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/*
* Copyright (c) 2003, 2018, 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 <stdlib.h>
#include <string.h>
#include "jni_tools.h"
#include "agent_common.h"
#include "jvmti_tools.h"
#ifdef __cplusplus
extern "C" {
#endif
#define STATUS_FAILED 2
#define PASSED 0
/* counter for the wrong NativeMethodBind events
received during non-start or non-live phase */
static volatile int wrongBindEv = 0;
static volatile jint result = PASSED;
static jvmtiEnv *jvmti = NULL;
static jvmtiEventCallbacks callbacks;
static jrawMonitorID countLock;
static void lock(jvmtiEnv *jvmti_env, JNIEnv *jni_env) {
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorEnter,
jvmti_env, countLock)))
NSK_CPP_STUB2(FatalError, jni_env,
"failed to enter a raw monitor\n");
}
static void unlock(jvmtiEnv *jvmti_env, JNIEnv *jni_env) {
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(RawMonitorExit,
jvmti_env, countLock)))
NSK_CPP_STUB2(FatalError, jni_env,
"failed to exit a raw monitor\n");
}
/** callback functions **/
void JNICALL
NativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
jmethodID method, void *addr, void **new_addr) {
jvmtiPhase phase;
char *methNam = NULL, *methSig = NULL;
lock(jvmti_env, jni_env);
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase,
jvmti_env, &phase))) {
result = STATUS_FAILED;
NSK_COMPLAIN0("TEST FAILED: unable to obtain phase of the VM execution\n\
\tduring NativeMethodBind callback\n\n");
unlock(jvmti_env, jni_env);
return;
}
if (phase != JVMTI_PHASE_LIVE && phase != JVMTI_PHASE_START) {
unlock(jvmti_env, jni_env);
return;
}
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB5(GetMethodName,
jvmti_env, method, &methNam, &methSig, NULL))) {
result = STATUS_FAILED;
NSK_COMPLAIN0("TEST FAILED: unable to get method name during NativeMethodBind callback\n\n");
}
else
NSK_DISPLAY2("NativeMethodBind received for \"%s %s\"\n",
methNam, methSig);
if (!(methNam==NULL))
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate,
jvmti_env, (unsigned char*) methNam)))
NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method name\n\n");
if (!(methSig==NULL))
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate,
jvmti_env, (unsigned char*) methSig)))
NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method signature\n\n");
unlock(jvmti_env, jni_env);
}
void JNICALL
VMDeath(jvmtiEnv *jvmti_env, JNIEnv *env) {
NSK_DISPLAY0("VMDeath event received\n");
if (wrongBindEv != 0)
NSK_COMPLAIN1("TEST FAILED: there are %d NativeMethodBind events\n\
sent during non-start or non-live phase of the VM execution\n",
wrongBindEv);
if (result == STATUS_FAILED)
exit(95 + STATUS_FAILED);
}
/************************/
/* dummy method used only to provoke NativeMethodBind events */
JNIEXPORT jint JNICALL
Java_nsk_jvmti_NativeMethodBind_nativemethbind002_nativeMethod(
JNIEnv *env, jobject obj) {
NSK_DISPLAY0("inside the nativeMethod()\n\n");
return PASSED;
}
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_nativemethbind002(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_nativemethbind002(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_nativemethbind002(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jvmtiCapabilities caps;
/* init framework and parse options */
if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
return JNI_ERR;
/* create JVMTI environment */
if (!NSK_VERIFY((jvmti =
nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
return JNI_ERR;
/* create a raw monitor */
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(CreateRawMonitor,
jvmti, "_counter_lock", &countLock)))
return JNI_ERR;
/* add capability to generate compiled method events */
memset(&caps, 0, sizeof(jvmtiCapabilities));
caps.can_generate_native_method_bind_events = 1;
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities,
jvmti, &caps)))
return JNI_ERR;
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetCapabilities,
jvmti, &caps)))
return JNI_ERR;
if (!caps.can_generate_native_method_bind_events)
NSK_DISPLAY0("Warning: generation of native method bind events is not implemented\n");
/* set event callback */
NSK_DISPLAY0("setting event callbacks ...\n");
(void) memset(&callbacks, 0, sizeof(callbacks));
callbacks.NativeMethodBind = &NativeMethodBind;
callbacks.VMDeath = &VMDeath;
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks,
jvmti, &callbacks, sizeof(callbacks))))
return JNI_ERR;
NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n");
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
jvmti, JVMTI_ENABLE, JVMTI_EVENT_NATIVE_METHOD_BIND, NULL)))
return JNI_ERR;
if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL)))
return JNI_ERR;
NSK_DISPLAY0("enabling the events done\n\n");
return JNI_OK;
}
#ifdef __cplusplus
}
#endif
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