;
182
183 memset(&eventCallbacks, 0, sizeof(eventCallbacks));
184 eventCallbacks.VMInit = callbackVMInit;
185 eventCallbacks.VMDeath = callbackVMDeath;
186 if (!NSK_JVMTI_VERIFY(
187 NSK_CPP_STUB3(SetEventCallbacks, jvmti,
188 &eventCallbacks, sizeof(eventCallbacks)))) {
189 return JNI_ERR;
190 }
191
192 }
193
194 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
195 return JNI_ERR;
196
197 memset(&initCaps, 0, sizeof(jvmtiCapabilities));
198 if (!getPotentialCapabilities(jvmti, &initCaps)) {
199 return JNI_ERR;
200 }
201
202 NSK_DISPLAY0(">>> Testcase #0: Add all potential capabilities in Agent_OnLoad()\n");
203 if (!addCapabilities(jvmti, &initCaps, "Agent_OnLoad()")) {
204 nsk_jvmti_setFailStatus();
205 }
206
207 NSK_DISPLAY0(">>> Testcase #1: Check capabilities in Agent_OnLoad()\n");
208 if (!checkCapabilities(jvmti, &initCaps, "Agent_OnLoad()")) {
209 nsk_jvmti_setFailStatus();
210 }
211
212 NSK_DISPLAY1("Enable events: %d events\n", EVENTS_COUNT);
213 if (nsk_jvmti_enableEvents(JVMTI_ENABLE, EVENTS_COUNT, events, NULL)) {
214 NSK_DISPLAY0(" ... enabled\n");
215 }
216
217 return JNI_OK;
218 }
219
220 /* ============================================================================= */
221
222 }