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 =
58 NSK_CPP_STUB2(GetObjectClass, jni_env, exception)) != NULL)) {
59 nsk_jvmti_setFailStatus();
60 return;
61 }
62 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(GetClassSignature, jvmti_env,
63 klass, &signature, NULL))) {
64 nsk_jvmti_setFailStatus();
65 return;
66 }
67 NSK_DISPLAY1("Exception event: %s\n", signature);
68 if (signature != NULL)
69 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature);
70 }
71
72 void JNICALL
73 ExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv *jni_env, jthread thread,
74 jmethodID method, jlocation location, jobject exception) {
75 jclass klass = NULL;
76 char *signature = NULL;
77
78 ExceptionCatchEventsCount++;
79
80 if (!NSK_JNI_VERIFY(jni_env, (klass =
81 NSK_CPP_STUB2(GetObjectClass, jni_env, exception)) != NULL)) {
82 nsk_jvmti_setFailStatus();
83 return;
84 }
85 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(GetClassSignature, jvmti_env,
86 klass, &signature, NULL))) {
87 nsk_jvmti_setFailStatus();
88 return;
89 }
90 NSK_DISPLAY1("ExceptionCatch event: %s\n", signature);
91 if (signature != NULL)
92 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature);
93 }
94
95 /* ========================================================================== */
96
97 /** Agent algorithm. */
98 static void JNICALL
99 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
100
101 if (!nsk_jvmti_waitForSync(timeout))
102 return;
103
104 /* resume debugee and wait for sync */
105 if (!nsk_jvmti_resumeSync())
106 return;
107 if (!nsk_jvmti_waitForSync(timeout))
108 return;
109
110 NSK_DISPLAY1("Exception events received: %d\n",
111 ExceptionEventsCount);
112 if (!NSK_VERIFY(ExceptionEventsCount == 0))
113 nsk_jvmti_setFailStatus();
114
115 NSK_DISPLAY1("ExceptionCatch events received: %d\n",
116 ExceptionCatchEventsCount);
117 if (!NSK_VERIFY(ExceptionCatchEventsCount == 0))
118 nsk_jvmti_setFailStatus();
119
120 if (!nsk_jvmti_resumeSync())
121 return;
122 }
123
124 /* ========================================================================== */
125
126 /** Agent library initialization. */
127 #ifdef STATIC_BUILD
128 JNIEXPORT jint JNICALL Agent_OnLoad_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
129 return Agent_Initialize(jvm, options, reserved);
130 }
131 JNIEXPORT jint JNICALL Agent_OnAttach_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
132 return Agent_Initialize(jvm, options, reserved);
133 }
134 JNIEXPORT jint JNI_OnLoad_ma10t001a(JavaVM *jvm, char *options, void *reserved) {
135 return JNI_VERSION_1_8;
136 }
137 #endif
138 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
139 jvmtiEnv* jvmti = NULL;
140 jvmtiCapabilities caps;
141 jvmtiEventCallbacks callbacks;
142
143 NSK_DISPLAY0("Agent_OnLoad\n");
144
145 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
146 return JNI_ERR;
147
148 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
149
150 if (!NSK_VERIFY((jvmti =
151 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
152 return JNI_ERR;
153
154 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
155 return JNI_ERR;
156
157 memset(&caps, 0, sizeof(caps));
158 caps.can_generate_exception_events = 1;
159 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps))) {
160 return JNI_ERR;
161 }
162
163 memset(&callbacks, 0, sizeof(callbacks));
164 callbacks.Exception = &Exception;
165 callbacks.ExceptionCatch = &ExceptionCatch;
166 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
167 return JNI_ERR;
168
169 return JNI_OK;
170 }
171
172 /* ========================================================================== */
173
174 }