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(NSK_CPP_STUB5(GetMethodName,
58 jvmti_env, method, &name, &signature, NULL))) {
59 nsk_jvmti_setFailStatus();
60 }
61
62 NSK_DISPLAY2("Breakpoint event: %s%s\n", name, signature);
63
64 if (name != NULL)
65 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name);
66 if (signature != NULL)
67 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature);
68
69 switch(BreakpointEventsCount) {
70 case 1:
71 NSK_DISPLAY0("Testcase #1: FramePop in both agents\n");
72 break;
73
74 case 2:
75 NSK_DISPLAY0("Testcase #2: w/o NotifyFramePop in 2nd agent\n");
76 break;
77
78 case 3:
79 NSK_DISPLAY0("Testcase #3: FramePop disabled in 2nd agent\n");
80 break;
81
82 default:
83 NSK_COMPLAIN0("Should no reach here");
84 nsk_jvmti_setFailStatus();
85 break;
86 }
87
88 if (!NSK_JVMTI_VERIFY(
89 NSK_CPP_STUB3(NotifyFramePop, jvmti_env, thread, 0))) {
90 nsk_jvmti_setFailStatus();
91 }
92 }
93
94 static void JNICALL
95 FramePop(jvmtiEnv *jvmti_env, JNIEnv *jni_env,
96 jthread thread, jmethodID method,
97 jboolean wasPopedByException) {
98 char *name = NULL;
99 char *signature = NULL;
100
101 FramePopEventsCount++;
102 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName,
103 jvmti_env, method, &name, &signature, NULL))) {
104 nsk_jvmti_setFailStatus();
105 return;
106 }
107
108 NSK_DISPLAY2("FramePop event: %s%s\n", name, signature);
109
110 if (name != NULL)
111 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)name);
112 if (signature != NULL)
113 NSK_CPP_STUB2(Deallocate, jvmti_env, (unsigned char*)signature);
114 }
115
116 /* ========================================================================== */
117
118 static int prepare(jvmtiEnv* jvmti, JNIEnv* jni) {
119 const char* THREAD_NAME = "Debuggee Thread";
120 jvmtiThreadInfo info;
121 jthread *threads = NULL;
122 jclass klass = NULL;
123 jint threads_count = 0;
124 int i;
125
126 NSK_DISPLAY0("Prepare: find tested thread\n");
127
128 /* get all live threads */
129 if (!NSK_JVMTI_VERIFY(
130 NSK_CPP_STUB3(GetAllThreads, jvmti, &threads_count, &threads)))
131 return NSK_FALSE;
132
133 if (!NSK_VERIFY(threads_count > 0 && threads != NULL))
134 return NSK_FALSE;
135
136 /* find tested thread */
137 for (i = 0; i < threads_count; i++) {
138 if (!NSK_VERIFY(threads[i] != NULL))
139 return NSK_FALSE;
140
141 /* get thread information */
142 if (!NSK_JVMTI_VERIFY(
143 NSK_CPP_STUB3(GetThreadInfo, jvmti, threads[i], &info)))
144 return NSK_FALSE;
145
146 NSK_DISPLAY3(" thread #%d (%s): %p\n", i, info.name, threads[i]);
147
148 /* find by name */
149 if (info.name != NULL && (strcmp(info.name, THREAD_NAME) == 0)) {
150 thread = threads[i];
151 }
152
153 if (info.name != NULL) {
154 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(
155 Deallocate, jvmti, (unsigned char*)info.name)))
156 return NSK_FALSE;
157 }
158 }
159
160 /* deallocate threads list */
161 if (!NSK_JVMTI_VERIFY(
162 NSK_CPP_STUB2(Deallocate, jvmti, (unsigned char*)threads)))
163 return NSK_FALSE;
164
165 if (thread == NULL) {
166 NSK_COMPLAIN0("Debuggee thread not found");
167 return NSK_FALSE;
168 }
169
170 if (!NSK_JNI_VERIFY(jni, (thread =
171 NSK_CPP_STUB2(NewGlobalRef, jni, thread)) != NULL))
172 return NSK_FALSE;
173
174 /* get tested thread class */
175 if (!NSK_JNI_VERIFY(jni, (klass =
176 NSK_CPP_STUB2(GetObjectClass, jni, thread)) != NULL))
177 return NSK_FALSE;
178
