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 ExceptionEventsCount++;
56
57 if (!NSK_JNI_VERIFY(jni_env, (klass = jni_env->GetObjectClass(exception)) != NULL)) {
58 nsk_jvmti_setFailStatus();
59 return;
60 }
61 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(klass, &signature, NULL))) {
62 nsk_jvmti_setFailStatus();
63 return;
64 }
65 NSK_DISPLAY1("Exception event: %s\n", signature);
66 if (signature != NULL)
67 jvmti_env->Deallocate((unsigned char*)signature);
68 }
69
70 void JNICALL
71 ExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv *jni_env, jthread thread,
72 jmethodID method, jlocation location, jobject exception) {
73 jclass klass = NULL;
74 char *signature = NULL;
75
76 ExceptionCatchEventsCount++;
77
78 if (!NSK_JNI_VERIFY(jni_env, (klass = jni_env->GetObjectClass(exception)) != NULL)) {
79 nsk_jvmti_setFailStatus();
80 return;
81 }
82 if (!NSK_JVMTI_VERIFY(jvmti_env->GetClassSignature(klass, &signature, NULL))) {
83 nsk_jvmti_setFailStatus();
84 return;
85 }
86 NSK_DISPLAY1("ExceptionCatch event: %s\n", signature);
87 if (signature != NULL)
88 jvmti_env->Deallocate((unsigned char*)signature);
89 }
90
91 /* ========================================================================== */
92
93 /** Agent algorithm. */
94 static void JNICALL
95 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
96
97 if (!nsk_jvmti_waitForSync(timeout))
98 return;
99
100 /* resume debugee and wait for sync */
101 if (!nsk_jvmti_resumeSync())
102 return;
103 if (!nsk_jvmti_waitForSync(timeout))
104 return;
105
106 NSK_DISPLAY1("Exception events received: %d\n",
107 ExceptionEventsCount);
108 if (!NSK_VERIFY(ExceptionEventsCount == 0))
109 nsk_jvmti_setFailStatus();
110
111 NSK_DISPLAY1("ExceptionCatch events received: %d\n",
112 ExceptionCatchEventsCount);
113 if (!NSK_VERIFY(ExceptionCatchEventsCount == 0))
114 nsk_jvmti_setFailStatus();
115
116 if (!nsk_jvmti_resumeSync())
117 return;
118 }
119
120 /* ========================================================================== */
121
122 /** Agent library initialization. */
123 #ifdef STATIC_BUILD
124 JNIEXPORT jint JNICALL Agent_OnLoad_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
125 return Agent_Initialize(jvm, options, reserved);
126 }
127 JNIEXPORT jint JNICALL Agent_OnAttach_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
128 return Agent_Initialize(jvm, options, reserved);
129 }
130 JNIEXPORT jint JNI_OnLoad_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
131 return JNI_VERSION_1_8;
132 }
133 #endif
134 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
135 jvmtiEnv* jvmti = NULL;
136 jvmtiCapabilities caps;
137 jvmtiEventCallbacks callbacks;
138
139 NSK_DISPLAY0("Agent_OnLoad\n");
140
141 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
142 return JNI_ERR;
143
144 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
145
146 if (!NSK_VERIFY((jvmti =
147 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
148 return JNI_ERR;
149
150 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
151 return JNI_ERR;
152
153 memset(&caps, 0, sizeof(caps));
154 caps.can_generate_exception_events = 1;
155 if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps))) {
156 return JNI_ERR;
157 }
158
159 memset(&callbacks, 0, sizeof(callbacks));
160 callbacks.Exception = &Exception;
161 callbacks.ExceptionCatch = &ExceptionCatch;
162 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
163 return JNI_ERR;
164
165 return JNI_OK;
166 }
167
168 /* ========================================================================== */
169
170 }