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 /* test objects */
41 static jthread thread = NULL;
42 static jmethodID method = NULL;
43 static int BreakpointEventsCount = 0;
44 static int FramePopEventsCount = 0;
45
46 /* ========================================================================== */
47
48 /** callback functions **/
49
50 static void JNICALL
51 Breakpoint(jvmtiEnv *jvmti_env, JNIEnv *jni_env,
52 jthread thread, jmethodID method, jlocation location) {
53 char *name = NULL;
54 char *signature = NULL;
55
56 BreakpointEventsCount++;
57 if (!NSK_JVMTI_VERIFY(jvmti_env->GetMethodName(method, &name, &signature, NULL))) {
58 nsk_jvmti_setFailStatus();
59 }
60
61 NSK_DISPLAY2("Breakpoint event: %s%s\n", name, signature);
62
63 if (name != NULL)
64 jvmti_env->Deallocate((unsigned char*)name);
65 if (signature != NULL)
66 jvmti_env->Deallocate((unsigned char*)signature);
67
68 switch(BreakpointEventsCount) {
69 case 1:
70 NSK_DISPLAY0("Testcase #1: FramePop in both agents\n");
71 break;
72
73 case 2:
74 NSK_DISPLAY0("Testcase #2: w/o NotifyFramePop in 2nd agent\n");
75 break;
76
77 case 3:
78 NSK_DISPLAY0("Testcase #3: FramePop disabled in 2nd agent\n");
79 break;
80
81 default:
82 NSK_COMPLAIN0("Should no reach here");
83 nsk_jvmti_setFailStatus();
84 break;
85 }
86
87 if (!NSK_JVMTI_VERIFY(jvmti_env->NotifyFramePop(thread, 0))) {
88 nsk_jvmti_setFailStatus();
89 }
90 }
91
92 static void JNICALL
93 FramePop(jvmtiEnv *jvmti_env, JNIEnv *jni_env,
94 jthread thread, jmethodID method,
95 jboolean wasPopedByException) {
96 char *name = NULL;
97 char *signature = NULL;
98
99 FramePopEventsCount++;
100 if (!NSK_JVMTI_VERIFY(jvmti_env->GetMethodName(method, &name, &signature, NULL))) {
101 nsk_jvmti_setFailStatus();
102 return;
103 }
104
105 NSK_DISPLAY2("FramePop event: %s%s\n", name, signature);
106
107 if (name != NULL)
108 jvmti_env->Deallocate((unsigned char*)name);
109 if (signature != NULL)
110 jvmti_env->Deallocate((unsigned char*)signature);
111 }
112
113 /* ========================================================================== */
114
115 static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
116 const char* THREAD_NAME = "Debuggee Thread";
117 jvmtiThreadInfo info;
118 jthread *threads = NULL;
119 jclass klass = NULL;
120 jint threads_count = 0;
121 int i;
122
123 NSK_DISPLAY0("Prepare: find tested thread\n");
124
125 /* get all live threads */
126 if (!NSK_JVMTI_VERIFY(jvmti->GetAllThreads(&threads_count, &threads)))
127 return NSK_FALSE;
128
129 if (!NSK_VERIFY(threads_count > 0 && threads != NULL))
130 return NSK_FALSE;
131
132 /* find tested thread */
133 for (i = 0; i < threads_count; i++) {
134 if (!NSK_VERIFY(threads[i] != NULL))
135 return NSK_FALSE;
136
137 /* get thread information */
138 if (!NSK_JVMTI_VERIFY(jvmti->GetThreadInfo(threads[i], &info)))
139 return NSK_FALSE;
140
141 NSK_DISPLAY3(" thread #%d (%s): %p\n", i, info.name, threads[i]);
142
143 /* find by name */
144 if (info.name != NULL && (strcmp(info.name, THREAD_NAME) == 0)) {
145 thread = threads[i];
146 }
147
148 if (info.name != NULL) {
149 if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)info.name)))
150 return NSK_FALSE;
151 }
152 }
153
154 /* deallocate threads list */
155 if (!NSK_JVMTI_VERIFY(jvmti->Deallocate((unsigned char*)threads)))
156 return NSK_FALSE;
157
158 if (thread == NULL) {
159 NSK_COMPLAIN0("Debuggee thread not found");
160 return NSK_FALSE;
161 }
162
