1 /*
2 * Copyright (c) 2004, 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 <stdlib.h>
25 #include <string.h>
26 #include "jni_tools.h"
27 #include "agent_common.h"
28 #include "jvmti_tools.h"
29
30 #define PASSED 0
31 #define STATUS_FAILED 2
32
33 extern "C" {
34
35 /* ========================================================================== */
36
37 /* scaffold objects */
38 static jlong timeout = 0;
39
40 /* event counts */
41 static int ExceptionEventsCount = 0;
42 static int ExceptionCatchEventsCount = 0;
43
44 /* ========================================================================== */
45
46 /** callback functions **/
47
48 static void JNICALL
49 Exception(jvmtiEnv *jvmti_env, JNIEnv *jni_env, jthread thread,
50 jmethodID method, jlocation location, jobject exception,
51 jmethodID catch_method, jlocation catch_location) {
52 jclass klass = NULL;
53 char *signature = NULL;
54
55 if (!isThreadExpected(jvmti_env, thread)) {
56 return;
57 }
58
59 ExceptionEventsCount++;
60
61 if (!NSK_JNI_VERIFY(jni_env, (klass = jni_env->GetObjectClass(exception)) != NULL)) {
62 nsk_jvmti_setFailStatus();
63 return;
64 }
65 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(klass, &signature, NULL))) {
66 nsk_jvmti_setFailStatus();
67 return;
68 }
69 NSK_DISPLAY1("Exception event: %s\n", signature);
70 if (signature != NULL)
71 jvmti_env->Deallocate((unsigned char*)signature);
72 }
73
74 void JNICALL
75 ExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv *jni_env, jthread thread,
76 jmethodID method, jlocation location, jobject exception) {
77 jclass klass = NULL;
78 char *signature = NULL;
79
80 if (!isThreadExpected(jvmti_env, thread)) {
81 return;
82 }
83
84 ExceptionCatchEventsCount++;
85
86 if (!NSK_JNI_VERIFY(jni_env, (klass = jni_env->GetObjectClass(exception)) != NULL)) {
87 nsk_jvmti_setFailStatus();
88 return;
89 }
90 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(klass, &signature, NULL))) {
91 nsk_jvmti_setFailStatus();
92 return;
93 }
94 NSK_DISPLAY1("ExceptionCatch event: %s\n", signature);
95 if (signature != NULL)
96 jvmti_env->Deallocate((unsigned char*)signature);
97 }
98
99 /* ========================================================================== */
100
101 /** Agent algorithm. */
102 static void JNICALL
103 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
104
105 if (!nsk_jvmti_waitForSync(timeout))
106 return;
107
108 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_EXCEPTION, NULL)))
109 nsk_jvmti_setFailStatus();
110 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_EXCEPTION_CATCH, NULL)))
111 nsk_jvmti_setFailStatus();
112
113 /* resume debugee and wait for sync */
114 if (!nsk_jvmti_resumeSync())
115 return;
116 if (!nsk_jvmti_waitForSync(timeout))
117 return;
118
119 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_DISABLE, JVMTI_EVENT_EXCEPTION, NULL)))
120 nsk_jvmti_setFailStatus();
121 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_DISABLE, JVMTI_EVENT_EXCEPTION_CATCH, NULL)))
122 nsk_jvmti_setFailStatus();
123
124 NSK_DISPLAY1("Exception events received: %d\n",
125 ExceptionEventsCount);
126 if (!NSK_VERIFY(ExceptionEventsCount == 3))
127 nsk_jvmti_setFailStatus();
128
129 NSK_DISPLAY1("ExceptionCatch events received: %d\n",
130 ExceptionCatchEventsCount);
131 if (!NSK_VERIFY(ExceptionCatchEventsCount == 3))
132 nsk_jvmti_setFailStatus();
133
134 if (!nsk_jvmti_resumeSync())
135 return;
136 }
137
138 /* ========================================================================== */
139
140 /** Agent library initialization. */
141 #ifdef STATIC_BUILD
142 JNIEXPORT jint JNICALL Agent_OnLoad_ma10t001(JavaVM *jvm, char *options, void *reserved) {
143 return Agent_Initialize(jvm, options, reserved);
144 }
145 JNIEXPORT jint JNICALL Agent_OnAttach_ma10t001(JavaVM *jvm, char *options, void *reserved) {
146 return Agent_Initialize(jvm, options, reserved);
147 }
148 JNIEXPORT jint JNI_OnLoad_ma10t001(JavaVM *jvm, char *options, void *reserved) {
149 return JNI_VERSION_1_8;
150 }
151 #endif
152 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
153 jvmtiEnv* jvmti = NULL;
154 jvmtiCapabilities caps;
155 jvmtiEventCallbacks callbacks;
156
157 NSK_DISPLAY0("Agent_OnLoad\n");
158
159 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
160 return JNI_ERR;
161
162 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
163
164 if (!NSK_VERIFY((jvmti =
165 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
166 return JNI_ERR;
167
168 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
169 return JNI_ERR;
170
171 memset(&caps, 0, sizeof(caps));
172 caps.can_generate_exception_events = 1;
173 if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) {
174 return JNI_ERR;
175 }
176
177 memset(&callbacks, 0, sizeof(callbacks));
178 callbacks.Exception = &Exception;
179 callbacks.ExceptionCatch = &ExceptionCatch;
180 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
181 return JNI_ERR;
182
183 return JNI_OK;
184 }
185
186 /* ========================================================================== */
187
188 }