1 /*
2 * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
208 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)name);
209 check_jvmti_error(jvmti, err, "deallocate name");
210 }
211 if (signature != NULL) {
212 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)signature);
213 check_jvmti_error(jvmti, err, "deallocate signature");
214 }
215 if (generic_ptr != NULL) {
216 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)generic_ptr);
217 check_jvmti_error(jvmti, err, "deallocate generic_ptr");
218 }
219
220 err = (*jvmti)->RawMonitorExit(jvmti, lock);
221 check_jvmti_error(jvmti, err, "raw monitor exit");
222 }
223
224 /* Agent_OnLoad() is called first, we prepare for a COMPILED_METHOD_LOAD
225 * event here.
226 */
227 JNIEXPORT jint JNICALL
228 Agent_OnLoad(JavaVM *vm, char *options, void *reserved)
229 {
230 jint rc;
231 jvmtiError err;
232 jvmtiCapabilities capabilities;
233 jvmtiEventCallbacks callbacks;
234
235 fp = fopen(OUTPUT_FILE, "w");
236 if (fp == NULL) {
237 fatal_error("ERROR: %s: Unable to create output file\n", OUTPUT_FILE);
238 return -1;
239 }
240
241 /* Get JVMTI environment */
242 rc = (*vm)->GetEnv(vm, (void **)&jvmti, JVMTI_VERSION);
243 if (rc != JNI_OK) {
244 fatal_error(
245 "ERROR: Unable to create jvmtiEnv, GetEnv failed, error=%d\n", rc);
246 return -1;
247 }
248
255 /* set JVMTI callbacks for events */
256 memset(&callbacks, 0, sizeof(callbacks));
257 callbacks.CompiledMethodLoad = &compiled_method_load;
258 err = (*jvmti)->SetEventCallbacks(jvmti, &callbacks, sizeof(callbacks));
259 check_jvmti_error(jvmti, err, "set event callbacks");
260
261 /* enable JVMTI events */
262 err = (*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE,
263 JVMTI_EVENT_COMPILED_METHOD_LOAD, NULL);
264 check_jvmti_error(jvmti, err, "set event notify");
265
266 /* create coordination monitor */
267 err = (*jvmti)->CreateRawMonitor(jvmti, "agent lock", &lock);
268 check_jvmti_error(jvmti, err, "create raw monitor");
269
270 return 0;
271 }
272
273 /* Agent_OnUnload() is called last */
274 JNIEXPORT void JNICALL
275 Agent_OnUnload(JavaVM *vm)
276 {
277 }
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1 /*
2 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * - Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * - Neither the name of Oracle nor the names of its
16 * contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
20 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
208 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)name);
209 check_jvmti_error(jvmti, err, "deallocate name");
210 }
211 if (signature != NULL) {
212 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)signature);
213 check_jvmti_error(jvmti, err, "deallocate signature");
214 }
215 if (generic_ptr != NULL) {
216 err = (*jvmti)->Deallocate(jvmti, (unsigned char*)generic_ptr);
217 check_jvmti_error(jvmti, err, "deallocate generic_ptr");
218 }
219
220 err = (*jvmti)->RawMonitorExit(jvmti, lock);
221 check_jvmti_error(jvmti, err, "raw monitor exit");
222 }
223
224 /* Agent_OnLoad() is called first, we prepare for a COMPILED_METHOD_LOAD
225 * event here.
226 */
227 JNIEXPORT jint JNICALL
228 DEF_Agent_OnLoad(JavaVM *vm, char *options, void *reserved)
229 {
230 jint rc;
231 jvmtiError err;
232 jvmtiCapabilities capabilities;
233 jvmtiEventCallbacks callbacks;
234
235 fp = fopen(OUTPUT_FILE, "w");
236 if (fp == NULL) {
237 fatal_error("ERROR: %s: Unable to create output file\n", OUTPUT_FILE);
238 return -1;
239 }
240
241 /* Get JVMTI environment */
242 rc = (*vm)->GetEnv(vm, (void **)&jvmti, JVMTI_VERSION);
243 if (rc != JNI_OK) {
244 fatal_error(
245 "ERROR: Unable to create jvmtiEnv, GetEnv failed, error=%d\n", rc);
246 return -1;
247 }
248
255 /* set JVMTI callbacks for events */
256 memset(&callbacks, 0, sizeof(callbacks));
257 callbacks.CompiledMethodLoad = &compiled_method_load;
258 err = (*jvmti)->SetEventCallbacks(jvmti, &callbacks, sizeof(callbacks));
259 check_jvmti_error(jvmti, err, "set event callbacks");
260
261 /* enable JVMTI events */
262 err = (*jvmti)->SetEventNotificationMode(jvmti, JVMTI_ENABLE,
263 JVMTI_EVENT_COMPILED_METHOD_LOAD, NULL);
264 check_jvmti_error(jvmti, err, "set event notify");
265
266 /* create coordination monitor */
267 err = (*jvmti)->CreateRawMonitor(jvmti, "agent lock", &lock);
268 check_jvmti_error(jvmti, err, "create raw monitor");
269
270 return 0;
271 }
272
273 /* Agent_OnUnload() is called last */
274 JNIEXPORT void JNICALL
275 DEF_Agent_OnUnload(JavaVM *vm)
276 {
277 }
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