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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <string.h>
#include "jvmti.h"
extern "C" {
static jvmtiEnv* jvmti = NULL;
#define LOG(...) \
do { \
printf(__VA_ARGS__); \
printf("\n"); \
fflush(stdout); \
} while (0)
JNIEXPORT jint JNICALL
Java_StopAtExit_stopThread(JNIEnv *jni, jclass cls, jthread thr, jobject exception) {
return jvmti->StopThread(thr, exception);
}
/** Agent library initialization. */
JNIEXPORT jint JNICALL
Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
LOG("\nAgent_OnLoad started");
// create JVMTI environment
if (jvm->GetEnv((void **) (&jvmti), JVMTI_VERSION) != JNI_OK) {
return JNI_ERR;
}
// add specific capabilities for stoping thread
jvmtiCapabilities stopCaps;
memset(&stopCaps, 0, sizeof(stopCaps));
stopCaps.can_signal_thread = 1;
jvmtiError err = jvmti->AddCapabilities(&stopCaps);
if (err != JVMTI_ERROR_NONE) {
return JNI_ERR;
}
LOG("Agent_OnLoad finished\n");
return JNI_OK;
}
}
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