179 /* get tested thread method 'checkPoint' */
180 if (!NSK_JNI_VERIFY(jni, (method = NSK_CPP_STUB4(
181 GetMethodID, jni, klass, "checkPoint", "()V")) != NULL))
182 return NSK_FALSE;
183
184 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetBreakpoint, jvmti, method, 0)))
185 return NSK_FALSE;
186
187 /* enable events */
188 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
189 jvmti, JVMTI_ENABLE, JVMTI_EVENT_BREAKPOINT, NULL)))
190 return NSK_FALSE;
191 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
192 jvmti, JVMTI_ENABLE, JVMTI_EVENT_FRAME_POP, NULL)))
193 return NSK_FALSE;
194
195 return NSK_TRUE;
196 }
197
198 /* ========================================================================== */
199
200 /** Agent algorithm. */
201 static void JNICALL
202 agentProc(jvmtiEnv* jvmti, JNIEnv* jni, void* arg) {
203
204 if (!nsk_jvmti_waitForSync(timeout))
205 return;
206
207 if (!prepare(jvmti, jni)) {
208 nsk_jvmti_setFailStatus();
209 return;
210 }
211
212 /* resume debugee and wait for sync */
213 if (!nsk_jvmti_resumeSync())
214 return;
215 if (!nsk_jvmti_waitForSync(timeout))
216 return;
217
218 if (FramePopEventsCount == 0) {
219 NSK_COMPLAIN0("No FramePop events\n");
220 nsk_jvmti_setFailStatus();
221 } else if (FramePopEventsCount != 3) {
222 NSK_COMPLAIN1("Some of FramePop events were missed: %d\n",
223 FramePopEventsCount);
224 nsk_jvmti_setFailStatus();
225 }
226
227 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
228 jvmti, JVMTI_DISABLE, JVMTI_EVENT_FRAME_POP, NULL)))
229 nsk_jvmti_setFailStatus();
230
231 NSK_TRACE(NSK_CPP_STUB3(ClearBreakpoint, jvmti, method, 0));
232 NSK_TRACE(NSK_CPP_STUB2(DeleteGlobalRef, jni, thread));
233
234 if (!nsk_jvmti_resumeSync())
235 return;
236 }
237
238 /* ========================================================================== */
239
240 /** Agent library initialization. */
241 #ifdef STATIC_BUILD
242 JNIEXPORT jint JNICALL Agent_OnLoad_ma05t001(JavaVM *jvm, char *options, void *reserved) {
243 return Agent_Initialize(jvm, options, reserved);
244 }
245 JNIEXPORT jint JNICALL Agent_OnAttach_ma05t001(JavaVM *jvm, char *options, void *reserved) {
246 return Agent_Initialize(jvm, options, reserved);
247 }
248 JNIEXPORT jint JNI_OnLoad_ma05t001(JavaVM *jvm, char *options, void *reserved) {
249 return JNI_VERSION_1_8;
250 }
251 #endif
252 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
253 jvmtiEnv* jvmti = NULL;
254 jvmtiEventCallbacks callbacks;
255 jvmtiCapabilities caps;
256
257 NSK_DISPLAY0("Agent_OnLoad\n");
258
259 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
260 return JNI_ERR;
261
262 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
263
264 if (!NSK_VERIFY((jvmti =
265 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
266 return JNI_ERR;
267
268 memset(&caps, 0, sizeof(caps));
269 caps.can_generate_breakpoint_events = 1;
270 caps.can_generate_frame_pop_events = 1;
271 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities, jvmti, &caps)))
272 return JNI_ERR;
273
274 if (!NSK_VERIFY(nsk_jvmti_setAgentProc(agentProc, NULL)))
275 return JNI_ERR;
276
277 memset(&callbacks, 0, sizeof(callbacks));
278 callbacks.Breakpoint = &Breakpoint;
279 callbacks.FramePop = &FramePop;
280 if (!NSK_VERIFY(nsk_jvmti_init_MA(&callbacks)))
281 return JNI_ERR;
282
283 return JNI_OK;
284 }
285
286 /* ========================================================================== */
287
288 }