163 if (!NSK_JNI_VERIFY(jni, (thread = jni->NewGlobalRef(thread)) != NULL))
164 return NSK_FALSE;
165
166 /* get tested thread class */
167 if (!NSK_JNI_VERIFY(jni, (klass = jni->GetObjectClass(thread)) != NULL))
168 return NSK_FALSE;
169
170 /* get tested thread method 'checkPoint' */
171 if (!NSK_JNI_VERIFY(jni, (method = jni->GetMethodID(klass, "checkPoint", "()V")) != NULL))
172 return NSK_FALSE;
173
174 if (!NSK_JVMTI_VERIFY(jvmti->SetBreakpoint(method, 0)))
175 return NSK_FALSE;
176
177 /* enable events */
178 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_BREAKPOINT, NULL)))
179 return NSK_FALSE;
180 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_FRAME_POP, NULL)))
181 return NSK_FALSE;
182
183 return NSK_TRUE;
184 }
185
186 /* ========================================================================== */
187
188 /** Agent algorithm. */
189 static void JNICALL
190 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
191
192 if (!nsk_jvmti_waitForSync(timeout))
193 return;
194
195 if (!prepare(jvmti, jni)) {
196 nsk_jvmti_setFailStatus();
197 return;
198 }
199
200 /* resume debugee and wait for sync */
201 if (!nsk_jvmti_resumeSync())
202 return;
203 if (!nsk_jvmti_waitForSync(timeout))
204 return;
205
206 if (FramePopEventsCount == 0) {
207 NSK_COMPLAIN0("No FramePop events\n");
208 nsk_jvmti_setFailStatus();
209 } else if (FramePopEventsCount != 3) {
210 NSK_COMPLAIN1("Some of FramePop events were missed: %d\n",
211 FramePopEventsCount);
212 nsk_jvmti_setFailStatus();
213 }
214
215 if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_DISABLE, JVMTI_EVENT_FRAME_POP, NULL)))
216 nsk_jvmti_setFailStatus();
217
218 NSK_TRACE(jvmti->ClearBreakpoint(method, 0));
219 NSK_TRACE(jni->DeleteGlobalRef(thread));
220
221 if (!nsk_jvmti_resumeSync())
222 return;
223 }
224
225 /* ========================================================================== */
226
227 /** Agent library initialization. */
228 #ifdef STATIC_BUILD
229 JNIEXPORT jint JNICALL Agent_OnLoad_ma05t001(JavaVM *jvm, char *options, void *reserved) {
230 return Agent_Initialize(jvm, options, reserved);
231 }
232 JNIEXPORT jint JNICALL Agent_OnAttach_ma05t001(JavaVM *jvm, char *options, void *reserved) {
233 return Agent_Initialize(jvm, options, reserved);
234 }
235 JNIEXPORT jint JNI_OnLoad_ma05t001(JavaVM *jvm, char *options, void *reserved) {
236 return JNI_VERSION_1_8;
237 }
238 #endif
239 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
240 jvmtiEnv* jvmti = NULL;
241 jvmtiEventCallbacks callbacks;
242 jvmtiCapabilities caps;
243
244 NSK_DISPLAY0("Agent_OnLoad\n");
245
246 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
247 return JNI_ERR;
248
249 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
250
251 if (!NSK_VERIFY((jvmti =
252 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
253 return JNI_ERR;
254
255 memset(&caps, 0, sizeof(caps));
256 caps.can_generate_breakpoint_events = 1;
257 caps.can_generate_frame_pop_events = 1;
258 if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps)))
259 return JNI_ERR;
260
261 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
262 return JNI_ERR;
263
264 memset(&callbacks, 0, sizeof(callbacks));
265 callbacks.Breakpoint = &Breakpoint;
266 callbacks.FramePop = &FramePop;
267 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
268 return JNI_ERR;
269
270 return JNI_OK;
271 }
272
273 /* ========================================================================== */
274
275 }