1 /*
2 * Copyright (c) 2003, 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 <stdio.h>
25 #include <string.h>
26 #include "jvmti.h"
27 #include "agent_common.h"
28
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32
33 #ifndef JNI_ENV_ARG
34
35 #ifdef __cplusplus
36 #define JNI_ENV_ARG(x, y) y
37 #define JNI_ENV_ARG1(x)
38 #define JNI_ENV_PTR(x) x
39 #else
40 #define JNI_ENV_ARG(x,y) x, y
41 #define JNI_ENV_ARG1(x) x
42 #define JNI_ENV_PTR(x) (*x)
43 #endif
44
45 #endif
46
47 #define JVMTI_ENV_ARG JNI_ENV_ARG
48 #define JVMTI_ENV_ARG1 JNI_ENV_ARG1
49 #define JVMTI_ENV_PTR JNI_ENV_PTR
50
51 #define JVMTI_ERROR_CHECK(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); return res;}
52 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); return res;}
53
54 #define JVMTI_ERROR_CHECK_VOID(str,res) if ( res != JVMTI_ERROR_NONE) { printf(str); printf("%d\n",res); iGlobalStatus = 2; }
55
56 #define JVMTI_ERROR_CHECK_EXPECTED_ERROR_VOID(str,res,err) if ( res != err) { printf(str); printf("unexpected error %d\n",res); iGlobalStatus = 2; }
57
58 #define THREADS_LIMIT 2000
59
60
61 jvmtiEnv *jvmti;
62 jint iGlobalStatus = 0;
63 jthread susp_thrd[THREADS_LIMIT];
64 static jvmtiEventCallbacks callbacks;
65 static jvmtiCapabilities jvmti_caps;
66 jrawMonitorID jraw_monitor[20];
67
68 int process_once = 0;
69
70
71
72 int printdump = 0;
73
74
75 void debug_printf(const char *fmt, ...) {
76 va_list args;
77
78 va_start(args, fmt);
79 if (printdump) {
80 vprintf(fmt, args);
81 }
82 va_end(args);
83 }
84
85
86 void JNICALL vmInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread) {
87
88 debug_printf("VMInit event done\n");
89
90 }
91
92 void JNICALL vmExit(jvmtiEnv *jvmti_env, JNIEnv *env) {
93 debug_printf("------------ JVMTI_EVENT_VM_DEATH ------------\n");
94 }
95
96 void JNICALL classFileLoadEvent(jvmtiEnv *jvmti_env, JNIEnv *env,
97 jclass class_being_redifined,
98 jobject loader, const char* name,
99 jobject protection_domain,
100 jint class_data_len,
101 const unsigned char* class_data,
102 jint* new_class_data_len,
103 unsigned char** new_class_data) {
104
105 }
106
107
108
109 void init_callbacks() {
110 memset((void *)&callbacks, 0, sizeof(jvmtiEventCallbacks));
111 callbacks.VMInit = vmInit;
112 callbacks.VMDeath = vmExit;
113 callbacks.ClassFileLoadHook = classFileLoadEvent;
114 }
115
116
117 #ifdef STATIC_BUILD
118 JNIEXPORT jint JNICALL Agent_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
119 return Agent_Initialize(jvm, options, reserved);
120 }
121 JNIEXPORT jint JNICALL Agent_OnAttach_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
122 return Agent_Initialize(jvm, options, reserved);
123 }
124 JNIEXPORT jint JNI_OnLoad_JvmtiTest(JavaVM *jvm, char *options, void *reserved) {
125 return JNI_VERSION_1_8;
126 }
127 #endif
128 jint Agent_Initialize(JavaVM * jvm, char *options, void *reserved) {
129 jint res;
130
131 if (options && strlen(options) > 0) {
132 if (strstr(options, "printdump")) {
133 printdump = 1;
134 }
135 }
136
137 res = JNI_ENV_PTR(jvm)->
138 GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti), JVMTI_VERSION_1_1);
