| /* |
| * 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 <stdio.h> |
| #include <string.h> |
| #include <jvmti.h> |
| #include "agent_common.h" |
| |
| #include "nsk_tools.h" |
| #include "JVMTITools.h" |
| #include "jvmti_tools.h" |
| #include "jni_tools.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #define STATUS_FAILED 2 |
| #define PASSED 0 |
| |
| /* tested methods */ |
| #define METH_NUM 2 |
| static const char *METHODS[][2] = { |
| {"nativeMethod", "(Z)V"}, |
| {"anotherNativeMethod", "()V"}, |
| }; |
| |
| /* event counters for the tested methods and expected numbers |
| of the events */ |
| static volatile int bindEv[][2] = { |
| {0, 1}, |
| {0, 1} |
| }; |
| |
| static const char *CLASS_SIG = |
| "Lnsk/jvmti/NativeMethodBind/nativemethbind001$TestedClass;"; |
| |
| 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, *methSig; |
| int i; |
| |
| lock(jvmti_env, jni_env); |
| |
| NSK_DISPLAY0(">>>> NativeMethodBind event received\n"); |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti_env, &phase))) { |
| result = STATUS_FAILED; |
| unlock(jvmti_env, jni_env); |
| return; |
| } |
| |
| if (phase != JVMTI_PHASE_START && phase != JVMTI_PHASE_LIVE) { |
| 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"); |
| unlock(jvmti_env, jni_env); |
| return; |
| } |
| |
| NSK_DISPLAY2("method: \"%s %s\"\n", methNam, methSig); |
| |
| for (i=0; i<METH_NUM; i++) { |
| if ((strcmp(methNam,METHODS[i][0]) == 0) && |
| (strcmp(methSig,METHODS[i][1]) == 0)) { |
| bindEv[i][0]++; |
| |
| NSK_DISPLAY1("CHECK PASSED: NativeMethodBind event received for the method:\n\ |
| \t\"%s\" as expected\n", |
| methNam); |
| break; |
| } |
| } |
| |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*) methNam))) { |
| result = STATUS_FAILED; |
| NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method name\n\n"); |
| } |
| if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(Deallocate, |
| jvmti_env, (unsigned char*) methSig))) { |
| result = STATUS_FAILED; |
| NSK_COMPLAIN0("TEST FAILED: unable to deallocate memory pointed to method signature\n\n"); |
| } |
| |
| NSK_DISPLAY0("<<<<\n\n"); |
| |
| unlock(jvmti_env, jni_env); |
| } |
| /************************/ |
| |
| /* dummy method used only to provoke NativeMethodBind event */ |
| static void JNICALL |
| anotherNativeMethod(JNIEnv *env, jobject obj) { |
| NSK_DISPLAY0("inside the anotherNativeMethod()\n"); |
| } |
| |
| /* dummy method used only to provoke NativeMethodBind event */ |
| JNIEXPORT void JNICALL |
| Java_nsk_jvmti_NativeMethodBind_nativemethbind001_nativeMethod( |
| JNIEnv *env, jobject obj, jboolean registerNative) { |
| jclass testedCls = NULL; |
| JNINativeMethod meth; |
| |
| NSK_DISPLAY0("Inside the nativeMethod()\n"); |
| |
| if (registerNative == JNI_TRUE) { |
| NSK_DISPLAY1("Finding class \"%s\" ...\n", CLASS_SIG); |
| if (!NSK_JNI_VERIFY(env, (testedCls = |
| NSK_CPP_STUB2(FindClass, env, CLASS_SIG)) != NULL)) { |
| result = STATUS_FAILED; |
| NSK_COMPLAIN1("TEST FAILURE: unable to find class \"%s\"\n\n", |
| CLASS_SIG); |
| return; |
| } |
| |
| meth.name = (char *) METHODS[1][0]; |
| meth.signature = (char *) METHODS[1][1]; |
| meth.fnPtr = (void *) &anotherNativeMethod; |
| |
| NSK_DISPLAY3("Calling RegisterNatives() with \"%s %s\"\n\ |
| \tfor class \"%s\" ...\n", |
| METHODS[1][0], METHODS[1][1], CLASS_SIG); |
| if (!NSK_JNI_VERIFY_VOID(env, (NSK_CPP_STUB4(RegisterNatives, |
| env, testedCls, &meth, 1)) != 0)) { |
| result = STATUS_FAILED; |
| NSK_COMPLAIN3("TEST FAILURE: unable to RegisterNatives() \"%s %s\" for class \"%s\"\n\n", |
| METHODS[1][0], METHODS[1][1], CLASS_SIG); |
| } |
| } |
| } |
| |
| JNIEXPORT jint JNICALL |
| Java_nsk_jvmti_NativeMethodBind_nativemethbind001_check( |
| JNIEnv *env, jobject obj) { |
| int i; |
| |
| for (i=0; i<METH_NUM; i++) |
| if (bindEv[i][0] == bindEv[i][1]) { |
| NSK_DISPLAY2("CHECK PASSED: %d NativeMethodBind event(s) for the method \"%s\" as expected\n", |
| bindEv[i][0], METHODS[i][0]); |
| } |
| else { |
| result = STATUS_FAILED; |
| NSK_COMPLAIN3("TEST FAILED: wrong number of NativeMethodBind events for the method \"%s\":\n\ |
| got: %d\texpected: %d\n\n", |
| METHODS[i][0], bindEv[i][0], bindEv[i][1]); |
| } |
| |
| return result; |
| } |
| |
| #ifdef STATIC_BUILD |
| JNIEXPORT jint JNICALL Agent_OnLoad_nativemethbind001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNICALL Agent_OnAttach_nativemethbind001(JavaVM *jvm, char *options, void *reserved) { |
| return Agent_Initialize(jvm, options, reserved); |
| } |
| JNIEXPORT jint JNI_OnLoad_nativemethbind001(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; |
| 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; |
| NSK_DISPLAY0("enabling the events done\n\n"); |
| |
| return JNI_OK; |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
