247 lines
8.2 KiB
C++
247 lines
8.2 KiB
C++
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <jvmti.h>
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#include "agent_common.h"
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#include "nsk_tools.h"
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#include "JVMTITools.h"
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#include "jvmti_tools.h"
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#include "jni_tools.h"
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extern "C" {
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#define STATUS_FAILED 2
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#define PASSED 0
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/* tested methods */
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#define METH_NUM 2
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static const char *METHODS[][2] = {
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{ "nativeMethod", "(Z)V" },
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{ "anotherNativeMethod", "()V" },
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};
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/* event counters for the tested methods and expected numbers
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of the events */
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static volatile int bindEv[][2] = {
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{ 0, 1 },
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{ 0, 1 }
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};
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static const char *CLASS_SIG =
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"Lnsk/jvmti/NativeMethodBind/nativemethbind001$TestedClass;";
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static volatile jint result = PASSED;
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static jvmtiEnv *jvmti = NULL;
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static jvmtiEventCallbacks callbacks;
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static jrawMonitorID countLock;
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static void lock(jvmtiEnv *jvmti_env, JNIEnv *jni_env) {
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if (!NSK_JVMTI_VERIFY(jvmti_env->RawMonitorEnter(countLock)))
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jni_env->FatalError("failed to enter a raw monitor\n");
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}
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static void unlock(jvmtiEnv *jvmti_env, JNIEnv *jni_env) {
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if (!NSK_JVMTI_VERIFY(jvmti_env->RawMonitorExit(countLock)))
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jni_env->FatalError("failed to exit a raw monitor\n");
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}
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/** callback functions **/
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void JNICALL
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NativeMethodBind(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
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jmethodID method, void *addr, void **new_addr) {
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jvmtiPhase phase;
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char *methNam, *methSig;
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int i;
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lock(jvmti_env, jni_env);
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NSK_DISPLAY0(">>>> NativeMethodBind event received\n");
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if (!NSK_JVMTI_VERIFY(jvmti_env->GetPhase(&phase))) {
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result = STATUS_FAILED;
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unlock(jvmti_env, jni_env);
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return;
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}
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if (phase != JVMTI_PHASE_START && phase != JVMTI_PHASE_LIVE) {
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unlock(jvmti_env, jni_env);
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return;
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}
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if (!NSK_JVMTI_VERIFY(jvmti_env->GetMethodName(method, &methNam, &methSig, NULL))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to get method name during NativeMethodBind callback\n\n");
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unlock(jvmti_env, jni_env);
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return;
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}
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NSK_DISPLAY2("method: \"%s %s\"\n", methNam, methSig);
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for (i=0; i<METH_NUM; i++) {
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if ((strcmp(methNam,METHODS[i][0]) == 0) &&
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(strcmp(methSig,METHODS[i][1]) == 0)) {
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bindEv[i][0]++;
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NSK_DISPLAY1(
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"CHECK PASSED: NativeMethodBind event received for the method:\n"
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"\t\"%s\" as expected\n",
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methNam);
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break;
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}
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}
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if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*) methNam))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method name\n\n");
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}
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if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*) methSig))) {
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result = STATUS_FAILED;
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NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method signature\n\n");
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}
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NSK_DISPLAY0("<<<<\n\n");
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unlock(jvmti_env, jni_env);
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}
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/************************/
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/* dummy method used only to provoke NativeMethodBind event */
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static void JNICALL
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anotherNativeMethod(JNIEnv *env, jobject obj) {
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NSK_DISPLAY0("inside the anotherNativeMethod()\n");
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}
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/* dummy method used only to provoke NativeMethodBind event */
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JNIEXPORT void JNICALL
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Java_nsk_jvmti_NativeMethodBind_nativemethbind001_nativeMethod(
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JNIEnv *env, jobject obj, jboolean registerNative) {
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jclass testedCls = NULL;
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JNINativeMethod meth;
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NSK_DISPLAY0("Inside the nativeMethod()\n");
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if (registerNative == JNI_TRUE) {
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NSK_DISPLAY1("Finding class \"%s\" ...\n", CLASS_SIG);
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if (!NSK_JNI_VERIFY(env, (testedCls = env->FindClass(CLASS_SIG)) != NULL)) {
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result = STATUS_FAILED;
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NSK_COMPLAIN1("TEST FAILURE: unable to find class \"%s\"\n\n",
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CLASS_SIG);
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return;
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}
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meth.name = (char *) METHODS[1][0];
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meth.signature = (char *) METHODS[1][1];
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meth.fnPtr = (void *) &anotherNativeMethod;
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NSK_DISPLAY3("Calling RegisterNatives() with \"%s %s\"\n"
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"\tfor class \"%s\" ...\n",
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METHODS[1][0], METHODS[1][1], CLASS_SIG);
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if (!NSK_JNI_VERIFY_VOID(env, (env->RegisterNatives(testedCls, &meth, 1)) != 0)) {
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result = STATUS_FAILED;
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NSK_COMPLAIN3("TEST FAILURE: unable to RegisterNatives() \"%s %s\" for class \"%s\"\n\n",
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METHODS[1][0], METHODS[1][1], CLASS_SIG);
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}
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}
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_NativeMethodBind_nativemethbind001_check(
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JNIEnv *env, jobject obj) {
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int i;
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for (i=0; i<METH_NUM; i++)
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if (bindEv[i][0] == bindEv[i][1]) {
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NSK_DISPLAY2("CHECK PASSED: %d NativeMethodBind event(s) for the method \"%s\" as expected\n",
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bindEv[i][0], METHODS[i][0]);
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}
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else {
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result = STATUS_FAILED;
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NSK_COMPLAIN3(
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"TEST FAILED: wrong number of NativeMethodBind events for the method \"%s\":\n"
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"got: %d\texpected: %d\n\n",
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METHODS[i][0], bindEv[i][0], bindEv[i][1]);
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}
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return result;
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_nativemethbind001(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNICALL Agent_OnAttach_nativemethbind001(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNI_OnLoad_nativemethbind001(JavaVM *jvm, char *options, void *reserved) {
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return JNI_VERSION_1_8;
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}
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#endif
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jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
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jvmtiCapabilities caps;
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/* init framework and parse options */
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if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
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return JNI_ERR;
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/* create JVMTI environment */
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if (!NSK_VERIFY((jvmti =
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nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
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return JNI_ERR;
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/* create a raw monitor */
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if (!NSK_JVMTI_VERIFY(jvmti->CreateRawMonitor("_counter_lock", &countLock)))
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return JNI_ERR;
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/* add capability to generate compiled method events */
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memset(&caps, 0, sizeof(jvmtiCapabilities));
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caps.can_generate_native_method_bind_events = 1;
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if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps)))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(jvmti->GetCapabilities(&caps)))
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return JNI_ERR;
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if (!caps.can_generate_native_method_bind_events)
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NSK_DISPLAY0("Warning: generation of native method bind events is not implemented\n");
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/* set event callback */
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NSK_DISPLAY0("setting event callbacks ...\n");
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(void) memset(&callbacks, 0, sizeof(callbacks));
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callbacks.NativeMethodBind = &NativeMethodBind;
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if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks))))
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return JNI_ERR;
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NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n");
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if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE,
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JVMTI_EVENT_NATIVE_METHOD_BIND,
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NULL)))
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return JNI_ERR;
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NSK_DISPLAY0("enabling the events done\n\n");
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return JNI_OK;
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}
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}
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