139 if (res < 0) {
140 debug_printf("Wrong result of a valid call to GetEnv!\n");
141 return JNI_ERR;
142 }
143
144
145 /* Add capabilities */
146 res = JVMTI_ENV_PTR(jvmti)->GetPotentialCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
147 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
148
149 res = JVMTI_ENV_PTR(jvmti)->AddCapabilities(JVMTI_ENV_ARG(jvmti, &jvmti_caps));
150 JVMTI_ERROR_CHECK("GetPotentialCapabilities returned error", res);
151
152 /* Enable events */
153 init_callbacks();
154 res = JVMTI_ENV_PTR(jvmti)->SetEventCallbacks(JVMTI_ENV_ARG(jvmti, &callbacks), sizeof(callbacks));
155 JVMTI_ERROR_CHECK("SetEventCallbacks returned error", res);
156
157 res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_INIT,NULL);
158 JVMTI_ERROR_CHECK("SetEventNotificationMode for VM_INIT returned error", res);
159
160 res = JVMTI_ENV_PTR(jvmti)->SetEventNotificationMode(JVMTI_ENV_ARG(jvmti,JVMTI_ENABLE),JVMTI_EVENT_VM_DEATH,NULL);
161 JVMTI_ERROR_CHECK("SetEventNotificationMode for vm death event returned error", res);
162
163 return JNI_OK;
164 }
165
166
167 JNIEXPORT jint JNICALL
168 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_GetResult(JNIEnv * env, jclass cls) {
169 return iGlobalStatus;
170 }
171
172
173 JNIEXPORT void JNICALL
174 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_CreateRawMonitor(JNIEnv * env, jclass cls, jint i) {
175 jvmtiError ret;
176 char sz[128];
177
178 sprintf(sz, "Rawmonitor-%d",i);
179 debug_printf("jvmti create raw monitor \n");
180 ret = JVMTI_ENV_PTR(jvmti)->CreateRawMonitor(JVMTI_ENV_ARG(jvmti, sz), &jraw_monitor[i]);
181
182 if (ret != JVMTI_ERROR_NONE) {
183 printf("Error: ForceGarbageCollection %d \n", ret);
184 iGlobalStatus = 2;
185 }
186 }
187
188 JNIEXPORT void JNICALL
189 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_RawMonitorEnter(JNIEnv * env, jclass cls, jint i) {
190 jvmtiError ret;
191
192 debug_printf("jvmti Raw monitor enter \n");
193 ret = JVMTI_ENV_PTR(jvmti)->RawMonitorEnter(JVMTI_ENV_ARG(jvmti, jraw_monitor[i]));
194
195 if (ret != JVMTI_ERROR_NONE) {
196 printf("Error: Raw monitor enter %d \n", ret);
197 iGlobalStatus = 2;
198 }
199 }
200
201 JNIEXPORT void JNICALL
202 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_RawMonitorExit(JNIEnv * env, jclass cls, jint i) {
203 jvmtiError ret;
204
205 debug_printf("jvmti raw monitor exit \n");
206 ret = JVMTI_ENV_PTR(jvmti)->RawMonitorExit(JVMTI_ENV_ARG(jvmti, jraw_monitor[i]));
207
208 if (ret != JVMTI_ERROR_NONE) {
209 printf("Error: RawMonitorExit %d \n", ret);
210 iGlobalStatus = 2;
211 }
212 }
213
214 JNIEXPORT void JNICALL
215 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_RawMonitorWait(JNIEnv * env, jclass cls, jint i) {
216 jvmtiError ret;
217
218 debug_printf("jvmti RawMonitorWait \n");
219 ret = JVMTI_ENV_PTR(jvmti)->RawMonitorWait(JVMTI_ENV_ARG(jvmti,jraw_monitor[i]),-1);
220
221 if (ret != JVMTI_ERROR_NONE) {
222 printf("Error: RawMonitorWait %d \n", ret);
223 iGlobalStatus = 2;
224 }
225 }
226
227 JNIEXPORT void JNICALL
228 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_RawMonitorNotify(JNIEnv * env, jclass cls, jint i) {
229 jvmtiError ret;
230
231 debug_printf("jvmti RawMonitorNotify \n");
232 ret = JVMTI_ENV_PTR(jvmti)->RawMonitorNotifyAll(JVMTI_ENV_ARG(jvmti,jraw_monitor[i]));
233
234 if (ret != JVMTI_ERROR_NONE) {
235 printf("Error: RawMonitorNotify %d \n", ret);
236 iGlobalStatus = 2;
237 }
238 }
239
240 JNIEXPORT int JNICALL
241 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_GetFrameCount(JNIEnv * env, jclass cls, jobject thr) {
242 jvmtiError ret;
243 jint count;
244
245 debug_printf("jvmti GetFrameCount \n");
246 ret = JVMTI_ENV_PTR(jvmti)->GetFrameCount(JVMTI_ENV_ARG(jvmti, (jthread)thr), &count);
247 if (ret != JVMTI_ERROR_NONE) {
248 printf("Error: GetFrameCount returned %d \n", ret);
249 iGlobalStatus = 2;
250 }
251 return count;
252 }
253
254 JNIEXPORT void JNICALL
255 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_GetStackTrace(JNIEnv * env, jclass cls, jobject thr) {
256 jvmtiError ret;
257 jvmtiFrameInfo *stack_buffer = NULL;
258 jint count = 20;
259 jclass klass;
260 char *mname;
261 char *signature;
262 char *clname;
263 char *generic;
264 int i;
265
266
267 debug_printf("jvmti GetStackTrace \n");
268
269 ret = JVMTI_ENV_PTR(jvmti)->Allocate(JVMTI_ENV_ARG(jvmti, sizeof(jvmtiFrameInfo) * count), (unsigned char**)&stack_buffer);
270 if (ret != JVMTI_ERROR_NONE) {
271 printf("Error: Allocate failed with %d \n", ret);
272 iGlobalStatus = 2;
273 }
274
275
276 ret = JVMTI_ENV_PTR(jvmti)->GetStackTrace(JVMTI_ENV_ARG(jvmti, thr), 0, count , stack_buffer, &count);
277
278 if (ret != JVMTI_ERROR_NONE) {
279 printf("Error: GetStackTrace %d \n", ret);
280 iGlobalStatus = 2;
281 }
282
283 debug_printf(" Java Stack trace ---\n");
284
285 for (i = 0; i < count; i++) {
286 ret = JVMTI_ENV_PTR(jvmti)->GetMethodDeclaringClass(JVMTI_ENV_ARG(jvmti, stack_buffer[i].method), &klass);
287 if (ret != JVMTI_ERROR_NONE) {
288 printf("Error: GetMethodDeclaringClass %d \n", ret);
289 iGlobalStatus = 2;
290 return;
291 }
292
293 ret = JVMTI_ENV_PTR(jvmti)->GetClassSignature(JVMTI_ENV_ARG(jvmti, klass), &clname, &generic);
294 if (ret != JVMTI_ERROR_NONE) {
295 printf("Error: GetMethodDeclaringClass %d \n", ret);
296 iGlobalStatus = 2;
297 return;
298 }
299
300 ret = JVMTI_ENV_PTR(jvmti)->GetMethodName(JVMTI_ENV_ARG(jvmti, stack_buffer[i].method), &mname, &signature, &generic);
301 if (ret != JVMTI_ERROR_NONE) {
302 printf("Error: GetMethodDeclaringClass %d \n", ret);
303 iGlobalStatus = 2;
304 return;
305 }
306
307 debug_printf("[%d] %s::%s(%s) at %lld \n",i,clname, mname, signature, stack_buffer[i].location);
308
309
310 }
311
312
313 ret = JVMTI_ENV_PTR(jvmti)->Deallocate(JVMTI_ENV_ARG(jvmti, (unsigned char *)stack_buffer));
314 if (ret != JVMTI_ERROR_NONE) {
315 printf("Error: Deallocate failed with %d \n", ret);
316 iGlobalStatus = 2;
317 }
318
319
320 }
321
322 JNIEXPORT void JNICALL
323 Java_nsk_jvmti_unit_functions_nosuspendStackTrace_JvmtiTest_SaveThreadInfo(JNIEnv * env, jclass cls, jobject oobj) {
324
325 }
326
327 #ifdef __cplusplus
328 }
329 #endif